* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: (49 commits)
IB: Set class_dev->dev in core for nice device symlink
IB/ehca: Implement modify_port
IB/umad: Clarify documentation of transaction ID
IPoIB/cm: spin_lock_irqsave() -> spin_lock_irq() replacements
IB/mad: Change SMI to use enums rather than magic return codes
IB/umad: Implement GRH handling for sent/received MADs
IB/ipoib: Use ib_init_ah_from_path to initialize ah_attr
IB/sa: Set src_path_bits correctly in ib_init_ah_from_path()
IB/ucm: Simplify ib_ucm_event()
RDMA/ucma: Simplify ucma_get_event()
IB/mthca: Simplify CQ cleaning in mthca_free_qp()
IB/mthca: Fix mthca_write_mtt() on HCAs with hidden memory
IB/mthca: Update HCA firmware revisions
IB/ipath: Fix WC format drift between user and kernel space
IB/ipath: Check that a UD work request's address handle is valid
IB/ipath: Remove duplicate stuff from ipath_verbs.h
IB/ipath: Check reserved memory keys
IB/ipath: Fix unit selection when all CPU affinity bits set
IB/ipath: Don't allow QPs 0 and 1 to be opened multiple times
IB/ipath: Disable IB link earlier in shutdown sequence
...
Leonid I Ananiev <leonid.i.ananiev@intel.com>
Linas Vepstas <linas@austin.ibm.com>
Matthieu CASTET <castet.matthieu@free.fr>
+Michael Buesch <mb@bu3sch.de>
+Michael Buesch <mbuesch@freenet.de>
Michel Dänzer <michel@tungstengraphics.com>
Mitesh shah <mshah@teja.com>
Morten Welinder <terra@gnome.org>
S: Seattle, Washington 98126-2010
S: USA
+N: Johannes Berg
+E: johannes@sipsolutions.net
+W: http://johannes.sipsolutions.net/
+P: 1024D/9AB78CA5 AD02 0176 4E29 C137 1DF6 08D2 FC44 CF86 9AB7 8CA5
+D: powerpc & 802.11 hacker
+
N: Stephen R. van den Berg (AKA BuGless)
E: berg@pool.informatik.rwth-aachen.de
D: General kernel, gcc, and libc hacker
S: Germany
N: Arnaldo Carvalho de Melo
-E: acme@mandriva.com
E: acme@ghostprotocols.net
+E: arnaldo.melo@gmail.com
+E: acme@redhat.com
W: http://oops.ghostprotocols.net:81/blog/
P: 1024D/9224DF01 D5DF E3BB E3C8 BCBB F8AD 841A B6AB 4681 9224 DF01
D: IPX, LLC, DCCP, cyc2x, wl3501_cs, net/ hacks
-S: Mandriva
-S: R. Tocantins, 89 - Cristo Rei
-S: 80050-430 - Curitiba - Paraná
+S: R. Brasílio Itiberê, 4270/1010 - Água Verde
+S: 80240-060 - Curitiba - Paraná
S: Brazil
N: Karsten Merker
---------------------------
-What: IPv4 only connection tracking/NAT/helpers
-When: 2.6.22
-Why: The new layer 3 independant connection tracking replaces the old
- IPv4 only version. After some stabilization of the new code the
- old one will be removed.
-Who: Patrick McHardy <kaber@trash.net>
-
----------------------------
-
What: ACPI hooks (X86_SPEEDSTEP_CENTRINO_ACPI) in speedstep-centrino driver
When: December 2006
Why: Speedstep-centrino driver with ACPI hooks and acpi-cpufreq driver are
---------------------------
-What: Wireless extensions over netlink (CONFIG_NET_WIRELESS_RTNETLINK)
-When: with the merge of wireless-dev, 2.6.22 or later
-Why: The option/code is
- * not enabled on most kernels
- * not required by any userspace tools (except an experimental one,
- and even there only for some parts, others use ioctl)
- * pointless since wext is no longer evolving and the ioctl
- interface needs to be kept
-Who: Johannes Berg <johannes@sipsolutions.net>
-
----------------------------
-
What: i8xx_tco watchdog driver
When: in 2.6.22
Why: the i8xx_tco watchdog driver has been replaced by the iTCO_wdt
Who: Wim Van Sebroeck <wim@iguana.be>
---------------------------
+
+What: Multipath cached routing support in ipv4
+When: in 2.6.23
+Why: Code was merged, then submitter immediately disappeared leaving
+ us with no maintainer and lots of bugs. The code should not have
+ been merged in the first place, and many aspects of it's
+ implementation are blocking more critical core networking
+ development. It's marked EXPERIMENTAL and no distribution
+ enables it because it cause obscure crashes due to unfixable bugs
+ (interfaces don't return errors so memory allocation can't be
+ handled, calling contexts of these interfaces make handling
+ errors impossible too because they get called after we've
+ totally commited to creating a route object, for example).
+ This problem has existed for years and no forward progress
+ has ever been made, and nobody steps up to try and salvage
+ this code, so we're going to finally just get rid of it.
+Who: David S. Miller <davem@davemloft.net>
+
+---------------------------
+ ====================
kAFS: AFS FILESYSTEM
====================
-ABOUT
-=====
+Contents:
+
+ - Overview.
+ - Usage.
+ - Mountpoints.
+ - Proc filesystem.
+ - The cell database.
+ - Security.
+ - Examples.
+
+
+========
+OVERVIEW
+========
-This filesystem provides a fairly simple AFS filesystem driver. It is under
-development and only provides very basic facilities. It does not yet support
-the following AFS features:
+This filesystem provides a fairly simple secure AFS filesystem driver. It is
+under development and does not yet provide the full feature set. The features
+it does support include:
- (*) Write support.
- (*) Communications security.
- (*) Local caching.
- (*) pioctl() system call.
- (*) Automatic mounting of embedded mountpoints.
+ (*) Security (currently only AFS kaserver and KerberosIV tickets).
+ (*) File reading.
+ (*) Automounting.
+
+It does not yet support the following AFS features:
+
+ (*) Write support.
+
+ (*) Local caching.
+
+ (*) pioctl() system call.
+
+
+===========
+COMPILATION
+===========
+
+The filesystem should be enabled by turning on the kernel configuration
+options:
+
+ CONFIG_AF_RXRPC - The RxRPC protocol transport
+ CONFIG_RXKAD - The RxRPC Kerberos security handler
+ CONFIG_AFS - The AFS filesystem
+
+Additionally, the following can be turned on to aid debugging:
+
+ CONFIG_AF_RXRPC_DEBUG - Permit AF_RXRPC debugging to be enabled
+ CONFIG_AFS_DEBUG - Permit AFS debugging to be enabled
+
+They permit the debugging messages to be turned on dynamically by manipulating
+the masks in the following files:
+
+ /sys/module/af_rxrpc/parameters/debug
+ /sys/module/afs/parameters/debug
+
+
+=====
USAGE
=====
When inserting the driver modules the root cell must be specified along with a
list of volume location server IP addresses:
- insmod rxrpc.o
+ insmod af_rxrpc.o
+ insmod rxkad.o
insmod kafs.o rootcell=cambridge.redhat.com:172.16.18.73:172.16.18.91
-The first module is a driver for the RxRPC remote operation protocol, and the
-second is the actual filesystem driver for the AFS filesystem.
+The first module is the AF_RXRPC network protocol driver. This provides the
+RxRPC remote operation protocol and may also be accessed from userspace. See:
+
+ Documentation/networking/rxrpc.txt
+
+The second module is the kerberos RxRPC security driver, and the third module
+is the actual filesystem driver for the AFS filesystem.
Once the module has been loaded, more modules can be added by the following
procedure:
echo add grand.central.org 18.7.14.88:128.2.191.224 >/proc/fs/afs/cells
Where the parameters to the "add" command are the name of a cell and a list of
-volume location servers within that cell.
+volume location servers within that cell, with the latter separated by colons.
Filesystems can be mounted anywhere by commands similar to the following:
mount -t afs "#root.afs." /afs
mount -t afs "#root.cell." /afs/cambridge
- NB: When using this on Linux 2.4, the mount command has to be different,
- since the filesystem doesn't have access to the device name argument:
-
- mount -t afs none /afs -ovol="#root.afs."
-
Where the initial character is either a hash or a percent symbol depending on
whether you definitely want a R/W volume (hash) or whether you'd prefer a R/O
volume, but are willing to use a R/W volume instead (percent).
Additional cells can be added through /proc (see later section).
+===========
MOUNTPOINTS
===========
-AFS has a concept of mountpoints. These are specially formatted symbolic links
-(of the same form as the "device name" passed to mount). kAFS presents these
-to the user as directories that have special properties:
+AFS has a concept of mountpoints. In AFS terms, these are specially formatted
+symbolic links (of the same form as the "device name" passed to mount). kAFS
+presents these to the user as directories that have a follow-link capability
+(ie: symbolic link semantics). If anyone attempts to access them, they will
+automatically cause the target volume to be mounted (if possible) on that site.
- (*) They cannot be listed. Running a program like "ls" on them will incur an
- EREMOTE error (Object is remote).
+Automatically mounted filesystems will be automatically unmounted approximately
+twenty minutes after they were last used. Alternatively they can be unmounted
+directly with the umount() system call.
- (*) Other objects can't be looked up inside of them. This also incurs an
- EREMOTE error.
+Manually unmounting an AFS volume will cause any idle submounts upon it to be
+culled first. If all are culled, then the requested volume will also be
+unmounted, otherwise error EBUSY will be returned.
- (*) They can be queried with the readlink() system call, which will return
- the name of the mountpoint to which they point. The "readlink" program
- will also work.
+This can be used by the administrator to attempt to unmount the whole AFS tree
+mounted on /afs in one go by doing:
- (*) They can be mounted on (which symbolic links can't).
+ umount /afs
+===============
PROC FILESYSTEM
===============
-The rxrpc module creates a number of files in various places in the /proc
-filesystem:
-
- (*) Firstly, some information files are made available in a directory called
- "/proc/net/rxrpc/". These list the extant transport endpoint, peer,
- connection and call records.
-
- (*) Secondly, some control files are made available in a directory called
- "/proc/sys/rxrpc/". Currently, all these files can be used for is to
- turn on various levels of tracing.
-
The AFS modules creates a "/proc/fs/afs/" directory and populates it:
- (*) A "cells" file that lists cells currently known to the afs module.
+ (*) A "cells" file that lists cells currently known to the afs module and
+ their usage counts:
+
+ [root@andromeda ~]# cat /proc/fs/afs/cells
+ USE NAME
+ 3 cambridge.redhat.com
(*) A directory per cell that contains files that list volume location
servers, volumes, and active servers known within that cell.
+ [root@andromeda ~]# cat /proc/fs/afs/cambridge.redhat.com/servers
+ USE ADDR STATE
+ 4 172.16.18.91 0
+ [root@andromeda ~]# cat /proc/fs/afs/cambridge.redhat.com/vlservers
+ ADDRESS
+ 172.16.18.91
+ [root@andromeda ~]# cat /proc/fs/afs/cambridge.redhat.com/volumes
+ USE STT VLID[0] VLID[1] VLID[2] NAME
+ 1 Val 20000000 20000001 20000002 root.afs
+
+=================
THE CELL DATABASE
=================
-The filesystem maintains an internal database of all the cells it knows and
-the IP addresses of the volume location servers for those cells. The cell to
-which the computer belongs is added to the database when insmod is performed
-by the "rootcell=" argument.
+The filesystem maintains an internal database of all the cells it knows and the
+IP addresses of the volume location servers for those cells. The cell to which
+the system belongs is added to the database when insmod is performed by the
+"rootcell=" argument or, if compiled in, using a "kafs.rootcell=" argument on
+the kernel command line.
Further cells can be added by commands similar to the following:
No other cell database operations are available at this time.
+========
+SECURITY
+========
+
+Secure operations are initiated by acquiring a key using the klog program. A
+very primitive klog program is available at:
+
+ http://people.redhat.com/~dhowells/rxrpc/klog.c
+
+This should be compiled by:
+
+ make klog LDLIBS="-lcrypto -lcrypt -lkrb4 -lkeyutils"
+
+And then run as:
+
+ ./klog
+
+Assuming it's successful, this adds a key of type RxRPC, named for the service
+and cell, eg: "afs@<cellname>". This can be viewed with the keyctl program or
+by cat'ing /proc/keys:
+
+ [root@andromeda ~]# keyctl show
+ Session Keyring
+ -3 --alswrv 0 0 keyring: _ses.3268
+ 2 --alswrv 0 0 \_ keyring: _uid.0
+ 111416553 --als--v 0 0 \_ rxrpc: afs@CAMBRIDGE.REDHAT.COM
+
+Currently the username, realm, password and proposed ticket lifetime are
+compiled in to the program.
+
+It is not required to acquire a key before using AFS facilities, but if one is
+not acquired then all operations will be governed by the anonymous user parts
+of the ACLs.
+
+If a key is acquired, then all AFS operations, including mounts and automounts,
+made by a possessor of that key will be secured with that key.
+
+If a file is opened with a particular key and then the file descriptor is
+passed to a process that doesn't have that key (perhaps over an AF_UNIX
+socket), then the operations on the file will be made with key that was used to
+open the file.
+
+
+========
EXAMPLES
========
-Here's what I use to test this. Some of the names and IP addresses are local
-to my internal DNS. My "root.afs" partition has a mount point within it for
+Here's what I use to test this. Some of the names and IP addresses are local
+to my internal DNS. My "root.afs" partition has a mount point within it for
some public volumes volumes.
-insmod -S /tmp/rxrpc.o
-insmod -S /tmp/kafs.o rootcell=cambridge.redhat.com:172.16.18.73:172.16.18.91
+insmod /tmp/rxrpc.o
+insmod /tmp/rxkad.o
+insmod /tmp/kafs.o rootcell=cambridge.redhat.com:172.16.18.91
mount -t afs \%root.afs. /afs
mount -t afs \%cambridge.redhat.com:root.cell. /afs/cambridge.redhat.com/
-echo add grand.central.org 18.7.14.88:128.2.191.224 > /proc/fs/afs/cells
+echo add grand.central.org 18.7.14.88:128.2.191.224 > /proc/fs/afs/cells
mount -t afs "#grand.central.org:root.cell." /afs/grand.central.org/
mount -t afs "#grand.central.org:root.archive." /afs/grand.central.org/archive
mount -t afs "#grand.central.org:root.contrib." /afs/grand.central.org/contrib
mount -t afs "#grand.central.org:root.software." /afs/grand.central.org/software
mount -t afs "#grand.central.org:root.user." /afs/grand.central.org/user
-umount /afs/grand.central.org/user
-umount /afs/grand.central.org/software
-umount /afs/grand.central.org/service
-umount /afs/grand.central.org/project
-umount /afs/grand.central.org/doc
-umount /afs/grand.central.org/contrib
-umount /afs/grand.central.org/archive
-umount /afs/grand.central.org
-umount /afs/cambridge.redhat.com
umount /afs
rmmod kafs
+rmmod rxkad
rmmod rxrpc
be dropped. The default settings limit warning messages to one every five
seconds.
+warnings
+--------
+
+This controls console messages from the networking stack that can occur because
+of problems on the network like duplicate address or bad checksums. Normally,
+this should be enabled, but if the problem persists the messages can be
+disabled.
+
+
netdev_max_backlog
------------------
void unregister_key_type(struct key_type *type);
+Under some circumstances, it may be desirable to desirable to deal with a
+bundle of keys. The facility provides access to the keyring type for managing
+such a bundle:
+
+ struct key_type key_type_keyring;
+
+This can be used with a function such as request_key() to find a specific
+keyring in a process's keyrings. A keyring thus found can then be searched
+with keyring_search(). Note that it is not possible to use request_key() to
+search a specific keyring, so using keyrings in this way is of limited utility.
+
+
===================================
NOTES ON ACCESSING PAYLOAD CONTENTS
===================================
documented above.
To create multiple bonding devices with differing options, it
-is necessary to load the bonding driver multiple times. Note that
-current versions of the sysconfig network initialization scripts
-handle this automatically; if your distro uses these scripts, no
-special action is needed. See the section Configuring Bonding
-Devices, above, if you're not sure about your network initialization
-scripts.
-
- To load multiple instances of the module, it is necessary to
-specify a different name for each instance (the module loading system
-requires that every loaded module, even multiple instances of the same
-module, have a unique name). This is accomplished by supplying
-multiple sets of bonding options in /etc/modprobe.conf, for example:
-
-alias bond0 bonding
-options bond0 -o bond0 mode=balance-rr miimon=100
-
-alias bond1 bonding
-options bond1 -o bond1 mode=balance-alb miimon=50
-
- will load the bonding module two times. The first instance is
-named "bond0" and creates the bond0 device in balance-rr mode with an
-miimon of 100. The second instance is named "bond1" and creates the
-bond1 device in balance-alb mode with an miimon of 50.
-
- In some circumstances (typically with older distributions),
-the above does not work, and the second bonding instance never sees
-its options. In that case, the second options line can be substituted
-as follows:
-
-install bond1 /sbin/modprobe --ignore-install bonding -o bond1 \
- mode=balance-alb miimon=50
+is necessary to use bonding parameters exported by sysfs, documented
+in the section below.
- This may be repeated any number of times, specifying a new and
-unique name in place of bond1 for each subsequent instance.
3.4 Configuring Bonding Manually via Sysfs
------------------------------------------
coverage value are also acceptable. The higher the number, the more
restrictive this setting (see [RFC 4340, sec. 9.2.1]).
+The following two options apply to CCID 3 exclusively and are getsockopt()-only.
+In either case, a TFRC info struct (defined in <linux/tfrc.h>) is returned.
+DCCP_SOCKOPT_CCID_RX_INFO
+ Returns a `struct tfrc_rx_info' in optval; the buffer for optval and
+ optlen must be set to at least sizeof(struct tfrc_rx_info).
+DCCP_SOCKOPT_CCID_TX_INFO
+ Returns a `struct tfrc_tx_info' in optval; the buffer for optval and
+ optlen must be set to at least sizeof(struct tfrc_tx_info).
+
+
Sysctl variables
================
Several DCCP default parameters can be managed by the following sysctls
because they eat maximum 1.5K of memory, but they tend
to live longer. Cf. tcp_max_orphans.
-tcp_frto - BOOLEAN
+tcp_frto - INTEGER
Enables F-RTO, an enhanced recovery algorithm for TCP retransmission
timeouts. It is particularly beneficial in wireless environments
where packet loss is typically due to random radio interference
- rather than intermediate router congestion.
+ rather than intermediate router congestion. If set to 1, basic
+ version is enabled. 2 enables SACK enhanced F-RTO, which is
+ EXPERIMENTAL. The basic version can be used also when SACK is
+ enabled for a flow through tcp_sack sysctl.
+
+tcp_frto_response - INTEGER
+ When F-RTO has detected that a TCP retransmission timeout was
+ spurious (i.e, the timeout would have been avoided had TCP set a
+ longer retransmission timeout), TCP has several options what to do
+ next. Possible values are:
+ 0 Rate halving based; a smooth and conservative response,
+ results in halved cwnd and ssthresh after one RTT
+ 1 Very conservative response; not recommended because even
+ though being valid, it interacts poorly with the rest of
+ Linux TCP, halves cwnd and ssthresh immediately
+ 2 Aggressive response; undoes congestion control measures
+ that are now known to be unnecessary (ignoring the
+ possibility of a lost retransmission that would require
+ TCP to be more cautious), cwnd and ssthresh are restored
+ to the values prior timeout
+ Default: 0 (rate halving based)
tcp_keepalive_time - INTEGER
How often TCP sends out keepalive messages when keepalive is enabled.
Functional default: enabled if local forwarding is disabled.
disabled if local forwarding is enabled.
+accept_source_route - INTEGER
+ Accept source routing (routing extension header).
+
+ > 0: Accept routing header.
+ = 0: Accept only routing header type 2.
+ < 0: Do not accept routing header.
+
+ Default: 0
+
autoconf - BOOLEAN
Autoconfigure addresses using Prefix Information in Router
Advertisements.
Default: 1
bridge-nf-filter-vlan-tagged - BOOLEAN
- 1 : pass bridged vlan-tagged ARP/IP traffic to arptables/iptables.
+ 1 : pass bridged vlan-tagged ARP/IP/IPv6 traffic to {arp,ip,ip6}tables.
+ 0 : disable this.
+ Default: 1
+
+bridge-nf-filter-pppoe-tagged - BOOLEAN
+ 1 : pass bridged pppoe-tagged IP/IPv6 traffic to {ip,ip6}tables.
0 : disable this.
Default: 1
--- /dev/null
+ ======================
+ RxRPC NETWORK PROTOCOL
+ ======================
+
+The RxRPC protocol driver provides a reliable two-phase transport on top of UDP
+that can be used to perform RxRPC remote operations. This is done over sockets
+of AF_RXRPC family, using sendmsg() and recvmsg() with control data to send and
+receive data, aborts and errors.
+
+Contents of this document:
+
+ (*) Overview.
+
+ (*) RxRPC protocol summary.
+
+ (*) AF_RXRPC driver model.
+
+ (*) Control messages.
+
+ (*) Socket options.
+
+ (*) Security.
+
+ (*) Example client usage.
+
+ (*) Example server usage.
+
+ (*) AF_RXRPC kernel interface.
+
+
+========
+OVERVIEW
+========
+
+RxRPC is a two-layer protocol. There is a session layer which provides
+reliable virtual connections using UDP over IPv4 (or IPv6) as the transport
+layer, but implements a real network protocol; and there's the presentation
+layer which renders structured data to binary blobs and back again using XDR
+(as does SunRPC):
+
+ +-------------+
+ | Application |
+ +-------------+
+ | XDR | Presentation
+ +-------------+
+ | RxRPC | Session
+ +-------------+
+ | UDP | Transport
+ +-------------+
+
+
+AF_RXRPC provides:
+
+ (1) Part of an RxRPC facility for both kernel and userspace applications by
+ making the session part of it a Linux network protocol (AF_RXRPC).
+
+ (2) A two-phase protocol. The client transmits a blob (the request) and then
+ receives a blob (the reply), and the server receives the request and then
+ transmits the reply.
+
+ (3) Retention of the reusable bits of the transport system set up for one call
+ to speed up subsequent calls.
+
+ (4) A secure protocol, using the Linux kernel's key retention facility to
+ manage security on the client end. The server end must of necessity be
+ more active in security negotiations.
+
+AF_RXRPC does not provide XDR marshalling/presentation facilities. That is
+left to the application. AF_RXRPC only deals in blobs. Even the operation ID
+is just the first four bytes of the request blob, and as such is beyond the
+kernel's interest.
+
+
+Sockets of AF_RXRPC family are:
+
+ (1) created as type SOCK_DGRAM;
+
+ (2) provided with a protocol of the type of underlying transport they're going
+ to use - currently only PF_INET is supported.
+
+
+The Andrew File System (AFS) is an example of an application that uses this and
+that has both kernel (filesystem) and userspace (utility) components.
+
+
+======================
+RXRPC PROTOCOL SUMMARY
+======================
+
+An overview of the RxRPC protocol:
+
+ (*) RxRPC sits on top of another networking protocol (UDP is the only option
+ currently), and uses this to provide network transport. UDP ports, for
+ example, provide transport endpoints.
+
+ (*) RxRPC supports multiple virtual "connections" from any given transport
+ endpoint, thus allowing the endpoints to be shared, even to the same
+ remote endpoint.
+
+ (*) Each connection goes to a particular "service". A connection may not go
+ to multiple services. A service may be considered the RxRPC equivalent of
+ a port number. AF_RXRPC permits multiple services to share an endpoint.
+
+ (*) Client-originating packets are marked, thus a transport endpoint can be
+ shared between client and server connections (connections have a
+ direction).
+
+ (*) Up to a billion connections may be supported concurrently between one
+ local transport endpoint and one service on one remote endpoint. An RxRPC
+ connection is described by seven numbers:
+
+ Local address }
+ Local port } Transport (UDP) address
+ Remote address }
+ Remote port }
+ Direction
+ Connection ID
+ Service ID
+
+ (*) Each RxRPC operation is a "call". A connection may make up to four
+ billion calls, but only up to four calls may be in progress on a
+ connection at any one time.
+
+ (*) Calls are two-phase and asymmetric: the client sends its request data,
+ which the service receives; then the service transmits the reply data
+ which the client receives.
+
+ (*) The data blobs are of indefinite size, the end of a phase is marked with a
+ flag in the packet. The number of packets of data making up one blob may
+ not exceed 4 billion, however, as this would cause the sequence number to
+ wrap.
+
+ (*) The first four bytes of the request data are the service operation ID.
+
+ (*) Security is negotiated on a per-connection basis. The connection is
+ initiated by the first data packet on it arriving. If security is
+ requested, the server then issues a "challenge" and then the client
+ replies with a "response". If the response is successful, the security is
+ set for the lifetime of that connection, and all subsequent calls made
+ upon it use that same security. In the event that the server lets a
+ connection lapse before the client, the security will be renegotiated if
+ the client uses the connection again.
+
+ (*) Calls use ACK packets to handle reliability. Data packets are also
+ explicitly sequenced per call.
+
+ (*) There are two types of positive acknowledgement: hard-ACKs and soft-ACKs.
+ A hard-ACK indicates to the far side that all the data received to a point
+ has been received and processed; a soft-ACK indicates that the data has
+ been received but may yet be discarded and re-requested. The sender may
+ not discard any transmittable packets until they've been hard-ACK'd.
+
+ (*) Reception of a reply data packet implicitly hard-ACK's all the data
+ packets that make up the request.
+
+ (*) An call is complete when the request has been sent, the reply has been
+ received and the final hard-ACK on the last packet of the reply has
+ reached the server.
+
+ (*) An call may be aborted by either end at any time up to its completion.
+
+
+=====================
+AF_RXRPC DRIVER MODEL
+=====================
+
+About the AF_RXRPC driver:
+
+ (*) The AF_RXRPC protocol transparently uses internal sockets of the transport
+ protocol to represent transport endpoints.
+
+ (*) AF_RXRPC sockets map onto RxRPC connection bundles. Actual RxRPC
+ connections are handled transparently. One client socket may be used to
+ make multiple simultaneous calls to the same service. One server socket
+ may handle calls from many clients.
+
+ (*) Additional parallel client connections will be initiated to support extra
+ concurrent calls, up to a tunable limit.
+
+ (*) Each connection is retained for a certain amount of time [tunable] after
+ the last call currently using it has completed in case a new call is made
+ that could reuse it.
+
+ (*) Each internal UDP socket is retained [tunable] for a certain amount of
+ time [tunable] after the last connection using it discarded, in case a new
+ connection is made that could use it.
+
+ (*) A client-side connection is only shared between calls if they have have
+ the same key struct describing their security (and assuming the calls
+ would otherwise share the connection). Non-secured calls would also be
+ able to share connections with each other.
+
+ (*) A server-side connection is shared if the client says it is.
+
+ (*) ACK'ing is handled by the protocol driver automatically, including ping
+ replying.
+
+ (*) SO_KEEPALIVE automatically pings the other side to keep the connection
+ alive [TODO].
+
+ (*) If an ICMP error is received, all calls affected by that error will be
+ aborted with an appropriate network error passed through recvmsg().
+
+
+Interaction with the user of the RxRPC socket:
+
+ (*) A socket is made into a server socket by binding an address with a
+ non-zero service ID.
+
+ (*) In the client, sending a request is achieved with one or more sendmsgs,
+ followed by the reply being received with one or more recvmsgs.
+
+ (*) The first sendmsg for a request to be sent from a client contains a tag to
+ be used in all other sendmsgs or recvmsgs associated with that call. The
+ tag is carried in the control data.
+
+ (*) connect() is used to supply a default destination address for a client
+ socket. This may be overridden by supplying an alternate address to the
+ first sendmsg() of a call (struct msghdr::msg_name).
+
+ (*) If connect() is called on an unbound client, a random local port will
+ bound before the operation takes place.
+
+ (*) A server socket may also be used to make client calls. To do this, the
+ first sendmsg() of the call must specify the target address. The server's
+ transport endpoint is used to send the packets.
+
+ (*) Once the application has received the last message associated with a call,
+ the tag is guaranteed not to be seen again, and so it can be used to pin
+ client resources. A new call can then be initiated with the same tag
+ without fear of interference.
+
+ (*) In the server, a request is received with one or more recvmsgs, then the
+ the reply is transmitted with one or more sendmsgs, and then the final ACK
+ is received with a last recvmsg.
+
+ (*) When sending data for a call, sendmsg is given MSG_MORE if there's more
+ data to come on that call.
+
+ (*) When receiving data for a call, recvmsg flags MSG_MORE if there's more
+ data to come for that call.
+
+ (*) When receiving data or messages for a call, MSG_EOR is flagged by recvmsg
+ to indicate the terminal message for that call.
+
+ (*) A call may be aborted by adding an abort control message to the control
+ data. Issuing an abort terminates the kernel's use of that call's tag.
+ Any messages waiting in the receive queue for that call will be discarded.
+
+ (*) Aborts, busy notifications and challenge packets are delivered by recvmsg,
+ and control data messages will be set to indicate the context. Receiving
+ an abort or a busy message terminates the kernel's use of that call's tag.
+
+ (*) The control data part of the msghdr struct is used for a number of things:
+
+ (*) The tag of the intended or affected call.
+
+ (*) Sending or receiving errors, aborts and busy notifications.
+
+ (*) Notifications of incoming calls.
+
+ (*) Sending debug requests and receiving debug replies [TODO].
+
+ (*) When the kernel has received and set up an incoming call, it sends a
+ message to server application to let it know there's a new call awaiting
+ its acceptance [recvmsg reports a special control message]. The server
+ application then uses sendmsg to assign a tag to the new call. Once that
+ is done, the first part of the request data will be delivered by recvmsg.
+
+ (*) The server application has to provide the server socket with a keyring of
+ secret keys corresponding to the security types it permits. When a secure
+ connection is being set up, the kernel looks up the appropriate secret key
+ in the keyring and then sends a challenge packet to the client and
+ receives a response packet. The kernel then checks the authorisation of
+ the packet and either aborts the connection or sets up the security.
+
+ (*) The name of the key a client will use to secure its communications is
+ nominated by a socket option.
+
+
+Notes on recvmsg:
+
+ (*) If there's a sequence of data messages belonging to a particular call on
+ the receive queue, then recvmsg will keep working through them until:
+
+ (a) it meets the end of that call's received data,
+
+ (b) it meets a non-data message,
+
+ (c) it meets a message belonging to a different call, or
+
+ (d) it fills the user buffer.
+
+ If recvmsg is called in blocking mode, it will keep sleeping, awaiting the
+ reception of further data, until one of the above four conditions is met.
+
+ (2) MSG_PEEK operates similarly, but will return immediately if it has put any
+ data in the buffer rather than sleeping until it can fill the buffer.
+
+ (3) If a data message is only partially consumed in filling a user buffer,
+ then the remainder of that message will be left on the front of the queue
+ for the next taker. MSG_TRUNC will never be flagged.
+
+ (4) If there is more data to be had on a call (it hasn't copied the last byte
+ of the last data message in that phase yet), then MSG_MORE will be
+ flagged.
+
+
+================
+CONTROL MESSAGES
+================
+
+AF_RXRPC makes use of control messages in sendmsg() and recvmsg() to multiplex
+calls, to invoke certain actions and to report certain conditions. These are:
+
+ MESSAGE ID SRT DATA MEANING
+ ======================= === =========== ===============================
+ RXRPC_USER_CALL_ID sr- User ID App's call specifier
+ RXRPC_ABORT srt Abort code Abort code to issue/received
+ RXRPC_ACK -rt n/a Final ACK received
+ RXRPC_NET_ERROR -rt error num Network error on call
+ RXRPC_BUSY -rt n/a Call rejected (server busy)
+ RXRPC_LOCAL_ERROR -rt error num Local error encountered
+ RXRPC_NEW_CALL -r- n/a New call received
+ RXRPC_ACCEPT s-- n/a Accept new call
+
+ (SRT = usable in Sendmsg / delivered by Recvmsg / Terminal message)
+
+ (*) RXRPC_USER_CALL_ID
+
+ This is used to indicate the application's call ID. It's an unsigned long
+ that the app specifies in the client by attaching it to the first data
+ message or in the server by passing it in association with an RXRPC_ACCEPT
+ message. recvmsg() passes it in conjunction with all messages except
+ those of the RXRPC_NEW_CALL message.
+
+ (*) RXRPC_ABORT
+
+ This is can be used by an application to abort a call by passing it to
+ sendmsg, or it can be delivered by recvmsg to indicate a remote abort was
+ received. Either way, it must be associated with an RXRPC_USER_CALL_ID to
+ specify the call affected. If an abort is being sent, then error EBADSLT
+ will be returned if there is no call with that user ID.
+
+ (*) RXRPC_ACK
+
+ This is delivered to a server application to indicate that the final ACK
+ of a call was received from the client. It will be associated with an
+ RXRPC_USER_CALL_ID to indicate the call that's now complete.
+
+ (*) RXRPC_NET_ERROR
+
+ This is delivered to an application to indicate that an ICMP error message
+ was encountered in the process of trying to talk to the peer. An
+ errno-class integer value will be included in the control message data
+ indicating the problem, and an RXRPC_USER_CALL_ID will indicate the call
+ affected.
+
+ (*) RXRPC_BUSY
+
+ This is delivered to a client application to indicate that a call was
+ rejected by the server due to the server being busy. It will be
+ associated with an RXRPC_USER_CALL_ID to indicate the rejected call.
+
+ (*) RXRPC_LOCAL_ERROR
+
+ This is delivered to an application to indicate that a local error was
+ encountered and that a call has been aborted because of it. An
+ errno-class integer value will be included in the control message data
+ indicating the problem, and an RXRPC_USER_CALL_ID will indicate the call
+ affected.
+
+ (*) RXRPC_NEW_CALL
+
+ This is delivered to indicate to a server application that a new call has
+ arrived and is awaiting acceptance. No user ID is associated with this,
+ as a user ID must subsequently be assigned by doing an RXRPC_ACCEPT.
+
+ (*) RXRPC_ACCEPT
+
+ This is used by a server application to attempt to accept a call and
+ assign it a user ID. It should be associated with an RXRPC_USER_CALL_ID
+ to indicate the user ID to be assigned. If there is no call to be
+ accepted (it may have timed out, been aborted, etc.), then sendmsg will
+ return error ENODATA. If the user ID is already in use by another call,
+ then error EBADSLT will be returned.
+
+
+==============
+SOCKET OPTIONS
+==============
+
+AF_RXRPC sockets support a few socket options at the SOL_RXRPC level:
+
+ (*) RXRPC_SECURITY_KEY
+
+ This is used to specify the description of the key to be used. The key is
+ extracted from the calling process's keyrings with request_key() and
+ should be of "rxrpc" type.
+
+ The optval pointer points to the description string, and optlen indicates
+ how long the string is, without the NUL terminator.
+
+ (*) RXRPC_SECURITY_KEYRING
+
+ Similar to above but specifies a keyring of server secret keys to use (key
+ type "keyring"). See the "Security" section.
+
+ (*) RXRPC_EXCLUSIVE_CONNECTION
+
+ This is used to request that new connections should be used for each call
+ made subsequently on this socket. optval should be NULL and optlen 0.
+
+ (*) RXRPC_MIN_SECURITY_LEVEL
+
+ This is used to specify the minimum security level required for calls on
+ this socket. optval must point to an int containing one of the following
+ values:
+
+ (a) RXRPC_SECURITY_PLAIN
+
+ Encrypted checksum only.
+
+ (b) RXRPC_SECURITY_AUTH
+
+ Encrypted checksum plus packet padded and first eight bytes of packet
+ encrypted - which includes the actual packet length.
+
+ (c) RXRPC_SECURITY_ENCRYPTED
+
+ Encrypted checksum plus entire packet padded and encrypted, including
+ actual packet length.
+
+
+========
+SECURITY
+========
+
+Currently, only the kerberos 4 equivalent protocol has been implemented
+(security index 2 - rxkad). This requires the rxkad module to be loaded and,
+on the client, tickets of the appropriate type to be obtained from the AFS
+kaserver or the kerberos server and installed as "rxrpc" type keys. This is
+normally done using the klog program. An example simple klog program can be
+found at:
+
+ http://people.redhat.com/~dhowells/rxrpc/klog.c
+
+The payload provided to add_key() on the client should be of the following
+form:
+
+ struct rxrpc_key_sec2_v1 {
+ uint16_t security_index; /* 2 */
+ uint16_t ticket_length; /* length of ticket[] */
+ uint32_t expiry; /* time at which expires */
+ uint8_t kvno; /* key version number */
+ uint8_t __pad[3];
+ uint8_t session_key[8]; /* DES session key */
+ uint8_t ticket[0]; /* the encrypted ticket */
+ };
+
+Where the ticket blob is just appended to the above structure.
+
+
+For the server, keys of type "rxrpc_s" must be made available to the server.
+They have a description of "<serviceID>:<securityIndex>" (eg: "52:2" for an
+rxkad key for the AFS VL service). When such a key is created, it should be
+given the server's secret key as the instantiation data (see the example
+below).
+
+ add_key("rxrpc_s", "52:2", secret_key, 8, keyring);
+
+A keyring is passed to the server socket by naming it in a sockopt. The server
+socket then looks the server secret keys up in this keyring when secure
+incoming connections are made. This can be seen in an example program that can
+be found at:
+
+ http://people.redhat.com/~dhowells/rxrpc/listen.c
+
+
+====================
+EXAMPLE CLIENT USAGE
+====================
+
+A client would issue an operation by:
+
+ (1) An RxRPC socket is set up by:
+
+ client = socket(AF_RXRPC, SOCK_DGRAM, PF_INET);
+
+ Where the third parameter indicates the protocol family of the transport
+ socket used - usually IPv4 but it can also be IPv6 [TODO].
+
+ (2) A local address can optionally be bound:
+
+ struct sockaddr_rxrpc srx = {
+ .srx_family = AF_RXRPC,
+ .srx_service = 0, /* we're a client */
+ .transport_type = SOCK_DGRAM, /* type of transport socket */
+ .transport.sin_family = AF_INET,
+ .transport.sin_port = htons(7000), /* AFS callback */
+ .transport.sin_address = 0, /* all local interfaces */
+ };
+ bind(client, &srx, sizeof(srx));
+
+ This specifies the local UDP port to be used. If not given, a random
+ non-privileged port will be used. A UDP port may be shared between
+ several unrelated RxRPC sockets. Security is handled on a basis of
+ per-RxRPC virtual connection.
+
+ (3) The security is set:
+
+ const char *key = "AFS:cambridge.redhat.com";
+ setsockopt(client, SOL_RXRPC, RXRPC_SECURITY_KEY, key, strlen(key));
+
+ This issues a request_key() to get the key representing the security
+ context. The minimum security level can be set:
+
+ unsigned int sec = RXRPC_SECURITY_ENCRYPTED;
+ setsockopt(client, SOL_RXRPC, RXRPC_MIN_SECURITY_LEVEL,
+ &sec, sizeof(sec));
+
+ (4) The server to be contacted can then be specified (alternatively this can
+ be done through sendmsg):
+
+ struct sockaddr_rxrpc srx = {
+ .srx_family = AF_RXRPC,
+ .srx_service = VL_SERVICE_ID,
+ .transport_type = SOCK_DGRAM, /* type of transport socket */
+ .transport.sin_family = AF_INET,
+ .transport.sin_port = htons(7005), /* AFS volume manager */
+ .transport.sin_address = ...,
+ };
+ connect(client, &srx, sizeof(srx));
+
+ (5) The request data should then be posted to the server socket using a series
+ of sendmsg() calls, each with the following control message attached:
+
+ RXRPC_USER_CALL_ID - specifies the user ID for this call
+
+ MSG_MORE should be set in msghdr::msg_flags on all but the last part of
+ the request. Multiple requests may be made simultaneously.
+
+ If a call is intended to go to a destination other then the default
+ specified through connect(), then msghdr::msg_name should be set on the
+ first request message of that call.
+
+ (6) The reply data will then be posted to the server socket for recvmsg() to
+ pick up. MSG_MORE will be flagged by recvmsg() if there's more reply data
+ for a particular call to be read. MSG_EOR will be set on the terminal
+ read for a call.
+
+ All data will be delivered with the following control message attached:
+
+ RXRPC_USER_CALL_ID - specifies the user ID for this call
+
+ If an abort or error occurred, this will be returned in the control data
+ buffer instead, and MSG_EOR will be flagged to indicate the end of that
+ call.
+
+
+====================
+EXAMPLE SERVER USAGE
+====================
+
+A server would be set up to accept operations in the following manner:
+
+ (1) An RxRPC socket is created by:
+
+ server = socket(AF_RXRPC, SOCK_DGRAM, PF_INET);
+
+ Where the third parameter indicates the address type of the transport
+ socket used - usually IPv4.
+
+ (2) Security is set up if desired by giving the socket a keyring with server
+ secret keys in it:
+
+ keyring = add_key("keyring", "AFSkeys", NULL, 0,
+ KEY_SPEC_PROCESS_KEYRING);
+
+ const char secret_key[8] = {
+ 0xa7, 0x83, 0x8a, 0xcb, 0xc7, 0x83, 0xec, 0x94 };
+ add_key("rxrpc_s", "52:2", secret_key, 8, keyring);
+
+ setsockopt(server, SOL_RXRPC, RXRPC_SECURITY_KEYRING, "AFSkeys", 7);
+
+ The keyring can be manipulated after it has been given to the socket. This
+ permits the server to add more keys, replace keys, etc. whilst it is live.
+
+ (2) A local address must then be bound:
+
+ struct sockaddr_rxrpc srx = {
+ .srx_family = AF_RXRPC,
+ .srx_service = VL_SERVICE_ID, /* RxRPC service ID */
+ .transport_type = SOCK_DGRAM, /* type of transport socket */
+ .transport.sin_family = AF_INET,
+ .transport.sin_port = htons(7000), /* AFS callback */
+ .transport.sin_address = 0, /* all local interfaces */
+ };
+ bind(server, &srx, sizeof(srx));
+
+ (3) The server is then set to listen out for incoming calls:
+
+ listen(server, 100);
+
+ (4) The kernel notifies the server of pending incoming connections by sending
+ it a message for each. This is received with recvmsg() on the server
+ socket. It has no data, and has a single dataless control message
+ attached:
+
+ RXRPC_NEW_CALL
+
+ The address that can be passed back by recvmsg() at this point should be
+ ignored since the call for which the message was posted may have gone by
+ the time it is accepted - in which case the first call still on the queue
+ will be accepted.
+
+ (5) The server then accepts the new call by issuing a sendmsg() with two
+ pieces of control data and no actual data:
+
+ RXRPC_ACCEPT - indicate connection acceptance
+ RXRPC_USER_CALL_ID - specify user ID for this call
+
+ (6) The first request data packet will then be posted to the server socket for
+ recvmsg() to pick up. At that point, the RxRPC address for the call can
+ be read from the address fields in the msghdr struct.
+
+ Subsequent request data will be posted to the server socket for recvmsg()
+ to collect as it arrives. All but the last piece of the request data will
+ be delivered with MSG_MORE flagged.
+
+ All data will be delivered with the following control message attached:
+
+ RXRPC_USER_CALL_ID - specifies the user ID for this call
+
+ (8) The reply data should then be posted to the server socket using a series
+ of sendmsg() calls, each with the following control messages attached:
+
+ RXRPC_USER_CALL_ID - specifies the user ID for this call
+
+ MSG_MORE should be set in msghdr::msg_flags on all but the last message
+ for a particular call.
+
+ (9) The final ACK from the client will be posted for retrieval by recvmsg()
+ when it is received. It will take the form of a dataless message with two
+ control messages attached:
+
+ RXRPC_USER_CALL_ID - specifies the user ID for this call
+ RXRPC_ACK - indicates final ACK (no data)
+
+ MSG_EOR will be flagged to indicate that this is the final message for
+ this call.
+
+(10) Up to the point the final packet of reply data is sent, the call can be
+ aborted by calling sendmsg() with a dataless message with the following
+ control messages attached:
+
+ RXRPC_USER_CALL_ID - specifies the user ID for this call
+ RXRPC_ABORT - indicates abort code (4 byte data)
+
+ Any packets waiting in the socket's receive queue will be discarded if
+ this is issued.
+
+Note that all the communications for a particular service take place through
+the one server socket, using control messages on sendmsg() and recvmsg() to
+determine the call affected.
+
+
+=========================
+AF_RXRPC KERNEL INTERFACE
+=========================
+
+The AF_RXRPC module also provides an interface for use by in-kernel utilities
+such as the AFS filesystem. This permits such a utility to:
+
+ (1) Use different keys directly on individual client calls on one socket
+ rather than having to open a whole slew of sockets, one for each key it
+ might want to use.
+
+ (2) Avoid having RxRPC call request_key() at the point of issue of a call or
+ opening of a socket. Instead the utility is responsible for requesting a
+ key at the appropriate point. AFS, for instance, would do this during VFS
+ operations such as open() or unlink(). The key is then handed through
+ when the call is initiated.
+
+ (3) Request the use of something other than GFP_KERNEL to allocate memory.
+
+ (4) Avoid the overhead of using the recvmsg() call. RxRPC messages can be
+ intercepted before they get put into the socket Rx queue and the socket
+ buffers manipulated directly.
+
+To use the RxRPC facility, a kernel utility must still open an AF_RXRPC socket,
+bind an addess as appropriate and listen if it's to be a server socket, but
+then it passes this to the kernel interface functions.
+
+The kernel interface functions are as follows:
+
+ (*) Begin a new client call.
+
+ struct rxrpc_call *
+ rxrpc_kernel_begin_call(struct socket *sock,
+ struct sockaddr_rxrpc *srx,
+ struct key *key,
+ unsigned long user_call_ID,
+ gfp_t gfp);
+
+ This allocates the infrastructure to make a new RxRPC call and assigns
+ call and connection numbers. The call will be made on the UDP port that
+ the socket is bound to. The call will go to the destination address of a
+ connected client socket unless an alternative is supplied (srx is
+ non-NULL).
+
+ If a key is supplied then this will be used to secure the call instead of
+ the key bound to the socket with the RXRPC_SECURITY_KEY sockopt. Calls
+ secured in this way will still share connections if at all possible.
+
+ The user_call_ID is equivalent to that supplied to sendmsg() in the
+ control data buffer. It is entirely feasible to use this to point to a
+ kernel data structure.
+
+ If this function is successful, an opaque reference to the RxRPC call is
+ returned. The caller now holds a reference on this and it must be
+ properly ended.
+
+ (*) End a client call.
+
+ void rxrpc_kernel_end_call(struct rxrpc_call *call);
+
+ This is used to end a previously begun call. The user_call_ID is expunged
+ from AF_RXRPC's knowledge and will not be seen again in association with
+ the specified call.
+
+ (*) Send data through a call.
+
+ int rxrpc_kernel_send_data(struct rxrpc_call *call, struct msghdr *msg,
+ size_t len);
+
+ This is used to supply either the request part of a client call or the
+ reply part of a server call. msg.msg_iovlen and msg.msg_iov specify the
+ data buffers to be used. msg_iov may not be NULL and must point
+ exclusively to in-kernel virtual addresses. msg.msg_flags may be given
+ MSG_MORE if there will be subsequent data sends for this call.
+
+ The msg must not specify a destination address, control data or any flags
+ other than MSG_MORE. len is the total amount of data to transmit.
+
+ (*) Abort a call.
+
+ void rxrpc_kernel_abort_call(struct rxrpc_call *call, u32 abort_code);
+
+ This is used to abort a call if it's still in an abortable state. The
+ abort code specified will be placed in the ABORT message sent.
+
+ (*) Intercept received RxRPC messages.
+
+ typedef void (*rxrpc_interceptor_t)(struct sock *sk,
+ unsigned long user_call_ID,
+ struct sk_buff *skb);
+
+ void
+ rxrpc_kernel_intercept_rx_messages(struct socket *sock,
+ rxrpc_interceptor_t interceptor);
+
+ This installs an interceptor function on the specified AF_RXRPC socket.
+ All messages that would otherwise wind up in the socket's Rx queue are
+ then diverted to this function. Note that care must be taken to process
+ the messages in the right order to maintain DATA message sequentiality.
+
+ The interceptor function itself is provided with the address of the socket
+ and handling the incoming message, the ID assigned by the kernel utility
+ to the call and the socket buffer containing the message.
+
+ The skb->mark field indicates the type of message:
+
+ MARK MEANING
+ =============================== =======================================
+ RXRPC_SKB_MARK_DATA Data message
+ RXRPC_SKB_MARK_FINAL_ACK Final ACK received for an incoming call
+ RXRPC_SKB_MARK_BUSY Client call rejected as server busy
+ RXRPC_SKB_MARK_REMOTE_ABORT Call aborted by peer
+ RXRPC_SKB_MARK_NET_ERROR Network error detected
+ RXRPC_SKB_MARK_LOCAL_ERROR Local error encountered
+ RXRPC_SKB_MARK_NEW_CALL New incoming call awaiting acceptance
+
+ The remote abort message can be probed with rxrpc_kernel_get_abort_code().
+ The two error messages can be probed with rxrpc_kernel_get_error_number().
+ A new call can be accepted with rxrpc_kernel_accept_call().
+
+ Data messages can have their contents extracted with the usual bunch of
+ socket buffer manipulation functions. A data message can be determined to
+ be the last one in a sequence with rxrpc_kernel_is_data_last(). When a
+ data message has been used up, rxrpc_kernel_data_delivered() should be
+ called on it..
+
+ Non-data messages should be handled to rxrpc_kernel_free_skb() to dispose
+ of. It is possible to get extra refs on all types of message for later
+ freeing, but this may pin the state of a call until the message is finally
+ freed.
+
+ (*) Accept an incoming call.
+
+ struct rxrpc_call *
+ rxrpc_kernel_accept_call(struct socket *sock,
+ unsigned long user_call_ID);
+
+ This is used to accept an incoming call and to assign it a call ID. This
+ function is similar to rxrpc_kernel_begin_call() and calls accepted must
+ be ended in the same way.
+
+ If this function is successful, an opaque reference to the RxRPC call is
+ returned. The caller now holds a reference on this and it must be
+ properly ended.
+
+ (*) Reject an incoming call.
+
+ int rxrpc_kernel_reject_call(struct socket *sock);
+
+ This is used to reject the first incoming call on the socket's queue with
+ a BUSY message. -ENODATA is returned if there were no incoming calls.
+ Other errors may be returned if the call had been aborted (-ECONNABORTED)
+ or had timed out (-ETIME).
+
+ (*) Record the delivery of a data message and free it.
+
+ void rxrpc_kernel_data_delivered(struct sk_buff *skb);
+
+ This is used to record a data message as having been delivered and to
+ update the ACK state for the call. The socket buffer will be freed.
+
+ (*) Free a message.
+
+ void rxrpc_kernel_free_skb(struct sk_buff *skb);
+
+ This is used to free a non-DATA socket buffer intercepted from an AF_RXRPC
+ socket.
+
+ (*) Determine if a data message is the last one on a call.
+
+ bool rxrpc_kernel_is_data_last(struct sk_buff *skb);
+
+ This is used to determine if a socket buffer holds the last data message
+ to be received for a call (true will be returned if it does, false
+ if not).
+
+ The data message will be part of the reply on a client call and the
+ request on an incoming call. In the latter case there will be more
+ messages, but in the former case there will not.
+
+ (*) Get the abort code from an abort message.
+
+ u32 rxrpc_kernel_get_abort_code(struct sk_buff *skb);
+
+ This is used to extract the abort code from a remote abort message.
+
+ (*) Get the error number from a local or network error message.
+
+ int rxrpc_kernel_get_error_number(struct sk_buff *skb);
+
+ This is used to extract the error number from a message indicating either
+ a local error occurred or a network error occurred.
sdladrv.h SDLA support module API definitions
sdlasfm.h SDLA firmware module definitions
if_wanpipe.h WANPIPE Socket definitions
- if_wanpipe_common.h WANPIPE Socket/Driver common definitions.
sdlapci.h WANPIPE PCI definitions
+++ /dev/null
-crypto-API support for z990 Message Security Assist (MSA) instructions
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-AUTHOR: Thomas Spatzier (tspat@de.ibm.com)
-
-
-1. Introduction crypto-API
-~~~~~~~~~~~~~~~~~~~~~~~~~~
-See Documentation/crypto/api-intro.txt for an introduction/description of the
-kernel crypto API.
-According to api-intro.txt support for z990 crypto instructions has been added
-in the algorithm api layer of the crypto API. Several files containing z990
-optimized implementations of crypto algorithms are placed in the
-arch/s390/crypto directory.
-
-
-2. Probing for availability of MSA
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-It should be possible to use Kernels with the z990 crypto implementations both
-on machines with MSA available and on those without MSA (pre z990 or z990
-without MSA). Therefore a simple probing mechanism has been implemented:
-In the init function of each crypto module the availability of MSA and of the
-respective crypto algorithm in particular will be tested. If the algorithm is
-available the module will load and register its algorithm with the crypto API.
-
-If the respective crypto algorithm is not available, the init function will
-return -ENOSYS. In that case a fallback to the standard software implementation
-of the crypto algorithm must be taken ( -> the standard crypto modules are
-also built when compiling the kernel).
-
-
-3. Ensuring z990 crypto module preference
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-If z990 crypto instructions are available the optimized modules should be
-preferred instead of standard modules.
-
-3.1. compiled-in modules
-~~~~~~~~~~~~~~~~~~~~~~~~
-For compiled-in modules it has to be ensured that the z990 modules are linked
-before the standard crypto modules. Then, on system startup the init functions
-of z990 crypto modules will be called first and query for availability of z990
-crypto instructions. If instruction is available, the z990 module will register
-its crypto algorithm implementation -> the load of the standard module will fail
-since the algorithm is already registered.
-If z990 crypto instruction is not available the load of the z990 module will
-fail -> the standard module will load and register its algorithm.
-
-3.2. dynamic modules
-~~~~~~~~~~~~~~~~~~~~
-A system administrator has to take care of giving preference to z990 crypto
-modules. If MSA is available appropriate lines have to be added to
-/etc/modprobe.conf.
-
-Example: z990 crypto instruction for SHA1 algorithm is available
-
- add the following line to /etc/modprobe.conf (assuming the
- z990 crypto modules for SHA1 is called sha1_z990):
-
- alias sha1 sha1_z990
-
- -> when the sha1 algorithm is requested through the crypto API
- (which has a module autoloader) the z990 module will be loaded.
-
-TBD: a userspace module probing mechanism
- something like 'probe sha1 sha1_z990 sha1' in modprobe.conf
- -> try module sha1_z990, if it fails to load standard module sha1
- the 'probe' statement is currently not supported in modprobe.conf
-
-
-4. Currently implemented z990 crypto algorithms
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The following crypto algorithms with z990 MSA support are currently implemented.
-The name of each algorithm under which it is registered in crypto API and the
-name of the respective module is given in square brackets.
-
-- SHA1 Digest Algorithm [sha1 -> sha1_z990]
-- DES Encrypt/Decrypt Algorithm (64bit key) [des -> des_z990]
-- Triple DES Encrypt/Decrypt Algorithm (128bit key) [des3_ede128 -> des_z990]
-- Triple DES Encrypt/Decrypt Algorithm (192bit key) [des3_ede -> des_z990]
-
-In order to load, for example, the sha1_z990 module when the sha1 algorithm is
-requested (see 3.2.) add 'alias sha1 sha1_z990' to /etc/modprobe.conf.
-
--- /dev/null
+s390 SCSI dump tool (zfcpdump)
+
+System z machines (z900 or higher) provide hardware support for creating system
+dumps on SCSI disks. The dump process is initiated by booting a dump tool, which
+has to create a dump of the current (probably crashed) Linux image. In order to
+not overwrite memory of the crashed Linux with data of the dump tool, the
+hardware saves some memory plus the register sets of the boot cpu before the
+dump tool is loaded. There exists an SCLP hardware interface to obtain the saved
+memory afterwards. Currently 32 MB are saved.
+
+This zfcpdump implementation consists of a Linux dump kernel together with
+a userspace dump tool, which are loaded together into the saved memory region
+below 32 MB. zfcpdump is installed on a SCSI disk using zipl (as contained in
+the s390-tools package) to make the device bootable. The operator of a Linux
+system can then trigger a SCSI dump by booting the SCSI disk, where zfcpdump
+resides on.
+
+The kernel part of zfcpdump is implemented as a debugfs file under "zcore/mem",
+which exports memory and registers of the crashed Linux in an s390
+standalone dump format. It can be used in the same way as e.g. /dev/mem. The
+dump format defines a 4K header followed by plain uncompressed memory. The
+register sets are stored in the prefix pages of the respective cpus. To build a
+dump enabled kernel with the zcore driver, the kernel config option
+CONFIG_ZFCPDUMP has to be set. When reading from "zcore/mem", the part of
+memory, which has been saved by hardware is read by the driver via the SCLP
+hardware interface. The second part is just copied from the non overwritten real
+memory.
+
+The userspace application of zfcpdump can reside e.g. in an intitramfs or an
+initrd. It reads from zcore/mem and writes the system dump to a file on a
+SCSI disk.
+
+To build a zfcpdump kernel use the following settings in your kernel
+configuration:
+ * CONFIG_ZFCPDUMP=y
+ * Enable ZFCP driver
+ * Enable SCSI driver
+ * Enable ext2 and ext3 filesystems
+ * Disable as many features as possible to keep the kernel small.
+ E.g. network support is not needed at all.
+
+To use the zfcpdump userspace application in an initramfs you have to do the
+following:
+
+ * Copy the zfcpdump executable somewhere into your Linux tree.
+ E.g. to "arch/s390/boot/zfcpdump. If you do not want to include
+ shared libraries, compile the tool with the "-static" gcc option.
+ * If you want to include e2fsck, add it to your source tree, too. The zfcpdump
+ application attempts to start /sbin/e2fsck from the ramdisk.
+ * Use an initramfs config file like the following:
+
+ dir /dev 755 0 0
+ nod /dev/console 644 0 0 c 5 1
+ nod /dev/null 644 0 0 c 1 3
+ nod /dev/sda1 644 0 0 b 8 1
+ nod /dev/sda2 644 0 0 b 8 2
+ nod /dev/sda3 644 0 0 b 8 3
+ nod /dev/sda4 644 0 0 b 8 4
+ nod /dev/sda5 644 0 0 b 8 5
+ nod /dev/sda6 644 0 0 b 8 6
+ nod /dev/sda7 644 0 0 b 8 7
+ nod /dev/sda8 644 0 0 b 8 8
+ nod /dev/sda9 644 0 0 b 8 9
+ nod /dev/sda10 644 0 0 b 8 10
+ nod /dev/sda11 644 0 0 b 8 11
+ nod /dev/sda12 644 0 0 b 8 12
+ nod /dev/sda13 644 0 0 b 8 13
+ nod /dev/sda14 644 0 0 b 8 14
+ nod /dev/sda15 644 0 0 b 8 15
+ file /init arch/s390/boot/zfcpdump 755 0 0
+ file /sbin/e2fsck arch/s390/boot/e2fsck 755 0 0
+ dir /proc 755 0 0
+ dir /sys 755 0 0
+ dir /mnt 755 0 0
+ dir /sbin 755 0 0
+
+ * Issue "make image" to build the zfcpdump image with initramfs.
+
+In a Linux distribution the zfcpdump enabled kernel image must be copied to
+/usr/share/zfcpdump/zfcpdump.image, where the s390 zipl tool is looking for the
+dump kernel when preparing a SCSI dump disk.
+
+If you use a ramdisk copy it to "/usr/share/zfcpdump/zfcpdump.rd".
+
+For more information on how to use zfcpdump refer to the s390 'Using the Dump
+Tools book', which is available from
+http://www.ibm.com/developerworks/linux/linux390.
stuck (default)
Miscellaneous
-
- noreplacement Don't replace instructions with more appropriate ones
- for the CPU. This may be useful on asymmetric MP systems
- where some CPUs have less capabilities than others.
APPLETALK NETWORK LAYER
P: Arnaldo Carvalho de Melo
-M: acme@conectiva.com.br
+M: acme@ghostprotocols.net
S: Maintained
ARC FRAMEBUFFER DRIVER
ATMEL WIRELESS DRIVER
P: Simon Kelley
M: simon@thekelleys.org.uk
+L: linux-wireless@vger.kernel.org
W: http://www.thekelleys.org.uk/atmel
W: http://atmelwlandriver.sourceforge.net/
S: Maintained
M: Larry.Finger@lwfinger.net
P: Stefano Brivio
M: st3@riseup.net
+L: linux-wireless@vger.kernel.org
W: http://bcm43xx.berlios.de/
S: Maintained
L: linux-kernel@vger.kernel.org
S: Maintained
+CFG80211 and NL80211
+P: Johannes Berg
+M: johannes@sipsolutions.net
+L: linux-wireless@vger.kernel.org
+S: Maintained
+
COMMON INTERNET FILE SYSTEM (CIFS)
P: Steve French
M: sfrench@samba.org
CYCLADES 2X SYNC CARD DRIVER
P: Arnaldo Carvalho de Melo
-M: acme@conectiva.com.br
-W: http://advogato.org/person/acme
-L: cycsyn-devel@bazar.conectiva.com.br
+M: acme@ghostprotocols.net
+W: http://oops.ghostprotocols.net:81/blog
S: Maintained
CYCLADES ASYNC MUX DRIVER
DCCP PROTOCOL
P: Arnaldo Carvalho de Melo
-M: acme@mandriva.com
+M: acme@ghostprotocols.net
L: dccp@vger.kernel.org
W: http://linux-net.osdl.org/index.php/DCCP
S: Maintained
ETHERNET BRIDGE
P: Stephen Hemminger
M: shemminger@linux-foundation.org
-L: bridge@lists.osdl.org
+L: bridge@lists.linux-foundation.org
W: http://bridge.sourceforge.net/
S: Maintained
W: http://www.farsite.co.uk/
S: Supported
+FAULT INJECTION SUPPORT
+P: Akinobu Mita
+M: akinobu.mita@gmail.com
+S: Supported
+
FRAMEBUFFER LAYER
P: Antonino Daplas
M: adaplas@gmail.com
HOST AP DRIVER
P: Jouni Malinen
M: jkmaline@cc.hut.fi
+L: linux-wireless@vger.kernel.org
L: hostap@shmoo.com
W: http://hostap.epitest.fi/
S: Maintained
IEEE 1394 SUBSYSTEM
P: Ben Collins
-M: bcollins@debian.org
+M: ben.collins@ubuntu.com
P: Stefan Richter
M: stefanr@s5r6.in-berlin.de
L: linux1394-devel@lists.sourceforge.net
T: git kernel.org:/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
S: Maintained
-IEEE 1394 IPV4 DRIVER (eth1394)
-P: Stefan Richter
-M: stefanr@s5r6.in-berlin.de
-L: linux1394-devel@lists.sourceforge.net
-S: Odd Fixes
-
-IEEE 1394 PCILYNX DRIVER
-P: Jody McIntyre
-M: scjody@modernduck.com
-P: Stefan Richter
-M: stefanr@s5r6.in-berlin.de
-L: linux1394-devel@lists.sourceforge.net
-S: Odd Fixes
-
-IEEE 1394 RAW I/O DRIVER
-P: Ben Collins
-M: bcollins@debian.org
+IEEE 1394 RAW I/O DRIVER (raw1394)
P: Dan Dennedy
M: dan@dennedy.org
+P: Stefan Richter
+M: stefanr@s5r6.in-berlin.de
L: linux1394-devel@lists.sourceforge.net
S: Maintained
M: yi.zhu@intel.com
P: James Ketrenos
M: jketreno@linux.intel.com
+L: linux-wireless@vger.kernel.org
L: ipw2100-devel@lists.sourceforge.net
L: http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
W: http://ipw2100.sourceforge.net
M: yi.zhu@intel.com
P: James Ketrenos
M: jketreno@linux.intel.com
+L: linux-wireless@vger.kernel.org
L: ipw2100-devel@lists.sourceforge.net
L: http://lists.sourceforge.net/mailman/listinfo/ipw2100-devel
W: http://ipw2200.sourceforge.net
IPX NETWORK LAYER
P: Arnaldo Carvalho de Melo
-M: acme@conectiva.com.br
+M: acme@ghostprotocols.net
L: netdev@vger.kernel.org
S: Maintained
M: vgoyal@in.ibm.com
P: Haren Myneni
M: hbabu@us.ibm.com
-L: fastboot@lists.osdl.org
+L: fastboot@lists.linux-foundation.org
L: linux-kernel@vger.kernel.org
W: http://lse.sourceforge.net/kdump/
S: Maintained
KERNEL JANITORS
P: Several
-L: kernel-janitors@lists.osdl.org
+L: kernel-janitors@lists.linux-foundation.org
W: http://www.kerneljanitors.org/
S: Maintained
M: ebiederm@xmission.com
W: http://www.xmission.com/~ebiederm/files/kexec/
L: linux-kernel@vger.kernel.org
-L: fastboot@lists.osdl.org
+L: fastboot@lists.linux-foundation.org
S: Maintained
KPROBES
LLC (802.2)
P: Arnaldo Carvalho de Melo
-M: acme@conectiva.com.br
+M: acme@ghostprotocols.net
S: Maintained
LINUX FOR 64BIT POWERPC
NETEM NETWORK EMULATOR
P: Stephen Hemminger
M: shemminger@linux-foundation.org
-L: netem@lists.osdl.org
+L: netem@lists.linux-foundation.org
S: Maintained
NETFILTER/IPTABLES/IPCHAINS
M: proski@gnu.org
P: David Gibson
M: hermes@gibson.dropbear.id.au
+L: linux-wireless@vger.kernel.org
L: orinoco-users@lists.sourceforge.net
L: orinoco-devel@lists.sourceforge.net
W: http://www.nongnu.org/orinoco/
PRISM54 WIRELESS DRIVER
P: Prism54 Development Team
M: developers@islsm.org
-L: netdev@vger.kernel.org
+L: linux-wireless@vger.kernel.org
W: http://prism54.org
S: Maintained
RAYLINK/WEBGEAR 802.11 WIRELESS LAN DRIVER
P: Corey Thomas
M: corey@world.std.com
-L: linux-kernel@vger.kernel.org
+L: linux-wireless@vger.kernel.org
S: Maintained
RANDOM NUMBER DRIVER
P: Daniel Drake
M: dsd@gentoo.org
W: http://softmac.sipsolutions.net/
-L: netdev@vger.kernel.org
+L: linux-wireless@vger.kernel.org
S: Maintained
SOFTWARE RAID (Multiple Disks) SUPPORT
SOFTWARE SUSPEND:
P: Pavel Machek
M: pavel@suse.cz
-L: linux-pm@lists.osdl.org
+L: linux-pm@lists.linux-foundation.org
S: Maintained
SONIC NETWORK DRIVER
WAVELAN NETWORK DRIVER & WIRELESS EXTENSIONS
P: Jean Tourrilhes
M: jt@hpl.hp.com
+L: linux-wireless@vger.kernel.org
W: http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/
S: Maintained
WL3501 WIRELESS PCMCIA CARD DRIVER
P: Arnaldo Carvalho de Melo
-M: acme@conectiva.com.br
-W: http://advogato.org/person/acme
+M: acme@ghostprotocols.net
+L: linux-wireless@vger.kernel.org
+W: http://oops.ghostprotocols.net:81/blog
S: Maintained
X.25 NETWORK LAYER
P: Ulrich Kunitz
M: kune@deine-taler.de
W: http://zd1211.ath.cx/wiki/DriverRewrite
+L: linux-wireless@vger.kernel.org
L: zd1211-devs@lists.sourceforge.net (subscribers-only)
S: Maintained
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 21
-EXTRAVERSION = -rc7
+EXTRAVERSION =
NAME = Nocturnal Monster Puppy
# *DOCUMENTATION*
$(ev6-y)csum_ipv6_magic.o \
$(ev6-y)clear_page.o \
$(ev6-y)copy_page.o \
- strcasecmp.o \
fpreg.o \
callback_srm.o srm_puts.o srm_printk.o
+++ /dev/null
-/*
- * linux/arch/alpha/lib/strcasecmp.c
- */
-
-#include <linux/string.h>
-
-
-/* We handle nothing here except the C locale. Since this is used in
- only one place, on strings known to contain only 7 bit ASCII, this
- is ok. */
-
-int strcasecmp(const char *a, const char *b)
-{
- int ca, cb;
-
- do {
- ca = *a++ & 0xff;
- cb = *b++ & 0xff;
- if (ca >= 'A' && ca <= 'Z')
- ca += 'a' - 'A';
- if (cb >= 'A' && cb <= 'Z')
- cb += 'a' - 'A';
- } while (ca == cb && ca != '\0');
-
- return ca - cb;
-}
bool
default n
-config GENERIC_BUST_SPINLOCK
- bool
-
config GENERIC_HWEIGHT
bool
default y
bool
default y
+config GENERIC_BUG
+ bool
+ default y
+ depends on BUG
+
source "init/Kconfig"
menu "System Type and features"
config BOARD_ATSTK1000
bool "ATSTK1000 evaluation board"
select BOARD_ATSTK1002 if CPU_AT32AP7000
+
+config BOARD_ATNGW100
+ bool "ATNGW100 Network Gateway"
endchoice
choice
bool "U-Boot (or similar) bootloader"
endchoice
+source "arch/avr32/mach-at32ap/Kconfig"
+
config LOAD_ADDRESS
hex
default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
head-y += arch/avr32/kernel/head.o
core-$(CONFIG_PLATFORM_AT32AP) += arch/avr32/mach-at32ap/
core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
+core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/
core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/
core-y += arch/avr32/kernel/
core-y += arch/avr32/mm/
--- /dev/null
+obj-y += setup.o flash.o
--- /dev/null
+/*
+ * ATNGW100 board-specific flash initialization
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/arch/smc.h>
+
+static struct smc_config flash_config __initdata = {
+ .ncs_read_setup = 0,
+ .nrd_setup = 40,
+ .ncs_write_setup = 0,
+ .nwe_setup = 10,
+
+ .ncs_read_pulse = 80,
+ .nrd_pulse = 40,
+ .ncs_write_pulse = 65,
+ .nwe_pulse = 55,
+
+ .read_cycle = 120,
+ .write_cycle = 120,
+
+ .bus_width = 2,
+ .nrd_controlled = 1,
+ .nwe_controlled = 1,
+ .byte_write = 1,
+};
+
+static struct mtd_partition flash_parts[] = {
+ {
+ .name = "u-boot",
+ .offset = 0x00000000,
+ .size = 0x00020000, /* 128 KiB */
+ .mask_flags = MTD_WRITEABLE,
+ },
+ {
+ .name = "root",
+ .offset = 0x00020000,
+ .size = 0x007d0000,
+ },
+ {
+ .name = "env",
+ .offset = 0x007f0000,
+ .size = 0x00010000,
+ .mask_flags = MTD_WRITEABLE,
+ },
+};
+
+static struct physmap_flash_data flash_data = {
+ .width = 2,
+ .nr_parts = ARRAY_SIZE(flash_parts),
+ .parts = flash_parts,
+};
+
+static struct resource flash_resource = {
+ .start = 0x00000000,
+ .end = 0x007fffff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+ .name = "physmap-flash",
+ .id = 0,
+ .resource = &flash_resource,
+ .num_resources = 1,
+ .dev = {
+ .platform_data = &flash_data,
+ },
+};
+
+/* This needs to be called after the SMC has been initialized */
+static int __init atngw100_flash_init(void)
+{
+ int ret;
+
+ ret = smc_set_configuration(0, &flash_config);
+ if (ret < 0) {
+ printk(KERN_ERR "atngw100: failed to set NOR flash timing\n");
+ return ret;
+ }
+
+ platform_device_register(&flash_device);
+
+ return 0;
+}
+device_initcall(atngw100_flash_init);
--- /dev/null
+/*
+ * Board-specific setup code for the ATNGW100 Network Gateway
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/spi/spi.h>
+
+#include <asm/io.h>
+#include <asm/setup.h>
+
+#include <asm/arch/at32ap7000.h>
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+
+/* Initialized by bootloader-specific startup code. */
+struct tag *bootloader_tags __initdata;
+
+struct eth_addr {
+ u8 addr[6];
+};
+static struct eth_addr __initdata hw_addr[2];
+static struct eth_platform_data __initdata eth_data[2];
+
+static struct spi_board_info spi0_board_info[] __initdata = {
+ {
+ .modalias = "mtd_dataflash",
+ .max_speed_hz = 10000000,
+ .chip_select = 0,
+ },
+};
+
+/*
+ * The next two functions should go away as the boot loader is
+ * supposed to initialize the macb address registers with a valid
+ * ethernet address. But we need to keep it around for a while until
+ * we can be reasonably sure the boot loader does this.
+ *
+ * The phy_id is ignored as the driver will probe for it.
+ */
+static int __init parse_tag_ethernet(struct tag *tag)
+{
+ int i;
+
+ i = tag->u.ethernet.mac_index;
+ if (i < ARRAY_SIZE(hw_addr))
+ memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
+ sizeof(hw_addr[i].addr));
+
+ return 0;
+}
+__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
+
+static void __init set_hw_addr(struct platform_device *pdev)
+{
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ const u8 *addr;
+ void __iomem *regs;
+ struct clk *pclk;
+
+ if (!res)
+ return;
+ if (pdev->id >= ARRAY_SIZE(hw_addr))
+ return;
+
+ addr = hw_addr[pdev->id].addr;
+ if (!is_valid_ether_addr(addr))
+ return;
+
+ /*
+ * Since this is board-specific code, we'll cheat and use the
+ * physical address directly as we happen to know that it's
+ * the same as the virtual address.
+ */
+ regs = (void __iomem __force *)res->start;
+ pclk = clk_get(&pdev->dev, "pclk");
+ if (!pclk)
+ return;
+
+ clk_enable(pclk);
+ __raw_writel((addr[3] << 24) | (addr[2] << 16)
+ | (addr[1] << 8) | addr[0], regs + 0x98);
+ __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
+ clk_disable(pclk);
+ clk_put(pclk);
+}
+
+struct platform_device *at32_usart_map[1];
+unsigned int at32_nr_usarts = 1;
+
+void __init setup_board(void)
+{
+ at32_map_usart(1, 0); /* USART 1: /dev/ttyS0, DB9 */
+ at32_setup_serial_console(0);
+}
+
+static int __init atngw100_init(void)
+{
+ /*
+ * ATNGW100 uses 16-bit SDRAM interface, so we don't need to
+ * reserve any pins for it.
+ */
+
+ at32_add_system_devices();
+
+ at32_add_device_usart(0);
+
+ set_hw_addr(at32_add_device_eth(0, ð_data[0]));
+ set_hw_addr(at32_add_device_eth(1, ð_data[1]));
+
+ at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+
+ return 0;
+}
+postcore_initcall(atngw100_init);
static struct eth_addr __initdata hw_addr[2];
static struct eth_platform_data __initdata eth_data[2];
-extern struct lcdc_platform_data atstk1000_fb0_data;
+static struct lcdc_platform_data atstk1000_fb0_data;
static struct spi_board_info spi0_board_info[] __initdata = {
{
set_hw_addr(at32_add_device_eth(0, ð_data[0]));
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+ atstk1000_fb0_data.fbmem_start = fbmem_start;
+ atstk1000_fb0_data.fbmem_size = fbmem_size;
at32_add_device_lcdc(0, &atstk1000_fb0_data);
return 0;
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
-
-struct lcdc_platform_data __initdata atstk1000_fb0_data;
-
-void __init board_setup_fbmem(unsigned long fbmem_start,
- unsigned long fbmem_size)
-{
- if (!fbmem_size)
- return;
-
- if (!fbmem_start) {
- void *fbmem;
-
- fbmem = alloc_bootmem_low_pages(fbmem_size);
- fbmem_start = __pa(fbmem);
- } else {
- pg_data_t *pgdat;
-
- for_each_online_pgdat(pgdat) {
- if (fbmem_start >= pgdat->bdata->node_boot_start
- && fbmem_start <= pgdat->bdata->node_low_pfn)
- reserve_bootmem_node(pgdat, fbmem_start,
- fbmem_size);
- }
- }
-
- printk("%luKiB framebuffer memory at address 0x%08lx\n",
- fbmem_size >> 10, fbmem_start);
- atstk1000_fb0_data.fbmem_start = fbmem_start;
- atstk1000_fb0_data.fbmem_size = fbmem_size;
-}
--- /dev/null
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.21-rc6
+# Thu Apr 12 16:35:07 2007
+#
+CONFIG_AVR32=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+# CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+# CONFIG_TASKSTATS is not set
+# CONFIG_UTS_NS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_SYSFS_DEPRECATED=y
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+# CONFIG_SYSCTL_SYSCALL is not set
+CONFIG_KALLSYMS=y
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+# CONFIG_BASE_FULL is not set
+CONFIG_FUTEX=y
+CONFIG_EPOLL=y
+CONFIG_SHMEM=y
+CONFIG_SLAB=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=1
+# CONFIG_SLOB is not set
+
+#
+# Loadable module support
+#
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+
+#
+# Block layer
+#
+CONFIG_BLOCK=y
+# CONFIG_LBD is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+# CONFIG_DEFAULT_DEADLINE is not set
+CONFIG_DEFAULT_CFQ=y
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
+
+#
+# System Type and features
+#
+CONFIG_SUBARCH_AVR32B=y
+CONFIG_MMU=y
+CONFIG_PERFORMANCE_COUNTERS=y
+CONFIG_PLATFORM_AT32AP=y
+CONFIG_CPU_AT32AP7000=y
+# CONFIG_BOARD_ATSTK1000 is not set
+CONFIG_BOARD_ATNGW100=y
+CONFIG_LOADER_U_BOOT=y
+
+#
+# Atmel AVR32 AP options
+#
+# CONFIG_AP7000_32_BIT_SMC is not set
+CONFIG_AP7000_16_BIT_SMC=y
+# CONFIG_AP7000_8_BIT_SMC is not set
+CONFIG_LOAD_ADDRESS=0x10000000
+CONFIG_ENTRY_ADDRESS=0x90000000
+CONFIG_PHYS_OFFSET=0x10000000
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_HAVE_ARCH_BOOTMEM_NODE is not set
+# CONFIG_ARCH_HAVE_MEMORY_PRESENT is not set
+# CONFIG_NEED_NODE_MEMMAP_SIZE is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
+# CONFIG_ARCH_SPARSEMEM_ENABLE is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_RESOURCES_64BIT is not set
+CONFIG_ZONE_DMA_FLAG=0
+# CONFIG_OWNERSHIP_TRACE is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+CONFIG_CMDLINE=""
+
+#
+# Bus options
+#
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+# CONFIG_NETDEBUG is not set
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+CONFIG_XFRM=y
+CONFIG_XFRM_USER=y
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
+CONFIG_NET_KEY=y
+# CONFIG_NET_KEY_MIGRATE is not set
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_ASK_IP_FIB_HASH=y
+# CONFIG_IP_FIB_TRIE is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_MULTIPLE_TABLES is not set
+# CONFIG_IP_ROUTE_MULTIPATH is not set
+# CONFIG_IP_ROUTE_VERBOSE is not set
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+CONFIG_IP_MROUTE=y
+CONFIG_IP_PIMSM_V1=y
+# CONFIG_IP_PIMSM_V2 is not set
+# CONFIG_ARPD is not set
+CONFIG_SYN_COOKIES=y
+CONFIG_INET_AH=y
+CONFIG_INET_ESP=y
+CONFIG_INET_IPCOMP=y
+CONFIG_INET_XFRM_TUNNEL=y
+CONFIG_INET_TUNNEL=y
+CONFIG_INET_XFRM_MODE_TRANSPORT=y
+CONFIG_INET_XFRM_MODE_TUNNEL=y
+CONFIG_INET_XFRM_MODE_BEET=y
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+
+#
+# IP: Virtual Server Configuration
+#
+# CONFIG_IP_VS is not set
+CONFIG_IPV6=y
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+CONFIG_INET6_AH=y
+CONFIG_INET6_ESP=y
+CONFIG_INET6_IPCOMP=y
+# CONFIG_IPV6_MIP6 is not set
+CONFIG_INET6_XFRM_TUNNEL=y
+CONFIG_INET6_TUNNEL=y
+CONFIG_INET6_XFRM_MODE_TRANSPORT=y
+CONFIG_INET6_XFRM_MODE_TUNNEL=y
+CONFIG_INET6_XFRM_MODE_BEET=y
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=y
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
+# CONFIG_NETWORK_SECMARK is not set
+CONFIG_NETFILTER=y
+# CONFIG_NETFILTER_DEBUG is not set
+
+#
+# Core Netfilter Configuration
+#
+# CONFIG_NETFILTER_NETLINK is not set
+CONFIG_NF_CONNTRACK_ENABLED=m
+CONFIG_NF_CONNTRACK_SUPPORT=y
+# CONFIG_IP_NF_CONNTRACK_SUPPORT is not set
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CT_ACCT=y
+CONFIG_NF_CONNTRACK_MARK=y
+# CONFIG_NF_CONNTRACK_EVENTS is not set
+CONFIG_NF_CT_PROTO_GRE=m
+# CONFIG_NF_CT_PROTO_SCTP is not set
+CONFIG_NF_CONNTRACK_AMANDA=m
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_H323=m
+CONFIG_NF_CONNTRACK_IRC=m
+CONFIG_NF_CONNTRACK_NETBIOS_NS=m
+CONFIG_NF_CONNTRACK_PPTP=m
+CONFIG_NF_CONNTRACK_SANE=m
+CONFIG_NF_CONNTRACK_SIP=m
+CONFIG_NF_CONNTRACK_TFTP=m
+CONFIG_NETFILTER_XTABLES=y
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
+# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
+# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+# CONFIG_NETFILTER_XT_TARGET_NOTRACK is not set
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_COMMENT=m
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
+# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
+CONFIG_NETFILTER_XT_MATCH_ESP=m
+CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_LIMIT=m
+CONFIG_NETFILTER_XT_MATCH_MAC=m
+CONFIG_NETFILTER_XT_MATCH_MARK=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
+CONFIG_NETFILTER_XT_MATCH_QUOTA=m
+CONFIG_NETFILTER_XT_MATCH_REALM=m
+# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
+
+#
+# IP: Netfilter Configuration
+#
+CONFIG_NF_CONNTRACK_IPV4=m
+CONFIG_NF_CONNTRACK_PROC_COMPAT=y
+# CONFIG_IP_NF_QUEUE is not set
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_MATCH_IPRANGE=m
+CONFIG_IP_NF_MATCH_TOS=m
+CONFIG_IP_NF_MATCH_RECENT=m
+CONFIG_IP_NF_MATCH_ECN=m
+CONFIG_IP_NF_MATCH_AH=m
+CONFIG_IP_NF_MATCH_TTL=m
+CONFIG_IP_NF_MATCH_OWNER=m
+CONFIG_IP_NF_MATCH_ADDRTYPE=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_TARGET_LOG=m
+# CONFIG_IP_NF_TARGET_ULOG is not set
+CONFIG_NF_NAT=m
+CONFIG_NF_NAT_NEEDED=y
+CONFIG_IP_NF_TARGET_MASQUERADE=m
+CONFIG_IP_NF_TARGET_REDIRECT=m
+CONFIG_IP_NF_TARGET_NETMAP=m
+CONFIG_IP_NF_TARGET_SAME=m
+CONFIG_NF_NAT_SNMP_BASIC=m
+CONFIG_NF_NAT_PROTO_GRE=m
+CONFIG_NF_NAT_FTP=m
+CONFIG_NF_NAT_IRC=m
+CONFIG_NF_NAT_TFTP=m
+CONFIG_NF_NAT_AMANDA=m
+CONFIG_NF_NAT_PPTP=m
+CONFIG_NF_NAT_H323=m
+CONFIG_NF_NAT_SIP=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_TARGET_TOS=m
+CONFIG_IP_NF_TARGET_ECN=m
+CONFIG_IP_NF_TARGET_TTL=m
+CONFIG_IP_NF_TARGET_CLUSTERIP=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_NF_ARPTABLES=m
+CONFIG_IP_NF_ARPFILTER=m
+CONFIG_IP_NF_ARP_MANGLE=m
+
+#
+# IPv6: Netfilter Configuration (EXPERIMENTAL)
+#
+CONFIG_NF_CONNTRACK_IPV6=m
+CONFIG_IP6_NF_QUEUE=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_MATCH_RT=m
+CONFIG_IP6_NF_MATCH_OPTS=m
+CONFIG_IP6_NF_MATCH_FRAG=m
+CONFIG_IP6_NF_MATCH_HL=m
+CONFIG_IP6_NF_MATCH_OWNER=m
+CONFIG_IP6_NF_MATCH_IPV6HEADER=m
+CONFIG_IP6_NF_MATCH_AH=m
+CONFIG_IP6_NF_MATCH_MH=m
+CONFIG_IP6_NF_MATCH_EUI64=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_LOG=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_TARGET_HL=m
+CONFIG_IP6_NF_RAW=m
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+
+#
+# TIPC Configuration (EXPERIMENTAL)
+#
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+CONFIG_VLAN_8021Q=m
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+CONFIG_NET_CLS_ROUTE=y
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+# CONFIG_MTD_OBSOLETE_CHIPS is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_START=0x80000000
+CONFIG_MTD_PHYSMAP_LEN=0x0
+CONFIG_MTD_PHYSMAP_BANKWIDTH=2
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+CONFIG_MTD_DATAFLASH=y
+# CONFIG_MTD_M25P80 is not set
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+
+#
+# NAND Flash Device Drivers
+#
+# CONFIG_MTD_NAND is not set
+
+#
+# OneNAND Flash Device Drivers
+#
+# CONFIG_MTD_ONENAND is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+# CONFIG_PNPACPI is not set
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=m
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_RAM=m
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# Misc devices
+#
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_NETLINK is not set
+
+#
+# Serial ATA (prod) and Parallel ATA (experimental) drivers
+#
+# CONFIG_ATA is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+
+#
+# I2O device support
+#
+
+#
+# Network device support
+#
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_EQUALIZER is not set
+CONFIG_TUN=m
+
+#
+# PHY device support
+#
+# CONFIG_PHYLIB is not set
+
+#
+# Ethernet (10 or 100Mbit)
+#
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+CONFIG_MACB=y
+
+#
+# Ethernet (1000 Mbit)
+#
+
+#
+# Ethernet (10000 Mbit)
+#
+
+#
+# Token Ring devices
+#
+
+#
+# Wireless LAN (non-hamradio)
+#
+# CONFIG_NET_RADIO is not set
+
+#
+# Wan interfaces
+#
+# CONFIG_WAN is not set
+CONFIG_PPP=m
+# CONFIG_PPP_MULTILINK is not set
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_ASYNC=m
+# CONFIG_PPP_SYNC_TTY is not set
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_MPPE=m
+CONFIG_PPPOE=m
+# CONFIG_SLIP is not set
+CONFIG_SLHC=m
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Telephony Support
+#
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_ATMEL=y
+CONFIG_SERIAL_ATMEL_CONSOLE=y
+# CONFIG_SERIAL_ATMEL_TTYAT is not set
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_RTC is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+# CONFIG_TCG_TPM is not set
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# SPI support
+#
+CONFIG_SPI=y
+# CONFIG_SPI_DEBUG is not set
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_ATMEL=y
+# CONFIG_SPI_BITBANG is not set
+
+#
+# SPI Protocol Masters
+#
+# CONFIG_SPI_AT25 is not set
+
+#
+# Dallas's 1-wire bus
+#
+# CONFIG_W1 is not set
+
+#
+# Hardware Monitoring support
+#
+# CONFIG_HWMON is not set
+# CONFIG_HWMON_VID is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+
+#
+# Graphics support
+#
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+# CONFIG_FB is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+
+#
+# USB support
+#
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# LED devices
+#
+# CONFIG_NEW_LEDS is not set
+
+#
+# LED drivers
+#
+
+#
+# LED Triggers
+#
+
+#
+# InfiniBand support
+#
+
+#
+# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
+#
+
+#
+# Real Time Clock
+#
+# CONFIG_RTC_CLASS is not set
+
+#
+# DMA Engine support
+#
+# CONFIG_DMA_ENGINE is not set
+
+#
+# DMA Clients
+#
+
+#
+# DMA Devices
+#
+
+#
+# Auxiliary Display support
+#
+
+#
+# Virtualization
+#
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_FS_XATTR is not set
+# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_INOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+CONFIG_FUSE_FS=m
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+CONFIG_FAT_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_FAT_DEFAULT_CODEPAGE=850
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+# CONFIG_PROC_KCORE is not set
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+CONFIG_CONFIGFS_FS=y
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+CONFIG_SMB_FS=m
+# CONFIG_SMB_NLS_DEFAULT is not set
+CONFIG_CIFS=m
+# CONFIG_CIFS_STATS is not set
+# CONFIG_CIFS_WEAK_PW_HASH is not set
+# CONFIG_CIFS_XATTR is not set
+# CONFIG_CIFS_DEBUG2 is not set
+# CONFIG_CIFS_EXPERIMENTAL is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+# CONFIG_NLS_CODEPAGE_437 is not set
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+CONFIG_NLS_CODEPAGE_850=y
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+CONFIG_NLS_ISO8859_1=y
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+CONFIG_NLS_UTF8=y
+
+#
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
+# Kernel hacking
+#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_LIST is not set
+CONFIG_FRAME_POINTER=y
+# CONFIG_FORCED_INLINING is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_KPROBES is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_BLKCIPHER=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_HMAC=y
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_SHA1=y
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_PCBC=m
+# CONFIG_CRYPTO_LRW is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+CONFIG_CRYPTO_ARC4=m
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+CONFIG_CRYPTO_DEFLATE=y
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Hardware crypto devices
+#
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+CONFIG_CRC_CCITT=m
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=y
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_TEXTSEARCH=y
+CONFIG_TEXTSEARCH_KMP=m
+CONFIG_TEXTSEARCH_BM=m
+CONFIG_TEXTSEARCH_FSM=m
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
void __init setup_processor(void)
{
unsigned long config0, config1;
+ unsigned long features;
unsigned cpu_id, cpu_rev, arch_id, arch_rev, mmu_type;
unsigned tmp;
- config0 = sysreg_read(CONFIG0); /* 0x0000013e; */
- config1 = sysreg_read(CONFIG1); /* 0x01f689a2; */
- cpu_id = config0 >> 24;
- cpu_rev = (config0 >> 16) & 0xff;
- arch_id = (config0 >> 13) & 0x07;
- arch_rev = (config0 >> 10) & 0x07;
- mmu_type = (config0 >> 7) & 0x03;
+ config0 = sysreg_read(CONFIG0);
+ config1 = sysreg_read(CONFIG1);
+ cpu_id = SYSREG_BFEXT(PROCESSORID, config0);
+ cpu_rev = SYSREG_BFEXT(PROCESSORREVISION, config0);
+ arch_id = SYSREG_BFEXT(AT, config0);
+ arch_rev = SYSREG_BFEXT(AR, config0);
+ mmu_type = SYSREG_BFEXT(MMUT, config0);
boot_cpu_data.arch_type = arch_id;
boot_cpu_data.cpu_type = cpu_id;
boot_cpu_data.cpu_revision = cpu_rev;
boot_cpu_data.tlb_config = mmu_type;
- tmp = (config1 >> 13) & 0x07;
+ tmp = SYSREG_BFEXT(ILSZ, config1);
if (tmp) {
- boot_cpu_data.icache.ways = 1 << ((config1 >> 10) & 0x07);
- boot_cpu_data.icache.sets = 1 << ((config1 >> 16) & 0x0f);
+ boot_cpu_data.icache.ways = 1 << SYSREG_BFEXT(IASS, config1);
+ boot_cpu_data.icache.sets = 1 << SYSREG_BFEXT(ISET, config1);
boot_cpu_data.icache.linesz = 1 << (tmp + 1);
}
- tmp = (config1 >> 3) & 0x07;
+ tmp = SYSREG_BFEXT(DLSZ, config1);
if (tmp) {
- boot_cpu_data.dcache.ways = 1 << (config1 & 0x07);
- boot_cpu_data.dcache.sets = 1 << ((config1 >> 6) & 0x0f);
+ boot_cpu_data.dcache.ways = 1 << SYSREG_BFEXT(DASS, config1);
+ boot_cpu_data.dcache.sets = 1 << SYSREG_BFEXT(DSET, config1);
boot_cpu_data.dcache.linesz = 1 << (tmp + 1);
}
cpu_names[cpu_id], cpu_id, cpu_rev,
arch_names[arch_id], arch_rev);
printk ("CPU: MMU configuration: %s\n", mmu_types[mmu_type]);
+
printk ("CPU: features:");
- if (config0 & (1 << 6))
- printk(" fpu");
- if (config0 & (1 << 5))
- printk(" java");
- if (config0 & (1 << 4))
- printk(" perfctr");
- if (config0 & (1 << 3))
+ features = 0;
+ if (config0 & SYSREG_BIT(CONFIG0_R)) {
+ features |= AVR32_FEATURE_RMW;
+ printk(" rmw");
+ }
+ if (config0 & SYSREG_BIT(CONFIG0_D)) {
+ features |= AVR32_FEATURE_DSP;
+ printk(" dsp");
+ }
+ if (config0 & SYSREG_BIT(CONFIG0_S)) {
+ features |= AVR32_FEATURE_SIMD;
+ printk(" simd");
+ }
+ if (config0 & SYSREG_BIT(CONFIG0_O)) {
+ features |= AVR32_FEATURE_OCD;
printk(" ocd");
+ }
+ if (config0 & SYSREG_BIT(CONFIG0_P)) {
+ features |= AVR32_FEATURE_PCTR;
+ printk(" perfctr");
+ }
+ if (config0 & SYSREG_BIT(CONFIG0_J)) {
+ features |= AVR32_FEATURE_JAVA;
+ printk(" java");
+ }
+ if (config0 & SYSREG_BIT(CONFIG0_F)) {
+ features |= AVR32_FEATURE_FPU;
+ printk(" fpu");
+ }
printk("\n");
+ boot_cpu_data.features = features;
}
#ifdef CONFIG_PROC_FS
.global tlb_miss_common
tlb_miss_common:
- mfsr r0, SYSREG_PTBR
- mfsr r1, SYSREG_TLBEAR
+ mfsr r0, SYSREG_TLBEAR
+ mfsr r1, SYSREG_PTBR
/* Is it the vmalloc space? */
- bld r1, 31
+ bld r0, 31
brcs handle_vmalloc_miss
/* First level lookup */
pgtbl_lookup:
- lsr r2, r1, PGDIR_SHIFT
- ld.w r0, r0[r2 << 2]
- bld r0, _PAGE_BIT_PRESENT
+ lsr r2, r0, PGDIR_SHIFT
+ ld.w r3, r1[r2 << 2]
+ bfextu r1, r0, PAGE_SHIFT, PGDIR_SHIFT - PAGE_SHIFT
+ bld r3, _PAGE_BIT_PRESENT
brcc page_table_not_present
- /* TODO: Check access rights on page table if necessary */
-
/* Translate to virtual address in P1. */
- andl r0, 0xf000
- sbr r0, 31
+ andl r3, 0xf000
+ sbr r3, 31
/* Second level lookup */
- lsl r1, (32 - PGDIR_SHIFT)
- lsr r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT
- add r2, r0, r1 << 2
- ld.w r1, r2[0]
- bld r1, _PAGE_BIT_PRESENT
+ ld.w r2, r3[r1 << 2]
+ mfsr r0, SYSREG_TLBARLO
+ bld r2, _PAGE_BIT_PRESENT
brcc page_not_present
/* Mark the page as accessed */
- sbr r1, _PAGE_BIT_ACCESSED
- st.w r2[0], r1
+ sbr r2, _PAGE_BIT_ACCESSED
+ st.w r3[r1 << 2], r2
/* Drop software flags */
- andl r1, _PAGE_FLAGS_HARDWARE_MASK & 0xffff
- mtsr SYSREG_TLBELO, r1
+ andl r2, _PAGE_FLAGS_HARDWARE_MASK & 0xffff
+ mtsr SYSREG_TLBELO, r2
/* Figure out which entry we want to replace */
- mfsr r0, SYSREG_TLBARLO
+ mfsr r1, SYSREG_MMUCR
clz r2, r0
brcc 1f
- mov r1, -1 /* All entries have been accessed, */
- mtsr SYSREG_TLBARLO, r1 /* so reset TLBAR */
- mov r2, 0 /* and start at 0 */
-1: mfsr r1, SYSREG_MMUCR
- lsl r2, 14
- andl r1, 0x3fff, COH
- or r1, r2
- mtsr SYSREG_MMUCR, r1
+ mov r3, -1 /* All entries have been accessed, */
+ mov r2, 0 /* so start at 0 */
+ mtsr SYSREG_TLBARLO, r3 /* and reset TLBAR */
+1: bfins r1, r2, SYSREG_DRP_OFFSET, SYSREG_DRP_SIZE
+ mtsr SYSREG_MMUCR, r1
tlbw
tlbmiss_restore
handle_vmalloc_miss:
/* Simply do the lookup in init's page table */
- mov r0, lo(swapper_pg_dir)
- orh r0, hi(swapper_pg_dir)
+ mov r1, lo(swapper_pg_dir)
+ orh r1, hi(swapper_pg_dir)
rjmp pgtbl_lookup
do_nmi_ll:
sub sp, 4
stmts --sp, r0-lr
- /* FIXME: Make sure RAR_NMI and RSR_NMI are pushed instead of *_EX */
- rcall save_full_context_ex
+ mfsr r9, SYSREG_RSR_NMI
+ mfsr r8, SYSREG_RAR_NMI
+ bfextu r0, r9, MODE_SHIFT, 3
+ brne 2f
+
+1: pushm r8, r9 /* PC and SR */
mfsr r12, SYSREG_ECR
mov r11, sp
rcall do_nmi
- rjmp bad_return
+ popm r8-r9
+ mtsr SYSREG_RAR_NMI, r8
+ tst r0, r0
+ mtsr SYSREG_RSR_NMI, r9
+ brne 3f
+
+ ldmts sp++, r0-lr
+ sub sp, -4 /* skip r12_orig */
+ rete
+
+2: sub r10, sp, -(FRAME_SIZE_FULL - REG_LR)
+ stdsp sp[4], r10 /* replace saved SP */
+ rjmp 1b
+
+3: popm lr
+ sub sp, -4 /* skip sp */
+ popm r0-r12
+ sub sp, -4 /* skip r12_orig */
+ rete
handle_address_fault:
sub sp, 4
rcall do_IRQ
lddsp r4, sp[REG_SR]
- andh r4, (MODE_MASK >> 16), COH
+ bfextu r4, r4, SYSREG_M0_OFFSET, 3
+ cp.w r4, MODE_SUPERVISOR >> SYSREG_M0_OFFSET
+ breq 2f
+ cp.w r4, MODE_USER >> SYSREG_M0_OFFSET
#ifdef CONFIG_PREEMPT
- brne 2f
+ brne 3f
#else
brne 1f
#endif
sub sp, -4 /* ignore r12_orig */
rete
+2: get_thread_info r0
+ ld.w r1, r0[TI_flags]
+ bld r1, TIF_CPU_GOING_TO_SLEEP
#ifdef CONFIG_PREEMPT
-2:
- get_thread_info r0
+ brcc 3f
+#else
+ brcc 1b
+#endif
+ sub r1, pc, . - cpu_idle_skip_sleep
+ stdsp sp[REG_PC], r1
+#ifdef CONFIG_PREEMPT
+3: get_thread_info r0
ld.w r2, r0[TI_preempt_count]
cp.w r2, 0
brne 1b
bld r4, SYSREG_GM_OFFSET
brcs 1b
rcall preempt_schedule_irq
- rjmp 1b
#endif
+ rjmp 1b
.endm
.section .irq.text,"ax",@progbits
+.global cpu_idle_sleep
+cpu_idle_sleep:
+ mask_interrupts
+ get_thread_info r8
+ ld.w r9, r8[TI_flags]
+ bld r9, TIF_NEED_RESCHED
+ brcs cpu_idle_enable_int_and_exit
+ sbr r9, TIF_CPU_GOING_TO_SLEEP
+ st.w r8[TI_flags], r9
+ unmask_interrupts
+ sleep 0
+cpu_idle_skip_sleep:
+ mask_interrupts
+ ld.w r9, r8[TI_flags]
+ cbr r9, TIF_CPU_GOING_TO_SLEEP
+ st.w r8[TI_flags], r9
+cpu_idle_enable_int_and_exit:
+ unmask_interrupts
+ retal r12
+
.global irq_level0
.global irq_level1
.global irq_level2
* published by the Free Software Foundation.
*/
-#include <linux/moduleloader.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
+#include <linux/bug.h>
#include <linux/elf.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleloader.h>
#include <linux/vmalloc.h>
void *module_alloc(unsigned long size)
vfree(module->arch.syminfo);
module->arch.syminfo = NULL;
- return 0;
+ return module_bug_finalize(hdr, sechdrs, module);
}
void module_arch_cleanup(struct module *module)
{
-
+ module_bug_cleanup(module);
}
#include <linux/fs.h>
#include <linux/ptrace.h>
#include <linux/reboot.h>
+#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <asm/sysreg.h>
void (*pm_power_off)(void) = NULL;
EXPORT_SYMBOL(pm_power_off);
+extern void cpu_idle_sleep(void);
+
/*
* This file handles the architecture-dependent parts of process handling..
*/
{
/* endless idle loop with no priority at all */
while (1) {
- /* TODO: Enter sleep mode */
while (!need_resched())
- cpu_relax();
+ cpu_idle_sleep();
preempt_enable_no_resched();
schedule();
preempt_disable();
/* do nothing */
}
+static void dump_mem(const char *str, const char *log_lvl,
+ unsigned long bottom, unsigned long top)
+{
+ unsigned long p;
+ int i;
+
+ printk("%s%s(0x%08lx to 0x%08lx)\n", log_lvl, str, bottom, top);
+
+ for (p = bottom & ~31; p < top; ) {
+ printk("%s%04lx: ", log_lvl, p & 0xffff);
+
+ for (i = 0; i < 8; i++, p += 4) {
+ unsigned int val;
+
+ if (p < bottom || p >= top)
+ printk(" ");
+ else {
+ if (__get_user(val, (unsigned int __user *)p)) {
+ printk("\n");
+ goto out;
+ }
+ printk("%08x ", val);
+ }
+ }
+ printk("\n");
+ }
+
+out:
+ return;
+}
+
+static inline int valid_stack_ptr(struct thread_info *tinfo, unsigned long p)
+{
+ return (p > (unsigned long)tinfo)
+ && (p < (unsigned long)tinfo + THREAD_SIZE - 3);
+}
+
+#ifdef CONFIG_FRAME_POINTER
+static void show_trace_log_lvl(struct task_struct *tsk, unsigned long *sp,
+ struct pt_regs *regs, const char *log_lvl)
+{
+ unsigned long lr, fp;
+ struct thread_info *tinfo;
+
+ if (regs)
+ fp = regs->r7;
+ else if (tsk == current)
+ asm("mov %0, r7" : "=r"(fp));
+ else
+ fp = tsk->thread.cpu_context.r7;
+
+ /*
+ * Walk the stack as long as the frame pointer (a) is within
+ * the kernel stack of the task, and (b) it doesn't move
+ * downwards.
+ */
+ tinfo = task_thread_info(tsk);
+ printk("%sCall trace:\n", log_lvl);
+ while (valid_stack_ptr(tinfo, fp)) {
+ unsigned long new_fp;
+
+ lr = *(unsigned long *)fp;
+#ifdef CONFIG_KALLSYMS
+ printk("%s [<%08lx>] ", log_lvl, lr);
+#else
+ printk(" [<%08lx>] ", lr);
+#endif
+ print_symbol("%s\n", lr);
+
+ new_fp = *(unsigned long *)(fp + 4);
+ if (new_fp <= fp)
+ break;
+ fp = new_fp;
+ }
+ printk("\n");
+}
+#else
+static void show_trace_log_lvl(struct task_struct *tsk, unsigned long *sp,
+ struct pt_regs *regs, const char *log_lvl)
+{
+ unsigned long addr;
+
+ printk("%sCall trace:\n", log_lvl);
+
+ while (!kstack_end(sp)) {
+ addr = *sp++;
+ if (kernel_text_address(addr)) {
+#ifdef CONFIG_KALLSYMS
+ printk("%s [<%08lx>] ", log_lvl, addr);
+#else
+ printk(" [<%08lx>] ", addr);
+#endif
+ print_symbol("%s\n", addr);
+ }
+ }
+ printk("\n");
+}
+#endif
+
+void show_stack_log_lvl(struct task_struct *tsk, unsigned long sp,
+ struct pt_regs *regs, const char *log_lvl)
+{
+ struct thread_info *tinfo;
+
+ if (sp == 0) {
+ if (tsk)
+ sp = tsk->thread.cpu_context.ksp;
+ else
+ sp = (unsigned long)&tinfo;
+ }
+ if (!tsk)
+ tsk = current;
+
+ tinfo = task_thread_info(tsk);
+
+ if (valid_stack_ptr(tinfo, sp)) {
+ dump_mem("Stack: ", log_lvl, sp,
+ THREAD_SIZE + (unsigned long)tinfo);
+ show_trace_log_lvl(tsk, (unsigned long *)sp, regs, log_lvl);
+ }
+}
+
+void show_stack(struct task_struct *tsk, unsigned long *stack)
+{
+ show_stack_log_lvl(tsk, (unsigned long)stack, NULL, "");
+}
+
+void dump_stack(void)
+{
+ unsigned long stack;
+
+ show_trace_log_lvl(current, &stack, NULL, "");
+}
+EXPORT_SYMBOL(dump_stack);
+
static const char *cpu_modes[] = {
"Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
"Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
};
-void show_regs(struct pt_regs *regs)
+void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl)
{
unsigned long sp = regs->sp;
unsigned long lr = regs->lr;
unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT;
- if (!user_mode(regs))
+ if (!user_mode(regs)) {
sp = (unsigned long)regs + FRAME_SIZE_FULL;
- print_symbol("PC is at %s\n", instruction_pointer(regs));
- print_symbol("LR is at %s\n", lr);
- printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
- "sp : %08lx r12: %08lx r11: %08lx\n",
- instruction_pointer(regs),
- lr, print_tainted(), sp, regs->r12, regs->r11);
- printk("r10: %08lx r9 : %08lx r8 : %08lx\n",
- regs->r10, regs->r9, regs->r8);
- printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
- regs->r7, regs->r6, regs->r5, regs->r4);
- printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
- regs->r3, regs->r2, regs->r1, regs->r0);
- printk("Flags: %c%c%c%c%c\n",
+ printk("%s", log_lvl);
+ print_symbol("PC is at %s\n", instruction_pointer(regs));
+ printk("%s", log_lvl);
+ print_symbol("LR is at %s\n", lr);
+ }
+
+ printk("%spc : [<%08lx>] lr : [<%08lx>] %s\n"
+ "%ssp : %08lx r12: %08lx r11: %08lx\n",
+ log_lvl, instruction_pointer(regs), lr, print_tainted(),
+ log_lvl, sp, regs->r12, regs->r11);
+ printk("%sr10: %08lx r9 : %08lx r8 : %08lx\n",
+ log_lvl, regs->r10, regs->r9, regs->r8);
+ printk("%sr7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
+ log_lvl, regs->r7, regs->r6, regs->r5, regs->r4);
+ printk("%sr3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
+ log_lvl, regs->r3, regs->r2, regs->r1, regs->r0);
+ printk("%sFlags: %c%c%c%c%c\n", log_lvl,
regs->sr & SR_Q ? 'Q' : 'q',
regs->sr & SR_V ? 'V' : 'v',
regs->sr & SR_N ? 'N' : 'n',
regs->sr & SR_Z ? 'Z' : 'z',
regs->sr & SR_C ? 'C' : 'c');
- printk("Mode bits: %c%c%c%c%c%c%c%c%c\n",
+ printk("%sMode bits: %c%c%c%c%c%c%c%c%c\n", log_lvl,
regs->sr & SR_H ? 'H' : 'h',
regs->sr & SR_R ? 'R' : 'r',
regs->sr & SR_J ? 'J' : 'j',
regs->sr & SR_I1M ? '1' : '.',
regs->sr & SR_I0M ? '0' : '.',
regs->sr & SR_GM ? 'G' : 'g');
- printk("CPU Mode: %s\n", cpu_modes[mode]);
+ printk("%sCPU Mode: %s\n", log_lvl, cpu_modes[mode]);
+ printk("%sProcess: %s [%d] (task: %p thread: %p)\n",
+ log_lvl, current->comm, current->pid, current,
+ task_thread_info(current));
+}
+
+void show_regs(struct pt_regs *regs)
+{
+ unsigned long sp = regs->sp;
+
+ if (!user_mode(regs))
+ sp = (unsigned long)regs + FRAME_SIZE_FULL;
- show_trace(NULL, (unsigned long *)sp, regs);
+ show_regs_log_lvl(regs, "");
+ show_trace_log_lvl(current, (unsigned long *)sp, regs, "");
}
EXPORT_SYMBOL(show_regs);
#include <linux/clk.h>
#include <linux/init.h>
+#include <linux/initrd.h>
#include <linux/sched.h>
#include <linux/console.h>
#include <linux/ioport.h>
#include <linux/bootmem.h>
#include <linux/fs.h>
#include <linux/module.h>
+#include <linux/pfn.h>
#include <linux/root_dev.h>
#include <linux/cpu.h>
#include <linux/kernel.h>
extern int root_mountflags;
-/*
- * Bootloader-provided information about physical memory
- */
-struct tag_mem_range *mem_phys;
-struct tag_mem_range *mem_reserved;
-struct tag_mem_range *mem_ramdisk;
-
/*
* Initialize loops_per_jiffy as 5000000 (500MIPS).
* Better make it too large than too small...
static char __initdata command_line[COMMAND_LINE_SIZE];
/*
- * Should be more than enough, but if you have a _really_ complex
- * setup, you might need to increase the size of this...
+ * Standard memory resources
*/
-static struct tag_mem_range __initdata mem_range_cache[32];
-static unsigned mem_range_next_free;
+static struct resource __initdata kernel_data = {
+ .name = "Kernel data",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_MEM,
+};
+static struct resource __initdata kernel_code = {
+ .name = "Kernel code",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_MEM,
+ .sibling = &kernel_data,
+};
/*
- * Standard memory resources
+ * Available system RAM and reserved regions as singly linked
+ * lists. These lists are traversed using the sibling pointer in
+ * struct resource and are kept sorted at all times.
*/
-static struct resource mem_res[] = {
- {
- .name = "Kernel code",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_MEM
- },
- {
- .name = "Kernel data",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_MEM,
- },
-};
+static struct resource *__initdata system_ram;
+static struct resource *__initdata reserved = &kernel_code;
+
+/*
+ * We need to allocate these before the bootmem allocator is up and
+ * running, so we need this "cache". 32 entries are probably enough
+ * for all but the most insanely complex systems.
+ */
+static struct resource __initdata res_cache[32];
+static unsigned int __initdata res_cache_next_free;
+
+static void __init resource_init(void)
+{
+ struct resource *mem, *res;
+ struct resource *new;
+
+ kernel_code.start = __pa(init_mm.start_code);
+
+ for (mem = system_ram; mem; mem = mem->sibling) {
+ new = alloc_bootmem_low(sizeof(struct resource));
+ memcpy(new, mem, sizeof(struct resource));
+
+ new->sibling = NULL;
+ if (request_resource(&iomem_resource, new))
+ printk(KERN_WARNING "Bad RAM resource %08x-%08x\n",
+ mem->start, mem->end);
+ }
+
+ for (res = reserved; res; res = res->sibling) {
+ new = alloc_bootmem_low(sizeof(struct resource));
+ memcpy(new, res, sizeof(struct resource));
+
+ new->sibling = NULL;
+ if (insert_resource(&iomem_resource, new))
+ printk(KERN_WARNING
+ "Bad reserved resource %s (%08x-%08x)\n",
+ res->name, res->start, res->end);
+ }
+}
+
+static void __init
+add_physical_memory(resource_size_t start, resource_size_t end)
+{
+ struct resource *new, *next, **pprev;
+
+ for (pprev = &system_ram, next = system_ram; next;
+ pprev = &next->sibling, next = next->sibling) {
+ if (end < next->start)
+ break;
+ if (start <= next->end) {
+ printk(KERN_WARNING
+ "Warning: Physical memory map is broken\n");
+ printk(KERN_WARNING
+ "Warning: %08x-%08x overlaps %08x-%08x\n",
+ start, end, next->start, next->end);
+ return;
+ }
+ }
+
+ if (res_cache_next_free >= ARRAY_SIZE(res_cache)) {
+ printk(KERN_WARNING
+ "Warning: Failed to add physical memory %08x-%08x\n",
+ start, end);
+ return;
+ }
+
+ new = &res_cache[res_cache_next_free++];
+ new->start = start;
+ new->end = end;
+ new->name = "System RAM";
+ new->flags = IORESOURCE_MEM;
+
+ *pprev = new;
+}
+
+static int __init
+add_reserved_region(resource_size_t start, resource_size_t end,
+ const char *name)
+{
+ struct resource *new, *next, **pprev;
+
+ if (end < start)
+ return -EINVAL;
+
+ if (res_cache_next_free >= ARRAY_SIZE(res_cache))
+ return -ENOMEM;
+
+ for (pprev = &reserved, next = reserved; next;
+ pprev = &next->sibling, next = next->sibling) {
+ if (end < next->start)
+ break;
+ if (start <= next->end)
+ return -EBUSY;
+ }
+
+ new = &res_cache[res_cache_next_free++];
+ new->start = start;
+ new->end = end;
+ new->name = name;
+ new->flags = IORESOURCE_MEM;
+
+ *pprev = new;
+
+ return 0;
+}
+
+static unsigned long __init
+find_free_region(const struct resource *mem, resource_size_t size,
+ resource_size_t align)
+{
+ struct resource *res;
+ unsigned long target;
+
+ target = ALIGN(mem->start, align);
+ for (res = reserved; res; res = res->sibling) {
+ if ((target + size) <= res->start)
+ break;
+ if (target <= res->end)
+ target = ALIGN(res->end + 1, align);
+ }
+
+ if ((target + size) > (mem->end + 1))
+ return mem->end + 1;
+
+ return target;
+}
+
+static int __init
+alloc_reserved_region(resource_size_t *start, resource_size_t size,
+ resource_size_t align, const char *name)
+{
+ struct resource *mem;
+ resource_size_t target;
+ int ret;
+
+ for (mem = system_ram; mem; mem = mem->sibling) {
+ target = find_free_region(mem, size, align);
+ if (target <= mem->end) {
+ ret = add_reserved_region(target, target + size - 1,
+ name);
+ if (!ret)
+ *start = target;
+ return ret;
+ }
+ }
-#define kernel_code mem_res[0]
-#define kernel_data mem_res[1]
+ return -ENOMEM;
+}
/*
* Early framebuffer allocation. Works as follows:
* - If fbmem_size is zero, nothing will be allocated or reserved.
* - If fbmem_start is zero when setup_bootmem() is called,
- * fbmem_size bytes will be allocated from the bootmem allocator.
+ * a block of fbmem_size bytes will be reserved before bootmem
+ * initialization. It will be aligned to the largest page size
+ * that fbmem_size is a multiple of.
* - If fbmem_start is nonzero, an area of size fbmem_size will be
- * reserved at the physical address fbmem_start if necessary. If
- * the area isn't in a memory region known to the kernel, it will
- * be left alone.
+ * reserved at the physical address fbmem_start if possible. If
+ * it collides with other reserved memory, a different block of
+ * same size will be allocated, just as if fbmem_start was zero.
*
* Board-specific code may use these variables to set up platform data
* for the framebuffer driver if fbmem_size is nonzero.
*/
-static unsigned long __initdata fbmem_start;
-static unsigned long __initdata fbmem_size;
+resource_size_t __initdata fbmem_start;
+resource_size_t __initdata fbmem_size;
/*
* "fbmem=xxx[kKmM]" allocates the specified amount of boot memory for
*/
static int __init early_parse_fbmem(char *p)
{
+ int ret;
+ unsigned long align;
+
fbmem_size = memparse(p, &p);
- if (*p == '@')
+ if (*p == '@') {
fbmem_start = memparse(p, &p);
- return 0;
-}
-early_param("fbmem", early_parse_fbmem);
-
-static inline void __init resource_init(void)
-{
- struct tag_mem_range *region;
-
- kernel_code.start = __pa(init_mm.start_code);
- kernel_code.end = __pa(init_mm.end_code - 1);
- kernel_data.start = __pa(init_mm.end_code);
- kernel_data.end = __pa(init_mm.brk - 1);
-
- for (region = mem_phys; region; region = region->next) {
- struct resource *res;
- unsigned long phys_start, phys_end;
-
- if (region->size == 0)
- continue;
-
- phys_start = region->addr;
- phys_end = phys_start + region->size - 1;
-
- res = alloc_bootmem_low(sizeof(*res));
- res->name = "System RAM";
- res->start = phys_start;
- res->end = phys_end;
- res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-
- request_resource (&iomem_resource, res);
+ ret = add_reserved_region(fbmem_start,
+ fbmem_start + fbmem_size - 1,
+ "Framebuffer");
+ if (ret) {
+ printk(KERN_WARNING
+ "Failed to reserve framebuffer memory\n");
+ fbmem_start = 0;
+ }
+ }
- if (kernel_code.start >= res->start &&
- kernel_code.end <= res->end)
- request_resource (res, &kernel_code);
- if (kernel_data.start >= res->start &&
- kernel_data.end <= res->end)
- request_resource (res, &kernel_data);
+ if (!fbmem_start) {
+ if ((fbmem_size & 0x000fffffUL) == 0)
+ align = 0x100000; /* 1 MiB */
+ else if ((fbmem_size & 0x0000ffffUL) == 0)
+ align = 0x10000; /* 64 KiB */
+ else
+ align = 0x1000; /* 4 KiB */
+
+ ret = alloc_reserved_region(&fbmem_start, fbmem_size,
+ align, "Framebuffer");
+ if (ret) {
+ printk(KERN_WARNING
+ "Failed to allocate framebuffer memory\n");
+ fbmem_size = 0;
+ }
}
+
+ return 0;
}
+early_param("fbmem", early_parse_fbmem);
static int __init parse_tag_core(struct tag *tag)
{
}
__tagtable(ATAG_CORE, parse_tag_core);
-static int __init parse_tag_mem_range(struct tag *tag,
- struct tag_mem_range **root)
+static int __init parse_tag_mem(struct tag *tag)
{
- struct tag_mem_range *cur, **pprev;
- struct tag_mem_range *new;
+ unsigned long start, end;
/*
* Ignore zero-sized entries. If we're running standalone, the
if (tag->u.mem_range.size == 0)
return 0;
- /*
- * Copy the data so the bootmem init code doesn't need to care
- * about it.
- */
- if (mem_range_next_free >= ARRAY_SIZE(mem_range_cache))
- panic("Physical memory map too complex!\n");
+ start = tag->u.mem_range.addr;
+ end = tag->u.mem_range.addr + tag->u.mem_range.size - 1;
+
+ add_physical_memory(start, end);
+ return 0;
+}
+__tagtable(ATAG_MEM, parse_tag_mem);
+
+static int __init parse_tag_rdimg(struct tag *tag)
+{
+#ifdef CONFIG_INITRD
+ struct tag_mem_range *mem = &tag->u.mem_range;
+ int ret;
- new = &mem_range_cache[mem_range_next_free++];
- *new = tag->u.mem_range;
+ if (initrd_start) {
+ printk(KERN_WARNING
+ "Warning: Only the first initrd image will be used\n");
+ return 0;
+ }
- pprev = root;
- cur = *root;
- while (cur) {
- pprev = &cur->next;
- cur = cur->next;
+ ret = add_reserved_region(mem->start, mem->start + mem->size - 1,
+ "initrd");
+ if (ret) {
+ printk(KERN_WARNING
+ "Warning: Failed to reserve initrd memory\n");
+ return ret;
}
- *pprev = new;
- new->next = NULL;
+ initrd_start = (unsigned long)__va(mem->addr);
+ initrd_end = initrd_start + mem->size;
+#else
+ printk(KERN_WARNING "RAM disk image present, but "
+ "no initrd support in kernel, ignoring\n");
+#endif
return 0;
}
+__tagtable(ATAG_RDIMG, parse_tag_rdimg);
-static int __init parse_tag_mem(struct tag *tag)
+static int __init parse_tag_rsvd_mem(struct tag *tag)
{
- return parse_tag_mem_range(tag, &mem_phys);
+ struct tag_mem_range *mem = &tag->u.mem_range;
+
+ return add_reserved_region(mem->addr, mem->addr + mem->size - 1,
+ "Reserved");
}
-__tagtable(ATAG_MEM, parse_tag_mem);
+__tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem);
static int __init parse_tag_cmdline(struct tag *tag)
{
}
__tagtable(ATAG_CMDLINE, parse_tag_cmdline);
-static int __init parse_tag_rdimg(struct tag *tag)
-{
- return parse_tag_mem_range(tag, &mem_ramdisk);
-}
-__tagtable(ATAG_RDIMG, parse_tag_rdimg);
-
static int __init parse_tag_clock(struct tag *tag)
{
/*
}
__tagtable(ATAG_CLOCK, parse_tag_clock);
-static int __init parse_tag_rsvd_mem(struct tag *tag)
-{
- return parse_tag_mem_range(tag, &mem_reserved);
-}
-__tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem);
-
/*
* Scan the tag table for this tag, and call its parse function. The
* tag table is built by the linker from all the __tagtable
t->hdr.tag);
}
+/*
+ * Find a free memory region large enough for storing the
+ * bootmem bitmap.
+ */
+static unsigned long __init
+find_bootmap_pfn(const struct resource *mem)
+{
+ unsigned long bootmap_pages, bootmap_len;
+ unsigned long node_pages = PFN_UP(mem->end - mem->start + 1);
+ unsigned long bootmap_start;
+
+ bootmap_pages = bootmem_bootmap_pages(node_pages);
+ bootmap_len = bootmap_pages << PAGE_SHIFT;
+
+ /*
+ * Find a large enough region without reserved pages for
+ * storing the bootmem bitmap. We can take advantage of the
+ * fact that all lists have been sorted.
+ *
+ * We have to check that we don't collide with any reserved
+ * regions, which includes the kernel image and any RAMDISK
+ * images.
+ */
+ bootmap_start = find_free_region(mem, bootmap_len, PAGE_SIZE);
+
+ return bootmap_start >> PAGE_SHIFT;
+}
+
+#define MAX_LOWMEM HIGHMEM_START
+#define MAX_LOWMEM_PFN PFN_DOWN(MAX_LOWMEM)
+
+static void __init setup_bootmem(void)
+{
+ unsigned bootmap_size;
+ unsigned long first_pfn, bootmap_pfn, pages;
+ unsigned long max_pfn, max_low_pfn;
+ unsigned node = 0;
+ struct resource *res;
+
+ printk(KERN_INFO "Physical memory:\n");
+ for (res = system_ram; res; res = res->sibling)
+ printk(" %08x-%08x\n", res->start, res->end);
+ printk(KERN_INFO "Reserved memory:\n");
+ for (res = reserved; res; res = res->sibling)
+ printk(" %08x-%08x: %s\n",
+ res->start, res->end, res->name);
+
+ nodes_clear(node_online_map);
+
+ if (system_ram->sibling)
+ printk(KERN_WARNING "Only using first memory bank\n");
+
+ for (res = system_ram; res; res = NULL) {
+ first_pfn = PFN_UP(res->start);
+ max_low_pfn = max_pfn = PFN_DOWN(res->end + 1);
+ bootmap_pfn = find_bootmap_pfn(res);
+ if (bootmap_pfn > max_pfn)
+ panic("No space for bootmem bitmap!\n");
+
+ if (max_low_pfn > MAX_LOWMEM_PFN) {
+ max_low_pfn = MAX_LOWMEM_PFN;
+#ifndef CONFIG_HIGHMEM
+ /*
+ * Lowmem is memory that can be addressed
+ * directly through P1/P2
+ */
+ printk(KERN_WARNING
+ "Node %u: Only %ld MiB of memory will be used.\n",
+ node, MAX_LOWMEM >> 20);
+ printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n");
+#else
+#error HIGHMEM is not supported by AVR32 yet
+#endif
+ }
+
+ /* Initialize the boot-time allocator with low memory only. */
+ bootmap_size = init_bootmem_node(NODE_DATA(node), bootmap_pfn,
+ first_pfn, max_low_pfn);
+
+ /*
+ * Register fully available RAM pages with the bootmem
+ * allocator.
+ */
+ pages = max_low_pfn - first_pfn;
+ free_bootmem_node (NODE_DATA(node), PFN_PHYS(first_pfn),
+ PFN_PHYS(pages));
+
+ /* Reserve space for the bootmem bitmap... */
+ reserve_bootmem_node(NODE_DATA(node),
+ PFN_PHYS(bootmap_pfn),
+ bootmap_size);
+
+ /* ...and any other reserved regions. */
+ for (res = reserved; res; res = res->sibling) {
+ if (res->start > PFN_PHYS(max_pfn))
+ break;
+
+ /*
+ * resource_init will complain about partial
+ * overlaps, so we'll just ignore such
+ * resources for now.
+ */
+ if (res->start >= PFN_PHYS(first_pfn)
+ && res->end < PFN_PHYS(max_pfn))
+ reserve_bootmem_node(
+ NODE_DATA(node), res->start,
+ res->end - res->start + 1);
+ }
+
+ node_set_online(node);
+ }
+}
+
void __init setup_arch (char **cmdline_p)
{
struct clk *cpu_clk;
+ init_mm.start_code = (unsigned long)_text;
+ init_mm.end_code = (unsigned long)_etext;
+ init_mm.end_data = (unsigned long)_edata;
+ init_mm.brk = (unsigned long)_end;
+
+ /*
+ * Include .init section to make allocations easier. It will
+ * be removed before the resource is actually requested.
+ */
+ kernel_code.start = __pa(__init_begin);
+ kernel_code.end = __pa(init_mm.end_code - 1);
+ kernel_data.start = __pa(init_mm.end_code);
+ kernel_data.end = __pa(init_mm.brk - 1);
+
parse_tags(bootloader_tags);
setup_processor();
((cpu_hz + 500) / 1000) % 1000);
}
- init_mm.start_code = (unsigned long) &_text;
- init_mm.end_code = (unsigned long) &_etext;
- init_mm.end_data = (unsigned long) &_edata;
- init_mm.brk = (unsigned long) &_end;
-
strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
*cmdline_p = command_line;
parse_early_param();
setup_bootmem();
- board_setup_fbmem(fbmem_start, fbmem_size);
-
#ifdef CONFIG_VT
conswitchp = &dummy_con;
#endif
paging_init();
-
resource_init();
}
/*
- * Copyright (C) 2004-2006 Atmel Corporation
+ * Copyright (C) 2004-2007 Atmel Corporation
*
* Based on MIPS implementation arch/mips/kernel/time.c
* Copyright 2001 MontaVista Software Inc.
#include <linux/init.h>
#include <linux/profile.h>
#include <linux/sysdev.h>
+#include <linux/err.h>
#include <asm/div64.h>
#include <asm/sysreg.h>
#include <asm/io.h>
#include <asm/sections.h>
-static cycle_t read_cycle_count(void)
+/* how many counter cycles in a jiffy? */
+static u32 cycles_per_jiffy;
+
+/* the count value for the next timer interrupt */
+static u32 expirelo;
+
+cycle_t __weak read_cycle_count(void)
{
return (cycle_t)sysreg_read(COUNT);
}
-static struct clocksource clocksource_avr32 = {
+struct clocksource __weak clocksource_avr32 = {
.name = "avr32",
.rating = 350,
.read = read_cycle_count,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
+irqreturn_t __weak timer_interrupt(int irq, void *dev_id);
+
+struct irqaction timer_irqaction = {
+ .handler = timer_interrupt,
+ .flags = IRQF_DISABLED,
+ .name = "timer",
+};
+
/*
* By default we provide the null RTC ops
*/
static unsigned long null_rtc_get_time(void)
{
- return mktime(2004, 1, 1, 0, 0, 0);
+ return mktime(2007, 1, 1, 0, 0, 0);
}
static int null_rtc_set_time(unsigned long sec)
static unsigned long (*rtc_get_time)(void) = null_rtc_get_time;
static int (*rtc_set_time)(unsigned long) = null_rtc_set_time;
-/* how many counter cycles in a jiffy? */
-static unsigned long cycles_per_jiffy;
-
-/* cycle counter value at the previous timer interrupt */
-static unsigned int timerhi, timerlo;
-
-/* the count value for the next timer interrupt */
-static unsigned int expirelo;
-
static void avr32_timer_ack(void)
{
- unsigned int count;
+ u32 count;
/* Ack this timer interrupt and set the next one */
expirelo += cycles_per_jiffy;
+ /* setting COMPARE to 0 stops the COUNT-COMPARE */
if (expirelo == 0) {
- printk(KERN_DEBUG "expirelo == 0\n");
sysreg_write(COMPARE, expirelo + 1);
} else {
sysreg_write(COMPARE, expirelo);
}
}
-static unsigned int avr32_hpt_read(void)
+int __weak avr32_hpt_init(void)
{
- return sysreg_read(COUNT);
+ int ret;
+ unsigned long mult, shift, count_hz;
+
+ count_hz = clk_get_rate(boot_cpu_data.clk);
+ shift = clocksource_avr32.shift;
+ mult = clocksource_hz2mult(count_hz, shift);
+ clocksource_avr32.mult = mult;
+
+ {
+ u64 tmp;
+
+ tmp = TICK_NSEC;
+ tmp <<= shift;
+ tmp += mult / 2;
+ do_div(tmp, mult);
+
+ cycles_per_jiffy = tmp;
+ }
+
+ ret = setup_irq(0, &timer_irqaction);
+ if (ret) {
+ pr_debug("timer: could not request IRQ 0: %d\n", ret);
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "timer: AT32AP COUNT-COMPARE at irq 0, "
+ "%lu.%03lu MHz\n",
+ ((count_hz + 500) / 1000) / 1000,
+ ((count_hz + 500) / 1000) % 1000);
+
+ return 0;
}
/*
* Taken from MIPS c0_hpt_timer_init().
*
- * Why is it so complicated, and what is "count"? My assumption is
- * that `count' specifies the "reference cycle", i.e. the cycle since
- * reset that should mean "zero". The reason COUNT is written twice is
- * probably to make sure we don't get any timer interrupts while we
- * are messing with the counter.
+ * The reason COUNT is written twice is probably to make sure we don't get any
+ * timer interrupts while we are messing with the counter.
*/
-static void avr32_hpt_init(unsigned int count)
+int __weak avr32_hpt_start(void)
{
- count = sysreg_read(COUNT) - count;
+ u32 count = sysreg_read(COUNT);
expirelo = (count / cycles_per_jiffy + 1) * cycles_per_jiffy;
sysreg_write(COUNT, expirelo - cycles_per_jiffy);
sysreg_write(COMPARE, expirelo);
sysreg_write(COUNT, count);
+
+ return 0;
}
/*
*
* In UP mode, it is invoked from the (global) timer_interrupt.
*/
-static void local_timer_interrupt(int irq, void *dev_id)
+void local_timer_interrupt(int irq, void *dev_id)
{
if (current->pid)
profile_tick(CPU_PROFILING);
update_process_times(user_mode(get_irq_regs()));
}
-static irqreturn_t
-timer_interrupt(int irq, void *dev_id)
+irqreturn_t __weak timer_interrupt(int irq, void *dev_id)
{
- unsigned int count;
-
/* ack timer interrupt and try to set next interrupt */
- count = avr32_hpt_read();
avr32_timer_ack();
- /* Update timerhi/timerlo for intra-jiffy calibration */
- timerhi += count < timerlo; /* Wrap around */
- timerlo = count;
-
/*
* Call the generic timer interrupt handler
*/
return IRQ_HANDLED;
}
-static struct irqaction timer_irqaction = {
- .handler = timer_interrupt,
- .flags = IRQF_DISABLED,
- .name = "timer",
-};
-
void __init time_init(void)
{
- unsigned long mult, shift, count_hz;
int ret;
+ /*
+ * Make sure we don't get any COMPARE interrupts before we can
+ * handle them.
+ */
+ sysreg_write(COMPARE, 0);
+
xtime.tv_sec = rtc_get_time();
xtime.tv_nsec = 0;
set_normalized_timespec(&wall_to_monotonic,
-xtime.tv_sec, -xtime.tv_nsec);
- printk("Before time_init: count=%08lx, compare=%08lx\n",
- (unsigned long)sysreg_read(COUNT),
- (unsigned long)sysreg_read(COMPARE));
-
- count_hz = clk_get_rate(boot_cpu_data.clk);
- shift = clocksource_avr32.shift;
- mult = clocksource_hz2mult(count_hz, shift);
- clocksource_avr32.mult = mult;
-
- printk("Cycle counter: mult=%lu, shift=%lu\n", mult, shift);
-
- {
- u64 tmp;
-
- tmp = TICK_NSEC;
- tmp <<= shift;
- tmp += mult / 2;
- do_div(tmp, mult);
-
- cycles_per_jiffy = tmp;
+ ret = avr32_hpt_init();
+ if (ret) {
+ pr_debug("timer: failed setup: %d\n", ret);
+ return;
}
- /* This sets up the high precision timer for the first interrupt. */
- avr32_hpt_init(avr32_hpt_read());
-
- printk("After time_init: count=%08lx, compare=%08lx\n",
- (unsigned long)sysreg_read(COUNT),
- (unsigned long)sysreg_read(COMPARE));
-
ret = clocksource_register(&clocksource_avr32);
if (ret)
- printk(KERN_ERR
- "timer: could not register clocksource: %d\n", ret);
+ pr_debug("timer: could not register clocksource: %d\n", ret);
- ret = setup_irq(0, &timer_irqaction);
- if (ret)
- printk("timer: could not request IRQ 0: %d\n", ret);
+ ret = avr32_hpt_start();
+ if (ret) {
+ pr_debug("timer: failed starting: %d\n", ret);
+ return;
+ }
}
static struct sysdev_class timer_class = {
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#undef DEBUG
-#include <linux/sched.h>
+
+#include <linux/bug.h>
#include <linux/init.h>
-#include <linux/module.h>
#include <linux/kallsyms.h>
+#include <linux/module.h>
#include <linux/notifier.h>
+#include <linux/sched.h>
+#include <linux/uaccess.h>
-#include <asm/traps.h>
-#include <asm/sysreg.h>
#include <asm/addrspace.h>
-#include <asm/ocd.h>
#include <asm/mmu_context.h>
-#include <asm/uaccess.h>
-
-static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
-{
- unsigned long p;
- int i;
-
- printk("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
-
- for (p = bottom & ~31; p < top; ) {
- printk("%04lx: ", p & 0xffff);
-
- for (i = 0; i < 8; i++, p += 4) {
- unsigned int val;
-
- if (p < bottom || p >= top)
- printk(" ");
- else {
- if (__get_user(val, (unsigned int __user *)p)) {
- printk("\n");
- goto out;
- }
- printk("%08x ", val);
- }
- }
- printk("\n");
- }
-
-out:
- return;
-}
-
-static inline int valid_stack_ptr(struct thread_info *tinfo, unsigned long p)
-{
- return (p > (unsigned long)tinfo)
- && (p < (unsigned long)tinfo + THREAD_SIZE - 3);
-}
-
-#ifdef CONFIG_FRAME_POINTER
-static inline void __show_trace(struct task_struct *tsk, unsigned long *sp,
- struct pt_regs *regs)
-{
- unsigned long lr, fp;
- struct thread_info *tinfo;
-
- tinfo = (struct thread_info *)
- ((unsigned long)sp & ~(THREAD_SIZE - 1));
-
- if (regs)
- fp = regs->r7;
- else if (tsk == current)
- asm("mov %0, r7" : "=r"(fp));
- else
- fp = tsk->thread.cpu_context.r7;
-
- /*
- * Walk the stack as long as the frame pointer (a) is within
- * the kernel stack of the task, and (b) it doesn't move
- * downwards.
- */
- while (valid_stack_ptr(tinfo, fp)) {
- unsigned long new_fp;
-
- lr = *(unsigned long *)fp;
- printk(" [<%08lx>] ", lr);
- print_symbol("%s\n", lr);
-
- new_fp = *(unsigned long *)(fp + 4);
- if (new_fp <= fp)
- break;
- fp = new_fp;
- }
- printk("\n");
-}
-#else
-static inline void __show_trace(struct task_struct *tsk, unsigned long *sp,
- struct pt_regs *regs)
-{
- unsigned long addr;
-
- while (!kstack_end(sp)) {
- addr = *sp++;
- if (kernel_text_address(addr)) {
- printk(" [<%08lx>] ", addr);
- print_symbol("%s\n", addr);
- }
- }
-}
-#endif
-
-void show_trace(struct task_struct *tsk, unsigned long *sp,
- struct pt_regs *regs)
-{
- if (regs &&
- (((regs->sr & MODE_MASK) == MODE_EXCEPTION) ||
- ((regs->sr & MODE_MASK) == MODE_USER)))
- return;
-
- printk ("Call trace:");
-#ifdef CONFIG_KALLSYMS
- printk("\n");
-#endif
-
- __show_trace(tsk, sp, regs);
- printk("\n");
-}
-
-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
- unsigned long stack;
-
- if (!tsk)
- tsk = current;
- if (sp == 0) {
- if (tsk == current) {
- register unsigned long *real_sp __asm__("sp");
- sp = real_sp;
- } else {
- sp = (unsigned long *)tsk->thread.cpu_context.ksp;
- }
- }
-
- stack = (unsigned long)sp;
- dump_mem("Stack: ", stack,
- THREAD_SIZE + (unsigned long)tsk->thread_info);
- show_trace(tsk, sp, NULL);
-}
-
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
+#include <asm/ocd.h>
+#include <asm/sysreg.h>
+#include <asm/traps.h>
ATOMIC_NOTIFIER_HEAD(avr32_die_chain);
int register_die_notifier(struct notifier_block *nb)
{
- pr_debug("register_die_notifier: %p\n", nb);
-
return atomic_notifier_chain_register(&avr32_die_chain, nb);
}
EXPORT_SYMBOL(register_die_notifier);
static DEFINE_SPINLOCK(die_lock);
-void __die(const char *str, struct pt_regs *regs, unsigned long err,
- const char *file, const char *func, unsigned long line)
+void NORET_TYPE die(const char *str, struct pt_regs *regs, long err)
{
- struct task_struct *tsk = current;
static int die_counter;
console_verbose();
spin_lock_irq(&die_lock);
bust_spinlocks(1);
- printk(KERN_ALERT "%s", str);
- if (file && func)
- printk(" in %s:%s, line %ld", file, func, line);
- printk("[#%d]:\n", ++die_counter);
- print_modules();
- show_regs(regs);
- printk("Process %s (pid: %d, stack limit = 0x%p)\n",
- tsk->comm, tsk->pid, tsk->thread_info + 1);
-
- if (!user_mode(regs) || in_interrupt()) {
- dump_mem("Stack: ", regs->sp,
- THREAD_SIZE + (unsigned long)tsk->thread_info);
+ printk(KERN_ALERT "Oops: %s, sig: %ld [#%d]\n" KERN_EMERG,
+ str, err, ++die_counter);
+#ifdef CONFIG_PREEMPT
+ printk("PREEMPT ");
+#endif
+#ifdef CONFIG_FRAME_POINTER
+ printk("FRAME_POINTER ");
+#endif
+ if (current_cpu_data.features & AVR32_FEATURE_OCD) {
+ unsigned long did = __mfdr(DBGREG_DID);
+ printk("chip: 0x%03lx:0x%04lx rev %lu\n",
+ (did >> 1) & 0x7ff,
+ (did >> 12) & 0x7fff,
+ (did >> 28) & 0xf);
+ } else {
+ printk("cpu: arch %u r%u / core %u r%u\n",
+ current_cpu_data.arch_type,
+ current_cpu_data.arch_revision,
+ current_cpu_data.cpu_type,
+ current_cpu_data.cpu_revision);
}
+ print_modules();
+ show_regs_log_lvl(regs, KERN_EMERG);
+ show_stack_log_lvl(current, regs->sp, regs, KERN_EMERG);
bust_spinlocks(0);
spin_unlock_irq(&die_lock);
- do_exit(SIGSEGV);
+
+ if (in_interrupt())
+ panic("Fatal exception in interrupt");
+
+ if (panic_on_oops)
+ panic("Fatal exception");
+
+ do_exit(err);
}
-void __die_if_kernel(const char *str, struct pt_regs *regs, unsigned long err,
- const char *file, const char *func, unsigned long line)
+void _exception(long signr, struct pt_regs *regs, int code,
+ unsigned long addr)
{
+ siginfo_t info;
+
if (!user_mode(regs))
- __die(str, regs, err, file, func, line);
-}
+ die("Unhandled exception in kernel mode", regs, signr);
+
+ memset(&info, 0, sizeof(info));
+ info.si_signo = signr;
+ info.si_code = code;
+ info.si_addr = (void __user *)addr;
+ force_sig_info(signr, &info, current);
-asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
-{
-#ifdef CONFIG_SUBARCH_AVR32B
/*
- * The exception entry always saves RSR_EX. For NMI, this is
- * wrong; it should be RSR_NMI
+ * Init gets no signals that it doesn't have a handler for.
+ * That's all very well, but if it has caused a synchronous
+ * exception and we ignore the resulting signal, it will just
+ * generate the same exception over and over again and we get
+ * nowhere. Better to kill it and let the kernel panic.
*/
- regs->sr = sysreg_read(RSR_NMI);
-#endif
+ if (is_init(current)) {
+ __sighandler_t handler;
+
+ spin_lock_irq(¤t->sighand->siglock);
+ handler = current->sighand->action[signr-1].sa.sa_handler;
+ spin_unlock_irq(¤t->sighand->siglock);
+ if (handler == SIG_DFL) {
+ /* init has generated a synchronous exception
+ and it doesn't have a handler for the signal */
+ printk(KERN_CRIT "init has generated signal %ld "
+ "but has no handler for it\n", signr);
+ do_exit(signr);
+ }
+ }
+}
- printk("NMI taken!!!!\n");
- die("NMI", regs, ecr);
- BUG();
+asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
+{
+ printk(KERN_ALERT "Got Non-Maskable Interrupt, dumping regs\n");
+ show_regs_log_lvl(regs, KERN_ALERT);
+ show_stack_log_lvl(current, regs->sp, regs, KERN_ALERT);
}
asmlinkage void do_critical_exception(unsigned long ecr, struct pt_regs *regs)
{
- printk("Unable to handle critical exception %lu at pc = %08lx!\n",
- ecr, regs->pc);
- die("Oops", regs, ecr);
- BUG();
+ die("Critical exception", regs, SIGKILL);
}
asmlinkage void do_address_exception(unsigned long ecr, struct pt_regs *regs)
{
- siginfo_t info;
-
- die_if_kernel("Oops: Address exception in kernel mode", regs, ecr);
-
-#ifdef DEBUG
- if (ecr == ECR_ADDR_ALIGN_X)
- pr_debug("Instruction Address Exception at pc = %08lx\n",
- regs->pc);
- else if (ecr == ECR_ADDR_ALIGN_R)
- pr_debug("Data Address Exception (Read) at pc = %08lx\n",
- regs->pc);
- else if (ecr == ECR_ADDR_ALIGN_W)
- pr_debug("Data Address Exception (Write) at pc = %08lx\n",
- regs->pc);
- else
- BUG();
-
- show_regs(regs);
-#endif
-
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_ADRALN;
- info.si_addr = (void __user *)regs->pc;
-
- force_sig_info(SIGBUS, &info, current);
+ _exception(SIGBUS, regs, BUS_ADRALN, regs->pc);
}
/* This way of handling undefined instructions is stolen from ARM */
{
int cop_nr;
u32 cpucr;
- if ( (insn & 0xfdf00000) == 0xf1900000 )
+
+ if ((insn & 0xfdf00000) == 0xf1900000)
/* LDC0 */
cop_nr = 0;
else
sysreg_write(CPUCR, cpucr);
cpucr = sysreg_read(CPUCR);
- if ( !(cpucr & (1 << (24 + cop_nr))) ){
- printk("Coprocessor #%i not found!\n", cop_nr);
- return -1;
- }
+ if (!(cpucr & (1 << (24 + cop_nr))))
+ return -ENODEV;
return 0;
}
-#ifdef CONFIG_BUG
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-static inline void do_bug_verbose(struct pt_regs *regs, u32 insn)
-{
- char *file;
- u16 line;
- char c;
-
- if (__get_user(line, (u16 __user *)(regs->pc + 2)))
- return;
- if (__get_user(file, (char * __user *)(regs->pc + 4))
- || (unsigned long)file < PAGE_OFFSET
- || __get_user(c, file))
- file = "<bad filename>";
-
- printk(KERN_ALERT "kernel BUG at %s:%d!\n", file, line);
-}
-#else
-static inline void do_bug_verbose(struct pt_regs *regs, u32 insn)
+int is_valid_bugaddr(unsigned long pc)
{
+ unsigned short opcode;
+
+ if (pc < PAGE_OFFSET)
+ return 0;
+ if (probe_kernel_address((u16 *)pc, opcode))
+ return 0;
+ return opcode == AVR32_BUG_OPCODE;
}
-#endif
-#endif
asmlinkage void do_illegal_opcode(unsigned long ecr, struct pt_regs *regs)
{
u32 insn;
struct undef_hook *hook;
- siginfo_t info;
void __user *pc;
+ long code;
- if (!user_mode(regs))
- goto kernel_trap;
+ if (!user_mode(regs) && (ecr == ECR_ILLEGAL_OPCODE)) {
+ enum bug_trap_type type;
+
+ type = report_bug(regs->pc);
+ switch (type) {
+ case BUG_TRAP_TYPE_NONE:
+ break;
+ case BUG_TRAP_TYPE_WARN:
+ regs->pc += 2;
+ return;
+ case BUG_TRAP_TYPE_BUG:
+ die("Kernel BUG", regs, SIGKILL);
+ }
+ }
local_irq_enable();
- pc = (void __user *)instruction_pointer(regs);
- if (__get_user(insn, (u32 __user *)pc))
- goto invalid_area;
+ if (user_mode(regs)) {
+ pc = (void __user *)instruction_pointer(regs);
+ if (get_user(insn, (u32 __user *)pc))
+ goto invalid_area;
- if (ecr == ECR_COPROC_ABSENT) {
- if (do_cop_absent(insn) == 0)
+ if (ecr == ECR_COPROC_ABSENT && !do_cop_absent(insn))
return;
- }
- spin_lock_irq(&undef_lock);
- list_for_each_entry(hook, &undef_hook, node) {
- if ((insn & hook->insn_mask) == hook->insn_val) {
- if (hook->fn(regs, insn) == 0) {
- spin_unlock_irq(&undef_lock);
- return;
+ spin_lock_irq(&undef_lock);
+ list_for_each_entry(hook, &undef_hook, node) {
+ if ((insn & hook->insn_mask) == hook->insn_val) {
+ if (hook->fn(regs, insn) == 0) {
+ spin_unlock_irq(&undef_lock);
+ return;
+ }
}
}
+ spin_unlock_irq(&undef_lock);
}
- spin_unlock_irq(&undef_lock);
-
-invalid_area:
-#ifdef DEBUG
- printk("Illegal instruction at pc = %08lx\n", regs->pc);
- if (regs->pc < TASK_SIZE) {
- unsigned long ptbr, pgd, pte, *p;
-
- ptbr = sysreg_read(PTBR);
- p = (unsigned long *)ptbr;
- pgd = p[regs->pc >> 22];
- p = (unsigned long *)((pgd & 0x1ffff000) | 0x80000000);
- pte = p[(regs->pc >> 12) & 0x3ff];
- printk("page table: 0x%08lx -> 0x%08lx -> 0x%08lx\n", ptbr, pgd, pte);
- }
-#endif
-
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_addr = (void __user *)regs->pc;
switch (ecr) {
- case ECR_ILLEGAL_OPCODE:
- case ECR_UNIMPL_INSTRUCTION:
- info.si_code = ILL_ILLOPC;
- break;
case ECR_PRIVILEGE_VIOLATION:
- info.si_code = ILL_PRVOPC;
+ code = ILL_PRVOPC;
break;
case ECR_COPROC_ABSENT:
- info.si_code = ILL_COPROC;
+ code = ILL_COPROC;
break;
default:
- BUG();
+ code = ILL_ILLOPC;
+ break;
}
- force_sig_info(SIGILL, &info, current);
+ _exception(SIGILL, regs, code, regs->pc);
return;
-kernel_trap:
-#ifdef CONFIG_BUG
- if (__kernel_text_address(instruction_pointer(regs))) {
- insn = *(u16 *)instruction_pointer(regs);
- if (insn == AVR32_BUG_OPCODE) {
- do_bug_verbose(regs, insn);
- die("Kernel BUG", regs, 0);
- return;
- }
- }
-#endif
-
- die("Oops: Illegal instruction in kernel code", regs, ecr);
+invalid_area:
+ _exception(SIGSEGV, regs, SEGV_MAPERR, regs->pc);
}
asmlinkage void do_fpe(unsigned long ecr, struct pt_regs *regs)
{
- siginfo_t info;
-
- printk("Floating-point exception at pc = %08lx\n", regs->pc);
-
- /* We have no FPU... */
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_addr = (void __user *)regs->pc;
- info.si_code = ILL_COPROC;
-
- force_sig_info(SIGILL, &info, current);
+ /* We have no FPU yet */
+ _exception(SIGILL, regs, ILL_COPROC, regs->pc);
}
_sinittext = .;
*(.text.reset)
*(.init.text)
+ /*
+ * .exit.text is discarded at runtime, not
+ * link time, to deal with references from
+ * __bug_table
+ */
+ *(.exit.text)
_einittext = .;
. = ALIGN(4);
__tagtable_begin = .;
__stop___ex_table = .;
}
+ BUG_TABLE
+
RODATA
. = ALIGN(8192);
* thrown away, as cleanup code is never called unless it's a module.
*/
/DISCARD/ : {
- *(.exit.text)
*(.exit.data)
*(.exitcall.exit)
}
--- /dev/null
+if PLATFORM_AT32AP
+
+menu "Atmel AVR32 AP options"
+
+choice
+ prompt "AT32AP7000 static memory bus width"
+ depends on CPU_AT32AP7000
+ default AP7000_16_BIT_SMC
+ help
+ Define the width of the AP7000 external static memory interface.
+ This is used to determine how to mangle the address and/or data
+ when doing little-endian port access.
+
+ The current code can only support a single external memory bus
+ width for all chip selects, excluding the flash (which is using
+ raw access and is thus not affected by any of this.)
+
+config AP7000_32_BIT_SMC
+ bool "32 bit"
+
+config AP7000_16_BIT_SMC
+ bool "16 bit"
+
+config AP7000_8_BIT_SMC
+ bool "8 bit"
+
+endchoice
+
+endmenu
+
+endif # PLATFORM_AT32AP
obj-y += at32ap.o clock.o intc.o extint.o pio.o hsmc.o
obj-$(CONFIG_CPU_AT32AP7000) += at32ap7000.o
+obj-$(CONFIG_CPU_AT32AP7000) += time-tc.o
#include <asm/arch/sm.h>
#include "clock.h"
+#include "hmatrix.h"
#include "pio.h"
#include "sm.h"
.resource = sm_resource,
.num_resources = ARRAY_SIZE(sm_resource),
};
-DEV_CLK(pclk, at32_sm, pbb, 0);
+static struct clk at32_sm_pclk = {
+ .name = "pclk",
+ .dev = &at32_sm_device.dev,
+ .parent = &pbb_clk,
+ .mode = pbb_clk_mode,
+ .get_rate = pbb_clk_get_rate,
+ .users = 1,
+ .index = 0,
+};
static struct resource intc0_resource[] = {
PBMEM(0xfff00400),
.mode = hsb_clk_mode,
.get_rate = hsb_clk_get_rate,
.users = 1,
+ .index = 3,
};
static struct resource smc0_resource[] = {
.users = 1,
};
+/* --------------------------------------------------------------------
+ * HMATRIX
+ * -------------------------------------------------------------------- */
+
+static struct clk hmatrix_clk = {
+ .name = "hmatrix_clk",
+ .parent = &pbb_clk,
+ .mode = pbb_clk_mode,
+ .get_rate = pbb_clk_get_rate,
+ .index = 2,
+ .users = 1,
+};
+#define HMATRIX_BASE ((void __iomem *)0xfff00800)
+
+#define hmatrix_readl(reg) \
+ __raw_readl((HMATRIX_BASE) + HMATRIX_##reg)
+#define hmatrix_writel(reg,value) \
+ __raw_writel((value), (HMATRIX_BASE) + HMATRIX_##reg)
+
+/*
+ * Set bits in the HMATRIX Special Function Register (SFR) used by the
+ * External Bus Interface (EBI). This can be used to enable special
+ * features like CompactFlash support, NAND Flash support, etc. on
+ * certain chipselects.
+ */
+static inline void set_ebi_sfr_bits(u32 mask)
+{
+ u32 sfr;
+
+ clk_enable(&hmatrix_clk);
+ sfr = hmatrix_readl(SFR4);
+ sfr |= mask;
+ hmatrix_writel(SFR4, sfr);
+ clk_disable(&hmatrix_clk);
+}
+
+/* --------------------------------------------------------------------
+ * System Timer/Counter (TC)
+ * -------------------------------------------------------------------- */
+static struct resource at32_systc0_resource[] = {
+ PBMEM(0xfff00c00),
+ IRQ(22),
+};
+struct platform_device at32_systc0_device = {
+ .name = "systc",
+ .id = 0,
+ .resource = at32_systc0_resource,
+ .num_resources = ARRAY_SIZE(at32_systc0_resource),
+};
+DEV_CLK(pclk, at32_systc0, pbb, 3);
+
/* --------------------------------------------------------------------
* PIO
* -------------------------------------------------------------------- */
platform_device_register(&smc0_device);
platform_device_register(&pdc_device);
+ platform_device_register(&at32_systc0_device);
+
platform_device_register(&pio0_device);
platform_device_register(&pio1_device);
platform_device_register(&pio2_device);
&pbb_clk,
&at32_sm_pclk,
&at32_intc0_pclk,
+ &hmatrix_clk,
&ebi_clk,
&hramc_clk,
&smc0_pclk,
&pio2_mck,
&pio3_mck,
&pio4_mck,
+ &at32_systc0_pclk,
&atmel_usart0_usart,
&atmel_usart1_usart,
&atmel_usart2_usart,
for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
struct clk *clk = at32_clock_list[i];
+ if (clk->users == 0)
+ continue;
+
if (clk->mode == &cpu_clk_mode)
cpu_mask |= 1 << clk->index;
else if (clk->mode == &hsb_clk_mode)
--- /dev/null
+/*
+ * Register definitions for High-Speed Bus Matrix
+ */
+#ifndef __HMATRIX_H
+#define __HMATRIX_H
+
+/* HMATRIX register offsets */
+#define HMATRIX_MCFG0 0x0000
+#define HMATRIX_MCFG1 0x0004
+#define HMATRIX_MCFG2 0x0008
+#define HMATRIX_MCFG3 0x000c
+#define HMATRIX_MCFG4 0x0010
+#define HMATRIX_MCFG5 0x0014
+#define HMATRIX_MCFG6 0x0018
+#define HMATRIX_MCFG7 0x001c
+#define HMATRIX_MCFG8 0x0020
+#define HMATRIX_MCFG9 0x0024
+#define HMATRIX_MCFG10 0x0028
+#define HMATRIX_MCFG11 0x002c
+#define HMATRIX_MCFG12 0x0030
+#define HMATRIX_MCFG13 0x0034
+#define HMATRIX_MCFG14 0x0038
+#define HMATRIX_MCFG15 0x003c
+#define HMATRIX_SCFG0 0x0040
+#define HMATRIX_SCFG1 0x0044
+#define HMATRIX_SCFG2 0x0048
+#define HMATRIX_SCFG3 0x004c
+#define HMATRIX_SCFG4 0x0050
+#define HMATRIX_SCFG5 0x0054
+#define HMATRIX_SCFG6 0x0058
+#define HMATRIX_SCFG7 0x005c
+#define HMATRIX_SCFG8 0x0060
+#define HMATRIX_SCFG9 0x0064
+#define HMATRIX_SCFG10 0x0068
+#define HMATRIX_SCFG11 0x006c
+#define HMATRIX_SCFG12 0x0070
+#define HMATRIX_SCFG13 0x0074
+#define HMATRIX_SCFG14 0x0078
+#define HMATRIX_SCFG15 0x007c
+#define HMATRIX_PRAS0 0x0080
+#define HMATRIX_PRBS0 0x0084
+#define HMATRIX_PRAS1 0x0088
+#define HMATRIX_PRBS1 0x008c
+#define HMATRIX_PRAS2 0x0090
+#define HMATRIX_PRBS2 0x0094
+#define HMATRIX_PRAS3 0x0098
+#define HMATRIX_PRBS3 0x009c
+#define HMATRIX_PRAS4 0x00a0
+#define HMATRIX_PRBS4 0x00a4
+#define HMATRIX_PRAS5 0x00a8
+#define HMATRIX_PRBS5 0x00ac
+#define HMATRIX_PRAS6 0x00b0
+#define HMATRIX_PRBS6 0x00b4
+#define HMATRIX_PRAS7 0x00b8
+#define HMATRIX_PRBS7 0x00bc
+#define HMATRIX_PRAS8 0x00c0
+#define HMATRIX_PRBS8 0x00c4
+#define HMATRIX_PRAS9 0x00c8
+#define HMATRIX_PRBS9 0x00cc
+#define HMATRIX_PRAS10 0x00d0
+#define HMATRIX_PRBS10 0x00d4
+#define HMATRIX_PRAS11 0x00d8
+#define HMATRIX_PRBS11 0x00dc
+#define HMATRIX_PRAS12 0x00e0
+#define HMATRIX_PRBS12 0x00e4
+#define HMATRIX_PRAS13 0x00e8
+#define HMATRIX_PRBS13 0x00ec
+#define HMATRIX_PRAS14 0x00f0
+#define HMATRIX_PRBS14 0x00f4
+#define HMATRIX_PRAS15 0x00f8
+#define HMATRIX_PRBS15 0x00fc
+#define HMATRIX_MRCR 0x0100
+#define HMATRIX_SFR0 0x0110
+#define HMATRIX_SFR1 0x0114
+#define HMATRIX_SFR2 0x0118
+#define HMATRIX_SFR3 0x011c
+#define HMATRIX_SFR4 0x0120
+#define HMATRIX_SFR5 0x0124
+#define HMATRIX_SFR6 0x0128
+#define HMATRIX_SFR7 0x012c
+#define HMATRIX_SFR8 0x0130
+#define HMATRIX_SFR9 0x0134
+#define HMATRIX_SFR10 0x0138
+#define HMATRIX_SFR11 0x013c
+#define HMATRIX_SFR12 0x0140
+#define HMATRIX_SFR13 0x0144
+#define HMATRIX_SFR14 0x0148
+#define HMATRIX_SFR15 0x014c
+
+/* Bitfields in MCFGx */
+#define HMATRIX_ULBT_OFFSET 0
+#define HMATRIX_ULBT_SIZE 3
+
+/* Bitfields in SCFGx */
+#define HMATRIX_SLOT_CYCLE_OFFSET 0
+#define HMATRIX_SLOT_CYCLE_SIZE 8
+#define HMATRIX_DEFMSTR_TYPE_OFFSET 16
+#define HMATRIX_DEFMSTR_TYPE_SIZE 2
+#define HMATRIX_FIXED_DEFMSTR_OFFSET 18
+#define HMATRIX_FIXED_DEFMSTR_SIZE 4
+#define HMATRIX_ARBT_OFFSET 24
+#define HMATRIX_ARBT_SIZE 2
+
+/* Bitfields in PRASx */
+#define HMATRIX_M0PR_OFFSET 0
+#define HMATRIX_M0PR_SIZE 4
+#define HMATRIX_M1PR_OFFSET 4
+#define HMATRIX_M1PR_SIZE 4
+#define HMATRIX_M2PR_OFFSET 8
+#define HMATRIX_M2PR_SIZE 4
+#define HMATRIX_M3PR_OFFSET 12
+#define HMATRIX_M3PR_SIZE 4
+#define HMATRIX_M4PR_OFFSET 16
+#define HMATRIX_M4PR_SIZE 4
+#define HMATRIX_M5PR_OFFSET 20
+#define HMATRIX_M5PR_SIZE 4
+#define HMATRIX_M6PR_OFFSET 24
+#define HMATRIX_M6PR_SIZE 4
+#define HMATRIX_M7PR_OFFSET 28
+#define HMATRIX_M7PR_SIZE 4
+
+/* Bitfields in PRBSx */
+#define HMATRIX_M8PR_OFFSET 0
+#define HMATRIX_M8PR_SIZE 4
+#define HMATRIX_M9PR_OFFSET 4
+#define HMATRIX_M9PR_SIZE 4
+#define HMATRIX_M10PR_OFFSET 8
+#define HMATRIX_M10PR_SIZE 4
+#define HMATRIX_M11PR_OFFSET 12
+#define HMATRIX_M11PR_SIZE 4
+#define HMATRIX_M12PR_OFFSET 16
+#define HMATRIX_M12PR_SIZE 4
+#define HMATRIX_M13PR_OFFSET 20
+#define HMATRIX_M13PR_SIZE 4
+#define HMATRIX_M14PR_OFFSET 24
+#define HMATRIX_M14PR_SIZE 4
+#define HMATRIX_M15PR_OFFSET 28
+#define HMATRIX_M15PR_SIZE 4
+
+/* Bitfields in SFR4 */
+#define HMATRIX_CS1A_OFFSET 1
+#define HMATRIX_CS1A_SIZE 1
+#define HMATRIX_CS3A_OFFSET 3
+#define HMATRIX_CS3A_SIZE 1
+#define HMATRIX_CS4A_OFFSET 4
+#define HMATRIX_CS4A_SIZE 1
+#define HMATRIX_CS5A_OFFSET 5
+#define HMATRIX_CS5A_SIZE 1
+#define HMATRIX_DBPUC_OFFSET 8
+#define HMATRIX_DBPUC_SIZE 1
+
+/* Constants for ULBT */
+#define HMATRIX_ULBT_INFINITE 0
+#define HMATRIX_ULBT_SINGLE 1
+#define HMATRIX_ULBT_FOUR_BEAT 2
+#define HMATRIX_ULBT_EIGHT_BEAT 3
+#define HMATRIX_ULBT_SIXTEEN_BEAT 4
+
+/* Constants for DEFMSTR_TYPE */
+#define HMATRIX_DEFMSTR_TYPE_NO_DEFAULT 0
+#define HMATRIX_DEFMSTR_TYPE_LAST_DEFAULT 1
+#define HMATRIX_DEFMSTR_TYPE_FIXED_DEFAULT 2
+
+/* Constants for ARBT */
+#define HMATRIX_ARBT_ROUND_ROBIN 0
+#define HMATRIX_ARBT_FIXED_PRIORITY 1
+
+/* Bit manipulation macros */
+#define HMATRIX_BIT(name) \
+ (1 << HMATRIX_##name##_OFFSET)
+#define HMATRIX_BF(name,value) \
+ (((value) & ((1 << HMATRIX_##name##_SIZE) - 1)) \
+ << HMATRIX_##name##_OFFSET)
+#define HMATRIX_BFEXT(name,value) \
+ (((value) >> HMATRIX_##name##_OFFSET) \
+ & ((1 << HMATRIX_##name##_SIZE) - 1))
+#define HMATRIX_BFINS(name,value,old) \
+ (((old) & ~(((1 << HMATRIX_##name##_SIZE) - 1) \
+ << HMATRIX_##name##_OFFSET)) \
+ | HMATRIX_BF(name,value))
+
+#endif /* __HMATRIX_H */
return -EINVAL;
}
+ switch (config->nwait_mode) {
+ case 0:
+ mode |= HSMC_BF(EXNW_MODE, HSMC_EXNW_MODE_DISABLED);
+ break;
+ case 1:
+ mode |= HSMC_BF(EXNW_MODE, HSMC_EXNW_MODE_RESERVED);
+ break;
+ case 2:
+ mode |= HSMC_BF(EXNW_MODE, HSMC_EXNW_MODE_FROZEN);
+ break;
+ case 3:
+ mode |= HSMC_BF(EXNW_MODE, HSMC_EXNW_MODE_READY);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (config->tdf_cycles) {
+ mode |= HSMC_BF(TDF_CYCLES, config->tdf_cycles);
+ }
+
if (config->nrd_controlled)
mode |= HSMC_BIT(READ_MODE);
if (config->nwe_controlled)
mode |= HSMC_BIT(WRITE_MODE);
if (config->byte_write)
mode |= HSMC_BIT(BAT);
+ if (config->tdf_mode)
+ mode |= HSMC_BIT(TDF_MODE);
pr_debug("smc cs%d: setup/%08x pulse/%08x cycle/%08x mode/%08x\n",
cs, setup, pulse, cycle, mode);
--- /dev/null
+/*
+ * Copyright (C) 2004-2007 Atmel Corporation
+ *
+ * Based on MIPS implementation arch/mips/kernel/time.c
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/clocksource.h>
+#include <linux/time.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/profile.h>
+#include <linux/sysdev.h>
+#include <linux/err.h>
+
+#include <asm/div64.h>
+#include <asm/sysreg.h>
+#include <asm/io.h>
+#include <asm/sections.h>
+
+#include <asm/arch/time.h>
+
+/* how many counter cycles in a jiffy? */
+static u32 cycles_per_jiffy;
+
+/* the count value for the next timer interrupt */
+static u32 expirelo;
+
+/* the I/O registers of the TC module */
+static void __iomem *ioregs;
+
+cycle_t read_cycle_count(void)
+{
+ return (cycle_t)timer_read(ioregs, 0, CV);
+}
+
+struct clocksource clocksource_avr32 = {
+ .name = "avr32",
+ .rating = 342,
+ .read = read_cycle_count,
+ .mask = CLOCKSOURCE_MASK(16),
+ .shift = 16,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static void avr32_timer_ack(void)
+{
+ u16 count = expirelo;
+
+ /* Ack this timer interrupt and set the next one, use a u16
+ * variable so it will wrap around correctly */
+ count += cycles_per_jiffy;
+ expirelo = count;
+ timer_write(ioregs, 0, RC, expirelo);
+
+ /* Check to see if we have missed any timer interrupts */
+ count = timer_read(ioregs, 0, CV);
+ if ((count - expirelo) < 0x7fff) {
+ expirelo = count + cycles_per_jiffy;
+ timer_write(ioregs, 0, RC, expirelo);
+ }
+}
+
+u32 avr32_hpt_read(void)
+{
+ return timer_read(ioregs, 0, CV);
+}
+
+static int avr32_timer_calc_div_and_set_jiffies(struct clk *pclk)
+{
+ unsigned int cycles_max = (clocksource_avr32.mask + 1) / 2;
+ unsigned int divs[] = { 4, 8, 16, 32 };
+ int divs_size = sizeof(divs) / sizeof(*divs);
+ int i = 0;
+ unsigned long count_hz;
+ unsigned long shift;
+ unsigned long mult;
+ int clock_div = -1;
+ u64 tmp;
+
+ shift = clocksource_avr32.shift;
+
+ do {
+ count_hz = clk_get_rate(pclk) / divs[i];
+ mult = clocksource_hz2mult(count_hz, shift);
+ clocksource_avr32.mult = mult;
+
+ tmp = TICK_NSEC;
+ tmp <<= shift;
+ tmp += mult / 2;
+ do_div(tmp, mult);
+
+ cycles_per_jiffy = tmp;
+ } while (cycles_per_jiffy > cycles_max && ++i < divs_size);
+
+ clock_div = i + 1;
+
+ if (clock_div > divs_size) {
+ pr_debug("timer: could not calculate clock divider\n");
+ return -EFAULT;
+ }
+
+ /* Set the clock divider */
+ timer_write(ioregs, 0, CMR, TIMER_BF(CMR_TCCLKS, clock_div));
+
+ return 0;
+}
+
+int avr32_hpt_init(unsigned int count)
+{
+ struct resource *regs;
+ struct clk *pclk;
+ int irq = -1;
+ int ret = 0;
+
+ ret = -ENXIO;
+
+ irq = platform_get_irq(&at32_systc0_device, 0);
+ if (irq < 0) {
+ pr_debug("timer: could not get irq\n");
+ goto out_error;
+ }
+
+ pclk = clk_get(&at32_systc0_device.dev, "pclk");
+ if (IS_ERR(pclk)) {
+ pr_debug("timer: could not get clk: %ld\n", PTR_ERR(pclk));
+ goto out_error;
+ }
+ clk_enable(pclk);
+
+ regs = platform_get_resource(&at32_systc0_device, IORESOURCE_MEM, 0);
+ if (!regs) {
+ pr_debug("timer: could not get resource\n");
+ goto out_error_clk;
+ }
+
+ ioregs = ioremap(regs->start, regs->end - regs->start + 1);
+ if (!ioregs) {
+ pr_debug("timer: could not get ioregs\n");
+ goto out_error_clk;
+ }
+
+ ret = avr32_timer_calc_div_and_set_jiffies(pclk);
+ if (ret)
+ goto out_error_io;
+
+ ret = setup_irq(irq, &timer_irqaction);
+ if (ret) {
+ pr_debug("timer: could not request irq %d: %d\n",
+ irq, ret);
+ goto out_error_io;
+ }
+
+ expirelo = (timer_read(ioregs, 0, CV) / cycles_per_jiffy + 1)
+ * cycles_per_jiffy;
+
+ /* Enable clock and interrupts on RC compare */
+ timer_write(ioregs, 0, CCR, TIMER_BIT(CCR_CLKEN));
+ timer_write(ioregs, 0, IER, TIMER_BIT(IER_CPCS));
+ /* Set cycles to first interrupt */
+ timer_write(ioregs, 0, RC, expirelo);
+
+ printk(KERN_INFO "timer: AT32AP system timer/counter at 0x%p irq %d\n",
+ ioregs, irq);
+
+ return 0;
+
+out_error_io:
+ iounmap(ioregs);
+out_error_clk:
+ clk_put(pclk);
+out_error:
+ return ret;
+}
+
+int avr32_hpt_start(void)
+{
+ timer_write(ioregs, 0, CCR, TIMER_BIT(CCR_SWTRG));
+ return 0;
+}
+
+irqreturn_t timer_interrupt(int irq, void *dev_id)
+{
+ unsigned int sr = timer_read(ioregs, 0, SR);
+
+ if (sr & TIMER_BIT(SR_CPCS)) {
+ /* ack timer interrupt and try to set next interrupt */
+ avr32_timer_ack();
+
+ /*
+ * Call the generic timer interrupt handler
+ */
+ write_seqlock(&xtime_lock);
+ do_timer(1);
+ write_sequnlock(&xtime_lock);
+
+ /*
+ * In UP mode, we call local_timer_interrupt() to do profiling
+ * and process accounting.
+ *
+ * SMP is not supported yet.
+ */
+ local_timer_interrupt(irq, dev_id);
+
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
#include <asm/kdebug.h>
#include <asm/mmu_context.h>
#include <asm/sysreg.h>
-#include <asm/uaccess.h>
#include <asm/tlb.h>
-
-#ifdef DEBUG
-static void dump_code(unsigned long pc)
-{
- char *p = (char *)pc;
- char val;
- int i;
-
-
- printk(KERN_DEBUG "Code:");
- for (i = 0; i < 16; i++) {
- if (__get_user(val, p + i))
- break;
- printk(" %02x", val);
- }
- printk("\n");
-}
-#endif
+#include <asm/uaccess.h>
#ifdef CONFIG_KPROBES
ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
}
#endif
+int exception_trace = 1;
+
/*
* This routine handles page faults. It determines the address and the
* problem, and then passes it off to one of the appropriate routines.
*
* ecr is the Exception Cause Register. Possible values are:
- * 5: Page not found (instruction access)
* 6: Protection fault (instruction access)
- * 12: Page not found (read access)
- * 13: Page not found (write access)
- * 14: Protection fault (read access)
- * 15: Protection fault (write access)
+ * 15: Protection fault (read access)
+ * 16: Protection fault (write access)
+ * 20: Page not found (instruction access)
+ * 24: Page not found (read access)
+ * 28: Page not found (write access)
*/
asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
{
const struct exception_table_entry *fixup;
unsigned long address;
unsigned long page;
- int writeaccess = 0;
+ int writeaccess;
+ long signr;
+ int code;
if (notify_page_fault(DIE_PAGE_FAULT, regs,
ecr, SIGSEGV) == NOTIFY_STOP)
tsk = current;
mm = tsk->mm;
+ signr = SIGSEGV;
+ code = SEGV_MAPERR;
+
/*
* If we're in an interrupt or have no user context, we must
* not take the fault...
* can handle it...
*/
good_area:
- //pr_debug("good area: vm_flags = 0x%lx\n", vma->vm_flags);
+ code = SEGV_ACCERR;
+ writeaccess = 0;
+
switch (ecr) {
case ECR_PROTECTION_X:
case ECR_TLB_MISS_X:
* map. Fix it, but check if it's kernel or user first...
*/
bad_area:
- pr_debug("Bad area [%s:%u]: addr %08lx, ecr %lu\n",
- tsk->comm, tsk->pid, address, ecr);
-
up_read(&mm->mmap_sem);
if (user_mode(regs)) {
- /* Hmm...we have to pass address and ecr somehow... */
- /* tsk->thread.address = address;
- tsk->thread.error_code = ecr; */
-#ifdef DEBUG
- show_regs(regs);
- dump_code(regs->pc);
-
- page = sysreg_read(PTBR);
- printk("ptbr = %08lx", page);
- if (page) {
- page = ((unsigned long *)page)[address >> 22];
- printk(" pgd = %08lx", page);
- if (page & _PAGE_PRESENT) {
- page &= PAGE_MASK;
- address &= 0x003ff000;
- page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT];
- printk(" pte = %08lx\n", page);
- }
- }
-#endif
- pr_debug("Sending SIGSEGV to PID %d...\n",
- tsk->pid);
- force_sig(SIGSEGV, tsk);
+ if (exception_trace)
+ printk("%s%s[%d]: segfault at %08lx pc %08lx "
+ "sp %08lx ecr %lu\n",
+ is_init(tsk) ? KERN_EMERG : KERN_INFO,
+ tsk->comm, tsk->pid, address, regs->pc,
+ regs->sp, ecr);
+ _exception(SIGSEGV, regs, code, address);
return;
}
no_context:
- pr_debug("No context\n");
-
/* Are we prepared to handle this kernel fault? */
fixup = search_exception_tables(regs->pc);
if (fixup) {
regs->pc = fixup->fixup;
- pr_debug("Found fixup at %08lx\n", fixup->fixup);
return;
}
printk(KERN_ALERT
"Unable to handle kernel paging request");
printk(" at virtual address %08lx\n", address);
- printk(KERN_ALERT "pc = %08lx\n", regs->pc);
page = sysreg_read(PTBR);
printk(KERN_ALERT "ptbr = %08lx", page);
page &= PAGE_MASK;
address &= 0x003ff000;
page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT];
- printk(" pte = %08lx\n", page);
+ printk(" pte = %08lx", page);
}
}
- die("\nOops", regs, ecr);
- do_exit(SIGKILL);
+ printk("\n");
+ die("Kernel access of bad area", regs, signr);
+ return;
/*
* We ran out of memory, or some other thing happened to us
* that made us unable to handle the page fault gracefully.
*/
out_of_memory:
- printk("Out of memory\n");
up_read(&mm->mmap_sem);
- if (current->pid == 1) {
+ if (is_init(current)) {
yield();
down_read(&mm->mmap_sem);
goto survive;
do_sigbus:
up_read(&mm->mmap_sem);
- /*
- * Send a sigbus, regardless of whether we were in kernel or
- * user mode.
- */
- /* address, error_code, trap_no, ... */
-#ifdef DEBUG
- show_regs(regs);
- dump_code(regs->pc);
-#endif
- pr_debug("Sending SIGBUS to PID %d...\n", tsk->pid);
- force_sig(SIGBUS, tsk);
-
/* Kernel mode? Handle exceptions or die */
+ signr = SIGBUS;
+ code = BUS_ADRERR;
if (!user_mode(regs))
goto no_context;
+
+ if (exception_trace)
+ printk("%s%s[%d]: bus error at %08lx pc %08lx "
+ "sp %08lx ecr %lu\n",
+ is_init(tsk) ? KERN_EMERG : KERN_INFO,
+ tsk->comm, tsk->pid, address, regs->pc,
+ regs->sp, ecr);
+
+ _exception(SIGBUS, regs, BUS_ADRERR, address);
}
asmlinkage void do_bus_error(unsigned long addr, int write_access,
addr, write_access ? "write" : "read");
printk(KERN_INFO "DTLB dump:\n");
dump_dtlb();
- die("Bus Error", regs, write_access);
- do_exit(SIGKILL);
+ die("Bus Error", regs, SIGKILL);
}
/*
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/init.h>
-#include <linux/initrd.h>
#include <linux/mmzone.h>
#include <linux/bootmem.h>
#include <linux/pagemap.h>
-#include <linux/pfn.h>
#include <linux/nodemask.h>
#include <asm/page.h>
printk ("%d pages swap cached\n", cached);
}
-static void __init print_memory_map(const char *what,
- struct tag_mem_range *mem)
-{
- printk ("%s:\n", what);
- for (; mem; mem = mem->next) {
- printk (" %08lx - %08lx\n",
- (unsigned long)mem->addr,
- (unsigned long)(mem->addr + mem->size));
- }
-}
-
-#define MAX_LOWMEM HIGHMEM_START
-#define MAX_LOWMEM_PFN PFN_DOWN(MAX_LOWMEM)
-
-/*
- * Sort a list of memory regions in-place by ascending address.
- *
- * We're using bubble sort because we only have singly linked lists
- * with few elements.
- */
-static void __init sort_mem_list(struct tag_mem_range **pmem)
-{
- int done;
- struct tag_mem_range **a, **b;
-
- if (!*pmem)
- return;
-
- do {
- done = 1;
- a = pmem, b = &(*pmem)->next;
- while (*b) {
- if ((*a)->addr > (*b)->addr) {
- struct tag_mem_range *tmp;
- tmp = (*b)->next;
- (*b)->next = *a;
- *a = *b;
- *b = tmp;
- done = 0;
- }
- a = &(*a)->next;
- b = &(*a)->next;
- }
- } while (!done);
-}
-
-/*
- * Find a free memory region large enough for storing the
- * bootmem bitmap.
- */
-static unsigned long __init
-find_bootmap_pfn(const struct tag_mem_range *mem)
-{
- unsigned long bootmap_pages, bootmap_len;
- unsigned long node_pages = PFN_UP(mem->size);
- unsigned long bootmap_addr = mem->addr;
- struct tag_mem_range *reserved = mem_reserved;
- struct tag_mem_range *ramdisk = mem_ramdisk;
- unsigned long kern_start = virt_to_phys(_stext);
- unsigned long kern_end = virt_to_phys(_end);
-
- bootmap_pages = bootmem_bootmap_pages(node_pages);
- bootmap_len = bootmap_pages << PAGE_SHIFT;
-
- /*
- * Find a large enough region without reserved pages for
- * storing the bootmem bitmap. We can take advantage of the
- * fact that all lists have been sorted.
- *
- * We have to check explicitly reserved regions as well as the
- * kernel image and any RAMDISK images...
- *
- * Oh, and we have to make sure we don't overwrite the taglist
- * since we're going to use it until the bootmem allocator is
- * fully up and running.
- */
- while (1) {
- if ((bootmap_addr < kern_end) &&
- ((bootmap_addr + bootmap_len) > kern_start))
- bootmap_addr = kern_end;
-
- while (reserved &&
- (bootmap_addr >= (reserved->addr + reserved->size)))
- reserved = reserved->next;
-
- if (reserved &&
- ((bootmap_addr + bootmap_len) >= reserved->addr)) {
- bootmap_addr = reserved->addr + reserved->size;
- continue;
- }
-
- while (ramdisk &&
- (bootmap_addr >= (ramdisk->addr + ramdisk->size)))
- ramdisk = ramdisk->next;
-
- if (!ramdisk ||
- ((bootmap_addr + bootmap_len) < ramdisk->addr))
- break;
-
- bootmap_addr = ramdisk->addr + ramdisk->size;
- }
-
- if ((PFN_UP(bootmap_addr) + bootmap_len) >= (mem->addr + mem->size))
- return ~0UL;
-
- return PFN_UP(bootmap_addr);
-}
-
-void __init setup_bootmem(void)
-{
- unsigned bootmap_size;
- unsigned long first_pfn, bootmap_pfn, pages;
- unsigned long max_pfn, max_low_pfn;
- unsigned long kern_start = virt_to_phys(_stext);
- unsigned long kern_end = virt_to_phys(_end);
- unsigned node = 0;
- struct tag_mem_range *bank, *res;
-
- sort_mem_list(&mem_phys);
- sort_mem_list(&mem_reserved);
-
- print_memory_map("Physical memory", mem_phys);
- print_memory_map("Reserved memory", mem_reserved);
-
- nodes_clear(node_online_map);
-
- if (mem_ramdisk) {
-#ifdef CONFIG_BLK_DEV_INITRD
- initrd_start = (unsigned long)__va(mem_ramdisk->addr);
- initrd_end = initrd_start + mem_ramdisk->size;
-
- print_memory_map("RAMDISK images", mem_ramdisk);
- if (mem_ramdisk->next)
- printk(KERN_WARNING
- "Warning: Only the first RAMDISK image "
- "will be used\n");
- sort_mem_list(&mem_ramdisk);
-#else
- printk(KERN_WARNING "RAM disk image present, but "
- "no initrd support in kernel!\n");
-#endif
- }
-
- if (mem_phys->next)
- printk(KERN_WARNING "Only using first memory bank\n");
-
- for (bank = mem_phys; bank; bank = NULL) {
- first_pfn = PFN_UP(bank->addr);
- max_low_pfn = max_pfn = PFN_DOWN(bank->addr + bank->size);
- bootmap_pfn = find_bootmap_pfn(bank);
- if (bootmap_pfn > max_pfn)
- panic("No space for bootmem bitmap!\n");
-
- if (max_low_pfn > MAX_LOWMEM_PFN) {
- max_low_pfn = MAX_LOWMEM_PFN;
-#ifndef CONFIG_HIGHMEM
- /*
- * Lowmem is memory that can be addressed
- * directly through P1/P2
- */
- printk(KERN_WARNING
- "Node %u: Only %ld MiB of memory will be used.\n",
- node, MAX_LOWMEM >> 20);
- printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n");
-#else
-#error HIGHMEM is not supported by AVR32 yet
-#endif
- }
-
- /* Initialize the boot-time allocator with low memory only. */
- bootmap_size = init_bootmem_node(NODE_DATA(node), bootmap_pfn,
- first_pfn, max_low_pfn);
-
- printk("Node %u: bdata = %p, bdata->node_bootmem_map = %p\n",
- node, NODE_DATA(node)->bdata,
- NODE_DATA(node)->bdata->node_bootmem_map);
-
- /*
- * Register fully available RAM pages with the bootmem
- * allocator.
- */
- pages = max_low_pfn - first_pfn;
- free_bootmem_node (NODE_DATA(node), PFN_PHYS(first_pfn),
- PFN_PHYS(pages));
-
- /*
- * Reserve space for the kernel image (if present in
- * this node)...
- */
- if ((kern_start >= PFN_PHYS(first_pfn)) &&
- (kern_start < PFN_PHYS(max_pfn))) {
- printk("Node %u: Kernel image %08lx - %08lx\n",
- node, kern_start, kern_end);
- reserve_bootmem_node(NODE_DATA(node), kern_start,
- kern_end - kern_start);
- }
-
- /* ...the bootmem bitmap... */
- reserve_bootmem_node(NODE_DATA(node),
- PFN_PHYS(bootmap_pfn),
- bootmap_size);
-
- /* ...any RAMDISK images... */
- for (res = mem_ramdisk; res; res = res->next) {
- if (res->addr > PFN_PHYS(max_pfn))
- break;
-
- if (res->addr >= PFN_PHYS(first_pfn)) {
- printk("Node %u: RAMDISK %08lx - %08lx\n",
- node,
- (unsigned long)res->addr,
- (unsigned long)(res->addr + res->size));
- reserve_bootmem_node(NODE_DATA(node),
- res->addr, res->size);
- }
- }
-
- /* ...and any other reserved regions. */
- for (res = mem_reserved; res; res = res->next) {
- if (res->addr > PFN_PHYS(max_pfn))
- break;
-
- if (res->addr >= PFN_PHYS(first_pfn)) {
- printk("Node %u: Reserved %08lx - %08lx\n",
- node,
- (unsigned long)res->addr,
- (unsigned long)(res->addr + res->size));
- reserve_bootmem_node(NODE_DATA(node),
- res->addr, res->size);
- }
- }
-
- node_set_online(node);
- }
-}
-
/*
* paging_init() sets up the page tables
*
#include <asm/alternative.h>
#include <asm/sections.h>
-static int no_replacement = 0;
static int smp_alt_once = 0;
static int debug_alternative = 0;
-static int __init noreplacement_setup(char *s)
-{
- no_replacement = 1;
- return 1;
-}
static int __init bootonly(char *str)
{
smp_alt_once = 1;
return 1;
}
-__setup("noreplacement", noreplacement_setup);
__setup("smp-alt-boot", bootonly);
__setup("debug-alternative", debug_alt);
struct smp_alt_module *smp;
unsigned long flags;
- if (no_replacement)
- return;
-
if (smp_alt_once) {
if (boot_cpu_has(X86_FEATURE_UP))
alternatives_smp_unlock(locks, locks_end,
struct smp_alt_module *item;
unsigned long flags;
- if (no_replacement || smp_alt_once)
+ if (smp_alt_once)
return;
spin_lock_irqsave(&smp_alt, flags);
return;
#endif
- if (no_replacement || smp_alt_once)
+ if (smp_alt_once)
return;
BUG_ON(!smp && (num_online_cpus() > 1));
void __init alternative_instructions(void)
{
unsigned long flags;
- if (no_replacement) {
- printk(KERN_INFO "(SMP-)alternatives turned off\n");
- free_init_pages("SMP alternatives",
- (unsigned long)__smp_alt_begin,
- (unsigned long)__smp_alt_end);
- return;
- }
local_irq_save(flags);
apply_alternatives(__alt_instructions, __alt_instructions_end);
NULL, (void *)&pr);
/* Check ACPI support for C3 state */
- if (pr != NULL && longhaul_version != TYPE_LONGHAUL_V1) {
+ if (pr != NULL && longhaul_version == TYPE_POWERSAVER) {
cx = &pr->power.states[ACPI_STATE_C3];
if (cx->address > 0 && cx->latency <= 1000) {
longhaul_flags |= USE_ACPI_C3;
int cpu;
BUG_ON(counter > NMI_MAX_COUNTER_BITS);
for_each_possible_cpu (cpu) {
- if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)))
+ if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0]))
return 0;
}
return 1;
BUG_ON(counter > NMI_MAX_COUNTER_BITS);
for_each_possible_cpu (cpu) {
- if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)))
+ if (test_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0]))
return 0;
}
return 1;
counter = nmi_perfctr_msr_to_bit(msr);
BUG_ON(counter > NMI_MAX_COUNTER_BITS);
- if (!test_and_set_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)))
+ if (!test_and_set_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0]))
return 1;
return 0;
}
counter = nmi_perfctr_msr_to_bit(msr);
BUG_ON(counter > NMI_MAX_COUNTER_BITS);
- clear_bit(counter, &per_cpu(perfctr_nmi_owner, cpu));
+ clear_bit(counter, &per_cpu(perfctr_nmi_owner, cpu)[0]);
}
int reserve_perfctr_nmi(unsigned int msr)
printk(KERN_NOTICE "%s: memory squeeze. dropping packet.\n", dev->name);
return NULL;
}
- nskb->dev = dev;
skb_reserve(nskb, 2); /* Align IP on 16 byte boundaries */
* XXX Fix me
* Should really do a csum+copy here
*/
- memcpy(skb->data, frame, len);
+ skb_copy_to_linear_data(skb, frame, len);
#endif
skb->protocol = eth_type_trans(skb, dev);
"%lu)\n", skb->data, &msg->data,
(size_t) msg->embedded_bytes);
- memcpy(skb->data, &msg->data, (size_t) msg->embedded_bytes);
+ skb_copy_to_linear_data(skb, &msg->data, (size_t)msg->embedded_bytes);
} else {
dev_dbg(xpnet, "transferring buffer to the skb->data area;\n\t"
"bte_copy(0x%p, 0x%p, %hu)\n", (void *)msg->buf_pa,
dev_dbg(xpnet, "<skb->head=0x%p skb->data=0x%p skb->tail=0x%p "
"skb->end=0x%p skb->len=%d\n", (void *) skb->head,
- (void *) skb->data, (void *) skb->tail, (void *) skb->end,
+ (void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
skb->len);
- skb->dev = xpnet_device;
skb->protocol = eth_type_trans(skb, xpnet_device);
skb->ip_summed = CHECKSUM_UNNECESSARY;
dev_dbg(xpnet, "passing skb to network layer; \n\tskb->head=0x%p "
"skb->data=0x%p skb->tail=0x%p skb->end=0x%p skb->len=%d\n",
- (void *) skb->head, (void *) skb->data, (void *) skb->tail,
- (void *) skb->end, skb->len);
+ (void *)skb->head, (void *)skb->data, skb_tail_pointer(skb),
+ skb_end_pointer(skb), skb->len);
xpnet_device->last_rx = jiffies;
dev_dbg(xpnet, ">skb->head=0x%p skb->data=0x%p skb->tail=0x%p "
"skb->end=0x%p skb->len=%d\n", (void *) skb->head,
- (void *) skb->data, (void *) skb->tail, (void *) skb->end,
+ (void *)skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
skb->len);
/* get the beginning of the first cacheline and end of last */
start_addr = ((u64) skb->data & ~(L1_CACHE_BYTES - 1));
- end_addr = L1_CACHE_ALIGN((u64) skb->tail);
+ end_addr = L1_CACHE_ALIGN((u64)skb_tail_pointer(skb));
/* calculate how many bytes to embed in the XPC message */
embedded_bytes = 0;
msg->version = XPNET_VERSION_EMBED;
dev_dbg(xpnet, "calling memcpy(0x%p, 0x%p, 0x%lx)\n",
&msg->data, skb->data, (size_t) embedded_bytes);
- memcpy(&msg->data, skb->data, (size_t) embedded_bytes);
+ skb_copy_from_linear_data(skb, &msg->data,
+ (size_t)embedded_bytes);
} else {
msg->version = XPNET_VERSION;
}
msg->magic = XPNET_MAGIC;
msg->size = end_addr - start_addr;
msg->leadin_ignore = (u64) skb->data - start_addr;
- msg->tailout_ignore = end_addr - (u64) skb->tail;
+ msg->tailout_ignore = end_addr - (u64)skb_tail_pointer(skb);
msg->buf_pa = __pa(start_addr);
dev_dbg(xpnet, "sending XPC message to %d:%d\nmsg->buf_pa="
config ZONE_DMA
bool
- default y
choice
prompt "System type"
select HW_HAS_PCI
select I8259
select IRQ_CPU
- select MIPS_GT64111
+ select PCI_GT64XXX_PCI0
select SYS_HAS_CPU_NEVADA
select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_32BIT_KERNEL
depends on EXPERIMENTAL
select DMA_NONCOHERENT
select HW_HAS_PCI
- select MIPS_GT64120
+ select PCI_GT64XXX_PCI0
select SYS_HAS_CPU_R5000
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL
select DMA_NONCOHERENT
select SYS_HAS_EARLY_PRINTK
select HW_HAS_PCI
- select MIPS_GT64120
+ select PCI_GT64XXX_PCI0
select MIPS_NILE4
select R5000_CPU_SCACHE
select SYS_HAS_CPU_R5000
select HW_HAS_PCI
select MIPS_BOARDS_GEN
select MIPS_BONITO64
- select MIPS_GT64120
+ select PCI_GT64XXX_PCI0
select MIPS_MSC
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
select MIPS_BOARDS_GEN
select MIPS_BONITO64
select MIPS_CPU_SCACHE
- select MIPS_GT64120
+ select PCI_GT64XXX_PCI0
select MIPS_MSC
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
select BOOT_ELF32
select DMA_NONCOHERENT
select HW_HAS_PCI
- select MIPS_GT64120
+ select PCI_GT64XXX_PCI0
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
select SYS_HAS_CPU_MIPS32_R2
select HW_HAS_PCI
select IRQ_CPU
select IRQ_CPU_RM7K
- select MIPS_GT64120
+ select PCI_GT64XXX_PCI0
select RM7000_CPU_SCACHE
select SWAP_IO_SPACE
select SYS_HAS_CPU_RM7000
ether port USB, AC97, PCI, etc.
config MACH_VR41XX
- bool "NEC VR41XX-based machines"
+ bool "NEC VR4100 series based machines"
select SYS_HAS_CPU_VR41XX
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
select GENERIC_HARDIRQS_NO__DO_IRQ
config PMC_YOSEMITE
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_BIG_ENDIAN
select TOSHIBA_BOARDS
+ select GENERIC_HARDIRQS_NO__DO_IRQ
config TOSHIBA_RBTX4927
bool "Toshiba TBTX49[23]7 board"
config GENERIC_ISA_DMA
bool
+ select ZONE_DMA
config I8259
bool
config GENERIC_ISA_DMA_SUPPORT_BROKEN
bool
+ select ZONE_DMA
#
# Endianess selection. Sufficiently obscure so many users don't know what to
config MIPS_BOARDS_GEN
bool
-config MIPS_GT64111
- bool
-
-config MIPS_GT64120
+config PCI_GT64XXX_PCI0
bool
config MIPS_TX3927
load-$(CONFIG_SGI_IP32) += 0xffffffff80004000
#
-# Sibyte SB1250 SOC
+# Sibyte SB1250/BCM1480 SOC
#
# This is a LIB so that it links at the end, and initcalls are later
# the sequence; but it is built as an object so that modules don't get
# removed (as happens, even if they have __initcall/module_init)
#
core-$(CONFIG_SIBYTE_BCM112X) += arch/mips/sibyte/sb1250/
+core-$(CONFIG_SIBYTE_BCM112X) += arch/mips/sibyte/common/
cflags-$(CONFIG_SIBYTE_BCM112X) += -Iinclude/asm-mips/mach-sibyte \
-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1250_112x_ALL
core-$(CONFIG_SIBYTE_SB1250) += arch/mips/sibyte/sb1250/
+core-$(CONFIG_SIBYTE_SB1250) += arch/mips/sibyte/common/
cflags-$(CONFIG_SIBYTE_SB1250) += -Iinclude/asm-mips/mach-sibyte \
-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1250_112x_ALL
core-$(CONFIG_SIBYTE_BCM1x55) += arch/mips/sibyte/bcm1480/
+core-$(CONFIG_SIBYTE_BCM1x55) += arch/mips/sibyte/common/
cflags-$(CONFIG_SIBYTE_BCM1x55) += -Iinclude/asm-mips/mach-sibyte \
-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1480_ALL
core-$(CONFIG_SIBYTE_BCM1x80) += arch/mips/sibyte/bcm1480/
+core-$(CONFIG_SIBYTE_BCM1x80) += arch/mips/sibyte/common/
cflags-$(CONFIG_SIBYTE_BCM1x80) += -Iinclude/asm-mips/mach-sibyte \
-DSIBYTE_HDR_FEATURES=SIBYTE_HDR_FMASK_1480_ALL
volatile void __iomem * const titan_base = (void *) (EXCITE_ADDR_TITAN);
/* Protect access to shared GPI registers */
-spinlock_t titan_lock = SPIN_LOCK_UNLOCKED;
+DEFINE_SPINLOCK(titan_lock);
int titan_irqflags;
obj-y := irq.o reset.o setup.o
+obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_EARLY_PRINTK) += console.o
obj-$(CONFIG_MTD_PHYSMAP) += mtd.o
/*
* (C) P. Horton 2006
*/
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/console.h>
#include <linux/serial_reg.h>
+
#include <asm/addrspace.h>
-#include <asm/mach-cobalt/cobalt.h>
+
+#include <cobalt.h>
void prom_putchar(char c)
{
#include <asm/irq_cpu.h>
#include <asm/gt64120.h>
-#include <asm/mach-cobalt/cobalt.h>
+#include <cobalt.h>
/*
* We have two types of interrupts that we handle, ones that come in through
--- /dev/null
+/*
+ * Register PCI controller.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
+ *
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <asm/gt64120.h>
+
+extern struct pci_ops gt64xxx_pci0_ops;
+
+static struct resource cobalt_mem_resource = {
+ .start = GT_DEF_PCI0_MEM0_BASE,
+ .end = GT_DEF_PCI0_MEM0_BASE + GT_DEF_PCI0_MEM0_SIZE - 1,
+ .name = "PCI memory",
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource cobalt_io_resource = {
+ .start = 0x1000,
+ .end = GT_DEF_PCI0_IO_SIZE - 1,
+ .name = "PCI I/O",
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller cobalt_pci_controller = {
+ .pci_ops = >64xxx_pci0_ops,
+ .mem_resource = &cobalt_mem_resource,
+ .io_resource = &cobalt_io_resource,
+ .io_offset = 0 - GT_DEF_PCI0_IO_BASE,
+};
+
+static int __init cobalt_pci_init(void)
+{
+ register_pci_controller(&cobalt_pci_controller);
+
+ return 0;
+}
+
+arch_initcall(cobalt_pci_init);
* Copyright (C) 1995, 1996, 1997 by Ralf Baechle
* Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
*/
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/cacheflush.h>
+#include <linux/jiffies.h>
+
#include <asm/io.h>
-#include <asm/processor.h>
#include <asm/reboot.h>
-#include <asm/system.h>
-#include <asm/mipsregs.h>
-#include <asm/mach-cobalt/cobalt.h>
+
+#include <cobalt.h>
void cobalt_machine_halt(void)
{
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/processor.h>
#include <asm/reboot.h>
#include <asm/gt64120.h>
-#include <asm/mach-cobalt/cobalt.h>
+#include <cobalt.h>
extern void cobalt_machine_restart(char *command);
extern void cobalt_machine_halt(void);
GT_WRITE(GT_INTRMASK_OFS, GT_INTR_T0EXP_MSK | GT_READ(GT_INTRMASK_OFS));
}
-extern struct pci_ops gt64111_pci_ops;
-
-static struct resource cobalt_mem_resource = {
- .start = GT_DEF_PCI0_MEM0_BASE,
- .end = GT_DEF_PCI0_MEM0_BASE + GT_DEF_PCI0_MEM0_SIZE - 1,
- .name = "PCI memory",
- .flags = IORESOURCE_MEM
-};
-
-static struct resource cobalt_io_resource = {
- .start = 0x1000,
- .end = 0xffff,
- .name = "PCI I/O",
- .flags = IORESOURCE_IO
-};
-
/*
* Cobalt doesn't have PS/2 keyboard/mouse interfaces,
* keyboard conntroller is never used.
},
};
-static struct pci_controller cobalt_pci_controller = {
- .pci_ops = >64111_pci_ops,
- .mem_resource = &cobalt_mem_resource,
- .mem_offset = 0,
- .io_resource = &cobalt_io_resource,
- .io_offset = 0 - GT_DEF_PCI0_IO_BASE,
-};
-
void __init plat_mem_setup(void)
{
static struct uart_port uart;
printk("Cobalt board ID: %d\n", cobalt_board_id);
-#ifdef CONFIG_PCI
- register_pci_controller(&cobalt_pci_controller);
-#endif
-
if (cobalt_board_id > COBALT_BRD_ID_RAQ1) {
#ifdef CONFIG_SERIAL_8250
uart.line = 0;
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20
-# Tue Feb 20 21:47:34 2007
+# Linux kernel version: 2.6.21-rc3
+# Thu Mar 15 00:40:40 2007
#
CONFIG_MIPS=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
+CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
CONFIG_DMA_NONCOHERENT=y
CONFIG_DMA_NEED_PCI_MAP_STATE=y
CONFIG_CPU_BIG_ENDIAN=y
# CONFIG_HZ_48 is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_128 is not set
-# CONFIG_HZ_250 is not set
+CONFIG_HZ_250=y
# CONFIG_HZ_256 is not set
-CONFIG_HZ_1000=y
+# CONFIG_HZ_1000 is not set
# CONFIG_HZ_1024 is not set
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
-CONFIG_HZ=1000
+CONFIG_HZ=250
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
CONFIG_SYSFS_DEPRECATED=y
-CONFIG_RELAY=y
+# CONFIG_RELAY is not set
+# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
+# CONFIG_HOTPLUG is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
+CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
+CONFIG_DEFAULT_IOSCHED="cfq"
#
# Bus options (PCI, PCMCIA, EISA, ISA, TC)
#
# PCCARD (PCMCIA/CardBus) support
#
-# CONFIG_PCCARD is not set
#
# PCI Hotplug Support
#
-# CONFIG_HOTPLUG_PCI is not set
#
# Executable file formats
#
# Power management options
#
-CONFIG_PM=y
-# CONFIG_PM_LEGACY is not set
-# CONFIG_PM_DEBUG is not set
-# CONFIG_PM_SYSFS_DEPRECATED is not set
+# CONFIG_PM is not set
#
# Networking
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
-CONFIG_XFRM=y
-CONFIG_XFRM_USER=y
-# CONFIG_XFRM_SUB_POLICY is not set
-CONFIG_XFRM_MIGRATE=y
-CONFIG_NET_KEY=y
-CONFIG_NET_KEY_MIGRATE=y
+# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
-CONFIG_TCP_MD5SIG=y
+# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
-CONFIG_NETWORK_SECMARK=y
+# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
#
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
-CONFIG_IEEE80211=y
-# CONFIG_IEEE80211_DEBUG is not set
-CONFIG_IEEE80211_CRYPT_WEP=y
-CONFIG_IEEE80211_CRYPT_CCMP=y
-CONFIG_IEEE80211_SOFTMAC=y
-# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set
-CONFIG_WIRELESS_EXT=y
+# CONFIG_IEEE80211 is not set
#
# Device Drivers
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
# CONFIG_SYS_HYPERVISOR is not set
#
# Connector - unified userspace <-> kernelspace linker
#
-CONFIG_CONNECTOR=y
-CONFIG_PROC_EVENTS=y
+# CONFIG_CONNECTOR is not set
#
# Memory Technology Devices (MTD)
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
-# CONFIG_BLK_DEV_INITRD is not set
-CONFIG_CDROM_PKTCDVD=y
-CONFIG_CDROM_PKTCDVD_BUFFERS=8
-# CONFIG_CDROM_PKTCDVD_WCACHE is not set
-CONFIG_ATA_OVER_ETH=y
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
#
# Misc devices
#
-CONFIG_SGI_IOC4=y
+# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
#
#
# SCSI device support
#
-CONFIG_RAID_ATTRS=y
+# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# CONFIG_SCSI_NETLINK is not set
#
# PHY device support
#
-CONFIG_PHYLIB=y
-
-#
-# MII PHY device drivers
-#
-CONFIG_MARVELL_PHY=y
-CONFIG_DAVICOM_PHY=y
-CONFIG_QSEMI_PHY=y
-CONFIG_LXT_PHY=y
-CONFIG_CICADA_PHY=y
-CONFIG_VITESSE_PHY=y
-CONFIG_SMSC_PHY=y
-# CONFIG_BROADCOM_PHY is not set
-# CONFIG_FIXED_PHY is not set
+# CONFIG_PHYLIB is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
-# CONFIG_MII is not set
+CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
#
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
-# CONFIG_NET_PCI is not set
+CONFIG_NET_PCI=y
+# CONFIG_PCNET32 is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_B44 is not set
+# CONFIG_FORCEDETH is not set
+CONFIG_TC35815=y
+# CONFIG_DGRS is not set
+# CONFIG_EEPRO100 is not set
+# CONFIG_E100 is not set
+# CONFIG_FEALNX is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_SIS900 is not set
+# CONFIG_EPIC100 is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_TLAN is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_SC92031 is not set
#
# Ethernet (1000 Mbit)
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_SK98LIN is not set
+# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set
-CONFIG_QLA3XXX=y
+# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
#
# Ethernet (10000 Mbit)
#
# CONFIG_CHELSIO_T1 is not set
-CONFIG_CHELSIO_T3=y
+# CONFIG_CHELSIO_T3 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
-CONFIG_NETXEN_NIC=y
+# CONFIG_NETXEN_NIC is not set
#
# Token Ring devices
#
# Userland interfaces
#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
#
# Hardware I/O ports
#
-CONFIG_SERIO=y
-# CONFIG_SERIO_I8042 is not set
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PCIPS2 is not set
-# CONFIG_SERIO_LIBPS2 is not set
-CONFIG_SERIO_RAW=y
+# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
-CONFIG_VT=y
-CONFIG_VT_CONSOLE=y
-CONFIG_HW_CONSOLE=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_VT is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
# CONFIG_ROCKETPORT is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
-CONFIG_MOXA_SMARTIO_NEW=y
+# CONFIG_MOXA_SMARTIO_NEW is not set
# CONFIG_ISI is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_TXX9=y
CONFIG_HAS_TXX9_SERIAL=y
CONFIG_SERIAL_TXX9_NR_UARTS=6
-# CONFIG_SERIAL_TXX9_CONSOLE is not set
-# CONFIG_SERIAL_TXX9_STDSERIAL is not set
+CONFIG_SERIAL_TXX9_CONSOLE=y
+CONFIG_SERIAL_TXX9_STDSERIAL=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_UNIX98_PTYS is not set
CONFIG_LEGACY_PTYS=y
# CONFIG_HWMON is not set
# CONFIG_HWMON_VID is not set
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+
#
# Multimedia devices
#
#
# Graphics support
#
-# CONFIG_FIRMWARE_EDID is not set
-CONFIG_FB=y
-# CONFIG_FB_CFB_FILLRECT is not set
-# CONFIG_FB_CFB_COPYAREA is not set
-# CONFIG_FB_CFB_IMAGEBLIT is not set
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-# CONFIG_FB_MODE_HELPERS is not set
-# CONFIG_FB_TILEBLITTING is not set
-# CONFIG_FB_CIRRUS is not set
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_NVIDIA is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_S3 is not set
-# CONFIG_FB_SAVAGE is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-# CONFIG_FB_KYRO is not set
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_SMIVGX is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_VIRTUAL is not set
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE is not set
-
-#
-# Logo configuration
-#
-# CONFIG_LOGO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+# CONFIG_FB is not set
#
# Sound
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
-CONFIG_FUSE_FS=y
+# CONFIG_FUSE_FS is not set
#
# CD-ROM/DVD Filesystems
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
-CONFIG_CONFIGFS_FS=y
+# CONFIG_CONFIGFS_FS is not set
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
-# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
#
# Distributed Lock Manager
#
-CONFIG_DLM=y
-CONFIG_DLM_TCP=y
-# CONFIG_DLM_SCTP is not set
-# CONFIG_DLM_DEBUG is not set
+# CONFIG_DLM is not set
#
# Profiling support
#
# Security options
#
-CONFIG_KEYS=y
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
+# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_BLKCIPHER=y
-CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_MANAGER=y
-CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_XCBC=y
-CONFIG_CRYPTO_NULL=y
-CONFIG_CRYPTO_MD4=y
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_SHA1=y
-CONFIG_CRYPTO_SHA256=y
-CONFIG_CRYPTO_SHA512=y
-CONFIG_CRYPTO_WP512=y
-CONFIG_CRYPTO_TGR192=y
-CONFIG_CRYPTO_GF128MUL=y
-CONFIG_CRYPTO_ECB=y
-CONFIG_CRYPTO_CBC=y
-CONFIG_CRYPTO_PCBC=y
-CONFIG_CRYPTO_LRW=y
-CONFIG_CRYPTO_DES=y
-CONFIG_CRYPTO_FCRYPT=y
-CONFIG_CRYPTO_BLOWFISH=y
-CONFIG_CRYPTO_TWOFISH=y
-CONFIG_CRYPTO_TWOFISH_COMMON=y
-CONFIG_CRYPTO_SERPENT=y
-CONFIG_CRYPTO_AES=y
-CONFIG_CRYPTO_CAST5=y
-CONFIG_CRYPTO_CAST6=y
-CONFIG_CRYPTO_TEA=y
-CONFIG_CRYPTO_ARC4=y
-CONFIG_CRYPTO_KHAZAD=y
-CONFIG_CRYPTO_ANUBIS=y
-CONFIG_CRYPTO_DEFLATE=y
-CONFIG_CRYPTO_MICHAEL_MIC=y
-CONFIG_CRYPTO_CRC32C=y
-CONFIG_CRYPTO_CAMELLIA=y
-
-#
-# Hardware crypto devices
-#
+# CONFIG_CRYPTO is not set
#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_CRC_CCITT is not set
-CONFIG_CRC16=y
+# CONFIG_CRC16 is not set
CONFIG_CRC32=y
-CONFIG_LIBCRC32C=y
-CONFIG_ZLIB_INFLATE=y
-CONFIG_ZLIB_DEFLATE=y
+# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
+++ /dev/null
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20
-# Tue Feb 20 21:47:39 2007
-#
-CONFIG_MIPS=y
-
-#
-# Machine selection
-#
-CONFIG_ZONE_DMA=y
-# CONFIG_MIPS_MTX1 is not set
-# CONFIG_MIPS_BOSPORUS is not set
-# CONFIG_MIPS_PB1000 is not set
-# CONFIG_MIPS_PB1100 is not set
-# CONFIG_MIPS_PB1500 is not set
-# CONFIG_MIPS_PB1550 is not set
-# CONFIG_MIPS_PB1200 is not set
-# CONFIG_MIPS_DB1000 is not set
-# CONFIG_MIPS_DB1100 is not set
-# CONFIG_MIPS_DB1500 is not set
-# CONFIG_MIPS_DB1550 is not set
-# CONFIG_MIPS_DB1200 is not set
-# CONFIG_MIPS_MIRAGE is not set
-# CONFIG_BASLER_EXCITE is not set
-# CONFIG_MIPS_COBALT is not set
-# CONFIG_MACH_DECSTATION is not set
-# CONFIG_MIPS_EV64120 is not set
-# CONFIG_MACH_JAZZ is not set
-# CONFIG_LASAT is not set
-# CONFIG_MIPS_ATLAS is not set
-# CONFIG_MIPS_MALTA is not set
-# CONFIG_MIPS_SEAD is not set
-# CONFIG_WR_PPMC is not set
-# CONFIG_MIPS_SIM is not set
-# CONFIG_MOMENCO_JAGUAR_ATX is not set
-# CONFIG_MOMENCO_OCELOT is not set
-# CONFIG_MOMENCO_OCELOT_3 is not set
-# CONFIG_MOMENCO_OCELOT_C is not set
-# CONFIG_MOMENCO_OCELOT_G is not set
-# CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_JBS is not set
-# CONFIG_PNX8550_STB810 is not set
-# CONFIG_DDB5477 is not set
-# CONFIG_MACH_VR41XX is not set
-# CONFIG_PMC_YOSEMITE is not set
-# CONFIG_QEMU is not set
-# CONFIG_MARKEINS is not set
-# CONFIG_SGI_IP22 is not set
-# CONFIG_SGI_IP27 is not set
-# CONFIG_SGI_IP32 is not set
-# CONFIG_SIBYTE_BIGSUR is not set
-# CONFIG_SIBYTE_SWARM is not set
-# CONFIG_SIBYTE_SENTOSA is not set
-# CONFIG_SIBYTE_RHONE is not set
-# CONFIG_SIBYTE_CARMEL is not set
-# CONFIG_SIBYTE_PTSWARM is not set
-# CONFIG_SIBYTE_LITTLESUR is not set
-# CONFIG_SIBYTE_CRHINE is not set
-# CONFIG_SIBYTE_CRHONE is not set
-# CONFIG_SNI_RM is not set
-# CONFIG_TOSHIBA_JMR3927 is not set
-# CONFIG_TOSHIBA_RBTX4927 is not set
-# CONFIG_TOSHIBA_RBTX4938 is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_TIME=y
-CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
-CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
-CONFIG_DMA_NONCOHERENT=y
-CONFIG_DMA_NEED_PCI_MAP_STATE=y
-# CONFIG_CPU_BIG_ENDIAN is not set
-CONFIG_CPU_LITTLE_ENDIAN=y
-CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
-CONFIG_PNX8550=y
-CONFIG_SOC_PNX8550=y
-CONFIG_MIPS_L1_CACHE_SHIFT=5
-
-#
-# CPU selection
-#
-CONFIG_CPU_MIPS32_R1=y
-# CONFIG_CPU_MIPS32_R2 is not set
-# CONFIG_CPU_MIPS64_R1 is not set
-# CONFIG_CPU_MIPS64_R2 is not set
-# CONFIG_CPU_R3000 is not set
-# CONFIG_CPU_TX39XX is not set
-# CONFIG_CPU_VR41XX is not set
-# CONFIG_CPU_R4300 is not set
-# CONFIG_CPU_R4X00 is not set
-# CONFIG_CPU_TX49XX is not set
-# CONFIG_CPU_R5000 is not set
-# CONFIG_CPU_R5432 is not set
-# CONFIG_CPU_R6000 is not set
-# CONFIG_CPU_NEVADA is not set
-# CONFIG_CPU_R8000 is not set
-# CONFIG_CPU_R10000 is not set
-# CONFIG_CPU_RM7000 is not set
-# CONFIG_CPU_RM9000 is not set
-# CONFIG_CPU_SB1 is not set
-CONFIG_SYS_HAS_CPU_MIPS32_R1=y
-CONFIG_CPU_MIPS32=y
-CONFIG_CPU_MIPSR1=y
-CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
-
-#
-# Kernel type
-#
-CONFIG_32BIT=y
-# CONFIG_64BIT is not set
-CONFIG_PAGE_SIZE_4KB=y
-# CONFIG_PAGE_SIZE_8KB is not set
-# CONFIG_PAGE_SIZE_16KB is not set
-# CONFIG_PAGE_SIZE_64KB is not set
-CONFIG_CPU_HAS_PREFETCH=y
-CONFIG_MIPS_MT_DISABLED=y
-# CONFIG_MIPS_MT_SMP is not set
-# CONFIG_MIPS_MT_SMTC is not set
-# CONFIG_MIPS_VPE_LOADER is not set
-# CONFIG_64BIT_PHYS_ADDR is not set
-CONFIG_CPU_HAS_LLSC=y
-CONFIG_CPU_HAS_SYNC=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_CPU_SUPPORTS_HIGHMEM=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-# CONFIG_DISCONTIGMEM_MANUAL is not set
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_RESOURCES_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_HZ_48 is not set
-# CONFIG_HZ_100 is not set
-# CONFIG_HZ_128 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_256 is not set
-# CONFIG_HZ_1000 is not set
-# CONFIG_HZ_1024 is not set
-CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
-CONFIG_HZ=250
-CONFIG_PREEMPT_NONE=y
-# CONFIG_PREEMPT_VOLUNTARY is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_KEXEC is not set
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
-
-#
-# Code maturity level options
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=32
-
-#
-# General setup
-#
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-# CONFIG_IPC_NS is not set
-CONFIG_SYSVIPC_SYSCTL=y
-# CONFIG_POSIX_MQUEUE is not set
-# CONFIG_BSD_PROCESS_ACCT is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_UTS_NS is not set
-# CONFIG_AUDIT is not set
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_RELAY is not set
-CONFIG_INITRAMFS_SOURCE=""
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_SYSCTL=y
-CONFIG_EMBEDDED=y
-# CONFIG_SYSCTL_SYSCALL is not set
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_EXTRA_PASS is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SHMEM=y
-CONFIG_SLAB=y
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_RT_MUTEXES=y
-# CONFIG_TINY_SHMEM is not set
-CONFIG_BASE_SMALL=0
-# CONFIG_SLOB is not set
-
-#
-# Loadable module support
-#
-CONFIG_MODULES=y
-# CONFIG_MODULE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_KMOD=y
-
-#
-# Block layer
-#
-CONFIG_BLOCK=y
-# CONFIG_LBD is not set
-# CONFIG_BLK_DEV_IO_TRACE is not set
-# CONFIG_LSF is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
-CONFIG_DEFAULT_AS=y
-# CONFIG_DEFAULT_DEADLINE is not set
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="anticipatory"
-
-#
-# Bus options (PCI, PCMCIA, EISA, ISA, TC)
-#
-CONFIG_HW_HAS_PCI=y
-CONFIG_PCI=y
-CONFIG_MMU=y
-
-#
-# PCCARD (PCMCIA/CardBus) support
-#
-# CONFIG_PCCARD is not set
-
-#
-# PCI Hotplug Support
-#
-# CONFIG_HOTPLUG_PCI is not set
-
-#
-# Executable file formats
-#
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_TRAD_SIGNALS=y
-
-#
-# Power management options
-#
-CONFIG_PM=y
-# CONFIG_PM_LEGACY is not set
-# CONFIG_PM_DEBUG is not set
-# CONFIG_PM_SYSFS_DEPRECATED is not set
-
-#
-# Networking
-#
-CONFIG_NET=y
-
-#
-# Networking options
-#
-# CONFIG_NETDEBUG is not set
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-CONFIG_XFRM_MIGRATE=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-CONFIG_IP_FIB_HASH=y
-CONFIG_IP_PNP=y
-# CONFIG_IP_PNP_DHCP is not set
-# CONFIG_IP_PNP_BOOTP is not set
-# CONFIG_IP_PNP_RARP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-CONFIG_INET_TUNNEL=m
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-CONFIG_TCP_MD5SIG=y
-
-#
-# IP: Virtual Server Configuration
-#
-# CONFIG_IP_VS is not set
-CONFIG_IPV6=m
-# CONFIG_IPV6_PRIVACY is not set
-CONFIG_IPV6_ROUTER_PREF=y
-CONFIG_IPV6_ROUTE_INFO=y
-# CONFIG_INET6_AH is not set
-# CONFIG_INET6_ESP is not set
-# CONFIG_INET6_IPCOMP is not set
-# CONFIG_IPV6_MIP6 is not set
-# CONFIG_INET6_XFRM_TUNNEL is not set
-# CONFIG_INET6_TUNNEL is not set
-CONFIG_INET6_XFRM_MODE_TRANSPORT=m
-CONFIG_INET6_XFRM_MODE_TUNNEL=m
-CONFIG_INET6_XFRM_MODE_BEET=m
-# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
-CONFIG_IPV6_SIT=m
-# CONFIG_IPV6_TUNNEL is not set
-# CONFIG_IPV6_MULTIPLE_TABLES is not set
-# CONFIG_NETWORK_SECMARK is not set
-CONFIG_NETFILTER=y
-# CONFIG_NETFILTER_DEBUG is not set
-
-#
-# Core Netfilter Configuration
-#
-# CONFIG_NETFILTER_NETLINK is not set
-CONFIG_NF_CONNTRACK_ENABLED=m
-CONFIG_NF_CONNTRACK_SUPPORT=y
-# CONFIG_IP_NF_CONNTRACK_SUPPORT is not set
-CONFIG_NF_CONNTRACK=m
-CONFIG_NF_CT_ACCT=y
-CONFIG_NF_CONNTRACK_MARK=y
-CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_GRE=m
-CONFIG_NF_CT_PROTO_SCTP=m
-CONFIG_NF_CONNTRACK_AMANDA=m
-CONFIG_NF_CONNTRACK_FTP=m
-CONFIG_NF_CONNTRACK_H323=m
-CONFIG_NF_CONNTRACK_IRC=m
-# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
-CONFIG_NF_CONNTRACK_PPTP=m
-CONFIG_NF_CONNTRACK_SANE=m
-CONFIG_NF_CONNTRACK_SIP=m
-CONFIG_NF_CONNTRACK_TFTP=m
-CONFIG_NETFILTER_XTABLES=m
-CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
-CONFIG_NETFILTER_XT_TARGET_MARK=m
-CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
-CONFIG_NETFILTER_XT_TARGET_NFLOG=m
-CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
-CONFIG_NETFILTER_XT_MATCH_COMMENT=m
-CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
-CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
-CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
-CONFIG_NETFILTER_XT_MATCH_DCCP=m
-# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
-CONFIG_NETFILTER_XT_MATCH_ESP=m
-CONFIG_NETFILTER_XT_MATCH_HELPER=m
-CONFIG_NETFILTER_XT_MATCH_LENGTH=m
-CONFIG_NETFILTER_XT_MATCH_LIMIT=m
-CONFIG_NETFILTER_XT_MATCH_MAC=m
-CONFIG_NETFILTER_XT_MATCH_MARK=m
-# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
-CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
-CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
-# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
-CONFIG_NETFILTER_XT_MATCH_REALM=m
-CONFIG_NETFILTER_XT_MATCH_SCTP=m
-CONFIG_NETFILTER_XT_MATCH_STATE=m
-# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
-CONFIG_NETFILTER_XT_MATCH_STRING=m
-CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
-CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
-
-#
-# IP: Netfilter Configuration
-#
-CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_NF_CONNTRACK_PROC_COMPAT=y
-# CONFIG_IP_NF_QUEUE is not set
-# CONFIG_IP_NF_IPTABLES is not set
-# CONFIG_IP_NF_ARPTABLES is not set
-
-#
-# IPv6: Netfilter Configuration (EXPERIMENTAL)
-#
-CONFIG_NF_CONNTRACK_IPV6=m
-# CONFIG_IP6_NF_QUEUE is not set
-# CONFIG_IP6_NF_IPTABLES is not set
-
-#
-# DCCP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_DCCP is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-
-#
-# TIPC Configuration (EXPERIMENTAL)
-#
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-CONFIG_NET_CLS_ROUTE=y
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_IEEE80211 is not set
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
-# CONFIG_SYS_HYPERVISOR is not set
-
-#
-# Connector - unified userspace <-> kernelspace linker
-#
-# CONFIG_CONNECTOR is not set
-
-#
-# Memory Technology Devices (MTD)
-#
-# CONFIG_MTD is not set
-
-#
-# Parallel port support
-#
-# CONFIG_PARPORT is not set
-
-#
-# Plug and Play support
-#
-# CONFIG_PNPACPI is not set
-
-#
-# Block devices
-#
-# CONFIG_BLK_CPQ_DA is not set
-# CONFIG_BLK_CPQ_CISS_DA is not set
-# CONFIG_BLK_DEV_DAC960 is not set
-# CONFIG_BLK_DEV_UMEM is not set
-# CONFIG_BLK_DEV_COW_COMMON is not set
-CONFIG_BLK_DEV_LOOP=y
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-# CONFIG_BLK_DEV_NBD is not set
-# CONFIG_BLK_DEV_SX8 is not set
-# CONFIG_BLK_DEV_UB is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CDROM_PKTCDVD is not set
-# CONFIG_ATA_OVER_ETH is not set
-
-#
-# Misc devices
-#
-CONFIG_SGI_IOC4=m
-# CONFIG_TIFM_CORE is not set
-
-#
-# ATA/ATAPI/MFM/RLL support
-#
-CONFIG_IDE=y
-CONFIG_IDE_MAX_HWIFS=4
-CONFIG_BLK_DEV_IDE=y
-
-#
-# Please see Documentation/ide.txt for help/info on IDE drives
-#
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_BLK_DEV_IDEDISK=y
-CONFIG_IDEDISK_MULTI_MODE=y
-# CONFIG_BLK_DEV_IDECD is not set
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_BLK_DEV_IDEFLOPPY is not set
-# CONFIG_BLK_DEV_IDESCSI is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-
-#
-# IDE chipset support/bugfixes
-#
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_IDEPCI=y
-CONFIG_IDEPCI_SHARE_IRQ=y
-# CONFIG_BLK_DEV_OFFBOARD is not set
-# CONFIG_BLK_DEV_GENERIC is not set
-# CONFIG_BLK_DEV_OPTI621 is not set
-CONFIG_BLK_DEV_IDEDMA_PCI=y
-# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
-CONFIG_IDEDMA_PCI_AUTO=y
-# CONFIG_IDEDMA_ONLYDISK is not set
-# CONFIG_BLK_DEV_AEC62XX is not set
-# CONFIG_BLK_DEV_ALI15X3 is not set
-# CONFIG_BLK_DEV_AMD74XX is not set
-CONFIG_BLK_DEV_CMD64X=y
-# CONFIG_BLK_DEV_TRIFLEX is not set
-# CONFIG_BLK_DEV_CY82C693 is not set
-# CONFIG_BLK_DEV_CS5520 is not set
-# CONFIG_BLK_DEV_CS5530 is not set
-# CONFIG_BLK_DEV_HPT34X is not set
-# CONFIG_BLK_DEV_HPT366 is not set
-# CONFIG_BLK_DEV_JMICRON is not set
-# CONFIG_BLK_DEV_SC1200 is not set
-# CONFIG_BLK_DEV_PIIX is not set
-CONFIG_BLK_DEV_IT8213=m
-# CONFIG_BLK_DEV_IT821X is not set
-# CONFIG_BLK_DEV_NS87415 is not set
-# CONFIG_BLK_DEV_PDC202XX_OLD is not set
-# CONFIG_BLK_DEV_PDC202XX_NEW is not set
-# CONFIG_BLK_DEV_SVWKS is not set
-# CONFIG_BLK_DEV_SIIMAGE is not set
-# CONFIG_BLK_DEV_SLC90E66 is not set
-# CONFIG_BLK_DEV_TRM290 is not set
-# CONFIG_BLK_DEV_VIA82CXXX is not set
-CONFIG_BLK_DEV_TC86C001=m
-# CONFIG_IDE_ARM is not set
-CONFIG_BLK_DEV_IDEDMA=y
-# CONFIG_IDEDMA_IVB is not set
-CONFIG_IDEDMA_AUTO=y
-# CONFIG_BLK_DEV_HD is not set
-
-#
-# SCSI device support
-#
-# CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
-CONFIG_SCSI_TGT=m
-CONFIG_SCSI_NETLINK=y
-CONFIG_SCSI_PROC_FS=y
-
-#
-# SCSI support type (disk, tape, CD-ROM)
-#
-CONFIG_BLK_DEV_SD=y
-# CONFIG_CHR_DEV_ST is not set
-# CONFIG_CHR_DEV_OSST is not set
-# CONFIG_BLK_DEV_SR is not set
-# CONFIG_CHR_DEV_SG is not set
-# CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
-# CONFIG_SCSI_MULTI_LUN is not set
-# CONFIG_SCSI_CONSTANTS is not set
-# CONFIG_SCSI_LOGGING is not set
-CONFIG_SCSI_SCAN_ASYNC=y
-
-#
-# SCSI Transports
-#
-CONFIG_SCSI_SPI_ATTRS=m
-CONFIG_SCSI_FC_ATTRS=y
-CONFIG_SCSI_ISCSI_ATTRS=m
-# CONFIG_SCSI_SAS_ATTRS is not set
-# CONFIG_SCSI_SAS_LIBSAS is not set
-
-#
-# SCSI low-level drivers
-#
-CONFIG_ISCSI_TCP=m
-# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
-# CONFIG_SCSI_3W_9XXX is not set
-# CONFIG_SCSI_ACARD is not set
-# CONFIG_SCSI_AACRAID is not set
-CONFIG_SCSI_AIC7XXX=m
-CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
-CONFIG_AIC7XXX_RESET_DELAY_MS=15000
-# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
-CONFIG_AIC7XXX_DEBUG_MASK=0
-# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set
-# CONFIG_SCSI_AIC7XXX_OLD is not set
-# CONFIG_SCSI_AIC79XX is not set
-# CONFIG_SCSI_AIC94XX is not set
-# CONFIG_SCSI_DPT_I2O is not set
-# CONFIG_SCSI_ARCMSR is not set
-# CONFIG_MEGARAID_NEWGEN is not set
-# CONFIG_MEGARAID_LEGACY is not set
-# CONFIG_MEGARAID_SAS is not set
-# CONFIG_SCSI_HPTIOP is not set
-# CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_IPS is not set
-# CONFIG_SCSI_INITIO is not set
-# CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_STEX is not set
-# CONFIG_SCSI_SYM53C8XX_2 is not set
-# CONFIG_SCSI_QLOGIC_1280 is not set
-# CONFIG_SCSI_QLA_FC is not set
-# CONFIG_SCSI_QLA_ISCSI is not set
-# CONFIG_SCSI_LPFC is not set
-# CONFIG_SCSI_DC395x is not set
-# CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_NSP32 is not set
-# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_SRP is not set
-
-#
-# Serial ATA (prod) and Parallel ATA (experimental) drivers
-#
-# CONFIG_ATA is not set
-
-#
-# Multi-device support (RAID and LVM)
-#
-# CONFIG_MD is not set
-
-#
-# Fusion MPT device support
-#
-# CONFIG_FUSION is not set
-# CONFIG_FUSION_SPI is not set
-# CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
-
-#
-# IEEE 1394 (FireWire) support
-#
-# CONFIG_IEEE1394 is not set
-
-#
-# I2O device support
-#
-# CONFIG_I2O is not set
-
-#
-# Network device support
-#
-CONFIG_NETDEVICES=y
-# CONFIG_DUMMY is not set
-# CONFIG_BONDING is not set
-# CONFIG_EQUALIZER is not set
-CONFIG_TUN=m
-
-#
-# ARCnet devices
-#
-# CONFIG_ARCNET is not set
-
-#
-# PHY device support
-#
-# CONFIG_PHYLIB is not set
-
-#
-# Ethernet (10 or 100Mbit)
-#
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-# CONFIG_HAPPYMEAL is not set
-# CONFIG_SUNGEM is not set
-# CONFIG_CASSINI is not set
-# CONFIG_NET_VENDOR_3COM is not set
-# CONFIG_DM9000 is not set
-
-#
-# Tulip family network device support
-#
-# CONFIG_NET_TULIP is not set
-# CONFIG_HP100 is not set
-CONFIG_NET_PCI=y
-# CONFIG_PCNET32 is not set
-# CONFIG_AMD8111_ETH is not set
-# CONFIG_ADAPTEC_STARFIRE is not set
-# CONFIG_B44 is not set
-# CONFIG_FORCEDETH is not set
-# CONFIG_DGRS is not set
-# CONFIG_EEPRO100 is not set
-# CONFIG_E100 is not set
-# CONFIG_FEALNX is not set
-CONFIG_NATSEMI=y
-# CONFIG_NE2K_PCI is not set
-# CONFIG_8139CP is not set
-CONFIG_8139TOO=y
-# CONFIG_8139TOO_PIO is not set
-# CONFIG_8139TOO_TUNE_TWISTER is not set
-# CONFIG_8139TOO_8129 is not set
-# CONFIG_8139_OLD_RX_RESET is not set
-# CONFIG_SIS900 is not set
-# CONFIG_EPIC100 is not set
-# CONFIG_SUNDANCE is not set
-# CONFIG_TLAN is not set
-# CONFIG_VIA_RHINE is not set
-# CONFIG_SC92031 is not set
-
-#
-# Ethernet (1000 Mbit)
-#
-# CONFIG_ACENIC is not set
-# CONFIG_DL2K is not set
-# CONFIG_E1000 is not set
-# CONFIG_NS83820 is not set
-# CONFIG_HAMACHI is not set
-# CONFIG_YELLOWFIN is not set
-# CONFIG_R8169 is not set
-# CONFIG_SIS190 is not set
-# CONFIG_SKGE is not set
-# CONFIG_SKY2 is not set
-# CONFIG_SK98LIN is not set
-# CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
-# CONFIG_BNX2 is not set
-# CONFIG_QLA3XXX is not set
-# CONFIG_ATL1 is not set
-
-#
-# Ethernet (10000 Mbit)
-#
-# CONFIG_CHELSIO_T1 is not set
-CONFIG_CHELSIO_T3=m
-# CONFIG_IXGB is not set
-# CONFIG_S2IO is not set
-# CONFIG_MYRI10GE is not set
-CONFIG_NETXEN_NIC=m
-
-#
-# Token Ring devices
-#
-# CONFIG_TR is not set
-
-#
-# Wireless LAN (non-hamradio)
-#
-# CONFIG_NET_RADIO is not set
-
-#
-# Wan interfaces
-#
-# CONFIG_WAN is not set
-# CONFIG_FDDI is not set
-# CONFIG_HIPPI is not set
-CONFIG_PPP=m
-# CONFIG_PPP_MULTILINK is not set
-# CONFIG_PPP_FILTER is not set
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_SYNC_TTY=m
-CONFIG_PPP_DEFLATE=m
-# CONFIG_PPP_BSDCOMP is not set
-CONFIG_PPP_MPPE=m
-# CONFIG_PPPOE is not set
-# CONFIG_SLIP is not set
-CONFIG_SLHC=m
-# CONFIG_NET_FC is not set
-# CONFIG_SHAPER is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-
-#
-# ISDN subsystem
-#
-# CONFIG_ISDN is not set
-
-#
-# Telephony Support
-#
-# CONFIG_PHONE is not set
-
-#
-# Input device support
-#
-CONFIG_INPUT=y
-# CONFIG_INPUT_FF_MEMLESS is not set
-
-#
-# Userland interfaces
-#
-CONFIG_INPUT_MOUSEDEV=y
-CONFIG_INPUT_MOUSEDEV_PSAUX=y
-CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
-CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-# CONFIG_INPUT_JOYDEV is not set
-# CONFIG_INPUT_TSDEV is not set
-CONFIG_INPUT_EVDEV=m
-# CONFIG_INPUT_EVBUG is not set
-
-#
-# Input Device Drivers
-#
-CONFIG_INPUT_KEYBOARD=y
-CONFIG_KEYBOARD_ATKBD=y
-# CONFIG_KEYBOARD_SUNKBD is not set
-# CONFIG_KEYBOARD_LKKBD is not set
-# CONFIG_KEYBOARD_XTKBD is not set
-# CONFIG_KEYBOARD_NEWTON is not set
-# CONFIG_KEYBOARD_STOWAWAY is not set
-CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
-# CONFIG_MOUSE_SERIAL is not set
-# CONFIG_MOUSE_VSXXXAA is not set
-# CONFIG_INPUT_JOYSTICK is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
-# CONFIG_INPUT_MISC is not set
-
-#
-# Hardware I/O ports
-#
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_PCIPS2 is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_SERIO_RAW is not set
-# CONFIG_GAMEPORT is not set
-
-#
-# Character devices
-#
-CONFIG_VT=y
-# CONFIG_VT_CONSOLE is not set
-CONFIG_HW_CONSOLE=y
-# CONFIG_VT_HW_CONSOLE_BINDING is not set
-CONFIG_SERIAL_NONSTANDARD=y
-# CONFIG_COMPUTONE is not set
-# CONFIG_ROCKETPORT is not set
-# CONFIG_CYCLADES is not set
-# CONFIG_DIGIEPCA is not set
-# CONFIG_MOXA_INTELLIO is not set
-# CONFIG_MOXA_SMARTIO is not set
-CONFIG_MOXA_SMARTIO_NEW=m
-# CONFIG_ISI is not set
-# CONFIG_SYNCLINKMP is not set
-# CONFIG_SYNCLINK_GT is not set
-# CONFIG_N_HDLC is not set
-# CONFIG_RISCOM8 is not set
-# CONFIG_SPECIALIX is not set
-# CONFIG_SX is not set
-# CONFIG_RIO is not set
-# CONFIG_STALDRV is not set
-
-#
-# Serial drivers
-#
-# CONFIG_SERIAL_8250 is not set
-
-#
-# Non-8250 serial port support
-#
-CONFIG_SERIAL_PNX8XXX=y
-CONFIG_SERIAL_PNX8XXX_CONSOLE=y
-CONFIG_SERIAL_CORE=y
-CONFIG_SERIAL_CORE_CONSOLE=y
-# CONFIG_SERIAL_JSM is not set
-CONFIG_UNIX98_PTYS=y
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
-
-#
-# IPMI
-#
-# CONFIG_IPMI_HANDLER is not set
-
-#
-# Watchdog Cards
-#
-# CONFIG_WATCHDOG is not set
-CONFIG_HW_RANDOM=y
-# CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
-# CONFIG_DTLK is not set
-# CONFIG_R3964 is not set
-# CONFIG_APPLICOM is not set
-# CONFIG_DRM is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# TPM devices
-#
-# CONFIG_TCG_TPM is not set
-
-#
-# I2C support
-#
-CONFIG_I2C=m
-CONFIG_I2C_CHARDEV=m
-
-#
-# I2C Algorithms
-#
-CONFIG_I2C_ALGOBIT=m
-# CONFIG_I2C_ALGOPCF is not set
-# CONFIG_I2C_ALGOPCA is not set
-
-#
-# I2C Hardware Bus support
-#
-# CONFIG_I2C_ALI1535 is not set
-# CONFIG_I2C_ALI1563 is not set
-# CONFIG_I2C_ALI15X3 is not set
-# CONFIG_I2C_AMD756 is not set
-# CONFIG_I2C_AMD8111 is not set
-# CONFIG_I2C_I801 is not set
-# CONFIG_I2C_I810 is not set
-# CONFIG_I2C_PIIX4 is not set
-# CONFIG_I2C_NFORCE2 is not set
-# CONFIG_I2C_OCORES is not set
-# CONFIG_I2C_PARPORT_LIGHT is not set
-# CONFIG_I2C_PASEMI is not set
-# CONFIG_I2C_PROSAVAGE is not set
-# CONFIG_I2C_SAVAGE4 is not set
-# CONFIG_I2C_SIS5595 is not set
-# CONFIG_I2C_SIS630 is not set
-# CONFIG_I2C_SIS96X is not set
-# CONFIG_I2C_STUB is not set
-# CONFIG_I2C_VIA is not set
-# CONFIG_I2C_VIAPRO is not set
-# CONFIG_I2C_VOODOO3 is not set
-# CONFIG_I2C_PCA_ISA is not set
-
-#
-# Miscellaneous I2C Chip support
-#
-# CONFIG_SENSORS_DS1337 is not set
-# CONFIG_SENSORS_DS1374 is not set
-# CONFIG_SENSORS_EEPROM is not set
-# CONFIG_SENSORS_PCF8574 is not set
-# CONFIG_SENSORS_PCA9539 is not set
-# CONFIG_SENSORS_PCF8591 is not set
-# CONFIG_SENSORS_MAX6875 is not set
-# CONFIG_I2C_DEBUG_CORE is not set
-# CONFIG_I2C_DEBUG_ALGO is not set
-# CONFIG_I2C_DEBUG_BUS is not set
-# CONFIG_I2C_DEBUG_CHIP is not set
-
-#
-# SPI support
-#
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
-
-#
-# Dallas's 1-wire bus
-#
-# CONFIG_W1 is not set
-
-#
-# Hardware Monitoring support
-#
-CONFIG_HWMON=y
-# CONFIG_HWMON_VID is not set
-# CONFIG_SENSORS_ABITUGURU is not set
-# CONFIG_SENSORS_ADM1021 is not set
-# CONFIG_SENSORS_ADM1025 is not set
-# CONFIG_SENSORS_ADM1026 is not set
-# CONFIG_SENSORS_ADM1029 is not set
-# CONFIG_SENSORS_ADM1031 is not set
-# CONFIG_SENSORS_ADM9240 is not set
-# CONFIG_SENSORS_ASB100 is not set
-# CONFIG_SENSORS_ATXP1 is not set
-# CONFIG_SENSORS_DS1621 is not set
-# CONFIG_SENSORS_F71805F is not set
-# CONFIG_SENSORS_FSCHER is not set
-# CONFIG_SENSORS_FSCPOS is not set
-# CONFIG_SENSORS_GL518SM is not set
-# CONFIG_SENSORS_GL520SM is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_LM63 is not set
-# CONFIG_SENSORS_LM75 is not set
-# CONFIG_SENSORS_LM77 is not set
-# CONFIG_SENSORS_LM78 is not set
-# CONFIG_SENSORS_LM80 is not set
-# CONFIG_SENSORS_LM83 is not set
-# CONFIG_SENSORS_LM85 is not set
-# CONFIG_SENSORS_LM87 is not set
-# CONFIG_SENSORS_LM90 is not set
-# CONFIG_SENSORS_LM92 is not set
-# CONFIG_SENSORS_MAX1619 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_PC87427 is not set
-# CONFIG_SENSORS_SIS5595 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_SMSC47M192 is not set
-# CONFIG_SENSORS_SMSC47B397 is not set
-# CONFIG_SENSORS_VIA686A is not set
-# CONFIG_SENSORS_VT1211 is not set
-# CONFIG_SENSORS_VT8231 is not set
-# CONFIG_SENSORS_W83781D is not set
-# CONFIG_SENSORS_W83791D is not set
-# CONFIG_SENSORS_W83792D is not set
-# CONFIG_SENSORS_W83793 is not set
-# CONFIG_SENSORS_W83L785TS is not set
-# CONFIG_SENSORS_W83627HF is not set
-# CONFIG_SENSORS_W83627EHF is not set
-# CONFIG_HWMON_DEBUG_CHIP is not set
-
-#
-# Multimedia devices
-#
-# CONFIG_VIDEO_DEV is not set
-
-#
-# Digital Video Broadcasting Devices
-#
-# CONFIG_DVB is not set
-# CONFIG_USB_DABUSB is not set
-
-#
-# Graphics support
-#
-CONFIG_FIRMWARE_EDID=y
-CONFIG_FB=y
-# CONFIG_FB_DDC is not set
-# CONFIG_FB_CFB_FILLRECT is not set
-# CONFIG_FB_CFB_COPYAREA is not set
-# CONFIG_FB_CFB_IMAGEBLIT is not set
-# CONFIG_FB_SVGALIB is not set
-# CONFIG_FB_MACMODES is not set
-# CONFIG_FB_BACKLIGHT is not set
-# CONFIG_FB_MODE_HELPERS is not set
-# CONFIG_FB_TILEBLITTING is not set
-# CONFIG_FB_CIRRUS is not set
-# CONFIG_FB_PM2 is not set
-# CONFIG_FB_CYBER2000 is not set
-# CONFIG_FB_ASILIANT is not set
-# CONFIG_FB_IMSTT is not set
-# CONFIG_FB_S1D13XXX is not set
-# CONFIG_FB_NVIDIA is not set
-# CONFIG_FB_RIVA is not set
-# CONFIG_FB_MATROX is not set
-# CONFIG_FB_RADEON is not set
-# CONFIG_FB_ATY128 is not set
-# CONFIG_FB_ATY is not set
-# CONFIG_FB_S3 is not set
-# CONFIG_FB_SAVAGE is not set
-# CONFIG_FB_SIS is not set
-# CONFIG_FB_NEOMAGIC is not set
-# CONFIG_FB_KYRO is not set
-# CONFIG_FB_3DFX is not set
-# CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_SMIVGX is not set
-# CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_VIRTUAL is not set
-
-#
-# Console display driver support
-#
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_DUMMY_CONSOLE=y
-# CONFIG_FRAMEBUFFER_CONSOLE is not set
-
-#
-# Logo configuration
-#
-# CONFIG_LOGO is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
-
-#
-# Sound
-#
-# CONFIG_SOUND is not set
-
-#
-# HID Devices
-#
-CONFIG_HID=y
-# CONFIG_HID_DEBUG is not set
-
-#
-# USB support
-#
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-CONFIG_USB=y
-# CONFIG_USB_DEBUG is not set
-
-#
-# Miscellaneous USB options
-#
-CONFIG_USB_DEVICEFS=y
-# CONFIG_USB_DYNAMIC_MINORS is not set
-# CONFIG_USB_SUSPEND is not set
-# CONFIG_USB_OTG is not set
-
-#
-# USB Host Controller Drivers
-#
-# CONFIG_USB_EHCI_HCD is not set
-# CONFIG_USB_ISP116X_HCD is not set
-# CONFIG_USB_OHCI_HCD is not set
-# CONFIG_USB_UHCI_HCD is not set
-# CONFIG_USB_SL811_HCD is not set
-
-#
-# USB Device Class drivers
-#
-# CONFIG_USB_ACM is not set
-# CONFIG_USB_PRINTER is not set
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
-#
-
-#
-# may also be needed; see USB_STORAGE Help for more information
-#
-CONFIG_USB_STORAGE=y
-# CONFIG_USB_STORAGE_DEBUG is not set
-# CONFIG_USB_STORAGE_DATAFAB is not set
-# CONFIG_USB_STORAGE_FREECOM is not set
-# CONFIG_USB_STORAGE_ISD200 is not set
-# CONFIG_USB_STORAGE_DPCM is not set
-# CONFIG_USB_STORAGE_USBAT is not set
-# CONFIG_USB_STORAGE_SDDR09 is not set
-# CONFIG_USB_STORAGE_SDDR55 is not set
-# CONFIG_USB_STORAGE_JUMPSHOT is not set
-# CONFIG_USB_STORAGE_ALAUDA is not set
-# CONFIG_USB_STORAGE_KARMA is not set
-# CONFIG_USB_LIBUSUAL is not set
-
-#
-# USB Input Devices
-#
-CONFIG_USB_HID=y
-# CONFIG_USB_HIDINPUT_POWERBOOK is not set
-# CONFIG_HID_FF is not set
-CONFIG_USB_HIDDEV=y
-# CONFIG_USB_AIPTEK is not set
-# CONFIG_USB_WACOM is not set
-# CONFIG_USB_ACECAD is not set
-# CONFIG_USB_KBTAB is not set
-# CONFIG_USB_POWERMATE is not set
-# CONFIG_USB_TOUCHSCREEN is not set
-# CONFIG_USB_YEALINK is not set
-# CONFIG_USB_XPAD is not set
-# CONFIG_USB_ATI_REMOTE is not set
-# CONFIG_USB_ATI_REMOTE2 is not set
-# CONFIG_USB_KEYSPAN_REMOTE is not set
-# CONFIG_USB_APPLETOUCH is not set
-# CONFIG_USB_GTCO is not set
-
-#
-# USB Imaging devices
-#
-# CONFIG_USB_MDC800 is not set
-# CONFIG_USB_MICROTEK is not set
-
-#
-# USB Network Adapters
-#
-# CONFIG_USB_CATC is not set
-# CONFIG_USB_KAWETH is not set
-# CONFIG_USB_PEGASUS is not set
-# CONFIG_USB_RTL8150 is not set
-# CONFIG_USB_USBNET_MII is not set
-# CONFIG_USB_USBNET is not set
-CONFIG_USB_MON=y
-
-#
-# USB port drivers
-#
-
-#
-# USB Serial Converter support
-#
-# CONFIG_USB_SERIAL is not set
-
-#
-# USB Miscellaneous drivers
-#
-# CONFIG_USB_EMI62 is not set
-# CONFIG_USB_EMI26 is not set
-# CONFIG_USB_ADUTUX is not set
-# CONFIG_USB_AUERSWALD is not set
-# CONFIG_USB_RIO500 is not set
-# CONFIG_USB_LEGOTOWER is not set
-# CONFIG_USB_LCD is not set
-# CONFIG_USB_BERRY_CHARGE is not set
-# CONFIG_USB_LED is not set
-# CONFIG_USB_CYPRESS_CY7C63 is not set
-# CONFIG_USB_CYTHERM is not set
-# CONFIG_USB_PHIDGET is not set
-# CONFIG_USB_IDMOUSE is not set
-# CONFIG_USB_FTDI_ELAN is not set
-# CONFIG_USB_APPLEDISPLAY is not set
-# CONFIG_USB_LD is not set
-# CONFIG_USB_TRANCEVIBRATOR is not set
-# CONFIG_USB_TEST is not set
-
-#
-# USB DSL modem support
-#
-
-#
-# USB Gadget Support
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# MMC/SD Card support
-#
-# CONFIG_MMC is not set
-
-#
-# LED devices
-#
-# CONFIG_NEW_LEDS is not set
-
-#
-# LED drivers
-#
-
-#
-# LED Triggers
-#
-
-#
-# InfiniBand support
-#
-# CONFIG_INFINIBAND is not set
-
-#
-# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
-#
-
-#
-# Real Time Clock
-#
-# CONFIG_RTC_CLASS is not set
-
-#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
-# Auxiliary Display support
-#
-
-#
-# Virtualization
-#
-
-#
-# File systems
-#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
-# CONFIG_EXT4DEV_FS is not set
-CONFIG_JBD=y
-# CONFIG_JBD_DEBUG is not set
-CONFIG_FS_MBCACHE=y
-# CONFIG_REISERFS_FS is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-CONFIG_XFS_FS=m
-# CONFIG_XFS_QUOTA is not set
-# CONFIG_XFS_SECURITY is not set
-# CONFIG_XFS_POSIX_ACL is not set
-# CONFIG_XFS_RT is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_ROMFS_FS is not set
-CONFIG_INOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_QUOTA is not set
-CONFIG_DNOTIFY=y
-CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
-# CONFIG_FUSE_FS is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-# CONFIG_ISO9660_FS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-CONFIG_FAT_FS=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-# CONFIG_PROC_KCORE is not set
-CONFIG_PROC_SYSCTL=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
-CONFIG_CONFIGFS_FS=m
-
-#
-# Miscellaneous filesystems
-#
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-CONFIG_CRAMFS=y
-# CONFIG_VXFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-# CONFIG_NFS_V3_ACL is not set
-# CONFIG_NFS_V4 is not set
-# CONFIG_NFS_DIRECTIO is not set
-CONFIG_NFSD=m
-# CONFIG_NFSD_V3 is not set
-# CONFIG_NFSD_TCP is not set
-CONFIG_ROOT_NFS=y
-CONFIG_LOCKD=y
-CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=m
-CONFIG_NFS_COMMON=y
-CONFIG_SUNRPC=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
-# CONFIG_RPCSEC_GSS_SPKM3 is not set
-CONFIG_SMB_FS=m
-# CONFIG_SMB_NLS_DEFAULT is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-# CONFIG_9P_FS is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ASCII is not set
-# CONFIG_NLS_ISO8859_1 is not set
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Distributed Lock Manager
-#
-CONFIG_DLM=m
-CONFIG_DLM_TCP=y
-# CONFIG_DLM_SCTP is not set
-# CONFIG_DLM_DEBUG is not set
-
-#
-# Profiling support
-#
-# CONFIG_PROFILING is not set
-
-#
-# Kernel hacking
-#
-CONFIG_TRACE_IRQFLAGS_SUPPORT=y
-# CONFIG_PRINTK_TIME is not set
-CONFIG_ENABLE_MUST_CHECK=y
-# CONFIG_MAGIC_SYSRQ is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_HEADERS_CHECK is not set
-# CONFIG_DEBUG_KERNEL is not set
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_CROSSCOMPILE=y
-CONFIG_CMDLINE=""
-CONFIG_SYS_SUPPORTS_KGDB=y
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY is not set
-
-#
-# Cryptographic options
-#
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ALGAPI=y
-CONFIG_CRYPTO_BLKCIPHER=m
-CONFIG_CRYPTO_HASH=m
-CONFIG_CRYPTO_MANAGER=m
-# CONFIG_CRYPTO_HMAC is not set
-CONFIG_CRYPTO_XCBC=m
-# CONFIG_CRYPTO_NULL is not set
-# CONFIG_CRYPTO_MD4 is not set
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_SHA1=m
-# CONFIG_CRYPTO_SHA256 is not set
-# CONFIG_CRYPTO_SHA512 is not set
-# CONFIG_CRYPTO_WP512 is not set
-# CONFIG_CRYPTO_TGR192 is not set
-CONFIG_CRYPTO_GF128MUL=m
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_CBC=m
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_LRW=m
-# CONFIG_CRYPTO_DES is not set
-CONFIG_CRYPTO_FCRYPT=m
-# CONFIG_CRYPTO_BLOWFISH is not set
-# CONFIG_CRYPTO_TWOFISH is not set
-# CONFIG_CRYPTO_SERPENT is not set
-# CONFIG_CRYPTO_AES is not set
-# CONFIG_CRYPTO_CAST5 is not set
-# CONFIG_CRYPTO_CAST6 is not set
-# CONFIG_CRYPTO_TEA is not set
-CONFIG_CRYPTO_ARC4=m
-# CONFIG_CRYPTO_KHAZAD is not set
-# CONFIG_CRYPTO_ANUBIS is not set
-# CONFIG_CRYPTO_DEFLATE is not set
-# CONFIG_CRYPTO_MICHAEL_MIC is not set
-CONFIG_CRYPTO_CRC32C=m
-CONFIG_CRYPTO_CAMELLIA=m
-# CONFIG_CRYPTO_TEST is not set
-
-#
-# Hardware crypto devices
-#
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-CONFIG_CRC_CCITT=m
-# CONFIG_CRC16 is not set
-CONFIG_CRC32=y
-CONFIG_LIBCRC32C=m
-CONFIG_ZLIB_INFLATE=y
-CONFIG_ZLIB_DEFLATE=m
-CONFIG_TEXTSEARCH=y
-CONFIG_TEXTSEARCH_KMP=m
-CONFIG_TEXTSEARCH_BM=m
-CONFIG_TEXTSEARCH_FSM=m
-CONFIG_PLIST=y
-CONFIG_HAS_IOMEM=y
-CONFIG_HAS_IOPORT=y
#include <linux/kernel.h>
#include <asm/gt64120.h>
-extern struct pci_ops gt64120_pci_ops;
+extern struct pci_ops gt64xxx_pci0_ops;
static struct resource pci0_io_resource = {
.name = "pci_0 io",
};
static struct pci_controller hose_0 = {
- .pci_ops = >64120_pci_ops,
+ .pci_ops = >64xxx_pci0_ops,
.io_resource = &pci0_io_resource,
.mem_resource = &pci0_mem_resource,
};
#include <asm/bootinfo.h>
-extern int prom_argc;
-extern char **prom_argv, **prom_envp;
-
-typedef struct
-{
- char *name;
-/* char *val; */
-}t_env_var;
-
-
char * __init prom_getcmdline(void)
{
return &(arcs_cmdline[0]);
{
char *cp;
int actr;
+ int prom_argc = fw_arg0;
+ char **prom_argv = (char **) fw_arg1;
actr = 1; /* Always ignore argv[0] */
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/types.h>
-#include <asm/jmr3927/txx927.h>
#include <asm/jmr3927/tx3927.h>
-#include <asm/jmr3927/jmr3927.h>
#define TIMEOUT 0xffffff
-#define SLOW_DOWN
-
-static const char digits[16] = "0123456789abcdef";
-
-#ifdef SLOW_DOWN
-#define slow_down() { int k; for (k=0; k<10000; k++); }
-#else
-#define slow_down()
-#endif
void
-putch(const unsigned char c)
+prom_putchar(char c)
{
int i = 0;
do {
- slow_down();
i++;
- if (i>TIMEOUT) {
+ if (i>TIMEOUT)
break;
- }
} while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
tx3927_sioptr(1)->tfifo = c;
return;
}
-unsigned char getch(void)
-{
- int i = 0;
- int dicr;
- char c;
-
- /* diable RX int. */
- dicr = tx3927_sioptr(1)->dicr;
- tx3927_sioptr(1)->dicr = 0;
-
- do {
- slow_down();
- i++;
- if (i>TIMEOUT) {
- break;
- }
- } while (tx3927_sioptr(1)->disr & TXx927_SIDISR_UVALID)
- ;
- c = tx3927_sioptr(1)->rfifo;
-
- /* clear RX int. status */
- tx3927_sioptr(1)->disr &= ~TXx927_SIDISR_RDIS;
- /* enable RX int. */
- tx3927_sioptr(1)->dicr = dicr;
-
- return c;
-}
-void
-do_jmr3927_led_set(char n)
-{
- /* and with current leds */
- jmr3927_led_and_set(n);
-}
-
void
-puts(unsigned char *cp)
+puts(const char *cp)
{
- int i = 0;
-
- while (*cp) {
- do {
- slow_down();
- i++;
- if (i>TIMEOUT) {
- break;
- }
- } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
- tx3927_sioptr(1)->tfifo = *cp++;
- }
- putch('\r');
- putch('\n');
-}
-
-void
-fputs(unsigned char *cp)
-{
- int i = 0;
-
- while (*cp) {
- do {
- slow_down();
- i++;
- if (i>TIMEOUT) {
- break;
- }
- } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
- tx3927_sioptr(1)->tfifo = *cp++;
- }
-}
-
-
-void
-put64(uint64_t ul)
-{
- int cnt;
- unsigned ch;
-
- cnt = 16; /* 16 nibbles in a 64 bit long */
- putch('0');
- putch('x');
- do {
- cnt--;
- ch = (unsigned char)(ul >> cnt * 4) & 0x0F;
- putch(digits[ch]);
- } while (cnt > 0);
-}
-
-void
-put32(unsigned u)
-{
- int cnt;
- unsigned ch;
-
- cnt = 8; /* 8 nibbles in a 32 bit long */
- putch('0');
- putch('x');
- do {
- cnt--;
- ch = (unsigned char)(u >> cnt * 4) & 0x0F;
- putch(digits[ch]);
- } while (cnt > 0);
+ while (*cp)
+ prom_putchar(*cp++);
+ prom_putchar('\r');
+ prom_putchar('\n');
}
#
obj-y += init.o irq.o setup.o
-obj-$(CONFIG_RUNTIME_DEBUG) += debug.o
obj-$(CONFIG_KGDB) += kgdb_io.o
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/bootmem.h>
-
-#include <asm/addrspace.h>
#include <asm/bootinfo.h>
-#include <asm/mipsregs.h>
#include <asm/jmr3927/jmr3927.h>
-int prom_argc;
-char **prom_argv, **prom_envp;
extern void __init prom_init_cmdline(void);
-extern char *prom_getenv(char *envname);
-unsigned long mips_nofpu = 0;
const char *get_system_type(void)
{
;
}
-extern void puts(unsigned char *cp);
+extern void puts(const char *cp);
void __init prom_init(void)
{
if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
puts("Warning: TX3927 TLB off\n");
#endif
- prom_argc = fw_arg0;
- prom_argv = (char **) fw_arg1;
- prom_envp = (char **) fw_arg2;
-
mips_machgroup = MACH_GROUP_TOSHIBA;
#ifdef CONFIG_TOSHIBA_JMR3927
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
-
-#include <linux/errno.h>
-#include <linux/irq.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/bitops.h>
-#include <asm/irq_regs.h>
#include <asm/io.h>
#include <asm/mipsregs.h>
#include <asm/system.h>
-#include <asm/ptrace.h>
#include <asm/processor.h>
-#include <asm/jmr3927/irq.h>
-#include <asm/debug.h>
#include <asm/jmr3927/jmr3927.h>
#if JMR3927_IRQ_END > NR_IRQS
#error JMR3927_IRQ_END > NR_IRQS
#endif
-struct tb_irq_space* tb_irq_spaces;
-
-static int jmr3927_irq_base = -1;
-
-#ifdef CONFIG_PCI
-static int jmr3927_gen_iack(void)
-{
- /* generate ACK cycle */
-#ifdef __BIG_ENDIAN
- return (tx3927_pcicptr->iiadp >> 24) & 0xff;
-#else
- return tx3927_pcicptr->iiadp & 0xff;
-#endif
-}
-#endif
-
#define irc_dlevel 0
#define irc_elevel 1
6, 6, 6 /* TMR */
};
-static void jmr3927_irq_disable(unsigned int irq_nr);
-static void jmr3927_irq_enable(unsigned int irq_nr);
-
-static void jmr3927_irq_ack(unsigned int irq)
-{
- if (irq == JMR3927_IRQ_IRC_TMR0)
- jmr3927_tmrptr->tisr = 0; /* ack interrupt */
-
- jmr3927_irq_disable(irq);
-}
-
-static void jmr3927_irq_end(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
- jmr3927_irq_enable(irq);
-}
-
-static void jmr3927_irq_disable(unsigned int irq_nr)
-{
- struct tb_irq_space* sp;
-
- for (sp = tb_irq_spaces; sp; sp = sp->next) {
- if (sp->start_irqno <= irq_nr &&
- irq_nr < sp->start_irqno + sp->nr_irqs) {
- if (sp->mask_func)
- sp->mask_func(irq_nr - sp->start_irqno,
- sp->space_id);
- break;
- }
- }
-}
-
-static void jmr3927_irq_enable(unsigned int irq_nr)
-{
- struct tb_irq_space* sp;
-
- for (sp = tb_irq_spaces; sp; sp = sp->next) {
- if (sp->start_irqno <= irq_nr &&
- irq_nr < sp->start_irqno + sp->nr_irqs) {
- if (sp->unmask_func)
- sp->unmask_func(irq_nr - sp->start_irqno,
- sp->space_id);
- break;
- }
- }
-}
-
/*
* CP0_STATUS is a thread's resource (saved/restored on context switch).
- * So disable_irq/enable_irq MUST handle IOC/ISAC/IRC registers.
+ * So disable_irq/enable_irq MUST handle IOC/IRC registers.
*/
-static void mask_irq_isac(int irq_nr, int space_id)
-{
- /* 0: mask */
- unsigned char imask =
- jmr3927_isac_reg_in(JMR3927_ISAC_INTM_ADDR);
- unsigned int bit = 1 << irq_nr;
- jmr3927_isac_reg_out(imask & ~bit, JMR3927_ISAC_INTM_ADDR);
- /* flush write buffer */
- (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
-}
-static void unmask_irq_isac(int irq_nr, int space_id)
-{
- /* 0: mask */
- unsigned char imask = jmr3927_isac_reg_in(JMR3927_ISAC_INTM_ADDR);
- unsigned int bit = 1 << irq_nr;
- jmr3927_isac_reg_out(imask | bit, JMR3927_ISAC_INTM_ADDR);
- /* flush write buffer */
- (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
-}
-
-static void mask_irq_ioc(int irq_nr, int space_id)
+static void mask_irq_ioc(unsigned int irq)
{
/* 0: mask */
+ unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
unsigned int bit = 1 << irq_nr;
jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR);
/* flush write buffer */
(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
}
-static void unmask_irq_ioc(int irq_nr, int space_id)
+static void unmask_irq_ioc(unsigned int irq)
{
/* 0: mask */
+ unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
unsigned int bit = 1 << irq_nr;
jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR);
(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
}
-static void mask_irq_irc(int irq_nr, int space_id)
+static void mask_irq_irc(unsigned int irq)
{
+ unsigned int irq_nr = irq - JMR3927_IRQ_IRC;
volatile unsigned long *ilrp = &tx3927_ircptr->ilr[irq_nr / 2];
if (irq_nr & 1)
*ilrp = (*ilrp & 0x00ff) | (irc_dlevel << 8);
(void)tx3927_ircptr->ssr;
}
-static void unmask_irq_irc(int irq_nr, int space_id)
+static void unmask_irq_irc(unsigned int irq)
{
+ unsigned int irq_nr = irq - JMR3927_IRQ_IRC;
volatile unsigned long *ilrp = &tx3927_ircptr->ilr[irq_nr / 2];
if (irq_nr & 1)
*ilrp = (*ilrp & 0x00ff) | (irc_level[irq_nr] << 8);
tx3927_ircptr->imr = irc_elevel;
}
-struct tb_irq_space jmr3927_isac_irqspace = {
- .next = NULL,
- .start_irqno = JMR3927_IRQ_ISAC,
- nr_irqs : JMR3927_NR_IRQ_ISAC,
- .mask_func = mask_irq_isac,
- .unmask_func = unmask_irq_isac,
- .name = "ISAC",
- .space_id = 0,
- can_share : 0
-};
-struct tb_irq_space jmr3927_ioc_irqspace = {
- .next = NULL,
- .start_irqno = JMR3927_IRQ_IOC,
- nr_irqs : JMR3927_NR_IRQ_IOC,
- .mask_func = mask_irq_ioc,
- .unmask_func = unmask_irq_ioc,
- .name = "IOC",
- .space_id = 0,
- can_share : 1
-};
-
-struct tb_irq_space jmr3927_irc_irqspace = {
- .next = NULL,
- .start_irqno = JMR3927_IRQ_IRC,
- .nr_irqs = JMR3927_NR_IRQ_IRC,
- .mask_func = mask_irq_irc,
- .unmask_func = unmask_irq_irc,
- .name = "on-chip",
- .space_id = 0,
- .can_share = 0
-};
-
-
-#ifdef CONFIG_TX_BRANCH_LIKELY_BUG_WORKAROUND
-static int tx_branch_likely_bug_count = 0;
-static int have_tx_branch_likely_bug = 0;
-
-static void tx_branch_likely_bug_fixup(void)
-{
- struct pt_regs *regs = get_irq_regs();
-
- /* TX39/49-BUG: Under this condition, the insn in delay slot
- of the branch likely insn is executed (not nullified) even
- the branch condition is false. */
- if (!have_tx_branch_likely_bug)
- return;
- if ((regs->cp0_epc & 0xfff) == 0xffc &&
- KSEGX(regs->cp0_epc) != KSEG0 &&
- KSEGX(regs->cp0_epc) != KSEG1) {
- unsigned int insn = *(unsigned int*)(regs->cp0_epc - 4);
- /* beql,bnel,blezl,bgtzl */
- /* bltzl,bgezl,blezall,bgezall */
- /* bczfl, bcztl */
- if ((insn & 0xf0000000) == 0x50000000 ||
- (insn & 0xfc0e0000) == 0x04020000 ||
- (insn & 0xf3fe0000) == 0x41020000) {
- regs->cp0_epc -= 4;
- tx_branch_likely_bug_count++;
- printk(KERN_INFO
- "fix branch-likery bug in %s (insn %08x)\n",
- current->comm, insn);
- }
- }
-}
-#endif
-
-static void jmr3927_spurious(void)
-{
- struct pt_regs * regs = get_irq_regs();
-
-#ifdef CONFIG_TX_BRANCH_LIKELY_BUG_WORKAROUND
- tx_branch_likely_bug_fixup();
-#endif
- printk(KERN_WARNING "spurious interrupt (cause 0x%lx, pc 0x%lx, ra 0x%lx).\n",
- regs->cp0_cause, regs->cp0_epc, regs->regs[31]);
-}
-
asmlinkage void plat_irq_dispatch(void)
{
- struct pt_regs * regs = get_irq_regs();
+ unsigned long cp0_cause = read_c0_cause();
int irq;
-#ifdef CONFIG_TX_BRANCH_LIKELY_BUG_WORKAROUND
- tx_branch_likely_bug_fixup();
-#endif
- if ((regs->cp0_cause & CAUSEF_IP7) == 0) {
-#if 0
- jmr3927_spurious();
-#endif
+ if ((cp0_cause & CAUSEF_IP7) == 0)
return;
- }
- irq = (regs->cp0_cause >> CAUSEB_IP2) & 0x0f;
+ irq = (cp0_cause >> CAUSEB_IP2) & 0x0f;
do_IRQ(irq + JMR3927_IRQ_IRC);
}
jmr3927_ioc_interrupt, 0, CPU_MASK_NONE, "IOC", NULL, NULL,
};
-static irqreturn_t jmr3927_isac_interrupt(int irq, void *dev_id)
-{
- unsigned char istat = jmr3927_isac_reg_in(JMR3927_ISAC_INTS2_ADDR);
- int i;
-
- for (i = 0; i < JMR3927_NR_IRQ_ISAC; i++) {
- if (istat & (1 << i)) {
- irq = JMR3927_IRQ_ISAC + i;
- do_IRQ(irq);
- }
- }
- return IRQ_HANDLED;
-}
-
-static struct irqaction isac_action = {
- jmr3927_isac_interrupt, 0, CPU_MASK_NONE, "ISAC", NULL, NULL,
-};
-
-
-static irqreturn_t jmr3927_isaerr_interrupt(int irq, void *dev_id)
-{
- printk(KERN_WARNING "ISA error interrupt (irq 0x%x).\n", irq);
-
- return IRQ_HANDLED;
-}
-static struct irqaction isaerr_action = {
- jmr3927_isaerr_interrupt, 0, CPU_MASK_NONE, "ISA error", NULL, NULL,
-};
-
static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
{
printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
jmr3927_pcierr_interrupt, 0, CPU_MASK_NONE, "PCI error", NULL, NULL,
};
-int jmr3927_ether1_irq = 0;
-
-void jmr3927_irq_init(u32 irq_base);
+static void __init jmr3927_irq_init(void);
void __init arch_init_irq(void)
{
- /* look for io board's presence */
- int have_isac = jmr3927_have_isac();
-
/* Now, interrupt control disabled, */
/* all IRC interrupts are masked, */
/* all IRC interrupt mode are Low Active. */
- if (have_isac) {
-
- /* ETHER1 (NE2000 compatible 10M-Ether) parameter setup */
- /* temporary enable interrupt control */
- tx3927_ircptr->cer = 1;
- /* ETHER1 Int. Is High-Active. */
- if (tx3927_ircptr->ssr & (1 << 0))
- jmr3927_ether1_irq = JMR3927_IRQ_IRC_INT0;
-#if 0 /* INT3 may be asserted by ether0 (even after reboot...) */
- else if (tx3927_ircptr->ssr & (1 << 3))
- jmr3927_ether1_irq = JMR3927_IRQ_IRC_INT3;
-#endif
- /* disable interrupt control */
- tx3927_ircptr->cer = 0;
-
- /* Ether1: High Active */
- if (jmr3927_ether1_irq) {
- int ether1_irc = jmr3927_ether1_irq - JMR3927_IRQ_IRC;
- tx3927_ircptr->cr[ether1_irc / 8] |=
- TX3927_IRCR_HIGH << ((ether1_irc % 8) * 2);
- }
- }
-
/* mask all IOC interrupts */
jmr3927_ioc_reg_out(0, JMR3927_IOC_INTM_ADDR);
/* setup IOC interrupt mode (SOFT:High Active, Others:Low Active) */
jmr3927_ioc_reg_out(JMR3927_IOC_INTF_SOFT, JMR3927_IOC_INTP_ADDR);
- if (have_isac) {
- /* mask all ISAC interrupts */
- jmr3927_isac_reg_out(0, JMR3927_ISAC_INTM_ADDR);
- /* setup ISAC interrupt mode (ISAIRQ3,ISAIRQ5:Low Active ???) */
- jmr3927_isac_reg_out(JMR3927_ISAC_INTF_IRQ3|JMR3927_ISAC_INTF_IRQ5, JMR3927_ISAC_INTP_ADDR);
- }
-
/* clear PCI Soft interrupts */
jmr3927_ioc_reg_out(0, JMR3927_IOC_INTS1_ADDR);
/* clear PCI Reset interrupts */
tx3927_ircptr->cer = TX3927_IRCER_ICE;
tx3927_ircptr->imr = irc_elevel;
- jmr3927_irq_init(NR_ISA_IRQS);
-
- /* setup irq space */
- add_tb_irq_space(&jmr3927_isac_irqspace);
- add_tb_irq_space(&jmr3927_ioc_irqspace);
- add_tb_irq_space(&jmr3927_irc_irqspace);
+ jmr3927_irq_init();
/* setup IOC interrupt 1 (PCI, MODEM) */
setup_irq(JMR3927_IRQ_IOCINT, &ioc_action);
- if (have_isac) {
- setup_irq(JMR3927_IRQ_ISACINT, &isac_action);
- setup_irq(JMR3927_IRQ_ISAC_ISAER, &isaerr_action);
- }
-
#ifdef CONFIG_PCI
setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
#endif
set_c0_status(ST0_IM); /* IE bit is still 0. */
}
-static struct irq_chip jmr3927_irq_controller = {
- .name = "jmr3927_irq",
- .ack = jmr3927_irq_ack,
- .mask = jmr3927_irq_disable,
- .mask_ack = jmr3927_irq_ack,
- .unmask = jmr3927_irq_enable,
- .end = jmr3927_irq_end,
+static struct irq_chip jmr3927_irq_ioc = {
+ .name = "jmr3927_ioc",
+ .ack = mask_irq_ioc,
+ .mask = mask_irq_ioc,
+ .mask_ack = mask_irq_ioc,
+ .unmask = unmask_irq_ioc,
};
-void jmr3927_irq_init(u32 irq_base)
+static struct irq_chip jmr3927_irq_irc = {
+ .name = "jmr3927_irc",
+ .ack = mask_irq_irc,
+ .mask = mask_irq_irc,
+ .mask_ack = mask_irq_irc,
+ .unmask = unmask_irq_irc,
+};
+
+static void __init jmr3927_irq_init(void)
{
u32 i;
- for (i= irq_base; i< irq_base + JMR3927_NR_IRQ_IRC + JMR3927_NR_IRQ_IOC; i++)
- set_irq_chip(i, &jmr3927_irq_controller);
-
- jmr3927_irq_base = irq_base;
+ for (i = JMR3927_IRQ_IRC; i < JMR3927_IRQ_IRC + JMR3927_NR_IRQ_IRC; i++)
+ set_irq_chip_and_handler(i, &jmr3927_irq_irc, handle_level_irq);
+ for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++)
+ set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq);
}
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/types.h>
-#include <asm/jmr3927/txx927.h>
-#include <asm/jmr3927/tx3927.h>
#include <asm/jmr3927/jmr3927.h>
#define TIMEOUT 0xffffff
-#define SLOW_DOWN
-
-static const char digits[16] = "0123456789abcdef";
-
-#ifdef SLOW_DOWN
-#define slow_down() { int k; for (k=0; k<10000; k++); }
-#else
-#define slow_down()
-#endif
static int remoteDebugInitialized = 0;
+static void debugInit(int baud)
int putDebugChar(unsigned char c)
{
return c;
}
-void debugInit(int baud)
+static void debugInit(int baud)
{
- /*
- volatile unsigned long lcr;
- volatile unsigned long dicr;
- volatile unsigned long disr;
- volatile unsigned long cisr;
- volatile unsigned long fcr;
- volatile unsigned long flcr;
- volatile unsigned long bgr;
- volatile unsigned long tfifo;
- volatile unsigned long rfifo;
- */
-
tx3927_sioptr(0)->lcr = 0x020;
tx3927_sioptr(0)->dicr = 0;
tx3927_sioptr(0)->disr = 0x4100;
tx3927_sioptr(0)->flcr = 0x02;
tx3927_sioptr(0)->bgr = ((JMR3927_BASE_BAUD + baud / 2) / baud) |
TXx927_SIBGR_BCLK_T0;
-#if 0
- /*
- * Reset the UART.
- */
- tx3927_sioptr(0)->fcr = TXx927_SIFCR_SWRST;
- while (tx3927_sioptr(0)->fcr & TXx927_SIFCR_SWRST)
- ;
-
- /*
- * and set the speed of the serial port
- * (currently hardwired to 9600 8N1
- */
-
- tx3927_sioptr(0)->lcr = TXx927_SILCR_UMODE_8BIT |
- TXx927_SILCR_USBL_1BIT |
- TXx927_SILCR_SCS_IMCLK_BG;
- tx3927_sioptr(0)->bgr =
- ((JMR3927_BASE_BAUD + baud / 2) / baud) |
- TXx927_SIBGR_BCLK_T0;
-
- /* HW RTS/CTS control */
- if (ser->flags & ASYNC_HAVE_CTS_LINE)
- tx3927_sioptr(0)->flcr = TXx927_SIFLCR_RCS | TXx927_SIFLCR_TES |
- TXx927_SIFLCR_RTSTL_MAX /* 15 */;
- /* Enable RX/TX */
- tx3927_sioptr(0)->flcr &= ~(TXx927_SIFLCR_RSDE | TXx927_SIFLCR_TSDE);
-#endif
}
#include <asm/addrspace.h>
#include <asm/time.h>
-#include <asm/bcache.h>
-#include <asm/irq.h>
#include <asm/reboot.h>
-#include <asm/gdb-stub.h>
#include <asm/jmr3927/jmr3927.h>
#include <asm/mipsregs.h>
-#include <asm/traps.h>
-extern void puts(unsigned char *cp);
+extern void puts(const char *cp);
/* Tick Timer divider */
#define JMR3927_TIMER_CCD 0 /* 1/2 */
#define JMR3927_TIMER_CLK (JMR3927_IMCLK / (2 << JMR3927_TIMER_CCD))
-unsigned char led_state = 0xf;
-
-struct {
- struct resource ram0;
- struct resource ram1;
- struct resource pcimem;
- struct resource iob;
- struct resource ioc;
- struct resource pciio;
- struct resource jmy1394;
- struct resource rom1;
- struct resource rom0;
- struct resource sio0;
- struct resource sio1;
-} jmr3927_resources = {
- {
- .start = 0,
- .end = 0x01FFFFFF,
- .name = "RAM0",
- .flags = IORESOURCE_MEM
- }, {
- .start = 0x02000000,
- .end = 0x03FFFFFF,
- .name = "RAM1",
- .flags = IORESOURCE_MEM
- }, {
- .start = 0x08000000,
- .end = 0x07FFFFFF,
- .name = "PCIMEM",
- .flags = IORESOURCE_MEM
- }, {
- .start = 0x10000000,
- .end = 0x13FFFFFF,
- .name = "IOB"
- }, {
- .start = 0x14000000,
- .end = 0x14FFFFFF,
- .name = "IOC"
- }, {
- .start = 0x15000000,
- .end = 0x15FFFFFF,
- .name = "PCIIO"
- }, {
- .start = 0x1D000000,
- .end = 0x1D3FFFFF,
- .name = "JMY1394"
- }, {
- .start = 0x1E000000,
- .end = 0x1E3FFFFF,
- .name = "ROM1"
- }, {
- .start = 0x1FC00000,
- .end = 0x1FFFFFFF,
- .name = "ROM0"
- }, {
- .start = 0xFFFEF300,
- .end = 0xFFFEF3FF,
- .name = "SIO0"
- }, {
- .start = 0xFFFEF400,
- .end = 0xFFFEF4FF,
- .name = "SIO1"
- },
-};
-
/* don't enable - see errata */
-int jmr3927_ccfg_toeon = 0;
+static int jmr3927_ccfg_toeon;
static inline void do_reset(void)
{
return jiffies * (JMR3927_TIMER_CLK / HZ) + jmr3927_tmrptr->trr;
}
+static void jmr3927_timer_ack(void)
+{
+ jmr3927_tmrptr->tisr = 0; /* ack interrupt */
+}
+
static void __init jmr3927_time_init(void)
{
clocksource_mips.read = jmr3927_hpt_read;
+ mips_timer_ack = jmr3927_timer_ack;
mips_hpt_frequency = JMR3927_TIMER_CLK;
}
setup_irq(JMR3927_IRQ_TICK, irq);
}
-#define USECS_PER_JIFFY (1000000/HZ)
-
-//#undef DO_WRITE_THROUGH
#define DO_WRITE_THROUGH
#define DO_ENABLE_CACHE
/* Reboot on panic */
panic_timeout = 180;
- {
- unsigned int conf;
- conf = read_c0_conf();
- }
-
-#if 1
/* cache setup */
{
unsigned int conf;
write_c0_conf(conf);
write_c0_cache(0);
}
-#endif
/* initialize board */
jmr3927_board_init();
argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "toeon")) != NULL) {
- jmr3927_ccfg_toeon = 1;
- }
+ if ((argptr = strstr(argptr, "toeon")) != NULL)
+ jmr3927_ccfg_toeon = 1;
argptr = prom_getcmdline();
if ((argptr = strstr(argptr, "ip=")) == NULL) {
argptr = prom_getcmdline();
memset(&req, 0, sizeof(req));
req.line = i;
req.iotype = UPIO_MEM;
- req.membase = (char *)TX3927_SIO_REG(i);
+ req.membase = (unsigned char __iomem *)TX3927_SIO_REG(i);
req.mapbase = TX3927_SIO_REG(i);
req.irq = i == 0 ?
JMR3927_IRQ_IRC_SIO0 : JMR3927_IRQ_IRC_SIO1;
static void tx3927_setup(void);
-#ifdef CONFIG_PCI
-unsigned long mips_pci_io_base;
-unsigned long mips_pci_io_size;
-unsigned long mips_pci_mem_base;
-unsigned long mips_pci_mem_size;
-/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
-unsigned long mips_pci_io_pciaddr = 0;
-#endif
-
static void __init jmr3927_board_init(void)
{
- char *argptr;
-
-#ifdef CONFIG_PCI
- mips_pci_io_base = JMR3927_PCIIO;
- mips_pci_io_size = JMR3927_PCIIO_SIZE;
- mips_pci_mem_base = JMR3927_PCIMEM;
- mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
-#endif
-
tx3927_setup();
- if (jmr3927_have_isac()) {
-
-#ifdef CONFIG_FB_E1355
- argptr = prom_getcmdline();
- if ((argptr = strstr(argptr, "video=")) == NULL) {
- argptr = prom_getcmdline();
- strcat(argptr, " video=e1355fb:crt16h");
- }
-#endif
-
-#ifdef CONFIG_BLK_DEV_IDE
- /* overrides PCI-IDE */
-#endif
- }
-
/* SIO0 DTR on */
jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
jmr3927_led_set(0);
-
- if (jmr3927_have_isac())
- jmr3927_io_led_set(0);
printk("JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
jmr3927_dipsw1(), jmr3927_dipsw2(),
jmr3927_dipsw3(), jmr3927_dipsw4());
- if (jmr3927_have_isac())
- printk("JMI-3927IO2 --- ISAC(Rev %d) DIPSW:%01x\n",
- jmr3927_isac_reg_in(JMR3927_ISAC_REV_ADDR) & JMR3927_REV_MASK,
- jmr3927_io_dipsw());
}
-void __init tx3927_setup(void)
+static void __init tx3927_setup(void)
{
int i;
+#ifdef CONFIG_PCI
+ unsigned long mips_pci_io_base = JMR3927_PCIIO;
+ unsigned long mips_pci_io_size = JMR3927_PCIIO_SIZE;
+ unsigned long mips_pci_mem_base = JMR3927_PCIMEM;
+ unsigned long mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
+ /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
+ unsigned long mips_pci_io_pciaddr = 0;
+#endif
/* SDRAMC are configured by PROM */
tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
tx3927_pcicptr->mba = 0;
tx3927_pcicptr->tlbmma = 0;
-#ifndef JMR3927_INIT_INDIRECT_PCI
/* Enable Direct mapping Address Space Decoder */
tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
-#endif
/* Clear All Local Bus Status */
tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
/* PCIC Int => IRC IRQ10 */
tx3927_pcicptr->il = TX3927_IR_PCI;
-#if 1
/* Target Control (per errata) */
tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
-#endif
/* Enable Bus Arbiter */
-#if 0
- tx3927_pcicptr->req_trace = 0x73737373;
-#endif
tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY |
-#if 1
PCI_COMMAND_IO |
-#endif
PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
}
#endif /* CONFIG_PCI */
.flags = IORESOURCE_MEM,
};
struct platform_device *dev;
- if (!jmr3927_have_nvram())
- return -ENODEV;
dev = platform_device_register_simple("ds1742", -1, &res, 1);
return IS_ERR(dev) ? PTR_ERR(dev) : 0;
}
offset("#define TI_ADDR_LIMIT ", struct thread_info, addr_limit);
offset("#define TI_RESTART_BLOCK ", struct thread_info, restart_block);
offset("#define TI_REGS ", struct thread_info, regs);
- constant("#define _THREAD_SIZE_ORDER ", THREAD_SIZE_ORDER);
constant("#define _THREAD_SIZE ", THREAD_SIZE);
constant("#define _THREAD_MASK ", THREAD_MASK);
linefeed;
{
int i;
- request_resource(&ioport_resource, &pic1_io_resource);
- request_resource(&ioport_resource, &pic2_io_resource);
+ insert_resource(&ioport_resource, &pic1_io_resource);
+ insert_resource(&ioport_resource, &pic2_io_resource);
init_8259A(0);
*/
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/sched.h>
#include <linux/unistd.h>
#include <linux/file.h>
#include <linux/fs.h>
int cmd;
char *vcwd;
- mm_segment_t old_fs;
int size;
ret.retval = -1;
if ((ret.retval = sp_syscall(__NR_gettimeofday, (int)&tv,
(int)&tz, 0,0)) == 0)
ret.retval = tv.tv_sec;
-
- ret.errno = errno;
break;
case MTSP_SYSCALL_EXIT:
if (cmd >= 0) {
ret.retval = sp_syscall(cmd, generic.arg0, generic.arg1,
generic.arg2, generic.arg3);
- ret.errno = errno;
} else
printk(KERN_WARNING
"KSPD: Unknown SP syscall number %d\n", sc.cmd);
#ifndef CONFIG_CPU_HAS_LLSC
sw zero, ll_bit
#endif
- mfc0 t2, CP0_STATUS
+ mfc0 t1, CP0_STATUS
+ sw t1, THREAD_STATUS(a0)
cpu_save_nonscratch a0
sw ra, THREAD_REG31(a0)
lw t3, TASK_THREAD_INFO(a0)
lw t0, TI_FLAGS(t3)
li t1, _TIF_USEDFPU
- and t1, t0
- beqz t1, 1f
+ and t2, t0, t1
+ beqz t2, 1f
nor t1, zero, t1
and t0, t0, t1
li t1, ~ST0_CU1
and t0, t0, t1
sw t0, ST_OFF(t3)
- /* clear thread_struct CU1 bit */
- and t2, t1
fpu_save_single a0, t0 # clobbers t0
1:
- sw t2, THREAD_STATUS(a0)
/*
* The order of restoring the registers takes care of the race
* updating $28, $29 and kernelsp without disabling ints.
#ifndef CONFIG_CPU_HAS_LLSC
sw zero, ll_bit
#endif
- mfc0 t2, CP0_STATUS
+ mfc0 t1, CP0_STATUS
+ LONG_S t1, THREAD_STATUS(a0)
cpu_save_nonscratch a0
LONG_S ra, THREAD_REG31(a0)
PTR_L t3, TASK_THREAD_INFO(a0)
LONG_L t0, TI_FLAGS(t3)
li t1, _TIF_USEDFPU
- and t1, t0
- beqz t1, 1f
+ and t2, t0, t1
+ beqz t2, 1f
nor t1, zero, t1
and t0, t0, t1
li t1, ~ST0_CU1
and t0, t0, t1
LONG_S t0, ST_OFF(t3)
- /* clear thread_struct CU1 bit */
- and t2, t1
fpu_save_double a0 t0 t1 # c0_status passed in t0
# clobbers t1
1:
- LONG_S t2, THREAD_STATUS(a0)
/*
* The order of restoring the registers takes care of the race
return write_spacefree(chan->rt_read, chan->rt_write, chan->buffer_size);
}
-ssize_t rtlx_read(int index, void __user *buff, size_t count, int user)
+ssize_t rtlx_read(int index, void __user *buff, size_t count)
{
size_t lx_write, fl = 0L;
struct rtlx_channel *lx;
return count;
}
-ssize_t rtlx_write(int index, const void __user *buffer, size_t count, int user)
+ssize_t rtlx_write(int index, const void __user *buffer, size_t count)
{
struct rtlx_channel *rt;
+ unsigned long failed;
size_t rt_read;
size_t fl;
}
out:
- count -= cailed;
+ count -= failed;
smp_wmb();
rt->rt_write = (rt->rt_write + count) % rt->buffer_size;
/* Check and clear pending FPU exceptions in saved CSR */
extern int fpcsr_pending(unsigned int __user *fpcsr);
+/* Make sure we will not lose FPU ownership */
+#ifdef CONFIG_PREEMPT
+#define lock_fpu_owner() preempt_disable()
+#define unlock_fpu_owner() preempt_enable()
+#else
+#define lock_fpu_owner() pagefault_disable()
+#define unlock_fpu_owner() pagefault_enable()
+#endif
+
#endif /* __SIGNAL_COMMON_H */
#include <linux/ptrace.h>
#include <linux/unistd.h>
#include <linux/compiler.h>
+#include <linux/uaccess.h>
#include <asm/abi.h>
#include <asm/asm.h>
#include <asm/cacheflush.h>
#include <asm/fpu.h>
#include <asm/sim.h>
-#include <asm/uaccess.h>
#include <asm/ucontext.h>
#include <asm/cpu-features.h>
#include <asm/war.h>
/*
* Helper routines
*/
+static int protected_save_fp_context(struct sigcontext __user *sc)
+{
+ int err;
+ while (1) {
+ lock_fpu_owner();
+ own_fpu_inatomic(1);
+ err = save_fp_context(sc); /* this might fail */
+ unlock_fpu_owner();
+ if (likely(!err))
+ break;
+ /* touch the sigcontext and try again */
+ err = __put_user(0, &sc->sc_fpregs[0]) |
+ __put_user(0, &sc->sc_fpregs[31]) |
+ __put_user(0, &sc->sc_fpc_csr);
+ if (err)
+ break; /* really bad sigcontext */
+ }
+ return err;
+}
+
+static int protected_restore_fp_context(struct sigcontext __user *sc)
+{
+ int err, tmp;
+ while (1) {
+ lock_fpu_owner();
+ own_fpu_inatomic(0);
+ err = restore_fp_context(sc); /* this might fail */
+ unlock_fpu_owner();
+ if (likely(!err))
+ break;
+ /* touch the sigcontext and try again */
+ err = __get_user(tmp, &sc->sc_fpregs[0]) |
+ __get_user(tmp, &sc->sc_fpregs[31]) |
+ __get_user(tmp, &sc->sc_fpc_csr);
+ if (err)
+ break; /* really bad sigcontext */
+ }
+ return err;
+}
+
int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
{
int err = 0;
* Save FPU state to signal context. Signal handler
* will "inherit" current FPU state.
*/
- own_fpu(1);
- enable_fp_in_kernel();
- err |= save_fp_context(sc);
- disable_fp_in_kernel();
+ err |= protected_save_fp_context(sc);
}
return err;
}
err = sig = fpcsr_pending(&sc->sc_fpc_csr);
if (err > 0)
err = 0;
- err |= restore_fp_context(sc);
+ err |= protected_restore_fp_context(sc);
return err ?: sig;
}
if (used_math) {
/* restore fpu context if we have used it before */
- own_fpu(0);
- enable_fp_in_kernel();
if (!err)
err = check_and_restore_fp_context(sc);
- disable_fp_in_kernel();
} else {
/* signal handler may have used FPU. Give it up. */
lose_fpu(0);
#include <linux/compat.h>
#include <linux/suspend.h>
#include <linux/compiler.h>
+#include <linux/uaccess.h>
#include <asm/abi.h>
#include <asm/asm.h>
#include <linux/bitops.h>
#include <asm/cacheflush.h>
#include <asm/sim.h>
-#include <asm/uaccess.h>
#include <asm/ucontext.h>
#include <asm/system.h>
#include <asm/fpu.h>
/*
* sigcontext handlers
*/
+static int protected_save_fp_context32(struct sigcontext32 __user *sc)
+{
+ int err;
+ while (1) {
+ lock_fpu_owner();
+ own_fpu_inatomic(1);
+ err = save_fp_context32(sc); /* this might fail */
+ unlock_fpu_owner();
+ if (likely(!err))
+ break;
+ /* touch the sigcontext and try again */
+ err = __put_user(0, &sc->sc_fpregs[0]) |
+ __put_user(0, &sc->sc_fpregs[31]) |
+ __put_user(0, &sc->sc_fpc_csr);
+ if (err)
+ break; /* really bad sigcontext */
+ }
+ return err;
+}
+
+static int protected_restore_fp_context32(struct sigcontext32 __user *sc)
+{
+ int err, tmp;
+ while (1) {
+ lock_fpu_owner();
+ own_fpu_inatomic(0);
+ err = restore_fp_context32(sc); /* this might fail */
+ unlock_fpu_owner();
+ if (likely(!err))
+ break;
+ /* touch the sigcontext and try again */
+ err = __get_user(tmp, &sc->sc_fpregs[0]) |
+ __get_user(tmp, &sc->sc_fpregs[31]) |
+ __get_user(tmp, &sc->sc_fpc_csr);
+ if (err)
+ break; /* really bad sigcontext */
+ }
+ return err;
+}
+
static int setup_sigcontext32(struct pt_regs *regs,
struct sigcontext32 __user *sc)
{
* Save FPU state to signal context. Signal handler
* will "inherit" current FPU state.
*/
- own_fpu(1);
- enable_fp_in_kernel();
- err |= save_fp_context32(sc);
- disable_fp_in_kernel();
+ err |= protected_save_fp_context32(sc);
}
return err;
}
err = sig = fpcsr_pending(&sc->sc_fpc_csr);
if (err > 0)
err = 0;
- err |= restore_fp_context32(sc);
+ err |= protected_restore_fp_context32(sc);
return err ?: sig;
}
if (used_math) {
/* restore fpu context if we have used it before */
- own_fpu(0);
- enable_fp_in_kernel();
if (!err)
err = check_and_restore_fp_context32(sc);
- disable_fp_in_kernel();
} else {
/* signal handler may have used FPU. Give it up. */
lose_fpu(0);
unsigned int opcode, bcode;
siginfo_t info;
- if (get_user(opcode, (unsigned int __user *) exception_epc(regs)))
+ if (__get_user(opcode, (unsigned int __user *) exception_epc(regs)))
goto out_sigsegv;
/*
unsigned int opcode, tcode = 0;
siginfo_t info;
- if (get_user(opcode, (unsigned int __user *) exception_epc(regs)))
+ if (__get_user(opcode, (unsigned int __user *) exception_epc(regs)))
goto out_sigsegv;
/* Immediate versions don't provide a code. */
{
unsigned int cpid;
+ die_if_kernel("do_cpu invoked from kernel context!", regs);
+
cpid = (regs->cp0_cause >> CAUSEB_CE) & 3;
switch (cpid) {
case 0:
- die_if_kernel("do_cpu invoked from kernel context!", regs);
if (!cpu_has_llsc)
if (!simulate_llsc(regs))
return;
break;
case 1:
- if (!test_thread_flag(TIF_ALLOW_FP_IN_KERNEL))
- die_if_kernel("do_cpu invoked from kernel context!",
- regs);
if (used_math()) /* Using the FPU again. */
own_fpu(1);
else { /* First time FPU user. */
set_used_math();
}
- if (raw_cpu_has_fpu) {
- if (test_thread_flag(TIF_ALLOW_FP_IN_KERNEL)) {
- local_irq_disable();
- if (cpu_has_fpu)
- regs->cp0_status |= ST0_CU1;
- /*
- * We must return without enabling
- * interrupts to ensure keep FPU
- * ownership until resume.
- */
- return;
- }
- } else {
+ if (!raw_cpu_has_fpu) {
int sig;
sig = fpu_emulator_cop1Handler(regs,
¤t->thread.fpu, 0);
case 2:
case 3:
- die_if_kernel("do_cpu invoked from kernel context!", regs);
break;
}
void mips_display_message(const char *str)
{
- static volatile unsigned int *display = NULL;
+ static unsigned int __iomem *display = NULL;
int i;
if (unlikely(display == NULL))
- display = (volatile unsigned int *)ioremap(ASCII_DISPLAY_POS_BASE, 16*sizeof(int));
+ display = ioremap(ASCII_DISPLAY_POS_BASE, 16*sizeof(int));
for (i = 0; i <= 14; i=i+2) {
if (*str)
- display[i] = *str++;
+ writel(*str++, display + i);
else
- display[i] = ' ';
+ writel(' ', display + i);
}
}
};
extern struct pci_ops bonito64_pci_ops;
-extern struct pci_ops gt64120_pci_ops;
+extern struct pci_ops gt64xxx_pci0_ops;
extern struct pci_ops msc_pci_ops;
static struct pci_controller bonito64_controller = {
};
static struct pci_controller gt64120_controller = {
- .pci_ops = >64120_pci_ops,
+ .pci_ops = >64xxx_pci0_ops,
.io_resource = >64120_io_resource,
.mem_resource = >64120_mem_resource,
};
static void mips_machine_restart(char *command)
{
- volatile unsigned int *softres_reg = (unsigned int *)ioremap (SOFTRES_REG, sizeof(unsigned int));
+ unsigned int __iomem *softres_reg = ioremap(SOFTRES_REG, sizeof(unsigned int));
- *softres_reg = GORESET;
+ writew(GORESET, softres_reg);
}
static void mips_machine_halt(void)
{
- volatile unsigned int *softres_reg = (unsigned int *)ioremap (SOFTRES_REG, sizeof(unsigned int));
+ unsigned int __iomem *softres_reg = ioremap(SOFTRES_REG, sizeof(unsigned int));
- *softres_reg = GORESET;
+ writew(GORESET, softres_reg);
}
#if defined(CONFIG_MIPS_ATLAS)
static void atlas_machine_power_off(void)
{
- volatile unsigned int *psustby_reg = (unsigned int *)ioremap(ATLAS_PSUSTBY_REG, sizeof(unsigned int));
+ unsigned int __iomem *psustby_reg = ioremap(ATLAS_PSUSTBY_REG, sizeof(unsigned int));
- *psustby_reg = ATLAS_GOSTBY;
+ writew(ATLAS_GOSTBY, psustby_reg);
}
#endif
#include <asm/mips-boards/msc01_pci.h>
#include <asm/msc01_ic.h>
-extern void mips_timer_interrupt(void);
-
static DEFINE_SPINLOCK(mips_irq_lock);
static inline int mips_pcibios_iack(void)
dummy = BONITO_PCIMAP_CFG;
iob(); /* sync */
- irq = *(volatile u32 *)(_pcictrl_bonito_pcicfg);
+ irq = readl((u32 *)_pcictrl_bonito_pcicfg);
iob(); /* sync */
irq &= 0xff;
BONITO_PCIMAP_CFG = 0;
#ifdef CONFIG_BLK_DEV_IDE
/* Check PCI clock */
{
- int jmpr = (*((volatile unsigned int *)ioremap(MALTA_JMPRS_REG, sizeof(unsigned int))) >> 2) & 0x07;
+ unsigned int __iomem *jmpr_p = (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
+ int jmpr = (readw(jmpr_p) >> 2) & 0x07;
static const int pciclocks[] __initdata = {
33, 20, 25, 30, 12, 16, 37, 10
};
};
#endif
#endif
-
mips_reboot_setup();
board_time_init = mips_time_init;
kaddr = kmap_coherent(page, vmaddr);
flush_data_cache_page((unsigned long)kaddr);
- kunmap_coherent(kaddr);
+ kunmap_coherent();
}
}
#define UNIQUE_ENTRYHI(idx) (CKSEG0 + ((idx) << (PAGE_SHIFT + 1)))
-void kunmap_coherent(struct page *page)
+void kunmap_coherent(void)
{
#ifndef CONFIG_MIPS_MT_SMTC
unsigned int wired;
if (cpu_has_dc_aliases) {
vfrom = kmap_coherent(from, vaddr);
copy_page(vto, vfrom);
- kunmap_coherent(from);
+ kunmap_coherent();
} else {
vfrom = kmap_atomic(from, KM_USER0);
copy_page(vto, vfrom);
if (cpu_has_dc_aliases) {
void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
memcpy(vto, src, len);
- kunmap_coherent(page);
+ kunmap_coherent();
} else
memcpy(dst, src, len);
if ((vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc)
void *vfrom =
kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
memcpy(dst, vfrom, len);
- kunmap_coherent(page);
+ kunmap_coherent();
} else
memcpy(dst, src, len);
}
#endif
kmap_coherent_init();
-#ifdef CONFIG_ISA
- if (max_low_pfn >= MAX_DMA_PFN)
- if (min_low_pfn >= MAX_DMA_PFN) {
- zones_size[ZONE_DMA] = 0;
- zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn;
- } else {
- zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn;
- zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN;
- }
+#ifdef CONFIG_ZONE_DMA
+ if (min_low_pfn < MAX_DMA_PFN && MAX_DMA_PFN <= max_low_pfn) {
+ zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn;
+ zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN;
+ } else if (max_low_pfn < MAX_DMA_PFN)
+ zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
else
#endif
- zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
+ zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn;
#ifdef CONFIG_HIGHMEM
zones_size[ZONE_HIGHMEM] = highend_pfn - highstart_pfn;
#define vpe_id() smp_processor_id()
#else
#define WHAT 0
-#define vpe_id() smp_processor_id()
+#define vpe_id() 0
#endif
#define __define_perf_accessors(r, n, np) \
# PCI bus host bridge specific code
#
obj-$(CONFIG_MIPS_BONITO64) += ops-bonito64.o
-obj-$(CONFIG_MIPS_GT64111) += ops-gt64111.o
-obj-$(CONFIG_MIPS_GT64120) += ops-gt64120.o
+obj-$(CONFIG_PCI_GT64XXX_PCI0) += ops-gt64xxx_pci0.o
obj-$(CONFIG_PCI_MARVELL) += ops-marvell.o
obj-$(CONFIG_MIPS_MSC) += ops-msc.o
obj-$(CONFIG_MIPS_NILE4) += ops-nile4.o
*/
#include <linux/types.h>
#include <linux/pci.h>
-#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/jmr3927/jmr3927.h>
/* Check OnBoard Ethernet (IDSEL=A24, DevNu=13) */
if (dev->bus->parent == NULL &&
- slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(24)) {
- extern int jmr3927_ether1_irq;
- /* check this irq line was reserved for ether1 */
- if (jmr3927_ether1_irq != JMR3927_IRQ_ETHER0)
- irq = JMR3927_IRQ_ETHER0;
- else
- irq = 0; /* disable */
- }
+ slot == TX3927_PCIC_IDSEL_AD_TO_SLOT(24))
+ irq = JMR3927_IRQ_ETHER0;
return irq;
}
+++ /dev/null
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1995, 1996, 1997, 2002 by Ralf Baechle
- * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include <asm/pci.h>
-#include <asm/io.h>
-#include <asm/gt64120.h>
-
-#include <asm/mach-cobalt/cobalt.h>
-
-/*
- * Device 31 on the GT64111 is used to generate PCI special
- * cycles, so we shouldn't expected to find a device there ...
- */
-static inline int pci_range_ck(struct pci_bus *bus, unsigned int devfn)
-{
- if (bus->number == 0 && PCI_SLOT(devfn) < 31)
- return 0;
-
- return -1;
-}
-
-static int gt64111_pci_read_config(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 * val)
-{
- if (pci_range_ck(bus, devfn))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- switch (size) {
- case 4:
- PCI_CFG_SET(devfn, where);
- *val = GT_READ(GT_PCI0_CFGDATA_OFS);
- return PCIBIOS_SUCCESSFUL;
-
- case 2:
- PCI_CFG_SET(devfn, (where & ~0x3));
- *val = GT_READ(GT_PCI0_CFGDATA_OFS)
- >> ((where & 3) * 8);
- return PCIBIOS_SUCCESSFUL;
-
- case 1:
- PCI_CFG_SET(devfn, (where & ~0x3));
- *val = GT_READ(GT_PCI0_CFGDATA_OFS)
- >> ((where & 3) * 8);
- return PCIBIOS_SUCCESSFUL;
- }
-
- return PCIBIOS_BAD_REGISTER_NUMBER;
-}
-
-static int gt64111_pci_write_config(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
-{
- u32 tmp;
-
- if (pci_range_ck(bus, devfn))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- switch (size) {
- case 4:
- PCI_CFG_SET(devfn, where);
- GT_WRITE(GT_PCI0_CFGDATA_OFS, val);
-
- return PCIBIOS_SUCCESSFUL;
-
- case 2:
- PCI_CFG_SET(devfn, (where & ~0x3));
- tmp = GT_READ(GT_PCI0_CFGDATA_OFS);
- tmp &= ~(0xffff << ((where & 0x3) * 8));
- tmp |= (val << ((where & 0x3) * 8));
- GT_WRITE(GT_PCI0_CFGDATA_OFS, tmp);
-
- return PCIBIOS_SUCCESSFUL;
-
- case 1:
- PCI_CFG_SET(devfn, (where & ~0x3));
- tmp = GT_READ(GT_PCI0_CFGDATA_OFS);
- tmp &= ~(0xff << ((where & 0x3) * 8));
- tmp |= (val << ((where & 0x3) * 8));
- GT_WRITE(GT_PCI0_CFGDATA_OFS, tmp);
-
- return PCIBIOS_SUCCESSFUL;
- }
-
- return PCIBIOS_BAD_REGISTER_NUMBER;
-}
-
-struct pci_ops gt64111_pci_ops = {
- .read = gt64111_pci_read_config,
- .write = gt64111_pci_write_config,
-};
#define PCI_CFG_TYPE1_DEV_SHF 11
#define PCI_CFG_TYPE1_BUS_SHF 16
-static int gt64120_pcibios_config_access(unsigned char access_type,
- struct pci_bus *bus, unsigned int devfn, int where, u32 * data)
+static int gt64xxx_pci0_pcibios_config_access(unsigned char access_type,
+ struct pci_bus *bus, unsigned int devfn, int where, u32 * data)
{
unsigned char busnum = bus->number;
u32 intr;
* We can't address 8 and 16 bit words directly. Instead we have to
* read/write a 32bit word and mask/modify the data we actually want.
*/
-static int gt64120_pcibios_read(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 * val)
+static int gt64xxx_pci0_pcibios_read(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 * val)
{
u32 data = 0;
- if (gt64120_pcibios_config_access(PCI_ACCESS_READ, bus, devfn, where,
- &data))
+ if (gt64xxx_pci0_pcibios_config_access(PCI_ACCESS_READ, bus, devfn,
+ where, &data))
return PCIBIOS_DEVICE_NOT_FOUND;
if (size == 1)
return PCIBIOS_SUCCESSFUL;
}
-static int gt64120_pcibios_write(struct pci_bus *bus, unsigned int devfn,
- int where, int size, u32 val)
+static int gt64xxx_pci0_pcibios_write(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 val)
{
u32 data = 0;
if (size == 4)
data = val;
else {
- if (gt64120_pcibios_config_access(PCI_ACCESS_READ, bus, devfn,
- where, &data))
+ if (gt64xxx_pci0_pcibios_config_access(PCI_ACCESS_READ, bus,
+ devfn, where, &data))
return PCIBIOS_DEVICE_NOT_FOUND;
if (size == 1)
(val << ((where & 3) << 3));
}
- if (gt64120_pcibios_config_access(PCI_ACCESS_WRITE, bus, devfn, where,
- &data))
+ if (gt64xxx_pci0_pcibios_config_access(PCI_ACCESS_WRITE, bus, devfn,
+ where, &data))
return PCIBIOS_DEVICE_NOT_FOUND;
return PCIBIOS_SUCCESSFUL;
}
-struct pci_ops gt64120_pci_ops = {
- .read = gt64120_pcibios_read,
- .write = gt64120_pcibios_write
+struct pci_ops gt64xxx_pci0_ops = {
+ .read = gt64xxx_pci0_pcibios_read,
+ .write = gt64xxx_pci0_pcibios_write
};
#include <asm/addrspace.h>
#include <asm/jmr3927/jmr3927.h>
-#include <asm/debug.h>
static inline int mkaddr(unsigned char bus, unsigned char dev_fn,
unsigned char where)
jmr3927_pci_read_config,
jmr3927_pci_write_config,
};
-
-
-#ifndef JMR3927_INIT_INDIRECT_PCI
-
-inline unsigned long tc_readl(volatile __u32 * addr)
-{
- return readl(addr);
-}
-
-inline void tc_writel(unsigned long data, volatile __u32 * addr)
-{
- writel(data, addr);
-}
-#else
-
-unsigned long tc_readl(volatile __u32 * addr)
-{
- unsigned long val;
-
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) CPHYSADDR(addr);
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_MEMREAD << PCI_IPCIBE_ICMD_SHIFT) |
- PCI_IPCIBE_IBE_LONG;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- val =
- le32_to_cpu(*(volatile u32 *) (unsigned long) & tx3927_pcicptr->
- ipcidata);
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
- return val;
-}
-
-void tc_writel(unsigned long data, volatile __u32 * addr)
-{
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcidata =
- cpu_to_le32(data);
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) CPHYSADDR(addr);
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_MEMWRITE << PCI_IPCIBE_ICMD_SHIFT) |
- PCI_IPCIBE_IBE_LONG;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
-}
-
-unsigned char tx_ioinb(unsigned char *addr)
-{
- unsigned long val;
- __u32 ioaddr;
- int offset;
- int byte;
-
- ioaddr = (unsigned long) addr;
- offset = ioaddr & 0x3;
- byte = 0xf & ~(8 >> offset);
-
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) ioaddr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_IOREAD << PCI_IPCIBE_ICMD_SHIFT) | byte;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- val =
- le32_to_cpu(*(volatile u32 *) (unsigned long) & tx3927_pcicptr->
- ipcidata);
- val = val & 0xff;
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
- return val;
-}
-
-void tx_iooutb(unsigned long data, unsigned char *addr)
-{
- __u32 ioaddr;
- int offset;
- int byte;
-
- data = data | (data << 8) | (data << 16) | (data << 24);
- ioaddr = (unsigned long) addr;
- offset = ioaddr & 0x3;
- byte = 0xf & ~(8 >> offset);
-
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcidata = data;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) ioaddr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_IOWRITE << PCI_IPCIBE_ICMD_SHIFT) | byte;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
-}
-
-unsigned short tx_ioinw(unsigned short *addr)
-{
- unsigned long val;
- __u32 ioaddr;
- int offset;
- int byte;
-
- ioaddr = (unsigned long) addr;
- offset = ioaddr & 0x2;
- byte = 3 << offset;
-
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) ioaddr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_IOREAD << PCI_IPCIBE_ICMD_SHIFT) | byte;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- val =
- le32_to_cpu(*(volatile u32 *) (unsigned long) & tx3927_pcicptr->
- ipcidata);
- val = val & 0xffff;
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
- return val;
-
-}
-
-void tx_iooutw(unsigned long data, unsigned short *addr)
-{
- __u32 ioaddr;
- int offset;
- int byte;
-
- data = data | (data << 16);
- ioaddr = (unsigned long) addr;
- offset = ioaddr & 0x2;
- byte = 3 << offset;
-
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcidata = data;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) ioaddr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_IOWRITE << PCI_IPCIBE_ICMD_SHIFT) | byte;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
-}
-
-unsigned long tx_ioinl(unsigned int *addr)
-{
- unsigned long val;
- __u32 ioaddr;
-
- ioaddr = (unsigned long) addr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) ioaddr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_IOREAD << PCI_IPCIBE_ICMD_SHIFT) |
- PCI_IPCIBE_IBE_LONG;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- val =
- le32_to_cpu(*(volatile u32 *) (unsigned long) & tx3927_pcicptr->
- ipcidata);
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
- return val;
-}
-
-void tx_iooutl(unsigned long data, unsigned int *addr)
-{
- __u32 ioaddr;
-
- ioaddr = (unsigned long) addr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcidata =
- cpu_to_le32(data);
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipciaddr =
- (unsigned long) ioaddr;
- *(volatile u32 *) (unsigned long) & tx3927_pcicptr->ipcibe =
- (PCI_IPCIBE_ICMD_IOWRITE << PCI_IPCIBE_ICMD_SHIFT) |
- PCI_IPCIBE_IBE_LONG;
- while (!(tx3927_pcicptr->istat & PCI_ISTAT_IDICC));
- /* clear by setting */
- tx3927_pcicptr->istat |= PCI_ISTAT_IDICC;
-}
-
-void tx_insbyte(unsigned char *addr, void *buffer, unsigned int count)
-{
- unsigned char *ptr = (unsigned char *) buffer;
-
- while (count--) {
- *ptr++ = tx_ioinb(addr);
- }
-}
-
-void tx_insword(unsigned short *addr, void *buffer, unsigned int count)
-{
- unsigned short *ptr = (unsigned short *) buffer;
-
- while (count--) {
- *ptr++ = tx_ioinw(addr);
- }
-}
-
-void tx_inslong(unsigned int *addr, void *buffer, unsigned int count)
-{
- unsigned long *ptr = (unsigned long *) buffer;
-
- while (count--) {
- *ptr++ = tx_ioinl(addr);
- }
-}
-
-void tx_outsbyte(unsigned char *addr, void *buffer, unsigned int count)
-{
- unsigned char *ptr = (unsigned char *) buffer;
-
- while (count--) {
- tx_iooutb(*ptr++, addr);
- }
-}
-
-void tx_outsword(unsigned short *addr, void *buffer, unsigned int count)
-{
- unsigned short *ptr = (unsigned short *) buffer;
-
- while (count--) {
- tx_iooutw(*ptr++, addr);
- }
-}
-
-void tx_outslong(unsigned int *addr, void *buffer, unsigned int count)
-{
- unsigned long *ptr = (unsigned long *) buffer;
-
- while (count--) {
- tx_iooutl(*ptr++, addr);
- }
-}
-#endif
#include <asm/bootinfo.h>
extern struct pci_ops nile4_pci_ops;
-extern struct pci_ops gt64120_pci_ops;
+extern struct pci_ops gt64xxx_pci0_ops;
static struct resource lasat_pci_mem_resource = {
.name = "LASAT PCI MEM",
.start = 0x18000000,
switch (mips_machtype) {
case MACH_LASAT_100:
- lasat_pci_controller.pci_ops = >64120_pci_ops;
+ lasat_pci_controller.pci_ops = >64xxx_pci0_ops;
break;
case MACH_LASAT_200:
lasat_pci_controller.pci_ops = &nile4_pci_ops;
};
static struct pci_controller ocelot_pci_controller = {
- .pci_ops = gt64120_pci_ops;
+ .pci_ops = gt64xxx_pci0_ops;
.mem_resource = &ocelot_mem_resource;
.io_resource = &ocelot_io_resource;
};
void __init register_pci_controller(struct pci_controller *hose)
{
+ if (request_resource(&iomem_resource, hose->mem_resource) < 0)
+ goto out;
+ if (request_resource(&ioport_resource, hose->io_resource) < 0) {
+ release_resource(hose->mem_resource);
+ goto out;
+ }
+
*hose_tail = hose;
hose_tail = &hose->next;
printk(KERN_WARNING
"registering PCI controller with io_map_base unset\n");
}
+ return;
+
+out:
+ printk(KERN_WARNING
+ "Skipping PCI bus scan due to resource conflict\n");
}
/* Most MIPS systems have straight-forward swizzling needs. */
/* Scan all of the recorded PCI controllers. */
for (next_busno = 0, hose = hose_head; hose; hose = hose->next) {
- if (request_resource(&iomem_resource, hose->mem_resource) < 0)
- goto out;
- if (request_resource(&ioport_resource, hose->io_resource) < 0)
- goto out_free_mem_resource;
-
if (!hose->iommu)
PCI_DMA_BUS_IS_PHYS = 1;
need_domain_info = 1;
}
}
- continue;
-
-out_free_mem_resource:
- release_resource(hose->mem_resource);
-
-out:
- printk(KERN_WARNING
- "Skipping PCI bus scan due to resource conflict\n");
}
if (!pci_probe_only)
* national semiconductor nv ram chip the op code is 3 bits and
* the address is 6/8 bits.
*/
-static inline void eeprom_cmd(volatile unsigned int *ctrl, unsigned cmd,
- unsigned reg)
+static inline void eeprom_cmd(unsigned int *ctrl, unsigned cmd, unsigned reg)
{
unsigned short ser_cmd;
int i;
ser_cmd = cmd | (reg << (16 - BITS_IN_COMMAND));
for (i = 0; i < BITS_IN_COMMAND; i++) {
if (ser_cmd & (1<<15)) /* if high order bit set */
- *ctrl |= EEPROM_DATO;
+ writel(readl(ctrl) | EEPROM_DATO, ctrl);
else
- *ctrl &= ~EEPROM_DATO;
- *ctrl &= ~EEPROM_ECLK;
- *ctrl |= EEPROM_ECLK;
+ writel(readl(ctrl) & ~EEPROM_DATO, ctrl);
+ writel(readl(ctrl) & ~EEPROM_ECLK, ctrl);
+ writel(readl(ctrl) | EEPROM_ECLK, ctrl);
ser_cmd <<= 1;
}
- *ctrl &= ~EEPROM_DATO; /* see data sheet timing diagram */
+ /* see data sheet timing diagram */
+ writel(readl(ctrl) & ~EEPROM_DATO, ctrl);
}
-unsigned short ip22_eeprom_read(volatile unsigned int *ctrl, int reg)
+unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg)
{
unsigned short res = 0;
int i;
- *ctrl &= ~EEPROM_EPROT;
+ writel(readl(ctrl) & ~EEPROM_EPROT, ctrl);
eeprom_cs_on(ctrl);
eeprom_cmd(ctrl, EEPROM_READ, reg);
/* clock the data ouf of serial mem */
for (i = 0; i < 16; i++) {
- *ctrl &= ~EEPROM_ECLK;
+ writel(readl(ctrl) & ~EEPROM_ECLK, ctrl);
delay();
- *ctrl |= EEPROM_ECLK;
+ writel(readl(ctrl) | EEPROM_ECLK, ctrl);
delay();
res <<= 1;
- if (*ctrl & EEPROM_DATI)
+ if (readl(ctrl) & EEPROM_DATI)
res |= 1;
}
static unsigned long dosample(void)
{
u32 ct0, ct1;
- volatile u8 msb, lsb;
+ u8 msb, lsb;
/* Start the counter. */
sgint->tcword = (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL |
/* Latch and spin until top byte of counter2 is zero */
do {
- sgint->tcword = SGINT_TCWORD_CNT2 | SGINT_TCWORD_CLAT;
- lsb = sgint->tcnt2;
- msb = sgint->tcnt2;
+ writeb(SGINT_TCWORD_CNT2 | SGINT_TCWORD_CLAT, &sgint->tcword);
+ lsb = readb(&sgint->tcnt2);
+ msb = readb(&sgint->tcnt2);
ct1 = read_c0_count();
} while (msb);
/* Stop the counter. */
- sgint->tcword = (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL |
- SGINT_TCWORD_MSWST);
+ writeb(sgint->tcword, (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL |
+ SGINT_TCWORD_MSWST));
/*
* Return the difference, this is how far the r4k counter increments
* for every 1/HZ seconds. We round off the nearest 1 MHz of master
* clock (= 1000000 / HZ / 2).
*/
- /*return (ct1 - ct0 + (500000/HZ/2)) / (500000/HZ) * (500000/HZ);*/
+
return (ct1 - ct0) / (500000/HZ) * (500000/HZ);
}
bool
select HW_HAS_PCI
select SIBYTE_ENABLE_LDT_IF_PCI
+ select SIBYTE_HAS_ZBUS_PROFILING
select SIBYTE_SB1xxx_SOC
select SYS_SUPPORTS_SMP
config SIBYTE_BCM1x80
bool
select HW_HAS_PCI
+ select SIBYTE_HAS_ZBUS_PROFILING
select SIBYTE_SB1xxx_SOC
select SYS_SUPPORTS_SMP
--- /dev/null
+obj-y :=
+
+obj-$(CONFIG_SIBYTE_TBPROF) += sb_tbprof.o
+
+EXTRA_AFLAGS := $(CFLAGS)
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/errno.h>
-#include <linux/types.h>
#include <linux/wait.h>
-
#include <asm/io.h>
#include <asm/sibyte/sb1250.h>
+
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+#include <asm/sibyte/bcm1480_regs.h>
+#include <asm/sibyte/bcm1480_scd.h>
+#include <asm/sibyte/bcm1480_int.h>
+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
#include <asm/sibyte/sb1250_regs.h>
#include <asm/sibyte/sb1250_scd.h>
#include <asm/sibyte/sb1250_int.h>
+#else
+#error invalid SiByte UART configuation
+#endif
+
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+#undef K_INT_TRACE_FREEZE
+#define K_INT_TRACE_FREEZE K_BCM1480_INT_TRACE_FREEZE
+#undef K_INT_PERF_CNT
+#define K_INT_PERF_CNT K_BCM1480_INT_PERF_CNT
+#endif
+
#include <asm/system.h>
#include <asm/uaccess.h>
: /* inputs */ \
: /* modifies */ "$8" )
-#define DEVNAME "bcm1250_tbprof"
+#define DEVNAME "sb_tbprof"
#define TB_FULL (sbp.next_tb_sample == MAX_TB_SAMPLES)
* overflow.
*
* We map the interrupt for trace_buffer_freeze to handle it on CPU 0.
+ *
*/
static u64 tb_period;
u64 tb_options = M_SCD_TRACE_CFG_FREEZE_FULL;
/*
- * Generate an SCD_PERFCNT interrupt in TB_PERIOD Zclks to trigger
- *start of trace. XXX vary sampling period
+ * Generate an SCD_PERFCNT interrupt in TB_PERIOD Zclks to
+ * trigger start of trace. XXX vary sampling period
*/
__raw_writeq(0, IOADDR(A_SCD_PERF_CNT_1));
scdperfcnt = __raw_readq(IOADDR(A_SCD_PERF_CNT_CFG));
/*
- * Unfortunately, in Pass 2 we must clear all counters to knock down a
- * previous interrupt request. This means that bus profiling requires
- * ALL of the SCD perf counters.
+ * Unfortunately, in Pass 2 we must clear all counters to knock down
+ * a previous interrupt request. This means that bus profiling
+ * requires ALL of the SCD perf counters.
*/
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+ __raw_writeq((scdperfcnt & ~M_SPC_CFG_SRC1) |
+ /* keep counters 0,2,3,4,5,6,7 as is */
+ V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */
+ IOADDR(A_BCM1480_SCD_PERF_CNT_CFG0));
+ __raw_writeq(
+ M_SPC_CFG_ENABLE | /* enable counting */
+ M_SPC_CFG_CLEAR | /* clear all counters */
+ V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */
+ IOADDR(A_BCM1480_SCD_PERF_CNT_CFG1));
+#else
__raw_writeq((scdperfcnt & ~M_SPC_CFG_SRC1) |
/* keep counters 0,2,3 as is */
M_SPC_CFG_ENABLE | /* enable counting */
M_SPC_CFG_CLEAR | /* clear all counters */
V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */
IOADDR(A_SCD_PERF_CNT_CFG));
+#endif
__raw_writeq(next, IOADDR(A_SCD_PERF_CNT_1));
-
/* Reset the trace buffer */
__raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG));
#if 0 && defined(M_SCD_TRACE_CFG_FORCECNT)
/* Subscripts decrease to put bundle in the order */
/* t0 lo, t0 hi, t1 lo, t1 hi, t2 lo, t2 hi */
p[i - 1] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t2 hi */
+ /* read t2 hi */
p[i - 2] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t2 lo */
+ /* read t2 lo */
p[i - 3] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t1 hi */
+ /* read t1 hi */
p[i - 4] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t1 lo */
+ /* read t1 lo */
p[i - 5] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t0 hi */
+ /* read t0 hi */
p[i - 6] = __raw_readq(IOADDR(A_SCD_TRACE_READ));
- /* read t0 lo */
+ /* read t0 lo */
}
if (!sbp.tb_enable) {
pr_debug(DEVNAME ": tb_intr shutdown\n");
__raw_writeq(M_SCD_TRACE_CFG_RESET,
IOADDR(A_SCD_TRACE_CFG));
sbp.tb_armed = 0;
- wake_up(&sbp.tb_sync);
+ wake_up_interruptible(&sbp.tb_sync);
} else {
- arm_tb(); /* knock down current interrupt and get another one later */
+ /* knock down current interrupt and get another one later */
+ arm_tb();
}
} else {
/* No more trace buffer samples */
pr_debug(DEVNAME ": tb_intr full\n");
__raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG));
sbp.tb_armed = 0;
- if (!sbp.tb_enable) {
- wake_up(&sbp.tb_sync);
- }
- wake_up(&sbp.tb_read);
+ if (!sbp.tb_enable)
+ wake_up_interruptible(&sbp.tb_sync);
+ wake_up_interruptible(&sbp.tb_read);
}
-
return IRQ_HANDLED;
}
sbp.next_tb_sample = 0;
filp->f_pos = 0;
- err = request_irq(K_INT_TRACE_FREEZE, sbprof_tb_intr, 0,
- DEVNAME " trace freeze", &sbp);
+ err = request_irq (K_INT_TRACE_FREEZE, sbprof_tb_intr, 0,
+ DEVNAME " trace freeze", &sbp);
if (err)
return -EBUSY;
IOADDR(A_SCD_PERF_CNT_CFG));
/*
- * We grab this interrupt to prevent others from trying to use it, even
- * though we don't want to service the interrupts (they only feed into
- * the trace-on-interrupt mechanism)
+ * We grab this interrupt to prevent others from trying to use
+ * it, even though we don't want to service the interrupts
+ * (they only feed into the trace-on-interrupt mechanism)
*/
- err = request_irq(K_INT_PERF_CNT, sbprof_pc_intr, 0,
- DEVNAME " scd perfcnt", &sbp);
- if (err)
- goto out_free_irq;
+ if (request_irq(K_INT_PERF_CNT, sbprof_pc_intr, 0, DEVNAME " scd perfcnt", &sbp)) {
+ free_irq(K_INT_TRACE_FREEZE, &sbp);
+ return -EBUSY;
+ }
/*
- * I need the core to mask these, but the interrupt mapper to pass them
- * through. I am exploiting my knowledge that cp0_status masks out
- * IP[5]. krw
+ * I need the core to mask these, but the interrupt mapper to
+ * pass them through. I am exploiting my knowledge that
+ * cp0_status masks out IP[5]. krw
*/
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+ __raw_writeq(K_BCM1480_INT_MAP_I3,
+ IOADDR(A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_MAP_BASE_L) +
+ ((K_BCM1480_INT_PERF_CNT & 0x3f) << 3)));
+#else
__raw_writeq(K_INT_MAP_I3,
IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) +
(K_INT_PERF_CNT << 3)));
+#endif
/* Initialize address traps */
__raw_writeq(0, IOADDR(A_ADDR_TRAP_UP_0));
__raw_writeq(0, IOADDR(A_ADDR_TRAP_CFG_3));
/* Initialize Trace Event 0-7 */
- /* when interrupt */
+ /* when interrupt */
__raw_writeq(M_SCD_TREVT_INTERRUPT, IOADDR(A_SCD_TRACE_EVENT_0));
__raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_1));
__raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_2));
__raw_writeq(0, IOADDR(A_SCD_TRACE_SEQUENCE_7));
/* Now indicate the PERF_CNT interrupt as a trace-relevant interrupt */
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+ __raw_writeq(1ULL << (K_BCM1480_INT_PERF_CNT & 0x3f),
+ IOADDR(A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_TRACE_L)));
+#else
__raw_writeq(1ULL << K_INT_PERF_CNT,
IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_TRACE)));
-
+#endif
arm_tb();
pr_debug(DEVNAME ": done starting\n");
return 0;
-
-out_free_irq:
- free_irq(K_INT_TRACE_FREEZE, &sbp);
-
- return err;
}
static int sbprof_zbprof_stop(void)
{
- int err;
+ int err = 0;
pr_debug(DEVNAME ": stopping\n");
pr_debug(DEVNAME ": done stopping\n");
- return 0;
+ return err;
}
static int sbprof_tb_open(struct inode *inode, struct file *filp)
return -EBUSY;
memset(&sbp, 0, sizeof(struct sbprof_tb));
-
sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES);
if (!sbp.sbprof_tbbuf)
return -ENOMEM;
-
memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES);
init_waitqueue_head(&sbp.tb_sync);
init_waitqueue_head(&sbp.tb_read);
static int sbprof_tb_release(struct inode *inode, struct file *filp)
{
- int minor = iminor(inode);
+ int minor;
+ minor = iminor(inode);
if (minor != 0 || !sbp.open)
return -ENODEV;
size_t size, loff_t *offp)
{
int cur_sample, sample_off, cur_count, sample_left;
- long cur_off = *offp;
- char *dest = buf;
- int count = 0;
char *src;
+ int count = 0;
+ char *dest = buf;
+ long cur_off = *offp;
if (!access_ok(VERIFY_WRITE, buf, size))
return -EFAULT;
mutex_unlock(&sbp.lock);
return err;
}
-
pr_debug(DEVNAME ": read from sample %d, %d bytes\n",
cur_sample, cur_count);
size -= cur_count;
dest += cur_count;
count += cur_count;
}
-
*offp = cur_off;
mutex_unlock(&sbp.lock);
return count;
}
-static long sbprof_tb_ioctl(struct file *filp, unsigned int command,
- unsigned long arg)
+static long sbprof_tb_ioctl(struct file *filp,
+ unsigned int command,
+ unsigned long arg)
{
- int error = 0;
+ int err = 0;
switch (command) {
case SBPROF_ZBSTART:
mutex_lock(&sbp.lock);
- error = sbprof_zbprof_start(filp);
+ err = sbprof_zbprof_start(filp);
mutex_unlock(&sbp.lock);
break;
case SBPROF_ZBSTOP:
mutex_lock(&sbp.lock);
- error = sbprof_zbprof_stop();
+ err = sbprof_zbprof_stop();
mutex_unlock(&sbp.lock);
break;
- case SBPROF_ZBWAITFULL:
- error = wait_event_interruptible(sbp.tb_read, TB_FULL);
- if (error)
+ case SBPROF_ZBWAITFULL: {
+ err = wait_event_interruptible(sbp.tb_read, TB_FULL);
+ if (err)
break;
- error = put_user(TB_FULL, (int *) arg);
+ err = put_user(TB_FULL, (int *) arg);
break;
+ }
default:
- error = -EINVAL;
+ err = -EINVAL;
break;
}
- return error;
+ return err;
}
static const struct file_operations sbprof_tb_fops = {
sbp.open = 0;
tb_period = zbbus_mhz * 10000LL;
- pr_info(DEVNAME ": initialized - tb_period = %lld\n", tb_period);
-
+ pr_info(DEVNAME ": initialized - tb_period = %lld\n",
+ (long long) tb_period);
return 0;
out_class:
obj-y := setup.o irq.o time.o
obj-$(CONFIG_SMP) += smp.o
-obj-$(CONFIG_SIBYTE_TBPROF) += bcm1250_tbprof.o
obj-$(CONFIG_SIBYTE_STANDALONE) += prom.o
obj-$(CONFIG_SIBYTE_BUS_WATCHER) += bus_watcher.o
periph_rev = 3;
pass_str = "A2";
break;
+ case K_SYS_REVISION_BCM112x_A3:
+ periph_rev = 3;
+ pass_str = "A3";
+ break;
+ case K_SYS_REVISION_BCM112x_A4:
+ periph_rev = 3;
+ pass_str = "A4";
+ break;
+ case K_SYS_REVISION_BCM112x_B0:
+ periph_rev = 3;
+ pass_str = "B0";
+ break;
default:
printk("Unknown %s rev %x\n", soc_str, soc_pass);
ret = 1;
};
static struct resource sni_io_resource = {
- .start = 0x00001000UL,
+ .start = 0x00000000UL,
.end = 0x03bfffffUL,
.name = "PCIMT IO MEM",
.flags = IORESOURCE_IO,
};
static struct resource sni_mem_resource = {
- .start = 0x10000000UL,
- .end = 0xffffffffUL,
+ .start = 0x18000000UL,
+ .end = 0x1fbfffffUL,
.name = "PCIMT PCI MEM",
.flags = IORESOURCE_MEM
};
-/*
- * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used
- * for other purposes. Be paranoid and allocate all of the before the PCI
- * code gets a chance to to map anything else there ...
- *
- * This leaves the following areas available:
- *
- * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory
- * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory
- * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory
- * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory
- * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory
- */
-static struct resource pcimt_mem_resources[] = {
- {
- .start = 0x100a0000,
- .end = 0x100bffff,
- .name = "Video RAM area",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x100c0000,
- .end = 0x100fffff,
- .name = "ISA Reserved",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x14000000,
- .end = 0x17bfffff,
- .name = "PCI IO",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x17c00000,
- .end = 0x17ffffff,
- .name = "Cache Replacement Area",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1a000000,
- .end = 0x1a000003,
- .name = "PCI INT Acknowledge",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fc00000,
- .end = 0x1fc7ffff,
- .name = "Boot PROM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fc80000,
- .end = 0x1fcfffff,
- .name = "Diag PROM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fd00000,
- .end = 0x1fdfffff,
- .name = "X-Bus",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fe00000,
- .end = 0x1fefffff,
- .name = "BIOS map",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1ff00000,
- .end = 0x1ff7ffff,
- .name = "NVRAM / EEPROM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fff0000,
- .end = 0x1fffefff,
- .name = "ASIC PCI",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1ffff000,
- .end = 0x1fffffff,
- .name = "MP Agent",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x20000000,
- .end = 0x9fffffff,
- .name = "Main Memory",
- .flags = IORESOURCE_BUSY
- }
-};
-
static void __init sni_pcimt_resource_init(void)
{
int i;
/* request I/O space for devices used on all i[345]86 PCs */
for (i = 0; i < ARRAY_SIZE(pcimt_io_resources); i++)
- request_resource(&ioport_resource, pcimt_io_resources + i);
-
- /* request mem space for pcimt-specific devices */
- for (i = 0; i < ARRAY_SIZE(pcimt_mem_resources); i++)
- request_resource(&sni_mem_resource, pcimt_mem_resources + i);
-
- ioport_resource.end = sni_io_resource.end;
+ request_resource(&sni_io_resource, pcimt_io_resources + i);
}
extern struct pci_ops sni_pcimt_ops;
static struct pci_controller sni_controller = {
.pci_ops = &sni_pcimt_ops,
.mem_resource = &sni_mem_resource,
- .mem_offset = 0x10000000UL,
+ .mem_offset = 0x00000000UL,
.io_resource = &sni_io_resource,
- .io_offset = 0x00000000UL
+ .io_offset = 0x00000000UL,
+ .io_map_base = SNI_PORT_BASE
};
static void enable_pcimt_irq(unsigned int irq)
void sni_pcimt_init(void)
{
- sni_pcimt_resource_init();
sni_pcimt_detect();
sni_pcimt_sc_init();
rtc_mips_get_time = mc146818_get_cmos_time;
rtc_mips_set_time = mc146818_set_rtc_mmss;
board_time_init = sni_cpu_time_init;
+ ioport_resource.end = sni_io_resource.end;
#ifdef CONFIG_PCI
+ PCIBIOS_MIN_IO = 0x9000;
register_pci_controller(&sni_controller);
#endif
+ sni_pcimt_resource_init();
}
static int __init snirm_pcimt_setup_devinit(void)
};
static struct plat_serial8250_port pcit_cplus_data[] = {
- PORT(0x3f8, 4),
+ PORT(0x3f8, 0),
PORT(0x2f8, 3),
PORT(0x3e8, 4),
PORT(0x2e8, 3),
};
static struct resource sni_io_resource = {
- .start = 0x00001000UL,
+ .start = 0x00000000UL,
.end = 0x03bfffffUL,
- .name = "PCIT IO MEM",
+ .name = "PCIT IO",
.flags = IORESOURCE_IO,
};
.end = 0xdf,
.name = "dma2",
.flags = IORESOURCE_BUSY
+ }, {
+ .start = 0xcf8,
+ .end = 0xcfb,
+ .name = "PCI config addr",
+ .flags = IORESOURCE_BUSY
}, {
.start = 0xcfc,
.end = 0xcff,
};
static struct resource sni_mem_resource = {
- .start = 0x10000000UL,
- .end = 0xffffffffUL,
+ .start = 0x18000000UL,
+ .end = 0x1fbfffffUL,
.name = "PCIT PCI MEM",
.flags = IORESOURCE_MEM
};
-/*
- * The RM200/RM300 has a few holes in it's PCI/EISA memory address space used
- * for other purposes. Be paranoid and allocate all of the before the PCI
- * code gets a chance to to map anything else there ...
- *
- * This leaves the following areas available:
- *
- * 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory
- * 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory
- * 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory
- * 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory
- * 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory
- */
-static struct resource pcit_mem_resources[] = {
- {
- .start = 0x14000000,
- .end = 0x17bfffff,
- .name = "PCI IO",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x17c00000,
- .end = 0x17ffffff,
- .name = "Cache Replacement Area",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x180a0000,
- .end = 0x180bffff,
- .name = "Video RAM area",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x180c0000,
- .end = 0x180fffff,
- .name = "ISA Reserved",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x19000000,
- .end = 0x1fbfffff,
- .name = "PCI MEM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fc00000,
- .end = 0x1fc7ffff,
- .name = "Boot PROM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fc80000,
- .end = 0x1fcfffff,
- .name = "Diag PROM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fd00000,
- .end = 0x1fdfffff,
- .name = "X-Bus",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fe00000,
- .end = 0x1fefffff,
- .name = "BIOS map",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1ff00000,
- .end = 0x1ff7ffff,
- .name = "NVRAM / EEPROM",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1fff0000,
- .end = 0x1fffefff,
- .name = "MAUI ASIC",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x1ffff000,
- .end = 0x1fffffff,
- .name = "MP Agent",
- .flags = IORESOURCE_BUSY
- }, {
- .start = 0x20000000,
- .end = 0x9fffffff,
- .name = "Main Memory",
- .flags = IORESOURCE_BUSY
- }
-};
-
static void __init sni_pcit_resource_init(void)
{
int i;
/* request I/O space for devices used on all i[345]86 PCs */
for (i = 0; i < ARRAY_SIZE(pcit_io_resources); i++)
- request_resource(&ioport_resource, pcit_io_resources + i);
-
- /* request mem space for pcimt-specific devices */
- for (i = 0; i < ARRAY_SIZE(pcit_mem_resources); i++)
- request_resource(&sni_mem_resource, pcit_mem_resources + i);
-
- ioport_resource.end = sni_io_resource.end;
+ request_resource(&sni_io_resource, pcit_io_resources + i);
}
static struct pci_controller sni_pcit_controller = {
.pci_ops = &sni_pcit_ops,
.mem_resource = &sni_mem_resource,
- .mem_offset = 0x10000000UL,
+ .mem_offset = 0x00000000UL,
.io_resource = &sni_io_resource,
- .io_offset = 0x00000000UL
+ .io_offset = 0x00000000UL,
+ .io_map_base = SNI_PORT_BASE
};
static void enable_pcit_irq(unsigned int irq)
int irq;
clear_c0_status(IE_IRQ0);
- irq = ffs((pending >> 16) & 0x7f);
+ irq = ffs((pending >> 16) & 0x3f);
if (likely(irq > 0))
do_IRQ (irq + SNI_PCIT_INT_START - 1);
if (pending & C_IRQ0)
pcit_hwint0();
+ else if (pending & C_IRQ1)
+ do_IRQ (MIPS_CPU_IRQ_BASE + 3);
else if (pending & C_IRQ2)
do_IRQ (MIPS_CPU_IRQ_BASE + 4);
else if (pending & C_IRQ3)
mips_cpu_irq_init();
for (i = SNI_PCIT_INT_START; i <= SNI_PCIT_INT_END; i++)
set_irq_chip(i, &pcit_irq_type);
- *(volatile u32 *)SNI_PCIT_INT_REG = 0;
+ *(volatile u32 *)SNI_PCIT_INT_REG = 0x40000000;
sni_hwint = sni_pcit_hwint_cplus;
change_c0_status(ST0_IM, IE_IRQ0);
- setup_irq (SNI_PCIT_INT_START + 6, &sni_isa_irq);
+ setup_irq (MIPS_CPU_IRQ_BASE + 3, &sni_isa_irq);
}
void sni_pcit_init(void)
{
- sni_pcit_resource_init();
rtc_mips_get_time = mc146818_get_cmos_time;
rtc_mips_set_time = mc146818_set_rtc_mmss;
board_time_init = sni_cpu_time_init;
+ ioport_resource.end = sni_io_resource.end;
#ifdef CONFIG_PCI
+ PCIBIOS_MIN_IO = 0x9000;
register_pci_controller(&sni_pcit_controller);
#endif
+ sni_pcit_resource_init();
}
static int __init snirm_pcit_setup_devinit(void)
-config CASIO_E55
- bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
+choice
+ prompt "Machine type"
depends on MACH_VR41XX
+ default TANBAC_TB022X
+
+config CASIO_E55
+ bool "CASIO CASSIOPEIA E-10/15/55/65"
select DMA_NONCOHERENT
select IRQ_CPU
select ISA
select SYS_SUPPORTS_LITTLE_ENDIAN
config IBM_WORKPAD
- bool "Support for IBM WorkPad z50"
- depends on MACH_VR41XX
+ bool "IBM WorkPad z50"
select DMA_NONCOHERENT
select IRQ_CPU
select ISA
select SYS_SUPPORTS_LITTLE_ENDIAN
config NEC_CMBVR4133
- bool "Support for NEC CMB-VR4133"
- depends on MACH_VR41XX
+ bool "NEC CMB-VR4133"
select DMA_NONCOHERENT
select IRQ_CPU
select HW_HAS_PCI
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
-config ROCKHOPPER
- bool "Support for Rockhopper baseboard"
- depends on NEC_CMBVR4133
- select I8259
- select HAVE_STD_PC_SERIAL_PORT
-
config TANBAC_TB022X
- bool "Support for TANBAC VR4131 multichip module and TANBAC VR4131DIMM"
- depends on MACH_VR41XX
+ bool "TANBAC VR4131 multichip module and TANBAC VR4131DIMM"
select DMA_NONCOHERENT
- select HW_HAS_PCI
select IRQ_CPU
+ select HW_HAS_PCI
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
help
Please refer to <http://www.tanbac.co.jp/>
about VR4131 multichip module and VR4131DIMM.
-config TANBAC_TB0226
- bool "Support for TANBAC Mbase(TB0226)"
+config VICTOR_MPC30X
+ bool "Victor MP-C303/304"
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select HW_HAS_PCI
+ select PCI_VR41XX
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config ZAO_CAPCELLA
+ bool "ZAO Networks Capcella"
+ select DMA_NONCOHERENT
+ select IRQ_CPU
+ select HW_HAS_PCI
+ select PCI_VR41XX
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
+endchoice
+
+config ROCKHOPPER
+ bool "Support for Rockhopper base board"
+ depends on NEC_CMBVR4133
+ select PCI_VR41XX
+ select I8259
+ select HAVE_STD_PC_SERIAL_PORT
+
+choice
+ prompt "Base board type"
depends on TANBAC_TB022X
+ default TANBAC_TB0287
+
+config TANBAC_TB0219
+ bool "TANBAC DIMM Evaluation Kit(TB0219)"
select GPIO_VR41XX
+ select PCI_VR41XX
+ help
+ The TANBAC DIMM Evaluation Kit(TB0219) is a MIPS-based platform
+ manufactured by TANBAC.
+ Please refer to <http://www.tanbac.co.jp/> about DIMM Evaluation Kit.
+
+config TANBAC_TB0226
+ bool "TANBAC Mbase(TB0226)"
+ select GPIO_VR41XX
+ select PCI_VR41XX
help
The TANBAC Mbase(TB0226) is a MIPS-based platform
manufactured by TANBAC.
Please refer to <http://www.tanbac.co.jp/> about Mbase.
config TANBAC_TB0287
- bool "Support for TANBAC Mini-ITX DIMM base(TB0287)"
- depends on TANBAC_TB022X
+ bool "TANBAC Mini-ITX DIMM base(TB0287)"
+ select PCI_VR41XX
help
The TANBAC Mini-ITX DIMM base(TB0287) is a MIPS-based platform
manufactured by TANBAC.
Please refer to <http://www.tanbac.co.jp/> about Mini-ITX DIMM base.
-config VICTOR_MPC30X
- bool "Support for Victor MP-C303/304"
- depends on MACH_VR41XX
- select DMA_NONCOHERENT
- select HW_HAS_PCI
- select IRQ_CPU
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_LITTLE_ENDIAN
-
-config ZAO_CAPCELLA
- bool "Support for ZAO Networks Capcella"
- depends on MACH_VR41XX
- select DMA_NONCOHERENT
- select HW_HAS_PCI
- select IRQ_CPU
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_LITTLE_ENDIAN
+endchoice
config PCI_VR41XX
bool "Add PCI control unit support of NEC VR4100 series"
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strcasecmp);
-EXPORT_SYMBOL(strncasecmp);
EXPORT_SYMBOL(csum_partial);
EXPORT_SYMBOL(csum_partial_copy_generic);
endif
ifeq ($(CONFIG_PPC_MERGE),y)
-obj-y := string.o strcase.o
+obj-y := string.o
obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o
endif
obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \
- memcpy_64.o usercopy_64.o mem_64.o string.o \
- strcase.o
+ memcpy_64.o usercopy_64.o mem_64.o string.o
obj-$(CONFIG_QUICC_ENGINE) += rheap.o
obj-$(CONFIG_XMON) += sstep.o
obj-$(CONFIG_KPROBES) += sstep.o
+++ /dev/null
-#include <linux/types.h>
-#include <linux/ctype.h>
-#include <linux/string.h>
-
-int strcasecmp(const char *s1, const char *s2)
-{
- int c1, c2;
-
- do {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- } while (c1 == c2 && c1 != 0);
- return c1 - c2;
-}
-
-int strncasecmp(const char *s1, const char *s2, size_t n)
-{
- int c1, c2;
-
- do {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- } while ((--n > 0) && c1 == c2 && c1 != 0);
- return c1 - c2;
-}
cep->stats.rx_dropped++;
}
else {
- skb->dev = dev;
skb_put(skb,pkt_len-4); /* Make room */
eth_copy_and_sum(skb,
(unsigned char *)__va(bdp->cbd_bufaddr),
cep->stats.rx_dropped++;
}
else {
- skb->dev = dev;
skb_put(skb,pkt_len); /* Make room */
eth_copy_and_sum(skb,
(unsigned char *)__va(bdp->cbd_bufaddr),
cep->stats.rx_dropped++;
}
else {
- skb->dev = dev;
skb_put(skb,pkt_len-4); /* Make room */
eth_copy_and_sum(skb,
cep->rx_vaddr[bdp - cep->rx_bd_base],
printk("%s: Memory squeeze, dropping packet.\n", dev->name);
fep->stats.rx_dropped++;
} else {
- skb->dev = dev;
skb_put(skb,pkt_len-4); /* Make room */
eth_copy_and_sum(skb, data, pkt_len-4, 0);
skb->protocol=eth_type_trans(skb,dev);
EXPORT_SYMBOL(strcat);
EXPORT_SYMBOL(strlen);
EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strcasecmp);
-EXPORT_SYMBOL(strncasecmp);
EXPORT_SYMBOL(__div64_32);
EXPORT_SYMBOL(csum_partial);
# Makefile for ppc-specific library files..
#
-obj-y := checksum.o string.o strcase.o div64.o
+obj-y := checksum.o string.o div64.o
obj-$(CONFIG_8xx) += rheap.o
obj-$(CONFIG_CPM2) += rheap.o
+++ /dev/null
-#include <linux/ctype.h>
-#include <linux/types.h>
-
-int strcasecmp(const char *s1, const char *s2)
-{
- int c1, c2;
-
- do {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- } while (c1 == c2 && c1 != 0);
- return c1 - c2;
-}
-
-int strncasecmp(const char *s1, const char *s2, size_t n)
-{
- int c1, c2;
-
- do {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- } while ((--n > 0) && c1 == c2 && c1 != 0);
- return c1 - c2;
-}
config GENERIC_TIME
def_bool y
+config GENERIC_BUG
+ bool
+ depends on BUG
+ default y
+
config NO_IOMEM
def_bool y
current kernel, and to start another kernel. It is like a reboot
but is independent of hardware/microcode support.
+config ZFCPDUMP
+ tristate "zfcpdump support"
+ select SMP
+ default n
+ help
+ Select this option if you want to build an zfcpdump enabled kernel.
+ Refer to "Documentation/s390/zfcpdump.txt" for more details on this.
+
endmenu
source "net/Kconfig"
ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y)
cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE)
+ifneq ($(call cc-option-yn,-mstack-size=8192),y)
cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
endif
+endif
ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack
image: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+zfcpdump:
+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
EXPORT_SYMBOL_GPL(appldata_unregister_ops);
EXPORT_SYMBOL_GPL(appldata_diag);
-#ifdef MODULE
-/*
- * Kernel symbols needed by appldata_mem and appldata_os modules.
- * However, if this file is compiled as a module (for testing only), these
- * symbols are not exported. In this case, we define them locally and export
- * those.
- */
-void si_swapinfo(struct sysinfo *val)
-{
- val->freeswap = -1ul;
- val->totalswap = -1ul;
-}
-
-unsigned long avenrun[3] = {-1 - FIXED_1/200, -1 - FIXED_1/200,
- -1 - FIXED_1/200};
-int nr_threads = -1;
-
-void get_full_page_state(struct page_state *ps)
-{
- memset(ps, -1, sizeof(struct page_state));
-}
-
-unsigned long nr_running(void)
-{
- return -1;
-}
-
-unsigned long nr_iowait(void)
-{
- return -1;
-}
-
-/*unsigned long nr_context_switches(void)
-{
- return -1;
-}*/
-#endif /* MODULE */
EXPORT_SYMBOL_GPL(si_swapinfo);
EXPORT_SYMBOL_GPL(nr_threads);
EXPORT_SYMBOL_GPL(nr_running);
EXPORT_SYMBOL_GPL(nr_iowait);
-//EXPORT_SYMBOL_GPL(nr_context_switches);
collisions = 0;
read_lock(&dev_base_lock);
for (dev = dev_base; dev != NULL; dev = dev->next) {
- if (dev->get_stats == NULL) {
+ stats = dev->get_stats(dev);
+ if (stats == NULL) {
continue;
}
- stats = dev->get_stats(dev);
rx_packets += stats->rx_packets;
tx_packets += stats->tx_packets;
rx_bytes += stats->rx_bytes;
*/
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/mm.h>
#include <linux/crypto.h>
-#include <asm/scatterlist.h>
-#include <asm/byteorder.h>
+
#include "crypt_s390.h"
#define SHA1_DIGEST_SIZE 20
#define SHA1_BLOCK_SIZE 64
-struct crypt_s390_sha1_ctx {
- u64 count;
+struct s390_sha1_ctx {
+ u64 count; /* message length */
u32 state[5];
- u32 buf_len;
- u8 buffer[2 * SHA1_BLOCK_SIZE];
+ u8 buf[2 * SHA1_BLOCK_SIZE];
};
static void sha1_init(struct crypto_tfm *tfm)
{
- struct crypt_s390_sha1_ctx *ctx = crypto_tfm_ctx(tfm);
-
- ctx->state[0] = 0x67452301;
- ctx->state[1] = 0xEFCDAB89;
- ctx->state[2] = 0x98BADCFE;
- ctx->state[3] = 0x10325476;
- ctx->state[4] = 0xC3D2E1F0;
-
- ctx->count = 0;
- ctx->buf_len = 0;
+ struct s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+
+ sctx->state[0] = 0x67452301;
+ sctx->state[1] = 0xEFCDAB89;
+ sctx->state[2] = 0x98BADCFE;
+ sctx->state[3] = 0x10325476;
+ sctx->state[4] = 0xC3D2E1F0;
+ sctx->count = 0;
}
static void sha1_update(struct crypto_tfm *tfm, const u8 *data,
unsigned int len)
{
- struct crypt_s390_sha1_ctx *sctx;
- long imd_len;
-
- sctx = crypto_tfm_ctx(tfm);
- sctx->count += len * 8; /* message bit length */
-
- /* anything in buffer yet? -> must be completed */
- if (sctx->buf_len && (sctx->buf_len + len) >= SHA1_BLOCK_SIZE) {
- /* complete full block and hash */
- memcpy(sctx->buffer + sctx->buf_len, data,
- SHA1_BLOCK_SIZE - sctx->buf_len);
- crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buffer,
- SHA1_BLOCK_SIZE);
- data += SHA1_BLOCK_SIZE - sctx->buf_len;
- len -= SHA1_BLOCK_SIZE - sctx->buf_len;
- sctx->buf_len = 0;
+ struct s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ unsigned int index;
+ int ret;
+
+ /* how much is already in the buffer? */
+ index = sctx->count & 0x3f;
+
+ sctx->count += len;
+
+ if (index + len < SHA1_BLOCK_SIZE)
+ goto store;
+
+ /* process one stored block */
+ if (index) {
+ memcpy(sctx->buf + index, data, SHA1_BLOCK_SIZE - index);
+ ret = crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buf,
+ SHA1_BLOCK_SIZE);
+ BUG_ON(ret != SHA1_BLOCK_SIZE);
+ data += SHA1_BLOCK_SIZE - index;
+ len -= SHA1_BLOCK_SIZE - index;
}
- /* rest of data contains full blocks? */
- imd_len = len & ~0x3ful;
- if (imd_len) {
- crypt_s390_kimd(KIMD_SHA_1, sctx->state, data, imd_len);
- data += imd_len;
- len -= imd_len;
+ /* process as many blocks as possible */
+ if (len >= SHA1_BLOCK_SIZE) {
+ ret = crypt_s390_kimd(KIMD_SHA_1, sctx->state, data,
+ len & ~(SHA1_BLOCK_SIZE - 1));
+ BUG_ON(ret != (len & ~(SHA1_BLOCK_SIZE - 1)));
+ data += ret;
+ len -= ret;
}
- /* anything left? store in buffer */
- if (len) {
- memcpy(sctx->buffer + sctx->buf_len , data, len);
- sctx->buf_len += len;
- }
-}
+store:
+ /* anything left? */
+ if (len)
+ memcpy(sctx->buf + index , data, len);
+}
-static void pad_message(struct crypt_s390_sha1_ctx* sctx)
+/* Add padding and return the message digest. */
+static void sha1_final(struct crypto_tfm *tfm, u8 *out)
{
- int index;
+ struct s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ u64 bits;
+ unsigned int index, end;
+ int ret;
+
+ /* must perform manual padding */
+ index = sctx->count & 0x3f;
+ end = (index < 56) ? SHA1_BLOCK_SIZE : (2 * SHA1_BLOCK_SIZE);
- index = sctx->buf_len;
- sctx->buf_len = (sctx->buf_len < 56) ?
- SHA1_BLOCK_SIZE:2 * SHA1_BLOCK_SIZE;
/* start pad with 1 */
- sctx->buffer[index] = 0x80;
+ sctx->buf[index] = 0x80;
+
/* pad with zeros */
index++;
- memset(sctx->buffer + index, 0x00, sctx->buf_len - index);
- /* append length */
- memcpy(sctx->buffer + sctx->buf_len - 8, &sctx->count,
- sizeof sctx->count);
-}
+ memset(sctx->buf + index, 0x00, end - index - 8);
-/* Add padding and return the message digest. */
-static void sha1_final(struct crypto_tfm *tfm, u8 *out)
-{
- struct crypt_s390_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ /* append message length */
+ bits = sctx->count * 8;
+ memcpy(sctx->buf + end - 8, &bits, sizeof(bits));
+
+ ret = crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buf, end);
+ BUG_ON(ret != end);
- /* must perform manual padding */
- pad_message(sctx);
- crypt_s390_kimd(KIMD_SHA_1, sctx->state, sctx->buffer, sctx->buf_len);
/* copy digest to out */
memcpy(out, sctx->state, SHA1_DIGEST_SIZE);
+
/* wipe context */
memset(sctx, 0, sizeof *sctx);
}
.cra_priority = CRYPT_S390_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_DIGEST,
.cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypt_s390_sha1_ctx),
+ .cra_ctxsize = sizeof(struct s390_sha1_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(alg.cra_list),
.cra_u = { .digest = {
#define SHA256_BLOCK_SIZE 64
struct s390_sha256_ctx {
- u64 count;
+ u64 count; /* message length */
u32 state[8];
u8 buf[2 * SHA256_BLOCK_SIZE];
};
int ret;
/* how much is already in the buffer? */
- index = sctx->count / 8 & 0x3f;
+ index = sctx->count & 0x3f;
- /* update message bit length */
- sctx->count += len * 8;
+ sctx->count += len;
if ((index + len) < SHA256_BLOCK_SIZE)
goto store;
memcpy(sctx->buf + index , data, len);
}
-static void pad_message(struct s390_sha256_ctx* sctx)
+/* Add padding and return the message digest */
+static void sha256_final(struct crypto_tfm *tfm, u8 *out)
{
- int index, end;
+ struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
+ u64 bits;
+ unsigned int index, end;
+ int ret;
- index = sctx->count / 8 & 0x3f;
- end = index < 56 ? SHA256_BLOCK_SIZE : 2 * SHA256_BLOCK_SIZE;
+ /* must perform manual padding */
+ index = sctx->count & 0x3f;
+ end = (index < 56) ? SHA256_BLOCK_SIZE : (2 * SHA256_BLOCK_SIZE);
/* start pad with 1 */
sctx->buf[index] = 0x80;
memset(sctx->buf + index, 0x00, end - index - 8);
/* append message length */
- memcpy(sctx->buf + end - 8, &sctx->count, sizeof sctx->count);
-
- sctx->count = end * 8;
-}
-
-/* Add padding and return the message digest */
-static void sha256_final(struct crypto_tfm *tfm, u8 *out)
-{
- struct s390_sha256_ctx *sctx = crypto_tfm_ctx(tfm);
-
- /* must perform manual padding */
- pad_message(sctx);
+ bits = sctx->count * 8;
+ memcpy(sctx->buf + end - 8, &bits, sizeof(bits));
- crypt_s390_kimd(KIMD_SHA_256, sctx->state, sctx->buf,
- sctx->count / 8);
+ ret = crypt_s390_kimd(KIMD_SHA_256, sctx->state, sctx->buf, end);
+ BUG_ON(ret != end);
/* copy digest to out */
memcpy(out, sctx->state, SHA256_DIGEST_SIZE);
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_BUG=y
CONFIG_NO_IOMEM=y
CONFIG_S390=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_NO_IDLE_HZ_INIT=y
CONFIG_S390_HYPFS_FS=y
CONFIG_KEXEC=y
+# CONFIG_ZFCPDUMP is not set
#
# Networking
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
obj-y := bitmap.o traps.o time.o process.o base.o early.o \
setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
- semaphore.o s390_ext.o debug.o irq.o ipl.o
+ semaphore.o s390_ext.o debug.o irq.o ipl.o dis.o
obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o)
obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
* sys32_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
-asmlinkage long
-sys32_execve(struct pt_regs regs)
+asmlinkage long sys32_execve(void)
{
- int error;
- char * filename;
+ struct pt_regs *regs = task_pt_regs(current);
+ char *filename;
+ unsigned long result;
+ int rc;
- filename = getname(compat_ptr(regs.orig_gpr2));
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
+ filename = getname(compat_ptr(regs->orig_gpr2));
+ if (IS_ERR(filename)) {
+ result = PTR_ERR(filename);
goto out;
- error = compat_do_execve(filename, compat_ptr(regs.gprs[3]),
- compat_ptr(regs.gprs[4]), ®s);
- if (error == 0)
- {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- current->thread.fp_regs.fpc=0;
- asm volatile("sfpc %0,0" : : "d" (0));
}
+ rc = compat_do_execve(filename, compat_ptr(regs->gprs[3]),
+ compat_ptr(regs->gprs[4]), regs);
+ if (rc) {
+ result = rc;
+ goto out_putname;
+ }
+ task_lock(current);
+ current->ptrace &= ~PT_DTRACE;
+ task_unlock(current);
+ current->thread.fp_regs.fpc=0;
+ asm volatile("sfpc %0,0" : : "d" (0));
+ result = regs->gprs[2];
+out_putname:
putname(filename);
out:
- return error;
+ return result;
}
return sys_write(fd, buf, count);
}
-asmlinkage long sys32_clone(struct pt_regs regs)
+asmlinkage long sys32_clone(void)
{
- unsigned long clone_flags;
- unsigned long newsp;
+ struct pt_regs *regs = task_pt_regs(current);
+ unsigned long clone_flags;
+ unsigned long newsp;
int __user *parent_tidptr, *child_tidptr;
- clone_flags = regs.gprs[3] & 0xffffffffUL;
- newsp = regs.orig_gpr2 & 0x7fffffffUL;
- parent_tidptr = compat_ptr(regs.gprs[4]);
- child_tidptr = compat_ptr(regs.gprs[5]);
- if (!newsp)
- newsp = regs.gprs[15];
- return do_fork(clone_flags, newsp, ®s, 0,
+ clone_flags = regs->gprs[3] & 0xffffffffUL;
+ newsp = regs->orig_gpr2 & 0x7fffffffUL;
+ parent_tidptr = compat_ptr(regs->gprs[4]);
+ child_tidptr = compat_ptr(regs->gprs[5]);
+ if (!newsp)
+ newsp = regs->gprs[15];
+ return do_fork(clone_flags, newsp, regs, 0,
parent_tidptr, child_tidptr);
}
}
asmlinkage long
-sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss,
- struct pt_regs *regs)
+sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss)
{
+ struct pt_regs *regs = task_pt_regs(current);
stack_t kss, koss;
unsigned long ss_sp;
int ret, err = 0;
return 0;
}
-asmlinkage long sys32_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_sigreturn(void)
{
+ struct pt_regs *regs = task_pt_regs(current);
sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
sigset_t set;
return 0;
}
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_rt_sigreturn(void)
{
+ struct pt_regs *regs = task_pt_regs(current);
rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
sigset_t set;
stack_t st;
return regs->gprs[2];
badframe:
- force_sig(SIGSEGV, current);
- return 0;
+ force_sig(SIGSEGV, current);
+ return 0;
}
/*
--- /dev/null
+/*
+ * arch/s390/kernel/dis.c
+ *
+ * Disassemble s390 instructions.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/reboot.h>
+#include <linux/kprobes.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+#include <asm/mathemu.h>
+#include <asm/cpcmd.h>
+#include <asm/s390_ext.h>
+#include <asm/lowcore.h>
+#include <asm/debug.h>
+#include <asm/kdebug.h>
+
+#ifndef CONFIG_64BIT
+#define ONELONG "%08lx: "
+#else /* CONFIG_64BIT */
+#define ONELONG "%016lx: "
+#endif /* CONFIG_64BIT */
+
+#define OPERAND_GPR 0x1 /* Operand printed as %rx */
+#define OPERAND_FPR 0x2 /* Operand printed as %fx */
+#define OPERAND_AR 0x4 /* Operand printed as %ax */
+#define OPERAND_CR 0x8 /* Operand printed as %cx */
+#define OPERAND_DISP 0x10 /* Operand printed as displacement */
+#define OPERAND_BASE 0x20 /* Operand printed as base register */
+#define OPERAND_INDEX 0x40 /* Operand printed as index register */
+#define OPERAND_PCREL 0x80 /* Operand printed as pc-relative symbol */
+#define OPERAND_SIGNED 0x100 /* Operand printed as signed value */
+#define OPERAND_LENGTH 0x200 /* Operand printed as length (+1) */
+
+enum {
+ UNUSED, /* Indicates the end of the operand list */
+ R_8, /* GPR starting at position 8 */
+ R_12, /* GPR starting at position 12 */
+ R_16, /* GPR starting at position 16 */
+ R_20, /* GPR starting at position 20 */
+ R_24, /* GPR starting at position 24 */
+ R_28, /* GPR starting at position 28 */
+ R_32, /* GPR starting at position 32 */
+ F_8, /* FPR starting at position 8 */
+ F_12, /* FPR starting at position 12 */
+ F_16, /* FPR starting at position 16 */
+ F_20, /* FPR starting at position 16 */
+ F_24, /* FPR starting at position 24 */
+ F_28, /* FPR starting at position 28 */
+ F_32, /* FPR starting at position 32 */
+ A_8, /* Access reg. starting at position 8 */
+ A_12, /* Access reg. starting at position 12 */
+ A_24, /* Access reg. starting at position 24 */
+ A_28, /* Access reg. starting at position 28 */
+ C_8, /* Control reg. starting at position 8 */
+ C_12, /* Control reg. starting at position 12 */
+ B_16, /* Base register starting at position 16 */
+ B_32, /* Base register starting at position 32 */
+ X_12, /* Index register starting at position 12 */
+ D_20, /* Displacement starting at position 20 */
+ D_36, /* Displacement starting at position 36 */
+ D20_20, /* 20 bit displacement starting at 20 */
+ L4_8, /* 4 bit length starting at position 8 */
+ L4_12, /* 4 bit length starting at position 12 */
+ L8_8, /* 8 bit length starting at position 8 */
+ U4_8, /* 4 bit unsigned value starting at 8 */
+ U4_12, /* 4 bit unsigned value starting at 12 */
+ U4_16, /* 4 bit unsigned value starting at 16 */
+ U4_20, /* 4 bit unsigned value starting at 20 */
+ U8_8, /* 8 bit unsigned value starting at 8 */
+ U8_16, /* 8 bit unsigned value starting at 16 */
+ I16_16, /* 16 bit signed value starting at 16 */
+ U16_16, /* 16 bit unsigned value starting at 16 */
+ J16_16, /* PC relative jump offset at 16 */
+ J32_16, /* PC relative long offset at 16 */
+ I32_16, /* 32 bit signed value starting at 16 */
+ U32_16, /* 32 bit unsigned value starting at 16 */
+ M_16, /* 4 bit optional mask starting at 16 */
+ RO_28, /* optional GPR starting at position 28 */
+};
+
+/*
+ * Enumeration of the different instruction formats.
+ * For details consult the principles of operation.
+ */
+enum {
+ INSTR_INVALID,
+ INSTR_E, INSTR_RIE_RRP, INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU,
+ INSTR_RIL_UP, INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
+ INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
+ INSTR_RRE_FF, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF, INSTR_RRE_RR,
+ INSTR_RRE_RR_OPT, INSTR_RRF_F0FF, INSTR_RRF_FUFF, INSTR_RRF_M0RR,
+ INSTR_RRF_R0RR, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
+ INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
+ INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD, INSTR_RSI_RRP,
+ INSTR_RSL_R0RD, INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD,
+ INSTR_RSY_RURD, INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD,
+ INSTR_RS_RRRD, INSTR_RS_RURD, INSTR_RXE_FRRD, INSTR_RXE_RRRD,
+ INSTR_RXF_FRRDF, INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RX_FRRD,
+ INSTR_RX_RRRD, INSTR_RX_URRD, INSTR_SIY_URD, INSTR_SI_URD,
+ INSTR_SSE_RDRD, INSTR_SSF_RRDRD, INSTR_SS_L0RDRD, INSTR_SS_LIRDRD,
+ INSTR_SS_LLRDRD, INSTR_SS_RRRDRD, INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
+ INSTR_S_00, INSTR_S_RD,
+};
+
+struct operand {
+ int bits; /* The number of bits in the operand. */
+ int shift; /* The number of bits to shift. */
+ int flags; /* One bit syntax flags. */
+};
+
+struct insn {
+ const char name[5];
+ unsigned char opfrag;
+ unsigned char format;
+};
+
+static const struct operand operands[] =
+{
+ [UNUSED] = { 0, 0, 0 },
+ [R_8] = { 4, 8, OPERAND_GPR },
+ [R_12] = { 4, 12, OPERAND_GPR },
+ [R_16] = { 4, 16, OPERAND_GPR },
+ [R_20] = { 4, 20, OPERAND_GPR },
+ [R_24] = { 4, 24, OPERAND_GPR },
+ [R_28] = { 4, 28, OPERAND_GPR },
+ [R_32] = { 4, 32, OPERAND_GPR },
+ [F_8] = { 4, 8, OPERAND_FPR },
+ [F_12] = { 4, 12, OPERAND_FPR },
+ [F_16] = { 4, 16, OPERAND_FPR },
+ [F_20] = { 4, 16, OPERAND_FPR },
+ [F_24] = { 4, 24, OPERAND_FPR },
+ [F_28] = { 4, 28, OPERAND_FPR },
+ [F_32] = { 4, 32, OPERAND_FPR },
+ [A_8] = { 4, 8, OPERAND_AR },
+ [A_12] = { 4, 12, OPERAND_AR },
+ [A_24] = { 4, 24, OPERAND_AR },
+ [A_28] = { 4, 28, OPERAND_AR },
+ [C_8] = { 4, 8, OPERAND_CR },
+ [C_12] = { 4, 12, OPERAND_CR },
+ [B_16] = { 4, 16, OPERAND_BASE | OPERAND_GPR },
+ [B_32] = { 4, 32, OPERAND_BASE | OPERAND_GPR },
+ [X_12] = { 4, 12, OPERAND_INDEX | OPERAND_GPR },
+ [D_20] = { 12, 20, OPERAND_DISP },
+ [D_36] = { 12, 36, OPERAND_DISP },
+ [D20_20] = { 20, 20, OPERAND_DISP | OPERAND_SIGNED },
+ [L4_8] = { 4, 8, OPERAND_LENGTH },
+ [L4_12] = { 4, 12, OPERAND_LENGTH },
+ [L8_8] = { 8, 8, OPERAND_LENGTH },
+ [U4_8] = { 4, 8, 0 },
+ [U4_12] = { 4, 12, 0 },
+ [U4_16] = { 4, 16, 0 },
+ [U4_20] = { 4, 20, 0 },
+ [U8_8] = { 8, 8, 0 },
+ [U8_16] = { 8, 16, 0 },
+ [I16_16] = { 16, 16, OPERAND_SIGNED },
+ [U16_16] = { 16, 16, 0 },
+ [J16_16] = { 16, 16, OPERAND_PCREL },
+ [J32_16] = { 32, 16, OPERAND_PCREL },
+ [I32_16] = { 32, 16, OPERAND_SIGNED },
+ [U32_16] = { 32, 16, 0 },
+ [M_16] = { 4, 16, 0 },
+ [RO_28] = { 4, 28, OPERAND_GPR }
+};
+
+static const unsigned char formats[][7] = {
+ [INSTR_E] = { 0xff, 0,0,0,0,0,0 }, /* e.g. pr */
+ [INSTR_RIE_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, /* e.g. brxhg */
+ [INSTR_RIL_RP] = { 0x0f, R_8,J32_16,0,0,0,0 }, /* e.g. brasl */
+ [INSTR_RIL_UP] = { 0x0f, U4_8,J32_16,0,0,0,0 }, /* e.g. brcl */
+ [INSTR_RIL_RI] = { 0x0f, R_8,I32_16,0,0,0,0 }, /* e.g. afi */
+ [INSTR_RIL_RU] = { 0x0f, R_8,U32_16,0,0,0,0 }, /* e.g. alfi */
+ [INSTR_RI_RI] = { 0x0f, R_8,I16_16,0,0,0,0 }, /* e.g. ahi */
+ [INSTR_RI_RP] = { 0x0f, R_8,J16_16,0,0,0,0 }, /* e.g. brct */
+ [INSTR_RI_RU] = { 0x0f, R_8,U16_16,0,0,0,0 }, /* e.g. tml */
+ [INSTR_RI_UP] = { 0x0f, U4_8,J16_16,0,0,0,0 }, /* e.g. brc */
+ [INSTR_RRE_00] = { 0xff, 0,0,0,0,0,0 }, /* e.g. palb */
+ [INSTR_RRE_0R] = { 0xff, R_28,0,0,0,0,0 }, /* e.g. tb */
+ [INSTR_RRE_AA] = { 0xff, A_24,A_28,0,0,0,0 }, /* e.g. cpya */
+ [INSTR_RRE_AR] = { 0xff, A_24,R_28,0,0,0,0 }, /* e.g. sar */
+ [INSTR_RRE_F0] = { 0xff, F_24,0,0,0,0,0 }, /* e.g. sqer */
+ [INSTR_RRE_FF] = { 0xff, F_24,F_28,0,0,0,0 }, /* e.g. debr */
+ [INSTR_RRE_R0] = { 0xff, R_24,0,0,0,0,0 }, /* e.g. ipm */
+ [INSTR_RRE_RA] = { 0xff, R_24,A_28,0,0,0,0 }, /* e.g. ear */
+ [INSTR_RRE_RF] = { 0xff, R_24,F_28,0,0,0,0 }, /* e.g. cefbr */
+ [INSTR_RRE_RR] = { 0xff, R_24,R_28,0,0,0,0 }, /* e.g. lura */
+ [INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 }, /* efpc, sfpc */
+ [INSTR_RRF_F0FF] = { 0xff, F_16,F_24,F_28,0,0,0 }, /* e.g. madbr */
+ [INSTR_RRF_FUFF] = { 0xff, F_24,F_16,F_28,U4_20,0,0 },/* e.g. didbr */
+ [INSTR_RRF_RURR] = { 0xff, R_24,R_28,R_16,U4_20,0,0 },/* e.g. .insn */
+ [INSTR_RRF_R0RR] = { 0xff, R_24,R_28,R_16,0,0,0 }, /* e.g. idte */
+ [INSTR_RRF_U0FF] = { 0xff, F_24,U4_16,F_28,0,0,0 }, /* e.g. fixr */
+ [INSTR_RRF_U0RF] = { 0xff, R_24,U4_16,F_28,0,0,0 }, /* e.g. cfebr */
+ [INSTR_RRF_M0RR] = { 0xff, R_24,R_28,M_16,0,0,0 }, /* e.g. sske */
+ [INSTR_RR_FF] = { 0xff, F_8,F_12,0,0,0,0 }, /* e.g. adr */
+ [INSTR_RR_R0] = { 0xff, R_8, 0,0,0,0,0 }, /* e.g. spm */
+ [INSTR_RR_RR] = { 0xff, R_8,R_12,0,0,0,0 }, /* e.g. lr */
+ [INSTR_RR_U0] = { 0xff, U8_8, 0,0,0,0,0 }, /* e.g. svc */
+ [INSTR_RR_UR] = { 0xff, U4_8,R_12,0,0,0,0 }, /* e.g. bcr */
+ [INSTR_RSE_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, /* e.g. lmh */
+ [INSTR_RSE_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, /* e.g. lmh */
+ [INSTR_RSE_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icmh */
+ [INSTR_RSL_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, /* e.g. tp */
+ [INSTR_RSI_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, /* e.g. brxh */
+ [INSTR_RSY_RRRD] = { 0xff, R_8,R_12,D20_20,B_16,0,0 },/* e.g. stmy */
+ [INSTR_RSY_RURD] = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
+ /* e.g. icmh */
+ [INSTR_RSY_AARD] = { 0xff, A_8,A_12,D20_20,B_16,0,0 },/* e.g. lamy */
+ [INSTR_RSY_CCRD] = { 0xff, C_8,C_12,D20_20,B_16,0,0 },/* e.g. lamy */
+ [INSTR_RS_AARD] = { 0xff, A_8,A_12,D_20,B_16,0,0 }, /* e.g. lam */
+ [INSTR_RS_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, /* e.g. lctl */
+ [INSTR_RS_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, /* e.g. sll */
+ [INSTR_RS_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, /* e.g. cs */
+ [INSTR_RS_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icm */
+ [INSTR_RXE_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. axbr */
+ [INSTR_RXE_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. lg */
+ [INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
+ /* e.g. madb */
+ [INSTR_RXY_RRRD] = { 0xff, R_8,D20_20,X_12,B_16,0,0 },/* e.g. ly */
+ [INSTR_RXY_FRRD] = { 0xff, F_8,D20_20,X_12,B_16,0,0 },/* e.g. ley */
+ [INSTR_RX_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. ae */
+ [INSTR_RX_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. l */
+ [INSTR_RX_URRD] = { 0x00, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc */
+ [INSTR_SI_URD] = { 0x00, D_20,B_16,U8_8,0,0,0 }, /* e.g. cli */
+ [INSTR_SIY_URD] = { 0xff, D20_20,B_16,U8_8,0,0,0 }, /* e.g. tmy */
+ [INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 }, /* e.g. mvsdk */
+ [INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
+ /* e.g. mvc */
+ [INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
+ /* e.g. srp */
+ [INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
+ /* e.g. pack */
+ [INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
+ /* e.g. mvck */
+ [INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
+ /* e.g. plo */
+ [INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
+ /* e.g. lmd */
+ [INSTR_S_00] = { 0xff, 0,0,0,0,0,0 }, /* e.g. hsch */
+ [INSTR_S_RD] = { 0xff, D_20,B_16,0,0,0,0 }, /* e.g. lpsw */
+ [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
+ /* e.g. mvcos */
+};
+
+static struct insn opcode[] = {
+#ifdef CONFIG_64BIT
+ { "lmd", 0xef, INSTR_SS_RRRDRD3 },
+#endif
+ { "spm", 0x04, INSTR_RR_R0 },
+ { "balr", 0x05, INSTR_RR_RR },
+ { "bctr", 0x06, INSTR_RR_RR },
+ { "bcr", 0x07, INSTR_RR_UR },
+ { "svc", 0x0a, INSTR_RR_U0 },
+ { "bsm", 0x0b, INSTR_RR_RR },
+ { "bassm", 0x0c, INSTR_RR_RR },
+ { "basr", 0x0d, INSTR_RR_RR },
+ { "mvcl", 0x0e, INSTR_RR_RR },
+ { "clcl", 0x0f, INSTR_RR_RR },
+ { "lpr", 0x10, INSTR_RR_RR },
+ { "lnr", 0x11, INSTR_RR_RR },
+ { "ltr", 0x12, INSTR_RR_RR },
+ { "lcr", 0x13, INSTR_RR_RR },
+ { "nr", 0x14, INSTR_RR_RR },
+ { "clr", 0x15, INSTR_RR_RR },
+ { "or", 0x16, INSTR_RR_RR },
+ { "xr", 0x17, INSTR_RR_RR },
+ { "lr", 0x18, INSTR_RR_RR },
+ { "cr", 0x19, INSTR_RR_RR },
+ { "ar", 0x1a, INSTR_RR_RR },
+ { "sr", 0x1b, INSTR_RR_RR },
+ { "mr", 0x1c, INSTR_RR_RR },
+ { "dr", 0x1d, INSTR_RR_RR },
+ { "alr", 0x1e, INSTR_RR_RR },
+ { "slr", 0x1f, INSTR_RR_RR },
+ { "lpdr", 0x20, INSTR_RR_FF },
+ { "lndr", 0x21, INSTR_RR_FF },
+ { "ltdr", 0x22, INSTR_RR_FF },
+ { "lcdr", 0x23, INSTR_RR_FF },
+ { "hdr", 0x24, INSTR_RR_FF },
+ { "ldxr", 0x25, INSTR_RR_FF },
+ { "lrdr", 0x25, INSTR_RR_FF },
+ { "mxr", 0x26, INSTR_RR_FF },
+ { "mxdr", 0x27, INSTR_RR_FF },
+ { "ldr", 0x28, INSTR_RR_FF },
+ { "cdr", 0x29, INSTR_RR_FF },
+ { "adr", 0x2a, INSTR_RR_FF },
+ { "sdr", 0x2b, INSTR_RR_FF },
+ { "mdr", 0x2c, INSTR_RR_FF },
+ { "ddr", 0x2d, INSTR_RR_FF },
+ { "awr", 0x2e, INSTR_RR_FF },
+ { "swr", 0x2f, INSTR_RR_FF },
+ { "lper", 0x30, INSTR_RR_FF },
+ { "lner", 0x31, INSTR_RR_FF },
+ { "lter", 0x32, INSTR_RR_FF },
+ { "lcer", 0x33, INSTR_RR_FF },
+ { "her", 0x34, INSTR_RR_FF },
+ { "ledr", 0x35, INSTR_RR_FF },
+ { "lrer", 0x35, INSTR_RR_FF },
+ { "axr", 0x36, INSTR_RR_FF },
+ { "sxr", 0x37, INSTR_RR_FF },
+ { "ler", 0x38, INSTR_RR_FF },
+ { "cer", 0x39, INSTR_RR_FF },
+ { "aer", 0x3a, INSTR_RR_FF },
+ { "ser", 0x3b, INSTR_RR_FF },
+ { "mder", 0x3c, INSTR_RR_FF },
+ { "mer", 0x3c, INSTR_RR_FF },
+ { "der", 0x3d, INSTR_RR_FF },
+ { "aur", 0x3e, INSTR_RR_FF },
+ { "sur", 0x3f, INSTR_RR_FF },
+ { "sth", 0x40, INSTR_RX_RRRD },
+ { "la", 0x41, INSTR_RX_RRRD },
+ { "stc", 0x42, INSTR_RX_RRRD },
+ { "ic", 0x43, INSTR_RX_RRRD },
+ { "ex", 0x44, INSTR_RX_RRRD },
+ { "bal", 0x45, INSTR_RX_RRRD },
+ { "bct", 0x46, INSTR_RX_RRRD },
+ { "bc", 0x47, INSTR_RX_URRD },
+ { "lh", 0x48, INSTR_RX_RRRD },
+ { "ch", 0x49, INSTR_RX_RRRD },
+ { "ah", 0x4a, INSTR_RX_RRRD },
+ { "sh", 0x4b, INSTR_RX_RRRD },
+ { "mh", 0x4c, INSTR_RX_RRRD },
+ { "bas", 0x4d, INSTR_RX_RRRD },
+ { "cvd", 0x4e, INSTR_RX_RRRD },
+ { "cvb", 0x4f, INSTR_RX_RRRD },
+ { "st", 0x50, INSTR_RX_RRRD },
+ { "lae", 0x51, INSTR_RX_RRRD },
+ { "n", 0x54, INSTR_RX_RRRD },
+ { "cl", 0x55, INSTR_RX_RRRD },
+ { "o", 0x56, INSTR_RX_RRRD },
+ { "x", 0x57, INSTR_RX_RRRD },
+ { "l", 0x58, INSTR_RX_RRRD },
+ { "c", 0x59, INSTR_RX_RRRD },
+ { "a", 0x5a, INSTR_RX_RRRD },
+ { "s", 0x5b, INSTR_RX_RRRD },
+ { "m", 0x5c, INSTR_RX_RRRD },
+ { "d", 0x5d, INSTR_RX_RRRD },
+ { "al", 0x5e, INSTR_RX_RRRD },
+ { "sl", 0x5f, INSTR_RX_RRRD },
+ { "std", 0x60, INSTR_RX_FRRD },
+ { "mxd", 0x67, INSTR_RX_FRRD },
+ { "ld", 0x68, INSTR_RX_FRRD },
+ { "cd", 0x69, INSTR_RX_FRRD },
+ { "ad", 0x6a, INSTR_RX_FRRD },
+ { "sd", 0x6b, INSTR_RX_FRRD },
+ { "md", 0x6c, INSTR_RX_FRRD },
+ { "dd", 0x6d, INSTR_RX_FRRD },
+ { "aw", 0x6e, INSTR_RX_FRRD },
+ { "sw", 0x6f, INSTR_RX_FRRD },
+ { "ste", 0x70, INSTR_RX_FRRD },
+ { "ms", 0x71, INSTR_RX_RRRD },
+ { "le", 0x78, INSTR_RX_FRRD },
+ { "ce", 0x79, INSTR_RX_FRRD },
+ { "ae", 0x7a, INSTR_RX_FRRD },
+ { "se", 0x7b, INSTR_RX_FRRD },
+ { "mde", 0x7c, INSTR_RX_FRRD },
+ { "me", 0x7c, INSTR_RX_FRRD },
+ { "de", 0x7d, INSTR_RX_FRRD },
+ { "au", 0x7e, INSTR_RX_FRRD },
+ { "su", 0x7f, INSTR_RX_FRRD },
+ { "ssm", 0x80, INSTR_S_RD },
+ { "lpsw", 0x82, INSTR_S_RD },
+ { "diag", 0x83, INSTR_RS_RRRD },
+ { "brxh", 0x84, INSTR_RSI_RRP },
+ { "brxle", 0x85, INSTR_RSI_RRP },
+ { "bxh", 0x86, INSTR_RS_RRRD },
+ { "bxle", 0x87, INSTR_RS_RRRD },
+ { "srl", 0x88, INSTR_RS_R0RD },
+ { "sll", 0x89, INSTR_RS_R0RD },
+ { "sra", 0x8a, INSTR_RS_R0RD },
+ { "sla", 0x8b, INSTR_RS_R0RD },
+ { "srdl", 0x8c, INSTR_RS_R0RD },
+ { "sldl", 0x8d, INSTR_RS_R0RD },
+ { "srda", 0x8e, INSTR_RS_R0RD },
+ { "slda", 0x8f, INSTR_RS_R0RD },
+ { "stm", 0x90, INSTR_RS_RRRD },
+ { "tm", 0x91, INSTR_SI_URD },
+ { "mvi", 0x92, INSTR_SI_URD },
+ { "ts", 0x93, INSTR_S_RD },
+ { "ni", 0x94, INSTR_SI_URD },
+ { "cli", 0x95, INSTR_SI_URD },
+ { "oi", 0x96, INSTR_SI_URD },
+ { "xi", 0x97, INSTR_SI_URD },
+ { "lm", 0x98, INSTR_RS_RRRD },
+ { "trace", 0x99, INSTR_RS_RRRD },
+ { "lam", 0x9a, INSTR_RS_AARD },
+ { "stam", 0x9b, INSTR_RS_AARD },
+ { "mvcle", 0xa8, INSTR_RS_RRRD },
+ { "clcle", 0xa9, INSTR_RS_RRRD },
+ { "stnsm", 0xac, INSTR_SI_URD },
+ { "stosm", 0xad, INSTR_SI_URD },
+ { "sigp", 0xae, INSTR_RS_RRRD },
+ { "mc", 0xaf, INSTR_SI_URD },
+ { "lra", 0xb1, INSTR_RX_RRRD },
+ { "stctl", 0xb6, INSTR_RS_CCRD },
+ { "lctl", 0xb7, INSTR_RS_CCRD },
+ { "cs", 0xba, INSTR_RS_RRRD },
+ { "cds", 0xbb, INSTR_RS_RRRD },
+ { "clm", 0xbd, INSTR_RS_RURD },
+ { "stcm", 0xbe, INSTR_RS_RURD },
+ { "icm", 0xbf, INSTR_RS_RURD },
+ { "mvn", 0xd1, INSTR_SS_L0RDRD },
+ { "mvc", 0xd2, INSTR_SS_L0RDRD },
+ { "mvz", 0xd3, INSTR_SS_L0RDRD },
+ { "nc", 0xd4, INSTR_SS_L0RDRD },
+ { "clc", 0xd5, INSTR_SS_L0RDRD },
+ { "oc", 0xd6, INSTR_SS_L0RDRD },
+ { "xc", 0xd7, INSTR_SS_L0RDRD },
+ { "mvck", 0xd9, INSTR_SS_RRRDRD },
+ { "mvcp", 0xda, INSTR_SS_RRRDRD },
+ { "mvcs", 0xdb, INSTR_SS_RRRDRD },
+ { "tr", 0xdc, INSTR_SS_L0RDRD },
+ { "trt", 0xdd, INSTR_SS_L0RDRD },
+ { "ed", 0xde, INSTR_SS_L0RDRD },
+ { "edmk", 0xdf, INSTR_SS_L0RDRD },
+ { "pku", 0xe1, INSTR_SS_L0RDRD },
+ { "unpku", 0xe2, INSTR_SS_L0RDRD },
+ { "mvcin", 0xe8, INSTR_SS_L0RDRD },
+ { "pka", 0xe9, INSTR_SS_L0RDRD },
+ { "unpka", 0xea, INSTR_SS_L0RDRD },
+ { "plo", 0xee, INSTR_SS_RRRDRD2 },
+ { "srp", 0xf0, INSTR_SS_LIRDRD },
+ { "mvo", 0xf1, INSTR_SS_LLRDRD },
+ { "pack", 0xf2, INSTR_SS_LLRDRD },
+ { "unpk", 0xf3, INSTR_SS_LLRDRD },
+ { "zap", 0xf8, INSTR_SS_LLRDRD },
+ { "cp", 0xf9, INSTR_SS_LLRDRD },
+ { "ap", 0xfa, INSTR_SS_LLRDRD },
+ { "sp", 0xfb, INSTR_SS_LLRDRD },
+ { "mp", 0xfc, INSTR_SS_LLRDRD },
+ { "dp", 0xfd, INSTR_SS_LLRDRD },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_01[] = {
+#ifdef CONFIG_64BIT
+ { "sam64", 0x0e, INSTR_E },
+#endif
+ { "pr", 0x01, INSTR_E },
+ { "upt", 0x02, INSTR_E },
+ { "sckpf", 0x07, INSTR_E },
+ { "tam", 0x0b, INSTR_E },
+ { "sam24", 0x0c, INSTR_E },
+ { "sam31", 0x0d, INSTR_E },
+ { "trap2", 0xff, INSTR_E },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_a5[] = {
+#ifdef CONFIG_64BIT
+ { "iihh", 0x00, INSTR_RI_RU },
+ { "iihl", 0x01, INSTR_RI_RU },
+ { "iilh", 0x02, INSTR_RI_RU },
+ { "iill", 0x03, INSTR_RI_RU },
+ { "nihh", 0x04, INSTR_RI_RU },
+ { "nihl", 0x05, INSTR_RI_RU },
+ { "nilh", 0x06, INSTR_RI_RU },
+ { "nill", 0x07, INSTR_RI_RU },
+ { "oihh", 0x08, INSTR_RI_RU },
+ { "oihl", 0x09, INSTR_RI_RU },
+ { "oilh", 0x0a, INSTR_RI_RU },
+ { "oill", 0x0b, INSTR_RI_RU },
+ { "llihh", 0x0c, INSTR_RI_RU },
+ { "llihl", 0x0d, INSTR_RI_RU },
+ { "llilh", 0x0e, INSTR_RI_RU },
+ { "llill", 0x0f, INSTR_RI_RU },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_a7[] = {
+#ifdef CONFIG_64BIT
+ { "tmhh", 0x02, INSTR_RI_RU },
+ { "tmhl", 0x03, INSTR_RI_RU },
+ { "brctg", 0x07, INSTR_RI_RP },
+ { "lghi", 0x09, INSTR_RI_RI },
+ { "aghi", 0x0b, INSTR_RI_RI },
+ { "mghi", 0x0d, INSTR_RI_RI },
+ { "cghi", 0x0f, INSTR_RI_RI },
+#endif
+ { "tmlh", 0x00, INSTR_RI_RU },
+ { "tmll", 0x01, INSTR_RI_RU },
+ { "brc", 0x04, INSTR_RI_UP },
+ { "bras", 0x05, INSTR_RI_RP },
+ { "brct", 0x06, INSTR_RI_RP },
+ { "lhi", 0x08, INSTR_RI_RI },
+ { "ahi", 0x0a, INSTR_RI_RI },
+ { "mhi", 0x0c, INSTR_RI_RI },
+ { "chi", 0x0e, INSTR_RI_RI },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_b2[] = {
+#ifdef CONFIG_64BIT
+ { "sske", 0x2b, INSTR_RRF_M0RR },
+ { "stckf", 0x7c, INSTR_S_RD },
+ { "cu21", 0xa6, INSTR_RRF_M0RR },
+ { "cuutf", 0xa6, INSTR_RRF_M0RR },
+ { "cu12", 0xa7, INSTR_RRF_M0RR },
+ { "cutfu", 0xa7, INSTR_RRF_M0RR },
+ { "stfle", 0xb0, INSTR_S_RD },
+ { "lpswe", 0xb2, INSTR_S_RD },
+#endif
+ { "stidp", 0x02, INSTR_S_RD },
+ { "sck", 0x04, INSTR_S_RD },
+ { "stck", 0x05, INSTR_S_RD },
+ { "sckc", 0x06, INSTR_S_RD },
+ { "stckc", 0x07, INSTR_S_RD },
+ { "spt", 0x08, INSTR_S_RD },
+ { "stpt", 0x09, INSTR_S_RD },
+ { "spka", 0x0a, INSTR_S_RD },
+ { "ipk", 0x0b, INSTR_S_00 },
+ { "ptlb", 0x0d, INSTR_S_00 },
+ { "spx", 0x10, INSTR_S_RD },
+ { "stpx", 0x11, INSTR_S_RD },
+ { "stap", 0x12, INSTR_S_RD },
+ { "sie", 0x14, INSTR_S_RD },
+ { "pc", 0x18, INSTR_S_RD },
+ { "sac", 0x19, INSTR_S_RD },
+ { "cfc", 0x1a, INSTR_S_RD },
+ { "ipte", 0x21, INSTR_RRE_RR },
+ { "ipm", 0x22, INSTR_RRE_R0 },
+ { "ivsk", 0x23, INSTR_RRE_RR },
+ { "iac", 0x24, INSTR_RRE_R0 },
+ { "ssar", 0x25, INSTR_RRE_R0 },
+ { "epar", 0x26, INSTR_RRE_R0 },
+ { "esar", 0x27, INSTR_RRE_R0 },
+ { "pt", 0x28, INSTR_RRE_RR },
+ { "iske", 0x29, INSTR_RRE_RR },
+ { "rrbe", 0x2a, INSTR_RRE_RR },
+ { "sske", 0x2b, INSTR_RRE_RR },
+ { "tb", 0x2c, INSTR_RRE_0R },
+ { "dxr", 0x2d, INSTR_RRE_F0 },
+ { "pgin", 0x2e, INSTR_RRE_RR },
+ { "pgout", 0x2f, INSTR_RRE_RR },
+ { "csch", 0x30, INSTR_S_00 },
+ { "hsch", 0x31, INSTR_S_00 },
+ { "msch", 0x32, INSTR_S_RD },
+ { "ssch", 0x33, INSTR_S_RD },
+ { "stsch", 0x34, INSTR_S_RD },
+ { "tsch", 0x35, INSTR_S_RD },
+ { "tpi", 0x36, INSTR_S_RD },
+ { "sal", 0x37, INSTR_S_00 },
+ { "rsch", 0x38, INSTR_S_00 },
+ { "stcrw", 0x39, INSTR_S_RD },
+ { "stcps", 0x3a, INSTR_S_RD },
+ { "rchp", 0x3b, INSTR_S_00 },
+ { "schm", 0x3c, INSTR_S_00 },
+ { "bakr", 0x40, INSTR_RRE_RR },
+ { "cksm", 0x41, INSTR_RRE_RR },
+ { "sqdr", 0x44, INSTR_RRE_F0 },
+ { "sqer", 0x45, INSTR_RRE_F0 },
+ { "stura", 0x46, INSTR_RRE_RR },
+ { "msta", 0x47, INSTR_RRE_R0 },
+ { "palb", 0x48, INSTR_RRE_00 },
+ { "ereg", 0x49, INSTR_RRE_RR },
+ { "esta", 0x4a, INSTR_RRE_RR },
+ { "lura", 0x4b, INSTR_RRE_RR },
+ { "tar", 0x4c, INSTR_RRE_AR },
+ { "cpya", INSTR_RRE_AA },
+ { "sar", 0x4e, INSTR_RRE_AR },
+ { "ear", 0x4f, INSTR_RRE_RA },
+ { "csp", 0x50, INSTR_RRE_RR },
+ { "msr", 0x52, INSTR_RRE_RR },
+ { "mvpg", 0x54, INSTR_RRE_RR },
+ { "mvst", 0x55, INSTR_RRE_RR },
+ { "cuse", 0x57, INSTR_RRE_RR },
+ { "bsg", 0x58, INSTR_RRE_RR },
+ { "bsa", 0x5a, INSTR_RRE_RR },
+ { "clst", 0x5d, INSTR_RRE_RR },
+ { "srst", 0x5e, INSTR_RRE_RR },
+ { "cmpsc", 0x63, INSTR_RRE_RR },
+ { "cmpsc", 0x63, INSTR_RRE_RR },
+ { "siga", 0x74, INSTR_S_RD },
+ { "xsch", 0x76, INSTR_S_00 },
+ { "rp", 0x77, INSTR_S_RD },
+ { "stcke", 0x78, INSTR_S_RD },
+ { "sacf", 0x79, INSTR_S_RD },
+ { "stsi", 0x7d, INSTR_S_RD },
+ { "srnm", 0x99, INSTR_S_RD },
+ { "stfpc", 0x9c, INSTR_S_RD },
+ { "lfpc", 0x9d, INSTR_S_RD },
+ { "tre", 0xa5, INSTR_RRE_RR },
+ { "cuutf", 0xa6, INSTR_RRE_RR },
+ { "cutfu", 0xa7, INSTR_RRE_RR },
+ { "stfl", 0xb1, INSTR_S_RD },
+ { "trap4", 0xff, INSTR_S_RD },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_b3[] = {
+#ifdef CONFIG_64BIT
+ { "maylr", 0x38, INSTR_RRF_F0FF },
+ { "mylr", 0x39, INSTR_RRF_F0FF },
+ { "mayr", 0x3a, INSTR_RRF_F0FF },
+ { "myr", 0x3b, INSTR_RRF_F0FF },
+ { "mayhr", 0x3c, INSTR_RRF_F0FF },
+ { "myhr", 0x3d, INSTR_RRF_F0FF },
+ { "cegbr", 0xa4, INSTR_RRE_RR },
+ { "cdgbr", 0xa5, INSTR_RRE_RR },
+ { "cxgbr", 0xa6, INSTR_RRE_RR },
+ { "cgebr", 0xa8, INSTR_RRF_U0RF },
+ { "cgdbr", 0xa9, INSTR_RRF_U0RF },
+ { "cgxbr", 0xaa, INSTR_RRF_U0RF },
+ { "cfer", 0xb8, INSTR_RRF_U0RF },
+ { "cfdr", 0xb9, INSTR_RRF_U0RF },
+ { "cfxr", 0xba, INSTR_RRF_U0RF },
+ { "cegr", 0xc4, INSTR_RRE_RR },
+ { "cdgr", 0xc5, INSTR_RRE_RR },
+ { "cxgr", 0xc6, INSTR_RRE_RR },
+ { "cger", 0xc8, INSTR_RRF_U0RF },
+ { "cgdr", 0xc9, INSTR_RRF_U0RF },
+ { "cgxr", 0xca, INSTR_RRF_U0RF },
+#endif
+ { "lpebr", 0x00, INSTR_RRE_FF },
+ { "lnebr", 0x01, INSTR_RRE_FF },
+ { "ltebr", 0x02, INSTR_RRE_FF },
+ { "lcebr", 0x03, INSTR_RRE_FF },
+ { "ldebr", 0x04, INSTR_RRE_FF },
+ { "lxdbr", 0x05, INSTR_RRE_FF },
+ { "lxebr", 0x06, INSTR_RRE_FF },
+ { "mxdbr", 0x07, INSTR_RRE_FF },
+ { "kebr", 0x08, INSTR_RRE_FF },
+ { "cebr", 0x09, INSTR_RRE_FF },
+ { "aebr", 0x0a, INSTR_RRE_FF },
+ { "sebr", 0x0b, INSTR_RRE_FF },
+ { "mdebr", 0x0c, INSTR_RRE_FF },
+ { "debr", 0x0d, INSTR_RRE_FF },
+ { "maebr", 0x0e, INSTR_RRF_F0FF },
+ { "msebr", 0x0f, INSTR_RRF_F0FF },
+ { "lpdbr", 0x10, INSTR_RRE_FF },
+ { "lndbr", 0x11, INSTR_RRE_FF },
+ { "ltdbr", 0x12, INSTR_RRE_FF },
+ { "lcdbr", 0x13, INSTR_RRE_FF },
+ { "sqebr", 0x14, INSTR_RRE_FF },
+ { "sqdbr", 0x15, INSTR_RRE_FF },
+ { "sqxbr", 0x16, INSTR_RRE_FF },
+ { "meebr", 0x17, INSTR_RRE_FF },
+ { "kdbr", 0x18, INSTR_RRE_FF },
+ { "cdbr", 0x19, INSTR_RRE_FF },
+ { "adbr", 0x1a, INSTR_RRE_FF },
+ { "sdbr", 0x1b, INSTR_RRE_FF },
+ { "mdbr", 0x1c, INSTR_RRE_FF },
+ { "ddbr", 0x1d, INSTR_RRE_FF },
+ { "madbr", 0x1e, INSTR_RRF_F0FF },
+ { "msdbr", 0x1f, INSTR_RRF_F0FF },
+ { "lder", 0x24, INSTR_RRE_FF },
+ { "lxdr", 0x25, INSTR_RRE_FF },
+ { "lxer", 0x26, INSTR_RRE_FF },
+ { "maer", 0x2e, INSTR_RRF_F0FF },
+ { "mser", 0x2f, INSTR_RRF_F0FF },
+ { "sqxr", 0x36, INSTR_RRE_FF },
+ { "meer", 0x37, INSTR_RRE_FF },
+ { "madr", 0x3e, INSTR_RRF_F0FF },
+ { "msdr", 0x3f, INSTR_RRF_F0FF },
+ { "lpxbr", 0x40, INSTR_RRE_FF },
+ { "lnxbr", 0x41, INSTR_RRE_FF },
+ { "ltxbr", 0x42, INSTR_RRE_FF },
+ { "lcxbr", 0x43, INSTR_RRE_FF },
+ { "ledbr", 0x44, INSTR_RRE_FF },
+ { "ldxbr", 0x45, INSTR_RRE_FF },
+ { "lexbr", 0x46, INSTR_RRE_FF },
+ { "fixbr", 0x47, INSTR_RRF_U0FF },
+ { "kxbr", 0x48, INSTR_RRE_FF },
+ { "cxbr", 0x49, INSTR_RRE_FF },
+ { "axbr", 0x4a, INSTR_RRE_FF },
+ { "sxbr", 0x4b, INSTR_RRE_FF },
+ { "mxbr", 0x4c, INSTR_RRE_FF },
+ { "dxbr", 0x4d, INSTR_RRE_FF },
+ { "tbedr", 0x50, INSTR_RRF_U0FF },
+ { "tbdr", 0x51, INSTR_RRF_U0FF },
+ { "diebr", 0x53, INSTR_RRF_FUFF },
+ { "fiebr", 0x57, INSTR_RRF_U0FF },
+ { "thder", 0x58, INSTR_RRE_RR },
+ { "thdr", 0x59, INSTR_RRE_RR },
+ { "didbr", 0x5b, INSTR_RRF_FUFF },
+ { "fidbr", 0x5f, INSTR_RRF_U0FF },
+ { "lpxr", 0x60, INSTR_RRE_FF },
+ { "lnxr", 0x61, INSTR_RRE_FF },
+ { "ltxr", 0x62, INSTR_RRE_FF },
+ { "lcxr", 0x63, INSTR_RRE_FF },
+ { "lxr", 0x65, INSTR_RRE_RR },
+ { "lexr", 0x66, INSTR_RRE_FF },
+ { "fixr", 0x67, INSTR_RRF_U0FF },
+ { "cxr", 0x69, INSTR_RRE_FF },
+ { "lzer", 0x74, INSTR_RRE_R0 },
+ { "lzdr", 0x75, INSTR_RRE_R0 },
+ { "lzxr", 0x76, INSTR_RRE_R0 },
+ { "fier", 0x77, INSTR_RRF_U0FF },
+ { "fidr", 0x7f, INSTR_RRF_U0FF },
+ { "sfpc", 0x84, INSTR_RRE_RR_OPT },
+ { "efpc", 0x8c, INSTR_RRE_RR_OPT },
+ { "cefbr", 0x94, INSTR_RRE_RF },
+ { "cdfbr", 0x95, INSTR_RRE_RF },
+ { "cxfbr", 0x96, INSTR_RRE_RF },
+ { "cfebr", 0x98, INSTR_RRF_U0RF },
+ { "cfdbr", 0x99, INSTR_RRF_U0RF },
+ { "cfxbr", 0x9a, INSTR_RRF_U0RF },
+ { "cefr", 0xb4, INSTR_RRE_RF },
+ { "cdfr", 0xb5, INSTR_RRE_RF },
+ { "cxfr", 0xb6, INSTR_RRE_RF },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_b9[] = {
+#ifdef CONFIG_64BIT
+ { "lpgr", 0x00, INSTR_RRE_RR },
+ { "lngr", 0x01, INSTR_RRE_RR },
+ { "ltgr", 0x02, INSTR_RRE_RR },
+ { "lcgr", 0x03, INSTR_RRE_RR },
+ { "lgr", 0x04, INSTR_RRE_RR },
+ { "lurag", 0x05, INSTR_RRE_RR },
+ { "lgbr", 0x06, INSTR_RRE_RR },
+ { "lghr", 0x07, INSTR_RRE_RR },
+ { "agr", 0x08, INSTR_RRE_RR },
+ { "sgr", 0x09, INSTR_RRE_RR },
+ { "algr", 0x0a, INSTR_RRE_RR },
+ { "slgr", 0x0b, INSTR_RRE_RR },
+ { "msgr", 0x0c, INSTR_RRE_RR },
+ { "dsgr", 0x0d, INSTR_RRE_RR },
+ { "eregg", 0x0e, INSTR_RRE_RR },
+ { "lrvgr", 0x0f, INSTR_RRE_RR },
+ { "lpgfr", 0x10, INSTR_RRE_RR },
+ { "lngfr", 0x11, INSTR_RRE_RR },
+ { "ltgfr", 0x12, INSTR_RRE_RR },
+ { "lcgfr", 0x13, INSTR_RRE_RR },
+ { "lgfr", 0x14, INSTR_RRE_RR },
+ { "llgfr", 0x16, INSTR_RRE_RR },
+ { "llgtr", 0x17, INSTR_RRE_RR },
+ { "agfr", 0x18, INSTR_RRE_RR },
+ { "sgfr", 0x19, INSTR_RRE_RR },
+ { "algfr", 0x1a, INSTR_RRE_RR },
+ { "slgfr", 0x1b, INSTR_RRE_RR },
+ { "msgfr", 0x1c, INSTR_RRE_RR },
+ { "dsgfr", 0x1d, INSTR_RRE_RR },
+ { "cgr", 0x20, INSTR_RRE_RR },
+ { "clgr", 0x21, INSTR_RRE_RR },
+ { "sturg", 0x25, INSTR_RRE_RR },
+ { "lbr", 0x26, INSTR_RRE_RR },
+ { "lhr", 0x27, INSTR_RRE_RR },
+ { "cgfr", 0x30, INSTR_RRE_RR },
+ { "clgfr", 0x31, INSTR_RRE_RR },
+ { "bctgr", 0x46, INSTR_RRE_RR },
+ { "ngr", 0x80, INSTR_RRE_RR },
+ { "ogr", 0x81, INSTR_RRE_RR },
+ { "xgr", 0x82, INSTR_RRE_RR },
+ { "flogr", 0x83, INSTR_RRE_RR },
+ { "llgcr", 0x84, INSTR_RRE_RR },
+ { "llghr", 0x85, INSTR_RRE_RR },
+ { "mlgr", 0x86, INSTR_RRE_RR },
+ { "dlgr", 0x87, INSTR_RRE_RR },
+ { "alcgr", 0x88, INSTR_RRE_RR },
+ { "slbgr", 0x89, INSTR_RRE_RR },
+ { "cspg", 0x8a, INSTR_RRE_RR },
+ { "idte", 0x8e, INSTR_RRF_R0RR },
+ { "llcr", 0x94, INSTR_RRE_RR },
+ { "llhr", 0x95, INSTR_RRE_RR },
+ { "esea", 0x9d, INSTR_RRE_R0 },
+ { "lptea", 0xaa, INSTR_RRF_RURR },
+ { "cu14", 0xb0, INSTR_RRF_M0RR },
+ { "cu24", 0xb1, INSTR_RRF_M0RR },
+ { "cu41", 0xb2, INSTR_RRF_M0RR },
+ { "cu42", 0xb3, INSTR_RRF_M0RR },
+#endif
+ { "kmac", 0x1e, INSTR_RRE_RR },
+ { "lrvr", 0x1f, INSTR_RRE_RR },
+ { "km", 0x2e, INSTR_RRE_RR },
+ { "kmc", 0x2f, INSTR_RRE_RR },
+ { "kimd", 0x3e, INSTR_RRE_RR },
+ { "klmd", 0x3f, INSTR_RRE_RR },
+ { "epsw", 0x8d, INSTR_RRE_RR },
+ { "trtt", 0x90, INSTR_RRE_RR },
+ { "trtt", 0x90, INSTR_RRF_M0RR },
+ { "trto", 0x91, INSTR_RRE_RR },
+ { "trto", 0x91, INSTR_RRF_M0RR },
+ { "trot", 0x92, INSTR_RRE_RR },
+ { "trot", 0x92, INSTR_RRF_M0RR },
+ { "troo", 0x93, INSTR_RRE_RR },
+ { "troo", 0x93, INSTR_RRF_M0RR },
+ { "mlr", 0x96, INSTR_RRE_RR },
+ { "dlr", 0x97, INSTR_RRE_RR },
+ { "alcr", 0x98, INSTR_RRE_RR },
+ { "slbr", 0x99, INSTR_RRE_RR },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c0[] = {
+#ifdef CONFIG_64BIT
+ { "lgfi", 0x01, INSTR_RIL_RI },
+ { "xihf", 0x06, INSTR_RIL_RU },
+ { "xilf", 0x07, INSTR_RIL_RU },
+ { "iihf", 0x08, INSTR_RIL_RU },
+ { "iilf", 0x09, INSTR_RIL_RU },
+ { "nihf", 0x0a, INSTR_RIL_RU },
+ { "nilf", 0x0b, INSTR_RIL_RU },
+ { "oihf", 0x0c, INSTR_RIL_RU },
+ { "oilf", 0x0d, INSTR_RIL_RU },
+ { "llihf", 0x0e, INSTR_RIL_RU },
+ { "llilf", 0x0f, INSTR_RIL_RU },
+#endif
+ { "larl", 0x00, INSTR_RIL_RP },
+ { "brcl", 0x04, INSTR_RIL_UP },
+ { "brasl", 0x05, INSTR_RIL_RP },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c2[] = {
+#ifdef CONFIG_64BIT
+ { "slgfi", 0x04, INSTR_RIL_RU },
+ { "slfi", 0x05, INSTR_RIL_RU },
+ { "agfi", 0x08, INSTR_RIL_RI },
+ { "afi", 0x09, INSTR_RIL_RI },
+ { "algfi", 0x0a, INSTR_RIL_RU },
+ { "alfi", 0x0b, INSTR_RIL_RU },
+ { "cgfi", 0x0c, INSTR_RIL_RI },
+ { "cfi", 0x0d, INSTR_RIL_RI },
+ { "clgfi", 0x0e, INSTR_RIL_RU },
+ { "clfi", 0x0f, INSTR_RIL_RU },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c8[] = {
+#ifdef CONFIG_64BIT
+ { "mvcos", 0x00, INSTR_SSF_RRDRD },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_e3[] = {
+#ifdef CONFIG_64BIT
+ { "ltg", 0x02, INSTR_RXY_RRRD },
+ { "lrag", 0x03, INSTR_RXY_RRRD },
+ { "lg", 0x04, INSTR_RXY_RRRD },
+ { "cvby", 0x06, INSTR_RXY_RRRD },
+ { "ag", 0x08, INSTR_RXY_RRRD },
+ { "sg", 0x09, INSTR_RXY_RRRD },
+ { "alg", 0x0a, INSTR_RXY_RRRD },
+ { "slg", 0x0b, INSTR_RXY_RRRD },
+ { "msg", 0x0c, INSTR_RXY_RRRD },
+ { "dsg", 0x0d, INSTR_RXY_RRRD },
+ { "cvbg", 0x0e, INSTR_RXY_RRRD },
+ { "lrvg", 0x0f, INSTR_RXY_RRRD },
+ { "lt", 0x12, INSTR_RXY_RRRD },
+ { "lray", 0x13, INSTR_RXY_RRRD },
+ { "lgf", 0x14, INSTR_RXY_RRRD },
+ { "lgh", 0x15, INSTR_RXY_RRRD },
+ { "llgf", 0x16, INSTR_RXY_RRRD },
+ { "llgt", 0x17, INSTR_RXY_RRRD },
+ { "agf", 0x18, INSTR_RXY_RRRD },
+ { "sgf", 0x19, INSTR_RXY_RRRD },
+ { "algf", 0x1a, INSTR_RXY_RRRD },
+ { "slgf", 0x1b, INSTR_RXY_RRRD },
+ { "msgf", 0x1c, INSTR_RXY_RRRD },
+ { "dsgf", 0x1d, INSTR_RXY_RRRD },
+ { "cg", 0x20, INSTR_RXY_RRRD },
+ { "clg", 0x21, INSTR_RXY_RRRD },
+ { "stg", 0x24, INSTR_RXY_RRRD },
+ { "cvdy", 0x26, INSTR_RXY_RRRD },
+ { "cvdg", 0x2e, INSTR_RXY_RRRD },
+ { "strvg", 0x2f, INSTR_RXY_RRRD },
+ { "cgf", 0x30, INSTR_RXY_RRRD },
+ { "clgf", 0x31, INSTR_RXY_RRRD },
+ { "strvh", 0x3f, INSTR_RXY_RRRD },
+ { "bctg", 0x46, INSTR_RXY_RRRD },
+ { "sty", 0x50, INSTR_RXY_RRRD },
+ { "msy", 0x51, INSTR_RXY_RRRD },
+ { "ny", 0x54, INSTR_RXY_RRRD },
+ { "cly", 0x55, INSTR_RXY_RRRD },
+ { "oy", 0x56, INSTR_RXY_RRRD },
+ { "xy", 0x57, INSTR_RXY_RRRD },
+ { "ly", 0x58, INSTR_RXY_RRRD },
+ { "cy", 0x59, INSTR_RXY_RRRD },
+ { "ay", 0x5a, INSTR_RXY_RRRD },
+ { "sy", 0x5b, INSTR_RXY_RRRD },
+ { "aly", 0x5e, INSTR_RXY_RRRD },
+ { "sly", 0x5f, INSTR_RXY_RRRD },
+ { "sthy", 0x70, INSTR_RXY_RRRD },
+ { "lay", 0x71, INSTR_RXY_RRRD },
+ { "stcy", 0x72, INSTR_RXY_RRRD },
+ { "icy", 0x73, INSTR_RXY_RRRD },
+ { "lb", 0x76, INSTR_RXY_RRRD },
+ { "lgb", 0x77, INSTR_RXY_RRRD },
+ { "lhy", 0x78, INSTR_RXY_RRRD },
+ { "chy", 0x79, INSTR_RXY_RRRD },
+ { "ahy", 0x7a, INSTR_RXY_RRRD },
+ { "shy", 0x7b, INSTR_RXY_RRRD },
+ { "ng", 0x80, INSTR_RXY_RRRD },
+ { "og", 0x81, INSTR_RXY_RRRD },
+ { "xg", 0x82, INSTR_RXY_RRRD },
+ { "mlg", 0x86, INSTR_RXY_RRRD },
+ { "dlg", 0x87, INSTR_RXY_RRRD },
+ { "alcg", 0x88, INSTR_RXY_RRRD },
+ { "slbg", 0x89, INSTR_RXY_RRRD },
+ { "stpq", 0x8e, INSTR_RXY_RRRD },
+ { "lpq", 0x8f, INSTR_RXY_RRRD },
+ { "llgc", 0x90, INSTR_RXY_RRRD },
+ { "llgh", 0x91, INSTR_RXY_RRRD },
+ { "llc", 0x94, INSTR_RXY_RRRD },
+ { "llh", 0x95, INSTR_RXY_RRRD },
+#endif
+ { "lrv", 0x1e, INSTR_RXY_RRRD },
+ { "lrvh", 0x1f, INSTR_RXY_RRRD },
+ { "strv", 0x3e, INSTR_RXY_RRRD },
+ { "ml", 0x96, INSTR_RXY_RRRD },
+ { "dl", 0x97, INSTR_RXY_RRRD },
+ { "alc", 0x98, INSTR_RXY_RRRD },
+ { "slb", 0x99, INSTR_RXY_RRRD },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_e5[] = {
+#ifdef CONFIG_64BIT
+ { "strag", 0x02, INSTR_SSE_RDRD },
+#endif
+ { "lasp", 0x00, INSTR_SSE_RDRD },
+ { "tprot", 0x01, INSTR_SSE_RDRD },
+ { "mvcsk", 0x0e, INSTR_SSE_RDRD },
+ { "mvcdk", 0x0f, INSTR_SSE_RDRD },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_eb[] = {
+#ifdef CONFIG_64BIT
+ { "lmg", 0x04, INSTR_RSY_RRRD },
+ { "srag", 0x0a, INSTR_RSY_RRRD },
+ { "slag", 0x0b, INSTR_RSY_RRRD },
+ { "srlg", 0x0c, INSTR_RSY_RRRD },
+ { "sllg", 0x0d, INSTR_RSY_RRRD },
+ { "tracg", 0x0f, INSTR_RSY_RRRD },
+ { "csy", 0x14, INSTR_RSY_RRRD },
+ { "rllg", 0x1c, INSTR_RSY_RRRD },
+ { "clmh", 0x20, INSTR_RSY_RURD },
+ { "clmy", 0x21, INSTR_RSY_RURD },
+ { "stmg", 0x24, INSTR_RSY_RRRD },
+ { "stctg", 0x25, INSTR_RSY_CCRD },
+ { "stmh", 0x26, INSTR_RSY_RRRD },
+ { "stcmh", 0x2c, INSTR_RSY_RURD },
+ { "stcmy", 0x2d, INSTR_RSY_RURD },
+ { "lctlg", 0x2f, INSTR_RSY_CCRD },
+ { "csg", 0x30, INSTR_RSY_RRRD },
+ { "cdsy", 0x31, INSTR_RSY_RRRD },
+ { "cdsg", 0x3e, INSTR_RSY_RRRD },
+ { "bxhg", 0x44, INSTR_RSY_RRRD },
+ { "bxleg", 0x45, INSTR_RSY_RRRD },
+ { "tmy", 0x51, INSTR_SIY_URD },
+ { "mviy", 0x52, INSTR_SIY_URD },
+ { "niy", 0x54, INSTR_SIY_URD },
+ { "cliy", 0x55, INSTR_SIY_URD },
+ { "oiy", 0x56, INSTR_SIY_URD },
+ { "xiy", 0x57, INSTR_SIY_URD },
+ { "icmh", 0x80, INSTR_RSE_RURD },
+ { "icmh", 0x80, INSTR_RSY_RURD },
+ { "icmy", 0x81, INSTR_RSY_RURD },
+ { "clclu", 0x8f, INSTR_RSY_RRRD },
+ { "stmy", 0x90, INSTR_RSY_RRRD },
+ { "lmh", 0x96, INSTR_RSY_RRRD },
+ { "lmy", 0x98, INSTR_RSY_RRRD },
+ { "lamy", 0x9a, INSTR_RSY_AARD },
+ { "stamy", 0x9b, INSTR_RSY_AARD },
+#endif
+ { "rll", 0x1d, INSTR_RSY_RRRD },
+ { "mvclu", 0x8e, INSTR_RSY_RRRD },
+ { "tp", 0xc0, INSTR_RSL_R0RD },
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_ec[] = {
+#ifdef CONFIG_64BIT
+ { "brxhg", 0x44, INSTR_RIE_RRP },
+ { "brxlg", 0x45, INSTR_RIE_RRP },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_ed[] = {
+#ifdef CONFIG_64BIT
+ { "mayl", 0x38, INSTR_RXF_FRRDF },
+ { "myl", 0x39, INSTR_RXF_FRRDF },
+ { "may", 0x3a, INSTR_RXF_FRRDF },
+ { "my", 0x3b, INSTR_RXF_FRRDF },
+ { "mayh", 0x3c, INSTR_RXF_FRRDF },
+ { "myh", 0x3d, INSTR_RXF_FRRDF },
+ { "ley", 0x64, INSTR_RXY_FRRD },
+ { "ldy", 0x65, INSTR_RXY_FRRD },
+ { "stey", 0x66, INSTR_RXY_FRRD },
+ { "stdy", 0x67, INSTR_RXY_FRRD },
+#endif
+ { "ldeb", 0x04, INSTR_RXE_FRRD },
+ { "lxdb", 0x05, INSTR_RXE_FRRD },
+ { "lxeb", 0x06, INSTR_RXE_FRRD },
+ { "mxdb", 0x07, INSTR_RXE_FRRD },
+ { "keb", 0x08, INSTR_RXE_FRRD },
+ { "ceb", 0x09, INSTR_RXE_FRRD },
+ { "aeb", 0x0a, INSTR_RXE_FRRD },
+ { "seb", 0x0b, INSTR_RXE_FRRD },
+ { "mdeb", 0x0c, INSTR_RXE_FRRD },
+ { "deb", 0x0d, INSTR_RXE_FRRD },
+ { "maeb", 0x0e, INSTR_RXF_FRRDF },
+ { "mseb", 0x0f, INSTR_RXF_FRRDF },
+ { "tceb", 0x10, INSTR_RXE_FRRD },
+ { "tcdb", 0x11, INSTR_RXE_FRRD },
+ { "tcxb", 0x12, INSTR_RXE_FRRD },
+ { "sqeb", 0x14, INSTR_RXE_FRRD },
+ { "sqdb", 0x15, INSTR_RXE_FRRD },
+ { "meeb", 0x17, INSTR_RXE_FRRD },
+ { "kdb", 0x18, INSTR_RXE_FRRD },
+ { "cdb", 0x19, INSTR_RXE_FRRD },
+ { "adb", 0x1a, INSTR_RXE_FRRD },
+ { "sdb", 0x1b, INSTR_RXE_FRRD },
+ { "mdb", 0x1c, INSTR_RXE_FRRD },
+ { "ddb", 0x1d, INSTR_RXE_FRRD },
+ { "madb", 0x1e, INSTR_RXF_FRRDF },
+ { "msdb", 0x1f, INSTR_RXF_FRRDF },
+ { "lde", 0x24, INSTR_RXE_FRRD },
+ { "lxd", 0x25, INSTR_RXE_FRRD },
+ { "lxe", 0x26, INSTR_RXE_FRRD },
+ { "mae", 0x2e, INSTR_RXF_FRRDF },
+ { "mse", 0x2f, INSTR_RXF_FRRDF },
+ { "sqe", 0x34, INSTR_RXE_FRRD },
+ { "mee", 0x37, INSTR_RXE_FRRD },
+ { "mad", 0x3e, INSTR_RXF_FRRDF },
+ { "msd", 0x3f, INSTR_RXF_FRRDF },
+ { "", 0, INSTR_INVALID }
+};
+
+/* Extracts an operand value from an instruction. */
+static unsigned int extract_operand(unsigned char *code,
+ const struct operand *operand)
+{
+ unsigned int val;
+ int bits;
+
+ /* Extract fragments of the operand byte for byte. */
+ code += operand->shift / 8;
+ bits = (operand->shift & 7) + operand->bits;
+ val = 0;
+ do {
+ val <<= 8;
+ val |= (unsigned int) *code++;
+ bits -= 8;
+ } while (bits > 0);
+ val >>= -bits;
+ val &= ((1U << (operand->bits - 1)) << 1) - 1;
+
+ /* Check for special long displacement case. */
+ if (operand->bits == 20 && operand->shift == 20)
+ val = (val & 0xff) << 12 | (val & 0xfff00) >> 8;
+
+ /* Sign extend value if the operand is signed or pc relative. */
+ if ((operand->flags & (OPERAND_SIGNED | OPERAND_PCREL)) &&
+ (val & (1U << (operand->bits - 1))))
+ val |= (-1U << (operand->bits - 1)) << 1;
+
+ /* Double value if the operand is pc relative. */
+ if (operand->flags & OPERAND_PCREL)
+ val <<= 1;
+
+ /* Length x in an instructions has real length x + 1. */
+ if (operand->flags & OPERAND_LENGTH)
+ val++;
+ return val;
+}
+
+static inline int insn_length(unsigned char code)
+{
+ return ((((int) code + 64) >> 7) + 1) << 1;
+}
+
+static struct insn *find_insn(unsigned char *code)
+{
+ unsigned char opfrag = code[1];
+ unsigned char opmask;
+ struct insn *table;
+
+ switch (code[0]) {
+ case 0x01:
+ table = opcode_01;
+ break;
+ case 0xa5:
+ table = opcode_a5;
+ break;
+ case 0xa7:
+ table = opcode_a7;
+ break;
+ case 0xb2:
+ table = opcode_b2;
+ break;
+ case 0xb3:
+ table = opcode_b3;
+ break;
+ case 0xb9:
+ table = opcode_b9;
+ break;
+ case 0xc0:
+ table = opcode_c0;
+ break;
+ case 0xc2:
+ table = opcode_c2;
+ break;
+ case 0xc8:
+ table = opcode_c8;
+ break;
+ case 0xe3:
+ table = opcode_e3;
+ opfrag = code[5];
+ break;
+ case 0xe5:
+ table = opcode_e5;
+ break;
+ case 0xeb:
+ table = opcode_eb;
+ opfrag = code[5];
+ break;
+ case 0xec:
+ table = opcode_ec;
+ opfrag = code[5];
+ break;
+ case 0xed:
+ table = opcode_ed;
+ opfrag = code[5];
+ break;
+ default:
+ table = opcode;
+ opfrag = code[0];
+ break;
+ }
+ while (table->format != INSTR_INVALID) {
+ opmask = formats[table->format][0];
+ if (table->opfrag == (opfrag & opmask))
+ return table;
+ table++;
+ }
+ return NULL;
+}
+
+static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
+{
+ struct insn *insn;
+ const unsigned char *ops;
+ const struct operand *operand;
+ unsigned int value;
+ char separator;
+ char *ptr;
+
+ ptr = buffer;
+ insn = find_insn(code);
+ if (insn) {
+ ptr += sprintf(ptr, "%.5s\t", insn->name);
+ /* Extract the operands. */
+ separator = 0;
+ for (ops = formats[insn->format] + 1; *ops != 0; ops++) {
+ operand = operands + *ops;
+ value = extract_operand(code, operand);
+ if ((operand->flags & OPERAND_INDEX) && value == 0)
+ continue;
+ if ((operand->flags & OPERAND_BASE) &&
+ value == 0 && separator == '(') {
+ separator = ',';
+ continue;
+ }
+ if (separator)
+ ptr += sprintf(ptr, "%c", separator);
+ if (operand->flags & OPERAND_GPR)
+ ptr += sprintf(ptr, "%%r%i", value);
+ else if (operand->flags & OPERAND_FPR)
+ ptr += sprintf(ptr, "%%f%i", value);
+ else if (operand->flags & OPERAND_AR)
+ ptr += sprintf(ptr, "%%a%i", value);
+ else if (operand->flags & OPERAND_CR)
+ ptr += sprintf(ptr, "%%c%i", value);
+ else if (operand->flags & OPERAND_PCREL)
+ ptr += sprintf(ptr, "%lx", value + addr);
+ else if (operand->flags & OPERAND_SIGNED)
+ ptr += sprintf(ptr, "%i", value);
+ else
+ ptr += sprintf(ptr, "%u", value);
+ if (operand->flags & OPERAND_DISP)
+ separator = '(';
+ else if (operand->flags & OPERAND_BASE) {
+ ptr += sprintf(ptr, ")");
+ separator = ',';
+ } else
+ separator = ',';
+ }
+ } else
+ ptr += sprintf(ptr, "unknown");
+ return (int) (ptr - buffer);
+}
+
+void show_code(struct pt_regs *regs)
+{
+ char *mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl";
+ unsigned char code[64];
+ char buffer[64], *ptr;
+ mm_segment_t old_fs;
+ unsigned long addr;
+ int start, end, opsize, hops, i;
+
+ /* Get a snapshot of the 64 bytes surrounding the fault address. */
+ old_fs = get_fs();
+ set_fs((regs->psw.mask & PSW_MASK_PSTATE) ? USER_DS : KERNEL_DS);
+ for (start = 32; start && regs->psw.addr >= 34 - start; start -= 2) {
+ addr = regs->psw.addr - 34 + start;
+ if (__copy_from_user(code + start - 2,
+ (char __user *) addr, 2))
+ break;
+ }
+ for (end = 32; end < 64; end += 2) {
+ addr = regs->psw.addr + end - 32;
+ if (__copy_from_user(code + end,
+ (char __user *) addr, 2))
+ break;
+ }
+ set_fs(old_fs);
+ /* Code snapshot useable ? */
+ if ((regs->psw.addr & 1) || start >= end) {
+ printk("%s Code: Bad PSW.\n", mode);
+ return;
+ }
+ /* Find a starting point for the disassembly. */
+ while (start < 32) {
+ hops = 0;
+ for (i = 0, hops = 0; start + i < 32 && hops < 3; hops++) {
+ if (!find_insn(code + start + i))
+ break;
+ i += insn_length(code[start + i]);
+ }
+ if (start + i == 32)
+ /* Looks good, sequence ends at PSW. */
+ break;
+ start += 2;
+ }
+ /* Decode the instructions. */
+ ptr = buffer;
+ ptr += sprintf(ptr, "%s Code:", mode);
+ hops = 0;
+ while (start < end && hops < 8) {
+ *ptr++ = (start == 32) ? '>' : ' ';
+ addr = regs->psw.addr + start - 32;
+ ptr += sprintf(ptr, ONELONG, addr);
+ opsize = insn_length(code[start]);
+ if (start + opsize >= end)
+ break;
+ for (i = 0; i < opsize; i++)
+ ptr += sprintf(ptr, "%02x", code[start + i]);
+ *ptr++ = '\t';
+ if (i < 6)
+ *ptr++ = '\t';
+ ptr += print_insn(ptr, code + start, addr);
+ start += opsize;
+ printk(buffer);
+ ptr = buffer;
+ ptr += sprintf(ptr, "\n ");
+ hops++;
+ }
+ printk("\n");
+}
break;
#endif
/*
- * Finish memory detection at the first hole, unless
- * - we reached the hsa -> skip it.
- * - we know there must be more.
+ * Finish memory detection at the first hole
+ * if storage size is unknown.
*/
- if (cc == -1UL && !memsize && old_addr != ADDR2G)
+ if (cc == -1UL && !memsize)
break;
if (memsize && addr >= memsize)
break;
bnz BASED(sysc_tracesys)
basr %r14,%r8 # call sys_xxxx
st %r2,SP_R2(%r15) # store return value (change R2 on stack)
- # ATTENTION: check sys_execve_glue before
- # changing anything here !!
sysc_return:
tm SP_PSW+1(%r15),0x01 # returning to user ?
b BASED(sysc_return)
#
-# clone, fork, vfork, exec and sigreturn need glue,
-# because they all expect pt_regs as parameter,
-# but are called with different parameter.
-# return-address is set up above
+# kernel_execve function needs to deal with pt_regs that is not
+# at the usual place
#
-sys_clone_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- l %r1,BASED(.Lclone)
- br %r1 # branch to sys_clone
-
-sys_fork_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- l %r1,BASED(.Lfork)
- br %r1 # branch to sys_fork
-
-sys_vfork_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- l %r1,BASED(.Lvfork)
- br %r1 # branch to sys_vfork
-
-sys_execve_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- l %r1,BASED(.Lexecve)
- lr %r12,%r14 # save return address
- basr %r14,%r1 # call sys_execve
- ltr %r2,%r2 # check if execve failed
- bnz 0(%r12) # it did fail -> store result in gpr2
- b 4(%r12) # SKIP ST 2,SP_R2(15) after BASR 14,8
- # in system_call/sysc_tracesys
-
-sys_sigreturn_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
- l %r1,BASED(.Lsigreturn)
- br %r1 # branch to sys_sigreturn
-
-sys_rt_sigreturn_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
- l %r1,BASED(.Lrt_sigreturn)
- br %r1 # branch to sys_sigreturn
-
-sys_sigaltstack_glue:
- la %r4,SP_PTREGS(%r15) # load pt_regs as parameter
- l %r1,BASED(.Lsigaltstack)
- br %r1 # branch to sys_sigreturn
+ .globl kernel_execve
+kernel_execve:
+ stm %r12,%r15,48(%r15)
+ lr %r14,%r15
+ l %r13,__LC_SVC_NEW_PSW+4
+ s %r15,BASED(.Lc_spsize)
+ st %r14,__SF_BACKCHAIN(%r15)
+ la %r12,SP_PTREGS(%r15)
+ xc 0(__PT_SIZE,%r12),0(%r12)
+ l %r1,BASED(.Ldo_execve)
+ lr %r5,%r12
+ basr %r14,%r1
+ ltr %r2,%r2
+ be BASED(0f)
+ a %r15,BASED(.Lc_spsize)
+ lm %r12,%r15,48(%r15)
+ br %r14
+ # execve succeeded.
+0: stnsm __SF_EMPTY(%r15),0xfc # disable interrupts
+ l %r15,__LC_KERNEL_STACK # load ksp
+ s %r15,BASED(.Lc_spsize) # make room for registers & psw
+ l %r9,__LC_THREAD_INFO
+ mvc SP_PTREGS(__PT_SIZE,%r15),0(%r12) # copy pt_regs
+ xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
+ stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
+ l %r1,BASED(.Lexecve_tail)
+ basr %r14,%r1
+ b BASED(sysc_return)
/*
* Program check handler routine
.Ldo_extint: .long do_extint
.Ldo_signal: .long do_signal
.Lhandle_per: .long do_single_step
+.Ldo_execve: .long do_execve
+.Lexecve_tail: .long execve_tail
.Ljump_table: .long pgm_check_table
.Lschedule: .long schedule
-.Lclone: .long sys_clone
-.Lexecve: .long sys_execve
-.Lfork: .long sys_fork
-.Lrt_sigreturn: .long sys_rt_sigreturn
-.Lrt_sigsuspend:
- .long sys_rt_sigsuspend
-.Lsigreturn: .long sys_sigreturn
-.Lsigsuspend: .long sys_sigsuspend
-.Lsigaltstack: .long sys_sigaltstack
.Ltrace: .long syscall_trace
-.Lvfork: .long sys_vfork
.Lschedtail: .long schedule_tail
.Lsysc_table: .long sys_call_table
#ifdef CONFIG_TRACE_IRQFLAGS
jnz sysc_tracesys
basr %r14,%r8 # call sys_xxxx
stg %r2,SP_R2(%r15) # store return value (change R2 on stack)
- # ATTENTION: check sys_execve_glue before
- # changing anything here !!
sysc_return:
tm SP_PSW+1(%r15),0x01 # returning to user ?
j sysc_return
#
-# clone, fork, vfork, exec and sigreturn need glue,
-# because they all expect pt_regs as parameter,
-# but are called with different parameter.
-# return-address is set up above
+# kernel_execve function needs to deal with pt_regs that is not
+# at the usual place
#
-sys_clone_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- jg sys_clone # branch to sys_clone
-
-#ifdef CONFIG_COMPAT
-sys32_clone_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- jg sys32_clone # branch to sys32_clone
-#endif
-
-sys_fork_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- jg sys_fork # branch to sys_fork
-
-sys_vfork_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- jg sys_vfork # branch to sys_vfork
-
-sys_execve_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- lgr %r12,%r14 # save return address
- brasl %r14,sys_execve # call sys_execve
- ltgr %r2,%r2 # check if execve failed
- bnz 0(%r12) # it did fail -> store result in gpr2
- b 6(%r12) # SKIP STG 2,SP_R2(15) in
- # system_call/sysc_tracesys
-#ifdef CONFIG_COMPAT
-sys32_execve_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs
- lgr %r12,%r14 # save return address
- brasl %r14,sys32_execve # call sys32_execve
- ltgr %r2,%r2 # check if execve failed
- bnz 0(%r12) # it did fail -> store result in gpr2
- b 6(%r12) # SKIP STG 2,SP_R2(15) in
- # system_call/sysc_tracesys
-#endif
-
-sys_sigreturn_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
- jg sys_sigreturn # branch to sys_sigreturn
-
-#ifdef CONFIG_COMPAT
-sys32_sigreturn_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
- jg sys32_sigreturn # branch to sys32_sigreturn
-#endif
-
-sys_rt_sigreturn_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
- jg sys_rt_sigreturn # branch to sys_sigreturn
-
-#ifdef CONFIG_COMPAT
-sys32_rt_sigreturn_glue:
- la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
- jg sys32_rt_sigreturn # branch to sys32_sigreturn
-#endif
-
-sys_sigaltstack_glue:
- la %r4,SP_PTREGS(%r15) # load pt_regs as parameter
- jg sys_sigaltstack # branch to sys_sigreturn
-
-#ifdef CONFIG_COMPAT
-sys32_sigaltstack_glue:
- la %r4,SP_PTREGS(%r15) # load pt_regs as parameter
- jg sys32_sigaltstack_wrapper # branch to sys_sigreturn
-#endif
+ .globl kernel_execve
+kernel_execve:
+ stmg %r12,%r15,96(%r15)
+ lgr %r14,%r15
+ aghi %r15,-SP_SIZE
+ stg %r14,__SF_BACKCHAIN(%r15)
+ la %r12,SP_PTREGS(%r15)
+ xc 0(__PT_SIZE,%r12),0(%r12)
+ lgr %r5,%r12
+ brasl %r14,do_execve
+ ltgfr %r2,%r2
+ je 0f
+ aghi %r15,SP_SIZE
+ lmg %r12,%r15,96(%r15)
+ br %r14
+ # execve succeeded.
+0: stnsm __SF_EMPTY(%r15),0xfc # disable interrupts
+ lg %r15,__LC_KERNEL_STACK # load ksp
+ aghi %r15,-SP_SIZE # make room for registers & psw
+ lg %r13,__LC_SVC_NEW_PSW+8
+ lg %r9,__LC_THREAD_INFO
+ mvc SP_PTREGS(__PT_SIZE,%r15),0(%r12) # copy pt_regs
+ xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+ stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
+ brasl %r14,execve_tail
+ j sysc_return
/*
* Program check handler routine
basr %r13,0 # get base
.LPG1: sll %r13,1 # remove high order bit
srl %r13,1
- lhi %r1,1 # mode 1 = esame
+
+#ifdef CONFIG_ZFCPDUMP
+
+ # check if we have been ipled using zfcp dump:
+
+ tm 0xb9,0x01 # test if subchannel is enabled
+ jno .nodump # subchannel disabled
+ l %r1,0xb8
+ la %r5,.Lipl_schib-.LPG1(%r13)
+ stsch 0(%r5) # get schib of subchannel
+ jne .nodump # schib not available
+ tm 5(%r5),0x01 # devno valid?
+ jno .nodump
+ tm 4(%r5),0x80 # qdio capable device?
+ jno .nodump
+ l %r2,20(%r0) # address of ipl parameter block
+ lhi %r3,0
+ ic %r3,0x148(%r2) # get opt field
+ chi %r3,0x20 # load with dump?
+ jne .nodump
+
+ # store all prefix registers in case of load with dump:
+
+ la %r7,0 # base register for 0 page
+ la %r8,0 # first cpu
+ l %r11,.Lpref_arr_ptr-.LPG1(%r13) # address of prefix array
+ ahi %r11,4 # skip boot cpu
+ lr %r12,%r11
+ ahi %r12,(CONFIG_NR_CPUS*4) # end of prefix array
+ stap .Lcurrent_cpu+2-.LPG1(%r13) # store current cpu addr
+1:
+ cl %r8,.Lcurrent_cpu-.LPG1(%r13) # is ipl cpu ?
+ je 4f # if yes get next cpu
+2:
+ lr %r9,%r7
+ sigp %r9,%r8,0x9 # stop & store status of cpu
+ brc 8,3f # accepted
+ brc 4,4f # status stored: next cpu
+ brc 2,2b # busy: try again
+ brc 1,4f # not op: next cpu
+3:
+ mvc 0(4,%r11),264(%r7) # copy prefix register to prefix array
+ ahi %r11,4 # next element in prefix array
+ clr %r11,%r12
+ je 5f # no more space in prefix array
+4:
+ ahi %r8,1 # next cpu (r8 += 1)
+ cl %r8,.Llast_cpu-.LPG1(%r13) # is last possible cpu ?
+ jl 1b # jump if not last cpu
+5:
+ lhi %r1,2 # mode 2 = esame (dump)
+ j 6f
+ .align 4
+.Lipl_schib:
+ .rept 13
+ .long 0
+ .endr
+.nodump:
+ lhi %r1,1 # mode 1 = esame (normal ipl)
+6:
+#else
+ lhi %r1,1 # mode 1 = esame (normal ipl)
+#endif /* CONFIG_ZFCPDUMP */
mvi __LC_AR_MODE_ID,1 # set esame flag
slr %r0,%r0 # set cpuid to zero
sigp %r1,%r0,0x12 # switch to esame mode
.L4malign:.quad 0xffffffffffc00000
.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
.Lnop: .long 0x07000700
+#ifdef CONFIG_ZFCPDUMP
+.Lcurrent_cpu:
+ .long 0x0
+.Llast_cpu:
+ .long 0x0000ffff
+.Lpref_arr_ptr:
+ .long zfcpdump_prefix_array
+#endif /* CONFIG_ZFCPDUMP */
.Lparmaddr:
.quad PARMAREA
.align 64
#define SCCB_LOADPARM (&s390_readinfo_sccb.loadparm)
#define SCCB_FLAG (s390_readinfo_sccb.flags)
-enum ipl_type {
- IPL_TYPE_NONE = 1,
- IPL_TYPE_UNKNOWN = 2,
- IPL_TYPE_CCW = 4,
- IPL_TYPE_FCP = 8,
- IPL_TYPE_NSS = 16,
-};
-
-#define IPL_NONE_STR "none"
-#define IPL_UNKNOWN_STR "unknown"
-#define IPL_CCW_STR "ccw"
-#define IPL_FCP_STR "fcp"
-#define IPL_NSS_STR "nss"
-
-/*
- * Must be in data section since the bss section
- * is not cleared when these are accessed.
- */
-u16 ipl_devno __attribute__((__section__(".data"))) = 0;
-u32 ipl_flags __attribute__((__section__(".data"))) = 0;
+#define IPL_UNKNOWN_STR "unknown"
+#define IPL_CCW_STR "ccw"
+#define IPL_FCP_STR "fcp"
+#define IPL_FCP_DUMP_STR "fcp_dump"
+#define IPL_NSS_STR "nss"
static char *ipl_type_str(enum ipl_type type)
{
switch (type) {
- case IPL_TYPE_NONE:
- return IPL_NONE_STR;
case IPL_TYPE_CCW:
return IPL_CCW_STR;
case IPL_TYPE_FCP:
return IPL_FCP_STR;
+ case IPL_TYPE_FCP_DUMP:
+ return IPL_FCP_DUMP_STR;
case IPL_TYPE_NSS:
return IPL_NSS_STR;
case IPL_TYPE_UNKNOWN:
}
}
+enum dump_type {
+ DUMP_TYPE_NONE = 1,
+ DUMP_TYPE_CCW = 2,
+ DUMP_TYPE_FCP = 4,
+};
+
+#define DUMP_NONE_STR "none"
+#define DUMP_CCW_STR "ccw"
+#define DUMP_FCP_STR "fcp"
+
+static char *dump_type_str(enum dump_type type)
+{
+ switch (type) {
+ case DUMP_TYPE_NONE:
+ return DUMP_NONE_STR;
+ case DUMP_TYPE_CCW:
+ return DUMP_CCW_STR;
+ case DUMP_TYPE_FCP:
+ return DUMP_FCP_STR;
+ default:
+ return NULL;
+ }
+}
+
+/*
+ * Must be in data section since the bss section
+ * is not cleared when these are accessed.
+ */
+static u16 ipl_devno __attribute__((__section__(".data"))) = 0;
+u32 ipl_flags __attribute__((__section__(".data"))) = 0;
+
enum ipl_method {
- IPL_METHOD_NONE,
- IPL_METHOD_CCW_CIO,
- IPL_METHOD_CCW_DIAG,
- IPL_METHOD_CCW_VM,
- IPL_METHOD_FCP_RO_DIAG,
- IPL_METHOD_FCP_RW_DIAG,
- IPL_METHOD_FCP_RO_VM,
- IPL_METHOD_NSS,
+ REIPL_METHOD_CCW_CIO,
+ REIPL_METHOD_CCW_DIAG,
+ REIPL_METHOD_CCW_VM,
+ REIPL_METHOD_FCP_RO_DIAG,
+ REIPL_METHOD_FCP_RW_DIAG,
+ REIPL_METHOD_FCP_RO_VM,
+ REIPL_METHOD_FCP_DUMP,
+ REIPL_METHOD_NSS,
+ REIPL_METHOD_DEFAULT,
+};
+
+enum dump_method {
+ DUMP_METHOD_NONE,
+ DUMP_METHOD_CCW_CIO,
+ DUMP_METHOD_CCW_DIAG,
+ DUMP_METHOD_CCW_VM,
+ DUMP_METHOD_FCP_DIAG,
};
enum shutdown_action {
static int reipl_capabilities = IPL_TYPE_UNKNOWN;
static enum ipl_type reipl_type = IPL_TYPE_UNKNOWN;
-static enum ipl_method reipl_method = IPL_METHOD_NONE;
+static enum ipl_method reipl_method = REIPL_METHOD_DEFAULT;
static struct ipl_parameter_block *reipl_block_fcp;
static struct ipl_parameter_block *reipl_block_ccw;
static char reipl_nss_name[NSS_NAME_SIZE + 1];
-static int dump_capabilities = IPL_TYPE_NONE;
-static enum ipl_type dump_type = IPL_TYPE_NONE;
-static enum ipl_method dump_method = IPL_METHOD_NONE;
+static int dump_capabilities = DUMP_TYPE_NONE;
+static enum dump_type dump_type = DUMP_TYPE_NONE;
+static enum dump_method dump_method = DUMP_METHOD_NONE;
static struct ipl_parameter_block *dump_block_fcp;
static struct ipl_parameter_block *dump_block_ccw;
: "d" (subcode) : "cc", "memory");
return _rc;
}
+EXPORT_SYMBOL_GPL(diag308);
/* SYSFS */
* ipl section
*/
-static enum ipl_type ipl_get_type(void)
+static __init enum ipl_type get_ipl_type(void)
{
struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
return IPL_TYPE_UNKNOWN;
if (ipl->hdr.pbt != DIAG308_IPL_TYPE_FCP)
return IPL_TYPE_UNKNOWN;
+ if (ipl->ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP)
+ return IPL_TYPE_FCP_DUMP;
return IPL_TYPE_FCP;
}
+void __init setup_ipl_info(void)
+{
+ ipl_info.type = get_ipl_type();
+ switch (ipl_info.type) {
+ case IPL_TYPE_CCW:
+ ipl_info.data.ccw.dev_id.devno = ipl_devno;
+ ipl_info.data.ccw.dev_id.ssid = 0;
+ break;
+ case IPL_TYPE_FCP:
+ case IPL_TYPE_FCP_DUMP:
+ ipl_info.data.fcp.dev_id.devno =
+ IPL_PARMBLOCK_START->ipl_info.fcp.devno;
+ ipl_info.data.fcp.dev_id.ssid = 0;
+ ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
+ ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
+ break;
+ case IPL_TYPE_NSS:
+ strncpy(ipl_info.data.nss.name, kernel_nss_name,
+ sizeof(ipl_info.data.nss.name));
+ break;
+ case IPL_TYPE_UNKNOWN:
+ default:
+ /* We have no info to copy */
+ break;
+ }
+}
+
+struct ipl_info ipl_info;
+EXPORT_SYMBOL_GPL(ipl_info);
+
static ssize_t ipl_type_show(struct subsystem *subsys, char *page)
{
- return sprintf(page, "%s\n", ipl_type_str(ipl_get_type()));
+ return sprintf(page, "%s\n", ipl_type_str(ipl_info.type));
}
static struct subsys_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
{
struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
- switch (ipl_get_type()) {
+ switch (ipl_info.type) {
case IPL_TYPE_CCW:
return sprintf(page, "0.0.%04x\n", ipl_devno);
case IPL_TYPE_FCP:
+ case IPL_TYPE_FCP_DUMP:
return sprintf(page, "0.0.%04x\n", ipl->ipl_info.fcp.devno);
default:
return 0;
switch(type) {
case IPL_TYPE_CCW:
if (MACHINE_IS_VM)
- reipl_method = IPL_METHOD_CCW_VM;
+ reipl_method = REIPL_METHOD_CCW_VM;
else
- reipl_method = IPL_METHOD_CCW_CIO;
+ reipl_method = REIPL_METHOD_CCW_CIO;
break;
case IPL_TYPE_FCP:
if (diag308_set_works)
- reipl_method = IPL_METHOD_FCP_RW_DIAG;
+ reipl_method = REIPL_METHOD_FCP_RW_DIAG;
else if (MACHINE_IS_VM)
- reipl_method = IPL_METHOD_FCP_RO_VM;
+ reipl_method = REIPL_METHOD_FCP_RO_VM;
else
- reipl_method = IPL_METHOD_FCP_RO_DIAG;
+ reipl_method = REIPL_METHOD_FCP_RO_DIAG;
+ break;
+ case IPL_TYPE_FCP_DUMP:
+ reipl_method = REIPL_METHOD_FCP_DUMP;
break;
case IPL_TYPE_NSS:
- reipl_method = IPL_METHOD_NSS;
+ reipl_method = REIPL_METHOD_NSS;
+ break;
+ case IPL_TYPE_UNKNOWN:
+ reipl_method = REIPL_METHOD_DEFAULT;
break;
default:
- reipl_method = IPL_METHOD_NONE;
+ BUG();
}
reipl_type = type;
return 0;
/* dump type */
-static int dump_set_type(enum ipl_type type)
+static int dump_set_type(enum dump_type type)
{
if (!(dump_capabilities & type))
return -EINVAL;
switch(type) {
- case IPL_TYPE_CCW:
+ case DUMP_TYPE_CCW:
if (MACHINE_IS_VM)
- dump_method = IPL_METHOD_CCW_VM;
+ dump_method = DUMP_METHOD_CCW_VM;
else
- dump_method = IPL_METHOD_CCW_CIO;
+ dump_method = DUMP_METHOD_CCW_CIO;
break;
- case IPL_TYPE_FCP:
- dump_method = IPL_METHOD_FCP_RW_DIAG;
+ case DUMP_TYPE_FCP:
+ dump_method = DUMP_METHOD_FCP_DIAG;
break;
default:
- dump_method = IPL_METHOD_NONE;
+ dump_method = DUMP_METHOD_NONE;
}
dump_type = type;
return 0;
static ssize_t dump_type_show(struct subsystem *subsys, char *page)
{
- return sprintf(page, "%s\n", ipl_type_str(dump_type));
+ return sprintf(page, "%s\n", dump_type_str(dump_type));
}
static ssize_t dump_type_store(struct subsystem *subsys, const char *buf,
{
int rc = -EINVAL;
- if (strncmp(buf, IPL_NONE_STR, strlen(IPL_NONE_STR)) == 0)
- rc = dump_set_type(IPL_TYPE_NONE);
- else if (strncmp(buf, IPL_CCW_STR, strlen(IPL_CCW_STR)) == 0)
- rc = dump_set_type(IPL_TYPE_CCW);
- else if (strncmp(buf, IPL_FCP_STR, strlen(IPL_FCP_STR)) == 0)
- rc = dump_set_type(IPL_TYPE_FCP);
+ if (strncmp(buf, DUMP_NONE_STR, strlen(DUMP_NONE_STR)) == 0)
+ rc = dump_set_type(DUMP_TYPE_NONE);
+ else if (strncmp(buf, DUMP_CCW_STR, strlen(DUMP_CCW_STR)) == 0)
+ rc = dump_set_type(DUMP_TYPE_CCW);
+ else if (strncmp(buf, DUMP_FCP_STR, strlen(DUMP_FCP_STR)) == 0)
+ rc = dump_set_type(DUMP_TYPE_FCP);
return (rc != 0) ? rc : len;
}
char loadparm[LOADPARM_LEN + 1];
switch (reipl_method) {
- case IPL_METHOD_CCW_CIO:
+ case REIPL_METHOD_CCW_CIO:
devid.devno = reipl_block_ccw->ipl_info.ccw.devno;
- if (ipl_get_type() == IPL_TYPE_CCW && devid.devno == ipl_devno)
+ if (ipl_info.type == IPL_TYPE_CCW && devid.devno == ipl_devno)
diag308(DIAG308_IPL, NULL);
devid.ssid = 0;
reipl_ccw_dev(&devid);
break;
- case IPL_METHOD_CCW_VM:
+ case REIPL_METHOD_CCW_VM:
reipl_get_ascii_loadparm(loadparm);
if (strlen(loadparm) == 0)
sprintf(buf, "IPL %X",
reipl_block_ccw->ipl_info.ccw.devno, loadparm);
__cpcmd(buf, NULL, 0, NULL);
break;
- case IPL_METHOD_CCW_DIAG:
+ case REIPL_METHOD_CCW_DIAG:
diag308(DIAG308_SET, reipl_block_ccw);
diag308(DIAG308_IPL, NULL);
break;
- case IPL_METHOD_FCP_RW_DIAG:
+ case REIPL_METHOD_FCP_RW_DIAG:
diag308(DIAG308_SET, reipl_block_fcp);
diag308(DIAG308_IPL, NULL);
break;
- case IPL_METHOD_FCP_RO_DIAG:
+ case REIPL_METHOD_FCP_RO_DIAG:
diag308(DIAG308_IPL, NULL);
break;
- case IPL_METHOD_FCP_RO_VM:
+ case REIPL_METHOD_FCP_RO_VM:
__cpcmd("IPL", NULL, 0, NULL);
break;
- case IPL_METHOD_NSS:
+ case REIPL_METHOD_NSS:
sprintf(buf, "IPL %s", reipl_nss_name);
__cpcmd(buf, NULL, 0, NULL);
break;
- case IPL_METHOD_NONE:
- default:
+ case REIPL_METHOD_DEFAULT:
if (MACHINE_IS_VM)
__cpcmd("IPL", NULL, 0, NULL);
diag308(DIAG308_IPL, NULL);
break;
+ case REIPL_METHOD_FCP_DUMP:
+ default:
+ break;
}
signal_processor(smp_processor_id(), sigp_stop_and_store_status);
}
static char buf[100];
switch (dump_method) {
- case IPL_METHOD_CCW_CIO:
+ case DUMP_METHOD_CCW_CIO:
smp_send_stop();
devid.devno = dump_block_ccw->ipl_info.ccw.devno;
devid.ssid = 0;
reipl_ccw_dev(&devid);
break;
- case IPL_METHOD_CCW_VM:
+ case DUMP_METHOD_CCW_VM:
smp_send_stop();
sprintf(buf, "STORE STATUS");
__cpcmd(buf, NULL, 0, NULL);
sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
__cpcmd(buf, NULL, 0, NULL);
break;
- case IPL_METHOD_CCW_DIAG:
+ case DUMP_METHOD_CCW_DIAG:
diag308(DIAG308_SET, dump_block_ccw);
diag308(DIAG308_DUMP, NULL);
break;
- case IPL_METHOD_FCP_RW_DIAG:
+ case DUMP_METHOD_FCP_DIAG:
diag308(DIAG308_SET, dump_block_fcp);
diag308(DIAG308_DUMP, NULL);
break;
- case IPL_METHOD_NONE:
+ case DUMP_METHOD_NONE:
default:
return;
}
rc = firmware_register(&ipl_subsys);
if (rc)
return rc;
- switch (ipl_get_type()) {
+ switch (ipl_info.type) {
case IPL_TYPE_CCW:
rc = sysfs_create_group(&ipl_subsys.kset.kobj,
&ipl_ccw_attr_group);
break;
case IPL_TYPE_FCP:
+ case IPL_TYPE_FCP_DUMP:
rc = ipl_register_fcp_files();
break;
case IPL_TYPE_NSS:
/* FIXME: check for diag308_set_works when enabling diag ccw reipl */
if (!MACHINE_IS_VM)
sys_reipl_ccw_loadparm_attr.attr.mode = S_IRUGO;
- if (ipl_get_type() == IPL_TYPE_CCW)
+ if (ipl_info.type == IPL_TYPE_CCW)
reipl_block_ccw->ipl_info.ccw.devno = ipl_devno;
reipl_capabilities |= IPL_TYPE_CCW;
return 0;
{
int rc;
- if ((!diag308_set_works) && (ipl_get_type() != IPL_TYPE_FCP))
+ if ((!diag308_set_works) && (ipl_info.type != IPL_TYPE_FCP))
return 0;
- if ((!diag308_set_works) && (ipl_get_type() == IPL_TYPE_FCP))
+ if ((!diag308_set_works) && (ipl_info.type == IPL_TYPE_FCP))
make_attrs_ro(reipl_fcp_attrs);
reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
free_page((unsigned long)reipl_block_fcp);
return rc;
}
- if (ipl_get_type() == IPL_TYPE_FCP) {
+ if (ipl_info.type == IPL_TYPE_FCP) {
memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE);
} else {
reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN;
rc = reipl_nss_init();
if (rc)
return rc;
- rc = reipl_set_type(ipl_get_type());
+ rc = reipl_set_type(ipl_info.type);
if (rc)
return rc;
return 0;
dump_block_ccw->hdr.version = IPL_PARM_BLOCK_VERSION;
dump_block_ccw->hdr.blk0_len = IPL_PARM_BLK0_CCW_LEN;
dump_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW;
- dump_capabilities |= IPL_TYPE_CCW;
+ dump_capabilities |= DUMP_TYPE_CCW;
return 0;
}
dump_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN;
dump_block_fcp->hdr.pbt = DIAG308_IPL_TYPE_FCP;
dump_block_fcp->ipl_info.fcp.opt = DIAG308_IPL_OPT_DUMP;
- dump_capabilities |= IPL_TYPE_FCP;
+ dump_capabilities |= DUMP_TYPE_FCP;
return 0;
}
rc = dump_fcp_init();
if (rc)
return rc;
- dump_set_type(IPL_TYPE_NONE);
+ dump_set_type(DUMP_TYPE_NONE);
return 0;
}
__initcall(s390_ipl_init);
+void __init ipl_save_parameters(void)
+{
+ struct cio_iplinfo iplinfo;
+ unsigned int *ipl_ptr;
+ void *src, *dst;
+
+ if (cio_get_iplinfo(&iplinfo))
+ return;
+
+ ipl_devno = iplinfo.devno;
+ ipl_flags |= IPL_DEVNO_VALID;
+ if (!iplinfo.is_qdio)
+ return;
+ ipl_flags |= IPL_PARMBLOCK_VALID;
+ ipl_ptr = (unsigned int *)__LC_IPL_PARMBLOCK_PTR;
+ src = (void *)(unsigned long)*ipl_ptr;
+ dst = (void *)IPL_PARMBLOCK_ORIGIN;
+ memmove(dst, src, PAGE_SIZE);
+ *ipl_ptr = IPL_PARMBLOCK_ORIGIN;
+}
+
static LIST_HEAD(rcall);
static DEFINE_MUTEX(rcall_mutex);
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/moduleloader.h>
+#include <linux/bug.h>
#if 0
#define DEBUGP printk
struct module *me)
{
vfree(me->arch.syminfo);
- return 0;
+ return module_bug_finalize(hdr, sechdrs, me);
}
void module_arch_cleanup(struct module *mod)
{
+ module_bug_cleanup(mod);
}
return 0;
}
-asmlinkage long sys_fork(struct pt_regs regs)
+asmlinkage long sys_fork(void)
{
- return do_fork(SIGCHLD, regs.gprs[15], ®s, 0, NULL, NULL);
+ struct pt_regs *regs = task_pt_regs(current);
+ return do_fork(SIGCHLD, regs->gprs[15], regs, 0, NULL, NULL);
}
-asmlinkage long sys_clone(struct pt_regs regs)
+asmlinkage long sys_clone(void)
{
- unsigned long clone_flags;
- unsigned long newsp;
+ struct pt_regs *regs = task_pt_regs(current);
+ unsigned long clone_flags;
+ unsigned long newsp;
int __user *parent_tidptr, *child_tidptr;
- clone_flags = regs.gprs[3];
- newsp = regs.orig_gpr2;
- parent_tidptr = (int __user *) regs.gprs[4];
- child_tidptr = (int __user *) regs.gprs[5];
- if (!newsp)
- newsp = regs.gprs[15];
- return do_fork(clone_flags, newsp, ®s, 0,
+ clone_flags = regs->gprs[3];
+ newsp = regs->orig_gpr2;
+ parent_tidptr = (int __user *) regs->gprs[4];
+ child_tidptr = (int __user *) regs->gprs[5];
+ if (!newsp)
+ newsp = regs->gprs[15];
+ return do_fork(clone_flags, newsp, regs, 0,
parent_tidptr, child_tidptr);
}
* do not have enough call-clobbered registers to hold all
* the information you need.
*/
-asmlinkage long sys_vfork(struct pt_regs regs)
+asmlinkage long sys_vfork(void)
{
+ struct pt_regs *regs = task_pt_regs(current);
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
- regs.gprs[15], ®s, 0, NULL, NULL);
+ regs->gprs[15], regs, 0, NULL, NULL);
+}
+
+asmlinkage void execve_tail(void)
+{
+ task_lock(current);
+ current->ptrace &= ~PT_DTRACE;
+ task_unlock(current);
+ current->thread.fp_regs.fpc = 0;
+ if (MACHINE_HAS_IEEE)
+ asm volatile("sfpc %0,%0" : : "d" (0));
}
/*
* sys_execve() executes a new program.
*/
-asmlinkage long sys_execve(struct pt_regs regs)
+asmlinkage long sys_execve(void)
{
- int error;
- char * filename;
-
- filename = getname((char __user *) regs.orig_gpr2);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
- error = do_execve(filename, (char __user * __user *) regs.gprs[3],
- (char __user * __user *) regs.gprs[4], ®s);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- current->thread.fp_regs.fpc = 0;
- if (MACHINE_HAS_IEEE)
- asm volatile("sfpc %0,%0" : : "d" (0));
+ struct pt_regs *regs = task_pt_regs(current);
+ char *filename;
+ unsigned long result;
+ int rc;
+
+ filename = getname((char __user *) regs->orig_gpr2);
+ if (IS_ERR(filename)) {
+ result = PTR_ERR(filename);
+ goto out;
}
- putname(filename);
+ rc = do_execve(filename, (char __user * __user *) regs->gprs[3],
+ (char __user * __user *) regs->gprs[4], regs);
+ if (rc) {
+ result = rc;
+ goto out_putname;
+ }
+ execve_tail();
+ result = regs->gprs[2];
+out_putname:
+ putname(filename);
out:
- return error;
+ return result;
}
-
/*
* fill in the FPU structure for a core dump.
*/
}
}
+#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
+static void __init setup_zfcpdump(unsigned int console_devno)
+{
+ static char str[64];
+
+ if (ipl_info.type != IPL_TYPE_FCP_DUMP)
+ return;
+ if (console_devno != -1)
+ sprintf(str, "cio_ignore=all,!0.0.%04x,!0.0.%04x",
+ ipl_info.data.fcp.dev_id.devno, console_devno);
+ else
+ sprintf(str, "cio_ignore=all,!0.0.%04x",
+ ipl_info.data.fcp.dev_id.devno);
+ strcat(COMMAND_LINE, str);
+ console_loglevel = 2;
+}
+#else
+static inline void setup_zfcpdump(unsigned int console_devno) {}
+#endif /* CONFIG_ZFCPDUMP */
+
#ifdef CONFIG_SMP
void (*_machine_restart)(char *command) = machine_restart_smp;
void (*_machine_halt)(void) = machine_halt_smp;
}
}
+unsigned long real_memory_size;
+EXPORT_SYMBOL_GPL(real_memory_size);
+
static void __init setup_memory_end(void)
{
- unsigned long real_size, memory_size;
+ unsigned long memory_size;
unsigned long max_mem, max_phys;
int i;
- memory_size = real_size = 0;
+#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
+ if (ipl_info.type == IPL_TYPE_FCP_DUMP)
+ memory_end = ZFCPDUMP_HSA_SIZE;
+#endif
+ memory_size = 0;
max_phys = VMALLOC_END_INIT - VMALLOC_MIN_SIZE;
memory_end &= PAGE_MASK;
for (i = 0; i < MEMORY_CHUNKS; i++) {
struct mem_chunk *chunk = &memory_chunk[i];
- real_size = max(real_size, chunk->addr + chunk->size);
+ real_memory_size = max(real_memory_size,
+ chunk->addr + chunk->size);
if (chunk->addr >= max_mem) {
memset(chunk, 0, sizeof(*chunk));
continue;
parse_early_param();
+ setup_ipl_info();
setup_memory_end();
setup_addressing_mode();
setup_memory();
/* Setup default console */
conmode_default();
+
+ /* Setup zfcpdump support */
+ setup_zfcpdump(console_devno);
}
void print_cpu_info(struct cpuinfo_S390 *cpuinfo)
}
asmlinkage long
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
- struct pt_regs *regs)
+sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
{
+ struct pt_regs *regs = task_pt_regs(current);
return do_sigaltstack(uss, uoss, regs->gprs[15]);
}
return 0;
}
-asmlinkage long sys_sigreturn(struct pt_regs *regs)
+asmlinkage long sys_sigreturn(void)
{
+ struct pt_regs *regs = task_pt_regs(current);
sigframe __user *frame = (sigframe __user *)regs->gprs[15];
sigset_t set;
return 0;
}
-asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
+asmlinkage long sys_rt_sigreturn(void)
{
+ struct pt_regs *regs = task_pt_regs(current);
rt_sigframe __user *frame = (rt_sigframe __user *)regs->gprs[15];
sigset_t set;
/*
* arch/s390/kernel/smp.c
*
- * Copyright (C) IBM Corp. 1999,2006
+ * Copyright IBM Corp. 1999,2007
* Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
- * Martin Schwidefsky (schwidefsky@de.ibm.com)
- * Heiko Carstens (heiko.carstens@de.ibm.com)
+ * Martin Schwidefsky (schwidefsky@de.ibm.com)
+ * Heiko Carstens (heiko.carstens@de.ibm.com)
*
- * based on other smp stuff by
+ * based on other smp stuff by
* (c) 1995 Alan Cox, CymruNET Ltd <alan@cymru.net>
* (c) 1998 Ingo Molnar
*
#include <linux/interrupt.h>
#include <linux/cpu.h>
#include <linux/timex.h>
+#include <linux/bootmem.h>
#include <asm/ipl.h>
#include <asm/setup.h>
#include <asm/sigp.h>
#include <asm/cpcmd.h>
#include <asm/tlbflush.h>
#include <asm/timer.h>
-
-extern volatile int __cpu_logical_map[];
+#include <asm/lowcore.h>
/*
* An array with a pointer the lowcore of every CPU.
*/
-
struct _lowcore *lowcore_ptr[NR_CPUS];
+EXPORT_SYMBOL(lowcore_ptr);
cpumask_t cpu_online_map = CPU_MASK_NONE;
+EXPORT_SYMBOL(cpu_online_map);
+
cpumask_t cpu_possible_map = CPU_MASK_NONE;
+EXPORT_SYMBOL(cpu_possible_map);
static struct task_struct *current_set[NR_CPUS];
int wait;
};
-static struct call_data_struct * call_data;
+static struct call_data_struct *call_data;
/*
* 'Call function' interrupt callback
*
* Run a function on all other CPUs.
*
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler. You may call it from a bottom half.
+ * You must not call this function with disabled interrupts, from a
+ * hardware interrupt handler or from a bottom half.
*/
int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
int wait)
*
* Run a function on one processor.
*
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler. You may call it from a bottom half.
+ * You must not call this function with disabled interrupts, from a
+ * hardware interrupt handler or from a bottom half.
*/
int smp_call_function_on(void (*func) (void *info), void *info, int nonatomic,
- int wait, int cpu)
+ int wait, int cpu)
{
cpumask_t map = CPU_MASK_NONE;
static void do_send_stop(void)
{
- int cpu, rc;
+ int cpu, rc;
- /* stop all processors */
+ /* stop all processors */
for_each_online_cpu(cpu) {
if (cpu == smp_processor_id())
continue;
static void do_store_status(void)
{
- int cpu, rc;
+ int cpu, rc;
- /* store status of all processors in their lowcores (real 0) */
+ /* store status of all processors in their lowcores (real 0) */
for_each_online_cpu(cpu) {
if (cpu == smp_processor_id())
continue;
rc = signal_processor_p(
(__u32)(unsigned long) lowcore_ptr[cpu], cpu,
sigp_store_status_at_address);
- } while(rc == sigp_busy);
- }
+ } while (rc == sigp_busy);
+ }
}
static void do_wait_for_stop(void)
for_each_online_cpu(cpu) {
if (cpu == smp_processor_id())
continue;
- while(!smp_cpu_not_running(cpu))
+ while (!smp_cpu_not_running(cpu))
cpu_relax();
}
}
/* Disable all interrupts/machine checks */
__load_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK);
- /* write magic number to zero page (absolute 0) */
+ /* write magic number to zero page (absolute 0) */
lowcore_ptr[smp_processor_id()]->panic_magic = __PANIC_MAGIC;
/* stop other processors. */
/*
* Reboot, halt and power_off routines for SMP.
*/
-
-void machine_restart_smp(char * __unused)
+void machine_restart_smp(char *__unused)
{
smp_send_stop();
do_reipl();
static void do_ext_call_interrupt(__u16 code)
{
- unsigned long bits;
+ unsigned long bits;
- /*
- * handle bit signal external calls
- *
- * For the ec_schedule signal we have to do nothing. All the work
- * is done automatically when we return from the interrupt.
- */
+ /*
+ * handle bit signal external calls
+ *
+ * For the ec_schedule signal we have to do nothing. All the work
+ * is done automatically when we return from the interrupt.
+ */
bits = xchg(&S390_lowcore.ext_call_fast, 0);
- if (test_bit(ec_call_function, &bits))
+ if (test_bit(ec_call_function, &bits))
do_call_function();
}
*/
static void smp_ext_bitcall(int cpu, ec_bit_sig sig)
{
- /*
- * Set signaling bit in lowcore of target cpu and kick it
- */
+ /*
+ * Set signaling bit in lowcore of target cpu and kick it
+ */
set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast);
- while(signal_processor(cpu, sigp_emergency_signal) == sigp_busy)
+ while (signal_processor(cpu, sigp_emergency_signal) == sigp_busy)
udelay(10);
}
void smp_ptlb_all(void)
{
- on_each_cpu(smp_ptlb_callback, NULL, 0, 1);
+ on_each_cpu(smp_ptlb_callback, NULL, 0, 1);
}
EXPORT_SYMBOL(smp_ptlb_all);
#endif /* ! CONFIG_64BIT */
*/
void smp_send_reschedule(int cpu)
{
- smp_ext_bitcall(cpu, ec_schedule);
+ smp_ext_bitcall(cpu, ec_schedule);
}
/*
/*
* callback for setting/clearing control bits
*/
-static void smp_ctl_bit_callback(void *info) {
+static void smp_ctl_bit_callback(void *info)
+{
struct ec_creg_mask_parms *pp = info;
unsigned long cregs[16];
int i;
-
+
__ctl_store(cregs, 0, 15);
for (i = 0; i <= 15; i++)
cregs[i] = (cregs[i] & pp->andvals[i]) | pp->orvals[i];
parms.orvals[cr] = 1 << bit;
on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1);
}
+EXPORT_SYMBOL(smp_ctl_set_bit);
/*
* Clear a bit in a control register of all cpus
parms.andvals[cr] = ~(1L << bit);
on_each_cpu(smp_ctl_bit_callback, &parms, 0, 1);
}
+EXPORT_SYMBOL(smp_ctl_clear_bit);
+
+#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_ZFCPDUMP_MODULE)
+
+/*
+ * zfcpdump_prefix_array holds prefix registers for the following scenario:
+ * 64 bit zfcpdump kernel and 31 bit kernel which is to be dumped. We have to
+ * save its prefix registers, since they get lost, when switching from 31 bit
+ * to 64 bit.
+ */
+unsigned int zfcpdump_prefix_array[NR_CPUS + 1] \
+ __attribute__((__section__(".data")));
+
+static void __init smp_get_save_areas(void)
+{
+ unsigned int cpu, cpu_num, rc;
+ __u16 boot_cpu_addr;
+
+ if (ipl_info.type != IPL_TYPE_FCP_DUMP)
+ return;
+ boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
+ cpu_num = 1;
+ for (cpu = 0; cpu <= 65535; cpu++) {
+ if ((u16) cpu == boot_cpu_addr)
+ continue;
+ __cpu_logical_map[1] = (__u16) cpu;
+ if (signal_processor(1, sigp_sense) == sigp_not_operational)
+ continue;
+ if (cpu_num >= NR_CPUS) {
+ printk("WARNING: Registers for cpu %i are not "
+ "saved, since dump kernel was compiled with"
+ "NR_CPUS=%i!\n", cpu_num, NR_CPUS);
+ continue;
+ }
+ zfcpdump_save_areas[cpu_num] =
+ alloc_bootmem(sizeof(union save_area));
+ while (1) {
+ rc = signal_processor(1, sigp_stop_and_store_status);
+ if (rc != sigp_busy)
+ break;
+ cpu_relax();
+ }
+ memcpy(zfcpdump_save_areas[cpu_num],
+ (void *)(unsigned long) store_prefix() +
+ SAVE_AREA_BASE, SAVE_AREA_SIZE);
+#ifdef __s390x__
+ /* copy original prefix register */
+ zfcpdump_save_areas[cpu_num]->s390x.pref_reg =
+ zfcpdump_prefix_array[cpu_num];
+#endif
+ cpu_num++;
+ }
+}
+
+union save_area *zfcpdump_save_areas[NR_CPUS + 1];
+EXPORT_SYMBOL_GPL(zfcpdump_save_areas);
+
+#else
+#define smp_get_save_areas() do { } while (0)
+#endif
/*
* Lets check how many CPUs we have.
*/
-static unsigned int
-__init smp_count_cpus(void)
+static unsigned int __init smp_count_cpus(void)
{
unsigned int cpu, num_cpus;
__u16 boot_cpu_addr;
if ((__u16) cpu == boot_cpu_addr)
continue;
__cpu_logical_map[1] = (__u16) cpu;
- if (signal_processor(1, sigp_sense) ==
- sigp_not_operational)
+ if (signal_processor(1, sigp_sense) == sigp_not_operational)
continue;
num_cpus++;
}
- printk("Detected %d CPU's\n",(int) num_cpus);
+ printk("Detected %d CPU's\n", (int) num_cpus);
printk("Boot cpu address %2X\n", boot_cpu_addr);
return num_cpus;
}
/*
- * Activate a secondary processor.
+ * Activate a secondary processor.
*/
int __devinit start_secondary(void *cpuvoid)
{
- /* Setup the cpu */
- cpu_init();
+ /* Setup the cpu */
+ cpu_init();
preempt_disable();
/* Enable TOD clock interrupts on the secondary cpu. */
- init_cpu_timer();
+ init_cpu_timer();
#ifdef CONFIG_VIRT_TIMER
/* Enable cpu timer interrupts on the secondary cpu. */
- init_cpu_vtimer();
+ init_cpu_vtimer();
#endif
/* Enable pfault pseudo page faults on this cpu. */
pfault_init();
cpu_set(smp_processor_id(), cpu_online_map);
/* Switch on interrupts */
local_irq_enable();
- /* Print info about this processor */
- print_cpu_info(&S390_lowcore.cpu_data);
- /* cpu_idle will call schedule for us */
- cpu_idle();
- return 0;
+ /* Print info about this processor */
+ print_cpu_info(&S390_lowcore.cpu_data);
+ /* cpu_idle will call schedule for us */
+ cpu_idle();
+ return 0;
}
static void __init smp_create_idle(unsigned int cpu)
current_set[cpu] = p;
}
-/* Reserving and releasing of CPUs */
-
-static DEFINE_SPINLOCK(smp_reserve_lock);
-static int smp_cpu_reserved[NR_CPUS];
-
-int
-smp_get_cpu(cpumask_t cpu_mask)
-{
- unsigned long flags;
- int cpu;
-
- spin_lock_irqsave(&smp_reserve_lock, flags);
- /* Try to find an already reserved cpu. */
- for_each_cpu_mask(cpu, cpu_mask) {
- if (smp_cpu_reserved[cpu] != 0) {
- smp_cpu_reserved[cpu]++;
- /* Found one. */
- goto out;
- }
- }
- /* Reserve a new cpu from cpu_mask. */
- for_each_cpu_mask(cpu, cpu_mask) {
- if (cpu_online(cpu)) {
- smp_cpu_reserved[cpu]++;
- goto out;
- }
- }
- cpu = -ENODEV;
-out:
- spin_unlock_irqrestore(&smp_reserve_lock, flags);
- return cpu;
-}
-
-void
-smp_put_cpu(int cpu)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&smp_reserve_lock, flags);
- smp_cpu_reserved[cpu]--;
- spin_unlock_irqrestore(&smp_reserve_lock, flags);
-}
-
-static int
-cpu_stopped(int cpu)
+static int cpu_stopped(int cpu)
{
__u32 status;
/* Check for stopped state */
- if (signal_processor_ps(&status, 0, cpu, sigp_sense) == sigp_status_stored) {
+ if (signal_processor_ps(&status, 0, cpu, sigp_sense) ==
+ sigp_status_stored) {
if (status & 0x40)
return 1;
}
/* Upping and downing of CPUs */
-int
-__cpu_up(unsigned int cpu)
+int __cpu_up(unsigned int cpu)
{
struct task_struct *idle;
- struct _lowcore *cpu_lowcore;
+ struct _lowcore *cpu_lowcore;
struct stack_frame *sf;
- sigp_ccode ccode;
- int curr_cpu;
+ sigp_ccode ccode;
+ int curr_cpu;
for (curr_cpu = 0; curr_cpu <= 65535; curr_cpu++) {
__cpu_logical_map[cpu] = (__u16) curr_cpu;
ccode = signal_processor_p((__u32)(unsigned long)(lowcore_ptr[cpu]),
cpu, sigp_set_prefix);
- if (ccode){
+ if (ccode) {
printk("sigp_set_prefix failed for cpu %d "
"with condition code %d\n",
(int) cpu, (int) ccode);
}
idle = current_set[cpu];
- cpu_lowcore = lowcore_ptr[cpu];
+ cpu_lowcore = lowcore_ptr[cpu];
cpu_lowcore->kernel_stack = (unsigned long)
- task_stack_page(idle) + (THREAD_SIZE);
+ task_stack_page(idle) + THREAD_SIZE;
sf = (struct stack_frame *) (cpu_lowcore->kernel_stack
- sizeof(struct pt_regs)
- sizeof(struct stack_frame));
" stam 0,15,0(%0)"
: : "a" (&cpu_lowcore->access_regs_save_area) : "memory");
cpu_lowcore->percpu_offset = __per_cpu_offset[cpu];
- cpu_lowcore->current_task = (unsigned long) idle;
- cpu_lowcore->cpu_data.cpu_nr = cpu;
+ cpu_lowcore->current_task = (unsigned long) idle;
+ cpu_lowcore->cpu_data.cpu_nr = cpu;
eieio();
- while (signal_processor(cpu,sigp_restart) == sigp_busy)
+ while (signal_processor(cpu, sigp_restart) == sigp_busy)
udelay(10);
while (!cpu_online(cpu))
{
unsigned int phy_cpus, pos_cpus, cpu;
+ smp_get_save_areas();
phy_cpus = smp_count_cpus();
pos_cpus = min(phy_cpus + additional_cpus, (unsigned int) NR_CPUS);
}
early_param("possible_cpus", setup_possible_cpus);
-int
-__cpu_disable(void)
+int __cpu_disable(void)
{
- unsigned long flags;
struct ec_creg_mask_parms cr_parms;
int cpu = smp_processor_id();
- spin_lock_irqsave(&smp_reserve_lock, flags);
- if (smp_cpu_reserved[cpu] != 0) {
- spin_unlock_irqrestore(&smp_reserve_lock, flags);
- return -EBUSY;
- }
cpu_clear(cpu, cpu_online_map);
/* Disable pfault pseudo page faults on this cpu. */
/* disable all external interrupts */
cr_parms.orvals[0] = 0;
- cr_parms.andvals[0] = ~(1<<15 | 1<<14 | 1<<13 | 1<<12 |
- 1<<11 | 1<<10 | 1<< 6 | 1<< 4);
+ cr_parms.andvals[0] = ~(1 << 15 | 1 << 14 | 1 << 13 | 1 << 12 |
+ 1 << 11 | 1 << 10 | 1 << 6 | 1 << 4);
/* disable all I/O interrupts */
cr_parms.orvals[6] = 0;
- cr_parms.andvals[6] = ~(1<<31 | 1<<30 | 1<<29 | 1<<28 |
- 1<<27 | 1<<26 | 1<<25 | 1<<24);
+ cr_parms.andvals[6] = ~(1 << 31 | 1 << 30 | 1 << 29 | 1 << 28 |
+ 1 << 27 | 1 << 26 | 1 << 25 | 1 << 24);
/* disable most machine checks */
cr_parms.orvals[14] = 0;
- cr_parms.andvals[14] = ~(1<<28 | 1<<27 | 1<<26 | 1<<25 | 1<<24);
+ cr_parms.andvals[14] = ~(1 << 28 | 1 << 27 | 1 << 26 |
+ 1 << 25 | 1 << 24);
smp_ctl_bit_callback(&cr_parms);
- spin_unlock_irqrestore(&smp_reserve_lock, flags);
return 0;
}
-void
-__cpu_die(unsigned int cpu)
+void __cpu_die(unsigned int cpu)
{
/* Wait until target cpu is down */
while (!smp_cpu_not_running(cpu))
printk("Processor %d spun down\n", cpu);
}
-void
-cpu_die(void)
+void cpu_die(void)
{
idle_task_exit();
signal_processor(smp_processor_id(), sigp_stop);
BUG();
- for(;;);
+ for (;;);
}
#endif /* CONFIG_HOTPLUG_CPU */
{
unsigned long stack;
unsigned int cpu;
- int i;
-
- /* request the 0x1201 emergency signal external interrupt */
- if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
- panic("Couldn't request external interrupt 0x1201");
- memset(lowcore_ptr,0,sizeof(lowcore_ptr));
- /*
- * Initialize prefix pages and stacks for all possible cpus
- */
+ int i;
+
+ /* request the 0x1201 emergency signal external interrupt */
+ if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
+ panic("Couldn't request external interrupt 0x1201");
+ memset(lowcore_ptr, 0, sizeof(lowcore_ptr));
+ /*
+ * Initialize prefix pages and stacks for all possible cpus
+ */
print_cpu_info(&S390_lowcore.cpu_data);
- for_each_possible_cpu(i) {
+ for_each_possible_cpu(i) {
lowcore_ptr[i] = (struct _lowcore *)
- __get_free_pages(GFP_KERNEL|GFP_DMA,
- sizeof(void*) == 8 ? 1 : 0);
- stack = __get_free_pages(GFP_KERNEL,ASYNC_ORDER);
- if (lowcore_ptr[i] == NULL || stack == 0ULL)
+ __get_free_pages(GFP_KERNEL | GFP_DMA,
+ sizeof(void*) == 8 ? 1 : 0);
+ stack = __get_free_pages(GFP_KERNEL, ASYNC_ORDER);
+ if (!lowcore_ptr[i] || !stack)
panic("smp_boot_cpus failed to allocate memory\n");
*(lowcore_ptr[i]) = S390_lowcore;
- lowcore_ptr[i]->async_stack = stack + (ASYNC_SIZE);
- stack = __get_free_pages(GFP_KERNEL,0);
- if (stack == 0ULL)
+ lowcore_ptr[i]->async_stack = stack + ASYNC_SIZE;
+ stack = __get_free_pages(GFP_KERNEL, 0);
+ if (!stack)
panic("smp_boot_cpus failed to allocate memory\n");
- lowcore_ptr[i]->panic_stack = stack + (PAGE_SIZE);
+ lowcore_ptr[i]->panic_stack = stack + PAGE_SIZE;
#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE) {
lowcore_ptr[i]->extended_save_area_addr =
- (__u32) __get_free_pages(GFP_KERNEL,0);
- if (lowcore_ptr[i]->extended_save_area_addr == 0)
+ (__u32) __get_free_pages(GFP_KERNEL, 0);
+ if (!lowcore_ptr[i]->extended_save_area_addr)
panic("smp_boot_cpus failed to "
"allocate memory\n");
}
*/
int setup_profiling_timer(unsigned int multiplier)
{
- return 0;
+ return 0;
}
static DEFINE_PER_CPU(struct cpu, cpu_devices);
+static ssize_t show_capability(struct sys_device *dev, char *buf)
+{
+ unsigned int capability;
+ int rc;
+
+ rc = get_cpu_capability(&capability);
+ if (rc)
+ return rc;
+ return sprintf(buf, "%u\n", capability);
+}
+static SYSDEV_ATTR(capability, 0444, show_capability, NULL);
+
+static int __cpuinit smp_cpu_notify(struct notifier_block *self,
+ unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (unsigned int)(long)hcpu;
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+ struct sys_device *s = &c->sysdev;
+
+ switch (action) {
+ case CPU_ONLINE:
+ if (sysdev_create_file(s, &attr_capability))
+ return NOTIFY_BAD;
+ break;
+ case CPU_DEAD:
+ sysdev_remove_file(s, &attr_capability);
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block __cpuinitdata smp_cpu_nb = {
+ .notifier_call = smp_cpu_notify,
+};
+
static int __init topology_init(void)
{
int cpu;
- int ret;
+
+ register_cpu_notifier(&smp_cpu_nb);
for_each_possible_cpu(cpu) {
struct cpu *c = &per_cpu(cpu_devices, cpu);
+ struct sys_device *s = &c->sysdev;
c->hotpluggable = 1;
- ret = register_cpu(c, cpu);
- if (ret)
- printk(KERN_WARNING "topology_init: register_cpu %d "
- "failed (%d)\n", cpu, ret);
+ register_cpu(c, cpu);
+ if (!cpu_online(cpu))
+ continue;
+ s = &c->sysdev;
+ sysdev_create_file(s, &attr_capability);
}
return 0;
}
-
subsys_initcall(topology_init);
-
-EXPORT_SYMBOL(cpu_online_map);
-EXPORT_SYMBOL(cpu_possible_map);
-EXPORT_SYMBOL(lowcore_ptr);
-EXPORT_SYMBOL(smp_ctl_set_bit);
-EXPORT_SYMBOL(smp_ctl_clear_bit);
-EXPORT_SYMBOL(smp_get_cpu);
-EXPORT_SYMBOL(smp_put_cpu);
return -EFAULT;
return sys_fadvise64_64(a.fd, a.offset, a.len, a.advice);
}
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
- register const char *__arg1 asm("2") = filename;
- register char *const*__arg2 asm("3") = argv;
- register char *const*__arg3 asm("4") = envp;
- register long __svcres asm("2");
- asm volatile(
- "svc %b1"
- : "=d" (__svcres)
- : "i" (__NR_execve),
- "0" (__arg1),
- "d" (__arg2),
- "d" (__arg3) : "memory");
- return __svcres;
-}
NI_SYSCALL /* 0 */
SYSCALL(sys_exit,sys_exit,sys32_exit_wrapper)
-SYSCALL(sys_fork_glue,sys_fork_glue,sys_fork_glue)
+SYSCALL(sys_fork,sys_fork,sys_fork)
SYSCALL(sys_read,sys_read,sys32_read_wrapper)
SYSCALL(sys_write,sys_write,sys32_write_wrapper)
SYSCALL(sys_open,sys_open,sys32_open_wrapper) /* 5 */
SYSCALL(sys_creat,sys_creat,sys32_creat_wrapper)
SYSCALL(sys_link,sys_link,sys32_link_wrapper)
SYSCALL(sys_unlink,sys_unlink,sys32_unlink_wrapper) /* 10 */
-SYSCALL(sys_execve_glue,sys_execve_glue,sys32_execve_glue)
+SYSCALL(sys_execve,sys_execve,sys32_execve)
SYSCALL(sys_chdir,sys_chdir,sys32_chdir_wrapper)
SYSCALL(sys_time,sys_ni_syscall,sys32_time_wrapper) /* old time syscall */
SYSCALL(sys_mknod,sys_mknod,sys32_mknod_wrapper)
SYSCALL(sys_sysinfo,sys_sysinfo,compat_sys_sysinfo_wrapper)
SYSCALL(sys_ipc,sys_ipc,sys32_ipc_wrapper)
SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper)
-SYSCALL(sys_sigreturn_glue,sys_sigreturn_glue,sys32_sigreturn_glue)
-SYSCALL(sys_clone_glue,sys_clone_glue,sys32_clone_glue) /* 120 */
+SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn)
+SYSCALL(sys_clone,sys_clone,sys32_clone) /* 120 */
SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper)
SYSCALL(sys_newuname,s390x_newuname,sys32_newuname_wrapper)
NI_SYSCALL /* modify_ldt for i386 */
SYSCALL(sys_setresgid16,sys_ni_syscall,sys32_setresgid16_wrapper) /* 170 old setresgid16 syscall */
SYSCALL(sys_getresgid16,sys_ni_syscall,sys32_getresgid16_wrapper) /* old getresgid16 syscall */
SYSCALL(sys_prctl,sys_prctl,sys32_prctl_wrapper)
-SYSCALL(sys_rt_sigreturn_glue,sys_rt_sigreturn_glue,sys32_rt_sigreturn_glue)
+SYSCALL(sys_rt_sigreturn,sys_rt_sigreturn,sys32_rt_sigreturn)
SYSCALL(sys_rt_sigaction,sys_rt_sigaction,sys32_rt_sigaction_wrapper)
SYSCALL(sys_rt_sigprocmask,sys_rt_sigprocmask,sys32_rt_sigprocmask_wrapper) /* 175 */
SYSCALL(sys_rt_sigpending,sys_rt_sigpending,sys32_rt_sigpending_wrapper)
SYSCALL(sys_getcwd,sys_getcwd,sys32_getcwd_wrapper)
SYSCALL(sys_capget,sys_capget,sys32_capget_wrapper)
SYSCALL(sys_capset,sys_capset,sys32_capset_wrapper) /* 185 */
-SYSCALL(sys_sigaltstack_glue,sys_sigaltstack_glue,sys32_sigaltstack_glue)
+SYSCALL(sys_sigaltstack,sys_sigaltstack,sys32_sigaltstack)
SYSCALL(sys_sendfile,sys_sendfile64,sys32_sendfile_wrapper)
NI_SYSCALL /* streams1 */
NI_SYSCALL /* streams2 */
-SYSCALL(sys_vfork_glue,sys_vfork_glue,sys_vfork_glue) /* 190 */
+SYSCALL(sys_vfork,sys_vfork,sys_vfork) /* 190 */
SYSCALL(sys_getrlimit,sys_getrlimit,compat_sys_getrlimit_wrapper)
SYSCALL(sys_mmap2,sys_mmap2,sys32_mmap2_wrapper)
SYSCALL(sys_truncate64,sys_ni_syscall,sys32_truncate64_wrapper)
}
static void etr_reset(void);
-static void etr_init(void);
static void etr_ext_handler(__u16);
/*
#ifdef CONFIG_VIRT_TIMER
vtime_init();
#endif
- etr_init();
}
/*
static int etr_port1_uptodate;
static unsigned long etr_events;
static struct timer_list etr_timer;
-static struct tasklet_struct etr_tasklet;
static DEFINE_PER_CPU(atomic_t, etr_sync_word);
static void etr_timeout(unsigned long dummy);
-static void etr_tasklet_fn(unsigned long dummy);
+static void etr_work_fn(struct work_struct *work);
+static DECLARE_WORK(etr_work, etr_work_fn);
/*
* The etr get_clock function. It will write the current clock value
}
}
-static void etr_init(void)
+static int __init etr_init(void)
{
struct etr_aib aib;
if (test_bit(ETR_FLAG_ENOSYS, &etr_flags))
- return;
+ return 0;
/* Check if this machine has the steai instruction. */
if (etr_steai(&aib, ETR_STEAI_STEPPING_PORT) == 0)
set_bit(ETR_FLAG_STEAI, &etr_flags);
setup_timer(&etr_timer, etr_timeout, 0UL);
- tasklet_init(&etr_tasklet, etr_tasklet_fn, 0);
if (!etr_port0_online && !etr_port1_online)
set_bit(ETR_FLAG_EACCES, &etr_flags);
if (etr_port0_online) {
set_bit(ETR_EVENT_PORT0_CHANGE, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
if (etr_port1_online) {
set_bit(ETR_EVENT_PORT1_CHANGE, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
+ return 0;
}
+arch_initcall(etr_init);
+
/*
* Two sorts of ETR machine checks. The architecture reads:
* "When a machine-check niterruption occurs and if a switch-to-local or
return;
etr_disable_sync_clock(NULL);
set_bit(ETR_EVENT_SWITCH_LOCAL, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
/*
return;
etr_disable_sync_clock(NULL);
set_bit(ETR_EVENT_SYNC_CHECK, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
/*
* Both ports are not up-to-date now.
*/
set_bit(ETR_EVENT_PORT_ALERT, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
static void etr_timeout(unsigned long dummy)
{
set_bit(ETR_EVENT_UPDATE, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
/*
if (!eacr.e0 && !eacr.e1)
return eacr;
- /* Update port0 or port1 with aib stored in etr_tasklet_fn. */
+ /* Update port0 or port1 with aib stored in etr_work_fn. */
if (aib->esw.q == 0) {
/* Information for port 0 stored. */
if (eacr.p0 && !etr_port0_uptodate) {
* particular this is the only function that calls etr_update_eacr(),
* it "controls" the etr control register.
*/
-static void etr_tasklet_fn(unsigned long dummy)
+static void etr_work_fn(struct work_struct *work)
{
unsigned long long now;
struct etr_eacr eacr;
return count; /* Nothing to do. */
etr_port0_online = value;
set_bit(ETR_EVENT_PORT0_CHANGE, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
} else {
if (etr_port1_online == value)
return count; /* Nothing to do. */
etr_port1_online = value;
set_bit(ETR_EVENT_PORT1_CHANGE, &etr_events);
- tasklet_hi_schedule(&etr_tasklet);
+ schedule_work(&etr_work);
}
return count;
}
#include <linux/kallsyms.h>
#include <linux/reboot.h>
#include <linux/kprobes.h>
-
+#include <linux/bug.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/io.h>
EXPORT_SYMBOL(dump_stack);
+static inline int mask_bits(struct pt_regs *regs, unsigned long bits)
+{
+ return (regs->psw.mask & bits) / ((~bits + 1) & bits);
+}
+
void show_registers(struct pt_regs *regs)
{
- mm_segment_t old_fs;
char *mode;
- int i;
mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl";
printk("%s PSW : %p %p",
mode, (void *) regs->psw.mask,
(void *) regs->psw.addr);
print_symbol(" (%s)\n", regs->psw.addr & PSW_ADDR_INSN);
- printk("%s GPRS: " FOURLONG, mode,
+ printk(" R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x "
+ "P:%x AS:%x CC:%x PM:%x", mask_bits(regs, PSW_MASK_PER),
+ mask_bits(regs, PSW_MASK_DAT), mask_bits(regs, PSW_MASK_IO),
+ mask_bits(regs, PSW_MASK_EXT), mask_bits(regs, PSW_MASK_KEY),
+ mask_bits(regs, PSW_MASK_MCHECK), mask_bits(regs, PSW_MASK_WAIT),
+ mask_bits(regs, PSW_MASK_PSTATE), mask_bits(regs, PSW_MASK_ASC),
+ mask_bits(regs, PSW_MASK_CC), mask_bits(regs, PSW_MASK_PM));
+#ifdef CONFIG_64BIT
+ printk(" EA:%x", mask_bits(regs, PSW_BASE_BITS));
+#endif
+ printk("\n%s GPRS: " FOURLONG, mode,
regs->gprs[0], regs->gprs[1], regs->gprs[2], regs->gprs[3]);
printk(" " FOURLONG,
regs->gprs[4], regs->gprs[5], regs->gprs[6], regs->gprs[7]);
printk(" " FOURLONG,
regs->gprs[12], regs->gprs[13], regs->gprs[14], regs->gprs[15]);
-#if 0
- /* FIXME: this isn't needed any more but it changes the ksymoops
- * input. To remove or not to remove ... */
- save_access_regs(regs->acrs);
- printk("%s ACRS: %08x %08x %08x %08x\n", mode,
- regs->acrs[0], regs->acrs[1], regs->acrs[2], regs->acrs[3]);
- printk(" %08x %08x %08x %08x\n",
- regs->acrs[4], regs->acrs[5], regs->acrs[6], regs->acrs[7]);
- printk(" %08x %08x %08x %08x\n",
- regs->acrs[8], regs->acrs[9], regs->acrs[10], regs->acrs[11]);
- printk(" %08x %08x %08x %08x\n",
- regs->acrs[12], regs->acrs[13], regs->acrs[14], regs->acrs[15]);
-#endif
-
- /*
- * Print the first 20 byte of the instruction stream at the
- * time of the fault.
- */
- old_fs = get_fs();
- if (regs->psw.mask & PSW_MASK_PSTATE)
- set_fs(USER_DS);
- else
- set_fs(KERNEL_DS);
- printk("%s Code: ", mode);
- for (i = 0; i < 20; i++) {
- unsigned char c;
- if (__get_user(c, (char __user *)(regs->psw.addr + i))) {
- printk(" Bad PSW.");
- break;
- }
- printk("%02x ", c);
- }
- set_fs(old_fs);
-
- printk("\n");
+ show_code(regs);
}
/* This is called from fs/proc/array.c */
#endif
}
+int is_valid_bugaddr(unsigned long addr)
+{
+ return 1;
+}
+
static void __kprobes inline do_trap(long interruption_code, int signr,
char *str, struct pt_regs *regs,
siginfo_t *info)
fixup = search_exception_tables(regs->psw.addr & PSW_ADDR_INSN);
if (fixup)
regs->psw.addr = fixup->fixup | PSW_ADDR_AMODE;
- else
- die(str, regs, interruption_code);
+ else {
+ enum bug_trap_type btt;
+
+ btt = report_bug(regs->psw.addr & PSW_ADDR_INSN);
+ if (btt == BUG_TRAP_TYPE_WARN)
+ return;
+ die(str, regs, interruption_code);
+ }
}
}
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
+ BUG_TABLE
+
.data : { /* Data */
*(.data)
CONSTRUCTORS
*(.init.text)
_einittext = .;
}
+ /*
+ * .exit.text is discarded at runtime, not link time,
+ * to deal with references from __bug_table
+ */
+ .exit.text : { *(.exit.text) }
+
.init.data : { *(.init.data) }
. = ALIGN(256);
__setup_start = .;
/* Sections to be discarded */
/DISCARD/ : {
- *(.exit.text) *(.exit.data) *(.exitcall.exit)
+ *(.exit.data) *(.exitcall.exit)
}
/* Stabs debugging sections. */
S390_lowcore.last_update_timer = expires;
/* store expire time for this CPU timer */
- per_cpu(virt_cpu_timer, smp_processor_id()).to_expire = expires;
+ __get_cpu_var(virt_cpu_timer).to_expire = expires;
}
#else
static inline void set_vtimer(__u64 expires)
asm volatile ("SPT %0" : : "m" (S390_lowcore.last_update_timer));
/* store expire time for this CPU timer */
- per_cpu(virt_cpu_timer, smp_processor_id()).to_expire = expires;
+ __get_cpu_var(virt_cpu_timer).to_expire = expires;
}
#endif
{
struct vtimer_queue *vt_list;
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
+ vt_list = &__get_cpu_var(virt_cpu_timer);
/* CPU timer interrupt is pending, don't reprogramm it */
if (vt_list->idle & 1LL<<63)
{
struct vtimer_queue *vt_list;
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
+ vt_list = &__get_cpu_var(virt_cpu_timer);
/* nothing to do */
if (list_empty(&vt_list->list)) {
if (list_empty(cb_list))
return;
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
+ vt_list = &__get_cpu_var(virt_cpu_timer);
list_for_each_entry_safe(event, tmp, cb_list, entry) {
fn = event->function;
*/
static void do_cpu_timer_interrupt(__u16 error_code)
{
- int cpu;
__u64 next, delta;
struct vtimer_queue *vt_list;
struct vtimer_list *event, *tmp;
struct list_head cb_list;
INIT_LIST_HEAD(&cb_list);
- cpu = smp_processor_id();
- vt_list = &per_cpu(virt_cpu_timer, cpu);
+ vt_list = &__get_cpu_var(virt_cpu_timer);
/* walk timer list, fire all expired events */
spin_lock(&vt_list->lock);
/* enable cpu timer interrupts */
__ctl_set_bit(0,10);
- vt_list = &per_cpu(virt_cpu_timer, smp_processor_id());
+ vt_list = &__get_cpu_var(virt_cpu_timer);
INIT_LIST_HEAD(&vt_list->list);
spin_lock_init(&vt_list->lock);
vt_list->to_expire = 0;
EXTRA_AFLAGS := -traditional
lib-y += delay.o string.o uaccess_std.o uaccess_pt.o qrnnd.o
-lib-$(CONFIG_32BIT) += div64.o
+obj-$(CONFIG_32BIT) += div64.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o
lib-$(CONFIG_SMP) += spinlock.o
}
#endif /* MARCH_G5 */
-
-EXPORT_SYMBOL(__div64_32);
#include <linux/module.h>
#include <linux/hardirq.h>
#include <linux/kprobes.h>
+#include <linux/uaccess.h>
#include <asm/system.h>
-#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/kdebug.h>
#include <asm/s390_ext.h>
return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb);
}
-static inline int notify_page_fault(enum die_val val, const char *str,
- struct pt_regs *regs, long err, int trap, int sig)
+static int __kprobes __notify_page_fault(struct pt_regs *regs, long err)
{
- struct die_args args = {
- .regs = regs,
- .str = str,
- .err = err,
- .trapnr = trap,
- .signr = sig
- };
- return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args);
+ struct die_args args = { .str = "page fault",
+ .trapnr = 14,
+ .signr = SIGSEGV };
+ args.regs = regs;
+ args.err = err;
+ return atomic_notifier_call_chain(¬ify_page_fault_chain,
+ DIE_PAGE_FAULT, &args);
+}
+
+static inline int notify_page_fault(struct pt_regs *regs, long err)
+{
+ if (unlikely(kprobe_running()))
+ return __notify_page_fault(regs, err);
+ return NOTIFY_DONE;
}
#else
-static inline int notify_page_fault(enum die_val val, const char *str,
- struct pt_regs *regs, long err, int trap, int sig)
+static inline int notify_page_fault(struct pt_regs *regs, long err)
{
return NOTIFY_DONE;
}
force_sig_info(SIGSEGV, &si, current);
}
+static void do_no_context(struct pt_regs *regs, unsigned long error_code,
+ unsigned long address)
+{
+ const struct exception_table_entry *fixup;
+
+ /* Are we prepared to handle this kernel fault? */
+ fixup = search_exception_tables(regs->psw.addr & __FIXUP_MASK);
+ if (fixup) {
+ regs->psw.addr = fixup->fixup | PSW_ADDR_AMODE;
+ return;
+ }
+
+ /*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ */
+ if (check_space(current) == 0)
+ printk(KERN_ALERT "Unable to handle kernel pointer dereference"
+ " at virtual kernel address %p\n", (void *)address);
+ else
+ printk(KERN_ALERT "Unable to handle kernel paging request"
+ " at virtual user address %p\n", (void *)address);
+
+ die("Oops", regs, error_code);
+ do_exit(SIGKILL);
+}
+
+static void do_low_address(struct pt_regs *regs, unsigned long error_code)
+{
+ /* Low-address protection hit in kernel mode means
+ NULL pointer write access in kernel mode. */
+ if (regs->psw.mask & PSW_MASK_PSTATE) {
+ /* Low-address protection hit in user mode 'cannot happen'. */
+ die ("Low-address protection", regs, error_code);
+ do_exit(SIGKILL);
+ }
+
+ do_no_context(regs, error_code, 0);
+}
+
+/*
+ * We ran out of memory, or some other thing happened to us that made
+ * us unable to handle the page fault gracefully.
+ */
+static int do_out_of_memory(struct pt_regs *regs, unsigned long error_code,
+ unsigned long address)
+{
+ struct task_struct *tsk = current;
+ struct mm_struct *mm = tsk->mm;
+
+ up_read(&mm->mmap_sem);
+ if (is_init(tsk)) {
+ yield();
+ down_read(&mm->mmap_sem);
+ return 1;
+ }
+ printk("VM: killing process %s\n", tsk->comm);
+ if (regs->psw.mask & PSW_MASK_PSTATE)
+ do_exit(SIGKILL);
+ do_no_context(regs, error_code, address);
+ return 0;
+}
+
+static void do_sigbus(struct pt_regs *regs, unsigned long error_code,
+ unsigned long address)
+{
+ struct task_struct *tsk = current;
+ struct mm_struct *mm = tsk->mm;
+
+ up_read(&mm->mmap_sem);
+ /*
+ * Send a sigbus, regardless of whether we were in kernel
+ * or user mode.
+ */
+ tsk->thread.prot_addr = address;
+ tsk->thread.trap_no = error_code;
+ force_sig(SIGBUS, tsk);
+
+ /* Kernel mode? Handle exceptions or die */
+ if (!(regs->psw.mask & PSW_MASK_PSTATE))
+ do_no_context(regs, error_code, address);
+}
+
#ifdef CONFIG_S390_EXEC_PROTECT
extern long sys_sigreturn(struct pt_regs *regs);
extern long sys_rt_sigreturn(struct pt_regs *regs);
extern long sys32_sigreturn(struct pt_regs *regs);
extern long sys32_rt_sigreturn(struct pt_regs *regs);
-static inline void do_sigreturn(struct mm_struct *mm, struct pt_regs *regs,
- int rt)
+static int signal_return(struct mm_struct *mm, struct pt_regs *regs,
+ unsigned long address, unsigned long error_code)
{
+ u16 instruction;
+ int rc, compat;
+
+ pagefault_disable();
+ rc = __get_user(instruction, (u16 __user *) regs->psw.addr);
+ pagefault_enable();
+ if (rc)
+ return -EFAULT;
+
up_read(&mm->mmap_sem);
clear_tsk_thread_flag(current, TIF_SINGLE_STEP);
#ifdef CONFIG_COMPAT
- if (test_tsk_thread_flag(current, TIF_31BIT)) {
- if (rt)
- sys32_rt_sigreturn(regs);
- else
- sys32_sigreturn(regs);
- return;
- }
-#endif /* CONFIG_COMPAT */
- if (rt)
- sys_rt_sigreturn(regs);
+ compat = test_tsk_thread_flag(current, TIF_31BIT);
+ if (compat && instruction == 0x0a77)
+ sys32_sigreturn(regs);
+ else if (compat && instruction == 0x0aad)
+ sys32_rt_sigreturn(regs);
else
+#endif
+ if (instruction == 0x0a77)
sys_sigreturn(regs);
- return;
-}
-
-static int signal_return(struct mm_struct *mm, struct pt_regs *regs,
- unsigned long address, unsigned long error_code)
-{
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
- u16 *instruction;
- unsigned long pfn, uaddr = regs->psw.addr;
-
- spin_lock(&mm->page_table_lock);
- pgd = pgd_offset(mm, uaddr);
- if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
- goto out_fault;
- pmd = pmd_offset(pgd, uaddr);
- if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
- goto out_fault;
- pte = pte_offset_map(pmd_offset(pgd_offset(mm, uaddr), uaddr), uaddr);
- if (!pte || !pte_present(*pte))
- goto out_fault;
- pfn = pte_pfn(*pte);
- if (!pfn_valid(pfn))
- goto out_fault;
- spin_unlock(&mm->page_table_lock);
-
- instruction = (u16 *) ((pfn << PAGE_SHIFT) + (uaddr & (PAGE_SIZE-1)));
- if (*instruction == 0x0a77)
- do_sigreturn(mm, regs, 0);
- else if (*instruction == 0x0aad)
- do_sigreturn(mm, regs, 1);
+ else if (instruction == 0x0aad)
+ sys_rt_sigreturn(regs);
else {
- printk("- XXX - do_exception: task = %s, primary, NO EXEC "
- "-> SIGSEGV\n", current->comm);
- up_read(&mm->mmap_sem);
current->thread.prot_addr = address;
current->thread.trap_no = error_code;
do_sigsegv(regs, error_code, SEGV_MAPERR, address);
}
return 0;
-out_fault:
- spin_unlock(&mm->page_table_lock);
- return -EFAULT;
}
#endif /* CONFIG_S390_EXEC_PROTECT */
* 3b Region third trans. -> Not present (nullification)
*/
static inline void
-do_exception(struct pt_regs *regs, unsigned long error_code, int is_protection)
+do_exception(struct pt_regs *regs, unsigned long error_code, int write)
{
- struct task_struct *tsk;
- struct mm_struct *mm;
- struct vm_area_struct * vma;
- unsigned long address;
- const struct exception_table_entry *fixup;
- int si_code;
+ struct task_struct *tsk;
+ struct mm_struct *mm;
+ struct vm_area_struct *vma;
+ unsigned long address;
int space;
+ int si_code;
- tsk = current;
- mm = tsk->mm;
-
- if (notify_page_fault(DIE_PAGE_FAULT, "page fault", regs, error_code, 14,
- SIGSEGV) == NOTIFY_STOP)
+ if (notify_page_fault(regs, error_code) == NOTIFY_STOP)
return;
- /*
- * Check for low-address protection. This needs to be treated
- * as a special case because the translation exception code
- * field is not guaranteed to contain valid data in this case.
- */
- if (is_protection && !(S390_lowcore.trans_exc_code & 4)) {
-
- /* Low-address protection hit in kernel mode means
- NULL pointer write access in kernel mode. */
- if (!(regs->psw.mask & PSW_MASK_PSTATE)) {
- address = 0;
- space = 0;
- goto no_context;
- }
-
- /* Low-address protection hit in user mode 'cannot happen'. */
- die ("Low-address protection", regs, error_code);
- do_exit(SIGKILL);
- }
+ tsk = current;
+ mm = tsk->mm;
- /*
- * get the failing address
- * more specific the segment and page table portion of
- * the address
- */
- address = S390_lowcore.trans_exc_code & __FAIL_ADDR_MASK;
+ /* get the failing address and the affected space */
+ address = S390_lowcore.trans_exc_code & __FAIL_ADDR_MASK;
space = check_space(tsk);
/*
*/
local_irq_enable();
- down_read(&mm->mmap_sem);
+ down_read(&mm->mmap_sem);
si_code = SEGV_MAPERR;
vma = find_vma(mm, address);
return;
#endif
- if (vma->vm_start <= address)
- goto good_area;
- if (!(vma->vm_flags & VM_GROWSDOWN))
- goto bad_area;
- if (expand_stack(vma, address))
- goto bad_area;
+ if (vma->vm_start <= address)
+ goto good_area;
+ if (!(vma->vm_flags & VM_GROWSDOWN))
+ goto bad_area;
+ if (expand_stack(vma, address))
+ goto bad_area;
/*
* Ok, we have a good vm_area for this memory access, so
* we can handle it..
*/
good_area:
si_code = SEGV_ACCERR;
- if (!is_protection) {
+ if (!write) {
/* page not present, check vm flags */
if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
goto bad_area;
* make sure we exit gracefully rather than endlessly redo
* the fault.
*/
- switch (handle_mm_fault(mm, vma, address, is_protection)) {
+ switch (handle_mm_fault(mm, vma, address, write)) {
case VM_FAULT_MINOR:
tsk->min_flt++;
break;
tsk->maj_flt++;
break;
case VM_FAULT_SIGBUS:
- goto do_sigbus;
+ do_sigbus(regs, error_code, address);
+ return;
case VM_FAULT_OOM:
- goto out_of_memory;
+ if (do_out_of_memory(regs, error_code, address))
+ goto survive;
+ return;
default:
BUG();
}
* Fix it, but check if it's kernel or user first..
*/
bad_area:
- up_read(&mm->mmap_sem);
+ up_read(&mm->mmap_sem);
- /* User mode accesses just cause a SIGSEGV */
- if (regs->psw.mask & PSW_MASK_PSTATE) {
- tsk->thread.prot_addr = address;
- tsk->thread.trap_no = error_code;
+ /* User mode accesses just cause a SIGSEGV */
+ if (regs->psw.mask & PSW_MASK_PSTATE) {
+ tsk->thread.prot_addr = address;
+ tsk->thread.trap_no = error_code;
do_sigsegv(regs, error_code, si_code, address);
- return;
+ return;
}
no_context:
- /* Are we prepared to handle this kernel fault? */
- fixup = search_exception_tables(regs->psw.addr & __FIXUP_MASK);
- if (fixup) {
- regs->psw.addr = fixup->fixup | PSW_ADDR_AMODE;
- return;
- }
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
- if (space == 0)
- printk(KERN_ALERT "Unable to handle kernel pointer dereference"
- " at virtual kernel address %p\n", (void *)address);
- else
- printk(KERN_ALERT "Unable to handle kernel paging request"
- " at virtual user address %p\n", (void *)address);
-
- die("Oops", regs, error_code);
- do_exit(SIGKILL);
-
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
-*/
-out_of_memory:
- up_read(&mm->mmap_sem);
- if (is_init(tsk)) {
- yield();
- down_read(&mm->mmap_sem);
- goto survive;
- }
- printk("VM: killing process %s\n", tsk->comm);
- if (regs->psw.mask & PSW_MASK_PSTATE)
- do_exit(SIGKILL);
- goto no_context;
-
-do_sigbus:
- up_read(&mm->mmap_sem);
-
- /*
- * Send a sigbus, regardless of whether we were in kernel
- * or user mode.
- */
- tsk->thread.prot_addr = address;
- tsk->thread.trap_no = error_code;
- force_sig(SIGBUS, tsk);
-
- /* Kernel mode? Handle exceptions or die */
- if (!(regs->psw.mask & PSW_MASK_PSTATE))
- goto no_context;
+ do_no_context(regs, error_code, address);
}
void __kprobes do_protection_exception(struct pt_regs *regs,
unsigned long error_code)
{
+ /* Protection exception is supressing, decrement psw address. */
regs->psw.addr -= (error_code >> 16);
+ /*
+ * Check for low-address protection. This needs to be treated
+ * as a special case because the translation exception code
+ * field is not guaranteed to contain valid data in this case.
+ */
+ if (unlikely(!(S390_lowcore.trans_exc_code & 4))) {
+ do_low_address(regs, error_code);
+ return;
+ }
do_exception(regs, 4, 1);
}
#
lib-y = delay.o memset.o memmove.o memchr.o \
- checksum.o strcasecmp.o strlen.o div64.o udivdi3.o \
+ checksum.o strlen.o div64.o udivdi3.o \
div64-generic.o
memcpy-y := memcpy.o
+++ /dev/null
-/*
- * linux/arch/alpha/lib/strcasecmp.c
- */
-
-#include <linux/string.h>
-
-
-/* We handle nothing here except the C locale. Since this is used in
- only one place, on strings known to contain only 7 bit ASCII, this
- is ok. */
-
-int strcasecmp(const char *a, const char *b)
-{
- int ca, cb;
-
- do {
- ca = *a++ & 0xff;
- cb = *b++ & 0xff;
- if (ca >= 'A' && ca <= 'Z')
- ca += 'a' - 'A';
- if (cb >= 'A' && cb <= 'Z')
- cb += 'a' - 'A';
- } while (ca == cb && ca != '\0');
-
- return ca - cb;
-}
struct linux_ebus *ebus_chain = NULL;
/* We are together with pcic.c under CONFIG_PCI. */
-extern unsigned int pcic_pin_to_irq(unsigned int, char *name);
+extern unsigned int pcic_pin_to_irq(unsigned int, const char *name);
/*
* IRQ Blacklist
/*
*/
-int __init ebus_blacklist_irq(char *name)
+int __init ebus_blacklist_irq(const char *name)
{
struct ebus_device_irq *dp;
void __init fill_ebus_child(struct device_node *dp,
struct linux_ebus_child *dev)
{
- int *regs;
- int *irqs;
+ const int *regs;
+ const int *irqs;
int i, len;
dev->prom_node = dp;
void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_device *dev)
{
- struct linux_prom_registers *regs;
+ const struct linux_prom_registers *regs;
struct linux_ebus_child *child;
- int *irqs;
+ const int *irqs;
int i, n, len;
unsigned long baseaddr;
void __init ebus_init(void)
{
- struct linux_prom_pci_registers *regs;
+ const struct linux_prom_pci_registers *regs;
struct linux_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
int *addrc, int *sizec);
int (*map)(u32 *addr, const u32 *range,
int na, int ns, int pna);
- unsigned int (*get_flags)(u32 *addr);
+ unsigned int (*get_flags)(const u32 *addr);
};
/*
return 0;
}
-static unsigned int of_bus_default_get_flags(u32 *addr)
+static unsigned int of_bus_default_get_flags(const u32 *addr)
{
return IORESOURCE_MEM;
}
return 0;
}
-static unsigned int of_bus_pci_get_flags(u32 *addr)
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];
return of_bus_default_map(addr, range, na, ns, pna);
}
-static unsigned int of_bus_sbus_get_flags(u32 *addr)
+static unsigned int of_bus_sbus_get_flags(const u32 *addr)
{
return IORESOURCE_MEM;
}
u32 *addr,
int na, int ns, int pna)
{
- u32 *ranges;
+ const u32 *ranges;
unsigned int rlen;
int rone;
struct of_bus *bus;
int na, ns;
int index, num_reg;
- void *preg;
+ const void *preg;
if (!parent)
return;
for (index = 0; index < num_reg; index++) {
struct resource *r = &op->resource[index];
u32 addr[OF_MAX_ADDR_CELLS];
- u32 *reg = (preg + (index * ((na + ns) * 4)));
+ const u32 *reg = (preg + (index * ((na + ns) * 4)));
struct device_node *dp = op->node;
struct device_node *pp = p_op->node;
struct of_bus *pbus, *dbus;
struct device *parent)
{
struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
- struct linux_prom_irqs *intr;
+ const struct linux_prom_irqs *intr;
int len, i;
if (!op)
for (i = 0; i < op->num_irqs; i++)
op->irqs[i] = intr[i].pri;
} else {
- unsigned int *irq = of_get_property(dp, "interrupts", &len);
+ const unsigned int *irq =
+ of_get_property(dp, "interrupts", &len);
if (irq) {
op->num_irqs = len / sizeof(unsigned int);
0, 0, 1, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 0,
};
struct device_node *io_unit, *sbi = dp->parent;
- struct linux_prom_registers *regs;
+ const struct linux_prom_registers *regs;
int board, slot;
while (sbi) {
#include <asm/irq_regs.h>
-unsigned int pcic_pin_to_irq(unsigned int pin, char *name);
-
/*
* I studied different documents and many live PROMs both from 2.30
* family and 3.xx versions. I came to the amazing conclusion: there is
* pcic_pin_to_irq() is exported to ebus.c.
*/
unsigned int
-pcic_pin_to_irq(unsigned int pin, char *name)
+pcic_pin_to_irq(unsigned int pin, const char *name)
{
struct linux_pcic *pcic = &pcic0;
unsigned int irq;
*/
static DEFINE_RWLOCK(devtree_lock);
-int of_device_is_compatible(struct device_node *device, const char *compat)
+int of_device_is_compatible(const struct device_node *device,
+ const char *compat)
{
const char* cp;
int cplen, l;
- cp = (char *) of_get_property(device, "compatible", &cplen);
+ cp = of_get_property(device, "compatible", &cplen);
if (cp == NULL)
return 0;
while (cplen > 0) {
}
EXPORT_SYMBOL(of_find_compatible_node);
-struct property *of_find_property(struct device_node *np, const char *name,
+struct property *of_find_property(const struct device_node *np,
+ const char *name,
int *lenp)
{
struct property *pp;
for (pp = np->properties; pp != 0; pp = pp->next) {
- if (strcmp(pp->name, name) == 0) {
+ if (strcasecmp(pp->name, name) == 0) {
if (lenp != 0)
*lenp = pp->length;
break;
* Find a property with a given name for a given node
* and return the value.
*/
-void *of_get_property(struct device_node *np, const char *name, int *lenp)
+const void *of_get_property(const struct device_node *np, const char *name,
+ int *lenp)
{
struct property *pp = of_find_property(np,name,lenp);
return pp ? pp->value : NULL;
int of_n_addr_cells(struct device_node *np)
{
- int* ip;
+ const int* ip;
do {
if (np->parent)
np = np->parent;
int of_n_size_cells(struct device_node *np)
{
- int* ip;
+ const int* ip;
do {
if (np->parent)
np = np->parent;
while (*prevp) {
struct property *prop = *prevp;
- if (!strcmp(prop->name, name)) {
+ if (!strcasecmp(prop->name, name)) {
void *old_val = prop->value;
int ret;
static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
{
struct device_node *dp = op->node;
- char *model = of_get_property(dp, "model", NULL);
+ const char *model = of_get_property(dp, "model", NULL);
if (!model)
return -ENODEV;
SPARC64 ports; its web page is available at
<http://www.ultralinux.org/>.
+config GENERIC_TIME
+ bool
+ default y
+
+config GENERIC_CLOCKEVENTS
+ bool
+ default y
+
config 64BIT
def_bool y
bool
default y
-config TIME_INTERPOLATION
- bool
- default y
-
config ARCH_MAY_HAVE_PC_FDC
bool
default y
menu "General machine setup"
+source "kernel/time/Kconfig"
+
config SMP
bool "Symmetric multi-processing support"
---help---
config ARCH_SPARSEMEM_DEFAULT
def_bool y
+ select SPARSEMEM_STATIC
config LARGE_ALLOCS
def_bool y
static void central_ranges_init(struct linux_central *central)
{
struct device_node *dp = central->prom_node;
- void *pval;
+ const void *pval;
int len;
central->num_central_ranges = 0;
static void fhc_ranges_init(struct linux_fhc *fhc)
{
struct device_node *dp = fhc->prom_node;
- void *pval;
+ const void *pval;
int len;
fhc->num_fhc_ranges = 0;
static void probe_other_fhcs(void)
{
struct device_node *dp;
- struct linux_prom64_registers *fpregs;
+ const struct linux_prom64_registers *fpregs;
for_each_node_by_name(dp, "fhc") {
struct linux_fhc *fhc;
struct device_node *fp)
{
struct device_node *dp;
- struct linux_prom_registers cregs[3], *pr;
+ struct linux_prom_registers cregs[3];
+ const struct linux_prom_registers *pr;
int nslots, tmp, nregs;
dp = fp->child;
void central_probe(void)
{
- struct linux_prom_registers fpregs[6], *pr;
+ struct linux_prom_registers fpregs[6];
+ const struct linux_prom_registers *pr;
struct linux_fhc *fhc;
struct device_node *dp, *fp;
int err;
{
struct mctrl_info *mp = kzalloc(sizeof(*mp), GFP_KERNEL);
int portid = of_getintprop_default(dp, "portid", -1);
- struct linux_prom64_registers *regs;
- void *pval;
+ const struct linux_prom64_registers *regs;
+ const void *pval;
int len;
if (!mp)
int non_standard_regs)
{
struct of_device *op;
- int *regs;
+ const int *regs;
int i, len;
dev->prom_node = dp;
void __init ebus_init(void)
{
- struct pci_pbm_info *pbm;
struct linux_ebus_device *dev;
struct linux_ebus *ebus;
struct pci_dev *pdev;
- struct pcidev_cookie *cookie;
struct device_node *dp;
int is_rio;
int num_ebus = 0;
return;
}
- cookie = pdev->sysdata;
- dp = cookie->prom_node;
+ dp = pci_device_to_OF_node(pdev);
ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
ebus->next = NULL;
break;
}
ebus->is_rio = is_rio;
- cookie = pdev->sysdata;
- dp = cookie->prom_node;
+ dp = pci_device_to_OF_node(pdev);
continue;
}
printk("ebus%d:", num_ebus);
ebus->index = num_ebus;
ebus->prom_node = dp;
ebus->self = pdev;
- ebus->parent = pbm = cookie->pbm;
ebus->ofdev.node = dp;
ebus->ofdev.dev.parent = &pdev->dev;
if (!pdev)
break;
- cookie = pdev->sysdata;
- dp = cookie->prom_node;
+ dp = pci_device_to_OF_node(pdev);
ebus->next = ebus_alloc(sizeof(struct linux_ebus));
ebus = ebus->next;
ino, virt_irq);
}
-#ifndef CONFIG_SMP
-extern irqreturn_t timer_interrupt(int, void *);
-
-void timer_irq(int irq, struct pt_regs *regs)
-{
- unsigned long clr_mask = 1 << irq;
- unsigned long tick_mask = tick_ops->softint_mask;
- struct pt_regs *old_regs;
-
- if (get_softint() & tick_mask) {
- irq = 0;
- clr_mask = tick_mask;
- }
- clear_softint(clr_mask);
-
- old_regs = set_irq_regs(regs);
- irq_enter();
-
- kstat_this_cpu.irqs[0]++;
- timer_interrupt(irq, NULL);
-
- irq_exit();
- set_irq_regs(old_regs);
-}
-#endif
-
void handler_irq(int irq, struct pt_regs *regs)
{
struct ino_bucket *bucket;
static void map_prom_timers(void)
{
struct device_node *dp;
- unsigned int *addr;
+ const unsigned int *addr;
/* PROM timer node hangs out in the top level of device siblings... */
dp = of_find_node_by_path("/");
static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev)
{
- struct linux_prom_registers *pregs;
- unsigned long base, len;
- int prop_len;
-
- pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len);
- if (!pregs)
- return;
-
- /* Only the first one is interesting. */
- len = pregs[0].reg_size;
- base = (((unsigned long)pregs[0].which_io << 32) |
- (unsigned long)pregs[0].phys_addr);
- base += isa_dev->bus->parent->io_space.start;
-
- isa_dev->resource.start = base;
- isa_dev->resource.end = (base + len - 1UL);
- isa_dev->resource.flags = IORESOURCE_IO;
- isa_dev->resource.name = isa_dev->prom_node->name;
+ struct of_device *op = of_find_device_by_node(isa_dev->prom_node);
- request_resource(&isa_dev->bus->parent->io_space,
- &isa_dev->resource);
+ memcpy(&isa_dev->resource, &op->resource[0], sizeof(struct resource));
}
static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev)
pdev = NULL;
while ((pdev = pci_get_device(vendor, device, pdev)) != NULL) {
- struct pcidev_cookie *pdev_cookie;
- struct pci_pbm_info *pbm;
struct sparc_isa_bridge *isa_br;
struct device_node *dp;
- pdev_cookie = pdev->sysdata;
- if (!pdev_cookie) {
- printk("ISA: Warning, ISA bridge ignored due to "
- "lack of OBP data.\n");
- continue;
- }
- pbm = pdev_cookie->pbm;
- dp = pdev_cookie->prom_node;
+ dp = pci_device_to_OF_node(pdev);
isa_br = kzalloc(sizeof(*isa_br), GFP_KERNEL);
if (!isa_br) {
isa_br->next = isa_chain;
isa_chain = isa_br;
- isa_br->parent = pbm;
isa_br->self = pdev;
isa_br->index = index++;
- isa_br->prom_node = pdev_cookie->prom_node;
+ isa_br->prom_node = dp;
printk("isa%d:", isa_br->index);
int *addrc, int *sizec);
int (*map)(u32 *addr, const u32 *range,
int na, int ns, int pna);
- unsigned int (*get_flags)(u32 *addr);
+ unsigned int (*get_flags)(const u32 *addr);
};
/*
return 0;
}
-static unsigned int of_bus_default_get_flags(u32 *addr)
+static unsigned int of_bus_default_get_flags(const u32 *addr)
{
return IORESOURCE_MEM;
}
static int of_bus_pci_match(struct device_node *np)
{
if (!strcmp(np->type, "pci") || !strcmp(np->type, "pciex")) {
+ const char *model = of_get_property(np, "model", NULL);
+
+ if (model && !strcmp(model, "SUNW,simba"))
+ return 0;
+
/* Do not do PCI specific frobbing if the
* PCI bridge lacks a ranges property. We
* want to pass it through up to the next
return 0;
}
+static int of_bus_simba_match(struct device_node *np)
+{
+ const char *model = of_get_property(np, "model", NULL);
+
+ if (model && !strcmp(model, "SUNW,simba"))
+ return 1;
+ return 0;
+}
+
+static int of_bus_simba_map(u32 *addr, const u32 *range,
+ int na, int ns, int pna)
+{
+ return 0;
+}
+
static void of_bus_pci_count_cells(struct device_node *np,
int *addrc, int *sizec)
{
return 0;
}
-static unsigned int of_bus_pci_get_flags(u32 *addr)
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
{
unsigned int flags = 0;
u32 w = addr[0];
.map = of_bus_pci_map,
.get_flags = of_bus_pci_get_flags,
},
+ /* SIMBA */
+ {
+ .name = "simba",
+ .addr_prop_name = "assigned-addresses",
+ .match = of_bus_simba_match,
+ .count_cells = of_bus_pci_count_cells,
+ .map = of_bus_simba_map,
+ .get_flags = of_bus_pci_get_flags,
+ },
/* SBUS */
{
.name = "sbus",
u32 *addr,
int na, int ns, int pna)
{
- u32 *ranges;
+ const u32 *ranges;
unsigned int rlen;
int rone;
static int __init use_1to1_mapping(struct device_node *pp)
{
- char *model;
+ const char *model;
/* If this is on the PMU bus, don't try to translate it even
* if a ranges property exists.
struct of_bus *bus;
int na, ns;
int index, num_reg;
- void *preg;
+ const void *preg;
if (!parent)
return;
for (index = 0; index < num_reg; index++) {
struct resource *r = &op->resource[index];
u32 addr[OF_MAX_ADDR_CELLS];
- u32 *reg = (preg + (index * ((na + ns) * 4)));
+ const u32 *reg = (preg + (index * ((na + ns) * 4)));
struct device_node *dp = op->node;
struct device_node *pp = p_op->node;
struct of_bus *pbus, *dbus;
static struct device_node * __init
apply_interrupt_map(struct device_node *dp, struct device_node *pp,
- u32 *imap, int imlen, u32 *imask,
+ const u32 *imap, int imlen, const u32 *imask,
unsigned int *irq_p)
{
struct device_node *cp;
unsigned int irq = *irq_p;
struct of_bus *bus;
phandle handle;
- u32 *reg;
+ const u32 *reg;
int na, num_reg, i;
bus = of_match_bus(pp);
struct device_node *pp,
unsigned int irq)
{
- struct linux_prom_pci_registers *regs;
+ const struct linux_prom_pci_registers *regs;
unsigned int bus, devfn, slot, ret;
if (irq < 1 || irq > 4)
* D: 2-bit slot number, derived from PCI device number as
* (dev - 1) for bus A, or (dev - 2) for bus B
* L: 2-bit line number
- *
- * Actually, more "portable" way to calculate the funky
- * slot number is to subtract pbm->pci_first_slot from the
- * device number, and that's exactly what the pre-OF
- * sparc64 code did, but we're building this stuff generically
- * using the OBP tree, not in the PCI controller layer.
*/
if (bus & 0x80) {
/* PBM-A */
pp = dp->parent;
ip = NULL;
while (pp) {
- void *imap, *imsk;
+ const void *imap, *imsk;
int imlen;
imap = of_get_property(pp, "interrupt-map", &imlen);
struct device *parent)
{
struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL);
- unsigned int *irq;
+ const unsigned int *irq;
int len, i;
if (!op)
-/* $Id: pci.c,v 1.39 2002/01/05 01:13:43 davem Exp $
- * pci.c: UltraSparc PCI controller support.
+/* pci.c: UltraSparc PCI controller support.
*
* Copyright (C) 1997, 1998, 1999 David S. Miller (davem@redhat.com)
* Copyright (C) 1998, 1999 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
+ *
+ * OF tree based PCI bus probing taken from the PowerPC port
+ * with minor modifications, see there for credits.
*/
#include <linux/module.h>
#include <asm/ebus.h>
#include <asm/isa.h>
#include <asm/prom.h>
+#include <asm/apb.h>
+
+#include "pci_impl.h"
unsigned long pci_memspace_mask = 0xffffffffUL;
return pci_controller_scan(pci_is_controller);
}
-struct pci_iommu_ops *pci_iommu_ops;
+const struct pci_iommu_ops *pci_iommu_ops;
EXPORT_SYMBOL(pci_iommu_ops);
-extern struct pci_iommu_ops pci_sun4u_iommu_ops,
+extern const struct pci_iommu_ops pci_sun4u_iommu_ops,
pci_sun4v_iommu_ops;
/* Find each controller in the system, attach and initialize
pci_controller_scan(pci_controller_init);
}
+static unsigned long pci_parse_of_flags(u32 addr0)
+{
+ unsigned long flags = 0;
+
+ if (addr0 & 0x02000000) {
+ flags = IORESOURCE_MEM | PCI_BASE_ADDRESS_SPACE_MEMORY;
+ flags |= (addr0 >> 22) & PCI_BASE_ADDRESS_MEM_TYPE_64;
+ flags |= (addr0 >> 28) & PCI_BASE_ADDRESS_MEM_TYPE_1M;
+ if (addr0 & 0x40000000)
+ flags |= IORESOURCE_PREFETCH
+ | PCI_BASE_ADDRESS_MEM_PREFETCH;
+ } else if (addr0 & 0x01000000)
+ flags = IORESOURCE_IO | PCI_BASE_ADDRESS_SPACE_IO;
+ return flags;
+}
+
+/* The of_device layer has translated all of the assigned-address properties
+ * into physical address resources, we only have to figure out the register
+ * mapping.
+ */
+static void pci_parse_of_addrs(struct of_device *op,
+ struct device_node *node,
+ struct pci_dev *dev)
+{
+ struct resource *op_res;
+ const u32 *addrs;
+ int proplen;
+
+ addrs = of_get_property(node, "assigned-addresses", &proplen);
+ if (!addrs)
+ return;
+ printk(" parse addresses (%d bytes) @ %p\n", proplen, addrs);
+ op_res = &op->resource[0];
+ for (; proplen >= 20; proplen -= 20, addrs += 5, op_res++) {
+ struct resource *res;
+ unsigned long flags;
+ int i;
+
+ flags = pci_parse_of_flags(addrs[0]);
+ if (!flags)
+ continue;
+ i = addrs[0] & 0xff;
+ printk(" start: %lx, end: %lx, i: %x\n",
+ op_res->start, op_res->end, i);
+
+ if (PCI_BASE_ADDRESS_0 <= i && i <= PCI_BASE_ADDRESS_5) {
+ res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2];
+ } else if (i == dev->rom_base_reg) {
+ res = &dev->resource[PCI_ROM_RESOURCE];
+ flags |= IORESOURCE_READONLY | IORESOURCE_CACHEABLE;
+ } else {
+ printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i);
+ continue;
+ }
+ res->start = op_res->start;
+ res->end = op_res->end;
+ res->flags = flags;
+ res->name = pci_name(dev);
+ }
+}
+
+struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
+ struct device_node *node,
+ struct pci_bus *bus, int devfn,
+ int host_controller)
+{
+ struct dev_archdata *sd;
+ struct pci_dev *dev;
+ const char *type;
+ u32 class;
+
+ dev = kzalloc(sizeof(struct pci_dev), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ sd = &dev->dev.archdata;
+ sd->iommu = pbm->iommu;
+ sd->stc = &pbm->stc;
+ sd->host_controller = pbm;
+ sd->prom_node = node;
+ sd->op = of_find_device_by_node(node);
+ sd->msi_num = 0xffffffff;
+
+ type = of_get_property(node, "device_type", NULL);
+ if (type == NULL)
+ type = "";
+
+ printk(" create device, devfn: %x, type: %s hostcontroller(%d)\n",
+ devfn, type, host_controller);
+
+ dev->bus = bus;
+ dev->sysdata = node;
+ dev->dev.parent = bus->bridge;
+ dev->dev.bus = &pci_bus_type;
+ dev->devfn = devfn;
+ dev->multifunction = 0; /* maybe a lie? */
+
+ if (host_controller) {
+ dev->vendor = 0x108e;
+ dev->device = 0x8000;
+ dev->subsystem_vendor = 0x0000;
+ dev->subsystem_device = 0x0000;
+ dev->cfg_size = 256;
+ dev->class = PCI_CLASS_BRIDGE_HOST << 8;
+ sprintf(pci_name(dev), "%04x:%02x:%02x.%d", pci_domain_nr(bus),
+ 0x00, PCI_SLOT(devfn), PCI_FUNC(devfn));
+ } else {
+ dev->vendor = of_getintprop_default(node, "vendor-id", 0xffff);
+ dev->device = of_getintprop_default(node, "device-id", 0xffff);
+ dev->subsystem_vendor =
+ of_getintprop_default(node, "subsystem-vendor-id", 0);
+ dev->subsystem_device =
+ of_getintprop_default(node, "subsystem-id", 0);
+
+ dev->cfg_size = pci_cfg_space_size(dev);
+
+ /* We can't actually use the firmware value, we have
+ * to read what is in the register right now. One
+ * reason is that in the case of IDE interfaces the
+ * firmware can sample the value before the the IDE
+ * interface is programmed into native mode.
+ */
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &class);
+ dev->class = class >> 8;
+
+ sprintf(pci_name(dev), "%04x:%02x:%02x.%d", pci_domain_nr(bus),
+ dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn));
+ }
+ printk(" class: 0x%x device name: %s\n",
+ dev->class, pci_name(dev));
+
+ dev->current_state = 4; /* unknown power state */
+ dev->error_state = pci_channel_io_normal;
+
+ if (host_controller) {
+ dev->hdr_type = PCI_HEADER_TYPE_BRIDGE;
+ dev->rom_base_reg = PCI_ROM_ADDRESS1;
+ dev->irq = PCI_IRQ_NONE;
+ } else {
+ if (!strcmp(type, "pci") || !strcmp(type, "pciex")) {
+ /* a PCI-PCI bridge */
+ dev->hdr_type = PCI_HEADER_TYPE_BRIDGE;
+ dev->rom_base_reg = PCI_ROM_ADDRESS1;
+ } else if (!strcmp(type, "cardbus")) {
+ dev->hdr_type = PCI_HEADER_TYPE_CARDBUS;
+ } else {
+ dev->hdr_type = PCI_HEADER_TYPE_NORMAL;
+ dev->rom_base_reg = PCI_ROM_ADDRESS;
+
+ dev->irq = sd->op->irqs[0];
+ if (dev->irq == 0xffffffff)
+ dev->irq = PCI_IRQ_NONE;
+ }
+ }
+ pci_parse_of_addrs(sd->op, node, dev);
+
+ printk(" adding to system ...\n");
+
+ pci_device_add(dev, bus);
+
+ return dev;
+}
+
+static void __init apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p)
+{
+ u32 idx, first, last;
+
+ first = 8;
+ last = 0;
+ for (idx = 0; idx < 8; idx++) {
+ if ((map & (1 << idx)) != 0) {
+ if (first > idx)
+ first = idx;
+ if (last < idx)
+ last = idx;
+ }
+ }
+
+ *first_p = first;
+ *last_p = last;
+}
+
+static void __init pci_resource_adjust(struct resource *res,
+ struct resource *root)
+{
+ res->start += root->start;
+ res->end += root->start;
+}
+
+/* Cook up fake bus resources for SUNW,simba PCI bridges which lack
+ * a proper 'ranges' property.
+ */
+static void __init apb_fake_ranges(struct pci_dev *dev,
+ struct pci_bus *bus,
+ struct pci_pbm_info *pbm)
+{
+ struct resource *res;
+ u32 first, last;
+ u8 map;
+
+ pci_read_config_byte(dev, APB_IO_ADDRESS_MAP, &map);
+ apb_calc_first_last(map, &first, &last);
+ res = bus->resource[0];
+ res->start = (first << 21);
+ res->end = (last << 21) + ((1 << 21) - 1);
+ res->flags = IORESOURCE_IO;
+ pci_resource_adjust(res, &pbm->io_space);
+
+ pci_read_config_byte(dev, APB_MEM_ADDRESS_MAP, &map);
+ apb_calc_first_last(map, &first, &last);
+ res = bus->resource[1];
+ res->start = (first << 21);
+ res->end = (last << 21) + ((1 << 21) - 1);
+ res->flags = IORESOURCE_MEM;
+ pci_resource_adjust(res, &pbm->mem_space);
+}
+
+static void __init pci_of_scan_bus(struct pci_pbm_info *pbm,
+ struct device_node *node,
+ struct pci_bus *bus);
+
+#define GET_64BIT(prop, i) ((((u64) (prop)[(i)]) << 32) | (prop)[(i)+1])
+
+void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
+ struct device_node *node,
+ struct pci_dev *dev)
+{
+ struct pci_bus *bus;
+ const u32 *busrange, *ranges;
+ int len, i, simba;
+ struct resource *res;
+ unsigned int flags;
+ u64 size;
+
+ printk("of_scan_pci_bridge(%s)\n", node->full_name);
+
+ /* parse bus-range property */
+ busrange = of_get_property(node, "bus-range", &len);
+ if (busrange == NULL || len != 8) {
+ printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n",
+ node->full_name);
+ return;
+ }
+ ranges = of_get_property(node, "ranges", &len);
+ simba = 0;
+ if (ranges == NULL) {
+ const char *model = of_get_property(node, "model", NULL);
+ if (model && !strcmp(model, "SUNW,simba")) {
+ simba = 1;
+ } else {
+ printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n",
+ node->full_name);
+ return;
+ }
+ }
+
+ bus = pci_add_new_bus(dev->bus, dev, busrange[0]);
+ if (!bus) {
+ printk(KERN_ERR "Failed to create pci bus for %s\n",
+ node->full_name);
+ return;
+ }
+
+ bus->primary = dev->bus->number;
+ bus->subordinate = busrange[1];
+ bus->bridge_ctl = 0;
+
+ /* parse ranges property, or cook one up by hand for Simba */
+ /* PCI #address-cells == 3 and #size-cells == 2 always */
+ res = &dev->resource[PCI_BRIDGE_RESOURCES];
+ for (i = 0; i < PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES; ++i) {
+ res->flags = 0;
+ bus->resource[i] = res;
+ ++res;
+ }
+ if (simba) {
+ apb_fake_ranges(dev, bus, pbm);
+ goto simba_cont;
+ }
+ i = 1;
+ for (; len >= 32; len -= 32, ranges += 8) {
+ struct resource *root;
+
+ flags = pci_parse_of_flags(ranges[0]);
+ size = GET_64BIT(ranges, 6);
+ if (flags == 0 || size == 0)
+ continue;
+ if (flags & IORESOURCE_IO) {
+ res = bus->resource[0];
+ if (res->flags) {
+ printk(KERN_ERR "PCI: ignoring extra I/O range"
+ " for bridge %s\n", node->full_name);
+ continue;
+ }
+ root = &pbm->io_space;
+ } else {
+ if (i >= PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES) {
+ printk(KERN_ERR "PCI: too many memory ranges"
+ " for bridge %s\n", node->full_name);
+ continue;
+ }
+ res = bus->resource[i];
+ ++i;
+ root = &pbm->mem_space;
+ }
+
+ res->start = GET_64BIT(ranges, 1);
+ res->end = res->start + size - 1;
+ res->flags = flags;
+
+ /* Another way to implement this would be to add an of_device
+ * layer routine that can calculate a resource for a given
+ * range property value in a PCI device.
+ */
+ pci_resource_adjust(res, root);
+ }
+simba_cont:
+ sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
+ bus->number);
+ printk(" bus name: %s\n", bus->name);
+
+ pci_of_scan_bus(pbm, node, bus);
+}
+
+static void __init pci_of_scan_bus(struct pci_pbm_info *pbm,
+ struct device_node *node,
+ struct pci_bus *bus)
+{
+ struct device_node *child;
+ const u32 *reg;
+ int reglen, devfn;
+ struct pci_dev *dev;
+
+ printk("PCI: scan_bus[%s] bus no %d\n",
+ node->full_name, bus->number);
+
+ child = NULL;
+ while ((child = of_get_next_child(node, child)) != NULL) {
+ printk(" * %s\n", child->full_name);
+ reg = of_get_property(child, "reg", ®len);
+ if (reg == NULL || reglen < 20)
+ continue;
+ devfn = (reg[0] >> 8) & 0xff;
+
+ /* create a new pci_dev for this device */
+ dev = of_create_pci_dev(pbm, child, bus, devfn, 0);
+ if (!dev)
+ continue;
+ printk("PCI: dev header type: %x\n", dev->hdr_type);
+
+ if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
+ dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
+ of_scan_pci_bridge(pbm, child, dev);
+ }
+}
+
+static ssize_t
+show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * buf)
+{
+ struct pci_dev *pdev;
+ struct device_node *dp;
+
+ pdev = to_pci_dev(dev);
+ dp = pdev->dev.archdata.prom_node;
+
+ return snprintf (buf, PAGE_SIZE, "%s\n", dp->full_name);
+}
+
+static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL);
+
+static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+ struct pci_bus *child_bus;
+ int err;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ /* we don't really care if we can create this file or
+ * not, but we need to assign the result of the call
+ * or the world will fall under alien invasion and
+ * everybody will be frozen on a spaceship ready to be
+ * eaten on alpha centauri by some green and jelly
+ * humanoid.
+ */
+ err = sysfs_create_file(&dev->dev.kobj, &dev_attr_obppath.attr);
+ }
+ list_for_each_entry(child_bus, &bus->children, node)
+ pci_bus_register_of_sysfs(child_bus);
+}
+
+int pci_host_bridge_read_pci_cfg(struct pci_bus *bus_dev,
+ unsigned int devfn,
+ int where, int size,
+ u32 *value)
+{
+ static u8 fake_pci_config[] = {
+ 0x8e, 0x10, /* Vendor: 0x108e (Sun) */
+ 0x00, 0x80, /* Device: 0x8000 (PBM) */
+ 0x46, 0x01, /* Command: 0x0146 (SERR, PARITY, MASTER, MEM) */
+ 0xa0, 0x22, /* Status: 0x02a0 (DEVSEL_MED, FB2B, 66MHZ) */
+ 0x00, 0x00, 0x00, 0x06, /* Class: 0x06000000 host bridge */
+ 0x00, /* Cacheline: 0x00 */
+ 0x40, /* Latency: 0x40 */
+ 0x00, /* Header-Type: 0x00 normal */
+ };
+
+ *value = 0;
+ if (where >= 0 && where < sizeof(fake_pci_config) &&
+ (where + size) >= 0 &&
+ (where + size) < sizeof(fake_pci_config) &&
+ size <= sizeof(u32)) {
+ while (size--) {
+ *value <<= 8;
+ *value |= fake_pci_config[where + size];
+ }
+ }
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+int pci_host_bridge_write_pci_cfg(struct pci_bus *bus_dev,
+ unsigned int devfn,
+ int where, int size,
+ u32 value)
+{
+ return PCIBIOS_SUCCESSFUL;
+}
+
+struct pci_bus * __init pci_scan_one_pbm(struct pci_pbm_info *pbm)
+{
+ struct pci_controller_info *p = pbm->parent;
+ struct device_node *node = pbm->prom_node;
+ struct pci_dev *host_pdev;
+ struct pci_bus *bus;
+
+ printk("PCI: Scanning PBM %s\n", node->full_name);
+
+ /* XXX parent device? XXX */
+ bus = pci_create_bus(NULL, pbm->pci_first_busno, p->pci_ops, pbm);
+ if (!bus) {
+ printk(KERN_ERR "Failed to create bus for %s\n",
+ node->full_name);
+ return NULL;
+ }
+ bus->secondary = pbm->pci_first_busno;
+ bus->subordinate = pbm->pci_last_busno;
+
+ bus->resource[0] = &pbm->io_space;
+ bus->resource[1] = &pbm->mem_space;
+
+ /* Create the dummy host bridge and link it in. */
+ host_pdev = of_create_pci_dev(pbm, node, bus, 0x00, 1);
+ bus->self = host_pdev;
+
+ pci_of_scan_bus(pbm, node, bus);
+ pci_bus_add_devices(bus);
+ pci_bus_register_of_sysfs(bus);
+
+ return bus;
+}
+
static void __init pci_scan_each_controller_bus(void)
{
struct pci_controller_info *p;
{
}
-int pcibios_enable_device(struct pci_dev *pdev, int mask)
+int pcibios_enable_device(struct pci_dev *dev, int mask)
{
+ u16 cmd, oldcmd;
+ int i;
+
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ oldcmd = cmd;
+
+ for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+ struct resource *res = &dev->resource[i];
+
+ /* Only set up the requested stuff */
+ if (!(mask & (1<<i)))
+ continue;
+
+ if (res->flags & IORESOURCE_IO)
+ cmd |= PCI_COMMAND_IO;
+ if (res->flags & IORESOURCE_MEM)
+ cmd |= PCI_COMMAND_MEMORY;
+ }
+
+ if (cmd != oldcmd) {
+ printk(KERN_DEBUG "PCI: Enabling device: (%s), cmd %x\n",
+ pci_name(dev), cmd);
+ /* Enable the appropriate bits in the PCI command register. */
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+ }
return 0;
}
else
root = &pbm->mem_space;
- pbm->parent->resource_adjust(pdev, &zero_res, root);
+ pci_resource_adjust(&zero_res, root);
region->start = res->start - zero_res.start;
region->end = res->end - zero_res.start;
else
root = &pbm->mem_space;
- pbm->parent->resource_adjust(pdev, res, root);
+ pci_resource_adjust(res, root);
}
EXPORT_SYMBOL(pcibios_bus_to_resource);
static int __pci_mmap_make_offset_bus(struct pci_dev *pdev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state)
{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm;
+ struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
struct pci_controller_info *p;
unsigned long space_size, user_offset, user_size;
- if (!pcp)
- return -ENXIO;
- pbm = pcp->pbm;
- if (!pbm)
- return -ENXIO;
-
p = pbm->parent;
- if (p->pbms_same_domain) {
- unsigned long lowest, highest;
-
- lowest = ~0UL; highest = 0UL;
- if (mmap_state == pci_mmap_io) {
- if (p->pbm_A.io_space.flags) {
- lowest = p->pbm_A.io_space.start;
- highest = p->pbm_A.io_space.end + 1;
- }
- if (p->pbm_B.io_space.flags) {
- if (lowest > p->pbm_B.io_space.start)
- lowest = p->pbm_B.io_space.start;
- if (highest < p->pbm_B.io_space.end + 1)
- highest = p->pbm_B.io_space.end + 1;
- }
- space_size = highest - lowest;
- } else {
- if (p->pbm_A.mem_space.flags) {
- lowest = p->pbm_A.mem_space.start;
- highest = p->pbm_A.mem_space.end + 1;
- }
- if (p->pbm_B.mem_space.flags) {
- if (lowest > p->pbm_B.mem_space.start)
- lowest = p->pbm_B.mem_space.start;
- if (highest < p->pbm_B.mem_space.end + 1)
- highest = p->pbm_B.mem_space.end + 1;
- }
- space_size = highest - lowest;
- }
+ if (mmap_state == pci_mmap_io) {
+ space_size = (pbm->io_space.end -
+ pbm->io_space.start) + 1;
} else {
- if (mmap_state == pci_mmap_io) {
- space_size = (pbm->io_space.end -
- pbm->io_space.start) + 1;
- } else {
- space_size = (pbm->mem_space.end -
- pbm->mem_space.start) + 1;
- }
+ space_size = (pbm->mem_space.end -
+ pbm->mem_space.start) + 1;
}
/* Make sure the request is in range. */
(user_offset + user_size) > space_size)
return -EINVAL;
- if (p->pbms_same_domain) {
- unsigned long lowest = ~0UL;
-
- if (mmap_state == pci_mmap_io) {
- if (p->pbm_A.io_space.flags)
- lowest = p->pbm_A.io_space.start;
- if (p->pbm_B.io_space.flags &&
- lowest > p->pbm_B.io_space.start)
- lowest = p->pbm_B.io_space.start;
- } else {
- if (p->pbm_A.mem_space.flags)
- lowest = p->pbm_A.mem_space.start;
- if (p->pbm_B.mem_space.flags &&
- lowest > p->pbm_B.mem_space.start)
- lowest = p->pbm_B.mem_space.start;
- }
- vma->vm_pgoff = (lowest + user_offset) >> PAGE_SHIFT;
+ if (mmap_state == pci_mmap_io) {
+ vma->vm_pgoff = (pbm->io_space.start +
+ user_offset) >> PAGE_SHIFT;
} else {
- if (mmap_state == pci_mmap_io) {
- vma->vm_pgoff = (pbm->io_space.start +
- user_offset) >> PAGE_SHIFT;
- } else {
- vma->vm_pgoff = (pbm->mem_space.start +
- user_offset) >> PAGE_SHIFT;
- }
+ vma->vm_pgoff = (pbm->mem_space.start +
+ user_offset) >> PAGE_SHIFT;
}
return 0;
struct pci_controller_info *p = pbm->parent;
ret = p->index;
- if (p->pbms_same_domain == 0)
- ret = ((ret << 1) +
- ((pbm == &pbm->parent->pbm_B) ? 1 : 0));
+ ret = ((ret << 1) +
+ ((pbm == &pbm->parent->pbm_B) ? 1 : 0));
}
return ret;
#ifdef CONFIG_PCI_MSI
int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
+ struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
struct pci_controller_info *p = pbm->parent;
int virt_irq, err;
{
struct msi_desc *entry = get_irq_msi(virt_irq);
struct pci_dev *pdev = entry->dev;
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
+ struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
struct pci_controller_info *p = pbm->parent;
if (!pbm->msi_num || !p->setup_msi_irq)
struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
{
- struct pcidev_cookie *pc = pdev->sysdata;
-
- return pc->op->node;
+ return pdev->dev.archdata.prom_node;
}
EXPORT_SYMBOL(pci_device_to_OF_node);
-/* $Id: pci_common.c,v 1.29 2002/02/01 00:56:03 davem Exp $
- * pci_common.c: PCI controller common support.
+/* pci_common.c: PCI controller common support.
*
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
*/
#include <linux/string.h>
#include "pci_impl.h"
-/* Fix self device of BUS and hook it into BUS->self.
- * The pci_scan_bus does not do this for the host bridge.
- */
-void __init pci_fixup_host_bridge_self(struct pci_bus *pbus)
-{
- struct pci_dev *pdev;
-
- list_for_each_entry(pdev, &pbus->devices, bus_list) {
- if (pdev->class >> 8 == PCI_CLASS_BRIDGE_HOST) {
- pbus->self = pdev;
- return;
- }
- }
-
- prom_printf("PCI: Critical error, cannot find host bridge PDEV.\n");
- prom_halt();
-}
-
-/* Find the OBP PROM device tree node for a PCI device. */
-static struct device_node * __init
-find_device_prom_node(struct pci_pbm_info *pbm, struct pci_dev *pdev,
- struct device_node *bus_node,
- struct linux_prom_pci_registers **pregs,
- int *nregs)
+static void pci_register_legacy_regions(struct resource *io_res,
+ struct resource *mem_res)
{
- struct device_node *dp;
-
- *nregs = 0;
-
- /*
- * Return the PBM's PROM node in case we are it's PCI device,
- * as the PBM's reg property is different to standard PCI reg
- * properties. We would delete this device entry otherwise,
- * which confuses XFree86's device probing...
- */
- if ((pdev->bus->number == pbm->pci_bus->number) && (pdev->devfn == 0) &&
- (pdev->vendor == PCI_VENDOR_ID_SUN) &&
- (pdev->device == PCI_DEVICE_ID_SUN_PBM ||
- pdev->device == PCI_DEVICE_ID_SUN_SCHIZO ||
- pdev->device == PCI_DEVICE_ID_SUN_TOMATILLO ||
- pdev->device == PCI_DEVICE_ID_SUN_SABRE ||
- pdev->device == PCI_DEVICE_ID_SUN_HUMMINGBIRD))
- return bus_node;
-
- dp = bus_node->child;
- while (dp) {
- struct linux_prom_pci_registers *regs;
- struct property *prop;
- int len;
-
- prop = of_find_property(dp, "reg", &len);
- if (!prop)
- goto do_next_sibling;
-
- regs = prop->value;
- if (((regs[0].phys_hi >> 8) & 0xff) == pdev->devfn) {
- *pregs = regs;
- *nregs = len / sizeof(struct linux_prom_pci_registers);
- return dp;
- }
-
- do_next_sibling:
- dp = dp->sibling;
- }
-
- return NULL;
-}
+ struct resource *p;
-/* Older versions of OBP on PCI systems encode 64-bit MEM
- * space assignments incorrectly, this fixes them up. We also
- * take the opportunity here to hide other kinds of bogus
- * assignments.
- */
-static void __init fixup_obp_assignments(struct pci_dev *pdev,
- struct pcidev_cookie *pcp)
-{
- int i;
-
- if (pdev->vendor == PCI_VENDOR_ID_AL &&
- (pdev->device == PCI_DEVICE_ID_AL_M7101 ||
- pdev->device == PCI_DEVICE_ID_AL_M1533)) {
- int i;
-
- /* Zap all of the normal resources, they are
- * meaningless and generate bogus resource collision
- * messages. This is OpenBoot's ill-fated attempt to
- * represent the implicit resources that these devices
- * have.
- */
- pcp->num_prom_assignments = 0;
- for (i = 0; i < 6; i++) {
- pdev->resource[i].start =
- pdev->resource[i].end =
- pdev->resource[i].flags = 0;
- }
- pdev->resource[PCI_ROM_RESOURCE].start =
- pdev->resource[PCI_ROM_RESOURCE].end =
- pdev->resource[PCI_ROM_RESOURCE].flags = 0;
+ /* VGA Video RAM. */
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
return;
- }
-
- for (i = 0; i < pcp->num_prom_assignments; i++) {
- struct linux_prom_pci_registers *ap;
- int space;
- ap = &pcp->prom_assignments[i];
- space = ap->phys_hi >> 24;
- if ((space & 0x3) == 2 &&
- (space & 0x4) != 0) {
- ap->phys_hi &= ~(0x7 << 24);
- ap->phys_hi |= 0x3 << 24;
- }
- }
-}
-
-static ssize_t
-show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * buf)
-{
- struct pci_dev *pdev;
- struct pcidev_cookie *sysdata;
-
- pdev = to_pci_dev(dev);
- sysdata = pdev->sysdata;
-
- return snprintf (buf, PAGE_SIZE, "%s\n", sysdata->prom_node->full_name);
-}
-
-static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL);
+ p->name = "Video RAM area";
+ p->start = mem_res->start + 0xa0000UL;
+ p->end = p->start + 0x1ffffUL;
+ p->flags = IORESOURCE_BUSY;
+ request_resource(mem_res, p);
-/* Fill in the PCI device cookie sysdata for the given
- * PCI device. This cookie is the means by which one
- * can get to OBP and PCI controller specific information
- * for a PCI device.
- */
-static void __init pdev_cookie_fillin(struct pci_pbm_info *pbm,
- struct pci_dev *pdev,
- struct device_node *bus_node)
-{
- struct linux_prom_pci_registers *pregs = NULL;
- struct pcidev_cookie *pcp;
- struct device_node *dp;
- struct property *prop;
- int nregs, len, err;
-
- dp = find_device_prom_node(pbm, pdev, bus_node,
- &pregs, &nregs);
- if (!dp) {
- /* If it is not in the OBP device tree then
- * there must be a damn good reason for it.
- *
- * So what we do is delete the device from the
- * PCI device tree completely. This scenario
- * is seen, for example, on CP1500 for the
- * second EBUS/HappyMeal pair if the external
- * connector for it is not present.
- */
- pci_remove_bus_device(pdev);
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
return;
- }
-
- pcp = kzalloc(sizeof(*pcp), GFP_ATOMIC);
- if (pcp == NULL) {
- prom_printf("PCI_COOKIE: Fatal malloc error, aborting...\n");
- prom_halt();
- }
- pcp->pbm = pbm;
- pcp->prom_node = dp;
- pcp->op = of_find_device_by_node(dp);
- memcpy(pcp->prom_regs, pregs,
- nregs * sizeof(struct linux_prom_pci_registers));
- pcp->num_prom_regs = nregs;
-
- /* We can't have the pcidev_cookie assignments be just
- * direct pointers into the property value, since they
- * are potentially modified by the probing process.
- */
- prop = of_find_property(dp, "assigned-addresses", &len);
- if (!prop) {
- pcp->num_prom_assignments = 0;
- } else {
- memcpy(pcp->prom_assignments, prop->value, len);
- pcp->num_prom_assignments =
- (len / sizeof(pcp->prom_assignments[0]));
- }
-
- if (strcmp(dp->name, "ebus") == 0) {
- struct linux_prom_ebus_ranges *erng;
- int iter;
-
- /* EBUS is special... */
- prop = of_find_property(dp, "ranges", &len);
- if (!prop) {
- prom_printf("EBUS: Fatal error, no range property\n");
- prom_halt();
- }
- erng = prop->value;
- len = (len / sizeof(erng[0]));
- for (iter = 0; iter < len; iter++) {
- struct linux_prom_ebus_ranges *ep = &erng[iter];
- struct linux_prom_pci_registers *ap;
-
- ap = &pcp->prom_assignments[iter];
-
- ap->phys_hi = ep->parent_phys_hi;
- ap->phys_mid = ep->parent_phys_mid;
- ap->phys_lo = ep->parent_phys_lo;
- ap->size_hi = 0;
- ap->size_lo = ep->size;
- }
- pcp->num_prom_assignments = len;
- }
-
- fixup_obp_assignments(pdev, pcp);
-
- pdev->sysdata = pcp;
-
- /* we don't really care if we can create this file or not,
- * but we need to assign the result of the call or the world will fall
- * under alien invasion and everybody will be frozen on a spaceship
- * ready to be eaten on alpha centauri by some green and jelly humanoid.
- */
- err = sysfs_create_file(&pdev->dev.kobj, &dev_attr_obppath.attr);
-}
-
-void __init pci_fill_in_pbm_cookies(struct pci_bus *pbus,
- struct pci_pbm_info *pbm,
- struct device_node *dp)
-{
- struct pci_dev *pdev, *pdev_next;
- struct pci_bus *this_pbus, *pbus_next;
-
- /* This must be _safe because the cookie fillin
- routine can delete devices from the tree. */
- list_for_each_entry_safe(pdev, pdev_next, &pbus->devices, bus_list)
- pdev_cookie_fillin(pbm, pdev, dp);
-
- list_for_each_entry_safe(this_pbus, pbus_next, &pbus->children, node) {
- struct pcidev_cookie *pcp = this_pbus->self->sysdata;
-
- pci_fill_in_pbm_cookies(this_pbus, pbm, pcp->prom_node);
- }
-}
-static void __init bad_assignment(struct pci_dev *pdev,
- struct linux_prom_pci_registers *ap,
- struct resource *res,
- int do_prom_halt)
-{
- prom_printf("PCI: Bogus PROM assignment. BUS[%02x] DEVFN[%x]\n",
- pdev->bus->number, pdev->devfn);
- if (ap)
- prom_printf("PCI: phys[%08x:%08x:%08x] size[%08x:%08x]\n",
- ap->phys_hi, ap->phys_mid, ap->phys_lo,
- ap->size_hi, ap->size_lo);
- if (res)
- prom_printf("PCI: RES[%016lx-->%016lx:(%lx)]\n",
- res->start, res->end, res->flags);
- if (do_prom_halt)
- prom_halt();
-}
-
-static struct resource *
-__init get_root_resource(struct linux_prom_pci_registers *ap,
- struct pci_pbm_info *pbm)
-{
- int space = (ap->phys_hi >> 24) & 3;
-
- switch (space) {
- case 0:
- /* Configuration space, silently ignore it. */
- return NULL;
-
- case 1:
- /* 16-bit IO space */
- return &pbm->io_space;
-
- case 2:
- /* 32-bit MEM space */
- return &pbm->mem_space;
-
- case 3:
- /* 64-bit MEM space, these are allocated out of
- * the 32-bit mem_space range for the PBM, ie.
- * we just zero out the upper 32-bits.
- */
- return &pbm->mem_space;
-
- default:
- printk("PCI: What is resource space %x?\n", space);
- return NULL;
- };
-}
-
-static struct resource *
-__init get_device_resource(struct linux_prom_pci_registers *ap,
- struct pci_dev *pdev)
-{
- struct resource *res;
- int breg = (ap->phys_hi & 0xff);
-
- switch (breg) {
- case PCI_ROM_ADDRESS:
- /* Unfortunately I have seen several cases where
- * buggy FCODE uses a space value of '1' (I/O space)
- * in the register property for the ROM address
- * so disable this sanity check for now.
- */
-#if 0
- {
- int space = (ap->phys_hi >> 24) & 3;
-
- /* It had better be MEM space. */
- if (space != 2)
- bad_assignment(pdev, ap, NULL, 0);
- }
-#endif
- res = &pdev->resource[PCI_ROM_RESOURCE];
- break;
-
- case PCI_BASE_ADDRESS_0:
- case PCI_BASE_ADDRESS_1:
- case PCI_BASE_ADDRESS_2:
- case PCI_BASE_ADDRESS_3:
- case PCI_BASE_ADDRESS_4:
- case PCI_BASE_ADDRESS_5:
- res = &pdev->resource[(breg - PCI_BASE_ADDRESS_0) / 4];
- break;
-
- default:
- bad_assignment(pdev, ap, NULL, 0);
- res = NULL;
- break;
- };
-
- return res;
-}
-
-static void __init pdev_record_assignments(struct pci_pbm_info *pbm,
- struct pci_dev *pdev)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- int i;
-
- for (i = 0; i < pcp->num_prom_assignments; i++) {
- struct linux_prom_pci_registers *ap;
- struct resource *root, *res;
-
- /* The format of this property is specified in
- * the PCI Bus Binding to IEEE1275-1994.
- */
- ap = &pcp->prom_assignments[i];
- root = get_root_resource(ap, pbm);
- res = get_device_resource(ap, pdev);
- if (root == NULL || res == NULL ||
- res->flags == 0)
- continue;
-
- /* Ok we know which resource this PROM assignment is
- * for, sanity check it.
- */
- if ((res->start & 0xffffffffUL) != ap->phys_lo)
- bad_assignment(pdev, ap, res, 1);
-
- /* If it is a 64-bit MEM space assignment, verify that
- * the resource is too and that the upper 32-bits match.
- */
- if (((ap->phys_hi >> 24) & 3) == 3) {
- if (((res->flags & IORESOURCE_MEM) == 0) ||
- ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK)
- != PCI_BASE_ADDRESS_MEM_TYPE_64))
- bad_assignment(pdev, ap, res, 1);
- if ((res->start >> 32) != ap->phys_mid)
- bad_assignment(pdev, ap, res, 1);
-
- /* PBM cannot generate cpu initiated PIOs
- * to the full 64-bit space. Therefore the
- * upper 32-bits better be zero. If it is
- * not, just skip it and we will assign it
- * properly ourselves.
- */
- if ((res->start >> 32) != 0UL) {
- printk(KERN_ERR "PCI: OBP assigns out of range MEM address "
- "%016lx for region %ld on device %s\n",
- res->start, (res - &pdev->resource[0]), pci_name(pdev));
- continue;
- }
- }
-
- /* Adjust the resource into the physical address space
- * of this PBM.
- */
- pbm->parent->resource_adjust(pdev, res, root);
-
- if (request_resource(root, res) < 0) {
- int rnum;
-
- /* OK, there is some conflict. But this is fine
- * since we'll reassign it in the fixup pass.
- *
- * Do not print the warning for ROM resources
- * as such a conflict is quite common and
- * harmless as the ROM bar is disabled.
- */
- rnum = (res - &pdev->resource[0]);
- if (rnum != PCI_ROM_RESOURCE)
- printk(KERN_ERR "PCI: Resource collision, "
- "region %d "
- "[%016lx:%016lx] of device %s\n",
- rnum,
- res->start, res->end,
- pci_name(pdev));
- }
- }
-}
-
-void __init pci_record_assignments(struct pci_pbm_info *pbm,
- struct pci_bus *pbus)
-{
- struct pci_dev *dev;
- struct pci_bus *bus;
+ p->name = "System ROM";
+ p->start = mem_res->start + 0xf0000UL;
+ p->end = p->start + 0xffffUL;
+ p->flags = IORESOURCE_BUSY;
+ request_resource(mem_res, p);
- list_for_each_entry(dev, &pbus->devices, bus_list)
- pdev_record_assignments(pbm, dev);
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
+ return;
- list_for_each_entry(bus, &pbus->children, node)
- pci_record_assignments(pbm, bus);
+ p->name = "Video ROM";
+ p->start = mem_res->start + 0xc0000UL;
+ p->end = p->start + 0x7fffUL;
+ p->flags = IORESOURCE_BUSY;
+ request_resource(mem_res, p);
}
-/* Return non-zero if PDEV has implicit I/O resources even
- * though it may not have an I/O base address register
- * active.
- */
-static int __init has_implicit_io(struct pci_dev *pdev)
+static void pci_register_iommu_region(struct pci_pbm_info *pbm)
{
- int class = pdev->class >> 8;
+ const u32 *vdma = of_get_property(pbm->prom_node, "virtual-dma", NULL);
- if (class == PCI_CLASS_NOT_DEFINED ||
- class == PCI_CLASS_NOT_DEFINED_VGA ||
- class == PCI_CLASS_STORAGE_IDE ||
- (pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY)
- return 1;
+ if (vdma) {
+ struct resource *rp = kmalloc(sizeof(*rp), GFP_KERNEL);
- return 0;
-}
-
-static void __init pdev_assign_unassigned(struct pci_pbm_info *pbm,
- struct pci_dev *pdev)
-{
- u32 reg;
- u16 cmd;
- int i, io_seen, mem_seen;
-
- io_seen = mem_seen = 0;
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *root, *res;
- unsigned long size, min, max, align;
-
- res = &pdev->resource[i];
-
- if (res->flags & IORESOURCE_IO)
- io_seen++;
- else if (res->flags & IORESOURCE_MEM)
- mem_seen++;
-
- /* If it is already assigned or the resource does
- * not exist, there is nothing to do.
- */
- if (res->parent != NULL || res->flags == 0UL)
- continue;
-
- /* Determine the root we allocate from. */
- if (res->flags & IORESOURCE_IO) {
- root = &pbm->io_space;
- min = root->start + 0x400UL;
- max = root->end;
- } else {
- root = &pbm->mem_space;
- min = root->start;
- max = min + 0x80000000UL;
- }
-
- size = res->end - res->start;
- align = size + 1;
- if (allocate_resource(root, res, size + 1, min, max, align, NULL, NULL) < 0) {
- /* uh oh */
- prom_printf("PCI: Failed to allocate resource %d for %s\n",
- i, pci_name(pdev));
+ if (!rp) {
+ prom_printf("Cannot allocate IOMMU resource.\n");
prom_halt();
}
-
- /* Update PCI config space. */
- pbm->parent->base_address_update(pdev, i);
- }
-
- /* Special case, disable the ROM. Several devices
- * act funny (ie. do not respond to memory space writes)
- * when it is left enabled. A good example are Qlogic,ISP
- * adapters.
- */
- pci_read_config_dword(pdev, PCI_ROM_ADDRESS, ®);
- reg &= ~PCI_ROM_ADDRESS_ENABLE;
- pci_write_config_dword(pdev, PCI_ROM_ADDRESS, reg);
-
- /* If we saw I/O or MEM resources, enable appropriate
- * bits in PCI command register.
- */
- if (io_seen || mem_seen) {
- pci_read_config_word(pdev, PCI_COMMAND, &cmd);
- if (io_seen || has_implicit_io(pdev))
- cmd |= PCI_COMMAND_IO;
- if (mem_seen)
- cmd |= PCI_COMMAND_MEMORY;
- pci_write_config_word(pdev, PCI_COMMAND, cmd);
- }
-
- /* If this is a PCI bridge or an IDE controller,
- * enable bus mastering. In the former case also
- * set the cache line size correctly.
- */
- if (((pdev->class >> 8) == PCI_CLASS_BRIDGE_PCI) ||
- (((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) &&
- ((pdev->class & 0x80) != 0))) {
- pci_read_config_word(pdev, PCI_COMMAND, &cmd);
- cmd |= PCI_COMMAND_MASTER;
- pci_write_config_word(pdev, PCI_COMMAND, cmd);
-
- if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
- pci_write_config_byte(pdev,
- PCI_CACHE_LINE_SIZE,
- (64 / sizeof(u32)));
+ rp->name = "IOMMU";
+ rp->start = pbm->mem_space.start + (unsigned long) vdma[0];
+ rp->end = rp->start + (unsigned long) vdma[1] - 1UL;
+ rp->flags = IORESOURCE_BUSY;
+ request_resource(&pbm->mem_space, rp);
}
}
-void __init pci_assign_unassigned(struct pci_pbm_info *pbm,
- struct pci_bus *pbus)
+void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
{
- struct pci_dev *dev;
- struct pci_bus *bus;
-
- list_for_each_entry(dev, &pbus->devices, bus_list)
- pdev_assign_unassigned(pbm, dev);
+ const struct linux_prom_pci_ranges *pbm_ranges;
+ int i, saw_mem, saw_io;
+ int num_pbm_ranges;
- list_for_each_entry(bus, &pbus->children, node)
- pci_assign_unassigned(pbm, bus);
-}
+ saw_mem = saw_io = 0;
+ pbm_ranges = of_get_property(pbm->prom_node, "ranges", &i);
+ num_pbm_ranges = i / sizeof(*pbm_ranges);
-static void __init pdev_fixup_irq(struct pci_dev *pdev)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct of_device *op = pcp->op;
+ for (i = 0; i < num_pbm_ranges; i++) {
+ const struct linux_prom_pci_ranges *pr = &pbm_ranges[i];
+ unsigned long a;
+ u32 parent_phys_hi, parent_phys_lo;
+ int type;
- if (op->irqs[0] == 0xffffffff) {
- pdev->irq = PCI_IRQ_NONE;
- return;
- }
+ parent_phys_hi = pr->parent_phys_hi;
+ parent_phys_lo = pr->parent_phys_lo;
+ if (tlb_type == hypervisor)
+ parent_phys_hi &= 0x0fffffff;
- pdev->irq = op->irqs[0];
+ type = (pr->child_phys_hi >> 24) & 0x3;
+ a = (((unsigned long)parent_phys_hi << 32UL) |
+ ((unsigned long)parent_phys_lo << 0UL));
- pci_write_config_byte(pdev, PCI_INTERRUPT_LINE,
- pdev->irq & PCI_IRQ_INO);
-}
-
-void __init pci_fixup_irq(struct pci_pbm_info *pbm,
- struct pci_bus *pbus)
-{
- struct pci_dev *dev;
- struct pci_bus *bus;
-
- list_for_each_entry(dev, &pbus->devices, bus_list)
- pdev_fixup_irq(dev);
-
- list_for_each_entry(bus, &pbus->children, node)
- pci_fixup_irq(pbm, bus);
-}
-
-static void pdev_setup_busmastering(struct pci_dev *pdev, int is_66mhz)
-{
- u16 cmd;
- u8 hdr_type, min_gnt, ltimer;
-
- pci_read_config_word(pdev, PCI_COMMAND, &cmd);
- cmd |= PCI_COMMAND_MASTER;
- pci_write_config_word(pdev, PCI_COMMAND, cmd);
-
- /* Read it back, if the mastering bit did not
- * get set, the device does not support bus
- * mastering so we have nothing to do here.
- */
- pci_read_config_word(pdev, PCI_COMMAND, &cmd);
- if ((cmd & PCI_COMMAND_MASTER) == 0)
- return;
-
- /* Set correct cache line size, 64-byte on all
- * Sparc64 PCI systems. Note that the value is
- * measured in 32-bit words.
- */
- pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
- 64 / sizeof(u32));
-
- pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr_type);
- hdr_type &= ~0x80;
- if (hdr_type != PCI_HEADER_TYPE_NORMAL)
- return;
-
- /* If the latency timer is already programmed with a non-zero
- * value, assume whoever set it (OBP or whoever) knows what
- * they are doing.
- */
- pci_read_config_byte(pdev, PCI_LATENCY_TIMER, <imer);
- if (ltimer != 0)
- return;
-
- /* XXX Since I'm tipping off the min grant value to
- * XXX choose a suitable latency timer value, I also
- * XXX considered making use of the max latency value
- * XXX as well. Unfortunately I've seen too many bogusly
- * XXX low settings for it to the point where it lacks
- * XXX any usefulness. In one case, an ethernet card
- * XXX claimed a min grant of 10 and a max latency of 5.
- * XXX Now, if I had two such cards on the same bus I
- * XXX could not set the desired burst period (calculated
- * XXX from min grant) without violating the max latency
- * XXX bound. Duh...
- * XXX
- * XXX I blame dumb PC bios implementors for stuff like
- * XXX this, most of them don't even try to do something
- * XXX sensible with latency timer values and just set some
- * XXX default value (usually 32) into every device.
- */
-
- pci_read_config_byte(pdev, PCI_MIN_GNT, &min_gnt);
-
- if (min_gnt == 0) {
- /* If no min_gnt setting then use a default
- * value.
- */
- if (is_66mhz)
- ltimer = 16;
- else
- ltimer = 32;
- } else {
- int shift_factor;
-
- if (is_66mhz)
- shift_factor = 2;
- else
- shift_factor = 3;
-
- /* Use a default value when the min_gnt value
- * is erroneously high.
- */
- if (((unsigned int) min_gnt << shift_factor) > 512 ||
- ((min_gnt << shift_factor) & 0xff) == 0) {
- ltimer = 8 << shift_factor;
- } else {
- ltimer = min_gnt << shift_factor;
- }
- }
+ switch (type) {
+ case 0:
+ /* PCI config space, 16MB */
+ pbm->config_space = a;
+ break;
- pci_write_config_byte(pdev, PCI_LATENCY_TIMER, ltimer);
-}
+ case 1:
+ /* 16-bit IO space, 16MB */
+ pbm->io_space.start = a;
+ pbm->io_space.end = a + ((16UL*1024UL*1024UL) - 1UL);
+ pbm->io_space.flags = IORESOURCE_IO;
+ saw_io = 1;
+ break;
-void pci_determine_66mhz_disposition(struct pci_pbm_info *pbm,
- struct pci_bus *pbus)
-{
- struct pci_dev *pdev;
- int all_are_66mhz;
- u16 status;
+ case 2:
+ /* 32-bit MEM space, 2GB */
+ pbm->mem_space.start = a;
+ pbm->mem_space.end = a + (0x80000000UL - 1UL);
+ pbm->mem_space.flags = IORESOURCE_MEM;
+ saw_mem = 1;
+ break;
- if (pbm->is_66mhz_capable == 0) {
- all_are_66mhz = 0;
- goto out;
- }
+ case 3:
+ /* XXX 64-bit MEM handling XXX */
- all_are_66mhz = 1;
- list_for_each_entry(pdev, &pbus->devices, bus_list) {
- pci_read_config_word(pdev, PCI_STATUS, &status);
- if (!(status & PCI_STATUS_66MHZ)) {
- all_are_66mhz = 0;
+ default:
break;
- }
+ };
}
-out:
- pbm->all_devs_66mhz = all_are_66mhz;
-
- printk("PCI%d(PBM%c): Bus running at %dMHz\n",
- pbm->parent->index,
- (pbm == &pbm->parent->pbm_A) ? 'A' : 'B',
- (all_are_66mhz ? 66 : 33));
-}
-
-void pci_setup_busmastering(struct pci_pbm_info *pbm,
- struct pci_bus *pbus)
-{
- struct pci_dev *dev;
- struct pci_bus *bus;
- int is_66mhz;
-
- is_66mhz = pbm->is_66mhz_capable && pbm->all_devs_66mhz;
-
- list_for_each_entry(dev, &pbus->devices, bus_list)
- pdev_setup_busmastering(dev, is_66mhz);
-
- list_for_each_entry(bus, &pbus->children, node)
- pci_setup_busmastering(pbm, bus);
-}
-
-void pci_register_legacy_regions(struct resource *io_res,
- struct resource *mem_res)
-{
- struct resource *p;
-
- /* VGA Video RAM. */
- p = kzalloc(sizeof(*p), GFP_KERNEL);
- if (!p)
- return;
- p->name = "Video RAM area";
- p->start = mem_res->start + 0xa0000UL;
- p->end = p->start + 0x1ffffUL;
- p->flags = IORESOURCE_BUSY;
- request_resource(mem_res, p);
+ if (!saw_io || !saw_mem) {
+ prom_printf("%s: Fatal error, missing %s PBM range.\n",
+ pbm->name,
+ (!saw_io ? "IO" : "MEM"));
+ prom_halt();
+ }
- p = kzalloc(sizeof(*p), GFP_KERNEL);
- if (!p)
- return;
+ printk("%s: PCI IO[%lx] MEM[%lx]\n",
+ pbm->name,
+ pbm->io_space.start,
+ pbm->mem_space.start);
- p->name = "System ROM";
- p->start = mem_res->start + 0xf0000UL;
- p->end = p->start + 0xffffUL;
- p->flags = IORESOURCE_BUSY;
- request_resource(mem_res, p);
+ pbm->io_space.name = pbm->mem_space.name = pbm->name;
- p = kzalloc(sizeof(*p), GFP_KERNEL);
- if (!p)
- return;
+ request_resource(&ioport_resource, &pbm->io_space);
+ request_resource(&iomem_resource, &pbm->mem_space);
- p->name = "Video ROM";
- p->start = mem_res->start + 0xc0000UL;
- p->end = p->start + 0x7fffUL;
- p->flags = IORESOURCE_BUSY;
- request_resource(mem_res, p);
+ pci_register_legacy_regions(&pbm->io_space,
+ &pbm->mem_space);
+ pci_register_iommu_region(pbm);
}
/* Generic helper routines for PCI error reporting. */
-/* $Id: pci_impl.h,v 1.9 2001/06/13 06:34:30 davem Exp $
- * pci_impl.h: Helper definitions for PCI controller support.
+/* pci_impl.h: Helper definitions for PCI controller support.
*
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
*/
#ifndef PCI_IMPL_H
#include <asm/prom.h>
extern struct pci_controller_info *pci_controller_root;
+extern unsigned long pci_memspace_mask;
extern int pci_num_controllers;
/* PCI bus scanning and fixup support. */
-extern void pci_fixup_host_bridge_self(struct pci_bus *pbus);
-extern void pci_fill_in_pbm_cookies(struct pci_bus *pbus,
- struct pci_pbm_info *pbm,
- struct device_node *prom_node);
-extern void pci_record_assignments(struct pci_pbm_info *pbm,
- struct pci_bus *pbus);
-extern void pci_assign_unassigned(struct pci_pbm_info *pbm,
- struct pci_bus *pbus);
-extern void pci_fixup_irq(struct pci_pbm_info *pbm,
- struct pci_bus *pbus);
-extern void pci_determine_66mhz_disposition(struct pci_pbm_info *pbm,
- struct pci_bus *pbus);
-extern void pci_setup_busmastering(struct pci_pbm_info *pbm,
- struct pci_bus *pbus);
-extern void pci_register_legacy_regions(struct resource *io_res,
- struct resource *mem_res);
+extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm);
+extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm);
+
+extern int pci_host_bridge_read_pci_cfg(struct pci_bus *bus_dev,
+ unsigned int devfn,
+ int where, int size,
+ u32 *value);
+extern int pci_host_bridge_write_pci_cfg(struct pci_bus *bus_dev,
+ unsigned int devfn,
+ int where, int size,
+ u32 value);
/* Error reporting support. */
extern void pci_scan_for_target_abort(struct pci_controller_info *, struct pci_pbm_info *, struct pci_bus *);
-/* $Id: pci_iommu.c,v 1.17 2001/12/17 07:05:09 davem Exp $
- * pci_iommu.c: UltraSparc PCI controller IOM/STC support.
+/* pci_iommu.c: UltraSparc PCI controller IOM/STC support.
*
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
* Copyright (C) 1999, 2000 Jakub Jelinek (jakub@redhat.com)
*/
"i" (ASI_PHYS_BYPASS_EC_E))
/* Must be invoked under the IOMMU lock. */
-static void __iommu_flushall(struct pci_iommu *iommu)
+static void __iommu_flushall(struct iommu *iommu)
{
unsigned long tag;
int entry;
#define IOPTE_IS_DUMMY(iommu, iopte) \
((iopte_val(*iopte) & IOPTE_PAGE) == (iommu)->dummy_page_pa)
-static inline void iopte_make_dummy(struct pci_iommu *iommu, iopte_t *iopte)
+static inline void iopte_make_dummy(struct iommu *iommu, iopte_t *iopte)
{
unsigned long val = iopte_val(*iopte);
}
/* Based largely upon the ppc64 iommu allocator. */
-static long pci_arena_alloc(struct pci_iommu *iommu, unsigned long npages)
+static long pci_arena_alloc(struct iommu *iommu, unsigned long npages)
{
- struct pci_iommu_arena *arena = &iommu->arena;
+ struct iommu_arena *arena = &iommu->arena;
unsigned long n, i, start, end, limit;
int pass;
return n;
}
-static void pci_arena_free(struct pci_iommu_arena *arena, unsigned long base, unsigned long npages)
+static void pci_arena_free(struct iommu_arena *arena, unsigned long base, unsigned long npages)
{
unsigned long i;
__clear_bit(i, arena->map);
}
-void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask)
+void pci_iommu_table_init(struct iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask)
{
unsigned long i, tsbbase, order, sz, num_tsb_entries;
iopte_make_dummy(iommu, &iommu->page_table[i]);
}
-static inline iopte_t *alloc_npages(struct pci_iommu *iommu, unsigned long npages)
+static inline iopte_t *alloc_npages(struct iommu *iommu, unsigned long npages)
{
long entry;
return iommu->page_table + entry;
}
-static inline void free_npages(struct pci_iommu *iommu, dma_addr_t base, unsigned long npages)
+static inline void free_npages(struct iommu *iommu, dma_addr_t base, unsigned long npages)
{
pci_arena_free(&iommu->arena, base >> IO_PAGE_SHIFT, npages);
}
-static int iommu_alloc_ctx(struct pci_iommu *iommu)
+static int iommu_alloc_ctx(struct iommu *iommu)
{
int lowest = iommu->ctx_lowest_free;
int sz = IOMMU_NUM_CTXS - lowest;
return n;
}
-static inline void iommu_free_ctx(struct pci_iommu *iommu, int ctx)
+static inline void iommu_free_ctx(struct iommu *iommu, int ctx)
{
if (likely(ctx)) {
__clear_bit(ctx, iommu->ctx_bitmap);
*/
static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp, gfp_t gfp)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, first_page;
void *ret;
return NULL;
memset((char *)first_page, 0, PAGE_SIZE << order);
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
+ iommu = pdev->dev.archdata.iommu;
spin_lock_irqsave(&iommu->lock, flags);
iopte = alloc_npages(iommu, size >> IO_PAGE_SHIFT);
/* Free and unmap a consistent DMA translation. */
static void pci_4u_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_t dvma)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, npages;
npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
+ iommu = pdev->dev.archdata.iommu;
iopte = iommu->page_table +
((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
*/
static dma_addr_t pci_4u_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
- struct pci_strbuf *strbuf;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
iopte_t *base;
unsigned long flags, npages, oaddr;
unsigned long i, base_paddr, ctx;
u32 bus_addr, ret;
unsigned long iopte_protection;
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- strbuf = &pcp->pbm->stc;
+ iommu = pdev->dev.archdata.iommu;
+ strbuf = pdev->dev.archdata.stc;
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
return PCI_DMA_ERROR_CODE;
}
-static void pci_strbuf_flush(struct pci_strbuf *strbuf, struct pci_iommu *iommu, u32 vaddr, unsigned long ctx, unsigned long npages, int direction)
+static void pci_strbuf_flush(struct strbuf *strbuf, struct iommu *iommu, u32 vaddr, unsigned long ctx, unsigned long npages, int direction)
{
int limit;
/* Unmap a single streaming mode DMA translation. */
static void pci_4u_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
- struct pci_strbuf *strbuf;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
iopte_t *base;
unsigned long flags, npages, ctx, i;
return;
}
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- strbuf = &pcp->pbm->stc;
+ iommu = pdev->dev.archdata.iommu;
+ strbuf = pdev->dev.archdata.stc;
npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
*/
static int pci_4u_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
- struct pci_strbuf *strbuf;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
unsigned long flags, ctx, npages, iopte_protection;
iopte_t *base;
u32 dma_base;
return 1;
}
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- strbuf = &pcp->pbm->stc;
+ iommu = pdev->dev.archdata.iommu;
+ strbuf = pdev->dev.archdata.stc;
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
/* Unmap a set of streaming mode DMA translations. */
static void pci_4u_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
- struct pci_strbuf *strbuf;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
iopte_t *base;
unsigned long flags, ctx, i, npages;
u32 bus_addr;
WARN_ON(1);
}
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- strbuf = &pcp->pbm->stc;
+ iommu = pdev->dev.archdata.iommu;
+ strbuf = pdev->dev.archdata.stc;
bus_addr = sglist->dma_address & IO_PAGE_MASK;
*/
static void pci_4u_dma_sync_single_for_cpu(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
- struct pci_strbuf *strbuf;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
unsigned long flags, ctx, npages;
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- strbuf = &pcp->pbm->stc;
+ iommu = pdev->dev.archdata.iommu;
+ strbuf = pdev->dev.archdata.stc;
if (!strbuf->strbuf_enabled)
return;
*/
static void pci_4u_dma_sync_sg_for_cpu(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
- struct pci_strbuf *strbuf;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
unsigned long flags, ctx, npages, i;
u32 bus_addr;
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- strbuf = &pcp->pbm->stc;
+ iommu = pdev->dev.archdata.iommu;
+ strbuf = pdev->dev.archdata.stc;
if (!strbuf->strbuf_enabled)
return;
spin_unlock_irqrestore(&iommu->lock, flags);
}
-struct pci_iommu_ops pci_sun4u_iommu_ops = {
+const struct pci_iommu_ops pci_sun4u_iommu_ops = {
.alloc_consistent = pci_4u_alloc_consistent,
.free_consistent = pci_4u_free_consistent,
.map_single = pci_4u_map_single,
int pci_dma_supported(struct pci_dev *pdev, u64 device_mask)
{
- struct pcidev_cookie *pcp = pdev->sysdata;
u64 dma_addr_mask;
if (pdev == NULL) {
dma_addr_mask = 0xffffffff;
} else {
- struct pci_iommu *iommu = pcp->pbm->iommu;
+ struct iommu *iommu = pdev->dev.archdata.iommu;
dma_addr_mask = iommu->dma_addr_mask;
-/* $Id: pci_psycho.c,v 1.33 2002/02/01 00:58:33 davem Exp $
- * pci_psycho.c: PSYCHO/U2P specific PCI controller support.
+/* pci_psycho.c: PSYCHO/U2P specific PCI controller support.
*
- * Copyright (C) 1997, 1998, 1999 David S. Miller (davem@caipfs.rutgers.edu)
+ * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
* Copyright (C) 1998, 1999 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)
*/
u16 tmp16;
u8 tmp8;
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
+ size, value);
+
switch (size) {
case 1:
*value = 0xff;
unsigned char bus = bus_dev->number;
u32 *addr;
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
+ size, value);
addr = psycho_pci_config_mkaddr(pbm, bus, devfn, where);
if (!addr)
return PCIBIOS_SUCCESSFUL;
struct pci_pbm_info *pbm,
int is_pbm_a)
{
- struct pci_strbuf *strbuf = &pbm->stc;
+ struct strbuf *strbuf = &pbm->stc;
unsigned long regbase = p->pbm_A.controller_regs;
unsigned long err_base, tag_base, line_base;
u64 control;
unsigned long afar,
enum psycho_error_type type)
{
- struct pci_iommu *iommu = p->pbm_A.iommu;
+ struct iommu *iommu = p->pbm_A.iommu;
unsigned long iommu_tag[16];
unsigned long iommu_data[16];
unsigned long flags;
}
/* PSYCHO boot time probing and initialization. */
-static void psycho_resource_adjust(struct pci_dev *pdev,
- struct resource *res,
- struct resource *root)
-{
- res->start += root->start;
- res->end += root->start;
-}
-
-static void psycho_base_address_update(struct pci_dev *pdev, int resource)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
- struct resource *res, *root;
- u32 reg;
- int where, size, is_64bit;
-
- res = &pdev->resource[resource];
- if (resource < 6) {
- where = PCI_BASE_ADDRESS_0 + (resource * 4);
- } else if (resource == PCI_ROM_RESOURCE) {
- where = pdev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- is_64bit = 0;
- if (res->flags & IORESOURCE_IO)
- root = &pbm->io_space;
- else {
- root = &pbm->mem_space;
- if ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK)
- == PCI_BASE_ADDRESS_MEM_TYPE_64)
- is_64bit = 1;
- }
-
- size = res->end - res->start;
- pci_read_config_dword(pdev, where, ®);
- reg = ((reg & size) |
- (((u32)(res->start - root->start)) & ~size));
- if (resource == PCI_ROM_RESOURCE) {
- reg |= PCI_ROM_ADDRESS_ENABLE;
- res->flags |= IORESOURCE_ROM_ENABLE;
- }
- pci_write_config_dword(pdev, where, reg);
-
- /* This knows that the upper 32-bits of the address
- * must be zero. Our PCI common layer enforces this.
- */
- if (is_64bit)
- pci_write_config_dword(pdev, where + 4, 0);
-}
-
static void pbm_config_busmastering(struct pci_pbm_info *pbm)
{
u8 *addr;
static void pbm_scan_bus(struct pci_controller_info *p,
struct pci_pbm_info *pbm)
{
- struct pcidev_cookie *cookie = kzalloc(sizeof(*cookie), GFP_KERNEL);
-
- if (!cookie) {
- prom_printf("PSYCHO: Critical allocation failure.\n");
- prom_halt();
- }
-
- /* All we care about is the PBM. */
- cookie->pbm = pbm;
-
- pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno,
- p->pci_ops,
- pbm);
- pci_fixup_host_bridge_self(pbm->pci_bus);
- pbm->pci_bus->self->sysdata = cookie;
-
- pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
- pci_record_assignments(pbm, pbm->pci_bus);
- pci_assign_unassigned(pbm, pbm->pci_bus);
- pci_fixup_irq(pbm, pbm->pci_bus);
- pci_determine_66mhz_disposition(pbm, pbm->pci_bus);
- pci_setup_busmastering(pbm, pbm->pci_bus);
+ pbm->pci_bus = pci_scan_one_pbm(pbm);
}
static void psycho_scan_bus(struct pci_controller_info *p)
static void psycho_iommu_init(struct pci_controller_info *p)
{
- struct pci_iommu *iommu = p->pbm_A.iommu;
+ struct iommu *iommu = p->pbm_A.iommu;
unsigned long i;
u64 control;
psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIB_DIAG, tmp);
}
-static void pbm_register_toplevel_resources(struct pci_controller_info *p,
- struct pci_pbm_info *pbm)
-{
- char *name = pbm->name;
-
- pbm->io_space.name = pbm->mem_space.name = name;
-
- request_resource(&ioport_resource, &pbm->io_space);
- request_resource(&iomem_resource, &pbm->mem_space);
- pci_register_legacy_regions(&pbm->io_space,
- &pbm->mem_space);
-}
-
static void psycho_pbm_strbuf_init(struct pci_controller_info *p,
struct pci_pbm_info *pbm,
int is_pbm_a)
unsigned int *busrange;
struct property *prop;
struct pci_pbm_info *pbm;
- int len;
- if (is_pbm_a) {
+ if (is_pbm_a)
pbm = &p->pbm_A;
- pbm->pci_first_slot = 1;
- pbm->io_space.start = pbm->controller_regs + PSYCHO_IOSPACE_A;
- pbm->mem_space.start = pbm->controller_regs + PSYCHO_MEMSPACE_A;
- } else {
+ else
pbm = &p->pbm_B;
- pbm->pci_first_slot = 2;
- pbm->io_space.start = pbm->controller_regs + PSYCHO_IOSPACE_B;
- pbm->mem_space.start = pbm->controller_regs + PSYCHO_MEMSPACE_B;
- }
pbm->chip_type = PBM_CHIP_TYPE_PSYCHO;
pbm->chip_version = 0;
if (prop)
pbm->chip_revision = *(int *) prop->value;
- pbm->io_space.end = pbm->io_space.start + PSYCHO_IOSPACE_SIZE;
- pbm->io_space.flags = IORESOURCE_IO;
- pbm->mem_space.end = pbm->mem_space.start + PSYCHO_MEMSPACE_SIZE;
- pbm->mem_space.flags = IORESOURCE_MEM;
-
pbm->parent = p;
pbm->prom_node = dp;
pbm->name = dp->full_name;
- pbm_register_toplevel_resources(p, pbm);
-
printk("%s: PSYCHO PCI Bus Module ver[%x:%x]\n",
pbm->name,
pbm->chip_version, pbm->chip_revision);
- prop = of_find_property(dp, "ranges", &len);
- if (prop) {
- pbm->pbm_ranges = prop->value;
- pbm->num_pbm_ranges =
- (len / sizeof(struct linux_prom_pci_ranges));
- } else {
- pbm->num_pbm_ranges = 0;
- }
-
- prop = of_find_property(dp, "interrupt-map", &len);
- if (prop) {
- pbm->pbm_intmap = prop->value;
- pbm->num_pbm_intmap =
- (len / sizeof(struct linux_prom_pci_intmap));
-
- prop = of_find_property(dp, "interrupt-map-mask", NULL);
- pbm->pbm_intmask = prop->value;
- } else {
- pbm->num_pbm_intmap = 0;
- }
+ pci_determine_mem_io_space(pbm);
prop = of_find_property(dp, "bus-range", NULL);
busrange = prop->value;
{
struct linux_prom64_registers *pr_regs;
struct pci_controller_info *p;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
struct property *prop;
u32 upa_portid;
int is_pbm_a;
prom_printf("PSYCHO: Fatal memory allocation error.\n");
prom_halt();
}
- iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
+ iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
if (!iommu) {
prom_printf("PSYCHO: Fatal memory allocation error.\n");
prom_halt();
p->pbm_A.portid = upa_portid;
p->pbm_B.portid = upa_portid;
p->index = pci_num_controllers++;
- p->pbms_same_domain = 0;
p->scan_bus = psycho_scan_bus;
- p->base_address_update = psycho_base_address_update;
- p->resource_adjust = psycho_resource_adjust;
p->pci_ops = &psycho_ops;
prop = of_find_property(dp, "reg", NULL);
-/* $Id: pci_sabre.c,v 1.42 2002/01/23 11:27:32 davem Exp $
- * pci_sabre.c: Sabre specific PCI controller support.
+/* pci_sabre.c: Sabre specific PCI controller support.
*
- * Copyright (C) 1997, 1998, 1999 David S. Miller (davem@caipfs.rutgers.edu)
+ * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
* Copyright (C) 1998, 1999 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)
*/
return 0;
return ((pbm->parent == 0) ||
- ((pbm == &pbm->parent->pbm_B) &&
- (bus == pbm->pci_first_busno) &&
- PCI_SLOT(devfn) > 8) ||
((pbm == &pbm->parent->pbm_A) &&
(bus == pbm->pci_first_busno) &&
PCI_SLOT(devfn) > 8));
static int sabre_read_pci_cfg(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 *value)
{
+ struct pci_pbm_info *pbm = bus->sysdata;
+
+ if (bus == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_read_pci_cfg(bus, devfn, where,
+ size, value);
+
if (!bus->number && sabre_out_of_range(devfn)) {
switch (size) {
case 1:
static int sabre_write_pci_cfg(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 value)
{
+ struct pci_pbm_info *pbm = bus->sysdata;
+
+ if (bus == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_write_pci_cfg(bus, devfn, where,
+ size, value);
+
if (bus->number)
return __sabre_write_pci_cfg(bus, devfn, where, size, value);
unsigned long afsr,
unsigned long afar)
{
- struct pci_iommu *iommu = p->pbm_A.iommu;
+ struct iommu *iommu = p->pbm_A.iommu;
unsigned long iommu_tag[16];
unsigned long iommu_data[16];
unsigned long flags;
p->index);
ret = IRQ_HANDLED;
}
- pci_read_config_word(sabre_root_bus->self,
- PCI_STATUS, &stat);
+ pci_bus_read_config_word(sabre_root_bus, 0,
+ PCI_STATUS, &stat);
if (stat & (PCI_STATUS_PARITY |
PCI_STATUS_SIG_TARGET_ABORT |
PCI_STATUS_REC_TARGET_ABORT |
PCI_STATUS_SIG_SYSTEM_ERROR)) {
printk("SABRE%d: PCI bus error, PCI_STATUS[%04x]\n",
p->index, stat);
- pci_write_config_word(sabre_root_bus->self,
- PCI_STATUS, 0xffff);
+ pci_bus_write_config_word(sabre_root_bus, 0,
+ PCI_STATUS, 0xffff);
ret = IRQ_HANDLED;
}
return ret;
if (error_bits & (SABRE_PIOAFSR_PTA | SABRE_PIOAFSR_STA)) {
sabre_check_iommu_error(p, afsr, afar);
pci_scan_for_target_abort(p, &p->pbm_A, p->pbm_A.pci_bus);
- pci_scan_for_target_abort(p, &p->pbm_B, p->pbm_B.pci_bus);
}
- if (error_bits & (SABRE_PIOAFSR_PMA | SABRE_PIOAFSR_SMA)) {
+ if (error_bits & (SABRE_PIOAFSR_PMA | SABRE_PIOAFSR_SMA))
pci_scan_for_master_abort(p, &p->pbm_A, p->pbm_A.pci_bus);
- pci_scan_for_master_abort(p, &p->pbm_B, p->pbm_B.pci_bus);
- }
+
/* For excessive retries, SABRE/PBM will abort the device
* and there is no way to specifically check for excessive
* retries in the config space status registers. So what
* abort events.
*/
- if (error_bits & (SABRE_PIOAFSR_PPERR | SABRE_PIOAFSR_SPERR)) {
+ if (error_bits & (SABRE_PIOAFSR_PPERR | SABRE_PIOAFSR_SPERR))
pci_scan_for_parity_error(p, &p->pbm_A, p->pbm_A.pci_bus);
- pci_scan_for_parity_error(p, &p->pbm_B, p->pbm_B.pci_bus);
- }
return IRQ_HANDLED;
}
sabre_write(base + SABRE_PCICTRL, tmp);
}
-static void sabre_resource_adjust(struct pci_dev *pdev,
- struct resource *res,
- struct resource *root)
-{
- struct pci_pbm_info *pbm = pdev->bus->sysdata;
- unsigned long base;
-
- if (res->flags & IORESOURCE_IO)
- base = pbm->controller_regs + SABRE_IOSPACE;
- else
- base = pbm->controller_regs + SABRE_MEMSPACE;
-
- res->start += base;
- res->end += base;
-}
-
-static void sabre_base_address_update(struct pci_dev *pdev, int resource)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
- struct resource *res;
- unsigned long base;
- u32 reg;
- int where, size, is_64bit;
-
- res = &pdev->resource[resource];
- if (resource < 6) {
- where = PCI_BASE_ADDRESS_0 + (resource * 4);
- } else if (resource == PCI_ROM_RESOURCE) {
- where = pdev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- is_64bit = 0;
- if (res->flags & IORESOURCE_IO)
- base = pbm->controller_regs + SABRE_IOSPACE;
- else {
- base = pbm->controller_regs + SABRE_MEMSPACE;
- if ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK)
- == PCI_BASE_ADDRESS_MEM_TYPE_64)
- is_64bit = 1;
- }
-
- size = res->end - res->start;
- pci_read_config_dword(pdev, where, ®);
- reg = ((reg & size) |
- (((u32)(res->start - base)) & ~size));
- if (resource == PCI_ROM_RESOURCE) {
- reg |= PCI_ROM_ADDRESS_ENABLE;
- res->flags |= IORESOURCE_ROM_ENABLE;
- }
- pci_write_config_dword(pdev, where, reg);
-
- /* This knows that the upper 32-bits of the address
- * must be zero. Our PCI common layer enforces this.
- */
- if (is_64bit)
- pci_write_config_dword(pdev, where + 4, 0);
-}
-
static void apb_init(struct pci_controller_info *p, struct pci_bus *sabre_bus)
{
struct pci_dev *pdev;
list_for_each_entry(pdev, &sabre_bus->devices, bus_list) {
-
if (pdev->vendor == PCI_VENDOR_ID_SUN &&
pdev->device == PCI_DEVICE_ID_SUN_SIMBA) {
- u32 word32;
u16 word16;
- sabre_read_pci_cfg(pdev->bus, pdev->devfn,
- PCI_COMMAND, 2, &word32);
- word16 = (u16) word32;
+ pci_read_config_word(pdev, PCI_COMMAND, &word16);
word16 |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY |
PCI_COMMAND_IO;
- word32 = (u32) word16;
- sabre_write_pci_cfg(pdev->bus, pdev->devfn,
- PCI_COMMAND, 2, word32);
+ pci_write_config_word(pdev, PCI_COMMAND, word16);
/* Status register bits are "write 1 to clear". */
- sabre_write_pci_cfg(pdev->bus, pdev->devfn,
- PCI_STATUS, 2, 0xffff);
- sabre_write_pci_cfg(pdev->bus, pdev->devfn,
- PCI_SEC_STATUS, 2, 0xffff);
+ pci_write_config_word(pdev, PCI_STATUS, 0xffff);
+ pci_write_config_word(pdev, PCI_SEC_STATUS, 0xffff);
/* Use a primary/seconday latency timer value
* of 64.
*/
- sabre_write_pci_cfg(pdev->bus, pdev->devfn,
- PCI_LATENCY_TIMER, 1, 64);
- sabre_write_pci_cfg(pdev->bus, pdev->devfn,
- PCI_SEC_LATENCY_TIMER, 1, 64);
+ pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
+ pci_write_config_byte(pdev, PCI_SEC_LATENCY_TIMER, 64);
/* Enable reporting/forwarding of master aborts,
* parity, and SERR.
*/
- sabre_write_pci_cfg(pdev->bus, pdev->devfn,
- PCI_BRIDGE_CONTROL, 1,
- (PCI_BRIDGE_CTL_PARITY |
- PCI_BRIDGE_CTL_SERR |
- PCI_BRIDGE_CTL_MASTER_ABORT));
+ pci_write_config_byte(pdev, PCI_BRIDGE_CONTROL,
+ (PCI_BRIDGE_CTL_PARITY |
+ PCI_BRIDGE_CTL_SERR |
+ PCI_BRIDGE_CTL_MASTER_ABORT));
}
}
}
-static struct pcidev_cookie *alloc_bridge_cookie(struct pci_pbm_info *pbm)
-{
- struct pcidev_cookie *cookie = kzalloc(sizeof(*cookie), GFP_KERNEL);
-
- if (!cookie) {
- prom_printf("SABRE: Critical allocation failure.\n");
- prom_halt();
- }
-
- /* All we care about is the PBM. */
- cookie->pbm = pbm;
-
- return cookie;
-}
-
static void sabre_scan_bus(struct pci_controller_info *p)
{
static int once;
- struct pci_bus *sabre_bus, *pbus;
- struct pci_pbm_info *pbm;
- struct pcidev_cookie *cookie;
- int sabres_scanned;
+ struct pci_bus *pbus;
/* The APB bridge speaks to the Sabre host PCI bridge
* at 66Mhz, but the front side of APB runs at 33Mhz
* for both segments.
*/
p->pbm_A.is_66mhz_capable = 0;
- p->pbm_B.is_66mhz_capable = 0;
/* This driver has not been verified to handle
* multiple SABREs yet, so trap this.
}
once++;
- cookie = alloc_bridge_cookie(&p->pbm_A);
-
- sabre_bus = pci_scan_bus(p->pci_first_busno,
- p->pci_ops,
- &p->pbm_A);
- pci_fixup_host_bridge_self(sabre_bus);
- sabre_bus->self->sysdata = cookie;
-
- sabre_root_bus = sabre_bus;
-
- apb_init(p, sabre_bus);
-
- sabres_scanned = 0;
-
- list_for_each_entry(pbus, &sabre_bus->children, node) {
-
- if (pbus->number == p->pbm_A.pci_first_busno) {
- pbm = &p->pbm_A;
- } else if (pbus->number == p->pbm_B.pci_first_busno) {
- pbm = &p->pbm_B;
- } else
- continue;
-
- cookie = alloc_bridge_cookie(pbm);
- pbus->self->sysdata = cookie;
-
- sabres_scanned++;
+ pbus = pci_scan_one_pbm(&p->pbm_A);
+ if (!pbus)
+ return;
- pbus->sysdata = pbm;
- pbm->pci_bus = pbus;
- pci_fill_in_pbm_cookies(pbus, pbm, pbm->prom_node);
- pci_record_assignments(pbm, pbus);
- pci_assign_unassigned(pbm, pbus);
- pci_fixup_irq(pbm, pbus);
- pci_determine_66mhz_disposition(pbm, pbus);
- pci_setup_busmastering(pbm, pbus);
- }
+ sabre_root_bus = pbus;
- if (!sabres_scanned) {
- /* Hummingbird, no APBs. */
- pbm = &p->pbm_A;
- sabre_bus->sysdata = pbm;
- pbm->pci_bus = sabre_bus;
- pci_fill_in_pbm_cookies(sabre_bus, pbm, pbm->prom_node);
- pci_record_assignments(pbm, sabre_bus);
- pci_assign_unassigned(pbm, sabre_bus);
- pci_fixup_irq(pbm, sabre_bus);
- pci_determine_66mhz_disposition(pbm, sabre_bus);
- pci_setup_busmastering(pbm, sabre_bus);
- }
+ apb_init(p, pbus);
sabre_register_error_handlers(p);
}
int tsbsize, unsigned long dvma_offset,
u32 dma_mask)
{
- struct pci_iommu *iommu = p->pbm_A.iommu;
+ struct iommu *iommu = p->pbm_A.iommu;
unsigned long i;
u64 control;
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL, control);
}
-static void pbm_register_toplevel_resources(struct pci_controller_info *p,
- struct pci_pbm_info *pbm)
-{
- char *name = pbm->name;
- unsigned long ibase = p->pbm_A.controller_regs + SABRE_IOSPACE;
- unsigned long mbase = p->pbm_A.controller_regs + SABRE_MEMSPACE;
- unsigned int devfn;
- unsigned long first, last, i;
- u8 *addr, map;
-
- sprintf(name, "SABRE%d PBM%c",
- p->index,
- (pbm == &p->pbm_A ? 'A' : 'B'));
- pbm->io_space.name = pbm->mem_space.name = name;
-
- devfn = PCI_DEVFN(1, (pbm == &p->pbm_A) ? 0 : 1);
- addr = sabre_pci_config_mkaddr(pbm, 0, devfn, APB_IO_ADDRESS_MAP);
- map = 0;
- pci_config_read8(addr, &map);
-
- first = 8;
- last = 0;
- for (i = 0; i < 8; i++) {
- if ((map & (1 << i)) != 0) {
- if (first > i)
- first = i;
- if (last < i)
- last = i;
- }
- }
- pbm->io_space.start = ibase + (first << 21UL);
- pbm->io_space.end = ibase + (last << 21UL) + ((1 << 21UL) - 1);
- pbm->io_space.flags = IORESOURCE_IO;
-
- addr = sabre_pci_config_mkaddr(pbm, 0, devfn, APB_MEM_ADDRESS_MAP);
- map = 0;
- pci_config_read8(addr, &map);
-
- first = 8;
- last = 0;
- for (i = 0; i < 8; i++) {
- if ((map & (1 << i)) != 0) {
- if (first > i)
- first = i;
- if (last < i)
- last = i;
- }
- }
- pbm->mem_space.start = mbase + (first << 29UL);
- pbm->mem_space.end = mbase + (last << 29UL) + ((1 << 29UL) - 1);
- pbm->mem_space.flags = IORESOURCE_MEM;
-
- if (request_resource(&ioport_resource, &pbm->io_space) < 0) {
- prom_printf("Cannot register PBM-%c's IO space.\n",
- (pbm == &p->pbm_A ? 'A' : 'B'));
- prom_halt();
- }
- if (request_resource(&iomem_resource, &pbm->mem_space) < 0) {
- prom_printf("Cannot register PBM-%c's MEM space.\n",
- (pbm == &p->pbm_A ? 'A' : 'B'));
- prom_halt();
- }
-
- /* Register legacy regions if this PBM covers that area. */
- if (pbm->io_space.start == ibase &&
- pbm->mem_space.start == mbase)
- pci_register_legacy_regions(&pbm->io_space,
- &pbm->mem_space);
-}
-
-static void sabre_pbm_init(struct pci_controller_info *p, struct device_node *dp, u32 dma_start, u32 dma_end)
+static void sabre_pbm_init(struct pci_controller_info *p, struct device_node *dp)
{
struct pci_pbm_info *pbm;
- struct device_node *node;
- struct property *prop;
- u32 *busrange;
- int len, simbas_found;
-
- simbas_found = 0;
- node = dp->child;
- while (node != NULL) {
- if (strcmp(node->name, "pci"))
- goto next_pci;
-
- prop = of_find_property(node, "model", NULL);
- if (!prop || strncmp(prop->value, "SUNW,simba", prop->length))
- goto next_pci;
-
- simbas_found++;
-
- prop = of_find_property(node, "bus-range", NULL);
- busrange = prop->value;
- if (busrange[0] == 1)
- pbm = &p->pbm_B;
- else
- pbm = &p->pbm_A;
-
- pbm->name = node->full_name;
- printk("%s: SABRE PCI Bus Module\n", pbm->name);
-
- pbm->chip_type = PBM_CHIP_TYPE_SABRE;
- pbm->parent = p;
- pbm->prom_node = node;
- pbm->pci_first_slot = 1;
- pbm->pci_first_busno = busrange[0];
- pbm->pci_last_busno = busrange[1];
-
- prop = of_find_property(node, "ranges", &len);
- if (prop) {
- pbm->pbm_ranges = prop->value;
- pbm->num_pbm_ranges =
- (len / sizeof(struct linux_prom_pci_ranges));
- } else {
- pbm->num_pbm_ranges = 0;
- }
- prop = of_find_property(node, "interrupt-map", &len);
- if (prop) {
- pbm->pbm_intmap = prop->value;
- pbm->num_pbm_intmap =
- (len / sizeof(struct linux_prom_pci_intmap));
-
- prop = of_find_property(node, "interrupt-map-mask",
- NULL);
- pbm->pbm_intmask = prop->value;
- } else {
- pbm->num_pbm_intmap = 0;
- }
+ pbm = &p->pbm_A;
+ pbm->name = dp->full_name;
+ printk("%s: SABRE PCI Bus Module\n", pbm->name);
- pbm_register_toplevel_resources(p, pbm);
-
- next_pci:
- node = node->sibling;
- }
- if (simbas_found == 0) {
- struct resource *rp;
+ pbm->chip_type = PBM_CHIP_TYPE_SABRE;
+ pbm->parent = p;
+ pbm->prom_node = dp;
+ pbm->pci_first_busno = p->pci_first_busno;
+ pbm->pci_last_busno = p->pci_last_busno;
- /* No APBs underneath, probably this is a hummingbird
- * system.
- */
- pbm = &p->pbm_A;
- pbm->parent = p;
- pbm->prom_node = dp;
- pbm->pci_first_busno = p->pci_first_busno;
- pbm->pci_last_busno = p->pci_last_busno;
-
- prop = of_find_property(dp, "ranges", &len);
- if (prop) {
- pbm->pbm_ranges = prop->value;
- pbm->num_pbm_ranges =
- (len / sizeof(struct linux_prom_pci_ranges));
- } else {
- pbm->num_pbm_ranges = 0;
- }
-
- prop = of_find_property(dp, "interrupt-map", &len);
- if (prop) {
- pbm->pbm_intmap = prop->value;
- pbm->num_pbm_intmap =
- (len / sizeof(struct linux_prom_pci_intmap));
-
- prop = of_find_property(dp, "interrupt-map-mask",
- NULL);
- pbm->pbm_intmask = prop->value;
- } else {
- pbm->num_pbm_intmap = 0;
- }
-
- pbm->name = dp->full_name;
- printk("%s: SABRE PCI Bus Module\n", pbm->name);
-
- pbm->io_space.name = pbm->mem_space.name = pbm->name;
-
- /* Hack up top-level resources. */
- pbm->io_space.start = p->pbm_A.controller_regs + SABRE_IOSPACE;
- pbm->io_space.end = pbm->io_space.start + (1UL << 24) - 1UL;
- pbm->io_space.flags = IORESOURCE_IO;
-
- pbm->mem_space.start =
- (p->pbm_A.controller_regs + SABRE_MEMSPACE);
- pbm->mem_space.end =
- (pbm->mem_space.start + ((1UL << 32UL) - 1UL));
- pbm->mem_space.flags = IORESOURCE_MEM;
-
- if (request_resource(&ioport_resource, &pbm->io_space) < 0) {
- prom_printf("Cannot register Hummingbird's IO space.\n");
- prom_halt();
- }
- if (request_resource(&iomem_resource, &pbm->mem_space) < 0) {
- prom_printf("Cannot register Hummingbird's MEM space.\n");
- prom_halt();
- }
-
- rp = kmalloc(sizeof(*rp), GFP_KERNEL);
- if (!rp) {
- prom_printf("Cannot allocate IOMMU resource.\n");
- prom_halt();
- }
- rp->name = "IOMMU";
- rp->start = pbm->mem_space.start + (unsigned long) dma_start;
- rp->end = pbm->mem_space.start + (unsigned long) dma_end - 1UL;
- rp->flags = IORESOURCE_BUSY;
- request_resource(&pbm->mem_space, rp);
-
- pci_register_legacy_regions(&pbm->io_space,
- &pbm->mem_space);
- }
+ pci_determine_mem_io_space(pbm);
}
void sabre_init(struct device_node *dp, char *model_name)
{
- struct linux_prom64_registers *pr_regs;
+ const struct linux_prom64_registers *pr_regs;
struct pci_controller_info *p;
- struct pci_iommu *iommu;
- struct property *prop;
+ struct iommu *iommu;
int tsbsize;
- u32 *busrange;
- u32 *vdma;
+ const u32 *busrange;
+ const u32 *vdma;
u32 upa_portid, dma_mask;
u64 clear_irq;
if (!strcmp(model_name, "pci108e,a001"))
hummingbird_p = 1;
else if (!strcmp(model_name, "SUNW,sabre")) {
- prop = of_find_property(dp, "compatible", NULL);
- if (prop) {
- const char *compat = prop->value;
-
- if (!strcmp(compat, "pci108e,a001"))
- hummingbird_p = 1;
- }
+ const char *compat = of_get_property(dp, "compatible", NULL);
+ if (compat && !strcmp(compat, "pci108e,a001"))
+ hummingbird_p = 1;
if (!hummingbird_p) {
struct device_node *dp;
prom_printf("SABRE: Error, kmalloc(pci_iommu) failed.\n");
prom_halt();
}
- p->pbm_A.iommu = p->pbm_B.iommu = iommu;
+ p->pbm_A.iommu = iommu;
- upa_portid = 0xff;
- prop = of_find_property(dp, "upa-portid", NULL);
- if (prop)
- upa_portid = *(u32 *) prop->value;
+ upa_portid = of_getintprop_default(dp, "upa-portid", 0xff);
p->next = pci_controller_root;
pci_controller_root = p;
p->pbm_A.portid = upa_portid;
- p->pbm_B.portid = upa_portid;
p->index = pci_num_controllers++;
- p->pbms_same_domain = 1;
p->scan_bus = sabre_scan_bus;
- p->base_address_update = sabre_base_address_update;
- p->resource_adjust = sabre_resource_adjust;
p->pci_ops = &sabre_ops;
/*
* Map in SABRE register set and report the presence of this SABRE.
*/
- prop = of_find_property(dp, "reg", NULL);
- pr_regs = prop->value;
+ pr_regs = of_get_property(dp, "reg", NULL);
/*
* First REG in property is base of entire SABRE register space.
*/
p->pbm_A.controller_regs = pr_regs[0].phys_addr;
- p->pbm_B.controller_regs = pr_regs[0].phys_addr;
/* Clear interrupts */
SABRE_PCICTRL_ARBPARK | SABRE_PCICTRL_AEN));
/* Now map in PCI config space for entire SABRE. */
- p->pbm_A.config_space = p->pbm_B.config_space =
+ p->pbm_A.config_space =
(p->pbm_A.controller_regs + SABRE_CONFIGSPACE);
- prop = of_find_property(dp, "virtual-dma", NULL);
- vdma = prop->value;
+ vdma = of_get_property(dp, "virtual-dma", NULL);
dma_mask = vdma[0];
switch(vdma[1]) {
sabre_iommu_init(p, tsbsize, vdma[0], dma_mask);
- prop = of_find_property(dp, "bus-range", NULL);
- busrange = prop->value;
+ busrange = of_get_property(dp, "bus-range", NULL);
p->pci_first_busno = busrange[0];
p->pci_last_busno = busrange[1];
/*
* Look for APB underneath.
*/
- sabre_pbm_init(p, dp, vdma[0], vdma[0] + vdma[1]);
+ sabre_pbm_init(p, dp);
}
-/* $Id: pci_schizo.c,v 1.24 2002/01/23 11:27:32 davem Exp $
- * pci_schizo.c: SCHIZO/TOMATILLO specific PCI controller support.
+/* pci_schizo.c: SCHIZO/TOMATILLO specific PCI controller support.
*
- * Copyright (C) 2001, 2002, 2003 David S. Miller (davem@redhat.com)
+ * Copyright (C) 2001, 2002, 2003, 2007 David S. Miller (davem@davemloft.net)
*/
#include <linux/kernel.h>
u16 tmp16;
u8 tmp8;
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
+ size, value);
switch (size) {
case 1:
*value = 0xff;
unsigned char bus = bus_dev->number;
u32 *addr;
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
+ size, value);
addr = schizo_pci_config_mkaddr(pbm, bus, devfn, where);
if (!addr)
return PCIBIOS_SUCCESSFUL;
static void __schizo_check_stc_error_pbm(struct pci_pbm_info *pbm,
enum schizo_error_type type)
{
- struct pci_strbuf *strbuf = &pbm->stc;
+ struct strbuf *strbuf = &pbm->stc;
unsigned long regbase = pbm->pbm_regs;
unsigned long err_base, tag_base, line_base;
u64 control;
static void schizo_check_iommu_error_pbm(struct pci_pbm_info *pbm,
enum schizo_error_type type)
{
- struct pci_iommu *iommu = pbm->iommu;
+ struct iommu *iommu = pbm->iommu;
unsigned long iommu_tag[16];
unsigned long iommu_data[16];
unsigned long flags;
pci_config_write8(addr, 64);
}
-static void pbm_scan_bus(struct pci_controller_info *p,
- struct pci_pbm_info *pbm)
-{
- struct pcidev_cookie *cookie = kzalloc(sizeof(*cookie), GFP_KERNEL);
-
- if (!cookie) {
- prom_printf("%s: Critical allocation failure.\n", pbm->name);
- prom_halt();
- }
-
- /* All we care about is the PBM. */
- cookie->pbm = pbm;
-
- pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno,
- p->pci_ops,
- pbm);
- pci_fixup_host_bridge_self(pbm->pci_bus);
- pbm->pci_bus->self->sysdata = cookie;
-
- pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
- pci_record_assignments(pbm, pbm->pci_bus);
- pci_assign_unassigned(pbm, pbm->pci_bus);
- pci_fixup_irq(pbm, pbm->pci_bus);
- pci_determine_66mhz_disposition(pbm, pbm->pci_bus);
- pci_setup_busmastering(pbm, pbm->pci_bus);
-}
-
-static void __schizo_scan_bus(struct pci_controller_info *p,
- int chip_type)
+static void schizo_scan_bus(struct pci_controller_info *p)
{
- if (!p->pbm_B.prom_node || !p->pbm_A.prom_node) {
- printk("PCI: Only one PCI bus module of controller found.\n");
- printk("PCI: Ignoring entire controller.\n");
- return;
- }
-
pbm_config_busmastering(&p->pbm_B);
p->pbm_B.is_66mhz_capable =
(of_find_property(p->pbm_B.prom_node, "66mhz-capable", NULL)
p->pbm_A.is_66mhz_capable =
(of_find_property(p->pbm_A.prom_node, "66mhz-capable", NULL)
!= NULL);
- pbm_scan_bus(p, &p->pbm_B);
- pbm_scan_bus(p, &p->pbm_A);
+
+ p->pbm_B.pci_bus = pci_scan_one_pbm(&p->pbm_B);
+ p->pbm_A.pci_bus = pci_scan_one_pbm(&p->pbm_A);
/* After the PCI bus scan is complete, we can register
* the error interrupt handlers.
*/
- if (chip_type == PBM_CHIP_TYPE_TOMATILLO)
+ if (p->pbm_B.chip_type == PBM_CHIP_TYPE_TOMATILLO)
tomatillo_register_error_handlers(p);
else
schizo_register_error_handlers(p);
}
-static void schizo_scan_bus(struct pci_controller_info *p)
-{
- __schizo_scan_bus(p, PBM_CHIP_TYPE_SCHIZO);
-}
-
-static void tomatillo_scan_bus(struct pci_controller_info *p)
-{
- __schizo_scan_bus(p, PBM_CHIP_TYPE_TOMATILLO);
-}
-
-static void schizo_base_address_update(struct pci_dev *pdev, int resource)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
- struct resource *res, *root;
- u32 reg;
- int where, size, is_64bit;
-
- res = &pdev->resource[resource];
- if (resource < 6) {
- where = PCI_BASE_ADDRESS_0 + (resource * 4);
- } else if (resource == PCI_ROM_RESOURCE) {
- where = pdev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- is_64bit = 0;
- if (res->flags & IORESOURCE_IO)
- root = &pbm->io_space;
- else {
- root = &pbm->mem_space;
- if ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK)
- == PCI_BASE_ADDRESS_MEM_TYPE_64)
- is_64bit = 1;
- }
-
- size = res->end - res->start;
- pci_read_config_dword(pdev, where, ®);
- reg = ((reg & size) |
- (((u32)(res->start - root->start)) & ~size));
- if (resource == PCI_ROM_RESOURCE) {
- reg |= PCI_ROM_ADDRESS_ENABLE;
- res->flags |= IORESOURCE_ROM_ENABLE;
- }
- pci_write_config_dword(pdev, where, reg);
-
- /* This knows that the upper 32-bits of the address
- * must be zero. Our PCI common layer enforces this.
- */
- if (is_64bit)
- pci_write_config_dword(pdev, where + 4, 0);
-}
-
-static void schizo_resource_adjust(struct pci_dev *pdev,
- struct resource *res,
- struct resource *root)
-{
- res->start += root->start;
- res->end += root->start;
-}
-
-/* Use ranges property to determine where PCI MEM, I/O, and Config
- * space are for this PCI bus module.
- */
-static void schizo_determine_mem_io_space(struct pci_pbm_info *pbm)
-{
- int i, saw_cfg, saw_mem, saw_io;
-
- saw_cfg = saw_mem = saw_io = 0;
- for (i = 0; i < pbm->num_pbm_ranges; i++) {
- struct linux_prom_pci_ranges *pr = &pbm->pbm_ranges[i];
- unsigned long a;
- int type;
-
- type = (pr->child_phys_hi >> 24) & 0x3;
- a = (((unsigned long)pr->parent_phys_hi << 32UL) |
- ((unsigned long)pr->parent_phys_lo << 0UL));
-
- switch (type) {
- case 0:
- /* PCI config space, 16MB */
- pbm->config_space = a;
- saw_cfg = 1;
- break;
-
- case 1:
- /* 16-bit IO space, 16MB */
- pbm->io_space.start = a;
- pbm->io_space.end = a + ((16UL*1024UL*1024UL) - 1UL);
- pbm->io_space.flags = IORESOURCE_IO;
- saw_io = 1;
- break;
-
- case 2:
- /* 32-bit MEM space, 2GB */
- pbm->mem_space.start = a;
- pbm->mem_space.end = a + (0x80000000UL - 1UL);
- pbm->mem_space.flags = IORESOURCE_MEM;
- saw_mem = 1;
- break;
-
- default:
- break;
- };
- }
-
- if (!saw_cfg || !saw_io || !saw_mem) {
- prom_printf("%s: Fatal error, missing %s PBM range.\n",
- pbm->name,
- ((!saw_cfg ?
- "CFG" :
- (!saw_io ?
- "IO" : "MEM"))));
- prom_halt();
- }
-
- printk("%s: PCI CFG[%lx] IO[%lx] MEM[%lx]\n",
- pbm->name,
- pbm->config_space,
- pbm->io_space.start,
- pbm->mem_space.start);
-}
-
-static void pbm_register_toplevel_resources(struct pci_controller_info *p,
- struct pci_pbm_info *pbm)
-{
- pbm->io_space.name = pbm->mem_space.name = pbm->name;
-
- request_resource(&ioport_resource, &pbm->io_space);
- request_resource(&iomem_resource, &pbm->mem_space);
- pci_register_legacy_regions(&pbm->io_space,
- &pbm->mem_space);
-}
-
#define SCHIZO_STRBUF_CONTROL (0x02800UL)
#define SCHIZO_STRBUF_FLUSH (0x02808UL)
#define SCHIZO_STRBUF_FSYNC (0x02810UL)
static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
{
- struct pci_iommu *iommu = pbm->iommu;
+ struct iommu *iommu = pbm->iommu;
unsigned long i, tagbase, database;
struct property *prop;
u32 vdma[2], dma_mask;
struct device_node *dp, u32 portid,
int chip_type)
{
- struct linux_prom64_registers *regs;
- struct property *prop;
- unsigned int *busrange;
+ const struct linux_prom64_registers *regs;
+ const unsigned int *busrange;
struct pci_pbm_info *pbm;
const char *chipset_name;
- u32 *ino_bitmap;
+ const u32 *ino_bitmap;
int is_pbm_a;
- int len;
switch (chip_type) {
case PBM_CHIP_TYPE_TOMATILLO:
* 3) PBM PCI config space
* 4) Ichip regs
*/
- prop = of_find_property(dp, "reg", NULL);
- regs = prop->value;
+ regs = of_get_property(dp, "reg", NULL);
is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000);
-
if (is_pbm_a)
pbm = &p->pbm_A;
else
pbm->portid = portid;
pbm->parent = p;
pbm->prom_node = dp;
- pbm->pci_first_slot = 1;
pbm->chip_type = chip_type;
- pbm->chip_version = 0;
- prop = of_find_property(dp, "version#", NULL);
- if (prop)
- pbm->chip_version = *(int *) prop->value;
- pbm->chip_revision = 0;
- prop = of_find_property(dp, "module-revision#", NULL);
- if (prop)
- pbm->chip_revision = *(int *) prop->value;
+ pbm->chip_version = of_getintprop_default(dp, "version#", 0);
+ pbm->chip_revision = of_getintprop_default(dp, "module-version#", 0);
pbm->pbm_regs = regs[0].phys_addr;
pbm->controller_regs = regs[1].phys_addr - 0x10000UL;
pbm->name = dp->full_name;
printk("%s: %s PCI Bus Module ver[%x:%x]\n",
- pbm->name,
- (chip_type == PBM_CHIP_TYPE_TOMATILLO ?
- "TOMATILLO" : "SCHIZO"),
+ pbm->name, chipset_name,
pbm->chip_version, pbm->chip_revision);
schizo_pbm_hw_init(pbm);
- prop = of_find_property(dp, "ranges", &len);
- pbm->pbm_ranges = prop->value;
- pbm->num_pbm_ranges =
- (len / sizeof(struct linux_prom_pci_ranges));
+ pci_determine_mem_io_space(pbm);
- schizo_determine_mem_io_space(pbm);
- pbm_register_toplevel_resources(p, pbm);
-
- prop = of_find_property(dp, "interrupt-map", &len);
- if (prop) {
- pbm->pbm_intmap = prop->value;
- pbm->num_pbm_intmap =
- (len / sizeof(struct linux_prom_pci_intmap));
-
- prop = of_find_property(dp, "interrupt-map-mask", NULL);
- pbm->pbm_intmask = prop->value;
- } else {
- pbm->num_pbm_intmap = 0;
- }
-
- prop = of_find_property(dp, "ino-bitmap", NULL);
- ino_bitmap = prop->value;
+ ino_bitmap = of_get_property(dp, "ino-bitmap", NULL);
pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) |
((u64)ino_bitmap[0] << 0UL));
- prop = of_find_property(dp, "bus-range", NULL);
- busrange = prop->value;
+ busrange = of_get_property(dp, "bus-range", NULL);
pbm->pci_first_busno = busrange[0];
pbm->pci_last_busno = busrange[1];
static void __schizo_init(struct device_node *dp, char *model_name, int chip_type)
{
struct pci_controller_info *p;
- struct pci_iommu *iommu;
- struct property *prop;
- int is_pbm_a;
+ struct iommu *iommu;
u32 portid;
- portid = 0xff;
- prop = of_find_property(dp, "portid", NULL);
- if (prop)
- portid = *(u32 *) prop->value;
+ portid = of_getintprop_default(dp, "portid", 0xff);
for (p = pci_controller_root; p; p = p->next) {
struct pci_pbm_info *pbm;
&p->pbm_B);
if (portid_compare(pbm->portid, portid, chip_type)) {
- is_pbm_a = (p->pbm_A.prom_node == NULL);
schizo_pbm_init(p, dp, portid, chip_type);
return;
}
}
p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
- if (!p) {
- prom_printf("SCHIZO: Fatal memory allocation error.\n");
- prom_halt();
- }
+ if (!p)
+ goto memfail;
+
+ iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
+ if (!iommu)
+ goto memfail;
- iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
- if (!iommu) {
- prom_printf("SCHIZO: Fatal memory allocation error.\n");
- prom_halt();
- }
p->pbm_A.iommu = iommu;
- iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
- if (!iommu) {
- prom_printf("SCHIZO: Fatal memory allocation error.\n");
- prom_halt();
- }
+ iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
+ if (!iommu)
+ goto memfail;
+
p->pbm_B.iommu = iommu;
p->next = pci_controller_root;
pci_controller_root = p;
p->index = pci_num_controllers++;
- p->pbms_same_domain = 0;
- p->scan_bus = (chip_type == PBM_CHIP_TYPE_TOMATILLO ?
- tomatillo_scan_bus :
- schizo_scan_bus);
- p->base_address_update = schizo_base_address_update;
- p->resource_adjust = schizo_resource_adjust;
+ p->scan_bus = schizo_scan_bus;
p->pci_ops = &schizo_ops;
/* Like PSYCHO we have a 2GB aligned area for memory space. */
pci_memspace_mask = 0x7fffffffUL;
schizo_pbm_init(p, dp, portid, chip_type);
+ return;
+
+memfail:
+ prom_printf("SCHIZO: Fatal memory allocation error.\n");
+ prom_halt();
}
void schizo_init(struct device_node *dp, char *model_name)
/* pci_sun4v.c: SUN4V specific PCI controller support.
*
- * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
*/
#include <linux/kernel.h>
#define PGLIST_NENTS (PAGE_SIZE / sizeof(u64))
-struct pci_iommu_batch {
+struct iommu_batch {
struct pci_dev *pdev; /* Device mapping is for. */
unsigned long prot; /* IOMMU page protections */
unsigned long entry; /* Index into IOTSB. */
unsigned long npages; /* Number of pages in list. */
};
-static DEFINE_PER_CPU(struct pci_iommu_batch, pci_iommu_batch);
+static DEFINE_PER_CPU(struct iommu_batch, pci_iommu_batch);
/* Interrupts must be disabled. */
static inline void pci_iommu_batch_start(struct pci_dev *pdev, unsigned long prot, unsigned long entry)
{
- struct pci_iommu_batch *p = &__get_cpu_var(pci_iommu_batch);
+ struct iommu_batch *p = &__get_cpu_var(pci_iommu_batch);
p->pdev = pdev;
p->prot = prot;
}
/* Interrupts must be disabled. */
-static long pci_iommu_batch_flush(struct pci_iommu_batch *p)
+static long pci_iommu_batch_flush(struct iommu_batch *p)
{
- struct pcidev_cookie *pcp = p->pdev->sysdata;
- unsigned long devhandle = pcp->pbm->devhandle;
+ struct pci_pbm_info *pbm = p->pdev->dev.archdata.host_controller;
+ unsigned long devhandle = pbm->devhandle;
unsigned long prot = p->prot;
unsigned long entry = p->entry;
u64 *pglist = p->pglist;
/* Interrupts must be disabled. */
static inline long pci_iommu_batch_add(u64 phys_page)
{
- struct pci_iommu_batch *p = &__get_cpu_var(pci_iommu_batch);
+ struct iommu_batch *p = &__get_cpu_var(pci_iommu_batch);
BUG_ON(p->npages >= PGLIST_NENTS);
/* Interrupts must be disabled. */
static inline long pci_iommu_batch_end(void)
{
- struct pci_iommu_batch *p = &__get_cpu_var(pci_iommu_batch);
+ struct iommu_batch *p = &__get_cpu_var(pci_iommu_batch);
BUG_ON(p->npages >= PGLIST_NENTS);
return pci_iommu_batch_flush(p);
}
-static long pci_arena_alloc(struct pci_iommu_arena *arena, unsigned long npages)
+static long pci_arena_alloc(struct iommu_arena *arena, unsigned long npages)
{
unsigned long n, i, start, end, limit;
int pass;
return n;
}
-static void pci_arena_free(struct pci_iommu_arena *arena, unsigned long base, unsigned long npages)
+static void pci_arena_free(struct iommu_arena *arena, unsigned long base, unsigned long npages)
{
unsigned long i;
static void *pci_4v_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp, gfp_t gfp)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
unsigned long flags, order, first_page, npages, n;
void *ret;
long entry;
memset((char *)first_page, 0, PAGE_SIZE << order);
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
+ iommu = pdev->dev.archdata.iommu;
spin_lock_irqsave(&iommu->lock, flags);
entry = pci_arena_alloc(&iommu->arena, npages);
static void pci_4v_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_t dvma)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct pci_pbm_info *pbm;
+ struct iommu *iommu;
unsigned long flags, order, npages, entry;
u32 devhandle;
npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- devhandle = pcp->pbm->devhandle;
+ iommu = pdev->dev.archdata.iommu;
+ pbm = pdev->dev.archdata.host_controller;
+ devhandle = pbm->devhandle;
entry = ((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
spin_lock_irqsave(&iommu->lock, flags);
static dma_addr_t pci_4v_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
unsigned long flags, npages, oaddr;
unsigned long i, base_paddr;
u32 bus_addr, ret;
unsigned long prot;
long entry;
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
+ iommu = pdev->dev.archdata.iommu;
if (unlikely(direction == PCI_DMA_NONE))
goto bad;
static void pci_4v_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct pci_pbm_info *pbm;
+ struct iommu *iommu;
unsigned long flags, npages;
long entry;
u32 devhandle;
return;
}
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- devhandle = pcp->pbm->devhandle;
+ iommu = pdev->dev.archdata.iommu;
+ pbm = pdev->dev.archdata.host_controller;
+ devhandle = pbm->devhandle;
npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
static int pci_4v_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
unsigned long flags, npages, prot;
u32 dma_base;
struct scatterlist *sgtmp;
return 1;
}
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
+ iommu = pdev->dev.archdata.iommu;
if (unlikely(direction == PCI_DMA_NONE))
goto bad;
static void pci_4v_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct pcidev_cookie *pcp;
- struct pci_iommu *iommu;
+ struct pci_pbm_info *pbm;
+ struct iommu *iommu;
unsigned long flags, i, npages;
long entry;
u32 devhandle, bus_addr;
WARN_ON(1);
}
- pcp = pdev->sysdata;
- iommu = pcp->pbm->iommu;
- devhandle = pcp->pbm->devhandle;
+ iommu = pdev->dev.archdata.iommu;
+ pbm = pdev->dev.archdata.host_controller;
+ devhandle = pbm->devhandle;
bus_addr = sglist->dma_address & IO_PAGE_MASK;
/* Nothing to do... */
}
-struct pci_iommu_ops pci_sun4v_iommu_ops = {
+const struct pci_iommu_ops pci_sun4v_iommu_ops = {
.alloc_consistent = pci_4v_alloc_consistent,
.free_consistent = pci_4v_free_consistent,
.map_single = pci_4v_map_single,
.dma_sync_sg_for_cpu = pci_4v_dma_sync_sg_for_cpu,
};
-/* SUN4V PCI configuration space accessors. */
-
-struct pdev_entry {
- struct pdev_entry *next;
- u32 devhandle;
- unsigned int bus;
- unsigned int device;
- unsigned int func;
-};
-
-#define PDEV_HTAB_SIZE 16
-#define PDEV_HTAB_MASK (PDEV_HTAB_SIZE - 1)
-static struct pdev_entry *pdev_htab[PDEV_HTAB_SIZE];
-
-static inline unsigned int pdev_hashfn(u32 devhandle, unsigned int bus, unsigned int device, unsigned int func)
-{
- unsigned int val;
-
- val = (devhandle ^ (devhandle >> 4));
- val ^= bus;
- val ^= device;
- val ^= func;
-
- return val & PDEV_HTAB_MASK;
-}
-
-static int pdev_htab_add(u32 devhandle, unsigned int bus, unsigned int device, unsigned int func)
-{
- struct pdev_entry *p = kmalloc(sizeof(*p), GFP_KERNEL);
- struct pdev_entry **slot;
-
- if (!p)
- return -ENOMEM;
-
- slot = &pdev_htab[pdev_hashfn(devhandle, bus, device, func)];
- p->next = *slot;
- *slot = p;
-
- p->devhandle = devhandle;
- p->bus = bus;
- p->device = device;
- p->func = func;
-
- return 0;
-}
-
-/* Recursively descend into the OBP device tree, rooted at toplevel_node,
- * looking for a PCI device matching bus and devfn.
- */
-static int obp_find(struct device_node *toplevel_node, unsigned int bus, unsigned int devfn)
-{
- toplevel_node = toplevel_node->child;
-
- while (toplevel_node != NULL) {
- struct linux_prom_pci_registers *regs;
- struct property *prop;
- int ret;
-
- ret = obp_find(toplevel_node, bus, devfn);
- if (ret != 0)
- return ret;
-
- prop = of_find_property(toplevel_node, "reg", NULL);
- if (!prop)
- goto next_sibling;
-
- regs = prop->value;
- if (((regs->phys_hi >> 16) & 0xff) == bus &&
- ((regs->phys_hi >> 8) & 0xff) == devfn)
- break;
-
- next_sibling:
- toplevel_node = toplevel_node->sibling;
- }
-
- return toplevel_node != NULL;
-}
-
-static int pdev_htab_populate(struct pci_pbm_info *pbm)
-{
- u32 devhandle = pbm->devhandle;
- unsigned int bus;
-
- for (bus = pbm->pci_first_busno; bus <= pbm->pci_last_busno; bus++) {
- unsigned int devfn;
-
- for (devfn = 0; devfn < 256; devfn++) {
- unsigned int device = PCI_SLOT(devfn);
- unsigned int func = PCI_FUNC(devfn);
-
- if (obp_find(pbm->prom_node, bus, devfn)) {
- int err = pdev_htab_add(devhandle, bus,
- device, func);
- if (err)
- return err;
- }
- }
- }
-
- return 0;
-}
-
-static struct pdev_entry *pdev_find(u32 devhandle, unsigned int bus, unsigned int device, unsigned int func)
-{
- struct pdev_entry *p;
-
- p = pdev_htab[pdev_hashfn(devhandle, bus, device, func)];
- while (p) {
- if (p->devhandle == devhandle &&
- p->bus == bus &&
- p->device == device &&
- p->func == func)
- break;
-
- p = p->next;
- }
-
- return p;
-}
-
static inline int pci_sun4v_out_of_range(struct pci_pbm_info *pbm, unsigned int bus, unsigned int device, unsigned int func)
{
if (bus < pbm->pci_first_busno ||
bus > pbm->pci_last_busno)
return 1;
- return pdev_find(pbm->devhandle, bus, device, func) == NULL;
+ return 0;
}
static int pci_sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
unsigned int func = PCI_FUNC(devfn);
unsigned long ret;
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
+ size, value);
if (pci_sun4v_out_of_range(pbm, bus, device, func)) {
ret = ~0UL;
} else {
unsigned int func = PCI_FUNC(devfn);
unsigned long ret;
+ if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
+ size, value);
if (pci_sun4v_out_of_range(pbm, bus, device, func)) {
/* Do nothing. */
} else {
static void pbm_scan_bus(struct pci_controller_info *p,
struct pci_pbm_info *pbm)
{
- struct pcidev_cookie *cookie = kzalloc(sizeof(*cookie), GFP_KERNEL);
-
- if (!cookie) {
- prom_printf("%s: Critical allocation failure.\n", pbm->name);
- prom_halt();
- }
-
- /* All we care about is the PBM. */
- cookie->pbm = pbm;
-
- pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, p->pci_ops, pbm);
-#if 0
- pci_fixup_host_bridge_self(pbm->pci_bus);
- pbm->pci_bus->self->sysdata = cookie;
-#endif
- pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
- pci_record_assignments(pbm, pbm->pci_bus);
- pci_assign_unassigned(pbm, pbm->pci_bus);
- pci_fixup_irq(pbm, pbm->pci_bus);
- pci_determine_66mhz_disposition(pbm, pbm->pci_bus);
- pci_setup_busmastering(pbm, pbm->pci_bus);
+ pbm->pci_bus = pci_scan_one_pbm(pbm);
}
static void pci_sun4v_scan_bus(struct pci_controller_info *p)
/* XXX register error interrupt handlers XXX */
}
-static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
- struct resource *res, *root;
- u32 reg;
- int where, size, is_64bit;
-
- res = &pdev->resource[resource];
- if (resource < 6) {
- where = PCI_BASE_ADDRESS_0 + (resource * 4);
- } else if (resource == PCI_ROM_RESOURCE) {
- where = pdev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- /* XXX 64-bit MEM handling is not %100 correct... XXX */
- is_64bit = 0;
- if (res->flags & IORESOURCE_IO)
- root = &pbm->io_space;
- else {
- root = &pbm->mem_space;
- if ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK)
- == PCI_BASE_ADDRESS_MEM_TYPE_64)
- is_64bit = 1;
- }
-
- size = res->end - res->start;
- pci_read_config_dword(pdev, where, ®);
- reg = ((reg & size) |
- (((u32)(res->start - root->start)) & ~size));
- if (resource == PCI_ROM_RESOURCE) {
- reg |= PCI_ROM_ADDRESS_ENABLE;
- res->flags |= IORESOURCE_ROM_ENABLE;
- }
- pci_write_config_dword(pdev, where, reg);
-
- /* This knows that the upper 32-bits of the address
- * must be zero. Our PCI common layer enforces this.
- */
- if (is_64bit)
- pci_write_config_dword(pdev, where + 4, 0);
-}
-
-static void pci_sun4v_resource_adjust(struct pci_dev *pdev,
- struct resource *res,
- struct resource *root)
-{
- res->start += root->start;
- res->end += root->start;
-}
-
-/* Use ranges property to determine where PCI MEM, I/O, and Config
- * space are for this PCI bus module.
- */
-static void pci_sun4v_determine_mem_io_space(struct pci_pbm_info *pbm)
-{
- int i, saw_mem, saw_io;
-
- saw_mem = saw_io = 0;
- for (i = 0; i < pbm->num_pbm_ranges; i++) {
- struct linux_prom_pci_ranges *pr = &pbm->pbm_ranges[i];
- unsigned long a;
- int type;
-
- type = (pr->child_phys_hi >> 24) & 0x3;
- a = (((unsigned long)pr->parent_phys_hi << 32UL) |
- ((unsigned long)pr->parent_phys_lo << 0UL));
-
- switch (type) {
- case 1:
- /* 16-bit IO space, 16MB */
- pbm->io_space.start = a;
- pbm->io_space.end = a + ((16UL*1024UL*1024UL) - 1UL);
- pbm->io_space.flags = IORESOURCE_IO;
- saw_io = 1;
- break;
-
- case 2:
- /* 32-bit MEM space, 2GB */
- pbm->mem_space.start = a;
- pbm->mem_space.end = a + (0x80000000UL - 1UL);
- pbm->mem_space.flags = IORESOURCE_MEM;
- saw_mem = 1;
- break;
-
- case 3:
- /* XXX 64-bit MEM handling XXX */
-
- default:
- break;
- };
- }
-
- if (!saw_io || !saw_mem) {
- prom_printf("%s: Fatal error, missing %s PBM range.\n",
- pbm->name,
- (!saw_io ? "IO" : "MEM"));
- prom_halt();
- }
-
- printk("%s: PCI IO[%lx] MEM[%lx]\n",
- pbm->name,
- pbm->io_space.start,
- pbm->mem_space.start);
-}
-
-static void pbm_register_toplevel_resources(struct pci_controller_info *p,
- struct pci_pbm_info *pbm)
-{
- pbm->io_space.name = pbm->mem_space.name = pbm->name;
-
- request_resource(&ioport_resource, &pbm->io_space);
- request_resource(&iomem_resource, &pbm->mem_space);
- pci_register_legacy_regions(&pbm->io_space,
- &pbm->mem_space);
-}
-
static unsigned long probe_existing_entries(struct pci_pbm_info *pbm,
- struct pci_iommu *iommu)
+ struct iommu *iommu)
{
- struct pci_iommu_arena *arena = &iommu->arena;
+ struct iommu_arena *arena = &iommu->arena;
unsigned long i, cnt = 0;
u32 devhandle;
static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
{
- struct pci_iommu *iommu = pbm->iommu;
+ struct iommu *iommu = pbm->iommu;
struct property *prop;
unsigned long num_tsb_entries, sz;
u32 vdma[2], dma_mask, dma_offset;
static void pci_sun4v_msi_init(struct pci_pbm_info *pbm)
{
- u32 *val;
+ const u32 *val;
int len;
val = of_get_property(pbm->prom_node, "#msi-eqs", &len);
goto no_msi;
pbm->msiq_num = *val;
if (pbm->msiq_num) {
- struct msiq_prop {
+ const struct msiq_prop {
u32 first_msiq;
u32 num_msiq;
u32 first_devino;
} *mqp;
- struct msi_range_prop {
+ const struct msi_range_prop {
u32 first_msi;
u32 num_msi;
} *mrng;
- struct addr_range_prop {
+ const struct addr_range_prop {
u32 msi32_high;
u32 msi32_low;
u32 msi32_len;
struct pci_dev *pdev,
struct msi_desc *entry)
{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
+ struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
unsigned long devino, msiqid;
struct msi_msg msg;
int msi_num, err;
if (pci_sun4v_msi_setvalid(pbm->devhandle, msi_num, HV_MSIVALID_VALID))
goto out_err;
- pcp->msi_num = msi_num;
+ pdev->dev.archdata.msi_num = msi_num;
if (entry->msi_attrib.is_64) {
msg.address_hi = pbm->msi64_start >> 32;
static void pci_sun4v_teardown_msi_irq(unsigned int virt_irq,
struct pci_dev *pdev)
{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
+ struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
unsigned long msiqid, err;
unsigned int msi_num;
- msi_num = pcp->msi_num;
+ msi_num = pdev->dev.archdata.msi_num;
err = pci_sun4v_msi_getmsiq(pbm->devhandle, msi_num, &msiqid);
if (err) {
printk(KERN_ERR "%s: getmsiq gives error %lu\n",
static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node *dp, u32 devhandle)
{
struct pci_pbm_info *pbm;
- struct property *prop;
- int len, i;
if (devhandle & 0x40)
pbm = &p->pbm_B;
pbm->parent = p;
pbm->prom_node = dp;
- pbm->pci_first_slot = 1;
pbm->devhandle = devhandle;
printk("%s: SUN4V PCI Bus Module\n", pbm->name);
- prop = of_find_property(dp, "ranges", &len);
- pbm->pbm_ranges = prop->value;
- pbm->num_pbm_ranges =
- (len / sizeof(struct linux_prom_pci_ranges));
-
- /* Mask out the top 8 bits of the ranges, leaving the real
- * physical address.
- */
- for (i = 0; i < pbm->num_pbm_ranges; i++)
- pbm->pbm_ranges[i].parent_phys_hi &= 0x0fffffff;
-
- pci_sun4v_determine_mem_io_space(pbm);
- pbm_register_toplevel_resources(p, pbm);
-
- prop = of_find_property(dp, "interrupt-map", &len);
- pbm->pbm_intmap = prop->value;
- pbm->num_pbm_intmap =
- (len / sizeof(struct linux_prom_pci_intmap));
-
- prop = of_find_property(dp, "interrupt-map-mask", NULL);
- pbm->pbm_intmask = prop->value;
+ pci_determine_mem_io_space(pbm);
pci_sun4v_get_bus_range(pbm);
pci_sun4v_iommu_init(pbm);
pci_sun4v_msi_init(pbm);
-
- pdev_htab_populate(pbm);
}
void sun4v_pci_init(struct device_node *dp, char *model_name)
{
struct pci_controller_info *p;
- struct pci_iommu *iommu;
+ struct iommu *iommu;
struct property *prop;
struct linux_prom64_registers *regs;
u32 devhandle;
if (!p)
goto fatal_memory_error;
- iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
+ iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
if (!iommu)
goto fatal_memory_error;
p->pbm_A.iommu = iommu;
- iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
+ iommu = kzalloc(sizeof(struct iommu), GFP_ATOMIC);
if (!iommu)
goto fatal_memory_error;
pci_controller_root = p;
p->index = pci_num_controllers++;
- p->pbms_same_domain = 0;
p->scan_bus = pci_sun4v_scan_bus;
- p->base_address_update = pci_sun4v_base_address_update;
- p->resource_adjust = pci_sun4v_resource_adjust;
#ifdef CONFIG_PCI_MSI
p->setup_msi_irq = pci_sun4v_setup_msi_irq;
p->teardown_msi_irq = pci_sun4v_teardown_msi_irq;
#include <linux/reboot.h>
#include <linux/delay.h>
#include <linux/compat.h>
+#include <linux/tick.h>
#include <linux/init.h>
#include <asm/oplib.h>
set_thread_flag(TIF_POLLING_NRFLAG);
while(1) {
- if (need_resched()) {
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
- sparc64_yield();
+ tick_nohz_stop_sched_tick();
+ while (!need_resched())
+ sparc64_yield();
+ tick_nohz_restart_sched_tick();
+
+ preempt_enable_no_resched();
+ schedule();
+ preempt_disable();
}
}
*/
static DEFINE_RWLOCK(devtree_lock);
-int of_device_is_compatible(struct device_node *device, const char *compat)
+int of_device_is_compatible(const struct device_node *device,
+ const char *compat)
{
const char* cp;
int cplen, l;
- cp = (char *) of_get_property(device, "compatible", &cplen);
+ cp = of_get_property(device, "compatible", &cplen);
if (cp == NULL)
return 0;
while (cplen > 0) {
}
EXPORT_SYMBOL(of_find_compatible_node);
-struct property *of_find_property(struct device_node *np, const char *name,
+struct property *of_find_property(const struct device_node *np,
+ const char *name,
int *lenp)
{
struct property *pp;
for (pp = np->properties; pp != 0; pp = pp->next) {
- if (strcmp(pp->name, name) == 0) {
+ if (strcasecmp(pp->name, name) == 0) {
if (lenp != 0)
*lenp = pp->length;
break;
* Find a property with a given name for a given node
* and return the value.
*/
-void *of_get_property(struct device_node *np, const char *name, int *lenp)
+const void *of_get_property(const struct device_node *np, const char *name,
+ int *lenp)
{
struct property *pp = of_find_property(np,name,lenp);
return pp ? pp->value : NULL;
int of_n_addr_cells(struct device_node *np)
{
- int* ip;
+ const int* ip;
do {
if (np->parent)
np = np->parent;
int of_n_size_cells(struct device_node *np)
{
- int* ip;
+ const int* ip;
do {
if (np->parent)
np = np->parent;
while (*prevp) {
struct property *prop = *prevp;
- if (!strcmp(prop->name, name)) {
+ if (!strcasecmp(prop->name, name)) {
void *old_val = prop->value;
int ret;
static void psycho_irq_trans_init(struct device_node *dp)
{
- struct linux_prom64_registers *regs;
+ const struct linux_prom64_registers *regs;
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
dp->irq_trans->irq_build = psycho_irq_build;
static int sabre_device_needs_wsync(struct device_node *dp)
{
struct device_node *parent = dp->parent;
- char *parent_model, *parent_compat;
+ const char *parent_model, *parent_compat;
/* This traversal up towards the root is meant to
* handle two cases:
{
struct sabre_irq_data *irq_data = _data;
unsigned long controller_regs = irq_data->controller_regs;
- struct linux_prom_pci_registers *regs;
+ const struct linux_prom_pci_registers *regs;
unsigned long imap, iclr;
unsigned long imap_off, iclr_off;
int inofixup = 0;
static void sabre_irq_trans_init(struct device_node *dp)
{
- struct linux_prom64_registers *regs;
+ const struct linux_prom64_registers *regs;
struct sabre_irq_data *irq_data;
- u32 *busrange;
+ const u32 *busrange;
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
dp->irq_trans->irq_build = sabre_irq_build;
static void __schizo_irq_trans_init(struct device_node *dp, int is_tomatillo)
{
- struct linux_prom64_registers *regs;
+ const struct linux_prom64_registers *regs;
struct schizo_irq_data *irq_data;
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
static void pci_sun4v_irq_trans_init(struct device_node *dp)
{
- struct linux_prom64_registers *regs;
+ const struct linux_prom64_registers *regs;
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
dp->irq_trans->irq_build = pci_sun4v_irq_build;
void *_data)
{
unsigned long reg_base = (unsigned long) _data;
- struct linux_prom_registers *regs;
+ const struct linux_prom_registers *regs;
unsigned long imap, iclr;
int sbus_slot = 0;
int sbus_level = 0;
static void sbus_irq_trans_init(struct device_node *dp)
{
- struct linux_prom64_registers *regs;
+ const struct linux_prom64_registers *regs;
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
dp->irq_trans->irq_build = sbus_of_build_irq;
static void sun4v_vdev_irq_trans_init(struct device_node *dp)
{
- struct linux_prom64_registers *regs;
+ const struct linux_prom64_registers *regs;
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
dp->irq_trans->irq_build = sun4v_vdev_irq_build;
#define MAP_BASE ((u32)0xc0000000)
-struct sbus_iommu_arena {
- unsigned long *map;
- unsigned int hint;
- unsigned int limit;
-};
-
-struct sbus_iommu {
- spinlock_t lock;
-
- struct sbus_iommu_arena arena;
-
- iopte_t *page_table;
- unsigned long strbuf_regs;
- unsigned long iommu_regs;
- unsigned long sbus_control_reg;
-
- volatile unsigned long strbuf_flushflag;
+struct sbus_info {
+ struct iommu iommu;
+ struct strbuf strbuf;
};
/* Offsets from iommu_regs */
#define IOMMU_DRAM_VALID (1UL << 30UL)
-static void __iommu_flushall(struct sbus_iommu *iommu)
+static void __iommu_flushall(struct iommu *iommu)
{
- unsigned long tag = iommu->iommu_regs + IOMMU_TAGDIAG;
+ unsigned long tag;
int entry;
+ tag = iommu->iommu_control + (IOMMU_TAGDIAG - IOMMU_CONTROL);
for (entry = 0; entry < 16; entry++) {
upa_writeq(0, tag);
tag += 8UL;
}
- upa_readq(iommu->sbus_control_reg);
+ upa_readq(iommu->write_complete_reg);
}
/* Offsets from strbuf_regs */
#define STRBUF_TAG_VALID 0x02UL
-static void sbus_strbuf_flush(struct sbus_iommu *iommu, u32 base, unsigned long npages, int direction)
+static void sbus_strbuf_flush(struct iommu *iommu, struct strbuf *strbuf, u32 base, unsigned long npages, int direction)
{
unsigned long n;
int limit;
n = npages;
while (n--)
- upa_writeq(base + (n << IO_PAGE_SHIFT),
- iommu->strbuf_regs + STRBUF_PFLUSH);
+ upa_writeq(base + (n << IO_PAGE_SHIFT), strbuf->strbuf_pflush);
/* If the device could not have possibly put dirty data into
* the streaming cache, no flush-flag synchronization needs
if (direction == SBUS_DMA_TODEVICE)
return;
- iommu->strbuf_flushflag = 0UL;
+ *(strbuf->strbuf_flushflag) = 0UL;
/* Whoopee cushion! */
- upa_writeq(__pa(&iommu->strbuf_flushflag),
- iommu->strbuf_regs + STRBUF_FSYNC);
- upa_readq(iommu->sbus_control_reg);
+ upa_writeq(strbuf->strbuf_flushflag_pa, strbuf->strbuf_fsync);
+ upa_readq(iommu->write_complete_reg);
limit = 100000;
- while (iommu->strbuf_flushflag == 0UL) {
+ while (*(strbuf->strbuf_flushflag) == 0UL) {
limit--;
if (!limit)
break;
}
/* Based largely upon the ppc64 iommu allocator. */
-static long sbus_arena_alloc(struct sbus_iommu *iommu, unsigned long npages)
+static long sbus_arena_alloc(struct iommu *iommu, unsigned long npages)
{
- struct sbus_iommu_arena *arena = &iommu->arena;
+ struct iommu_arena *arena = &iommu->arena;
unsigned long n, i, start, end, limit;
int pass;
return n;
}
-static void sbus_arena_free(struct sbus_iommu_arena *arena, unsigned long base, unsigned long npages)
+static void sbus_arena_free(struct iommu_arena *arena, unsigned long base, unsigned long npages)
{
unsigned long i;
__clear_bit(i, arena->map);
}
-static void sbus_iommu_table_init(struct sbus_iommu *iommu, unsigned int tsbsize)
+static void sbus_iommu_table_init(struct iommu *iommu, unsigned int tsbsize)
{
unsigned long tsbbase, order, sz, num_tsb_entries;
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
+ iommu->page_table_map_base = MAP_BASE;
/* Allocate and initialize the free area map. */
sz = num_tsb_entries / 8;
sz = (sz + 7UL) & ~7UL;
iommu->arena.map = kzalloc(sz, GFP_KERNEL);
if (!iommu->arena.map) {
- prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n");
+ prom_printf("SBUS_IOMMU: Error, kmalloc(arena.map) failed.\n");
prom_halt();
}
iommu->arena.limit = num_tsb_entries;
memset(iommu->page_table, 0, tsbsize);
}
-static inline iopte_t *alloc_npages(struct sbus_iommu *iommu, unsigned long npages)
+static inline iopte_t *alloc_npages(struct iommu *iommu, unsigned long npages)
{
long entry;
return iommu->page_table + entry;
}
-static inline void free_npages(struct sbus_iommu *iommu, dma_addr_t base, unsigned long npages)
+static inline void free_npages(struct iommu *iommu, dma_addr_t base, unsigned long npages)
{
sbus_arena_free(&iommu->arena, base >> IO_PAGE_SHIFT, npages);
}
void *sbus_alloc_consistent(struct sbus_dev *sdev, size_t size, dma_addr_t *dvma_addr)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, first_page;
void *ret;
return NULL;
memset((char *)first_page, 0, PAGE_SIZE << order);
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
spin_lock_irqsave(&iommu->lock, flags);
iopte = alloc_npages(iommu, size >> IO_PAGE_SHIFT);
return NULL;
}
- *dvma_addr = (MAP_BASE +
+ *dvma_addr = (iommu->page_table_map_base +
((iopte - iommu->page_table) << IO_PAGE_SHIFT));
ret = (void *) first_page;
npages = size >> IO_PAGE_SHIFT;
void sbus_free_consistent(struct sbus_dev *sdev, size_t size, void *cpu, dma_addr_t dvma)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, npages;
npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
iopte = iommu->page_table +
- ((dvma - MAP_BASE) >> IO_PAGE_SHIFT);
+ ((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
spin_lock_irqsave(&iommu->lock, flags);
- free_npages(iommu, dvma - MAP_BASE, npages);
+ free_npages(iommu, dvma - iommu->page_table_map_base, npages);
spin_unlock_irqrestore(&iommu->lock, flags);
dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *ptr, size_t sz, int direction)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
iopte_t *base;
unsigned long flags, npages, oaddr;
unsigned long i, base_paddr;
u32 bus_addr, ret;
unsigned long iopte_protection;
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
if (unlikely(direction == SBUS_DMA_NONE))
BUG();
if (unlikely(!base))
BUG();
- bus_addr = (MAP_BASE +
+ bus_addr = (iommu->page_table_map_base +
((base - iommu->page_table) << IO_PAGE_SHIFT));
ret = bus_addr | (oaddr & ~IO_PAGE_MASK);
base_paddr = __pa(oaddr & IO_PAGE_MASK);
void sbus_unmap_single(struct sbus_dev *sdev, dma_addr_t bus_addr, size_t sz, int direction)
{
- struct sbus_iommu *iommu = sdev->bus->iommu;
+ struct sbus_info *info = sdev->bus->iommu;
+ struct iommu *iommu = &info->iommu;
+ struct strbuf *strbuf = &info->strbuf;
iopte_t *base;
unsigned long flags, npages, i;
npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
base = iommu->page_table +
- ((bus_addr - MAP_BASE) >> IO_PAGE_SHIFT);
+ ((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
bus_addr &= IO_PAGE_MASK;
spin_lock_irqsave(&iommu->lock, flags);
- sbus_strbuf_flush(iommu, bus_addr, npages, direction);
+ sbus_strbuf_flush(iommu, strbuf, bus_addr, npages, direction);
for (i = 0; i < npages; i++)
iopte_val(base[i]) = 0UL;
- free_npages(iommu, bus_addr - MAP_BASE, npages);
+ free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
spin_unlock_irqrestore(&iommu->lock, flags);
}
int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
unsigned long flags, npages, iopte_protection;
iopte_t *base;
u32 dma_base;
return 1;
}
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
if (unlikely(direction == SBUS_DMA_NONE))
BUG();
if (unlikely(base == NULL))
BUG();
- dma_base = MAP_BASE +
+ dma_base = iommu->page_table_map_base +
((base - iommu->page_table) << IO_PAGE_SHIFT);
/* Normalize DVMA addresses. */
void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
iopte_t *base;
unsigned long flags, i, npages;
u32 bus_addr;
if (unlikely(direction == SBUS_DMA_NONE))
BUG();
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
+ strbuf = &info->strbuf;
bus_addr = sglist->dma_address & IO_PAGE_MASK;
bus_addr) >> IO_PAGE_SHIFT;
base = iommu->page_table +
- ((bus_addr - MAP_BASE) >> IO_PAGE_SHIFT);
+ ((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
spin_lock_irqsave(&iommu->lock, flags);
- sbus_strbuf_flush(iommu, bus_addr, npages, direction);
+ sbus_strbuf_flush(iommu, strbuf, bus_addr, npages, direction);
for (i = 0; i < npages; i++)
iopte_val(base[i]) = 0UL;
- free_npages(iommu, bus_addr - MAP_BASE, npages);
+ free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
spin_unlock_irqrestore(&iommu->lock, flags);
}
void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t bus_addr, size_t sz, int direction)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
unsigned long flags, npages;
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
+ strbuf = &info->strbuf;
npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
bus_addr &= IO_PAGE_MASK;
spin_lock_irqsave(&iommu->lock, flags);
- sbus_strbuf_flush(iommu, bus_addr, npages, direction);
+ sbus_strbuf_flush(iommu, strbuf, bus_addr, npages, direction);
spin_unlock_irqrestore(&iommu->lock, flags);
}
void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, struct scatterlist *sglist, int nelems, int direction)
{
- struct sbus_iommu *iommu;
+ struct sbus_info *info;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
unsigned long flags, npages, i;
u32 bus_addr;
- iommu = sdev->bus->iommu;
+ info = sdev->bus->iommu;
+ iommu = &info->iommu;
+ strbuf = &info->strbuf;
bus_addr = sglist[0].dma_address & IO_PAGE_MASK;
for (i = 0; i < nelems; i++) {
- bus_addr) >> IO_PAGE_SHIFT;
spin_lock_irqsave(&iommu->lock, flags);
- sbus_strbuf_flush(iommu, bus_addr, npages, direction);
+ sbus_strbuf_flush(iommu, strbuf, bus_addr, npages, direction);
spin_unlock_irqrestore(&iommu->lock, flags);
}
/* Enable 64-bit DVMA mode for the given device. */
void sbus_set_sbus64(struct sbus_dev *sdev, int bursts)
{
- struct sbus_iommu *iommu = sdev->bus->iommu;
+ struct sbus_info *info = sdev->bus->iommu;
+ struct iommu *iommu = &info->iommu;
int slot = sdev->slot;
unsigned long cfg_reg;
u64 val;
- cfg_reg = iommu->sbus_control_reg;
+ cfg_reg = iommu->write_complete_reg;
switch (slot) {
case 0:
cfg_reg += 0x20UL;
unsigned int sbus_build_irq(void *buscookie, unsigned int ino)
{
struct sbus_bus *sbus = (struct sbus_bus *)buscookie;
- struct sbus_iommu *iommu = sbus->iommu;
- unsigned long reg_base = iommu->sbus_control_reg - 0x2000UL;
+ struct sbus_info *info = sbus->iommu;
+ struct iommu *iommu = &info->iommu;
+ unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
unsigned long imap, iclr;
int sbus_level = 0;
static irqreturn_t sysio_ue_handler(int irq, void *dev_id)
{
struct sbus_bus *sbus = dev_id;
- struct sbus_iommu *iommu = sbus->iommu;
- unsigned long reg_base = iommu->sbus_control_reg - 0x2000UL;
+ struct sbus_info *info = sbus->iommu;
+ struct iommu *iommu = &info->iommu;
+ unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
unsigned long afsr_reg, afar_reg;
unsigned long afsr, afar, error_bits;
int reported;
static irqreturn_t sysio_ce_handler(int irq, void *dev_id)
{
struct sbus_bus *sbus = dev_id;
- struct sbus_iommu *iommu = sbus->iommu;
- unsigned long reg_base = iommu->sbus_control_reg - 0x2000UL;
+ struct sbus_info *info = sbus->iommu;
+ struct iommu *iommu = &info->iommu;
+ unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
unsigned long afsr_reg, afar_reg;
unsigned long afsr, afar, error_bits;
int reported;
static irqreturn_t sysio_sbus_error_handler(int irq, void *dev_id)
{
struct sbus_bus *sbus = dev_id;
- struct sbus_iommu *iommu = sbus->iommu;
+ struct sbus_info *info = sbus->iommu;
+ struct iommu *iommu = &info->iommu;
unsigned long afsr_reg, afar_reg, reg_base;
unsigned long afsr, afar, error_bits;
int reported;
- reg_base = iommu->sbus_control_reg - 0x2000UL;
+ reg_base = iommu->write_complete_reg - 0x2000UL;
afsr_reg = reg_base + SYSIO_SBUS_AFSR;
afar_reg = reg_base + SYSIO_SBUS_AFAR;
static void __init sysio_register_error_handlers(struct sbus_bus *sbus)
{
- struct sbus_iommu *iommu = sbus->iommu;
- unsigned long reg_base = iommu->sbus_control_reg - 0x2000UL;
+ struct sbus_info *info = sbus->iommu;
+ struct iommu *iommu = &info->iommu;
+ unsigned long reg_base = iommu->write_complete_reg - 0x2000UL;
unsigned int irq;
u64 control;
SYSIO_ECNTRL_CEEN),
reg_base + ECC_CONTROL);
- control = upa_readq(iommu->sbus_control_reg);
+ control = upa_readq(iommu->write_complete_reg);
control |= 0x100UL; /* SBUS Error Interrupt Enable */
- upa_writeq(control, iommu->sbus_control_reg);
+ upa_writeq(control, iommu->write_complete_reg);
}
/* Boot time initialization. */
static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
{
- struct linux_prom64_registers *pr;
+ const struct linux_prom64_registers *pr;
struct device_node *dp;
- struct sbus_iommu *iommu;
- unsigned long regs;
+ struct sbus_info *info;
+ struct iommu *iommu;
+ struct strbuf *strbuf;
+ unsigned long regs, reg_base;
u64 control;
int i;
}
regs = pr->phys_addr;
- iommu = kmalloc(sizeof(*iommu) + SMP_CACHE_BYTES, GFP_ATOMIC);
- if (iommu == NULL) {
- prom_printf("sbus_iommu_init: Fatal error, kmalloc(iommu) failed\n");
+ info = kzalloc(sizeof(*info), GFP_ATOMIC);
+ if (info == NULL) {
+ prom_printf("sbus_iommu_init: Fatal error, "
+ "kmalloc(info) failed\n");
prom_halt();
}
- /* Align on E$ line boundary. */
- iommu = (struct sbus_iommu *)
- (((unsigned long)iommu + (SMP_CACHE_BYTES - 1UL)) &
- ~(SMP_CACHE_BYTES - 1UL));
+ iommu = &info->iommu;
+ strbuf = &info->strbuf;
- memset(iommu, 0, sizeof(*iommu));
+ reg_base = regs + SYSIO_IOMMUREG_BASE;
+ iommu->iommu_control = reg_base + IOMMU_CONTROL;
+ iommu->iommu_tsbbase = reg_base + IOMMU_TSBBASE;
+ iommu->iommu_flush = reg_base + IOMMU_FLUSH;
- /* Setup spinlock. */
- spin_lock_init(&iommu->lock);
+ reg_base = regs + SYSIO_STRBUFREG_BASE;
+ strbuf->strbuf_control = reg_base + STRBUF_CONTROL;
+ strbuf->strbuf_pflush = reg_base + STRBUF_PFLUSH;
+ strbuf->strbuf_fsync = reg_base + STRBUF_FSYNC;
- /* Init register offsets. */
- iommu->iommu_regs = regs + SYSIO_IOMMUREG_BASE;
- iommu->strbuf_regs = regs + SYSIO_STRBUFREG_BASE;
+ strbuf->strbuf_enabled = 1;
+
+ strbuf->strbuf_flushflag = (volatile unsigned long *)
+ ((((unsigned long)&strbuf->__flushflag_buf[0])
+ + 63UL)
+ & ~63UL);
+ strbuf->strbuf_flushflag_pa = (unsigned long)
+ __pa(strbuf->strbuf_flushflag);
/* The SYSIO SBUS control register is used for dummy reads
* in order to ensure write completion.
*/
- iommu->sbus_control_reg = regs + 0x2000UL;
+ iommu->write_complete_reg = regs + 0x2000UL;
/* Link into SYSIO software state. */
- sbus->iommu = iommu;
+ sbus->iommu = info;
printk("SYSIO: UPA portID %x, at %016lx\n",
sbus->portid, regs);
/* Setup for TSB_SIZE=7, TBW_SIZE=0, MMU_DE=1, MMU_EN=1 */
sbus_iommu_table_init(iommu, IO_TSB_SIZE);
- control = upa_readq(iommu->iommu_regs + IOMMU_CONTROL);
+ control = upa_readq(iommu->iommu_control);
control = ((7UL << 16UL) |
(0UL << 2UL) |
(1UL << 1UL) |
(1UL << 0UL));
- upa_writeq(control, iommu->iommu_regs + IOMMU_CONTROL);
+ upa_writeq(control, iommu->iommu_control);
/* Clean out any cruft in the IOMMU using
* diagnostic accesses.
*/
for (i = 0; i < 16; i++) {
- unsigned long dram = iommu->iommu_regs + IOMMU_DRAMDIAG;
- unsigned long tag = iommu->iommu_regs + IOMMU_TAGDIAG;
+ unsigned long dram, tag;
+
+ dram = iommu->iommu_control + (IOMMU_DRAMDIAG - IOMMU_CONTROL);
+ tag = iommu->iommu_control + (IOMMU_TAGDIAG - IOMMU_CONTROL);
dram += (unsigned long)i * 8UL;
tag += (unsigned long)i * 8UL;
upa_writeq(0, dram);
upa_writeq(0, tag);
}
- upa_readq(iommu->sbus_control_reg);
+ upa_readq(iommu->write_complete_reg);
/* Give the TSB to SYSIO. */
- upa_writeq(__pa(iommu->page_table), iommu->iommu_regs + IOMMU_TSBBASE);
+ upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase);
/* Setup streaming buffer, DE=1 SB_EN=1 */
control = (1UL << 1UL) | (1UL << 0UL);
- upa_writeq(control, iommu->strbuf_regs + STRBUF_CONTROL);
+ upa_writeq(control, strbuf->strbuf_control);
/* Clear out the tags using diagnostics. */
for (i = 0; i < 16; i++) {
unsigned long ptag, ltag;
- ptag = iommu->strbuf_regs + STRBUF_PTAGDIAG;
- ltag = iommu->strbuf_regs + STRBUF_LTAGDIAG;
+ ptag = strbuf->strbuf_control +
+ (STRBUF_PTAGDIAG - STRBUF_CONTROL);
+ ltag = strbuf->strbuf_control +
+ (STRBUF_LTAGDIAG - STRBUF_CONTROL);
ptag += (unsigned long)i * 8UL;
ltag += (unsigned long)i * 8UL;
}
/* Enable DVMA arbitration for all devices/slots. */
- control = upa_readq(iommu->sbus_control_reg);
+ control = upa_readq(iommu->write_complete_reg);
control |= 0x3fUL;
- upa_writeq(control, iommu->sbus_control_reg);
+ upa_writeq(control, iommu->write_complete_reg);
/* Now some Xfire specific grot... */
if (this_is_starfire)
void sbus_fill_device_irq(struct sbus_dev *sdev)
{
struct device_node *dp = of_find_node_by_phandle(sdev->prom_node);
- struct linux_prom_irqs *irqs;
+ const struct linux_prom_irqs *irqs;
irqs = of_get_property(dp, "interrupts", NULL);
if (!irqs) {
extern void calibrate_delay(void);
/* Please don't make this stuff initdata!!! --DaveM */
-static unsigned char boot_cpu_id;
+unsigned char boot_cpu_id;
cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE;
cpumask_t phys_cpu_present_map __read_mostly = CPU_MASK_NONE;
struct device_node *dp;
int def;
- /* multiplier and counter set by
- smp_setup_percpu_timer() */
cpu_data(id).udelay_val = loops_per_jiffy;
cpu_find_by_mid(id, &dp);
cpu_data(id).ecache_size, cpu_data(id).ecache_line_size);
}
-static void smp_setup_percpu_timer(void);
+extern void setup_sparc64_timer(void);
static volatile unsigned long callin_flag = 0;
__flush_tlb_all();
- smp_setup_percpu_timer();
+ setup_sparc64_timer();
if (cheetah_pcache_forced_on)
cheetah_enable_pcache();
panic("SMP bolixed\n");
}
-static unsigned long current_tick_offset __read_mostly;
-
/* This tick register synchronization scheme is taken entirely from
* the ia64 port, see arch/ia64/kernel/smpboot.c for details and credit.
*
} else
adj = -delta;
- tick_ops->add_tick(adj, current_tick_offset);
+ tick_ops->add_tick(adj);
}
#if DEBUG_TICK_SYNC
t[i].rt = rt;
preempt_enable();
}
-#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier
-#define prof_counter(__cpu) cpu_data(__cpu).counter
-
-void smp_percpu_timer_interrupt(struct pt_regs *regs)
-{
- unsigned long compare, tick, pstate;
- int cpu = smp_processor_id();
- int user = user_mode(regs);
- struct pt_regs *old_regs;
-
- /*
- * Check for level 14 softint.
- */
- {
- unsigned long tick_mask = tick_ops->softint_mask;
-
- if (!(get_softint() & tick_mask)) {
- extern void handler_irq(int, struct pt_regs *);
-
- handler_irq(14, regs);
- return;
- }
- clear_softint(tick_mask);
- }
-
- old_regs = set_irq_regs(regs);
- do {
- profile_tick(CPU_PROFILING);
- if (!--prof_counter(cpu)) {
- irq_enter();
-
- if (cpu == boot_cpu_id) {
- kstat_this_cpu.irqs[0]++;
- timer_tick_interrupt(regs);
- }
-
- update_process_times(user);
-
- irq_exit();
-
- prof_counter(cpu) = prof_multiplier(cpu);
- }
-
- /* Guarantee that the following sequences execute
- * uninterrupted.
- */
- __asm__ __volatile__("rdpr %%pstate, %0\n\t"
- "wrpr %0, %1, %%pstate"
- : "=r" (pstate)
- : "i" (PSTATE_IE));
-
- compare = tick_ops->add_compare(current_tick_offset);
- tick = tick_ops->get_tick();
-
- /* Restore PSTATE_IE. */
- __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
- : /* no outputs */
- : "r" (pstate));
- } while (time_after_eq(tick, compare));
- set_irq_regs(old_regs);
-}
-
-static void __init smp_setup_percpu_timer(void)
-{
- int cpu = smp_processor_id();
- unsigned long pstate;
-
- prof_counter(cpu) = prof_multiplier(cpu) = 1;
-
- /* Guarantee that the following sequences execute
- * uninterrupted.
- */
- __asm__ __volatile__("rdpr %%pstate, %0\n\t"
- "wrpr %0, %1, %%pstate"
- : "=r" (pstate)
- : "i" (PSTATE_IE));
-
- tick_ops->init_tick(current_tick_offset);
-
- /* Restore PSTATE_IE. */
- __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
- : /* no outputs */
- : "r" (pstate));
-}
-
void __init smp_tick_init(void)
{
boot_cpu_id = hard_smp_processor_id();
- current_tick_offset = timer_tick_offset;
-
- prof_counter(boot_cpu_id) = prof_multiplier(boot_cpu_id) = 1;
}
/* /proc/profile writes can call this, don't __init it please. */
-static DEFINE_SPINLOCK(prof_setup_lock);
-
int setup_profiling_timer(unsigned int multiplier)
{
- unsigned long flags;
- int i;
-
- if ((!multiplier) || (timer_tick_offset / multiplier) < 1000)
- return -EINVAL;
-
- spin_lock_irqsave(&prof_setup_lock, flags);
- for_each_possible_cpu(i)
- prof_multiplier(i) = multiplier;
- current_tick_offset = (timer_tick_offset / multiplier);
- spin_unlock_irqrestore(&prof_setup_lock, flags);
-
- return 0;
+ return -EINVAL;
}
static void __init smp_tune_scheduling(void)
#ifdef CONFIG_PCI
EXPORT_SYMBOL(ebus_chain);
EXPORT_SYMBOL(isa_chain);
-EXPORT_SYMBOL(pci_memspace_mask);
EXPORT_SYMBOL(pci_alloc_consistent);
EXPORT_SYMBOL(pci_free_consistent);
EXPORT_SYMBOL(pci_map_single);
#include <linux/profile.h>
#include <linux/miscdevice.h>
#include <linux/rtc.h>
+#include <linux/kernel_stat.h>
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
#include <asm/oplib.h>
#include <asm/mostek.h>
static int set_rtc_mmss(unsigned long);
#define TICK_PRIV_BIT (1UL << 63)
+#define TICKCMP_IRQ_BIT (1UL << 63)
#ifdef CONFIG_SMP
unsigned long profile_pc(struct pt_regs *regs)
: "g2");
}
-static void tick_init_tick(unsigned long offset)
+static void tick_disable_irq(void)
{
- tick_disable_protection();
-
__asm__ __volatile__(
- " rd %%tick, %%g1\n"
- " andn %%g1, %1, %%g1\n"
" ba,pt %%xcc, 1f\n"
- " add %%g1, %0, %%g1\n"
+ " nop\n"
" .align 64\n"
- "1: wr %%g1, 0x0, %%tick_cmpr\n"
+ "1: wr %0, 0x0, %%tick_cmpr\n"
" rd %%tick_cmpr, %%g0"
: /* no outputs */
- : "r" (offset), "r" (TICK_PRIV_BIT)
- : "g1");
+ : "r" (TICKCMP_IRQ_BIT));
+}
+
+static void tick_init_tick(void)
+{
+ tick_disable_protection();
+ tick_disable_irq();
}
static unsigned long tick_get_tick(void)
return ret & ~TICK_PRIV_BIT;
}
-static unsigned long tick_get_compare(void)
+static int tick_add_compare(unsigned long adj)
{
- unsigned long ret;
+ unsigned long orig_tick, new_tick, new_compare;
- __asm__ __volatile__("rd %%tick_cmpr, %0\n\t"
- "mov %0, %0"
- : "=r" (ret));
+ __asm__ __volatile__("rd %%tick, %0"
+ : "=r" (orig_tick));
- return ret;
-}
-
-static unsigned long tick_add_compare(unsigned long adj)
-{
- unsigned long new_compare;
+ orig_tick &= ~TICKCMP_IRQ_BIT;
/* Workaround for Spitfire Errata (#54 I think??), I discovered
* this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch
* at the start of an I-cache line, and perform a dummy
* read back from %tick_cmpr right after writing to it. -DaveM
*/
- __asm__ __volatile__("rd %%tick_cmpr, %0\n\t"
- "ba,pt %%xcc, 1f\n\t"
- " add %0, %1, %0\n\t"
+ __asm__ __volatile__("ba,pt %%xcc, 1f\n\t"
+ " add %1, %2, %0\n\t"
".align 64\n"
"1:\n\t"
"wr %0, 0, %%tick_cmpr\n\t"
- "rd %%tick_cmpr, %%g0"
- : "=&r" (new_compare)
- : "r" (adj));
+ "rd %%tick_cmpr, %%g0\n\t"
+ : "=r" (new_compare)
+ : "r" (orig_tick), "r" (adj));
- return new_compare;
+ __asm__ __volatile__("rd %%tick, %0"
+ : "=r" (new_tick));
+ new_tick &= ~TICKCMP_IRQ_BIT;
+
+ return ((long)(new_tick - (orig_tick+adj))) > 0L;
}
-static unsigned long tick_add_tick(unsigned long adj, unsigned long offset)
+static unsigned long tick_add_tick(unsigned long adj)
{
- unsigned long new_tick, tmp;
+ unsigned long new_tick;
/* Also need to handle Blackbird bug here too. */
__asm__ __volatile__("rd %%tick, %0\n\t"
- "add %0, %2, %0\n\t"
+ "add %0, %1, %0\n\t"
"wrpr %0, 0, %%tick\n\t"
- "andn %0, %4, %1\n\t"
- "ba,pt %%xcc, 1f\n\t"
- " add %1, %3, %1\n\t"
- ".align 64\n"
- "1:\n\t"
- "wr %1, 0, %%tick_cmpr\n\t"
- "rd %%tick_cmpr, %%g0"
- : "=&r" (new_tick), "=&r" (tmp)
- : "r" (adj), "r" (offset), "r" (TICK_PRIV_BIT));
+ : "=&r" (new_tick)
+ : "r" (adj));
return new_tick;
}
static struct sparc64_tick_ops tick_operations __read_mostly = {
+ .name = "tick",
.init_tick = tick_init_tick,
+ .disable_irq = tick_disable_irq,
.get_tick = tick_get_tick,
- .get_compare = tick_get_compare,
.add_tick = tick_add_tick,
.add_compare = tick_add_compare,
.softint_mask = 1UL << 0,
struct sparc64_tick_ops *tick_ops __read_mostly = &tick_operations;
-static void stick_init_tick(unsigned long offset)
+static void stick_disable_irq(void)
+{
+ __asm__ __volatile__(
+ "wr %0, 0x0, %%asr25"
+ : /* no outputs */
+ : "r" (TICKCMP_IRQ_BIT));
+}
+
+static void stick_init_tick(void)
{
/* Writes to the %tick and %stick register are not
* allowed on sun4v. The Hypervisor controls that
*/
if (tlb_type != hypervisor) {
tick_disable_protection();
+ tick_disable_irq();
/* Let the user get at STICK too. */
__asm__ __volatile__(
: "g1", "g2");
}
- __asm__ __volatile__(
- " rd %%asr24, %%g1\n"
- " andn %%g1, %1, %%g1\n"
- " add %%g1, %0, %%g1\n"
- " wr %%g1, 0x0, %%asr25"
- : /* no outputs */
- : "r" (offset), "r" (TICK_PRIV_BIT)
- : "g1");
+ stick_disable_irq();
}
static unsigned long stick_get_tick(void)
return ret & ~TICK_PRIV_BIT;
}
-static unsigned long stick_get_compare(void)
+static unsigned long stick_add_tick(unsigned long adj)
{
- unsigned long ret;
-
- __asm__ __volatile__("rd %%asr25, %0"
- : "=r" (ret));
-
- return ret;
-}
-
-static unsigned long stick_add_tick(unsigned long adj, unsigned long offset)
-{
- unsigned long new_tick, tmp;
+ unsigned long new_tick;
__asm__ __volatile__("rd %%asr24, %0\n\t"
- "add %0, %2, %0\n\t"
+ "add %0, %1, %0\n\t"
"wr %0, 0, %%asr24\n\t"
- "andn %0, %4, %1\n\t"
- "add %1, %3, %1\n\t"
- "wr %1, 0, %%asr25"
- : "=&r" (new_tick), "=&r" (tmp)
- : "r" (adj), "r" (offset), "r" (TICK_PRIV_BIT));
+ : "=&r" (new_tick)
+ : "r" (adj));
return new_tick;
}
-static unsigned long stick_add_compare(unsigned long adj)
+static int stick_add_compare(unsigned long adj)
{
- unsigned long new_compare;
+ unsigned long orig_tick, new_tick;
- __asm__ __volatile__("rd %%asr25, %0\n\t"
- "add %0, %1, %0\n\t"
- "wr %0, 0, %%asr25"
- : "=&r" (new_compare)
- : "r" (adj));
+ __asm__ __volatile__("rd %%asr24, %0"
+ : "=r" (orig_tick));
+ orig_tick &= ~TICKCMP_IRQ_BIT;
+
+ __asm__ __volatile__("wr %0, 0, %%asr25"
+ : /* no outputs */
+ : "r" (orig_tick + adj));
+
+ __asm__ __volatile__("rd %%asr24, %0"
+ : "=r" (new_tick));
+ new_tick &= ~TICKCMP_IRQ_BIT;
- return new_compare;
+ return ((long)(new_tick - (orig_tick+adj))) > 0L;
}
static struct sparc64_tick_ops stick_operations __read_mostly = {
+ .name = "stick",
.init_tick = stick_init_tick,
+ .disable_irq = stick_disable_irq,
.get_tick = stick_get_tick,
- .get_compare = stick_get_compare,
.add_tick = stick_add_tick,
.add_compare = stick_add_compare,
.softint_mask = 1UL << 16,
return ret;
}
-static unsigned long __hbird_read_compare(void)
-{
- unsigned long low, high;
- unsigned long addr = HBIRD_STICKCMP_ADDR;
-
- __asm__ __volatile__("ldxa [%2] %3, %0\n\t"
- "add %2, 0x8, %2\n\t"
- "ldxa [%2] %3, %1"
- : "=&r" (low), "=&r" (high), "=&r" (addr)
- : "i" (ASI_PHYS_BYPASS_EC_E), "2" (addr));
-
- return (high << 32UL) | low;
-}
-
static void __hbird_write_stick(unsigned long val)
{
unsigned long low = (val & 0xffffffffUL);
"i" (ASI_PHYS_BYPASS_EC_E));
}
-static void hbtick_init_tick(unsigned long offset)
+static void hbtick_disable_irq(void)
{
- unsigned long val;
+ __hbird_write_compare(TICKCMP_IRQ_BIT);
+}
+static void hbtick_init_tick(void)
+{
tick_disable_protection();
/* XXX This seems to be necessary to 'jumpstart' Hummingbird
*/
__hbird_write_stick(__hbird_read_stick());
- val = __hbird_read_stick() & ~TICK_PRIV_BIT;
- __hbird_write_compare(val + offset);
+ hbtick_disable_irq();
}
static unsigned long hbtick_get_tick(void)
return __hbird_read_stick() & ~TICK_PRIV_BIT;
}
-static unsigned long hbtick_get_compare(void)
-{
- return __hbird_read_compare();
-}
-
-static unsigned long hbtick_add_tick(unsigned long adj, unsigned long offset)
+static unsigned long hbtick_add_tick(unsigned long adj)
{
unsigned long val;
val = __hbird_read_stick() + adj;
__hbird_write_stick(val);
- val &= ~TICK_PRIV_BIT;
- __hbird_write_compare(val + offset);
-
return val;
}
-static unsigned long hbtick_add_compare(unsigned long adj)
+static int hbtick_add_compare(unsigned long adj)
{
- unsigned long val = __hbird_read_compare() + adj;
+ unsigned long val = __hbird_read_stick();
+ unsigned long val2;
- val &= ~TICK_PRIV_BIT;
+ val &= ~TICKCMP_IRQ_BIT;
+ val += adj;
__hbird_write_compare(val);
- return val;
+ val2 = __hbird_read_stick() & ~TICKCMP_IRQ_BIT;
+
+ return ((long)(val2 - val)) > 0L;
}
static struct sparc64_tick_ops hbtick_operations __read_mostly = {
+ .name = "hbtick",
.init_tick = hbtick_init_tick,
+ .disable_irq = hbtick_disable_irq,
.get_tick = hbtick_get_tick,
- .get_compare = hbtick_get_compare,
.add_tick = hbtick_add_tick,
.add_compare = hbtick_add_compare,
.softint_mask = 1UL << 0,
};
-/* timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- *
- * NOTE: On SUN5 systems the ticker interrupt comes in using 2
- * interrupts, one at level14 and one with softint bit 0.
- */
-unsigned long timer_tick_offset __read_mostly;
-
static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
#define TICK_SIZE (tick_nsec / 1000)
-static inline void timer_check_rtc(void)
-{
- /* last time the cmos clock got updated */
- static long last_rtc_update;
-
- /* Determine when to update the Mostek clock. */
- if (ntp_synced() &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
- if (set_rtc_mmss(xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- last_rtc_update = xtime.tv_sec - 600;
- /* do it again in 60 s */
- }
-}
+#define USEC_AFTER 500000
+#define USEC_BEFORE 500000
-irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
- unsigned long ticks, compare, pstate;
+static void sync_cmos_clock(unsigned long dummy);
- write_seqlock(&xtime_lock);
+static DEFINE_TIMER(sync_cmos_timer, sync_cmos_clock, 0, 0);
- do {
-#ifndef CONFIG_SMP
- profile_tick(CPU_PROFILING);
- update_process_times(user_mode(get_irq_regs()));
-#endif
- do_timer(1);
+static void sync_cmos_clock(unsigned long dummy)
+{
+ struct timeval now, next;
+ int fail = 1;
- /* Guarantee that the following sequences execute
- * uninterrupted.
+ /*
+ * If we have an externally synchronized Linux clock, then update
+ * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
+ * called as close as possible to 500 ms before the new second starts.
+ * This code is run on a timer. If the clock is set, that timer
+ * may not expire at the correct time. Thus, we adjust...
+ */
+ if (!ntp_synced())
+ /*
+ * Not synced, exit, do not restart a timer (if one is
+ * running, let it run out).
*/
- __asm__ __volatile__("rdpr %%pstate, %0\n\t"
- "wrpr %0, %1, %%pstate"
- : "=r" (pstate)
- : "i" (PSTATE_IE));
+ return;
- compare = tick_ops->add_compare(timer_tick_offset);
- ticks = tick_ops->get_tick();
+ do_gettimeofday(&now);
+ if (now.tv_usec >= USEC_AFTER - ((unsigned) TICK_SIZE) / 2 &&
+ now.tv_usec <= USEC_BEFORE + ((unsigned) TICK_SIZE) / 2)
+ fail = set_rtc_mmss(now.tv_sec);
- /* Restore PSTATE_IE. */
- __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
- : /* no outputs */
- : "r" (pstate));
- } while (time_after_eq(ticks, compare));
+ next.tv_usec = USEC_AFTER - now.tv_usec;
+ if (next.tv_usec <= 0)
+ next.tv_usec += USEC_PER_SEC;
- timer_check_rtc();
+ if (!fail)
+ next.tv_sec = 659;
+ else
+ next.tv_sec = 0;
- write_sequnlock(&xtime_lock);
-
- return IRQ_HANDLED;
+ if (next.tv_usec >= USEC_PER_SEC) {
+ next.tv_sec++;
+ next.tv_usec -= USEC_PER_SEC;
+ }
+ mod_timer(&sync_cmos_timer, jiffies + timeval_to_jiffies(&next));
}
-#ifdef CONFIG_SMP
-void timer_tick_interrupt(struct pt_regs *regs)
+void notify_arch_cmos_timer(void)
{
- write_seqlock(&xtime_lock);
-
- do_timer(1);
-
- timer_check_rtc();
-
- write_sequnlock(&xtime_lock);
+ mod_timer(&sync_cmos_timer, jiffies + 1);
}
-#endif
/* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */
static void __init kick_start_clock(void)
return -EOPNOTSUPP;
}
-static int __init clock_model_matches(char *model)
+static int __init clock_model_matches(const char *model)
{
if (strcmp(model, "mk48t02") &&
strcmp(model, "mk48t08") &&
static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
{
struct device_node *dp = op->node;
- char *model = of_get_property(dp, "model", NULL);
+ const char *model = of_get_property(dp, "model", NULL);
unsigned long size, flags;
void __iomem *regs;
prop = of_find_property(dp, "stick-frequency", NULL);
}
clock = *(unsigned int *) prop->value;
- timer_tick_offset = clock / HZ;
#ifdef CONFIG_SMP
smp_tick_init();
return clock;
}
-static void sparc64_start_timers(void)
-{
- unsigned long pstate;
-
- /* Guarantee that the following sequences execute
- * uninterrupted.
- */
- __asm__ __volatile__("rdpr %%pstate, %0\n\t"
- "wrpr %0, %1, %%pstate"
- : "=r" (pstate)
- : "i" (PSTATE_IE));
-
- tick_ops->init_tick(timer_tick_offset);
-
- /* Restore PSTATE_IE. */
- __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
- : /* no outputs */
- : "r" (pstate));
-}
-
struct freq_table {
unsigned long clock_tick_ref;
unsigned int ref_freq;
#endif /* CONFIG_CPU_FREQ */
-static struct time_interpolator sparc64_cpu_interpolator = {
- .source = TIME_SOURCE_CPU,
- .shift = 16,
- .mask = 0xffffffffffffffffLL
+static int sparc64_next_event(unsigned long delta,
+ struct clock_event_device *evt)
+{
+ return tick_ops->add_compare(delta) ? -ETIME : 0;
+}
+
+static void sparc64_timer_setup(enum clock_event_mode mode,
+ struct clock_event_device *evt)
+{
+ switch (mode) {
+ case CLOCK_EVT_MODE_ONESHOT:
+ break;
+
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ tick_ops->disable_irq();
+ break;
+
+ case CLOCK_EVT_MODE_PERIODIC:
+ case CLOCK_EVT_MODE_UNUSED:
+ WARN_ON(1);
+ break;
+ };
+}
+
+static struct clock_event_device sparc64_clockevent = {
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .set_mode = sparc64_timer_setup,
+ .set_next_event = sparc64_next_event,
+ .rating = 100,
+ .shift = 30,
+ .irq = -1,
};
+static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);
-/* The quotient formula is taken from the IA64 port. */
-#define SPARC64_NSEC_PER_CYC_SHIFT 10UL
-void __init time_init(void)
+void timer_interrupt(int irq, struct pt_regs *regs)
{
- unsigned long clock = sparc64_init_timers();
+ struct pt_regs *old_regs = set_irq_regs(regs);
+ unsigned long tick_mask = tick_ops->softint_mask;
+ int cpu = smp_processor_id();
+ struct clock_event_device *evt = &per_cpu(sparc64_events, cpu);
+
+ clear_softint(tick_mask);
+
+ irq_enter();
- sparc64_cpu_interpolator.frequency = clock;
- register_time_interpolator(&sparc64_cpu_interpolator);
+ kstat_this_cpu.irqs[0]++;
- /* Now that the interpolator is registered, it is
- * safe to start the timer ticking.
+ if (unlikely(!evt->event_handler)) {
+ printk(KERN_WARNING
+ "Spurious SPARC64 timer interrupt on cpu %d\n", cpu);
+ } else
+ evt->event_handler(evt);
+
+ irq_exit();
+
+ set_irq_regs(old_regs);
+}
+
+void __devinit setup_sparc64_timer(void)
+{
+ struct clock_event_device *sevt;
+ unsigned long pstate;
+
+ /* Guarantee that the following sequences execute
+ * uninterrupted.
*/
- sparc64_start_timers();
+ __asm__ __volatile__("rdpr %%pstate, %0\n\t"
+ "wrpr %0, %1, %%pstate"
+ : "=r" (pstate)
+ : "i" (PSTATE_IE));
+
+ tick_ops->init_tick();
+
+ /* Restore PSTATE_IE. */
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate"
+ : /* no outputs */
+ : "r" (pstate));
+
+ sevt = &__get_cpu_var(sparc64_events);
+
+ memcpy(sevt, &sparc64_clockevent, sizeof(*sevt));
+ sevt->cpumask = cpumask_of_cpu(smp_processor_id());
+
+ clockevents_register_device(sevt);
+}
+
+#define SPARC64_NSEC_PER_CYC_SHIFT 32UL
+
+static struct clocksource clocksource_tick = {
+ .rating = 100,
+ .mask = CLOCKSOURCE_MASK(64),
+ .shift = 16,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static void __init setup_clockevent_multiplier(unsigned long hz)
+{
+ unsigned long mult, shift = 32;
+
+ while (1) {
+ mult = div_sc(hz, NSEC_PER_SEC, shift);
+ if (mult && (mult >> 32UL) == 0UL)
+ break;
+
+ shift--;
+ }
+
+ sparc64_clockevent.shift = shift;
+ sparc64_clockevent.mult = mult;
+}
+
+void __init time_init(void)
+{
+ unsigned long clock = sparc64_init_timers();
timer_ticks_per_nsec_quotient =
- (((NSEC_PER_SEC << SPARC64_NSEC_PER_CYC_SHIFT) +
- (clock / 2)) / clock);
+ clocksource_hz2mult(clock, SPARC64_NSEC_PER_CYC_SHIFT);
+
+ clocksource_tick.name = tick_ops->name;
+ clocksource_tick.mult =
+ clocksource_hz2mult(clock,
+ clocksource_tick.shift);
+ clocksource_tick.read = tick_ops->get_tick;
+
+ printk("clocksource: mult[%x] shift[%d]\n",
+ clocksource_tick.mult, clocksource_tick.shift);
+
+ clocksource_register(&clocksource_tick);
+
+ sparc64_clockevent.name = tick_ops->name;
+
+ setup_clockevent_multiplier(clock);
+
+ sparc64_clockevent.max_delta_ns =
+ clockevent_delta2ns(0x7fffffffffffffff, &sparc64_clockevent);
+ sparc64_clockevent.min_delta_ns =
+ clockevent_delta2ns(0xF, &sparc64_clockevent);
+
+ printk("clockevent: mult[%lx] shift[%d]\n",
+ sparc64_clockevent.mult, sparc64_clockevent.shift);
+
+ setup_sparc64_timer();
#ifdef CONFIG_CPU_FREQ
cpufreq_register_notifier(&sparc64_cpufreq_notifier_block,
#define RTC_IS_OPEN 0x01 /* means /dev/rtc is in use */
static unsigned char mini_rtc_status; /* bitmapped status byte. */
-/* months start at 0 now */
-static unsigned char days_in_mo[] =
-{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
#define FEBRUARY 2
#define STARTOFTIME 1970
#define SECDAY 86400L
case RTC_SET_TIME: /* Set the RTC */
{
- int year;
- unsigned char leap_yr;
+ int year, days;
if (!capable(CAP_SYS_TIME))
return -EACCES;
return -EFAULT;
year = wtime.tm_year + 1900;
- leap_yr = ((!(year % 4) && (year % 100)) ||
- !(year % 400));
+ days = month_days[wtime.tm_mon] +
+ ((wtime.tm_mon == 1) && leapyear(year));
- if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) || (wtime.tm_mday < 1))
+ if ((wtime.tm_mon < 0 || wtime.tm_mon > 11) ||
+ (wtime.tm_mday < 1))
return -EINVAL;
- if (wtime.tm_mday < 0 || wtime.tm_mday >
- (days_in_mo[wtime.tm_mon] + ((wtime.tm_mon == 1) && leap_yr)))
+ if (wtime.tm_mday < 0 || wtime.tm_mday > days)
return -EINVAL;
if (wtime.tm_hour < 0 || wtime.tm_hour >= 24 ||
tl0_irq5: TRAP_IRQ(handler_irq, 5)
tl0_irq6: BTRAP(0x46) BTRAP(0x47) BTRAP(0x48) BTRAP(0x49)
tl0_irq10: BTRAP(0x4a) BTRAP(0x4b) BTRAP(0x4c) BTRAP(0x4d)
-#ifndef CONFIG_SMP
-tl0_irq14: TRAP_IRQ(timer_irq, 14)
-#else
-tl0_irq14: TICK_SMP_IRQ
-#endif
+tl0_irq14: TRAP_IRQ(timer_interrupt, 14)
tl0_irq15: TRAP_IRQ(handler_irq, 15)
tl0_resv050: BTRAP(0x50) BTRAP(0x51) BTRAP(0x52) BTRAP(0x53) BTRAP(0x54) BTRAP(0x55)
tl0_resv056: BTRAP(0x56) BTRAP(0x57) BTRAP(0x58) BTRAP(0x59) BTRAP(0x5a) BTRAP(0x5b)
size = 0UL;
base = new_base;
}
- regs[i].phys_addr = base;
- regs[i].reg_size = size;
- }
-
- for (i = 0; i < ents; i++) {
- if (regs[i].reg_size == 0UL) {
- int j;
-
- for (j = i; j < ents - 1; j++) {
- regs[j].phys_addr =
- regs[j+1].phys_addr;
- regs[j].reg_size =
- regs[j+1].reg_size;
- }
-
- ents--;
+ if (size == 0UL) {
+ /* If it is empty, simply get rid of it.
+ * This simplifies the logic of the other
+ * functions that process these arrays.
+ */
+ memmove(®s[i], ®s[i + 1],
+ (ents - i - 1) * sizeof(regs[0]));
i--;
+ ents--;
+ continue;
}
+ regs[i].phys_addr = base;
+ regs[i].reg_size = size;
}
*num_ents = ents;
unsigned long kern_base __read_mostly;
unsigned long kern_size __read_mostly;
-/* get_new_mmu_context() uses "cache + 1". */
-DEFINE_SPINLOCK(ctx_alloc_lock);
-unsigned long tlb_context_cache = CTX_FIRST_VERSION - 1;
-#define CTX_BMAP_SLOTS (1UL << (CTX_NR_BITS - 6))
-unsigned long mmu_context_bmap[CTX_BMAP_SLOTS];
-
-/* References to special section boundaries */
-extern char _start[], _end[];
-
/* Initial ramdisk setup */
extern unsigned long sparc_ramdisk_image64;
extern unsigned int sparc_ramdisk_image;
if (tlb_type == spitfire) {
unsigned long kaddr;
- for (kaddr = start; kaddr < end; kaddr += PAGE_SIZE)
- __flush_icache_page(__get_phys(kaddr));
+ /* This code only runs on Spitfire cpus so this is
+ * why we can assume _PAGE_PADDR_4U.
+ */
+ for (kaddr = start; kaddr < end; kaddr += PAGE_SIZE) {
+ unsigned long paddr, mask = _PAGE_PADDR_4U;
+
+ if (kaddr >= PAGE_OFFSET)
+ paddr = kaddr & mask;
+ else {
+ pgd_t *pgdp = pgd_offset_k(kaddr);
+ pud_t *pudp = pud_offset(pgdp, kaddr);
+ pmd_t *pmdp = pmd_offset(pudp, kaddr);
+ pte_t *ptep = pte_offset_kernel(pmdp, kaddr);
+
+ paddr = pte_val(*ptep) & mask;
+ }
+ __flush_icache_page(paddr);
+ }
}
}
void show_mem(void)
{
- printk("Mem-info:\n");
+ unsigned long total = 0, reserved = 0;
+ unsigned long shared = 0, cached = 0;
+ pg_data_t *pgdat;
+
+ printk(KERN_INFO "Mem-info:\n");
show_free_areas();
- printk("Free swap: %6ldkB\n",
+ printk(KERN_INFO "Free swap: %6ldkB\n",
nr_swap_pages << (PAGE_SHIFT-10));
- printk("%ld pages of RAM\n", num_physpages);
- printk("%lu free pages\n", nr_free_pages());
+ for_each_online_pgdat(pgdat) {
+ unsigned long i, flags;
+
+ pgdat_resize_lock(pgdat, &flags);
+ for (i = 0; i < pgdat->node_spanned_pages; i++) {
+ struct page *page = pgdat_page_nr(pgdat, i);
+ total++;
+ if (PageReserved(page))
+ reserved++;
+ else if (PageSwapCache(page))
+ cached++;
+ else if (page_count(page))
+ shared += page_count(page) - 1;
+ }
+ pgdat_resize_unlock(pgdat, &flags);
+ }
+
+ printk(KERN_INFO "%lu pages of RAM\n", total);
+ printk(KERN_INFO "%lu reserved pages\n", reserved);
+ printk(KERN_INFO "%lu pages shared\n", shared);
+ printk(KERN_INFO "%lu pages swap cached\n", cached);
+
+ printk(KERN_INFO "%lu pages dirty\n",
+ global_page_state(NR_FILE_DIRTY));
+ printk(KERN_INFO "%lu pages writeback\n",
+ global_page_state(NR_WRITEBACK));
+ printk(KERN_INFO "%lu pages mapped\n",
+ global_page_state(NR_FILE_MAPPED));
+ printk(KERN_INFO "%lu pages slab\n",
+ global_page_state(NR_SLAB_RECLAIMABLE) +
+ global_page_state(NR_SLAB_UNRECLAIMABLE));
+ printk(KERN_INFO "%lu pages pagetables\n",
+ global_page_state(NR_PAGETABLE));
}
void mmu_info(struct seq_file *m)
}
#endif /* DCACHE_ALIASING_POSSIBLE */
+/* get_new_mmu_context() uses "cache + 1". */
+DEFINE_SPINLOCK(ctx_alloc_lock);
+unsigned long tlb_context_cache = CTX_FIRST_VERSION - 1;
+#define MAX_CTX_NR (1UL << CTX_NR_BITS)
+#define CTX_BMAP_SLOTS BITS_TO_LONGS(MAX_CTX_NR)
+DECLARE_BITMAP(mmu_context_bmap, MAX_CTX_NR);
+
/* Caller does TLB context flushing on local CPU if necessary.
* The caller also ensures that CTX_VALID(mm->context) is false.
*
smp_new_mmu_context_version();
}
-void sparc_ultra_dump_itlb(void)
-{
- int slot;
-
- if (tlb_type == spitfire) {
- printk ("Contents of itlb: ");
- for (slot = 0; slot < 14; slot++) printk (" ");
- printk ("%2x:%016lx,%016lx\n",
- 0,
- spitfire_get_itlb_tag(0), spitfire_get_itlb_data(0));
- for (slot = 1; slot < 64; slot+=3) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- spitfire_get_itlb_tag(slot), spitfire_get_itlb_data(slot),
- slot+1,
- spitfire_get_itlb_tag(slot+1), spitfire_get_itlb_data(slot+1),
- slot+2,
- spitfire_get_itlb_tag(slot+2), spitfire_get_itlb_data(slot+2));
- }
- } else if (tlb_type == cheetah || tlb_type == cheetah_plus) {
- printk ("Contents of itlb0:\n");
- for (slot = 0; slot < 16; slot+=2) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- cheetah_get_litlb_tag(slot), cheetah_get_litlb_data(slot),
- slot+1,
- cheetah_get_litlb_tag(slot+1), cheetah_get_litlb_data(slot+1));
- }
- printk ("Contents of itlb2:\n");
- for (slot = 0; slot < 128; slot+=2) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- cheetah_get_itlb_tag(slot), cheetah_get_itlb_data(slot),
- slot+1,
- cheetah_get_itlb_tag(slot+1), cheetah_get_itlb_data(slot+1));
- }
- }
-}
-
-void sparc_ultra_dump_dtlb(void)
-{
- int slot;
-
- if (tlb_type == spitfire) {
- printk ("Contents of dtlb: ");
- for (slot = 0; slot < 14; slot++) printk (" ");
- printk ("%2x:%016lx,%016lx\n", 0,
- spitfire_get_dtlb_tag(0), spitfire_get_dtlb_data(0));
- for (slot = 1; slot < 64; slot+=3) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- spitfire_get_dtlb_tag(slot), spitfire_get_dtlb_data(slot),
- slot+1,
- spitfire_get_dtlb_tag(slot+1), spitfire_get_dtlb_data(slot+1),
- slot+2,
- spitfire_get_dtlb_tag(slot+2), spitfire_get_dtlb_data(slot+2));
- }
- } else if (tlb_type == cheetah || tlb_type == cheetah_plus) {
- printk ("Contents of dtlb0:\n");
- for (slot = 0; slot < 16; slot+=2) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- cheetah_get_ldtlb_tag(slot), cheetah_get_ldtlb_data(slot),
- slot+1,
- cheetah_get_ldtlb_tag(slot+1), cheetah_get_ldtlb_data(slot+1));
- }
- printk ("Contents of dtlb2:\n");
- for (slot = 0; slot < 512; slot+=2) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- cheetah_get_dtlb_tag(slot, 2), cheetah_get_dtlb_data(slot, 2),
- slot+1,
- cheetah_get_dtlb_tag(slot+1, 2), cheetah_get_dtlb_data(slot+1, 2));
- }
- if (tlb_type == cheetah_plus) {
- printk ("Contents of dtlb3:\n");
- for (slot = 0; slot < 512; slot+=2) {
- printk ("%2x:%016lx,%016lx %2x:%016lx,%016lx\n",
- slot,
- cheetah_get_dtlb_tag(slot, 3), cheetah_get_dtlb_data(slot, 3),
- slot+1,
- cheetah_get_dtlb_tag(slot+1, 3), cheetah_get_dtlb_data(slot+1, 3));
- }
- }
- }
-}
-
-extern unsigned long cmdline_memory_size;
-
/* Find a free area for the bootmem map, avoiding the kernel image
* and the initial ramdisk.
*/
unsigned long avoid_start, avoid_end, bootmap_size;
int i;
- bootmap_size = ((end_pfn - start_pfn) + 7) / 8;
- bootmap_size = ALIGN(bootmap_size, sizeof(long));
+ bootmap_size = bootmem_bootmap_pages(end_pfn - start_pfn);
+ bootmap_size <<= PAGE_SHIFT;
avoid_start = avoid_end = 0;
#ifdef CONFIG_BLK_DEV_INITRD
}
}
+/* About pages_avail, this is the value we will use to calculate
+ * the zholes_size[] argument given to free_area_init_node(). The
+ * page allocator uses this to calculate nr_kernel_pages,
+ * nr_all_pages and zone->present_pages. On NUMA it is used
+ * to calculate zone->min_unmapped_pages and zone->min_slab_pages.
+ *
+ * So this number should really be set to what the page allocator
+ * actually ends up with. This means:
+ * 1) It should include bootmem map pages, we'll release those.
+ * 2) It should not include the kernel image, except for the
+ * __init sections which we will also release.
+ * 3) It should include the initrd image, since we'll release
+ * that too.
+ */
static unsigned long __init bootmem_init(unsigned long *pages_avail,
unsigned long phys_base)
{
initrd_start, initrd_end);
#endif
reserve_bootmem(initrd_start, size);
- *pages_avail -= PAGE_ALIGN(size) >> PAGE_SHIFT;
initrd_start += PAGE_OFFSET;
initrd_end += PAGE_OFFSET;
reserve_bootmem(kern_base, kern_size);
*pages_avail -= PAGE_ALIGN(kern_size) >> PAGE_SHIFT;
+ /* Add back in the initmem pages. */
+ size = ((unsigned long)(__init_end) & PAGE_MASK) -
+ PAGE_ALIGN((unsigned long)__init_begin);
+ *pages_avail += size >> PAGE_SHIFT;
+
/* Reserve the bootmem map. We do not account for it
* in pages_avail because we will release that memory
* in free_all_bootmem.
(bootmap_pfn << PAGE_SHIFT), size);
#endif
reserve_bootmem((bootmap_pfn << PAGE_SHIFT), size);
- *pages_avail -= PAGE_ALIGN(size) >> PAGE_SHIFT;
for (i = 0; i < pavail_ents; i++) {
unsigned long start_pfn, end_pfn;
#ifdef CONFIG_DEBUG_BOOTMEM
prom_printf("mem_init: Calling free_all_bootmem().\n");
#endif
+
+ /* We subtract one to account for the mem_map_zero page
+ * allocated below.
+ */
totalram_pages = num_physpages = free_all_bootmem() - 1;
/*
return val | paddr;
}
-/*
- * Translate PROM's mapping we capture at boot time into physical address.
- * The second parameter is only set from prom_callback() invocations.
- */
-unsigned long prom_virt_to_phys(unsigned long promva, int *error)
-{
- unsigned long mask;
- int i;
-
- mask = _PAGE_PADDR_4U;
- if (tlb_type == hypervisor)
- mask = _PAGE_PADDR_4V;
-
- for (i = 0; i < prom_trans_ents; i++) {
- struct linux_prom_translation *p = &prom_trans[i];
-
- if (promva >= p->virt &&
- promva < (p->virt + p->size)) {
- unsigned long base = p->data & mask;
-
- if (error)
- *error = 0;
- return base + (promva & (8192 - 1));
- }
- }
- if (error)
- *error = 1;
- return 0UL;
-}
-
-/* XXX We should kill off this ugly thing at so me point. XXX */
-unsigned long sun4u_get_pte(unsigned long addr)
-{
- pgd_t *pgdp;
- pud_t *pudp;
- pmd_t *pmdp;
- pte_t *ptep;
- unsigned long mask = _PAGE_PADDR_4U;
-
- if (tlb_type == hypervisor)
- mask = _PAGE_PADDR_4V;
-
- if (addr >= PAGE_OFFSET)
- return addr & mask;
-
- if ((addr >= LOW_OBP_ADDRESS) && (addr < HI_OBP_ADDRESS))
- return prom_virt_to_phys(addr, NULL);
-
- pgdp = pgd_offset_k(addr);
- pudp = pud_offset(pgdp, addr);
- pmdp = pmd_offset(pudp, addr);
- ptep = pte_offset_kernel(pmdp, addr);
-
- return pte_val(*ptep) & mask;
-}
-
/* If not locked, zap it. */
void __flush_tlb_all(void)
{
*buffer = 0;
if (dp) {
- char *val = of_get_property(dp, "system-board-serial#", &len);
+ const char *val =
+ of_get_property(dp, "system-board-serial#", &len);
if (val && len > 0) {
if (len > sz)
{
*skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
if(*skb == NULL) return(-ENOMEM);
- return(net_recvfrom(fd, (*skb)->mac.raw,
+ return(net_recvfrom(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER));
}
{
*skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
if(*skb == NULL) return(-ENOMEM);
- return(net_recvfrom(fd, (*skb)->mac.raw,
+ return(net_recvfrom(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER));
}
skb->dev = dev;
skb_put(skb, dev->mtu);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
pkt_len = (*lp->read)(lp->fd, &skb, lp);
if (pkt_len > 0) {
{
*skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
if(*skb == NULL) return(-ENOMEM);
- return(pcap_user_read(fd, (*skb)->mac.raw,
+ return(pcap_user_read(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER,
(struct pcap_data *) &lp->user));
}
static int slip_read(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
- return(slip_user_read(fd, (*skb)->mac.raw, (*skb)->dev->mtu,
+ return(slip_user_read(fd, skb_mac_header(*skb), (*skb)->dev->mtu,
(struct slip_data *) &lp->user));
}
static int slirp_read(int fd, struct sk_buff **skb,
struct uml_net_private *lp)
{
- return(slirp_user_read(fd, (*skb)->mac.raw, (*skb)->dev->mtu,
+ return(slirp_user_read(fd, skb_mac_header(*skb), (*skb)->dev->mtu,
(struct slirp_data *) &lp->user));
}
*skb = ether_adjust_skb(*skb, ETH_HEADER_ETHERTAP);
if(*skb == NULL) return(-ENOMEM);
- len = net_recvfrom(fd, (*skb)->mac.raw,
+ len = net_recvfrom(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + 2 * ETH_HEADER_ETHERTAP);
if(len <= 0) return(len);
skb_pull(*skb, 2);
{
*skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
if(*skb == NULL) return(-ENOMEM);
- return(net_read(fd, (*skb)->mac.raw,
+ return(net_read(fd, skb_mac_header(*skb),
(*skb)->dev->mtu + ETH_HEADER_OTHER));
}
gatt_size = (aper_size >> PAGE_SHIFT) * sizeof(u32);
gatt = (void *)__get_free_pages(GFP_KERNEL, get_order(gatt_size));
if (!gatt)
- panic("Cannot allocate GATT table");
+ panic("Cannot allocate GATT table");
+ if (change_page_attr_addr((unsigned long)gatt, gatt_size >> PAGE_SHIFT, PAGE_KERNEL_NOCACHE))
+ panic("Could not set GART PTEs to uncacheable pages");
+ global_flush_tlb();
+
memset(gatt, 0, gatt_size);
agp_gatt_table = gatt;
void *adr = page_address(pg);
if (cpu_has_clflush)
cache_flush_page(adr);
- __flush_tlb_one(adr);
}
+ __flush_tlb_all();
}
static inline void flush_map(struct list_head *l)
# Makefile for Xtensa-specific library files.
#
-lib-y += memcopy.o memset.o checksum.o strcasecmp.o \
+lib-y += memcopy.o memset.o checksum.o \
usercopy.o strncpy_user.o strnlen_user.o
lib-$(CONFIG_PCI) += pci-auto.o
+++ /dev/null
-/*
- * linux/arch/xtensa/lib/strcasecmp.c
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of
- * this archive for more details.
- *
- * Copyright (C) 2002 Tensilica Inc.
- */
-
-#include <linux/string.h>
-
-
-/* We handle nothing here except the C locale. Since this is used in
- only one place, on strings known to contain only 7 bit ASCII, this
- is ok. */
-
-int strcasecmp(const char *a, const char *b)
-{
- int ca, cb;
-
- do {
- ca = *a++ & 0xff;
- cb = *b++ & 0xff;
- if (ca >= 'A' && ca <= 'Z')
- ca += 'a' - 'A';
- if (cb >= 'A' && cb <= 'Z')
- cb += 'a' - 'A';
- } while (ca == cb && ca != '\0');
-
- return ca - cb;
-}
/* Setup skb */
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
pkt_len = lp->tp.read(lp, &skb);
skb_put(skb, pkt_len);
if (!cfq_cfqq_on_rr(cfqq))
cfq_add_cfqq_rr(cfqd, cfqq);
+
+ /*
+ * check if this request is a better next-serve candidate
+ */
+ cfqq->next_rq = cfq_choose_req(cfqd, cfqq->next_rq, rq);
+ BUG_ON(!cfqq->next_rq);
}
static inline void
* expire an async queue immediately if it has used up its slice. idle
* queue always expire after 1 dispatch round.
*/
- if ((!cfq_cfqq_sync(cfqq) &&
+ if (cfqd->busy_queues > 1 && ((!cfq_cfqq_sync(cfqq) &&
cfqd->dispatch_slice >= cfq_prio_to_maxrq(cfqd, cfqq)) ||
- cfq_class_idle(cfqq)) {
+ cfq_class_idle(cfqq))) {
cfqq->slice_end = jiffies + 1;
cfq_slice_expired(cfqd, 0, 0);
}
while ((cfqq = cfq_select_queue(cfqd)) != NULL) {
int max_dispatch;
- /*
- * Don't repeat dispatch from the previous queue.
- */
- if (prev_cfqq == cfqq)
- break;
+ if (cfqd->busy_queues > 1) {
+ /*
+ * Don't repeat dispatch from the previous queue.
+ */
+ if (prev_cfqq == cfqq)
+ break;
- /*
- * So we have dispatched before in this round, if the
- * next queue has idling enabled (must be sync), don't
- * allow it service until the previous have continued.
- */
- if (cfqd->rq_in_driver && cfq_cfqq_idle_window(cfqq))
- break;
+ /*
+ * So we have dispatched before in this round, if the
+ * next queue has idling enabled (must be sync), don't
+ * allow it service until the previous have continued.
+ */
+ if (cfqd->rq_in_driver && cfq_cfqq_idle_window(cfqq))
+ break;
+ }
cfq_clear_cfqq_must_dispatch(cfqq);
cfq_clear_cfqq_wait_request(cfqq);
atomic_set(&cfqq->ref, 0);
cfqq->cfqd = cfqd;
- cfq_mark_cfqq_idle_window(cfqq);
+ if (key != CFQ_KEY_ASYNC)
+ cfq_mark_cfqq_idle_window(cfqq);
+
cfq_mark_cfqq_prio_changed(cfqq);
cfq_mark_cfqq_queue_new(cfqq);
cfq_init_prio_data(cfqq);
if (rq_is_meta(rq))
cfqq->meta_pending++;
- /*
- * check if this request is a better next-serve candidate)) {
- */
- cfqq->next_rq = cfq_choose_req(cfqd, cfqq->next_rq, rq);
- BUG_ON(!cfqq->next_rq);
-
/*
* we never wait for an async request and we don't allow preemption
* of an async request. so just return early
del_timer(&(tz->timer));
} else {
if (timer_pending(&(tz->timer)))
- mod_timer(&(tz->timer), (HZ * sleep_time) / 1000);
+ mod_timer(&(tz->timer),
+ jiffies + (HZ * sleep_time) / 1000);
else {
tz->timer.data = (unsigned long)tz;
tz->timer.function = acpi_thermal_run;
struct ata_port_info *port;
struct pci_dev *host = NULL;
struct sis_chipset *chipset = NULL;
+ struct sis_chipset *sets;
static struct sis_chipset sis_chipsets[] = {
/* We have to find the bridge first */
- for (chipset = &sis_chipsets[0]; chipset->device; chipset++) {
- host = pci_get_device(PCI_VENDOR_ID_SI, chipset->device, NULL);
+ for (sets = &sis_chipsets[0]; sets->device; sets++) {
+ host = pci_get_device(PCI_VENDOR_ID_SI, sets->device, NULL);
if (host != NULL) {
- if (chipset->device == 0x630) { /* SIS630 */
+ chipset = sets; /* Match found */
+ if (sets->device == 0x630) { /* SIS630 */
u8 host_rev;
pci_read_config_byte(host, PCI_REVISION_ID, &host_rev);
if (host_rev >= 0x30) /* 630 ET */
}
/* Look for concealed bridges */
- if (host == NULL) {
+ if (chipset == NULL) {
/* Second check */
u32 idemisc;
u16 trueid;
}
// cast needed as there is no %? for pointer differences
PRINTD (DBG_SKB, "allocated skb at %p, head %p, area %li",
- skb, skb->head, (long) (skb->end - skb->head));
+ skb, skb->head, (long) (skb_end_pointer(skb) - skb->head));
rx.handle = virt_to_bus (skb);
rx.host_address = cpu_to_be32 (virt_to_bus (skb->data));
if (rx_give (dev, &rx, pool))
hdr->vpi = htons(vcc->vpi);
hdr->vci = htons(vcc->vci);
hdr->length = htonl(skb->len);
- memcpy(skb_put(new_skb,skb->len),skb->data,skb->len);
+ skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
if (vcc->pop) vcc->pop(vcc,skb);
else dev_kfree_skb(skb);
out_vcc->push(out_vcc,new_skb);
goto done;
}
__net_timestamp(new_skb);
- memcpy(skb_put(new_skb,skb->len),skb->data,skb->len);
+ skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
out_vcc->push(out_vcc,new_skb);
atomic_inc(&vcc->stats->tx);
atomic_inc(&out_vcc->stats->rx);
.ops = &atmtcp_c_dev_ops,
.type = "atmtcp",
.number = 999,
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(atmtcp_control_dev.lock)
};
return 0;
}
skb_put(skb,length);
- skb_set_timestamp(skb, &eni_vcc->timestamp);
+ skb->tstamp = eni_vcc->timestamp;
DPRINTK("got len %ld\n",length);
if (do_rx_dma(vcc,skb,1,length >> 2,length >> 2)) return 1;
eni_vcc->rxing++;
DPRINTK("Grr, servicing VCC %ld twice\n",vci);
continue;
}
- do_gettimeofday(&ENI_VCC(vcc)->timestamp);
+ ENI_VCC(vcc)->timestamp = ktime_get_real();
ENI_VCC(vcc)->next = NULL;
if (vcc->qos.rxtp.traffic_class == ATM_CBR) {
if (eni_dev->fast)
int rxing; /* number of pending PDUs */
int servicing; /* number of waiting VCs (0 or 1) */
int txing; /* number of pending TX bytes */
- struct timeval timestamp; /* for RX timing */
+ ktime_t timestamp; /* for RX timing */
struct atm_vcc *next; /* next pending RX */
struct sk_buff *last; /* last PDU being DMAed (used to carry
discard information) */
/*
- $Id: fore200e.c,v 1.5 2000/04/14 10:10:34 davem Exp $
-
A FORE Systems 200E-series driver for ATM on Linux.
Christophe Lizzi (lizzi@cnam.fr), October 1999-March 2003.
/* pseudo-CBR bandwidth requested? */
if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) {
- down(&fore200e->rate_sf);
+ mutex_lock(&fore200e->rate_mtx);
if (fore200e->available_cell_rate < vcc->qos.txtp.max_pcr) {
- up(&fore200e->rate_sf);
+ mutex_unlock(&fore200e->rate_mtx);
kfree(fore200e_vcc);
vc_map->vcc = NULL;
/* reserve bandwidth */
fore200e->available_cell_rate -= vcc->qos.txtp.max_pcr;
- up(&fore200e->rate_sf);
+ mutex_unlock(&fore200e->rate_mtx);
}
vcc->itf = vcc->dev->number;
/* release reserved bandwidth, if any */
if ((vcc->qos.txtp.traffic_class == ATM_CBR) && (vcc->qos.txtp.max_pcr > 0)) {
- down(&fore200e->rate_sf);
+ mutex_lock(&fore200e->rate_mtx);
fore200e->available_cell_rate += vcc->qos.txtp.max_pcr;
- up(&fore200e->rate_sf);
+ mutex_unlock(&fore200e->rate_mtx);
clear_bit(ATM_VF_HASQOS, &vcc->flags);
}
if ((qos->txtp.traffic_class == ATM_CBR) && (qos->txtp.max_pcr > 0)) {
- down(&fore200e->rate_sf);
+ mutex_lock(&fore200e->rate_mtx);
if (fore200e->available_cell_rate + vcc->qos.txtp.max_pcr < qos->txtp.max_pcr) {
- up(&fore200e->rate_sf);
+ mutex_unlock(&fore200e->rate_mtx);
return -EAGAIN;
}
fore200e->available_cell_rate += vcc->qos.txtp.max_pcr;
fore200e->available_cell_rate -= qos->txtp.max_pcr;
- up(&fore200e->rate_sf);
+ mutex_unlock(&fore200e->rate_mtx);
memcpy(&vcc->qos, qos, sizeof(struct atm_qos));
DPRINTK(2, "device %s being initialized\n", fore200e->name);
- init_MUTEX(&fore200e->rate_sf);
+ mutex_init(&fore200e->rate_mtx);
spin_lock_init(&fore200e->q_lock);
cpq = fore200e->cp_queues = fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET;
struct stats* stats; /* last snapshot of the stats */
- struct semaphore rate_sf; /* protects rate reservation ops */
+ struct mutex rate_mtx; /* protects rate reservation ops */
spinlock_t q_lock; /* protects queue ops */
#ifdef FORE200E_USE_TASKLET
struct tasklet_struct tx_tasklet; /* performs tx interrupt work */
case ATM_AAL0:
/* 2.10.1.5 raw cell receive */
skb->len = ATM_AAL0_SDU;
- skb->tail = skb->data + skb->len;
+ skb_set_tail_pointer(skb, skb->len);
break;
case ATM_AAL5:
/* 2.10.1.2 aal5 receive */
skb->len = AAL5_LEN(skb->data, he_vcc->pdu_len);
- skb->tail = skb->data + skb->len;
+ skb_set_tail_pointer(skb, skb->len);
#ifdef USE_CHECKSUM_HW
if (vcc->vpi == 0 && vcc->vci >= ATM_NOT_RSV_VCI) {
skb->ip_summed = CHECKSUM_COMPLETE;
vcc = vc->rx_vcc;
pci_dma_sync_single_for_cpu(card->pcidev, IDT77252_PRV_PADDR(skb),
- skb->end - skb->data, PCI_DMA_FROMDEVICE);
+ skb_end_pointer(skb) - skb->data,
+ PCI_DMA_FROMDEVICE);
if ((vcc->qos.aal == ATM_AAL0) ||
(vcc->qos.aal == ATM_AAL34)) {
}
pci_unmap_single(card->pcidev, IDT77252_PRV_PADDR(skb),
- skb->end - skb->data, PCI_DMA_FROMDEVICE);
+ skb_end_pointer(skb) - skb->data,
+ PCI_DMA_FROMDEVICE);
sb_pool_remove(card, skb);
skb_trim(skb, len);
tail = readl(SAR_REG_RAWCT);
pci_dma_sync_single_for_cpu(card->pcidev, IDT77252_PRV_PADDR(queue),
- queue->end - queue->head - 16,
+ skb_end_pointer(queue) - queue->head - 16,
PCI_DMA_FROMDEVICE);
while (head != tail) {
queue = card->raw_cell_head;
pci_dma_sync_single_for_cpu(card->pcidev,
IDT77252_PRV_PADDR(queue),
- queue->end - queue->data,
+ (skb_end_pointer(queue) -
+ queue->data),
PCI_DMA_FROMDEVICE);
} else {
card->raw_cell_head = NULL;
u32 handle;
u32 addr;
- skb->data = skb->tail = skb->head;
+ skb->data = skb->head;
+ skb_reset_tail_pointer(skb);
skb->len = 0;
skb_reserve(skb, 16);
skb_put(skb, SAR_FB_SIZE_3);
break;
default:
- dev_kfree_skb(skb);
return -1;
}
}
paddr = pci_map_single(card->pcidev, skb->data,
- skb->end - skb->data,
+ skb_end_pointer(skb) - skb->data,
PCI_DMA_FROMDEVICE);
IDT77252_PRV_PADDR(skb) = paddr;
outunmap:
pci_unmap_single(card->pcidev, IDT77252_PRV_PADDR(skb),
- skb->end - skb->data, PCI_DMA_FROMDEVICE);
+ skb_end_pointer(skb) - skb->data, PCI_DMA_FROMDEVICE);
handle = IDT77252_PRV_POOL(skb);
card->sbpool[POOL_QUEUE(handle)].skb[POOL_INDEX(handle)] = NULL;
int err;
pci_dma_sync_single_for_device(card->pcidev, IDT77252_PRV_PADDR(skb),
- skb->end - skb->data, PCI_DMA_FROMDEVICE);
+ skb_end_pointer(skb) - skb->data,
+ PCI_DMA_FROMDEVICE);
err = push_rx_skb(card, skb, POOL_QUEUE(handle));
if (err) {
pci_unmap_single(card->pcidev, IDT77252_PRV_PADDR(skb),
- skb->end - skb->data, PCI_DMA_FROMDEVICE);
+ skb_end_pointer(skb) - skb->data,
+ PCI_DMA_FROMDEVICE);
sb_pool_remove(card, skb);
dev_kfree_skb(skb);
}
if (skb) {
pci_unmap_single(card->pcidev,
IDT77252_PRV_PADDR(skb),
- skb->end - skb->data,
+ (skb_end_pointer(skb) -
+ skb->data),
PCI_DMA_FROMDEVICE);
card->sbpool[i].skb[j] = NULL;
dev_kfree_skb(skb);
if (i == 1 && ns_rsqe_eopdu(rsqe))
*((u32 *) sb->data) |= 0x00000002;
skb_put(sb, NS_AAL0_HEADER);
- memcpy(sb->tail, cell, ATM_CELL_PAYLOAD);
+ memcpy(skb_tail_pointer(sb), cell, ATM_CELL_PAYLOAD);
skb_put(sb, ATM_CELL_PAYLOAD);
ATM_SKB(sb)->vcc = vcc;
__net_timestamp(sb);
vc->rx_iov = iovb;
NS_SKB(iovb)->iovcnt = 0;
iovb->len = 0;
- iovb->tail = iovb->data = iovb->head;
+ iovb->data = iovb->head;
+ skb_reset_tail_pointer(iovb);
NS_SKB(iovb)->vcc = vcc;
/* IMPORTANT: a pointer to the sk_buff containing the small or large
buffer is stored as iovec base, NOT a pointer to the
recycle_iovec_rx_bufs(card, (struct iovec *) iovb->data, NS_MAX_IOVECS);
NS_SKB(iovb)->iovcnt = 0;
iovb->len = 0;
- iovb->tail = iovb->data = iovb->head;
+ iovb->data = iovb->head;
+ skb_reset_tail_pointer(iovb);
NS_SKB(iovb)->vcc = vcc;
}
iov = &((struct iovec *) iovb->data)[NS_SKB(iovb)->iovcnt++];
skb->destructor = ns_lb_destructor;
#endif /* NS_USE_DESTRUCTORS */
skb_push(skb, NS_SMBUFSIZE);
- memcpy(skb->data, sb->data, NS_SMBUFSIZE);
+ skb_copy_from_linear_data(sb, skb->data, NS_SMBUFSIZE);
skb_put(skb, len - NS_SMBUFSIZE);
ATM_SKB(skb)->vcc = vcc;
__net_timestamp(skb);
{
/* Copy the small buffer to the huge buffer */
sb = (struct sk_buff *) iov->iov_base;
- memcpy(hb->data, sb->data, iov->iov_len);
+ skb_copy_from_linear_data(sb, hb->data, iov->iov_len);
skb_put(hb, iov->iov_len);
remaining = len - iov->iov_len;
iov++;
{
lb = (struct sk_buff *) iov->iov_base;
tocopy = min_t(int, remaining, iov->iov_len);
- memcpy(hb->tail, lb->data, tocopy);
+ skb_copy_from_linear_data(lb, skb_tail_pointer(hb), tocopy);
skb_put(hb, tocopy);
iov++;
remaining -= tocopy;
__be32 tag;
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct aoe_hdr *aoe_hdr(const struct sk_buff *skb)
+{
+ return (struct aoe_hdr *)skb_mac_header(skb);
+}
+#endif
+
struct aoe_atahdr {
unsigned char aflags;
unsigned char errfeat;
skb = alloc_skb(len, GFP_ATOMIC);
if (skb) {
- skb->nh.raw = skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
skb->protocol = __constant_htons(ETH_P_AOE);
skb->priority = 0;
skb->next = skb->prev = NULL;
/* initialize the headers & frame */
skb = f->skb;
- h = (struct aoe_hdr *) skb->mac.raw;
+ h = aoe_hdr(skb);
ah = (struct aoe_atahdr *) (h+1);
skb_put(skb, sizeof *h + sizeof *ah);
memset(h, 0, skb->len);
skb->dev = ifp;
if (sl_tail == NULL)
sl_tail = skb;
- h = (struct aoe_hdr *) skb->mac.raw;
+ h = aoe_hdr(skb);
memset(h, 0, sizeof *h + sizeof *ch);
memset(h->dst, 0xff, sizeof h->dst);
aoechr_error(buf);
skb = f->skb;
- h = (struct aoe_hdr *) skb->mac.raw;
+ h = aoe_hdr(skb);
ah = (struct aoe_atahdr *) (h+1);
f->tag = n;
h->tag = cpu_to_be32(n);
char ebuf[128];
u16 aoemajor;
- hin = (struct aoe_hdr *) skb->mac.raw;
+ hin = aoe_hdr(skb);
aoemajor = be16_to_cpu(get_unaligned(&hin->major));
d = aoedev_by_aoeaddr(aoemajor, hin->minor);
if (d == NULL) {
calc_rttavg(d, tsince(f->tag));
ahin = (struct aoe_atahdr *) (hin+1);
- hout = (struct aoe_hdr *) f->skb->mac.raw;
+ hout = aoe_hdr(f->skb);
ahout = (struct aoe_atahdr *) (hout+1);
buf = f->buf;
/* initialize the headers & frame */
skb = f->skb;
- h = (struct aoe_hdr *) skb->mac.raw;
+ h = aoe_hdr(skb);
ah = (struct aoe_atahdr *) (h+1);
skb_put(skb, sizeof *h + sizeof *ah);
memset(h, 0, skb->len);
enum { MAXFRAMES = 16 };
u16 n;
- h = (struct aoe_hdr *) skb->mac.raw;
+ h = aoe_hdr(skb);
ch = (struct aoe_cfghdr *) (h+1);
/*
goto exit;
skb_push(skb, ETH_HLEN); /* (1) */
- h = (struct aoe_hdr *) skb->mac.raw;
+ h = aoe_hdr(skb);
n = be32_to_cpu(get_unaligned(&h->tag));
if ((h->verfl & AOEFL_RSP) == 0 || (n & 1<<31))
goto exit;
#include <linux/blkdev.h>
#include <asm/uaccess.h>
-static spinlock_t pcd_lock;
+static DEFINE_SPINLOCK(pcd_lock);
module_param(verbose, bool, 0644);
module_param(major, int, 0);
#include <linux/blkpg.h>
#include <asm/uaccess.h>
-static spinlock_t pf_spin_lock;
+static DEFINE_SPINLOCK(pf_spin_lock);
module_param(verbose, bool, 0644);
module_param(major, int, 0);
rq->cmd_flags |= REQ_QUIET;
blk_execute_rq(rq->q, pd->bdev->bd_disk, rq, 0);
- ret = rq->errors;
+ if (rq->errors)
+ ret = -EIO;
out:
blk_put_request(rq);
return ret;
buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
memcpy(skb_put(nskb, 3), buf, 3);
- memcpy(skb_put(nskb, size), skb->data + sent, size);
+ skb_copy_from_linear_data_offset(skb, sent, skb_put(nskb, size), size);
sent += size;
count -= size;
switch (info->rx_state) {
case RECV_WAIT_EVENT_HEADER:
- eh = (struct hci_event_hdr *)(info->rx_skb->data);
+ eh = hci_event_hdr(info->rx_skb);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = eh->plen;
break;
case RECV_WAIT_ACL_HEADER:
- ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+ ah = hci_acl_hdr(info->rx_skb);
dlen = __le16_to_cpu(ah->dlen);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = dlen;
break;
case RECV_WAIT_SCO_HEADER:
- sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+ sh = hci_sco_hdr(info->rx_skb);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = sh->dlen;
break;
cr = (struct usb_ctrlrequest *) urb->setup_packet;
cr->wLength = __cpu_to_le16(skb->len);
- memcpy(urb->transfer_buffer, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, urb->transfer_buffer, skb->len);
urb->transfer_buffer_length = skb->len;
err = usb_submit_urb(urb, GFP_ATOMIC);
skb = skb_dequeue(&data->tx_queue);
if (skb) {
- memcpy(urb->transfer_buffer, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, urb->transfer_buffer, skb->len);
urb->transfer_buffer_length = skb->len;
err = usb_submit_urb(urb, GFP_ATOMIC);
switch (info->rx_state) {
case RECV_WAIT_EVENT_HEADER:
- eh = (struct hci_event_hdr *)(info->rx_skb->data);
+ eh = hci_event_hdr(info->rx_skb);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = eh->plen;
break;
case RECV_WAIT_ACL_HEADER:
- ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+ ah = hci_acl_hdr(info->rx_skb);
dlen = __le16_to_cpu(ah->dlen);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = dlen;
break;
case RECV_WAIT_SCO_HEADER:
- sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+ sh = hci_sco_hdr(info->rx_skb);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = sh->dlen;
break;
switch (info->rx_state) {
case RECV_WAIT_EVENT_HEADER:
- eh = (struct hci_event_hdr *)(info->rx_skb->data);
+ eh = hci_event_hdr(info->rx_skb);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = eh->plen;
break;
case RECV_WAIT_ACL_HEADER:
- ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+ ah = hci_acl_hdr(info->rx_skb);
dlen = __le16_to_cpu(ah->dlen);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = dlen;
break;
case RECV_WAIT_SCO_HEADER:
- sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+ sh = hci_sco_hdr(info->rx_skb);
info->rx_state = RECV_WAIT_DATA;
info->rx_count = sh->dlen;
break;
return -ENOMEM;
skb_reserve(s, NSHL);
- memcpy(skb_put(s, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(s, skb->len), skb->len);
if (skb->len & 0x0001)
*skb_put(s, 1) = 0; /* PAD */
continue;
case H4_W4_EVENT_HDR:
- eh = (struct hci_event_hdr *) h4->rx_skb->data;
+ eh = hci_event_hdr(h4->rx_skb);
BT_DBG("Event header: evt 0x%2.2x plen %d", eh->evt, eh->plen);
continue;
case H4_W4_ACL_HDR:
- ah = (struct hci_acl_hdr *) h4->rx_skb->data;
+ ah = hci_acl_hdr(h4->rx_skb);
dlen = __le16_to_cpu(ah->dlen);
BT_DBG("ACL header: dlen %d", dlen);
continue;
case H4_W4_SCO_HDR:
- sh = (struct hci_sco_hdr *) h4->rx_skb->data;
+ sh = hci_sco_hdr(h4->rx_skb);
BT_DBG("SCO header: dlen %d", sh->dlen);
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
* Caller should use TIOCGICOUNT to see which one it was
*/
- case TIOCMIWAIT: {
- DECLARE_WAITQUEUE(wait, current);
- int ret;
+ case TIOCMIWAIT:
+ spin_lock_irqsave(&info->slock, flags);
+ cnow = info->icount; /* note the counters on entry */
+ spin_unlock_irqrestore(&info->slock, flags);
+
+ wait_event_interruptible(info->delta_msr_wait, ({
+ cprev = cnow;
spin_lock_irqsave(&info->slock, flags);
- cprev = info->icount; /* note the counters on entry */
+ cnow = info->icount; /* atomic copy */
spin_unlock_irqrestore(&info->slock, flags);
- add_wait_queue(&info->delta_msr_wait, &wait);
- while (1) {
- spin_lock_irqsave(&info->slock, flags);
- cnow = info->icount; /* atomic copy */
- spin_unlock_irqrestore(&info->slock, flags);
-
- set_current_state(TASK_INTERRUPTIBLE);
- if (((arg & TIOCM_RNG) &&
- (cnow.rng != cprev.rng)) ||
- ((arg & TIOCM_DSR) &&
- (cnow.dsr != cprev.dsr)) ||
- ((arg & TIOCM_CD) &&
- (cnow.dcd != cprev.dcd)) ||
- ((arg & TIOCM_CTS) &&
- (cnow.cts != cprev.cts))) {
- ret = 0;
- break;
- }
- /* see if a signal did it */
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- cprev = cnow;
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&info->delta_msr_wait, &wait);
- break;
- }
- /* NOTREACHED */
+ ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
+ ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
+ ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
+ ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts));
+ }));
+ break;
/*
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
* Return: write counters to the user passed counter struct
* (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
* Caller should use TIOCGICOUNT to see which one it was
*/
- case TIOCMIWAIT: {
- DECLARE_WAITQUEUE(wait, current);
- int ret;
+ case TIOCMIWAIT:
spin_lock_irqsave(&info->slock, flags);
- cprev = info->icount; /* note the counters on entry */
+ cnow = info->icount; /* note the counters on entry */
spin_unlock_irqrestore(&info->slock, flags);
- add_wait_queue(&info->delta_msr_wait, &wait);
- while (1) {
+ wait_event_interruptible(info->delta_msr_wait, ({
+ cprev = cnow;
spin_lock_irqsave(&info->slock, flags);
cnow = info->icount; /* atomic copy */
spin_unlock_irqrestore(&info->slock, flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (((arg & TIOCM_RNG) &&
- (cnow.rng != cprev.rng)) ||
- ((arg & TIOCM_DSR) &&
- (cnow.dsr != cprev.dsr)) ||
- ((arg & TIOCM_CD) &&
- (cnow.dcd != cprev.dcd)) ||
- ((arg & TIOCM_CTS) &&
- (cnow.cts != cprev.cts))) {
- ret = 0;
- break;
- }
- /* see if a signal did it */
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- break;
- }
- cprev = cnow;
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&info->delta_msr_wait, &wait);
+ ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
+ ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
+ ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
+ ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts));
+ }));
break;
- }
- /* NOTREACHED */
/*
* Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
* Return: write counters to the user passed counter struct
port->mon_data.rxcnt += cnt;
port->mon_data.up_rxcnt += cnt;
+ /*
+ * We are called from an interrupt context with &port->slock
+ * being held. Drop it temporarily in order to prevent
+ * recursive locking.
+ */
+ spin_unlock(&port->slock);
tty_flip_buffer_push(tty);
+ spin_lock(&port->slock);
}
static void mxser_transmit_chars(struct mxser_port *port)
netif_stop_queue(dev);
/* copy data to device buffers */
- memcpy(info->tx_buf, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, info->tx_buf, skb->len);
info->tx_get = 0;
info->tx_put = info->tx_count = skb->len;
*/
static void init_std_data(struct entropy_store *r)
{
- struct timeval tv;
+ ktime_t now;
unsigned long flags;
spin_lock_irqsave(&r->lock, flags);
r->entropy_count = 0;
spin_unlock_irqrestore(&r->lock, flags);
- do_gettimeofday(&tv);
- add_entropy_words(r, (__u32 *)&tv, sizeof(tv)/4);
+ now = ktime_get_real();
+ add_entropy_words(r, (__u32 *)&now, sizeof(now)/4);
add_entropy_words(r, (__u32 *)utsname(),
sizeof(*(utsname()))/4);
}
return;
/*
- * If kmalloc returns null, we just won't use that entropy
+ * If kzalloc returns null, we just won't use that entropy
* source.
*/
- state = kmalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
- if (state) {
- memset(state, 0, sizeof(struct timer_rand_state));
+ state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
+ if (state)
irq_timer_state[irq] = state;
- }
}
#ifdef CONFIG_BLOCK
struct timer_rand_state *state;
/*
- * If kmalloc returns null, we just won't use that entropy
+ * If kzalloc returns null, we just won't use that entropy
* source.
*/
- state = kmalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
- if (state) {
- memset(state, 0, sizeof(struct timer_rand_state));
+ state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
+ if (state)
disk->random = state;
- }
}
#endif
__u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr,
__be16 sport, __be16 dport)
{
- struct timeval tv;
__u32 seq;
__u32 hash[12];
struct keydata *keyptr = get_keyptr();
seq = twothirdsMD4Transform((const __u32 *)daddr, hash) & HASH_MASK;
seq += keyptr->count;
- do_gettimeofday(&tv);
- seq += tv.tv_usec + tv.tv_sec * 1000000;
+ seq += ktime_get_real().tv64;
return seq;
}
__u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr,
__be16 sport, __be16 dport)
{
- struct timeval tv;
__u32 seq;
__u32 hash[4];
struct keydata *keyptr = get_keyptr();
* As close as possible to RFC 793, which
* suggests using a 250 kHz clock.
* Further reading shows this assumes 2 Mb/s networks.
- * For 10 Mb/s Ethernet, a 1 MHz clock is appropriate.
+ * For 10 Gb/s Ethernet, a 1 GHz clock is appropriate.
* That's funny, Linux has one built in! Use it!
* (Networks are faster now - should this be increased?)
*/
- do_gettimeofday(&tv);
- seq += tv.tv_usec + tv.tv_sec * 1000000;
+ seq += ktime_get_real().tv64;
#if 0
printk("init_seq(%lx, %lx, %d, %d) = %d\n",
saddr, daddr, sport, dport, seq);
return seq;
}
-EXPORT_SYMBOL(secure_tcp_sequence_number);
-
/* Generate secure starting point for ephemeral IPV4 transport port search */
u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport)
{
u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr,
__be16 sport, __be16 dport)
{
- struct timeval tv;
u64 seq;
__u32 hash[4];
struct keydata *keyptr = get_keyptr();
seq = half_md4_transform(hash, keyptr->secret);
seq |= ((u64)keyptr->count) << (32 - HASH_BITS);
- do_gettimeofday(&tv);
- seq += tv.tv_usec + tv.tv_sec * 1000000;
+ seq += ktime_get_real().tv64;
seq &= (1ull << 48) - 1;
#if 0
printk("dccp init_seq(%lx, %lx, %d, %d) = %d\n",
skb = skb_get(__skb);
if (skb->len >= NLMSG_SPACE(0)) {
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(struct cn_msg) ||
skb->len < nlh->nlmsg_len ||
dev->nls = netlink_kernel_create(NETLINK_CONNECTOR,
CN_NETLINK_USERS + 0xf,
- dev->input, THIS_MODULE);
+ dev->input, NULL, THIS_MODULE);
if (!dev->nls)
return -EIO;
* ISA constants
*/
-#define REGION_ALIGNMENT ~7
-#define REGION_OFFSET 5
-#define REGION_LENGTH 2
+#define IOREGION_ALIGNMENT ~7
+#define IOREGION_OFFSET 5
+#define IOREGION_LENGTH 2
#define ADDR_REG_OFFSET 5
#define DATA_REG_OFFSET 6
u8 fan4pin, fan5pin;
int i, err = 0;
- if (!request_region(address + REGION_OFFSET, REGION_LENGTH,
+ if (!request_region(address + IOREGION_OFFSET, IOREGION_LENGTH,
w83627ehf_driver.driver.name)) {
err = -EBUSY;
goto exit;
exit_free:
kfree(data);
exit_release:
- release_region(address + REGION_OFFSET, REGION_LENGTH);
+ release_region(address + IOREGION_OFFSET, IOREGION_LENGTH);
exit:
return err;
}
if ((err = i2c_detach_client(client)))
return err;
- release_region(client->addr + REGION_OFFSET, REGION_LENGTH);
+ release_region(client->addr + IOREGION_OFFSET, IOREGION_LENGTH);
kfree(data);
return 0;
superio_select(W83627EHF_LD_HWM);
val = (superio_inb(SIO_REG_ADDR) << 8)
| superio_inb(SIO_REG_ADDR + 1);
- *addr = val & REGION_ALIGNMENT;
+ *addr = val & IOREGION_ALIGNMENT;
if (*addr == 0) {
superio_exit();
return -ENODEV;
config IDE_MAX_HWIFS
int "Max IDE interfaces"
depends on ALPHA || SUPERH || IA64 || EMBEDDED
+ range 1 10
default 4
help
This is the maximum number of IDE hardware interfaces that will
static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = {
{ 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ 0, },
};
MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl);
/*
- * linux/drivers/ide/pci/hpt366.c Version 1.01 Dec 23, 2006
+ * linux/drivers/ide/pci/hpt366.c Version 1.02 Apr 18, 2007
*
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
* Portions Copyright (C) 2003 Red Hat Inc
- * Portions Copyright (C) 2005-2006 MontaVista Software, Inc.
+ * Portions Copyright (C) 2005-2007 MontaVista Software, Inc.
*
* Thanks to HighPoint Technologies for their assistance, and hardware.
* Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
.chip_type = HPT302N,
.max_mode = HPT302_ALLOW_ATA133_6 ? 4 : 3,
.dpll_clk = 77,
+ .settings = hpt37x_settings
};
static struct hpt_info hpt371n __devinitdata = {
struct eth1394hdr *eth;
unsigned char *rawp;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull (skb, ETH1394_HLEN);
eth = eth1394_hdr(skb);
if (memcmp(eth->h_dest, dev->broadcast, ETH1394_ALEN) == 0 ||
proto == htons(ETH_P_ARP) ||
(proto == htons(ETH_P_IP) &&
- IN_MULTICAST(ntohl(skb->nh.iph->daddr)))) {
+ IN_MULTICAST(ntohl(ip_hdr(skb)->daddr)))) {
tx_type = ETH1394_GASP;
dest_node = LOCAL_BUS | ALL_NODES;
max_payload = priv->bc_maxpayload - ETHER1394_GASP_OVERHEAD;
static inline struct eth1394hdr *eth1394_hdr(const struct sk_buff *skb)
{
- return (struct eth1394hdr *)skb->mac.raw;
+ return (struct eth1394hdr *)skb_mac_header(skb);
}
#endif
}
/* Setup the skb for reuse since we're dropping this pkt */
- elem->skb->tail = elem->skb->data = elem->skb->head;
+ elem->skb->data = elem->skb->head;
+ skb_reset_tail_pointer(elem->skb);
/* Zero out the rxp hdr in the sk_buff */
memset(elem->skb->data, 0, sizeof(*rxp_hdr));
* "sizeof(struct c2_rxp_hdr)".
*/
skb->data += sizeof(*rxp_hdr);
- skb->tail = skb->data + buflen;
+ skb_set_tail_pointer(skb, buflen);
skb->len = buflen;
- skb->dev = netdev;
skb->protocol = eth_type_trans(skb, netdev);
netif_rx(skb);
BUG_ON(skb_cloned(skb));
mpalen = sizeof(*mpa) + ep->plen;
- if (skb->data + mpalen + sizeof(*req) > skb->end) {
+ if (skb->data + mpalen + sizeof(*req) > skb_end_pointer(skb)) {
kfree_skb(skb);
skb=alloc_skb(mpalen + sizeof(*req), GFP_KERNEL);
if (!skb) {
*/
skb_get(skb);
set_arp_failure_handler(skb, arp_failure_discard);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
len = skb->len;
req = (struct tx_data_wr *) skb_push(skb, sizeof(*req));
req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA));
skb_get(skb);
skb->priority = CPL_PRIORITY_DATA;
set_arp_failure_handler(skb, arp_failure_discard);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
req = (struct tx_data_wr *) skb_push(skb, sizeof(*req));
req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA));
req->wr_lo = htonl(V_WR_TID(ep->hwtid));
*/
skb_get(skb);
set_arp_failure_handler(skb, arp_failure_discard);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
len = skb->len;
req = (struct tx_data_wr *) skb_push(skb, sizeof(*req));
req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_TX_DATA));
/*
* copy the new data into our accumulation buffer.
*/
- memcpy(&(ep->mpa_pkt[ep->mpa_pkt_len]), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, &(ep->mpa_pkt[ep->mpa_pkt_len]),
+ skb->len);
ep->mpa_pkt_len += skb->len;
/*
/*
* Copy the new data into our accumulation buffer.
*/
- memcpy(&(ep->mpa_pkt[ep->mpa_pkt_len]), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, &(ep->mpa_pkt[ep->mpa_pkt_len]),
+ skb->len);
ep->mpa_pkt_len += skb->len;
/*
PDBG("%s ep %p\n", __FUNCTION__, ep);
skb_pull(skb, sizeof(struct cpl_rdma_terminate));
PDBG("%s saving %d bytes of term msg\n", __FUNCTION__, skb->len);
- memcpy(ep->com.qp->attr.terminate_buffer, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, ep->com.qp->attr.terminate_buffer,
+ skb->len);
ep->com.qp->attr.terminate_msg_len = skb->len;
ep->com.qp->attr.is_terminate_local = 0;
return CPL_RET_BUF_DONE;
skb_put_frags(skb, IPOIB_CM_HEAD_SIZE, wc->byte_len, newskb);
skb->protocol = ((struct ipoib_header *) skb->data)->proto;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, IPOIB_ENCAP_LEN);
dev->last_rx = jiffies;
if (wc->slid != priv->local_lid ||
wc->src_qp != priv->qp->qp_num) {
skb->protocol = ((struct ipoib_header *) skb->data)->proto;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, IPOIB_ENCAP_LEN);
dev->last_rx = jiffies;
return 0;
}
skb_reserve(xmit_skb, 19);
- memcpy(skb_put(xmit_skb, len), skb->data, len);
+ skb_copy_from_linear_data(skb, skb_put(xmit_skb, len), len);
} else {
xmit_skb = skb_clone(skb, GFP_ATOMIC);
if (!xmit_skb) {
* transmit data
*/
count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);
- memcpy(ucs->bulk_out_buffer, bcs->tx_skb->data, count);
+ skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count);
skb_pull(bcs->tx_skb, count);
atomic_set(&ucs->busy, 1);
gig_dbg(DEBUG_OUTPUT, "write_modem: send %d bytes", count);
printk(KERN_DEBUG "tx: put 0x%x len=%d\n",
skb->data[2], txlen);
#endif
- memcpy(dma->sendbuf.dmabuf, skb->data+2, skb->len-2);
+ skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
+ skb->len - 2);
}
txlen = (txlen + 3) & ~3;
printk(KERN_DEBUG "%s: tx put 0x%x len=%d\n",
card->name, skb->data[2], txlen);
#endif
- memcpy(dma->sendbuf.dmabuf, skb->data+2, skb->len-2);
+ skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
+ skb->len - 2);
}
txlen = (txlen + 3) & ~3;
count = len;
if (count > MAX_MODEM_BUF - fp) {
count = MAX_MODEM_BUF - fp;
- memcpy(cs->hw.elsa.transbuf + fp, bcs->tx_skb->data, count);
+ skb_copy_from_linear_data(bcs->tx_skb,
+ cs->hw.elsa.transbuf + fp, count);
skb_pull(bcs->tx_skb, count);
cs->hw.elsa.transcnt += count;
ret = count;
count = len - count;
fp = 0;
}
- memcpy((cs->hw.elsa.transbuf + fp), bcs->tx_skb->data, count);
+ skb_copy_from_linear_data(bcs->tx_skb,
+ cs->hw.elsa.transbuf + fp, count);
skb_pull(bcs->tx_skb, count);
cs->hw.elsa.transcnt += count;
ret += count;
oskb = skb;
skb = alloc_skb(oskb->len + i, GFP_ATOMIC);
memcpy(skb_put(skb, i), header, i);
- memcpy(skb_put(skb, oskb->len), oskb->data, oskb->len);
+ skb_copy_from_linear_data(oskb,
+ skb_put(skb, oskb->len), oskb->len);
dev_kfree_skb(oskb);
}
st->l2.l2l1(st, PH_PULL | INDICATION, skb);
_len = CAPIMSG_LEN(skb->data);
if (_len > 22) {
_len2 = _len - 22;
- memcpy(msghead, skb->data, 22);
- memcpy(skb->data + _len2, msghead, 22);
+ skb_copy_from_linear_data(skb, msghead, 22);
+ skb_copy_to_linear_data_offset(skb, _len2,
+ msghead, 22);
skb_pull(skb, _len2);
CAPIMSG_SETLEN(skb->data, 22);
retval = capilib_data_b3_req(&cinfo->ncci_head,
lp->stats.rx_dropped++;
return;
}
- skb->dev = &lp->netdev;
-
/* copy the data */
memcpy(skb_put(skb, len), buf, len);
(skb = hysdn_tx_netget(card)) != NULL)
{
if (skb->len <= maxlen) {
- memcpy(buf, skb->data, skb->len); /* copy the packet to the buffer */
+ /* copy the packet to the buffer */
+ skb_copy_from_linear_data(skb, buf, skb->len);
*len = skb->len;
*chan = CHAN_NDIS_DATA;
card->net_tx_busy = 1; /* we are busy sending network data */
((skb = hycapi_tx_capiget(card)) != NULL) )
{
if (skb->len <= maxlen) {
- memcpy(buf, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, buf, skb->len);
*len = skb->len;
*chan = CHAN_CAPI;
hycapi_tx_capiack(card);
dflag = 0;
}
count_put = count_pull;
- memcpy(cp, skb->data, count_put);
+ skb_copy_from_linear_data(skb, cp, count_put);
cp += count_put;
len -= count_put;
#ifdef CONFIG_ISDN_AUDIO
static void
isdn_net_log_skb(struct sk_buff * skb, isdn_net_local * lp)
{
- u_char *p = skb->nh.raw; /* hopefully, this was set correctly */
+ /* hopefully, this was set correctly */
+ const u_char *p = skb_network_header(skb);
unsigned short proto = ntohs(skb->protocol);
int data_ofs;
ip_ports *ipp;
addinfo[0] = '\0';
/* This check stolen from 2.1.72 dev_queue_xmit_nit() */
- if (skb->nh.raw < skb->data || skb->nh.raw >= skb->tail) {
+ if (p < skb->data || skb->network_header >= skb->tail) {
/* fall back to old isdn_net_log_packet method() */
char * buf = skb->data;
if (!skb)
return;
if (lp->p_encap == ISDN_NET_ENCAP_ETHER) {
- int pullsize = (ulong)skb->nh.raw - (ulong)skb->data - ETH_HLEN;
+ const int pullsize = skb_network_offset(skb) - ETH_HLEN;
if (pullsize > 0) {
printk(KERN_DEBUG "isdn_net: Pull junk %d\n", pullsize);
skb_pull(skb, pullsize);
struct ethhdr *eth;
unsigned char *rawp;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
eth = eth_hdr(skb);
}
skb->dev = ndev;
skb->pkt_type = PACKET_HOST;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
#ifdef ISDN_DEBUG_NET_DUMP
isdn_dumppkt("R:", skb->data, skb->len, 40);
#endif
goto drop_packet;
}
skb_put(skb, skb_old->len + 128);
- memcpy(skb->data, skb_old->data, skb_old->len);
+ skb_copy_from_linear_data(skb_old, skb->data,
+ skb_old->len);
if (net_dev->local->ppp_slot < 0) {
printk(KERN_ERR "%s: net_dev->local->ppp_slot(%d) out of range\n",
__FUNCTION__, net_dev->local->ppp_slot);
mlp->huptimer = 0;
#endif /* CONFIG_IPPP_FILTER */
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
netif_rx(skb);
/* net_dev->local->stats.rx_packets++; done in isdn_net.c */
return;
while( from != to ) {
unsigned int len = from->len - MP_HEADER_LEN;
- memcpy(skb_put(skb,len), from->data+MP_HEADER_LEN, len);
+ skb_copy_from_linear_data_offset(from, MP_HEADER_LEN,
+ skb_put(skb,len),
+ len);
frag = from->next;
isdn_ppp_mp_free_skb(mp, from);
from = frag;
spin_lock_irqsave(&card->isdnloop_lock, flags);
nskb = dev_alloc_skb(skb->len);
if (nskb) {
- memcpy(skb_put(nskb, len), skb->data, len);
+ skb_copy_from_linear_data(skb,
+ skb_put(nskb, len), len);
skb_queue_tail(&card->bqueue[channel], nskb);
dev_kfree_skb(skb);
} else
if (!(info->data.setup.CallingPN = kmalloc(len - count + 1, GFP_ATOMIC)))
return -1;
- memcpy(info->data.setup.CallingPN, skb->data + count + 1,
- len - count);
+ skb_copy_from_linear_data_offset(skb, count + 1,
+ info->data.setup.CallingPN,
+ len - count);
info->data.setup.CallingPN[len - count] = 0;
}
if (!(info->data.setup.CalledPN = kmalloc(len - count + 1, GFP_ATOMIC)))
return -1;
- memcpy(info->data.setup.CalledPN, skb->data + count + 1,
- len - count);
+ skb_copy_from_linear_data_offset(skb, count + 1,
+ info->data.setup.CalledPN,
+ len - count);
info->data.setup.CalledPN[len - count] = 0;
}
#ifdef DEBUG
if (len > 1 && len < 31) {
- memcpy(str, skb->data + 2, len - 1);
+ skb_copy_from_linear_data_offset(skb, 2, str, len - 1);
str[len] = 0;
printk(KERN_DEBUG "Connected Party Number: %s\n", str);
}
* and zap two pdes instead of one.
*/
if (level == PT32_ROOT_LEVEL) {
+ page_offset &= ~7; /* kill rounding error */
page_offset <<= 1;
npte = 2;
}
struct ethhdr *eth;
unsigned char *rawp;
- skb->mac.raw=skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb,dev->hard_header_len);
eth = eth_hdr(skb);
/* Check CRC32, we've got it in our skb already. */
unsigned short ulen = htons(priv->ule_sndu_len);
unsigned short utype = htons(priv->ule_sndu_type);
+ const u8 *tail;
struct kvec iov[3] = {
{ &ulen, sizeof ulen },
{ &utype, sizeof utype },
}
ule_crc = iov_crc32(ule_crc, iov, 3);
- expected_crc = *((u8 *)priv->ule_skb->tail - 4) << 24 |
- *((u8 *)priv->ule_skb->tail - 3) << 16 |
- *((u8 *)priv->ule_skb->tail - 2) << 8 |
- *((u8 *)priv->ule_skb->tail - 1);
+ tail = skb_tail_pointer(priv->ule_skb);
+ expected_crc = *(tail - 4) << 24 |
+ *(tail - 3) << 16 |
+ *(tail - 2) << 8 |
+ *(tail - 1);
if (ule_crc != expected_crc) {
printk(KERN_WARNING "%lu: CRC32 check FAILED: %08x / %08x, SNDU len %d type %#x, ts_remain %d, next 2: %x.\n",
priv->ts_count, ule_crc, expected_crc, priv->ule_sndu_len, priv->ule_sndu_type, ts_remain, ts_remain > 2 ? *(unsigned short *)from_where : 0);
}
else
{
- memcpy(dest_addr, priv->ule_skb->data, ETH_ALEN);
+ skb_copy_from_linear_data(priv->ule_skb,
+ dest_addr,
+ ETH_ALEN);
skb_pull(priv->ule_skb, ETH_ALEN);
}
}
LANSendRequest_t *pSendReq;
SGETransaction32_t *pTrans;
SGESimple64_t *pSimple;
+ const unsigned char *mac;
dma_addr_t dma;
unsigned long flags;
int ctx;
/* Set the mac.raw pointer, since this apparently isn't getting
* done before we get the skb. Pull the data pointer past the mac data.
*/
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, 12);
dma = pci_map_single(mpt_dev->pcidev, skb->data, skb->len,
// IOC_AND_NETDEV_NAMES_s_s(dev),
// ctx, skb, skb->data));
+ mac = skb_mac_header(skb);
#ifdef QLOGIC_NAA_WORKAROUND
{
struct NAA_Hosed *nh;
drops. */
read_lock_irq(&bad_naa_lock);
for (nh = mpt_bad_naa; nh != NULL; nh=nh->next) {
- if ((nh->ieee[0] == skb->mac.raw[0]) &&
- (nh->ieee[1] == skb->mac.raw[1]) &&
- (nh->ieee[2] == skb->mac.raw[2]) &&
- (nh->ieee[3] == skb->mac.raw[3]) &&
- (nh->ieee[4] == skb->mac.raw[4]) &&
- (nh->ieee[5] == skb->mac.raw[5])) {
+ if ((nh->ieee[0] == mac[0]) &&
+ (nh->ieee[1] == mac[1]) &&
+ (nh->ieee[2] == mac[2]) &&
+ (nh->ieee[3] == mac[3]) &&
+ (nh->ieee[4] == mac[4]) &&
+ (nh->ieee[5] == mac[5])) {
cur_naa = nh->NAA;
dlprintk ((KERN_INFO "mptlan/sdu_send: using NAA value "
"= %04x.\n", cur_naa));
#endif
pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) |
- (skb->mac.raw[0] << 8) |
- (skb->mac.raw[1] << 0));
- pTrans->TransactionDetails[1] = cpu_to_le32((skb->mac.raw[2] << 24) |
- (skb->mac.raw[3] << 16) |
- (skb->mac.raw[4] << 8) |
- (skb->mac.raw[5] << 0));
+ (mac[0] << 8) |
+ (mac[1] << 0));
+ pTrans->TransactionDetails[1] = cpu_to_le32((mac[2] << 24) |
+ (mac[3] << 16) |
+ (mac[4] << 8) |
+ (mac[5] << 0));
pSimple = (SGESimple64_t *) &pTrans->TransactionDetails[2];
pci_dma_sync_single_for_cpu(mpt_dev->pcidev, priv->RcvCtl[ctx].dma,
priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE);
- memcpy(skb_put(skb, len), old_skb->data, len);
+ skb_copy_from_linear_data(old_skb, skb_put(skb, len), len);
pci_dma_sync_single_for_device(mpt_dev->pcidev, priv->RcvCtl[ctx].dma,
priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE);
priv->RcvCtl[ctx].dma,
priv->RcvCtl[ctx].len,
PCI_DMA_FROMDEVICE);
- memcpy(skb_put(skb, l), old_skb->data, l);
+ skb_copy_from_linear_data(old_skb, skb_put(skb, l), l);
pci_dma_sync_single_for_device(mpt_dev->pcidev,
priv->RcvCtl[ctx].dma,
priv->RcvCtl[ctx].len,
PCI_DMA_FROMDEVICE);
- memcpy(skb_put(skb, len), old_skb->data, len);
+ skb_copy_from_linear_data(old_skb, skb_put(skb, len), len);
pci_dma_sync_single_for_device(mpt_dev->pcidev,
priv->RcvCtl[ctx].dma,
struct mpt_lan_ohdr *fch = (struct mpt_lan_ohdr *)skb->data;
struct fcllc *fcllc;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, sizeof(struct mpt_lan_ohdr));
if (fch->dtype == htons(0xffff)) {
static LIST_HEAD(device_list);
struct uflash_dev {
- char *name; /* device name */
+ const char *name; /* device name */
struct map_info map; /* mtd map info */
struct mtd_info *mtd; /* mtd info */
};
up->name = of_get_property(dp, "model", NULL);
if (up->name && 0 < strlen(up->name))
- up->map.name = up->name;
+ up->map.name = (char *)up->name;
up->map.phys = res->start;
else
{
skb_reserve(skb,2); /* Force 16 byte alignment */
- skb->dev = dev;
/*
* The read increments through the bytes. The interrupt
* handler will fix the pointer when it returns to
if (test_and_set_bit(0, (void *) &adapter->dmaing))
printk(KERN_ERR "%s: rx blocked, DMA in progress, dir %d\n", dev->name, adapter->current_dma.direction);
- skb->dev = dev;
adapter->current_dma.direction = 0;
adapter->current_dma.length = rlen;
adapter->current_dma.skb = skb;
adapter->current_dma.start_time = jiffies;
if ((unsigned long)(skb->data + nlen) >= MAX_DMA_ADDRESS || nlen != skb->len) {
- memcpy(adapter->dma_buffer, skb->data, nlen);
+ skb_copy_from_linear_data(skb, adapter->dma_buffer, nlen);
memset(adapter->dma_buffer+skb->len, 0, nlen-skb->len);
target = isa_virt_to_bus(adapter->dma_buffer);
}
}
skb_reserve(skb,2);
- skb->dev = dev;
/* 'skb->data' points to the start of sk_buff data area. */
memcpy_fromio(skb_put(skb,pkt_len), data_frame + 10, pkt_len);
printk("Receiving packet size %d status %4.4x.\n",
pkt_len, rx_status);
if (skb != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte */
/* 'skb->data' points to the start of sk_buff data area. */
printk("Receiving packet size %d status %4.4x.\n",
pkt_len, rx_status);
if (skb != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
/* 'skb_put()' points to the start of sk_buff data area. */
insl(ioaddr + RX_FIFO,
copying to a properly sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 4)) != 0) {
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
/* 'skb_put()' points to the start of sk_buff data area. */
memcpy(skb_put(skb, pkt_len),
rbd->status = 0;
skb = (struct sk_buff *) dev_alloc_skb(totlen + 2);
if (skb != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte alignment */
skb_put(skb,totlen);
eth_copy_and_sum(skb, (char *) p->base+(unsigned long) rbd->buffer,totlen,0);
if (len != skb->len)
memset((char *) p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN);
- memcpy((char *) p->xmit_cbuffs[p->xmit_count], (char *) (skb->data), skb->len);
+ skb_copy_from_linear_data(skb, (char *) p->xmit_cbuffs[p->xmit_count], skb->len);
#if (NUM_XMIT_BUFFS == 1)
#ifdef NO_NOPCOMMANDS
}
skb->protocol=eth_type_trans(skb,dev);
- skb->dev=dev;
dev->last_rx = jiffies;
lp->net_stats.rx_packets++;
lp->net_stats.rx_bytes += length;
printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n",
pkt_len, rx_status);
if (skb != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
/* 'skb_put()' points to the start of sk_buff data area. */
if (vp->bus_master &&
/* Check if the packet is long enough to just accept without
copying to a properly sized skbuff. */
if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
/* 'skb_put()' points to the start of sk_buff data area. */
return 0;
}
- skb->dev = dev;
skb_reserve (skb, 2); /* 16 byte align */
skb_put (skb, len); /* make room */
eth_copy_and_sum(skb,
if (skb->len < ETH_ZLEN)
memset((char *)&ib->tx_buf[entry][0], 0, ETH_ZLEN);
- memcpy ((char *)&ib->tx_buf [entry][0], skb->data, skblen);
+ skb_copy_from_linear_data(skb, &ib->tx_buf[entry][0], skblen);
/* Now, give the packet to the lance */
ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
}
skb_reserve(new_skb, RX_OFFSET);
- new_skb->dev = dev;
pci_unmap_single(cp->pdev, mapping,
buflen, PCI_DMA_FROMDEVICE);
if (mss)
flags |= LargeSend | ((mss & MSSMask) << MSSShift);
else if (skb->ip_summed == CHECKSUM_PARTIAL) {
- const struct iphdr *ip = skb->nh.iph;
+ const struct iphdr *ip = ip_hdr(skb);
if (ip->protocol == IPPROTO_TCP)
flags |= IPCS | TCPCS;
else if (ip->protocol == IPPROTO_UDP)
u32 first_len, first_eor;
dma_addr_t first_mapping;
int frag, first_entry = entry;
- const struct iphdr *ip = skb->nh.iph;
+ const struct iphdr *ip = ip_hdr(skb);
/* We must give this initial chunk to the device last.
* Otherwise we could race with the device.
if (!skb)
goto err_out;
- skb->dev = cp->dev;
skb_reserve(skb, RX_OFFSET);
mapping = pci_map_single(cp->pdev, skb->data, cp->rx_buf_sz,
u32 left = RX_BUF_LEN - offset;
if (size > left) {
- memcpy(skb->data, ring + offset, left);
- memcpy(skb->data+left, ring, size - left);
+ skb_copy_to_linear_data(skb, ring + offset, left);
+ skb_copy_to_linear_data_offset(skb, left, ring, size - left);
} else
- memcpy(skb->data, ring + offset, size);
+ skb_copy_to_linear_data(skb, ring + offset, size);
}
#endif
skb = dev_alloc_skb (pkt_size + 2);
if (likely(skb)) {
- skb->dev = dev;
skb_reserve (skb, 2); /* 16 byte align the IP fields. */
#if RX_BUF_IDX == 3
wrap_copy(skb, rx_ring, ring_offset+4, pkt_size);
lp->stats.rx_dropped++;
}
else {
- skb->dev = dev;
if (!rx_in_place) {
/* 16 byte align the data fields */
skb_reserve(skb, 2);
tristate "Gianfar Ethernet"
depends on 85xx || 83xx || PPC_86xx
select PHYLIB
+ select CRC32
help
This driver supports the Gigabit TSEC on the MPC83xx, MPC85xx,
and MPC86xx family of chips, and the FEC on the 8540.
obj-$(CONFIG_WAN) += wan/
obj-$(CONFIG_ARCNET) += arcnet/
obj-$(CONFIG_NET_PCMCIA) += pcmcia/
-obj-$(CONFIG_NET_RADIO) += wireless/
+obj-y += wireless/
obj-$(CONFIG_NET_TULIP) += tulip/
obj-$(CONFIG_HAMRADIO) += hamradio/
obj-$(CONFIG_IRDA) += irda/
return 0;
}
- skb->dev = dev;
skb_reserve (skb, 2); /* 16 byte align */
skb_put (skb, len); /* make room */
eth_copy_and_sum(skb,
ib->btx_ring [entry].length = (-len) | 0xf000;
ib->btx_ring [entry].misc = 0;
- memcpy ((char *)&ib->tx_buf [entry][0], skb->data, skblen);
+ skb_copy_from_linear_data(skb, &ib->tx_buf [entry][0], skblen);
/* Clear the slack of the packet, do I need this? */
if (len != skblen)
*/
csum = retdesc->tcp_udp_csum;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
/*
pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[rx_index],
lp->rx_buff_len-2, PCI_DMA_FROMDEVICE);
skb_put(skb, pkt_len);
- skb->dev = dev;
lp->rx_skbuff[rx_index] = new_skb;
- new_skb->dev = dev;
lp->rx_dma_addr[rx_index] = pci_map_single(lp->pci_dev,
new_skb->data,
lp->rx_buff_len-2,
pci_unmap_single(lp->pci_dev,lp->rx_dma_addr[rx_index],
lp->rx_buff_len-2, PCI_DMA_FROMDEVICE);
skb_put(skb, pkt_len);
- skb->dev = dev;
lp->rx_skbuff[rx_index] = new_skb;
- new_skb->dev = dev;
lp->rx_dma_addr[rx_index] = pci_map_single(lp->pci_dev,
new_skb->data, lp->rx_buff_len-2,PCI_DMA_FROMDEVICE);
return;
}
- skb->mac.raw = skb->data; /* Point to entire packet. */
+ skb_reset_mac_header(skb); /* Point to entire packet. */
skb_pull(skb,3);
- skb->h.raw = skb->data; /* Point to data (Skip header). */
+ skb_reset_transport_header(skb); /* Point to data (Skip header). */
/* Update the counters. */
lp->stats.rx_packets++;
skb->data[0] = dnode;
skb->data[1] = snode;
skb->data[2] = llaptype;
- skb->mac.raw = skb->data; /* save pointer to llap header */
+ skb_reset_mac_header(skb); /* save pointer to llap header */
skb_pull(skb,3);
/* copy ddp(s,e)hdr + contents */
- memcpy(skb->data,(void*)ltdmabuf,len);
+ skb_copy_to_linear_data(skb, ltdmabuf, len);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
stats->rx_packets++;
stats->rx_bytes+=skb->len;
int i;
struct lt_sendlap cbuf;
+ unsigned char *hdr;
cbuf.command = LT_SENDLAP;
cbuf.dnode = skb->data[0];
cbuf.laptype = skb->data[2];
skb_pull(skb,3); /* skip past LLAP header */
cbuf.length = skb->len; /* this is host order */
- skb->h.raw=skb->data;
+ skb_reset_transport_header(skb);
if(debug & DEBUG_UPPER) {
printk("command ");
printk("\n");
}
- do_write(dev,&cbuf,sizeof(cbuf),skb->h.raw,skb->len);
+ hdr = skb_transport_header(skb);
+ do_write(dev, &cbuf, sizeof(cbuf), hdr, skb->len);
if(debug & DEBUG_UPPER) {
printk("sent %d ddp bytes\n",skb->len);
- for(i=0;i<skb->len;i++) printk("%02x ",skb->h.raw[i]);
+ for (i = 0; i < skb->len; i++)
+ printk("%02x ", hdr[i]);
printk("\n");
}
pkt = (struct archdr *) skb->data;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, ARC_HDR_SIZE);
/* up to sizeof(pkt->soft) has already been copied from the card */
* real header when we do rebuild_header.
*/
*(uint16_t *) skb_push(skb, 2) = type;
- if (skb->nh.raw - skb->mac.raw != 2)
+ /*
+ * XXX: Why not use skb->mac_len?
+ */
+ if (skb->network_header - skb->mac_header != 2)
BUGMSG(D_NORMAL, "arcnet_header: Yikes! diff (%d) is not 2!\n",
- (int)(skb->nh.raw - skb->mac.raw));
+ (int)(skb->network_header - skb->mac_header));
return -2; /* return error -- can't transmit yet! */
}
else {
unsigned short type;
uint8_t daddr=0;
struct ArcProto *proto;
-
- if (skb->nh.raw - skb->mac.raw != 2) {
+ /*
+ * XXX: Why not use skb->mac_len?
+ */
+ if (skb->network_header - skb->mac_header != 2) {
BUGMSG(D_NORMAL,
- "rebuild_header: shouldn't be here! (hdrsize=%d)\n",
- (int)(skb->nh.raw - skb->mac.raw));
+ "rebuild_header: shouldn't be here! (hdrsize=%d)\n",
+ (int)(skb->network_header - skb->mac_header));
return 0;
}
type = *(uint16_t *) skb_pull(skb, 2);
}
skb_put(skb, length + ARC_HDR_SIZE + sizeof(int));
skb->dev = dev;
-
- pkt = (struct archdr *) skb->data;
-
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
+ pkt = (struct archdr *)skb_mac_header(skb);
skb_pull(skb, ARC_HDR_SIZE);
/* up to sizeof(pkt->soft) has already been copied from the card */
skb_put(ackskb, length + ARC_HDR_SIZE );
ackskb->dev = dev;
- ackpkt = (struct archdr *) ackskb->data;
-
- ackskb->mac.raw = ackskb->data;
+ skb_reset_mac_header(ackskb);
+ ackpkt = (struct archdr *)skb_mac_header(ackskb);
/* skb_pull(ackskb, ARC_HDR_SIZE); */
- memcpy(ackpkt, lp->outgoing.skb->data, ARC_HDR_SIZE+sizeof(struct arc_cap));
+ skb_copy_from_linear_data(lp->outgoing.skb, ackpkt,
+ ARC_HDR_SIZE + sizeof(struct arc_cap));
ackpkt->soft.cap.proto=0; /* using protocol 0 for acknowledge */
ackpkt->soft.cap.mes.ack=acked;
int hdr_size = ARC_HDR_SIZE + RFC1051_HDR_SIZE;
/* Pull off the arcnet header. */
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, hdr_size);
if (pkt->hard.dest == 0)
int hdr_size = ARC_HDR_SIZE + RFC1201_HDR_SIZE;
/* Pull off the arcnet header. */
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, hdr_size);
if (pkt->hard.dest == 0)
}
- skb->dev = dev;
skb_reserve(skb,2); /* 16 byte align */
skb_put(skb,pkt_len); /* Make room */
eth_copy_and_sum(skb, (char *)priv->rx_buff[entry], pkt_len,0);
skb = dev_alloc_skb(len + 2);
if (skb) {
- skb->dev = dev;
skb_reserve(skb, 2);
am_readbuffer(dev, pktaddr, skb_put(skb, len), len);
skb_reserve(skb, 2);
memcpy(skb_put(skb, pktlen), p_recv, pktlen);
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
dev->last_rx = jiffies;
lp->stats.rx_bytes += pktlen;
skb = dev_alloc_skb(length + 2);
if (likely(skb != NULL)) {
- skb->dev = dev;
skb_reserve(skb, 2);
dma_sync_single(NULL, ep->descs->rdesc[entry].buf_addr,
length, DMA_FROM_DEVICE);
skb = dev_alloc_skb (length + 2);
if (skb) {
- skb->dev = dev;
skb_reserve (skb, 2);
ether1_readbuffer (dev, skb_put (skb, length), rbd.rbd_bufl, length);
if (skb) {
unsigned char *buf;
- skb->dev = dev;
skb_reserve(skb, 2);
buf = skb_put(skb, length);
ether3_readbuffer(dev, buf + 12, length - 12);
lp->stats.rx_dropped++;
break;
}
- skb->dev = dev;
skb_reserve(skb,2);
insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1);
stdma_lock(bionet_intr, NULL);
local_irq_restore(flags);
if( !STRAM_ADDR(buf+length-1) ) {
- memcpy(nic_packet->buffer, skb->data, length);
+ skb_copy_from_linear_data(skb, nic_packet->buffer,
+ length);
buf = (unsigned long)&((struct nic_pkt_s *)phys_nic_packet)->buffer;
}
break;
}
- skb->dev = dev;
skb_reserve( skb, 2 ); /* 16 Byte align */
skb_put( skb, pkt_len ); /* make room */
/* 'skb->data' points to the start of sk_buff data area.
*/
- memcpy(skb->data, nic_packet->buffer, pkt_len);
+ skb_copy_to_linear_data(skb, nic_packet->buffer,
+ pkt_len);
skb->protocol = eth_type_trans( skb, dev );
netif_rx(skb);
dev->last_rx = jiffies;
local_irq_restore(flags);
if( !STRAM_ADDR(buf+length-1) ) {
- memcpy(nic_packet->buffer, skb->data, length);
+ skb_copy_from_linear_data(skb, nic_packet->buffer,
+ length);
buf = (unsigned long)phys_nic_packet;
}
/* 'skb->data' points to the start of sk_buff data area.
*/
- memcpy(skb->data, nic_packet->buffer, pkt_len);
+ skb_copy_to_linear_data(skb, nic_packet->buffer,
+ pkt_len);
netif_rx(skb);
dev->last_rx = jiffies;
lp->stats.rx_packets++;
pkt_len );
}
- skb->dev = dev;
skb_reserve( skb, 2 ); /* 16 byte align */
skb_put( skb, pkt_len ); /* Make room */
lp->memcpy_f( skb->data, PKTBUF_ADDR(head), pkt_len );
static u16 atl1_alloc_rx_buffers(struct atl1_adapter *adapter)
{
struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct page *page;
unsigned long offset;
* the 14 byte MAC header is removed
*/
skb_reserve(skb, NET_IP_ALIGN);
- skb->dev = netdev;
buffer_info->alloced = 1;
buffer_info->skb = skb;
}
if (skb->protocol == ntohs(ETH_P_IP)) {
- skb->nh.iph->tot_len = 0;
- skb->nh.iph->check = 0;
- skb->h.th->check =
- ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr, 0,
- IPPROTO_TCP, 0);
- ipofst = skb->nh.raw - skb->data;
+ struct iphdr *iph = ip_hdr(skb);
+
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP,
+ 0);
+ ipofst = skb_network_offset(skb);
if (ipofst != ENET_HEADER_SIZE) /* 802.3 frame */
tso->tsopl |= 1 << TSO_PARAM_ETHTYPE_SHIFT;
- tso->tsopl |= (skb->nh.iph->ihl &
+ tso->tsopl |= (iph->ihl &
CSUM_PARAM_IPHL_MASK) << CSUM_PARAM_IPHL_SHIFT;
- tso->tsopl |= ((skb->h.th->doff << 2) &
+ tso->tsopl |= (tcp_hdrlen(skb) &
TSO_PARAM_TCPHDRLEN_MASK) << TSO_PARAM_TCPHDRLEN_SHIFT;
tso->tsopl |= (skb_shinfo(skb)->gso_size &
TSO_PARAM_MSS_MASK) << TSO_PARAM_MSS_SHIFT;
u8 css, cso;
if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
- cso = skb->h.raw - skb->data;
- css = (skb->h.raw + skb->csum_offset) - skb->data;
+ cso = skb_transport_offset(skb);
+ css = cso + skb->csum_offset;
if (unlikely(cso & 0x1)) {
printk(KERN_DEBUG "%s: payload offset != even number\n",
atl1_driver_name);
if (tcp_seg) {
/* TSO/GSO */
- proto_hdr_len =
- ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ proto_hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
buffer_info->length = proto_hdr_len;
page = virt_to_page(skb->data);
offset = (unsigned long)skb->data & ~PAGE_MASK;
mss = skb_shinfo(skb)->gso_size;
if (mss) {
if (skb->protocol == htons(ETH_P_IP)) {
- proto_hdr_len = ((skb->h.raw - skb->data) +
- (skb->h.th->doff << 2));
+ proto_hdr_len = (skb_transport_offset(skb) +
+ tcp_hdrlen(skb));
if (unlikely(proto_hdr_len > len)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
lp->stats.rx_dropped++;
goto done;
}
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
read_block(ioaddr, pkt_len, skb_put(skb,pkt_len), dev->if_port);
}
pDB = aup->tx_db_inuse[aup->tx_head];
- memcpy((void *)pDB->vaddr, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, pDB->vaddr, skb->len);
if (skb->len < ETH_ZLEN) {
for (i=skb->len; i<ETH_ZLEN; i++) {
((char *)pDB->vaddr)[i] = 0;
aup->stats.rx_dropped++;
continue;
}
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte IP header align */
eth_copy_and_sum(skb,
(unsigned char *)pDB->vaddr, frmlen, 0);
if (copy_skb == NULL)
goto drop_it_no_recycle;
- copy_skb->dev = bp->dev;
skb_reserve(copy_skb, 2);
skb_put(copy_skb, len);
/* DMA sync done above, copy just the actual packet */
- memcpy(copy_skb->data, skb->data+bp->rx_offset, len);
-
+ skb_copy_from_linear_data_offset(skb, bp->rx_offset,
+ copy_skb->data, len);
skb = copy_skb;
}
skb->ip_summed = CHECKSUM_NONE;
goto err_out;
}
- memcpy(skb_put(bounce_skb, len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(bounce_skb, len),
+ skb->len);
dev_kfree_skb_any(skb);
skb = bounce_skb;
}
if (skb != NULL) {
nb -= ETHERCRC;
skb_put(skb, nb);
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
#define DRV_MODULE_NAME "bnx2"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "1.5.7"
-#define DRV_MODULE_RELDATE "March 29, 2007"
+#define DRV_MODULE_VERSION "1.5.8"
+#define DRV_MODULE_RELDATE "April 24, 2007"
#define RUN_AT(x) (jiffies + (x))
goto reuse_rx;
/* aligned copy */
- memcpy(new_skb->data,
- skb->data + bp->rx_offset - 2,
- len + 2);
-
+ skb_copy_from_linear_data_offset(skb, bp->rx_offset - 2,
+ new_skb->data, len + 2);
skb_reserve(new_skb, 2);
skb_put(new_skb, len);
val = REG_RD(bp, BNX2_MQ_CONFIG);
val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;
val |= BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE_256;
+ if (CHIP_ID(bp) == CHIP_ID_5709_A0 || CHIP_ID(bp) == CHIP_ID_5709_A1)
+ val |= BNX2_MQ_CONFIG_HALT_DIS;
+
REG_WR(bp, BNX2_MQ_CONFIG, val);
val = 0x10000 + (MAX_CID_CNT * MB_KERNEL_CTX_SIZE);
if ((mss = skb_shinfo(skb)->gso_size) &&
(skb->len > (bp->dev->mtu + ETH_HLEN))) {
u32 tcp_opt_len, ip_tcp_len;
+ struct iphdr *iph;
if (skb_header_cloned(skb) &&
pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
return NETDEV_TX_OK;
}
- tcp_opt_len = ((skb->h.th->doff - 5) * 4);
vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;
tcp_opt_len = 0;
- if (skb->h.th->doff > 5) {
- tcp_opt_len = (skb->h.th->doff - 5) << 2;
- }
- ip_tcp_len = (skb->nh.iph->ihl << 2) + sizeof(struct tcphdr);
-
- skb->nh.iph->check = 0;
- skb->nh.iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
- skb->h.th->check =
- ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- 0, IPPROTO_TCP, 0);
-
- if (tcp_opt_len || (skb->nh.iph->ihl > 5)) {
- vlan_tag_flags |= ((skb->nh.iph->ihl - 5) +
- (tcp_opt_len >> 2)) << 8;
+ if (tcp_hdr(skb)->doff > 5)
+ tcp_opt_len = tcp_optlen(skb);
+
+ ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
+
+ iph = ip_hdr(skb);
+ iph->check = 0;
+ iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP, 0);
+ if (tcp_opt_len || (iph->ihl > 5)) {
+ vlan_tag_flags |= ((iph->ihl - 5) +
+ (tcp_opt_len >> 2)) << 8;
}
}
else
#define CHIP_ID_5708_B0 0x57081000
#define CHIP_ID_5708_B1 0x57081010
#define CHIP_ID_5709_A0 0x57090000
+#define CHIP_ID_5709_A1 0x57090010
#define CHIP_BOND_ID(bp) (((bp)->chip_id) & 0xf)
}
skb->dev = slave->dev;
- skb->mac.raw = skb->data;
- skb->nh.raw = skb->data + ETH_HLEN;
+ skb_reset_mac_header(skb);
+ skb->network_header = skb->mac_header + ETH_HLEN;
skb->protocol = PKT_TYPE_LACPDU;
skb->priority = TC_PRIO_CONTROL;
skb_reserve(skb, 16);
skb->dev = slave->dev;
- skb->mac.raw = skb->data;
- skb->nh.raw = skb->data + ETH_HLEN;
+ skb_reset_mac_header(skb);
+ skb->network_header = skb->mac_header + ETH_HLEN;
skb->protocol = PKT_TYPE_LACPDU;
marker_header = (struct marker_header *)skb_put(skb, length);
};
#pragma pack()
+static inline struct arp_pkt *arp_pkt(const struct sk_buff *skb)
+{
+ return (struct arp_pkt *)skb_network_header(skb);
+}
+
/* Forward declaration */
static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[]);
-static inline u8 _simple_hash(u8 *hash_start, int hash_size)
+static inline u8 _simple_hash(const u8 *hash_start, int hash_size)
{
int i;
u8 hash = 0;
static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bond)
{
struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
- struct arp_pkt *arp = (struct arp_pkt *)skb->nh.raw;
+ struct arp_pkt *arp = arp_pkt(skb);
struct slave *assigned_slave;
struct rlb_client_info *client_info;
u32 hash_index = 0;
*/
static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond)
{
- struct arp_pkt *arp = (struct arp_pkt *)skb->nh.raw;
+ struct arp_pkt *arp = arp_pkt(skb);
struct slave *tx_slave = NULL;
if (arp->op_code == __constant_htons(ARPOP_REPLY)) {
data = skb_put(skb, size);
memcpy(data, &pkt, size);
- skb->mac.raw = data;
- skb->nh.raw = data + ETH_HLEN;
+ skb_reset_mac_header(skb);
+ skb->network_header = skb->mac_header + ETH_HLEN;
skb->protocol = pkt.type;
skb->priority = TC_PRIO_CONTROL;
skb->dev = slave->dev;
int hash_size = 0;
int do_tx_balance = 1;
u32 hash_index = 0;
- u8 *hash_start = NULL;
+ const u8 *hash_start = NULL;
int res = 1;
- skb->mac.raw = (unsigned char *)skb->data;
+ skb_reset_mac_header(skb);
eth_data = eth_hdr(skb);
/* make sure that the curr_active_slave and the slaves list do
}
switch (ntohs(skb->protocol)) {
- case ETH_P_IP:
+ case ETH_P_IP: {
+ const struct iphdr *iph = ip_hdr(skb);
+
if ((memcmp(eth_data->h_dest, mac_bcast, ETH_ALEN) == 0) ||
- (skb->nh.iph->daddr == ip_bcast) ||
- (skb->nh.iph->protocol == IPPROTO_IGMP)) {
+ (iph->daddr == ip_bcast) ||
+ (iph->protocol == IPPROTO_IGMP)) {
do_tx_balance = 0;
break;
}
- hash_start = (char*)&(skb->nh.iph->daddr);
- hash_size = sizeof(skb->nh.iph->daddr);
+ hash_start = (char *)&(iph->daddr);
+ hash_size = sizeof(iph->daddr);
+ }
break;
case ETH_P_IPV6:
if (memcmp(eth_data->h_dest, mac_bcast, ETH_ALEN) == 0) {
break;
}
- hash_start = (char*)&(skb->nh.ipv6h->daddr);
- hash_size = sizeof(skb->nh.ipv6h->daddr);
+ hash_start = (char *)&(ipv6_hdr(skb)->daddr);
+ hash_size = sizeof(ipv6_hdr(skb)->daddr);
break;
case ETH_P_IPX:
if (ipx_hdr(skb)->ipx_checksum !=
(2 * sizeof(u32)))))
goto out_unlock;
- arp = skb->nh.arph;
+ arp = arp_hdr(skb);
if (arp->ar_hln != dev->addr_len ||
skb->pkt_type == PACKET_OTHERHOST ||
skb->pkt_type == PACKET_LOOPBACK ||
struct net_device *bond_dev, int count)
{
struct ethhdr *data = (struct ethhdr *)skb->data;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
u16 *layer4hdr = (u16 *)((u32 *)iph + iph->ihl);
int layer4_xor = 0;
read_lock_bh(&bond->lock);
bond_for_each_slave(bond, slave, i) {
- if (slave->dev->get_stats) {
- sstats = slave->dev->get_stats(slave->dev);
-
+ sstats = slave->dev->get_stats(slave->dev);
+ if (sstats) {
stats->rx_packets += sstats->rx_packets;
stats->rx_bytes += sstats->rx_bytes;
stats->rx_errors += sstats->rx_errors;
return -1;
*skbref = skb;
- skb->dev = cp->dev;
skb_reserve(skb, swivel);
p = skb->data;
ctrl = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- u64 csum_start_off, csum_stuff_off;
-
- csum_start_off = (u64) (skb->h.raw - skb->data);
- csum_stuff_off = csum_start_off + skb->csum_offset;
+ const u64 csum_start_off = skb_transport_offset(skb);
+ const u64 csum_stuff_off = csum_start_off + skb->csum_offset;
ctrl = TX_DESC_CSUM_EN |
CAS_BASE(TX_DESC_CSUM_START, csum_start_off) |
ctrl | TX_DESC_SOF, 0);
entry = TX_DESC_NEXT(ring, entry);
- memcpy(tx_tiny_buf(cp, ring, entry), skb->data +
- len - tabort, tabort);
+ skb_copy_from_linear_data_offset(skb, len - tabort,
+ tx_tiny_buf(cp, ring, entry), tabort);
mapping = tx_tiny_map(cp, ring, entry, tentry);
cas_write_txd(cp, ring, entry, mapping, tabort, ctrl,
(nr_frags == 0));
pci_unmap_addr(ce, dma_addr),
pci_unmap_len(ce, dma_len),
PCI_DMA_FROMDEVICE);
- memcpy(skb->data, ce->skb->data, len);
+ skb_copy_from_linear_data(ce->skb, skb->data, len);
pci_dma_sync_single_for_device(pdev,
pci_unmap_addr(ce, dma_addr),
pci_unmap_len(ce, dma_len),
}
__skb_pull(skb, sizeof(*p));
- skb->dev = adapter->port[p->iff].dev;
skb->dev->last_rx = jiffies;
st = per_cpu_ptr(sge->port_stats[p->iff], smp_processor_id());
st->rx_packets++;
- skb->protocol = eth_type_trans(skb, skb->dev);
+ skb->protocol = eth_type_trans(skb, adapter->port[p->iff].dev);
if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff &&
skb->protocol == htons(ETH_P_IP) &&
(skb->data[9] == IPPROTO_TCP || skb->data[9] == IPPROTO_UDP)) {
++st->tx_tso;
- eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
+ eth_type = skb_network_offset(skb) == ETH_HLEN ?
CPL_ETH_II : CPL_ETH_II_VLAN;
hdr = (struct cpl_tx_pkt_lso *)skb_push(skb, sizeof(*hdr));
hdr->opcode = CPL_TX_PKT_LSO;
hdr->ip_csum_dis = hdr->l4_csum_dis = 0;
- hdr->ip_hdr_words = skb->nh.iph->ihl;
- hdr->tcp_hdr_words = skb->h.th->doff;
+ hdr->ip_hdr_words = ip_hdr(skb)->ihl;
+ hdr->tcp_hdr_words = tcp_hdr(skb)->doff;
hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type,
skb_shinfo(skb)->gso_size));
hdr->len = htonl(skb->len - sizeof(*hdr));
if (!(adapter->flags & UDP_CSUM_CAPABLE) &&
skb->ip_summed == CHECKSUM_PARTIAL &&
- skb->nh.iph->protocol == IPPROTO_UDP) {
+ ip_hdr(skb)->protocol == IPPROTO_UDP) {
if (unlikely(skb_checksum_help(skb))) {
pr_debug("%s: unable to do udp checksum\n", dev->name);
dev_kfree_skb_any(skb);
*/
if ((unlikely(!adapter->sge->espibug_skb[dev->if_port]))) {
if (skb->protocol == htons(ETH_P_ARP) &&
- skb->nh.arph->ar_op == htons(ARPOP_REQUEST)) {
+ arp_hdr(skb)->ar_op == htons(ARPOP_REQUEST)) {
adapter->sge->espibug_skb[dev->if_port] = skb;
/* We want to re-use this skb later. We
* simply bump the reference count and it
0x0, 0x7, 0x43, 0x0, 0x0, 0x0
};
- memcpy(skb->data + sizeof(struct cpl_tx_pkt),
- ch_mac_addr, ETH_ALEN);
- memcpy(skb->data + skb->len - 10,
- ch_mac_addr, ETH_ALEN);
+ skb_copy_to_linear_data_offset(skb,
+ sizeof(struct cpl_tx_pkt),
+ ch_mac_addr,
+ ETH_ALEN);
+ skb_copy_to_linear_data_offset(skb,
+ skb->len - 10,
+ ch_mac_addr,
+ ETH_ALEN);
skb->cb[0] = 0xff;
}
if (!skb->cb[0]) {
u8 ch_mac_addr[ETH_ALEN] =
{0x0, 0x7, 0x43, 0x0, 0x0, 0x0};
- memcpy(skb->data + sizeof(struct cpl_tx_pkt),
- ch_mac_addr, ETH_ALEN);
- memcpy(skb->data + skb->len - 10, ch_mac_addr,
- ETH_ALEN);
+ skb_copy_to_linear_data_offset(skb,
+ sizeof(struct cpl_tx_pkt),
+ ch_mac_addr,
+ ETH_ALEN);
+ skb_copy_to_linear_data_offset(skb,
+ skb->len - 10,
+ ch_mac_addr,
+ ETH_ALEN);
skb->cb[0] = 0xff;
}
#ifdef ETHDEBUG
printk("head = 0x%x, data = 0x%x, tail = 0x%x, end = 0x%x\n",
- skb->head, skb->data, skb->tail, skb->end);
+ skb->head, skb->data, skb_tail_pointer(skb),
+ skb_end_pointer(skb));
printk("copying packet to 0x%x.\n", skb_data_ptr);
#endif
myNextRxDesc->descr.buf = L1_CACHE_ALIGN(virt_to_phys(myNextRxDesc->skb->data));
}
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
/* Send the packet to the upper layers */
return;
}
skb_reserve(skb, 2); /* longword align L3 header */
- skb->dev = dev;
if (bp + length > lp->end_dma_buff) {
int semi_cnt = lp->end_dma_buff - bp;
return;
}
skb_reserve(skb, 2); /* longword align L3 header */
- skb->dev = dev;
readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1);
if (length & 1)
static inline struct t3c_tid_entry *lookup_tid(const struct tid_info *t,
unsigned int tid)
{
- return tid < t->ntids ? &(t->tid_tab[tid]) : NULL;
+ struct t3c_tid_entry *t3c_tid = tid < t->ntids ?
+ &(t->tid_tab[tid]) : NULL;
+
+ return (t3c_tid && t3c_tid->client) ? t3c_tid : NULL;
}
/*
spin_lock_bh(&td->tid_release_lock);
p->ctx = (void *)td->tid_release_list;
+ p->client = NULL;
td->tid_release_list = p;
if (!p->ctx)
schedule_work(&td->tid_release_task);
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
- if (t3c_tid->ctx && t3c_tid->client && t3c_tid->client->handlers &&
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client &&
+ t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_ACT_OPEN_RPL]) {
return t3c_tid->client->handlers[CPL_ACT_OPEN_RPL] (dev, skb,
t3c_tid->
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
- if (t3c_tid->ctx && t3c_tid->client->handlers &&
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[p->opcode]) {
return t3c_tid->client->handlers[p->opcode] (dev, skb,
t3c_tid->ctx);
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
- if (t3c_tid->ctx && t3c_tid->client->handlers &&
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[p->opcode]) {
return t3c_tid->client->handlers[p->opcode]
(dev, skb, t3c_tid->ctx);
}
}
+/*
+ * Returns an sk_buff for a reply CPL message of size len. If the input
+ * sk_buff has no other users it is trimmed and reused, otherwise a new buffer
+ * is allocated. The input skb must be of size at least len. Note that this
+ * operation does not destroy the original skb data even if it decides to reuse
+ * the buffer.
+ */
+static struct sk_buff *cxgb3_get_cpl_reply_skb(struct sk_buff *skb, size_t len,
+ int gfp)
+{
+ if (likely(!skb_cloned(skb))) {
+ BUG_ON(skb->len < len);
+ __skb_trim(skb, len);
+ skb_get(skb);
+ } else {
+ skb = alloc_skb(len, gfp);
+ if (skb)
+ __skb_put(skb, len);
+ }
+ return skb;
+}
+
static int do_abort_req_rss(struct t3cdev *dev, struct sk_buff *skb)
{
union opcode_tid *p = cplhdr(skb);
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
- if (t3c_tid->ctx && t3c_tid->client->handlers &&
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[p->opcode]) {
return t3c_tid->client->handlers[p->opcode]
(dev, skb, t3c_tid->ctx);
} else {
struct cpl_abort_req_rss *req = cplhdr(skb);
struct cpl_abort_rpl *rpl;
+ struct sk_buff *reply_skb;
+ unsigned int tid = GET_TID(req);
+ u8 cmd = req->status;
+
+ if (req->status == CPL_ERR_RTX_NEG_ADVICE ||
+ req->status == CPL_ERR_PERSIST_NEG_ADVICE)
+ goto out;
- struct sk_buff *skb =
- alloc_skb(sizeof(struct cpl_abort_rpl), GFP_ATOMIC);
- if (!skb) {
+ reply_skb = cxgb3_get_cpl_reply_skb(skb,
+ sizeof(struct
+ cpl_abort_rpl),
+ GFP_ATOMIC);
+
+ if (!reply_skb) {
printk("do_abort_req_rss: couldn't get skb!\n");
goto out;
}
- skb->priority = CPL_PRIORITY_DATA;
- __skb_put(skb, sizeof(struct cpl_abort_rpl));
- rpl = cplhdr(skb);
+ reply_skb->priority = CPL_PRIORITY_DATA;
+ __skb_put(reply_skb, sizeof(struct cpl_abort_rpl));
+ rpl = cplhdr(reply_skb);
rpl->wr.wr_hi =
htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_RPL));
- rpl->wr.wr_lo = htonl(V_WR_TID(GET_TID(req)));
- OPCODE_TID(rpl) =
- htonl(MK_OPCODE_TID(CPL_ABORT_RPL, GET_TID(req)));
- rpl->cmd = req->status;
- cxgb3_ofld_send(dev, skb);
+ rpl->wr.wr_lo = htonl(V_WR_TID(tid));
+ OPCODE_TID(rpl) = htonl(MK_OPCODE_TID(CPL_ABORT_RPL, tid));
+ rpl->cmd = cmd;
+ cxgb3_ofld_send(dev, reply_skb);
out:
return CPL_RET_BUF_DONE;
}
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
- if (t3c_tid->ctx && t3c_tid->client->handlers &&
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
(dev, skb, t3c_tid->ctx);
skb->protocol = htons(0xffff);
skb->dev = dev->lldev;
skb_pull(skb, sizeof(*p));
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
netif_receive_skb(skb);
return 0;
}
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
- if (t3c_tid->ctx && t3c_tid->client->handlers &&
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[opcode]) {
return t3c_tid->client->handlers[opcode] (dev, skb,
t3c_tid->ctx);
for (tid = 0; tid < ti->ntids; tid++) {
te = lookup_tid(ti, tid);
BUG_ON(!te);
- if (te->ctx && te->client && te->client->redirect) {
+ if (te && te->ctx && te->client && te->client->redirect) {
update_tcb = te->client->redirect(te->ctx, old, new, e);
if (update_tcb) {
l2t_hold(L2DATA(tdev), e);
if (skb) {
__skb_put(skb, IMMED_PKT_SIZE);
- memcpy(skb->data, resp->imm_data, IMMED_PKT_SIZE);
+ skb_copy_to_linear_data(skb, resp->imm_data, IMMED_PKT_SIZE);
}
return skb;
}
d->flit[2] = 0;
cntrl |= V_TXPKT_OPCODE(CPL_TX_PKT_LSO);
hdr->cntrl = htonl(cntrl);
- eth_type = skb->nh.raw - skb->data == ETH_HLEN ?
+ eth_type = skb_network_offset(skb) == ETH_HLEN ?
CPL_ETH_II : CPL_ETH_II_VLAN;
tso_info |= V_LSO_ETH_TYPE(eth_type) |
- V_LSO_IPHDR_WORDS(skb->nh.iph->ihl) |
- V_LSO_TCPHDR_WORDS(skb->h.th->doff);
+ V_LSO_IPHDR_WORDS(ip_hdr(skb)->ihl) |
+ V_LSO_TCPHDR_WORDS(tcp_hdr(skb)->doff);
hdr->lso_info = htonl(tso_info);
flits = 3;
} else {
if (skb->len <= WR_LEN - sizeof(*cpl)) {
q->sdesc[pidx].skb = NULL;
if (!skb->data_len)
- memcpy(&d->flit[2], skb->data, skb->len);
+ skb_copy_from_linear_data(skb, &d->flit[2],
+ skb->len);
else
skb_copy_bits(skb, 0, &d->flit[2], skb->len);
/* Only TX_DATA builds SGLs */
from = (struct work_request_hdr *)skb->data;
- memcpy(&d->flit[1], &from[1], skb->h.raw - skb->data - sizeof(*from));
+ memcpy(&d->flit[1], &from[1],
+ skb_transport_offset(skb) - sizeof(*from));
- flits = (skb->h.raw - skb->data) / 8;
+ flits = skb_transport_offset(skb) / 8;
sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
- sgl_flits = make_sgl(skb, sgp, skb->h.raw, skb->tail - skb->h.raw,
+ sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb),
+ skb->tail - skb->transport_header,
adap->pdev);
if (need_skb_unmap()) {
setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
skb->destructor = deferred_unmap_destructor;
- ((struct unmap_info *)skb->cb)->len = skb->tail - skb->h.raw;
+ ((struct unmap_info *)skb->cb)->len = (skb->tail -
+ skb->transport_header);
}
write_wr_hdr_sgl(ndesc, skb, d, pidx, q, sgl, flits, sgl_flits,
if (skb->len <= WR_LEN && cnt == 0)
return 1; /* packet fits as immediate data */
- flits = (skb->h.raw - skb->data) / 8; /* headers */
- if (skb->tail != skb->h.raw)
+ flits = skb_transport_offset(skb) / 8; /* headers */
+ if (skb->tail != skb->transport_header)
cnt++;
return flits_to_desc(flits + sgl_len(cnt));
}
unsigned int gather_idx)
{
rq->offload_pkts++;
- skb->mac.raw = skb->nh.raw = skb->h.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
if (rq->polling) {
rx_gather[gather_idx++] = skb;
struct port_info *pi;
skb_pull(skb, sizeof(*p) + pad);
- skb->dev = adap->port[p->iff];
skb->dev->last_rx = jiffies;
- skb->protocol = eth_type_trans(skb, skb->dev);
+ skb->protocol = eth_type_trans(skb, adap->port[p->iff]);
pi = netdev_priv(skb->dev);
if (pi->rx_csum_offload && p->csum_valid && p->csum == 0xffff &&
!p->fragment) {
{
skb->len = len;
if (len <= SKB_DATA_SIZE) {
- memcpy(skb->data, p->va, len);
+ skb_copy_to_linear_data(skb, p->va, len);
skb->tail += len;
put_page(p->frag.page);
} else {
- memcpy(skb->data, p->va, SKB_DATA_SIZE);
+ skb_copy_to_linear_data(skb, p->va, SKB_DATA_SIZE);
skb_shinfo(skb)->frags[0].page = p->frag.page;
skb_shinfo(skb)->frags[0].page_offset =
p->frag.page_offset + SKB_DATA_SIZE;
__skb_put(skb, len);
pci_dma_sync_single_for_cpu(adap->pdev, mapping, len,
PCI_DMA_FROMDEVICE);
- memcpy(skb->data, sd->t.skb->data, len);
+ skb_copy_from_linear_data(sd->t.skb, skb->data, len);
pci_dma_sync_single_for_device(adap->pdev, mapping, len,
PCI_DMA_FROMDEVICE);
} else if (!drop_thres)
*/
int t3_phy_intr_handler(struct adapter *adapter)
{
- static const int intr_gpio_bits[] = { 8, 0x20 };
-
+ u32 mask, gpi = adapter_info(adapter)->gpio_intr;
u32 i, cause = t3_read_reg(adapter, A_T3DBG_INT_CAUSE);
for_each_port(adapter, i) {
- if (cause & intr_gpio_bits[i]) {
- struct cphy *phy = &adap2pinfo(adapter, i)->phy;
- int phy_cause = phy->ops->intr_handler(phy);
+ struct port_info *p = adap2pinfo(adapter, i);
+
+ mask = gpi - (gpi & (gpi - 1));
+ gpi -= mask;
+
+ if (!(p->port_type->caps & SUPPORTED_IRQ))
+ continue;
+
+ if (cause & mask) {
+ int phy_cause = p->phy.ops->intr_handler(&p->phy);
if (phy_cause & cphy_cause_link_change)
t3_link_changed(adapter, i);
if (phy_cause & cphy_cause_fifo_error)
- phy->fifo_errors++;
+ p->phy.fifo_errors++;
}
}
}
/* else */
- skb->dev = dev;
skb_reserve(skb,2); /* Align */
/* 'skb->data' points to the start of sk_buff data area. */
}
else { /* Yep! Go get it! */
skb_reserve(skb,2); /* Align */
- skb->dev = dev;
/* skb->data points to the start of sk_buff data area */
buffer = skb_put(skb,size);
/* copy the packet into the buffer */
}
lp->stats.rx_bytes += len;
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align */
skb_put(skb, len); /* make room */
{
/* Receive buffer allocated, pass receive packet up */
- memcpy(skb->data, p_buff + RCV_BUFF_K_PADDING, pkt_len+3);
+ skb_copy_to_linear_data(skb,
+ p_buff + RCV_BUFF_K_PADDING,
+ pkt_len + 3);
}
skb_reserve(skb,3); /* adjust data field so that it points to FC byte */
skb_put(skb, pkt_len); /* pass up packet length, NOT including CRC */
- skb->dev = bp->dev; /* pass up device pointer */
-
skb->protocol = fddi_type_trans(skb, bp->dev);
bp->rcv_total_bytes += skb->len;
netif_rx(skb);
unsigned char *buf;
skb_reserve(skb, 2); /* 16 byte align the IP header */
buf = skb_put(skb, pkt_len);
- skb->dev = dev;
if (entry < lp->rx_old) { /* Wrapped buffer */
len = (lp->rxRingMask - lp->rx_old + 1) * RX_BUFF_SZ;
memcpy_fromio(buf, lp->rx_buff[lp->rx_old], len);
depca_io_ports[i].device = pldev;
if (platform_device_add(pldev)) {
- platform_device_put(pldev);
depca_io_ports[i].device = NULL;
+ pldev->dev.platform_data = NULL;
+ platform_device_put(pldev);
continue;
}
/* discarding the frame */
goto out;
}
- skb->dev = devN;
skb_reserve(skb, 2); /* Align IP header */
again:
}
amt = min_t(unsigned int, len, rbdp->size - count);
- memcpy( (char *) S2H(rbdp->buf) + count, skb->data + i, amt);
+ skb_copy_from_linear_data_offset(skb, i, S2H(rbdp->buf) + count, amt);
i += amt;
count += amt;
len -= amt;
break;
}
np->rx_skbuff[entry] = skb;
- skb->dev = dev;
/* 16 byte align the IP header */
skb_reserve (skb, 2);
np->rx_ring[entry].fraginfo =
dev->name);
break;
}
- skb->dev = dev; /* Mark as being used by this device. */
skb_reserve (skb, 2); /* 16 byte align the IP header. */
/* Rubicon now supports 40 bits of addressing space. */
np->rx_ring[i].fraginfo =
DMA_48BIT_MASK,
np->rx_buf_sz,
PCI_DMA_FROMDEVICE);
- skb->dev = dev;
/* 16 byte align the IP header */
skb_reserve (skb, 2);
eth_copy_and_sum (skb,
break;
}
np->rx_skbuff[entry] = skb;
- skb->dev = dev;
/* 16 byte align the IP header */
skb_reserve (skb, 2);
np->rx_ring[entry].fraginfo =
/* Move data from DM9000 */
if (GoodPacket
&& ((skb = dev_alloc_skb(RxLen + 4)) != NULL)) {
- skb->dev = dev;
skb_reserve(skb, 2);
rdptr = (u8 *) skb_put(skb, RxLen - 4);
/* Align, init, and map the RFD. */
skb_reserve(rx->skb, NET_IP_ALIGN);
- memcpy(rx->skb->data, &nic->blank_rfd, sizeof(struct rfd));
+ skb_copy_to_linear_data(rx->skb, &nic->blank_rfd, sizeof(struct rfd));
rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
return err;
}
- hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
mss = skb_shinfo(skb)->gso_size;
if (skb->protocol == htons(ETH_P_IP)) {
- skb->nh.iph->tot_len = 0;
- skb->nh.iph->check = 0;
- skb->h.th->check =
- ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- 0,
- IPPROTO_TCP,
- 0);
+ struct iphdr *iph = ip_hdr(skb);
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP,
+ 0);
cmd_length = E1000_TXD_CMD_IP;
- ipcse = skb->h.raw - skb->data - 1;
+ ipcse = skb_transport_offset(skb) - 1;
} else if (skb->protocol == htons(ETH_P_IPV6)) {
- skb->nh.ipv6h->payload_len = 0;
- skb->h.th->check =
- ~csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- 0,
- IPPROTO_TCP,
- 0);
+ ipv6_hdr(skb)->payload_len = 0;
+ tcp_hdr(skb)->check =
+ ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ 0, IPPROTO_TCP, 0);
ipcse = 0;
}
- ipcss = skb->nh.raw - skb->data;
- ipcso = (void *)&(skb->nh.iph->check) - (void *)skb->data;
- tucss = skb->h.raw - skb->data;
- tucso = (void *)&(skb->h.th->check) - (void *)skb->data;
+ ipcss = skb_network_offset(skb);
+ ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
+ tucss = skb_transport_offset(skb);
+ tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
tucse = 0;
cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
uint8_t css;
if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
- css = skb->h.raw - skb->data;
+ css = skb_transport_offset(skb);
i = tx_ring->next_to_use;
buffer_info = &tx_ring->buffer_info[i];
context_desc->lower_setup.ip_config = 0;
context_desc->upper_setup.tcp_fields.tucss = css;
- context_desc->upper_setup.tcp_fields.tucso = css + skb->csum;
+ context_desc->upper_setup.tcp_fields.tucso =
+ css + skb->csum_offset;
context_desc->upper_setup.tcp_fields.tucse = 0;
context_desc->tcp_seg_setup.data = 0;
context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
/* TSO Workaround for 82571/2/3 Controllers -- if skb->data
* points to just header, pull a few bytes of payload from
* frags into skb->data */
- hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
if (skb->data_len && (hdr_len == (skb->len - skb->data_len))) {
switch (adapter->hw.mac_type) {
unsigned int pull_size;
* NOTE: this is a TSO only workaround
* if end byte alignment not correct move us
* into the next dword */
- if ((unsigned long)(skb->tail - 1) & 4)
+ if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4)
break;
/* fall through */
case e1000_82571:
for (i = 0; i < E1000_MAX_INTR; i++)
if (unlikely(!adapter->clean_rx(adapter, adapter->rx_ring) &
- e1000_clean_tx_irq(adapter, adapter->tx_ring)))
+ !e1000_clean_tx_irq(adapter, adapter->tx_ring)))
break;
if (likely(adapter->itr_setting & 3))
for (i = 0; i < E1000_MAX_INTR; i++)
if (unlikely(!adapter->clean_rx(adapter, adapter->rx_ring) &
- e1000_clean_tx_irq(adapter, adapter->tx_ring)))
+ !e1000_clean_tx_irq(adapter, adapter->tx_ring)))
break;
if (likely(adapter->itr_setting & 3))
poll_dev->quota -= work_done;
/* If no Tx and not enough Rx work done, exit the polling mode */
- if ((tx_cleaned && (work_done < work_to_do)) ||
+ if ((!tx_cleaned && (work_done == 0)) ||
!netif_running(poll_dev)) {
quit_polling:
if (likely(adapter->itr_setting & 3))
#ifdef CONFIG_E1000_NAPI
unsigned int count = 0;
#endif
- boolean_t cleaned = TRUE;
+ boolean_t cleaned = FALSE;
unsigned int total_tx_bytes=0, total_tx_packets=0;
i = tx_ring->next_to_clean;
#ifdef CONFIG_E1000_NAPI
#define E1000_TX_WEIGHT 64
/* weight of a sort for tx, to avoid endless transmit cleanup */
- if (count++ == E1000_TX_WEIGHT) {
- cleaned = FALSE;
- break;
- }
+ if (count++ == E1000_TX_WEIGHT) break;
#endif
}
netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
if (new_skb) {
skb_reserve(new_skb, NET_IP_ALIGN);
- memcpy(new_skb->data - NET_IP_ALIGN,
- skb->data - NET_IP_ALIGN,
- length + NET_IP_ALIGN);
+ skb_copy_to_linear_data_offset(new_skb,
+ -NET_IP_ALIGN,
+ (skb->data -
+ NET_IP_ALIGN),
+ (length +
+ NET_IP_ALIGN));
/* save the skb in buffer_info as good */
buffer_info->skb = skb;
skb = new_skb;
PCI_DMA_FROMDEVICE);
vaddr = kmap_atomic(ps_page->ps_page[0],
KM_SKB_DATA_SOFTIRQ);
- memcpy(skb->tail, vaddr, l1);
+ memcpy(skb_tail_pointer(skb), vaddr, l1);
kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
pci_dma_sync_single_for_device(pdev,
ps_page_dma->ps_page_dma[0],
break;
}
- skb->dev = dev;
skb_reserve(skb,2);
if (lp->version == LAN595)
copying to a properly sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != 0) {
- skb->dev = dev;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
/* 'skb_put()' points to the start of sk_buff data area. */
pci_dma_sync_single_for_cpu(sp->pdev, sp->rx_ring_dma[entry],
eth_copy_and_sum(skb, sp->rx_skbuff[entry]->data, pkt_len, 0);
skb_put(skb, pkt_len);
#else
- memcpy(skb_put(skb, pkt_len), sp->rx_skbuff[entry]->data,
- pkt_len);
+ skb_copy_from_linear_data(sp->rx_skbuff[entry],
+ skb_put(skb, pkt_len),
+ pkt_len);
#endif
pci_dma_sync_single_for_device(sp->pdev, sp->rx_ring_dma[entry],
sizeof(struct RxFD) + pkt_len,
lp->stats.rx_dropped++;
break;
}
- skb->dev = dev;
skb_reserve(skb, 2);
outw(pbuf+10, ioaddr+READ_PTR);
insw(ioaddr+DATAPORT, skb_put(skb,pkt_len),(pkt_len+1)>>1);
if (!skb)
break;
}
- memcpy(skb->data, ((char*)cqe) + 64,
- cqe->num_bytes_transfered - 4);
+ skb_copy_to_linear_data(skb, ((char*)cqe) + 64,
+ cqe->num_bytes_transfered - 4);
ehea_fill_skb(dev, skb, cqe);
} else if (rq == 2) { /* RQ2 */
skb = get_skb_by_index(skb_arr_rq2,
static inline void write_ip_start_end(struct ehea_swqe *swqe,
const struct sk_buff *skb)
{
- swqe->ip_start = (u8)(((u64)skb->nh.iph) - ((u64)skb->data));
- swqe->ip_end = (u8)(swqe->ip_start + skb->nh.iph->ihl * 4 - 1);
+ swqe->ip_start = skb_network_offset(skb);
+ swqe->ip_end = (u8)(swqe->ip_start + ip_hdrlen(skb) - 1);
}
static inline void write_tcp_offset_end(struct ehea_swqe *swqe,
/* copy only eth/ip/tcp headers to immediate data and
* the rest of skb->data to sg1entry
*/
- headersize = ETH_HLEN + (skb->nh.iph->ihl * 4) + (skb->h.th->doff * 4);
+ headersize = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
skb_data_size = skb->len - skb->data_len;
if (skb_data_size >= headersize) {
/* copy immediate data */
- memcpy(imm_data, skb->data, headersize);
+ skb_copy_from_linear_data(skb, imm_data, headersize);
swqe->immediate_data_length = headersize;
if (skb_data_size > headersize) {
*/
if (skb_data_size >= SWQE2_MAX_IMM) {
/* copy immediate data */
- memcpy(imm_data, skb->data, SWQE2_MAX_IMM);
+ skb_copy_from_linear_data(skb, imm_data, SWQE2_MAX_IMM);
swqe->immediate_data_length = SWQE2_MAX_IMM;
swqe->descriptors++;
}
} else {
- memcpy(imm_data, skb->data, skb_data_size);
+ skb_copy_from_linear_data(skb, imm_data, skb_data_size);
swqe->immediate_data_length = skb_data_size;
}
}
struct ehea_swqe *swqe, u32 lkey)
{
if (skb->protocol == htons(ETH_P_IP)) {
+ const struct iphdr *iph = ip_hdr(skb);
/* IPv4 */
swqe->tx_control |= EHEA_SWQE_CRC
| EHEA_SWQE_IP_CHECKSUM
write_ip_start_end(swqe, skb);
- if (skb->nh.iph->protocol == IPPROTO_UDP) {
- if ((skb->nh.iph->frag_off & IP_MF) ||
- (skb->nh.iph->frag_off & IP_OFFSET))
+ if (iph->protocol == IPPROTO_UDP) {
+ if ((iph->frag_off & IP_MF) ||
+ (iph->frag_off & IP_OFFSET))
/* IP fragment, so don't change cs */
swqe->tx_control &= ~EHEA_SWQE_TCP_CHECKSUM;
else
write_udp_offset_end(swqe, skb);
- } else if (skb->nh.iph->protocol == IPPROTO_TCP) {
+ } else if (iph->protocol == IPPROTO_TCP) {
write_tcp_offset_end(swqe, skb);
}
int i;
if (skb->protocol == htons(ETH_P_IP)) {
+ const struct iphdr *iph = ip_hdr(skb);
/* IPv4 */
write_ip_start_end(swqe, skb);
- if (skb->nh.iph->protocol == IPPROTO_TCP) {
+ if (iph->protocol == IPPROTO_TCP) {
swqe->tx_control |= EHEA_SWQE_CRC
| EHEA_SWQE_IP_CHECKSUM
| EHEA_SWQE_TCP_CHECKSUM
write_tcp_offset_end(swqe, skb);
- } else if (skb->nh.iph->protocol == IPPROTO_UDP) {
- if ((skb->nh.iph->frag_off & IP_MF) ||
- (skb->nh.iph->frag_off & IP_OFFSET))
+ } else if (iph->protocol == IPPROTO_UDP) {
+ if ((iph->frag_off & IP_MF) ||
+ (iph->frag_off & IP_OFFSET))
/* IP fragment, so don't change cs */
swqe->tx_control |= EHEA_SWQE_CRC
| EHEA_SWQE_IMM_DATA_PRESENT;
/* copy (immediate) data */
if (nfrags == 0) {
/* data is in a single piece */
- memcpy(imm_data, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, imm_data, skb->len);
} else {
/* first copy data from the skb->data buffer ... */
- memcpy(imm_data, skb->data, skb->len - skb->data_len);
+ skb_copy_from_linear_data(skb, imm_data,
+ skb->len - skb->data_len);
imm_data += skb->len - skb->data_len;
/* ... then copy data from the fragments */
ep->rx_skbuff[i] = skb;
if (skb == NULL)
break;
- skb->dev = dev; /* Mark as being used by this device. */
skb_reserve(skb, 2); /* 16 byte align the IP header. */
ep->rx_ring[i].bufaddr = pci_map_single(ep->pci_dev,
skb->data, ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(ep->pci_dev,
ep->rx_ring[entry].bufaddr,
skb = ep->rx_skbuff[entry] = dev_alloc_skb(ep->rx_buf_sz);
if (skb == NULL)
break;
- skb->dev = dev; /* Mark as being used by this device. */
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
ep->rx_ring[entry].bufaddr = pci_map_single(ep->pci_dev,
skb->data, ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
break;
}
- skb->dev = dev;
skb_reserve(skb,2);
/*
if ((skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
unsigned char *p;
- skb->dev = dev;
skb_reserve(skb, 2); /* Align to 16 bytes */
p = skb_put(skb, pkt_len);
to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak &&
(skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(np->pci_dev,
np->cur_rx->buffer,
printk("%s: Memory squeeze, dropping packet.\n", dev->name);
fep->stats.rx_dropped++;
} else {
- skb->dev = dev;
skb_put(skb,pkt_len-4); /* Make room */
eth_copy_and_sum(skb, data, pkt_len-4, 0);
skb->protocol=eth_type_trans(skb,dev);
skbn = dev_alloc_skb(pkt_len + 2);
if (skbn != NULL) {
skb_reserve(skbn, 2); /* align IP header */
- memcpy(skbn->data, skb->data, pkt_len);
+ skb_copy_from_linear_data(skb
+ skbn->data,
+ pkt_len);
/* swap */
skbt = skb;
skb = skbn;
skbn = dev_alloc_skb(ENET_RX_FRSIZE);
if (skbn != NULL) {
- skb->dev = dev;
skb_put(skb, pkt_len); /* Make room */
skb->protocol = eth_type_trans(skb, dev);
received++;
while (np->put_rx.orig != less_rx) {
struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
if (skb) {
- skb->dev = dev;
np->put_rx_ctx->skb = skb;
- np->put_rx_ctx->dma = pci_map_single(np->pci_dev, skb->data,
- skb->end-skb->data, PCI_DMA_FROMDEVICE);
- np->put_rx_ctx->dma_len = skb->end-skb->data;
+ np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
+ skb->data,
+ skb_tailroom(skb),
+ PCI_DMA_FROMDEVICE);
+ np->put_rx_ctx->dma_len = skb_tailroom(skb);
np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
wmb();
np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
while (np->put_rx.ex != less_rx) {
struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
if (skb) {
- skb->dev = dev;
np->put_rx_ctx->skb = skb;
- np->put_rx_ctx->dma = pci_map_single(np->pci_dev, skb->data,
- skb->end-skb->data, PCI_DMA_FROMDEVICE);
- np->put_rx_ctx->dma_len = skb->end-skb->data;
+ np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
+ skb->data,
+ skb_tailroom(skb),
+ PCI_DMA_FROMDEVICE);
+ np->put_rx_ctx->dma_len = skb_tailroom(skb);
np->put_rx.ex->bufhigh = cpu_to_le64(np->put_rx_ctx->dma) >> 32;
np->put_rx.ex->buflow = cpu_to_le64(np->put_rx_ctx->dma) & 0x0FFFFFFFF;
wmb();
wmb();
if (np->rx_skb[i].skb) {
pci_unmap_single(np->pci_dev, np->rx_skb[i].dma,
- np->rx_skb[i].skb->end-np->rx_skb[i].skb->data,
- PCI_DMA_FROMDEVICE);
+ (skb_end_pointer(np->rx_skb[i].skb) -
+ np->rx_skb[i].skb->data),
+ PCI_DMA_FROMDEVICE);
dev_kfree_skb(np->rx_skb[i].skb);
np->rx_skb[i].skb = NULL;
}
ret = 0;
goto out;
}
+ test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
+ skb_tailroom(tx_skb),
+ PCI_DMA_FROMDEVICE);
pkt_data = skb_put(tx_skb, pkt_len);
for (i = 0; i < pkt_len; i++)
pkt_data[i] = (u8)(i & 0xff);
- test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
- tx_skb->end-tx_skb->data, PCI_DMA_FROMDEVICE);
if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr);
}
pci_unmap_page(np->pci_dev, test_dma_addr,
- tx_skb->end-tx_skb->data,
+ (skb_end_pointer(tx_skb) - tx_skb->data),
PCI_DMA_TODEVICE);
dev_kfree_skb_any(tx_skb);
out:
skbn = dev_alloc_skb(pkt_len + 2);
if (skbn != NULL) {
skb_reserve(skbn, 2); /* align IP header */
- memcpy(skbn->data, skb->data, pkt_len);
+ skb_copy_from_linear_data(skb,
+ skbn->data, pkt_len);
/* swap */
skbt = skb;
skb = skbn;
skbn = dev_alloc_skb(ENET_RX_FRSIZE);
if (skbn != NULL) {
- skb->dev = dev;
skb_put(skb, pkt_len); /* Make room */
skb->protocol = eth_type_trans(skb, dev);
received++;
skbn = dev_alloc_skb(pkt_len + 2);
if (skbn != NULL) {
skb_reserve(skbn, 2); /* align IP header */
- memcpy(skbn->data, skb->data, pkt_len);
+ skb_copy_from_linear_data(skb,
+ skbn->data, pkt_len);
/* swap */
skbt = skb;
skb = skbn;
skbn = dev_alloc_skb(ENET_RX_FRSIZE);
if (skbn != NULL) {
- skb->dev = dev;
skb_put(skb, pkt_len); /* Make room */
skb->protocol = eth_type_trans(skb, dev);
received++;
break;
}
fep->rx_skbuff[i] = skb;
- skb->dev = dev;
CBDW_BUFADDR(bdp,
dma_map_single(fep->dev, skb->data,
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
/* Tell the controller what the protocol is */
/* And provide the already calculated phcs */
- if (skb->nh.iph->protocol == IPPROTO_UDP) {
+ if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
flags |= TXFCB_UDP;
- fcb->phcs = skb->h.uh->check;
+ fcb->phcs = udp_hdr(skb)->check;
} else
- fcb->phcs = skb->h.th->check;
+ fcb->phcs = udp_hdr(skb)->check;
/* l3os is the distance between the start of the
* frame (skb->data) and the start of the IP hdr.
* l4os is the distance between the start of the
* l3 hdr and the l4 hdr */
- fcb->l3os = (u16)(skb->nh.raw - skb->data - GMAC_FCB_LEN);
- fcb->l4os = (u16)(skb->h.raw - skb->nh.raw);
+ fcb->l3os = (u16)(skb_network_offset(skb) - GMAC_FCB_LEN);
+ fcb->l4os = skb_network_header_len(skb);
fcb->flags = flags;
}
*/
skb_reserve(skb, alignamount);
- skb->dev = dev;
-
bdp->bufPtr = dma_map_single(NULL, skb->data,
priv->rx_buffer_size, DMA_FROM_DEVICE);
printk(KERN_ERR "%s: rx_copybreak non-zero "
"not good with RX_CHECKSUM\n", dev->name);
#endif
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(hmp->pci_dev,
hmp->rx_ring[entry].addr,
#include <linux/ioport.h>
#include <linux/string.h>
#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
#include <linux/hdlcdrv.h>
#include <linux/baycom.h>
#include <linux/jiffies.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
/* --------------------------------------------------------------------- */
#define BAYCOM_DEBUG
}
skb->protocol = ax25_type_trans(skb, dev);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
dev->hard_header(skb, dev, ETH_P_BPQ, bpq->dest_addr, NULL, 0);
bpq->stats.tx_packets++;
bpq->stats.tx_bytes+=skb->len;
/* Transfer data to DMA buffer */
i = priv->tx_head;
- memcpy(priv->tx_buf[i], skb->data + 1, skb->len - 1);
+ skb_copy_from_linear_data_offset(skb, 1, priv->tx_buf[i], skb->len - 1);
priv->tx_len[i] = skb->len - 1;
/* Clear interrupts while we touch our circular buffers */
dev_kfree_skb_irq(skb);
break;
}
- memcpy(s->hdlctx.buffer, skb->data+1, pkt_len);
+ skb_copy_from_linear_data_offset(skb, 1,
+ s->hdlctx.buffer,
+ pkt_len);
dev_kfree_skb_irq(skb);
s->hdlctx.bp = s->hdlctx.buffer;
append_crc_ccitt(s->hdlctx.buffer, pkt_len);
dev_kfree_skb_any(skb);
break;
}
- memcpy(yp->tx_buf, skb->data + 1, yp->tx_len);
+ skb_copy_from_linear_data_offset(skb, 1,
+ yp->tx_buf,
+ yp->tx_len);
dev_kfree_skb_any(skb);
yp->tx_count = 0;
yp->tx_crcl = 0x21;
u_char *ptr;
skb_reserve(skb,2);
- skb->dev = dev;
/* ptr to start of the sk_buff data area */
skb_put(skb, pkt_len);
dev_kfree_skb(dev->rx_sg_skb);
dev->rx_sg_skb = NULL;
} else {
- cacheable_memcpy(dev->rx_sg_skb->tail,
+ cacheable_memcpy(skb_tail_pointer(dev->rx_sg_skb),
dev->rx_skb[slot]->data, len);
skb_put(dev->rx_sg_skb, len);
emac_recycle_rx_skb(dev, slot, len);
skb_put(skb, len);
push_packet:
- skb->dev = dev->ndev;
skb->protocol = eth_type_trans(skb, dev->ndev);
emac_rx_csum(dev, skb, ctrl);
/* set up skb fields */
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_NONE;
skb_reserve(skb, offset);
skb_put(skb, length);
- skb->dev = netdev;
skb->protocol = eth_type_trans(skb, netdev);
netif_receive_skb(skb); /* send it up */
ip->rx_skbs[rx_entry] = NULL; /* Poison */
- new_skb->dev = priv_netdev(ip);
-
/* Because we reserve afterwards. */
skb_put(new_skb, (1664 + RX_OFFSET));
rxb = (struct ioc3_erxbuf *) new_skb->data;
}
ip->rx_skbs[i] = skb;
- skb->dev = dev;
/* Because we reserve afterwards. */
skb_put(skb, (1664 + RX_OFFSET));
* manually.
*/
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- int proto = ntohs(skb->nh.iph->protocol);
+ const struct iphdr *ih = ip_hdr(skb);
+ const int proto = ntohs(ih->protocol);
unsigned int csoff;
- struct iphdr *ih = skb->nh.iph;
uint32_t csum, ehsum;
uint16_t *eh;
csoff = ETH_HLEN + (ih->ihl << 2);
if (proto == IPPROTO_UDP) {
csoff += offsetof(struct udphdr, check);
- skb->h.uh->check = csum;
+ udp_hdr(skb)->check = csum;
}
if (proto == IPPROTO_TCP) {
csoff += offsetof(struct tcphdr, check);
- skb->h.th->check = csum;
+ tcp_hdr(skb)->check = csum;
}
w0 = ETXD_DOCHECKSUM | (csoff << ETXD_CHKOFF_SHIFT);
if (len <= 104) {
/* Short packet, let's copy it directly into the ring. */
- memcpy(desc->data, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, desc->data, skb->len);
if (len < ETH_ZLEN) {
/* Very short packet, pad with zeros at the end. */
memset(desc->data + len, 0, ETH_ZLEN - len);
self->stats.tx_bytes += skb->len;
- memcpy(self->tx_fifo.queue[self->tx_fifo.free].start, skb->data,
- skb->len);
-
+ skb_copy_from_linear_data(skb, self->tx_fifo.queue[self->tx_fifo.free].start,
+ skb->len);
self->tx_fifo.len++;
self->tx_fifo.free++;
/* Copy frame without CRC, CRC is removed by hardware*/
skb_put(skb, len);
- memcpy(skb->data, self->rx_buff.data, len);
+ skb_copy_to_linear_data(skb, self->rx_buff.data, len);
/* Move to next frame */
self->rx_buff.data += len;
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
self->netdev->last_rx = jiffies;
if (aup->speed == 4000000) {
/* FIR */
- memcpy((void *)pDB->vaddr, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, pDB->vaddr, skb->len);
ptxd->count_0 = skb->len & 0xff;
ptxd->count_1 = (skb->len >> 8) & 0xff;
skb_put(skb, count);
else
skb_put(skb, count-2);
- memcpy(skb->data, (void *)pDB->vaddr, count-2);
+ skb_copy_to_linear_data(skb, pDB->vaddr, count - 2);
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
prxd->count_0 = 0;
else
{
len = skb->len;
- memcpy (self->tx_bufs[self->txs], skb->data, len);
+ skb_copy_from_linear_data(skb, self->tx_bufs[self->txs], len);
}
self->ring->tx[self->txs].len = len & 0x0fff;
skb_reserve (skb, 1);
skb_put (skb, len);
- memcpy (skb->data, self->rx_bufs[self->rxs], len);
-
+ skb_copy_to_linear_data(skb, self->rx_bufs[self->rxs],
+ len);
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons (ETH_P_IRDA);
}
else
goto drop;
}
- memcpy(self->tx_buff + self->header_length, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, self->tx_buff + self->header_length, skb->len);
/* Change setting for next frame */
if (self->capability & IUC_STIR421X) {
if(docopy) {
/* Copy packet, so we can recycle the original */
- memcpy(newskb->data, skb->data, urb->actual_length);
+ skb_copy_from_linear_data(skb, newskb->data, urb->actual_length);
/* Deliver this new skb */
dataskb = newskb;
/* And hook the old skb to the URB
/* Ask the networking layer to queue the packet for the IrDA stack */
dataskb->dev = self->netdev;
- dataskb->mac.raw = dataskb->data;
+ skb_reset_mac_header(dataskb);
dataskb->protocol = htons(ETH_P_IRDA);
len = dataskb->len;
netif_rx(dataskb);
/* Setup a communication between mcs7780 and agilent chip. */
static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs)
{
- IRDA_WARNING("This transceiver type is not supported yet.");
+ IRDA_WARNING("This transceiver type is not supported yet.\n");
return 1;
}
/* Setup a communication between mcs7780 and sharp chip. */
static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs)
{
- IRDA_WARNING("This transceiver type is not supported yet.");
+ IRDA_WARNING("This transceiver type is not supported yet.\n");
return 1;
}
break;
default:
- IRDA_WARNING("Unknown transceiver type: %d",
+ IRDA_WARNING("Unknown transceiver type: %d\n",
mcs->transceiver_type);
ret = 1;
}
return ret;
error:
- IRDA_ERROR("%s", msg);
+ IRDA_ERROR("%s\n", msg);
return ret;
}
buf[0] = len & 0xff;
buf[1] = (len >> 8) & 0xff;
/* copy the data into the tx buffer. */
- memcpy(buf+2, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, buf + 2, skb->len);
/* put the fcs in the last four bytes in little endian order. */
buf[len - 4] = fcs & 0xff;
buf[len - 3] = (fcs >> 8) & 0xff;
buf[0] = len & 0xff;
buf[1] = (len >> 8) & 0xff;
/* copy the data */
- memcpy(buf+2, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, buf + 2, skb->len);
/* put the fcs in last two bytes in little endian order. */
buf[len - 2] = fcs & 0xff;
buf[len - 1] = (fcs >> 8) & 0xff;
}
skb_reserve(skb, 1);
- memcpy(skb->data, buf, new_len);
+ skb_copy_to_linear_data(skb, buf, new_len);
skb_put(skb, new_len);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
skb->dev = mcs->netdev;
}
skb_reserve(skb, 1);
- memcpy(skb->data, buf, new_len);
+ skb_copy_to_linear_data(skb, buf, new_len);
skb_put(skb, new_len);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
skb->dev = mcs->netdev;
} while(cnt++ < 100 && (rval & MCS_IRINTX));
if(cnt >= 100) {
- IRDA_ERROR("unable to change speed");
+ IRDA_ERROR("unable to change speed\n");
ret = -EIO;
goto error;
}
default:
ret = 1;
- IRDA_WARNING("Unknown transceiver type: %d",
+ IRDA_WARNING("Unknown transceiver type: %d\n",
mcs->transceiver_type);
}
if (unlikely(ret))
sprintf(hwname, "usb#%d", mcs->usbdev->devnum);
mcs->irlap = irlap_open(netdev, &mcs->qos, hwname);
if (!mcs->irlap) {
- IRDA_ERROR("mcs7780: irlap_open failed");
+ IRDA_ERROR("mcs7780: irlap_open failed\n");
goto error2;
}
mcs->out_buf, wraplen, mcs_send_irq, mcs);
if ((ret = usb_submit_urb(mcs->tx_urb, GFP_ATOMIC))) {
- IRDA_ERROR("failed tx_urb: %d", ret);
+ IRDA_ERROR("failed tx_urb: %d\n", ret);
switch (ret) {
case -ENODEV:
case -EPIPE:
if (!ndev)
goto error1;
- IRDA_DEBUG(1, "MCS7780 USB-IrDA bridge found at %d.", udev->devnum);
+ IRDA_DEBUG(1, "MCS7780 USB-IrDA bridge found at %d.\n", udev->devnum);
/* what is it realy for? */
SET_MODULE_OWNER(ndev);
ret = usb_reset_configuration(udev);
if (ret != 0) {
- IRDA_ERROR("mcs7780: usb reset configuration failed");
+ IRDA_ERROR("mcs7780: usb reset configuration failed\n");
goto error2;
}
if (ret != 0)
goto error2;
- IRDA_DEBUG(1, "IrDA: Registered MosChip MCS7780 device as %s",
+ IRDA_DEBUG(1, "IrDA: Registered MosChip MCS7780 device as %s\n",
ndev->name);
mcs->transceiver_type = transceiver_type;
free_netdev(mcs->netdev);
usb_set_intfdata(intf, NULL);
- IRDA_DEBUG(0, "MCS7780 now disconnected.");
+ IRDA_DEBUG(0, "MCS7780 now disconnected.\n");
}
/* Module insertion */
/* register this driver with the USB subsystem */
result = usb_register(&mcs_driver);
if (result)
- IRDA_ERROR("usb_register failed. Error number %d", result);
+ IRDA_ERROR("usb_register failed. Error number %d\n", result);
return result;
}
self->stats.tx_bytes += skb->len;
- memcpy(self->tx_fifo.queue[self->tx_fifo.free].start, skb->data,
- skb->len);
-
+ skb_copy_from_linear_data(skb, self->tx_fifo.queue[self->tx_fifo.free].start,
+ skb->len);
self->tx_fifo.len++;
self->tx_fifo.free++;
/* Copy frame without CRC */
if (self->io.speed < 4000000) {
skb_put(skb, len-2);
- memcpy(skb->data, self->rx_buff.data, len-2);
+ skb_copy_to_linear_data(skb,
+ self->rx_buff.data,
+ len - 2);
} else {
skb_put(skb, len-4);
- memcpy(skb->data, self->rx_buff.data, len-4);
+ skb_copy_to_linear_data(skb,
+ self->rx_buff.data,
+ len - 4);
}
/* Move to next frame */
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
self->netdev->last_rx = jiffies;
/* Align IP header to 20 bytes */
skb_reserve(skb, 1);
- memcpy(skb->data, si->dma_rx_buff, len);
+ skb_copy_to_linear_data(skb, si->dma_rx_buff, len);
skb_put(skb, len);
/* Feed it to IrLAP */
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
unsigned long mtt = irda_get_mtt(skb);
si->dma_tx_buff_len = skb->len;
- memcpy(si->dma_tx_buff, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, si->dma_tx_buff, skb->len);
if (mtt)
while ((unsigned)(OSCR - si->last_oscr)/4 < mtt)
skb_put(skb, len);
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
si->stats.rx_packets++;
si->stats.rx_bytes += len;
{
/* Base address 0x2E or 0x4E */
{ "47N227", KEY55_1|FIR|SERx4, 0x5a, 0x00 },
+ { "47N227", KEY55_1|FIR|SERx4, 0x7a, 0x00 },
{ "47N267", KEY55_1|FIR|SERx4, 0x5e, 0x00 },
{ NULL }
};
self->new_speed = speed;
}
- memcpy(self->tx_buff.head, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, self->tx_buff.head, skb->len);
self->tx_buff.len = skb->len;
self->tx_buff.data = self->tx_buff.head;
self->stats.rx_bytes += len;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
}
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <net/irda/irda.h>
-#include <net/irda/irlap.h>
#include <net/irda/irda_device.h>
#include <net/irda/wrapper.h>
#include <net/irda/crc.h>
}
skb_reserve(nskb, 1);
skb = nskb;
- memcpy(nskb->data, rx_buff->data, len);
+ skb_copy_to_linear_data(nskb, rx_buff->data, len);
} else {
nskb = dev_alloc_skb(rx_buff->truesize);
if (unlikely(!nskb)) {
skb_put(skb, len);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
skb->dev = stir->netdev;
self->tx_fifo.tail += skb->len;
self->stats.tx_bytes += skb->len;
- memcpy(self->tx_fifo.queue[self->tx_fifo.free].start, skb->data,
- skb->len);
+ skb_copy_from_linear_data(skb,
+ self->tx_fifo.queue[self->tx_fifo.free].start, skb->len);
self->tx_fifo.len++;
self->tx_fifo.free++;
//F01 if (self->tx_fifo.len == 1) {
self->stats.rx_bytes += len;
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
return TRUE;
skb_reserve(skb, 1);
skb_put(skb, len - 4);
- memcpy(skb->data, self->rx_buff.data, len - 4);
+ skb_copy_to_linear_data(skb, self->rx_buff.data, len - 4);
IRDA_DEBUG(2, "%s(): len=%x.rx_buff=%p\n", __FUNCTION__,
len - 4, self->rx_buff.data);
self->stats.rx_bytes += len;
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
}
skb_reserve(skb, 1);
skb_put(skb, len - 4 + 1);
- memcpy(skb->data, self->rx_buff.data, len - 4 + 1);
+ skb_copy_to_linear_data(skb, self->rx_buff.data, len - 4 + 1);
st_fifo->tail++;
st_fifo->len++;
if (st_fifo->tail > MAX_RX_WINDOW)
self->stats.rx_bytes += len;
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
if (st_fifo->len < (MAX_RX_WINDOW + 2)) {
}
skb_reserve(skb, 1);
skb_put(skb, len - 4);
- memcpy(skb->data, self->rx_buff.data, len - 4);
+ skb_copy_to_linear_data(skb, self->rx_buff.data, len - 4);
IRDA_DEBUG(2, "%s(): len=%x.head=%x\n", __FUNCTION__,
len - 4, st_fifo->head);
self->stats.rx_bytes += len;
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
} //while
rd->skb = NULL;
skb->dev = ndev;
memcpy(skb_put(skb,len), rd->buf, len);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
if (in_interrupt())
netif_rx(skb);
else
goto drop;
}
else
- memcpy(rd->buf, skb->data, len);
+ skb_copy_from_linear_data(skb, rd->buf, len);
}
rd->skb = skb; /* remember skb for tx-complete stats */
/* Decide if we should use PIO or DMA transfer */
if (self->io.speed > PIO_MAX_SPEED) {
self->tx_buff.data = self->tx_buff.head;
- memcpy(self->tx_buff.data, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, self->tx_buff.data, skb->len);
self->tx_buff.len = skb->len;
mtt = irda_get_mtt(skb);
/* Copy frame without CRC */
if (self->io.speed < 4000000) {
skb_put(skb, len-2);
- memcpy(skb->data, self->rx_buff.data, len-2);
+ skb_copy_to_linear_data(skb,
+ self->rx_buff.data,
+ len - 2);
} else {
skb_put(skb, len-4);
- memcpy(skb->data, self->rx_buff.data, len-4);
+ skb_copy_to_linear_data(skb,
+ self->rx_buff.data,
+ len - 4);
}
/* Move to next frame */
self->stats.rx_packets++;
skb->dev = self->netdev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = htons(ETH_P_IRDA);
netif_rx(skb);
self->netdev->last_rx = jiffies;
}
skb_put(skb, length);
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_NONE;
netif_rx(skb); /* send it up */
if (likely(skb_is_gso(skb))) {
struct ixgb_buffer *buffer_info;
+ struct iphdr *iph;
+
if (skb_header_cloned(skb)) {
err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
if (err)
return err;
}
- hdr_len = ((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
mss = skb_shinfo(skb)->gso_size;
- skb->nh.iph->tot_len = 0;
- skb->nh.iph->check = 0;
- skb->h.th->check = ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- 0, IPPROTO_TCP, 0);
- ipcss = skb->nh.raw - skb->data;
- ipcso = (void *)&(skb->nh.iph->check) - (void *)skb->data;
- ipcse = skb->h.raw - skb->data - 1;
- tucss = skb->h.raw - skb->data;
- tucso = (void *)&(skb->h.th->check) - (void *)skb->data;
+ iph = ip_hdr(skb);
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP, 0);
+ ipcss = skb_network_offset(skb);
+ ipcso = (void *)&(iph->check) - (void *)skb->data;
+ ipcse = skb_transport_offset(skb) - 1;
+ tucss = skb_transport_offset(skb);
+ tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
tucse = 0;
i = adapter->tx_ring.next_to_use;
if(likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
struct ixgb_buffer *buffer_info;
- css = skb->h.raw - skb->data;
+ css = skb_transport_offset(skb);
cso = css + skb->csum_offset;
i = adapter->tx_ring.next_to_use;
netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
if (new_skb) {
skb_reserve(new_skb, NET_IP_ALIGN);
- memcpy(new_skb->data - NET_IP_ALIGN,
- skb->data - NET_IP_ALIGN,
- length + NET_IP_ALIGN);
+ skb_copy_to_linear_data_offset(new_skb,
+ -NET_IP_ALIGN,
+ (skb->data -
+ NET_IP_ALIGN),
+ (length +
+ NET_IP_ALIGN));
/* save the skb in buffer_info as good */
buffer_info->skb = skb;
skb = new_skb;
skb = dev_alloc_skb(desc->pkt_length + 2);
if (likely(skb != NULL)) {
- skb->dev = nds[desc->channel];
skb_reserve(skb, 2);
eth_copy_and_sum(skb, buf, desc->pkt_length, 0);
skb_put(skb, desc->pkt_length);
- skb->protocol = eth_type_trans(skb, skb->dev);
+ skb->protocol = eth_type_trans(skb, nds[desc->channel]);
skb->dev->last_rx = jiffies;
if (lance_debug > 5)
printk("%s: bouncing a high-memory packet (%#x).\n",
dev->name, (u32)isa_virt_to_bus(skb->data));
- memcpy(&lp->tx_bounce_buffs[entry], skb->data, skb->len);
+ skb_copy_from_linear_data(skb, &lp->tx_bounce_buffs[entry], skb->len);
lp->tx_ring[entry].base =
((u32)isa_virt_to_bus((lp->tx_bounce_buffs + entry)) & 0xffffff) | 0x83000000;
dev_kfree_skb(skb);
}
break;
}
- skb->dev = dev;
skb_reserve(skb,2); /* 16 byte align */
skb_put(skb,pkt_len); /* Make room */
eth_copy_and_sum(skb,
lp->stats.rx_dropped++;
}
else {
- skb->dev = dev;
if (!rx_in_place) {
/* 16 byte align the data fields */
dma_sync_single_for_cpu(lp->dev, (dma_addr_t)WSWAPchar(rbd->b_data), PKT_BUF_SZ, DMA_FROM_DEVICE);
else
{
skb_reserve(skb,2); /* IP headers on 16 byte boundaries */
- skb->dev = dev;
skb_put(skb, pkt_len); /* Make room */
ei_block_input(dev, pkt_len, skb, current_offset + sizeof(rx_frame));
skb->protocol=eth_type_trans(skb,dev);
#ifdef LOOPBACK_TSO
static void emulate_large_send_offload(struct sk_buff *skb)
{
- struct iphdr *iph = skb->nh.iph;
- struct tcphdr *th = (struct tcphdr*)(skb->nh.raw + (iph->ihl * 4));
+ struct iphdr *iph = ip_hdr(skb);
+ struct tcphdr *th = (struct tcphdr *)(skb_network_header(skb) +
+ (iph->ihl * 4));
unsigned int doffset = (iph->ihl + th->doff) * 4;
unsigned int mtu = skb_shinfo(skb)->gso_size + doffset;
unsigned int offset = 0;
if (!nskb)
break;
skb_reserve(nskb, 32);
- nskb->mac.raw = nskb->data - 14;
- nskb->nh.raw = nskb->data;
- iph = nskb->nh.iph;
- memcpy(nskb->data, skb->nh.raw, doffset);
+ skb_set_mac_header(nskb, -ETH_HLEN);
+ skb_reset_network_header(nskb);
+ iph = ip_hdr(nskb);
+ skb_copy_to_linear_data(nskb, skb_network_header(skb),
+ doffset);
if (skb_copy_bits(skb,
doffset + offset,
nskb->data + doffset,
memcpy(nskb->cb, skb->cb, sizeof(skb->cb));
nskb->pkt_type = skb->pkt_type;
- th = (struct tcphdr*)(nskb->nh.raw + iph->ihl*4);
+ th = (struct tcphdr *)(skb_network_header(nskb) + iph->ihl * 4);
iph->tot_len = htons(frag_size + doffset);
iph->id = htons(id);
iph->check = 0;
skb_orphan(skb);
skb->protocol = eth_type_trans(skb,dev);
- skb->dev = dev;
#ifndef LOOPBACK_MUST_CHECKSUM
skb->ip_summed = CHECKSUM_UNNECESSARY;
#endif
#ifdef LOOPBACK_TSO
if (skb_is_gso(skb)) {
BUG_ON(skb->protocol != htons(ETH_P_IP));
- BUG_ON(skb->nh.iph->protocol != IPPROTO_TCP);
+ BUG_ON(ip_hdr(skb)->protocol != IPPROTO_TCP);
emulate_large_send_offload(skb);
return 0;
return 0;
}
-static struct net_device_stats loopback_stats;
-
static struct net_device_stats *get_stats(struct net_device *dev)
{
- struct net_device_stats *stats = &loopback_stats;
+ struct net_device_stats *stats = &dev->stats;
unsigned long bytes = 0;
unsigned long packets = 0;
int i;
struct net_device loopback_dev = {
.name = "lo",
.get_stats = &get_stats,
- .priv = &loopback_stats,
.mtu = (16 * 1024) + 20 + 20 + 12,
.hard_start_xmit = loopback_xmit,
.hard_header = eth_header,
return 1;
}
- skb->dev = dev;
memcpy(skb_put(skb,pkt_len), rfd->data, pkt_len);
skb->protocol = eth_type_trans(skb,dev);
return;
}
skb_put(skb, length);
- skb->dev = dev;
memcpy_fromio(skb->data, dev->mem_start + PP_RxFrame, length);
}
skb_reserve(skb, RX_OFFSET);
- skb->dev = bp->dev;
skb->ip_summed = CHECKSUM_NONE;
skb_put(skb, len);
BUG_ON(frag != last_frag);
frag_len = len - offset;
}
- memcpy(skb->data + offset,
- bp->rx_buffers + (RX_BUFFER_SIZE * frag),
- frag_len);
+ skb_copy_to_linear_data_offset(skb, offset,
+ (bp->rx_buffers +
+ (RX_BUFFER_SIZE * frag)),
+ frag_len);
offset += RX_BUFFER_SIZE;
bp->rx_ring[frag].addr &= ~MACB_BIT(RX_USED);
wmb();
int i;
dev_dbg(&bp->pdev->dev,
"start_xmit: len %u head %p data %p tail %p end %p\n",
- skb->len, skb->head, skb->data, skb->tail, skb->end);
+ skb->len, skb->head, skb->data,
+ skb_tail_pointer(skb), skb_end_pointer(skb));
dev_dbg(&bp->pdev->dev,
"data:");
for (i = 0; i < 16; i++)
else /* Ethernet header; mace includes FCS */
nb -= 8;
skb_put(skb, nb);
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
mp->stats.rx_bytes += skb->len;
netif_rx(skb);
mp->stats.tx_bytes += skb->len;
/* We need to copy into our xmit buffer to take care of alignment and caching issues */
-
- memcpy((void *) mp->tx_ring, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, mp->tx_ring, skb->len);
/* load the Tx DMA and fire it off */
skb_reserve(skb,2);
memcpy(skb_put(skb, mf->len), mf->data, mf->len);
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
/* Write metadata, and then pass to the receive level */
skb_put(skb_c, len);
priv->rx_skbs[priv->rx_write] = skb;
- skb_c->dev = dev;
skb_c->protocol = eth_type_trans(skb_c, dev);
dev->last_rx = jiffies;
priv->stats.rx_packets++;
desc->header.raw = METH_TX_CMD_INT_EN | (len-1) | ((128-len) << 16);
/* maybe I should set whole thing to 0 first... */
- memcpy(desc->data.dt + (120 - len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, desc->data.dt + (120 - len), skb->len);
if (skb->len < len)
memset(desc->data.dt + 120 - len + skb->len, 0, len-skb->len);
}
/* unaligned part */
if (unaligned_len) {
- memcpy(desc->data.dt + (120 - unaligned_len),
- skb->data, unaligned_len);
+ skb_copy_from_linear_data(skb, desc->data.dt + (120 - unaligned_len),
+ unaligned_len);
desc->header.raw |= (128 - unaligned_len) << 16;
}
desc->header.raw = METH_TX_CMD_INT_EN | TX_CATBUF1 | TX_CATBUF2| (skb->len - 1);
/* unaligned part */
if (unaligned_len){
- memcpy(desc->data.dt + (120 - unaligned_len),
- skb->data, unaligned_len);
+ skb_copy_from_linear_data(skb, desc->data.dt + (120 - unaligned_len),
+ unaligned_len);
desc->header.raw |= (128 - unaligned_len) << 16;
}
if (ioiocpy_frommipsnet(dev, skb_put(skb, len), len))
return -EFAULT;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_UNNECESSARY;
* received packet
*/
skb_put(skb, pkt_info.byte_cnt - 4);
- skb->dev = dev;
if (pkt_info.cmd_sts & ETH_LAYER_4_CHECKSUM_OK) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
cmd_sts |= ETH_GEN_TCP_UDP_CHECKSUM |
ETH_GEN_IP_V_4_CHECKSUM |
- skb->nh.iph->ihl << ETH_TX_IHL_SHIFT;
+ ip_hdr(skb)->ihl << ETH_TX_IHL_SHIFT;
- switch (skb->nh.iph->protocol) {
+ switch (ip_hdr(skb)->protocol) {
case IPPROTO_UDP:
cmd_sts |= ETH_UDP_FRAME;
- desc->l4i_chk = skb->h.uh->check;
+ desc->l4i_chk = udp_hdr(skb)->check;
break;
case IPPROTO_TCP:
- desc->l4i_chk = skb->h.th->check;
+ desc->l4i_chk = tcp_hdr(skb)->check;
break;
default:
BUG();
* skb_pull() (for ether_pad and eth_type_trans()) requires
* the beginning of the packet in skb_headlen(), move it
* manually */
- memcpy(skb->data, va, hlen);
+ skb_copy_to_linear_data(skb, va, hlen);
skb_shinfo(skb)->frags[0].page_offset += hlen;
skb_shinfo(skb)->frags[0].size -= hlen;
skb->data_len -= hlen;
skb_shinfo(skb)->nr_frags = 0;
}
skb->protocol = eth_type_trans(skb, dev);
- skb->dev = dev;
if (mgp->csum_flag) {
if ((skb->protocol == htons(ETH_P_IP)) ||
odd_flag = 0;
flags = (MXGEFW_FLAGS_NO_TSO | MXGEFW_FLAGS_FIRST);
if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
- cksum_offset = (skb->h.raw - skb->data);
+ cksum_offset = skb_transport_offset(skb);
pseudo_hdr_offset = cksum_offset + skb->csum_offset;
/* If the headers are excessively large, then we must
* fall back to a software checksum */
* send loop that we are still in the
* header portion of the TSO packet.
* TSO header must be at most 134 bytes long */
- cum_len = -((skb->h.raw - skb->data) + (skb->h.th->doff << 2));
+ cum_len = -(skb_transport_offset(skb) + tcp_hdrlen(skb));
/* for TSO, pseudo_hdr_offset holds mss.
* The firmware figures out where to put
struct ethhdr *eth;
unsigned char *rawp;
- skb->mac.raw = (((unsigned char *)skb->data) + MYRI_PAD_LEN);
+ skb_set_mac_header(skb, MYRI_PAD_LEN);
skb_pull(skb, dev->hard_header_len);
eth = eth_hdr(skb);
copy_skb->dev = dev;
DRX(("resv_and_put "));
skb_put(copy_skb, len);
- memcpy(copy_skb->data, skb->data, len);
+ skb_copy_from_linear_data(skb, copy_skb->data, len);
/* Reuse original ring buffer. */
DRX(("reuse "));
* without copying to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + RX_OFFSET)) != NULL) {
- skb->dev = dev;
/* 16 byte align the IP header */
skb_reserve(skb, RX_OFFSET);
pci_dma_sync_single_for_cpu(np->pci_dev,
FIFO_PTR_SEGMENT(seg) | FIFO_PTR_FRAMENO(frameno));
ndev->last_rx = jiffies;
- skb->dev = ndev;
skb->protocol = eth_type_trans(skb, ndev);
netif_rx(skb);
priv->stats.rx_packets++;
#include "netxen_nic_hw.h"
#include "netxen_nic_phan_reg.h"
+#include <net/ip.h>
+
/* PCI Windowing for DDR regions. */
#define ADDR_IN_RANGE(addr, low, high) \
struct cmd_desc_type0 *desc, struct sk_buff *skb)
{
if (desc->mss) {
- desc->total_hdr_length = sizeof(struct ethhdr) +
- ((skb->nh.iph)->ihl * sizeof(u32)) +
- ((skb->h.th)->doff * sizeof(u32));
+ desc->total_hdr_length = (sizeof(struct ethhdr) +
+ ip_hdrlen(skb) + tcp_hdrlen(skb));
netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO);
} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
- if (skb->nh.iph->protocol == IPPROTO_TCP) {
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP) {
netxen_set_cmd_desc_opcode(desc, TX_TCP_PKT);
- } else if (skb->nh.iph->protocol == IPPROTO_UDP) {
+ } else if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
netxen_set_cmd_desc_opcode(desc, TX_UDP_PKT);
} else {
return;
}
}
adapter->stats.xmitcsummed++;
- desc->tcp_hdr_offset = skb->h.raw - skb->data;
- desc->ip_hdr_offset = skb->nh.raw - skb->data;
+ desc->tcp_hdr_offset = skb_transport_offset(skb);
+ desc->ip_hdr_offset = skb_network_offset(skb);
}
int netxen_is_flash_supported(struct netxen_adapter *adapter)
port->stats.csummed++;
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
- skb->dev = netdev;
if (desc_ctx == RCV_DESC_LRO_CTXID) {
/* True length was only available on the last pkt */
skb_put(skb, buffer->lro_length);
#include <linux/dma-mapping.h>
#include <linux/vmalloc.h>
+#include <net/ip.h>
MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
MODULE_LICENSE("GPL");
if (skb_shinfo(skb)->gso_size > 0) {
no_of_desc++;
- if (((skb->nh.iph)->ihl * sizeof(u32)) +
- ((skb->h.th)->doff * sizeof(u32)) +
- sizeof(struct ethhdr) >
+ if ((ip_hdrlen(skb) + tcp_hdrlen(skb) +
+ sizeof(struct ethhdr)) >
(sizeof(struct cmd_desc_type0) - 2)) {
no_of_desc++;
}
/* copy the next 64 bytes - should be enough except
* for pathological case
*/
- memcpy((void *)hwdesc, (void *)(skb->data) +
- first_hdr_len, hdr_len - first_hdr_len);
+ skb_copy_from_linear_data_offset(skb, first_hdr_len,
+ hwdesc,
+ (hdr_len -
+ first_hdr_len));
producer = get_next_index(producer, max_tx_desc_count);
}
}
return;
}
- skb->dev = dev;
skb_reserve(skb, 2);
/* Read packet into buffer */
skb = (struct sk_buff *) dev_alloc_skb(totlen+2);
if(skb != NULL)
{
- skb->dev = dev;
skb_reserve(skb,2);
skb_put(skb,totlen);
eth_copy_and_sum(skb,(char *) p->base+(unsigned long) rbd->buffer,totlen,0);
else
#endif
{
- memcpy((char *)p->xmit_cbuffs[p->xmit_count],(char *)(skb->data),skb->len);
+ skb_copy_from_linear_data(skb, (char *) p->xmit_cbuffs[p->xmit_count], skb->len);
len = skb->len;
if (len < ETH_ZLEN) {
len = ETH_ZLEN;
printk(KERN_WARNING "%s: unable to allocate %s memory.\n",dev->name,what);
return NULL;
}
- skb->dev = dev;
skb_reserve(skb,2+16);
skb_put(skb,R_BUF_SIZE); /* grab the whole space .. (not necessary) */
ptr = skb->data;
if(skb)
{
skb_reserve(skb,2);
- skb->dev = dev;
#ifdef RCV_VIA_SKB
if( (unsigned long) (skb->data + R_BUF_SIZE) > 0x1000000) {
skb_put(skb,len);
if( (unsigned long) (skb->data + skb->len) > 0x1000000) {
#endif
- memcpy((char *) p->tmdbounce[p->tmdbouncenum] ,(char *)skb->data,
- (skb->len > T_BUF_SIZE) ? T_BUF_SIZE : skb->len);
+ skb_copy_from_linear_data(skb, p->tmdbounce[p->tmdbouncenum],
+ skb->len > T_BUF_SIZE ? T_BUF_SIZE :
+ skb->len);
if (len > skb->len)
memset((char *)p->tmdbounce[p->tmdbouncenum]+skb->len, 0, len-skb->len);
dev_kfree_skb (skb);
res &= 0xf;
skb_reserve(skb, res);
- skb->dev = ndev;
if (gfp != GFP_ATOMIC)
spin_lock_irqsave(&dev->rx_info.lock, flags);
res = ns83820_add_rx_skb(dev, skb);
extsts = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
extsts |= EXTSTS_IPPKT;
- if (IPPROTO_TCP == skb->nh.iph->protocol)
+ if (IPPROTO_TCP == ip_hdr(skb)->protocol)
extsts |= EXTSTS_TCPPKT;
- else if (IPPROTO_UDP == skb->nh.iph->protocol)
+ else if (IPPROTO_UDP == ip_hdr(skb)->protocol)
extsts |= EXTSTS_UDPPKT;
}
break;
}
- skb->dev = dev;
-
dma = pci_map_single(mac->dma_pdev, skb->data, skb->len,
PCI_DMA_FROMDEVICE);
dflags = XCT_MACTX_O | XCT_MACTX_ST | XCT_MACTX_SS | XCT_MACTX_CRC_PAD;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- switch (skb->nh.iph->protocol) {
+ const unsigned char *nh = skb_network_header(skb);
+
+ switch (ip_hdr(skb)->protocol) {
case IPPROTO_TCP:
dflags |= XCT_MACTX_CSUM_TCP;
- dflags |= XCT_MACTX_IPH((skb->h.raw - skb->nh.raw) >> 2);
- dflags |= XCT_MACTX_IPO(skb->nh.raw - skb->data);
+ dflags |= XCT_MACTX_IPH(skb_network_header_len(skb) >> 2);
+ dflags |= XCT_MACTX_IPO(nh - skb->data);
break;
case IPPROTO_UDP:
dflags |= XCT_MACTX_CSUM_UDP;
- dflags |= XCT_MACTX_IPH((skb->h.raw - skb->nh.raw) >> 2);
- dflags |= XCT_MACTX_IPO(skb->nh.raw - skb->data);
+ dflags |= XCT_MACTX_IPH(skb_network_header_len(skb) >> 2);
+ dflags |= XCT_MACTX_IPO(nh - skb->data);
break;
}
}
tp->tx_info[entry].skb = skb;
/* tp->tx_info[entry].mapping = 0; */
- memcpy (tp->tx_buf[entry], skb->data, skb->len);
+ skb_copy_from_linear_data(skb, tp->tx_buf[entry], skb->len);
/* Note: the chip doesn't have auto-pad! */
NETDRV_W32 (TxStatus0 + (entry * sizeof(u32)),
skb = dev_alloc_skb (pkt_size + 2);
if (skb) {
- skb->dev = dev;
skb_reserve (skb, 2); /* 16 byte align the IP fields. */
eth_copy_and_sum (skb, &rx_ring[ring_offset + 4], pkt_size, 0);
DEBUG(3, " Receiving packet size %d status %4.4x.\n",
pkt_len, rx_status);
if (skb != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2);
insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
((pkt_len+3)>>2));
DEBUG(3, " Receiving packet size %d status %4.4x.\n",
pkt_len, rx_status);
if (skb != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2);
insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
(pkt_len+3)>>2);
ei_block_output(dev, length, skb->data, output_page);
else {
memset(packet, 0, ETH_ZLEN);
- memcpy(packet, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, packet, skb->len);
ei_block_output(dev, length, packet, output_page);
}
else
{
skb_reserve(skb,2); /* IP headers on 16 byte boundaries */
- skb->dev = dev;
skb_put(skb, pkt_len); /* Make room */
ei_block_input(dev, pkt_len, skb, current_offset + sizeof(rx_frame));
skb->protocol=eth_type_trans(skb,dev);
lp->stats.rx_dropped++;
break;
}
- skb->dev = dev;
skb_reserve(skb, 2);
insw(ioaddr + DATAPORT, skb_put(skb, pkt_len),
skb = dev_alloc_skb(pkt_len+2);
if (skb != NULL) {
- skb->dev = dev;
-
skb_reserve(skb, 2);
insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1);
if (pkt_len & 1)
- *(skb->tail-1) = inb(ioaddr + AM2150_RCV);
+ *(skb_tail_pointer(skb) - 1) = inb(ioaddr + AM2150_RCV);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb); /* Send the packet to the upper (protocol) layers. */
(packet_length+1)>>1);
skb->protocol = eth_type_trans(skb, dev);
- skb->dev = dev;
netif_rx(skb);
dev->last_rx = jiffies;
smc->stats.rx_packets++;
(pktlen+1)>>1);
}
skb->protocol = eth_type_trans(skb, dev);
- skb->dev = dev;
netif_rx(skb);
dev->last_rx = jiffies;
lp->stats.rx_packets++;
PCI_DMA_FROMDEVICE);
skb_put(skb, pkt_len);
lp->rx_skbuff[entry] = newskb;
- newskb->dev = dev;
lp->rx_dma_addr[entry] =
pci_map_single(lp->pci_dev,
newskb->data,
struct ethhdr *eth;
unsigned char *rawp;
- skb->mac.raw=skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb,dev->hard_header_len);
eth = eth_hdr(skb);
/* check for address/control and protocol compression */
p = skb->data;
- if (p[0] == PPP_ALLSTATIONS && p[1] == PPP_UI) {
+ if (p[0] == PPP_ALLSTATIONS) {
/* chop off address/control */
- if (skb->len < 3)
+ if (p[1] != PPP_UI || skb->len < 3)
goto err;
p = skb_pull(skb, 2);
}
#define PF_TO_PPP(pf) PF_TO_X(pf, struct ppp)
#define PF_TO_CHANNEL(pf) PF_TO_X(pf, struct channel)
-#define ROUNDUP(n, x) (((n) + (x) - 1) / (x))
-
/*
* Data structure describing one ppp unit.
* A ppp unit corresponds to a ppp network interface device
*/
fragsize = len;
if (nfree > 1)
- fragsize = ROUNDUP(fragsize, nfree);
+ fragsize = DIV_ROUND_UP(fragsize, nfree);
/* nbigger channels get fragsize bytes, the rest get fragsize-1,
except if nbigger==0, then they all get fragsize. */
nbigger = len % nfree;
skb_pull_rcsum(skb, 2);
skb->dev = ppp->dev;
skb->protocol = htons(npindex_to_ethertype[npi]);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
netif_rx(skb);
ppp->dev->last_rx = jiffies;
}
return NULL;
}
skb_reserve(npkt,2);
- memcpy(skb_put(npkt,skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb,
+ skb_put(npkt, skb->len), skb->len);
kfree_skb(skb);
skb = npkt;
}
static inline struct pppox_sock *get_item_by_addr(struct sockaddr_pppox *sp)
{
- struct net_device *dev = NULL;
+ struct net_device *dev;
int ifindex;
dev = dev_get_by_name(sp->sa_addr.pppoe.dev);
return get_item(sp->sa_addr.pppoe.sid, sp->sa_addr.pppoe.remote, ifindex);
}
-static inline int set_item(struct pppox_sock *po)
-{
- int i;
-
- if (!po)
- return -EINVAL;
-
- write_lock_bh(&pppoe_hash_lock);
- i = __set_item(po);
- write_unlock_bh(&pppoe_hash_lock);
-
- return i;
-}
-
static inline struct pppox_sock *delete_item(unsigned long sid, char *addr, int ifindex)
{
struct pppox_sock *ret;
static void pppoe_flush_dev(struct net_device *dev)
{
int hash;
-
BUG_ON(dev == NULL);
- read_lock_bh(&pppoe_hash_lock);
+ write_lock_bh(&pppoe_hash_lock);
for (hash = 0; hash < PPPOE_HASH_SIZE; hash++) {
struct pppox_sock *po = item_hash_table[hash];
while (po != NULL) {
- if (po->pppoe_dev == dev) {
- struct sock *sk = sk_pppox(po);
-
- sock_hold(sk);
- po->pppoe_dev = NULL;
+ struct sock *sk = sk_pppox(po);
+ if (po->pppoe_dev != dev) {
+ po = po->next;
+ continue;
+ }
+ po->pppoe_dev = NULL;
+ dev_put(dev);
- /* We hold a reference to SK, now drop the
- * hash table lock so that we may attempt
- * to lock the socket (which can sleep).
- */
- read_unlock_bh(&pppoe_hash_lock);
- lock_sock(sk);
+ /* We always grab the socket lock, followed by the
+ * pppoe_hash_lock, in that order. Since we should
+ * hold the sock lock while doing any unbinding,
+ * we need to release the lock we're holding.
+ * Hold a reference to the sock so it doesn't disappear
+ * as we're jumping between locks.
+ */
- if (sk->sk_state &
- (PPPOX_CONNECTED | PPPOX_BOUND)) {
- pppox_unbind_sock(sk);
- dev_put(dev);
- sk->sk_state = PPPOX_ZOMBIE;
- sk->sk_state_change(sk);
- }
+ sock_hold(sk);
- release_sock(sk);
+ write_unlock_bh(&pppoe_hash_lock);
+ lock_sock(sk);
- sock_put(sk);
+ if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
+ pppox_unbind_sock(sk);
+ sk->sk_state = PPPOX_ZOMBIE;
+ sk->sk_state_change(sk);
+ }
- read_lock_bh(&pppoe_hash_lock);
+ release_sock(sk);
+ sock_put(sk);
- /* Now restart from the beginning of this
- * hash chain. We always NULL out pppoe_dev
- * so we are guaranteed to make forward
- * progress.
- */
- po = item_hash_table[hash];
- continue;
- }
- po = po->next;
+ /* Restart scan at the beginning of this hash chain.
+ * While the lock was dropped the chain contents may
+ * have changed.
+ */
+ write_lock_bh(&pppoe_hash_lock);
+ po = item_hash_table[hash];
}
}
- read_unlock_bh(&pppoe_hash_lock);
+ write_unlock_bh(&pppoe_hash_lock);
}
static int pppoe_device_event(struct notifier_block *this,
static int pppoe_rcv_core(struct sock *sk, struct sk_buff *skb)
{
struct pppox_sock *po = pppox_sk(sk);
- struct pppox_sock *relay_po = NULL;
+ struct pppox_sock *relay_po;
if (sk->sk_state & PPPOX_BOUND) {
- struct pppoe_hdr *ph = (struct pppoe_hdr *) skb->nh.raw;
+ struct pppoe_hdr *ph = pppoe_hdr(skb);
int len = ntohs(ph->length);
skb_pull_rcsum(skb, sizeof(struct pppoe_hdr));
if (pskb_trim_rcsum(skb, len))
if (!(skb = skb_share_check(skb, GFP_ATOMIC)))
goto out;
- ph = (struct pppoe_hdr *) skb->nh.raw;
+ ph = pppoe_hdr(skb);
po = get_item((unsigned long) ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
if (po != NULL)
if (!(skb = skb_share_check(skb, GFP_ATOMIC)))
goto out;
- ph = (struct pppoe_hdr *) skb->nh.raw;
+ ph = pppoe_hdr(skb);
if (ph->code != PADT_CODE)
goto abort;
{
struct sock *sk = sock->sk;
struct pppox_sock *po;
- int error = 0;
if (!sk)
return 0;
- if (sock_flag(sk, SOCK_DEAD))
+ lock_sock(sk);
+ if (sock_flag(sk, SOCK_DEAD)){
+ release_sock(sk);
return -EBADF;
+ }
pppox_unbind_sock(sk);
/* Signal the death of the socket. */
sk->sk_state = PPPOX_DEAD;
+
+ /* Write lock on hash lock protects the entire "po" struct from
+ * concurrent updates via pppoe_flush_dev. The "po" struct should
+ * be considered part of the hash table contents, thus protected
+ * by the hash table lock */
+ write_lock_bh(&pppoe_hash_lock);
+
po = pppox_sk(sk);
if (po->pppoe_pa.sid) {
- delete_item(po->pppoe_pa.sid, po->pppoe_pa.remote, po->pppoe_ifindex);
+ __delete_item(po->pppoe_pa.sid,
+ po->pppoe_pa.remote, po->pppoe_ifindex);
}
- if (po->pppoe_dev)
+ if (po->pppoe_dev) {
dev_put(po->pppoe_dev);
+ po->pppoe_dev = NULL;
+ }
- po->pppoe_dev = NULL;
+ write_unlock_bh(&pppoe_hash_lock);
sock_orphan(sk);
sock->sk = NULL;
skb_queue_purge(&sk->sk_receive_queue);
+ release_sock(sk);
sock_put(sk);
- return error;
+ return 0;
}
po->pppoe_dev = dev;
po->pppoe_ifindex = dev->ifindex;
- if (!(dev->flags & IFF_UP))
+ write_lock_bh(&pppoe_hash_lock);
+ if (!(dev->flags & IFF_UP)){
+ write_unlock_bh(&pppoe_hash_lock);
goto err_put;
+ }
memcpy(&po->pppoe_pa,
&sp->sa_addr.pppoe,
sizeof(struct pppoe_addr));
- error = set_item(po);
+ error = __set_item(po);
+ write_unlock_bh(&pppoe_hash_lock);
if (error < 0)
goto err_put;
static int pppoe_sendmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *m, size_t total_len)
{
- struct sk_buff *skb = NULL;
+ struct sk_buff *skb;
struct sock *sk = sock->sk;
struct pppox_sock *po = pppox_sk(sk);
- int error = 0;
+ int error;
struct pppoe_hdr hdr;
struct pppoe_hdr *ph;
struct net_device *dev;
/* Reserve space for headers. */
skb_reserve(skb, dev->hard_header_len);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
skb->dev = dev;
goto abort;
skb_reserve(skb2, dev->hard_header_len + sizeof(struct pppoe_hdr));
- memcpy(skb_put(skb2, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(skb2, skb->len),
+ skb->len);
} else {
/* Make a clone so as to not disturb the original skb,
* give dev_queue_xmit something it can free.
memcpy(ph, &hdr, sizeof(struct pppoe_hdr));
skb2->protocol = __constant_htons(ETH_P_PPP_SES);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
skb2->dev = dev;
struct msghdr *m, size_t total_len, int flags)
{
struct sock *sk = sock->sk;
- struct sk_buff *skb = NULL;
+ struct sk_buff *skb;
int error = 0;
- int len;
- struct pppoe_hdr *ph = NULL;
if (sk->sk_state & PPPOX_BOUND) {
error = -EIO;
skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
flags & MSG_DONTWAIT, &error);
- if (error < 0) {
+ if (error < 0)
goto end;
- }
m->msg_namelen = 0;
if (skb) {
- error = 0;
- ph = (struct pppoe_hdr *) skb->nh.raw;
- len = ntohs(ph->length);
+ struct pppoe_hdr *ph = pppoe_hdr(skb);
+ const int len = ntohs(ph->length);
error = memcpy_toiovec(m->msg_iov, (unsigned char *) &ph->tag[0], len);
- if (error < 0)
- goto do_skb_free;
- error = len;
+ if (error == 0)
+ error = len;
}
-do_skb_free:
- if (skb)
- kfree_skb(skb);
+ kfree_skb(skb);
end:
return error;
}
static __inline__ struct pppox_sock *pppoe_get_idx(loff_t pos)
{
- struct pppox_sock *po = NULL;
+ struct pppox_sock *po;
int i = 0;
for (; i < PPPOE_HASH_SIZE; i++) {
{
/* Clear connection to ppp device, if attached. */
- if (sk->sk_state & (PPPOX_BOUND | PPPOX_ZOMBIE)) {
+ if (sk->sk_state & (PPPOX_BOUND | PPPOX_CONNECTED | PPPOX_ZOMBIE)) {
ppp_unregister_channel(&pppox_sk(sk)->chan);
sk->sk_state = PPPOX_DEAD;
}
pci_unmap_len(lrg_buf_cb2, maplen),
PCI_DMA_FROMDEVICE);
prefetch(skb->data);
- skb->dev = qdev->ndev;
skb->ip_summed = CHECKSUM_NONE;
skb->protocol = eth_type_trans(skb, qdev->ndev);
* Copy the ethhdr from first buffer to second. This
* is necessary for 3022 IP completions.
*/
- memcpy(skb_push(skb2, size), skb1->data + VLAN_ID_LEN, size);
+ skb_copy_from_linear_data_offset(skb1, VLAN_ID_LEN,
+ skb_push(skb2, size), size);
} else {
u16 checksum = le16_to_cpu(ib_ip_rsp_ptr->checksum);
if (checksum &
skb2->ip_summed = CHECKSUM_UNNECESSARY;
}
}
- skb2->dev = qdev->ndev;
skb2->protocol = eth_type_trans(skb2, qdev->ndev);
netif_receive_skb(skb2);
return LargeSend | ((mss & MSSMask) << MSSShift);
}
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- const struct iphdr *ip = skb->nh.iph;
+ const struct iphdr *ip = ip_hdr(skb);
if (ip->protocol == IPPROTO_TCP)
return IPCS | TCPCS;
pci_action(tp->pci_dev, le64_to_cpu(desc->addr),
tp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- skb->dev = dev;
skb_put(skb, pkt_size);
skb->protocol = eth_type_trans(skb, dev);
rnet->rx_skb[i]->data = data;
skb_put(rnet->rx_skb[i], RIO_MAX_MSG_SIZE);
- rnet->rx_skb[i]->dev = ndev;
rnet->rx_skb[i]->protocol =
eth_type_trans(rnet->rx_skb[i], ndev);
error = netif_rx(rnet->rx_skb[i]);
goto defer;
}
}
- skb->dev = dev;
skb->protocol = hippi_type_trans(skb, dev);
netif_rx(skb); /* send it up */
}
skb_reserve(new_skb, 8);
skb_put(new_skb, len);
- memcpy(new_skb->data, skb->data, len);
+ skb_copy_from_linear_data(skb, new_skb->data, len);
dev_kfree_skb(skb);
skb = new_skb;
}
frag_list->next = NULL;
tmp = (void *)ALIGN((long)frag_list->data, ALIGN_SIZE + 1);
frag_list->data = tmp;
- frag_list->tail = tmp;
+ skb_reset_tail_pointer(frag_list);
/* Buffer-2 receives L4 data payload */
((struct RxD3*)rxdp)->Buffer2_ptr = pci_map_single(nic->pdev,
tmp += ALIGN_SIZE;
tmp &= ~ALIGN_SIZE;
skb->data = (void *) (unsigned long)tmp;
- skb->tail = (void *) (unsigned long)tmp;
+ skb_reset_tail_pointer(skb);
if (!(((struct RxD3*)rxdp)->Buffer0_ptr))
((struct RxD3*)rxdp)->Buffer0_ptr =
} else {
lp->stats.rx_bytes += len;
lp->stats.rx_packets++;
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align */
skb_put(skb, len); /* make room */
eth_copy_and_sum(skb,
goto dropped_frame;
}
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = (unsigned short) buffer[NewDatagramHeaderSkip + 16];
insw(ioaddr, skb_put(skb, NewDatagramDataSize),
NewDatagramDataSize / 2);
}
sbdma_align_skb(sb_new, SMP_CACHE_BYTES, ETHER_ALIGN);
-
- /* mark skbuff owned by our device */
- sb_new->dev = d->sbdma_eth->sbm_dev;
}
else {
sb_new = sb;
memcpy(skb_put(skb, pkt_size), rx_ring + rx_ring_offset, pkt_size);
}
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
dev->last_rx = jiffies;
netif_rx(skb);
lp->stats.rx_dropped++;
break;
}
- skb->dev = dev;
skb_reserve(skb, 2); /* align data on 16 byte */
buf = skb_put(skb,pkt_len);
skb = dev_alloc_skb(len + 2);
if (skb) {
- skb->dev = dev;
skb_reserve(skb, 2);
skb_put(skb, len);
* entry and the HPC got to the end of the chain before we
* added this new entry and restarted it.
*/
- memcpy((char *)(long)td->buf_vaddr, skb->data, skblen);
+ skb_copy_from_linear_data(skb, (char *)(long)td->buf_vaddr, skblen);
if (len != skblen)
memset((char *)(long)td->buf_vaddr + skb->len, 0, len-skblen);
td->tdma.cntinfo = (len & HPCDMA_BCNT) |
pci_action(tp->pci_dev, le32_to_cpu(desc->addr),
tp->rx_buf_sz, PCI_DMA_FROMDEVICE);
- skb->dev = dev;
skb_put(skb, pkt_size);
skb->protocol = eth_type_trans(skb, dev);
buffer */
break;
}
- skb->dev = net_dev;
sis_priv->rx_skbuff[i] = skb;
sis_priv->rx_ring[i].cmdsts = RX_BUF_SIZE;
sis_priv->rx_ring[i].bufptr = pci_map_single(sis_priv->pci_dev,
} else {
struct sk_buff * skb;
+ pci_unmap_single(sis_priv->pci_dev,
+ sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ /* refill the Rx buffer, what if there is not enought
+ * memory for new socket buffer ?? */
+ if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) {
+ /*
+ * Not enough memory to refill the buffer
+ * so we need to recycle the old one so
+ * as to avoid creating a memory hole
+ * in the rx ring
+ */
+ skb = sis_priv->rx_skbuff[entry];
+ sis_priv->stats.rx_dropped++;
+ goto refill_rx_ring;
+ }
+
/* This situation should never happen, but due to
some unknow bugs, it is possible that
we are working on NULL sk_buff :-( */
break;
}
- pci_unmap_single(sis_priv->pci_dev,
- sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
/* give the socket buffer to upper layers */
skb = sis_priv->rx_skbuff[entry];
skb_put(skb, rx_size);
net_dev->last_rx = jiffies;
sis_priv->stats.rx_bytes += rx_size;
sis_priv->stats.rx_packets++;
-
- /* refill the Rx buffer, what if there is not enought
- * memory for new socket buffer ?? */
- if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) {
- /* not enough memory for skbuff, this makes a
- * "hole" on the buffer ring, it is not clear
- * how the hardware will react to this kind
- * of degenerated buffer */
- if (netif_msg_rx_status(sis_priv))
- printk(KERN_INFO "%s: Memory squeeze,"
- "deferring packet.\n",
- net_dev->name);
- sis_priv->rx_skbuff[entry] = NULL;
- /* reset buffer descriptor state */
- sis_priv->rx_ring[entry].cmdsts = 0;
- sis_priv->rx_ring[entry].bufptr = 0;
- sis_priv->stats.rx_dropped++;
- sis_priv->cur_rx++;
- break;
- }
- skb->dev = net_dev;
+ sis_priv->dirty_rx++;
+refill_rx_ring:
sis_priv->rx_skbuff[entry] = skb;
sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE;
sis_priv->rx_ring[entry].bufptr =
pci_map_single(sis_priv->pci_dev, skb->data,
RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- sis_priv->dirty_rx++;
}
sis_priv->cur_rx++;
entry = sis_priv->cur_rx % NUM_RX_DESC;
sis_priv->stats.rx_dropped++;
break;
}
- skb->dev = net_dev;
sis_priv->rx_skbuff[entry] = skb;
sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE;
sis_priv->rx_ring[entry].bufptr =
pTxd->pMBuf = pMessage;
if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
- u16 hdrlen = pMessage->h.raw - pMessage->data;
+ u16 hdrlen = skb_transport_offset(pMessage);
u16 offset = hdrlen + pMessage->csum_offset;
- if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
+ if ((ipip_hdr(pMessage)->protocol == IPPROTO_UDP) &&
(pAC->GIni.GIChipRev == 0) &&
(pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
pTxd->TBControl = BMU_TCP_CHECK;
** Does the HW need to evaluate checksum for TCP or UDP packets?
*/
if (pMessage->ip_summed == CHECKSUM_PARTIAL) {
- u16 hdrlen = pMessage->h.raw - pMessage->data;
+ u16 hdrlen = skb_transport_offset(pMessage);
u16 offset = hdrlen + pMessage->csum_offset;
Control = BMU_STFWD;
** opcode for udp is not working in the hardware yet
** (Revision 2.0)
*/
- if ((pMessage->h.ipiph->protocol == IPPROTO_UDP ) &&
+ if ((ipip_hdr(pMessage)->protocol == IPPROTO_UDP) &&
(pAC->GIni.GIChipRev == 0) &&
(pAC->GIni.GIChipId == CHIP_ID_YUKON)) {
Control |= BMU_TCP_CHECK;
(dma_addr_t) PhysAddr,
FrameLength,
PCI_DMA_FROMDEVICE);
- memcpy(pNewMsg->data, pMsg, FrameLength);
+ skb_copy_to_linear_data(pNewMsg, pMsg, FrameLength);
pci_dma_sync_single_for_device(pAC->PciDev,
(dma_addr_t) PhysAddr,
SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
FrameLength, pRxPort->PortIndex);
- pMsg->dev = pAC->dev[pRxPort->PortIndex];
pMsg->protocol = eth_type_trans(pMsg,
pAC->dev[pRxPort->PortIndex]);
netif_rx(pMsg);
(IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
(ForRlmt & SK_RLMT_RX_PROTOCOL) ==
SK_RLMT_RX_PROTOCOL) {
- pMsg->dev = pAC->dev[pRxPort->PortIndex];
pMsg->protocol = eth_type_trans(pMsg,
pAC->dev[pRxPort->PortIndex]);
netif_rx(pMsg);
rxd->rxd_os.skb = NULL;
skb_trim(skb, len);
skb->protocol = fddi_type_trans(skb, bp->dev);
- skb->dev = bp->dev; /* pass up device pointer */
netif_rx(skb);
bp->dev->last_rx = jiffies;
}
skb_reserve(skb, 3);
skb_put(skb, len);
- memcpy(skb->data, look_ahead, len);
+ skb_copy_to_linear_data(skb, look_ahead, len);
// deliver frame to system
skb->protocol = fddi_type_trans(skb, smc->os.dev);
td->dma_hi = map >> 32;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- int offset = skb->h.raw - skb->data;
+ const int offset = skb_transport_offset(skb);
/* This seems backwards, but it is what the sk98lin
* does. Looks like hardware is wrong?
*/
- if (skb->h.ipiph->protocol == IPPROTO_UDP
+ if (ipip_hdr(skb)->protocol == IPPROTO_UDP
&& hw->chip_rev == 0 && hw->chip_id == CHIP_ID_YUKON)
control = BMU_TCP_CHECK;
else
pci_dma_sync_single_for_cpu(skge->hw->pdev,
pci_unmap_addr(e, mapaddr),
len, PCI_DMA_FROMDEVICE);
- memcpy(skb->data, e->skb->data, len);
+ skb_copy_from_linear_data(e->skb, skb->data, len);
pci_dma_sync_single_for_device(skge->hw->pdev,
pci_unmap_addr(e, mapaddr),
len, PCI_DMA_FROMDEVICE);
#include <linux/ethtool.h>
#include <linux/pci.h>
#include <linux/ip.h>
+#include <net/ip.h>
#include <linux/tcp.h>
#include <linux/in.h>
#include <linux/delay.h>
#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "1.13"
+#define DRV_VERSION "1.14"
#define PFX DRV_NAME " "
/*
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
+#ifdef broken
+ /* This device causes data corruption problems that are not resolved */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
- if (hw->dev[port]->mtu > ETH_DATA_LEN) {
- /* set Tx GMAC FIFO Almost Empty Threshold */
- sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), 0x180);
- /* Disable Store & Forward mode for TX */
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
- }
+
+ /* set Tx GMAC FIFO Almost Empty Threshold */
+ sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
+ (ECU_JUMBO_WM << 16) | ECU_AE_THR);
+
+ if (hw->dev[port]->mtu > ETH_DATA_LEN)
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_ENA | TX_STFW_DIS);
+ else
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_DIS | TX_STFW_ENA);
}
}
/* Set almost empty threshold */
if (hw->chip_id == CHIP_ID_YUKON_EC_U
&& hw->chip_rev == CHIP_REV_YU_EC_U_A0)
- sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), 0x1a0);
+ sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), ECU_TXFF_LEV);
sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
TX_RING_SIZE - 1);
/* Check for TCP Segmentation Offload */
mss = skb_shinfo(skb)->gso_size;
if (mss != 0) {
- mss += ((skb->h.th->doff - 5) * 4); /* TCP options */
- mss += (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
+ mss += tcp_optlen(skb); /* TCP options */
+ mss += ip_hdrlen(skb) + sizeof(struct tcphdr);
mss += ETH_HLEN;
if (mss != sky2->tx_last_mss) {
/* Handle TCP checksum offload */
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- unsigned offset = skb->h.raw - skb->data;
+ const unsigned offset = skb_transport_offset(skb);
u32 tcpsum;
tcpsum = offset << 16; /* sum start */
tcpsum |= offset + skb->csum_offset; /* sum write */
ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
- if (skb->nh.iph->protocol == IPPROTO_UDP)
+ if (ip_hdr(skb)->protocol == IPPROTO_UDP)
ctrl |= UDPTCP;
if (tcpsum != sky2->tx_tcpsum) {
sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
RB_RST_SET | RB_DIS_OP_MD);
- /* WA for dev. #4.209 */
- if (hw->chip_id == CHIP_ID_YUKON_EC_U
- && (hw->chip_rev == CHIP_REV_YU_EC_U_A1 || hw->chip_rev == CHIP_REV_YU_EC_U_B0))
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- sky2->speed != SPEED_1000 ?
- TX_STFW_ENA : TX_STFW_DIS);
-
ctrl = gma_read16(hw, port, GM_GP_CTRL);
ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
gma_write16(hw, port, GM_GP_CTRL, ctrl);
{
struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
int err;
u16 ctl, mode;
u32 imask;
if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
return -EINVAL;
- /* TSO on Yukon Ultra and MTU > 1500 not supported */
- if (hw->chip_id == CHIP_ID_YUKON_EC_U && new_mtu > ETH_DATA_LEN)
- dev->features &= ~NETIF_F_TSO;
+ if (new_mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_FE)
+ return -EINVAL;
if (!netif_running(dev)) {
dev->mtu = new_mtu;
synchronize_irq(hw->pdev->irq);
- ctl = gma_read16(hw, sky2->port, GM_GP_CTRL);
- gma_write16(hw, sky2->port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (new_mtu > ETH_DATA_LEN) {
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_ENA | TX_STFW_DIS);
+ dev->features &= NETIF_F_TSO | NETIF_F_SG | NETIF_F_IP_CSUM;
+ } else
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_DIS | TX_STFW_ENA);
+ }
+
+ ctl = gma_read16(hw, port, GM_GP_CTRL);
+ gma_write16(hw, port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
sky2_rx_stop(sky2);
sky2_rx_clean(sky2);
if (dev->mtu > ETH_DATA_LEN)
mode |= GM_SMOD_JUMBO_ENA;
- gma_write16(hw, sky2->port, GM_SERIAL_MODE, mode);
+ gma_write16(hw, port, GM_SERIAL_MODE, mode);
- sky2_write8(hw, RB_ADDR(rxqaddr[sky2->port], RB_CTRL), RB_ENA_OP_MD);
+ sky2_write8(hw, RB_ADDR(rxqaddr[port], RB_CTRL), RB_ENA_OP_MD);
err = sky2_rx_start(sky2);
sky2_write32(hw, B0_IMSK, imask);
if (err)
dev_close(dev);
else {
- gma_write16(hw, sky2->port, GM_GP_CTRL, ctl);
+ gma_write16(hw, port, GM_GP_CTRL, ctl);
netif_poll_enable(hw->dev[0]);
netif_wake_queue(dev);
skb_reserve(skb, 2);
pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->data_addr,
length, PCI_DMA_FROMDEVICE);
- memcpy(skb->data, re->skb->data, length);
+ skb_copy_from_linear_data(re->skb, skb->data, length);
skb->ip_summed = re->skb->ip_summed;
skb->csum = re->skb->csum;
pci_dma_sync_single_for_device(sky2->hw->pdev, re->data_addr,
}
}
-/* This should never happen it is a fatal situation */
-static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port,
- const char *rxtx, u32 mask)
+/* This should never happen it is a bug. */
+static void sky2_le_error(struct sky2_hw *hw, unsigned port,
+ u16 q, unsigned ring_size)
{
struct net_device *dev = hw->dev[port];
struct sky2_port *sky2 = netdev_priv(dev);
- u32 imask;
-
- printk(KERN_ERR PFX "%s: %s descriptor error (hardware problem)\n",
- dev ? dev->name : "<not registered>", rxtx);
+ unsigned idx;
+ const u64 *le = (q == Q_R1 || q == Q_R2)
+ ? (u64 *) sky2->rx_le : (u64 *) sky2->tx_le;
- imask = sky2_read32(hw, B0_IMSK);
- imask &= ~mask;
- sky2_write32(hw, B0_IMSK, imask);
+ idx = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));
+ printk(KERN_ERR PFX "%s: descriptor error q=%#x get=%u [%llx] put=%u\n",
+ dev->name, (unsigned) q, idx, (unsigned long long) le[idx],
+ (unsigned) sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX)));
- if (dev) {
- spin_lock(&sky2->phy_lock);
- sky2_link_down(sky2);
- spin_unlock(&sky2->phy_lock);
- }
+ sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
}
/* If idle then force a fake soft NAPI poll once a second
mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout));
}
-
-static int sky2_poll(struct net_device *dev0, int *budget)
+/* Hardware/software error handling */
+static void sky2_err_intr(struct sky2_hw *hw, u32 status)
{
- struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
- int work_limit = min(dev0->quota, *budget);
- int work_done = 0;
- u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
+ if (net_ratelimit())
+ dev_warn(&hw->pdev->dev, "error interrupt status=%#x\n", status);
if (status & Y2_IS_HW_ERR)
sky2_hw_intr(hw);
- if (status & Y2_IS_IRQ_PHY1)
- sky2_phy_intr(hw, 0);
-
- if (status & Y2_IS_IRQ_PHY2)
- sky2_phy_intr(hw, 1);
-
if (status & Y2_IS_IRQ_MAC1)
sky2_mac_intr(hw, 0);
sky2_mac_intr(hw, 1);
if (status & Y2_IS_CHK_RX1)
- sky2_descriptor_error(hw, 0, "receive", Y2_IS_CHK_RX1);
+ sky2_le_error(hw, 0, Q_R1, RX_LE_SIZE);
if (status & Y2_IS_CHK_RX2)
- sky2_descriptor_error(hw, 1, "receive", Y2_IS_CHK_RX2);
+ sky2_le_error(hw, 1, Q_R2, RX_LE_SIZE);
if (status & Y2_IS_CHK_TXA1)
- sky2_descriptor_error(hw, 0, "transmit", Y2_IS_CHK_TXA1);
+ sky2_le_error(hw, 0, Q_XA1, TX_RING_SIZE);
if (status & Y2_IS_CHK_TXA2)
- sky2_descriptor_error(hw, 1, "transmit", Y2_IS_CHK_TXA2);
+ sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE);
+}
+
+static int sky2_poll(struct net_device *dev0, int *budget)
+{
+ struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
+ int work_limit = min(dev0->quota, *budget);
+ int work_done = 0;
+ u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
+
+ if (unlikely(status & Y2_IS_ERROR))
+ sky2_err_intr(hw, status);
+
+ if (status & Y2_IS_IRQ_PHY1)
+ sky2_phy_intr(hw, 0);
+
+ if (status & Y2_IS_IRQ_PHY2)
+ sky2_phy_intr(hw, 1);
work_done = sky2_status_intr(hw, work_limit);
if (work_done < work_limit) {
int i;
/* disable ASF */
- if (hw->chip_id <= CHIP_ID_YUKON_EC) {
- if (hw->chip_id == CHIP_ID_YUKON_EX) {
- status = sky2_read16(hw, HCU_CCSR);
- status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
- HCU_CCSR_UC_STATE_MSK);
- sky2_write16(hw, HCU_CCSR, status);
- } else
- sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
- sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
- }
+ if (hw->chip_id == CHIP_ID_YUKON_EX) {
+ status = sky2_read16(hw, HCU_CCSR);
+ status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE |
+ HCU_CCSR_UC_STATE_MSK);
+ sky2_write16(hw, HCU_CCSR, status);
+ } else
+ sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
+ sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
/* do a SW reset */
sky2_write8(hw, B0_CTST, CS_RST_SET);
regs->len - B3_RI_WTO_R1);
}
+/* In order to do Jumbo packets on these chips, need to turn off the
+ * transmit store/forward. Therefore checksum offload won't work.
+ */
+static int no_tx_offload(struct net_device *dev)
+{
+ const struct sky2_port *sky2 = netdev_priv(dev);
+ const struct sky2_hw *hw = sky2->hw;
+
+ return dev->mtu > ETH_DATA_LEN &&
+ (hw->chip_id == CHIP_ID_YUKON_EX
+ || hw->chip_id == CHIP_ID_YUKON_EC_U);
+}
+
+static int sky2_set_tx_csum(struct net_device *dev, u32 data)
+{
+ if (data && no_tx_offload(dev))
+ return -EINVAL;
+
+ return ethtool_op_set_tx_csum(dev, data);
+}
+
+
+static int sky2_set_tso(struct net_device *dev, u32 data)
+{
+ if (data && no_tx_offload(dev))
+ return -EINVAL;
+
+ return ethtool_op_set_tso(dev, data);
+}
+
static const struct ethtool_ops sky2_ethtool_ops = {
.get_settings = sky2_get_settings,
.set_settings = sky2_set_settings,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = ethtool_op_set_tx_csum,
+ .set_tx_csum = sky2_set_tx_csum,
.get_tso = ethtool_op_get_tso,
- .set_tso = ethtool_op_set_tso,
+ .set_tso = sky2_set_tso,
.get_rx_csum = sky2_get_rx_csum,
.set_rx_csum = sky2_set_rx_csum,
.get_strings = sky2_get_strings,
| Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1,
Y2_IS_PORT_2 = Y2_IS_IRQ_PHY2 | Y2_IS_IRQ_MAC2
| Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2,
+ Y2_IS_ERROR = Y2_IS_HW_ERR |
+ Y2_IS_IRQ_MAC1 | Y2_IS_CHK_TXA1 | Y2_IS_CHK_RX1 |
+ Y2_IS_IRQ_MAC2 | Y2_IS_CHK_TXA2 | Y2_IS_CHK_RX2,
};
/* B2_IRQM_HWE_MSK 32 bit IRQ Moderation HW Error Mask */
TX_GMF_RP = 0x0d70,/* 32 bit Tx GMAC FIFO Read Pointer */
TX_GMF_RSTP = 0x0d74,/* 32 bit Tx GMAC FIFO Restart Pointer */
TX_GMF_RLEV = 0x0d78,/* 32 bit Tx GMAC FIFO Read Level */
+
+ /* Threshold values for Yukon-EC Ultra and Extreme */
+ ECU_AE_THR = 0x0070, /* Almost Empty Threshold */
+ ECU_TXFF_LEV = 0x01a0, /* Tx BMU FIFO Level */
+ ECU_JUMBO_WM = 0x0080, /* Jumbo Mode Watermark */
};
/* Descriptor Poll Timer Registers */
TX_VLAN_TAG_ON = 1<<25,/* enable VLAN tagging */
TX_VLAN_TAG_OFF = 1<<24,/* disable VLAN tagging */
+ TX_JUMBO_ENA = 1<<23,/* PCI Jumbo Mode enable (Yukon-EC Ultra) */
+ TX_JUMBO_DIS = 1<<22,/* PCI Jumbo Mode enable (Yukon-EC Ultra) */
+
GMF_WSP_TST_ON = 1<<18,/* Write Shadow Pointer Test On */
GMF_WSP_TST_OFF = 1<<17,/* Write Shadow Pointer Test Off */
GMF_WSP_STEP = 1<<16,/* Write Shadow Pointer Step/Increment */
}
skb->dev = sl->dev;
memcpy(skb_put(skb,count), sl->rbuff, count);
- skb->mac.raw=skb->data;
+ skb_reset_mac_header(skb);
skb->protocol=htons(ETH_P_IP);
netif_rx(skb);
sl->dev->last_rx = jiffies;
DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name,);
PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
dev->last_rx = jiffies;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
lp->stats.rx_packets++;
lp->current_rx_skb = NULL;
PRINT_PKT(skb->data, skb->len);
dev->last_rx = jiffies;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
lp->stats.rx_packets++;
skb_reserve( skb, 2 ); /* 16 bit alignment */
- skb->dev = dev;
data = skb_put( skb, packet_length);
#ifdef USE_32_BIT
PRINT_PKT(data, packet_len - 4);
dev->last_rx = jiffies;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
lp->stats.rx_packets++;
dev->name);
return -ENOMEM;
}
- skb->dev = dev;
/* align IP header unless DMA requires otherwise */
if (SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
skb_reserve(skb, 2);
lp->stats.rx_dropped++;
break;
}
- new_skb->dev = dev;
/* provide 16 byte IP header alignment unless DMA requires otherwise */
if(SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
skb_reserve(new_skb, 2);
SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_NOCS;
spin_unlock_irqrestore(&chain->lock, flags);
- if (skb->protocol == htons(ETH_P_IP))
- switch (skb->nh.iph->protocol) {
+ if (skb->protocol == htons(ETH_P_IP) && skb->ip_summed == CHECKSUM_PARTIAL)
+ switch (ip_hdr(skb)->protocol) {
case IPPROTO_TCP:
hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_TCP;
break;
netdev = card->netdev;
skb = descr->skb;
- skb->dev = netdev;
skb_put(skb, hwdescr->valid_size);
/* the card seems to add 2 bytes of junk in front
to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(np->pci_dev,
np->rx_info[entry].mapping,
skb = (struct sk_buff *) dev_alloc_skb(totlen+2);
if(skb != NULL)
{
- skb->dev = dev;
skb_reserve(skb,2);
skb_put(skb,totlen);
eth_copy_and_sum(skb,(char *) p->base+swab32((unsigned long) rbd->buffer),totlen,0);
memset((char *)p->xmit_cbuffs[p->xmit_count], 0, ETH_ZLEN);
len = ETH_ZLEN;
}
- memcpy((char *)p->xmit_cbuffs[p->xmit_count],(char *)(skb->data),skb->len);
+ skb_copy_from_linear_data(skb, p->xmit_cbuffs[p->xmit_count], skb->len);
#if (NUM_XMIT_BUFFS == 1)
# ifdef NO_NOPCOMMANDS
head->length = (-len) | 0xf000;
head->misc = 0;
- memcpy( PKTBUF_ADDR(head), (void *)skb->data, skb->len );
+ skb_copy_from_linear_data(skb, PKTBUF_ADDR(head), skb->len);
if (len != skb->len)
memset(PKTBUF_ADDR(head) + skb->len, 0, len-skb->len);
}
- skb->dev = dev;
skb_reserve( skb, 2 ); /* 16 byte align */
skb_put( skb, pkt_len ); /* Make room */
-// memcpy( skb->data, PKTBUF_ADDR(head), pkt_len );
+// skb_copy_to_linear_data(skb, PKTBUF_ADDR(head), pkt_len);
eth_copy_and_sum(skb,
PKTBUF_ADDR(head),
pkt_len, 0);
drops++;
goto drop_it;
}
- copy_skb->dev = bp->dev;
skb_reserve(copy_skb, 2);
skb_put(copy_skb, len);
sbus_dma_sync_single_for_cpu(bp->bigmac_sdev,
to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(np->pci_dev,
desc->frag[0].addr,
#include <asm/uaccess.h>
#include <asm/irq.h>
-#ifdef __sparc__
+#ifdef CONFIG_SPARC
#include <asm/idprom.h>
-#include <asm/openprom.h>
-#include <asm/oplib.h>
-#include <asm/pbm.h>
+#include <asm/prom.h>
#endif
#ifdef CONFIG_PPC_PMAC
goto drop_it;
}
- copy_skb->dev = gp->dev;
skb_reserve(copy_skb, 2);
skb_put(copy_skb, len);
pci_dma_sync_single_for_cpu(gp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
- memcpy(copy_skb->data, skb->data, len);
+ skb_copy_from_linear_data(skb, copy_skb->data, len);
pci_dma_sync_single_for_device(gp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
/* We'll reuse the original ring buffer. */
ctrl = 0;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- u64 csum_start_off, csum_stuff_off;
-
- csum_start_off = (u64) (skb->h.raw - skb->data);
- csum_stuff_off = csum_start_off + skb->csum_offset;
+ const u64 csum_start_off = skb_transport_offset(skb);
+ const u64 csum_stuff_off = csum_start_off + skb->csum_offset;
ctrl = (TXDCTRL_CENAB |
(csum_start_off << 15) |
return rc;
}
-#if (!defined(__sparc__) && !defined(CONFIG_PPC_PMAC))
+#if (!defined(CONFIG_SPARC) && !defined(CONFIG_PPC_PMAC))
/* Fetch MAC address from vital product data of PCI ROM. */
static int find_eth_addr_in_vpd(void __iomem *rom_base, int len, unsigned char *dev_addr)
{
static int __devinit gem_get_device_address(struct gem *gp)
{
-#if defined(__sparc__) || defined(CONFIG_PPC_PMAC)
+#if defined(CONFIG_SPARC) || defined(CONFIG_PPC_PMAC)
struct net_device *dev = gp->dev;
-#endif
-
-#if defined(__sparc__)
- struct pci_dev *pdev = gp->pdev;
- struct pcidev_cookie *pcp = pdev->sysdata;
- int use_idprom = 1;
-
- if (pcp != NULL) {
- unsigned char *addr;
- int len;
-
- addr = of_get_property(pcp->prom_node, "local-mac-address",
- &len);
- if (addr && len == 6) {
- use_idprom = 0;
- memcpy(dev->dev_addr, addr, 6);
- }
- }
- if (use_idprom)
- memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
-#elif defined(CONFIG_PPC_PMAC)
const unsigned char *addr;
addr = get_property(gp->of_node, "local-mac-address", NULL);
if (addr == NULL) {
+#ifdef CONFIG_SPARC
+ addr = idprom->id_ethaddr;
+#else
printk("\n");
printk(KERN_ERR "%s: can't get mac-address\n", dev->name);
return -1;
+#endif
}
memcpy(dev->dev_addr, addr, 6);
#else
/* On Apple, we want a reference to the Open Firmware device-tree
* node. We use it for clock control.
*/
-#ifdef CONFIG_PPC_PMAC
+#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_SPARC)
gp->of_node = pci_device_to_OF_node(pdev);
#endif
struct pci_dev *pdev;
struct net_device *dev;
-#ifdef CONFIG_PPC_PMAC
+#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_SPARC)
struct device_node *of_node;
#endif
};
#ifdef CONFIG_PCI
#include <linux/pci.h>
-#ifdef CONFIG_SPARC
-#include <asm/pbm.h>
-#endif
#endif
#include "sunhme.h"
goto drop_it;
}
- copy_skb->dev = dev;
skb_reserve(copy_skb, 2);
skb_put(copy_skb, len);
hme_dma_sync_for_cpu(hp, dma_addr, len, DMA_FROMDEVICE);
- memcpy(copy_skb->data, skb->data, len);
+ skb_copy_from_linear_data(skb, copy_skb->data, len);
hme_dma_sync_for_device(hp, dma_addr, len, DMA_FROMDEVICE);
/* Reuse original ring buffer. */
tx_flags = TXFLAG_OWN;
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- u32 csum_start_off, csum_stuff_off;
-
- csum_start_off = (u32) (skb->h.raw - skb->data);
- csum_stuff_off = csum_start_off + skb->csum_offset;
+ const u32 csum_start_off = skb_transport_offset(skb);
+ const u32 csum_stuff_off = csum_start_off + skb->csum_offset;
tx_flags = (TXFLAG_OWN | TXFLAG_CSENABLE |
((csum_start_off << 14) & TXFLAG_CSBUFBEGIN) |
dev->dev_addr[i] = macaddr[i];
macaddr[5]++;
} else {
- unsigned char *addr;
+ const unsigned char *addr;
int len;
addr = of_get_property(dp, "local-mac-address", &len);
{
struct quattro *qp = NULL;
#ifdef CONFIG_SPARC
- struct pcidev_cookie *pcp;
+ struct device_node *dp;
#endif
struct happy_meal *hp;
struct net_device *dev;
/* Now make sure pci_dev cookie is there. */
#ifdef CONFIG_SPARC
- pcp = pdev->sysdata;
- if (pcp == NULL) {
- printk(KERN_ERR "happymeal(PCI): Some PCI device info missing\n");
- return -ENODEV;
- }
-
- strcpy(prom_name, pcp->prom_node->name);
+ dp = pci_device_to_OF_node(pdev);
+ strcpy(prom_name, dp->name);
#else
if (is_quattro_p(pdev))
strcpy(prom_name, "SUNW,qfe");
macaddr[5]++;
} else {
#ifdef CONFIG_SPARC
- unsigned char *addr;
+ const unsigned char *addr;
int len;
if (qfe_slot != -1 &&
- (addr = of_get_property(pcp->prom_node,
+ (addr = of_get_property(dp,
"local-mac-address", &len)) != NULL
&& len == 6) {
memcpy(dev->dev_addr, addr, 6);
hp->tcvregs = (hpreg_base + 0x7000UL);
#ifdef CONFIG_SPARC
- hp->hm_revision = of_getintprop_default(pcp->prom_node, "hm-rev", 0xff);
+ hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff);
if (hp->hm_revision == 0xff) {
unsigned char prev;
{
struct sbus_dev *sdev = to_sbus_device(&dev->dev);
struct device_node *dp = dev->node;
- char *model = of_get_property(dp, "model", NULL);
+ const char *model = of_get_property(dp, "model", NULL);
int is_qfe = (match->data != NULL);
if (!is_qfe && model && !strcmp(model, "SUNW,sbus-qfe"))
struct happy_meal *hp = dev_get_drvdata(&dev->dev);
struct net_device *net_dev = hp->dev;
- unregister_netdevice(net_dev);
+ unregister_netdev(net_dev);
/* XXX qfe parent interrupt... */
lp->stats.rx_bytes += len;
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align */
skb_put(skb, len); /* make room */
eth_copy_and_sum(skb,
lp->stats.rx_bytes += len;
- skb->dev = dev;
skb_reserve (skb, 2); /* 16 byte align */
skb_put(skb, len); /* make room */
lance_piocopy_to_skb(skb, &(ib->rx_buf[entry][0]), len);
struct lance_init_block *ib = lp->init_block_mem;
ib->btx_ring [entry].length = (-len) | 0xf000;
ib->btx_ring [entry].misc = 0;
- memcpy((char *)&ib->tx_buf [entry][0], skb->data, skblen);
+ skb_copy_from_linear_data(skb, &ib->tx_buf [entry][0], skblen);
if (len != skblen)
memset((char *) &ib->tx_buf [entry][skblen], 0, len - skblen);
ib->btx_ring [entry].tmd1_bits = (LE_T1_POK | LE_T1_OWN);
struct lance_private *lp = dev_get_drvdata(&sun4_sdev.ofdev.dev);
struct net_device *net_dev = lp->dev;
- unregister_netdevice(net_dev);
+ unregister_netdev(net_dev);
lance_free_hwresources(lp);
struct lance_private *lp = dev_get_drvdata(&dev->dev);
struct net_device *net_dev = lp->dev;
- unregister_netdevice(net_dev);
+ unregister_netdev(net_dev);
lance_free_hwresources(lp);
drops++;
qep->net_stats.rx_dropped++;
} else {
- skb->dev = qep->dev;
skb_reserve(skb, 2);
skb_put(skb, len);
eth_copy_and_sum(skb, (unsigned char *) this_qbuf,
/* Avoid a race... */
qep->qe_block->qe_txd[entry].tx_flags = TXD_UPDATE;
- memcpy(txbuf, skb->data, len);
+ skb_copy_from_linear_data(skb, txbuf, len);
qep->qe_block->qe_txd[entry].tx_addr = txbuf_dvma;
qep->qe_block->qe_txd[entry].tx_flags =
if (!dev)
return -ENOMEM;
+ memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
+
qe = netdev_priv(dev);
i = of_getintprop_default(sdev->ofdev.node, "channel#", -1);
struct sunqe *qp = dev_get_drvdata(&dev->dev);
struct net_device *net_dev = qp->dev;
- unregister_netdevice(net_dev);
+ unregister_netdev(net_dev);
sbus_iounmap(qp->qcregs, CREG_REG_SIZE);
sbus_iounmap(qp->mregs, MREGS_REG_SIZE);
break;
}
skb_reserve(skb, 2); /* 16 bit alignment */
- skb->dev = dev;
data = skb_put(skb, pkt_len);
#include <linux/dma-mapping.h>
#include <net/checksum.h>
+#include <net/ip.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/byteorder.h>
#include <asm/uaccess.h>
-#ifdef CONFIG_SPARC64
+#ifdef CONFIG_SPARC
#include <asm/idprom.h>
-#include <asm/oplib.h>
-#include <asm/pbm.h>
+#include <asm/prom.h>
#endif
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
skb_reserve(copy_skb, 2);
skb_put(copy_skb, len);
pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
- memcpy(copy_skb->data, skb->data, len);
+ skb_copy_from_linear_data(skb, copy_skb->data, len);
pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
/* We'll reuse the original ring buffer. */
if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
mss |= (skb_headlen(skb) - ETH_HLEN) << 9;
else {
- tcp_opt_len = ((skb->h.th->doff - 5) * 4);
- ip_tcp_len = (skb->nh.iph->ihl * 4) +
- sizeof(struct tcphdr);
+ struct iphdr *iph = ip_hdr(skb);
+
+ tcp_opt_len = tcp_optlen(skb);
+ ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
- skb->nh.iph->check = 0;
- skb->nh.iph->tot_len = htons(mss + ip_tcp_len +
- tcp_opt_len);
+ iph->check = 0;
+ iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
mss |= (ip_tcp_len + tcp_opt_len) << 9;
}
base_flags |= (TXD_FLAG_CPU_PRE_DMA |
TXD_FLAG_CPU_POST_DMA);
- skb->h.th->check = 0;
+ tcp_hdr(skb)->check = 0;
}
else if (skb->ip_summed == CHECKSUM_PARTIAL)
mss = 0;
if (skb->len > (tp->dev->mtu + ETH_HLEN) &&
(mss = skb_shinfo(skb)->gso_size) != 0) {
+ struct iphdr *iph;
int tcp_opt_len, ip_tcp_len, hdr_len;
if (skb_header_cloned(skb) &&
goto out_unlock;
}
- tcp_opt_len = ((skb->h.th->doff - 5) * 4);
- ip_tcp_len = (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
+ tcp_opt_len = tcp_optlen(skb);
+ ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
hdr_len = ip_tcp_len + tcp_opt_len;
if (unlikely((ETH_HLEN + hdr_len) > 80) &&
base_flags |= (TXD_FLAG_CPU_PRE_DMA |
TXD_FLAG_CPU_POST_DMA);
- skb->nh.iph->check = 0;
- skb->nh.iph->tot_len = htons(mss + hdr_len);
+ iph = ip_hdr(skb);
+ iph->check = 0;
+ iph->tot_len = htons(mss + hdr_len);
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
- skb->h.th->check = 0;
+ tcp_hdr(skb)->check = 0;
base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
- }
- else {
- skb->h.th->check =
- ~csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- 0, IPPROTO_TCP, 0);
- }
+ } else
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP,
+ 0);
if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)) {
- if (tcp_opt_len || skb->nh.iph->ihl > 5) {
+ if (tcp_opt_len || iph->ihl > 5) {
int tsflags;
- tsflags = ((skb->nh.iph->ihl - 5) +
- (tcp_opt_len >> 2));
+ tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
mss |= (tsflags << 11);
}
} else {
- if (tcp_opt_len || skb->nh.iph->ihl > 5) {
+ if (tcp_opt_len || iph->ihl > 5) {
int tsflags;
- tsflags = ((skb->nh.iph->ihl - 5) +
- (tcp_opt_len >> 2));
+ tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
base_flags |= tsflags << 12;
}
}
return err;
}
-#ifdef CONFIG_SPARC64
+#ifdef CONFIG_SPARC
static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
struct pci_dev *pdev = tp->pdev;
- struct pcidev_cookie *pcp = pdev->sysdata;
-
- if (pcp != NULL) {
- unsigned char *addr;
- int len;
-
- addr = of_get_property(pcp->prom_node, "local-mac-address",
- &len);
- if (addr && len == 6) {
- memcpy(dev->dev_addr, addr, 6);
- memcpy(dev->perm_addr, dev->dev_addr, 6);
- return 0;
- }
+ struct device_node *dp = pci_device_to_OF_node(pdev);
+ const unsigned char *addr;
+ int len;
+
+ addr = of_get_property(dp, "local-mac-address", &len);
+ if (addr && len == 6) {
+ memcpy(dev->dev_addr, addr, 6);
+ memcpy(dev->perm_addr, dev->dev_addr, 6);
+ return 0;
}
return -ENODEV;
}
u32 hi, lo, mac_offset;
int addr_ok = 0;
-#ifdef CONFIG_SPARC64
+#ifdef CONFIG_SPARC
if (!tg3_get_macaddr_sparc(tp))
return 0;
#endif
if ( bbuf ) {
tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE );
- memcpy( tail_buffer, skb->data, skb->len );
+ skb_copy_from_linear_data(skb, tail_buffer, skb->len);
} else {
tail_list->buffer[0].address = pci_map_single(priv->pciDev, skb->data, skb->len, PCI_DMA_TODEVICE);
TLan_StoreSKB(tail_list, skb);
printk(KERN_INFO "TLAN: Couldn't allocate memory for received data.\n");
else {
head_buffer = priv->rxBuffer + (priv->rxHead * TLAN_MAX_FRAME_SIZE);
- skb->dev = dev;
skb_reserve(skb, 2);
t = (void *) skb_put(skb, frameSize);
skb->protocol = eth_type_trans( skb, dev );
netif_rx( skb );
- new_skb->dev = dev;
skb_reserve( new_skb, 2 );
t = (void *) skb_put( new_skb, TLAN_MAX_FRAME_SIZE );
head_list->buffer[0].address = pci_map_single(priv->pciDev, new_skb->data, TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE);
return ;
}
- skb->dev = dev ;
-
while (xl_priv->rx_ring_tail != temp_ring_loc) {
copy_len = xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfraglen & 0x7FFF ;
frame_length -= copy_len ;
pci_dma_sync_single_for_cpu(xl_priv->pdev,xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfragaddr,xl_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
- memcpy(skb_put(skb,copy_len), xl_priv->rx_ring_skb[xl_priv->rx_ring_tail]->data, copy_len) ;
+ skb_copy_from_linear_data(xl_priv->rx_ring_skb[xl_priv->rx_ring_tail],
+ skb_put(skb, copy_len),
+ copy_len);
pci_dma_sync_single_for_device(xl_priv->pdev,xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfragaddr,xl_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
adv_rx_ring(dev) ;
}
/* Now we have found the last fragment */
pci_dma_sync_single_for_cpu(xl_priv->pdev,xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfragaddr,xl_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
- memcpy(skb_put(skb,copy_len), xl_priv->rx_ring_skb[xl_priv->rx_ring_tail]->data, frame_length) ;
+ skb_copy_from_linear_data(xl_priv->rx_ring_skb[xl_priv->rx_ring_tail],
+ skb_put(skb,copy_len), frame_length);
/* memcpy(skb_put(skb,frame_length), bus_to_virt(xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfragaddr), frame_length) ; */
pci_dma_sync_single_for_device(xl_priv->pdev,xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfragaddr,xl_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
adv_rx_ring(dev) ;
return ;
}
- skb->dev = dev ;
-
skb2 = xl_priv->rx_ring_skb[xl_priv->rx_ring_tail] ;
pci_unmap_single(xl_priv->pdev, xl_priv->xl_rx_ring[xl_priv->rx_ring_tail].upfragaddr, xl_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
skb_put(skb2, frame_length) ;
/*BMS again, if she comes in with few but leaves with many */
skb_reserve(skb, sizeof(struct trh_hdr) - lan_hdr_len);
skb_put(skb, length);
- skb->dev = dev;
data = skb->data;
rbuffer_len = ntohs(readw(rbuf + offsetof(struct rec_buf, buf_len)));
rbufdata = rbuf + offsetof(struct rec_buf, data);
printk(KERN_WARNING "%s: Not enough memory to copy packet to upper layers. \n", dev->name);
streamer_priv->streamer_stats.rx_dropped++;
} else { /* we allocated an skb OK */
- skb->dev = dev;
-
if (buffer_cnt == 1) {
/* release the DMA mapping */
pci_unmap_single(streamer_priv->pci_dev,
frame_data, buffer_len);
} while (next_ptr && (buff_off = next_ptr));
+ mac_frame->protocol = tr_type_trans(mac_frame, dev);
#if STREAMER_NETWORK_MONITOR
printk(KERN_WARNING "%s: Received MAC Frame, details: \n",
dev->name);
- mac_hdr = (struct trh_hdr *) mac_frame->data;
+ mac_hdr = tr_hdr(mac_frame);
printk(KERN_WARNING
"%s: MAC Frame Dest. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n",
dev->name, mac_hdr->daddr[0], mac_hdr->daddr[1],
mac_hdr->saddr[2], mac_hdr->saddr[3],
mac_hdr->saddr[4], mac_hdr->saddr[5]);
#endif
- mac_frame->dev = dev;
- mac_frame->protocol = tr_type_trans(mac_frame, dev);
netif_rx(mac_frame);
/* Now tell the card we have dealt with the received frame */
olympic_priv->rx_ring_last_received += i ;
olympic_priv->rx_ring_last_received &= (OLYMPIC_RX_RING_SIZE -1) ;
} else {
- skb->dev = dev ;
-
/* Optimise based upon number of buffers used.
If only one buffer is used we can simply swap the buffers around.
If more than one then we must use the new buffer and copy the information
pci_dma_sync_single_for_cpu(olympic_priv->pdev,
le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer),
olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
- memcpy(skb_put(skb,length-4),olympic_priv->rx_ring_skb[rx_ring_last_received]->data,length-4) ;
+ skb_copy_from_linear_data(olympic_priv->rx_ring_skb[rx_ring_last_received],
+ skb_put(skb,length - 4),
+ length - 4);
pci_dma_sync_single_for_device(olympic_priv->pdev,
le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer),
olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
rx_desc = &(olympic_priv->olympic_rx_ring[rx_ring_last_received]);
cpy_length = (i == 1 ? frag_len : le32_to_cpu(rx_desc->res_length));
- memcpy(skb_put(skb, cpy_length), olympic_priv->rx_ring_skb[rx_ring_last_received]->data, cpy_length) ;
+ skb_copy_from_linear_data(olympic_priv->rx_ring_skb[rx_ring_last_received],
+ skb_put(skb, cpy_length),
+ cpy_length);
pci_dma_sync_single_for_device(olympic_priv->pdev,
le32_to_cpu(olympic_priv->olympic_rx_ring[rx_ring_last_received].buffer),
olympic_priv->pkt_buf_sz,PCI_DMA_FROMDEVICE) ;
next_ptr=readw(buf_ptr+offsetof(struct mac_receive_buffer,next));
} while (next_ptr && (buf_ptr=olympic_priv->olympic_lap + ntohs(next_ptr)));
+ mac_frame->protocol = tr_type_trans(mac_frame, dev);
+
if (olympic_priv->olympic_network_monitor) {
struct trh_hdr *mac_hdr ;
printk(KERN_WARNING "%s: Received MAC Frame, details: \n",dev->name) ;
- mac_hdr = (struct trh_hdr *)mac_frame->data ;
+ mac_hdr = tr_hdr(mac_frame);
printk(KERN_WARNING "%s: MAC Frame Dest. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", dev->name , mac_hdr->daddr[0], mac_hdr->daddr[1], mac_hdr->daddr[2], mac_hdr->daddr[3], mac_hdr->daddr[4], mac_hdr->daddr[5]) ;
printk(KERN_WARNING "%s: MAC Frame Srce. Addr: %02x:%02x:%02x:%02x:%02x:%02x \n", dev->name , mac_hdr->saddr[0], mac_hdr->saddr[1], mac_hdr->saddr[2], mac_hdr->saddr[3], mac_hdr->saddr[4], mac_hdr->saddr[5]) ;
}
- mac_frame->dev = dev ;
- mac_frame->protocol = tr_type_trans(mac_frame,dev);
- netif_rx(mac_frame) ;
+ netif_rx(mac_frame);
dev->last_rx = jiffies;
drop_frame:
/* Slide data into a sleek skb. */
skb_put(skb, skb->len);
- memcpy(skb->data, rmf, skb->len);
+ skb_copy_to_linear_data(skb, rmf, skb->len);
/* Update Counters */
tp->MacStat.rx_packets++;
tp->MacStat.rx_bytes += skb->len;
/* Kick the packet on up. */
- skb->dev = dev;
skb->protocol = tr_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
if (skb) {
skb_put(skb, rx_size);
- memcpy(skb->data, pbuff, rx_size);
+ skb_copy_to_linear_data(skb, pbuff, rx_size);
/* Update Counters */
tp->MacStat.rx_packets++;
tp->MacStat.rx_bytes += skb->len;
/* Kick the packet on up. */
- skb->dev = dev;
skb->protocol = tr_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
dmabuf = 0;
i = tp->TplFree->TPLIndex;
buf = tp->LocalTxBuffers[i];
- memcpy(buf, skb->data, length);
+ skb_copy_from_linear_data(skb, buf, length);
newbuf = ((char *)buf - (char *)tp) + tp->dmabuffer;
}
else {
}
else
{
- skb->dev = dev;
skb_put(skb, tp->MaxPacketSize);
rpl->SkbStat = SKB_DATA_COPY;
ReceiveDataPtr = rpl->MData;
|| rpl->SkbStat == SKB_DMA_DIRECT))
{
if(rpl->SkbStat == SKB_DATA_COPY)
- memcpy(skb->data, ReceiveDataPtr, Length);
+ skb_copy_to_linear_data(skb, ReceiveDataPtr,
+ Length);
/* Deliver frame to system */
rpl->Skb = NULL;
printk(".\n");
}
- skb->dev = dev;
skb_put(skb, data->rxring[rx].len);
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) \
- || defined(__sparc__) || defined(__ia64__) \
+ || defined(CONFIG_SPARC) || defined(__ia64__) \
|| defined(__sh__) || defined(__mips__)
static int rx_copybreak = 1518;
#else
rx_work = 100;
goto rx_next;
}
- copy_skb->dev = de->dev;
if (!copying_skb) {
pci_unmap_single(de->pdev, mapping,
} else {
pci_dma_sync_single_for_cpu(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
skb_reserve(copy_skb, RX_OFFSET);
- memcpy(skb_put(copy_skb, len), skb->data, len);
-
+ skb_copy_from_linear_data(skb, skb_put(copy_skb, len),
+ len);
pci_dma_sync_single_for_device(de->pdev, mapping, len, PCI_DMA_FROMDEVICE);
/* We'll reuse the original ring buffer. */
sprintf(lp->adapter_name,"%s (%s)", name, gendev->bus_id);
lp->dma_size = (NUM_RX_DESC + NUM_TX_DESC) * sizeof(struct de4x5_desc);
-#if defined(__alpha__) || defined(__powerpc__) || defined(__sparc_v9__) || defined(DE4X5_DO_MEMCPY)
+#if defined(__alpha__) || defined(__powerpc__) || defined(CONFIG_SPARC) || defined(DE4X5_DO_MEMCPY)
lp->dma_size += RX_BUFF_SZ * NUM_RX_DESC + DE4X5_ALIGN;
#endif
lp->rx_ring = dma_alloc_coherent(gendev, lp->dma_size,
** Set up the RX descriptor ring (Intels)
** Allocate contiguous receive buffers, long word aligned (Alphas)
*/
-#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__sparc_v9__) && !defined(DE4X5_DO_MEMCPY)
+#if !defined(__alpha__) && !defined(__powerpc__) && !defined(CONFIG_SPARC) && !defined(DE4X5_DO_MEMCPY)
for (i=0; i<NUM_RX_DESC; i++) {
lp->rx_ring[i].status = 0;
lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ);
mii_get_phy(dev);
}
-#ifndef __sparc_v9__
printk(" and requires IRQ%d (provided by %s).\n", dev->irq,
-#else
- printk(" and requires IRQ%x (provided by %s).\n", dev->irq,
-#endif
((lp->bus == PCI) ? "PCI BIOS" : "EISA CNFG"));
}
struct de4x5_private *lp = netdev_priv(dev);
struct sk_buff *p;
-#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__sparc_v9__) && !defined(DE4X5_DO_MEMCPY)
+#if !defined(__alpha__) && !defined(__powerpc__) && !defined(CONFIG_SPARC) && !defined(DE4X5_DO_MEMCPY)
struct sk_buff *ret;
u_long i=0, tmp;
p = dev_alloc_skb(IEEE802_3_SZ + DE4X5_ALIGN + 2);
if (!p) return NULL;
- p->dev = dev;
tmp = virt_to_bus(p->data);
i = ((tmp + DE4X5_ALIGN) & ~DE4X5_ALIGN) - tmp;
skb_reserve(p, i);
p = dev_alloc_skb(len + 2);
if (!p) return NULL;
- p->dev = dev;
skb_reserve(p, 2); /* Align */
if (index < lp->rx_old) { /* Wrapped buffer */
short tlen = (lp->rxRingSize - lp->rx_old) * RX_BUFF_SZ;
/* transmit this packet */
txptr = db->tx_insert_ptr;
- memcpy(txptr->tx_buf_ptr, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, skb->len);
txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
/* Point to next transmit free descriptor */
skb = newskb;
/* size less than COPY_SIZE, allocate a rxlen SKB */
- skb->dev = dev;
skb_reserve(skb, 2); /* 16byte align */
- memcpy(skb_put(skb, rxlen), rxptr->rx_skb_ptr->data, rxlen);
+ skb_copy_from_linear_data(rxptr->rx_skb_ptr,
+ skb_put(skb, rxlen),
+ rxlen);
dmfe_reuse_skb(db, rxptr->rx_skb_ptr);
- } else {
- skb->dev = dev;
+ } else
skb_put(skb, rxlen);
- }
+
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(tp->pdev,
tp->rx_buffers[entry].mapping,
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(tp->pdev,
tp->rx_buffers[entry].mapping,
#include <asm/unaligned.h>
#include <asm/uaccess.h>
-#ifdef __sparc__
-#include <asm/pbm.h>
+#ifdef CONFIG_SPARC
+#include <asm/prom.h>
#endif
static char version[] __devinitdata =
/* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
#if defined(__alpha__) || defined(__arm__) || defined(__hppa__) \
- || defined(__sparc__) || defined(__ia64__) \
+ || defined(CONFIG_SPARC) || defined(__ia64__) \
|| defined(__sh__) || defined(__mips__)
static int rx_copybreak = 1518;
#else
static int csr0 = 0x01A00000 | 0xE000;
#elif defined(__i386__) || defined(__powerpc__) || defined(__x86_64__)
static int csr0 = 0x01A00000 | 0x8000;
-#elif defined(__sparc__) || defined(__hppa__)
+#elif defined(CONFIG_SPARC) || defined(__hppa__)
/* The UltraSparc PCI controllers will disconnect at every 64-byte
* crossing anyways so it makes no sense to tell Tulip to burst
* any more than that.
/* DM9102A has troubles with MRM & clear reserved bits 24:22, 20, 16, 7:1 */
if (tulip_uli_dm_quirk(pdev)) {
csr0 &= ~0x01f100ff;
-#if defined(__sparc__)
+#if defined(CONFIG_SPARC)
csr0 = (csr0 & ~0xff00) | 0xe000;
#endif
}
Many PCI BIOSes also incorrectly report the IRQ line, so we correct
that here as well. */
if (sum == 0 || sum == 6*0xff) {
-#if defined(__sparc__)
- struct pcidev_cookie *pcp = pdev->sysdata;
+#if defined(CONFIG_SPARC)
+ struct device_node *dp = pci_device_to_OF_node(pdev);
+ const unsigned char *addr;
+ int len;
#endif
eeprom_missing = 1;
for (i = 0; i < 5; i++)
dev->dev_addr[i] = last_phys_addr[i];
dev->dev_addr[i] = last_phys_addr[i] + 1;
-#if defined(__sparc__)
- if (pcp) {
- unsigned char *addr;
- int len;
-
- addr = of_get_property(pcp->prom_node,
- "local-mac-address", &len);
- if (addr && len == 6)
- memcpy(dev->dev_addr, addr, 6);
- }
+#if defined(CONFIG_SPARC)
+ addr = of_get_property(dp, "local-mac-address", &len);
+ if (addr && len == 6)
+ memcpy(dev->dev_addr, addr, 6);
#endif
#if defined(__i386__) || defined(__x86_64__) /* Patch up x86 BIOS bug. */
if (last_irq)
/* transmit this packet */
txptr = db->tx_insert_ptr;
- memcpy(txptr->tx_buf_ptr, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, txptr->tx_buf_ptr, skb->len);
txptr->tdes1 = cpu_to_le32(0xe1000000 | skb->len);
/* Point to next transmit free descriptor */
( (skb = dev_alloc_skb(rxlen + 2) )
!= NULL) ) {
/* size less than COPY_SIZE, allocate a rxlen SKB */
- skb->dev = dev;
skb_reserve(skb, 2); /* 16byte align */
- memcpy(skb_put(skb, rxlen), rxptr->rx_skb_ptr->tail, rxlen);
+ memcpy(skb_put(skb, rxlen),
+ skb_tail_pointer(rxptr->rx_skb_ptr),
+ rxlen);
uli526x_reuse_skb(db, rxptr->rx_skb_ptr);
- } else {
- skb->dev = dev;
+ } else
skb_put(skb, rxlen);
- }
+
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
if (!(rxptr->rdes0 & cpu_to_le32(0x80000000))) {
rxptr->rx_skb_ptr = skb;
- rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
+ rxptr->rdes2 = cpu_to_le32(pci_map_single(db->pdev,
+ skb_tail_pointer(skb),
+ RX_ALLOC_SIZE,
+ PCI_DMA_FROMDEVICE));
wmb();
rxptr->rdes0 = cpu_to_le32(0x80000000);
db->rx_avail_cnt++;
if ( ( skb = dev_alloc_skb(RX_ALLOC_SIZE) ) == NULL )
break;
rxptr->rx_skb_ptr = skb; /* FIXME (?) */
- rxptr->rdes2 = cpu_to_le32( pci_map_single(db->pdev, skb->tail, RX_ALLOC_SIZE, PCI_DMA_FROMDEVICE) );
+ rxptr->rdes2 = cpu_to_le32(pci_map_single(db->pdev,
+ skb_tail_pointer(skb),
+ RX_ALLOC_SIZE,
+ PCI_DMA_FROMDEVICE));
wmb();
rxptr->rdes0 = cpu_to_le32(0x80000000);
rxptr = rxptr->next_rx_desc;
np->rx_skbuff[i] = skb;
if (skb == NULL)
break;
- skb->dev = dev; /* Mark as being used by this device. */
np->rx_addr[i] = pci_map_single(np->pci_dev,skb->data,
np->rx_buf_sz,PCI_DMA_FROMDEVICE);
}
#elif defined(__powerpc__) || defined(__i386__) || defined(__alpha__) || defined(__ia64__) || defined(__x86_64__)
i |= 0xE000;
-#elif defined(__sparc__) || defined (CONFIG_PARISC)
+#elif defined(CONFIG_SPARC) || defined (CONFIG_PARISC)
i |= 0x4800;
#else
#warning Processor architecture undefined
to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(np->pci_dev,np->rx_addr[entry],
np->rx_skbuff[entry]->len,
np->rx_skbuff[entry] = skb;
if (skb == NULL)
break; /* Better luck next round. */
- skb->dev = dev; /* Mark as being used by this device. */
np->rx_addr[entry] = pci_map_single(np->pci_dev,
skb->data,
np->rx_buf_sz, PCI_DMA_FROMDEVICE);
sometimes sends more than you ask it to. */
memset(&card->tx_buffer[bufferoffsets[desc]/4],0,1536);
- memcpy(&(card->tx_buffer[bufferoffsets[desc]/4]),skb->data,skb->len);
-
-
+ skb_copy_from_linear_data(skb,
+ &(card->tx_buffer[bufferoffsets[desc] / 4]),
+ skb->len);
/* FIXME: The specification tells us that the length we send HAS to be a multiple of
4 bytes. */
card->stats.rx_dropped++;
goto out;
}
- skb->dev = dev;
skb_reserve(skb, 2);
eth_copy_and_sum(skb, (unsigned char*)&card->rx_buffer[bufferoffset / 4], pkt_len, 0);
skb_put(skb, pkt_len);
static int csr0 = 0x01A00000 | 0xE000;
#elif defined(__powerpc__)
static int csr0 = 0x01B00000 | 0x8000;
-#elif defined(__sparc__)
+#elif defined(CONFIG_SPARC)
static int csr0 = 0x01B00080 | 0x8000;
#elif defined(__i386__)
static int csr0 = 0x01A00000 | 0x8000;
tp->tx_skbuff[entry] = skb;
if (tp->chip_id == X3201_3) {
- memcpy(tp->tx_aligned_skbuff[entry]->data,skb->data,skb->len);
+ skb_copy_from_linear_data(skb,
+ tp->tx_aligned_skbuff[entry]->data,
+ skb->len);
tp->tx_ring[entry].buffer1 = virt_to_bus(tp->tx_aligned_skbuff[entry]->data);
} else
tp->tx_ring[entry].buffer1 = virt_to_bus(skb->data);
to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
#if ! defined(__alpha__)
eth_copy_and_sum(skb, bus_to_virt(tp->rx_ring[entry].buffer1),
/*
* Changes:
*
+ * Brian Braunstein <linuxkernel@bristyle.com> 2007/03/23
+ * Fixed hw address handling. Now net_device.dev_addr is kept consistent
+ * with tun.dev_addr when the address is set by this module.
+ *
* Mike Kershaw <dragorn@kismetwireless.net> 2005/08/14
* Add TUNSETLINK ioctl to set the link encapsulation
*
dev->set_multicast_list = tun_net_mclist;
ether_setup(dev);
- random_ether_addr(dev->dev_addr);
+
+ /* random address already created for us by tun_set_iff, use it */
+ memcpy(dev->dev_addr, tun->dev_addr, min(sizeof(tun->dev_addr), sizeof(dev->dev_addr)) );
+
dev->tx_queue_len = TUN_READQ_SIZE; /* We prefer our own queue length */
break;
}
return -EFAULT;
}
- skb->dev = tun->dev;
switch (tun->flags & TUN_TYPE_MASK) {
case TUN_TUN_DEV:
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = pi.proto;
+ skb->dev = tun->dev;
break;
case TUN_TAP_DEV:
skb->protocol = eth_type_trans(skb, tun->dev);
* - we are multicast promiscous.
* - we belong to the multicast group.
*/
- memcpy(addr, skb->data,
- min_t(size_t, sizeof addr, skb->len));
+ skb_copy_from_linear_data(skb, addr, min_t(size_t, sizeof addr,
+ skb->len));
bit_nr = ether_crc(sizeof addr, addr) >> 26;
if ((tun->if_flags & IFF_PROMISC) ||
memcmp(addr, tun->dev_addr, sizeof addr) == 0 ||
return 0;
case SIOCGIFHWADDR:
+ /* Note: the actual net device's address may be different */
memcpy(ifr.ifr_hwaddr.sa_data, tun->dev_addr,
min(sizeof ifr.ifr_hwaddr.sa_data, sizeof tun->dev_addr));
if (copy_to_user( argp, &ifr, sizeof ifr))
return 0;
case SIOCSIFHWADDR:
- /** Set the character device's hardware address. This is used when
- * filtering packets being sent from the network device to the character
- * device. */
- memcpy(tun->dev_addr, ifr.ifr_hwaddr.sa_data,
- min(sizeof ifr.ifr_hwaddr.sa_data, sizeof tun->dev_addr));
- DBG(KERN_DEBUG "%s: set hardware address: %x:%x:%x:%x:%x:%x\n",
- tun->dev->name,
- tun->dev_addr[0], tun->dev_addr[1], tun->dev_addr[2],
- tun->dev_addr[3], tun->dev_addr[4], tun->dev_addr[5]);
- return 0;
+ {
+ /* try to set the actual net device's hw address */
+ int ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr);
+
+ if (ret == 0) {
+ /** Set the character device's hardware address. This is used when
+ * filtering packets being sent from the network device to the character
+ * device. */
+ memcpy(tun->dev_addr, ifr.ifr_hwaddr.sa_data,
+ min(sizeof ifr.ifr_hwaddr.sa_data, sizeof tun->dev_addr));
+ DBG(KERN_DEBUG "%s: set hardware address: %x:%x:%x:%x:%x:%x\n",
+ tun->dev->name,
+ tun->dev_addr[0], tun->dev_addr[1], tun->dev_addr[2],
+ tun->dev_addr[3], tun->dev_addr[4], tun->dev_addr[5]);
+ }
+
+ return ret;
+ }
case SIOCADDMULTI:
/** Add the specified group to the character device's multicast filter
if(pkt_len < rx_copybreak &&
(new_skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- new_skb->dev = tp->dev;
skb_reserve(new_skb, 2);
pci_dma_sync_single_for_cpu(tp->pdev, dma_addr,
PKT_BUF_SZ,
copying to a minimally-sized skbuff. */
if (pkt_len < rx_copybreak &&
(skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single_for_cpu(rp->pdev,
rp->rx_skbuff_dma[entry],
if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN)
skb_reserve(new_skb, 2);
- memcpy(new_skb->data, rx_skb[0]->data, pkt_size);
+ skb_copy_from_linear_data(rx_skb[0], new_skb->data,
+ pkt_size);
*rx_skb = new_skb;
ret = 0;
}
vptr->stats.multicast++;
skb = rd_info->skb;
- skb->dev = vptr->dev;
pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
vptr->rx_buf_sz, PCI_DMA_FROMDEVICE);
PCI_DMA_FROMDEVICE);
skb_put(skb, pkt_len - 4);
- skb->protocol = eth_type_trans(skb, skb->dev);
+ skb->protocol = eth_type_trans(skb, vptr->dev);
stats->rx_bytes += pkt_len;
netif_rx(skb);
if (pktlen < ETH_ZLEN) {
/* Cannot occur until ZC support */
pktlen = ETH_ZLEN;
- memcpy(tdinfo->buf, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
memset(tdinfo->buf + skb->len, 0, ETH_ZLEN - skb->len);
tdinfo->skb = skb;
tdinfo->skb_dma[0] = tdinfo->buf_dma;
int nfrags = skb_shinfo(skb)->nr_frags;
tdinfo->skb = skb;
if (nfrags > 6) {
- memcpy(tdinfo->buf, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, tdinfo->buf, skb->len);
tdinfo->skb_dma[0] = tdinfo->buf_dma;
td_ptr->tdesc0.pktsize =
td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
*/
if ((vptr->flags & VELOCITY_FLAGS_TX_CSUM)
&& (skb->ip_summed == CHECKSUM_PARTIAL)) {
- struct iphdr *ip = skb->nh.iph;
+ const struct iphdr *ip = ip_hdr(skb);
if (ip->protocol == IPPROTO_TCP)
td_ptr->tdesc1.TCR |= TCR0_TCPCK;
else if (ip->protocol == IPPROTO_UDP)
}
chan->rx_skb->protocol = htons(ETH_P_WAN_PPP);
chan->rx_skb->dev = chan->pppdev.dev;
- chan->rx_skb->mac.raw = chan->rx_skb->data;
+ skb_reset_mac_header(chan->rx_skb);
chan->stats.rx_packets++;
chan->stats.rx_bytes += chan->cosa->rxsize;
netif_rx(chan->rx_skb);
++chan->ifstats.rx_packets;
chan->ifstats.rx_bytes += pktlen;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
netif_rx(skb);
dev->last_rx = jiffies; /* timestamp */
}
if (process)
{
/* we've set up the protocol, so discard the header */
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, header);
dlp->stats.rx_bytes += skb->len;
netif_rx(skb);
struct TxFD *tx_fd = dpriv->tx_fd + last;
skb->len = DUMMY_SKB_SIZE;
- memcpy(skb->data, version, strlen(version)%DUMMY_SKB_SIZE);
+ skb_copy_to_linear_data(skb, version,
+ strlen(version) % DUMMY_SKB_SIZE);
tx_fd->state = FrameEnd | TO_STATE_TX(DUMMY_SKB_SIZE);
tx_fd->data = pci_map_single(dpriv->pci_priv->pdev, skb->data,
DUMMY_SKB_SIZE, PCI_DMA_TODEVICE);
static __be16 farsync_type_trans(struct sk_buff *skb, struct net_device *dev)
{
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_HOST;
return htons(ETH_P_CUST);
}
skb_put(skb, sizeof(struct cisco_packet));
skb->priority = TC_PRIO_CONTROL;
skb->dev = dev;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
dev_queue_xmit(skb);
}
skb->protocol = __constant_htons(NLPID_CCITT_ANSI_LMI);
fr_hard_header(&skb, LMI_CCITT_ANSI_DLCI);
}
- data = skb->tail;
+ data = skb_tail_pointer(skb);
data[i++] = LMI_CALLREF;
data[i++] = dce ? LMI_STATUS : LMI_STATUS_ENQUIRY;
if (lmi == LMI_ANSI)
skb_put(skb, i);
skb->priority = TC_PRIO_CONTROL;
skb->dev = dev;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
dev_queue_xmit(skb);
}
stats->rx_bytes += skb->len;
if (pvc->state.becn)
stats->rx_compressed++;
- skb->dev = dev;
netif_rx(skb);
return NET_RX_SUCCESS;
} else {
/* Drop the CRC - it's not a good idea to try and negotiate it ;) */
skb_trim(skb, skb->len-2);
skb->protocol=__constant_htons(ETH_P_WAN_PPP);
- skb->mac.raw=skb->data;
+ skb_reset_mac_header(skb);
skb->dev=c->netdevice;
/*
* Send it to the PPP layer. We don't have time to process
if (nsb) {
sc->lmc_rxq[i] = nsb;
nsb->dev = dev;
- sc->lmc_rxring[i].buffer1 = virt_to_bus (nsb->tail);
+ sc->lmc_rxring[i].buffer1 = virt_to_bus(skb_tail_pointer(nsb));
}
sc->failed_recv_alloc = 1;
goto skip_packet;
skb_put (skb, len);
skb->protocol = lmc_proto_type(sc, skb);
skb->protocol = htons(ETH_P_WAN_PPP);
- skb->mac.raw = skb->data;
-// skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ /* skb_reset_network_header(skb); */
skb->dev = dev;
lmc_proto_netif(sc, skb);
if (nsb) {
sc->lmc_rxq[i] = nsb;
nsb->dev = dev;
- sc->lmc_rxring[i].buffer1 = virt_to_bus (nsb->tail);
+ sc->lmc_rxring[i].buffer1 = virt_to_bus(skb_tail_pointer(nsb));
/* Transferred to 21140 below */
}
else {
if(!nsb) {
goto give_it_anyways;
}
- memcpy(skb_put(nsb, len), skb->data, len);
+ skb_copy_from_linear_data(skb, skb_put(nsb, len), len);
nsb->protocol = lmc_proto_type(sc, skb);
- nsb->mac.raw = nsb->data;
-// nsb->nh.raw = nsb->data;
+ skb_reset_mac_header(nsb);
+ /* skb_reset_network_header(nsb); */
nsb->dev = dev;
lmc_proto_netif(sc, nsb);
}
sc->lmc_rxring[i].status = 0x80000000;
/* used to be PKT_BUF_SZ now uses skb since we lose some to head room */
- sc->lmc_rxring[i].length = skb->end - skb->data;
+ sc->lmc_rxring[i].length = skb_tailroom(skb);
/* use to be tail which is dumb since you're thinking why write
* to the end of the packj,et but since there's nothing there tail == data
skb->dev = dev;
skb->protocol = htons(ETH_P_CUST);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_HOST;
skb->len = 10 + skb_main->len;
- memcpy(skb->data, dev->name, 5);
+ skb_copy_to_linear_data(skb, dev->name, 5);
skb->data[5] = '[';
skb->data[6] = rx_tx;
skb->data[7] = ']';
skb->data[8] = ':';
skb->data[9] = ' ';
- memcpy(&skb->data[10], skb_main->data, skb_main->len);
+ skb_copy_from_linear_data(skb_main, &skb->data[10], skb_main->len);
netif_rx(skb);
}
skb_put (skb, 10 + len);
skb->dev = dev->dev;
skb->protocol = htons(ETH_P_CUST);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_HOST;
skb->len = 10 + len;
- memcpy(skb->data,dev->dev->name,5);
+ skb_copy_to_linear_data(skb, dev->dev->name, 5);
skb->data[5] = '[';
skb->data[6] = rxtx;
skb->data[7] = ']';
skb->data[8] = ':';
skb->data[9] = ' ';
- memcpy(&skb->data[10], buf, len);
+ skb_copy_to_linear_data_offset(skb, 10, buf, len);
netif_rx(skb);
}
if( !skb )
return NULL;
-#ifdef CONFIG_SBNI_MULTILINE
- skb->dev = ((struct net_local *) dev->priv)->master;
-#else
- skb->dev = dev;
-#endif
skb_reserve( skb, 2 ); /* Align IP on longword boundaries */
return skb;
}
/* Drop the CRC - it's not a good idea to try and negotiate it ;) */
skb_trim(skb, skb->len-2);
skb->protocol=htons(ETH_P_WAN_PPP);
- skb->mac.raw=skb->data;
+ skb_reset_mac_header(skb);
skb->dev=c->netdevice;
/*
* Send it to the PPP layer. We don't have time to process
unsigned long flags;
skb->dev=dev;
- skb->mac.raw=skb->data;
+ skb_reset_mac_header(skb);
if (dev->flags & IFF_RUNNING)
{
else
{
skb_put(skb, ct);
- memcpy(skb->data, rxb, ct);
+ skb_copy_to_linear_data(skb, rxb, ct);
c->stats.rx_packets++;
c->stats.rx_bytes+=ct;
}
*/
c->tx_next_ptr=c->tx_dma_buf[c->tx_dma_used];
c->tx_dma_used^=1; /* Flip temp buffer */
- memcpy(c->tx_next_ptr, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, c->tx_next_ptr, skb->len);
}
else
c->tx_next_ptr=skb->data;
# Wireless LAN device configuration
#
-menu "Wireless LAN (non-hamradio)"
- depends on NETDEVICES
-
-config NET_RADIO
- bool "Wireless LAN drivers (non-hamradio) & Wireless Extensions"
- select WIRELESS_EXT
- ---help---
- Support for wireless LANs and everything having to do with radio,
- but not with amateur radio or FM broadcasting.
-
- Saying Y here also enables the Wireless Extensions (creates
- /proc/net/wireless and enables iwconfig access). The Wireless
- Extension is a generic API allowing a driver to expose to the user
- space configuration and statistics specific to common Wireless LANs.
- The beauty of it is that a single set of tool can support all the
- variations of Wireless LANs, regardless of their type (as long as
- the driver supports Wireless Extension). Another advantage is that
- these parameters may be changed on the fly without restarting the
- driver (or Linux). If you wish to use Wireless Extensions with
- wireless PCMCIA (PC-) cards, you need to say Y here; you can fetch
- the tools from
- <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>.
+menu "Wireless LAN"
-config NET_WIRELESS_RTNETLINK
- bool "Wireless Extension API over RtNetlink"
- depends on NET_RADIO
+config WLAN_PRE80211
+ bool "Wireless LAN (pre-802.11)"
+ depends on NETDEVICES
---help---
- Support the Wireless Extension API over the RtNetlink socket
- in addition to the traditional ioctl interface (selected above).
+ Say Y if you have any pre-802.11 wireless LAN hardware.
- For now, few tools use this facility, but it might grow in the
- future. The only downside is that it adds 4.5 kB to your kernel.
-
-# Note : the cards are obsolete (can't buy them anymore), but the drivers
-# are not, as people are still using them...
-comment "Obsolete Wireless cards support (pre-802.11)"
- depends on NET_RADIO && (INET || ISA || PCMCIA)
+ This option does not affect the kernel build, it only
+ lets you choose drivers.
config STRIP
tristate "STRIP (Metricom starmode radio IP)"
- depends on NET_RADIO && INET
+ depends on INET && WLAN_PRE80211
+ select WIRELESS_EXT
---help---
Say Y if you have a Metricom radio and intend to use Starmode Radio
IP. STRIP is a radio protocol developed for the MosquitoNet project
config ARLAN
tristate "Aironet Arlan 655 & IC2200 DS support"
- depends on NET_RADIO && ISA && !64BIT
+ depends on ISA && !64BIT && WLAN_PRE80211
+ select WIRELESS_EXT
---help---
Aironet makes Arlan, a class of wireless LAN adapters. These use the
www.Telxon.com chip, which is also used on several similar cards.
config WAVELAN
tristate "AT&T/Lucent old WaveLAN & DEC RoamAbout DS ISA support"
- depends on NET_RADIO && ISA
+ depends on ISA && WLAN_PRE80211
+ select WIRELESS_EXT
---help---
The Lucent WaveLAN (formerly NCR and AT&T; or DEC RoamAbout DS) is
a Radio LAN (wireless Ethernet-like Local Area Network) using the
config PCMCIA_WAVELAN
tristate "AT&T/Lucent old WaveLAN Pcmcia wireless support"
- depends on NET_RADIO && PCMCIA
+ depends on PCMCIA && WLAN_PRE80211
+ select WIRELESS_EXT
help
Say Y here if you intend to attach an AT&T/Lucent Wavelan PCMCIA
(PC-card) wireless Ethernet networking card to your computer. This
config PCMCIA_NETWAVE
tristate "Xircom Netwave AirSurfer Pcmcia wireless support"
- depends on NET_RADIO && PCMCIA
+ depends on PCMCIA && WLAN_PRE80211
+ select WIRELESS_EXT
help
Say Y here if you intend to attach this type of PCMCIA (PC-card)
wireless Ethernet networking card to your computer.
To compile this driver as a module, choose M here: the module will be
called netwave_cs. If unsure, say N.
-comment "Wireless 802.11 Frequency Hopping cards support"
- depends on NET_RADIO && PCMCIA
+
+config WLAN_80211
+ bool "Wireless LAN (IEEE 802.11)"
+ depends on NETDEVICES
+ ---help---
+ Say Y if you have any 802.11 wireless LAN hardware.
+
+ This option does not affect the kernel build, it only
+ lets you choose drivers.
config PCMCIA_RAYCS
tristate "Aviator/Raytheon 2.4MHz wireless support"
- depends on NET_RADIO && PCMCIA
+ depends on PCMCIA && WLAN_80211
+ select WIRELESS_EXT
---help---
Say Y here if you intend to attach an Aviator/Raytheon PCMCIA
(PC-card) wireless Ethernet networking card to your computer.
To compile this driver as a module, choose M here: the module will be
called ray_cs. If unsure, say N.
-comment "Wireless 802.11b ISA/PCI cards support"
- depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA)
-
config IPW2100
tristate "Intel PRO/Wireless 2100 Network Connection"
- depends on NET_RADIO && PCI
+ depends on PCI && WLAN_80211
+ select WIRELESS_EXT
select FW_LOADER
select IEEE80211
---help---
config IPW2200
tristate "Intel PRO/Wireless 2200BG and 2915ABG Network Connection"
- depends on NET_RADIO && PCI
+ depends on PCI && WLAN_80211
+ select WIRELESS_EXT
select FW_LOADER
select IEEE80211
---help---
config AIRO
tristate "Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards"
- depends on NET_RADIO && ISA_DMA_API && (PCI || BROKEN)
+ depends on ISA_DMA_API && WLAN_80211 && (PCI || BROKEN)
+ select WIRELESS_EXT
select CRYPTO
---help---
This is the standard Linux driver to support Cisco/Aironet ISA and
config HERMES
tristate "Hermes chipset 802.11b support (Orinoco/Prism2/Symbol)"
- depends on NET_RADIO && (PPC_PMAC || PCI || PCMCIA)
+ depends on (PPC_PMAC || PCI || PCMCIA) && WLAN_80211
+ select WIRELESS_EXT
---help---
A driver for 802.11b wireless cards based on the "Hermes" or
Intersil HFA384x (Prism 2) MAC controller. This includes the vast
config ATMEL
tristate "Atmel at76c50x chipset 802.11b support"
- depends on NET_RADIO && (PCI || PCMCIA)
+ depends on (PCI || PCMCIA) && WLAN_80211
+ select WIRELESS_EXT
select FW_LOADER
select CRC32
---help---
Enable support for PCI and mini-PCI cards containing the
Atmel at76c506 chip.
-# If Pcmcia is compiled in, offer Pcmcia cards...
-comment "Wireless 802.11b Pcmcia/Cardbus cards support"
- depends on NET_RADIO && PCMCIA
-
config PCMCIA_HERMES
tristate "Hermes PCMCIA card support"
- depends on NET_RADIO && PCMCIA && HERMES
+ depends on PCMCIA && HERMES
---help---
A driver for "Hermes" chipset based PCMCIA wireless adaptors, such
as the Lucent WavelanIEEE/Orinoco cards and their OEM (Cabletron/
config PCMCIA_SPECTRUM
tristate "Symbol Spectrum24 Trilogy PCMCIA card support"
- depends on NET_RADIO && PCMCIA && HERMES
+ depends on PCMCIA && HERMES
select FW_LOADER
---help---
config AIRO_CS
tristate "Cisco/Aironet 34X/35X/4500/4800 PCMCIA cards"
- depends on NET_RADIO && PCMCIA && (BROKEN || !M32R)
+ depends on PCMCIA && (BROKEN || !M32R) && WLAN_80211
+ select WIRELESS_EXT
select CRYPTO
select CRYPTO_AES
---help---
config PCMCIA_ATMEL
tristate "Atmel at76c502/at76c504 PCMCIA cards"
- depends on NET_RADIO && ATMEL && PCMCIA
+ depends on ATMEL && PCMCIA
+ select WIRELESS_EXT
select FW_LOADER
select CRC32
---help---
config PCMCIA_WL3501
tristate "Planet WL3501 PCMCIA cards"
- depends on NET_RADIO && EXPERIMENTAL && PCMCIA
+ depends on EXPERIMENTAL && PCMCIA && WLAN_80211
+ select WIRELESS_EXT
---help---
A driver for WL3501 PCMCIA 802.11 wireless cards made by Planet.
It has basic support for Linux wireless extensions and initial
micro support for ethtool.
-comment "Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support"
- depends on NET_RADIO && PCI
config PRISM54
tristate 'Intersil Prism GT/Duette/Indigo PCI/Cardbus'
- depends on PCI && NET_RADIO && EXPERIMENTAL
+ depends on PCI && EXPERIMENTAL && WLAN_80211
+ select WIRELESS_EXT
select FW_LOADER
---help---
Enable PCI and Cardbus support for the following chipset based cards:
config USB_ZD1201
tristate "USB ZD1201 based Wireless device support"
- depends on USB && NET_RADIO
+ depends on USB && WLAN_80211
+ select WIRELESS_EXT
select FW_LOADER
---help---
Say Y if you want to use wireless LAN adapters based on the ZyDAS
source "drivers/net/wireless/bcm43xx/Kconfig"
source "drivers/net/wireless/zd1211rw/Kconfig"
-# yes, this works even when no drivers are selected
-config NET_WIRELESS
- bool
- depends on NET_RADIO && (ISA || PCI || PPC_PMAC || PCMCIA)
- default y
-
endmenu
-
static int wll_header_parse(struct sk_buff *skb, unsigned char *haddr)
{
- memcpy(haddr, skb->mac.raw + 10, ETH_ALEN);
+ memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN);
return ETH_ALEN;
}
OUT4500( apriv, EVACK, EV_RX);
if (test_bit(FLAG_802_11, &apriv->flags)) {
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_OTHERHOST;
skb->dev = apriv->wifidev;
skb->protocol = htons(ETH_P_802_2);
- } else {
- skb->dev = dev;
+ } else
skb->protocol = eth_type_trans(skb,dev);
- }
skb->dev->last_rx = jiffies;
skb->ip_summed = CHECKSUM_NONE;
}
#endif /* WIRELESS_SPY */
- skb->dev = ai->dev;
skb->ip_summed = CHECKSUM_NONE;
skb->protocol = eth_type_trans(skb, ai->dev);
skb->dev->last_rx = jiffies;
wireless_spy_update(ai->dev, sa, &wstats);
}
#endif /* IW_WIRELESS_SPY */
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_OTHERHOST;
skb->dev = ai->wifidev;
skb->protocol = htons(ETH_P_802_2);
break;
}
skb_reserve(skb, 2);
- skb->dev = dev;
skbtmp = skb_put(skb, pkt_len);
memcpy_fromio(skbtmp + ARLAN_FAKE_HDR_LEN, ((char __iomem *) arlan) + rxOffset, pkt_len - ARLAN_FAKE_HDR_LEN);
if (priv->wep_is_on)
frame_ctl |= IEEE80211_FCTL_PROTECTED;
if (priv->operating_mode == IW_MODE_ADHOC) {
- memcpy(&header.addr1, skb->data, 6);
+ skb_copy_from_linear_data(skb, &header.addr1, 6);
memcpy(&header.addr2, dev->dev_addr, 6);
memcpy(&header.addr3, priv->BSSID, 6);
} else {
frame_ctl |= IEEE80211_FCTL_TODS;
memcpy(&header.addr1, priv->CurrentBSSID, 6);
memcpy(&header.addr2, dev->dev_addr, 6);
- memcpy(&header.addr3, skb->data, 6);
+ skb_copy_from_linear_data(skb, &header.addr3, 6);
}
if (priv->use_wpa)
memcpy(&skbp[6], header->addr2, 6); /* source address */
priv->dev->last_rx = jiffies;
- skb->dev = priv->dev;
skb->protocol = eth_type_trans(skb, priv->dev);
skb->ip_summed = CHECKSUM_NONE;
netif_rx(skb);
priv->rx_buf,
priv->frag_len + 12);
priv->dev->last_rx = jiffies;
- skb->dev = priv->dev;
skb->protocol = eth_type_trans(skb, priv->dev);
skb->ip_summed = CHECKSUM_NONE;
netif_rx(skb);
config BCM43XX
tristate "Broadcom BCM43xx wireless support"
- depends on PCI && IEEE80211 && IEEE80211_SOFTMAC && NET_RADIO && EXPERIMENTAL
+ depends on PCI && IEEE80211 && IEEE80211_SOFTMAC && WLAN_80211 && EXPERIMENTAL
+ select WIRELESS_EXT
select FW_LOADER
select HW_RANDOM
---help---
assert(0);
return;
}
- memcpy(skb_put(bounce_skb, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(bounce_skb, skb->len),
+ skb->len);
dev_kfree_skb_any(skb);
skb = bounce_skb;
}
config HOSTAP
tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)"
- depends on NET_RADIO
+ depends on WLAN_80211
+ select WIRELESS_EXT
select IEEE80211
select IEEE80211_CRYPT_WEP
---help---
ret = skb->len - phdrlen;
skb->dev = dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, hdrlen);
if (prism_header)
skb_pull(skb, phdrlen);
if (frag == 0) {
/* copy first fragment (including full headers) into
* beginning of the fragment cache skb */
- memcpy(skb_put(frag_skb, flen), skb->data, flen);
+ skb_copy_from_linear_data(skb, skb_put(frag_skb, flen),
+ flen);
} else {
/* append frame payload to the end of the fragment
* cache skb */
- memcpy(skb_put(frag_skb, flen), skb->data + hdrlen,
- flen);
+ skb_copy_from_linear_data_offset(skb, hdrlen,
+ skb_put(frag_skb,
+ flen), flen);
}
dev_kfree_skb(skb);
skb = NULL;
skb->len >= ETH_HLEN + ETH_ALEN) {
/* Non-standard frame: get addr4 from its bogus location after
* the payload */
- memcpy(skb->data + ETH_ALEN,
- skb->data + skb->len - ETH_ALEN, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, skb->len - ETH_ALEN,
+ skb->data + ETH_ALEN,
+ ETH_ALEN);
skb_trim(skb, skb->len - ETH_ALEN);
}
if (skb2 != NULL) {
/* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb2->mac.raw = skb2->nh.raw = skb2->data;
- /* skb2->nh.raw = skb2->data + ETH_HLEN; */
skb2->dev = dev;
+ skb2->protocol = __constant_htons(ETH_P_802_3);
+ skb_reset_mac_header(skb2);
+ skb_reset_network_header(skb2);
+ /* skb2->network_header += ETH_HLEN; */
dev_queue_xmit(skb2);
}
if (skb) {
skb->protocol = eth_type_trans(skb, dev);
memset(skb->cb, 0, sizeof(skb->cb));
- skb->dev = dev;
netif_rx(skb);
}
fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
/* From&To DS: Addr1 = RA, Addr2 = TA, Addr3 = DA,
* Addr4 = SA */
- memcpy(&hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, ETH_ALEN,
+ &hdr.addr4, ETH_ALEN);
hdr_len += ETH_ALEN;
} else {
/* bogus 4-addr format to workaround Prism2 station
/* SA from skb->data + ETH_ALEN will be added after
* frame payload; use hdr.addr4 as a temporary buffer
*/
- memcpy(&hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, ETH_ALEN,
+ &hdr.addr4, ETH_ALEN);
need_tailroom += ETH_ALEN;
}
else
memcpy(&hdr.addr1, local->bssid, ETH_ALEN);
memcpy(&hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(&hdr.addr3, skb->data, ETH_ALEN);
+ skb_copy_from_linear_data(skb, &hdr.addr3, ETH_ALEN);
} else if (local->iw_mode == IW_MODE_MASTER && !to_assoc_ap) {
fc |= IEEE80211_FCTL_FROMDS;
/* From DS: Addr1 = DA, Addr2 = BSSID, Addr3 = SA */
- memcpy(&hdr.addr1, skb->data, ETH_ALEN);
+ skb_copy_from_linear_data(skb, &hdr.addr1, ETH_ALEN);
memcpy(&hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(&hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, ETH_ALEN, &hdr.addr3,
+ ETH_ALEN);
} else if (local->iw_mode == IW_MODE_INFRA || to_assoc_ap) {
fc |= IEEE80211_FCTL_TODS;
/* To DS: Addr1 = BSSID, Addr2 = SA, Addr3 = DA */
memcpy(&hdr.addr1, to_assoc_ap ?
local->assoc_ap_addr : local->bssid, ETH_ALEN);
- memcpy(&hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(&hdr.addr3, skb->data, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, ETH_ALEN, &hdr.addr2,
+ ETH_ALEN);
+ skb_copy_from_linear_data(skb, &hdr.addr3, ETH_ALEN);
} else if (local->iw_mode == IW_MODE_ADHOC) {
/* not From/To DS: Addr1 = DA, Addr2 = SA, Addr3 = BSSID */
- memcpy(&hdr.addr1, skb->data, ETH_ALEN);
- memcpy(&hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ skb_copy_from_linear_data(skb, &hdr.addr1, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, ETH_ALEN, &hdr.addr2,
+ ETH_ALEN);
memcpy(&hdr.addr3, local->bssid, ETH_ALEN);
}
iface->stats.tx_packets++;
iface->stats.tx_bytes += skb->len;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
meta = (struct hostap_skb_tx_data *) skb->cb;
memset(meta, 0, sizeof(*meta));
meta->magic = HOSTAP_SKB_TX_DATA_MAGIC;
meta->tx_cb_idx = tx_cb_idx;
skb->dev = dev;
- skb->mac.raw = skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
dev_queue_xmit(skb);
}
#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
return NULL;
}
- memcpy(tmpbuf, skb->data + ap->crypt->extra_mpdu_prefix_len,
- WLAN_AUTH_CHALLENGE_LEN);
+ skb_copy_from_linear_data_offset(skb, ap->crypt->extra_mpdu_prefix_len,
+ tmpbuf, WLAN_AUTH_CHALLENGE_LEN);
dev_kfree_skb(skb);
return tmpbuf;
/* skb->data starts with txdesc->frame_control */
hdr_len = 24;
- memcpy(&txdesc.frame_control, skb->data, hdr_len);
+ skb_copy_from_linear_data(skb, &txdesc.frame_control, hdr_len);
fc = le16_to_cpu(txdesc.frame_control);
if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA &&
(fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS) &&
skb->len >= 30) {
/* Addr4 */
- memcpy(txdesc.addr4, skb->data + hdr_len, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, hdr_len, txdesc.addr4,
+ ETH_ALEN);
hdr_len += ETH_ALEN;
}
memcpy(skb_put(skb, len), payload, len);
skb->dev = local->dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
cb->func(skb, ok, cb->data);
}
int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
{
- memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */
+ memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
return ETH_ALEN;
}
int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
{
- if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) {
- memcpy(haddr, skb->mac.raw +
- sizeof(struct linux_wlan_ng_prism_hdr) + 10,
+ const unsigned char *mac = skb_mac_header(skb);
+
+ if (*(u32 *)mac == LWNG_CAP_DID_BASE) {
+ memcpy(haddr, mac + sizeof(struct linux_wlan_ng_prism_hdr) + 10,
ETH_ALEN); /* addr2 */
- } else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */
- memcpy(haddr, skb->mac.raw +
- sizeof(struct linux_wlan_ng_cap_hdr) + 10,
+ } else { /* (*(u32 *)mac == htonl(LWNG_CAPHDR_VERSION)) */
+ memcpy(haddr, mac + sizeof(struct linux_wlan_ng_cap_hdr) + 10,
ETH_ALEN); /* addr2 */
}
return ETH_ALEN;
meta->iface = netdev_priv(dev);
skb->dev = dev;
- skb->mac.raw = skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
dev_queue_xmit(skb);
return 0;
#ifdef IPW2100_RX_DEBUG
/* Make a copy of the frame so we can dump it to the logs if
* ieee80211_rx fails */
- memcpy(packet_data, packet->skb->data,
- min_t(u32, status->frame_size, IPW_RX_NIC_BUFFER_LENGTH));
+ skb_copy_from_linear_data(packet->skb, packet_data,
+ min_t(u32, status->frame_size,
+ IPW_RX_NIC_BUFFER_LENGTH));
#endif
if (!ieee80211_rx(priv->ieee, packet->skb, stats)) {
skb->dev = priv->ieee->dev;
/* Point raw at the ieee80211_stats */
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = __constant_htons(ETH_P_80211_STATS);
rt_hdr->it_len = dst->len;
- memcpy(skb_put(dst, len), src->data, len);
+ skb_copy_from_linear_data(src, skb_put(dst, len), len);
if (!ieee80211_rx(priv->prom_priv->ieee, dst, &dummystats))
dev_kfree_skb_any(dst);
skb_reserve( skb, 2); /* Align IP on 16 byte */
skb_put( skb, rcvLen);
- skb->dev = dev;
/* Copy packet fragments to the skb data area */
ptr = (u_char*) skb->data;
/* Note : gcc will optimise the whole section away if
* WIRELESS_SPY is not defined... - Jean II */
if (SPY_NUMBER(priv)) {
- orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN,
+ orinoco_spy_gather(dev, skb_mac_header(skb) + ETH_ALEN,
desc->signal, desc->silence);
}
}
/* Copy the 802.11 header to the skb */
memcpy(skb_put(skb, hdrlen), &(desc->frame_ctl), hdrlen);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
/* If any, copy the data from the card to the skb */
if (datalen > 0) {
memcpy(hdr->h_source, desc.addr2, ETH_ALEN);
dev->last_rx = jiffies;
- skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_NONE;
if (fc & IEEE80211_FCTL_TODS)
printk("islpci_eth_transmit:wds_mac\n");
#endif
memmove(skb->data + 6, src, skb->len);
- memcpy(skb->data, wds_mac, 6);
+ skb_copy_to_linear_data(skb, wds_mac, 6);
} else {
memmove(skb->data, src, skb->len);
}
skb_put(newskb, init_wds ? skb->len + 6 : skb->len);
if (init_wds) {
- memcpy(newskb->data + 6, skb->data, skb->len);
- memcpy(newskb->data, wds_mac, 6);
+ skb_copy_from_linear_data(skb,
+ newskb->data + 6,
+ skb->len);
+ skb_copy_to_linear_data(newskb, wds_mac, 6);
#ifdef ISLPCI_ETH_DEBUG
printk("islpci_eth_transmit:wds_mac\n");
#endif
} else
- memcpy(newskb->data, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, newskb->data,
+ skb->len);
#if VERBOSE > SHOW_ERROR_MESSAGES
DEBUG(SHOW_TRACING, "memcpy %p %p %i wds %i\n",
skb_pull(*skb, sizeof (struct rfmon_header));
(*skb)->protocol = htons(ETH_P_802_2);
- (*skb)->mac.raw = (*skb)->data;
+ skb_reset_mac_header(*skb);
(*skb)->pkt_type = PACKET_OTHERHOST;
return 0;
DEBUG(SHOW_BUFFER_CONTENTS, "\nrx %p ", skb->data);
display_buffer((char *) skb->data, skb->len);
#endif
-
- /* do some additional sk_buff and network layer parameters */
- skb->dev = ndev;
-
/* take care of monitor mode and spy monitoring. */
if (unlikely(priv->iw_mode == IW_MODE_MONITOR))
discard = islpci_monitor_rx(priv, &skb);
/* Update spy records */
wireless_spy_update(ndev, annex->addr2, &wstats);
- memcpy(skb->data + sizeof (struct rfmon_header),
- skb->data, 2 * ETH_ALEN);
+ skb_copy_from_linear_data(skb,
+ (skb->data +
+ sizeof(struct rfmon_header)),
+ 2 * ETH_ALEN);
skb_pull(skb, sizeof (struct rfmon_header));
}
skb->protocol = eth_type_trans(skb, ndev);
return;
}
skb_reserve( skb, 2); /* Align IP on 16 byte (TBD check this)*/
- skb->dev = dev;
DEBUG(4,"ray_cs rx_data total_len = %x, rx_len = %x\n",total_len,rx_len);
rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
/* Get source address */
#ifdef WIRELESS_SPY
- memcpy(linksrcaddr, ((struct mac_header *)skb->data)->addr_2, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, offsetof(struct mac_header, addr_2),
+ linksrcaddr, ETH_ALEN);
#endif
/* Now, deal with encapsulation/translation/sniffer */
if (!sniffer) {
packetlen);
skb->dev = get_strip_dev(strip_info);
skb->protocol = header->protocol;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
/* Having put a fake header on the front of the sk_buff for the */
/* benefit of tools like tcpdump, skb_pull now 'consumes' that */
return;
}
- skb->dev = dev;
-
/* Copy the packet to the buffer. */
obram_read(ioaddr, buf_off, skb_put(skb, sksize), sksize);
skb->protocol = eth_type_trans(skb, dev);
#ifdef DEBUG_RX_INFO
- wv_packet_info(skb->mac.raw, sksize, dev->name, "wv_packet_read");
+ wv_packet_info(skb_mac_header(skb), sksize, dev->name,
+ "wv_packet_read");
#endif /* DEBUG_RX_INFO */
/* Statistics-gathering and associated stuff.
/* Spying stuff */
#ifdef IW_WIRELESS_SPY
- wl_spy_gather(dev, skb->mac.raw + WAVELAN_ADDR_SIZE,
+ wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE,
stats);
#endif /* IW_WIRELESS_SPY */
#ifdef HISTOGRAM
* need to pad. Jean II */
if (skb->len < ETH_ZLEN) {
memset(data, 0, ETH_ZLEN);
- memcpy(data, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, data, skb->len);
/* Write packet on the card */
if(wv_packet_write(dev, data, ETH_ZLEN))
return 1; /* We failed */
return;
}
- skb->dev = dev;
-
skb_reserve(skb, 2);
fd_p = read_ringbuf(dev, fd_p, (char *) skb_put(skb, sksize), sksize);
skb->protocol = eth_type_trans(skb, dev);
#ifdef DEBUG_RX_INFO
- wv_packet_info(skb->mac.raw, sksize, dev->name, "wv_packet_read");
+ wv_packet_info(skb_mac_header(skb), sksize, dev->name, "wv_packet_read");
#endif /* DEBUG_RX_INFO */
/* Statistics gathering & stuff associated.
#endif /* WAVELAN_ROAMING */
#ifdef WIRELESS_SPY
- wl_spy_gather(dev, skb->mac.raw + WAVELAN_ADDR_SIZE, stats);
+ wl_spy_gather(dev, skb_mac_header(skb) + WAVELAN_ADDR_SIZE, stats);
#endif /* WIRELESS_SPY */
#ifdef HISTOGRAM
wl_his_gather(dev, stats);
memcpy(skb_put(skb, 6), &data[datalen-8], 6);
memcpy(skb_put(skb, 2), &data[datalen-24], 2);
memcpy(skb_put(skb, len), data, len);
- skb->dev = zd->dev;
skb->dev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, zd->dev);
zd->stats.rx_packets++;
memcpy(skb_put(skb, 2), &data[6], 2);
memcpy(skb_put(skb, len), data+8, len);
}
- skb->dev = zd->dev;
skb->dev->last_rx = jiffies;
skb->protocol = eth_type_trans(skb, zd->dev);
zd->stats.rx_packets++;
txbuf[4] = 0x00;
txbuf[5] = 0x00;
- memcpy(txbuf+6, skb->data+12, skb->len-12);
+ skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
if (pad)
txbuf[skb->len-12+6]=0;
- memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
+ skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
*(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
txbuf[txbuflen-1] = 0;
config ZD1211RW
tristate "ZyDAS ZD1211/ZD1211B USB-wireless support"
- depends on USB && IEEE80211 && IEEE80211_SOFTMAC && NET_RADIO && EXPERIMENTAL
+ depends on USB && IEEE80211_SOFTMAC && WLAN_80211 && EXPERIMENTAL
+ select WIRELESS_EXT
select FW_LOADER
---help---
This is an experimental driver for the ZyDAS ZD1211/ZD1211B wireless
{ USB_DEVICE(0x0471, 0x1236), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x13b1, 0x0024), .driver_info = DEVICE_ZD1211B },
{ USB_DEVICE(0x0586, 0x340f), .driver_info = DEVICE_ZD1211B },
+ { USB_DEVICE(0x0baf, 0x0121), .driver_info = DEVICE_ZD1211B },
/* "Driverless" devices that need ejecting */
{ USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER },
{}
skb = dev_alloc_skb(pkt_len + 2);
if (skb == NULL)
break;
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align the IP header */
eth_copy_and_sum(skb, rx_skb->data, pkt_len, 0);
skb_put(skb, pkt_len);
znet->stats.rx_dropped++;
break;
}
- skb->dev = dev;
if (&znet->rx_cur[(pkt_len+1)>>1] > znet->rx_end) {
int semi_cnt = (znet->rx_end - znet->rx_cur)<<1;
continue;
if (LOOPBACK(in_dev->ifa_list->ifa_local))
continue;
- if (!dev->get_stats)
- continue;
stats = dev->get_stats(dev);
+ if (!stats)
+ continue;
rx_total += stats->rx_packets;
tx_total += stats->tx_packets;
}
if (!(value_tcr & P_TCR_BUSY))
bits |= PARPORT_STATUS_BUSY;
- dprintk((KERN_DEBUG "tcr 0x%x ir 0x%x\n", regs->p_tcr, regs->p_ir));
+ dprintk((KERN_DEBUG "tcr 0x%x ir 0x%x\n", value_tcr, value_ir));
dprintk((KERN_DEBUG "read status 0x%x\n", bits));
return bits;
}
if (value_or & P_OR_SLCT_IN)
bits |= PARPORT_CONTROL_SELECT;
- dprintk((KERN_DEBUG "tcr 0x%x or 0x%x\n", regs->p_tcr, regs->p_or));
+ dprintk((KERN_DEBUG "tcr 0x%x or 0x%x\n", value_tcr, value_or));
dprintk((KERN_DEBUG "read control 0x%x\n", bits));
return bits;
}
unsigned char value_tcr = sbus_readb(®s->p_tcr);
unsigned char value_or = sbus_readb(®s->p_or);
- dprintk((KERN_DEBUG "frob1: tcr 0x%x or 0x%x\n", regs->p_tcr, regs->p_or));
+ dprintk((KERN_DEBUG "frob1: tcr 0x%x or 0x%x\n",
+ value_tcr, value_or));
if (mask & PARPORT_CONTROL_STROBE) {
if (val & PARPORT_CONTROL_STROBE) {
value_tcr &= ~P_TCR_DS;
sbus_writeb(value_or, ®s->p_or);
sbus_writeb(value_tcr, ®s->p_tcr);
- dprintk((KERN_DEBUG "frob2: tcr 0x%x or 0x%x\n", regs->p_tcr, regs->p_or));
+ dprintk((KERN_DEBUG "frob2: tcr 0x%x or 0x%x\n",
+ value_tcr, value_or));
return parport_sunbpp_read_control(p);
}
dev->irq = irq;
}
-static void change_legacy_io_resource(struct pci_dev * dev, unsigned index,
- unsigned start, unsigned end)
-{
- unsigned base = start & PCI_BASE_ADDRESS_IO_MASK;
- unsigned len = (end | ~PCI_BASE_ADDRESS_IO_MASK) - base + 1;
-
- /*
- * Some X versions get confused when the BARs reported through
- * /sys or /proc differ from those seen in config space, thus
- * try to update the config space values, too.
- */
- if (!(pci_resource_flags(dev, index) & IORESOURCE_IO))
- printk(KERN_WARNING "%s: cannot adjust BAR%u (not I/O)\n",
- pci_name(dev), index);
- else if (pci_resource_len(dev, index) != len)
- printk(KERN_WARNING "%s: cannot adjust BAR%u (size %04X)\n",
- pci_name(dev), index, (unsigned)pci_resource_len(dev, index));
- else {
- printk(KERN_INFO "%s: trying to change BAR%u from %04X to %04X\n",
- pci_name(dev), index,
- (unsigned)pci_resource_start(dev, index), base);
- pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + index * 4, base);
- }
- pci_resource_start(dev, index) = start;
- pci_resource_end(dev, index) = end;
- pci_resource_flags(dev, index) =
- IORESOURCE_IO | IORESOURCE_PCI_FIXED | PCI_BASE_ADDRESS_SPACE_IO;
-}
+#define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED)
/**
* pci_setup_device - fill in class and map information of a device
u8 progif;
pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
if ((progif & 1) == 0) {
- change_legacy_io_resource(dev, 0, 0x1F0, 0x1F7);
- change_legacy_io_resource(dev, 1, 0x3F6, 0x3F6);
+ dev->resource[0].start = 0x1F0;
+ dev->resource[0].end = 0x1F7;
+ dev->resource[0].flags = LEGACY_IO_RESOURCE;
+ dev->resource[1].start = 0x3F6;
+ dev->resource[1].end = 0x3F6;
+ dev->resource[1].flags = LEGACY_IO_RESOURCE;
}
if ((progif & 4) == 0) {
- change_legacy_io_resource(dev, 2, 0x170, 0x177);
- change_legacy_io_resource(dev, 3, 0x376, 0x376);
+ dev->resource[2].start = 0x170;
+ dev->resource[2].end = 0x177;
+ dev->resource[2].flags = LEGACY_IO_RESOURCE;
+ dev->resource[3].start = 0x376;
+ dev->resource[3].end = 0x376;
+ dev->resource[3].flags = LEGACY_IO_RESOURCE;
}
}
break;
if (device->state == device->target)
wake_up(&dasd_init_waitq);
+
+ /* let user-space know that the device status changed */
+ kobject_uevent(&device->cdev->dev.kobj, KOBJ_CHANGE);
}
/*
#include <asm/debug.h>
#include <asm/uaccess.h>
+#include <asm/ipl.h>
/* This is ugly... */
#define PRINTK_HEADER "dasd_devmap:"
__setup ("dasd=", dasd_call_setup);
#endif /* #ifndef MODULE */
+#define DASD_IPLDEV "ipldev"
+
/*
* Read a device busid/devno from a string.
*/
{
int val, old_style;
+ /* Interpret ipldev busid */
+ if (strncmp(DASD_IPLDEV, *str, strlen(DASD_IPLDEV)) == 0) {
+ if (ipl_info.type != IPL_TYPE_CCW) {
+ MESSAGE(KERN_ERR, "%s", "ipl device is not a ccw "
+ "device");
+ return -EINVAL;
+ }
+ *id0 = 0;
+ *id1 = ipl_info.data.ccw.dev_id.ssid;
+ *devno = ipl_info.data.ccw.dev_id.devno;
+ *str += strlen(DASD_IPLDEV);
+
+ return 0;
+ }
/* check for leading '0x' */
old_style = 0;
if ((*str)[0] == '0' && (*str)[1] == 'x') {
static DEVICE_ATTR(discipline, 0444, dasd_discipline_show, NULL);
+static ssize_t
+dasd_device_status_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct dasd_device *device;
+ ssize_t len;
+
+ device = dasd_device_from_cdev(to_ccwdev(dev));
+ if (!IS_ERR(device)) {
+ switch (device->state) {
+ case DASD_STATE_NEW:
+ len = snprintf(buf, PAGE_SIZE, "new\n");
+ break;
+ case DASD_STATE_KNOWN:
+ len = snprintf(buf, PAGE_SIZE, "detected\n");
+ break;
+ case DASD_STATE_BASIC:
+ len = snprintf(buf, PAGE_SIZE, "basic\n");
+ break;
+ case DASD_STATE_UNFMT:
+ len = snprintf(buf, PAGE_SIZE, "unformatted\n");
+ break;
+ case DASD_STATE_READY:
+ len = snprintf(buf, PAGE_SIZE, "ready\n");
+ break;
+ case DASD_STATE_ONLINE:
+ len = snprintf(buf, PAGE_SIZE, "online\n");
+ break;
+ default:
+ len = snprintf(buf, PAGE_SIZE, "no stat\n");
+ break;
+ }
+ dasd_put_device(device);
+ } else
+ len = snprintf(buf, PAGE_SIZE, "unknown\n");
+ return len;
+}
+
+static DEVICE_ATTR(status, 0444, dasd_device_status_show, NULL);
+
static ssize_t
dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf)
{
static struct attribute * dasd_attrs[] = {
&dev_attr_readonly.attr,
&dev_attr_discipline.attr,
+ &dev_attr_status.attr,
&dev_attr_alias.attr,
&dev_attr_vendor.attr,
&dev_attr_uid.attr,
#
obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \
- sclp_info.o
+ sclp_info.o sclp_config.o sclp_chp.o
obj-$(CONFIG_TN3270) += raw3270.o
obj-$(CONFIG_TN3270_CONSOLE) += con3270.o
obj-$(CONFIG_S390_TAPE_3590) += tape_3590.o
obj-$(CONFIG_MONREADER) += monreader.o
obj-$(CONFIG_MONWRITER) += monwriter.o
+
+zcore_mod-objs := sclp_sdias.o zcore.o
+obj-$(CONFIG_ZFCPDUMP) += zcore_mod.o
spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
}
-static int __init
-con3215_consetup(struct console *co, char *options)
-{
- return 0;
-}
-
/*
* The console structure for the 3215 console
*/
.write = con3215_write,
.device = con3215_device,
.unblank = con3215_unblank,
- .setup = con3215_consetup,
.flags = CON_PRINTBUFFER,
};
spin_unlock_irqrestore(&cp->view.lock, flags);
}
-static int __init
-con3270_consetup(struct console *co, char *options)
-{
- return 0;
-}
-
/*
* The console structure for the 3270 console
*/
.write = con3270_write,
.device = con3270_device,
.unblank = con3270_unblank,
- .setup = con3270_consetup,
.flags = CON_PRINTBUFFER,
};
#include <linux/timer.h>
#include <linux/reboot.h>
#include <linux/jiffies.h>
+#include <linux/init.h>
#include <asm/types.h>
#include <asm/s390_ext.h>
}
static struct sclp_register sclp_state_change_event = {
- .receive_mask = EvTyp_StateChange_Mask,
+ .receive_mask = EVTYP_STATECHANGE_MASK,
.receiver_fn = sclp_state_change_cb
};
sclp_init_mask(1);
return 0;
}
+
+static __init int sclp_initcall(void)
+{
+ return sclp_init();
+}
+
+arch_initcall(sclp_initcall);
#define MAX_KMEM_PAGES (sizeof(unsigned long) << 3)
#define MAX_CONSOLE_PAGES 4
-#define EvTyp_OpCmd 0x01
-#define EvTyp_Msg 0x02
-#define EvTyp_StateChange 0x08
-#define EvTyp_PMsgCmd 0x09
-#define EvTyp_CntlProgOpCmd 0x20
-#define EvTyp_CntlProgIdent 0x0B
-#define EvTyp_SigQuiesce 0x1D
-#define EvTyp_VT220Msg 0x1A
-
-#define EvTyp_OpCmd_Mask 0x80000000
-#define EvTyp_Msg_Mask 0x40000000
-#define EvTyp_StateChange_Mask 0x01000000
-#define EvTyp_PMsgCmd_Mask 0x00800000
-#define EvTyp_CtlProgOpCmd_Mask 0x00000001
-#define EvTyp_CtlProgIdent_Mask 0x00200000
-#define EvTyp_SigQuiesce_Mask 0x00000008
-#define EvTyp_VT220Msg_Mask 0x00000040
-
-#define GnrlMsgFlgs_DOM 0x8000
-#define GnrlMsgFlgs_SndAlrm 0x4000
-#define GnrlMsgFlgs_HoldMsg 0x2000
-
-#define LnTpFlgs_CntlText 0x8000
-#define LnTpFlgs_LabelText 0x4000
-#define LnTpFlgs_DataText 0x2000
-#define LnTpFlgs_EndText 0x1000
-#define LnTpFlgs_PromptText 0x0800
+#define EVTYP_OPCMD 0x01
+#define EVTYP_MSG 0x02
+#define EVTYP_STATECHANGE 0x08
+#define EVTYP_PMSGCMD 0x09
+#define EVTYP_CNTLPROGOPCMD 0x20
+#define EVTYP_CNTLPROGIDENT 0x0B
+#define EVTYP_SIGQUIESCE 0x1D
+#define EVTYP_VT220MSG 0x1A
+#define EVTYP_CONFMGMDATA 0x04
+#define EVTYP_SDIAS 0x1C
+
+#define EVTYP_OPCMD_MASK 0x80000000
+#define EVTYP_MSG_MASK 0x40000000
+#define EVTYP_STATECHANGE_MASK 0x01000000
+#define EVTYP_PMSGCMD_MASK 0x00800000
+#define EVTYP_CTLPROGOPCMD_MASK 0x00000001
+#define EVTYP_CTLPROGIDENT_MASK 0x00200000
+#define EVTYP_SIGQUIESCE_MASK 0x00000008
+#define EVTYP_VT220MSG_MASK 0x00000040
+#define EVTYP_CONFMGMDATA_MASK 0x10000000
+#define EVTYP_SDIAS_MASK 0x00000010
+
+#define GNRLMSGFLGS_DOM 0x8000
+#define GNRLMSGFLGS_SNDALRM 0x4000
+#define GNRLMSGFLGS_HOLDMSG 0x2000
+
+#define LNTPFLGS_CNTLTEXT 0x8000
+#define LNTPFLGS_LABELTEXT 0x4000
+#define LNTPFLGS_DATATEXT 0x2000
+#define LNTPFLGS_ENDTEXT 0x1000
+#define LNTPFLGS_PROMPTTEXT 0x0800
typedef unsigned int sclp_cmdw_t;
#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001
#define GDS_ID_MDSMU 0x1310
-#define GDS_ID_MDSRouteInfo 0x1311
-#define GDS_ID_AgUnWrkCorr 0x1549
-#define GDS_ID_SNACondReport 0x1532
+#define GDS_ID_MDSROUTEINFO 0x1311
+#define GDS_ID_AGUNWRKCORR 0x1549
+#define GDS_ID_SNACONDREPORT 0x1532
#define GDS_ID_CPMSU 0x1212
-#define GDS_ID_RoutTargInstr 0x154D
-#define GDS_ID_OpReq 0x8070
-#define GDS_ID_TextCmd 0x1320
+#define GDS_ID_ROUTTARGINSTR 0x154D
+#define GDS_ID_OPREQ 0x8070
+#define GDS_ID_TEXTCMD 0x1320
-#define GDS_KEY_SelfDefTextMsg 0x31
+#define GDS_KEY_SELFDEFTEXTMSG 0x31
typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */
--- /dev/null
+/*
+ * drivers/s390/char/sclp_chp.c
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#include <linux/types.h>
+#include <linux/gfp.h>
+#include <linux/errno.h>
+#include <linux/completion.h>
+#include <asm/sclp.h>
+#include <asm/chpid.h>
+
+#include "sclp.h"
+
+#define TAG "sclp_chp: "
+
+#define SCLP_CMDW_CONFIGURE_CHANNEL_PATH 0x000f0001
+#define SCLP_CMDW_DECONFIGURE_CHANNEL_PATH 0x000e0001
+#define SCLP_CMDW_READ_CHANNEL_PATH_INFORMATION 0x00030001
+
+static inline sclp_cmdw_t get_configure_cmdw(struct chp_id chpid)
+{
+ return SCLP_CMDW_CONFIGURE_CHANNEL_PATH | chpid.id << 8;
+}
+
+static inline sclp_cmdw_t get_deconfigure_cmdw(struct chp_id chpid)
+{
+ return SCLP_CMDW_DECONFIGURE_CHANNEL_PATH | chpid.id << 8;
+}
+
+static void chp_callback(struct sclp_req *req, void *data)
+{
+ struct completion *completion = data;
+
+ complete(completion);
+}
+
+struct chp_cfg_sccb {
+ struct sccb_header header;
+ u8 ccm;
+ u8 reserved[6];
+ u8 cssid;
+} __attribute__((packed));
+
+struct chp_cfg_data {
+ struct chp_cfg_sccb sccb;
+ struct sclp_req req;
+ struct completion completion;
+} __attribute__((packed));
+
+static int do_configure(sclp_cmdw_t cmd)
+{
+ struct chp_cfg_data *data;
+ int rc;
+
+ /* Prepare sccb. */
+ data = (struct chp_cfg_data *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!data)
+ return -ENOMEM;
+ data->sccb.header.length = sizeof(struct chp_cfg_sccb);
+ data->req.command = cmd;
+ data->req.sccb = &(data->sccb);
+ data->req.status = SCLP_REQ_FILLED;
+ data->req.callback = chp_callback;
+ data->req.callback_data = &(data->completion);
+ init_completion(&data->completion);
+
+ /* Perform sclp request. */
+ rc = sclp_add_request(&(data->req));
+ if (rc)
+ goto out;
+ wait_for_completion(&data->completion);
+
+ /* Check response .*/
+ if (data->req.status != SCLP_REQ_DONE) {
+ printk(KERN_WARNING TAG "configure channel-path request failed "
+ "(status=0x%02x)\n", data->req.status);
+ rc = -EIO;
+ goto out;
+ }
+ switch (data->sccb.header.response_code) {
+ case 0x0020:
+ case 0x0120:
+ case 0x0440:
+ case 0x0450:
+ break;
+ default:
+ printk(KERN_WARNING TAG "configure channel-path failed "
+ "(cmd=0x%08x, response=0x%04x)\n", cmd,
+ data->sccb.header.response_code);
+ rc = -EIO;
+ break;
+ }
+out:
+ free_page((unsigned long) data);
+
+ return rc;
+}
+
+/**
+ * sclp_chp_configure - perform configure channel-path sclp command
+ * @chpid: channel-path ID
+ *
+ * Perform configure channel-path command sclp command for specified chpid.
+ * Return 0 after command successfully finished, non-zero otherwise.
+ */
+int sclp_chp_configure(struct chp_id chpid)
+{
+ return do_configure(get_configure_cmdw(chpid));
+}
+
+/**
+ * sclp_chp_deconfigure - perform deconfigure channel-path sclp command
+ * @chpid: channel-path ID
+ *
+ * Perform deconfigure channel-path command sclp command for specified chpid
+ * and wait for completion. On success return 0. Return non-zero otherwise.
+ */
+int sclp_chp_deconfigure(struct chp_id chpid)
+{
+ return do_configure(get_deconfigure_cmdw(chpid));
+}
+
+struct chp_info_sccb {
+ struct sccb_header header;
+ u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
+ u8 standby[SCLP_CHP_INFO_MASK_SIZE];
+ u8 configured[SCLP_CHP_INFO_MASK_SIZE];
+ u8 ccm;
+ u8 reserved[6];
+ u8 cssid;
+} __attribute__((packed));
+
+struct chp_info_data {
+ struct chp_info_sccb sccb;
+ struct sclp_req req;
+ struct completion completion;
+} __attribute__((packed));
+
+/**
+ * sclp_chp_read_info - perform read channel-path information sclp command
+ * @info: resulting channel-path information data
+ *
+ * Perform read channel-path information sclp command and wait for completion.
+ * On success, store channel-path information in @info and return 0. Return
+ * non-zero otherwise.
+ */
+int sclp_chp_read_info(struct sclp_chp_info *info)
+{
+ struct chp_info_data *data;
+ int rc;
+
+ /* Prepare sccb. */
+ data = (struct chp_info_data *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!data)
+ return -ENOMEM;
+ data->sccb.header.length = sizeof(struct chp_info_sccb);
+ data->req.command = SCLP_CMDW_READ_CHANNEL_PATH_INFORMATION;
+ data->req.sccb = &(data->sccb);
+ data->req.status = SCLP_REQ_FILLED;
+ data->req.callback = chp_callback;
+ data->req.callback_data = &(data->completion);
+ init_completion(&data->completion);
+
+ /* Perform sclp request. */
+ rc = sclp_add_request(&(data->req));
+ if (rc)
+ goto out;
+ wait_for_completion(&data->completion);
+
+ /* Check response .*/
+ if (data->req.status != SCLP_REQ_DONE) {
+ printk(KERN_WARNING TAG "read channel-path info request failed "
+ "(status=0x%02x)\n", data->req.status);
+ rc = -EIO;
+ goto out;
+ }
+ if (data->sccb.header.response_code != 0x0010) {
+ printk(KERN_WARNING TAG "read channel-path info failed "
+ "(response=0x%04x)\n", data->sccb.header.response_code);
+ rc = -EIO;
+ goto out;
+ }
+ memcpy(info->recognized, data->sccb.recognized,
+ SCLP_CHP_INFO_MASK_SIZE);
+ memcpy(info->standby, data->sccb.standby,
+ SCLP_CHP_INFO_MASK_SIZE);
+ memcpy(info->configured, data->sccb.configured,
+ SCLP_CHP_INFO_MASK_SIZE);
+out:
+ free_page((unsigned long) data);
+
+ return rc;
+}
--- /dev/null
+/*
+ * drivers/s390/char/sclp_config.c
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ */
+
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/cpu.h>
+#include <linux/sysdev.h>
+#include <linux/workqueue.h>
+#include "sclp.h"
+
+#define TAG "sclp_config: "
+
+struct conf_mgm_data {
+ u8 reserved;
+ u8 ev_qualifier;
+} __attribute__((packed));
+
+#define EV_QUAL_CAP_CHANGE 3
+
+static struct work_struct sclp_cpu_capability_work;
+
+static void sclp_cpu_capability_notify(struct work_struct *work)
+{
+ int cpu;
+ struct sys_device *sysdev;
+
+ printk(KERN_WARNING TAG "cpu capability changed.\n");
+ lock_cpu_hotplug();
+ for_each_online_cpu(cpu) {
+ sysdev = get_cpu_sysdev(cpu);
+ kobject_uevent(&sysdev->kobj, KOBJ_CHANGE);
+ }
+ unlock_cpu_hotplug();
+}
+
+static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
+{
+ struct conf_mgm_data *cdata;
+
+ cdata = (struct conf_mgm_data *)(evbuf + 1);
+ if (cdata->ev_qualifier == EV_QUAL_CAP_CHANGE)
+ schedule_work(&sclp_cpu_capability_work);
+}
+
+static struct sclp_register sclp_conf_register =
+{
+ .receive_mask = EVTYP_CONFMGMDATA_MASK,
+ .receiver_fn = sclp_conf_receiver_fn,
+};
+
+static int __init sclp_conf_init(void)
+{
+ int rc;
+
+ INIT_WORK(&sclp_cpu_capability_work, sclp_cpu_capability_notify);
+
+ rc = sclp_register(&sclp_conf_register);
+ if (rc) {
+ printk(KERN_ERR TAG "failed to register (%d).\n", rc);
+ return rc;
+ }
+
+ if (!(sclp_conf_register.sclp_receive_mask & EVTYP_CONFMGMDATA_MASK)) {
+ printk(KERN_WARNING TAG "no configuration management.\n");
+ sclp_unregister(&sclp_conf_register);
+ rc = -ENOSYS;
+ }
+ return rc;
+}
+
+__initcall(sclp_conf_init);
/* Event type structure for write message and write priority message */
static struct sclp_register sclp_cpi_event =
{
- .send_mask = EvTyp_CtlProgIdent_Mask
+ .send_mask = EVTYP_CTLPROGIDENT_MASK
};
MODULE_LICENSE("GPL");
"console.\n");
return -EINVAL;
}
- if (!(sclp_cpi_event.sclp_send_mask & EvTyp_CtlProgIdent_Mask)) {
+ if (!(sclp_cpi_event.sclp_send_mask & EVTYP_CTLPROGIDENT_MASK)) {
printk(KERN_WARNING "cpi: no control program identification "
"support\n");
sclp_unregister(&sclp_cpi_event);
}
static struct sclp_register sclp_quiesce_event = {
- .receive_mask = EvTyp_SigQuiesce_Mask,
+ .receive_mask = EVTYP_SIGQUIESCE_MASK,
.receiver_fn = sclp_quiesce_handler
};
/* Event type structure for write message and write priority message */
static struct sclp_register sclp_rw_event = {
- .send_mask = EvTyp_Msg_Mask | EvTyp_PMsgCmd_Mask
+ .send_mask = EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK
};
/*
memset(sccb, 0, sizeof(struct write_sccb));
sccb->header.length = sizeof(struct write_sccb);
sccb->msg_buf.header.length = sizeof(struct msg_buf);
- sccb->msg_buf.header.type = EvTyp_Msg;
+ sccb->msg_buf.header.type = EVTYP_MSG;
sccb->msg_buf.mdb.header.length = sizeof(struct mdb);
sccb->msg_buf.mdb.header.type = 1;
sccb->msg_buf.mdb.header.tag = 0xD4C4C240; /* ebcdic "MDB " */
memset(mto, 0, sizeof(struct mto));
mto->length = sizeof(struct mto);
mto->type = 4; /* message text object */
- mto->line_type_flags = LnTpFlgs_EndText; /* end text */
+ mto->line_type_flags = LNTPFLGS_ENDTEXT; /* end text */
/* set pointer to first byte after struct mto. */
buffer->current_line = (char *) (mto + 1);
case '\a': /* bell, one for several times */
/* set SCLP sound alarm bit in General Object */
buffer->sccb->msg_buf.mdb.go.general_msg_flags |=
- GnrlMsgFlgs_SndAlrm;
+ GNRLMSGFLGS_SNDALRM;
break;
case '\t': /* horizontal tabulator */
/* check if new mto needs to be created */
return -EIO;
sccb = buffer->sccb;
- if (sclp_rw_event.sclp_send_mask & EvTyp_Msg_Mask)
+ if (sclp_rw_event.sclp_send_mask & EVTYP_MSG_MASK)
/* Use normal write message */
- sccb->msg_buf.header.type = EvTyp_Msg;
- else if (sclp_rw_event.sclp_send_mask & EvTyp_PMsgCmd_Mask)
+ sccb->msg_buf.header.type = EVTYP_MSG;
+ else if (sclp_rw_event.sclp_send_mask & EVTYP_PMSGCMD_MASK)
/* Use write priority message */
- sccb->msg_buf.header.type = EvTyp_PMsgCmd;
+ sccb->msg_buf.header.type = EVTYP_PMSGCMD;
else
return -ENOSYS;
buffer->request.command = SCLP_CMDW_WRITE_EVENT_DATA;
--- /dev/null
+/*
+ * Sclp "store data in absolut storage"
+ *
+ * Copyright IBM Corp. 2003,2007
+ * Author(s): Michael Holzheu
+ */
+
+#include <linux/sched.h>
+#include <asm/sclp.h>
+#include <asm/debug.h>
+#include <asm/ipl.h>
+#include "sclp.h"
+#include "sclp_rw.h"
+
+#define TRACE(x...) debug_sprintf_event(sdias_dbf, 1, x)
+#define ERROR_MSG(x...) printk ( KERN_ALERT "SDIAS: " x )
+
+#define SDIAS_RETRIES 300
+#define SDIAS_SLEEP_TICKS 50
+
+#define EQ_STORE_DATA 0x0
+#define EQ_SIZE 0x1
+#define DI_FCP_DUMP 0x0
+#define ASA_SIZE_32 0x0
+#define ASA_SIZE_64 0x1
+#define EVSTATE_ALL_STORED 0x0
+#define EVSTATE_NO_DATA 0x3
+#define EVSTATE_PART_STORED 0x10
+
+static struct debug_info *sdias_dbf;
+
+static struct sclp_register sclp_sdias_register = {
+ .send_mask = EVTYP_SDIAS_MASK,
+};
+
+struct sdias_evbuf {
+ struct evbuf_header hdr;
+ u8 event_qual;
+ u8 data_id;
+ u64 reserved2;
+ u32 event_id;
+ u16 reserved3;
+ u8 asa_size;
+ u8 event_status;
+ u32 reserved4;
+ u32 blk_cnt;
+ u64 asa;
+ u32 reserved5;
+ u32 fbn;
+ u32 reserved6;
+ u32 lbn;
+ u16 reserved7;
+ u16 dbs;
+} __attribute__((packed));
+
+struct sdias_sccb {
+ struct sccb_header hdr;
+ struct sdias_evbuf evbuf;
+} __attribute__((packed));
+
+static struct sdias_sccb sccb __attribute__((aligned(4096)));
+
+static int sclp_req_done;
+static wait_queue_head_t sdias_wq;
+static DEFINE_MUTEX(sdias_mutex);
+
+static void sdias_callback(struct sclp_req *request, void *data)
+{
+ struct sdias_sccb *sccb;
+
+ sccb = (struct sdias_sccb *) request->sccb;
+ sclp_req_done = 1;
+ wake_up(&sdias_wq); /* Inform caller, that request is complete */
+ TRACE("callback done\n");
+}
+
+static int sdias_sclp_send(struct sclp_req *req)
+{
+ int retries;
+ int rc;
+
+ for (retries = SDIAS_RETRIES; retries; retries--) {
+ sclp_req_done = 0;
+ TRACE("add request\n");
+ rc = sclp_add_request(req);
+ if (rc) {
+ /* not initiated, wait some time and retry */
+ set_current_state(TASK_INTERRUPTIBLE);
+ TRACE("add request failed: rc = %i\n",rc);
+ schedule_timeout(SDIAS_SLEEP_TICKS);
+ continue;
+ }
+ /* initiated, wait for completion of service call */
+ wait_event(sdias_wq, (sclp_req_done == 1));
+ if (req->status == SCLP_REQ_FAILED) {
+ TRACE("sclp request failed\n");
+ rc = -EIO;
+ continue;
+ }
+ TRACE("request done\n");
+ break;
+ }
+ return rc;
+}
+
+/*
+ * Get number of blocks (4K) available in the HSA
+ */
+int sclp_sdias_blk_count(void)
+{
+ struct sclp_req request;
+ int rc;
+
+ mutex_lock(&sdias_mutex);
+
+ memset(&sccb, 0, sizeof(sccb));
+ memset(&request, 0, sizeof(request));
+
+ sccb.hdr.length = sizeof(sccb);
+ sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf);
+ sccb.evbuf.hdr.type = EVTYP_SDIAS;
+ sccb.evbuf.event_qual = EQ_SIZE;
+ sccb.evbuf.data_id = DI_FCP_DUMP;
+ sccb.evbuf.event_id = 4712;
+ sccb.evbuf.dbs = 1;
+
+ request.sccb = &sccb;
+ request.command = SCLP_CMDW_WRITE_EVENT_DATA;
+ request.status = SCLP_REQ_FILLED;
+ request.callback = sdias_callback;
+
+ rc = sdias_sclp_send(&request);
+ if (rc) {
+ ERROR_MSG("sclp_send failed for get_nr_blocks\n");
+ goto out;
+ }
+ if (sccb.hdr.response_code != 0x0020) {
+ TRACE("send failed: %x\n", sccb.hdr.response_code);
+ rc = -EIO;
+ goto out;
+ }
+
+ switch (sccb.evbuf.event_status) {
+ case 0:
+ rc = sccb.evbuf.blk_cnt;
+ break;
+ default:
+ ERROR_MSG("SCLP error: %x\n", sccb.evbuf.event_status);
+ rc = -EIO;
+ goto out;
+ }
+ TRACE("%i blocks\n", rc);
+out:
+ mutex_unlock(&sdias_mutex);
+ return rc;
+}
+
+/*
+ * Copy from HSA to absolute storage (not reentrant):
+ *
+ * @dest : Address of buffer where data should be copied
+ * @start_blk: Start Block (beginning with 1)
+ * @nr_blks : Number of 4K blocks to copy
+ *
+ * Return Value: 0 : Requested 'number' of blocks of data copied
+ * <0: ERROR - negative event status
+ */
+int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
+{
+ struct sclp_req request;
+ int rc;
+
+ mutex_lock(&sdias_mutex);
+
+ memset(&sccb, 0, sizeof(sccb));
+ memset(&request, 0, sizeof(request));
+
+ sccb.hdr.length = sizeof(sccb);
+ sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf);
+ sccb.evbuf.hdr.type = EVTYP_SDIAS;
+ sccb.evbuf.hdr.flags = 0;
+ sccb.evbuf.event_qual = EQ_STORE_DATA;
+ sccb.evbuf.data_id = DI_FCP_DUMP;
+ sccb.evbuf.event_id = 4712;
+#ifdef __s390x__
+ sccb.evbuf.asa_size = ASA_SIZE_64;
+#else
+ sccb.evbuf.asa_size = ASA_SIZE_32;
+#endif
+ sccb.evbuf.event_status = 0;
+ sccb.evbuf.blk_cnt = nr_blks;
+ sccb.evbuf.asa = (unsigned long)dest;
+ sccb.evbuf.fbn = start_blk;
+ sccb.evbuf.lbn = 0;
+ sccb.evbuf.dbs = 1;
+
+ request.sccb = &sccb;
+ request.command = SCLP_CMDW_WRITE_EVENT_DATA;
+ request.status = SCLP_REQ_FILLED;
+ request.callback = sdias_callback;
+
+ rc = sdias_sclp_send(&request);
+ if (rc) {
+ ERROR_MSG("sclp_send failed: %x\n", rc);
+ goto out;
+ }
+ if (sccb.hdr.response_code != 0x0020) {
+ TRACE("copy failed: %x\n", sccb.hdr.response_code);
+ rc = -EIO;
+ goto out;
+ }
+
+ switch (sccb.evbuf.event_status) {
+ case EVSTATE_ALL_STORED:
+ TRACE("all stored\n");
+ case EVSTATE_PART_STORED:
+ TRACE("part stored: %i\n", sccb.evbuf.blk_cnt);
+ break;
+ case EVSTATE_NO_DATA:
+ TRACE("no data\n");
+ default:
+ ERROR_MSG("Error from SCLP while copying hsa. "
+ "Event status = %x\n",
+ sccb.evbuf.event_status);
+ rc = -EIO;
+ }
+out:
+ mutex_unlock(&sdias_mutex);
+ return rc;
+}
+
+int __init sdias_init(void)
+{
+ int rc;
+
+ if (ipl_info.type != IPL_TYPE_FCP_DUMP)
+ return 0;
+ sdias_dbf = debug_register("dump_sdias", 4, 1, 4 * sizeof(long));
+ debug_register_view(sdias_dbf, &debug_sprintf_view);
+ debug_set_level(sdias_dbf, 6);
+ rc = sclp_register(&sclp_sdias_register);
+ if (rc) {
+ ERROR_MSG("sclp register failed\n");
+ return rc;
+ }
+ init_waitqueue_head(&sdias_wq);
+ TRACE("init done\n");
+ return 0;
+}
+
+void __exit sdias_exit(void)
+{
+ debug_unregister(sdias_dbf);
+ sclp_unregister(&sclp_sdias_register);
+}
subvec = start;
while (subvec < end) {
subvec = find_gds_subvector(subvec, end,
- GDS_KEY_SelfDefTextMsg);
+ GDS_KEY_SELFDEFTEXTMSG);
if (!subvec)
break;
sclp_eval_selfdeftextmsg((struct gds_subvector *)(subvec + 1),
vec = start;
while (vec < end) {
- vec = find_gds_vector(vec, end, GDS_ID_TextCmd);
+ vec = find_gds_vector(vec, end, GDS_ID_TEXTCMD);
if (!vec)
break;
sclp_eval_textcmd((struct gds_subvector *)(vec + 1),
static struct sclp_register sclp_input_event =
{
- .receive_mask = EvTyp_OpCmd_Mask | EvTyp_PMsgCmd_Mask,
+ .receive_mask = EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK,
.state_change_fn = sclp_tty_state_change,
.receiver_fn = sclp_tty_receiver
};
/* Registration structure for our interest in SCLP event buffers */
static struct sclp_register sclp_vt220_register = {
- .send_mask = EvTyp_VT220Msg_Mask,
- .receive_mask = EvTyp_VT220Msg_Mask,
+ .send_mask = EVTYP_VT220MSG_MASK,
+ .receive_mask = EVTYP_VT220MSG_MASK,
.state_change_fn = NULL,
.receiver_fn = sclp_vt220_receiver_fn
};
static int
__sclp_vt220_emit(struct sclp_vt220_request *request)
{
- if (!(sclp_vt220_register.sclp_send_mask & EvTyp_VT220Msg_Mask)) {
+ if (!(sclp_vt220_register.sclp_send_mask & EVTYP_VT220MSG_MASK)) {
request->sclp_req.status = SCLP_REQ_FAILED;
return -EIO;
}
sccb->header.length = sizeof(struct sclp_vt220_sccb);
sccb->header.function_code = SCLP_NORMAL_WRITE;
sccb->header.response_code = 0x0000;
- sccb->evbuf.type = EvTyp_VT220Msg;
+ sccb->evbuf.type = EVTYP_VT220MSG;
sccb->evbuf.length = sizeof(struct evbuf_header);
return request;
.recording_name = "EREP",
.minor_num = 0,
.buffer_free = 1,
- .priv_lock = SPIN_LOCK_UNLOCKED,
+ .priv_lock = __SPIN_LOCK_UNLOCKED(sys_ser[0].priv_lock),
.autorecording = 1,
.autopurge = 1,
},
.recording_name = "ACCOUNT",
.minor_num = 1,
.buffer_free = 1,
- .priv_lock = SPIN_LOCK_UNLOCKED,
+ .priv_lock = __SPIN_LOCK_UNLOCKED(sys_ser[1].priv_lock),
.autorecording = 1,
.autopurge = 1,
},
.recording_name = "SYMPTOM",
.minor_num = 2,
.buffer_free = 1,
- .priv_lock = SPIN_LOCK_UNLOCKED,
+ .priv_lock = __SPIN_LOCK_UNLOCKED(sys_ser[2].priv_lock),
.autorecording = 1,
.autopurge = 1,
}
struct vmlogrdr_priv_t * logptr = filp->private_data;
+ iucv_path_sever(logptr->path, NULL);
+ kfree(logptr->path);
+ logptr->path = NULL;
if (logptr->autorecording) {
ret = vmlogrdr_recording(logptr,0,logptr->autopurge);
if (ret)
--- /dev/null
+/*
+ * zcore module to export memory content and register sets for creating system
+ * dumps on SCSI disks (zfcpdump). The "zcore/mem" debugfs file shows the same
+ * dump format as s390 standalone dumps.
+ *
+ * For more information please refer to Documentation/s390/zfcpdump.txt
+ *
+ * Copyright IBM Corp. 2003,2007
+ * Author(s): Michael Holzheu
+ */
+
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/utsname.h>
+#include <linux/debugfs.h>
+#include <asm/ipl.h>
+#include <asm/sclp.h>
+#include <asm/setup.h>
+#include <asm/sigp.h>
+#include <asm/uaccess.h>
+#include <asm/debug.h>
+#include <asm/processor.h>
+#include <asm/irqflags.h>
+
+#define TRACE(x...) debug_sprintf_event(zcore_dbf, 1, x)
+#define MSG(x...) printk( KERN_ALERT x )
+#define ERROR_MSG(x...) printk ( KERN_ALERT "DUMP: " x )
+
+#define TO_USER 0
+#define TO_KERNEL 1
+
+enum arch_id {
+ ARCH_S390 = 0,
+ ARCH_S390X = 1,
+};
+
+/* dump system info */
+
+struct sys_info {
+ enum arch_id arch;
+ unsigned long sa_base;
+ u32 sa_size;
+ int cpu_map[NR_CPUS];
+ unsigned long mem_size;
+ union save_area lc_mask;
+};
+
+static struct sys_info sys_info;
+static struct debug_info *zcore_dbf;
+static int hsa_available;
+static struct dentry *zcore_dir;
+static struct dentry *zcore_file;
+
+/*
+ * Copy memory from HSA to kernel or user memory (not reentrant):
+ *
+ * @dest: Kernel or user buffer where memory should be copied to
+ * @src: Start address within HSA where data should be copied
+ * @count: Size of buffer, which should be copied
+ * @mode: Either TO_KERNEL or TO_USER
+ */
+static int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode)
+{
+ int offs, blk_num;
+ static char buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
+
+ if (count == 0)
+ return 0;
+
+ /* copy first block */
+ offs = 0;
+ if ((src % PAGE_SIZE) != 0) {
+ blk_num = src / PAGE_SIZE + 2;
+ if (sclp_sdias_copy(buf, blk_num, 1)) {
+ TRACE("sclp_sdias_copy() failed\n");
+ return -EIO;
+ }
+ offs = min((PAGE_SIZE - (src % PAGE_SIZE)), count);
+ if (mode == TO_USER) {
+ if (copy_to_user((__force __user void*) dest,
+ buf + (src % PAGE_SIZE), offs))
+ return -EFAULT;
+ } else
+ memcpy(dest, buf + (src % PAGE_SIZE), offs);
+ }
+ if (offs == count)
+ goto out;
+
+ /* copy middle */
+ for (; (offs + PAGE_SIZE) <= count; offs += PAGE_SIZE) {
+ blk_num = (src + offs) / PAGE_SIZE + 2;
+ if (sclp_sdias_copy(buf, blk_num, 1)) {
+ TRACE("sclp_sdias_copy() failed\n");
+ return -EIO;
+ }
+ if (mode == TO_USER) {
+ if (copy_to_user((__force __user void*) dest + offs,
+ buf, PAGE_SIZE))
+ return -EFAULT;
+ } else
+ memcpy(dest + offs, buf, PAGE_SIZE);
+ }
+ if (offs == count)
+ goto out;
+
+ /* copy last block */
+ blk_num = (src + offs) / PAGE_SIZE + 2;
+ if (sclp_sdias_copy(buf, blk_num, 1)) {
+ TRACE("sclp_sdias_copy() failed\n");
+ return -EIO;
+ }
+ if (mode == TO_USER) {
+ if (copy_to_user((__force __user void*) dest + offs, buf,
+ PAGE_SIZE))
+ return -EFAULT;
+ } else
+ memcpy(dest + offs, buf, count - offs);
+out:
+ return 0;
+}
+
+static int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count)
+{
+ return memcpy_hsa((void __force *) dest, src, count, TO_USER);
+}
+
+static int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count)
+{
+ return memcpy_hsa(dest, src, count, TO_KERNEL);
+}
+
+static int memcpy_real(void *dest, unsigned long src, size_t count)
+{
+ unsigned long flags;
+ int rc = -EFAULT;
+ register unsigned long _dest asm("2") = (unsigned long) dest;
+ register unsigned long _len1 asm("3") = (unsigned long) count;
+ register unsigned long _src asm("4") = src;
+ register unsigned long _len2 asm("5") = (unsigned long) count;
+
+ if (count == 0)
+ return 0;
+ flags = __raw_local_irq_stnsm(0xf8); /* switch to real mode */
+ asm volatile (
+ "0: mvcle %1,%2,0x0\n"
+ "1: jo 0b\n"
+ " lhi %0,0x0\n"
+ "2:\n"
+ EX_TABLE(1b,2b)
+ : "+d" (rc)
+ : "d" (_dest), "d" (_src), "d" (_len1), "d" (_len2)
+ : "cc", "memory");
+ __raw_local_irq_ssm(flags);
+
+ return rc;
+}
+
+static int memcpy_real_user(__user void *dest, unsigned long src, size_t count)
+{
+ static char buf[4096];
+ int offs = 0, size;
+
+ while (offs < count) {
+ size = min(sizeof(buf), count - offs);
+ if (memcpy_real(buf, src + offs, size))
+ return -EFAULT;
+ if (copy_to_user(dest + offs, buf, size))
+ return -EFAULT;
+ offs += size;
+ }
+ return 0;
+}
+
+#ifdef __s390x__
+/*
+ * Convert s390x (64 bit) cpu info to s390 (32 bit) cpu info
+ */
+static void __init s390x_to_s390_regs(union save_area *out, union save_area *in,
+ int cpu)
+{
+ int i;
+
+ for (i = 0; i < 16; i++) {
+ out->s390.gp_regs[i] = in->s390x.gp_regs[i] & 0x00000000ffffffff;
+ out->s390.acc_regs[i] = in->s390x.acc_regs[i];
+ out->s390.ctrl_regs[i] =
+ in->s390x.ctrl_regs[i] & 0x00000000ffffffff;
+ }
+ /* locore for 31 bit has only space for fpregs 0,2,4,6 */
+ out->s390.fp_regs[0] = in->s390x.fp_regs[0];
+ out->s390.fp_regs[1] = in->s390x.fp_regs[2];
+ out->s390.fp_regs[2] = in->s390x.fp_regs[4];
+ out->s390.fp_regs[3] = in->s390x.fp_regs[6];
+ memcpy(&(out->s390.psw[0]), &(in->s390x.psw[0]), 4);
+ out->s390.psw[1] |= 0x8; /* set bit 12 */
+ memcpy(&(out->s390.psw[4]),&(in->s390x.psw[12]), 4);
+ out->s390.psw[4] |= 0x80; /* set (31bit) addressing bit */
+ out->s390.pref_reg = in->s390x.pref_reg;
+ out->s390.timer = in->s390x.timer;
+ out->s390.clk_cmp = in->s390x.clk_cmp;
+}
+
+static void __init s390x_to_s390_save_areas(void)
+{
+ int i = 1;
+ static union save_area tmp;
+
+ while (zfcpdump_save_areas[i]) {
+ s390x_to_s390_regs(&tmp, zfcpdump_save_areas[i], i);
+ memcpy(zfcpdump_save_areas[i], &tmp, sizeof(tmp));
+ i++;
+ }
+}
+
+#endif /* __s390x__ */
+
+static int __init init_cpu_info(enum arch_id arch)
+{
+ union save_area *sa;
+
+ /* get info for boot cpu from lowcore, stored in the HSA */
+
+ sa = kmalloc(sizeof(*sa), GFP_KERNEL);
+ if (!sa) {
+ ERROR_MSG("kmalloc failed: %s: %i\n",__FUNCTION__, __LINE__);
+ return -ENOMEM;
+ }
+ if (memcpy_hsa_kernel(sa, sys_info.sa_base, sys_info.sa_size) < 0) {
+ ERROR_MSG("could not copy from HSA\n");
+ kfree(sa);
+ return -EIO;
+ }
+ zfcpdump_save_areas[0] = sa;
+
+#ifdef __s390x__
+ /* convert s390x regs to s390, if we are dumping an s390 Linux */
+
+ if (arch == ARCH_S390)
+ s390x_to_s390_save_areas();
+#endif
+
+ return 0;
+}
+
+static DEFINE_MUTEX(zcore_mutex);
+
+#define DUMP_VERSION 0x3
+#define DUMP_MAGIC 0xa8190173618f23fdULL
+#define DUMP_ARCH_S390X 2
+#define DUMP_ARCH_S390 1
+#define HEADER_SIZE 4096
+
+/* dump header dumped according to s390 crash dump format */
+
+struct zcore_header {
+ u64 magic;
+ u32 version;
+ u32 header_size;
+ u32 dump_level;
+ u32 page_size;
+ u64 mem_size;
+ u64 mem_start;
+ u64 mem_end;
+ u32 num_pages;
+ u32 pad1;
+ u64 tod;
+ cpuid_t cpu_id;
+ u32 arch_id;
+ u32 build_arch;
+ char pad2[4016];
+} __attribute__((packed,__aligned__(16)));
+
+static struct zcore_header zcore_header = {
+ .magic = DUMP_MAGIC,
+ .version = DUMP_VERSION,
+ .header_size = 4096,
+ .dump_level = 0,
+ .page_size = PAGE_SIZE,
+ .mem_start = 0,
+#ifdef __s390x__
+ .build_arch = DUMP_ARCH_S390X,
+#else
+ .build_arch = DUMP_ARCH_S390,
+#endif
+};
+
+/*
+ * Copy lowcore info to buffer. Use map in order to copy only register parts.
+ *
+ * @buf: User buffer
+ * @sa: Pointer to save area
+ * @sa_off: Offset in save area to copy
+ * @len: Number of bytes to copy
+ */
+static int copy_lc(void __user *buf, void *sa, int sa_off, int len)
+{
+ int i;
+ char *lc_mask = (char*)&sys_info.lc_mask;
+
+ for (i = 0; i < len; i++) {
+ if (!lc_mask[i + sa_off])
+ continue;
+ if (copy_to_user(buf + i, sa + sa_off + i, 1))
+ return -EFAULT;
+ }
+ return 0;
+}
+
+/*
+ * Copy lowcores info to memory, if necessary
+ *
+ * @buf: User buffer
+ * @addr: Start address of buffer in dump memory
+ * @count: Size of buffer
+ */
+static int zcore_add_lc(char __user *buf, unsigned long start, size_t count)
+{
+ unsigned long end;
+ int i = 0;
+
+ if (count == 0)
+ return 0;
+
+ end = start + count;
+ while (zfcpdump_save_areas[i]) {
+ unsigned long cp_start, cp_end; /* copy range */
+ unsigned long sa_start, sa_end; /* save area range */
+ unsigned long prefix;
+ unsigned long sa_off, len, buf_off;
+
+ if (sys_info.arch == ARCH_S390)
+ prefix = zfcpdump_save_areas[i]->s390.pref_reg;
+ else
+ prefix = zfcpdump_save_areas[i]->s390x.pref_reg;
+
+ sa_start = prefix + sys_info.sa_base;
+ sa_end = prefix + sys_info.sa_base + sys_info.sa_size;
+
+ if ((end < sa_start) || (start > sa_end))
+ goto next;
+ cp_start = max(start, sa_start);
+ cp_end = min(end, sa_end);
+
+ buf_off = cp_start - start;
+ sa_off = cp_start - sa_start;
+ len = cp_end - cp_start;
+
+ TRACE("copy_lc for: %lx\n", start);
+ if (copy_lc(buf + buf_off, zfcpdump_save_areas[i], sa_off, len))
+ return -EFAULT;
+next:
+ i++;
+ }
+ return 0;
+}
+
+/*
+ * Read routine for zcore character device
+ * First 4K are dump header
+ * Next 32MB are HSA Memory
+ * Rest is read from absolute Memory
+ */
+static ssize_t zcore_read(struct file *file, char __user *buf, size_t count,
+ loff_t *ppos)
+{
+ unsigned long mem_start; /* Start address in memory */
+ size_t mem_offs; /* Offset in dump memory */
+ size_t hdr_count; /* Size of header part of output buffer */
+ size_t size;
+ int rc;
+
+ mutex_lock(&zcore_mutex);
+
+ if (*ppos > (sys_info.mem_size + HEADER_SIZE)) {
+ rc = -EINVAL;
+ goto fail;
+ }
+
+ count = min(count, (size_t) (sys_info.mem_size + HEADER_SIZE - *ppos));
+
+ /* Copy dump header */
+ if (*ppos < HEADER_SIZE) {
+ size = min(count, (size_t) (HEADER_SIZE - *ppos));
+ if (copy_to_user(buf, &zcore_header + *ppos, size)) {
+ rc = -EFAULT;
+ goto fail;
+ }
+ hdr_count = size;
+ mem_start = 0;
+ } else {
+ hdr_count = 0;
+ mem_start = *ppos - HEADER_SIZE;
+ }
+
+ mem_offs = 0;
+
+ /* Copy from HSA data */
+ if (*ppos < (ZFCPDUMP_HSA_SIZE + HEADER_SIZE)) {
+ size = min((count - hdr_count), (size_t) (ZFCPDUMP_HSA_SIZE
+ - mem_start));
+ rc = memcpy_hsa_user(buf + hdr_count, mem_start, size);
+ if (rc)
+ goto fail;
+
+ mem_offs += size;
+ }
+
+ /* Copy from real mem */
+ size = count - mem_offs - hdr_count;
+ rc = memcpy_real_user(buf + hdr_count + mem_offs, mem_start + mem_offs,
+ size);
+ if (rc)
+ goto fail;
+
+ /*
+ * Since s390 dump analysis tools like lcrash or crash
+ * expect register sets in the prefix pages of the cpus,
+ * we copy them into the read buffer, if necessary.
+ * buf + hdr_count: Start of memory part of output buffer
+ * mem_start: Start memory address to copy from
+ * count - hdr_count: Size of memory area to copy
+ */
+ if (zcore_add_lc(buf + hdr_count, mem_start, count - hdr_count)) {
+ rc = -EFAULT;
+ goto fail;
+ }
+ *ppos += count;
+fail:
+ mutex_unlock(&zcore_mutex);
+ return (rc < 0) ? rc : count;
+}
+
+static int zcore_open(struct inode *inode, struct file *filp)
+{
+ if (!hsa_available)
+ return -ENODATA;
+ else
+ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
+}
+
+static int zcore_release(struct inode *inode, struct file *filep)
+{
+ diag308(DIAG308_REL_HSA, NULL);
+ hsa_available = 0;
+ return 0;
+}
+
+static loff_t zcore_lseek(struct file *file, loff_t offset, int orig)
+{
+ loff_t rc;
+
+ mutex_lock(&zcore_mutex);
+ switch (orig) {
+ case 0:
+ file->f_pos = offset;
+ rc = file->f_pos;
+ break;
+ case 1:
+ file->f_pos += offset;
+ rc = file->f_pos;
+ break;
+ default:
+ rc = -EINVAL;
+ }
+ mutex_unlock(&zcore_mutex);
+ return rc;
+}
+
+static struct file_operations zcore_fops = {
+ .owner = THIS_MODULE,
+ .llseek = zcore_lseek,
+ .read = zcore_read,
+ .open = zcore_open,
+ .release = zcore_release,
+};
+
+
+static void __init set_s390_lc_mask(union save_area *map)
+{
+ memset(&map->s390.ext_save, 0xff, sizeof(map->s390.ext_save));
+ memset(&map->s390.timer, 0xff, sizeof(map->s390.timer));
+ memset(&map->s390.clk_cmp, 0xff, sizeof(map->s390.clk_cmp));
+ memset(&map->s390.psw, 0xff, sizeof(map->s390.psw));
+ memset(&map->s390.pref_reg, 0xff, sizeof(map->s390.pref_reg));
+ memset(&map->s390.acc_regs, 0xff, sizeof(map->s390.acc_regs));
+ memset(&map->s390.fp_regs, 0xff, sizeof(map->s390.fp_regs));
+ memset(&map->s390.gp_regs, 0xff, sizeof(map->s390.gp_regs));
+ memset(&map->s390.ctrl_regs, 0xff, sizeof(map->s390.ctrl_regs));
+}
+
+static void __init set_s390x_lc_mask(union save_area *map)
+{
+ memset(&map->s390x.fp_regs, 0xff, sizeof(map->s390x.fp_regs));
+ memset(&map->s390x.gp_regs, 0xff, sizeof(map->s390x.gp_regs));
+ memset(&map->s390x.psw, 0xff, sizeof(map->s390x.psw));
+ memset(&map->s390x.pref_reg, 0xff, sizeof(map->s390x.pref_reg));
+ memset(&map->s390x.fp_ctrl_reg, 0xff, sizeof(map->s390x.fp_ctrl_reg));
+ memset(&map->s390x.tod_reg, 0xff, sizeof(map->s390x.tod_reg));
+ memset(&map->s390x.timer, 0xff, sizeof(map->s390x.timer));
+ memset(&map->s390x.clk_cmp, 0xff, sizeof(map->s390x.clk_cmp));
+ memset(&map->s390x.acc_regs, 0xff, sizeof(map->s390x.acc_regs));
+ memset(&map->s390x.ctrl_regs, 0xff, sizeof(map->s390x.ctrl_regs));
+}
+
+/*
+ * Initialize dump globals for a given architecture
+ */
+static int __init sys_info_init(enum arch_id arch)
+{
+ switch (arch) {
+ case ARCH_S390X:
+ MSG("DETECTED 'S390X (64 bit) OS'\n");
+ sys_info.sa_base = SAVE_AREA_BASE_S390X;
+ sys_info.sa_size = sizeof(struct save_area_s390x);
+ set_s390x_lc_mask(&sys_info.lc_mask);
+ break;
+ case ARCH_S390:
+ MSG("DETECTED 'S390 (32 bit) OS'\n");
+ sys_info.sa_base = SAVE_AREA_BASE_S390;
+ sys_info.sa_size = sizeof(struct save_area_s390);
+ set_s390_lc_mask(&sys_info.lc_mask);
+ break;
+ default:
+ ERROR_MSG("unknown architecture 0x%x.\n",arch);
+ return -EINVAL;
+ }
+ sys_info.arch = arch;
+ if (init_cpu_info(arch)) {
+ ERROR_MSG("get cpu info failed\n");
+ return -ENOMEM;
+ }
+ sys_info.mem_size = real_memory_size;
+
+ return 0;
+}
+
+static int __init check_sdias(void)
+{
+ int rc, act_hsa_size;
+
+ rc = sclp_sdias_blk_count();
+ if (rc < 0) {
+ ERROR_MSG("Could not determine HSA size\n");
+ return rc;
+ }
+ act_hsa_size = (rc - 1) * PAGE_SIZE;
+ if (act_hsa_size < ZFCPDUMP_HSA_SIZE) {
+ ERROR_MSG("HSA size too small: %i\n", act_hsa_size);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void __init zcore_header_init(int arch, struct zcore_header *hdr)
+{
+ if (arch == ARCH_S390X)
+ hdr->arch_id = DUMP_ARCH_S390X;
+ else
+ hdr->arch_id = DUMP_ARCH_S390;
+ hdr->mem_size = sys_info.mem_size;
+ hdr->mem_end = sys_info.mem_size;
+ hdr->num_pages = sys_info.mem_size / PAGE_SIZE;
+ hdr->tod = get_clock();
+ get_cpu_id(&hdr->cpu_id);
+}
+
+extern int sdias_init(void);
+
+static int __init zcore_init(void)
+{
+ unsigned char arch;
+ int rc;
+
+ if (ipl_info.type != IPL_TYPE_FCP_DUMP)
+ return -ENODATA;
+
+ zcore_dbf = debug_register("zcore", 4, 1, 4 * sizeof(long));
+ debug_register_view(zcore_dbf, &debug_sprintf_view);
+ debug_set_level(zcore_dbf, 6);
+
+ TRACE("devno: %x\n", ipl_info.data.fcp.dev_id.devno);
+ TRACE("wwpn: %llx\n", (unsigned long long) ipl_info.data.fcp.wwpn);
+ TRACE("lun: %llx\n", (unsigned long long) ipl_info.data.fcp.lun);
+
+ rc = sdias_init();
+ if (rc)
+ goto fail;
+
+ rc = check_sdias();
+ if (rc) {
+ ERROR_MSG("Dump initialization failed\n");
+ goto fail;
+ }
+
+ rc = memcpy_hsa_kernel(&arch, __LC_AR_MODE_ID, 1);
+ if (rc) {
+ ERROR_MSG("sdial memcpy for arch id failed\n");
+ goto fail;
+ }
+
+#ifndef __s390x__
+ if (arch == ARCH_S390X) {
+ ERROR_MSG("32 bit dumper can't dump 64 bit system!\n");
+ rc = -EINVAL;
+ goto fail;
+ }
+#endif
+
+ rc = sys_info_init(arch);
+ if (rc) {
+ ERROR_MSG("arch init failed\n");
+ goto fail;
+ }
+
+ zcore_header_init(arch, &zcore_header);
+
+ zcore_dir = debugfs_create_dir("zcore" , NULL);
+ if (!zcore_dir) {
+ rc = -ENOMEM;
+ goto fail;
+ }
+ zcore_file = debugfs_create_file("mem", S_IRUSR, zcore_dir, NULL,
+ &zcore_fops);
+ if (!zcore_file) {
+ debugfs_remove(zcore_dir);
+ rc = -ENOMEM;
+ goto fail;
+ }
+ hsa_available = 1;
+ return 0;
+
+fail:
+ diag308(DIAG308_REL_HSA, NULL);
+ return rc;
+}
+
+extern void sdias_exit(void);
+
+static void __exit zcore_exit(void)
+{
+ debug_unregister(zcore_dbf);
+ sdias_exit();
+ diag308(DIAG308_REL_HSA, NULL);
+}
+
+MODULE_AUTHOR("Copyright IBM Corp. 2003,2007");
+MODULE_DESCRIPTION("zcore module for zfcpdump support");
+MODULE_LICENSE("GPL");
+
+subsys_initcall(zcore_init);
+module_exit(zcore_exit);
# Makefile for the S/390 common i/o drivers
#
-obj-y += airq.o blacklist.o chsc.o cio.o css.o
+obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o
ccw_device-objs += device.o device_fsm.o device_ops.o
ccw_device-objs += device_id.o device_pgid.o device_status.o
obj-y += ccw_device.o cmf.o
{
struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+ mutex_lock(&gdev->reg_mutex);
__ccwgroup_remove_symlinks(gdev);
device_unregister(dev);
+ mutex_unlock(&gdev->reg_mutex);
}
static ssize_t
return -ENOMEM;
atomic_set(&gdev->onoff, 0);
-
+ mutex_init(&gdev->reg_mutex);
+ mutex_lock(&gdev->reg_mutex);
for (i = 0; i < argc; i++) {
gdev->cdev[i] = get_ccwdev_by_busid(cdrv, argv[i]);
|| gdev->cdev[i]->id.driver_info !=
gdev->cdev[0]->id.driver_info) {
rc = -EINVAL;
- goto free_dev;
+ goto error;
}
/* Don't allow a device to belong to more than one group. */
if (gdev->cdev[i]->dev.driver_data) {
rc = -EINVAL;
- goto free_dev;
+ goto error;
}
gdev->cdev[i]->dev.driver_data = gdev;
}
gdev->cdev[0]->dev.bus_id);
rc = device_register(&gdev->dev);
-
if (rc)
- goto free_dev;
+ goto error;
get_device(&gdev->dev);
rc = device_create_file(&gdev->dev, &dev_attr_ungroup);
rc = __ccwgroup_create_symlinks(gdev);
if (!rc) {
+ mutex_unlock(&gdev->reg_mutex);
put_device(&gdev->dev);
return 0;
}
device_remove_file(&gdev->dev, &dev_attr_ungroup);
device_unregister(&gdev->dev);
error:
- for (i = 0; i < argc; i++)
- if (gdev->cdev[i]) {
- put_device(&gdev->cdev[i]->dev);
- gdev->cdev[i]->dev.driver_data = NULL;
- }
- put_device(&gdev->dev);
- return rc;
-free_dev:
for (i = 0; i < argc; i++)
if (gdev->cdev[i]) {
if (gdev->cdev[i]->dev.driver_data == gdev)
gdev->cdev[i]->dev.driver_data = NULL;
put_device(&gdev->cdev[i]->dev);
}
- kfree(gdev);
+ mutex_unlock(&gdev->reg_mutex);
+ put_device(&gdev->dev);
return rc;
}
get_driver(&cdriver->driver);
while ((dev = driver_find_device(&cdriver->driver, NULL, NULL,
__ccwgroup_match_all))) {
- __ccwgroup_remove_symlinks(to_ccwgroupdev(dev));
+ struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+
+ mutex_lock(&gdev->reg_mutex);
+ __ccwgroup_remove_symlinks(gdev);
device_unregister(dev);
+ mutex_unlock(&gdev->reg_mutex);
put_device(dev);
}
put_driver(&cdriver->driver);
if (cdev->dev.driver_data) {
gdev = (struct ccwgroup_device *)cdev->dev.driver_data;
if (get_device(&gdev->dev)) {
+ mutex_lock(&gdev->reg_mutex);
if (device_is_registered(&gdev->dev))
return gdev;
+ mutex_unlock(&gdev->reg_mutex);
put_device(&gdev->dev);
}
return NULL;
if (gdev) {
__ccwgroup_remove_symlinks(gdev);
device_unregister(&gdev->dev);
+ mutex_unlock(&gdev->reg_mutex);
put_device(&gdev->dev);
}
}
--- /dev/null
+/*
+ * drivers/s390/cio/chp.c
+ *
+ * Copyright IBM Corp. 1999,2007
+ * Author(s): Cornelia Huck (cornelia.huck@de.ibm.com)
+ * Arnd Bergmann (arndb@de.ibm.com)
+ * Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#include <linux/bug.h>
+#include <linux/workqueue.h>
+#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/wait.h>
+#include <linux/mutex.h>
+#include <asm/errno.h>
+#include <asm/chpid.h>
+#include <asm/sclp.h>
+
+#include "cio.h"
+#include "css.h"
+#include "ioasm.h"
+#include "cio_debug.h"
+#include "chp.h"
+
+#define to_channelpath(device) container_of(device, struct channel_path, dev)
+#define CHP_INFO_UPDATE_INTERVAL 1*HZ
+
+enum cfg_task_t {
+ cfg_none,
+ cfg_configure,
+ cfg_deconfigure
+};
+
+/* Map for pending configure tasks. */
+static enum cfg_task_t chp_cfg_task[__MAX_CSSID + 1][__MAX_CHPID + 1];
+static DEFINE_MUTEX(cfg_lock);
+static int cfg_busy;
+
+/* Map for channel-path status. */
+static struct sclp_chp_info chp_info;
+static DEFINE_MUTEX(info_lock);
+
+/* Time after which channel-path status may be outdated. */
+static unsigned long chp_info_expires;
+
+/* Workqueue to perform pending configure tasks. */
+static struct workqueue_struct *chp_wq;
+static struct work_struct cfg_work;
+
+/* Wait queue for configure completion events. */
+static wait_queue_head_t cfg_wait_queue;
+
+/* Return channel_path struct for given chpid. */
+static inline struct channel_path *chpid_to_chp(struct chp_id chpid)
+{
+ return css[chpid.cssid]->chps[chpid.id];
+}
+
+/* Set vary state for given chpid. */
+static void set_chp_logically_online(struct chp_id chpid, int onoff)
+{
+ chpid_to_chp(chpid)->state = onoff;
+}
+
+/* On succes return 0 if channel-path is varied offline, 1 if it is varied
+ * online. Return -ENODEV if channel-path is not registered. */
+int chp_get_status(struct chp_id chpid)
+{
+ return (chpid_to_chp(chpid) ? chpid_to_chp(chpid)->state : -ENODEV);
+}
+
+/**
+ * chp_get_sch_opm - return opm for subchannel
+ * @sch: subchannel
+ *
+ * Calculate and return the operational path mask (opm) based on the chpids
+ * used by the subchannel and the status of the associated channel-paths.
+ */
+u8 chp_get_sch_opm(struct subchannel *sch)
+{
+ struct chp_id chpid;
+ int opm;
+ int i;
+
+ opm = 0;
+ chp_id_init(&chpid);
+ for (i=0; i < 8; i++) {
+ opm <<= 1;
+ chpid.id = sch->schib.pmcw.chpid[i];
+ if (chp_get_status(chpid) != 0)
+ opm |= 1;
+ }
+ return opm;
+}
+
+/**
+ * chp_is_registered - check if a channel-path is registered
+ * @chpid: channel-path ID
+ *
+ * Return non-zero if a channel-path with the given chpid is registered,
+ * zero otherwise.
+ */
+int chp_is_registered(struct chp_id chpid)
+{
+ return chpid_to_chp(chpid) != NULL;
+}
+
+/*
+ * Function: s390_vary_chpid
+ * Varies the specified chpid online or offline
+ */
+static int s390_vary_chpid(struct chp_id chpid, int on)
+{
+ char dbf_text[15];
+ int status;
+
+ sprintf(dbf_text, on?"varyon%x.%02x":"varyoff%x.%02x", chpid.cssid,
+ chpid.id);
+ CIO_TRACE_EVENT( 2, dbf_text);
+
+ status = chp_get_status(chpid);
+ if (status < 0) {
+ printk(KERN_ERR "Can't vary unknown chpid %x.%02x\n",
+ chpid.cssid, chpid.id);
+ return -EINVAL;
+ }
+
+ if (!on && !status) {
+ printk(KERN_ERR "chpid %x.%02x is already offline\n",
+ chpid.cssid, chpid.id);
+ return -EINVAL;
+ }
+
+ set_chp_logically_online(chpid, on);
+ chsc_chp_vary(chpid, on);
+ return 0;
+}
+
+/*
+ * Channel measurement related functions
+ */
+static ssize_t chp_measurement_chars_read(struct kobject *kobj, char *buf,
+ loff_t off, size_t count)
+{
+ struct channel_path *chp;
+ unsigned int size;
+
+ chp = to_channelpath(container_of(kobj, struct device, kobj));
+ if (!chp->cmg_chars)
+ return 0;
+
+ size = sizeof(struct cmg_chars);
+
+ if (off > size)
+ return 0;
+ if (off + count > size)
+ count = size - off;
+ memcpy(buf, chp->cmg_chars + off, count);
+ return count;
+}
+
+static struct bin_attribute chp_measurement_chars_attr = {
+ .attr = {
+ .name = "measurement_chars",
+ .mode = S_IRUSR,
+ .owner = THIS_MODULE,
+ },
+ .size = sizeof(struct cmg_chars),
+ .read = chp_measurement_chars_read,
+};
+
+static void chp_measurement_copy_block(struct cmg_entry *buf,
+ struct channel_subsystem *css,
+ struct chp_id chpid)
+{
+ void *area;
+ struct cmg_entry *entry, reference_buf;
+ int idx;
+
+ if (chpid.id < 128) {
+ area = css->cub_addr1;
+ idx = chpid.id;
+ } else {
+ area = css->cub_addr2;
+ idx = chpid.id - 128;
+ }
+ entry = area + (idx * sizeof(struct cmg_entry));
+ do {
+ memcpy(buf, entry, sizeof(*entry));
+ memcpy(&reference_buf, entry, sizeof(*entry));
+ } while (reference_buf.values[0] != buf->values[0]);
+}
+
+static ssize_t chp_measurement_read(struct kobject *kobj, char *buf,
+ loff_t off, size_t count)
+{
+ struct channel_path *chp;
+ struct channel_subsystem *css;
+ unsigned int size;
+
+ chp = to_channelpath(container_of(kobj, struct device, kobj));
+ css = to_css(chp->dev.parent);
+
+ size = sizeof(struct cmg_entry);
+
+ /* Only allow single reads. */
+ if (off || count < size)
+ return 0;
+ chp_measurement_copy_block((struct cmg_entry *)buf, css, chp->chpid);
+ count = size;
+ return count;
+}
+
+static struct bin_attribute chp_measurement_attr = {
+ .attr = {
+ .name = "measurement",
+ .mode = S_IRUSR,
+ .owner = THIS_MODULE,
+ },
+ .size = sizeof(struct cmg_entry),
+ .read = chp_measurement_read,
+};
+
+void chp_remove_cmg_attr(struct channel_path *chp)
+{
+ device_remove_bin_file(&chp->dev, &chp_measurement_chars_attr);
+ device_remove_bin_file(&chp->dev, &chp_measurement_attr);
+}
+
+int chp_add_cmg_attr(struct channel_path *chp)
+{
+ int ret;
+
+ ret = device_create_bin_file(&chp->dev, &chp_measurement_chars_attr);
+ if (ret)
+ return ret;
+ ret = device_create_bin_file(&chp->dev, &chp_measurement_attr);
+ if (ret)
+ device_remove_bin_file(&chp->dev, &chp_measurement_chars_attr);
+ return ret;
+}
+
+/*
+ * Files for the channel path entries.
+ */
+static ssize_t chp_status_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct channel_path *chp = container_of(dev, struct channel_path, dev);
+
+ if (!chp)
+ return 0;
+ return (chp_get_status(chp->chpid) ? sprintf(buf, "online\n") :
+ sprintf(buf, "offline\n"));
+}
+
+static ssize_t chp_status_write(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct channel_path *cp = container_of(dev, struct channel_path, dev);
+ char cmd[10];
+ int num_args;
+ int error;
+
+ num_args = sscanf(buf, "%5s", cmd);
+ if (!num_args)
+ return count;
+
+ if (!strnicmp(cmd, "on", 2) || !strcmp(cmd, "1"))
+ error = s390_vary_chpid(cp->chpid, 1);
+ else if (!strnicmp(cmd, "off", 3) || !strcmp(cmd, "0"))
+ error = s390_vary_chpid(cp->chpid, 0);
+ else
+ error = -EINVAL;
+
+ return error < 0 ? error : count;
+
+}
+
+static DEVICE_ATTR(status, 0644, chp_status_show, chp_status_write);
+
+static ssize_t chp_configure_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct channel_path *cp;
+ int status;
+
+ cp = container_of(dev, struct channel_path, dev);
+ status = chp_info_get_status(cp->chpid);
+ if (status < 0)
+ return status;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", status);
+}
+
+static int cfg_wait_idle(void);
+
+static ssize_t chp_configure_write(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct channel_path *cp;
+ int val;
+ char delim;
+
+ if (sscanf(buf, "%d %c", &val, &delim) != 1)
+ return -EINVAL;
+ if (val != 0 && val != 1)
+ return -EINVAL;
+ cp = container_of(dev, struct channel_path, dev);
+ chp_cfg_schedule(cp->chpid, val);
+ cfg_wait_idle();
+
+ return count;
+}
+
+static DEVICE_ATTR(configure, 0644, chp_configure_show, chp_configure_write);
+
+static ssize_t chp_type_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct channel_path *chp = container_of(dev, struct channel_path, dev);
+
+ if (!chp)
+ return 0;
+ return sprintf(buf, "%x\n", chp->desc.desc);
+}
+
+static DEVICE_ATTR(type, 0444, chp_type_show, NULL);
+
+static ssize_t chp_cmg_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct channel_path *chp = to_channelpath(dev);
+
+ if (!chp)
+ return 0;
+ if (chp->cmg == -1) /* channel measurements not available */
+ return sprintf(buf, "unknown\n");
+ return sprintf(buf, "%x\n", chp->cmg);
+}
+
+static DEVICE_ATTR(cmg, 0444, chp_cmg_show, NULL);
+
+static ssize_t chp_shared_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct channel_path *chp = to_channelpath(dev);
+
+ if (!chp)
+ return 0;
+ if (chp->shared == -1) /* channel measurements not available */
+ return sprintf(buf, "unknown\n");
+ return sprintf(buf, "%x\n", chp->shared);
+}
+
+static DEVICE_ATTR(shared, 0444, chp_shared_show, NULL);
+
+static struct attribute * chp_attrs[] = {
+ &dev_attr_status.attr,
+ &dev_attr_configure.attr,
+ &dev_attr_type.attr,
+ &dev_attr_cmg.attr,
+ &dev_attr_shared.attr,
+ NULL,
+};
+
+static struct attribute_group chp_attr_group = {
+ .attrs = chp_attrs,
+};
+
+static void chp_release(struct device *dev)
+{
+ struct channel_path *cp;
+
+ cp = container_of(dev, struct channel_path, dev);
+ kfree(cp);
+}
+
+/**
+ * chp_new - register a new channel-path
+ * @chpid - channel-path ID
+ *
+ * Create and register data structure representing new channel-path. Return
+ * zero on success, non-zero otherwise.
+ */
+int chp_new(struct chp_id chpid)
+{
+ struct channel_path *chp;
+ int ret;
+
+ if (chp_is_registered(chpid))
+ return 0;
+ chp = kzalloc(sizeof(struct channel_path), GFP_KERNEL);
+ if (!chp)
+ return -ENOMEM;
+
+ /* fill in status, etc. */
+ chp->chpid = chpid;
+ chp->state = 1;
+ chp->dev.parent = &css[chpid.cssid]->device;
+ chp->dev.release = chp_release;
+ snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp%x.%02x", chpid.cssid,
+ chpid.id);
+
+ /* Obtain channel path description and fill it in. */
+ ret = chsc_determine_channel_path_description(chpid, &chp->desc);
+ if (ret)
+ goto out_free;
+ if ((chp->desc.flags & 0x80) == 0) {
+ ret = -ENODEV;
+ goto out_free;
+ }
+ /* Get channel-measurement characteristics. */
+ if (css_characteristics_avail && css_chsc_characteristics.scmc
+ && css_chsc_characteristics.secm) {
+ ret = chsc_get_channel_measurement_chars(chp);
+ if (ret)
+ goto out_free;
+ } else {
+ static int msg_done;
+
+ if (!msg_done) {
+ printk(KERN_WARNING "cio: Channel measurements not "
+ "available, continuing.\n");
+ msg_done = 1;
+ }
+ chp->cmg = -1;
+ }
+
+ /* make it known to the system */
+ ret = device_register(&chp->dev);
+ if (ret) {
+ printk(KERN_WARNING "%s: could not register %x.%02x\n",
+ __func__, chpid.cssid, chpid.id);
+ goto out_free;
+ }
+ ret = sysfs_create_group(&chp->dev.kobj, &chp_attr_group);
+ if (ret) {
+ device_unregister(&chp->dev);
+ goto out_free;
+ }
+ mutex_lock(&css[chpid.cssid]->mutex);
+ if (css[chpid.cssid]->cm_enabled) {
+ ret = chp_add_cmg_attr(chp);
+ if (ret) {
+ sysfs_remove_group(&chp->dev.kobj, &chp_attr_group);
+ device_unregister(&chp->dev);
+ mutex_unlock(&css[chpid.cssid]->mutex);
+ goto out_free;
+ }
+ }
+ css[chpid.cssid]->chps[chpid.id] = chp;
+ mutex_unlock(&css[chpid.cssid]->mutex);
+ return ret;
+out_free:
+ kfree(chp);
+ return ret;
+}
+
+/**
+ * chp_get_chp_desc - return newly allocated channel-path description
+ * @chpid: channel-path ID
+ *
+ * On success return a newly allocated copy of the channel-path description
+ * data associated with the given channel-path ID. Return %NULL on error.
+ */
+void *chp_get_chp_desc(struct chp_id chpid)
+{
+ struct channel_path *chp;
+ struct channel_path_desc *desc;
+
+ chp = chpid_to_chp(chpid);
+ if (!chp)
+ return NULL;
+ desc = kmalloc(sizeof(struct channel_path_desc), GFP_KERNEL);
+ if (!desc)
+ return NULL;
+ memcpy(desc, &chp->desc, sizeof(struct channel_path_desc));
+ return desc;
+}
+
+/**
+ * chp_process_crw - process channel-path status change
+ * @id: channel-path ID number
+ * @status: non-zero if channel-path has become available, zero otherwise
+ *
+ * Handle channel-report-words indicating that the status of a channel-path
+ * has changed.
+ */
+void chp_process_crw(int id, int status)
+{
+ struct chp_id chpid;
+
+ chp_id_init(&chpid);
+ chpid.id = id;
+ if (status) {
+ if (!chp_is_registered(chpid))
+ chp_new(chpid);
+ chsc_chp_online(chpid);
+ } else
+ chsc_chp_offline(chpid);
+}
+
+static inline int info_bit_num(struct chp_id id)
+{
+ return id.id + id.cssid * (__MAX_CHPID + 1);
+}
+
+/* Force chp_info refresh on next call to info_validate(). */
+static void info_expire(void)
+{
+ mutex_lock(&info_lock);
+ chp_info_expires = jiffies - 1;
+ mutex_unlock(&info_lock);
+}
+
+/* Ensure that chp_info is up-to-date. */
+static int info_update(void)
+{
+ int rc;
+
+ mutex_lock(&info_lock);
+ rc = 0;
+ if (time_after(jiffies, chp_info_expires)) {
+ /* Data is too old, update. */
+ rc = sclp_chp_read_info(&chp_info);
+ chp_info_expires = jiffies + CHP_INFO_UPDATE_INTERVAL ;
+ }
+ mutex_unlock(&info_lock);
+
+ return rc;
+}
+
+/**
+ * chp_info_get_status - retrieve configure status of a channel-path
+ * @chpid: channel-path ID
+ *
+ * On success, return 0 for standby, 1 for configured, 2 for reserved,
+ * 3 for not recognized. Return negative error code on error.
+ */
+int chp_info_get_status(struct chp_id chpid)
+{
+ int rc;
+ int bit;
+
+ rc = info_update();
+ if (rc)
+ return rc;
+
+ bit = info_bit_num(chpid);
+ mutex_lock(&info_lock);
+ if (!chp_test_bit(chp_info.recognized, bit))
+ rc = CHP_STATUS_NOT_RECOGNIZED;
+ else if (chp_test_bit(chp_info.configured, bit))
+ rc = CHP_STATUS_CONFIGURED;
+ else if (chp_test_bit(chp_info.standby, bit))
+ rc = CHP_STATUS_STANDBY;
+ else
+ rc = CHP_STATUS_RESERVED;
+ mutex_unlock(&info_lock);
+
+ return rc;
+}
+
+/* Return configure task for chpid. */
+static enum cfg_task_t cfg_get_task(struct chp_id chpid)
+{
+ return chp_cfg_task[chpid.cssid][chpid.id];
+}
+
+/* Set configure task for chpid. */
+static void cfg_set_task(struct chp_id chpid, enum cfg_task_t cfg)
+{
+ chp_cfg_task[chpid.cssid][chpid.id] = cfg;
+}
+
+/* Perform one configure/deconfigure request. Reschedule work function until
+ * last request. */
+static void cfg_func(struct work_struct *work)
+{
+ struct chp_id chpid;
+ enum cfg_task_t t;
+
+ mutex_lock(&cfg_lock);
+ t = cfg_none;
+ chp_id_for_each(&chpid) {
+ t = cfg_get_task(chpid);
+ if (t != cfg_none) {
+ cfg_set_task(chpid, cfg_none);
+ break;
+ }
+ }
+ mutex_unlock(&cfg_lock);
+
+ switch (t) {
+ case cfg_configure:
+ sclp_chp_configure(chpid);
+ info_expire();
+ chsc_chp_online(chpid);
+ break;
+ case cfg_deconfigure:
+ sclp_chp_deconfigure(chpid);
+ info_expire();
+ chsc_chp_offline(chpid);
+ break;
+ case cfg_none:
+ /* Get updated information after last change. */
+ info_update();
+ mutex_lock(&cfg_lock);
+ cfg_busy = 0;
+ mutex_unlock(&cfg_lock);
+ wake_up_interruptible(&cfg_wait_queue);
+ return;
+ }
+ queue_work(chp_wq, &cfg_work);
+}
+
+/**
+ * chp_cfg_schedule - schedule chpid configuration request
+ * @chpid - channel-path ID
+ * @configure - Non-zero for configure, zero for deconfigure
+ *
+ * Schedule a channel-path configuration/deconfiguration request.
+ */
+void chp_cfg_schedule(struct chp_id chpid, int configure)
+{
+ CIO_MSG_EVENT(2, "chp_cfg_sched%x.%02x=%d\n", chpid.cssid, chpid.id,
+ configure);
+ mutex_lock(&cfg_lock);
+ cfg_set_task(chpid, configure ? cfg_configure : cfg_deconfigure);
+ cfg_busy = 1;
+ mutex_unlock(&cfg_lock);
+ queue_work(chp_wq, &cfg_work);
+}
+
+/**
+ * chp_cfg_cancel_deconfigure - cancel chpid deconfiguration request
+ * @chpid - channel-path ID
+ *
+ * Cancel an active channel-path deconfiguration request if it has not yet
+ * been performed.
+ */
+void chp_cfg_cancel_deconfigure(struct chp_id chpid)
+{
+ CIO_MSG_EVENT(2, "chp_cfg_cancel:%x.%02x\n", chpid.cssid, chpid.id);
+ mutex_lock(&cfg_lock);
+ if (cfg_get_task(chpid) == cfg_deconfigure)
+ cfg_set_task(chpid, cfg_none);
+ mutex_unlock(&cfg_lock);
+}
+
+static int cfg_wait_idle(void)
+{
+ if (wait_event_interruptible(cfg_wait_queue, !cfg_busy))
+ return -ERESTARTSYS;
+ return 0;
+}
+
+static int __init chp_init(void)
+{
+ struct chp_id chpid;
+
+ chp_wq = create_singlethread_workqueue("cio_chp");
+ if (!chp_wq)
+ return -ENOMEM;
+ INIT_WORK(&cfg_work, cfg_func);
+ init_waitqueue_head(&cfg_wait_queue);
+ if (info_update())
+ return 0;
+ /* Register available channel-paths. */
+ chp_id_for_each(&chpid) {
+ if (chp_info_get_status(chpid) != CHP_STATUS_NOT_RECOGNIZED)
+ chp_new(chpid);
+ }
+
+ return 0;
+}
+
+subsys_initcall(chp_init);
--- /dev/null
+/*
+ * drivers/s390/cio/chp.h
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef S390_CHP_H
+#define S390_CHP_H S390_CHP_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <asm/chpid.h>
+#include "chsc.h"
+
+#define CHP_STATUS_STANDBY 0
+#define CHP_STATUS_CONFIGURED 1
+#define CHP_STATUS_RESERVED 2
+#define CHP_STATUS_NOT_RECOGNIZED 3
+
+static inline int chp_test_bit(u8 *bitmap, int num)
+{
+ int byte = num >> 3;
+ int mask = 128 >> (num & 7);
+
+ return (bitmap[byte] & mask) ? 1 : 0;
+}
+
+
+struct channel_path {
+ struct chp_id chpid;
+ int state;
+ struct channel_path_desc desc;
+ /* Channel-measurement related stuff: */
+ int cmg;
+ int shared;
+ void *cmg_chars;
+ struct device dev;
+};
+
+int chp_get_status(struct chp_id chpid);
+u8 chp_get_sch_opm(struct subchannel *sch);
+int chp_is_registered(struct chp_id chpid);
+void *chp_get_chp_desc(struct chp_id chpid);
+void chp_process_crw(int id, int available);
+void chp_remove_cmg_attr(struct channel_path *chp);
+int chp_add_cmg_attr(struct channel_path *chp);
+int chp_new(struct chp_id chpid);
+void chp_cfg_schedule(struct chp_id chpid, int configure);
+void chp_cfg_cancel_deconfigure(struct chp_id chpid);
+int chp_info_get_status(struct chp_id chpid);
+
+#endif /* S390_CHP_H */
#include <linux/device.h>
#include <asm/cio.h>
+#include <asm/chpid.h>
#include "css.h"
#include "cio.h"
#include "cio_debug.h"
#include "ioasm.h"
+#include "chp.h"
#include "chsc.h"
static void *sei_page;
-static int new_channel_path(int chpid);
-
-static inline void
-set_chp_logically_online(int chp, int onoff)
-{
- css[0]->chps[chp]->state = onoff;
-}
-
-static int
-get_chp_status(int chp)
-{
- return (css[0]->chps[chp] ? css[0]->chps[chp]->state : -ENODEV);
-}
-
-void
-chsc_validate_chpids(struct subchannel *sch)
-{
- int mask, chp;
-
- for (chp = 0; chp <= 7; chp++) {
- mask = 0x80 >> chp;
- if (!get_chp_status(sch->schib.pmcw.chpid[chp]))
- /* disable using this path */
- sch->opm &= ~mask;
- }
-}
-
-void
-chpid_is_actually_online(int chp)
-{
- int state;
-
- state = get_chp_status(chp);
- if (state < 0) {
- need_rescan = 1;
- queue_work(slow_path_wq, &slow_path_work);
- } else
- WARN_ON(!state);
-}
+struct chsc_ssd_area {
+ struct chsc_header request;
+ u16 :10;
+ u16 ssid:2;
+ u16 :4;
+ u16 f_sch; /* first subchannel */
+ u16 :16;
+ u16 l_sch; /* last subchannel */
+ u32 :32;
+ struct chsc_header response;
+ u32 :32;
+ u8 sch_valid : 1;
+ u8 dev_valid : 1;
+ u8 st : 3; /* subchannel type */
+ u8 zeroes : 3;
+ u8 unit_addr; /* unit address */
+ u16 devno; /* device number */
+ u8 path_mask;
+ u8 fla_valid_mask;
+ u16 sch; /* subchannel */
+ u8 chpid[8]; /* chpids 0-7 */
+ u16 fla[8]; /* full link addresses 0-7 */
+} __attribute__ ((packed));
-/* FIXME: this is _always_ called for every subchannel. shouldn't we
- * process more than one at a time? */
-static int
-chsc_get_sch_desc_irq(struct subchannel *sch, void *page)
+int chsc_get_ssd_info(struct subchannel_id schid, struct chsc_ssd_info *ssd)
{
- int ccode, j;
-
- struct {
- struct chsc_header request;
- u16 reserved1a:10;
- u16 ssid:2;
- u16 reserved1b:4;
- u16 f_sch; /* first subchannel */
- u16 reserved2;
- u16 l_sch; /* last subchannel */
- u32 reserved3;
- struct chsc_header response;
- u32 reserved4;
- u8 sch_valid : 1;
- u8 dev_valid : 1;
- u8 st : 3; /* subchannel type */
- u8 zeroes : 3;
- u8 unit_addr; /* unit address */
- u16 devno; /* device number */
- u8 path_mask;
- u8 fla_valid_mask;
- u16 sch; /* subchannel */
- u8 chpid[8]; /* chpids 0-7 */
- u16 fla[8]; /* full link addresses 0-7 */
- } __attribute__ ((packed)) *ssd_area;
-
- ssd_area = page;
+ unsigned long page;
+ struct chsc_ssd_area *ssd_area;
+ int ccode;
+ int ret;
+ int i;
+ int mask;
+ page = get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!page)
+ return -ENOMEM;
+ ssd_area = (struct chsc_ssd_area *) page;
ssd_area->request.length = 0x0010;
ssd_area->request.code = 0x0004;
-
- ssd_area->ssid = sch->schid.ssid;
- ssd_area->f_sch = sch->schid.sch_no;
- ssd_area->l_sch = sch->schid.sch_no;
+ ssd_area->ssid = schid.ssid;
+ ssd_area->f_sch = schid.sch_no;
+ ssd_area->l_sch = schid.sch_no;
ccode = chsc(ssd_area);
+ /* Check response. */
if (ccode > 0) {
- pr_debug("chsc returned with ccode = %d\n", ccode);
- return (ccode == 3) ? -ENODEV : -EBUSY;
+ ret = (ccode == 3) ? -ENODEV : -EBUSY;
+ goto out_free;
}
-
- switch (ssd_area->response.code) {
- case 0x0001: /* everything ok */
- break;
- case 0x0002:
- CIO_CRW_EVENT(2, "Invalid command!\n");
- return -EINVAL;
- case 0x0003:
- CIO_CRW_EVENT(2, "Error in chsc request block!\n");
- return -EINVAL;
- case 0x0004:
- CIO_CRW_EVENT(2, "Model does not provide ssd\n");
- return -EOPNOTSUPP;
- default:
- CIO_CRW_EVENT(2, "Unknown CHSC response %d\n",
+ if (ssd_area->response.code != 0x0001) {
+ CIO_MSG_EVENT(2, "chsc: ssd failed for 0.%x.%04x (rc=%04x)\n",
+ schid.ssid, schid.sch_no,
ssd_area->response.code);
- return -EIO;
+ ret = -EIO;
+ goto out_free;
}
-
- /*
- * ssd_area->st stores the type of the detected
- * subchannel, with the following definitions:
- *
- * 0: I/O subchannel: All fields have meaning
- * 1: CHSC subchannel: Only sch_val, st and sch
- * have meaning
- * 2: Message subchannel: All fields except unit_addr
- * have meaning
- * 3: ADM subchannel: Only sch_val, st and sch
- * have meaning
- *
- * Other types are currently undefined.
- */
- if (ssd_area->st > 3) { /* uhm, that looks strange... */
- CIO_CRW_EVENT(0, "Strange subchannel type %d"
- " for sch 0.%x.%04x\n", ssd_area->st,
- sch->schid.ssid, sch->schid.sch_no);
- /*
- * There may have been a new subchannel type defined in the
- * time since this code was written; since we don't know which
- * fields have meaning and what to do with it we just jump out
- */
- return 0;
- } else {
- const char *type[4] = {"I/O", "chsc", "message", "ADM"};
- CIO_CRW_EVENT(6, "ssd: sch 0.%x.%04x is %s subchannel\n",
- sch->schid.ssid, sch->schid.sch_no,
- type[ssd_area->st]);
-
- sch->ssd_info.valid = 1;
- sch->ssd_info.type = ssd_area->st;
+ if (!ssd_area->sch_valid) {
+ ret = -ENODEV;
+ goto out_free;
}
-
- if (ssd_area->st == 0 || ssd_area->st == 2) {
- for (j = 0; j < 8; j++) {
- if (!((0x80 >> j) & ssd_area->path_mask &
- ssd_area->fla_valid_mask))
- continue;
- sch->ssd_info.chpid[j] = ssd_area->chpid[j];
- sch->ssd_info.fla[j] = ssd_area->fla[j];
+ /* Copy data */
+ ret = 0;
+ memset(ssd, 0, sizeof(struct chsc_ssd_info));
+ if ((ssd_area->st != 0) && (ssd_area->st != 2))
+ goto out_free;
+ ssd->path_mask = ssd_area->path_mask;
+ ssd->fla_valid_mask = ssd_area->fla_valid_mask;
+ for (i = 0; i < 8; i++) {
+ mask = 0x80 >> i;
+ if (ssd_area->path_mask & mask) {
+ chp_id_init(&ssd->chpid[i]);
+ ssd->chpid[i].id = ssd_area->chpid[i];
}
+ if (ssd_area->fla_valid_mask & mask)
+ ssd->fla[i] = ssd_area->fla[i];
}
- return 0;
+out_free:
+ free_page(page);
+ return ret;
}
-int
-css_get_ssd_info(struct subchannel *sch)
+static int check_for_io_on_path(struct subchannel *sch, int mask)
{
- int ret;
- void *page;
+ int cc;
- page = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
- if (!page)
- return -ENOMEM;
- spin_lock_irq(sch->lock);
- ret = chsc_get_sch_desc_irq(sch, page);
- if (ret) {
- static int cio_chsc_err_msg;
-
- if (!cio_chsc_err_msg) {
- printk(KERN_ERR
- "chsc_get_sch_descriptions:"
- " Error %d while doing chsc; "
- "processing some machine checks may "
- "not work\n", ret);
- cio_chsc_err_msg = 1;
- }
- }
- spin_unlock_irq(sch->lock);
- free_page((unsigned long)page);
- if (!ret) {
- int j, chpid, mask;
- /* Allocate channel path structures, if needed. */
- for (j = 0; j < 8; j++) {
- mask = 0x80 >> j;
- chpid = sch->ssd_info.chpid[j];
- if ((sch->schib.pmcw.pim & mask) &&
- (get_chp_status(chpid) < 0))
- new_channel_path(chpid);
- }
+ cc = stsch(sch->schid, &sch->schib);
+ if (cc)
+ return 0;
+ if (sch->schib.scsw.actl && sch->schib.pmcw.lpum == mask)
+ return 1;
+ return 0;
+}
+
+static void terminate_internal_io(struct subchannel *sch)
+{
+ if (cio_clear(sch)) {
+ /* Recheck device in case clear failed. */
+ sch->lpm = 0;
+ if (device_trigger_verify(sch) != 0)
+ css_schedule_eval(sch->schid);
+ return;
}
- return ret;
+ /* Request retry of internal operation. */
+ device_set_intretry(sch);
+ /* Call handler. */
+ if (sch->driver && sch->driver->termination)
+ sch->driver->termination(&sch->dev);
}
static int
int j;
int mask;
struct subchannel *sch;
- struct channel_path *chpid;
+ struct chp_id *chpid;
struct schib schib;
sch = to_subchannel(dev);
if (sch->schib.pmcw.pim == 0x80)
goto out_unreg;
- if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&
- (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
- (sch->schib.pmcw.lpum == mask)) {
- int cc;
-
- cc = cio_clear(sch);
- if (cc == -ENODEV)
+ if (check_for_io_on_path(sch, mask)) {
+ if (device_is_online(sch))
+ device_kill_io(sch);
+ else {
+ terminate_internal_io(sch);
+ /* Re-start path verification. */
+ if (sch->driver && sch->driver->verify)
+ sch->driver->verify(&sch->dev);
+ }
+ } else {
+ /* trigger path verification. */
+ if (sch->driver && sch->driver->verify)
+ sch->driver->verify(&sch->dev);
+ else if (sch->lpm == mask)
goto out_unreg;
- /* Request retry of internal operation. */
- device_set_intretry(sch);
- /* Call handler. */
- if (sch->driver && sch->driver->termination)
- sch->driver->termination(&sch->dev);
- goto out_unlock;
}
- /* trigger path verification. */
- if (sch->driver && sch->driver->verify)
- sch->driver->verify(&sch->dev);
- else if (sch->lpm == mask)
- goto out_unreg;
-out_unlock:
spin_unlock_irq(sch->lock);
return 0;
+
out_unreg:
- spin_unlock_irq(sch->lock);
sch->lpm = 0;
- if (css_enqueue_subchannel_slow(sch->schid)) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- }
+ spin_unlock_irq(sch->lock);
+ css_schedule_eval(sch->schid);
return 0;
}
-static void
-s390_set_chpid_offline( __u8 chpid)
+void chsc_chp_offline(struct chp_id chpid)
{
char dbf_txt[15];
- struct device *dev;
- sprintf(dbf_txt, "chpr%x", chpid);
+ sprintf(dbf_txt, "chpr%x.%02x", chpid.cssid, chpid.id);
CIO_TRACE_EVENT(2, dbf_txt);
- if (get_chp_status(chpid) <= 0)
+ if (chp_get_status(chpid) <= 0)
return;
- dev = get_device(&css[0]->chps[chpid]->dev);
- bus_for_each_dev(&css_bus_type, NULL, to_channelpath(dev),
+ bus_for_each_dev(&css_bus_type, NULL, &chpid,
s390_subchannel_remove_chpid);
-
- if (need_rescan || css_slow_subchannels_exist())
- queue_work(slow_path_wq, &slow_path_work);
- put_device(dev);
-}
-
-struct res_acc_data {
- struct channel_path *chp;
- u32 fla_mask;
- u16 fla;
-};
-
-static int
-s390_process_res_acc_sch(struct res_acc_data *res_data, struct subchannel *sch)
-{
- int found;
- int chp;
- int ccode;
-
- found = 0;
- for (chp = 0; chp <= 7; chp++)
- /*
- * check if chpid is in information updated by ssd
- */
- if (sch->ssd_info.valid &&
- sch->ssd_info.chpid[chp] == res_data->chp->id &&
- (sch->ssd_info.fla[chp] & res_data->fla_mask)
- == res_data->fla) {
- found = 1;
- break;
- }
-
- if (found == 0)
- return 0;
-
- /*
- * Do a stsch to update our subchannel structure with the
- * new path information and eventually check for logically
- * offline chpids.
- */
- ccode = stsch(sch->schid, &sch->schib);
- if (ccode > 0)
- return 0;
-
- return 0x80 >> chp;
}
static int
s390_process_res_acc_new_sch(struct subchannel_id schid)
{
struct schib schib;
- int ret;
/*
* We don't know the device yet, but since a path
* may be available now to the device we'll have
*/
if (stsch_err(schid, &schib))
/* We're through */
- return need_rescan ? -EAGAIN : -ENXIO;
+ return -ENXIO;
/* Put it on the slow path. */
- ret = css_enqueue_subchannel_slow(schid);
- if (ret) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- return -EAGAIN;
+ css_schedule_eval(schid);
+ return 0;
+}
+
+struct res_acc_data {
+ struct chp_id chpid;
+ u32 fla_mask;
+ u16 fla;
+};
+
+static int get_res_chpid_mask(struct chsc_ssd_info *ssd,
+ struct res_acc_data *data)
+{
+ int i;
+ int mask;
+
+ for (i = 0; i < 8; i++) {
+ mask = 0x80 >> i;
+ if (!(ssd->path_mask & mask))
+ continue;
+ if (!chp_id_is_equal(&ssd->chpid[i], &data->chpid))
+ continue;
+ if ((ssd->fla_valid_mask & mask) &&
+ ((ssd->fla[i] & data->fla_mask) != data->fla))
+ continue;
+ return mask;
}
return 0;
}
return s390_process_res_acc_new_sch(schid);
spin_lock_irq(sch->lock);
-
- chp_mask = s390_process_res_acc_sch(res_data, sch);
-
- if (chp_mask == 0) {
- spin_unlock_irq(sch->lock);
- put_device(&sch->dev);
- return 0;
- }
+ chp_mask = get_res_chpid_mask(&sch->ssd_info, res_data);
+ if (chp_mask == 0)
+ goto out;
+ if (stsch(sch->schid, &sch->schib))
+ goto out;
old_lpm = sch->lpm;
sch->lpm = ((sch->schib.pmcw.pim &
sch->schib.pmcw.pam &
device_trigger_reprobe(sch);
else if (sch->driver && sch->driver->verify)
sch->driver->verify(&sch->dev);
-
+out:
spin_unlock_irq(sch->lock);
put_device(&sch->dev);
return 0;
}
-
-static int
-s390_process_res_acc (struct res_acc_data *res_data)
+static void s390_process_res_acc (struct res_acc_data *res_data)
{
- int rc;
char dbf_txt[15];
- sprintf(dbf_txt, "accpr%x", res_data->chp->id);
+ sprintf(dbf_txt, "accpr%x.%02x", res_data->chpid.cssid,
+ res_data->chpid.id);
CIO_TRACE_EVENT( 2, dbf_txt);
if (res_data->fla != 0) {
sprintf(dbf_txt, "fla%x", res_data->fla);
* The more information we have (info), the less scanning
* will we have to do.
*/
- rc = for_each_subchannel(__s390_process_res_acc, res_data);
- if (css_slow_subchannels_exist())
- rc = -EAGAIN;
- else if (rc != -EAGAIN)
- rc = 0;
- return rc;
+ for_each_subchannel(__s390_process_res_acc, res_data);
}
static int
/* ccdf has to be big enough for a link-incident record */
} __attribute__ ((packed));
-static int chsc_process_sei_link_incident(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_link_incident(struct chsc_sei_area *sei_area)
{
- int chpid;
+ struct chp_id chpid;
+ int id;
CIO_CRW_EVENT(4, "chsc: link incident (rs=%02x, rs_id=%04x)\n",
sei_area->rs, sei_area->rsid);
if (sei_area->rs != 4)
- return 0;
- chpid = __get_chpid_from_lir(sei_area->ccdf);
- if (chpid < 0)
+ return;
+ id = __get_chpid_from_lir(sei_area->ccdf);
+ if (id < 0)
CIO_CRW_EVENT(4, "chsc: link incident - invalid LIR\n");
- else
- s390_set_chpid_offline(chpid);
-
- return 0;
+ else {
+ chp_id_init(&chpid);
+ chpid.id = id;
+ chsc_chp_offline(chpid);
+ }
}
-static int chsc_process_sei_res_acc(struct chsc_sei_area *sei_area)
+static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area)
{
struct res_acc_data res_data;
- struct device *dev;
+ struct chp_id chpid;
int status;
- int rc;
CIO_CRW_EVENT(4, "chsc: resource accessibility event (rs=%02x, "
"rs_id=%04x)\n", sei_area->rs, sei_area->rsid);
if (sei_area->rs != 4)
- return 0;
+ return;
+ chp_id_init(&chpid);
+ chpid.id = sei_area->rsid;
/* allocate a new channel path structure, if needed */
- status = get_chp_status(sei_area->rsid);
+ status = chp_get_status(chpid);
if (status < 0)
- new_channel_path(sei_area->rsid);
+ chp_new(chpid);
else if (!status)
- return 0;
- dev = get_device(&css[0]->chps[sei_area->rsid]->dev);
+ return;
memset(&res_data, 0, sizeof(struct res_acc_data));
- res_data.chp = to_channelpath(dev);
+ res_data.chpid = chpid;
if ((sei_area->vf & 0xc0) != 0) {
res_data.fla = sei_area->fla;
if ((sei_area->vf & 0xc0) == 0xc0)
/* link address */
res_data.fla_mask = 0xff00;
}
- rc = s390_process_res_acc(&res_data);
- put_device(dev);
-
- return rc;
+ s390_process_res_acc(&res_data);
}
-static int chsc_process_sei(struct chsc_sei_area *sei_area)
+struct chp_config_data {
+ u8 map[32];
+ u8 op;
+ u8 pc;
+};
+
+static void chsc_process_sei_chp_config(struct chsc_sei_area *sei_area)
{
- int rc;
+ struct chp_config_data *data;
+ struct chp_id chpid;
+ int num;
+
+ CIO_CRW_EVENT(4, "chsc: channel-path-configuration notification\n");
+ if (sei_area->rs != 0)
+ return;
+ data = (struct chp_config_data *) &(sei_area->ccdf);
+ chp_id_init(&chpid);
+ for (num = 0; num <= __MAX_CHPID; num++) {
+ if (!chp_test_bit(data->map, num))
+ continue;
+ chpid.id = num;
+ printk(KERN_WARNING "cio: processing configure event %d for "
+ "chpid %x.%02x\n", data->op, chpid.cssid, chpid.id);
+ switch (data->op) {
+ case 0:
+ chp_cfg_schedule(chpid, 1);
+ break;
+ case 1:
+ chp_cfg_schedule(chpid, 0);
+ break;
+ case 2:
+ chp_cfg_cancel_deconfigure(chpid);
+ break;
+ }
+ }
+}
+static void chsc_process_sei(struct chsc_sei_area *sei_area)
+{
/* Check if we might have lost some information. */
- if (sei_area->flags & 0x40)
+ if (sei_area->flags & 0x40) {
CIO_CRW_EVENT(2, "chsc: event overflow\n");
+ css_schedule_eval_all();
+ }
/* which kind of information was stored? */
- rc = 0;
switch (sei_area->cc) {
case 1: /* link incident*/
- rc = chsc_process_sei_link_incident(sei_area);
+ chsc_process_sei_link_incident(sei_area);
break;
case 2: /* i/o resource accessibiliy */
- rc = chsc_process_sei_res_acc(sei_area);
+ chsc_process_sei_res_acc(sei_area);
+ break;
+ case 8: /* channel-path-configuration notification */
+ chsc_process_sei_chp_config(sei_area);
break;
default: /* other stuff */
CIO_CRW_EVENT(4, "chsc: unhandled sei content code %d\n",
sei_area->cc);
break;
}
-
- return rc;
}
-int chsc_process_crw(void)
+void chsc_process_crw(void)
{
struct chsc_sei_area *sei_area;
- int ret;
- int rc;
if (!sei_page)
- return 0;
+ return;
/* Access to sei_page is serialized through machine check handler
* thread, so no need for locking. */
sei_area = sei_page;
CIO_TRACE_EVENT( 2, "prcss");
- ret = 0;
do {
memset(sei_area, 0, sizeof(*sei_area));
sei_area->request.length = 0x0010;
if (sei_area->response.code == 0x0001) {
CIO_CRW_EVENT(4, "chsc: sei successful\n");
- rc = chsc_process_sei(sei_area);
- if (rc)
- ret = rc;
+ chsc_process_sei(sei_area);
} else {
CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n",
sei_area->response.code);
- ret = 0;
break;
}
} while (sei_area->flags & 0x80);
-
- return ret;
}
static int
__chp_add_new_sch(struct subchannel_id schid)
{
struct schib schib;
- int ret;
if (stsch_err(schid, &schib))
/* We're through */
- return need_rescan ? -EAGAIN : -ENXIO;
+ return -ENXIO;
/* Put it on the slow path. */
- ret = css_enqueue_subchannel_slow(schid);
- if (ret) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- return -EAGAIN;
- }
+ css_schedule_eval(schid);
return 0;
}
__chp_add(struct subchannel_id schid, void *data)
{
int i, mask;
- struct channel_path *chp;
+ struct chp_id *chpid;
struct subchannel *sch;
- chp = data;
+ chpid = data;
sch = get_subchannel_by_schid(schid);
if (!sch)
/* Check if the subchannel is now available. */
for (i=0; i<8; i++) {
mask = 0x80 >> i;
if ((sch->schib.pmcw.pim & mask) &&
- (sch->schib.pmcw.chpid[i] == chp->id)) {
+ (sch->schib.pmcw.chpid[i] == chpid->id)) {
if (stsch(sch->schid, &sch->schib) != 0) {
/* Endgame. */
spin_unlock_irq(sch->lock);
return 0;
}
-static int
-chp_add(int chpid)
+void chsc_chp_online(struct chp_id chpid)
{
- int rc;
char dbf_txt[15];
- struct device *dev;
- if (!get_chp_status(chpid))
- return 0; /* no need to do the rest */
-
- sprintf(dbf_txt, "cadd%x", chpid);
+ sprintf(dbf_txt, "cadd%x.%02x", chpid.cssid, chpid.id);
CIO_TRACE_EVENT(2, dbf_txt);
- dev = get_device(&css[0]->chps[chpid]->dev);
- rc = for_each_subchannel(__chp_add, to_channelpath(dev));
- if (css_slow_subchannels_exist())
- rc = -EAGAIN;
- if (rc != -EAGAIN)
- rc = 0;
- put_device(dev);
- return rc;
+ if (chp_get_status(chpid) != 0)
+ for_each_subchannel(__chp_add, &chpid);
}
-/*
- * Handling of crw machine checks with channel path source.
- */
-int
-chp_process_crw(int chpid, int on)
-{
- if (on == 0) {
- /* Path has gone. We use the link incident routine.*/
- s390_set_chpid_offline(chpid);
- return 0; /* De-register is async anyway. */
- }
- /*
- * Path has come. Allocate a new channel path structure,
- * if needed.
- */
- if (get_chp_status(chpid) < 0)
- new_channel_path(chpid);
- /* Avoid the extra overhead in process_rec_acc. */
- return chp_add(chpid);
-}
-
-static int check_for_io_on_path(struct subchannel *sch, int index)
-{
- int cc;
-
- cc = stsch(sch->schid, &sch->schib);
- if (cc)
- return 0;
- if (sch->schib.scsw.actl && sch->schib.pmcw.lpum == (0x80 >> index))
- return 1;
- return 0;
-}
-
-static void terminate_internal_io(struct subchannel *sch)
-{
- if (cio_clear(sch)) {
- /* Recheck device in case clear failed. */
- sch->lpm = 0;
- if (device_trigger_verify(sch) != 0) {
- if(css_enqueue_subchannel_slow(sch->schid)) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- }
- }
- return;
- }
- /* Request retry of internal operation. */
- device_set_intretry(sch);
- /* Call handler. */
- if (sch->driver && sch->driver->termination)
- sch->driver->termination(&sch->dev);
-}
-
-static void
-__s390_subchannel_vary_chpid(struct subchannel *sch, __u8 chpid, int on)
+static void __s390_subchannel_vary_chpid(struct subchannel *sch,
+ struct chp_id chpid, int on)
{
int chp, old_lpm;
+ int mask;
unsigned long flags;
- if (!sch->ssd_info.valid)
- return;
-
spin_lock_irqsave(sch->lock, flags);
old_lpm = sch->lpm;
for (chp = 0; chp < 8; chp++) {
- if (sch->ssd_info.chpid[chp] != chpid)
+ mask = 0x80 >> chp;
+ if (!(sch->ssd_info.path_mask & mask))
+ continue;
+ if (!chp_id_is_equal(&sch->ssd_info.chpid[chp], &chpid))
continue;
if (on) {
- sch->opm |= (0x80 >> chp);
- sch->lpm |= (0x80 >> chp);
+ sch->opm |= mask;
+ sch->lpm |= mask;
if (!old_lpm)
device_trigger_reprobe(sch);
else if (sch->driver && sch->driver->verify)
sch->driver->verify(&sch->dev);
break;
}
- sch->opm &= ~(0x80 >> chp);
- sch->lpm &= ~(0x80 >> chp);
- if (check_for_io_on_path(sch, chp)) {
+ sch->opm &= ~mask;
+ sch->lpm &= ~mask;
+ if (check_for_io_on_path(sch, mask)) {
if (device_is_online(sch))
/* Path verification is done after killing. */
device_kill_io(sch);
- else
+ else {
/* Kill and retry internal I/O. */
terminate_internal_io(sch);
- } else if (!sch->lpm) {
- if (device_trigger_verify(sch) != 0) {
- if (css_enqueue_subchannel_slow(sch->schid)) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- }
+ /* Re-start path verification. */
+ if (sch->driver && sch->driver->verify)
+ sch->driver->verify(&sch->dev);
}
+ } else if (!sch->lpm) {
+ if (device_trigger_verify(sch) != 0)
+ css_schedule_eval(sch->schid);
} else if (sch->driver && sch->driver->verify)
sch->driver->verify(&sch->dev);
break;
spin_unlock_irqrestore(sch->lock, flags);
}
-static int
-s390_subchannel_vary_chpid_off(struct device *dev, void *data)
+static int s390_subchannel_vary_chpid_off(struct device *dev, void *data)
{
struct subchannel *sch;
- __u8 *chpid;
+ struct chp_id *chpid;
sch = to_subchannel(dev);
chpid = data;
return 0;
}
-static int
-s390_subchannel_vary_chpid_on(struct device *dev, void *data)
+static int s390_subchannel_vary_chpid_on(struct device *dev, void *data)
{
struct subchannel *sch;
- __u8 *chpid;
+ struct chp_id *chpid;
sch = to_subchannel(dev);
chpid = data;
/* We're through */
return -ENXIO;
/* Put it on the slow path. */
- if (css_enqueue_subchannel_slow(schid)) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- return -EAGAIN;
- }
+ css_schedule_eval(schid);
return 0;
}
-/*
- * Function: s390_vary_chpid
- * Varies the specified chpid online or offline
+/**
+ * chsc_chp_vary - propagate channel-path vary operation to subchannels
+ * @chpid: channl-path ID
+ * @on: non-zero for vary online, zero for vary offline
*/
-static int
-s390_vary_chpid( __u8 chpid, int on)
+int chsc_chp_vary(struct chp_id chpid, int on)
{
- char dbf_text[15];
- int status;
-
- sprintf(dbf_text, on?"varyon%x":"varyoff%x", chpid);
- CIO_TRACE_EVENT( 2, dbf_text);
-
- status = get_chp_status(chpid);
- if (status < 0) {
- printk(KERN_ERR "Can't vary unknown chpid %02X\n", chpid);
- return -EINVAL;
- }
-
- if (!on && !status) {
- printk(KERN_ERR "chpid %x is already offline\n", chpid);
- return -EINVAL;
- }
-
- set_chp_logically_online(chpid, on);
-
/*
* Redo PathVerification on the devices the chpid connects to
*/
if (on)
/* Scan for new devices on varied on path. */
for_each_subchannel(__s390_vary_chpid_on, NULL);
- if (need_rescan || css_slow_subchannels_exist())
- queue_work(slow_path_wq, &slow_path_work);
return 0;
}
-/*
- * Channel measurement related functions
- */
-static ssize_t
-chp_measurement_chars_read(struct kobject *kobj, char *buf, loff_t off,
- size_t count)
-{
- struct channel_path *chp;
- unsigned int size;
-
- chp = to_channelpath(container_of(kobj, struct device, kobj));
- if (!chp->cmg_chars)
- return 0;
-
- size = sizeof(struct cmg_chars);
-
- if (off > size)
- return 0;
- if (off + count > size)
- count = size - off;
- memcpy(buf, chp->cmg_chars + off, count);
- return count;
-}
-
-static struct bin_attribute chp_measurement_chars_attr = {
- .attr = {
- .name = "measurement_chars",
- .mode = S_IRUSR,
- .owner = THIS_MODULE,
- },
- .size = sizeof(struct cmg_chars),
- .read = chp_measurement_chars_read,
-};
-
-static void
-chp_measurement_copy_block(struct cmg_entry *buf,
- struct channel_subsystem *css, int chpid)
-{
- void *area;
- struct cmg_entry *entry, reference_buf;
- int idx;
-
- if (chpid < 128) {
- area = css->cub_addr1;
- idx = chpid;
- } else {
- area = css->cub_addr2;
- idx = chpid - 128;
- }
- entry = area + (idx * sizeof(struct cmg_entry));
- do {
- memcpy(buf, entry, sizeof(*entry));
- memcpy(&reference_buf, entry, sizeof(*entry));
- } while (reference_buf.values[0] != buf->values[0]);
-}
-
-static ssize_t
-chp_measurement_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
-{
- struct channel_path *chp;
- struct channel_subsystem *css;
- unsigned int size;
-
- chp = to_channelpath(container_of(kobj, struct device, kobj));
- css = to_css(chp->dev.parent);
-
- size = sizeof(struct cmg_entry);
-
- /* Only allow single reads. */
- if (off || count < size)
- return 0;
- chp_measurement_copy_block((struct cmg_entry *)buf, css, chp->id);
- count = size;
- return count;
-}
-
-static struct bin_attribute chp_measurement_attr = {
- .attr = {
- .name = "measurement",
- .mode = S_IRUSR,
- .owner = THIS_MODULE,
- },
- .size = sizeof(struct cmg_entry),
- .read = chp_measurement_read,
-};
-
-static void
-chsc_remove_chp_cmg_attr(struct channel_path *chp)
-{
- device_remove_bin_file(&chp->dev, &chp_measurement_chars_attr);
- device_remove_bin_file(&chp->dev, &chp_measurement_attr);
-}
-
-static int
-chsc_add_chp_cmg_attr(struct channel_path *chp)
-{
- int ret;
-
- ret = device_create_bin_file(&chp->dev, &chp_measurement_chars_attr);
- if (ret)
- return ret;
- ret = device_create_bin_file(&chp->dev, &chp_measurement_attr);
- if (ret)
- device_remove_bin_file(&chp->dev, &chp_measurement_chars_attr);
- return ret;
-}
-
static void
chsc_remove_cmg_attr(struct channel_subsystem *css)
{
for (i = 0; i <= __MAX_CHPID; i++) {
if (!css->chps[i])
continue;
- chsc_remove_chp_cmg_attr(css->chps[i]);
+ chp_remove_cmg_attr(css->chps[i]);
}
}
for (i = 0; i <= __MAX_CHPID; i++) {
if (!css->chps[i])
continue;
- ret = chsc_add_chp_cmg_attr(css->chps[i]);
+ ret = chp_add_cmg_attr(css->chps[i]);
if (ret)
goto cleanup;
}
for (--i; i >= 0; i--) {
if (!css->chps[i])
continue;
- chsc_remove_chp_cmg_attr(css->chps[i]);
+ chp_remove_cmg_attr(css->chps[i]);
}
return ret;
}
-
static int
__chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
{
} else
chsc_remove_cmg_attr(css);
}
- if (enable && !css->cm_enabled) {
+ if (!css->cm_enabled) {
free_page((unsigned long)css->cub_addr1);
free_page((unsigned long)css->cub_addr2);
}
return ret;
}
-/*
- * Files for the channel path entries.
- */
-static ssize_t
-chp_status_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct channel_path *chp = container_of(dev, struct channel_path, dev);
-
- if (!chp)
- return 0;
- return (get_chp_status(chp->id) ? sprintf(buf, "online\n") :
- sprintf(buf, "offline\n"));
-}
-
-static ssize_t
-chp_status_write(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
-{
- struct channel_path *cp = container_of(dev, struct channel_path, dev);
- char cmd[10];
- int num_args;
- int error;
-
- num_args = sscanf(buf, "%5s", cmd);
- if (!num_args)
- return count;
-
- if (!strnicmp(cmd, "on", 2))
- error = s390_vary_chpid(cp->id, 1);
- else if (!strnicmp(cmd, "off", 3))
- error = s390_vary_chpid(cp->id, 0);
- else
- error = -EINVAL;
-
- return error < 0 ? error : count;
-
-}
-
-static DEVICE_ATTR(status, 0644, chp_status_show, chp_status_write);
-
-static ssize_t
-chp_type_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct channel_path *chp = container_of(dev, struct channel_path, dev);
-
- if (!chp)
- return 0;
- return sprintf(buf, "%x\n", chp->desc.desc);
-}
-
-static DEVICE_ATTR(type, 0444, chp_type_show, NULL);
-
-static ssize_t
-chp_cmg_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct channel_path *chp = to_channelpath(dev);
-
- if (!chp)
- return 0;
- if (chp->cmg == -1) /* channel measurements not available */
- return sprintf(buf, "unknown\n");
- return sprintf(buf, "%x\n", chp->cmg);
-}
-
-static DEVICE_ATTR(cmg, 0444, chp_cmg_show, NULL);
-
-static ssize_t
-chp_shared_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct channel_path *chp = to_channelpath(dev);
-
- if (!chp)
- return 0;
- if (chp->shared == -1) /* channel measurements not available */
- return sprintf(buf, "unknown\n");
- return sprintf(buf, "%x\n", chp->shared);
-}
-
-static DEVICE_ATTR(shared, 0444, chp_shared_show, NULL);
-
-static struct attribute * chp_attrs[] = {
- &dev_attr_status.attr,
- &dev_attr_type.attr,
- &dev_attr_cmg.attr,
- &dev_attr_shared.attr,
- NULL,
-};
-
-static struct attribute_group chp_attr_group = {
- .attrs = chp_attrs,
-};
-
-static void
-chp_release(struct device *dev)
-{
- struct channel_path *cp;
-
- cp = container_of(dev, struct channel_path, dev);
- kfree(cp);
-}
-
-static int
-chsc_determine_channel_path_description(int chpid,
- struct channel_path_desc *desc)
+int chsc_determine_channel_path_description(struct chp_id chpid,
+ struct channel_path_desc *desc)
{
int ccode, ret;
scpd_area->request.length = 0x0010;
scpd_area->request.code = 0x0002;
- scpd_area->first_chpid = chpid;
- scpd_area->last_chpid = chpid;
+ scpd_area->first_chpid = chpid.id;
+ scpd_area->last_chpid = chpid.id;
ccode = chsc(scpd_area);
if (ccode > 0) {
}
}
-static int
-chsc_get_channel_measurement_chars(struct channel_path *chp)
+int chsc_get_channel_measurement_chars(struct channel_path *chp)
{
int ccode, ret;
scmc_area->request.length = 0x0010;
scmc_area->request.code = 0x0022;
- scmc_area->first_chpid = chp->id;
- scmc_area->last_chpid = chp->id;
+ scmc_area->first_chpid = chp->chpid.id;
+ scmc_area->last_chpid = chp->chpid.id;
ccode = chsc(scmc_area);
if (ccode > 0) {
return ret;
}
-/*
- * Entries for chpids on the system bus.
- * This replaces /proc/chpids.
- */
-static int
-new_channel_path(int chpid)
-{
- struct channel_path *chp;
- int ret;
-
- chp = kzalloc(sizeof(struct channel_path), GFP_KERNEL);
- if (!chp)
- return -ENOMEM;
-
- /* fill in status, etc. */
- chp->id = chpid;
- chp->state = 1;
- chp->dev.parent = &css[0]->device;
- chp->dev.release = chp_release;
- snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp0.%x", chpid);
-
- /* Obtain channel path description and fill it in. */
- ret = chsc_determine_channel_path_description(chpid, &chp->desc);
- if (ret)
- goto out_free;
- /* Get channel-measurement characteristics. */
- if (css_characteristics_avail && css_chsc_characteristics.scmc
- && css_chsc_characteristics.secm) {
- ret = chsc_get_channel_measurement_chars(chp);
- if (ret)
- goto out_free;
- } else {
- static int msg_done;
-
- if (!msg_done) {
- printk(KERN_WARNING "cio: Channel measurements not "
- "available, continuing.\n");
- msg_done = 1;
- }
- chp->cmg = -1;
- }
-
- /* make it known to the system */
- ret = device_register(&chp->dev);
- if (ret) {
- printk(KERN_WARNING "%s: could not register %02x\n",
- __func__, chpid);
- goto out_free;
- }
- ret = sysfs_create_group(&chp->dev.kobj, &chp_attr_group);
- if (ret) {
- device_unregister(&chp->dev);
- goto out_free;
- }
- mutex_lock(&css[0]->mutex);
- if (css[0]->cm_enabled) {
- ret = chsc_add_chp_cmg_attr(chp);
- if (ret) {
- sysfs_remove_group(&chp->dev.kobj, &chp_attr_group);
- device_unregister(&chp->dev);
- mutex_unlock(&css[0]->mutex);
- goto out_free;
- }
- }
- css[0]->chps[chpid] = chp;
- mutex_unlock(&css[0]->mutex);
- return ret;
-out_free:
- kfree(chp);
- return ret;
-}
-
-void *
-chsc_get_chp_desc(struct subchannel *sch, int chp_no)
-{
- struct channel_path *chp;
- struct channel_path_desc *desc;
-
- chp = css[0]->chps[sch->schib.pmcw.chpid[chp_no]];
- if (!chp)
- return NULL;
- desc = kmalloc(sizeof(struct channel_path_desc), GFP_KERNEL);
- if (!desc)
- return NULL;
- memcpy(desc, &chp->desc, sizeof(struct channel_path_desc));
- return desc;
-}
-
static int __init
chsc_alloc_sei_area(void)
{
#ifndef S390_CHSC_H
#define S390_CHSC_H
-#define CHSC_SEI_ACC_CHPID 1
-#define CHSC_SEI_ACC_LINKADDR 2
-#define CHSC_SEI_ACC_FULLLINKADDR 3
+#include <linux/types.h>
+#include <linux/device.h>
+#include <asm/chpid.h>
+#include "schid.h"
#define CHSC_SDA_OC_MSS 0x2
u8 chpp;
} __attribute__ ((packed));
-struct channel_path {
- int id;
- int state;
- struct channel_path_desc desc;
- /* Channel-measurement related stuff: */
- int cmg;
- int shared;
- void *cmg_chars;
- struct device dev;
-};
+struct channel_path;
-extern void s390_process_css( void );
-extern void chsc_validate_chpids(struct subchannel *);
-extern void chpid_is_actually_online(int);
-extern int css_get_ssd_info(struct subchannel *);
-extern int chsc_process_crw(void);
-extern int chp_process_crw(int, int);
+extern void chsc_process_crw(void);
struct css_general_char {
u64 : 41;
extern struct css_general_char css_general_characteristics;
extern struct css_chsc_char css_chsc_characteristics;
+struct chsc_ssd_info {
+ u8 path_mask;
+ u8 fla_valid_mask;
+ struct chp_id chpid[8];
+ u16 fla[8];
+};
+extern int chsc_get_ssd_info(struct subchannel_id schid,
+ struct chsc_ssd_info *ssd);
extern int chsc_determine_css_characteristics(void);
extern int css_characteristics_avail;
-extern void *chsc_get_chp_desc(struct subchannel*, int);
-
extern int chsc_enable_facility(int);
struct channel_subsystem;
extern int chsc_secm(struct channel_subsystem *, int);
-#define to_channelpath(device) container_of(device, struct channel_path, dev)
+int chsc_chp_vary(struct chp_id chpid, int on);
+int chsc_determine_channel_path_description(struct chp_id chpid,
+ struct channel_path_desc *desc);
+void chsc_chp_online(struct chp_id chpid);
+void chsc_chp_offline(struct chp_id chpid);
+int chsc_get_channel_measurement_chars(struct channel_path *chp);
#endif
#include <asm/setup.h>
#include <asm/reset.h>
#include <asm/ipl.h>
+#include <asm/chpid.h>
#include "airq.h"
#include "cio.h"
#include "css.h"
#include "ioasm.h"
#include "blacklist.h"
#include "cio_debug.h"
+#include "chp.h"
#include "../s390mach.h"
debug_info_t *cio_debug_msg_id;
err = -ENODEV;
goto out;
}
- sch->opm = 0xff;
- if (!cio_is_console(sch->schid))
- chsc_validate_chpids(sch);
+ if (cio_is_console(sch->schid))
+ sch->opm = 0xff;
+ else
+ sch->opm = chp_get_sch_opm(sch);
sch->lpm = sch->schib.pmcw.pam & sch->opm;
CIO_DEBUG(KERN_INFO, 0,
{
int i, ret;
unsigned long long timeout;
+ struct chp_id chpid;
/* Reset subchannels. */
for_each_subchannel(__shutdown_subchannel_easy, NULL);
__ctl_set_bit(14, 28);
/* Temporarily reenable machine checks. */
local_mcck_enable();
+ chp_id_init(&chpid);
for (i = 0; i <= __MAX_CHPID; i++) {
- ret = rchp(i);
+ chpid.id = i;
+ ret = rchp(chpid);
if ((ret == 0) || (ret == 2))
/*
* rchp either succeeded, or another rchp is already
do_reipl_asm(*((__u32*)&schid));
}
-static struct schib __initdata ipl_schib;
-
-/*
- * ipl_save_parameters gets called very early. It is not allowed to access
- * anything in the bss section at all. The bss section is not cleared yet,
- * but may contain some ipl parameters written by the firmware.
- * These parameters (if present) are copied to 0x2000.
- * To avoid corruption of the ipl parameters, all variables used by this
- * function must reside on the stack or in the data section.
- */
-void ipl_save_parameters(void)
+int __init cio_get_iplinfo(struct cio_iplinfo *iplinfo)
{
struct subchannel_id schid;
- unsigned int *ipl_ptr;
- void *src, *dst;
+ struct schib schib;
schid = *(struct subchannel_id *)__LC_SUBCHANNEL_ID;
if (!schid.one)
- return;
- if (stsch(schid, &ipl_schib))
- return;
- if (!ipl_schib.pmcw.dnv)
- return;
- ipl_devno = ipl_schib.pmcw.dev;
- ipl_flags |= IPL_DEVNO_VALID;
- if (!ipl_schib.pmcw.qf)
- return;
- ipl_flags |= IPL_PARMBLOCK_VALID;
- ipl_ptr = (unsigned int *)__LC_IPL_PARMBLOCK_PTR;
- src = (void *)(unsigned long)*ipl_ptr;
- dst = (void *)IPL_PARMBLOCK_ORIGIN;
- memmove(dst, src, PAGE_SIZE);
- *ipl_ptr = IPL_PARMBLOCK_ORIGIN;
+ return -ENODEV;
+ if (stsch(schid, &schib))
+ return -ENODEV;
+ if (!schib.pmcw.dnv)
+ return -ENODEV;
+ iplinfo->devno = schib.pmcw.dev;
+ iplinfo->is_qdio = schib.pmcw.qf;
+ return 0;
}
#ifndef S390_CIO_H
#define S390_CIO_H
-#include "schid.h"
#include <linux/mutex.h>
-
-/*
- * where we put the ssd info
- */
-struct ssd_info {
- __u8 valid:1;
- __u8 type:7; /* subchannel type */
- __u8 chpid[8]; /* chpids */
- __u16 fla[8]; /* full link addresses */
-} __attribute__ ((packed));
+#include <linux/device.h>
+#include <asm/chpid.h>
+#include "chsc.h"
+#include "schid.h"
/*
* path management control word
struct schib schib; /* subchannel information block */
struct orb orb; /* operation request block */
struct ccw1 sense_ccw; /* static ccw for sense command */
- struct ssd_info ssd_info; /* subchannel description */
+ struct chsc_ssd_info ssd_info; /* subchannel description */
struct device dev; /* entry in device tree */
struct css_driver *driver;
} __attribute__ ((aligned(8)));
};
static struct cmb_area cmb_area = {
- .lock = SPIN_LOCK_UNLOCKED,
+ .lock = __SPIN_LOCK_UNLOCKED(cmb_area.lock),
.list = LIST_HEAD_INIT(cmb_area.list),
.num_channels = 1024,
};
#include "ioasm.h"
#include "chsc.h"
#include "device.h"
+#include "idset.h"
+#include "chp.h"
-int need_rescan = 0;
int css_init_done = 0;
static int need_reprobe = 0;
static int max_ssid = 0;
mutex_unlock(&sch->reg_mutex);
}
-static int
-css_register_subchannel(struct subchannel *sch)
+static void ssd_from_pmcw(struct chsc_ssd_info *ssd, struct pmcw *pmcw)
+{
+ int i;
+ int mask;
+
+ memset(ssd, 0, sizeof(struct chsc_ssd_info));
+ ssd->path_mask = pmcw->pim;
+ for (i = 0; i < 8; i++) {
+ mask = 0x80 >> i;
+ if (pmcw->pim & mask) {
+ chp_id_init(&ssd->chpid[i]);
+ ssd->chpid[i].id = pmcw->chpid[i];
+ }
+ }
+}
+
+static void ssd_register_chpids(struct chsc_ssd_info *ssd)
+{
+ int i;
+ int mask;
+
+ for (i = 0; i < 8; i++) {
+ mask = 0x80 >> i;
+ if (ssd->path_mask & mask)
+ if (!chp_is_registered(ssd->chpid[i]))
+ chp_new(ssd->chpid[i]);
+ }
+}
+
+void css_update_ssd_info(struct subchannel *sch)
+{
+ int ret;
+
+ if (cio_is_console(sch->schid)) {
+ /* Console is initialized too early for functions requiring
+ * memory allocation. */
+ ssd_from_pmcw(&sch->ssd_info, &sch->schib.pmcw);
+ } else {
+ ret = chsc_get_ssd_info(sch->schid, &sch->ssd_info);
+ if (ret)
+ ssd_from_pmcw(&sch->ssd_info, &sch->schib.pmcw);
+ ssd_register_chpids(&sch->ssd_info);
+ }
+}
+
+static int css_register_subchannel(struct subchannel *sch)
{
int ret;
sch->dev.bus = &css_bus_type;
sch->dev.release = &css_subchannel_release;
sch->dev.groups = subch_attr_groups;
-
- css_get_ssd_info(sch);
-
+ css_update_ssd_info(sch);
/* make it known to the system */
ret = css_sch_device_register(sch);
if (ret) {
return css_probe_device(schid);
}
-static int css_evaluate_subchannel(struct subchannel_id schid, int slow)
+static void css_evaluate_subchannel(struct subchannel_id schid, int slow)
{
struct subchannel *sch;
int ret;
put_device(&sch->dev);
} else
ret = css_evaluate_new_subchannel(schid, slow);
-
- return ret;
+ if (ret == -EAGAIN)
+ css_schedule_eval(schid);
}
-static int
-css_rescan_devices(struct subchannel_id schid, void *data)
+static struct idset *slow_subchannel_set;
+static spinlock_t slow_subchannel_lock;
+
+static int __init slow_subchannel_init(void)
{
- return css_evaluate_subchannel(schid, 1);
+ spin_lock_init(&slow_subchannel_lock);
+ slow_subchannel_set = idset_sch_new();
+ if (!slow_subchannel_set) {
+ printk(KERN_WARNING "cio: could not allocate slow subchannel "
+ "set\n");
+ return -ENOMEM;
+ }
+ return 0;
}
-struct slow_subchannel {
- struct list_head slow_list;
- struct subchannel_id schid;
-};
-
-static LIST_HEAD(slow_subchannels_head);
-static DEFINE_SPINLOCK(slow_subchannel_lock);
+subsys_initcall(slow_subchannel_init);
-static void
-css_trigger_slow_path(struct work_struct *unused)
+static void css_slow_path_func(struct work_struct *unused)
{
- CIO_TRACE_EVENT(4, "slowpath");
-
- if (need_rescan) {
- need_rescan = 0;
- for_each_subchannel(css_rescan_devices, NULL);
- return;
- }
+ struct subchannel_id schid;
+ CIO_TRACE_EVENT(4, "slowpath");
spin_lock_irq(&slow_subchannel_lock);
- while (!list_empty(&slow_subchannels_head)) {
- struct slow_subchannel *slow_sch =
- list_entry(slow_subchannels_head.next,
- struct slow_subchannel, slow_list);
-
- list_del_init(slow_subchannels_head.next);
+ init_subchannel_id(&schid);
+ while (idset_sch_get_first(slow_subchannel_set, &schid)) {
+ idset_sch_del(slow_subchannel_set, schid);
spin_unlock_irq(&slow_subchannel_lock);
- css_evaluate_subchannel(slow_sch->schid, 1);
+ css_evaluate_subchannel(schid, 1);
spin_lock_irq(&slow_subchannel_lock);
- kfree(slow_sch);
}
spin_unlock_irq(&slow_subchannel_lock);
}
-DECLARE_WORK(slow_path_work, css_trigger_slow_path);
+static DECLARE_WORK(slow_path_work, css_slow_path_func);
struct workqueue_struct *slow_path_wq;
+void css_schedule_eval(struct subchannel_id schid)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&slow_subchannel_lock, flags);
+ idset_sch_add(slow_subchannel_set, schid);
+ queue_work(slow_path_wq, &slow_path_work);
+ spin_unlock_irqrestore(&slow_subchannel_lock, flags);
+}
+
+void css_schedule_eval_all(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&slow_subchannel_lock, flags);
+ idset_fill(slow_subchannel_set);
+ queue_work(slow_path_wq, &slow_path_work);
+ spin_unlock_irqrestore(&slow_subchannel_lock, flags);
+}
+
/* Reprobe subchannel if unregistered. */
static int reprobe_subchannel(struct subchannel_id schid, void *data)
{
EXPORT_SYMBOL_GPL(css_schedule_reprobe);
-/*
- * Rescan for new devices. FIXME: This is slow.
- * This function is called when we have lost CRWs due to overflows and we have
- * to do subchannel housekeeping.
- */
-void
-css_reiterate_subchannels(void)
-{
- css_clear_subchannel_slow_list();
- need_rescan = 1;
-}
-
/*
* Called from the machine check handler for subchannel report words.
*/
-int
-css_process_crw(int rsid1, int rsid2)
+void css_process_crw(int rsid1, int rsid2)
{
- int ret;
struct subchannel_id mchk_schid;
CIO_CRW_EVENT(2, "source is subchannel %04X, subsystem id %x\n",
rsid1, rsid2);
-
- if (need_rescan)
- /* We need to iterate all subchannels anyway. */
- return -EAGAIN;
-
init_subchannel_id(&mchk_schid);
mchk_schid.sch_no = rsid1;
if (rsid2 != 0)
* use stsch() to find out if the subchannel in question has come
* or gone.
*/
- ret = css_evaluate_subchannel(mchk_schid, 0);
- if (ret == -EAGAIN) {
- if (css_enqueue_subchannel_slow(mchk_schid)) {
- css_clear_subchannel_slow_list();
- need_rescan = 1;
- }
- }
- return ret;
+ css_evaluate_subchannel(mchk_schid, 0);
}
static int __init
subsys_initcall(init_channel_subsystem);
-int
-css_enqueue_subchannel_slow(struct subchannel_id schid)
-{
- struct slow_subchannel *new_slow_sch;
- unsigned long flags;
-
- new_slow_sch = kzalloc(sizeof(struct slow_subchannel), GFP_ATOMIC);
- if (!new_slow_sch)
- return -ENOMEM;
- new_slow_sch->schid = schid;
- spin_lock_irqsave(&slow_subchannel_lock, flags);
- list_add_tail(&new_slow_sch->slow_list, &slow_subchannels_head);
- spin_unlock_irqrestore(&slow_subchannel_lock, flags);
- return 0;
-}
-
-void
-css_clear_subchannel_slow_list(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&slow_subchannel_lock, flags);
- while (!list_empty(&slow_subchannels_head)) {
- struct slow_subchannel *slow_sch =
- list_entry(slow_subchannels_head.next,
- struct slow_subchannel, slow_list);
-
- list_del_init(slow_subchannels_head.next);
- kfree(slow_sch);
- }
- spin_unlock_irqrestore(&slow_subchannel_lock, flags);
-}
-
-
-
-int
-css_slow_subchannels_exist(void)
-{
- return (!list_empty(&slow_subchannels_head));
-}
-
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(css_bus_type);
EXPORT_SYMBOL_GPL(css_characteristics_avail);
#include <linux/mutex.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
+#include <linux/device.h>
+#include <linux/types.h>
#include <asm/cio.h>
+#include <asm/chpid.h>
#include "schid.h"
extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
extern int css_init_done;
extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);
-extern int css_process_crw(int, int);
+extern void css_process_crw(int, int);
extern void css_reiterate_subchannels(void);
+void css_update_ssd_info(struct subchannel *sch);
#define __MAX_SUBCHANNEL 65535
#define __MAX_SSID 3
-#define __MAX_CHPID 255
-#define __MAX_CSSID 0
struct channel_subsystem {
u8 cssid;
void device_kill_pending_timer(struct subchannel *);
/* Helper functions to build lists for the slow path. */
-extern int css_enqueue_subchannel_slow(struct subchannel_id schid);
-void css_walk_subchannel_slow_list(void (*fn)(unsigned long));
-void css_clear_subchannel_slow_list(void);
-int css_slow_subchannels_exist(void);
-extern int need_rescan;
+void css_schedule_eval(struct subchannel_id schid);
+void css_schedule_eval_all(void);
int sch_is_pseudo_sch(struct subchannel *);
extern struct workqueue_struct *slow_path_wq;
-extern struct work_struct slow_path_work;
int subchannel_add_files (struct device *);
extern struct attribute_group *subch_attr_groups[];
/* Store modalias string delimited by prefix/suffix string into buffer with
* specified size. Return length of resulting string (excluding trailing '\0')
* even if string doesn't fit buffer (snprintf semantics). */
-static int snprint_alias(char *buf, size_t size, const char *prefix,
+static int snprint_alias(char *buf, size_t size,
struct ccw_device_id *id, const char *suffix)
{
int len;
- len = snprintf(buf, size, "%sccw:t%04Xm%02X", prefix, id->cu_type,
- id->cu_model);
+ len = snprintf(buf, size, "ccw:t%04Xm%02X", id->cu_type, id->cu_model);
if (len > size)
return len;
buf += len;
struct ccw_device *cdev = to_ccwdev(dev);
struct ccw_device_id *id = &(cdev->id);
int i = 0;
- int len;
+ int len = 0;
+ int ret;
+ char modalias_buf[30];
/* CU_TYPE= */
- len = snprintf(buffer, buffer_size, "CU_TYPE=%04X", id->cu_type) + 1;
- if (len > buffer_size || i >= num_envp)
- return -ENOMEM;
- envp[i++] = buffer;
- buffer += len;
- buffer_size -= len;
+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+ "CU_TYPE=%04X", id->cu_type);
+ if (ret)
+ return ret;
/* CU_MODEL= */
- len = snprintf(buffer, buffer_size, "CU_MODEL=%02X", id->cu_model) + 1;
- if (len > buffer_size || i >= num_envp)
- return -ENOMEM;
- envp[i++] = buffer;
- buffer += len;
- buffer_size -= len;
+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+ "CU_MODEL=%02X", id->cu_model);
+ if (ret)
+ return ret;
/* The next two can be zero, that's ok for us */
/* DEV_TYPE= */
- len = snprintf(buffer, buffer_size, "DEV_TYPE=%04X", id->dev_type) + 1;
- if (len > buffer_size || i >= num_envp)
- return -ENOMEM;
- envp[i++] = buffer;
- buffer += len;
- buffer_size -= len;
+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+ "DEV_TYPE=%04X", id->dev_type);
+ if (ret)
+ return ret;
/* DEV_MODEL= */
- len = snprintf(buffer, buffer_size, "DEV_MODEL=%02X",
- (unsigned char) id->dev_model) + 1;
- if (len > buffer_size || i >= num_envp)
- return -ENOMEM;
- envp[i++] = buffer;
- buffer += len;
- buffer_size -= len;
+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+ "DEV_MODEL=%02X", id->dev_model);
+ if (ret)
+ return ret;
/* MODALIAS= */
- len = snprint_alias(buffer, buffer_size, "MODALIAS=", id, "") + 1;
- if (len > buffer_size || i >= num_envp)
- return -ENOMEM;
- envp[i++] = buffer;
- buffer += len;
- buffer_size -= len;
-
- envp[i] = NULL;
-
- return 0;
+ snprint_alias(modalias_buf, sizeof(modalias_buf), id, "");
+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
+ "MODALIAS=%s", modalias_buf);
+ return ret;
}
struct bus_type ccw_bus_type;
chpids_show (struct device * dev, struct device_attribute *attr, char * buf)
{
struct subchannel *sch = to_subchannel(dev);
- struct ssd_info *ssd = &sch->ssd_info;
+ struct chsc_ssd_info *ssd = &sch->ssd_info;
ssize_t ret = 0;
int chp;
+ int mask;
- for (chp = 0; chp < 8; chp++)
- ret += sprintf (buf+ret, "%02x ", ssd->chpid[chp]);
+ for (chp = 0; chp < 8; chp++) {
+ mask = 0x80 >> chp;
+ if (ssd->path_mask & mask)
+ ret += sprintf(buf + ret, "%02x ", ssd->chpid[chp].id);
+ else
+ ret += sprintf(buf + ret, "00 ");
+ }
ret += sprintf (buf+ret, "\n");
return min((ssize_t)PAGE_SIZE, ret);
}
struct ccw_device_id *id = &(cdev->id);
int len;
- len = snprint_alias(buf, PAGE_SIZE, "", id, "\n") + 1;
+ len = snprint_alias(buf, PAGE_SIZE, id, "\n") + 1;
return len > PAGE_SIZE ? PAGE_SIZE : len;
}
return sch_is_pseudo_sch(to_subchannel(cdev->dev.parent));
}
-static void ccw_device_unregister(struct work_struct *work)
+static void ccw_device_unregister(struct ccw_device *cdev)
{
- struct ccw_device_private *priv;
- struct ccw_device *cdev;
-
- priv = container_of(work, struct ccw_device_private, kick_work);
- cdev = priv->cdev;
if (test_and_clear_bit(1, &cdev->private->registered))
- device_unregister(&cdev->dev);
- put_device(&cdev->dev);
+ device_del(&cdev->dev);
}
static void
spin_lock_irqsave(cdev->ccwlock, flags);
cdev->private->state = DEV_STATE_NOT_OPER;
spin_unlock_irqrestore(cdev->ccwlock, flags);
- if (get_device(&cdev->dev)) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_unregister);
- queue_work(ccw_device_work, &cdev->private->kick_work);
- }
+ ccw_device_unregister(cdev);
+ put_device(&cdev->dev);
return ;
}
sch = to_subchannel(cdev->dev.parent);
return (ret == 0) ? -ENODEV : ret;
}
-static ssize_t
-online_store (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static void online_store_handle_offline(struct ccw_device *cdev)
+{
+ if (cdev->private->state == DEV_STATE_DISCONNECTED)
+ ccw_device_remove_disconnected(cdev);
+ else if (cdev->drv && cdev->drv->set_offline)
+ ccw_device_set_offline(cdev);
+}
+
+static int online_store_recog_and_online(struct ccw_device *cdev)
+{
+ int ret;
+
+ /* Do device recognition, if needed. */
+ if (cdev->id.cu_type == 0) {
+ ret = ccw_device_recognition(cdev);
+ if (ret) {
+ printk(KERN_WARNING"Couldn't start recognition "
+ "for device %s (ret=%d)\n",
+ cdev->dev.bus_id, ret);
+ return ret;
+ }
+ wait_event(cdev->private->wait_q,
+ cdev->private->flags.recog_done);
+ }
+ if (cdev->drv && cdev->drv->set_online)
+ ccw_device_set_online(cdev);
+ return 0;
+}
+static void online_store_handle_online(struct ccw_device *cdev, int force)
+{
+ int ret;
+
+ ret = online_store_recog_and_online(cdev);
+ if (ret)
+ return;
+ if (force && cdev->private->state == DEV_STATE_BOXED) {
+ ret = ccw_device_stlck(cdev);
+ if (ret) {
+ printk(KERN_WARNING"ccw_device_stlck for device %s "
+ "returned %d!\n", cdev->dev.bus_id, ret);
+ return;
+ }
+ if (cdev->id.cu_type == 0)
+ cdev->private->state = DEV_STATE_NOT_OPER;
+ online_store_recog_and_online(cdev);
+ }
+
+}
+
+static ssize_t online_store (struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct ccw_device *cdev = to_ccwdev(dev);
- int i, force, ret;
+ int i, force;
char *tmp;
if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
force = 0;
i = simple_strtoul(buf, &tmp, 16);
}
- if (i == 1) {
- /* Do device recognition, if needed. */
- if (cdev->id.cu_type == 0) {
- ret = ccw_device_recognition(cdev);
- if (ret) {
- printk(KERN_WARNING"Couldn't start recognition "
- "for device %s (ret=%d)\n",
- cdev->dev.bus_id, ret);
- goto out;
- }
- wait_event(cdev->private->wait_q,
- cdev->private->flags.recog_done);
- }
- if (cdev->drv && cdev->drv->set_online)
- ccw_device_set_online(cdev);
- } else if (i == 0) {
- if (cdev->private->state == DEV_STATE_DISCONNECTED)
- ccw_device_remove_disconnected(cdev);
- else if (cdev->drv && cdev->drv->set_offline)
- ccw_device_set_offline(cdev);
- }
- if (force && cdev->private->state == DEV_STATE_BOXED) {
- ret = ccw_device_stlck(cdev);
- if (ret) {
- printk(KERN_WARNING"ccw_device_stlck for device %s "
- "returned %d!\n", cdev->dev.bus_id, ret);
- goto out;
- }
- /* Do device recognition, if needed. */
- if (cdev->id.cu_type == 0) {
- cdev->private->state = DEV_STATE_NOT_OPER;
- ret = ccw_device_recognition(cdev);
- if (ret) {
- printk(KERN_WARNING"Couldn't start recognition "
- "for device %s (ret=%d)\n",
- cdev->dev.bus_id, ret);
- goto out;
- }
- wait_event(cdev->private->wait_q,
- cdev->private->flags.recog_done);
- }
- if (cdev->drv && cdev->drv->set_online)
- ccw_device_set_online(cdev);
+
+ switch (i) {
+ case 0:
+ online_store_handle_offline(cdev);
+ break;
+ case 1:
+ online_store_handle_online(cdev, force);
+ break;
+ default:
+ count = -EINVAL;
}
- out:
if (cdev->drv)
module_put(cdev->drv->owner);
atomic_set(&cdev->private->onoff, 0);
.attrs = ccwdev_attrs,
};
-static int
-device_add_files (struct device *dev)
-{
- return sysfs_create_group(&dev->kobj, &ccwdev_attr_group);
-}
-
-static void
-device_remove_files(struct device *dev)
-{
- sysfs_remove_group(&dev->kobj, &ccwdev_attr_group);
-}
+struct attribute_group *ccwdev_attr_groups[] = {
+ &ccwdev_attr_group,
+ NULL,
+};
/* this is a simple abstraction for device_register that sets the
* correct bus type and adds the bus specific files */
return ret;
set_bit(1, &cdev->private->registered);
- if ((ret = device_add_files(dev))) {
- if (test_and_clear_bit(1, &cdev->private->registered))
- device_del(dev);
- }
return ret;
}
return;
}
set_bit(1, &cdev->private->registered);
- if (device_add_files(&cdev->dev)) {
- if (test_and_clear_bit(1, &cdev->private->registered))
- device_unregister(&cdev->dev);
- }
}
void ccw_device_do_unreg_rereg(struct work_struct *work)
cdev = priv->cdev;
sch = to_subchannel(cdev->dev.parent);
- device_remove_files(&cdev->dev);
- if (test_and_clear_bit(1, &cdev->private->registered))
- device_del(&cdev->dev);
+ ccw_device_unregister(cdev);
PREPARE_WORK(&cdev->private->kick_work,
ccw_device_add_changed);
queue_work(ccw_device_work, &cdev->private->kick_work);
cdev->dev.parent = &sch->dev;
cdev->dev.release = ccw_device_release;
INIT_LIST_HEAD(&cdev->private->kick_work.entry);
+ cdev->dev.groups = ccwdev_attr_groups;
/* Do first half of device_register. */
device_initialize(&cdev->dev);
if (!get_device(&sch->dev)) {
static void sch_attach_device(struct subchannel *sch,
struct ccw_device *cdev)
{
+ css_update_ssd_info(sch);
spin_lock_irq(sch->lock);
sch->dev.driver_data = cdev;
cdev->private->schid = sch->schid;
priv = container_of(work, struct ccw_device_private, kick_work);
cdev = priv->cdev;
sch = to_subchannel(cdev->dev.parent);
-
+ css_update_ssd_info(sch);
/*
* io_subchannel_register() will also be called after device
* recognition has been done for a boxed device (which will already
sch->dev.driver_data = NULL;
cdev->private->state = DEV_STATE_NOT_OPER;
spin_unlock_irqrestore(cdev->ccwlock, flags);
- /*
- * Put unregistration on workqueue to avoid livelocks on the css bus
- * semaphore.
- */
- if (get_device(&cdev->dev)) {
- PREPARE_WORK(&cdev->private->kick_work,
- ccw_device_unregister);
- queue_work(ccw_device_work, &cdev->private->kick_work);
- }
+ ccw_device_unregister(cdev);
+ put_device(&cdev->dev);
return 0;
}
#include <asm/ccwdev.h>
#include <asm/cio.h>
+#include <asm/chpid.h>
#include "cio.h"
#include "cio_debug.h"
#include "device.h"
#include "chsc.h"
#include "ioasm.h"
+#include "chp.h"
int
device_is_online(struct subchannel *sch)
__recover_lost_chpids(struct subchannel *sch, int old_lpm)
{
int mask, i;
+ struct chp_id chpid;
+ chp_id_init(&chpid);
for (i = 0; i<8; i++) {
mask = 0x80 >> i;
if (!(sch->lpm & mask))
continue;
if (old_lpm & mask)
continue;
- chpid_is_actually_online(sch->schib.pmcw.chpid[i]);
+ chpid.id = sch->schib.pmcw.chpid[i];
+ if (!chp_is_registered(chpid))
+ css_schedule_eval_all();
}
}
#include <asm/ccwdev.h>
#include <asm/idals.h>
+#include <asm/chpid.h>
#include "cio.h"
#include "cio_debug.h"
#include "css.h"
#include "chsc.h"
#include "device.h"
+#include "chp.h"
int ccw_device_set_options_mask(struct ccw_device *cdev, unsigned long flags)
{
ccw_device_get_chp_desc(struct ccw_device *cdev, int chp_no)
{
struct subchannel *sch;
+ struct chp_id chpid;
sch = to_subchannel(cdev->dev.parent);
- return chsc_get_chp_desc(sch, chp_no);
+ chp_id_init(&chpid);
+ chpid.id = sch->schib.pmcw.chpid[chp_no];
+ return chp_get_chp_desc(chpid);
}
// FIXME: these have to go:
--- /dev/null
+/*
+ * drivers/s390/cio/idset.c
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#include <linux/slab.h>
+#include <asm/bitops.h>
+#include "idset.h"
+#include "css.h"
+
+struct idset {
+ int num_ssid;
+ int num_id;
+ unsigned long bitmap[0];
+};
+
+static inline unsigned long bitmap_size(int num_ssid, int num_id)
+{
+ return __BITOPS_WORDS(num_ssid * num_id) * sizeof(unsigned long);
+}
+
+static struct idset *idset_new(int num_ssid, int num_id)
+{
+ struct idset *set;
+
+ set = kzalloc(sizeof(struct idset) + bitmap_size(num_ssid, num_id),
+ GFP_KERNEL);
+ if (set) {
+ set->num_ssid = num_ssid;
+ set->num_id = num_id;
+ }
+ return set;
+}
+
+void idset_free(struct idset *set)
+{
+ kfree(set);
+}
+
+void idset_clear(struct idset *set)
+{
+ memset(set->bitmap, 0, bitmap_size(set->num_ssid, set->num_id));
+}
+
+void idset_fill(struct idset *set)
+{
+ memset(set->bitmap, 0xff, bitmap_size(set->num_ssid, set->num_id));
+}
+
+static inline void idset_add(struct idset *set, int ssid, int id)
+{
+ set_bit(ssid * set->num_id + id, set->bitmap);
+}
+
+static inline void idset_del(struct idset *set, int ssid, int id)
+{
+ clear_bit(ssid * set->num_id + id, set->bitmap);
+}
+
+static inline int idset_contains(struct idset *set, int ssid, int id)
+{
+ return test_bit(ssid * set->num_id + id, set->bitmap);
+}
+
+static inline int idset_get_first(struct idset *set, int *ssid, int *id)
+{
+ int bitnum;
+
+ bitnum = find_first_bit(set->bitmap, set->num_ssid * set->num_id);
+ if (bitnum >= set->num_ssid * set->num_id)
+ return 0;
+ *ssid = bitnum / set->num_id;
+ *id = bitnum % set->num_id;
+ return 1;
+}
+
+struct idset *idset_sch_new(void)
+{
+ return idset_new(__MAX_SSID + 1, __MAX_SUBCHANNEL + 1);
+}
+
+void idset_sch_add(struct idset *set, struct subchannel_id schid)
+{
+ idset_add(set, schid.ssid, schid.sch_no);
+}
+
+void idset_sch_del(struct idset *set, struct subchannel_id schid)
+{
+ idset_del(set, schid.ssid, schid.sch_no);
+}
+
+int idset_sch_contains(struct idset *set, struct subchannel_id schid)
+{
+ return idset_contains(set, schid.ssid, schid.sch_no);
+}
+
+int idset_sch_get_first(struct idset *set, struct subchannel_id *schid)
+{
+ int ssid = 0;
+ int id = 0;
+ int rc;
+
+ rc = idset_get_first(set, &ssid, &id);
+ if (rc) {
+ init_subchannel_id(schid);
+ schid->ssid = ssid;
+ schid->sch_no = id;
+ }
+ return rc;
+}
--- /dev/null
+/*
+ * drivers/s390/cio/idset.h
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef S390_IDSET_H
+#define S390_IDSET_H S390_IDSET_H
+
+#include "schid.h"
+
+struct idset;
+
+void idset_free(struct idset *set);
+void idset_clear(struct idset *set);
+void idset_fill(struct idset *set);
+
+struct idset *idset_sch_new(void);
+void idset_sch_add(struct idset *set, struct subchannel_id id);
+void idset_sch_del(struct idset *set, struct subchannel_id id);
+int idset_sch_contains(struct idset *set, struct subchannel_id id);
+int idset_sch_get_first(struct idset *set, struct subchannel_id *id);
+
+#endif /* S390_IDSET_H */
#ifndef S390_CIO_IOASM_H
#define S390_CIO_IOASM_H
+#include <asm/chpid.h>
#include "schid.h"
/*
return cc;
}
-static inline int rchp(int chpid)
+static inline int rchp(struct chp_id chpid)
{
- register unsigned int reg1 asm ("1") = chpid;
+ register struct chp_id reg1 asm ("1") = chpid;
int ccode;
asm volatile(
memcpy(skb_put(skb,len_of_data),
privptr->p_mtc_envelope,
len_of_data);
- skb->mac.raw=skb->data;
skb->dev=dev;
+ skb_reset_mac_header(skb);
skb->protocol=htons(ETH_P_IP);
skb->ip_summed=CHECKSUM_UNNECESSARY;
privptr->stats.rx_packets++;
return;
}
skb_put(pskb, header->length);
- pskb->mac.raw = pskb->data;
+ skb_reset_mac_header(pskb);
len -= header->length;
skb = dev_alloc_skb(pskb->len);
if (!skb) {
privptr->stats.rx_dropped++;
return;
}
- memcpy(skb_put(skb, pskb->len), pskb->data, pskb->len);
- skb->mac.raw = skb->data;
+ skb_copy_from_linear_data(pskb, skb_put(skb, pskb->len),
+ pskb->len);
+ skb_reset_mac_header(skb);
skb->dev = pskb->dev;
skb->protocol = pskb->protocol;
pskb->ip_summed = CHECKSUM_UNNECESSARY;
spin_unlock(&ch->collect_lock);
return;
}
- ch->trans_skb->tail = ch->trans_skb->data = ch->trans_skb_data;
+ ch->trans_skb->data = ch->trans_skb_data;
+ skb_reset_tail_pointer(ch->trans_skb);
ch->trans_skb->len = 0;
if (ch->prof.maxmulti < (ch->collect_len + 2))
ch->prof.maxmulti = ch->collect_len + 2;
*((__u16 *) skb_put(ch->trans_skb, 2)) = ch->collect_len + 2;
i = 0;
while ((skb = skb_dequeue(&ch->collect_queue))) {
- memcpy(skb_put(ch->trans_skb, skb->len), skb->data,
- skb->len);
+ skb_copy_from_linear_data(skb, skb_put(ch->trans_skb,
+ skb->len),
+ skb->len);
privptr->stats.tx_packets++;
privptr->stats.tx_bytes += skb->len - LL_HEADER_LENGTH;
atomic_dec(&skb->users);
ctc_unpack_skb(ch, skb);
}
again:
- skb->data = skb->tail = ch->trans_skb_data;
+ skb->data = ch->trans_skb_data;
+ skb_reset_tail_pointer(skb);
skb->len = 0;
if (ctc_checkalloc_buffer(ch, 1))
return;
struct channel *ch;
DBF_TEXT(trace, 2, __FUNCTION__);
- if ((ch =
- (struct channel *) kmalloc(sizeof (struct channel),
- GFP_KERNEL)) == NULL) {
+ ch = kzalloc(sizeof(struct channel), GFP_KERNEL);
+ if (!ch) {
ctc_pr_warn("ctc: Out of memory in add_channel\n");
return -1;
}
- memset(ch, 0, sizeof (struct channel));
- if ((ch->ccw = kmalloc(8*sizeof(struct ccw1),
- GFP_KERNEL | GFP_DMA)) == NULL) {
+ /* assure all flags and counters are reset */
+ ch->ccw = kzalloc(8 * sizeof(struct ccw1), GFP_KERNEL | GFP_DMA);
+ if (!ch->ccw) {
kfree(ch);
ctc_pr_warn("ctc: Out of memory in add_channel\n");
return -1;
}
- memset(ch->ccw, 0, 8*sizeof(struct ccw1)); // assure all flags and counters are reset
/**
* "static" ccws are used in the following way:
return -1;
}
fsm_newstate(ch->fsm, CH_STATE_IDLE);
- if ((ch->irb = kmalloc(sizeof (struct irb),
- GFP_KERNEL)) == NULL) {
+ ch->irb = kzalloc(sizeof(struct irb), GFP_KERNEL);
+ if (!ch->irb) {
ctc_pr_warn("ctc: Out of memory in add_channel\n");
kfree_fsm(ch->fsm);
kfree(ch->ccw);
kfree(ch);
return -1;
}
- memset(ch->irb, 0, sizeof (struct irb));
while (*c && less_than((*c)->id, ch->id))
c = &(*c)->next;
if (*c && (!strncmp((*c)->id, ch->id, CTC_ID_SIZE))) {
* IDAL support in CTC is broken, so we have to
* care about skb's above 2G ourselves.
*/
- hi = ((unsigned long) skb->tail + LL_HEADER_LENGTH) >> 31;
+ hi = ((unsigned long)skb_tail_pointer(skb) +
+ LL_HEADER_LENGTH) >> 31;
if (hi) {
nskb = alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA);
if (!nskb) {
return -EBUSY;
}
- ch->trans_skb->tail = ch->trans_skb->data;
+ skb_reset_tail_pointer(ch->trans_skb);
ch->trans_skb->len = 0;
ch->ccw[1].count = skb->len;
- memcpy(skb_put(ch->trans_skb, skb->len), skb->data,
- skb->len);
+ skb_copy_from_linear_data(skb, skb_put(ch->trans_skb,
+ skb->len),
+ skb->len);
atomic_dec(&skb->users);
dev_kfree_skb_irq(skb);
ccw_idx = 0;
if (!get_device(&cgdev->dev))
return -ENODEV;
- priv = kmalloc(sizeof (struct ctc_priv), GFP_KERNEL);
+ priv = kzalloc(sizeof(struct ctc_priv), GFP_KERNEL);
if (!priv) {
ctc_pr_err("%s: Out of memory\n", __func__);
put_device(&cgdev->dev);
return -ENOMEM;
}
- memset(priv, 0, sizeof (struct ctc_priv));
rc = ctc_add_files(&cgdev->dev);
if (rc) {
kfree(priv);
DBF_TEXT(setup, 3, __FUNCTION__);
if (alloc_device) {
- dev = kmalloc(sizeof (struct net_device), GFP_KERNEL);
+ dev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
if (!dev)
return NULL;
- memset(dev, 0, sizeof (struct net_device));
}
dev->priv = privptr;
header->offset = card->tx_buffer->count;
header->type = card->lan_type;
header->slot = card->portno;
- memcpy(header + 1, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, header + 1, skb->len);
spin_unlock(&card->lock);
card->stats.tx_bytes += skb->len;
card->stats.tx_packets++;
card->stats.rx_dropped++;
return;
}
- skb->dev = card->dev;
memcpy(skb_put(skb, skb_len), skb_data, skb_len);
skb->protocol = card->lan_type_trans(skb, card->dev);
card->stats.rx_bytes += skb_len;
return;
}
skb_put(pskb, header->next);
- pskb->mac.raw = pskb->data;
+ skb_reset_mac_header(pskb);
skb = dev_alloc_skb(pskb->len);
if (!skb) {
PRINT_WARN("%s Out of memory in netiucv_unpack_skb\n",
privptr->stats.rx_dropped++;
return;
}
- memcpy(skb_put(skb, pskb->len), pskb->data, pskb->len);
- skb->mac.raw = skb->data;
+ skb_copy_from_linear_data(pskb, skb_put(skb, pskb->len),
+ pskb->len);
+ skb_reset_mac_header(skb);
skb->dev = pskb->dev;
skb->protocol = pskb->protocol;
pskb->ip_summed = CHECKSUM_UNNECESSARY;
msg->length, conn->max_buffsize);
return;
}
- conn->rx_buff->data = conn->rx_buff->tail = conn->rx_buff->head;
+ conn->rx_buff->data = conn->rx_buff->head;
+ skb_reset_tail_pointer(conn->rx_buff);
conn->rx_buff->len = 0;
rc = iucv_message_receive(conn->path, msg, 0, conn->rx_buff->data,
msg->length, NULL);
}
}
}
- conn->tx_buff->data = conn->tx_buff->tail = conn->tx_buff->head;
+ conn->tx_buff->data = conn->tx_buff->head;
+ skb_reset_tail_pointer(conn->tx_buff);
conn->tx_buff->len = 0;
spin_lock_irqsave(&conn->collect_lock, saveflags);
while ((skb = skb_dequeue(&conn->collect_queue))) {
header.next = conn->tx_buff->len + skb->len + NETIUCV_HDRLEN;
memcpy(skb_put(conn->tx_buff, NETIUCV_HDRLEN), &header,
NETIUCV_HDRLEN);
- memcpy(skb_put(conn->tx_buff, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb,
+ skb_put(conn->tx_buff, skb->len),
+ skb->len);
txbytes += skb->len;
txpackets++;
stat_maxcq++;
* Copy the skb to a new allocated skb in lowmem only if the
* data is located above 2G in memory or tailroom is < 2.
*/
- unsigned long hi =
- ((unsigned long)(skb->tail + NETIUCV_HDRLEN)) >> 31;
+ unsigned long hi = ((unsigned long)(skb_tail_pointer(skb) +
+ NETIUCV_HDRLEN)) >> 31;
int copied = 0;
if (hi || (skb_tailroom(skb) < 2)) {
nskb = alloc_skb(skb->len + NETIUCV_HDRLEN +
QETH_DBF_TEXT(trace, 5, "eddpcdtc");
if (skb_shinfo(eddp->skb)->nr_frags == 0) {
- memcpy(dst, eddp->skb->data + eddp->skb_offset, len);
+ skb_copy_from_linear_data_offset(eddp->skb, eddp->skb_offset,
+ dst, len);
*hcsum = csum_partial(eddp->skb->data + eddp->skb_offset, len,
*hcsum);
eddp->skb_offset += len;
eddp->skb_offset += VLAN_HLEN;
#endif /* CONFIG_QETH_VLAN */
}
- tcph = eddp->skb->h.th;
+ tcph = tcp_hdr(eddp->skb);
while (eddp->skb_offset < eddp->skb->len) {
data_len = min((int)skb_shinfo(eddp->skb)->gso_size,
(int)(eddp->skb->len - eddp->skb_offset));
QETH_DBF_TEXT(trace, 5, "eddpficx");
/* create our segmentation headers and copy original headers */
if (skb->protocol == htons(ETH_P_IP))
- eddp = qeth_eddp_create_eddp_data(qhdr, (u8 *)skb->nh.iph,
- skb->nh.iph->ihl*4,
- (u8 *)skb->h.th, skb->h.th->doff*4);
+ eddp = qeth_eddp_create_eddp_data(qhdr,
+ skb_network_header(skb),
+ ip_hdrlen(skb),
+ skb_transport_header(skb),
+ tcp_hdrlen(skb));
else
- eddp = qeth_eddp_create_eddp_data(qhdr, (u8 *)skb->nh.ipv6h,
- sizeof(struct ipv6hdr),
- (u8 *)skb->h.th, skb->h.th->doff*4);
+ eddp = qeth_eddp_create_eddp_data(qhdr,
+ skb_network_header(skb),
+ sizeof(struct ipv6hdr),
+ skb_transport_header(skb),
+ tcp_hdrlen(skb));
if (eddp == NULL) {
QETH_DBF_TEXT(trace, 2, "eddpfcnm");
return -ENOMEM;
}
if (qhdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2) {
- skb->mac.raw = (skb->data) + sizeof(struct qeth_hdr);
+ skb_set_mac_header(skb, sizeof(struct qeth_hdr));
memcpy(&eddp->mac, eth_hdr(skb), ETH_HLEN);
#ifdef CONFIG_QETH_VLAN
if (eddp->mac.h_proto == __constant_htons(ETH_P_8021Q)) {
QETH_DBF_TEXT(trace, 5, "creddpct");
if (skb->protocol == htons(ETH_P_IP))
ctx = qeth_eddp_create_context_generic(card, skb,
- sizeof(struct qeth_hdr) + skb->nh.iph->ihl*4 +
- skb->h.th->doff*4);
+ (sizeof(struct qeth_hdr) +
+ ip_hdrlen(skb) +
+ tcp_hdrlen(skb)));
else if (skb->protocol == htons(ETH_P_IPV6))
ctx = qeth_eddp_create_context_generic(card, skb,
sizeof(struct qeth_hdr) + sizeof(struct ipv6hdr) +
- skb->h.th->doff*4);
+ tcp_hdrlen(skb));
else
QETH_DBF_TEXT(trace, 2, "cetcpinv");
(card->info.link_type == QETH_LINK_TYPE_LANE_TR))
return tr_type_trans(skb,dev);
#endif /* CONFIG_TR */
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN );
eth = eth_hdr(skb);
struct iphdr *ip_hdr;
QETH_DBF_TEXT(trace,5,"skbfktr");
- skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
+ skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
/* this is a fake ethernet header */
- fake_hdr = (struct trh_hdr *) skb->mac.raw;
+ fake_hdr = tr_hdr(skb);
/* the destination MAC address */
switch (skb->pkt_type){
struct iphdr *ip_hdr;
QETH_DBF_TEXT(trace,5,"skbfketh");
- skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
+ skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
/* this is a fake ethernet header */
- fake_hdr = (struct ethhdr *) skb->mac.raw;
+ fake_hdr = eth_hdr(skb);
/* the destination MAC address */
switch (skb->pkt_type){
if (card->options.fake_ll)
qeth_rebuild_skb_fake_ll(card, skb, hdr);
else
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->ip_summed = card->options.checksum_type;
if (card->options.checksum_type == HW_CHECKSUMMING){
if ( (hdr->hdr.l3.ext_flags &
vlan_tag = qeth_rebuild_skb(card, skb, hdr);
else { /*in case of OSN*/
skb_push(skb, sizeof(struct qeth_hdr));
- memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
+ skb_copy_to_linear_data(skb, hdr,
+ sizeof(struct qeth_hdr));
}
/* is device UP ? */
if (!(card->dev->flags & IFF_UP)){
}
/* try something else */
if (skb->protocol == ETH_P_IPV6)
- return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
+ return (skb_network_header(skb)[24] == 0xff) ?
+ RTN_MULTICAST : 0;
else if (skb->protocol == ETH_P_IP)
- return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
+ return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
+ RTN_MULTICAST : 0;
/* ... */
if (!memcmp(skb->data, skb->dev->broadcast, 6))
return RTN_BROADCAST;
return card->info.is_multicast_different &
(card->qdio.no_out_queues - 1);
if (card->qdio.do_prio_queueing && (ipv == 4)) {
+ const u8 tos = ip_hdr(skb)->tos;
+
if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
- if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
+ if (tos & IP_TOS_NOTIMPORTANT)
return 3;
- if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
+ if (tos & IP_TOS_HIGHRELIABILITY)
return 2;
- if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
+ if (tos & IP_TOS_HIGHTHROUGHPUT)
return 1;
- if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
+ if (tos & IP_TOS_LOWDELAY)
return 0;
}
if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
- return 3 - (skb->nh.iph->tos >> 6);
+ return 3 - (tos >> 6);
} else if (card->qdio.do_prio_queueing && (ipv == 6)) {
/* TODO: IPv6!!! */
}
* memcpys instead of one memmove to save cycles.
*/
skb_push(skb, VLAN_HLEN);
- memcpy(skb->data, skb->data + 4, 4);
- memcpy(skb->data + 4, skb->data + 8, 4);
- memcpy(skb->data + 8, skb->data + 12, 4);
+ skb_copy_to_linear_data(skb, skb->data + 4, 4);
+ skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
+ skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
tag = (u16 *)(skb->data + 12);
/*
* first two bytes = ETH_P_8021Q (0x8100)
*((u32 *) skb->dst->neighbour->primary_key);
} else {
/* fill in destination address used in ip header */
- *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
+ *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
+ ip_hdr(skb)->daddr;
}
} else if (ipv == 6) { /* IPv6 or passthru */
hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
skb->dst->neighbour->primary_key, 16);
} else {
/* fill in destination address used in ip header */
- memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
+ memcpy(hdr->hdr.l3.dest_addr,
+ &ipv6_hdr(skb)->daddr, 16);
}
} else { /* passthrough */
if((skb->dev->type == ARPHRD_IEEE802_TR) &&
QETH_DBF_TEXT(trace, 5, "tsofhdr");
hdr = (struct qeth_hdr_tso *) skb->data;
- iph = skb->nh.iph;
- tcph = skb->h.th;
+ iph = ip_hdr(skb);
+ tcph = tcp_hdr(skb);
/*fix header to TSO values ...*/
hdr->hdr.hdr.l3.id = QETH_HEADER_TYPE_TSO;
/*set values which are fix for the first approach ...*/
static inline void
qeth_tso_set_tcpip_header(struct qeth_card *card, struct sk_buff *skb)
{
- struct iphdr *iph;
- struct ipv6hdr *ip6h;
- struct tcphdr *tcph;
-
- iph = skb->nh.iph;
- ip6h = skb->nh.ipv6h;
- tcph = skb->h.th;
+ struct iphdr *iph = ip_hdr(skb);
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ struct tcphdr *tcph = tcp_hdr(skb);
tcph->check = 0;
if (skb->protocol == ETH_P_IPV6) {
#include "cio/cio.h"
#include "cio/chsc.h"
#include "cio/css.h"
+#include "cio/chp.h"
#include "s390mach.h"
static struct semaphore m_sem;
s390_collect_crw_info(void *param)
{
struct crw crw[2];
- int ccode, ret, slow;
+ int ccode;
struct semaphore *sem;
unsigned int chain;
sem = (struct semaphore *)param;
repeat:
down_interruptible(sem);
- slow = 0;
chain = 0;
while (1) {
if (unlikely(chain > 1)) {
/* Check for overflows. */
if (crw[chain].oflw) {
pr_debug("%s: crw overflow detected!\n", __FUNCTION__);
- css_reiterate_subchannels();
+ css_schedule_eval_all();
chain = 0;
- slow = 1;
continue;
}
switch (crw[chain].rsc) {
if (crw[0].chn && !chain)
break;
pr_debug("source is subchannel %04X\n", crw[0].rsid);
- ret = css_process_crw (crw[0].rsid,
- chain ? crw[1].rsid : 0);
- if (ret == -EAGAIN)
- slow = 1;
+ css_process_crw(crw[0].rsid, chain ? crw[1].rsid : 0);
break;
case CRW_RSC_MONITOR:
pr_debug("source is monitoring facility\n");
}
switch (crw[0].erc) {
case CRW_ERC_IPARM: /* Path has come. */
- ret = chp_process_crw(crw[0].rsid, 1);
+ chp_process_crw(crw[0].rsid, 1);
break;
case CRW_ERC_PERRI: /* Path has gone. */
case CRW_ERC_PERRN:
- ret = chp_process_crw(crw[0].rsid, 0);
+ chp_process_crw(crw[0].rsid, 0);
break;
default:
pr_debug("Don't know how to handle erc=%x\n",
crw[0].erc);
- ret = 0;
}
- if (ret == -EAGAIN)
- slow = 1;
break;
case CRW_RSC_CONFIG:
pr_debug("source is configuration-alert facility\n");
break;
case CRW_RSC_CSS:
pr_debug("source is channel subsystem\n");
- ret = chsc_process_crw();
- if (ret == -EAGAIN)
- slow = 1;
+ chsc_process_crw();
break;
default:
pr_debug("unknown source\n");
/* chain is always 0 or 1 here. */
chain = crw[chain].chn ? chain + 1 : 0;
}
- if (slow)
- queue_work(slow_path_wq, &slow_path_work);
goto repeat;
return 0;
}
__initcall(create_proc_sysinfo);
+int get_cpu_capability(unsigned int *capability)
+{
+ struct sysinfo_1_2_2 *info;
+ int rc;
+
+ info = (void *) get_zeroed_page(GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ rc = stsi(info, 1, 2, 2);
+ if (rc == -ENOSYS)
+ goto out;
+ rc = 0;
+ *capability = info->capability;
+out:
+ free_page((unsigned long) info);
+ return rc;
+}
+
/*
* CPU capability might have changed. Therefore recalculate loops_per_jiffy.
*/
* Return: None.
*/
static void envctrl_set_mon(struct i2c_child_t *pchild,
- char *chnl_desc,
+ const char *chnl_desc,
int chnl_no)
{
/* Firmware only has temperature type. It does not distinguish
static void envctrl_init_adc(struct i2c_child_t *pchild, struct device_node *dp)
{
int i = 0, len;
- char *pos;
- unsigned int *pval;
+ const char *pos;
+ const unsigned int *pval;
/* Firmware describe channels into a stream separated by a '\0'. */
pos = of_get_property(dp, "channels-description", &len);
{
int len, i, tbls_size = 0;
struct device_node *dp = edev_child->prom_node;
- void *pval;
+ const void *pval;
/* Get device address. */
pval = of_get_property(dp, "reg", &len);
}
if (!sdev) {
#ifdef CONFIG_PCI
- struct linux_prom_registers *ebus_regs;
+ const struct linux_prom_registers *ebus_regs;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
#include <asm/openpromio.h>
#ifdef CONFIG_PCI
#include <linux/pci.h>
-#include <asm/pbm.h>
#endif
MODULE_AUTHOR("Thomas K. Dyas (tdyas@noc.rutgers.edu) and Eddie C. Dost (ecd@skynet.be)");
static int opromgetprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize)
{
- void *pval;
+ const void *pval;
int len;
if (!dp ||
if (bufsize >= 2*sizeof(int)) {
#ifdef CONFIG_PCI
struct pci_dev *pdev;
- struct pcidev_cookie *pcp;
- pdev = pci_find_slot (((int *) op->oprom_array)[0],
+ struct device_node *dp;
+
+ pdev = pci_get_bus_and_slot (((int *) op->oprom_array)[0],
((int *) op->oprom_array)[1]);
- pcp = pdev->sysdata;
- if (pcp != NULL) {
- dp = pcp->prom_node;
- data->current_node = dp;
- *((int *)op->oprom_array) = dp->node;
- op->oprom_size = sizeof(int);
- err = copyout(argp, op, bufsize + sizeof(int));
- }
+ dp = pci_device_to_OF_node(pdev);
+ data->current_node = dp;
+ *((int *)op->oprom_array) = dp->node;
+ op->oprom_size = sizeof(int);
+ err = copyout(argp, op, bufsize + sizeof(int));
+
+ pci_dev_put(pdev);
#endif
}
struct opiocdesc op;
struct device_node *dp;
char *str;
- void *pval;
+ const void *pval;
int err, len;
if (copy_from_user(&op, argp, sizeof(op)))
if (copy_from_user(&inout, argp, sizeof(inout)))
return -EFAULT;
- buffer = kmalloc(inout.len, GFP_KERNEL);
+ buffer = kzalloc(inout.len, GFP_KERNEL);
if (buffer == NULL)
return -ENOMEM;
- memset(buffer,0,inout.len);
vfc_lock_device(dev);
inout.ret=
vfc_i2c_recvbuf(dev,inout.addr & 0xff
static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev)
{
unsigned long base;
- void *pval;
+ const void *pval;
int len, err;
sdev->prom_node = dp->node;
static void __init sbus_bus_ranges_init(struct device_node *dp, struct sbus_bus *sbus)
{
- void *pval;
+ const void *pval;
int len;
pval = of_get_property(dp, "ranges", &len);
The ESP was an on-board SCSI controller used on Sun 3/80
machines. Say Y here to compile in support for it.
+config SCSI_ESP_CORE
+ tristate "ESP Scsi Driver Core"
+ depends on SCSI
+ select SCSI_SPI_ATTRS
+
config SCSI_SUNESP
tristate "Sparc ESP Scsi Driver"
depends on SBUS && SCSI
+ select SCSI_ESP_CORE
help
This is the driver for the Sun ESP SCSI host adapter. The ESP
chipset is present in most SPARC SBUS-based computers.
obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/
obj-$(CONFIG_MEGARAID_SAS) += megaraid/
obj-$(CONFIG_SCSI_ACARD) += atp870u.o
-obj-$(CONFIG_SCSI_SUNESP) += esp.o
+obj-$(CONFIG_SCSI_ESP_CORE) += esp_scsi.o
+obj-$(CONFIG_SCSI_SUNESP) += sun_esp.o
obj-$(CONFIG_SCSI_GDTH) += gdth.o
obj-$(CONFIG_SCSI_INITIO) += initio.o
obj-$(CONFIG_SCSI_INIA100) += a100u2w.o
+++ /dev/null
-/* esp.c: ESP Sun SCSI driver.
- *
- * Copyright (C) 1995, 1998, 2006 David S. Miller (davem@davemloft.net)
- */
-
-/* TODO:
- *
- * 1) Maybe disable parity checking in config register one for SCSI1
- * targets. (Gilmore says parity error on the SBus can lock up
- * old sun4c's)
- * 2) Add support for DMA2 pipelining.
- * 3) Add tagged queueing.
- */
-
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/blkdev.h>
-#include <linux/proc_fs.h>
-#include <linux/stat.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-
-#include "esp.h"
-
-#include <asm/sbus.h>
-#include <asm/dma.h>
-#include <asm/system.h>
-#include <asm/ptrace.h>
-#include <asm/pgtable.h>
-#include <asm/oplib.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#ifndef __sparc_v9__
-#include <asm/machines.h>
-#include <asm/idprom.h>
-#endif
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_eh.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_tcq.h>
-
-#define DRV_VERSION "1.101"
-
-#define DEBUG_ESP
-/* #define DEBUG_ESP_HME */
-/* #define DEBUG_ESP_DATA */
-/* #define DEBUG_ESP_QUEUE */
-/* #define DEBUG_ESP_DISCONNECT */
-/* #define DEBUG_ESP_STATUS */
-/* #define DEBUG_ESP_PHASES */
-/* #define DEBUG_ESP_WORKBUS */
-/* #define DEBUG_STATE_MACHINE */
-/* #define DEBUG_ESP_CMDS */
-/* #define DEBUG_ESP_IRQS */
-/* #define DEBUG_SDTR */
-/* #define DEBUG_ESP_SG */
-
-/* Use the following to sprinkle debugging messages in a way which
- * suits you if combinations of the above become too verbose when
- * trying to track down a specific problem.
- */
-/* #define DEBUG_ESP_MISC */
-
-#if defined(DEBUG_ESP)
-#define ESPLOG(foo) printk foo
-#else
-#define ESPLOG(foo)
-#endif /* (DEBUG_ESP) */
-
-#if defined(DEBUG_ESP_HME)
-#define ESPHME(foo) printk foo
-#else
-#define ESPHME(foo)
-#endif
-
-#if defined(DEBUG_ESP_DATA)
-#define ESPDATA(foo) printk foo
-#else
-#define ESPDATA(foo)
-#endif
-
-#if defined(DEBUG_ESP_QUEUE)
-#define ESPQUEUE(foo) printk foo
-#else
-#define ESPQUEUE(foo)
-#endif
-
-#if defined(DEBUG_ESP_DISCONNECT)
-#define ESPDISC(foo) printk foo
-#else
-#define ESPDISC(foo)
-#endif
-
-#if defined(DEBUG_ESP_STATUS)
-#define ESPSTAT(foo) printk foo
-#else
-#define ESPSTAT(foo)
-#endif
-
-#if defined(DEBUG_ESP_PHASES)
-#define ESPPHASE(foo) printk foo
-#else
-#define ESPPHASE(foo)
-#endif
-
-#if defined(DEBUG_ESP_WORKBUS)
-#define ESPBUS(foo) printk foo
-#else
-#define ESPBUS(foo)
-#endif
-
-#if defined(DEBUG_ESP_IRQS)
-#define ESPIRQ(foo) printk foo
-#else
-#define ESPIRQ(foo)
-#endif
-
-#if defined(DEBUG_SDTR)
-#define ESPSDTR(foo) printk foo
-#else
-#define ESPSDTR(foo)
-#endif
-
-#if defined(DEBUG_ESP_MISC)
-#define ESPMISC(foo) printk foo
-#else
-#define ESPMISC(foo)
-#endif
-
-/* Command phase enumeration. */
-enum {
- not_issued = 0x00, /* Still in the issue_SC queue. */
-
- /* Various forms of selecting a target. */
-#define in_slct_mask 0x10
- in_slct_norm = 0x10, /* ESP is arbitrating, normal selection */
- in_slct_stop = 0x11, /* ESP will select, then stop with IRQ */
- in_slct_msg = 0x12, /* select, then send a message */
- in_slct_tag = 0x13, /* select and send tagged queue msg */
- in_slct_sneg = 0x14, /* select and acquire sync capabilities */
-
- /* Any post selection activity. */
-#define in_phases_mask 0x20
- in_datain = 0x20, /* Data is transferring from the bus */
- in_dataout = 0x21, /* Data is transferring to the bus */
- in_data_done = 0x22, /* Last DMA data operation done (maybe) */
- in_msgin = 0x23, /* Eating message from target */
- in_msgincont = 0x24, /* Eating more msg bytes from target */
- in_msgindone = 0x25, /* Decide what to do with what we got */
- in_msgout = 0x26, /* Sending message to target */
- in_msgoutdone = 0x27, /* Done sending msg out */
- in_cmdbegin = 0x28, /* Sending cmd after abnormal selection */
- in_cmdend = 0x29, /* Done sending slow cmd */
- in_status = 0x2a, /* Was in status phase, finishing cmd */
- in_freeing = 0x2b, /* freeing the bus for cmd cmplt or disc */
- in_the_dark = 0x2c, /* Don't know what bus phase we are in */
-
- /* Special states, ie. not normal bus transitions... */
-#define in_spec_mask 0x80
- in_abortone = 0x80, /* Aborting one command currently */
- in_abortall = 0x81, /* Blowing away all commands we have */
- in_resetdev = 0x82, /* SCSI target reset in progress */
- in_resetbus = 0x83, /* SCSI bus reset in progress */
- in_tgterror = 0x84, /* Target did something stupid */
-};
-
-enum {
- /* Zero has special meaning, see skipahead[12]. */
-/*0*/ do_never,
-
-/*1*/ do_phase_determine,
-/*2*/ do_reset_bus,
-/*3*/ do_reset_complete,
-/*4*/ do_work_bus,
-/*5*/ do_intr_end
-};
-
-/* Forward declarations. */
-static irqreturn_t esp_intr(int irq, void *dev_id);
-
-/* Debugging routines */
-struct esp_cmdstrings {
- u8 cmdchar;
- char *text;
-} esp_cmd_strings[] = {
- /* Miscellaneous */
- { ESP_CMD_NULL, "ESP_NOP", },
- { ESP_CMD_FLUSH, "FIFO_FLUSH", },
- { ESP_CMD_RC, "RSTESP", },
- { ESP_CMD_RS, "RSTSCSI", },
- /* Disconnected State Group */
- { ESP_CMD_RSEL, "RESLCTSEQ", },
- { ESP_CMD_SEL, "SLCTNATN", },
- { ESP_CMD_SELA, "SLCTATN", },
- { ESP_CMD_SELAS, "SLCTATNSTOP", },
- { ESP_CMD_ESEL, "ENSLCTRESEL", },
- { ESP_CMD_DSEL, "DISSELRESEL", },
- { ESP_CMD_SA3, "SLCTATN3", },
- { ESP_CMD_RSEL3, "RESLCTSEQ", },
- /* Target State Group */
- { ESP_CMD_SMSG, "SNDMSG", },
- { ESP_CMD_SSTAT, "SNDSTATUS", },
- { ESP_CMD_SDATA, "SNDDATA", },
- { ESP_CMD_DSEQ, "DISCSEQ", },
- { ESP_CMD_TSEQ, "TERMSEQ", },
- { ESP_CMD_TCCSEQ, "TRGTCMDCOMPSEQ", },
- { ESP_CMD_DCNCT, "DISC", },
- { ESP_CMD_RMSG, "RCVMSG", },
- { ESP_CMD_RCMD, "RCVCMD", },
- { ESP_CMD_RDATA, "RCVDATA", },
- { ESP_CMD_RCSEQ, "RCVCMDSEQ", },
- /* Initiator State Group */
- { ESP_CMD_TI, "TRANSINFO", },
- { ESP_CMD_ICCSEQ, "INICMDSEQCOMP", },
- { ESP_CMD_MOK, "MSGACCEPTED", },
- { ESP_CMD_TPAD, "TPAD", },
- { ESP_CMD_SATN, "SATN", },
- { ESP_CMD_RATN, "RATN", },
-};
-#define NUM_ESP_COMMANDS ((sizeof(esp_cmd_strings)) / (sizeof(struct esp_cmdstrings)))
-
-/* Print textual representation of an ESP command */
-static inline void esp_print_cmd(u8 espcmd)
-{
- u8 dma_bit = espcmd & ESP_CMD_DMA;
- int i;
-
- espcmd &= ~dma_bit;
- for (i = 0; i < NUM_ESP_COMMANDS; i++)
- if (esp_cmd_strings[i].cmdchar == espcmd)
- break;
- if (i == NUM_ESP_COMMANDS)
- printk("ESP_Unknown");
- else
- printk("%s%s", esp_cmd_strings[i].text,
- ((dma_bit) ? "+DMA" : ""));
-}
-
-/* Print the status register's value */
-static inline void esp_print_statreg(u8 statreg)
-{
- u8 phase;
-
- printk("STATUS<");
- phase = statreg & ESP_STAT_PMASK;
- printk("%s,", (phase == ESP_DOP ? "DATA-OUT" :
- (phase == ESP_DIP ? "DATA-IN" :
- (phase == ESP_CMDP ? "COMMAND" :
- (phase == ESP_STATP ? "STATUS" :
- (phase == ESP_MOP ? "MSG-OUT" :
- (phase == ESP_MIP ? "MSG_IN" :
- "unknown")))))));
- if (statreg & ESP_STAT_TDONE)
- printk("TRANS_DONE,");
- if (statreg & ESP_STAT_TCNT)
- printk("TCOUNT_ZERO,");
- if (statreg & ESP_STAT_PERR)
- printk("P_ERROR,");
- if (statreg & ESP_STAT_SPAM)
- printk("SPAM,");
- if (statreg & ESP_STAT_INTR)
- printk("IRQ,");
- printk(">");
-}
-
-/* Print the interrupt register's value */
-static inline void esp_print_ireg(u8 intreg)
-{
- printk("INTREG< ");
- if (intreg & ESP_INTR_S)
- printk("SLCT_NATN ");
- if (intreg & ESP_INTR_SATN)
- printk("SLCT_ATN ");
- if (intreg & ESP_INTR_RSEL)
- printk("RSLCT ");
- if (intreg & ESP_INTR_FDONE)
- printk("FDONE ");
- if (intreg & ESP_INTR_BSERV)
- printk("BSERV ");
- if (intreg & ESP_INTR_DC)
- printk("DISCNCT ");
- if (intreg & ESP_INTR_IC)
- printk("ILL_CMD ");
- if (intreg & ESP_INTR_SR)
- printk("SCSI_BUS_RESET ");
- printk(">");
-}
-
-/* Print the sequence step registers contents */
-static inline void esp_print_seqreg(u8 stepreg)
-{
- stepreg &= ESP_STEP_VBITS;
- printk("STEP<%s>",
- (stepreg == ESP_STEP_ASEL ? "SLCT_ARB_CMPLT" :
- (stepreg == ESP_STEP_SID ? "1BYTE_MSG_SENT" :
- (stepreg == ESP_STEP_NCMD ? "NOT_IN_CMD_PHASE" :
- (stepreg == ESP_STEP_PPC ? "CMD_BYTES_LOST" :
- (stepreg == ESP_STEP_FINI4 ? "CMD_SENT_OK" :
- "UNKNOWN"))))));
-}
-
-static char *phase_string(int phase)
-{
- switch (phase) {
- case not_issued:
- return "UNISSUED";
- case in_slct_norm:
- return "SLCTNORM";
- case in_slct_stop:
- return "SLCTSTOP";
- case in_slct_msg:
- return "SLCTMSG";
- case in_slct_tag:
- return "SLCTTAG";
- case in_slct_sneg:
- return "SLCTSNEG";
- case in_datain:
- return "DATAIN";
- case in_dataout:
- return "DATAOUT";
- case in_data_done:
- return "DATADONE";
- case in_msgin:
- return "MSGIN";
- case in_msgincont:
- return "MSGINCONT";
- case in_msgindone:
- return "MSGINDONE";
- case in_msgout:
- return "MSGOUT";
- case in_msgoutdone:
- return "MSGOUTDONE";
- case in_cmdbegin:
- return "CMDBEGIN";
- case in_cmdend:
- return "CMDEND";
- case in_status:
- return "STATUS";
- case in_freeing:
- return "FREEING";
- case in_the_dark:
- return "CLUELESS";
- case in_abortone:
- return "ABORTONE";
- case in_abortall:
- return "ABORTALL";
- case in_resetdev:
- return "RESETDEV";
- case in_resetbus:
- return "RESETBUS";
- case in_tgterror:
- return "TGTERROR";
- default:
- return "UNKNOWN";
- };
-}
-
-#ifdef DEBUG_STATE_MACHINE
-static inline void esp_advance_phase(struct scsi_cmnd *s, int newphase)
-{
- ESPLOG(("<%s>", phase_string(newphase)));
- s->SCp.sent_command = s->SCp.phase;
- s->SCp.phase = newphase;
-}
-#else
-#define esp_advance_phase(__s, __newphase) \
- (__s)->SCp.sent_command = (__s)->SCp.phase; \
- (__s)->SCp.phase = (__newphase);
-#endif
-
-#ifdef DEBUG_ESP_CMDS
-static inline void esp_cmd(struct esp *esp, u8 cmd)
-{
- esp->espcmdlog[esp->espcmdent] = cmd;
- esp->espcmdent = (esp->espcmdent + 1) & 31;
- sbus_writeb(cmd, esp->eregs + ESP_CMD);
-}
-#else
-#define esp_cmd(__esp, __cmd) \
- sbus_writeb((__cmd), ((__esp)->eregs) + ESP_CMD)
-#endif
-
-#define ESP_INTSOFF(__dregs) \
- sbus_writel(sbus_readl((__dregs)+DMA_CSR)&~(DMA_INT_ENAB), (__dregs)+DMA_CSR)
-#define ESP_INTSON(__dregs) \
- sbus_writel(sbus_readl((__dregs)+DMA_CSR)|DMA_INT_ENAB, (__dregs)+DMA_CSR)
-#define ESP_IRQ_P(__dregs) \
- (sbus_readl((__dregs)+DMA_CSR) & (DMA_HNDL_INTR|DMA_HNDL_ERROR))
-
-/* How we use the various Linux SCSI data structures for operation.
- *
- * struct scsi_cmnd:
- *
- * We keep track of the synchronous capabilities of a target
- * in the device member, using sync_min_period and
- * sync_max_offset. These are the values we directly write
- * into the ESP registers while running a command. If offset
- * is zero the ESP will use asynchronous transfers.
- * If the borken flag is set we assume we shouldn't even bother
- * trying to negotiate for synchronous transfer as this target
- * is really stupid. If we notice the target is dropping the
- * bus, and we have been allowing it to disconnect, we clear
- * the disconnect flag.
- */
-
-
-/* Manipulation of the ESP command queues. Thanks to the aha152x driver
- * and its author, Juergen E. Fischer, for the methods used here.
- * Note that these are per-ESP queues, not global queues like
- * the aha152x driver uses.
- */
-static inline void append_SC(struct scsi_cmnd **SC, struct scsi_cmnd *new_SC)
-{
- struct scsi_cmnd *end;
-
- new_SC->host_scribble = (unsigned char *) NULL;
- if (!*SC)
- *SC = new_SC;
- else {
- for (end=*SC;end->host_scribble;end=(struct scsi_cmnd *)end->host_scribble)
- ;
- end->host_scribble = (unsigned char *) new_SC;
- }
-}
-
-static inline void prepend_SC(struct scsi_cmnd **SC, struct scsi_cmnd *new_SC)
-{
- new_SC->host_scribble = (unsigned char *) *SC;
- *SC = new_SC;
-}
-
-static inline struct scsi_cmnd *remove_first_SC(struct scsi_cmnd **SC)
-{
- struct scsi_cmnd *ptr;
- ptr = *SC;
- if (ptr)
- *SC = (struct scsi_cmnd *) (*SC)->host_scribble;
- return ptr;
-}
-
-static inline struct scsi_cmnd *remove_SC(struct scsi_cmnd **SC, int target, int lun)
-{
- struct scsi_cmnd *ptr, *prev;
-
- for (ptr = *SC, prev = NULL;
- ptr && ((ptr->device->id != target) || (ptr->device->lun != lun));
- prev = ptr, ptr = (struct scsi_cmnd *) ptr->host_scribble)
- ;
- if (ptr) {
- if (prev)
- prev->host_scribble=ptr->host_scribble;
- else
- *SC=(struct scsi_cmnd *)ptr->host_scribble;
- }
- return ptr;
-}
-
-/* Resetting various pieces of the ESP scsi driver chipset/buses. */
-static void esp_reset_dma(struct esp *esp)
-{
- int can_do_burst16, can_do_burst32, can_do_burst64;
- int can_do_sbus64;
- u32 tmp;
-
- can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
- can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
- can_do_burst64 = 0;
- can_do_sbus64 = 0;
- if (sbus_can_dma_64bit(esp->sdev))
- can_do_sbus64 = 1;
- if (sbus_can_burst64(esp->sdev))
- can_do_burst64 = (esp->bursts & DMA_BURST64) != 0;
-
- /* Punt the DVMA into a known state. */
- if (esp->dma->revision != dvmahme) {
- tmp = sbus_readl(esp->dregs + DMA_CSR);
- sbus_writel(tmp | DMA_RST_SCSI, esp->dregs + DMA_CSR);
- sbus_writel(tmp & ~DMA_RST_SCSI, esp->dregs + DMA_CSR);
- }
- switch (esp->dma->revision) {
- case dvmahme:
- /* This is the HME DVMA gate array. */
-
- sbus_writel(DMA_RESET_FAS366, esp->dregs + DMA_CSR);
- sbus_writel(DMA_RST_SCSI, esp->dregs + DMA_CSR);
-
- esp->prev_hme_dmacsr = (DMA_PARITY_OFF|DMA_2CLKS|DMA_SCSI_DISAB|DMA_INT_ENAB);
- esp->prev_hme_dmacsr &= ~(DMA_ENABLE|DMA_ST_WRITE|DMA_BRST_SZ);
-
- if (can_do_burst64)
- esp->prev_hme_dmacsr |= DMA_BRST64;
- else if (can_do_burst32)
- esp->prev_hme_dmacsr |= DMA_BRST32;
-
- if (can_do_sbus64) {
- esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
- sbus_set_sbus64(esp->sdev, esp->bursts);
- }
-
- /* This chip is horrible. */
- while (sbus_readl(esp->dregs + DMA_CSR) & DMA_PEND_READ)
- udelay(1);
-
- sbus_writel(0, esp->dregs + DMA_CSR);
- sbus_writel(esp->prev_hme_dmacsr, esp->dregs + DMA_CSR);
-
- /* This is necessary to avoid having the SCSI channel
- * engine lock up on us.
- */
- sbus_writel(0, esp->dregs + DMA_ADDR);
-
- break;
- case dvmarev2:
- /* This is the gate array found in the sun4m
- * NCR SBUS I/O subsystem.
- */
- if (esp->erev != esp100) {
- tmp = sbus_readl(esp->dregs + DMA_CSR);
- sbus_writel(tmp | DMA_3CLKS, esp->dregs + DMA_CSR);
- }
- break;
- case dvmarev3:
- tmp = sbus_readl(esp->dregs + DMA_CSR);
- tmp &= ~DMA_3CLKS;
- tmp |= DMA_2CLKS;
- if (can_do_burst32) {
- tmp &= ~DMA_BRST_SZ;
- tmp |= DMA_BRST32;
- }
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- break;
- case dvmaesc1:
- /* This is the DMA unit found on SCSI/Ether cards. */
- tmp = sbus_readl(esp->dregs + DMA_CSR);
- tmp |= DMA_ADD_ENABLE;
- tmp &= ~DMA_BCNT_ENAB;
- if (!can_do_burst32 && can_do_burst16) {
- tmp |= DMA_ESC_BURST;
- } else {
- tmp &= ~(DMA_ESC_BURST);
- }
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- break;
- default:
- break;
- };
- ESP_INTSON(esp->dregs);
-}
-
-/* Reset the ESP chip, _not_ the SCSI bus. */
-static void __init esp_reset_esp(struct esp *esp)
-{
- u8 family_code, version;
- int i;
-
- /* Now reset the ESP chip */
- esp_cmd(esp, ESP_CMD_RC);
- esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
- esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
-
- /* Reload the configuration registers */
- sbus_writeb(esp->cfact, esp->eregs + ESP_CFACT);
- esp->prev_stp = 0;
- sbus_writeb(esp->prev_stp, esp->eregs + ESP_STP);
- esp->prev_soff = 0;
- sbus_writeb(esp->prev_soff, esp->eregs + ESP_SOFF);
- sbus_writeb(esp->neg_defp, esp->eregs + ESP_TIMEO);
-
- /* This is the only point at which it is reliable to read
- * the ID-code for a fast ESP chip variants.
- */
- esp->max_period = ((35 * esp->ccycle) / 1000);
- if (esp->erev == fast) {
- version = sbus_readb(esp->eregs + ESP_UID);
- family_code = (version & 0xf8) >> 3;
- if (family_code == 0x02)
- esp->erev = fas236;
- else if (family_code == 0x0a)
- esp->erev = fashme; /* Version is usually '5'. */
- else
- esp->erev = fas100a;
- ESPMISC(("esp%d: FAST chip is %s (family=%d, version=%d)\n",
- esp->esp_id,
- (esp->erev == fas236) ? "fas236" :
- ((esp->erev == fas100a) ? "fas100a" :
- "fasHME"), family_code, (version & 7)));
-
- esp->min_period = ((4 * esp->ccycle) / 1000);
- } else {
- esp->min_period = ((5 * esp->ccycle) / 1000);
- }
- esp->max_period = (esp->max_period + 3)>>2;
- esp->min_period = (esp->min_period + 3)>>2;
-
- sbus_writeb(esp->config1, esp->eregs + ESP_CFG1);
- switch (esp->erev) {
- case esp100:
- /* nothing to do */
- break;
- case esp100a:
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
- break;
- case esp236:
- /* Slow 236 */
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
- esp->prev_cfg3 = esp->config3[0];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- break;
- case fashme:
- esp->config2 |= (ESP_CONFIG2_HME32 | ESP_CONFIG2_HMEFENAB);
- /* fallthrough... */
- case fas236:
- /* Fast 236 or HME */
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
- for (i = 0; i < 16; i++) {
- if (esp->erev == fashme) {
- u8 cfg3;
-
- cfg3 = ESP_CONFIG3_FCLOCK | ESP_CONFIG3_OBPUSH;
- if (esp->scsi_id >= 8)
- cfg3 |= ESP_CONFIG3_IDBIT3;
- esp->config3[i] |= cfg3;
- } else {
- esp->config3[i] |= ESP_CONFIG3_FCLK;
- }
- }
- esp->prev_cfg3 = esp->config3[0];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- if (esp->erev == fashme) {
- esp->radelay = 80;
- } else {
- if (esp->diff)
- esp->radelay = 0;
- else
- esp->radelay = 96;
- }
- break;
- case fas100a:
- /* Fast 100a */
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
- for (i = 0; i < 16; i++)
- esp->config3[i] |= ESP_CONFIG3_FCLOCK;
- esp->prev_cfg3 = esp->config3[0];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- esp->radelay = 32;
- break;
- default:
- panic("esp: what could it be... I wonder...");
- break;
- };
-
- /* Eat any bitrot in the chip */
- sbus_readb(esp->eregs + ESP_INTRPT);
- udelay(100);
-}
-
-/* This places the ESP into a known state at boot time. */
-static void __init esp_bootup_reset(struct esp *esp)
-{
- u8 tmp;
-
- /* Reset the DMA */
- esp_reset_dma(esp);
-
- /* Reset the ESP */
- esp_reset_esp(esp);
-
- /* Reset the SCSI bus, but tell ESP not to generate an irq */
- tmp = sbus_readb(esp->eregs + ESP_CFG1);
- tmp |= ESP_CONFIG1_SRRDISAB;
- sbus_writeb(tmp, esp->eregs + ESP_CFG1);
-
- esp_cmd(esp, ESP_CMD_RS);
- udelay(400);
-
- sbus_writeb(esp->config1, esp->eregs + ESP_CFG1);
-
- /* Eat any bitrot in the chip and we are done... */
- sbus_readb(esp->eregs + ESP_INTRPT);
-}
-
-static int __init esp_find_dvma(struct esp *esp, struct sbus_dev *dma_sdev)
-{
- struct sbus_dev *sdev = esp->sdev;
- struct sbus_dma *dma;
-
- if (dma_sdev != NULL) {
- for_each_dvma(dma) {
- if (dma->sdev == dma_sdev)
- break;
- }
- } else {
- for_each_dvma(dma) {
- /* If allocated already, can't use it. */
- if (dma->allocated)
- continue;
-
- if (dma->sdev == NULL)
- break;
-
- /* If bus + slot are the same and it has the
- * correct OBP name, it's ours.
- */
- if (sdev->bus == dma->sdev->bus &&
- sdev->slot == dma->sdev->slot &&
- (!strcmp(dma->sdev->prom_name, "dma") ||
- !strcmp(dma->sdev->prom_name, "espdma")))
- break;
- }
- }
-
- /* If we don't know how to handle the dvma,
- * do not use this device.
- */
- if (dma == NULL) {
- printk("Cannot find dvma for ESP%d's SCSI\n", esp->esp_id);
- return -1;
- }
- if (dma->allocated) {
- printk("esp%d: can't use my espdma\n", esp->esp_id);
- return -1;
- }
- dma->allocated = 1;
- esp->dma = dma;
- esp->dregs = dma->regs;
-
- return 0;
-}
-
-static int __init esp_map_regs(struct esp *esp, int hme)
-{
- struct sbus_dev *sdev = esp->sdev;
- struct resource *res;
-
- /* On HME, two reg sets exist, first is DVMA,
- * second is ESP registers.
- */
- if (hme)
- res = &sdev->resource[1];
- else
- res = &sdev->resource[0];
-
- esp->eregs = sbus_ioremap(res, 0, ESP_REG_SIZE, "ESP Registers");
-
- if (esp->eregs == 0)
- return -1;
- return 0;
-}
-
-static int __init esp_map_cmdarea(struct esp *esp)
-{
- struct sbus_dev *sdev = esp->sdev;
-
- esp->esp_command = sbus_alloc_consistent(sdev, 16,
- &esp->esp_command_dvma);
- if (esp->esp_command == NULL ||
- esp->esp_command_dvma == 0)
- return -1;
- return 0;
-}
-
-static int __init esp_register_irq(struct esp *esp)
-{
- esp->ehost->irq = esp->irq = esp->sdev->irqs[0];
-
- /* We used to try various overly-clever things to
- * reduce the interrupt processing overhead on
- * sun4c/sun4m when multiple ESP's shared the
- * same IRQ. It was too complex and messy to
- * sanely maintain.
- */
- if (request_irq(esp->ehost->irq, esp_intr,
- IRQF_SHARED, "ESP SCSI", esp)) {
- printk("esp%d: Cannot acquire irq line\n",
- esp->esp_id);
- return -1;
- }
-
- printk("esp%d: IRQ %d ", esp->esp_id,
- esp->ehost->irq);
-
- return 0;
-}
-
-static void __init esp_get_scsi_id(struct esp *esp)
-{
- struct sbus_dev *sdev = esp->sdev;
- struct device_node *dp = sdev->ofdev.node;
-
- esp->scsi_id = of_getintprop_default(dp,
- "initiator-id",
- -1);
- if (esp->scsi_id == -1)
- esp->scsi_id = of_getintprop_default(dp,
- "scsi-initiator-id",
- -1);
- if (esp->scsi_id == -1)
- esp->scsi_id = (sdev->bus == NULL) ? 7 :
- of_getintprop_default(sdev->bus->ofdev.node,
- "scsi-initiator-id",
- 7);
- esp->ehost->this_id = esp->scsi_id;
- esp->scsi_id_mask = (1 << esp->scsi_id);
-
-}
-
-static void __init esp_get_clock_params(struct esp *esp)
-{
- struct sbus_dev *sdev = esp->sdev;
- int prom_node = esp->prom_node;
- int sbus_prom_node;
- unsigned int fmhz;
- u8 ccf;
-
- if (sdev != NULL && sdev->bus != NULL)
- sbus_prom_node = sdev->bus->prom_node;
- else
- sbus_prom_node = 0;
-
- /* This is getting messy but it has to be done
- * correctly or else you get weird behavior all
- * over the place. We are trying to basically
- * figure out three pieces of information.
- *
- * a) Clock Conversion Factor
- *
- * This is a representation of the input
- * crystal clock frequency going into the
- * ESP on this machine. Any operation whose
- * timing is longer than 400ns depends on this
- * value being correct. For example, you'll
- * get blips for arbitration/selection during
- * high load or with multiple targets if this
- * is not set correctly.
- *
- * b) Selection Time-Out
- *
- * The ESP isn't very bright and will arbitrate
- * for the bus and try to select a target
- * forever if you let it. This value tells
- * the ESP when it has taken too long to
- * negotiate and that it should interrupt
- * the CPU so we can see what happened.
- * The value is computed as follows (from
- * NCR/Symbios chip docs).
- *
- * (Time Out Period) * (Input Clock)
- * STO = ----------------------------------
- * (8192) * (Clock Conversion Factor)
- *
- * You usually want the time out period to be
- * around 250ms, I think we'll set it a little
- * bit higher to account for fully loaded SCSI
- * bus's and slow devices that don't respond so
- * quickly to selection attempts. (yeah, I know
- * this is out of spec. but there is a lot of
- * buggy pieces of firmware out there so bite me)
- *
- * c) Imperical constants for synchronous offset
- * and transfer period register values
- *
- * This entails the smallest and largest sync
- * period we could ever handle on this ESP.
- */
-
- fmhz = prom_getintdefault(prom_node, "clock-frequency", -1);
- if (fmhz == -1)
- fmhz = (!sbus_prom_node) ? 0 :
- prom_getintdefault(sbus_prom_node, "clock-frequency", -1);
-
- if (fmhz <= (5000000))
- ccf = 0;
- else
- ccf = (((5000000 - 1) + (fmhz))/(5000000));
-
- if (!ccf || ccf > 8) {
- /* If we can't find anything reasonable,
- * just assume 20MHZ. This is the clock
- * frequency of the older sun4c's where I've
- * been unable to find the clock-frequency
- * PROM property. All other machines provide
- * useful values it seems.
- */
- ccf = ESP_CCF_F4;
- fmhz = (20000000);
- }
-
- if (ccf == (ESP_CCF_F7 + 1))
- esp->cfact = ESP_CCF_F0;
- else if (ccf == ESP_CCF_NEVER)
- esp->cfact = ESP_CCF_F2;
- else
- esp->cfact = ccf;
- esp->raw_cfact = ccf;
-
- esp->cfreq = fmhz;
- esp->ccycle = ESP_MHZ_TO_CYCLE(fmhz);
- esp->ctick = ESP_TICK(ccf, esp->ccycle);
- esp->neg_defp = ESP_NEG_DEFP(fmhz, ccf);
- esp->sync_defp = SYNC_DEFP_SLOW;
-
- printk("SCSI ID %d Clk %dMHz CCYC=%d CCF=%d TOut %d ",
- esp->scsi_id, (fmhz / 1000000),
- (int)esp->ccycle, (int)ccf, (int) esp->neg_defp);
-}
-
-static void __init esp_get_bursts(struct esp *esp, struct sbus_dev *dma)
-{
- struct sbus_dev *sdev = esp->sdev;
- u8 bursts;
-
- bursts = prom_getintdefault(esp->prom_node, "burst-sizes", 0xff);
-
- if (dma) {
- u8 tmp = prom_getintdefault(dma->prom_node,
- "burst-sizes", 0xff);
- if (tmp != 0xff)
- bursts &= tmp;
- }
-
- if (sdev->bus) {
- u8 tmp = prom_getintdefault(sdev->bus->prom_node,
- "burst-sizes", 0xff);
- if (tmp != 0xff)
- bursts &= tmp;
- }
-
- if (bursts == 0xff ||
- (bursts & DMA_BURST16) == 0 ||
- (bursts & DMA_BURST32) == 0)
- bursts = (DMA_BURST32 - 1);
-
- esp->bursts = bursts;
-}
-
-static void __init esp_get_revision(struct esp *esp)
-{
- u8 tmp;
-
- esp->config1 = (ESP_CONFIG1_PENABLE | (esp->scsi_id & 7));
- esp->config2 = (ESP_CONFIG2_SCSI2ENAB | ESP_CONFIG2_REGPARITY);
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
-
- tmp = sbus_readb(esp->eregs + ESP_CFG2);
- tmp &= ~ESP_CONFIG2_MAGIC;
- if (tmp != (ESP_CONFIG2_SCSI2ENAB | ESP_CONFIG2_REGPARITY)) {
- /* If what we write to cfg2 does not come back, cfg2
- * is not implemented, therefore this must be a plain
- * esp100.
- */
- esp->erev = esp100;
- printk("NCR53C90(esp100)\n");
- } else {
- esp->config2 = 0;
- esp->prev_cfg3 = esp->config3[0] = 5;
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
- sbus_writeb(0, esp->eregs + ESP_CFG3);
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
-
- tmp = sbus_readb(esp->eregs + ESP_CFG3);
- if (tmp != 5) {
- /* The cfg2 register is implemented, however
- * cfg3 is not, must be esp100a.
- */
- esp->erev = esp100a;
- printk("NCR53C90A(esp100a)\n");
- } else {
- int target;
-
- for (target = 0; target < 16; target++)
- esp->config3[target] = 0;
- esp->prev_cfg3 = 0;
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
-
- /* All of cfg{1,2,3} implemented, must be one of
- * the fas variants, figure out which one.
- */
- if (esp->raw_cfact > ESP_CCF_F5) {
- esp->erev = fast;
- esp->sync_defp = SYNC_DEFP_FAST;
- printk("NCR53C9XF(espfast)\n");
- } else {
- esp->erev = esp236;
- printk("NCR53C9x(esp236)\n");
- }
- esp->config2 = 0;
- sbus_writeb(esp->config2, esp->eregs + ESP_CFG2);
- }
- }
-}
-
-static void __init esp_init_swstate(struct esp *esp)
-{
- int i;
-
- /* Command queues... */
- esp->current_SC = NULL;
- esp->disconnected_SC = NULL;
- esp->issue_SC = NULL;
-
- /* Target and current command state... */
- esp->targets_present = 0;
- esp->resetting_bus = 0;
- esp->snip = 0;
-
- init_waitqueue_head(&esp->reset_queue);
-
- /* Debugging... */
- for(i = 0; i < 32; i++)
- esp->espcmdlog[i] = 0;
- esp->espcmdent = 0;
-
- /* MSG phase state... */
- for(i = 0; i < 16; i++) {
- esp->cur_msgout[i] = 0;
- esp->cur_msgin[i] = 0;
- }
- esp->prevmsgout = esp->prevmsgin = 0;
- esp->msgout_len = esp->msgin_len = 0;
-
- /* Clear the one behind caches to hold unmatchable values. */
- esp->prev_soff = esp->prev_stp = esp->prev_cfg3 = 0xff;
- esp->prev_hme_dmacsr = 0xffffffff;
-}
-
-static int __init detect_one_esp(struct scsi_host_template *tpnt,
- struct device *dev,
- struct sbus_dev *esp_dev,
- struct sbus_dev *espdma,
- struct sbus_bus *sbus,
- int hme)
-{
- static int instance;
- struct Scsi_Host *esp_host = scsi_host_alloc(tpnt, sizeof(struct esp));
- struct esp *esp;
-
- if (!esp_host)
- return -ENOMEM;
-
- if (hme)
- esp_host->max_id = 16;
- esp = (struct esp *) esp_host->hostdata;
- esp->ehost = esp_host;
- esp->sdev = esp_dev;
- esp->esp_id = instance;
- esp->prom_node = esp_dev->prom_node;
- prom_getstring(esp->prom_node, "name", esp->prom_name,
- sizeof(esp->prom_name));
-
- if (esp_find_dvma(esp, espdma) < 0)
- goto fail_unlink;
- if (esp_map_regs(esp, hme) < 0) {
- printk("ESP registers unmappable");
- goto fail_dvma_release;
- }
- if (esp_map_cmdarea(esp) < 0) {
- printk("ESP DVMA transport area unmappable");
- goto fail_unmap_regs;
- }
- if (esp_register_irq(esp) < 0)
- goto fail_unmap_cmdarea;
-
- esp_get_scsi_id(esp);
-
- esp->diff = prom_getbool(esp->prom_node, "differential");
- if (esp->diff)
- printk("Differential ");
-
- esp_get_clock_params(esp);
- esp_get_bursts(esp, espdma);
- esp_get_revision(esp);
- esp_init_swstate(esp);
-
- esp_bootup_reset(esp);
-
- if (scsi_add_host(esp_host, dev))
- goto fail_free_irq;
-
- dev_set_drvdata(&esp_dev->ofdev.dev, esp);
-
- scsi_scan_host(esp_host);
- instance++;
-
- return 0;
-
-fail_free_irq:
- free_irq(esp->ehost->irq, esp);
-
-fail_unmap_cmdarea:
- sbus_free_consistent(esp->sdev, 16,
- (void *) esp->esp_command,
- esp->esp_command_dvma);
-
-fail_unmap_regs:
- sbus_iounmap(esp->eregs, ESP_REG_SIZE);
-
-fail_dvma_release:
- esp->dma->allocated = 0;
-
-fail_unlink:
- scsi_host_put(esp_host);
- return -1;
-}
-
-/* Detecting ESP chips on the machine. This is the simple and easy
- * version.
- */
-static int __devexit esp_remove_common(struct esp *esp)
-{
- unsigned int irq = esp->ehost->irq;
-
- scsi_remove_host(esp->ehost);
-
- ESP_INTSOFF(esp->dregs);
-#if 0
- esp_reset_dma(esp);
- esp_reset_esp(esp);
-#endif
-
- free_irq(irq, esp);
- sbus_free_consistent(esp->sdev, 16,
- (void *) esp->esp_command, esp->esp_command_dvma);
- sbus_iounmap(esp->eregs, ESP_REG_SIZE);
- esp->dma->allocated = 0;
-
- scsi_host_put(esp->ehost);
-
- return 0;
-}
-
-
-#ifdef CONFIG_SUN4
-
-#include <asm/sun4paddr.h>
-
-static struct sbus_dev sun4_esp_dev;
-
-static int __init esp_sun4_probe(struct scsi_host_template *tpnt)
-{
- if (sun4_esp_physaddr) {
- memset(&sun4_esp_dev, 0, sizeof(sun4_esp_dev));
- sun4_esp_dev.reg_addrs[0].phys_addr = sun4_esp_physaddr;
- sun4_esp_dev.irqs[0] = 4;
- sun4_esp_dev.resource[0].start = sun4_esp_physaddr;
- sun4_esp_dev.resource[0].end =
- sun4_esp_physaddr + ESP_REG_SIZE - 1;
- sun4_esp_dev.resource[0].flags = IORESOURCE_IO;
-
- return detect_one_esp(tpnt, NULL,
- &sun4_esp_dev, NULL, NULL, 0);
- }
- return 0;
-}
-
-static int __devexit esp_sun4_remove(void)
-{
- struct of_device *dev = &sun4_esp_dev.ofdev;
- struct esp *esp = dev_get_drvdata(&dev->dev);
-
- return esp_remove_common(esp);
-}
-
-#else /* !CONFIG_SUN4 */
-
-static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_device_id *match)
-{
- struct sbus_dev *sdev = to_sbus_device(&dev->dev);
- struct device_node *dp = dev->node;
- struct sbus_dev *dma_sdev = NULL;
- int hme = 0;
-
- if (dp->parent &&
- (!strcmp(dp->parent->name, "espdma") ||
- !strcmp(dp->parent->name, "dma")))
- dma_sdev = sdev->parent;
- else if (!strcmp(dp->name, "SUNW,fas")) {
- dma_sdev = sdev;
- hme = 1;
- }
-
- return detect_one_esp(match->data, &dev->dev,
- sdev, dma_sdev, sdev->bus, hme);
-}
-
-static int __devexit esp_sbus_remove(struct of_device *dev)
-{
- struct esp *esp = dev_get_drvdata(&dev->dev);
-
- return esp_remove_common(esp);
-}
-
-#endif /* !CONFIG_SUN4 */
-
-/* The info function will return whatever useful
- * information the developer sees fit. If not provided, then
- * the name field will be used instead.
- */
-static const char *esp_info(struct Scsi_Host *host)
-{
- struct esp *esp;
-
- esp = (struct esp *) host->hostdata;
- switch (esp->erev) {
- case esp100:
- return "Sparc ESP100 (NCR53C90)";
- case esp100a:
- return "Sparc ESP100A (NCR53C90A)";
- case esp236:
- return "Sparc ESP236";
- case fas236:
- return "Sparc ESP236-FAST";
- case fashme:
- return "Sparc ESP366-HME";
- case fas100a:
- return "Sparc ESP100A-FAST";
- default:
- return "Bogon ESP revision";
- };
-}
-
-/* From Wolfgang Stanglmeier's NCR scsi driver. */
-struct info_str
-{
- char *buffer;
- int length;
- int offset;
- int pos;
-};
-
-static void copy_mem_info(struct info_str *info, char *data, int len)
-{
- if (info->pos + len > info->length)
- len = info->length - info->pos;
-
- if (info->pos + len < info->offset) {
- info->pos += len;
- return;
- }
- if (info->pos < info->offset) {
- data += (info->offset - info->pos);
- len -= (info->offset - info->pos);
- }
-
- if (len > 0) {
- memcpy(info->buffer + info->pos, data, len);
- info->pos += len;
- }
-}
-
-static int copy_info(struct info_str *info, char *fmt, ...)
-{
- va_list args;
- char buf[81];
- int len;
-
- va_start(args, fmt);
- len = vsprintf(buf, fmt, args);
- va_end(args);
-
- copy_mem_info(info, buf, len);
- return len;
-}
-
-static int esp_host_info(struct esp *esp, char *ptr, off_t offset, int len)
-{
- struct scsi_device *sdev;
- struct info_str info;
- int i;
-
- info.buffer = ptr;
- info.length = len;
- info.offset = offset;
- info.pos = 0;
-
- copy_info(&info, "Sparc ESP Host Adapter:\n");
- copy_info(&info, "\tPROM node\t\t%08x\n", (unsigned int) esp->prom_node);
- copy_info(&info, "\tPROM name\t\t%s\n", esp->prom_name);
- copy_info(&info, "\tESP Model\t\t");
- switch (esp->erev) {
- case esp100:
- copy_info(&info, "ESP100\n");
- break;
- case esp100a:
- copy_info(&info, "ESP100A\n");
- break;
- case esp236:
- copy_info(&info, "ESP236\n");
- break;
- case fas236:
- copy_info(&info, "FAS236\n");
- break;
- case fas100a:
- copy_info(&info, "FAS100A\n");
- break;
- case fast:
- copy_info(&info, "FAST\n");
- break;
- case fashme:
- copy_info(&info, "Happy Meal FAS\n");
- break;
- case espunknown:
- default:
- copy_info(&info, "Unknown!\n");
- break;
- };
- copy_info(&info, "\tDMA Revision\t\t");
- switch (esp->dma->revision) {
- case dvmarev0:
- copy_info(&info, "Rev 0\n");
- break;
- case dvmaesc1:
- copy_info(&info, "ESC Rev 1\n");
- break;
- case dvmarev1:
- copy_info(&info, "Rev 1\n");
- break;
- case dvmarev2:
- copy_info(&info, "Rev 2\n");
- break;
- case dvmarev3:
- copy_info(&info, "Rev 3\n");
- break;
- case dvmarevplus:
- copy_info(&info, "Rev 1+\n");
- break;
- case dvmahme:
- copy_info(&info, "Rev HME/FAS\n");
- break;
- default:
- copy_info(&info, "Unknown!\n");
- break;
- };
- copy_info(&info, "\tLive Targets\t\t[ ");
- for (i = 0; i < 15; i++) {
- if (esp->targets_present & (1 << i))
- copy_info(&info, "%d ", i);
- }
- copy_info(&info, "]\n\n");
-
- /* Now describe the state of each existing target. */
- copy_info(&info, "Target #\tconfig3\t\tSync Capabilities\tDisconnect\tWide\n");
-
- shost_for_each_device(sdev, esp->ehost) {
- struct esp_device *esp_dev = sdev->hostdata;
- uint id = sdev->id;
-
- if (!(esp->targets_present & (1 << id)))
- continue;
-
- copy_info(&info, "%d\t\t", id);
- copy_info(&info, "%08lx\t", esp->config3[id]);
- copy_info(&info, "[%02lx,%02lx]\t\t\t",
- esp_dev->sync_max_offset,
- esp_dev->sync_min_period);
- copy_info(&info, "%s\t\t",
- esp_dev->disconnect ? "yes" : "no");
- copy_info(&info, "%s\n",
- (esp->config3[id] & ESP_CONFIG3_EWIDE) ? "yes" : "no");
- }
- return info.pos > info.offset? info.pos - info.offset : 0;
-}
-
-/* ESP proc filesystem code. */
-static int esp_proc_info(struct Scsi_Host *host, char *buffer, char **start, off_t offset,
- int length, int inout)
-{
- struct esp *esp = (struct esp *) host->hostdata;
-
- if (inout)
- return -EINVAL; /* not yet */
-
- if (start)
- *start = buffer;
-
- return esp_host_info(esp, buffer, offset, length);
-}
-
-static void esp_get_dmabufs(struct esp *esp, struct scsi_cmnd *sp)
-{
- if (sp->use_sg == 0) {
- sp->SCp.this_residual = sp->request_bufflen;
- sp->SCp.buffer = (struct scatterlist *) sp->request_buffer;
- sp->SCp.buffers_residual = 0;
- if (sp->request_bufflen) {
- sp->SCp.have_data_in = sbus_map_single(esp->sdev, sp->SCp.buffer,
- sp->SCp.this_residual,
- sp->sc_data_direction);
- sp->SCp.ptr = (char *) ((unsigned long)sp->SCp.have_data_in);
- } else {
- sp->SCp.ptr = NULL;
- }
- } else {
- sp->SCp.buffer = (struct scatterlist *) sp->request_buffer;
- sp->SCp.buffers_residual = sbus_map_sg(esp->sdev,
- sp->SCp.buffer,
- sp->use_sg,
- sp->sc_data_direction);
- sp->SCp.this_residual = sg_dma_len(sp->SCp.buffer);
- sp->SCp.ptr = (char *) ((unsigned long)sg_dma_address(sp->SCp.buffer));
- }
-}
-
-static void esp_release_dmabufs(struct esp *esp, struct scsi_cmnd *sp)
-{
- if (sp->use_sg) {
- sbus_unmap_sg(esp->sdev, sp->request_buffer, sp->use_sg,
- sp->sc_data_direction);
- } else if (sp->request_bufflen) {
- sbus_unmap_single(esp->sdev,
- sp->SCp.have_data_in,
- sp->request_bufflen,
- sp->sc_data_direction);
- }
-}
-
-static void esp_restore_pointers(struct esp *esp, struct scsi_cmnd *sp)
-{
- struct esp_pointers *ep = &esp->data_pointers[sp->device->id];
-
- sp->SCp.ptr = ep->saved_ptr;
- sp->SCp.buffer = ep->saved_buffer;
- sp->SCp.this_residual = ep->saved_this_residual;
- sp->SCp.buffers_residual = ep->saved_buffers_residual;
-}
-
-static void esp_save_pointers(struct esp *esp, struct scsi_cmnd *sp)
-{
- struct esp_pointers *ep = &esp->data_pointers[sp->device->id];
-
- ep->saved_ptr = sp->SCp.ptr;
- ep->saved_buffer = sp->SCp.buffer;
- ep->saved_this_residual = sp->SCp.this_residual;
- ep->saved_buffers_residual = sp->SCp.buffers_residual;
-}
-
-/* Some rules:
- *
- * 1) Never ever panic while something is live on the bus.
- * If there is to be any chance of syncing the disks this
- * rule is to be obeyed.
- *
- * 2) Any target that causes a foul condition will no longer
- * have synchronous transfers done to it, no questions
- * asked.
- *
- * 3) Keep register accesses to a minimum. Think about some
- * day when we have Xbus machines this is running on and
- * the ESP chip is on the other end of the machine on a
- * different board from the cpu where this is running.
- */
-
-/* Fire off a command. We assume the bus is free and that the only
- * case where we could see an interrupt is where we have disconnected
- * commands active and they are trying to reselect us.
- */
-static inline void esp_check_cmd(struct esp *esp, struct scsi_cmnd *sp)
-{
- switch (sp->cmd_len) {
- case 6:
- case 10:
- case 12:
- esp->esp_slowcmd = 0;
- break;
-
- default:
- esp->esp_slowcmd = 1;
- esp->esp_scmdleft = sp->cmd_len;
- esp->esp_scmdp = &sp->cmnd[0];
- break;
- };
-}
-
-static inline void build_sync_nego_msg(struct esp *esp, int period, int offset)
-{
- esp->cur_msgout[0] = EXTENDED_MESSAGE;
- esp->cur_msgout[1] = 3;
- esp->cur_msgout[2] = EXTENDED_SDTR;
- esp->cur_msgout[3] = period;
- esp->cur_msgout[4] = offset;
- esp->msgout_len = 5;
-}
-
-/* SIZE is in bits, currently HME only supports 16 bit wide transfers. */
-static inline void build_wide_nego_msg(struct esp *esp, int size)
-{
- esp->cur_msgout[0] = EXTENDED_MESSAGE;
- esp->cur_msgout[1] = 2;
- esp->cur_msgout[2] = EXTENDED_WDTR;
- switch (size) {
- case 32:
- esp->cur_msgout[3] = 2;
- break;
- case 16:
- esp->cur_msgout[3] = 1;
- break;
- case 8:
- default:
- esp->cur_msgout[3] = 0;
- break;
- };
-
- esp->msgout_len = 4;
-}
-
-static void esp_exec_cmd(struct esp *esp)
-{
- struct scsi_cmnd *SCptr;
- struct scsi_device *SDptr;
- struct esp_device *esp_dev;
- volatile u8 *cmdp = esp->esp_command;
- u8 the_esp_command;
- int lun, target;
- int i;
-
- /* Hold off if we have disconnected commands and
- * an IRQ is showing...
- */
- if (esp->disconnected_SC && ESP_IRQ_P(esp->dregs))
- return;
-
- /* Grab first member of the issue queue. */
- SCptr = esp->current_SC = remove_first_SC(&esp->issue_SC);
-
- /* Safe to panic here because current_SC is null. */
- if (!SCptr)
- panic("esp: esp_exec_cmd and issue queue is NULL");
-
- SDptr = SCptr->device;
- esp_dev = SDptr->hostdata;
- lun = SCptr->device->lun;
- target = SCptr->device->id;
-
- esp->snip = 0;
- esp->msgout_len = 0;
-
- /* Send it out whole, or piece by piece? The ESP
- * only knows how to automatically send out 6, 10,
- * and 12 byte commands. I used to think that the
- * Linux SCSI code would never throw anything other
- * than that to us, but then again there is the
- * SCSI generic driver which can send us anything.
- */
- esp_check_cmd(esp, SCptr);
-
- /* If arbitration/selection is successful, the ESP will leave
- * ATN asserted, causing the target to go into message out
- * phase. The ESP will feed the target the identify and then
- * the target can only legally go to one of command,
- * datain/out, status, or message in phase, or stay in message
- * out phase (should we be trying to send a sync negotiation
- * message after the identify). It is not allowed to drop
- * BSY, but some buggy targets do and we check for this
- * condition in the selection complete code. Most of the time
- * we'll make the command bytes available to the ESP and it
- * will not interrupt us until it finishes command phase, we
- * cannot do this for command sizes the ESP does not
- * understand and in this case we'll get interrupted right
- * when the target goes into command phase.
- *
- * It is absolutely _illegal_ in the presence of SCSI-2 devices
- * to use the ESP select w/o ATN command. When SCSI-2 devices are
- * present on the bus we _must_ always go straight to message out
- * phase with an identify message for the target. Being that
- * selection attempts in SCSI-1 w/o ATN was an option, doing SCSI-2
- * selections should not confuse SCSI-1 we hope.
- */
-
- if (esp_dev->sync) {
- /* this targets sync is known */
-#ifndef __sparc_v9__
-do_sync_known:
-#endif
- if (esp_dev->disconnect)
- *cmdp++ = IDENTIFY(1, lun);
- else
- *cmdp++ = IDENTIFY(0, lun);
-
- if (esp->esp_slowcmd) {
- the_esp_command = (ESP_CMD_SELAS | ESP_CMD_DMA);
- esp_advance_phase(SCptr, in_slct_stop);
- } else {
- the_esp_command = (ESP_CMD_SELA | ESP_CMD_DMA);
- esp_advance_phase(SCptr, in_slct_norm);
- }
- } else if (!(esp->targets_present & (1<<target)) || !(esp_dev->disconnect)) {
- /* After the bootup SCSI code sends both the
- * TEST_UNIT_READY and INQUIRY commands we want
- * to at least attempt allowing the device to
- * disconnect.
- */
- ESPMISC(("esp: Selecting device for first time. target=%d "
- "lun=%d\n", target, SCptr->device->lun));
- if (!SDptr->borken && !esp_dev->disconnect)
- esp_dev->disconnect = 1;
-
- *cmdp++ = IDENTIFY(0, lun);
- esp->prevmsgout = NOP;
- esp_advance_phase(SCptr, in_slct_norm);
- the_esp_command = (ESP_CMD_SELA | ESP_CMD_DMA);
-
- /* Take no chances... */
- esp_dev->sync_max_offset = 0;
- esp_dev->sync_min_period = 0;
- } else {
- /* Sorry, I have had way too many problems with
- * various CDROM devices on ESP. -DaveM
- */
- int cdrom_hwbug_wkaround = 0;
-
-#ifndef __sparc_v9__
- /* Never allow disconnects or synchronous transfers on
- * SparcStation1 and SparcStation1+. Allowing those
- * to be enabled seems to lockup the machine completely.
- */
- if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) ||
- (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) {
- /* But we are nice and allow tapes and removable
- * disks (but not CDROMs) to disconnect.
- */
- if(SDptr->type == TYPE_TAPE ||
- (SDptr->type != TYPE_ROM && SDptr->removable))
- esp_dev->disconnect = 1;
- else
- esp_dev->disconnect = 0;
- esp_dev->sync_max_offset = 0;
- esp_dev->sync_min_period = 0;
- esp_dev->sync = 1;
- esp->snip = 0;
- goto do_sync_known;
- }
-#endif /* !(__sparc_v9__) */
-
- /* We've talked to this guy before,
- * but never negotiated. Let's try,
- * need to attempt WIDE first, before
- * sync nego, as per SCSI 2 standard.
- */
- if (esp->erev == fashme && !esp_dev->wide) {
- if (!SDptr->borken &&
- SDptr->type != TYPE_ROM &&
- SDptr->removable == 0) {
- build_wide_nego_msg(esp, 16);
- esp_dev->wide = 1;
- esp->wnip = 1;
- goto after_nego_msg_built;
- } else {
- esp_dev->wide = 1;
- /* Fall through and try sync. */
- }
- }
-
- if (!SDptr->borken) {
- if ((SDptr->type == TYPE_ROM)) {
- /* Nice try sucker... */
- ESPMISC(("esp%d: Disabling sync for buggy "
- "CDROM.\n", esp->esp_id));
- cdrom_hwbug_wkaround = 1;
- build_sync_nego_msg(esp, 0, 0);
- } else if (SDptr->removable != 0) {
- ESPMISC(("esp%d: Not negotiating sync/wide but "
- "allowing disconnect for removable media.\n",
- esp->esp_id));
- build_sync_nego_msg(esp, 0, 0);
- } else {
- build_sync_nego_msg(esp, esp->sync_defp, 15);
- }
- } else {
- build_sync_nego_msg(esp, 0, 0);
- }
- esp_dev->sync = 1;
- esp->snip = 1;
-
-after_nego_msg_built:
- /* A fix for broken SCSI1 targets, when they disconnect
- * they lock up the bus and confuse ESP. So disallow
- * disconnects for SCSI1 targets for now until we
- * find a better fix.
- *
- * Addendum: This is funny, I figured out what was going
- * on. The blotzed SCSI1 target would disconnect,
- * one of the other SCSI2 targets or both would be
- * disconnected as well. The SCSI1 target would
- * stay disconnected long enough that we start
- * up a command on one of the SCSI2 targets. As
- * the ESP is arbitrating for the bus the SCSI1
- * target begins to arbitrate as well to reselect
- * the ESP. The SCSI1 target refuses to drop it's
- * ID bit on the data bus even though the ESP is
- * at ID 7 and is the obvious winner for any
- * arbitration. The ESP is a poor sport and refuses
- * to lose arbitration, it will continue indefinitely
- * trying to arbitrate for the bus and can only be
- * stopped via a chip reset or SCSI bus reset.
- * Therefore _no_ disconnects for SCSI1 targets
- * thank you very much. ;-)
- */
- if(((SDptr->scsi_level < 3) &&
- (SDptr->type != TYPE_TAPE) &&
- SDptr->removable == 0) ||
- cdrom_hwbug_wkaround || SDptr->borken) {
- ESPMISC((KERN_INFO "esp%d: Disabling DISCONNECT for target %d "
- "lun %d\n", esp->esp_id, SCptr->device->id, SCptr->device->lun));
- esp_dev->disconnect = 0;
- *cmdp++ = IDENTIFY(0, lun);
- } else {
- *cmdp++ = IDENTIFY(1, lun);
- }
-
- /* ESP fifo is only so big...
- * Make this look like a slow command.
- */
- esp->esp_slowcmd = 1;
- esp->esp_scmdleft = SCptr->cmd_len;
- esp->esp_scmdp = &SCptr->cmnd[0];
-
- the_esp_command = (ESP_CMD_SELAS | ESP_CMD_DMA);
- esp_advance_phase(SCptr, in_slct_msg);
- }
-
- if (!esp->esp_slowcmd)
- for (i = 0; i < SCptr->cmd_len; i++)
- *cmdp++ = SCptr->cmnd[i];
-
- /* HME sucks... */
- if (esp->erev == fashme)
- sbus_writeb((target & 0xf) | (ESP_BUSID_RESELID | ESP_BUSID_CTR32BIT),
- esp->eregs + ESP_BUSID);
- else
- sbus_writeb(target & 7, esp->eregs + ESP_BUSID);
- if (esp->prev_soff != esp_dev->sync_max_offset ||
- esp->prev_stp != esp_dev->sync_min_period ||
- (esp->erev > esp100a &&
- esp->prev_cfg3 != esp->config3[target])) {
- esp->prev_soff = esp_dev->sync_max_offset;
- esp->prev_stp = esp_dev->sync_min_period;
- sbus_writeb(esp->prev_soff, esp->eregs + ESP_SOFF);
- sbus_writeb(esp->prev_stp, esp->eregs + ESP_STP);
- if (esp->erev > esp100a) {
- esp->prev_cfg3 = esp->config3[target];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- }
- }
- i = (cmdp - esp->esp_command);
-
- if (esp->erev == fashme) {
- esp_cmd(esp, ESP_CMD_FLUSH); /* Grrr! */
-
- /* Set up the DMA and HME counters */
- sbus_writeb(i, esp->eregs + ESP_TCLOW);
- sbus_writeb(0, esp->eregs + ESP_TCMED);
- sbus_writeb(0, esp->eregs + FAS_RLO);
- sbus_writeb(0, esp->eregs + FAS_RHI);
- esp_cmd(esp, the_esp_command);
-
- /* Talk about touchy hardware... */
- esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
- (DMA_SCSI_DISAB | DMA_ENABLE)) &
- ~(DMA_ST_WRITE));
- sbus_writel(16, esp->dregs + DMA_COUNT);
- sbus_writel(esp->esp_command_dvma, esp->dregs + DMA_ADDR);
- sbus_writel(esp->prev_hme_dmacsr, esp->dregs + DMA_CSR);
- } else {
- u32 tmp;
-
- /* Set up the DMA and ESP counters */
- sbus_writeb(i, esp->eregs + ESP_TCLOW);
- sbus_writeb(0, esp->eregs + ESP_TCMED);
- tmp = sbus_readl(esp->dregs + DMA_CSR);
- tmp &= ~DMA_ST_WRITE;
- tmp |= DMA_ENABLE;
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- if (esp->dma->revision == dvmaesc1) {
- if (i) /* Workaround ESC gate array SBUS rerun bug. */
- sbus_writel(PAGE_SIZE, esp->dregs + DMA_COUNT);
- }
- sbus_writel(esp->esp_command_dvma, esp->dregs + DMA_ADDR);
-
- /* Tell ESP to "go". */
- esp_cmd(esp, the_esp_command);
- }
-}
-
-/* Queue a SCSI command delivered from the mid-level Linux SCSI code. */
-static int esp_queue(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
-{
- struct esp *esp;
-
- /* Set up func ptr and initial driver cmd-phase. */
- SCpnt->scsi_done = done;
- SCpnt->SCp.phase = not_issued;
-
- /* We use the scratch area. */
- ESPQUEUE(("esp_queue: target=%d lun=%d ", SCpnt->device->id, SCpnt->device->lun));
- ESPDISC(("N<%02x,%02x>", SCpnt->device->id, SCpnt->device->lun));
-
- esp = (struct esp *) SCpnt->device->host->hostdata;
- esp_get_dmabufs(esp, SCpnt);
- esp_save_pointers(esp, SCpnt); /* FIXME for tag queueing */
-
- SCpnt->SCp.Status = CHECK_CONDITION;
- SCpnt->SCp.Message = 0xff;
- SCpnt->SCp.sent_command = 0;
-
- /* Place into our queue. */
- if (SCpnt->cmnd[0] == REQUEST_SENSE) {
- ESPQUEUE(("RQSENSE\n"));
- prepend_SC(&esp->issue_SC, SCpnt);
- } else {
- ESPQUEUE(("\n"));
- append_SC(&esp->issue_SC, SCpnt);
- }
-
- /* Run it now if we can. */
- if (!esp->current_SC && !esp->resetting_bus)
- esp_exec_cmd(esp);
-
- return 0;
-}
-
-/* Dump driver state. */
-static void esp_dump_cmd(struct scsi_cmnd *SCptr)
-{
- ESPLOG(("[tgt<%02x> lun<%02x> "
- "pphase<%s> cphase<%s>]",
- SCptr->device->id, SCptr->device->lun,
- phase_string(SCptr->SCp.sent_command),
- phase_string(SCptr->SCp.phase)));
-}
-
-static void esp_dump_state(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
-#ifdef DEBUG_ESP_CMDS
- int i;
-#endif
-
- ESPLOG(("esp%d: dumping state\n", esp->esp_id));
- ESPLOG(("esp%d: dma -- cond_reg<%08x> addr<%08x>\n",
- esp->esp_id,
- sbus_readl(esp->dregs + DMA_CSR),
- sbus_readl(esp->dregs + DMA_ADDR)));
- ESPLOG(("esp%d: SW [sreg<%02x> sstep<%02x> ireg<%02x>]\n",
- esp->esp_id, esp->sreg, esp->seqreg, esp->ireg));
- ESPLOG(("esp%d: HW reread [sreg<%02x> sstep<%02x> ireg<%02x>]\n",
- esp->esp_id,
- sbus_readb(esp->eregs + ESP_STATUS),
- sbus_readb(esp->eregs + ESP_SSTEP),
- sbus_readb(esp->eregs + ESP_INTRPT)));
-#ifdef DEBUG_ESP_CMDS
- printk("esp%d: last ESP cmds [", esp->esp_id);
- i = (esp->espcmdent - 1) & 31;
- printk("<"); esp_print_cmd(esp->espcmdlog[i]); printk(">");
- i = (i - 1) & 31;
- printk("<"); esp_print_cmd(esp->espcmdlog[i]); printk(">");
- i = (i - 1) & 31;
- printk("<"); esp_print_cmd(esp->espcmdlog[i]); printk(">");
- i = (i - 1) & 31;
- printk("<"); esp_print_cmd(esp->espcmdlog[i]); printk(">");
- printk("]\n");
-#endif /* (DEBUG_ESP_CMDS) */
-
- if (SCptr) {
- ESPLOG(("esp%d: current command ", esp->esp_id));
- esp_dump_cmd(SCptr);
- }
- ESPLOG(("\n"));
- SCptr = esp->disconnected_SC;
- ESPLOG(("esp%d: disconnected ", esp->esp_id));
- while (SCptr) {
- esp_dump_cmd(SCptr);
- SCptr = (struct scsi_cmnd *) SCptr->host_scribble;
- }
- ESPLOG(("\n"));
-}
-
-/* Abort a command. The host_lock is acquired by caller. */
-static int esp_abort(struct scsi_cmnd *SCptr)
-{
- struct esp *esp = (struct esp *) SCptr->device->host->hostdata;
- int don;
-
- ESPLOG(("esp%d: Aborting command\n", esp->esp_id));
- esp_dump_state(esp);
-
- /* Wheee, if this is the current command on the bus, the
- * best we can do is assert ATN and wait for msgout phase.
- * This should even fix a hung SCSI bus when we lose state
- * in the driver and timeout because the eventual phase change
- * will cause the ESP to (eventually) give an interrupt.
- */
- if (esp->current_SC == SCptr) {
- esp->cur_msgout[0] = ABORT;
- esp->msgout_len = 1;
- esp->msgout_ctr = 0;
- esp_cmd(esp, ESP_CMD_SATN);
- return SUCCESS;
- }
-
- /* If it is still in the issue queue then we can safely
- * call the completion routine and report abort success.
- */
- don = (sbus_readl(esp->dregs + DMA_CSR) & DMA_INT_ENAB);
- if (don) {
- ESP_INTSOFF(esp->dregs);
- }
- if (esp->issue_SC) {
- struct scsi_cmnd **prev, *this;
- for (prev = (&esp->issue_SC), this = esp->issue_SC;
- this != NULL;
- prev = (struct scsi_cmnd **) &(this->host_scribble),
- this = (struct scsi_cmnd *) this->host_scribble) {
-
- if (this == SCptr) {
- *prev = (struct scsi_cmnd *) this->host_scribble;
- this->host_scribble = NULL;
-
- esp_release_dmabufs(esp, this);
- this->result = DID_ABORT << 16;
- this->scsi_done(this);
-
- if (don)
- ESP_INTSON(esp->dregs);
-
- return SUCCESS;
- }
- }
- }
-
- /* Yuck, the command to abort is disconnected, it is not
- * worth trying to abort it now if something else is live
- * on the bus at this time. So, we let the SCSI code wait
- * a little bit and try again later.
- */
- if (esp->current_SC) {
- if (don)
- ESP_INTSON(esp->dregs);
- return FAILED;
- }
-
- /* It's disconnected, we have to reconnect to re-establish
- * the nexus and tell the device to abort. However, we really
- * cannot 'reconnect' per se. Don't try to be fancy, just
- * indicate failure, which causes our caller to reset the whole
- * bus.
- */
-
- if (don)
- ESP_INTSON(esp->dregs);
-
- return FAILED;
-}
-
-/* We've sent ESP_CMD_RS to the ESP, the interrupt had just
- * arrived indicating the end of the SCSI bus reset. Our job
- * is to clean out the command queues and begin re-execution
- * of SCSI commands once more.
- */
-static int esp_finish_reset(struct esp *esp)
-{
- struct scsi_cmnd *sp = esp->current_SC;
-
- /* Clean up currently executing command, if any. */
- if (sp != NULL) {
- esp->current_SC = NULL;
-
- esp_release_dmabufs(esp, sp);
- sp->result = (DID_RESET << 16);
-
- sp->scsi_done(sp);
- }
-
- /* Clean up disconnected queue, they have been invalidated
- * by the bus reset.
- */
- if (esp->disconnected_SC) {
- while ((sp = remove_first_SC(&esp->disconnected_SC)) != NULL) {
- esp_release_dmabufs(esp, sp);
- sp->result = (DID_RESET << 16);
-
- sp->scsi_done(sp);
- }
- }
-
- /* SCSI bus reset is complete. */
- esp->resetting_bus = 0;
- wake_up(&esp->reset_queue);
-
- /* Ok, now it is safe to get commands going once more. */
- if (esp->issue_SC)
- esp_exec_cmd(esp);
-
- return do_intr_end;
-}
-
-static int esp_do_resetbus(struct esp *esp)
-{
- ESPLOG(("esp%d: Resetting scsi bus\n", esp->esp_id));
- esp->resetting_bus = 1;
- esp_cmd(esp, ESP_CMD_RS);
-
- return do_intr_end;
-}
-
-/* Reset ESP chip, reset hanging bus, then kill active and
- * disconnected commands for targets without soft reset.
- *
- * The host_lock is acquired by caller.
- */
-static int esp_reset(struct scsi_cmnd *SCptr)
-{
- struct esp *esp = (struct esp *) SCptr->device->host->hostdata;
-
- spin_lock_irq(esp->ehost->host_lock);
- (void) esp_do_resetbus(esp);
- spin_unlock_irq(esp->ehost->host_lock);
-
- wait_event(esp->reset_queue, (esp->resetting_bus == 0));
-
- return SUCCESS;
-}
-
-/* Internal ESP done function. */
-static void esp_done(struct esp *esp, int error)
-{
- struct scsi_cmnd *done_SC = esp->current_SC;
-
- esp->current_SC = NULL;
-
- esp_release_dmabufs(esp, done_SC);
- done_SC->result = error;
-
- done_SC->scsi_done(done_SC);
-
- /* Bus is free, issue any commands in the queue. */
- if (esp->issue_SC && !esp->current_SC)
- esp_exec_cmd(esp);
-
-}
-
-/* Wheee, ESP interrupt engine. */
-
-/* Forward declarations. */
-static int esp_do_phase_determine(struct esp *esp);
-static int esp_do_data_finale(struct esp *esp);
-static int esp_select_complete(struct esp *esp);
-static int esp_do_status(struct esp *esp);
-static int esp_do_msgin(struct esp *esp);
-static int esp_do_msgindone(struct esp *esp);
-static int esp_do_msgout(struct esp *esp);
-static int esp_do_cmdbegin(struct esp *esp);
-
-#define sreg_datainp(__sreg) (((__sreg) & ESP_STAT_PMASK) == ESP_DIP)
-#define sreg_dataoutp(__sreg) (((__sreg) & ESP_STAT_PMASK) == ESP_DOP)
-
-/* Read any bytes found in the FAS366 fifo, storing them into
- * the ESP driver software state structure.
- */
-static void hme_fifo_read(struct esp *esp)
-{
- u8 count = 0;
- u8 status = esp->sreg;
-
- /* Cannot safely frob the fifo for these following cases, but
- * we must always read the fifo when the reselect interrupt
- * is pending.
- */
- if (((esp->ireg & ESP_INTR_RSEL) == 0) &&
- (sreg_datainp(status) ||
- sreg_dataoutp(status) ||
- (esp->current_SC &&
- esp->current_SC->SCp.phase == in_data_done))) {
- ESPHME(("<wkaround_skipped>"));
- } else {
- unsigned long fcnt = sbus_readb(esp->eregs + ESP_FFLAGS) & ESP_FF_FBYTES;
-
- /* The HME stores bytes in multiples of 2 in the fifo. */
- ESPHME(("hme_fifo[fcnt=%d", (int)fcnt));
- while (fcnt) {
- esp->hme_fifo_workaround_buffer[count++] =
- sbus_readb(esp->eregs + ESP_FDATA);
- esp->hme_fifo_workaround_buffer[count++] =
- sbus_readb(esp->eregs + ESP_FDATA);
- ESPHME(("<%02x,%02x>", esp->hme_fifo_workaround_buffer[count-2], esp->hme_fifo_workaround_buffer[count-1]));
- fcnt--;
- }
- if (sbus_readb(esp->eregs + ESP_STATUS2) & ESP_STAT2_F1BYTE) {
- ESPHME(("<poke_byte>"));
- sbus_writeb(0, esp->eregs + ESP_FDATA);
- esp->hme_fifo_workaround_buffer[count++] =
- sbus_readb(esp->eregs + ESP_FDATA);
- ESPHME(("<%02x,0x00>", esp->hme_fifo_workaround_buffer[count-1]));
- ESPHME(("CMD_FLUSH"));
- esp_cmd(esp, ESP_CMD_FLUSH);
- } else {
- ESPHME(("no_xtra_byte"));
- }
- }
- ESPHME(("wkarnd_cnt=%d]", (int)count));
- esp->hme_fifo_workaround_count = count;
-}
-
-static inline void hme_fifo_push(struct esp *esp, u8 *bytes, u8 count)
-{
- esp_cmd(esp, ESP_CMD_FLUSH);
- while (count) {
- u8 tmp = *bytes++;
- sbus_writeb(tmp, esp->eregs + ESP_FDATA);
- sbus_writeb(0, esp->eregs + ESP_FDATA);
- count--;
- }
-}
-
-/* We try to avoid some interrupts by jumping ahead and see if the ESP
- * has gotten far enough yet. Hence the following.
- */
-static inline int skipahead1(struct esp *esp, struct scsi_cmnd *scp,
- int prev_phase, int new_phase)
-{
- if (scp->SCp.sent_command != prev_phase)
- return 0;
- if (ESP_IRQ_P(esp->dregs)) {
- /* Yes, we are able to save an interrupt. */
- if (esp->erev == fashme)
- esp->sreg2 = sbus_readb(esp->eregs + ESP_STATUS2);
- esp->sreg = (sbus_readb(esp->eregs + ESP_STATUS) & ~(ESP_STAT_INTR));
- esp->ireg = sbus_readb(esp->eregs + ESP_INTRPT);
- if (esp->erev == fashme) {
- /* This chip is really losing. */
- ESPHME(("HME["));
- /* Must latch fifo before reading the interrupt
- * register else garbage ends up in the FIFO
- * which confuses the driver utterly.
- * Happy Meal indeed....
- */
- ESPHME(("fifo_workaround]"));
- if (!(esp->sreg2 & ESP_STAT2_FEMPTY) ||
- (esp->sreg2 & ESP_STAT2_F1BYTE))
- hme_fifo_read(esp);
- }
- if (!(esp->ireg & ESP_INTR_SR))
- return 0;
- else
- return do_reset_complete;
- }
- /* Ho hum, target is taking forever... */
- scp->SCp.sent_command = new_phase; /* so we don't recurse... */
- return do_intr_end;
-}
-
-static inline int skipahead2(struct esp *esp, struct scsi_cmnd *scp,
- int prev_phase1, int prev_phase2, int new_phase)
-{
- if (scp->SCp.sent_command != prev_phase1 &&
- scp->SCp.sent_command != prev_phase2)
- return 0;
- if (ESP_IRQ_P(esp->dregs)) {
- /* Yes, we are able to save an interrupt. */
- if (esp->erev == fashme)
- esp->sreg2 = sbus_readb(esp->eregs + ESP_STATUS2);
- esp->sreg = (sbus_readb(esp->eregs + ESP_STATUS) & ~(ESP_STAT_INTR));
- esp->ireg = sbus_readb(esp->eregs + ESP_INTRPT);
- if (esp->erev == fashme) {
- /* This chip is really losing. */
- ESPHME(("HME["));
-
- /* Must latch fifo before reading the interrupt
- * register else garbage ends up in the FIFO
- * which confuses the driver utterly.
- * Happy Meal indeed....
- */
- ESPHME(("fifo_workaround]"));
- if (!(esp->sreg2 & ESP_STAT2_FEMPTY) ||
- (esp->sreg2 & ESP_STAT2_F1BYTE))
- hme_fifo_read(esp);
- }
- if (!(esp->ireg & ESP_INTR_SR))
- return 0;
- else
- return do_reset_complete;
- }
- /* Ho hum, target is taking forever... */
- scp->SCp.sent_command = new_phase; /* so we don't recurse... */
- return do_intr_end;
-}
-
-/* Now some dma helpers. */
-static void dma_setup(struct esp *esp, __u32 addr, int count, int write)
-{
- u32 nreg = sbus_readl(esp->dregs + DMA_CSR);
-
- if (write)
- nreg |= DMA_ST_WRITE;
- else
- nreg &= ~(DMA_ST_WRITE);
- nreg |= DMA_ENABLE;
- sbus_writel(nreg, esp->dregs + DMA_CSR);
- if (esp->dma->revision == dvmaesc1) {
- /* This ESC gate array sucks! */
- __u32 src = addr;
- __u32 dest = src + count;
-
- if (dest & (PAGE_SIZE - 1))
- count = PAGE_ALIGN(count);
- sbus_writel(count, esp->dregs + DMA_COUNT);
- }
- sbus_writel(addr, esp->dregs + DMA_ADDR);
-}
-
-static void dma_drain(struct esp *esp)
-{
- u32 tmp;
-
- if (esp->dma->revision == dvmahme)
- return;
- if ((tmp = sbus_readl(esp->dregs + DMA_CSR)) & DMA_FIFO_ISDRAIN) {
- switch (esp->dma->revision) {
- default:
- tmp |= DMA_FIFO_STDRAIN;
- sbus_writel(tmp, esp->dregs + DMA_CSR);
-
- case dvmarev3:
- case dvmaesc1:
- while (sbus_readl(esp->dregs + DMA_CSR) & DMA_FIFO_ISDRAIN)
- udelay(1);
- };
- }
-}
-
-static void dma_invalidate(struct esp *esp)
-{
- u32 tmp;
-
- if (esp->dma->revision == dvmahme) {
- sbus_writel(DMA_RST_SCSI, esp->dregs + DMA_CSR);
-
- esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
- (DMA_PARITY_OFF | DMA_2CLKS |
- DMA_SCSI_DISAB | DMA_INT_ENAB)) &
- ~(DMA_ST_WRITE | DMA_ENABLE));
-
- sbus_writel(0, esp->dregs + DMA_CSR);
- sbus_writel(esp->prev_hme_dmacsr, esp->dregs + DMA_CSR);
-
- /* This is necessary to avoid having the SCSI channel
- * engine lock up on us.
- */
- sbus_writel(0, esp->dregs + DMA_ADDR);
- } else {
- while ((tmp = sbus_readl(esp->dregs + DMA_CSR)) & DMA_PEND_READ)
- udelay(1);
-
- tmp &= ~(DMA_ENABLE | DMA_ST_WRITE | DMA_BCNT_ENAB);
- tmp |= DMA_FIFO_INV;
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- tmp &= ~DMA_FIFO_INV;
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- }
-}
-
-static inline void dma_flashclear(struct esp *esp)
-{
- dma_drain(esp);
- dma_invalidate(esp);
-}
-
-static int dma_can_transfer(struct esp *esp, struct scsi_cmnd *sp)
-{
- __u32 base, end, sz;
-
- if (esp->dma->revision == dvmarev3) {
- sz = sp->SCp.this_residual;
- if (sz > 0x1000000)
- sz = 0x1000000;
- } else {
- base = ((__u32)((unsigned long)sp->SCp.ptr));
- base &= (0x1000000 - 1);
- end = (base + sp->SCp.this_residual);
- if (end > 0x1000000)
- end = 0x1000000;
- sz = (end - base);
- }
- return sz;
-}
-
-/* Misc. esp helper macros. */
-#define esp_setcount(__eregs, __cnt, __hme) \
- sbus_writeb(((__cnt)&0xff), (__eregs) + ESP_TCLOW); \
- sbus_writeb((((__cnt)>>8)&0xff), (__eregs) + ESP_TCMED); \
- if (__hme) { \
- sbus_writeb((((__cnt)>>16)&0xff), (__eregs) + FAS_RLO); \
- sbus_writeb(0, (__eregs) + FAS_RHI); \
- }
-
-#define esp_getcount(__eregs, __hme) \
- ((sbus_readb((__eregs) + ESP_TCLOW)&0xff) | \
- ((sbus_readb((__eregs) + ESP_TCMED)&0xff) << 8) | \
- ((__hme) ? sbus_readb((__eregs) + FAS_RLO) << 16 : 0))
-
-#define fcount(__esp) \
- (((__esp)->erev == fashme) ? \
- (__esp)->hme_fifo_workaround_count : \
- sbus_readb(((__esp)->eregs) + ESP_FFLAGS) & ESP_FF_FBYTES)
-
-#define fnzero(__esp) \
- (((__esp)->erev == fashme) ? 0 : \
- sbus_readb(((__esp)->eregs) + ESP_FFLAGS) & ESP_FF_ONOTZERO)
-
-/* XXX speculative nops unnecessary when continuing amidst a data phase
- * XXX even on esp100!!! another case of flooding the bus with I/O reg
- * XXX writes...
- */
-#define esp_maybe_nop(__esp) \
- if ((__esp)->erev == esp100) \
- esp_cmd((__esp), ESP_CMD_NULL)
-
-#define sreg_to_dataphase(__sreg) \
- ((((__sreg) & ESP_STAT_PMASK) == ESP_DOP) ? in_dataout : in_datain)
-
-/* The ESP100 when in synchronous data phase, can mistake a long final
- * REQ pulse from the target as an extra byte, it places whatever is on
- * the data lines into the fifo. For now, we will assume when this
- * happens that the target is a bit quirky and we don't want to
- * be talking synchronously to it anyways. Regardless, we need to
- * tell the ESP to eat the extraneous byte so that we can proceed
- * to the next phase.
- */
-static int esp100_sync_hwbug(struct esp *esp, struct scsi_cmnd *sp, int fifocnt)
-{
- /* Do not touch this piece of code. */
- if ((!(esp->erev == esp100)) ||
- (!(sreg_datainp((esp->sreg = sbus_readb(esp->eregs + ESP_STATUS))) &&
- !fifocnt) &&
- !(sreg_dataoutp(esp->sreg) && !fnzero(esp)))) {
- if (sp->SCp.phase == in_dataout)
- esp_cmd(esp, ESP_CMD_FLUSH);
- return 0;
- } else {
- /* Async mode for this guy. */
- build_sync_nego_msg(esp, 0, 0);
-
- /* Ack the bogus byte, but set ATN first. */
- esp_cmd(esp, ESP_CMD_SATN);
- esp_cmd(esp, ESP_CMD_MOK);
- return 1;
- }
-}
-
-/* This closes the window during a selection with a reselect pending, because
- * we use DMA for the selection process the FIFO should hold the correct
- * contents if we get reselected during this process. So we just need to
- * ack the possible illegal cmd interrupt pending on the esp100.
- */
-static inline int esp100_reconnect_hwbug(struct esp *esp)
-{
- u8 tmp;
-
- if (esp->erev != esp100)
- return 0;
- tmp = sbus_readb(esp->eregs + ESP_INTRPT);
- if (tmp & ESP_INTR_SR)
- return 1;
- return 0;
-}
-
-/* This verifies the BUSID bits during a reselection so that we know which
- * target is talking to us.
- */
-static inline int reconnect_target(struct esp *esp)
-{
- int it, me = esp->scsi_id_mask, targ = 0;
-
- if (2 != fcount(esp))
- return -1;
- if (esp->erev == fashme) {
- /* HME does not latch it's own BUS ID bits during
- * a reselection. Also the target number is given
- * as an unsigned char, not as a sole bit number
- * like the other ESP's do.
- * Happy Meal indeed....
- */
- targ = esp->hme_fifo_workaround_buffer[0];
- } else {
- it = sbus_readb(esp->eregs + ESP_FDATA);
- if (!(it & me))
- return -1;
- it &= ~me;
- if (it & (it - 1))
- return -1;
- while (!(it & 1))
- targ++, it >>= 1;
- }
- return targ;
-}
-
-/* This verifies the identify from the target so that we know which lun is
- * being reconnected.
- */
-static inline int reconnect_lun(struct esp *esp)
-{
- int lun;
-
- if ((esp->sreg & ESP_STAT_PMASK) != ESP_MIP)
- return -1;
- if (esp->erev == fashme)
- lun = esp->hme_fifo_workaround_buffer[1];
- else
- lun = sbus_readb(esp->eregs + ESP_FDATA);
-
- /* Yes, you read this correctly. We report lun of zero
- * if we see parity error. ESP reports parity error for
- * the lun byte, and this is the only way to hope to recover
- * because the target is connected.
- */
- if (esp->sreg & ESP_STAT_PERR)
- return 0;
-
- /* Check for illegal bits being set in the lun. */
- if ((lun & 0x40) || !(lun & 0x80))
- return -1;
-
- return lun & 7;
-}
-
-/* This puts the driver in a state where it can revitalize a command that
- * is being continued due to reselection.
- */
-static inline void esp_connect(struct esp *esp, struct scsi_cmnd *sp)
-{
- struct esp_device *esp_dev = sp->device->hostdata;
-
- if (esp->prev_soff != esp_dev->sync_max_offset ||
- esp->prev_stp != esp_dev->sync_min_period ||
- (esp->erev > esp100a &&
- esp->prev_cfg3 != esp->config3[sp->device->id])) {
- esp->prev_soff = esp_dev->sync_max_offset;
- esp->prev_stp = esp_dev->sync_min_period;
- sbus_writeb(esp->prev_soff, esp->eregs + ESP_SOFF);
- sbus_writeb(esp->prev_stp, esp->eregs + ESP_STP);
- if (esp->erev > esp100a) {
- esp->prev_cfg3 = esp->config3[sp->device->id];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- }
- }
- esp->current_SC = sp;
-}
-
-/* This will place the current working command back into the issue queue
- * if we are to receive a reselection amidst a selection attempt.
- */
-static inline void esp_reconnect(struct esp *esp, struct scsi_cmnd *sp)
-{
- if (!esp->disconnected_SC)
- ESPLOG(("esp%d: Weird, being reselected but disconnected "
- "command queue is empty.\n", esp->esp_id));
- esp->snip = 0;
- esp->current_SC = NULL;
- sp->SCp.phase = not_issued;
- append_SC(&esp->issue_SC, sp);
-}
-
-/* Begin message in phase. */
-static int esp_do_msgin(struct esp *esp)
-{
- /* Must be very careful with the fifo on the HME */
- if ((esp->erev != fashme) ||
- !(sbus_readb(esp->eregs + ESP_STATUS2) & ESP_STAT2_FEMPTY))
- esp_cmd(esp, ESP_CMD_FLUSH);
- esp_maybe_nop(esp);
- esp_cmd(esp, ESP_CMD_TI);
- esp->msgin_len = 1;
- esp->msgin_ctr = 0;
- esp_advance_phase(esp->current_SC, in_msgindone);
- return do_work_bus;
-}
-
-/* This uses various DMA csr fields and the fifo flags count value to
- * determine how many bytes were successfully sent/received by the ESP.
- */
-static inline int esp_bytes_sent(struct esp *esp, int fifo_count)
-{
- int rval = sbus_readl(esp->dregs + DMA_ADDR) - esp->esp_command_dvma;
-
- if (esp->dma->revision == dvmarev1)
- rval -= (4 - ((sbus_readl(esp->dregs + DMA_CSR) & DMA_READ_AHEAD)>>11));
- return rval - fifo_count;
-}
-
-static inline void advance_sg(struct scsi_cmnd *sp)
-{
- ++sp->SCp.buffer;
- --sp->SCp.buffers_residual;
- sp->SCp.this_residual = sg_dma_len(sp->SCp.buffer);
- sp->SCp.ptr = (char *)((unsigned long)sg_dma_address(sp->SCp.buffer));
-}
-
-/* Please note that the way I've coded these routines is that I _always_
- * check for a disconnect during any and all information transfer
- * phases. The SCSI standard states that the target _can_ cause a BUS
- * FREE condition by dropping all MSG/CD/IO/BSY signals. Also note
- * that during information transfer phases the target controls every
- * change in phase, the only thing the initiator can do is "ask" for
- * a message out phase by driving ATN true. The target can, and sometimes
- * will, completely ignore this request so we cannot assume anything when
- * we try to force a message out phase to abort/reset a target. Most of
- * the time the target will eventually be nice and go to message out, so
- * we may have to hold on to our state about what we want to tell the target
- * for some period of time.
- */
-
-/* I think I have things working here correctly. Even partial transfers
- * within a buffer or sub-buffer should not upset us at all no matter
- * how bad the target and/or ESP fucks things up.
- */
-static int esp_do_data(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- int thisphase, hmuch;
-
- ESPDATA(("esp_do_data: "));
- esp_maybe_nop(esp);
- thisphase = sreg_to_dataphase(esp->sreg);
- esp_advance_phase(SCptr, thisphase);
- ESPDATA(("newphase<%s> ", (thisphase == in_datain) ? "DATAIN" : "DATAOUT"));
- hmuch = dma_can_transfer(esp, SCptr);
- if (hmuch > (64 * 1024) && (esp->erev != fashme))
- hmuch = (64 * 1024);
- ESPDATA(("hmuch<%d> ", hmuch));
- esp->current_transfer_size = hmuch;
-
- if (esp->erev == fashme) {
- u32 tmp = esp->prev_hme_dmacsr;
-
- /* Always set the ESP count registers first. */
- esp_setcount(esp->eregs, hmuch, 1);
-
- /* Get the DMA csr computed. */
- tmp |= (DMA_SCSI_DISAB | DMA_ENABLE);
- if (thisphase == in_datain)
- tmp |= DMA_ST_WRITE;
- else
- tmp &= ~(DMA_ST_WRITE);
- esp->prev_hme_dmacsr = tmp;
-
- ESPDATA(("DMA|TI --> do_intr_end\n"));
- if (thisphase == in_datain) {
- sbus_writel(hmuch, esp->dregs + DMA_COUNT);
- esp_cmd(esp, ESP_CMD_DMA | ESP_CMD_TI);
- } else {
- esp_cmd(esp, ESP_CMD_DMA | ESP_CMD_TI);
- sbus_writel(hmuch, esp->dregs + DMA_COUNT);
- }
- sbus_writel((__u32)((unsigned long)SCptr->SCp.ptr), esp->dregs+DMA_ADDR);
- sbus_writel(esp->prev_hme_dmacsr, esp->dregs + DMA_CSR);
- } else {
- esp_setcount(esp->eregs, hmuch, 0);
- dma_setup(esp, ((__u32)((unsigned long)SCptr->SCp.ptr)),
- hmuch, (thisphase == in_datain));
- ESPDATA(("DMA|TI --> do_intr_end\n"));
- esp_cmd(esp, ESP_CMD_DMA | ESP_CMD_TI);
- }
- return do_intr_end;
-}
-
-/* See how successful the data transfer was. */
-static int esp_do_data_finale(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- struct esp_device *esp_dev = SCptr->device->hostdata;
- int bogus_data = 0, bytes_sent = 0, fifocnt, ecount = 0;
-
- ESPDATA(("esp_do_data_finale: "));
-
- if (SCptr->SCp.phase == in_datain) {
- if (esp->sreg & ESP_STAT_PERR) {
- /* Yuck, parity error. The ESP asserts ATN
- * so that we can go to message out phase
- * immediately and inform the target that
- * something bad happened.
- */
- ESPLOG(("esp%d: data bad parity detected.\n",
- esp->esp_id));
- esp->cur_msgout[0] = INITIATOR_ERROR;
- esp->msgout_len = 1;
- }
- dma_drain(esp);
- }
- dma_invalidate(esp);
-
- /* This could happen for the above parity error case. */
- if (esp->ireg != ESP_INTR_BSERV) {
- /* Please go to msgout phase, please please please... */
- ESPLOG(("esp%d: !BSERV after data, probably to msgout\n",
- esp->esp_id));
- return esp_do_phase_determine(esp);
- }
-
- /* Check for partial transfers and other horrible events.
- * Note, here we read the real fifo flags register even
- * on HME broken adapters because we skip the HME fifo
- * workaround code in esp_handle() if we are doing data
- * phase things. We don't want to fuck directly with
- * the fifo like that, especially if doing synchronous
- * transfers! Also, will need to double the count on
- * HME if we are doing wide transfers, as the HME fifo
- * will move and count 16-bit quantities during wide data.
- * SMCC _and_ Qlogic can both bite me.
- */
- fifocnt = (sbus_readb(esp->eregs + ESP_FFLAGS) & ESP_FF_FBYTES);
- if (esp->erev != fashme)
- ecount = esp_getcount(esp->eregs, 0);
- bytes_sent = esp->current_transfer_size;
-
- ESPDATA(("trans_sz(%d), ", bytes_sent));
- if (esp->erev == fashme) {
- if (!(esp->sreg & ESP_STAT_TCNT)) {
- ecount = esp_getcount(esp->eregs, 1);
- bytes_sent -= ecount;
- }
-
- /* Always subtract any cruft remaining in the FIFO. */
- if (esp->prev_cfg3 & ESP_CONFIG3_EWIDE)
- fifocnt <<= 1;
- if (SCptr->SCp.phase == in_dataout)
- bytes_sent -= fifocnt;
-
- /* I have an IBM disk which exhibits the following
- * behavior during writes to it. It disconnects in
- * the middle of a partial transfer, the current sglist
- * buffer is 1024 bytes, the disk stops data transfer
- * at 512 bytes.
- *
- * However the FAS366 reports that 32 more bytes were
- * transferred than really were. This is precisely
- * the size of a fully loaded FIFO in wide scsi mode.
- * The FIFO state recorded indicates that it is empty.
- *
- * I have no idea if this is a bug in the FAS366 chip
- * or a bug in the firmware on this IBM disk. In any
- * event the following seems to be a good workaround. -DaveM
- */
- if (bytes_sent != esp->current_transfer_size &&
- SCptr->SCp.phase == in_dataout) {
- int mask = (64 - 1);
-
- if ((esp->prev_cfg3 & ESP_CONFIG3_EWIDE) == 0)
- mask >>= 1;
-
- if (bytes_sent & mask)
- bytes_sent -= (bytes_sent & mask);
- }
- } else {
- if (!(esp->sreg & ESP_STAT_TCNT))
- bytes_sent -= ecount;
- if (SCptr->SCp.phase == in_dataout)
- bytes_sent -= fifocnt;
- }
-
- ESPDATA(("bytes_sent(%d), ", bytes_sent));
-
- /* If we were in synchronous mode, check for peculiarities. */
- if (esp->erev == fashme) {
- if (esp_dev->sync_max_offset) {
- if (SCptr->SCp.phase == in_dataout)
- esp_cmd(esp, ESP_CMD_FLUSH);
- } else {
- esp_cmd(esp, ESP_CMD_FLUSH);
- }
- } else {
- if (esp_dev->sync_max_offset)
- bogus_data = esp100_sync_hwbug(esp, SCptr, fifocnt);
- else
- esp_cmd(esp, ESP_CMD_FLUSH);
- }
-
- /* Until we are sure of what has happened, we are certainly
- * in the dark.
- */
- esp_advance_phase(SCptr, in_the_dark);
-
- if (bytes_sent < 0) {
- /* I've seen this happen due to lost state in this
- * driver. No idea why it happened, but allowing
- * this value to be negative caused things to
- * lock up. This allows greater chance of recovery.
- * In fact every time I've seen this, it has been
- * a driver bug without question.
- */
- ESPLOG(("esp%d: yieee, bytes_sent < 0!\n", esp->esp_id));
- ESPLOG(("esp%d: csz=%d fifocount=%d ecount=%d\n",
- esp->esp_id,
- esp->current_transfer_size, fifocnt, ecount));
- ESPLOG(("esp%d: use_sg=%d ptr=%p this_residual=%d\n",
- esp->esp_id,
- SCptr->use_sg, SCptr->SCp.ptr, SCptr->SCp.this_residual));
- ESPLOG(("esp%d: Forcing async for target %d\n", esp->esp_id,
- SCptr->device->id));
- SCptr->device->borken = 1;
- esp_dev->sync = 0;
- bytes_sent = 0;
- }
-
- /* Update the state of our transfer. */
- SCptr->SCp.ptr += bytes_sent;
- SCptr->SCp.this_residual -= bytes_sent;
- if (SCptr->SCp.this_residual < 0) {
- /* shit */
- ESPLOG(("esp%d: Data transfer overrun.\n", esp->esp_id));
- SCptr->SCp.this_residual = 0;
- }
-
- /* Maybe continue. */
- if (!bogus_data) {
- ESPDATA(("!bogus_data, "));
-
- /* NO MATTER WHAT, we advance the scatterlist,
- * if the target should decide to disconnect
- * in between scatter chunks (which is common)
- * we could die horribly! I used to have the sg
- * advance occur only if we are going back into
- * (or are staying in) a data phase, you can
- * imagine the hell I went through trying to
- * figure this out.
- */
- if (SCptr->use_sg && !SCptr->SCp.this_residual)
- advance_sg(SCptr);
- if (sreg_datainp(esp->sreg) || sreg_dataoutp(esp->sreg)) {
- ESPDATA(("to more data\n"));
- return esp_do_data(esp);
- }
- ESPDATA(("to new phase\n"));
- return esp_do_phase_determine(esp);
- }
- /* Bogus data, just wait for next interrupt. */
- ESPLOG(("esp%d: bogus_data during end of data phase\n",
- esp->esp_id));
- return do_intr_end;
-}
-
-/* We received a non-good status return at the end of
- * running a SCSI command. This is used to decide if
- * we should clear our synchronous transfer state for
- * such a device when that happens.
- *
- * The idea is that when spinning up a disk or rewinding
- * a tape, we don't want to go into a loop re-negotiating
- * synchronous capabilities over and over.
- */
-static int esp_should_clear_sync(struct scsi_cmnd *sp)
-{
- u8 cmd = sp->cmnd[0];
-
- /* These cases are for spinning up a disk and
- * waiting for that spinup to complete.
- */
- if (cmd == START_STOP)
- return 0;
-
- if (cmd == TEST_UNIT_READY)
- return 0;
-
- /* One more special case for SCSI tape drives,
- * this is what is used to probe the device for
- * completion of a rewind or tape load operation.
- */
- if (sp->device->type == TYPE_TAPE) {
- if (cmd == MODE_SENSE)
- return 0;
- }
-
- return 1;
-}
-
-/* Either a command is completing or a target is dropping off the bus
- * to continue the command in the background so we can do other work.
- */
-static int esp_do_freebus(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- struct esp_device *esp_dev = SCptr->device->hostdata;
- int rval;
-
- rval = skipahead2(esp, SCptr, in_status, in_msgindone, in_freeing);
- if (rval)
- return rval;
- if (esp->ireg != ESP_INTR_DC) {
- ESPLOG(("esp%d: Target will not disconnect\n", esp->esp_id));
- return do_reset_bus; /* target will not drop BSY... */
- }
- esp->msgout_len = 0;
- esp->prevmsgout = NOP;
- if (esp->prevmsgin == COMMAND_COMPLETE) {
- /* Normal end of nexus. */
- if (esp->disconnected_SC || (esp->erev == fashme))
- esp_cmd(esp, ESP_CMD_ESEL);
-
- if (SCptr->SCp.Status != GOOD &&
- SCptr->SCp.Status != CONDITION_GOOD &&
- ((1<<SCptr->device->id) & esp->targets_present) &&
- esp_dev->sync &&
- esp_dev->sync_max_offset) {
- /* SCSI standard says that the synchronous capabilities
- * should be renegotiated at this point. Most likely
- * we are about to request sense from this target
- * in which case we want to avoid using sync
- * transfers until we are sure of the current target
- * state.
- */
- ESPMISC(("esp: Status <%d> for target %d lun %d\n",
- SCptr->SCp.Status, SCptr->device->id, SCptr->device->lun));
-
- /* But don't do this when spinning up a disk at
- * boot time while we poll for completion as it
- * fills up the console with messages. Also, tapes
- * can report not ready many times right after
- * loading up a tape.
- */
- if (esp_should_clear_sync(SCptr) != 0)
- esp_dev->sync = 0;
- }
- ESPDISC(("F<%02x,%02x>", SCptr->device->id, SCptr->device->lun));
- esp_done(esp, ((SCptr->SCp.Status & 0xff) |
- ((SCptr->SCp.Message & 0xff)<<8) |
- (DID_OK << 16)));
- } else if (esp->prevmsgin == DISCONNECT) {
- /* Normal disconnect. */
- esp_cmd(esp, ESP_CMD_ESEL);
- ESPDISC(("D<%02x,%02x>", SCptr->device->id, SCptr->device->lun));
- append_SC(&esp->disconnected_SC, SCptr);
- esp->current_SC = NULL;
- if (esp->issue_SC)
- esp_exec_cmd(esp);
- } else {
- /* Driver bug, we do not expect a disconnect here
- * and should not have advanced the state engine
- * to in_freeing.
- */
- ESPLOG(("esp%d: last msg not disc and not cmd cmplt.\n",
- esp->esp_id));
- return do_reset_bus;
- }
- return do_intr_end;
-}
-
-/* When a reselect occurs, and we cannot find the command to
- * reconnect to in our queues, we do this.
- */
-static int esp_bad_reconnect(struct esp *esp)
-{
- struct scsi_cmnd *sp;
-
- ESPLOG(("esp%d: Eieeee, reconnecting unknown command!\n",
- esp->esp_id));
- ESPLOG(("QUEUE DUMP\n"));
- sp = esp->issue_SC;
- ESPLOG(("esp%d: issue_SC[", esp->esp_id));
- while (sp) {
- ESPLOG(("<%02x,%02x>", sp->device->id, sp->device->lun));
- sp = (struct scsi_cmnd *) sp->host_scribble;
- }
- ESPLOG(("]\n"));
- sp = esp->current_SC;
- ESPLOG(("esp%d: current_SC[", esp->esp_id));
- if (sp)
- ESPLOG(("<%02x,%02x>", sp->device->id, sp->device->lun));
- else
- ESPLOG(("<NULL>"));
- ESPLOG(("]\n"));
- sp = esp->disconnected_SC;
- ESPLOG(("esp%d: disconnected_SC[", esp->esp_id));
- while (sp) {
- ESPLOG(("<%02x,%02x>", sp->device->id, sp->device->lun));
- sp = (struct scsi_cmnd *) sp->host_scribble;
- }
- ESPLOG(("]\n"));
- return do_reset_bus;
-}
-
-/* Do the needy when a target tries to reconnect to us. */
-static int esp_do_reconnect(struct esp *esp)
-{
- int lun, target;
- struct scsi_cmnd *SCptr;
-
- /* Check for all bogus conditions first. */
- target = reconnect_target(esp);
- if (target < 0) {
- ESPDISC(("bad bus bits\n"));
- return do_reset_bus;
- }
- lun = reconnect_lun(esp);
- if (lun < 0) {
- ESPDISC(("target=%2x, bad identify msg\n", target));
- return do_reset_bus;
- }
-
- /* Things look ok... */
- ESPDISC(("R<%02x,%02x>", target, lun));
-
- /* Must not flush FIFO or DVMA on HME. */
- if (esp->erev != fashme) {
- esp_cmd(esp, ESP_CMD_FLUSH);
- if (esp100_reconnect_hwbug(esp))
- return do_reset_bus;
- esp_cmd(esp, ESP_CMD_NULL);
- }
-
- SCptr = remove_SC(&esp->disconnected_SC, (u8) target, (u8) lun);
- if (!SCptr)
- return esp_bad_reconnect(esp);
-
- esp_connect(esp, SCptr);
- esp_cmd(esp, ESP_CMD_MOK);
-
- if (esp->erev == fashme)
- sbus_writeb(((SCptr->device->id & 0xf) |
- (ESP_BUSID_RESELID | ESP_BUSID_CTR32BIT)),
- esp->eregs + ESP_BUSID);
-
- /* Reconnect implies a restore pointers operation. */
- esp_restore_pointers(esp, SCptr);
-
- esp->snip = 0;
- esp_advance_phase(SCptr, in_the_dark);
- return do_intr_end;
-}
-
-/* End of NEXUS (hopefully), pick up status + message byte then leave if
- * all goes well.
- */
-static int esp_do_status(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- int intr, rval;
-
- rval = skipahead1(esp, SCptr, in_the_dark, in_status);
- if (rval)
- return rval;
- intr = esp->ireg;
- ESPSTAT(("esp_do_status: "));
- if (intr != ESP_INTR_DC) {
- int message_out = 0; /* for parity problems */
-
- /* Ack the message. */
- ESPSTAT(("ack msg, "));
- esp_cmd(esp, ESP_CMD_MOK);
-
- if (esp->erev != fashme) {
- dma_flashclear(esp);
-
- /* Wait till the first bits settle. */
- while (esp->esp_command[0] == 0xff)
- udelay(1);
- } else {
- esp->esp_command[0] = esp->hme_fifo_workaround_buffer[0];
- esp->esp_command[1] = esp->hme_fifo_workaround_buffer[1];
- }
-
- ESPSTAT(("got something, "));
- /* ESP chimes in with one of
- *
- * 1) function done interrupt:
- * both status and message in bytes
- * are available
- *
- * 2) bus service interrupt:
- * only status byte was acquired
- *
- * 3) Anything else:
- * can't happen, but we test for it
- * anyways
- *
- * ALSO: If bad parity was detected on either
- * the status _or_ the message byte then
- * the ESP has asserted ATN on the bus
- * and we must therefore wait for the
- * next phase change.
- */
- if (intr & ESP_INTR_FDONE) {
- /* We got it all, hallejulia. */
- ESPSTAT(("got both, "));
- SCptr->SCp.Status = esp->esp_command[0];
- SCptr->SCp.Message = esp->esp_command[1];
- esp->prevmsgin = SCptr->SCp.Message;
- esp->cur_msgin[0] = SCptr->SCp.Message;
- if (esp->sreg & ESP_STAT_PERR) {
- /* There was bad parity for the
- * message byte, the status byte
- * was ok.
- */
- message_out = MSG_PARITY_ERROR;
- }
- } else if (intr == ESP_INTR_BSERV) {
- /* Only got status byte. */
- ESPLOG(("esp%d: got status only, ", esp->esp_id));
- if (!(esp->sreg & ESP_STAT_PERR)) {
- SCptr->SCp.Status = esp->esp_command[0];
- SCptr->SCp.Message = 0xff;
- } else {
- /* The status byte had bad parity.
- * we leave the scsi_pointer Status
- * field alone as we set it to a default
- * of CHECK_CONDITION in esp_queue.
- */
- message_out = INITIATOR_ERROR;
- }
- } else {
- /* This shouldn't happen ever. */
- ESPSTAT(("got bolixed\n"));
- esp_advance_phase(SCptr, in_the_dark);
- return esp_do_phase_determine(esp);
- }
-
- if (!message_out) {
- ESPSTAT(("status=%2x msg=%2x, ", SCptr->SCp.Status,
- SCptr->SCp.Message));
- if (SCptr->SCp.Message == COMMAND_COMPLETE) {
- ESPSTAT(("and was COMMAND_COMPLETE\n"));
- esp_advance_phase(SCptr, in_freeing);
- return esp_do_freebus(esp);
- } else {
- ESPLOG(("esp%d: and _not_ COMMAND_COMPLETE\n",
- esp->esp_id));
- esp->msgin_len = esp->msgin_ctr = 1;
- esp_advance_phase(SCptr, in_msgindone);
- return esp_do_msgindone(esp);
- }
- } else {
- /* With luck we'll be able to let the target
- * know that bad parity happened, it will know
- * which byte caused the problems and send it
- * again. For the case where the status byte
- * receives bad parity, I do not believe most
- * targets recover very well. We'll see.
- */
- ESPLOG(("esp%d: bad parity somewhere mout=%2x\n",
- esp->esp_id, message_out));
- esp->cur_msgout[0] = message_out;
- esp->msgout_len = esp->msgout_ctr = 1;
- esp_advance_phase(SCptr, in_the_dark);
- return esp_do_phase_determine(esp);
- }
- } else {
- /* If we disconnect now, all hell breaks loose. */
- ESPLOG(("esp%d: whoops, disconnect\n", esp->esp_id));
- esp_advance_phase(SCptr, in_the_dark);
- return esp_do_phase_determine(esp);
- }
-}
-
-static int esp_enter_status(struct esp *esp)
-{
- u8 thecmd = ESP_CMD_ICCSEQ;
-
- esp_cmd(esp, ESP_CMD_FLUSH);
- if (esp->erev != fashme) {
- u32 tmp;
-
- esp->esp_command[0] = esp->esp_command[1] = 0xff;
- sbus_writeb(2, esp->eregs + ESP_TCLOW);
- sbus_writeb(0, esp->eregs + ESP_TCMED);
- tmp = sbus_readl(esp->dregs + DMA_CSR);
- tmp |= (DMA_ST_WRITE | DMA_ENABLE);
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- if (esp->dma->revision == dvmaesc1)
- sbus_writel(0x100, esp->dregs + DMA_COUNT);
- sbus_writel(esp->esp_command_dvma, esp->dregs + DMA_ADDR);
- thecmd |= ESP_CMD_DMA;
- }
- esp_cmd(esp, thecmd);
- esp_advance_phase(esp->current_SC, in_status);
-
- return esp_do_status(esp);
-}
-
-static int esp_disconnect_amidst_phases(struct esp *esp)
-{
- struct scsi_cmnd *sp = esp->current_SC;
- struct esp_device *esp_dev = sp->device->hostdata;
-
- /* This means real problems if we see this
- * here. Unless we were actually trying
- * to force the device to abort/reset.
- */
- ESPLOG(("esp%d Disconnect amidst phases, ", esp->esp_id));
- ESPLOG(("pphase<%s> cphase<%s>, ",
- phase_string(sp->SCp.phase),
- phase_string(sp->SCp.sent_command)));
-
- if (esp->disconnected_SC != NULL || (esp->erev == fashme))
- esp_cmd(esp, ESP_CMD_ESEL);
-
- switch (esp->cur_msgout[0]) {
- default:
- /* We didn't expect this to happen at all. */
- ESPLOG(("device is bolixed\n"));
- esp_advance_phase(sp, in_tgterror);
- esp_done(esp, (DID_ERROR << 16));
- break;
-
- case BUS_DEVICE_RESET:
- ESPLOG(("device reset successful\n"));
- esp_dev->sync_max_offset = 0;
- esp_dev->sync_min_period = 0;
- esp_dev->sync = 0;
- esp_advance_phase(sp, in_resetdev);
- esp_done(esp, (DID_RESET << 16));
- break;
-
- case ABORT:
- ESPLOG(("device abort successful\n"));
- esp_advance_phase(sp, in_abortone);
- esp_done(esp, (DID_ABORT << 16));
- break;
-
- };
- return do_intr_end;
-}
-
-static int esp_enter_msgout(struct esp *esp)
-{
- esp_advance_phase(esp->current_SC, in_msgout);
- return esp_do_msgout(esp);
-}
-
-static int esp_enter_msgin(struct esp *esp)
-{
- esp_advance_phase(esp->current_SC, in_msgin);
- return esp_do_msgin(esp);
-}
-
-static int esp_enter_cmd(struct esp *esp)
-{
- esp_advance_phase(esp->current_SC, in_cmdbegin);
- return esp_do_cmdbegin(esp);
-}
-
-static int esp_enter_badphase(struct esp *esp)
-{
- ESPLOG(("esp%d: Bizarre bus phase %2x.\n", esp->esp_id,
- esp->sreg & ESP_STAT_PMASK));
- return do_reset_bus;
-}
-
-typedef int (*espfunc_t)(struct esp *);
-
-static espfunc_t phase_vector[] = {
- esp_do_data, /* ESP_DOP */
- esp_do_data, /* ESP_DIP */
- esp_enter_cmd, /* ESP_CMDP */
- esp_enter_status, /* ESP_STATP */
- esp_enter_badphase, /* ESP_STAT_PMSG */
- esp_enter_badphase, /* ESP_STAT_PMSG | ESP_STAT_PIO */
- esp_enter_msgout, /* ESP_MOP */
- esp_enter_msgin, /* ESP_MIP */
-};
-
-/* The target has control of the bus and we have to see where it has
- * taken us.
- */
-static int esp_do_phase_determine(struct esp *esp)
-{
- if ((esp->ireg & ESP_INTR_DC) != 0)
- return esp_disconnect_amidst_phases(esp);
- return phase_vector[esp->sreg & ESP_STAT_PMASK](esp);
-}
-
-/* First interrupt after exec'ing a cmd comes here. */
-static int esp_select_complete(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- struct esp_device *esp_dev = SCptr->device->hostdata;
- int cmd_bytes_sent, fcnt;
-
- if (esp->erev != fashme)
- esp->seqreg = (sbus_readb(esp->eregs + ESP_SSTEP) & ESP_STEP_VBITS);
-
- if (esp->erev == fashme)
- fcnt = esp->hme_fifo_workaround_count;
- else
- fcnt = (sbus_readb(esp->eregs + ESP_FFLAGS) & ESP_FF_FBYTES);
-
- cmd_bytes_sent = esp_bytes_sent(esp, fcnt);
- dma_invalidate(esp);
-
- /* Let's check to see if a reselect happened
- * while we we're trying to select. This must
- * be checked first.
- */
- if (esp->ireg == (ESP_INTR_RSEL | ESP_INTR_FDONE)) {
- esp_reconnect(esp, SCptr);
- return esp_do_reconnect(esp);
- }
-
- /* Looks like things worked, we should see a bus service &
- * a function complete interrupt at this point. Note we
- * are doing a direct comparison because we don't want to
- * be fooled into thinking selection was successful if
- * ESP_INTR_DC is set, see below.
- */
- if (esp->ireg == (ESP_INTR_FDONE | ESP_INTR_BSERV)) {
- /* target speaks... */
- esp->targets_present |= (1<<SCptr->device->id);
-
- /* What if the target ignores the sdtr? */
- if (esp->snip)
- esp_dev->sync = 1;
-
- /* See how far, if at all, we got in getting
- * the information out to the target.
- */
- switch (esp->seqreg) {
- default:
-
- case ESP_STEP_ASEL:
- /* Arbitration won, target selected, but
- * we are in some phase which is not command
- * phase nor is it message out phase.
- *
- * XXX We've confused the target, obviously.
- * XXX So clear it's state, but we also end
- * XXX up clearing everyone elses. That isn't
- * XXX so nice. I'd like to just reset this
- * XXX target, but if I cannot even get it's
- * XXX attention and finish selection to talk
- * XXX to it, there is not much more I can do.
- * XXX If we have a loaded bus we're going to
- * XXX spend the next second or so renegotiating
- * XXX for synchronous transfers.
- */
- ESPLOG(("esp%d: STEP_ASEL for tgt %d\n",
- esp->esp_id, SCptr->device->id));
-
- case ESP_STEP_SID:
- /* Arbitration won, target selected, went
- * to message out phase, sent one message
- * byte, then we stopped. ATN is asserted
- * on the SCSI bus and the target is still
- * there hanging on. This is a legal
- * sequence step if we gave the ESP a select
- * and stop command.
- *
- * XXX See above, I could set the borken flag
- * XXX in the device struct and retry the
- * XXX command. But would that help for
- * XXX tagged capable targets?
- */
-
- case ESP_STEP_NCMD:
- /* Arbitration won, target selected, maybe
- * sent the one message byte in message out
- * phase, but we did not go to command phase
- * in the end. Actually, we could have sent
- * only some of the message bytes if we tried
- * to send out the entire identify and tag
- * message using ESP_CMD_SA3.
- */
- cmd_bytes_sent = 0;
- break;
-
- case ESP_STEP_PPC:
- /* No, not the powerPC pinhead. Arbitration
- * won, all message bytes sent if we went to
- * message out phase, went to command phase
- * but only part of the command was sent.
- *
- * XXX I've seen this, but usually in conjunction
- * XXX with a gross error which appears to have
- * XXX occurred between the time I told the
- * XXX ESP to arbitrate and when I got the
- * XXX interrupt. Could I have misloaded the
- * XXX command bytes into the fifo? Actually,
- * XXX I most likely missed a phase, and therefore
- * XXX went into never never land and didn't even
- * XXX know it. That was the old driver though.
- * XXX What is even more peculiar is that the ESP
- * XXX showed the proper function complete and
- * XXX bus service bits in the interrupt register.
- */
-
- case ESP_STEP_FINI4:
- case ESP_STEP_FINI5:
- case ESP_STEP_FINI6:
- case ESP_STEP_FINI7:
- /* Account for the identify message */
- if (SCptr->SCp.phase == in_slct_norm)
- cmd_bytes_sent -= 1;
- };
-
- if (esp->erev != fashme)
- esp_cmd(esp, ESP_CMD_NULL);
-
- /* Be careful, we could really get fucked during synchronous
- * data transfers if we try to flush the fifo now.
- */
- if ((esp->erev != fashme) && /* not a Happy Meal and... */
- !fcnt && /* Fifo is empty and... */
- /* either we are not doing synchronous transfers or... */
- (!esp_dev->sync_max_offset ||
- /* We are not going into data in phase. */
- ((esp->sreg & ESP_STAT_PMASK) != ESP_DIP)))
- esp_cmd(esp, ESP_CMD_FLUSH); /* flush is safe */
-
- /* See how far we got if this is not a slow command. */
- if (!esp->esp_slowcmd) {
- if (cmd_bytes_sent < 0)
- cmd_bytes_sent = 0;
- if (cmd_bytes_sent != SCptr->cmd_len) {
- /* Crapola, mark it as a slowcmd
- * so that we have some chance of
- * keeping the command alive with
- * good luck.
- *
- * XXX Actually, if we didn't send it all
- * XXX this means either we didn't set things
- * XXX up properly (driver bug) or the target
- * XXX or the ESP detected parity on one of
- * XXX the command bytes. This makes much
- * XXX more sense, and therefore this code
- * XXX should be changed to send out a
- * XXX parity error message or if the status
- * XXX register shows no parity error then
- * XXX just expect the target to bring the
- * XXX bus into message in phase so that it
- * XXX can send us the parity error message.
- * XXX SCSI sucks...
- */
- esp->esp_slowcmd = 1;
- esp->esp_scmdp = &(SCptr->cmnd[cmd_bytes_sent]);
- esp->esp_scmdleft = (SCptr->cmd_len - cmd_bytes_sent);
- }
- }
-
- /* Now figure out where we went. */
- esp_advance_phase(SCptr, in_the_dark);
- return esp_do_phase_determine(esp);
- }
-
- /* Did the target even make it? */
- if (esp->ireg == ESP_INTR_DC) {
- /* wheee... nobody there or they didn't like
- * what we told it to do, clean up.
- */
-
- /* If anyone is off the bus, but working on
- * a command in the background for us, tell
- * the ESP to listen for them.
- */
- if (esp->disconnected_SC)
- esp_cmd(esp, ESP_CMD_ESEL);
-
- if (((1<<SCptr->device->id) & esp->targets_present) &&
- esp->seqreg != 0 &&
- (esp->cur_msgout[0] == EXTENDED_MESSAGE) &&
- (SCptr->SCp.phase == in_slct_msg ||
- SCptr->SCp.phase == in_slct_stop)) {
- /* shit */
- esp->snip = 0;
- ESPLOG(("esp%d: Failed synchronous negotiation for target %d "
- "lun %d\n", esp->esp_id, SCptr->device->id, SCptr->device->lun));
- esp_dev->sync_max_offset = 0;
- esp_dev->sync_min_period = 0;
- esp_dev->sync = 1; /* so we don't negotiate again */
-
- /* Run the command again, this time though we
- * won't try to negotiate for synchronous transfers.
- *
- * XXX I'd like to do something like send an
- * XXX INITIATOR_ERROR or ABORT message to the
- * XXX target to tell it, "Sorry I confused you,
- * XXX please come back and I will be nicer next
- * XXX time". But that requires having the target
- * XXX on the bus, and it has dropped BSY on us.
- */
- esp->current_SC = NULL;
- esp_advance_phase(SCptr, not_issued);
- prepend_SC(&esp->issue_SC, SCptr);
- esp_exec_cmd(esp);
- return do_intr_end;
- }
-
- /* Ok, this is normal, this is what we see during boot
- * or whenever when we are scanning the bus for targets.
- * But first make sure that is really what is happening.
- */
- if (((1<<SCptr->device->id) & esp->targets_present)) {
- ESPLOG(("esp%d: Warning, live target %d not responding to "
- "selection.\n", esp->esp_id, SCptr->device->id));
-
- /* This _CAN_ happen. The SCSI standard states that
- * the target is to _not_ respond to selection if
- * _it_ detects bad parity on the bus for any reason.
- * Therefore, we assume that if we've talked successfully
- * to this target before, bad parity is the problem.
- */
- esp_done(esp, (DID_PARITY << 16));
- } else {
- /* Else, there really isn't anyone there. */
- ESPMISC(("esp: selection failure, maybe nobody there?\n"));
- ESPMISC(("esp: target %d lun %d\n",
- SCptr->device->id, SCptr->device->lun));
- esp_done(esp, (DID_BAD_TARGET << 16));
- }
- return do_intr_end;
- }
-
- ESPLOG(("esp%d: Selection failure.\n", esp->esp_id));
- printk("esp%d: Currently -- ", esp->esp_id);
- esp_print_ireg(esp->ireg); printk(" ");
- esp_print_statreg(esp->sreg); printk(" ");
- esp_print_seqreg(esp->seqreg); printk("\n");
- printk("esp%d: New -- ", esp->esp_id);
- esp->sreg = sbus_readb(esp->eregs + ESP_STATUS);
- esp->seqreg = sbus_readb(esp->eregs + ESP_SSTEP);
- esp->ireg = sbus_readb(esp->eregs + ESP_INTRPT);
- esp_print_ireg(esp->ireg); printk(" ");
- esp_print_statreg(esp->sreg); printk(" ");
- esp_print_seqreg(esp->seqreg); printk("\n");
- ESPLOG(("esp%d: resetting bus\n", esp->esp_id));
- return do_reset_bus; /* ugh... */
-}
-
-/* Continue reading bytes for msgin phase. */
-static int esp_do_msgincont(struct esp *esp)
-{
- if (esp->ireg & ESP_INTR_BSERV) {
- /* in the right phase too? */
- if ((esp->sreg & ESP_STAT_PMASK) == ESP_MIP) {
- /* phew... */
- esp_cmd(esp, ESP_CMD_TI);
- esp_advance_phase(esp->current_SC, in_msgindone);
- return do_intr_end;
- }
-
- /* We changed phase but ESP shows bus service,
- * in this case it is most likely that we, the
- * hacker who has been up for 20hrs straight
- * staring at the screen, drowned in coffee
- * smelling like retched cigarette ashes
- * have miscoded something..... so, try to
- * recover as best we can.
- */
- ESPLOG(("esp%d: message in mis-carriage.\n", esp->esp_id));
- }
- esp_advance_phase(esp->current_SC, in_the_dark);
- return do_phase_determine;
-}
-
-static int check_singlebyte_msg(struct esp *esp)
-{
- esp->prevmsgin = esp->cur_msgin[0];
- if (esp->cur_msgin[0] & 0x80) {
- /* wheee... */
- ESPLOG(("esp%d: target sends identify amidst phases\n",
- esp->esp_id));
- esp_advance_phase(esp->current_SC, in_the_dark);
- return 0;
- } else if (((esp->cur_msgin[0] & 0xf0) == 0x20) ||
- (esp->cur_msgin[0] == EXTENDED_MESSAGE)) {
- esp->msgin_len = 2;
- esp_advance_phase(esp->current_SC, in_msgincont);
- return 0;
- }
- esp_advance_phase(esp->current_SC, in_the_dark);
- switch (esp->cur_msgin[0]) {
- default:
- /* We don't want to hear about it. */
- ESPLOG(("esp%d: msg %02x which we don't know about\n", esp->esp_id,
- esp->cur_msgin[0]));
- return MESSAGE_REJECT;
-
- case NOP:
- ESPLOG(("esp%d: target %d sends a nop\n", esp->esp_id,
- esp->current_SC->device->id));
- return 0;
-
- case RESTORE_POINTERS:
- /* In this case we might also have to backup the
- * "slow command" pointer. It is rare to get such
- * a save/restore pointer sequence so early in the
- * bus transition sequences, but cover it.
- */
- if (esp->esp_slowcmd) {
- esp->esp_scmdleft = esp->current_SC->cmd_len;
- esp->esp_scmdp = &esp->current_SC->cmnd[0];
- }
- esp_restore_pointers(esp, esp->current_SC);
- return 0;
-
- case SAVE_POINTERS:
- esp_save_pointers(esp, esp->current_SC);
- return 0;
-
- case COMMAND_COMPLETE:
- case DISCONNECT:
- /* Freeing the bus, let it go. */
- esp->current_SC->SCp.phase = in_freeing;
- return 0;
-
- case MESSAGE_REJECT:
- ESPMISC(("msg reject, "));
- if (esp->prevmsgout == EXTENDED_MESSAGE) {
- struct esp_device *esp_dev = esp->current_SC->device->hostdata;
-
- /* Doesn't look like this target can
- * do synchronous or WIDE transfers.
- */
- ESPSDTR(("got reject, was trying nego, clearing sync/WIDE\n"));
- esp_dev->sync = 1;
- esp_dev->wide = 1;
- esp_dev->sync_min_period = 0;
- esp_dev->sync_max_offset = 0;
- return 0;
- } else {
- ESPMISC(("not sync nego, sending ABORT\n"));
- return ABORT;
- }
- };
-}
-
-/* Target negotiates for synchronous transfers before we do, this
- * is legal although very strange. What is even funnier is that
- * the SCSI2 standard specifically recommends against targets doing
- * this because so many initiators cannot cope with this occurring.
- */
-static int target_with_ants_in_pants(struct esp *esp,
- struct scsi_cmnd *SCptr,
- struct esp_device *esp_dev)
-{
- if (esp_dev->sync || SCptr->device->borken) {
- /* sorry, no can do */
- ESPSDTR(("forcing to async, "));
- build_sync_nego_msg(esp, 0, 0);
- esp_dev->sync = 1;
- esp->snip = 1;
- ESPLOG(("esp%d: hoping for msgout\n", esp->esp_id));
- esp_advance_phase(SCptr, in_the_dark);
- return EXTENDED_MESSAGE;
- }
-
- /* Ok, we'll check them out... */
- return 0;
-}
-
-static void sync_report(struct esp *esp)
-{
- int msg3, msg4;
- char *type;
-
- msg3 = esp->cur_msgin[3];
- msg4 = esp->cur_msgin[4];
- if (msg4) {
- int hz = 1000000000 / (msg3 * 4);
- int integer = hz / 1000000;
- int fraction = (hz - (integer * 1000000)) / 10000;
- if ((esp->erev == fashme) &&
- (esp->config3[esp->current_SC->device->id] & ESP_CONFIG3_EWIDE)) {
- type = "FAST-WIDE";
- integer <<= 1;
- fraction <<= 1;
- } else if ((msg3 * 4) < 200) {
- type = "FAST";
- } else {
- type = "synchronous";
- }
-
- /* Do not transform this back into one big printk
- * again, it triggers a bug in our sparc64-gcc272
- * sibling call optimization. -DaveM
- */
- ESPLOG((KERN_INFO "esp%d: target %d ",
- esp->esp_id, esp->current_SC->device->id));
- ESPLOG(("[period %dns offset %d %d.%02dMHz ",
- (int) msg3 * 4, (int) msg4,
- integer, fraction));
- ESPLOG(("%s SCSI%s]\n", type,
- (((msg3 * 4) < 200) ? "-II" : "")));
- } else {
- ESPLOG((KERN_INFO "esp%d: target %d asynchronous\n",
- esp->esp_id, esp->current_SC->device->id));
- }
-}
-
-static int check_multibyte_msg(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- struct esp_device *esp_dev = SCptr->device->hostdata;
- u8 regval = 0;
- int message_out = 0;
-
- ESPSDTR(("chk multibyte msg: "));
- if (esp->cur_msgin[2] == EXTENDED_SDTR) {
- int period = esp->cur_msgin[3];
- int offset = esp->cur_msgin[4];
-
- ESPSDTR(("is sync nego response, "));
- if (!esp->snip) {
- int rval;
-
- /* Target negotiates first! */
- ESPSDTR(("target jumps the gun, "));
- message_out = EXTENDED_MESSAGE; /* we must respond */
- rval = target_with_ants_in_pants(esp, SCptr, esp_dev);
- if (rval)
- return rval;
- }
-
- ESPSDTR(("examining sdtr, "));
-
- /* Offset cannot be larger than ESP fifo size. */
- if (offset > 15) {
- ESPSDTR(("offset too big %2x, ", offset));
- offset = 15;
- ESPSDTR(("sending back new offset\n"));
- build_sync_nego_msg(esp, period, offset);
- return EXTENDED_MESSAGE;
- }
-
- if (offset && period > esp->max_period) {
- /* Yeee, async for this slow device. */
- ESPSDTR(("period too long %2x, ", period));
- build_sync_nego_msg(esp, 0, 0);
- ESPSDTR(("hoping for msgout\n"));
- esp_advance_phase(esp->current_SC, in_the_dark);
- return EXTENDED_MESSAGE;
- } else if (offset && period < esp->min_period) {
- ESPSDTR(("period too short %2x, ", period));
- period = esp->min_period;
- if (esp->erev > esp236)
- regval = 4;
- else
- regval = 5;
- } else if (offset) {
- int tmp;
-
- ESPSDTR(("period is ok, "));
- tmp = esp->ccycle / 1000;
- regval = (((period << 2) + tmp - 1) / tmp);
- if (regval && ((esp->erev == fas100a ||
- esp->erev == fas236 ||
- esp->erev == fashme))) {
- if (period >= 50)
- regval--;
- }
- }
-
- if (offset) {
- u8 bit;
-
- esp_dev->sync_min_period = (regval & 0x1f);
- esp_dev->sync_max_offset = (offset | esp->radelay);
- if (esp->erev == fas100a || esp->erev == fas236 || esp->erev == fashme) {
- if ((esp->erev == fas100a) || (esp->erev == fashme))
- bit = ESP_CONFIG3_FAST;
- else
- bit = ESP_CONFIG3_FSCSI;
- if (period < 50) {
- /* On FAS366, if using fast-20 synchronous transfers
- * we need to make sure the REQ/ACK assert/deassert
- * control bits are clear.
- */
- if (esp->erev == fashme)
- esp_dev->sync_max_offset &= ~esp->radelay;
- esp->config3[SCptr->device->id] |= bit;
- } else {
- esp->config3[SCptr->device->id] &= ~bit;
- }
- esp->prev_cfg3 = esp->config3[SCptr->device->id];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- }
- esp->prev_soff = esp_dev->sync_max_offset;
- esp->prev_stp = esp_dev->sync_min_period;
- sbus_writeb(esp->prev_soff, esp->eregs + ESP_SOFF);
- sbus_writeb(esp->prev_stp, esp->eregs + ESP_STP);
- ESPSDTR(("soff=%2x stp=%2x cfg3=%2x\n",
- esp_dev->sync_max_offset,
- esp_dev->sync_min_period,
- esp->config3[SCptr->device->id]));
-
- esp->snip = 0;
- } else if (esp_dev->sync_max_offset) {
- u8 bit;
-
- /* back to async mode */
- ESPSDTR(("unaccaptable sync nego, forcing async\n"));
- esp_dev->sync_max_offset = 0;
- esp_dev->sync_min_period = 0;
- esp->prev_soff = 0;
- esp->prev_stp = 0;
- sbus_writeb(esp->prev_soff, esp->eregs + ESP_SOFF);
- sbus_writeb(esp->prev_stp, esp->eregs + ESP_STP);
- if (esp->erev == fas100a || esp->erev == fas236 || esp->erev == fashme) {
- if ((esp->erev == fas100a) || (esp->erev == fashme))
- bit = ESP_CONFIG3_FAST;
- else
- bit = ESP_CONFIG3_FSCSI;
- esp->config3[SCptr->device->id] &= ~bit;
- esp->prev_cfg3 = esp->config3[SCptr->device->id];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
- }
- }
-
- sync_report(esp);
-
- ESPSDTR(("chk multibyte msg: sync is known, "));
- esp_dev->sync = 1;
-
- if (message_out) {
- ESPLOG(("esp%d: sending sdtr back, hoping for msgout\n",
- esp->esp_id));
- build_sync_nego_msg(esp, period, offset);
- esp_advance_phase(SCptr, in_the_dark);
- return EXTENDED_MESSAGE;
- }
-
- ESPSDTR(("returning zero\n"));
- esp_advance_phase(SCptr, in_the_dark); /* ...or else! */
- return 0;
- } else if (esp->cur_msgin[2] == EXTENDED_WDTR) {
- int size = 8 << esp->cur_msgin[3];
-
- esp->wnip = 0;
- if (esp->erev != fashme) {
- ESPLOG(("esp%d: AIEEE wide msg received and not HME.\n",
- esp->esp_id));
- message_out = MESSAGE_REJECT;
- } else if (size > 16) {
- ESPLOG(("esp%d: AIEEE wide transfer for %d size "
- "not supported.\n", esp->esp_id, size));
- message_out = MESSAGE_REJECT;
- } else {
- /* Things look good; let's see what we got. */
- if (size == 16) {
- /* Set config 3 register for this target. */
- esp->config3[SCptr->device->id] |= ESP_CONFIG3_EWIDE;
- } else {
- /* Just make sure it was one byte sized. */
- if (size != 8) {
- ESPLOG(("esp%d: Aieee, wide nego of %d size.\n",
- esp->esp_id, size));
- message_out = MESSAGE_REJECT;
- goto finish;
- }
- /* Pure paranoia. */
- esp->config3[SCptr->device->id] &= ~(ESP_CONFIG3_EWIDE);
- }
- esp->prev_cfg3 = esp->config3[SCptr->device->id];
- sbus_writeb(esp->prev_cfg3, esp->eregs + ESP_CFG3);
-
- /* Regardless, next try for sync transfers. */
- build_sync_nego_msg(esp, esp->sync_defp, 15);
- esp_dev->sync = 1;
- esp->snip = 1;
- message_out = EXTENDED_MESSAGE;
- }
- } else if (esp->cur_msgin[2] == EXTENDED_MODIFY_DATA_POINTER) {
- ESPLOG(("esp%d: rejecting modify data ptr msg\n", esp->esp_id));
- message_out = MESSAGE_REJECT;
- }
-finish:
- esp_advance_phase(SCptr, in_the_dark);
- return message_out;
-}
-
-static int esp_do_msgindone(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- int message_out = 0, it = 0, rval;
-
- rval = skipahead1(esp, SCptr, in_msgin, in_msgindone);
- if (rval)
- return rval;
- if (SCptr->SCp.sent_command != in_status) {
- if (!(esp->ireg & ESP_INTR_DC)) {
- if (esp->msgin_len && (esp->sreg & ESP_STAT_PERR)) {
- message_out = MSG_PARITY_ERROR;
- esp_cmd(esp, ESP_CMD_FLUSH);
- } else if (esp->erev != fashme &&
- (it = (sbus_readb(esp->eregs + ESP_FFLAGS) & ESP_FF_FBYTES)) != 1) {
- /* We certainly dropped the ball somewhere. */
- message_out = INITIATOR_ERROR;
- esp_cmd(esp, ESP_CMD_FLUSH);
- } else if (!esp->msgin_len) {
- if (esp->erev == fashme)
- it = esp->hme_fifo_workaround_buffer[0];
- else
- it = sbus_readb(esp->eregs + ESP_FDATA);
- esp_advance_phase(SCptr, in_msgincont);
- } else {
- /* it is ok and we want it */
- if (esp->erev == fashme)
- it = esp->cur_msgin[esp->msgin_ctr] =
- esp->hme_fifo_workaround_buffer[0];
- else
- it = esp->cur_msgin[esp->msgin_ctr] =
- sbus_readb(esp->eregs + ESP_FDATA);
- esp->msgin_ctr++;
- }
- } else {
- esp_advance_phase(SCptr, in_the_dark);
- return do_work_bus;
- }
- } else {
- it = esp->cur_msgin[0];
- }
- if (!message_out && esp->msgin_len) {
- if (esp->msgin_ctr < esp->msgin_len) {
- esp_advance_phase(SCptr, in_msgincont);
- } else if (esp->msgin_len == 1) {
- message_out = check_singlebyte_msg(esp);
- } else if (esp->msgin_len == 2) {
- if (esp->cur_msgin[0] == EXTENDED_MESSAGE) {
- if ((it + 2) >= 15) {
- message_out = MESSAGE_REJECT;
- } else {
- esp->msgin_len = (it + 2);
- esp_advance_phase(SCptr, in_msgincont);
- }
- } else {
- message_out = MESSAGE_REJECT; /* foo on you */
- }
- } else {
- message_out = check_multibyte_msg(esp);
- }
- }
- if (message_out < 0) {
- return -message_out;
- } else if (message_out) {
- if (((message_out != 1) &&
- ((message_out < 0x20) || (message_out & 0x80))))
- esp->msgout_len = 1;
- esp->cur_msgout[0] = message_out;
- esp_cmd(esp, ESP_CMD_SATN);
- esp_advance_phase(SCptr, in_the_dark);
- esp->msgin_len = 0;
- }
- esp->sreg = sbus_readb(esp->eregs + ESP_STATUS);
- esp->sreg &= ~(ESP_STAT_INTR);
- if ((esp->sreg & (ESP_STAT_PMSG|ESP_STAT_PCD)) == (ESP_STAT_PMSG|ESP_STAT_PCD))
- esp_cmd(esp, ESP_CMD_MOK);
- if ((SCptr->SCp.sent_command == in_msgindone) &&
- (SCptr->SCp.phase == in_freeing))
- return esp_do_freebus(esp);
- return do_intr_end;
-}
-
-static int esp_do_cmdbegin(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
-
- esp_advance_phase(SCptr, in_cmdend);
- if (esp->erev == fashme) {
- u32 tmp = sbus_readl(esp->dregs + DMA_CSR);
- int i;
-
- for (i = 0; i < esp->esp_scmdleft; i++)
- esp->esp_command[i] = *esp->esp_scmdp++;
- esp->esp_scmdleft = 0;
- esp_cmd(esp, ESP_CMD_FLUSH);
- esp_setcount(esp->eregs, i, 1);
- esp_cmd(esp, (ESP_CMD_DMA | ESP_CMD_TI));
- tmp |= (DMA_SCSI_DISAB | DMA_ENABLE);
- tmp &= ~(DMA_ST_WRITE);
- sbus_writel(i, esp->dregs + DMA_COUNT);
- sbus_writel(esp->esp_command_dvma, esp->dregs + DMA_ADDR);
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- } else {
- u8 tmp;
-
- esp_cmd(esp, ESP_CMD_FLUSH);
- tmp = *esp->esp_scmdp++;
- esp->esp_scmdleft--;
- sbus_writeb(tmp, esp->eregs + ESP_FDATA);
- esp_cmd(esp, ESP_CMD_TI);
- }
- return do_intr_end;
-}
-
-static int esp_do_cmddone(struct esp *esp)
-{
- if (esp->erev == fashme)
- dma_invalidate(esp);
- else
- esp_cmd(esp, ESP_CMD_NULL);
-
- if (esp->ireg & ESP_INTR_BSERV) {
- esp_advance_phase(esp->current_SC, in_the_dark);
- return esp_do_phase_determine(esp);
- }
-
- ESPLOG(("esp%d: in do_cmddone() but didn't get BSERV interrupt.\n",
- esp->esp_id));
- return do_reset_bus;
-}
-
-static int esp_do_msgout(struct esp *esp)
-{
- esp_cmd(esp, ESP_CMD_FLUSH);
- switch (esp->msgout_len) {
- case 1:
- if (esp->erev == fashme)
- hme_fifo_push(esp, &esp->cur_msgout[0], 1);
- else
- sbus_writeb(esp->cur_msgout[0], esp->eregs + ESP_FDATA);
-
- esp_cmd(esp, ESP_CMD_TI);
- break;
-
- case 2:
- esp->esp_command[0] = esp->cur_msgout[0];
- esp->esp_command[1] = esp->cur_msgout[1];
-
- if (esp->erev == fashme) {
- hme_fifo_push(esp, &esp->cur_msgout[0], 2);
- esp_cmd(esp, ESP_CMD_TI);
- } else {
- dma_setup(esp, esp->esp_command_dvma, 2, 0);
- esp_setcount(esp->eregs, 2, 0);
- esp_cmd(esp, ESP_CMD_DMA | ESP_CMD_TI);
- }
- break;
-
- case 4:
- esp->esp_command[0] = esp->cur_msgout[0];
- esp->esp_command[1] = esp->cur_msgout[1];
- esp->esp_command[2] = esp->cur_msgout[2];
- esp->esp_command[3] = esp->cur_msgout[3];
- esp->snip = 1;
-
- if (esp->erev == fashme) {
- hme_fifo_push(esp, &esp->cur_msgout[0], 4);
- esp_cmd(esp, ESP_CMD_TI);
- } else {
- dma_setup(esp, esp->esp_command_dvma, 4, 0);
- esp_setcount(esp->eregs, 4, 0);
- esp_cmd(esp, ESP_CMD_DMA | ESP_CMD_TI);
- }
- break;
-
- case 5:
- esp->esp_command[0] = esp->cur_msgout[0];
- esp->esp_command[1] = esp->cur_msgout[1];
- esp->esp_command[2] = esp->cur_msgout[2];
- esp->esp_command[3] = esp->cur_msgout[3];
- esp->esp_command[4] = esp->cur_msgout[4];
- esp->snip = 1;
-
- if (esp->erev == fashme) {
- hme_fifo_push(esp, &esp->cur_msgout[0], 5);
- esp_cmd(esp, ESP_CMD_TI);
- } else {
- dma_setup(esp, esp->esp_command_dvma, 5, 0);
- esp_setcount(esp->eregs, 5, 0);
- esp_cmd(esp, ESP_CMD_DMA | ESP_CMD_TI);
- }
- break;
-
- default:
- /* whoops */
- ESPMISC(("bogus msgout sending NOP\n"));
- esp->cur_msgout[0] = NOP;
-
- if (esp->erev == fashme) {
- hme_fifo_push(esp, &esp->cur_msgout[0], 1);
- } else {
- sbus_writeb(esp->cur_msgout[0], esp->eregs + ESP_FDATA);
- }
-
- esp->msgout_len = 1;
- esp_cmd(esp, ESP_CMD_TI);
- break;
- };
-
- esp_advance_phase(esp->current_SC, in_msgoutdone);
- return do_intr_end;
-}
-
-static int esp_do_msgoutdone(struct esp *esp)
-{
- if (esp->msgout_len > 1) {
- /* XXX HME/FAS ATN deassert workaround required,
- * XXX no DMA flushing, only possible ESP_CMD_FLUSH
- * XXX to kill the fifo.
- */
- if (esp->erev != fashme) {
- u32 tmp;
-
- while ((tmp = sbus_readl(esp->dregs + DMA_CSR)) & DMA_PEND_READ)
- udelay(1);
- tmp &= ~DMA_ENABLE;
- sbus_writel(tmp, esp->dregs + DMA_CSR);
- dma_invalidate(esp);
- } else {
- esp_cmd(esp, ESP_CMD_FLUSH);
- }
- }
- if (!(esp->ireg & ESP_INTR_DC)) {
- if (esp->erev != fashme)
- esp_cmd(esp, ESP_CMD_NULL);
- switch (esp->sreg & ESP_STAT_PMASK) {
- case ESP_MOP:
- /* whoops, parity error */
- ESPLOG(("esp%d: still in msgout, parity error assumed\n",
- esp->esp_id));
- if (esp->msgout_len > 1)
- esp_cmd(esp, ESP_CMD_SATN);
- esp_advance_phase(esp->current_SC, in_msgout);
- return do_work_bus;
-
- case ESP_DIP:
- break;
-
- default:
- /* Happy Meal fifo is touchy... */
- if ((esp->erev != fashme) &&
- !fcount(esp) &&
- !(((struct esp_device *)esp->current_SC->device->hostdata)->sync_max_offset))
- esp_cmd(esp, ESP_CMD_FLUSH);
- break;
-
- };
- } else {
- ESPLOG(("esp%d: disconnect, resetting bus\n", esp->esp_id));
- return do_reset_bus;
- }
-
- /* If we sent out a synchronous negotiation message, update
- * our state.
- */
- if (esp->cur_msgout[2] == EXTENDED_MESSAGE &&
- esp->cur_msgout[4] == EXTENDED_SDTR) {
- esp->snip = 1; /* anal retentiveness... */
- }
-
- esp->prevmsgout = esp->cur_msgout[0];
- esp->msgout_len = 0;
- esp_advance_phase(esp->current_SC, in_the_dark);
- return esp_do_phase_determine(esp);
-}
-
-static int esp_bus_unexpected(struct esp *esp)
-{
- ESPLOG(("esp%d: command in weird state %2x\n",
- esp->esp_id, esp->current_SC->SCp.phase));
- return do_reset_bus;
-}
-
-static espfunc_t bus_vector[] = {
- esp_do_data_finale,
- esp_do_data_finale,
- esp_bus_unexpected,
- esp_do_msgin,
- esp_do_msgincont,
- esp_do_msgindone,
- esp_do_msgout,
- esp_do_msgoutdone,
- esp_do_cmdbegin,
- esp_do_cmddone,
- esp_do_status,
- esp_do_freebus,
- esp_do_phase_determine,
- esp_bus_unexpected,
- esp_bus_unexpected,
- esp_bus_unexpected,
-};
-
-/* This is the second tier in our dual-level SCSI state machine. */
-static int esp_work_bus(struct esp *esp)
-{
- struct scsi_cmnd *SCptr = esp->current_SC;
- unsigned int phase;
-
- ESPBUS(("esp_work_bus: "));
- if (!SCptr) {
- ESPBUS(("reconnect\n"));
- return esp_do_reconnect(esp);
- }
- phase = SCptr->SCp.phase;
- if ((phase & 0xf0) == in_phases_mask)
- return bus_vector[(phase & 0x0f)](esp);
- else if ((phase & 0xf0) == in_slct_mask)
- return esp_select_complete(esp);
- else
- return esp_bus_unexpected(esp);
-}
-
-static espfunc_t isvc_vector[] = {
- NULL,
- esp_do_phase_determine,
- esp_do_resetbus,
- esp_finish_reset,
- esp_work_bus
-};
-
-/* Main interrupt handler for an esp adapter. */
-static void esp_handle(struct esp *esp)
-{
- struct scsi_cmnd *SCptr;
- int what_next = do_intr_end;
-
- SCptr = esp->current_SC;
-
- /* Check for errors. */
- esp->sreg = sbus_readb(esp->eregs + ESP_STATUS);
- esp->sreg &= (~ESP_STAT_INTR);
- if (esp->erev == fashme) {
- esp->sreg2 = sbus_readb(esp->eregs + ESP_STATUS2);
- esp->seqreg = (sbus_readb(esp->eregs + ESP_SSTEP) & ESP_STEP_VBITS);
- }
-
- if (esp->sreg & (ESP_STAT_SPAM)) {
- /* Gross error, could be due to one of:
- *
- * - top of fifo overwritten, could be because
- * we tried to do a synchronous transfer with
- * an offset greater than ESP fifo size
- *
- * - top of command register overwritten
- *
- * - DMA setup to go in one direction, SCSI
- * bus points in the other, whoops
- *
- * - weird phase change during asynchronous
- * data phase while we are initiator
- */
- ESPLOG(("esp%d: Gross error sreg=%2x\n", esp->esp_id, esp->sreg));
-
- /* If a command is live on the bus we cannot safely
- * reset the bus, so we'll just let the pieces fall
- * where they may. Here we are hoping that the
- * target will be able to cleanly go away soon
- * so we can safely reset things.
- */
- if (!SCptr) {
- ESPLOG(("esp%d: No current cmd during gross error, "
- "resetting bus\n", esp->esp_id));
- what_next = do_reset_bus;
- goto state_machine;
- }
- }
-
- if (sbus_readl(esp->dregs + DMA_CSR) & DMA_HNDL_ERROR) {
- /* A DMA gate array error. Here we must
- * be seeing one of two things. Either the
- * virtual to physical address translation
- * on the SBUS could not occur, else the
- * translation it did get pointed to a bogus
- * page. Ho hum...
- */
- ESPLOG(("esp%d: DMA error %08x\n", esp->esp_id,
- sbus_readl(esp->dregs + DMA_CSR)));
-
- /* DMA gate array itself must be reset to clear the
- * error condition.
- */
- esp_reset_dma(esp);
-
- what_next = do_reset_bus;
- goto state_machine;
- }
-
- esp->ireg = sbus_readb(esp->eregs + ESP_INTRPT); /* Unlatch intr reg */
-
- if (esp->erev == fashme) {
- /* This chip is really losing. */
- ESPHME(("HME["));
-
- ESPHME(("sreg2=%02x,", esp->sreg2));
- /* Must latch fifo before reading the interrupt
- * register else garbage ends up in the FIFO
- * which confuses the driver utterly.
- */
- if (!(esp->sreg2 & ESP_STAT2_FEMPTY) ||
- (esp->sreg2 & ESP_STAT2_F1BYTE)) {
- ESPHME(("fifo_workaround]"));
- hme_fifo_read(esp);
- } else {
- ESPHME(("no_fifo_workaround]"));
- }
- }
-
- /* No current cmd is only valid at this point when there are
- * commands off the bus or we are trying a reset.
- */
- if (!SCptr && !esp->disconnected_SC && !(esp->ireg & ESP_INTR_SR)) {
- /* Panic is safe, since current_SC is null. */
- ESPLOG(("esp%d: no command in esp_handle()\n", esp->esp_id));
- panic("esp_handle: current_SC == penguin within interrupt!");
- }
-
- if (esp->ireg & (ESP_INTR_IC)) {
- /* Illegal command fed to ESP. Outside of obvious
- * software bugs that could cause this, there is
- * a condition with esp100 where we can confuse the
- * ESP into an erroneous illegal command interrupt
- * because it does not scrape the FIFO properly
- * for reselection. See esp100_reconnect_hwbug()
- * to see how we try very hard to avoid this.
- */
- ESPLOG(("esp%d: invalid command\n", esp->esp_id));
-
- esp_dump_state(esp);
-
- if (SCptr != NULL) {
- /* Devices with very buggy firmware can drop BSY
- * during a scatter list interrupt when using sync
- * mode transfers. We continue the transfer as
- * expected, the target drops the bus, the ESP
- * gets confused, and we get a illegal command
- * interrupt because the bus is in the disconnected
- * state now and ESP_CMD_TI is only allowed when
- * a nexus is alive on the bus.
- */
- ESPLOG(("esp%d: Forcing async and disabling disconnect for "
- "target %d\n", esp->esp_id, SCptr->device->id));
- SCptr->device->borken = 1; /* foo on you */
- }
-
- what_next = do_reset_bus;
- } else if (!(esp->ireg & ~(ESP_INTR_FDONE | ESP_INTR_BSERV | ESP_INTR_DC))) {
- if (SCptr) {
- unsigned int phase = SCptr->SCp.phase;
-
- if (phase & in_phases_mask) {
- what_next = esp_work_bus(esp);
- } else if (phase & in_slct_mask) {
- what_next = esp_select_complete(esp);
- } else {
- ESPLOG(("esp%d: interrupt for no good reason...\n",
- esp->esp_id));
- what_next = do_intr_end;
- }
- } else {
- ESPLOG(("esp%d: BSERV or FDONE or DC while SCptr==NULL\n",
- esp->esp_id));
- what_next = do_reset_bus;
- }
- } else if (esp->ireg & ESP_INTR_SR) {
- ESPLOG(("esp%d: SCSI bus reset interrupt\n", esp->esp_id));
- what_next = do_reset_complete;
- } else if (esp->ireg & (ESP_INTR_S | ESP_INTR_SATN)) {
- ESPLOG(("esp%d: AIEEE we have been selected by another initiator!\n",
- esp->esp_id));
- what_next = do_reset_bus;
- } else if (esp->ireg & ESP_INTR_RSEL) {
- if (SCptr == NULL) {
- /* This is ok. */
- what_next = esp_do_reconnect(esp);
- } else if (SCptr->SCp.phase & in_slct_mask) {
- /* Only selection code knows how to clean
- * up properly.
- */
- ESPDISC(("Reselected during selection attempt\n"));
- what_next = esp_select_complete(esp);
- } else {
- ESPLOG(("esp%d: Reselected while bus is busy\n",
- esp->esp_id));
- what_next = do_reset_bus;
- }
- }
-
- /* This is tier-one in our dual level SCSI state machine. */
-state_machine:
- while (what_next != do_intr_end) {
- if (what_next >= do_phase_determine &&
- what_next < do_intr_end) {
- what_next = isvc_vector[what_next](esp);
- } else {
- /* state is completely lost ;-( */
- ESPLOG(("esp%d: interrupt engine loses state, resetting bus\n",
- esp->esp_id));
- what_next = do_reset_bus;
- }
- }
-}
-
-/* Service only the ESP described by dev_id. */
-static irqreturn_t esp_intr(int irq, void *dev_id)
-{
- struct esp *esp = dev_id;
- unsigned long flags;
-
- spin_lock_irqsave(esp->ehost->host_lock, flags);
- if (ESP_IRQ_P(esp->dregs)) {
- ESP_INTSOFF(esp->dregs);
-
- ESPIRQ(("I[%d:%d](", smp_processor_id(), esp->esp_id));
- esp_handle(esp);
- ESPIRQ((")"));
-
- ESP_INTSON(esp->dregs);
- }
- spin_unlock_irqrestore(esp->ehost->host_lock, flags);
-
- return IRQ_HANDLED;
-}
-
-static int esp_slave_alloc(struct scsi_device *SDptr)
-{
- struct esp_device *esp_dev =
- kmalloc(sizeof(struct esp_device), GFP_ATOMIC);
-
- if (!esp_dev)
- return -ENOMEM;
- memset(esp_dev, 0, sizeof(struct esp_device));
- SDptr->hostdata = esp_dev;
- return 0;
-}
-
-static void esp_slave_destroy(struct scsi_device *SDptr)
-{
- struct esp *esp = (struct esp *) SDptr->host->hostdata;
-
- esp->targets_present &= ~(1 << SDptr->id);
- kfree(SDptr->hostdata);
- SDptr->hostdata = NULL;
-}
-
-static struct scsi_host_template esp_template = {
- .module = THIS_MODULE,
- .name = "esp",
- .info = esp_info,
- .slave_alloc = esp_slave_alloc,
- .slave_destroy = esp_slave_destroy,
- .queuecommand = esp_queue,
- .eh_abort_handler = esp_abort,
- .eh_bus_reset_handler = esp_reset,
- .can_queue = 7,
- .this_id = 7,
- .sg_tablesize = SG_ALL,
- .cmd_per_lun = 1,
- .use_clustering = ENABLE_CLUSTERING,
- .proc_name = "esp",
- .proc_info = esp_proc_info,
-};
-
-#ifndef CONFIG_SUN4
-static struct of_device_id esp_match[] = {
- {
- .name = "SUNW,esp",
- .data = &esp_template,
- },
- {
- .name = "SUNW,fas",
- .data = &esp_template,
- },
- {
- .name = "esp",
- .data = &esp_template,
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, esp_match);
-
-static struct of_platform_driver esp_sbus_driver = {
- .name = "esp",
- .match_table = esp_match,
- .probe = esp_sbus_probe,
- .remove = __devexit_p(esp_sbus_remove),
-};
-#endif
-
-static int __init esp_init(void)
-{
-#ifdef CONFIG_SUN4
- return esp_sun4_probe(&esp_template);
-#else
- return of_register_driver(&esp_sbus_driver, &sbus_bus_type);
-#endif
-}
-
-static void __exit esp_exit(void)
-{
-#ifdef CONFIG_SUN4
- esp_sun4_remove();
-#else
- of_unregister_driver(&esp_sbus_driver);
-#endif
-}
-
-MODULE_DESCRIPTION("ESP Sun SCSI driver");
-MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-module_init(esp_init);
-module_exit(esp_exit);
+++ /dev/null
-/* $Id: esp.h,v 1.29 2001/12/11 04:55:47 davem Exp $
- * esp.h: Defines and structures for the Sparc ESP (Enhanced SCSI
- * Processor) driver under Linux.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#ifndef _SPARC_ESP_H
-#define _SPARC_ESP_H
-
-/* For dvma controller register definitions. */
-#include <asm/dma.h>
-
-/* The ESP SCSI controllers have their register sets in three
- * "classes":
- *
- * 1) Registers which are both read and write.
- * 2) Registers which are read only.
- * 3) Registers which are write only.
- *
- * Yet, they all live within the same IO space.
- */
-
-/* All the ESP registers are one byte each and are accessed longwords
- * apart with a big-endian ordering to the bytes.
- */
- /* Access Description Offset */
-#define ESP_TCLOW 0x00UL /* rw Low bits of the transfer count 0x00 */
-#define ESP_TCMED 0x04UL /* rw Mid bits of the transfer count 0x04 */
-#define ESP_FDATA 0x08UL /* rw FIFO data bits 0x08 */
-#define ESP_CMD 0x0cUL /* rw SCSI command bits 0x0c */
-#define ESP_STATUS 0x10UL /* ro ESP status register 0x10 */
-#define ESP_BUSID ESP_STATUS /* wo Bus ID for select/reselect 0x10 */
-#define ESP_INTRPT 0x14UL /* ro Kind of interrupt 0x14 */
-#define ESP_TIMEO ESP_INTRPT /* wo Timeout value for select/resel 0x14 */
-#define ESP_SSTEP 0x18UL /* ro Sequence step register 0x18 */
-#define ESP_STP ESP_SSTEP /* wo Transfer period per sync 0x18 */
-#define ESP_FFLAGS 0x1cUL /* ro Bits of current FIFO info 0x1c */
-#define ESP_SOFF ESP_FFLAGS /* wo Sync offset 0x1c */
-#define ESP_CFG1 0x20UL /* rw First configuration register 0x20 */
-#define ESP_CFACT 0x24UL /* wo Clock conversion factor 0x24 */
-#define ESP_STATUS2 ESP_CFACT /* ro HME status2 register 0x24 */
-#define ESP_CTEST 0x28UL /* wo Chip test register 0x28 */
-#define ESP_CFG2 0x2cUL /* rw Second configuration register 0x2c */
-#define ESP_CFG3 0x30UL /* rw Third configuration register 0x30 */
-#define ESP_TCHI 0x38UL /* rw High bits of transfer count 0x38 */
-#define ESP_UID ESP_TCHI /* ro Unique ID code 0x38 */
-#define FAS_RLO ESP_TCHI /* rw HME extended counter 0x38 */
-#define ESP_FGRND 0x3cUL /* rw Data base for fifo 0x3c */
-#define FAS_RHI ESP_FGRND /* rw HME extended counter 0x3c */
-#define ESP_REG_SIZE 0x40UL
-
-/* Various revisions of the ESP board. */
-enum esp_rev {
- esp100 = 0x00, /* NCR53C90 - very broken */
- esp100a = 0x01, /* NCR53C90A */
- esp236 = 0x02,
- fas236 = 0x03,
- fas100a = 0x04,
- fast = 0x05,
- fashme = 0x06,
- espunknown = 0x07
-};
-
-/* We allocate one of these for each scsi device and attach it to
- * SDptr->hostdata for use in the driver
- */
-struct esp_device {
- unsigned char sync_min_period;
- unsigned char sync_max_offset;
- unsigned sync:1;
- unsigned wide:1;
- unsigned disconnect:1;
-};
-
-struct scsi_cmnd;
-
-/* We get one of these for each ESP probed. */
-struct esp {
- void __iomem *eregs; /* ESP controller registers */
- void __iomem *dregs; /* DMA controller registers */
- struct sbus_dma *dma; /* DMA controller sw state */
- struct Scsi_Host *ehost; /* Backpointer to SCSI Host */
- struct sbus_dev *sdev; /* Pointer to SBus entry */
-
- /* ESP Configuration Registers */
- u8 config1; /* Copy of the 1st config register */
- u8 config2; /* Copy of the 2nd config register */
- u8 config3[16]; /* Copy of the 3rd config register */
-
- /* The current command we are sending to the ESP chip. This esp_command
- * ptr needs to be mapped in DVMA area so we can send commands and read
- * from the ESP fifo without burning precious CPU cycles. Programmed I/O
- * sucks when we have the DVMA to do it for us. The ESP is stupid and will
- * only send out 6, 10, and 12 byte SCSI commands, others we need to send
- * one byte at a time. esp_slowcmd being set says that we are doing one
- * of the command types ESP doesn't understand, esp_scmdp keeps track of
- * which byte we are sending, esp_scmdleft says how many bytes to go.
- */
- volatile u8 *esp_command; /* Location of command (CPU view) */
- __u32 esp_command_dvma;/* Location of command (DVMA view) */
- unsigned char esp_clen; /* Length of this command */
- unsigned char esp_slowcmd;
- unsigned char *esp_scmdp;
- unsigned char esp_scmdleft;
-
- /* The following are used to determine the cause of an IRQ. Upon every
- * IRQ entry we synchronize these with the hardware registers.
- */
- u8 ireg; /* Copy of ESP interrupt register */
- u8 sreg; /* Copy of ESP status register */
- u8 seqreg; /* Copy of ESP sequence step register */
- u8 sreg2; /* Copy of HME status2 register */
-
- /* To save register writes to the ESP, which can be expensive, we
- * keep track of the previous value that various registers had for
- * the last target we connected to. If they are the same for the
- * current target, we skip the register writes as they are not needed.
- */
- u8 prev_soff, prev_stp;
- u8 prev_cfg3, __cache_pad;
-
- /* We also keep a cache of the previous FAS/HME DMA CSR register value. */
- u32 prev_hme_dmacsr;
-
- /* The HME is the biggest piece of shit I have ever seen. */
- u8 hme_fifo_workaround_buffer[16 * 2];
- u8 hme_fifo_workaround_count;
-
- /* For each target we keep track of save/restore data
- * pointer information. This needs to be updated majorly
- * when we add support for tagged queueing. -DaveM
- */
- struct esp_pointers {
- char *saved_ptr;
- struct scatterlist *saved_buffer;
- int saved_this_residual;
- int saved_buffers_residual;
- } data_pointers[16] /*XXX [MAX_TAGS_PER_TARGET]*/;
-
- /* Clock periods, frequencies, synchronization, etc. */
- unsigned int cfreq; /* Clock frequency in HZ */
- unsigned int cfact; /* Clock conversion factor */
- unsigned int raw_cfact; /* Raw copy from probing */
- unsigned int ccycle; /* One ESP clock cycle */
- unsigned int ctick; /* One ESP clock time */
- unsigned int radelay; /* FAST chip req/ack delay */
- unsigned int neg_defp; /* Default negotiation period */
- unsigned int sync_defp; /* Default sync transfer period */
- unsigned int max_period; /* longest our period can be */
- unsigned int min_period; /* shortest period we can withstand */
-
- struct esp *next; /* Next ESP we probed or NULL */
- char prom_name[64]; /* Name of ESP device from prom */
- int prom_node; /* Prom node where ESP found */
- int esp_id; /* Unique per-ESP ID number */
-
- /* For slow to medium speed input clock rates we shoot for 5mb/s,
- * but for high input clock rates we try to do 10mb/s although I
- * don't think a transfer can even run that fast with an ESP even
- * with DMA2 scatter gather pipelining.
- */
-#define SYNC_DEFP_SLOW 0x32 /* 5mb/s */
-#define SYNC_DEFP_FAST 0x19 /* 10mb/s */
-
- unsigned int snip; /* Sync. negotiation in progress */
- unsigned int wnip; /* WIDE negotiation in progress */
- unsigned int targets_present;/* targets spoken to before */
-
- int current_transfer_size; /* Set at beginning of data dma */
-
- u8 espcmdlog[32]; /* Log of current esp cmds sent. */
- u8 espcmdent; /* Current entry in esp cmd log. */
-
- /* Misc. info about this ESP */
- enum esp_rev erev; /* ESP revision */
- int irq; /* SBus IRQ for this ESP */
- int scsi_id; /* Who am I as initiator? */
- int scsi_id_mask; /* Bitmask of 'me'. */
- int diff; /* Differential SCSI bus? */
- int bursts; /* Burst sizes our DVMA supports */
-
- /* Our command queues, only one cmd lives in the current_SC queue. */
- struct scsi_cmnd *issue_SC; /* Commands to be issued */
- struct scsi_cmnd *current_SC; /* Who is currently working the bus */
- struct scsi_cmnd *disconnected_SC;/* Commands disconnected from the bus */
-
- /* Message goo */
- u8 cur_msgout[16];
- u8 cur_msgin[16];
- u8 prevmsgout, prevmsgin;
- u8 msgout_len, msgin_len;
- u8 msgout_ctr, msgin_ctr;
-
- /* States that we cannot keep in the per cmd structure because they
- * cannot be assosciated with any specific command.
- */
- u8 resetting_bus;
- wait_queue_head_t reset_queue;
-};
-
-/* Bitfield meanings for the above registers. */
-
-/* ESP config reg 1, read-write, found on all ESP chips */
-#define ESP_CONFIG1_ID 0x07 /* My BUS ID bits */
-#define ESP_CONFIG1_CHTEST 0x08 /* Enable ESP chip tests */
-#define ESP_CONFIG1_PENABLE 0x10 /* Enable parity checks */
-#define ESP_CONFIG1_PARTEST 0x20 /* Parity test mode enabled? */
-#define ESP_CONFIG1_SRRDISAB 0x40 /* Disable SCSI reset reports */
-#define ESP_CONFIG1_SLCABLE 0x80 /* Enable slow cable mode */
-
-/* ESP config reg 2, read-write, found only on esp100a+esp200+esp236 chips */
-#define ESP_CONFIG2_DMAPARITY 0x01 /* enable DMA Parity (200,236) */
-#define ESP_CONFIG2_REGPARITY 0x02 /* enable reg Parity (200,236) */
-#define ESP_CONFIG2_BADPARITY 0x04 /* Bad parity target abort */
-#define ESP_CONFIG2_SCSI2ENAB 0x08 /* Enable SCSI-2 features (tmode only) */
-#define ESP_CONFIG2_HI 0x10 /* High Impedance DREQ ??? */
-#define ESP_CONFIG2_HMEFENAB 0x10 /* HME features enable */
-#define ESP_CONFIG2_BCM 0x20 /* Enable byte-ctrl (236) */
-#define ESP_CONFIG2_DISPINT 0x20 /* Disable pause irq (hme) */
-#define ESP_CONFIG2_FENAB 0x40 /* Enable features (fas100,esp216) */
-#define ESP_CONFIG2_SPL 0x40 /* Enable status-phase latch (esp236) */
-#define ESP_CONFIG2_MKDONE 0x40 /* HME magic feature */
-#define ESP_CONFIG2_HME32 0x80 /* HME 32 extended */
-#define ESP_CONFIG2_MAGIC 0xe0 /* Invalid bits... */
-
-/* ESP config register 3 read-write, found only esp236+fas236+fas100a+hme chips */
-#define ESP_CONFIG3_FCLOCK 0x01 /* FAST SCSI clock rate (esp100a/hme) */
-#define ESP_CONFIG3_TEM 0x01 /* Enable thresh-8 mode (esp/fas236) */
-#define ESP_CONFIG3_FAST 0x02 /* Enable FAST SCSI (esp100a/hme) */
-#define ESP_CONFIG3_ADMA 0x02 /* Enable alternate-dma (esp/fas236) */
-#define ESP_CONFIG3_TENB 0x04 /* group2 SCSI2 support (esp100a/hme) */
-#define ESP_CONFIG3_SRB 0x04 /* Save residual byte (esp/fas236) */
-#define ESP_CONFIG3_TMS 0x08 /* Three-byte msg's ok (esp100a/hme) */
-#define ESP_CONFIG3_FCLK 0x08 /* Fast SCSI clock rate (esp/fas236) */
-#define ESP_CONFIG3_IDMSG 0x10 /* ID message checking (esp100a/hme) */
-#define ESP_CONFIG3_FSCSI 0x10 /* Enable FAST SCSI (esp/fas236) */
-#define ESP_CONFIG3_GTM 0x20 /* group2 SCSI2 support (esp/fas236) */
-#define ESP_CONFIG3_IDBIT3 0x20 /* Bit 3 of HME SCSI-ID (hme) */
-#define ESP_CONFIG3_TBMS 0x40 /* Three-byte msg's ok (esp/fas236) */
-#define ESP_CONFIG3_EWIDE 0x40 /* Enable Wide-SCSI (hme) */
-#define ESP_CONFIG3_IMS 0x80 /* ID msg chk'ng (esp/fas236) */
-#define ESP_CONFIG3_OBPUSH 0x80 /* Push odd-byte to dma (hme) */
-
-/* ESP command register read-write */
-/* Group 1 commands: These may be sent at any point in time to the ESP
- * chip. None of them can generate interrupts 'cept
- * the "SCSI bus reset" command if you have not disabled
- * SCSI reset interrupts in the config1 ESP register.
- */
-#define ESP_CMD_NULL 0x00 /* Null command, ie. a nop */
-#define ESP_CMD_FLUSH 0x01 /* FIFO Flush */
-#define ESP_CMD_RC 0x02 /* Chip reset */
-#define ESP_CMD_RS 0x03 /* SCSI bus reset */
-
-/* Group 2 commands: ESP must be an initiator and connected to a target
- * for these commands to work.
- */
-#define ESP_CMD_TI 0x10 /* Transfer Information */
-#define ESP_CMD_ICCSEQ 0x11 /* Initiator cmd complete sequence */
-#define ESP_CMD_MOK 0x12 /* Message okie-dokie */
-#define ESP_CMD_TPAD 0x18 /* Transfer Pad */
-#define ESP_CMD_SATN 0x1a /* Set ATN */
-#define ESP_CMD_RATN 0x1b /* De-assert ATN */
-
-/* Group 3 commands: ESP must be in the MSGOUT or MSGIN state and be connected
- * to a target as the initiator for these commands to work.
- */
-#define ESP_CMD_SMSG 0x20 /* Send message */
-#define ESP_CMD_SSTAT 0x21 /* Send status */
-#define ESP_CMD_SDATA 0x22 /* Send data */
-#define ESP_CMD_DSEQ 0x23 /* Discontinue Sequence */
-#define ESP_CMD_TSEQ 0x24 /* Terminate Sequence */
-#define ESP_CMD_TCCSEQ 0x25 /* Target cmd cmplt sequence */
-#define ESP_CMD_DCNCT 0x27 /* Disconnect */
-#define ESP_CMD_RMSG 0x28 /* Receive Message */
-#define ESP_CMD_RCMD 0x29 /* Receive Command */
-#define ESP_CMD_RDATA 0x2a /* Receive Data */
-#define ESP_CMD_RCSEQ 0x2b /* Receive cmd sequence */
-
-/* Group 4 commands: The ESP must be in the disconnected state and must
- * not be connected to any targets as initiator for
- * these commands to work.
- */
-#define ESP_CMD_RSEL 0x40 /* Reselect */
-#define ESP_CMD_SEL 0x41 /* Select w/o ATN */
-#define ESP_CMD_SELA 0x42 /* Select w/ATN */
-#define ESP_CMD_SELAS 0x43 /* Select w/ATN & STOP */
-#define ESP_CMD_ESEL 0x44 /* Enable selection */
-#define ESP_CMD_DSEL 0x45 /* Disable selections */
-#define ESP_CMD_SA3 0x46 /* Select w/ATN3 */
-#define ESP_CMD_RSEL3 0x47 /* Reselect3 */
-
-/* This bit enables the ESP's DMA on the SBus */
-#define ESP_CMD_DMA 0x80 /* Do DMA? */
-
-
-/* ESP status register read-only */
-#define ESP_STAT_PIO 0x01 /* IO phase bit */
-#define ESP_STAT_PCD 0x02 /* CD phase bit */
-#define ESP_STAT_PMSG 0x04 /* MSG phase bit */
-#define ESP_STAT_PMASK 0x07 /* Mask of phase bits */
-#define ESP_STAT_TDONE 0x08 /* Transfer Completed */
-#define ESP_STAT_TCNT 0x10 /* Transfer Counter Is Zero */
-#define ESP_STAT_PERR 0x20 /* Parity error */
-#define ESP_STAT_SPAM 0x40 /* Real bad error */
-/* This indicates the 'interrupt pending' condition on esp236, it is a reserved
- * bit on other revs of the ESP.
- */
-#define ESP_STAT_INTR 0x80 /* Interrupt */
-
-/* HME only: status 2 register */
-#define ESP_STAT2_SCHBIT 0x01 /* Upper bits 3-7 of sstep enabled */
-#define ESP_STAT2_FFLAGS 0x02 /* The fifo flags are now latched */
-#define ESP_STAT2_XCNT 0x04 /* The transfer counter is latched */
-#define ESP_STAT2_CREGA 0x08 /* The command reg is active now */
-#define ESP_STAT2_WIDE 0x10 /* Interface on this adapter is wide */
-#define ESP_STAT2_F1BYTE 0x20 /* There is one byte at top of fifo */
-#define ESP_STAT2_FMSB 0x40 /* Next byte in fifo is most significant */
-#define ESP_STAT2_FEMPTY 0x80 /* FIFO is empty */
-
-/* The status register can be masked with ESP_STAT_PMASK and compared
- * with the following values to determine the current phase the ESP
- * (at least thinks it) is in. For our purposes we also add our own
- * software 'done' bit for our phase management engine.
- */
-#define ESP_DOP (0) /* Data Out */
-#define ESP_DIP (ESP_STAT_PIO) /* Data In */
-#define ESP_CMDP (ESP_STAT_PCD) /* Command */
-#define ESP_STATP (ESP_STAT_PCD|ESP_STAT_PIO) /* Status */
-#define ESP_MOP (ESP_STAT_PMSG|ESP_STAT_PCD) /* Message Out */
-#define ESP_MIP (ESP_STAT_PMSG|ESP_STAT_PCD|ESP_STAT_PIO) /* Message In */
-
-/* ESP interrupt register read-only */
-#define ESP_INTR_S 0x01 /* Select w/o ATN */
-#define ESP_INTR_SATN 0x02 /* Select w/ATN */
-#define ESP_INTR_RSEL 0x04 /* Reselected */
-#define ESP_INTR_FDONE 0x08 /* Function done */
-#define ESP_INTR_BSERV 0x10 /* Bus service */
-#define ESP_INTR_DC 0x20 /* Disconnect */
-#define ESP_INTR_IC 0x40 /* Illegal command given */
-#define ESP_INTR_SR 0x80 /* SCSI bus reset detected */
-
-/* Interrupt status macros */
-#define ESP_SRESET_IRQ(esp) ((esp)->intreg & (ESP_INTR_SR))
-#define ESP_ILLCMD_IRQ(esp) ((esp)->intreg & (ESP_INTR_IC))
-#define ESP_SELECT_WITH_ATN_IRQ(esp) ((esp)->intreg & (ESP_INTR_SATN))
-#define ESP_SELECT_WITHOUT_ATN_IRQ(esp) ((esp)->intreg & (ESP_INTR_S))
-#define ESP_SELECTION_IRQ(esp) ((ESP_SELECT_WITH_ATN_IRQ(esp)) || \
- (ESP_SELECT_WITHOUT_ATN_IRQ(esp)))
-#define ESP_RESELECTION_IRQ(esp) ((esp)->intreg & (ESP_INTR_RSEL))
-
-/* ESP sequence step register read-only */
-#define ESP_STEP_VBITS 0x07 /* Valid bits */
-#define ESP_STEP_ASEL 0x00 /* Selection&Arbitrate cmplt */
-#define ESP_STEP_SID 0x01 /* One msg byte sent */
-#define ESP_STEP_NCMD 0x02 /* Was not in command phase */
-#define ESP_STEP_PPC 0x03 /* Early phase chg caused cmnd
- * bytes to be lost
- */
-#define ESP_STEP_FINI4 0x04 /* Command was sent ok */
-
-/* Ho hum, some ESP's set the step register to this as well... */
-#define ESP_STEP_FINI5 0x05
-#define ESP_STEP_FINI6 0x06
-#define ESP_STEP_FINI7 0x07
-
-/* ESP chip-test register read-write */
-#define ESP_TEST_TARG 0x01 /* Target test mode */
-#define ESP_TEST_INI 0x02 /* Initiator test mode */
-#define ESP_TEST_TS 0x04 /* Tristate test mode */
-
-/* ESP unique ID register read-only, found on fas236+fas100a only */
-#define ESP_UID_F100A 0x00 /* ESP FAS100A */
-#define ESP_UID_F236 0x02 /* ESP FAS236 */
-#define ESP_UID_REV 0x07 /* ESP revision */
-#define ESP_UID_FAM 0xf8 /* ESP family */
-
-/* ESP fifo flags register read-only */
-/* Note that the following implies a 16 byte FIFO on the ESP. */
-#define ESP_FF_FBYTES 0x1f /* Num bytes in FIFO */
-#define ESP_FF_ONOTZERO 0x20 /* offset ctr not zero (esp100) */
-#define ESP_FF_SSTEP 0xe0 /* Sequence step */
-
-/* ESP clock conversion factor register write-only */
-#define ESP_CCF_F0 0x00 /* 35.01MHz - 40MHz */
-#define ESP_CCF_NEVER 0x01 /* Set it to this and die */
-#define ESP_CCF_F2 0x02 /* 10MHz */
-#define ESP_CCF_F3 0x03 /* 10.01MHz - 15MHz */
-#define ESP_CCF_F4 0x04 /* 15.01MHz - 20MHz */
-#define ESP_CCF_F5 0x05 /* 20.01MHz - 25MHz */
-#define ESP_CCF_F6 0x06 /* 25.01MHz - 30MHz */
-#define ESP_CCF_F7 0x07 /* 30.01MHz - 35MHz */
-
-/* HME only... */
-#define ESP_BUSID_RESELID 0x10
-#define ESP_BUSID_CTR32BIT 0x40
-
-#define ESP_BUS_TIMEOUT 275 /* In milli-seconds */
-#define ESP_TIMEO_CONST 8192
-#define ESP_NEG_DEFP(mhz, cfact) \
- ((ESP_BUS_TIMEOUT * ((mhz) / 1000)) / (8192 * (cfact)))
-#define ESP_MHZ_TO_CYCLE(mhertz) ((1000000000) / ((mhertz) / 1000))
-#define ESP_TICK(ccf, cycle) ((7682 * (ccf) * (cycle) / 1000))
-
-#endif /* !(_SPARC_ESP_H) */
--- /dev/null
+/* esp_scsi.c: ESP SCSI driver.
+ *
+ * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/completion.h>
+#include <linux/kallsyms.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_transport_spi.h>
+
+#include "esp_scsi.h"
+
+#define DRV_MODULE_NAME "esp"
+#define PFX DRV_MODULE_NAME ": "
+#define DRV_VERSION "2.000"
+#define DRV_MODULE_RELDATE "April 19, 2007"
+
+/* SCSI bus reset settle time in seconds. */
+static int esp_bus_reset_settle = 3;
+
+static u32 esp_debug;
+#define ESP_DEBUG_INTR 0x00000001
+#define ESP_DEBUG_SCSICMD 0x00000002
+#define ESP_DEBUG_RESET 0x00000004
+#define ESP_DEBUG_MSGIN 0x00000008
+#define ESP_DEBUG_MSGOUT 0x00000010
+#define ESP_DEBUG_CMDDONE 0x00000020
+#define ESP_DEBUG_DISCONNECT 0x00000040
+#define ESP_DEBUG_DATASTART 0x00000080
+#define ESP_DEBUG_DATADONE 0x00000100
+#define ESP_DEBUG_RECONNECT 0x00000200
+#define ESP_DEBUG_AUTOSENSE 0x00000400
+
+#define esp_log_intr(f, a...) \
+do { if (esp_debug & ESP_DEBUG_INTR) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_reset(f, a...) \
+do { if (esp_debug & ESP_DEBUG_RESET) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_msgin(f, a...) \
+do { if (esp_debug & ESP_DEBUG_MSGIN) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_msgout(f, a...) \
+do { if (esp_debug & ESP_DEBUG_MSGOUT) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_cmddone(f, a...) \
+do { if (esp_debug & ESP_DEBUG_CMDDONE) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_disconnect(f, a...) \
+do { if (esp_debug & ESP_DEBUG_DISCONNECT) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_datastart(f, a...) \
+do { if (esp_debug & ESP_DEBUG_DATASTART) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_datadone(f, a...) \
+do { if (esp_debug & ESP_DEBUG_DATADONE) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_reconnect(f, a...) \
+do { if (esp_debug & ESP_DEBUG_RECONNECT) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_log_autosense(f, a...) \
+do { if (esp_debug & ESP_DEBUG_AUTOSENSE) \
+ printk(f, ## a); \
+} while (0)
+
+#define esp_read8(REG) esp->ops->esp_read8(esp, REG)
+#define esp_write8(VAL,REG) esp->ops->esp_write8(esp, VAL, REG)
+
+static void esp_log_fill_regs(struct esp *esp,
+ struct esp_event_ent *p)
+{
+ p->sreg = esp->sreg;
+ p->seqreg = esp->seqreg;
+ p->sreg2 = esp->sreg2;
+ p->ireg = esp->ireg;
+ p->select_state = esp->select_state;
+ p->event = esp->event;
+}
+
+void scsi_esp_cmd(struct esp *esp, u8 val)
+{
+ struct esp_event_ent *p;
+ int idx = esp->esp_event_cur;
+
+ p = &esp->esp_event_log[idx];
+ p->type = ESP_EVENT_TYPE_CMD;
+ p->val = val;
+ esp_log_fill_regs(esp, p);
+
+ esp->esp_event_cur = (idx + 1) & (ESP_EVENT_LOG_SZ - 1);
+
+ esp_write8(val, ESP_CMD);
+}
+EXPORT_SYMBOL(scsi_esp_cmd);
+
+static void esp_event(struct esp *esp, u8 val)
+{
+ struct esp_event_ent *p;
+ int idx = esp->esp_event_cur;
+
+ p = &esp->esp_event_log[idx];
+ p->type = ESP_EVENT_TYPE_EVENT;
+ p->val = val;
+ esp_log_fill_regs(esp, p);
+
+ esp->esp_event_cur = (idx + 1) & (ESP_EVENT_LOG_SZ - 1);
+
+ esp->event = val;
+}
+
+static void esp_dump_cmd_log(struct esp *esp)
+{
+ int idx = esp->esp_event_cur;
+ int stop = idx;
+
+ printk(KERN_INFO PFX "esp%d: Dumping command log\n",
+ esp->host->unique_id);
+ do {
+ struct esp_event_ent *p = &esp->esp_event_log[idx];
+
+ printk(KERN_INFO PFX "esp%d: ent[%d] %s ",
+ esp->host->unique_id, idx,
+ p->type == ESP_EVENT_TYPE_CMD ? "CMD" : "EVENT");
+
+ printk("val[%02x] sreg[%02x] seqreg[%02x] "
+ "sreg2[%02x] ireg[%02x] ss[%02x] event[%02x]\n",
+ p->val, p->sreg, p->seqreg,
+ p->sreg2, p->ireg, p->select_state, p->event);
+
+ idx = (idx + 1) & (ESP_EVENT_LOG_SZ - 1);
+ } while (idx != stop);
+}
+
+static void esp_flush_fifo(struct esp *esp)
+{
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ if (esp->rev == ESP236) {
+ int lim = 1000;
+
+ while (esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES) {
+ if (--lim == 0) {
+ printk(KERN_ALERT PFX "esp%d: ESP_FF_BYTES "
+ "will not clear!\n",
+ esp->host->unique_id);
+ break;
+ }
+ udelay(1);
+ }
+ }
+}
+
+static void hme_read_fifo(struct esp *esp)
+{
+ int fcnt = esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES;
+ int idx = 0;
+
+ while (fcnt--) {
+ esp->fifo[idx++] = esp_read8(ESP_FDATA);
+ esp->fifo[idx++] = esp_read8(ESP_FDATA);
+ }
+ if (esp->sreg2 & ESP_STAT2_F1BYTE) {
+ esp_write8(0, ESP_FDATA);
+ esp->fifo[idx++] = esp_read8(ESP_FDATA);
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ }
+ esp->fifo_cnt = idx;
+}
+
+static void esp_set_all_config3(struct esp *esp, u8 val)
+{
+ int i;
+
+ for (i = 0; i < ESP_MAX_TARGET; i++)
+ esp->target[i].esp_config3 = val;
+}
+
+/* Reset the ESP chip, _not_ the SCSI bus. */
+static void esp_reset_esp(struct esp *esp)
+{
+ u8 family_code, version;
+
+ /* Now reset the ESP chip */
+ scsi_esp_cmd(esp, ESP_CMD_RC);
+ scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
+ scsi_esp_cmd(esp, ESP_CMD_NULL | ESP_CMD_DMA);
+
+ /* Reload the configuration registers */
+ esp_write8(esp->cfact, ESP_CFACT);
+
+ esp->prev_stp = 0;
+ esp_write8(esp->prev_stp, ESP_STP);
+
+ esp->prev_soff = 0;
+ esp_write8(esp->prev_soff, ESP_SOFF);
+
+ esp_write8(esp->neg_defp, ESP_TIMEO);
+
+ /* This is the only point at which it is reliable to read
+ * the ID-code for a fast ESP chip variants.
+ */
+ esp->max_period = ((35 * esp->ccycle) / 1000);
+ if (esp->rev == FAST) {
+ version = esp_read8(ESP_UID);
+ family_code = (version & 0xf8) >> 3;
+ if (family_code == 0x02)
+ esp->rev = FAS236;
+ else if (family_code == 0x0a)
+ esp->rev = FASHME; /* Version is usually '5'. */
+ else
+ esp->rev = FAS100A;
+ esp->min_period = ((4 * esp->ccycle) / 1000);
+ } else {
+ esp->min_period = ((5 * esp->ccycle) / 1000);
+ }
+ esp->max_period = (esp->max_period + 3)>>2;
+ esp->min_period = (esp->min_period + 3)>>2;
+
+ esp_write8(esp->config1, ESP_CFG1);
+ switch (esp->rev) {
+ case ESP100:
+ /* nothing to do */
+ break;
+
+ case ESP100A:
+ esp_write8(esp->config2, ESP_CFG2);
+ break;
+
+ case ESP236:
+ /* Slow 236 */
+ esp_write8(esp->config2, ESP_CFG2);
+ esp->prev_cfg3 = esp->target[0].esp_config3;
+ esp_write8(esp->prev_cfg3, ESP_CFG3);
+ break;
+
+ case FASHME:
+ esp->config2 |= (ESP_CONFIG2_HME32 | ESP_CONFIG2_HMEFENAB);
+ /* fallthrough... */
+
+ case FAS236:
+ /* Fast 236 or HME */
+ esp_write8(esp->config2, ESP_CFG2);
+ if (esp->rev == FASHME) {
+ u8 cfg3 = esp->target[0].esp_config3;
+
+ cfg3 |= ESP_CONFIG3_FCLOCK | ESP_CONFIG3_OBPUSH;
+ if (esp->scsi_id >= 8)
+ cfg3 |= ESP_CONFIG3_IDBIT3;
+ esp_set_all_config3(esp, cfg3);
+ } else {
+ u32 cfg3 = esp->target[0].esp_config3;
+
+ cfg3 |= ESP_CONFIG3_FCLK;
+ esp_set_all_config3(esp, cfg3);
+ }
+ esp->prev_cfg3 = esp->target[0].esp_config3;
+ esp_write8(esp->prev_cfg3, ESP_CFG3);
+ if (esp->rev == FASHME) {
+ esp->radelay = 80;
+ } else {
+ if (esp->flags & ESP_FLAG_DIFFERENTIAL)
+ esp->radelay = 0;
+ else
+ esp->radelay = 96;
+ }
+ break;
+
+ case FAS100A:
+ /* Fast 100a */
+ esp_write8(esp->config2, ESP_CFG2);
+ esp_set_all_config3(esp,
+ (esp->target[0].esp_config3 |
+ ESP_CONFIG3_FCLOCK));
+ esp->prev_cfg3 = esp->target[0].esp_config3;
+ esp_write8(esp->prev_cfg3, ESP_CFG3);
+ esp->radelay = 32;
+ break;
+
+ default:
+ break;
+ }
+
+ /* Eat any bitrot in the chip */
+ esp_read8(ESP_INTRPT);
+ udelay(100);
+}
+
+static void esp_map_dma(struct esp *esp, struct scsi_cmnd *cmd)
+{
+ struct esp_cmd_priv *spriv = ESP_CMD_PRIV(cmd);
+ struct scatterlist *sg = cmd->request_buffer;
+ int dir = cmd->sc_data_direction;
+ int total, i;
+
+ if (dir == DMA_NONE)
+ return;
+
+ BUG_ON(cmd->use_sg == 0);
+
+ spriv->u.num_sg = esp->ops->map_sg(esp, sg,
+ cmd->use_sg, dir);
+ spriv->cur_residue = sg_dma_len(sg);
+ spriv->cur_sg = sg;
+
+ total = 0;
+ for (i = 0; i < spriv->u.num_sg; i++)
+ total += sg_dma_len(&sg[i]);
+ spriv->tot_residue = total;
+}
+
+static dma_addr_t esp_cur_dma_addr(struct esp_cmd_entry *ent,
+ struct scsi_cmnd *cmd)
+{
+ struct esp_cmd_priv *p = ESP_CMD_PRIV(cmd);
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ return ent->sense_dma +
+ (ent->sense_ptr - cmd->sense_buffer);
+ }
+
+ return sg_dma_address(p->cur_sg) +
+ (sg_dma_len(p->cur_sg) -
+ p->cur_residue);
+}
+
+static unsigned int esp_cur_dma_len(struct esp_cmd_entry *ent,
+ struct scsi_cmnd *cmd)
+{
+ struct esp_cmd_priv *p = ESP_CMD_PRIV(cmd);
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ return SCSI_SENSE_BUFFERSIZE -
+ (ent->sense_ptr - cmd->sense_buffer);
+ }
+ return p->cur_residue;
+}
+
+static void esp_advance_dma(struct esp *esp, struct esp_cmd_entry *ent,
+ struct scsi_cmnd *cmd, unsigned int len)
+{
+ struct esp_cmd_priv *p = ESP_CMD_PRIV(cmd);
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ ent->sense_ptr += len;
+ return;
+ }
+
+ p->cur_residue -= len;
+ p->tot_residue -= len;
+ if (p->cur_residue < 0 || p->tot_residue < 0) {
+ printk(KERN_ERR PFX "esp%d: Data transfer overflow.\n",
+ esp->host->unique_id);
+ printk(KERN_ERR PFX "esp%d: cur_residue[%d] tot_residue[%d] "
+ "len[%u]\n",
+ esp->host->unique_id,
+ p->cur_residue, p->tot_residue, len);
+ p->cur_residue = 0;
+ p->tot_residue = 0;
+ }
+ if (!p->cur_residue && p->tot_residue) {
+ p->cur_sg++;
+ p->cur_residue = sg_dma_len(p->cur_sg);
+ }
+}
+
+static void esp_unmap_dma(struct esp *esp, struct scsi_cmnd *cmd)
+{
+ struct esp_cmd_priv *spriv = ESP_CMD_PRIV(cmd);
+ int dir = cmd->sc_data_direction;
+
+ if (dir == DMA_NONE)
+ return;
+
+ esp->ops->unmap_sg(esp, cmd->request_buffer,
+ spriv->u.num_sg, dir);
+}
+
+static void esp_save_pointers(struct esp *esp, struct esp_cmd_entry *ent)
+{
+ struct scsi_cmnd *cmd = ent->cmd;
+ struct esp_cmd_priv *spriv = ESP_CMD_PRIV(cmd);
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ ent->saved_sense_ptr = ent->sense_ptr;
+ return;
+ }
+ ent->saved_cur_residue = spriv->cur_residue;
+ ent->saved_cur_sg = spriv->cur_sg;
+ ent->saved_tot_residue = spriv->tot_residue;
+}
+
+static void esp_restore_pointers(struct esp *esp, struct esp_cmd_entry *ent)
+{
+ struct scsi_cmnd *cmd = ent->cmd;
+ struct esp_cmd_priv *spriv = ESP_CMD_PRIV(cmd);
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ ent->sense_ptr = ent->saved_sense_ptr;
+ return;
+ }
+ spriv->cur_residue = ent->saved_cur_residue;
+ spriv->cur_sg = ent->saved_cur_sg;
+ spriv->tot_residue = ent->saved_tot_residue;
+}
+
+static void esp_check_command_len(struct esp *esp, struct scsi_cmnd *cmd)
+{
+ if (cmd->cmd_len == 6 ||
+ cmd->cmd_len == 10 ||
+ cmd->cmd_len == 12) {
+ esp->flags &= ~ESP_FLAG_DOING_SLOWCMD;
+ } else {
+ esp->flags |= ESP_FLAG_DOING_SLOWCMD;
+ }
+}
+
+static void esp_write_tgt_config3(struct esp *esp, int tgt)
+{
+ if (esp->rev > ESP100A) {
+ u8 val = esp->target[tgt].esp_config3;
+
+ if (val != esp->prev_cfg3) {
+ esp->prev_cfg3 = val;
+ esp_write8(val, ESP_CFG3);
+ }
+ }
+}
+
+static void esp_write_tgt_sync(struct esp *esp, int tgt)
+{
+ u8 off = esp->target[tgt].esp_offset;
+ u8 per = esp->target[tgt].esp_period;
+
+ if (off != esp->prev_soff) {
+ esp->prev_soff = off;
+ esp_write8(off, ESP_SOFF);
+ }
+ if (per != esp->prev_stp) {
+ esp->prev_stp = per;
+ esp_write8(per, ESP_STP);
+ }
+}
+
+static u32 esp_dma_length_limit(struct esp *esp, u32 dma_addr, u32 dma_len)
+{
+ if (esp->rev == FASHME) {
+ /* Arbitrary segment boundaries, 24-bit counts. */
+ if (dma_len > (1U << 24))
+ dma_len = (1U << 24);
+ } else {
+ u32 base, end;
+
+ /* ESP chip limits other variants by 16-bits of transfer
+ * count. Actually on FAS100A and FAS236 we could get
+ * 24-bits of transfer count by enabling ESP_CONFIG2_FENAB
+ * in the ESP_CFG2 register but that causes other unwanted
+ * changes so we don't use it currently.
+ */
+ if (dma_len > (1U << 16))
+ dma_len = (1U << 16);
+
+ /* All of the DMA variants hooked up to these chips
+ * cannot handle crossing a 24-bit address boundary.
+ */
+ base = dma_addr & ((1U << 24) - 1U);
+ end = base + dma_len;
+ if (end > (1U << 24))
+ end = (1U <<24);
+ dma_len = end - base;
+ }
+ return dma_len;
+}
+
+static int esp_need_to_nego_wide(struct esp_target_data *tp)
+{
+ struct scsi_target *target = tp->starget;
+
+ return spi_width(target) != tp->nego_goal_width;
+}
+
+static int esp_need_to_nego_sync(struct esp_target_data *tp)
+{
+ struct scsi_target *target = tp->starget;
+
+ /* When offset is zero, period is "don't care". */
+ if (!spi_offset(target) && !tp->nego_goal_offset)
+ return 0;
+
+ if (spi_offset(target) == tp->nego_goal_offset &&
+ spi_period(target) == tp->nego_goal_period)
+ return 0;
+
+ return 1;
+}
+
+static int esp_alloc_lun_tag(struct esp_cmd_entry *ent,
+ struct esp_lun_data *lp)
+{
+ if (!ent->tag[0]) {
+ /* Non-tagged, slot already taken? */
+ if (lp->non_tagged_cmd)
+ return -EBUSY;
+
+ if (lp->hold) {
+ /* We are being held by active tagged
+ * commands.
+ */
+ if (lp->num_tagged)
+ return -EBUSY;
+
+ /* Tagged commands completed, we can unplug
+ * the queue and run this untagged command.
+ */
+ lp->hold = 0;
+ } else if (lp->num_tagged) {
+ /* Plug the queue until num_tagged decreases
+ * to zero in esp_free_lun_tag.
+ */
+ lp->hold = 1;
+ return -EBUSY;
+ }
+
+ lp->non_tagged_cmd = ent;
+ return 0;
+ } else {
+ /* Tagged command, see if blocked by a
+ * non-tagged one.
+ */
+ if (lp->non_tagged_cmd || lp->hold)
+ return -EBUSY;
+ }
+
+ BUG_ON(lp->tagged_cmds[ent->tag[1]]);
+
+ lp->tagged_cmds[ent->tag[1]] = ent;
+ lp->num_tagged++;
+
+ return 0;
+}
+
+static void esp_free_lun_tag(struct esp_cmd_entry *ent,
+ struct esp_lun_data *lp)
+{
+ if (ent->tag[0]) {
+ BUG_ON(lp->tagged_cmds[ent->tag[1]] != ent);
+ lp->tagged_cmds[ent->tag[1]] = NULL;
+ lp->num_tagged--;
+ } else {
+ BUG_ON(lp->non_tagged_cmd != ent);
+ lp->non_tagged_cmd = NULL;
+ }
+}
+
+/* When a contingent allegiance conditon is created, we force feed a
+ * REQUEST_SENSE command to the device to fetch the sense data. I
+ * tried many other schemes, relying on the scsi error handling layer
+ * to send out the REQUEST_SENSE automatically, but this was difficult
+ * to get right especially in the presence of applications like smartd
+ * which use SG_IO to send out their own REQUEST_SENSE commands.
+ */
+static void esp_autosense(struct esp *esp, struct esp_cmd_entry *ent)
+{
+ struct scsi_cmnd *cmd = ent->cmd;
+ struct scsi_device *dev = cmd->device;
+ int tgt, lun;
+ u8 *p, val;
+
+ tgt = dev->id;
+ lun = dev->lun;
+
+
+ if (!ent->sense_ptr) {
+ esp_log_autosense("esp%d: Doing auto-sense for "
+ "tgt[%d] lun[%d]\n",
+ esp->host->unique_id, tgt, lun);
+
+ ent->sense_ptr = cmd->sense_buffer;
+ ent->sense_dma = esp->ops->map_single(esp,
+ ent->sense_ptr,
+ SCSI_SENSE_BUFFERSIZE,
+ DMA_FROM_DEVICE);
+ }
+ ent->saved_sense_ptr = ent->sense_ptr;
+
+ esp->active_cmd = ent;
+
+ p = esp->command_block;
+ esp->msg_out_len = 0;
+
+ *p++ = IDENTIFY(0, lun);
+ *p++ = REQUEST_SENSE;
+ *p++ = ((dev->scsi_level <= SCSI_2) ?
+ (lun << 5) : 0);
+ *p++ = 0;
+ *p++ = 0;
+ *p++ = SCSI_SENSE_BUFFERSIZE;
+ *p++ = 0;
+
+ esp->select_state = ESP_SELECT_BASIC;
+
+ val = tgt;
+ if (esp->rev == FASHME)
+ val |= ESP_BUSID_RESELID | ESP_BUSID_CTR32BIT;
+ esp_write8(val, ESP_BUSID);
+
+ esp_write_tgt_sync(esp, tgt);
+ esp_write_tgt_config3(esp, tgt);
+
+ val = (p - esp->command_block);
+
+ if (esp->rev == FASHME)
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ esp->ops->send_dma_cmd(esp, esp->command_block_dma,
+ val, 16, 0, ESP_CMD_DMA | ESP_CMD_SELA);
+}
+
+static struct esp_cmd_entry *find_and_prep_issuable_command(struct esp *esp)
+{
+ struct esp_cmd_entry *ent;
+
+ list_for_each_entry(ent, &esp->queued_cmds, list) {
+ struct scsi_cmnd *cmd = ent->cmd;
+ struct scsi_device *dev = cmd->device;
+ struct esp_lun_data *lp = dev->hostdata;
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ ent->tag[0] = 0;
+ ent->tag[1] = 0;
+ return ent;
+ }
+
+ if (!scsi_populate_tag_msg(cmd, &ent->tag[0])) {
+ ent->tag[0] = 0;
+ ent->tag[1] = 0;
+ }
+
+ if (esp_alloc_lun_tag(ent, lp) < 0)
+ continue;
+
+ return ent;
+ }
+
+ return NULL;
+}
+
+static void esp_maybe_execute_command(struct esp *esp)
+{
+ struct esp_target_data *tp;
+ struct esp_lun_data *lp;
+ struct scsi_device *dev;
+ struct scsi_cmnd *cmd;
+ struct esp_cmd_entry *ent;
+ int tgt, lun, i;
+ u32 val, start_cmd;
+ u8 *p;
+
+ if (esp->active_cmd ||
+ (esp->flags & ESP_FLAG_RESETTING))
+ return;
+
+ ent = find_and_prep_issuable_command(esp);
+ if (!ent)
+ return;
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ esp_autosense(esp, ent);
+ return;
+ }
+
+ cmd = ent->cmd;
+ dev = cmd->device;
+ tgt = dev->id;
+ lun = dev->lun;
+ tp = &esp->target[tgt];
+ lp = dev->hostdata;
+
+ list_del(&ent->list);
+ list_add(&ent->list, &esp->active_cmds);
+
+ esp->active_cmd = ent;
+
+ esp_map_dma(esp, cmd);
+ esp_save_pointers(esp, ent);
+
+ esp_check_command_len(esp, cmd);
+
+ p = esp->command_block;
+
+ esp->msg_out_len = 0;
+ if (tp->flags & ESP_TGT_CHECK_NEGO) {
+ /* Need to negotiate. If the target is broken
+ * go for synchronous transfers and non-wide.
+ */
+ if (tp->flags & ESP_TGT_BROKEN) {
+ tp->flags &= ~ESP_TGT_DISCONNECT;
+ tp->nego_goal_period = 0;
+ tp->nego_goal_offset = 0;
+ tp->nego_goal_width = 0;
+ tp->nego_goal_tags = 0;
+ }
+
+ /* If the settings are not changing, skip this. */
+ if (spi_width(tp->starget) == tp->nego_goal_width &&
+ spi_period(tp->starget) == tp->nego_goal_period &&
+ spi_offset(tp->starget) == tp->nego_goal_offset) {
+ tp->flags &= ~ESP_TGT_CHECK_NEGO;
+ goto build_identify;
+ }
+
+ if (esp->rev == FASHME && esp_need_to_nego_wide(tp)) {
+ esp->msg_out_len =
+ spi_populate_width_msg(&esp->msg_out[0],
+ (tp->nego_goal_width ?
+ 1 : 0));
+ tp->flags |= ESP_TGT_NEGO_WIDE;
+ } else if (esp_need_to_nego_sync(tp)) {
+ esp->msg_out_len =
+ spi_populate_sync_msg(&esp->msg_out[0],
+ tp->nego_goal_period,
+ tp->nego_goal_offset);
+ tp->flags |= ESP_TGT_NEGO_SYNC;
+ } else {
+ tp->flags &= ~ESP_TGT_CHECK_NEGO;
+ }
+
+ /* Process it like a slow command. */
+ if (tp->flags & (ESP_TGT_NEGO_WIDE | ESP_TGT_NEGO_SYNC))
+ esp->flags |= ESP_FLAG_DOING_SLOWCMD;
+ }
+
+build_identify:
+ /* If we don't have a lun-data struct yet, we're probing
+ * so do not disconnect. Also, do not disconnect unless
+ * we have a tag on this command.
+ */
+ if (lp && (tp->flags & ESP_TGT_DISCONNECT) && ent->tag[0])
+ *p++ = IDENTIFY(1, lun);
+ else
+ *p++ = IDENTIFY(0, lun);
+
+ if (ent->tag[0] && esp->rev == ESP100) {
+ /* ESP100 lacks select w/atn3 command, use select
+ * and stop instead.
+ */
+ esp->flags |= ESP_FLAG_DOING_SLOWCMD;
+ }
+
+ if (!(esp->flags & ESP_FLAG_DOING_SLOWCMD)) {
+ start_cmd = ESP_CMD_DMA | ESP_CMD_SELA;
+ if (ent->tag[0]) {
+ *p++ = ent->tag[0];
+ *p++ = ent->tag[1];
+
+ start_cmd = ESP_CMD_DMA | ESP_CMD_SA3;
+ }
+
+ for (i = 0; i < cmd->cmd_len; i++)
+ *p++ = cmd->cmnd[i];
+
+ esp->select_state = ESP_SELECT_BASIC;
+ } else {
+ esp->cmd_bytes_left = cmd->cmd_len;
+ esp->cmd_bytes_ptr = &cmd->cmnd[0];
+
+ if (ent->tag[0]) {
+ for (i = esp->msg_out_len - 1;
+ i >= 0; i--)
+ esp->msg_out[i + 2] = esp->msg_out[i];
+ esp->msg_out[0] = ent->tag[0];
+ esp->msg_out[1] = ent->tag[1];
+ esp->msg_out_len += 2;
+ }
+
+ start_cmd = ESP_CMD_DMA | ESP_CMD_SELAS;
+ esp->select_state = ESP_SELECT_MSGOUT;
+ }
+ val = tgt;
+ if (esp->rev == FASHME)
+ val |= ESP_BUSID_RESELID | ESP_BUSID_CTR32BIT;
+ esp_write8(val, ESP_BUSID);
+
+ esp_write_tgt_sync(esp, tgt);
+ esp_write_tgt_config3(esp, tgt);
+
+ val = (p - esp->command_block);
+
+ if (esp_debug & ESP_DEBUG_SCSICMD) {
+ printk("ESP: tgt[%d] lun[%d] scsi_cmd [ ", tgt, lun);
+ for (i = 0; i < cmd->cmd_len; i++)
+ printk("%02x ", cmd->cmnd[i]);
+ printk("]\n");
+ }
+
+ if (esp->rev == FASHME)
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ esp->ops->send_dma_cmd(esp, esp->command_block_dma,
+ val, 16, 0, start_cmd);
+}
+
+static struct esp_cmd_entry *esp_get_ent(struct esp *esp)
+{
+ struct list_head *head = &esp->esp_cmd_pool;
+ struct esp_cmd_entry *ret;
+
+ if (list_empty(head)) {
+ ret = kzalloc(sizeof(struct esp_cmd_entry), GFP_ATOMIC);
+ } else {
+ ret = list_entry(head->next, struct esp_cmd_entry, list);
+ list_del(&ret->list);
+ memset(ret, 0, sizeof(*ret));
+ }
+ return ret;
+}
+
+static void esp_put_ent(struct esp *esp, struct esp_cmd_entry *ent)
+{
+ list_add(&ent->list, &esp->esp_cmd_pool);
+}
+
+static void esp_cmd_is_done(struct esp *esp, struct esp_cmd_entry *ent,
+ struct scsi_cmnd *cmd, unsigned int result)
+{
+ struct scsi_device *dev = cmd->device;
+ int tgt = dev->id;
+ int lun = dev->lun;
+
+ esp->active_cmd = NULL;
+ esp_unmap_dma(esp, cmd);
+ esp_free_lun_tag(ent, dev->hostdata);
+ cmd->result = result;
+
+ if (ent->eh_done) {
+ complete(ent->eh_done);
+ ent->eh_done = NULL;
+ }
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ esp->ops->unmap_single(esp, ent->sense_dma,
+ SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
+ ent->sense_ptr = NULL;
+
+ /* Restore the message/status bytes to what we actually
+ * saw originally. Also, report that we are providing
+ * the sense data.
+ */
+ cmd->result = ((DRIVER_SENSE << 24) |
+ (DID_OK << 16) |
+ (COMMAND_COMPLETE << 8) |
+ (SAM_STAT_CHECK_CONDITION << 0));
+
+ ent->flags &= ~ESP_CMD_FLAG_AUTOSENSE;
+ if (esp_debug & ESP_DEBUG_AUTOSENSE) {
+ int i;
+
+ printk("esp%d: tgt[%d] lun[%d] AUTO SENSE[ ",
+ esp->host->unique_id, tgt, lun);
+ for (i = 0; i < 18; i++)
+ printk("%02x ", cmd->sense_buffer[i]);
+ printk("]\n");
+ }
+ }
+
+ cmd->scsi_done(cmd);
+
+ list_del(&ent->list);
+ esp_put_ent(esp, ent);
+
+ esp_maybe_execute_command(esp);
+}
+
+static unsigned int compose_result(unsigned int status, unsigned int message,
+ unsigned int driver_code)
+{
+ return (status | (message << 8) | (driver_code << 16));
+}
+
+static void esp_event_queue_full(struct esp *esp, struct esp_cmd_entry *ent)
+{
+ struct scsi_device *dev = ent->cmd->device;
+ struct esp_lun_data *lp = dev->hostdata;
+
+ scsi_track_queue_full(dev, lp->num_tagged - 1);
+}
+
+static int esp_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+{
+ struct scsi_device *dev = cmd->device;
+ struct esp *esp = host_to_esp(dev->host);
+ struct esp_cmd_priv *spriv;
+ struct esp_cmd_entry *ent;
+
+ ent = esp_get_ent(esp);
+ if (!ent)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ ent->cmd = cmd;
+
+ cmd->scsi_done = done;
+
+ spriv = ESP_CMD_PRIV(cmd);
+ spriv->u.dma_addr = ~(dma_addr_t)0x0;
+
+ list_add_tail(&ent->list, &esp->queued_cmds);
+
+ esp_maybe_execute_command(esp);
+
+ return 0;
+}
+
+static int esp_check_gross_error(struct esp *esp)
+{
+ if (esp->sreg & ESP_STAT_SPAM) {
+ /* Gross Error, could be one of:
+ * - top of fifo overwritten
+ * - top of command register overwritten
+ * - DMA programmed with wrong direction
+ * - improper phase change
+ */
+ printk(KERN_ERR PFX "esp%d: Gross error sreg[%02x]\n",
+ esp->host->unique_id, esp->sreg);
+ /* XXX Reset the chip. XXX */
+ return 1;
+ }
+ return 0;
+}
+
+static int esp_check_spur_intr(struct esp *esp)
+{
+ switch (esp->rev) {
+ case ESP100:
+ case ESP100A:
+ /* The interrupt pending bit of the status register cannot
+ * be trusted on these revisions.
+ */
+ esp->sreg &= ~ESP_STAT_INTR;
+ break;
+
+ default:
+ if (!(esp->sreg & ESP_STAT_INTR)) {
+ esp->ireg = esp_read8(ESP_INTRPT);
+ if (esp->ireg & ESP_INTR_SR)
+ return 1;
+
+ /* If the DMA is indicating interrupt pending and the
+ * ESP is not, the only possibility is a DMA error.
+ */
+ if (!esp->ops->dma_error(esp)) {
+ printk(KERN_ERR PFX "esp%d: Spurious irq, "
+ "sreg=%x.\n",
+ esp->host->unique_id, esp->sreg);
+ return -1;
+ }
+
+ printk(KERN_ERR PFX "esp%d: DMA error\n",
+ esp->host->unique_id);
+
+ /* XXX Reset the chip. XXX */
+ return -1;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static void esp_schedule_reset(struct esp *esp)
+{
+ esp_log_reset("ESP: esp_schedule_reset() from %p\n",
+ __builtin_return_address(0));
+ esp->flags |= ESP_FLAG_RESETTING;
+ esp_event(esp, ESP_EVENT_RESET);
+}
+
+/* In order to avoid having to add a special half-reconnected state
+ * into the driver we just sit here and poll through the rest of
+ * the reselection process to get the tag message bytes.
+ */
+static struct esp_cmd_entry *esp_reconnect_with_tag(struct esp *esp,
+ struct esp_lun_data *lp)
+{
+ struct esp_cmd_entry *ent;
+ int i;
+
+ if (!lp->num_tagged) {
+ printk(KERN_ERR PFX "esp%d: Reconnect w/num_tagged==0\n",
+ esp->host->unique_id);
+ return NULL;
+ }
+
+ esp_log_reconnect("ESP: reconnect tag, ");
+
+ for (i = 0; i < ESP_QUICKIRQ_LIMIT; i++) {
+ if (esp->ops->irq_pending(esp))
+ break;
+ }
+ if (i == ESP_QUICKIRQ_LIMIT) {
+ printk(KERN_ERR PFX "esp%d: Reconnect IRQ1 timeout\n",
+ esp->host->unique_id);
+ return NULL;
+ }
+
+ esp->sreg = esp_read8(ESP_STATUS);
+ esp->ireg = esp_read8(ESP_INTRPT);
+
+ esp_log_reconnect("IRQ(%d:%x:%x), ",
+ i, esp->ireg, esp->sreg);
+
+ if (esp->ireg & ESP_INTR_DC) {
+ printk(KERN_ERR PFX "esp%d: Reconnect, got disconnect.\n",
+ esp->host->unique_id);
+ return NULL;
+ }
+
+ if ((esp->sreg & ESP_STAT_PMASK) != ESP_MIP) {
+ printk(KERN_ERR PFX "esp%d: Reconnect, not MIP sreg[%02x].\n",
+ esp->host->unique_id, esp->sreg);
+ return NULL;
+ }
+
+ /* DMA in the tag bytes... */
+ esp->command_block[0] = 0xff;
+ esp->command_block[1] = 0xff;
+ esp->ops->send_dma_cmd(esp, esp->command_block_dma,
+ 2, 2, 1, ESP_CMD_DMA | ESP_CMD_TI);
+
+ /* ACK the msssage. */
+ scsi_esp_cmd(esp, ESP_CMD_MOK);
+
+ for (i = 0; i < ESP_RESELECT_TAG_LIMIT; i++) {
+ if (esp->ops->irq_pending(esp)) {
+ esp->sreg = esp_read8(ESP_STATUS);
+ esp->ireg = esp_read8(ESP_INTRPT);
+ if (esp->ireg & ESP_INTR_FDONE)
+ break;
+ }
+ udelay(1);
+ }
+ if (i == ESP_RESELECT_TAG_LIMIT) {
+ printk(KERN_ERR PFX "esp%d: Reconnect IRQ2 timeout\n",
+ esp->host->unique_id);
+ return NULL;
+ }
+ esp->ops->dma_drain(esp);
+ esp->ops->dma_invalidate(esp);
+
+ esp_log_reconnect("IRQ2(%d:%x:%x) tag[%x:%x]\n",
+ i, esp->ireg, esp->sreg,
+ esp->command_block[0],
+ esp->command_block[1]);
+
+ if (esp->command_block[0] < SIMPLE_QUEUE_TAG ||
+ esp->command_block[0] > ORDERED_QUEUE_TAG) {
+ printk(KERN_ERR PFX "esp%d: Reconnect, bad tag "
+ "type %02x.\n",
+ esp->host->unique_id, esp->command_block[0]);
+ return NULL;
+ }
+
+ ent = lp->tagged_cmds[esp->command_block[1]];
+ if (!ent) {
+ printk(KERN_ERR PFX "esp%d: Reconnect, no entry for "
+ "tag %02x.\n",
+ esp->host->unique_id, esp->command_block[1]);
+ return NULL;
+ }
+
+ return ent;
+}
+
+static int esp_reconnect(struct esp *esp)
+{
+ struct esp_cmd_entry *ent;
+ struct esp_target_data *tp;
+ struct esp_lun_data *lp;
+ struct scsi_device *dev;
+ int target, lun;
+
+ BUG_ON(esp->active_cmd);
+ if (esp->rev == FASHME) {
+ /* FASHME puts the target and lun numbers directly
+ * into the fifo.
+ */
+ target = esp->fifo[0];
+ lun = esp->fifo[1] & 0x7;
+ } else {
+ u8 bits = esp_read8(ESP_FDATA);
+
+ /* Older chips put the lun directly into the fifo, but
+ * the target is given as a sample of the arbitration
+ * lines on the bus at reselection time. So we should
+ * see the ID of the ESP and the one reconnecting target
+ * set in the bitmap.
+ */
+ if (!(bits & esp->scsi_id_mask))
+ goto do_reset;
+ bits &= ~esp->scsi_id_mask;
+ if (!bits || (bits & (bits - 1)))
+ goto do_reset;
+
+ target = ffs(bits) - 1;
+ lun = (esp_read8(ESP_FDATA) & 0x7);
+
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ if (esp->rev == ESP100) {
+ u8 ireg = esp_read8(ESP_INTRPT);
+ /* This chip has a bug during reselection that can
+ * cause a spurious illegal-command interrupt, which
+ * we simply ACK here. Another possibility is a bus
+ * reset so we must check for that.
+ */
+ if (ireg & ESP_INTR_SR)
+ goto do_reset;
+ }
+ scsi_esp_cmd(esp, ESP_CMD_NULL);
+ }
+
+ esp_write_tgt_sync(esp, target);
+ esp_write_tgt_config3(esp, target);
+
+ scsi_esp_cmd(esp, ESP_CMD_MOK);
+
+ if (esp->rev == FASHME)
+ esp_write8(target | ESP_BUSID_RESELID | ESP_BUSID_CTR32BIT,
+ ESP_BUSID);
+
+ tp = &esp->target[target];
+ dev = __scsi_device_lookup_by_target(tp->starget, lun);
+ if (!dev) {
+ printk(KERN_ERR PFX "esp%d: Reconnect, no lp "
+ "tgt[%u] lun[%u]\n",
+ esp->host->unique_id, target, lun);
+ goto do_reset;
+ }
+ lp = dev->hostdata;
+
+ ent = lp->non_tagged_cmd;
+ if (!ent) {
+ ent = esp_reconnect_with_tag(esp, lp);
+ if (!ent)
+ goto do_reset;
+ }
+
+ esp->active_cmd = ent;
+
+ if (ent->flags & ESP_CMD_FLAG_ABORT) {
+ esp->msg_out[0] = ABORT_TASK_SET;
+ esp->msg_out_len = 1;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+ }
+
+ esp_event(esp, ESP_EVENT_CHECK_PHASE);
+ esp_restore_pointers(esp, ent);
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ return 1;
+
+do_reset:
+ esp_schedule_reset(esp);
+ return 0;
+}
+
+static int esp_finish_select(struct esp *esp)
+{
+ struct esp_cmd_entry *ent;
+ struct scsi_cmnd *cmd;
+ u8 orig_select_state;
+
+ orig_select_state = esp->select_state;
+
+ /* No longer selecting. */
+ esp->select_state = ESP_SELECT_NONE;
+
+ esp->seqreg = esp_read8(ESP_SSTEP) & ESP_STEP_VBITS;
+ ent = esp->active_cmd;
+ cmd = ent->cmd;
+
+ if (esp->ops->dma_error(esp)) {
+ /* If we see a DMA error during or as a result of selection,
+ * all bets are off.
+ */
+ esp_schedule_reset(esp);
+ esp_cmd_is_done(esp, ent, cmd, (DID_ERROR << 16));
+ return 0;
+ }
+
+ esp->ops->dma_invalidate(esp);
+
+ if (esp->ireg == (ESP_INTR_RSEL | ESP_INTR_FDONE)) {
+ struct esp_target_data *tp = &esp->target[cmd->device->id];
+
+ /* Carefully back out of the selection attempt. Release
+ * resources (such as DMA mapping & TAG) and reset state (such
+ * as message out and command delivery variables).
+ */
+ if (!(ent->flags & ESP_CMD_FLAG_AUTOSENSE)) {
+ esp_unmap_dma(esp, cmd);
+ esp_free_lun_tag(ent, cmd->device->hostdata);
+ tp->flags &= ~(ESP_TGT_NEGO_SYNC | ESP_TGT_NEGO_WIDE);
+ esp->flags &= ~ESP_FLAG_DOING_SLOWCMD;
+ esp->cmd_bytes_ptr = NULL;
+ esp->cmd_bytes_left = 0;
+ } else {
+ esp->ops->unmap_single(esp, ent->sense_dma,
+ SCSI_SENSE_BUFFERSIZE,
+ DMA_FROM_DEVICE);
+ ent->sense_ptr = NULL;
+ }
+
+ /* Now that the state is unwound properly, put back onto
+ * the issue queue. This command is no longer active.
+ */
+ list_del(&ent->list);
+ list_add(&ent->list, &esp->queued_cmds);
+ esp->active_cmd = NULL;
+
+ /* Return value ignored by caller, it directly invokes
+ * esp_reconnect().
+ */
+ return 0;
+ }
+
+ if (esp->ireg == ESP_INTR_DC) {
+ struct scsi_device *dev = cmd->device;
+
+ /* Disconnect. Make sure we re-negotiate sync and
+ * wide parameters if this target starts responding
+ * again in the future.
+ */
+ esp->target[dev->id].flags |= ESP_TGT_CHECK_NEGO;
+
+ scsi_esp_cmd(esp, ESP_CMD_ESEL);
+ esp_cmd_is_done(esp, ent, cmd, (DID_BAD_TARGET << 16));
+ return 1;
+ }
+
+ if (esp->ireg == (ESP_INTR_FDONE | ESP_INTR_BSERV)) {
+ /* Selection successful. On pre-FAST chips we have
+ * to do a NOP and possibly clean out the FIFO.
+ */
+ if (esp->rev <= ESP236) {
+ int fcnt = esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES;
+
+ scsi_esp_cmd(esp, ESP_CMD_NULL);
+
+ if (!fcnt &&
+ (!esp->prev_soff ||
+ ((esp->sreg & ESP_STAT_PMASK) != ESP_DIP)))
+ esp_flush_fifo(esp);
+ }
+
+ /* If we are doing a slow command, negotiation, etc.
+ * we'll do the right thing as we transition to the
+ * next phase.
+ */
+ esp_event(esp, ESP_EVENT_CHECK_PHASE);
+ return 0;
+ }
+
+ printk("ESP: Unexpected selection completion ireg[%x].\n",
+ esp->ireg);
+ esp_schedule_reset(esp);
+ return 0;
+}
+
+static int esp_data_bytes_sent(struct esp *esp, struct esp_cmd_entry *ent,
+ struct scsi_cmnd *cmd)
+{
+ int fifo_cnt, ecount, bytes_sent, flush_fifo;
+
+ fifo_cnt = esp_read8(ESP_FFLAGS) & ESP_FF_FBYTES;
+ if (esp->prev_cfg3 & ESP_CONFIG3_EWIDE)
+ fifo_cnt <<= 1;
+
+ ecount = 0;
+ if (!(esp->sreg & ESP_STAT_TCNT)) {
+ ecount = ((unsigned int)esp_read8(ESP_TCLOW) |
+ (((unsigned int)esp_read8(ESP_TCMED)) << 8));
+ if (esp->rev == FASHME)
+ ecount |= ((unsigned int)esp_read8(FAS_RLO)) << 16;
+ }
+
+ bytes_sent = esp->data_dma_len;
+ bytes_sent -= ecount;
+
+ if (!(ent->flags & ESP_CMD_FLAG_WRITE))
+ bytes_sent -= fifo_cnt;
+
+ flush_fifo = 0;
+ if (!esp->prev_soff) {
+ /* Synchronous data transfer, always flush fifo. */
+ flush_fifo = 1;
+ } else {
+ if (esp->rev == ESP100) {
+ u32 fflags, phase;
+
+ /* ESP100 has a chip bug where in the synchronous data
+ * phase it can mistake a final long REQ pulse from the
+ * target as an extra data byte. Fun.
+ *
+ * To detect this case we resample the status register
+ * and fifo flags. If we're still in a data phase and
+ * we see spurious chunks in the fifo, we return error
+ * to the caller which should reset and set things up
+ * such that we only try future transfers to this
+ * target in synchronous mode.
+ */
+ esp->sreg = esp_read8(ESP_STATUS);
+ phase = esp->sreg & ESP_STAT_PMASK;
+ fflags = esp_read8(ESP_FFLAGS);
+
+ if ((phase == ESP_DOP &&
+ (fflags & ESP_FF_ONOTZERO)) ||
+ (phase == ESP_DIP &&
+ (fflags & ESP_FF_FBYTES)))
+ return -1;
+ }
+ if (!(ent->flags & ESP_CMD_FLAG_WRITE))
+ flush_fifo = 1;
+ }
+
+ if (flush_fifo)
+ esp_flush_fifo(esp);
+
+ return bytes_sent;
+}
+
+static void esp_setsync(struct esp *esp, struct esp_target_data *tp,
+ u8 scsi_period, u8 scsi_offset,
+ u8 esp_stp, u8 esp_soff)
+{
+ spi_period(tp->starget) = scsi_period;
+ spi_offset(tp->starget) = scsi_offset;
+ spi_width(tp->starget) = (tp->flags & ESP_TGT_WIDE) ? 1 : 0;
+
+ if (esp_soff) {
+ esp_stp &= 0x1f;
+ esp_soff |= esp->radelay;
+ if (esp->rev >= FAS236) {
+ u8 bit = ESP_CONFIG3_FSCSI;
+ if (esp->rev >= FAS100A)
+ bit = ESP_CONFIG3_FAST;
+
+ if (scsi_period < 50) {
+ if (esp->rev == FASHME)
+ esp_soff &= ~esp->radelay;
+ tp->esp_config3 |= bit;
+ } else {
+ tp->esp_config3 &= ~bit;
+ }
+ esp->prev_cfg3 = tp->esp_config3;
+ esp_write8(esp->prev_cfg3, ESP_CFG3);
+ }
+ }
+
+ tp->esp_period = esp->prev_stp = esp_stp;
+ tp->esp_offset = esp->prev_soff = esp_soff;
+
+ esp_write8(esp_soff, ESP_SOFF);
+ esp_write8(esp_stp, ESP_STP);
+
+ tp->flags &= ~(ESP_TGT_NEGO_SYNC | ESP_TGT_CHECK_NEGO);
+
+ spi_display_xfer_agreement(tp->starget);
+}
+
+static void esp_msgin_reject(struct esp *esp)
+{
+ struct esp_cmd_entry *ent = esp->active_cmd;
+ struct scsi_cmnd *cmd = ent->cmd;
+ struct esp_target_data *tp;
+ int tgt;
+
+ tgt = cmd->device->id;
+ tp = &esp->target[tgt];
+
+ if (tp->flags & ESP_TGT_NEGO_WIDE) {
+ tp->flags &= ~(ESP_TGT_NEGO_WIDE | ESP_TGT_WIDE);
+
+ if (!esp_need_to_nego_sync(tp)) {
+ tp->flags &= ~ESP_TGT_CHECK_NEGO;
+ scsi_esp_cmd(esp, ESP_CMD_RATN);
+ } else {
+ esp->msg_out_len =
+ spi_populate_sync_msg(&esp->msg_out[0],
+ tp->nego_goal_period,
+ tp->nego_goal_offset);
+ tp->flags |= ESP_TGT_NEGO_SYNC;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+ }
+ return;
+ }
+
+ if (tp->flags & ESP_TGT_NEGO_SYNC) {
+ tp->flags &= ~(ESP_TGT_NEGO_SYNC | ESP_TGT_CHECK_NEGO);
+ tp->esp_period = 0;
+ tp->esp_offset = 0;
+ esp_setsync(esp, tp, 0, 0, 0, 0);
+ scsi_esp_cmd(esp, ESP_CMD_RATN);
+ return;
+ }
+
+ esp->msg_out[0] = ABORT_TASK_SET;
+ esp->msg_out_len = 1;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+}
+
+static void esp_msgin_sdtr(struct esp *esp, struct esp_target_data *tp)
+{
+ u8 period = esp->msg_in[3];
+ u8 offset = esp->msg_in[4];
+ u8 stp;
+
+ if (!(tp->flags & ESP_TGT_NEGO_SYNC))
+ goto do_reject;
+
+ if (offset > 15)
+ goto do_reject;
+
+ if (offset) {
+ int rounded_up, one_clock;
+
+ if (period > esp->max_period) {
+ period = offset = 0;
+ goto do_sdtr;
+ }
+ if (period < esp->min_period)
+ goto do_reject;
+
+ one_clock = esp->ccycle / 1000;
+ rounded_up = (period << 2);
+ rounded_up = (rounded_up + one_clock - 1) / one_clock;
+ stp = rounded_up;
+ if (stp && esp->rev >= FAS236) {
+ if (stp >= 50)
+ stp--;
+ }
+ } else {
+ stp = 0;
+ }
+
+ esp_setsync(esp, tp, period, offset, stp, offset);
+ return;
+
+do_reject:
+ esp->msg_out[0] = MESSAGE_REJECT;
+ esp->msg_out_len = 1;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+ return;
+
+do_sdtr:
+ tp->nego_goal_period = period;
+ tp->nego_goal_offset = offset;
+ esp->msg_out_len =
+ spi_populate_sync_msg(&esp->msg_out[0],
+ tp->nego_goal_period,
+ tp->nego_goal_offset);
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+}
+
+static void esp_msgin_wdtr(struct esp *esp, struct esp_target_data *tp)
+{
+ int size = 8 << esp->msg_in[3];
+ u8 cfg3;
+
+ if (esp->rev != FASHME)
+ goto do_reject;
+
+ if (size != 8 && size != 16)
+ goto do_reject;
+
+ if (!(tp->flags & ESP_TGT_NEGO_WIDE))
+ goto do_reject;
+
+ cfg3 = tp->esp_config3;
+ if (size == 16) {
+ tp->flags |= ESP_TGT_WIDE;
+ cfg3 |= ESP_CONFIG3_EWIDE;
+ } else {
+ tp->flags &= ~ESP_TGT_WIDE;
+ cfg3 &= ~ESP_CONFIG3_EWIDE;
+ }
+ tp->esp_config3 = cfg3;
+ esp->prev_cfg3 = cfg3;
+ esp_write8(cfg3, ESP_CFG3);
+
+ tp->flags &= ~ESP_TGT_NEGO_WIDE;
+
+ spi_period(tp->starget) = 0;
+ spi_offset(tp->starget) = 0;
+ if (!esp_need_to_nego_sync(tp)) {
+ tp->flags &= ~ESP_TGT_CHECK_NEGO;
+ scsi_esp_cmd(esp, ESP_CMD_RATN);
+ } else {
+ esp->msg_out_len =
+ spi_populate_sync_msg(&esp->msg_out[0],
+ tp->nego_goal_period,
+ tp->nego_goal_offset);
+ tp->flags |= ESP_TGT_NEGO_SYNC;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+ }
+ return;
+
+do_reject:
+ esp->msg_out[0] = MESSAGE_REJECT;
+ esp->msg_out_len = 1;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+}
+
+static void esp_msgin_extended(struct esp *esp)
+{
+ struct esp_cmd_entry *ent = esp->active_cmd;
+ struct scsi_cmnd *cmd = ent->cmd;
+ struct esp_target_data *tp;
+ int tgt = cmd->device->id;
+
+ tp = &esp->target[tgt];
+ if (esp->msg_in[2] == EXTENDED_SDTR) {
+ esp_msgin_sdtr(esp, tp);
+ return;
+ }
+ if (esp->msg_in[2] == EXTENDED_WDTR) {
+ esp_msgin_wdtr(esp, tp);
+ return;
+ }
+
+ printk("ESP: Unexpected extended msg type %x\n",
+ esp->msg_in[2]);
+
+ esp->msg_out[0] = ABORT_TASK_SET;
+ esp->msg_out_len = 1;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+}
+
+/* Analyze msgin bytes received from target so far. Return non-zero
+ * if there are more bytes needed to complete the message.
+ */
+static int esp_msgin_process(struct esp *esp)
+{
+ u8 msg0 = esp->msg_in[0];
+ int len = esp->msg_in_len;
+
+ if (msg0 & 0x80) {
+ /* Identify */
+ printk("ESP: Unexpected msgin identify\n");
+ return 0;
+ }
+
+ switch (msg0) {
+ case EXTENDED_MESSAGE:
+ if (len == 1)
+ return 1;
+ if (len < esp->msg_in[1] + 2)
+ return 1;
+ esp_msgin_extended(esp);
+ return 0;
+
+ case IGNORE_WIDE_RESIDUE: {
+ struct esp_cmd_entry *ent;
+ struct esp_cmd_priv *spriv;
+ if (len == 1)
+ return 1;
+
+ if (esp->msg_in[1] != 1)
+ goto do_reject;
+
+ ent = esp->active_cmd;
+ spriv = ESP_CMD_PRIV(ent->cmd);
+
+ if (spriv->cur_residue == sg_dma_len(spriv->cur_sg)) {
+ spriv->cur_sg--;
+ spriv->cur_residue = 1;
+ } else
+ spriv->cur_residue++;
+ spriv->tot_residue++;
+ return 0;
+ }
+ case NOP:
+ return 0;
+ case RESTORE_POINTERS:
+ esp_restore_pointers(esp, esp->active_cmd);
+ return 0;
+ case SAVE_POINTERS:
+ esp_save_pointers(esp, esp->active_cmd);
+ return 0;
+
+ case COMMAND_COMPLETE:
+ case DISCONNECT: {
+ struct esp_cmd_entry *ent = esp->active_cmd;
+
+ ent->message = msg0;
+ esp_event(esp, ESP_EVENT_FREE_BUS);
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ return 0;
+ }
+ case MESSAGE_REJECT:
+ esp_msgin_reject(esp);
+ return 0;
+
+ default:
+ do_reject:
+ esp->msg_out[0] = MESSAGE_REJECT;
+ esp->msg_out_len = 1;
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+ return 0;
+ }
+}
+
+static int esp_process_event(struct esp *esp)
+{
+ int write;
+
+again:
+ write = 0;
+ switch (esp->event) {
+ case ESP_EVENT_CHECK_PHASE:
+ switch (esp->sreg & ESP_STAT_PMASK) {
+ case ESP_DOP:
+ esp_event(esp, ESP_EVENT_DATA_OUT);
+ break;
+ case ESP_DIP:
+ esp_event(esp, ESP_EVENT_DATA_IN);
+ break;
+ case ESP_STATP:
+ esp_flush_fifo(esp);
+ scsi_esp_cmd(esp, ESP_CMD_ICCSEQ);
+ esp_event(esp, ESP_EVENT_STATUS);
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ return 1;
+
+ case ESP_MOP:
+ esp_event(esp, ESP_EVENT_MSGOUT);
+ break;
+
+ case ESP_MIP:
+ esp_event(esp, ESP_EVENT_MSGIN);
+ break;
+
+ case ESP_CMDP:
+ esp_event(esp, ESP_EVENT_CMD_START);
+ break;
+
+ default:
+ printk("ESP: Unexpected phase, sreg=%02x\n",
+ esp->sreg);
+ esp_schedule_reset(esp);
+ return 0;
+ }
+ goto again;
+ break;
+
+ case ESP_EVENT_DATA_IN:
+ write = 1;
+ /* fallthru */
+
+ case ESP_EVENT_DATA_OUT: {
+ struct esp_cmd_entry *ent = esp->active_cmd;
+ struct scsi_cmnd *cmd = ent->cmd;
+ dma_addr_t dma_addr = esp_cur_dma_addr(ent, cmd);
+ unsigned int dma_len = esp_cur_dma_len(ent, cmd);
+
+ if (esp->rev == ESP100)
+ scsi_esp_cmd(esp, ESP_CMD_NULL);
+
+ if (write)
+ ent->flags |= ESP_CMD_FLAG_WRITE;
+ else
+ ent->flags &= ~ESP_CMD_FLAG_WRITE;
+
+ dma_len = esp_dma_length_limit(esp, dma_addr, dma_len);
+ esp->data_dma_len = dma_len;
+
+ if (!dma_len) {
+ printk(KERN_ERR PFX "esp%d: DMA length is zero!\n",
+ esp->host->unique_id);
+ printk(KERN_ERR PFX "esp%d: cur adr[%08x] len[%08x]\n",
+ esp->host->unique_id,
+ esp_cur_dma_addr(ent, cmd),
+ esp_cur_dma_len(ent, cmd));
+ esp_schedule_reset(esp);
+ return 0;
+ }
+
+ esp_log_datastart("ESP: start data addr[%08x] len[%u] "
+ "write(%d)\n",
+ dma_addr, dma_len, write);
+
+ esp->ops->send_dma_cmd(esp, dma_addr, dma_len, dma_len,
+ write, ESP_CMD_DMA | ESP_CMD_TI);
+ esp_event(esp, ESP_EVENT_DATA_DONE);
+ break;
+ }
+ case ESP_EVENT_DATA_DONE: {
+ struct esp_cmd_entry *ent = esp->active_cmd;
+ struct scsi_cmnd *cmd = ent->cmd;
+ int bytes_sent;
+
+ if (esp->ops->dma_error(esp)) {
+ printk("ESP: data done, DMA error, resetting\n");
+ esp_schedule_reset(esp);
+ return 0;
+ }
+
+ if (ent->flags & ESP_CMD_FLAG_WRITE) {
+ /* XXX parity errors, etc. XXX */
+
+ esp->ops->dma_drain(esp);
+ }
+ esp->ops->dma_invalidate(esp);
+
+ if (esp->ireg != ESP_INTR_BSERV) {
+ /* We should always see exactly a bus-service
+ * interrupt at the end of a successful transfer.
+ */
+ printk("ESP: data done, not BSERV, resetting\n");
+ esp_schedule_reset(esp);
+ return 0;
+ }
+
+ bytes_sent = esp_data_bytes_sent(esp, ent, cmd);
+
+ esp_log_datadone("ESP: data done flgs[%x] sent[%d]\n",
+ ent->flags, bytes_sent);
+
+ if (bytes_sent < 0) {
+ /* XXX force sync mode for this target XXX */
+ esp_schedule_reset(esp);
+ return 0;
+ }
+
+ esp_advance_dma(esp, ent, cmd, bytes_sent);
+ esp_event(esp, ESP_EVENT_CHECK_PHASE);
+ goto again;
+ break;
+ }
+
+ case ESP_EVENT_STATUS: {
+ struct esp_cmd_entry *ent = esp->active_cmd;
+
+ if (esp->ireg & ESP_INTR_FDONE) {
+ ent->status = esp_read8(ESP_FDATA);
+ ent->message = esp_read8(ESP_FDATA);
+ scsi_esp_cmd(esp, ESP_CMD_MOK);
+ } else if (esp->ireg == ESP_INTR_BSERV) {
+ ent->status = esp_read8(ESP_FDATA);
+ ent->message = 0xff;
+ esp_event(esp, ESP_EVENT_MSGIN);
+ return 0;
+ }
+
+ if (ent->message != COMMAND_COMPLETE) {
+ printk("ESP: Unexpected message %x in status\n",
+ ent->message);
+ esp_schedule_reset(esp);
+ return 0;
+ }
+
+ esp_event(esp, ESP_EVENT_FREE_BUS);
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ break;
+ }
+ case ESP_EVENT_FREE_BUS: {
+ struct esp_cmd_entry *ent = esp->active_cmd;
+ struct scsi_cmnd *cmd = ent->cmd;
+
+ if (ent->message == COMMAND_COMPLETE ||
+ ent->message == DISCONNECT)
+ scsi_esp_cmd(esp, ESP_CMD_ESEL);
+
+ if (ent->message == COMMAND_COMPLETE) {
+ esp_log_cmddone("ESP: Command done status[%x] "
+ "message[%x]\n",
+ ent->status, ent->message);
+ if (ent->status == SAM_STAT_TASK_SET_FULL)
+ esp_event_queue_full(esp, ent);
+
+ if (ent->status == SAM_STAT_CHECK_CONDITION &&
+ !(ent->flags & ESP_CMD_FLAG_AUTOSENSE)) {
+ ent->flags |= ESP_CMD_FLAG_AUTOSENSE;
+ esp_autosense(esp, ent);
+ } else {
+ esp_cmd_is_done(esp, ent, cmd,
+ compose_result(ent->status,
+ ent->message,
+ DID_OK));
+ }
+ } else if (ent->message == DISCONNECT) {
+ esp_log_disconnect("ESP: Disconnecting tgt[%d] "
+ "tag[%x:%x]\n",
+ cmd->device->id,
+ ent->tag[0], ent->tag[1]);
+
+ esp->active_cmd = NULL;
+ esp_maybe_execute_command(esp);
+ } else {
+ printk("ESP: Unexpected message %x in freebus\n",
+ ent->message);
+ esp_schedule_reset(esp);
+ return 0;
+ }
+ if (esp->active_cmd)
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ break;
+ }
+ case ESP_EVENT_MSGOUT: {
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+
+ if (esp_debug & ESP_DEBUG_MSGOUT) {
+ int i;
+ printk("ESP: Sending message [ ");
+ for (i = 0; i < esp->msg_out_len; i++)
+ printk("%02x ", esp->msg_out[i]);
+ printk("]\n");
+ }
+
+ if (esp->rev == FASHME) {
+ int i;
+
+ /* Always use the fifo. */
+ for (i = 0; i < esp->msg_out_len; i++) {
+ esp_write8(esp->msg_out[i], ESP_FDATA);
+ esp_write8(0, ESP_FDATA);
+ }
+ scsi_esp_cmd(esp, ESP_CMD_TI);
+ } else {
+ if (esp->msg_out_len == 1) {
+ esp_write8(esp->msg_out[0], ESP_FDATA);
+ scsi_esp_cmd(esp, ESP_CMD_TI);
+ } else {
+ /* Use DMA. */
+ memcpy(esp->command_block,
+ esp->msg_out,
+ esp->msg_out_len);
+
+ esp->ops->send_dma_cmd(esp,
+ esp->command_block_dma,
+ esp->msg_out_len,
+ esp->msg_out_len,
+ 0,
+ ESP_CMD_DMA|ESP_CMD_TI);
+ }
+ }
+ esp_event(esp, ESP_EVENT_MSGOUT_DONE);
+ break;
+ }
+ case ESP_EVENT_MSGOUT_DONE:
+ if (esp->rev == FASHME) {
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ } else {
+ if (esp->msg_out_len > 1)
+ esp->ops->dma_invalidate(esp);
+ }
+
+ if (!(esp->ireg & ESP_INTR_DC)) {
+ if (esp->rev != FASHME)
+ scsi_esp_cmd(esp, ESP_CMD_NULL);
+ }
+ esp_event(esp, ESP_EVENT_CHECK_PHASE);
+ goto again;
+ case ESP_EVENT_MSGIN:
+ if (esp->ireg & ESP_INTR_BSERV) {
+ if (esp->rev == FASHME) {
+ if (!(esp_read8(ESP_STATUS2) &
+ ESP_STAT2_FEMPTY))
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ } else {
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ if (esp->rev == ESP100)
+ scsi_esp_cmd(esp, ESP_CMD_NULL);
+ }
+ scsi_esp_cmd(esp, ESP_CMD_TI);
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ return 1;
+ }
+ if (esp->ireg & ESP_INTR_FDONE) {
+ u8 val;
+
+ if (esp->rev == FASHME)
+ val = esp->fifo[0];
+ else
+ val = esp_read8(ESP_FDATA);
+ esp->msg_in[esp->msg_in_len++] = val;
+
+ esp_log_msgin("ESP: Got msgin byte %x\n", val);
+
+ if (!esp_msgin_process(esp))
+ esp->msg_in_len = 0;
+
+ if (esp->rev == FASHME)
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+
+ scsi_esp_cmd(esp, ESP_CMD_MOK);
+
+ if (esp->event != ESP_EVENT_FREE_BUS)
+ esp_event(esp, ESP_EVENT_CHECK_PHASE);
+ } else {
+ printk("ESP: MSGIN neither BSERV not FDON, resetting");
+ esp_schedule_reset(esp);
+ return 0;
+ }
+ break;
+ case ESP_EVENT_CMD_START:
+ memcpy(esp->command_block, esp->cmd_bytes_ptr,
+ esp->cmd_bytes_left);
+ if (esp->rev == FASHME)
+ scsi_esp_cmd(esp, ESP_CMD_FLUSH);
+ esp->ops->send_dma_cmd(esp, esp->command_block_dma,
+ esp->cmd_bytes_left, 16, 0,
+ ESP_CMD_DMA | ESP_CMD_TI);
+ esp_event(esp, ESP_EVENT_CMD_DONE);
+ esp->flags |= ESP_FLAG_QUICKIRQ_CHECK;
+ break;
+ case ESP_EVENT_CMD_DONE:
+ esp->ops->dma_invalidate(esp);
+ if (esp->ireg & ESP_INTR_BSERV) {
+ esp_event(esp, ESP_EVENT_CHECK_PHASE);
+ goto again;
+ }
+ esp_schedule_reset(esp);
+ return 0;
+ break;
+
+ case ESP_EVENT_RESET:
+ scsi_esp_cmd(esp, ESP_CMD_RS);
+ break;
+
+ default:
+ printk("ESP: Unexpected event %x, resetting\n",
+ esp->event);
+ esp_schedule_reset(esp);
+ return 0;
+ break;
+ }
+ return 1;
+}
+
+static void esp_reset_cleanup_one(struct esp *esp, struct esp_cmd_entry *ent)
+{
+ struct scsi_cmnd *cmd = ent->cmd;
+
+ esp_unmap_dma(esp, cmd);
+ esp_free_lun_tag(ent, cmd->device->hostdata);
+ cmd->result = DID_RESET << 16;
+
+ if (ent->flags & ESP_CMD_FLAG_AUTOSENSE) {
+ esp->ops->unmap_single(esp, ent->sense_dma,
+ SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
+ ent->sense_ptr = NULL;
+ }
+
+ cmd->scsi_done(cmd);
+ list_del(&ent->list);
+ esp_put_ent(esp, ent);
+}
+
+static void esp_clear_hold(struct scsi_device *dev, void *data)
+{
+ struct esp_lun_data *lp = dev->hostdata;
+
+ BUG_ON(lp->num_tagged);
+ lp->hold = 0;
+}
+
+static void esp_reset_cleanup(struct esp *esp)
+{
+ struct esp_cmd_entry *ent, *tmp;
+ int i;
+
+ list_for_each_entry_safe(ent, tmp, &esp->queued_cmds, list) {
+ struct scsi_cmnd *cmd = ent->cmd;
+
+ list_del(&ent->list);
+ cmd->result = DID_RESET << 16;
+ cmd->scsi_done(cmd);
+ esp_put_ent(esp, ent);
+ }
+
+ list_for_each_entry_safe(ent, tmp, &esp->active_cmds, list) {
+ if (ent == esp->active_cmd)
+ esp->active_cmd = NULL;
+ esp_reset_cleanup_one(esp, ent);
+ }
+
+ BUG_ON(esp->active_cmd != NULL);
+
+ /* Force renegotiation of sync/wide transfers. */
+ for (i = 0; i < ESP_MAX_TARGET; i++) {
+ struct esp_target_data *tp = &esp->target[i];
+
+ tp->esp_period = 0;
+ tp->esp_offset = 0;
+ tp->esp_config3 &= ~(ESP_CONFIG3_EWIDE |
+ ESP_CONFIG3_FSCSI |
+ ESP_CONFIG3_FAST);
+ tp->flags &= ~ESP_TGT_WIDE;
+ tp->flags |= ESP_TGT_CHECK_NEGO;
+
+ if (tp->starget)
+ starget_for_each_device(tp->starget, NULL,
+ esp_clear_hold);
+ }
+}
+
+/* Runs under host->lock */
+static void __esp_interrupt(struct esp *esp)
+{
+ int finish_reset, intr_done;
+ u8 phase;
+
+ esp->sreg = esp_read8(ESP_STATUS);
+
+ if (esp->flags & ESP_FLAG_RESETTING) {
+ finish_reset = 1;
+ } else {
+ if (esp_check_gross_error(esp))
+ return;
+
+ finish_reset = esp_check_spur_intr(esp);
+ if (finish_reset < 0)
+ return;
+ }
+
+ esp->ireg = esp_read8(ESP_INTRPT);
+
+ if (esp->ireg & ESP_INTR_SR)
+ finish_reset = 1;
+
+ if (finish_reset) {
+ esp_reset_cleanup(esp);
+ if (esp->eh_reset) {
+ complete(esp->eh_reset);
+ esp->eh_reset = NULL;
+ }
+ return;
+ }
+
+ phase = (esp->sreg & ESP_STAT_PMASK);
+ if (esp->rev == FASHME) {
+ if (((phase != ESP_DIP && phase != ESP_DOP) &&
+ esp->select_state == ESP_SELECT_NONE &&
+ esp->event != ESP_EVENT_STATUS &&
+ esp->event != ESP_EVENT_DATA_DONE) ||
+ (esp->ireg & ESP_INTR_RSEL)) {
+ esp->sreg2 = esp_read8(ESP_STATUS2);
+ if (!(esp->sreg2 & ESP_STAT2_FEMPTY) ||
+ (esp->sreg2 & ESP_STAT2_F1BYTE))
+ hme_read_fifo(esp);
+ }
+ }
+
+ esp_log_intr("ESP: intr sreg[%02x] seqreg[%02x] "
+ "sreg2[%02x] ireg[%02x]\n",
+ esp->sreg, esp->seqreg, esp->sreg2, esp->ireg);
+
+ intr_done = 0;
+
+ if (esp->ireg & (ESP_INTR_S | ESP_INTR_SATN | ESP_INTR_IC)) {
+ printk("ESP: unexpected IREG %02x\n", esp->ireg);
+ if (esp->ireg & ESP_INTR_IC)
+ esp_dump_cmd_log(esp);
+
+ esp_schedule_reset(esp);
+ } else {
+ if (!(esp->ireg & ESP_INTR_RSEL)) {
+ /* Some combination of FDONE, BSERV, DC. */
+ if (esp->select_state != ESP_SELECT_NONE)
+ intr_done = esp_finish_select(esp);
+ } else if (esp->ireg & ESP_INTR_RSEL) {
+ if (esp->active_cmd)
+ (void) esp_finish_select(esp);
+ intr_done = esp_reconnect(esp);
+ }
+ }
+ while (!intr_done)
+ intr_done = esp_process_event(esp);
+}
+
+irqreturn_t scsi_esp_intr(int irq, void *dev_id)
+{
+ struct esp *esp = dev_id;
+ unsigned long flags;
+ irqreturn_t ret;
+
+ spin_lock_irqsave(esp->host->host_lock, flags);
+ ret = IRQ_NONE;
+ if (esp->ops->irq_pending(esp)) {
+ ret = IRQ_HANDLED;
+ for (;;) {
+ int i;
+
+ __esp_interrupt(esp);
+ if (!(esp->flags & ESP_FLAG_QUICKIRQ_CHECK))
+ break;
+ esp->flags &= ~ESP_FLAG_QUICKIRQ_CHECK;
+
+ for (i = 0; i < ESP_QUICKIRQ_LIMIT; i++) {
+ if (esp->ops->irq_pending(esp))
+ break;
+ }
+ if (i == ESP_QUICKIRQ_LIMIT)
+ break;
+ }
+ }
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(scsi_esp_intr);
+
+static void __devinit esp_get_revision(struct esp *esp)
+{
+ u8 val;
+
+ esp->config1 = (ESP_CONFIG1_PENABLE | (esp->scsi_id & 7));
+ esp->config2 = (ESP_CONFIG2_SCSI2ENAB | ESP_CONFIG2_REGPARITY);
+ esp_write8(esp->config2, ESP_CFG2);
+
+ val = esp_read8(ESP_CFG2);
+ val &= ~ESP_CONFIG2_MAGIC;
+ if (val != (ESP_CONFIG2_SCSI2ENAB | ESP_CONFIG2_REGPARITY)) {
+ /* If what we write to cfg2 does not come back, cfg2 is not
+ * implemented, therefore this must be a plain esp100.
+ */
+ esp->rev = ESP100;
+ } else {
+ esp->config2 = 0;
+ esp_set_all_config3(esp, 5);
+ esp->prev_cfg3 = 5;
+ esp_write8(esp->config2, ESP_CFG2);
+ esp_write8(0, ESP_CFG3);
+ esp_write8(esp->prev_cfg3, ESP_CFG3);
+
+ val = esp_read8(ESP_CFG3);
+ if (val != 5) {
+ /* The cfg2 register is implemented, however
+ * cfg3 is not, must be esp100a.
+ */
+ esp->rev = ESP100A;
+ } else {
+ esp_set_all_config3(esp, 0);
+ esp->prev_cfg3 = 0;
+ esp_write8(esp->prev_cfg3, ESP_CFG3);
+
+ /* All of cfg{1,2,3} implemented, must be one of
+ * the fas variants, figure out which one.
+ */
+ if (esp->cfact == 0 || esp->cfact > ESP_CCF_F5) {
+ esp->rev = FAST;
+ esp->sync_defp = SYNC_DEFP_FAST;
+ } else {
+ esp->rev = ESP236;
+ }
+ esp->config2 = 0;
+ esp_write8(esp->config2, ESP_CFG2);
+ }
+ }
+}
+
+static void __devinit esp_init_swstate(struct esp *esp)
+{
+ int i;
+
+ INIT_LIST_HEAD(&esp->queued_cmds);
+ INIT_LIST_HEAD(&esp->active_cmds);
+ INIT_LIST_HEAD(&esp->esp_cmd_pool);
+
+ /* Start with a clear state, domain validation (via ->slave_configure,
+ * spi_dv_device()) will attempt to enable SYNC, WIDE, and tagged
+ * commands.
+ */
+ for (i = 0 ; i < ESP_MAX_TARGET; i++) {
+ esp->target[i].flags = 0;
+ esp->target[i].nego_goal_period = 0;
+ esp->target[i].nego_goal_offset = 0;
+ esp->target[i].nego_goal_width = 0;
+ esp->target[i].nego_goal_tags = 0;
+ }
+}
+
+/* This places the ESP into a known state at boot time. */
+static void __devinit esp_bootup_reset(struct esp *esp)
+{
+ u8 val;
+
+ /* Reset the DMA */
+ esp->ops->reset_dma(esp);
+
+ /* Reset the ESP */
+ esp_reset_esp(esp);
+
+ /* Reset the SCSI bus, but tell ESP not to generate an irq */
+ val = esp_read8(ESP_CFG1);
+ val |= ESP_CONFIG1_SRRDISAB;
+ esp_write8(val, ESP_CFG1);
+
+ scsi_esp_cmd(esp, ESP_CMD_RS);
+ udelay(400);
+
+ esp_write8(esp->config1, ESP_CFG1);
+
+ /* Eat any bitrot in the chip and we are done... */
+ esp_read8(ESP_INTRPT);
+}
+
+static void __devinit esp_set_clock_params(struct esp *esp)
+{
+ int fmhz;
+ u8 ccf;
+
+ /* This is getting messy but it has to be done correctly or else
+ * you get weird behavior all over the place. We are trying to
+ * basically figure out three pieces of information.
+ *
+ * a) Clock Conversion Factor
+ *
+ * This is a representation of the input crystal clock frequency
+ * going into the ESP on this machine. Any operation whose timing
+ * is longer than 400ns depends on this value being correct. For
+ * example, you'll get blips for arbitration/selection during high
+ * load or with multiple targets if this is not set correctly.
+ *
+ * b) Selection Time-Out
+ *
+ * The ESP isn't very bright and will arbitrate for the bus and try
+ * to select a target forever if you let it. This value tells the
+ * ESP when it has taken too long to negotiate and that it should
+ * interrupt the CPU so we can see what happened. The value is
+ * computed as follows (from NCR/Symbios chip docs).
+ *
+ * (Time Out Period) * (Input Clock)
+ * STO = ----------------------------------
+ * (8192) * (Clock Conversion Factor)
+ *
+ * We use a time out period of 250ms (ESP_BUS_TIMEOUT).
+ *
+ * c) Imperical constants for synchronous offset and transfer period
+ * register values
+ *
+ * This entails the smallest and largest sync period we could ever
+ * handle on this ESP.
+ */
+ fmhz = esp->cfreq;
+
+ ccf = ((fmhz / 1000000) + 4) / 5;
+ if (ccf == 1)
+ ccf = 2;
+
+ /* If we can't find anything reasonable, just assume 20MHZ.
+ * This is the clock frequency of the older sun4c's where I've
+ * been unable to find the clock-frequency PROM property. All
+ * other machines provide useful values it seems.
+ */
+ if (fmhz <= 5000000 || ccf < 1 || ccf > 8) {
+ fmhz = 20000000;
+ ccf = 4;
+ }
+
+ esp->cfact = (ccf == 8 ? 0 : ccf);
+ esp->cfreq = fmhz;
+ esp->ccycle = ESP_MHZ_TO_CYCLE(fmhz);
+ esp->ctick = ESP_TICK(ccf, esp->ccycle);
+ esp->neg_defp = ESP_NEG_DEFP(fmhz, ccf);
+ esp->sync_defp = SYNC_DEFP_SLOW;
+}
+
+static const char *esp_chip_names[] = {
+ "ESP100",
+ "ESP100A",
+ "ESP236",
+ "FAS236",
+ "FAS100A",
+ "FAST",
+ "FASHME",
+};
+
+static struct scsi_transport_template *esp_transport_template;
+
+int __devinit scsi_esp_register(struct esp *esp, struct device *dev)
+{
+ static int instance;
+ int err;
+
+ esp->host->transportt = esp_transport_template;
+ esp->host->max_lun = ESP_MAX_LUN;
+ esp->host->cmd_per_lun = 2;
+
+ esp_set_clock_params(esp);
+
+ esp_get_revision(esp);
+
+ esp_init_swstate(esp);
+
+ esp_bootup_reset(esp);
+
+ printk(KERN_INFO PFX "esp%u, regs[%1p:%1p] irq[%u]\n",
+ esp->host->unique_id, esp->regs, esp->dma_regs,
+ esp->host->irq);
+ printk(KERN_INFO PFX "esp%u is a %s, %u MHz (ccf=%u), SCSI ID %u\n",
+ esp->host->unique_id, esp_chip_names[esp->rev],
+ esp->cfreq / 1000000, esp->cfact, esp->scsi_id);
+
+ /* Let the SCSI bus reset settle. */
+ ssleep(esp_bus_reset_settle);
+
+ err = scsi_add_host(esp->host, dev);
+ if (err)
+ return err;
+
+ esp->host->unique_id = instance++;
+
+ scsi_scan_host(esp->host);
+
+ return 0;
+}
+EXPORT_SYMBOL(scsi_esp_register);
+
+void __devexit scsi_esp_unregister(struct esp *esp)
+{
+ scsi_remove_host(esp->host);
+}
+EXPORT_SYMBOL(scsi_esp_unregister);
+
+static int esp_slave_alloc(struct scsi_device *dev)
+{
+ struct esp *esp = host_to_esp(dev->host);
+ struct esp_target_data *tp = &esp->target[dev->id];
+ struct esp_lun_data *lp;
+
+ lp = kzalloc(sizeof(*lp), GFP_KERNEL);
+ if (!lp)
+ return -ENOMEM;
+ dev->hostdata = lp;
+
+ tp->starget = dev->sdev_target;
+
+ spi_min_period(tp->starget) = esp->min_period;
+ spi_max_offset(tp->starget) = 15;
+
+ if (esp->flags & ESP_FLAG_WIDE_CAPABLE)
+ spi_max_width(tp->starget) = 1;
+ else
+ spi_max_width(tp->starget) = 0;
+
+ return 0;
+}
+
+static int esp_slave_configure(struct scsi_device *dev)
+{
+ struct esp *esp = host_to_esp(dev->host);
+ struct esp_target_data *tp = &esp->target[dev->id];
+ int goal_tags, queue_depth;
+
+ goal_tags = 0;
+
+ if (dev->tagged_supported) {
+ /* XXX make this configurable somehow XXX */
+ goal_tags = ESP_DEFAULT_TAGS;
+
+ if (goal_tags > ESP_MAX_TAG)
+ goal_tags = ESP_MAX_TAG;
+ }
+
+ queue_depth = goal_tags;
+ if (queue_depth < dev->host->cmd_per_lun)
+ queue_depth = dev->host->cmd_per_lun;
+
+ if (goal_tags) {
+ scsi_set_tag_type(dev, MSG_ORDERED_TAG);
+ scsi_activate_tcq(dev, queue_depth);
+ } else {
+ scsi_deactivate_tcq(dev, queue_depth);
+ }
+ tp->flags |= ESP_TGT_DISCONNECT;
+
+ if (!spi_initial_dv(dev->sdev_target))
+ spi_dv_device(dev);
+
+ return 0;
+}
+
+static void esp_slave_destroy(struct scsi_device *dev)
+{
+ struct esp_lun_data *lp = dev->hostdata;
+
+ kfree(lp);
+ dev->hostdata = NULL;
+}
+
+static int esp_eh_abort_handler(struct scsi_cmnd *cmd)
+{
+ struct esp *esp = host_to_esp(cmd->device->host);
+ struct esp_cmd_entry *ent, *tmp;
+ struct completion eh_done;
+ unsigned long flags;
+
+ /* XXX This helps a lot with debugging but might be a bit
+ * XXX much for the final driver.
+ */
+ spin_lock_irqsave(esp->host->host_lock, flags);
+ printk(KERN_ERR PFX "esp%d: Aborting command [%p:%02x]\n",
+ esp->host->unique_id, cmd, cmd->cmnd[0]);
+ ent = esp->active_cmd;
+ if (ent)
+ printk(KERN_ERR PFX "esp%d: Current command [%p:%02x]\n",
+ esp->host->unique_id, ent->cmd, ent->cmd->cmnd[0]);
+ list_for_each_entry(ent, &esp->queued_cmds, list) {
+ printk(KERN_ERR PFX "esp%d: Queued command [%p:%02x]\n",
+ esp->host->unique_id, ent->cmd, ent->cmd->cmnd[0]);
+ }
+ list_for_each_entry(ent, &esp->active_cmds, list) {
+ printk(KERN_ERR PFX "esp%d: Active command [%p:%02x]\n",
+ esp->host->unique_id, ent->cmd, ent->cmd->cmnd[0]);
+ }
+ esp_dump_cmd_log(esp);
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ spin_lock_irqsave(esp->host->host_lock, flags);
+
+ ent = NULL;
+ list_for_each_entry(tmp, &esp->queued_cmds, list) {
+ if (tmp->cmd == cmd) {
+ ent = tmp;
+ break;
+ }
+ }
+
+ if (ent) {
+ /* Easiest case, we didn't even issue the command
+ * yet so it is trivial to abort.
+ */
+ list_del(&ent->list);
+
+ cmd->result = DID_ABORT << 16;
+ cmd->scsi_done(cmd);
+
+ esp_put_ent(esp, ent);
+
+ goto out_success;
+ }
+
+ init_completion(&eh_done);
+
+ ent = esp->active_cmd;
+ if (ent && ent->cmd == cmd) {
+ /* Command is the currently active command on
+ * the bus. If we already have an output message
+ * pending, no dice.
+ */
+ if (esp->msg_out_len)
+ goto out_failure;
+
+ /* Send out an abort, encouraging the target to
+ * go to MSGOUT phase by asserting ATN.
+ */
+ esp->msg_out[0] = ABORT_TASK_SET;
+ esp->msg_out_len = 1;
+ ent->eh_done = &eh_done;
+
+ scsi_esp_cmd(esp, ESP_CMD_SATN);
+ } else {
+ /* The command is disconnected. This is not easy to
+ * abort. For now we fail and let the scsi error
+ * handling layer go try a scsi bus reset or host
+ * reset.
+ *
+ * What we could do is put together a scsi command
+ * solely for the purpose of sending an abort message
+ * to the target. Coming up with all the code to
+ * cook up scsi commands, special case them everywhere,
+ * etc. is for questionable gain and it would be better
+ * if the generic scsi error handling layer could do at
+ * least some of that for us.
+ *
+ * Anyways this is an area for potential future improvement
+ * in this driver.
+ */
+ goto out_failure;
+ }
+
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ if (!wait_for_completion_timeout(&eh_done, 5 * HZ)) {
+ spin_lock_irqsave(esp->host->host_lock, flags);
+ ent->eh_done = NULL;
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ return FAILED;
+ }
+
+ return SUCCESS;
+
+out_success:
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+ return SUCCESS;
+
+out_failure:
+ /* XXX This might be a good location to set ESP_TGT_BROKEN
+ * XXX since we know which target/lun in particular is
+ * XXX causing trouble.
+ */
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+ return FAILED;
+}
+
+static int esp_eh_bus_reset_handler(struct scsi_cmnd *cmd)
+{
+ struct esp *esp = host_to_esp(cmd->device->host);
+ struct completion eh_reset;
+ unsigned long flags;
+
+ init_completion(&eh_reset);
+
+ spin_lock_irqsave(esp->host->host_lock, flags);
+
+ esp->eh_reset = &eh_reset;
+
+ /* XXX This is too simple... We should add lots of
+ * XXX checks here so that if we find that the chip is
+ * XXX very wedged we return failure immediately so
+ * XXX that we can perform a full chip reset.
+ */
+ esp->flags |= ESP_FLAG_RESETTING;
+ scsi_esp_cmd(esp, ESP_CMD_RS);
+
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ ssleep(esp_bus_reset_settle);
+
+ if (!wait_for_completion_timeout(&eh_reset, 5 * HZ)) {
+ spin_lock_irqsave(esp->host->host_lock, flags);
+ esp->eh_reset = NULL;
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ return FAILED;
+ }
+
+ return SUCCESS;
+}
+
+/* All bets are off, reset the entire device. */
+static int esp_eh_host_reset_handler(struct scsi_cmnd *cmd)
+{
+ struct esp *esp = host_to_esp(cmd->device->host);
+ unsigned long flags;
+
+ spin_lock_irqsave(esp->host->host_lock, flags);
+ esp_bootup_reset(esp);
+ esp_reset_cleanup(esp);
+ spin_unlock_irqrestore(esp->host->host_lock, flags);
+
+ ssleep(esp_bus_reset_settle);
+
+ return SUCCESS;
+}
+
+static const char *esp_info(struct Scsi_Host *host)
+{
+ return "esp";
+}
+
+struct scsi_host_template scsi_esp_template = {
+ .module = THIS_MODULE,
+ .name = "esp",
+ .info = esp_info,
+ .queuecommand = esp_queuecommand,
+ .slave_alloc = esp_slave_alloc,
+ .slave_configure = esp_slave_configure,
+ .slave_destroy = esp_slave_destroy,
+ .eh_abort_handler = esp_eh_abort_handler,
+ .eh_bus_reset_handler = esp_eh_bus_reset_handler,
+ .eh_host_reset_handler = esp_eh_host_reset_handler,
+ .can_queue = 7,
+ .this_id = 7,
+ .sg_tablesize = SG_ALL,
+ .use_clustering = ENABLE_CLUSTERING,
+ .max_sectors = 0xffff,
+ .skip_settle_delay = 1,
+};
+EXPORT_SYMBOL(scsi_esp_template);
+
+static void esp_get_signalling(struct Scsi_Host *host)
+{
+ struct esp *esp = host_to_esp(host);
+ enum spi_signal_type type;
+
+ if (esp->flags & ESP_FLAG_DIFFERENTIAL)
+ type = SPI_SIGNAL_HVD;
+ else
+ type = SPI_SIGNAL_SE;
+
+ spi_signalling(host) = type;
+}
+
+static void esp_set_offset(struct scsi_target *target, int offset)
+{
+ struct Scsi_Host *host = dev_to_shost(target->dev.parent);
+ struct esp *esp = host_to_esp(host);
+ struct esp_target_data *tp = &esp->target[target->id];
+
+ tp->nego_goal_offset = offset;
+ tp->flags |= ESP_TGT_CHECK_NEGO;
+}
+
+static void esp_set_period(struct scsi_target *target, int period)
+{
+ struct Scsi_Host *host = dev_to_shost(target->dev.parent);
+ struct esp *esp = host_to_esp(host);
+ struct esp_target_data *tp = &esp->target[target->id];
+
+ tp->nego_goal_period = period;
+ tp->flags |= ESP_TGT_CHECK_NEGO;
+}
+
+static void esp_set_width(struct scsi_target *target, int width)
+{
+ struct Scsi_Host *host = dev_to_shost(target->dev.parent);
+ struct esp *esp = host_to_esp(host);
+ struct esp_target_data *tp = &esp->target[target->id];
+
+ tp->nego_goal_width = (width ? 1 : 0);
+ tp->flags |= ESP_TGT_CHECK_NEGO;
+}
+
+static struct spi_function_template esp_transport_ops = {
+ .set_offset = esp_set_offset,
+ .show_offset = 1,
+ .set_period = esp_set_period,
+ .show_period = 1,
+ .set_width = esp_set_width,
+ .show_width = 1,
+ .get_signalling = esp_get_signalling,
+};
+
+static int __init esp_init(void)
+{
+ BUILD_BUG_ON(sizeof(struct scsi_pointer) <
+ sizeof(struct esp_cmd_priv));
+
+ esp_transport_template = spi_attach_transport(&esp_transport_ops);
+ if (!esp_transport_template)
+ return -ENODEV;
+
+ return 0;
+}
+
+static void __exit esp_exit(void)
+{
+ spi_release_transport(esp_transport_template);
+}
+
+MODULE_DESCRIPTION("ESP SCSI driver core");
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_param(esp_bus_reset_settle, int, 0);
+MODULE_PARM_DESC(esp_bus_reset_settle,
+ "ESP scsi bus reset delay in seconds");
+
+module_param(esp_debug, int, 0);
+MODULE_PARM_DESC(esp_debug,
+"ESP bitmapped debugging message enable value:\n"
+" 0x00000001 Log interrupt events\n"
+" 0x00000002 Log scsi commands\n"
+" 0x00000004 Log resets\n"
+" 0x00000008 Log message in events\n"
+" 0x00000010 Log message out events\n"
+" 0x00000020 Log command completion\n"
+" 0x00000040 Log disconnects\n"
+" 0x00000080 Log data start\n"
+" 0x00000100 Log data done\n"
+" 0x00000200 Log reconnects\n"
+" 0x00000400 Log auto-sense data\n"
+);
+
+module_init(esp_init);
+module_exit(esp_exit);
--- /dev/null
+/* esp_scsi.h: Defines and structures for the ESP drier.
+ *
+ * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
+ */
+
+#ifndef _ESP_SCSI_H
+#define _ESP_SCSI_H
+
+ /* Access Description Offset */
+#define ESP_TCLOW 0x00UL /* rw Low bits transfer count 0x00 */
+#define ESP_TCMED 0x01UL /* rw Mid bits transfer count 0x04 */
+#define ESP_FDATA 0x02UL /* rw FIFO data bits 0x08 */
+#define ESP_CMD 0x03UL /* rw SCSI command bits 0x0c */
+#define ESP_STATUS 0x04UL /* ro ESP status register 0x10 */
+#define ESP_BUSID ESP_STATUS /* wo BusID for sel/resel 0x10 */
+#define ESP_INTRPT 0x05UL /* ro Kind of interrupt 0x14 */
+#define ESP_TIMEO ESP_INTRPT /* wo Timeout for sel/resel 0x14 */
+#define ESP_SSTEP 0x06UL /* ro Sequence step register 0x18 */
+#define ESP_STP ESP_SSTEP /* wo Transfer period/sync 0x18 */
+#define ESP_FFLAGS 0x07UL /* ro Bits current FIFO info 0x1c */
+#define ESP_SOFF ESP_FFLAGS /* wo Sync offset 0x1c */
+#define ESP_CFG1 0x08UL /* rw First cfg register 0x20 */
+#define ESP_CFACT 0x09UL /* wo Clock conv factor 0x24 */
+#define ESP_STATUS2 ESP_CFACT /* ro HME status2 register 0x24 */
+#define ESP_CTEST 0x0aUL /* wo Chip test register 0x28 */
+#define ESP_CFG2 0x0bUL /* rw Second cfg register 0x2c */
+#define ESP_CFG3 0x0cUL /* rw Third cfg register 0x30 */
+#define ESP_TCHI 0x0eUL /* rw High bits transf count 0x38 */
+#define ESP_UID ESP_TCHI /* ro Unique ID code 0x38 */
+#define FAS_RLO ESP_TCHI /* rw HME extended counter 0x38 */
+#define ESP_FGRND 0x0fUL /* rw Data base for fifo 0x3c */
+#define FAS_RHI ESP_FGRND /* rw HME extended counter 0x3c */
+
+#define SBUS_ESP_REG_SIZE 0x40UL
+
+/* Bitfield meanings for the above registers. */
+
+/* ESP config reg 1, read-write, found on all ESP chips */
+#define ESP_CONFIG1_ID 0x07 /* My BUS ID bits */
+#define ESP_CONFIG1_CHTEST 0x08 /* Enable ESP chip tests */
+#define ESP_CONFIG1_PENABLE 0x10 /* Enable parity checks */
+#define ESP_CONFIG1_PARTEST 0x20 /* Parity test mode enabled? */
+#define ESP_CONFIG1_SRRDISAB 0x40 /* Disable SCSI reset reports */
+#define ESP_CONFIG1_SLCABLE 0x80 /* Enable slow cable mode */
+
+/* ESP config reg 2, read-write, found only on esp100a+esp200+esp236 chips */
+#define ESP_CONFIG2_DMAPARITY 0x01 /* enable DMA Parity (200,236) */
+#define ESP_CONFIG2_REGPARITY 0x02 /* enable reg Parity (200,236) */
+#define ESP_CONFIG2_BADPARITY 0x04 /* Bad parity target abort */
+#define ESP_CONFIG2_SCSI2ENAB 0x08 /* Enable SCSI-2 features (tgtmode) */
+#define ESP_CONFIG2_HI 0x10 /* High Impedance DREQ ??? */
+#define ESP_CONFIG2_HMEFENAB 0x10 /* HME features enable */
+#define ESP_CONFIG2_BCM 0x20 /* Enable byte-ctrl (236) */
+#define ESP_CONFIG2_DISPINT 0x20 /* Disable pause irq (hme) */
+#define ESP_CONFIG2_FENAB 0x40 /* Enable features (fas100,216) */
+#define ESP_CONFIG2_SPL 0x40 /* Enable status-phase latch (236) */
+#define ESP_CONFIG2_MKDONE 0x40 /* HME magic feature */
+#define ESP_CONFIG2_HME32 0x80 /* HME 32 extended */
+#define ESP_CONFIG2_MAGIC 0xe0 /* Invalid bits... */
+
+/* ESP config register 3 read-write, found only esp236+fas236+fas100a+hme chips */
+#define ESP_CONFIG3_FCLOCK 0x01 /* FAST SCSI clock rate (esp100a/hme) */
+#define ESP_CONFIG3_TEM 0x01 /* Enable thresh-8 mode (esp/fas236) */
+#define ESP_CONFIG3_FAST 0x02 /* Enable FAST SCSI (esp100a/hme) */
+#define ESP_CONFIG3_ADMA 0x02 /* Enable alternate-dma (esp/fas236) */
+#define ESP_CONFIG3_TENB 0x04 /* group2 SCSI2 support (esp100a/hme) */
+#define ESP_CONFIG3_SRB 0x04 /* Save residual byte (esp/fas236) */
+#define ESP_CONFIG3_TMS 0x08 /* Three-byte msg's ok (esp100a/hme) */
+#define ESP_CONFIG3_FCLK 0x08 /* Fast SCSI clock rate (esp/fas236) */
+#define ESP_CONFIG3_IDMSG 0x10 /* ID message checking (esp100a/hme) */
+#define ESP_CONFIG3_FSCSI 0x10 /* Enable FAST SCSI (esp/fas236) */
+#define ESP_CONFIG3_GTM 0x20 /* group2 SCSI2 support (esp/fas236) */
+#define ESP_CONFIG3_IDBIT3 0x20 /* Bit 3 of HME SCSI-ID (hme) */
+#define ESP_CONFIG3_TBMS 0x40 /* Three-byte msg's ok (esp/fas236) */
+#define ESP_CONFIG3_EWIDE 0x40 /* Enable Wide-SCSI (hme) */
+#define ESP_CONFIG3_IMS 0x80 /* ID msg chk'ng (esp/fas236) */
+#define ESP_CONFIG3_OBPUSH 0x80 /* Push odd-byte to dma (hme) */
+
+/* ESP command register read-write */
+/* Group 1 commands: These may be sent at any point in time to the ESP
+ * chip. None of them can generate interrupts 'cept
+ * the "SCSI bus reset" command if you have not disabled
+ * SCSI reset interrupts in the config1 ESP register.
+ */
+#define ESP_CMD_NULL 0x00 /* Null command, ie. a nop */
+#define ESP_CMD_FLUSH 0x01 /* FIFO Flush */
+#define ESP_CMD_RC 0x02 /* Chip reset */
+#define ESP_CMD_RS 0x03 /* SCSI bus reset */
+
+/* Group 2 commands: ESP must be an initiator and connected to a target
+ * for these commands to work.
+ */
+#define ESP_CMD_TI 0x10 /* Transfer Information */
+#define ESP_CMD_ICCSEQ 0x11 /* Initiator cmd complete sequence */
+#define ESP_CMD_MOK 0x12 /* Message okie-dokie */
+#define ESP_CMD_TPAD 0x18 /* Transfer Pad */
+#define ESP_CMD_SATN 0x1a /* Set ATN */
+#define ESP_CMD_RATN 0x1b /* De-assert ATN */
+
+/* Group 3 commands: ESP must be in the MSGOUT or MSGIN state and be connected
+ * to a target as the initiator for these commands to work.
+ */
+#define ESP_CMD_SMSG 0x20 /* Send message */
+#define ESP_CMD_SSTAT 0x21 /* Send status */
+#define ESP_CMD_SDATA 0x22 /* Send data */
+#define ESP_CMD_DSEQ 0x23 /* Discontinue Sequence */
+#define ESP_CMD_TSEQ 0x24 /* Terminate Sequence */
+#define ESP_CMD_TCCSEQ 0x25 /* Target cmd cmplt sequence */
+#define ESP_CMD_DCNCT 0x27 /* Disconnect */
+#define ESP_CMD_RMSG 0x28 /* Receive Message */
+#define ESP_CMD_RCMD 0x29 /* Receive Command */
+#define ESP_CMD_RDATA 0x2a /* Receive Data */
+#define ESP_CMD_RCSEQ 0x2b /* Receive cmd sequence */
+
+/* Group 4 commands: The ESP must be in the disconnected state and must
+ * not be connected to any targets as initiator for
+ * these commands to work.
+ */
+#define ESP_CMD_RSEL 0x40 /* Reselect */
+#define ESP_CMD_SEL 0x41 /* Select w/o ATN */
+#define ESP_CMD_SELA 0x42 /* Select w/ATN */
+#define ESP_CMD_SELAS 0x43 /* Select w/ATN & STOP */
+#define ESP_CMD_ESEL 0x44 /* Enable selection */
+#define ESP_CMD_DSEL 0x45 /* Disable selections */
+#define ESP_CMD_SA3 0x46 /* Select w/ATN3 */
+#define ESP_CMD_RSEL3 0x47 /* Reselect3 */
+
+/* This bit enables the ESP's DMA on the SBus */
+#define ESP_CMD_DMA 0x80 /* Do DMA? */
+
+/* ESP status register read-only */
+#define ESP_STAT_PIO 0x01 /* IO phase bit */
+#define ESP_STAT_PCD 0x02 /* CD phase bit */
+#define ESP_STAT_PMSG 0x04 /* MSG phase bit */
+#define ESP_STAT_PMASK 0x07 /* Mask of phase bits */
+#define ESP_STAT_TDONE 0x08 /* Transfer Completed */
+#define ESP_STAT_TCNT 0x10 /* Transfer Counter Is Zero */
+#define ESP_STAT_PERR 0x20 /* Parity error */
+#define ESP_STAT_SPAM 0x40 /* Real bad error */
+/* This indicates the 'interrupt pending' condition on esp236, it is a reserved
+ * bit on other revs of the ESP.
+ */
+#define ESP_STAT_INTR 0x80 /* Interrupt */
+
+/* The status register can be masked with ESP_STAT_PMASK and compared
+ * with the following values to determine the current phase the ESP
+ * (at least thinks it) is in. For our purposes we also add our own
+ * software 'done' bit for our phase management engine.
+ */
+#define ESP_DOP (0) /* Data Out */
+#define ESP_DIP (ESP_STAT_PIO) /* Data In */
+#define ESP_CMDP (ESP_STAT_PCD) /* Command */
+#define ESP_STATP (ESP_STAT_PCD|ESP_STAT_PIO) /* Status */
+#define ESP_MOP (ESP_STAT_PMSG|ESP_STAT_PCD) /* Message Out */
+#define ESP_MIP (ESP_STAT_PMSG|ESP_STAT_PCD|ESP_STAT_PIO) /* Message In */
+
+/* HME only: status 2 register */
+#define ESP_STAT2_SCHBIT 0x01 /* Upper bits 3-7 of sstep enabled */
+#define ESP_STAT2_FFLAGS 0x02 /* The fifo flags are now latched */
+#define ESP_STAT2_XCNT 0x04 /* The transfer counter is latched */
+#define ESP_STAT2_CREGA 0x08 /* The command reg is active now */
+#define ESP_STAT2_WIDE 0x10 /* Interface on this adapter is wide */
+#define ESP_STAT2_F1BYTE 0x20 /* There is one byte at top of fifo */
+#define ESP_STAT2_FMSB 0x40 /* Next byte in fifo is most significant */
+#define ESP_STAT2_FEMPTY 0x80 /* FIFO is empty */
+
+/* ESP interrupt register read-only */
+#define ESP_INTR_S 0x01 /* Select w/o ATN */
+#define ESP_INTR_SATN 0x02 /* Select w/ATN */
+#define ESP_INTR_RSEL 0x04 /* Reselected */
+#define ESP_INTR_FDONE 0x08 /* Function done */
+#define ESP_INTR_BSERV 0x10 /* Bus service */
+#define ESP_INTR_DC 0x20 /* Disconnect */
+#define ESP_INTR_IC 0x40 /* Illegal command given */
+#define ESP_INTR_SR 0x80 /* SCSI bus reset detected */
+
+/* ESP sequence step register read-only */
+#define ESP_STEP_VBITS 0x07 /* Valid bits */
+#define ESP_STEP_ASEL 0x00 /* Selection&Arbitrate cmplt */
+#define ESP_STEP_SID 0x01 /* One msg byte sent */
+#define ESP_STEP_NCMD 0x02 /* Was not in command phase */
+#define ESP_STEP_PPC 0x03 /* Early phase chg caused cmnd
+ * bytes to be lost
+ */
+#define ESP_STEP_FINI4 0x04 /* Command was sent ok */
+
+/* Ho hum, some ESP's set the step register to this as well... */
+#define ESP_STEP_FINI5 0x05
+#define ESP_STEP_FINI6 0x06
+#define ESP_STEP_FINI7 0x07
+
+/* ESP chip-test register read-write */
+#define ESP_TEST_TARG 0x01 /* Target test mode */
+#define ESP_TEST_INI 0x02 /* Initiator test mode */
+#define ESP_TEST_TS 0x04 /* Tristate test mode */
+
+/* ESP unique ID register read-only, found on fas236+fas100a only */
+#define ESP_UID_F100A 0x00 /* ESP FAS100A */
+#define ESP_UID_F236 0x02 /* ESP FAS236 */
+#define ESP_UID_REV 0x07 /* ESP revision */
+#define ESP_UID_FAM 0xf8 /* ESP family */
+
+/* ESP fifo flags register read-only */
+/* Note that the following implies a 16 byte FIFO on the ESP. */
+#define ESP_FF_FBYTES 0x1f /* Num bytes in FIFO */
+#define ESP_FF_ONOTZERO 0x20 /* offset ctr not zero (esp100) */
+#define ESP_FF_SSTEP 0xe0 /* Sequence step */
+
+/* ESP clock conversion factor register write-only */
+#define ESP_CCF_F0 0x00 /* 35.01MHz - 40MHz */
+#define ESP_CCF_NEVER 0x01 /* Set it to this and die */
+#define ESP_CCF_F2 0x02 /* 10MHz */
+#define ESP_CCF_F3 0x03 /* 10.01MHz - 15MHz */
+#define ESP_CCF_F4 0x04 /* 15.01MHz - 20MHz */
+#define ESP_CCF_F5 0x05 /* 20.01MHz - 25MHz */
+#define ESP_CCF_F6 0x06 /* 25.01MHz - 30MHz */
+#define ESP_CCF_F7 0x07 /* 30.01MHz - 35MHz */
+
+/* HME only... */
+#define ESP_BUSID_RESELID 0x10
+#define ESP_BUSID_CTR32BIT 0x40
+
+#define ESP_BUS_TIMEOUT 250 /* In milli-seconds */
+#define ESP_TIMEO_CONST 8192
+#define ESP_NEG_DEFP(mhz, cfact) \
+ ((ESP_BUS_TIMEOUT * ((mhz) / 1000)) / (8192 * (cfact)))
+#define ESP_MHZ_TO_CYCLE(mhertz) ((1000000000) / ((mhertz) / 1000))
+#define ESP_TICK(ccf, cycle) ((7682 * (ccf) * (cycle) / 1000))
+
+/* For slow to medium speed input clock rates we shoot for 5mb/s, but for high
+ * input clock rates we try to do 10mb/s although I don't think a transfer can
+ * even run that fast with an ESP even with DMA2 scatter gather pipelining.
+ */
+#define SYNC_DEFP_SLOW 0x32 /* 5mb/s */
+#define SYNC_DEFP_FAST 0x19 /* 10mb/s */
+
+struct esp_cmd_priv {
+ union {
+ dma_addr_t dma_addr;
+ int num_sg;
+ } u;
+
+ unsigned int cur_residue;
+ struct scatterlist *cur_sg;
+ unsigned int tot_residue;
+};
+#define ESP_CMD_PRIV(CMD) ((struct esp_cmd_priv *)(&(CMD)->SCp))
+
+enum esp_rev {
+ ESP100 = 0x00, /* NCR53C90 - very broken */
+ ESP100A = 0x01, /* NCR53C90A */
+ ESP236 = 0x02,
+ FAS236 = 0x03,
+ FAS100A = 0x04,
+ FAST = 0x05,
+ FASHME = 0x06,
+};
+
+struct esp_cmd_entry {
+ struct list_head list;
+
+ struct scsi_cmnd *cmd;
+
+ unsigned int saved_cur_residue;
+ struct scatterlist *saved_cur_sg;
+ unsigned int saved_tot_residue;
+
+ u8 flags;
+#define ESP_CMD_FLAG_WRITE 0x01 /* DMA is a write */
+#define ESP_CMD_FLAG_ABORT 0x02 /* being aborted */
+#define ESP_CMD_FLAG_AUTOSENSE 0x04 /* Doing automatic REQUEST_SENSE */
+
+ u8 tag[2];
+
+ u8 status;
+ u8 message;
+
+ unsigned char *sense_ptr;
+ unsigned char *saved_sense_ptr;
+ dma_addr_t sense_dma;
+
+ struct completion *eh_done;
+};
+
+/* XXX make this configurable somehow XXX */
+#define ESP_DEFAULT_TAGS 16
+
+#define ESP_MAX_TARGET 16
+#define ESP_MAX_LUN 8
+#define ESP_MAX_TAG 256
+
+struct esp_lun_data {
+ struct esp_cmd_entry *non_tagged_cmd;
+ int num_tagged;
+ int hold;
+ struct esp_cmd_entry *tagged_cmds[ESP_MAX_TAG];
+};
+
+struct esp_target_data {
+ /* These are the ESP_STP, ESP_SOFF, and ESP_CFG3 register values which
+ * match the currently negotiated settings for this target. The SCSI
+ * protocol values are maintained in spi_{offset,period,wide}(starget).
+ */
+ u8 esp_period;
+ u8 esp_offset;
+ u8 esp_config3;
+
+ u8 flags;
+#define ESP_TGT_WIDE 0x01
+#define ESP_TGT_DISCONNECT 0x02
+#define ESP_TGT_NEGO_WIDE 0x04
+#define ESP_TGT_NEGO_SYNC 0x08
+#define ESP_TGT_CHECK_NEGO 0x40
+#define ESP_TGT_BROKEN 0x80
+
+ /* When ESP_TGT_CHECK_NEGO is set, on the next scsi command to this
+ * device we will try to negotiate the following parameters.
+ */
+ u8 nego_goal_period;
+ u8 nego_goal_offset;
+ u8 nego_goal_width;
+ u8 nego_goal_tags;
+
+ struct scsi_target *starget;
+};
+
+struct esp_event_ent {
+ u8 type;
+#define ESP_EVENT_TYPE_EVENT 0x01
+#define ESP_EVENT_TYPE_CMD 0x02
+ u8 val;
+
+ u8 sreg;
+ u8 seqreg;
+ u8 sreg2;
+ u8 ireg;
+ u8 select_state;
+ u8 event;
+ u8 __pad;
+};
+
+struct esp;
+struct esp_driver_ops {
+ /* Read and write the ESP 8-bit registers. On some
+ * applications of the ESP chip the registers are at 4-byte
+ * instead of 1-byte intervals.
+ */
+ void (*esp_write8)(struct esp *esp, u8 val, unsigned long reg);
+ u8 (*esp_read8)(struct esp *esp, unsigned long reg);
+
+ /* Map and unmap DMA memory. Eventually the driver will be
+ * converted to the generic DMA API as soon as SBUS is able to
+ * cope with that. At such time we can remove this.
+ */
+ dma_addr_t (*map_single)(struct esp *esp, void *buf,
+ size_t sz, int dir);
+ int (*map_sg)(struct esp *esp, struct scatterlist *sg,
+ int num_sg, int dir);
+ void (*unmap_single)(struct esp *esp, dma_addr_t addr,
+ size_t sz, int dir);
+ void (*unmap_sg)(struct esp *esp, struct scatterlist *sg,
+ int num_sg, int dir);
+
+ /* Return non-zero if there is an IRQ pending. Usually this
+ * status bit lives in the DMA controller sitting in front of
+ * the ESP. This has to be accurate or else the ESP interrupt
+ * handler will not run.
+ */
+ int (*irq_pending)(struct esp *esp);
+
+ /* Reset the DMA engine entirely. On return, ESP interrupts
+ * should be enabled. Often the interrupt enabling is
+ * controlled in the DMA engine.
+ */
+ void (*reset_dma)(struct esp *esp);
+
+ /* Drain any pending DMA in the DMA engine after a transfer.
+ * This is for writes to memory.
+ */
+ void (*dma_drain)(struct esp *esp);
+
+ /* Invalidate the DMA engine after a DMA transfer. */
+ void (*dma_invalidate)(struct esp *esp);
+
+ /* Setup an ESP command that will use a DMA transfer.
+ * The 'esp_count' specifies what transfer length should be
+ * programmed into the ESP transfer counter registers, whereas
+ * the 'dma_count' is the length that should be programmed into
+ * the DMA controller. Usually they are the same. If 'write'
+ * is non-zero, this transfer is a write into memory. 'cmd'
+ * holds the ESP command that should be issued by calling
+ * scsi_esp_cmd() at the appropriate time while programming
+ * the DMA hardware.
+ */
+ void (*send_dma_cmd)(struct esp *esp, u32 dma_addr, u32 esp_count,
+ u32 dma_count, int write, u8 cmd);
+
+ /* Return non-zero if the DMA engine is reporting an error
+ * currently.
+ */
+ int (*dma_error)(struct esp *esp);
+};
+
+#define ESP_MAX_MSG_SZ 8
+#define ESP_EVENT_LOG_SZ 32
+
+#define ESP_QUICKIRQ_LIMIT 100
+#define ESP_RESELECT_TAG_LIMIT 2500
+
+struct esp {
+ void __iomem *regs;
+ void __iomem *dma_regs;
+
+ const struct esp_driver_ops *ops;
+
+ struct Scsi_Host *host;
+ void *dev;
+
+ struct esp_cmd_entry *active_cmd;
+
+ struct list_head queued_cmds;
+ struct list_head active_cmds;
+
+ u8 *command_block;
+ dma_addr_t command_block_dma;
+
+ unsigned int data_dma_len;
+
+ /* The following are used to determine the cause of an IRQ. Upon every
+ * IRQ entry we synchronize these with the hardware registers.
+ */
+ u8 sreg;
+ u8 seqreg;
+ u8 sreg2;
+ u8 ireg;
+
+ u32 prev_hme_dmacsr;
+ u8 prev_soff;
+ u8 prev_stp;
+ u8 prev_cfg3;
+ u8 __pad;
+
+ struct list_head esp_cmd_pool;
+
+ struct esp_target_data target[ESP_MAX_TARGET];
+
+ int fifo_cnt;
+ u8 fifo[16];
+
+ struct esp_event_ent esp_event_log[ESP_EVENT_LOG_SZ];
+ int esp_event_cur;
+
+ u8 msg_out[ESP_MAX_MSG_SZ];
+ int msg_out_len;
+
+ u8 msg_in[ESP_MAX_MSG_SZ];
+ int msg_in_len;
+
+ u8 bursts;
+ u8 config1;
+ u8 config2;
+
+ u8 scsi_id;
+ u32 scsi_id_mask;
+
+ enum esp_rev rev;
+
+ u32 flags;
+#define ESP_FLAG_DIFFERENTIAL 0x00000001
+#define ESP_FLAG_RESETTING 0x00000002
+#define ESP_FLAG_DOING_SLOWCMD 0x00000004
+#define ESP_FLAG_WIDE_CAPABLE 0x00000008
+#define ESP_FLAG_QUICKIRQ_CHECK 0x00000010
+
+ u8 select_state;
+#define ESP_SELECT_NONE 0x00 /* Not selecting */
+#define ESP_SELECT_BASIC 0x01 /* Select w/o MSGOUT phase */
+#define ESP_SELECT_MSGOUT 0x02 /* Select with MSGOUT */
+
+ /* When we are not selecting, we are expecting an event. */
+ u8 event;
+#define ESP_EVENT_NONE 0x00
+#define ESP_EVENT_CMD_START 0x01
+#define ESP_EVENT_CMD_DONE 0x02
+#define ESP_EVENT_DATA_IN 0x03
+#define ESP_EVENT_DATA_OUT 0x04
+#define ESP_EVENT_DATA_DONE 0x05
+#define ESP_EVENT_MSGIN 0x06
+#define ESP_EVENT_MSGIN_MORE 0x07
+#define ESP_EVENT_MSGIN_DONE 0x08
+#define ESP_EVENT_MSGOUT 0x09
+#define ESP_EVENT_MSGOUT_DONE 0x0a
+#define ESP_EVENT_STATUS 0x0b
+#define ESP_EVENT_FREE_BUS 0x0c
+#define ESP_EVENT_CHECK_PHASE 0x0d
+#define ESP_EVENT_RESET 0x10
+
+ /* Probed in esp_get_clock_params() */
+ u32 cfact;
+ u32 cfreq;
+ u32 ccycle;
+ u32 ctick;
+ u32 neg_defp;
+ u32 sync_defp;
+
+ /* Computed in esp_reset_esp() */
+ u32 max_period;
+ u32 min_period;
+ u32 radelay;
+
+ /* Slow command state. */
+ u8 *cmd_bytes_ptr;
+ int cmd_bytes_left;
+
+ struct completion *eh_reset;
+
+ struct sbus_dma *dma;
+};
+
+#define host_to_esp(host) ((struct esp *)(host)->hostdata)
+
+/* A front-end driver for the ESP chip should do the following in
+ * it's device probe routine:
+ * 1) Allocate the host and private area using scsi_host_alloc()
+ * with size 'sizeof(struct esp)'. The first argument to
+ * scsi_host_alloc() should be &scsi_esp_template.
+ * 2) Set host->max_id as appropriate.
+ * 3) Set esp->host to the scsi_host itself, and esp->dev
+ * to the device object pointer.
+ * 4) Hook up esp->ops to the front-end implementation.
+ * 5) If the ESP chip supports wide transfers, set ESP_FLAG_WIDE_CAPABLE
+ * in esp->flags.
+ * 6) Map the DMA and ESP chip registers.
+ * 7) DMA map the ESP command block, store the DMA address
+ * in esp->command_block_dma.
+ * 8) Register the scsi_esp_intr() interrupt handler.
+ * 9) Probe for and provide the following chip properties:
+ * esp->scsi_id (assign to esp->host->this_id too)
+ * esp->scsi_id_mask
+ * If ESP bus is differential, set ESP_FLAG_DIFFERENTIAL
+ * esp->cfreq
+ * DMA burst bit mask in esp->bursts, if necessary
+ * 10) Perform any actions necessary before the ESP device can
+ * be programmed for the first time. On some configs, for
+ * example, the DMA engine has to be reset before ESP can
+ * be programmed.
+ * 11) If necessary, call dev_set_drvdata() as needed.
+ * 12) Call scsi_esp_register() with prepared 'esp' structure
+ * and a device pointer if possible.
+ * 13) Check scsi_esp_register() return value, release all resources
+ * if an error was returned.
+ */
+extern struct scsi_host_template scsi_esp_template;
+extern int scsi_esp_register(struct esp *, struct device *);
+
+extern void scsi_esp_unregister(struct esp *);
+extern irqreturn_t scsi_esp_intr(int, void *);
+extern void scsi_esp_cmd(struct esp *, u8);
+
+#endif /* !(_ESP_SCSI_H) */
struct scsi_host_template *tpnt = match->data;
struct Scsi_Host *host;
struct qlogicpti *qpti;
- char *fcode;
+ const char *fcode;
/* Sometimes Antares cards come up not completely
* setup, and we get a report of a zero IRQ.
while (skb->len >= NLMSG_SPACE(0)) {
err = 0;
- nlh = (struct nlmsghdr *) skb->data;
+ nlh = nlmsg_hdr(skb);
if ((nlh->nlmsg_len < (sizeof(*nlh) + sizeof(*hdr))) ||
(skb->len < nlh->nlmsg_len)) {
printk(KERN_WARNING "%s: discarding partial skb\n",
}
scsi_nl_sock = netlink_kernel_create(NETLINK_SCSITRANSPORT,
- SCSI_NL_GRP_CNT, scsi_nl_rcv, THIS_MODULE);
+ SCSI_NL_GRP_CNT, scsi_nl_rcv, NULL,
+ THIS_MODULE);
if (!scsi_nl_sock) {
printk(KERN_ERR "%s: register of recieve handler failed\n",
__FUNCTION__);
struct nlmsghdr *nlh;
struct iscsi_uevent *ev;
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) ||
skb->len < nlh->nlmsg_len) {
break;
if (err)
goto unregister_conn_class;
- nls = netlink_kernel_create(NETLINK_ISCSI, 1, iscsi_if_rx,
+ nls = netlink_kernel_create(NETLINK_ISCSI, 1, iscsi_if_rx, NULL,
THIS_MODULE);
if (!nls) {
err = -ENOBUFS;
--- /dev/null
+/* sun_esp.c: ESP front-end for Sparc SBUS systems.
+ *
+ * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#include <asm/sbus.h>
+
+#include <scsi/scsi_host.h>
+
+#include "esp_scsi.h"
+
+#define DRV_MODULE_NAME "sun_esp"
+#define PFX DRV_MODULE_NAME ": "
+#define DRV_VERSION "1.000"
+#define DRV_MODULE_RELDATE "April 19, 2007"
+
+#define dma_read32(REG) \
+ sbus_readl(esp->dma_regs + (REG))
+#define dma_write32(VAL, REG) \
+ sbus_writel((VAL), esp->dma_regs + (REG))
+
+static int __devinit esp_sbus_find_dma(struct esp *esp, struct sbus_dev *dma_sdev)
+{
+ struct sbus_dev *sdev = esp->dev;
+ struct sbus_dma *dma;
+
+ if (dma_sdev != NULL) {
+ for_each_dvma(dma) {
+ if (dma->sdev == dma_sdev)
+ break;
+ }
+ } else {
+ for_each_dvma(dma) {
+ if (dma->sdev == NULL)
+ break;
+
+ /* If bus + slot are the same and it has the
+ * correct OBP name, it's ours.
+ */
+ if (sdev->bus == dma->sdev->bus &&
+ sdev->slot == dma->sdev->slot &&
+ (!strcmp(dma->sdev->prom_name, "dma") ||
+ !strcmp(dma->sdev->prom_name, "espdma")))
+ break;
+ }
+ }
+
+ if (dma == NULL) {
+ printk(KERN_ERR PFX "[%s] Cannot find dma.\n",
+ sdev->ofdev.node->full_name);
+ return -ENODEV;
+ }
+ esp->dma = dma;
+ esp->dma_regs = dma->regs;
+
+ return 0;
+
+}
+
+static int __devinit esp_sbus_map_regs(struct esp *esp, int hme)
+{
+ struct sbus_dev *sdev = esp->dev;
+ struct resource *res;
+
+ /* On HME, two reg sets exist, first is DVMA,
+ * second is ESP registers.
+ */
+ if (hme)
+ res = &sdev->resource[1];
+ else
+ res = &sdev->resource[0];
+
+ esp->regs = sbus_ioremap(res, 0, SBUS_ESP_REG_SIZE, "ESP");
+ if (!esp->regs)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int __devinit esp_sbus_map_command_block(struct esp *esp)
+{
+ struct sbus_dev *sdev = esp->dev;
+
+ esp->command_block = sbus_alloc_consistent(sdev, 16,
+ &esp->command_block_dma);
+ if (!esp->command_block)
+ return -ENOMEM;
+ return 0;
+}
+
+static int __devinit esp_sbus_register_irq(struct esp *esp)
+{
+ struct Scsi_Host *host = esp->host;
+ struct sbus_dev *sdev = esp->dev;
+
+ host->irq = sdev->irqs[0];
+ return request_irq(host->irq, scsi_esp_intr, IRQF_SHARED, "ESP", esp);
+}
+
+static void __devinit esp_get_scsi_id(struct esp *esp)
+{
+ struct sbus_dev *sdev = esp->dev;
+ struct device_node *dp = sdev->ofdev.node;
+
+ esp->scsi_id = of_getintprop_default(dp, "initiator-id", 0xff);
+ if (esp->scsi_id != 0xff)
+ goto done;
+
+ esp->scsi_id = of_getintprop_default(dp, "scsi-initiator-id", 0xff);
+ if (esp->scsi_id != 0xff)
+ goto done;
+
+ if (!sdev->bus) {
+ /* SUN4 */
+ esp->scsi_id = 7;
+ goto done;
+ }
+
+ esp->scsi_id = of_getintprop_default(sdev->bus->ofdev.node,
+ "scsi-initiator-id", 7);
+
+done:
+ esp->host->this_id = esp->scsi_id;
+ esp->scsi_id_mask = (1 << esp->scsi_id);
+}
+
+static void __devinit esp_get_differential(struct esp *esp)
+{
+ struct sbus_dev *sdev = esp->dev;
+ struct device_node *dp = sdev->ofdev.node;
+
+ if (of_find_property(dp, "differential", NULL))
+ esp->flags |= ESP_FLAG_DIFFERENTIAL;
+ else
+ esp->flags &= ~ESP_FLAG_DIFFERENTIAL;
+}
+
+static void __devinit esp_get_clock_params(struct esp *esp)
+{
+ struct sbus_dev *sdev = esp->dev;
+ struct device_node *dp = sdev->ofdev.node;
+ struct device_node *bus_dp;
+ int fmhz;
+
+ bus_dp = NULL;
+ if (sdev != NULL && sdev->bus != NULL)
+ bus_dp = sdev->bus->ofdev.node;
+
+ fmhz = of_getintprop_default(dp, "clock-frequency", 0);
+ if (fmhz == 0)
+ fmhz = (!bus_dp) ? 0 :
+ of_getintprop_default(bus_dp, "clock-frequency", 0);
+
+ esp->cfreq = fmhz;
+}
+
+static void __devinit esp_get_bursts(struct esp *esp, struct sbus_dev *dma)
+{
+ struct sbus_dev *sdev = esp->dev;
+ struct device_node *dp = sdev->ofdev.node;
+ u8 bursts;
+
+ bursts = of_getintprop_default(dp, "burst-sizes", 0xff);
+ if (dma) {
+ struct device_node *dma_dp = dma->ofdev.node;
+ u8 val = of_getintprop_default(dma_dp, "burst-sizes", 0xff);
+ if (val != 0xff)
+ bursts &= val;
+ }
+
+ if (sdev->bus) {
+ u8 val = of_getintprop_default(sdev->bus->ofdev.node,
+ "burst-sizes", 0xff);
+ if (val != 0xff)
+ bursts &= val;
+ }
+
+ if (bursts == 0xff ||
+ (bursts & DMA_BURST16) == 0 ||
+ (bursts & DMA_BURST32) == 0)
+ bursts = (DMA_BURST32 - 1);
+
+ esp->bursts = bursts;
+}
+
+static void __devinit esp_sbus_get_props(struct esp *esp, struct sbus_dev *espdma)
+{
+ esp_get_scsi_id(esp);
+ esp_get_differential(esp);
+ esp_get_clock_params(esp);
+ esp_get_bursts(esp, espdma);
+}
+
+static void sbus_esp_write8(struct esp *esp, u8 val, unsigned long reg)
+{
+ sbus_writeb(val, esp->regs + (reg * 4UL));
+}
+
+static u8 sbus_esp_read8(struct esp *esp, unsigned long reg)
+{
+ return sbus_readb(esp->regs + (reg * 4UL));
+}
+
+static dma_addr_t sbus_esp_map_single(struct esp *esp, void *buf,
+ size_t sz, int dir)
+{
+ return sbus_map_single(esp->dev, buf, sz, dir);
+}
+
+static int sbus_esp_map_sg(struct esp *esp, struct scatterlist *sg,
+ int num_sg, int dir)
+{
+ return sbus_map_sg(esp->dev, sg, num_sg, dir);
+}
+
+static void sbus_esp_unmap_single(struct esp *esp, dma_addr_t addr,
+ size_t sz, int dir)
+{
+ sbus_unmap_single(esp->dev, addr, sz, dir);
+}
+
+static void sbus_esp_unmap_sg(struct esp *esp, struct scatterlist *sg,
+ int num_sg, int dir)
+{
+ sbus_unmap_sg(esp->dev, sg, num_sg, dir);
+}
+
+static int sbus_esp_irq_pending(struct esp *esp)
+{
+ if (dma_read32(DMA_CSR) & (DMA_HNDL_INTR | DMA_HNDL_ERROR))
+ return 1;
+ return 0;
+}
+
+static void sbus_esp_reset_dma(struct esp *esp)
+{
+ int can_do_burst16, can_do_burst32, can_do_burst64;
+ int can_do_sbus64, lim;
+ u32 val;
+
+ can_do_burst16 = (esp->bursts & DMA_BURST16) != 0;
+ can_do_burst32 = (esp->bursts & DMA_BURST32) != 0;
+ can_do_burst64 = 0;
+ can_do_sbus64 = 0;
+ if (sbus_can_dma_64bit(esp->dev))
+ can_do_sbus64 = 1;
+ if (sbus_can_burst64(esp->sdev))
+ can_do_burst64 = (esp->bursts & DMA_BURST64) != 0;
+
+ /* Put the DVMA into a known state. */
+ if (esp->dma->revision != dvmahme) {
+ val = dma_read32(DMA_CSR);
+ dma_write32(val | DMA_RST_SCSI, DMA_CSR);
+ dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
+ }
+ switch (esp->dma->revision) {
+ case dvmahme:
+ dma_write32(DMA_RESET_FAS366, DMA_CSR);
+ dma_write32(DMA_RST_SCSI, DMA_CSR);
+
+ esp->prev_hme_dmacsr = (DMA_PARITY_OFF | DMA_2CLKS |
+ DMA_SCSI_DISAB | DMA_INT_ENAB);
+
+ esp->prev_hme_dmacsr &= ~(DMA_ENABLE | DMA_ST_WRITE |
+ DMA_BRST_SZ);
+
+ if (can_do_burst64)
+ esp->prev_hme_dmacsr |= DMA_BRST64;
+ else if (can_do_burst32)
+ esp->prev_hme_dmacsr |= DMA_BRST32;
+
+ if (can_do_sbus64) {
+ esp->prev_hme_dmacsr |= DMA_SCSI_SBUS64;
+ sbus_set_sbus64(esp->dev, esp->bursts);
+ }
+
+ lim = 1000;
+ while (dma_read32(DMA_CSR) & DMA_PEND_READ) {
+ if (--lim == 0) {
+ printk(KERN_ALERT PFX "esp%d: DMA_PEND_READ "
+ "will not clear!\n",
+ esp->host->unique_id);
+ break;
+ }
+ udelay(1);
+ }
+
+ dma_write32(0, DMA_CSR);
+ dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
+
+ dma_write32(0, DMA_ADDR);
+ break;
+
+ case dvmarev2:
+ if (esp->rev != ESP100) {
+ val = dma_read32(DMA_CSR);
+ dma_write32(val | DMA_3CLKS, DMA_CSR);
+ }
+ break;
+
+ case dvmarev3:
+ val = dma_read32(DMA_CSR);
+ val &= ~DMA_3CLKS;
+ val |= DMA_2CLKS;
+ if (can_do_burst32) {
+ val &= ~DMA_BRST_SZ;
+ val |= DMA_BRST32;
+ }
+ dma_write32(val, DMA_CSR);
+ break;
+
+ case dvmaesc1:
+ val = dma_read32(DMA_CSR);
+ val |= DMA_ADD_ENABLE;
+ val &= ~DMA_BCNT_ENAB;
+ if (!can_do_burst32 && can_do_burst16) {
+ val |= DMA_ESC_BURST;
+ } else {
+ val &= ~(DMA_ESC_BURST);
+ }
+ dma_write32(val, DMA_CSR);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Enable interrupts. */
+ val = dma_read32(DMA_CSR);
+ dma_write32(val | DMA_INT_ENAB, DMA_CSR);
+}
+
+static void sbus_esp_dma_drain(struct esp *esp)
+{
+ u32 csr;
+ int lim;
+
+ if (esp->dma->revision == dvmahme)
+ return;
+
+ csr = dma_read32(DMA_CSR);
+ if (!(csr & DMA_FIFO_ISDRAIN))
+ return;
+
+ if (esp->dma->revision != dvmarev3 && esp->dma->revision != dvmaesc1)
+ dma_write32(csr | DMA_FIFO_STDRAIN, DMA_CSR);
+
+ lim = 1000;
+ while (dma_read32(DMA_CSR) & DMA_FIFO_ISDRAIN) {
+ if (--lim == 0) {
+ printk(KERN_ALERT PFX "esp%d: DMA will not drain!\n",
+ esp->host->unique_id);
+ break;
+ }
+ udelay(1);
+ }
+}
+
+static void sbus_esp_dma_invalidate(struct esp *esp)
+{
+ if (esp->dma->revision == dvmahme) {
+ dma_write32(DMA_RST_SCSI, DMA_CSR);
+
+ esp->prev_hme_dmacsr = ((esp->prev_hme_dmacsr |
+ (DMA_PARITY_OFF | DMA_2CLKS |
+ DMA_SCSI_DISAB | DMA_INT_ENAB)) &
+ ~(DMA_ST_WRITE | DMA_ENABLE));
+
+ dma_write32(0, DMA_CSR);
+ dma_write32(esp->prev_hme_dmacsr, DMA_CSR);
+
+ /* This is necessary to avoid having the SCSI channel
+ * engine lock up on us.
+ */
+ dma_write32(0, DMA_ADDR);
+ } else {
+ u32 val;
+ int lim;
+
+ lim = 1000;
+ while ((val = dma_read32(DMA_CSR)) & DMA_PEND_READ) {
+ if (--lim == 0) {
+ printk(KERN_ALERT PFX "esp%d: DMA will not "
+ "invalidate!\n", esp->host->unique_id);
+ break;
+ }
+ udelay(1);
+ }
+
+ val &= ~(DMA_ENABLE | DMA_ST_WRITE | DMA_BCNT_ENAB);
+ val |= DMA_FIFO_INV;
+ dma_write32(val, DMA_CSR);
+ val &= ~DMA_FIFO_INV;
+ dma_write32(val, DMA_CSR);
+ }
+}
+
+static void sbus_esp_send_dma_cmd(struct esp *esp, u32 addr, u32 esp_count,
+ u32 dma_count, int write, u8 cmd)
+{
+ u32 csr;
+
+ BUG_ON(!(cmd & ESP_CMD_DMA));
+
+ sbus_esp_write8(esp, (esp_count >> 0) & 0xff, ESP_TCLOW);
+ sbus_esp_write8(esp, (esp_count >> 8) & 0xff, ESP_TCMED);
+ if (esp->rev == FASHME) {
+ sbus_esp_write8(esp, (esp_count >> 16) & 0xff, FAS_RLO);
+ sbus_esp_write8(esp, 0, FAS_RHI);
+
+ scsi_esp_cmd(esp, cmd);
+
+ csr = esp->prev_hme_dmacsr;
+ csr |= DMA_SCSI_DISAB | DMA_ENABLE;
+ if (write)
+ csr |= DMA_ST_WRITE;
+ else
+ csr &= ~DMA_ST_WRITE;
+ esp->prev_hme_dmacsr = csr;
+
+ dma_write32(dma_count, DMA_COUNT);
+ dma_write32(addr, DMA_ADDR);
+ dma_write32(csr, DMA_CSR);
+ } else {
+ csr = dma_read32(DMA_CSR);
+ csr |= DMA_ENABLE;
+ if (write)
+ csr |= DMA_ST_WRITE;
+ else
+ csr &= ~DMA_ST_WRITE;
+ dma_write32(csr, DMA_CSR);
+ if (esp->dma->revision == dvmaesc1) {
+ u32 end = PAGE_ALIGN(addr + dma_count + 16U);
+ dma_write32(end - addr, DMA_COUNT);
+ }
+ dma_write32(addr, DMA_ADDR);
+
+ scsi_esp_cmd(esp, cmd);
+ }
+
+}
+
+static int sbus_esp_dma_error(struct esp *esp)
+{
+ u32 csr = dma_read32(DMA_CSR);
+
+ if (csr & DMA_HNDL_ERROR)
+ return 1;
+
+ return 0;
+}
+
+static const struct esp_driver_ops sbus_esp_ops = {
+ .esp_write8 = sbus_esp_write8,
+ .esp_read8 = sbus_esp_read8,
+ .map_single = sbus_esp_map_single,
+ .map_sg = sbus_esp_map_sg,
+ .unmap_single = sbus_esp_unmap_single,
+ .unmap_sg = sbus_esp_unmap_sg,
+ .irq_pending = sbus_esp_irq_pending,
+ .reset_dma = sbus_esp_reset_dma,
+ .dma_drain = sbus_esp_dma_drain,
+ .dma_invalidate = sbus_esp_dma_invalidate,
+ .send_dma_cmd = sbus_esp_send_dma_cmd,
+ .dma_error = sbus_esp_dma_error,
+};
+
+static int __devinit esp_sbus_probe_one(struct device *dev,
+ struct sbus_dev *esp_dev,
+ struct sbus_dev *espdma,
+ struct sbus_bus *sbus,
+ int hme)
+{
+ struct scsi_host_template *tpnt = &scsi_esp_template;
+ struct Scsi_Host *host;
+ struct esp *esp;
+ int err;
+
+ host = scsi_host_alloc(tpnt, sizeof(struct esp));
+
+ err = -ENOMEM;
+ if (!host)
+ goto fail;
+
+ host->max_id = (hme ? 16 : 8);
+ esp = host_to_esp(host);
+
+ esp->host = host;
+ esp->dev = esp_dev;
+ esp->ops = &sbus_esp_ops;
+
+ if (hme)
+ esp->flags |= ESP_FLAG_WIDE_CAPABLE;
+
+ err = esp_sbus_find_dma(esp, espdma);
+ if (err < 0)
+ goto fail_unlink;
+
+ err = esp_sbus_map_regs(esp, hme);
+ if (err < 0)
+ goto fail_unlink;
+
+ err = esp_sbus_map_command_block(esp);
+ if (err < 0)
+ goto fail_unmap_regs;
+
+ err = esp_sbus_register_irq(esp);
+ if (err < 0)
+ goto fail_unmap_command_block;
+
+ esp_sbus_get_props(esp, espdma);
+
+ /* Before we try to touch the ESP chip, ESC1 dma can
+ * come up with the reset bit set, so make sure that
+ * is clear first.
+ */
+ if (esp->dma->revision == dvmaesc1) {
+ u32 val = dma_read32(DMA_CSR);
+
+ dma_write32(val & ~DMA_RST_SCSI, DMA_CSR);
+ }
+
+ dev_set_drvdata(&esp_dev->ofdev.dev, esp);
+
+ err = scsi_esp_register(esp, dev);
+ if (err)
+ goto fail_free_irq;
+
+ return 0;
+
+fail_free_irq:
+ free_irq(host->irq, esp);
+fail_unmap_command_block:
+ sbus_free_consistent(esp->dev, 16,
+ esp->command_block,
+ esp->command_block_dma);
+fail_unmap_regs:
+ sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
+fail_unlink:
+ scsi_host_put(host);
+fail:
+ return err;
+}
+
+static int __devinit esp_sbus_probe(struct of_device *dev, const struct of_device_id *match)
+{
+ struct sbus_dev *sdev = to_sbus_device(&dev->dev);
+ struct device_node *dp = dev->node;
+ struct sbus_dev *dma_sdev = NULL;
+ int hme = 0;
+
+ if (dp->parent &&
+ (!strcmp(dp->parent->name, "espdma") ||
+ !strcmp(dp->parent->name, "dma")))
+ dma_sdev = sdev->parent;
+ else if (!strcmp(dp->name, "SUNW,fas")) {
+ dma_sdev = sdev;
+ hme = 1;
+ }
+
+ return esp_sbus_probe_one(&dev->dev, sdev, dma_sdev,
+ sdev->bus, hme);
+}
+
+static int __devexit esp_sbus_remove(struct of_device *dev)
+{
+ struct esp *esp = dev_get_drvdata(&dev->dev);
+ unsigned int irq = esp->host->irq;
+ u32 val;
+
+ scsi_esp_unregister(esp);
+
+ /* Disable interrupts. */
+ val = dma_read32(DMA_CSR);
+ dma_write32(val & ~DMA_INT_ENAB, DMA_CSR);
+
+ free_irq(irq, esp);
+ sbus_free_consistent(esp->dev, 16,
+ esp->command_block,
+ esp->command_block_dma);
+ sbus_iounmap(esp->regs, SBUS_ESP_REG_SIZE);
+
+ scsi_host_put(esp->host);
+
+ return 0;
+}
+
+static struct of_device_id esp_match[] = {
+ {
+ .name = "SUNW,esp",
+ },
+ {
+ .name = "SUNW,fas",
+ },
+ {
+ .name = "esp",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, esp_match);
+
+static struct of_platform_driver esp_sbus_driver = {
+ .name = "esp",
+ .match_table = esp_match,
+ .probe = esp_sbus_probe,
+ .remove = __devexit_p(esp_sbus_remove),
+};
+
+static int __init sunesp_init(void)
+{
+ return of_register_driver(&esp_sbus_driver, &sbus_bus_type);
+}
+
+static void __exit sunesp_exit(void)
+{
+ of_unregister_driver(&esp_sbus_driver);
+}
+
+MODULE_DESCRIPTION("Sun ESP SCSI driver");
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+module_init(sunesp_init);
+module_exit(sunesp_exit);
{
unsigned int status = serial_in(up, UART_MSR);
- if (status & UART_MSR_ANY_DELTA && up->ier & UART_IER_MSI) {
+ if (status & UART_MSR_ANY_DELTA && up->ier & UART_IER_MSI &&
+ up->port.info != NULL) {
if (status & UART_MSR_TERI)
up->port.icount.rng++;
if (status & UART_MSR_DDSR)
serial8250_handle_port(struct uart_8250_port *up)
{
unsigned int status;
+ unsigned long flags;
- spin_lock(&up->port.lock);
+ spin_lock_irqsave(&up->port.lock, flags);
status = serial_inp(up, UART_LSR);
if (status & UART_LSR_THRE)
transmit_chars(up);
- spin_unlock(&up->port.lock);
+ spin_unlock_irqrestore(&up->port.lock, flags);
}
/*
}
}
-static int __init get_port_memory(struct icom_port *icom_port)
+static int __devinit get_port_memory(struct icom_port *icom_port)
{
int index;
unsigned long stgAddr;
0x8024 + 2 - 2 * (icom_port->port - 2);
}
}
-static int __init icom_load_ports(struct icom_adapter *icom_adapter)
+static int __devinit icom_load_ports(struct icom_adapter *icom_adapter)
{
struct icom_port *icom_port;
int port_num;
}
}
- free_irq(icom_adapter->irq_number, (void *) icom_adapter);
+ free_irq(icom_adapter->pci_dev->irq, (void *) icom_adapter);
iounmap(icom_adapter->base_addr);
icom_free_adapter(icom_adapter);
pci_release_regions(icom_adapter->pci_dev);
}
icom_adapter->base_addr_pci = pci_resource_start(dev, 0);
- icom_adapter->irq_number = dev->irq;
icom_adapter->pci_dev = dev;
icom_adapter->version = ent->driver_data;
icom_adapter->subsystem_id = ent->subdevice;
icom_port = &icom_adapter->port_info[index];
if (icom_port->status == ICOM_PORT_ACTIVE) {
- icom_port->uart_port.irq = icom_port->adapter->irq_number;
+ icom_port->uart_port.irq = icom_port->adapter->pci_dev->irq;
icom_port->uart_port.type = PORT_ICOM;
icom_port->uart_port.iotype = UPIO_MEM;
icom_port->uart_port.membase =
struct icom_adapter {
void __iomem * base_addr;
unsigned long base_addr_pci;
- unsigned char irq_number;
struct pci_dev *pci_dev;
struct icom_port port_info[4];
int index;
struct device_node *ap = of_find_node_by_path("/aliases");
if (ap) {
- char *keyb = of_get_property(ap, "keyboard", NULL);
- char *ms = of_get_property(ap, "mouse", NULL);
+ const char *keyb = of_get_property(ap, "keyboard", NULL);
+ const char *ms = of_get_property(ap, "mouse", NULL);
if (keyb) {
if (dp == of_find_node_by_path(keyb))
UDSL_ASSERT(sarb->tail + ATM_CELL_PAYLOAD <= sarb->end);
}
- memcpy(sarb->tail, source + ATM_CELL_HEADER, ATM_CELL_PAYLOAD);
+ memcpy(skb_tail_pointer(sarb), source + ATM_CELL_HEADER, ATM_CELL_PAYLOAD);
__skb_put(sarb, ATM_CELL_PAYLOAD);
if (pti & 1) {
goto out;
}
- if (crc32_be(~0, sarb->tail - pdu_length, pdu_length) != 0xc704dd7b) {
+ if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
__func__, vcc);
atomic_inc(&vcc->stats->rx_err);
goto out; /* atm_charge increments rx_drop */
}
- memcpy(skb->data, sarb->tail - pdu_length, length);
+ skb_copy_to_linear_data(skb,
+ skb_tail_pointer(sarb) - pdu_length,
+ length);
__skb_put(skb, length);
vdbg("%s: sending skb 0x%p, skb->len %u, skb->truesize %u",
ptr[4] = 0xec;
ptr += ATM_CELL_HEADER;
- memcpy(ptr, skb->data, data_len);
+ skb_copy_from_linear_data(skb, ptr, data_len);
ptr += data_len;
__skb_pull(skb, data_len);
break;
}
- skb->dev = dev->net;
skb->protocol = eth_type_trans (skb, dev->net);
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
if (ax_skb) {
ax_skb->len = size;
ax_skb->data = packet;
- ax_skb->tail = packet + size;
+ skb_set_tail_pointer(ax_skb, size);
usbnet_skb_return(dev, ax_skb);
} else {
return 0;
&& ((headroom + tailroom) >= (4 + padlen))) {
if ((headroom < 4) || (tailroom < padlen)) {
skb->data = memmove(skb->head + 4, skb->data, skb->len);
- skb->tail = skb->data + skb->len;
+ skb_set_tail_pointer(skb, skb->len);
}
} else {
struct sk_buff *skb2;
skb_push(skb, 4);
packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
cpu_to_le32s(&packet_len);
- memcpy(skb->data, &packet_len, sizeof(packet_len));
+ skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));
if ((skb->len % 512) == 0) {
cpu_to_le32s(&padbytes);
- memcpy( skb->tail, &padbytes, sizeof(padbytes));
+ memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
skb_put(skb, sizeof(padbytes));
}
return skb;
if (!(skb = dev_alloc_skb(pkt_len)))
return;
- skb->dev = catc->netdev;
eth_copy_and_sum(skb, pkt_start + pkt_offset, pkt_len, 0);
skb_put(skb, pkt_len);
catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
*((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len);
- memcpy(tx_buf + 2, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, tx_buf + 2, skb->len);
catc->tx_ptr += skb->len + 2;
if (!test_and_set_bit(TX_RUNNING, &catc->flags))
if ((headroom < (4 + 4*1)) || (tailroom < padlen)) {
skb->data = memmove(skb->head + (4 + 4*1),
skb->data, skb->len);
- skb->tail = skb->data + skb->len;
+ skb_set_tail_pointer(skb, skb->len);
}
} else {
struct sk_buff *skb2;
skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */
- skb->dev = net;
-
eth_copy_and_sum(skb, kaweth->rx_buf + 2, pkt_len, 0);
skb_put(skb, pkt_len);
skb->data = memmove(skb->head
+ sizeof (struct nc_header),
skb->data, skb->len);
- skb->tail = skb->data + len;
+ skb_set_tail_pointer(skb, len);
goto encapsulate;
}
}
return ret;
}
+/* Returns 0 on success, error on failure */
static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
{
int i;
*/
if (pegasus->rx_pool[i] == NULL)
return;
- pegasus->rx_pool[i]->dev = pegasus->net;
skb_reserve(pegasus->rx_pool[i], 2);
}
}
* d[0].NO_CARRIER kicks in only with failed TX.
* ... so monitoring with MII may be safest.
*/
- if (d[0] & NO_CARRIER)
- netif_carrier_off(net);
- else
- netif_carrier_on(net);
+ if (pegasus->features & TRUST_LINK_STATUS) {
+ if (d[5] & LINK_STATUS)
+ netif_carrier_on(net);
+ else
+ netif_carrier_off(net);
+ } else {
+ /* Never set carrier _on_ based on ! NO_CARRIER */
+ if (d[0] & NO_CARRIER)
+ netif_carrier_off(net);
+ }
/* bytes 3-4 == rx_lostpkt, reg 2E/2F */
pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
netif_stop_queue(net);
((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
- memcpy(pegasus->tx_buff + 2, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
usb_sndbulkpipe(pegasus->usb, 2),
pegasus->tx_buff, count,
pegasus_t *pegasus = netdev_priv(net);
u16 tmp;
- if (!read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
+ if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
return;
if (tmp & BMSR_LSTATUS)
unlink_all_urbs(pegasus);
free_all_urbs(pegasus);
free_skb_pool(pegasus);
- if (pegasus->rx_skb)
+ if (pegasus->rx_skb != NULL) {
dev_kfree_skb(pegasus->rx_skb);
+ pegasus->rx_skb = NULL;
+ }
free_netdev(pegasus->net);
}
#define PEGASUS_II 0x80000000
#define HAS_HOME_PNA 0x40000000
+#define TRUST_LINK_STATUS 0x20000000
#define PEGASUS_MTU 1536
#define RX_SKBS 4
PEGASUS_DEV( "Allied Telesyn Int. AT-USB100", VENDOR_ALLIEDTEL, 0xb100,
DEFAULT_GPIO_RESET | PEGASUS_II )
PEGASUS_DEV( "Belkin F5D5050 USB Ethernet", VENDOR_BELKIN, 0x0121,
- DEFAULT_GPIO_RESET | PEGASUS_II )
+ DEFAULT_GPIO_RESET | PEGASUS_II | TRUST_LINK_STATUS )
PEGASUS_DEV( "Billionton USB-100", VENDOR_BILLIONTON, 0x0986,
DEFAULT_GPIO_RESET )
PEGASUS_DEV( "Billionton USBLP-100", VENDOR_BILLIONTON, 0x0987,
if (likely((sizeof *hdr) <= room)) {
skb->data = memmove(skb->head + sizeof *hdr,
skb->data, len);
- skb->tail = skb->data + len;
+ skb_set_tail_pointer(skb, len);
goto fill;
}
}
if (!skb) {
return;
}
- skb->dev = dev->netdev;
skb_reserve(skb, 2);
dev->rx_skb_pool[i] = skb;
}
{
int status;
- skb->dev = dev->net;
skb->protocol = eth_type_trans (skb, dev->net);
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
This is particularly important to one driver, matroxfb. If
unsure, say N.
-comment "Frambuffer hardware drivers"
+comment "Frame buffer hardware drivers"
depends on FB
config FB_CIRRUS
struct fb_info *info, unsigned long addr)
{
struct atyfb_par *par = info->par;
- struct pcidev_cookie *pcp;
+ struct device_node *dp;
char prop[128];
int node, len, i, j, ret;
u32 mem, chip_id;
node = 0;
}
- pcp = pdev->sysdata;
- if (node == pcp->prom_node->node) {
+ dp = pci_device_to_OF_node(pdev);
+ if (node == dp->node) {
struct fb_var_screeninfo *var = &default_var;
unsigned int N, P, Q, M, T, R;
u32 v_total, h_total;
}
#endif
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
/*
* Read XTAL (ref clock), SCLK and MCLK from Open Firmware device
* tree. Hopefully, ATI OF driver is kind enough to fill these
return 0;
}
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_OF || CONFIG_SPARC */
/*
* Read PLL infos from chip registers
rinfo->pll.ref_div = INPLL(PPLL_REF_DIV) & PPLL_REF_DIV_MASK;
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
/*
* Retrieve PLL infos from Open Firmware first
*/
printk(KERN_INFO "radeonfb: Retrieved PLL infos from Open Firmware\n");
goto found;
}
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_OF || CONFIG_SPARC */
/*
* Check out if we have an X86 which gave us some PLL informations
rinfo->family == CHIP_FAMILY_RS200)
rinfo->errata |= CHIP_ERRATA_PLL_DELAY;
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
/* On PPC, we obtain the OF device-node pointer to the firmware
* data for this chip
*/
printk(KERN_WARNING "radeonfb (%s): Cannot match card to OF node !\n",
pci_name(rinfo->pdev));
+#endif /* CONFIG_PPC_OF || CONFIG_SPARC */
+#ifdef CONFIG_PPC_OF
/* On PPC, the firmware sets up a memory mapping that tends
* to cause lockups when enabling the engine. We reconfigure
* the card internal memory mappings properly
}
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
/*
* Try to find monitor informations & EDID data out of the Open Firmware
* device-tree. This also contains some "hacks" to work around a few machine
}
return MT_NONE;
}
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_OF || CONFIG_SPARC */
static int __devinit radeon_get_panel_info_BIOS(struct radeonfb_info *rinfo)
* Old single head cards
*/
if (!rinfo->has_CRTC2) {
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
if (rinfo->mon1_type == MT_NONE)
rinfo->mon1_type = radeon_probe_OF_head(rinfo, 0,
&rinfo->mon1_EDID);
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_OF || CONFIG_SPARC */
#ifdef CONFIG_FB_RADEON_I2C
if (rinfo->mon1_type == MT_NONE)
rinfo->mon1_type =
/*
* Probe primary head (DVI or laptop internal panel)
*/
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
if (rinfo->mon1_type == MT_NONE)
rinfo->mon1_type = radeon_probe_OF_head(rinfo, 0,
&rinfo->mon1_EDID);
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_OF || CONFIG_SPARC */
#ifdef CONFIG_FB_RADEON_I2C
if (rinfo->mon1_type == MT_NONE)
rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_dvi,
/*
* Probe secondary head (mostly VGA, can be DVI)
*/
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
if (rinfo->mon2_type == MT_NONE)
rinfo->mon2_type = radeon_probe_OF_head(rinfo, 1,
&rinfo->mon2_EDID);
-#endif /* CONFIG_PPC_OF */
+#endif /* CONFIG_PPC_OF || defined(CONFIG_SPARC) */
#ifdef CONFIG_FB_RADEON_I2C
if (rinfo->mon2_type == MT_NONE)
rinfo->mon2_type = radeon_probe_i2c_connector(rinfo, ddc_vga,
#include <asm/io.h>
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
#include <asm/prom.h>
#endif
unsigned long fb_local_base;
struct pci_dev *pdev;
-#ifdef CONFIG_PPC_OF
+#if defined(CONFIG_PPC_OF) || defined(CONFIG_SPARC)
struct device_node *of_node;
#endif
static void __devinit cg3_rdi_maybe_fixup_var(struct fb_var_screeninfo *var,
struct device_node *dp)
{
- char *params;
+ const char *params;
char *p;
int ww, hh;
#include <asm/io.h>
-#ifdef __sparc__
-#include <asm/pbm.h>
+#ifdef CONFIG_SPARC
+#include <asm/prom.h>
#include <asm/pcic.h>
#endif
.vmode = FB_VMODE_NONINTERLACED
};
-#ifdef __sparc__
+#ifdef CONFIG_SPARC
struct fb_var_screeninfo default_var_1024x768 __initdata = {
/* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
.xres = 1024,
pci_outb(par, val, reg+1);
}
-#endif /* __sparc__ */
+#endif /* CONFIG_SPARC */
/*
* Very important functionality for the JavaEngine1 computer:
iga_outb(par, 0, IGA_EXT_CNTRL, IGA_IDX_OVERSCAN_COLOR + i);
}
-#ifdef __sparc__
+#ifdef CONFIG_SPARC
static int igafb_mmap(struct fb_info *info,
struct vm_area_struct *vma)
{
vma->vm_flags |= VM_IO;
return 0;
}
-#endif /* __sparc__ */
+#endif /* CONFIG_SPARC */
static int igafb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
-#ifdef __sparc__
+#ifdef CONFIG_SPARC
.fb_mmap = igafb_mmap,
#endif
};
par->frame_buffer_phys = addr & PCI_BASE_ADDRESS_MEM_MASK;
-#ifdef __sparc__
+#ifdef CONFIG_SPARC
/*
* The following is sparc specific and this is why:
*
* Set default vmode and cmode from PROM properties.
*/
{
- struct pcidev_cookie *cookie = pdev->sysdata;
- int node = cookie->prom_node;
+ struct device_node *dp = pci_device_to_OF_node(pdev);
+ int node = dp->node;
int width = prom_getintdefault(node, "width", 1024);
int height = prom_getintdefault(node, "height", 768);
int depth = prom_getintdefault(node, "depth", 8);
kfree(info);
}
-#ifdef __sparc__
+#ifdef CONFIG_SPARC
/*
* Add /dev/fb mmap values.
*/
par->mmap_map[1].size = PAGE_SIZE * 2; /* X wants 2 pages */
par->mmap_map[1].prot_mask = SRMMU_CACHE;
par->mmap_map[1].prot_flag = SRMMU_WRITE;
-#endif /* __sparc__ */
+#endif /* CONFIG_SPARC */
return 0;
}
file_inode = file->d_inode;
sb = file_inode->i_sb;
v9ses = v9fs_inode2v9ses(file_inode);
- v9fid = v9fs_fid_lookup(file);
+ v9fid = v9fs_fid_clone(file);
if(IS_ERR(v9fid))
return PTR_ERR(v9fid);
config AFS_FS
tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
depends on INET && EXPERIMENTAL
- select RXRPC
+ select AF_RXRPC
help
If you say Y here, you will get an experimental Andrew File System
driver. It currently only supports unsecured read-only AFS access.
If unsure, say N.
-config RXRPC
- tristate
+config AFS_DEBUG
+ bool "AFS dynamic debugging"
+ depends on AFS_FS
+ help
+ Say Y here to make runtime controllable debugging messages appear.
+
+ See <file:Documentation/filesystems/afs.txt> for more information.
+
+ If unsure, say N.
config 9P_FS
tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
# Makefile for Red Hat Linux AFS client.
#
-#CFLAGS += -finstrument-functions
-
kafs-objs := \
callback.o \
cell.o \
file.o \
fsclient.o \
inode.o \
- kafsasyncd.o \
- kafstimod.o \
main.o \
misc.o \
mntpt.o \
proc.o \
+ rxrpc.o \
+ security.o \
server.o \
super.o \
+ use-rtnetlink.o \
vlclient.o \
vlocation.o \
vnode.o \
--- /dev/null
+/* AFS common types
+ *
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef AFS_H
+#define AFS_H
+
+#include <linux/in.h>
+
+#define AFS_MAXCELLNAME 64 /* maximum length of a cell name */
+#define AFS_MAXVOLNAME 64 /* maximum length of a volume name */
+
+typedef unsigned afs_volid_t;
+typedef unsigned afs_vnodeid_t;
+typedef unsigned long long afs_dataversion_t;
+
+typedef enum {
+ AFSVL_RWVOL, /* read/write volume */
+ AFSVL_ROVOL, /* read-only volume */
+ AFSVL_BACKVOL, /* backup volume */
+} __attribute__((packed)) afs_voltype_t;
+
+typedef enum {
+ AFS_FTYPE_INVALID = 0,
+ AFS_FTYPE_FILE = 1,
+ AFS_FTYPE_DIR = 2,
+ AFS_FTYPE_SYMLINK = 3,
+} afs_file_type_t;
+
+/*
+ * AFS file identifier
+ */
+struct afs_fid {
+ afs_volid_t vid; /* volume ID */
+ afs_vnodeid_t vnode; /* file index within volume */
+ unsigned unique; /* unique ID number (file index version) */
+};
+
+/*
+ * AFS callback notification
+ */
+typedef enum {
+ AFSCM_CB_UNTYPED = 0, /* no type set on CB break */
+ AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */
+ AFSCM_CB_SHARED = 2, /* CB shared by other CM's */
+ AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */
+} afs_callback_type_t;
+
+struct afs_callback {
+ struct afs_fid fid; /* file identifier */
+ unsigned version; /* callback version */
+ unsigned expiry; /* time at which expires */
+ afs_callback_type_t type; /* type of callback */
+};
+
+#define AFSCBMAX 50 /* maximum callbacks transferred per bulk op */
+
+/*
+ * AFS volume information
+ */
+struct afs_volume_info {
+ afs_volid_t vid; /* volume ID */
+ afs_voltype_t type; /* type of this volume */
+ afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */
+
+ /* list of fileservers serving this volume */
+ size_t nservers; /* number of entries used in servers[] */
+ struct {
+ struct in_addr addr; /* fileserver address */
+ } servers[8];
+};
+
+/*
+ * AFS security ACE access mask
+ */
+typedef u32 afs_access_t;
+#define AFS_ACE_READ 0x00000001U /* - permission to read a file/dir */
+#define AFS_ACE_WRITE 0x00000002U /* - permission to write/chmod a file */
+#define AFS_ACE_INSERT 0x00000004U /* - permission to create dirent in a dir */
+#define AFS_ACE_LOOKUP 0x00000008U /* - permission to lookup a file/dir in a dir */
+#define AFS_ACE_DELETE 0x00000010U /* - permission to delete a dirent from a dir */
+#define AFS_ACE_LOCK 0x00000020U /* - permission to lock a file */
+#define AFS_ACE_ADMINISTER 0x00000040U /* - permission to change ACL */
+#define AFS_ACE_USER_A 0x01000000U /* - 'A' user-defined permission */
+#define AFS_ACE_USER_B 0x02000000U /* - 'B' user-defined permission */
+#define AFS_ACE_USER_C 0x04000000U /* - 'C' user-defined permission */
+#define AFS_ACE_USER_D 0x08000000U /* - 'D' user-defined permission */
+#define AFS_ACE_USER_E 0x10000000U /* - 'E' user-defined permission */
+#define AFS_ACE_USER_F 0x20000000U /* - 'F' user-defined permission */
+#define AFS_ACE_USER_G 0x40000000U /* - 'G' user-defined permission */
+#define AFS_ACE_USER_H 0x80000000U /* - 'H' user-defined permission */
+
+/*
+ * AFS file status information
+ */
+struct afs_file_status {
+ unsigned if_version; /* interface version */
+#define AFS_FSTATUS_VERSION 1
+
+ afs_file_type_t type; /* file type */
+ unsigned nlink; /* link count */
+ u64 size; /* file size */
+ afs_dataversion_t data_version; /* current data version */
+ u32 author; /* author ID */
+ u32 owner; /* owner ID */
+ u32 group; /* group ID */
+ afs_access_t caller_access; /* access rights for authenticated caller */
+ afs_access_t anon_access; /* access rights for unauthenticated caller */
+ umode_t mode; /* UNIX mode */
+ struct afs_fid parent; /* parent dir ID for non-dirs only */
+ time_t mtime_client; /* last time client changed data */
+ time_t mtime_server; /* last time server changed data */
+};
+
+/*
+ * AFS file status change request
+ */
+struct afs_store_status {
+ u32 mask; /* which bits of the struct are set */
+ u32 mtime_client; /* last time client changed data */
+ u32 owner; /* owner ID */
+ u32 group; /* group ID */
+ umode_t mode; /* UNIX mode */
+};
+
+#define AFS_SET_MTIME 0x01 /* set the mtime */
+#define AFS_SET_OWNER 0x02 /* set the owner ID */
+#define AFS_SET_GROUP 0x04 /* set the group ID (unsupported?) */
+#define AFS_SET_MODE 0x08 /* set the UNIX mode */
+#define AFS_SET_SEG_SIZE 0x10 /* set the segment size (unsupported) */
+
+/*
+ * AFS volume synchronisation information
+ */
+struct afs_volsync {
+ time_t creation; /* volume creation time */
+};
+
+#endif /* AFS_H */
--- /dev/null
+/* AFS Cache Manager definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef AFS_CM_H
+#define AFS_CM_H
+
+#define AFS_CM_PORT 7001 /* AFS file server port */
+#define CM_SERVICE 1 /* AFS File Service ID */
+
+enum AFS_CM_Operations {
+ CBCallBack = 204, /* break callback promises */
+ CBInitCallBackState = 205, /* initialise callback state */
+ CBProbe = 206, /* probe client */
+ CBGetLock = 207, /* get contents of CM lock table */
+ CBGetCE = 208, /* get cache file description */
+ CBGetXStatsVersion = 209, /* get version of extended statistics */
+ CBGetXStats = 210, /* get contents of extended statistics data */
+ CBInitCallBackState3 = 213, /* initialise callback state, version 3 */
+ CBGetCapabilities = 65538, /* get client capabilities */
+};
+
+#define AFS_CAP_ERROR_TRANSLATION 0x1
+
+#endif /* AFS_FS_H */
--- /dev/null
+/* AFS File Service definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef AFS_FS_H
+#define AFS_FS_H
+
+#define AFS_FS_PORT 7000 /* AFS file server port */
+#define FS_SERVICE 1 /* AFS File Service ID */
+
+enum AFS_FS_Operations {
+ FSFETCHDATA = 130, /* AFS Fetch file data */
+ FSFETCHSTATUS = 132, /* AFS Fetch file status */
+ FSREMOVEFILE = 136, /* AFS Remove a file */
+ FSCREATEFILE = 137, /* AFS Create a file */
+ FSRENAME = 138, /* AFS Rename or move a file or directory */
+ FSSYMLINK = 139, /* AFS Create a symbolic link */
+ FSLINK = 140, /* AFS Create a hard link */
+ FSMAKEDIR = 141, /* AFS Create a directory */
+ FSREMOVEDIR = 142, /* AFS Remove a directory */
+ FSGIVEUPCALLBACKS = 147, /* AFS Discard callback promises */
+ FSGETVOLUMEINFO = 148, /* AFS Get root volume information */
+ FSGETROOTVOLUME = 151, /* AFS Get root volume name */
+ FSLOOKUP = 161, /* AFS lookup file in directory */
+};
+
+enum AFS_FS_Errors {
+ VSALVAGE = 101, /* volume needs salvaging */
+ VNOVNODE = 102, /* no such file/dir (vnode) */
+ VNOVOL = 103, /* no such volume or volume unavailable */
+ VVOLEXISTS = 104, /* volume name already exists */
+ VNOSERVICE = 105, /* volume not currently in service */
+ VOFFLINE = 106, /* volume is currently offline (more info available [VVL-spec]) */
+ VONLINE = 107, /* volume is already online */
+ VDISKFULL = 108, /* disk partition is full */
+ VOVERQUOTA = 109, /* volume's maximum quota exceeded */
+ VBUSY = 110, /* volume is temporarily unavailable */
+ VMOVED = 111, /* volume moved to new server - ask this FS where */
+};
+
+#endif /* AFS_FS_H */
-/* vlclient.h: Volume Location Service client interface
+/* AFS Volume Location Service client interface
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* 2 of the License, or (at your option) any later version.
*/
-#ifndef _LINUX_AFS_VLCLIENT_H
-#define _LINUX_AFS_VLCLIENT_H
+#ifndef AFS_VL_H
+#define AFS_VL_H
-#include "types.h"
+#include "afs.h"
+
+#define AFS_VL_PORT 7003 /* volume location service port */
+#define VL_SERVICE 52 /* RxRPC service ID for the Volume Location service */
+
+enum AFSVL_Operations {
+ VLGETENTRYBYID = 503, /* AFS Get Cache Entry By ID operation ID */
+ VLGETENTRYBYNAME = 504, /* AFS Get Cache Entry By Name operation ID */
+ VLPROBE = 514, /* AFS Probe Volume Location Service operation ID */
+};
enum AFSVL_Errors {
AFSVL_IDEXIST = 363520, /* Volume Id entry exists in vl database */
AFSVL_BADVOLOPER = 363542, /* Bad volume operation code */
AFSVL_BADRELLOCKTYPE = 363543, /* Bad release lock type */
AFSVL_RERELEASE = 363544, /* Status report: last release was aborted */
- AFSVL_BADSERVERFLAG = 363545, /* Invalid replication site server °ag */
+ AFSVL_BADSERVERFLAG = 363545, /* Invalid replication site server °ag */
AFSVL_PERM = 363546, /* No permission access */
AFSVL_NOMEM = 363547, /* malloc/realloc failed to alloc enough memory */
};
-/* maps to "struct vldbentry" in vvl-spec.pdf */
+/*
+ * maps to "struct vldbentry" in vvl-spec.pdf
+ */
struct afs_vldbentry {
- char name[65]; /* name of volume (including NUL char) */
+ char name[65]; /* name of volume (with NUL char) */
afs_voltype_t type; /* volume type */
unsigned num_servers; /* num servers that hold instances of this vol */
unsigned clone_id; /* cloning ID */
#define AFS_VLSF_RWVOL 0x0004 /* this server holds a R/W instance of the volume */
#define AFS_VLSF_BACKVOL 0x0008 /* this server holds a backup instance of the volume */
} servers[8];
-
};
-/* look up a volume location database entry by name */
-extern int afs_rxvl_get_entry_by_name(struct afs_server *server,
- const char *volname,
- unsigned volnamesz,
- struct afs_cache_vlocation *entry);
-
-/* look up a volume location database entry by ID */
-extern int afs_rxvl_get_entry_by_id(struct afs_server *server,
- afs_volid_t volid,
- afs_voltype_t voltype,
- struct afs_cache_vlocation *entry);
-
-extern int afs_rxvl_get_entry_by_id_async(struct afs_async_op *op,
- afs_volid_t volid,
- afs_voltype_t voltype);
-
-extern int afs_rxvl_get_entry_by_id_async2(struct afs_async_op *op,
- struct afs_cache_vlocation *entry);
-
-#endif /* _LINUX_AFS_VLCLIENT_H */
+#endif /* AFS_VL_H */
--- /dev/null
+/* AFS caching stuff
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_cell_cache_match(void *target,
+ const void *entry);
+static void afs_cell_cache_update(void *source, void *entry);
+
+struct cachefs_index_def afs_cache_cell_index_def = {
+ .name = "cell_ix",
+ .data_size = sizeof(struct afs_cache_cell),
+ .keys[0] = { CACHEFS_INDEX_KEYS_ASCIIZ, 64 },
+ .match = afs_cell_cache_match,
+ .update = afs_cell_cache_update,
+};
+#endif
+
+/*
+ * match a cell record obtained from the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_cell_cache_match(void *target,
+ const void *entry)
+{
+ const struct afs_cache_cell *ccell = entry;
+ struct afs_cell *cell = target;
+
+ _enter("{%s},{%s}", ccell->name, cell->name);
+
+ if (strncmp(ccell->name, cell->name, sizeof(ccell->name)) == 0) {
+ _leave(" = SUCCESS");
+ return CACHEFS_MATCH_SUCCESS;
+ }
+
+ _leave(" = FAILED");
+ return CACHEFS_MATCH_FAILED;
+}
+#endif
+
+/*
+ * update a cell record in the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static void afs_cell_cache_update(void *source, void *entry)
+{
+ struct afs_cache_cell *ccell = entry;
+ struct afs_cell *cell = source;
+
+ _enter("%p,%p", source, entry);
+
+ strncpy(ccell->name, cell->name, sizeof(ccell->name));
+
+ memcpy(ccell->vl_servers,
+ cell->vl_addrs,
+ min(sizeof(ccell->vl_servers), sizeof(cell->vl_addrs)));
+
+}
+#endif
+
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_vlocation_cache_match(void *target,
+ const void *entry);
+static void afs_vlocation_cache_update(void *source, void *entry);
+
+struct cachefs_index_def afs_vlocation_cache_index_def = {
+ .name = "vldb",
+ .data_size = sizeof(struct afs_cache_vlocation),
+ .keys[0] = { CACHEFS_INDEX_KEYS_ASCIIZ, 64 },
+ .match = afs_vlocation_cache_match,
+ .update = afs_vlocation_cache_update,
+};
+#endif
+
+/*
+ * match a VLDB record stored in the cache
+ * - may also load target from entry
+ */
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_vlocation_cache_match(void *target,
+ const void *entry)
+{
+ const struct afs_cache_vlocation *vldb = entry;
+ struct afs_vlocation *vlocation = target;
+
+ _enter("{%s},{%s}", vlocation->vldb.name, vldb->name);
+
+ if (strncmp(vlocation->vldb.name, vldb->name, sizeof(vldb->name)) == 0
+ ) {
+ if (!vlocation->valid ||
+ vlocation->vldb.rtime == vldb->rtime
+ ) {
+ vlocation->vldb = *vldb;
+ vlocation->valid = 1;
+ _leave(" = SUCCESS [c->m]");
+ return CACHEFS_MATCH_SUCCESS;
+ } else if (memcmp(&vlocation->vldb, vldb, sizeof(*vldb)) != 0) {
+ /* delete if VIDs for this name differ */
+ if (memcmp(&vlocation->vldb.vid,
+ &vldb->vid,
+ sizeof(vldb->vid)) != 0) {
+ _leave(" = DELETE");
+ return CACHEFS_MATCH_SUCCESS_DELETE;
+ }
+
+ _leave(" = UPDATE");
+ return CACHEFS_MATCH_SUCCESS_UPDATE;
+ } else {
+ _leave(" = SUCCESS");
+ return CACHEFS_MATCH_SUCCESS;
+ }
+ }
+
+ _leave(" = FAILED");
+ return CACHEFS_MATCH_FAILED;
+}
+#endif
+
+/*
+ * update a VLDB record stored in the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static void afs_vlocation_cache_update(void *source, void *entry)
+{
+ struct afs_cache_vlocation *vldb = entry;
+ struct afs_vlocation *vlocation = source;
+
+ _enter("");
+
+ *vldb = vlocation->vldb;
+}
+#endif
+
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_volume_cache_match(void *target,
+ const void *entry);
+static void afs_volume_cache_update(void *source, void *entry);
+
+struct cachefs_index_def afs_volume_cache_index_def = {
+ .name = "volume",
+ .data_size = sizeof(struct afs_cache_vhash),
+ .keys[0] = { CACHEFS_INDEX_KEYS_BIN, 1 },
+ .keys[1] = { CACHEFS_INDEX_KEYS_BIN, 1 },
+ .match = afs_volume_cache_match,
+ .update = afs_volume_cache_update,
+};
+#endif
+
+/*
+ * match a volume hash record stored in the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_volume_cache_match(void *target,
+ const void *entry)
+{
+ const struct afs_cache_vhash *vhash = entry;
+ struct afs_volume *volume = target;
+
+ _enter("{%u},{%u}", volume->type, vhash->vtype);
+
+ if (volume->type == vhash->vtype) {
+ _leave(" = SUCCESS");
+ return CACHEFS_MATCH_SUCCESS;
+ }
+
+ _leave(" = FAILED");
+ return CACHEFS_MATCH_FAILED;
+}
+#endif
+
+/*
+ * update a volume hash record stored in the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static void afs_volume_cache_update(void *source, void *entry)
+{
+ struct afs_cache_vhash *vhash = entry;
+ struct afs_volume *volume = source;
+
+ _enter("");
+
+ vhash->vtype = volume->type;
+}
+#endif
+
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_vnode_cache_match(void *target,
+ const void *entry);
+static void afs_vnode_cache_update(void *source, void *entry);
+
+struct cachefs_index_def afs_vnode_cache_index_def = {
+ .name = "vnode",
+ .data_size = sizeof(struct afs_cache_vnode),
+ .keys[0] = { CACHEFS_INDEX_KEYS_BIN, 4 },
+ .match = afs_vnode_cache_match,
+ .update = afs_vnode_cache_update,
+};
+#endif
+
+/*
+ * match a vnode record stored in the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static cachefs_match_val_t afs_vnode_cache_match(void *target,
+ const void *entry)
+{
+ const struct afs_cache_vnode *cvnode = entry;
+ struct afs_vnode *vnode = target;
+
+ _enter("{%x,%x,%Lx},{%x,%x,%Lx}",
+ vnode->fid.vnode,
+ vnode->fid.unique,
+ vnode->status.version,
+ cvnode->vnode_id,
+ cvnode->vnode_unique,
+ cvnode->data_version);
+
+ if (vnode->fid.vnode != cvnode->vnode_id) {
+ _leave(" = FAILED");
+ return CACHEFS_MATCH_FAILED;
+ }
+
+ if (vnode->fid.unique != cvnode->vnode_unique ||
+ vnode->status.version != cvnode->data_version) {
+ _leave(" = DELETE");
+ return CACHEFS_MATCH_SUCCESS_DELETE;
+ }
+
+ _leave(" = SUCCESS");
+ return CACHEFS_MATCH_SUCCESS;
+}
+#endif
+
+/*
+ * update a vnode record stored in the cache
+ */
+#ifdef AFS_CACHING_SUPPORT
+static void afs_vnode_cache_update(void *source, void *entry)
+{
+ struct afs_cache_vnode *cvnode = entry;
+ struct afs_vnode *vnode = source;
+
+ _enter("");
+
+ cvnode->vnode_id = vnode->fid.vnode;
+ cvnode->vnode_unique = vnode->fid.unique;
+ cvnode->data_version = vnode->status.version;
+}
+#endif
-/* cache.h: AFS local cache management interface
+/* AFS local cache management interface
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
* 2 of the License, or (at your option) any later version.
*/
-#ifndef _LINUX_AFS_CACHE_H
-#define _LINUX_AFS_CACHE_H
+#ifndef AFS_CACHE_H
+#define AFS_CACHE_H
#undef AFS_CACHING_SUPPORT
#endif
#include "types.h"
-#ifdef __KERNEL__
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_AFS_CACHE_H */
+#endif /* AFS_CACHE_H */
/*
- * Copyright (c) 2002 Red Hat, Inc. All rights reserved.
+ * Copyright (c) 2002, 2007 Red Hat, Inc. All rights reserved.
*
* This software may be freely redistributed under the terms of the
* GNU General Public License.
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include "server.h"
-#include "vnode.h"
+#include <linux/circ_buf.h>
#include "internal.h"
-#include "cmservice.h"
-/*****************************************************************************/
+unsigned afs_vnode_update_timeout = 10;
+
+#define afs_breakring_space(server) \
+ CIRC_SPACE((server)->cb_break_head, (server)->cb_break_tail, \
+ ARRAY_SIZE((server)->cb_break))
+
+//static void afs_callback_updater(struct work_struct *);
+
+static struct workqueue_struct *afs_callback_update_worker;
+
/*
* allow the fileserver to request callback state (re-)initialisation
*/
-int SRXAFSCM_InitCallBackState(struct afs_server *server)
+void afs_init_callback_state(struct afs_server *server)
{
- struct list_head callbacks;
+ struct afs_vnode *vnode;
- _enter("%p", server);
+ _enter("{%p}", server);
- INIT_LIST_HEAD(&callbacks);
-
- /* transfer the callback list from the server to a temp holding area */
spin_lock(&server->cb_lock);
- list_add(&callbacks, &server->cb_promises);
- list_del_init(&server->cb_promises);
+ /* kill all the promises on record from this server */
+ while (!RB_EMPTY_ROOT(&server->cb_promises)) {
+ vnode = rb_entry(server->cb_promises.rb_node,
+ struct afs_vnode, cb_promise);
+ _debug("UNPROMISE { vid=%x vn=%u uq=%u}",
+ vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
+ rb_erase(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = false;
+ }
- /* munch our way through the list, grabbing the inode, dropping all the
- * locks and regetting them in the right order
- */
- while (!list_empty(&callbacks)) {
- struct afs_vnode *vnode;
- struct inode *inode;
+ spin_unlock(&server->cb_lock);
+ _leave("");
+}
- vnode = list_entry(callbacks.next, struct afs_vnode, cb_link);
- list_del_init(&vnode->cb_link);
+/*
+ * handle the data invalidation side of a callback being broken
+ */
+void afs_broken_callback_work(struct work_struct *work)
+{
+ struct afs_vnode *vnode =
+ container_of(work, struct afs_vnode, cb_broken_work);
- /* try and grab the inode - may fail */
- inode = igrab(AFS_VNODE_TO_I(vnode));
- if (inode) {
- int release = 0;
+ _enter("");
- spin_unlock(&server->cb_lock);
- spin_lock(&vnode->lock);
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
+ return;
- if (vnode->cb_server == server) {
- vnode->cb_server = NULL;
- afs_kafstimod_del_timer(&vnode->cb_timeout);
- spin_lock(&afs_cb_hash_lock);
- list_del_init(&vnode->cb_hash_link);
- spin_unlock(&afs_cb_hash_lock);
- release = 1;
- }
+ /* we're only interested in dealing with a broken callback on *this*
+ * vnode and only if no-one else has dealt with it yet */
+ if (!mutex_trylock(&vnode->validate_lock))
+ return; /* someone else is dealing with it */
- spin_unlock(&vnode->lock);
+ if (test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags)) {
+ if (S_ISDIR(vnode->vfs_inode.i_mode))
+ afs_clear_permits(vnode);
- iput(inode);
- afs_put_server(server);
+ if (afs_vnode_fetch_status(vnode, NULL, NULL) < 0)
+ goto out;
- spin_lock(&server->cb_lock);
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
+ goto out;
+
+ /* if the vnode's data version number changed then its contents
+ * are different */
+ if (test_and_clear_bit(AFS_VNODE_ZAP_DATA, &vnode->flags)) {
+ _debug("zap data {%x:%u}",
+ vnode->fid.vid, vnode->fid.vnode);
+ invalidate_remote_inode(&vnode->vfs_inode);
}
}
- spin_unlock(&server->cb_lock);
+out:
+ mutex_unlock(&vnode->validate_lock);
- _leave(" = 0");
- return 0;
-} /* end SRXAFSCM_InitCallBackState() */
+ /* avoid the potential race whereby the mutex_trylock() in this
+ * function happens again between the clear_bit() and the
+ * mutex_unlock() */
+ if (test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags)) {
+ _debug("requeue");
+ queue_work(afs_callback_update_worker, &vnode->cb_broken_work);
+ }
+ _leave("");
+}
+
+/*
+ * actually break a callback
+ */
+static void afs_break_callback(struct afs_server *server,
+ struct afs_vnode *vnode)
+{
+ _enter("");
+
+ set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+
+ if (vnode->cb_promised) {
+ spin_lock(&vnode->lock);
+
+ _debug("break callback");
+
+ spin_lock(&server->cb_lock);
+ if (vnode->cb_promised) {
+ rb_erase(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = false;
+ }
+ spin_unlock(&server->cb_lock);
+
+ queue_work(afs_callback_update_worker, &vnode->cb_broken_work);
+ spin_unlock(&vnode->lock);
+ }
+}
+
+/*
+ * allow the fileserver to explicitly break one callback
+ * - happens when
+ * - the backing file is changed
+ * - a lock is released
+ */
+static void afs_break_one_callback(struct afs_server *server,
+ struct afs_fid *fid)
+{
+ struct afs_vnode *vnode;
+ struct rb_node *p;
+
+ _debug("find");
+ spin_lock(&server->fs_lock);
+ p = server->fs_vnodes.rb_node;
+ while (p) {
+ vnode = rb_entry(p, struct afs_vnode, server_rb);
+ if (fid->vid < vnode->fid.vid)
+ p = p->rb_left;
+ else if (fid->vid > vnode->fid.vid)
+ p = p->rb_right;
+ else if (fid->vnode < vnode->fid.vnode)
+ p = p->rb_left;
+ else if (fid->vnode > vnode->fid.vnode)
+ p = p->rb_right;
+ else if (fid->unique < vnode->fid.unique)
+ p = p->rb_left;
+ else if (fid->unique > vnode->fid.unique)
+ p = p->rb_right;
+ else
+ goto found;
+ }
+
+ /* not found so we just ignore it (it may have moved to another
+ * server) */
+not_available:
+ _debug("not avail");
+ spin_unlock(&server->fs_lock);
+ _leave("");
+ return;
+
+found:
+ _debug("found");
+ ASSERTCMP(server, ==, vnode->server);
+
+ if (!igrab(AFS_VNODE_TO_I(vnode)))
+ goto not_available;
+ spin_unlock(&server->fs_lock);
+
+ afs_break_callback(server, vnode);
+ iput(&vnode->vfs_inode);
+ _leave("");
+}
-/*****************************************************************************/
/*
* allow the fileserver to break callback promises
*/
-int SRXAFSCM_CallBack(struct afs_server *server, size_t count,
- struct afs_callback callbacks[])
+void afs_break_callbacks(struct afs_server *server, size_t count,
+ struct afs_callback callbacks[])
{
- _enter("%p,%u,", server, count);
+ _enter("%p,%zu,", server, count);
- for (; count > 0; callbacks++, count--) {
- struct afs_vnode *vnode = NULL;
- struct inode *inode = NULL;
- int valid = 0;
+ ASSERT(server != NULL);
+ ASSERTCMP(count, <=, AFSCBMAX);
+ for (; count > 0; callbacks++, count--) {
_debug("- Fid { vl=%08x n=%u u=%u } CB { v=%u x=%u t=%u }",
callbacks->fid.vid,
callbacks->fid.vnode,
callbacks->expiry,
callbacks->type
);
+ afs_break_one_callback(server, &callbacks->fid);
+ }
- /* find the inode for this fid */
- spin_lock(&afs_cb_hash_lock);
+ _leave("");
+ return;
+}
- list_for_each_entry(vnode,
- &afs_cb_hash(server, &callbacks->fid),
- cb_hash_link) {
- if (memcmp(&vnode->fid, &callbacks->fid,
- sizeof(struct afs_fid)) != 0)
- continue;
+/*
+ * record the callback for breaking
+ * - the caller must hold server->cb_lock
+ */
+static void afs_do_give_up_callback(struct afs_server *server,
+ struct afs_vnode *vnode)
+{
+ struct afs_callback *cb;
- /* right vnode, but is it same server? */
- if (vnode->cb_server != server)
- break; /* no */
+ _enter("%p,%p", server, vnode);
- /* try and nail the inode down */
- inode = igrab(AFS_VNODE_TO_I(vnode));
- break;
+ cb = &server->cb_break[server->cb_break_head];
+ cb->fid = vnode->fid;
+ cb->version = vnode->cb_version;
+ cb->expiry = vnode->cb_expiry;
+ cb->type = vnode->cb_type;
+ smp_wmb();
+ server->cb_break_head =
+ (server->cb_break_head + 1) &
+ (ARRAY_SIZE(server->cb_break) - 1);
+
+ /* defer the breaking of callbacks to try and collect as many as
+ * possible to ship in one operation */
+ switch (atomic_inc_return(&server->cb_break_n)) {
+ case 1 ... AFSCBMAX - 1:
+ queue_delayed_work(afs_callback_update_worker,
+ &server->cb_break_work, HZ * 2);
+ break;
+ case AFSCBMAX:
+ afs_flush_callback_breaks(server);
+ break;
+ default:
+ break;
+ }
+
+ ASSERT(server->cb_promises.rb_node != NULL);
+ rb_erase(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = false;
+ _leave("");
+}
+
+/*
+ * discard the callback on a deleted item
+ */
+void afs_discard_callback_on_delete(struct afs_vnode *vnode)
+{
+ struct afs_server *server = vnode->server;
+
+ _enter("%d", vnode->cb_promised);
+
+ if (!vnode->cb_promised) {
+ _leave(" [not promised]");
+ return;
+ }
+
+ ASSERT(server != NULL);
+
+ spin_lock(&server->cb_lock);
+ if (vnode->cb_promised) {
+ ASSERT(server->cb_promises.rb_node != NULL);
+ rb_erase(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = false;
+ }
+ spin_unlock(&server->cb_lock);
+ _leave("");
+}
+
+/*
+ * give up the callback registered for a vnode on the file server when the
+ * inode is being cleared
+ */
+void afs_give_up_callback(struct afs_vnode *vnode)
+{
+ struct afs_server *server = vnode->server;
+
+ DECLARE_WAITQUEUE(myself, current);
+
+ _enter("%d", vnode->cb_promised);
+
+ _debug("GIVE UP INODE %p", &vnode->vfs_inode);
+
+ if (!vnode->cb_promised) {
+ _leave(" [not promised]");
+ return;
+ }
+
+ ASSERT(server != NULL);
+
+ spin_lock(&server->cb_lock);
+ if (vnode->cb_promised && afs_breakring_space(server) == 0) {
+ add_wait_queue(&server->cb_break_waitq, &myself);
+ for (;;) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ if (!vnode->cb_promised ||
+ afs_breakring_space(server) != 0)
+ break;
+ spin_unlock(&server->cb_lock);
+ schedule();
+ spin_lock(&server->cb_lock);
}
+ remove_wait_queue(&server->cb_break_waitq, &myself);
+ __set_current_state(TASK_RUNNING);
+ }
+
+ /* of course, it's always possible for the server to break this vnode's
+ * callback first... */
+ if (vnode->cb_promised)
+ afs_do_give_up_callback(server, vnode);
+
+ spin_unlock(&server->cb_lock);
+ _leave("");
+}
+
+/*
+ * dispatch a deferred give up callbacks operation
+ */
+void afs_dispatch_give_up_callbacks(struct work_struct *work)
+{
+ struct afs_server *server =
+ container_of(work, struct afs_server, cb_break_work.work);
+
+ _enter("");
+
+ /* tell the fileserver to discard the callback promises it has
+ * - in the event of ENOMEM or some other error, we just forget that we
+ * had callbacks entirely, and the server will call us later to break
+ * them
+ */
+ afs_fs_give_up_callbacks(server, &afs_async_call);
+}
+
+/*
+ * flush the outstanding callback breaks on a server
+ */
+void afs_flush_callback_breaks(struct afs_server *server)
+{
+ cancel_delayed_work(&server->cb_break_work);
+ queue_delayed_work(afs_callback_update_worker,
+ &server->cb_break_work, 0);
+}
- spin_unlock(&afs_cb_hash_lock);
-
- if (inode) {
- /* we've found the record for this vnode */
- spin_lock(&vnode->lock);
- if (vnode->cb_server == server) {
- /* the callback _is_ on the calling server */
- vnode->cb_server = NULL;
- valid = 1;
-
- afs_kafstimod_del_timer(&vnode->cb_timeout);
- vnode->flags |= AFS_VNODE_CHANGED;
-
- spin_lock(&server->cb_lock);
- list_del_init(&vnode->cb_link);
- spin_unlock(&server->cb_lock);
-
- spin_lock(&afs_cb_hash_lock);
- list_del_init(&vnode->cb_hash_link);
- spin_unlock(&afs_cb_hash_lock);
- }
- spin_unlock(&vnode->lock);
-
- if (valid) {
- invalidate_remote_inode(inode);
- afs_put_server(server);
- }
- iput(inode);
+#if 0
+/*
+ * update a bunch of callbacks
+ */
+static void afs_callback_updater(struct work_struct *work)
+{
+ struct afs_server *server;
+ struct afs_vnode *vnode, *xvnode;
+ time_t now;
+ long timeout;
+ int ret;
+
+ server = container_of(work, struct afs_server, updater);
+
+ _enter("");
+
+ now = get_seconds();
+
+ /* find the first vnode to update */
+ spin_lock(&server->cb_lock);
+ for (;;) {
+ if (RB_EMPTY_ROOT(&server->cb_promises)) {
+ spin_unlock(&server->cb_lock);
+ _leave(" [nothing]");
+ return;
}
+
+ vnode = rb_entry(rb_first(&server->cb_promises),
+ struct afs_vnode, cb_promise);
+ if (atomic_read(&vnode->usage) > 0)
+ break;
+ rb_erase(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = false;
}
- _leave(" = 0");
- return 0;
-} /* end SRXAFSCM_CallBack() */
+ timeout = vnode->update_at - now;
+ if (timeout > 0) {
+ queue_delayed_work(afs_vnode_update_worker,
+ &afs_vnode_update, timeout * HZ);
+ spin_unlock(&server->cb_lock);
+ _leave(" [nothing]");
+ return;
+ }
+
+ list_del_init(&vnode->update);
+ atomic_inc(&vnode->usage);
+ spin_unlock(&server->cb_lock);
+
+ /* we can now perform the update */
+ _debug("update %s", vnode->vldb.name);
+ vnode->state = AFS_VL_UPDATING;
+ vnode->upd_rej_cnt = 0;
+ vnode->upd_busy_cnt = 0;
+
+ ret = afs_vnode_update_record(vl, &vldb);
+ switch (ret) {
+ case 0:
+ afs_vnode_apply_update(vl, &vldb);
+ vnode->state = AFS_VL_UPDATING;
+ break;
+ case -ENOMEDIUM:
+ vnode->state = AFS_VL_VOLUME_DELETED;
+ break;
+ default:
+ vnode->state = AFS_VL_UNCERTAIN;
+ break;
+ }
+
+ /* and then reschedule */
+ _debug("reschedule");
+ vnode->update_at = get_seconds() + afs_vnode_update_timeout;
+
+ spin_lock(&server->cb_lock);
+
+ if (!list_empty(&server->cb_promises)) {
+ /* next update in 10 minutes, but wait at least 1 second more
+ * than the newest record already queued so that we don't spam
+ * the VL server suddenly with lots of requests
+ */
+ xvnode = list_entry(server->cb_promises.prev,
+ struct afs_vnode, update);
+ if (vnode->update_at <= xvnode->update_at)
+ vnode->update_at = xvnode->update_at + 1;
+ xvnode = list_entry(server->cb_promises.next,
+ struct afs_vnode, update);
+ timeout = xvnode->update_at - now;
+ if (timeout < 0)
+ timeout = 0;
+ } else {
+ timeout = afs_vnode_update_timeout;
+ }
+
+ list_add_tail(&vnode->update, &server->cb_promises);
+
+ _debug("timeout %ld", timeout);
+ queue_delayed_work(afs_vnode_update_worker,
+ &afs_vnode_update, timeout * HZ);
+ spin_unlock(&server->cb_lock);
+ afs_put_vnode(vl);
+}
+#endif
+
+/*
+ * initialise the callback update process
+ */
+int __init afs_callback_update_init(void)
+{
+ afs_callback_update_worker =
+ create_singlethread_workqueue("kafs_callbackd");
+ return afs_callback_update_worker ? 0 : -ENOMEM;
+}
-/*****************************************************************************/
/*
- * allow the fileserver to see if the cache manager is still alive
+ * shut down the callback update process
*/
-int SRXAFSCM_Probe(struct afs_server *server)
+void __exit afs_callback_update_kill(void)
{
- _debug("SRXAFSCM_Probe(%p)\n", server);
- return 0;
-} /* end SRXAFSCM_Probe() */
+ destroy_workqueue(afs_callback_update_worker);
+}
-/* cell.c: AFS cell and server record management
+/* AFS cell and server record management
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#include <linux/module.h>
#include <linux/slab.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include "volume.h"
-#include "cell.h"
-#include "server.h"
-#include "transport.h"
-#include "vlclient.h"
-#include "kafstimod.h"
-#include "super.h"
+#include <linux/key.h>
+#include <linux/ctype.h>
+#include <keys/rxrpc-type.h>
#include "internal.h"
DECLARE_RWSEM(afs_proc_cells_sem);
static struct list_head afs_cells = LIST_HEAD_INIT(afs_cells);
static DEFINE_RWLOCK(afs_cells_lock);
static DECLARE_RWSEM(afs_cells_sem); /* add/remove serialisation */
+static DECLARE_WAIT_QUEUE_HEAD(afs_cells_freeable_wq);
static struct afs_cell *afs_cell_root;
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_cell_cache_match(void *target,
- const void *entry);
-static void afs_cell_cache_update(void *source, void *entry);
-
-struct cachefs_index_def afs_cache_cell_index_def = {
- .name = "cell_ix",
- .data_size = sizeof(struct afs_cache_cell),
- .keys[0] = { CACHEFS_INDEX_KEYS_ASCIIZ, 64 },
- .match = afs_cell_cache_match,
- .update = afs_cell_cache_update,
-};
-#endif
-
-/*****************************************************************************/
/*
- * create a cell record
- * - "name" is the name of the cell
- * - "vllist" is a colon separated list of IP addresses in "a.b.c.d" format
+ * allocate a cell record and fill in its name, VL server address list and
+ * allocate an anonymous key
*/
-int afs_cell_create(const char *name, char *vllist, struct afs_cell **_cell)
+static struct afs_cell *afs_cell_alloc(const char *name, char *vllist)
{
struct afs_cell *cell;
- char *next;
+ size_t namelen;
+ char keyname[4 + AFS_MAXCELLNAME + 1], *cp, *dp, *next;
int ret;
- _enter("%s", name);
+ _enter("%s,%s", name, vllist);
BUG_ON(!name); /* TODO: want to look up "this cell" in the cache */
+ namelen = strlen(name);
+ if (namelen > AFS_MAXCELLNAME)
+ return ERR_PTR(-ENAMETOOLONG);
+
/* allocate and initialise a cell record */
- cell = kmalloc(sizeof(struct afs_cell) + strlen(name) + 1, GFP_KERNEL);
+ cell = kzalloc(sizeof(struct afs_cell) + namelen + 1, GFP_KERNEL);
if (!cell) {
_leave(" = -ENOMEM");
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
- down_write(&afs_cells_sem);
-
- memset(cell, 0, sizeof(struct afs_cell));
- atomic_set(&cell->usage, 0);
+ memcpy(cell->name, name, namelen);
+ cell->name[namelen] = 0;
+ atomic_set(&cell->usage, 1);
INIT_LIST_HEAD(&cell->link);
-
- rwlock_init(&cell->sv_lock);
- INIT_LIST_HEAD(&cell->sv_list);
- INIT_LIST_HEAD(&cell->sv_graveyard);
- spin_lock_init(&cell->sv_gylock);
-
+ rwlock_init(&cell->servers_lock);
+ INIT_LIST_HEAD(&cell->servers);
init_rwsem(&cell->vl_sem);
INIT_LIST_HEAD(&cell->vl_list);
- INIT_LIST_HEAD(&cell->vl_graveyard);
- spin_lock_init(&cell->vl_gylock);
-
- strcpy(cell->name,name);
+ spin_lock_init(&cell->vl_lock);
/* fill in the VL server list from the rest of the string */
- ret = -EINVAL;
do {
unsigned a, b, c, d;
*next++ = 0;
if (sscanf(vllist, "%u.%u.%u.%u", &a, &b, &c, &d) != 4)
- goto badaddr;
+ goto bad_address;
if (a > 255 || b > 255 || c > 255 || d > 255)
- goto badaddr;
+ goto bad_address;
cell->vl_addrs[cell->vl_naddrs++].s_addr =
htonl((a << 24) | (b << 16) | (c << 8) | d);
- if (cell->vl_naddrs >= AFS_CELL_MAX_ADDRS)
- break;
+ } while (cell->vl_naddrs < AFS_CELL_MAX_ADDRS && (vllist = next));
+
+ /* create a key to represent an anonymous user */
+ memcpy(keyname, "afs@", 4);
+ dp = keyname + 4;
+ cp = cell->name;
+ do {
+ *dp++ = toupper(*cp);
+ } while (*cp++);
+ cell->anonymous_key = key_alloc(&key_type_rxrpc, keyname, 0, 0, current,
+ KEY_POS_SEARCH, KEY_ALLOC_NOT_IN_QUOTA);
+ if (IS_ERR(cell->anonymous_key)) {
+ _debug("no key");
+ ret = PTR_ERR(cell->anonymous_key);
+ goto error;
+ }
+
+ ret = key_instantiate_and_link(cell->anonymous_key, NULL, 0,
+ NULL, NULL);
+ if (ret < 0) {
+ _debug("instantiate failed");
+ goto error;
+ }
+
+ _debug("anon key %p{%x}",
+ cell->anonymous_key, key_serial(cell->anonymous_key));
+
+ _leave(" = %p", cell);
+ return cell;
+
+bad_address:
+ printk(KERN_ERR "kAFS: bad VL server IP address\n");
+ ret = -EINVAL;
+error:
+ key_put(cell->anonymous_key);
+ kfree(cell);
+ _leave(" = %d", ret);
+ return ERR_PTR(ret);
+}
+
+/*
+ * create a cell record
+ * - "name" is the name of the cell
+ * - "vllist" is a colon separated list of IP addresses in "a.b.c.d" format
+ */
+struct afs_cell *afs_cell_create(const char *name, char *vllist)
+{
+ struct afs_cell *cell;
+ int ret;
+
+ _enter("%s,%s", name, vllist);
- } while(vllist = next, vllist);
+ cell = afs_cell_alloc(name, vllist);
+ if (IS_ERR(cell)) {
+ _leave(" = %ld", PTR_ERR(cell));
+ return cell;
+ }
+
+ down_write(&afs_cells_sem);
- /* add a proc dir for this cell */
+ /* add a proc directory for this cell */
ret = afs_proc_cell_setup(cell);
if (ret < 0)
goto error;
down_write(&afs_proc_cells_sem);
list_add_tail(&cell->proc_link, &afs_proc_cells);
up_write(&afs_proc_cells_sem);
-
- *_cell = cell;
up_write(&afs_cells_sem);
- _leave(" = 0 (%p)", cell);
- return 0;
+ _leave(" = %p", cell);
+ return cell;
- badaddr:
- printk(KERN_ERR "kAFS: bad VL server IP address: '%s'\n", vllist);
- error:
+error:
up_write(&afs_cells_sem);
+ key_put(cell->anonymous_key);
kfree(cell);
_leave(" = %d", ret);
- return ret;
-} /* end afs_cell_create() */
+ return ERR_PTR(ret);
+}
-/*****************************************************************************/
/*
- * initialise the cell database from module parameters
+ * set the root cell information
+ * - can be called with a module parameter string
+ * - can be called from a write to /proc/fs/afs/rootcell
*/
int afs_cell_init(char *rootcell)
{
struct afs_cell *old_root, *new_root;
char *cp;
- int ret;
_enter("");
/* module is loaded with no parameters, or built statically.
* - in the future we might initialize cell DB here.
*/
- _leave(" = 0 (but no root)");
+ _leave(" = 0 [no root]");
return 0;
}
cp = strchr(rootcell, ':');
if (!cp) {
printk(KERN_ERR "kAFS: no VL server IP addresses specified\n");
- _leave(" = %d (no colon)", -EINVAL);
+ _leave(" = -EINVAL");
return -EINVAL;
}
/* allocate a cell record for the root cell */
*cp++ = 0;
- ret = afs_cell_create(rootcell, cp, &new_root);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
+ new_root = afs_cell_create(rootcell, cp);
+ if (IS_ERR(new_root)) {
+ _leave(" = %ld", PTR_ERR(new_root));
+ return PTR_ERR(new_root);
}
- /* as afs_put_cell() takes locks by itself, we have to do
- * a little gymnastics to be race-free.
- */
- afs_get_cell(new_root);
-
+ /* install the new cell */
write_lock(&afs_cells_lock);
- while (afs_cell_root) {
- old_root = afs_cell_root;
- afs_cell_root = NULL;
- write_unlock(&afs_cells_lock);
- afs_put_cell(old_root);
- write_lock(&afs_cells_lock);
- }
+ old_root = afs_cell_root;
afs_cell_root = new_root;
write_unlock(&afs_cells_lock);
+ afs_put_cell(old_root);
- _leave(" = %d", ret);
- return ret;
-
-} /* end afs_cell_init() */
+ _leave(" = 0");
+ return 0;
+}
-/*****************************************************************************/
/*
* lookup a cell record
*/
-int afs_cell_lookup(const char *name, unsigned namesz, struct afs_cell **_cell)
+struct afs_cell *afs_cell_lookup(const char *name, unsigned namesz)
{
struct afs_cell *cell;
- int ret;
_enter("\"%*.*s\",", namesz, namesz, name ? name : "");
- *_cell = NULL;
+ down_read(&afs_cells_sem);
+ read_lock(&afs_cells_lock);
if (name) {
/* if the cell was named, look for it in the cell record list */
- ret = -ENOENT;
- cell = NULL;
- read_lock(&afs_cells_lock);
-
list_for_each_entry(cell, &afs_cells, link) {
if (strncmp(cell->name, name, namesz) == 0) {
afs_get_cell(cell);
goto found;
}
}
- cell = NULL;
+ cell = ERR_PTR(-ENOENT);
found:
-
- read_unlock(&afs_cells_lock);
-
- if (cell)
- ret = 0;
- }
- else {
- read_lock(&afs_cells_lock);
-
+ ;
+ } else {
cell = afs_cell_root;
if (!cell) {
/* this should not happen unless user tries to mount
* ENOENT might be "more appropriate" but they happen
* for other reasons.
*/
- ret = -EDESTADDRREQ;
- }
- else {
+ cell = ERR_PTR(-EDESTADDRREQ);
+ } else {
afs_get_cell(cell);
- ret = 0;
}
- read_unlock(&afs_cells_lock);
}
- *_cell = cell;
- _leave(" = %d (%p)", ret, cell);
- return ret;
-
-} /* end afs_cell_lookup() */
+ read_unlock(&afs_cells_lock);
+ up_read(&afs_cells_sem);
+ _leave(" = %p", cell);
+ return cell;
+}
-/*****************************************************************************/
/*
* try and get a cell record
*/
-struct afs_cell *afs_get_cell_maybe(struct afs_cell **_cell)
+struct afs_cell *afs_get_cell_maybe(struct afs_cell *cell)
{
- struct afs_cell *cell;
-
write_lock(&afs_cells_lock);
- cell = *_cell;
if (cell && !list_empty(&cell->link))
afs_get_cell(cell);
else
cell = NULL;
write_unlock(&afs_cells_lock);
-
return cell;
-} /* end afs_get_cell_maybe() */
+}
-/*****************************************************************************/
/*
* destroy a cell record
*/
_enter("%p{%d,%s}", cell, atomic_read(&cell->usage), cell->name);
- /* sanity check */
- BUG_ON(atomic_read(&cell->usage) <= 0);
+ ASSERTCMP(atomic_read(&cell->usage), >, 0);
/* to prevent a race, the decrement and the dequeue must be effectively
* atomic */
return;
}
+ ASSERT(list_empty(&cell->servers));
+ ASSERT(list_empty(&cell->vl_list));
+
write_unlock(&afs_cells_lock);
- BUG_ON(!list_empty(&cell->sv_list));
- BUG_ON(!list_empty(&cell->sv_graveyard));
- BUG_ON(!list_empty(&cell->vl_list));
- BUG_ON(!list_empty(&cell->vl_graveyard));
+ wake_up(&afs_cells_freeable_wq);
_leave(" [unused]");
-} /* end afs_put_cell() */
+}
-/*****************************************************************************/
/*
* destroy a cell record
+ * - must be called with the afs_cells_sem write-locked
+ * - cell->link should have been broken by the caller
*/
static void afs_cell_destroy(struct afs_cell *cell)
{
_enter("%p{%d,%s}", cell, atomic_read(&cell->usage), cell->name);
- /* to prevent a race, the decrement and the dequeue must be effectively
- * atomic */
- write_lock(&afs_cells_lock);
+ ASSERTCMP(atomic_read(&cell->usage), >=, 0);
+ ASSERT(list_empty(&cell->link));
- /* sanity check */
- BUG_ON(atomic_read(&cell->usage) != 0);
+ /* wait for everyone to stop using the cell */
+ if (atomic_read(&cell->usage) > 0) {
+ DECLARE_WAITQUEUE(myself, current);
- list_del_init(&cell->link);
+ _debug("wait for cell %s", cell->name);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&afs_cells_freeable_wq, &myself);
- write_unlock(&afs_cells_lock);
+ while (atomic_read(&cell->usage) > 0) {
+ schedule();
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ }
- down_write(&afs_cells_sem);
+ remove_wait_queue(&afs_cells_freeable_wq, &myself);
+ set_current_state(TASK_RUNNING);
+ }
+
+ _debug("cell dead");
+ ASSERTCMP(atomic_read(&cell->usage), ==, 0);
+ ASSERT(list_empty(&cell->servers));
+ ASSERT(list_empty(&cell->vl_list));
afs_proc_cell_remove(cell);
cachefs_relinquish_cookie(cell->cache, 0);
#endif
- up_write(&afs_cells_sem);
-
- BUG_ON(!list_empty(&cell->sv_list));
- BUG_ON(!list_empty(&cell->sv_graveyard));
- BUG_ON(!list_empty(&cell->vl_list));
- BUG_ON(!list_empty(&cell->vl_graveyard));
-
- /* finish cleaning up the cell */
+ key_put(cell->anonymous_key);
kfree(cell);
_leave(" [destroyed]");
-} /* end afs_cell_destroy() */
-
-/*****************************************************************************/
-/*
- * lookup the server record corresponding to an Rx RPC peer
- */
-int afs_server_find_by_peer(const struct rxrpc_peer *peer,
- struct afs_server **_server)
-{
- struct afs_server *server;
- struct afs_cell *cell;
-
- _enter("%p{a=%08x},", peer, ntohl(peer->addr.s_addr));
-
- /* search the cell list */
- read_lock(&afs_cells_lock);
-
- list_for_each_entry(cell, &afs_cells, link) {
-
- _debug("? cell %s",cell->name);
-
- write_lock(&cell->sv_lock);
-
- /* check the active list */
- list_for_each_entry(server, &cell->sv_list, link) {
- _debug("?? server %08x", ntohl(server->addr.s_addr));
-
- if (memcmp(&server->addr, &peer->addr,
- sizeof(struct in_addr)) == 0)
- goto found_server;
- }
+}
- /* check the inactive list */
- spin_lock(&cell->sv_gylock);
- list_for_each_entry(server, &cell->sv_graveyard, link) {
- _debug("?? dead server %08x",
- ntohl(server->addr.s_addr));
-
- if (memcmp(&server->addr, &peer->addr,
- sizeof(struct in_addr)) == 0)
- goto found_dead_server;
- }
- spin_unlock(&cell->sv_gylock);
-
- write_unlock(&cell->sv_lock);
- }
- read_unlock(&afs_cells_lock);
-
- _leave(" = -ENOENT");
- return -ENOENT;
-
- /* we found it in the graveyard - resurrect it */
- found_dead_server:
- list_move_tail(&server->link, &cell->sv_list);
- afs_get_server(server);
- afs_kafstimod_del_timer(&server->timeout);
- spin_unlock(&cell->sv_gylock);
- goto success;
-
- /* we found it - increment its ref count and return it */
- found_server:
- afs_get_server(server);
-
- success:
- write_unlock(&cell->sv_lock);
- read_unlock(&afs_cells_lock);
-
- *_server = server;
- _leave(" = 0 (s=%p c=%p)", server, cell);
- return 0;
-
-} /* end afs_server_find_by_peer() */
-
-/*****************************************************************************/
/*
* purge in-memory cell database on module unload or afs_init() failure
* - the timeout daemon is stopped before calling this
*/
void afs_cell_purge(void)
{
- struct afs_vlocation *vlocation;
struct afs_cell *cell;
_enter("");
afs_put_cell(afs_cell_root);
+ down_write(&afs_cells_sem);
+
while (!list_empty(&afs_cells)) {
cell = NULL;
_debug("PURGING CELL %s (%d)",
cell->name, atomic_read(&cell->usage));
- BUG_ON(!list_empty(&cell->sv_list));
- BUG_ON(!list_empty(&cell->vl_list));
-
- /* purge the cell's VL graveyard list */
- _debug(" - clearing VL graveyard");
-
- spin_lock(&cell->vl_gylock);
-
- while (!list_empty(&cell->vl_graveyard)) {
- vlocation = list_entry(cell->vl_graveyard.next,
- struct afs_vlocation,
- link);
- list_del_init(&vlocation->link);
-
- afs_kafstimod_del_timer(&vlocation->timeout);
-
- spin_unlock(&cell->vl_gylock);
-
- afs_vlocation_do_timeout(vlocation);
- /* TODO: race if move to use krxtimod instead
- * of kafstimod */
-
- spin_lock(&cell->vl_gylock);
- }
-
- spin_unlock(&cell->vl_gylock);
-
- /* purge the cell's server graveyard list */
- _debug(" - clearing server graveyard");
-
- spin_lock(&cell->sv_gylock);
-
- while (!list_empty(&cell->sv_graveyard)) {
- struct afs_server *server;
-
- server = list_entry(cell->sv_graveyard.next,
- struct afs_server, link);
- list_del_init(&server->link);
-
- afs_kafstimod_del_timer(&server->timeout);
-
- spin_unlock(&cell->sv_gylock);
-
- afs_server_do_timeout(server);
-
- spin_lock(&cell->sv_gylock);
- }
-
- spin_unlock(&cell->sv_gylock);
-
/* now the cell should be left with no references */
afs_cell_destroy(cell);
}
}
+ up_write(&afs_cells_sem);
_leave("");
-} /* end afs_cell_purge() */
-
-/*****************************************************************************/
-/*
- * match a cell record obtained from the cache
- */
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_cell_cache_match(void *target,
- const void *entry)
-{
- const struct afs_cache_cell *ccell = entry;
- struct afs_cell *cell = target;
-
- _enter("{%s},{%s}", ccell->name, cell->name);
-
- if (strncmp(ccell->name, cell->name, sizeof(ccell->name)) == 0) {
- _leave(" = SUCCESS");
- return CACHEFS_MATCH_SUCCESS;
- }
-
- _leave(" = FAILED");
- return CACHEFS_MATCH_FAILED;
-} /* end afs_cell_cache_match() */
-#endif
-
-/*****************************************************************************/
-/*
- * update a cell record in the cache
- */
-#ifdef AFS_CACHING_SUPPORT
-static void afs_cell_cache_update(void *source, void *entry)
-{
- struct afs_cache_cell *ccell = entry;
- struct afs_cell *cell = source;
-
- _enter("%p,%p", source, entry);
-
- strncpy(ccell->name, cell->name, sizeof(ccell->name));
-
- memcpy(ccell->vl_servers,
- cell->vl_addrs,
- min(sizeof(ccell->vl_servers), sizeof(cell->vl_addrs)));
-
-} /* end afs_cell_cache_update() */
-#endif
+}
+++ /dev/null
-/* cell.h: AFS cell record
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_CELL_H
-#define _LINUX_AFS_CELL_H
-
-#include "types.h"
-#include "cache.h"
-
-#define AFS_CELL_MAX_ADDRS 15
-
-extern volatile int afs_cells_being_purged; /* T when cells are being purged by rmmod */
-
-/*****************************************************************************/
-/*
- * entry in the cached cell catalogue
- */
-struct afs_cache_cell
-{
- char name[64]; /* cell name (padded with NULs) */
- struct in_addr vl_servers[15]; /* cached cell VL servers */
-};
-
-/*****************************************************************************/
-/*
- * AFS cell record
- */
-struct afs_cell
-{
- atomic_t usage;
- struct list_head link; /* main cell list link */
- struct list_head proc_link; /* /proc cell list link */
- struct proc_dir_entry *proc_dir; /* /proc dir for this cell */
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_cookie *cache; /* caching cookie */
-#endif
-
- /* server record management */
- rwlock_t sv_lock; /* active server list lock */
- struct list_head sv_list; /* active server list */
- struct list_head sv_graveyard; /* inactive server list */
- spinlock_t sv_gylock; /* inactive server list lock */
-
- /* volume location record management */
- struct rw_semaphore vl_sem; /* volume management serialisation semaphore */
- struct list_head vl_list; /* cell's active VL record list */
- struct list_head vl_graveyard; /* cell's inactive VL record list */
- spinlock_t vl_gylock; /* graveyard lock */
- unsigned short vl_naddrs; /* number of VL servers in addr list */
- unsigned short vl_curr_svix; /* current server index */
- struct in_addr vl_addrs[AFS_CELL_MAX_ADDRS]; /* cell VL server addresses */
-
- char name[0]; /* cell name - must go last */
-};
-
-extern int afs_cell_init(char *rootcell);
-
-extern int afs_cell_create(const char *name, char *vllist, struct afs_cell **_cell);
-
-extern int afs_cell_lookup(const char *name, unsigned nmsize, struct afs_cell **_cell);
-
-#define afs_get_cell(C) do { atomic_inc(&(C)->usage); } while(0)
-
-extern struct afs_cell *afs_get_cell_maybe(struct afs_cell **_cell);
-
-extern void afs_put_cell(struct afs_cell *cell);
-
-extern void afs_cell_purge(void);
-
-#endif /* _LINUX_AFS_CELL_H */
-/* cmservice.c: AFS Cache Manager Service
+/* AFS Cache Manager Service
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
-#include <linux/completion.h>
-#include "server.h"
-#include "cell.h"
-#include "transport.h"
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include "cmservice.h"
+#include <linux/ip.h>
#include "internal.h"
+#include "afs_cm.h"
-static unsigned afscm_usage; /* AFS cache manager usage count */
-static struct rw_semaphore afscm_sem; /* AFS cache manager start/stop semaphore */
-
-static int afscm_new_call(struct rxrpc_call *call);
-static void afscm_attention(struct rxrpc_call *call);
-static void afscm_error(struct rxrpc_call *call);
-static void afscm_aemap(struct rxrpc_call *call);
-
-static void _SRXAFSCM_CallBack(struct rxrpc_call *call);
-static void _SRXAFSCM_InitCallBackState(struct rxrpc_call *call);
-static void _SRXAFSCM_Probe(struct rxrpc_call *call);
-
-typedef void (*_SRXAFSCM_xxxx_t)(struct rxrpc_call *call);
-
-static const struct rxrpc_operation AFSCM_ops[] = {
- {
- .id = 204,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "CallBack",
- .user = _SRXAFSCM_CallBack,
- },
- {
- .id = 205,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "InitCallBackState",
- .user = _SRXAFSCM_InitCallBackState,
- },
- {
- .id = 206,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "Probe",
- .user = _SRXAFSCM_Probe,
- },
-#if 0
- {
- .id = 207,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "GetLock",
- .user = _SRXAFSCM_GetLock,
- },
- {
- .id = 208,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "GetCE",
- .user = _SRXAFSCM_GetCE,
- },
- {
- .id = 209,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "GetXStatsVersion",
- .user = _SRXAFSCM_GetXStatsVersion,
- },
- {
- .id = 210,
- .asize = RXRPC_APP_MARK_EOF,
- .name = "GetXStats",
- .user = _SRXAFSCM_GetXStats,
- }
-#endif
-};
+struct workqueue_struct *afs_cm_workqueue;
-static struct rxrpc_service AFSCM_service = {
- .name = "AFS/CM",
- .owner = THIS_MODULE,
- .link = LIST_HEAD_INIT(AFSCM_service.link),
- .new_call = afscm_new_call,
- .service_id = 1,
- .attn_func = afscm_attention,
- .error_func = afscm_error,
- .aemap_func = afscm_aemap,
- .ops_begin = &AFSCM_ops[0],
- .ops_end = &AFSCM_ops[ARRAY_SIZE(AFSCM_ops)],
-};
+static int afs_deliver_cb_init_call_back_state(struct afs_call *,
+ struct sk_buff *, bool);
+static int afs_deliver_cb_init_call_back_state3(struct afs_call *,
+ struct sk_buff *, bool);
+static int afs_deliver_cb_probe(struct afs_call *, struct sk_buff *, bool);
+static int afs_deliver_cb_callback(struct afs_call *, struct sk_buff *, bool);
+static int afs_deliver_cb_get_capabilities(struct afs_call *, struct sk_buff *,
+ bool);
+static void afs_cm_destructor(struct afs_call *);
-static DECLARE_COMPLETION(kafscmd_alive);
-static DECLARE_COMPLETION(kafscmd_dead);
-static DECLARE_WAIT_QUEUE_HEAD(kafscmd_sleepq);
-static LIST_HEAD(kafscmd_attention_list);
-static LIST_HEAD(afscm_calls);
-static DEFINE_SPINLOCK(afscm_calls_lock);
-static DEFINE_SPINLOCK(kafscmd_attention_lock);
-static int kafscmd_die;
-
-/*****************************************************************************/
/*
- * AFS Cache Manager kernel thread
+ * CB.CallBack operation type
*/
-static int kafscmd(void *arg)
-{
- DECLARE_WAITQUEUE(myself, current);
-
- struct rxrpc_call *call;
- _SRXAFSCM_xxxx_t func;
- int die;
-
- printk(KERN_INFO "kAFS: Started kafscmd %d\n", current->pid);
-
- daemonize("kafscmd");
-
- complete(&kafscmd_alive);
-
- /* loop around looking for things to attend to */
- do {
- if (list_empty(&kafscmd_attention_list)) {
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&kafscmd_sleepq, &myself);
-
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (!list_empty(&kafscmd_attention_list) ||
- signal_pending(current) ||
- kafscmd_die)
- break;
-
- schedule();
- }
-
- remove_wait_queue(&kafscmd_sleepq, &myself);
- set_current_state(TASK_RUNNING);
- }
-
- die = kafscmd_die;
-
- /* dequeue the next call requiring attention */
- call = NULL;
- spin_lock(&kafscmd_attention_lock);
-
- if (!list_empty(&kafscmd_attention_list)) {
- call = list_entry(kafscmd_attention_list.next,
- struct rxrpc_call,
- app_attn_link);
- list_del_init(&call->app_attn_link);
- die = 0;
- }
-
- spin_unlock(&kafscmd_attention_lock);
-
- if (call) {
- /* act upon it */
- _debug("@@@ Begin Attend Call %p", call);
-
- func = call->app_user;
- if (func)
- func(call);
-
- rxrpc_put_call(call);
-
- _debug("@@@ End Attend Call %p", call);
- }
-
- } while(!die);
-
- /* and that's all */
- complete_and_exit(&kafscmd_dead, 0);
-
-} /* end kafscmd() */
+static const struct afs_call_type afs_SRXCBCallBack = {
+ .name = "CB.CallBack",
+ .deliver = afs_deliver_cb_callback,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_cm_destructor,
+};
-/*****************************************************************************/
/*
- * handle a call coming in to the cache manager
- * - if I want to keep the call, I must increment its usage count
- * - the return value will be negated and passed back in an abort packet if
- * non-zero
- * - serialised by virtue of there only being one krxiod
+ * CB.InitCallBackState operation type
*/
-static int afscm_new_call(struct rxrpc_call *call)
-{
- _enter("%p{cid=%u u=%d}",
- call, ntohl(call->call_id), atomic_read(&call->usage));
-
- rxrpc_get_call(call);
-
- /* add to my current call list */
- spin_lock(&afscm_calls_lock);
- list_add(&call->app_link,&afscm_calls);
- spin_unlock(&afscm_calls_lock);
-
- _leave(" = 0");
- return 0;
-
-} /* end afscm_new_call() */
+static const struct afs_call_type afs_SRXCBInitCallBackState = {
+ .name = "CB.InitCallBackState",
+ .deliver = afs_deliver_cb_init_call_back_state,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_cm_destructor,
+};
-/*****************************************************************************/
/*
- * queue on the kafscmd queue for attention
+ * CB.InitCallBackState3 operation type
*/
-static void afscm_attention(struct rxrpc_call *call)
-{
- _enter("%p{cid=%u u=%d}",
- call, ntohl(call->call_id), atomic_read(&call->usage));
-
- spin_lock(&kafscmd_attention_lock);
-
- if (list_empty(&call->app_attn_link)) {
- list_add_tail(&call->app_attn_link, &kafscmd_attention_list);
- rxrpc_get_call(call);
- }
-
- spin_unlock(&kafscmd_attention_lock);
-
- wake_up(&kafscmd_sleepq);
-
- _leave(" {u=%d}", atomic_read(&call->usage));
-} /* end afscm_attention() */
+static const struct afs_call_type afs_SRXCBInitCallBackState3 = {
+ .name = "CB.InitCallBackState3",
+ .deliver = afs_deliver_cb_init_call_back_state3,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_cm_destructor,
+};
-/*****************************************************************************/
/*
- * handle my call being aborted
- * - clean up, dequeue and put my ref to the call
+ * CB.Probe operation type
*/
-static void afscm_error(struct rxrpc_call *call)
-{
- int removed;
-
- _enter("%p{est=%s ac=%u er=%d}",
- call,
- rxrpc_call_error_states[call->app_err_state],
- call->app_abort_code,
- call->app_errno);
-
- spin_lock(&kafscmd_attention_lock);
-
- if (list_empty(&call->app_attn_link)) {
- list_add_tail(&call->app_attn_link, &kafscmd_attention_list);
- rxrpc_get_call(call);
- }
-
- spin_unlock(&kafscmd_attention_lock);
-
- removed = 0;
- spin_lock(&afscm_calls_lock);
- if (!list_empty(&call->app_link)) {
- list_del_init(&call->app_link);
- removed = 1;
- }
- spin_unlock(&afscm_calls_lock);
-
- if (removed)
- rxrpc_put_call(call);
-
- wake_up(&kafscmd_sleepq);
+static const struct afs_call_type afs_SRXCBProbe = {
+ .name = "CB.Probe",
+ .deliver = afs_deliver_cb_probe,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_cm_destructor,
+};
- _leave("");
-} /* end afscm_error() */
+/*
+ * CB.GetCapabilities operation type
+ */
+static const struct afs_call_type afs_SRXCBGetCapabilites = {
+ .name = "CB.GetCapabilities",
+ .deliver = afs_deliver_cb_get_capabilities,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_cm_destructor,
+};
-/*****************************************************************************/
/*
- * map afs abort codes to/from Linux error codes
- * - called with call->lock held
+ * route an incoming cache manager call
+ * - return T if supported, F if not
*/
-static void afscm_aemap(struct rxrpc_call *call)
+bool afs_cm_incoming_call(struct afs_call *call)
{
- switch (call->app_err_state) {
- case RXRPC_ESTATE_LOCAL_ABORT:
- call->app_abort_code = -call->app_errno;
- break;
- case RXRPC_ESTATE_PEER_ABORT:
- call->app_errno = -ECONNABORTED;
- break;
+ u32 operation_id = ntohl(call->operation_ID);
+
+ _enter("{CB.OP %u}", operation_id);
+
+ switch (operation_id) {
+ case CBCallBack:
+ call->type = &afs_SRXCBCallBack;
+ return true;
+ case CBInitCallBackState:
+ call->type = &afs_SRXCBInitCallBackState;
+ return true;
+ case CBInitCallBackState3:
+ call->type = &afs_SRXCBInitCallBackState3;
+ return true;
+ case CBProbe:
+ call->type = &afs_SRXCBProbe;
+ return true;
+ case CBGetCapabilities:
+ call->type = &afs_SRXCBGetCapabilites;
+ return true;
default:
- break;
+ return false;
}
-} /* end afscm_aemap() */
+}
-/*****************************************************************************/
/*
- * start the cache manager service if not already started
+ * clean up a cache manager call
*/
-int afscm_start(void)
+static void afs_cm_destructor(struct afs_call *call)
{
- int ret;
-
- down_write(&afscm_sem);
- if (!afscm_usage) {
- ret = kernel_thread(kafscmd, NULL, 0);
- if (ret < 0)
- goto out;
-
- wait_for_completion(&kafscmd_alive);
-
- ret = rxrpc_add_service(afs_transport, &AFSCM_service);
- if (ret < 0)
- goto kill;
-
- afs_kafstimod_add_timer(&afs_mntpt_expiry_timer,
- afs_mntpt_expiry_timeout * HZ);
- }
-
- afscm_usage++;
- up_write(&afscm_sem);
-
- return 0;
-
- kill:
- kafscmd_die = 1;
- wake_up(&kafscmd_sleepq);
- wait_for_completion(&kafscmd_dead);
-
- out:
- up_write(&afscm_sem);
- return ret;
+ _enter("");
-} /* end afscm_start() */
+ afs_put_server(call->server);
+ call->server = NULL;
+ kfree(call->buffer);
+ call->buffer = NULL;
+}
-/*****************************************************************************/
/*
- * stop the cache manager service
+ * allow the fileserver to see if the cache manager is still alive
*/
-void afscm_stop(void)
+static void SRXAFSCB_CallBack(struct work_struct *work)
{
- struct rxrpc_call *call;
+ struct afs_call *call = container_of(work, struct afs_call, work);
- down_write(&afscm_sem);
+ _enter("");
- BUG_ON(afscm_usage == 0);
- afscm_usage--;
+ /* be sure to send the reply *before* attempting to spam the AFS server
+ * with FSFetchStatus requests on the vnodes with broken callbacks lest
+ * the AFS server get into a vicious cycle of trying to break further
+ * callbacks because it hadn't received completion of the CBCallBack op
+ * yet */
+ afs_send_empty_reply(call);
- if (afscm_usage == 0) {
- /* don't want more incoming calls */
- rxrpc_del_service(afs_transport, &AFSCM_service);
-
- /* abort any calls I've still got open (the afscm_error() will
- * dequeue them) */
- spin_lock(&afscm_calls_lock);
- while (!list_empty(&afscm_calls)) {
- call = list_entry(afscm_calls.next,
- struct rxrpc_call,
- app_link);
+ afs_break_callbacks(call->server, call->count, call->request);
+ _leave("");
+}
- list_del_init(&call->app_link);
- rxrpc_get_call(call);
- spin_unlock(&afscm_calls_lock);
+/*
+ * deliver request data to a CB.CallBack call
+ */
+static int afs_deliver_cb_callback(struct afs_call *call, struct sk_buff *skb,
+ bool last)
+{
+ struct afs_callback *cb;
+ struct afs_server *server;
+ struct in_addr addr;
+ __be32 *bp;
+ u32 tmp;
+ int ret, loop;
+
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
+
+ switch (call->unmarshall) {
+ case 0:
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the FID array and its count in two steps */
+ case 1:
+ _debug("extract FID count");
+ ret = afs_extract_data(call, skb, last, &call->tmp, 4);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
- rxrpc_call_abort(call, -ESRCH); /* abort, dequeue and
- * put */
+ call->count = ntohl(call->tmp);
+ _debug("FID count: %u", call->count);
+ if (call->count > AFSCBMAX)
+ return -EBADMSG;
+
+ call->buffer = kmalloc(call->count * 3 * 4, GFP_KERNEL);
+ if (!call->buffer)
+ return -ENOMEM;
+ call->offset = 0;
+ call->unmarshall++;
+
+ case 2:
+ _debug("extract FID array");
+ ret = afs_extract_data(call, skb, last, call->buffer,
+ call->count * 3 * 4);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
- _debug("nuking active call %08x.%d",
- ntohl(call->conn->conn_id),
- ntohl(call->call_id));
- rxrpc_put_call(call);
- rxrpc_put_call(call);
+ _debug("unmarshall FID array");
+ call->request = kcalloc(call->count,
+ sizeof(struct afs_callback),
+ GFP_KERNEL);
+ if (!call->request)
+ return -ENOMEM;
+
+ cb = call->request;
+ bp = call->buffer;
+ for (loop = call->count; loop > 0; loop--, cb++) {
+ cb->fid.vid = ntohl(*bp++);
+ cb->fid.vnode = ntohl(*bp++);
+ cb->fid.unique = ntohl(*bp++);
+ cb->type = AFSCM_CB_UNTYPED;
+ }
- spin_lock(&afscm_calls_lock);
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the callback array and its count in two steps */
+ case 3:
+ _debug("extract CB count");
+ ret = afs_extract_data(call, skb, last, &call->tmp, 4);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
}
- spin_unlock(&afscm_calls_lock);
- /* get rid of my daemon */
- kafscmd_die = 1;
- wake_up(&kafscmd_sleepq);
- wait_for_completion(&kafscmd_dead);
+ tmp = ntohl(call->tmp);
+ _debug("CB count: %u", tmp);
+ if (tmp != call->count && tmp != 0)
+ return -EBADMSG;
+ call->offset = 0;
+ call->unmarshall++;
+ if (tmp == 0)
+ goto empty_cb_array;
+
+ case 4:
+ _debug("extract CB array");
+ ret = afs_extract_data(call, skb, last, call->request,
+ call->count * 3 * 4);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
- /* dispose of any calls waiting for attention */
- spin_lock(&kafscmd_attention_lock);
- while (!list_empty(&kafscmd_attention_list)) {
- call = list_entry(kafscmd_attention_list.next,
- struct rxrpc_call,
- app_attn_link);
+ _debug("unmarshall CB array");
+ cb = call->request;
+ bp = call->buffer;
+ for (loop = call->count; loop > 0; loop--, cb++) {
+ cb->version = ntohl(*bp++);
+ cb->expiry = ntohl(*bp++);
+ cb->type = ntohl(*bp++);
+ }
- list_del_init(&call->app_attn_link);
- spin_unlock(&kafscmd_attention_lock);
+ empty_cb_array:
+ call->offset = 0;
+ call->unmarshall++;
- rxrpc_put_call(call);
+ case 5:
+ _debug("trailer");
+ if (skb->len != 0)
+ return -EBADMSG;
+ break;
+ }
- spin_lock(&kafscmd_attention_lock);
- }
- spin_unlock(&kafscmd_attention_lock);
+ if (!last)
+ return 0;
- afs_kafstimod_del_timer(&afs_mntpt_expiry_timer);
- }
+ call->state = AFS_CALL_REPLYING;
- up_write(&afscm_sem);
+ /* we'll need the file server record as that tells us which set of
+ * vnodes to operate upon */
+ memcpy(&addr, &ip_hdr(skb)->saddr, 4);
+ server = afs_find_server(&addr);
+ if (!server)
+ return -ENOTCONN;
+ call->server = server;
-} /* end afscm_stop() */
+ INIT_WORK(&call->work, SRXAFSCB_CallBack);
+ schedule_work(&call->work);
+ return 0;
+}
-/*****************************************************************************/
/*
- * handle the fileserver breaking a set of callbacks
+ * allow the fileserver to request callback state (re-)initialisation
*/
-static void _SRXAFSCM_CallBack(struct rxrpc_call *call)
+static void SRXAFSCB_InitCallBackState(struct work_struct *work)
{
- struct afs_server *server;
- size_t count, qty, tmp;
- int ret = 0, removed;
-
- _enter("%p{acs=%s}", call, rxrpc_call_states[call->app_call_state]);
-
- server = afs_server_get_from_peer(call->conn->peer);
-
- switch (call->app_call_state) {
- /* we've received the last packet
- * - drain all the data from the call and send the reply
- */
- case RXRPC_CSTATE_SRVR_GOT_ARGS:
- ret = -EBADMSG;
- qty = call->app_ready_qty;
- if (qty < 8 || qty > 50 * (6 * 4) + 8)
- break;
-
- {
- struct afs_callback *cb, *pcb;
- int loop;
- __be32 *fp, *bp;
-
- fp = rxrpc_call_alloc_scratch(call, qty);
-
- /* drag the entire argument block out to the scratch
- * space */
- ret = rxrpc_call_read_data(call, fp, qty, 0);
- if (ret < 0)
- break;
-
- /* and unmarshall the parameter block */
- ret = -EBADMSG;
- count = ntohl(*fp++);
- if (count>AFSCBMAX ||
- (count * (3 * 4) + 8 != qty &&
- count * (6 * 4) + 8 != qty))
- break;
-
- bp = fp + count*3;
- tmp = ntohl(*bp++);
- if (tmp > 0 && tmp != count)
- break;
- if (tmp == 0)
- bp = NULL;
-
- pcb = cb = rxrpc_call_alloc_scratch_s(
- call, struct afs_callback);
-
- for (loop = count - 1; loop >= 0; loop--) {
- pcb->fid.vid = ntohl(*fp++);
- pcb->fid.vnode = ntohl(*fp++);
- pcb->fid.unique = ntohl(*fp++);
- if (bp) {
- pcb->version = ntohl(*bp++);
- pcb->expiry = ntohl(*bp++);
- pcb->type = ntohl(*bp++);
- }
- else {
- pcb->version = 0;
- pcb->expiry = 0;
- pcb->type = AFSCM_CB_UNTYPED;
- }
- pcb++;
- }
-
- /* invoke the actual service routine */
- ret = SRXAFSCM_CallBack(server, count, cb);
- if (ret < 0)
- break;
- }
+ struct afs_call *call = container_of(work, struct afs_call, work);
- /* send the reply */
- ret = rxrpc_call_write_data(call, 0, NULL, RXRPC_LAST_PACKET,
- GFP_KERNEL, 0, &count);
- if (ret < 0)
- break;
- break;
-
- /* operation complete */
- case RXRPC_CSTATE_COMPLETE:
- call->app_user = NULL;
- removed = 0;
- spin_lock(&afscm_calls_lock);
- if (!list_empty(&call->app_link)) {
- list_del_init(&call->app_link);
- removed = 1;
- }
- spin_unlock(&afscm_calls_lock);
+ _enter("{%p}", call->server);
- if (removed)
- rxrpc_put_call(call);
- break;
+ afs_init_callback_state(call->server);
+ afs_send_empty_reply(call);
+ _leave("");
+}
- /* operation terminated on error */
- case RXRPC_CSTATE_ERROR:
- call->app_user = NULL;
- break;
+/*
+ * deliver request data to a CB.InitCallBackState call
+ */
+static int afs_deliver_cb_init_call_back_state(struct afs_call *call,
+ struct sk_buff *skb,
+ bool last)
+{
+ struct afs_server *server;
+ struct in_addr addr;
- default:
- break;
- }
+ _enter(",{%u},%d", skb->len, last);
- if (ret < 0)
- rxrpc_call_abort(call, ret);
+ if (skb->len > 0)
+ return -EBADMSG;
+ if (!last)
+ return 0;
- afs_put_server(server);
+ /* no unmarshalling required */
+ call->state = AFS_CALL_REPLYING;
- _leave(" = %d", ret);
+ /* we'll need the file server record as that tells us which set of
+ * vnodes to operate upon */
+ memcpy(&addr, &ip_hdr(skb)->saddr, 4);
+ server = afs_find_server(&addr);
+ if (!server)
+ return -ENOTCONN;
+ call->server = server;
-} /* end _SRXAFSCM_CallBack() */
+ INIT_WORK(&call->work, SRXAFSCB_InitCallBackState);
+ schedule_work(&call->work);
+ return 0;
+}
-/*****************************************************************************/
/*
- * handle the fileserver asking us to initialise our callback state
+ * deliver request data to a CB.InitCallBackState3 call
*/
-static void _SRXAFSCM_InitCallBackState(struct rxrpc_call *call)
+static int afs_deliver_cb_init_call_back_state3(struct afs_call *call,
+ struct sk_buff *skb,
+ bool last)
{
struct afs_server *server;
- size_t count;
- int ret = 0, removed;
+ struct in_addr addr;
- _enter("%p{acs=%s}", call, rxrpc_call_states[call->app_call_state]);
+ _enter(",{%u},%d", skb->len, last);
- server = afs_server_get_from_peer(call->conn->peer);
+ if (!last)
+ return 0;
- switch (call->app_call_state) {
- /* we've received the last packet - drain all the data from the
- * call */
- case RXRPC_CSTATE_SRVR_GOT_ARGS:
- /* shouldn't be any args */
- ret = -EBADMSG;
- break;
-
- /* send the reply when asked for it */
- case RXRPC_CSTATE_SRVR_SND_REPLY:
- /* invoke the actual service routine */
- ret = SRXAFSCM_InitCallBackState(server);
- if (ret < 0)
- break;
-
- ret = rxrpc_call_write_data(call, 0, NULL, RXRPC_LAST_PACKET,
- GFP_KERNEL, 0, &count);
- if (ret < 0)
- break;
- break;
+ /* no unmarshalling required */
+ call->state = AFS_CALL_REPLYING;
- /* operation complete */
- case RXRPC_CSTATE_COMPLETE:
- call->app_user = NULL;
- removed = 0;
- spin_lock(&afscm_calls_lock);
- if (!list_empty(&call->app_link)) {
- list_del_init(&call->app_link);
- removed = 1;
- }
- spin_unlock(&afscm_calls_lock);
+ /* we'll need the file server record as that tells us which set of
+ * vnodes to operate upon */
+ memcpy(&addr, &ip_hdr(skb)->saddr, 4);
+ server = afs_find_server(&addr);
+ if (!server)
+ return -ENOTCONN;
+ call->server = server;
- if (removed)
- rxrpc_put_call(call);
- break;
-
- /* operation terminated on error */
- case RXRPC_CSTATE_ERROR:
- call->app_user = NULL;
- break;
-
- default:
- break;
- }
-
- if (ret < 0)
- rxrpc_call_abort(call, ret);
-
- afs_put_server(server);
+ INIT_WORK(&call->work, SRXAFSCB_InitCallBackState);
+ schedule_work(&call->work);
+ return 0;
+}
- _leave(" = %d", ret);
+/*
+ * allow the fileserver to see if the cache manager is still alive
+ */
+static void SRXAFSCB_Probe(struct work_struct *work)
+{
+ struct afs_call *call = container_of(work, struct afs_call, work);
-} /* end _SRXAFSCM_InitCallBackState() */
+ _enter("");
+ afs_send_empty_reply(call);
+ _leave("");
+}
-/*****************************************************************************/
/*
- * handle a probe from a fileserver
+ * deliver request data to a CB.Probe call
*/
-static void _SRXAFSCM_Probe(struct rxrpc_call *call)
+static int afs_deliver_cb_probe(struct afs_call *call, struct sk_buff *skb,
+ bool last)
{
- struct afs_server *server;
- size_t count;
- int ret = 0, removed;
-
- _enter("%p{acs=%s}", call, rxrpc_call_states[call->app_call_state]);
+ _enter(",{%u},%d", skb->len, last);
- server = afs_server_get_from_peer(call->conn->peer);
+ if (skb->len > 0)
+ return -EBADMSG;
+ if (!last)
+ return 0;
- switch (call->app_call_state) {
- /* we've received the last packet - drain all the data from the
- * call */
- case RXRPC_CSTATE_SRVR_GOT_ARGS:
- /* shouldn't be any args */
- ret = -EBADMSG;
- break;
+ /* no unmarshalling required */
+ call->state = AFS_CALL_REPLYING;
- /* send the reply when asked for it */
- case RXRPC_CSTATE_SRVR_SND_REPLY:
- /* invoke the actual service routine */
- ret = SRXAFSCM_Probe(server);
- if (ret < 0)
- break;
-
- ret = rxrpc_call_write_data(call, 0, NULL, RXRPC_LAST_PACKET,
- GFP_KERNEL, 0, &count);
- if (ret < 0)
- break;
- break;
+ INIT_WORK(&call->work, SRXAFSCB_Probe);
+ schedule_work(&call->work);
+ return 0;
+}
- /* operation complete */
- case RXRPC_CSTATE_COMPLETE:
- call->app_user = NULL;
- removed = 0;
- spin_lock(&afscm_calls_lock);
- if (!list_empty(&call->app_link)) {
- list_del_init(&call->app_link);
- removed = 1;
+/*
+ * allow the fileserver to ask about the cache manager's capabilities
+ */
+static void SRXAFSCB_GetCapabilities(struct work_struct *work)
+{
+ struct afs_interface *ifs;
+ struct afs_call *call = container_of(work, struct afs_call, work);
+ int loop, nifs;
+
+ struct {
+ struct /* InterfaceAddr */ {
+ __be32 nifs;
+ __be32 uuid[11];
+ __be32 ifaddr[32];
+ __be32 netmask[32];
+ __be32 mtu[32];
+ } ia;
+ struct /* Capabilities */ {
+ __be32 capcount;
+ __be32 caps[1];
+ } cap;
+ } reply;
+
+ _enter("");
+
+ nifs = 0;
+ ifs = kcalloc(32, sizeof(*ifs), GFP_KERNEL);
+ if (ifs) {
+ nifs = afs_get_ipv4_interfaces(ifs, 32, false);
+ if (nifs < 0) {
+ kfree(ifs);
+ ifs = NULL;
+ nifs = 0;
}
- spin_unlock(&afscm_calls_lock);
+ }
- if (removed)
- rxrpc_put_call(call);
- break;
+ memset(&reply, 0, sizeof(reply));
+ reply.ia.nifs = htonl(nifs);
+
+ reply.ia.uuid[0] = htonl(afs_uuid.time_low);
+ reply.ia.uuid[1] = htonl(afs_uuid.time_mid);
+ reply.ia.uuid[2] = htonl(afs_uuid.time_hi_and_version);
+ reply.ia.uuid[3] = htonl((s8) afs_uuid.clock_seq_hi_and_reserved);
+ reply.ia.uuid[4] = htonl((s8) afs_uuid.clock_seq_low);
+ for (loop = 0; loop < 6; loop++)
+ reply.ia.uuid[loop + 5] = htonl((s8) afs_uuid.node[loop]);
+
+ if (ifs) {
+ for (loop = 0; loop < nifs; loop++) {
+ reply.ia.ifaddr[loop] = ifs[loop].address.s_addr;
+ reply.ia.netmask[loop] = ifs[loop].netmask.s_addr;
+ reply.ia.mtu[loop] = htonl(ifs[loop].mtu);
+ }
+ }
- /* operation terminated on error */
- case RXRPC_CSTATE_ERROR:
- call->app_user = NULL;
- break;
+ reply.cap.capcount = htonl(1);
+ reply.cap.caps[0] = htonl(AFS_CAP_ERROR_TRANSLATION);
+ afs_send_simple_reply(call, &reply, sizeof(reply));
- default:
- break;
- }
+ _leave("");
+}
- if (ret < 0)
- rxrpc_call_abort(call, ret);
+/*
+ * deliver request data to a CB.GetCapabilities call
+ */
+static int afs_deliver_cb_get_capabilities(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ _enter(",{%u},%d", skb->len, last);
- afs_put_server(server);
+ if (skb->len > 0)
+ return -EBADMSG;
+ if (!last)
+ return 0;
- _leave(" = %d", ret);
+ /* no unmarshalling required */
+ call->state = AFS_CALL_REPLYING;
-} /* end _SRXAFSCM_Probe() */
+ INIT_WORK(&call->work, SRXAFSCB_GetCapabilities);
+ schedule_work(&call->work);
+ return 0;
+}
+++ /dev/null
-/* cmservice.h: AFS Cache Manager Service declarations
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_CMSERVICE_H
-#define _LINUX_AFS_CMSERVICE_H
-
-#include <rxrpc/transport.h>
-#include "types.h"
-
-/* cache manager start/stop */
-extern int afscm_start(void);
-extern void afscm_stop(void);
-
-/* cache manager server functions */
-extern int SRXAFSCM_InitCallBackState(struct afs_server *server);
-extern int SRXAFSCM_CallBack(struct afs_server *server,
- size_t count,
- struct afs_callback callbacks[]);
-extern int SRXAFSCM_Probe(struct afs_server *server);
-
-#endif /* _LINUX_AFS_CMSERVICE_H */
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
-#include "vnode.h"
-#include "volume.h"
-#include <rxrpc/call.h>
-#include "super.h"
+#include <linux/ctype.h>
#include "internal.h"
-static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd);
+static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
+ struct nameidata *nd);
static int afs_dir_open(struct inode *inode, struct file *file);
-static int afs_dir_readdir(struct file *file, void *dirent, filldir_t filldir);
+static int afs_readdir(struct file *file, void *dirent, filldir_t filldir);
static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd);
static int afs_d_delete(struct dentry *dentry);
-static int afs_dir_lookup_filldir(void *_cookie, const char *name, int nlen,
+static void afs_d_release(struct dentry *dentry);
+static int afs_lookup_filldir(void *_cookie, const char *name, int nlen,
loff_t fpos, u64 ino, unsigned dtype);
+static int afs_create(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd);
+static int afs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+static int afs_rmdir(struct inode *dir, struct dentry *dentry);
+static int afs_unlink(struct inode *dir, struct dentry *dentry);
+static int afs_link(struct dentry *from, struct inode *dir,
+ struct dentry *dentry);
+static int afs_symlink(struct inode *dir, struct dentry *dentry,
+ const char *content);
+static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry);
const struct file_operations afs_dir_file_operations = {
.open = afs_dir_open,
- .readdir = afs_dir_readdir,
+ .release = afs_release,
+ .readdir = afs_readdir,
};
const struct inode_operations afs_dir_inode_operations = {
- .lookup = afs_dir_lookup,
+ .create = afs_create,
+ .lookup = afs_lookup,
+ .link = afs_link,
+ .unlink = afs_unlink,
+ .symlink = afs_symlink,
+ .mkdir = afs_mkdir,
+ .rmdir = afs_rmdir,
+ .rename = afs_rename,
+ .permission = afs_permission,
.getattr = afs_inode_getattr,
-#if 0 /* TODO */
- .create = afs_dir_create,
- .link = afs_dir_link,
- .unlink = afs_dir_unlink,
- .symlink = afs_dir_symlink,
- .mkdir = afs_dir_mkdir,
- .rmdir = afs_dir_rmdir,
- .mknod = afs_dir_mknod,
- .rename = afs_dir_rename,
-#endif
};
static struct dentry_operations afs_fs_dentry_operations = {
.d_revalidate = afs_d_revalidate,
.d_delete = afs_d_delete,
+ .d_release = afs_d_release,
};
#define AFS_DIR_HASHTBL_SIZE 128
union afs_dir_block blocks[PAGE_SIZE / sizeof(union afs_dir_block)];
};
-struct afs_dir_lookup_cookie {
+struct afs_lookup_cookie {
struct afs_fid fid;
const char *name;
size_t nlen;
int found;
};
-/*****************************************************************************/
/*
* check that a directory page is valid
*/
if (qty == 0)
goto error;
- if (page->index==0 && qty!=ntohs(dbuf->blocks[0].pagehdr.npages)) {
+ if (page->index == 0 && qty != ntohs(dbuf->blocks[0].pagehdr.npages)) {
printk("kAFS: %s(%lu): wrong number of dir blocks %d!=%hu\n",
- __FUNCTION__,dir->i_ino,qty,ntohs(dbuf->blocks[0].pagehdr.npages));
+ __FUNCTION__, dir->i_ino, qty,
+ ntohs(dbuf->blocks[0].pagehdr.npages));
goto error;
}
#endif
SetPageChecked(page);
return;
- error:
+error:
SetPageChecked(page);
SetPageError(page);
+}
-} /* end afs_dir_check_page() */
-
-/*****************************************************************************/
/*
* discard a page cached in the pagecache
*/
{
kunmap(page);
page_cache_release(page);
+}
-} /* end afs_dir_put_page() */
-
-/*****************************************************************************/
/*
* get a page into the pagecache
*/
-static struct page *afs_dir_get_page(struct inode *dir, unsigned long index)
+static struct page *afs_dir_get_page(struct inode *dir, unsigned long index,
+ struct key *key)
{
struct page *page;
+ struct file file = {
+ .private_data = key,
+ };
_enter("{%lu},%lu", dir->i_ino, index);
- page = read_mapping_page(dir->i_mapping, index, NULL);
+ page = read_mapping_page(dir->i_mapping, index, &file);
if (!IS_ERR(page)) {
wait_on_page_locked(page);
kmap(page);
}
return page;
- fail:
+fail:
afs_dir_put_page(page);
+ _leave(" = -EIO");
return ERR_PTR(-EIO);
-} /* end afs_dir_get_page() */
+}
-/*****************************************************************************/
/*
* open an AFS directory file
*/
BUILD_BUG_ON(sizeof(union afs_dir_block) != 2048);
BUILD_BUG_ON(sizeof(union afs_dirent) != 32);
- if (AFS_FS_I(inode)->flags & AFS_VNODE_DELETED)
+ if (test_bit(AFS_VNODE_DELETED, &AFS_FS_I(inode)->flags))
return -ENOENT;
- _leave(" = 0");
- return 0;
-
-} /* end afs_dir_open() */
+ return afs_open(inode, file);
+}
-/*****************************************************************************/
/*
* deal with one block in an AFS directory
*/
/* skip entries marked unused in the bitmap */
if (!(block->pagehdr.bitmap[offset / 8] &
(1 << (offset % 8)))) {
- _debug("ENT[%Zu.%u]: unused\n",
+ _debug("ENT[%Zu.%u]: unused",
blkoff / sizeof(union afs_dir_block), offset);
if (offset >= curr)
*fpos = blkoff +
sizeof(*block) -
offset * sizeof(union afs_dirent));
- _debug("ENT[%Zu.%u]: %s %Zu \"%s\"\n",
+ _debug("ENT[%Zu.%u]: %s %Zu \"%s\"",
blkoff / sizeof(union afs_dir_block), offset,
(offset < curr ? "skip" : "fill"),
nlen, dire->u.name);
if (next >= AFS_DIRENT_PER_BLOCK) {
_debug("ENT[%Zu.%u]:"
" %u travelled beyond end dir block"
- " (len %u/%Zu)\n",
+ " (len %u/%Zu)",
blkoff / sizeof(union afs_dir_block),
offset, next, tmp, nlen);
return -EIO;
if (!(block->pagehdr.bitmap[next / 8] &
(1 << (next % 8)))) {
_debug("ENT[%Zu.%u]:"
- " %u unmarked extension (len %u/%Zu)\n",
+ " %u unmarked extension (len %u/%Zu)",
blkoff / sizeof(union afs_dir_block),
offset, next, tmp, nlen);
return -EIO;
}
- _debug("ENT[%Zu.%u]: ext %u/%Zu\n",
+ _debug("ENT[%Zu.%u]: ext %u/%Zu",
blkoff / sizeof(union afs_dir_block),
next, tmp, nlen);
next++;
nlen,
blkoff + offset * sizeof(union afs_dirent),
ntohl(dire->u.vnode),
- filldir == afs_dir_lookup_filldir ?
+ filldir == afs_lookup_filldir ?
ntohl(dire->u.unique) : DT_UNKNOWN);
if (ret < 0) {
_leave(" = 0 [full]");
_leave(" = 1 [more]");
return 1;
-} /* end afs_dir_iterate_block() */
+}
-/*****************************************************************************/
/*
- * read an AFS directory
+ * iterate through the data blob that lists the contents of an AFS directory
*/
static int afs_dir_iterate(struct inode *dir, unsigned *fpos, void *cookie,
- filldir_t filldir)
+ filldir_t filldir, struct key *key)
{
- union afs_dir_block *dblock;
+ union afs_dir_block *dblock;
struct afs_dir_page *dbuf;
struct page *page;
unsigned blkoff, limit;
_enter("{%lu},%u,,", dir->i_ino, *fpos);
- if (AFS_FS_I(dir)->flags & AFS_VNODE_DELETED) {
+ if (test_bit(AFS_VNODE_DELETED, &AFS_FS_I(dir)->flags)) {
_leave(" = -ESTALE");
return -ESTALE;
}
blkoff = *fpos & ~(sizeof(union afs_dir_block) - 1);
/* fetch the appropriate page from the directory */
- page = afs_dir_get_page(dir, blkoff / PAGE_SIZE);
+ page = afs_dir_get_page(dir, blkoff / PAGE_SIZE, key);
if (IS_ERR(page)) {
ret = PTR_ERR(page);
break;
ret = 0;
}
- out:
+out:
_leave(" = %d", ret);
return ret;
-} /* end afs_dir_iterate() */
+}
-/*****************************************************************************/
/*
* read an AFS directory
*/
-static int afs_dir_readdir(struct file *file, void *cookie, filldir_t filldir)
+static int afs_readdir(struct file *file, void *cookie, filldir_t filldir)
{
unsigned fpos;
int ret;
- _enter("{%Ld,{%lu}}", file->f_pos, file->f_path.dentry->d_inode->i_ino);
+ _enter("{%Ld,{%lu}}",
+ file->f_pos, file->f_path.dentry->d_inode->i_ino);
+
+ ASSERT(file->private_data != NULL);
fpos = file->f_pos;
- ret = afs_dir_iterate(file->f_path.dentry->d_inode, &fpos, cookie, filldir);
+ ret = afs_dir_iterate(file->f_path.dentry->d_inode, &fpos,
+ cookie, filldir, file->private_data);
file->f_pos = fpos;
_leave(" = %d", ret);
return ret;
-} /* end afs_dir_readdir() */
+}
-/*****************************************************************************/
/*
* search the directory for a name
* - if afs_dir_iterate_block() spots this function, it'll pass the FID
* uniquifier through dtype
*/
-static int afs_dir_lookup_filldir(void *_cookie, const char *name, int nlen,
- loff_t fpos, u64 ino, unsigned dtype)
+static int afs_lookup_filldir(void *_cookie, const char *name, int nlen,
+ loff_t fpos, u64 ino, unsigned dtype)
{
- struct afs_dir_lookup_cookie *cookie = _cookie;
+ struct afs_lookup_cookie *cookie = _cookie;
- _enter("{%s,%Zu},%s,%u,,%lu,%u",
- cookie->name, cookie->nlen, name, nlen, ino, dtype);
+ _enter("{%s,%Zu},%s,%u,,%llu,%u",
+ cookie->name, cookie->nlen, name, nlen,
+ (unsigned long long) ino, dtype);
+
+ /* insanity checks first */
+ BUILD_BUG_ON(sizeof(union afs_dir_block) != 2048);
+ BUILD_BUG_ON(sizeof(union afs_dirent) != 32);
if (cookie->nlen != nlen || memcmp(cookie->name, name, nlen) != 0) {
_leave(" = 0 [no]");
_leave(" = -1 [found]");
return -1;
-} /* end afs_dir_lookup_filldir() */
+}
-/*****************************************************************************/
/*
- * look up an entry in a directory
+ * do a lookup in a directory
+ * - just returns the FID the dentry name maps to if found
*/
-static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
+static int afs_do_lookup(struct inode *dir, struct dentry *dentry,
+ struct afs_fid *fid, struct key *key)
{
- struct afs_dir_lookup_cookie cookie;
+ struct afs_lookup_cookie cookie;
struct afs_super_info *as;
+ unsigned fpos;
+ int ret;
+
+ _enter("{%lu},%p{%s},", dir->i_ino, dentry, dentry->d_name.name);
+
+ as = dir->i_sb->s_fs_info;
+
+ /* search the directory */
+ cookie.name = dentry->d_name.name;
+ cookie.nlen = dentry->d_name.len;
+ cookie.fid.vid = as->volume->vid;
+ cookie.found = 0;
+
+ fpos = 0;
+ ret = afs_dir_iterate(dir, &fpos, &cookie, afs_lookup_filldir,
+ key);
+ if (ret < 0) {
+ _leave(" = %d [iter]", ret);
+ return ret;
+ }
+
+ ret = -ENOENT;
+ if (!cookie.found) {
+ _leave(" = -ENOENT [not found]");
+ return -ENOENT;
+ }
+
+ *fid = cookie.fid;
+ _leave(" = 0 { vn=%u u=%u }", fid->vnode, fid->unique);
+ return 0;
+}
+
+/*
+ * look up an entry in a directory
+ */
+static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
+ struct nameidata *nd)
+{
struct afs_vnode *vnode;
+ struct afs_fid fid;
struct inode *inode;
- unsigned fpos;
+ struct key *key;
int ret;
- _enter("{%lu},%p{%s}", dir->i_ino, dentry, dentry->d_name.name);
+ vnode = AFS_FS_I(dir);
- /* insanity checks first */
- BUILD_BUG_ON(sizeof(union afs_dir_block) != 2048);
- BUILD_BUG_ON(sizeof(union afs_dirent) != 32);
+ _enter("{%x:%d},%p{%s},",
+ vnode->fid.vid, vnode->fid.vnode, dentry, dentry->d_name.name);
+
+ ASSERTCMP(dentry->d_inode, ==, NULL);
if (dentry->d_name.len > 255) {
_leave(" = -ENAMETOOLONG");
return ERR_PTR(-ENAMETOOLONG);
}
- vnode = AFS_FS_I(dir);
- if (vnode->flags & AFS_VNODE_DELETED) {
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
_leave(" = -ESTALE");
return ERR_PTR(-ESTALE);
}
- as = dir->i_sb->s_fs_info;
-
- /* search the directory */
- cookie.name = dentry->d_name.name;
- cookie.nlen = dentry->d_name.len;
- cookie.fid.vid = as->volume->vid;
- cookie.found = 0;
+ key = afs_request_key(vnode->volume->cell);
+ if (IS_ERR(key)) {
+ _leave(" = %ld [key]", PTR_ERR(key));
+ return ERR_PTR(PTR_ERR(key));
+ }
- fpos = 0;
- ret = afs_dir_iterate(dir, &fpos, &cookie, afs_dir_lookup_filldir);
+ ret = afs_validate(vnode, key);
if (ret < 0) {
- _leave(" = %d", ret);
+ key_put(key);
+ _leave(" = %d [val]", ret);
return ERR_PTR(ret);
}
- ret = -ENOENT;
- if (!cookie.found) {
- _leave(" = %d", ret);
+ ret = afs_do_lookup(dir, dentry, &fid, key);
+ if (ret < 0) {
+ key_put(key);
+ if (ret == -ENOENT) {
+ d_add(dentry, NULL);
+ _leave(" = NULL [negative]");
+ return NULL;
+ }
+ _leave(" = %d [do]", ret);
return ERR_PTR(ret);
}
+ dentry->d_fsdata = (void *)(unsigned long) vnode->status.data_version;
/* instantiate the dentry */
- ret = afs_iget(dir->i_sb, &cookie.fid, &inode);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ERR_PTR(ret);
+ inode = afs_iget(dir->i_sb, key, &fid, NULL, NULL);
+ key_put(key);
+ if (IS_ERR(inode)) {
+ _leave(" = %ld", PTR_ERR(inode));
+ return ERR_PTR(PTR_ERR(inode));
}
dentry->d_op = &afs_fs_dentry_operations;
- dentry->d_fsdata = (void *) (unsigned long) vnode->status.version;
d_add(dentry, inode);
_leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%lu }",
- cookie.fid.vnode,
- cookie.fid.unique,
+ fid.vnode,
+ fid.unique,
dentry->d_inode->i_ino,
dentry->d_inode->i_version);
return NULL;
-} /* end afs_dir_lookup() */
+}
-/*****************************************************************************/
/*
* check that a dentry lookup hit has found a valid entry
* - NOTE! the hit can be a negative hit too, so we can't assume we have an
* inode
- * (derived from nfs_lookup_revalidate)
*/
static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
{
- struct afs_dir_lookup_cookie cookie;
+ struct afs_vnode *vnode, *dir;
+ struct afs_fid fid;
struct dentry *parent;
- struct inode *inode, *dir;
- unsigned fpos;
+ struct key *key;
+ void *dir_version;
int ret;
- _enter("{sb=%p n=%s},", dentry->d_sb, dentry->d_name.name);
+ vnode = AFS_FS_I(dentry->d_inode);
- /* lock down the parent dentry so we can peer at it */
- parent = dget_parent(dentry->d_parent);
+ if (dentry->d_inode)
+ _enter("{v={%x:%u} n=%s fl=%lx},",
+ vnode->fid.vid, vnode->fid.vnode, dentry->d_name.name,
+ vnode->flags);
+ else
+ _enter("{neg n=%s}", dentry->d_name.name);
- dir = parent->d_inode;
- inode = dentry->d_inode;
+ key = afs_request_key(AFS_FS_S(dentry->d_sb)->volume->cell);
+ if (IS_ERR(key))
+ key = NULL;
- /* handle a negative dentry */
- if (!inode)
+ /* lock down the parent dentry so we can peer at it */
+ parent = dget_parent(dentry);
+ if (!parent->d_inode)
goto out_bad;
- /* handle a bad inode */
- if (is_bad_inode(inode)) {
- printk("kAFS: afs_d_revalidate: %s/%s has bad inode\n",
- dentry->d_parent->d_name.name, dentry->d_name.name);
- goto out_bad;
- }
+ dir = AFS_FS_I(parent->d_inode);
- /* force a full look up if the parent directory changed since last the
- * server was consulted
- * - otherwise this inode must still exist, even if the inode details
- * themselves have changed
- */
- if (AFS_FS_I(dir)->flags & AFS_VNODE_CHANGED)
- afs_vnode_fetch_status(AFS_FS_I(dir));
+ /* validate the parent directory */
+ if (test_bit(AFS_VNODE_MODIFIED, &dir->flags))
+ afs_validate(dir, key);
- if (AFS_FS_I(dir)->flags & AFS_VNODE_DELETED) {
+ if (test_bit(AFS_VNODE_DELETED, &dir->flags)) {
_debug("%s: parent dir deleted", dentry->d_name.name);
goto out_bad;
}
- if (AFS_FS_I(inode)->flags & AFS_VNODE_DELETED) {
- _debug("%s: file already deleted", dentry->d_name.name);
- goto out_bad;
- }
-
- if ((unsigned long) dentry->d_fsdata !=
- (unsigned long) AFS_FS_I(dir)->status.version) {
- _debug("%s: parent changed %lu -> %u",
- dentry->d_name.name,
- (unsigned long) dentry->d_fsdata,
- (unsigned) AFS_FS_I(dir)->status.version);
+ dir_version = (void *) (unsigned long) dir->status.data_version;
+ if (dentry->d_fsdata == dir_version)
+ goto out_valid; /* the dir contents are unchanged */
- /* search the directory for this vnode */
- cookie.name = dentry->d_name.name;
- cookie.nlen = dentry->d_name.len;
- cookie.fid.vid = AFS_FS_I(inode)->volume->vid;
- cookie.found = 0;
+ _debug("dir modified");
- fpos = 0;
- ret = afs_dir_iterate(dir, &fpos, &cookie,
- afs_dir_lookup_filldir);
- if (ret < 0) {
- _debug("failed to iterate dir %s: %d",
- parent->d_name.name, ret);
+ /* search the directory for this vnode */
+ ret = afs_do_lookup(&dir->vfs_inode, dentry, &fid, key);
+ switch (ret) {
+ case 0:
+ /* the filename maps to something */
+ if (!dentry->d_inode)
+ goto out_bad;
+ if (is_bad_inode(dentry->d_inode)) {
+ printk("kAFS: afs_d_revalidate: %s/%s has bad inode\n",
+ parent->d_name.name, dentry->d_name.name);
goto out_bad;
- }
-
- if (!cookie.found) {
- _debug("%s: dirent not found", dentry->d_name.name);
- goto not_found;
}
/* if the vnode ID has changed, then the dirent points to a
* different file */
- if (cookie.fid.vnode != AFS_FS_I(inode)->fid.vnode) {
- _debug("%s: dirent changed", dentry->d_name.name);
+ if (fid.vnode != vnode->fid.vnode) {
+ _debug("%s: dirent changed [%u != %u]",
+ dentry->d_name.name, fid.vnode,
+ vnode->fid.vnode);
goto not_found;
}
/* if the vnode ID uniqifier has changed, then the file has
- * been deleted */
- if (cookie.fid.unique != AFS_FS_I(inode)->fid.unique) {
+ * been deleted and replaced, and the original vnode ID has
+ * been reused */
+ if (fid.unique != vnode->fid.unique) {
_debug("%s: file deleted (uq %u -> %u I:%lu)",
- dentry->d_name.name,
- cookie.fid.unique,
- AFS_FS_I(inode)->fid.unique,
- inode->i_version);
- spin_lock(&AFS_FS_I(inode)->lock);
- AFS_FS_I(inode)->flags |= AFS_VNODE_DELETED;
- spin_unlock(&AFS_FS_I(inode)->lock);
- invalidate_remote_inode(inode);
- goto out_bad;
+ dentry->d_name.name, fid.unique,
+ vnode->fid.unique, dentry->d_inode->i_version);
+ spin_lock(&vnode->lock);
+ set_bit(AFS_VNODE_DELETED, &vnode->flags);
+ spin_unlock(&vnode->lock);
+ goto not_found;
}
+ goto out_valid;
+
+ case -ENOENT:
+ /* the filename is unknown */
+ _debug("%s: dirent not found", dentry->d_name.name);
+ if (dentry->d_inode)
+ goto not_found;
+ goto out_valid;
- dentry->d_fsdata =
- (void *) (unsigned long) AFS_FS_I(dir)->status.version;
+ default:
+ _debug("failed to iterate dir %s: %d",
+ parent->d_name.name, ret);
+ goto out_bad;
}
- out_valid:
+out_valid:
+ dentry->d_fsdata = dir_version;
+out_skip:
dput(parent);
+ key_put(key);
_leave(" = 1 [valid]");
return 1;
/* the dirent, if it exists, now points to a different vnode */
- not_found:
+not_found:
spin_lock(&dentry->d_lock);
dentry->d_flags |= DCACHE_NFSFS_RENAMED;
spin_unlock(&dentry->d_lock);
- out_bad:
- if (inode) {
+out_bad:
+ if (dentry->d_inode) {
/* don't unhash if we have submounts */
if (have_submounts(dentry))
- goto out_valid;
+ goto out_skip;
}
- shrink_dcache_parent(dentry);
-
_debug("dropping dentry %s/%s",
- dentry->d_parent->d_name.name, dentry->d_name.name);
+ parent->d_name.name, dentry->d_name.name);
+ shrink_dcache_parent(dentry);
d_drop(dentry);
-
dput(parent);
+ key_put(key);
_leave(" = 0 [bad]");
return 0;
-} /* end afs_d_revalidate() */
+}
-/*****************************************************************************/
/*
* allow the VFS to enquire as to whether a dentry should be unhashed (mustn't
* sleep)
if (dentry->d_flags & DCACHE_NFSFS_RENAMED)
goto zap;
- if (dentry->d_inode) {
- if (AFS_FS_I(dentry->d_inode)->flags & AFS_VNODE_DELETED)
+ if (dentry->d_inode &&
+ test_bit(AFS_VNODE_DELETED, &AFS_FS_I(dentry->d_inode)->flags))
goto zap;
- }
_leave(" = 0 [keep]");
return 0;
- zap:
+zap:
_leave(" = 1 [zap]");
return 1;
-} /* end afs_d_delete() */
+}
+
+/*
+ * handle dentry release
+ */
+static void afs_d_release(struct dentry *dentry)
+{
+ _enter("%s", dentry->d_name.name);
+}
+
+/*
+ * create a directory on an AFS filesystem
+ */
+static int afs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+ struct afs_file_status status;
+ struct afs_callback cb;
+ struct afs_server *server;
+ struct afs_vnode *dvnode, *vnode;
+ struct afs_fid fid;
+ struct inode *inode;
+ struct key *key;
+ int ret;
+
+ dvnode = AFS_FS_I(dir);
+
+ _enter("{%x:%d},{%s},%o",
+ dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name, mode);
+
+ ret = -ENAMETOOLONG;
+ if (dentry->d_name.len > 255)
+ goto error;
+
+ key = afs_request_key(dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ mode |= S_IFDIR;
+ ret = afs_vnode_create(dvnode, key, dentry->d_name.name,
+ mode, &fid, &status, &cb, &server);
+ if (ret < 0)
+ goto mkdir_error;
+
+ inode = afs_iget(dir->i_sb, key, &fid, &status, &cb);
+ if (IS_ERR(inode)) {
+ /* ENOMEM at a really inconvenient time - just abandon the new
+ * directory on the server */
+ ret = PTR_ERR(inode);
+ goto iget_error;
+ }
+
+ /* apply the status report we've got for the new vnode */
+ vnode = AFS_FS_I(inode);
+ spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
+ afs_vnode_finalise_status_update(vnode, server);
+ afs_put_server(server);
+
+ d_instantiate(dentry, inode);
+ if (d_unhashed(dentry)) {
+ _debug("not hashed");
+ d_rehash(dentry);
+ }
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+iget_error:
+ afs_put_server(server);
+mkdir_error:
+ key_put(key);
+error:
+ d_drop(dentry);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * remove a directory from an AFS filesystem
+ */
+static int afs_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ struct afs_vnode *dvnode, *vnode;
+ struct key *key;
+ int ret;
+
+ dvnode = AFS_FS_I(dir);
+
+ _enter("{%x:%d},{%s}",
+ dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name);
+
+ ret = -ENAMETOOLONG;
+ if (dentry->d_name.len > 255)
+ goto error;
+
+ key = afs_request_key(dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ ret = afs_vnode_remove(dvnode, key, dentry->d_name.name, true);
+ if (ret < 0)
+ goto rmdir_error;
+
+ if (dentry->d_inode) {
+ vnode = AFS_FS_I(dentry->d_inode);
+ clear_nlink(&vnode->vfs_inode);
+ set_bit(AFS_VNODE_DELETED, &vnode->flags);
+ afs_discard_callback_on_delete(vnode);
+ }
+
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+rmdir_error:
+ key_put(key);
+error:
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * remove a file from an AFS filesystem
+ */
+static int afs_unlink(struct inode *dir, struct dentry *dentry)
+{
+ struct afs_vnode *dvnode, *vnode;
+ struct key *key;
+ int ret;
+
+ dvnode = AFS_FS_I(dir);
+
+ _enter("{%x:%d},{%s}",
+ dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name);
+
+ ret = -ENAMETOOLONG;
+ if (dentry->d_name.len > 255)
+ goto error;
+
+ key = afs_request_key(dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ if (dentry->d_inode) {
+ vnode = AFS_FS_I(dentry->d_inode);
+
+ /* make sure we have a callback promise on the victim */
+ ret = afs_validate(vnode, key);
+ if (ret < 0)
+ goto error;
+ }
+
+ ret = afs_vnode_remove(dvnode, key, dentry->d_name.name, false);
+ if (ret < 0)
+ goto remove_error;
+
+ if (dentry->d_inode) {
+ /* if the file wasn't deleted due to excess hard links, the
+ * fileserver will break the callback promise on the file - if
+ * it had one - before it returns to us, and if it was deleted,
+ * it won't
+ *
+ * however, if we didn't have a callback promise outstanding,
+ * or it was outstanding on a different server, then it won't
+ * break it either...
+ */
+ vnode = AFS_FS_I(dentry->d_inode);
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
+ _debug("AFS_VNODE_DELETED");
+ if (test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags))
+ _debug("AFS_VNODE_CB_BROKEN");
+ set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+ ret = afs_validate(vnode, key);
+ _debug("nlink %d [val %d]", vnode->vfs_inode.i_nlink, ret);
+ }
+
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+remove_error:
+ key_put(key);
+error:
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * create a regular file on an AFS filesystem
+ */
+static int afs_create(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd)
+{
+ struct afs_file_status status;
+ struct afs_callback cb;
+ struct afs_server *server;
+ struct afs_vnode *dvnode, *vnode;
+ struct afs_fid fid;
+ struct inode *inode;
+ struct key *key;
+ int ret;
+
+ dvnode = AFS_FS_I(dir);
+
+ _enter("{%x:%d},{%s},%o,",
+ dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name, mode);
+
+ ret = -ENAMETOOLONG;
+ if (dentry->d_name.len > 255)
+ goto error;
+
+ key = afs_request_key(dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ mode |= S_IFREG;
+ ret = afs_vnode_create(dvnode, key, dentry->d_name.name,
+ mode, &fid, &status, &cb, &server);
+ if (ret < 0)
+ goto create_error;
+
+ inode = afs_iget(dir->i_sb, key, &fid, &status, &cb);
+ if (IS_ERR(inode)) {
+ /* ENOMEM at a really inconvenient time - just abandon the new
+ * directory on the server */
+ ret = PTR_ERR(inode);
+ goto iget_error;
+ }
+
+ /* apply the status report we've got for the new vnode */
+ vnode = AFS_FS_I(inode);
+ spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
+ afs_vnode_finalise_status_update(vnode, server);
+ afs_put_server(server);
+
+ d_instantiate(dentry, inode);
+ if (d_unhashed(dentry)) {
+ _debug("not hashed");
+ d_rehash(dentry);
+ }
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+iget_error:
+ afs_put_server(server);
+create_error:
+ key_put(key);
+error:
+ d_drop(dentry);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * create a hard link between files in an AFS filesystem
+ */
+static int afs_link(struct dentry *from, struct inode *dir,
+ struct dentry *dentry)
+{
+ struct afs_vnode *dvnode, *vnode;
+ struct key *key;
+ int ret;
+
+ vnode = AFS_FS_I(from->d_inode);
+ dvnode = AFS_FS_I(dir);
+
+ _enter("{%x:%d},{%x:%d},{%s}",
+ vnode->fid.vid, vnode->fid.vnode,
+ dvnode->fid.vid, dvnode->fid.vnode,
+ dentry->d_name.name);
+
+ ret = -ENAMETOOLONG;
+ if (dentry->d_name.len > 255)
+ goto error;
+
+ key = afs_request_key(dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ ret = afs_vnode_link(dvnode, vnode, key, dentry->d_name.name);
+ if (ret < 0)
+ goto link_error;
+
+ atomic_inc(&vnode->vfs_inode.i_count);
+ d_instantiate(dentry, &vnode->vfs_inode);
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+link_error:
+ key_put(key);
+error:
+ d_drop(dentry);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * create a symlink in an AFS filesystem
+ */
+static int afs_symlink(struct inode *dir, struct dentry *dentry,
+ const char *content)
+{
+ struct afs_file_status status;
+ struct afs_server *server;
+ struct afs_vnode *dvnode, *vnode;
+ struct afs_fid fid;
+ struct inode *inode;
+ struct key *key;
+ int ret;
+
+ dvnode = AFS_FS_I(dir);
+
+ _enter("{%x:%d},{%s},%s",
+ dvnode->fid.vid, dvnode->fid.vnode, dentry->d_name.name,
+ content);
+
+ ret = -ENAMETOOLONG;
+ if (dentry->d_name.len > 255)
+ goto error;
+
+ ret = -EINVAL;
+ if (strlen(content) > 1023)
+ goto error;
+
+ key = afs_request_key(dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ ret = afs_vnode_symlink(dvnode, key, dentry->d_name.name, content,
+ &fid, &status, &server);
+ if (ret < 0)
+ goto create_error;
+
+ inode = afs_iget(dir->i_sb, key, &fid, &status, NULL);
+ if (IS_ERR(inode)) {
+ /* ENOMEM at a really inconvenient time - just abandon the new
+ * directory on the server */
+ ret = PTR_ERR(inode);
+ goto iget_error;
+ }
+
+ /* apply the status report we've got for the new vnode */
+ vnode = AFS_FS_I(inode);
+ spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
+ afs_vnode_finalise_status_update(vnode, server);
+ afs_put_server(server);
+
+ d_instantiate(dentry, inode);
+ if (d_unhashed(dentry)) {
+ _debug("not hashed");
+ d_rehash(dentry);
+ }
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+iget_error:
+ afs_put_server(server);
+create_error:
+ key_put(key);
+error:
+ d_drop(dentry);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * rename a file in an AFS filesystem and/or move it between directories
+ */
+static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ struct afs_vnode *orig_dvnode, *new_dvnode, *vnode;
+ struct key *key;
+ int ret;
+
+ vnode = AFS_FS_I(old_dentry->d_inode);
+ orig_dvnode = AFS_FS_I(old_dir);
+ new_dvnode = AFS_FS_I(new_dir);
+
+ _enter("{%x:%d},{%x:%d},{%x:%d},{%s}",
+ orig_dvnode->fid.vid, orig_dvnode->fid.vnode,
+ vnode->fid.vid, vnode->fid.vnode,
+ new_dvnode->fid.vid, new_dvnode->fid.vnode,
+ new_dentry->d_name.name);
+
+ ret = -ENAMETOOLONG;
+ if (new_dentry->d_name.len > 255)
+ goto error;
+
+ key = afs_request_key(orig_dvnode->volume->cell);
+ if (IS_ERR(key)) {
+ ret = PTR_ERR(key);
+ goto error;
+ }
+
+ ret = afs_vnode_rename(orig_dvnode, new_dvnode, key,
+ old_dentry->d_name.name,
+ new_dentry->d_name.name);
+ if (ret < 0)
+ goto rename_error;
+ key_put(key);
+ _leave(" = 0");
+ return 0;
+
+rename_error:
+ key_put(key);
+error:
+ d_drop(new_dentry);
+ _leave(" = %d", ret);
+ return ret;
+}
+++ /dev/null
-/* errors.h: AFS abort/error codes
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_ERRORS_H
-#define _LINUX_AFS_ERRORS_H
-
-#include "types.h"
-
-/* file server abort codes */
-typedef enum {
- VSALVAGE = 101, /* volume needs salvaging */
- VNOVNODE = 102, /* no such file/dir (vnode) */
- VNOVOL = 103, /* no such volume or volume unavailable */
- VVOLEXISTS = 104, /* volume name already exists */
- VNOSERVICE = 105, /* volume not currently in service */
- VOFFLINE = 106, /* volume is currently offline (more info available [VVL-spec]) */
- VONLINE = 107, /* volume is already online */
- VDISKFULL = 108, /* disk partition is full */
- VOVERQUOTA = 109, /* volume's maximum quota exceeded */
- VBUSY = 110, /* volume is temporarily unavailable */
- VMOVED = 111, /* volume moved to new server - ask this FS where */
-} afs_rxfs_abort_t;
-
-extern int afs_abort_to_error(int abortcode);
-
-#endif /* _LINUX_AFS_ERRORS_H */
-/* file.c: AFS filesystem file handling
+/* AFS filesystem file handling
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
-#include "volume.h"
-#include "vnode.h"
-#include <rxrpc/call.h>
#include "internal.h"
-#if 0
-static int afs_file_open(struct inode *inode, struct file *file);
-static int afs_file_release(struct inode *inode, struct file *file);
-#endif
-
static int afs_file_readpage(struct file *file, struct page *page);
static void afs_file_invalidatepage(struct page *page, unsigned long offset);
static int afs_file_releasepage(struct page *page, gfp_t gfp_flags);
+const struct file_operations afs_file_operations = {
+ .open = afs_open,
+ .release = afs_release,
+ .llseek = generic_file_llseek,
+ .read = do_sync_read,
+ .aio_read = generic_file_aio_read,
+ .mmap = generic_file_readonly_mmap,
+ .sendfile = generic_file_sendfile,
+};
+
const struct inode_operations afs_file_inode_operations = {
.getattr = afs_inode_getattr,
+ .permission = afs_permission,
};
const struct address_space_operations afs_fs_aops = {
.invalidatepage = afs_file_invalidatepage,
};
-/*****************************************************************************/
+/*
+ * open an AFS file or directory and attach a key to it
+ */
+int afs_open(struct inode *inode, struct file *file)
+{
+ struct afs_vnode *vnode = AFS_FS_I(inode);
+ struct key *key;
+ int ret;
+
+ _enter("{%x:%x},", vnode->fid.vid, vnode->fid.vnode);
+
+ key = afs_request_key(vnode->volume->cell);
+ if (IS_ERR(key)) {
+ _leave(" = %ld [key]", PTR_ERR(key));
+ return PTR_ERR(key);
+ }
+
+ ret = afs_validate(vnode, key);
+ if (ret < 0) {
+ _leave(" = %d [val]", ret);
+ return ret;
+ }
+
+ file->private_data = key;
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * release an AFS file or directory and discard its key
+ */
+int afs_release(struct inode *inode, struct file *file)
+{
+ struct afs_vnode *vnode = AFS_FS_I(inode);
+
+ _enter("{%x:%x},", vnode->fid.vid, vnode->fid.vnode);
+
+ key_put(file->private_data);
+ _leave(" = 0");
+ return 0;
+}
+
/*
* deal with notification that a page was read from the cache
*/
SetPageUptodate(page);
unlock_page(page);
-} /* end afs_file_readpage_read_complete() */
+}
#endif
-/*****************************************************************************/
/*
* deal with notification that a page was written to the cache
*/
_enter("%p,%p,%p,%d", cookie_data, page, data, error);
unlock_page(page);
-
-} /* end afs_file_readpage_write_complete() */
+}
#endif
-/*****************************************************************************/
/*
* AFS read page from file (or symlink)
*/
static int afs_file_readpage(struct file *file, struct page *page)
{
- struct afs_rxfs_fetch_descriptor desc;
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_page *pageio;
-#endif
struct afs_vnode *vnode;
struct inode *inode;
+ struct key *key;
+ size_t len;
+ off_t offset;
int ret;
inode = page->mapping->host;
- _enter("{%lu},{%lu}", inode->i_ino, page->index);
+ ASSERT(file != NULL);
+ key = file->private_data;
+ ASSERT(key != NULL);
+
+ _enter("{%x},{%lu},{%lu}", key_serial(key), inode->i_ino, page->index);
vnode = AFS_FS_I(inode);
BUG_ON(!PageLocked(page));
ret = -ESTALE;
- if (vnode->flags & AFS_VNODE_DELETED)
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
goto error;
#ifdef AFS_CACHING_SUPPORT
- ret = cachefs_page_get_private(page, &pageio, GFP_NOIO);
- if (ret < 0)
- goto error;
-
/* is it cached? */
ret = cachefs_read_or_alloc_page(vnode->cache,
page,
case -ENOBUFS:
case -ENODATA:
default:
- desc.fid = vnode->fid;
- desc.offset = page->index << PAGE_CACHE_SHIFT;
- desc.size = min((size_t) (inode->i_size - desc.offset),
- (size_t) PAGE_SIZE);
- desc.buffer = kmap(page);
-
- clear_page(desc.buffer);
+ offset = page->index << PAGE_CACHE_SHIFT;
+ len = min_t(size_t, i_size_read(inode) - offset, PAGE_SIZE);
/* read the contents of the file from the server into the
* page */
- ret = afs_vnode_fetch_data(vnode, &desc);
- kunmap(page);
+ ret = afs_vnode_fetch_data(vnode, key, offset, len, page);
if (ret < 0) {
- if (ret==-ENOENT) {
+ if (ret == -ENOENT) {
_debug("got NOENT from server"
" - marking file deleted and stale");
- vnode->flags |= AFS_VNODE_DELETED;
+ set_bit(AFS_VNODE_DELETED, &vnode->flags);
ret = -ESTALE;
}
-
#ifdef AFS_CACHING_SUPPORT
cachefs_uncache_page(vnode->cache, page);
#endif
_leave(" = 0");
return 0;
- error:
+error:
SetPageError(page);
unlock_page(page);
-
_leave(" = %d", ret);
return ret;
+}
-} /* end afs_file_readpage() */
-
-/*****************************************************************************/
/*
* get a page cookie for the specified page
*/
_leave(" = %d", ret);
return ret;
-} /* end afs_cache_get_page_cookie() */
+}
#endif
-/*****************************************************************************/
/*
* invalidate part or all of a page
*/
}
_leave(" = %d", ret);
-} /* end afs_file_invalidatepage() */
+}
-/*****************************************************************************/
/*
* release a page and cleanup its private data
*/
_leave(" = 0");
return 0;
-} /* end afs_file_releasepage() */
+}
-/* fsclient.c: AFS File Server client stubs
+/* AFS File Server client stubs
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/init.h>
#include <linux/sched.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include "fsclient.h"
-#include "cmservice.h"
-#include "vnode.h"
-#include "server.h"
-#include "errors.h"
+#include <linux/circ_buf.h>
#include "internal.h"
+#include "afs_fs.h"
-#define FSFETCHSTATUS 132 /* AFS Fetch file status */
-#define FSFETCHDATA 130 /* AFS Fetch file data */
-#define FSGIVEUPCALLBACKS 147 /* AFS Discard callback promises */
-#define FSGETVOLUMEINFO 148 /* AFS Get root volume information */
-#define FSGETROOTVOLUME 151 /* AFS Get root volume name */
-#define FSLOOKUP 161 /* AFS lookup file in directory */
-
-/*****************************************************************************/
/*
- * map afs abort codes to/from Linux error codes
- * - called with call->lock held
+ * decode an AFSFid block
*/
-static void afs_rxfs_aemap(struct rxrpc_call *call)
+static void xdr_decode_AFSFid(const __be32 **_bp, struct afs_fid *fid)
{
- switch (call->app_err_state) {
- case RXRPC_ESTATE_LOCAL_ABORT:
- call->app_abort_code = -call->app_errno;
- break;
- case RXRPC_ESTATE_PEER_ABORT:
- call->app_errno = afs_abort_to_error(call->app_abort_code);
- break;
- default:
- break;
- }
-} /* end afs_rxfs_aemap() */
+ const __be32 *bp = *_bp;
+
+ fid->vid = ntohl(*bp++);
+ fid->vnode = ntohl(*bp++);
+ fid->unique = ntohl(*bp++);
+ *_bp = bp;
+}
-/*****************************************************************************/
/*
- * get the root volume name from a fileserver
- * - this operation doesn't seem to work correctly in OpenAFS server 1.2.2
+ * decode an AFSFetchStatus block
*/
-#if 0
-int afs_rxfs_get_root_volume(struct afs_server *server,
- char *buf, size_t *buflen)
+static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
+ struct afs_file_status *status,
+ struct afs_vnode *vnode)
{
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[2];
- size_t sent;
- int ret;
- u32 param[1];
+ const __be32 *bp = *_bp;
+ umode_t mode;
+ u64 data_version, size;
+ u32 changed = 0; /* becomes non-zero if ctime-type changes seen */
+
+#define EXTRACT(DST) \
+ do { \
+ u32 x = ntohl(*bp++); \
+ changed |= DST - x; \
+ DST = x; \
+ } while (0)
+
+ status->if_version = ntohl(*bp++);
+ EXTRACT(status->type);
+ EXTRACT(status->nlink);
+ size = ntohl(*bp++);
+ data_version = ntohl(*bp++);
+ EXTRACT(status->author);
+ EXTRACT(status->owner);
+ EXTRACT(status->caller_access); /* call ticket dependent */
+ EXTRACT(status->anon_access);
+ EXTRACT(status->mode);
+ EXTRACT(status->parent.vnode);
+ EXTRACT(status->parent.unique);
+ bp++; /* seg size */
+ status->mtime_client = ntohl(*bp++);
+ status->mtime_server = ntohl(*bp++);
+ EXTRACT(status->group);
+ bp++; /* sync counter */
+ data_version |= (u64) ntohl(*bp++) << 32;
+ bp++; /* lock count */
+ size |= (u64) ntohl(*bp++) << 32;
+ bp++; /* spare 4 */
+ *_bp = bp;
+
+ if (size != status->size) {
+ status->size = size;
+ changed |= true;
+ }
+ status->mode &= S_IALLUGO;
+
+ _debug("vnode time %lx, %lx",
+ status->mtime_client, status->mtime_server);
+
+ if (vnode) {
+ status->parent.vid = vnode->fid.vid;
+ if (changed && !test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
+ _debug("vnode changed");
+ i_size_write(&vnode->vfs_inode, size);
+ vnode->vfs_inode.i_uid = status->owner;
+ vnode->vfs_inode.i_gid = status->group;
+ vnode->vfs_inode.i_version = vnode->fid.unique;
+ vnode->vfs_inode.i_nlink = status->nlink;
+
+ mode = vnode->vfs_inode.i_mode;
+ mode &= ~S_IALLUGO;
+ mode |= status->mode;
+ barrier();
+ vnode->vfs_inode.i_mode = mode;
+ }
- DECLARE_WAITQUEUE(myself, current);
+ vnode->vfs_inode.i_ctime.tv_sec = status->mtime_server;
+ vnode->vfs_inode.i_mtime = vnode->vfs_inode.i_ctime;
+ vnode->vfs_inode.i_atime = vnode->vfs_inode.i_ctime;
+ }
- kenter("%p,%p,%u",server, buf, *buflen);
+ if (status->data_version != data_version) {
+ status->data_version = data_version;
+ if (vnode && !test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
+ _debug("vnode modified %llx on {%x:%u}",
+ (unsigned long long) data_version,
+ vnode->fid.vid, vnode->fid.vnode);
+ set_bit(AFS_VNODE_MODIFIED, &vnode->flags);
+ set_bit(AFS_VNODE_ZAP_DATA, &vnode->flags);
+ }
+ }
+}
- /* get hold of the fileserver connection */
- ret = afs_server_get_fsconn(server, &conn);
- if (ret < 0)
- goto out;
+/*
+ * decode an AFSCallBack block
+ */
+static void xdr_decode_AFSCallBack(const __be32 **_bp, struct afs_vnode *vnode)
+{
+ const __be32 *bp = *_bp;
- /* create a call through that connection */
- ret = rxrpc_create_call(conn, NULL, NULL, afs_rxfs_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = FSGETROOTVOLUME;
+ vnode->cb_version = ntohl(*bp++);
+ vnode->cb_expiry = ntohl(*bp++);
+ vnode->cb_type = ntohl(*bp++);
+ vnode->cb_expires = vnode->cb_expiry + get_seconds();
+ *_bp = bp;
+}
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
+static void xdr_decode_AFSCallBack_raw(const __be32 **_bp,
+ struct afs_callback *cb)
+{
+ const __be32 *bp = *_bp;
- /* marshall the parameters */
- param[0] = htonl(FSGETROOTVOLUME);
-
- piov[0].iov_len = sizeof(param);
- piov[0].iov_base = param;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (call->app_call_state != RXRPC_CSTATE_CLNT_RCV_REPLY ||
- signal_pending(current))
- break;
- schedule();
- }
- set_current_state(TASK_RUNNING);
+ cb->version = ntohl(*bp++);
+ cb->expiry = ntohl(*bp++);
+ cb->type = ntohl(*bp++);
+ *_bp = bp;
+}
- ret = -EINTR;
- if (signal_pending(current))
- goto abort;
+/*
+ * decode an AFSVolSync block
+ */
+static void xdr_decode_AFSVolSync(const __be32 **_bp,
+ struct afs_volsync *volsync)
+{
+ const __be32 *bp = *_bp;
- switch (call->app_call_state) {
- case RXRPC_CSTATE_ERROR:
- ret = call->app_errno;
- kdebug("Got Error: %d", ret);
- goto out_unwait;
+ volsync->creation = ntohl(*bp++);
+ bp++; /* spare2 */
+ bp++; /* spare3 */
+ bp++; /* spare4 */
+ bp++; /* spare5 */
+ bp++; /* spare6 */
+ *_bp = bp;
+}
- case RXRPC_CSTATE_CLNT_GOT_REPLY:
- /* read the reply */
- kdebug("Got Reply: qty=%d", call->app_ready_qty);
+/*
+ * deliver reply data to an FS.FetchStatus
+ */
+static int afs_deliver_fs_fetch_status(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ struct afs_vnode *vnode = call->reply;
+ const __be32 *bp;
- ret = -EBADMSG;
- if (call->app_ready_qty <= 4)
- goto abort;
+ _enter(",,%u", last);
- ret = rxrpc_call_read_data(call, NULL, call->app_ready_qty, 0);
- if (ret < 0)
- goto abort;
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
-#if 0
- /* unmarshall the reply */
- bp = buffer;
- for (loop = 0; loop < 65; loop++)
- entry->name[loop] = ntohl(*bp++);
- entry->name[64] = 0;
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
- entry->type = ntohl(*bp++);
- entry->num_servers = ntohl(*bp++);
+ /* unmarshall the reply once we've received all of it */
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode);
+ xdr_decode_AFSCallBack(&bp, vnode);
+ if (call->reply2)
+ xdr_decode_AFSVolSync(&bp, call->reply2);
- for (loop = 0; loop < 8; loop++)
- entry->servers[loop].addr.s_addr = *bp++;
+ _leave(" = 0 [done]");
+ return 0;
+}
- for (loop = 0; loop < 8; loop++)
- entry->servers[loop].partition = ntohl(*bp++);
+/*
+ * FS.FetchStatus operation type
+ */
+static const struct afs_call_type afs_RXFSFetchStatus = {
+ .name = "FS.FetchStatus",
+ .deliver = afs_deliver_fs_fetch_status,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
- for (loop = 0; loop < 8; loop++)
- entry->servers[loop].flags = ntohl(*bp++);
+/*
+ * fetch the status information for a file
+ */
+int afs_fs_fetch_file_status(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ struct afs_volsync *volsync,
+ const struct afs_wait_mode *wait_mode)
+{
+ struct afs_call *call;
+ __be32 *bp;
- for (loop = 0; loop < 3; loop++)
- entry->volume_ids[loop] = ntohl(*bp++);
+ _enter(",%x,{%x:%d},,",
+ key_serial(key), vnode->fid.vid, vnode->fid.vnode);
- entry->clone_id = ntohl(*bp++);
- entry->flags = ntohl(*bp);
-#endif
+ call = afs_alloc_flat_call(&afs_RXFSFetchStatus, 16, (21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
- /* success */
- ret = 0;
- goto out_unwait;
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = volsync;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
- default:
- BUG();
- }
+ /* marshall the parameters */
+ bp = call->request;
+ bp[0] = htonl(FSFETCHSTATUS);
+ bp[1] = htonl(vnode->fid.vid);
+ bp[2] = htonl(vnode->fid.vnode);
+ bp[3] = htonl(vnode->fid.unique);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- afs_server_release_fsconn(server, conn);
- out:
- kleave("");
- return ret;
-} /* end afs_rxfs_get_root_volume() */
-#endif
-
-/*****************************************************************************/
/*
- * get information about a volume
+ * deliver reply data to an FS.FetchData
*/
-#if 0
-int afs_rxfs_get_volume_info(struct afs_server *server,
- const char *name,
- struct afs_volume_info *vinfo)
+static int afs_deliver_fs_fetch_data(struct afs_call *call,
+ struct sk_buff *skb, bool last)
{
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[3];
- size_t sent;
+ struct afs_vnode *vnode = call->reply;
+ const __be32 *bp;
+ struct page *page;
+ void *buffer;
int ret;
- u32 param[2], *bp, zero;
- DECLARE_WAITQUEUE(myself, current);
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
+
+ switch (call->unmarshall) {
+ case 0:
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the returned data length */
+ case 1:
+ _debug("extract data length");
+ ret = afs_extract_data(call, skb, last, &call->tmp, 4);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
- _enter("%p,%s,%p", server, name, vinfo);
+ call->count = ntohl(call->tmp);
+ _debug("DATA length: %u", call->count);
+ if (call->count > PAGE_SIZE)
+ return -EBADMSG;
+ call->offset = 0;
+ call->unmarshall++;
+
+ if (call->count < PAGE_SIZE) {
+ buffer = kmap_atomic(call->reply3, KM_USER0);
+ memset(buffer + PAGE_SIZE - call->count, 0,
+ call->count);
+ kunmap_atomic(buffer, KM_USER0);
+ }
- /* get hold of the fileserver connection */
- ret = afs_server_get_fsconn(server, &conn);
- if (ret < 0)
- goto out;
+ /* extract the returned data */
+ case 2:
+ _debug("extract data");
+ page = call->reply3;
+ buffer = kmap_atomic(page, KM_USER0);
+ ret = afs_extract_data(call, skb, last, buffer, call->count);
+ kunmap_atomic(buffer, KM_USER0);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
- /* create a call through that connection */
- ret = rxrpc_create_call(conn, NULL, NULL, afs_rxfs_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = FSGETVOLUMEINFO;
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* extract the metadata */
+ case 3:
+ ret = afs_extract_data(call, skb, last, call->buffer,
+ (21 + 3 + 6) * 4);
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode);
+ xdr_decode_AFSCallBack(&bp, vnode);
+ if (call->reply2)
+ xdr_decode_AFSVolSync(&bp, call->reply2);
- /* marshall the parameters */
- piov[1].iov_len = strlen(name);
- piov[1].iov_base = (char *) name;
-
- zero = 0;
- piov[2].iov_len = (4 - (piov[1].iov_len & 3)) & 3;
- piov[2].iov_base = &zero;
-
- param[0] = htonl(FSGETVOLUMEINFO);
- param[1] = htonl(piov[1].iov_len);
-
- piov[0].iov_len = sizeof(param);
- piov[0].iov_base = param;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 3, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- bp = rxrpc_call_alloc_scratch(call, 64);
-
- ret = rxrpc_call_read_data(call, bp, 64,
- RXRPC_CALL_READ_BLOCK |
- RXRPC_CALL_READ_ALL);
- if (ret < 0) {
- if (ret == -ECONNABORTED) {
- ret = call->app_errno;
- goto out_unwait;
- }
- goto abort;
+ call->offset = 0;
+ call->unmarshall++;
+
+ case 4:
+ _debug("trailer");
+ if (skb->len != 0)
+ return -EBADMSG;
+ break;
}
- /* unmarshall the reply */
- vinfo->vid = ntohl(*bp++);
- vinfo->type = ntohl(*bp++);
-
- vinfo->type_vids[0] = ntohl(*bp++);
- vinfo->type_vids[1] = ntohl(*bp++);
- vinfo->type_vids[2] = ntohl(*bp++);
- vinfo->type_vids[3] = ntohl(*bp++);
- vinfo->type_vids[4] = ntohl(*bp++);
-
- vinfo->nservers = ntohl(*bp++);
- vinfo->servers[0].addr.s_addr = *bp++;
- vinfo->servers[1].addr.s_addr = *bp++;
- vinfo->servers[2].addr.s_addr = *bp++;
- vinfo->servers[3].addr.s_addr = *bp++;
- vinfo->servers[4].addr.s_addr = *bp++;
- vinfo->servers[5].addr.s_addr = *bp++;
- vinfo->servers[6].addr.s_addr = *bp++;
- vinfo->servers[7].addr.s_addr = *bp++;
-
- ret = -EBADMSG;
- if (vinfo->nservers > 8)
- goto abort;
-
- /* success */
- ret = 0;
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- afs_server_release_fsconn(server, conn);
- out:
- _leave("");
- return ret;
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
-
-} /* end afs_rxfs_get_volume_info() */
-#endif
-
-/*****************************************************************************/
+ if (!last)
+ return 0;
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
/*
- * fetch the status information for a file
+ * FS.FetchData operation type
+ */
+static const struct afs_call_type afs_RXFSFetchData = {
+ .name = "FS.FetchData",
+ .deliver = afs_deliver_fs_fetch_data,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * fetch data from a file
*/
-int afs_rxfs_fetch_file_status(struct afs_server *server,
- struct afs_vnode *vnode,
- struct afs_volsync *volsync)
+int afs_fs_fetch_data(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ off_t offset, size_t length,
+ struct page *buffer,
+ const struct afs_wait_mode *wait_mode)
{
- struct afs_server_callslot callslot;
- struct rxrpc_call *call;
- struct kvec piov[1];
- size_t sent;
- int ret;
+ struct afs_call *call;
__be32 *bp;
- DECLARE_WAITQUEUE(myself, current);
+ _enter("");
- _enter("%p,{%u,%u,%u}",
- server, vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
+ call = afs_alloc_flat_call(&afs_RXFSFetchData, 24, (21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
- /* get hold of the fileserver connection */
- ret = afs_server_request_callslot(server, &callslot);
- if (ret < 0)
- goto out;
-
- /* create a call through that connection */
- ret = rxrpc_create_call(callslot.conn, NULL, NULL, afs_rxfs_aemap,
- &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = FSFETCHSTATUS;
-
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = NULL; /* volsync */
+ call->reply3 = buffer;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
/* marshall the parameters */
- bp = rxrpc_call_alloc_scratch(call, 16);
- bp[0] = htonl(FSFETCHSTATUS);
+ bp = call->request;
+ bp[0] = htonl(FSFETCHDATA);
bp[1] = htonl(vnode->fid.vid);
bp[2] = htonl(vnode->fid.vnode);
bp[3] = htonl(vnode->fid.unique);
+ bp[4] = htonl(offset);
+ bp[5] = htonl(length);
- piov[0].iov_len = 16;
- piov[0].iov_base = bp;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- bp = rxrpc_call_alloc_scratch(call, 120);
-
- ret = rxrpc_call_read_data(call, bp, 120,
- RXRPC_CALL_READ_BLOCK |
- RXRPC_CALL_READ_ALL);
- if (ret < 0) {
- if (ret == -ECONNABORTED) {
- ret = call->app_errno;
- goto out_unwait;
- }
- goto abort;
- }
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
- /* unmarshall the reply */
- vnode->status.if_version = ntohl(*bp++);
- vnode->status.type = ntohl(*bp++);
- vnode->status.nlink = ntohl(*bp++);
- vnode->status.size = ntohl(*bp++);
- vnode->status.version = ntohl(*bp++);
- vnode->status.author = ntohl(*bp++);
- vnode->status.owner = ntohl(*bp++);
- vnode->status.caller_access = ntohl(*bp++);
- vnode->status.anon_access = ntohl(*bp++);
- vnode->status.mode = ntohl(*bp++);
- vnode->status.parent.vid = vnode->fid.vid;
- vnode->status.parent.vnode = ntohl(*bp++);
- vnode->status.parent.unique = ntohl(*bp++);
- bp++; /* seg size */
- vnode->status.mtime_client = ntohl(*bp++);
- vnode->status.mtime_server = ntohl(*bp++);
- bp++; /* group */
- bp++; /* sync counter */
- vnode->status.version |= ((unsigned long long) ntohl(*bp++)) << 32;
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
+/*
+ * deliver reply data to an FS.GiveUpCallBacks
+ */
+static int afs_deliver_fs_give_up_callbacks(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ _enter(",{%u},%d", skb->len, last);
- vnode->cb_version = ntohl(*bp++);
- vnode->cb_expiry = ntohl(*bp++);
- vnode->cb_type = ntohl(*bp++);
-
- if (volsync) {
- volsync->creation = ntohl(*bp++);
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
- bp++; /* spare5 */
- bp++; /* spare6 */
- }
+ if (skb->len > 0)
+ return -EBADMSG; /* shouldn't be any reply data */
+ return 0;
+}
- /* success */
- ret = 0;
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- afs_server_release_callslot(server, &callslot);
- out:
- _leave("");
- return ret;
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
-} /* end afs_rxfs_fetch_file_status() */
-
-/*****************************************************************************/
/*
- * fetch the contents of a file or directory
+ * FS.GiveUpCallBacks operation type
*/
-int afs_rxfs_fetch_file_data(struct afs_server *server,
- struct afs_vnode *vnode,
- struct afs_rxfs_fetch_descriptor *desc,
- struct afs_volsync *volsync)
+static const struct afs_call_type afs_RXFSGiveUpCallBacks = {
+ .name = "FS.GiveUpCallBacks",
+ .deliver = afs_deliver_fs_give_up_callbacks,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * give up a set of callbacks
+ * - the callbacks are held in the server->cb_break ring
+ */
+int afs_fs_give_up_callbacks(struct afs_server *server,
+ const struct afs_wait_mode *wait_mode)
{
- struct afs_server_callslot callslot;
- struct rxrpc_call *call;
- struct kvec piov[1];
- size_t sent;
- int ret;
- __be32 *bp;
+ struct afs_call *call;
+ size_t ncallbacks;
+ __be32 *bp, *tp;
+ int loop;
- DECLARE_WAITQUEUE(myself, current);
-
- _enter("%p,{fid={%u,%u,%u},sz=%Zu,of=%lu}",
- server,
- desc->fid.vid,
- desc->fid.vnode,
- desc->fid.unique,
- desc->size,
- desc->offset);
-
- /* get hold of the fileserver connection */
- ret = afs_server_request_callslot(server, &callslot);
- if (ret < 0)
- goto out;
-
- /* create a call through that connection */
- ret = rxrpc_create_call(callslot.conn, NULL, NULL, afs_rxfs_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = FSFETCHDATA;
+ ncallbacks = CIRC_CNT(server->cb_break_head, server->cb_break_tail,
+ ARRAY_SIZE(server->cb_break));
+
+ _enter("{%zu},", ncallbacks);
+
+ if (ncallbacks == 0)
+ return 0;
+ if (ncallbacks > AFSCBMAX)
+ ncallbacks = AFSCBMAX;
+
+ _debug("break %zu callbacks", ncallbacks);
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
+ call = afs_alloc_flat_call(&afs_RXFSGiveUpCallBacks,
+ 12 + ncallbacks * 6 * 4, 0);
+ if (!call)
+ return -ENOMEM;
+
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
/* marshall the parameters */
- bp = rxrpc_call_alloc_scratch(call, 24);
- bp[0] = htonl(FSFETCHDATA);
- bp[1] = htonl(desc->fid.vid);
- bp[2] = htonl(desc->fid.vnode);
- bp[3] = htonl(desc->fid.unique);
- bp[4] = htonl(desc->offset);
- bp[5] = htonl(desc->size);
-
- piov[0].iov_len = 24;
- piov[0].iov_base = bp;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the data count to arrive */
- ret = rxrpc_call_read_data(call, bp, 4, RXRPC_CALL_READ_BLOCK);
- if (ret < 0)
- goto read_failed;
-
- desc->actual = ntohl(bp[0]);
- if (desc->actual != desc->size) {
- ret = -EBADMSG;
- goto abort;
+ bp = call->request;
+ tp = bp + 2 + ncallbacks * 3;
+ *bp++ = htonl(FSGIVEUPCALLBACKS);
+ *bp++ = htonl(ncallbacks);
+ *tp++ = htonl(ncallbacks);
+
+ atomic_sub(ncallbacks, &server->cb_break_n);
+ for (loop = ncallbacks; loop > 0; loop--) {
+ struct afs_callback *cb =
+ &server->cb_break[server->cb_break_tail];
+
+ *bp++ = htonl(cb->fid.vid);
+ *bp++ = htonl(cb->fid.vnode);
+ *bp++ = htonl(cb->fid.unique);
+ *tp++ = htonl(cb->version);
+ *tp++ = htonl(cb->expiry);
+ *tp++ = htonl(cb->type);
+ smp_mb();
+ server->cb_break_tail =
+ (server->cb_break_tail + 1) &
+ (ARRAY_SIZE(server->cb_break) - 1);
}
- /* call the app to read the actual data */
- rxrpc_call_reset_scratch(call);
-
- ret = rxrpc_call_read_data(call, desc->buffer, desc->actual,
- RXRPC_CALL_READ_BLOCK);
- if (ret < 0)
- goto read_failed;
-
- /* wait for the rest of the reply to completely arrive */
- rxrpc_call_reset_scratch(call);
- bp = rxrpc_call_alloc_scratch(call, 120);
-
- ret = rxrpc_call_read_data(call, bp, 120,
- RXRPC_CALL_READ_BLOCK |
- RXRPC_CALL_READ_ALL);
- if (ret < 0)
- goto read_failed;
-
- /* unmarshall the reply */
- vnode->status.if_version = ntohl(*bp++);
- vnode->status.type = ntohl(*bp++);
- vnode->status.nlink = ntohl(*bp++);
- vnode->status.size = ntohl(*bp++);
- vnode->status.version = ntohl(*bp++);
- vnode->status.author = ntohl(*bp++);
- vnode->status.owner = ntohl(*bp++);
- vnode->status.caller_access = ntohl(*bp++);
- vnode->status.anon_access = ntohl(*bp++);
- vnode->status.mode = ntohl(*bp++);
- vnode->status.parent.vid = desc->fid.vid;
- vnode->status.parent.vnode = ntohl(*bp++);
- vnode->status.parent.unique = ntohl(*bp++);
- bp++; /* seg size */
- vnode->status.mtime_client = ntohl(*bp++);
- vnode->status.mtime_server = ntohl(*bp++);
- bp++; /* group */
- bp++; /* sync counter */
- vnode->status.version |= ((unsigned long long) ntohl(*bp++)) << 32;
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
+ ASSERT(ncallbacks > 0);
+ wake_up_nr(&server->cb_break_waitq, ncallbacks);
- vnode->cb_version = ntohl(*bp++);
- vnode->cb_expiry = ntohl(*bp++);
- vnode->cb_type = ntohl(*bp++);
-
- if (volsync) {
- volsync->creation = ntohl(*bp++);
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
- bp++; /* spare5 */
- bp++; /* spare6 */
- }
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
- /* success */
- ret = 0;
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq,&myself);
- rxrpc_put_call(call);
- out_put_conn:
- afs_server_release_callslot(server, &callslot);
- out:
- _leave(" = %d", ret);
- return ret;
-
- read_failed:
- if (ret == -ECONNABORTED) {
- ret = call->app_errno;
- goto out_unwait;
- }
+/*
+ * deliver reply data to an FS.CreateFile or an FS.MakeDir
+ */
+static int afs_deliver_fs_create_vnode(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ struct afs_vnode *vnode = call->reply;
+ const __be32 *bp;
+
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
-} /* end afs_rxfs_fetch_file_data() */
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
+
+ /* unmarshall the reply once we've received all of it */
+ bp = call->buffer;
+ xdr_decode_AFSFid(&bp, call->reply2);
+ xdr_decode_AFSFetchStatus(&bp, call->reply3, NULL);
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode);
+ xdr_decode_AFSCallBack_raw(&bp, call->reply4);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.CreateFile and FS.MakeDir operation type
+ */
+static const struct afs_call_type afs_RXFSCreateXXXX = {
+ .name = "FS.CreateXXXX",
+ .deliver = afs_deliver_fs_create_vnode,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
-/*****************************************************************************/
/*
- * ask the AFS fileserver to discard a callback request on a file
+ * create a file or make a directory
*/
-int afs_rxfs_give_up_callback(struct afs_server *server,
- struct afs_vnode *vnode)
+int afs_fs_create(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ const char *name,
+ umode_t mode,
+ struct afs_fid *newfid,
+ struct afs_file_status *newstatus,
+ struct afs_callback *newcb,
+ const struct afs_wait_mode *wait_mode)
{
- struct afs_server_callslot callslot;
- struct rxrpc_call *call;
- struct kvec piov[1];
- size_t sent;
- int ret;
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz;
__be32 *bp;
- DECLARE_WAITQUEUE(myself, current);
+ _enter("");
- _enter("%p,{%u,%u,%u}",
- server, vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+ reqsz = (5 * 4) + namesz + padsz + (6 * 4);
- /* get hold of the fileserver connection */
- ret = afs_server_request_callslot(server, &callslot);
- if (ret < 0)
- goto out;
+ call = afs_alloc_flat_call(&afs_RXFSCreateXXXX, reqsz,
+ (3 + 21 + 21 + 3 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
- /* create a call through that connection */
- ret = rxrpc_create_call(callslot.conn, NULL, NULL, afs_rxfs_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = newfid;
+ call->reply3 = newstatus;
+ call->reply4 = newcb;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(S_ISDIR(mode) ? FSMAKEDIR : FSCREATEFILE);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
}
- call->app_opcode = FSGIVEUPCALLBACKS;
+ *bp++ = htonl(AFS_SET_MODE);
+ *bp++ = 0; /* mtime */
+ *bp++ = 0; /* owner */
+ *bp++ = 0; /* group */
+ *bp++ = htonl(mode & S_IALLUGO); /* unix mode */
+ *bp++ = 0; /* segment size */
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
- /* marshall the parameters */
- bp = rxrpc_call_alloc_scratch(call, (1 + 4 + 4) * 4);
+/*
+ * deliver reply data to an FS.RemoveFile or FS.RemoveDir
+ */
+static int afs_deliver_fs_remove(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ struct afs_vnode *vnode = call->reply;
+ const __be32 *bp;
- piov[0].iov_len = (1 + 4 + 4) * 4;
- piov[0].iov_base = bp;
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
- *bp++ = htonl(FSGIVEUPCALLBACKS);
- *bp++ = htonl(1);
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
+
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
+
+ /* unmarshall the reply once we've received all of it */
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.RemoveDir/FS.RemoveFile operation type
+ */
+static const struct afs_call_type afs_RXFSRemoveXXXX = {
+ .name = "FS.RemoveXXXX",
+ .deliver = afs_deliver_fs_remove,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * remove a file or directory
+ */
+int afs_fs_remove(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ const char *name,
+ bool isdir,
+ const struct afs_wait_mode *wait_mode)
+{
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+ reqsz = (5 * 4) + namesz + padsz;
+
+ call = afs_alloc_flat_call(&afs_RXFSRemoveXXXX, reqsz, (21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(isdir ? FSREMOVEDIR : FSREMOVEFILE);
*bp++ = htonl(vnode->fid.vid);
*bp++ = htonl(vnode->fid.vnode);
*bp++ = htonl(vnode->fid.unique);
- *bp++ = htonl(1);
- *bp++ = htonl(vnode->cb_version);
- *bp++ = htonl(vnode->cb_expiry);
- *bp++ = htonl(vnode->cb_type);
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (call->app_call_state != RXRPC_CSTATE_CLNT_RCV_REPLY ||
- signal_pending(current))
- break;
- schedule();
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
}
- set_current_state(TASK_RUNNING);
- ret = -EINTR;
- if (signal_pending(current))
- goto abort;
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
- switch (call->app_call_state) {
- case RXRPC_CSTATE_ERROR:
- ret = call->app_errno;
- goto out_unwait;
+/*
+ * deliver reply data to an FS.Link
+ */
+static int afs_deliver_fs_link(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ struct afs_vnode *dvnode = call->reply, *vnode = call->reply2;
+ const __be32 *bp;
- case RXRPC_CSTATE_CLNT_GOT_REPLY:
- ret = 0;
- goto out_unwait;
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
- default:
- BUG();
- }
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
+
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
+
+ /* unmarshall the reply once we've received all of it */
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode);
+ xdr_decode_AFSFetchStatus(&bp, &dvnode->status, dvnode);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.Link operation type
+ */
+static const struct afs_call_type afs_RXFSLink = {
+ .name = "FS.Link",
+ .deliver = afs_deliver_fs_link,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- afs_server_release_callslot(server, &callslot);
- out:
- _leave("");
- return ret;
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
-} /* end afs_rxfs_give_up_callback() */
-
-/*****************************************************************************/
/*
- * look a filename up in a directory
- * - this operation doesn't seem to work correctly in OpenAFS server 1.2.2
+ * make a hard link
*/
-#if 0
-int afs_rxfs_lookup(struct afs_server *server,
- struct afs_vnode *dir,
- const char *filename,
- struct afs_vnode *vnode,
- struct afs_volsync *volsync)
+int afs_fs_link(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *dvnode,
+ struct afs_vnode *vnode,
+ const char *name,
+ const struct afs_wait_mode *wait_mode)
{
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[3];
- size_t sent;
- int ret;
- u32 *bp, zero;
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz;
+ __be32 *bp;
- DECLARE_WAITQUEUE(myself, current);
+ _enter("");
- kenter("%p,{%u,%u,%u},%s",
- server, fid->vid, fid->vnode, fid->unique, filename);
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+ reqsz = (5 * 4) + namesz + padsz + (3 * 4);
- /* get hold of the fileserver connection */
- ret = afs_server_get_fsconn(server, &conn);
- if (ret < 0)
- goto out;
+ call = afs_alloc_flat_call(&afs_RXFSLink, reqsz, (21 + 21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
- /* create a call through that connection */
- ret = rxrpc_create_call(conn, NULL, NULL, afs_rxfs_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
+ call->key = key;
+ call->reply = dvnode;
+ call->reply2 = vnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSLINK);
+ *bp++ = htonl(dvnode->fid.vid);
+ *bp++ = htonl(dvnode->fid.vnode);
+ *bp++ = htonl(dvnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
}
- call->app_opcode = FSLOOKUP;
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
+
+/*
+ * deliver reply data to an FS.Symlink
+ */
+static int afs_deliver_fs_symlink(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ struct afs_vnode *vnode = call->reply;
+ const __be32 *bp;
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq,&myself);
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
+
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
+
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
+
+ /* unmarshall the reply once we've received all of it */
+ bp = call->buffer;
+ xdr_decode_AFSFid(&bp, call->reply2);
+ xdr_decode_AFSFetchStatus(&bp, call->reply3, NULL);
+ xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.Symlink operation type
+ */
+static const struct afs_call_type afs_RXFSSymlink = {
+ .name = "FS.Symlink",
+ .deliver = afs_deliver_fs_symlink,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * create a symbolic link
+ */
+int afs_fs_symlink(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *vnode,
+ const char *name,
+ const char *contents,
+ struct afs_fid *newfid,
+ struct afs_file_status *newstatus,
+ const struct afs_wait_mode *wait_mode)
+{
+ struct afs_call *call;
+ size_t namesz, reqsz, padsz, c_namesz, c_padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ namesz = strlen(name);
+ padsz = (4 - (namesz & 3)) & 3;
+
+ c_namesz = strlen(contents);
+ c_padsz = (4 - (c_namesz & 3)) & 3;
+
+ reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4);
+
+ call = afs_alloc_flat_call(&afs_RXFSSymlink, reqsz,
+ (3 + 21 + 21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = vnode;
+ call->reply2 = newfid;
+ call->reply3 = newstatus;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
/* marshall the parameters */
- bp = rxrpc_call_alloc_scratch(call, 20);
-
- zero = 0;
-
- piov[0].iov_len = 20;
- piov[0].iov_base = bp;
- piov[1].iov_len = strlen(filename);
- piov[1].iov_base = (char *) filename;
- piov[2].iov_len = (4 - (piov[1].iov_len & 3)) & 3;
- piov[2].iov_base = &zero;
-
- *bp++ = htonl(FSLOOKUP);
- *bp++ = htonl(dirfid->vid);
- *bp++ = htonl(dirfid->vnode);
- *bp++ = htonl(dirfid->unique);
- *bp++ = htonl(piov[1].iov_len);
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 3, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- bp = rxrpc_call_alloc_scratch(call, 220);
-
- ret = rxrpc_call_read_data(call, bp, 220,
- RXRPC_CALL_READ_BLOCK |
- RXRPC_CALL_READ_ALL);
- if (ret < 0) {
- if (ret == -ECONNABORTED) {
- ret = call->app_errno;
- goto out_unwait;
- }
- goto abort;
+ bp = call->request;
+ *bp++ = htonl(FSSYMLINK);
+ *bp++ = htonl(vnode->fid.vid);
+ *bp++ = htonl(vnode->fid.vnode);
+ *bp++ = htonl(vnode->fid.unique);
+ *bp++ = htonl(namesz);
+ memcpy(bp, name, namesz);
+ bp = (void *) bp + namesz;
+ if (padsz > 0) {
+ memset(bp, 0, padsz);
+ bp = (void *) bp + padsz;
}
+ *bp++ = htonl(c_namesz);
+ memcpy(bp, contents, c_namesz);
+ bp = (void *) bp + c_namesz;
+ if (c_padsz > 0) {
+ memset(bp, 0, c_padsz);
+ bp = (void *) bp + c_padsz;
+ }
+ *bp++ = htonl(AFS_SET_MODE);
+ *bp++ = 0; /* mtime */
+ *bp++ = 0; /* owner */
+ *bp++ = 0; /* group */
+ *bp++ = htonl(S_IRWXUGO); /* unix mode */
+ *bp++ = 0; /* segment size */
- /* unmarshall the reply */
- fid->vid = ntohl(*bp++);
- fid->vnode = ntohl(*bp++);
- fid->unique = ntohl(*bp++);
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
- vnode->status.if_version = ntohl(*bp++);
- vnode->status.type = ntohl(*bp++);
- vnode->status.nlink = ntohl(*bp++);
- vnode->status.size = ntohl(*bp++);
- vnode->status.version = ntohl(*bp++);
- vnode->status.author = ntohl(*bp++);
- vnode->status.owner = ntohl(*bp++);
- vnode->status.caller_access = ntohl(*bp++);
- vnode->status.anon_access = ntohl(*bp++);
- vnode->status.mode = ntohl(*bp++);
- vnode->status.parent.vid = dirfid->vid;
- vnode->status.parent.vnode = ntohl(*bp++);
- vnode->status.parent.unique = ntohl(*bp++);
- bp++; /* seg size */
- vnode->status.mtime_client = ntohl(*bp++);
- vnode->status.mtime_server = ntohl(*bp++);
- bp++; /* group */
- bp++; /* sync counter */
- vnode->status.version |= ((unsigned long long) ntohl(*bp++)) << 32;
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
+/*
+ * deliver reply data to an FS.Rename
+ */
+static int afs_deliver_fs_rename(struct afs_call *call,
+ struct sk_buff *skb, bool last)
+{
+ struct afs_vnode *orig_dvnode = call->reply, *new_dvnode = call->reply2;
+ const __be32 *bp;
- dir->status.if_version = ntohl(*bp++);
- dir->status.type = ntohl(*bp++);
- dir->status.nlink = ntohl(*bp++);
- dir->status.size = ntohl(*bp++);
- dir->status.version = ntohl(*bp++);
- dir->status.author = ntohl(*bp++);
- dir->status.owner = ntohl(*bp++);
- dir->status.caller_access = ntohl(*bp++);
- dir->status.anon_access = ntohl(*bp++);
- dir->status.mode = ntohl(*bp++);
- dir->status.parent.vid = dirfid->vid;
- dir->status.parent.vnode = ntohl(*bp++);
- dir->status.parent.unique = ntohl(*bp++);
- bp++; /* seg size */
- dir->status.mtime_client = ntohl(*bp++);
- dir->status.mtime_server = ntohl(*bp++);
- bp++; /* group */
- bp++; /* sync counter */
- dir->status.version |= ((unsigned long long) ntohl(*bp++)) << 32;
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
+
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
+
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
+
+ /* unmarshall the reply once we've received all of it */
+ bp = call->buffer;
+ xdr_decode_AFSFetchStatus(&bp, &orig_dvnode->status, orig_dvnode);
+ if (new_dvnode != orig_dvnode)
+ xdr_decode_AFSFetchStatus(&bp, &new_dvnode->status, new_dvnode);
+ /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.Rename operation type
+ */
+static const struct afs_call_type afs_RXFSRename = {
+ .name = "FS.Rename",
+ .deliver = afs_deliver_fs_rename,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * create a symbolic link
+ */
+int afs_fs_rename(struct afs_server *server,
+ struct key *key,
+ struct afs_vnode *orig_dvnode,
+ const char *orig_name,
+ struct afs_vnode *new_dvnode,
+ const char *new_name,
+ const struct afs_wait_mode *wait_mode)
+{
+ struct afs_call *call;
+ size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz;
+ __be32 *bp;
+
+ _enter("");
+
+ o_namesz = strlen(orig_name);
+ o_padsz = (4 - (o_namesz & 3)) & 3;
+
+ n_namesz = strlen(new_name);
+ n_padsz = (4 - (n_namesz & 3)) & 3;
+
+ reqsz = (4 * 4) +
+ 4 + o_namesz + o_padsz +
+ (3 * 4) +
+ 4 + n_namesz + n_padsz;
+
+ call = afs_alloc_flat_call(&afs_RXFSRename, reqsz, (21 + 21 + 6) * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+ call->reply = orig_dvnode;
+ call->reply2 = new_dvnode;
+ call->service_id = FS_SERVICE;
+ call->port = htons(AFS_FS_PORT);
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSRENAME);
+ *bp++ = htonl(orig_dvnode->fid.vid);
+ *bp++ = htonl(orig_dvnode->fid.vnode);
+ *bp++ = htonl(orig_dvnode->fid.unique);
+ *bp++ = htonl(o_namesz);
+ memcpy(bp, orig_name, o_namesz);
+ bp = (void *) bp + o_namesz;
+ if (o_padsz > 0) {
+ memset(bp, 0, o_padsz);
+ bp = (void *) bp + o_padsz;
+ }
- callback->fid = *fid;
- callback->version = ntohl(*bp++);
- callback->expiry = ntohl(*bp++);
- callback->type = ntohl(*bp++);
-
- if (volsync) {
- volsync->creation = ntohl(*bp++);
- bp++; /* spare2 */
- bp++; /* spare3 */
- bp++; /* spare4 */
- bp++; /* spare5 */
- bp++; /* spare6 */
+ *bp++ = htonl(new_dvnode->fid.vid);
+ *bp++ = htonl(new_dvnode->fid.vnode);
+ *bp++ = htonl(new_dvnode->fid.unique);
+ *bp++ = htonl(n_namesz);
+ memcpy(bp, new_name, n_namesz);
+ bp = (void *) bp + n_namesz;
+ if (n_padsz > 0) {
+ memset(bp, 0, n_padsz);
+ bp = (void *) bp + n_padsz;
}
- /* success */
- ret = 0;
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- afs_server_release_fsconn(server, conn);
- out:
- kleave("");
- return ret;
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
-} /* end afs_rxfs_lookup() */
-#endif
+ return afs_make_call(&server->addr, call, GFP_NOFS, wait_mode);
+}
+++ /dev/null
-/* fsclient.h: AFS File Server client stub declarations
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_FSCLIENT_H
-#define _LINUX_AFS_FSCLIENT_H
-
-#include "server.h"
-
-extern int afs_rxfs_get_volume_info(struct afs_server *server,
- const char *name,
- struct afs_volume_info *vinfo);
-
-extern int afs_rxfs_fetch_file_status(struct afs_server *server,
- struct afs_vnode *vnode,
- struct afs_volsync *volsync);
-
-struct afs_rxfs_fetch_descriptor {
- struct afs_fid fid; /* file ID to fetch */
- size_t size; /* total number of bytes to fetch */
- off_t offset; /* offset in file to start from */
- void *buffer; /* read buffer */
- size_t actual; /* actual size sent back by server */
-};
-
-extern int afs_rxfs_fetch_file_data(struct afs_server *server,
- struct afs_vnode *vnode,
- struct afs_rxfs_fetch_descriptor *desc,
- struct afs_volsync *volsync);
-
-extern int afs_rxfs_give_up_callback(struct afs_server *server,
- struct afs_vnode *vnode);
-
-/* this doesn't appear to work in OpenAFS server */
-extern int afs_rxfs_lookup(struct afs_server *server,
- struct afs_vnode *dir,
- const char *filename,
- struct afs_vnode *vnode,
- struct afs_volsync *volsync);
-
-/* this is apparently mis-implemented in OpenAFS server */
-extern int afs_rxfs_get_root_volume(struct afs_server *server,
- char *buf,
- size_t *buflen);
-
-
-#endif /* _LINUX_AFS_FSCLIENT_H */
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
-#include "volume.h"
-#include "vnode.h"
-#include "super.h"
#include "internal.h"
struct afs_iget_data {
struct afs_volume *volume; /* volume on which resides */
};
-/*****************************************************************************/
/*
* map the AFS file status to the inode member variables
*/
-static int afs_inode_map_status(struct afs_vnode *vnode)
+static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
{
struct inode *inode = AFS_VNODE_TO_I(vnode);
- _debug("FS: ft=%d lk=%d sz=%Zu ver=%Lu mod=%hu",
+ _debug("FS: ft=%d lk=%d sz=%llu ver=%Lu mod=%hu",
vnode->status.type,
vnode->status.nlink,
- vnode->status.size,
- vnode->status.version,
+ (unsigned long long) vnode->status.size,
+ vnode->status.data_version,
vnode->status.mode);
switch (vnode->status.type) {
case AFS_FTYPE_FILE:
inode->i_mode = S_IFREG | vnode->status.mode;
inode->i_op = &afs_file_inode_operations;
- inode->i_fop = &generic_ro_fops;
+ inode->i_fop = &afs_file_operations;
break;
case AFS_FTYPE_DIR:
inode->i_mode = S_IFDIR | vnode->status.mode;
/* check to see whether a symbolic link is really a mountpoint */
if (vnode->status.type == AFS_FTYPE_SYMLINK) {
- afs_mntpt_check_symlink(vnode);
+ afs_mntpt_check_symlink(vnode, key);
- if (vnode->flags & AFS_VNODE_MOUNTPOINT) {
+ if (test_bit(AFS_VNODE_MOUNTPOINT, &vnode->flags)) {
inode->i_mode = S_IFDIR | vnode->status.mode;
inode->i_op = &afs_mntpt_inode_operations;
inode->i_fop = &afs_mntpt_file_operations;
}
return 0;
-} /* end afs_inode_map_status() */
+}
-/*****************************************************************************/
-/*
- * attempt to fetch the status of an inode, coelescing multiple simultaneous
- * fetches
- */
-static int afs_inode_fetch_status(struct inode *inode)
-{
- struct afs_vnode *vnode;
- int ret;
-
- vnode = AFS_FS_I(inode);
-
- ret = afs_vnode_fetch_status(vnode);
-
- if (ret == 0)
- ret = afs_inode_map_status(vnode);
-
- return ret;
-
-} /* end afs_inode_fetch_status() */
-
-/*****************************************************************************/
/*
* iget5() comparator
*/
return inode->i_ino == data->fid.vnode &&
inode->i_version == data->fid.unique;
-} /* end afs_iget5_test() */
+}
-/*****************************************************************************/
/*
* iget5() inode initialiser
*/
vnode->volume = data->volume;
return 0;
-} /* end afs_iget5_set() */
+}
-/*****************************************************************************/
/*
* inode retrieval
*/
-inline int afs_iget(struct super_block *sb, struct afs_fid *fid,
- struct inode **_inode)
+struct inode *afs_iget(struct super_block *sb, struct key *key,
+ struct afs_fid *fid, struct afs_file_status *status,
+ struct afs_callback *cb)
{
struct afs_iget_data data = { .fid = *fid };
struct afs_super_info *as;
&data);
if (!inode) {
_leave(" = -ENOMEM");
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
+ _debug("GOT INODE %p { vl=%x vn=%x, u=%x }",
+ inode, fid->vid, fid->vnode, fid->unique);
+
vnode = AFS_FS_I(inode);
/* deal with an existing inode */
if (!(inode->i_state & I_NEW)) {
- ret = afs_vnode_fetch_status(vnode);
- if (ret==0)
- *_inode = inode;
- else
- iput(inode);
- _leave(" = %d", ret);
- return ret;
+ _leave(" = %p", inode);
+ return inode;
}
#ifdef AFS_CACHING_SUPPORT
&vnode->cache);
#endif
- /* okay... it's a new inode */
- inode->i_flags |= S_NOATIME;
- vnode->flags |= AFS_VNODE_CHANGED;
- ret = afs_inode_fetch_status(inode);
- if (ret<0)
+ if (!status) {
+ /* it's a remotely extant inode */
+ set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+ ret = afs_vnode_fetch_status(vnode, NULL, key);
+ if (ret < 0)
+ goto bad_inode;
+ } else {
+ /* it's an inode we just created */
+ memcpy(&vnode->status, status, sizeof(vnode->status));
+
+ if (!cb) {
+ /* it's a symlink we just created (the fileserver
+ * didn't give us a callback) */
+ vnode->cb_version = 0;
+ vnode->cb_expiry = 0;
+ vnode->cb_type = 0;
+ vnode->cb_expires = get_seconds();
+ } else {
+ vnode->cb_version = cb->version;
+ vnode->cb_expiry = cb->expiry;
+ vnode->cb_type = cb->type;
+ vnode->cb_expires = vnode->cb_expiry + get_seconds();
+ }
+ }
+
+ ret = afs_inode_map_status(vnode, key);
+ if (ret < 0)
goto bad_inode;
/* success */
+ clear_bit(AFS_VNODE_UNSET, &vnode->flags);
+ inode->i_flags |= S_NOATIME;
unlock_new_inode(inode);
-
- *_inode = inode;
- _leave(" = 0 [CB { v=%u x=%lu t=%u }]",
- vnode->cb_version,
- vnode->cb_timeout.timo_jif,
- vnode->cb_type);
- return 0;
+ _leave(" = %p [CB { v=%u t=%u }]", inode, vnode->cb_version, vnode->cb_type);
+ return inode;
/* failure */
- bad_inode:
+bad_inode:
make_bad_inode(inode);
unlock_new_inode(inode);
iput(inode);
_leave(" = %d [bad]", ret);
+ return ERR_PTR(ret);
+}
+
+/*
+ * validate a vnode/inode
+ * - there are several things we need to check
+ * - parent dir data changes (rm, rmdir, rename, mkdir, create, link,
+ * symlink)
+ * - parent dir metadata changed (security changes)
+ * - dentry data changed (write, truncate)
+ * - dentry metadata changed (security changes)
+ */
+int afs_validate(struct afs_vnode *vnode, struct key *key)
+{
+ int ret;
+
+ _enter("{v={%x:%u} fl=%lx},%x",
+ vnode->fid.vid, vnode->fid.vnode, vnode->flags,
+ key_serial(key));
+
+ if (vnode->cb_promised &&
+ !test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags) &&
+ !test_bit(AFS_VNODE_MODIFIED, &vnode->flags) &&
+ !test_bit(AFS_VNODE_ZAP_DATA, &vnode->flags)) {
+ if (vnode->cb_expires < get_seconds() + 10) {
+ _debug("callback expired");
+ set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+ } else {
+ goto valid;
+ }
+ }
+
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
+ goto valid;
+
+ mutex_lock(&vnode->validate_lock);
+
+ /* if the promise has expired, we need to check the server again to get
+ * a new promise - note that if the (parent) directory's metadata was
+ * changed then the security may be different and we may no longer have
+ * access */
+ if (!vnode->cb_promised ||
+ test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags)) {
+ _debug("not promised");
+ ret = afs_vnode_fetch_status(vnode, NULL, key);
+ if (ret < 0)
+ goto error_unlock;
+ _debug("new promise [fl=%lx]", vnode->flags);
+ }
+
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
+ _debug("file already deleted");
+ ret = -ESTALE;
+ goto error_unlock;
+ }
+
+ /* if the vnode's data version number changed then its contents are
+ * different */
+ if (test_and_clear_bit(AFS_VNODE_ZAP_DATA, &vnode->flags)) {
+ _debug("zap data {%x:%d}", vnode->fid.vid, vnode->fid.vnode);
+ invalidate_remote_inode(&vnode->vfs_inode);
+ }
+
+ clear_bit(AFS_VNODE_MODIFIED, &vnode->flags);
+ mutex_unlock(&vnode->validate_lock);
+valid:
+ _leave(" = 0");
+ return 0;
+
+error_unlock:
+ mutex_unlock(&vnode->validate_lock);
+ _leave(" = %d", ret);
return ret;
-} /* end afs_iget() */
+}
-/*****************************************************************************/
/*
* read the attributes of an inode
*/
int afs_inode_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat)
{
- struct afs_vnode *vnode;
struct inode *inode;
- int ret;
inode = dentry->d_inode;
_enter("{ ino=%lu v=%lu }", inode->i_ino, inode->i_version);
- vnode = AFS_FS_I(inode);
-
- ret = afs_inode_fetch_status(inode);
- if (ret == -ENOENT) {
- _leave(" = %d [%d %p]",
- ret, atomic_read(&dentry->d_count), dentry->d_inode);
- return ret;
- }
- else if (ret < 0) {
- make_bad_inode(inode);
- _leave(" = %d", ret);
- return ret;
- }
-
- /* transfer attributes from the inode structure to the stat
- * structure */
generic_fillattr(inode, stat);
-
- _leave(" = 0 CB { v=%u x=%u t=%u }",
- vnode->cb_version,
- vnode->cb_expiry,
- vnode->cb_type);
-
return 0;
-} /* end afs_inode_getattr() */
+}
-/*****************************************************************************/
/*
* clear an AFS inode
*/
void afs_clear_inode(struct inode *inode)
{
+ struct afs_permits *permits;
struct afs_vnode *vnode;
vnode = AFS_FS_I(inode);
- _enter("ino=%lu { vn=%08x v=%u x=%u t=%u }",
- inode->i_ino,
+ _enter("{%x:%d.%d} v=%u x=%u t=%u }",
+ vnode->fid.vid,
vnode->fid.vnode,
+ vnode->fid.unique,
vnode->cb_version,
vnode->cb_expiry,
- vnode->cb_type
- );
+ vnode->cb_type);
- BUG_ON(inode->i_ino != vnode->fid.vnode);
+ _debug("CLEAR INODE %p", inode);
- afs_vnode_give_up_callback(vnode);
+ ASSERTCMP(inode->i_ino, ==, vnode->fid.vnode);
+
+ afs_give_up_callback(vnode);
+
+ if (vnode->server) {
+ spin_lock(&vnode->server->fs_lock);
+ rb_erase(&vnode->server_rb, &vnode->server->fs_vnodes);
+ spin_unlock(&vnode->server->fs_lock);
+ afs_put_server(vnode->server);
+ vnode->server = NULL;
+ }
+
+ ASSERT(!vnode->cb_promised);
#ifdef AFS_CACHING_SUPPORT
cachefs_relinquish_cookie(vnode->cache, 0);
vnode->cache = NULL;
#endif
+ mutex_lock(&vnode->permits_lock);
+ permits = vnode->permits;
+ rcu_assign_pointer(vnode->permits, NULL);
+ mutex_unlock(&vnode->permits_lock);
+ if (permits)
+ call_rcu(&permits->rcu, afs_zap_permits);
+
_leave("");
-} /* end afs_clear_inode() */
+}
-/* internal.h: internal AFS stuff
+/* internal AFS stuff
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* 2 of the License, or (at your option) any later version.
*/
-#ifndef AFS_INTERNAL_H
-#define AFS_INTERNAL_H
-
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
+#include <linux/skbuff.h>
+#include <linux/rxrpc.h>
+#include <linux/key.h>
+#include "afs.h"
+#include "afs_vl.h"
+
+#define AFS_CELL_MAX_ADDRS 15
+
+struct afs_call;
+
+typedef enum {
+ AFS_VL_NEW, /* new, uninitialised record */
+ AFS_VL_CREATING, /* creating record */
+ AFS_VL_VALID, /* record is pending */
+ AFS_VL_NO_VOLUME, /* no such volume available */
+ AFS_VL_UPDATING, /* update in progress */
+ AFS_VL_VOLUME_DELETED, /* volume was deleted */
+ AFS_VL_UNCERTAIN, /* uncertain state (update failed) */
+} __attribute__((packed)) afs_vlocation_state_t;
+
+struct afs_mount_params {
+ bool rwpath; /* T if the parent should be considered R/W */
+ bool force; /* T to force cell type */
+ afs_voltype_t type; /* type of volume requested */
+ int volnamesz; /* size of volume name */
+ const char *volname; /* name of volume to mount */
+ struct afs_cell *cell; /* cell in which to find volume */
+ struct afs_volume *volume; /* volume record */
+ struct key *key; /* key to use for secure mounting */
+};
/*
- * debug tracing
+ * definition of how to wait for the completion of an operation
*/
-#define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ## a)
-#define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ## a)
-#define kdebug(FMT, a...) printk(FMT"\n" , ## a)
-#define kproto(FMT, a...) printk("### "FMT"\n" , ## a)
-#define knet(FMT, a...) printk(FMT"\n" , ## a)
-
-#ifdef __KDEBUG
-#define _enter(FMT, a...) kenter(FMT , ## a)
-#define _leave(FMT, a...) kleave(FMT , ## a)
-#define _debug(FMT, a...) kdebug(FMT , ## a)
-#define _proto(FMT, a...) kproto(FMT , ## a)
-#define _net(FMT, a...) knet(FMT , ## a)
-#else
-#define _enter(FMT, a...) do { } while(0)
-#define _leave(FMT, a...) do { } while(0)
-#define _debug(FMT, a...) do { } while(0)
-#define _proto(FMT, a...) do { } while(0)
-#define _net(FMT, a...) do { } while(0)
-#endif
+struct afs_wait_mode {
+ /* RxRPC received message notification */
+ void (*rx_wakeup)(struct afs_call *call);
-static inline void afs_discard_my_signals(void)
-{
- while (signal_pending(current)) {
- siginfo_t sinfo;
+ /* synchronous call waiter and call dispatched notification */
+ int (*wait)(struct afs_call *call);
+
+ /* asynchronous call completion */
+ void (*async_complete)(void *reply, int error);
+};
+
+extern const struct afs_wait_mode afs_sync_call;
+extern const struct afs_wait_mode afs_async_call;
- spin_lock_irq(¤t->sighand->siglock);
- dequeue_signal(current,¤t->blocked, &sinfo);
- spin_unlock_irq(¤t->sighand->siglock);
- }
+/*
+ * a record of an in-progress RxRPC call
+ */
+struct afs_call {
+ const struct afs_call_type *type; /* type of call */
+ const struct afs_wait_mode *wait_mode; /* completion wait mode */
+ wait_queue_head_t waitq; /* processes awaiting completion */
+ struct work_struct async_work; /* asynchronous work processor */
+ struct work_struct work; /* actual work processor */
+ struct sk_buff_head rx_queue; /* received packets */
+ struct rxrpc_call *rxcall; /* RxRPC call handle */
+ struct key *key; /* security for this call */
+ struct afs_server *server; /* server affected by incoming CM call */
+ void *request; /* request data (first part) */
+ void *request2; /* request data (second part) */
+ void *buffer; /* reply receive buffer */
+ void *reply; /* reply buffer (first part) */
+ void *reply2; /* reply buffer (second part) */
+ void *reply3; /* reply buffer (third part) */
+ void *reply4; /* reply buffer (fourth part) */
+ enum { /* call state */
+ AFS_CALL_REQUESTING, /* request is being sent for outgoing call */
+ AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */
+ AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */
+ AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */
+ AFS_CALL_REPLYING, /* replying to incoming call */
+ AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */
+ AFS_CALL_COMPLETE, /* successfully completed */
+ AFS_CALL_BUSY, /* server was busy */
+ AFS_CALL_ABORTED, /* call was aborted */
+ AFS_CALL_ERROR, /* call failed due to error */
+ } state;
+ int error; /* error code */
+ unsigned request_size; /* size of request data */
+ unsigned reply_max; /* maximum size of reply */
+ unsigned reply_size; /* current size of reply */
+ unsigned short offset; /* offset into received data store */
+ unsigned char unmarshall; /* unmarshalling phase */
+ bool incoming; /* T if incoming call */
+ u16 service_id; /* RxRPC service ID to call */
+ __be16 port; /* target UDP port */
+ __be32 operation_ID; /* operation ID for an incoming call */
+ u32 count; /* count for use in unmarshalling */
+ __be32 tmp; /* place to extract temporary data */
+};
+
+struct afs_call_type {
+ const char *name;
+
+ /* deliver request or reply data to an call
+ * - returning an error will cause the call to be aborted
+ */
+ int (*deliver)(struct afs_call *call, struct sk_buff *skb,
+ bool last);
+
+ /* map an abort code to an error number */
+ int (*abort_to_error)(u32 abort_code);
+
+ /* clean up a call */
+ void (*destructor)(struct afs_call *call);
+};
+
+/*
+ * AFS superblock private data
+ * - there's one superblock per volume
+ */
+struct afs_super_info {
+ struct afs_volume *volume; /* volume record */
+ char rwparent; /* T if parent is R/W AFS volume */
+};
+
+static inline struct afs_super_info *AFS_FS_S(struct super_block *sb)
+{
+ return sb->s_fs_info;
}
+extern struct file_system_type afs_fs_type;
+
+/*
+ * entry in the cached cell catalogue
+ */
+struct afs_cache_cell {
+ char name[AFS_MAXCELLNAME]; /* cell name (padded with NULs) */
+ struct in_addr vl_servers[15]; /* cached cell VL servers */
+};
+
+/*
+ * AFS cell record
+ */
+struct afs_cell {
+ atomic_t usage;
+ struct list_head link; /* main cell list link */
+ struct key *anonymous_key; /* anonymous user key for this cell */
+ struct list_head proc_link; /* /proc cell list link */
+ struct proc_dir_entry *proc_dir; /* /proc dir for this cell */
+#ifdef AFS_CACHING_SUPPORT
+ struct cachefs_cookie *cache; /* caching cookie */
+#endif
+
+ /* server record management */
+ rwlock_t servers_lock; /* active server list lock */
+ struct list_head servers; /* active server list */
+
+ /* volume location record management */
+ struct rw_semaphore vl_sem; /* volume management serialisation semaphore */
+ struct list_head vl_list; /* cell's active VL record list */
+ spinlock_t vl_lock; /* vl_list lock */
+ unsigned short vl_naddrs; /* number of VL servers in addr list */
+ unsigned short vl_curr_svix; /* current server index */
+ struct in_addr vl_addrs[AFS_CELL_MAX_ADDRS]; /* cell VL server addresses */
+
+ char name[0]; /* cell name - must go last */
+};
+
+/*
+ * entry in the cached volume location catalogue
+ */
+struct afs_cache_vlocation {
+ /* volume name (lowercase, padded with NULs) */
+ uint8_t name[AFS_MAXVOLNAME + 1];
+
+ uint8_t nservers; /* number of entries used in servers[] */
+ uint8_t vidmask; /* voltype mask for vid[] */
+ uint8_t srvtmask[8]; /* voltype masks for servers[] */
+#define AFS_VOL_VTM_RW 0x01 /* R/W version of the volume is available (on this server) */
+#define AFS_VOL_VTM_RO 0x02 /* R/O version of the volume is available (on this server) */
+#define AFS_VOL_VTM_BAK 0x04 /* backup version of the volume is available (on this server) */
+
+ afs_volid_t vid[3]; /* volume IDs for R/W, R/O and Bak volumes */
+ struct in_addr servers[8]; /* fileserver addresses */
+ time_t rtime; /* last retrieval time */
+};
+
+/*
+ * volume -> vnode hash table entry
+ */
+struct afs_cache_vhash {
+ afs_voltype_t vtype; /* which volume variation */
+ uint8_t hash_bucket; /* which hash bucket this represents */
+} __attribute__((packed));
+
+/*
+ * AFS volume location record
+ */
+struct afs_vlocation {
+ atomic_t usage;
+ time_t time_of_death; /* time at which put reduced usage to 0 */
+ struct list_head link; /* link in cell volume location list */
+ struct list_head grave; /* link in master graveyard list */
+ struct list_head update; /* link in master update list */
+ struct afs_cell *cell; /* cell to which volume belongs */
+#ifdef AFS_CACHING_SUPPORT
+ struct cachefs_cookie *cache; /* caching cookie */
+#endif
+ struct afs_cache_vlocation vldb; /* volume information DB record */
+ struct afs_volume *vols[3]; /* volume access record pointer (index by type) */
+ wait_queue_head_t waitq; /* status change waitqueue */
+ time_t update_at; /* time at which record should be updated */
+ spinlock_t lock; /* access lock */
+ afs_vlocation_state_t state; /* volume location state */
+ unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */
+ unsigned short upd_busy_cnt; /* EBUSY count during update */
+ bool valid; /* T if valid */
+};
+
+/*
+ * AFS fileserver record
+ */
+struct afs_server {
+ atomic_t usage;
+ time_t time_of_death; /* time at which put reduced usage to 0 */
+ struct in_addr addr; /* server address */
+ struct afs_cell *cell; /* cell in which server resides */
+ struct list_head link; /* link in cell's server list */
+ struct list_head grave; /* link in master graveyard list */
+ struct rb_node master_rb; /* link in master by-addr tree */
+ struct rw_semaphore sem; /* access lock */
+
+ /* file service access */
+ struct rb_root fs_vnodes; /* vnodes backed by this server (ordered by FID) */
+ unsigned long fs_act_jif; /* time at which last activity occurred */
+ unsigned long fs_dead_jif; /* time at which no longer to be considered dead */
+ spinlock_t fs_lock; /* access lock */
+ int fs_state; /* 0 or reason FS currently marked dead (-errno) */
+
+ /* callback promise management */
+ struct rb_root cb_promises; /* vnode expiration list (ordered earliest first) */
+ struct delayed_work cb_updater; /* callback updater */
+ struct delayed_work cb_break_work; /* collected break dispatcher */
+ wait_queue_head_t cb_break_waitq; /* space available in cb_break waitqueue */
+ spinlock_t cb_lock; /* access lock */
+ struct afs_callback cb_break[64]; /* ring of callbacks awaiting breaking */
+ atomic_t cb_break_n; /* number of pending breaks */
+ u8 cb_break_head; /* head of callback breaking ring */
+ u8 cb_break_tail; /* tail of callback breaking ring */
+};
+
+/*
+ * AFS volume access record
+ */
+struct afs_volume {
+ atomic_t usage;
+ struct afs_cell *cell; /* cell to which belongs (unrefd ptr) */
+ struct afs_vlocation *vlocation; /* volume location */
+#ifdef AFS_CACHING_SUPPORT
+ struct cachefs_cookie *cache; /* caching cookie */
+#endif
+ afs_volid_t vid; /* volume ID */
+ afs_voltype_t type; /* type of volume */
+ char type_force; /* force volume type (suppress R/O -> R/W) */
+ unsigned short nservers; /* number of server slots filled */
+ unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */
+ struct afs_server *servers[8]; /* servers on which volume resides (ordered) */
+ struct rw_semaphore server_sem; /* lock for accessing current server */
+};
+
+/*
+ * vnode catalogue entry
+ */
+struct afs_cache_vnode {
+ afs_vnodeid_t vnode_id; /* vnode ID */
+ unsigned vnode_unique; /* vnode ID uniquifier */
+ afs_dataversion_t data_version; /* data version */
+};
+
+/*
+ * AFS inode private data
+ */
+struct afs_vnode {
+ struct inode vfs_inode; /* the VFS's inode record */
+
+ struct afs_volume *volume; /* volume on which vnode resides */
+ struct afs_server *server; /* server currently supplying this file */
+ struct afs_fid fid; /* the file identifier for this inode */
+ struct afs_file_status status; /* AFS status info for this file */
+#ifdef AFS_CACHING_SUPPORT
+ struct cachefs_cookie *cache; /* caching cookie */
+#endif
+ struct afs_permits *permits; /* cache of permits so far obtained */
+ struct mutex permits_lock; /* lock for altering permits list */
+ struct mutex validate_lock; /* lock for validating this vnode */
+ wait_queue_head_t update_waitq; /* status fetch waitqueue */
+ int update_cnt; /* number of outstanding ops that will update the
+ * status */
+ spinlock_t lock; /* waitqueue/flags lock */
+ unsigned long flags;
+#define AFS_VNODE_CB_BROKEN 0 /* set if vnode's callback was broken */
+#define AFS_VNODE_UNSET 1 /* set if vnode attributes not yet set */
+#define AFS_VNODE_MODIFIED 2 /* set if vnode's data modified */
+#define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */
+#define AFS_VNODE_DELETED 4 /* set if vnode deleted on server */
+#define AFS_VNODE_MOUNTPOINT 5 /* set if vnode is a mountpoint symlink */
+
+ long acl_order; /* ACL check count (callback break count) */
+
+ /* outstanding callback notification on this file */
+ struct rb_node server_rb; /* link in server->fs_vnodes */
+ struct rb_node cb_promise; /* link in server->cb_promises */
+ struct work_struct cb_broken_work; /* work to be done on callback break */
+ time_t cb_expires; /* time at which callback expires */
+ time_t cb_expires_at; /* time used to order cb_promise */
+ unsigned cb_version; /* callback version */
+ unsigned cb_expiry; /* callback expiry time */
+ afs_callback_type_t cb_type; /* type of callback */
+ bool cb_promised; /* true if promise still holds */
+};
+
+/*
+ * cached security record for one user's attempt to access a vnode
+ */
+struct afs_permit {
+ struct key *key; /* RxRPC ticket holding a security context */
+ afs_access_t access_mask; /* access mask for this key */
+};
+
+/*
+ * cache of security records from attempts to access a vnode
+ */
+struct afs_permits {
+ struct rcu_head rcu; /* disposal procedure */
+ int count; /* number of records */
+ struct afs_permit permits[0]; /* the permits so far examined */
+};
+
+/*
+ * record of one of a system's set of network interfaces
+ */
+struct afs_interface {
+ unsigned index; /* interface index */
+ struct in_addr address; /* IPv4 address bound to interface */
+ struct in_addr netmask; /* netmask applied to address */
+ unsigned mtu; /* MTU of interface */
+};
+
+/*
+ * UUID definition [internet draft]
+ * - the timestamp is a 60-bit value, split 32/16/12, and goes in 100ns
+ * increments since midnight 15th October 1582
+ * - add AFS_UUID_TO_UNIX_TIME to convert unix time in 100ns units to UUID
+ * time
+ * - the clock sequence is a 14-bit counter to avoid duplicate times
+ */
+struct afs_uuid {
+ u32 time_low; /* low part of timestamp */
+ u16 time_mid; /* mid part of timestamp */
+ u16 time_hi_and_version; /* high part of timestamp and version */
+#define AFS_UUID_TO_UNIX_TIME 0x01b21dd213814000
+#define AFS_UUID_TIMEHI_MASK 0x0fff
+#define AFS_UUID_VERSION_TIME 0x1000 /* time-based UUID */
+#define AFS_UUID_VERSION_NAME 0x3000 /* name-based UUID */
+#define AFS_UUID_VERSION_RANDOM 0x4000 /* (pseudo-)random generated UUID */
+ u8 clock_seq_hi_and_reserved; /* clock seq hi and variant */
+#define AFS_UUID_CLOCKHI_MASK 0x3f
+#define AFS_UUID_VARIANT_STD 0x80
+ u8 clock_seq_low; /* clock seq low */
+ u8 node[6]; /* spatially unique node ID (MAC addr) */
+};
+
+/*****************************************************************************/
+/*
+ * callback.c
+ */
+extern void afs_init_callback_state(struct afs_server *);
+extern void afs_broken_callback_work(struct work_struct *);
+extern void afs_break_callbacks(struct afs_server *, size_t,
+ struct afs_callback[]);
+extern void afs_discard_callback_on_delete(struct afs_vnode *);
+extern void afs_give_up_callback(struct afs_vnode *);
+extern void afs_dispatch_give_up_callbacks(struct work_struct *);
+extern void afs_flush_callback_breaks(struct afs_server *);
+extern int __init afs_callback_update_init(void);
+extern void __exit afs_callback_update_kill(void);
+
/*
* cell.c
*/
extern struct cachefs_index_def afs_cache_cell_index_def;
#endif
+#define afs_get_cell(C) do { atomic_inc(&(C)->usage); } while(0)
+extern int afs_cell_init(char *);
+extern struct afs_cell *afs_cell_create(const char *, char *);
+extern struct afs_cell *afs_cell_lookup(const char *, unsigned);
+extern struct afs_cell *afs_grab_cell(struct afs_cell *);
+extern void afs_put_cell(struct afs_cell *);
+extern void afs_cell_purge(void);
+
+/*
+ * cmservice.c
+ */
+extern bool afs_cm_incoming_call(struct afs_call *);
+
/*
* dir.c
*/
extern const struct inode_operations afs_dir_inode_operations;
extern const struct file_operations afs_dir_file_operations;
+extern int afs_permission(struct inode *, int, struct nameidata *);
+
/*
* file.c
*/
extern const struct address_space_operations afs_fs_aops;
extern const struct inode_operations afs_file_inode_operations;
+extern const struct file_operations afs_file_operations;
+
+extern int afs_open(struct inode *, struct file *);
+extern int afs_release(struct inode *, struct file *);
#ifdef AFS_CACHING_SUPPORT
-extern int afs_cache_get_page_cookie(struct page *page,
- struct cachefs_page **_page_cookie);
+extern int afs_cache_get_page_cookie(struct page *, struct cachefs_page **);
#endif
/*
- * inode.c
+ * fsclient.c
*/
-extern int afs_iget(struct super_block *sb, struct afs_fid *fid,
- struct inode **_inode);
-extern int afs_inode_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
-extern void afs_clear_inode(struct inode *inode);
+extern int afs_fs_fetch_file_status(struct afs_server *, struct key *,
+ struct afs_vnode *, struct afs_volsync *,
+ const struct afs_wait_mode *);
+extern int afs_fs_give_up_callbacks(struct afs_server *,
+ const struct afs_wait_mode *);
+extern int afs_fs_fetch_data(struct afs_server *, struct key *,
+ struct afs_vnode *, off_t, size_t, struct page *,
+ const struct afs_wait_mode *);
+extern int afs_fs_create(struct afs_server *, struct key *,
+ struct afs_vnode *, const char *, umode_t,
+ struct afs_fid *, struct afs_file_status *,
+ struct afs_callback *,
+ const struct afs_wait_mode *);
+extern int afs_fs_remove(struct afs_server *, struct key *,
+ struct afs_vnode *, const char *, bool,
+ const struct afs_wait_mode *);
+extern int afs_fs_link(struct afs_server *, struct key *, struct afs_vnode *,
+ struct afs_vnode *, const char *,
+ const struct afs_wait_mode *);
+extern int afs_fs_symlink(struct afs_server *, struct key *,
+ struct afs_vnode *, const char *, const char *,
+ struct afs_fid *, struct afs_file_status *,
+ const struct afs_wait_mode *);
+extern int afs_fs_rename(struct afs_server *, struct key *,
+ struct afs_vnode *, const char *,
+ struct afs_vnode *, const char *,
+ const struct afs_wait_mode *);
/*
- * key_afs.c
+ * inode.c
*/
-#ifdef CONFIG_KEYS
-extern int afs_key_register(void);
-extern void afs_key_unregister(void);
-#endif
+extern struct inode *afs_iget(struct super_block *, struct key *,
+ struct afs_fid *, struct afs_file_status *,
+ struct afs_callback *);
+extern int afs_validate(struct afs_vnode *, struct key *);
+extern int afs_inode_getattr(struct vfsmount *, struct dentry *,
+ struct kstat *);
+extern void afs_zap_permits(struct rcu_head *);
+extern void afs_clear_inode(struct inode *);
/*
* main.c
*/
+extern struct afs_uuid afs_uuid;
#ifdef AFS_CACHING_SUPPORT
extern struct cachefs_netfs afs_cache_netfs;
#endif
+/*
+ * misc.c
+ */
+extern int afs_abort_to_error(u32);
+
/*
* mntpt.c
*/
extern const struct inode_operations afs_mntpt_inode_operations;
extern const struct file_operations afs_mntpt_file_operations;
-extern struct afs_timer afs_mntpt_expiry_timer;
-extern struct afs_timer_ops afs_mntpt_expiry_timer_ops;
extern unsigned long afs_mntpt_expiry_timeout;
-extern int afs_mntpt_check_symlink(struct afs_vnode *vnode);
+extern int afs_mntpt_check_symlink(struct afs_vnode *, struct key *);
+extern void afs_mntpt_kill_timer(void);
+extern void afs_umount_begin(struct vfsmount *, int);
+
+/*
+ * proc.c
+ */
+extern int afs_proc_init(void);
+extern void afs_proc_cleanup(void);
+extern int afs_proc_cell_setup(struct afs_cell *);
+extern void afs_proc_cell_remove(struct afs_cell *);
+
+/*
+ * rxrpc.c
+ */
+extern int afs_open_socket(void);
+extern void afs_close_socket(void);
+extern int afs_make_call(struct in_addr *, struct afs_call *, gfp_t,
+ const struct afs_wait_mode *);
+extern struct afs_call *afs_alloc_flat_call(const struct afs_call_type *,
+ size_t, size_t);
+extern void afs_flat_call_destructor(struct afs_call *);
+extern void afs_transfer_reply(struct afs_call *, struct sk_buff *);
+extern void afs_send_empty_reply(struct afs_call *);
+extern void afs_send_simple_reply(struct afs_call *, const void *, size_t);
+extern int afs_extract_data(struct afs_call *, struct sk_buff *, bool, void *,
+ size_t);
+
+/*
+ * security.c
+ */
+extern void afs_clear_permits(struct afs_vnode *);
+extern void afs_cache_permit(struct afs_vnode *, struct key *, long);
+extern struct key *afs_request_key(struct afs_cell *);
+extern int afs_permission(struct inode *, int, struct nameidata *);
+
+/*
+ * server.c
+ */
+extern spinlock_t afs_server_peer_lock;
+
+#define afs_get_server(S) \
+do { \
+ _debug("GET SERVER %d", atomic_read(&(S)->usage)); \
+ atomic_inc(&(S)->usage); \
+} while(0)
+
+extern struct afs_server *afs_lookup_server(struct afs_cell *,
+ const struct in_addr *);
+extern struct afs_server *afs_find_server(const struct in_addr *);
+extern void afs_put_server(struct afs_server *);
+extern void __exit afs_purge_servers(void);
/*
* super.c
extern int afs_fs_init(void);
extern void afs_fs_exit(void);
-#define AFS_CB_HASH_COUNT (PAGE_SIZE / sizeof(struct list_head))
+/*
+ * use-rtnetlink.c
+ */
+extern int afs_get_ipv4_interfaces(struct afs_interface *, size_t, bool);
+extern int afs_get_MAC_address(u8 [6]);
-extern struct list_head afs_cb_hash_tbl[];
-extern spinlock_t afs_cb_hash_lock;
+/*
+ * vlclient.c
+ */
+#ifdef AFS_CACHING_SUPPORT
+extern struct cachefs_index_def afs_vlocation_cache_index_def;
+#endif
-#define afs_cb_hash(SRV,FID) \
- afs_cb_hash_tbl[((unsigned long)(SRV) + \
- (FID)->vid + (FID)->vnode + (FID)->unique) % \
- AFS_CB_HASH_COUNT]
+extern int afs_vl_get_entry_by_name(struct in_addr *, struct key *,
+ const char *, struct afs_cache_vlocation *,
+ const struct afs_wait_mode *);
+extern int afs_vl_get_entry_by_id(struct in_addr *, struct key *,
+ afs_volid_t, afs_voltype_t,
+ struct afs_cache_vlocation *,
+ const struct afs_wait_mode *);
/*
- * proc.c
+ * vlocation.c
*/
-extern int afs_proc_init(void);
-extern void afs_proc_cleanup(void);
-extern int afs_proc_cell_setup(struct afs_cell *cell);
-extern void afs_proc_cell_remove(struct afs_cell *cell);
+#define afs_get_vlocation(V) do { atomic_inc(&(V)->usage); } while(0)
+
+extern int __init afs_vlocation_update_init(void);
+extern struct afs_vlocation *afs_vlocation_lookup(struct afs_cell *,
+ struct key *,
+ const char *, size_t);
+extern void afs_put_vlocation(struct afs_vlocation *);
+extern void __exit afs_vlocation_purge(void);
+
+/*
+ * vnode.c
+ */
+#ifdef AFS_CACHING_SUPPORT
+extern struct cachefs_index_def afs_vnode_cache_index_def;
+#endif
+
+extern struct afs_timer_ops afs_vnode_cb_timed_out_ops;
+
+static inline struct afs_vnode *AFS_FS_I(struct inode *inode)
+{
+ return container_of(inode, struct afs_vnode, vfs_inode);
+}
+
+static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode)
+{
+ return &vnode->vfs_inode;
+}
+
+extern void afs_vnode_finalise_status_update(struct afs_vnode *,
+ struct afs_server *);
+extern int afs_vnode_fetch_status(struct afs_vnode *, struct afs_vnode *,
+ struct key *);
+extern int afs_vnode_fetch_data(struct afs_vnode *, struct key *,
+ off_t, size_t, struct page *);
+extern int afs_vnode_create(struct afs_vnode *, struct key *, const char *,
+ umode_t, struct afs_fid *, struct afs_file_status *,
+ struct afs_callback *, struct afs_server **);
+extern int afs_vnode_remove(struct afs_vnode *, struct key *, const char *,
+ bool);
+extern int afs_vnode_link(struct afs_vnode *, struct afs_vnode *, struct key *,
+ const char *);
+extern int afs_vnode_symlink(struct afs_vnode *, struct key *, const char *,
+ const char *, struct afs_fid *,
+ struct afs_file_status *, struct afs_server **);
+extern int afs_vnode_rename(struct afs_vnode *, struct afs_vnode *,
+ struct key *, const char *, const char *);
+
+/*
+ * volume.c
+ */
+#ifdef AFS_CACHING_SUPPORT
+extern struct cachefs_index_def afs_volume_cache_index_def;
+#endif
+
+#define afs_get_volume(V) do { atomic_inc(&(V)->usage); } while(0)
+
+extern void afs_put_volume(struct afs_volume *);
+extern struct afs_volume *afs_volume_lookup(struct afs_mount_params *);
+extern struct afs_server *afs_volume_pick_fileserver(struct afs_vnode *);
+extern int afs_volume_release_fileserver(struct afs_vnode *,
+ struct afs_server *, int);
+
+/*****************************************************************************/
+/*
+ * debug tracing
+ */
+extern unsigned afs_debug;
+
+#define dbgprintk(FMT,...) \
+ printk("[%x%-6.6s] "FMT"\n", smp_processor_id(), current->comm ,##__VA_ARGS__)
+
+/* make sure we maintain the format strings, even when debugging is disabled */
+static inline __attribute__((format(printf,1,2)))
+void _dbprintk(const char *fmt, ...)
+{
+}
+
+#define kenter(FMT,...) dbgprintk("==> %s("FMT")",__FUNCTION__ ,##__VA_ARGS__)
+#define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__FUNCTION__ ,##__VA_ARGS__)
+#define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__)
+
+
+#if defined(__KDEBUG)
+#define _enter(FMT,...) kenter(FMT,##__VA_ARGS__)
+#define _leave(FMT,...) kleave(FMT,##__VA_ARGS__)
+#define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__)
+
+#elif defined(CONFIG_AFS_DEBUG)
+#define AFS_DEBUG_KENTER 0x01
+#define AFS_DEBUG_KLEAVE 0x02
+#define AFS_DEBUG_KDEBUG 0x04
+
+#define _enter(FMT,...) \
+do { \
+ if (unlikely(afs_debug & AFS_DEBUG_KENTER)) \
+ kenter(FMT,##__VA_ARGS__); \
+} while (0)
+
+#define _leave(FMT,...) \
+do { \
+ if (unlikely(afs_debug & AFS_DEBUG_KLEAVE)) \
+ kleave(FMT,##__VA_ARGS__); \
+} while (0)
+
+#define _debug(FMT,...) \
+do { \
+ if (unlikely(afs_debug & AFS_DEBUG_KDEBUG)) \
+ kdebug(FMT,##__VA_ARGS__); \
+} while (0)
+
+#else
+#define _enter(FMT,...) _dbprintk("==> %s("FMT")",__FUNCTION__ ,##__VA_ARGS__)
+#define _leave(FMT,...) _dbprintk("<== %s()"FMT"",__FUNCTION__ ,##__VA_ARGS__)
+#define _debug(FMT,...) _dbprintk(" "FMT ,##__VA_ARGS__)
+#endif
+
+/*
+ * debug assertion checking
+ */
+#if 1 // defined(__KDEBUGALL)
+
+#define ASSERT(X) \
+do { \
+ if (unlikely(!(X))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "AFS: Assertion failed\n"); \
+ BUG(); \
+ } \
+} while(0)
+
+#define ASSERTCMP(X, OP, Y) \
+do { \
+ if (unlikely(!((X) OP (Y)))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "AFS: Assertion failed\n"); \
+ printk(KERN_ERR "%lu " #OP " %lu is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ BUG(); \
+ } \
+} while(0)
+
+#define ASSERTIF(C, X) \
+do { \
+ if (unlikely((C) && !(X))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "AFS: Assertion failed\n"); \
+ BUG(); \
+ } \
+} while(0)
+
+#define ASSERTIFCMP(C, X, OP, Y) \
+do { \
+ if (unlikely((C) && !((X) OP (Y)))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "AFS: Assertion failed\n"); \
+ printk(KERN_ERR "%lu " #OP " %lu is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ BUG(); \
+ } \
+} while(0)
+
+#else
+
+#define ASSERT(X) \
+do { \
+} while(0)
+
+#define ASSERTCMP(X, OP, Y) \
+do { \
+} while(0)
+
+#define ASSERTIF(C, X) \
+do { \
+} while(0)
+
+#define ASSERTIFCMP(C, X, OP, Y) \
+do { \
+} while(0)
-#endif /* AFS_INTERNAL_H */
+#endif /* __KDEBUGALL */
+++ /dev/null
-/* kafsasyncd.c: AFS asynchronous operation daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- *
- * The AFS async daemon is used to the following:
- * - probe "dead" servers to see whether they've come back to life yet.
- * - probe "live" servers that we haven't talked to for a while to see if they are better
- * candidates for serving than what we're currently using
- * - poll volume location servers to keep up to date volume location lists
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/completion.h>
-#include <linux/freezer.h>
-#include "cell.h"
-#include "server.h"
-#include "volume.h"
-#include "kafsasyncd.h"
-#include "kafstimod.h"
-#include <rxrpc/call.h>
-#include <asm/errno.h>
-#include "internal.h"
-
-static DECLARE_COMPLETION(kafsasyncd_alive);
-static DECLARE_COMPLETION(kafsasyncd_dead);
-static DECLARE_WAIT_QUEUE_HEAD(kafsasyncd_sleepq);
-static struct task_struct *kafsasyncd_task;
-static int kafsasyncd_die;
-
-static int kafsasyncd(void *arg);
-
-static LIST_HEAD(kafsasyncd_async_attnq);
-static LIST_HEAD(kafsasyncd_async_busyq);
-static DEFINE_SPINLOCK(kafsasyncd_async_lock);
-
-static void kafsasyncd_null_call_attn_func(struct rxrpc_call *call)
-{
-}
-
-static void kafsasyncd_null_call_error_func(struct rxrpc_call *call)
-{
-}
-
-/*****************************************************************************/
-/*
- * start the async daemon
- */
-int afs_kafsasyncd_start(void)
-{
- int ret;
-
- ret = kernel_thread(kafsasyncd, NULL, 0);
- if (ret < 0)
- return ret;
-
- wait_for_completion(&kafsasyncd_alive);
-
- return ret;
-} /* end afs_kafsasyncd_start() */
-
-/*****************************************************************************/
-/*
- * stop the async daemon
- */
-void afs_kafsasyncd_stop(void)
-{
- /* get rid of my daemon */
- kafsasyncd_die = 1;
- wake_up(&kafsasyncd_sleepq);
- wait_for_completion(&kafsasyncd_dead);
-
-} /* end afs_kafsasyncd_stop() */
-
-/*****************************************************************************/
-/*
- * probing daemon
- */
-static int kafsasyncd(void *arg)
-{
- struct afs_async_op *op;
- int die;
-
- DECLARE_WAITQUEUE(myself, current);
-
- kafsasyncd_task = current;
-
- printk("kAFS: Started kafsasyncd %d\n", current->pid);
-
- daemonize("kafsasyncd");
-
- complete(&kafsasyncd_alive);
-
- /* loop around looking for things to attend to */
- do {
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&kafsasyncd_sleepq, &myself);
-
- for (;;) {
- if (!list_empty(&kafsasyncd_async_attnq) ||
- signal_pending(current) ||
- kafsasyncd_die)
- break;
-
- schedule();
- set_current_state(TASK_INTERRUPTIBLE);
- }
-
- remove_wait_queue(&kafsasyncd_sleepq, &myself);
- set_current_state(TASK_RUNNING);
-
- try_to_freeze();
-
- /* discard pending signals */
- afs_discard_my_signals();
-
- die = kafsasyncd_die;
-
- /* deal with the next asynchronous operation requiring
- * attention */
- if (!list_empty(&kafsasyncd_async_attnq)) {
- struct afs_async_op *op;
-
- _debug("@@@ Begin Asynchronous Operation");
-
- op = NULL;
- spin_lock(&kafsasyncd_async_lock);
-
- if (!list_empty(&kafsasyncd_async_attnq)) {
- op = list_entry(kafsasyncd_async_attnq.next,
- struct afs_async_op, link);
- list_move_tail(&op->link,
- &kafsasyncd_async_busyq);
- }
-
- spin_unlock(&kafsasyncd_async_lock);
-
- _debug("@@@ Operation %p {%p}\n",
- op, op ? op->ops : NULL);
-
- if (op)
- op->ops->attend(op);
-
- _debug("@@@ End Asynchronous Operation");
- }
-
- } while(!die);
-
- /* need to kill all outstanding asynchronous operations before
- * exiting */
- kafsasyncd_task = NULL;
- spin_lock(&kafsasyncd_async_lock);
-
- /* fold the busy and attention queues together */
- list_splice_init(&kafsasyncd_async_busyq,
- &kafsasyncd_async_attnq);
-
- /* dequeue kafsasyncd from all their wait queues */
- list_for_each_entry(op, &kafsasyncd_async_attnq, link) {
- op->call->app_attn_func = kafsasyncd_null_call_attn_func;
- op->call->app_error_func = kafsasyncd_null_call_error_func;
- remove_wait_queue(&op->call->waitq, &op->waiter);
- }
-
- spin_unlock(&kafsasyncd_async_lock);
-
- /* abort all the operations */
- while (!list_empty(&kafsasyncd_async_attnq)) {
- op = list_entry(kafsasyncd_async_attnq.next, struct afs_async_op, link);
- list_del_init(&op->link);
-
- rxrpc_call_abort(op->call, -EIO);
- rxrpc_put_call(op->call);
- op->call = NULL;
-
- op->ops->discard(op);
- }
-
- /* and that's all */
- _leave("");
- complete_and_exit(&kafsasyncd_dead, 0);
-
-} /* end kafsasyncd() */
-
-/*****************************************************************************/
-/*
- * begin an operation
- * - place operation on busy queue
- */
-void afs_kafsasyncd_begin_op(struct afs_async_op *op)
-{
- _enter("");
-
- spin_lock(&kafsasyncd_async_lock);
-
- init_waitqueue_entry(&op->waiter, kafsasyncd_task);
- add_wait_queue(&op->call->waitq, &op->waiter);
-
- list_move_tail(&op->link, &kafsasyncd_async_busyq);
-
- spin_unlock(&kafsasyncd_async_lock);
-
- _leave("");
-} /* end afs_kafsasyncd_begin_op() */
-
-/*****************************************************************************/
-/*
- * request attention for an operation
- * - move to attention queue
- */
-void afs_kafsasyncd_attend_op(struct afs_async_op *op)
-{
- _enter("");
-
- spin_lock(&kafsasyncd_async_lock);
-
- list_move_tail(&op->link, &kafsasyncd_async_attnq);
-
- spin_unlock(&kafsasyncd_async_lock);
-
- wake_up(&kafsasyncd_sleepq);
-
- _leave("");
-} /* end afs_kafsasyncd_attend_op() */
-
-/*****************************************************************************/
-/*
- * terminate an operation
- * - remove from either queue
- */
-void afs_kafsasyncd_terminate_op(struct afs_async_op *op)
-{
- _enter("");
-
- spin_lock(&kafsasyncd_async_lock);
-
- if (!list_empty(&op->link)) {
- list_del_init(&op->link);
- remove_wait_queue(&op->call->waitq, &op->waiter);
- }
-
- spin_unlock(&kafsasyncd_async_lock);
-
- wake_up(&kafsasyncd_sleepq);
-
- _leave("");
-} /* end afs_kafsasyncd_terminate_op() */
+++ /dev/null
-/* kafsasyncd.h: AFS asynchronous operation daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_KAFSASYNCD_H
-#define _LINUX_AFS_KAFSASYNCD_H
-
-#include "types.h"
-
-struct afs_async_op;
-
-struct afs_async_op_ops {
- void (*attend)(struct afs_async_op *op);
- void (*discard)(struct afs_async_op *op);
-};
-
-/*****************************************************************************/
-/*
- * asynchronous operation record
- */
-struct afs_async_op
-{
- struct list_head link;
- struct afs_server *server; /* server being contacted */
- struct rxrpc_call *call; /* RxRPC call performing op */
- wait_queue_t waiter; /* wait queue for kafsasyncd */
- const struct afs_async_op_ops *ops; /* operations */
-};
-
-static inline void afs_async_op_init(struct afs_async_op *op,
- const struct afs_async_op_ops *ops)
-{
- INIT_LIST_HEAD(&op->link);
- op->call = NULL;
- op->ops = ops;
-}
-
-extern int afs_kafsasyncd_start(void);
-extern void afs_kafsasyncd_stop(void);
-
-extern void afs_kafsasyncd_begin_op(struct afs_async_op *op);
-extern void afs_kafsasyncd_attend_op(struct afs_async_op *op);
-extern void afs_kafsasyncd_terminate_op(struct afs_async_op *op);
-
-#endif /* _LINUX_AFS_KAFSASYNCD_H */
+++ /dev/null
-/* kafstimod.c: AFS timeout daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/completion.h>
-#include <linux/freezer.h>
-#include "cell.h"
-#include "volume.h"
-#include "kafstimod.h"
-#include <asm/errno.h>
-#include "internal.h"
-
-static DECLARE_COMPLETION(kafstimod_alive);
-static DECLARE_COMPLETION(kafstimod_dead);
-static DECLARE_WAIT_QUEUE_HEAD(kafstimod_sleepq);
-static int kafstimod_die;
-
-static LIST_HEAD(kafstimod_list);
-static DEFINE_SPINLOCK(kafstimod_lock);
-
-static int kafstimod(void *arg);
-
-/*****************************************************************************/
-/*
- * start the timeout daemon
- */
-int afs_kafstimod_start(void)
-{
- int ret;
-
- ret = kernel_thread(kafstimod, NULL, 0);
- if (ret < 0)
- return ret;
-
- wait_for_completion(&kafstimod_alive);
-
- return ret;
-} /* end afs_kafstimod_start() */
-
-/*****************************************************************************/
-/*
- * stop the timeout daemon
- */
-void afs_kafstimod_stop(void)
-{
- /* get rid of my daemon */
- kafstimod_die = 1;
- wake_up(&kafstimod_sleepq);
- wait_for_completion(&kafstimod_dead);
-
-} /* end afs_kafstimod_stop() */
-
-/*****************************************************************************/
-/*
- * timeout processing daemon
- */
-static int kafstimod(void *arg)
-{
- struct afs_timer *timer;
-
- DECLARE_WAITQUEUE(myself, current);
-
- printk("kAFS: Started kafstimod %d\n", current->pid);
-
- daemonize("kafstimod");
-
- complete(&kafstimod_alive);
-
- /* loop around looking for things to attend to */
- loop:
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&kafstimod_sleepq, &myself);
-
- for (;;) {
- unsigned long jif;
- signed long timeout;
-
- /* deal with the server being asked to die */
- if (kafstimod_die) {
- remove_wait_queue(&kafstimod_sleepq, &myself);
- _leave("");
- complete_and_exit(&kafstimod_dead, 0);
- }
-
- try_to_freeze();
-
- /* discard pending signals */
- afs_discard_my_signals();
-
- /* work out the time to elapse before the next event */
- spin_lock(&kafstimod_lock);
- if (list_empty(&kafstimod_list)) {
- timeout = MAX_SCHEDULE_TIMEOUT;
- }
- else {
- timer = list_entry(kafstimod_list.next,
- struct afs_timer, link);
- timeout = timer->timo_jif;
- jif = jiffies;
-
- if (time_before_eq((unsigned long) timeout, jif))
- goto immediate;
-
- else {
- timeout = (long) timeout - (long) jiffies;
- }
- }
- spin_unlock(&kafstimod_lock);
-
- schedule_timeout(timeout);
-
- set_current_state(TASK_INTERRUPTIBLE);
- }
-
- /* the thing on the front of the queue needs processing
- * - we come here with the lock held and timer pointing to the expired
- * entry
- */
- immediate:
- remove_wait_queue(&kafstimod_sleepq, &myself);
- set_current_state(TASK_RUNNING);
-
- _debug("@@@ Begin Timeout of %p", timer);
-
- /* dequeue the timer */
- list_del_init(&timer->link);
- spin_unlock(&kafstimod_lock);
-
- /* call the timeout function */
- timer->ops->timed_out(timer);
-
- _debug("@@@ End Timeout");
- goto loop;
-
-} /* end kafstimod() */
-
-/*****************************************************************************/
-/*
- * (re-)queue a timer
- */
-void afs_kafstimod_add_timer(struct afs_timer *timer, unsigned long timeout)
-{
- struct afs_timer *ptimer;
- struct list_head *_p;
-
- _enter("%p,%lu", timer, timeout);
-
- spin_lock(&kafstimod_lock);
-
- list_del(&timer->link);
-
- /* the timer was deferred or reset - put it back in the queue at the
- * right place */
- timer->timo_jif = jiffies + timeout;
-
- list_for_each(_p, &kafstimod_list) {
- ptimer = list_entry(_p, struct afs_timer, link);
- if (time_before(timer->timo_jif, ptimer->timo_jif))
- break;
- }
-
- list_add_tail(&timer->link, _p); /* insert before stopping point */
-
- spin_unlock(&kafstimod_lock);
-
- wake_up(&kafstimod_sleepq);
-
- _leave("");
-} /* end afs_kafstimod_add_timer() */
-
-/*****************************************************************************/
-/*
- * dequeue a timer
- * - returns 0 if the timer was deleted or -ENOENT if it wasn't queued
- */
-int afs_kafstimod_del_timer(struct afs_timer *timer)
-{
- int ret = 0;
-
- _enter("%p", timer);
-
- spin_lock(&kafstimod_lock);
-
- if (list_empty(&timer->link))
- ret = -ENOENT;
- else
- list_del_init(&timer->link);
-
- spin_unlock(&kafstimod_lock);
-
- wake_up(&kafstimod_sleepq);
-
- _leave(" = %d", ret);
- return ret;
-} /* end afs_kafstimod_del_timer() */
+++ /dev/null
-/* kafstimod.h: AFS timeout daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_KAFSTIMOD_H
-#define _LINUX_AFS_KAFSTIMOD_H
-
-#include "types.h"
-
-struct afs_timer;
-
-struct afs_timer_ops {
- /* called when the front of the timer queue has timed out */
- void (*timed_out)(struct afs_timer *timer);
-};
-
-/*****************************************************************************/
-/*
- * AFS timer/timeout record
- */
-struct afs_timer
-{
- struct list_head link; /* link in timer queue */
- unsigned long timo_jif; /* timeout time */
- const struct afs_timer_ops *ops; /* timeout expiry function */
-};
-
-static inline void afs_timer_init(struct afs_timer *timer,
- const struct afs_timer_ops *ops)
-{
- INIT_LIST_HEAD(&timer->link);
- timer->ops = ops;
-}
-
-extern int afs_kafstimod_start(void);
-extern void afs_kafstimod_stop(void);
-
-extern void afs_kafstimod_add_timer(struct afs_timer *timer,
- unsigned long timeout);
-extern int afs_kafstimod_del_timer(struct afs_timer *timer);
-
-#endif /* _LINUX_AFS_KAFSTIMOD_H */
-/* main.c: AFS client file system
+/* AFS client file system
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/completion.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/call.h>
-#include <rxrpc/peer.h>
-#include "cache.h"
-#include "cell.h"
-#include "server.h"
-#include "fsclient.h"
-#include "cmservice.h"
-#include "kafstimod.h"
-#include "kafsasyncd.h"
#include "internal.h"
-struct rxrpc_transport *afs_transport;
-
-static int afs_adding_peer(struct rxrpc_peer *peer);
-static void afs_discarding_peer(struct rxrpc_peer *peer);
-
-
MODULE_DESCRIPTION("AFS Client File System");
MODULE_AUTHOR("Red Hat, Inc.");
MODULE_LICENSE("GPL");
+unsigned afs_debug;
+module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(afs_debug, "AFS debugging mask");
+
static char *rootcell;
module_param(rootcell, charp, 0);
MODULE_PARM_DESC(rootcell, "root AFS cell name and VL server IP addr list");
-
-static struct rxrpc_peer_ops afs_peer_ops = {
- .adding = afs_adding_peer,
- .discarding = afs_discarding_peer,
-};
-
-struct list_head afs_cb_hash_tbl[AFS_CB_HASH_COUNT];
-DEFINE_SPINLOCK(afs_cb_hash_lock);
-
#ifdef AFS_CACHING_SUPPORT
static struct cachefs_netfs_operations afs_cache_ops = {
.get_page_cookie = afs_cache_get_page_cookie,
};
#endif
-/*****************************************************************************/
+struct afs_uuid afs_uuid;
+
+/*
+ * get a client UUID
+ */
+static int __init afs_get_client_UUID(void)
+{
+ struct timespec ts;
+ u64 uuidtime;
+ u16 clockseq;
+ int ret;
+
+ /* read the MAC address of one of the external interfaces and construct
+ * a UUID from it */
+ ret = afs_get_MAC_address(afs_uuid.node);
+ if (ret < 0)
+ return ret;
+
+ getnstimeofday(&ts);
+ uuidtime = (u64) ts.tv_sec * 1000 * 1000 * 10;
+ uuidtime += ts.tv_nsec / 100;
+ uuidtime += AFS_UUID_TO_UNIX_TIME;
+ afs_uuid.time_low = uuidtime;
+ afs_uuid.time_mid = uuidtime >> 32;
+ afs_uuid.time_hi_and_version = (uuidtime >> 48) & AFS_UUID_TIMEHI_MASK;
+ afs_uuid.time_hi_and_version = AFS_UUID_VERSION_TIME;
+
+ get_random_bytes(&clockseq, 2);
+ afs_uuid.clock_seq_low = clockseq;
+ afs_uuid.clock_seq_hi_and_reserved =
+ (clockseq >> 8) & AFS_UUID_CLOCKHI_MASK;
+ afs_uuid.clock_seq_hi_and_reserved = AFS_UUID_VARIANT_STD;
+
+ _debug("AFS UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ afs_uuid.time_low,
+ afs_uuid.time_mid,
+ afs_uuid.time_hi_and_version,
+ afs_uuid.clock_seq_hi_and_reserved,
+ afs_uuid.clock_seq_low,
+ afs_uuid.node[0], afs_uuid.node[1], afs_uuid.node[2],
+ afs_uuid.node[3], afs_uuid.node[4], afs_uuid.node[5]);
+
+ return 0;
+}
+
/*
* initialise the AFS client FS module
*/
static int __init afs_init(void)
{
- int loop, ret;
+ int ret;
printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 registering.\n");
- /* initialise the callback hash table */
- spin_lock_init(&afs_cb_hash_lock);
- for (loop = AFS_CB_HASH_COUNT - 1; loop >= 0; loop--)
- INIT_LIST_HEAD(&afs_cb_hash_tbl[loop]);
+ ret = afs_get_client_UUID();
+ if (ret < 0)
+ return ret;
/* register the /proc stuff */
ret = afs_proc_init();
/* we want to be able to cache */
ret = cachefs_register_netfs(&afs_cache_netfs,
&afs_cache_cell_index_def);
- if (ret < 0)
- goto error;
-#endif
-
-#ifdef CONFIG_KEYS_TURNED_OFF
- ret = afs_key_register();
if (ret < 0)
goto error_cache;
#endif
/* initialise the cell DB */
ret = afs_cell_init(rootcell);
if (ret < 0)
- goto error_keys;
+ goto error_cell_init;
- /* start the timeout daemon */
- ret = afs_kafstimod_start();
+ /* initialise the VL update process */
+ ret = afs_vlocation_update_init();
if (ret < 0)
- goto error_keys;
+ goto error_vl_update_init;
- /* start the async operation daemon */
- ret = afs_kafsasyncd_start();
- if (ret < 0)
- goto error_kafstimod;
+ /* initialise the callback update process */
+ ret = afs_callback_update_init();
/* create the RxRPC transport */
- ret = rxrpc_create_transport(7001, &afs_transport);
+ ret = afs_open_socket();
if (ret < 0)
- goto error_kafsasyncd;
-
- afs_transport->peer_ops = &afs_peer_ops;
+ goto error_open_socket;
/* register the filesystems */
ret = afs_fs_init();
if (ret < 0)
- goto error_transport;
+ goto error_fs;
return ret;
- error_transport:
- rxrpc_put_transport(afs_transport);
- error_kafsasyncd:
- afs_kafsasyncd_stop();
- error_kafstimod:
- afs_kafstimod_stop();
- error_keys:
-#ifdef CONFIG_KEYS_TURNED_OFF
- afs_key_unregister();
- error_cache:
-#endif
+error_fs:
+ afs_close_socket();
+error_open_socket:
+error_vl_update_init:
+error_cell_init:
#ifdef AFS_CACHING_SUPPORT
cachefs_unregister_netfs(&afs_cache_netfs);
- error:
+error_cache:
#endif
+ afs_callback_update_kill();
+ afs_vlocation_purge();
afs_cell_purge();
afs_proc_cleanup();
printk(KERN_ERR "kAFS: failed to register: %d\n", ret);
return ret;
-} /* end afs_init() */
+}
/* XXX late_initcall is kludgy, but the only alternative seems to create
* a transport upon the first mount, which is worse. Or is it?
*/
late_initcall(afs_init); /* must be called after net/ to create socket */
-/*****************************************************************************/
+
/*
* clean up on module removal
*/
printk(KERN_INFO "kAFS: Red Hat AFS client v0.1 unregistering.\n");
afs_fs_exit();
- rxrpc_put_transport(afs_transport);
- afs_kafstimod_stop();
- afs_kafsasyncd_stop();
+ afs_close_socket();
+ afs_purge_servers();
+ afs_callback_update_kill();
+ afs_vlocation_purge();
+ flush_scheduled_work();
afs_cell_purge();
-#ifdef CONFIG_KEYS_TURNED_OFF
- afs_key_unregister();
-#endif
#ifdef AFS_CACHING_SUPPORT
cachefs_unregister_netfs(&afs_cache_netfs);
#endif
afs_proc_cleanup();
-
-} /* end afs_exit() */
-
-module_exit(afs_exit);
-
-/*****************************************************************************/
-/*
- * notification that new peer record is being added
- * - called from krxsecd
- * - return an error to induce an abort
- * - mustn't sleep (caller holds an rwlock)
- */
-static int afs_adding_peer(struct rxrpc_peer *peer)
-{
- struct afs_server *server;
- int ret;
-
- _debug("kAFS: Adding new peer %08x\n", ntohl(peer->addr.s_addr));
-
- /* determine which server the peer resides in (if any) */
- ret = afs_server_find_by_peer(peer, &server);
- if (ret < 0)
- return ret; /* none that we recognise, so abort */
-
- _debug("Server %p{u=%d}\n", server, atomic_read(&server->usage));
-
- _debug("Cell %p{u=%d}\n",
- server->cell, atomic_read(&server->cell->usage));
-
- /* cross-point the structs under a global lock */
- spin_lock(&afs_server_peer_lock);
- peer->user = server;
- server->peer = peer;
- spin_unlock(&afs_server_peer_lock);
-
- afs_put_server(server);
-
- return 0;
-} /* end afs_adding_peer() */
-
-/*****************************************************************************/
-/*
- * notification that a peer record is being discarded
- * - called from krxiod or krxsecd
- */
-static void afs_discarding_peer(struct rxrpc_peer *peer)
-{
- struct afs_server *server;
-
- _enter("%p",peer);
-
- _debug("Discarding peer %08x (rtt=%lu.%lumS)\n",
- ntohl(peer->addr.s_addr),
- (long) (peer->rtt / 1000),
- (long) (peer->rtt % 1000));
-
- /* uncross-point the structs under a global lock */
- spin_lock(&afs_server_peer_lock);
- server = peer->user;
- if (server) {
- peer->user = NULL;
- server->peer = NULL;
- }
- spin_unlock(&afs_server_peer_lock);
-
- _leave("");
-
-} /* end afs_discarding_peer() */
-
-/*****************************************************************************/
-/*
- * clear the dead space between task_struct and kernel stack
- * - called by supplying -finstrument-functions to gcc
- */
-#if 0
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-__attribute__((no_instrument_function));
-
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-{
- asm volatile(" movl %%esp,%%edi \n"
- " andl %0,%%edi \n"
- " addl %1,%%edi \n"
- " movl %%esp,%%ecx \n"
- " subl %%edi,%%ecx \n"
- " shrl $2,%%ecx \n"
- " movl $0xedededed,%%eax \n"
- " rep stosl \n"
- :
- : "i"(~(THREAD_SIZE - 1)), "i"(sizeof(struct thread_info))
- : "eax", "ecx", "edi", "memory", "cc"
- );
}
-void __cyg_profile_func_exit(void *this_fn, void *call_site)
-__attribute__((no_instrument_function));
-
-void __cyg_profile_func_exit(void *this_fn, void *call_site)
-{
- asm volatile(" movl %%esp,%%edi \n"
- " andl %0,%%edi \n"
- " addl %1,%%edi \n"
- " movl %%esp,%%ecx \n"
- " subl %%edi,%%ecx \n"
- " shrl $2,%%ecx \n"
- " movl $0xdadadada,%%eax \n"
- " rep stosl \n"
- :
- : "i"(~(THREAD_SIZE - 1)), "i"(sizeof(struct thread_info))
- : "eax", "ecx", "edi", "memory", "cc"
- );
-}
-#endif
+module_exit(afs_exit);
-/* misc.c: miscellaneous bits
+/* miscellaneous bits
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
-#include "errors.h"
#include "internal.h"
+#include "afs_fs.h"
-/*****************************************************************************/
/*
* convert an AFS abort code to a Linux error number
*/
-int afs_abort_to_error(int abortcode)
+int afs_abort_to_error(u32 abort_code)
{
- switch (abortcode) {
+ switch (abort_code) {
+ case 13: return -EACCES;
+ case 30: return -EROFS;
case VSALVAGE: return -EIO;
case VNOVNODE: return -ENOENT;
- case VNOVOL: return -ENXIO;
+ case VNOVOL: return -ENOMEDIUM;
case VVOLEXISTS: return -EEXIST;
case VNOSERVICE: return -EIO;
case VOFFLINE: return -ENOENT;
case VOVERQUOTA: return -EDQUOT;
case VBUSY: return -EBUSY;
case VMOVED: return -ENXIO;
- default: return -EIO;
+ case 0x2f6df0c: return -EACCES;
+ case 0x2f6df0f: return -EBUSY;
+ case 0x2f6df10: return -EEXIST;
+ case 0x2f6df11: return -EXDEV;
+ case 0x2f6df13: return -ENOTDIR;
+ case 0x2f6df14: return -EISDIR;
+ case 0x2f6df15: return -EINVAL;
+ case 0x2f6df1a: return -EFBIG;
+ case 0x2f6df1b: return -ENOSPC;
+ case 0x2f6df1d: return -EROFS;
+ case 0x2f6df1e: return -EMLINK;
+ case 0x2f6df20: return -EDOM;
+ case 0x2f6df21: return -ERANGE;
+ case 0x2f6df22: return -EDEADLK;
+ case 0x2f6df23: return -ENAMETOOLONG;
+ case 0x2f6df24: return -ENOLCK;
+ case 0x2f6df26: return -ENOTEMPTY;
+ case 0x2f6df78: return -EDQUOT;
+ default: return -EREMOTEIO;
}
-
-} /* end afs_abort_to_error() */
+}
-/* mntpt.c: mountpoint management
+/* mountpoint management
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/mnt_namespace.h>
-#include "super.h"
-#include "cell.h"
-#include "volume.h"
-#include "vnode.h"
#include "internal.h"
struct nameidata *nd);
static int afs_mntpt_open(struct inode *inode, struct file *file);
static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd);
+static void afs_mntpt_expiry_timed_out(struct work_struct *work);
const struct file_operations afs_mntpt_file_operations = {
.open = afs_mntpt_open,
};
static LIST_HEAD(afs_vfsmounts);
+static DECLARE_DELAYED_WORK(afs_mntpt_expiry_timer, afs_mntpt_expiry_timed_out);
-static void afs_mntpt_expiry_timed_out(struct afs_timer *timer);
+unsigned long afs_mntpt_expiry_timeout = 10 * 60;
-struct afs_timer_ops afs_mntpt_expiry_timer_ops = {
- .timed_out = afs_mntpt_expiry_timed_out,
-};
-
-struct afs_timer afs_mntpt_expiry_timer;
-
-unsigned long afs_mntpt_expiry_timeout = 20;
-
-/*****************************************************************************/
/*
* check a symbolic link to see whether it actually encodes a mountpoint
* - sets the AFS_VNODE_MOUNTPOINT flag on the vnode appropriately
*/
-int afs_mntpt_check_symlink(struct afs_vnode *vnode)
+int afs_mntpt_check_symlink(struct afs_vnode *vnode, struct key *key)
{
+ struct file file = {
+ .private_data = key,
+ };
struct page *page;
size_t size;
char *buf;
_enter("{%u,%u}", vnode->fid.vnode, vnode->fid.unique);
/* read the contents of the symlink into the pagecache */
- page = read_mapping_page(AFS_VNODE_TO_I(vnode)->i_mapping, 0, NULL);
+ page = read_mapping_page(AFS_VNODE_TO_I(vnode)->i_mapping, 0, &file);
if (IS_ERR(page)) {
ret = PTR_ERR(page);
goto out;
/* examine the symlink's contents */
size = vnode->status.size;
- _debug("symlink to %*.*s", size, (int) size, buf);
+ _debug("symlink to %*.*s", (int) size, (int) size, buf);
if (size > 2 &&
(buf[0] == '%' || buf[0] == '#') &&
) {
_debug("symlink is a mountpoint");
spin_lock(&vnode->lock);
- vnode->flags |= AFS_VNODE_MOUNTPOINT;
+ set_bit(AFS_VNODE_MOUNTPOINT, &vnode->flags);
spin_unlock(&vnode->lock);
}
ret = 0;
- out_free:
+out_free:
kunmap(page);
page_cache_release(page);
- out:
+out:
_leave(" = %d", ret);
return ret;
+}
-} /* end afs_mntpt_check_symlink() */
-
-/*****************************************************************************/
/*
* no valid lookup procedure on this sort of dir
*/
struct dentry *dentry,
struct nameidata *nd)
{
- kenter("%p,%p{%p{%s},%s}",
+ _enter("%p,%p{%p{%s},%s}",
dir,
dentry,
dentry->d_parent,
dentry->d_name.name);
return ERR_PTR(-EREMOTE);
-} /* end afs_mntpt_lookup() */
+}
-/*****************************************************************************/
/*
* no valid open procedure on this sort of dir
*/
static int afs_mntpt_open(struct inode *inode, struct file *file)
{
- kenter("%p,%p{%p{%s},%s}",
+ _enter("%p,%p{%p{%s},%s}",
inode, file,
file->f_path.dentry->d_parent,
file->f_path.dentry->d_parent ?
file->f_path.dentry->d_name.name);
return -EREMOTE;
-} /* end afs_mntpt_open() */
+}
-/*****************************************************************************/
/*
* create a vfsmount to be automounted
*/
char *buf, *devname = NULL, *options = NULL;
int ret;
- kenter("{%s}", mntpt->d_name.name);
+ _enter("{%s}", mntpt->d_name.name);
BUG_ON(!mntpt->d_inode);
strcat(options, ",rwpath");
/* try and do the mount */
- kdebug("--- attempting mount %s -o %s ---", devname, options);
+ _debug("--- attempting mount %s -o %s ---", devname, options);
mnt = vfs_kern_mount(&afs_fs_type, 0, devname, options);
- kdebug("--- mount result %p ---", mnt);
+ _debug("--- mount result %p ---", mnt);
free_page((unsigned long) devname);
free_page((unsigned long) options);
- kleave(" = %p", mnt);
+ _leave(" = %p", mnt);
return mnt;
- error:
+error:
if (page)
page_cache_release(page);
if (devname)
free_page((unsigned long) devname);
if (options)
free_page((unsigned long) options);
- kleave(" = %d", ret);
+ _leave(" = %d", ret);
return ERR_PTR(ret);
-} /* end afs_mntpt_do_automount() */
+}
-/*****************************************************************************/
/*
* follow a link from a mountpoint directory, thus causing it to be mounted
*/
static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct vfsmount *newmnt;
- struct dentry *old_dentry;
int err;
- kenter("%p{%s},{%s:%p{%s}}",
+ _enter("%p{%s},{%s:%p{%s},}",
dentry,
dentry->d_name.name,
nd->mnt->mnt_devname,
dentry,
nd->dentry->d_name.name);
- newmnt = afs_mntpt_do_automount(dentry);
+ dput(nd->dentry);
+ nd->dentry = dget(dentry);
+
+ newmnt = afs_mntpt_do_automount(nd->dentry);
if (IS_ERR(newmnt)) {
path_release(nd);
return (void *)newmnt;
}
- old_dentry = nd->dentry;
- nd->dentry = dentry;
- err = do_add_mount(newmnt, nd, 0, &afs_vfsmounts);
- nd->dentry = old_dentry;
-
- path_release(nd);
-
- if (!err) {
- mntget(newmnt);
+ mntget(newmnt);
+ err = do_add_mount(newmnt, nd, MNT_SHRINKABLE, &afs_vfsmounts);
+ switch (err) {
+ case 0:
+ mntput(nd->mnt);
+ dput(nd->dentry);
nd->mnt = newmnt;
- dget(newmnt->mnt_root);
- nd->dentry = newmnt->mnt_root;
+ nd->dentry = dget(newmnt->mnt_root);
+ schedule_delayed_work(&afs_mntpt_expiry_timer,
+ afs_mntpt_expiry_timeout * HZ);
+ break;
+ case -EBUSY:
+ /* someone else made a mount here whilst we were busy */
+ while (d_mountpoint(nd->dentry) &&
+ follow_down(&nd->mnt, &nd->dentry))
+ ;
+ err = 0;
+ default:
+ mntput(newmnt);
+ break;
}
- kleave(" = %d", err);
+ _leave(" = %d", err);
return ERR_PTR(err);
-} /* end afs_mntpt_follow_link() */
+}
-/*****************************************************************************/
/*
* handle mountpoint expiry timer going off
*/
-static void afs_mntpt_expiry_timed_out(struct afs_timer *timer)
+static void afs_mntpt_expiry_timed_out(struct work_struct *work)
{
- kenter("");
+ _enter("");
- mark_mounts_for_expiry(&afs_vfsmounts);
+ if (!list_empty(&afs_vfsmounts)) {
+ mark_mounts_for_expiry(&afs_vfsmounts);
+ schedule_delayed_work(&afs_mntpt_expiry_timer,
+ afs_mntpt_expiry_timeout * HZ);
+ }
+
+ _leave("");
+}
- afs_kafstimod_add_timer(&afs_mntpt_expiry_timer,
- afs_mntpt_expiry_timeout * HZ);
+/*
+ * kill the AFS mountpoint timer if it's still running
+ */
+void afs_mntpt_kill_timer(void)
+{
+ _enter("");
- kleave("");
-} /* end afs_mntpt_expiry_timed_out() */
+ ASSERT(list_empty(&afs_vfsmounts));
+ cancel_delayed_work(&afs_mntpt_expiry_timer);
+ flush_scheduled_work();
+}
+
+/*
+ * begin unmount by attempting to remove all automounted mountpoints we added
+ */
+void afs_umount_begin(struct vfsmount *vfsmnt, int flags)
+{
+ shrink_submounts(vfsmnt, &afs_vfsmounts);
+}
+++ /dev/null
-/* mount.h: mount parameters
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_MOUNT_H
-#define _LINUX_AFS_MOUNT_H
-
-struct afs_mountdata {
- const char *volume; /* name of volume */
- const char *cell; /* name of cell containing volume */
- const char *cache; /* name of cache block device */
- size_t nservers; /* number of server addresses listed */
- uint32_t servers[10]; /* IP addresses of servers in this cell */
-};
-
-#endif /* _LINUX_AFS_MOUNT_H */
-/* proc.c: /proc interface for AFS
+/* /proc interface for AFS
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include "cell.h"
-#include "volume.h"
#include <asm/uaccess.h>
#include "internal.h"
.release = afs_proc_cell_servers_release,
};
-/*****************************************************************************/
/*
* initialise the /proc/fs/afs/ directory
*/
proc_afs = proc_mkdir("fs/afs", NULL);
if (!proc_afs)
- goto error;
+ goto error_dir;
proc_afs->owner = THIS_MODULE;
p = create_proc_entry("cells", 0, proc_afs);
if (!p)
- goto error_proc;
+ goto error_cells;
p->proc_fops = &afs_proc_cells_fops;
p->owner = THIS_MODULE;
p = create_proc_entry("rootcell", 0, proc_afs);
if (!p)
- goto error_cells;
+ goto error_rootcell;
p->proc_fops = &afs_proc_rootcell_fops;
p->owner = THIS_MODULE;
_leave(" = 0");
return 0;
- error_cells:
+error_rootcell:
remove_proc_entry("cells", proc_afs);
- error_proc:
+error_cells:
remove_proc_entry("fs/afs", NULL);
- error:
+error_dir:
_leave(" = -ENOMEM");
return -ENOMEM;
+}
-} /* end afs_proc_init() */
-
-/*****************************************************************************/
/*
* clean up the /proc/fs/afs/ directory
*/
void afs_proc_cleanup(void)
{
+ remove_proc_entry("rootcell", proc_afs);
remove_proc_entry("cells", proc_afs);
-
remove_proc_entry("fs/afs", NULL);
+}
-} /* end afs_proc_cleanup() */
-
-/*****************************************************************************/
/*
* open "/proc/fs/afs/cells" which provides a summary of extant cells
*/
m->private = PDE(inode)->data;
return 0;
-} /* end afs_proc_cells_open() */
+}
-/*****************************************************************************/
/*
* set up the iterator to start reading from the cells list and return the
* first item
break;
return _p != &afs_proc_cells ? _p : NULL;
-} /* end afs_proc_cells_start() */
+}
-/*****************************************************************************/
/*
* move to next cell in cells list
*/
_p = v == (void *) 1 ? afs_proc_cells.next : _p->next;
return _p != &afs_proc_cells ? _p : NULL;
-} /* end afs_proc_cells_next() */
+}
-/*****************************************************************************/
/*
* clean up after reading from the cells list
*/
static void afs_proc_cells_stop(struct seq_file *p, void *v)
{
up_read(&afs_proc_cells_sem);
+}
-} /* end afs_proc_cells_stop() */
-
-/*****************************************************************************/
/*
* display a header line followed by a load of cell lines
*/
{
struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link);
- /* display header on line 1 */
if (v == (void *) 1) {
+ /* display header on line 1 */
seq_puts(m, "USE NAME\n");
return 0;
}
/* display one cell per line on subsequent lines */
- seq_printf(m, "%3d %s\n", atomic_read(&cell->usage), cell->name);
-
+ seq_printf(m, "%3d %s\n",
+ atomic_read(&cell->usage), cell->name);
return 0;
-} /* end afs_proc_cells_show() */
+}
-/*****************************************************************************/
/*
* handle writes to /proc/fs/afs/cells
* - to add cells: echo "add <cellname> <IP>[:<IP>][:<IP>]"
if (strcmp(kbuf, "add") == 0) {
struct afs_cell *cell;
- ret = afs_cell_create(name, args, &cell);
- if (ret < 0)
+
+ cell = afs_cell_create(name, args);
+ if (IS_ERR(cell)) {
+ ret = PTR_ERR(cell);
goto done;
+ }
+ afs_put_cell(cell);
printk("kAFS: Added new cell '%s'\n", name);
- }
- else {
+ } else {
goto inval;
}
ret = size;
- done:
+done:
kfree(kbuf);
_leave(" = %d", ret);
return ret;
- inval:
+inval:
ret = -EINVAL;
printk("kAFS: Invalid Command on /proc/fs/afs/cells file\n");
goto done;
-} /* end afs_proc_cells_write() */
+}
-/*****************************************************************************/
/*
* Stubs for /proc/fs/afs/rootcell
*/
return 0;
}
-/*****************************************************************************/
/*
* handle writes to /proc/fs/afs/rootcell
* - to initialize rootcell: echo "cell.name:192.168.231.14"
if (ret >= 0)
ret = size; /* consume everything, always */
- infault:
+infault:
kfree(kbuf);
- nomem:
+nomem:
_leave(" = %d", ret);
return ret;
-} /* end afs_proc_rootcell_write() */
+}
-/*****************************************************************************/
/*
* initialise /proc/fs/afs/<cell>/
*/
cell->proc_dir = proc_mkdir(cell->name, proc_afs);
if (!cell->proc_dir)
- return -ENOMEM;
+ goto error_dir;
p = create_proc_entry("servers", 0, cell->proc_dir);
if (!p)
- goto error_proc;
+ goto error_servers;
p->proc_fops = &afs_proc_cell_servers_fops;
p->owner = THIS_MODULE;
p->data = cell;
p = create_proc_entry("vlservers", 0, cell->proc_dir);
if (!p)
- goto error_servers;
+ goto error_vlservers;
p->proc_fops = &afs_proc_cell_vlservers_fops;
p->owner = THIS_MODULE;
p->data = cell;
p = create_proc_entry("volumes", 0, cell->proc_dir);
if (!p)
- goto error_vlservers;
+ goto error_volumes;
p->proc_fops = &afs_proc_cell_volumes_fops;
p->owner = THIS_MODULE;
p->data = cell;
_leave(" = 0");
return 0;
- error_vlservers:
+error_volumes:
remove_proc_entry("vlservers", cell->proc_dir);
- error_servers:
+error_vlservers:
remove_proc_entry("servers", cell->proc_dir);
- error_proc:
+error_servers:
remove_proc_entry(cell->name, proc_afs);
+error_dir:
_leave(" = -ENOMEM");
return -ENOMEM;
-} /* end afs_proc_cell_setup() */
+}
-/*****************************************************************************/
/*
* remove /proc/fs/afs/<cell>/
*/
remove_proc_entry(cell->name, proc_afs);
_leave("");
-} /* end afs_proc_cell_remove() */
+}
-/*****************************************************************************/
/*
* open "/proc/fs/afs/<cell>/volumes" which provides a summary of extant cells
*/
struct seq_file *m;
int ret;
- cell = afs_get_cell_maybe((struct afs_cell **) &PDE(inode)->data);
+ cell = PDE(inode)->data;
if (!cell)
return -ENOENT;
m->private = cell;
return 0;
-} /* end afs_proc_cell_volumes_open() */
+}
-/*****************************************************************************/
/*
* close the file and release the ref to the cell
*/
static int afs_proc_cell_volumes_release(struct inode *inode, struct file *file)
{
- struct afs_cell *cell = PDE(inode)->data;
- int ret;
-
- ret = seq_release(inode,file);
-
- afs_put_cell(cell);
-
- return ret;
-} /* end afs_proc_cell_volumes_release() */
+ return seq_release(inode, file);
+}
-/*****************************************************************************/
/*
* set up the iterator to start reading from the cells list and return the
* first item
break;
return _p != &cell->vl_list ? _p : NULL;
-} /* end afs_proc_cell_volumes_start() */
+}
-/*****************************************************************************/
/*
* move to next cell in cells list
*/
(*_pos)++;
_p = v;
- _p = v == (void *) 1 ? cell->vl_list.next : _p->next;
+ _p = (v == (void *) 1) ? cell->vl_list.next : _p->next;
- return _p != &cell->vl_list ? _p : NULL;
-} /* end afs_proc_cell_volumes_next() */
+ return (_p != &cell->vl_list) ? _p : NULL;
+}
-/*****************************************************************************/
/*
* clean up after reading from the cells list
*/
struct afs_cell *cell = p->private;
up_read(&cell->vl_sem);
+}
-} /* end afs_proc_cell_volumes_stop() */
+const char afs_vlocation_states[][4] = {
+ [AFS_VL_NEW] = "New",
+ [AFS_VL_CREATING] = "Crt",
+ [AFS_VL_VALID] = "Val",
+ [AFS_VL_NO_VOLUME] = "NoV",
+ [AFS_VL_UPDATING] = "Upd",
+ [AFS_VL_VOLUME_DELETED] = "Del",
+ [AFS_VL_UNCERTAIN] = "Unc",
+};
-/*****************************************************************************/
/*
* display a header line followed by a load of volume lines
*/
/* display header on line 1 */
if (v == (void *) 1) {
- seq_puts(m, "USE VLID[0] VLID[1] VLID[2] NAME\n");
+ seq_puts(m, "USE STT VLID[0] VLID[1] VLID[2] NAME\n");
return 0;
}
/* display one cell per line on subsequent lines */
- seq_printf(m, "%3d %08x %08x %08x %s\n",
+ seq_printf(m, "%3d %s %08x %08x %08x %s\n",
atomic_read(&vlocation->usage),
+ afs_vlocation_states[vlocation->state],
vlocation->vldb.vid[0],
vlocation->vldb.vid[1],
vlocation->vldb.vid[2],
- vlocation->vldb.name
- );
+ vlocation->vldb.name);
return 0;
-} /* end afs_proc_cell_volumes_show() */
+}
-/*****************************************************************************/
/*
* open "/proc/fs/afs/<cell>/vlservers" which provides a list of volume
* location server
struct seq_file *m;
int ret;
- cell = afs_get_cell_maybe((struct afs_cell**)&PDE(inode)->data);
+ cell = PDE(inode)->data;
if (!cell)
return -ENOENT;
- ret = seq_open(file,&afs_proc_cell_vlservers_ops);
+ ret = seq_open(file, &afs_proc_cell_vlservers_ops);
if (ret<0)
return ret;
m->private = cell;
return 0;
-} /* end afs_proc_cell_vlservers_open() */
+}
-/*****************************************************************************/
/*
* close the file and release the ref to the cell
*/
static int afs_proc_cell_vlservers_release(struct inode *inode,
struct file *file)
{
- struct afs_cell *cell = PDE(inode)->data;
- int ret;
-
- ret = seq_release(inode,file);
-
- afs_put_cell(cell);
-
- return ret;
-} /* end afs_proc_cell_vlservers_release() */
+ return seq_release(inode, file);
+}
-/*****************************************************************************/
/*
* set up the iterator to start reading from the cells list and return the
* first item
return NULL;
return &cell->vl_addrs[pos];
-} /* end afs_proc_cell_vlservers_start() */
+}
-/*****************************************************************************/
/*
* move to next cell in cells list
*/
return NULL;
return &cell->vl_addrs[pos];
-} /* end afs_proc_cell_vlservers_next() */
+}
-/*****************************************************************************/
/*
* clean up after reading from the cells list
*/
struct afs_cell *cell = p->private;
up_read(&cell->vl_sem);
+}
-} /* end afs_proc_cell_vlservers_stop() */
-
-/*****************************************************************************/
/*
* display a header line followed by a load of volume lines
*/
/* display one cell per line on subsequent lines */
seq_printf(m, "%u.%u.%u.%u\n", NIPQUAD(addr->s_addr));
-
return 0;
-} /* end afs_proc_cell_vlservers_show() */
+}
-/*****************************************************************************/
/*
* open "/proc/fs/afs/<cell>/servers" which provides a summary of active
* servers
struct seq_file *m;
int ret;
- cell = afs_get_cell_maybe((struct afs_cell **) &PDE(inode)->data);
+ cell = PDE(inode)->data;
if (!cell)
return -ENOENT;
m = file->private_data;
m->private = cell;
-
return 0;
-} /* end afs_proc_cell_servers_open() */
+}
-/*****************************************************************************/
/*
* close the file and release the ref to the cell
*/
static int afs_proc_cell_servers_release(struct inode *inode,
struct file *file)
{
- struct afs_cell *cell = PDE(inode)->data;
- int ret;
-
- ret = seq_release(inode, file);
-
- afs_put_cell(cell);
-
- return ret;
-} /* end afs_proc_cell_servers_release() */
+ return seq_release(inode, file);
+}
-/*****************************************************************************/
/*
* set up the iterator to start reading from the cells list and return the
* first item
*/
static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos)
- __acquires(m->private->sv_lock)
+ __acquires(m->private->servers_lock)
{
struct list_head *_p;
struct afs_cell *cell = m->private;
_enter("cell=%p pos=%Ld", cell, *_pos);
/* lock the list against modification */
- read_lock(&cell->sv_lock);
+ read_lock(&cell->servers_lock);
/* allow for the header line */
if (!pos)
pos--;
/* find the n'th element in the list */
- list_for_each(_p, &cell->sv_list)
+ list_for_each(_p, &cell->servers)
if (!pos--)
break;
- return _p != &cell->sv_list ? _p : NULL;
-} /* end afs_proc_cell_servers_start() */
+ return _p != &cell->servers ? _p : NULL;
+}
-/*****************************************************************************/
/*
* move to next cell in cells list
*/
(*_pos)++;
_p = v;
- _p = v == (void *) 1 ? cell->sv_list.next : _p->next;
+ _p = v == (void *) 1 ? cell->servers.next : _p->next;
- return _p != &cell->sv_list ? _p : NULL;
-} /* end afs_proc_cell_servers_next() */
+ return _p != &cell->servers ? _p : NULL;
+}
-/*****************************************************************************/
/*
* clean up after reading from the cells list
*/
static void afs_proc_cell_servers_stop(struct seq_file *p, void *v)
- __releases(p->private->sv_lock)
+ __releases(p->private->servers_lock)
{
struct afs_cell *cell = p->private;
- read_unlock(&cell->sv_lock);
-
-} /* end afs_proc_cell_servers_stop() */
+ read_unlock(&cell->servers_lock);
+}
-/*****************************************************************************/
/*
* display a header line followed by a load of volume lines
*/
/* display one cell per line on subsequent lines */
sprintf(ipaddr, "%u.%u.%u.%u", NIPQUAD(server->addr));
seq_printf(m, "%3d %-15.15s %5d\n",
- atomic_read(&server->usage),
- ipaddr,
- server->fs_state
- );
+ atomic_read(&server->usage), ipaddr, server->fs_state);
return 0;
-} /* end afs_proc_cell_servers_show() */
+}
--- /dev/null
+/* Maintain an RxRPC server socket to do AFS communications through
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <rxrpc/packet.h>
+#include "internal.h"
+#include "afs_cm.h"
+
+static struct socket *afs_socket; /* my RxRPC socket */
+static struct workqueue_struct *afs_async_calls;
+static atomic_t afs_outstanding_calls;
+static atomic_t afs_outstanding_skbs;
+
+static void afs_wake_up_call_waiter(struct afs_call *);
+static int afs_wait_for_call_to_complete(struct afs_call *);
+static void afs_wake_up_async_call(struct afs_call *);
+static int afs_dont_wait_for_call_to_complete(struct afs_call *);
+static void afs_process_async_call(struct work_struct *);
+static void afs_rx_interceptor(struct sock *, unsigned long, struct sk_buff *);
+static int afs_deliver_cm_op_id(struct afs_call *, struct sk_buff *, bool);
+
+/* synchronous call management */
+const struct afs_wait_mode afs_sync_call = {
+ .rx_wakeup = afs_wake_up_call_waiter,
+ .wait = afs_wait_for_call_to_complete,
+};
+
+/* asynchronous call management */
+const struct afs_wait_mode afs_async_call = {
+ .rx_wakeup = afs_wake_up_async_call,
+ .wait = afs_dont_wait_for_call_to_complete,
+};
+
+/* asynchronous incoming call management */
+static const struct afs_wait_mode afs_async_incoming_call = {
+ .rx_wakeup = afs_wake_up_async_call,
+};
+
+/* asynchronous incoming call initial processing */
+static const struct afs_call_type afs_RXCMxxxx = {
+ .name = "CB.xxxx",
+ .deliver = afs_deliver_cm_op_id,
+ .abort_to_error = afs_abort_to_error,
+};
+
+static void afs_collect_incoming_call(struct work_struct *);
+
+static struct sk_buff_head afs_incoming_calls;
+static DECLARE_WORK(afs_collect_incoming_call_work, afs_collect_incoming_call);
+
+/*
+ * open an RxRPC socket and bind it to be a server for callback notifications
+ * - the socket is left in blocking mode and non-blocking ops use MSG_DONTWAIT
+ */
+int afs_open_socket(void)
+{
+ struct sockaddr_rxrpc srx;
+ struct socket *socket;
+ int ret;
+
+ _enter("");
+
+ skb_queue_head_init(&afs_incoming_calls);
+
+ afs_async_calls = create_singlethread_workqueue("kafsd");
+ if (!afs_async_calls) {
+ _leave(" = -ENOMEM [wq]");
+ return -ENOMEM;
+ }
+
+ ret = sock_create_kern(AF_RXRPC, SOCK_DGRAM, PF_INET, &socket);
+ if (ret < 0) {
+ destroy_workqueue(afs_async_calls);
+ _leave(" = %d [socket]", ret);
+ return ret;
+ }
+
+ socket->sk->sk_allocation = GFP_NOFS;
+
+ /* bind the callback manager's address to make this a server socket */
+ srx.srx_family = AF_RXRPC;
+ srx.srx_service = CM_SERVICE;
+ srx.transport_type = SOCK_DGRAM;
+ srx.transport_len = sizeof(srx.transport.sin);
+ srx.transport.sin.sin_family = AF_INET;
+ srx.transport.sin.sin_port = htons(AFS_CM_PORT);
+ memset(&srx.transport.sin.sin_addr, 0,
+ sizeof(srx.transport.sin.sin_addr));
+
+ ret = kernel_bind(socket, (struct sockaddr *) &srx, sizeof(srx));
+ if (ret < 0) {
+ sock_release(socket);
+ _leave(" = %d [bind]", ret);
+ return ret;
+ }
+
+ rxrpc_kernel_intercept_rx_messages(socket, afs_rx_interceptor);
+
+ afs_socket = socket;
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * close the RxRPC socket AFS was using
+ */
+void afs_close_socket(void)
+{
+ _enter("");
+
+ sock_release(afs_socket);
+
+ _debug("dework");
+ destroy_workqueue(afs_async_calls);
+
+ ASSERTCMP(atomic_read(&afs_outstanding_skbs), ==, 0);
+ ASSERTCMP(atomic_read(&afs_outstanding_calls), ==, 0);
+ _leave("");
+}
+
+/*
+ * note that the data in a socket buffer is now delivered and that the buffer
+ * should be freed
+ */
+static void afs_data_delivered(struct sk_buff *skb)
+{
+ if (!skb) {
+ _debug("DLVR NULL [%d]", atomic_read(&afs_outstanding_skbs));
+ dump_stack();
+ } else {
+ _debug("DLVR %p{%u} [%d]",
+ skb, skb->mark, atomic_read(&afs_outstanding_skbs));
+ if (atomic_dec_return(&afs_outstanding_skbs) == -1)
+ BUG();
+ rxrpc_kernel_data_delivered(skb);
+ }
+}
+
+/*
+ * free a socket buffer
+ */
+static void afs_free_skb(struct sk_buff *skb)
+{
+ if (!skb) {
+ _debug("FREE NULL [%d]", atomic_read(&afs_outstanding_skbs));
+ dump_stack();
+ } else {
+ _debug("FREE %p{%u} [%d]",
+ skb, skb->mark, atomic_read(&afs_outstanding_skbs));
+ if (atomic_dec_return(&afs_outstanding_skbs) == -1)
+ BUG();
+ rxrpc_kernel_free_skb(skb);
+ }
+}
+
+/*
+ * free a call
+ */
+static void afs_free_call(struct afs_call *call)
+{
+ _debug("DONE %p{%s} [%d]",
+ call, call->type->name, atomic_read(&afs_outstanding_calls));
+ if (atomic_dec_return(&afs_outstanding_calls) == -1)
+ BUG();
+
+ ASSERTCMP(call->rxcall, ==, NULL);
+ ASSERT(!work_pending(&call->async_work));
+ ASSERT(skb_queue_empty(&call->rx_queue));
+ ASSERT(call->type->name != NULL);
+
+ kfree(call->request);
+ kfree(call);
+}
+
+/*
+ * allocate a call with flat request and reply buffers
+ */
+struct afs_call *afs_alloc_flat_call(const struct afs_call_type *type,
+ size_t request_size, size_t reply_size)
+{
+ struct afs_call *call;
+
+ call = kzalloc(sizeof(*call), GFP_NOFS);
+ if (!call)
+ goto nomem_call;
+
+ _debug("CALL %p{%s} [%d]",
+ call, type->name, atomic_read(&afs_outstanding_calls));
+ atomic_inc(&afs_outstanding_calls);
+
+ call->type = type;
+ call->request_size = request_size;
+ call->reply_max = reply_size;
+
+ if (request_size) {
+ call->request = kmalloc(request_size, GFP_NOFS);
+ if (!call->request)
+ goto nomem_free;
+ }
+
+ if (reply_size) {
+ call->buffer = kmalloc(reply_size, GFP_NOFS);
+ if (!call->buffer)
+ goto nomem_free;
+ }
+
+ init_waitqueue_head(&call->waitq);
+ skb_queue_head_init(&call->rx_queue);
+ return call;
+
+nomem_free:
+ afs_free_call(call);
+nomem_call:
+ return NULL;
+}
+
+/*
+ * clean up a call with flat buffer
+ */
+void afs_flat_call_destructor(struct afs_call *call)
+{
+ _enter("");
+
+ kfree(call->request);
+ call->request = NULL;
+ kfree(call->buffer);
+ call->buffer = NULL;
+}
+
+/*
+ * initiate a call
+ */
+int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp,
+ const struct afs_wait_mode *wait_mode)
+{
+ struct sockaddr_rxrpc srx;
+ struct rxrpc_call *rxcall;
+ struct msghdr msg;
+ struct kvec iov[1];
+ int ret;
+
+ _enter("%x,{%d},", addr->s_addr, ntohs(call->port));
+
+ ASSERT(call->type != NULL);
+ ASSERT(call->type->name != NULL);
+
+ _debug("MAKE %p{%s} [%d]",
+ call, call->type->name, atomic_read(&afs_outstanding_calls));
+
+ call->wait_mode = wait_mode;
+ INIT_WORK(&call->async_work, afs_process_async_call);
+
+ memset(&srx, 0, sizeof(srx));
+ srx.srx_family = AF_RXRPC;
+ srx.srx_service = call->service_id;
+ srx.transport_type = SOCK_DGRAM;
+ srx.transport_len = sizeof(srx.transport.sin);
+ srx.transport.sin.sin_family = AF_INET;
+ srx.transport.sin.sin_port = call->port;
+ memcpy(&srx.transport.sin.sin_addr, addr, 4);
+
+ /* create a call */
+ rxcall = rxrpc_kernel_begin_call(afs_socket, &srx, call->key,
+ (unsigned long) call, gfp);
+ call->key = NULL;
+ if (IS_ERR(rxcall)) {
+ ret = PTR_ERR(rxcall);
+ goto error_kill_call;
+ }
+
+ call->rxcall = rxcall;
+
+ /* send the request */
+ iov[0].iov_base = call->request;
+ iov[0].iov_len = call->request_size;
+
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = (struct iovec *) iov;
+ msg.msg_iovlen = 1;
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ /* have to change the state *before* sending the last packet as RxRPC
+ * might give us the reply before it returns from sending the
+ * request */
+ call->state = AFS_CALL_AWAIT_REPLY;
+ ret = rxrpc_kernel_send_data(rxcall, &msg, call->request_size);
+ if (ret < 0)
+ goto error_do_abort;
+
+ /* at this point, an async call may no longer exist as it may have
+ * already completed */
+ return wait_mode->wait(call);
+
+error_do_abort:
+ rxrpc_kernel_abort_call(rxcall, RX_USER_ABORT);
+ rxrpc_kernel_end_call(rxcall);
+ call->rxcall = NULL;
+error_kill_call:
+ call->type->destructor(call);
+ afs_free_call(call);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * handles intercepted messages that were arriving in the socket's Rx queue
+ * - called with the socket receive queue lock held to ensure message ordering
+ * - called with softirqs disabled
+ */
+static void afs_rx_interceptor(struct sock *sk, unsigned long user_call_ID,
+ struct sk_buff *skb)
+{
+ struct afs_call *call = (struct afs_call *) user_call_ID;
+
+ _enter("%p,,%u", call, skb->mark);
+
+ _debug("ICPT %p{%u} [%d]",
+ skb, skb->mark, atomic_read(&afs_outstanding_skbs));
+
+ ASSERTCMP(sk, ==, afs_socket->sk);
+ atomic_inc(&afs_outstanding_skbs);
+
+ if (!call) {
+ /* its an incoming call for our callback service */
+ skb_queue_tail(&afs_incoming_calls, skb);
+ schedule_work(&afs_collect_incoming_call_work);
+ } else {
+ /* route the messages directly to the appropriate call */
+ skb_queue_tail(&call->rx_queue, skb);
+ call->wait_mode->rx_wakeup(call);
+ }
+
+ _leave("");
+}
+
+/*
+ * deliver messages to a call
+ */
+static void afs_deliver_to_call(struct afs_call *call)
+{
+ struct sk_buff *skb;
+ bool last;
+ u32 abort_code;
+ int ret;
+
+ _enter("");
+
+ while ((call->state == AFS_CALL_AWAIT_REPLY ||
+ call->state == AFS_CALL_AWAIT_OP_ID ||
+ call->state == AFS_CALL_AWAIT_REQUEST ||
+ call->state == AFS_CALL_AWAIT_ACK) &&
+ (skb = skb_dequeue(&call->rx_queue))) {
+ switch (skb->mark) {
+ case RXRPC_SKB_MARK_DATA:
+ _debug("Rcv DATA");
+ last = rxrpc_kernel_is_data_last(skb);
+ ret = call->type->deliver(call, skb, last);
+ switch (ret) {
+ case 0:
+ if (last &&
+ call->state == AFS_CALL_AWAIT_REPLY)
+ call->state = AFS_CALL_COMPLETE;
+ break;
+ case -ENOTCONN:
+ abort_code = RX_CALL_DEAD;
+ goto do_abort;
+ case -ENOTSUPP:
+ abort_code = RX_INVALID_OPERATION;
+ goto do_abort;
+ default:
+ abort_code = RXGEN_CC_UNMARSHAL;
+ if (call->state != AFS_CALL_AWAIT_REPLY)
+ abort_code = RXGEN_SS_UNMARSHAL;
+ do_abort:
+ rxrpc_kernel_abort_call(call->rxcall,
+ abort_code);
+ call->error = ret;
+ call->state = AFS_CALL_ERROR;
+ break;
+ }
+ afs_data_delivered(skb);
+ skb = NULL;
+ continue;
+ case RXRPC_SKB_MARK_FINAL_ACK:
+ _debug("Rcv ACK");
+ call->state = AFS_CALL_COMPLETE;
+ break;
+ case RXRPC_SKB_MARK_BUSY:
+ _debug("Rcv BUSY");
+ call->error = -EBUSY;
+ call->state = AFS_CALL_BUSY;
+ break;
+ case RXRPC_SKB_MARK_REMOTE_ABORT:
+ abort_code = rxrpc_kernel_get_abort_code(skb);
+ call->error = call->type->abort_to_error(abort_code);
+ call->state = AFS_CALL_ABORTED;
+ _debug("Rcv ABORT %u -> %d", abort_code, call->error);
+ break;
+ case RXRPC_SKB_MARK_NET_ERROR:
+ call->error = -rxrpc_kernel_get_error_number(skb);
+ call->state = AFS_CALL_ERROR;
+ _debug("Rcv NET ERROR %d", call->error);
+ break;
+ case RXRPC_SKB_MARK_LOCAL_ERROR:
+ call->error = -rxrpc_kernel_get_error_number(skb);
+ call->state = AFS_CALL_ERROR;
+ _debug("Rcv LOCAL ERROR %d", call->error);
+ break;
+ default:
+ BUG();
+ break;
+ }
+
+ afs_free_skb(skb);
+ }
+
+ /* make sure the queue is empty if the call is done with (we might have
+ * aborted the call early because of an unmarshalling error) */
+ if (call->state >= AFS_CALL_COMPLETE) {
+ while ((skb = skb_dequeue(&call->rx_queue)))
+ afs_free_skb(skb);
+ if (call->incoming) {
+ rxrpc_kernel_end_call(call->rxcall);
+ call->rxcall = NULL;
+ call->type->destructor(call);
+ afs_free_call(call);
+ }
+ }
+
+ _leave("");
+}
+
+/*
+ * wait synchronously for a call to complete
+ */
+static int afs_wait_for_call_to_complete(struct afs_call *call)
+{
+ struct sk_buff *skb;
+ int ret;
+
+ DECLARE_WAITQUEUE(myself, current);
+
+ _enter("");
+
+ add_wait_queue(&call->waitq, &myself);
+ for (;;) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ /* deliver any messages that are in the queue */
+ if (!skb_queue_empty(&call->rx_queue)) {
+ __set_current_state(TASK_RUNNING);
+ afs_deliver_to_call(call);
+ continue;
+ }
+
+ ret = call->error;
+ if (call->state >= AFS_CALL_COMPLETE)
+ break;
+ ret = -EINTR;
+ if (signal_pending(current))
+ break;
+ schedule();
+ }
+
+ remove_wait_queue(&call->waitq, &myself);
+ __set_current_state(TASK_RUNNING);
+
+ /* kill the call */
+ if (call->state < AFS_CALL_COMPLETE) {
+ _debug("call incomplete");
+ rxrpc_kernel_abort_call(call->rxcall, RX_CALL_DEAD);
+ while ((skb = skb_dequeue(&call->rx_queue)))
+ afs_free_skb(skb);
+ }
+
+ _debug("call complete");
+ rxrpc_kernel_end_call(call->rxcall);
+ call->rxcall = NULL;
+ call->type->destructor(call);
+ afs_free_call(call);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * wake up a waiting call
+ */
+static void afs_wake_up_call_waiter(struct afs_call *call)
+{
+ wake_up(&call->waitq);
+}
+
+/*
+ * wake up an asynchronous call
+ */
+static void afs_wake_up_async_call(struct afs_call *call)
+{
+ _enter("");
+ queue_work(afs_async_calls, &call->async_work);
+}
+
+/*
+ * put a call into asynchronous mode
+ * - mustn't touch the call descriptor as the call my have completed by the
+ * time we get here
+ */
+static int afs_dont_wait_for_call_to_complete(struct afs_call *call)
+{
+ _enter("");
+ return -EINPROGRESS;
+}
+
+/*
+ * delete an asynchronous call
+ */
+static void afs_delete_async_call(struct work_struct *work)
+{
+ struct afs_call *call =
+ container_of(work, struct afs_call, async_work);
+
+ _enter("");
+
+ afs_free_call(call);
+
+ _leave("");
+}
+
+/*
+ * perform processing on an asynchronous call
+ * - on a multiple-thread workqueue this work item may try to run on several
+ * CPUs at the same time
+ */
+static void afs_process_async_call(struct work_struct *work)
+{
+ struct afs_call *call =
+ container_of(work, struct afs_call, async_work);
+
+ _enter("");
+
+ if (!skb_queue_empty(&call->rx_queue))
+ afs_deliver_to_call(call);
+
+ if (call->state >= AFS_CALL_COMPLETE && call->wait_mode) {
+ if (call->wait_mode->async_complete)
+ call->wait_mode->async_complete(call->reply,
+ call->error);
+ call->reply = NULL;
+
+ /* kill the call */
+ rxrpc_kernel_end_call(call->rxcall);
+ call->rxcall = NULL;
+ if (call->type->destructor)
+ call->type->destructor(call);
+
+ /* we can't just delete the call because the work item may be
+ * queued */
+ PREPARE_WORK(&call->async_work, afs_delete_async_call);
+ queue_work(afs_async_calls, &call->async_work);
+ }
+
+ _leave("");
+}
+
+/*
+ * empty a socket buffer into a flat reply buffer
+ */
+void afs_transfer_reply(struct afs_call *call, struct sk_buff *skb)
+{
+ size_t len = skb->len;
+
+ if (skb_copy_bits(skb, 0, call->buffer + call->reply_size, len) < 0)
+ BUG();
+ call->reply_size += len;
+}
+
+/*
+ * accept the backlog of incoming calls
+ */
+static void afs_collect_incoming_call(struct work_struct *work)
+{
+ struct rxrpc_call *rxcall;
+ struct afs_call *call = NULL;
+ struct sk_buff *skb;
+
+ while ((skb = skb_dequeue(&afs_incoming_calls))) {
+ _debug("new call");
+
+ /* don't need the notification */
+ afs_free_skb(skb);
+
+ if (!call) {
+ call = kzalloc(sizeof(struct afs_call), GFP_KERNEL);
+ if (!call) {
+ rxrpc_kernel_reject_call(afs_socket);
+ return;
+ }
+
+ INIT_WORK(&call->async_work, afs_process_async_call);
+ call->wait_mode = &afs_async_incoming_call;
+ call->type = &afs_RXCMxxxx;
+ init_waitqueue_head(&call->waitq);
+ skb_queue_head_init(&call->rx_queue);
+ call->state = AFS_CALL_AWAIT_OP_ID;
+
+ _debug("CALL %p{%s} [%d]",
+ call, call->type->name,
+ atomic_read(&afs_outstanding_calls));
+ atomic_inc(&afs_outstanding_calls);
+ }
+
+ rxcall = rxrpc_kernel_accept_call(afs_socket,
+ (unsigned long) call);
+ if (!IS_ERR(rxcall)) {
+ call->rxcall = rxcall;
+ call = NULL;
+ }
+ }
+
+ if (call)
+ afs_free_call(call);
+}
+
+/*
+ * grab the operation ID from an incoming cache manager call
+ */
+static int afs_deliver_cm_op_id(struct afs_call *call, struct sk_buff *skb,
+ bool last)
+{
+ size_t len = skb->len;
+ void *oibuf = (void *) &call->operation_ID;
+
+ _enter("{%u},{%zu},%d", call->offset, len, last);
+
+ ASSERTCMP(call->offset, <, 4);
+
+ /* the operation ID forms the first four bytes of the request data */
+ len = min_t(size_t, len, 4 - call->offset);
+ if (skb_copy_bits(skb, 0, oibuf + call->offset, len) < 0)
+ BUG();
+ if (!pskb_pull(skb, len))
+ BUG();
+ call->offset += len;
+
+ if (call->offset < 4) {
+ if (last) {
+ _leave(" = -EBADMSG [op ID short]");
+ return -EBADMSG;
+ }
+ _leave(" = 0 [incomplete]");
+ return 0;
+ }
+
+ call->state = AFS_CALL_AWAIT_REQUEST;
+
+ /* ask the cache manager to route the call (it'll change the call type
+ * if successful) */
+ if (!afs_cm_incoming_call(call))
+ return -ENOTSUPP;
+
+ /* pass responsibility for the remainer of this message off to the
+ * cache manager op */
+ return call->type->deliver(call, skb, last);
+}
+
+/*
+ * send an empty reply
+ */
+void afs_send_empty_reply(struct afs_call *call)
+{
+ struct msghdr msg;
+ struct iovec iov[1];
+
+ _enter("");
+
+ iov[0].iov_base = NULL;
+ iov[0].iov_len = 0;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 0;
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ call->state = AFS_CALL_AWAIT_ACK;
+ switch (rxrpc_kernel_send_data(call->rxcall, &msg, 0)) {
+ case 0:
+ _leave(" [replied]");
+ return;
+
+ case -ENOMEM:
+ _debug("oom");
+ rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT);
+ default:
+ rxrpc_kernel_end_call(call->rxcall);
+ call->rxcall = NULL;
+ call->type->destructor(call);
+ afs_free_call(call);
+ _leave(" [error]");
+ return;
+ }
+}
+
+/*
+ * send a simple reply
+ */
+void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len)
+{
+ struct msghdr msg;
+ struct iovec iov[1];
+
+ _enter("");
+
+ iov[0].iov_base = (void *) buf;
+ iov[0].iov_len = len;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ call->state = AFS_CALL_AWAIT_ACK;
+ switch (rxrpc_kernel_send_data(call->rxcall, &msg, len)) {
+ case 0:
+ _leave(" [replied]");
+ return;
+
+ case -ENOMEM:
+ _debug("oom");
+ rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT);
+ default:
+ rxrpc_kernel_end_call(call->rxcall);
+ call->rxcall = NULL;
+ call->type->destructor(call);
+ afs_free_call(call);
+ _leave(" [error]");
+ return;
+ }
+}
+
+/*
+ * extract a piece of data from the received data socket buffers
+ */
+int afs_extract_data(struct afs_call *call, struct sk_buff *skb,
+ bool last, void *buf, size_t count)
+{
+ size_t len = skb->len;
+
+ _enter("{%u},{%zu},%d,,%zu", call->offset, len, last, count);
+
+ ASSERTCMP(call->offset, <, count);
+
+ len = min_t(size_t, len, count - call->offset);
+ if (skb_copy_bits(skb, 0, buf + call->offset, len) < 0 ||
+ !pskb_pull(skb, len))
+ BUG();
+ call->offset += len;
+
+ if (call->offset < count) {
+ if (last) {
+ _leave(" = -EBADMSG [%d < %lu]", call->offset, count);
+ return -EBADMSG;
+ }
+ _leave(" = -EAGAIN");
+ return -EAGAIN;
+ }
+ return 0;
+}
--- /dev/null
+/* AFS security handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/ctype.h>
+#include <keys/rxrpc-type.h>
+#include "internal.h"
+
+/*
+ * get a key
+ */
+struct key *afs_request_key(struct afs_cell *cell)
+{
+ struct key *key;
+
+ _enter("{%x}", key_serial(cell->anonymous_key));
+
+ _debug("key %s", cell->anonymous_key->description);
+ key = request_key(&key_type_rxrpc, cell->anonymous_key->description,
+ NULL);
+ if (IS_ERR(key)) {
+ if (PTR_ERR(key) != -ENOKEY) {
+ _leave(" = %ld", PTR_ERR(key));
+ return key;
+ }
+
+ /* act as anonymous user */
+ _leave(" = {%x} [anon]", key_serial(cell->anonymous_key));
+ return key_get(cell->anonymous_key);
+ } else {
+ /* act as authorised user */
+ _leave(" = {%x} [auth]", key_serial(key));
+ return key;
+ }
+}
+
+/*
+ * dispose of a permits list
+ */
+void afs_zap_permits(struct rcu_head *rcu)
+{
+ struct afs_permits *permits =
+ container_of(rcu, struct afs_permits, rcu);
+ int loop;
+
+ _enter("{%d}", permits->count);
+
+ for (loop = permits->count - 1; loop >= 0; loop--)
+ key_put(permits->permits[loop].key);
+ kfree(permits);
+}
+
+/*
+ * dispose of a permits list in which all the key pointers have been copied
+ */
+static void afs_dispose_of_permits(struct rcu_head *rcu)
+{
+ struct afs_permits *permits =
+ container_of(rcu, struct afs_permits, rcu);
+
+ _enter("{%d}", permits->count);
+
+ kfree(permits);
+}
+
+/*
+ * get the authorising vnode - this is the specified inode itself if it's a
+ * directory or it's the parent directory if the specified inode is a file or
+ * symlink
+ * - the caller must release the ref on the inode
+ */
+static struct afs_vnode *afs_get_auth_inode(struct afs_vnode *vnode,
+ struct key *key)
+{
+ struct afs_vnode *auth_vnode;
+ struct inode *auth_inode;
+
+ _enter("");
+
+ if (S_ISDIR(vnode->vfs_inode.i_mode)) {
+ auth_inode = igrab(&vnode->vfs_inode);
+ ASSERT(auth_inode != NULL);
+ } else {
+ auth_inode = afs_iget(vnode->vfs_inode.i_sb, key,
+ &vnode->status.parent, NULL, NULL);
+ if (IS_ERR(auth_inode))
+ return ERR_PTR(PTR_ERR(auth_inode));
+ }
+
+ auth_vnode = AFS_FS_I(auth_inode);
+ _leave(" = {%x}", auth_vnode->fid.vnode);
+ return auth_vnode;
+}
+
+/*
+ * clear the permit cache on a directory vnode
+ */
+void afs_clear_permits(struct afs_vnode *vnode)
+{
+ struct afs_permits *permits;
+
+ _enter("{%x}", vnode->fid.vnode);
+
+ mutex_lock(&vnode->permits_lock);
+ permits = vnode->permits;
+ rcu_assign_pointer(vnode->permits, NULL);
+ mutex_unlock(&vnode->permits_lock);
+
+ if (permits)
+ call_rcu(&permits->rcu, afs_zap_permits);
+ _leave("");
+}
+
+/*
+ * add the result obtained for a vnode to its or its parent directory's cache
+ * for the key used to access it
+ */
+void afs_cache_permit(struct afs_vnode *vnode, struct key *key, long acl_order)
+{
+ struct afs_permits *permits, *xpermits;
+ struct afs_permit *permit;
+ struct afs_vnode *auth_vnode;
+ int count, loop;
+
+ _enter("{%x},%x,%lx", vnode->fid.vnode, key_serial(key), acl_order);
+
+ auth_vnode = afs_get_auth_inode(vnode, key);
+ if (IS_ERR(auth_vnode)) {
+ _leave(" [get error %ld]", PTR_ERR(auth_vnode));
+ return;
+ }
+
+ mutex_lock(&auth_vnode->permits_lock);
+
+ /* guard against a rename being detected whilst we waited for the
+ * lock */
+ if (memcmp(&auth_vnode->fid, &vnode->status.parent,
+ sizeof(struct afs_fid)) != 0) {
+ _debug("renamed");
+ goto out_unlock;
+ }
+
+ /* have to be careful as the directory's callback may be broken between
+ * us receiving the status we're trying to cache and us getting the
+ * lock to update the cache for the status */
+ if (auth_vnode->acl_order - acl_order > 0) {
+ _debug("ACL changed?");
+ goto out_unlock;
+ }
+
+ /* always update the anonymous mask */
+ _debug("anon access %x", vnode->status.anon_access);
+ auth_vnode->status.anon_access = vnode->status.anon_access;
+ if (key == vnode->volume->cell->anonymous_key)
+ goto out_unlock;
+
+ xpermits = auth_vnode->permits;
+ count = 0;
+ if (xpermits) {
+ /* see if the permit is already in the list
+ * - if it is then we just amend the list
+ */
+ count = xpermits->count;
+ permit = xpermits->permits;
+ for (loop = count; loop > 0; loop--) {
+ if (permit->key == key) {
+ permit->access_mask =
+ vnode->status.caller_access;
+ goto out_unlock;
+ }
+ permit++;
+ }
+ }
+
+ permits = kmalloc(sizeof(*permits) + sizeof(*permit) * (count + 1),
+ GFP_NOFS);
+ if (!permits)
+ goto out_unlock;
+
+ memcpy(permits->permits, xpermits->permits,
+ count * sizeof(struct afs_permit));
+
+ _debug("key %x access %x",
+ key_serial(key), vnode->status.caller_access);
+ permits->permits[count].access_mask = vnode->status.caller_access;
+ permits->permits[count].key = key_get(key);
+ permits->count = count + 1;
+
+ rcu_assign_pointer(auth_vnode->permits, permits);
+ if (xpermits)
+ call_rcu(&xpermits->rcu, afs_dispose_of_permits);
+
+out_unlock:
+ mutex_unlock(&auth_vnode->permits_lock);
+ iput(&auth_vnode->vfs_inode);
+ _leave("");
+}
+
+/*
+ * check with the fileserver to see if the directory or parent directory is
+ * permitted to be accessed with this authorisation, and if so, what access it
+ * is granted
+ */
+static int afs_check_permit(struct afs_vnode *vnode, struct key *key,
+ afs_access_t *_access)
+{
+ struct afs_permits *permits;
+ struct afs_permit *permit;
+ struct afs_vnode *auth_vnode;
+ bool valid;
+ int loop, ret;
+
+ _enter("");
+
+ auth_vnode = afs_get_auth_inode(vnode, key);
+ if (IS_ERR(auth_vnode)) {
+ *_access = 0;
+ _leave(" = %ld", PTR_ERR(auth_vnode));
+ return PTR_ERR(auth_vnode);
+ }
+
+ ASSERT(S_ISDIR(auth_vnode->vfs_inode.i_mode));
+
+ /* check the permits to see if we've got one yet */
+ if (key == auth_vnode->volume->cell->anonymous_key) {
+ _debug("anon");
+ *_access = auth_vnode->status.anon_access;
+ valid = true;
+ } else {
+ valid = false;
+ rcu_read_lock();
+ permits = rcu_dereference(auth_vnode->permits);
+ if (permits) {
+ permit = permits->permits;
+ for (loop = permits->count; loop > 0; loop--) {
+ if (permit->key == key) {
+ _debug("found in cache");
+ *_access = permit->access_mask;
+ valid = true;
+ break;
+ }
+ permit++;
+ }
+ }
+ rcu_read_unlock();
+ }
+
+ if (!valid) {
+ /* check the status on the file we're actually interested in
+ * (the post-processing will cache the result on auth_vnode) */
+ _debug("no valid permit");
+
+ set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+ ret = afs_vnode_fetch_status(vnode, auth_vnode, key);
+ if (ret < 0) {
+ iput(&auth_vnode->vfs_inode);
+ *_access = 0;
+ _leave(" = %d", ret);
+ return ret;
+ }
+ }
+
+ *_access = vnode->status.caller_access;
+ iput(&auth_vnode->vfs_inode);
+ _leave(" = 0 [access %x]", *_access);
+ return 0;
+}
+
+/*
+ * check the permissions on an AFS file
+ * - AFS ACLs are attached to directories only, and a file is controlled by its
+ * parent directory's ACL
+ */
+int afs_permission(struct inode *inode, int mask, struct nameidata *nd)
+{
+ struct afs_vnode *vnode = AFS_FS_I(inode);
+ afs_access_t access;
+ struct key *key;
+ int ret;
+
+ _enter("{{%x:%x},%lx},%x,",
+ vnode->fid.vid, vnode->fid.vnode, vnode->flags, mask);
+
+ key = afs_request_key(vnode->volume->cell);
+ if (IS_ERR(key)) {
+ _leave(" = %ld [key]", PTR_ERR(key));
+ return PTR_ERR(key);
+ }
+
+ /* if the promise has expired, we need to check the server again */
+ if (!vnode->cb_promised) {
+ _debug("not promised");
+ ret = afs_vnode_fetch_status(vnode, NULL, key);
+ if (ret < 0)
+ goto error;
+ _debug("new promise [fl=%lx]", vnode->flags);
+ }
+
+ /* check the permits to see if we've got one yet */
+ ret = afs_check_permit(vnode, key, &access);
+ if (ret < 0)
+ goto error;
+
+ /* interpret the access mask */
+ _debug("REQ %x ACC %x on %s",
+ mask, access, S_ISDIR(inode->i_mode) ? "dir" : "file");
+
+ if (S_ISDIR(inode->i_mode)) {
+ if (mask & MAY_EXEC) {
+ if (!(access & AFS_ACE_LOOKUP))
+ goto permission_denied;
+ } else if (mask & MAY_READ) {
+ if (!(access & AFS_ACE_READ))
+ goto permission_denied;
+ } else if (mask & MAY_WRITE) {
+ if (!(access & (AFS_ACE_DELETE | /* rmdir, unlink, rename from */
+ AFS_ACE_INSERT | /* create, mkdir, symlink, rename to */
+ AFS_ACE_WRITE))) /* chmod */
+ goto permission_denied;
+ } else {
+ BUG();
+ }
+ } else {
+ if (!(access & AFS_ACE_LOOKUP))
+ goto permission_denied;
+ if (mask & (MAY_EXEC | MAY_READ)) {
+ if (!(access & AFS_ACE_READ))
+ goto permission_denied;
+ } else if (mask & MAY_WRITE) {
+ if (!(access & AFS_ACE_WRITE))
+ goto permission_denied;
+ }
+ }
+
+ key_put(key);
+ ret = generic_permission(inode, mask, NULL);
+ _leave(" = %d", ret);
+ return ret;
+
+permission_denied:
+ ret = -EACCES;
+error:
+ key_put(key);
+ _leave(" = %d", ret);
+ return ret;
+}
-/* server.c: AFS server record management
+/* AFS server record management
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/sched.h>
#include <linux/slab.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include "volume.h"
-#include "cell.h"
-#include "server.h"
-#include "transport.h"
-#include "vlclient.h"
-#include "kafstimod.h"
#include "internal.h"
-DEFINE_SPINLOCK(afs_server_peer_lock);
+unsigned afs_server_timeout = 10; /* server timeout in seconds */
-#define FS_SERVICE_ID 1 /* AFS Volume Location Service ID */
-#define VL_SERVICE_ID 52 /* AFS Volume Location Service ID */
+static void afs_reap_server(struct work_struct *);
-static void __afs_server_timeout(struct afs_timer *timer)
+/* tree of all the servers, indexed by IP address */
+static struct rb_root afs_servers = RB_ROOT;
+static DEFINE_RWLOCK(afs_servers_lock);
+
+/* LRU list of all the servers not currently in use */
+static LIST_HEAD(afs_server_graveyard);
+static DEFINE_SPINLOCK(afs_server_graveyard_lock);
+static DECLARE_DELAYED_WORK(afs_server_reaper, afs_reap_server);
+
+/*
+ * install a server record in the master tree
+ */
+static int afs_install_server(struct afs_server *server)
{
- struct afs_server *server =
- list_entry(timer, struct afs_server, timeout);
+ struct afs_server *xserver;
+ struct rb_node **pp, *p;
+ int ret;
- _debug("SERVER TIMEOUT [%p{u=%d}]",
- server, atomic_read(&server->usage));
+ _enter("%p", server);
- afs_server_do_timeout(server);
-}
+ write_lock(&afs_servers_lock);
+
+ ret = -EEXIST;
+ pp = &afs_servers.rb_node;
+ p = NULL;
+ while (*pp) {
+ p = *pp;
+ _debug("- consider %p", p);
+ xserver = rb_entry(p, struct afs_server, master_rb);
+ if (server->addr.s_addr < xserver->addr.s_addr)
+ pp = &(*pp)->rb_left;
+ else if (server->addr.s_addr > xserver->addr.s_addr)
+ pp = &(*pp)->rb_right;
+ else
+ goto error;
+ }
-static const struct afs_timer_ops afs_server_timer_ops = {
- .timed_out = __afs_server_timeout,
-};
+ rb_link_node(&server->master_rb, p, pp);
+ rb_insert_color(&server->master_rb, &afs_servers);
+ ret = 0;
+
+error:
+ write_unlock(&afs_servers_lock);
+ return ret;
+}
-/*****************************************************************************/
/*
- * lookup a server record in a cell
- * - TODO: search the cell's server list
+ * allocate a new server record
*/
-int afs_server_lookup(struct afs_cell *cell, const struct in_addr *addr,
- struct afs_server **_server)
+static struct afs_server *afs_alloc_server(struct afs_cell *cell,
+ const struct in_addr *addr)
{
- struct afs_server *server, *active, *zombie;
- int loop;
+ struct afs_server *server;
- _enter("%p,%08x,", cell, ntohl(addr->s_addr));
+ _enter("");
- /* allocate and initialise a server record */
server = kzalloc(sizeof(struct afs_server), GFP_KERNEL);
- if (!server) {
- _leave(" = -ENOMEM");
- return -ENOMEM;
+ if (server) {
+ atomic_set(&server->usage, 1);
+ server->cell = cell;
+
+ INIT_LIST_HEAD(&server->link);
+ INIT_LIST_HEAD(&server->grave);
+ init_rwsem(&server->sem);
+ spin_lock_init(&server->fs_lock);
+ server->fs_vnodes = RB_ROOT;
+ server->cb_promises = RB_ROOT;
+ spin_lock_init(&server->cb_lock);
+ init_waitqueue_head(&server->cb_break_waitq);
+ INIT_DELAYED_WORK(&server->cb_break_work,
+ afs_dispatch_give_up_callbacks);
+
+ memcpy(&server->addr, addr, sizeof(struct in_addr));
+ server->addr.s_addr = addr->s_addr;
}
- atomic_set(&server->usage, 1);
-
- INIT_LIST_HEAD(&server->link);
- init_rwsem(&server->sem);
- INIT_LIST_HEAD(&server->fs_callq);
- spin_lock_init(&server->fs_lock);
- INIT_LIST_HEAD(&server->cb_promises);
- spin_lock_init(&server->cb_lock);
-
- for (loop = 0; loop < AFS_SERVER_CONN_LIST_SIZE; loop++)
- server->fs_conn_cnt[loop] = 4;
+ _leave(" = %p{%d}", server, atomic_read(&server->usage));
+ return server;
+}
- memcpy(&server->addr, addr, sizeof(struct in_addr));
- server->addr.s_addr = addr->s_addr;
+/*
+ * get an FS-server record for a cell
+ */
+struct afs_server *afs_lookup_server(struct afs_cell *cell,
+ const struct in_addr *addr)
+{
+ struct afs_server *server, *candidate;
- afs_timer_init(&server->timeout, &afs_server_timer_ops);
+ _enter("%p,"NIPQUAD_FMT, cell, NIPQUAD(addr->s_addr));
- /* add to the cell */
- write_lock(&cell->sv_lock);
+ /* quick scan of the list to see if we already have the server */
+ read_lock(&cell->servers_lock);
- /* check the active list */
- list_for_each_entry(active, &cell->sv_list, link) {
- if (active->addr.s_addr == addr->s_addr)
- goto use_active_server;
+ list_for_each_entry(server, &cell->servers, link) {
+ if (server->addr.s_addr == addr->s_addr)
+ goto found_server_quickly;
}
+ read_unlock(&cell->servers_lock);
- /* check the inactive list */
- spin_lock(&cell->sv_gylock);
- list_for_each_entry(zombie, &cell->sv_graveyard, link) {
- if (zombie->addr.s_addr == addr->s_addr)
- goto resurrect_server;
+ candidate = afs_alloc_server(cell, addr);
+ if (!candidate) {
+ _leave(" = -ENOMEM");
+ return ERR_PTR(-ENOMEM);
}
- spin_unlock(&cell->sv_gylock);
- afs_get_cell(cell);
- server->cell = cell;
- list_add_tail(&server->link, &cell->sv_list);
+ write_lock(&cell->servers_lock);
- write_unlock(&cell->sv_lock);
+ /* check the cell's server list again */
+ list_for_each_entry(server, &cell->servers, link) {
+ if (server->addr.s_addr == addr->s_addr)
+ goto found_server;
+ }
- *_server = server;
- _leave(" = 0 (%p)", server);
- return 0;
+ _debug("new");
+ server = candidate;
+ if (afs_install_server(server) < 0)
+ goto server_in_two_cells;
- /* found a matching active server */
- use_active_server:
- _debug("active server");
- afs_get_server(active);
- write_unlock(&cell->sv_lock);
+ afs_get_cell(cell);
+ list_add_tail(&server->link, &cell->servers);
+
+ write_unlock(&cell->servers_lock);
+ _leave(" = %p{%d}", server, atomic_read(&server->usage));
+ return server;
+
+ /* found a matching server quickly */
+found_server_quickly:
+ _debug("found quickly");
+ afs_get_server(server);
+ read_unlock(&cell->servers_lock);
+no_longer_unused:
+ if (!list_empty(&server->grave)) {
+ spin_lock(&afs_server_graveyard_lock);
+ list_del_init(&server->grave);
+ spin_unlock(&afs_server_graveyard_lock);
+ }
+ _leave(" = %p{%d}", server, atomic_read(&server->usage));
+ return server;
+
+ /* found a matching server on the second pass */
+found_server:
+ _debug("found");
+ afs_get_server(server);
+ write_unlock(&cell->servers_lock);
+ kfree(candidate);
+ goto no_longer_unused;
+
+ /* found a server that seems to be in two cells */
+server_in_two_cells:
+ write_unlock(&cell->servers_lock);
+ kfree(candidate);
+ printk(KERN_NOTICE "kAFS:"
+ " Server "NIPQUAD_FMT" appears to be in two cells\n",
+ NIPQUAD(*addr));
+ _leave(" = -EEXIST");
+ return ERR_PTR(-EEXIST);
+}
- kfree(server);
+/*
+ * look up a server by its IP address
+ */
+struct afs_server *afs_find_server(const struct in_addr *_addr)
+{
+ struct afs_server *server = NULL;
+ struct rb_node *p;
+ struct in_addr addr = *_addr;
- *_server = active;
- _leave(" = 0 (%p)", active);
- return 0;
+ _enter(NIPQUAD_FMT, NIPQUAD(addr.s_addr));
- /* found a matching server in the graveyard, so resurrect it and
- * dispose of the new record */
- resurrect_server:
- _debug("resurrecting server");
+ read_lock(&afs_servers_lock);
- list_move_tail(&zombie->link, &cell->sv_list);
- afs_get_server(zombie);
- afs_kafstimod_del_timer(&zombie->timeout);
- spin_unlock(&cell->sv_gylock);
- write_unlock(&cell->sv_lock);
+ p = afs_servers.rb_node;
+ while (p) {
+ server = rb_entry(p, struct afs_server, master_rb);
- kfree(server);
+ _debug("- consider %p", p);
- *_server = zombie;
- _leave(" = 0 (%p)", zombie);
- return 0;
+ if (addr.s_addr < server->addr.s_addr) {
+ p = p->rb_left;
+ } else if (addr.s_addr > server->addr.s_addr) {
+ p = p->rb_right;
+ } else {
+ afs_get_server(server);
+ goto found;
+ }
+ }
-} /* end afs_server_lookup() */
+ server = NULL;
+found:
+ read_unlock(&afs_servers_lock);
+ ASSERTIFCMP(server, server->addr.s_addr, ==, addr.s_addr);
+ _leave(" = %p", server);
+ return server;
+}
-/*****************************************************************************/
/*
* destroy a server record
* - removes from the cell list
*/
void afs_put_server(struct afs_server *server)
{
- struct afs_cell *cell;
-
if (!server)
return;
- _enter("%p", server);
-
- cell = server->cell;
+ _enter("%p{%d}", server, atomic_read(&server->usage));
- /* sanity check */
- BUG_ON(atomic_read(&server->usage) <= 0);
+ _debug("PUT SERVER %d", atomic_read(&server->usage));
- /* to prevent a race, the decrement and the dequeue must be effectively
- * atomic */
- write_lock(&cell->sv_lock);
+ ASSERTCMP(atomic_read(&server->usage), >, 0);
if (likely(!atomic_dec_and_test(&server->usage))) {
- write_unlock(&cell->sv_lock);
_leave("");
return;
}
- spin_lock(&cell->sv_gylock);
- list_move_tail(&server->link, &cell->sv_graveyard);
+ afs_flush_callback_breaks(server);
- /* time out in 10 secs */
- afs_kafstimod_add_timer(&server->timeout, 10 * HZ);
-
- spin_unlock(&cell->sv_gylock);
- write_unlock(&cell->sv_lock);
-
- _leave(" [killed]");
-} /* end afs_put_server() */
+ spin_lock(&afs_server_graveyard_lock);
+ if (atomic_read(&server->usage) == 0) {
+ list_move_tail(&server->grave, &afs_server_graveyard);
+ server->time_of_death = get_seconds();
+ schedule_delayed_work(&afs_server_reaper,
+ afs_server_timeout * HZ);
+ }
+ spin_unlock(&afs_server_graveyard_lock);
+ _leave(" [dead]");
+}
-/*****************************************************************************/
/*
- * timeout server record
- * - removes from the cell's graveyard if the usage count is zero
+ * destroy a dead server
*/
-void afs_server_do_timeout(struct afs_server *server)
+static void afs_destroy_server(struct afs_server *server)
{
- struct rxrpc_peer *peer;
- struct afs_cell *cell;
- int loop;
-
_enter("%p", server);
- cell = server->cell;
-
- BUG_ON(atomic_read(&server->usage) < 0);
-
- /* remove from graveyard if still dead */
- spin_lock(&cell->vl_gylock);
- if (atomic_read(&server->usage) == 0)
- list_del_init(&server->link);
- else
- server = NULL;
- spin_unlock(&cell->vl_gylock);
-
- if (!server) {
- _leave("");
- return; /* resurrected */
- }
-
- /* we can now destroy it properly */
- afs_put_cell(cell);
-
- /* uncross-point the structs under a global lock */
- spin_lock(&afs_server_peer_lock);
- peer = server->peer;
- if (peer) {
- server->peer = NULL;
- peer->user = NULL;
- }
- spin_unlock(&afs_server_peer_lock);
-
- /* finish cleaning up the server */
- for (loop = AFS_SERVER_CONN_LIST_SIZE - 1; loop >= 0; loop--)
- if (server->fs_conn[loop])
- rxrpc_put_connection(server->fs_conn[loop]);
-
- if (server->vlserver)
- rxrpc_put_connection(server->vlserver);
+ ASSERTCMP(server->fs_vnodes.rb_node, ==, NULL);
+ ASSERTCMP(server->cb_promises.rb_node, ==, NULL);
+ ASSERTCMP(server->cb_break_head, ==, server->cb_break_tail);
+ ASSERTCMP(atomic_read(&server->cb_break_n), ==, 0);
+ afs_put_cell(server->cell);
kfree(server);
+}
- _leave(" [destroyed]");
-} /* end afs_server_do_timeout() */
-
-/*****************************************************************************/
/*
- * get a callslot on a connection to the fileserver on the specified server
+ * reap dead server records
*/
-int afs_server_request_callslot(struct afs_server *server,
- struct afs_server_callslot *callslot)
+static void afs_reap_server(struct work_struct *work)
{
- struct afs_server_callslot *pcallslot;
- struct rxrpc_connection *conn;
- int nconn, ret;
-
- _enter("%p,",server);
-
- INIT_LIST_HEAD(&callslot->link);
- callslot->task = current;
- callslot->conn = NULL;
- callslot->nconn = -1;
- callslot->ready = 0;
-
- ret = 0;
- conn = NULL;
-
- /* get hold of a callslot first */
- spin_lock(&server->fs_lock);
-
- /* resurrect the server if it's death timeout has expired */
- if (server->fs_state) {
- if (time_before(jiffies, server->fs_dead_jif)) {
- ret = server->fs_state;
- spin_unlock(&server->fs_lock);
- _leave(" = %d [still dead]", ret);
- return ret;
+ LIST_HEAD(corpses);
+ struct afs_server *server;
+ unsigned long delay, expiry;
+ time_t now;
+
+ now = get_seconds();
+ spin_lock(&afs_server_graveyard_lock);
+
+ while (!list_empty(&afs_server_graveyard)) {
+ server = list_entry(afs_server_graveyard.next,
+ struct afs_server, grave);
+
+ /* the queue is ordered most dead first */
+ expiry = server->time_of_death + afs_server_timeout;
+ if (expiry > now) {
+ delay = (expiry - now) * HZ;
+ if (!schedule_delayed_work(&afs_server_reaper, delay)) {
+ cancel_delayed_work(&afs_server_reaper);
+ schedule_delayed_work(&afs_server_reaper,
+ delay);
+ }
+ break;
}
- server->fs_state = 0;
- }
-
- /* try and find a connection that has spare callslots */
- for (nconn = 0; nconn < AFS_SERVER_CONN_LIST_SIZE; nconn++) {
- if (server->fs_conn_cnt[nconn] > 0) {
- server->fs_conn_cnt[nconn]--;
- spin_unlock(&server->fs_lock);
- callslot->nconn = nconn;
- goto obtained_slot;
+ write_lock(&server->cell->servers_lock);
+ write_lock(&afs_servers_lock);
+ if (atomic_read(&server->usage) > 0) {
+ list_del_init(&server->grave);
+ } else {
+ list_move_tail(&server->grave, &corpses);
+ list_del_init(&server->link);
+ rb_erase(&server->master_rb, &afs_servers);
}
+ write_unlock(&afs_servers_lock);
+ write_unlock(&server->cell->servers_lock);
}
- /* none were available - wait interruptibly for one to become
- * available */
- set_current_state(TASK_INTERRUPTIBLE);
- list_add_tail(&callslot->link, &server->fs_callq);
- spin_unlock(&server->fs_lock);
-
- while (!callslot->ready && !signal_pending(current)) {
- schedule();
- set_current_state(TASK_INTERRUPTIBLE);
- }
-
- set_current_state(TASK_RUNNING);
-
- /* even if we were interrupted we may still be queued */
- if (!callslot->ready) {
- spin_lock(&server->fs_lock);
- list_del_init(&callslot->link);
- spin_unlock(&server->fs_lock);
- }
-
- nconn = callslot->nconn;
+ spin_unlock(&afs_server_graveyard_lock);
- /* if interrupted, we must release any slot we also got before
- * returning an error */
- if (signal_pending(current)) {
- ret = -EINTR;
- goto error_release;
+ /* now reap the corpses we've extracted */
+ while (!list_empty(&corpses)) {
+ server = list_entry(corpses.next, struct afs_server, grave);
+ list_del(&server->grave);
+ afs_destroy_server(server);
}
+}
- /* if we were woken up with an error, then pass that error back to the
- * called */
- if (nconn < 0) {
- _leave(" = %d", callslot->errno);
- return callslot->errno;
- }
-
- /* were we given a connection directly? */
- if (callslot->conn) {
- /* yes - use it */
- _leave(" = 0 (nc=%d)", nconn);
- return 0;
- }
-
- /* got a callslot, but no connection */
- obtained_slot:
-
- /* need to get hold of the RxRPC connection */
- down_write(&server->sem);
-
- /* quick check to see if there's an outstanding error */
- ret = server->fs_state;
- if (ret)
- goto error_release_upw;
-
- if (server->fs_conn[nconn]) {
- /* reuse an existing connection */
- rxrpc_get_connection(server->fs_conn[nconn]);
- callslot->conn = server->fs_conn[nconn];
- }
- else {
- /* create a new connection */
- ret = rxrpc_create_connection(afs_transport,
- htons(7000),
- server->addr.s_addr,
- FS_SERVICE_ID,
- NULL,
- &server->fs_conn[nconn]);
-
- if (ret < 0)
- goto error_release_upw;
-
- callslot->conn = server->fs_conn[0];
- rxrpc_get_connection(callslot->conn);
- }
-
- up_write(&server->sem);
-
- _leave(" = 0");
- return 0;
-
- /* handle an error occurring */
- error_release_upw:
- up_write(&server->sem);
-
- error_release:
- /* either release the callslot or pass it along to another deserving
- * task */
- spin_lock(&server->fs_lock);
-
- if (nconn < 0) {
- /* no callslot allocated */
- }
- else if (list_empty(&server->fs_callq)) {
- /* no one waiting */
- server->fs_conn_cnt[nconn]++;
- spin_unlock(&server->fs_lock);
- }
- else {
- /* someone's waiting - dequeue them and wake them up */
- pcallslot = list_entry(server->fs_callq.next,
- struct afs_server_callslot, link);
- list_del_init(&pcallslot->link);
-
- pcallslot->errno = server->fs_state;
- if (!pcallslot->errno) {
- /* pass them out callslot details */
- callslot->conn = xchg(&pcallslot->conn,
- callslot->conn);
- pcallslot->nconn = nconn;
- callslot->nconn = nconn = -1;
- }
- pcallslot->ready = 1;
- wake_up_process(pcallslot->task);
- spin_unlock(&server->fs_lock);
- }
-
- rxrpc_put_connection(callslot->conn);
- callslot->conn = NULL;
-
- _leave(" = %d", ret);
- return ret;
-
-} /* end afs_server_request_callslot() */
-
-/*****************************************************************************/
-/*
- * release a callslot back to the server
- * - transfers the RxRPC connection to the next pending callslot if possible
- */
-void afs_server_release_callslot(struct afs_server *server,
- struct afs_server_callslot *callslot)
-{
- struct afs_server_callslot *pcallslot;
-
- _enter("{ad=%08x,cnt=%u},{%d}",
- ntohl(server->addr.s_addr),
- server->fs_conn_cnt[callslot->nconn],
- callslot->nconn);
-
- BUG_ON(callslot->nconn < 0);
-
- spin_lock(&server->fs_lock);
-
- if (list_empty(&server->fs_callq)) {
- /* no one waiting */
- server->fs_conn_cnt[callslot->nconn]++;
- spin_unlock(&server->fs_lock);
- }
- else {
- /* someone's waiting - dequeue them and wake them up */
- pcallslot = list_entry(server->fs_callq.next,
- struct afs_server_callslot, link);
- list_del_init(&pcallslot->link);
-
- pcallslot->errno = server->fs_state;
- if (!pcallslot->errno) {
- /* pass them out callslot details */
- callslot->conn = xchg(&pcallslot->conn, callslot->conn);
- pcallslot->nconn = callslot->nconn;
- callslot->nconn = -1;
- }
-
- pcallslot->ready = 1;
- wake_up_process(pcallslot->task);
- spin_unlock(&server->fs_lock);
- }
-
- rxrpc_put_connection(callslot->conn);
-
- _leave("");
-} /* end afs_server_release_callslot() */
-
-/*****************************************************************************/
/*
- * get a handle to a connection to the vlserver (volume location) on the
- * specified server
+ * discard all the server records for rmmod
*/
-int afs_server_get_vlconn(struct afs_server *server,
- struct rxrpc_connection **_conn)
+void __exit afs_purge_servers(void)
{
- struct rxrpc_connection *conn;
- int ret;
-
- _enter("%p,", server);
-
- ret = 0;
- conn = NULL;
- down_read(&server->sem);
-
- if (server->vlserver) {
- /* reuse an existing connection */
- rxrpc_get_connection(server->vlserver);
- conn = server->vlserver;
- up_read(&server->sem);
- }
- else {
- /* create a new connection */
- up_read(&server->sem);
- down_write(&server->sem);
- if (!server->vlserver) {
- ret = rxrpc_create_connection(afs_transport,
- htons(7003),
- server->addr.s_addr,
- VL_SERVICE_ID,
- NULL,
- &server->vlserver);
- }
- if (ret == 0) {
- rxrpc_get_connection(server->vlserver);
- conn = server->vlserver;
- }
- up_write(&server->sem);
- }
-
- *_conn = conn;
- _leave(" = %d", ret);
- return ret;
-} /* end afs_server_get_vlconn() */
+ afs_server_timeout = 0;
+ cancel_delayed_work(&afs_server_reaper);
+ schedule_delayed_work(&afs_server_reaper, 0);
+}
+++ /dev/null
-/* server.h: AFS server record
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_SERVER_H
-#define _LINUX_AFS_SERVER_H
-
-#include "types.h"
-#include "kafstimod.h"
-#include <rxrpc/peer.h>
-#include <linux/rwsem.h>
-
-extern spinlock_t afs_server_peer_lock;
-
-/*****************************************************************************/
-/*
- * AFS server record
- */
-struct afs_server
-{
- atomic_t usage;
- struct afs_cell *cell; /* cell in which server resides */
- struct list_head link; /* link in cell's server list */
- struct rw_semaphore sem; /* access lock */
- struct afs_timer timeout; /* graveyard timeout */
- struct in_addr addr; /* server address */
- struct rxrpc_peer *peer; /* peer record for this server */
- struct rxrpc_connection *vlserver; /* connection to the volume location service */
-
- /* file service access */
-#define AFS_SERVER_CONN_LIST_SIZE 2
- struct rxrpc_connection *fs_conn[AFS_SERVER_CONN_LIST_SIZE]; /* FS connections */
- unsigned fs_conn_cnt[AFS_SERVER_CONN_LIST_SIZE]; /* per conn call count */
- struct list_head fs_callq; /* queue of processes waiting to make a call */
- spinlock_t fs_lock; /* access lock */
- int fs_state; /* 0 or reason FS currently marked dead (-errno) */
- unsigned fs_rtt; /* FS round trip time */
- unsigned long fs_act_jif; /* time at which last activity occurred */
- unsigned long fs_dead_jif; /* time at which no longer to be considered dead */
-
- /* callback promise management */
- struct list_head cb_promises; /* as yet unbroken promises from this server */
- spinlock_t cb_lock; /* access lock */
-};
-
-extern int afs_server_lookup(struct afs_cell *cell,
- const struct in_addr *addr,
- struct afs_server **_server);
-
-#define afs_get_server(S) do { atomic_inc(&(S)->usage); } while(0)
-
-extern void afs_put_server(struct afs_server *server);
-extern void afs_server_do_timeout(struct afs_server *server);
-
-extern int afs_server_find_by_peer(const struct rxrpc_peer *peer,
- struct afs_server **_server);
-
-extern int afs_server_get_vlconn(struct afs_server *server,
- struct rxrpc_connection **_conn);
-
-static inline
-struct afs_server *afs_server_get_from_peer(struct rxrpc_peer *peer)
-{
- struct afs_server *server;
-
- spin_lock(&afs_server_peer_lock);
- server = peer->user;
- if (server)
- afs_get_server(server);
- spin_unlock(&afs_server_peer_lock);
-
- return server;
-}
-
-/*****************************************************************************/
-/*
- * AFS server callslot grant record
- */
-struct afs_server_callslot
-{
- struct list_head link; /* link in server's list */
- struct task_struct *task; /* process waiting to make call */
- struct rxrpc_connection *conn; /* connection to use (or NULL on error) */
- short nconn; /* connection slot number (-1 on error) */
- char ready; /* T when ready */
- int errno; /* error number if nconn==-1 */
-};
-
-extern int afs_server_request_callslot(struct afs_server *server,
- struct afs_server_callslot *callslot);
-
-extern void afs_server_release_callslot(struct afs_server *server,
- struct afs_server_callslot *callslot);
-
-#endif /* _LINUX_AFS_SERVER_H */
-/*
- * Copyright (c) 2002 Red Hat, Inc. All rights reserved.
+/* AFS superblock handling
+ *
+ * Copyright (c) 2002, 2007 Red Hat, Inc. All rights reserved.
*
* This software may be freely redistributed under the terms of the
* GNU General Public License.
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Authors: David Howells <dhowells@redhat.com>
- * David Woodhouse <dwmw2@cambridge.redhat.com>
+ * David Woodhouse <dwmw2@redhat.com>
*
*/
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
-#include "vnode.h"
-#include "volume.h"
-#include "cell.h"
-#include "cmservice.h"
-#include "fsclient.h"
-#include "super.h"
#include "internal.h"
#define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */
-struct afs_mount_params {
- int rwpath;
- struct afs_cell *default_cell;
- struct afs_volume *volume;
-};
-
static void afs_i_init_once(void *foo, struct kmem_cache *cachep,
unsigned long flags);
.drop_inode = generic_delete_inode,
.destroy_inode = afs_destroy_inode,
.clear_inode = afs_clear_inode,
+ .umount_begin = afs_umount_begin,
.put_super = afs_put_super,
};
static struct kmem_cache *afs_inode_cachep;
static atomic_t afs_count_active_inodes;
-/*****************************************************************************/
/*
* initialise the filesystem
*/
_enter("");
- afs_timer_init(&afs_mntpt_expiry_timer, &afs_mntpt_expiry_timer_ops);
-
/* create ourselves an inode cache */
atomic_set(&afs_count_active_inodes, 0);
ret = register_filesystem(&afs_fs_type);
if (ret < 0) {
kmem_cache_destroy(afs_inode_cachep);
- kleave(" = %d", ret);
+ _leave(" = %d", ret);
return ret;
}
- kleave(" = 0");
+ _leave(" = 0");
return 0;
-} /* end afs_fs_init() */
+}
-/*****************************************************************************/
/*
* clean up the filesystem
*/
void __exit afs_fs_exit(void)
{
+ _enter("");
+
+ afs_mntpt_kill_timer();
unregister_filesystem(&afs_fs_type);
if (atomic_read(&afs_count_active_inodes) != 0) {
}
kmem_cache_destroy(afs_inode_cachep);
+ _leave("");
+}
-} /* end afs_fs_exit() */
-
-/*****************************************************************************/
/*
* check that an argument has a value
*/
return 0;
}
return 1;
-} /* end want_arg() */
+}
-/*****************************************************************************/
/*
* check that there's no subsequent value
*/
return 0;
}
return 1;
-} /* end want_no_value() */
+}
-/*****************************************************************************/
/*
* parse the mount options
* - this function has been shamelessly adapted from the ext3 fs which
* shamelessly adapted it from the msdos fs
*/
-static int afs_super_parse_options(struct afs_mount_params *params,
- char *options,
- const char **devname)
+static int afs_parse_options(struct afs_mount_params *params,
+ char *options, const char **devname)
{
+ struct afs_cell *cell;
char *key, *value;
int ret;
options[PAGE_SIZE - 1] = 0;
ret = 0;
- while ((key = strsep(&options, ",")) != 0)
- {
+ while ((key = strsep(&options, ","))) {
value = strchr(key, '=');
if (value)
*value++ = 0;
- printk("kAFS: KEY: %s, VAL:%s\n", key, value ?: "-");
+ _debug("kAFS: KEY: %s, VAL:%s", key, value ?: "-");
if (strcmp(key, "rwpath") == 0) {
if (!want_no_value(&value, "rwpath"))
return -EINVAL;
params->rwpath = 1;
- continue;
- }
- else if (strcmp(key, "vol") == 0) {
+ } else if (strcmp(key, "vol") == 0) {
if (!want_arg(&value, "vol"))
return -EINVAL;
*devname = value;
- continue;
- }
- else if (strcmp(key, "cell") == 0) {
+ } else if (strcmp(key, "cell") == 0) {
if (!want_arg(&value, "cell"))
return -EINVAL;
- afs_put_cell(params->default_cell);
- ret = afs_cell_lookup(value,
- strlen(value),
- ¶ms->default_cell);
- if (ret < 0)
- return -EINVAL;
- continue;
+ cell = afs_cell_lookup(value, strlen(value));
+ if (IS_ERR(cell))
+ return PTR_ERR(cell);
+ afs_put_cell(params->cell);
+ params->cell = cell;
+ } else {
+ printk("kAFS: Unknown mount option: '%s'\n", key);
+ ret = -EINVAL;
+ goto error;
}
-
- printk("kAFS: Unknown mount option: '%s'\n", key);
- ret = -EINVAL;
- goto error;
}
ret = 0;
-
- error:
+error:
_leave(" = %d", ret);
return ret;
-} /* end afs_super_parse_options() */
+}
+
+/*
+ * parse a device name to get cell name, volume name, volume type and R/W
+ * selector
+ * - this can be one of the following:
+ * "%[cell:]volume[.]" R/W volume
+ * "#[cell:]volume[.]" R/O or R/W volume (rwpath=0),
+ * or R/W (rwpath=1) volume
+ * "%[cell:]volume.readonly" R/O volume
+ * "#[cell:]volume.readonly" R/O volume
+ * "%[cell:]volume.backup" Backup volume
+ * "#[cell:]volume.backup" Backup volume
+ */
+static int afs_parse_device_name(struct afs_mount_params *params,
+ const char *name)
+{
+ struct afs_cell *cell;
+ const char *cellname, *suffix;
+ int cellnamesz;
+
+ _enter(",%s", name);
+
+ if (!name) {
+ printk(KERN_ERR "kAFS: no volume name specified\n");
+ return -EINVAL;
+ }
+
+ if ((name[0] != '%' && name[0] != '#') || !name[1]) {
+ printk(KERN_ERR "kAFS: unparsable volume name\n");
+ return -EINVAL;
+ }
+
+ /* determine the type of volume we're looking for */
+ params->type = AFSVL_ROVOL;
+ params->force = false;
+ if (params->rwpath || name[0] == '%') {
+ params->type = AFSVL_RWVOL;
+ params->force = true;
+ }
+ name++;
+
+ /* split the cell name out if there is one */
+ params->volname = strchr(name, ':');
+ if (params->volname) {
+ cellname = name;
+ cellnamesz = params->volname - name;
+ params->volname++;
+ } else {
+ params->volname = name;
+ cellname = NULL;
+ cellnamesz = 0;
+ }
+
+ /* the volume type is further affected by a possible suffix */
+ suffix = strrchr(params->volname, '.');
+ if (suffix) {
+ if (strcmp(suffix, ".readonly") == 0) {
+ params->type = AFSVL_ROVOL;
+ params->force = true;
+ } else if (strcmp(suffix, ".backup") == 0) {
+ params->type = AFSVL_BACKVOL;
+ params->force = true;
+ } else if (suffix[1] == 0) {
+ } else {
+ suffix = NULL;
+ }
+ }
+
+ params->volnamesz = suffix ?
+ suffix - params->volname : strlen(params->volname);
+
+ _debug("cell %*.*s [%p]",
+ cellnamesz, cellnamesz, cellname ?: "", params->cell);
+
+ /* lookup the cell record */
+ if (cellname || !params->cell) {
+ cell = afs_cell_lookup(cellname, cellnamesz);
+ if (IS_ERR(cell)) {
+ printk(KERN_ERR "kAFS: unable to lookup cell '%s'\n",
+ cellname ?: "");
+ return PTR_ERR(cell);
+ }
+ afs_put_cell(params->cell);
+ params->cell = cell;
+ }
+
+ _debug("CELL:%s [%p] VOLUME:%*.*s SUFFIX:%s TYPE:%d%s",
+ params->cell->name, params->cell,
+ params->volnamesz, params->volnamesz, params->volname,
+ suffix ?: "-", params->type, params->force ? " FORCE" : "");
+
+ return 0;
+}
-/*****************************************************************************/
/*
* check a superblock to see if it's the one we're looking for
*/
struct afs_super_info *as = sb->s_fs_info;
return as->volume == params->volume;
-} /* end afs_test_super() */
+}
-/*****************************************************************************/
/*
* fill in the superblock
*/
-static int afs_fill_super(struct super_block *sb, void *data, int silent)
+static int afs_fill_super(struct super_block *sb, void *data)
{
struct afs_mount_params *params = data;
struct afs_super_info *as = NULL;
struct inode *inode = NULL;
int ret;
- kenter("");
+ _enter("");
/* allocate a superblock info record */
as = kzalloc(sizeof(struct afs_super_info), GFP_KERNEL);
fid.vid = as->volume->vid;
fid.vnode = 1;
fid.unique = 1;
- ret = afs_iget(sb, &fid, &inode);
- if (ret < 0)
- goto error;
+ inode = afs_iget(sb, params->key, &fid, NULL, NULL);
+ if (IS_ERR(inode))
+ goto error_inode;
ret = -ENOMEM;
root = d_alloc_root(inode);
sb->s_root = root;
- kleave(" = 0");
+ _leave(" = 0");
return 0;
- error:
+error_inode:
+ ret = PTR_ERR(inode);
+ inode = NULL;
+error:
iput(inode);
afs_put_volume(as->volume);
kfree(as);
sb->s_fs_info = NULL;
- kleave(" = %d", ret);
+ _leave(" = %d", ret);
return ret;
-} /* end afs_fill_super() */
+}
-/*****************************************************************************/
/*
* get an AFS superblock
* - TODO: don't use get_sb_nodev(), but rather call sget() directly
{
struct afs_mount_params params;
struct super_block *sb;
+ struct afs_volume *vol;
+ struct key *key;
int ret;
_enter(",,%s,%p", dev_name, options);
memset(¶ms, 0, sizeof(params));
- /* start the cache manager */
- ret = afscm_start();
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- /* parse the options */
+ /* parse the options and device name */
if (options) {
- ret = afs_super_parse_options(¶ms, options, &dev_name);
+ ret = afs_parse_options(¶ms, options, &dev_name);
if (ret < 0)
goto error;
- if (!dev_name) {
- printk("kAFS: no volume name specified\n");
- ret = -EINVAL;
- goto error;
- }
}
- /* parse the device name */
- ret = afs_volume_lookup(dev_name,
- params.default_cell,
- params.rwpath,
- ¶ms.volume);
+
+ ret = afs_parse_device_name(¶ms, dev_name);
if (ret < 0)
goto error;
- /* allocate a deviceless superblock */
- sb = sget(fs_type, afs_test_super, set_anon_super, ¶ms);
- if (IS_ERR(sb))
+ /* try and do the mount securely */
+ key = afs_request_key(params.cell);
+ if (IS_ERR(key)) {
+ _leave(" = %ld [key]", PTR_ERR(key));
+ ret = PTR_ERR(key);
goto error;
+ }
+ params.key = key;
- sb->s_flags = flags;
+ /* parse the device name */
+ vol = afs_volume_lookup(¶ms);
+ if (IS_ERR(vol)) {
+ ret = PTR_ERR(vol);
+ goto error;
+ }
+ params.volume = vol;
- ret = afs_fill_super(sb, ¶ms, flags & MS_SILENT ? 1 : 0);
- if (ret < 0) {
- up_write(&sb->s_umount);
- deactivate_super(sb);
+ /* allocate a deviceless superblock */
+ sb = sget(fs_type, afs_test_super, set_anon_super, ¶ms);
+ if (IS_ERR(sb)) {
+ ret = PTR_ERR(sb);
goto error;
}
- sb->s_flags |= MS_ACTIVE;
- simple_set_mnt(mnt, sb);
+ if (!sb->s_root) {
+ /* initial superblock/root creation */
+ _debug("create");
+ sb->s_flags = flags;
+ ret = afs_fill_super(sb, ¶ms);
+ if (ret < 0) {
+ up_write(&sb->s_umount);
+ deactivate_super(sb);
+ goto error;
+ }
+ sb->s_flags |= MS_ACTIVE;
+ } else {
+ _debug("reuse");
+ ASSERTCMP(sb->s_flags, &, MS_ACTIVE);
+ }
+
+ simple_set_mnt(mnt, sb);
afs_put_volume(params.volume);
- afs_put_cell(params.default_cell);
- _leave(" = 0 [%p]", 0, sb);
+ afs_put_cell(params.cell);
+ _leave(" = 0 [%p]", sb);
return 0;
- error:
+error:
afs_put_volume(params.volume);
- afs_put_cell(params.default_cell);
- afscm_stop();
+ afs_put_cell(params.cell);
+ key_put(params.key);
_leave(" = %d", ret);
return ret;
-} /* end afs_get_sb() */
+}
-/*****************************************************************************/
/*
* finish the unmounting process on the superblock
*/
_enter("");
afs_put_volume(as->volume);
- afscm_stop();
_leave("");
-} /* end afs_put_super() */
+}
-/*****************************************************************************/
/*
* initialise an inode cache slab element prior to any use
*/
static void afs_i_init_once(void *_vnode, struct kmem_cache *cachep,
unsigned long flags)
{
- struct afs_vnode *vnode = (struct afs_vnode *) _vnode;
+ struct afs_vnode *vnode = _vnode;
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR) {
memset(vnode, 0, sizeof(*vnode));
inode_init_once(&vnode->vfs_inode);
init_waitqueue_head(&vnode->update_waitq);
+ mutex_init(&vnode->permits_lock);
+ mutex_init(&vnode->validate_lock);
spin_lock_init(&vnode->lock);
- INIT_LIST_HEAD(&vnode->cb_link);
- INIT_LIST_HEAD(&vnode->cb_hash_link);
- afs_timer_init(&vnode->cb_timeout,
- &afs_vnode_cb_timed_out_ops);
+ INIT_WORK(&vnode->cb_broken_work, afs_broken_callback_work);
}
+}
-} /* end afs_i_init_once() */
-
-/*****************************************************************************/
/*
* allocate an AFS inode struct from our slab cache
*/
{
struct afs_vnode *vnode;
- vnode = (struct afs_vnode *)
- kmem_cache_alloc(afs_inode_cachep, GFP_KERNEL);
+ vnode = kmem_cache_alloc(afs_inode_cachep, GFP_KERNEL);
if (!vnode)
return NULL;
vnode->volume = NULL;
vnode->update_cnt = 0;
- vnode->flags = 0;
+ vnode->flags = 1 << AFS_VNODE_UNSET;
+ vnode->cb_promised = false;
return &vnode->vfs_inode;
-} /* end afs_alloc_inode() */
+}
-/*****************************************************************************/
/*
* destroy an AFS inode struct
*/
static void afs_destroy_inode(struct inode *inode)
{
+ struct afs_vnode *vnode = AFS_FS_I(inode);
+
_enter("{%lu}", inode->i_ino);
- kmem_cache_free(afs_inode_cachep, AFS_FS_I(inode));
+ _debug("DESTROY INODE %p", inode);
- atomic_dec(&afs_count_active_inodes);
+ ASSERTCMP(vnode->server, ==, NULL);
-} /* end afs_destroy_inode() */
+ kmem_cache_free(afs_inode_cachep, vnode);
+ atomic_dec(&afs_count_active_inodes);
+}
+++ /dev/null
-/* super.h: AFS filesystem internal private data
- *
- * Copyright (c) 2002 Red Hat, Inc. All rights reserved.
- *
- * This software may be freely redistributed under the terms of the
- * GNU General Public License.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Authors: David Woodhouse <dwmw2@cambridge.redhat.com>
- * David Howells <dhowells@redhat.com>
- *
- */
-
-#ifndef _LINUX_AFS_SUPER_H
-#define _LINUX_AFS_SUPER_H
-
-#include <linux/fs.h>
-#include "server.h"
-
-#ifdef __KERNEL__
-
-/*****************************************************************************/
-/*
- * AFS superblock private data
- * - there's one superblock per volume
- */
-struct afs_super_info
-{
- struct afs_volume *volume; /* volume record */
- char rwparent; /* T if parent is R/W AFS volume */
-};
-
-static inline struct afs_super_info *AFS_FS_S(struct super_block *sb)
-{
- return sb->s_fs_info;
-}
-
-extern struct file_system_type afs_fs_type;
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_AFS_SUPER_H */
+++ /dev/null
-/* transport.h: AFS transport management
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_TRANSPORT_H
-#define _LINUX_AFS_TRANSPORT_H
-
-#include "types.h"
-#include <rxrpc/transport.h>
-
-/* the cache manager transport endpoint */
-extern struct rxrpc_transport *afs_transport;
-
-#endif /* _LINUX_AFS_TRANSPORT_H */
+++ /dev/null
-/* types.h: AFS types
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_TYPES_H
-#define _LINUX_AFS_TYPES_H
-
-#ifdef __KERNEL__
-#include <rxrpc/types.h>
-#endif /* __KERNEL__ */
-
-typedef unsigned afs_volid_t;
-typedef unsigned afs_vnodeid_t;
-typedef unsigned long long afs_dataversion_t;
-
-typedef enum {
- AFSVL_RWVOL, /* read/write volume */
- AFSVL_ROVOL, /* read-only volume */
- AFSVL_BACKVOL, /* backup volume */
-} __attribute__((packed)) afs_voltype_t;
-
-typedef enum {
- AFS_FTYPE_INVALID = 0,
- AFS_FTYPE_FILE = 1,
- AFS_FTYPE_DIR = 2,
- AFS_FTYPE_SYMLINK = 3,
-} afs_file_type_t;
-
-#ifdef __KERNEL__
-
-struct afs_cell;
-struct afs_vnode;
-
-/*****************************************************************************/
-/*
- * AFS file identifier
- */
-struct afs_fid
-{
- afs_volid_t vid; /* volume ID */
- afs_vnodeid_t vnode; /* file index within volume */
- unsigned unique; /* unique ID number (file index version) */
-};
-
-/*****************************************************************************/
-/*
- * AFS callback notification
- */
-typedef enum {
- AFSCM_CB_UNTYPED = 0, /* no type set on CB break */
- AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */
- AFSCM_CB_SHARED = 2, /* CB shared by other CM's */
- AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */
-} afs_callback_type_t;
-
-struct afs_callback
-{
- struct afs_server *server; /* server that made the promise */
- struct afs_fid fid; /* file identifier */
- unsigned version; /* callback version */
- unsigned expiry; /* time at which expires */
- afs_callback_type_t type; /* type of callback */
-};
-
-#define AFSCBMAX 50
-
-/*****************************************************************************/
-/*
- * AFS volume information
- */
-struct afs_volume_info
-{
- afs_volid_t vid; /* volume ID */
- afs_voltype_t type; /* type of this volume */
- afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */
-
- /* list of fileservers serving this volume */
- size_t nservers; /* number of entries used in servers[] */
- struct {
- struct in_addr addr; /* fileserver address */
- } servers[8];
-};
-
-/*****************************************************************************/
-/*
- * AFS file status information
- */
-struct afs_file_status
-{
- unsigned if_version; /* interface version */
-#define AFS_FSTATUS_VERSION 1
-
- afs_file_type_t type; /* file type */
- unsigned nlink; /* link count */
- size_t size; /* file size */
- afs_dataversion_t version; /* current data version */
- unsigned author; /* author ID */
- unsigned owner; /* owner ID */
- unsigned caller_access; /* access rights for authenticated caller */
- unsigned anon_access; /* access rights for unauthenticated caller */
- umode_t mode; /* UNIX mode */
- struct afs_fid parent; /* parent file ID */
- time_t mtime_client; /* last time client changed data */
- time_t mtime_server; /* last time server changed data */
-};
-
-/*****************************************************************************/
-/*
- * AFS volume synchronisation information
- */
-struct afs_volsync
-{
- time_t creation; /* volume creation time */
-};
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_AFS_TYPES_H */
--- /dev/null
+/* RTNETLINK client
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_addr.h>
+#include <linux/if_arp.h>
+#include <linux/inetdevice.h>
+#include <net/netlink.h>
+#include "internal.h"
+
+struct afs_rtm_desc {
+ struct socket *nlsock;
+ struct afs_interface *bufs;
+ u8 *mac;
+ size_t nbufs;
+ size_t maxbufs;
+ void *data;
+ ssize_t datalen;
+ size_t datamax;
+ int msg_seq;
+ unsigned mac_index;
+ bool wantloopback;
+ int (*parse)(struct afs_rtm_desc *, struct nlmsghdr *);
+};
+
+/*
+ * parse an RTM_GETADDR response
+ */
+static int afs_rtm_getaddr_parse(struct afs_rtm_desc *desc,
+ struct nlmsghdr *nlhdr)
+{
+ struct afs_interface *this;
+ struct ifaddrmsg *ifa;
+ struct rtattr *rtattr;
+ const char *name;
+ size_t len;
+
+ ifa = (struct ifaddrmsg *) NLMSG_DATA(nlhdr);
+
+ _enter("{ix=%d,af=%d}", ifa->ifa_index, ifa->ifa_family);
+
+ if (ifa->ifa_family != AF_INET) {
+ _leave(" = 0 [family %d]", ifa->ifa_family);
+ return 0;
+ }
+ if (desc->nbufs >= desc->maxbufs) {
+ _leave(" = 0 [max %zu/%zu]", desc->nbufs, desc->maxbufs);
+ return 0;
+ }
+
+ this = &desc->bufs[desc->nbufs];
+
+ this->index = ifa->ifa_index;
+ this->netmask.s_addr = inet_make_mask(ifa->ifa_prefixlen);
+ this->mtu = 0;
+
+ rtattr = NLMSG_DATA(nlhdr) + NLMSG_ALIGN(sizeof(struct ifaddrmsg));
+ len = NLMSG_PAYLOAD(nlhdr, sizeof(struct ifaddrmsg));
+
+ name = "unknown";
+ for (; RTA_OK(rtattr, len); rtattr = RTA_NEXT(rtattr, len)) {
+ switch (rtattr->rta_type) {
+ case IFA_ADDRESS:
+ memcpy(&this->address, RTA_DATA(rtattr), 4);
+ break;
+ case IFA_LABEL:
+ name = RTA_DATA(rtattr);
+ break;
+ }
+ }
+
+ _debug("%s: "NIPQUAD_FMT"/"NIPQUAD_FMT,
+ name, NIPQUAD(this->address), NIPQUAD(this->netmask));
+
+ desc->nbufs++;
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * parse an RTM_GETLINK response for MTUs
+ */
+static int afs_rtm_getlink_if_parse(struct afs_rtm_desc *desc,
+ struct nlmsghdr *nlhdr)
+{
+ struct afs_interface *this;
+ struct ifinfomsg *ifi;
+ struct rtattr *rtattr;
+ const char *name;
+ size_t len, loop;
+
+ ifi = (struct ifinfomsg *) NLMSG_DATA(nlhdr);
+
+ _enter("{ix=%d}", ifi->ifi_index);
+
+ for (loop = 0; loop < desc->nbufs; loop++) {
+ this = &desc->bufs[loop];
+ if (this->index == ifi->ifi_index)
+ goto found;
+ }
+
+ _leave(" = 0 [no match]");
+ return 0;
+
+found:
+ if (ifi->ifi_type == ARPHRD_LOOPBACK && !desc->wantloopback) {
+ _leave(" = 0 [loopback]");
+ return 0;
+ }
+
+ rtattr = NLMSG_DATA(nlhdr) + NLMSG_ALIGN(sizeof(struct ifinfomsg));
+ len = NLMSG_PAYLOAD(nlhdr, sizeof(struct ifinfomsg));
+
+ name = "unknown";
+ for (; RTA_OK(rtattr, len); rtattr = RTA_NEXT(rtattr, len)) {
+ switch (rtattr->rta_type) {
+ case IFLA_MTU:
+ memcpy(&this->mtu, RTA_DATA(rtattr), 4);
+ break;
+ case IFLA_IFNAME:
+ name = RTA_DATA(rtattr);
+ break;
+ }
+ }
+
+ _debug("%s: "NIPQUAD_FMT"/"NIPQUAD_FMT" mtu %u",
+ name, NIPQUAD(this->address), NIPQUAD(this->netmask),
+ this->mtu);
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * parse an RTM_GETLINK response for the MAC address belonging to the lowest
+ * non-internal interface
+ */
+static int afs_rtm_getlink_mac_parse(struct afs_rtm_desc *desc,
+ struct nlmsghdr *nlhdr)
+{
+ struct ifinfomsg *ifi;
+ struct rtattr *rtattr;
+ const char *name;
+ size_t remain, len;
+ bool set;
+
+ ifi = (struct ifinfomsg *) NLMSG_DATA(nlhdr);
+
+ _enter("{ix=%d}", ifi->ifi_index);
+
+ if (ifi->ifi_index >= desc->mac_index) {
+ _leave(" = 0 [high]");
+ return 0;
+ }
+ if (ifi->ifi_type == ARPHRD_LOOPBACK) {
+ _leave(" = 0 [loopback]");
+ return 0;
+ }
+
+ rtattr = NLMSG_DATA(nlhdr) + NLMSG_ALIGN(sizeof(struct ifinfomsg));
+ remain = NLMSG_PAYLOAD(nlhdr, sizeof(struct ifinfomsg));
+
+ name = "unknown";
+ set = false;
+ for (; RTA_OK(rtattr, remain); rtattr = RTA_NEXT(rtattr, remain)) {
+ switch (rtattr->rta_type) {
+ case IFLA_ADDRESS:
+ len = RTA_PAYLOAD(rtattr);
+ memcpy(desc->mac, RTA_DATA(rtattr),
+ min_t(size_t, len, 6));
+ desc->mac_index = ifi->ifi_index;
+ set = true;
+ break;
+ case IFLA_IFNAME:
+ name = RTA_DATA(rtattr);
+ break;
+ }
+ }
+
+ if (set)
+ _debug("%s: %02x:%02x:%02x:%02x:%02x:%02x",
+ name,
+ desc->mac[0], desc->mac[1], desc->mac[2],
+ desc->mac[3], desc->mac[4], desc->mac[5]);
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * read the rtnetlink response and pass to parsing routine
+ */
+static int afs_read_rtm(struct afs_rtm_desc *desc)
+{
+ struct nlmsghdr *nlhdr, tmphdr;
+ struct msghdr msg;
+ struct kvec iov[1];
+ void *data;
+ bool last = false;
+ int len, ret, remain;
+
+ _enter("");
+
+ do {
+ /* first of all peek to see how big the packet is */
+ memset(&msg, 0, sizeof(msg));
+ iov[0].iov_base = &tmphdr;
+ iov[0].iov_len = sizeof(tmphdr);
+ len = kernel_recvmsg(desc->nlsock, &msg, iov, 1,
+ sizeof(tmphdr), MSG_PEEK | MSG_TRUNC);
+ if (len < 0) {
+ _leave(" = %d [peek]", len);
+ return len;
+ }
+ if (len == 0)
+ continue;
+ if (len < sizeof(tmphdr) || len < NLMSG_PAYLOAD(&tmphdr, 0)) {
+ _leave(" = -EMSGSIZE");
+ return -EMSGSIZE;
+ }
+
+ if (desc->datamax < len) {
+ kfree(desc->data);
+ desc->data = NULL;
+ data = kmalloc(len, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ desc->data = data;
+ }
+ desc->datamax = len;
+
+ /* read all the data from this packet */
+ iov[0].iov_base = desc->data;
+ iov[0].iov_len = desc->datamax;
+ desc->datalen = kernel_recvmsg(desc->nlsock, &msg, iov, 1,
+ desc->datamax, 0);
+ if (desc->datalen < 0) {
+ _leave(" = %ld [recv]", desc->datalen);
+ return desc->datalen;
+ }
+
+ nlhdr = desc->data;
+
+ /* check if the header is valid */
+ if (!NLMSG_OK(nlhdr, desc->datalen) ||
+ nlhdr->nlmsg_type == NLMSG_ERROR) {
+ _leave(" = -EIO");
+ return -EIO;
+ }
+
+ /* see if this is the last message */
+ if (nlhdr->nlmsg_type == NLMSG_DONE ||
+ !(nlhdr->nlmsg_flags & NLM_F_MULTI))
+ last = true;
+
+ /* parse the bits we got this time */
+ nlmsg_for_each_msg(nlhdr, desc->data, desc->datalen, remain) {
+ ret = desc->parse(desc, nlhdr);
+ if (ret < 0) {
+ _leave(" = %d [parse]", ret);
+ return ret;
+ }
+ }
+
+ } while (!last);
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * list the interface bound addresses to get the address and netmask
+ */
+static int afs_rtm_getaddr(struct afs_rtm_desc *desc)
+{
+ struct msghdr msg;
+ struct kvec iov[1];
+ int ret;
+
+ struct {
+ struct nlmsghdr nl_msg __attribute__((aligned(NLMSG_ALIGNTO)));
+ struct ifaddrmsg addr_msg __attribute__((aligned(NLMSG_ALIGNTO)));
+ } request;
+
+ _enter("");
+
+ memset(&request, 0, sizeof(request));
+
+ request.nl_msg.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
+ request.nl_msg.nlmsg_type = RTM_GETADDR;
+ request.nl_msg.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+ request.nl_msg.nlmsg_seq = desc->msg_seq++;
+ request.nl_msg.nlmsg_pid = 0;
+
+ memset(&msg, 0, sizeof(msg));
+ iov[0].iov_base = &request;
+ iov[0].iov_len = sizeof(request);
+
+ ret = kernel_sendmsg(desc->nlsock, &msg, iov, 1, iov[0].iov_len);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * list the interface link statuses to get the MTUs
+ */
+static int afs_rtm_getlink(struct afs_rtm_desc *desc)
+{
+ struct msghdr msg;
+ struct kvec iov[1];
+ int ret;
+
+ struct {
+ struct nlmsghdr nl_msg __attribute__((aligned(NLMSG_ALIGNTO)));
+ struct ifinfomsg link_msg __attribute__((aligned(NLMSG_ALIGNTO)));
+ } request;
+
+ _enter("");
+
+ memset(&request, 0, sizeof(request));
+
+ request.nl_msg.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ request.nl_msg.nlmsg_type = RTM_GETLINK;
+ request.nl_msg.nlmsg_flags = NLM_F_REQUEST | NLM_F_ROOT;
+ request.nl_msg.nlmsg_seq = desc->msg_seq++;
+ request.nl_msg.nlmsg_pid = 0;
+
+ memset(&msg, 0, sizeof(msg));
+ iov[0].iov_base = &request;
+ iov[0].iov_len = sizeof(request);
+
+ ret = kernel_sendmsg(desc->nlsock, &msg, iov, 1, iov[0].iov_len);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * cull any interface records for which there isn't an MTU value
+ */
+static void afs_cull_interfaces(struct afs_rtm_desc *desc)
+{
+ struct afs_interface *bufs = desc->bufs;
+ size_t nbufs = desc->nbufs;
+ int loop, point = 0;
+
+ _enter("{%zu}", nbufs);
+
+ for (loop = 0; loop < nbufs; loop++) {
+ if (desc->bufs[loop].mtu != 0) {
+ if (loop != point) {
+ ASSERTCMP(loop, >, point);
+ bufs[point] = bufs[loop];
+ }
+ point++;
+ }
+ }
+
+ desc->nbufs = point;
+ _leave(" [%zu/%zu]", desc->nbufs, nbufs);
+}
+
+/*
+ * get a list of this system's interface IPv4 addresses, netmasks and MTUs
+ * - returns the number of interface records in the buffer
+ */
+int afs_get_ipv4_interfaces(struct afs_interface *bufs, size_t maxbufs,
+ bool wantloopback)
+{
+ struct afs_rtm_desc desc;
+ int ret, loop;
+
+ _enter("");
+
+ memset(&desc, 0, sizeof(desc));
+ desc.bufs = bufs;
+ desc.maxbufs = maxbufs;
+ desc.wantloopback = wantloopback;
+
+ ret = sock_create_kern(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE,
+ &desc.nlsock);
+ if (ret < 0) {
+ _leave(" = %d [sock]", ret);
+ return ret;
+ }
+
+ /* issue RTM_GETADDR */
+ desc.parse = afs_rtm_getaddr_parse;
+ ret = afs_rtm_getaddr(&desc);
+ if (ret < 0)
+ goto error;
+ ret = afs_read_rtm(&desc);
+ if (ret < 0)
+ goto error;
+
+ /* issue RTM_GETLINK */
+ desc.parse = afs_rtm_getlink_if_parse;
+ ret = afs_rtm_getlink(&desc);
+ if (ret < 0)
+ goto error;
+ ret = afs_read_rtm(&desc);
+ if (ret < 0)
+ goto error;
+
+ afs_cull_interfaces(&desc);
+ ret = desc.nbufs;
+
+ for (loop = 0; loop < ret; loop++)
+ _debug("[%d] "NIPQUAD_FMT"/"NIPQUAD_FMT" mtu %u",
+ bufs[loop].index,
+ NIPQUAD(bufs[loop].address),
+ NIPQUAD(bufs[loop].netmask),
+ bufs[loop].mtu);
+
+error:
+ kfree(desc.data);
+ sock_release(desc.nlsock);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * get a MAC address from a random ethernet interface that has a real one
+ * - the buffer should be 6 bytes in size
+ */
+int afs_get_MAC_address(u8 mac[6])
+{
+ struct afs_rtm_desc desc;
+ int ret;
+
+ _enter("");
+
+ memset(&desc, 0, sizeof(desc));
+ desc.mac = mac;
+ desc.mac_index = UINT_MAX;
+
+ ret = sock_create_kern(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE,
+ &desc.nlsock);
+ if (ret < 0) {
+ _leave(" = %d [sock]", ret);
+ return ret;
+ }
+
+ /* issue RTM_GETLINK */
+ desc.parse = afs_rtm_getlink_mac_parse;
+ ret = afs_rtm_getlink(&desc);
+ if (ret < 0)
+ goto error;
+ ret = afs_read_rtm(&desc);
+ if (ret < 0)
+ goto error;
+
+ if (desc.mac_index < UINT_MAX) {
+ /* got a MAC address */
+ _debug("[%d] %02x:%02x:%02x:%02x:%02x:%02x",
+ desc.mac_index,
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ } else {
+ ret = -ENONET;
+ }
+
+error:
+ sock_release(desc.nlsock);
+ _leave(" = %d", ret);
+ return ret;
+}
-/* vlclient.c: AFS Volume Location Service client
+/* AFS Volume Location Service client
*
* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
#include <linux/init.h>
#include <linux/sched.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include "server.h"
-#include "volume.h"
-#include "vlclient.h"
-#include "kafsasyncd.h"
-#include "kafstimod.h"
-#include "errors.h"
#include "internal.h"
-#define VLGETENTRYBYID 503 /* AFS Get Cache Entry By ID operation ID */
-#define VLGETENTRYBYNAME 504 /* AFS Get Cache Entry By Name operation ID */
-#define VLPROBE 514 /* AFS Probe Volume Location Service operation ID */
-
-static void afs_rxvl_get_entry_by_id_attn(struct rxrpc_call *call);
-static void afs_rxvl_get_entry_by_id_error(struct rxrpc_call *call);
-
-/*****************************************************************************/
/*
- * map afs VL abort codes to/from Linux error codes
- * - called with call->lock held
+ * map volume locator abort codes to error codes
*/
-static void afs_rxvl_aemap(struct rxrpc_call *call)
+static int afs_vl_abort_to_error(u32 abort_code)
{
- int err;
-
- _enter("{%u,%u,%d}",
- call->app_err_state, call->app_abort_code, call->app_errno);
-
- switch (call->app_err_state) {
- case RXRPC_ESTATE_LOCAL_ABORT:
- call->app_abort_code = -call->app_errno;
- return;
-
- case RXRPC_ESTATE_PEER_ABORT:
- switch (call->app_abort_code) {
- case AFSVL_IDEXIST: err = -EEXIST; break;
- case AFSVL_IO: err = -EREMOTEIO; break;
- case AFSVL_NAMEEXIST: err = -EEXIST; break;
- case AFSVL_CREATEFAIL: err = -EREMOTEIO; break;
- case AFSVL_NOENT: err = -ENOMEDIUM; break;
- case AFSVL_EMPTY: err = -ENOMEDIUM; break;
- case AFSVL_ENTDELETED: err = -ENOMEDIUM; break;
- case AFSVL_BADNAME: err = -EINVAL; break;
- case AFSVL_BADINDEX: err = -EINVAL; break;
- case AFSVL_BADVOLTYPE: err = -EINVAL; break;
- case AFSVL_BADSERVER: err = -EINVAL; break;
- case AFSVL_BADPARTITION: err = -EINVAL; break;
- case AFSVL_REPSFULL: err = -EFBIG; break;
- case AFSVL_NOREPSERVER: err = -ENOENT; break;
- case AFSVL_DUPREPSERVER: err = -EEXIST; break;
- case AFSVL_RWNOTFOUND: err = -ENOENT; break;
- case AFSVL_BADREFCOUNT: err = -EINVAL; break;
- case AFSVL_SIZEEXCEEDED: err = -EINVAL; break;
- case AFSVL_BADENTRY: err = -EINVAL; break;
- case AFSVL_BADVOLIDBUMP: err = -EINVAL; break;
- case AFSVL_IDALREADYHASHED: err = -EINVAL; break;
- case AFSVL_ENTRYLOCKED: err = -EBUSY; break;
- case AFSVL_BADVOLOPER: err = -EBADRQC; break;
- case AFSVL_BADRELLOCKTYPE: err = -EINVAL; break;
- case AFSVL_RERELEASE: err = -EREMOTEIO; break;
- case AFSVL_BADSERVERFLAG: err = -EINVAL; break;
- case AFSVL_PERM: err = -EACCES; break;
- case AFSVL_NOMEM: err = -EREMOTEIO; break;
- default:
- err = afs_abort_to_error(call->app_abort_code);
- break;
- }
- call->app_errno = err;
- return;
-
+ _enter("%u", abort_code);
+
+ switch (abort_code) {
+ case AFSVL_IDEXIST: return -EEXIST;
+ case AFSVL_IO: return -EREMOTEIO;
+ case AFSVL_NAMEEXIST: return -EEXIST;
+ case AFSVL_CREATEFAIL: return -EREMOTEIO;
+ case AFSVL_NOENT: return -ENOMEDIUM;
+ case AFSVL_EMPTY: return -ENOMEDIUM;
+ case AFSVL_ENTDELETED: return -ENOMEDIUM;
+ case AFSVL_BADNAME: return -EINVAL;
+ case AFSVL_BADINDEX: return -EINVAL;
+ case AFSVL_BADVOLTYPE: return -EINVAL;
+ case AFSVL_BADSERVER: return -EINVAL;
+ case AFSVL_BADPARTITION: return -EINVAL;
+ case AFSVL_REPSFULL: return -EFBIG;
+ case AFSVL_NOREPSERVER: return -ENOENT;
+ case AFSVL_DUPREPSERVER: return -EEXIST;
+ case AFSVL_RWNOTFOUND: return -ENOENT;
+ case AFSVL_BADREFCOUNT: return -EINVAL;
+ case AFSVL_SIZEEXCEEDED: return -EINVAL;
+ case AFSVL_BADENTRY: return -EINVAL;
+ case AFSVL_BADVOLIDBUMP: return -EINVAL;
+ case AFSVL_IDALREADYHASHED: return -EINVAL;
+ case AFSVL_ENTRYLOCKED: return -EBUSY;
+ case AFSVL_BADVOLOPER: return -EBADRQC;
+ case AFSVL_BADRELLOCKTYPE: return -EINVAL;
+ case AFSVL_RERELEASE: return -EREMOTEIO;
+ case AFSVL_BADSERVERFLAG: return -EINVAL;
+ case AFSVL_PERM: return -EACCES;
+ case AFSVL_NOMEM: return -EREMOTEIO;
default:
- return;
+ return afs_abort_to_error(abort_code);
}
-} /* end afs_rxvl_aemap() */
+}
-#if 0
-/*****************************************************************************/
/*
- * probe a volume location server to see if it is still alive -- unused
+ * deliver reply data to a VL.GetEntryByXXX call
*/
-static int afs_rxvl_probe(struct afs_server *server, int alloc_flags)
+static int afs_deliver_vl_get_entry_by_xxx(struct afs_call *call,
+ struct sk_buff *skb, bool last)
{
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[1];
- size_t sent;
- int ret;
- __be32 param[1];
-
- DECLARE_WAITQUEUE(myself, current);
-
- /* get hold of the vlserver connection */
- ret = afs_server_get_vlconn(server, &conn);
- if (ret < 0)
- goto out;
-
- /* create a call through that connection */
- ret = rxrpc_create_call(conn, NULL, NULL, afs_rxvl_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = VLPROBE;
-
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
-
- /* marshall the parameters */
- param[0] = htonl(VLPROBE);
- piov[0].iov_len = sizeof(param);
- piov[0].iov_base = param;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET,
- alloc_flags, 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (call->app_call_state != RXRPC_CSTATE_CLNT_RCV_REPLY ||
- signal_pending(current))
- break;
- schedule();
- }
- set_current_state(TASK_RUNNING);
-
- ret = -EINTR;
- if (signal_pending(current))
- goto abort;
-
- switch (call->app_call_state) {
- case RXRPC_CSTATE_ERROR:
- ret = call->app_errno;
- goto out_unwait;
-
- case RXRPC_CSTATE_CLNT_GOT_REPLY:
- ret = 0;
- goto out_unwait;
-
- default:
- BUG();
- }
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- rxrpc_put_connection(conn);
- out:
- return ret;
+ struct afs_cache_vlocation *entry;
+ __be32 *bp;
+ u32 tmp;
+ int loop;
-} /* end afs_rxvl_probe() */
-#endif
+ _enter(",,%u", last);
-/*****************************************************************************/
-/*
- * look up a volume location database entry by name
- */
-int afs_rxvl_get_entry_by_name(struct afs_server *server,
- const char *volname,
- unsigned volnamesz,
- struct afs_cache_vlocation *entry)
-{
- DECLARE_WAITQUEUE(myself, current);
-
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[3];
- unsigned tmp;
- size_t sent;
- int ret, loop;
- __be32 *bp, param[2], zero;
-
- _enter(",%*.*s,%u,", volnamesz, volnamesz, volname, volnamesz);
-
- memset(entry, 0, sizeof(*entry));
-
- /* get hold of the vlserver connection */
- ret = afs_server_get_vlconn(server, &conn);
- if (ret < 0)
- goto out;
-
- /* create a call through that connection */
- ret = rxrpc_create_call(conn, NULL, NULL, afs_rxvl_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = VLGETENTRYBYNAME;
+ afs_transfer_reply(call, skb);
+ if (!last)
+ return 0;
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
+ if (call->reply_size != call->reply_max)
+ return -EBADMSG;
- /* marshall the parameters */
- piov[1].iov_len = volnamesz;
- piov[1].iov_base = (char *) volname;
-
- zero = 0;
- piov[2].iov_len = (4 - (piov[1].iov_len & 3)) & 3;
- piov[2].iov_base = &zero;
-
- param[0] = htonl(VLGETENTRYBYNAME);
- param[1] = htonl(piov[1].iov_len);
-
- piov[0].iov_len = sizeof(param);
- piov[0].iov_base = param;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 3, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- bp = rxrpc_call_alloc_scratch(call, 384);
-
- ret = rxrpc_call_read_data(call, bp, 384,
- RXRPC_CALL_READ_BLOCK |
- RXRPC_CALL_READ_ALL);
- if (ret < 0) {
- if (ret == -ECONNABORTED) {
- ret = call->app_errno;
- goto out_unwait;
- }
- goto abort;
- }
+ /* unmarshall the reply once we've received all of it */
+ entry = call->reply;
+ bp = call->buffer;
- /* unmarshall the reply */
for (loop = 0; loop < 64; loop++)
entry->name[loop] = ntohl(*bp++);
+ entry->name[loop] = 0;
bp++; /* final NUL */
bp++; /* type */
for (loop = 0; loop < 8; loop++) {
tmp = ntohl(*bp++);
+ entry->srvtmask[loop] = 0;
if (tmp & AFS_VLSF_RWVOL)
entry->srvtmask[loop] |= AFS_VOL_VTM_RW;
if (tmp & AFS_VLSF_ROVOL)
bp++; /* clone ID */
tmp = ntohl(*bp++); /* flags */
+ entry->vidmask = 0;
if (tmp & AFS_VLF_RWEXISTS)
entry->vidmask |= AFS_VOL_VTM_RW;
if (tmp & AFS_VLF_ROEXISTS)
entry->vidmask |= AFS_VOL_VTM_RO;
if (tmp & AFS_VLF_BACKEXISTS)
entry->vidmask |= AFS_VOL_VTM_BAK;
-
- ret = -ENOMEDIUM;
if (!entry->vidmask)
- goto abort;
-
- /* success */
- entry->rtime = get_seconds();
- ret = 0;
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- rxrpc_put_connection(conn);
- out:
- _leave(" = %d", ret);
- return ret;
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
-} /* end afs_rxvl_get_entry_by_name() */
-
-/*****************************************************************************/
-/*
- * look up a volume location database entry by ID
- */
-int afs_rxvl_get_entry_by_id(struct afs_server *server,
- afs_volid_t volid,
- afs_voltype_t voltype,
- struct afs_cache_vlocation *entry)
-{
- DECLARE_WAITQUEUE(myself, current);
-
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[1];
- unsigned tmp;
- size_t sent;
- int ret, loop;
- __be32 *bp, param[3];
-
- _enter(",%x,%d,", volid, voltype);
-
- memset(entry, 0, sizeof(*entry));
-
- /* get hold of the vlserver connection */
- ret = afs_server_get_vlconn(server, &conn);
- if (ret < 0)
- goto out;
-
- /* create a call through that connection */
- ret = rxrpc_create_call(conn, NULL, NULL, afs_rxvl_aemap, &call);
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- goto out_put_conn;
- }
- call->app_opcode = VLGETENTRYBYID;
-
- /* we want to get event notifications from the call */
- add_wait_queue(&call->waitq, &myself);
-
- /* marshall the parameters */
- param[0] = htonl(VLGETENTRYBYID);
- param[1] = htonl(volid);
- param[2] = htonl(voltype);
-
- piov[0].iov_len = sizeof(param);
- piov[0].iov_base = param;
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0)
- goto abort;
-
- /* wait for the reply to completely arrive */
- bp = rxrpc_call_alloc_scratch(call, 384);
-
- ret = rxrpc_call_read_data(call, bp, 384,
- RXRPC_CALL_READ_BLOCK |
- RXRPC_CALL_READ_ALL);
- if (ret < 0) {
- if (ret == -ECONNABORTED) {
- ret = call->app_errno;
- goto out_unwait;
- }
- goto abort;
- }
-
- /* unmarshall the reply */
- for (loop = 0; loop < 64; loop++)
- entry->name[loop] = ntohl(*bp++);
- bp++; /* final NUL */
+ return -EBADMSG;
- bp++; /* type */
- entry->nservers = ntohl(*bp++);
-
- for (loop = 0; loop < 8; loop++)
- entry->servers[loop].s_addr = *bp++;
-
- bp += 8; /* partition IDs */
+ _leave(" = 0 [done]");
+ return 0;
+}
- for (loop = 0; loop < 8; loop++) {
- tmp = ntohl(*bp++);
- if (tmp & AFS_VLSF_RWVOL)
- entry->srvtmask[loop] |= AFS_VOL_VTM_RW;
- if (tmp & AFS_VLSF_ROVOL)
- entry->srvtmask[loop] |= AFS_VOL_VTM_RO;
- if (tmp & AFS_VLSF_BACKVOL)
- entry->srvtmask[loop] |= AFS_VOL_VTM_BAK;
- }
-
- entry->vid[0] = ntohl(*bp++);
- entry->vid[1] = ntohl(*bp++);
- entry->vid[2] = ntohl(*bp++);
-
- bp++; /* clone ID */
-
- tmp = ntohl(*bp++); /* flags */
- if (tmp & AFS_VLF_RWEXISTS)
- entry->vidmask |= AFS_VOL_VTM_RW;
- if (tmp & AFS_VLF_ROEXISTS)
- entry->vidmask |= AFS_VOL_VTM_RO;
- if (tmp & AFS_VLF_BACKEXISTS)
- entry->vidmask |= AFS_VOL_VTM_BAK;
-
- ret = -ENOMEDIUM;
- if (!entry->vidmask)
- goto abort;
-
-#if 0 /* TODO: remove */
- entry->nservers = 3;
- entry->servers[0].s_addr = htonl(0xac101249);
- entry->servers[1].s_addr = htonl(0xac101243);
- entry->servers[2].s_addr = htonl(0xac10125b /*0xac10125b*/);
-
- entry->srvtmask[0] = AFS_VOL_VTM_RO;
- entry->srvtmask[1] = AFS_VOL_VTM_RO;
- entry->srvtmask[2] = AFS_VOL_VTM_RO | AFS_VOL_VTM_RW;
-#endif
-
- /* success */
- entry->rtime = get_seconds();
- ret = 0;
-
- out_unwait:
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&call->waitq, &myself);
- rxrpc_put_call(call);
- out_put_conn:
- rxrpc_put_connection(conn);
- out:
- _leave(" = %d", ret);
- return ret;
-
- abort:
- set_current_state(TASK_UNINTERRUPTIBLE);
- rxrpc_call_abort(call, ret);
- schedule();
- goto out_unwait;
-} /* end afs_rxvl_get_entry_by_id() */
-
-/*****************************************************************************/
/*
- * look up a volume location database entry by ID asynchronously
+ * VL.GetEntryByName operation type
*/
-int afs_rxvl_get_entry_by_id_async(struct afs_async_op *op,
- afs_volid_t volid,
- afs_voltype_t voltype)
-{
- struct rxrpc_connection *conn;
- struct rxrpc_call *call;
- struct kvec piov[1];
- size_t sent;
- int ret;
- __be32 param[3];
-
- _enter(",%x,%d,", volid, voltype);
-
- /* get hold of the vlserver connection */
- ret = afs_server_get_vlconn(op->server, &conn);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- /* create a call through that connection */
- ret = rxrpc_create_call(conn,
- afs_rxvl_get_entry_by_id_attn,
- afs_rxvl_get_entry_by_id_error,
- afs_rxvl_aemap,
- &op->call);
- rxrpc_put_connection(conn);
-
- if (ret < 0) {
- printk("kAFS: Unable to create call: %d\n", ret);
- _leave(" = %d", ret);
- return ret;
- }
+static const struct afs_call_type afs_RXVLGetEntryByName = {
+ .name = "VL.GetEntryByName",
+ .deliver = afs_deliver_vl_get_entry_by_xxx,
+ .abort_to_error = afs_vl_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
- op->call->app_opcode = VLGETENTRYBYID;
- op->call->app_user = op;
-
- call = op->call;
- rxrpc_get_call(call);
-
- /* send event notifications from the call to kafsasyncd */
- afs_kafsasyncd_begin_op(op);
-
- /* marshall the parameters */
- param[0] = htonl(VLGETENTRYBYID);
- param[1] = htonl(volid);
- param[2] = htonl(voltype);
-
- piov[0].iov_len = sizeof(param);
- piov[0].iov_base = param;
-
- /* allocate result read buffer in scratch space */
- call->app_scr_ptr = rxrpc_call_alloc_scratch(op->call, 384);
-
- /* send the parameters to the server */
- ret = rxrpc_call_write_data(call, 1, piov, RXRPC_LAST_PACKET, GFP_NOFS,
- 0, &sent);
- if (ret < 0) {
- rxrpc_call_abort(call, ret); /* handle from kafsasyncd */
- ret = 0;
- goto out;
- }
-
- /* wait for the reply to completely arrive */
- ret = rxrpc_call_read_data(call, call->app_scr_ptr, 384, 0);
- switch (ret) {
- case 0:
- case -EAGAIN:
- case -ECONNABORTED:
- ret = 0;
- break; /* all handled by kafsasyncd */
-
- default:
- rxrpc_call_abort(call, ret); /* make kafsasyncd handle it */
- ret = 0;
- break;
- }
-
- out:
- rxrpc_put_call(call);
- _leave(" = %d", ret);
- return ret;
-
-} /* end afs_rxvl_get_entry_by_id_async() */
+/*
+ * VL.GetEntryById operation type
+ */
+static const struct afs_call_type afs_RXVLGetEntryById = {
+ .name = "VL.GetEntryById",
+ .deliver = afs_deliver_vl_get_entry_by_xxx,
+ .abort_to_error = afs_vl_abort_to_error,
+ .destructor = afs_flat_call_destructor,
+};
-/*****************************************************************************/
/*
- * attend to the asynchronous get VLDB entry by ID
+ * dispatch a get volume entry by name operation
*/
-int afs_rxvl_get_entry_by_id_async2(struct afs_async_op *op,
- struct afs_cache_vlocation *entry)
+int afs_vl_get_entry_by_name(struct in_addr *addr,
+ struct key *key,
+ const char *volname,
+ struct afs_cache_vlocation *entry,
+ const struct afs_wait_mode *wait_mode)
{
+ struct afs_call *call;
+ size_t volnamesz, reqsz, padsz;
__be32 *bp;
- __u32 tmp;
- int loop, ret;
-
- _enter("{op=%p cst=%u}", op, op->call->app_call_state);
-
- memset(entry, 0, sizeof(*entry));
-
- if (op->call->app_call_state == RXRPC_CSTATE_COMPLETE) {
- /* operation finished */
- afs_kafsasyncd_terminate_op(op);
-
- bp = op->call->app_scr_ptr;
-
- /* unmarshall the reply */
- for (loop = 0; loop < 64; loop++)
- entry->name[loop] = ntohl(*bp++);
- bp++; /* final NUL */
-
- bp++; /* type */
- entry->nservers = ntohl(*bp++);
-
- for (loop = 0; loop < 8; loop++)
- entry->servers[loop].s_addr = *bp++;
-
- bp += 8; /* partition IDs */
-
- for (loop = 0; loop < 8; loop++) {
- tmp = ntohl(*bp++);
- if (tmp & AFS_VLSF_RWVOL)
- entry->srvtmask[loop] |= AFS_VOL_VTM_RW;
- if (tmp & AFS_VLSF_ROVOL)
- entry->srvtmask[loop] |= AFS_VOL_VTM_RO;
- if (tmp & AFS_VLSF_BACKVOL)
- entry->srvtmask[loop] |= AFS_VOL_VTM_BAK;
- }
-
- entry->vid[0] = ntohl(*bp++);
- entry->vid[1] = ntohl(*bp++);
- entry->vid[2] = ntohl(*bp++);
-
- bp++; /* clone ID */
-
- tmp = ntohl(*bp++); /* flags */
- if (tmp & AFS_VLF_RWEXISTS)
- entry->vidmask |= AFS_VOL_VTM_RW;
- if (tmp & AFS_VLF_ROEXISTS)
- entry->vidmask |= AFS_VOL_VTM_RO;
- if (tmp & AFS_VLF_BACKEXISTS)
- entry->vidmask |= AFS_VOL_VTM_BAK;
-
- ret = -ENOMEDIUM;
- if (!entry->vidmask) {
- rxrpc_call_abort(op->call, ret);
- goto done;
- }
-
-#if 0 /* TODO: remove */
- entry->nservers = 3;
- entry->servers[0].s_addr = htonl(0xac101249);
- entry->servers[1].s_addr = htonl(0xac101243);
- entry->servers[2].s_addr = htonl(0xac10125b /*0xac10125b*/);
-
- entry->srvtmask[0] = AFS_VOL_VTM_RO;
- entry->srvtmask[1] = AFS_VOL_VTM_RO;
- entry->srvtmask[2] = AFS_VOL_VTM_RO | AFS_VOL_VTM_RW;
-#endif
-
- /* success */
- entry->rtime = get_seconds();
- ret = 0;
- goto done;
- }
- if (op->call->app_call_state == RXRPC_CSTATE_ERROR) {
- /* operation error */
- ret = op->call->app_errno;
- goto done;
- }
+ _enter("");
- _leave(" = -EAGAIN");
- return -EAGAIN;
+ volnamesz = strlen(volname);
+ padsz = (4 - (volnamesz & 3)) & 3;
+ reqsz = 8 + volnamesz + padsz;
- done:
- rxrpc_put_call(op->call);
- op->call = NULL;
- _leave(" = %d", ret);
- return ret;
-} /* end afs_rxvl_get_entry_by_id_async2() */
+ call = afs_alloc_flat_call(&afs_RXVLGetEntryByName, reqsz, 384);
+ if (!call)
+ return -ENOMEM;
-/*****************************************************************************/
-/*
- * handle attention events on an async get-entry-by-ID op
- * - called from krxiod
- */
-static void afs_rxvl_get_entry_by_id_attn(struct rxrpc_call *call)
-{
- struct afs_async_op *op = call->app_user;
-
- _enter("{op=%p cst=%u}", op, call->app_call_state);
-
- switch (call->app_call_state) {
- case RXRPC_CSTATE_COMPLETE:
- afs_kafsasyncd_attend_op(op);
- break;
- case RXRPC_CSTATE_CLNT_RCV_REPLY:
- if (call->app_async_read)
- break;
- case RXRPC_CSTATE_CLNT_GOT_REPLY:
- if (call->app_read_count == 0)
- break;
- printk("kAFS: Reply bigger than expected"
- " {cst=%u asyn=%d mark=%Zu rdy=%Zu pr=%u%s}",
- call->app_call_state,
- call->app_async_read,
- call->app_mark,
- call->app_ready_qty,
- call->pkt_rcv_count,
- call->app_last_rcv ? " last" : "");
-
- rxrpc_call_abort(call, -EBADMSG);
- break;
- default:
- BUG();
- }
+ call->key = key;
+ call->reply = entry;
+ call->service_id = VL_SERVICE;
+ call->port = htons(AFS_VL_PORT);
- _leave("");
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(VLGETENTRYBYNAME);
+ *bp++ = htonl(volnamesz);
+ memcpy(bp, volname, volnamesz);
+ if (padsz > 0)
+ memset((void *) bp + volnamesz, 0, padsz);
-} /* end afs_rxvl_get_entry_by_id_attn() */
+ /* initiate the call */
+ return afs_make_call(addr, call, GFP_KERNEL, wait_mode);
+}
-/*****************************************************************************/
/*
- * handle error events on an async get-entry-by-ID op
- * - called from krxiod
+ * dispatch a get volume entry by ID operation
*/
-static void afs_rxvl_get_entry_by_id_error(struct rxrpc_call *call)
+int afs_vl_get_entry_by_id(struct in_addr *addr,
+ struct key *key,
+ afs_volid_t volid,
+ afs_voltype_t voltype,
+ struct afs_cache_vlocation *entry,
+ const struct afs_wait_mode *wait_mode)
{
- struct afs_async_op *op = call->app_user;
+ struct afs_call *call;
+ __be32 *bp;
- _enter("{op=%p cst=%u}", op, call->app_call_state);
+ _enter("");
- afs_kafsasyncd_attend_op(op);
+ call = afs_alloc_flat_call(&afs_RXVLGetEntryById, 12, 384);
+ if (!call)
+ return -ENOMEM;
- _leave("");
+ call->key = key;
+ call->reply = entry;
+ call->service_id = VL_SERVICE;
+ call->port = htons(AFS_VL_PORT);
-} /* end afs_rxvl_get_entry_by_id_error() */
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(VLGETENTRYBYID);
+ *bp++ = htonl(volid);
+ *bp = htonl(voltype);
+
+ /* initiate the call */
+ return afs_make_call(addr, call, GFP_KERNEL, wait_mode);
+}
-/* vlocation.c: volume location management
+/* AFS volume location management
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include "volume.h"
-#include "cell.h"
-#include "cmservice.h"
-#include "fsclient.h"
-#include "vlclient.h"
-#include "kafstimod.h"
-#include <rxrpc/connection.h>
#include "internal.h"
-#define AFS_VLDB_TIMEOUT HZ*1000
+unsigned afs_vlocation_timeout = 10; /* volume location timeout in seconds */
+unsigned afs_vlocation_update_timeout = 10 * 60;
-static void afs_vlocation_update_timer(struct afs_timer *timer);
-static void afs_vlocation_update_attend(struct afs_async_op *op);
-static void afs_vlocation_update_discard(struct afs_async_op *op);
-static void __afs_put_vlocation(struct afs_vlocation *vlocation);
+static void afs_vlocation_reaper(struct work_struct *);
+static void afs_vlocation_updater(struct work_struct *);
-static void __afs_vlocation_timeout(struct afs_timer *timer)
-{
- struct afs_vlocation *vlocation =
- list_entry(timer, struct afs_vlocation, timeout);
-
- _debug("VL TIMEOUT [%s{u=%d}]",
- vlocation->vldb.name, atomic_read(&vlocation->usage));
-
- afs_vlocation_do_timeout(vlocation);
-}
-
-static const struct afs_timer_ops afs_vlocation_timer_ops = {
- .timed_out = __afs_vlocation_timeout,
-};
+static LIST_HEAD(afs_vlocation_updates);
+static LIST_HEAD(afs_vlocation_graveyard);
+static DEFINE_SPINLOCK(afs_vlocation_updates_lock);
+static DEFINE_SPINLOCK(afs_vlocation_graveyard_lock);
+static DECLARE_DELAYED_WORK(afs_vlocation_reap, afs_vlocation_reaper);
+static DECLARE_DELAYED_WORK(afs_vlocation_update, afs_vlocation_updater);
+static struct workqueue_struct *afs_vlocation_update_worker;
-static const struct afs_timer_ops afs_vlocation_update_timer_ops = {
- .timed_out = afs_vlocation_update_timer,
-};
-
-static const struct afs_async_op_ops afs_vlocation_update_op_ops = {
- .attend = afs_vlocation_update_attend,
- .discard = afs_vlocation_update_discard,
-};
-
-static LIST_HEAD(afs_vlocation_update_pendq); /* queue of VLs awaiting update */
-static struct afs_vlocation *afs_vlocation_update; /* VL currently being updated */
-static DEFINE_SPINLOCK(afs_vlocation_update_lock); /* lock guarding update queue */
-
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_vlocation_cache_match(void *target,
- const void *entry);
-static void afs_vlocation_cache_update(void *source, void *entry);
-
-struct cachefs_index_def afs_vlocation_cache_index_def = {
- .name = "vldb",
- .data_size = sizeof(struct afs_cache_vlocation),
- .keys[0] = { CACHEFS_INDEX_KEYS_ASCIIZ, 64 },
- .match = afs_vlocation_cache_match,
- .update = afs_vlocation_cache_update,
-};
-#endif
-
-/*****************************************************************************/
/*
* iterate through the VL servers in a cell until one of them admits knowing
* about the volume in question
- * - caller must have cell->vl_sem write-locked
*/
-static int afs_vlocation_access_vl_by_name(struct afs_vlocation *vlocation,
- const char *name,
- unsigned namesz,
+static int afs_vlocation_access_vl_by_name(struct afs_vlocation *vl,
+ struct key *key,
struct afs_cache_vlocation *vldb)
{
- struct afs_server *server = NULL;
- struct afs_cell *cell = vlocation->cell;
+ struct afs_cell *cell = vl->cell;
+ struct in_addr addr;
int count, ret;
- _enter("%s,%*.*s,%u", cell->name, namesz, namesz, name, namesz);
+ _enter("%s,%s", cell->name, vl->vldb.name);
+ down_write(&vl->cell->vl_sem);
ret = -ENOMEDIUM;
for (count = cell->vl_naddrs; count > 0; count--) {
- _debug("CellServ[%hu]: %08x",
- cell->vl_curr_svix,
- cell->vl_addrs[cell->vl_curr_svix].s_addr);
-
- /* try and create a server */
- ret = afs_server_lookup(cell,
- &cell->vl_addrs[cell->vl_curr_svix],
- &server);
- switch (ret) {
- case 0:
- break;
- case -ENOMEM:
- case -ENONET:
- goto out;
- default:
- goto rotate;
- }
+ addr = cell->vl_addrs[cell->vl_curr_svix];
+
+ _debug("CellServ[%hu]: %08x", cell->vl_curr_svix, addr.s_addr);
/* attempt to access the VL server */
- ret = afs_rxvl_get_entry_by_name(server, name, namesz, vldb);
+ ret = afs_vl_get_entry_by_name(&addr, key, vl->vldb.name, vldb,
+ &afs_sync_call);
switch (ret) {
case 0:
- afs_put_server(server);
goto out;
case -ENOMEM:
case -ENONET:
case -ENETUNREACH:
case -EHOSTUNREACH:
case -ECONNREFUSED:
- down_write(&server->sem);
- if (server->vlserver) {
- rxrpc_put_connection(server->vlserver);
- server->vlserver = NULL;
- }
- up_write(&server->sem);
- afs_put_server(server);
if (ret == -ENOMEM || ret == -ENONET)
goto out;
goto rotate;
case -ENOMEDIUM:
- afs_put_server(server);
goto out;
default:
- afs_put_server(server);
- ret = -ENOMEDIUM;
+ ret = -EIO;
goto rotate;
}
cell->vl_curr_svix %= cell->vl_naddrs;
}
- out:
+out:
+ up_write(&vl->cell->vl_sem);
_leave(" = %d", ret);
return ret;
+}
-} /* end afs_vlocation_access_vl_by_name() */
-
-/*****************************************************************************/
/*
* iterate through the VL servers in a cell until one of them admits knowing
* about the volume in question
- * - caller must have cell->vl_sem write-locked
*/
-static int afs_vlocation_access_vl_by_id(struct afs_vlocation *vlocation,
+static int afs_vlocation_access_vl_by_id(struct afs_vlocation *vl,
+ struct key *key,
afs_volid_t volid,
afs_voltype_t voltype,
struct afs_cache_vlocation *vldb)
{
- struct afs_server *server = NULL;
- struct afs_cell *cell = vlocation->cell;
+ struct afs_cell *cell = vl->cell;
+ struct in_addr addr;
int count, ret;
_enter("%s,%x,%d,", cell->name, volid, voltype);
+ down_write(&vl->cell->vl_sem);
ret = -ENOMEDIUM;
for (count = cell->vl_naddrs; count > 0; count--) {
- _debug("CellServ[%hu]: %08x",
- cell->vl_curr_svix,
- cell->vl_addrs[cell->vl_curr_svix].s_addr);
-
- /* try and create a server */
- ret = afs_server_lookup(cell,
- &cell->vl_addrs[cell->vl_curr_svix],
- &server);
- switch (ret) {
- case 0:
- break;
- case -ENOMEM:
- case -ENONET:
- goto out;
- default:
- goto rotate;
- }
+ addr = cell->vl_addrs[cell->vl_curr_svix];
+
+ _debug("CellServ[%hu]: %08x", cell->vl_curr_svix, addr.s_addr);
/* attempt to access the VL server */
- ret = afs_rxvl_get_entry_by_id(server, volid, voltype, vldb);
+ ret = afs_vl_get_entry_by_id(&addr, key, volid, voltype, vldb,
+ &afs_sync_call);
switch (ret) {
case 0:
- afs_put_server(server);
goto out;
case -ENOMEM:
case -ENONET:
case -ENETUNREACH:
case -EHOSTUNREACH:
case -ECONNREFUSED:
- down_write(&server->sem);
- if (server->vlserver) {
- rxrpc_put_connection(server->vlserver);
- server->vlserver = NULL;
- }
- up_write(&server->sem);
- afs_put_server(server);
if (ret == -ENOMEM || ret == -ENONET)
goto out;
goto rotate;
+ case -EBUSY:
+ vl->upd_busy_cnt++;
+ if (vl->upd_busy_cnt <= 3) {
+ if (vl->upd_busy_cnt > 1) {
+ /* second+ BUSY - sleep a little bit */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ __set_current_state(TASK_RUNNING);
+ }
+ continue;
+ }
+ break;
case -ENOMEDIUM:
- afs_put_server(server);
- goto out;
+ vl->upd_rej_cnt++;
+ goto rotate;
default:
- afs_put_server(server);
- ret = -ENOMEDIUM;
+ ret = -EIO;
goto rotate;
}
rotate:
cell->vl_curr_svix++;
cell->vl_curr_svix %= cell->vl_naddrs;
+ vl->upd_busy_cnt = 0;
}
- out:
+out:
+ if (ret < 0 && vl->upd_rej_cnt > 0) {
+ printk(KERN_NOTICE "kAFS:"
+ " Active volume no longer valid '%s'\n",
+ vl->vldb.name);
+ vl->valid = 0;
+ ret = -ENOMEDIUM;
+ }
+
+ up_write(&vl->cell->vl_sem);
_leave(" = %d", ret);
return ret;
+}
-} /* end afs_vlocation_access_vl_by_id() */
-
-/*****************************************************************************/
/*
- * lookup volume location
- * - caller must have cell->vol_sem write-locked
- * - iterate through the VL servers in a cell until one of them admits knowing
- * about the volume in question
- * - lookup in the local cache if not able to find on the VL server
- * - insert/update in the local cache if did get a VL response
+ * allocate a volume location record
*/
-int afs_vlocation_lookup(struct afs_cell *cell,
- const char *name,
- unsigned namesz,
- struct afs_vlocation **_vlocation)
+static struct afs_vlocation *afs_vlocation_alloc(struct afs_cell *cell,
+ const char *name,
+ size_t namesz)
{
- struct afs_cache_vlocation vldb;
- struct afs_vlocation *vlocation;
- afs_voltype_t voltype;
- afs_volid_t vid;
- int active = 0, ret;
-
- _enter("{%s},%*.*s,%u,", cell->name, namesz, namesz, name, namesz);
-
- if (namesz > sizeof(vlocation->vldb.name)) {
- _leave(" = -ENAMETOOLONG");
- return -ENAMETOOLONG;
- }
-
- /* search the cell's active list first */
- list_for_each_entry(vlocation, &cell->vl_list, link) {
- if (namesz < sizeof(vlocation->vldb.name) &&
- vlocation->vldb.name[namesz] != '\0')
- continue;
-
- if (memcmp(vlocation->vldb.name, name, namesz) == 0)
- goto found_in_memory;
- }
-
- /* search the cell's graveyard list second */
- spin_lock(&cell->vl_gylock);
- list_for_each_entry(vlocation, &cell->vl_graveyard, link) {
- if (namesz < sizeof(vlocation->vldb.name) &&
- vlocation->vldb.name[namesz] != '\0')
- continue;
-
- if (memcmp(vlocation->vldb.name, name, namesz) == 0)
- goto found_in_graveyard;
- }
- spin_unlock(&cell->vl_gylock);
-
- /* not in the cell's in-memory lists - create a new record */
- vlocation = kzalloc(sizeof(struct afs_vlocation), GFP_KERNEL);
- if (!vlocation)
- return -ENOMEM;
-
- atomic_set(&vlocation->usage, 1);
- INIT_LIST_HEAD(&vlocation->link);
- rwlock_init(&vlocation->lock);
- memcpy(vlocation->vldb.name, name, namesz);
-
- afs_timer_init(&vlocation->timeout, &afs_vlocation_timer_ops);
- afs_timer_init(&vlocation->upd_timer, &afs_vlocation_update_timer_ops);
- afs_async_op_init(&vlocation->upd_op, &afs_vlocation_update_op_ops);
-
- afs_get_cell(cell);
- vlocation->cell = cell;
-
- list_add_tail(&vlocation->link, &cell->vl_list);
-
-#ifdef AFS_CACHING_SUPPORT
- /* we want to store it in the cache, plus it might already be
- * encached */
- cachefs_acquire_cookie(cell->cache,
- &afs_volume_cache_index_def,
- vlocation,
- &vlocation->cache);
-
- if (vlocation->valid)
- goto found_in_cache;
-#endif
-
- /* try to look up an unknown volume in the cell VL databases by name */
- ret = afs_vlocation_access_vl_by_name(vlocation, name, namesz, &vldb);
- if (ret < 0) {
- printk("kAFS: failed to locate '%*.*s' in cell '%s'\n",
- namesz, namesz, name, cell->name);
- goto error;
+ struct afs_vlocation *vl;
+
+ vl = kzalloc(sizeof(struct afs_vlocation), GFP_KERNEL);
+ if (vl) {
+ vl->cell = cell;
+ vl->state = AFS_VL_NEW;
+ atomic_set(&vl->usage, 1);
+ INIT_LIST_HEAD(&vl->link);
+ INIT_LIST_HEAD(&vl->grave);
+ INIT_LIST_HEAD(&vl->update);
+ init_waitqueue_head(&vl->waitq);
+ spin_lock_init(&vl->lock);
+ memcpy(vl->vldb.name, name, namesz);
}
- goto found_on_vlserver;
-
- found_in_graveyard:
- /* found in the graveyard - resurrect */
- _debug("found in graveyard");
- atomic_inc(&vlocation->usage);
- list_move_tail(&vlocation->link, &cell->vl_list);
- spin_unlock(&cell->vl_gylock);
-
- afs_kafstimod_del_timer(&vlocation->timeout);
- goto active;
-
- found_in_memory:
- /* found in memory - check to see if it's active */
- _debug("found in memory");
- atomic_inc(&vlocation->usage);
+ _leave(" = %p", vl);
+ return vl;
+}
- active:
- active = 1;
+/*
+ * update record if we found it in the cache
+ */
+static int afs_vlocation_update_record(struct afs_vlocation *vl,
+ struct key *key,
+ struct afs_cache_vlocation *vldb)
+{
+ afs_voltype_t voltype;
+ afs_volid_t vid;
+ int ret;
-#ifdef AFS_CACHING_SUPPORT
- found_in_cache:
-#endif
/* try to look up a cached volume in the cell VL databases by ID */
- _debug("found in cache");
-
_debug("Locally Cached: %s %02x { %08x(%x) %08x(%x) %08x(%x) }",
- vlocation->vldb.name,
- vlocation->vldb.vidmask,
- ntohl(vlocation->vldb.servers[0].s_addr),
- vlocation->vldb.srvtmask[0],
- ntohl(vlocation->vldb.servers[1].s_addr),
- vlocation->vldb.srvtmask[1],
- ntohl(vlocation->vldb.servers[2].s_addr),
- vlocation->vldb.srvtmask[2]
- );
+ vl->vldb.name,
+ vl->vldb.vidmask,
+ ntohl(vl->vldb.servers[0].s_addr),
+ vl->vldb.srvtmask[0],
+ ntohl(vl->vldb.servers[1].s_addr),
+ vl->vldb.srvtmask[1],
+ ntohl(vl->vldb.servers[2].s_addr),
+ vl->vldb.srvtmask[2]);
_debug("Vids: %08x %08x %08x",
- vlocation->vldb.vid[0],
- vlocation->vldb.vid[1],
- vlocation->vldb.vid[2]);
+ vl->vldb.vid[0],
+ vl->vldb.vid[1],
+ vl->vldb.vid[2]);
- if (vlocation->vldb.vidmask & AFS_VOL_VTM_RW) {
- vid = vlocation->vldb.vid[0];
+ if (vl->vldb.vidmask & AFS_VOL_VTM_RW) {
+ vid = vl->vldb.vid[0];
voltype = AFSVL_RWVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_RO) {
- vid = vlocation->vldb.vid[1];
+ } else if (vl->vldb.vidmask & AFS_VOL_VTM_RO) {
+ vid = vl->vldb.vid[1];
voltype = AFSVL_ROVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_BAK) {
- vid = vlocation->vldb.vid[2];
+ } else if (vl->vldb.vidmask & AFS_VOL_VTM_BAK) {
+ vid = vl->vldb.vid[2];
voltype = AFSVL_BACKVOL;
- }
- else {
+ } else {
BUG();
vid = 0;
voltype = 0;
}
- ret = afs_vlocation_access_vl_by_id(vlocation, vid, voltype, &vldb);
+ /* contact the server to make sure the volume is still available
+ * - TODO: need to handle disconnected operation here
+ */
+ ret = afs_vlocation_access_vl_by_id(vl, key, vid, voltype, vldb);
switch (ret) {
/* net error */
default:
- printk("kAFS: failed to volume '%*.*s' (%x) up in '%s': %d\n",
- namesz, namesz, name, vid, cell->name, ret);
- goto error;
+ printk(KERN_WARNING "kAFS:"
+ " failed to update volume '%s' (%x) up in '%s': %d\n",
+ vl->vldb.name, vid, vl->cell->name, ret);
+ _leave(" = %d", ret);
+ return ret;
/* pulled from local cache into memory */
case 0:
- goto found_on_vlserver;
+ _leave(" = 0");
+ return 0;
/* uh oh... looks like the volume got deleted */
case -ENOMEDIUM:
- printk("kAFS: volume '%*.*s' (%x) does not exist '%s'\n",
- namesz, namesz, name, vid, cell->name);
+ printk(KERN_ERR "kAFS:"
+ " volume '%s' (%x) does not exist '%s'\n",
+ vl->vldb.name, vid, vl->cell->name);
/* TODO: make existing record unavailable */
- goto error;
+ _leave(" = %d", ret);
+ return ret;
}
+}
- found_on_vlserver:
- _debug("Done VL Lookup: %*.*s %02x { %08x(%x) %08x(%x) %08x(%x) }",
- namesz, namesz, name,
- vldb.vidmask,
- ntohl(vldb.servers[0].s_addr), vldb.srvtmask[0],
- ntohl(vldb.servers[1].s_addr), vldb.srvtmask[1],
- ntohl(vldb.servers[2].s_addr), vldb.srvtmask[2]
- );
-
- _debug("Vids: %08x %08x %08x", vldb.vid[0], vldb.vid[1], vldb.vid[2]);
+/*
+ * apply the update to a VL record
+ */
+static void afs_vlocation_apply_update(struct afs_vlocation *vl,
+ struct afs_cache_vlocation *vldb)
+{
+ _debug("Done VL Lookup: %s %02x { %08x(%x) %08x(%x) %08x(%x) }",
+ vldb->name, vldb->vidmask,
+ ntohl(vldb->servers[0].s_addr), vldb->srvtmask[0],
+ ntohl(vldb->servers[1].s_addr), vldb->srvtmask[1],
+ ntohl(vldb->servers[2].s_addr), vldb->srvtmask[2]);
- if ((namesz < sizeof(vlocation->vldb.name) &&
- vlocation->vldb.name[namesz] != '\0') ||
- memcmp(vldb.name, name, namesz) != 0)
- printk("kAFS: name of volume '%*.*s' changed to '%s' on server\n",
- namesz, namesz, name, vldb.name);
+ _debug("Vids: %08x %08x %08x",
+ vldb->vid[0], vldb->vid[1], vldb->vid[2]);
- memcpy(&vlocation->vldb, &vldb, sizeof(vlocation->vldb));
+ if (strcmp(vldb->name, vl->vldb.name) != 0)
+ printk(KERN_NOTICE "kAFS:"
+ " name of volume '%s' changed to '%s' on server\n",
+ vl->vldb.name, vldb->name);
- afs_kafstimod_add_timer(&vlocation->upd_timer, 10 * HZ);
+ vl->vldb = *vldb;
#ifdef AFS_CACHING_SUPPORT
/* update volume entry in local cache */
- cachefs_update_cookie(vlocation->cache);
-#endif
-
- *_vlocation = vlocation;
- _leave(" = 0 (%p)",vlocation);
- return 0;
-
- error:
- if (vlocation) {
- if (active) {
- __afs_put_vlocation(vlocation);
- }
- else {
- list_del(&vlocation->link);
-#ifdef AFS_CACHING_SUPPORT
- cachefs_relinquish_cookie(vlocation->cache, 0);
+ cachefs_update_cookie(vl->cache);
#endif
- afs_put_cell(vlocation->cell);
- kfree(vlocation);
- }
- }
-
- _leave(" = %d", ret);
- return ret;
-} /* end afs_vlocation_lookup() */
+}
-/*****************************************************************************/
/*
- * finish using a volume location record
- * - caller must have cell->vol_sem write-locked
+ * fill in a volume location record, consulting the cache and the VL server
+ * both
*/
-static void __afs_put_vlocation(struct afs_vlocation *vlocation)
+static int afs_vlocation_fill_in_record(struct afs_vlocation *vl,
+ struct key *key)
{
- struct afs_cell *cell;
+ struct afs_cache_vlocation vldb;
+ int ret;
- if (!vlocation)
- return;
+ _enter("");
- _enter("%s", vlocation->vldb.name);
+ ASSERTCMP(vl->valid, ==, 0);
- cell = vlocation->cell;
+ memset(&vldb, 0, sizeof(vldb));
- /* sanity check */
- BUG_ON(atomic_read(&vlocation->usage) <= 0);
+ /* see if we have an in-cache copy (will set vl->valid if there is) */
+#ifdef AFS_CACHING_SUPPORT
+ cachefs_acquire_cookie(cell->cache,
+ &afs_volume_cache_index_def,
+ vlocation,
+ &vl->cache);
+#endif
- spin_lock(&cell->vl_gylock);
- if (likely(!atomic_dec_and_test(&vlocation->usage))) {
- spin_unlock(&cell->vl_gylock);
- _leave("");
- return;
+ if (vl->valid) {
+ /* try to update a known volume in the cell VL databases by
+ * ID as the name may have changed */
+ _debug("found in cache");
+ ret = afs_vlocation_update_record(vl, key, &vldb);
+ } else {
+ /* try to look up an unknown volume in the cell VL databases by
+ * name */
+ ret = afs_vlocation_access_vl_by_name(vl, key, &vldb);
+ if (ret < 0) {
+ printk("kAFS: failed to locate '%s' in cell '%s'\n",
+ vl->vldb.name, vl->cell->name);
+ return ret;
+ }
}
- /* move to graveyard queue */
- list_move_tail(&vlocation->link,&cell->vl_graveyard);
-
- /* remove from pending timeout queue (refcounted if actually being
- * updated) */
- list_del_init(&vlocation->upd_op.link);
-
- /* time out in 10 secs */
- afs_kafstimod_del_timer(&vlocation->upd_timer);
- afs_kafstimod_add_timer(&vlocation->timeout, 10 * HZ);
-
- spin_unlock(&cell->vl_gylock);
-
- _leave(" [killed]");
-} /* end __afs_put_vlocation() */
-
-/*****************************************************************************/
-/*
- * finish using a volume location record
- */
-void afs_put_vlocation(struct afs_vlocation *vlocation)
-{
- if (vlocation) {
- struct afs_cell *cell = vlocation->cell;
-
- down_write(&cell->vl_sem);
- __afs_put_vlocation(vlocation);
- up_write(&cell->vl_sem);
- }
-} /* end afs_put_vlocation() */
+ afs_vlocation_apply_update(vl, &vldb);
+ _leave(" = 0");
+ return 0;
+}
-/*****************************************************************************/
/*
- * timeout vlocation record
- * - removes from the cell's graveyard if the usage count is zero
+ * queue a vlocation record for updates
*/
-void afs_vlocation_do_timeout(struct afs_vlocation *vlocation)
+void afs_vlocation_queue_for_updates(struct afs_vlocation *vl)
{
- struct afs_cell *cell;
+ struct afs_vlocation *xvl;
- _enter("%s", vlocation->vldb.name);
+ /* wait at least 10 minutes before updating... */
+ vl->update_at = get_seconds() + afs_vlocation_update_timeout;
- cell = vlocation->cell;
+ spin_lock(&afs_vlocation_updates_lock);
- BUG_ON(atomic_read(&vlocation->usage) < 0);
-
- /* remove from graveyard if still dead */
- spin_lock(&cell->vl_gylock);
- if (atomic_read(&vlocation->usage) == 0)
- list_del_init(&vlocation->link);
- else
- vlocation = NULL;
- spin_unlock(&cell->vl_gylock);
-
- if (!vlocation) {
- _leave("");
- return; /* resurrected */
+ if (!list_empty(&afs_vlocation_updates)) {
+ /* ... but wait at least 1 second more than the newest record
+ * already queued so that we don't spam the VL server suddenly
+ * with lots of requests
+ */
+ xvl = list_entry(afs_vlocation_updates.prev,
+ struct afs_vlocation, update);
+ if (vl->update_at <= xvl->update_at)
+ vl->update_at = xvl->update_at + 1;
+ } else {
+ queue_delayed_work(afs_vlocation_update_worker,
+ &afs_vlocation_update,
+ afs_vlocation_update_timeout * HZ);
}
- /* we can now destroy it properly */
-#ifdef AFS_CACHING_SUPPORT
- cachefs_relinquish_cookie(vlocation->cache, 0);
-#endif
- afs_put_cell(cell);
-
- kfree(vlocation);
-
- _leave(" [destroyed]");
-} /* end afs_vlocation_do_timeout() */
+ list_add_tail(&vl->update, &afs_vlocation_updates);
+ spin_unlock(&afs_vlocation_updates_lock);
+}
-/*****************************************************************************/
/*
- * send an update operation to the currently selected server
+ * lookup volume location
+ * - iterate through the VL servers in a cell until one of them admits knowing
+ * about the volume in question
+ * - lookup in the local cache if not able to find on the VL server
+ * - insert/update in the local cache if did get a VL response
*/
-static int afs_vlocation_update_begin(struct afs_vlocation *vlocation)
+struct afs_vlocation *afs_vlocation_lookup(struct afs_cell *cell,
+ struct key *key,
+ const char *name,
+ size_t namesz)
{
- afs_voltype_t voltype;
- afs_volid_t vid;
+ struct afs_vlocation *vl;
int ret;
- _enter("%s{ufs=%u ucs=%u}",
- vlocation->vldb.name,
- vlocation->upd_first_svix,
- vlocation->upd_curr_svix);
+ _enter("{%s},{%x},%*.*s,%zu",
+ cell->name, key_serial(key),
+ (int) namesz, (int) namesz, name, namesz);
- /* try to look up a cached volume in the cell VL databases by ID */
- if (vlocation->vldb.vidmask & AFS_VOL_VTM_RW) {
- vid = vlocation->vldb.vid[0];
- voltype = AFSVL_RWVOL;
- }
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_RO) {
- vid = vlocation->vldb.vid[1];
- voltype = AFSVL_ROVOL;
+ if (namesz > sizeof(vl->vldb.name)) {
+ _leave(" = -ENAMETOOLONG");
+ return ERR_PTR(-ENAMETOOLONG);
}
- else if (vlocation->vldb.vidmask & AFS_VOL_VTM_BAK) {
- vid = vlocation->vldb.vid[2];
- voltype = AFSVL_BACKVOL;
+
+ /* see if we have an in-memory copy first */
+ down_write(&cell->vl_sem);
+ spin_lock(&cell->vl_lock);
+ list_for_each_entry(vl, &cell->vl_list, link) {
+ if (vl->vldb.name[namesz] != '\0')
+ continue;
+ if (memcmp(vl->vldb.name, name, namesz) == 0)
+ goto found_in_memory;
}
- else {
- BUG();
- vid = 0;
- voltype = 0;
+ spin_unlock(&cell->vl_lock);
+
+ /* not in the cell's in-memory lists - create a new record */
+ vl = afs_vlocation_alloc(cell, name, namesz);
+ if (!vl) {
+ up_write(&cell->vl_sem);
+ return ERR_PTR(-ENOMEM);
}
- /* contact the chosen server */
- ret = afs_server_lookup(
- vlocation->cell,
- &vlocation->cell->vl_addrs[vlocation->upd_curr_svix],
- &vlocation->upd_op.server);
+ afs_get_cell(cell);
- switch (ret) {
- case 0:
- break;
- case -ENOMEM:
- case -ENONET:
- default:
- _leave(" = %d", ret);
- return ret;
- }
+ list_add_tail(&vl->link, &cell->vl_list);
+ vl->state = AFS_VL_CREATING;
+ up_write(&cell->vl_sem);
- /* initiate the update operation */
- ret = afs_rxvl_get_entry_by_id_async(&vlocation->upd_op, vid, voltype);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
+fill_in_record:
+ ret = afs_vlocation_fill_in_record(vl, key);
+ if (ret < 0)
+ goto error_abandon;
+ spin_lock(&vl->lock);
+ vl->state = AFS_VL_VALID;
+ wake_up(&vl->waitq);
+ spin_unlock(&vl->lock);
+
+ /* schedule for regular updates */
+ afs_vlocation_queue_for_updates(vl);
+ goto success;
+
+found_in_memory:
+ /* found in memory */
+ _debug("found in memory");
+ atomic_inc(&vl->usage);
+ spin_unlock(&cell->vl_lock);
+ if (!list_empty(&vl->grave)) {
+ spin_lock(&afs_vlocation_graveyard_lock);
+ list_del_init(&vl->grave);
+ spin_unlock(&afs_vlocation_graveyard_lock);
}
+ up_write(&cell->vl_sem);
+
+ /* see if it was an abandoned record that we might try filling in */
+ spin_lock(&vl->lock);
+ while (vl->state != AFS_VL_VALID) {
+ afs_vlocation_state_t state = vl->state;
+
+ _debug("invalid [state %d]", state);
+
+ if ((state == AFS_VL_NEW || state == AFS_VL_NO_VOLUME)) {
+ vl->state = AFS_VL_CREATING;
+ spin_unlock(&vl->lock);
+ goto fill_in_record;
+ }
+
+ /* must now wait for creation or update by someone else to
+ * complete */
+ _debug("wait");
+ spin_unlock(&vl->lock);
+ ret = wait_event_interruptible(
+ vl->waitq,
+ vl->state == AFS_VL_NEW ||
+ vl->state == AFS_VL_VALID ||
+ vl->state == AFS_VL_NO_VOLUME);
+ if (ret < 0)
+ goto error;
+ spin_lock(&vl->lock);
+ }
+ spin_unlock(&vl->lock);
+
+success:
+ _leave(" = %p",vl);
+ return vl;
+
+error_abandon:
+ spin_lock(&vl->lock);
+ vl->state = AFS_VL_NEW;
+ wake_up(&vl->waitq);
+ spin_unlock(&vl->lock);
+error:
+ ASSERT(vl != NULL);
+ afs_put_vlocation(vl);
_leave(" = %d", ret);
- return ret;
-} /* end afs_vlocation_update_begin() */
+ return ERR_PTR(ret);
+}
-/*****************************************************************************/
/*
- * abandon updating a VL record
- * - does not restart the update timer
+ * finish using a volume location record
*/
-static void afs_vlocation_update_abandon(struct afs_vlocation *vlocation,
- afs_vlocation_upd_t state,
- int ret)
+void afs_put_vlocation(struct afs_vlocation *vl)
{
- _enter("%s,%u", vlocation->vldb.name, state);
-
- if (ret < 0)
- printk("kAFS: Abandoning VL update '%s': %d\n",
- vlocation->vldb.name, ret);
-
- /* discard the server record */
- afs_put_server(vlocation->upd_op.server);
- vlocation->upd_op.server = NULL;
+ if (!vl)
+ return;
- spin_lock(&afs_vlocation_update_lock);
- afs_vlocation_update = NULL;
- vlocation->upd_state = state;
+ _enter("%s", vl->vldb.name);
- /* TODO: start updating next VL record on pending list */
+ ASSERTCMP(atomic_read(&vl->usage), >, 0);
- spin_unlock(&afs_vlocation_update_lock);
+ if (likely(!atomic_dec_and_test(&vl->usage))) {
+ _leave("");
+ return;
+ }
- _leave("");
-} /* end afs_vlocation_update_abandon() */
+ spin_lock(&afs_vlocation_graveyard_lock);
+ if (atomic_read(&vl->usage) == 0) {
+ _debug("buried");
+ list_move_tail(&vl->grave, &afs_vlocation_graveyard);
+ vl->time_of_death = get_seconds();
+ schedule_delayed_work(&afs_vlocation_reap,
+ afs_vlocation_timeout * HZ);
+
+ /* suspend updates on this record */
+ if (!list_empty(&vl->update)) {
+ spin_lock(&afs_vlocation_updates_lock);
+ list_del_init(&vl->update);
+ spin_unlock(&afs_vlocation_updates_lock);
+ }
+ }
+ spin_unlock(&afs_vlocation_graveyard_lock);
+ _leave(" [killed?]");
+}
-/*****************************************************************************/
/*
- * handle periodic update timeouts and busy retry timeouts
- * - called from kafstimod
+ * destroy a dead volume location record
*/
-static void afs_vlocation_update_timer(struct afs_timer *timer)
+static void afs_vlocation_destroy(struct afs_vlocation *vl)
{
- struct afs_vlocation *vlocation =
- list_entry(timer, struct afs_vlocation, upd_timer);
- int ret;
+ _enter("%p", vl);
- _enter("%s", vlocation->vldb.name);
+#ifdef AFS_CACHING_SUPPORT
+ cachefs_relinquish_cookie(vl->cache, 0);
+#endif
- /* only update if not in the graveyard (defend against putting too) */
- spin_lock(&vlocation->cell->vl_gylock);
+ afs_put_cell(vl->cell);
+ kfree(vl);
+}
- if (!atomic_read(&vlocation->usage))
- goto out_unlock1;
+/*
+ * reap dead volume location records
+ */
+static void afs_vlocation_reaper(struct work_struct *work)
+{
+ LIST_HEAD(corpses);
+ struct afs_vlocation *vl;
+ unsigned long delay, expiry;
+ time_t now;
- spin_lock(&afs_vlocation_update_lock);
+ _enter("");
- /* if we were woken up due to EBUSY sleep then restart immediately if
- * possible or else jump to front of pending queue */
- if (vlocation->upd_state == AFS_VLUPD_BUSYSLEEP) {
- if (afs_vlocation_update) {
- list_add(&vlocation->upd_op.link,
- &afs_vlocation_update_pendq);
+ now = get_seconds();
+ spin_lock(&afs_vlocation_graveyard_lock);
+
+ while (!list_empty(&afs_vlocation_graveyard)) {
+ vl = list_entry(afs_vlocation_graveyard.next,
+ struct afs_vlocation, grave);
+
+ _debug("check %p", vl);
+
+ /* the queue is ordered most dead first */
+ expiry = vl->time_of_death + afs_vlocation_timeout;
+ if (expiry > now) {
+ delay = (expiry - now) * HZ;
+ _debug("delay %lu", delay);
+ if (!schedule_delayed_work(&afs_vlocation_reap,
+ delay)) {
+ cancel_delayed_work(&afs_vlocation_reap);
+ schedule_delayed_work(&afs_vlocation_reap,
+ delay);
+ }
+ break;
}
- else {
- afs_get_vlocation(vlocation);
- afs_vlocation_update = vlocation;
- vlocation->upd_state = AFS_VLUPD_INPROGRESS;
+
+ spin_lock(&vl->cell->vl_lock);
+ if (atomic_read(&vl->usage) > 0) {
+ _debug("no reap");
+ list_del_init(&vl->grave);
+ } else {
+ _debug("reap");
+ list_move_tail(&vl->grave, &corpses);
+ list_del_init(&vl->link);
}
- goto out_unlock2;
+ spin_unlock(&vl->cell->vl_lock);
}
- /* put on pending queue if there's already another update in progress */
- if (afs_vlocation_update) {
- vlocation->upd_state = AFS_VLUPD_PENDING;
- list_add_tail(&vlocation->upd_op.link,
- &afs_vlocation_update_pendq);
- goto out_unlock2;
- }
+ spin_unlock(&afs_vlocation_graveyard_lock);
- /* hold a ref on it while actually updating */
- afs_get_vlocation(vlocation);
- afs_vlocation_update = vlocation;
- vlocation->upd_state = AFS_VLUPD_INPROGRESS;
-
- spin_unlock(&afs_vlocation_update_lock);
- spin_unlock(&vlocation->cell->vl_gylock);
-
- /* okay... we can start the update */
- _debug("BEGIN VL UPDATE [%s]", vlocation->vldb.name);
- vlocation->upd_first_svix = vlocation->cell->vl_curr_svix;
- vlocation->upd_curr_svix = vlocation->upd_first_svix;
- vlocation->upd_rej_cnt = 0;
- vlocation->upd_busy_cnt = 0;
-
- ret = afs_vlocation_update_begin(vlocation);
- if (ret < 0) {
- afs_vlocation_update_abandon(vlocation, AFS_VLUPD_SLEEP, ret);
- afs_kafstimod_add_timer(&vlocation->upd_timer,
- AFS_VLDB_TIMEOUT);
- afs_put_vlocation(vlocation);
+ /* now reap the corpses we've extracted */
+ while (!list_empty(&corpses)) {
+ vl = list_entry(corpses.next, struct afs_vlocation, grave);
+ list_del(&vl->grave);
+ afs_vlocation_destroy(vl);
}
_leave("");
- return;
+}
- out_unlock2:
- spin_unlock(&afs_vlocation_update_lock);
- out_unlock1:
- spin_unlock(&vlocation->cell->vl_gylock);
- _leave("");
- return;
+/*
+ * initialise the VL update process
+ */
+int __init afs_vlocation_update_init(void)
+{
+ afs_vlocation_update_worker =
+ create_singlethread_workqueue("kafs_vlupdated");
+ return afs_vlocation_update_worker ? 0 : -ENOMEM;
+}
-} /* end afs_vlocation_update_timer() */
+/*
+ * discard all the volume location records for rmmod
+ */
+void __exit afs_vlocation_purge(void)
+{
+ afs_vlocation_timeout = 0;
+
+ spin_lock(&afs_vlocation_updates_lock);
+ list_del_init(&afs_vlocation_updates);
+ spin_unlock(&afs_vlocation_updates_lock);
+ cancel_delayed_work(&afs_vlocation_update);
+ queue_delayed_work(afs_vlocation_update_worker,
+ &afs_vlocation_update, 0);
+ destroy_workqueue(afs_vlocation_update_worker);
+
+ cancel_delayed_work(&afs_vlocation_reap);
+ schedule_delayed_work(&afs_vlocation_reap, 0);
+}
-/*****************************************************************************/
/*
- * attend to an update operation upon which an event happened
- * - called in kafsasyncd context
+ * update a volume location
*/
-static void afs_vlocation_update_attend(struct afs_async_op *op)
+static void afs_vlocation_updater(struct work_struct *work)
{
struct afs_cache_vlocation vldb;
- struct afs_vlocation *vlocation =
- list_entry(op, struct afs_vlocation, upd_op);
- unsigned tmp;
+ struct afs_vlocation *vl, *xvl;
+ time_t now;
+ long timeout;
int ret;
- _enter("%s", vlocation->vldb.name);
-
- ret = afs_rxvl_get_entry_by_id_async2(op, &vldb);
- switch (ret) {
- case -EAGAIN:
- _leave(" [unfinished]");
- return;
-
- case 0:
- _debug("END VL UPDATE: %d\n", ret);
- vlocation->valid = 1;
-
- _debug("Done VL Lookup: %02x { %08x(%x) %08x(%x) %08x(%x) }",
- vldb.vidmask,
- ntohl(vldb.servers[0].s_addr), vldb.srvtmask[0],
- ntohl(vldb.servers[1].s_addr), vldb.srvtmask[1],
- ntohl(vldb.servers[2].s_addr), vldb.srvtmask[2]
- );
-
- _debug("Vids: %08x %08x %08x",
- vldb.vid[0], vldb.vid[1], vldb.vid[2]);
-
- afs_vlocation_update_abandon(vlocation, AFS_VLUPD_SLEEP, 0);
-
- down_write(&vlocation->cell->vl_sem);
-
- /* actually update the cache */
- if (strncmp(vldb.name, vlocation->vldb.name,
- sizeof(vlocation->vldb.name)) != 0)
- printk("kAFS: name of volume '%s'"
- " changed to '%s' on server\n",
- vlocation->vldb.name, vldb.name);
-
- memcpy(&vlocation->vldb, &vldb, sizeof(vlocation->vldb));
-
-#if 0
- /* TODO update volume entry in local cache */
-#endif
-
- up_write(&vlocation->cell->vl_sem);
-
- if (ret < 0)
- printk("kAFS: failed to update local cache: %d\n", ret);
-
- afs_kafstimod_add_timer(&vlocation->upd_timer,
- AFS_VLDB_TIMEOUT);
- afs_put_vlocation(vlocation);
- _leave(" [found]");
- return;
-
- case -ENOMEDIUM:
- vlocation->upd_rej_cnt++;
- goto try_next;
-
- /* the server is locked - retry in a very short while */
- case -EBUSY:
- vlocation->upd_busy_cnt++;
- if (vlocation->upd_busy_cnt > 3)
- goto try_next; /* too many retries */
-
- afs_vlocation_update_abandon(vlocation,
- AFS_VLUPD_BUSYSLEEP, 0);
- afs_kafstimod_add_timer(&vlocation->upd_timer, HZ / 2);
- afs_put_vlocation(vlocation);
- _leave(" [busy]");
- return;
-
- case -ENETUNREACH:
- case -EHOSTUNREACH:
- case -ECONNREFUSED:
- case -EREMOTEIO:
- /* record bad vlserver info in the cell too
- * - TODO: use down_write_trylock() if available
- */
- if (vlocation->upd_curr_svix == vlocation->cell->vl_curr_svix)
- vlocation->cell->vl_curr_svix =
- vlocation->cell->vl_curr_svix %
- vlocation->cell->vl_naddrs;
-
- case -EBADRQC:
- case -EINVAL:
- case -EACCES:
- case -EBADMSG:
- goto try_next;
-
- default:
- goto abandon;
- }
-
- /* try contacting the next server */
- try_next:
- vlocation->upd_busy_cnt = 0;
-
- /* discard the server record */
- afs_put_server(vlocation->upd_op.server);
- vlocation->upd_op.server = NULL;
+ _enter("");
- tmp = vlocation->cell->vl_naddrs;
- if (tmp == 0)
- goto abandon;
+ now = get_seconds();
- vlocation->upd_curr_svix++;
- if (vlocation->upd_curr_svix >= tmp)
- vlocation->upd_curr_svix = 0;
- if (vlocation->upd_first_svix >= tmp)
- vlocation->upd_first_svix = tmp - 1;
+ /* find a record to update */
+ spin_lock(&afs_vlocation_updates_lock);
+ for (;;) {
+ if (list_empty(&afs_vlocation_updates)) {
+ spin_unlock(&afs_vlocation_updates_lock);
+ _leave(" [nothing]");
+ return;
+ }
- /* move to the next server */
- if (vlocation->upd_curr_svix != vlocation->upd_first_svix) {
- afs_vlocation_update_begin(vlocation);
- _leave(" [next]");
- return;
+ vl = list_entry(afs_vlocation_updates.next,
+ struct afs_vlocation, update);
+ if (atomic_read(&vl->usage) > 0)
+ break;
+ list_del_init(&vl->update);
}
- /* run out of servers to try - was the volume rejected? */
- if (vlocation->upd_rej_cnt > 0) {
- printk("kAFS: Active volume no longer valid '%s'\n",
- vlocation->vldb.name);
- vlocation->valid = 0;
- afs_vlocation_update_abandon(vlocation, AFS_VLUPD_SLEEP, 0);
- afs_kafstimod_add_timer(&vlocation->upd_timer,
- AFS_VLDB_TIMEOUT);
- afs_put_vlocation(vlocation);
- _leave(" [invalidated]");
+ timeout = vl->update_at - now;
+ if (timeout > 0) {
+ queue_delayed_work(afs_vlocation_update_worker,
+ &afs_vlocation_update, timeout * HZ);
+ spin_unlock(&afs_vlocation_updates_lock);
+ _leave(" [nothing]");
return;
}
- /* abandon the update */
- abandon:
- afs_vlocation_update_abandon(vlocation, AFS_VLUPD_SLEEP, ret);
- afs_kafstimod_add_timer(&vlocation->upd_timer, HZ * 10);
- afs_put_vlocation(vlocation);
- _leave(" [abandoned]");
-
-} /* end afs_vlocation_update_attend() */
-
-/*****************************************************************************/
-/*
- * deal with an update operation being discarded
- * - called in kafsasyncd context when it's dying due to rmmod
- * - the call has already been aborted and put()'d
- */
-static void afs_vlocation_update_discard(struct afs_async_op *op)
-{
- struct afs_vlocation *vlocation =
- list_entry(op, struct afs_vlocation, upd_op);
+ list_del_init(&vl->update);
+ atomic_inc(&vl->usage);
+ spin_unlock(&afs_vlocation_updates_lock);
- _enter("%s", vlocation->vldb.name);
+ /* we can now perform the update */
+ _debug("update %s", vl->vldb.name);
+ vl->state = AFS_VL_UPDATING;
+ vl->upd_rej_cnt = 0;
+ vl->upd_busy_cnt = 0;
- afs_put_server(op->server);
- op->server = NULL;
+ ret = afs_vlocation_update_record(vl, NULL, &vldb);
+ spin_lock(&vl->lock);
+ switch (ret) {
+ case 0:
+ afs_vlocation_apply_update(vl, &vldb);
+ vl->state = AFS_VL_VALID;
+ wake_up(&vl->waitq);
+ break;
+ case -ENOMEDIUM:
+ vl->state = AFS_VL_VOLUME_DELETED;
+ break;
+ default:
+ vl->state = AFS_VL_UNCERTAIN;
+ break;
+ }
+ spin_unlock(&vl->lock);
- afs_put_vlocation(vlocation);
+ /* and then reschedule */
+ _debug("reschedule");
+ vl->update_at = get_seconds() + afs_vlocation_update_timeout;
- _leave("");
-} /* end afs_vlocation_update_discard() */
+ spin_lock(&afs_vlocation_updates_lock);
-/*****************************************************************************/
-/*
- * match a VLDB record stored in the cache
- * - may also load target from entry
- */
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_vlocation_cache_match(void *target,
- const void *entry)
-{
- const struct afs_cache_vlocation *vldb = entry;
- struct afs_vlocation *vlocation = target;
-
- _enter("{%s},{%s}", vlocation->vldb.name, vldb->name);
-
- if (strncmp(vlocation->vldb.name, vldb->name, sizeof(vldb->name)) == 0
- ) {
- if (!vlocation->valid ||
- vlocation->vldb.rtime == vldb->rtime
- ) {
- vlocation->vldb = *vldb;
- vlocation->valid = 1;
- _leave(" = SUCCESS [c->m]");
- return CACHEFS_MATCH_SUCCESS;
- }
- /* need to update cache if cached info differs */
- else if (memcmp(&vlocation->vldb, vldb, sizeof(*vldb)) != 0) {
- /* delete if VIDs for this name differ */
- if (memcmp(&vlocation->vldb.vid,
- &vldb->vid,
- sizeof(vldb->vid)) != 0) {
- _leave(" = DELETE");
- return CACHEFS_MATCH_SUCCESS_DELETE;
- }
-
- _leave(" = UPDATE");
- return CACHEFS_MATCH_SUCCESS_UPDATE;
- }
- else {
- _leave(" = SUCCESS");
- return CACHEFS_MATCH_SUCCESS;
- }
+ if (!list_empty(&afs_vlocation_updates)) {
+ /* next update in 10 minutes, but wait at least 1 second more
+ * than the newest record already queued so that we don't spam
+ * the VL server suddenly with lots of requests
+ */
+ xvl = list_entry(afs_vlocation_updates.prev,
+ struct afs_vlocation, update);
+ if (vl->update_at <= xvl->update_at)
+ vl->update_at = xvl->update_at + 1;
+ xvl = list_entry(afs_vlocation_updates.next,
+ struct afs_vlocation, update);
+ timeout = xvl->update_at - now;
+ if (timeout < 0)
+ timeout = 0;
+ } else {
+ timeout = afs_vlocation_update_timeout;
}
- _leave(" = FAILED");
- return CACHEFS_MATCH_FAILED;
-} /* end afs_vlocation_cache_match() */
-#endif
-
-/*****************************************************************************/
-/*
- * update a VLDB record stored in the cache
- */
-#ifdef AFS_CACHING_SUPPORT
-static void afs_vlocation_cache_update(void *source, void *entry)
-{
- struct afs_cache_vlocation *vldb = entry;
- struct afs_vlocation *vlocation = source;
+ ASSERT(list_empty(&vl->update));
- _enter("");
-
- *vldb = vlocation->vldb;
+ list_add_tail(&vl->update, &afs_vlocation_updates);
-} /* end afs_vlocation_cache_update() */
-#endif
+ _debug("timeout %ld", timeout);
+ queue_delayed_work(afs_vlocation_update_worker,
+ &afs_vlocation_update, timeout * HZ);
+ spin_unlock(&afs_vlocation_updates_lock);
+ afs_put_vlocation(vl);
+}
-/* vnode.c: AFS vnode management
+/* AFS vnode management
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include "volume.h"
-#include "cell.h"
-#include "cmservice.h"
-#include "fsclient.h"
-#include "vlclient.h"
-#include "vnode.h"
#include "internal.h"
-static void afs_vnode_cb_timed_out(struct afs_timer *timer);
+#if 0
+static noinline bool dump_tree_aux(struct rb_node *node, struct rb_node *parent,
+ int depth, char lr)
+{
+ struct afs_vnode *vnode;
+ bool bad = false;
+
+ if (!node)
+ return false;
+
+ if (node->rb_left)
+ bad = dump_tree_aux(node->rb_left, node, depth + 2, '/');
+
+ vnode = rb_entry(node, struct afs_vnode, cb_promise);
+ _debug("%c %*.*s%c%p {%d}",
+ rb_is_red(node) ? 'R' : 'B',
+ depth, depth, "", lr,
+ vnode, vnode->cb_expires_at);
+ if (rb_parent(node) != parent) {
+ printk("BAD: %p != %p\n", rb_parent(node), parent);
+ bad = true;
+ }
-struct afs_timer_ops afs_vnode_cb_timed_out_ops = {
- .timed_out = afs_vnode_cb_timed_out,
-};
+ if (node->rb_right)
+ bad |= dump_tree_aux(node->rb_right, node, depth + 2, '\\');
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_vnode_cache_match(void *target,
- const void *entry);
-static void afs_vnode_cache_update(void *source, void *entry);
+ return bad;
+}
-struct cachefs_index_def afs_vnode_cache_index_def = {
- .name = "vnode",
- .data_size = sizeof(struct afs_cache_vnode),
- .keys[0] = { CACHEFS_INDEX_KEYS_BIN, 4 },
- .match = afs_vnode_cache_match,
- .update = afs_vnode_cache_update,
-};
+static noinline void dump_tree(const char *name, struct afs_server *server)
+{
+ _enter("%s", name);
+ if (dump_tree_aux(server->cb_promises.rb_node, NULL, 0, '-'))
+ BUG();
+}
#endif
-/*****************************************************************************/
/*
- * handle a callback timing out
- * TODO: retain a ref to vnode struct for an outstanding callback timeout
+ * insert a vnode into the backing server's vnode tree
*/
-static void afs_vnode_cb_timed_out(struct afs_timer *timer)
+static void afs_install_vnode(struct afs_vnode *vnode,
+ struct afs_server *server)
{
- struct afs_server *oldserver;
- struct afs_vnode *vnode;
+ struct afs_server *old_server = vnode->server;
+ struct afs_vnode *xvnode;
+ struct rb_node *parent, **p;
- vnode = list_entry(timer, struct afs_vnode, cb_timeout);
+ _enter("%p,%p", vnode, server);
- _enter("%p", vnode);
+ if (old_server) {
+ spin_lock(&old_server->fs_lock);
+ rb_erase(&vnode->server_rb, &old_server->fs_vnodes);
+ spin_unlock(&old_server->fs_lock);
+ }
- /* set the changed flag in the vnode and release the server */
- spin_lock(&vnode->lock);
+ afs_get_server(server);
+ vnode->server = server;
+ afs_put_server(old_server);
+
+ /* insert into the server's vnode tree in FID order */
+ spin_lock(&server->fs_lock);
+
+ parent = NULL;
+ p = &server->fs_vnodes.rb_node;
+ while (*p) {
+ parent = *p;
+ xvnode = rb_entry(parent, struct afs_vnode, server_rb);
+ if (vnode->fid.vid < xvnode->fid.vid)
+ p = &(*p)->rb_left;
+ else if (vnode->fid.vid > xvnode->fid.vid)
+ p = &(*p)->rb_right;
+ else if (vnode->fid.vnode < xvnode->fid.vnode)
+ p = &(*p)->rb_left;
+ else if (vnode->fid.vnode > xvnode->fid.vnode)
+ p = &(*p)->rb_right;
+ else if (vnode->fid.unique < xvnode->fid.unique)
+ p = &(*p)->rb_left;
+ else if (vnode->fid.unique > xvnode->fid.unique)
+ p = &(*p)->rb_right;
+ else
+ BUG(); /* can't happen unless afs_iget() malfunctions */
+ }
+
+ rb_link_node(&vnode->server_rb, parent, p);
+ rb_insert_color(&vnode->server_rb, &server->fs_vnodes);
- oldserver = xchg(&vnode->cb_server, NULL);
- if (oldserver) {
- vnode->flags |= AFS_VNODE_CHANGED;
+ spin_unlock(&server->fs_lock);
+ _leave("");
+}
- spin_lock(&afs_cb_hash_lock);
- list_del_init(&vnode->cb_hash_link);
- spin_unlock(&afs_cb_hash_lock);
+/*
+ * insert a vnode into the promising server's update/expiration tree
+ * - caller must hold vnode->lock
+ */
+static void afs_vnode_note_promise(struct afs_vnode *vnode,
+ struct afs_server *server)
+{
+ struct afs_server *old_server;
+ struct afs_vnode *xvnode;
+ struct rb_node *parent, **p;
- spin_lock(&oldserver->cb_lock);
- list_del_init(&vnode->cb_link);
- spin_unlock(&oldserver->cb_lock);
+ _enter("%p,%p", vnode, server);
+
+ ASSERT(server != NULL);
+
+ old_server = vnode->server;
+ if (vnode->cb_promised) {
+ if (server == old_server &&
+ vnode->cb_expires == vnode->cb_expires_at) {
+ _leave(" [no change]");
+ return;
+ }
+
+ spin_lock(&old_server->cb_lock);
+ if (vnode->cb_promised) {
+ _debug("delete");
+ rb_erase(&vnode->cb_promise, &old_server->cb_promises);
+ vnode->cb_promised = false;
+ }
+ spin_unlock(&old_server->cb_lock);
}
- spin_unlock(&vnode->lock);
+ if (vnode->server != server)
+ afs_install_vnode(vnode, server);
+
+ vnode->cb_expires_at = vnode->cb_expires;
+ _debug("PROMISE on %p {%lu}",
+ vnode, (unsigned long) vnode->cb_expires_at);
+
+ /* abuse an RB-tree to hold the expiration order (we may have multiple
+ * items with the same expiration time) */
+ spin_lock(&server->cb_lock);
+
+ parent = NULL;
+ p = &server->cb_promises.rb_node;
+ while (*p) {
+ parent = *p;
+ xvnode = rb_entry(parent, struct afs_vnode, cb_promise);
+ if (vnode->cb_expires_at < xvnode->cb_expires_at)
+ p = &(*p)->rb_left;
+ else
+ p = &(*p)->rb_right;
+ }
- afs_put_server(oldserver);
+ rb_link_node(&vnode->cb_promise, parent, p);
+ rb_insert_color(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = true;
+ spin_unlock(&server->cb_lock);
_leave("");
-} /* end afs_vnode_cb_timed_out() */
+}
-/*****************************************************************************/
/*
- * finish off updating the recorded status of a file
+ * handle remote file deletion by discarding the callback promise
+ */
+static void afs_vnode_deleted_remotely(struct afs_vnode *vnode)
+{
+ struct afs_server *server;
+
+ set_bit(AFS_VNODE_DELETED, &vnode->flags);
+
+ server = vnode->server;
+ if (vnode->cb_promised) {
+ spin_lock(&server->cb_lock);
+ if (vnode->cb_promised) {
+ rb_erase(&vnode->cb_promise, &server->cb_promises);
+ vnode->cb_promised = false;
+ }
+ spin_unlock(&server->cb_lock);
+ }
+
+ spin_lock(&vnode->server->fs_lock);
+ rb_erase(&vnode->server_rb, &vnode->server->fs_vnodes);
+ spin_unlock(&vnode->server->fs_lock);
+
+ vnode->server = NULL;
+ afs_put_server(server);
+}
+
+/*
+ * finish off updating the recorded status of a file after a successful
+ * operation completion
* - starts callback expiry timer
* - adds to server's callback list
*/
-static void afs_vnode_finalise_status_update(struct afs_vnode *vnode,
- struct afs_server *server,
- int ret)
+void afs_vnode_finalise_status_update(struct afs_vnode *vnode,
+ struct afs_server *server)
{
struct afs_server *oldserver = NULL;
- _enter("%p,%p,%d", vnode, server, ret);
+ _enter("%p,%p", vnode, server);
spin_lock(&vnode->lock);
+ clear_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+ afs_vnode_note_promise(vnode, server);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+ spin_unlock(&vnode->lock);
+
+ wake_up_all(&vnode->update_waitq);
+ afs_put_server(oldserver);
+ _leave("");
+}
- vnode->flags &= ~AFS_VNODE_CHANGED;
+/*
+ * finish off updating the recorded status of a file after an operation failed
+ */
+static void afs_vnode_status_update_failed(struct afs_vnode *vnode, int ret)
+{
+ _enter("%p,%d", vnode, ret);
- if (ret == 0) {
- /* adjust the callback timeout appropriately */
- afs_kafstimod_add_timer(&vnode->cb_timeout,
- vnode->cb_expiry * HZ);
-
- spin_lock(&afs_cb_hash_lock);
- list_move_tail(&vnode->cb_hash_link,
- &afs_cb_hash(server, &vnode->fid));
- spin_unlock(&afs_cb_hash_lock);
-
- /* swap ref to old callback server with that for new callback
- * server */
- oldserver = xchg(&vnode->cb_server, server);
- if (oldserver != server) {
- if (oldserver) {
- spin_lock(&oldserver->cb_lock);
- list_del_init(&vnode->cb_link);
- spin_unlock(&oldserver->cb_lock);
- }
+ spin_lock(&vnode->lock);
- afs_get_server(server);
- spin_lock(&server->cb_lock);
- list_add_tail(&vnode->cb_link, &server->cb_promises);
- spin_unlock(&server->cb_lock);
- }
- else {
- /* same server */
- oldserver = NULL;
- }
- }
- else if (ret == -ENOENT) {
- /* the file was deleted - clear the callback timeout */
- oldserver = xchg(&vnode->cb_server, NULL);
- afs_kafstimod_del_timer(&vnode->cb_timeout);
+ clear_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+ if (ret == -ENOENT) {
+ /* the file was deleted on the server */
_debug("got NOENT from server - marking file deleted");
- vnode->flags |= AFS_VNODE_DELETED;
+ afs_vnode_deleted_remotely(vnode);
}
vnode->update_cnt--;
-
+ ASSERTCMP(vnode->update_cnt, >=, 0);
spin_unlock(&vnode->lock);
wake_up_all(&vnode->update_waitq);
-
- afs_put_server(oldserver);
-
_leave("");
+}
-} /* end afs_vnode_finalise_status_update() */
-
-/*****************************************************************************/
/*
* fetch file status from the volume
* - don't issue a fetch if:
* - there are any outstanding ops that will fetch the status
* - TODO implement local caching
*/
-int afs_vnode_fetch_status(struct afs_vnode *vnode)
+int afs_vnode_fetch_status(struct afs_vnode *vnode,
+ struct afs_vnode *auth_vnode, struct key *key)
{
struct afs_server *server;
+ unsigned long acl_order;
int ret;
DECLARE_WAITQUEUE(myself, current);
vnode->volume->vlocation->vldb.name,
vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique);
- if (!(vnode->flags & AFS_VNODE_CHANGED) && vnode->cb_server) {
+ if (!test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags) &&
+ vnode->cb_promised) {
_leave(" [unchanged]");
return 0;
}
- if (vnode->flags & AFS_VNODE_DELETED) {
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
_leave(" [deleted]");
return -ENOENT;
}
+ acl_order = 0;
+ if (auth_vnode)
+ acl_order = auth_vnode->acl_order;
+
spin_lock(&vnode->lock);
- if (!(vnode->flags & AFS_VNODE_CHANGED)) {
+ if (!test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags) &&
+ vnode->cb_promised) {
spin_unlock(&vnode->lock);
_leave(" [unchanged]");
return 0;
}
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+
if (vnode->update_cnt > 0) {
/* someone else started a fetch */
+ _debug("wait on fetch %d", vnode->update_cnt);
+
set_current_state(TASK_UNINTERRUPTIBLE);
+ ASSERT(myself.func != NULL);
add_wait_queue(&vnode->update_waitq, &myself);
/* wait for the status to be updated */
for (;;) {
- if (!(vnode->flags & AFS_VNODE_CHANGED))
+ if (!test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags))
break;
- if (vnode->flags & AFS_VNODE_DELETED)
+ if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
break;
- /* it got updated and invalidated all before we saw
- * it */
+ /* check to see if it got updated and invalidated all
+ * before we saw it */
if (vnode->update_cnt == 0) {
remove_wait_queue(&vnode->update_waitq,
&myself);
spin_unlock(&vnode->lock);
set_current_state(TASK_RUNNING);
- return vnode->flags & AFS_VNODE_DELETED ? -ENOENT : 0;
+ return test_bit(AFS_VNODE_DELETED, &vnode->flags) ?
+ -ENOENT : 0;
}
- get_anyway:
+get_anyway:
/* okay... we're going to have to initiate the op */
vnode->update_cnt++;
* vnode */
do {
/* pick a server to query */
- ret = afs_volume_pick_fileserver(vnode->volume, &server);
- if (ret<0)
- return ret;
+ server = afs_volume_pick_fileserver(vnode);
+ if (IS_ERR(server))
+ goto no_server;
- _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+ _debug("USING SERVER: %p{%08x}",
+ server, ntohl(server->addr.s_addr));
- ret = afs_rxfs_fetch_file_status(server, vnode, NULL);
+ ret = afs_fs_fetch_file_status(server, key, vnode, NULL,
+ &afs_sync_call);
- } while (!afs_volume_release_fileserver(vnode->volume, server, ret));
+ } while (!afs_volume_release_fileserver(vnode, server, ret));
/* adjust the flags */
- afs_vnode_finalise_status_update(vnode, server, ret);
+ if (ret == 0) {
+ _debug("adjust");
+ if (auth_vnode)
+ afs_cache_permit(vnode, key, acl_order);
+ afs_vnode_finalise_status_update(vnode, server);
+ afs_put_server(server);
+ } else {
+ _debug("failed [%d]", ret);
+ afs_vnode_status_update_failed(vnode, ret);
+ }
- _leave(" = %d", ret);
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+
+ _leave(" = %d [cnt %d]", ret, vnode->update_cnt);
return ret;
-} /* end afs_vnode_fetch_status() */
-/*****************************************************************************/
+no_server:
+ spin_lock(&vnode->lock);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+ spin_unlock(&vnode->lock);
+ _leave(" = %ld [cnt %d]", PTR_ERR(server), vnode->update_cnt);
+ return PTR_ERR(server);
+}
+
/*
* fetch file data from the volume
- * - TODO implement caching and server failover
+ * - TODO implement caching
*/
-int afs_vnode_fetch_data(struct afs_vnode *vnode,
- struct afs_rxfs_fetch_descriptor *desc)
+int afs_vnode_fetch_data(struct afs_vnode *vnode, struct key *key,
+ off_t offset, size_t length, struct page *page)
{
struct afs_server *server;
int ret;
- _enter("%s,{%u,%u,%u}",
+ _enter("%s{%u,%u,%u},%x,,,",
vnode->volume->vlocation->vldb.name,
vnode->fid.vid,
vnode->fid.vnode,
- vnode->fid.unique);
+ vnode->fid.unique,
+ key_serial(key));
/* this op will fetch the status */
spin_lock(&vnode->lock);
* vnode */
do {
/* pick a server to query */
- ret = afs_volume_pick_fileserver(vnode->volume, &server);
- if (ret < 0)
- return ret;
+ server = afs_volume_pick_fileserver(vnode);
+ if (IS_ERR(server))
+ goto no_server;
_debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
- ret = afs_rxfs_fetch_file_data(server, vnode, desc, NULL);
+ ret = afs_fs_fetch_data(server, key, vnode, offset, length,
+ page, &afs_sync_call);
- } while (!afs_volume_release_fileserver(vnode->volume, server, ret));
+ } while (!afs_volume_release_fileserver(vnode, server, ret));
/* adjust the flags */
- afs_vnode_finalise_status_update(vnode, server, ret);
+ if (ret == 0) {
+ afs_vnode_finalise_status_update(vnode, server);
+ afs_put_server(server);
+ } else {
+ afs_vnode_status_update_failed(vnode, ret);
+ }
_leave(" = %d", ret);
return ret;
-} /* end afs_vnode_fetch_data() */
+no_server:
+ spin_lock(&vnode->lock);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+ spin_unlock(&vnode->lock);
+ return PTR_ERR(server);
+}
-/*****************************************************************************/
/*
- * break any outstanding callback on a vnode
- * - only relevent to server that issued it
+ * make a file or a directory
*/
-int afs_vnode_give_up_callback(struct afs_vnode *vnode)
+int afs_vnode_create(struct afs_vnode *vnode, struct key *key,
+ const char *name, umode_t mode, struct afs_fid *newfid,
+ struct afs_file_status *newstatus,
+ struct afs_callback *newcb, struct afs_server **_server)
{
struct afs_server *server;
int ret;
- _enter("%s,{%u,%u,%u}",
+ _enter("%s{%u,%u,%u},%x,%s,,",
vnode->volume->vlocation->vldb.name,
vnode->fid.vid,
vnode->fid.vnode,
- vnode->fid.unique);
-
- spin_lock(&afs_cb_hash_lock);
- list_del_init(&vnode->cb_hash_link);
- spin_unlock(&afs_cb_hash_lock);
+ vnode->fid.unique,
+ key_serial(key),
+ name);
- /* set the changed flag in the vnode and release the server */
+ /* this op will fetch the status on the directory we're creating in */
spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
- afs_kafstimod_del_timer(&vnode->cb_timeout);
+ do {
+ /* pick a server to query */
+ server = afs_volume_pick_fileserver(vnode);
+ if (IS_ERR(server))
+ goto no_server;
+
+ _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
- server = xchg(&vnode->cb_server, NULL);
- if (server) {
- vnode->flags |= AFS_VNODE_CHANGED;
+ ret = afs_fs_create(server, key, vnode, name, mode, newfid,
+ newstatus, newcb, &afs_sync_call);
- spin_lock(&server->cb_lock);
- list_del_init(&vnode->cb_link);
- spin_unlock(&server->cb_lock);
+ } while (!afs_volume_release_fileserver(vnode, server, ret));
+
+ /* adjust the flags */
+ if (ret == 0) {
+ afs_vnode_finalise_status_update(vnode, server);
+ *_server = server;
+ } else {
+ afs_vnode_status_update_failed(vnode, ret);
+ *_server = NULL;
}
+ _leave(" = %d [cnt %d]", ret, vnode->update_cnt);
+ return ret;
+
+no_server:
+ spin_lock(&vnode->lock);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
spin_unlock(&vnode->lock);
+ _leave(" = %ld [cnt %d]", PTR_ERR(server), vnode->update_cnt);
+ return PTR_ERR(server);
+}
- ret = 0;
- if (server) {
- ret = afs_rxfs_give_up_callback(server, vnode);
+/*
+ * remove a file or directory
+ */
+int afs_vnode_remove(struct afs_vnode *vnode, struct key *key, const char *name,
+ bool isdir)
+{
+ struct afs_server *server;
+ int ret;
+
+ _enter("%s{%u,%u,%u},%x,%s",
+ vnode->volume->vlocation->vldb.name,
+ vnode->fid.vid,
+ vnode->fid.vnode,
+ vnode->fid.unique,
+ key_serial(key),
+ name);
+
+ /* this op will fetch the status on the directory we're removing from */
+ spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
+
+ do {
+ /* pick a server to query */
+ server = afs_volume_pick_fileserver(vnode);
+ if (IS_ERR(server))
+ goto no_server;
+
+ _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+
+ ret = afs_fs_remove(server, key, vnode, name, isdir,
+ &afs_sync_call);
+
+ } while (!afs_volume_release_fileserver(vnode, server, ret));
+
+ /* adjust the flags */
+ if (ret == 0) {
+ afs_vnode_finalise_status_update(vnode, server);
afs_put_server(server);
+ } else {
+ afs_vnode_status_update_failed(vnode, ret);
}
- _leave(" = %d", ret);
+ _leave(" = %d [cnt %d]", ret, vnode->update_cnt);
return ret;
-} /* end afs_vnode_give_up_callback() */
-/*****************************************************************************/
+no_server:
+ spin_lock(&vnode->lock);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+ spin_unlock(&vnode->lock);
+ _leave(" = %ld [cnt %d]", PTR_ERR(server), vnode->update_cnt);
+ return PTR_ERR(server);
+}
+
/*
- * match a vnode record stored in the cache
+ * create a hard link
*/
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_vnode_cache_match(void *target,
- const void *entry)
+extern int afs_vnode_link(struct afs_vnode *dvnode, struct afs_vnode *vnode,
+ struct key *key, const char *name)
{
- const struct afs_cache_vnode *cvnode = entry;
- struct afs_vnode *vnode = target;
+ struct afs_server *server;
+ int ret;
- _enter("{%x,%x,%Lx},{%x,%x,%Lx}",
+ _enter("%s{%u,%u,%u},%s{%u,%u,%u},%x,%s",
+ dvnode->volume->vlocation->vldb.name,
+ dvnode->fid.vid,
+ dvnode->fid.vnode,
+ dvnode->fid.unique,
+ vnode->volume->vlocation->vldb.name,
+ vnode->fid.vid,
vnode->fid.vnode,
vnode->fid.unique,
- vnode->status.version,
- cvnode->vnode_id,
- cvnode->vnode_unique,
- cvnode->data_version);
-
- if (vnode->fid.vnode != cvnode->vnode_id) {
- _leave(" = FAILED");
- return CACHEFS_MATCH_FAILED;
+ key_serial(key),
+ name);
+
+ /* this op will fetch the status on the directory we're removing from */
+ spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
+ spin_lock(&dvnode->lock);
+ dvnode->update_cnt++;
+ spin_unlock(&dvnode->lock);
+
+ do {
+ /* pick a server to query */
+ server = afs_volume_pick_fileserver(dvnode);
+ if (IS_ERR(server))
+ goto no_server;
+
+ _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+
+ ret = afs_fs_link(server, key, dvnode, vnode, name,
+ &afs_sync_call);
+
+ } while (!afs_volume_release_fileserver(dvnode, server, ret));
+
+ /* adjust the flags */
+ if (ret == 0) {
+ afs_vnode_finalise_status_update(vnode, server);
+ afs_vnode_finalise_status_update(dvnode, server);
+ afs_put_server(server);
+ } else {
+ afs_vnode_status_update_failed(vnode, ret);
+ afs_vnode_status_update_failed(dvnode, ret);
}
- if (vnode->fid.unique != cvnode->vnode_unique ||
- vnode->status.version != cvnode->data_version) {
- _leave(" = DELETE");
- return CACHEFS_MATCH_SUCCESS_DELETE;
+ _leave(" = %d [cnt %d]", ret, vnode->update_cnt);
+ return ret;
+
+no_server:
+ spin_lock(&vnode->lock);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+ spin_unlock(&vnode->lock);
+ spin_lock(&dvnode->lock);
+ dvnode->update_cnt--;
+ ASSERTCMP(dvnode->update_cnt, >=, 0);
+ spin_unlock(&dvnode->lock);
+ _leave(" = %ld [cnt %d]", PTR_ERR(server), vnode->update_cnt);
+ return PTR_ERR(server);
+}
+
+/*
+ * create a symbolic link
+ */
+int afs_vnode_symlink(struct afs_vnode *vnode, struct key *key,
+ const char *name, const char *content,
+ struct afs_fid *newfid,
+ struct afs_file_status *newstatus,
+ struct afs_server **_server)
+{
+ struct afs_server *server;
+ int ret;
+
+ _enter("%s{%u,%u,%u},%x,%s,%s,,,",
+ vnode->volume->vlocation->vldb.name,
+ vnode->fid.vid,
+ vnode->fid.vnode,
+ vnode->fid.unique,
+ key_serial(key),
+ name, content);
+
+ /* this op will fetch the status on the directory we're creating in */
+ spin_lock(&vnode->lock);
+ vnode->update_cnt++;
+ spin_unlock(&vnode->lock);
+
+ do {
+ /* pick a server to query */
+ server = afs_volume_pick_fileserver(vnode);
+ if (IS_ERR(server))
+ goto no_server;
+
+ _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+
+ ret = afs_fs_symlink(server, key, vnode, name, content,
+ newfid, newstatus, &afs_sync_call);
+
+ } while (!afs_volume_release_fileserver(vnode, server, ret));
+
+ /* adjust the flags */
+ if (ret == 0) {
+ afs_vnode_finalise_status_update(vnode, server);
+ *_server = server;
+ } else {
+ afs_vnode_status_update_failed(vnode, ret);
+ *_server = NULL;
}
- _leave(" = SUCCESS");
- return CACHEFS_MATCH_SUCCESS;
-} /* end afs_vnode_cache_match() */
-#endif
+ _leave(" = %d [cnt %d]", ret, vnode->update_cnt);
+ return ret;
+
+no_server:
+ spin_lock(&vnode->lock);
+ vnode->update_cnt--;
+ ASSERTCMP(vnode->update_cnt, >=, 0);
+ spin_unlock(&vnode->lock);
+ _leave(" = %ld [cnt %d]", PTR_ERR(server), vnode->update_cnt);
+ return PTR_ERR(server);
+}
-/*****************************************************************************/
/*
- * update a vnode record stored in the cache
+ * rename a file
*/
-#ifdef AFS_CACHING_SUPPORT
-static void afs_vnode_cache_update(void *source, void *entry)
+int afs_vnode_rename(struct afs_vnode *orig_dvnode,
+ struct afs_vnode *new_dvnode,
+ struct key *key,
+ const char *orig_name,
+ const char *new_name)
{
- struct afs_cache_vnode *cvnode = entry;
- struct afs_vnode *vnode = source;
+ struct afs_server *server;
+ int ret;
- _enter("");
+ _enter("%s{%u,%u,%u},%s{%u,%u,%u},%x,%s,%s",
+ orig_dvnode->volume->vlocation->vldb.name,
+ orig_dvnode->fid.vid,
+ orig_dvnode->fid.vnode,
+ orig_dvnode->fid.unique,
+ new_dvnode->volume->vlocation->vldb.name,
+ new_dvnode->fid.vid,
+ new_dvnode->fid.vnode,
+ new_dvnode->fid.unique,
+ key_serial(key),
+ orig_name,
+ new_name);
+
+ /* this op will fetch the status on both the directories we're dealing
+ * with */
+ spin_lock(&orig_dvnode->lock);
+ orig_dvnode->update_cnt++;
+ spin_unlock(&orig_dvnode->lock);
+ if (new_dvnode != orig_dvnode) {
+ spin_lock(&new_dvnode->lock);
+ new_dvnode->update_cnt++;
+ spin_unlock(&new_dvnode->lock);
+ }
- cvnode->vnode_id = vnode->fid.vnode;
- cvnode->vnode_unique = vnode->fid.unique;
- cvnode->data_version = vnode->status.version;
+ do {
+ /* pick a server to query */
+ server = afs_volume_pick_fileserver(orig_dvnode);
+ if (IS_ERR(server))
+ goto no_server;
-} /* end afs_vnode_cache_update() */
-#endif
+ _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr));
+
+ ret = afs_fs_rename(server, key, orig_dvnode, orig_name,
+ new_dvnode, new_name, &afs_sync_call);
+
+ } while (!afs_volume_release_fileserver(orig_dvnode, server, ret));
+
+ /* adjust the flags */
+ if (ret == 0) {
+ afs_vnode_finalise_status_update(orig_dvnode, server);
+ if (new_dvnode != orig_dvnode)
+ afs_vnode_finalise_status_update(new_dvnode, server);
+ afs_put_server(server);
+ } else {
+ afs_vnode_status_update_failed(orig_dvnode, ret);
+ if (new_dvnode != orig_dvnode)
+ afs_vnode_status_update_failed(new_dvnode, ret);
+ }
+
+ _leave(" = %d [cnt %d]", ret, orig_dvnode->update_cnt);
+ return ret;
+
+no_server:
+ spin_lock(&orig_dvnode->lock);
+ orig_dvnode->update_cnt--;
+ ASSERTCMP(orig_dvnode->update_cnt, >=, 0);
+ spin_unlock(&orig_dvnode->lock);
+ if (new_dvnode != orig_dvnode) {
+ spin_lock(&new_dvnode->lock);
+ new_dvnode->update_cnt--;
+ ASSERTCMP(new_dvnode->update_cnt, >=, 0);
+ spin_unlock(&new_dvnode->lock);
+ }
+ _leave(" = %ld [cnt %d]", PTR_ERR(server), orig_dvnode->update_cnt);
+ return PTR_ERR(server);
+}
+++ /dev/null
-/* vnode.h: AFS vnode record
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_VNODE_H
-#define _LINUX_AFS_VNODE_H
-
-#include <linux/fs.h>
-#include "server.h"
-#include "kafstimod.h"
-#include "cache.h"
-
-#ifdef __KERNEL__
-
-struct afs_rxfs_fetch_descriptor;
-
-/*****************************************************************************/
-/*
- * vnode catalogue entry
- */
-struct afs_cache_vnode
-{
- afs_vnodeid_t vnode_id; /* vnode ID */
- unsigned vnode_unique; /* vnode ID uniquifier */
- afs_dataversion_t data_version; /* data version */
-};
-
-#ifdef AFS_CACHING_SUPPORT
-extern struct cachefs_index_def afs_vnode_cache_index_def;
-#endif
-
-/*****************************************************************************/
-/*
- * AFS inode private data
- */
-struct afs_vnode
-{
- struct inode vfs_inode; /* the VFS's inode record */
-
- struct afs_volume *volume; /* volume on which vnode resides */
- struct afs_fid fid; /* the file identifier for this inode */
- struct afs_file_status status; /* AFS status info for this file */
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_cookie *cache; /* caching cookie */
-#endif
-
- wait_queue_head_t update_waitq; /* status fetch waitqueue */
- unsigned update_cnt; /* number of outstanding ops that will update the
- * status */
- spinlock_t lock; /* waitqueue/flags lock */
- unsigned flags;
-#define AFS_VNODE_CHANGED 0x00000001 /* set if vnode reported changed by callback */
-#define AFS_VNODE_DELETED 0x00000002 /* set if vnode deleted on server */
-#define AFS_VNODE_MOUNTPOINT 0x00000004 /* set if vnode is a mountpoint symlink */
-
- /* outstanding callback notification on this file */
- struct afs_server *cb_server; /* server that made the current promise */
- struct list_head cb_link; /* link in server's promises list */
- struct list_head cb_hash_link; /* link in master callback hash */
- struct afs_timer cb_timeout; /* timeout on promise */
- unsigned cb_version; /* callback version */
- unsigned cb_expiry; /* callback expiry time */
- afs_callback_type_t cb_type; /* type of callback */
-};
-
-static inline struct afs_vnode *AFS_FS_I(struct inode *inode)
-{
- return container_of(inode,struct afs_vnode,vfs_inode);
-}
-
-static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode)
-{
- return &vnode->vfs_inode;
-}
-
-extern int afs_vnode_fetch_status(struct afs_vnode *vnode);
-
-extern int afs_vnode_fetch_data(struct afs_vnode *vnode,
- struct afs_rxfs_fetch_descriptor *desc);
-
-extern int afs_vnode_give_up_callback(struct afs_vnode *vnode);
-
-extern struct afs_timer_ops afs_vnode_cb_timed_out_ops;
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_AFS_VNODE_H */
-/* volume.c: AFS volume management
+/* AFS volume management
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
-#include "volume.h"
-#include "vnode.h"
-#include "cell.h"
-#include "cache.h"
-#include "cmservice.h"
-#include "fsclient.h"
-#include "vlclient.h"
#include "internal.h"
-#ifdef __KDEBUG
static const char *afs_voltypes[] = { "R/W", "R/O", "BAK" };
-#endif
-
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_volume_cache_match(void *target,
- const void *entry);
-static void afs_volume_cache_update(void *source, void *entry);
-
-struct cachefs_index_def afs_volume_cache_index_def = {
- .name = "volume",
- .data_size = sizeof(struct afs_cache_vhash),
- .keys[0] = { CACHEFS_INDEX_KEYS_BIN, 1 },
- .keys[1] = { CACHEFS_INDEX_KEYS_BIN, 1 },
- .match = afs_volume_cache_match,
- .update = afs_volume_cache_update,
-};
-#endif
-/*****************************************************************************/
/*
* lookup a volume by name
* - this can be one of the following:
* - Rule 3: If parent volume is R/W, then only mount R/W volume unless
* explicitly told otherwise
*/
-int afs_volume_lookup(const char *name, struct afs_cell *cell, int rwpath,
- struct afs_volume **_volume)
+struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
{
struct afs_vlocation *vlocation = NULL;
struct afs_volume *volume = NULL;
- afs_voltype_t type;
- const char *cellname, *volname, *suffix;
+ struct afs_server *server = NULL;
char srvtmask;
- int force, ret, loop, cellnamesz, volnamesz;
-
- _enter("%s,,%d,", name, rwpath);
-
- if (!name || (name[0] != '%' && name[0] != '#') || !name[1]) {
- printk("kAFS: unparsable volume name\n");
- return -EINVAL;
- }
-
- /* determine the type of volume we're looking for */
- force = 0;
- type = AFSVL_ROVOL;
-
- if (rwpath || name[0] == '%') {
- type = AFSVL_RWVOL;
- force = 1;
- }
-
- suffix = strrchr(name, '.');
- if (suffix) {
- if (strcmp(suffix, ".readonly") == 0) {
- type = AFSVL_ROVOL;
- force = 1;
- }
- else if (strcmp(suffix, ".backup") == 0) {
- type = AFSVL_BACKVOL;
- force = 1;
- }
- else if (suffix[1] == 0) {
- }
- else {
- suffix = NULL;
- }
- }
+ int ret, loop;
- /* split the cell and volume names */
- name++;
- volname = strchr(name, ':');
- if (volname) {
- cellname = name;
- cellnamesz = volname - name;
- volname++;
- }
- else {
- volname = name;
- cellname = NULL;
- cellnamesz = 0;
- }
-
- volnamesz = suffix ? suffix - volname : strlen(volname);
-
- _debug("CELL:%*.*s [%p] VOLUME:%*.*s SUFFIX:%s TYPE:%d%s",
- cellnamesz, cellnamesz, cellname ?: "", cell,
- volnamesz, volnamesz, volname, suffix ?: "-",
- type,
- force ? " FORCE" : "");
-
- /* lookup the cell record */
- if (cellname || !cell) {
- ret = afs_cell_lookup(cellname, cellnamesz, &cell);
- if (ret<0) {
- printk("kAFS: unable to lookup cell '%s'\n",
- cellname ?: "");
- goto error;
- }
- }
- else {
- afs_get_cell(cell);
- }
+ _enter("{%*.*s,%d}",
+ params->volnamesz, params->volnamesz, params->volname, params->rwpath);
/* lookup the volume location record */
- ret = afs_vlocation_lookup(cell, volname, volnamesz, &vlocation);
- if (ret < 0)
+ vlocation = afs_vlocation_lookup(params->cell, params->key,
+ params->volname, params->volnamesz);
+ if (IS_ERR(vlocation)) {
+ ret = PTR_ERR(vlocation);
+ vlocation = NULL;
goto error;
+ }
/* make the final decision on the type we want */
ret = -ENOMEDIUM;
- if (force && !(vlocation->vldb.vidmask & (1 << type)))
+ if (params->force && !(vlocation->vldb.vidmask & (1 << params->type)))
goto error;
srvtmask = 0;
for (loop = 0; loop < vlocation->vldb.nservers; loop++)
srvtmask |= vlocation->vldb.srvtmask[loop];
- if (force) {
- if (!(srvtmask & (1 << type)))
+ if (params->force) {
+ if (!(srvtmask & (1 << params->type)))
goto error;
- }
- else if (srvtmask & AFS_VOL_VTM_RO) {
- type = AFSVL_ROVOL;
- }
- else if (srvtmask & AFS_VOL_VTM_RW) {
- type = AFSVL_RWVOL;
- }
- else {
+ } else if (srvtmask & AFS_VOL_VTM_RO) {
+ params->type = AFSVL_ROVOL;
+ } else if (srvtmask & AFS_VOL_VTM_RW) {
+ params->type = AFSVL_RWVOL;
+ } else {
goto error;
}
- down_write(&cell->vl_sem);
+ down_write(¶ms->cell->vl_sem);
/* is the volume already active? */
- if (vlocation->vols[type]) {
+ if (vlocation->vols[params->type]) {
/* yes - re-use it */
- volume = vlocation->vols[type];
+ volume = vlocation->vols[params->type];
afs_get_volume(volume);
goto success;
}
goto error_up;
atomic_set(&volume->usage, 1);
- volume->type = type;
- volume->type_force = force;
- volume->cell = cell;
- volume->vid = vlocation->vldb.vid[type];
+ volume->type = params->type;
+ volume->type_force = params->force;
+ volume->cell = params->cell;
+ volume->vid = vlocation->vldb.vid[params->type];
init_rwsem(&volume->server_sem);
/* look up all the applicable server records */
for (loop = 0; loop < 8; loop++) {
if (vlocation->vldb.srvtmask[loop] & (1 << volume->type)) {
- ret = afs_server_lookup(
- volume->cell,
- &vlocation->vldb.servers[loop],
- &volume->servers[volume->nservers]);
- if (ret < 0)
+ server = afs_lookup_server(
+ volume->cell, &vlocation->vldb.servers[loop]);
+ if (IS_ERR(server)) {
+ ret = PTR_ERR(server);
goto error_discard;
+ }
+ volume->servers[volume->nservers] = server;
volume->nservers++;
}
}
afs_get_vlocation(vlocation);
volume->vlocation = vlocation;
- vlocation->vols[type] = volume;
+ vlocation->vols[volume->type] = volume;
- success:
+success:
_debug("kAFS selected %s volume %08x",
afs_voltypes[volume->type], volume->vid);
- *_volume = volume;
- ret = 0;
+ up_write(¶ms->cell->vl_sem);
+ afs_put_vlocation(vlocation);
+ _leave(" = %p", volume);
+ return volume;
/* clean up */
- error_up:
- up_write(&cell->vl_sem);
- error:
+error_up:
+ up_write(¶ms->cell->vl_sem);
+error:
afs_put_vlocation(vlocation);
- afs_put_cell(cell);
-
- _leave(" = %d (%p)", ret, volume);
- return ret;
+ _leave(" = %d", ret);
+ return ERR_PTR(ret);
- error_discard:
- up_write(&cell->vl_sem);
+error_discard:
+ up_write(¶ms->cell->vl_sem);
for (loop = volume->nservers - 1; loop >= 0; loop--)
afs_put_server(volume->servers[loop]);
kfree(volume);
goto error;
-} /* end afs_volume_lookup() */
+}
-/*****************************************************************************/
/*
* destroy a volume record
*/
_enter("%p", volume);
- vlocation = volume->vlocation;
+ ASSERTCMP(atomic_read(&volume->usage), >, 0);
- /* sanity check */
- BUG_ON(atomic_read(&volume->usage) <= 0);
+ vlocation = volume->vlocation;
/* to prevent a race, the decrement and the dequeue must be effectively
* atomic */
kfree(volume);
_leave(" [destroyed]");
-} /* end afs_put_volume() */
+}
-/*****************************************************************************/
/*
* pick a server to use to try accessing this volume
* - returns with an elevated usage count on the server chosen
*/
-int afs_volume_pick_fileserver(struct afs_volume *volume,
- struct afs_server **_server)
+struct afs_server *afs_volume_pick_fileserver(struct afs_vnode *vnode)
{
+ struct afs_volume *volume = vnode->volume;
struct afs_server *server;
int ret, state, loop;
_enter("%s", volume->vlocation->vldb.name);
+ /* stick with the server we're already using if we can */
+ if (vnode->server && vnode->server->fs_state == 0) {
+ afs_get_server(vnode->server);
+ _leave(" = %p [current]", vnode->server);
+ return vnode->server;
+ }
+
down_read(&volume->server_sem);
/* handle the no-server case */
ret = volume->rjservers ? -ENOMEDIUM : -ESTALE;
up_read(&volume->server_sem);
_leave(" = %d [no servers]", ret);
- return ret;
+ return ERR_PTR(ret);
}
/* basically, just search the list for the first live server and use
server = volume->servers[loop];
state = server->fs_state;
+ _debug("consider %d [%d]", loop, state);
+
switch (state) {
/* found an apparently healthy server */
case 0:
afs_get_server(server);
up_read(&volume->server_sem);
- *_server = server;
- _leave(" = 0 (picked %08x)",
- ntohl(server->addr.s_addr));
- return 0;
+ _leave(" = %p (picked %08x)",
+ server, ntohl(server->addr.s_addr));
+ return server;
case -ENETUNREACH:
if (ret == 0)
*/
up_read(&volume->server_sem);
_leave(" = %d", ret);
- return ret;
-} /* end afs_volume_pick_fileserver() */
+ return ERR_PTR(ret);
+}
-/*****************************************************************************/
/*
* release a server after use
* - releases the ref on the server struct that was acquired by picking
* - records result of using a particular server to access a volume
* - return 0 to try again, 1 if okay or to issue error
+ * - the caller must release the server struct if result was 0
*/
-int afs_volume_release_fileserver(struct afs_volume *volume,
+int afs_volume_release_fileserver(struct afs_vnode *vnode,
struct afs_server *server,
int result)
{
+ struct afs_volume *volume = vnode->volume;
unsigned loop;
_enter("%s,%08x,%d",
/* success */
case 0:
server->fs_act_jif = jiffies;
- break;
+ server->fs_state = 0;
+ _leave("");
+ return 1;
/* the fileserver denied all knowledge of the volume */
case -ENOMEDIUM:
server->fs_act_jif = jiffies;
down_write(&volume->server_sem);
- /* first, find where the server is in the active list (if it
+ /* firstly, find where the server is in the active list (if it
* is) */
for (loop = 0; loop < volume->nservers; loop++)
if (volume->servers[loop] == server)
case -ENETUNREACH:
case -EHOSTUNREACH:
case -ECONNREFUSED:
+ case -ETIME:
case -ETIMEDOUT:
case -EREMOTEIO:
/* mark the server as dead
server->fs_act_jif = jiffies;
case -ENOMEM:
case -ENONET:
- break;
+ /* tell the caller to accept the result */
+ afs_put_server(server);
+ _leave(" [local failure]");
+ return 1;
}
- /* tell the caller to accept the result */
- afs_put_server(server);
- _leave("");
- return 1;
-
/* tell the caller to loop around and try the next server */
- try_next_server_upw:
+try_next_server_upw:
up_write(&volume->server_sem);
- try_next_server:
+try_next_server:
afs_put_server(server);
_leave(" [try next server]");
return 0;
-
-} /* end afs_volume_release_fileserver() */
-
-/*****************************************************************************/
-/*
- * match a volume hash record stored in the cache
- */
-#ifdef AFS_CACHING_SUPPORT
-static cachefs_match_val_t afs_volume_cache_match(void *target,
- const void *entry)
-{
- const struct afs_cache_vhash *vhash = entry;
- struct afs_volume *volume = target;
-
- _enter("{%u},{%u}", volume->type, vhash->vtype);
-
- if (volume->type == vhash->vtype) {
- _leave(" = SUCCESS");
- return CACHEFS_MATCH_SUCCESS;
- }
-
- _leave(" = FAILED");
- return CACHEFS_MATCH_FAILED;
-} /* end afs_volume_cache_match() */
-#endif
-
-/*****************************************************************************/
-/*
- * update a volume hash record stored in the cache
- */
-#ifdef AFS_CACHING_SUPPORT
-static void afs_volume_cache_update(void *source, void *entry)
-{
- struct afs_cache_vhash *vhash = entry;
- struct afs_volume *volume = source;
-
- _enter("");
-
- vhash->vtype = volume->type;
-
-} /* end afs_volume_cache_update() */
-#endif
+}
+++ /dev/null
-/* volume.h: AFS volume management
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_AFS_VOLUME_H
-#define _LINUX_AFS_VOLUME_H
-
-#include "types.h"
-#include "fsclient.h"
-#include "kafstimod.h"
-#include "kafsasyncd.h"
-#include "cache.h"
-
-typedef enum {
- AFS_VLUPD_SLEEP, /* sleeping waiting for update timer to fire */
- AFS_VLUPD_PENDING, /* on pending queue */
- AFS_VLUPD_INPROGRESS, /* op in progress */
- AFS_VLUPD_BUSYSLEEP, /* sleeping because server returned EBUSY */
-
-} __attribute__((packed)) afs_vlocation_upd_t;
-
-/*****************************************************************************/
-/*
- * entry in the cached volume location catalogue
- */
-struct afs_cache_vlocation
-{
- uint8_t name[64]; /* volume name (lowercase, padded with NULs) */
- uint8_t nservers; /* number of entries used in servers[] */
- uint8_t vidmask; /* voltype mask for vid[] */
- uint8_t srvtmask[8]; /* voltype masks for servers[] */
-#define AFS_VOL_VTM_RW 0x01 /* R/W version of the volume is available (on this server) */
-#define AFS_VOL_VTM_RO 0x02 /* R/O version of the volume is available (on this server) */
-#define AFS_VOL_VTM_BAK 0x04 /* backup version of the volume is available (on this server) */
-
- afs_volid_t vid[3]; /* volume IDs for R/W, R/O and Bak volumes */
- struct in_addr servers[8]; /* fileserver addresses */
- time_t rtime; /* last retrieval time */
-};
-
-#ifdef AFS_CACHING_SUPPORT
-extern struct cachefs_index_def afs_vlocation_cache_index_def;
-#endif
-
-/*****************************************************************************/
-/*
- * volume -> vnode hash table entry
- */
-struct afs_cache_vhash
-{
- afs_voltype_t vtype; /* which volume variation */
- uint8_t hash_bucket; /* which hash bucket this represents */
-} __attribute__((packed));
-
-#ifdef AFS_CACHING_SUPPORT
-extern struct cachefs_index_def afs_volume_cache_index_def;
-#endif
-
-/*****************************************************************************/
-/*
- * AFS volume location record
- */
-struct afs_vlocation
-{
- atomic_t usage;
- struct list_head link; /* link in cell volume location list */
- struct afs_timer timeout; /* decaching timer */
- struct afs_cell *cell; /* cell to which volume belongs */
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_cookie *cache; /* caching cookie */
-#endif
- struct afs_cache_vlocation vldb; /* volume information DB record */
- struct afs_volume *vols[3]; /* volume access record pointer (index by type) */
- rwlock_t lock; /* access lock */
- unsigned long read_jif; /* time at which last read from vlserver */
- struct afs_timer upd_timer; /* update timer */
- struct afs_async_op upd_op; /* update operation */
- afs_vlocation_upd_t upd_state; /* update state */
- unsigned short upd_first_svix; /* first server index during update */
- unsigned short upd_curr_svix; /* current server index during update */
- unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */
- unsigned short upd_busy_cnt; /* EBUSY count during update */
- unsigned short valid; /* T if valid */
-};
-
-extern int afs_vlocation_lookup(struct afs_cell *cell,
- const char *name,
- unsigned namesz,
- struct afs_vlocation **_vlocation);
-
-#define afs_get_vlocation(V) do { atomic_inc(&(V)->usage); } while(0)
-
-extern void afs_put_vlocation(struct afs_vlocation *vlocation);
-extern void afs_vlocation_do_timeout(struct afs_vlocation *vlocation);
-
-/*****************************************************************************/
-/*
- * AFS volume access record
- */
-struct afs_volume
-{
- atomic_t usage;
- struct afs_cell *cell; /* cell to which belongs (unrefd ptr) */
- struct afs_vlocation *vlocation; /* volume location */
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_cookie *cache; /* caching cookie */
-#endif
- afs_volid_t vid; /* volume ID */
- afs_voltype_t type; /* type of volume */
- char type_force; /* force volume type (suppress R/O -> R/W) */
- unsigned short nservers; /* number of server slots filled */
- unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */
- struct afs_server *servers[8]; /* servers on which volume resides (ordered) */
- struct rw_semaphore server_sem; /* lock for accessing current server */
-};
-
-extern int afs_volume_lookup(const char *name,
- struct afs_cell *cell,
- int rwpath,
- struct afs_volume **_volume);
-
-#define afs_get_volume(V) do { atomic_inc(&(V)->usage); } while(0)
-
-extern void afs_put_volume(struct afs_volume *volume);
-
-extern int afs_volume_pick_fileserver(struct afs_volume *volume,
- struct afs_server **_server);
-
-extern int afs_volume_release_fileserver(struct afs_volume *volume,
- struct afs_server *server,
- int result);
-
-#endif /* _LINUX_AFS_VOLUME_H */
return err;
}
+static int do_siocgstampns(unsigned int fd, unsigned int cmd, unsigned long arg)
+{
+ struct compat_timespec __user *up = compat_ptr(arg);
+ struct timespec kts;
+ mm_segment_t old_fs = get_fs();
+ int err;
+
+ set_fs(KERNEL_DS);
+ err = sys_ioctl(fd, cmd, (unsigned long)&kts);
+ set_fs(old_fs);
+ if (!err) {
+ err = put_user(kts.tv_sec, &up->tv_sec);
+ err |= __put_user(kts.tv_nsec, &up->tv_nsec);
+ }
+ return err;
+}
+
struct ifmap32 {
compat_ulong_t mem_start;
compat_ulong_t mem_end;
/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
HANDLE_IOCTL(SIOCRTMSG, ret_einval)
HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp)
+HANDLE_IOCTL(SIOCGSTAMPNS, do_siocgstampns)
#endif
#ifdef CONFIG_BLOCK
HANDLE_IOCTL(HDIO_GETGEO, hdio_getgeo)
*/
static int ecryptfs_process_nl_response(struct sk_buff *skb)
{
- struct nlmsghdr *nlh = (struct nlmsghdr*)skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(skb);
struct ecryptfs_message *msg = NLMSG_DATA(nlh);
int rc;
"rc = [%d]\n", rc);
return;
}
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (!NLMSG_OK(nlh, skb->len)) {
ecryptfs_printk(KERN_ERR, "Received corrupt netlink "
"message\n");
ecryptfs_nl_sock = netlink_kernel_create(NETLINK_ECRYPTFS, 0,
ecryptfs_receive_nl_message,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (!ecryptfs_nl_sock) {
rc = -EIO;
ecryptfs_printk(KERN_ERR, "Failed to create netlink socket\n");
static struct nfs_page * nfs_update_request(struct nfs_open_context*,
struct page *,
unsigned int, unsigned int);
-static void nfs_mark_request_dirty(struct nfs_page *req);
static long nfs_flush_mapping(struct address_space *mapping, struct writeback_control *wbc, int how);
static const struct rpc_call_ops nfs_write_partial_ops;
static const struct rpc_call_ops nfs_write_full_ops;
static int nfs_page_mark_flush(struct page *page)
{
struct nfs_page *req;
- spinlock_t *req_lock = &NFS_I(page->mapping->host)->req_lock;
+ struct nfs_inode *nfsi = NFS_I(page->mapping->host);
+ spinlock_t *req_lock = &nfsi->req_lock;
int ret;
spin_lock(req_lock);
return ret;
spin_lock(req_lock);
}
- spin_unlock(req_lock);
+ if (test_bit(PG_NEED_COMMIT, &req->wb_flags)) {
+ /* This request is marked for commit */
+ spin_unlock(req_lock);
+ nfs_unlock_request(req);
+ return 1;
+ }
if (nfs_set_page_writeback(page) == 0) {
nfs_list_remove_request(req);
- nfs_mark_request_dirty(req);
- }
+ /* add the request to the inode's dirty list. */
+ radix_tree_tag_set(&nfsi->nfs_page_tree,
+ req->wb_index, NFS_PAGE_TAG_DIRTY);
+ nfs_list_add_request(req, &nfsi->dirty);
+ nfsi->ndirty++;
+ spin_unlock(req_lock);
+ __mark_inode_dirty(page->mapping->host, I_DIRTY_PAGES);
+ } else
+ spin_unlock(req_lock);
ret = test_bit(PG_NEED_FLUSH, &req->wb_flags);
nfs_unlock_request(req);
return ret;
}
SetPagePrivate(req->wb_page);
set_page_private(req->wb_page, (unsigned long)req);
+ if (PageDirty(req->wb_page))
+ set_bit(PG_NEED_FLUSH, &req->wb_flags);
nfsi->npages++;
atomic_inc(&req->wb_count);
return 0;
set_page_private(req->wb_page, 0);
ClearPagePrivate(req->wb_page);
radix_tree_delete(&nfsi->nfs_page_tree, req->wb_index);
+ if (test_and_clear_bit(PG_NEED_FLUSH, &req->wb_flags))
+ __set_page_dirty_nobuffers(req->wb_page);
nfsi->npages--;
if (!nfsi->npages) {
spin_unlock(&nfsi->req_lock);
nfs_release_request(req);
}
-/*
- * Add a request to the inode's dirty list.
- */
-static void
-nfs_mark_request_dirty(struct nfs_page *req)
-{
- struct inode *inode = req->wb_context->dentry->d_inode;
- struct nfs_inode *nfsi = NFS_I(inode);
-
- spin_lock(&nfsi->req_lock);
- radix_tree_tag_set(&nfsi->nfs_page_tree,
- req->wb_index, NFS_PAGE_TAG_DIRTY);
- nfs_list_add_request(req, &nfsi->dirty);
- nfsi->ndirty++;
- spin_unlock(&nfsi->req_lock);
- __mark_inode_dirty(inode, I_DIRTY_PAGES);
-}
-
static void
nfs_redirty_request(struct nfs_page *req)
{
{
struct page *page = req->wb_page;
- if (page == NULL)
+ if (page == NULL || test_bit(PG_NEED_COMMIT, &req->wb_flags))
return 0;
return !PageWriteback(req->wb_page);
}
spin_lock(&nfsi->req_lock);
nfs_list_add_request(req, &nfsi->commit);
nfsi->ncommit++;
+ set_bit(PG_NEED_COMMIT, &(req)->wb_flags);
spin_unlock(&nfsi->req_lock);
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
}
+
+static inline
+int nfs_write_need_commit(struct nfs_write_data *data)
+{
+ return data->verf.committed != NFS_FILE_SYNC;
+}
+
+static inline
+int nfs_reschedule_unstable_write(struct nfs_page *req)
+{
+ if (test_bit(PG_NEED_COMMIT, &req->wb_flags)) {
+ nfs_mark_request_commit(req);
+ return 1;
+ }
+ if (test_and_clear_bit(PG_NEED_RESCHED, &req->wb_flags)) {
+ nfs_redirty_request(req);
+ return 1;
+ }
+ return 0;
+}
+#else
+static inline void
+nfs_mark_request_commit(struct nfs_page *req)
+{
+}
+
+static inline
+int nfs_write_need_commit(struct nfs_write_data *data)
+{
+ return 0;
+}
+
+static inline
+int nfs_reschedule_unstable_write(struct nfs_page *req)
+{
+ return 0;
+}
#endif
/*
req = nfs_list_entry(head->next);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
nfs_list_remove_request(req);
+ clear_bit(PG_NEED_COMMIT, &(req)->wb_flags);
nfs_inode_remove_request(req);
nfs_unlock_request(req);
}
static void nfs_writepage_release(struct nfs_page *req)
{
- nfs_end_page_writeback(req->wb_page);
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
- if (!PageError(req->wb_page)) {
- if (NFS_NEED_RESCHED(req)) {
- nfs_redirty_request(req);
- goto out;
- } else if (NFS_NEED_COMMIT(req)) {
- nfs_mark_request_commit(req);
- goto out;
- }
- }
- nfs_inode_remove_request(req);
-
-out:
- nfs_clear_commit(req);
- nfs_clear_reschedule(req);
-#else
- nfs_inode_remove_request(req);
-#endif
+ if (PageError(req->wb_page) || !nfs_reschedule_unstable_write(req)) {
+ nfs_end_page_writeback(req->wb_page);
+ nfs_inode_remove_request(req);
+ } else
+ nfs_end_page_writeback(req->wb_page);
nfs_clear_page_writeback(req);
}
list_del(&data->pages);
nfs_writedata_release(data);
}
- nfs_end_page_writeback(req->wb_page);
nfs_redirty_request(req);
+ nfs_end_page_writeback(req->wb_page);
nfs_clear_page_writeback(req);
return -ENOMEM;
}
while (!list_empty(head)) {
struct nfs_page *req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
- nfs_end_page_writeback(req->wb_page);
nfs_redirty_request(req);
+ nfs_end_page_writeback(req->wb_page);
nfs_clear_page_writeback(req);
}
return -ENOMEM;
while (!list_empty(head)) {
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
- nfs_end_page_writeback(req->wb_page);
nfs_redirty_request(req);
+ nfs_end_page_writeback(req->wb_page);
nfs_clear_page_writeback(req);
}
return error;
nfs_set_pageerror(page);
req->wb_context->error = task->tk_status;
dprintk(", error = %d\n", task->tk_status);
- } else {
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
- if (data->verf.committed < NFS_FILE_SYNC) {
- if (!NFS_NEED_COMMIT(req)) {
- nfs_defer_commit(req);
- memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
- dprintk(" defer commit\n");
- } else if (memcmp(&req->wb_verf, &data->verf, sizeof(req->wb_verf))) {
- nfs_defer_reschedule(req);
- dprintk(" server reboot detected\n");
- }
- } else
-#endif
- dprintk(" OK\n");
+ goto out;
}
+ if (nfs_write_need_commit(data)) {
+ spinlock_t *req_lock = &NFS_I(page->mapping->host)->req_lock;
+
+ spin_lock(req_lock);
+ if (test_bit(PG_NEED_RESCHED, &req->wb_flags)) {
+ /* Do nothing we need to resend the writes */
+ } else if (!test_and_set_bit(PG_NEED_COMMIT, &req->wb_flags)) {
+ memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
+ dprintk(" defer commit\n");
+ } else if (memcmp(&req->wb_verf, &data->verf, sizeof(req->wb_verf))) {
+ set_bit(PG_NEED_RESCHED, &req->wb_flags);
+ clear_bit(PG_NEED_COMMIT, &req->wb_flags);
+ dprintk(" server reboot detected\n");
+ }
+ spin_unlock(req_lock);
+ } else
+ dprintk(" OK\n");
+
+out:
if (atomic_dec_and_test(&req->wb_complete))
nfs_writepage_release(req);
}
if (task->tk_status < 0) {
nfs_set_pageerror(page);
req->wb_context->error = task->tk_status;
- nfs_end_page_writeback(page);
- nfs_inode_remove_request(req);
dprintk(", error = %d\n", task->tk_status);
- goto next;
+ goto remove_request;
}
- nfs_end_page_writeback(page);
-#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
- if (data->args.stable != NFS_UNSTABLE || data->verf.committed == NFS_FILE_SYNC) {
- nfs_inode_remove_request(req);
- dprintk(" OK\n");
+ if (nfs_write_need_commit(data)) {
+ memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
+ nfs_mark_request_commit(req);
+ nfs_end_page_writeback(page);
+ dprintk(" marked for commit\n");
goto next;
}
- memcpy(&req->wb_verf, &data->verf, sizeof(req->wb_verf));
- nfs_mark_request_commit(req);
- dprintk(" marked for commit\n");
-#else
+ dprintk(" OK\n");
+remove_request:
+ nfs_end_page_writeback(page);
nfs_inode_remove_request(req);
-#endif
next:
nfs_clear_page_writeback(req);
}
while (!list_empty(&data->pages)) {
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
+ clear_bit(PG_NEED_COMMIT, &(req)->wb_flags);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
dprintk("NFS: commit (%s/%Ld %d@%Ld)",
int nfs_set_page_dirty(struct page *page)
{
+ spinlock_t *req_lock = &NFS_I(page->mapping->host)->req_lock;
struct nfs_page *req;
+ int ret;
- req = nfs_page_find_request(page);
+ spin_lock(req_lock);
+ req = nfs_page_find_request_locked(page);
if (req != NULL) {
/* Mark any existing write requests for flushing */
- set_bit(PG_NEED_FLUSH, &req->wb_flags);
+ ret = !test_and_set_bit(PG_NEED_FLUSH, &req->wb_flags);
+ spin_unlock(req_lock);
nfs_release_request(req);
+ return ret;
}
- return __set_page_dirty_nobuffers(page);
+ ret = __set_page_dirty_nobuffers(page);
+ spin_unlock(req_lock);
+ return ret;
}
static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
*prefix);
-static struct dentry *create_xa_root(struct super_block *sb)
+/* Returns the dentry referring to the root of the extended attribute
+ * directory tree. If it has already been retrieved, it is used. If it
+ * hasn't been created and the flags indicate creation is allowed, we
+ * attempt to create it. On error, we return a pointer-encoded error.
+ */
+static struct dentry *get_xa_root(struct super_block *sb, int flags)
{
struct dentry *privroot = dget(REISERFS_SB(sb)->priv_root);
struct dentry *xaroot;
/* This needs to be created at mount-time */
if (!privroot)
- return ERR_PTR(-EOPNOTSUPP);
+ return ERR_PTR(-ENODATA);
- xaroot = lookup_one_len(XAROOT_NAME, privroot, strlen(XAROOT_NAME));
- if (IS_ERR(xaroot)) {
+ mutex_lock(&privroot->d_inode->i_mutex);
+ if (REISERFS_SB(sb)->xattr_root) {
+ xaroot = dget(REISERFS_SB(sb)->xattr_root);
goto out;
- } else if (!xaroot->d_inode) {
- int err;
- mutex_lock(&privroot->d_inode->i_mutex);
- err =
- privroot->d_inode->i_op->mkdir(privroot->d_inode, xaroot,
- 0700);
- mutex_unlock(&privroot->d_inode->i_mutex);
-
- if (err) {
- dput(xaroot);
- dput(privroot);
- return ERR_PTR(err);
- }
- REISERFS_SB(sb)->xattr_root = dget(xaroot);
}
- out:
- dput(privroot);
- return xaroot;
-}
-
-/* This will return a dentry, or error, refering to the xa root directory.
- * If the xa root doesn't exist yet, the dentry will be returned without
- * an associated inode. This dentry can be used with ->mkdir to create
- * the xa directory. */
-static struct dentry *__get_xa_root(struct super_block *s)
-{
- struct dentry *privroot = dget(REISERFS_SB(s)->priv_root);
- struct dentry *xaroot = NULL;
-
- if (IS_ERR(privroot) || !privroot)
- return privroot;
-
xaroot = lookup_one_len(XAROOT_NAME, privroot, strlen(XAROOT_NAME));
if (IS_ERR(xaroot)) {
goto out;
} else if (!xaroot->d_inode) {
- dput(xaroot);
- xaroot = NULL;
- goto out;
+ int err = -ENODATA;
+ if (flags == 0 || flags & XATTR_CREATE)
+ err = privroot->d_inode->i_op->mkdir(privroot->d_inode,
+ xaroot, 0700);
+ if (err) {
+ dput(xaroot);
+ xaroot = ERR_PTR(err);
+ goto out;
+ }
}
-
- REISERFS_SB(s)->xattr_root = dget(xaroot);
+ REISERFS_SB(sb)->xattr_root = dget(xaroot);
out:
+ mutex_unlock(&privroot->d_inode->i_mutex);
dput(privroot);
return xaroot;
}
-/* Returns the dentry (or NULL) referring to the root of the extended
- * attribute directory tree. If it has already been retrieved, it is used.
- * Otherwise, we attempt to retrieve it from disk. It may also return
- * a pointer-encoded error.
- */
-static inline struct dentry *get_xa_root(struct super_block *s)
-{
- struct dentry *dentry = dget(REISERFS_SB(s)->xattr_root);
-
- if (!dentry)
- dentry = __get_xa_root(s);
-
- return dentry;
-}
-
/* Opens the directory corresponding to the inode's extended attribute store.
* If flags allow, the tree to the directory may be created. If creation is
* prohibited, -ENODATA is returned. */
struct dentry *xaroot, *xadir;
char namebuf[17];
- xaroot = get_xa_root(inode->i_sb);
- if (IS_ERR(xaroot)) {
+ xaroot = get_xa_root(inode->i_sb, flags);
+ if (IS_ERR(xaroot))
return xaroot;
- } else if (!xaroot) {
- if (flags == 0 || flags & XATTR_CREATE) {
- xaroot = create_xa_root(inode->i_sb);
- if (IS_ERR(xaroot))
- return xaroot;
- }
- if (!xaroot)
- return ERR_PTR(-ENODATA);
- }
/* ok, we have xaroot open */
-
snprintf(namebuf, sizeof(namebuf), "%X.%X",
le32_to_cpu(INODE_PKEY(inode)->k_objectid),
inode->i_generation);
/* Leftovers besides . and .. -- that's not good. */
if (dir->d_inode->i_nlink <= 2) {
- root = get_xa_root(inode->i_sb);
+ root = get_xa_root(inode->i_sb, XATTR_REPLACE);
reiserfs_write_lock_xattrs(inode->i_sb);
err = vfs_rmdir(root->d_inode, dir);
reiserfs_write_unlock_xattrs(inode->i_sb);
#define SO_PEERSEC 30
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 19
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP 0x8906 /* Get stamp - linux-specific */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _ASM_ALPHA_SOCKIOS_H */
? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \
: __memsetw((s),(c),(n)))
-extern int strcasecmp(const char *, const char *);
-
#endif /* __KERNEL__ */
#endif /* __ALPHA_STRING_H__ */
#define __ASM_ARM_DIV64
#include <asm/system.h>
+#include <linux/types.h>
/*
* The semantics of do_div() are:
#endif
+extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
+
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
--- /dev/null
+#ifndef __ASM_AVR32_ARCH_AT32AP_IO_H
+#define __ASM_AVR32_ARCH_AT32AP_IO_H
+
+/* For "bizarre" halfword swapping */
+#include <linux/byteorder/swabb.h>
+
+#if defined(CONFIG_AP7000_32_BIT_SMC)
+# define __swizzle_addr_b(addr) (addr ^ 3UL)
+# define __swizzle_addr_w(addr) (addr ^ 2UL)
+# define __swizzle_addr_l(addr) (addr)
+# define ioswabb(a, x) (x)
+# define ioswabw(a, x) (x)
+# define ioswabl(a, x) (x)
+# define __mem_ioswabb(a, x) (x)
+# define __mem_ioswabw(a, x) swab16(x)
+# define __mem_ioswabl(a, x) swab32(x)
+#elif defined(CONFIG_AP7000_16_BIT_SMC)
+# define __swizzle_addr_b(addr) (addr ^ 1UL)
+# define __swizzle_addr_w(addr) (addr)
+# define __swizzle_addr_l(addr) (addr)
+# define ioswabb(a, x) (x)
+# define ioswabw(a, x) (x)
+# define ioswabl(a, x) swahw32(x)
+# define __mem_ioswabb(a, x) (x)
+# define __mem_ioswabw(a, x) swab16(x)
+# define __mem_ioswabl(a, x) swahb32(x)
+#else
+# define __swizzle_addr_b(addr) (addr)
+# define __swizzle_addr_w(addr) (addr)
+# define __swizzle_addr_l(addr) (addr)
+# define ioswabb(a, x) (x)
+# define ioswabw(a, x) swab16(x)
+# define ioswabl(a, x) swab32(x)
+# define __mem_ioswabb(a, x) (x)
+# define __mem_ioswabw(a, x) (x)
+# define __mem_ioswabl(a, x) (x)
+#endif
+
+#endif /* __ASM_AVR32_ARCH_AT32AP_IO_H */
*/
unsigned int nwe_controlled:1;
+ /*
+ * 0: NWAIT is disabled
+ * 1: Reserved
+ * 2: NWAIT is frozen mode
+ * 3: NWAIT in ready mode
+ */
+ unsigned int nwait_mode:2;
+
/*
* 0: Byte select access type
* 1: Byte write access type
*/
unsigned int byte_write:1;
+
+ /*
+ * Number of clock cycles before data is released after
+ * the rising edge of the read controlling signal
+ *
+ * Total cycles from SMC is tdf_cycles + 1
+ */
+ unsigned int tdf_cycles:4;
+
+ /*
+ * 0: TDF optimization disabled
+ * 1: TDF optimization enabled
+ */
+ unsigned int tdf_mode:1;
};
extern int smc_set_configuration(int cs, const struct smc_config *config);
--- /dev/null
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_AVR32_ARCH_AT32AP_TIME_H
+#define _ASM_AVR32_ARCH_AT32AP_TIME_H
+
+#include <linux/platform_device.h>
+
+extern struct irqaction timer_irqaction;
+extern struct platform_device at32_systc0_device;
+extern void local_timer_interrupt(int irq, void *dev_id);
+
+#define TIMER_BCR 0x000000c0
+#define TIMER_BCR_SYNC 0
+#define TIMER_BMR 0x000000c4
+#define TIMER_BMR_TC0XC0S 0
+#define TIMER_BMR_TC1XC1S 2
+#define TIMER_BMR_TC2XC2S 4
+#define TIMER_CCR 0x00000000
+#define TIMER_CCR_CLKDIS 1
+#define TIMER_CCR_CLKEN 0
+#define TIMER_CCR_SWTRG 2
+#define TIMER_CMR 0x00000004
+#define TIMER_CMR_ABETRG 10
+#define TIMER_CMR_ACPA 16
+#define TIMER_CMR_ACPC 18
+#define TIMER_CMR_AEEVT 20
+#define TIMER_CMR_ASWTRG 22
+#define TIMER_CMR_BCPB 24
+#define TIMER_CMR_BCPC 26
+#define TIMER_CMR_BEEVT 28
+#define TIMER_CMR_BSWTRG 30
+#define TIMER_CMR_BURST 4
+#define TIMER_CMR_CLKI 3
+#define TIMER_CMR_CPCDIS 7
+#define TIMER_CMR_CPCSTOP 6
+#define TIMER_CMR_CPCTRG 14
+#define TIMER_CMR_EEVT 10
+#define TIMER_CMR_EEVTEDG 8
+#define TIMER_CMR_ENETRG 12
+#define TIMER_CMR_ETRGEDG 8
+#define TIMER_CMR_LDBDIS 7
+#define TIMER_CMR_LDBSTOP 6
+#define TIMER_CMR_LDRA 16
+#define TIMER_CMR_LDRB 18
+#define TIMER_CMR_TCCLKS 0
+#define TIMER_CMR_WAVE 15
+#define TIMER_CMR_WAVSEL 13
+#define TIMER_CV 0x00000010
+#define TIMER_CV_CV 0
+#define TIMER_IDR 0x00000028
+#define TIMER_IDR_COVFS 0
+#define TIMER_IDR_CPAS 2
+#define TIMER_IDR_CPBS 3
+#define TIMER_IDR_CPCS 4
+#define TIMER_IDR_ETRGS 7
+#define TIMER_IDR_LDRAS 5
+#define TIMER_IDR_LDRBS 6
+#define TIMER_IDR_LOVRS 1
+#define TIMER_IER 0x00000024
+#define TIMER_IER_COVFS 0
+#define TIMER_IER_CPAS 2
+#define TIMER_IER_CPBS 3
+#define TIMER_IER_CPCS 4
+#define TIMER_IER_ETRGS 7
+#define TIMER_IER_LDRAS 5
+#define TIMER_IER_LDRBS 6
+#define TIMER_IER_LOVRS 1
+#define TIMER_IMR 0x0000002c
+#define TIMER_IMR_COVFS 0
+#define TIMER_IMR_CPAS 2
+#define TIMER_IMR_CPBS 3
+#define TIMER_IMR_CPCS 4
+#define TIMER_IMR_ETRGS 7
+#define TIMER_IMR_LDRAS 5
+#define TIMER_IMR_LDRBS 6
+#define TIMER_IMR_LOVRS 1
+#define TIMER_RA 0x00000014
+#define TIMER_RA_RA 0
+#define TIMER_RB 0x00000018
+#define TIMER_RB_RB 0
+#define TIMER_RC 0x0000001c
+#define TIMER_RC_RC 0
+#define TIMER_SR 0x00000020
+#define TIMER_SR_CLKSTA 16
+#define TIMER_SR_COVFS 0
+#define TIMER_SR_CPAS 2
+#define TIMER_SR_CPBS 3
+#define TIMER_SR_CPCS 4
+#define TIMER_SR_ETRGS 7
+#define TIMER_SR_LDRAS 5
+#define TIMER_SR_LDRBS 6
+#define TIMER_SR_LOVRS 1
+#define TIMER_SR_MTIOA 17
+#define TIMER_SR_MTIOB 18
+
+/* Bit manipulation macros */
+#define TIMER_BIT(name) (1 << TIMER_##name)
+#define TIMER_BF(name,value) ((value) << TIMER_##name)
+
+/* Register access macros */
+#define timer_read(port,instance,reg) \
+ __raw_readl(port + (0x40 * instance) + TIMER_##reg)
+#define timer_write(port,instance,reg,value) \
+ __raw_writel((value), port + (0x40 * instance) + TIMER_##reg)
+
+#endif /* _ASM_AVR32_ARCH_AT32AP_TIME_H */
}
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
#define atomic_sub(i, v) (void)atomic_sub_return(i, v)
#define atomic_add(i, v) (void)atomic_add_return(i, v)
#ifdef CONFIG_DEBUG_BUGVERBOSE
-#define BUG() \
- do { \
- asm volatile(".hword %0\n\t" \
- ".hword %1\n\t" \
- ".long %2" \
- : \
- : "n"(AVR32_BUG_OPCODE), \
- "i"(__LINE__), "X"(__FILE__)); \
- } while (0)
+#define _BUG_OR_WARN(flags) \
+ asm volatile( \
+ "1: .hword %0\n" \
+ " .section __bug_table,\"a\",@progbits\n" \
+ "2: .long 1b\n" \
+ " .long %1\n" \
+ " .short %2\n" \
+ " .short %3\n" \
+ " .org 2b + %4\n" \
+ " .previous" \
+ : \
+ : "i"(AVR32_BUG_OPCODE), "i"(__FILE__), \
+ "i"(__LINE__), "i"(flags), \
+ "i"(sizeof(struct bug_entry)))
#else
+#define _BUG_OR_WARN(flags) \
+ asm volatile( \
+ "1: .hword %0\n" \
+ " .section __bug_table,\"a\",@progbits\n" \
+ "2: .long 1b\n" \
+ " .short %1\n" \
+ " .org 2b + %2\n" \
+ " .previous" \
+ : \
+ : "i"(AVR32_BUG_OPCODE), "i"(flags), \
+ "i"(sizeof(struct bug_entry)))
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
#define BUG() \
do { \
- asm volatile(".hword %0\n\t" \
- : : "n"(AVR32_BUG_OPCODE)); \
+ _BUG_OR_WARN(0); \
+ for (;;); \
} while (0)
-#endif /* CONFIG_DEBUG_BUGVERBOSE */
+#define WARN_ON(condition) \
+ ({ \
+ typeof(condition) __ret_warn_on = (condition); \
+ if (unlikely(__ret_warn_on)) \
+ _BUG_OR_WARN(BUGFLAG_WARNING); \
+ unlikely(__ret_warn_on); \
+ })
#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
#endif /* CONFIG_BUG */
#ifndef __ASM_AVR32_IO_H
#define __ASM_AVR32_IO_H
+#include <linux/kernel.h>
#include <linux/string.h>
-
-#ifdef __KERNEL__
+#include <linux/types.h>
#include <asm/addrspace.h>
#include <asm/byteorder.h>
+#include <asm/arch/io.h>
+
/* virt_to_phys will only work when address is in P1 or P2 */
static __inline__ unsigned long virt_to_phys(volatile void *address)
{
extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen);
extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
-static inline void writeb(unsigned char b, volatile void __iomem *addr)
+static inline void __raw_writeb(u8 v, volatile void __iomem *addr)
{
- *(volatile unsigned char __force *)addr = b;
+ *(volatile u8 __force *)addr = v;
}
-static inline void writew(unsigned short b, volatile void __iomem *addr)
+static inline void __raw_writew(u16 v, volatile void __iomem *addr)
{
- *(volatile unsigned short __force *)addr = b;
+ *(volatile u16 __force *)addr = v;
}
-static inline void writel(unsigned int b, volatile void __iomem *addr)
+static inline void __raw_writel(u32 v, volatile void __iomem *addr)
{
- *(volatile unsigned int __force *)addr = b;
+ *(volatile u32 __force *)addr = v;
}
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-static inline unsigned char readb(const volatile void __iomem *addr)
+static inline u8 __raw_readb(const volatile void __iomem *addr)
{
- return *(const volatile unsigned char __force *)addr;
+ return *(const volatile u8 __force *)addr;
}
-static inline unsigned short readw(const volatile void __iomem *addr)
+static inline u16 __raw_readw(const volatile void __iomem *addr)
{
- return *(const volatile unsigned short __force *)addr;
+ return *(const volatile u16 __force *)addr;
}
-static inline unsigned int readl(const volatile void __iomem *addr)
+static inline u32 __raw_readl(const volatile void __iomem *addr)
{
- return *(const volatile unsigned int __force *)addr;
+ return *(const volatile u32 __force *)addr;
+}
+
+/* Convert I/O port address to virtual address */
+#ifndef __io
+# define __io(p) ((void *)phys_to_uncached(p))
+#endif
+
+/*
+ * Not really sure about the best way to slow down I/O on
+ * AVR32. Defining it as a no-op until we have an actual test case.
+ */
+#define SLOW_DOWN_IO do { } while (0)
+
+#define __BUILD_MEMORY_SINGLE(pfx, bwl, type) \
+static inline void \
+pfx##write##bwl(type val, volatile void __iomem *addr) \
+{ \
+ volatile type *__addr; \
+ type __val; \
+ \
+ __addr = (void *)__swizzle_addr_##bwl((unsigned long)(addr)); \
+ __val = pfx##ioswab##bwl(__addr, val); \
+ \
+ BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \
+ \
+ *__addr = __val; \
+} \
+ \
+static inline type pfx##read##bwl(const volatile void __iomem *addr) \
+{ \
+ volatile type *__addr; \
+ type __val; \
+ \
+ __addr = (void *)__swizzle_addr_##bwl((unsigned long)(addr)); \
+ \
+ BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \
+ \
+ __val = *__addr; \
+ return pfx##ioswab##bwl(__addr, __val); \
+}
+
+#define __BUILD_IOPORT_SINGLE(pfx, bwl, type, p, slow) \
+static inline void pfx##out##bwl##p(type val, unsigned long port) \
+{ \
+ volatile type *__addr; \
+ type __val; \
+ \
+ __addr = __io(__swizzle_addr_##bwl(port)); \
+ __val = pfx##ioswab##bwl(__addr, val); \
+ \
+ BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \
+ \
+ *__addr = __val; \
+ slow; \
+} \
+ \
+static inline type pfx##in##bwl##p(unsigned long port) \
+{ \
+ volatile type *__addr; \
+ type __val; \
+ \
+ __addr = __io(__swizzle_addr_##bwl(port)); \
+ \
+ BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long)); \
+ \
+ __val = *__addr; \
+ slow; \
+ \
+ return pfx##ioswab##bwl(__addr, __val); \
+}
+
+#define __BUILD_MEMORY_PFX(bus, bwl, type) \
+ __BUILD_MEMORY_SINGLE(bus, bwl, type)
+
+#define BUILDIO_MEM(bwl, type) \
+ __BUILD_MEMORY_PFX(, bwl, type) \
+ __BUILD_MEMORY_PFX(__mem_, bwl, type)
+
+#define __BUILD_IOPORT_PFX(bus, bwl, type) \
+ __BUILD_IOPORT_SINGLE(bus, bwl, type, ,) \
+ __BUILD_IOPORT_SINGLE(bus, bwl, type, _p, SLOW_DOWN_IO)
+
+#define BUILDIO_IOPORT(bwl, type) \
+ __BUILD_IOPORT_PFX(, bwl, type) \
+ __BUILD_IOPORT_PFX(__mem_, bwl, type)
+
+BUILDIO_MEM(b, u8)
+BUILDIO_MEM(w, u16)
+BUILDIO_MEM(l, u32)
+
+BUILDIO_IOPORT(b, u8)
+BUILDIO_IOPORT(w, u16)
+BUILDIO_IOPORT(l, u32)
+
+#define readb_relaxed readb
+#define readw_relaxed readw
+#define readl_relaxed readl
+
+#define __BUILD_MEMORY_STRING(bwl, type) \
+static inline void writes##bwl(volatile void __iomem *addr, \
+ const void *data, unsigned int count) \
+{ \
+ const type *__data = data; \
+ \
+ while (count--) \
+ __mem_write##bwl(*__data++, addr); \
+} \
+ \
+static inline void reads##bwl(const volatile void __iomem *addr, \
+ void *data, unsigned int count) \
+{ \
+ type *__data = data; \
+ \
+ while (count--) \
+ *__data++ = __mem_read##bwl(addr); \
}
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-#define writesb(p, d, l) __raw_writesb((unsigned int)p, d, l)
-#define writesw(p, d, l) __raw_writesw((unsigned int)p, d, l)
-#define writesl(p, d, l) __raw_writesl((unsigned int)p, d, l)
+#define __BUILD_IOPORT_STRING(bwl, type) \
+static inline void outs##bwl(unsigned long port, const void *data, \
+ unsigned int count) \
+{ \
+ const type *__data = data; \
+ \
+ while (count--) \
+ __mem_out##bwl(*__data++, port); \
+} \
+ \
+static inline void ins##bwl(unsigned long port, void *data, \
+ unsigned int count) \
+{ \
+ type *__data = data; \
+ \
+ while (count--) \
+ *__data++ = __mem_in##bwl(port); \
+}
-#define readsb(p, d, l) __raw_readsb((unsigned int)p, d, l)
-#define readsw(p, d, l) __raw_readsw((unsigned int)p, d, l)
-#define readsl(p, d, l) __raw_readsl((unsigned int)p, d, l)
+#define BUILDSTRING(bwl, type) \
+ __BUILD_MEMORY_STRING(bwl, type) \
+ __BUILD_IOPORT_STRING(bwl, type)
+BUILDSTRING(b, u8)
+BUILDSTRING(w, u16)
+BUILDSTRING(l, u32)
/*
* io{read,write}{8,16,32} macros in both le (for PCI style consumers) and native be
*/
#ifndef ioread8
-#define ioread8(p) ({ unsigned int __v = __raw_readb(p); __v; })
+#define ioread8(p) ((unsigned int)readb(p))
-#define ioread16(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(p)); __v; })
-#define ioread16be(p) ({ unsigned int __v = be16_to_cpu(__raw_readw(p)); __v; })
+#define ioread16(p) ((unsigned int)readw(p))
+#define ioread16be(p) ((unsigned int)__raw_readw(p))
-#define ioread32(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(p)); __v; })
-#define ioread32be(p) ({ unsigned int __v = be32_to_cpu(__raw_readl(p)); __v; })
+#define ioread32(p) ((unsigned int)readl(p))
+#define ioread32be(p) ((unsigned int)__raw_readl(p))
-#define iowrite8(v,p) __raw_writeb(v, p)
+#define iowrite8(v,p) writeb(v, p)
-#define iowrite16(v,p) __raw_writew(cpu_to_le16(v), p)
-#define iowrite16be(v,p) __raw_writew(cpu_to_be16(v), p)
+#define iowrite16(v,p) writew(v, p)
+#define iowrite16be(v,p) __raw_writew(v, p)
-#define iowrite32(v,p) __raw_writel(cpu_to_le32(v), p)
-#define iowrite32be(v,p) __raw_writel(cpu_to_be32(v), p)
+#define iowrite32(v,p) writel(v, p)
+#define iowrite32be(v,p) __raw_writel(v, p)
-#define ioread8_rep(p,d,c) __raw_readsb(p,d,c)
-#define ioread16_rep(p,d,c) __raw_readsw(p,d,c)
-#define ioread32_rep(p,d,c) __raw_readsl(p,d,c)
+#define ioread8_rep(p,d,c) readsb(p,d,c)
+#define ioread16_rep(p,d,c) readsw(p,d,c)
+#define ioread32_rep(p,d,c) readsl(p,d,c)
-#define iowrite8_rep(p,s,c) __raw_writesb(p,s,c)
-#define iowrite16_rep(p,s,c) __raw_writesw(p,s,c)
-#define iowrite32_rep(p,s,c) __raw_writesl(p,s,c)
+#define iowrite8_rep(p,s,c) writesb(p,s,c)
+#define iowrite16_rep(p,s,c) writesw(p,s,c)
+#define iowrite32_rep(p,s,c) writesl(p,s,c)
#endif
-
-/*
- * These two are only here because ALSA _thinks_ it needs them...
- */
static inline void memcpy_fromio(void * to, const volatile void __iomem *from,
unsigned long count)
{
- char *p = to;
- while (count) {
- count--;
- *p = readb(from);
- p++;
- from++;
- }
+ memcpy(to, (const void __force *)from, count);
}
static inline void memcpy_toio(volatile void __iomem *to, const void * from,
unsigned long count)
{
- const char *p = from;
- while (count) {
- count--;
- writeb(*p, to);
- p++;
- to++;
- }
+ memcpy((void __force *)to, from, count);
}
static inline void memset_io(volatile void __iomem *addr, unsigned char val,
memset((void __force *)addr, val, count);
}
-/*
- * Bad read/write accesses...
- */
-extern void __readwrite_bug(const char *fn);
-
#define IO_SPACE_LIMIT 0xffffffff
-/* Convert I/O port address to virtual address */
-#define __io(p) ((void __iomem *)phys_to_uncached(p))
-
-/*
- * IO port access primitives
- * -------------------------
- *
- * The AVR32 doesn't have special IO access instructions; all IO is memory
- * mapped. Note that these are defined to perform little endian accesses
- * only. Their primary purpose is to access PCI and ISA peripherals.
- *
- * Note that for a big endian machine, this implies that the following
- * big endian mode connectivity is in place.
- *
- * The machine specific io.h include defines __io to translate an "IO"
- * address to a memory address.
- *
- * Note that we prevent GCC re-ordering or caching values in expressions
- * by introducing sequence points into the in*() definitions. Note that
- * __raw_* do not guarantee this behaviour.
- *
- * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space.
- */
-#define outb(v, p) __raw_writeb(v, __io(p))
-#define outw(v, p) __raw_writew(cpu_to_le16(v), __io(p))
-#define outl(v, p) __raw_writel(cpu_to_le32(v), __io(p))
-
-#define inb(p) __raw_readb(__io(p))
-#define inw(p) le16_to_cpu(__raw_readw(__io(p)))
-#define inl(p) le32_to_cpu(__raw_readl(__io(p)))
-
-static inline void __outsb(unsigned long port, void *addr, unsigned int count)
-{
- while (count--) {
- outb(*(u8 *)addr, port);
- addr++;
- }
-}
-
-static inline void __insb(unsigned long port, void *addr, unsigned int count)
-{
- while (count--) {
- *(u8 *)addr = inb(port);
- addr++;
- }
-}
-
-static inline void __outsw(unsigned long port, void *addr, unsigned int count)
-{
- while (count--) {
- outw(*(u16 *)addr, port);
- addr += 2;
- }
-}
-
-static inline void __insw(unsigned long port, void *addr, unsigned int count)
-{
- while (count--) {
- *(u16 *)addr = inw(port);
- addr += 2;
- }
-}
-
-static inline void __outsl(unsigned long port, void *addr, unsigned int count)
-{
- while (count--) {
- outl(*(u32 *)addr, port);
- addr += 4;
- }
-}
-
-static inline void __insl(unsigned long port, void *addr, unsigned int count)
-{
- while (count--) {
- *(u32 *)addr = inl(port);
- addr += 4;
- }
-}
-
-#define outsb(port, addr, count) __outsb(port, addr, count)
-#define insb(port, addr, count) __insb(port, addr, count)
-#define outsw(port, addr, count) __outsw(port, addr, count)
-#define insw(port, addr, count) __insw(port, addr, count)
-#define outsl(port, addr, count) __outsl(port, addr, count)
-#define insl(port, addr, count) __insl(port, addr, count)
-
extern void __iomem *__ioremap(unsigned long offset, size_t size,
unsigned long flags);
extern void __iounmap(void __iomem *addr);
*/
#define xlate_dev_kmem_ptr(p) p
-#endif /* __KERNEL__ */
-
#endif /* __ASM_AVR32_IO_H */
TLB_INVALID
};
+#define AVR32_FEATURE_RMW (1 << 0)
+#define AVR32_FEATURE_DSP (1 << 1)
+#define AVR32_FEATURE_SIMD (1 << 2)
+#define AVR32_FEATURE_OCD (1 << 3)
+#define AVR32_FEATURE_PCTR (1 << 4)
+#define AVR32_FEATURE_JAVA (1 << 5)
+#define AVR32_FEATURE_FPU (1 << 6)
+
struct avr32_cpuinfo {
struct clk *clk;
unsigned long loops_per_jiffy;
unsigned short arch_revision;
unsigned short cpu_revision;
enum tlb_config tlb_config;
+ unsigned long features;
struct cache_info icache;
struct cache_info dcache;
#define thread_saved_pc(tsk) ((tsk)->thread.cpu_context.pc)
struct pt_regs;
-void show_trace(struct task_struct *task, unsigned long *stack,
- struct pt_regs *regs);
-
extern unsigned long get_wchan(struct task_struct *p);
+extern void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl);
+extern void show_stack_log_lvl(struct task_struct *tsk, unsigned long sp,
+ struct pt_regs *regs, const char *log_lvl);
#define KSTK_EIP(tsk) ((tsk)->thread.cpu_context.pc)
#define KSTK_ESP(tsk) ((tsk)->thread.cpu_context.ksp)
#define for_each_tag(t,base) \
for (t = base; t->hdr.size; t = tag_next(t))
-extern struct tag_mem_range *mem_phys;
-extern struct tag_mem_range *mem_reserved;
-extern struct tag_mem_range *mem_ramdisk;
-
extern struct tag *bootloader_tags;
-extern void setup_bootmem(void);
-extern void setup_processor(void);
-extern void board_setup_fbmem(unsigned long fbmem_start,
- unsigned long fbmem_size);
+extern resource_size_t fbmem_start;
+extern resource_size_t fbmem_size;
-/* Chip-specific hook to enable the use of SDRAM */
-void chip_enable_sdram(void);
+void setup_processor(void);
#endif /* !__ASSEMBLY__ */
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* __ASM_AVR32_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* __ASM_AVR32_SOCKIOS_H */
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#ifndef __ASM_AVR32_SYSREG_H__
-#define __ASM_AVR32_SYSREG_H__
+#ifndef __ASM_AVR32_SYSREG_H
+#define __ASM_AVR32_SYSREG_H
/* sysreg register offsets */
-#define SYSREG_SR 0x0000
-#define SYSREG_EVBA 0x0004
-#define SYSREG_ACBA 0x0008
-#define SYSREG_CPUCR 0x000c
-#define SYSREG_ECR 0x0010
-#define SYSREG_RSR_SUP 0x0014
-#define SYSREG_RSR_INT0 0x0018
-#define SYSREG_RSR_INT1 0x001c
-#define SYSREG_RSR_INT2 0x0020
-#define SYSREG_RSR_INT3 0x0024
-#define SYSREG_RSR_EX 0x0028
-#define SYSREG_RSR_NMI 0x002c
-#define SYSREG_RSR_DBG 0x0030
-#define SYSREG_RAR_SUP 0x0034
-#define SYSREG_RAR_INT0 0x0038
-#define SYSREG_RAR_INT1 0x003c
-#define SYSREG_RAR_INT2 0x0040
-#define SYSREG_RAR_INT3 0x0044
-#define SYSREG_RAR_EX 0x0048
-#define SYSREG_RAR_NMI 0x004c
-#define SYSREG_RAR_DBG 0x0050
-#define SYSREG_JECR 0x0054
-#define SYSREG_JOSP 0x0058
-#define SYSREG_JAVA_LV0 0x005c
-#define SYSREG_JAVA_LV1 0x0060
-#define SYSREG_JAVA_LV2 0x0064
-#define SYSREG_JAVA_LV3 0x0068
-#define SYSREG_JAVA_LV4 0x006c
-#define SYSREG_JAVA_LV5 0x0070
-#define SYSREG_JAVA_LV6 0x0074
-#define SYSREG_JAVA_LV7 0x0078
-#define SYSREG_JTBA 0x007c
-#define SYSREG_JBCR 0x0080
-#define SYSREG_CONFIG0 0x0100
-#define SYSREG_CONFIG1 0x0104
-#define SYSREG_COUNT 0x0108
-#define SYSREG_COMPARE 0x010c
-#define SYSREG_TLBEHI 0x0110
-#define SYSREG_TLBELO 0x0114
-#define SYSREG_PTBR 0x0118
-#define SYSREG_TLBEAR 0x011c
-#define SYSREG_MMUCR 0x0120
-#define SYSREG_TLBARLO 0x0124
-#define SYSREG_TLBARHI 0x0128
-#define SYSREG_PCCNT 0x012c
-#define SYSREG_PCNT0 0x0130
-#define SYSREG_PCNT1 0x0134
-#define SYSREG_PCCR 0x0138
-#define SYSREG_BEAR 0x013c
+#define SYSREG_SR 0x0000
+#define SYSREG_EVBA 0x0004
+#define SYSREG_ACBA 0x0008
+#define SYSREG_CPUCR 0x000c
+#define SYSREG_ECR 0x0010
+#define SYSREG_RSR_SUP 0x0014
+#define SYSREG_RSR_INT0 0x0018
+#define SYSREG_RSR_INT1 0x001c
+#define SYSREG_RSR_INT2 0x0020
+#define SYSREG_RSR_INT3 0x0024
+#define SYSREG_RSR_EX 0x0028
+#define SYSREG_RSR_NMI 0x002c
+#define SYSREG_RSR_DBG 0x0030
+#define SYSREG_RAR_SUP 0x0034
+#define SYSREG_RAR_INT0 0x0038
+#define SYSREG_RAR_INT1 0x003c
+#define SYSREG_RAR_INT2 0x0040
+#define SYSREG_RAR_INT3 0x0044
+#define SYSREG_RAR_EX 0x0048
+#define SYSREG_RAR_NMI 0x004c
+#define SYSREG_RAR_DBG 0x0050
+#define SYSREG_JECR 0x0054
+#define SYSREG_JOSP 0x0058
+#define SYSREG_JAVA_LV0 0x005c
+#define SYSREG_JAVA_LV1 0x0060
+#define SYSREG_JAVA_LV2 0x0064
+#define SYSREG_JAVA_LV3 0x0068
+#define SYSREG_JAVA_LV4 0x006c
+#define SYSREG_JAVA_LV5 0x0070
+#define SYSREG_JAVA_LV6 0x0074
+#define SYSREG_JAVA_LV7 0x0078
+#define SYSREG_JTBA 0x007c
+#define SYSREG_JBCR 0x0080
+#define SYSREG_CONFIG0 0x0100
+#define SYSREG_CONFIG1 0x0104
+#define SYSREG_COUNT 0x0108
+#define SYSREG_COMPARE 0x010c
+#define SYSREG_TLBEHI 0x0110
+#define SYSREG_TLBELO 0x0114
+#define SYSREG_PTBR 0x0118
+#define SYSREG_TLBEAR 0x011c
+#define SYSREG_MMUCR 0x0120
+#define SYSREG_TLBARLO 0x0124
+#define SYSREG_TLBARHI 0x0128
+#define SYSREG_PCCNT 0x012c
+#define SYSREG_PCNT0 0x0130
+#define SYSREG_PCNT1 0x0134
+#define SYSREG_PCCR 0x0138
+#define SYSREG_BEAR 0x013c
+#define SYSREG_SABAL 0x0300
+#define SYSREG_SABAH 0x0304
+#define SYSREG_SABD 0x0308
/* Bitfields in SR */
-#define SYSREG_SR_C_OFFSET 0
-#define SYSREG_SR_C_SIZE 1
-#define SYSREG_Z_OFFSET 1
-#define SYSREG_Z_SIZE 1
-#define SYSREG_SR_N_OFFSET 2
-#define SYSREG_SR_N_SIZE 1
-#define SYSREG_SR_V_OFFSET 3
-#define SYSREG_SR_V_SIZE 1
-#define SYSREG_Q_OFFSET 4
-#define SYSREG_Q_SIZE 1
-#define SYSREG_GM_OFFSET 16
-#define SYSREG_GM_SIZE 1
-#define SYSREG_I0M_OFFSET 17
-#define SYSREG_I0M_SIZE 1
-#define SYSREG_I1M_OFFSET 18
-#define SYSREG_I1M_SIZE 1
-#define SYSREG_I2M_OFFSET 19
-#define SYSREG_I2M_SIZE 1
-#define SYSREG_I3M_OFFSET 20
-#define SYSREG_I3M_SIZE 1
-#define SYSREG_EM_OFFSET 21
-#define SYSREG_EM_SIZE 1
-#define SYSREG_M0_OFFSET 22
-#define SYSREG_M0_SIZE 1
-#define SYSREG_M1_OFFSET 23
-#define SYSREG_M1_SIZE 1
-#define SYSREG_M2_OFFSET 24
-#define SYSREG_M2_SIZE 1
-#define SYSREG_SR_D_OFFSET 26
-#define SYSREG_SR_D_SIZE 1
-#define SYSREG_DM_OFFSET 27
-#define SYSREG_DM_SIZE 1
-#define SYSREG_SR_J_OFFSET 28
-#define SYSREG_SR_J_SIZE 1
-#define SYSREG_R_OFFSET 29
-#define SYSREG_R_SIZE 1
-#define SYSREG_H_OFFSET 30
-#define SYSREG_H_SIZE 1
-
-/* Bitfields in EVBA */
-
-/* Bitfields in ACBA */
+#define SYSREG_SR_C_OFFSET 0
+#define SYSREG_SR_C_SIZE 1
+#define SYSREG_Z_OFFSET 1
+#define SYSREG_Z_SIZE 1
+#define SYSREG_SR_N_OFFSET 2
+#define SYSREG_SR_N_SIZE 1
+#define SYSREG_SR_V_OFFSET 3
+#define SYSREG_SR_V_SIZE 1
+#define SYSREG_Q_OFFSET 4
+#define SYSREG_Q_SIZE 1
+#define SYSREG_L_OFFSET 5
+#define SYSREG_L_SIZE 1
+#define SYSREG_T_OFFSET 14
+#define SYSREG_T_SIZE 1
+#define SYSREG_SR_R_OFFSET 15
+#define SYSREG_SR_R_SIZE 1
+#define SYSREG_GM_OFFSET 16
+#define SYSREG_GM_SIZE 1
+#define SYSREG_I0M_OFFSET 17
+#define SYSREG_I0M_SIZE 1
+#define SYSREG_I1M_OFFSET 18
+#define SYSREG_I1M_SIZE 1
+#define SYSREG_I2M_OFFSET 19
+#define SYSREG_I2M_SIZE 1
+#define SYSREG_I3M_OFFSET 20
+#define SYSREG_I3M_SIZE 1
+#define SYSREG_EM_OFFSET 21
+#define SYSREG_EM_SIZE 1
+#define SYSREG_M0_OFFSET 22
+#define SYSREG_M0_SIZE 1
+#define SYSREG_M1_OFFSET 23
+#define SYSREG_M1_SIZE 1
+#define SYSREG_M2_OFFSET 24
+#define SYSREG_M2_SIZE 1
+#define SYSREG_SR_D_OFFSET 26
+#define SYSREG_SR_D_SIZE 1
+#define SYSREG_DM_OFFSET 27
+#define SYSREG_DM_SIZE 1
+#define SYSREG_SR_J_OFFSET 28
+#define SYSREG_SR_J_SIZE 1
+#define SYSREG_H_OFFSET 29
+#define SYSREG_H_SIZE 1
/* Bitfields in CPUCR */
-#define SYSREG_BI_OFFSET 0
-#define SYSREG_BI_SIZE 1
-#define SYSREG_BE_OFFSET 1
-#define SYSREG_BE_SIZE 1
-#define SYSREG_FE_OFFSET 2
-#define SYSREG_FE_SIZE 1
-#define SYSREG_RE_OFFSET 3
-#define SYSREG_RE_SIZE 1
-#define SYSREG_IBE_OFFSET 4
-#define SYSREG_IBE_SIZE 1
-#define SYSREG_IEE_OFFSET 5
-#define SYSREG_IEE_SIZE 1
-
-/* Bitfields in ECR */
-#define SYSREG_ECR_OFFSET 0
-#define SYSREG_ECR_SIZE 32
-
-/* Bitfields in RSR_SUP */
-
-/* Bitfields in RSR_INT0 */
-
-/* Bitfields in RSR_INT1 */
-
-/* Bitfields in RSR_INT2 */
-
-/* Bitfields in RSR_INT3 */
-
-/* Bitfields in RSR_EX */
-
-/* Bitfields in RSR_NMI */
-
-/* Bitfields in RSR_DBG */
-
-/* Bitfields in RAR_SUP */
-
-/* Bitfields in RAR_INT0 */
-
-/* Bitfields in RAR_INT1 */
-
-/* Bitfields in RAR_INT2 */
-
-/* Bitfields in RAR_INT3 */
-
-/* Bitfields in RAR_EX */
-
-/* Bitfields in RAR_NMI */
-
-/* Bitfields in RAR_DBG */
-
-/* Bitfields in JECR */
-
-/* Bitfields in JOSP */
-
-/* Bitfields in JAVA_LV0 */
-
-/* Bitfields in JAVA_LV1 */
-
-/* Bitfields in JAVA_LV2 */
-
-/* Bitfields in JAVA_LV3 */
-
-/* Bitfields in JAVA_LV4 */
-
-/* Bitfields in JAVA_LV5 */
-
-/* Bitfields in JAVA_LV6 */
-
-/* Bitfields in JAVA_LV7 */
-
-/* Bitfields in JTBA */
-
-/* Bitfields in JBCR */
+#define SYSREG_BI_OFFSET 0
+#define SYSREG_BI_SIZE 1
+#define SYSREG_BE_OFFSET 1
+#define SYSREG_BE_SIZE 1
+#define SYSREG_FE_OFFSET 2
+#define SYSREG_FE_SIZE 1
+#define SYSREG_RE_OFFSET 3
+#define SYSREG_RE_SIZE 1
+#define SYSREG_IBE_OFFSET 4
+#define SYSREG_IBE_SIZE 1
+#define SYSREG_IEE_OFFSET 5
+#define SYSREG_IEE_SIZE 1
/* Bitfields in CONFIG0 */
-#define SYSREG_CONFIG0_D_OFFSET 1
-#define SYSREG_CONFIG0_D_SIZE 1
-#define SYSREG_CONFIG0_S_OFFSET 2
-#define SYSREG_CONFIG0_S_SIZE 1
-#define SYSREG_O_OFFSET 3
-#define SYSREG_O_SIZE 1
-#define SYSREG_P_OFFSET 4
-#define SYSREG_P_SIZE 1
-#define SYSREG_CONFIG0_J_OFFSET 5
-#define SYSREG_CONFIG0_J_SIZE 1
-#define SYSREG_F_OFFSET 6
-#define SYSREG_F_SIZE 1
-#define SYSREG_MMUT_OFFSET 7
-#define SYSREG_MMUT_SIZE 3
-#define SYSREG_AR_OFFSET 10
-#define SYSREG_AR_SIZE 3
-#define SYSREG_AT_OFFSET 13
-#define SYSREG_AT_SIZE 3
-#define SYSREG_PROCESSORREVISION_OFFSET 16
-#define SYSREG_PROCESSORREVISION_SIZE 8
-#define SYSREG_PROCESSORID_OFFSET 24
-#define SYSREG_PROCESSORID_SIZE 8
+#define SYSREG_CONFIG0_R_OFFSET 0
+#define SYSREG_CONFIG0_R_SIZE 1
+#define SYSREG_CONFIG0_D_OFFSET 1
+#define SYSREG_CONFIG0_D_SIZE 1
+#define SYSREG_CONFIG0_S_OFFSET 2
+#define SYSREG_CONFIG0_S_SIZE 1
+#define SYSREG_CONFIG0_O_OFFSET 3
+#define SYSREG_CONFIG0_O_SIZE 1
+#define SYSREG_CONFIG0_P_OFFSET 4
+#define SYSREG_CONFIG0_P_SIZE 1
+#define SYSREG_CONFIG0_J_OFFSET 5
+#define SYSREG_CONFIG0_J_SIZE 1
+#define SYSREG_CONFIG0_F_OFFSET 6
+#define SYSREG_CONFIG0_F_SIZE 1
+#define SYSREG_MMUT_OFFSET 7
+#define SYSREG_MMUT_SIZE 3
+#define SYSREG_AR_OFFSET 10
+#define SYSREG_AR_SIZE 3
+#define SYSREG_AT_OFFSET 13
+#define SYSREG_AT_SIZE 3
+#define SYSREG_PROCESSORREVISION_OFFSET 16
+#define SYSREG_PROCESSORREVISION_SIZE 8
+#define SYSREG_PROCESSORID_OFFSET 24
+#define SYSREG_PROCESSORID_SIZE 8
/* Bitfields in CONFIG1 */
-#define SYSREG_DASS_OFFSET 0
-#define SYSREG_DASS_SIZE 3
-#define SYSREG_DLSZ_OFFSET 3
-#define SYSREG_DLSZ_SIZE 3
-#define SYSREG_DSET_OFFSET 6
-#define SYSREG_DSET_SIZE 4
-#define SYSREG_IASS_OFFSET 10
-#define SYSREG_IASS_SIZE 2
-#define SYSREG_ILSZ_OFFSET 13
-#define SYSREG_ILSZ_SIZE 3
-#define SYSREG_ISET_OFFSET 16
-#define SYSREG_ISET_SIZE 4
-#define SYSREG_DMMUSZ_OFFSET 20
-#define SYSREG_DMMUSZ_SIZE 6
-#define SYSREG_IMMUSZ_OFFSET 26
-#define SYSREG_IMMUSZ_SIZE 6
-
-/* Bitfields in COUNT */
-
-/* Bitfields in COMPARE */
+#define SYSREG_DASS_OFFSET 0
+#define SYSREG_DASS_SIZE 3
+#define SYSREG_DLSZ_OFFSET 3
+#define SYSREG_DLSZ_SIZE 3
+#define SYSREG_DSET_OFFSET 6
+#define SYSREG_DSET_SIZE 4
+#define SYSREG_IASS_OFFSET 10
+#define SYSREG_IASS_SIZE 3
+#define SYSREG_ILSZ_OFFSET 13
+#define SYSREG_ILSZ_SIZE 3
+#define SYSREG_ISET_OFFSET 16
+#define SYSREG_ISET_SIZE 4
+#define SYSREG_DMMUSZ_OFFSET 20
+#define SYSREG_DMMUSZ_SIZE 6
+#define SYSREG_IMMUSZ_OFFSET 26
+#define SYSREG_IMMUSZ_SIZE 6
/* Bitfields in TLBEHI */
-#define SYSREG_ASID_OFFSET 0
-#define SYSREG_ASID_SIZE 8
-#define SYSREG_TLBEHI_I_OFFSET 8
-#define SYSREG_TLBEHI_I_SIZE 1
-#define SYSREG_TLBEHI_V_OFFSET 9
-#define SYSREG_TLBEHI_V_SIZE 1
-#define SYSREG_VPN_OFFSET 10
-#define SYSREG_VPN_SIZE 22
+#define SYSREG_ASID_OFFSET 0
+#define SYSREG_ASID_SIZE 8
+#define SYSREG_TLBEHI_I_OFFSET 8
+#define SYSREG_TLBEHI_I_SIZE 1
+#define SYSREG_TLBEHI_V_OFFSET 9
+#define SYSREG_TLBEHI_V_SIZE 1
+#define SYSREG_VPN_OFFSET 10
+#define SYSREG_VPN_SIZE 22
/* Bitfields in TLBELO */
-#define SYSREG_W_OFFSET 0
-#define SYSREG_W_SIZE 1
-#define SYSREG_TLBELO_D_OFFSET 1
-#define SYSREG_TLBELO_D_SIZE 1
-#define SYSREG_SZ_OFFSET 2
-#define SYSREG_SZ_SIZE 2
-#define SYSREG_AP_OFFSET 4
-#define SYSREG_AP_SIZE 3
-#define SYSREG_B_OFFSET 7
-#define SYSREG_B_SIZE 1
-#define SYSREG_G_OFFSET 8
-#define SYSREG_G_SIZE 1
-#define SYSREG_TLBELO_C_OFFSET 9
-#define SYSREG_TLBELO_C_SIZE 1
-#define SYSREG_PFN_OFFSET 10
-#define SYSREG_PFN_SIZE 22
-
-/* Bitfields in PTBR */
-
-/* Bitfields in TLBEAR */
+#define SYSREG_W_OFFSET 0
+#define SYSREG_W_SIZE 1
+#define SYSREG_TLBELO_D_OFFSET 1
+#define SYSREG_TLBELO_D_SIZE 1
+#define SYSREG_SZ_OFFSET 2
+#define SYSREG_SZ_SIZE 2
+#define SYSREG_AP_OFFSET 4
+#define SYSREG_AP_SIZE 3
+#define SYSREG_B_OFFSET 7
+#define SYSREG_B_SIZE 1
+#define SYSREG_G_OFFSET 8
+#define SYSREG_G_SIZE 1
+#define SYSREG_TLBELO_C_OFFSET 9
+#define SYSREG_TLBELO_C_SIZE 1
+#define SYSREG_PFN_OFFSET 10
+#define SYSREG_PFN_SIZE 22
/* Bitfields in MMUCR */
-#define SYSREG_E_OFFSET 0
-#define SYSREG_E_SIZE 1
-#define SYSREG_M_OFFSET 1
-#define SYSREG_M_SIZE 1
-#define SYSREG_MMUCR_I_OFFSET 2
-#define SYSREG_MMUCR_I_SIZE 1
-#define SYSREG_MMUCR_N_OFFSET 3
-#define SYSREG_MMUCR_N_SIZE 1
-#define SYSREG_MMUCR_S_OFFSET 4
-#define SYSREG_MMUCR_S_SIZE 1
-#define SYSREG_DLA_OFFSET 8
-#define SYSREG_DLA_SIZE 6
-#define SYSREG_DRP_OFFSET 14
-#define SYSREG_DRP_SIZE 6
-#define SYSREG_ILA_OFFSET 20
-#define SYSREG_ILA_SIZE 6
-#define SYSREG_IRP_OFFSET 26
-#define SYSREG_IRP_SIZE 6
-
-/* Bitfields in TLBARLO */
-
-/* Bitfields in TLBARHI */
-
-/* Bitfields in PCCNT */
-
-/* Bitfields in PCNT0 */
-
-/* Bitfields in PCNT1 */
+#define SYSREG_E_OFFSET 0
+#define SYSREG_E_SIZE 1
+#define SYSREG_M_OFFSET 1
+#define SYSREG_M_SIZE 1
+#define SYSREG_MMUCR_I_OFFSET 2
+#define SYSREG_MMUCR_I_SIZE 1
+#define SYSREG_MMUCR_N_OFFSET 3
+#define SYSREG_MMUCR_N_SIZE 1
+#define SYSREG_MMUCR_S_OFFSET 4
+#define SYSREG_MMUCR_S_SIZE 1
+#define SYSREG_DLA_OFFSET 8
+#define SYSREG_DLA_SIZE 6
+#define SYSREG_DRP_OFFSET 14
+#define SYSREG_DRP_SIZE 6
+#define SYSREG_ILA_OFFSET 20
+#define SYSREG_ILA_SIZE 6
+#define SYSREG_IRP_OFFSET 26
+#define SYSREG_IRP_SIZE 6
/* Bitfields in PCCR */
-
-/* Bitfields in BEAR */
+#define SYSREG_PCCR_R_OFFSET 1
+#define SYSREG_PCCR_R_SIZE 1
+#define SYSREG_PCCR_C_OFFSET 2
+#define SYSREG_PCCR_C_SIZE 1
+#define SYSREG_PCCR_S_OFFSET 3
+#define SYSREG_PCCR_S_SIZE 1
+#define SYSREG_IEC_OFFSET 4
+#define SYSREG_IEC_SIZE 1
+#define SYSREG_IE0_OFFSET 5
+#define SYSREG_IE0_SIZE 1
+#define SYSREG_IE1_OFFSET 6
+#define SYSREG_IE1_SIZE 1
+#define SYSREG_FC_OFFSET 8
+#define SYSREG_FC_SIZE 1
+#define SYSREG_F0_OFFSET 9
+#define SYSREG_F0_SIZE 1
+#define SYSREG_F1_OFFSET 10
+#define SYSREG_F1_SIZE 1
+#define SYSREG_CONF0_OFFSET 12
+#define SYSREG_CONF0_SIZE 6
+#define SYSREG_CONF1_OFFSET 18
+#define SYSREG_CONF1_SIZE 6
/* Constants for ECR */
-#define ECR_UNRECOVERABLE 0
-#define ECR_TLB_MULTIPLE 1
-#define ECR_BUS_ERROR_WRITE 2
-#define ECR_BUS_ERROR_READ 3
-#define ECR_NMI 4
-#define ECR_ADDR_ALIGN_X 5
-#define ECR_PROTECTION_X 6
-#define ECR_DEBUG 7
-#define ECR_ILLEGAL_OPCODE 8
-#define ECR_UNIMPL_INSTRUCTION 9
-#define ECR_PRIVILEGE_VIOLATION 10
-#define ECR_FPE 11
-#define ECR_COPROC_ABSENT 12
-#define ECR_ADDR_ALIGN_R 13
-#define ECR_ADDR_ALIGN_W 14
-#define ECR_PROTECTION_R 15
-#define ECR_PROTECTION_W 16
-#define ECR_DTLB_MODIFIED 17
-#define ECR_TLB_MISS_X 20
-#define ECR_TLB_MISS_R 24
-#define ECR_TLB_MISS_W 28
+#define ECR_UNRECOVERABLE 0
+#define ECR_TLB_MULTIPLE 1
+#define ECR_BUS_ERROR_WRITE 2
+#define ECR_BUS_ERROR_READ 3
+#define ECR_NMI 4
+#define ECR_ADDR_ALIGN_X 5
+#define ECR_PROTECTION_X 6
+#define ECR_DEBUG 7
+#define ECR_ILLEGAL_OPCODE 8
+#define ECR_UNIMPL_INSTRUCTION 9
+#define ECR_PRIVILEGE_VIOLATION 10
+#define ECR_FPE 11
+#define ECR_COPROC_ABSENT 12
+#define ECR_ADDR_ALIGN_R 13
+#define ECR_ADDR_ALIGN_W 14
+#define ECR_PROTECTION_R 15
+#define ECR_PROTECTION_W 16
+#define ECR_DTLB_MODIFIED 17
+#define ECR_TLB_MISS_X 20
+#define ECR_TLB_MISS_R 24
+#define ECR_TLB_MISS_W 28
/* Bit manipulation macros */
-#define SYSREG_BIT(name) (1 << SYSREG_##name##_OFFSET)
-#define SYSREG_BF(name,value) (((value) & ((1 << SYSREG_##name##_SIZE) - 1)) << SYSREG_##name##_OFFSET)
-#define SYSREG_BFEXT(name,value) (((value) >> SYSREG_##name##_OFFSET) & ((1 << SYSREG_##name##_SIZE) - 1))
-#define SYSREG_BFINS(name,value,old) (((old) & ~(((1 << SYSREG_##name##_SIZE) - 1) << SYSREG_##name##_OFFSET)) | SYSREG_BF(name,value))
+#define SYSREG_BIT(name) \
+ (1 << SYSREG_##name##_OFFSET)
+#define SYSREG_BF(name,value) \
+ (((value) & ((1 << SYSREG_##name##_SIZE) - 1)) \
+ << SYSREG_##name##_OFFSET)
+#define SYSREG_BFEXT(name,value)\
+ (((value) >> SYSREG_##name##_OFFSET) \
+ & ((1 << SYSREG_##name##_SIZE) - 1))
+#define SYSREG_BFINS(name,value,old) \
+ (((old) & ~(((1 << SYSREG_##name##_SIZE) - 1) \
+ << SYSREG_##name##_OFFSET)) \
+ | SYSREG_BF(name,value))
+/* Register access macros */
#ifdef __CHECKER__
extern unsigned long __builtin_mfsr(unsigned long reg);
extern void __builtin_mtsr(unsigned long reg, unsigned long value);
#endif
-/* Register access macros */
-#define sysreg_read(reg) __builtin_mfsr(SYSREG_##reg)
-#define sysreg_write(reg, value) __builtin_mtsr(SYSREG_##reg, value)
+#define sysreg_read(reg) __builtin_mfsr(SYSREG_##reg)
+#define sysreg_write(reg, value) __builtin_mtsr(SYSREG_##reg, value)
-#endif /* __ASM_AVR32_SYSREG_H__ */
+#endif /* __ASM_AVR32_SYSREG_H */
#define __ASM_AVR32_SYSTEM_H
#include <linux/compiler.h>
+#include <linux/linkage.h>
#include <linux/types.h>
#include <asm/ptrace.h>
sizeof(*(ptr))))
struct pt_regs;
-extern void __die(const char *, struct pt_regs *, unsigned long,
- const char *, const char *, unsigned long);
-extern void __die_if_kernel(const char *, struct pt_regs *, unsigned long,
- const char *, const char *, unsigned long);
-
-#define die(msg, regs, err) \
- __die(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
-#define die_if_kernel(msg, regs, err) \
- __die_if_kernel(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
+void NORET_TYPE die(const char *str, struct pt_regs *regs, long err);
+void _exception(long signr, struct pt_regs *regs, int code,
+ unsigned long addr);
#define arch_align_stack(x) (x)
#define TIF_SINGLE_STEP 6 /* single step after next break */
#define TIF_MEMDIE 7
#define TIF_RESTORE_SIGMASK 8 /* restore signal mask in do_signal */
+#define TIF_CPU_GOING_TO_SLEEP 9 /* CPU is entering sleep 0 mode */
#define TIF_USERSPACE 31 /* true if FS sets userspace */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SINGLE_STEP (1 << TIF_SINGLE_STEP)
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP)
/* XXX: These two masks must never span more than 16 bits! */
/* work to do on interrupt/exception return */
#define __get_user_nocheck(x, ptr, size) \
({ \
- typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \
+ unsigned long __gu_val = 0; \
int __gu_err = 0; \
\
switch (size) { \
case 1: __get_user_asm("ub", __gu_val, ptr, __gu_err); break; \
case 2: __get_user_asm("uh", __gu_val, ptr, __gu_err); break; \
case 4: __get_user_asm("w", __gu_val, ptr, __gu_err); break; \
- case 8: __get_user_asm("d", __gu_val, ptr, __gu_err); break; \
default: __gu_err = __get_user_bad(); break; \
} \
\
- x = __gu_val; \
+ x = (typeof(*(ptr)))__gu_val; \
__gu_err; \
})
#define __get_user_check(x, ptr, size) \
({ \
- typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \
+ unsigned long __gu_val = 0; \
const typeof(*(ptr)) __user * __gu_addr = (ptr); \
int __gu_err = 0; \
\
__get_user_asm("w", __gu_val, __gu_addr, \
__gu_err); \
break; \
- case 8: \
- __get_user_asm("d", __gu_val, __gu_addr, \
- __gu_err); \
- break; \
default: \
__gu_err = __get_user_bad(); \
break; \
} else { \
__gu_err = -EFAULT; \
} \
- x = __gu_val; \
+ x = (typeof(*(ptr)))__gu_val; \
__gu_err; \
})
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _ASM_SOCKIOS__ */
__rem; \
})
+static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor)
+{
+ return dividend / divisor;
+}
+
#elif BITS_PER_LONG == 32
extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
__rem; \
})
+extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
+
#else /* BITS_PER_LONG == ?? */
# error do_div() does not yet support the C64
#define pte_same(A,B) (pte_val(A) == pte_val(B))
#endif
-#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
-#define page_test_and_clear_dirty(page) (0)
+#ifndef __HAVE_ARCH_PAGE_TEST_DIRTY
+#define page_test_dirty(page) (0)
+#endif
+
+#ifndef __HAVE_ARCH_PAGE_CLEAR_DIRTY
+#define page_clear_dirty(page) do { } while (0)
+#endif
+
+#ifndef __HAVE_ARCH_PAGE_TEST_DIRTY
#define pte_maybe_dirty(pte) pte_dirty(pte)
#else
#define pte_maybe_dirty(pte) (1)
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* __ARCH_H8300_SOCKIOS__ */
#ifndef __I386_DIV64
#define __I386_DIV64
+#include <linux/types.h>
+
/*
* do_div() is NOT a C function. It wants to return
* two values (the quotient and the remainder), but
return dum2;
}
+
+extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_IA64_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _ASM_IA64_SOCKIOS_H */
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_M32R_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _ASM_M32R_SOCKIOS_H */
#ifndef _M68K_DIV64_H
#define _M68K_DIV64_H
+#include <linux/types.h>
+
/* n = n / base; return rem; */
#define do_div(n, base) ({ \
__rem; \
})
+extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
#endif /* _M68K_DIV64_H */
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* __ARCH_M68K_SOCKIOS__ */
#define BUG_ON(condition) \
do { \
- __asm__ __volatile__("tne $0, %0" : : "r" (condition)); \
+ __asm__ __volatile__("tne $0, %0, %1" \
+ : : "r" (condition), "i" (BRK_BUG)); \
} while (0)
#define HAVE_ARCH_BUG_ON
unsigned long __init run_uncached(void *func);
extern void *kmap_coherent(struct page *page, unsigned long addr);
-extern void kunmap_coherent(struct page *page);
+extern void kunmap_coherent(void);
#endif /* _ASM_CACHEFLUSH_H */
#else
"r" (proto + len),
#endif
- "r" (sum));
+ "r" ((__force unsigned long)sum));
return sum;
}
/*
* Copyright (C) 2000, 2004 Maciej W. Rozycki
- * Copyright (C) 2003 Ralf Baechle
+ * Copyright (C) 2003, 07 Ralf Baechle (ralf@linux-mips.org)
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#ifndef _ASM_DIV64_H
#define _ASM_DIV64_H
+#include <linux/types.h>
+
#if (_MIPS_SZLONG == 32)
#include <asm/compiler.h>
__quot = __quot << 32 | __low; \
(n) = __quot; \
__mod; })
+
+extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
#endif /* (_MIPS_SZLONG == 32) */
#if (_MIPS_SZLONG == 64)
(n) = __quot; \
__mod; })
+static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor)
+{
+ return dividend / divisor;
+}
+
#endif /* (_MIPS_SZLONG == 64) */
#endif /* _ASM_DIV64_H */
/* We don't care about the c0 hazard here */ \
} while (0)
-#define __fpu_enabled() (read_c0_status() & ST0_CU1)
-
#define enable_fpu() \
do { \
if (cpu_has_fpu) \
set_thread_flag(TIF_USEDFPU);
}
-static inline void own_fpu(int restore)
+static inline void own_fpu_inatomic(int restore)
{
- preempt_disable();
if (cpu_has_fpu && !__is_fpu_owner()) {
__own_fpu();
if (restore)
_restore_fp(current);
}
+}
+
+static inline void own_fpu(int restore)
+{
+ preempt_disable();
+ own_fpu_inatomic(restore);
preempt_enable();
}
return tsk->thread.fpu.fpr;
}
-static inline void enable_fp_in_kernel(void)
-{
- set_thread_flag(TIF_ALLOW_FP_IN_KERNEL);
- /* make sure CU1 and FPU ownership are consistent */
- if (!__is_fpu_owner() && __fpu_enabled())
- __disable_fpu();
-}
-
-static inline void disable_fp_in_kernel(void)
-{
- BUG_ON(!__is_fpu_owner() && __fpu_enabled());
- clear_thread_flag(TIF_ALLOW_FP_IN_KERNEL);
-}
-
#endif /* _ASM_FPU_H */
+++ /dev/null
-/*
- * linux/include/asm-mips/tx3927/irq.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 Toshiba Corporation
- */
-#ifndef __ASM_TX3927_IRQ_H
-#define __ASM_TX3927_IRQ_H
-
-#ifndef __ASSEMBLY__
-
-#include <asm/irq.h>
-
-struct tb_irq_space {
- struct tb_irq_space* next;
- int start_irqno;
- int nr_irqs;
- void (*mask_func)(int irq_nr, int space_id);
- void (*unmask_func)(int irq_no, int space_id);
- const char *name;
- int space_id;
- int can_share;
-};
-extern struct tb_irq_space* tb_irq_spaces;
-
-static __inline__ void add_tb_irq_space(struct tb_irq_space* sp)
-{
- sp->next = tb_irq_spaces;
- tb_irq_spaces = sp;
-}
-
-
-struct pt_regs;
-extern void
-toshibaboards_spurious(struct pt_regs *regs, int irq);
-extern void
-toshibaboards_irqdispatch(struct pt_regs *regs, int irq);
-
-extern struct irqaction *
-toshibaboards_get_irq_action(int irq);
-extern int
-toshibaboards_setup_irq(int irq, struct irqaction * new);
-
-
-extern int (*toshibaboards_gen_iack)(void);
-
-#endif /* !__ASSEMBLY__ */
-
-#define NR_ISA_IRQS 16
-#define TB_IRQ_IS_ISA(irq) \
- (0 <= (irq) && (irq) < NR_ISA_IRQS)
-#define TB_IRQ_TO_ISA_IRQ(irq) (irq)
-
-#endif /* __ASM_TX3927_IRQ_H */
/*
- * Defines for the TJSYS JMR-TX3927/JMI-3927IO2/JMY-1394IF.
+ * Defines for the TJSYS JMR-TX3927
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#include <asm/jmr3927/tx3927.h>
#include <asm/addrspace.h>
-#include <asm/jmr3927/irq.h>
-#ifndef __ASSEMBLY__
#include <asm/system.h>
-#endif
/* CS */
#define JMR3927_ROMCE0 0x1fc00000 /* 4M */
#define JMR3927_SDRAM_SIZE 0x02000000 /* 32M */
#define JMR3927_PORT_BASE KSEG1
-/* select indirect initiator access per errata */
-#define JMR3927_INIT_INDIRECT_PCI
-#define PCI_ISTAT_IDICC 0x1000
-#define PCI_IPCIBE_IBE_LONG 0
-#define PCI_IPCIBE_ICMD_IOREAD 2
-#define PCI_IPCIBE_ICMD_IOWRITE 3
-#define PCI_IPCIBE_ICMD_MEMREAD 6
-#define PCI_IPCIBE_ICMD_MEMWRITE 7
-#define PCI_IPCIBE_ICMD_SHIFT 4
-
/* Address map (virtual address) */
#define JMR3927_ROM0_BASE (KSEG1 + JMR3927_ROMCE0)
#define JMR3927_ROM1_BASE (KSEG1 + JMR3927_ROMCE1)
#define JMR3927_IOC_BASE (KSEG1 + JMR3927_ROMCE2)
-#define JMR3927_IOB_BASE (KSEG1 + JMR3927_ROMCE3)
-#define JMR3927_ISAMEM_BASE (JMR3927_IOB_BASE)
-#define JMR3927_ISAIO_BASE (JMR3927_IOB_BASE + 0x01000000)
-#define JMR3927_ISAC_BASE (JMR3927_IOB_BASE + 0x02000000)
-#define JMR3927_LCDVGA_REG_BASE (JMR3927_IOB_BASE + 0x03000000)
-#define JMR3927_LCDVGA_MEM_BASE (JMR3927_IOB_BASE + 0x03800000)
-#define JMR3927_JMY1394_BASE (KSEG1 + JMR3927_ROMCE5)
-#define JMR3927_PREMIER3_BASE (JMR3927_JMY1394_BASE + 0x00100000)
#define JMR3927_PCIMEM_BASE (KSEG1 + JMR3927_PCIMEM)
#define JMR3927_PCIIO_BASE (KSEG1 + JMR3927_PCIIO)
#define JMR3927_IOC_INTP_ADDR (JMR3927_IOC_BASE + 0x000b0000)
#define JMR3927_IOC_RESET_ADDR (JMR3927_IOC_BASE + 0x000f0000)
-#define JMR3927_ISAC_REV_ADDR (JMR3927_ISAC_BASE + 0x00000000)
-#define JMR3927_ISAC_EINTS_ADDR (JMR3927_ISAC_BASE + 0x00200000)
-#define JMR3927_ISAC_EINTM_ADDR (JMR3927_ISAC_BASE + 0x00300000)
-#define JMR3927_ISAC_NMI_ADDR (JMR3927_ISAC_BASE + 0x00400000)
-#define JMR3927_ISAC_LED_ADDR (JMR3927_ISAC_BASE + 0x00500000)
-#define JMR3927_ISAC_INTP_ADDR (JMR3927_ISAC_BASE + 0x00800000)
-#define JMR3927_ISAC_INTS1_ADDR (JMR3927_ISAC_BASE + 0x00900000)
-#define JMR3927_ISAC_INTS2_ADDR (JMR3927_ISAC_BASE + 0x00a00000)
-#define JMR3927_ISAC_INTM_ADDR (JMR3927_ISAC_BASE + 0x00b00000)
-
/* Flash ROM */
#define JMR3927_FLASH_BASE (JMR3927_ROM0_BASE)
#define JMR3927_FLASH_SIZE 0x00400000
-/* bits for IOC_REV/IOC_BREV/ISAC_REV (high byte) */
+/* bits for IOC_REV/IOC_BREV (high byte) */
#define JMR3927_IDT_MASK 0xfc
#define JMR3927_REV_MASK 0x03
#define JMR3927_IOC_IDT 0xe0
-#define JMR3927_ISAC_IDT 0x20
/* bits for IOC_INTS1/IOC_INTS2/IOC_INTM/IOC_INTP (high byte) */
#define JMR3927_IOC_INTB_PCIA 0
#define JMR3927_IOC_RESET_CPU 1
#define JMR3927_IOC_RESET_PCI 2
-/* bits for ISAC_EINTS/ISAC_EINTM (high byte) */
-#define JMR3927_ISAC_EINTB_IOCHK 2
-#define JMR3927_ISAC_EINTB_BWTH 4
-#define JMR3927_ISAC_EINTF_IOCHK (1 << JMR3927_ISAC_EINTB_IOCHK)
-#define JMR3927_ISAC_EINTF_BWTH (1 << JMR3927_ISAC_EINTB_BWTH)
-
-/* bits for ISAC_LED (high byte) */
-#define JMR3927_ISAC_LED_ISALED 0x01
-#define JMR3927_ISAC_LED_USRLED 0x02
-
-/* bits for ISAC_INTS/ISAC_INTM/ISAC_INTP (high byte) */
-#define JMR3927_ISAC_INTB_IRQ5 0
-#define JMR3927_ISAC_INTB_IRQKB 1
-#define JMR3927_ISAC_INTB_IRQMOUSE 2
-#define JMR3927_ISAC_INTB_IRQ4 3
-#define JMR3927_ISAC_INTB_IRQ12 4
-#define JMR3927_ISAC_INTB_IRQ3 5
-#define JMR3927_ISAC_INTB_IRQ10 6
-#define JMR3927_ISAC_INTB_ISAER 7
-#define JMR3927_ISAC_INTF_IRQ5 (1 << JMR3927_ISAC_INTB_IRQ5)
-#define JMR3927_ISAC_INTF_IRQKB (1 << JMR3927_ISAC_INTB_IRQKB)
-#define JMR3927_ISAC_INTF_IRQMOUSE (1 << JMR3927_ISAC_INTB_IRQMOUSE)
-#define JMR3927_ISAC_INTF_IRQ4 (1 << JMR3927_ISAC_INTB_IRQ4)
-#define JMR3927_ISAC_INTF_IRQ12 (1 << JMR3927_ISAC_INTB_IRQ12)
-#define JMR3927_ISAC_INTF_IRQ3 (1 << JMR3927_ISAC_INTB_IRQ3)
-#define JMR3927_ISAC_INTF_IRQ10 (1 << JMR3927_ISAC_INTB_IRQ10)
-#define JMR3927_ISAC_INTF_ISAER (1 << JMR3927_ISAC_INTB_ISAER)
-
-#ifndef __ASSEMBLY__
-
-#if 0
-#define jmr3927_ioc_reg_out(d, a) ((*(volatile unsigned short *)(a)) = (d) << 8)
-#define jmr3927_ioc_reg_in(a) (((*(volatile unsigned short *)(a)) >> 8) & 0xff)
-#else
#if defined(__BIG_ENDIAN)
#define jmr3927_ioc_reg_out(d, a) ((*(volatile unsigned char *)(a)) = (d))
#define jmr3927_ioc_reg_in(a) (*(volatile unsigned char *)(a))
#else
#error "No Endian"
#endif
-#endif
-#define jmr3927_isac_reg_out(d, a) ((*(volatile unsigned char *)(a)) = (d))
-#define jmr3927_isac_reg_in(a) (*(volatile unsigned char *)(a))
-
-static inline int jmr3927_have_isac(void)
-{
- unsigned char idt;
- unsigned long flags;
- unsigned long romcr3;
-
- local_irq_save(flags);
- romcr3 = tx3927_romcptr->cr[3];
- tx3927_romcptr->cr[3] &= 0xffffefff; /* do not wait infinitely */
- idt = jmr3927_isac_reg_in(JMR3927_ISAC_REV_ADDR) & JMR3927_IDT_MASK;
- tx3927_romcptr->cr[3] = romcr3;
- local_irq_restore(flags);
-
- return idt == JMR3927_ISAC_IDT;
-}
-#define jmr3927_have_nvram() \
- ((jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_IDT_MASK) == JMR3927_IOC_IDT)
/* LED macro */
#define jmr3927_led_set(n/*0-16*/) jmr3927_ioc_reg_out(~(n), JMR3927_IOC_LED_ADDR)
-#define jmr3927_io_led_set(n/*0-3*/) jmr3927_isac_reg_out((n), JMR3927_ISAC_LED_ADDR)
#define jmr3927_led_and_set(n/*0-16*/) jmr3927_ioc_reg_out((~(n)) & jmr3927_ioc_reg_in(JMR3927_IOC_LED_ADDR), JMR3927_IOC_LED_ADDR)
#define jmr3927_dipsw2() ((tx3927_pioptr->din & (1 << 10)) == 0)
#define jmr3927_dipsw3() ((jmr3927_ioc_reg_in(JMR3927_IOC_DIPSW_ADDR) & 2) == 0)
#define jmr3927_dipsw4() ((jmr3927_ioc_reg_in(JMR3927_IOC_DIPSW_ADDR) & 1) == 0)
-#define jmr3927_io_dipsw() (jmr3927_isac_reg_in(JMR3927_ISAC_LED_ADDR) >> 4)
-
-
-#endif /* !__ASSEMBLY__ */
/*
* IRQ mappings
*/
#define JMR3927_NR_IRQ_IRC 16 /* On-Chip IRC */
#define JMR3927_NR_IRQ_IOC 8 /* PCI/MODEM/INT[6:7] */
-#define JMR3927_NR_IRQ_ISAC 8 /* ISA */
-
-#define JMR3927_IRQ_IRC NR_ISA_IRQS
+#define JMR3927_IRQ_IRC 16
#define JMR3927_IRQ_IOC (JMR3927_IRQ_IRC + JMR3927_NR_IRQ_IRC)
-#define JMR3927_IRQ_ISAC (JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC)
-#define JMR3927_IRQ_END (JMR3927_IRQ_ISAC + JMR3927_NR_IRQ_ISAC)
-#define JMR3927_IRQ_IS_IRC(irq) (JMR3927_IRQ_IRC <= (irq) && (irq) < JMR3927_IRQ_IOC)
-#define JMR3927_IRQ_IS_IOC(irq) (JMR3927_IRQ_IOC <= (irq) && (irq) < JMR3927_IRQ_ISAC)
-#define JMR3927_IRQ_IS_ISAC(irq) (JMR3927_IRQ_ISAC <= (irq) && (irq) < JMR3927_IRQ_END)
+#define JMR3927_IRQ_END (JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC)
#define JMR3927_IRQ_IRC_INT0 (JMR3927_IRQ_IRC + TX3927_IR_INT0)
#define JMR3927_IRQ_IRC_INT1 (JMR3927_IRQ_IRC + TX3927_IR_INT1)
#define JMR3927_IRQ_IOC_INT6 (JMR3927_IRQ_IOC + JMR3927_IOC_INTB_INT6)
#define JMR3927_IRQ_IOC_INT7 (JMR3927_IRQ_IOC + JMR3927_IOC_INTB_INT7)
#define JMR3927_IRQ_IOC_SOFT (JMR3927_IRQ_IOC + JMR3927_IOC_INTB_SOFT)
-#define JMR3927_IRQ_ISAC_IRQ5 (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQ5)
-#define JMR3927_IRQ_ISAC_IRQKB (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQKB)
-#define JMR3927_IRQ_ISAC_IRQMOUSE (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQMOUSE)
-#define JMR3927_IRQ_ISAC_IRQ4 (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQ4)
-#define JMR3927_IRQ_ISAC_IRQ12 (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQ12)
-#define JMR3927_IRQ_ISAC_IRQ3 (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQ3)
-#define JMR3927_IRQ_ISAC_IRQ10 (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_IRQ10)
-#define JMR3927_IRQ_ISAC_ISAER (JMR3927_IRQ_ISAC + JMR3927_ISAC_INTB_ISAER)
-#if 0 /* auto detect */
-/* RTL8019AS 10M Ether (JMI-3927IO2:JPW2:1-2 Short) */
-#define JMR3927_IRQ_ETHER1 JMR3927_IRQ_IRC_INT0
-#endif
/* IOC (PCI, MODEM) */
#define JMR3927_IRQ_IOCINT JMR3927_IRQ_IRC_INT1
-/* ISAC (ISA, PCMCIA, KEYBOARD, MOUSE) */
-#define JMR3927_IRQ_ISACINT JMR3927_IRQ_IRC_INT2
/* TC35815 100M Ether (JMR-TX3912:JPW4:2-3 Short) */
#define JMR3927_IRQ_ETHER0 JMR3927_IRQ_IRC_INT3
/* Clock Tick (10ms) */
#define JMR3927_IRQ_TICK JMR3927_IRQ_IRC_TMR0
-#define JMR3927_IRQ_IDE JMR3927_IRQ_ISAC_IRQ12
-
-/* IEEE1394 (Note that this may conflicts with RTL8019AS 10M Ether...) */
-#define JMR3927_IRQ_PREMIER3 JMR3927_IRQ_IRC_INT0
-
-/* I/O Ports */
-/* RTL8019AS 10M Ether */
-#define JMR3927_ETHER1_PORT (JMR3927_ISAIO_BASE - JMR3927_PORT_BASE + 0x280)
-#define JMR3927_KBD_PORT (JMR3927_ISAIO_BASE - JMR3927_PORT_BASE + 0x00800060)
-#define JMR3927_IDE_PORT (JMR3927_ISAIO_BASE - JMR3927_PORT_BASE + 0x001001f0)
/* Clocks */
#define JMR3927_CORECLK 132710400 /* 132.7MHz */
#define TX3927_SIO_REG(ch) (0xfffef300 + (ch) * 0x100)
#define TX3927_PIO_REG 0xfffef500
-#ifndef __ASSEMBLY__
-
struct tx3927_sdramc_reg {
volatile unsigned long cr[8];
volatile unsigned long tr[3];
volatile unsigned long pdcr;
};
-#endif /* !__ASSEMBLY__ */
-
/*
* SDRAMC
*/
#define TX3927_PCFG_SELDMA_ALL 0x0000000f
#define TX3927_PCFG_SELDMA(ch) (0x00000001<<(ch))
-#ifndef __ASSEMBLY__
-
#define tx3927_sdramcptr ((struct tx3927_sdramc_reg *)TX3927_SDRAMC_REG)
#define tx3927_romcptr ((struct tx3927_romc_reg *)TX3927_ROMC_REG)
#define tx3927_dmaptr ((struct tx3927_dma_reg *)TX3927_DMA_REG)
#define tx3927_sioptr(ch) ((struct txx927_sio_reg *)TX3927_SIO_REG(ch))
#define tx3927_pioptr ((struct txx927_pio_reg *)TX3927_PIO_REG)
-#endif /* !__ASSEMBLY__ */
-
#endif /* __ASM_TX3927_H */
#ifndef __ASM_TXX927_H
#define __ASM_TXX927_H
-#ifndef __ASSEMBLY__
-
struct txx927_tmr_reg {
volatile unsigned long tcr;
volatile unsigned long tisr;
volatile unsigned long maskext;
};
-#endif /* !__ASSEMBLY__ */
-
-
/*
* TMR
*/
#define __get_dbe(x,ptr,size) \
({ \
long __gu_err; \
- __typeof(*(ptr)) __gu_val; \
+ __typeof__(*(ptr)) __gu_val; \
unsigned long __gu_addr; \
__asm__("":"=r" (__gu_val)); \
__gu_addr = (unsigned long) (ptr); \
#define HPC3_GIOMISC_ERTIME 0x1 /* Enable external timer real time. */
#define HPC3_GIOMISC_DENDIAN 0x2 /* dma descriptor endian, 1=lit 0=big */
- volatile u32 eeprom; /* EEPROM data reg. */
+ u32 eeprom; /* EEPROM data reg. */
#define HPC3_EEPROM_EPROT 0x01 /* Protect register enable */
#define HPC3_EEPROM_CSEL 0x02 /* Chip select */
#define HPC3_EEPROM_ECLK 0x04 /* EEPROM clock */
#define ip22_is_fullhouse() (sgioc->sysid & SGIOC_SYSID_FULLHOUSE)
-extern unsigned short ip22_eeprom_read(volatile unsigned int *ctrl, int reg);
+extern unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg);
extern unsigned short ip22_nvram_read(int reg);
#endif
volatile u32 divider; /* Divider reg for RPSS */
u32 _unused5;
- volatile u32 eeprom; /* EEPROM byte reg for r4k */
+ u32 eeprom; /* EEPROM byte reg for r4k */
#define SGIMC_EEPROM_PRE 0x00000001 /* eeprom chip PRE pin assertion */
#define SGIMC_EEPROM_CSEL 0x00000002 /* Active high, eeprom chip select */
#define SGIMC_EEPROM_SECLOCK 0x00000004 /* EEPROM serial clock */
* Mask values for each interrupt
*/
+#define _BCM1480_INT_MASK(w,n) _SB_MAKEMASK(w,((n) & 0x3F))
#define _BCM1480_INT_MASK1(n) _SB_MAKEMASK1(((n) & 0x3F))
#define _BCM1480_INT_OFFSET(n) (((n) & 0x40) << 6)
#define M_BCM1480_INT_PMI_HIGH _BCM1480_INT_MASK1(K_BCM1480_INT_PMI_HIGH)
#define M_BCM1480_INT_PMO_LOW _BCM1480_INT_MASK1(K_BCM1480_INT_PMO_LOW)
#define M_BCM1480_INT_PMO_HIGH _BCM1480_INT_MASK1(K_BCM1480_INT_PMO_HIGH)
+#define M_BCM1480_INT_MBOX_ALL _BCM1480_INT_MASK(8,K_BCM1480_INT_MBOX_0_0)
#define M_BCM1480_INT_MBOX_0_0 _BCM1480_INT_MASK1(K_BCM1480_INT_MBOX_0_0)
#define M_BCM1480_INT_MBOX_0_1 _BCM1480_INT_MASK1(K_BCM1480_INT_MBOX_0_1)
#define M_BCM1480_INT_MBOX_0_2 _BCM1480_INT_MASK1(K_BCM1480_INT_MBOX_0_2)
#define M_BCM1480_MC_CS6 _SB_MAKEMASK1(10)
#define M_BCM1480_MC_CS7 _SB_MAKEMASK1(11)
+#define M_BCM1480_MC_CS _SB_MAKEMASK(8,S_BCM1480_MC_CS0)
+#define V_BCM1480_MC_CS(x) _SB_MAKEVALUE(x,S_BCM1480_MC_CS0)
+#define G_BCM1480_MC_CS(x) _SB_GETVALUE(x,S_BCM1480_MC_CS0,M_BCM1480_MC_CS0)
+
#define M_BCM1480_MC_CMD_ACTIVE _SB_MAKEMASK1(16)
/*
#define K_BCM1480_MC_DRAM_TYPE_DDR2 2
#endif
+#define K_BCM1480_MC_DRAM_TYPE_DDR2_PASS1 0
+
#define V_BCM1480_MC_DRAM_TYPE_JEDEC V_BCM1480_MC_DRAM_TYPE(K_BCM1480_MC_DRAM_TYPE_JEDEC)
#define V_BCM1480_MC_DRAM_TYPE_FCRAM V_BCM1480_MC_DRAM_TYPE(K_BCM1480_MC_DRAM_TYPE_FCRAM)
#define M_BCM1480_MC_WR_ODT6_CS6 _SB_MAKEMASK1(31)
#define M_BCM1480_MC_CS_ODD_ODT_EN _SB_MAKEMASK1(32)
+
+#define S_BCM1480_MC_ODT0 0
+#define M_BCM1480_MC_ODT0 _SB_MAKEMASK(8,S_BCM1480_MC_ODT0)
+#define V_BCM1480_MC_ODT0(x) _SB_MAKEVALUE(x,S_BCM1480_MC_ODT0)
+
+#define S_BCM1480_MC_ODT2 8
+#define M_BCM1480_MC_ODT2 _SB_MAKEMASK(8,S_BCM1480_MC_ODT2)
+#define V_BCM1480_MC_ODT2(x) _SB_MAKEVALUE(x,S_BCM1480_MC_ODT2)
+
+#define S_BCM1480_MC_ODT4 16
+#define M_BCM1480_MC_ODT4 _SB_MAKEMASK(8,S_BCM1480_MC_ODT4)
+#define V_BCM1480_MC_ODT4(x) _SB_MAKEVALUE(x,S_BCM1480_MC_ODT4)
+
+#define S_BCM1480_MC_ODT6 24
+#define M_BCM1480_MC_ODT6 _SB_MAKEMASK(8,S_BCM1480_MC_ODT6)
+#define V_BCM1480_MC_ODT6(x) _SB_MAKEVALUE(x,S_BCM1480_MC_ODT6)
#endif
/*
#define M_BCM1480_MC_DQO_SHIFT _SB_MAKEMASK1(47)
#endif
-#define S_BCM1480_MC_DLL_DEFAULT 48
-#define M_BCM1480_MC_DLL_DEFAULT _SB_MAKEMASK(6,S_BCM1480_MC_DLL_DEFAULT)
-#define V_BCM1480_MC_DLL_DEFAULT(x) _SB_MAKEVALUE(x,S_BCM1480_MC_DLL_DEFAULT)
-#define G_BCM1480_MC_DLL_DEFAULT(x) _SB_GETVALUE(x,S_BCM1480_MC_DLL_DEFAULT,M_BCM1480_MC_DLL_DEFAULT)
-#define V_BCM1480_MC_DLL_DEFAULT_DEFAULT V_BCM1480_MC_DLL_DEFAULT(0x10)
+#define S_BCM1480_MC_DLL_DEFAULT 48
+#define M_BCM1480_MC_DLL_DEFAULT _SB_MAKEMASK(6,S_BCM1480_MC_DLL_DEFAULT)
+#define V_BCM1480_MC_DLL_DEFAULT(x) _SB_MAKEVALUE(x,S_BCM1480_MC_DLL_DEFAULT)
+#define G_BCM1480_MC_DLL_DEFAULT(x) _SB_GETVALUE(x,S_BCM1480_MC_DLL_DEFAULT,M_BCM1480_MC_DLL_DEFAULT)
+#define V_BCM1480_MC_DLL_DEFAULT_DEFAULT V_BCM1480_MC_DLL_DEFAULT(0x10)
#if SIBYTE_HDR_FEATURE(1480, PASS2)
#define S_BCM1480_MC_DLL_REGCTRL 54
#define A_BCM1480_DUART_IMRREG(chan) (A_BCM1480_DUART(chan) + R_BCM1480_DUART_IMRREG(chan))
#define A_BCM1480_DUART_ISRREG(chan) (A_BCM1480_DUART(chan) + R_BCM1480_DUART_ISRREG(chan))
+#define A_BCM1480_DUART_IN_PORT(chan) (A_BCM1480_DUART(chan) + R_DUART_INP_ORT)
/*
* These constants are the absolute addresses.
#define R_BCM1480_IMR_ALIAS_MAILBOX_0 0x0000 /* 0x0x0 */
#define R_BCM1480_IMR_ALIAS_MAILBOX_0_SET 0x0008 /* 0x0x8 */
+/*
+ * these macros work together to build the address of a mailbox
+ * register, e.g., A_BCM1480_MAILBOX_REGISTER(0,R_BCM1480_IMR_MAILBOX_SET,2)
+ * for mbox_0_set_cpu2 returns 0x00100240C8
+ */
+#define R_BCM1480_IMR_MAILBOX_CPU 0x00
+#define R_BCM1480_IMR_MAILBOX_SET 0x08
+#define R_BCM1480_IMR_MAILBOX_CLR 0x10
+#define R_BCM1480_IMR_MAILBOX_NUM_SPACING 0x20
+#define A_BCM1480_MAILBOX_REGISTER(num,reg,cpu) \
+ (A_BCM1480_IMR_CPU0_BASE + \
+ (num * R_BCM1480_IMR_MAILBOX_NUM_SPACING) + \
+ (cpu * BCM1480_IMR_REGISTER_SPACING) + \
+ (R_BCM1480_IMR_MAILBOX_0_CPU + reg))
+
/* *********************************************************************
* System Performance Counter Registers (Section 4.7)
********************************************************************* */
#define A_BCM1480_SCD_PERF_CNT_6 0x0010020500
#define A_BCM1480_SCD_PERF_CNT_7 0x0010020508
+#define BCM1480_SCD_NUM_PERF_CNT 8
+#define BCM1480_SCD_PERF_CNT_SPACING 8
+#define A_BCM1480_SCD_PERF_CNT(n) (A_SCD_PERF_CNT_0+(n*BCM1480_SCD_PERF_CNT_SPACING))
+
/* *********************************************************************
* System Bus Watcher Registers (Section 4.8)
********************************************************************* */
*
*********************************************************************
*
- * Copyright 2000,2001,2002,2003
+ * Copyright 2000,2001,2002,2003,2004,2005
* Broadcom Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or
#define K_SYS_PART_BCM1280 0x1206
#define K_SYS_PART_BCM1455 0x1407
#define K_SYS_PART_BCM1255 0x1257
+#define K_SYS_PART_BCM1158 0x1156
/*
* Manufacturing Information Register (Table 14)
* System Performance Counter Configuration Register (Table 31)
* Register: PERF_CNT_CFG_0
*
- * Since the clear/enable bits are moved compared to the
- * 1250 and there are more fields, this register will be BCM1480 specific.
+ * SPC_CFG_SRC[0-3] is the same as the 1250.
+ * SPC_CFG_SRC[4-7] only exist on the 1480
+ * The clear/enable bits are in different locations on the 1250 and 1480.
*/
-#define S_BCM1480_SPC_CFG_SRC0 0
-#define M_BCM1480_SPC_CFG_SRC0 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC0)
-#define V_BCM1480_SPC_CFG_SRC0(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC0)
-#define G_BCM1480_SPC_CFG_SRC0(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC0,M_BCM1480_SPC_CFG_SRC0)
-
-#define S_BCM1480_SPC_CFG_SRC1 8
-#define M_BCM1480_SPC_CFG_SRC1 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC1)
-#define V_BCM1480_SPC_CFG_SRC1(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC1)
-#define G_BCM1480_SPC_CFG_SRC1(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC1,M_BCM1480_SPC_CFG_SRC1)
-
-#define S_BCM1480_SPC_CFG_SRC2 16
-#define M_BCM1480_SPC_CFG_SRC2 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC2)
-#define V_BCM1480_SPC_CFG_SRC2(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC2)
-#define G_BCM1480_SPC_CFG_SRC2(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC2,M_BCM1480_SPC_CFG_SRC2)
-
-#define S_BCM1480_SPC_CFG_SRC3 24
-#define M_BCM1480_SPC_CFG_SRC3 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC3)
-#define V_BCM1480_SPC_CFG_SRC3(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC3)
-#define G_BCM1480_SPC_CFG_SRC3(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC3,M_BCM1480_SPC_CFG_SRC3)
-
-#define S_BCM1480_SPC_CFG_SRC4 32
-#define M_BCM1480_SPC_CFG_SRC4 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC4)
-#define V_BCM1480_SPC_CFG_SRC4(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC4)
-#define G_BCM1480_SPC_CFG_SRC4(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC4,M_BCM1480_SPC_CFG_SRC4)
-
-#define S_BCM1480_SPC_CFG_SRC5 40
-#define M_BCM1480_SPC_CFG_SRC5 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC5)
-#define V_BCM1480_SPC_CFG_SRC5(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC5)
-#define G_BCM1480_SPC_CFG_SRC5(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC5,M_BCM1480_SPC_CFG_SRC5)
-
-#define S_BCM1480_SPC_CFG_SRC6 48
-#define M_BCM1480_SPC_CFG_SRC6 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC6)
-#define V_BCM1480_SPC_CFG_SRC6(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC6)
-#define G_BCM1480_SPC_CFG_SRC6(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC6,M_BCM1480_SPC_CFG_SRC6)
-
-#define S_BCM1480_SPC_CFG_SRC7 56
-#define M_BCM1480_SPC_CFG_SRC7 _SB_MAKEMASK(8,S_BCM1480_SPC_CFG_SRC7)
-#define V_BCM1480_SPC_CFG_SRC7(x) _SB_MAKEVALUE(x,S_BCM1480_SPC_CFG_SRC7)
-#define G_BCM1480_SPC_CFG_SRC7(x) _SB_GETVALUE(x,S_BCM1480_SPC_CFG_SRC7,M_BCM1480_SPC_CFG_SRC7)
+#define S_SPC_CFG_SRC4 32
+#define M_SPC_CFG_SRC4 _SB_MAKEMASK(8,S_SPC_CFG_SRC4)
+#define V_SPC_CFG_SRC4(x) _SB_MAKEVALUE(x,S_SPC_CFG_SRC4)
+#define G_SPC_CFG_SRC4(x) _SB_GETVALUE(x,S_SPC_CFG_SRC4,M_SPC_CFG_SRC4)
+
+#define S_SPC_CFG_SRC5 40
+#define M_SPC_CFG_SRC5 _SB_MAKEMASK(8,S_SPC_CFG_SRC5)
+#define V_SPC_CFG_SRC5(x) _SB_MAKEVALUE(x,S_SPC_CFG_SRC5)
+#define G_SPC_CFG_SRC5(x) _SB_GETVALUE(x,S_SPC_CFG_SRC5,M_SPC_CFG_SRC5)
+
+#define S_SPC_CFG_SRC6 48
+#define M_SPC_CFG_SRC6 _SB_MAKEMASK(8,S_SPC_CFG_SRC6)
+#define V_SPC_CFG_SRC6(x) _SB_MAKEVALUE(x,S_SPC_CFG_SRC6)
+#define G_SPC_CFG_SRC6(x) _SB_GETVALUE(x,S_SPC_CFG_SRC6,M_SPC_CFG_SRC6)
+
+#define S_SPC_CFG_SRC7 56
+#define M_SPC_CFG_SRC7 _SB_MAKEMASK(8,S_SPC_CFG_SRC7)
+#define V_SPC_CFG_SRC7(x) _SB_MAKEVALUE(x,S_SPC_CFG_SRC7)
+#define G_SPC_CFG_SRC7(x) _SB_GETVALUE(x,S_SPC_CFG_SRC7,M_SPC_CFG_SRC7)
/*
* System Performance Counter Control Register (Table 32)
* Register: PERF_CNT_CFG_1
* BCM1480 specific
*/
-
-#define M_BCM1480_SPC_CFG_CLEAR _SB_MAKEMASK1(0)
-#define M_BCM1480_SPC_CFG_ENABLE _SB_MAKEMASK1(1)
+#define M_BCM1480_SPC_CFG_CLEAR _SB_MAKEMASK1(0)
+#define M_BCM1480_SPC_CFG_ENABLE _SB_MAKEMASK1(1)
+#if SIBYTE_HDR_FEATURE_CHIP(1480)
+#define M_SPC_CFG_CLEAR M_BCM1480_SPC_CFG_CLEAR
+#define M_SPC_CFG_ENABLE M_BCM1480_SPC_CFG_ENABLE
+#endif
/*
* System Performance Counters (Table 33)
* Trace Control Register (Table 49)
* Register: TRACE_CFG
*
- * Bits 0..8 are the same as the BCM1250, rest are different.
- * Entire register is redefined below.
+ * BCM1480 changes to this register (other than location of the CUR_ADDR field)
+ * are defined below.
*/
-#define M_BCM1480_SCD_TRACE_CFG_RESET _SB_MAKEMASK1(0)
-#define M_BCM1480_SCD_TRACE_CFG_START_READ _SB_MAKEMASK1(1)
-#define M_BCM1480_SCD_TRACE_CFG_START _SB_MAKEMASK1(2)
-#define M_BCM1480_SCD_TRACE_CFG_STOP _SB_MAKEMASK1(3)
-#define M_BCM1480_SCD_TRACE_CFG_FREEZE _SB_MAKEMASK1(4)
-#define M_BCM1480_SCD_TRACE_CFG_FREEZE_FULL _SB_MAKEMASK1(5)
-#define M_BCM1480_SCD_TRACE_CFG_DEBUG_FULL _SB_MAKEMASK1(6)
-#define M_BCM1480_SCD_TRACE_CFG_FULL _SB_MAKEMASK1(7)
-#define M_BCM1480_SCD_TRACE_CFG_FORCE_CNT _SB_MAKEMASK1(8)
-
#define S_BCM1480_SCD_TRACE_CFG_MODE 16
#define M_BCM1480_SCD_TRACE_CFG_MODE _SB_MAKEMASK(2,S_BCM1480_SCD_TRACE_CFG_MODE)
#define V_BCM1480_SCD_TRACE_CFG_MODE(x) _SB_MAKEVALUE(x,S_BCM1480_SCD_TRACE_CFG_MODE)
#define K_BCM1480_SCD_TRACE_CFG_MODE_BYTEEN_INT 1
#define K_BCM1480_SCD_TRACE_CFG_MODE_FLOW_ID 2
-#define S_BCM1480_SCD_TRACE_CFG_CUR_ADDR 24
-#define M_BCM1480_SCD_TRACE_CFG_CUR_ADDR _SB_MAKEMASK(8,S_BCM1480_SCD_TRACE_CFG_CUR_ADDR)
-#define V_BCM1480_SCD_TRACE_CFG_CUR_ADDR(x) _SB_MAKEVALUE(x,S_BCM1480_SCD_TRACE_CFG_CUR_ADDR)
-#define G_BCM1480_SCD_TRACE_CFG_CUR_ADDR(x) _SB_GETVALUE(x,S_BCM1480_SCD_TRACE_CFG_CUR_ADDR,M_BCM1480_SCD_TRACE_CFG_CUR_ADDR)
-
#endif /* _BCM1480_SCD_H */
/*
- * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation
+ * Copyright (C) 2000,2001,2002,2003,2004 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#ifndef _SIBYTE_BOARD_H
#define _SIBYTE_BOARD_H
-
#if defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_PTSWARM) || \
+ defined(CONFIG_SIBYTE_PT1120) || defined(CONFIG_SIBYTE_PT1125) || \
defined(CONFIG_SIBYTE_CRHONE) || defined(CONFIG_SIBYTE_CRHINE) || \
defined(CONFIG_SIBYTE_LITTLESUR)
#include <asm/sibyte/swarm.h>
#define setleds(t0,t1,c0,c1,c2,c3)
#endif /* LEDS_PHYS */
+#else
+
+void swarm_setup(void);
+
+#ifdef LEDS_PHYS
+extern void setleds(char *str);
+#else
+#define setleds(s) do { } while (0)
+#endif /* LEDS_PHYS */
+
#endif /* __ASSEMBLY__ */
#endif /* _SIBYTE_BOARD_H */
#ifndef __ASM_SIBYTE_CARMEL_H
#define __ASM_SIBYTE_CARMEL_H
-
#include <asm/sibyte/sb1250.h>
#include <asm/sibyte/sb1250_int.h>
* First, the interrupt numbers.
*/
-#if SIBYTE_HDR_FEATURE_1250_112x
-
#define K_INT_SOURCES 64
#define K_INT_WATCHDOG_TIMER_0 0
#define M_INT_MBOX_1 _SB_MAKEMASK1(K_INT_MBOX_1)
#define M_INT_MBOX_2 _SB_MAKEMASK1(K_INT_MBOX_2)
#define M_INT_MBOX_3 _SB_MAKEMASK1(K_INT_MBOX_3)
+#define M_INT_MBOX_ALL _SB_MAKEMASK(4,K_INT_MBOX_0)
#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
#define M_INT_CYCLE_CP0_INT _SB_MAKEMASK1(K_INT_CYCLE_CP0_INT)
#define M_INT_CYCLE_CP1_INT _SB_MAKEMASK1(K_INT_CYCLE_CP1_INT)
#endif /* 1250/112x */
-
-#endif
#define M_MAC_BYPASS_16 _SB_MAKEMASK1(42)
#define M_MAC_BYPASS_FCS_CHK _SB_MAKEMASK1(43)
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_MAC_RX_CH_SEL_MSB _SB_MAKEMASK1(44)
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480*/
#if SIBYTE_HDR_FEATURE(1250, PASS3) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_MAC_SPLIT_CH_SEL _SB_MAKEMASK1(45)
/* XXX: Can't enable, as it has the same name as a pass2+ define below. */
/* #define M_MAC_TX_WR_THRSH _SB_MAKEMASK(6,S_MAC_TX_WR_THRSH) */
#endif /* up to 1250 PASS1 */
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_MAC_TX_WR_THRSH _SB_MAKEMASK(7,S_MAC_TX_WR_THRSH)
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
#define V_MAC_TX_WR_THRSH(x) _SB_MAKEVALUE(x,S_MAC_TX_WR_THRSH)
#define G_MAC_TX_WR_THRSH(x) _SB_GETVALUE(x,S_MAC_TX_WR_THRSH,M_MAC_TX_WR_THRSH)
/* XXX: Can't enable, as it has the same name as a pass2+ define below. */
/* #define M_MAC_TX_RD_THRSH _SB_MAKEMASK(6,S_MAC_TX_RD_THRSH) */
#endif /* up to 1250 PASS1 */
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_MAC_TX_RD_THRSH _SB_MAKEMASK(7,S_MAC_TX_RD_THRSH)
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
#define V_MAC_TX_RD_THRSH(x) _SB_MAKEVALUE(x,S_MAC_TX_RD_THRSH)
#define G_MAC_TX_RD_THRSH(x) _SB_GETVALUE(x,S_MAC_TX_RD_THRSH,M_MAC_TX_RD_THRSH)
#define V_MAC_RX_RL_THRSH(x) _SB_MAKEVALUE(x,S_MAC_RX_RL_THRSH)
#define G_MAC_RX_RL_THRSH(x) _SB_GETVALUE(x,S_MAC_RX_RL_THRSH,M_MAC_RX_RL_THRSH)
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define S_MAC_ENC_FC_THRSH _SB_MAKE64(56)
#define M_MAC_ENC_FC_THRSH _SB_MAKEMASK(6,S_MAC_ENC_FC_THRSH)
#define V_MAC_ENC_FC_THRSH(x) _SB_MAKEVALUE(x,S_MAC_ENC_FC_THRSH)
#define G_MAC_ENC_FC_THRSH(x) _SB_GETVALUE(x,S_MAC_ENC_FC_THRSH,M_MAC_ENC_FC_THRSH)
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
/*
* MAC Frame Configuration Registers (Table 9-15)
#define M_MAC_LTCOL_ERR _SB_MAKEMASK1(44)
#define M_MAC_EXCOL_ERR _SB_MAKEMASK1(45)
#define M_MAC_CNTR_OVRFL_ERR _SB_MAKEMASK1(46)
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_MAC_SPLIT_EN _SB_MAKEMASK1(47) /* interrupt mask only */
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
#define S_MAC_COUNTER_ADDR _SB_MAKE64(47)
#define M_MAC_COUNTER_ADDR _SB_MAKEMASK(5,S_MAC_COUNTER_ADDR)
#define M_MAC_MCAST_INV _SB_MAKEMASK1(4)
#define M_MAC_BCAST_EN _SB_MAKEMASK1(5)
#define M_MAC_DIRECT_INV _SB_MAKEMASK1(6)
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_MAC_ALLMCAST_EN _SB_MAKEMASK1(7)
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
#define S_MAC_IPHDR_OFFSET _SB_MAKE64(8)
#define M_MAC_IPHDR_OFFSET _SB_MAKEMASK(8,S_MAC_IPHDR_OFFSET)
#if SIBYTE_HDR_FEATURE(1250, PASS3) || SIBYTE_HDR_FEATURE(112x, PASS1)
#define M_MC_PRE_ON_A8 _SB_MAKEMASK1(36)
-#define M_MC_RAM_WITH_A13 _SB_MAKEMASK1(38)
+#define M_MC_RAM_WITH_A13 _SB_MAKEMASK1(37)
#endif /* 1250 PASS3 || 112x PASS1 */
#endif
+
/* *********************************************************************
* PCI Interface Registers
********************************************************************* */
#define R_MAC_VLANTAG 0x00000110
#define R_MAC_FRAMECFG 0x00000118
#define R_MAC_EOPCNT 0x00000120
-#define R_MAC_FIFO_PTRS 0x00000130
+#define R_MAC_FIFO_PTRS 0x00000128
#define R_MAC_ADFILTER_CFG 0x00000200
#define R_MAC_ETHERNET_ADDR 0x00000208
#define R_MAC_PKT_TYPE 0x00000210
-#if SIBYTE_HDR_FEATURE(1250, PASS3) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS3) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define R_MAC_ADMASK0 0x00000218
#define R_MAC_ADMASK1 0x00000220
-#endif /* 1250 PASS3 || 112x PASS1 */
+#endif /* 1250 PASS3 || 112x PASS1 || 1480 */
#define R_MAC_HASH_BASE 0x00000240
#define R_MAC_ADDR_BASE 0x00000280
#define R_MAC_CHLO0_BASE 0x00000300
#define R_MAC_INT_MASK 0x00000410
#define R_MAC_TXD_CTL 0x00000420
#define R_MAC_MDIO 0x00000428
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define R_MAC_STATUS1 0x00000430
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
#define R_MAC_DEBUG_STATUS 0x00000448
#define MAC_HASH_COUNT 8
#define R_DUART_RX_HOLD 0x160
#define R_DUART_TX_HOLD 0x170
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define R_DUART_FULL_CTL 0x140
#define R_DUART_OPCR_X 0x180
#define R_DUART_AUXCTL_X 0x190
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480*/
/*
#define R_DUART_IMR_B 0x350
#define R_DUART_OUT_PORT 0x360
#define R_DUART_OPCR 0x370
+#define R_DUART_IN_PORT 0x380
#define R_DUART_SET_OPR 0x3B0
#define R_DUART_CLEAR_OPR 0x3C0
#define A_ADDR_TRAP_REG_DEBUG 0x0010020460
#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
+#define ADDR_TRAP_SPACING 8
+#define NUM_ADDR_TRAP 4
+#define A_ADDR_TRAP_UP(n) (A_ADDR_TRAP_UP_0 + ((n) * ADDR_TRAP_SPACING))
+#define A_ADDR_TRAP_DOWN(n) (A_ADDR_TRAP_DOWN_0 + ((n) * ADDR_TRAP_SPACING))
+#define A_ADDR_TRAP_CFG(n) (A_ADDR_TRAP_CFG_0 + ((n) * ADDR_TRAP_SPACING))
+
/* *********************************************************************
* System Interrupt Mapper Registers
********************************************************************* */
-#if SIBYTE_HDR_FEATURE_1250_112x
#define A_IMR_CPU0_BASE 0x0010020000
#define A_IMR_CPU1_BASE 0x0010022000
#define IMR_REGISTER_SPACING 0x2000
#define A_IMR_REGISTER(cpu,reg) (A_IMR_MAPPER(cpu)+(reg))
#define R_IMR_INTERRUPT_DIAG 0x0010
+#define R_IMR_INTERRUPT_LDT 0x0018
#define R_IMR_INTERRUPT_MASK 0x0028
#define R_IMR_INTERRUPT_TRACE 0x0038
#define R_IMR_INTERRUPT_SOURCE_STATUS 0x0040
#define R_IMR_INTERRUPT_STATUS_COUNT 7
#define R_IMR_INTERRUPT_MAP_BASE 0x0200
#define R_IMR_INTERRUPT_MAP_COUNT 64
-#endif /* 1250/112x */
+
+/*
+ * these macros work together to build the address of a mailbox
+ * register, e.g., A_MAILBOX_REGISTER(R_IMR_MAILBOX_SET_CPU,1)
+ * for mbox_0_set_cpu2 returns 0x00100240C8
+ */
+#define A_MAILBOX_REGISTER(reg,cpu) \
+ (A_IMR_CPU0_BASE + (cpu * IMR_REGISTER_SPACING) + reg)
/* *********************************************************************
* System Performance Counter Registers
#define A_SCD_PERF_CNT_2 0x00100204E0
#define A_SCD_PERF_CNT_3 0x00100204E8
+#define SCD_NUM_PERF_CNT 4
+#define SCD_PERF_CNT_SPACING 8
+#define A_SCD_PERF_CNT(n) (A_SCD_PERF_CNT_0+(n*SCD_PERF_CNT_SPACING))
+
/* *********************************************************************
* System Bus Watcher Registers
********************************************************************* */
#define A_SCD_TRACE_SEQUENCE_6 0x0010020A90
#define A_SCD_TRACE_SEQUENCE_7 0x0010020A98
+#define TRACE_REGISTER_SPACING 8
+#define TRACE_NUM_REGISTERS 8
+#define A_SCD_TRACE_EVENT(n) (((n) & 4) ? \
+ (A_SCD_TRACE_EVENT_4 + (((n) & 3) * TRACE_REGISTER_SPACING)) : \
+ (A_SCD_TRACE_EVENT_0 + ((n) * TRACE_REGISTER_SPACING)))
+#define A_SCD_TRACE_SEQUENCE(n) (((n) & 4) ? \
+ (A_SCD_TRACE_SEQUENCE_4 + (((n) & 3) * TRACE_REGISTER_SPACING)) : \
+ (A_SCD_TRACE_SEQUENCE_0 + ((n) * TRACE_REGISTER_SPACING)))
+
/* *********************************************************************
* System Generic DMA Registers
********************************************************************* */
*
*********************************************************************
*
- * Copyright 2000,2001,2002,2003
+ * Copyright 2000,2001,2002,2003,2004,2005
* Broadcom Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or
#define K_SYS_REVISION_BCM112x_A2 0x21
#define K_SYS_REVISION_BCM112x_A3 0x22
#define K_SYS_REVISION_BCM112x_A4 0x23
+#define K_SYS_REVISION_BCM112x_B0 0x30
#define K_SYS_REVISION_BCM1480_S0 0x01
#define K_SYS_REVISION_BCM1480_A1 0x02
* (For the assembler version, sysrev and dest may be the same register.
* Also, it clobbers AT.)
*/
-#ifdef __ASSEMBLY__
+#ifdef __ASSEMBLER__
#define SYS_SOC_TYPE(dest, sysrev) \
.set push ; \
.set reorder ; \
#define G_SYS_YPOS(x) _SB_GETVALUE(x,S_SYS_YPOS,M_SYS_YPOS)
#endif
+
/*
* System Config Register (Table 4-2)
* Register: SCD_SYSTEM_CFG
*/
#define V_SCD_TIMER_FREQ 1000000
-#define V_SCD_TIMER_WIDTH 23
#define S_SCD_TIMER_INIT 0
-#define M_SCD_TIMER_INIT _SB_MAKEMASK(V_SCD_TIMER_WIDTH,S_SCD_TIMER_INIT)
+#define M_SCD_TIMER_INIT _SB_MAKEMASK(23,S_SCD_TIMER_INIT)
#define V_SCD_TIMER_INIT(x) _SB_MAKEVALUE(x,S_SCD_TIMER_INIT)
#define G_SCD_TIMER_INIT(x) _SB_GETVALUE(x,S_SCD_TIMER_INIT,M_SCD_TIMER_INIT)
+#define V_SCD_TIMER_WIDTH 23
#define S_SCD_TIMER_CNT 0
#define M_SCD_TIMER_CNT _SB_MAKEMASK(V_SCD_TIMER_WIDTH,S_SCD_TIMER_CNT)
#define V_SCD_TIMER_CNT(x) _SB_MAKEVALUE(x,S_SCD_TIMER_CNT)
* System Performance Counters
*/
-#if SIBYTE_HDR_FEATURE_1250_112x
#define S_SPC_CFG_SRC0 0
#define M_SPC_CFG_SRC0 _SB_MAKEMASK(8,S_SPC_CFG_SRC0)
#define V_SPC_CFG_SRC0(x) _SB_MAKEVALUE(x,S_SPC_CFG_SRC0)
#define V_SPC_CFG_SRC3(x) _SB_MAKEVALUE(x,S_SPC_CFG_SRC3)
#define G_SPC_CFG_SRC3(x) _SB_GETVALUE(x,S_SPC_CFG_SRC3,M_SPC_CFG_SRC3)
+#if SIBYTE_HDR_FEATURE_1250_112x
#define M_SPC_CFG_CLEAR _SB_MAKEMASK1(32)
#define M_SPC_CFG_ENABLE _SB_MAKEMASK1(33)
#endif
* Trace Buffer Config register
*/
-#if SIBYTE_HDR_FEATURE_1250_112x
-
#define M_SCD_TRACE_CFG_RESET _SB_MAKEMASK1(0)
#define M_SCD_TRACE_CFG_START_READ _SB_MAKEMASK1(1)
#define M_SCD_TRACE_CFG_START _SB_MAKEMASK1(2)
#define M_SCD_TRACE_CFG_FREEZE_FULL _SB_MAKEMASK1(5)
#define M_SCD_TRACE_CFG_DEBUG_FULL _SB_MAKEMASK1(6)
#define M_SCD_TRACE_CFG_FULL _SB_MAKEMASK1(7)
-#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
+#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
#define M_SCD_TRACE_CFG_FORCECNT _SB_MAKEMASK1(8)
-#endif /* 1250 PASS2 || 112x PASS1 */
+#endif /* 1250 PASS2 || 112x PASS1 || 1480 */
+/*
+ * This field is the same on the 1250/112x and 1480, just located in
+ * a slightly different place in the register.
+ */
+#if SIBYTE_HDR_FEATURE_1250_112x
#define S_SCD_TRACE_CFG_CUR_ADDR 10
+#else
+#if SIBYTE_HDR_FEATURE_CHIP(1480)
+#define S_SCD_TRACE_CFG_CUR_ADDR 24
+#endif /* 1480 */
+#endif /* 1250/112x */
+
#define M_SCD_TRACE_CFG_CUR_ADDR _SB_MAKEMASK(8,S_SCD_TRACE_CFG_CUR_ADDR)
#define V_SCD_TRACE_CFG_CUR_ADDR(x) _SB_MAKEVALUE(x,S_SCD_TRACE_CFG_CUR_ADDR)
#define G_SCD_TRACE_CFG_CUR_ADDR(x) _SB_GETVALUE(x,S_SCD_TRACE_CFG_CUR_ADDR,M_SCD_TRACE_CFG_CUR_ADDR)
-#endif /* 1250/112x */
-
/*
* Trace Event registers
*/
#define SIBYTE_HAVE_IDE 1
#define SIBYTE_DEFAULT_CONSOLE "ttyS0,115200"
#endif
+#ifdef CONFIG_SIBYTE_PT1120
+#define SIBYTE_BOARD_NAME "PT1120"
+#define SIBYTE_HAVE_PCMCIA 1
+#define SIBYTE_HAVE_IDE 1
+#define SIBYTE_DEFAULT_CONSOLE "ttyS0,115200"
+#endif
+#ifdef CONFIG_SIBYTE_PT1125
+#define SIBYTE_BOARD_NAME "PT1125"
+#define SIBYTE_HAVE_PCMCIA 1
+#define SIBYTE_HAVE_IDE 1
+#define SIBYTE_DEFAULT_CONSOLE "ttyS0,115200"
+#endif
#ifdef CONFIG_SIBYTE_LITTLESUR
#define SIBYTE_BOARD_NAME "BCM91250C2 (LittleSur)"
#define SIBYTE_HAVE_PCMCIA 0
#define SO_SNDBUFFORCE 31
#define SO_RCVBUFFORCE 33
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#ifdef __KERNEL__
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP 0x8906 /* Get stamp - linux-specific */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _ASM_SOCKIOS_H */
#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 18
#define TIF_FREEZE 19
-#define TIF_ALLOW_FP_IN_KERNEL 20
#define TIF_SYSCALL_TRACE 31 /* syscall trace active */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define SO_PEERCRED 0x4011
#define SO_TIMESTAMP 0x4012
#define SCM_TIMESTAMP SO_TIMESTAMP
+#define SO_TIMESTAMPNS 0x4013
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x4016
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_POWERPC_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _ASM_POWERPC_SOCKIOS_H */
#define __HAVE_ARCH_MEMCMP
#define __HAVE_ARCH_MEMCHR
-extern int strcasecmp(const char *, const char *);
-extern int strncasecmp(const char *, const char *, __kernel_size_t);
extern char * strcpy(char *,const char *);
extern char * strncpy(char *,const char *, __kernel_size_t);
extern __kernel_size_t strlen(const char *);
-#ifndef _S390_BUG_H
-#define _S390_BUG_H
+#ifndef _ASM_S390_BUG_H
+#define _ASM_S390_BUG_H
#include <linux/kernel.h>
#ifdef CONFIG_BUG
-static inline __attribute__((noreturn)) void __do_illegal_op(void)
-{
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
- __builtin_trap();
+#ifdef CONFIG_64BIT
+#define S390_LONG ".quad"
#else
- asm volatile(".long 0");
+#define S390_LONG ".long"
#endif
-}
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- __do_illegal_op(); \
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define __EMIT_BUG(x) do { \
+ asm volatile( \
+ "0: j 0b+2\n" \
+ "1:\n" \
+ ".section .rodata.str,\"aMS\",@progbits,1\n" \
+ "2: .asciz \""__FILE__"\"\n" \
+ ".previous\n" \
+ ".section __bug_table,\"a\"\n" \
+ "3:\t" S390_LONG "\t1b,2b\n" \
+ " .short %0,%1\n" \
+ " .org 3b+%2\n" \
+ ".previous\n" \
+ : : "i" (__LINE__), \
+ "i" (x), \
+ "i" (sizeof(struct bug_entry))); \
} while (0)
+#else /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define __EMIT_BUG(x) do { \
+ asm volatile( \
+ "0: j 0b+2\n" \
+ "1:\n" \
+ ".section __bug_table,\"a\"\n" \
+ "2:\t" S390_LONG "\t1b\n" \
+ " .short %0\n" \
+ " .org 2b+%1\n" \
+ ".previous\n" \
+ : : "i" (x), \
+ "i" (sizeof(struct bug_entry))); \
+} while (0)
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG() __EMIT_BUG(0)
+
+#define WARN_ON(x) ({ \
+ typeof(x) __ret_warn_on = (x); \
+ if (__builtin_constant_p(__ret_warn_on)) { \
+ if (__ret_warn_on) \
+ __EMIT_BUG(BUGFLAG_WARNING); \
+ } else { \
+ if (unlikely(__ret_warn_on)) \
+ __EMIT_BUG(BUGFLAG_WARNING); \
+ } \
+ unlikely(__ret_warn_on); \
+})
+
#define HAVE_ARCH_BUG
-#endif
+#define HAVE_ARCH_WARN_ON
+#endif /* CONFIG_BUG */
#include <asm-generic/bug.h>
-#endif
+#endif /* _ASM_S390_BUG_H */
CCWGROUP_ONLINE,
} state;
atomic_t onoff;
+ struct mutex reg_mutex;
unsigned int count; /* number of attached slave devices */
struct device dev; /* master device */
struct ccw_device *cdev[0]; /* variable number, allocate as needed */
--- /dev/null
+/*
+ * drivers/s390/cio/chpid.h
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_CHPID_H
+#define _ASM_S390_CHPID_H _ASM_S390_CHPID_H
+
+#include <linux/string.h>
+#include <asm/types.h>
+#include <asm/cio.h>
+
+#define __MAX_CHPID 255
+
+struct chp_id {
+ u8 reserved1;
+ u8 cssid;
+ u8 reserved2;
+ u8 id;
+} __attribute__((packed));
+
+static inline void chp_id_init(struct chp_id *chpid)
+{
+ memset(chpid, 0, sizeof(struct chp_id));
+}
+
+static inline int chp_id_is_equal(struct chp_id *a, struct chp_id *b)
+{
+ return (a->id == b->id) && (a->cssid == b->cssid);
+}
+
+static inline void chp_id_next(struct chp_id *chpid)
+{
+ if (chpid->id < __MAX_CHPID)
+ chpid->id++;
+ else {
+ chpid->id = 0;
+ chpid->cssid++;
+ }
+}
+
+static inline int chp_id_is_valid(struct chp_id *chpid)
+{
+ return (chpid->cssid <= __MAX_CSSID);
+}
+
+
+#define chp_id_for_each(c) \
+ for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
+
+#endif /* _ASM_S390_CHPID_H */
#ifdef __KERNEL__
#define LPM_ANYPATH 0xff
+#define __MAX_CSSID 0
/*
* subchannel status word
extern void reipl_ccw_dev(struct ccw_dev_id *id);
+struct cio_iplinfo {
+ u16 devno;
+ int is_qdio;
+};
+
+extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo);
+
#endif
#endif
#define _ASM_S390_IPL_H
#include <asm/types.h>
+#include <asm/cio.h>
+#include <asm/setup.h>
#define IPL_PARMBLOCK_ORIGIN 0x2000
} __attribute__((packed));
/*
- * IPL validity flags and parameters as detected in head.S
+ * IPL validity flags
*/
extern u32 ipl_flags;
-extern u16 ipl_devno;
extern u32 dump_prefix_page;
+
extern void do_reipl(void);
extern void ipl_save_parameters(void);
IPL_NSS_VALID = 4,
};
+enum ipl_type {
+ IPL_TYPE_UNKNOWN = 1,
+ IPL_TYPE_CCW = 2,
+ IPL_TYPE_FCP = 4,
+ IPL_TYPE_FCP_DUMP = 8,
+ IPL_TYPE_NSS = 16,
+};
+
+struct ipl_info
+{
+ enum ipl_type type;
+ union {
+ struct {
+ struct ccw_dev_id dev_id;
+ } ccw;
+ struct {
+ struct ccw_dev_id dev_id;
+ u64 wwpn;
+ u64 lun;
+ } fcp;
+ struct {
+ char name[NSS_NAME_SIZE + 1];
+ } nss;
+ } data;
+};
+
+extern struct ipl_info ipl_info;
+extern void setup_ipl_info(void);
+
/*
* DIAG 308 support
*/
void mcck_int_handler(void);
void io_int_handler(void);
+struct save_area_s390 {
+ u32 ext_save;
+ u64 timer;
+ u64 clk_cmp;
+ u8 pad1[24];
+ u8 psw[8];
+ u32 pref_reg;
+ u8 pad2[20];
+ u32 acc_regs[16];
+ u64 fp_regs[4];
+ u32 gp_regs[16];
+ u32 ctrl_regs[16];
+} __attribute__((packed));
+
+struct save_area_s390x {
+ u64 fp_regs[16];
+ u64 gp_regs[16];
+ u8 psw[16];
+ u8 pad1[8];
+ u32 pref_reg;
+ u32 fp_ctrl_reg;
+ u8 pad2[4];
+ u32 tod_reg;
+ u64 timer;
+ u64 clk_cmp;
+ u8 pad3[8];
+ u32 acc_regs[16];
+ u64 ctrl_regs[16];
+} __attribute__((packed));
+
+union save_area {
+ struct save_area_s390 s390;
+ struct save_area_s390x s390x;
+};
+
+#define SAVE_AREA_BASE_S390 0xd4
+#define SAVE_AREA_BASE_S390X 0x1200
+
+#ifndef __s390x__
+#define SAVE_AREA_SIZE sizeof(struct save_area_s390)
+#define SAVE_AREA_BASE SAVE_AREA_BASE_S390
+#else
+#define SAVE_AREA_SIZE sizeof(struct save_area_s390x)
+#define SAVE_AREA_BASE SAVE_AREA_BASE_S390X
+#endif
+
struct _lowcore
{
#ifndef __s390x__
* should therefore only be called if it is not mapped in any
* address space.
*/
-static inline int page_test_and_clear_dirty(struct page *page)
+static inline int page_test_dirty(struct page *page)
{
- unsigned long physpage = page_to_phys(page);
- int skey = page_get_storage_key(physpage);
+ return (page_get_storage_key(page_to_phys(page)) & _PAGE_CHANGED) != 0;
+}
- if (skey & _PAGE_CHANGED)
- page_set_storage_key(physpage, skey & ~_PAGE_CHANGED);
- return skey & _PAGE_CHANGED;
+static inline void page_clear_dirty(struct page *page)
+{
+ page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY);
}
/*
#define __HAVE_ARCH_PTEP_CLEAR_FLUSH
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
#define __HAVE_ARCH_PTE_SAME
-#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
+#define __HAVE_ARCH_PAGE_TEST_DIRTY
+#define __HAVE_ARCH_PAGE_CLEAR_DIRTY
#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
#include <asm-generic/pgtable.h>
extern void s390_adjust_jiffies(void);
extern void print_cpu_info(struct cpuinfo_S390 *);
+extern int get_cpu_capability(unsigned int *);
/* Lazy FPU handling on uni-processor */
extern struct task_struct *last_task_used_math;
extern char *task_show_regs(struct task_struct *task, char *buffer);
extern void show_registers(struct pt_regs *regs);
+extern void show_code(struct pt_regs *regs);
extern void show_trace(struct task_struct *task, unsigned long *sp);
unsigned long get_wchan(struct task_struct *p);
#define _ASM_S390_SCLP_H
#include <linux/types.h>
+#include <asm/chpid.h>
struct sccb_header {
u16 length;
u8 _reserved3[4096 - 112]; /* 112-4095 */
} __attribute__((packed, aligned(4096)));
+#define SCLP_CHP_INFO_MASK_SIZE 32
+
+struct sclp_chp_info {
+ u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
+ u8 standby[SCLP_CHP_INFO_MASK_SIZE];
+ u8 configured[SCLP_CHP_INFO_MASK_SIZE];
+};
+
extern struct sclp_readinfo_sccb s390_readinfo_sccb;
extern void sclp_readinfo_early(void);
+extern int sclp_sdias_blk_count(void);
+extern int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
+extern int sclp_chp_configure(struct chp_id chpid);
+extern int sclp_chp_deconfigure(struct chp_id chpid);
+extern int sclp_chp_read_info(struct sclp_chp_info *info);
#endif /* _ASM_S390_SCLP_H */
};
extern struct mem_chunk memory_chunk[];
+extern unsigned long real_memory_size;
#ifdef CONFIG_S390_SWITCH_AMODE
extern unsigned int switch_amode;
#endif /* __s390x__ */
#define MACHINE_HAS_SCLP (!MACHINE_IS_P390)
+#define ZFCPDUMP_HSA_SIZE (32UL<<20)
/*
* Console mode. Override with conmode=
#define raw_smp_processor_id() (S390_lowcore.cpu_data.cpu_nr)
-extern int smp_get_cpu(cpumask_t cpu_map);
-extern void smp_put_cpu(int cpu);
-
static inline __u16 hard_smp_processor_id(void)
{
__u16 cpu_address;
}
#define smp_cpu_not_running(cpu) 1
-#define smp_get_cpu(cpu) ({ 0; })
-#define smp_put_cpu(cpu) ({ 0; })
#define smp_setup_cpu_possible_map() do { } while (0)
#endif
+extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* __ASM_SH_SOCKET_H */
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP _IOR('s', 100, struct timeval) /* Get stamp - linux-specific */
+#define SIOCGSTAMP _IOR('s', 100, struct timeval) /* Get stamp (timeval) */
+#define SIOCGSTAMPNS _IOR('s', 101, struct timespec) /* Get stamp (timespec) */
#endif /* __ASM_SH_SOCKIOS_H */
#define __HAVE_ARCH_STRLEN
extern size_t strlen(const char *);
-/* arch/sh/lib/strcasecmp.c */
-extern int strcasecmp(const char *, const char *);
-
#endif /* __KERNEL__ */
#endif /* __ASM_SH_STRING_H */
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP _IOR('s', 100, struct timeval) /* Get stamp - linux-specific */
+#define SIOCGSTAMP _IOR('s', 100, struct timeval) /* Get stamp (timeval) */
+#define SIOCGSTAMPNS _IOR('s', 101, struct timespec) /* Get stamp (timespec) */
#endif /* __ASM_SH64_SOCKIOS_H */
};
struct device_node {
- char *name;
- char *type;
+ const char *name;
+ const char *type;
phandle node;
char *path_component_name;
char *full_name;
extern struct device_node *of_get_parent(const struct device_node *node);
extern struct device_node *of_get_next_child(const struct device_node *node,
struct device_node *prev);
-extern struct property *of_find_property(struct device_node *np,
+extern struct property *of_find_property(const struct device_node *np,
const char *name,
int *lenp);
-extern int of_device_is_compatible(struct device_node *device, const char *);
-extern void *of_get_property(struct device_node *node, const char *name,
- int *lenp);
+extern int of_device_is_compatible(const struct device_node *device,
+ const char *);
+extern const void *of_get_property(const struct device_node *node,
+ const char *name,
+ int *lenp);
#define get_property(node,name,lenp) of_get_property(node,name,lenp)
extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
extern int of_getintprop_default(struct device_node *np,
#define SO_PEERSEC 0x001e
#define SO_PASSSEC 0x001f
+#define SO_TIMESTAMPNS 0x0021
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* !(_ASM_SPARC_SOCKIOS_H) */
typedef struct {
/* Dcache line 1 */
unsigned int __softirq_pending; /* must be 1st, see rtrap.S */
- unsigned int multiplier;
- unsigned int counter;
+ unsigned int __pad0_1;
+ unsigned int __pad0_2;
unsigned int __pad1;
unsigned long clock_tick; /* %tick's per second */
unsigned long udelay_val;
*
* This file is released under the GPLv2
*/
-#include <asm-generic/device.h>
+#ifndef _ASM_SPARC64_DEVICE_H
+#define _ASM_SPARC64_DEVICE_H
+struct device_node;
+struct of_device;
+
+struct dev_archdata {
+ void *iommu;
+ void *stc;
+ void *host_controller;
+
+ struct device_node *prom_node;
+ struct of_device *op;
+
+ unsigned int msi_num;
+};
+
+#endif /* _ASM_SPARC64_DEVICE_H */
#ifndef __SPARC64_EBUS_H
#define __SPARC64_EBUS_H
-#include <asm/pbm.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/of_device.h>
struct of_device ofdev;
struct linux_ebus *next;
struct linux_ebus_device *devices;
- struct pci_pbm_info *parent;
struct pci_dev *self;
int index;
int is_rio;
if (!strcmp(edev->prom_node->name, "fdthree"))
return 1;
if (!strcmp(edev->prom_node->name, "floppy")) {
- char *compat;
+ const char *compat;
compat = of_get_property(edev->prom_node,
"compatible", NULL);
struct linux_ebus_device *edev = NULL;
unsigned long config = 0;
void __iomem *auxio_reg;
- char *state_prop;
+ const char *state_prop;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
#define BIO_VMERGE_BOUNDARY 8192
-/* Different PCI controllers we support have their PCI MEM space
- * mapped to an either 2GB (Psycho) or 4GB (Sabre) aligned area,
- * so need to chop off the top 33 or 32 bits.
- */
-extern unsigned long pci_memspace_mask;
-
-#define bus_dvma_to_mem(__vaddr) ((__vaddr) & pci_memspace_mask)
-
static __inline__ u8 _inb(unsigned long addr)
{
u8 ret;
#define _SPARC64_IOMMU_H
/* The format of an iopte in the page tables. */
-#define IOPTE_VALID 0x8000000000000000UL /* IOPTE is valid */
-#define IOPTE_64K 0x2000000000000000UL /* IOPTE is for 64k page */
-#define IOPTE_STBUF 0x1000000000000000UL /* DVMA can use streaming buffer */
-#define IOPTE_INTRA 0x0800000000000000UL /* SBUS slot-->slot direct transfer*/
-#define IOPTE_CONTEXT 0x07ff800000000000UL /* Context number */
-#define IOPTE_PAGE 0x00007fffffffe000UL /* Physical page number (PA[42:13])*/
-#define IOPTE_CACHE 0x0000000000000010UL /* Cached (in UPA E-cache) */
-#define IOPTE_WRITE 0x0000000000000002UL /* Writeable */
+#define IOPTE_VALID 0x8000000000000000UL
+#define IOPTE_64K 0x2000000000000000UL
+#define IOPTE_STBUF 0x1000000000000000UL
+#define IOPTE_INTRA 0x0800000000000000UL
+#define IOPTE_CONTEXT 0x07ff800000000000UL
+#define IOPTE_PAGE 0x00007fffffffe000UL
+#define IOPTE_CACHE 0x0000000000000010UL
+#define IOPTE_WRITE 0x0000000000000002UL
#define IOMMU_NUM_CTXS 4096
+struct iommu_arena {
+ unsigned long *map;
+ unsigned int hint;
+ unsigned int limit;
+};
+
+struct iommu {
+ spinlock_t lock;
+ struct iommu_arena arena;
+ iopte_t *page_table;
+ u32 page_table_map_base;
+ unsigned long iommu_control;
+ unsigned long iommu_tsbbase;
+ unsigned long iommu_flush;
+ unsigned long iommu_ctxflush;
+ unsigned long write_complete_reg;
+ unsigned long dummy_page;
+ unsigned long dummy_page_pa;
+ unsigned long ctx_lowest_free;
+ DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS);
+ u32 dma_addr_mask;
+};
+
+struct strbuf {
+ int strbuf_enabled;
+ unsigned long strbuf_control;
+ unsigned long strbuf_pflush;
+ unsigned long strbuf_fsync;
+ unsigned long strbuf_ctxflush;
+ unsigned long strbuf_ctxmatch_base;
+ unsigned long strbuf_flushflag_pa;
+ volatile unsigned long *strbuf_flushflag;
+ volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)];
+};
+
#endif /* !(_SPARC_IOMMU_H) */
#ifndef __SPARC64_ISA_H
#define __SPARC64_ISA_H
-#include <asm/pbm.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/of_device.h>
struct of_device ofdev;
struct sparc_isa_bridge *next;
struct sparc_isa_device *devices;
- struct pci_pbm_info *parent;
struct pci_dev *self;
int index;
struct device_node *prom_node;
if (!strcmp(edev->prom_node->name, "ecpp"))
return 1;
if (!strcmp(edev->prom_node->name, "parallel")) {
- char *compat;
+ const char *compat;
compat = of_get_property(edev->prom_node,
"compatible", NULL);
-/* $Id: pbm.h,v 1.27 2001/08/12 13:18:23 davem Exp $
- * pbm.h: UltraSparc PCI controller software state.
+/* pbm.h: UltraSparc PCI controller software state.
*
- * Copyright (C) 1997, 1998, 1999 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
*/
#ifndef __SPARC64_PBM_H
* PCI bus.
*/
-struct pci_controller_info;
-
-/* This contains the software state necessary to drive a PCI
- * controller's IOMMU.
- */
-struct pci_iommu_arena {
- unsigned long *map;
- unsigned int hint;
- unsigned int limit;
-};
-
-struct pci_iommu {
- /* This protects the controller's IOMMU and all
- * streaming buffers underneath.
- */
- spinlock_t lock;
-
- struct pci_iommu_arena arena;
-
- /* IOMMU page table, a linear array of ioptes. */
- iopte_t *page_table; /* The page table itself. */
-
- /* Base PCI memory space address where IOMMU mappings
- * begin.
- */
- u32 page_table_map_base;
-
- /* IOMMU Controller Registers */
- unsigned long iommu_control; /* IOMMU control register */
- unsigned long iommu_tsbbase; /* IOMMU page table base register */
- unsigned long iommu_flush; /* IOMMU page flush register */
- unsigned long iommu_ctxflush; /* IOMMU context flush register */
-
- /* This is a register in the PCI controller, which if
- * read will have no side-effects but will guarantee
- * completion of all previous writes into IOMMU/STC.
- */
- unsigned long write_complete_reg;
-
- /* In order to deal with some buggy third-party PCI bridges that
- * do wrong prefetching, we never mark valid mappings as invalid.
- * Instead we point them at this dummy page.
- */
- unsigned long dummy_page;
- unsigned long dummy_page_pa;
-
- /* CTX allocation. */
- unsigned long ctx_lowest_free;
- unsigned long ctx_bitmap[IOMMU_NUM_CTXS / (sizeof(unsigned long) * 8)];
-
- /* Here a PCI controller driver describes the areas of
- * PCI memory space where DMA to/from physical memory
- * are addressed. Drivers interrogate the PCI layer
- * if their device has addressing limitations. They
- * do so via pci_dma_supported, and pass in a mask of
- * DMA address bits their device can actually drive.
- *
- * The test for being usable is:
- * (device_mask & dma_addr_mask) == dma_addr_mask
- */
- u32 dma_addr_mask;
-};
-
-extern void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
-
-/* This describes a PCI bus module's streaming buffer. */
-struct pci_strbuf {
- int strbuf_enabled; /* Present and using it? */
-
- /* Streaming Buffer Control Registers */
- unsigned long strbuf_control; /* STC control register */
- unsigned long strbuf_pflush; /* STC page flush register */
- unsigned long strbuf_fsync; /* STC flush synchronization reg */
- unsigned long strbuf_ctxflush; /* STC context flush register */
- unsigned long strbuf_ctxmatch_base; /* STC context flush match reg */
- unsigned long strbuf_flushflag_pa; /* Physical address of flush flag */
- volatile unsigned long *strbuf_flushflag; /* The flush flag itself */
-
- /* And this is the actual flush flag area.
- * We allocate extra because the chips require
- * a 64-byte aligned area.
- */
- volatile unsigned long __flushflag_buf[(64 + (64 - 1)) / sizeof(long)];
-};
+extern void pci_iommu_table_init(struct iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
#define PCI_STC_FLUSHFLAG_INIT(STC) \
(*((STC)->strbuf_flushflag) = 0UL)
#define PROM_PCIRNG_MAX 64
#define PROM_PCIIMAP_MAX 64
+struct pci_controller_info;
+
struct pci_pbm_info {
/* PCI controller we sit under. */
struct pci_controller_info *parent;
/* OBP specific information. */
struct device_node *prom_node;
- struct linux_prom_pci_ranges *pbm_ranges;
- int num_pbm_ranges;
- struct linux_prom_pci_intmap *pbm_intmap;
- int num_pbm_intmap;
- struct linux_prom_pci_intmask *pbm_intmask;
u64 ino_bitmap;
/* PBM I/O and Memory space resources. */
#endif /* !(CONFIG_PCI_MSI) */
/* This PBM's streaming buffer. */
- struct pci_strbuf stc;
+ struct strbuf stc;
/* IOMMU state, potentially shared by both PBM segments. */
- struct pci_iommu *iommu;
-
- /* PCI slot mapping. */
- unsigned int pci_first_slot;
+ struct iommu *iommu;
/* Now things for the actual PCI bus probes. */
unsigned int pci_first_busno;
*/
int index;
- /* Do the PBMs both exist in the same PCI domain? */
- int pbms_same_domain;
-
/* The PCI bus modules controlled by us. */
struct pci_pbm_info pbm_A;
struct pci_pbm_info pbm_B;
/* Operations which are controller specific. */
void (*scan_bus)(struct pci_controller_info *);
- void (*base_address_update)(struct pci_dev *, int);
- void (*resource_adjust)(struct pci_dev *, struct resource *, struct resource *);
#ifdef CONFIG_PCI_MSI
int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev,
unsigned int pci_last_busno;
};
-/* PCI devices which are not bridges have this placed in their pci_dev
- * sysdata member. This makes OBP aware PCI device drivers easier to
- * code.
- */
-struct pcidev_cookie {
- struct pci_pbm_info *pbm;
- struct device_node *prom_node;
- struct of_device *op;
- struct linux_prom_pci_registers prom_regs[PROMREG_MAX];
- int num_prom_regs;
- struct linux_prom_pci_registers prom_assignments[PROMREG_MAX];
- int num_prom_assignments;
-#ifdef CONFIG_PCI_MSI
- unsigned int msi_num;
-#endif
-};
-
-/* Currently these are the same across all PCI controllers
- * we support. Someday they may not be...
- */
-#define PCI_IRQ_IGN 0x000007c0 /* Interrupt Group Number */
-#define PCI_IRQ_INO 0x0000003f /* Interrupt Number */
-
#endif /* !(__SPARC64_PBM_H) */
void (*dma_sync_sg_for_cpu)(struct pci_dev *, struct scatterlist *, int, int);
};
-extern struct pci_iommu_ops *pci_iommu_ops;
+extern const struct pci_iommu_ops *pci_iommu_ops;
/* Allocate and map kernel buffer using consistent mode DMA for a device.
* hwdev should be valid struct pci_dev pointer for PCI devices.
extern pte_t pgoff_to_pte(unsigned long);
#define PTE_FILE_MAX_BITS (64UL - PAGE_SHIFT - 1UL)
-extern unsigned long prom_virt_to_phys(unsigned long, int *);
-
-extern unsigned long sun4u_get_pte(unsigned long);
-
-static inline unsigned long __get_phys(unsigned long addr)
-{
- return sun4u_get_pte(addr);
-}
-
-static inline int __get_iospace(unsigned long addr)
-{
- return ((sun4u_get_pte(addr) & 0xf0000000) >> 28);
-}
-
extern unsigned long *sparc64_valid_addr_bitmap;
/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
extern void sun4v_register_fault_status(void);
extern void sun4v_ktsb_register(void);
+extern unsigned long cmdline_memory_size;
+
#endif /* !(__ASSEMBLY__) */
#endif /* !(_SPARC64_PGTABLE_H) */
struct of_irq_controller;
struct device_node {
- char *name;
- char *type;
+ const char *name;
+ const char *type;
phandle node;
char *path_component_name;
char *full_name;
extern struct device_node *of_get_parent(const struct device_node *node);
extern struct device_node *of_get_next_child(const struct device_node *node,
struct device_node *prev);
-extern struct property *of_find_property(struct device_node *np,
+extern struct property *of_find_property(const struct device_node *np,
const char *name,
int *lenp);
-extern int of_device_is_compatible(struct device_node *device, const char *);
-extern void *of_get_property(struct device_node *node, const char *name,
+extern int of_device_is_compatible(const struct device_node *device,
+ const char *);
+extern const void *of_get_property(const struct device_node *node,
+ const char *name,
int *lenp);
#define get_property(node,name,lenp) of_get_property(node,name,lenp)
extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
#define raw_smp_processor_id() (current_thread_info()->cpu)
extern void smp_setup_cpu_possible_map(void);
+extern unsigned char boot_cpu_id;
#endif /* !(__ASSEMBLY__) */
#else
#define smp_setup_cpu_possible_map() do { } while (0)
+#define boot_cpu_id (0)
#endif /* !(CONFIG_SMP) */
-#define NO_PROC_ID 0xFF
-
#endif /* !(_SPARC64_SMP_H) */
#define SO_PEERSEC 0x001e
#define SO_PASSSEC 0x001f
+#define SO_TIMESTAMPNS 0x0021
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* !(_ASM_SPARC64_SOCKIOS_H) */
#ifdef __KERNEL__
-#define SECTION_SIZE_BITS 26
+#define SECTION_SIZE_BITS 31
#define MAX_PHYSADDR_BITS 42
#define MAX_PHYSMEM_BITS 42
struct sparc64_tick_ops {
- void (*init_tick)(unsigned long);
unsigned long (*get_tick)(void);
- unsigned long (*get_compare)(void);
- unsigned long (*add_tick)(unsigned long, unsigned long);
- unsigned long (*add_compare)(unsigned long);
+ int (*add_compare)(unsigned long);
unsigned long softint_mask;
+ void (*disable_irq)(void);
+
+ void (*init_tick)(void);
+ unsigned long (*add_tick)(unsigned long);
+
+ char *name;
};
extern struct sparc64_tick_ops *tick_ops;
-#ifdef CONFIG_SMP
-extern unsigned long timer_tick_offset;
-struct pt_regs;
-extern void timer_tick_interrupt(struct pt_regs *);
-#endif
-
extern unsigned long sparc64_get_clock_tick(unsigned int cpu);
#endif /* _SPARC64_TIMER_H */
ba,a,pt %xcc, rtrap_irq; \
.previous;
-#define TICK_SMP_IRQ \
- rdpr %pil, %g2; \
- wrpr %g0, 15, %pil; \
- sethi %hi(1f-4), %g7; \
- ba,pt %xcc, etrap_irq; \
- or %g7, %lo(1f-4), %g7; \
- nop; \
- nop; \
- nop; \
- .subsection 2; \
-1: call trace_hardirqs_off; \
- nop; \
- call smp_percpu_timer_interrupt; \
- add %sp, PTREGS_OFF, %o0; \
- ba,a,pt %xcc, rtrap_irq; \
- .previous;
-
#else
#define TRAP_IRQ(routine, level) \
add %sp, PTREGS_OFF, %o1; \
ba,a,pt %xcc, rtrap_irq;
-#define TICK_SMP_IRQ \
- rdpr %pil, %g2; \
- wrpr %g0, 15, %pil; \
- sethi %hi(109f), %g7; \
- ba,pt %xcc, etrap_irq; \
-109: or %g7, %lo(109b), %g7; \
- call smp_percpu_timer_interrupt; \
- add %sp, PTREGS_OFF, %o0; \
- ba,a,pt %xcc, rtrap_irq;
-
#endif
#define TRAP_IVEC TRAP_NOSAVE(do_ivec)
#include "asm/arch/div64.h"
+extern uint64_t div64_64(uint64_t dividend, uint64_t divisor);
#endif
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* __V850_SOCKET_H__ */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* __V850_SOCKIOS_H__ */
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _ASM_SOCKET_H */
#define FIOGETOWN 0x8903
#define SIOCGPGRP 0x8904
#define SIOCATMARK 0x8905
-#define SIOCGSTAMP 0x8906 /* Get stamp */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif
#ifndef _XTENSA_DIV64_H
#define _XTENSA_DIV64_H
+#include <linux/types.h>
+
#define do_div(n,base) ({ \
int __res = n % ((unsigned int) base); \
n /= (unsigned int) base; \
__res; })
+static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor)
+{
+ return dividend / divisor;
+}
#endif
#define SO_ACCEPTCONN 30
#define SO_PEERSEC 31
#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
#endif /* _XTENSA_SOCKET_H */
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP 0x8906 /* Get stamp - linux-specific */
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
#endif /* _XTENSA_SOCKIOS_H */
--- /dev/null
+/* RxRPC key type
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _KEYS_RXRPC_TYPE_H
+#define _KEYS_RXRPC_TYPE_H
+
+#include <linux/key.h>
+
+/*
+ * key type for AF_RXRPC keys
+ */
+extern struct key_type key_type_rxrpc;
+
+#endif /* _KEYS_USER_TYPE_H */
header-y += hysdn_if.h
header-y += i2c-dev.h
header-y += i8k.h
-header-y += icmp.h
header-y += if_arcnet.h
-header-y += if_arp.h
header-y += if_bonding.h
header-y += if_cablemodem.h
header-y += if_fc.h
header-y += in6.h
header-y += in_route.h
header-y += ioctl.h
-header-y += ip.h
header-y += ipmi_msgdefs.h
header-y += ip_mp_alg.h
header-y += ipsec.h
header-y += nfs2.h
header-y += nfs4_mount.h
header-y += nfs_mount.h
+header-y += nl80211.h
header-y += oom.h
header-y += param.h
header-y += pci_regs.h
unifdef-y += hpet.h
unifdef-y += i2c.h
unifdef-y += i2o-dev.h
+unifdef-y += icmp.h
unifdef-y += icmpv6.h
unifdef-y += if_addr.h
+unifdef-y += if_arp.h
unifdef-y += if_bridge.h
unifdef-y += if_ec.h
unifdef-y += if_eql.h
unifdef-y += in.h
unifdef-y += inotify.h
unifdef-y += input.h
+unifdef-y += ip.h
unifdef-y += ipc.h
unifdef-y += ipmi.h
unifdef-y += ipv6.h
static __inline__ struct ddpehdr *ddp_hdr(struct sk_buff *skb)
{
- return (struct ddpehdr *)skb->h.raw;
+ return (struct ddpehdr *)skb_transport_header(skb);
}
/* AppleTalk AARP headers */
static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb)
{
- return (struct elapaarp *)skb->h.raw;
+ return (struct elapaarp *)skb_transport_header(skb);
}
/* Not specified - how long till we drop a resolved entry */
static inline struct dccp_hdr *dccp_hdr(const struct sk_buff *skb)
{
- return (struct dccp_hdr *)skb->h.raw;
+ return (struct dccp_hdr *)skb_transport_header(skb);
}
static inline struct dccp_hdr *dccp_zeroed_hdr(struct sk_buff *skb, int headlen)
{
- skb->h.raw = skb_push(skb, headlen);
- memset(skb->h.raw, 0, headlen);
- return dccp_hdr(skb);
+ skb_push(skb, headlen);
+ skb_reset_transport_header(skb);
+ return memset(skb_transport_header(skb), 0, headlen);
}
static inline struct dccp_hdr_ext *dccp_hdrx(const struct sk_buff *skb)
{
- return (struct dccp_hdr_ext *)(skb->h.raw + sizeof(struct dccp_hdr));
+ return (struct dccp_hdr_ext *)(skb_transport_header(skb) +
+ sizeof(struct dccp_hdr));
}
static inline unsigned int __dccp_basic_hdr_len(const struct dccp_hdr *dh)
static inline struct dccp_hdr_request *dccp_hdr_request(struct sk_buff *skb)
{
- return (struct dccp_hdr_request *)(skb->h.raw + dccp_basic_hdr_len(skb));
+ return (struct dccp_hdr_request *)(skb_transport_header(skb) +
+ dccp_basic_hdr_len(skb));
}
static inline struct dccp_hdr_ack_bits *dccp_hdr_ack_bits(const struct sk_buff *skb)
{
- return (struct dccp_hdr_ack_bits *)(skb->h.raw + dccp_basic_hdr_len(skb));
+ return (struct dccp_hdr_ack_bits *)(skb_transport_header(skb) +
+ dccp_basic_hdr_len(skb));
}
static inline u64 dccp_hdr_ack_seq(const struct sk_buff *skb)
static inline struct dccp_hdr_response *dccp_hdr_response(struct sk_buff *skb)
{
- return (struct dccp_hdr_response *)(skb->h.raw + dccp_basic_hdr_len(skb));
+ return (struct dccp_hdr_response *)(skb_transport_header(skb) +
+ dccp_basic_hdr_len(skb));
}
static inline struct dccp_hdr_reset *dccp_hdr_reset(struct sk_buff *skb)
{
- return (struct dccp_hdr_reset *)(skb->h.raw + dccp_basic_hdr_len(skb));
+ return (struct dccp_hdr_reset *)(skb_transport_header(skb) +
+ dccp_basic_hdr_len(skb));
}
static inline unsigned int __dccp_hdr_len(const struct dccp_hdr *dh)
* @dccps_service_list - second .. last service code on passive socket
* @dccps_timestamp_time - time of latest TIMESTAMP option
* @dccps_timestamp_echo - latest timestamp received on a TIMESTAMP option
- * @dccps_l_ack_ratio -
- * @dccps_r_ack_ratio -
+ * @dccps_l_ack_ratio - feature-local Ack Ratio
+ * @dccps_r_ack_ratio - feature-remote Ack Ratio
* @dccps_pcslen - sender partial checksum coverage (via sockopt)
* @dccps_pcrlen - receiver partial checksum coverage (via sockopt)
* @dccps_ndp_count - number of Non Data Packets since last data packet
- * @dccps_mss_cache -
- * @dccps_minisock -
+ * @dccps_mss_cache - current value of MSS (path MTU minus header sizes)
+ * @dccps_minisock - associated minisock (accessed via dccp_msk)
* @dccps_hc_rx_ackvec - rx half connection ack vector
- * @dccps_hc_rx_ccid -
- * @dccps_hc_tx_ccid -
- * @dccps_options_received -
- * @dccps_epoch -
- * @dccps_role - Role of this sock, one of %dccp_role
- * @dccps_hc_rx_insert_options -
- * @dccps_hc_tx_insert_options -
+ * @dccps_hc_rx_ccid - CCID used for the receiver (or receiving half-connection)
+ * @dccps_hc_tx_ccid - CCID used for the sender (or sending half-connection)
+ * @dccps_options_received - parsed set of retrieved options
+ * @dccps_role - role of this sock, one of %dccp_role
+ * @dccps_hc_rx_insert_options - receiver wants to add options when acking
+ * @dccps_hc_tx_insert_options - sender wants to add options when sending
* @dccps_xmit_timer - timer for when CCID is not ready to send
+ * @dccps_syn_rtt - RTT sample from Request/Response exchange (in usecs)
*/
struct dccp_sock {
/* inet_connection_sock has to be the first member of dccp_sock */
struct inet_connection_sock dccps_inet_connection;
+#define dccps_syn_rtt dccps_inet_connection.icsk_ack.lrcvtime
__u64 dccps_swl;
__u64 dccps_swh;
__u64 dccps_awl;
#include <linux/rtnetlink.h>
/* rule is permanent, and cannot be deleted */
-#define FIB_RULE_PERMANENT 1
-#define FIB_RULE_INVERT 2
+#define FIB_RULE_PERMANENT 0x00000001
+#define FIB_RULE_INVERT 0x00000002
+#define FIB_RULE_UNRESOLVED 0x00000004
+#define FIB_RULE_DEV_DETACHED 0x00000008
+
+/* try to find source address in routing lookups */
+#define FIB_RULE_FIND_SADDR 0x00010000
struct fib_rule_hdr
{
FRA_DST, /* destination address */
FRA_SRC, /* source address */
FRA_IFNAME, /* interface name */
- FRA_UNUSED1,
+ FRA_GOTO, /* target to jump to (FR_ACT_GOTO) */
FRA_UNUSED2,
FRA_PRIORITY, /* priority/preference */
FRA_UNUSED3,
{
FR_ACT_UNSPEC,
FR_ACT_TO_TBL, /* Pass to fixed table */
- FR_ACT_RES1,
- FR_ACT_RES2,
+ FR_ACT_GOTO, /* Jump to another rule */
+ FR_ACT_NOP, /* No operation */
FR_ACT_RES3,
FR_ACT_RES4,
FR_ACT_BLACKHOLE, /* Drop without notification */
{
hdlc_device *hdlc = dev_to_hdlc(dev);
- skb->mac.raw = skb->data;
- skb->dev = dev;
+ skb->dev = dev;
+ skb_reset_mac_header(skb);
if (hdlc->proto->type_trans)
return hdlc->proto->type_trans(skb, dev);
} un;
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
+{
+ return (struct icmphdr *)skb_transport_header(skb);
+}
+#endif
+
/*
* constants for (set|get)sockopt
*/
#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
+{
+ return (struct icmp6hdr *)skb_transport_header(skb);
+}
+#endif
+
#define ICMPV6_ROUTER_PREF_LOW 0x3
#define ICMPV6_ROUTER_PREF_MEDIUM 0x0
#define ICMPV6_ROUTER_PREF_HIGH 0x1
#define IFA_F_TEMPORARY IFA_F_SECONDARY
#define IFA_F_NODAD 0x02
+#define IFA_F_OPTIMISTIC 0x04
#define IFA_F_HOMEADDRESS 0x10
#define IFA_F_DEPRECATED 0x20
#define IFA_F_TENTATIVE 0x40
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct arphdr *arp_hdr(const struct sk_buff *skb)
+{
+ return (struct arphdr *)skb_network_header(skb);
+}
+#endif
+
#endif /* _LINUX_IF_ARP_H */
#include <linux/netdevice.h>
extern void brioctl_set(int (*ioctl_hook)(unsigned int, void __user *));
-extern int (*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff **pskb);
+extern struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
+ struct sk_buff *skb);
extern int (*br_should_route_hook)(struct sk_buff **pskb);
#endif
#define ETH_P_8021Q 0x8100 /* 802.1Q VLAN Extended Header */
#define ETH_P_IPX 0x8137 /* IPX over DIX */
#define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */
+#define ETH_P_PAUSE 0x8808 /* IEEE Pause frames. See 802.3 31B */
#define ETH_P_SLOW 0x8809 /* Slow Protocol. See 802.3ad 43B */
#define ETH_P_WCCP 0x883E /* Web-cache coordination protocol
* defined in draft-wilson-wrec-wccp-v2-00.txt */
static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
{
- return (struct ethhdr *)skb->mac.raw;
+ return (struct ethhdr *)skb_mac_header(skb);
}
#ifdef CONFIG_SYSCTL
IFLA_INET6_STATS, /* statistics */
IFLA_INET6_MCAST, /* MC things. What of them? */
IFLA_INET6_CACHEINFO, /* time values and max reasm size */
+ IFLA_INET6_ICMP6STATS, /* statistics (icmpv6) */
__IFLA_INET6_MAX
};
#define PACKET_STATISTICS 6
#define PACKET_COPY_THRESH 7
#define PACKET_AUXDATA 8
+#define PACKET_ORIGDEV 9
struct tpacket_stats
{
struct pppoe_tag tag[0];
} __attribute__ ((packed));
+/* Length of entire PPPoE + PPP header */
+#define PPPOE_SES_HLEN 8
+
#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb)
+{
+ return (struct pppoe_hdr *)skb_network_header(skb);
+}
+
struct pppoe_opt {
struct net_device *dev; /* device associated with socket*/
int ifindex; /* ifindex of device associated with socket */
static inline struct trh_hdr *tr_hdr(const struct sk_buff *skb)
{
- return (struct trh_hdr *)skb->mac.raw;
+ return (struct trh_hdr *)skb_mac_header(skb);
}
#ifdef CONFIG_SYSCTL
extern struct ctl_table tr_table[];
static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb)
{
- return (struct vlan_ethhdr *)skb->mac.raw;
+ return (struct vlan_ethhdr *)skb_mac_header(skb);
}
struct vlan_hdr {
veth->h_vlan_TCI = htons(tag);
skb->protocol = __constant_htons(ETH_P_8021Q);
- skb->mac.raw -= VLAN_HLEN;
- skb->nh.raw -= VLAN_HLEN;
+ skb->mac_header -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
return skb;
}
+++ /dev/null
-/*****************************************************************************
-* if_wanipe_common.h Sangoma Driver/Socket common area definitions.
-*
-* Author: Nenad Corbic <ncorbic@sangoma.com>
-*
-* Copyright: (c) 2000 Sangoma Technologies Inc.
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* as published by the Free Software Foundation; either version
-* 2 of the License, or (at your option) any later version.
-* ============================================================================
-* Jan 13, 2000 Nenad Corbic Initial version
-*****************************************************************************/
-
-
-#ifndef _WANPIPE_SOCK_DRIVER_COMMON_H
-#define _WANPIPE_SOCK_DRIVER_COMMON_H
-
-typedef struct {
- struct net_device *slave;
- atomic_t packet_sent;
- atomic_t receive_block;
- atomic_t command;
- atomic_t disconnect;
- atomic_t driver_busy;
- long common_critical;
- struct timer_list *tx_timer;
- struct sock *sk; /* Wanpipe Sock bind's here */
- int (*func)(struct sk_buff *skb, struct net_device *dev,
- struct sock *sk);
-
- struct work_struct wanpipe_work; /* deferred keventd work */
- unsigned char rw_bind; /* Sock bind state */
- unsigned char usedby;
- unsigned char state;
- unsigned char svc;
- unsigned short lcn;
- void *mbox;
-} wanpipe_common_t;
-
-
-enum {
- WANSOCK_UNCONFIGURED, /* link/channel is not configured */
- WANSOCK_DISCONNECTED, /* link/channel is disconnected */
- WANSOCK_CONNECTING, /* connection is in progress */
- WANSOCK_CONNECTED, /* link/channel is operational */
- WANSOCK_LIMIT, /* for verification only */
- WANSOCK_DUALPORT, /* for Dual Port cards */
- WANSOCK_DISCONNECTING,
- WANSOCK_BINDED,
- WANSOCK_BIND_LISTEN,
- WANSOCK_LISTEN
-};
-
-#endif
-
-
__be32 srcs[0];
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct igmphdr *igmp_hdr(const struct sk_buff *skb)
+{
+ return (struct igmphdr *)skb_transport_header(skb);
+}
+
+static inline struct igmpv3_report *
+ igmpv3_report_hdr(const struct sk_buff *skb)
+{
+ return (struct igmpv3_report *)skb_transport_header(skb);
+}
+
+static inline struct igmpv3_query *
+ igmpv3_query_hdr(const struct sk_buff *skb)
+{
+ return (struct igmpv3_query *)skb_transport_header(skb);
+}
+#endif
+
#define IGMP_HOST_MEMBERSHIP_QUERY 0x11 /* From RFC1112 */
#define IGMP_HOST_MEMBERSHIP_REPORT 0x12 /* Ditto */
#define IGMP_DVMRP 0x13 /* DVMRP routing */
#define IP_PMTUDISC_DONT 0 /* Never send DF frames */
#define IP_PMTUDISC_WANT 1 /* Use per route hints */
#define IP_PMTUDISC_DO 2 /* Always DF */
+#define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu */
#define IP_MULTICAST_IF 32
#define IP_MULTICAST_TTL 33
* NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined
* in network byte order, not in host byte order as are the IPv4 equivalents
*/
-#if 0
extern const struct in6_addr in6addr_any;
#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
-#endif
extern const struct in6_addr in6addr_loopback;
#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
#define IPV6_PMTUDISC_DONT 0
#define IPV6_PMTUDISC_WANT 1
#define IPV6_PMTUDISC_DO 2
+#define IPV6_PMTUDISC_PROBE 3
/* Flowlabel */
#define IPV6_FLOWLABEL_MGR 32
/*The options start here. */
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct iphdr *ip_hdr(const struct sk_buff *skb)
+{
+ return (struct iphdr *)skb_network_header(skb);
+}
+
+static inline struct iphdr *ipip_hdr(const struct sk_buff *skb)
+{
+ return (struct iphdr *)skb_transport_header(skb);
+}
+#endif
+
struct ip_auth_hdr {
__u8 nexthdr;
__u8 hdrlen; /* This one is measured in 32 bit units! */
#endif
#endif
__s32 proxy_ndp;
+ __s32 accept_source_route;
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ __s32 optimistic_dad;
+#endif
void *sysctl;
};
DEVCONF_RTR_PROBE_INTERVAL,
DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN,
DEVCONF_PROXY_NDP,
+ __DEVCONF_OPTIMISTIC_DAD,
+ DEVCONF_ACCEPT_SOURCE_ROUTE,
+ DEVCONF_OPTIMISTIC_DAD,
DEVCONF_MAX
};
#include <net/if_inet6.h> /* struct ipv6_mc_socklist */
#include <net/inet_sock.h>
+static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb)
+{
+ return (struct ipv6hdr *)skb_network_header(skb);
+}
+
+static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb)
+{
+ return (struct ipv6hdr *)skb_transport_header(skb);
+}
+
/*
This structure contains results of exthdrs parsing
as offsets from skb->nh.
/* A special optimized version that handles 1 or more of u32s.
* The length parameter here is the number of u32s in the key.
*/
-static inline u32 jhash2(u32 *k, u32 length, u32 initval)
+static inline u32 jhash2(const u32 *k, u32 length, u32 initval)
{
u32 a, b, c, len;
*/
union {
struct list_head link;
+ unsigned long x[2];
+ void *p[2];
} type_data;
/* key data
#endif
+static inline s64 ktime_to_us(const ktime_t kt)
+{
+ struct timeval tv = ktime_to_timeval(kt);
+ return (s64) tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
+}
+
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an
struct poll_table_struct;
struct inode;
-#define NPROTO 33 /* should be enough for now.. */
+#define NPROTO 34 /* should be enough for now.. */
#define SYS_SOCKET 1 /* sys_socket(2) */
#define SYS_BIND 2 /* sys_bind(2) */
struct vlan_group;
struct ethtool_ops;
struct netpoll_info;
+/* 802.11 specific */
+struct wireless_dev;
/* source back-compat hooks */
#define SET_ETHTOOL_OPS(netdev,ops) \
( (netdev)->ethtool_ops = (ops) )
#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */
#define NETIF_F_GSO 2048 /* Enable software GSO. */
#define NETIF_F_LLTX 4096 /* LockLess TX */
+#define NETIF_F_INTERNAL_STATS 8192 /* Use stats structure in net_device */
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
struct net_device_stats* (*get_stats)(struct net_device *dev);
+ struct net_device_stats stats;
+#ifdef CONFIG_WIRELESS_EXT
/* List of functions to handle Wireless Extensions (instead of ioctl).
* See <net/iw_handler.h> for details. Jean II */
const struct iw_handler_def * wireless_handlers;
/* Instance data managed by the core of Wireless Extensions. */
struct iw_public_data * wireless_data;
-
+#endif
const struct ethtool_ops *ethtool_ops;
/*
void *ip6_ptr; /* IPv6 specific data */
void *ec_ptr; /* Econet specific data */
void *ax25_ptr; /* AX.25 specific data */
+ struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data,
+ assign before registering */
/*
* Cache line mostly used on receive path (including eth_type_trans())
struct nf_info *info,
unsigned int verdict);
-extern void (*ip_ct_attach)(struct sk_buff *, struct sk_buff *);
-extern void nf_ct_attach(struct sk_buff *, struct sk_buff *);
-
/* FIXME: Before cache is ever used, this must be implemented for real. */
extern void nf_invalidate_cache(int pf);
{
return 1;
}
-static inline void nf_ct_attach(struct sk_buff *new, struct sk_buff *skb) {}
struct flowi;
static inline void
nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, int family) {}
#endif /*CONFIG_NETFILTER*/
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+extern void (*ip_ct_attach)(struct sk_buff *, struct sk_buff *);
+extern void nf_ct_attach(struct sk_buff *, struct sk_buff *);
+extern void (*nf_ct_destroy)(struct nf_conntrack *);
+#else
+static inline void nf_ct_attach(struct sk_buff *new, struct sk_buff *skb) {}
+#endif
+
#endif /*__KERNEL__*/
#endif /*__LINUX_NETFILTER_H*/
/* Be liberal in window checking */
#define IP_CT_TCP_FLAG_BE_LIBERAL 0x08
+struct nf_ct_tcp_flags {
+ u_int8_t flags;
+ u_int8_t mask;
+};
+
#ifdef __KERNEL__
struct ip_ct_tcp_state {
#define NFA_DATA(nfa) ((void *)(((char *)(nfa)) + NFA_LENGTH(0)))
#define NFA_PAYLOAD(nfa) ((int)((nfa)->nfa_len) - NFA_LENGTH(0))
#define NFA_NEST(skb, type) \
-({ struct nfattr *__start = (struct nfattr *) (skb)->tail; \
+({ struct nfattr *__start = (struct nfattr *)skb_tail_pointer(skb); \
NFA_PUT(skb, (NFNL_NFA_NEST | type), 0, NULL); \
__start; })
#define NFA_NEST_END(skb, start) \
-({ (start)->nfa_len = ((skb)->tail - (unsigned char *) (start)); \
+({ (start)->nfa_len = skb_tail_pointer(skb) - (unsigned char *)(start); \
(skb)->len; })
#define NFA_NEST_CANCEL(skb, start) \
({ if (start) \
struct nfnl_callback
{
int (*call)(struct sock *nl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp);
+ struct nlmsghdr *nlh, struct nfattr *cda[]);
u_int16_t attr_count; /* number of nfattr's */
};
({ if (skb_tailroom(skb) < (int)NFA_SPACE(attrlen)) goto nfattr_failure; \
__nfa_fill(skb, attrtype, attrlen, data); })
-extern struct semaphore nfnl_sem;
-
-#define nfnl_shlock() down(&nfnl_sem)
-#define nfnl_shlock_nowait() down_trylock(&nfnl_sem)
-
-#define nfnl_shunlock() do { up(&nfnl_sem); \
- if(nfnl && nfnl->sk_receive_queue.qlen) \
- nfnl->sk_data_ready(nfnl, 0); \
- } while(0)
-
-extern void nfnl_lock(void);
-extern void nfnl_unlock(void);
-
extern int nfnetlink_subsys_register(struct nfnetlink_subsystem *n);
extern int nfnetlink_subsys_unregister(struct nfnetlink_subsystem *n);
enum ctattr_protoinfo_tcp {
CTA_PROTOINFO_TCP_UNSPEC,
CTA_PROTOINFO_TCP_STATE,
+ CTA_PROTOINFO_TCP_WSCALE_ORIGINAL,
+ CTA_PROTOINFO_TCP_WSCALE_REPLY,
+ CTA_PROTOINFO_TCP_FLAGS_ORIGINAL,
+ CTA_PROTOINFO_TCP_FLAGS_REPLY,
__CTA_PROTOINFO_TCP_MAX
};
#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
#include <linux/netfilter.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
+#include <linux/if_pppox.h>
/* Bridge Hooks */
/* After promisc drops, checksum checks. */
* enough room for the encapsulating header (if there is one). */
static inline int nf_bridge_pad(const struct sk_buff *skb)
{
- return (skb->nf_bridge && skb->protocol == htons(ETH_P_8021Q))
- ? VLAN_HLEN : 0;
+ int padding = 0;
+
+ if (skb->nf_bridge && skb->protocol == htons(ETH_P_8021Q))
+ padding = VLAN_HLEN;
+ else if (skb->nf_bridge && skb->protocol == htons(ETH_P_PPP_SES))
+ padding = PPPOE_SES_HLEN;
+
+ return padding;
}
struct bridge_skb_cb {
static inline struct ebt_802_3_hdr *ebt_802_3_hdr(const struct sk_buff *skb)
{
- return (struct ebt_802_3_hdr *)skb->mac.raw;
+ return (struct ebt_802_3_hdr *)skb_mac_header(skb);
}
#endif
#define EBT_ARP_DST_IP 0x10
#define EBT_ARP_SRC_MAC 0x20
#define EBT_ARP_DST_MAC 0x40
+#define EBT_ARP_GRAT 0x80
#define EBT_ARP_MASK (EBT_ARP_OPCODE | EBT_ARP_HTYPE | EBT_ARP_PTYPE | \
- EBT_ARP_SRC_IP | EBT_ARP_DST_IP | EBT_ARP_SRC_MAC | EBT_ARP_DST_MAC)
+ EBT_ARP_SRC_IP | EBT_ARP_DST_IP | EBT_ARP_SRC_MAC | EBT_ARP_DST_MAC | \
+ EBT_ARP_GRAT)
#define EBT_ARP_MATCH "arp"
struct ebt_arp_info
-header-y += ip_conntrack_helper.h
-header-y += ip_conntrack_protocol.h
-header-y += ip_conntrack_sctp.h
-header-y += ip_conntrack_tcp.h
-header-y += ip_conntrack_tftp.h
-header-y += ip_nat_pptp.h
header-y += ipt_addrtype.h
header-y += ipt_ah.h
header-y += ipt_CLASSIFY.h
header-y += ipt_TTL.h
header-y += ipt_ULOG.h
-unifdef-y += ip_conntrack.h
-unifdef-y += ip_conntrack_h323.h
-unifdef-y += ip_conntrack_irc.h
-unifdef-y += ip_conntrack_pptp.h
-unifdef-y += ip_conntrack_proto_gre.h
-unifdef-y += ip_conntrack_tuple.h
-unifdef-y += ip_nat.h
-unifdef-y += ip_nat_rule.h
unifdef-y += ip_queue.h
unifdef-y += ip_tables.h
+++ /dev/null
-#ifndef _IP_CONNTRACK_H
-#define _IP_CONNTRACK_H
-
-#include <linux/netfilter/nf_conntrack_common.h>
-
-#ifdef __KERNEL__
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#include <linux/bitops.h>
-#include <linux/compiler.h>
-#include <asm/atomic.h>
-
-#include <linux/timer.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tcp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_icmp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_sctp.h>
-
-/* per conntrack: protocol private data */
-union ip_conntrack_proto {
- /* insert conntrack proto private data here */
- struct ip_ct_gre gre;
- struct ip_ct_sctp sctp;
- struct ip_ct_tcp tcp;
- struct ip_ct_icmp icmp;
-};
-
-union ip_conntrack_expect_proto {
- /* insert expect proto private data here */
-};
-
-/* Add protocol helper include file here */
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
-#include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-
-/* per conntrack: application helper private data */
-union ip_conntrack_help {
- /* insert conntrack helper private data (master) here */
- struct ip_ct_h323_master ct_h323_info;
- struct ip_ct_pptp_master ct_pptp_info;
- struct ip_ct_ftp_master ct_ftp_info;
- struct ip_ct_irc_master ct_irc_info;
-};
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_pptp.h>
-
-/* per conntrack: nat application helper private data */
-union ip_conntrack_nat_help {
- /* insert nat helper private data here */
- struct ip_nat_pptp nat_pptp_info;
-};
-#endif
-
-#include <linux/types.h>
-#include <linux/skbuff.h>
-
-#ifdef CONFIG_NETFILTER_DEBUG
-#define IP_NF_ASSERT(x) \
-do { \
- if (!(x)) \
- /* Wooah! I'm tripping my conntrack in a frenzy of \
- netplay... */ \
- printk("NF_IP_ASSERT: %s:%i(%s)\n", \
- __FILE__, __LINE__, __FUNCTION__); \
-} while(0)
-#else
-#define IP_NF_ASSERT(x)
-#endif
-
-struct ip_conntrack_helper;
-
-struct ip_conntrack
-{
- /* Usage count in here is 1 for hash table/destruct timer, 1 per skb,
- plus 1 for any connection(s) we are `master' for */
- struct nf_conntrack ct_general;
-
- /* Have we seen traffic both ways yet? (bitset) */
- unsigned long status;
-
- /* Timer function; drops refcnt when it goes off. */
- struct timer_list timeout;
-
-#ifdef CONFIG_IP_NF_CT_ACCT
- /* Accounting Information (same cache line as other written members) */
- struct ip_conntrack_counter counters[IP_CT_DIR_MAX];
-#endif
- /* If we were expected by an expectation, this will be it */
- struct ip_conntrack *master;
-
- /* Current number of expected connections */
- unsigned int expecting;
-
- /* Unique ID that identifies this conntrack*/
- unsigned int id;
-
- /* Helper, if any. */
- struct ip_conntrack_helper *helper;
-
- /* Storage reserved for other modules: */
- union ip_conntrack_proto proto;
-
- union ip_conntrack_help help;
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
- struct {
- struct ip_nat_info info;
- union ip_conntrack_nat_help help;
-#if defined(CONFIG_IP_NF_TARGET_MASQUERADE) || \
- defined(CONFIG_IP_NF_TARGET_MASQUERADE_MODULE)
- int masq_index;
-#endif
- } nat;
-#endif /* CONFIG_IP_NF_NAT_NEEDED */
-
-#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
- u_int32_t mark;
-#endif
-
-#ifdef CONFIG_IP_NF_CONNTRACK_SECMARK
- u_int32_t secmark;
-#endif
-
- /* Traversed often, so hopefully in different cacheline to top */
- /* These are my tuples; original and reply */
- struct ip_conntrack_tuple_hash tuplehash[IP_CT_DIR_MAX];
-};
-
-struct ip_conntrack_expect
-{
- /* Internal linked list (global expectation list) */
- struct list_head list;
-
- /* We expect this tuple, with the following mask */
- struct ip_conntrack_tuple tuple, mask;
-
- /* Function to call after setup and insertion */
- void (*expectfn)(struct ip_conntrack *new,
- struct ip_conntrack_expect *this);
-
- /* The conntrack of the master connection */
- struct ip_conntrack *master;
-
- /* Timer function; deletes the expectation. */
- struct timer_list timeout;
-
- /* Usage count. */
- atomic_t use;
-
- /* Unique ID */
- unsigned int id;
-
- /* Flags */
- unsigned int flags;
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
- __be32 saved_ip;
- /* This is the original per-proto part, used to map the
- * expected connection the way the recipient expects. */
- union ip_conntrack_manip_proto saved_proto;
- /* Direction relative to the master connection. */
- enum ip_conntrack_dir dir;
-#endif
-};
-
-#define IP_CT_EXPECT_PERMANENT 0x1
-
-static inline struct ip_conntrack *
-tuplehash_to_ctrack(const struct ip_conntrack_tuple_hash *hash)
-{
- return container_of(hash, struct ip_conntrack,
- tuplehash[hash->tuple.dst.dir]);
-}
-
-/* get master conntrack via master expectation */
-#define master_ct(conntr) (conntr->master)
-
-/* Alter reply tuple (maybe alter helper). */
-extern void
-ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
- const struct ip_conntrack_tuple *newreply);
-
-/* Is this tuple taken? (ignoring any belonging to the given
- conntrack). */
-extern int
-ip_conntrack_tuple_taken(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack);
-
-/* Return conntrack_info and tuple hash for given skb. */
-static inline struct ip_conntrack *
-ip_conntrack_get(const struct sk_buff *skb, enum ip_conntrack_info *ctinfo)
-{
- *ctinfo = skb->nfctinfo;
- return (struct ip_conntrack *)skb->nfct;
-}
-
-/* decrement reference count on a conntrack */
-static inline void
-ip_conntrack_put(struct ip_conntrack *ct)
-{
- IP_NF_ASSERT(ct);
- nf_conntrack_put(&ct->ct_general);
-}
-
-extern int invert_tuplepr(struct ip_conntrack_tuple *inverse,
- const struct ip_conntrack_tuple *orig);
-
-extern void __ip_ct_refresh_acct(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- const struct sk_buff *skb,
- unsigned long extra_jiffies,
- int do_acct);
-
-/* Refresh conntrack for this many jiffies and do accounting */
-static inline void ip_ct_refresh_acct(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- const struct sk_buff *skb,
- unsigned long extra_jiffies)
-{
- __ip_ct_refresh_acct(ct, ctinfo, skb, extra_jiffies, 1);
-}
-
-/* Refresh conntrack for this many jiffies */
-static inline void ip_ct_refresh(struct ip_conntrack *ct,
- const struct sk_buff *skb,
- unsigned long extra_jiffies)
-{
- __ip_ct_refresh_acct(ct, 0, skb, extra_jiffies, 0);
-}
-
-/* These are for NAT. Icky. */
-/* Update TCP window tracking data when NAT mangles the packet */
-extern void ip_conntrack_tcp_update(struct sk_buff *skb,
- struct ip_conntrack *conntrack,
- enum ip_conntrack_dir dir);
-
-/* Call me when a conntrack is destroyed. */
-extern void (*ip_conntrack_destroyed)(struct ip_conntrack *conntrack);
-
-/* Fake conntrack entry for untracked connections */
-extern struct ip_conntrack ip_conntrack_untracked;
-
-/* Returns new sk_buff, or NULL */
-struct sk_buff *
-ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user);
-
-/* Iterate over all conntracks: if iter returns true, it's deleted. */
-extern void
-ip_ct_iterate_cleanup(int (*iter)(struct ip_conntrack *i, void *data),
- void *data);
-
-extern struct ip_conntrack_helper *
-__ip_conntrack_helper_find_byname(const char *);
-extern struct ip_conntrack_helper *
-ip_conntrack_helper_find_get(const struct ip_conntrack_tuple *tuple);
-extern void ip_conntrack_helper_put(struct ip_conntrack_helper *helper);
-
-extern struct ip_conntrack_protocol *
-__ip_conntrack_proto_find(u_int8_t protocol);
-extern struct ip_conntrack_protocol *
-ip_conntrack_proto_find_get(u_int8_t protocol);
-extern void ip_conntrack_proto_put(struct ip_conntrack_protocol *proto);
-
-extern void ip_ct_remove_expectations(struct ip_conntrack *ct);
-
-extern struct ip_conntrack *ip_conntrack_alloc(struct ip_conntrack_tuple *,
- struct ip_conntrack_tuple *);
-
-extern void ip_conntrack_free(struct ip_conntrack *ct);
-
-extern void ip_conntrack_hash_insert(struct ip_conntrack *ct);
-
-extern struct ip_conntrack_expect *
-__ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple);
-
-extern struct ip_conntrack_expect *
-ip_conntrack_expect_find_get(const struct ip_conntrack_tuple *tuple);
-
-extern struct ip_conntrack_tuple_hash *
-__ip_conntrack_find(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack);
-
-extern void ip_conntrack_flush(void);
-
-/* It's confirmed if it is, or has been in the hash table. */
-static inline int is_confirmed(struct ip_conntrack *ct)
-{
- return test_bit(IPS_CONFIRMED_BIT, &ct->status);
-}
-
-static inline int is_dying(struct ip_conntrack *ct)
-{
- return test_bit(IPS_DYING_BIT, &ct->status);
-}
-
-extern unsigned int ip_conntrack_htable_size;
-extern int ip_conntrack_checksum;
-
-#define CONNTRACK_STAT_INC(count) (__get_cpu_var(ip_conntrack_stat).count++)
-#define CONNTRACK_STAT_INC_ATOMIC(count) \
-do { \
- local_bh_disable(); \
- __get_cpu_var(ip_conntrack_stat).count++; \
- local_bh_enable(); \
-} while (0)
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-#include <linux/notifier.h>
-#include <linux/interrupt.h>
-
-struct ip_conntrack_ecache {
- struct ip_conntrack *ct;
- unsigned int events;
-};
-DECLARE_PER_CPU(struct ip_conntrack_ecache, ip_conntrack_ecache);
-
-#define CONNTRACK_ECACHE(x) (__get_cpu_var(ip_conntrack_ecache).x)
-
-extern struct atomic_notifier_head ip_conntrack_chain;
-extern struct atomic_notifier_head ip_conntrack_expect_chain;
-
-static inline int ip_conntrack_register_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_register(&ip_conntrack_chain, nb);
-}
-
-static inline int ip_conntrack_unregister_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&ip_conntrack_chain, nb);
-}
-
-static inline int
-ip_conntrack_expect_register_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_register(&ip_conntrack_expect_chain, nb);
-}
-
-static inline int
-ip_conntrack_expect_unregister_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&ip_conntrack_expect_chain,
- nb);
-}
-
-extern void ip_ct_deliver_cached_events(const struct ip_conntrack *ct);
-extern void __ip_ct_event_cache_init(struct ip_conntrack *ct);
-
-static inline void
-ip_conntrack_event_cache(enum ip_conntrack_events event,
- const struct sk_buff *skb)
-{
- struct ip_conntrack *ct = (struct ip_conntrack *)skb->nfct;
- struct ip_conntrack_ecache *ecache;
-
- local_bh_disable();
- ecache = &__get_cpu_var(ip_conntrack_ecache);
- if (ct != ecache->ct)
- __ip_ct_event_cache_init(ct);
- ecache->events |= event;
- local_bh_enable();
-}
-
-static inline void ip_conntrack_event(enum ip_conntrack_events event,
- struct ip_conntrack *ct)
-{
- if (is_confirmed(ct) && !is_dying(ct))
- atomic_notifier_call_chain(&ip_conntrack_chain, event, ct);
-}
-
-static inline void
-ip_conntrack_expect_event(enum ip_conntrack_expect_events event,
- struct ip_conntrack_expect *exp)
-{
- atomic_notifier_call_chain(&ip_conntrack_expect_chain, event, exp);
-}
-#else /* CONFIG_IP_NF_CONNTRACK_EVENTS */
-static inline void ip_conntrack_event_cache(enum ip_conntrack_events event,
- const struct sk_buff *skb) {}
-static inline void ip_conntrack_event(enum ip_conntrack_events event,
- struct ip_conntrack *ct) {}
-static inline void ip_ct_deliver_cached_events(const struct ip_conntrack *ct) {}
-static inline void
-ip_conntrack_expect_event(enum ip_conntrack_expect_events event,
- struct ip_conntrack_expect *exp) {}
-#endif /* CONFIG_IP_NF_CONNTRACK_EVENTS */
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-static inline int ip_nat_initialized(struct ip_conntrack *conntrack,
- enum ip_nat_manip_type manip)
-{
- if (manip == IP_NAT_MANIP_SRC)
- return test_bit(IPS_SRC_NAT_DONE_BIT, &conntrack->status);
- return test_bit(IPS_DST_NAT_DONE_BIT, &conntrack->status);
-}
-#endif /* CONFIG_IP_NF_NAT_NEEDED */
-
-#endif /* __KERNEL__ */
-#endif /* _IP_CONNTRACK_H */
+++ /dev/null
-#ifndef _IP_CONNTRACK_AMANDA_H
-#define _IP_CONNTRACK_AMANDA_H
-/* AMANDA tracking. */
-
-struct ip_conntrack_expect;
-extern unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp);
-#endif /* _IP_CONNTRACK_AMANDA_H */
+++ /dev/null
-#ifndef _IP_CONNTRACK_CORE_H
-#define _IP_CONNTRACK_CORE_H
-#include <linux/netfilter.h>
-
-#define MAX_IP_CT_PROTO 256
-extern struct ip_conntrack_protocol *ip_ct_protos[MAX_IP_CT_PROTO];
-
-/* This header is used to share core functionality between the
- standalone connection tracking module, and the compatibility layer's use
- of connection tracking. */
-extern unsigned int ip_conntrack_in(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *));
-
-extern int ip_conntrack_init(void);
-extern void ip_conntrack_cleanup(void);
-
-struct ip_conntrack_protocol;
-
-extern int
-ip_ct_get_tuple(const struct iphdr *iph,
- const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_protocol *protocol);
-
-extern int
-ip_ct_invert_tuple(struct ip_conntrack_tuple *inverse,
- const struct ip_conntrack_tuple *orig,
- const struct ip_conntrack_protocol *protocol);
-
-/* Find a connection corresponding to a tuple. */
-struct ip_conntrack_tuple_hash *
-ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack);
-
-extern int __ip_conntrack_confirm(struct sk_buff **pskb);
-
-/* Confirm a connection: returns NF_DROP if packet must be dropped. */
-static inline int ip_conntrack_confirm(struct sk_buff **pskb)
-{
- struct ip_conntrack *ct = (struct ip_conntrack *)(*pskb)->nfct;
- int ret = NF_ACCEPT;
-
- if (ct) {
- if (!is_confirmed(ct) && !is_dying(ct))
- ret = __ip_conntrack_confirm(pskb);
- ip_ct_deliver_cached_events(ct);
- }
- return ret;
-}
-
-extern void ip_ct_unlink_expect(struct ip_conntrack_expect *exp);
-
-extern struct list_head *ip_conntrack_hash;
-extern struct list_head ip_conntrack_expect_list;
-extern rwlock_t ip_conntrack_lock;
-#endif /* _IP_CONNTRACK_CORE_H */
-
+++ /dev/null
-#ifndef _IP_CONNTRACK_FTP_H
-#define _IP_CONNTRACK_FTP_H
-/* FTP tracking. */
-
-/* This enum is exposed to userspace */
-enum ip_ct_ftp_type
-{
- /* PORT command from client */
- IP_CT_FTP_PORT,
- /* PASV response from server */
- IP_CT_FTP_PASV,
- /* EPRT command from client */
- IP_CT_FTP_EPRT,
- /* EPSV response from server */
- IP_CT_FTP_EPSV,
-};
-
-#ifdef __KERNEL__
-
-#define FTP_PORT 21
-
-#define NUM_SEQ_TO_REMEMBER 2
-/* This structure exists only once per master */
-struct ip_ct_ftp_master {
- /* Valid seq positions for cmd matching after newline */
- u_int32_t seq_aft_nl[IP_CT_DIR_MAX][NUM_SEQ_TO_REMEMBER];
- /* 0 means seq_match_aft_nl not set */
- int seq_aft_nl_num[IP_CT_DIR_MAX];
-};
-
-struct ip_conntrack_expect;
-
-/* For NAT to hook in when we find a packet which describes what other
- * connection we should expect. */
-extern unsigned int (*ip_nat_ftp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- enum ip_ct_ftp_type type,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp,
- u32 *seq);
-#endif /* __KERNEL__ */
-
-#endif /* _IP_CONNTRACK_FTP_H */
+++ /dev/null
-#ifndef _IP_CONNTRACK_H323_H
-#define _IP_CONNTRACK_H323_H
-
-#ifdef __KERNEL__
-
-#include <linux/netfilter/nf_conntrack_h323_asn1.h>
-
-#define RAS_PORT 1719
-#define Q931_PORT 1720
-#define H323_RTP_CHANNEL_MAX 4 /* Audio, video, FAX and other */
-
-/* This structure exists only once per master */
-struct ip_ct_h323_master {
-
- /* Original and NATed Q.931 or H.245 signal ports */
- u_int16_t sig_port[IP_CT_DIR_MAX];
-
- /* Original and NATed RTP ports */
- u_int16_t rtp_port[H323_RTP_CHANNEL_MAX][IP_CT_DIR_MAX];
-
- union {
- /* RAS connection timeout */
- u_int32_t timeout;
-
- /* Next TPKT length (for separate TPKT header and data) */
- u_int16_t tpkt_len[IP_CT_DIR_MAX];
- };
-};
-
-struct ip_conntrack_expect;
-
-extern int get_h225_addr(unsigned char *data, TransportAddress * addr,
- __be32 * ip, u_int16_t * port);
-extern void ip_conntrack_h245_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this);
-extern void ip_conntrack_q931_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this);
-extern int (*set_h245_addr_hook) (struct sk_buff ** pskb,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr,
- __be32 ip, u_int16_t port);
-extern int (*set_h225_addr_hook) (struct sk_buff ** pskb,
- unsigned char **data, int dataoff,
- TransportAddress * addr,
- __be32 ip, u_int16_t port);
-extern int (*set_sig_addr_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count);
-extern int (*set_ras_addr_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count);
-extern int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr,
- u_int16_t port, u_int16_t rtp_port,
- struct ip_conntrack_expect * rtp_exp,
- struct ip_conntrack_expect * rtcp_exp);
-extern int (*nat_t120_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect * exp);
-extern int (*nat_h245_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect * exp);
-extern int (*nat_callforwarding_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr,
- u_int16_t port,
- struct ip_conntrack_expect * exp);
-extern int (*nat_q931_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, TransportAddress * addr,
- int idx, u_int16_t port,
- struct ip_conntrack_expect * exp);
-
-#endif
-
-#endif
+++ /dev/null
-/* IP connection tracking helpers. */
-#ifndef _IP_CONNTRACK_HELPER_H
-#define _IP_CONNTRACK_HELPER_H
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-
-struct module;
-
-struct ip_conntrack_helper
-{
- struct list_head list; /* Internal use. */
-
- const char *name; /* name of the module */
- struct module *me; /* pointer to self */
- unsigned int max_expected; /* Maximum number of concurrent
- * expected connections */
- unsigned int timeout; /* timeout for expecteds */
-
- /* Mask of things we will help (compared against server response) */
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack_tuple mask;
-
- /* Function to call when data passes; return verdict, or -1 to
- invalidate. */
- int (*help)(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info conntrackinfo);
-
- void (*destroy)(struct ip_conntrack *ct);
-
- int (*to_nfattr)(struct sk_buff *skb, const struct ip_conntrack *ct);
-};
-
-extern int ip_conntrack_helper_register(struct ip_conntrack_helper *);
-extern void ip_conntrack_helper_unregister(struct ip_conntrack_helper *);
-
-/* Allocate space for an expectation: this is mandatory before calling
- ip_conntrack_expect_related. You will have to call put afterwards. */
-extern struct ip_conntrack_expect *
-ip_conntrack_expect_alloc(struct ip_conntrack *master);
-extern void ip_conntrack_expect_put(struct ip_conntrack_expect *exp);
-
-/* Add an expected connection: can have more than one per connection */
-extern int ip_conntrack_expect_related(struct ip_conntrack_expect *exp);
-extern void ip_conntrack_unexpect_related(struct ip_conntrack_expect *exp);
-
-#endif /*_IP_CONNTRACK_HELPER_H*/
+++ /dev/null
-#ifndef _IP_CONNTRACK_ICMP_H
-#define _IP_CONNTRACK_ICMP_H
-
-#include <net/netfilter/ipv4/nf_conntrack_icmp.h>
-
-#endif /* _IP_CONNTRACK_ICMP_H */
+++ /dev/null
-/* IRC extension for IP connection tracking.
- * (C) 2000 by Harald Welte <laforge@gnumonks.org>
- * based on RR's ip_conntrack_ftp.h
- *
- * ip_conntrack_irc.h,v 1.6 2000/11/07 18:26:42 laforge Exp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- *
- */
-#ifndef _IP_CONNTRACK_IRC_H
-#define _IP_CONNTRACK_IRC_H
-
-/* This structure exists only once per master */
-struct ip_ct_irc_master {
-};
-
-#ifdef __KERNEL__
-extern unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp);
-
-#define IRC_PORT 6667
-
-#endif /* __KERNEL__ */
-
-#endif /* _IP_CONNTRACK_IRC_H */
+++ /dev/null
-/* PPTP constants and structs */
-#ifndef _CONNTRACK_PPTP_H
-#define _CONNTRACK_PPTP_H
-
-/* state of the control session */
-enum pptp_ctrlsess_state {
- PPTP_SESSION_NONE, /* no session present */
- PPTP_SESSION_ERROR, /* some session error */
- PPTP_SESSION_STOPREQ, /* stop_sess request seen */
- PPTP_SESSION_REQUESTED, /* start_sess request seen */
- PPTP_SESSION_CONFIRMED, /* session established */
-};
-
-/* state of the call inside the control session */
-enum pptp_ctrlcall_state {
- PPTP_CALL_NONE,
- PPTP_CALL_ERROR,
- PPTP_CALL_OUT_REQ,
- PPTP_CALL_OUT_CONF,
- PPTP_CALL_IN_REQ,
- PPTP_CALL_IN_REP,
- PPTP_CALL_IN_CONF,
- PPTP_CALL_CLEAR_REQ,
-};
-
-
-/* conntrack private data */
-struct ip_ct_pptp_master {
- enum pptp_ctrlsess_state sstate; /* session state */
-
- /* everything below is going to be per-expectation in newnat,
- * since there could be more than one call within one session */
- enum pptp_ctrlcall_state cstate; /* call state */
- __be16 pac_call_id; /* call id of PAC, host byte order */
- __be16 pns_call_id; /* call id of PNS, host byte order */
-
- /* in pre-2.6.11 this used to be per-expect. Now it is per-conntrack
- * and therefore imposes a fixed limit on the number of maps */
- struct ip_ct_gre_keymap *keymap_orig, *keymap_reply;
-};
-
-/* conntrack_expect private member */
-struct ip_ct_pptp_expect {
- enum pptp_ctrlcall_state cstate; /* call state */
- __be16 pac_call_id; /* call id of PAC */
- __be16 pns_call_id; /* call id of PNS */
-};
-
-
-#ifdef __KERNEL__
-
-#define IP_CONNTR_PPTP PPTP_CONTROL_PORT
-
-#define PPTP_CONTROL_PORT 1723
-
-#define PPTP_PACKET_CONTROL 1
-#define PPTP_PACKET_MGMT 2
-
-#define PPTP_MAGIC_COOKIE 0x1a2b3c4d
-
-struct pptp_pkt_hdr {
- __u16 packetLength;
- __be16 packetType;
- __be32 magicCookie;
-};
-
-/* PptpControlMessageType values */
-#define PPTP_START_SESSION_REQUEST 1
-#define PPTP_START_SESSION_REPLY 2
-#define PPTP_STOP_SESSION_REQUEST 3
-#define PPTP_STOP_SESSION_REPLY 4
-#define PPTP_ECHO_REQUEST 5
-#define PPTP_ECHO_REPLY 6
-#define PPTP_OUT_CALL_REQUEST 7
-#define PPTP_OUT_CALL_REPLY 8
-#define PPTP_IN_CALL_REQUEST 9
-#define PPTP_IN_CALL_REPLY 10
-#define PPTP_IN_CALL_CONNECT 11
-#define PPTP_CALL_CLEAR_REQUEST 12
-#define PPTP_CALL_DISCONNECT_NOTIFY 13
-#define PPTP_WAN_ERROR_NOTIFY 14
-#define PPTP_SET_LINK_INFO 15
-
-#define PPTP_MSG_MAX 15
-
-/* PptpGeneralError values */
-#define PPTP_ERROR_CODE_NONE 0
-#define PPTP_NOT_CONNECTED 1
-#define PPTP_BAD_FORMAT 2
-#define PPTP_BAD_VALUE 3
-#define PPTP_NO_RESOURCE 4
-#define PPTP_BAD_CALLID 5
-#define PPTP_REMOVE_DEVICE_ERROR 6
-
-struct PptpControlHeader {
- __be16 messageType;
- __u16 reserved;
-};
-
-/* FramingCapability Bitmap Values */
-#define PPTP_FRAME_CAP_ASYNC 0x1
-#define PPTP_FRAME_CAP_SYNC 0x2
-
-/* BearerCapability Bitmap Values */
-#define PPTP_BEARER_CAP_ANALOG 0x1
-#define PPTP_BEARER_CAP_DIGITAL 0x2
-
-struct PptpStartSessionRequest {
- __be16 protocolVersion;
- __u16 reserved1;
- __be32 framingCapability;
- __be32 bearerCapability;
- __be16 maxChannels;
- __be16 firmwareRevision;
- __u8 hostName[64];
- __u8 vendorString[64];
-};
-
-/* PptpStartSessionResultCode Values */
-#define PPTP_START_OK 1
-#define PPTP_START_GENERAL_ERROR 2
-#define PPTP_START_ALREADY_CONNECTED 3
-#define PPTP_START_NOT_AUTHORIZED 4
-#define PPTP_START_UNKNOWN_PROTOCOL 5
-
-struct PptpStartSessionReply {
- __be16 protocolVersion;
- __u8 resultCode;
- __u8 generalErrorCode;
- __be32 framingCapability;
- __be32 bearerCapability;
- __be16 maxChannels;
- __be16 firmwareRevision;
- __u8 hostName[64];
- __u8 vendorString[64];
-};
-
-/* PptpStopReasons */
-#define PPTP_STOP_NONE 1
-#define PPTP_STOP_PROTOCOL 2
-#define PPTP_STOP_LOCAL_SHUTDOWN 3
-
-struct PptpStopSessionRequest {
- __u8 reason;
- __u8 reserved1;
- __u16 reserved2;
-};
-
-/* PptpStopSessionResultCode */
-#define PPTP_STOP_OK 1
-#define PPTP_STOP_GENERAL_ERROR 2
-
-struct PptpStopSessionReply {
- __u8 resultCode;
- __u8 generalErrorCode;
- __u16 reserved1;
-};
-
-struct PptpEchoRequest {
- __be32 identNumber;
-};
-
-/* PptpEchoReplyResultCode */
-#define PPTP_ECHO_OK 1
-#define PPTP_ECHO_GENERAL_ERROR 2
-
-struct PptpEchoReply {
- __be32 identNumber;
- __u8 resultCode;
- __u8 generalErrorCode;
- __u16 reserved;
-};
-
-/* PptpFramingType */
-#define PPTP_ASYNC_FRAMING 1
-#define PPTP_SYNC_FRAMING 2
-#define PPTP_DONT_CARE_FRAMING 3
-
-/* PptpCallBearerType */
-#define PPTP_ANALOG_TYPE 1
-#define PPTP_DIGITAL_TYPE 2
-#define PPTP_DONT_CARE_BEARER_TYPE 3
-
-struct PptpOutCallRequest {
- __be16 callID;
- __be16 callSerialNumber;
- __be32 minBPS;
- __be32 maxBPS;
- __be32 bearerType;
- __be32 framingType;
- __be16 packetWindow;
- __be16 packetProcDelay;
- __be16 phoneNumberLength;
- __u16 reserved1;
- __u8 phoneNumber[64];
- __u8 subAddress[64];
-};
-
-/* PptpCallResultCode */
-#define PPTP_OUTCALL_CONNECT 1
-#define PPTP_OUTCALL_GENERAL_ERROR 2
-#define PPTP_OUTCALL_NO_CARRIER 3
-#define PPTP_OUTCALL_BUSY 4
-#define PPTP_OUTCALL_NO_DIAL_TONE 5
-#define PPTP_OUTCALL_TIMEOUT 6
-#define PPTP_OUTCALL_DONT_ACCEPT 7
-
-struct PptpOutCallReply {
- __be16 callID;
- __be16 peersCallID;
- __u8 resultCode;
- __u8 generalErrorCode;
- __be16 causeCode;
- __be32 connectSpeed;
- __be16 packetWindow;
- __be16 packetProcDelay;
- __be32 physChannelID;
-};
-
-struct PptpInCallRequest {
- __be16 callID;
- __be16 callSerialNumber;
- __be32 callBearerType;
- __be32 physChannelID;
- __be16 dialedNumberLength;
- __be16 dialingNumberLength;
- __u8 dialedNumber[64];
- __u8 dialingNumber[64];
- __u8 subAddress[64];
-};
-
-/* PptpInCallResultCode */
-#define PPTP_INCALL_ACCEPT 1
-#define PPTP_INCALL_GENERAL_ERROR 2
-#define PPTP_INCALL_DONT_ACCEPT 3
-
-struct PptpInCallReply {
- __be16 callID;
- __be16 peersCallID;
- __u8 resultCode;
- __u8 generalErrorCode;
- __be16 packetWindow;
- __be16 packetProcDelay;
- __u16 reserved;
-};
-
-struct PptpInCallConnected {
- __be16 peersCallID;
- __u16 reserved;
- __be32 connectSpeed;
- __be16 packetWindow;
- __be16 packetProcDelay;
- __be32 callFramingType;
-};
-
-struct PptpClearCallRequest {
- __be16 callID;
- __u16 reserved;
-};
-
-struct PptpCallDisconnectNotify {
- __be16 callID;
- __u8 resultCode;
- __u8 generalErrorCode;
- __be16 causeCode;
- __u16 reserved;
- __u8 callStatistics[128];
-};
-
-struct PptpWanErrorNotify {
- __be16 peersCallID;
- __u16 reserved;
- __be32 crcErrors;
- __be32 framingErrors;
- __be32 hardwareOverRuns;
- __be32 bufferOverRuns;
- __be32 timeoutErrors;
- __be32 alignmentErrors;
-};
-
-struct PptpSetLinkInfo {
- __be16 peersCallID;
- __u16 reserved;
- __be32 sendAccm;
- __be32 recvAccm;
-};
-
-union pptp_ctrl_union {
- struct PptpStartSessionRequest sreq;
- struct PptpStartSessionReply srep;
- struct PptpStopSessionRequest streq;
- struct PptpStopSessionReply strep;
- struct PptpOutCallRequest ocreq;
- struct PptpOutCallReply ocack;
- struct PptpInCallRequest icreq;
- struct PptpInCallReply icack;
- struct PptpInCallConnected iccon;
- struct PptpClearCallRequest clrreq;
- struct PptpCallDisconnectNotify disc;
- struct PptpWanErrorNotify wanerr;
- struct PptpSetLinkInfo setlink;
-};
-
-extern int
-(*ip_nat_pptp_hook_outbound)(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq);
-
-extern int
-(*ip_nat_pptp_hook_inbound)(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq);
-
-extern void
-(*ip_nat_pptp_hook_exp_gre)(struct ip_conntrack_expect *exp_orig,
- struct ip_conntrack_expect *exp_reply);
-
-extern void
-(*ip_nat_pptp_hook_expectfn)(struct ip_conntrack *ct,
- struct ip_conntrack_expect *exp);
-#endif /* __KERNEL__ */
-#endif /* _CONNTRACK_PPTP_H */
+++ /dev/null
-#ifndef _CONNTRACK_PROTO_GRE_H
-#define _CONNTRACK_PROTO_GRE_H
-#include <asm/byteorder.h>
-
-/* GRE PROTOCOL HEADER */
-
-/* GRE Version field */
-#define GRE_VERSION_1701 0x0
-#define GRE_VERSION_PPTP 0x1
-
-/* GRE Protocol field */
-#define GRE_PROTOCOL_PPTP 0x880B
-
-/* GRE Flags */
-#define GRE_FLAG_C 0x80
-#define GRE_FLAG_R 0x40
-#define GRE_FLAG_K 0x20
-#define GRE_FLAG_S 0x10
-#define GRE_FLAG_A 0x80
-
-#define GRE_IS_C(f) ((f)&GRE_FLAG_C)
-#define GRE_IS_R(f) ((f)&GRE_FLAG_R)
-#define GRE_IS_K(f) ((f)&GRE_FLAG_K)
-#define GRE_IS_S(f) ((f)&GRE_FLAG_S)
-#define GRE_IS_A(f) ((f)&GRE_FLAG_A)
-
-/* GRE is a mess: Four different standards */
-struct gre_hdr {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u16 rec:3,
- srr:1,
- seq:1,
- key:1,
- routing:1,
- csum:1,
- version:3,
- reserved:4,
- ack:1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- __u16 csum:1,
- routing:1,
- key:1,
- seq:1,
- srr:1,
- rec:3,
- ack:1,
- reserved:4,
- version:3;
-#else
-#error "Adjust your <asm/byteorder.h> defines"
-#endif
- __be16 protocol;
-};
-
-/* modified GRE header for PPTP */
-struct gre_hdr_pptp {
- __u8 flags; /* bitfield */
- __u8 version; /* should be GRE_VERSION_PPTP */
- __be16 protocol; /* should be GRE_PROTOCOL_PPTP */
- __be16 payload_len; /* size of ppp payload, not inc. gre header */
- __be16 call_id; /* peer's call_id for this session */
- __be32 seq; /* sequence number. Present if S==1 */
- __be32 ack; /* seq number of highest packet recieved by */
- /* sender in this session */
-};
-
-
-/* this is part of ip_conntrack */
-struct ip_ct_gre {
- unsigned int stream_timeout;
- unsigned int timeout;
-};
-
-#ifdef __KERNEL__
-struct ip_conntrack_expect;
-struct ip_conntrack;
-
-/* structure for original <-> reply keymap */
-struct ip_ct_gre_keymap {
- struct list_head list;
-
- struct ip_conntrack_tuple tuple;
-};
-
-/* add new tuple->key_reply pair to keymap */
-int ip_ct_gre_keymap_add(struct ip_conntrack *ct,
- struct ip_conntrack_tuple *t,
- int reply);
-
-/* delete keymap entries */
-void ip_ct_gre_keymap_destroy(struct ip_conntrack *ct);
-
-
-/* get pointer to gre key, if present */
-static inline __be32 *gre_key(struct gre_hdr *greh)
-{
- if (!greh->key)
- return NULL;
- if (greh->csum || greh->routing)
- return (__be32 *) (greh+sizeof(*greh)+4);
- return (__be32 *) (greh+sizeof(*greh));
-}
-
-/* get pointer ot gre csum, if present */
-static inline __sum16 *gre_csum(struct gre_hdr *greh)
-{
- if (!greh->csum)
- return NULL;
- return (__sum16 *) (greh+sizeof(*greh));
-}
-
-#endif /* __KERNEL__ */
-
-#endif /* _CONNTRACK_PROTO_GRE_H */
+++ /dev/null
-/* Header for use in defining a given protocol for connection tracking. */
-#ifndef _IP_CONNTRACK_PROTOCOL_H
-#define _IP_CONNTRACK_PROTOCOL_H
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-struct seq_file;
-
-struct ip_conntrack_protocol
-{
- /* Protocol number. */
- u_int8_t proto;
-
- /* Protocol name */
- const char *name;
-
- /* Try to fill in the third arg: dataoff is offset past IP
- hdr. Return true if possible. */
- int (*pkt_to_tuple)(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple);
-
- /* Invert the per-proto part of the tuple: ie. turn xmit into reply.
- * Some packets can't be inverted: return 0 in that case.
- */
- int (*invert_tuple)(struct ip_conntrack_tuple *inverse,
- const struct ip_conntrack_tuple *orig);
-
- /* Print out the per-protocol part of the tuple. Return like seq_* */
- int (*print_tuple)(struct seq_file *,
- const struct ip_conntrack_tuple *);
-
- /* Print out the private part of the conntrack. */
- int (*print_conntrack)(struct seq_file *, const struct ip_conntrack *);
-
- /* Returns verdict for packet, or -1 for invalid. */
- int (*packet)(struct ip_conntrack *conntrack,
- const struct sk_buff *skb,
- enum ip_conntrack_info ctinfo);
-
- /* Called when a new connection for this protocol found;
- * returns TRUE if it's OK. If so, packet() called next. */
- int (*new)(struct ip_conntrack *conntrack, const struct sk_buff *skb);
-
- /* Called when a conntrack entry is destroyed */
- void (*destroy)(struct ip_conntrack *conntrack);
-
- int (*error)(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
- unsigned int hooknum);
-
- /* convert protoinfo to nfnetink attributes */
- int (*to_nfattr)(struct sk_buff *skb, struct nfattr *nfa,
- const struct ip_conntrack *ct);
-
- /* convert nfnetlink attributes to protoinfo */
- int (*from_nfattr)(struct nfattr *tb[], struct ip_conntrack *ct);
-
- int (*tuple_to_nfattr)(struct sk_buff *skb,
- const struct ip_conntrack_tuple *t);
- int (*nfattr_to_tuple)(struct nfattr *tb[],
- struct ip_conntrack_tuple *t);
-
- /* Module (if any) which this is connected to. */
- struct module *me;
-};
-
-/* Protocol registration. */
-extern int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto);
-extern void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto);
-/* Existing built-in protocols */
-extern struct ip_conntrack_protocol ip_conntrack_protocol_tcp;
-extern struct ip_conntrack_protocol ip_conntrack_protocol_udp;
-extern struct ip_conntrack_protocol ip_conntrack_protocol_icmp;
-extern struct ip_conntrack_protocol ip_conntrack_generic_protocol;
-extern int ip_conntrack_protocol_tcp_init(void);
-
-/* Log invalid packets */
-extern unsigned int ip_ct_log_invalid;
-
-extern int ip_ct_port_tuple_to_nfattr(struct sk_buff *,
- const struct ip_conntrack_tuple *);
-extern int ip_ct_port_nfattr_to_tuple(struct nfattr *tb[],
- struct ip_conntrack_tuple *);
-
-#ifdef CONFIG_SYSCTL
-#ifdef DEBUG_INVALID_PACKETS
-#define LOG_INVALID(proto) \
- (ip_ct_log_invalid == (proto) || ip_ct_log_invalid == IPPROTO_RAW)
-#else
-#define LOG_INVALID(proto) \
- ((ip_ct_log_invalid == (proto) || ip_ct_log_invalid == IPPROTO_RAW) \
- && net_ratelimit())
-#endif
-#else
-#define LOG_INVALID(proto) 0
-#endif /* CONFIG_SYSCTL */
-
-#endif /*_IP_CONNTRACK_PROTOCOL_H*/
+++ /dev/null
-#ifndef _IP_CONNTRACK_SCTP_H
-#define _IP_CONNTRACK_SCTP_H
-
-#include <linux/netfilter/nf_conntrack_sctp.h>
-
-#endif /* _IP_CONNTRACK_SCTP_H */
+++ /dev/null
-#ifndef __IP_CONNTRACK_SIP_H__
-#define __IP_CONNTRACK_SIP_H__
-#ifdef __KERNEL__
-
-#define SIP_PORT 5060
-#define SIP_TIMEOUT 3600
-
-enum sip_header_pos {
- POS_REG_REQ_URI,
- POS_REQ_URI,
- POS_FROM,
- POS_TO,
- POS_VIA,
- POS_CONTACT,
- POS_CONTENT,
- POS_MEDIA,
- POS_OWNER,
- POS_CONNECTION,
- POS_SDP_HEADER,
-};
-
-extern unsigned int (*ip_nat_sip_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct,
- const char **dptr);
-extern unsigned int (*ip_nat_sdp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp,
- const char *dptr);
-
-extern int ct_sip_get_info(const char *dptr, size_t dlen,
- unsigned int *matchoff,
- unsigned int *matchlen,
- enum sip_header_pos pos);
-extern int ct_sip_lnlen(const char *line, const char *limit);
-extern const char *ct_sip_search(const char *needle, const char *haystack,
- size_t needle_len, size_t haystack_len,
- int case_sensitive);
-#endif /* __KERNEL__ */
-#endif /* __IP_CONNTRACK_SIP_H__ */
+++ /dev/null
-#ifndef _IP_CONNTRACK_TCP_H
-#define _IP_CONNTRACK_TCP_H
-
-#include <linux/netfilter/nf_conntrack_tcp.h>
-
-#endif /* _IP_CONNTRACK_TCP_H */
+++ /dev/null
-#ifndef _IP_CT_TFTP
-#define _IP_CT_TFTP
-
-#define TFTP_PORT 69
-
-struct tftphdr {
- __be16 opcode;
-};
-
-#define TFTP_OPCODE_READ 1
-#define TFTP_OPCODE_WRITE 2
-#define TFTP_OPCODE_DATA 3
-#define TFTP_OPCODE_ACK 4
-#define TFTP_OPCODE_ERROR 5
-
-extern unsigned int (*ip_nat_tftp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp);
-
-#endif /* _IP_CT_TFTP */
+++ /dev/null
-#ifndef _IP_CONNTRACK_TUPLE_H
-#define _IP_CONNTRACK_TUPLE_H
-
-#include <linux/types.h>
-#include <linux/netfilter/nf_conntrack_tuple_common.h>
-
-/* A `tuple' is a structure containing the information to uniquely
- identify a connection. ie. if two packets have the same tuple, they
- are in the same connection; if not, they are not.
-
- We divide the structure along "manipulatable" and
- "non-manipulatable" lines, for the benefit of the NAT code.
-*/
-
-/* The protocol-specific manipulable parts of the tuple: always in
- network order! */
-union ip_conntrack_manip_proto
-{
- /* Add other protocols here. */
- u_int16_t all;
-
- struct {
- __be16 port;
- } tcp;
- struct {
- __be16 port;
- } udp;
- struct {
- __be16 id;
- } icmp;
- struct {
- __be16 port;
- } sctp;
- struct {
- __be16 key; /* key is 32bit, pptp only uses 16 */
- } gre;
-};
-
-/* The manipulable part of the tuple. */
-struct ip_conntrack_manip
-{
- __be32 ip;
- union ip_conntrack_manip_proto u;
-};
-
-/* This contains the information to distinguish a connection. */
-struct ip_conntrack_tuple
-{
- struct ip_conntrack_manip src;
-
- /* These are the parts of the tuple which are fixed. */
- struct {
- __be32 ip;
- union {
- /* Add other protocols here. */
- u_int16_t all;
-
- struct {
- __be16 port;
- } tcp;
- struct {
- __be16 port;
- } udp;
- struct {
- u_int8_t type, code;
- } icmp;
- struct {
- __be16 port;
- } sctp;
- struct {
- __be16 key; /* key is 32bit,
- * pptp only uses 16 */
- } gre;
- } u;
-
- /* The protocol. */
- u_int8_t protonum;
-
- /* The direction (for tuplehash) */
- u_int8_t dir;
- } dst;
-};
-
-/* This is optimized opposed to a memset of the whole structure. Everything we
- * really care about is the source/destination unions */
-#define IP_CT_TUPLE_U_BLANK(tuple) \
- do { \
- (tuple)->src.u.all = 0; \
- (tuple)->dst.u.all = 0; \
- } while (0)
-
-#ifdef __KERNEL__
-
-#define DUMP_TUPLE(tp) \
-DEBUGP("tuple %p: %u %u.%u.%u.%u:%hu -> %u.%u.%u.%u:%hu\n", \
- (tp), (tp)->dst.protonum, \
- NIPQUAD((tp)->src.ip), ntohs((tp)->src.u.all), \
- NIPQUAD((tp)->dst.ip), ntohs((tp)->dst.u.all))
-
-/* If we're the first tuple, it's the original dir. */
-#define DIRECTION(h) ((enum ip_conntrack_dir)(h)->tuple.dst.dir)
-
-/* Connections have two entries in the hash table: one for each way */
-struct ip_conntrack_tuple_hash
-{
- struct list_head list;
-
- struct ip_conntrack_tuple tuple;
-};
-
-#endif /* __KERNEL__ */
-
-static inline int ip_ct_tuple_src_equal(const struct ip_conntrack_tuple *t1,
- const struct ip_conntrack_tuple *t2)
-{
- return t1->src.ip == t2->src.ip
- && t1->src.u.all == t2->src.u.all;
-}
-
-static inline int ip_ct_tuple_dst_equal(const struct ip_conntrack_tuple *t1,
- const struct ip_conntrack_tuple *t2)
-{
- return t1->dst.ip == t2->dst.ip
- && t1->dst.u.all == t2->dst.u.all
- && t1->dst.protonum == t2->dst.protonum;
-}
-
-static inline int ip_ct_tuple_equal(const struct ip_conntrack_tuple *t1,
- const struct ip_conntrack_tuple *t2)
-{
- return ip_ct_tuple_src_equal(t1, t2) && ip_ct_tuple_dst_equal(t1, t2);
-}
-
-static inline int ip_ct_tuple_mask_cmp(const struct ip_conntrack_tuple *t,
- const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *mask)
-{
- return !(((t->src.ip ^ tuple->src.ip) & mask->src.ip)
- || ((t->dst.ip ^ tuple->dst.ip) & mask->dst.ip)
- || ((t->src.u.all ^ tuple->src.u.all) & mask->src.u.all)
- || ((t->dst.u.all ^ tuple->dst.u.all) & mask->dst.u.all)
- || ((t->dst.protonum ^ tuple->dst.protonum)
- & mask->dst.protonum));
-}
-
-#endif /* _IP_CONNTRACK_TUPLE_H */
+++ /dev/null
-#ifndef _IP_NAT_H
-#define _IP_NAT_H
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-
-#define IP_NAT_MAPPING_TYPE_MAX_NAMELEN 16
-
-enum ip_nat_manip_type
-{
- IP_NAT_MANIP_SRC,
- IP_NAT_MANIP_DST
-};
-
-/* SRC manip occurs POST_ROUTING or LOCAL_IN */
-#define HOOK2MANIP(hooknum) ((hooknum) != NF_IP_POST_ROUTING && (hooknum) != NF_IP_LOCAL_IN)
-
-#define IP_NAT_RANGE_MAP_IPS 1
-#define IP_NAT_RANGE_PROTO_SPECIFIED 2
-#define IP_NAT_RANGE_PROTO_RANDOM 4 /* add randomness to "port" selection */
-
-/* NAT sequence number modifications */
-struct ip_nat_seq {
- /* position of the last TCP sequence number
- * modification (if any) */
- u_int32_t correction_pos;
- /* sequence number offset before and after last modification */
- int16_t offset_before, offset_after;
-};
-
-/* Single range specification. */
-struct ip_nat_range
-{
- /* Set to OR of flags above. */
- unsigned int flags;
-
- /* Inclusive: network order. */
- __be32 min_ip, max_ip;
-
- /* Inclusive: network order */
- union ip_conntrack_manip_proto min, max;
-};
-
-/* For backwards compat: don't use in modern code. */
-struct ip_nat_multi_range_compat
-{
- unsigned int rangesize; /* Must be 1. */
-
- /* hangs off end. */
- struct ip_nat_range range[1];
-};
-
-#ifdef __KERNEL__
-#include <linux/list.h>
-
-/* Protects NAT hash tables, and NAT-private part of conntracks. */
-extern rwlock_t ip_nat_lock;
-
-/* The structure embedded in the conntrack structure. */
-struct ip_nat_info
-{
- struct list_head bysource;
- struct ip_nat_seq seq[IP_CT_DIR_MAX];
-};
-
-struct ip_conntrack;
-
-/* Set up the info structure to map into this range. */
-extern unsigned int ip_nat_setup_info(struct ip_conntrack *conntrack,
- const struct ip_nat_range *range,
- unsigned int hooknum);
-
-/* Is this tuple already taken? (not by us)*/
-extern int ip_nat_used_tuple(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack);
-
-#else /* !__KERNEL__: iptables wants this to compile. */
-#define ip_nat_multi_range ip_nat_multi_range_compat
-#endif /*__KERNEL__*/
-#endif
+++ /dev/null
-#ifndef _IP_NAT_CORE_H
-#define _IP_NAT_CORE_H
-#include <linux/list.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-
-/* This header used to share core functionality between the standalone
- NAT module, and the compatibility layer's use of NAT for masquerading. */
-
-extern unsigned int ip_nat_packet(struct ip_conntrack *ct,
- enum ip_conntrack_info conntrackinfo,
- unsigned int hooknum,
- struct sk_buff **pskb);
-
-extern int ip_nat_icmp_reply_translation(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int hooknum,
- struct sk_buff **pskb);
-#endif /* _IP_NAT_CORE_H */
+++ /dev/null
-#ifndef _IP_NAT_HELPER_H
-#define _IP_NAT_HELPER_H
-/* NAT protocol helper routines. */
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/module.h>
-
-struct sk_buff;
-
-/* These return true or false. */
-extern int ip_nat_mangle_tcp_packet(struct sk_buff **skb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int match_offset,
- unsigned int match_len,
- const char *rep_buffer,
- unsigned int rep_len);
-extern int ip_nat_mangle_udp_packet(struct sk_buff **skb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int match_offset,
- unsigned int match_len,
- const char *rep_buffer,
- unsigned int rep_len);
-extern int ip_nat_seq_adjust(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo);
-
-/* Setup NAT on this expected conntrack so it follows master, but goes
- * to port ct->master->saved_proto. */
-extern void ip_nat_follow_master(struct ip_conntrack *ct,
- struct ip_conntrack_expect *this);
-#endif
+++ /dev/null
-/* PPTP constants and structs */
-#ifndef _NAT_PPTP_H
-#define _NAT_PPTP_H
-
-/* conntrack private data */
-struct ip_nat_pptp {
- __be16 pns_call_id; /* NAT'ed PNS call id */
- __be16 pac_call_id; /* NAT'ed PAC call id */
-};
-
-#endif /* _NAT_PPTP_H */
+++ /dev/null
-/* Header for use in defining a given protocol. */
-#ifndef _IP_NAT_PROTOCOL_H
-#define _IP_NAT_PROTOCOL_H
-#include <linux/init.h>
-#include <linux/list.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-struct iphdr;
-struct ip_nat_range;
-
-struct ip_nat_protocol
-{
- /* Protocol name */
- const char *name;
-
- /* Protocol number. */
- unsigned int protonum;
-
- struct module *me;
-
- /* Translate a packet to the target according to manip type.
- Return true if succeeded. */
- int (*manip_pkt)(struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype);
-
- /* Is the manipable part of the tuple between min and max incl? */
- int (*in_range)(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max);
-
- /* Alter the per-proto part of the tuple (depending on
- maniptype), to give a unique tuple in the given range if
- possible; return false if not. Per-protocol part of tuple
- is initialized to the incoming packet. */
- int (*unique_tuple)(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack);
-
- int (*range_to_nfattr)(struct sk_buff *skb,
- const struct ip_nat_range *range);
-
- int (*nfattr_to_range)(struct nfattr *tb[],
- struct ip_nat_range *range);
-};
-
-/* Protocol registration. */
-extern int ip_nat_protocol_register(struct ip_nat_protocol *proto);
-extern void ip_nat_protocol_unregister(struct ip_nat_protocol *proto);
-
-extern struct ip_nat_protocol *ip_nat_proto_find_get(u_int8_t protocol);
-extern void ip_nat_proto_put(struct ip_nat_protocol *proto);
-
-/* Built-in protocols. */
-extern struct ip_nat_protocol ip_nat_protocol_tcp;
-extern struct ip_nat_protocol ip_nat_protocol_udp;
-extern struct ip_nat_protocol ip_nat_protocol_icmp;
-extern struct ip_nat_protocol ip_nat_unknown_protocol;
-
-extern int init_protocols(void) __init;
-extern void cleanup_protocols(void);
-extern struct ip_nat_protocol *find_nat_proto(u_int16_t protonum);
-
-extern int ip_nat_port_range_to_nfattr(struct sk_buff *skb,
- const struct ip_nat_range *range);
-extern int ip_nat_port_nfattr_to_range(struct nfattr *tb[],
- struct ip_nat_range *range);
-
-#endif /*_IP_NAT_PROTO_H*/
+++ /dev/null
-#ifndef _IP_NAT_RULE_H
-#define _IP_NAT_RULE_H
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-
-#ifdef __KERNEL__
-
-extern int ip_nat_rule_init(void) __init;
-extern void ip_nat_rule_cleanup(void);
-extern int ip_nat_rule_find(struct sk_buff **pskb,
- unsigned int hooknum,
- const struct net_device *in,
- const struct net_device *out,
- struct ip_conntrack *ct,
- struct ip_nat_info *info);
-
-extern unsigned int
-alloc_null_binding(struct ip_conntrack *conntrack,
- struct ip_nat_info *info,
- unsigned int hooknum);
-
-extern unsigned int
-alloc_null_binding_confirmed(struct ip_conntrack *conntrack,
- struct ip_nat_info *info,
- unsigned int hooknum);
-#endif
-#endif /* _IP_NAT_RULE_H */
u_int32_t *iparray;
/* hangs off end. */
- struct ip_nat_range range[IPT_SAME_MAX_RANGE];
+ struct nf_nat_range range[IPT_SAME_MAX_RANGE];
};
#endif /*_IPT_SAME_H*/
#include <linux/capability.h>
#include <linux/skbuff.h>
+static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb)
+{
+ return (struct nlmsghdr *)skb->data;
+}
+
struct netlink_skb_parms
{
struct ucred creds; /* Skb credentials */
#define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds)
-extern struct sock *netlink_kernel_create(int unit, unsigned int groups, void (*input)(struct sock *sk, int len), struct module *module);
+extern struct sock *netlink_kernel_create(int unit, unsigned int groups,
+ void (*input)(struct sock *sk, int len),
+ struct mutex *cb_mutex,
+ struct module *module);
extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
extern int netlink_has_listeners(struct sock *sk, unsigned int group);
extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);
/*
* skb should fit one page. This choice is good for headerless malloc.
+ * But we should limit to 8K so that userspace does not have to
+ * use enormous buffer sizes on recvmsg() calls just to avoid
+ * MSG_TRUNC when PAGE_SIZE is very large.
*/
-#define NLMSG_GOODORDER 0
-#define NLMSG_GOODSIZE (SKB_MAX_ORDER(0, NLMSG_GOODORDER))
+#if PAGE_SIZE < 8192UL
+#define NLMSG_GOODSIZE SKB_WITH_OVERHEAD(PAGE_SIZE)
+#else
+#define NLMSG_GOODSIZE SKB_WITH_OVERHEAD(8192UL)
+#endif
+
#define NLMSG_DEFAULT_SIZE (NLMSG_GOODSIZE - NLMSG_HDRLEN)
#define NLMSG_PUT(skb, pid, seq, type, len) \
NLMSG_NEW(skb, pid, seq, type, len, 0)
-#define NLMSG_NEW_ANSWER(skb, cb, type, len, flags) \
- NLMSG_NEW(skb, NETLINK_CB((cb)->skb).pid, \
- (cb)->nlh->nlmsg_seq, type, len, flags)
-
-#define NLMSG_END(skb, nlh) \
-({ (nlh)->nlmsg_len = (skb)->tail - (unsigned char *) (nlh); \
- (skb)->len; })
-
-#define NLMSG_CANCEL(skb, nlh) \
-({ skb_trim(skb, (unsigned char *) (nlh) - (skb)->data); \
- -1; })
-
extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
struct nlmsghdr *nlh,
int (*dump)(struct sk_buff *skb, struct netlink_callback*),
};
#define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags))
-#define NFS_NEED_COMMIT(req) (test_bit(PG_NEED_COMMIT,&(req)->wb_flags))
-#define NFS_NEED_RESCHED(req) (test_bit(PG_NEED_RESCHED,&(req)->wb_flags))
extern struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
struct inode *inode,
req->wb_list_head = NULL;
}
-static inline int
-nfs_defer_commit(struct nfs_page *req)
-{
- return !test_and_set_bit(PG_NEED_COMMIT, &req->wb_flags);
-}
-
-static inline void
-nfs_clear_commit(struct nfs_page *req)
-{
- smp_mb__before_clear_bit();
- clear_bit(PG_NEED_COMMIT, &req->wb_flags);
- smp_mb__after_clear_bit();
-}
-
-static inline int
-nfs_defer_reschedule(struct nfs_page *req)
-{
- return !test_and_set_bit(PG_NEED_RESCHED, &req->wb_flags);
-}
-
-static inline void
-nfs_clear_reschedule(struct nfs_page *req)
-{
- smp_mb__before_clear_bit();
- clear_bit(PG_NEED_RESCHED, &req->wb_flags);
- smp_mb__after_clear_bit();
-}
-
static inline struct nfs_page *
nfs_list_entry(struct list_head *head)
{
--- /dev/null
+#ifndef __LINUX_NL80211_H
+#define __LINUX_NL80211_H
+/*
+ * 802.11 netlink interface public header
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+/**
+ * enum nl80211_iftype - (virtual) interface types
+ * @NL80211_IFTYPE_UNSPECIFIED: unspecified type, driver decides
+ * @NL80211_IFTYPE_ADHOC: independent BSS member
+ * @NL80211_IFTYPE_STATION: managed BSS member
+ * @NL80211_IFTYPE_AP: access point
+ * @NL80211_IFTYPE_AP_VLAN: VLAN interface for access points
+ * @NL80211_IFTYPE_WDS: wireless distribution interface
+ * @NL80211_IFTYPE_MONITOR: monitor interface receiving all frames
+ * @__NL80211_IFTYPE_AFTER_LAST: internal use
+ *
+ * These values are used with the NL80211_ATTR_IFTYPE
+ * to set the type of an interface.
+ *
+ */
+enum nl80211_iftype {
+ NL80211_IFTYPE_UNSPECIFIED,
+ NL80211_IFTYPE_ADHOC,
+ NL80211_IFTYPE_STATION,
+ NL80211_IFTYPE_AP,
+ NL80211_IFTYPE_AP_VLAN,
+ NL80211_IFTYPE_WDS,
+ NL80211_IFTYPE_MONITOR,
+
+ /* keep last */
+ __NL80211_IFTYPE_AFTER_LAST
+};
+#define NL80211_IFTYPE_MAX (__NL80211_IFTYPE_AFTER_LAST - 1)
+
+#endif /* __LINUX_NL80211_H */
static inline void SetPageUptodate(struct page *page)
{
if (!test_and_set_bit(PG_uptodate, &page->flags))
- page_test_and_clear_dirty(page);
+ page_clear_dirty(page);
}
#else
#define SetPageUptodate(page) set_bit(PG_uptodate, &(page)->flags)
#define rtattr_parse_nested(tb, max, rta) \
rtattr_parse((tb), (max), RTA_DATA((rta)), RTA_PAYLOAD((rta)))
-struct rtnetlink_link
-{
- int (*doit)(struct sk_buff *, struct nlmsghdr*, void *attr);
- int (*dumpit)(struct sk_buff *, struct netlink_callback *cb);
-};
-
-extern struct rtnetlink_link * rtnetlink_links[NPROTO];
extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo);
extern int rtnl_unicast(struct sk_buff *skb, u32 pid);
extern int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
#define RTA_PUT_NOHDR(skb, attrlen, data) \
({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \
- memset(skb->tail - (RTA_ALIGN(attrlen) - attrlen), 0, \
+ memset(skb_tail_pointer(skb) - (RTA_ALIGN(attrlen) - attrlen), 0, \
RTA_ALIGN(attrlen) - attrlen); })
#define RTA_PUT_U8(skb, attrtype, value) \
RTA_PUT(skb, attrtype, 0, NULL);
#define RTA_NEST(skb, type) \
-({ struct rtattr *__start = (struct rtattr *) (skb)->tail; \
+({ struct rtattr *__start = (struct rtattr *)skb_tail_pointer(skb); \
RTA_PUT(skb, type, 0, NULL); \
__start; })
#define RTA_NEST_END(skb, start) \
-({ (start)->rta_len = ((skb)->tail - (unsigned char *) (start)); \
+({ (start)->rta_len = skb_tail_pointer(skb) - (unsigned char *)(start); \
(skb)->len; })
#define RTA_NEST_CANCEL(skb, start) \
--- /dev/null
+/* AF_RXRPC parameters
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_RXRPC_H
+#define _LINUX_RXRPC_H
+
+#include <linux/in.h>
+#include <linux/in6.h>
+
+/*
+ * RxRPC socket address
+ */
+struct sockaddr_rxrpc {
+ sa_family_t srx_family; /* address family */
+ u16 srx_service; /* service desired */
+ u16 transport_type; /* type of transport socket (SOCK_DGRAM) */
+ u16 transport_len; /* length of transport address */
+ union {
+ sa_family_t family; /* transport address family */
+ struct sockaddr_in sin; /* IPv4 transport address */
+ struct sockaddr_in6 sin6; /* IPv6 transport address */
+ } transport;
+};
+
+/*
+ * RxRPC socket options
+ */
+#define RXRPC_SECURITY_KEY 1 /* [clnt] set client security key */
+#define RXRPC_SECURITY_KEYRING 2 /* [srvr] set ring of server security keys */
+#define RXRPC_EXCLUSIVE_CONNECTION 3 /* [clnt] use exclusive RxRPC connection */
+#define RXRPC_MIN_SECURITY_LEVEL 4 /* minimum security level */
+
+/*
+ * RxRPC control messages
+ * - terminal messages mean that a user call ID tag can be recycled
+ */
+#define RXRPC_USER_CALL_ID 1 /* user call ID specifier */
+#define RXRPC_ABORT 2 /* abort request / notification [terminal] */
+#define RXRPC_ACK 3 /* [Server] RPC op final ACK received [terminal] */
+#define RXRPC_NET_ERROR 5 /* network error received [terminal] */
+#define RXRPC_BUSY 6 /* server busy received [terminal] */
+#define RXRPC_LOCAL_ERROR 7 /* local error generated [terminal] */
+#define RXRPC_NEW_CALL 8 /* [Server] new incoming call notification */
+#define RXRPC_ACCEPT 9 /* [Server] accept request */
+
+/*
+ * RxRPC security levels
+ */
+#define RXRPC_SECURITY_PLAIN 0 /* plain secure-checksummed packets only */
+#define RXRPC_SECURITY_AUTH 1 /* authenticated packets */
+#define RXRPC_SECURITY_ENCRYPT 2 /* encrypted packets */
+
+
+#endif /* _LINUX_RXRPC_H */
__be32 checksum;
} __attribute__((packed)) sctp_sctphdr_t;
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct sctphdr *sctp_hdr(const struct sk_buff *skb)
+{
+ return (struct sctphdr *)skb_transport_header(skb);
+}
+#endif
+
/* Section 3.2. Chunk Field Descriptions. */
typedef struct sctp_chunkhdr {
__u8 type;
+++ /dev/null
-/*****************************************************************************
-* sdla_fr.h Sangoma frame relay firmware API definitions.
-*
-* Author: Gideon Hack
-* Nenad Corbic <ncorbic@sangoma.com>
-*
-* Copyright: (c) 1995-2000 Sangoma Technologies Inc.
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* as published by the Free Software Foundation; either version
-* 2 of the License, or (at your option) any later version.
-* ============================================================================
-* Oct 04, 1999 Gideon Hack Updated API structures
-* Jun 02, 1999 Gideon Hack Modifications for S514 support
-* Oct 12, 1997 Jaspreet Singh Added FR_READ_DLCI_IB_MAPPING
-* Jul 21, 1997 Jaspreet Singh Changed FRRES_TOO_LONG and FRRES_TOO_MANY to
-* 0x05 and 0x06 respectively.
-* Dec 23, 1996 Gene Kozin v2.0
-* Apr 29, 1996 Gene Kozin v1.0 (merged version S502 & S508 definitions).
-* Sep 26, 1995 Gene Kozin Initial version.
-*****************************************************************************/
-#ifndef _SDLA_FR_H
-#define _SDLA_FR_H
-
-/*----------------------------------------------------------------------------
- * Notes:
- * ------
- * 1. All structures defined in this file are byte-alined.
- *
- * Compiler Platform
- * -------- --------
- * GNU C Linux
- */
-
-#ifndef PACKED
-# define PACKED __attribute__((packed))
-#endif /* PACKED */
-
-/* Adapter memory layout */
-#define FR_MB_VECTOR 0xE000 /* mailbox window vector */
-#define FR502_RX_VECTOR 0xA000 /* S502 direct receive window vector */
-#define FR502_MBOX_OFFS 0xF60 /* S502 mailbox offset */
-#define FR508_MBOX_OFFS 0 /* S508 mailbox offset */
-#define FR502_FLAG_OFFS 0x1FF0 /* S502 status flags offset */
-#define FR508_FLAG_OFFS 0x1000 /* S508 status flags offset */
-#define FR502_RXMB_OFFS 0x900 /* S502 direct receive mailbox offset */
-#define FR508_TXBC_OFFS 0x1100 /* S508 Tx buffer info offset */
-#define FR508_RXBC_OFFS 0x1120 /* S508 Rx buffer info offset */
-
-/* Important constants */
-#define FR502_MAX_DATA 4096 /* maximum data buffer length */
-#define FR508_MAX_DATA 4080 /* maximum data buffer length */
-#define MIN_LGTH_FR_DATA_CFG 300 /* min Information frame length
-(for configuration purposes) */
-#define FR_MAX_NO_DATA_BYTES_IN_FRAME 15354 /* max Information frame length */
-
-#define HIGHEST_VALID_DLCI 991
-
-/****** Data Structures *****************************************************/
-
-/*----------------------------------------------------------------------------
- * Frame relay command block.
- */
-typedef struct fr_cmd
-{
- unsigned char command PACKED; /* command code */
- unsigned short length PACKED; /* length of data buffer */
- unsigned char result PACKED; /* return code */
- unsigned short dlci PACKED; /* DLCI number */
- unsigned char attr PACKED; /* FECN, BECN, DE and C/R bits */
- unsigned short rxlost1 PACKED; /* frames discarded at int. level */
- unsigned long rxlost2 PACKED; /* frames discarded at app. level */
- unsigned char rsrv[2] PACKED; /* reserved for future use */
-} fr_cmd_t;
-
-/* 'command' field defines */
-#define FR_WRITE 0x01
-#define FR_READ 0x02
-#define FR_ISSUE_IS_FRAME 0x03
-#define FR_SET_CONFIG 0x10
-#define FR_READ_CONFIG 0x11
-#define FR_COMM_DISABLE 0x12
-#define FR_COMM_ENABLE 0x13
-#define FR_READ_STATUS 0x14
-#define FR_READ_STATISTICS 0x15
-#define FR_FLUSH_STATISTICS 0x16
-#define FR_LIST_ACTIVE_DLCI 0x17
-#define FR_FLUSH_DATA_BUFFERS 0x18
-#define FR_READ_ADD_DLC_STATS 0x19
-#define FR_ADD_DLCI 0x20
-#define FR_DELETE_DLCI 0x21
-#define FR_ACTIVATE_DLCI 0x22
-#define FR_DEACTIVATE_DLCI 0x22
-#define FR_READ_MODEM_STATUS 0x30
-#define FR_SET_MODEM_STATUS 0x31
-#define FR_READ_ERROR_STATS 0x32
-#define FR_FLUSH_ERROR_STATS 0x33
-#define FR_READ_DLCI_IB_MAPPING 0x34
-#define FR_READ_CODE_VERSION 0x40
-#define FR_SET_INTR_MODE 0x50
-#define FR_READ_INTR_MODE 0x51
-#define FR_SET_TRACE_CONFIG 0x60
-#define FR_FT1_STATUS_CTRL 0x80
-#define FR_SET_FT1_MODE 0x81
-
-/* Special UDP drivers management commands */
-#define FPIPE_ENABLE_TRACING 0x41
-#define FPIPE_DISABLE_TRACING 0x42
-#define FPIPE_GET_TRACE_INFO 0x43
-#define FPIPE_FT1_READ_STATUS 0x44
-#define FPIPE_DRIVER_STAT_IFSEND 0x45
-#define FPIPE_DRIVER_STAT_INTR 0x46
-#define FPIPE_DRIVER_STAT_GEN 0x47
-#define FPIPE_FLUSH_DRIVER_STATS 0x48
-#define FPIPE_ROUTER_UP_TIME 0x49
-
-/* 'result' field defines */
-#define FRRES_OK 0x00 /* command executed successfully */
-#define FRRES_DISABLED 0x01 /* communications not enabled */
-#define FRRES_INOPERATIVE 0x02 /* channel inoperative */
-#define FRRES_DLCI_INACTIVE 0x03 /* DLCI is inactive */
-#define FRRES_DLCI_INVALID 0x04 /* DLCI is not configured */
-#define FRRES_TOO_LONG 0x05
-#define FRRES_TOO_MANY 0x06
-#define FRRES_CIR_OVERFLOW 0x07 /* Tx throughput has exceeded CIR */
-#define FRRES_BUFFER_OVERFLOW 0x08
-#define FRRES_MODEM_FAILURE 0x10 /* DCD and/or CTS dropped */
-#define FRRES_CHANNEL_DOWN 0x11 /* channel became inoperative */
-#define FRRES_CHANNEL_UP 0x12 /* channel became operative */
-#define FRRES_DLCI_CHANGE 0x13 /* DLCI status (or number) changed */
-#define FRRES_DLCI_MISMATCH 0x14
-#define FRRES_INVALID_CMD 0x1F /* invalid command */
-
-/* 'attr' field defines */
-#define FRATTR_
-
-/*----------------------------------------------------------------------------
- * Frame relay mailbox.
- * This structure is located at offset FR50?_MBOX_OFFS into FR_MB_VECTOR.
- * For S502 it is also located at offset FR502_RXMB_OFFS into
- * FR502_RX_VECTOR.
- */
-typedef struct fr_mbox
-{
- unsigned char opflag PACKED; /* 00h: execution flag */
- fr_cmd_t cmd PACKED; /* 01h: command block */
- unsigned char data[1] PACKED; /* 10h: variable length data buffer */
-} fr_mbox_t;
-
-/*----------------------------------------------------------------------------
- * S502 frame relay status flags.
- * This structure is located at offset FR502_FLAG_OFFS into FR_MB_VECTOR.
- */
-typedef struct fr502_flags
-{
- unsigned char rsrv1[1] PACKED; /* 00h: */
- unsigned char tx_ready PACKED; /* 01h: Tx buffer available */
- unsigned char rx_ready PACKED; /* 02h: Rx frame available */
- unsigned char event PACKED; /* 03h: asynchronous event */
- unsigned char mstatus PACKED; /* 04h: modem status */
- unsigned char rsrv2[8] PACKED; /* 05h: */
- unsigned char iflag PACKED; /* 0Dh: interrupt flag */
- unsigned char imask PACKED; /* 0Eh: interrupt mask */
-} fr502_flags_t;
-
-/*----------------------------------------------------------------------------
- * S508 frame relay status flags.
- * This structure is located at offset FR508_FLAG_OFFS into FR_MB_VECTOR.
- */
-typedef struct fr508_flags
-{
- unsigned char rsrv1[3] PACKED; /* 00h: reserved */
- unsigned char event PACKED; /* 03h: asynchronous event */
- unsigned char mstatus PACKED; /* 04h: modem status */
- unsigned char rsrv2[11] PACKED; /* 05h: reserved */
- unsigned char iflag PACKED; /* 10h: interrupt flag */
- unsigned char imask PACKED; /* 11h: interrupt mask */
- unsigned long tse_offs PACKED; /* 12h: Tx status element */
- unsigned short dlci PACKED; /* 16h: DLCI NUMBER */
-} fr508_flags_t;
-
-/* 'event' field defines */
-#define FR_EVENT_STATUS 0x01 /* channel status change */
-#define FR_EVENT_DLC_STATUS 0x02 /* DLC status change */
-#define FR_EVENT_BAD_DLCI 0x04 /* FSR included wrong DLCI */
-#define FR_EVENT_LINK_DOWN 0x40 /* DCD or CTS low */
-
-/* 'mstatus' field defines */
-#define FR_MDM_DCD 0x08 /* mdm_status: DCD */
-#define FR_MDM_CTS 0x20 /* mdm_status: CTS */
-
-/* 'iflag' & 'imask' fields defines */
-#define FR_INTR_RXRDY 0x01 /* Rx ready */
-#define FR_INTR_TXRDY 0x02 /* Tx ready */
-#define FR_INTR_MODEM 0x04 /* modem status change (DCD, CTS) */
-#define FR_INTR_READY 0x08 /* interface command completed */
-#define FR_INTR_DLC 0x10 /* DLC status change */
-#define FR_INTR_TIMER 0x20 /* millisecond timer */
-#define FR_INTR_TX_MULT_DLCIs 0x80 /* Tx interrupt on multiple DLCIs */
-
-
-/*----------------------------------------------------------------------------
- * Receive Buffer Configuration Info. S508 only!
- * This structure is located at offset FR508_RXBC_OFFS into FR_MB_VECTOR.
- */
-typedef struct fr_buf_info
-{
- unsigned short rse_num PACKED; /* 00h: number of status elements */
- unsigned long rse_base PACKED; /* 02h: receive status array base */
- unsigned long rse_next PACKED; /* 06h: next status element */
- unsigned long buf_base PACKED; /* 0Ah: rotational buffer base */
- unsigned short reserved PACKED; /* 0Eh: */
- unsigned long buf_top PACKED; /* 10h: rotational buffer top */
-} fr_buf_info_t;
-
-/*----------------------------------------------------------------------------
- * Buffer Status Element. S508 only!
- * Array of structures of this type is located at offset defined by the
- * 'rse_base' field of the frBufInfo_t structure into absolute adapter
- * memory address space.
- */
-typedef struct fr_rx_buf_ctl
-{
- unsigned char flag PACKED; /* 00h: ready flag */
- unsigned short length PACKED; /* 01h: frame length */
- unsigned short dlci PACKED; /* 03h: DLCI */
- unsigned char attr PACKED; /* 05h: FECN/BECN/DE/CR */
- unsigned short tmstamp PACKED; /* 06h: time stamp */
- unsigned short rsrv[2] PACKED; /* 08h: */
- unsigned long offset PACKED; /* 0Ch: buffer absolute address */
-} fr_rx_buf_ctl_t;
-
-typedef struct fr_tx_buf_ctl
-{
- unsigned char flag PACKED; /* 00h: ready flag */
- unsigned short rsrv0[2] PACKED; /* 01h: */
- unsigned short length PACKED; /* 05h: frame length */
- unsigned short dlci PACKED; /* 07h: DLCI */
- unsigned char attr PACKED; /* 09h: FECN/BECN/DE/CR */
- unsigned short rsrv1 PACKED; /* 0Ah: */
- unsigned long offset PACKED; /* 0Ch: buffer absolute address */
-} fr_tx_buf_ctl_t;
-
-/*----------------------------------------------------------------------------
- * Global Configuration Block. Passed to FR_SET_CONFIG command when dlci == 0.
- */
-typedef struct fr_conf
-{
- unsigned short station PACKED; /* 00h: CPE/Node */
- unsigned short options PACKED; /* 02h: configuration options */
- unsigned short kbps PACKED; /* 04h: baud rate in kbps */
- unsigned short port PACKED; /* 06h: RS-232/V.35 */
- unsigned short mtu PACKED; /* 08h: max. transmit length */
- unsigned short t391 PACKED; /* 0Ah: */
- unsigned short t392 PACKED; /* 0Ch: */
- unsigned short n391 PACKED; /* 0Eh: */
- unsigned short n392 PACKED; /* 10h: */
- unsigned short n393 PACKED; /* 12h: */
- unsigned short cir_fwd PACKED; /* 14h: */
- unsigned short bc_fwd PACKED; /* 16h: */
- unsigned short be_fwd PACKED; /* 18h: */
- unsigned short cir_bwd PACKED; /* 1Ah: */
- unsigned short bc_bwd PACKED; /* 1Ch: */
- unsigned short be_bwd PACKED; /* 1Eh: */
- unsigned short dlci[0] PACKED; /* 20h: */
-} fr_conf_t;
-
-/* 'station_type' defines */
-#define FRCFG_STATION_CPE 0
-#define FRCFG_STATION_NODE 1
-
-/* 'conf_flags' defines */
-#define FRCFG_IGNORE_TX_CIR 0x0001
-#define FRCFG_IGNORE_RX_CIR 0x0002
-#define FRCFG_DONT_RETRANSMIT 0x0004
-#define FRCFG_IGNORE_CBS 0x0008
-#define FRCFG_THROUGHPUT 0x0010 /* enable throughput calculation */
-#define FRCFG_DIRECT_RX 0x0080 /* enable direct receive buffer */
-#define FRCFG_AUTO_CONFIG 0x8000 /* enable auto DLCI configuration */
-
-/* 'baud_rate' defines */
-#define FRCFG_BAUD_1200 12
-#define FRCFG_BAUD_2400 24
-#define FRCFG_BAUD_4800 48
-#define FRCFG_BAUD_9600 96
-#define FRCFG_BAUD_19200 19
-#define FRCFG_BAUD_38400 38
-#define FRCFG_BAUD_56000 56
-#define FRCFG_BAUD_64000 64
-#define FRCFG_BAUD_128000 128
-
-/* 'port_mode' defines */
-#define FRCFG_MODE_EXT_CLK 0x0000
-#define FRCFG_MODE_INT_CLK 0x0001
-#define FRCFG_MODE_V35 0x0000 /* S508 only */
-#define FRCFG_MODE_RS232 0x0002 /* S508 only */
-
-/* defines for line tracing */
-
-/* the line trace status element presented by the frame relay code */
-typedef struct {
- unsigned char flag PACKED; /* ready flag */
- unsigned short length PACKED; /* trace length */
- unsigned char rsrv0[2] PACKED; /* reserved */
- unsigned char attr PACKED; /* trace attributes */
- unsigned short tmstamp PACKED; /* time stamp */
- unsigned char rsrv1[4] PACKED; /* reserved */
- unsigned long offset PACKED; /* buffer absolute address */
-} fr_trc_el_t;
-
-typedef struct {
- unsigned char status PACKED; /* status flag */
- unsigned char data_passed PACKED; /* 0 if no data passed, 1 if */
- /* data passed */
- unsigned short length PACKED; /* frame length */
- unsigned short tmstamp PACKED; /* time stamp */
-} fpipemon_trc_hdr_t;
-
-typedef struct {
- fpipemon_trc_hdr_t fpipemon_trc_hdr PACKED;
- unsigned char data[FR_MAX_NO_DATA_BYTES_IN_FRAME] PACKED;
-} fpipemon_trc_t;
-
-/* bit settings for the 'status' byte - note that bits 1, 2 and 3 are used */
-/* for returning the number of frames being passed to fpipemon */
-#define TRC_OUTGOING_FRM 0x01
-#define TRC_ABORT_ERROR 0x10
-#define TRC_CRC_ERROR 0x20
-#define TRC_OVERRUN_ERROR 0x40
-#define MORE_TRC_DATA 0x80
-
-#define MAX_FRMS_TRACED 0x07
-
-#define NO_TRC_ELEMENTS_OFF 0x9000
-#define BASE_TRC_ELEMENTS_OFF 0x9002
-#define TRC_ACTIVE 0x01
-#define FLUSH_TRC_BUFFERS 0x02
-#define FLUSH_TRC_STATISTICS 0x04
-#define TRC_SIGNALLING_FRMS 0x10
-#define TRC_INFO_FRMS 0x20
-#define ACTIVATE_TRC (TRC_ACTIVE | TRC_SIGNALLING_FRMS | TRC_INFO_FRMS)
-#define RESET_TRC (FLUSH_TRC_BUFFERS | FLUSH_TRC_STATISTICS)
-
-/*----------------------------------------------------------------------------
- * Channel configuration.
- * This structure is passed to the FR_SET_CONFIG command when dlci != 0.
- */
-typedef struct fr_dlc_conf
-{
- unsigned short conf_flags PACKED; /* 00h: configuration bits */
- unsigned short cir_fwd PACKED; /* 02h: */
- unsigned short bc_fwd PACKED; /* 04h: */
- unsigned short be_fwd PACKED; /* 06h: */
- unsigned short cir_bwd PACKED; /* 08h: */
- unsigned short bc_bwd PACKED; /* 0Ah: */
- unsigned short be_bwd PACKED; /* 0Ch: */
-} fr_dlc_conf_t;
-
-/*----------------------------------------------------------------------------
- * S502 interrupt mode control block.
- * This structure is passed to the FR_SET_INTR_FLAGS and returned by the
- * FR_READ_INTR_FLAGS commands.
- */
-typedef struct fr502_intr_ctl
-{
- unsigned char mode PACKED; /* 00h: interrupt enable flags */
- unsigned short tx_len PACKED; /* 01h: required Tx buffer size */
-} fr502_intr_ctl_t;
-
-/*----------------------------------------------------------------------------
- * S508 interrupt mode control block.
- * This structure is passed to the FR_SET_INTR_FLAGS and returned by the
- * FR_READ_INTR_FLAGS commands.
- */
-typedef struct fr508_intr_ctl
-{
- unsigned char mode PACKED; /* 00h: interrupt enable flags */
- unsigned short tx_len PACKED; /* 01h: required Tx buffer size */
- unsigned char irq PACKED; /* 03h: IRQ level to activate */
- unsigned char flags PACKED; /* 04h: ?? */
- unsigned short timeout PACKED; /* 05h: ms, for timer interrupt */
-} fr508_intr_ctl_t;
-
-/*----------------------------------------------------------------------------
- * Channel status.
- * This structure is returned by the FR_READ_STATUS command.
- */
-typedef struct fr_dlc_Status
-{
- unsigned char status PACKED; /* 00h: link/DLCI status */
- struct
- {
- unsigned short dlci PACKED; /* 01h: DLCI number */
- unsigned char status PACKED; /* 03h: DLCI status */
- } circuit[1] PACKED;
-} fr_dlc_status_t;
-
-/* 'status' defines */
-#define FR_LINK_INOPER 0x00 /* for global status (DLCI == 0) */
-#define FR_LINK_OPER 0x01
-#define FR_DLCI_DELETED 0x01 /* for circuit status (DLCI != 0) */
-#define FR_DLCI_ACTIVE 0x02
-#define FR_DLCI_WAITING 0x04
-#define FR_DLCI_NEW 0x08
-#define FR_DLCI_REPORT 0x40
-
-/*----------------------------------------------------------------------------
- * Global Statistics Block.
- * This structure is returned by the FR_READ_STATISTICS command when
- * dcli == 0.
- */
-typedef struct fr_link_stat
-{
- unsigned short rx_too_long PACKED; /* 00h: */
- unsigned short rx_dropped PACKED; /* 02h: */
- unsigned short rx_dropped2 PACKED; /* 04h: */
- unsigned short rx_bad_dlci PACKED; /* 06h: */
- unsigned short rx_bad_format PACKED; /* 08h: */
- unsigned short retransmitted PACKED; /* 0Ah: */
- unsigned short cpe_tx_FSE PACKED; /* 0Ch: */
- unsigned short cpe_tx_LIV PACKED; /* 0Eh: */
- unsigned short cpe_rx_FSR PACKED; /* 10h: */
- unsigned short cpe_rx_LIV PACKED; /* 12h: */
- unsigned short node_rx_FSE PACKED; /* 14h: */
- unsigned short node_rx_LIV PACKED; /* 16h: */
- unsigned short node_tx_FSR PACKED; /* 18h: */
- unsigned short node_tx_LIV PACKED; /* 1Ah: */
- unsigned short rx_ISF_err PACKED; /* 1Ch: */
- unsigned short rx_unsolicited PACKED; /* 1Eh: */
- unsigned short rx_SSN_err PACKED; /* 20h: */
- unsigned short rx_RSN_err PACKED; /* 22h: */
- unsigned short T391_timeouts PACKED; /* 24h: */
- unsigned short T392_timeouts PACKED; /* 26h: */
- unsigned short N392_reached PACKED; /* 28h: */
- unsigned short cpe_SSN_RSN PACKED; /* 2Ah: */
- unsigned short current_SSN PACKED; /* 2Ch: */
- unsigned short current_RSN PACKED; /* 2Eh: */
- unsigned short curreny_T391 PACKED; /* 30h: */
- unsigned short current_T392 PACKED; /* 32h: */
- unsigned short current_N392 PACKED; /* 34h: */
- unsigned short current_N393 PACKED; /* 36h: */
-} fr_link_stat_t;
-
-/*----------------------------------------------------------------------------
- * DLCI statistics.
- * This structure is returned by the FR_READ_STATISTICS command when
- * dlci != 0.
- */
-typedef struct fr_dlci_stat
-{
- unsigned long tx_frames PACKED; /* 00h: */
- unsigned long tx_bytes PACKED; /* 04h: */
- unsigned long rx_frames PACKED; /* 08h: */
- unsigned long rx_bytes PACKED; /* 0Ch: */
- unsigned long rx_dropped PACKED; /* 10h: */
- unsigned long rx_inactive PACKED; /* 14h: */
- unsigned long rx_exceed_CIR PACKED; /* 18h: */
- unsigned long rx_DE_set PACKED; /* 1Ch: */
- unsigned long tx_throughput PACKED; /* 20h: */
- unsigned long tx_calc_timer PACKED; /* 24h: */
- unsigned long rx_throughput PACKED; /* 28h: */
- unsigned long rx_calc_timer PACKED; /* 2Ch: */
-} fr_dlci_stat_t;
-
-/*----------------------------------------------------------------------------
- * Communications error statistics.
- * This structure is returned by the FR_READ_ERROR_STATS command.
- */
-typedef struct fr_comm_stat
-{
- unsigned char rx_overruns PACKED; /* 00h: */
- unsigned char rx_bad_crc PACKED; /* 01h: */
- unsigned char rx_aborts PACKED; /* 02h: */
- unsigned char rx_too_long PACKED; /* 03h: */
- unsigned char tx_aborts PACKED; /* 04h: */
- unsigned char tx_underruns PACKED; /* 05h: */
- unsigned char tx_missed_undr PACKED; /* 06h: */
- unsigned char dcd_dropped PACKED; /* 07h: */
- unsigned char cts_dropped PACKED; /* 08h: */
-} fr_comm_stat_t;
-
-/*----------------------------------------------------------------------------
- * Defines for the FR_ISSUE_IS_FRAME command.
- */
-#define FR_ISF_LVE 2 /* issue Link Verification Enquiry */
-#define FR_ISF_FSE 3 /* issue Full Status Enquiry */
-
-/*----------------------------------------------------------------------------
- * Frame Relay ARP Header -- Used for Dynamic route creation with InvARP
- */
-
-typedef struct arphdr_fr
- {
- unsigned short ar_hrd PACKED; /* format of hardware addr */
- unsigned short ar_pro PACKED; /* format of protocol addr */
- unsigned char ar_hln PACKED; /* length of hardware addr */
- unsigned char ar_pln PACKED; /* length of protocol addr */
- unsigned short ar_op PACKED; /* ARP opcode */
- unsigned short ar_sha PACKED; /* Sender DLCI addr 2 bytes */
- unsigned long ar_sip PACKED; /* Sender IP addr 4 bytes */
- unsigned short ar_tha PACKED; /* Target DLCI addr 2 bytes */
- unsigned long ar_tip PACKED; /* Target IP addr 4 bytes */
- } arphdr_fr_t;
-
-/*----------------------------------------------------------------------------
- * Frame Relay RFC 1490 SNAP Header -- Used to check for ARP packets
- */
-typedef struct arphdr_1490
- {
- unsigned char control PACKED; /* UI, etc... */
- unsigned char pad PACKED; /* Pad */
- unsigned char NLPID PACKED; /* SNAP */
- unsigned char OUI[3] PACKED; /* Ethertype, etc... */
- unsigned short PID PACKED; /* ARP, IP, etc... */
- } arphdr_1490_t;
-
-/* UDP/IP packet (for UDP management) layout */
-
-/* The embedded control block for UDP mgmt
- This is essentially a mailbox structure, without the large data field */
-
-typedef struct {
- unsigned char opp_flag PACKED; /* the opp flag */
- unsigned char command PACKED; /* command code */
- unsigned short length PACKED; /* length of data buffer */
- unsigned char result PACKED; /* return code */
- unsigned short dlci PACKED; /* DLCI number */
- unsigned char attr PACKED; /* FECN, BECN, DE and C/R bits */
- unsigned short rxlost1 PACKED; /* frames discarded at int. level */
- unsigned long rxlost2 PACKED; /* frames discarded at app. level */
- unsigned char rsrv[2] PACKED; /* reserved for future use */
-} cblock_t;
-
-
-/* UDP management packet layout (data area of ip packet) */
-
-typedef struct {
- unsigned char control PACKED;
- unsigned char NLPID PACKED;
-} fr_encap_hdr_t;
-
-typedef struct {
-// fr_encap_hdr_t fr_encap_hdr PACKED;
- ip_pkt_t ip_pkt PACKED;
- udp_pkt_t udp_pkt PACKED;
- wp_mgmt_t wp_mgmt PACKED;
- cblock_t cblock PACKED;
- unsigned char data[4080] PACKED;
-} fr_udp_pkt_t;
-
-
-/* valid ip_protocol for UDP management */
-#define UDPMGMT_UDP_PROTOCOL 0x11
-
-#define UDPMGMT_FPIPE_SIGNATURE "FPIPE8ND"
-#define UDPMGMT_DRVRSTATS_SIGNATURE "DRVSTATS"
-
-/* values for request/reply byte */
-#define UDPMGMT_REQUEST 0x01
-#define UDPMGMT_REPLY 0x02
-#define UDP_OFFSET 12
-
-typedef struct {
- unsigned long if_send_entry;
- unsigned long if_send_skb_null;
- unsigned long if_send_broadcast;
- unsigned long if_send_multicast;
- unsigned long if_send_critical_ISR;
- unsigned long if_send_critical_non_ISR;
- unsigned long if_send_busy;
- unsigned long if_send_busy_timeout;
- unsigned long if_send_DRVSTATS_request;
- unsigned long if_send_FPIPE_request;
- unsigned long if_send_wan_disconnected;
- unsigned long if_send_dlci_disconnected;
- unsigned long if_send_no_bfrs;
- unsigned long if_send_adptr_bfrs_full;
- unsigned long if_send_bfrs_passed_to_adptr;
- unsigned long if_send_consec_send_fail;
-} drvstats_if_send_t;
-
-typedef struct {
- unsigned long rx_intr_no_socket;
- unsigned long rx_intr_dev_not_started;
- unsigned long rx_intr_DRVSTATS_request;
- unsigned long rx_intr_FPIPE_request;
- unsigned long rx_intr_bfr_not_passed_to_stack;
- unsigned long rx_intr_bfr_passed_to_stack;
- } drvstats_rx_intr_t;
-
-typedef struct {
- unsigned long UDP_FPIPE_mgmt_kmalloc_err;
- unsigned long UDP_FPIPE_mgmt_direction_err;
- unsigned long UDP_FPIPE_mgmt_adptr_type_err;
- unsigned long UDP_FPIPE_mgmt_adptr_cmnd_OK;
- unsigned long UDP_FPIPE_mgmt_adptr_cmnd_timeout;
- unsigned long UDP_FPIPE_mgmt_adptr_send_passed;
- unsigned long UDP_FPIPE_mgmt_adptr_send_failed;
- unsigned long UDP_FPIPE_mgmt_not_passed_to_stack;
- unsigned long UDP_FPIPE_mgmt_passed_to_stack;
- unsigned long UDP_FPIPE_mgmt_no_socket;
- unsigned long UDP_DRVSTATS_mgmt_kmalloc_err;
- unsigned long UDP_DRVSTATS_mgmt_adptr_cmnd_OK;
- unsigned long UDP_DRVSTATS_mgmt_adptr_cmnd_timeout;
- unsigned long UDP_DRVSTATS_mgmt_adptr_send_passed;
- unsigned long UDP_DRVSTATS_mgmt_adptr_send_failed;
- unsigned long UDP_DRVSTATS_mgmt_not_passed_to_stack;
- unsigned long UDP_DRVSTATS_mgmt_passed_to_stack;
- unsigned long UDP_DRVSTATS_mgmt_no_socket;
-} drvstats_gen_t;
-
-typedef struct {
- unsigned char attr PACKED;
- unsigned short time_stamp PACKED;
- unsigned char reserved[13] PACKED;
-} api_rx_hdr_t;
-
-typedef struct {
- api_rx_hdr_t api_rx_hdr PACKED;
- void * data PACKED;
-} api_rx_element_t;
-
-typedef struct {
- unsigned char attr PACKED;
- unsigned char reserved[15] PACKED;
-} api_tx_hdr_t;
-
-typedef struct {
- api_tx_hdr_t api_tx_hdr PACKED;
- void * data PACKED;
-} api_tx_element_t;
-
-#ifdef _MSC_
-# pragma pack()
-#endif
-#endif /* _SDLA_FR_H */
-
#include <net/checksum.h>
#include <linux/rcupdate.h>
#include <linux/dmaengine.h>
+#include <linux/hrtimer.h>
#define HAVE_ALLOC_SKB /* For the drivers to know */
#define HAVE_ALIGNABLE_SKB /* Ditto 8) */
+/* Don't change this without changing skb_csum_unnecessary! */
#define CHECKSUM_NONE 0
-#define CHECKSUM_PARTIAL 1
-#define CHECKSUM_UNNECESSARY 2
-#define CHECKSUM_COMPLETE 3
+#define CHECKSUM_UNNECESSARY 1
+#define CHECKSUM_COMPLETE 2
+#define CHECKSUM_PARTIAL 3
#define SKB_DATA_ALIGN(X) (((X) + (SMP_CACHE_BYTES - 1)) & \
~(SMP_CACHE_BYTES - 1))
-#define SKB_MAX_ORDER(X, ORDER) (((PAGE_SIZE << (ORDER)) - (X) - \
- sizeof(struct skb_shared_info)) & \
- ~(SMP_CACHE_BYTES - 1))
+#define SKB_WITH_OVERHEAD(X) \
+ (((X) - sizeof(struct skb_shared_info)) & \
+ ~(SMP_CACHE_BYTES - 1))
+#define SKB_MAX_ORDER(X, ORDER) \
+ SKB_WITH_OVERHEAD((PAGE_SIZE << (ORDER)) - (X))
#define SKB_MAX_HEAD(X) (SKB_MAX_ORDER((X), 0))
#define SKB_MAX_ALLOC (SKB_MAX_ORDER(0, 2))
* NONE: skb is checksummed by protocol or csum is not required.
*
* PARTIAL: device is required to csum packet as seen by hard_start_xmit
- * from skb->h.raw to the end and to record the checksum
- * at skb->h.raw+skb->csum.
+ * from skb->transport_header to the end and to record the checksum
+ * at skb->transport_header + skb->csum.
*
* Device must show its capabilities in dev->features, set
* at device setup time.
*/
struct net_device;
+struct scatterlist;
-#ifdef CONFIG_NETFILTER
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
struct nf_conntrack {
atomic_t use;
- void (*destroy)(struct nf_conntrack *);
};
+#endif
#ifdef CONFIG_BRIDGE_NETFILTER
struct nf_bridge_info {
};
#endif
-#endif
-
struct sk_buff_head {
/* These two members must be first. */
struct sk_buff *next;
#define SKB_DATAREF_SHIFT 16
#define SKB_DATAREF_MASK ((1 << SKB_DATAREF_SHIFT) - 1)
-struct skb_timeval {
- u32 off_sec;
- u32 off_usec;
-};
-
enum {
SKB_FCLONE_UNAVAILABLE,
SKB_GSO_TCPV6 = 1 << 4,
};
+#if BITS_PER_LONG > 32
+#define NET_SKBUFF_DATA_USES_OFFSET 1
+#endif
+
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+typedef unsigned int sk_buff_data_t;
+#else
+typedef unsigned char *sk_buff_data_t;
+#endif
+
/**
* struct sk_buff - socket buffer
* @next: Next buffer in list
* @dev: Device we arrived on/are leaving by
* @iif: ifindex of device we arrived on
* @h: Transport layer header
- * @nh: Network layer header
- * @mac: Link layer header
+ * @network_header: Network layer header
+ * @mac_header: Link layer header
* @dst: destination entry
* @sp: the security path, used for xfrm
* @cb: Control buffer. Free for use by every layer. Put private vars here
* @len: Length of actual data
* @data_len: Data length
* @mac_len: Length of link layer header
- * @csum: Checksum
+ * @csum: Checksum (must include start/offset pair)
+ * @csum_start: Offset from skb->head where checksumming should start
+ * @csum_offset: Offset from csum_start where checksum should be stored
* @local_df: allow local fragmentation
* @cloned: Head may be cloned (check refcnt to be sure)
* @nohdr: Payload reference only, must not modify header
struct sk_buff *prev;
struct sock *sk;
- struct skb_timeval tstamp;
+ ktime_t tstamp;
struct net_device *dev;
int iif;
/* 4 byte hole on 64 bit*/
- union {
- struct tcphdr *th;
- struct udphdr *uh;
- struct icmphdr *icmph;
- struct igmphdr *igmph;
- struct iphdr *ipiph;
- struct ipv6hdr *ipv6h;
- unsigned char *raw;
- } h;
-
- union {
- struct iphdr *iph;
- struct ipv6hdr *ipv6h;
- struct arphdr *arph;
- unsigned char *raw;
- } nh;
-
- union {
- unsigned char *raw;
- } mac;
-
struct dst_entry *dst;
struct sec_path *sp;
mac_len;
union {
__wsum csum;
- __u32 csum_offset;
+ struct {
+ __u16 csum_start;
+ __u16 csum_offset;
+ };
};
__u32 priority;
__u8 local_df:1,
__be16 protocol;
void (*destructor)(struct sk_buff *skb);
-#ifdef CONFIG_NETFILTER
- struct nf_conntrack *nfct;
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ struct nf_conntrack *nfct;
struct sk_buff *nfct_reasm;
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
struct nf_bridge_info *nf_bridge;
#endif
-#endif /* CONFIG_NETFILTER */
#ifdef CONFIG_NET_SCHED
__u16 tc_index; /* traffic control index */
#ifdef CONFIG_NET_CLS_ACT
__u32 mark;
+ sk_buff_data_t transport_header;
+ sk_buff_data_t network_header;
+ sk_buff_data_t mac_header;
/* These elements must be at the end, see alloc_skb() for details. */
+ sk_buff_data_t tail;
+ sk_buff_data_t end;
+ unsigned char *head,
+ *data;
unsigned int truesize;
atomic_t users;
- unsigned char *head,
- *data,
- *tail,
- *end;
};
#ifdef __KERNEL__
extern struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
int newheadroom, int newtailroom,
gfp_t priority);
+extern int skb_to_sgvec(struct sk_buff *skb,
+ struct scatterlist *sg, int offset,
+ int len);
+extern int skb_cow_data(struct sk_buff *skb, int tailbits,
+ struct sk_buff **trailer);
extern int skb_pad(struct sk_buff *skb, int pad);
#define dev_kfree_skb(a) kfree_skb(a)
extern void skb_over_panic(struct sk_buff *skb, int len,
unsigned int to, struct ts_config *config,
struct ts_state *state);
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
+{
+ return skb->head + skb->end;
+}
+#else
+static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
+{
+ return skb->end;
+}
+#endif
+
/* Internal */
-#define skb_shinfo(SKB) ((struct skb_shared_info *)((SKB)->end))
+#define skb_shinfo(SKB) ((struct skb_shared_info *)(skb_end_pointer(SKB)))
/**
* skb_queue_empty - check if a queue is empty
#define SKB_FRAG_ASSERT(skb) BUG_ON(skb_shinfo(skb)->frag_list)
#define SKB_LINEAR_ASSERT(skb) BUG_ON(skb_is_nonlinear(skb))
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+static inline unsigned char *skb_tail_pointer(const struct sk_buff *skb)
+{
+ return skb->head + skb->tail;
+}
+
+static inline void skb_reset_tail_pointer(struct sk_buff *skb)
+{
+ skb->tail = skb->data - skb->head;
+}
+
+static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
+{
+ skb_reset_tail_pointer(skb);
+ skb->tail += offset;
+}
+#else /* NET_SKBUFF_DATA_USES_OFFSET */
+static inline unsigned char *skb_tail_pointer(const struct sk_buff *skb)
+{
+ return skb->tail;
+}
+
+static inline void skb_reset_tail_pointer(struct sk_buff *skb)
+{
+ skb->tail = skb->data;
+}
+
+static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
+{
+ skb->tail = skb->data + offset;
+}
+
+#endif /* NET_SKBUFF_DATA_USES_OFFSET */
+
/*
* Add data to an sk_buff
*/
static inline unsigned char *__skb_put(struct sk_buff *skb, unsigned int len)
{
- unsigned char *tmp = skb->tail;
+ unsigned char *tmp = skb_tail_pointer(skb);
SKB_LINEAR_ASSERT(skb);
skb->tail += len;
skb->len += len;
*/
static inline unsigned char *skb_put(struct sk_buff *skb, unsigned int len)
{
- unsigned char *tmp = skb->tail;
+ unsigned char *tmp = skb_tail_pointer(skb);
SKB_LINEAR_ASSERT(skb);
skb->tail += len;
skb->len += len;
- if (unlikely(skb->tail>skb->end))
+ if (unlikely(skb->tail > skb->end))
skb_over_panic(skb, len, current_text_addr());
return tmp;
}
skb->tail += len;
}
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
+{
+ return skb->head + skb->transport_header;
+}
+
+static inline void skb_reset_transport_header(struct sk_buff *skb)
+{
+ skb->transport_header = skb->data - skb->head;
+}
+
+static inline void skb_set_transport_header(struct sk_buff *skb,
+ const int offset)
+{
+ skb_reset_transport_header(skb);
+ skb->transport_header += offset;
+}
+
+static inline unsigned char *skb_network_header(const struct sk_buff *skb)
+{
+ return skb->head + skb->network_header;
+}
+
+static inline void skb_reset_network_header(struct sk_buff *skb)
+{
+ skb->network_header = skb->data - skb->head;
+}
+
+static inline void skb_set_network_header(struct sk_buff *skb, const int offset)
+{
+ skb_reset_network_header(skb);
+ skb->network_header += offset;
+}
+
+static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
+{
+ return skb->head + skb->mac_header;
+}
+
+static inline int skb_mac_header_was_set(const struct sk_buff *skb)
+{
+ return skb->mac_header != ~0U;
+}
+
+static inline void skb_reset_mac_header(struct sk_buff *skb)
+{
+ skb->mac_header = skb->data - skb->head;
+}
+
+static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
+{
+ skb_reset_mac_header(skb);
+ skb->mac_header += offset;
+}
+
+#else /* NET_SKBUFF_DATA_USES_OFFSET */
+
+static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
+{
+ return skb->transport_header;
+}
+
+static inline void skb_reset_transport_header(struct sk_buff *skb)
+{
+ skb->transport_header = skb->data;
+}
+
+static inline void skb_set_transport_header(struct sk_buff *skb,
+ const int offset)
+{
+ skb->transport_header = skb->data + offset;
+}
+
+static inline unsigned char *skb_network_header(const struct sk_buff *skb)
+{
+ return skb->network_header;
+}
+
+static inline void skb_reset_network_header(struct sk_buff *skb)
+{
+ skb->network_header = skb->data;
+}
+
+static inline void skb_set_network_header(struct sk_buff *skb, const int offset)
+{
+ skb->network_header = skb->data + offset;
+}
+
+static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
+{
+ return skb->mac_header;
+}
+
+static inline int skb_mac_header_was_set(const struct sk_buff *skb)
+{
+ return skb->mac_header != NULL;
+}
+
+static inline void skb_reset_mac_header(struct sk_buff *skb)
+{
+ skb->mac_header = skb->data;
+}
+
+static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
+{
+ skb->mac_header = skb->data + offset;
+}
+#endif /* NET_SKBUFF_DATA_USES_OFFSET */
+
+static inline int skb_transport_offset(const struct sk_buff *skb)
+{
+ return skb_transport_header(skb) - skb->data;
+}
+
+static inline u32 skb_network_header_len(const struct sk_buff *skb)
+{
+ return skb->transport_header - skb->network_header;
+}
+
+static inline int skb_network_offset(const struct sk_buff *skb)
+{
+ return skb_network_header(skb) - skb->data;
+}
+
/*
* CPUs often take a performance hit when accessing unaligned memory
* locations. The actual performance hit varies, it can be small if the
WARN_ON(1);
return;
}
- skb->len = len;
- skb->tail = skb->data + len;
+ skb->len = len;
+ skb_set_tail_pointer(skb, len);
}
/**
int len, __wsum csum);
extern int skb_copy_bits(const struct sk_buff *skb, int offset,
void *to, int len);
-extern int skb_store_bits(const struct sk_buff *skb, int offset,
- void *from, int len);
+extern int skb_store_bits(struct sk_buff *skb, int offset,
+ const void *from, int len);
extern __wsum skb_copy_and_csum_bits(const struct sk_buff *skb,
int offset, u8 *to, int len,
__wsum csum);
return buffer;
}
+static inline void skb_copy_from_linear_data(const struct sk_buff *skb,
+ void *to,
+ const unsigned int len)
+{
+ memcpy(to, skb->data, len);
+}
+
+static inline void skb_copy_from_linear_data_offset(const struct sk_buff *skb,
+ const int offset, void *to,
+ const unsigned int len)
+{
+ memcpy(to, skb->data + offset, len);
+}
+
+static inline void skb_copy_to_linear_data(struct sk_buff *skb,
+ const void *from,
+ const unsigned int len)
+{
+ memcpy(skb->data, from, len);
+}
+
+static inline void skb_copy_to_linear_data_offset(struct sk_buff *skb,
+ const int offset,
+ const void *from,
+ const unsigned int len)
+{
+ memcpy(skb->data + offset, from, len);
+}
+
extern void skb_init(void);
-extern void skb_add_mtu(int mtu);
/**
* skb_get_timestamp - get timestamp from a skb
*/
static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval *stamp)
{
- stamp->tv_sec = skb->tstamp.off_sec;
- stamp->tv_usec = skb->tstamp.off_usec;
+ *stamp = ktime_to_timeval(skb->tstamp);
}
-/**
- * skb_set_timestamp - set timestamp of a skb
- * @skb: skb to set stamp of
- * @stamp: pointer to struct timeval to get stamp from
- *
- * Timestamps are stored in the skb as offsets to a base timestamp.
- * This function converts a struct timeval to an offset and stores
- * it in the skb.
- */
-static inline void skb_set_timestamp(struct sk_buff *skb, const struct timeval *stamp)
+static inline void __net_timestamp(struct sk_buff *skb)
+{
+ skb->tstamp = ktime_get_real();
+}
+
+static inline ktime_t net_timedelta(ktime_t t)
{
- skb->tstamp.off_sec = stamp->tv_sec;
- skb->tstamp.off_usec = stamp->tv_usec;
+ return ktime_sub(ktime_get_real(), t);
}
-extern void __net_timestamp(struct sk_buff *skb);
+extern __sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len);
extern __sum16 __skb_checksum_complete(struct sk_buff *skb);
+static inline int skb_csum_unnecessary(const struct sk_buff *skb)
+{
+ return skb->ip_summed & CHECKSUM_UNNECESSARY;
+}
+
/**
* skb_checksum_complete - Calculate checksum of an entire packet
* @skb: packet to process
*/
static inline unsigned int skb_checksum_complete(struct sk_buff *skb)
{
- return skb->ip_summed != CHECKSUM_UNNECESSARY &&
- __skb_checksum_complete(skb);
+ return skb_csum_unnecessary(skb) ?
+ 0 : __skb_checksum_complete(skb);
}
-#ifdef CONFIG_NETFILTER
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+extern void nf_conntrack_destroy(struct nf_conntrack *nfct);
static inline void nf_conntrack_put(struct nf_conntrack *nfct)
{
if (nfct && atomic_dec_and_test(&nfct->use))
- nfct->destroy(nfct);
+ nf_conntrack_destroy(nfct);
}
static inline void nf_conntrack_get(struct nf_conntrack *nfct)
{
if (nfct)
atomic_inc(&nfct->use);
}
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
static inline void nf_conntrack_get_reasm(struct sk_buff *skb)
{
if (skb)
#endif /* CONFIG_BRIDGE_NETFILTER */
static inline void nf_reset(struct sk_buff *skb)
{
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
nf_conntrack_put(skb->nfct);
skb->nfct = NULL;
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
nf_conntrack_put_reasm(skb->nfct_reasm);
skb->nfct_reasm = NULL;
#endif
#endif
}
-#else /* CONFIG_NETFILTER */
-static inline void nf_reset(struct sk_buff *skb) {}
-#endif /* CONFIG_NETFILTER */
+/* Note: This doesn't put any conntrack and bridge info in dst. */
+static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
+{
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ dst->nfct = src->nfct;
+ nf_conntrack_get(src->nfct);
+ dst->nfctinfo = src->nfctinfo;
+ dst->nfct_reasm = src->nfct_reasm;
+ nf_conntrack_get_reasm(src->nfct_reasm);
+#endif
+#ifdef CONFIG_BRIDGE_NETFILTER
+ dst->nf_bridge = src->nf_bridge;
+ nf_bridge_get(src->nf_bridge);
+#endif
+}
+
+static inline void nf_copy(struct sk_buff *dst, const struct sk_buff *src)
+{
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ nf_conntrack_put(dst->nfct);
+ nf_conntrack_put_reasm(dst->nfct_reasm);
+#endif
+#ifdef CONFIG_BRIDGE_NETFILTER
+ nf_bridge_put(dst->nf_bridge);
+#endif
+ __nf_copy(dst, src);
+}
#ifdef CONFIG_NETWORK_SECMARK
static inline void skb_copy_secmark(struct sk_buff *to, const struct sk_buff *from)
return skb_shinfo(skb)->gso_size;
}
+static inline void skb_forward_csum(struct sk_buff *skb)
+{
+ /* Unfortunately we don't support this one. Any brave souls? */
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->ip_summed = CHECKSUM_NONE;
+}
+
#endif /* __KERNEL__ */
#endif /* _LINUX_SKBUFF_H */
#define AF_TIPC 30 /* TIPC sockets */
#define AF_BLUETOOTH 31 /* Bluetooth sockets */
#define AF_IUCV 32 /* IUCV sockets */
-#define AF_MAX 33 /* For now.. */
+#define AF_RXRPC 33 /* RxRPC sockets */
+#define AF_MAX 34 /* For now.. */
/* Protocol families, same as address families. */
#define PF_UNSPEC AF_UNSPEC
#define PF_TIPC AF_TIPC
#define PF_BLUETOOTH AF_BLUETOOTH
#define PF_IUCV AF_IUCV
+#define PF_RXRPC AF_RXRPC
#define PF_MAX AF_MAX
/* Maximum queue length specifiable by listen. */
#define SOL_DCCP 269
#define SOL_NETLINK 270
#define SOL_TIPC 271
+#define SOL_RXRPC 272
/* IPX options */
#define IPX_TYPE 1
#ifndef __HAVE_ARCH_STRNICMP
extern int strnicmp(const char *, const char *, __kernel_size_t);
#endif
+#ifndef __HAVE_ARCH_STRCASECMP
+extern int strcasecmp(const char *s1, const char *s2);
+#endif
+#ifndef __HAVE_ARCH_STRNCASECMP
+extern int strncasecmp(const char *s1, const char *s2, size_t n);
+#endif
#ifndef __HAVE_ARCH_STRCHR
extern char * strchr(const char *,int);
#endif
NET_CORE_BUDGET=19,
NET_CORE_AEVENT_ETIME=20,
NET_CORE_AEVENT_RSEQTH=21,
+ NET_CORE_WARNINGS=22,
};
/* /proc/sys/net/ethernet */
NET_CIPSOV4_RBM_STRICTVALID=121,
NET_TCP_AVAIL_CONG_CONTROL=122,
NET_TCP_ALLOWED_CONG_CONTROL=123,
+ NET_TCP_MAX_SSTHRESH=124,
+ NET_TCP_FRTO_RESPONSE=125,
};
enum {
NET_IPV6_RTR_PROBE_INTERVAL=21,
NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22,
NET_IPV6_PROXY_NDP=23,
+ NET_IPV6_ACCEPT_SOURCE_ROUTE=25,
__NET_IPV6_MAX
};
NET_BRIDGE_NF_CALL_IPTABLES = 2,
NET_BRIDGE_NF_CALL_IP6TABLES = 3,
NET_BRIDGE_NF_FILTER_VLAN_TAGGED = 4,
+ NET_BRIDGE_NF_FILTER_PPPOE_TAGGED = 5,
};
/* CTL_FS names: */
*/
-#define TASKSTATS_VERSION 3
+#define TASKSTATS_VERSION 4
#define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN
* in linux/sched.h */
/* Delay waiting for cpu, while runnable
* count, delay_total NOT updated atomically
*/
- __u64 cpu_count;
+ __u64 cpu_count __attribute__((aligned(8)));
__u64 cpu_delay_total;
/* Following four fields atomically updated using task->delays->lock */
/* Basic Accounting Fields start */
char ac_comm[TS_COMM_LEN]; /* Command name */
- __u8 ac_sched; /* Scheduling discipline */
+ __u8 ac_sched __attribute__((aligned(8)));
+ /* Scheduling discipline */
__u8 ac_pad[3];
- __u32 ac_uid; /* User ID */
+ __u32 ac_uid __attribute__((aligned(8)));
+ /* User ID */
__u32 ac_gid; /* Group ID */
__u32 ac_pid; /* Process ID */
__u32 ac_ppid; /* Parent process ID */
__u32 ac_btime; /* Begin time [sec since 1970] */
- __u64 ac_etime; /* Elapsed time [usec] */
+ __u64 ac_etime __attribute__((aligned(8)));
+ /* Elapsed time [usec] */
__u64 ac_utime; /* User CPU time [usec] */
__u64 ac_stime; /* SYstem CPU time [usec] */
__u64 ac_minflt; /* Minor Page Fault Count */
#include <net/inet_connection_sock.h>
#include <net/inet_timewait_sock.h>
+static inline struct tcphdr *tcp_hdr(const struct sk_buff *skb)
+{
+ return (struct tcphdr *)skb_transport_header(skb);
+}
+
+static inline unsigned int tcp_hdrlen(const struct sk_buff *skb)
+{
+ return tcp_hdr(skb)->doff * 4;
+}
+
+static inline unsigned int tcp_optlen(const struct sk_buff *skb)
+{
+ return (tcp_hdr(skb)->doff - 5) * 4;
+}
+
/* This defines a selective acknowledgement block. */
struct tcp_sack_block_wire {
__be32 start_seq;
* See RFC793 and RFC1122. The RFC writes these in capitals.
*/
u32 rcv_nxt; /* What we want to receive next */
+ u32 copied_seq; /* Head of yet unread data */
+ u32 rcv_wup; /* rcv_nxt on last window update sent */
u32 snd_nxt; /* Next sequence we send */
u32 snd_una; /* First byte we want an ack for */
u32 snd_ssthresh; /* Slow start size threshold */
u32 snd_cwnd; /* Sending congestion window */
u16 snd_cwnd_cnt; /* Linear increase counter */
- u16 snd_cwnd_clamp; /* Do not allow snd_cwnd to grow above this */
+ u32 snd_cwnd_clamp; /* Do not allow snd_cwnd to grow above this */
u32 snd_cwnd_used;
u32 snd_cwnd_stamp;
struct sk_buff_head out_of_order_queue; /* Out of order segments go here */
u32 rcv_wnd; /* Current receiver window */
- u32 rcv_wup; /* rcv_nxt on last window update sent */
u32 write_seq; /* Tail(+1) of data held in tcp send buffer */
u32 pushed_seq; /* Last pushed seq, required to talk to windows */
- u32 copied_seq; /* Head of yet unread data */
/* SACKs data */
struct tcp_sack_block duplicate_sack[1]; /* D-SACK block */
__sum16 check;
};
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
+{
+ return (struct udphdr *)skb_transport_header(skb);
+}
+#endif
+
/* UDP socket options */
#define UDP_CORK 1 /* Never send partially complete segments */
#define UDP_ENCAP 100 /* Set the socket to accept encapsulated packets */
/*
* Kill off a pending schedule_delayed_work(). Note that the work callback
- * function may still be running on return from cancel_delayed_work(). Run
- * flush_scheduled_work() to wait on it.
+ * function may still be running on return from cancel_delayed_work(), unless
+ * it returns 1 and the work doesn't re-arm itself. Run flush_workqueue() or
+ * cancel_work_sync() to wait on it.
*/
static inline int cancel_delayed_work(struct delayed_work *work)
{
int ret;
- ret = del_timer_sync(&work->timer);
+ ret = del_timer(&work->timer);
if (ret)
work_release(&work->work);
return ret;
XFRM_MSG_MIGRATE,
#define XFRM_MSG_MIGRATE XFRM_MSG_MIGRATE
+ XFRM_MSG_NEWSADINFO,
+#define XFRM_MSG_NEWSADINFO XFRM_MSG_NEWSADINFO
+ XFRM_MSG_GETSADINFO,
+#define XFRM_MSG_GETSADINFO XFRM_MSG_GETSADINFO
__XFRM_MSG_MAX
};
#define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
#define XFRM_AE_MAX (__XFRM_AE_MAX - 1)
};
+/* SAD Table filter flags */
+enum xfrm_sad_ftype_t {
+ XFRM_SAD_UNSPEC,
+ XFRM_SAD_HMASK=1,
+ XFRM_SAD_HMAX=2,
+ XFRM_SAD_CNT=4,
+ __XFRM_SAD_MAX
+
+#define XFRM_SAD_MAX (__XFRM_SAD_MAX - 1)
+};
+
struct xfrm_userpolicy_type {
__u8 type;
__u16 reserved1;
#define XFRMA_MAX (__XFRMA_MAX - 1)
};
+enum xfrm_sadattr_type_t {
+ XFRMA_SAD_UNSPEC,
+ XFRMA_SADHMASK,
+ XFRMA_SADHMAX,
+ XFRMA_SADCNT,
+ __XFRMA_SAD_MAX
+
+#define XFRMA_SAD_MAX (__XFRMA_SAD_MAX - 1)
+};
+
struct xfrm_usersa_info {
struct xfrm_selector sel;
struct xfrm_id id;
extern int ipv6_dev_get_saddr(struct net_device *dev,
struct in6_addr *daddr,
struct in6_addr *saddr);
-extern int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *);
+extern int ipv6_get_lladdr(struct net_device *dev,
+ struct in6_addr *addr,
+ unsigned char banned_flags);
extern int ipv6_rcv_saddr_equal(const struct sock *sk,
const struct sock *sk2);
extern void addrconf_join_solict(struct net_device *dev,
--- /dev/null
+/* RxRPC kernel service interface definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _NET_RXRPC_H
+#define _NET_RXRPC_H
+
+#ifdef __KERNEL__
+
+#include <linux/rxrpc.h>
+
+struct rxrpc_call;
+
+/*
+ * the mark applied to socket buffers that may be intercepted
+ */
+enum {
+ RXRPC_SKB_MARK_DATA, /* data message */
+ RXRPC_SKB_MARK_FINAL_ACK, /* final ACK received message */
+ RXRPC_SKB_MARK_BUSY, /* server busy message */
+ RXRPC_SKB_MARK_REMOTE_ABORT, /* remote abort message */
+ RXRPC_SKB_MARK_NET_ERROR, /* network error message */
+ RXRPC_SKB_MARK_LOCAL_ERROR, /* local error message */
+ RXRPC_SKB_MARK_NEW_CALL, /* local error message */
+};
+
+typedef void (*rxrpc_interceptor_t)(struct sock *, unsigned long,
+ struct sk_buff *);
+extern void rxrpc_kernel_intercept_rx_messages(struct socket *,
+ rxrpc_interceptor_t);
+extern struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
+ struct sockaddr_rxrpc *,
+ struct key *,
+ unsigned long,
+ gfp_t);
+extern int rxrpc_kernel_send_data(struct rxrpc_call *, struct msghdr *,
+ size_t);
+extern void rxrpc_kernel_abort_call(struct rxrpc_call *, u32);
+extern void rxrpc_kernel_end_call(struct rxrpc_call *);
+extern bool rxrpc_kernel_is_data_last(struct sk_buff *);
+extern u32 rxrpc_kernel_get_abort_code(struct sk_buff *);
+extern int rxrpc_kernel_get_error_number(struct sk_buff *);
+extern void rxrpc_kernel_data_delivered(struct sk_buff *);
+extern void rxrpc_kernel_free_skb(struct sk_buff *);
+extern struct rxrpc_call *rxrpc_kernel_accept_call(struct socket *,
+ unsigned long);
+extern int rxrpc_kernel_reject_call(struct socket *);
+
+#endif /* __KERNEL__ */
+#endif /* _NET_RXRPC_H */
static inline __be16 ax25_type_trans(struct sk_buff *skb, struct net_device *dev)
{
skb->dev = dev;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_HOST;
- skb->mac.raw = skb->data;
return htons(ETH_P_AX25);
}
__u8 dlen;
} __attribute__ ((packed));
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)
+{
+ return (struct hci_event_hdr *)skb->data;
+}
+
+static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)
+{
+ return (struct hci_acl_hdr *)skb->data;
+}
+
+static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
+{
+ return (struct hci_sco_hdr *)skb->data;
+}
+#endif
+
/* Command opcode pack/unpack */
#define hci_opcode_pack(ogf, ocf) (__u16) ((ocf & 0x03ff)|(ogf << 10))
#define hci_opcode_ogf(op) (op >> 10)
--- /dev/null
+#ifndef __NET_CFG80211_H
+#define __NET_CFG80211_H
+
+#include <linux/netlink.h>
+#include <linux/skbuff.h>
+#include <net/genetlink.h>
+
+/*
+ * 802.11 configuration in-kernel interface
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+/* from net/wireless.h */
+struct wiphy;
+
+/**
+ * struct cfg80211_ops - backend description for wireless configuration
+ *
+ * This struct is registered by fullmac card drivers and/or wireless stacks
+ * in order to handle configuration requests on their interfaces.
+ *
+ * All callbacks except where otherwise noted should return 0
+ * on success or a negative error code.
+ *
+ * All operations are currently invoked under rtnl for consistency with the
+ * wireless extensions but this is subject to reevaluation as soon as this
+ * code is used more widely and we have a first user without wext.
+ *
+ * @add_virtual_intf: create a new virtual interface with the given name
+ *
+ * @del_virtual_intf: remove the virtual interface determined by ifindex.
+ */
+struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+ unsigned int type);
+ int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
+};
+
+#endif /* __NET_CFG80211_H */
*/
#define CIPSO_V4_OPTEXIST(x) (IPCB(x)->opt.cipso != 0)
-#define CIPSO_V4_OPTPTR(x) ((x)->nh.raw + IPCB(x)->opt.cipso)
+#define CIPSO_V4_OPTPTR(x) (skb_network_header(x) + IPCB(x)->opt.cipso)
/*
* DOI List Functions
};
extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
+extern int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
#else /* defined(CONFIG_COMPAT) */
#define compat_msghdr msghdr /* to avoid compiler warnings */
extern unsigned dnet_addr_type(__le16 addr);
extern int dn_fib_lookup(struct flowi *fl, struct dn_fib_res *res);
-/*
- * rtnetlink interface
- */
-extern int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
-extern int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
-extern int dn_fib_rtm_delrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
-extern int dn_fib_rtm_newrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
-extern int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb);
-
extern void dn_fib_free_info(struct dn_fib_info *fi);
static inline void dn_fib_info_put(struct dn_fib_info *fi)
extern struct sk_buff *dn_alloc_skb(struct sock *sk, int size, gfp_t pri);
extern int dn_route_output_sock(struct dst_entry **pprt, struct flowi *, struct sock *sk, int flags);
extern int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb);
-extern int dn_cache_getroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
extern void dn_rt_cache_flush(int delay);
/* Masks for flags field */
} auth;
};
-extern int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len);
-extern int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer);
extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
static inline int esp_mac_digest(struct esp_data *esp, struct sk_buff *skb,
#include <linux/netdevice.h>
#include <linux/fib_rules.h>
#include <net/flow.h>
-#include <net/netlink.h>
+#include <net/rtnetlink.h>
struct fib_rule
{
u32 flags;
u32 table;
u8 action;
+ u32 target;
+ struct fib_rule * ctarget;
struct rcu_head rcu;
};
struct list_head list;
int rule_size;
int addr_size;
+ int unresolved_rules;
+ int nr_goto_rules;
int (*action)(struct fib_rule *,
struct flowi *, int,
u32 (*default_pref)(void);
size_t (*nlmsg_payload)(struct fib_rule *);
+ /* Called after modifications to the rules set, must flush
+ * the route cache if one exists. */
+ void (*flush_cache)(void);
+
int nlgroup;
struct nla_policy *policy;
struct list_head *rules_list;
[FRA_PRIORITY] = { .type = NLA_U32 }, \
[FRA_FWMARK] = { .type = NLA_U32 }, \
[FRA_FWMASK] = { .type = NLA_U32 }, \
- [FRA_TABLE] = { .type = NLA_U32 }
+ [FRA_TABLE] = { .type = NLA_U32 }, \
+ [FRA_GOTO] = { .type = NLA_U32 }
static inline void fib_rule_get(struct fib_rule *rule)
{
extern int fib_rules_lookup(struct fib_rules_ops *,
struct flowi *, int flags,
struct fib_lookup_arg *);
-
-extern int fib_nl_newrule(struct sk_buff *,
- struct nlmsghdr *, void *);
-extern int fib_nl_delrule(struct sk_buff *,
- struct nlmsghdr *, void *);
-extern int fib_rules_dump(struct sk_buff *,
- struct netlink_callback *, int);
#endif
#include <linux/in6.h>
#include <linux/ipv6.h>
#include <linux/types.h>
+#include <linux/jhash.h>
+
+#include <net/inet_sock.h>
#include <net/ipv6.h>
static inline unsigned int inet6_ehashfn(const struct in6_addr *laddr, const u16 lport,
const struct in6_addr *faddr, const __be16 fport)
{
- unsigned int hashent = (lport ^ (__force u16)fport);
+ u32 ports = (lport ^ (__force u16)fport);
- hashent ^= (__force u32)(laddr->s6_addr32[3] ^ faddr->s6_addr32[3]);
- hashent ^= hashent >> 16;
- hashent ^= hashent >> 8;
- return hashent;
+ return jhash_3words((__force u32)laddr->s6_addr32[3],
+ (__force u32)faddr->s6_addr32[3],
+ ports, inet_ehash_secret);
}
static inline int inet6_sk_ehashfn(const struct sock *sk)
{
switch (skb->protocol) {
case __constant_htons(ETH_P_IP):
- if (skb->nh.raw + sizeof(struct iphdr) <= skb->tail)
- return IP_ECN_set_ce(skb->nh.iph);
+ if (skb->network_header + sizeof(struct iphdr) <= skb->tail)
+ return IP_ECN_set_ce(ip_hdr(skb));
break;
case __constant_htons(ETH_P_IPV6):
- if (skb->nh.raw + sizeof(struct ipv6hdr) <= skb->tail)
- return IP6_ECN_set_ce(skb->nh.ipv6h);
+ if (skb->network_header + sizeof(struct ipv6hdr) <= skb->tail)
+ return IP6_ECN_set_ce(ipv6_hdr(skb));
break;
}
#include <linux/string.h>
#include <linux/types.h>
+#include <linux/jhash.h>
#include <net/flow.h>
#include <net/sock.h>
extern int inet_sk_rebuild_header(struct sock *sk);
+extern u32 inet_ehash_secret;
+extern void build_ehash_secret(void);
+
static inline unsigned int inet_ehashfn(const __be32 laddr, const __u16 lport,
const __be32 faddr, const __be16 fport)
{
- unsigned int h = ((__force __u32)laddr ^ lport) ^ ((__force __u32)faddr ^ (__force __u32)fport);
- h ^= h >> 16;
- h ^= h >> 8;
- return h;
+ return jhash_2words((__force __u32) laddr ^ (__force __u32) faddr,
+ ((__u32) lport) << 16 | (__force __u32)fport,
+ inet_ehash_secret);
}
static inline int inet_sk_ehashfn(const struct sock *sk)
#include <linux/types.h>
#include <linux/ip.h>
#include <linux/in.h>
+#include <linux/skbuff.h>
#include <net/inet_sock.h>
#include <net/snmp.h>
#define IPSKB_REROUTED 16
};
+static inline unsigned int ip_hdrlen(const struct sk_buff *skb)
+{
+ return ip_hdr(skb)->ihl * 4;
+}
+
struct ipcm_cookie
{
__be32 addr;
struct net_device;
struct packet_type;
struct rtable;
-struct sk_buff;
struct sockaddr;
extern void ip_mc_dropsocket(struct sock *);
#define NET_ADD_STATS_BH(field, adnd) SNMP_ADD_STATS_BH(net_statistics, field, adnd)
#define NET_ADD_STATS_USER(field, adnd) SNMP_ADD_STATS_USER(net_statistics, field, adnd)
+extern unsigned long snmp_fold_field(void *mib[], int offt);
+extern int snmp_mib_init(void *ptr[2], size_t mibsize, size_t mibalign);
+extern void snmp_mib_free(void *ptr[2]);
+
extern int sysctl_local_port_range[2];
extern int sysctl_ip_default_ttl;
extern int sysctl_ip_nonlocal_bind;
extern void fib6_rules_init(void);
extern void fib6_rules_cleanup(void);
-extern int fib6_rules_dump(struct sk_buff *,
- struct netlink_callback *);
#endif
#endif
struct net_device *dev,
u32 pmtu);
-struct nlmsghdr;
struct netlink_callback;
-extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
-extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
struct rt6_rtnl_dump_arg
{
/* Exported by fib_frontend.c */
extern struct nla_policy rtm_ipv4_policy[];
extern void ip_fib_init(void);
-extern int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
-extern int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
extern int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
struct net_device *dev, __be32 *spec_dst, u32 *itag);
extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res);
extern struct fib_table *fib_hash_init(u32 id);
#ifdef CONFIG_IP_MULTIPLE_TABLES
-extern int fib4_rules_dump(struct sk_buff *skb, struct netlink_callback *cb);
-
extern void __init fib4_rules_init(void);
#ifdef CONFIG_NET_CLS_ROUTE
if (is_udplite) SNMP_INC_STATS_USER(udplite_stats_in6, field); \
else SNMP_INC_STATS_USER(udp_stats_in6, field); } while(0)
-int snmp6_register_dev(struct inet6_dev *idev);
-int snmp6_unregister_dev(struct inet6_dev *idev);
-int snmp6_alloc_dev(struct inet6_dev *idev);
-int snmp6_free_dev(struct inet6_dev *idev);
-int snmp6_mib_init(void *ptr[2], size_t mibsize, size_t mibalign);
-void snmp6_mib_free(void *ptr[2]);
-
struct ip6_ra_chain
{
struct ip6_ra_chain *next;
extern void udplite6_proc_exit(void);
extern int ipv6_misc_proc_init(void);
extern void ipv6_misc_proc_exit(void);
+extern int snmp6_register_dev(struct inet6_dev *idev);
+extern int snmp6_unregister_dev(struct inet6_dev *idev);
extern struct rt6_statistics rt6_stats;
+#else
+static inline int snmp6_register_dev(struct inet6_dev *idev)
+{
+ return 0;
+}
+
+static inline int snmp6_unregister_dev(struct inet6_dev *idev)
+{
+ return 0;
+}
#endif
#ifdef CONFIG_SYSCTL
static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb)
{
- return (struct ipxhdr *)skb->h.raw;
+ return (struct ipxhdr *)skb_transport_header(skb);
}
struct ipx_interface {
* Those may be called only within the kernel.
*/
-/* First : function strictly used inside the kernel */
-
-/* Handle /proc/net/wireless, called in net/code/dev.c */
-extern int dev_get_wireless_info(char * buffer, char **start, off_t offset,
- int length);
-
-/* Handle IOCTLs, called in net/core/dev.c */
-extern int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd);
-
-/* Handle RtNetlink requests, called in net/core/rtnetlink.c */
-extern int wireless_rtnetlink_set(struct net_device * dev,
- char * data,
- int len);
-extern int wireless_rtnetlink_get(struct net_device * dev,
- char * data,
- int len,
- char ** p_buf,
- int * p_len);
-
-/* Second : functions that may be called by driver modules */
+/* functions that may be called by driver modules */
/* Send a single event to user space */
extern void wireless_send_event(struct net_device * dev,
static inline struct llc_pdu_sn *llc_pdu_sn_hdr(struct sk_buff *skb)
{
- return (struct llc_pdu_sn *)skb->nh.raw;
+ return (struct llc_pdu_sn *)skb_network_header(skb);
}
/* Un-numbered PDU format (3 bytes in length) */
static inline struct llc_pdu_un *llc_pdu_un_hdr(struct sk_buff *skb)
{
- return (struct llc_pdu_un *)skb->nh.raw;
-}
-
-static inline void *llc_set_pdu_hdr(struct sk_buff *skb, void *ptr)
-{
- return skb->nh.raw = ptr;
+ return (struct llc_pdu_un *)skb_network_header(skb);
}
/**
u8 ssap, u8 dsap, u8 cr)
{
const int hlen = type == LLC_PDU_TYPE_U ? 3 : 4;
- struct llc_pdu_un *pdu = llc_set_pdu_hdr(skb, skb_push(skb, hlen));
+ struct llc_pdu_un *pdu;
+
+ skb_push(skb, hlen);
+ skb_reset_network_header(skb);
+ pdu = llc_pdu_un_hdr(skb);
pdu->dsap = dsap;
pdu->ssap = ssap;
pdu->ssap |= cr;
#include <linux/err.h>
#include <linux/sysctl.h>
+#include <net/rtnetlink.h>
#define NUD_IN_TIMER (NUD_INCOMPLETE|NUD_REACHABLE|NUD_DELAY|NUD_PROBE)
#define NUD_VALID (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE|NUD_PROBE|NUD_STALE|NUD_DELAY)
extern struct pneigh_entry *pneigh_lookup(struct neigh_table *tbl, const void *key, struct net_device *dev, int creat);
extern int pneigh_delete(struct neigh_table *tbl, const void *key, struct net_device *dev);
-struct netlink_callback;
-struct nlmsghdr;
-extern int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb);
-extern int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
-extern int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
extern void neigh_app_ns(struct neighbour *n);
-
-extern int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb);
-extern int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
-
extern void neigh_for_each(struct neigh_table *tbl, void (*cb)(struct neighbour *, void *), void *cookie);
extern void __neigh_for_each_release(struct neigh_table *tbl, int (*cb)(struct neighbour *));
extern void pneigh_for_each(struct neigh_table *tbl, void (*cb)(struct pneigh_entry *));
return test_bit(IPS_DYING_BIT, &ct->status);
}
+static inline int nf_ct_is_untracked(const struct sk_buff *skb)
+{
+ return (skb->nfct == &nf_conntrack_untracked.ct_general);
+}
+
extern unsigned int nf_conntrack_htable_size;
extern int nf_conntrack_checksum;
extern atomic_t nf_conntrack_count;
+++ /dev/null
-#ifndef _NF_CONNTRACK_COMPAT_H
-#define _NF_CONNTRACK_COMPAT_H
-
-#ifdef __KERNEL__
-
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/socket.h>
-
-#ifdef CONFIG_IP_NF_CONNTRACK_MARK
-static inline u_int32_t *nf_ct_get_mark(const struct sk_buff *skb,
- u_int32_t *ctinfo)
-{
- struct ip_conntrack *ct = ip_conntrack_get(skb, ctinfo);
-
- if (ct)
- return &ct->mark;
- else
- return NULL;
-}
-#endif /* CONFIG_IP_NF_CONNTRACK_MARK */
-
-#ifdef CONFIG_IP_NF_CONNTRACK_SECMARK
-static inline u_int32_t *nf_ct_get_secmark(const struct sk_buff *skb,
- u_int32_t *ctinfo)
-{
- struct ip_conntrack *ct = ip_conntrack_get(skb, ctinfo);
-
- if (ct)
- return &ct->secmark;
- else
- return NULL;
-}
-#endif /* CONFIG_IP_NF_CONNTRACK_SECMARK */
-
-#ifdef CONFIG_IP_NF_CT_ACCT
-static inline struct ip_conntrack_counter *
-nf_ct_get_counters(const struct sk_buff *skb)
-{
- enum ip_conntrack_info ctinfo;
- struct ip_conntrack *ct = ip_conntrack_get(skb, &ctinfo);
-
- if (ct)
- return ct->counters;
- else
- return NULL;
-}
-#endif /* CONFIG_IP_NF_CT_ACCT */
-
-static inline int nf_ct_is_untracked(const struct sk_buff *skb)
-{
- return (skb->nfct == &ip_conntrack_untracked.ct_general);
-}
-
-static inline void nf_ct_untrack(struct sk_buff *skb)
-{
- skb->nfct = &ip_conntrack_untracked.ct_general;
-}
-
-static inline int nf_ct_get_ctinfo(const struct sk_buff *skb,
- enum ip_conntrack_info *ctinfo)
-{
- struct ip_conntrack *ct = ip_conntrack_get(skb, ctinfo);
- return (ct != NULL);
-}
-
-static inline int nf_ct_l3proto_try_module_get(unsigned short l3proto)
-{
- need_conntrack();
- return l3proto == PF_INET ? 0 : -1;
-}
-
-static inline void nf_ct_l3proto_module_put(unsigned short l3proto)
-{
-}
-
-#else /* CONFIG_IP_NF_CONNTRACK */
-
-#include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
-#include <net/netfilter/nf_conntrack.h>
-
-#ifdef CONFIG_NF_CONNTRACK_MARK
-
-static inline u_int32_t *nf_ct_get_mark(const struct sk_buff *skb,
- u_int32_t *ctinfo)
-{
- struct nf_conn *ct = nf_ct_get(skb, ctinfo);
-
- if (ct)
- return &ct->mark;
- else
- return NULL;
-}
-#endif /* CONFIG_NF_CONNTRACK_MARK */
-
-#ifdef CONFIG_NF_CONNTRACK_SECMARK
-static inline u_int32_t *nf_ct_get_secmark(const struct sk_buff *skb,
- u_int32_t *ctinfo)
-{
- struct nf_conn *ct = nf_ct_get(skb, ctinfo);
-
- if (ct)
- return &ct->secmark;
- else
- return NULL;
-}
-#endif /* CONFIG_NF_CONNTRACK_MARK */
-
-#ifdef CONFIG_NF_CT_ACCT
-static inline struct ip_conntrack_counter *
-nf_ct_get_counters(const struct sk_buff *skb)
-{
- enum ip_conntrack_info ctinfo;
- struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
-
- if (ct)
- return ct->counters;
- else
- return NULL;
-}
-#endif /* CONFIG_NF_CT_ACCT */
-
-static inline int nf_ct_is_untracked(const struct sk_buff *skb)
-{
- return (skb->nfct == &nf_conntrack_untracked.ct_general);
-}
-
-static inline void nf_ct_untrack(struct sk_buff *skb)
-{
- skb->nfct = &nf_conntrack_untracked.ct_general;
-}
-
-static inline int nf_ct_get_ctinfo(const struct sk_buff *skb,
- enum ip_conntrack_info *ctinfo)
-{
- struct nf_conn *ct = nf_ct_get(skb, ctinfo);
- return (ct != NULL);
-}
-
-#endif /* CONFIG_IP_NF_CONNTRACK */
-
-#endif /* __KERNEL__ */
-
-#endif /* _NF_CONNTRACK_COMPAT_H */
extern int nf_conntrack_init(void);
extern void nf_conntrack_cleanup(void);
+extern int nf_conntrack_proto_init(void);
+extern void nf_conntrack_proto_fini(void);
+
struct nf_conntrack_l3proto;
extern struct nf_conntrack_l3proto *nf_ct_find_l3proto(u_int16_t pf);
/* Like above, but you already have conntrack read lock. */
#define CONNTRACK_ECACHE(x) (__get_cpu_var(nf_conntrack_ecache).x)
extern struct atomic_notifier_head nf_conntrack_chain;
-extern struct atomic_notifier_head nf_conntrack_expect_chain;
-
-static inline int nf_conntrack_register_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_register(&nf_conntrack_chain, nb);
-}
-
-static inline int nf_conntrack_unregister_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&nf_conntrack_chain, nb);
-}
-
-static inline int
-nf_conntrack_expect_register_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_register(&nf_conntrack_expect_chain, nb);
-}
-
-static inline int
-nf_conntrack_expect_unregister_notifier(struct notifier_block *nb)
-{
- return atomic_notifier_chain_unregister(&nf_conntrack_expect_chain,
- nb);
-}
+extern int nf_conntrack_register_notifier(struct notifier_block *nb);
+extern int nf_conntrack_unregister_notifier(struct notifier_block *nb);
extern void nf_ct_deliver_cached_events(const struct nf_conn *ct);
extern void __nf_ct_event_cache_init(struct nf_conn *ct);
atomic_notifier_call_chain(&nf_conntrack_chain, event, ct);
}
+extern struct atomic_notifier_head nf_conntrack_expect_chain;
+extern int nf_conntrack_expect_register_notifier(struct notifier_block *nb);
+extern int nf_conntrack_expect_unregister_notifier(struct notifier_block *nb);
+
static inline void
nf_conntrack_expect_event(enum ip_conntrack_expect_events event,
struct nf_conntrack_expect *exp)
/* Protocol registration. */
extern int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto);
extern void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto);
-
-extern struct nf_conntrack_l3proto *
-nf_ct_l3proto_find_get(u_int16_t l3proto);
-
+extern struct nf_conntrack_l3proto *nf_ct_l3proto_find_get(u_int16_t l3proto);
extern void nf_ct_l3proto_put(struct nf_conntrack_l3proto *p);
/* Existing built-in protocols */
extern struct nf_conntrack_l4proto nf_conntrack_l4proto_generic;
#define MAX_NF_CT_PROTO 256
-extern struct nf_conntrack_l4proto **nf_ct_protos[PF_MAX];
extern struct nf_conntrack_l4proto *
__nf_ct_l4proto_find(u_int16_t l3proto, u_int8_t l4proto);
#include <net/netfilter/nf_nat.h>
#include <linux/netfilter_ipv4/ip_tables.h>
-/* Compatibility definitions for ipt_FOO modules */
-#define ip_nat_range nf_nat_range
-#define ip_conntrack_tuple nf_conntrack_tuple
-#define ip_conntrack_get nf_ct_get
-#define ip_conntrack nf_conn
-#define ip_nat_setup_info nf_nat_setup_info
-#define ip_nat_multi_range_compat nf_nat_multi_range_compat
-#define ip_ct_iterate_cleanup nf_ct_iterate_cleanup
-#define IP_NF_ASSERT NF_CT_ASSERT
-
extern int nf_nat_rule_init(void) __init;
extern void nf_nat_rule_cleanup(void);
extern int nf_nat_rule_find(struct sk_buff **pskb,
NLA_MSECS,
NLA_NESTED,
NLA_NUL_STRING,
+ NLA_BINARY,
__NLA_TYPE_MAX,
};
* NLA_STRING Maximum length of string
* NLA_NUL_STRING Maximum length of string (excluding NUL)
* NLA_FLAG Unused
+ * NLA_BINARY Maximum length of attribute payload
* All other Exact length of attribute payload
*
* Example:
* static struct nla_policy my_policy[ATTR_MAX+1] __read_mostly = {
* [ATTR_FOO] = { .type = NLA_U16 },
- * [ATTR_BAR] = { .type = NLA_STRING, len = BARSIZ },
+ * [ATTR_BAR] = { .type = NLA_STRING, .len = BARSIZ },
* [ATTR_BAZ] = { .len = sizeof(struct mystruct) },
* };
*/
extern void netlink_run_queue(struct sock *sk, unsigned int *qlen,
int (*cb)(struct sk_buff *,
- struct nlmsghdr *, int *));
-extern void netlink_queue_skip(struct nlmsghdr *nlh,
- struct sk_buff *skb);
+ struct nlmsghdr *));
extern int nlmsg_notify(struct sock *sk, struct sk_buff *skb,
u32 pid, unsigned int group, int report,
gfp_t flags);
*/
static inline int nlmsg_end(struct sk_buff *skb, struct nlmsghdr *nlh)
{
- nlh->nlmsg_len = skb->tail - (unsigned char *) nlh;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - (unsigned char *)nlh;
return skb->len;
}
*/
static inline void *nlmsg_get_pos(struct sk_buff *skb)
{
- return skb->tail;
+ return skb_tail_pointer(skb);
}
/**
*
* Trims the message to the provided mark. Returns -1.
*/
-static inline int nlmsg_trim(struct sk_buff *skb, void *mark)
+static inline int nlmsg_trim(struct sk_buff *skb, const void *mark)
{
if (mark)
skb_trim(skb, (unsigned char *) mark - skb->data);
*/
static inline struct nlattr *nla_nest_start(struct sk_buff *skb, int attrtype)
{
- struct nlattr *start = (struct nlattr *) skb->tail;
+ struct nlattr *start = (struct nlattr *)skb_tail_pointer(skb);
if (nla_put(skb, attrtype, 0, NULL) < 0)
return NULL;
*/
static inline int nla_nest_end(struct sk_buff *skb, struct nlattr *start)
{
- start->nla_len = skb->tail - (unsigned char *) start;
+ start->nla_len = skb_tail_pointer(skb) - (unsigned char *)start;
return skb->len;
}
case TCF_LAYER_LINK:
return skb->data;
case TCF_LAYER_NETWORK:
- return skb->nh.raw;
+ return skb_network_header(skb);
case TCF_LAYER_TRANSPORT:
- return skb->h.raw;
+ return skb_transport_header(skb);
}
return NULL;
}
-static inline int tcf_valid_offset(struct sk_buff *skb, unsigned char *ptr,
- int len)
+static inline int tcf_valid_offset(const struct sk_buff *skb,
+ const unsigned char *ptr, const int len)
{
- return unlikely((ptr + len) < skb->tail && ptr > skb->head);
+ return unlikely((ptr + len) < skb_tail_pointer(skb) && ptr > skb->head);
}
#ifdef CONFIG_NET_CLS_IND
#define __NET_PKT_SCHED_H
#include <linux/jiffies.h>
+#include <linux/ktime.h>
#include <net/sch_generic.h>
struct qdisc_walker
int (*fn)(struct Qdisc *, unsigned long cl, struct qdisc_walker *);
};
-extern rwlock_t qdisc_tree_lock;
-
#define QDISC_ALIGNTO 32
#define QDISC_ALIGN(len) (((len) + QDISC_ALIGNTO-1) & ~(QDISC_ALIGNTO-1))
The things are not so bad, because we may use artifical
clock evaluated by integration of network data flow
in the most critical places.
-
- Note: we do not use fastgettimeofday.
- The reason is that, when it is not the same thing as
- gettimeofday, it returns invalid timestamp, which is
- not updated, when net_bh is active.
- */
-
-/* General note about internal clock.
-
- Any clock source returns time intervals, measured in units
- close to 1usec. With source CONFIG_NET_SCH_CLK_GETTIMEOFDAY it is precisely
- microseconds, otherwise something close but different chosen to minimize
- arithmetic cost. Ratio usec/internal untis in form nominator/denominator
- may be read from /proc/net/psched.
*/
-
-#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
-
-typedef struct timeval psched_time_t;
-typedef long psched_tdiff_t;
-
-#define PSCHED_GET_TIME(stamp) do_gettimeofday(&(stamp))
-#define PSCHED_US2JIFFIE(usecs) usecs_to_jiffies(usecs)
-#define PSCHED_JIFFIE2US(delay) jiffies_to_usecs(delay)
-
-#else /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
-
typedef u64 psched_time_t;
typedef long psched_tdiff_t;
-#ifdef CONFIG_NET_SCH_CLK_JIFFIES
-
-#if HZ < 96
-#define PSCHED_JSCALE 14
-#elif HZ >= 96 && HZ < 192
-#define PSCHED_JSCALE 13
-#elif HZ >= 192 && HZ < 384
-#define PSCHED_JSCALE 12
-#elif HZ >= 384 && HZ < 768
-#define PSCHED_JSCALE 11
-#elif HZ >= 768
-#define PSCHED_JSCALE 10
-#endif
+/* Avoid doing 64 bit divide by 1000 */
+#define PSCHED_US2NS(x) ((s64)(x) << 10)
+#define PSCHED_NS2US(x) ((x) >> 10)
-#define PSCHED_GET_TIME(stamp) ((stamp) = (get_jiffies_64()<<PSCHED_JSCALE))
-#define PSCHED_US2JIFFIE(delay) (((delay)+(1<<PSCHED_JSCALE)-1)>>PSCHED_JSCALE)
-#define PSCHED_JIFFIE2US(delay) ((delay)<<PSCHED_JSCALE)
-
-#endif /* CONFIG_NET_SCH_CLK_JIFFIES */
-#ifdef CONFIG_NET_SCH_CLK_CPU
-#include <asm/timex.h>
-
-extern psched_tdiff_t psched_clock_per_hz;
-extern int psched_clock_scale;
-extern psched_time_t psched_time_base;
-extern cycles_t psched_time_mark;
-
-#define PSCHED_GET_TIME(stamp) \
-do { \
- cycles_t cur = get_cycles(); \
- if (sizeof(cycles_t) == sizeof(u32)) { \
- if (cur <= psched_time_mark) \
- psched_time_base += 0x100000000ULL; \
- psched_time_mark = cur; \
- (stamp) = (psched_time_base + cur)>>psched_clock_scale; \
- } else { \
- (stamp) = cur>>psched_clock_scale; \
- } \
-} while (0)
-#define PSCHED_US2JIFFIE(delay) (((delay)+psched_clock_per_hz-1)/psched_clock_per_hz)
-#define PSCHED_JIFFIE2US(delay) ((delay)*psched_clock_per_hz)
-
-#endif /* CONFIG_NET_SCH_CLK_CPU */
-
-#endif /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
-
-#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
-#define PSCHED_TDIFF(tv1, tv2) \
-({ \
- int __delta_sec = (tv1).tv_sec - (tv2).tv_sec; \
- int __delta = (tv1).tv_usec - (tv2).tv_usec; \
- if (__delta_sec) { \
- switch (__delta_sec) { \
- default: \
- __delta = 0; \
- case 2: \
- __delta += USEC_PER_SEC; \
- case 1: \
- __delta += USEC_PER_SEC; \
- } \
- } \
- __delta; \
-})
-
-static inline int
-psched_tod_diff(int delta_sec, int bound)
+#define PSCHED_TICKS_PER_SEC PSCHED_NS2US(NSEC_PER_SEC)
+#define PSCHED_PASTPERFECT 0
+
+static inline psched_time_t psched_get_time(void)
{
- int delta;
-
- if (bound <= USEC_PER_SEC || delta_sec > (0x7FFFFFFF/USEC_PER_SEC)-1)
- return bound;
- delta = delta_sec * USEC_PER_SEC;
- if (delta > bound || delta < 0)
- delta = bound;
- return delta;
+ return PSCHED_NS2US(ktime_to_ns(ktime_get()));
}
-#define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
-({ \
- int __delta_sec = (tv1).tv_sec - (tv2).tv_sec; \
- int __delta = (tv1).tv_usec - (tv2).tv_usec; \
- switch (__delta_sec) { \
- default: \
- __delta = psched_tod_diff(__delta_sec, bound); break; \
- case 2: \
- __delta += USEC_PER_SEC; \
- case 1: \
- __delta += USEC_PER_SEC; \
- case 0: \
- if (__delta > bound || __delta < 0) \
- __delta = bound; \
- } \
- __delta; \
-})
-
-#define PSCHED_TLESS(tv1, tv2) (((tv1).tv_usec < (tv2).tv_usec && \
- (tv1).tv_sec <= (tv2).tv_sec) || \
- (tv1).tv_sec < (tv2).tv_sec)
-
-#define PSCHED_TADD2(tv, delta, tv_res) \
-({ \
- int __delta = (tv).tv_usec + (delta); \
- (tv_res).tv_sec = (tv).tv_sec; \
- while (__delta >= USEC_PER_SEC) { (tv_res).tv_sec++; __delta -= USEC_PER_SEC; } \
- (tv_res).tv_usec = __delta; \
-})
-
-#define PSCHED_TADD(tv, delta) \
-({ \
- (tv).tv_usec += (delta); \
- while ((tv).tv_usec >= USEC_PER_SEC) { (tv).tv_sec++; \
- (tv).tv_usec -= USEC_PER_SEC; } \
-})
-
-/* Set/check that time is in the "past perfect";
- it depends on concrete representation of system time
- */
-
-#define PSCHED_SET_PASTPERFECT(t) ((t).tv_sec = 0)
-#define PSCHED_IS_PASTPERFECT(t) ((t).tv_sec == 0)
-
-#define PSCHED_AUDIT_TDIFF(t) ({ if ((t) > 2000000) (t) = 2000000; })
-
-#else /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
-
-#define PSCHED_TDIFF(tv1, tv2) (long)((tv1) - (tv2))
-#define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
- min_t(long long, (tv1) - (tv2), bound)
-
+static inline psched_tdiff_t
+psched_tdiff_bounded(psched_time_t tv1, psched_time_t tv2, psched_time_t bound)
+{
+ return min(tv1 - tv2, bound);
+}
-#define PSCHED_TLESS(tv1, tv2) ((tv1) < (tv2))
-#define PSCHED_TADD2(tv, delta, tv_res) ((tv_res) = (tv) + (delta))
-#define PSCHED_TADD(tv, delta) ((tv) += (delta))
-#define PSCHED_SET_PASTPERFECT(t) ((t) = 0)
-#define PSCHED_IS_PASTPERFECT(t) ((t) == 0)
-#define PSCHED_AUDIT_TDIFF(t)
+struct qdisc_watchdog {
+ struct hrtimer timer;
+ struct Qdisc *qdisc;
+};
-#endif /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
+extern void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc);
+extern void qdisc_watchdog_schedule(struct qdisc_watchdog *wd,
+ psched_time_t expires);
+extern void qdisc_watchdog_cancel(struct qdisc_watchdog *wd);
extern struct Qdisc_ops pfifo_qdisc_ops;
extern struct Qdisc_ops bfifo_qdisc_ops;
static inline int red_is_idling(struct red_parms *p)
{
- return !PSCHED_IS_PASTPERFECT(p->qidlestart);
+ return p->qidlestart != PSCHED_PASTPERFECT;
}
static inline void red_start_of_idle_period(struct red_parms *p)
{
- PSCHED_GET_TIME(p->qidlestart);
+ p->qidlestart = psched_get_time();
}
static inline void red_end_of_idle_period(struct red_parms *p)
{
- PSCHED_SET_PASTPERFECT(p->qidlestart);
+ p->qidlestart = PSCHED_PASTPERFECT;
}
static inline void red_restart(struct red_parms *p)
long us_idle;
int shift;
- PSCHED_GET_TIME(now);
- us_idle = PSCHED_TDIFF_SAFE(now, p->qidlestart, p->Scell_max);
+ now = psched_get_time();
+ us_idle = psched_tdiff_bounded(now, p->qidlestart, p->Scell_max);
/*
* The problem: ideally, average length queue recalcultion should
--- /dev/null
+#ifndef __NET_RTNETLINK_H
+#define __NET_RTNETLINK_H
+
+#include <linux/rtnetlink.h>
+#include <net/netlink.h>
+
+typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *, void *);
+typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
+
+extern int __rtnl_register(int protocol, int msgtype,
+ rtnl_doit_func, rtnl_dumpit_func);
+extern void rtnl_register(int protocol, int msgtype,
+ rtnl_doit_func, rtnl_dumpit_func);
+extern int rtnl_unregister(int protocol, int msgtype);
+extern void rtnl_unregister_all(int protocol);
+
+static inline int rtnl_msg_family(struct nlmsghdr *nlh)
+{
+ if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
+ return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;
+ else
+ return AF_UNSPEC;
+}
+
+#endif
#include <linux/types.h>
#include <linux/rcupdate.h>
#include <linux/module.h>
-#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <linux/pkt_cls.h>
#include <net/gen_stats.h>
+#include <net/rtnetlink.h>
struct Qdisc_ops;
struct qdisc_walker;
extern struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops);
extern struct Qdisc *qdisc_create_dflt(struct net_device *dev,
struct Qdisc_ops *ops, u32 parentid);
-
-static inline void
-tcf_destroy(struct tcf_proto *tp)
-{
- tp->ops->destroy(tp);
- module_put(tp->ops->owner);
- kfree(tp);
-}
+extern void tcf_destroy(struct tcf_proto *tp);
+extern void tcf_destroy_chain(struct tcf_proto *fl);
static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
struct sk_buff_head *list)
#define SCTP_RTO_BETA 2 /* 1/4 when converted to right shifts. */
/* Maximum number of new data packets that can be sent in a burst. */
-#define SCTP_MAX_BURST 4
+#define SCTP_DEFAULT_MAX_BURST 4
#define SCTP_CLOCK_GRANULARITY 1 /* 1 jiffy */
__u32 default_context;
__u32 default_timetolive;
__u32 default_rcv_context;
+ int max_burst;
/* Heartbeat interval: The endpoint sends out a Heartbeat chunk to
* the destination address every heartbeat interval. This value
__u32 autoclose;
__u8 nodelay;
__u8 disable_fragments;
- __u8 pd_mode;
__u8 v4mapped;
+ __u8 frag_interleave;
__u32 adaptation_ind;
+ __u32 pd_point;
+ atomic_t pd_mode;
/* Receive to here while partial delivery is in effect. */
struct sk_buff_head pd_lobby;
};
__u16 error,
__u16 outbound,
__u16 inbound,
+ struct sctp_chunk *chunk,
gfp_t gfp);
struct sctp_ulpevent *sctp_ulpevent_make_peer_addr_change(
void sctp_ulpq_abort_pd(struct sctp_ulpq *, gfp_t);
/* Clear the partial data delivery condition on this socket. */
-int sctp_clear_pd(struct sock *sk);
+int sctp_clear_pd(struct sock *sk, struct sctp_association *asoc);
/* Skip over an SSN. */
void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn);
#define SCTP_DELAYED_ACK_TIME SCTP_DELAYED_ACK_TIME
SCTP_CONTEXT, /* Receive Context */
#define SCTP_CONTEXT SCTP_CONTEXT
+ SCTP_FRAGMENT_INTERLEAVE,
+#define SCTP_FRAGMENT_INTERLEAVE SCTP_FRAGMENT_INTERLEAVE
+ SCTP_PARTIAL_DELIVERY_POINT, /* Set/Get partial delivery point */
+#define SCTP_PARTIAL_DELIVERY_POINT SCTP_PARTIAL_DELIVERY_POINT
+ SCTP_MAX_BURST, /* Set/Get max burst */
+#define SCTP_MAX_BURST SCTP_MAX_BURST
/* Internal Socket Options. Some of the sctp library functions are
* implemented using these socket options.
__u16 sac_outbound_streams;
__u16 sac_inbound_streams;
sctp_assoc_t sac_assoc_id;
+ __u8 sac_info[0];
};
/*
SCTP_ADDR_REMOVED,
SCTP_ADDR_ADDED,
SCTP_ADDR_MADE_PRIM,
+ SCTP_ADDR_CONFIRMED,
};
* address's parameters:
*/
enum sctp_spp_flags {
- SPP_HB_ENABLE = 1, /*Enable heartbeats*/
- SPP_HB_DISABLE = 2, /*Disable heartbeats*/
+ SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/
+ SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/
SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE,
- SPP_HB_DEMAND = 4, /*Send heartbeat immediately*/
- SPP_PMTUD_ENABLE = 8, /*Enable PMTU discovery*/
- SPP_PMTUD_DISABLE = 16, /*Disable PMTU discovery*/
+ SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/
+ SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/
+ SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/
SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE,
- SPP_SACKDELAY_ENABLE = 32, /*Enable SACK*/
- SPP_SACKDELAY_DISABLE = 64, /*Disable SACK*/
+ SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/
+ SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/
SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE,
+ SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */
};
struct sctp_paddrparams {
__u32 spp_flags;
} __attribute__((packed, aligned(4)));
-/* 7.1.24. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
+/* 7.1.23. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
*
* This options will get or set the delayed ack timer. The time is set
* in milliseconds. If the assoc_id is 0, then this sets or gets the
unsigned short sk_type;
int sk_rcvbuf;
socket_lock_t sk_lock;
+ /*
+ * The backlog queue is special, it is always used with
+ * the per-socket spinlock held and requires low latency
+ * access. Therefore we special case it's implementation.
+ */
+ struct {
+ struct sk_buff *head;
+ struct sk_buff *tail;
+ } sk_backlog;
wait_queue_head_t *sk_sleep;
struct dst_entry *sk_dst_cache;
struct xfrm_policy *sk_policy[2];
int sk_rcvlowat;
unsigned long sk_flags;
unsigned long sk_lingertime;
- /*
- * The backlog queue is special, it is always used with
- * the per-socket spinlock held and requires low latency
- * access. Therefore we special case it's implementation.
- */
- struct {
- struct sk_buff *head;
- struct sk_buff *tail;
- } sk_backlog;
struct sk_buff_head sk_error_queue;
struct proto *sk_prot_creator;
rwlock_t sk_callback_lock;
struct sk_filter *sk_filter;
void *sk_protinfo;
struct timer_list sk_timer;
- struct timeval sk_stamp;
+ ktime_t sk_stamp;
struct socket *sk_socket;
void *sk_user_data;
struct page *sk_sndmsg_page;
SOCK_USE_WRITE_QUEUE, /* whether to call sk->sk_write_space in sock_wfree */
SOCK_DBG, /* %SO_DEBUG setting */
SOCK_RCVTSTAMP, /* %SO_TIMESTAMP setting */
+ SOCK_RCVTSTAMPNS, /* %SO_TIMESTAMPNS setting */
SOCK_LOCALROUTE, /* route locally only, %SO_DONTROUTE setting */
SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */
};
__sk_stream_mem_reclaim(sk);
}
-static inline void sk_stream_writequeue_purge(struct sock *sk)
-{
- struct sk_buff *skb;
-
- while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL)
- sk_stream_free_skb(sk, skb);
- sk_stream_mem_reclaim(sk);
-}
-
static inline int sk_stream_rmem_schedule(struct sock *sk, struct sk_buff *skb)
{
return (int)skb->truesize <= sk->sk_forward_alloc ||
return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type);
}
-static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
-{
- __sk_dst_set(sk, dst);
- sk->sk_route_caps = dst->dev->features;
- if (sk->sk_route_caps & NETIF_F_GSO)
- sk->sk_route_caps |= NETIF_F_GSO_MASK;
- if (sk_can_gso(sk)) {
- if (dst->header_len)
- sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
- else
- sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
- }
-}
+extern void sk_setup_caps(struct sock *sk, struct dst_entry *dst);
static inline void sk_charge_skb(struct sock *sk, struct sk_buff *skb)
{
return page;
}
-#define sk_stream_for_retrans_queue(skb, sk) \
- for (skb = (sk)->sk_write_queue.next; \
- (skb != (sk)->sk_send_head) && \
- (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
- skb = skb->next)
-
-/*from STCP for fast SACK Process*/
-#define sk_stream_for_retrans_queue_from(skb, sk) \
- for (; (skb != (sk)->sk_send_head) && \
- (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
- skb = skb->next)
-
/*
* Default write policy as shown to user space via poll/select/SIGIO
*/
return timeo == MAX_SCHEDULE_TIMEOUT ? -ERESTARTSYS : -EINTR;
}
+extern void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb);
+
static __inline__ void
sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
{
- struct timeval stamp;
+ ktime_t kt = skb->tstamp;
- skb_get_timestamp(skb, &stamp);
- if (sock_flag(sk, SOCK_RCVTSTAMP)) {
- /* Race occurred between timestamp enabling and packet
- receiving. Fill in the current time for now. */
- if (stamp.tv_sec == 0)
- do_gettimeofday(&stamp);
- skb_set_timestamp(skb, &stamp);
- put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP, sizeof(struct timeval),
- &stamp);
- } else
- sk->sk_stamp = stamp;
+ if (sock_flag(sk, SOCK_RCVTSTAMP))
+ __sock_recv_timestamp(msg, sk, skb);
+ else
+ sk->sk_stamp = kt;
}
/**
extern void sock_enable_timestamp(struct sock *sk);
extern int sock_get_timestamp(struct sock *, struct timeval __user *);
+extern int sock_get_timestampns(struct sock *, struct timespec __user *);
/*
* Enable debug/info messages
*/
+extern int net_msg_warn;
+#define NETDEBUG(fmt, args...) \
+ do { if (net_msg_warn) printk(fmt,##args); } while (0)
-#ifdef CONFIG_NETDEBUG
-#define NETDEBUG(fmt, args...) printk(fmt,##args)
-#define LIMIT_NETDEBUG(fmt, args...) do { if (net_ratelimit()) printk(fmt,##args); } while(0)
-#else
-#define NETDEBUG(fmt, args...) do { } while (0)
-#define LIMIT_NETDEBUG(fmt, args...) do { } while(0)
-#endif
+#define LIMIT_NETDEBUG(fmt, args...) \
+ do { if (net_msg_warn && net_ratelimit()) printk(fmt,##args); } while(0)
/*
* Macros for sleeping on a socket. Use them like this:
extern int sysctl_tcp_adv_win_scale;
extern int sysctl_tcp_tw_reuse;
extern int sysctl_tcp_frto;
+extern int sysctl_tcp_frto_response;
extern int sysctl_tcp_low_latency;
extern int sysctl_tcp_dma_copybreak;
extern int sysctl_tcp_nometrics_save;
extern int sysctl_tcp_base_mss;
extern int sysctl_tcp_workaround_signed_windows;
extern int sysctl_tcp_slow_start_after_idle;
+extern int sysctl_tcp_max_ssthresh;
extern atomic_t tcp_memory_allocated;
extern atomic_t tcp_sockets_allocated;
extern int tcp_child_process(struct sock *parent,
struct sock *child,
struct sk_buff *skb);
+extern int tcp_use_frto(struct sock *sk);
extern void tcp_enter_frto(struct sock *sk);
extern void tcp_enter_loss(struct sock *sk, int how);
extern void tcp_clear_retrans(struct tcp_sock *tp);
/* tcp_output.c */
-extern void __tcp_push_pending_frames(struct sock *sk, struct tcp_sock *tp,
- unsigned int cur_mss, int nonagle);
-extern int tcp_may_send_now(struct sock *sk, struct tcp_sock *tp);
+extern void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
+ int nonagle);
+extern int tcp_may_send_now(struct sock *sk);
extern int tcp_retransmit_skb(struct sock *, struct sk_buff *);
extern void tcp_xmit_retransmit_queue(struct sock *);
extern void tcp_simple_retransmit(struct sock *);
__tcp_fast_path_on(tp, tp->snd_wnd >> tp->rx_opt.snd_wscale);
}
-static inline void tcp_fast_path_check(struct sock *sk, struct tcp_sock *tp)
+static inline void tcp_fast_path_check(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (skb_queue_empty(&tp->out_of_order_queue) &&
tp->rcv_wnd &&
atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf &&
}
}
-static inline void tcp_packets_out_inc(struct sock *sk,
- struct tcp_sock *tp,
+static inline void tcp_packets_out_inc(struct sock *sk,
const struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
int orig = tp->packets_out;
tp->packets_out += tcp_skb_pcount(skb);
#define TCP_CA_MAX 128
#define TCP_CA_BUF_MAX (TCP_CA_NAME_MAX*TCP_CA_MAX)
+#define TCP_CONG_NON_RESTRICTED 0x1
+#define TCP_CONG_RTT_STAMP 0x2
+
struct tcp_congestion_ops {
struct list_head list;
- int non_restricted;
+ unsigned long flags;
/* initialize private data (optional) */
void (*init)(struct sock *sk);
/* do new cwnd calculation (required) */
void (*cong_avoid)(struct sock *sk, u32 ack,
u32 rtt, u32 in_flight, int good_ack);
- /* round trip time sample per acked packet (optional) */
- void (*rtt_sample)(struct sock *sk, u32 usrtt);
/* call before changing ca_state (optional) */
void (*set_state)(struct sock *sk, u8 new_state);
/* call when cwnd event occurs (optional) */
/* new value of cwnd after loss (optional) */
u32 (*undo_cwnd)(struct sock *sk);
/* hook for packet ack accounting (optional) */
- void (*pkts_acked)(struct sock *sk, u32 num_acked);
+ void (*pkts_acked)(struct sock *sk, u32 num_acked, ktime_t last);
/* get info for inet_diag (optional) */
void (*get_info)(struct sock *sk, u32 ext, struct sk_buff *skb);
tp->left_out = tp->sacked_out + tp->lost_out;
}
-extern void tcp_enter_cwr(struct sock *sk);
+extern void tcp_enter_cwr(struct sock *sk, const int set_ssthresh);
extern __u32 tcp_init_cwnd(struct tcp_sock *tp, struct dst_entry *dst);
/* Slow start with delack produces 3 packets of burst, so that
tp->snd_sml = TCP_SKB_CB(skb)->end_seq;
}
-static inline void tcp_check_probe_timer(struct sock *sk, struct tcp_sock *tp)
+static inline void tcp_check_probe_timer(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
const struct inet_connection_sock *icsk = inet_csk(sk);
+
if (!tp->packets_out && !icsk->icsk_pending)
inet_csk_reset_xmit_timer(sk, ICSK_TIME_PROBE0,
icsk->icsk_rto, TCP_RTO_MAX);
}
-static inline void tcp_push_pending_frames(struct sock *sk,
- struct tcp_sock *tp)
+static inline void tcp_push_pending_frames(struct sock *sk)
{
- __tcp_push_pending_frames(sk, tp, tcp_current_mss(sk, 1), tp->nonagle);
+ struct tcp_sock *tp = tcp_sk(sk);
+
+ __tcp_push_pending_frames(sk, tcp_current_mss(sk, 1), tp->nonagle);
}
static inline void tcp_init_wl(struct tcp_sock *tp, u32 ack, u32 seq)
static inline int tcp_checksum_complete(struct sk_buff *skb)
{
- return skb->ip_summed != CHECKSUM_UNNECESSARY &&
+ return !skb_csum_unnecessary(skb) &&
__tcp_checksum_complete(skb);
}
#endif
}
-static inline void tcp_done(struct sock *sk)
-{
- if(sk->sk_state == TCP_SYN_SENT || sk->sk_state == TCP_SYN_RECV)
- TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
-
- tcp_set_state(sk, TCP_CLOSE);
- tcp_clear_xmit_timers(sk);
-
- sk->sk_shutdown = SHUTDOWN_MASK;
-
- if (!sock_flag(sk, SOCK_DEAD))
- sk->sk_state_change(sk);
- else
- inet_csk_destroy_sock(sk);
-}
+extern void tcp_done(struct sock *sk);
static inline void tcp_sack_reset(struct tcp_options_received *rx_opt)
{
ireq->wscale_ok = rx_opt->wscale_ok;
ireq->acked = 0;
ireq->ecn_ok = 0;
- ireq->rmt_port = skb->h.th->source;
+ ireq->rmt_port = tcp_hdr(skb)->source;
}
extern void tcp_enter_memory_pressure(void);
{
if ((s32)(rx_opt->rcv_tsval - rx_opt->ts_recent) >= 0)
return 0;
- if (xtime.tv_sec >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)
+ if (get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)
return 0;
/* RST segments are not recommended to carry timestamp,
However, we can relax time bounds for RST segments to MSL.
*/
- if (rst && xtime.tv_sec >= rx_opt->ts_recent_stamp + TCP_PAWS_MSL)
+ if (rst && get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_MSL)
return 0;
return 1;
}
#define TCP_CHECK_TIMER(sk) do { } while (0)
-static inline int tcp_use_frto(const struct sock *sk)
-{
- const struct tcp_sock *tp = tcp_sk(sk);
-
- /* F-RTO must be activated in sysctl and there must be some
- * unsent new data, and the advertised window should allow
- * sending it.
- */
- return (sysctl_tcp_frto && sk->sk_send_head &&
- !after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
- tp->snd_una + tp->snd_wnd));
-}
-
static inline void tcp_mib_init(void)
{
/* See RFC 2012 */
put_cpu();
}
+/* write queue abstraction */
+static inline void tcp_write_queue_purge(struct sock *sk)
+{
+ struct sk_buff *skb;
+
+ while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL)
+ sk_stream_free_skb(sk, skb);
+ sk_stream_mem_reclaim(sk);
+}
+
+static inline struct sk_buff *tcp_write_queue_head(struct sock *sk)
+{
+ struct sk_buff *skb = sk->sk_write_queue.next;
+ if (skb == (struct sk_buff *) &sk->sk_write_queue)
+ return NULL;
+ return skb;
+}
+
+static inline struct sk_buff *tcp_write_queue_tail(struct sock *sk)
+{
+ struct sk_buff *skb = sk->sk_write_queue.prev;
+ if (skb == (struct sk_buff *) &sk->sk_write_queue)
+ return NULL;
+ return skb;
+}
+
+static inline struct sk_buff *tcp_write_queue_next(struct sock *sk, struct sk_buff *skb)
+{
+ return skb->next;
+}
+
+#define tcp_for_write_queue(skb, sk) \
+ for (skb = (sk)->sk_write_queue.next; \
+ (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
+ skb = skb->next)
+
+#define tcp_for_write_queue_from(skb, sk) \
+ for (; (skb != (struct sk_buff *)&(sk)->sk_write_queue);\
+ skb = skb->next)
+
+static inline struct sk_buff *tcp_send_head(struct sock *sk)
+{
+ return sk->sk_send_head;
+}
+
+static inline void tcp_advance_send_head(struct sock *sk, struct sk_buff *skb)
+{
+ sk->sk_send_head = skb->next;
+ if (sk->sk_send_head == (struct sk_buff *)&sk->sk_write_queue)
+ sk->sk_send_head = NULL;
+}
+
+static inline void tcp_check_send_head(struct sock *sk, struct sk_buff *skb_unlinked)
+{
+ if (sk->sk_send_head == skb_unlinked)
+ sk->sk_send_head = NULL;
+}
+
+static inline void tcp_init_send_head(struct sock *sk)
+{
+ sk->sk_send_head = NULL;
+}
+
+static inline void __tcp_add_write_queue_tail(struct sock *sk, struct sk_buff *skb)
+{
+ __skb_queue_tail(&sk->sk_write_queue, skb);
+}
+
+static inline void tcp_add_write_queue_tail(struct sock *sk, struct sk_buff *skb)
+{
+ __tcp_add_write_queue_tail(sk, skb);
+
+ /* Queue it, remembering where we must start sending. */
+ if (sk->sk_send_head == NULL)
+ sk->sk_send_head = skb;
+}
+
+static inline void __tcp_add_write_queue_head(struct sock *sk, struct sk_buff *skb)
+{
+ __skb_queue_head(&sk->sk_write_queue, skb);
+}
+
+/* Insert buff after skb on the write queue of sk. */
+static inline void tcp_insert_write_queue_after(struct sk_buff *skb,
+ struct sk_buff *buff,
+ struct sock *sk)
+{
+ __skb_append(skb, buff, &sk->sk_write_queue);
+}
+
+/* Insert skb between prev and next on the write queue of sk. */
+static inline void tcp_insert_write_queue_before(struct sk_buff *new,
+ struct sk_buff *skb,
+ struct sock *sk)
+{
+ __skb_insert(new, skb->prev, skb, &sk->sk_write_queue);
+}
+
+static inline void tcp_unlink_write_queue(struct sk_buff *skb, struct sock *sk)
+{
+ __skb_unlink(skb, &sk->sk_write_queue);
+}
+
+static inline int tcp_skb_is_last(const struct sock *sk,
+ const struct sk_buff *skb)
+{
+ return skb->next == (struct sk_buff *)&sk->sk_write_queue;
+}
+
+static inline int tcp_write_queue_empty(struct sock *sk)
+{
+ return skb_queue_empty(&sk->sk_write_queue);
+}
+
/* /proc */
enum tcp_seq_states {
TCP_SEQ_STATE_LISTENING,
TCP_SKB_CB(skb)->flags &= ~TCPCB_FLAG_ECE;
}
-static inline void TCP_ECN_send_syn(struct sock *sk, struct tcp_sock *tp,
- struct sk_buff *skb)
+static inline void TCP_ECN_send_syn(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
tp->ecn_flags = 0;
if (sysctl_tcp_ecn) {
TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_ECE|TCPCB_FLAG_CWR;
th->ece = 1;
}
-static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp,
- struct sk_buff *skb, int tcp_header_len)
+static inline void TCP_ECN_send(struct sock *sk, struct sk_buff *skb,
+ int tcp_header_len)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (tp->ecn_flags & TCP_ECN_OK) {
/* Not-retransmitted data segment: set ECT and inject CWR. */
if (skb->len != tcp_header_len &&
INET_ECN_xmit(sk);
if (tp->ecn_flags&TCP_ECN_QUEUE_CWR) {
tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR;
- skb->h.th->cwr = 1;
+ tcp_hdr(skb)->cwr = 1;
skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
}
} else {
INET_ECN_dontxmit(sk);
}
if (tp->ecn_flags & TCP_ECN_DEMAND_CWR)
- skb->h.th->ece = 1;
+ tcp_hdr(skb)->ece = 1;
}
}
static inline void TCP_ECN_accept_cwr(struct tcp_sock *tp, struct sk_buff *skb)
{
- if (skb->h.th->cwr)
+ if (tcp_hdr(skb)->cwr)
tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
}
*/
static inline __sum16 __udp_lib_checksum_complete(struct sk_buff *skb)
{
- if (! UDP_SKB_CB(skb)->partial_cov)
- return __skb_checksum_complete(skb);
- return csum_fold(skb_checksum(skb, 0, UDP_SKB_CB(skb)->cscov,
- skb->csum));
+ return __skb_checksum_complete_head(skb, UDP_SKB_CB(skb)->cscov);
}
static inline int udp_lib_checksum_complete(struct sk_buff *skb)
{
- return skb->ip_summed != CHECKSUM_UNNECESSARY &&
+ return !skb_csum_unnecessary(skb) &&
__udp_lib_checksum_complete(skb);
}
*/
static inline __wsum udp_csum_outgoing(struct sock *sk, struct sk_buff *skb)
{
- __wsum csum = csum_partial(skb->h.raw, sizeof(struct udphdr), 0);
-
+ __wsum csum = csum_partial(skb_transport_header(skb),
+ sizeof(struct udphdr), 0);
skb_queue_walk(&sk->sk_write_queue, skb) {
csum = csum_add(csum, skb->csum);
}
return 1;
}
- UDP_SKB_CB(skb)->partial_cov = 0;
cscov = ntohs(uh->len);
if (cscov == 0) /* Indicates that full coverage is required. */
- cscov = skb->len;
+ ;
else if (cscov < 8 || cscov > skb->len) {
/*
* Coverage length violates RFC 3828: log and discard silently.
cscov, skb->len);
return 1;
- } else if (cscov < skb->len)
+ } else if (cscov < skb->len) {
UDP_SKB_CB(skb)->partial_cov = 1;
-
- UDP_SKB_CB(skb)->cscov = cscov;
-
- /*
- * There is no known NIC manufacturer supporting UDP-Lite yet,
- * hence ip_summed is always (re-)set to CHECKSUM_NONE.
- */
- skb->ip_summed = CHECKSUM_NONE;
+ UDP_SKB_CB(skb)->cscov = cscov;
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->ip_summed = CHECKSUM_NONE;
+ }
return 0;
}
-static __inline__ int udplite4_csum_init(struct sk_buff *skb, struct udphdr *uh)
-{
- int rc = udplite_checksum_init(skb, uh);
-
- if (!rc)
- skb->csum = csum_tcpudp_nofold(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- skb->len, IPPROTO_UDPLITE, 0);
- return rc;
-}
-
-static __inline__ int udplite6_csum_init(struct sk_buff *skb, struct udphdr *uh)
-{
- int rc = udplite_checksum_init(skb, uh);
-
- if (!rc)
- skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- skb->len, IPPROTO_UDPLITE, 0));
- return rc;
-}
-
static inline int udplite_sender_cscov(struct udp_sock *up, struct udphdr *uh)
{
int cscov = up->len;
static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
{
- int off, len, cscov = udplite_sender_cscov(udp_sk(sk), skb->h.uh);
+ int cscov = udplite_sender_cscov(udp_sk(sk), udp_hdr(skb));
__wsum csum = 0;
skb->ip_summed = CHECKSUM_NONE; /* no HW support for checksumming */
skb_queue_walk(&sk->sk_write_queue, skb) {
- off = skb->h.raw - skb->data;
- len = skb->len - off;
+ const int off = skb_transport_offset(skb);
+ const int len = skb->len - off;
csum = skb_checksum(skb, off, (cscov > len)? len : cscov, csum);
--- /dev/null
+#ifndef __NET_WEXT_H
+#define __NET_WEXT_H
+
+/*
+ * wireless extensions interface to the core code
+ */
+
+#ifdef CONFIG_WIRELESS_EXT
+extern int wext_proc_init(void);
+extern int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
+ void __user *arg);
+#else
+static inline int wext_proc_init()
+{
+ return 0;
+}
+static inline int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
+ void __user *arg)
+{
+ return -EINVAL;
+}
+#endif
+
+#endif /* __NET_WEXT_H */
--- /dev/null
+#ifndef __NET_WIRELESS_H
+#define __NET_WIRELESS_H
+
+/*
+ * 802.11 device management
+ *
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/netdevice.h>
+#include <linux/debugfs.h>
+#include <linux/list.h>
+#include <net/cfg80211.h>
+
+/**
+ * struct wiphy - wireless hardware description
+ * @idx: the wiphy index assigned to this item
+ * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
+ */
+struct wiphy {
+ /* assign these fields before you register the wiphy */
+
+ /* permanent MAC address */
+ u8 perm_addr[ETH_ALEN];
+
+ /* If multiple wiphys are registered and you're handed e.g.
+ * a regular netdev with assigned ieee80211_ptr, you won't
+ * know whether it points to a wiphy your driver has registered
+ * or not. Assign this to something global to your driver to
+ * help determine whether you own this wiphy or not. */
+ void *privid;
+
+ /* fields below are read-only, assigned by cfg80211 */
+
+ /* the item in /sys/class/ieee80211/ points to this,
+ * you need use set_wiphy_dev() (see below) */
+ struct device dev;
+
+ /* dir in debugfs: ieee80211/<wiphyname> */
+ struct dentry *debugfsdir;
+
+ char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+/** struct wireless_dev - wireless per-netdev state
+ *
+ * This structure must be allocated by the driver/stack
+ * that uses the ieee80211_ptr field in struct net_device
+ * (this is intentional so it can be allocated along with
+ * the netdev.)
+ *
+ * @wiphy: pointer to hardware description
+ */
+struct wireless_dev {
+ struct wiphy *wiphy;
+
+ /* private to the generic wireless code */
+ struct list_head list;
+ struct net_device *netdev;
+};
+
+/**
+ * wiphy_priv - return priv from wiphy
+ */
+static inline void *wiphy_priv(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return &wiphy->priv;
+}
+
+/**
+ * set_wiphy_dev - set device pointer for wiphy
+ */
+static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
+{
+ wiphy->dev.parent = dev;
+}
+
+/**
+ * wiphy_dev - get wiphy dev pointer
+ */
+static inline struct device *wiphy_dev(struct wiphy *wiphy)
+{
+ return wiphy->dev.parent;
+}
+
+/**
+ * wiphy_name - get wiphy name
+ */
+static inline char *wiphy_name(struct wiphy *wiphy)
+{
+ return wiphy->dev.bus_id;
+}
+
+/**
+ * wdev_priv - return wiphy priv from wireless_dev
+ */
+static inline void *wdev_priv(struct wireless_dev *wdev)
+{
+ BUG_ON(!wdev);
+ return wiphy_priv(wdev->wiphy);
+}
+
+/**
+ * wiphy_new - create a new wiphy for use with cfg80211
+ *
+ * create a new wiphy and associate the given operations with it.
+ * @sizeof_priv bytes are allocated for private use.
+ *
+ * the returned pointer must be assigned to each netdev's
+ * ieee80211_ptr for proper operation.
+ */
+struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv);
+
+/**
+ * wiphy_register - register a wiphy with cfg80211
+ *
+ * register the given wiphy
+ *
+ * Returns a non-negative wiphy index or a negative error code.
+ */
+extern int wiphy_register(struct wiphy *wiphy);
+
+/**
+ * wiphy_unregister - deregister a wiphy from cfg80211
+ *
+ * unregister a device with the given priv pointer.
+ * After this call, no more requests can be made with this priv
+ * pointer, but the call may sleep to wait for an outstanding
+ * request that is being handled.
+ */
+extern void wiphy_unregister(struct wiphy *wiphy);
+
+/**
+ * wiphy_free - free wiphy
+ */
+extern void wiphy_free(struct wiphy *wiphy);
+
+#endif /* __NET_WIRELESS_H */
static inline __be16 x25_type_trans(struct sk_buff *skb, struct net_device *dev)
{
- skb->mac.raw = skb->data;
skb->dev = dev;
+ skb_reset_mac_header(skb);
skb->pkt_type = PACKET_HOST;
return htons(ETH_P_X25);
xfrm_address_t *(*local_addr)(struct xfrm_state *, xfrm_address_t *);
xfrm_address_t *(*remote_addr)(struct xfrm_state *, xfrm_address_t *);
/* Estimate maximal size of result of transformation of a dgram */
- u32 (*get_max_size)(struct xfrm_state *, int size);
+ u32 (*get_mtu)(struct xfrm_state *, int size);
};
extern int xfrm_register_type(struct xfrm_type *type, unsigned short family);
u32 secid;
};
+/* SAD metadata, add more later */
+struct xfrm_sadinfo
+{
+ u32 sadhcnt; /* current hash bkts */
+ u32 sadhmcnt; /* max allowed hash bkts */
+ u32 sadcnt; /* current running count */
+};
#ifdef CONFIG_AUDITSYSCALL
extern void xfrm_audit_log(uid_t auid, u32 secid, int type, int result,
struct xfrm_policy *xp, struct xfrm_state *x);
extern struct xfrm_state *xfrm_find_acq_byseq(u32 seq);
extern int xfrm_state_delete(struct xfrm_state *x);
extern void xfrm_state_flush(u8 proto, struct xfrm_audit *audit_info);
+extern void xfrm_sad_getinfo(struct xfrm_sadinfo *si);
extern int xfrm_replay_check(struct xfrm_state *x, __be32 seq);
extern void xfrm_replay_advance(struct xfrm_state *x, __be32 seq);
extern void xfrm_replay_notify(struct xfrm_state *x, int event);
+++ /dev/null
-/* call.h: Rx call record
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_CALL_H
-#define _LINUX_RXRPC_CALL_H
-
-#include <rxrpc/types.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/packet.h>
-#include <linux/timer.h>
-
-#define RXRPC_CALL_ACK_WINDOW_SIZE 16
-
-extern unsigned rxrpc_call_rcv_timeout; /* receive activity timeout (secs) */
-
-/* application call state
- * - only state 0 and ffff are reserved, the state is set to 1 after an opid is received
- */
-enum rxrpc_app_cstate {
- RXRPC_CSTATE_COMPLETE = 0, /* operation complete */
- RXRPC_CSTATE_ERROR, /* operation ICMP error or aborted */
- RXRPC_CSTATE_SRVR_RCV_OPID, /* [SERVER] receiving operation ID */
- RXRPC_CSTATE_SRVR_RCV_ARGS, /* [SERVER] receiving operation data */
- RXRPC_CSTATE_SRVR_GOT_ARGS, /* [SERVER] completely received operation data */
- RXRPC_CSTATE_SRVR_SND_REPLY, /* [SERVER] sending operation reply */
- RXRPC_CSTATE_SRVR_RCV_FINAL_ACK, /* [SERVER] receiving final ACK */
- RXRPC_CSTATE_CLNT_SND_ARGS, /* [CLIENT] sending operation args */
- RXRPC_CSTATE_CLNT_RCV_REPLY, /* [CLIENT] receiving operation reply */
- RXRPC_CSTATE_CLNT_GOT_REPLY, /* [CLIENT] completely received operation reply */
-} __attribute__((packed));
-
-extern const char *rxrpc_call_states[];
-
-enum rxrpc_app_estate {
- RXRPC_ESTATE_NO_ERROR = 0, /* no error */
- RXRPC_ESTATE_LOCAL_ABORT, /* aborted locally by application layer */
- RXRPC_ESTATE_PEER_ABORT, /* aborted remotely by peer */
- RXRPC_ESTATE_LOCAL_ERROR, /* local ICMP network error */
- RXRPC_ESTATE_REMOTE_ERROR, /* remote ICMP network error */
-} __attribute__((packed));
-
-extern const char *rxrpc_call_error_states[];
-
-/*****************************************************************************/
-/*
- * Rx call record and application scratch buffer
- * - the call record occupies the bottom of a complete page
- * - the application scratch buffer occupies the rest
- */
-struct rxrpc_call
-{
- atomic_t usage;
- struct rxrpc_connection *conn; /* connection upon which active */
- spinlock_t lock; /* access lock */
- struct module *owner; /* owner module */
- wait_queue_head_t waitq; /* wait queue for events to happen */
- struct list_head link; /* general internal list link */
- struct list_head call_link; /* master call list link */
- __be32 chan_ix; /* connection channel index */
- __be32 call_id; /* call ID on connection */
- unsigned long cjif; /* jiffies at call creation */
- unsigned long flags; /* control flags */
-#define RXRPC_CALL_ACKS_TIMO 0x00000001 /* ACKS timeout reached */
-#define RXRPC_CALL_ACKR_TIMO 0x00000002 /* ACKR timeout reached */
-#define RXRPC_CALL_RCV_TIMO 0x00000004 /* RCV timeout reached */
-#define RXRPC_CALL_RCV_PKT 0x00000008 /* received packet */
-
- /* transmission */
- rxrpc_seq_t snd_seq_count; /* outgoing packet sequence number counter */
- struct rxrpc_message *snd_nextmsg; /* next message being constructed for sending */
- struct rxrpc_message *snd_ping; /* last ping message sent */
- unsigned short snd_resend_cnt; /* count of resends since last ACK */
-
- /* transmission ACK tracking */
- struct list_head acks_pendq; /* messages pending ACK (ordered by seq) */
- unsigned acks_pend_cnt; /* number of un-ACK'd packets */
- rxrpc_seq_t acks_dftv_seq; /* highest definitively ACK'd msg seq */
- struct timer_list acks_timeout; /* timeout on expected ACK */
-
- /* reception */
- struct list_head rcv_receiveq; /* messages pending reception (ordered by seq) */
- struct list_head rcv_krxiodq_lk; /* krxiod queue for new inbound packets */
- struct timer_list rcv_timeout; /* call receive activity timeout */
-
- /* reception ACK'ing */
- rxrpc_seq_t ackr_win_bot; /* bottom of ACK window */
- rxrpc_seq_t ackr_win_top; /* top of ACK window */
- rxrpc_seq_t ackr_high_seq; /* highest seqno yet received */
- rxrpc_seq_net_t ackr_prev_seq; /* previous seqno received */
- unsigned ackr_pend_cnt; /* number of pending ACKs */
- struct timer_list ackr_dfr_timo; /* timeout on deferred ACK */
- char ackr_dfr_perm; /* request for deferred ACKs permitted */
- rxrpc_seq_t ackr_dfr_seq; /* seqno for deferred ACK */
- struct rxrpc_ackpacket ackr; /* pending normal ACK packet */
- uint8_t ackr_array[RXRPC_CALL_ACK_WINDOW_SIZE]; /* ACK records */
-
- /* presentation layer */
- char app_last_rcv; /* T if received last packet from remote end */
- enum rxrpc_app_cstate app_call_state; /* call state */
- enum rxrpc_app_estate app_err_state; /* abort/error state */
- struct list_head app_readyq; /* ordered ready received packet queue */
- struct list_head app_unreadyq; /* ordered post-hole recv'd packet queue */
- rxrpc_seq_t app_ready_seq; /* last seq number dropped into readyq */
- size_t app_ready_qty; /* amount of data ready in readyq */
- unsigned app_opcode; /* operation ID */
- unsigned app_abort_code; /* abort code (when aborted) */
- int app_errno; /* error number (when ICMP error received) */
-
- /* statisics */
- unsigned pkt_rcv_count; /* count of received packets on this call */
- unsigned pkt_snd_count; /* count of sent packets on this call */
- unsigned app_read_count; /* number of reads issued */
-
- /* bits for the application to use */
- rxrpc_call_attn_func_t app_attn_func; /* callback when attention required */
- rxrpc_call_error_func_t app_error_func; /* callback when abort sent (cleanup and put) */
- rxrpc_call_aemap_func_t app_aemap_func; /* callback to map abort code to/from errno */
- void *app_user; /* application data */
- struct list_head app_link; /* application list linkage */
- struct list_head app_attn_link; /* application attention list linkage */
- size_t app_mark; /* trigger callback when app_ready_qty>=app_mark */
- char app_async_read; /* T if in async-read mode */
- uint8_t *app_read_buf; /* application async read buffer (app_mark size) */
- uint8_t *app_scr_alloc; /* application scratch allocation pointer */
- void *app_scr_ptr; /* application pointer into scratch buffer */
-
-#define RXRPC_APP_MARK_EOF 0xFFFFFFFFU /* mark at end of input */
-
- /* application scratch buffer */
- uint8_t app_scratch[0] __attribute__((aligned(sizeof(long))));
-};
-
-#define RXRPC_CALL_SCRATCH_SIZE (PAGE_SIZE - sizeof(struct rxrpc_call))
-
-#define rxrpc_call_reset_scratch(CALL) \
-do { (CALL)->app_scr_alloc = (CALL)->app_scratch; } while(0)
-
-#define rxrpc_call_alloc_scratch(CALL,SIZE) \
-({ \
- void *ptr; \
- ptr = (CALL)->app_scr_alloc; \
- (CALL)->app_scr_alloc += (SIZE); \
- if ((SIZE)>RXRPC_CALL_SCRATCH_SIZE || \
- (size_t)((CALL)->app_scr_alloc - (u8*)(CALL)) > RXRPC_CALL_SCRATCH_SIZE) { \
- printk("rxrpc_call_alloc_scratch(%p,%Zu)\n",(CALL),(size_t)(SIZE)); \
- BUG(); \
- } \
- ptr; \
-})
-
-#define rxrpc_call_alloc_scratch_s(CALL,TYPE) \
-({ \
- size_t size = sizeof(TYPE); \
- TYPE *ptr; \
- ptr = (TYPE*)(CALL)->app_scr_alloc; \
- (CALL)->app_scr_alloc += size; \
- if (size>RXRPC_CALL_SCRATCH_SIZE || \
- (size_t)((CALL)->app_scr_alloc - (u8*)(CALL)) > RXRPC_CALL_SCRATCH_SIZE) { \
- printk("rxrpc_call_alloc_scratch(%p,%Zu)\n",(CALL),size); \
- BUG(); \
- } \
- ptr; \
-})
-
-#define rxrpc_call_is_ack_pending(CALL) ((CALL)->ackr.reason != 0)
-
-extern int rxrpc_create_call(struct rxrpc_connection *conn,
- rxrpc_call_attn_func_t attn,
- rxrpc_call_error_func_t error,
- rxrpc_call_aemap_func_t aemap,
- struct rxrpc_call **_call);
-
-extern int rxrpc_incoming_call(struct rxrpc_connection *conn,
- struct rxrpc_message *msg,
- struct rxrpc_call **_call);
-
-static inline void rxrpc_get_call(struct rxrpc_call *call)
-{
- BUG_ON(atomic_read(&call->usage)<=0);
- atomic_inc(&call->usage);
- /*printk("rxrpc_get_call(%p{u=%d})\n",(C),atomic_read(&(C)->usage));*/
-}
-
-extern void rxrpc_put_call(struct rxrpc_call *call);
-
-extern void rxrpc_call_do_stuff(struct rxrpc_call *call);
-
-extern int rxrpc_call_abort(struct rxrpc_call *call, int error);
-
-#define RXRPC_CALL_READ_BLOCK 0x0001 /* block if not enough data and not yet EOF */
-#define RXRPC_CALL_READ_ALL 0x0002 /* error if insufficient data received */
-extern int rxrpc_call_read_data(struct rxrpc_call *call, void *buffer, size_t size, int flags);
-
-extern int rxrpc_call_write_data(struct rxrpc_call *call,
- size_t sioc,
- struct kvec *siov,
- uint8_t rxhdr_flags,
- gfp_t alloc_flags,
- int dup_data,
- size_t *size_sent);
-
-extern void rxrpc_call_handle_error(struct rxrpc_call *conn, int local, int errno);
-
-#endif /* _LINUX_RXRPC_CALL_H */
+++ /dev/null
-/* connection.h: Rx connection record
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_CONNECTION_H
-#define _LINUX_RXRPC_CONNECTION_H
-
-#include <rxrpc/types.h>
-#include <rxrpc/krxtimod.h>
-
-struct sk_buff;
-
-/*****************************************************************************/
-/*
- * Rx connection
- * - connections are matched by (rmt_port,rmt_addr,service_id,conn_id,clientflag)
- * - connections only retain a refcount on the peer when they are active
- * - connections with refcount==0 are inactive and reside in the peer's graveyard
- */
-struct rxrpc_connection
-{
- atomic_t usage;
- struct rxrpc_transport *trans; /* transport endpoint */
- struct rxrpc_peer *peer; /* peer from/to which connected */
- struct rxrpc_service *service; /* responsible service (inbound conns) */
- struct rxrpc_timer timeout; /* decaching timer */
- struct list_head link; /* link in peer's list */
- struct list_head proc_link; /* link in proc list */
- struct list_head err_link; /* link in ICMP error processing list */
- struct list_head id_link; /* link in ID grant list */
- struct sockaddr_in addr; /* remote address */
- struct rxrpc_call *channels[4]; /* channels (active calls) */
- wait_queue_head_t chanwait; /* wait for channel to become available */
- spinlock_t lock; /* access lock */
- struct timeval atime; /* last access time */
- size_t mtu_size; /* MTU size for outbound messages */
- unsigned call_counter; /* call ID counter */
- rxrpc_serial_t serial_counter; /* packet serial number counter */
-
- /* the following should all be in net order */
- __be32 in_epoch; /* peer's epoch */
- __be32 out_epoch; /* my epoch */
- __be32 conn_id; /* connection ID, appropriately shifted */
- __be16 service_id; /* service ID */
- uint8_t security_ix; /* security ID */
- uint8_t in_clientflag; /* RXRPC_CLIENT_INITIATED if we are server */
- uint8_t out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */
-};
-
-extern int rxrpc_create_connection(struct rxrpc_transport *trans,
- __be16 port,
- __be32 addr,
- uint16_t service_id,
- void *security,
- struct rxrpc_connection **_conn);
-
-extern int rxrpc_connection_lookup(struct rxrpc_peer *peer,
- struct rxrpc_message *msg,
- struct rxrpc_connection **_conn);
-
-static inline void rxrpc_get_connection(struct rxrpc_connection *conn)
-{
- BUG_ON(atomic_read(&conn->usage)<0);
- atomic_inc(&conn->usage);
- //printk("rxrpc_get_conn(%p{u=%d})\n",conn,atomic_read(&conn->usage));
-}
-
-extern void rxrpc_put_connection(struct rxrpc_connection *conn);
-
-extern int rxrpc_conn_receive_call_packet(struct rxrpc_connection *conn,
- struct rxrpc_call *call,
- struct rxrpc_message *msg);
-
-extern void rxrpc_conn_handle_error(struct rxrpc_connection *conn, int local, int errno);
-
-#endif /* _LINUX_RXRPC_CONNECTION_H */
+++ /dev/null
-/* krxiod.h: Rx RPC I/O kernel thread interface
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_KRXIOD_H
-#define _LINUX_RXRPC_KRXIOD_H
-
-#include <rxrpc/types.h>
-
-extern int rxrpc_krxiod_init(void);
-extern void rxrpc_krxiod_kill(void);
-extern void rxrpc_krxiod_queue_transport(struct rxrpc_transport *trans);
-extern void rxrpc_krxiod_dequeue_transport(struct rxrpc_transport *trans);
-extern void rxrpc_krxiod_queue_peer(struct rxrpc_peer *peer);
-extern void rxrpc_krxiod_dequeue_peer(struct rxrpc_peer *peer);
-extern void rxrpc_krxiod_clear_peers(struct rxrpc_transport *trans);
-extern void rxrpc_krxiod_queue_call(struct rxrpc_call *call);
-extern void rxrpc_krxiod_dequeue_call(struct rxrpc_call *call);
-
-#endif /* _LINUX_RXRPC_KRXIOD_H */
+++ /dev/null
-/* krxsecd.h: Rx RPC security kernel thread interface
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_KRXSECD_H
-#define _LINUX_RXRPC_KRXSECD_H
-
-#include <rxrpc/types.h>
-
-extern int rxrpc_krxsecd_init(void);
-extern void rxrpc_krxsecd_kill(void);
-extern void rxrpc_krxsecd_clear_transport(struct rxrpc_transport *trans);
-extern void rxrpc_krxsecd_queue_incoming_call(struct rxrpc_message *msg);
-
-#endif /* _LINUX_RXRPC_KRXSECD_H */
+++ /dev/null
-/* krxtimod.h: RxRPC timeout daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_KRXTIMOD_H
-#define _LINUX_RXRPC_KRXTIMOD_H
-
-#include <rxrpc/types.h>
-
-struct rxrpc_timer_ops {
- /* called when the front of the timer queue has timed out */
- void (*timed_out)(struct rxrpc_timer *timer);
-};
-
-/*****************************************************************************/
-/*
- * RXRPC timer/timeout record
- */
-struct rxrpc_timer
-{
- struct list_head link; /* link in timer queue */
- unsigned long timo_jif; /* timeout time */
- const struct rxrpc_timer_ops *ops; /* timeout expiry function */
-};
-
-static inline void rxrpc_timer_init(rxrpc_timer_t *timer, const struct rxrpc_timer_ops *ops)
-{
- INIT_LIST_HEAD(&timer->link);
- timer->ops = ops;
-}
-
-extern int rxrpc_krxtimod_start(void);
-extern void rxrpc_krxtimod_kill(void);
-
-extern void rxrpc_krxtimod_add_timer(rxrpc_timer_t *timer, unsigned long timeout);
-extern int rxrpc_krxtimod_del_timer(rxrpc_timer_t *timer);
-
-#endif /* _LINUX_RXRPC_KRXTIMOD_H */
+++ /dev/null
-/* message.h: Rx message caching
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_MESSAGE_H
-#define _LINUX_RXRPC_MESSAGE_H
-
-#include <rxrpc/packet.h>
-
-/*****************************************************************************/
-/*
- * Rx message record
- */
-struct rxrpc_message
-{
- atomic_t usage;
- struct list_head link; /* list link */
- struct timeval stamp; /* time received or last sent */
- rxrpc_seq_t seq; /* message sequence number */
-
- int state; /* the state the message is currently in */
-#define RXRPC_MSG_PREPARED 0
-#define RXRPC_MSG_SENT 1
-#define RXRPC_MSG_ACKED 2 /* provisionally ACK'd */
-#define RXRPC_MSG_DONE 3 /* definitively ACK'd (msg->seq<ack.firstPacket) */
-#define RXRPC_MSG_RECEIVED 4
-#define RXRPC_MSG_ERROR -1
- char rttdone; /* used for RTT */
-
- struct rxrpc_transport *trans; /* transport received through */
- struct rxrpc_connection *conn; /* connection received over */
- struct sk_buff *pkt; /* received packet */
- off_t offset; /* offset into pkt of next byte of data */
-
- struct rxrpc_header hdr; /* message header */
-
- int dcount; /* data part count */
- size_t dsize; /* data size */
-#define RXRPC_MSG_MAX_IOCS 8
- struct kvec data[RXRPC_MSG_MAX_IOCS]; /* message data */
- unsigned long dfree; /* bit mask indicating kfree(data[x]) if T */
-};
-
-#define rxrpc_get_message(M) do { atomic_inc(&(M)->usage); } while(0)
-
-extern void __rxrpc_put_message(struct rxrpc_message *msg);
-static inline void rxrpc_put_message(struct rxrpc_message *msg)
-{
- BUG_ON(atomic_read(&msg->usage)<=0);
- if (atomic_dec_and_test(&msg->usage))
- __rxrpc_put_message(msg);
-}
-
-extern int rxrpc_conn_newmsg(struct rxrpc_connection *conn,
- struct rxrpc_call *call,
- uint8_t type,
- int count,
- struct kvec *diov,
- gfp_t alloc_flags,
- struct rxrpc_message **_msg);
-
-extern int rxrpc_conn_sendmsg(struct rxrpc_connection *conn, struct rxrpc_message *msg);
-
-#endif /* _LINUX_RXRPC_MESSAGE_H */
/* packet.h: Rx packet layout and definitions
*
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
#ifndef _LINUX_RXRPC_PACKET_H
#define _LINUX_RXRPC_PACKET_H
-#include <rxrpc/types.h>
-
-#define RXRPC_IPUDP_SIZE 28
-extern size_t RXRPC_MAX_PACKET_SIZE;
-#define RXRPC_MAX_PACKET_DATA_SIZE (RXRPC_MAX_PACKET_SIZE - sizeof(struct rxrpc_header))
-#define RXRPC_LOCAL_PACKET_SIZE RXRPC_MAX_PACKET_SIZE
-#define RXRPC_REMOTE_PACKET_SIZE (576 - RXRPC_IPUDP_SIZE)
+typedef u32 rxrpc_seq_t; /* Rx message sequence number */
+typedef u32 rxrpc_serial_t; /* Rx message serial number */
+typedef __be32 rxrpc_seq_net_t; /* on-the-wire Rx message sequence number */
+typedef __be32 rxrpc_serial_net_t; /* on-the-wire Rx message serial number */
/*****************************************************************************/
/*
* on-the-wire Rx packet header
* - all multibyte fields should be in network byte order
*/
-struct rxrpc_header
-{
+struct rxrpc_header {
__be32 epoch; /* client boot timestamp */
__be32 cid; /* connection and channel ID */
#define RXRPC_MAXCALLS 4 /* max active calls per conn */
#define RXRPC_CHANNELMASK (RXRPC_MAXCALLS-1) /* mask for channel ID */
#define RXRPC_CIDMASK (~RXRPC_CHANNELMASK) /* mask for connection ID */
-#define RXRPC_CIDSHIFT 2 /* shift for connection ID */
+#define RXRPC_CIDSHIFT ilog2(RXRPC_MAXCALLS) /* shift for connection ID */
+#define RXRPC_CID_INC (1 << RXRPC_CIDSHIFT) /* connection ID increment */
__be32 callNumber; /* call ID (0 for connection-level packets) */
#define RXRPC_PROCESS_MAXCALLS (1<<2) /* maximum number of active calls per conn (power of 2) */
uint8_t userStatus; /* app-layer defined status */
uint8_t securityIndex; /* security protocol ID */
- __be16 _rsvd; /* reserved (used by kerberos security as cksum) */
+ union {
+ __be16 _rsvd; /* reserved */
+ __be16 cksum; /* kerberos security checksum */
+ };
__be16 serviceId; /* service ID */
} __attribute__((packed));
* - new__rsvd = j__rsvd
* - duplicating all other fields
*/
-struct rxrpc_jumbo_header
-{
+struct rxrpc_jumbo_header {
uint8_t flags; /* packet flags (as per rxrpc_header) */
uint8_t pad;
__be16 _rsvd; /* reserved (used by kerberos security as cksum) */
* on-the-wire Rx ACK packet data payload
* - all multibyte fields should be in network byte order
*/
-struct rxrpc_ackpacket
-{
+struct rxrpc_ackpacket {
__be16 bufferSpace; /* number of packet buffers available */
__be16 maxSkew; /* diff between serno being ACK'd and highest serial no
* received */
} __attribute__((packed));
+/*
+ * ACK packets can have a further piece of information tagged on the end
+ */
+struct rxrpc_ackinfo {
+ __be32 rxMTU; /* maximum Rx MTU size (bytes) [AFS 3.3] */
+ __be32 maxMTU; /* maximum interface MTU size (bytes) [AFS 3.3] */
+ __be32 rwind; /* Rx window size (packets) [AFS 3.4] */
+ __be32 jumbo_max; /* max packets to stick into a jumbo packet [AFS 3.5] */
+};
+
+/*****************************************************************************/
+/*
+ * Kerberos security type-2 challenge packet
+ */
+struct rxkad_challenge {
+ __be32 version; /* version of this challenge type */
+ __be32 nonce; /* encrypted random number */
+ __be32 min_level; /* minimum security level */
+ __be32 __padding; /* padding to 8-byte boundary */
+} __attribute__((packed));
+
+/*****************************************************************************/
+/*
+ * Kerberos security type-2 response packet
+ */
+struct rxkad_response {
+ __be32 version; /* version of this reponse type */
+ __be32 __pad;
+
+ /* encrypted bit of the response */
+ struct {
+ __be32 epoch; /* current epoch */
+ __be32 cid; /* parent connection ID */
+ __be32 checksum; /* checksum */
+ __be32 securityIndex; /* security type */
+ __be32 call_id[4]; /* encrypted call IDs */
+ __be32 inc_nonce; /* challenge nonce + 1 */
+ __be32 level; /* desired level */
+ } encrypted;
+
+ __be32 kvno; /* Kerberos key version number */
+ __be32 ticket_len; /* Kerberos ticket length */
+} __attribute__((packed));
+
+/*****************************************************************************/
+/*
+ * RxRPC-level abort codes
+ */
+#define RX_CALL_DEAD -1 /* call/conn has been inactive and is shut down */
+#define RX_INVALID_OPERATION -2 /* invalid operation requested / attempted */
+#define RX_CALL_TIMEOUT -3 /* call timeout exceeded */
+#define RX_EOF -4 /* unexpected end of data on read op */
+#define RX_PROTOCOL_ERROR -5 /* low-level protocol error */
+#define RX_USER_ABORT -6 /* generic user abort */
+#define RX_ADDRINUSE -7 /* UDP port in use */
+#define RX_DEBUGI_BADTYPE -8 /* bad debugging packet type */
+
+/*
+ * (un)marshalling abort codes (rxgen)
+ */
+#define RXGEN_CC_MARSHAL -450
+#define RXGEN_CC_UNMARSHAL -451
+#define RXGEN_SS_MARSHAL -452
+#define RXGEN_SS_UNMARSHAL -453
+#define RXGEN_DECODE -454
+#define RXGEN_OPCODE -455
+#define RXGEN_SS_XDRFREE -456
+#define RXGEN_CC_XDRFREE -457
+
+/*
+ * Rx kerberos security abort codes
+ * - unfortunately we have no generalised security abort codes to say things
+ * like "unsupported security", so we have to use these instead and hope the
+ * other side understands
+ */
+#define RXKADINCONSISTENCY 19270400 /* security module structure inconsistent */
+#define RXKADPACKETSHORT 19270401 /* packet too short for security challenge */
+#define RXKADLEVELFAIL 19270402 /* security level negotiation failed */
+#define RXKADTICKETLEN 19270403 /* ticket length too short or too long */
+#define RXKADOUTOFSEQUENCE 19270404 /* packet had bad sequence number */
+#define RXKADNOAUTH 19270405 /* caller not authorised */
+#define RXKADBADKEY 19270406 /* illegal key: bad parity or weak */
+#define RXKADBADTICKET 19270407 /* security object was passed a bad ticket */
+#define RXKADUNKNOWNKEY 19270408 /* ticket contained unknown key version number */
+#define RXKADEXPIRED 19270409 /* authentication expired */
+#define RXKADSEALEDINCON 19270410 /* sealed data inconsistent */
+#define RXKADDATALEN 19270411 /* user data too long */
+#define RXKADILLEGALLEVEL 19270412 /* caller not authorised to use encrypted conns */
+
#endif /* _LINUX_RXRPC_PACKET_H */
+++ /dev/null
-/* peer.h: Rx RPC per-transport peer record
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_PEER_H
-#define _LINUX_RXRPC_PEER_H
-
-#include <linux/wait.h>
-#include <rxrpc/types.h>
-#include <rxrpc/krxtimod.h>
-
-struct rxrpc_peer_ops
-{
- /* peer record being added */
- int (*adding)(struct rxrpc_peer *peer);
-
- /* peer record being discarded from graveyard */
- void (*discarding)(struct rxrpc_peer *peer);
-
- /* change of epoch detected on connection */
- void (*change_of_epoch)(struct rxrpc_connection *conn);
-};
-
-/*****************************************************************************/
-/*
- * Rx RPC per-transport peer record
- * - peers only retain a refcount on the transport when they are active
- * - peers with refcount==0 are inactive and reside in the transport's graveyard
- */
-struct rxrpc_peer
-{
- atomic_t usage;
- struct rxrpc_peer_ops *ops; /* operations on this peer */
- struct rxrpc_transport *trans; /* owner transport */
- struct rxrpc_timer timeout; /* timeout for grave destruction */
- struct list_head link; /* link in transport's peer list */
- struct list_head proc_link; /* link in /proc list */
- rwlock_t conn_idlock; /* lock for connection IDs */
- struct list_head conn_idlist; /* list of connections granted IDs */
- uint32_t conn_idcounter; /* connection ID counter */
- rwlock_t conn_lock; /* lock for active/dead connections */
- struct list_head conn_active; /* active connections to/from this peer */
- struct list_head conn_graveyard; /* graveyard for inactive connections */
- spinlock_t conn_gylock; /* lock for conn_graveyard */
- wait_queue_head_t conn_gy_waitq; /* wait queue hit when graveyard is empty */
- atomic_t conn_count; /* number of attached connections */
- struct in_addr addr; /* remote address */
- size_t if_mtu; /* interface MTU for this peer */
- spinlock_t lock; /* access lock */
-
- void *user; /* application layer data */
-
- /* calculated RTT cache */
-#define RXRPC_RTT_CACHE_SIZE 32
- suseconds_t rtt; /* current RTT estimate (in uS) */
- unsigned rtt_point; /* next entry at which to insert */
- unsigned rtt_usage; /* amount of cache actually used */
- suseconds_t rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* calculated RTT cache */
-};
-
-
-extern int rxrpc_peer_lookup(struct rxrpc_transport *trans,
- __be32 addr,
- struct rxrpc_peer **_peer);
-
-static inline void rxrpc_get_peer(struct rxrpc_peer *peer)
-{
- BUG_ON(atomic_read(&peer->usage)<0);
- atomic_inc(&peer->usage);
- //printk("rxrpc_get_peer(%p{u=%d})\n",peer,atomic_read(&peer->usage));
-}
-
-extern void rxrpc_put_peer(struct rxrpc_peer *peer);
-
-#endif /* _LINUX_RXRPC_PEER_H */
+++ /dev/null
-/* rx.h: Rx RPC interface
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_RXRPC_H
-#define _LINUX_RXRPC_RXRPC_H
-
-#ifdef __KERNEL__
-
-extern __be32 rxrpc_epoch;
-
-#ifdef CONFIG_SYSCTL
-extern int rxrpc_ktrace;
-extern int rxrpc_kdebug;
-extern int rxrpc_kproto;
-extern int rxrpc_knet;
-#else
-#define rxrpc_ktrace 0
-#define rxrpc_kdebug 0
-#define rxrpc_kproto 0
-#define rxrpc_knet 0
-#endif
-
-extern int rxrpc_sysctl_init(void);
-extern void rxrpc_sysctl_cleanup(void);
-
-#endif /* __KERNEL__ */
-
-#endif /* _LINUX_RXRPC_RXRPC_H */
+++ /dev/null
-/* transport.h: Rx transport management
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _LINUX_RXRPC_TRANSPORT_H
-#define _LINUX_RXRPC_TRANSPORT_H
-
-#include <rxrpc/types.h>
-#include <rxrpc/krxiod.h>
-#include <rxrpc/rxrpc.h>
-#include <linux/skbuff.h>
-#include <linux/rwsem.h>
-
-typedef int (*rxrpc_newcall_fnx_t)(struct rxrpc_call *call);
-
-extern wait_queue_head_t rxrpc_krxiod_wq;
-
-/*****************************************************************************/
-/*
- * Rx operation specification
- * - tables of these must be sorted by op ID so that they can be binary-chop searched
- */
-struct rxrpc_operation
-{
- unsigned id; /* operation ID */
- size_t asize; /* minimum size of argument block */
- const char *name; /* name of operation */
- void *user; /* initial user data */
-};
-
-/*****************************************************************************/
-/*
- * Rx transport service record
- */
-struct rxrpc_service
-{
- struct list_head link; /* link in services list on transport */
- struct module *owner; /* owner module */
- rxrpc_newcall_fnx_t new_call; /* new call handler function */
- const char *name; /* name of service */
- unsigned short service_id; /* Rx service ID */
- rxrpc_call_attn_func_t attn_func; /* call requires attention callback */
- rxrpc_call_error_func_t error_func; /* call error callback */
- rxrpc_call_aemap_func_t aemap_func; /* abort -> errno mapping callback */
-
- const struct rxrpc_operation *ops_begin; /* beginning of operations table */
- const struct rxrpc_operation *ops_end; /* end of operations table */
-};
-
-/*****************************************************************************/
-/*
- * Rx transport endpoint record
- */
-struct rxrpc_transport
-{
- atomic_t usage;
- struct socket *socket; /* my UDP socket */
- struct list_head services; /* services listening on this socket */
- struct list_head link; /* link in transport list */
- struct list_head proc_link; /* link in transport proc list */
- struct list_head krxiodq_link; /* krxiod attention queue link */
- spinlock_t lock; /* access lock */
- struct list_head peer_active; /* active peers connected to over this socket */
- struct list_head peer_graveyard; /* inactive peer list */
- spinlock_t peer_gylock; /* peer graveyard lock */
- wait_queue_head_t peer_gy_waitq; /* wait queue hit when peer graveyard is empty */
- rwlock_t peer_lock; /* peer list access lock */
- atomic_t peer_count; /* number of peers */
- struct rxrpc_peer_ops *peer_ops; /* default peer operations */
- unsigned short port; /* port upon which listening */
- volatile char error_rcvd; /* T if received ICMP error outstanding */
-};
-
-extern int rxrpc_create_transport(unsigned short port,
- struct rxrpc_transport **_trans);
-
-static inline void rxrpc_get_transport(struct rxrpc_transport *trans)
-{
- BUG_ON(atomic_read(&trans->usage) <= 0);
- atomic_inc(&trans->usage);
- //printk("rxrpc_get_transport(%p{u=%d})\n",
- // trans, atomic_read(&trans->usage));
-}
-
-extern void rxrpc_put_transport(struct rxrpc_transport *trans);
-
-extern int rxrpc_add_service(struct rxrpc_transport *trans,
- struct rxrpc_service *srv);
-
-extern void rxrpc_del_service(struct rxrpc_transport *trans,
- struct rxrpc_service *srv);
-
-extern void rxrpc_trans_receive_packet(struct rxrpc_transport *trans);
-
-extern int rxrpc_trans_immediate_abort(struct rxrpc_transport *trans,
- struct rxrpc_message *msg,
- int error);
-
-#endif /* _LINUX_RXRPC_TRANSPORT_H */
static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
{
- struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
nlh->nlmsg_pid = pid;
}
u32 rlen;
while (skb->len >= NLMSG_SPACE(0)) {
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
return;
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
printk(KERN_INFO "audit: initializing netlink socket (%s)\n",
audit_default ? "enabled" : "disabled");
audit_sock = netlink_kernel_create(NETLINK_AUDIT, 0, audit_receive,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (!audit_sock)
audit_panic("cannot initialize netlink socket");
else
goto out;
}
va_copy(args2, args);
- len = vsnprintf(skb->tail, avail, fmt, args);
+ len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args);
if (len >= avail) {
/* The printk buffer is 1024 bytes long, so if we get
* here and AUDIT_BUFSIZ is at least 1024, then we can
max_t(unsigned, AUDIT_BUFSIZ, 1+len-avail));
if (!avail)
goto out;
- len = vsnprintf(skb->tail, avail, fmt, args2);
+ len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args2);
}
if (len > 0)
skb_put(skb, len);
return;
}
- ptr = skb->tail;
+ ptr = skb_tail_pointer(skb);
for (i=0; i<len; i++) {
*ptr++ = hex[(buf[i] & 0xF0)>>4]; /* Upper nibble */
*ptr++ = hex[buf[i] & 0x0F]; /* Lower nibble */
if (!avail)
return;
}
- ptr = skb->tail;
+ ptr = skb_tail_pointer(skb);
*ptr++ = '"';
memcpy(ptr, string, slen);
ptr += slen;
audit_log_lost("rate limit exceeded");
} else {
if (audit_pid) {
- struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
nlh->nlmsg_len = ab->skb->len - NLMSG_SPACE(0);
skb_queue_tail(&audit_skb_queue, ab->skb);
ab->skb = NULL;
return timespec_to_ktime(now);
}
+EXPORT_SYMBOL_GPL(ktime_get);
/**
* ktime_get_real - get the real (wall-) time in ktime_t format
{
int op;
- if (!capable(CAP_SYS_ADMIN))
+ if (write && !capable(CAP_SYS_ADMIN))
return -EPERM;
op = OP_OR;
*/
static int send_reply(struct sk_buff *skb, pid_t pid)
{
- struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+ struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
void *reply = genlmsg_data(genlhdr);
int rc;
static void send_cpu_listeners(struct sk_buff *skb,
struct listener_list *listeners)
{
- struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+ struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
struct listener *s, *tmp;
struct sk_buff *skb_next, *skb_cur = skb;
void *reply = genlmsg_data(genlhdr);
return ts;
}
+EXPORT_SYMBOL(ns_to_timespec);
/**
* ns_to_timeval - Convert nanoseconds to timeval
return tv;
}
+EXPORT_SYMBOL(ns_to_timeval);
/*
* Convert jiffies to milliseconds and back.
return ret;
}
+EXPORT_SYMBOL(try_to_del_timer_sync);
+
/**
* del_timer_sync - deactivate a timer and wait for the handler to finish.
* @timer: the timer to be deactivated
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select STACKTRACE
- select FRAME_POINTER if !X86
+ select FRAME_POINTER if !X86 && !MIPS
select KALLSYMS
select KALLSYMS_ALL
lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o dump_stack.o \
- idr.o div64.o int_sqrt.o bitmap.o extable.o prio_tree.o \
+ idr.o int_sqrt.o bitmap.o extable.o prio_tree.o \
sha1.o irq_regs.o reciprocal_div.o
lib-$(CONFIG_MMU) += ioremap.o
lib-y += kobject.o kref.o kobject_uevent.o klist.o
-obj-y += sort.o parser.o halfmd4.o debug_locks.o random32.o bust_spinlocks.o
+obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
+ bust_spinlocks.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
/* Not needed on 64bit architectures */
#if BITS_PER_LONG == 32
-uint32_t __div64_32(uint64_t *n, uint32_t base)
+uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
{
uint64_t rem = *n;
uint64_t b = base;
EXPORT_SYMBOL(__div64_32);
+/* 64bit divisor, dividend and result. dynamic precision */
+uint64_t div64_64(uint64_t dividend, uint64_t divisor)
+{
+ uint32_t high, d;
+
+ high = divisor >> 32;
+ if (high) {
+ unsigned int shift = fls(high);
+
+ d = divisor >> shift;
+ dividend >>= shift;
+ } else
+ d = divisor;
+
+ do_div(dividend, d);
+
+ return dividend;
+}
+EXPORT_SYMBOL(div64_64);
+
#endif /* BITS_PER_LONG == 32 */
static int __init kobject_uevent_init(void)
{
uevent_sock = netlink_kernel_create(NETLINK_KOBJECT_UEVENT, 1, NULL,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (!uevent_sock) {
printk(KERN_ERR
EXPORT_SYMBOL(strnicmp);
#endif
+#ifndef __HAVE_ARCH_STRCASECMP
+int strcasecmp(const char *s1, const char *s2)
+{
+ int c1, c2;
+
+ do {
+ c1 = tolower(*s1++);
+ c2 = tolower(*s2++);
+ } while (c1 == c2 && c1 != 0);
+ return c1 - c2;
+}
+EXPORT_SYMBOL(strcasecmp);
+#endif
+
+#ifndef __HAVE_ARCH_STRNCASECMP
+int strncasecmp(const char *s1, const char *s2, size_t n)
+{
+ int c1, c2;
+
+ do {
+ c1 = tolower(*s1++);
+ c2 = tolower(*s2++);
+ } while ((--n > 0) && c1 == c2 && c1 != 0);
+ return c1 - c2;
+}
+EXPORT_SYMBOL(strncasecmp);
+#endif
+
#ifndef __HAVE_ARCH_STRCPY
/**
* strcpy - Copy a %NUL terminated string
void **pslot;
if (!mapping) {
- /* Anonymous page */
+ /* Anonymous page without mapping */
if (page_count(page) != 1)
return -EAGAIN;
return 0;
*/
__put_page(page);
+ /*
+ * If moved to a different zone then also account
+ * the page for that zone. Other VM counters will be
+ * taken care of when we establish references to the
+ * new page and drop references to the old page.
+ *
+ * Note that anonymous pages are accounted for
+ * via NR_FILE_PAGES and NR_ANON_PAGES if they
+ * are mapped to swap space.
+ */
+ __dec_zone_page_state(page, NR_FILE_PAGES);
+ __inc_zone_page_state(newpage, NR_FILE_PAGES);
+
write_unlock_irq(&mapping->tree_lock);
return 0;
struct zone **z;
nodemask_t nodes;
int node;
+
+ nodes_clear(nodes);
/* node has memory ? */
for_each_online_node(node)
if (NODE_DATA(node)->node_present_pages)
*/
do_each_thread(g, q) {
if (q->mm == mm && q->tgid != p->tgid)
- force_sig(SIGKILL, p);
+ force_sig(SIGKILL, q);
} while_each_thread(g, q);
return 0;
/*
* Start background writeback (via pdflush) at this percentage
*/
-int dirty_background_ratio = 10;
+int dirty_background_ratio = 5;
/*
* The generator of dirty data starts writeback at this percentage
*/
-int vm_dirty_ratio = 40;
+int vm_dirty_ratio = 10;
/*
* The interval between `kupdate'-style writebacks, in jiffies
struct address_space *mapping = page_mapping(page);
if (mapping)
ret = page_mkclean_file(mapping, page);
- if (page_test_and_clear_dirty(page))
+ if (page_test_dirty(page)) {
+ page_clear_dirty(page);
ret = 1;
+ }
}
return ret;
* Leaving it set also helps swapoff to reinstate ptes
* faster for those pages still in swapcache.
*/
- if (page_test_and_clear_dirty(page))
+ if (page_test_dirty(page)) {
+ page_clear_dirty(page);
set_page_dirty(page);
+ }
__dec_zone_page_state(page,
PageAnon(page) ? NR_ANON_PAGES : NR_FILE_MAPPED);
}
struct fddihdr *fddi = (struct fddihdr *)skb->data;
#ifdef CONFIG_INET
- if (fddi->hdr.llc_snap.ethertype == __constant_htons(ETH_P_IP))
+ if (fddi->hdr.llc_snap.ethertype == htons(ETH_P_IP))
/* Try to get ARP to resolve the header and fill destination address */
return arp_find(fddi->daddr, skb);
else
* to start of packet data. Assume 802.2 SNAP frames for now.
*/
- skb->mac.raw = skb->data; /* point to frame control (FC) */
+ skb->dev = dev;
+ skb_reset_mac_header(skb); /* point to frame control (FC) */
if(fddi->hdr.llc_8022_1.dsap==0xe0)
{
skb_pull(skb, FDDI_K_8022_HLEN-3);
- type = __constant_htons(ETH_P_802_2);
+ type = htons(ETH_P_802_2);
}
else
{
* Due to the stupidity of the little endian byte-order we
* have to set the fp field this way.
*/
- hip->fp.fixed = __constant_htonl(0x04800018);
+ hip->fp.fixed = htonl(0x04800018);
hip->fp.d2_size = htonl(len + 8);
hip->le.fc = 0;
hip->le.double_wide = 0; /* only HIPPI 800 for the time being */
* Only IP is currently supported
*/
- if(hip->snap.ethertype != __constant_htons(ETH_P_IP))
+ if(hip->snap.ethertype != htons(ETH_P_IP))
{
printk(KERN_DEBUG "%s: unable to resolve type %X addresses.\n",skb->dev->name,ntohs(hip->snap.ethertype));
return 0;
{
struct hippi_hdr *hip;
- hip = (struct hippi_hdr *) skb->data;
-
/*
* This is actually wrong ... question is if we really should
* set the raw address here.
*/
- skb->mac.raw = skb->data;
- skb_pull(skb, HIPPI_HLEN);
+ skb->dev = dev;
+ skb_reset_mac_header(skb);
+ hip = (struct hippi_hdr *)skb_mac_header(skb);
+ skb_pull(skb, HIPPI_HLEN);
/*
* No fancy promisc stuff here now.
};
rcu_read_lock();
- proto = find_snap_client(skb->h.raw);
+ proto = find_snap_client(skb_transport_header(skb));
if (proto) {
/* Pass the frame on. */
- skb->h.raw += 5;
+ skb->transport_header += 5;
skb_pull_rcsum(skb, 5);
rc = proto->rcvfunc(skb, dev, &snap_packet_type, orig_dev);
} else {
__be16 tr_type_trans(struct sk_buff *skb, struct net_device *dev)
{
- struct trh_hdr *trh=(struct trh_hdr *)skb->data;
+ struct trh_hdr *trh;
struct trllc *trllc;
unsigned riflen=0;
- skb->mac.raw = skb->data;
+ skb->dev = dev;
+ skb_reset_mac_header(skb);
+ trh = tr_hdr(skb);
if(trh->saddr[0] & TR_RII)
riflen = (ntohs(trh->rcf) & TR_RCF_LEN_MASK) >> 8;
if(j==1) {
segment=ntohs(entry->rseg[j-1])>>4;
seq_printf(seq," %03X",segment);
- };
+ }
+
segment=ntohs(entry->rseg[j])>>4;
brdgnmb=ntohs(entry->rseg[j-1])&0x00f;
seq_printf(seq,"-%01X-%03X",brdgnmb,segment);
*/
default:
snprintf(name, IFNAMSIZ, "vlan%.4i", VLAN_ID);
- };
+ }
new_dev = alloc_netdev(sizeof(struct vlan_dev_info), name,
vlan_setup);
break;
}
break;
- };
+ }
out:
return NOTIFY_DONE;
printk(VLAN_DBG "%s: Unknown VLAN CMD: %x \n",
__FUNCTION__, args.cmd);
return -EINVAL;
- };
+ }
out:
return err;
}
memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
break;
- };
+ }
return 0;
}
/* Lifted from Gleb's VLAN code... */
memmove(skb->data - ETH_HLEN,
skb->data - VLAN_ETH_HLEN, 12);
- skb->mac.raw += VLAN_HLEN;
+ skb->mac_header += VLAN_HLEN;
}
}
break;
default:
break;
- };
+ }
/* Was a VLAN packet, grab the encapsulated protocol, which the layer
* three protocols care about.
* won't work for fault tolerant netware but does for the rest.
*/
if (*(unsigned short *)rawp == 0xFFFF) {
- skb->protocol = __constant_htons(ETH_P_802_3);
+ skb->protocol = htons(ETH_P_802_3);
/* place it back on the queue to be handled by true layer 3 protocols.
*/
/*
* Real 802.2 LLC
*/
- skb->protocol = __constant_htons(ETH_P_802_2);
+ skb->protocol = htons(ETH_P_802_2);
/* place it back on the queue to be handled by upper layer protocols.
*/
}
skb->protocol = htons(ETH_P_8021Q);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
}
/* Before delegating work to the lower layer, enter our MAC-address */
* OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs...
*/
- if (veth->h_vlan_proto != __constant_htons(ETH_P_8021Q)) {
+ if (veth->h_vlan_proto != htons(ETH_P_8021Q)) {
int orig_headroom = skb_headroom(skb);
unsigned short veth_TCI;
menu "Networking options"
-config NETDEBUG
- bool "Network packet debugging"
- help
- You can say Y here if you want to get additional messages useful in
- debugging bad packets, but can overwhelm logs under denial of service
- attacks.
-
source "net/packet/Kconfig"
source "net/unix/Kconfig"
source "net/xfrm/Kconfig"
source "net/ax25/Kconfig"
source "net/irda/Kconfig"
source "net/bluetooth/Kconfig"
-source "net/ieee80211/Kconfig"
-
-config WIRELESS_EXT
- bool
+source "net/rxrpc/Kconfig"
config FIB_RULES
bool
+menu "Wireless"
+
+source "net/wireless/Kconfig"
+source "net/ieee80211/Kconfig"
+
+endmenu
+
endif # if NET
endmenu # Networking
obj-$(CONFIG_BT) += bluetooth/
obj-$(CONFIG_SUNRPC) += sunrpc/
obj-$(CONFIG_RXRPC) += rxrpc/
+obj-$(CONFIG_AF_RXRPC) += rxrpc/
obj-$(CONFIG_ATM) += atm/
obj-$(CONFIG_DECNET) += decnet/
obj-$(CONFIG_ECONET) += econet/
ifeq ($(CONFIG_NET),y)
obj-$(CONFIG_SYSCTL) += sysctl_net.o
endif
+
+obj-y += wireless/
/* Set up the buffer */
skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length);
- skb->nh.raw = skb->h.raw = skb_put(skb, sizeof(*eah));
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ skb_put(skb, sizeof(*eah));
skb->protocol = htons(ETH_P_ATALK);
skb->dev = dev;
eah = aarp_hdr(skb);
/* Set up the buffer */
skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length);
- skb->nh.raw = skb->h.raw = skb_put(skb, sizeof(*eah));
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ skb_put(skb, sizeof(*eah));
skb->protocol = htons(ETH_P_ATALK);
skb->dev = dev;
eah = aarp_hdr(skb);
/* Set up the buffer */
skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length);
- skb->nh.raw = skb->h.raw = skb_put(skb, sizeof(*eah));
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ skb_put(skb, sizeof(*eah));
skb->protocol = htons(ETH_P_ATALK);
skb->dev = dev;
eah = aarp_hdr(skb);
int hash;
struct aarp_entry *a;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* Check for LocalTalk first */
if (dev->type == ARPHRD_LOCALTLK) {
static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
int len, unsigned long sum)
{
- int start = skb_headlen(skb);
+ int end = skb_headlen(skb);
int i, copy;
/* checksum stuff in header space */
- if ( (copy = start - offset) > 0) {
+ if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
sum = atalk_sum_partial(skb->data + offset, copy, sum);
/* checksum stuff in frags */
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
u8 *vaddr;
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
if (copy > len)
copy = len;
vaddr = kmap_skb_frag(frag);
- sum = atalk_sum_partial(vaddr + frag->page_offset +
- offset - start, copy, sum);
+ sum = atalk_sum_partial(vaddr + frag->page_offset,
+ copy, sum);
kunmap_skb_frag(vaddr);
if (!(len -= copy))
return sum;
offset += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- sum = atalk_sum_skb(list, offset - start,
- copy, sum);
+ sum = atalk_sum_skb(list, 0, copy, sum);
if ((len -= copy) == 0)
return sum;
offset += copy;
}
- start = end;
}
}
skb->protocol = htons(ETH_P_IP);
skb_pull(skb, 13);
skb->dev = dev;
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
stats = dev->priv;
stats->rx_packets++;
* @pt - packet type
*
* Receive a packet (in skb) from device dev. This has come from the SNAP
- * decoder, and on entry skb->h.raw is the DDP header, skb->len is the DDP
- * header, skb->len is the DDP length. The physical headers have been
- * extracted. PPP should probably pass frames marked as for this layer.
- * [ie ARPHRD_ETHERTALK]
+ * decoder, and on entry skb->transport_header is the DDP header, skb->len
+ * is the DDP header, skb->len is the DDP length. The physical headers
+ * have been extracted. PPP should probably pass frames marked as for this
+ * layer. [ie ARPHRD_ETHERTALK]
*/
static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev)
struct packet_type *pt, struct net_device *orig_dev)
{
/* Expand any short form frames */
- if (skb->mac.raw[2] == 1) {
+ if (skb_mac_header(skb)[2] == 1) {
struct ddpehdr *ddp;
/* Find our address */
struct atalk_addr *ap = atalk_find_dev_addr(dev);
* we write the network numbers !
*/
- ddp->deh_dnode = skb->mac.raw[0]; /* From physical header */
- ddp->deh_snode = skb->mac.raw[1]; /* From physical header */
+ ddp->deh_dnode = skb_mac_header(skb)[0]; /* From physical header */
+ ddp->deh_snode = skb_mac_header(skb)[1]; /* From physical header */
ddp->deh_dnet = ap->s_net; /* Network number */
ddp->deh_snet = ap->s_net;
/* Non routable, so force a drop if we slip up later */
ddp->deh_len_hops = htons(skb->len + (DDP_MAXHOPS << 10));
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
return atalk_rcv(skb, dev, pt, orig_dev);
freeit:
case SIOCGSTAMP:
rc = sock_get_timestamp(sk, argp);
break;
+ case SIOCGSTAMPNS:
+ rc = sock_get_timestampns(sk, argp);
+ break;
/* Routing */
case SIOCADDRT:
case SIOCDELRT:
}
skb_push(skb, minheadroom);
if (brvcc->encaps == e_llc)
- memcpy(skb->data, llc_oui_pid_pad, 10);
+ skb_copy_to_linear_data(skb, llc_oui_pid_pad, 10);
else
memset(skb->data, 0, 2);
#endif /* FASTER_VERSION */
{
if (brvcc->filter.netmask == 0)
return 0; /* no filter in place */
- if (type == __constant_htons(ETH_P_IP) &&
+ if (type == htons(ETH_P_IP) &&
(((struct iphdr *) (skb->data))->daddr & brvcc->filter.
netmask) == brvcc->filter.prefix)
return 0;
- if (type == __constant_htons(ETH_P_ARP))
+ if (type == htons(ETH_P_ARP))
return 0;
/* TODO: we should probably filter ARPs too.. don't want to have
* them returning values that don't make sense, or is that ok?
/* FIXME: tcpdump shows that pointer to mac header is 2 bytes earlier,
than should be. What else should I set? */
skb_pull(skb, plen);
- skb->mac.raw = ((char *) (skb->data)) - ETH_HLEN;
+ skb_set_mac_header(skb, -ETH_HLEN);
skb->pkt_type = PACKET_HOST;
#ifdef CONFIG_BR2684_FAST_TRANS
skb->protocol = ((u16 *) skb->data)[-1];
return;
}
ATM_SKB(skb)->vcc = vcc;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
if (!clip_vcc->encap
|| skb->len < RFC1483LLC_LEN
|| memcmp(skb->data, llc_oui, sizeof (llc_oui)))
.ops = &atmarpd_dev_ops,
.type = "arpd",
.number = 999,
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(atmarpd_dev.lock)
};
case SIOCGSTAMP: /* borrowed from IP */
error = sock_get_timestamp(sk, argp);
goto done;
+ case SIOCGSTAMPNS: /* borrowed from IP */
+ error = sock_get_timestampns(sk, argp);
+ goto done;
case ATM_SETSC:
printk(KERN_WARNING "ATM_SETSC is obsolete\n");
error = 0;
}
DPRINTK("skbuff head:%lx data:%lx tail:%lx end:%lx\n",
- (long)skb->head, (long)skb->data, (long)skb->tail,
- (long)skb->end);
+ (long)skb->head, (long)skb->data, (long)skb_tail_pointer(skb),
+ (long)skb_end_pointer(skb));
#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
if (memcmp(skb->data, bridge_ula_lec, sizeof(bridge_ula_lec)) == 0)
lec_handle_bridge(skb, dev);
break;
}
skb2->len = sizeof(struct atmlec_msg);
- memcpy(skb2->data, mesg,
- sizeof(struct atmlec_msg));
+ skb_copy_to_linear_data(skb2, mesg,
+ sizeof(*mesg));
atm_force_charge(priv->lecd, skb2->truesize);
sk = sk_atm(priv->lecd);
skb_queue_tail(&sk->sk_receive_queue, skb2);
.ops = &lecdev_ops,
.type = "lec",
.number = 999, /* dummy device number */
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(lecatm_dev.lock)
};
/*
if (!hlist_empty(&priv->lec_arp_empty_ones)) {
lec_arp_check_empties(priv, vcc, skb);
}
- skb->dev = dev;
skb_pull(skb, 2); /* skip lec_id */
#ifdef CONFIG_TR
if (priv->is_trdev)
if (skb == NULL)
return -1;
skb->len = *sizeoftlvs;
- memcpy(skb->data, *tlvs, *sizeoftlvs);
+ skb_copy_to_linear_data(skb, *tlvs, *sizeoftlvs);
retval = send_to_lecd(priv, l_arp_xmt, dst_mac, NULL, skb);
}
return retval;
if (skb == NULL)
return 0;
skb->len = sizeoftlvs;
- memcpy(skb->data, tlvs, sizeoftlvs);
+ skb_copy_to_linear_data(skb, tlvs, sizeoftlvs);
retval = send_to_lecd(priv, l_associate_req, NULL, NULL, skb);
if (retval != 0)
printk("lec.c: lane2_associate_req() failed\n");
tagged_llc_snap_hdr.tag = entry->ctrl_info.tag;
skb_pull(skb, ETH_HLEN); /* get rid of Eth header */
skb_push(skb, sizeof(tagged_llc_snap_hdr)); /* add LLC/SNAP header */
- memcpy(skb->data, &tagged_llc_snap_hdr, sizeof(tagged_llc_snap_hdr));
+ skb_copy_to_linear_data(skb, &tagged_llc_snap_hdr,
+ sizeof(tagged_llc_snap_hdr));
} else {
skb_pull(skb, ETH_HLEN); /* get rid of Eth header */
skb_push(skb, sizeof(struct llc_snap_hdr)); /* add LLC/SNAP header + tag */
- memcpy(skb->data, &llc_snap_mpoa_data, sizeof(struct llc_snap_hdr));
+ skb_copy_to_linear_data(skb, &llc_snap_mpoa_data,
+ sizeof(struct llc_snap_hdr));
}
atomic_add(skb->truesize, &sk_atm(entry->shortcut)->sk_wmem_alloc);
return;
}
skb_push(new_skb, eg->ctrl_info.DH_length); /* add MAC header */
- memcpy(new_skb->data, eg->ctrl_info.DLL_header, eg->ctrl_info.DH_length);
+ skb_copy_to_linear_data(new_skb, eg->ctrl_info.DLL_header,
+ eg->ctrl_info.DH_length);
new_skb->protocol = eth_type_trans(new_skb, dev);
- new_skb->nh.raw = new_skb->data;
+ skb_reset_network_header(new_skb);
- eg->latest_ip_addr = new_skb->nh.iph->saddr;
+ eg->latest_ip_addr = ip_hdr(new_skb)->saddr;
eg->packets_rcvd++;
mpc->eg_ops->put(eg);
.ops = &mpc_ops,
.type = "mpc",
.number = 42,
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(mpc_dev.lock)
/* members not explicitly initialised will be 0 */
};
if (skb == NULL)
return -ENOMEM;
skb_put(skb, sizeof(struct k_message));
- memcpy(skb->data, mesg, sizeof(struct k_message));
+ skb_copy_to_linear_data(skb, mesg, sizeof(*mesg));
atm_force_charge(mpc->mpoad_vcc, skb->truesize);
sk = sk_atm(mpc->mpoad_vcc);
.ops = &sigd_dev_ops,
.type = "sig",
.number = 999,
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(sigd_dev.lock)
};
switch (sk->sk_state) {
case TCP_SYN_SENT: /* still trying */
err = -EINPROGRESS;
- goto out;
+ goto out_release;
case TCP_ESTABLISHED: /* connection established */
sock->state = SS_CONNECTED;
- goto out;
+ goto out_release;
case TCP_CLOSE: /* connection refused */
sock->state = SS_UNCONNECTED;
err = -ECONNREFUSED;
- goto out;
+ goto out_release;
}
}
if (sk->sk_state == TCP_ESTABLISHED && sk->sk_type == SOCK_SEQPACKET) {
err = -EISCONN; /* No reconnect on a seqpacket socket */
- goto out;
+ goto out_release;
}
sk->sk_state = TCP_CLOSE;
/* Valid number of digipeaters ? */
if (fsa->fsa_ax25.sax25_ndigis < 1 || fsa->fsa_ax25.sax25_ndigis > AX25_MAX_DIGIS) {
err = -EINVAL;
- goto out;
+ goto out_release;
}
if ((digi = kmalloc(sizeof(ax25_digi), GFP_KERNEL)) == NULL) {
err = -ENOBUFS;
- goto out;
+ goto out_release;
}
digi->ndigi = fsa->fsa_ax25.sax25_ndigis;
current->comm);
if ((err = ax25_rt_autobind(ax25, &fsa->fsa_ax25.sax25_call)) < 0) {
kfree(digi);
- goto out;
+ goto out_release;
}
ax25_fillin_cb(ax25, ax25->ax25_dev);
if (ax25->ax25_dev == NULL) {
kfree(digi);
err = -EHOSTUNREACH;
- goto out;
+ goto out_release;
}
}
kfree(digi);
err = -EADDRINUSE; /* Already such a connection */
ax25_cb_put(ax25t);
- goto out;
+ goto out_release;
}
ax25->dest_addr = fsa->fsa_ax25.sax25_call;
if (sk->sk_type != SOCK_SEQPACKET) {
sock->state = SS_CONNECTED;
sk->sk_state = TCP_ESTABLISHED;
- goto out;
+ goto out_release;
}
/* Move to connecting socket, ax.25 lapb WAIT_UA.. */
/* Now the loop */
if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) {
err = -EINPROGRESS;
- goto out;
+ goto out_release;
}
if (sk->sk_state == TCP_SYN_SENT) {
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
+ DEFINE_WAIT(wait);
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
+ prepare_to_wait(sk->sk_sleep, &wait,
+ TASK_INTERRUPTIBLE);
if (sk->sk_state != TCP_SYN_SENT)
break;
- set_current_state(TASK_INTERRUPTIBLE);
- release_sock(sk);
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+
+ if (err)
+ goto out_release;
}
if (sk->sk_state != TCP_ESTABLISHED) {
/* Not in ABM, not in WAIT_UA -> failed */
sock->state = SS_UNCONNECTED;
err = sock_error(sk); /* Always set at this point */
- goto out;
+ goto out_release;
}
sock->state = SS_CONNECTED;
- err=0;
-out:
+ err = 0;
+out_release:
release_sock(sk);
return err;
}
-
static int ax25_accept(struct socket *sock, struct socket *newsock, int flags)
{
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
struct sk_buff *skb;
struct sock *newsk;
+ DEFINE_WAIT(wait);
struct sock *sk;
int err = 0;
* The read queue this time is holding sockets ready to use
* hooked into the SABM we saved
*/
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
+ prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
skb = skb_dequeue(&sk->sk_receive_queue);
if (skb)
break;
- release_sock(sk);
- current->state = TASK_INTERRUPTIBLE;
if (flags & O_NONBLOCK) {
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -EWOULDBLOCK;
+ err = -EWOULDBLOCK;
+ break;
}
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+
+ if (err)
+ goto out;
newsk = skb->sk;
newsk->sk_socket = newsock;
struct sockaddr_ax25 sax;
struct sk_buff *skb;
ax25_digi dtmp, *dp;
- unsigned char *asmptr;
ax25_cb *ax25;
size_t size;
int lv, err, addr_len = msg->msg_namelen;
goto out;
}
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* Add the PID if one is not supplied by the user in the skb */
- if (!ax25->pidincl) {
- asmptr = skb_push(skb, 1);
- *asmptr = sk->sk_protocol;
- }
+ if (!ax25->pidincl)
+ *skb_push(skb, 1) = sk->sk_protocol;
SOCK_DEBUG(sk, "AX.25: Transmitting buffer\n");
goto out;
}
- asmptr = skb_push(skb, 1 + ax25_addr_size(dp));
+ skb_push(skb, 1 + ax25_addr_size(dp));
SOCK_DEBUG(sk, "Building AX.25 Header (dp=%p).\n", dp);
SOCK_DEBUG(sk, "Num digipeaters=%d\n", dp->ndigi);
/* Build an AX.25 header */
- asmptr += (lv = ax25_addr_build(asmptr, &ax25->source_addr,
- &sax.sax25_call, dp,
- AX25_COMMAND, AX25_MODULUS));
+ lv = ax25_addr_build(skb->data, &ax25->source_addr, &sax.sax25_call,
+ dp, AX25_COMMAND, AX25_MODULUS);
SOCK_DEBUG(sk, "Built header (%d bytes)\n",lv);
- skb->h.raw = asmptr;
+ skb_set_transport_header(skb, lv);
- SOCK_DEBUG(sk, "base=%p pos=%p\n", skb->data, asmptr);
+ SOCK_DEBUG(sk, "base=%p pos=%p\n",
+ skb->data, skb_transport_header(skb));
- *asmptr = AX25_UI;
+ *skb_transport_header(skb) = AX25_UI;
/* Datagram frames go straight out of the door as UI */
ax25_queue_xmit(skb, ax25->ax25_dev->dev);
if (!ax25_sk(sk)->pidincl)
skb_pull(skb, 1); /* Remove PID */
- skb->h.raw = skb->data;
- copied = skb->len;
+ skb_reset_transport_header(skb);
+ copied = skb->len;
if (copied > size) {
copied = size;
struct sockaddr_ax25 *sax = (struct sockaddr_ax25 *)msg->msg_name;
ax25_digi digi;
ax25_address src;
+ const unsigned char *mac = skb_mac_header(skb);
- ax25_addr_parse(skb->mac.raw+1, skb->data-skb->mac.raw-1, &src, NULL, &digi, NULL, NULL);
-
+ ax25_addr_parse(mac + 1, skb->data - mac - 1, &src, NULL,
+ &digi, NULL, NULL);
sax->sax25_family = AF_AX25;
/* We set this correctly, even though we may not let the
application know the digi calls further down (because it
res = sock_get_timestamp(sk, argp);
break;
+ case SIOCGSTAMPNS:
+ res = sock_get_timestampns(sk, argp);
+ break;
+
case SIOCAX25ADDUID: /* Add a uid to the uid/call map table */
case SIOCAX25DELUID: /* Delete a uid from the uid/call map table */
case SIOCAX25GETUID: {
if ((skb = alloc_skb(2, GFP_ATOMIC)) == NULL)
return;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
p = skb_put(skb, 2);
*p++ = cmd;
skb_reserve(skbn, AX25_MAX_HEADER_LEN);
skbn->dev = ax25->ax25_dev->dev;
- skbn->h.raw = skbn->data;
- skbn->nh.raw = skbn->data;
+ skb_reset_network_header(skbn);
+ skb_reset_transport_header(skbn);
/* Copy data from the fragments */
while ((skbo = skb_dequeue(&ax25->frag_queue)) != NULL) {
- memcpy(skb_put(skbn, skbo->len), skbo->data, skbo->len);
+ skb_copy_from_linear_data(skbo,
+ skb_put(skbn, skbo->len),
+ skbo->len);
kfree_skb(skbo);
}
}
skb_pull(skb, 1); /* Remove PID */
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
skb->dev = ax25->ax25_dev->dev;
skb->pkt_type = PACKET_HOST;
skb->protocol = htons(ETH_P_IP);
* Process the AX.25/LAPB frame.
*/
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL) {
kfree_skb(skb);
/* UI frame - bypass LAPB processing */
if ((*skb->data & ~0x10) == AX25_UI && dp.lastrepeat + 1 == dp.ndigi) {
- skb->h.raw = skb->data + 2; /* skip control and pid */
+ skb_set_transport_header(skb, 2); /* skip control and pid */
ax25_send_to_raw(&dest, skb, skb->data[1]);
switch (skb->data[1]) {
case AX25_P_IP:
skb_pull(skb,2); /* drop PID/CTRL */
- skb->h.raw = skb->data;
- skb->nh.raw = skb->data;
+ skb_reset_transport_header(skb);
+ skb_reset_network_header(skb);
skb->dev = dev;
skb->pkt_type = PACKET_HOST;
skb->protocol = htons(ETH_P_IP);
case AX25_P_ARP:
skb_pull(skb,2);
- skb->h.raw = skb->data;
- skb->nh.raw = skb->data;
+ skb_reset_transport_header(skb);
+ skb_reset_network_header(skb);
skb->dev = dev;
skb->pkt_type = PACKET_HOST;
skb->protocol = htons(ETH_P_ARP);
digipeat = route->digipeat;
dev = route->dev;
ip_mode = route->ip_mode;
- };
+ }
if (dev == NULL)
dev = skb->dev;
src_c = *(ax25_address *)(bp + 8);
skb_pull(ourskb, AX25_HEADER_LEN - 1); /* Keep PID */
- ourskb->nh.raw = ourskb->data;
+ skb_reset_network_header(ourskb);
ax25=ax25_send_frame(
ourskb,
if (ka9qfrag == 1) {
skb_reserve(skbn, frontlen + 2);
- skbn->nh.raw = skbn->data + (skb->nh.raw - skb->data);
- memcpy(skb_put(skbn, len), skb->data, len);
+ skb_set_network_header(skbn,
+ skb_network_offset(skb));
+ skb_copy_from_linear_data(skb, skb_put(skbn, len), len);
p = skb_push(skbn, 2);
*p++ = AX25_P_SEGMENT;
}
} else {
skb_reserve(skbn, frontlen + 1);
- skbn->nh.raw = skbn->data + (skb->nh.raw - skb->data);
- memcpy(skb_put(skbn, len), skb->data, len);
+ skb_set_network_header(skbn,
+ skb_network_offset(skb));
+ skb_copy_from_linear_data(skb, skb_put(skbn, len), len);
p = skb_push(skbn, 1);
*p = AX25_P_TEXT;
}
if (skb == NULL)
return;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
if (ax25->modulus == AX25_MODULUS) {
frame = skb_push(skb, 1);
skb_reserve(skb, ax25->ax25_dev->dev->hard_header_len);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* Assume a response - address structure for DTE */
if (ax25->modulus == AX25_MODULUS) {
return; /* Next SABM will get DM'd */
skb_reserve(skb, dev->hard_header_len);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
ax25_digi_invert(digi, &retdigi);
copied = len;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
skb_free_datagram(sk, skb);
return 0;
}
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
/* Verify and pull out header */
if (!skb_pull(skb, __bnep_rx_hlen[type & BNEP_TYPE_MASK]))
case BNEP_COMPRESSED_SRC_ONLY:
memcpy(__skb_put(nskb, ETH_ALEN), s->eh.h_dest, ETH_ALEN);
- memcpy(__skb_put(nskb, ETH_ALEN), skb->mac.raw, ETH_ALEN);
+ memcpy(__skb_put(nskb, ETH_ALEN), skb_mac_header(skb), ETH_ALEN);
put_unaligned(s->eh.h_proto, (__be16 *) __skb_put(nskb, 2));
break;
case BNEP_COMPRESSED_DST_ONLY:
- memcpy(__skb_put(nskb, ETH_ALEN), skb->mac.raw, ETH_ALEN);
- memcpy(__skb_put(nskb, ETH_ALEN + 2), s->eh.h_source, ETH_ALEN + 2);
+ memcpy(__skb_put(nskb, ETH_ALEN), skb_mac_header(skb),
+ ETH_ALEN);
+ memcpy(__skb_put(nskb, ETH_ALEN + 2), s->eh.h_source,
+ ETH_ALEN + 2);
break;
case BNEP_GENERAL:
- memcpy(__skb_put(nskb, ETH_ALEN * 2), skb->mac.raw, ETH_ALEN * 2);
+ memcpy(__skb_put(nskb, ETH_ALEN * 2), skb_mac_header(skb),
+ ETH_ALEN * 2);
put_unaligned(s->eh.h_proto, (__be16 *) __skb_put(nskb, 2));
break;
}
- memcpy(__skb_put(nskb, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, __skb_put(nskb, skb->len), skb->len);
kfree_skb(skb);
s->stats.rx_packets++;
- nskb->dev = dev;
nskb->ip_summed = CHECKSUM_NONE;
nskb->protocol = eth_type_trans(nskb, dev);
netif_rx_ni(nskb);
}
if (skb && (skb->len > 0))
- memcpy(skb_put(nskb, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(nskb, skb->len), skb->len);
memcpy(skb_put(nskb, count), buf, count);
hdr[2] = size >> 8;
}
- memcpy(skb_put(nskb, size), skb->data, size);
+ skb_copy_from_linear_data(skb, skb_put(nskb, size), size);
skb_pull(skb, size);
if (skb->len > 0) {
inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
cp.pscan_rep_mode = ie->data.pscan_rep_mode;
cp.pscan_mode = ie->data.pscan_mode;
- cp.clock_offset = ie->data.clock_offset | __cpu_to_le16(0x8000);
+ cp.clock_offset = ie->data.clock_offset | cpu_to_le16(0x8000);
memcpy(conn->dev_class, ie->data.dev_class, 3);
}
- cp.pkt_type = __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK);
+ cp.pkt_type = cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK);
if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER))
cp.role_switch = 0x01;
else
conn->state = BT_DISCONN;
- cp.handle = __cpu_to_le16(conn->handle);
+ cp.handle = cpu_to_le16(conn->handle);
cp.reason = reason;
hci_send_cmd(conn->hdev, OGF_LINK_CTL,
OCF_DISCONNECT, sizeof(cp), &cp);
conn->state = BT_CONNECT;
conn->out = 1;
- cp.pkt_type = __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
- cp.handle = __cpu_to_le16(handle);
+ cp.pkt_type = cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
+ cp.handle = cpu_to_le16(handle);
hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ADD_SCO, sizeof(cp), &cp);
}
if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
struct hci_cp_auth_requested cp;
- cp.handle = __cpu_to_le16(conn->handle);
+ cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_AUTH_REQUESTED, sizeof(cp), &cp);
}
return 0;
if (hci_conn_auth(conn)) {
struct hci_cp_set_conn_encrypt cp;
- cp.handle = __cpu_to_le16(conn->handle);
+ cp.handle = cpu_to_le16(conn->handle);
cp.encrypt = 1;
hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp);
}
if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
struct hci_cp_change_conn_link_key cp;
- cp.handle = __cpu_to_le16(conn->handle);
+ cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_LINK_KEY, sizeof(cp), &cp);
}
return 0;
if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
struct hci_cp_exit_sniff_mode cp;
- cp.handle = __cpu_to_le16(conn->handle);
+ cp.handle = cpu_to_le16(conn->handle);
hci_send_cmd(hdev, OGF_LINK_POLICY,
OCF_EXIT_SNIFF_MODE, sizeof(cp), &cp);
}
if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
struct hci_cp_sniff_subrate cp;
- cp.handle = __cpu_to_le16(conn->handle);
- cp.max_latency = __constant_cpu_to_le16(0);
- cp.min_remote_timeout = __constant_cpu_to_le16(0);
- cp.min_local_timeout = __constant_cpu_to_le16(0);
+ cp.handle = cpu_to_le16(conn->handle);
+ cp.max_latency = cpu_to_le16(0);
+ cp.min_remote_timeout = cpu_to_le16(0);
+ cp.min_local_timeout = cpu_to_le16(0);
hci_send_cmd(hdev, OGF_LINK_POLICY,
OCF_SNIFF_SUBRATE, sizeof(cp), &cp);
}
if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
struct hci_cp_sniff_mode cp;
- cp.handle = __cpu_to_le16(conn->handle);
- cp.max_interval = __cpu_to_le16(hdev->sniff_max_interval);
- cp.min_interval = __cpu_to_le16(hdev->sniff_min_interval);
- cp.attempt = __constant_cpu_to_le16(4);
- cp.timeout = __constant_cpu_to_le16(1);
+ cp.handle = cpu_to_le16(conn->handle);
+ cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
+ cp.min_interval = cpu_to_le16(hdev->sniff_min_interval);
+ cp.attempt = cpu_to_le16(4);
+ cp.timeout = cpu_to_le16(1);
hci_send_cmd(hdev, OGF_LINK_POLICY,
OCF_SNIFF_MODE, sizeof(cp), &cp);
}
default:
err = -ETIMEDOUT;
break;
- };
+ }
hdev->req_status = hdev->req_result = 0;
/* Host buffer size */
{
struct hci_cp_host_buffer_size cp;
- cp.acl_mtu = __cpu_to_le16(HCI_MAX_ACL_SIZE);
+ cp.acl_mtu = cpu_to_le16(HCI_MAX_ACL_SIZE);
cp.sco_mtu = HCI_MAX_SCO_SIZE;
- cp.acl_max_pkt = __cpu_to_le16(0xffff);
- cp.sco_max_pkt = __cpu_to_le16(0xffff);
+ cp.acl_max_pkt = cpu_to_le16(0xffff);
+ cp.sco_max_pkt = cpu_to_le16(0xffff);
hci_send_cmd(hdev, OGF_HOST_CTL, OCF_HOST_BUFFER_SIZE, sizeof(cp), &cp);
}
#endif
}
/* Page timeout ~20 secs */
- param = __cpu_to_le16(0x8000);
+ param = cpu_to_le16(0x8000);
hci_send_cmd(hdev, OGF_HOST_CTL, OCF_WRITE_PG_TIMEOUT, 2, ¶m);
/* Connection accept timeout ~20 secs */
- param = __cpu_to_le16(0x7d00);
+ param = cpu_to_le16(0x7d00);
hci_send_cmd(hdev, OGF_HOST_CTL, OCF_WRITE_CA_TIMEOUT, 2, ¶m);
}
}
hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE);
- hdr->opcode = __cpu_to_le16(hci_opcode_pack(ogf, ocf));
+ hdr->opcode = cpu_to_le16(hci_opcode_pack(ogf, ocf));
hdr->plen = plen;
if (plen)
hdr = (void *) hdev->sent_cmd->data;
- if (hdr->opcode != __cpu_to_le16(hci_opcode_pack(ogf, ocf)))
+ if (hdr->opcode != cpu_to_le16(hci_opcode_pack(ogf, ocf)))
return NULL;
BT_DBG("%s ogf 0x%x ocf 0x%x", hdev->name, ogf, ocf);
struct hci_acl_hdr *hdr;
int len = skb->len;
- hdr = (struct hci_acl_hdr *) skb_push(skb, HCI_ACL_HDR_SIZE);
- hdr->handle = __cpu_to_le16(hci_handle_pack(handle, flags));
- hdr->dlen = __cpu_to_le16(len);
-
- skb->h.raw = (void *) hdr;
+ skb_push(skb, HCI_ACL_HDR_SIZE);
+ skb_reset_transport_header(skb);
+ hdr = (struct hci_acl_hdr *)skb_transport_header(skb);
+ hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags));
+ hdr->dlen = cpu_to_le16(len);
}
int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags)
return -EINVAL;
}
- hdr.handle = __cpu_to_le16(conn->handle);
+ hdr.handle = cpu_to_le16(conn->handle);
hdr.dlen = skb->len;
- skb->h.raw = skb_push(skb, HCI_SCO_HDR_SIZE);
- memcpy(skb->h.raw, &hdr, HCI_SCO_HDR_SIZE);
+ skb_push(skb, HCI_SCO_HDR_SIZE);
+ skb_reset_transport_header(skb);
+ memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);
skb->dev = (void *) hdev;
bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
case HCI_SCODATA_PKT:
kfree_skb(skb);
continue;
- };
+ }
}
/* Process frame */
if (conn->type == ACL_LINK && hdev->link_policy) {
struct hci_cp_write_link_policy cp;
cp.handle = ev->handle;
- cp.policy = __cpu_to_le16(hdev->link_policy);
+ cp.policy = cpu_to_le16(hdev->link_policy);
hci_send_cmd(hdev, OGF_LINK_POLICY,
OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
}
struct hci_cp_change_conn_ptype cp;
cp.handle = ev->handle;
cp.pkt_type = (conn->type == ACL_LINK) ?
- __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
- __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
+ cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
+ cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
hci_send_cmd(hdev, OGF_LINK_CTL,
OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
if (!ev->status) {
struct hci_cp_set_conn_encrypt cp;
- cp.handle = __cpu_to_le16(conn->handle);
+ cp.handle = cpu_to_le16(conn->handle);
cp.encrypt = 1;
hci_send_cmd(conn->hdev, OGF_LINK_CTL,
OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp);
copied = len;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
hci_sock_cmsg(sk, msg, skb);
sk->sk_state = BT_DISCONN;
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
- req.dcid = __cpu_to_le16(l2cap_pi(sk)->dcid);
- req.scid = __cpu_to_le16(l2cap_pi(sk)->scid);
+ req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
l2cap_send_cmd(conn, l2cap_get_ident(conn),
L2CAP_DISCONN_REQ, sizeof(req), &req);
} else {
if (sk->sk_type == SOCK_SEQPACKET) {
struct l2cap_conn_req req;
l2cap_pi(sk)->ident = l2cap_get_ident(conn);
- req.scid = __cpu_to_le16(l2cap_pi(sk)->scid);
+ req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
L2CAP_CONN_REQ, sizeof(req), &req);
/* Create L2CAP header */
lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
- lh->cid = __cpu_to_le16(l2cap_pi(sk)->dcid);
- lh->len = __cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+ lh->cid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
if (sk->sk_type == SOCK_DGRAM)
put_unaligned(l2cap_pi(sk)->psm, (u16 *) skb_put(skb, 2));
} else if (sk->sk_state == BT_CONNECT) {
struct l2cap_conn_req req;
l2cap_pi(sk)->ident = l2cap_get_ident(conn);
- req.scid = __cpu_to_le16(l2cap_pi(sk)->scid);
+ req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
l2cap_send_cmd(conn, l2cap_pi(sk)->ident, L2CAP_CONN_REQ, sizeof(req), &req);
}
return NULL;
lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
- lh->len = __cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
- lh->cid = __cpu_to_le16(0x0001);
+ lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
+ lh->cid = cpu_to_le16(0x0001);
cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
cmd->code = code;
cmd->ident = ident;
- cmd->len = __cpu_to_le16(dlen);
+ cmd->len = cpu_to_le16(dlen);
if (dlen) {
count -= L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE;
break;
case 2:
- *((u16 *) opt->val) = __cpu_to_le16(val);
+ *((u16 *) opt->val) = cpu_to_le16(val);
break;
case 4:
- *((u32 *) opt->val) = __cpu_to_le32(val);
+ *((u32 *) opt->val) = cpu_to_le32(val);
break;
default:
//if (flush_to != L2CAP_DEFAULT_FLUSH_TO)
// l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, 2, pi->flush_to);
- req->dcid = __cpu_to_le16(pi->dcid);
- req->flags = __cpu_to_le16(0);
+ req->dcid = cpu_to_le16(pi->dcid);
+ req->flags = cpu_to_le16(0);
return ptr - data;
}
else
flags = 0x0001;
- rsp->scid = __cpu_to_le16(l2cap_pi(sk)->dcid);
- rsp->result = __cpu_to_le16(result ? *result : 0);
- rsp->flags = __cpu_to_le16(flags);
+ rsp->scid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ rsp->result = cpu_to_le16(result ? *result : 0);
+ rsp->flags = cpu_to_le16(flags);
return ptr - data;
}
bh_unlock_sock(parent);
sendresp:
- rsp.scid = __cpu_to_le16(scid);
- rsp.dcid = __cpu_to_le16(dcid);
- rsp.result = __cpu_to_le16(result);
- rsp.status = __cpu_to_le16(status);
+ rsp.scid = cpu_to_le16(scid);
+ rsp.dcid = cpu_to_le16(dcid);
+ rsp.result = cpu_to_le16(result);
+ rsp.status = cpu_to_le16(status);
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_RSP, sizeof(rsp), &rsp);
return 0;
}
l2cap_sock_set_timer(sk, HZ * 5);
{
struct l2cap_disconn_req req;
- req.dcid = __cpu_to_le16(l2cap_pi(sk)->dcid);
- req.scid = __cpu_to_le16(l2cap_pi(sk)->scid);
+ req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
l2cap_send_cmd(conn, l2cap_get_ident(conn),
L2CAP_DISCONN_REQ, sizeof(req), &req);
}
if (!(sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid)))
return 0;
- rsp.dcid = __cpu_to_le16(l2cap_pi(sk)->scid);
- rsp.scid = __cpu_to_le16(l2cap_pi(sk)->dcid);
+ rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
+ rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
l2cap_send_cmd(conn, cmd->ident, L2CAP_DISCONN_RSP, sizeof(rsp), &rsp);
sk->sk_shutdown = SHUTDOWN_MASK;
BT_DBG("type 0x%4.4x", type);
- rsp.type = __cpu_to_le16(type);
- rsp.result = __cpu_to_le16(L2CAP_IR_NOTSUPP);
+ rsp.type = cpu_to_le16(type);
+ rsp.result = cpu_to_le16(L2CAP_IR_NOTSUPP);
l2cap_send_cmd(conn, cmd->ident, L2CAP_INFO_RSP, sizeof(rsp), &rsp);
return 0;
BT_DBG("error %d", err);
/* FIXME: Map err to a valid reason */
- rej.reason = __cpu_to_le16(0);
+ rej.reason = cpu_to_le16(0);
l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej);
}
result = L2CAP_CR_SEC_BLOCK;
}
- rsp.scid = __cpu_to_le16(l2cap_pi(sk)->dcid);
- rsp.dcid = __cpu_to_le16(l2cap_pi(sk)->scid);
- rsp.result = __cpu_to_le16(result);
- rsp.status = __cpu_to_le16(0);
+ rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
+ rsp.result = cpu_to_le16(result);
+ rsp.status = cpu_to_le16(0);
l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
L2CAP_CONN_RSP, sizeof(rsp), &rsp);
result = L2CAP_CR_SEC_BLOCK;
}
- rsp.scid = __cpu_to_le16(l2cap_pi(sk)->dcid);
- rsp.dcid = __cpu_to_le16(l2cap_pi(sk)->scid);
- rsp.result = __cpu_to_le16(result);
- rsp.status = __cpu_to_le16(0);
+ rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
+ rsp.result = cpu_to_le16(result);
+ rsp.status = cpu_to_le16(0);
l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
L2CAP_CONN_RSP, sizeof(rsp), &rsp);
if (!(conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC)))
goto drop;
- memcpy(skb_put(conn->rx_skb, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
+ skb->len);
conn->rx_len = len - skb->len;
} else {
BT_DBG("Cont: frag len %d (expecting %d)", skb->len, conn->rx_len);
goto drop;
}
- memcpy(skb_put(conn->rx_skb, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
+ skb->len);
conn->rx_len -= skb->len;
if (!conn->rx_len) {
/* Trim FCS */
skb->len--; skb->tail--;
- fcs = *(u8 *) skb->tail;
+ fcs = *(u8 *)skb_tail_pointer(skb);
if (__check_fcs(skb->data, type, fcs)) {
BT_ERR("bad checksum in packet");
BT_DBG("");
while (!atomic_read(&terminate)) {
+ set_current_state(TASK_INTERRUPTIBLE);
if (!test_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event)) {
/* No pending events. Let's sleep.
* Incoming connections and data will wake us up. */
- set_current_state(TASK_INTERRUPTIBLE);
schedule();
}
+ set_current_state(TASK_RUNNING);
/* Process stuff */
clear_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event);
rfcomm_process_sessions();
}
- set_current_state(TASK_RUNNING);
return;
}
default:
sock_set_flag(sk, SOCK_ZAPPED);
break;
- };
+ }
release_sock(sk);
return -EADDRINUSE;
}
- br_fdb_init();
+ err = br_fdb_init();
+ if (err)
+ goto err_out1;
err = br_netfilter_init();
if (err)
if (err)
goto err_out2;
- br_netlink_init();
+ err = br_netlink_init();
+ if (err)
+ goto err_out3;
+
brioctl_set(br_ioctl_deviceless_stub);
br_handle_frame_hook = br_handle_frame;
br_fdb_put_hook = br_fdb_put;
return 0;
-
+err_out3:
+ unregister_netdevice_notifier(&br_device_notifier);
err_out2:
br_netfilter_fini();
err_out1:
br->statistics.tx_packets++;
br->statistics.tx_bytes += skb->len;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
if (dest[0] & 1)
return 0;
}
-/* Allow setting mac address of pseudo-bridge to be same as
- * any of the bound interfaces
- */
+/* Allow setting mac address to any valid ethernet address. */
static int br_set_mac_address(struct net_device *dev, void *p)
{
struct net_bridge *br = netdev_priv(dev);
struct sockaddr *addr = p;
- struct net_bridge_port *port;
- int err = -EADDRNOTAVAIL;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EINVAL;
spin_lock_bh(&br->lock);
- list_for_each_entry(port, &br->port_list, list) {
- if (!compare_ether_addr(port->dev->dev_addr, addr->sa_data)) {
- br_stp_change_bridge_id(br, addr->sa_data);
- err = 0;
- break;
- }
- }
+ memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+ br_stp_change_bridge_id(br, addr->sa_data);
spin_unlock_bh(&br->lock);
- return err;
+ return 0;
}
static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info)
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/jhash.h>
+#include <linux/random.h>
#include <asm/atomic.h>
+#include <asm/unaligned.h>
#include "br_private.h"
static struct kmem_cache *br_fdb_cache __read_mostly;
static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
const unsigned char *addr);
-void __init br_fdb_init(void)
+static u32 fdb_salt __read_mostly;
+
+int __init br_fdb_init(void)
{
br_fdb_cache = kmem_cache_create("bridge_fdb_cache",
sizeof(struct net_bridge_fdb_entry),
0,
SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (!br_fdb_cache)
+ return -ENOMEM;
+
+ get_random_bytes(&fdb_salt, sizeof(fdb_salt));
+ return 0;
}
void __exit br_fdb_fini(void)
/* if topology_changing then use forward_delay (default 15 sec)
* otherwise keep longer (default 5 minutes)
*/
-static __inline__ unsigned long hold_time(const struct net_bridge *br)
+static inline unsigned long hold_time(const struct net_bridge *br)
{
return br->topology_change ? br->forward_delay : br->ageing_time;
}
-static __inline__ int has_expired(const struct net_bridge *br,
+static inline int has_expired(const struct net_bridge *br,
const struct net_bridge_fdb_entry *fdb)
{
return !fdb->is_static
&& time_before_eq(fdb->ageing_timer + hold_time(br), jiffies);
}
-static __inline__ int br_mac_hash(const unsigned char *mac)
+static inline int br_mac_hash(const unsigned char *mac)
{
- return jhash(mac, ETH_ALEN, 0) & (BR_HASH_SIZE - 1);
+ /* use 1 byte of OUI cnd 3 bytes of NIC */
+ u32 key = get_unaligned((u32 *)(mac + 2));
+ return jhash_1word(key, fdb_salt) & (BR_HASH_SIZE - 1);
}
-static __inline__ void fdb_delete(struct net_bridge_fdb_entry *f)
+static inline void fdb_delete(struct net_bridge_fdb_entry *f)
{
hlist_del_rcu(&f->hlist);
br_fdb_put(f);
mod_timer(&br->gc_timer, jiffies + HZ/10);
}
+/* Completely flush all dynamic entries in forwarding database.*/
+void br_fdb_flush(struct net_bridge *br)
+{
+ int i;
+ spin_lock_bh(&br->hash_lock);
+ for (i = 0; i < BR_HASH_SIZE; i++) {
+ struct net_bridge_fdb_entry *f;
+ struct hlist_node *h, *n;
+ hlist_for_each_entry_safe(f, h, n, &br->hash[i], hlist) {
+ if (!f->is_static)
+ fdb_delete(f);
+ }
+ }
+ spin_unlock_bh(&br->hash_lock);
+}
+
+/* Flush all entries refering to a specific port.
+ * if do_all is set also flush static entries
+ */
void br_fdb_delete_by_port(struct net_bridge *br,
const struct net_bridge_port *p,
int do_all)
indev = skb->dev;
skb->dev = to->dev;
- skb->ip_summed = CHECKSUM_NONE;
+ skb_forward_csum(skb);
NF_HOOK(PF_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev,
br_forward_finish);
br_stp_disable_port(p);
spin_unlock_bh(&br->lock);
+ br_ifinfo_notify(RTM_DELLINK, p);
+
br_fdb_delete_by_port(br, p, 1);
list_del_rcu(&p->list);
memcpy(br->group_addr, br_group_address, ETH_ALEN);
br->feature_mask = dev->features;
- br->stp_enabled = 0;
+ br->stp_enabled = BR_NO_STP;
br->designated_root = br->bridge_id;
br->root_path_cost = 0;
br->root_port = 0;
br_stp_enable_port(p);
spin_unlock_bh(&br->lock);
+ br_ifinfo_notify(RTM_NEWLINK, p);
+
dev_set_mtu(br->dev, br_min_mtu(br));
kobject_uevent(&p->kobj, KOBJ_ADD);
*/
static inline int is_link_local(const unsigned char *dest)
{
- return memcmp(dest, br_group_address, 5) == 0 && (dest[5] & 0xf0) == 0;
+ const u16 *a = (const u16 *) dest;
+ static const u16 *const b = (const u16 *const ) br_group_address;
+ static const u16 m = __constant_cpu_to_be16(0xfff0);
+
+ return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | ((a[2] ^ b[2]) & m)) == 0;
}
/*
* Called via br_handle_frame_hook.
- * Return 0 if *pskb should be processed furthur
- * 1 if *pskb is handled
+ * Return NULL if skb is handled
* note: already called with rcu_read_lock (preempt_disabled)
*/
-int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb)
+struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb)
{
- struct sk_buff *skb = *pskb;
const unsigned char *dest = eth_hdr(skb)->h_dest;
if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
- goto err;
+ goto drop;
if (unlikely(is_link_local(dest))) {
- skb->pkt_type = PACKET_HOST;
- return NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev,
- NULL, br_handle_local_finish) != 0;
+ /* Pause frames shouldn't be passed up by driver anyway */
+ if (skb->protocol == htons(ETH_P_PAUSE))
+ goto drop;
+
+ /* Process STP BPDU's through normal netif_receive_skb() path */
+ if (p->br->stp_enabled != BR_NO_STP) {
+ if (NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev,
+ NULL, br_handle_local_finish))
+ return NULL;
+ else
+ return skb;
+ }
}
- if (p->state == BR_STATE_FORWARDING || p->state == BR_STATE_LEARNING) {
+ switch (p->state) {
+ case BR_STATE_FORWARDING:
+
if (br_should_route_hook) {
- if (br_should_route_hook(pskb))
- return 0;
- skb = *pskb;
+ if (br_should_route_hook(&skb))
+ return skb;
dest = eth_hdr(skb)->h_dest;
}
-
+ /* fall through */
+ case BR_STATE_LEARNING:
if (!compare_ether_addr(p->br->dev->dev_addr, dest))
skb->pkt_type = PACKET_HOST;
NF_HOOK(PF_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
br_handle_frame_finish);
- return 1;
+ break;
+ default:
+drop:
+ kfree_skb(skb);
}
-
-err:
- kfree_skb(skb);
- return 1;
+ return NULL;
}
b.topology_change = br->topology_change;
b.topology_change_detected = br->topology_change_detected;
b.root_port = br->root_port;
- b.stp_enabled = br->stp_enabled;
+
+ b.stp_enabled = (br->stp_enabled != BR_NO_STP);
b.ageing_time = jiffies_to_clock_t(br->ageing_time);
b.hello_timer_value = br_timer_value(&br->hello_timer);
b.tcn_timer_value = br_timer_value(&br->tcn_timer);
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- br->stp_enabled = args[1]?1:0;
+ br_stp_set_enabled(br, args[1]);
return 0;
case BRCTL_SET_BRIDGE_PRIORITY:
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
+#include <linux/if_pppox.h>
+#include <linux/ppp_defs.h>
#include <linux/netfilter_bridge.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#define skb_origaddr(skb) (((struct bridge_skb_cb *) \
(skb->nf_bridge->data))->daddr.ipv4)
-#define store_orig_dstaddr(skb) (skb_origaddr(skb) = (skb)->nh.iph->daddr)
-#define dnat_took_place(skb) (skb_origaddr(skb) != (skb)->nh.iph->daddr)
+#define store_orig_dstaddr(skb) (skb_origaddr(skb) = ip_hdr(skb)->daddr)
+#define dnat_took_place(skb) (skb_origaddr(skb) != ip_hdr(skb)->daddr)
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *brnf_sysctl_header;
static int brnf_call_ip6tables __read_mostly = 1;
static int brnf_call_arptables __read_mostly = 1;
static int brnf_filter_vlan_tagged __read_mostly = 1;
+static int brnf_filter_pppoe_tagged __read_mostly = 1;
#else
#define brnf_filter_vlan_tagged 1
+#define brnf_filter_pppoe_tagged 1
#endif
static inline __be16 vlan_proto(const struct sk_buff *skb)
vlan_proto(skb) == htons(ETH_P_ARP) && \
brnf_filter_vlan_tagged)
+static inline __be16 pppoe_proto(const struct sk_buff *skb)
+{
+ return *((__be16 *)(skb_mac_header(skb) + ETH_HLEN +
+ sizeof(struct pppoe_hdr)));
+}
+
+#define IS_PPPOE_IP(skb) \
+ (skb->protocol == htons(ETH_P_PPP_SES) && \
+ pppoe_proto(skb) == htons(PPP_IP) && \
+ brnf_filter_pppoe_tagged)
+
+#define IS_PPPOE_IPV6(skb) \
+ (skb->protocol == htons(ETH_P_PPP_SES) && \
+ pppoe_proto(skb) == htons(PPP_IPV6) && \
+ brnf_filter_pppoe_tagged)
+
/* We need these fake structures to make netfilter happy --
* lots of places assume that skb->dst != NULL, which isn't
* all that unreasonable.
if (skb->protocol == htons(ETH_P_8021Q))
header_size += VLAN_HLEN;
+ else if (skb->protocol == htons(ETH_P_PPP_SES))
+ header_size += PPPOE_SES_HLEN;
- memcpy(skb->nf_bridge->data, skb->data - header_size, header_size);
+ skb_copy_from_linear_data_offset(skb, -header_size,
+ skb->nf_bridge->data, header_size);
}
/*
if (skb->protocol == htons(ETH_P_8021Q))
header_size += VLAN_HLEN;
+ else if (skb->protocol == htons(ETH_P_PPP_SES))
+ header_size += PPPOE_SES_HLEN;
err = skb_cow(skb, header_size);
if (err)
return err;
- memcpy(skb->data - header_size, skb->nf_bridge->data, header_size);
+ skb_copy_to_linear_data_offset(skb, -header_size,
+ skb->nf_bridge->data, header_size);
if (skb->protocol == htons(ETH_P_8021Q))
__skb_push(skb, VLAN_HLEN);
+ else if (skb->protocol == htons(ETH_P_PPP_SES))
+ __skb_push(skb, PPPOE_SES_HLEN);
return 0;
}
skb->dev = nf_bridge->physindev;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
- skb->nh.raw -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_push(skb, PPPOE_SES_HLEN);
+ skb->network_header -= PPPOE_SES_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
br_handle_frame_finish, 1);
else {
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(skb, VLAN_HLEN);
- skb->nh.raw += VLAN_HLEN;
+ skb->network_header += VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_pull(skb, PPPOE_SES_HLEN);
+ skb->network_header += PPPOE_SES_HLEN;
}
skb->dst->output(skb);
}
static int br_nf_pre_routing_finish(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
int err;
if (skb->protocol ==
htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
- skb->nh.raw -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
+ } else if(skb->protocol ==
+ htons(ETH_P_PPP_SES)) {
+ skb_push(skb, PPPOE_SES_HLEN);
+ skb->network_header -= PPPOE_SES_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING,
skb, skb->dev, NULL,
skb->dev = nf_bridge->physindev;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
- skb->nh.raw -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_push(skb, PPPOE_SES_HLEN);
+ skb->network_header -= PPPOE_SES_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
br_handle_frame_finish, 1);
/* We only check the length. A bridge shouldn't do any hop-by-hop stuff anyway */
static int check_hbh_len(struct sk_buff *skb)
{
- unsigned char *raw = (u8 *) (skb->nh.ipv6h + 1);
+ unsigned char *raw = (u8 *)(ipv6_hdr(skb) + 1);
u32 pkt_len;
- int off = raw - skb->nh.raw;
+ const unsigned char *nh = skb_network_header(skb);
+ int off = raw - nh;
int len = (raw[1] + 1) << 3;
if ((raw + len) - skb->data > skb_headlen(skb))
len -= 2;
while (len > 0) {
- int optlen = skb->nh.raw[off + 1] + 2;
+ int optlen = nh[off + 1] + 2;
- switch (skb->nh.raw[off]) {
+ switch (nh[off]) {
case IPV6_TLV_PAD0:
optlen = 1;
break;
break;
case IPV6_TLV_JUMBO:
- if (skb->nh.raw[off + 1] != 4 || (off & 3) != 2)
+ if (nh[off + 1] != 4 || (off & 3) != 2)
goto bad;
- pkt_len = ntohl(*(__be32 *) (skb->nh.raw + off + 2));
+ pkt_len = ntohl(*(__be32 *) (nh + off + 2));
if (pkt_len <= IPV6_MAXPLEN ||
- skb->nh.ipv6h->payload_len)
+ ipv6_hdr(skb)->payload_len)
goto bad;
if (pkt_len > skb->len - sizeof(struct ipv6hdr))
goto bad;
if (pskb_trim_rcsum(skb,
pkt_len + sizeof(struct ipv6hdr)))
goto bad;
+ nh = skb_network_header(skb);
break;
default:
if (optlen > len)
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto inhdr_error;
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
if (hdr->version != 6)
goto inhdr_error;
__u32 len;
struct sk_buff *skb = *pskb;
- if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb)) {
+ if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) ||
+ IS_PPPOE_IPV6(skb)) {
#ifdef CONFIG_SYSCTL
if (!brnf_call_ip6tables)
return NF_ACCEPT;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull_rcsum(skb, VLAN_HLEN);
- skb->nh.raw += VLAN_HLEN;
+ skb->network_header += VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_pull_rcsum(skb, PPPOE_SES_HLEN);
+ skb->network_header += PPPOE_SES_HLEN;
}
return br_nf_pre_routing_ipv6(hook, skb, in, out, okfn);
}
return NF_ACCEPT;
#endif
- if (skb->protocol != htons(ETH_P_IP) && !IS_VLAN_IP(skb))
+ if (skb->protocol != htons(ETH_P_IP) && !IS_VLAN_IP(skb) &&
+ !IS_PPPOE_IP(skb))
return NF_ACCEPT;
if ((skb = skb_share_check(*pskb, GFP_ATOMIC)) == NULL)
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull_rcsum(skb, VLAN_HLEN);
- skb->nh.raw += VLAN_HLEN;
+ skb->network_header += VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_pull_rcsum(skb, PPPOE_SES_HLEN);
+ skb->network_header += PPPOE_SES_HLEN;
}
if (!pskb_may_pull(skb, sizeof(struct iphdr)))
goto inhdr_error;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (iph->ihl < 5 || iph->version != 4)
goto inhdr_error;
if (!pskb_may_pull(skb, 4 * iph->ihl))
goto inhdr_error;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (ip_fast_csum((__u8 *) iph, iph->ihl) != 0)
goto inhdr_error;
}
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
- skb->nh.raw -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_push(skb, PPPOE_SES_HLEN);
+ skb->network_header -= PPPOE_SES_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_FORWARD, skb, in,
skb->dev, br_forward_finish, 1);
if (!parent)
return NF_DROP;
- if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb))
+ if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) ||
+ IS_PPPOE_IP(skb))
pf = PF_INET;
else
pf = PF_INET6;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(*pskb, VLAN_HLEN);
- (*pskb)->nh.raw += VLAN_HLEN;
+ (*pskb)->network_header += VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_pull(*pskb, PPPOE_SES_HLEN);
+ (*pskb)->network_header += PPPOE_SES_HLEN;
}
nf_bridge = skb->nf_bridge;
if (!IS_VLAN_ARP(skb))
return NF_ACCEPT;
skb_pull(*pskb, VLAN_HLEN);
- (*pskb)->nh.raw += VLAN_HLEN;
+ (*pskb)->network_header += VLAN_HLEN;
}
- if (skb->nh.arph->ar_pln != 4) {
+ if (arp_hdr(skb)->ar_pln != 4) {
if (IS_VLAN_ARP(skb)) {
skb_push(*pskb, VLAN_HLEN);
- (*pskb)->nh.raw -= VLAN_HLEN;
+ (*pskb)->network_header -= VLAN_HLEN;
}
return NF_ACCEPT;
}
}
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
- skb->nh.raw -= VLAN_HLEN;
+ skb->network_header -= VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_push(skb, PPPOE_SES_HLEN);
+ skb->network_header -= PPPOE_SES_HLEN;
}
NF_HOOK(PF_BRIDGE, NF_BR_FORWARD, skb, realindev, skb->dev,
#ifdef CONFIG_NETFILTER_DEBUG
/* Be very paranoid. This probably won't happen anymore, but let's
* keep the check just to be sure... */
- if (skb->mac.raw < skb->head || skb->mac.raw + ETH_HLEN > skb->data) {
+ if (skb_mac_header(skb) < skb->head ||
+ skb_mac_header(skb) + ETH_HLEN > skb->data) {
printk(KERN_CRIT "br_netfilter: Argh!! br_nf_post_routing: "
"bad mac.raw pointer.\n");
goto print_error;
if (!realoutdev)
return NF_DROP;
- if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb))
+ if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) ||
+ IS_PPPOE_IP(skb))
pf = PF_INET;
else
pf = PF_INET6;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(skb, VLAN_HLEN);
- skb->nh.raw += VLAN_HLEN;
+ skb->network_header += VLAN_HLEN;
+ } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+ skb_pull(skb, PPPOE_SES_HLEN);
+ skb->network_header += PPPOE_SES_HLEN;
}
nf_bridge_save_header(skb);
if (realoutdev)
printk("[%s]", realoutdev->name);
}
- printk(" head:%p, raw:%p, data:%p\n", skb->head, skb->mac.raw,
+ printk(" head:%p, raw:%p, data:%p\n", skb->head, skb_mac_header(skb),
skb->data);
dump_stack();
return NF_ACCEPT;
.mode = 0644,
.proc_handler = &brnf_sysctl_call_tables,
},
+ {
+ .ctl_name = NET_BRIDGE_NF_FILTER_PPPOE_TAGGED,
+ .procname = "bridge-nf-filter-pppoe-tagged",
+ .data = &brnf_filter_pppoe_tagged,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &brnf_sysctl_call_tables,
+ },
{ .ctl_name = 0 }
};
*/
#include <linux/kernel.h>
-#include <linux/rtnetlink.h>
-#include <net/netlink.h>
+#include <net/rtnetlink.h>
#include "br_private.h"
static inline size_t br_nlmsg_size(void)
struct net_device *dev;
int idx;
- read_lock(&dev_base_lock);
for (dev = dev_base, idx = 0; dev; dev = dev->next) {
/* not a bridge port */
if (dev->br_port == NULL || idx < cb->args[0])
skip:
++idx;
}
- read_unlock(&dev_base_lock);
cb->args[0] = idx;
return -EINVAL;
/* if kernel STP is running, don't allow changes */
- if (p->br->stp_enabled)
+ if (p->br->stp_enabled == BR_KERNEL_STP)
return -EBUSY;
if (!netif_running(dev) ||
}
-static struct rtnetlink_link bridge_rtnetlink_table[RTM_NR_MSGTYPES] = {
- [RTM_GETLINK - RTM_BASE] = { .dumpit = br_dump_ifinfo, },
- [RTM_SETLINK - RTM_BASE] = { .doit = br_rtm_setlink, },
-};
-
-void __init br_netlink_init(void)
+int __init br_netlink_init(void)
{
- rtnetlink_links[PF_BRIDGE] = bridge_rtnetlink_table;
+ if (__rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, br_dump_ifinfo))
+ return -ENOBUFS;
+
+ /* Only the first call to __rtnl_register can fail */
+ __rtnl_register(PF_BRIDGE, RTM_SETLINK, br_rtm_setlink, NULL);
+
+ return 0;
}
void __exit br_netlink_fini(void)
{
- rtnetlink_links[PF_BRIDGE] = NULL;
+ rtnl_unregister_all(PF_BRIDGE);
}
case NETDEV_CHANGEADDR:
spin_lock_bh(&br->lock);
br_fdb_changeaddr(p, dev->dev_addr);
- br_ifinfo_notify(RTM_NEWLINK, p);
br_stp_recalculate_bridge_id(br);
spin_unlock_bh(&br->lock);
break;
break;
case NETDEV_UP:
- spin_lock_bh(&br->lock);
- if (netif_carrier_ok(dev) && (br->dev->flags & IFF_UP))
+ if (netif_carrier_ok(dev) && (br->dev->flags & IFF_UP)) {
+ spin_lock_bh(&br->lock);
br_stp_enable_port(p);
- spin_unlock_bh(&br->lock);
+ spin_unlock_bh(&br->lock);
+ }
break;
case NETDEV_UNREGISTER:
break;
}
+ /* Events that may cause spanning tree to refresh */
+ if (event == NETDEV_CHANGEADDR || event == NETDEV_UP ||
+ event == NETDEV_CHANGE || event == NETDEV_DOWN)
+ br_ifinfo_notify(RTM_NEWLINK, p);
+
return NOTIFY_DONE;
}
#define BR_PORT_BITS 10
#define BR_MAX_PORTS (1<<BR_PORT_BITS)
-#define BR_VERSION "2.2"
+#define BR_VERSION "2.3"
+
+/* Path to usermode spanning tree program */
+#define BR_STP_PROG "/sbin/bridge-stp"
typedef struct bridge_id bridge_id;
typedef struct mac_addr mac_addr;
u8 group_addr[ETH_ALEN];
u16 root_port;
- unsigned char stp_enabled;
+
+ enum {
+ BR_NO_STP, /* no spanning tree */
+ BR_KERNEL_STP, /* old STP in kernel */
+ BR_USER_STP, /* new RSTP in userspace */
+ } stp_enabled;
+
unsigned char topology_change;
unsigned char topology_change_detected;
return !memcmp(&br->bridge_id, &br->designated_root, 8);
}
-
/* br_device.c */
extern void br_dev_setup(struct net_device *dev);
extern int br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
/* br_fdb.c */
-extern void br_fdb_init(void);
+extern int br_fdb_init(void);
extern void br_fdb_fini(void);
+extern void br_fdb_flush(struct net_bridge *br);
extern void br_fdb_changeaddr(struct net_bridge_port *p,
const unsigned char *newaddr);
extern void br_fdb_cleanup(unsigned long arg);
/* br_input.c */
extern int br_handle_frame_finish(struct sk_buff *skb);
-extern int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb);
+extern struct sk_buff *br_handle_frame(struct net_bridge_port *p,
+ struct sk_buff *skb);
/* br_ioctl.c */
extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
/* br_stp_if.c */
extern void br_stp_enable_bridge(struct net_bridge *br);
extern void br_stp_disable_bridge(struct net_bridge *br);
+extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
extern void br_stp_enable_port(struct net_bridge_port *p);
extern void br_stp_disable_port(struct net_bridge_port *p);
extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
/* br_netlink.c */
-extern void br_netlink_init(void);
+extern int br_netlink_init(void);
extern void br_netlink_fini(void);
extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
static void br_make_forwarding(struct net_bridge_port *p)
{
if (p->state == BR_STATE_BLOCKING) {
- if (p->br->stp_enabled) {
+ if (p->br->stp_enabled == BR_KERNEL_STP)
p->state = BR_STATE_LISTENING;
- } else {
+ else
p->state = BR_STATE_LEARNING;
- }
+
br_log_state(p);
mod_timer(&p->forward_delay_timer, jiffies + p->br->forward_delay); }
}
{
struct net_bridge_port *p;
+ /* Don't change port states if userspace is handling STP */
+ if (br->stp_enabled == BR_USER_STP)
+ return;
+
list_for_each_entry(p, &br->port_list, list) {
if (p->state != BR_STATE_DISABLED) {
if (p->port_no == br->root_port) {
{
struct sk_buff *skb;
- if (!p->br->stp_enabled)
- return;
-
skb = dev_alloc_skb(length+LLC_RESERVE);
if (!skb)
return;
{
unsigned char buf[35];
+ if (p->br->stp_enabled != BR_KERNEL_STP)
+ return;
+
buf[0] = 0;
buf[1] = 0;
buf[2] = 0;
{
unsigned char buf[4];
+ if (p->br->stp_enabled != BR_KERNEL_STP)
+ return;
+
buf[0] = 0;
buf[1] = 0;
buf[2] = 0;
br = p->br;
spin_lock(&br->lock);
- if (p->state == BR_STATE_DISABLED
- || !br->stp_enabled
- || !(br->dev->flags & IFF_UP))
+ if (br->stp_enabled != BR_KERNEL_STP)
+ goto out;
+
+ if (!(br->dev->flags & IFF_UP))
+ goto out;
+
+ if (p->state == BR_STATE_DISABLED)
goto out;
if (compare_ether_addr(dest, br->group_addr) != 0)
void br_stp_enable_port(struct net_bridge_port *p)
{
br_init_port(p);
- br_ifinfo_notify(RTM_NEWLINK, p);
br_port_state_selection(p->br);
}
printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
br->dev->name, p->port_no, p->dev->name, "disabled");
- br_ifinfo_notify(RTM_DELLINK, p);
-
wasroot = br_is_root_bridge(br);
br_become_designated_port(p);
p->state = BR_STATE_DISABLED;
br_become_root_bridge(br);
}
+static void br_stp_start(struct net_bridge *br)
+{
+ int r;
+ char *argv[] = { BR_STP_PROG, br->dev->name, "start", NULL };
+ char *envp[] = { NULL };
+
+ r = call_usermodehelper(BR_STP_PROG, argv, envp, 1);
+ if (r == 0) {
+ br->stp_enabled = BR_USER_STP;
+ printk(KERN_INFO "%s: userspace STP started\n", br->dev->name);
+ } else {
+ br->stp_enabled = BR_KERNEL_STP;
+ printk(KERN_INFO "%s: starting userspace STP failed, "
+ "staring kernel STP\n", br->dev->name);
+
+ /* To start timers on any ports left in blocking */
+ spin_lock_bh(&br->lock);
+ br_port_state_selection(br);
+ spin_unlock_bh(&br->lock);
+ }
+}
+
+static void br_stp_stop(struct net_bridge *br)
+{
+ int r;
+ char *argv[] = { BR_STP_PROG, br->dev->name, "stop", NULL };
+ char *envp[] = { NULL };
+
+ if (br->stp_enabled == BR_USER_STP) {
+ r = call_usermodehelper(BR_STP_PROG, argv, envp, 1);
+ printk(KERN_INFO "%s: userspace STP stopped, return code %d\n",
+ br->dev->name, r);
+
+
+ /* To start timers on any ports left in blocking */
+ spin_lock_bh(&br->lock);
+ br_port_state_selection(br);
+ spin_unlock_bh(&br->lock);
+ }
+
+ br->stp_enabled = BR_NO_STP;
+}
+
+void br_stp_set_enabled(struct net_bridge *br, unsigned long val)
+{
+ ASSERT_RTNL();
+
+ if (val) {
+ if (br->stp_enabled == BR_NO_STP)
+ br_stp_start(br);
+ } else {
+ if (br->stp_enabled != BR_NO_STP)
+ br_stp_stop(br);
+ }
+}
+
/* called under bridge lock */
void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)
{
static void set_stp_state(struct net_bridge *br, unsigned long val)
{
- br->stp_enabled = val;
+ rtnl_lock();
+ spin_unlock_bh(&br->lock);
+ br_stp_set_enabled(br, val);
+ spin_lock_bh(&br->lock);
+ rtnl_unlock();
}
static ssize_t store_stp_state(struct device *d,
static DEVICE_ATTR(group_addr, S_IRUGO | S_IWUSR,
show_group_addr, store_group_addr);
+static ssize_t store_flush(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct net_bridge *br = to_bridge(d);
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ br_fdb_flush(br);
+ return len;
+}
+static DEVICE_ATTR(flush, S_IWUSR, NULL, store_flush);
static struct attribute *bridge_attrs[] = {
&dev_attr_forward_delay.attr,
&dev_attr_topology_change_timer.attr,
&dev_attr_gc_timer.attr,
&dev_attr_group_addr.attr,
+ &dev_attr_flush.attr,
NULL
};
}
static BRPORT_ATTR(hold_timer, S_IRUGO, show_hold_timer, NULL);
+static ssize_t store_flush(struct net_bridge_port *p, unsigned long v)
+{
+ br_fdb_delete_by_port(p->br, p, 0); // Don't delete local entry
+ return 0;
+}
+static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush);
+
static struct brport_attribute *brport_attrs[] = {
&brport_attr_path_cost,
&brport_attr_priority,
&brport_attr_message_age_timer,
&brport_attr_forward_delay_timer,
&brport_attr_hold_timer,
+ &brport_attr_flush,
NULL
};
return EBT_NOMATCH;
if (info->bitmask & (EBT_ARP_SRC_IP | EBT_ARP_DST_IP)) {
- __be32 _addr, *ap;
+ __be32 saddr, daddr, *sap, *dap;
- /* IPv4 addresses are always 4 bytes */
- if (ah->ar_pln != sizeof(__be32))
+ if (ah->ar_pln != sizeof(__be32) || ah->ar_pro != htons(ETH_P_IP))
+ return EBT_NOMATCH;
+ sap = skb_header_pointer(skb, sizeof(struct arphdr) +
+ ah->ar_hln, sizeof(saddr),
+ &saddr);
+ if (sap == NULL)
+ return EBT_NOMATCH;
+ dap = skb_header_pointer(skb, sizeof(struct arphdr) +
+ 2*ah->ar_hln+sizeof(saddr),
+ sizeof(daddr), &daddr);
+ if (dap == NULL)
+ return EBT_NOMATCH;
+ if (info->bitmask & EBT_ARP_SRC_IP &&
+ FWINV(info->saddr != (*sap & info->smsk), EBT_ARP_SRC_IP))
+ return EBT_NOMATCH;
+ if (info->bitmask & EBT_ARP_DST_IP &&
+ FWINV(info->daddr != (*dap & info->dmsk), EBT_ARP_DST_IP))
+ return EBT_NOMATCH;
+ if (info->bitmask & EBT_ARP_GRAT &&
+ FWINV(*dap != *sap, EBT_ARP_GRAT))
return EBT_NOMATCH;
- if (info->bitmask & EBT_ARP_SRC_IP) {
- ap = skb_header_pointer(skb, sizeof(struct arphdr) +
- ah->ar_hln, sizeof(_addr),
- &_addr);
- if (ap == NULL)
- return EBT_NOMATCH;
- if (FWINV(info->saddr != (*ap & info->smsk),
- EBT_ARP_SRC_IP))
- return EBT_NOMATCH;
- }
-
- if (info->bitmask & EBT_ARP_DST_IP) {
- ap = skb_header_pointer(skb, sizeof(struct arphdr) +
- 2*ah->ar_hln+sizeof(__be32),
- sizeof(_addr), &_addr);
- if (ap == NULL)
- return EBT_NOMATCH;
- if (FWINV(info->daddr != (*ap & info->dmsk),
- EBT_ARP_DST_IP))
- return EBT_NOMATCH;
- }
}
if (info->bitmask & (EBT_ARP_SRC_MAC | EBT_ARP_DST_MAC)) {
unsigned char _mac[ETH_ALEN], *mp;
uint8_t verdict, i;
- /* MAC addresses are 6 bytes */
- if (ah->ar_hln != ETH_ALEN)
+ if (ah->ar_hln != ETH_ALEN || ah->ar_hrd != htons(ARPHRD_ETHER))
return EBT_NOMATCH;
if (info->bitmask & EBT_ARP_SRC_MAC) {
mp = skb_header_pointer(skb, sizeof(struct arphdr),
ret = ebt_register_watcher(&log);
if (ret < 0)
return ret;
- if (nf_log_register(PF_BRIDGE, &ebt_log_logger) < 0) {
- printk(KERN_WARNING "ebt_log: not logging via system console "
- "since somebody else already registered for PF_INET\n");
- /* we cannot make module load fail here, since otherwise
- * ebtables userspace would abort */
- }
-
- return 0;
+ ret = nf_log_register(PF_BRIDGE, &ebt_log_logger);
+ if (ret < 0 && ret != -EEXIST)
+ ebt_unregister_watcher(&log);
+ return ret;
}
static void __exit ebt_log_fini(void)
unsigned int group = uloginfo->nlgroup;
ebt_ulog_buff_t *ub = &ulog_buffers[group];
spinlock_t *lock = &ub->lock;
+ ktime_t kt;
if ((uloginfo->cprange == 0) ||
(uloginfo->cprange > skb->len + ETH_HLEN))
/* Fill in the ulog data */
pm->version = EBT_ULOG_VERSION;
- do_gettimeofday(&pm->stamp);
+ kt = ktime_get_real();
+ pm->stamp = ktime_to_timeval(kt);
if (ub->qlen == 1)
- skb_set_timestamp(ub->skb, &pm->stamp);
+ ub->skb->tstamp = kt;
pm->data_len = copy_len;
pm->mark = skb->mark;
pm->hook = hooknr;
/* initialize ulog_buffers */
for (i = 0; i < EBT_ULOG_MAXNLGROUPS; i++) {
- init_timer(&ulog_buffers[i].timer);
- ulog_buffers[i].timer.function = ulog_timer;
- ulog_buffers[i].timer.data = i;
+ setup_timer(&ulog_buffers[i].timer, ulog_timer, i);
spin_lock_init(&ulog_buffers[i].lock);
}
ebtulognl = netlink_kernel_create(NETLINK_NFLOG, EBT_ULOG_MAXNLGROUPS,
- NULL, THIS_MODULE);
+ NULL, NULL, THIS_MODULE);
if (!ebtulognl)
ret = -ENOMEM;
else if ((ret = ebt_register_watcher(&ulog)))
{
int tot_len = 0;
- while(niov > 0) {
+ while (niov > 0) {
compat_uptr_t buf;
compat_size_t len;
- if(get_user(len, &uiov32->iov_len) ||
+ if (get_user(len, &uiov32->iov_len) ||
get_user(buf, &uiov32->iov_base)) {
tot_len = -EFAULT;
break;
{
int tot_len;
- if(kern_msg->msg_namelen) {
- if(mode==VERIFY_READ) {
+ if (kern_msg->msg_namelen) {
+ if (mode==VERIFY_READ) {
int err = move_addr_to_kernel(kern_msg->msg_name,
kern_msg->msg_namelen,
kern_address);
- if(err < 0)
+ if (err < 0)
return err;
}
kern_msg->msg_name = kern_address;
tot_len = iov_from_user_compat_to_kern(kern_iov,
(struct compat_iovec __user *)kern_msg->msg_iov,
kern_msg->msg_iovlen);
- if(tot_len >= 0)
+ if (tot_len >= 0)
kern_msg->msg_iov = kern_iov;
return tot_len;
kcmlen = 0;
kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
- while(ucmsg != NULL) {
- if(get_user(ucmlen, &ucmsg->cmsg_len))
+ while (ucmsg != NULL) {
+ if (get_user(ucmlen, &ucmsg->cmsg_len))
return -EFAULT;
/* Catch bogons. */
kcmlen += tmp;
ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
}
- if(kcmlen == 0)
+ if (kcmlen == 0)
return -EINVAL;
/* The kcmlen holds the 64-bit version of the control length.
/* Now copy them over neatly. */
memset(kcmsg, 0, kcmlen);
ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);
- while(ucmsg != NULL) {
+ while (ucmsg != NULL) {
if (__get_user(ucmlen, &ucmsg->cmsg_len))
goto Efault;
if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))
int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
{
struct compat_timeval ctv;
+ struct compat_timespec cts;
struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
struct compat_cmsghdr cmhdr;
int cmlen;
- if(cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
+ if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
kmsg->msg_flags |= MSG_CTRUNC;
return 0; /* XXX: return error? check spec. */
}
ctv.tv_sec = tv->tv_sec;
ctv.tv_usec = tv->tv_usec;
data = &ctv;
- len = sizeof(struct compat_timeval);
+ len = sizeof(ctv);
+ }
+ if (level == SOL_SOCKET && type == SO_TIMESTAMPNS) {
+ struct timespec *ts = (struct timespec *)data;
+ cts.tv_sec = ts->tv_sec;
+ cts.tv_nsec = ts->tv_nsec;
+ data = &cts;
+ len = sizeof(cts);
}
cmlen = CMSG_COMPAT_LEN(len);
- if(kmsg->msg_controllen < cmlen) {
+ if (kmsg->msg_controllen < cmlen) {
kmsg->msg_flags |= MSG_CTRUNC;
cmlen = kmsg->msg_controllen;
}
cmhdr.cmsg_type = type;
cmhdr.cmsg_len = cmlen;
- if(copy_to_user(cm, &cmhdr, sizeof cmhdr))
+ if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
return -EFAULT;
- if(copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
+ if (copy_to_user(CMSG_COMPAT_DATA(cm), data, cmlen - sizeof(struct compat_cmsghdr)))
return -EFAULT;
cmlen = CMSG_COMPAT_SPACE(len);
kmsg->msg_control += cmlen;
struct compat_timeval __user *ctv =
(struct compat_timeval __user*) userstamp;
int err = -ENOENT;
+ struct timeval tv;
if (!sock_flag(sk, SOCK_TIMESTAMP))
sock_enable_timestamp(sk);
- if (sk->sk_stamp.tv_sec == -1)
+ tv = ktime_to_timeval(sk->sk_stamp);
+ if (tv.tv_sec == -1)
return err;
- if (sk->sk_stamp.tv_sec == 0)
- do_gettimeofday(&sk->sk_stamp);
- if (put_user(sk->sk_stamp.tv_sec, &ctv->tv_sec) ||
- put_user(sk->sk_stamp.tv_usec, &ctv->tv_usec))
+ if (tv.tv_sec == 0) {
+ sk->sk_stamp = ktime_get_real();
+ tv = ktime_to_timeval(sk->sk_stamp);
+ }
+ err = 0;
+ if (put_user(tv.tv_sec, &ctv->tv_sec) ||
+ put_user(tv.tv_usec, &ctv->tv_usec))
err = -EFAULT;
return err;
}
EXPORT_SYMBOL(compat_sock_get_timestamp);
+int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
+{
+ struct compat_timespec __user *ctv =
+ (struct compat_timespec __user*) userstamp;
+ int err = -ENOENT;
+ struct timespec ts;
+
+ if (!sock_flag(sk, SOCK_TIMESTAMP))
+ sock_enable_timestamp(sk);
+ ts = ktime_to_timespec(sk->sk_stamp);
+ if (ts.tv_sec == -1)
+ return err;
+ if (ts.tv_sec == 0) {
+ sk->sk_stamp = ktime_get_real();
+ ts = ktime_to_timespec(sk->sk_stamp);
+ }
+ err = 0;
+ if (put_user(ts.tv_sec, &ctv->tv_sec) ||
+ put_user(ts.tv_nsec, &ctv->tv_nsec))
+ err = -EFAULT;
+ return err;
+}
+EXPORT_SYMBOL(compat_sock_get_timestampns);
+
asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
char __user *optval, int __user *optlen)
{
a0 = a[0];
a1 = a[1];
- switch(call) {
+ switch (call) {
case SYS_SOCKET:
ret = sys_socket(a0, a1, a[2]);
break;
obj-$(CONFIG_XFRM) += flow.o
obj-$(CONFIG_SYSFS) += net-sysfs.o
obj-$(CONFIG_NET_PKTGEN) += pktgen.o
-obj-$(CONFIG_WIRELESS_EXT) += wireless.o
obj-$(CONFIG_NETPOLL) += netpoll.o
obj-$(CONFIG_NET_DMA) += user_dma.o
obj-$(CONFIG_FIB_RULES) += fib_rules.o
int skb_copy_datagram_iovec(const struct sk_buff *skb, int offset,
struct iovec *to, int len)
{
- int start = skb_headlen(skb);
- int i, copy = start - offset;
+ int end = skb_headlen(skb);
+ int i, copy = end - offset;
/* Copy header. */
if (copy > 0) {
/* Copy paged appendix. Hmm... why does this look so complicated? */
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
int err;
u8 *vaddr;
if (copy > len)
copy = len;
vaddr = kmap(page);
- err = memcpy_toiovec(to, vaddr + frag->page_offset +
- offset - start, copy);
+ err = memcpy_toiovec(to, vaddr + frag->page_offset,
+ copy);
kunmap(page);
if (err)
goto fault;
return 0;
offset += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- if (skb_copy_datagram_iovec(list,
- offset - start,
- to, copy))
+ if (skb_copy_datagram_iovec(list, 0, to, copy))
goto fault;
if ((len -= copy) == 0)
return 0;
offset += copy;
}
- start = end;
}
}
if (!len)
u8 __user *to, int len,
__wsum *csump)
{
- int start = skb_headlen(skb);
+ int end = skb_headlen(skb);
int pos = 0;
- int i, copy = start - offset;
+ int i, copy = end - offset;
/* Copy header. */
if (copy > 0) {
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
__wsum csum2;
int err = 0;
copy = len;
vaddr = kmap(page);
csum2 = csum_and_copy_to_user(vaddr +
- frag->page_offset +
- offset - start,
+ frag->page_offset,
to, copy, 0, &err);
kunmap(page);
if (err)
to += copy;
pos += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list=list->next) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
__wsum csum2 = 0;
if (copy > len)
copy = len;
- if (skb_copy_and_csum_datagram(list,
- offset - start,
+ if (skb_copy_and_csum_datagram(list, 0,
to, copy,
&csum2))
goto fault;
to += copy;
pos += copy;
}
- start = end;
}
}
if (!len)
return -EFAULT;
}
-__sum16 __skb_checksum_complete(struct sk_buff *skb)
+__sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len)
{
__sum16 sum;
- sum = csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
+ sum = csum_fold(skb_checksum(skb, 0, len, skb->csum));
if (likely(!sum)) {
if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
netdev_rx_csum_fault(skb->dev);
}
return sum;
}
+EXPORT_SYMBOL(__skb_checksum_complete_head);
+
+__sum16 __skb_checksum_complete(struct sk_buff *skb)
+{
+ return __skb_checksum_complete_head(skb, skb->len);
+}
EXPORT_SYMBOL(__skb_checksum_complete);
/**
#include <linux/netpoll.h>
#include <linux/rcupdate.h>
#include <linux/delay.h>
-#include <linux/wireless.h>
+#include <net/wext.h>
#include <net/iw_handler.h>
#include <asm/current.h>
#include <linux/audit.h>
*/
static DEFINE_SPINLOCK(ptype_lock);
-static struct list_head ptype_base[16]; /* 16 way hashed list */
-static struct list_head ptype_all; /* Taps */
+static struct list_head ptype_base[16] __read_mostly; /* 16 way hashed list */
+static struct list_head ptype_all __read_mostly; /* Taps */
#ifdef CONFIG_NET_DMA
static struct dma_client *net_dma_client;
*******************************************************************************/
-/*
- * For efficiency
- */
-
-static int netdev_nit;
-
/*
* Add a protocol ID to the list. Now that the input handler is
* smarter we can dispense with all the messy stuff that used to be
int hash;
spin_lock_bh(&ptype_lock);
- if (pt->type == htons(ETH_P_ALL)) {
- netdev_nit++;
+ if (pt->type == htons(ETH_P_ALL))
list_add_rcu(&pt->list, &ptype_all);
- } else {
+ else {
hash = ntohs(pt->type) & 15;
list_add_rcu(&pt->list, &ptype_base[hash]);
}
spin_lock_bh(&ptype_lock);
- if (pt->type == htons(ETH_P_ALL)) {
- netdev_nit--;
+ if (pt->type == htons(ETH_P_ALL))
head = &ptype_all;
- } else
+ else
head = &ptype_base[ntohs(pt->type) & 15];
list_for_each_entry(pt1, head, list) {
return 1;
}
-
/**
* dev_open - prepare an interface for use.
* @dev: device to open
atomic_dec(&netstamp_needed);
}
-void __net_timestamp(struct sk_buff *skb)
-{
- struct timeval tv;
-
- do_gettimeofday(&tv);
- skb_set_timestamp(skb, &tv);
-}
-EXPORT_SYMBOL(__net_timestamp);
-
static inline void net_timestamp(struct sk_buff *skb)
{
if (atomic_read(&netstamp_needed))
__net_timestamp(skb);
- else {
- skb->tstamp.off_sec = 0;
- skb->tstamp.off_usec = 0;
- }
+ else
+ skb->tstamp.tv64 = 0;
}
/*
set by sender, so that the second statement is
just protection against buggy protocols.
*/
- skb2->mac.raw = skb2->data;
+ skb_reset_mac_header(skb2);
- if (skb2->nh.raw < skb2->data ||
- skb2->nh.raw > skb2->tail) {
+ if (skb_network_header(skb2) < skb2->data ||
+ skb2->network_header > skb2->tail) {
if (net_ratelimit())
printk(KERN_CRIT "protocol %04x is "
"buggy, dev %s\n",
skb2->protocol, dev->name);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
}
- skb2->h.raw = skb2->nh.raw;
+ skb2->transport_header = skb2->network_header;
skb2->pkt_type = PACKET_OUTGOING;
ptype->func(skb2, skb->dev, ptype, skb->dev);
}
int skb_checksum_help(struct sk_buff *skb)
{
__wsum csum;
- int ret = 0, offset = skb->h.raw - skb->data;
+ int ret = 0, offset;
if (skb->ip_summed == CHECKSUM_COMPLETE)
goto out_set_summed;
goto out;
}
+ offset = skb->csum_start - skb_headroom(skb);
BUG_ON(offset > (int)skb->len);
csum = skb_checksum(skb, offset, skb->len-offset, 0);
- offset = skb->tail - skb->h.raw;
+ offset = skb_headlen(skb) - offset;
BUG_ON(offset <= 0);
BUG_ON(skb->csum_offset + 2 > offset);
- *(__sum16*)(skb->h.raw + skb->csum_offset) = csum_fold(csum);
-
+ *(__sum16 *)(skb->head + skb->csum_start + skb->csum_offset) =
+ csum_fold(csum);
out_set_summed:
skb->ip_summed = CHECKSUM_NONE;
out:
BUG_ON(skb_shinfo(skb)->frag_list);
- skb->mac.raw = skb->data;
- skb->mac_len = skb->nh.raw - skb->data;
+ skb_reset_mac_header(skb);
+ skb->mac_len = skb->network_header - skb->mac_header;
__skb_pull(skb, skb->mac_len);
- if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
+ if (WARN_ON(skb->ip_summed != CHECKSUM_PARTIAL)) {
if (skb_header_cloned(skb) &&
(err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
return ERR_PTR(err);
segs = ERR_PTR(err);
if (err || skb_gso_ok(skb, features))
break;
- __skb_push(skb, skb->data - skb->nh.raw);
+ __skb_push(skb, (skb->data -
+ skb_network_header(skb)));
}
segs = ptype->gso_segment(skb, features);
break;
}
rcu_read_unlock();
- __skb_push(skb, skb->data - skb->mac.raw);
+ __skb_push(skb, skb->data - skb_mac_header(skb));
return segs;
}
int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
if (likely(!skb->next)) {
- if (netdev_nit)
+ if (!list_empty(&ptype_all))
dev_queue_xmit_nit(skb, dev);
if (netif_needs_gso(dev, skb)) {
/* If packet is not checksummed and device does not support
* checksumming for this protocol, complete checksumming here.
*/
- if (skb->ip_summed == CHECKSUM_PARTIAL &&
- (!(dev->features & NETIF_F_GEN_CSUM) &&
- (!(dev->features & NETIF_F_IP_CSUM) ||
- skb->protocol != htons(ETH_P_IP))))
- if (skb_checksum_help(skb))
- goto out_kfree_skb;
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ skb_set_transport_header(skb, skb->csum_start -
+ skb_headroom(skb));
+
+ if (!(dev->features & NETIF_F_GEN_CSUM) &&
+ (!(dev->features & NETIF_F_IP_CSUM) ||
+ skb->protocol != htons(ETH_P_IP)))
+ if (skb_checksum_help(skb))
+ goto out_kfree_skb;
+ }
gso:
spin_lock_prefetch(&dev->queue_lock);
Receiver routines
=======================================================================*/
-int netdev_max_backlog = 1000;
-int netdev_budget = 300;
-int weight_p = 64; /* old backlog weight */
+int netdev_max_backlog __read_mostly = 1000;
+int netdev_budget __read_mostly = 300;
+int weight_p __read_mostly = 64; /* old backlog weight */
DEFINE_PER_CPU(struct netif_rx_stats, netdev_rx_stat) = { 0, };
if (netpoll_rx(skb))
return NET_RX_DROP;
- if (!skb->tstamp.off_sec)
+ if (!skb->tstamp.tv64)
net_timestamp(skb);
/*
}
}
-static __inline__ int deliver_skb(struct sk_buff *skb,
- struct packet_type *pt_prev,
- struct net_device *orig_dev)
+static inline int deliver_skb(struct sk_buff *skb,
+ struct packet_type *pt_prev,
+ struct net_device *orig_dev)
{
atomic_inc(&skb->users);
return pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
}
#if defined(CONFIG_BRIDGE) || defined (CONFIG_BRIDGE_MODULE)
-int (*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff **pskb);
+/* These hooks defined here for ATM */
struct net_bridge;
struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
unsigned char *addr);
-void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent);
+void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) __read_mostly;
-static __inline__ int handle_bridge(struct sk_buff **pskb,
- struct packet_type **pt_prev, int *ret,
- struct net_device *orig_dev)
+/*
+ * If bridge module is loaded call bridging hook.
+ * returns NULL if packet was consumed.
+ */
+struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
+ struct sk_buff *skb) __read_mostly;
+static inline struct sk_buff *handle_bridge(struct sk_buff *skb,
+ struct packet_type **pt_prev, int *ret,
+ struct net_device *orig_dev)
{
struct net_bridge_port *port;
- if ((*pskb)->pkt_type == PACKET_LOOPBACK ||
- (port = rcu_dereference((*pskb)->dev->br_port)) == NULL)
- return 0;
+ if (skb->pkt_type == PACKET_LOOPBACK ||
+ (port = rcu_dereference(skb->dev->br_port)) == NULL)
+ return skb;
if (*pt_prev) {
- *ret = deliver_skb(*pskb, *pt_prev, orig_dev);
+ *ret = deliver_skb(skb, *pt_prev, orig_dev);
*pt_prev = NULL;
}
- return br_handle_frame_hook(port, pskb);
+ return br_handle_frame_hook(port, skb);
}
#else
-#define handle_bridge(skb, pt_prev, ret, orig_dev) (0)
+#define handle_bridge(skb, pt_prev, ret, orig_dev) (skb)
#endif
#ifdef CONFIG_NET_CLS_ACT
skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_INGRESS);
- spin_lock(&dev->queue_lock);
+ spin_lock(&dev->ingress_lock);
if ((q = dev->qdisc_ingress) != NULL)
result = q->enqueue(skb, q);
- spin_unlock(&dev->queue_lock);
+ spin_unlock(&dev->ingress_lock);
}
if (skb->dev->poll && netpoll_rx(skb))
return NET_RX_DROP;
- if (!skb->tstamp.off_sec)
+ if (!skb->tstamp.tv64)
net_timestamp(skb);
if (!skb->iif)
__get_cpu_var(netdev_rx_stat).total++;
- skb->h.raw = skb->nh.raw = skb->data;
- skb->mac_len = skb->nh.raw - skb->mac.raw;
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ skb->mac_len = skb->network_header - skb->mac_header;
pt_prev = NULL;
ncls:
#endif
- if (handle_bridge(&skb, &pt_prev, &ret, orig_dev))
+ skb = handle_bridge(skb, &pt_prev, &ret, orig_dev);
+ if (!skb)
goto out;
type = skb->protocol;
* This is invoked by the /proc filesystem handler to display a device
* in detail.
*/
-static __inline__ struct net_device *dev_get_idx(loff_t pos)
+static struct net_device *dev_get_idx(loff_t pos)
{
struct net_device *dev;
loff_t i;
static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
{
- if (dev->get_stats) {
- struct net_device_stats *stats = dev->get_stats(dev);
+ struct net_device_stats *stats = dev->get_stats(dev);
+ if (stats) {
seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
"%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
dev->name, stats->rx_bytes, stats->rx_packets,
return 0;
}
-static struct seq_operations dev_seq_ops = {
+static const struct seq_operations dev_seq_ops = {
.start = dev_seq_start,
.next = dev_seq_next,
.stop = dev_seq_stop,
.release = seq_release,
};
-static struct seq_operations softnet_seq_ops = {
+static const struct seq_operations softnet_seq_ops = {
.start = softnet_seq_start,
.next = softnet_seq_next,
.stop = softnet_seq_stop,
.release = seq_release,
};
-#ifdef CONFIG_WIRELESS_EXT
-extern int wireless_proc_init(void);
-#else
-#define wireless_proc_init() 0
+static void *ptype_get_idx(loff_t pos)
+{
+ struct packet_type *pt = NULL;
+ loff_t i = 0;
+ int t;
+
+ list_for_each_entry_rcu(pt, &ptype_all, list) {
+ if (i == pos)
+ return pt;
+ ++i;
+ }
+
+ for (t = 0; t < 16; t++) {
+ list_for_each_entry_rcu(pt, &ptype_base[t], list) {
+ if (i == pos)
+ return pt;
+ ++i;
+ }
+ }
+ return NULL;
+}
+
+static void *ptype_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ rcu_read_lock();
+ return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *ptype_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct packet_type *pt;
+ struct list_head *nxt;
+ int hash;
+
+ ++*pos;
+ if (v == SEQ_START_TOKEN)
+ return ptype_get_idx(0);
+
+ pt = v;
+ nxt = pt->list.next;
+ if (pt->type == htons(ETH_P_ALL)) {
+ if (nxt != &ptype_all)
+ goto found;
+ hash = 0;
+ nxt = ptype_base[0].next;
+ } else
+ hash = ntohs(pt->type) & 15;
+
+ while (nxt == &ptype_base[hash]) {
+ if (++hash >= 16)
+ return NULL;
+ nxt = ptype_base[hash].next;
+ }
+found:
+ return list_entry(nxt, struct packet_type, list);
+}
+
+static void ptype_seq_stop(struct seq_file *seq, void *v)
+{
+ rcu_read_unlock();
+}
+
+static void ptype_seq_decode(struct seq_file *seq, void *sym)
+{
+#ifdef CONFIG_KALLSYMS
+ unsigned long offset = 0, symsize;
+ const char *symname;
+ char *modname;
+ char namebuf[128];
+
+ symname = kallsyms_lookup((unsigned long)sym, &symsize, &offset,
+ &modname, namebuf);
+
+ if (symname) {
+ char *delim = ":";
+
+ if (!modname)
+ modname = delim = "";
+ seq_printf(seq, "%s%s%s%s+0x%lx", delim, modname, delim,
+ symname, offset);
+ return;
+ }
#endif
+ seq_printf(seq, "[%p]", sym);
+}
+
+static int ptype_seq_show(struct seq_file *seq, void *v)
+{
+ struct packet_type *pt = v;
+
+ if (v == SEQ_START_TOKEN)
+ seq_puts(seq, "Type Device Function\n");
+ else {
+ if (pt->type == htons(ETH_P_ALL))
+ seq_puts(seq, "ALL ");
+ else
+ seq_printf(seq, "%04x", ntohs(pt->type));
+
+ seq_printf(seq, " %-8s ",
+ pt->dev ? pt->dev->name : "");
+ ptype_seq_decode(seq, pt->func);
+ seq_putc(seq, '\n');
+ }
+
+ return 0;
+}
+
+static const struct seq_operations ptype_seq_ops = {
+ .start = ptype_seq_start,
+ .next = ptype_seq_next,
+ .stop = ptype_seq_stop,
+ .show = ptype_seq_show,
+};
+
+static int ptype_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &ptype_seq_ops);
+}
+
+static const struct file_operations ptype_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = ptype_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+
static int __init dev_proc_init(void)
{
int rc = -ENOMEM;
goto out;
if (!proc_net_fops_create("softnet_stat", S_IRUGO, &softnet_seq_fops))
goto out_dev;
- if (wireless_proc_init())
+ if (!proc_net_fops_create("ptype", S_IRUGO, &ptype_seq_fops))
+ goto out_dev2;
+
+ if (wext_proc_init())
goto out_softnet;
rc = 0;
out:
return rc;
out_softnet:
proc_net_remove("softnet_stat");
+out_dev2:
+ proc_net_remove("ptype");
out_dev:
proc_net_remove("dev");
goto out;
ret = -EFAULT;
return ret;
}
-#ifdef CONFIG_WIRELESS_EXT
/* Take care of Wireless Extensions */
- if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) {
- /* If command is `set a parameter', or
- * `get the encoding parameters', check if
- * the user has the right to do it */
- if (IW_IS_SET(cmd) || cmd == SIOCGIWENCODE
- || cmd == SIOCGIWENCODEEXT) {
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- }
- dev_load(ifr.ifr_name);
- rtnl_lock();
- /* Follow me in net/core/wireless.c */
- ret = wireless_process_ioctl(&ifr, cmd);
- rtnl_unlock();
- if (IW_IS_GET(cmd) &&
- copy_to_user(arg, &ifr,
- sizeof(struct ifreq)))
- ret = -EFAULT;
- return ret;
- }
-#endif /* CONFIG_WIRELESS_EXT */
+ if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)
+ return wext_handle_ioctl(&ifr, cmd, arg);
return -EINVAL;
}
}
static DEFINE_SPINLOCK(net_todo_list_lock);
static struct list_head net_todo_list = LIST_HEAD_INIT(net_todo_list);
-static inline void net_set_todo(struct net_device *dev)
+static void net_set_todo(struct net_device *dev)
{
spin_lock(&net_todo_list_lock);
list_add_tail(&dev->todo_list, &net_todo_list);
spin_lock_init(&dev->queue_lock);
spin_lock_init(&dev->_xmit_lock);
dev->xmit_lock_owner = -1;
-#ifdef CONFIG_NET_CLS_ACT
spin_lock_init(&dev->ingress_lock);
-#endif
dev->iflink = -1;
* chain. 0 is returned on success. A negative errno code is returned
* on a failure to set up the device, or if the name is a duplicate.
*
- * This is a wrapper around register_netdev that takes the rtnl semaphore
+ * This is a wrapper around register_netdevice that takes the rtnl semaphore
* and expands the device name if you passed a format string to
* alloc_netdev.
*/
mutex_unlock(&net_todo_run_mutex);
}
+static struct net_device_stats *maybe_internal_stats(struct net_device *dev)
+{
+ if (dev->features & NETIF_F_INTERNAL_STATS)
+ return &dev->stats;
+ return NULL;
+}
+
/**
* alloc_netdev - allocate network device
* @sizeof_priv: size of private data to allocate space for
if (sizeof_priv)
dev->priv = netdev_priv(dev);
+ dev->get_stats = maybe_internal_stats;
setup(dev);
strcpy(dev->name, name);
return dev;
return 0;
}
-static struct seq_operations dev_mc_seq_ops = {
+static const struct seq_operations dev_mc_seq_ops = {
.start = dev_mc_seq_start,
.next = dev_mc_seq_next,
.stop = dev_mc_seq_stop,
return -EPERM;
}
- if(dev->ethtool_ops->begin)
+ if (dev->ethtool_ops->begin)
if ((rc = dev->ethtool_ops->begin(dev)) < 0)
return rc;
rc = -EOPNOTSUPP;
}
- if(dev->ethtool_ops->complete)
+ if (dev->ethtool_ops->complete)
dev->ethtool_ops->complete(dev);
if (old_features != dev->features)
module_put(ops->owner);
}
+static void flush_route_cache(struct fib_rules_ops *ops)
+{
+ if (ops->flush_cache)
+ ops->flush_cache();
+}
+
int fib_rules_register(struct fib_rules_ops *ops)
{
int err = -EEXIST;
rcu_read_lock();
list_for_each_entry_rcu(rule, ops->rules_list, list) {
+jumped:
if (!fib_rule_match(rule, ops, fl, flags))
continue;
- err = ops->action(rule, fl, flags, arg);
+ if (rule->action == FR_ACT_GOTO) {
+ struct fib_rule *target;
+
+ target = rcu_dereference(rule->ctarget);
+ if (target == NULL) {
+ continue;
+ } else {
+ rule = target;
+ goto jumped;
+ }
+ } else if (rule->action == FR_ACT_NOP)
+ continue;
+ else
+ err = ops->action(rule, fl, flags, arg);
+
if (err != -EAGAIN) {
fib_rule_get(rule);
arg->rule = rule;
return err;
}
-int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
{
struct fib_rule_hdr *frh = nlmsg_data(nlh);
struct fib_rules_ops *ops = NULL;
struct fib_rule *rule, *r, *last = NULL;
struct nlattr *tb[FRA_MAX+1];
- int err = -EINVAL;
+ int err = -EINVAL, unresolved = 0;
if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*frh)))
goto errout;
if (!rule->pref && ops->default_pref)
rule->pref = ops->default_pref();
+ err = -EINVAL;
+ if (tb[FRA_GOTO]) {
+ if (rule->action != FR_ACT_GOTO)
+ goto errout_free;
+
+ rule->target = nla_get_u32(tb[FRA_GOTO]);
+ /* Backward jumps are prohibited to avoid endless loops */
+ if (rule->target <= rule->pref)
+ goto errout_free;
+
+ list_for_each_entry(r, ops->rules_list, list) {
+ if (r->pref == rule->target) {
+ rule->ctarget = r;
+ break;
+ }
+ }
+
+ if (rule->ctarget == NULL)
+ unresolved = 1;
+ } else if (rule->action == FR_ACT_GOTO)
+ goto errout_free;
+
err = ops->configure(rule, skb, nlh, frh, tb);
if (err < 0)
goto errout_free;
fib_rule_get(rule);
+ if (ops->unresolved_rules) {
+ /*
+ * There are unresolved goto rules in the list, check if
+ * any of them are pointing to this new rule.
+ */
+ list_for_each_entry(r, ops->rules_list, list) {
+ if (r->action == FR_ACT_GOTO &&
+ r->target == rule->pref) {
+ BUG_ON(r->ctarget != NULL);
+ rcu_assign_pointer(r->ctarget, rule);
+ if (--ops->unresolved_rules == 0)
+ break;
+ }
+ }
+ }
+
+ if (rule->action == FR_ACT_GOTO)
+ ops->nr_goto_rules++;
+
+ if (unresolved)
+ ops->unresolved_rules++;
+
if (last)
list_add_rcu(&rule->list, &last->list);
else
list_add_rcu(&rule->list, ops->rules_list);
notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).pid);
+ flush_route_cache(ops);
rules_ops_put(ops);
return 0;
return err;
}
-int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
{
struct fib_rule_hdr *frh = nlmsg_data(nlh);
struct fib_rules_ops *ops = NULL;
- struct fib_rule *rule;
+ struct fib_rule *rule, *tmp;
struct nlattr *tb[FRA_MAX+1];
int err = -EINVAL;
}
list_del_rcu(&rule->list);
+
+ if (rule->action == FR_ACT_GOTO)
+ ops->nr_goto_rules--;
+
+ /*
+ * Check if this rule is a target to any of them. If so,
+ * disable them. As this operation is eventually very
+ * expensive, it is only performed if goto rules have
+ * actually been added.
+ */
+ if (ops->nr_goto_rules > 0) {
+ list_for_each_entry(tmp, ops->rules_list, list) {
+ if (tmp->ctarget == rule) {
+ rcu_assign_pointer(tmp->ctarget, NULL);
+ ops->unresolved_rules++;
+ }
+ }
+ }
+
synchronize_rcu();
notify_rule_change(RTM_DELRULE, rule, ops, nlh,
NETLINK_CB(skb).pid);
fib_rule_put(rule);
+ flush_route_cache(ops);
rules_ops_put(ops);
return 0;
}
frh->action = rule->action;
frh->flags = rule->flags;
- if (rule->ifname[0])
+ if (rule->action == FR_ACT_GOTO && rule->ctarget == NULL)
+ frh->flags |= FIB_RULE_UNRESOLVED;
+
+ if (rule->ifname[0]) {
NLA_PUT_STRING(skb, FRA_IFNAME, rule->ifname);
+ if (rule->ifindex == -1)
+ frh->flags |= FIB_RULE_DEV_DETACHED;
+ }
+
if (rule->pref)
NLA_PUT_U32(skb, FRA_PRIORITY, rule->pref);
if (rule->mark_mask || rule->mark)
NLA_PUT_U32(skb, FRA_FWMASK, rule->mark_mask);
+ if (rule->target)
+ NLA_PUT_U32(skb, FRA_GOTO, rule->target);
+
if (ops->fill(rule, skb, nlh, frh) < 0)
goto nla_put_failure;
return -EMSGSIZE;
}
-int fib_rules_dump(struct sk_buff *skb, struct netlink_callback *cb, int family)
+static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb,
+ struct fib_rules_ops *ops)
{
int idx = 0;
struct fib_rule *rule;
- struct fib_rules_ops *ops;
-
- ops = lookup_rules_ops(family);
- if (ops == NULL)
- return -EAFNOSUPPORT;
- rcu_read_lock();
- list_for_each_entry_rcu(rule, ops->rules_list, list) {
- if (idx < cb->args[0])
+ list_for_each_entry(rule, ops->rules_list, list) {
+ if (idx < cb->args[1])
goto skip;
if (fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).pid,
skip:
idx++;
}
- rcu_read_unlock();
- cb->args[0] = idx;
+ cb->args[1] = idx;
rules_ops_put(ops);
return skb->len;
}
-EXPORT_SYMBOL_GPL(fib_rules_dump);
+static int fib_nl_dumprule(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct fib_rules_ops *ops;
+ int idx = 0, family;
+
+ family = rtnl_msg_family(cb->nlh);
+ if (family != AF_UNSPEC) {
+ /* Protocol specific dump request */
+ ops = lookup_rules_ops(family);
+ if (ops == NULL)
+ return -EAFNOSUPPORT;
+
+ return dump_rules(skb, cb, ops);
+ }
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(ops, &rules_ops, list) {
+ if (idx < cb->args[0] || !try_module_get(ops->owner))
+ goto skip;
+
+ if (dump_rules(skb, cb, ops) < 0)
+ break;
+
+ cb->args[1] = 0;
+ skip:
+ idx++;
+ }
+ rcu_read_unlock();
+ cb->args[0] = idx;
+
+ return skb->len;
+}
static void notify_rule_change(int event, struct fib_rule *rule,
struct fib_rules_ops *ops, struct nlmsghdr *nlh,
static int __init fib_rules_init(void)
{
+ rtnl_register(PF_UNSPEC, RTM_NEWRULE, fib_nl_newrule, NULL);
+ rtnl_register(PF_UNSPEC, RTM_DELRULE, fib_nl_delrule, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETRULE, NULL, fib_nl_dumprule);
+
return register_netdevice_notifier(&fib_rules_notifier);
}
u8 *ptr = NULL;
if (k >= SKF_NET_OFF)
- ptr = skb->nh.raw + k - SKF_NET_OFF;
+ ptr = skb_network_header(skb) + k - SKF_NET_OFF;
else if (k >= SKF_LL_OFF)
- ptr = skb->mac.raw + k - SKF_LL_OFF;
+ ptr = skb_mac_header(skb) + k - SKF_LL_OFF;
- if (ptr >= skb->head && ptr < skb->tail)
+ if (ptr >= skb->head && ptr < skb_tail_pointer(skb))
return ptr;
return NULL;
}
spin_lock_bh(lock);
d->lock = lock;
if (type)
- d->tail = (struct rtattr *) skb->tail;
+ d->tail = (struct rtattr *)skb_tail_pointer(skb);
d->skb = skb;
d->compat_tc_stats = tc_stats_type;
d->compat_xstats = xstats_type;
gnet_stats_finish_copy(struct gnet_dump *d)
{
if (d->tail)
- d->tail->rta_len = d->skb->tail - (u8 *) d->tail;
+ d->tail->rta_len = skb_tail_pointer(d->skb) - (u8 *)d->tail;
if (d->compat_tc_stats)
if (gnet_stats_copy(d, d->compat_tc_stats, &d->tc_stats,
case IF_LINK_MODE_DEFAULT:
default:
break;
- };
+ }
dev->operstate = operstate;
{
struct net_device *dev = skb->dev;
- __skb_pull(skb, skb->nh.raw - skb->data);
+ __skb_pull(skb, skb_network_offset(skb));
if (dev->hard_header &&
dev->hard_header(skb, dev, ntohs(skb->protocol), NULL, NULL,
if (!dst || !(neigh = dst->neighbour))
goto discard;
- __skb_pull(skb, skb->nh.raw - skb->data);
+ __skb_pull(skb, skb_network_offset(skb));
if (!neigh_event_send(neigh, skb)) {
int err;
struct neighbour *neigh = dst->neighbour;
struct net_device *dev = neigh->dev;
- __skb_pull(skb, skb->nh.raw - skb->data);
+ __skb_pull(skb, skb_network_offset(skb));
read_lock_bh(&neigh->lock);
err = dev->hard_header(skb, dev, ntohs(skb->protocol),
return 0;
}
-int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
struct ndmsg *ndm;
struct nlattr *dst_attr;
return err;
}
-int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
struct ndmsg *ndm;
struct nlattr *tb[NDA_MAX+1];
[NDTPA_LOCKTIME] = { .type = NLA_U64 },
};
-int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
struct neigh_table *tbl;
struct ndtmsg *ndtmsg;
return err;
}
-int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
+static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
{
int family, tidx, nidx = 0;
int tbl_skip = cb->args[0];
return rc;
}
-int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
+static int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
{
struct neigh_table *tbl;
int t, family, s_t;
return 0;
}
-static struct seq_operations neigh_stat_seq_ops = {
+static const struct seq_operations neigh_stat_seq_ops = {
.start = neigh_stat_seq_start,
.next = neigh_stat_seq_next,
.stop = neigh_stat_seq_stop,
#endif /* CONFIG_SYSCTL */
+static int __init neigh_init(void)
+{
+ rtnl_register(PF_UNSPEC, RTM_NEWNEIGH, neigh_add, NULL);
+ rtnl_register(PF_UNSPEC, RTM_DELNEIGH, neigh_delete, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETNEIGH, NULL, neigh_dump_info);
+
+ rtnl_register(PF_UNSPEC, RTM_GETNEIGHTBL, NULL, neightbl_dump_info);
+ rtnl_register(PF_UNSPEC, RTM_SETNEIGHTBL, neightbl_set, NULL);
+
+ return 0;
+}
+
+subsys_initcall(neigh_init);
+
EXPORT_SYMBOL(__neigh_event_send);
EXPORT_SYMBOL(neigh_changeaddr);
EXPORT_SYMBOL(neigh_compat_output);
EXPORT_SYMBOL(neigh_connected_output);
EXPORT_SYMBOL(neigh_create);
-EXPORT_SYMBOL(neigh_delete);
EXPORT_SYMBOL(neigh_destroy);
-EXPORT_SYMBOL(neigh_dump_info);
EXPORT_SYMBOL(neigh_event_ns);
EXPORT_SYMBOL(neigh_ifdown);
EXPORT_SYMBOL(neigh_lookup);
read_lock(&dev_base_lock);
if (dev_isalive(dev)) {
- if(dev->wireless_handlers &&
- dev->wireless_handlers->get_wireless_stats)
+ if (dev->wireless_handlers &&
+ dev->wireless_handlers->get_wireless_stats)
iw = dev->wireless_handlers->get_wireless_stats(dev);
if (iw != NULL)
ret = (*format)(iw, buf);
{
__wsum psum;
- if (uh->check == 0 || skb->ip_summed == CHECKSUM_UNNECESSARY)
+ if (uh->check == 0 || skb_csum_unnecessary(skb))
return 0;
psum = csum_tcpudp_nofold(saddr, daddr, ulen, IPPROTO_UDP, 0);
if (!skb)
return;
- memcpy(skb->data, msg, len);
+ skb_copy_to_linear_data(skb, msg, len);
skb->len += len;
- skb->h.uh = udph = (struct udphdr *) skb_push(skb, sizeof(*udph));
+ skb_push(skb, sizeof(*udph));
+ skb_reset_transport_header(skb);
+ udph = udp_hdr(skb);
udph->source = htons(np->local_port);
udph->dest = htons(np->remote_port);
udph->len = htons(udp_len);
if (udph->check == 0)
udph->check = CSUM_MANGLED_0;
- skb->nh.iph = iph = (struct iphdr *)skb_push(skb, sizeof(*iph));
+ skb_push(skb, sizeof(*iph));
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
/* iph->version = 4; iph->ihl = 5; */
put_unaligned(0x45, (unsigned char *)iph);
iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = eth->h_proto = htons(ETH_P_IP);
memcpy(eth->h_source, np->local_mac, 6);
memcpy(eth->h_dest, np->remote_mac, 6);
(2 * sizeof(u32)))))
return;
- skb->h.raw = skb->nh.raw = skb->data;
- arp = skb->nh.arph;
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ arp = arp_hdr(skb);
if ((arp->ar_hrd != htons(ARPHRD_ETHER) &&
arp->ar_hrd != htons(ARPHRD_IEEE802)) ||
if (!send_skb)
return;
- send_skb->nh.raw = send_skb->data;
+ skb_reset_network_header(send_skb);
arp = (struct arphdr *) skb_put(send_skb, size);
send_skb->dev = skb->dev;
send_skb->protocol = htons(ETH_P_ARP);
goto out;
/* check if netpoll clients need ARP */
- if (skb->protocol == __constant_htons(ETH_P_ARP) &&
+ if (skb->protocol == htons(ETH_P_ARP) &&
atomic_read(&trapped)) {
skb_queue_tail(&npi->arp_tx, skb);
return 1;
#define VERSION "pktgen v2.68: Packet Generator for packet performance testing.\n"
-/* #define PG_DEBUG(a) a */
-#define PG_DEBUG(a)
-
/* The buckets are exponential in 'width' */
#define LAT_BUCKETS_MAX 32
#define IP_NAME_SZ 32
#define MAX_MPLS_LABELS 16 /* This is the max label stack depth */
-#define MPLS_STACK_BOTTOM __constant_htonl(0x00000100)
+#define MPLS_STACK_BOTTOM htonl(0x00000100)
/* Device flag bits */
#define F_IPSRC_RND (1<<0) /* IP-Src Random */
};
struct pktgen_dev {
-
/*
* Try to keep frequent/infrequent used vars. separated.
*/
-
- char ifname[IFNAMSIZ];
- char result[512];
-
- struct pktgen_thread *pg_thread; /* the owner */
+ struct proc_dir_entry *entry; /* proc file */
+ struct pktgen_thread *pg_thread;/* the owner */
struct list_head list; /* Used for chaining in the thread's run-queue */
int running; /* if this changes to false, the test will stop */
unsigned cflows; /* Concurrent flows (config) */
unsigned lflow; /* Flow length (config) */
unsigned nflows; /* accumulated flows (stats) */
+
+ char result[512];
};
struct pktgen_hdr {
return tmp;
}
-static inline u32 pktgen_random(void)
-{
-#if 0
- __u32 n;
- get_random_bytes(&n, 4);
- return n;
-#else
- return net_random();
-#endif
-}
-
static inline __u64 getCurMs(void)
{
struct timeval tv;
static int pktgen_stop_device(struct pktgen_dev *pkt_dev);
static void pktgen_stop(struct pktgen_thread *t);
static void pktgen_clear_counters(struct pktgen_dev *pkt_dev);
-static int pktgen_mark_device(const char *ifname);
+
static unsigned int scan_ip6(const char *s, char ip[16]);
static unsigned int fmt_ip6(char *s, const char ip[16]);
" frags: %d delay: %u clone_skb: %d ifname: %s\n",
pkt_dev->nfrags,
1000 * pkt_dev->delay_us + pkt_dev->delay_ns,
- pkt_dev->clone_skb, pkt_dev->ifname);
+ pkt_dev->clone_skb, pkt_dev->odev->name);
seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows,
pkt_dev->lflow);
if (pkt_dev->nr_labels) {
unsigned i;
seq_printf(seq, " mpls: ");
- for(i = 0; i < pkt_dev->nr_labels; i++)
+ for (i = 0; i < pkt_dev->nr_labels; i++)
seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]),
i == pkt_dev->nr_labels-1 ? "\n" : ", ");
}
int i = 0;
*num = 0;
- for(; i < maxlen; i++) {
+ for (; i < maxlen; i++) {
char c;
*num <<= 4;
if (get_user(c, &user_buffer[i]))
break;
default:
goto done;
- };
+ }
}
done:
return i;
break;
default:
break;
- };
+ }
}
done_str:
return i;
n++;
if (n >= MAX_MPLS_LABELS)
return -E2BIG;
- } while(c == ',');
+ } while (c == ',');
pkt_dev->nr_labels = n;
return i;
if (len < 0) { return len; }
i += len;
offset = sprintf(pg_result, "OK: mpls=");
- for(n = 0; n < pkt_dev->nr_labels; n++)
+ for (n = 0; n < pkt_dev->nr_labels; n++)
offset += sprintf(pg_result + offset,
"%08x%s", ntohl(pkt_dev->labels[n]),
n == pkt_dev->nr_labels-1 ? "" : ",");
if_lock(t);
list_for_each_entry(pkt_dev, &t->if_list, list)
if (pkt_dev->running)
- seq_printf(seq, "%s ", pkt_dev->ifname);
+ seq_printf(seq, "%s ", pkt_dev->odev->name);
seq_printf(seq, "\nStopped: ");
list_for_each_entry(pkt_dev, &t->if_list, list)
if (!pkt_dev->running)
- seq_printf(seq, "%s ", pkt_dev->ifname);
+ seq_printf(seq, "%s ", pkt_dev->odev->name);
if (t->result[0])
seq_printf(seq, "\nResult: %s\n", t->result);
/*
* mark a device for removal
*/
-static int pktgen_mark_device(const char *ifname)
+static void pktgen_mark_device(const char *ifname)
{
struct pktgen_dev *pkt_dev = NULL;
const int max_tries = 10, msec_per_try = 125;
int i = 0;
- int ret = 0;
mutex_lock(&pktgen_thread_lock);
- PG_DEBUG(printk("pktgen: pktgen_mark_device marking %s for removal\n",
- ifname));
+ pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname);
while (1) {
break; /* success */
mutex_unlock(&pktgen_thread_lock);
- PG_DEBUG(printk("pktgen: pktgen_mark_device waiting for %s "
- "to disappear....\n", ifname));
+ pr_debug("pktgen: pktgen_mark_device waiting for %s "
+ "to disappear....\n", ifname);
schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try));
mutex_lock(&pktgen_thread_lock);
printk("pktgen_mark_device: timed out after waiting "
"%d msec for device %s to be removed\n",
msec_per_try * i, ifname);
- ret = 1;
break;
}
}
mutex_unlock(&pktgen_thread_lock);
+}
- return ret;
+static void pktgen_change_name(struct net_device *dev)
+{
+ struct pktgen_thread *t;
+
+ list_for_each_entry(t, &pktgen_threads, th_list) {
+ struct pktgen_dev *pkt_dev;
+
+ list_for_each_entry(pkt_dev, &t->if_list, list) {
+ if (pkt_dev->odev != dev)
+ continue;
+
+ remove_proc_entry(pkt_dev->entry->name, pg_proc_dir);
+
+ pkt_dev->entry = create_proc_entry(dev->name, 0600,
+ pg_proc_dir);
+ if (!pkt_dev->entry)
+ printk(KERN_ERR "pktgen: can't move proc "
+ " entry for '%s'\n", dev->name);
+ break;
+ }
+ }
}
static int pktgen_device_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
- struct net_device *dev = (struct net_device *)(ptr);
+ struct net_device *dev = ptr;
/* It is OK that we do not hold the group lock right now,
* as we run under the RTNL lock.
*/
switch (event) {
- case NETDEV_CHANGEADDR:
- case NETDEV_GOING_DOWN:
- case NETDEV_DOWN:
- case NETDEV_UP:
- /* Ignore for now */
+ case NETDEV_CHANGENAME:
+ pktgen_change_name(dev);
break;
case NETDEV_UNREGISTER:
pktgen_mark_device(dev->name);
break;
- };
+ }
return NOTIFY_DONE;
}
/* Associate pktgen_dev with a device. */
-static struct net_device *pktgen_setup_dev(struct pktgen_dev *pkt_dev)
+static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname)
{
struct net_device *odev;
+ int err;
/* Clean old setups */
-
if (pkt_dev->odev) {
dev_put(pkt_dev->odev);
pkt_dev->odev = NULL;
}
- odev = dev_get_by_name(pkt_dev->ifname);
-
+ odev = dev_get_by_name(ifname);
if (!odev) {
- printk("pktgen: no such netdevice: \"%s\"\n", pkt_dev->ifname);
- goto out;
+ printk("pktgen: no such netdevice: \"%s\"\n", ifname);
+ return -ENODEV;
}
+
if (odev->type != ARPHRD_ETHER) {
- printk("pktgen: not an ethernet device: \"%s\"\n",
- pkt_dev->ifname);
- goto out_put;
- }
- if (!netif_running(odev)) {
- printk("pktgen: device is down: \"%s\"\n", pkt_dev->ifname);
- goto out_put;
+ printk("pktgen: not an ethernet device: \"%s\"\n", ifname);
+ err = -EINVAL;
+ } else if (!netif_running(odev)) {
+ printk("pktgen: device is down: \"%s\"\n", ifname);
+ err = -ENETDOWN;
+ } else {
+ pkt_dev->odev = odev;
+ return 0;
}
- pkt_dev->odev = odev;
- return pkt_dev->odev;
-
-out_put:
dev_put(odev);
-out:
- return NULL;
-
+ return err;
}
/* Read pkt_dev from the interface and set up internal pktgen_dev
*/
static void pktgen_setup_inject(struct pktgen_dev *pkt_dev)
{
- /* Try once more, just in case it works now. */
- if (!pkt_dev->odev)
- pktgen_setup_dev(pkt_dev);
-
if (!pkt_dev->odev) {
printk("pktgen: ERROR: pkt_dev->odev == NULL in setup_inject.\n");
sprintf(pkt_dev->result,
int flow = 0;
if (pkt_dev->cflows) {
- flow = pktgen_random() % pkt_dev->cflows;
+ flow = random32() % pkt_dev->cflows;
if (pkt_dev->flows[flow].count > pkt_dev->lflow)
pkt_dev->flows[flow].count = 0;
__u32 tmp;
if (pkt_dev->flags & F_MACSRC_RND)
- mc = pktgen_random() % (pkt_dev->src_mac_count);
+ mc = random32() % pkt_dev->src_mac_count;
else {
mc = pkt_dev->cur_src_mac_offset++;
if (pkt_dev->cur_src_mac_offset >
__u32 tmp;
if (pkt_dev->flags & F_MACDST_RND)
- mc = pktgen_random() % (pkt_dev->dst_mac_count);
+ mc = random32() % pkt_dev->dst_mac_count;
else {
mc = pkt_dev->cur_dst_mac_offset++;
if (pkt_dev->flags & F_MPLS_RND) {
unsigned i;
- for(i = 0; i < pkt_dev->nr_labels; i++)
+ for (i = 0; i < pkt_dev->nr_labels; i++)
if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM)
pkt_dev->labels[i] = MPLS_STACK_BOTTOM |
- ((__force __be32)pktgen_random() &
+ ((__force __be32)random32() &
htonl(0x000fffff));
}
if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) {
- pkt_dev->vlan_id = pktgen_random() % 4096;
+ pkt_dev->vlan_id = random32() & (4096-1);
}
if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) {
- pkt_dev->svlan_id = pktgen_random() % 4096;
+ pkt_dev->svlan_id = random32() & (4096 - 1);
}
if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) {
if (pkt_dev->flags & F_UDPSRC_RND)
- pkt_dev->cur_udp_src =
- ((pktgen_random() %
- (pkt_dev->udp_src_max - pkt_dev->udp_src_min)) +
- pkt_dev->udp_src_min);
+ pkt_dev->cur_udp_src = random32() %
+ (pkt_dev->udp_src_max - pkt_dev->udp_src_min)
+ + pkt_dev->udp_src_min;
else {
pkt_dev->cur_udp_src++;
if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) {
if (pkt_dev->flags & F_UDPDST_RND) {
- pkt_dev->cur_udp_dst =
- ((pktgen_random() %
- (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)) +
- pkt_dev->udp_dst_min);
+ pkt_dev->cur_udp_dst = random32() %
+ (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)
+ + pkt_dev->udp_dst_min;
} else {
pkt_dev->cur_udp_dst++;
if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max)
saddr_max))) {
__u32 t;
if (pkt_dev->flags & F_IPSRC_RND)
- t = ((pktgen_random() % (imx - imn)) + imn);
+ t = random32() % (imx - imn) + imn;
else {
t = ntohl(pkt_dev->cur_saddr);
t++;
__be32 s;
if (pkt_dev->flags & F_IPDST_RND) {
- t = pktgen_random() % (imx - imn) + imn;
+ t = random32() % (imx - imn) + imn;
s = htonl(t);
while (LOOPBACK(s) || MULTICAST(s)
|| BADCLASS(s) || ZERONET(s)
|| LOCAL_MCAST(s)) {
- t = (pktgen_random() %
- (imx - imn)) + imn;
+ t = random32() % (imx - imn) + imn;
s = htonl(t);
}
pkt_dev->cur_daddr = s;
for (i = 0; i < 4; i++) {
pkt_dev->cur_in6_daddr.s6_addr32[i] =
- (((__force __be32)pktgen_random() |
+ (((__force __be32)random32() |
pkt_dev->min_in6_daddr.s6_addr32[i]) &
pkt_dev->max_in6_daddr.s6_addr32[i]);
}
if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) {
__u32 t;
if (pkt_dev->flags & F_TXSIZE_RND) {
- t = ((pktgen_random() %
- (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size))
- + pkt_dev->min_pkt_size);
+ t = random32() %
+ (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size)
+ + pkt_dev->min_pkt_size;
} else {
t = pkt_dev->cur_pkt_size + 1;
if (t > pkt_dev->max_pkt_size)
static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev)
{
unsigned i;
- for(i = 0; i < pkt_dev->nr_labels; i++) {
+ for (i = 0; i < pkt_dev->nr_labels; i++) {
*mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM;
}
mpls--;
int datalen, iplen;
struct iphdr *iph;
struct pktgen_hdr *pgh = NULL;
- __be16 protocol = __constant_htons(ETH_P_IP);
+ __be16 protocol = htons(ETH_P_IP);
__be32 *mpls;
__be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */
__be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */
if (pkt_dev->nr_labels)
- protocol = __constant_htons(ETH_P_MPLS_UC);
+ protocol = htons(ETH_P_MPLS_UC);
if (pkt_dev->vlan_id != 0xffff)
- protocol = __constant_htons(ETH_P_8021Q);
+ protocol = htons(ETH_P_8021Q);
/* Update any of the values, used when we're incrementing various
* fields.
mpls_push(mpls, pkt_dev);
if (pkt_dev->vlan_id != 0xffff) {
- if(pkt_dev->svlan_id != 0xffff) {
+ if (pkt_dev->svlan_id != 0xffff) {
svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
*svlan_tci = build_tci(pkt_dev->svlan_id,
pkt_dev->svlan_cfi,
pkt_dev->svlan_p);
svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
- *svlan_encapsulated_proto = __constant_htons(ETH_P_8021Q);
+ *svlan_encapsulated_proto = htons(ETH_P_8021Q);
}
vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
*vlan_tci = build_tci(pkt_dev->vlan_id,
pkt_dev->vlan_cfi,
pkt_dev->vlan_p);
vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
- *vlan_encapsulated_proto = __constant_htons(ETH_P_IP);
+ *vlan_encapsulated_proto = htons(ETH_P_IP);
}
- iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr));
- udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
+ skb->network_header = skb->tail;
+ skb->transport_header = skb->network_header + sizeof(struct iphdr);
+ skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr));
+
+ iph = ip_hdr(skb);
+ udph = udp_hdr(skb);
memcpy(eth, pkt_dev->hh, 12);
*(__be16 *) & eth[12] = protocol;
iph->check = 0;
iph->check = ip_fast_csum((void *)iph, iph->ihl);
skb->protocol = protocol;
- skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32) -
- VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev);
+ skb->mac_header = (skb->network_header - ETH_HLEN -
+ pkt_dev->nr_labels * sizeof(u32) -
+ VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
skb->dev = odev;
skb->pkt_type = PACKET_HOST;
- skb->nh.iph = iph;
- skb->h.uh = udph;
if (pkt_dev->nfrags <= 0)
pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
int datalen;
struct ipv6hdr *iph;
struct pktgen_hdr *pgh = NULL;
- __be16 protocol = __constant_htons(ETH_P_IPV6);
+ __be16 protocol = htons(ETH_P_IPV6);
__be32 *mpls;
__be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */
__be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */
__be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */
if (pkt_dev->nr_labels)
- protocol = __constant_htons(ETH_P_MPLS_UC);
+ protocol = htons(ETH_P_MPLS_UC);
if (pkt_dev->vlan_id != 0xffff)
- protocol = __constant_htons(ETH_P_8021Q);
+ protocol = htons(ETH_P_8021Q);
/* Update any of the values, used when we're incrementing various
* fields.
mpls_push(mpls, pkt_dev);
if (pkt_dev->vlan_id != 0xffff) {
- if(pkt_dev->svlan_id != 0xffff) {
+ if (pkt_dev->svlan_id != 0xffff) {
svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
*svlan_tci = build_tci(pkt_dev->svlan_id,
pkt_dev->svlan_cfi,
pkt_dev->svlan_p);
svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
- *svlan_encapsulated_proto = __constant_htons(ETH_P_8021Q);
+ *svlan_encapsulated_proto = htons(ETH_P_8021Q);
}
vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16));
*vlan_tci = build_tci(pkt_dev->vlan_id,
pkt_dev->vlan_cfi,
pkt_dev->vlan_p);
vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16));
- *vlan_encapsulated_proto = __constant_htons(ETH_P_IPV6);
+ *vlan_encapsulated_proto = htons(ETH_P_IPV6);
}
- iph = (struct ipv6hdr *)skb_put(skb, sizeof(struct ipv6hdr));
- udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
+ skb->network_header = skb->tail;
+ skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
+ skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr));
+
+ iph = ipv6_hdr(skb);
+ udph = udp_hdr(skb);
memcpy(eth, pkt_dev->hh, 12);
*(__be16 *) & eth[12] = protocol;
udph->len = htons(datalen + sizeof(struct udphdr));
udph->check = 0; /* No checksum */
- *(__be32 *) iph = __constant_htonl(0x60000000); /* Version + flow */
+ *(__be32 *) iph = htonl(0x60000000); /* Version + flow */
if (pkt_dev->traffic_class) {
/* Version + traffic class + flow (0) */
ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr);
ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr);
- skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32) -
- VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev);
+ skb->mac_header = (skb->network_header - ETH_HLEN -
+ pkt_dev->nr_labels * sizeof(u32) -
+ VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
skb->protocol = protocol;
skb->dev = odev;
skb->pkt_type = PACKET_HOST;
- skb->nh.ipv6h = iph;
- skb->h.uh = udph;
if (pkt_dev->nfrags <= 0)
pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
struct pktgen_dev *pkt_dev;
int started = 0;
- PG_DEBUG(printk("pktgen: entering pktgen_run. %p\n", t));
+ pr_debug("pktgen: entering pktgen_run. %p\n", t);
if_lock(t);
list_for_each_entry(pkt_dev, &t->if_list, list) {
{
struct pktgen_thread *t;
- PG_DEBUG(printk("pktgen: entering pktgen_stop_all_threads_ifs.\n"));
+ pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n");
mutex_lock(&pktgen_thread_lock);
{
struct pktgen_thread *t;
- PG_DEBUG(printk("pktgen: entering pktgen_run_all_threads.\n"));
+ pr_debug("pktgen: entering pktgen_run_all_threads.\n");
mutex_lock(&pktgen_thread_lock);
if (!pkt_dev->running) {
printk("pktgen: interface: %s is already stopped\n",
- pkt_dev->ifname);
+ pkt_dev->odev->name);
return -EINVAL;
}
{
struct pktgen_dev *pkt_dev;
- PG_DEBUG(printk("pktgen: entering pktgen_stop\n"));
+ pr_debug("pktgen: entering pktgen_stop\n");
if_lock(t);
struct list_head *q, *n;
struct pktgen_dev *cur;
- PG_DEBUG(printk("pktgen: entering pktgen_rem_one_if\n"));
+ pr_debug("pktgen: entering pktgen_rem_one_if\n");
if_lock(t);
/* Remove all devices, free mem */
- PG_DEBUG(printk("pktgen: entering pktgen_rem_all_ifs\n"));
+ pr_debug("pktgen: entering pktgen_rem_all_ifs\n");
if_lock(t);
list_for_each_safe(q, n, &t->if_list) {
t->pid = current->pid;
- PG_DEBUG(printk("pktgen: starting pktgen/%d: pid=%d\n", cpu, current->pid));
+ pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, current->pid);
max_before_softirq = t->max_before_softirq;
set_current_state(TASK_INTERRUPTIBLE);
}
- PG_DEBUG(printk("pktgen: %s stopping all device\n", t->tsk->comm));
+ pr_debug("pktgen: %s stopping all device\n", t->tsk->comm);
pktgen_stop(t);
- PG_DEBUG(printk("pktgen: %s removing all device\n", t->tsk->comm));
+ pr_debug("pktgen: %s removing all device\n", t->tsk->comm);
pktgen_rem_all_ifs(t);
- PG_DEBUG(printk("pktgen: %s removing thread.\n", t->tsk->comm));
+ pr_debug("pktgen: %s removing thread.\n", t->tsk->comm);
pktgen_rem_thread(t);
return 0;
if_lock(t);
list_for_each_entry(p, &t->if_list, list)
- if (strncmp(p->ifname, ifname, IFNAMSIZ) == 0) {
+ if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) {
pkt_dev = p;
break;
}
if_unlock(t);
- PG_DEBUG(printk("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev));
+ pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev);
return pkt_dev;
}
static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
{
struct pktgen_dev *pkt_dev;
- struct proc_dir_entry *pe;
+ int err;
/* We don't allow a device to be on several threads */
pkt_dev->svlan_cfi = 0;
pkt_dev->svlan_id = 0xffff;
- strncpy(pkt_dev->ifname, ifname, IFNAMSIZ);
+ err = pktgen_setup_dev(pkt_dev, ifname);
+ if (err)
+ goto out1;
- if (!pktgen_setup_dev(pkt_dev)) {
- printk("pktgen: ERROR: pktgen_setup_dev failed.\n");
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
- kfree(pkt_dev);
- return -ENODEV;
- }
-
- pe = create_proc_entry(ifname, 0600, pg_proc_dir);
- if (!pe) {
+ pkt_dev->entry = create_proc_entry(ifname, 0600, pg_proc_dir);
+ if (!pkt_dev->entry) {
printk("pktgen: cannot create %s/%s procfs entry.\n",
PG_PROC_DIR, ifname);
- if (pkt_dev->flows)
- vfree(pkt_dev->flows);
- kfree(pkt_dev);
- return -EINVAL;
+ err = -EINVAL;
+ goto out2;
}
- pe->proc_fops = &pktgen_if_fops;
- pe->data = pkt_dev;
+ pkt_dev->entry->proc_fops = &pktgen_if_fops;
+ pkt_dev->entry->data = pkt_dev;
return add_dev_to_thread(t, pkt_dev);
+out2:
+ dev_put(pkt_dev->odev);
+out1:
+ if (pkt_dev->flows)
+ vfree(pkt_dev->flows);
+ kfree(pkt_dev);
+ return err;
}
static int __init pktgen_create_thread(int cpu)
struct pktgen_dev *pkt_dev)
{
- PG_DEBUG(printk("pktgen: remove_device pkt_dev=%p\n", pkt_dev));
+ pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev);
if (pkt_dev->running) {
printk("pktgen:WARNING: trying to remove a running interface, stopping it now.\n");
_rem_dev_from_if_list(t, pkt_dev);
- /* Clean up proc file system */
-
- remove_proc_entry(pkt_dev->ifname, pg_proc_dir);
+ if (pkt_dev->entry)
+ remove_proc_entry(pkt_dev->entry->name, pg_proc_dir);
if (pkt_dev->flows)
vfree(pkt_dev->flows);
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <net/fib_rules.h>
-#include <net/netlink.h>
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-#endif /* CONFIG_NET_WIRELESS_RTNETLINK */
+#include <net/rtnetlink.h>
+
+struct rtnl_link
+{
+ rtnl_doit_func doit;
+ rtnl_dumpit_func dumpit;
+};
static DEFINE_MUTEX(rtnl_mutex);
static struct sock *rtnl;
return 0;
}
-struct rtnetlink_link * rtnetlink_links[NPROTO];
+static struct rtnl_link *rtnl_msg_handlers[NPROTO];
+
+static inline int rtm_msgindex(int msgtype)
+{
+ int msgindex = msgtype - RTM_BASE;
+
+ /*
+ * msgindex < 0 implies someone tried to register a netlink
+ * control code. msgindex >= RTM_NR_MSGTYPES may indicate that
+ * the message type has not been added to linux/rtnetlink.h
+ */
+ BUG_ON(msgindex < 0 || msgindex >= RTM_NR_MSGTYPES);
+
+ return msgindex;
+}
+
+static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
+{
+ struct rtnl_link *tab;
+
+ tab = rtnl_msg_handlers[protocol];
+ if (tab == NULL || tab[msgindex].doit == NULL)
+ tab = rtnl_msg_handlers[PF_UNSPEC];
+
+ return tab ? tab[msgindex].doit : NULL;
+}
+
+static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
+{
+ struct rtnl_link *tab;
+
+ tab = rtnl_msg_handlers[protocol];
+ if (tab == NULL || tab[msgindex].dumpit == NULL)
+ tab = rtnl_msg_handlers[PF_UNSPEC];
+
+ return tab ? tab[msgindex].dumpit : NULL;
+}
+
+/**
+ * __rtnl_register - Register a rtnetlink message type
+ * @protocol: Protocol family or PF_UNSPEC
+ * @msgtype: rtnetlink message type
+ * @doit: Function pointer called for each request message
+ * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message
+ *
+ * Registers the specified function pointers (at least one of them has
+ * to be non-NULL) to be called whenever a request message for the
+ * specified protocol family and message type is received.
+ *
+ * The special protocol family PF_UNSPEC may be used to define fallback
+ * function pointers for the case when no entry for the specific protocol
+ * family exists.
+ *
+ * Returns 0 on success or a negative error code.
+ */
+int __rtnl_register(int protocol, int msgtype,
+ rtnl_doit_func doit, rtnl_dumpit_func dumpit)
+{
+ struct rtnl_link *tab;
+ int msgindex;
+
+ BUG_ON(protocol < 0 || protocol >= NPROTO);
+ msgindex = rtm_msgindex(msgtype);
+
+ tab = rtnl_msg_handlers[protocol];
+ if (tab == NULL) {
+ tab = kcalloc(RTM_NR_MSGTYPES, sizeof(*tab), GFP_KERNEL);
+ if (tab == NULL)
+ return -ENOBUFS;
+
+ rtnl_msg_handlers[protocol] = tab;
+ }
+
+ if (doit)
+ tab[msgindex].doit = doit;
+
+ if (dumpit)
+ tab[msgindex].dumpit = dumpit;
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(__rtnl_register);
+
+/**
+ * rtnl_register - Register a rtnetlink message type
+ *
+ * Identical to __rtnl_register() but panics on failure. This is useful
+ * as failure of this function is very unlikely, it can only happen due
+ * to lack of memory when allocating the chain to store all message
+ * handlers for a protocol. Meant for use in init functions where lack
+ * of memory implies no sense in continueing.
+ */
+void rtnl_register(int protocol, int msgtype,
+ rtnl_doit_func doit, rtnl_dumpit_func dumpit)
+{
+ if (__rtnl_register(protocol, msgtype, doit, dumpit) < 0)
+ panic("Unable to register rtnetlink message handler, "
+ "protocol = %d, message type = %d\n",
+ protocol, msgtype);
+}
+
+EXPORT_SYMBOL_GPL(rtnl_register);
+
+/**
+ * rtnl_unregister - Unregister a rtnetlink message type
+ * @protocol: Protocol family or PF_UNSPEC
+ * @msgtype: rtnetlink message type
+ *
+ * Returns 0 on success or a negative error code.
+ */
+int rtnl_unregister(int protocol, int msgtype)
+{
+ int msgindex;
+
+ BUG_ON(protocol < 0 || protocol >= NPROTO);
+ msgindex = rtm_msgindex(msgtype);
+
+ if (rtnl_msg_handlers[protocol] == NULL)
+ return -ENOENT;
+
+ rtnl_msg_handlers[protocol][msgindex].doit = NULL;
+ rtnl_msg_handlers[protocol][msgindex].dumpit = NULL;
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(rtnl_unregister);
+
+/**
+ * rtnl_unregister_all - Unregister all rtnetlink message type of a protocol
+ * @protocol : Protocol family or PF_UNSPEC
+ *
+ * Identical to calling rtnl_unregster() for all registered message types
+ * of a certain protocol family.
+ */
+void rtnl_unregister_all(int protocol)
+{
+ BUG_ON(protocol < 0 || protocol >= NPROTO);
+
+ kfree(rtnl_msg_handlers[protocol]);
+ rtnl_msg_handlers[protocol] = NULL;
+}
+
+EXPORT_SYMBOL_GPL(rtnl_unregister_all);
static const int rtm_min[RTM_NR_FAMILIES] =
{
operstate == IF_OPER_UNKNOWN)
operstate = IF_OPER_DORMANT;
break;
- };
+ }
if (dev->operstate != operstate) {
write_lock_bh(&dev_base_lock);
int s_idx = cb->args[0];
struct net_device *dev;
- read_lock(&dev_base_lock);
for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) {
if (idx < s_idx)
continue;
cb->nlh->nlmsg_seq, 0, NLM_F_MULTI) <= 0)
break;
}
- read_unlock(&dev_base_lock);
cb->args[0] = idx;
return skb->len;
modified = 1;
}
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
- if (tb[IFLA_WIRELESS]) {
- /* Call Wireless Extensions.
- * Various stuff checked in there... */
- err = wireless_rtnetlink_set(dev, nla_data(tb[IFLA_WIRELESS]),
- nla_len(tb[IFLA_WIRELESS]));
- if (err < 0)
- goto errout_dev;
- }
-#endif /* CONFIG_NET_WIRELESS_RTNETLINK */
-
if (tb[IFLA_BROADCAST]) {
nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
send_addr_notify = 1;
} else
return -EINVAL;
-
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
- if (tb[IFLA_WIRELESS]) {
- /* Call Wireless Extensions. We need to know the size before
- * we can alloc. Various stuff checked in there... */
- err = wireless_rtnetlink_get(dev, nla_data(tb[IFLA_WIRELESS]),
- nla_len(tb[IFLA_WIRELESS]),
- &iw_buf, &iw_buf_len);
- if (err < 0)
- goto errout;
-
- /* Payload is at an offset in buffer */
- iw = iw_buf + IW_EV_POINT_OFF;
- }
-#endif /* CONFIG_NET_WIRELESS_RTNETLINK */
-
nskb = nlmsg_new(if_nlmsg_size(iw_buf_len), GFP_KERNEL);
if (nskb == NULL) {
err = -ENOBUFS;
int type = cb->nlh->nlmsg_type-RTM_BASE;
if (idx < s_idx || idx == PF_PACKET)
continue;
- if (rtnetlink_links[idx] == NULL ||
- rtnetlink_links[idx][type].dumpit == NULL)
+ if (rtnl_msg_handlers[idx] == NULL ||
+ rtnl_msg_handlers[idx][type].dumpit == NULL)
continue;
if (idx > s_idx)
memset(&cb->args[0], 0, sizeof(cb->args));
- if (rtnetlink_links[idx][type].dumpit(skb, cb))
+ if (rtnl_msg_handlers[idx][type].dumpit(skb, cb))
break;
}
cb->family = idx;
/* Process one rtnetlink message. */
-static __inline__ int
-rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
+static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
- struct rtnetlink_link *link;
- struct rtnetlink_link *link_tab;
+ rtnl_doit_func doit;
int sz_idx, kind;
int min_len;
int family;
int type;
int err;
- /* Only requests are handled by kernel now */
- if (!(nlh->nlmsg_flags&NLM_F_REQUEST))
- return 0;
-
type = nlh->nlmsg_type;
-
- /* A control message: ignore them */
- if (type < RTM_BASE)
- return 0;
-
- /* Unknown message: reply with EINVAL */
if (type > RTM_MAX)
- goto err_inval;
+ return -EOPNOTSUPP;
type -= RTM_BASE;
return 0;
family = ((struct rtgenmsg*)NLMSG_DATA(nlh))->rtgen_family;
- if (family >= NPROTO) {
- *errp = -EAFNOSUPPORT;
- return -1;
- }
-
- link_tab = rtnetlink_links[family];
- if (link_tab == NULL)
- link_tab = rtnetlink_links[PF_UNSPEC];
- link = &link_tab[type];
+ if (family >= NPROTO)
+ return -EAFNOSUPPORT;
sz_idx = type>>2;
kind = type&3;
- if (kind != 2 && security_netlink_recv(skb, CAP_NET_ADMIN)) {
- *errp = -EPERM;
- return -1;
- }
+ if (kind != 2 && security_netlink_recv(skb, CAP_NET_ADMIN))
+ return -EPERM;
if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
- if (link->dumpit == NULL)
- link = &(rtnetlink_links[PF_UNSPEC][type]);
-
- if (link->dumpit == NULL)
- goto err_inval;
+ rtnl_dumpit_func dumpit;
- if ((*errp = netlink_dump_start(rtnl, skb, nlh,
- link->dumpit, NULL)) != 0) {
- return -1;
- }
+ dumpit = rtnl_get_dumpit(family, type);
+ if (dumpit == NULL)
+ return -EOPNOTSUPP;
- netlink_queue_skip(nlh, skb);
- return -1;
+ __rtnl_unlock();
+ err = netlink_dump_start(rtnl, skb, nlh, dumpit, NULL);
+ rtnl_lock();
+ return err;
}
memset(rta_buf, 0, (rtattr_max * sizeof(struct rtattr *)));
min_len = rtm_min[sz_idx];
if (nlh->nlmsg_len < min_len)
- goto err_inval;
+ return -EINVAL;
if (nlh->nlmsg_len > min_len) {
int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
unsigned flavor = attr->rta_type;
if (flavor) {
if (flavor > rta_max[sz_idx])
- goto err_inval;
+ return -EINVAL;
rta_buf[flavor-1] = attr;
}
attr = RTA_NEXT(attr, attrlen);
}
}
- if (link->doit == NULL)
- link = &(rtnetlink_links[PF_UNSPEC][type]);
- if (link->doit == NULL)
- goto err_inval;
- err = link->doit(skb, nlh, (void *)&rta_buf[0]);
+ doit = rtnl_get_doit(family, type);
+ if (doit == NULL)
+ return -EOPNOTSUPP;
- *errp = err;
- return err;
-
-err_inval:
- *errp = -EINVAL;
- return -1;
+ return doit(skb, nlh, (void *)&rta_buf[0]);
}
static void rtnetlink_rcv(struct sock *sk, int len)
} while (qlen);
}
-static struct rtnetlink_link link_rtnetlink_table[RTM_NR_MSGTYPES] =
-{
- [RTM_GETLINK - RTM_BASE] = { .doit = rtnl_getlink,
- .dumpit = rtnl_dump_ifinfo },
- [RTM_SETLINK - RTM_BASE] = { .doit = rtnl_setlink },
- [RTM_GETADDR - RTM_BASE] = { .dumpit = rtnl_dump_all },
- [RTM_GETROUTE - RTM_BASE] = { .dumpit = rtnl_dump_all },
- [RTM_NEWNEIGH - RTM_BASE] = { .doit = neigh_add },
- [RTM_DELNEIGH - RTM_BASE] = { .doit = neigh_delete },
- [RTM_GETNEIGH - RTM_BASE] = { .dumpit = neigh_dump_info },
-#ifdef CONFIG_FIB_RULES
- [RTM_NEWRULE - RTM_BASE] = { .doit = fib_nl_newrule },
- [RTM_DELRULE - RTM_BASE] = { .doit = fib_nl_delrule },
-#endif
- [RTM_GETRULE - RTM_BASE] = { .dumpit = rtnl_dump_all },
- [RTM_GETNEIGHTBL - RTM_BASE] = { .dumpit = neightbl_dump_info },
- [RTM_SETNEIGHTBL - RTM_BASE] = { .doit = neightbl_set },
-};
-
static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
{
struct net_device *dev = ptr;
panic("rtnetlink_init: cannot allocate rta_buf\n");
rtnl = netlink_kernel_create(NETLINK_ROUTE, RTNLGRP_MAX, rtnetlink_rcv,
- THIS_MODULE);
+ &rtnl_mutex, THIS_MODULE);
if (rtnl == NULL)
panic("rtnetlink_init: cannot initialize rtnetlink\n");
netlink_set_nonroot(NETLINK_ROUTE, NL_NONROOT_RECV);
register_netdevice_notifier(&rtnetlink_dev_notifier);
- rtnetlink_links[PF_UNSPEC] = link_rtnetlink_table;
- rtnetlink_links[PF_PACKET] = link_rtnetlink_table;
+
+ rtnl_register(PF_UNSPEC, RTM_GETLINK, rtnl_getlink, rtnl_dump_ifinfo);
+ rtnl_register(PF_UNSPEC, RTM_SETLINK, rtnl_setlink, NULL);
+
+ rtnl_register(PF_UNSPEC, RTM_GETADDR, NULL, rtnl_dump_all);
+ rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all);
}
EXPORT_SYMBOL(__rta_fill);
EXPORT_SYMBOL(rtattr_strlcpy);
EXPORT_SYMBOL(rtattr_parse);
-EXPORT_SYMBOL(rtnetlink_links);
EXPORT_SYMBOL(rtnetlink_put_metrics);
EXPORT_SYMBOL(rtnl_lock);
EXPORT_SYMBOL(rtnl_trylock);
#include <linux/cache.h>
#include <linux/rtnetlink.h>
#include <linux/init.h>
+#include <linux/scatterlist.h>
#include <net/protocol.h>
#include <net/dst.h>
void skb_over_panic(struct sk_buff *skb, int sz, void *here)
{
printk(KERN_EMERG "skb_over_panic: text:%p len:%d put:%d head:%p "
- "data:%p tail:%p end:%p dev:%s\n",
- here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
+ "data:%p tail:%#lx end:%#lx dev:%s\n",
+ here, skb->len, sz, skb->head, skb->data,
+ (unsigned long)skb->tail, (unsigned long)skb->end,
skb->dev ? skb->dev->name : "<NULL>");
BUG();
}
void skb_under_panic(struct sk_buff *skb, int sz, void *here)
{
printk(KERN_EMERG "skb_under_panic: text:%p len:%d put:%d head:%p "
- "data:%p tail:%p end:%p dev:%s\n",
- here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
+ "data:%p tail:%#lx end:%#lx dev:%s\n",
+ here, skb->len, sz, skb->head, skb->data,
+ (unsigned long)skb->tail, (unsigned long)skb->end,
skb->dev ? skb->dev->name : "<NULL>");
BUG();
}
if (!skb)
goto out;
- /* Get the DATA. Size must match skb_add_mtu(). */
size = SKB_DATA_ALIGN(size);
data = kmalloc_node_track_caller(size + sizeof(struct skb_shared_info),
gfp_mask, node);
if (!data)
goto nodata;
- memset(skb, 0, offsetof(struct sk_buff, truesize));
+ /*
+ * See comment in sk_buff definition, just before the 'tail' member
+ */
+ memset(skb, 0, offsetof(struct sk_buff, tail));
skb->truesize = size + sizeof(struct sk_buff);
atomic_set(&skb->users, 1);
skb->head = data;
skb->data = data;
- skb->tail = data;
- skb->end = data + size;
+ skb_reset_tail_pointer(skb);
+ skb->end = skb->tail + size;
/* make sure we initialize shinfo sequentially */
shinfo = skb_shinfo(skb);
atomic_set(&shinfo->dataref, 1);
if (atomic_dec_and_test(fclone_ref))
kmem_cache_free(skbuff_fclone_cache, other);
break;
- };
+ }
}
/**
WARN_ON(in_irq());
skb->destructor(skb);
}
-#ifdef CONFIG_NETFILTER
- nf_conntrack_put(skb->nfct);
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ nf_conntrack_put(skb->nfct);
nf_conntrack_put_reasm(skb->nfct_reasm);
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
nf_bridge_put(skb->nf_bridge);
#endif
-#endif
/* XXX: IS this still necessary? - JHS */
#ifdef CONFIG_NET_SCHED
skb->tc_index = 0;
n->sk = NULL;
C(tstamp);
C(dev);
- C(h);
- C(nh);
- C(mac);
+ C(transport_header);
+ C(network_header);
+ C(mac_header);
C(dst);
dst_clone(skb->dst);
C(sp);
C(protocol);
n->destructor = NULL;
C(mark);
-#ifdef CONFIG_NETFILTER
- C(nfct);
- nf_conntrack_get(skb->nfct);
- C(nfctinfo);
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
- C(nfct_reasm);
- nf_conntrack_get_reasm(skb->nfct_reasm);
-#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
- C(nf_bridge);
- nf_bridge_get(skb->nf_bridge);
-#endif
-#endif /*CONFIG_NETFILTER*/
+ __nf_copy(n, skb);
#ifdef CONFIG_NET_SCHED
C(tc_index);
#ifdef CONFIG_NET_CLS_ACT
static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
{
+#ifndef NET_SKBUFF_DATA_USES_OFFSET
/*
* Shift between the two data areas in bytes
*/
unsigned long offset = new->data - old->data;
-
+#endif
new->sk = NULL;
new->dev = old->dev;
new->priority = old->priority;
#ifdef CONFIG_INET
new->sp = secpath_get(old->sp);
#endif
- new->h.raw = old->h.raw + offset;
- new->nh.raw = old->nh.raw + offset;
- new->mac.raw = old->mac.raw + offset;
+ new->transport_header = old->transport_header;
+ new->network_header = old->network_header;
+ new->mac_header = old->mac_header;
+#ifndef NET_SKBUFF_DATA_USES_OFFSET
+ /* {transport,network,mac}_header are relative to skb->head */
+ new->transport_header += offset;
+ new->network_header += offset;
+ new->mac_header += offset;
+#endif
memcpy(new->cb, old->cb, sizeof(old->cb));
new->local_df = old->local_df;
new->fclone = SKB_FCLONE_UNAVAILABLE;
new->tstamp = old->tstamp;
new->destructor = NULL;
new->mark = old->mark;
-#ifdef CONFIG_NETFILTER
- new->nfct = old->nfct;
- nf_conntrack_get(old->nfct);
- new->nfctinfo = old->nfctinfo;
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
- new->nfct_reasm = old->nfct_reasm;
- nf_conntrack_get_reasm(old->nfct_reasm);
-#endif
+ __nf_copy(new, old);
#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
new->ipvs_property = old->ipvs_property;
#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
- new->nf_bridge = old->nf_bridge;
- nf_bridge_get(old->nf_bridge);
-#endif
-#endif
#ifdef CONFIG_NET_SCHED
#ifdef CONFIG_NET_CLS_ACT
new->tc_verd = old->tc_verd;
/*
* Allocate the copy buffer
*/
- struct sk_buff *n = alloc_skb(skb->end - skb->head + skb->data_len,
- gfp_mask);
+ struct sk_buff *n;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+ n = alloc_skb(skb->end + skb->data_len, gfp_mask);
+#else
+ n = alloc_skb(skb->end - skb->head + skb->data_len, gfp_mask);
+#endif
if (!n)
return NULL;
/*
* Allocate the copy buffer
*/
- struct sk_buff *n = alloc_skb(skb->end - skb->head, gfp_mask);
-
+ struct sk_buff *n;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+ n = alloc_skb(skb->end, gfp_mask);
+#else
+ n = alloc_skb(skb->end - skb->head, gfp_mask);
+#endif
if (!n)
goto out;
/* Set the tail pointer and length */
skb_put(n, skb_headlen(skb));
/* Copy the bytes */
- memcpy(n->data, skb->data, n->len);
+ skb_copy_from_linear_data(skb, n->data, n->len);
n->csum = skb->csum;
n->ip_summed = skb->ip_summed;
{
int i;
u8 *data;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+ int size = nhead + skb->end + ntail;
+#else
int size = nhead + (skb->end - skb->head) + ntail;
+#endif
long off;
if (skb_shared(skb))
/* Copy only real data... and, alas, header. This should be
* optimized for the cases when header is void. */
- memcpy(data + nhead, skb->head, skb->tail - skb->head);
- memcpy(data + size, skb->end, sizeof(struct skb_shared_info));
+ memcpy(data + nhead, skb->head,
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+ skb->tail);
+#else
+ skb->tail - skb->head);
+#endif
+ memcpy(data + size, skb_end_pointer(skb),
+ sizeof(struct skb_shared_info));
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
get_page(skb_shinfo(skb)->frags[i].page);
off = (data + nhead) - skb->head;
skb->head = data;
- skb->end = data + size;
skb->data += off;
- skb->tail += off;
- skb->mac.raw += off;
- skb->h.raw += off;
- skb->nh.raw += off;
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+ skb->end = size;
+ off = nhead;
+#else
+ skb->end = skb->head + size;
+#endif
+ /* {transport,network,mac}_header and tail are relative to skb->head */
+ skb->tail += off;
+ skb->transport_header += off;
+ skb->network_header += off;
+ skb->mac_header += off;
skb->cloned = 0;
skb->nohdr = 0;
atomic_set(&skb_shinfo(skb)->dataref, 1);
*/
struct sk_buff *n = alloc_skb(newheadroom + skb->len + newtailroom,
gfp_mask);
+ int oldheadroom = skb_headroom(skb);
int head_copy_len, head_copy_off;
+ int off = 0;
if (!n)
return NULL;
/* Set the tail pointer and length */
skb_put(n, skb->len);
- head_copy_len = skb_headroom(skb);
+ head_copy_len = oldheadroom;
head_copy_off = 0;
if (newheadroom <= head_copy_len)
head_copy_len = newheadroom;
copy_skb_header(n, skb);
+#ifdef NET_SKBUFF_DATA_USES_OFFSET
+ off = newheadroom - oldheadroom;
+#endif
+ n->transport_header += off;
+ n->network_header += off;
+ n->mac_header += off;
+
return n;
}
} else {
skb->len = len;
skb->data_len = 0;
- skb->tail = skb->data + len;
+ skb_set_tail_pointer(skb, len);
}
return 0;
return NULL;
}
- if (skb_copy_bits(skb, skb_headlen(skb), skb->tail, delta))
+ if (skb_copy_bits(skb, skb_headlen(skb), skb_tail_pointer(skb), delta))
BUG();
/* Optimization: no fragments, no reasons to preestimate
skb->tail += delta;
skb->data_len -= delta;
- return skb->tail;
+ return skb_tail_pointer(skb);
}
/* Copy some data bits from skb to kernel buffer. */
int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
{
int i, copy;
- int start = skb_headlen(skb);
+ int end = skb_headlen(skb);
if (offset > (int)skb->len - len)
goto fault;
/* Copy header. */
- if ((copy = start - offset) > 0) {
+ if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- memcpy(to, skb->data + offset, copy);
+ skb_copy_from_linear_data_offset(skb, offset, to, copy);
if ((len -= copy) == 0)
return 0;
offset += copy;
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
u8 *vaddr;
vaddr = kmap_skb_frag(&skb_shinfo(skb)->frags[i]);
memcpy(to,
- vaddr + skb_shinfo(skb)->frags[i].page_offset+
- offset - start, copy);
+ vaddr + skb_shinfo(skb)->frags[i].page_offset,
+ copy);
kunmap_skb_frag(vaddr);
if ((len -= copy) == 0)
offset += copy;
to += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- if (skb_copy_bits(list, offset - start,
- to, copy))
+ if (skb_copy_bits(list, 0, to, copy))
goto fault;
if ((len -= copy) == 0)
return 0;
offset += copy;
to += copy;
}
- start = end;
}
}
if (!len)
* traversing fragment lists and such.
*/
-int skb_store_bits(const struct sk_buff *skb, int offset, void *from, int len)
+int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
{
int i, copy;
- int start = skb_headlen(skb);
+ int end = skb_headlen(skb);
if (offset > (int)skb->len - len)
goto fault;
- if ((copy = start - offset) > 0) {
+ if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- memcpy(skb->data + offset, from, copy);
+ skb_copy_to_linear_data_offset(skb, offset, from, copy);
if ((len -= copy) == 0)
return 0;
offset += copy;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + frag->size;
+ end = offset + frag->size;
if ((copy = end - offset) > 0) {
u8 *vaddr;
copy = len;
vaddr = kmap_skb_frag(frag);
- memcpy(vaddr + frag->page_offset + offset - start,
- from, copy);
+ memcpy(vaddr + frag->page_offset, from, copy);
kunmap_skb_frag(vaddr);
if ((len -= copy) == 0)
offset += copy;
from += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- if (skb_store_bits(list, offset - start,
- from, copy))
+ if (skb_store_bits(list, 0, from, copy))
goto fault;
if ((len -= copy) == 0)
return 0;
offset += copy;
from += copy;
}
- start = end;
}
}
if (!len)
__wsum skb_checksum(const struct sk_buff *skb, int offset,
int len, __wsum csum)
{
- int start = skb_headlen(skb);
- int i, copy = start - offset;
+ int end = skb_headlen(skb);
+ int i, copy = end - offset;
int pos = 0;
/* Checksum header. */
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
__wsum csum2;
u8 *vaddr;
if (copy > len)
copy = len;
vaddr = kmap_skb_frag(frag);
- csum2 = csum_partial(vaddr + frag->page_offset +
- offset - start, copy, 0);
+ csum2 = csum_partial(vaddr + frag->page_offset,
+ copy, 0);
kunmap_skb_frag(vaddr);
csum = csum_block_add(csum, csum2, pos);
if (!(len -= copy))
offset += copy;
pos += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
__wsum csum2;
if (copy > len)
copy = len;
- csum2 = skb_checksum(list, offset - start,
- copy, 0);
+ csum2 = skb_checksum(list, 0, copy, 0);
csum = csum_block_add(csum, csum2, pos);
if ((len -= copy) == 0)
return csum;
offset += copy;
pos += copy;
}
- start = end;
}
}
BUG_ON(len);
__wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
u8 *to, int len, __wsum csum)
{
- int start = skb_headlen(skb);
- int i, copy = start - offset;
+ int end = skb_headlen(skb);
+ int i, copy = end - offset;
int pos = 0;
/* Copy header. */
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
__wsum csum2;
u8 *vaddr;
copy = len;
vaddr = kmap_skb_frag(frag);
csum2 = csum_partial_copy_nocheck(vaddr +
- frag->page_offset +
- offset - start, to,
- copy, 0);
+ frag->page_offset,
+ to, copy, 0);
kunmap_skb_frag(vaddr);
csum = csum_block_add(csum, csum2, pos);
if (!(len -= copy))
to += copy;
pos += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
for (; list; list = list->next) {
__wsum csum2;
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- csum2 = skb_copy_and_csum_bits(list,
- offset - start,
+ csum2 = skb_copy_and_csum_bits(list, 0,
to, copy, 0);
csum = csum_block_add(csum, csum2, pos);
if ((len -= copy) == 0)
to += copy;
pos += copy;
}
- start = end;
}
}
BUG_ON(len);
long csstart;
if (skb->ip_summed == CHECKSUM_PARTIAL)
- csstart = skb->h.raw - skb->data;
+ csstart = skb->csum_start - skb_headroom(skb);
else
csstart = skb_headlen(skb);
BUG_ON(csstart > skb_headlen(skb));
- memcpy(to, skb->data, csstart);
+ skb_copy_from_linear_data(skb, to, csstart);
csum = 0;
if (csstart != skb->len)
spin_unlock_irqrestore(&list->lock, flags);
}
-#if 0
-/*
- * Tune the memory allocator for a new MTU size.
- */
-void skb_add_mtu(int mtu)
-{
- /* Must match allocation in alloc_skb */
- mtu = SKB_DATA_ALIGN(mtu) + sizeof(struct skb_shared_info);
-
- kmem_add_cache_size(mtu);
-}
-#endif
-
static inline void skb_split_inside_header(struct sk_buff *skb,
struct sk_buff* skb1,
const u32 len, const int pos)
{
int i;
- memcpy(skb_put(skb1, pos - len), skb->data + len, pos - len);
-
+ skb_copy_from_linear_data_offset(skb, len, skb_put(skb1, pos - len),
+ pos - len);
/* And move data appendix as is. */
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
skb_shinfo(skb1)->frags[i] = skb_shinfo(skb)->frags[i];
skb1->len += skb1->data_len;
skb->data_len = 0;
skb->len = len;
- skb->tail = skb->data + len;
+ skb_set_tail_pointer(skb, len);
}
static inline void skb_split_no_header(struct sk_buff *skb,
struct sk_buff *segs = NULL;
struct sk_buff *tail = NULL;
unsigned int mss = skb_shinfo(skb)->gso_size;
- unsigned int doffset = skb->data - skb->mac.raw;
+ unsigned int doffset = skb->data - skb_mac_header(skb);
unsigned int offset = doffset;
unsigned int headroom;
unsigned int len;
nskb->mac_len = skb->mac_len;
skb_reserve(nskb, headroom);
- nskb->mac.raw = nskb->data;
- nskb->nh.raw = nskb->data + skb->mac_len;
- nskb->h.raw = nskb->nh.raw + (skb->h.raw - skb->nh.raw);
- memcpy(skb_put(nskb, doffset), skb->data, doffset);
-
+ skb_reset_mac_header(nskb);
+ skb_set_network_header(nskb, skb->mac_len);
+ nskb->transport_header = (nskb->network_header +
+ skb_network_header_len(skb));
+ skb_copy_from_linear_data(skb, skb_put(nskb, doffset),
+ doffset);
if (!sg) {
nskb->csum = skb_copy_and_csum_bits(skb, offset,
skb_put(nskb, len),
nskb->ip_summed = CHECKSUM_PARTIAL;
nskb->csum = skb->csum;
- memcpy(skb_put(nskb, hsize), skb->data + offset, hsize);
+ skb_copy_from_linear_data_offset(skb, offset,
+ skb_put(nskb, hsize), hsize);
while (pos < offset + len) {
BUG_ON(i >= nfrags);
NULL, NULL);
}
+/**
+ * skb_to_sgvec - Fill a scatter-gather list from a socket buffer
+ * @skb: Socket buffer containing the buffers to be mapped
+ * @sg: The scatter-gather list to map into
+ * @offset: The offset into the buffer's contents to start mapping
+ * @len: Length of buffer space to be mapped
+ *
+ * Fill the specified scatter-gather list with mappings/pointers into a
+ * region of the buffer space attached to a socket buffer.
+ */
+int
+skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
+{
+ int end = skb_headlen(skb);
+ int i, copy = end - offset;
+ int elt = 0;
+
+ if (copy > 0) {
+ if (copy > len)
+ copy = len;
+ sg[elt].page = virt_to_page(skb->data + offset);
+ sg[elt].offset = (unsigned long)(skb->data + offset) % PAGE_SIZE;
+ sg[elt].length = copy;
+ elt++;
+ if ((len -= copy) == 0)
+ return elt;
+ offset += copy;
+ }
+
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ BUG_TRAP(len >= 0);
+
+ end = offset + skb_shinfo(skb)->frags[i].size;
+ if ((copy = end - offset) > 0) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+ if (copy > len)
+ copy = len;
+ sg[elt].page = frag->page;
+ sg[elt].offset = frag->page_offset;
+ sg[elt].length = copy;
+ elt++;
+ if (!(len -= copy))
+ return elt;
+ offset += copy;
+ }
+ }
+
+ if (skb_shinfo(skb)->frag_list) {
+ struct sk_buff *list = skb_shinfo(skb)->frag_list;
+
+ for (; list; list = list->next) {
+ BUG_TRAP(len >= 0);
+
+ end = offset + list->len;
+ if ((copy = end - offset) > 0) {
+ if (copy > len)
+ copy = len;
+ elt += skb_to_sgvec(list, sg+elt, 0, copy);
+ if ((len -= copy) == 0)
+ return elt;
+ offset += copy;
+ }
+ }
+ }
+ BUG_ON(len);
+ return elt;
+}
+
+/**
+ * skb_cow_data - Check that a socket buffer's data buffers are writable
+ * @skb: The socket buffer to check.
+ * @tailbits: Amount of trailing space to be added
+ * @trailer: Returned pointer to the skb where the @tailbits space begins
+ *
+ * Make sure that the data buffers attached to a socket buffer are
+ * writable. If they are not, private copies are made of the data buffers
+ * and the socket buffer is set to use these instead.
+ *
+ * If @tailbits is given, make sure that there is space to write @tailbits
+ * bytes of data beyond current end of socket buffer. @trailer will be
+ * set to point to the skb in which this space begins.
+ *
+ * The number of scatterlist elements required to completely map the
+ * COW'd and extended socket buffer will be returned.
+ */
+int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
+{
+ int copyflag;
+ int elt;
+ struct sk_buff *skb1, **skb_p;
+
+ /* If skb is cloned or its head is paged, reallocate
+ * head pulling out all the pages (pages are considered not writable
+ * at the moment even if they are anonymous).
+ */
+ if ((skb_cloned(skb) || skb_shinfo(skb)->nr_frags) &&
+ __pskb_pull_tail(skb, skb_pagelen(skb)-skb_headlen(skb)) == NULL)
+ return -ENOMEM;
+
+ /* Easy case. Most of packets will go this way. */
+ if (!skb_shinfo(skb)->frag_list) {
+ /* A little of trouble, not enough of space for trailer.
+ * This should not happen, when stack is tuned to generate
+ * good frames. OK, on miss we reallocate and reserve even more
+ * space, 128 bytes is fair. */
+
+ if (skb_tailroom(skb) < tailbits &&
+ pskb_expand_head(skb, 0, tailbits-skb_tailroom(skb)+128, GFP_ATOMIC))
+ return -ENOMEM;
+
+ /* Voila! */
+ *trailer = skb;
+ return 1;
+ }
+
+ /* Misery. We are in troubles, going to mincer fragments... */
+
+ elt = 1;
+ skb_p = &skb_shinfo(skb)->frag_list;
+ copyflag = 0;
+
+ while ((skb1 = *skb_p) != NULL) {
+ int ntail = 0;
+
+ /* The fragment is partially pulled by someone,
+ * this can happen on input. Copy it and everything
+ * after it. */
+
+ if (skb_shared(skb1))
+ copyflag = 1;
+
+ /* If the skb is the last, worry about trailer. */
+
+ if (skb1->next == NULL && tailbits) {
+ if (skb_shinfo(skb1)->nr_frags ||
+ skb_shinfo(skb1)->frag_list ||
+ skb_tailroom(skb1) < tailbits)
+ ntail = tailbits + 128;
+ }
+
+ if (copyflag ||
+ skb_cloned(skb1) ||
+ ntail ||
+ skb_shinfo(skb1)->nr_frags ||
+ skb_shinfo(skb1)->frag_list) {
+ struct sk_buff *skb2;
+
+ /* Fuck, we are miserable poor guys... */
+ if (ntail == 0)
+ skb2 = skb_copy(skb1, GFP_ATOMIC);
+ else
+ skb2 = skb_copy_expand(skb1,
+ skb_headroom(skb1),
+ ntail,
+ GFP_ATOMIC);
+ if (unlikely(skb2 == NULL))
+ return -ENOMEM;
+
+ if (skb1->sk)
+ skb_set_owner_w(skb2, skb1->sk);
+
+ /* Looking around. Are we still alive?
+ * OK, link new skb, drop old one */
+
+ skb2->next = skb1->next;
+ *skb_p = skb2;
+ kfree_skb(skb1);
+ skb1 = skb2;
+ }
+ elt++;
+ *trailer = skb1;
+ skb_p = &skb1->next;
+ }
+
+ return elt;
+}
+
EXPORT_SYMBOL(___pskb_trim);
EXPORT_SYMBOL(__kfree_skb);
EXPORT_SYMBOL(kfree_skb);
EXPORT_SYMBOL(skb_abort_seq_read);
EXPORT_SYMBOL(skb_find_text);
EXPORT_SYMBOL(skb_append_datato_frags);
+
+EXPORT_SYMBOL_GPL(skb_to_sgvec);
+EXPORT_SYMBOL_GPL(skb_cow_data);
"sk_lock-21" , "sk_lock-AF_SNA" , "sk_lock-AF_IRDA" ,
"sk_lock-AF_PPPOX" , "sk_lock-AF_WANPIPE" , "sk_lock-AF_LLC" ,
"sk_lock-27" , "sk_lock-28" , "sk_lock-29" ,
- "sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-AF_MAX"
+ "sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV" ,
+ "sk_lock-AF_RXRPC" , "sk_lock-AF_MAX"
};
static const char *af_family_slock_key_strings[AF_MAX+1] = {
"slock-AF_UNSPEC", "slock-AF_UNIX" , "slock-AF_INET" ,
"slock-21" , "slock-AF_SNA" , "slock-AF_IRDA" ,
"slock-AF_PPPOX" , "slock-AF_WANPIPE" , "slock-AF_LLC" ,
"slock-27" , "slock-28" , "slock-29" ,
- "slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_MAX"
+ "slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" ,
+ "slock-AF_RXRPC" , "slock-AF_MAX"
};
#endif
}
#endif
- if(optlen<sizeof(int))
- return(-EINVAL);
+ if (optlen < sizeof(int))
+ return -EINVAL;
if (get_user(val, (int __user *)optval))
return -EFAULT;
lock_sock(sk);
- switch(optname)
- {
- case SO_DEBUG:
- if(val && !capable(CAP_NET_ADMIN))
- {
- ret = -EACCES;
- }
- else if (valbool)
- sock_set_flag(sk, SOCK_DBG);
- else
- sock_reset_flag(sk, SOCK_DBG);
- break;
- case SO_REUSEADDR:
- sk->sk_reuse = valbool;
- break;
- case SO_TYPE:
- case SO_ERROR:
- ret = -ENOPROTOOPT;
- break;
- case SO_DONTROUTE:
- if (valbool)
- sock_set_flag(sk, SOCK_LOCALROUTE);
- else
- sock_reset_flag(sk, SOCK_LOCALROUTE);
- break;
- case SO_BROADCAST:
- sock_valbool_flag(sk, SOCK_BROADCAST, valbool);
- break;
- case SO_SNDBUF:
- /* Don't error on this BSD doesn't and if you think
- about it this is right. Otherwise apps have to
- play 'guess the biggest size' games. RCVBUF/SNDBUF
- are treated in BSD as hints */
-
- if (val > sysctl_wmem_max)
- val = sysctl_wmem_max;
+ switch(optname) {
+ case SO_DEBUG:
+ if (val && !capable(CAP_NET_ADMIN)) {
+ ret = -EACCES;
+ }
+ else if (valbool)
+ sock_set_flag(sk, SOCK_DBG);
+ else
+ sock_reset_flag(sk, SOCK_DBG);
+ break;
+ case SO_REUSEADDR:
+ sk->sk_reuse = valbool;
+ break;
+ case SO_TYPE:
+ case SO_ERROR:
+ ret = -ENOPROTOOPT;
+ break;
+ case SO_DONTROUTE:
+ if (valbool)
+ sock_set_flag(sk, SOCK_LOCALROUTE);
+ else
+ sock_reset_flag(sk, SOCK_LOCALROUTE);
+ break;
+ case SO_BROADCAST:
+ sock_valbool_flag(sk, SOCK_BROADCAST, valbool);
+ break;
+ case SO_SNDBUF:
+ /* Don't error on this BSD doesn't and if you think
+ about it this is right. Otherwise apps have to
+ play 'guess the biggest size' games. RCVBUF/SNDBUF
+ are treated in BSD as hints */
+
+ if (val > sysctl_wmem_max)
+ val = sysctl_wmem_max;
set_sndbuf:
- sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
- if ((val * 2) < SOCK_MIN_SNDBUF)
- sk->sk_sndbuf = SOCK_MIN_SNDBUF;
- else
- sk->sk_sndbuf = val * 2;
+ sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
+ if ((val * 2) < SOCK_MIN_SNDBUF)
+ sk->sk_sndbuf = SOCK_MIN_SNDBUF;
+ else
+ sk->sk_sndbuf = val * 2;
- /*
- * Wake up sending tasks if we
- * upped the value.
- */
- sk->sk_write_space(sk);
- break;
+ /*
+ * Wake up sending tasks if we
+ * upped the value.
+ */
+ sk->sk_write_space(sk);
+ break;
- case SO_SNDBUFFORCE:
- if (!capable(CAP_NET_ADMIN)) {
- ret = -EPERM;
- break;
- }
- goto set_sndbuf;
+ case SO_SNDBUFFORCE:
+ if (!capable(CAP_NET_ADMIN)) {
+ ret = -EPERM;
+ break;
+ }
+ goto set_sndbuf;
- case SO_RCVBUF:
- /* Don't error on this BSD doesn't and if you think
- about it this is right. Otherwise apps have to
- play 'guess the biggest size' games. RCVBUF/SNDBUF
- are treated in BSD as hints */
+ case SO_RCVBUF:
+ /* Don't error on this BSD doesn't and if you think
+ about it this is right. Otherwise apps have to
+ play 'guess the biggest size' games. RCVBUF/SNDBUF
+ are treated in BSD as hints */
- if (val > sysctl_rmem_max)
- val = sysctl_rmem_max;
+ if (val > sysctl_rmem_max)
+ val = sysctl_rmem_max;
set_rcvbuf:
- sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
- /*
- * We double it on the way in to account for
- * "struct sk_buff" etc. overhead. Applications
- * assume that the SO_RCVBUF setting they make will
- * allow that much actual data to be received on that
- * socket.
- *
- * Applications are unaware that "struct sk_buff" and
- * other overheads allocate from the receive buffer
- * during socket buffer allocation.
- *
- * And after considering the possible alternatives,
- * returning the value we actually used in getsockopt
- * is the most desirable behavior.
- */
- if ((val * 2) < SOCK_MIN_RCVBUF)
- sk->sk_rcvbuf = SOCK_MIN_RCVBUF;
- else
- sk->sk_rcvbuf = val * 2;
+ sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
+ /*
+ * We double it on the way in to account for
+ * "struct sk_buff" etc. overhead. Applications
+ * assume that the SO_RCVBUF setting they make will
+ * allow that much actual data to be received on that
+ * socket.
+ *
+ * Applications are unaware that "struct sk_buff" and
+ * other overheads allocate from the receive buffer
+ * during socket buffer allocation.
+ *
+ * And after considering the possible alternatives,
+ * returning the value we actually used in getsockopt
+ * is the most desirable behavior.
+ */
+ if ((val * 2) < SOCK_MIN_RCVBUF)
+ sk->sk_rcvbuf = SOCK_MIN_RCVBUF;
+ else
+ sk->sk_rcvbuf = val * 2;
+ break;
+
+ case SO_RCVBUFFORCE:
+ if (!capable(CAP_NET_ADMIN)) {
+ ret = -EPERM;
break;
+ }
+ goto set_rcvbuf;
- case SO_RCVBUFFORCE:
- if (!capable(CAP_NET_ADMIN)) {
- ret = -EPERM;
- break;
- }
- goto set_rcvbuf;
-
- case SO_KEEPALIVE:
+ case SO_KEEPALIVE:
#ifdef CONFIG_INET
- if (sk->sk_protocol == IPPROTO_TCP)
- tcp_set_keepalive(sk, valbool);
+ if (sk->sk_protocol == IPPROTO_TCP)
+ tcp_set_keepalive(sk, valbool);
#endif
- sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool);
- break;
-
- case SO_OOBINLINE:
- sock_valbool_flag(sk, SOCK_URGINLINE, valbool);
+ sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool);
+ break;
+
+ case SO_OOBINLINE:
+ sock_valbool_flag(sk, SOCK_URGINLINE, valbool);
+ break;
+
+ case SO_NO_CHECK:
+ sk->sk_no_check = valbool;
+ break;
+
+ case SO_PRIORITY:
+ if ((val >= 0 && val <= 6) || capable(CAP_NET_ADMIN))
+ sk->sk_priority = val;
+ else
+ ret = -EPERM;
+ break;
+
+ case SO_LINGER:
+ if (optlen < sizeof(ling)) {
+ ret = -EINVAL; /* 1003.1g */
break;
-
- case SO_NO_CHECK:
- sk->sk_no_check = valbool;
- break;
-
- case SO_PRIORITY:
- if ((val >= 0 && val <= 6) || capable(CAP_NET_ADMIN))
- sk->sk_priority = val;
- else
- ret = -EPERM;
+ }
+ if (copy_from_user(&ling,optval,sizeof(ling))) {
+ ret = -EFAULT;
break;
-
- case SO_LINGER:
- if(optlen<sizeof(ling)) {
- ret = -EINVAL; /* 1003.1g */
- break;
- }
- if (copy_from_user(&ling,optval,sizeof(ling))) {
- ret = -EFAULT;
- break;
- }
- if (!ling.l_onoff)
- sock_reset_flag(sk, SOCK_LINGER);
- else {
+ }
+ if (!ling.l_onoff)
+ sock_reset_flag(sk, SOCK_LINGER);
+ else {
#if (BITS_PER_LONG == 32)
- if ((unsigned int)ling.l_linger >= MAX_SCHEDULE_TIMEOUT/HZ)
- sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT;
- else
+ if ((unsigned int)ling.l_linger >= MAX_SCHEDULE_TIMEOUT/HZ)
+ sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT;
+ else
#endif
- sk->sk_lingertime = (unsigned int)ling.l_linger * HZ;
- sock_set_flag(sk, SOCK_LINGER);
- }
- break;
-
- case SO_BSDCOMPAT:
- sock_warn_obsolete_bsdism("setsockopt");
- break;
-
- case SO_PASSCRED:
- if (valbool)
- set_bit(SOCK_PASSCRED, &sock->flags);
+ sk->sk_lingertime = (unsigned int)ling.l_linger * HZ;
+ sock_set_flag(sk, SOCK_LINGER);
+ }
+ break;
+
+ case SO_BSDCOMPAT:
+ sock_warn_obsolete_bsdism("setsockopt");
+ break;
+
+ case SO_PASSCRED:
+ if (valbool)
+ set_bit(SOCK_PASSCRED, &sock->flags);
+ else
+ clear_bit(SOCK_PASSCRED, &sock->flags);
+ break;
+
+ case SO_TIMESTAMP:
+ case SO_TIMESTAMPNS:
+ if (valbool) {
+ if (optname == SO_TIMESTAMP)
+ sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
else
- clear_bit(SOCK_PASSCRED, &sock->flags);
- break;
+ sock_set_flag(sk, SOCK_RCVTSTAMPNS);
+ sock_set_flag(sk, SOCK_RCVTSTAMP);
+ sock_enable_timestamp(sk);
+ } else {
+ sock_reset_flag(sk, SOCK_RCVTSTAMP);
+ sock_reset_flag(sk, SOCK_RCVTSTAMPNS);
+ }
+ break;
- case SO_TIMESTAMP:
- if (valbool) {
- sock_set_flag(sk, SOCK_RCVTSTAMP);
- sock_enable_timestamp(sk);
- } else
- sock_reset_flag(sk, SOCK_RCVTSTAMP);
- break;
+ case SO_RCVLOWAT:
+ if (val < 0)
+ val = INT_MAX;
+ sk->sk_rcvlowat = val ? : 1;
+ break;
- case SO_RCVLOWAT:
- if (val < 0)
- val = INT_MAX;
- sk->sk_rcvlowat = val ? : 1;
- break;
+ case SO_RCVTIMEO:
+ ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
+ break;
- case SO_RCVTIMEO:
- ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen);
- break;
+ case SO_SNDTIMEO:
+ ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
+ break;
- case SO_SNDTIMEO:
- ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
+#ifdef CONFIG_NETDEVICES
+ case SO_BINDTODEVICE:
+ {
+ char devname[IFNAMSIZ];
+
+ /* Sorry... */
+ if (!capable(CAP_NET_RAW)) {
+ ret = -EPERM;
break;
+ }
-#ifdef CONFIG_NETDEVICES
- case SO_BINDTODEVICE:
- {
- char devname[IFNAMSIZ];
+ /* Bind this socket to a particular device like "eth0",
+ * as specified in the passed interface name. If the
+ * name is "" or the option length is zero the socket
+ * is not bound.
+ */
- /* Sorry... */
- if (!capable(CAP_NET_RAW)) {
- ret = -EPERM;
+ if (!valbool) {
+ sk->sk_bound_dev_if = 0;
+ } else {
+ if (optlen > IFNAMSIZ - 1)
+ optlen = IFNAMSIZ - 1;
+ memset(devname, 0, sizeof(devname));
+ if (copy_from_user(devname, optval, optlen)) {
+ ret = -EFAULT;
break;
}
- /* Bind this socket to a particular device like "eth0",
- * as specified in the passed interface name. If the
- * name is "" or the option length is zero the socket
- * is not bound.
- */
+ /* Remove any cached route for this socket. */
+ sk_dst_reset(sk);
- if (!valbool) {
+ if (devname[0] == '\0') {
sk->sk_bound_dev_if = 0;
} else {
- if (optlen > IFNAMSIZ - 1)
- optlen = IFNAMSIZ - 1;
- memset(devname, 0, sizeof(devname));
- if (copy_from_user(devname, optval, optlen)) {
- ret = -EFAULT;
+ struct net_device *dev = dev_get_by_name(devname);
+ if (!dev) {
+ ret = -ENODEV;
break;
}
-
- /* Remove any cached route for this socket. */
- sk_dst_reset(sk);
-
- if (devname[0] == '\0') {
- sk->sk_bound_dev_if = 0;
- } else {
- struct net_device *dev = dev_get_by_name(devname);
- if (!dev) {
- ret = -ENODEV;
- break;
- }
- sk->sk_bound_dev_if = dev->ifindex;
- dev_put(dev);
- }
+ sk->sk_bound_dev_if = dev->ifindex;
+ dev_put(dev);
}
- break;
}
+ break;
+ }
#endif
- case SO_ATTACH_FILTER:
- ret = -EINVAL;
- if (optlen == sizeof(struct sock_fprog)) {
- struct sock_fprog fprog;
+ case SO_ATTACH_FILTER:
+ ret = -EINVAL;
+ if (optlen == sizeof(struct sock_fprog)) {
+ struct sock_fprog fprog;
- ret = -EFAULT;
- if (copy_from_user(&fprog, optval, sizeof(fprog)))
- break;
-
- ret = sk_attach_filter(&fprog, sk);
- }
- break;
-
- case SO_DETACH_FILTER:
- rcu_read_lock_bh();
- filter = rcu_dereference(sk->sk_filter);
- if (filter) {
- rcu_assign_pointer(sk->sk_filter, NULL);
- sk_filter_release(sk, filter);
- rcu_read_unlock_bh();
+ ret = -EFAULT;
+ if (copy_from_user(&fprog, optval, sizeof(fprog)))
break;
- }
+
+ ret = sk_attach_filter(&fprog, sk);
+ }
+ break;
+
+ case SO_DETACH_FILTER:
+ rcu_read_lock_bh();
+ filter = rcu_dereference(sk->sk_filter);
+ if (filter) {
+ rcu_assign_pointer(sk->sk_filter, NULL);
+ sk_filter_release(sk, filter);
rcu_read_unlock_bh();
- ret = -ENONET;
break;
+ }
+ rcu_read_unlock_bh();
+ ret = -ENONET;
+ break;
- case SO_PASSSEC:
- if (valbool)
- set_bit(SOCK_PASSSEC, &sock->flags);
- else
- clear_bit(SOCK_PASSSEC, &sock->flags);
- break;
+ case SO_PASSSEC:
+ if (valbool)
+ set_bit(SOCK_PASSSEC, &sock->flags);
+ else
+ clear_bit(SOCK_PASSSEC, &sock->flags);
+ break;
/* We implement the SO_SNDLOWAT etc to
not be settable (1003.1g 5.3) */
- default:
- ret = -ENOPROTOOPT;
- break;
+ default:
+ ret = -ENOPROTOOPT;
+ break;
}
release_sock(sk);
return ret;
{
struct sock *sk = sock->sk;
- union
- {
+ union {
int val;
struct linger ling;
struct timeval tm;
unsigned int lv = sizeof(int);
int len;
- if(get_user(len,optlen))
+ if (get_user(len, optlen))
return -EFAULT;
- if(len < 0)
+ if (len < 0)
return -EINVAL;
- switch(optname)
- {
- case SO_DEBUG:
- v.val = sock_flag(sk, SOCK_DBG);
- break;
-
- case SO_DONTROUTE:
- v.val = sock_flag(sk, SOCK_LOCALROUTE);
- break;
-
- case SO_BROADCAST:
- v.val = !!sock_flag(sk, SOCK_BROADCAST);
- break;
-
- case SO_SNDBUF:
- v.val = sk->sk_sndbuf;
- break;
-
- case SO_RCVBUF:
- v.val = sk->sk_rcvbuf;
- break;
-
- case SO_REUSEADDR:
- v.val = sk->sk_reuse;
- break;
-
- case SO_KEEPALIVE:
- v.val = !!sock_flag(sk, SOCK_KEEPOPEN);
- break;
-
- case SO_TYPE:
- v.val = sk->sk_type;
- break;
-
- case SO_ERROR:
- v.val = -sock_error(sk);
- if(v.val==0)
- v.val = xchg(&sk->sk_err_soft, 0);
- break;
-
- case SO_OOBINLINE:
- v.val = !!sock_flag(sk, SOCK_URGINLINE);
- break;
-
- case SO_NO_CHECK:
- v.val = sk->sk_no_check;
- break;
-
- case SO_PRIORITY:
- v.val = sk->sk_priority;
- break;
-
- case SO_LINGER:
- lv = sizeof(v.ling);
- v.ling.l_onoff = !!sock_flag(sk, SOCK_LINGER);
- v.ling.l_linger = sk->sk_lingertime / HZ;
- break;
-
- case SO_BSDCOMPAT:
- sock_warn_obsolete_bsdism("getsockopt");
- break;
-
- case SO_TIMESTAMP:
- v.val = sock_flag(sk, SOCK_RCVTSTAMP);
- break;
+ switch(optname) {
+ case SO_DEBUG:
+ v.val = sock_flag(sk, SOCK_DBG);
+ break;
+
+ case SO_DONTROUTE:
+ v.val = sock_flag(sk, SOCK_LOCALROUTE);
+ break;
+
+ case SO_BROADCAST:
+ v.val = !!sock_flag(sk, SOCK_BROADCAST);
+ break;
+
+ case SO_SNDBUF:
+ v.val = sk->sk_sndbuf;
+ break;
+
+ case SO_RCVBUF:
+ v.val = sk->sk_rcvbuf;
+ break;
+
+ case SO_REUSEADDR:
+ v.val = sk->sk_reuse;
+ break;
+
+ case SO_KEEPALIVE:
+ v.val = !!sock_flag(sk, SOCK_KEEPOPEN);
+ break;
+
+ case SO_TYPE:
+ v.val = sk->sk_type;
+ break;
+
+ case SO_ERROR:
+ v.val = -sock_error(sk);
+ if (v.val==0)
+ v.val = xchg(&sk->sk_err_soft, 0);
+ break;
+
+ case SO_OOBINLINE:
+ v.val = !!sock_flag(sk, SOCK_URGINLINE);
+ break;
+
+ case SO_NO_CHECK:
+ v.val = sk->sk_no_check;
+ break;
+
+ case SO_PRIORITY:
+ v.val = sk->sk_priority;
+ break;
+
+ case SO_LINGER:
+ lv = sizeof(v.ling);
+ v.ling.l_onoff = !!sock_flag(sk, SOCK_LINGER);
+ v.ling.l_linger = sk->sk_lingertime / HZ;
+ break;
+
+ case SO_BSDCOMPAT:
+ sock_warn_obsolete_bsdism("getsockopt");
+ break;
+
+ case SO_TIMESTAMP:
+ v.val = sock_flag(sk, SOCK_RCVTSTAMP) &&
+ !sock_flag(sk, SOCK_RCVTSTAMPNS);
+ break;
+
+ case SO_TIMESTAMPNS:
+ v.val = sock_flag(sk, SOCK_RCVTSTAMPNS);
+ break;
+
+ case SO_RCVTIMEO:
+ lv=sizeof(struct timeval);
+ if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
+ v.tm.tv_sec = 0;
+ v.tm.tv_usec = 0;
+ } else {
+ v.tm.tv_sec = sk->sk_rcvtimeo / HZ;
+ v.tm.tv_usec = ((sk->sk_rcvtimeo % HZ) * 1000000) / HZ;
+ }
+ break;
+
+ case SO_SNDTIMEO:
+ lv=sizeof(struct timeval);
+ if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
+ v.tm.tv_sec = 0;
+ v.tm.tv_usec = 0;
+ } else {
+ v.tm.tv_sec = sk->sk_sndtimeo / HZ;
+ v.tm.tv_usec = ((sk->sk_sndtimeo % HZ) * 1000000) / HZ;
+ }
+ break;
- case SO_RCVTIMEO:
- lv=sizeof(struct timeval);
- if (sk->sk_rcvtimeo == MAX_SCHEDULE_TIMEOUT) {
- v.tm.tv_sec = 0;
- v.tm.tv_usec = 0;
- } else {
- v.tm.tv_sec = sk->sk_rcvtimeo / HZ;
- v.tm.tv_usec = ((sk->sk_rcvtimeo % HZ) * 1000000) / HZ;
- }
- break;
+ case SO_RCVLOWAT:
+ v.val = sk->sk_rcvlowat;
+ break;
- case SO_SNDTIMEO:
- lv=sizeof(struct timeval);
- if (sk->sk_sndtimeo == MAX_SCHEDULE_TIMEOUT) {
- v.tm.tv_sec = 0;
- v.tm.tv_usec = 0;
- } else {
- v.tm.tv_sec = sk->sk_sndtimeo / HZ;
- v.tm.tv_usec = ((sk->sk_sndtimeo % HZ) * 1000000) / HZ;
- }
- break;
+ case SO_SNDLOWAT:
+ v.val=1;
+ break;
- case SO_RCVLOWAT:
- v.val = sk->sk_rcvlowat;
- break;
+ case SO_PASSCRED:
+ v.val = test_bit(SOCK_PASSCRED, &sock->flags) ? 1 : 0;
+ break;
- case SO_SNDLOWAT:
- v.val=1;
- break;
+ case SO_PEERCRED:
+ if (len > sizeof(sk->sk_peercred))
+ len = sizeof(sk->sk_peercred);
+ if (copy_to_user(optval, &sk->sk_peercred, len))
+ return -EFAULT;
+ goto lenout;
- case SO_PASSCRED:
- v.val = test_bit(SOCK_PASSCRED, &sock->flags) ? 1 : 0;
- break;
-
- case SO_PEERCRED:
- if (len > sizeof(sk->sk_peercred))
- len = sizeof(sk->sk_peercred);
- if (copy_to_user(optval, &sk->sk_peercred, len))
- return -EFAULT;
- goto lenout;
-
- case SO_PEERNAME:
- {
- char address[128];
-
- if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
- return -ENOTCONN;
- if (lv < len)
- return -EINVAL;
- if (copy_to_user(optval, address, len))
- return -EFAULT;
- goto lenout;
- }
+ case SO_PEERNAME:
+ {
+ char address[128];
+
+ if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
+ return -ENOTCONN;
+ if (lv < len)
+ return -EINVAL;
+ if (copy_to_user(optval, address, len))
+ return -EFAULT;
+ goto lenout;
+ }
- /* Dubious BSD thing... Probably nobody even uses it, but
- * the UNIX standard wants it for whatever reason... -DaveM
- */
- case SO_ACCEPTCONN:
- v.val = sk->sk_state == TCP_LISTEN;
- break;
+ /* Dubious BSD thing... Probably nobody even uses it, but
+ * the UNIX standard wants it for whatever reason... -DaveM
+ */
+ case SO_ACCEPTCONN:
+ v.val = sk->sk_state == TCP_LISTEN;
+ break;
- case SO_PASSSEC:
- v.val = test_bit(SOCK_PASSSEC, &sock->flags) ? 1 : 0;
- break;
+ case SO_PASSSEC:
+ v.val = test_bit(SOCK_PASSSEC, &sock->flags) ? 1 : 0;
+ break;
- case SO_PEERSEC:
- return security_socket_getpeersec_stream(sock, optval, optlen, len);
+ case SO_PEERSEC:
+ return security_socket_getpeersec_stream(sock, optval, optlen, len);
- default:
- return(-ENOPROTOOPT);
+ default:
+ return -ENOPROTOOPT;
}
+
if (len > lv)
len = lv;
if (copy_to_user(optval, &v, len))
sk_node_init(&newsk->sk_node);
sock_lock_init(newsk);
bh_lock_sock(newsk);
+ newsk->sk_backlog.head = newsk->sk_backlog.tail = NULL;
atomic_set(&newsk->sk_rmem_alloc, 0);
atomic_set(&newsk->sk_wmem_alloc, 0);
newsk->sk_wmem_queued = 0;
newsk->sk_forward_alloc = 0;
newsk->sk_send_head = NULL;
- newsk->sk_backlog.head = newsk->sk_backlog.tail = NULL;
newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
sock_reset_flag(newsk, SOCK_DONE);
EXPORT_SYMBOL_GPL(sk_clone);
+void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
+{
+ __sk_dst_set(sk, dst);
+ sk->sk_route_caps = dst->dev->features;
+ if (sk->sk_route_caps & NETIF_F_GSO)
+ sk->sk_route_caps |= NETIF_F_GSO_MASK;
+ if (sk_can_gso(sk)) {
+ if (dst->header_len)
+ sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
+ else
+ sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
+ }
+}
+EXPORT_SYMBOL_GPL(sk_setup_caps);
+
void __init sk_init(void)
{
if (num_physpages <= 4096) {
{
DEFINE_WAIT(wait);
- for(;;) {
+ for (;;) {
prepare_to_wait_exclusive(&sk->sk_lock.wq, &wait,
TASK_UNINTERRUPTIBLE);
spin_unlock_bh(&sk->sk_lock.slock);
schedule();
spin_lock_bh(&sk->sk_lock.slock);
- if(!sock_owned_by_user(sk))
+ if (!sock_owned_by_user(sk))
break;
}
finish_wait(&sk->sk_lock.wq, &wait);
} while (skb != NULL);
bh_lock_sock(sk);
- } while((skb = sk->sk_backlog.head) != NULL);
+ } while ((skb = sk->sk_backlog.head) != NULL);
}
/**
/* Do not wake up a writer until he can make "significant"
* progress. --DaveM
*/
- if((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) {
+ if ((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) {
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
wake_up_interruptible(sk->sk_sleep);
sock_set_flag(sk, SOCK_ZAPPED);
- if(sock)
- {
+ if (sock) {
sk->sk_type = sock->type;
sk->sk_sleep = &sock->wait;
sock->sk = sk;
sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT;
sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT;
- sk->sk_stamp.tv_sec = -1L;
- sk->sk_stamp.tv_usec = -1L;
+ sk->sk_stamp = ktime_set(-1L, -1L);
atomic_set(&sk->sk_refcnt, 1);
}
int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
{
+ struct timeval tv;
if (!sock_flag(sk, SOCK_TIMESTAMP))
sock_enable_timestamp(sk);
- if (sk->sk_stamp.tv_sec == -1)
+ tv = ktime_to_timeval(sk->sk_stamp);
+ if (tv.tv_sec == -1)
return -ENOENT;
- if (sk->sk_stamp.tv_sec == 0)
- do_gettimeofday(&sk->sk_stamp);
- return copy_to_user(userstamp, &sk->sk_stamp, sizeof(struct timeval)) ?
- -EFAULT : 0;
+ if (tv.tv_sec == 0) {
+ sk->sk_stamp = ktime_get_real();
+ tv = ktime_to_timeval(sk->sk_stamp);
+ }
+ return copy_to_user(userstamp, &tv, sizeof(tv)) ? -EFAULT : 0;
}
EXPORT_SYMBOL(sock_get_timestamp);
+int sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp)
+{
+ struct timespec ts;
+ if (!sock_flag(sk, SOCK_TIMESTAMP))
+ sock_enable_timestamp(sk);
+ ts = ktime_to_timespec(sk->sk_stamp);
+ if (ts.tv_sec == -1)
+ return -ENOENT;
+ if (ts.tv_sec == 0) {
+ sk->sk_stamp = ktime_get_real();
+ ts = ktime_to_timespec(sk->sk_stamp);
+ }
+ return copy_to_user(userstamp, &ts, sizeof(ts)) ? -EFAULT : 0;
+}
+EXPORT_SYMBOL(sock_get_timestampns);
+
void sock_enable_timestamp(struct sock *sk)
{
if (!sock_flag(sk, SOCK_TIMESTAMP)) {
return 0;
}
-static struct seq_operations proto_seq_ops = {
+static const struct seq_operations proto_seq_ops = {
.start = proto_seq_start,
.next = proto_seq_next,
.stop = proto_seq_stop,
.mode = 0644,
.proc_handler = &proc_dointvec
},
+ {
+ .ctl_name = NET_CORE_WARNINGS,
+ .procname = "warnings",
+ .data = &net_msg_warn,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
{ .ctl_name = 0 }
};
struct sk_buff *skb, int offset, struct iovec *to,
size_t len, struct dma_pinned_list *pinned_list)
{
- int start = skb_headlen(skb);
- int i, copy = start - offset;
+ int end = skb_headlen(skb);
+ int i, copy = end - offset;
dma_cookie_t cookie = 0;
/* Copy header. */
/* Copy paged appendix. Hmm... why does this look so complicated? */
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
copy = end - offset;
if ((copy = end - offset) > 0) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
if (copy > len)
copy = len;
- cookie = dma_memcpy_pg_to_iovec(chan, to, pinned_list, page,
- frag->page_offset + offset - start, copy);
+ cookie = dma_memcpy_pg_to_iovec(chan, to, pinned_list,
+ page, frag->page_offset, copy);
if (cookie < 0)
goto fault;
len -= copy;
goto end;
offset += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
copy = end - offset;
if (copy > 0) {
if (copy > len)
copy = len;
cookie = dma_skb_copy_datagram_iovec(chan, list,
- offset - start, to, copy,
- pinned_list);
+ 0, to, copy, pinned_list);
if (cookie < 0)
goto fault;
len -= copy;
goto end;
offset += copy;
}
- start = end;
}
}
#include <asm/system.h>
#include <asm/uaccess.h>
-int net_msg_cost = 5*HZ;
-int net_msg_burst = 10;
+int net_msg_cost __read_mostly = 5*HZ;
+int net_msg_burst __read_mostly = 10;
+int net_msg_warn __read_mostly = 1;
+EXPORT_SYMBOL(net_msg_warn);
/*
* All net warning printk()s should be guarded by this function.
if (av != NULL) {
av->dccpav_buf_head = DCCP_MAX_ACKVEC_LEN - 1;
- av->dccpav_buf_ackno = DCCP_MAX_SEQNO + 1;
+ av->dccpav_buf_ackno = UINT48_MAX + 1;
av->dccpav_buf_nonce = av->dccpav_buf_nonce = 0;
av->dccpav_time.tv_sec = 0;
av->dccpav_time.tv_usec = 0;
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-
#include "../ccid.h"
#include "../dccp.h"
#include "lib/packet_history.h"
static struct dccp_rx_hist *ccid3_rx_hist;
static struct dccp_li_hist *ccid3_li_hist;
+/*
+ * Transmitter Half-Connection Routines
+ */
#ifdef CONFIG_IP_DCCP_CCID3_DEBUG
static const char *ccid3_tx_state_name(enum ccid3_hc_tx_states state)
{
}
/*
- * Recalculate scheduled nominal send time t_nom, inter-packet interval
- * t_ipi, and delta value. Should be called after each change to X.
+ * Compute the initial sending rate X_init according to RFC 3390:
+ * w_init = min(4 * MSS, max(2 * MSS, 4380 bytes))
+ * X_init = w_init / RTT
+ * For consistency with other parts of the code, X_init is scaled by 2^6.
*/
-static inline void ccid3_update_send_time(struct ccid3_hc_tx_sock *hctx)
+static inline u64 rfc3390_initial_rate(struct sock *sk)
{
- timeval_sub_usecs(&hctx->ccid3hctx_t_nom, hctx->ccid3hctx_t_ipi);
+ const struct dccp_sock *dp = dccp_sk(sk);
+ const __u32 w_init = min(4 * dp->dccps_mss_cache,
+ max(2 * dp->dccps_mss_cache, 4380U));
- /* Calculate new t_ipi = s / X_inst (X_inst is in 64 * bytes/second) */
- hctx->ccid3hctx_t_ipi = scaled_div(hctx->ccid3hctx_s,
- hctx->ccid3hctx_x >> 6);
+ return scaled_div(w_init << 6, ccid3_hc_tx_sk(sk)->ccid3hctx_rtt);
+}
- /* Update nominal send time with regard to the new t_ipi */
- timeval_add_usecs(&hctx->ccid3hctx_t_nom, hctx->ccid3hctx_t_ipi);
+/*
+ * Recalculate t_ipi and delta (should be called whenever X changes)
+ */
+static inline void ccid3_update_send_interval(struct ccid3_hc_tx_sock *hctx)
+{
+ /* Calculate new t_ipi = s / X_inst (X_inst is in 64 * bytes/second) */
+ hctx->ccid3hctx_t_ipi = scaled_div32(((u64)hctx->ccid3hctx_s) << 6,
+ hctx->ccid3hctx_x);
/* Calculate new delta by delta = min(t_ipi / 2, t_gran / 2) */
hctx->ccid3hctx_delta = min_t(u32, hctx->ccid3hctx_t_ipi / 2,
TFRC_OPSYS_HALF_TIME_GRAN);
+
+ ccid3_pr_debug("t_ipi=%u, delta=%u, s=%u, X=%u\n",
+ hctx->ccid3hctx_t_ipi, hctx->ccid3hctx_delta,
+ hctx->ccid3hctx_s, (unsigned)(hctx->ccid3hctx_x >> 6));
+
}
/*
* Update X by
* fine-grained resolution of sending rates. This requires scaling by 2^6
* throughout the code. Only X_calc is unscaled (in bytes/second).
*
- * If X has changed, we also update the scheduled send time t_now,
- * the inter-packet interval t_ipi, and the delta value.
*/
static void ccid3_hc_tx_update_x(struct sock *sk, struct timeval *now)
{
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+ __u64 min_rate = 2 * hctx->ccid3hctx_x_recv;
const __u64 old_x = hctx->ccid3hctx_x;
+ /*
+ * Handle IDLE periods: do not reduce below RFC3390 initial sending rate
+ * when idling [RFC 4342, 5.1]. See also draft-ietf-dccp-rfc3448bis.
+ * For consistency with X and X_recv, min_rate is also scaled by 2^6.
+ */
+ if (unlikely(hctx->ccid3hctx_idle)) {
+ min_rate = rfc3390_initial_rate(sk);
+ min_rate = max(min_rate, 2 * hctx->ccid3hctx_x_recv);
+ }
+
if (hctx->ccid3hctx_p > 0) {
hctx->ccid3hctx_x = min(((__u64)hctx->ccid3hctx_x_calc) << 6,
- hctx->ccid3hctx_x_recv * 2);
+ min_rate);
hctx->ccid3hctx_x = max(hctx->ccid3hctx_x,
(((__u64)hctx->ccid3hctx_s) << 6) /
TFRC_T_MBI);
(suseconds_t)hctx->ccid3hctx_rtt >= 0) {
hctx->ccid3hctx_x =
- max(2 * min(hctx->ccid3hctx_x, hctx->ccid3hctx_x_recv),
+ max(min(2 * hctx->ccid3hctx_x, min_rate),
scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
hctx->ccid3hctx_rtt));
hctx->ccid3hctx_t_ld = *now;
}
- if (hctx->ccid3hctx_x != old_x)
- ccid3_update_send_time(hctx);
+ if (hctx->ccid3hctx_x != old_x) {
+ ccid3_pr_debug("X_prev=%u, X_now=%u, X_calc=%u, "
+ "X_recv=%u\n", (unsigned)(old_x >> 6),
+ (unsigned)(hctx->ccid3hctx_x >> 6),
+ hctx->ccid3hctx_x_calc,
+ (unsigned)(hctx->ccid3hctx_x_recv >> 6));
+
+ ccid3_update_send_interval(hctx);
+ }
}
/*
*/
static inline void ccid3_hc_tx_update_s(struct ccid3_hc_tx_sock *hctx, int len)
{
- if (unlikely(len == 0))
- ccid3_pr_debug("Packet payload length is 0 - not updating\n");
- else
- hctx->ccid3hctx_s = hctx->ccid3hctx_s == 0 ? len :
- (9 * hctx->ccid3hctx_s + len) / 10;
- /*
- * Note: We could do a potential optimisation here - when `s' changes,
- * recalculate sending rate and consequently t_ipi, t_delta, and
- * t_now. This is however non-standard, and the benefits are not
- * clear, so it is currently left out.
- */
+ const u16 old_s = hctx->ccid3hctx_s;
+
+ hctx->ccid3hctx_s = old_s == 0 ? len : (9 * old_s + len) / 10;
+
+ if (hctx->ccid3hctx_s != old_s)
+ ccid3_update_send_interval(hctx);
}
/*
{
struct sock *sk = (struct sock *)data;
struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+ struct timeval now;
unsigned long t_nfb = USEC_PER_SEC / 5;
bh_lock_sock(sk);
ccid3_pr_debug("%s(%p, state=%s) - entry \n", dccp_role(sk), sk,
ccid3_tx_state_name(hctx->ccid3hctx_state));
+ hctx->ccid3hctx_idle = 1;
+
switch (hctx->ccid3hctx_state) {
case TFRC_SSTATE_NO_FBACK:
/* RFC 3448, 4.4: Halve send rate directly */
/* The value of R is still undefined and so we can not recompute
* the timout value. Keep initial value as per [RFC 4342, 5]. */
t_nfb = TFRC_INITIAL_TIMEOUT;
- ccid3_update_send_time(hctx);
+ ccid3_update_send_interval(hctx);
break;
case TFRC_SSTATE_FBACK:
/*
- * Check if IDLE since last timeout and recv rate is less than
- * 4 packets (in units of 64*bytes/sec) per RTT
+ * Modify the cached value of X_recv [RFC 3448, 4.4]
+ *
+ * If (p == 0 || X_calc > 2 * X_recv)
+ * X_recv = max(X_recv / 2, s / (2 * t_mbi));
+ * Else
+ * X_recv = X_calc / 4;
+ *
+ * Note that X_recv is scaled by 2^6 while X_calc is not
*/
- if (!hctx->ccid3hctx_idle ||
- (hctx->ccid3hctx_x_recv >= 4 *
- scaled_div(((__u64)hctx->ccid3hctx_s) << 6,
- hctx->ccid3hctx_rtt))) {
- struct timeval now;
+ BUG_ON(hctx->ccid3hctx_p && !hctx->ccid3hctx_x_calc);
- ccid3_pr_debug("%s(%p, state=%s), not idle\n",
- dccp_role(sk), sk,
- ccid3_tx_state_name(hctx->ccid3hctx_state));
+ if (hctx->ccid3hctx_p == 0 ||
+ (hctx->ccid3hctx_x_calc > (hctx->ccid3hctx_x_recv >> 5))) {
- /*
- * Modify the cached value of X_recv [RFC 3448, 4.4]
- *
- * If (p == 0 || X_calc > 2 * X_recv)
- * X_recv = max(X_recv / 2, s / (2 * t_mbi));
- * Else
- * X_recv = X_calc / 4;
- *
- * Note that X_recv is scaled by 2^6 while X_calc is not
- */
- BUG_ON(hctx->ccid3hctx_p && !hctx->ccid3hctx_x_calc);
-
- if (hctx->ccid3hctx_p == 0 ||
- (hctx->ccid3hctx_x_calc >
- (hctx->ccid3hctx_x_recv >> 5))) {
-
- hctx->ccid3hctx_x_recv =
- max(hctx->ccid3hctx_x_recv / 2,
- (((__u64)hctx->ccid3hctx_s) << 6) /
- (2 * TFRC_T_MBI));
-
- if (hctx->ccid3hctx_p == 0)
- dccp_timestamp(sk, &now);
- } else {
- hctx->ccid3hctx_x_recv = hctx->ccid3hctx_x_calc;
- hctx->ccid3hctx_x_recv <<= 4;
- }
- /* Now recalculate X [RFC 3448, 4.3, step (4)] */
- ccid3_hc_tx_update_x(sk, &now);
+ hctx->ccid3hctx_x_recv =
+ max(hctx->ccid3hctx_x_recv / 2,
+ (((__u64)hctx->ccid3hctx_s) << 6) /
+ (2 * TFRC_T_MBI));
+
+ if (hctx->ccid3hctx_p == 0)
+ dccp_timestamp(sk, &now);
+ } else {
+ hctx->ccid3hctx_x_recv = hctx->ccid3hctx_x_calc;
+ hctx->ccid3hctx_x_recv <<= 4;
}
+ /* Now recalculate X [RFC 3448, 4.3, step (4)] */
+ ccid3_hc_tx_update_x(sk, &now);
/*
* Schedule no feedback timer to expire in
* max(t_RTO, 2 * s/X) = max(t_RTO, 2 * t_ipi)
goto out;
}
- hctx->ccid3hctx_idle = 1;
-
restart_timer:
sk_reset_timer(sk, &hctx->ccid3hctx_no_feedback_timer,
jiffies + usecs_to_jiffies(t_nfb));
usecs_to_jiffies(TFRC_INITIAL_TIMEOUT)));
hctx->ccid3hctx_last_win_count = 0;
hctx->ccid3hctx_t_last_win_count = now;
- ccid3_hc_tx_set_state(sk, TFRC_SSTATE_NO_FBACK);
-
- /* Set initial sending rate X/s to 1pps (X is scaled by 2^6) */
- ccid3_hc_tx_update_s(hctx, skb->len);
- hctx->ccid3hctx_x = hctx->ccid3hctx_s;
- hctx->ccid3hctx_x <<= 6;
-
- /* First timeout, according to [RFC 3448, 4.2], is 1 second */
- hctx->ccid3hctx_t_ipi = USEC_PER_SEC;
- /* Initial delta: minimum of 0.5 sec and t_gran/2 */
- hctx->ccid3hctx_delta = TFRC_OPSYS_HALF_TIME_GRAN;
/* Set t_0 for initial packet */
hctx->ccid3hctx_t_nom = now;
+
+ hctx->ccid3hctx_s = skb->len;
+
+ /*
+ * Use initial RTT sample when available: recommended by erratum
+ * to RFC 4342. This implements the initialisation procedure of
+ * draft rfc3448bis, section 4.2. Remember, X is scaled by 2^6.
+ */
+ if (dp->dccps_syn_rtt) {
+ ccid3_pr_debug("SYN RTT = %uus\n", dp->dccps_syn_rtt);
+ hctx->ccid3hctx_rtt = dp->dccps_syn_rtt;
+ hctx->ccid3hctx_x = rfc3390_initial_rate(sk);
+ hctx->ccid3hctx_t_ld = now;
+ } else {
+ /* Sender does not have RTT sample: X = MSS/second */
+ hctx->ccid3hctx_x = dp->dccps_mss_cache;
+ hctx->ccid3hctx_x <<= 6;
+ }
+ ccid3_update_send_interval(hctx);
+
+ ccid3_hc_tx_set_state(sk, TFRC_SSTATE_NO_FBACK);
break;
case TFRC_SSTATE_NO_FBACK:
case TFRC_SSTATE_FBACK:
delay = timeval_delta(&hctx->ccid3hctx_t_nom, &now);
+ ccid3_pr_debug("delay=%ld\n", (long)delay);
/*
* Scheduling of packet transmissions [RFC 3448, 4.6]
*
/* prepare to send now (add options etc.) */
dp->dccps_hc_tx_insert_options = 1;
DCCP_SKB_CB(skb)->dccpd_ccval = hctx->ccid3hctx_last_win_count;
+ hctx->ccid3hctx_idle = 0;
/* set the nominal send time for the next following packet */
timeval_add_usecs(&hctx->ccid3hctx_t_nom, hctx->ccid3hctx_t_ipi);
packet->dccphtx_seqno = dccp_sk(sk)->dccps_gss;
packet->dccphtx_rtt = hctx->ccid3hctx_rtt;
packet->dccphtx_sent = 1;
- hctx->ccid3hctx_idle = 0;
}
static void ccid3_hc_tx_packet_recv(struct sock *sk, struct sk_buff *skb)
struct dccp_tx_hist_entry *packet;
struct timeval now;
unsigned long t_nfb;
- u32 pinv;
- suseconds_t r_sample, t_elapsed;
+ u32 pinv, r_sample;
BUG_ON(hctx == NULL);
* Calculate new round trip sample as per [RFC 3448, 4.3] by
* R_sample = (now - t_recvdata) - t_elapsed
*/
- r_sample = timeval_delta(&now, &packet->dccphtx_tstamp);
- t_elapsed = dp->dccps_options_received.dccpor_elapsed_time * 10;
-
- DCCP_BUG_ON(r_sample < 0);
- if (unlikely(r_sample <= t_elapsed))
- DCCP_WARN("WARNING: r_sample=%dus <= t_elapsed=%dus\n",
- (int)r_sample, (int)t_elapsed);
- else
- r_sample -= t_elapsed;
- CCID3_RTT_SANITY_CHECK(r_sample);
+ r_sample = dccp_sample_rtt(sk, &now, &packet->dccphtx_tstamp);
- /* Update RTT estimate by
+ /*
+ * Update RTT estimate by
* If (No feedback recv)
* R = R_sample;
* Else
if (hctx->ccid3hctx_state == TFRC_SSTATE_NO_FBACK) {
/*
* Larger Initial Windows [RFC 4342, sec. 5]
- * We deviate in that we use `s' instead of `MSS'.
*/
- __u64 w_init = min(4 * hctx->ccid3hctx_s,
- max(2 * hctx->ccid3hctx_s, 4380));
hctx->ccid3hctx_rtt = r_sample;
- hctx->ccid3hctx_x = scaled_div(w_init << 6, r_sample);
+ hctx->ccid3hctx_x = rfc3390_initial_rate(sk);
hctx->ccid3hctx_t_ld = now;
- ccid3_update_send_time(hctx);
+ ccid3_update_send_interval(hctx);
- ccid3_pr_debug("%s(%p), s=%u, w_init=%llu, "
- "R_sample=%dus, X=%u\n", dccp_role(sk),
+ ccid3_pr_debug("%s(%p), s=%u, MSS=%u, "
+ "R_sample=%uus, X=%u\n", dccp_role(sk),
sk, hctx->ccid3hctx_s,
- (unsigned long long)w_init,
- (int)r_sample,
+ dp->dccps_mss_cache, r_sample,
(unsigned)(hctx->ccid3hctx_x >> 6));
ccid3_hc_tx_set_state(sk, TFRC_SSTATE_FBACK);
} else {
hctx->ccid3hctx_rtt = (9 * hctx->ccid3hctx_rtt +
- (u32)r_sample) / 10;
+ r_sample) / 10;
/* Update sending rate (step 4 of [RFC 3448, 4.3]) */
if (hctx->ccid3hctx_p > 0)
hctx->ccid3hctx_p);
ccid3_hc_tx_update_x(sk, &now);
- ccid3_pr_debug("%s(%p), RTT=%uus (sample=%dus), s=%u, "
+ ccid3_pr_debug("%s(%p), RTT=%uus (sample=%uus), s=%u, "
"p=%u, X_calc=%u, X_recv=%u, X=%u\n",
dccp_role(sk),
- sk, hctx->ccid3hctx_rtt, (int)r_sample,
+ sk, hctx->ccid3hctx_rtt, r_sample,
hctx->ccid3hctx_s, hctx->ccid3hctx_p,
hctx->ccid3hctx_x_calc,
(unsigned)(hctx->ccid3hctx_x_recv >> 6),
dccp_tx_hist_purge(ccid3_tx_hist, &hctx->ccid3hctx_hist);
}
+static void ccid3_hc_tx_get_info(struct sock *sk, struct tcp_info *info)
+{
+ const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+
+ /* Listen socks doesn't have a private CCID block */
+ if (sk->sk_state == DCCP_LISTEN)
+ return;
+
+ BUG_ON(hctx == NULL);
+
+ info->tcpi_rto = hctx->ccid3hctx_t_rto;
+ info->tcpi_rtt = hctx->ccid3hctx_rtt;
+}
+
+static int ccid3_hc_tx_getsockopt(struct sock *sk, const int optname, int len,
+ u32 __user *optval, int __user *optlen)
+{
+ const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+ const void *val;
+
+ /* Listen socks doesn't have a private CCID block */
+ if (sk->sk_state == DCCP_LISTEN)
+ return -EINVAL;
+
+ switch (optname) {
+ case DCCP_SOCKOPT_CCID_TX_INFO:
+ if (len < sizeof(hctx->ccid3hctx_tfrc))
+ return -EINVAL;
+ len = sizeof(hctx->ccid3hctx_tfrc);
+ val = &hctx->ccid3hctx_tfrc;
+ break;
+ default:
+ return -ENOPROTOOPT;
+ }
+
+ if (put_user(len, optlen) || copy_to_user(optval, val, len))
+ return -EFAULT;
+
+ return 0;
+}
+
/*
- * RX Half Connection methods
+ * Receiver Half-Connection Routines
*/
-
#ifdef CONFIG_IP_DCCP_CCID3_DEBUG
static const char *ccid3_rx_state_name(enum ccid3_hc_rx_states state)
{
const struct dccp_options_received *opt_recv;
struct dccp_rx_hist_entry *packet;
struct timeval now;
- u32 p_prev, rtt_prev;
- suseconds_t r_sample, t_elapsed;
+ u32 p_prev, r_sample, rtt_prev;
int loss, payload_size;
BUG_ON(hcrx == NULL);
break;
rtt_prev = hcrx->ccid3hcrx_rtt;
dccp_timestamp(sk, &now);
- timeval_sub_usecs(&now, opt_recv->dccpor_timestamp_echo * 10);
- r_sample = timeval_usecs(&now);
- t_elapsed = opt_recv->dccpor_elapsed_time * 10;
-
- DCCP_BUG_ON(r_sample < 0);
- if (unlikely(r_sample <= t_elapsed))
- DCCP_WARN("r_sample=%ldus, t_elapsed=%ldus\n",
- (long)r_sample, (long)t_elapsed);
- else
- r_sample -= t_elapsed;
- CCID3_RTT_SANITY_CHECK(r_sample);
+ r_sample = dccp_sample_rtt(sk, &now, NULL);
if (hcrx->ccid3hcrx_state == TFRC_RSTATE_NO_DATA)
hcrx->ccid3hcrx_rtt = r_sample;
info->tcpi_rcv_rtt = hcrx->ccid3hcrx_rtt;
}
-static void ccid3_hc_tx_get_info(struct sock *sk, struct tcp_info *info)
-{
- const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
-
- /* Listen socks doesn't have a private CCID block */
- if (sk->sk_state == DCCP_LISTEN)
- return;
-
- BUG_ON(hctx == NULL);
-
- info->tcpi_rto = hctx->ccid3hctx_t_rto;
- info->tcpi_rtt = hctx->ccid3hctx_rtt;
-}
-
static int ccid3_hc_rx_getsockopt(struct sock *sk, const int optname, int len,
u32 __user *optval, int __user *optlen)
{
return 0;
}
-static int ccid3_hc_tx_getsockopt(struct sock *sk, const int optname, int len,
- u32 __user *optval, int __user *optlen)
-{
- const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
- const void *val;
-
- /* Listen socks doesn't have a private CCID block */
- if (sk->sk_state == DCCP_LISTEN)
- return -EINVAL;
-
- switch (optname) {
- case DCCP_SOCKOPT_CCID_TX_INFO:
- if (len < sizeof(hctx->ccid3hctx_tfrc))
- return -EINVAL;
- len = sizeof(hctx->ccid3hctx_tfrc);
- val = &hctx->ccid3hctx_tfrc;
- break;
- default:
- return -ENOPROTOOPT;
- }
-
- if (put_user(len, optlen) || copy_to_user(optval, val, len))
- return -EFAULT;
-
- return 0;
-}
-
static struct ccid_operations ccid3 = {
.ccid_id = DCCPC_CCID3,
.ccid_name = "ccid3",
/* Parameter t_mbi from [RFC 3448, 4.3]: backoff interval in seconds */
#define TFRC_T_MBI 64
-/* What we think is a reasonable upper limit on RTT values */
-#define CCID3_SANE_RTT_MAX ((suseconds_t)(4 * USEC_PER_SEC))
-
-#define CCID3_RTT_SANITY_CHECK(rtt) do { \
- if (rtt > CCID3_SANE_RTT_MAX) { \
- DCCP_CRIT("RTT (%d) too large, substituting %d", \
- (int)rtt, (int)CCID3_SANE_RTT_MAX); \
- rtt = CCID3_SANE_RTT_MAX; \
- } } while (0)
-
enum ccid3_options {
TFRC_OPT_LOSS_EVENT_RATE = 192,
TFRC_OPT_LOSS_INTERVALS = 193,
u32 w_tot = 0;
list_for_each_entry_safe(li_entry, li_next, list, dccplih_node) {
- if (li_entry->dccplih_interval != ~0) {
+ if (li_entry->dccplih_interval != ~0U) {
i_tot0 += li_entry->dccplih_interval * dccp_li_hist_w[i];
w_tot += dccp_li_hist_w[i];
if (i != 0)
__stringify(cond)); \
} while (0)
-#ifdef MODULE
#define DCCP_PRINTK(enable, fmt, args...) do { if (enable) \
printk(fmt, ##args); \
} while(0)
-#else
-#define DCCP_PRINTK(enable, fmt, args...) printk(fmt, ##args)
-#endif
#define DCCP_PR_DEBUG(enable, fmt, a...) DCCP_PRINTK(enable, KERN_DEBUG \
"%s: " fmt, __FUNCTION__, ##a)
/* RFC 1122, 4.2.3.1 initial RTO value */
#define DCCP_TIMEOUT_INIT ((unsigned)(3 * HZ))
+#define DCCP_RTO_MAX ((unsigned)(120 * HZ)) /* FIXME: using TCP value */
+
+/* bounds for sampled RTT values from packet exchanges (in usec) */
+#define DCCP_SANE_RTT_MIN 100
+#define DCCP_SANE_RTT_MAX (4 * USEC_PER_SEC)
+
/* Maximal interval between probes for local resources. */
#define DCCP_RESOURCE_PROBE_INTERVAL ((unsigned)(HZ / 2U))
-#define DCCP_RTO_MAX ((unsigned)(120 * HZ)) /* FIXME: using TCP value */
-
/* sysctl variables for DCCP */
extern int sysctl_dccp_request_retries;
extern int sysctl_dccp_retries1;
extern int sysctl_dccp_feat_send_ndp_count;
extern int sysctl_dccp_tx_qlen;
+/*
+ * 48-bit sequence number arithmetic (signed and unsigned)
+ */
+#define INT48_MIN 0x800000000000LL /* 2^47 */
+#define UINT48_MAX 0xFFFFFFFFFFFFLL /* 2^48 - 1 */
+#define COMPLEMENT48(x) (0x1000000000000LL - (x)) /* 2^48 - x */
+#define TO_SIGNED48(x) (((x) < INT48_MIN)? (x) : -COMPLEMENT48( (x)))
+#define TO_UNSIGNED48(x) (((x) >= 0)? (x) : COMPLEMENT48(-(x)))
+#define ADD48(a, b) (((a) + (b)) & UINT48_MAX)
+#define SUB48(a, b) ADD48((a), COMPLEMENT48(b))
+
+static inline void dccp_set_seqno(u64 *seqno, u64 value)
+{
+ *seqno = value & UINT48_MAX;
+}
+
+static inline void dccp_inc_seqno(u64 *seqno)
+{
+ *seqno = ADD48(*seqno, 1);
+}
+
+/* signed mod-2^48 distance: pos. if seqno1 < seqno2, neg. if seqno1 > seqno2 */
+static inline s64 dccp_delta_seqno(const u64 seqno1, const u64 seqno2)
+{
+ u64 delta = SUB48(seqno2, seqno1);
+
+ return TO_SIGNED48(delta);
+}
+
/* is seq1 < seq2 ? */
static inline int before48(const u64 seq1, const u64 seq2)
{
- return (s64)((seq1 << 16) - (seq2 << 16)) < 0;
+ return (s64)((seq2 << 16) - (seq1 << 16)) > 0;
}
/* is seq1 > seq2 ? */
-static inline int after48(const u64 seq1, const u64 seq2)
-{
- return (s64)((seq2 << 16) - (seq1 << 16)) < 0;
-}
+#define after48(seq1, seq2) before48(seq2, seq1)
/* is seq2 <= seq1 <= seq3 ? */
static inline int between48(const u64 seq1, const u64 seq2, const u64 seq3)
/* is seq1 next seqno after seq2 */
static inline int follows48(const u64 seq1, const u64 seq2)
{
- int diff = (seq1 & 0xFFFF) - (seq2 & 0xFFFF);
-
- return diff==1;
+ return dccp_delta_seqno(seq2, seq1) == 1;
}
enum {
extern int dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
extern void dccp_send_close(struct sock *sk, const int active);
extern int dccp_invalid_packet(struct sk_buff *skb);
+extern u32 dccp_sample_rtt(struct sock *sk, struct timeval *t_recv,
+ struct timeval *t_history);
static inline int dccp_bad_service_code(const struct sock *sk,
const __be32 service)
return type == DCCP_PKT_DATA || type == DCCP_PKT_REQUEST;
}
-#define DCCP_MAX_SEQNO ((((u64)1) << 48) - 1)
-#define DCCP_PKT_WITHOUT_ACK_SEQ (DCCP_MAX_SEQNO << 2)
-
-static inline void dccp_set_seqno(u64 *seqno, u64 value)
-{
- if (value > DCCP_MAX_SEQNO)
- value -= DCCP_MAX_SEQNO + 1;
- *seqno = value;
-}
-
-static inline u64 dccp_delta_seqno(u64 seqno1, u64 seqno2)
-{
- return ((seqno2 << 16) - (seqno1 << 16)) >> 16;
-}
-
-static inline void dccp_inc_seqno(u64 *seqno)
-{
- if (++*seqno > DCCP_MAX_SEQNO)
- *seqno = 0;
-}
+#define DCCP_PKT_WITHOUT_ACK_SEQ (UINT48_MAX << 2)
static inline void dccp_hdr_set_seq(struct dccp_hdr *dh, const u64 gss)
{
dh->dccph_type == DCCP_PKT_SYNCACK) {
if (between48(DCCP_SKB_CB(skb)->dccpd_ack_seq,
dp->dccps_awl, dp->dccps_awh) &&
- !before48(DCCP_SKB_CB(skb)->dccpd_seq, dp->dccps_swl))
+ dccp_delta_seqno(dp->dccps_swl,
+ DCCP_SKB_CB(skb)->dccpd_seq) >= 0)
dccp_update_gsr(sk, DCCP_SKB_CB(skb)->dccpd_seq);
else
return -1;
if (dp->dccps_role != DCCP_ROLE_CLIENT)
goto send_sync;
check_seq:
- if (!before48(DCCP_SKB_CB(skb)->dccpd_seq, dp->dccps_osr)) {
+ if (dccp_delta_seqno(dp->dccps_osr,
+ DCCP_SKB_CB(skb)->dccpd_seq) >= 0) {
send_sync:
dccp_send_sync(sk, DCCP_SKB_CB(skb)->dccpd_seq,
DCCP_PKT_SYNC);
if (dccp_parse_options(sk, skb))
goto out_invalid_packet;
+ /* Obtain RTT sample from SYN exchange (used by CCID 3) */
+ if (dp->dccps_options_received.dccpor_timestamp_echo) {
+ struct timeval now;
+
+ dccp_timestamp(sk, &now);
+ dp->dccps_syn_rtt = dccp_sample_rtt(sk, &now, NULL);
+ }
+
if (dccp_msk(sk)->dccpms_send_ack_vector &&
dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk,
DCCP_SKB_CB(skb)->dccpd_seq,
}
EXPORT_SYMBOL_GPL(dccp_rcv_state_process);
+
+/**
+ * dccp_sample_rtt - Sample RTT from packet exchange
+ *
+ * @sk: connected dccp_sock
+ * @t_recv: receive timestamp of packet with timestamp echo
+ * @t_hist: packet history timestamp or NULL
+ */
+u32 dccp_sample_rtt(struct sock *sk, struct timeval *t_recv,
+ struct timeval *t_hist)
+{
+ struct dccp_sock *dp = dccp_sk(sk);
+ struct dccp_options_received *or = &dp->dccps_options_received;
+ suseconds_t delta;
+
+ if (t_hist == NULL) {
+ if (!or->dccpor_timestamp_echo) {
+ DCCP_WARN("packet without timestamp echo\n");
+ return DCCP_SANE_RTT_MAX;
+ }
+ timeval_sub_usecs(t_recv, or->dccpor_timestamp_echo * 10);
+ delta = timeval_usecs(t_recv);
+ } else
+ delta = timeval_delta(t_recv, t_hist);
+
+ delta -= or->dccpor_elapsed_time * 10; /* either set or 0 */
+
+ if (unlikely(delta <= 0)) {
+ DCCP_WARN("unusable RTT sample %ld, using min\n", (long)delta);
+ return DCCP_SANE_RTT_MIN;
+ }
+ if (unlikely(delta - (suseconds_t)DCCP_SANE_RTT_MAX > 0)) {
+ DCCP_WARN("RTT sample %ld too large, using max\n", (long)delta);
+ return DCCP_SANE_RTT_MAX;
+ }
+
+ return delta;
+}
+
+EXPORT_SYMBOL_GPL(dccp_sample_rtt);
(iph->ihl << 2));
struct dccp_sock *dp;
struct inet_sock *inet;
- const int type = skb->h.icmph->type;
- const int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct sock *sk;
__u64 seq;
int err;
static inline u64 dccp_v4_init_sequence(const struct sk_buff *skb)
{
- return secure_dccp_sequence_number(skb->nh.iph->daddr,
- skb->nh.iph->saddr,
+ return secure_dccp_sequence_number(ip_hdr(skb)->daddr,
+ ip_hdr(skb)->saddr,
dccp_hdr(skb)->dccph_dport,
dccp_hdr(skb)->dccph_sport);
}
newinet->opt = ireq->opt;
ireq->opt = NULL;
newinet->mc_index = inet_iif(skb);
- newinet->mc_ttl = skb->nh.iph->ttl;
+ newinet->mc_ttl = ip_hdr(skb)->ttl;
newinet->id = jiffies;
dccp_sync_mss(newsk, dst_mtu(dst));
static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
{
const struct dccp_hdr *dh = dccp_hdr(skb);
- const struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
struct sock *nsk;
struct request_sock **prev;
/* Find possible connection requests. */
struct rtable *rt;
struct flowi fl = { .oif = ((struct rtable *)skb->dst)->rt_iif,
.nl_u = { .ip4_u =
- { .daddr = skb->nh.iph->saddr,
- .saddr = skb->nh.iph->daddr,
+ { .daddr = ip_hdr(skb)->saddr,
+ .saddr = ip_hdr(skb)->daddr,
.tos = RT_CONN_FLAGS(sk) } },
.proto = sk->sk_protocol,
.uli_u = { .ports =
{
int err;
struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh;
+ const struct iphdr *rxiph;
const int dccp_hdr_reset_len = sizeof(struct dccp_hdr) +
sizeof(struct dccp_hdr_ext) +
sizeof(struct dccp_hdr_reset);
dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq);
dccp_csum_outgoing(skb);
- dh->dccph_checksum = dccp_v4_csum_finish(skb, rxskb->nh.iph->saddr,
- rxskb->nh.iph->daddr);
+ rxiph = ip_hdr(rxskb);
+ dh->dccph_checksum = dccp_v4_csum_finish(skb, rxiph->saddr,
+ rxiph->daddr);
bh_lock_sock(dccp_v4_ctl_socket->sk);
err = ip_build_and_send_pkt(skb, dccp_v4_ctl_socket->sk,
- rxskb->nh.iph->daddr,
- rxskb->nh.iph->saddr, NULL);
+ rxiph->daddr, rxiph->saddr, NULL);
bh_unlock_sock(dccp_v4_ctl_socket->sk);
if (net_xmit_eval(err) == 0) {
goto drop_and_free;
ireq = inet_rsk(req);
- ireq->loc_addr = skb->nh.iph->daddr;
- ireq->rmt_addr = skb->nh.iph->saddr;
+ ireq->loc_addr = ip_hdr(skb)->daddr;
+ ireq->rmt_addr = ip_hdr(skb)->saddr;
ireq->opt = NULL;
/*
static int dccp_v4_rcv(struct sk_buff *skb)
{
const struct dccp_hdr *dh;
+ const struct iphdr *iph;
struct sock *sk;
int min_cov;
if (dccp_invalid_packet(skb))
goto discard_it;
+ iph = ip_hdr(skb);
/* Step 1: If header checksum is incorrect, drop packet and return */
- if (dccp_v4_csum_finish(skb, skb->nh.iph->saddr, skb->nh.iph->daddr)) {
+ if (dccp_v4_csum_finish(skb, iph->saddr, iph->daddr)) {
DCCP_WARN("dropped packet with invalid checksum\n");
goto discard_it;
}
"src=%u.%u.%u.%u@%-5d "
"dst=%u.%u.%u.%u@%-5d seq=%llu",
dccp_packet_name(dh->dccph_type),
- NIPQUAD(skb->nh.iph->saddr), ntohs(dh->dccph_sport),
- NIPQUAD(skb->nh.iph->daddr), ntohs(dh->dccph_dport),
+ NIPQUAD(iph->saddr), ntohs(dh->dccph_sport),
+ NIPQUAD(iph->daddr), ntohs(dh->dccph_dport),
(unsigned long long) DCCP_SKB_CB(skb)->dccpd_seq);
if (dccp_packet_without_ack(skb)) {
/* Step 2:
* Look up flow ID in table and get corresponding socket */
sk = __inet_lookup(&dccp_hashinfo,
- skb->nh.iph->saddr, dh->dccph_sport,
- skb->nh.iph->daddr, dh->dccph_dport,
- inet_iif(skb));
-
+ iph->saddr, dh->dccph_sport,
+ iph->daddr, dh->dccph_dport, inet_iif(skb));
/*
* Step 2:
* If no socket ...
static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb)
{
- return secure_dccpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32,
- skb->nh.ipv6h->saddr.s6_addr32,
+ return secure_dccpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
+ ipv6_hdr(skb)->saddr.s6_addr32,
dccp_hdr(skb)->dccph_dport,
dccp_hdr(skb)->dccph_sport );
if (rxopt->srcrt)
opt = ipv6_invert_rthdr(sk,
- (struct ipv6_rt_hdr *)(pktopts->nh.raw +
- rxopt->srcrt));
+ (struct ipv6_rt_hdr *)(skb_network_header(pktopts) +
+ rxopt->srcrt));
}
if (opt != NULL && opt->srcrt != NULL) {
static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
{
struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh;
+ struct ipv6hdr *rxip6h;
const u32 dccp_hdr_reset_len = sizeof(struct dccp_hdr) +
sizeof(struct dccp_hdr_ext) +
sizeof(struct dccp_hdr_reset);
dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq);
dccp_csum_outgoing(skb);
- dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxskb->nh.ipv6h->saddr,
- &rxskb->nh.ipv6h->daddr);
+ rxip6h = ipv6_hdr(rxskb);
+ dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxip6h->saddr,
+ &rxip6h->daddr);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &rxskb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &rxskb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &rxip6h->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &rxip6h->daddr);
fl.proto = IPPROTO_DCCP;
fl.oif = inet6_iif(rxskb);
static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
{
const struct dccp_hdr *dh = dccp_hdr(skb);
- const struct ipv6hdr *iph = skb->nh.ipv6h;
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct sock *nsk;
struct request_sock **prev;
/* Find possible connection requests. */
goto drop_and_free;
ireq6 = inet6_rsk(req);
- ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr);
ireq6->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) ||
newnp->pktoptions = NULL;
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count
if (rxopt->srcrt)
opt = ipv6_invert_rthdr(sk,
- (struct ipv6_rt_hdr *)(ireq6->pktopts->nh.raw +
- rxopt->srcrt));
+ (struct ipv6_rt_hdr *)(skb_network_header(ireq6->pktopts) +
+ rxopt->srcrt));
}
if (dst == NULL) {
}
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* Clone native IPv6 options from listening socket (if any)
goto discard_it;
/* Step 1: If header checksum is incorrect, drop packet and return. */
- if (dccp_v6_csum_finish(skb, &skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr)) {
+ if (dccp_v6_csum_finish(skb, &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr)) {
DCCP_WARN("dropped packet with invalid checksum\n");
goto discard_it;
}
/* Step 2:
* Look up flow ID in table and get corresponding socket */
- sk = __inet6_lookup(&dccp_hashinfo, &skb->nh.ipv6h->saddr,
+ sk = __inet6_lookup(&dccp_hashinfo, &ipv6_hdr(skb)->saddr,
dh->dccph_sport,
- &skb->nh.ipv6h->daddr, ntohs(dh->dccph_dport),
+ &ipv6_hdr(skb)->daddr, ntohs(dh->dccph_dport),
inet6_iif(skb));
/*
* Step 2:
struct inet_timewait_death_row dccp_death_row = {
.sysctl_max_tw_buckets = NR_FILE * 2,
.period = DCCP_TIMEWAIT_LEN / INET_TWDR_TWKILL_SLOTS,
- .death_lock = SPIN_LOCK_UNLOCKED,
+ .death_lock = __SPIN_LOCK_UNLOCKED(dccp_death_row.death_lock),
.hashinfo = &dccp_hashinfo,
.tw_timer = TIMER_INITIALIZER(inet_twdr_hangman, 0,
(unsigned long)&dccp_death_row),
int sysctl_dccp_feat_send_ack_vector = DCCPF_INITIAL_SEND_ACK_VECTOR;
int sysctl_dccp_feat_send_ndp_count = DCCPF_INITIAL_SEND_NDP_COUNT;
-EXPORT_SYMBOL_GPL(sysctl_dccp_feat_sequence_window);
-
void dccp_minisock_init(struct dccp_minisock *dmsk)
{
dmsk->dccpms_sequence_window = sysctl_dccp_feat_sequence_window;
opt_recv->dccpor_timestamp_echo = ntohl(*(__be32 *)value);
dccp_pr_debug("%s rx opt: TIMESTAMP_ECHO=%u, len=%d, "
- "ackno=%llu, ", dccp_role(sk),
+ "ackno=%llu", dccp_role(sk),
opt_recv->dccpor_timestamp_echo,
len + 2,
(unsigned long long)
DCCP_SKB_CB(skb)->dccpd_ack_seq);
- if (len == 4)
+ if (len == 4) {
+ dccp_pr_debug_cat("\n");
break;
+ }
if (len == 6)
elapsed_time = ntohs(*(__be16 *)(value + 4));
else
elapsed_time = ntohl(*(__be32 *)(value + 4));
+ dccp_pr_debug_cat(", ELAPSED_TIME=%d\n", elapsed_time);
+
/* Give precedence to the biggest ELAPSED_TIME */
if (elapsed_time > opt_recv->dccpor_elapsed_time)
opt_recv->dccpor_elapsed_time = elapsed_time;
dccp_insert_options_feat(sk, skb))
return -1;
+ /*
+ * Obtain RTT sample from Request/Response exchange.
+ * This is currently used in CCID 3 initialisation.
+ */
+ if (DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_REQUEST &&
+ dccp_insert_option_timestamp(sk, skb))
+ return -1;
+
/* XXX: insert other options when appropriate */
if (DCCP_SKB_CB(skb)->dccpd_opt_len != 0) {
rc = ccid_hc_tx_send_packet(dp->dccps_hc_tx_ccid, sk, skb);
if (rc <= 0)
break;
+ dccp_pr_debug("delayed send by %d msec\n", rc);
delay = msecs_to_jiffies(rc);
sk->sk_write_pending++;
release_sock(sk);
DCCP_BUG("err=%d after ccid_hc_tx_packet_sent",
err);
} else {
- dccp_pr_debug("packet discarded\n");
+ dccp_pr_debug("packet discarded due to err=%d\n", err);
kfree_skb(skb);
}
}
if (port == 0 || ntohs(inet->dport) == port ||
ntohs(inet->sport) == port) {
if (hctx)
- printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d %d %d %d %d\n",
- NIPQUAD(inet->saddr), ntohs(inet->sport),
- NIPQUAD(inet->daddr), ntohs(inet->dport), size,
- hctx->ccid3hctx_s, hctx->ccid3hctx_rtt,
- hctx->ccid3hctx_p, hctx->ccid3hctx_t_ipi);
+ printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d %d %d %d %u "
+ "%llu %llu %d\n",
+ NIPQUAD(inet->saddr), ntohs(inet->sport),
+ NIPQUAD(inet->daddr), ntohs(inet->dport), size,
+ hctx->ccid3hctx_s, hctx->ccid3hctx_rtt,
+ hctx->ccid3hctx_p, hctx->ccid3hctx_x_calc,
+ hctx->ccid3hctx_x_recv >> 6,
+ hctx->ccid3hctx_x >> 6, hctx->ccid3hctx_t_ipi);
else
printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d\n",
- NIPQUAD(inet->saddr), ntohs(inet->sport),
- NIPQUAD(inet->daddr), ntohs(inet->dport), size);
+ NIPQUAD(inet->saddr), ntohs(inet->sport),
+ NIPQUAD(inet->daddr), ntohs(inet->dport), size);
}
jprobe_return();
static void __exit decnet_exit(void)
{
sock_unregister(AF_DECnet);
+ rtnl_unregister_all(PF_DECnet);
dev_remove_pack(&dn_dix_packet_type);
dn_unregister_sysctl();
skip_ndevs = cb->args[0];
skip_naddr = cb->args[1];
- read_lock(&dev_base_lock);
for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
if (idx < skip_ndevs)
continue;
}
}
done:
- read_unlock(&dev_base_lock);
-
cb->args[0] = idx;
cb->args[1] = dn_idx;
pktlen = (__le16 *)skb_push(skb,2);
*pktlen = dn_htons(skb->len - 2);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
dn_rt_finish_output(skb, dn_rt_all_rt_mcast, msg->id);
}
pktlen = (__le16 *)skb_push(skb, 2);
*pktlen = dn_htons(skb->len - 2);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
if (dn_am_i_a_router(dn, dn_db, ifa)) {
struct sk_buff *skb2 = skb_copy(skb, GFP_ATOMIC);
#endif /* CONFIG_PROC_FS */
-static struct rtnetlink_link dnet_rtnetlink_table[RTM_NR_MSGTYPES] =
-{
- [RTM_NEWADDR - RTM_BASE] = { .doit = dn_nl_newaddr, },
- [RTM_DELADDR - RTM_BASE] = { .doit = dn_nl_deladdr, },
- [RTM_GETADDR - RTM_BASE] = { .dumpit = dn_nl_dump_ifaddr, },
-#ifdef CONFIG_DECNET_ROUTER
- [RTM_NEWROUTE - RTM_BASE] = { .doit = dn_fib_rtm_newroute, },
- [RTM_DELROUTE - RTM_BASE] = { .doit = dn_fib_rtm_delroute, },
- [RTM_GETROUTE - RTM_BASE] = { .doit = dn_cache_getroute,
- .dumpit = dn_fib_dump, },
- [RTM_GETRULE - RTM_BASE] = { .dumpit = dn_fib_dump_rules, },
-#else
- [RTM_GETROUTE - RTM_BASE] = { .doit = dn_cache_getroute,
- .dumpit = dn_cache_dump, },
-#endif
-
-};
-
static int __initdata addr[2];
module_param_array(addr, int, NULL, 0444);
MODULE_PARM_DESC(addr, "The DECnet address of this machine: area,node");
dn_dev_devices_on();
- rtnetlink_links[PF_DECnet] = dnet_rtnetlink_table;
+ rtnl_register(PF_DECnet, RTM_NEWADDR, dn_nl_newaddr, NULL);
+ rtnl_register(PF_DECnet, RTM_DELADDR, dn_nl_deladdr, NULL);
+ rtnl_register(PF_DECnet, RTM_GETADDR, NULL, dn_nl_dump_ifaddr);
proc_net_fops_create("decnet_dev", S_IRUGO, &dn_dev_seq_fops);
void __exit dn_dev_cleanup(void)
{
- rtnetlink_links[PF_DECnet] = NULL;
-
#ifdef CONFIG_SYSCTL
{
int i;
return 0;
}
-int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
struct dn_fib_table *tb;
struct rtattr **rta = arg;
return -ESRCH;
}
-int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
struct dn_fib_table *tb;
struct rtattr **rta = arg;
void __init dn_fib_init(void)
{
-
dn_fib_table_init();
dn_fib_rules_init();
register_dnaddr_notifier(&dn_fib_dnaddr_notifier);
+
+ rtnl_register(PF_DECnet, RTM_NEWROUTE, dn_fib_rtm_newroute, NULL);
+ rtnl_register(PF_DECnet, RTM_DELROUTE, dn_fib_rtm_delroute, NULL);
}
lp->s_class = 0;
lp->pt = 0;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
sp->srcnode = cb->src;
sp->forward = cb->hops & 0x3f;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
sp->srcnode = cb->src & dn_htons(0x03ff);
sp->forward = cb->hops & 0x3f;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
return NF_HOOK(PF_DECnet, NF_DN_POST_ROUTING, skb, NULL, neigh->dev, dn_neigh_output_packet);
}
u16 dlen = *skb->data;
if ((dlen <= 16) && (dlen <= skb->len)) {
scp->conndata_in.opt_optl = dn_htons(dlen);
- memcpy(scp->conndata_in.opt_data, skb->data + 1, dlen);
+ skb_copy_from_linear_data_offset(skb, 1,
+ scp->conndata_in.opt_data, dlen);
}
}
dn_nsp_send_link(sk, DN_NOCHANGE, 0);
u16 dlen = *skb->data;
if ((dlen <= 16) && (dlen <= skb->len)) {
scp->discdata_in.opt_optl = dn_htons(dlen);
- memcpy(scp->discdata_in.opt_data, skb->data + 1, dlen);
+ skb_copy_from_linear_data_offset(skb, 1, scp->discdata_in.opt_data, dlen);
}
}
if (!pskb_may_pull(skb, 2))
goto free_out;
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
cb->nsp_flags = *ptr++;
if (decnet_debug_level & 2)
struct dst_entry *dst;
struct flowi fl;
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
scp->stamp = jiffies;
dst = sk_dst_check(sk, 0);
if (scp->peer.sdn_objnum)
type = 0;
- skb_put(skb, dn_sockaddr2username(&scp->peer, skb->tail, type));
- skb_put(skb, dn_sockaddr2username(&scp->addr, skb->tail, 2));
+ skb_put(skb, dn_sockaddr2username(&scp->peer,
+ skb_tail_pointer(skb), type));
+ skb_put(skb, dn_sockaddr2username(&scp->addr,
+ skb_tail_pointer(skb), 2));
menuver = DN_MENUVER_ACC | DN_MENUVER_USR;
if (scp->peer.sdn_flags & SDF_PROXY)
#include <linux/rcupdate.h>
#include <linux/times.h>
#include <asm/errno.h>
+#include <net/netlink.h>
#include <net/neighbour.h>
#include <net/dst.h>
#include <net/flow.h>
__le16 tmp;
/* Add back headers */
- skb_push(skb, skb->data - skb->nh.raw);
+ skb_push(skb, skb->data - skb_network_header(skb));
if ((skb = skb_unshare(skb, GFP_ATOMIC)) == NULL)
return NET_RX_DROP;
unsigned char tmp[ETH_ALEN];
/* Add back all headers */
- skb_push(skb, skb->data - skb->nh.raw);
+ skb_push(skb, skb->data - skb_network_header(skb));
if ((skb = skb_unshare(skb, GFP_ATOMIC)) == NULL)
return NET_RX_DROP;
goto drop_it;
skb_pull(skb, 20);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
/* Destination info */
ptr += 2;
goto drop_it;
skb_pull(skb, 5);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
cb->dst = *(__le16 *)ptr;
ptr += 2;
flags = *skb->data;
}
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/*
* Weed out future version DECnet
struct dn_route *rt = (struct dn_route *)skb->dst;
struct rtmsg *r;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
long expires;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*r), flags);
if (rt->fl.iif)
RTA_PUT(skb, RTA_IIF, sizeof(int), &rt->fl.iif);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
/*
* This is called by both endnodes and routers now.
*/
-int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
+static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
{
struct rtattr **rta = arg;
struct rtmsg *rtm = NLMSG_DATA(nlh);
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (skb == NULL)
return -ENOBUFS;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
cb = DN_SKB_CB(skb);
if (rta[RTA_SRC-1])
dn_dst_ops.gc_thresh = (dn_rt_hash_mask + 1);
proc_net_fops_create("decnet_cache", S_IRUGO, &dn_rt_cache_seq_fops);
+
+#ifdef CONFIG_DECNET_ROUTER
+ rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute, dn_fib_dump);
+#else
+ rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
+ dn_cache_dump);
+#endif
}
void __exit dn_route_cleanup(void)
#include <net/dn_fib.h>
#include <net/dn_neigh.h>
#include <net/dn_dev.h>
+#include <net/dn_route.h>
static struct fib_rules_ops dn_fib_rules_ops;
return 0;
}
-int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
+static void dn_fib_rule_flush_cache(void)
{
- return fib_rules_dump(skb, cb, AF_DECnet);
+ dn_rt_cache_flush(-1);
}
static struct fib_rules_ops dn_fib_rules_ops = {
.compare = dn_fib_rule_compare,
.fill = dn_fib_rule_fill,
.default_pref = dn_fib_rule_default_pref,
+ .flush_cache = dn_fib_rule_flush_cache,
.nlgroup = RTNLGRP_DECnet_RULE,
.policy = dn_fib_rule_policy,
.rules_list = &dn_fib_rules,
#include <asm/uaccess.h>
#include <linux/route.h> /* RTF_xxx */
#include <net/neighbour.h>
+#include <net/netlink.h>
#include <net/dst.h>
#include <net/flow.h>
#include <net/fib_rules.h>
{
struct rtmsg *rtm;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*rtm), flags);
rtm = NLMSG_DATA(nlh);
nhp->rtnh_ifindex = nh->nh_oif;
if (nh->nh_gw)
RTA_PUT(skb, RTA_GATEWAY, 2, &nh->nh_gw);
- nhp->rtnh_len = skb->tail - (unsigned char *)nhp;
+ nhp->rtnh_len = skb_tail_pointer(skb) - (unsigned char *)nhp;
} endfor_nexthops(fi);
mp_head->rta_type = RTA_MULTIPATH;
- mp_head->rta_len = skb->tail - (u8*)mp_head;
+ mp_head->rta_len = skb_tail_pointer(skb) - (u8 *)mp_head;
}
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -EMSGSIZE;
}
{
struct sk_buff *skb = NULL;
size_t size;
- unsigned char *old_tail;
+ sk_buff_data_t old_tail;
struct nlmsghdr *nlh;
unsigned char *ptr;
struct nf_dn_rtmsg *rtm;
rtm = (struct nf_dn_rtmsg *)NLMSG_DATA(nlh);
rtm->nfdn_ifindex = rt_skb->dev->ifindex;
ptr = NFDN_RTMSG(rtm);
- memcpy(ptr, rt_skb->data, rt_skb->len);
+ skb_copy_from_linear_data(rt_skb, ptr, rt_skb->len);
nlh->nlmsg_len = skb->tail - old_tail;
return skb;
static inline void dnrmg_receive_user_skb(struct sk_buff *skb)
{
- struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
return;
int rv = 0;
dnrmg = netlink_kernel_create(NETLINK_DNRTMSG, DNRNG_NLGRP_MAX,
- dnrmg_receive_user_sk, THIS_MODULE);
+ dnrmg_receive_user_sk, NULL, THIS_MODULE);
if (dnrmg == NULL) {
printk(KERN_ERR "dn_rtmsg: Cannot create netlink socket");
return -ENOMEM;
err = memcpy_toiovec(msg->msg_iov, skb->data, copied);
if (err)
goto out_free;
- skb_get_timestamp(skb, &sk->sk_stamp);
+ sk->sk_stamp = skb->tstamp;
if (msg->msg_name)
memcpy(msg->msg_name, skb->cb, msg->msg_namelen);
goto out_unlock;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
eb = (struct ec_cb *)&skb->cb;
fh->cb = cb;
fh->port = port;
if (sock->type != SOCK_DGRAM) {
- skb->tail = skb->data;
+ skb_reset_tail_pointer(skb);
skb->len = 0;
} else if (res < 0)
goto out_free;
case SIOCGSTAMP:
return sock_get_timestamp(sk, argp);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, argp);
+
case SIOCSIFADDR:
case SIOCGIFADDR:
return ec_dev_ioctl(sock, cmd, argp);
static void aun_incoming(struct sk_buff *skb, struct aunhdr *ah, size_t len)
{
- struct iphdr *ip = skb->nh.iph;
+ struct iphdr *ip = ip_hdr(skb);
unsigned char stn = ntohl(ip->saddr) & 0xff;
struct sock *sk;
struct sk_buff *newskb;
printk(KERN_DEBUG "AUN: recvfrom() error %d\n", -err);
}
- data = skb->h.raw + sizeof(struct udphdr);
+ data = skb_transport_header(skb) + sizeof(struct udphdr);
ah = (struct aunhdr *)data;
len = skb->len - sizeof(struct udphdr);
- ip = skb->nh.iph;
+ ip = ip_hdr(skb);
switch (ah->code)
{
struct ethhdr *eth;
unsigned char *rawp;
- skb->mac.raw = skb->data;
+ skb->dev = dev;
+ skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
eth = eth_hdr(skb);
eth = (struct ethhdr *)
(((u8 *) hh->hh_data) + (HH_DATA_OFF(sizeof(*eth))));
- if (type == __constant_htons(ETH_P_802_3))
+ if (type == htons(ETH_P_802_3))
return -1;
eth->h_proto = type;
config IEEE80211_CRYPT_TKIP
tristate "IEEE 802.11i TKIP encryption"
- depends on IEEE80211 && NET_RADIO
+ depends on IEEE80211
+ select WIRELESS_EXT
select CRYPTO
select CRYPTO_MICHAEL_MIC
select CRYPTO_ECB
return -1;
/* Copy the IV into the first 3 bytes of the key */
- memcpy(key, skb->data + hdr_len, 3);
+ skb_copy_from_linear_data_offset(skb, hdr_len, key, 3);
/* Copy rest of the WEP key (the secret part) */
memcpy(key + 3, wep->key, wep->key_len);
u16 fc = le16_to_cpu(hdr->frame_ctl);
skb->dev = ieee->dev;
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_pull(skb, ieee80211_get_hdrlen(fc));
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = __constant_htons(ETH_P_80211_RAW);
if (frag == 0) {
/* copy first fragment (including full headers) into
* beginning of the fragment cache skb */
- memcpy(skb_put(frag_skb, flen), skb->data, flen);
+ skb_copy_from_linear_data(skb, skb_put(frag_skb, flen), flen);
} else {
/* append frame payload to the end of the fragment
* cache skb */
- memcpy(skb_put(frag_skb, flen), skb->data + hdrlen,
- flen);
+ skb_copy_from_linear_data_offset(skb, hdrlen,
+ skb_put(frag_skb, flen), flen);
}
dev_kfree_skb_any(skb);
skb = NULL;
IEEE80211_FCTL_TODS) && skb->len >= ETH_HLEN + ETH_ALEN) {
/* Non-standard frame: get addr4 from its bogus location after
* the payload */
- memcpy(skb->data + ETH_ALEN,
- skb->data + skb->len - ETH_ALEN, ETH_ALEN);
+ skb_copy_to_linear_data_offset(skb, ETH_ALEN,
+ skb->data + skb->len - ETH_ALEN,
+ ETH_ALEN);
skb_trim(skb, skb->len - ETH_ALEN);
}
#endif
if (skb2 != NULL) {
/* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb2->mac.raw = skb2->nh.raw = skb2->data;
- /* skb2->nh.raw = skb2->data + ETH_HLEN; */
skb2->dev = dev;
+ skb2->protocol = __constant_htons(ETH_P_802_3);
+ skb_reset_mac_header(skb2);
+ skb_reset_network_header(skb2);
+ /* skb2->network_header += ETH_HLEN; */
dev_queue_xmit(skb2);
}
#endif
if (skb) {
skb->protocol = eth_type_trans(skb, dev);
memset(skb->cb, 0, sizeof(skb->cb));
- skb->dev = dev;
skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */
if (netif_rx(skb) == NET_RX_DROP) {
/* netif_rx always succeeds, but it might drop
struct iphdr *ip;
eth = (struct ethhdr *)skb->data;
- if (eth->h_proto != __constant_htons(ETH_P_IP))
+ if (eth->h_proto != htons(ETH_P_IP))
return 0;
- ip = skb->nh.iph;
+ ip = ip_hdr(skb);
switch (ip->tos & 0xfc) {
case 0x20:
return 2;
}
/* Save source and destination addresses */
- memcpy(dest, skb->data, ETH_ALEN);
- memcpy(src, skb->data + ETH_ALEN, ETH_ALEN);
+ skb_copy_from_linear_data(skb, dest, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, ETH_ALEN, src, ETH_ALEN);
if (host_encrypt || host_build_iv)
fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA |
snapped = 1;
ieee80211_copy_snap(skb_put(skb_new, SNAP_SIZE + sizeof(u16)),
ether_type);
- memcpy(skb_put(skb_new, skb->len), skb->data, skb->len);
+ skb_copy_from_linear_data(skb, skb_put(skb_new, skb->len), skb->len);
res = crypt->ops->encrypt_msdu(skb_new, hdr_len, crypt->priv);
if (res < 0) {
IEEE80211_ERROR("msdu encryption failed\n");
bytes -= SNAP_SIZE + sizeof(u16);
}
- memcpy(skb_put(skb_frag, bytes), skb->data, bytes);
+ skb_copy_from_linear_data(skb, skb_put(skb_frag, bytes), bytes);
/* Advance the SKB... */
skb_pull(skb, bytes);
loss packets.
See http://www.ntu.edu.sg/home5/ZHOU0022/papers/CPFu03a.pdf
+config TCP_CONG_YEAH
+ tristate "YeAH TCP"
+ depends on EXPERIMENTAL
+ default n
+ ---help---
+ YeAH-TCP is a sender-side high-speed enabled TCP congestion control
+ algorithm, which uses a mixed loss/delay approach to compute the
+ congestion window. It's design goals target high efficiency,
+ internal, RTT and Reno fairness, resilience to link loss while
+ keeping network elements load as low as possible.
+
+ For further details look here:
+ http://wil.cs.caltech.edu/pfldnet2007/paper/YeAH_TCP.pdf
+
+config TCP_CONG_ILLINOIS
+ tristate "TCP Illinois"
+ depends on EXPERIMENTAL
+ default n
+ ---help---
+ TCP-Illinois is a sender-side modificatio of TCP Reno for
+ high speed long delay links. It uses round-trip-time to
+ adjust the alpha and beta parameters to achieve a higher average
+ throughput and maintain fairness.
+
+ For further details see:
+ http://www.ews.uiuc.edu/~shaoliu/tcpillinois/index.html
+
choice
prompt "Default TCP congestion control"
default DEFAULT_CUBIC
obj-$(CONFIG_TCP_CONG_VENO) += tcp_veno.o
obj-$(CONFIG_TCP_CONG_SCALABLE) += tcp_scalable.o
obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o
+obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o
+obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o
obj-$(CONFIG_NETLABEL) += cipso_ipv4.o
obj-$(CONFIG_XFRM) += xfrm4_policy.o xfrm4_state.o xfrm4_input.o \
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/netfilter_ipv4.h>
+#include <linux/random.h>
#include <asm/uaccess.h>
#include <asm/system.h>
return err;
}
+u32 inet_ehash_secret __read_mostly;
+EXPORT_SYMBOL(inet_ehash_secret);
+
+/*
+ * inet_ehash_secret must be set exactly once
+ * Instead of using a dedicated spinlock, we (ab)use inetsw_lock
+ */
+void build_ehash_secret(void)
+{
+ u32 rnd;
+ do {
+ get_random_bytes(&rnd, sizeof(rnd));
+ } while (rnd == 0);
+ spin_lock_bh(&inetsw_lock);
+ if (!inet_ehash_secret)
+ inet_ehash_secret = rnd;
+ spin_unlock_bh(&inetsw_lock);
+}
+EXPORT_SYMBOL(build_ehash_secret);
+
/*
* Create an inet socket.
*/
int try_loading_module = 0;
int err;
+ if (sock->type != SOCK_RAW &&
+ sock->type != SOCK_DGRAM &&
+ !inet_ehash_secret)
+ build_ehash_secret();
+
sock->state = SS_UNCONNECTED;
/* Look for the requested type/protocol pair. */
case SIOCGSTAMP:
err = sock_get_timestamp(sk, (struct timeval __user *)arg);
break;
+ case SIOCGSTAMPNS:
+ err = sock_get_timestampns(sk, (struct timespec __user *)arg);
+ break;
case SIOCADDRT:
case SIOCDELRT:
case SIOCRTMSG:
if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
goto out;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
ihl = iph->ihl * 4;
if (ihl < sizeof(*iph))
goto out;
if (unlikely(!pskb_may_pull(skb, ihl)))
goto out;
- skb->h.raw = __skb_pull(skb, ihl);
- iph = skb->nh.iph;
+ __skb_pull(skb, ihl);
+ skb_reset_transport_header(skb);
+ iph = ip_hdr(skb);
proto = iph->protocol & (MAX_INET_PROTOS - 1);
err = -EPROTONOSUPPORT;
if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
goto out;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
ihl = iph->ihl * 4;
if (ihl < sizeof(*iph))
goto out;
if (unlikely(!pskb_may_pull(skb, ihl)))
goto out;
- skb->h.raw = __skb_pull(skb, ihl);
- iph = skb->nh.iph;
+ __skb_pull(skb, ihl);
+ skb_reset_transport_header(skb);
+ iph = ip_hdr(skb);
id = ntohs(iph->id);
proto = iph->protocol & (MAX_INET_PROTOS - 1);
segs = ERR_PTR(-EPROTONOSUPPORT);
skb = segs;
do {
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->id = htons(id++);
iph->tot_len = htons(skb->len - skb->mac_len);
iph->check = 0;
- iph->check = ip_fast_csum(skb->nh.raw, iph->ihl);
+ iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
} while ((skb = skb->next));
out:
return segs;
}
+unsigned long snmp_fold_field(void *mib[], int offt)
+{
+ unsigned long res = 0;
+ int i;
+
+ for_each_possible_cpu(i) {
+ res += *(((unsigned long *) per_cpu_ptr(mib[0], i)) + offt);
+ res += *(((unsigned long *) per_cpu_ptr(mib[1], i)) + offt);
+ }
+ return res;
+}
+EXPORT_SYMBOL_GPL(snmp_fold_field);
+
+int snmp_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
+{
+ BUG_ON(ptr == NULL);
+ ptr[0] = __alloc_percpu(mibsize);
+ if (!ptr[0])
+ goto err0;
+ ptr[1] = __alloc_percpu(mibsize);
+ if (!ptr[1])
+ goto err1;
+ return 0;
+err1:
+ free_percpu(ptr[0]);
+ ptr[0] = NULL;
+err0:
+ return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(snmp_mib_init);
+
+void snmp_mib_free(void *ptr[2])
+{
+ BUG_ON(ptr == NULL);
+ free_percpu(ptr[0]);
+ free_percpu(ptr[1]);
+ ptr[0] = ptr[1] = NULL;
+}
+EXPORT_SYMBOL_GPL(snmp_mib_free);
+
#ifdef CONFIG_IP_MULTICAST
static struct net_protocol igmp_protocol = {
.handler = igmp_rcv,
static int __init init_ipv4_mibs(void)
{
- net_statistics[0] = alloc_percpu(struct linux_mib);
- net_statistics[1] = alloc_percpu(struct linux_mib);
- ip_statistics[0] = alloc_percpu(struct ipstats_mib);
- ip_statistics[1] = alloc_percpu(struct ipstats_mib);
- icmp_statistics[0] = alloc_percpu(struct icmp_mib);
- icmp_statistics[1] = alloc_percpu(struct icmp_mib);
- tcp_statistics[0] = alloc_percpu(struct tcp_mib);
- tcp_statistics[1] = alloc_percpu(struct tcp_mib);
- udp_statistics[0] = alloc_percpu(struct udp_mib);
- udp_statistics[1] = alloc_percpu(struct udp_mib);
- udplite_statistics[0] = alloc_percpu(struct udp_mib);
- udplite_statistics[1] = alloc_percpu(struct udp_mib);
- if (!
- (net_statistics[0] && net_statistics[1] && ip_statistics[0]
- && ip_statistics[1] && tcp_statistics[0] && tcp_statistics[1]
- && udp_statistics[0] && udp_statistics[1]
- && udplite_statistics[0] && udplite_statistics[1] ) )
- return -ENOMEM;
-
- (void) tcp_mib_init();
+ if (snmp_mib_init((void **)net_statistics,
+ sizeof(struct linux_mib),
+ __alignof__(struct linux_mib)) < 0)
+ goto err_net_mib;
+ if (snmp_mib_init((void **)ip_statistics,
+ sizeof(struct ipstats_mib),
+ __alignof__(struct ipstats_mib)) < 0)
+ goto err_ip_mib;
+ if (snmp_mib_init((void **)icmp_statistics,
+ sizeof(struct icmp_mib),
+ __alignof__(struct icmp_mib)) < 0)
+ goto err_icmp_mib;
+ if (snmp_mib_init((void **)tcp_statistics,
+ sizeof(struct tcp_mib),
+ __alignof__(struct tcp_mib)) < 0)
+ goto err_tcp_mib;
+ if (snmp_mib_init((void **)udp_statistics,
+ sizeof(struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
+ goto err_udp_mib;
+ if (snmp_mib_init((void **)udplite_statistics,
+ sizeof(struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
+ goto err_udplite_mib;
+
+ tcp_mib_init();
return 0;
+
+err_udplite_mib:
+ snmp_mib_free((void **)udp_statistics);
+err_udp_mib:
+ snmp_mib_free((void **)tcp_statistics);
+err_tcp_mib:
+ snmp_mib_free((void **)icmp_statistics);
+err_icmp_mib:
+ snmp_mib_free((void **)ip_statistics);
+err_ip_mib:
+ snmp_mib_free((void **)net_statistics);
+err_net_mib:
+ return -ENOMEM;
}
static int ipv4_proc_init(void);
* Initialise per-cpu ipv4 mibs
*/
- if(init_ipv4_mibs())
+ if (init_ipv4_mibs())
printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n"); ;
ipv4_proc_init();
char buf[60];
} tmp_iph;
- top_iph = skb->nh.iph;
+ top_iph = ip_hdr(skb);
iph = &tmp_iph.iph;
iph->tos = top_iph->tos;
skb->ip_summed = CHECKSUM_NONE;
ah = (struct ip_auth_hdr*)skb->data;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
- ihl = skb->data - skb->nh.raw;
+ ihl = skb->data - skb_network_header(skb);
memcpy(work_buf, iph, ihl);
iph->ttl = 0;
}
}
((struct iphdr*)work_buf)->protocol = ah->nexthdr;
- skb->h.raw = memcpy(skb->nh.raw += ah_hlen, work_buf, ihl);
+ skb->network_header += ah_hlen;
+ memcpy(skb_network_header(skb), work_buf, ihl);
+ skb->transport_header = skb->network_header;
__skb_pull(skb, ah_hlen + ihl);
return 0;
struct ip_auth_hdr *ah = (struct ip_auth_hdr*)(skb->data+(iph->ihl<<2));
struct xfrm_state *x;
- if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
- skb->h.icmph->code != ICMP_FRAG_NEEDED)
+ if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
+ icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
return;
x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, ah->spi, IPPROTO_AH, AF_INET);
switch (IN_DEV_ARP_ANNOUNCE(in_dev)) {
default:
case 0: /* By default announce any local IP */
- if (skb && inet_addr_type(skb->nh.iph->saddr) == RTN_LOCAL)
- saddr = skb->nh.iph->saddr;
+ if (skb && inet_addr_type(ip_hdr(skb)->saddr) == RTN_LOCAL)
+ saddr = ip_hdr(skb)->saddr;
break;
case 1: /* Restrict announcements of saddr in same subnet */
if (!skb)
break;
- saddr = skb->nh.iph->saddr;
+ saddr = ip_hdr(skb)->saddr;
if (inet_addr_type(saddr) == RTN_LOCAL) {
/* saddr should be known to target */
if (inet_addr_onlink(in_dev, target, saddr))
return NULL;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
arp = (struct arphdr *) skb_put(skb,sizeof(struct arphdr) + 2*(dev->addr_len+4));
skb->dev = dev;
skb->protocol = htons(ETH_P_ARP);
if (in_dev == NULL)
goto out;
- arp = skb->nh.arph;
+ arp = arp_hdr(skb);
switch (dev_type) {
default:
(2 * sizeof(u32)))))
goto freeskb;
- arp = skb->nh.arph;
+ arp = arp_hdr(skb);
if (arp->ar_hln != dev->addr_len ||
dev->flags & IFF_NOARP ||
skb->pkt_type == PACKET_OTHERHOST ||
goto out;
}
- switch(cmd) {
+ switch (cmd) {
case SIOCDARP:
err = arp_req_delete(&r, dev);
break;
/* ------------------------------------------------------------------------ */
-static struct seq_operations arp_seq_ops = {
+static const struct seq_operations arp_seq_ops = {
.start = arp_seq_start,
.next = neigh_seq_next,
.stop = neigh_seq_stop,
u16 cat_low;
u16 cat_high;
- for(net_iter = 0; net_iter < net_cat_len; net_iter += 4) {
+ for (net_iter = 0; net_iter < net_cat_len; net_iter += 4) {
cat_high = ntohs(*((__be16 *)&net_cat[net_iter]));
if ((net_iter + 4) <= net_cat_len)
cat_low = ntohs(*((__be16 *)&net_cat[net_iter + 2]));
*/
void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway)
{
- if (skb->nh.iph->protocol == IPPROTO_ICMP || error != -EACCES)
+ if (ip_hdr(skb)->protocol == IPPROTO_ICMP || error != -EACCES)
return;
if (gateway)
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
#include <linux/init.h>
#include <linux/notifier.h>
#include <linux/inetdevice.h>
#include <net/ip.h>
#include <net/route.h>
#include <net/ip_fib.h>
-#include <net/netlink.h>
+#include <net/rtnetlink.h>
struct ipv4_devconf ipv4_devconf = {
.accept_redirects = 1,
dev_load(ifr.ifr_name);
#endif
- switch(cmd) {
+ switch (cmd) {
case SIOCGIFADDR: /* Get interface address */
case SIOCGIFBRDADDR: /* Get the broadcast address */
case SIOCGIFDSTADDR: /* Get the destination address */
if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS)
goto done;
- switch(cmd) {
+ switch (cmd) {
case SIOCGIFADDR: /* Get interface address */
sin->sin_addr.s_addr = ifa->ifa_local;
goto rarok;
int s_ip_idx, s_idx = cb->args[0];
s_ip_idx = ip_idx = cb->args[1];
- read_lock(&dev_base_lock);
for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
if (idx < s_idx)
continue;
if (idx > s_idx)
s_ip_idx = 0;
- rcu_read_lock();
- if ((in_dev = __in_dev_get_rcu(dev)) == NULL) {
- rcu_read_unlock();
+ if ((in_dev = __in_dev_get_rtnl(dev)) == NULL)
continue;
- }
for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
ifa = ifa->ifa_next, ip_idx++) {
continue;
if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq,
- RTM_NEWADDR, NLM_F_MULTI) <= 0) {
- rcu_read_unlock();
+ RTM_NEWADDR, NLM_F_MULTI) <= 0)
goto done;
- }
}
- rcu_read_unlock();
}
done:
- read_unlock(&dev_base_lock);
cb->args[0] = idx;
cb->args[1] = ip_idx;
rtnl_set_sk_err(RTNLGRP_IPV4_IFADDR, err);
}
-static struct rtnetlink_link inet_rtnetlink_table[RTM_NR_MSGTYPES] = {
- [RTM_NEWADDR - RTM_BASE] = { .doit = inet_rtm_newaddr, },
- [RTM_DELADDR - RTM_BASE] = { .doit = inet_rtm_deladdr, },
- [RTM_GETADDR - RTM_BASE] = { .dumpit = inet_dump_ifaddr, },
- [RTM_NEWROUTE - RTM_BASE] = { .doit = inet_rtm_newroute, },
- [RTM_DELROUTE - RTM_BASE] = { .doit = inet_rtm_delroute, },
- [RTM_GETROUTE - RTM_BASE] = { .doit = inet_rtm_getroute,
- .dumpit = inet_dump_fib, },
-#ifdef CONFIG_IP_MULTIPLE_TABLES
- [RTM_GETRULE - RTM_BASE] = { .dumpit = fib4_rules_dump, },
-#endif
-};
-
#ifdef CONFIG_SYSCTL
void inet_forward_change(void)
{
register_gifconf(PF_INET, inet_gifconf);
register_netdevice_notifier(&ip_netdev_notifier);
- rtnetlink_links[PF_INET] = inet_rtnetlink_table;
+
+ rtnl_register(PF_INET, RTM_NEWADDR, inet_rtm_newaddr, NULL);
+ rtnl_register(PF_INET, RTM_DELADDR, inet_rtm_deladdr, NULL);
+ rtnl_register(PF_INET, RTM_GETADDR, NULL, inet_dump_ifaddr);
#ifdef CONFIG_SYSCTL
devinet_sysctl.sysctl_header =
register_sysctl_table(devinet_sysctl.devinet_root_dir);
struct blkcipher_desc desc;
struct esp_data *esp;
struct sk_buff *trailer;
+ u8 *tail;
int blksize;
int clen;
int alen;
int nfrags;
/* Strip IP+ESP header. */
- __skb_pull(skb, skb->h.raw - skb->data);
+ __skb_pull(skb, skb_transport_offset(skb));
/* Now skb is pure payload to encrypt */
err = -ENOMEM;
goto error;
/* Fill padding... */
+ tail = skb_tail_pointer(trailer);
do {
int i;
for (i=0; i<clen-skb->len - 2; i++)
- *(u8*)(trailer->tail + i) = i+1;
+ tail[i] = i + 1;
} while (0);
- *(u8*)(trailer->tail + clen-skb->len - 2) = (clen - skb->len)-2;
+ tail[clen - skb->len - 2] = (clen - skb->len) - 2;
pskb_put(skb, trailer, clen - skb->len);
- __skb_push(skb, skb->data - skb->nh.raw);
- top_iph = skb->nh.iph;
- esph = (struct ip_esp_hdr *)(skb->nh.raw + top_iph->ihl*4);
+ __skb_push(skb, skb->data - skb_network_header(skb));
+ top_iph = ip_hdr(skb);
+ esph = (struct ip_esp_hdr *)(skb_network_header(skb) +
+ top_iph->ihl * 4);
top_iph->tot_len = htons(skb->len + alen);
- *(u8*)(trailer->tail - 1) = top_iph->protocol;
+ *(skb_tail_pointer(trailer) - 1) = top_iph->protocol;
/* this is non-NULL only with UDP Encapsulation */
if (x->encap) {
/* ... check padding bits here. Silly. :-) */
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
ihl = iph->ihl * 4;
if (x->encap) {
struct xfrm_encap_tmpl *encap = x->encap;
- struct udphdr *uh = (void *)(skb->nh.raw + ihl);
+ struct udphdr *uh = (void *)(skb_network_header(skb) + ihl);
/*
* 1) if the NAT-T peer's IP or port changed then
iph->protocol = nexthdr[1];
pskb_trim(skb, skb->len - alen - padlen - 2);
- skb->h.raw = __skb_pull(skb, sizeof(*esph) + esp->conf.ivlen) - ihl;
+ __skb_pull(skb, sizeof(*esph) + esp->conf.ivlen);
+ skb_set_transport_header(skb, -ihl);
return 0;
return -EINVAL;
}
-static u32 esp4_get_max_size(struct xfrm_state *x, int mtu)
+static u32 esp4_get_mtu(struct xfrm_state *x, int mtu)
{
struct esp_data *esp = x->data;
u32 blksize = ALIGN(crypto_blkcipher_blocksize(esp->conf.tfm), 4);
- int enclen = 0;
+ u32 align = max_t(u32, blksize, esp->conf.padlen);
+ u32 rem;
+
+ mtu -= x->props.header_len + esp->auth.icv_trunc_len;
+ rem = mtu & (align - 1);
+ mtu &= ~(align - 1);
switch (x->props.mode) {
case XFRM_MODE_TUNNEL:
- mtu = ALIGN(mtu +2, blksize);
break;
default:
case XFRM_MODE_TRANSPORT:
/* The worst case */
- mtu = ALIGN(mtu + 2, 4) + blksize - 4;
+ mtu -= blksize - 4;
+ mtu += min_t(u32, blksize - 4, rem);
break;
case XFRM_MODE_BEET:
/* The worst case. */
- enclen = IPV4_BEET_PHMAXLEN;
- mtu = ALIGN(mtu + enclen + 2, blksize);
+ mtu += min_t(u32, IPV4_BEET_PHMAXLEN, rem);
break;
}
- if (esp->conf.padlen)
- mtu = ALIGN(mtu, esp->conf.padlen);
-
- return mtu + x->props.header_len + esp->auth.icv_trunc_len - enclen;
+ return mtu - 2;
}
static void esp4_err(struct sk_buff *skb, u32 info)
struct ip_esp_hdr *esph = (struct ip_esp_hdr*)(skb->data+(iph->ihl<<2));
struct xfrm_state *x;
- if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
- skb->h.icmph->code != ICMP_FRAG_NEEDED)
+ if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
+ icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
return;
x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, esph->spi, IPPROTO_ESP, AF_INET);
{
struct esp_data *esp = NULL;
struct crypto_blkcipher *tfm;
+ u32 align;
/* null auth and encryption can have zero length keys */
if (x->aalg) {
x->props.header_len = sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
if (x->props.mode == XFRM_MODE_TUNNEL)
x->props.header_len += sizeof(struct iphdr);
+ else if (x->props.mode == XFRM_MODE_BEET)
+ x->props.header_len += IPV4_BEET_PHMAXLEN;
if (x->encap) {
struct xfrm_encap_tmpl *encap = x->encap;
}
}
x->data = esp;
- x->props.trailer_len = esp4_get_max_size(x, 0) - x->props.header_len;
+ align = ALIGN(crypto_blkcipher_blocksize(esp->conf.tfm), 4);
+ if (esp->conf.padlen)
+ align = max_t(u32, align, esp->conf.padlen);
+ x->props.trailer_len = align + 1 + esp->auth.icv_trunc_len;
return 0;
error:
.proto = IPPROTO_ESP,
.init_state = esp_init_state,
.destructor = esp_destroy,
- .get_max_size = esp4_get_max_size,
+ .get_mtu = esp4_get_mtu,
.input = esp_input,
.output = esp_output
};
#include <linux/if_addr.h>
#include <linux/if_arp.h>
#include <linux/skbuff.h>
-#include <linux/netlink.h>
#include <linux/init.h>
#include <linux/list.h>
#include <net/icmp.h>
#include <net/arp.h>
#include <net/ip_fib.h>
+#include <net/rtnetlink.h>
#define FFprint(a...) printk(KERN_DEBUG a)
return err;
}
-int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
{
struct fib_config cfg;
struct fib_table *tb;
return err;
}
-int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
{
struct fib_config cfg;
struct fib_table *tb;
return err;
}
-int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
+static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
{
unsigned int h, s_h;
unsigned int e = 0, s_e;
.nl_u = { .ip4_u = { .daddr = frn->fl_addr,
.tos = frn->fl_tos,
.scope = frn->fl_scope } } };
+
+#ifdef CONFIG_IP_MULTIPLE_TABLES
+ res.r = NULL;
+#endif
+
+ frn->err = -ENOENT;
if (tb) {
local_bh_disable();
frn->nh_sel = res.nh_sel;
frn->type = res.type;
frn->scope = res.scope;
+ fib_res_put(&res);
}
local_bh_enable();
}
struct fib_table *tb;
skb = skb_dequeue(&sk->sk_receive_queue);
- nlh = (struct nlmsghdr *)skb->data;
+ if (skb == NULL)
+ return;
+
+ nlh = nlmsg_hdr(skb);
if (skb->len < NLMSG_SPACE(0) || skb->len < nlh->nlmsg_len ||
nlh->nlmsg_len < NLMSG_LENGTH(sizeof(*frn))) {
kfree_skb(skb);
nl_fib_lookup(frn, tb);
- pid = nlh->nlmsg_pid; /*pid of sending process */
+ pid = NETLINK_CB(skb).pid; /* pid of sending process */
NETLINK_CB(skb).pid = 0; /* from kernel */
NETLINK_CB(skb).dst_group = 0; /* unicast */
netlink_unicast(sk, skb, pid, MSG_DONTWAIT);
static void nl_fib_lookup_init(void)
{
- netlink_kernel_create(NETLINK_FIB_LOOKUP, 0, nl_fib_input, THIS_MODULE);
+ netlink_kernel_create(NETLINK_FIB_LOOKUP, 0, nl_fib_input, NULL,
+ THIS_MODULE);
}
static void fib_disable_ip(struct net_device *dev, int force)
register_netdevice_notifier(&fib_netdev_notifier);
register_inetaddr_notifier(&fib_inetaddr_notifier);
nl_fib_lookup_init();
+
+ rtnl_register(PF_INET, RTM_NEWROUTE, inet_rtm_newroute, NULL);
+ rtnl_register(PF_INET, RTM_DELROUTE, inet_rtm_delroute, NULL);
+ rtnl_register(PF_INET, RTM_GETROUTE, NULL, inet_dump_fib);
}
EXPORT_SYMBOL(inet_addr_type);
return 0;
}
-static struct seq_operations fib_seq_ops = {
+static const struct seq_operations fib_seq_ops = {
.start = fib_seq_start,
.next = fib_seq_next,
.stop = fib_seq_stop,
return -ENOBUFS;
}
-int fib4_rules_dump(struct sk_buff *skb, struct netlink_callback *cb)
-{
- return fib_rules_dump(skb, cb, AF_INET);
-}
-
static u32 fib4_rule_default_pref(void)
{
struct list_head *pos;
+ nla_total_size(4); /* flow */
}
+static void fib4_rule_flush_cache(void)
+{
+ rt_cache_flush(-1);
+}
+
static struct fib_rules_ops fib4_rules_ops = {
.family = AF_INET,
.rule_size = sizeof(struct fib4_rule),
.fill = fib4_rule_fill,
.default_pref = fib4_rule_default_pref,
.nlmsg_payload = fib4_rule_nlmsg_payload,
+ .flush_cache = fib4_rule_flush_cache,
.nlgroup = RTNLGRP_IPV4_RULE,
.policy = fib4_rule_policy,
.rules_list = &fib4_rules,
default:
printk(KERN_DEBUG "impossible 102\n");
return -EINVAL;
- };
+ }
}
return err;
}
* Patrick McHardy <kaber@trash.net>
*/
-#define VERSION "0.407"
+#define VERSION "0.408"
#include <asm/uaccess.h>
#include <asm/system.h>
static int halve_threshold = 25;
static int inflate_threshold = 50;
-static int halve_threshold_root = 15;
-static int inflate_threshold_root = 25;
+static int halve_threshold_root = 8;
+static int inflate_threshold_root = 15;
static void __alias_free_mem(struct rcu_head *head)
static inline void tnode_free(struct tnode *tn)
{
- if(IS_LEAF(tn)) {
+ if (IS_LEAF(tn)) {
struct leaf *l = (struct leaf *) tn;
call_rcu_bh(&l->rcu, __leaf_free_rcu);
- }
- else
+ } else
call_rcu(&tn->rcu, __tnode_free_rcu);
}
struct tnode *old_tn;
int inflate_threshold_use;
int halve_threshold_use;
+ int max_resize;
if (!tn)
return NULL;
/* Keep root node larger */
- if(!tn->parent)
+ if (!tn->parent)
inflate_threshold_use = inflate_threshold_root;
else
inflate_threshold_use = inflate_threshold;
err = 0;
- while ((tn->full_children > 0 &&
+ max_resize = 10;
+ while ((tn->full_children > 0 && max_resize-- &&
50 * (tn->full_children + tnode_child_length(tn) - tn->empty_children) >=
inflate_threshold_use * tnode_child_length(tn))) {
}
}
+ if (max_resize < 0) {
+ if (!tn->parent)
+ printk(KERN_WARNING "Fix inflate_threshold_root. Now=%d size=%d bits\n",
+ inflate_threshold_root, tn->bits);
+ else
+ printk(KERN_WARNING "Fix inflate_threshold. Now=%d size=%d bits\n",
+ inflate_threshold, tn->bits);
+ }
+
check_tnode(tn);
/*
/* Keep root node larger */
- if(!tn->parent)
+ if (!tn->parent)
halve_threshold_use = halve_threshold_root;
else
halve_threshold_use = halve_threshold;
err = 0;
- while (tn->bits > 1 &&
+ max_resize = 10;
+ while (tn->bits > 1 && max_resize-- &&
100 * (tnode_child_length(tn) - tn->empty_children) <
halve_threshold_use * tnode_child_length(tn)) {
}
}
+ if (max_resize < 0) {
+ if (!tn->parent)
+ printk(KERN_WARNING "Fix halve_threshold_root. Now=%d size=%d bits\n",
+ halve_threshold_root, tn->bits);
+ else
+ printk(KERN_WARNING "Fix halve_threshold. Now=%d size=%d bits\n",
+ halve_threshold, tn->bits);
+ }
/* Only one child remains */
if (tn->empty_children == tnode_child_length(tn) - 1)
{
struct node *n ;
- if(!t)
+ if (!t)
return NULL;
n = rcu_dereference(t->trie);
- if(!iter)
+ if (!iter)
return NULL;
if (n) {
int i;
s->tnodes++;
- if(tn->bits < MAX_STAT_DEPTH)
+ if (tn->bits < MAX_STAT_DEPTH)
s->nodesizes[tn->bits]++;
for (i = 0; i < (1<<tn->bits); i++)
{
static char buf[32];
- switch(s) {
+ switch (s) {
case RT_SCOPE_UNIVERSE: return "universe";
case RT_SCOPE_SITE: return "site";
case RT_SCOPE_LINK: return "link";
return 0;
}
-static struct seq_operations fib_trie_seq_ops = {
+static const struct seq_operations fib_trie_seq_ops = {
.start = fib_trie_seq_start,
.next = fib_trie_seq_next,
.stop = fib_trie_seq_stop,
return 0;
}
-static struct seq_operations fib_route_seq_ops = {
+static const struct seq_operations fib_route_seq_ops = {
.start = fib_trie_seq_start,
.next = fib_trie_seq_next,
.stop = fib_trie_seq_stop,
ipc, rt, MSG_DONTWAIT) < 0)
ip_flush_pending_frames(icmp_socket->sk);
else if ((skb = skb_peek(&icmp_socket->sk->sk_write_queue)) != NULL) {
- struct icmphdr *icmph = skb->h.icmph;
+ struct icmphdr *icmph = icmp_hdr(skb);
__wsum csum = 0;
struct sk_buff *skb1;
icmp_param->data.icmph.checksum = 0;
icmp_out_count(icmp_param->data.icmph.type);
- inet->tos = skb->nh.iph->tos;
+ inet->tos = ip_hdr(skb)->tos;
daddr = ipc.addr = rt->rt_src;
ipc.opt = NULL;
if (icmp_param->replyopts.optlen) {
struct flowi fl = { .nl_u = { .ip4_u =
{ .daddr = daddr,
.saddr = rt->rt_spec_dst,
- .tos = RT_TOS(skb->nh.iph->tos) } },
+ .tos = RT_TOS(ip_hdr(skb)->tos) } },
.proto = IPPROTO_ICMP };
security_skb_classify_flow(skb, &fl);
if (ip_route_output_key(&rt, &fl))
* Check this, icmp_send is called from the most obscure devices
* sometimes.
*/
- iph = skb_in->nh.iph;
+ iph = ip_hdr(skb_in);
- if ((u8 *)iph < skb_in->head || (u8 *)(iph + 1) > skb_in->tail)
+ if ((u8 *)iph < skb_in->head ||
+ (skb_in->network_header + sizeof(*iph)) > skb_in->tail)
goto out;
/*
u8 _inner_type, *itp;
itp = skb_header_pointer(skb_in,
- skb_in->nh.raw +
+ skb_network_header(skb_in) +
(iph->ihl << 2) +
offsetof(struct icmphdr,
type) -
icmp_param.data.icmph.un.gateway = info;
icmp_param.data.icmph.checksum = 0;
icmp_param.skb = skb_in;
- icmp_param.offset = skb_in->nh.raw - skb_in->data;
+ icmp_param.offset = skb_network_offset(skb_in);
icmp_out_count(icmp_param.data.icmph.type);
inet_sk(icmp_socket->sk)->tos = tos;
ipc.addr = iph->saddr;
if (!pskb_may_pull(skb, sizeof(struct iphdr)))
goto out_err;
- icmph = skb->h.icmph;
+ icmph = icmp_hdr(skb);
iph = (struct iphdr *)skb->data;
if (iph->ihl < 5) /* Mangled header, drop. */
printk(KERN_WARNING "%u.%u.%u.%u sent an invalid ICMP "
"type %u, code %u "
"error to a broadcast: %u.%u.%u.%u on %s\n",
- NIPQUAD(skb->nh.iph->saddr),
+ NIPQUAD(ip_hdr(skb)->saddr),
icmph->type, icmph->code,
NIPQUAD(iph->daddr),
skb->dev->name);
iph = (struct iphdr *)skb->data;
- switch (skb->h.icmph->code & 7) {
+ switch (icmp_hdr(skb)->code & 7) {
case ICMP_REDIR_NET:
case ICMP_REDIR_NETTOS:
/*
*/
case ICMP_REDIR_HOST:
case ICMP_REDIR_HOSTTOS:
- ip_rt_redirect(skb->nh.iph->saddr, iph->daddr,
- skb->h.icmph->un.gateway,
+ ip_rt_redirect(ip_hdr(skb)->saddr, iph->daddr,
+ icmp_hdr(skb)->un.gateway,
iph->saddr, skb->dev);
break;
}
if (!sysctl_icmp_echo_ignore_all) {
struct icmp_bxm icmp_param;
- icmp_param.data.icmph = *skb->h.icmph;
+ icmp_param.data.icmph = *icmp_hdr(skb);
icmp_param.data.icmph.type = ICMP_ECHOREPLY;
icmp_param.skb = skb;
icmp_param.offset = 0;
icmp_param.data.times[2] = icmp_param.data.times[1];
if (skb_copy_bits(skb, 0, &icmp_param.data.times[0], 4))
BUG();
- icmp_param.data.icmph = *skb->h.icmph;
+ icmp_param.data.icmph = *icmp_hdr(skb);
icmp_param.data.icmph.type = ICMP_TIMESTAMPREPLY;
icmp_param.data.icmph.code = 0;
icmp_param.skb = skb;
if (!pskb_pull(skb, sizeof(struct icmphdr)))
goto error;
- icmph = skb->h.icmph;
+ icmph = icmp_hdr(skb);
/*
* 18 is the highest 'known' ICMP type. Anything else is a mystery
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.iph = pip =(struct iphdr *)skb_put(skb, sizeof(struct iphdr)+4);
+ skb_reset_network_header(skb);
+ pip = ip_hdr(skb);
+ skb_put(skb, sizeof(struct iphdr) + 4);
pip->version = 4;
pip->ihl = (sizeof(struct iphdr)+4)>>2;
((u8*)&pip[1])[2] = 0;
((u8*)&pip[1])[3] = 0;
- pig =(struct igmpv3_report *)skb_put(skb, sizeof(*pig));
- skb->h.igmph = (struct igmphdr *)pig;
+ skb->transport_header = skb->network_header + sizeof(struct iphdr) + 4;
+ skb_put(skb, sizeof(*pig));
+ pig = igmpv3_report_hdr(skb);
pig->type = IGMPV3_HOST_MEMBERSHIP_REPORT;
pig->resv1 = 0;
pig->csum = 0;
static int igmpv3_sendpack(struct sk_buff *skb)
{
- struct iphdr *pip = skb->nh.iph;
- struct igmphdr *pig = skb->h.igmph;
- int iplen, igmplen;
+ struct iphdr *pip = ip_hdr(skb);
+ struct igmphdr *pig = igmp_hdr(skb);
+ const int iplen = skb->tail - skb->network_header;
+ const int igmplen = skb->tail - skb->transport_header;
- iplen = skb->tail - (unsigned char *)skb->nh.iph;
pip->tot_len = htons(iplen);
ip_send_check(pip);
-
- igmplen = skb->tail - (unsigned char *)skb->h.igmph;
- pig->csum = ip_compute_csum((void *)skb->h.igmph, igmplen);
+ pig->csum = ip_compute_csum(igmp_hdr(skb), igmplen);
return NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
pgr->grec_auxwords = 0;
pgr->grec_nsrcs = 0;
pgr->grec_mca = pmc->multiaddr;
- pih = (struct igmpv3_report *)skb->h.igmph;
+ pih = igmpv3_report_hdr(skb);
pih->ngrec = htons(ntohs(pih->ngrec)+1);
*ppgr = pgr;
return skb;
if (!*psf_list)
goto empty_source;
- pih = skb ? (struct igmpv3_report *)skb->h.igmph : NULL;
+ pih = skb ? igmpv3_report_hdr(skb) : NULL;
/* EX and TO_EX get a fresh packet, if needed */
if (truncate) {
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.iph = iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr)+4);
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
+ skb_put(skb, sizeof(struct iphdr) + 4);
iph->version = 4;
iph->ihl = (sizeof(struct iphdr)+4)>>2;
static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
int len)
{
- struct igmphdr *ih = skb->h.igmph;
- struct igmpv3_query *ih3 = (struct igmpv3_query *)ih;
+ struct igmphdr *ih = igmp_hdr(skb);
+ struct igmpv3_query *ih3 = igmpv3_query_hdr(skb);
struct ip_mc_list *im;
__be32 group = ih->group;
int max_delay;
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
return;
- ih3 = (struct igmpv3_query *) skb->h.raw;
+ ih3 = igmpv3_query_hdr(skb);
if (ih3->nsrcs) {
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)
+ ntohs(ih3->nsrcs)*sizeof(__be32)))
return;
- ih3 = (struct igmpv3_query *) skb->h.raw;
+ ih3 = igmpv3_query_hdr(skb);
}
max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
goto drop;
}
- ih = skb->h.igmph;
+ ih = igmp_hdr(skb);
switch (ih->type) {
case IGMP_HOST_MEMBERSHIP_QUERY:
igmp_heard_query(in_dev, skb, len);
return 0;
}
-static struct seq_operations igmp_mc_seq_ops = {
+static const struct seq_operations igmp_mc_seq_ops = {
.start = igmp_mc_seq_start,
.next = igmp_mc_seq_next,
.stop = igmp_mc_seq_stop,
return 0;
}
-static struct seq_operations igmp_mcf_seq_ops = {
+static const struct seq_operations igmp_mcf_seq_ops = {
.start = igmp_mcf_seq_start,
.next = igmp_mcf_seq_next,
.stop = igmp_mcf_seq_stop,
#include <net/inet_hashtables.h>
#include <net/inet_timewait_sock.h>
#include <net/inet6_hashtables.h>
+#include <net/netlink.h>
#include <linux/inet.h>
#include <linux/stddef.h>
struct nlmsghdr *nlh;
void *info = NULL;
struct inet_diag_meminfo *minfo = NULL;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
const struct inet_diag_handler *handler;
handler = inet_diag_table[unlh->nlmsg_type];
icsk->icsk_ca_ops && icsk->icsk_ca_ops->get_info)
icsk->icsk_ca_ops->get_info(sk, ext, skb);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -EMSGSIZE;
}
{
long tmo;
struct inet_diag_msg *r;
- const unsigned char *previous_tail = skb->tail;
+ const unsigned char *previous_tail = skb_tail_pointer(skb);
struct nlmsghdr *nlh = NLMSG_PUT(skb, pid, seq,
unlh->nlmsg_type, sizeof(*r));
&tw6->tw_v6_daddr);
}
#endif
- nlh->nlmsg_len = skb->tail - previous_tail;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - previous_tail;
return skb->len;
nlmsg_failure:
- skb_trim(skb, previous_tail - skb->data);
+ nlmsg_trim(skb, previous_tail);
return -EMSGSIZE;
}
{
const struct inet_request_sock *ireq = inet_rsk(req);
struct inet_sock *inet = inet_sk(sk);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct inet_diag_msg *r;
struct nlmsghdr *nlh;
long tmo;
&inet6_rsk(req)->rmt_addr);
}
#endif
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
return skb->len;
}
-static inline int inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+static int inet_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
- if (!(nlh->nlmsg_flags&NLM_F_REQUEST))
- return 0;
+ int hdrlen = sizeof(struct inet_diag_req);
- if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX)
- goto err_inval;
+ if (nlh->nlmsg_type >= INET_DIAG_GETSOCK_MAX ||
+ nlmsg_len(nlh) < hdrlen)
+ return -EINVAL;
if (inet_diag_table[nlh->nlmsg_type] == NULL)
return -ENOENT;
- if (NLMSG_LENGTH(sizeof(struct inet_diag_req)) > skb->len)
- goto err_inval;
-
- if (nlh->nlmsg_flags&NLM_F_DUMP) {
- if (nlh->nlmsg_len >
- (4 + NLMSG_SPACE(sizeof(struct inet_diag_req)))) {
- struct rtattr *rta = (void *)(NLMSG_DATA(nlh) +
- sizeof(struct inet_diag_req));
- if (rta->rta_type != INET_DIAG_REQ_BYTECODE ||
- rta->rta_len < 8 ||
- rta->rta_len >
- (nlh->nlmsg_len -
- NLMSG_SPACE(sizeof(struct inet_diag_req))))
- goto err_inval;
- if (inet_diag_bc_audit(RTA_DATA(rta), RTA_PAYLOAD(rta)))
- goto err_inval;
+ if (nlh->nlmsg_flags & NLM_F_DUMP) {
+ if (nlmsg_attrlen(nlh, hdrlen)) {
+ struct nlattr *attr;
+
+ attr = nlmsg_find_attr(nlh, hdrlen,
+ INET_DIAG_REQ_BYTECODE);
+ if (attr == NULL ||
+ nla_len(attr) < sizeof(struct inet_diag_bc_op) ||
+ inet_diag_bc_audit(nla_data(attr), nla_len(attr)))
+ return -EINVAL;
}
+
return netlink_dump_start(idiagnl, skb, nlh,
inet_diag_dump, NULL);
- } else
- return inet_diag_get_exact(skb, nlh);
-
-err_inval:
- return -EINVAL;
-}
-
-
-static inline void inet_diag_rcv_skb(struct sk_buff *skb)
-{
- if (skb->len >= NLMSG_SPACE(0)) {
- int err;
- struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
-
- if (nlh->nlmsg_len < sizeof(*nlh) ||
- skb->len < nlh->nlmsg_len)
- return;
- err = inet_diag_rcv_msg(skb, nlh);
- if (err || nlh->nlmsg_flags & NLM_F_ACK)
- netlink_ack(skb, nlh, err);
}
+
+ return inet_diag_get_exact(skb, nlh);
}
static void inet_diag_rcv(struct sock *sk, int len)
{
- struct sk_buff *skb;
- unsigned int qlen = skb_queue_len(&sk->sk_receive_queue);
+ unsigned int qlen = 0;
- while (qlen-- && (skb = skb_dequeue(&sk->sk_receive_queue))) {
- inet_diag_rcv_skb(skb);
- kfree_skb(skb);
- }
+ do {
+ netlink_run_queue(sk, &qlen, &inet_diag_rcv_msg);
+ } while (qlen);
}
static DEFINE_SPINLOCK(inet_diag_register_lock);
goto out;
idiagnl = netlink_kernel_create(NETLINK_INET_DIAG, 0, inet_diag_rcv,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (idiagnl == NULL)
goto out_free_table;
err = 0;
static int peer_total;
/* Exported for sysctl_net_ipv4. */
-int inet_peer_threshold = 65536 + 128; /* start to throw entries more
+int inet_peer_threshold __read_mostly = 65536 + 128; /* start to throw entries more
* aggressively at this stage */
-int inet_peer_minttl = 120 * HZ; /* TTL under high load: 120 sec */
-int inet_peer_maxttl = 10 * 60 * HZ; /* usual time to live: 10 min */
+int inet_peer_minttl __read_mostly = 120 * HZ; /* TTL under high load: 120 sec */
+int inet_peer_maxttl __read_mostly = 10 * 60 * HZ; /* usual time to live: 10 min */
+int inet_peer_gc_mintime __read_mostly = 10 * HZ;
+int inet_peer_gc_maxtime __read_mostly = 120 * HZ;
static struct inet_peer *inet_peer_unused_head;
static struct inet_peer **inet_peer_unused_tailp = &inet_peer_unused_head;
static void peer_check_expire(unsigned long dummy);
static DEFINE_TIMER(peer_periodic_timer, peer_check_expire, 0, 0);
-/* Exported for sysctl_net_ipv4. */
-int inet_peer_gc_mintime = 10 * HZ,
- inet_peer_gc_maxtime = 120 * HZ;
/* Called from ip_output.c:ip_init */
void __init inet_initpeers(void)
spin_unlock_bh(&inet_peer_unused_lock);
}
-/* Called with local BH disabled and the pool lock held. */
-#define lookup(daddr) \
+/*
+ * Called with local BH disabled and the pool lock held.
+ * _stack is known to be NULL or not at compile time,
+ * so compiler will optimize the if (_stack) tests.
+ */
+#define lookup(_daddr,_stack) \
({ \
struct inet_peer *u, **v; \
- stackptr = stack; \
- *stackptr++ = &peer_root; \
+ if (_stack) { \
+ stackptr = _stack; \
+ *stackptr++ = &peer_root; \
+ } \
for (u = peer_root; u != peer_avl_empty; ) { \
- if (daddr == u->v4daddr) \
+ if (_daddr == u->v4daddr) \
break; \
- if ((__force __u32)daddr < (__force __u32)u->v4daddr) \
+ if ((__force __u32)_daddr < (__force __u32)u->v4daddr) \
v = &u->avl_left; \
else \
v = &u->avl_right; \
- *stackptr++ = v; \
+ if (_stack) \
+ *stackptr++ = v; \
u = *v; \
} \
u; \
if (atomic_read(&p->refcnt) == 1) {
struct inet_peer **stack[PEER_MAXDEPTH];
struct inet_peer ***stackptr, ***delp;
- if (lookup(p->v4daddr) != p)
+ if (lookup(p->v4daddr, stack) != p)
BUG();
delp = stackptr - 1; /* *delp[0] == p */
if (p->avl_left == peer_avl_empty) {
/* Look up for the address quickly. */
read_lock_bh(&peer_pool_lock);
- p = lookup(daddr);
+ p = lookup(daddr, NULL);
if (p != peer_avl_empty)
atomic_inc(&p->refcnt);
read_unlock_bh(&peer_pool_lock);
write_lock_bh(&peer_pool_lock);
/* Check if an entry has suddenly appeared. */
- p = lookup(daddr);
+ p = lookup(daddr, stack);
if (p != peer_avl_empty)
goto out_free;
if (skb->pkt_type != PACKET_HOST)
goto drop;
- skb->ip_summed = CHECKSUM_NONE;
+ skb_forward_csum(skb);
/*
* According to the RFC, we must first decrease the TTL field. If
* that reaches zero, we must reply an ICMP control message telling
* that the packet's lifetime expired.
*/
- if (skb->nh.iph->ttl <= 1)
+ if (ip_hdr(skb)->ttl <= 1)
goto too_many_hops;
if (!xfrm4_route_forward(skb))
if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
goto sr_failed;
+ if (unlikely(skb->len > dst_mtu(&rt->u.dst) &&
+ (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
+ IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
+ icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
+ htonl(dst_mtu(&rt->u.dst)));
+ goto drop;
+ }
+
/* We are about to mangle packet. Copy it! */
if (skb_cow(skb, LL_RESERVED_SPACE(rt->u.dst.dev)+rt->u.dst.header_len))
goto drop;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
/* Decrease ttl after skb cow done */
ip_decrease_ttl(iph);
spinlock_t lock;
atomic_t refcnt;
struct timer_list timer; /* when will this queue expire? */
- struct timeval stamp;
+ ktime_t stamp;
int iif;
unsigned int rid;
struct inet_peer *peer;
{
struct ipq *qp = kmalloc(sizeof(struct ipq), GFP_ATOMIC);
- if(!qp)
+ if (!qp)
return NULL;
atomic_add(sizeof(struct ipq), &ip_frag_mem);
return qp;
* promoted read lock to write lock.
*/
hlist_for_each_entry(qp, n, &ipq_hash[hash], list) {
- if(qp->id == qp_in->id &&
- qp->saddr == qp_in->saddr &&
- qp->daddr == qp_in->daddr &&
- qp->protocol == qp_in->protocol &&
- qp->user == qp_in->user) {
+ if (qp->id == qp_in->id &&
+ qp->saddr == qp_in->saddr &&
+ qp->daddr == qp_in->daddr &&
+ qp->protocol == qp_in->protocol &&
+ qp->user == qp_in->user) {
atomic_inc(&qp->refcnt);
write_unlock(&ipfrag_lock);
qp_in->last_in |= COMPLETE;
read_lock(&ipfrag_lock);
hash = ipqhashfn(id, saddr, daddr, protocol);
hlist_for_each_entry(qp, n, &ipq_hash[hash], list) {
- if(qp->id == id &&
- qp->saddr == saddr &&
- qp->daddr == daddr &&
- qp->protocol == protocol &&
- qp->user == user) {
+ if (qp->id == id &&
+ qp->saddr == saddr &&
+ qp->daddr == daddr &&
+ qp->protocol == protocol &&
+ qp->user == user) {
atomic_inc(&qp->refcnt);
read_unlock(&ipfrag_lock);
return qp;
goto err;
}
- offset = ntohs(skb->nh.iph->frag_off);
+ offset = ntohs(ip_hdr(skb)->frag_off);
flags = offset & ~IP_OFFSET;
offset &= IP_OFFSET;
offset <<= 3; /* offset is in 8-byte chunks */
- ihl = skb->nh.iph->ihl * 4;
+ ihl = ip_hdrlen(skb);
/* Determine the position of this fragment. */
end = offset + skb->len - ihl;
* this fragment, right?
*/
prev = NULL;
- for(next = qp->fragments; next != NULL; next = next->next) {
+ for (next = qp->fragments; next != NULL; next = next->next) {
if (FRAG_CB(next)->offset >= offset)
break; /* bingo! */
prev = next;
if (skb->dev)
qp->iif = skb->dev->ifindex;
skb->dev = NULL;
- skb_get_timestamp(skb, &qp->stamp);
+ qp->stamp = skb->tstamp;
qp->meat += skb->len;
atomic_add(skb->truesize, &ip_frag_mem);
if (offset == 0)
BUG_TRAP(FRAG_CB(head)->offset == 0);
/* Allocate a new buffer for the datagram. */
- ihlen = head->nh.iph->ihl*4;
+ ihlen = ip_hdrlen(head);
len = ihlen + qp->len;
- if(len > 65535)
+ if (len > 65535)
goto out_oversize;
/* Head of list must not be cloned. */
}
skb_shinfo(head)->frag_list = head->next;
- skb_push(head, head->data - head->nh.raw);
+ skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &ip_frag_mem);
for (fp=head->next; fp; fp = fp->next) {
head->next = NULL;
head->dev = dev;
- skb_set_timestamp(head, &qp->stamp);
+ head->tstamp = qp->stamp;
- iph = head->nh.iph;
+ iph = ip_hdr(head);
iph->frag_off = 0;
iph->tot_len = htons(len);
IP_INC_STATS_BH(IPSTATS_MIB_REASMOKS);
/* Process an incoming IP datagram fragment. */
struct sk_buff *ip_defrag(struct sk_buff *skb, u32 user)
{
- struct iphdr *iph = skb->nh.iph;
struct ipq *qp;
struct net_device *dev;
dev = skb->dev;
/* Lookup (or create) queue header */
- if ((qp = ip_find(iph, user)) != NULL) {
+ if ((qp = ip_find(ip_hdr(skb), user)) != NULL) {
struct sk_buff *ret = NULL;
spin_lock(&qp->lock);
return NULL;
}
-void ipfrag_init(void)
+void __init ipfrag_init(void)
{
ipfrag_hash_rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^
(jiffies ^ (jiffies >> 6)));
return NULL;
}
-static struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
+static struct ip_tunnel **__ipgre_bucket(struct ip_tunnel_parm *parms)
{
- __be32 remote = t->parms.iph.daddr;
- __be32 local = t->parms.iph.saddr;
- __be32 key = t->parms.i_key;
+ __be32 remote = parms->iph.daddr;
+ __be32 local = parms->iph.saddr;
+ __be32 key = parms->i_key;
unsigned h = HASH(key);
int prio = 0;
return &tunnels[prio][h];
}
+static inline struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
+{
+ return __ipgre_bucket(&t->parms);
+}
+
static void ipgre_tunnel_link(struct ip_tunnel *t)
{
struct ip_tunnel **tp = ipgre_bucket(t);
__be32 key = parms->i_key;
struct ip_tunnel *t, **tp, *nt;
struct net_device *dev;
- unsigned h = HASH(key);
- int prio = 0;
char name[IFNAMSIZ];
- if (local)
- prio |= 1;
- if (remote && !MULTICAST(remote)) {
- prio |= 2;
- h ^= HASH(remote);
- }
- for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
+ for (tp = __ipgre_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) {
if (key == t->parms.i_key)
return t;
struct iphdr *iph = (struct iphdr*)skb->data;
__be16 *p = (__be16*)(skb->data+(iph->ihl<<2));
int grehlen = (iph->ihl<<2) + 4;
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
__be16 flags;
struct iphdr *iph = (struct iphdr*)dp;
struct iphdr *eiph;
__be16 *p = (__be16*)(dp+(iph->ihl<<2));
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
int rel_type = 0;
int rel_code = 0;
__be32 rel_info = 0;
default:
return;
case ICMP_PARAMETERPROB:
- n = ntohl(skb->h.icmph->un.gateway) >> 24;
+ n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
if (n < (iph->ihl<<2))
return;
return;
case ICMP_FRAG_NEEDED:
/* And it is the only really necessary thing :-) */
- n = ntohs(skb->h.icmph->un.frag.mtu);
+ n = ntohs(icmp_hdr(skb)->un.frag.mtu);
if (n < grehlen+68)
return;
n -= grehlen;
dst_release(skb2->dst);
skb2->dst = NULL;
skb_pull(skb2, skb->data - (u8*)eiph);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
/* Try to guess incoming interface */
memset(&fl, 0, sizeof(fl));
{
if (INET_ECN_is_ce(iph->tos)) {
if (skb->protocol == htons(ETH_P_IP)) {
- IP_ECN_set_ce(skb->nh.iph);
+ IP_ECN_set_ce(ip_hdr(skb));
} else if (skb->protocol == htons(ETH_P_IPV6)) {
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
}
}
if (!pskb_may_pull(skb, 16))
goto drop_nolock;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
h = skb->data;
flags = *(__be16*)h;
offset += 4;
}
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = __pskb_pull(skb, offset);
- skb_postpull_rcsum(skb, skb->h.raw, offset);
+ skb_reset_mac_header(skb);
+ __pskb_pull(skb, offset);
+ skb_reset_network_header(skb);
+ skb_postpull_rcsum(skb, skb_transport_header(skb), offset);
skb->pkt_type = PACKET_HOST;
#ifdef CONFIG_NET_IPGRE_BROADCAST
if (MULTICAST(iph->daddr)) {
{
struct ip_tunnel *tunnel = netdev_priv(dev);
struct net_device_stats *stats = &tunnel->stat;
- struct iphdr *old_iph = skb->nh.iph;
+ struct iphdr *old_iph = ip_hdr(skb);
struct iphdr *tiph;
u8 tos;
__be16 df;
addr_type = ipv6_addr_type(addr6);
if (addr_type == IPV6_ADDR_ANY) {
- addr6 = &skb->nh.ipv6h->daddr;
+ addr6 = &ipv6_hdr(skb)->daddr;
addr_type = ipv6_addr_type(addr6);
}
skb_set_owner_w(new_skb, skb->sk);
dev_kfree_skb(skb);
skb = new_skb;
- old_iph = skb->nh.iph;
+ old_iph = ip_hdr(skb);
}
- skb->h.raw = skb->nh.raw;
- skb->nh.raw = skb_push(skb, gre_hlen);
+ skb->transport_header = skb->network_header;
+ skb_push(skb, gre_hlen);
+ skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
IPSKB_REROUTED);
* Push down and install the IPIP header.
*/
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = sizeof(struct iphdr) >> 2;
iph->frag_off = df;
int ip_call_ra_chain(struct sk_buff *skb)
{
struct ip_ra_chain *ra;
- u8 protocol = skb->nh.iph->protocol;
+ u8 protocol = ip_hdr(skb)->protocol;
struct sock *last = NULL;
read_lock(&ip_ra_lock);
if (sk && inet_sk(sk)->num == protocol &&
(!sk->sk_bound_dev_if ||
sk->sk_bound_dev_if == skb->dev->ifindex)) {
- if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
+ if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
skb = ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN);
if (skb == NULL) {
read_unlock(&ip_ra_lock);
static inline int ip_local_deliver_finish(struct sk_buff *skb)
{
- int ihl = skb->nh.iph->ihl*4;
-
- __skb_pull(skb, ihl);
+ __skb_pull(skb, ip_hdrlen(skb));
/* Point into the IP datagram, just past the header. */
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
rcu_read_lock();
{
/* Note: See raw.c and net/raw.h, RAWV4_HTABLE_SIZE==MAX_INET_PROTOS */
- int protocol = skb->nh.iph->protocol;
+ int protocol = ip_hdr(skb)->protocol;
int hash;
struct sock *raw_sk;
struct net_protocol *ipprot;
/* If there maybe a raw socket we must check - if not we
* don't care less
*/
- if (raw_sk && !raw_v4_input(skb, skb->nh.iph, hash))
+ if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash))
raw_sk = NULL;
if ((ipprot = rcu_dereference(inet_protos[hash])) != NULL) {
* Reassemble IP fragments.
*/
- if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
+ if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
skb = ip_defrag(skb, IP_DEFRAG_LOCAL_DELIVER);
if (!skb)
return 0;
goto drop;
}
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (ip_options_compile(NULL, skb)) {
IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
static inline int ip_rcv_finish(struct sk_buff *skb)
{
- struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
/*
* Initialise the virtual path cache for the packet. It describes
if (!pskb_may_pull(skb, sizeof(struct iphdr)))
goto inhdr_error;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
/*
* RFC1122: 3.1.2.2 MUST silently discard any IP frame that fails the checksum.
if (!pskb_may_pull(skb, iph->ihl*4))
goto inhdr_error;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl)))
goto inhdr_error;
void ip_options_build(struct sk_buff * skb, struct ip_options * opt,
__be32 daddr, struct rtable *rt, int is_frag)
{
- unsigned char * iph = skb->nh.raw;
+ unsigned char *iph = skb_network_header(skb);
memcpy(&(IPCB(skb)->opt), opt, sizeof(struct ip_options));
memcpy(iph+sizeof(struct iphdr), opt->__data, opt->optlen);
return 0;
}
- sptr = skb->nh.raw;
+ sptr = skb_network_header(skb);
dptr = dopt->__data;
if (skb->dst)
daddr = ((struct rtable*)skb->dst)->rt_spec_dst;
else
- daddr = skb->nh.iph->daddr;
+ daddr = ip_hdr(skb)->daddr;
if (sopt->rr) {
optlen = sptr[sopt->rr+1];
/*
* RFC1812 requires to fix illegal source routes.
*/
- if (memcmp(&skb->nh.iph->saddr, &start[soffset+3], 4) == 0)
+ if (memcmp(&ip_hdr(skb)->saddr,
+ &start[soffset + 3], 4) == 0)
doffset -= 4;
}
if (doffset > 3) {
void ip_options_fragment(struct sk_buff * skb)
{
- unsigned char * optptr = skb->nh.raw + sizeof(struct iphdr);
+ unsigned char *optptr = skb_network_header(skb) + sizeof(struct iphdr);
struct ip_options * opt = &(IPCB(skb)->opt);
int l = opt->optlen;
int optlen;
if (!opt) {
opt = &(IPCB(skb)->opt);
- iph = skb->nh.raw;
+ iph = skb_network_header(skb);
opt->optlen = ((struct iphdr *)iph)->ihl*4 - sizeof(struct iphdr);
optptr = iph + sizeof(struct iphdr);
opt->is_data = 0;
} else {
- optptr = opt->is_data ? opt->__data : (unsigned char*)&(skb->nh.iph[1]);
+ optptr = opt->is_data ? opt->__data :
+ (unsigned char *)&(ip_hdr(skb)[1]);
iph = optptr - sizeof(struct iphdr);
}
struct ip_options * opt = &(IPCB(skb)->opt);
unsigned char * optptr;
struct rtable *rt = (struct rtable*)skb->dst;
- unsigned char *raw = skb->nh.raw;
+ unsigned char *raw = skb_network_header(skb);
if (opt->rr_needaddr) {
optptr = (unsigned char *)raw + opt->rr;
if (srrptr + 3 <= srrspace) {
opt->is_changed = 1;
ip_rt_get_source(&optptr[srrptr-1], rt);
- skb->nh.iph->daddr = rt->rt_dst;
+ ip_hdr(skb)->daddr = rt->rt_dst;
optptr[2] = srrptr+4;
} else if (net_ratelimit())
printk(KERN_CRIT "ip_forward(): Argh! Destination lost!\n");
}
if (opt->is_changed) {
opt->is_changed = 0;
- ip_send_check(skb->nh.iph);
+ ip_send_check(ip_hdr(skb));
}
}
struct ip_options *opt = &(IPCB(skb)->opt);
int srrspace, srrptr;
__be32 nexthop;
- struct iphdr *iph = skb->nh.iph;
- unsigned char * optptr = skb->nh.raw + opt->srr;
+ struct iphdr *iph = ip_hdr(skb);
+ unsigned char *optptr = skb_network_header(skb) + opt->srr;
struct rtable *rt = (struct rtable*)skb->dst;
struct rtable *rt2;
int err;
/* dev_loopback_xmit for use with netfilter. */
static int ip_dev_loopback_xmit(struct sk_buff *newskb)
{
- newskb->mac.raw = newskb->data;
- __skb_pull(newskb, newskb->nh.raw - newskb->data);
+ skb_reset_mac_header(newskb);
+ __skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
BUG_TRAP(newskb->dst);
struct iphdr *iph;
/* Build the IP header. */
- if (opt)
- iph=(struct iphdr *)skb_push(skb,sizeof(struct iphdr) + opt->optlen);
- else
- iph=(struct iphdr *)skb_push(skb,sizeof(struct iphdr));
-
+ skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = 5;
iph->tos = inet->tos;
iph->protocol = sk->sk_protocol;
iph->tot_len = htons(skb->len);
ip_select_ident(iph, &rt->u.dst, sk);
- skb->nh.iph = iph;
if (opt && opt->optlen) {
iph->ihl += opt->optlen>>2;
return -EINVAL;
}
+static inline int ip_skb_dst_mtu(struct sk_buff *skb)
+{
+ struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
+
+ return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
+ skb->dst->dev->mtu : dst_mtu(skb->dst);
+}
+
static inline int ip_finish_output(struct sk_buff *skb)
{
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
return dst_output(skb);
}
#endif
- if (skb->len > dst_mtu(skb->dst) && !skb_is_gso(skb))
+ if (skb->len > ip_skb_dst_mtu(skb) && !skb_is_gso(skb))
return ip_fragment(skb, ip_finish_output2);
else
return ip_finish_output2(skb);
/* Multicasts with ttl 0 must not go beyond the host */
- if (skb->nh.iph->ttl == 0) {
+ if (ip_hdr(skb)->ttl == 0) {
kfree_skb(skb);
return 0;
}
goto no_route;
/* OK, we know where to send it, allocate and build IP header. */
- iph = (struct iphdr *) skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
+ skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
*((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff));
iph->tot_len = htons(skb->len);
if (ip_dont_fragment(sk, &rt->u.dst) && !ipfragok)
iph->protocol = sk->sk_protocol;
iph->saddr = rt->rt_src;
iph->daddr = rt->rt_dst;
- skb->nh.iph = iph;
/* Transport layer set skb->h.foo itself. */
if (opt && opt->optlen) {
#ifdef CONFIG_NET_SCHED
to->tc_index = from->tc_index;
#endif
-#ifdef CONFIG_NETFILTER
- /* Connection association is same as pre-frag packet */
- nf_conntrack_put(to->nfct);
- to->nfct = from->nfct;
- nf_conntrack_get(to->nfct);
- to->nfctinfo = from->nfctinfo;
+ nf_copy(to, from);
#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
to->ipvs_property = from->ipvs_property;
-#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
- nf_bridge_put(to->nf_bridge);
- to->nf_bridge = from->nf_bridge;
- nf_bridge_get(to->nf_bridge);
-#endif
#endif
skb_copy_secmark(to, from);
}
* Point into the IP datagram header.
*/
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (unlikely((iph->frag_off & htons(IP_DF)) && !skb->local_df)) {
IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
- htonl(dst_mtu(&rt->u.dst)));
+ htonl(ip_skb_dst_mtu(skb)));
kfree_skb(skb);
return -EMSGSIZE;
}
* before previous one went down. */
if (frag) {
frag->ip_summed = CHECKSUM_NONE;
- frag->h.raw = frag->data;
- frag->nh.raw = __skb_push(frag, hlen);
- memcpy(frag->nh.raw, iph, hlen);
- iph = frag->nh.iph;
+ skb_reset_transport_header(frag);
+ __skb_push(frag, hlen);
+ skb_reset_network_header(frag);
+ memcpy(skb_network_header(frag), iph, hlen);
+ iph = ip_hdr(frag);
iph->tot_len = htons(frag->len);
ip_copy_metadata(frag, skb);
if (offset == 0)
* Keep copying data until we run out.
*/
- while(left > 0) {
+ while (left > 0) {
len = left;
/* IF: it doesn't fit, use 'mtu' - the data space left */
if (len > mtu)
ip_copy_metadata(skb2, skb);
skb_reserve(skb2, ll_rs);
skb_put(skb2, len + hlen);
- skb2->nh.raw = skb2->data;
- skb2->h.raw = skb2->data + hlen;
+ skb_reset_network_header(skb2);
+ skb2->transport_header = skb2->network_header + hlen;
/*
* Charge the memory for the fragment to any owner
* Copy the packet header into the new buffer.
*/
- memcpy(skb2->nh.raw, skb->data, hlen);
+ skb_copy_from_linear_data(skb, skb_network_header(skb2), hlen);
/*
* Copy a block of the IP datagram.
*/
- if (skb_copy_bits(skb, ptr, skb2->h.raw, len))
+ if (skb_copy_bits(skb, ptr, skb_transport_header(skb2), len))
BUG();
left -= len;
/*
* Fill in the new header fields.
*/
- iph = skb2->nh.iph;
+ iph = ip_hdr(skb2);
iph->frag_off = htons((offset >> 3));
/* ANK: dirty, but effective trick. Upgrade options only if
skb_put(skb,fragheaderlen + transhdrlen);
/* initialize network header pointer */
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* initialize protocol header pointer */
- skb->h.raw = skb->data + fragheaderlen;
+ skb->transport_header = skb->network_header + fragheaderlen;
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
inet->cork.addr = ipc->addr;
}
dst_hold(&rt->u.dst);
- inet->cork.fragsize = mtu = dst_mtu(rt->u.dst.path);
+ inet->cork.fragsize = mtu = inet->pmtudisc == IP_PMTUDISC_PROBE ?
+ rt->u.dst.dev->mtu :
+ dst_mtu(rt->u.dst.path);
inet->cork.rt = rt;
inet->cork.length = 0;
sk->sk_sndmsg_page = NULL;
* Find where to start putting bytes.
*/
data = skb_put(skb, fraglen);
- skb->nh.raw = data + exthdrlen;
+ skb_set_network_header(skb, exthdrlen);
+ skb->transport_header = (skb->network_header +
+ fragheaderlen);
data += fragheaderlen;
- skb->h.raw = data + exthdrlen;
if (fraggap) {
skb->csum = skb_copy_and_csum_bits(
}
if (len <= 0) {
struct sk_buff *skb_prev;
- char *data;
- struct iphdr *iph;
int alloclen;
skb_prev = skb;
/*
* Find where to start putting bytes.
*/
- data = skb_put(skb, fragheaderlen + fraggap);
- skb->nh.iph = iph = (struct iphdr *)data;
- data += fragheaderlen;
- skb->h.raw = data;
-
+ skb_put(skb, fragheaderlen + fraggap);
+ skb_reset_network_header(skb);
+ skb->transport_header = (skb->network_header +
+ fragheaderlen);
if (fraggap) {
- skb->csum = skb_copy_and_csum_bits(
- skb_prev, maxfraglen,
- data, fraggap, 0);
+ skb->csum = skb_copy_and_csum_bits(skb_prev,
+ maxfraglen,
+ skb_transport_header(skb),
+ fraggap, 0);
skb_prev->csum = csum_sub(skb_prev->csum,
skb->csum);
pskb_trim_unique(skb_prev, maxfraglen);
tail_skb = &(skb_shinfo(skb)->frag_list);
/* move skb->data to ip header from ext header */
- if (skb->data < skb->nh.raw)
- __skb_pull(skb, skb->nh.raw - skb->data);
+ if (skb->data < skb_network_header(skb))
+ __skb_pull(skb, skb_network_offset(skb));
while ((tmp_skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
- __skb_pull(tmp_skb, skb->h.raw - skb->nh.raw);
+ __skb_pull(tmp_skb, skb_network_header_len(skb));
*tail_skb = tmp_skb;
tail_skb = &(tmp_skb->next);
skb->len += tmp_skb->len;
* to fragment the frame generated here. No matter, what transforms
* how transforms change size of the packet, it will come out.
*/
- if (inet->pmtudisc != IP_PMTUDISC_DO)
+ if (inet->pmtudisc < IP_PMTUDISC_DO)
skb->local_df = 1;
/* DF bit is set when we want to see DF on outgoing frames.
* If local_df is set too, we still allow to fragment this frame
* locally. */
- if (inet->pmtudisc == IP_PMTUDISC_DO ||
+ if (inet->pmtudisc >= IP_PMTUDISC_DO ||
(skb->len <= dst_mtu(&rt->u.dst) &&
ip_dont_fragment(sk, &rt->u.dst)))
df = htons(IP_DF);
struct flowi fl = { .nl_u = { .ip4_u =
{ .daddr = daddr,
.saddr = rt->rt_spec_dst,
- .tos = RT_TOS(skb->nh.iph->tos) } },
+ .tos = RT_TOS(ip_hdr(skb)->tos) } },
/* Not quite clean, but right. */
.uli_u = { .ports =
- { .sport = skb->h.th->dest,
- .dport = skb->h.th->source } },
+ { .sport = tcp_hdr(skb)->dest,
+ .dport = tcp_hdr(skb)->source } },
.proto = sk->sk_protocol };
security_skb_classify_flow(skb, &fl);
if (ip_route_output_key(&rt, &fl))
with locally disabled BH and that sk cannot be already spinlocked.
*/
bh_lock_sock(sk);
- inet->tos = skb->nh.iph->tos;
+ inet->tos = ip_hdr(skb)->tos;
sk->sk_priority = skb->priority;
- sk->sk_protocol = skb->nh.iph->protocol;
+ sk->sk_protocol = ip_hdr(skb)->protocol;
ip_append_data(sk, ip_reply_glue_bits, arg->iov->iov_base, len, 0,
&ipc, rt, MSG_DONTWAIT);
if ((skb = skb_peek(&sk->sk_write_queue)) != NULL) {
if (arg->csumoffset >= 0)
- *((__sum16 *)skb->h.raw + arg->csumoffset) = csum_fold(csum_add(skb->csum, arg->csum));
+ *((__sum16 *)skb_transport_header(skb) +
+ arg->csumoffset) = csum_fold(csum_add(skb->csum,
+ arg->csum));
skb->ip_summed = CHECKSUM_NONE;
ip_push_pending_frames(sk);
}
struct in_pktinfo info;
struct rtable *rt = (struct rtable *)skb->dst;
- info.ipi_addr.s_addr = skb->nh.iph->daddr;
+ info.ipi_addr.s_addr = ip_hdr(skb)->daddr;
if (rt) {
info.ipi_ifindex = rt->rt_iif;
info.ipi_spec_dst.s_addr = rt->rt_spec_dst;
static void ip_cmsg_recv_ttl(struct msghdr *msg, struct sk_buff *skb)
{
- int ttl = skb->nh.iph->ttl;
+ int ttl = ip_hdr(skb)->ttl;
put_cmsg(msg, SOL_IP, IP_TTL, sizeof(int), &ttl);
}
static void ip_cmsg_recv_tos(struct msghdr *msg, struct sk_buff *skb)
{
- put_cmsg(msg, SOL_IP, IP_TOS, 1, &skb->nh.iph->tos);
+ put_cmsg(msg, SOL_IP, IP_TOS, 1, &ip_hdr(skb)->tos);
}
static void ip_cmsg_recv_opts(struct msghdr *msg, struct sk_buff *skb)
if (IPCB(skb)->opt.optlen == 0)
return;
- put_cmsg(msg, SOL_IP, IP_RECVOPTS, IPCB(skb)->opt.optlen, skb->nh.iph+1);
+ put_cmsg(msg, SOL_IP, IP_RECVOPTS, IPCB(skb)->opt.optlen,
+ ip_hdr(skb) + 1);
}
serr = SKB_EXT_ERR(skb);
serr->ee.ee_errno = err;
serr->ee.ee_origin = SO_EE_ORIGIN_ICMP;
- serr->ee.ee_type = skb->h.icmph->type;
- serr->ee.ee_code = skb->h.icmph->code;
+ serr->ee.ee_type = icmp_hdr(skb)->type;
+ serr->ee.ee_code = icmp_hdr(skb)->code;
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
- serr->addr_offset = (u8*)&(((struct iphdr*)(skb->h.icmph+1))->daddr) - skb->nh.raw;
+ serr->addr_offset = (u8 *)&(((struct iphdr *)(icmp_hdr(skb) + 1))->daddr) -
+ skb_network_header(skb);
serr->port = port;
- skb->h.raw = payload;
- if (!skb_pull(skb, payload - skb->data) ||
- sock_queue_err_skb(sk, skb))
- kfree_skb(skb);
+ if (skb_pull(skb, payload - skb->data) != NULL) {
+ skb_reset_transport_header(skb);
+ if (sock_queue_err_skb(sk, skb) == 0)
+ return;
+ }
+ kfree_skb(skb);
}
void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 info)
if (!skb)
return;
- iph = (struct iphdr*)skb_put(skb, sizeof(struct iphdr));
- skb->nh.iph = iph;
+ skb_put(skb, sizeof(struct iphdr));
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
iph->daddr = daddr;
serr = SKB_EXT_ERR(skb);
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
- serr->addr_offset = (u8*)&iph->daddr - skb->nh.raw;
+ serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb);
serr->port = port;
- skb->h.raw = skb->tail;
- __skb_pull(skb, skb->tail - skb->data);
+ __skb_pull(skb, skb_tail_pointer(skb) - skb->data);
+ skb_reset_transport_header(skb);
if (sock_queue_err_skb(sk, skb))
kfree_skb(skb);
sin = (struct sockaddr_in *)msg->msg_name;
if (sin) {
sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = *(__be32*)(skb->nh.raw + serr->addr_offset);
+ sin->sin_addr.s_addr = *(__be32 *)(skb_network_header(skb) +
+ serr->addr_offset);
sin->sin_port = serr->port;
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
}
struct inet_sock *inet = inet_sk(sk);
sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
sin->sin_port = 0;
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
if (inet->cmsg_flags)
*/
static int do_ip_setsockopt(struct sock *sk, int level,
- int optname, char __user *optval, int optlen)
+ int optname, char __user *optval, int optlen)
{
struct inet_sock *inet = inet_sk(sk);
int val=0,err;
if (((1<<optname) & ((1<<IP_PKTINFO) | (1<<IP_RECVTTL) |
- (1<<IP_RECVOPTS) | (1<<IP_RECVTOS) |
- (1<<IP_RETOPTS) | (1<<IP_TOS) |
- (1<<IP_TTL) | (1<<IP_HDRINCL) |
- (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) |
- (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
- (1<<IP_PASSSEC))) ||
- optname == IP_MULTICAST_TTL ||
- optname == IP_MULTICAST_LOOP) {
+ (1<<IP_RECVOPTS) | (1<<IP_RECVTOS) |
+ (1<<IP_RETOPTS) | (1<<IP_TOS) |
+ (1<<IP_TTL) | (1<<IP_HDRINCL) |
+ (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) |
+ (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
+ (1<<IP_PASSSEC))) ||
+ optname == IP_MULTICAST_TTL ||
+ optname == IP_MULTICAST_LOOP) {
if (optlen >= sizeof(int)) {
if (get_user(val, (int __user *) optval))
return -EFAULT;
lock_sock(sk);
switch (optname) {
- case IP_OPTIONS:
- {
- struct ip_options * opt = NULL;
- if (optlen > 40 || optlen < 0)
- goto e_inval;
- err = ip_options_get_from_user(&opt, optval, optlen);
- if (err)
- break;
- if (inet->is_icsk) {
- struct inet_connection_sock *icsk = inet_csk(sk);
+ case IP_OPTIONS:
+ {
+ struct ip_options * opt = NULL;
+ if (optlen > 40 || optlen < 0)
+ goto e_inval;
+ err = ip_options_get_from_user(&opt, optval, optlen);
+ if (err)
+ break;
+ if (inet->is_icsk) {
+ struct inet_connection_sock *icsk = inet_csk(sk);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
- if (sk->sk_family == PF_INET ||
- (!((1 << sk->sk_state) &
- (TCPF_LISTEN | TCPF_CLOSE)) &&
- inet->daddr != LOOPBACK4_IPV6)) {
+ if (sk->sk_family == PF_INET ||
+ (!((1 << sk->sk_state) &
+ (TCPF_LISTEN | TCPF_CLOSE)) &&
+ inet->daddr != LOOPBACK4_IPV6)) {
#endif
- if (inet->opt)
- icsk->icsk_ext_hdr_len -= inet->opt->optlen;
- if (opt)
- icsk->icsk_ext_hdr_len += opt->optlen;
- icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
+ if (inet->opt)
+ icsk->icsk_ext_hdr_len -= inet->opt->optlen;
+ if (opt)
+ icsk->icsk_ext_hdr_len += opt->optlen;
+ icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
- }
-#endif
}
- opt = xchg(&inet->opt, opt);
- kfree(opt);
- break;
+#endif
}
- case IP_PKTINFO:
- if (val)
- inet->cmsg_flags |= IP_CMSG_PKTINFO;
- else
- inet->cmsg_flags &= ~IP_CMSG_PKTINFO;
- break;
- case IP_RECVTTL:
- if (val)
- inet->cmsg_flags |= IP_CMSG_TTL;
- else
- inet->cmsg_flags &= ~IP_CMSG_TTL;
- break;
- case IP_RECVTOS:
- if (val)
- inet->cmsg_flags |= IP_CMSG_TOS;
- else
- inet->cmsg_flags &= ~IP_CMSG_TOS;
- break;
- case IP_RECVOPTS:
- if (val)
- inet->cmsg_flags |= IP_CMSG_RECVOPTS;
- else
- inet->cmsg_flags &= ~IP_CMSG_RECVOPTS;
- break;
- case IP_RETOPTS:
- if (val)
- inet->cmsg_flags |= IP_CMSG_RETOPTS;
- else
- inet->cmsg_flags &= ~IP_CMSG_RETOPTS;
+ opt = xchg(&inet->opt, opt);
+ kfree(opt);
+ break;
+ }
+ case IP_PKTINFO:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_PKTINFO;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_PKTINFO;
+ break;
+ case IP_RECVTTL:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_TTL;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_TTL;
+ break;
+ case IP_RECVTOS:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_TOS;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_TOS;
+ break;
+ case IP_RECVOPTS:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_RECVOPTS;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_RECVOPTS;
+ break;
+ case IP_RETOPTS:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_RETOPTS;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_RETOPTS;
+ break;
+ case IP_PASSSEC:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_PASSSEC;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_PASSSEC;
+ break;
+ case IP_TOS: /* This sets both TOS and Precedence */
+ if (sk->sk_type == SOCK_STREAM) {
+ val &= ~3;
+ val |= inet->tos & 3;
+ }
+ if (IPTOS_PREC(val) >= IPTOS_PREC_CRITIC_ECP &&
+ !capable(CAP_NET_ADMIN)) {
+ err = -EPERM;
break;
- case IP_PASSSEC:
- if (val)
- inet->cmsg_flags |= IP_CMSG_PASSSEC;
- else
- inet->cmsg_flags &= ~IP_CMSG_PASSSEC;
+ }
+ if (inet->tos != val) {
+ inet->tos = val;
+ sk->sk_priority = rt_tos2priority(val);
+ sk_dst_reset(sk);
+ }
+ break;
+ case IP_TTL:
+ if (optlen<1)
+ goto e_inval;
+ if (val != -1 && (val < 1 || val>255))
+ goto e_inval;
+ inet->uc_ttl = val;
+ break;
+ case IP_HDRINCL:
+ if (sk->sk_type != SOCK_RAW) {
+ err = -ENOPROTOOPT;
break;
- case IP_TOS: /* This sets both TOS and Precedence */
- if (sk->sk_type == SOCK_STREAM) {
- val &= ~3;
- val |= inet->tos & 3;
- }
- if (IPTOS_PREC(val) >= IPTOS_PREC_CRITIC_ECP &&
- !capable(CAP_NET_ADMIN)) {
- err = -EPERM;
+ }
+ inet->hdrincl = val ? 1 : 0;
+ break;
+ case IP_MTU_DISCOVER:
+ if (val<0 || val>3)
+ goto e_inval;
+ inet->pmtudisc = val;
+ break;
+ case IP_RECVERR:
+ inet->recverr = !!val;
+ if (!val)
+ skb_queue_purge(&sk->sk_error_queue);
+ break;
+ case IP_MULTICAST_TTL:
+ if (sk->sk_type == SOCK_STREAM)
+ goto e_inval;
+ if (optlen<1)
+ goto e_inval;
+ if (val==-1)
+ val = 1;
+ if (val < 0 || val > 255)
+ goto e_inval;
+ inet->mc_ttl = val;
+ break;
+ case IP_MULTICAST_LOOP:
+ if (optlen<1)
+ goto e_inval;
+ inet->mc_loop = !!val;
+ break;
+ case IP_MULTICAST_IF:
+ {
+ struct ip_mreqn mreq;
+ struct net_device *dev = NULL;
+
+ if (sk->sk_type == SOCK_STREAM)
+ goto e_inval;
+ /*
+ * Check the arguments are allowable
+ */
+
+ err = -EFAULT;
+ if (optlen >= sizeof(struct ip_mreqn)) {
+ if (copy_from_user(&mreq,optval,sizeof(mreq)))
break;
- }
- if (inet->tos != val) {
- inet->tos = val;
- sk->sk_priority = rt_tos2priority(val);
- sk_dst_reset(sk);
- }
- break;
- case IP_TTL:
- if (optlen<1)
- goto e_inval;
- if (val != -1 && (val < 1 || val>255))
- goto e_inval;
- inet->uc_ttl = val;
- break;
- case IP_HDRINCL:
- if (sk->sk_type != SOCK_RAW) {
- err = -ENOPROTOOPT;
+ } else {
+ memset(&mreq, 0, sizeof(mreq));
+ if (optlen >= sizeof(struct in_addr) &&
+ copy_from_user(&mreq.imr_address,optval,sizeof(struct in_addr)))
+ break;
+ }
+
+ if (!mreq.imr_ifindex) {
+ if (mreq.imr_address.s_addr == INADDR_ANY) {
+ inet->mc_index = 0;
+ inet->mc_addr = 0;
+ err = 0;
break;
}
- inet->hdrincl = val ? 1 : 0;
- break;
- case IP_MTU_DISCOVER:
- if (val<0 || val>2)
- goto e_inval;
- inet->pmtudisc = val;
- break;
- case IP_RECVERR:
- inet->recverr = !!val;
- if (!val)
- skb_queue_purge(&sk->sk_error_queue);
- break;
- case IP_MULTICAST_TTL:
- if (sk->sk_type == SOCK_STREAM)
- goto e_inval;
- if (optlen<1)
- goto e_inval;
- if (val==-1)
- val = 1;
- if (val < 0 || val > 255)
- goto e_inval;
- inet->mc_ttl = val;
- break;
- case IP_MULTICAST_LOOP:
- if (optlen<1)
- goto e_inval;
- inet->mc_loop = !!val;
- break;
- case IP_MULTICAST_IF:
- {
- struct ip_mreqn mreq;
- struct net_device *dev = NULL;
+ dev = ip_dev_find(mreq.imr_address.s_addr);
+ if (dev) {
+ mreq.imr_ifindex = dev->ifindex;
+ dev_put(dev);
+ }
+ } else
+ dev = __dev_get_by_index(mreq.imr_ifindex);
- if (sk->sk_type == SOCK_STREAM)
- goto e_inval;
- /*
- * Check the arguments are allowable
- */
- err = -EFAULT;
- if (optlen >= sizeof(struct ip_mreqn)) {
- if (copy_from_user(&mreq,optval,sizeof(mreq)))
- break;
- } else {
- memset(&mreq, 0, sizeof(mreq));
- if (optlen >= sizeof(struct in_addr) &&
- copy_from_user(&mreq.imr_address,optval,sizeof(struct in_addr)))
- break;
- }
+ err = -EADDRNOTAVAIL;
+ if (!dev)
+ break;
- if (!mreq.imr_ifindex) {
- if (mreq.imr_address.s_addr == INADDR_ANY) {
- inet->mc_index = 0;
- inet->mc_addr = 0;
- err = 0;
- break;
- }
- dev = ip_dev_find(mreq.imr_address.s_addr);
- if (dev) {
- mreq.imr_ifindex = dev->ifindex;
- dev_put(dev);
- }
- } else
- dev = __dev_get_by_index(mreq.imr_ifindex);
+ err = -EINVAL;
+ if (sk->sk_bound_dev_if &&
+ mreq.imr_ifindex != sk->sk_bound_dev_if)
+ break;
+ inet->mc_index = mreq.imr_ifindex;
+ inet->mc_addr = mreq.imr_address.s_addr;
+ err = 0;
+ break;
+ }
- err = -EADDRNOTAVAIL;
- if (!dev)
- break;
+ case IP_ADD_MEMBERSHIP:
+ case IP_DROP_MEMBERSHIP:
+ {
+ struct ip_mreqn mreq;
- err = -EINVAL;
- if (sk->sk_bound_dev_if &&
- mreq.imr_ifindex != sk->sk_bound_dev_if)
+ if (optlen < sizeof(struct ip_mreq))
+ goto e_inval;
+ err = -EFAULT;
+ if (optlen >= sizeof(struct ip_mreqn)) {
+ if (copy_from_user(&mreq,optval,sizeof(mreq)))
break;
+ } else {
+ memset(&mreq, 0, sizeof(mreq));
+ if (copy_from_user(&mreq,optval,sizeof(struct ip_mreq)))
+ break;
+ }
- inet->mc_index = mreq.imr_ifindex;
- inet->mc_addr = mreq.imr_address.s_addr;
- err = 0;
+ if (optname == IP_ADD_MEMBERSHIP)
+ err = ip_mc_join_group(sk, &mreq);
+ else
+ err = ip_mc_leave_group(sk, &mreq);
+ break;
+ }
+ case IP_MSFILTER:
+ {
+ extern int sysctl_igmp_max_msf;
+ struct ip_msfilter *msf;
+
+ if (optlen < IP_MSFILTER_SIZE(0))
+ goto e_inval;
+ if (optlen > sysctl_optmem_max) {
+ err = -ENOBUFS;
break;
}
+ msf = kmalloc(optlen, GFP_KERNEL);
+ if (msf == 0) {
+ err = -ENOBUFS;
+ break;
+ }
+ err = -EFAULT;
+ if (copy_from_user(msf, optval, optlen)) {
+ kfree(msf);
+ break;
+ }
+ /* numsrc >= (1G-4) overflow in 32 bits */
+ if (msf->imsf_numsrc >= 0x3ffffffcU ||
+ msf->imsf_numsrc > sysctl_igmp_max_msf) {
+ kfree(msf);
+ err = -ENOBUFS;
+ break;
+ }
+ if (IP_MSFILTER_SIZE(msf->imsf_numsrc) > optlen) {
+ kfree(msf);
+ err = -EINVAL;
+ break;
+ }
+ err = ip_mc_msfilter(sk, msf, 0);
+ kfree(msf);
+ break;
+ }
+ case IP_BLOCK_SOURCE:
+ case IP_UNBLOCK_SOURCE:
+ case IP_ADD_SOURCE_MEMBERSHIP:
+ case IP_DROP_SOURCE_MEMBERSHIP:
+ {
+ struct ip_mreq_source mreqs;
+ int omode, add;
- case IP_ADD_MEMBERSHIP:
- case IP_DROP_MEMBERSHIP:
- {
- struct ip_mreqn mreq;
-
- if (optlen < sizeof(struct ip_mreq))
- goto e_inval;
+ if (optlen != sizeof(struct ip_mreq_source))
+ goto e_inval;
+ if (copy_from_user(&mreqs, optval, sizeof(mreqs))) {
err = -EFAULT;
- if (optlen >= sizeof(struct ip_mreqn)) {
- if(copy_from_user(&mreq,optval,sizeof(mreq)))
- break;
- } else {
- memset(&mreq, 0, sizeof(mreq));
- if (copy_from_user(&mreq,optval,sizeof(struct ip_mreq)))
- break;
- }
-
- if (optname == IP_ADD_MEMBERSHIP)
- err = ip_mc_join_group(sk, &mreq);
- else
- err = ip_mc_leave_group(sk, &mreq);
break;
}
- case IP_MSFILTER:
- {
- extern int sysctl_igmp_max_msf;
- struct ip_msfilter *msf;
+ if (optname == IP_BLOCK_SOURCE) {
+ omode = MCAST_EXCLUDE;
+ add = 1;
+ } else if (optname == IP_UNBLOCK_SOURCE) {
+ omode = MCAST_EXCLUDE;
+ add = 0;
+ } else if (optname == IP_ADD_SOURCE_MEMBERSHIP) {
+ struct ip_mreqn mreq;
- if (optlen < IP_MSFILTER_SIZE(0))
- goto e_inval;
- if (optlen > sysctl_optmem_max) {
- err = -ENOBUFS;
- break;
- }
- msf = kmalloc(optlen, GFP_KERNEL);
- if (msf == 0) {
- err = -ENOBUFS;
+ mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;
+ mreq.imr_address.s_addr = mreqs.imr_interface;
+ mreq.imr_ifindex = 0;
+ err = ip_mc_join_group(sk, &mreq);
+ if (err && err != -EADDRINUSE)
break;
- }
+ omode = MCAST_INCLUDE;
+ add = 1;
+ } else /* IP_DROP_SOURCE_MEMBERSHIP */ {
+ omode = MCAST_INCLUDE;
+ add = 0;
+ }
+ err = ip_mc_source(add, omode, sk, &mreqs, 0);
+ break;
+ }
+ case MCAST_JOIN_GROUP:
+ case MCAST_LEAVE_GROUP:
+ {
+ struct group_req greq;
+ struct sockaddr_in *psin;
+ struct ip_mreqn mreq;
+
+ if (optlen < sizeof(struct group_req))
+ goto e_inval;
+ err = -EFAULT;
+ if (copy_from_user(&greq, optval, sizeof(greq)))
+ break;
+ psin = (struct sockaddr_in *)&greq.gr_group;
+ if (psin->sin_family != AF_INET)
+ goto e_inval;
+ memset(&mreq, 0, sizeof(mreq));
+ mreq.imr_multiaddr = psin->sin_addr;
+ mreq.imr_ifindex = greq.gr_interface;
+
+ if (optname == MCAST_JOIN_GROUP)
+ err = ip_mc_join_group(sk, &mreq);
+ else
+ err = ip_mc_leave_group(sk, &mreq);
+ break;
+ }
+ case MCAST_JOIN_SOURCE_GROUP:
+ case MCAST_LEAVE_SOURCE_GROUP:
+ case MCAST_BLOCK_SOURCE:
+ case MCAST_UNBLOCK_SOURCE:
+ {
+ struct group_source_req greqs;
+ struct ip_mreq_source mreqs;
+ struct sockaddr_in *psin;
+ int omode, add;
+
+ if (optlen != sizeof(struct group_source_req))
+ goto e_inval;
+ if (copy_from_user(&greqs, optval, sizeof(greqs))) {
err = -EFAULT;
- if (copy_from_user(msf, optval, optlen)) {
- kfree(msf);
- break;
- }
- /* numsrc >= (1G-4) overflow in 32 bits */
- if (msf->imsf_numsrc >= 0x3ffffffcU ||
- msf->imsf_numsrc > sysctl_igmp_max_msf) {
- kfree(msf);
- err = -ENOBUFS;
- break;
- }
- if (IP_MSFILTER_SIZE(msf->imsf_numsrc) > optlen) {
- kfree(msf);
- err = -EINVAL;
- break;
- }
- err = ip_mc_msfilter(sk, msf, 0);
- kfree(msf);
break;
}
- case IP_BLOCK_SOURCE:
- case IP_UNBLOCK_SOURCE:
- case IP_ADD_SOURCE_MEMBERSHIP:
- case IP_DROP_SOURCE_MEMBERSHIP:
- {
- struct ip_mreq_source mreqs;
- int omode, add;
-
- if (optlen != sizeof(struct ip_mreq_source))
- goto e_inval;
- if (copy_from_user(&mreqs, optval, sizeof(mreqs))) {
- err = -EFAULT;
- break;
- }
- if (optname == IP_BLOCK_SOURCE) {
- omode = MCAST_EXCLUDE;
- add = 1;
- } else if (optname == IP_UNBLOCK_SOURCE) {
- omode = MCAST_EXCLUDE;
- add = 0;
- } else if (optname == IP_ADD_SOURCE_MEMBERSHIP) {
- struct ip_mreqn mreq;
-
- mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;
- mreq.imr_address.s_addr = mreqs.imr_interface;
- mreq.imr_ifindex = 0;
- err = ip_mc_join_group(sk, &mreq);
- if (err && err != -EADDRINUSE)
- break;
- omode = MCAST_INCLUDE;
- add = 1;
- } else /* IP_DROP_SOURCE_MEMBERSHIP */ {
- omode = MCAST_INCLUDE;
- add = 0;
- }
- err = ip_mc_source(add, omode, sk, &mreqs, 0);
+ if (greqs.gsr_group.ss_family != AF_INET ||
+ greqs.gsr_source.ss_family != AF_INET) {
+ err = -EADDRNOTAVAIL;
break;
}
- case MCAST_JOIN_GROUP:
- case MCAST_LEAVE_GROUP:
- {
- struct group_req greq;
- struct sockaddr_in *psin;
+ psin = (struct sockaddr_in *)&greqs.gsr_group;
+ mreqs.imr_multiaddr = psin->sin_addr.s_addr;
+ psin = (struct sockaddr_in *)&greqs.gsr_source;
+ mreqs.imr_sourceaddr = psin->sin_addr.s_addr;
+ mreqs.imr_interface = 0; /* use index for mc_source */
+
+ if (optname == MCAST_BLOCK_SOURCE) {
+ omode = MCAST_EXCLUDE;
+ add = 1;
+ } else if (optname == MCAST_UNBLOCK_SOURCE) {
+ omode = MCAST_EXCLUDE;
+ add = 0;
+ } else if (optname == MCAST_JOIN_SOURCE_GROUP) {
struct ip_mreqn mreq;
- if (optlen < sizeof(struct group_req))
- goto e_inval;
- err = -EFAULT;
- if(copy_from_user(&greq, optval, sizeof(greq)))
- break;
- psin = (struct sockaddr_in *)&greq.gr_group;
- if (psin->sin_family != AF_INET)
- goto e_inval;
- memset(&mreq, 0, sizeof(mreq));
+ psin = (struct sockaddr_in *)&greqs.gsr_group;
mreq.imr_multiaddr = psin->sin_addr;
- mreq.imr_ifindex = greq.gr_interface;
-
- if (optname == MCAST_JOIN_GROUP)
- err = ip_mc_join_group(sk, &mreq);
- else
- err = ip_mc_leave_group(sk, &mreq);
+ mreq.imr_address.s_addr = 0;
+ mreq.imr_ifindex = greqs.gsr_interface;
+ err = ip_mc_join_group(sk, &mreq);
+ if (err && err != -EADDRINUSE)
+ break;
+ greqs.gsr_interface = mreq.imr_ifindex;
+ omode = MCAST_INCLUDE;
+ add = 1;
+ } else /* MCAST_LEAVE_SOURCE_GROUP */ {
+ omode = MCAST_INCLUDE;
+ add = 0;
+ }
+ err = ip_mc_source(add, omode, sk, &mreqs,
+ greqs.gsr_interface);
+ break;
+ }
+ case MCAST_MSFILTER:
+ {
+ extern int sysctl_igmp_max_msf;
+ struct sockaddr_in *psin;
+ struct ip_msfilter *msf = NULL;
+ struct group_filter *gsf = NULL;
+ int msize, i, ifindex;
+
+ if (optlen < GROUP_FILTER_SIZE(0))
+ goto e_inval;
+ if (optlen > sysctl_optmem_max) {
+ err = -ENOBUFS;
break;
}
- case MCAST_JOIN_SOURCE_GROUP:
- case MCAST_LEAVE_SOURCE_GROUP:
- case MCAST_BLOCK_SOURCE:
- case MCAST_UNBLOCK_SOURCE:
- {
- struct group_source_req greqs;
- struct ip_mreq_source mreqs;
- struct sockaddr_in *psin;
- int omode, add;
-
- if (optlen != sizeof(struct group_source_req))
- goto e_inval;
- if (copy_from_user(&greqs, optval, sizeof(greqs))) {
- err = -EFAULT;
- break;
- }
- if (greqs.gsr_group.ss_family != AF_INET ||
- greqs.gsr_source.ss_family != AF_INET) {
- err = -EADDRNOTAVAIL;
- break;
- }
- psin = (struct sockaddr_in *)&greqs.gsr_group;
- mreqs.imr_multiaddr = psin->sin_addr.s_addr;
- psin = (struct sockaddr_in *)&greqs.gsr_source;
- mreqs.imr_sourceaddr = psin->sin_addr.s_addr;
- mreqs.imr_interface = 0; /* use index for mc_source */
-
- if (optname == MCAST_BLOCK_SOURCE) {
- omode = MCAST_EXCLUDE;
- add = 1;
- } else if (optname == MCAST_UNBLOCK_SOURCE) {
- omode = MCAST_EXCLUDE;
- add = 0;
- } else if (optname == MCAST_JOIN_SOURCE_GROUP) {
- struct ip_mreqn mreq;
-
- psin = (struct sockaddr_in *)&greqs.gsr_group;
- mreq.imr_multiaddr = psin->sin_addr;
- mreq.imr_address.s_addr = 0;
- mreq.imr_ifindex = greqs.gsr_interface;
- err = ip_mc_join_group(sk, &mreq);
- if (err && err != -EADDRINUSE)
- break;
- greqs.gsr_interface = mreq.imr_ifindex;
- omode = MCAST_INCLUDE;
- add = 1;
- } else /* MCAST_LEAVE_SOURCE_GROUP */ {
- omode = MCAST_INCLUDE;
- add = 0;
- }
- err = ip_mc_source(add, omode, sk, &mreqs,
- greqs.gsr_interface);
+ gsf = kmalloc(optlen,GFP_KERNEL);
+ if (gsf == 0) {
+ err = -ENOBUFS;
break;
}
- case MCAST_MSFILTER:
- {
- extern int sysctl_igmp_max_msf;
- struct sockaddr_in *psin;
- struct ip_msfilter *msf = NULL;
- struct group_filter *gsf = NULL;
- int msize, i, ifindex;
-
- if (optlen < GROUP_FILTER_SIZE(0))
- goto e_inval;
- if (optlen > sysctl_optmem_max) {
- err = -ENOBUFS;
- break;
- }
- gsf = kmalloc(optlen,GFP_KERNEL);
- if (gsf == 0) {
- err = -ENOBUFS;
- break;
- }
- err = -EFAULT;
- if (copy_from_user(gsf, optval, optlen)) {
- goto mc_msf_out;
- }
- /* numsrc >= (4G-140)/128 overflow in 32 bits */
- if (gsf->gf_numsrc >= 0x1ffffff ||
- gsf->gf_numsrc > sysctl_igmp_max_msf) {
- err = -ENOBUFS;
- goto mc_msf_out;
- }
- if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
- err = -EINVAL;
- goto mc_msf_out;
- }
- msize = IP_MSFILTER_SIZE(gsf->gf_numsrc);
- msf = kmalloc(msize,GFP_KERNEL);
- if (msf == 0) {
- err = -ENOBUFS;
- goto mc_msf_out;
- }
- ifindex = gsf->gf_interface;
- psin = (struct sockaddr_in *)&gsf->gf_group;
- if (psin->sin_family != AF_INET) {
- err = -EADDRNOTAVAIL;
- goto mc_msf_out;
- }
- msf->imsf_multiaddr = psin->sin_addr.s_addr;
- msf->imsf_interface = 0;
- msf->imsf_fmode = gsf->gf_fmode;
- msf->imsf_numsrc = gsf->gf_numsrc;
+ err = -EFAULT;
+ if (copy_from_user(gsf, optval, optlen)) {
+ goto mc_msf_out;
+ }
+ /* numsrc >= (4G-140)/128 overflow in 32 bits */
+ if (gsf->gf_numsrc >= 0x1ffffff ||
+ gsf->gf_numsrc > sysctl_igmp_max_msf) {
+ err = -ENOBUFS;
+ goto mc_msf_out;
+ }
+ if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
+ err = -EINVAL;
+ goto mc_msf_out;
+ }
+ msize = IP_MSFILTER_SIZE(gsf->gf_numsrc);
+ msf = kmalloc(msize,GFP_KERNEL);
+ if (msf == 0) {
+ err = -ENOBUFS;
+ goto mc_msf_out;
+ }
+ ifindex = gsf->gf_interface;
+ psin = (struct sockaddr_in *)&gsf->gf_group;
+ if (psin->sin_family != AF_INET) {
err = -EADDRNOTAVAIL;
- for (i=0; i<gsf->gf_numsrc; ++i) {
- psin = (struct sockaddr_in *)&gsf->gf_slist[i];
-
- if (psin->sin_family != AF_INET)
- goto mc_msf_out;
- msf->imsf_slist[i] = psin->sin_addr.s_addr;
- }
- kfree(gsf);
- gsf = NULL;
-
- err = ip_mc_msfilter(sk, msf, ifindex);
-mc_msf_out:
- kfree(msf);
- kfree(gsf);
- break;
+ goto mc_msf_out;
}
- case IP_ROUTER_ALERT:
- err = ip_ra_control(sk, val ? 1 : 0, NULL);
- break;
-
- case IP_FREEBIND:
- if (optlen<1)
- goto e_inval;
- inet->freebind = !!val;
- break;
+ msf->imsf_multiaddr = psin->sin_addr.s_addr;
+ msf->imsf_interface = 0;
+ msf->imsf_fmode = gsf->gf_fmode;
+ msf->imsf_numsrc = gsf->gf_numsrc;
+ err = -EADDRNOTAVAIL;
+ for (i=0; i<gsf->gf_numsrc; ++i) {
+ psin = (struct sockaddr_in *)&gsf->gf_slist[i];
- case IP_IPSEC_POLICY:
- case IP_XFRM_POLICY:
- err = -EPERM;
- if (!capable(CAP_NET_ADMIN))
- break;
- err = xfrm_user_policy(sk, optname, optval, optlen);
+ if (psin->sin_family != AF_INET)
+ goto mc_msf_out;
+ msf->imsf_slist[i] = psin->sin_addr.s_addr;
+ }
+ kfree(gsf);
+ gsf = NULL;
+
+ err = ip_mc_msfilter(sk, msf, ifindex);
+ mc_msf_out:
+ kfree(msf);
+ kfree(gsf);
+ break;
+ }
+ case IP_ROUTER_ALERT:
+ err = ip_ra_control(sk, val ? 1 : 0, NULL);
+ break;
+
+ case IP_FREEBIND:
+ if (optlen<1)
+ goto e_inval;
+ inet->freebind = !!val;
+ break;
+
+ case IP_IPSEC_POLICY:
+ case IP_XFRM_POLICY:
+ err = -EPERM;
+ if (!capable(CAP_NET_ADMIN))
break;
+ err = xfrm_user_policy(sk, optname, optval, optlen);
+ break;
- default:
- err = -ENOPROTOOPT;
- break;
+ default:
+ err = -ENOPROTOOPT;
+ break;
}
release_sock(sk);
return err;
*/
static int do_ip_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
+ char __user *optval, int __user *optlen)
{
struct inet_sock *inet = inet_sk(sk);
int val;
int len;
- if(level!=SOL_IP)
+ if (level != SOL_IP)
return -EOPNOTSUPP;
#ifdef CONFIG_IP_MROUTE
- if(optname>=MRT_BASE && optname <=MRT_BASE+10)
- {
+ if (optname >= MRT_BASE && optname <= MRT_BASE+10) {
return ip_mroute_getsockopt(sk,optname,optval,optlen);
}
#endif
- if(get_user(len,optlen))
+ if (get_user(len,optlen))
return -EFAULT;
- if(len < 0)
+ if (len < 0)
return -EINVAL;
lock_sock(sk);
- switch(optname) {
- case IP_OPTIONS:
- {
- unsigned char optbuf[sizeof(struct ip_options)+40];
- struct ip_options * opt = (struct ip_options*)optbuf;
- opt->optlen = 0;
- if (inet->opt)
- memcpy(optbuf, inet->opt,
- sizeof(struct ip_options)+
- inet->opt->optlen);
- release_sock(sk);
-
- if (opt->optlen == 0)
- return put_user(0, optlen);
-
- ip_options_undo(opt);
-
- len = min_t(unsigned int, len, opt->optlen);
- if(put_user(len, optlen))
- return -EFAULT;
- if(copy_to_user(optval, opt->__data, len))
- return -EFAULT;
- return 0;
- }
- case IP_PKTINFO:
- val = (inet->cmsg_flags & IP_CMSG_PKTINFO) != 0;
- break;
- case IP_RECVTTL:
- val = (inet->cmsg_flags & IP_CMSG_TTL) != 0;
- break;
- case IP_RECVTOS:
- val = (inet->cmsg_flags & IP_CMSG_TOS) != 0;
- break;
- case IP_RECVOPTS:
- val = (inet->cmsg_flags & IP_CMSG_RECVOPTS) != 0;
- break;
- case IP_RETOPTS:
- val = (inet->cmsg_flags & IP_CMSG_RETOPTS) != 0;
- break;
- case IP_PASSSEC:
- val = (inet->cmsg_flags & IP_CMSG_PASSSEC) != 0;
- break;
- case IP_TOS:
- val = inet->tos;
- break;
- case IP_TTL:
- val = (inet->uc_ttl == -1 ?
- sysctl_ip_default_ttl :
- inet->uc_ttl);
- break;
- case IP_HDRINCL:
- val = inet->hdrincl;
- break;
- case IP_MTU_DISCOVER:
- val = inet->pmtudisc;
- break;
- case IP_MTU:
- {
- struct dst_entry *dst;
- val = 0;
- dst = sk_dst_get(sk);
- if (dst) {
- val = dst_mtu(dst);
- dst_release(dst);
- }
- if (!val) {
- release_sock(sk);
- return -ENOTCONN;
- }
- break;
+ switch (optname) {
+ case IP_OPTIONS:
+ {
+ unsigned char optbuf[sizeof(struct ip_options)+40];
+ struct ip_options * opt = (struct ip_options*)optbuf;
+ opt->optlen = 0;
+ if (inet->opt)
+ memcpy(optbuf, inet->opt,
+ sizeof(struct ip_options)+
+ inet->opt->optlen);
+ release_sock(sk);
+
+ if (opt->optlen == 0)
+ return put_user(0, optlen);
+
+ ip_options_undo(opt);
+
+ len = min_t(unsigned int, len, opt->optlen);
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, opt->__data, len))
+ return -EFAULT;
+ return 0;
+ }
+ case IP_PKTINFO:
+ val = (inet->cmsg_flags & IP_CMSG_PKTINFO) != 0;
+ break;
+ case IP_RECVTTL:
+ val = (inet->cmsg_flags & IP_CMSG_TTL) != 0;
+ break;
+ case IP_RECVTOS:
+ val = (inet->cmsg_flags & IP_CMSG_TOS) != 0;
+ break;
+ case IP_RECVOPTS:
+ val = (inet->cmsg_flags & IP_CMSG_RECVOPTS) != 0;
+ break;
+ case IP_RETOPTS:
+ val = (inet->cmsg_flags & IP_CMSG_RETOPTS) != 0;
+ break;
+ case IP_PASSSEC:
+ val = (inet->cmsg_flags & IP_CMSG_PASSSEC) != 0;
+ break;
+ case IP_TOS:
+ val = inet->tos;
+ break;
+ case IP_TTL:
+ val = (inet->uc_ttl == -1 ?
+ sysctl_ip_default_ttl :
+ inet->uc_ttl);
+ break;
+ case IP_HDRINCL:
+ val = inet->hdrincl;
+ break;
+ case IP_MTU_DISCOVER:
+ val = inet->pmtudisc;
+ break;
+ case IP_MTU:
+ {
+ struct dst_entry *dst;
+ val = 0;
+ dst = sk_dst_get(sk);
+ if (dst) {
+ val = dst_mtu(dst);
+ dst_release(dst);
}
- case IP_RECVERR:
- val = inet->recverr;
- break;
- case IP_MULTICAST_TTL:
- val = inet->mc_ttl;
- break;
- case IP_MULTICAST_LOOP:
- val = inet->mc_loop;
- break;
- case IP_MULTICAST_IF:
- {
- struct in_addr addr;
- len = min_t(unsigned int, len, sizeof(struct in_addr));
- addr.s_addr = inet->mc_addr;
+ if (!val) {
release_sock(sk);
-
- if(put_user(len, optlen))
- return -EFAULT;
- if(copy_to_user(optval, &addr, len))
- return -EFAULT;
- return 0;
+ return -ENOTCONN;
}
- case IP_MSFILTER:
- {
- struct ip_msfilter msf;
- int err;
+ break;
+ }
+ case IP_RECVERR:
+ val = inet->recverr;
+ break;
+ case IP_MULTICAST_TTL:
+ val = inet->mc_ttl;
+ break;
+ case IP_MULTICAST_LOOP:
+ val = inet->mc_loop;
+ break;
+ case IP_MULTICAST_IF:
+ {
+ struct in_addr addr;
+ len = min_t(unsigned int, len, sizeof(struct in_addr));
+ addr.s_addr = inet->mc_addr;
+ release_sock(sk);
- if (len < IP_MSFILTER_SIZE(0)) {
- release_sock(sk);
- return -EINVAL;
- }
- if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0))) {
- release_sock(sk);
- return -EFAULT;
- }
- err = ip_mc_msfget(sk, &msf,
- (struct ip_msfilter __user *)optval, optlen);
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &addr, len))
+ return -EFAULT;
+ return 0;
+ }
+ case IP_MSFILTER:
+ {
+ struct ip_msfilter msf;
+ int err;
+
+ if (len < IP_MSFILTER_SIZE(0)) {
release_sock(sk);
- return err;
+ return -EINVAL;
}
- case MCAST_MSFILTER:
- {
- struct group_filter gsf;
- int err;
-
- if (len < GROUP_FILTER_SIZE(0)) {
- release_sock(sk);
- return -EINVAL;
- }
- if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0))) {
- release_sock(sk);
- return -EFAULT;
- }
- err = ip_mc_gsfget(sk, &gsf,
- (struct group_filter __user *)optval, optlen);
+ if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0))) {
release_sock(sk);
- return err;
+ return -EFAULT;
}
- case IP_PKTOPTIONS:
- {
- struct msghdr msg;
+ err = ip_mc_msfget(sk, &msf,
+ (struct ip_msfilter __user *)optval, optlen);
+ release_sock(sk);
+ return err;
+ }
+ case MCAST_MSFILTER:
+ {
+ struct group_filter gsf;
+ int err;
+ if (len < GROUP_FILTER_SIZE(0)) {
release_sock(sk);
+ return -EINVAL;
+ }
+ if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0))) {
+ release_sock(sk);
+ return -EFAULT;
+ }
+ err = ip_mc_gsfget(sk, &gsf,
+ (struct group_filter __user *)optval, optlen);
+ release_sock(sk);
+ return err;
+ }
+ case IP_PKTOPTIONS:
+ {
+ struct msghdr msg;
+
+ release_sock(sk);
- if (sk->sk_type != SOCK_STREAM)
- return -ENOPROTOOPT;
+ if (sk->sk_type != SOCK_STREAM)
+ return -ENOPROTOOPT;
- msg.msg_control = optval;
- msg.msg_controllen = len;
- msg.msg_flags = 0;
+ msg.msg_control = optval;
+ msg.msg_controllen = len;
+ msg.msg_flags = 0;
- if (inet->cmsg_flags & IP_CMSG_PKTINFO) {
- struct in_pktinfo info;
+ if (inet->cmsg_flags & IP_CMSG_PKTINFO) {
+ struct in_pktinfo info;
- info.ipi_addr.s_addr = inet->rcv_saddr;
- info.ipi_spec_dst.s_addr = inet->rcv_saddr;
- info.ipi_ifindex = inet->mc_index;
- put_cmsg(&msg, SOL_IP, IP_PKTINFO, sizeof(info), &info);
- }
- if (inet->cmsg_flags & IP_CMSG_TTL) {
- int hlim = inet->mc_ttl;
- put_cmsg(&msg, SOL_IP, IP_TTL, sizeof(hlim), &hlim);
- }
- len -= msg.msg_controllen;
- return put_user(len, optlen);
+ info.ipi_addr.s_addr = inet->rcv_saddr;
+ info.ipi_spec_dst.s_addr = inet->rcv_saddr;
+ info.ipi_ifindex = inet->mc_index;
+ put_cmsg(&msg, SOL_IP, IP_PKTINFO, sizeof(info), &info);
}
- case IP_FREEBIND:
- val = inet->freebind;
- break;
- default:
- release_sock(sk);
- return -ENOPROTOOPT;
+ if (inet->cmsg_flags & IP_CMSG_TTL) {
+ int hlim = inet->mc_ttl;
+ put_cmsg(&msg, SOL_IP, IP_TTL, sizeof(hlim), &hlim);
+ }
+ len -= msg.msg_controllen;
+ return put_user(len, optlen);
+ }
+ case IP_FREEBIND:
+ val = inet->freebind;
+ break;
+ default:
+ release_sock(sk);
+ return -ENOPROTOOPT;
}
release_sock(sk);
if (len < sizeof(int) && len > 0 && val>=0 && val<255) {
unsigned char ucval = (unsigned char)val;
len = 1;
- if(put_user(len, optlen))
+ if (put_user(len, optlen))
return -EFAULT;
- if(copy_to_user(optval,&ucval,1))
+ if (copy_to_user(optval,&ucval,1))
return -EFAULT;
} else {
len = min_t(unsigned int, sizeof(int), len);
- if(put_user(len, optlen))
+ if (put_user(len, optlen))
return -EFAULT;
- if(copy_to_user(optval,&val,len))
+ if (copy_to_user(optval,&val,len))
return -EFAULT;
}
return 0;
}
int ip_getsockopt(struct sock *sk, int level,
- int optname, char __user *optval, int __user *optlen)
+ int optname, char __user *optval, int __user *optlen)
{
int err;
) {
int len;
- if(get_user(len,optlen))
+ if (get_user(len,optlen))
return -EFAULT;
lock_sock(sk);
static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb)
{
- int err, plen, dlen;
struct ipcomp_data *ipcd = x->data;
- u8 *start, *scratch;
- struct crypto_comp *tfm;
- int cpu;
-
- plen = skb->len;
- dlen = IPCOMP_SCRATCH_SIZE;
- start = skb->data;
+ const int plen = skb->len;
+ int dlen = IPCOMP_SCRATCH_SIZE;
+ const u8 *start = skb->data;
+ const int cpu = get_cpu();
+ u8 *scratch = *per_cpu_ptr(ipcomp_scratches, cpu);
+ struct crypto_comp *tfm = *per_cpu_ptr(ipcd->tfms, cpu);
+ int err = crypto_comp_decompress(tfm, start, plen, scratch, &dlen);
- cpu = get_cpu();
- scratch = *per_cpu_ptr(ipcomp_scratches, cpu);
- tfm = *per_cpu_ptr(ipcd->tfms, cpu);
-
- err = crypto_comp_decompress(tfm, start, plen, scratch, &dlen);
if (err)
goto out;
skb->truesize += dlen - plen;
__skb_put(skb, dlen - plen);
- memcpy(skb->data, scratch, dlen);
+ skb_copy_to_linear_data(skb, scratch, dlen);
out:
put_cpu();
return err;
skb->ip_summed = CHECKSUM_NONE;
/* Remove ipcomp header and decompress original payload */
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
ipch = (void *)skb->data;
iph->protocol = ipch->nexthdr;
- skb->h.raw = skb->nh.raw + sizeof(*ipch);
+ skb->transport_header = skb->network_header + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));
err = ipcomp_decompress(x, skb);
static int ipcomp_compress(struct xfrm_state *x, struct sk_buff *skb)
{
- int err, plen, dlen, ihlen;
- struct iphdr *iph = skb->nh.iph;
struct ipcomp_data *ipcd = x->data;
- u8 *start, *scratch;
- struct crypto_comp *tfm;
- int cpu;
+ const int ihlen = ip_hdrlen(skb);
+ const int plen = skb->len - ihlen;
+ int dlen = IPCOMP_SCRATCH_SIZE;
+ u8 *start = skb->data + ihlen;
+ const int cpu = get_cpu();
+ u8 *scratch = *per_cpu_ptr(ipcomp_scratches, cpu);
+ struct crypto_comp *tfm = *per_cpu_ptr(ipcd->tfms, cpu);
+ int err = crypto_comp_compress(tfm, start, plen, scratch, &dlen);
- ihlen = iph->ihl * 4;
- plen = skb->len - ihlen;
- dlen = IPCOMP_SCRATCH_SIZE;
- start = skb->data + ihlen;
-
- cpu = get_cpu();
- scratch = *per_cpu_ptr(ipcomp_scratches, cpu);
- tfm = *per_cpu_ptr(ipcd->tfms, cpu);
-
- err = crypto_comp_compress(tfm, start, plen, scratch, &dlen);
if (err)
goto out;
static int ipcomp_output(struct xfrm_state *x, struct sk_buff *skb)
{
int err;
- struct iphdr *iph;
struct ip_comp_hdr *ipch;
struct ipcomp_data *ipcd = x->data;
int hdr_len = 0;
+ struct iphdr *iph = ip_hdr(skb);
- iph = skb->nh.iph;
iph->tot_len = htons(skb->len);
hdr_len = iph->ihl * 4;
if ((skb->len - hdr_len) < ipcd->threshold) {
goto out_ok;
err = ipcomp_compress(x, skb);
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (err) {
goto out_ok;
struct ip_comp_hdr *ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2));
struct xfrm_state *x;
- if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
- skb->h.icmph->code != ICMP_FRAG_NEEDED)
+ if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
+ icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
return;
spi = htonl(ntohs(ipch->cpi));
goto drop;
/* Basic sanity checks can be done without the lock. */
- rarp = (struct arphdr *)skb->h.raw;
+ rarp = (struct arphdr *)skb_transport_header(skb);
/* If this test doesn't pass, it's not IP, or we should
* ignore it anyway.
goto drop;
/* OK, it is all there and looks valid, process... */
- rarp = (struct arphdr *)skb->h.raw;
+ rarp = (struct arphdr *)skb_transport_header(skb);
rarp_ptr = (unsigned char *) (rarp + 1);
/* One reply at a time, please. */
memset(b, 0, sizeof(struct bootp_pkt));
/* Construct IP header */
- skb->nh.iph = h = &b->iph;
+ skb_reset_network_header(skb);
+ h = ip_hdr(skb);
h->version = 4;
h->ihl = 5;
h->tot_len = htons(sizeof(struct bootp_pkt));
u8 *c;
printk("DHCP/BOOTP: Got extension %d:",*ext);
- for(c=ext+2; c<ext+2+ext[1]; c++)
+ for (c=ext+2; c<ext+2+ext[1]; c++)
printk(" %02x", *c);
printk("\n");
#endif
sizeof(struct udphdr)))
goto drop;
- b = (struct bootp_pkt *) skb->nh.iph;
+ b = (struct bootp_pkt *)skb_network_header(skb);
h = &b->iph;
if (h->ihl != 5 || h->version != 4 || h->protocol != IPPROTO_UDP)
if (!pskb_may_pull(skb, skb->len))
goto drop;
- b = (struct bootp_pkt *) skb->nh.iph;
+ b = (struct bootp_pkt *)skb_network_header(skb);
h = &b->iph;
/* One reply at a time, please. */
if (opt[1] >= 4)
memcpy(&server_id, opt + 2, 4);
break;
- };
+ }
}
#ifdef IPCONFIG_DEBUG
ic_myaddr = NONE;
ic_servaddr = NONE;
goto drop_unlock;
- };
+ }
ic_dhcp_msgtype = mt;
retries = CONF_SEND_RETRIES;
get_random_bytes(&timeout, sizeof(timeout));
timeout = CONF_BASE_TIMEOUT + (timeout % (unsigned) CONF_TIMEOUT_RANDOM);
- for(;;) {
+ for (;;) {
#ifdef IPCONFIG_BOOTP
if (do_bootp && (d->able & IC_BOOTP))
ic_bootp_send_if(d, jiffies - start_jiffies);
return NULL;
}
-static struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
+static struct ip_tunnel **__ipip_bucket(struct ip_tunnel_parm *parms)
{
- __be32 remote = t->parms.iph.daddr;
- __be32 local = t->parms.iph.saddr;
+ __be32 remote = parms->iph.daddr;
+ __be32 local = parms->iph.saddr;
unsigned h = 0;
int prio = 0;
return &tunnels[prio][h];
}
+static inline struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
+{
+ return __ipip_bucket(&t->parms);
+}
static void ipip_tunnel_unlink(struct ip_tunnel *t)
{
__be32 local = parms->iph.saddr;
struct ip_tunnel *t, **tp, *nt;
struct net_device *dev;
- unsigned h = 0;
- int prio = 0;
char name[IFNAMSIZ];
- if (remote) {
- prio |= 2;
- h ^= HASH(remote);
- }
- if (local) {
- prio |= 1;
- h ^= HASH(local);
- }
- for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
+ for (tp = __ipip_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
return t;
}
ICMP in the real Internet is absolutely infeasible.
*/
struct iphdr *iph = (struct iphdr*)skb->data;
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
int err;
struct iphdr *iph = (struct iphdr*)dp;
int hlen = iph->ihl<<2;
struct iphdr *eiph;
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
int rel_type = 0;
int rel_code = 0;
__be32 rel_info = 0;
default:
return 0;
case ICMP_PARAMETERPROB:
- n = ntohl(skb->h.icmph->un.gateway) >> 24;
+ n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
if (n < hlen)
return 0;
return 0;
case ICMP_FRAG_NEEDED:
/* And it is the only really necessary thing :-) */
- n = ntohs(skb->h.icmph->un.frag.mtu);
+ n = ntohs(icmp_hdr(skb)->un.frag.mtu);
if (n < hlen+68)
return 0;
n -= hlen;
dst_release(skb2->dst);
skb2->dst = NULL;
skb_pull(skb2, skb->data - (u8*)eiph);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
/* Try to guess incoming interface */
memset(&fl, 0, sizeof(fl));
#endif
}
-static inline void ipip_ecn_decapsulate(struct iphdr *outer_iph, struct sk_buff *skb)
+static inline void ipip_ecn_decapsulate(const struct iphdr *outer_iph,
+ struct sk_buff *skb)
{
- struct iphdr *inner_iph = skb->nh.iph;
+ struct iphdr *inner_iph = ip_hdr(skb);
if (INET_ECN_is_ce(outer_iph->tos))
IP_ECN_set_ce(inner_iph);
static int ipip_rcv(struct sk_buff *skb)
{
- struct iphdr *iph;
struct ip_tunnel *tunnel;
-
- iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
read_lock(&ipip_lock);
if ((tunnel = ipip_tunnel_lookup(iph->saddr, iph->daddr)) != NULL) {
secpath_reset(skb);
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = skb->data;
+ skb->mac_header = skb->network_header;
+ skb_reset_network_header(skb);
skb->protocol = htons(ETH_P_IP);
skb->pkt_type = PACKET_HOST;
__be16 df = tiph->frag_off;
struct rtable *rt; /* Route to the other host */
struct net_device *tdev; /* Device to other host */
- struct iphdr *old_iph = skb->nh.iph;
+ struct iphdr *old_iph = ip_hdr(skb);
struct iphdr *iph; /* Our new IP header */
int max_headroom; /* The extra header space needed */
__be32 dst = tiph->daddr;
skb_set_owner_w(new_skb, skb->sk);
dev_kfree_skb(skb);
skb = new_skb;
- old_iph = skb->nh.iph;
+ old_iph = ip_hdr(skb);
}
- skb->h.raw = skb->nh.raw;
- skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
+ skb->transport_header = skb->network_header;
+ skb_push(skb, sizeof(struct iphdr));
+ skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
IPSKB_REROUTED);
* Push down and install the IPIP header.
*/
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = sizeof(struct iphdr)>>2;
iph->frag_off = df;
#include <linux/netfilter_ipv4.h>
#include <net/ipip.h>
#include <net/checksum.h>
+#include <net/netlink.h>
#if defined(CONFIG_IP_PIMSM_V1) || defined(CONFIG_IP_PIMSM_V2)
#define CONFIG_IP_PIMSM 1
atomic_dec(&cache_resolve_queue_len);
- while((skb=skb_dequeue(&c->mfc_un.unres.unresolved))) {
- if (skb->nh.iph->version == 0) {
+ while ((skb=skb_dequeue(&c->mfc_un.unres.unresolved))) {
+ if (ip_hdr(skb)->version == 0) {
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
nlh->nlmsg_type = NLMSG_ERROR;
nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
static struct mfc_cache *ipmr_cache_alloc(void)
{
struct mfc_cache *c=kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
- if(c==NULL)
+ if (c==NULL)
return NULL;
c->mfc_un.res.minvif = MAXVIFS;
return c;
static struct mfc_cache *ipmr_cache_alloc_unres(void)
{
struct mfc_cache *c=kmem_cache_zalloc(mrt_cachep, GFP_ATOMIC);
- if(c==NULL)
+ if (c==NULL)
return NULL;
skb_queue_head_init(&c->mfc_un.unres.unresolved);
c->mfc_un.unres.expires = jiffies + 10*HZ;
* Play the pending entries through our router
*/
- while((skb=__skb_dequeue(&uc->mfc_un.unres.unresolved))) {
- if (skb->nh.iph->version == 0) {
+ while ((skb=__skb_dequeue(&uc->mfc_un.unres.unresolved))) {
+ if (ip_hdr(skb)->version == 0) {
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
if (ipmr_fill_mroute(skb, c, NLMSG_DATA(nlh)) > 0) {
- nlh->nlmsg_len = skb->tail - (u8*)nlh;
+ nlh->nlmsg_len = (skb_tail_pointer(skb) -
+ (u8 *)nlh);
} else {
nlh->nlmsg_type = NLMSG_ERROR;
nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct nlmsgerr));
static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
{
struct sk_buff *skb;
- int ihl = pkt->nh.iph->ihl<<2;
+ const int ihl = ip_hdrlen(pkt);
struct igmphdr *igmp;
struct igmpmsg *msg;
int ret;
#endif
skb = alloc_skb(128, GFP_ATOMIC);
- if(!skb)
+ if (!skb)
return -ENOBUFS;
#ifdef CONFIG_IP_PIMSM
And all this only to mangle msg->im_msgtype and
to set msg->im_mbz to "mbz" :-)
*/
- msg = (struct igmpmsg*)skb_push(skb, sizeof(struct iphdr));
- skb->nh.raw = skb->h.raw = (u8*)msg;
- memcpy(msg, pkt->nh.raw, sizeof(struct iphdr));
+ skb_push(skb, sizeof(struct iphdr));
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ msg = (struct igmpmsg *)skb_network_header(skb);
+ memcpy(msg, skb_network_header(pkt), sizeof(struct iphdr));
msg->im_msgtype = IGMPMSG_WHOLEPKT;
msg->im_mbz = 0;
msg->im_vif = reg_vif_num;
- skb->nh.iph->ihl = sizeof(struct iphdr) >> 2;
- skb->nh.iph->tot_len = htons(ntohs(pkt->nh.iph->tot_len) + sizeof(struct iphdr));
+ ip_hdr(skb)->ihl = sizeof(struct iphdr) >> 2;
+ ip_hdr(skb)->tot_len = htons(ntohs(ip_hdr(pkt)->tot_len) +
+ sizeof(struct iphdr));
} else
#endif
{
* Copy the IP header
*/
- skb->nh.iph = (struct iphdr *)skb_put(skb, ihl);
- memcpy(skb->data,pkt->data,ihl);
- skb->nh.iph->protocol = 0; /* Flag to the kernel this is a route add */
- msg = (struct igmpmsg*)skb->nh.iph;
+ skb->network_header = skb->tail;
+ skb_put(skb, ihl);
+ skb_copy_to_linear_data(skb, pkt->data, ihl);
+ ip_hdr(skb)->protocol = 0; /* Flag to the kernel this is a route add */
+ msg = (struct igmpmsg *)skb_network_header(skb);
msg->im_vif = vifi;
skb->dst = dst_clone(pkt->dst);
igmp->type =
msg->im_msgtype = assert;
igmp->code = 0;
- skb->nh.iph->tot_len=htons(skb->len); /* Fix the length */
- skb->h.raw = skb->nh.raw;
+ ip_hdr(skb)->tot_len = htons(skb->len); /* Fix the length */
+ skb->transport_header = skb->network_header;
}
if (mroute_socket == NULL) {
{
int err;
struct mfc_cache *c;
+ const struct iphdr *iph = ip_hdr(skb);
spin_lock_bh(&mfc_unres_lock);
for (c=mfc_unres_queue; c; c=c->next) {
- if (c->mfc_mcastgrp == skb->nh.iph->daddr &&
- c->mfc_origin == skb->nh.iph->saddr)
+ if (c->mfc_mcastgrp == iph->daddr &&
+ c->mfc_origin == iph->saddr)
break;
}
/*
* Fill in the new cache entry
*/
- c->mfc_parent=-1;
- c->mfc_origin=skb->nh.iph->saddr;
- c->mfc_mcastgrp=skb->nh.iph->daddr;
+ c->mfc_parent = -1;
+ c->mfc_origin = iph->saddr;
+ c->mfc_mcastgrp = iph->daddr;
/*
* Reflect first query at mrouted.
return 0;
}
- if(!MULTICAST(mfc->mfcc_mcastgrp.s_addr))
+ if (!MULTICAST(mfc->mfcc_mcastgrp.s_addr))
return -EINVAL;
c=ipmr_cache_alloc();
/*
* Shut down all active vif entries
*/
- for(i=0; i<maxvif; i++) {
+ for (i=0; i<maxvif; i++) {
if (!(vif_table[i].flags&VIFF_STATIC))
vif_delete(i);
}
struct vifctl vif;
struct mfcctl mfc;
- if(optname!=MRT_INIT)
- {
- if(sk!=mroute_socket && !capable(CAP_NET_ADMIN))
+ if (optname != MRT_INIT) {
+ if (sk != mroute_socket && !capable(CAP_NET_ADMIN))
return -EACCES;
}
- switch(optname)
- {
- case MRT_INIT:
- if (sk->sk_type != SOCK_RAW ||
- inet_sk(sk)->num != IPPROTO_IGMP)
- return -EOPNOTSUPP;
- if(optlen!=sizeof(int))
- return -ENOPROTOOPT;
-
- rtnl_lock();
- if (mroute_socket) {
- rtnl_unlock();
- return -EADDRINUSE;
- }
-
- ret = ip_ra_control(sk, 1, mrtsock_destruct);
- if (ret == 0) {
- write_lock_bh(&mrt_lock);
- mroute_socket=sk;
- write_unlock_bh(&mrt_lock);
+ switch (optname) {
+ case MRT_INIT:
+ if (sk->sk_type != SOCK_RAW ||
+ inet_sk(sk)->num != IPPROTO_IGMP)
+ return -EOPNOTSUPP;
+ if (optlen!=sizeof(int))
+ return -ENOPROTOOPT;
- ipv4_devconf.mc_forwarding++;
- }
+ rtnl_lock();
+ if (mroute_socket) {
rtnl_unlock();
- return ret;
- case MRT_DONE:
- if (sk!=mroute_socket)
- return -EACCES;
- return ip_ra_control(sk, 0, NULL);
- case MRT_ADD_VIF:
- case MRT_DEL_VIF:
- if(optlen!=sizeof(vif))
- return -EINVAL;
- if (copy_from_user(&vif,optval,sizeof(vif)))
- return -EFAULT;
- if(vif.vifc_vifi >= MAXVIFS)
- return -ENFILE;
- rtnl_lock();
- if (optname==MRT_ADD_VIF) {
- ret = vif_add(&vif, sk==mroute_socket);
- } else {
- ret = vif_delete(vif.vifc_vifi);
- }
- rtnl_unlock();
- return ret;
+ return -EADDRINUSE;
+ }
+
+ ret = ip_ra_control(sk, 1, mrtsock_destruct);
+ if (ret == 0) {
+ write_lock_bh(&mrt_lock);
+ mroute_socket=sk;
+ write_unlock_bh(&mrt_lock);
+
+ ipv4_devconf.mc_forwarding++;
+ }
+ rtnl_unlock();
+ return ret;
+ case MRT_DONE:
+ if (sk!=mroute_socket)
+ return -EACCES;
+ return ip_ra_control(sk, 0, NULL);
+ case MRT_ADD_VIF:
+ case MRT_DEL_VIF:
+ if (optlen!=sizeof(vif))
+ return -EINVAL;
+ if (copy_from_user(&vif,optval,sizeof(vif)))
+ return -EFAULT;
+ if (vif.vifc_vifi >= MAXVIFS)
+ return -ENFILE;
+ rtnl_lock();
+ if (optname==MRT_ADD_VIF) {
+ ret = vif_add(&vif, sk==mroute_socket);
+ } else {
+ ret = vif_delete(vif.vifc_vifi);
+ }
+ rtnl_unlock();
+ return ret;
/*
* Manipulate the forwarding caches. These live
* in a sort of kernel/user symbiosis.
*/
- case MRT_ADD_MFC:
- case MRT_DEL_MFC:
- if(optlen!=sizeof(mfc))
- return -EINVAL;
- if (copy_from_user(&mfc,optval, sizeof(mfc)))
- return -EFAULT;
- rtnl_lock();
- if (optname==MRT_DEL_MFC)
- ret = ipmr_mfc_delete(&mfc);
- else
- ret = ipmr_mfc_add(&mfc, sk==mroute_socket);
- rtnl_unlock();
- return ret;
+ case MRT_ADD_MFC:
+ case MRT_DEL_MFC:
+ if (optlen!=sizeof(mfc))
+ return -EINVAL;
+ if (copy_from_user(&mfc,optval, sizeof(mfc)))
+ return -EFAULT;
+ rtnl_lock();
+ if (optname==MRT_DEL_MFC)
+ ret = ipmr_mfc_delete(&mfc);
+ else
+ ret = ipmr_mfc_add(&mfc, sk==mroute_socket);
+ rtnl_unlock();
+ return ret;
/*
* Control PIM assert.
*/
- case MRT_ASSERT:
- {
- int v;
- if(get_user(v,(int __user *)optval))
- return -EFAULT;
- mroute_do_assert=(v)?1:0;
- return 0;
- }
+ case MRT_ASSERT:
+ {
+ int v;
+ if (get_user(v,(int __user *)optval))
+ return -EFAULT;
+ mroute_do_assert=(v)?1:0;
+ return 0;
+ }
#ifdef CONFIG_IP_PIMSM
- case MRT_PIM:
- {
- int v, ret;
- if(get_user(v,(int __user *)optval))
- return -EFAULT;
- v = (v)?1:0;
- rtnl_lock();
- ret = 0;
- if (v != mroute_do_pim) {
- mroute_do_pim = v;
- mroute_do_assert = v;
+ case MRT_PIM:
+ {
+ int v, ret;
+ if (get_user(v,(int __user *)optval))
+ return -EFAULT;
+ v = (v)?1:0;
+ rtnl_lock();
+ ret = 0;
+ if (v != mroute_do_pim) {
+ mroute_do_pim = v;
+ mroute_do_assert = v;
#ifdef CONFIG_IP_PIMSM_V2
- if (mroute_do_pim)
- ret = inet_add_protocol(&pim_protocol,
- IPPROTO_PIM);
- else
- ret = inet_del_protocol(&pim_protocol,
- IPPROTO_PIM);
- if (ret < 0)
- ret = -EAGAIN;
+ if (mroute_do_pim)
+ ret = inet_add_protocol(&pim_protocol,
+ IPPROTO_PIM);
+ else
+ ret = inet_del_protocol(&pim_protocol,
+ IPPROTO_PIM);
+ if (ret < 0)
+ ret = -EAGAIN;
#endif
- }
- rtnl_unlock();
- return ret;
}
+ rtnl_unlock();
+ return ret;
+ }
#endif
- /*
- * Spurious command, or MRT_VERSION which you cannot
- * set.
- */
- default:
- return -ENOPROTOOPT;
+ /*
+ * Spurious command, or MRT_VERSION which you cannot
+ * set.
+ */
+ default:
+ return -ENOPROTOOPT;
}
}
int olr;
int val;
- if(optname!=MRT_VERSION &&
+ if (optname!=MRT_VERSION &&
#ifdef CONFIG_IP_PIMSM
optname!=MRT_PIM &&
#endif
if (olr < 0)
return -EINVAL;
- if(put_user(olr,optlen))
+ if (put_user(olr,optlen))
return -EFAULT;
- if(optname==MRT_VERSION)
+ if (optname==MRT_VERSION)
val=0x0305;
#ifdef CONFIG_IP_PIMSM
- else if(optname==MRT_PIM)
+ else if (optname==MRT_PIM)
val=mroute_do_pim;
#endif
else
val=mroute_do_assert;
- if(copy_to_user(optval,&val,olr))
+ if (copy_to_user(optval,&val,olr))
return -EFAULT;
return 0;
}
struct vif_device *vif;
struct mfc_cache *c;
- switch(cmd)
- {
- case SIOCGETVIFCNT:
- if (copy_from_user(&vr,arg,sizeof(vr)))
- return -EFAULT;
- if(vr.vifi>=maxvif)
- return -EINVAL;
- read_lock(&mrt_lock);
- vif=&vif_table[vr.vifi];
- if(VIF_EXISTS(vr.vifi)) {
- vr.icount=vif->pkt_in;
- vr.ocount=vif->pkt_out;
- vr.ibytes=vif->bytes_in;
- vr.obytes=vif->bytes_out;
- read_unlock(&mrt_lock);
-
- if (copy_to_user(arg,&vr,sizeof(vr)))
- return -EFAULT;
- return 0;
- }
+ switch (cmd) {
+ case SIOCGETVIFCNT:
+ if (copy_from_user(&vr,arg,sizeof(vr)))
+ return -EFAULT;
+ if (vr.vifi>=maxvif)
+ return -EINVAL;
+ read_lock(&mrt_lock);
+ vif=&vif_table[vr.vifi];
+ if (VIF_EXISTS(vr.vifi)) {
+ vr.icount=vif->pkt_in;
+ vr.ocount=vif->pkt_out;
+ vr.ibytes=vif->bytes_in;
+ vr.obytes=vif->bytes_out;
read_unlock(&mrt_lock);
- return -EADDRNOTAVAIL;
- case SIOCGETSGCNT:
- if (copy_from_user(&sr,arg,sizeof(sr)))
- return -EFAULT;
- read_lock(&mrt_lock);
- c = ipmr_cache_find(sr.src.s_addr, sr.grp.s_addr);
- if (c) {
- sr.pktcnt = c->mfc_un.res.pkt;
- sr.bytecnt = c->mfc_un.res.bytes;
- sr.wrong_if = c->mfc_un.res.wrong_if;
- read_unlock(&mrt_lock);
-
- if (copy_to_user(arg,&sr,sizeof(sr)))
- return -EFAULT;
- return 0;
- }
+ if (copy_to_user(arg,&vr,sizeof(vr)))
+ return -EFAULT;
+ return 0;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
+ case SIOCGETSGCNT:
+ if (copy_from_user(&sr,arg,sizeof(sr)))
+ return -EFAULT;
+
+ read_lock(&mrt_lock);
+ c = ipmr_cache_find(sr.src.s_addr, sr.grp.s_addr);
+ if (c) {
+ sr.pktcnt = c->mfc_un.res.pkt;
+ sr.bytecnt = c->mfc_un.res.bytes;
+ sr.wrong_if = c->mfc_un.res.wrong_if;
read_unlock(&mrt_lock);
- return -EADDRNOTAVAIL;
- default:
- return -ENOIOCTLCMD;
+
+ if (copy_to_user(arg,&sr,sizeof(sr)))
+ return -EFAULT;
+ return 0;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
+ default:
+ return -ENOIOCTLCMD;
}
}
if (event != NETDEV_UNREGISTER)
return NOTIFY_DONE;
v=&vif_table[0];
- for(ct=0;ct<maxvif;ct++,v++) {
+ for (ct=0;ct<maxvif;ct++,v++) {
if (v->dev==ptr)
vif_delete(ct);
}
static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
{
- struct iphdr *iph = (struct iphdr *)skb_push(skb,sizeof(struct iphdr));
+ struct iphdr *iph;
+ struct iphdr *old_iph = ip_hdr(skb);
+
+ skb_push(skb, sizeof(struct iphdr));
+ skb->transport_header = skb->network_header;
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
iph->version = 4;
- iph->tos = skb->nh.iph->tos;
- iph->ttl = skb->nh.iph->ttl;
+ iph->tos = old_iph->tos;
+ iph->ttl = old_iph->ttl;
iph->frag_off = 0;
iph->daddr = daddr;
iph->saddr = saddr;
ip_select_ident(iph, skb->dst, NULL);
ip_send_check(iph);
- skb->h.ipiph = skb->nh.iph;
- skb->nh.iph = iph;
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
nf_reset(skb);
}
static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi)
{
- struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
struct vif_device *vif = &vif_table[vifi];
struct net_device *dev;
struct rtable *rt;
dst_release(skb->dst);
skb->dst = &rt->u.dst;
- iph = skb->nh.iph;
- ip_decrease_ttl(iph);
+ ip_decrease_ttl(ip_hdr(skb));
/* FIXME: forward and output firewalls used to be called here.
* What do we do with netfilter? -- RR */
* Forward the frame
*/
for (ct = cache->mfc_un.res.maxvif-1; ct >= cache->mfc_un.res.minvif; ct--) {
- if (skb->nh.iph->ttl > cache->mfc_un.res.ttls[ct]) {
+ if (ip_hdr(skb)->ttl > cache->mfc_un.res.ttls[ct]) {
if (psend != -1) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (skb2)
if (IPCB(skb)->opt.router_alert) {
if (ip_call_ra_chain(skb))
return 0;
- } else if (skb->nh.iph->protocol == IPPROTO_IGMP){
+ } else if (ip_hdr(skb)->protocol == IPPROTO_IGMP){
/* IGMPv1 (and broken IGMPv2 implementations sort of
Cisco IOS <= 11.2(8)) do not put router alert
option to IGMP packets destined to routable
}
read_lock(&mrt_lock);
- cache = ipmr_cache_find(skb->nh.iph->saddr, skb->nh.iph->daddr);
+ cache = ipmr_cache_find(ip_hdr(skb)->saddr, ip_hdr(skb)->daddr);
/*
* No usable cache entry
if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
goto drop;
- pim = (struct igmphdr*)skb->h.raw;
+ pim = igmp_hdr(skb);
if (!mroute_do_pim ||
skb->len < sizeof(*pim) + sizeof(*encap) ||
pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
goto drop;
- encap = (struct iphdr*)(skb->h.raw + sizeof(struct igmphdr));
+ encap = (struct iphdr *)(skb_transport_header(skb) +
+ sizeof(struct igmphdr));
/*
Check that:
a. packet is really destinted to a multicast group
if (reg_dev == NULL)
goto drop;
- skb->mac.raw = skb->nh.raw;
+ skb->mac_header = skb->network_header;
skb_pull(skb, (u8*)encap - skb->data);
- skb->nh.iph = (struct iphdr *)skb->data;
+ skb_reset_network_header(skb);
skb->dev = reg_dev;
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
goto drop;
- pim = (struct pimreghdr*)skb->h.raw;
+ pim = (struct pimreghdr *)skb_transport_header(skb);
if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) ||
(pim->flags&PIM_NULL_REGISTER) ||
(ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
goto drop;
/* check if the inner packet is destined to mcast group */
- encap = (struct iphdr*)(skb->h.raw + sizeof(struct pimreghdr));
+ encap = (struct iphdr *)(skb_transport_header(skb) +
+ sizeof(struct pimreghdr));
if (!MULTICAST(encap->daddr) ||
encap->tot_len == 0 ||
ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
if (reg_dev == NULL)
goto drop;
- skb->mac.raw = skb->nh.raw;
+ skb->mac_header = skb->network_header;
skb_pull(skb, (u8*)encap - skb->data);
- skb->nh.iph = (struct iphdr *)skb->data;
+ skb_reset_network_header(skb);
skb->dev = reg_dev;
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
int ct;
struct rtnexthop *nhp;
struct net_device *dev = vif_table[c->mfc_parent].dev;
- u8 *b = skb->tail;
+ u8 *b = skb_tail_pointer(skb);
struct rtattr *mp_head;
if (dev)
}
}
mp_head->rta_type = RTA_MULTIPATH;
- mp_head->rta_len = skb->tail - (u8*)mp_head;
+ mp_head->rta_len = skb_tail_pointer(skb) - (u8 *)mp_head;
rtm->rtm_type = RTN_MULTICAST;
return 1;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -EMSGSIZE;
}
if (cache==NULL) {
struct sk_buff *skb2;
+ struct iphdr *iph;
struct net_device *dev;
int vif;
return -ENOMEM;
}
- skb2->nh.raw = skb_push(skb2, sizeof(struct iphdr));
- skb2->nh.iph->ihl = sizeof(struct iphdr)>>2;
- skb2->nh.iph->saddr = rt->rt_src;
- skb2->nh.iph->daddr = rt->rt_dst;
- skb2->nh.iph->version = 0;
+ skb_push(skb2, sizeof(struct iphdr));
+ skb_reset_network_header(skb2);
+ iph = ip_hdr(skb2);
+ iph->ihl = sizeof(struct iphdr) >> 2;
+ iph->saddr = rt->rt_src;
+ iph->daddr = rt->rt_dst;
+ iph->version = 0;
err = ipmr_cache_unresolved(vif, skb2);
read_unlock(&mrt_lock);
return err;
loff_t pos)
{
for (iter->ct = 0; iter->ct < maxvif; ++iter->ct) {
- if(!VIF_EXISTS(iter->ct))
+ if (!VIF_EXISTS(iter->ct))
continue;
if (pos-- == 0)
return &vif_table[iter->ct];
return ipmr_vif_seq_idx(iter, 0);
while (++iter->ct < maxvif) {
- if(!VIF_EXISTS(iter->ct))
+ if (!VIF_EXISTS(iter->ct))
continue;
return &vif_table[iter->ct];
}
return 0;
}
-static struct seq_operations ipmr_vif_seq_ops = {
+static const struct seq_operations ipmr_vif_seq_ops = {
.start = ipmr_vif_seq_start,
.next = ipmr_vif_seq_next,
.stop = ipmr_vif_seq_stop,
it->cache = mfc_cache_array;
read_lock(&mrt_lock);
for (it->ct = 0; it->ct < MFC_LINES; it->ct++)
- for(mfc = mfc_cache_array[it->ct]; mfc; mfc = mfc->next)
+ for (mfc = mfc_cache_array[it->ct]; mfc; mfc = mfc->next)
if (pos-- == 0)
return mfc;
read_unlock(&mrt_lock);
it->cache = &mfc_unres_queue;
spin_lock_bh(&mfc_unres_lock);
- for(mfc = mfc_unres_queue; mfc; mfc = mfc->next)
+ for (mfc = mfc_unres_queue; mfc; mfc = mfc->next)
if (pos-- == 0)
return mfc;
spin_unlock_bh(&mfc_unres_lock);
mfc->mfc_un.res.wrong_if);
if (it->cache != &mfc_unres_queue) {
- for(n = mfc->mfc_un.res.minvif;
- n < mfc->mfc_un.res.maxvif; n++ ) {
- if(VIF_EXISTS(n)
+ for (n = mfc->mfc_un.res.minvif;
+ n < mfc->mfc_un.res.maxvif; n++ ) {
+ if (VIF_EXISTS(n)
&& mfc->mfc_un.res.ttls[n] < 255)
seq_printf(seq,
" %2d:%-3d",
return 0;
}
-static struct seq_operations ipmr_mfc_seq_ops = {
+static const struct seq_operations ipmr_mfc_seq_ops = {
.start = ipmr_mfc_seq_start,
.next = ipmr_mfc_seq_next,
.stop = ipmr_mfc_seq_stop,
struct ip_vs_app *app)
{
int diff;
- unsigned int tcp_offset = (*pskb)->nh.iph->ihl*4;
+ const unsigned int tcp_offset = ip_hdrlen(*pskb);
struct tcphdr *th;
__u32 seq;
if (!ip_vs_make_skb_writable(pskb, tcp_offset + sizeof(*th)))
return 0;
- th = (struct tcphdr *)((*pskb)->nh.raw + tcp_offset);
+ th = (struct tcphdr *)(skb_network_header(*pskb) + tcp_offset);
/*
* Remember seq number in case this pkt gets resized
struct ip_vs_app *app)
{
int diff;
- unsigned int tcp_offset = (*pskb)->nh.iph->ihl*4;
+ const unsigned int tcp_offset = ip_hdrlen(*pskb);
struct tcphdr *th;
__u32 seq;
if (!ip_vs_make_skb_writable(pskb, tcp_offset + sizeof(*th)))
return 0;
- th = (struct tcphdr *)((*pskb)->nh.raw + tcp_offset);
+ th = (struct tcphdr *)(skb_network_header(*pskb) + tcp_offset);
/*
* Remember seq number in case this pkt gets resized
int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
char *o_buf, int o_len, char *n_buf, int n_len)
{
- struct iphdr *iph;
int diff;
int o_offset;
int o_left;
skb_put(skb, diff);
memmove(skb->data + o_offset + n_len,
skb->data + o_offset + o_len, o_left);
- memcpy(skb->data + o_offset, n_buf, n_len);
+ skb_copy_to_linear_data_offset(skb, o_offset, n_buf, n_len);
}
/* must update the iph total length here */
- iph = skb->nh.iph;
- iph->tot_len = htons(skb->len);
+ ip_hdr(skb)->tot_len = htons(skb->len);
LeaveFunction(9);
return 0;
__be16 ports[2])
{
struct ip_vs_conn *cp = NULL;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
struct ip_vs_dest *dest;
struct ip_vs_conn *ct;
__be16 dport; /* destination port to forward */
ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_conn *cp = NULL;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
struct ip_vs_dest *dest;
__be16 _ports[2], *pptr;
struct ip_vs_protocol *pp)
{
__be16 _ports[2], *pptr;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
pptr = skb_header_pointer(skb, iph->ihl*4,
sizeof(_ports), _ports);
{
skb = ip_defrag(skb, user);
if (skb)
- ip_send_check(skb->nh.iph);
+ ip_send_check(ip_hdr(skb));
return skb;
}
void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp, int inout)
{
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
unsigned int icmp_offset = iph->ihl*4;
- struct icmphdr *icmph = (struct icmphdr *)(skb->nh.raw + icmp_offset);
+ struct icmphdr *icmph = (struct icmphdr *)(skb_network_header(skb) +
+ icmp_offset);
struct iphdr *ciph = (struct iphdr *)(icmph + 1);
if (inout) {
*related = 1;
/* reassemble IP fragments */
- if (skb->nh.iph->frag_off & __constant_htons(IP_MF|IP_OFFSET)) {
+ if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
skb = ip_vs_gather_frags(skb, IP_DEFRAG_VS_OUT);
if (!skb)
return NF_STOLEN;
*pskb = skb;
}
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
offset = ihl = iph->ihl * 4;
ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
if (ic == NULL)
return NF_ACCEPT;
/* Is the embedded protocol header present? */
- if (unlikely(cih->frag_off & __constant_htons(IP_OFFSET) &&
+ if (unlikely(cih->frag_off & htons(IP_OFFSET) &&
pp->dont_defrag))
return NF_ACCEPT;
}
/* Ensure the checksum is correct */
- if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
- ip_vs_checksum_complete(skb, ihl)) {
+ if (!skb_csum_unnecessary(skb) && ip_vs_checksum_complete(skb, ihl)) {
/* Failed checksum! */
IP_VS_DBG(1, "Forward ICMP: failed checksum from %d.%d.%d.%d!\n",
NIPQUAD(iph->saddr));
{
struct tcphdr _tcph, *th;
- th = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
- sizeof(_tcph), &_tcph);
+ th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
if (th == NULL)
return 0;
return th->rst;
if (skb->ipvs_property)
return NF_ACCEPT;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (unlikely(iph->protocol == IPPROTO_ICMP)) {
int related, verdict = ip_vs_out_icmp(pskb, &related);
if (related)
return verdict;
skb = *pskb;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
}
pp = ip_vs_proto_get(iph->protocol);
return NF_ACCEPT;
/* reassemble IP fragments */
- if (unlikely(iph->frag_off & __constant_htons(IP_MF|IP_OFFSET) &&
+ if (unlikely(iph->frag_off & htons(IP_MF|IP_OFFSET) &&
!pp->dont_defrag)) {
skb = ip_vs_gather_frags(skb, IP_DEFRAG_VS_OUT);
if (!skb)
return NF_STOLEN;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
*pskb = skb;
}
if (pp->snat_handler && !pp->snat_handler(pskb, pp, cp))
goto drop;
skb = *pskb;
- skb->nh.iph->saddr = cp->vaddr;
- ip_send_check(skb->nh.iph);
+ ip_hdr(skb)->saddr = cp->vaddr;
+ ip_send_check(ip_hdr(skb));
/* For policy routing, packets originating from this
* machine itself may be routed differently to packets
*related = 1;
/* reassemble IP fragments */
- if (skb->nh.iph->frag_off & __constant_htons(IP_MF|IP_OFFSET)) {
+ if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
skb = ip_vs_gather_frags(skb,
hooknum == NF_IP_LOCAL_IN ?
IP_DEFRAG_VS_IN : IP_DEFRAG_VS_FWD);
*pskb = skb;
}
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
offset = ihl = iph->ihl * 4;
ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
if (ic == NULL)
return NF_ACCEPT;
/* Is the embedded protocol header present? */
- if (unlikely(cih->frag_off & __constant_htons(IP_OFFSET) &&
+ if (unlikely(cih->frag_off & htons(IP_OFFSET) &&
pp->dont_defrag))
return NF_ACCEPT;
verdict = NF_DROP;
/* Ensure the checksum is correct */
- if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
- ip_vs_checksum_complete(skb, ihl)) {
+ if (!skb_csum_unnecessary(skb) && ip_vs_checksum_complete(skb, ihl)) {
/* Failed checksum! */
IP_VS_DBG(1, "Incoming ICMP: failed checksum from %d.%d.%d.%d!\n",
NIPQUAD(iph->saddr));
|| skb->dev == &loopback_dev || skb->sk)) {
IP_VS_DBG(12, "packet type=%d proto=%d daddr=%d.%d.%d.%d ignored\n",
skb->pkt_type,
- skb->nh.iph->protocol,
- NIPQUAD(skb->nh.iph->daddr));
+ ip_hdr(skb)->protocol,
+ NIPQUAD(ip_hdr(skb)->daddr));
return NF_ACCEPT;
}
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (unlikely(iph->protocol == IPPROTO_ICMP)) {
int related, verdict = ip_vs_in_icmp(pskb, &related, hooknum);
if (related)
return verdict;
skb = *pskb;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
}
/* Protocol supported? */
{
int r;
- if ((*pskb)->nh.iph->protocol != IPPROTO_ICMP)
+ if (ip_hdr(*pskb)->protocol != IPPROTO_ICMP)
return NF_ACCEPT;
return ip_vs_in_icmp(pskb, &r, hooknum);
{
struct ip_vs_dest *dest;
struct ip_vs_dh_bucket *tbl;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_dh_schedule(): Scheduling...\n");
return 0;
if (cp->app_data == &ip_vs_ftp_pasv) {
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
th = (struct tcphdr *)&(((char *)iph)[iph->ihl*4]);
data = (char *)th + (th->doff << 2);
- data_limit = (*pskb)->tail;
+ data_limit = skb_tail_pointer(*pskb);
if (ip_vs_ftp_get_addrport(data, data_limit,
SERVER_STRING,
/*
* Detecting whether it is passive
*/
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
th = (struct tcphdr *)&(((char *)iph)[iph->ihl*4]);
/* Since there may be OPTIONS in the TCP packet and the HLEN is
the length of the header in 32-bit multiples, it is accurate
to calculate data address by th+HLEN*4 */
data = data_start = (char *)th + (th->doff << 2);
- data_limit = (*pskb)->tail;
+ data_limit = skb_tail_pointer(*pskb);
while (data <= data_limit - 6) {
if (strnicmp(data, "PASV\r\n", 6) == 0) {
struct ip_vs_dest *dest;
struct ip_vs_lblc_table *tbl;
struct ip_vs_lblc_entry *en;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_lblc_schedule(): Scheduling...\n");
struct ip_vs_dest *dest;
struct ip_vs_lblcr_table *tbl;
struct ip_vs_lblcr_entry *en;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_lblcr_schedule(): Scheduling...\n");
if (likely(!inverse)) {
cp = ip_vs_conn_in_get(IPPROTO_UDP,
iph->saddr,
- __constant_htons(PORT_ISAKMP),
+ htons(PORT_ISAKMP),
iph->daddr,
- __constant_htons(PORT_ISAKMP));
+ htons(PORT_ISAKMP));
} else {
cp = ip_vs_conn_in_get(IPPROTO_UDP,
iph->daddr,
- __constant_htons(PORT_ISAKMP),
+ htons(PORT_ISAKMP),
iph->saddr,
- __constant_htons(PORT_ISAKMP));
+ htons(PORT_ISAKMP));
}
if (!cp) {
if (likely(!inverse)) {
cp = ip_vs_conn_out_get(IPPROTO_UDP,
iph->saddr,
- __constant_htons(PORT_ISAKMP),
+ htons(PORT_ISAKMP),
iph->daddr,
- __constant_htons(PORT_ISAKMP));
+ htons(PORT_ISAKMP));
} else {
cp = ip_vs_conn_out_get(IPPROTO_UDP,
iph->daddr,
- __constant_htons(PORT_ISAKMP),
+ htons(PORT_ISAKMP),
iph->saddr,
- __constant_htons(PORT_ISAKMP));
+ htons(PORT_ISAKMP));
}
if (!cp) {
struct ip_vs_service *svc;
struct tcphdr _tcph, *th;
- th = skb_header_pointer(skb, skb->nh.iph->ihl*4,
- sizeof(_tcph), &_tcph);
+ th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
if (th == NULL) {
*verdict = NF_DROP;
return 0;
}
if (th->syn &&
- (svc = ip_vs_service_get(skb->mark, skb->nh.iph->protocol,
- skb->nh.iph->daddr, th->dest))) {
+ (svc = ip_vs_service_get(skb->mark, ip_hdr(skb)->protocol,
+ ip_hdr(skb)->daddr, th->dest))) {
if (ip_vs_todrop()) {
/*
* It seems that we are very loaded.
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
struct tcphdr *tcph;
- unsigned int tcphoff = (*pskb)->nh.iph->ihl * 4;
+ const unsigned int tcphoff = ip_hdrlen(*pskb);
/* csum_check requires unshared skb */
if (!ip_vs_make_skb_writable(pskb, tcphoff+sizeof(*tcph)))
return 0;
}
- tcph = (void *)(*pskb)->nh.iph + tcphoff;
+ tcph = (void *)ip_hdr(*pskb) + tcphoff;
tcph->source = cp->vport;
/* Adjust TCP checksums */
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
struct tcphdr *tcph;
- unsigned int tcphoff = (*pskb)->nh.iph->ihl * 4;
+ const unsigned int tcphoff = ip_hdrlen(*pskb);
/* csum_check requires unshared skb */
if (!ip_vs_make_skb_writable(pskb, tcphoff+sizeof(*tcph)))
return 0;
}
- tcph = (void *)(*pskb)->nh.iph + tcphoff;
+ tcph = (void *)ip_hdr(*pskb) + tcphoff;
tcph->dest = cp->dport;
/*
static int
tcp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
{
- unsigned int tcphoff = skb->nh.iph->ihl*4;
+ const unsigned int tcphoff = ip_hdrlen(skb);
switch (skb->ip_summed) {
case CHECKSUM_NONE:
skb->csum = skb_checksum(skb, tcphoff, skb->len - tcphoff, 0);
case CHECKSUM_COMPLETE:
- if (csum_tcpudp_magic(skb->nh.iph->saddr, skb->nh.iph->daddr,
+ if (csum_tcpudp_magic(ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
skb->len - tcphoff,
- skb->nh.iph->protocol, skb->csum)) {
+ ip_hdr(skb)->protocol, skb->csum)) {
IP_VS_DBG_RL_PKT(0, pp, skb, 0,
"Failed checksum for");
return 0;
{
struct tcphdr _tcph, *th;
- th = skb_header_pointer(skb, skb->nh.iph->ihl*4,
- sizeof(_tcph), &_tcph);
+ th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
if (th == NULL)
return 0;
#include <linux/udp.h>
#include <net/ip_vs.h>
-
+#include <net/ip.h>
static struct ip_vs_conn *
udp_conn_in_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp;
__be16 _ports[2], *pptr;
- pptr = skb_header_pointer(skb, skb->nh.iph->ihl*4,
+ pptr = skb_header_pointer(skb, ip_hdrlen(skb),
sizeof(_ports), _ports);
if (pptr == NULL)
return NULL;
struct ip_vs_service *svc;
struct udphdr _udph, *uh;
- uh = skb_header_pointer(skb, skb->nh.iph->ihl*4,
+ uh = skb_header_pointer(skb, ip_hdrlen(skb),
sizeof(_udph), &_udph);
if (uh == NULL) {
*verdict = NF_DROP;
return 0;
}
- if ((svc = ip_vs_service_get(skb->mark, skb->nh.iph->protocol,
- skb->nh.iph->daddr, uh->dest))) {
+ if ((svc = ip_vs_service_get(skb->mark, ip_hdr(skb)->protocol,
+ ip_hdr(skb)->daddr, uh->dest))) {
if (ip_vs_todrop()) {
/*
* It seems that we are very loaded.
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
struct udphdr *udph;
- unsigned int udphoff = (*pskb)->nh.iph->ihl * 4;
+ const unsigned int udphoff = ip_hdrlen(*pskb);
/* csum_check requires unshared skb */
if (!ip_vs_make_skb_writable(pskb, udphoff+sizeof(*udph)))
return 0;
}
- udph = (void *)(*pskb)->nh.iph + udphoff;
+ udph = (void *)ip_hdr(*pskb) + udphoff;
udph->source = cp->vport;
/*
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
struct udphdr *udph;
- unsigned int udphoff = (*pskb)->nh.iph->ihl * 4;
+ unsigned int udphoff = ip_hdrlen(*pskb);
/* csum_check requires unshared skb */
if (!ip_vs_make_skb_writable(pskb, udphoff+sizeof(*udph)))
return 0;
}
- udph = (void *)(*pskb)->nh.iph + udphoff;
+ udph = (void *)ip_hdr(*pskb) + udphoff;
udph->dest = cp->dport;
/*
udp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
{
struct udphdr _udph, *uh;
- unsigned int udphoff = skb->nh.iph->ihl*4;
+ const unsigned int udphoff = ip_hdrlen(skb);
uh = skb_header_pointer(skb, udphoff, sizeof(_udph), &_udph);
if (uh == NULL)
skb->csum = skb_checksum(skb, udphoff,
skb->len - udphoff, 0);
case CHECKSUM_COMPLETE:
- if (csum_tcpudp_magic(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
+ if (csum_tcpudp_magic(ip_hdr(skb)->saddr,
+ ip_hdr(skb)->daddr,
skb->len - udphoff,
- skb->nh.iph->protocol,
+ ip_hdr(skb)->protocol,
skb->csum)) {
IP_VS_DBG_RL_PKT(0, pp, skb, 0,
"Failed checksum for");
{
struct ip_vs_dest *dest;
struct ip_vs_sh_bucket *tbl;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
struct ip_vs_protocol *pp)
{
struct rtable *rt; /* Route to the other host */
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
u8 tos = iph->tos;
int mtu;
struct flowi fl = {
/* MTU checking */
mtu = dst_mtu(&rt->u.dst);
- if ((skb->len > mtu) && (iph->frag_off&__constant_htons(IP_DF))) {
+ if ((skb->len > mtu) && (iph->frag_off & htons(IP_DF))) {
ip_rt_put(rt);
icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
IP_VS_DBG_RL("ip_vs_bypass_xmit(): frag needed\n");
ip_rt_put(rt);
return NF_STOLEN;
}
- ip_send_check(skb->nh.iph);
+ ip_send_check(ip_hdr(skb));
/* drop old route */
dst_release(skb->dst);
{
struct rtable *rt; /* Route to the other host */
int mtu;
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
EnterFunction(10);
/* MTU checking */
mtu = dst_mtu(&rt->u.dst);
- if ((skb->len > mtu) && (iph->frag_off&__constant_htons(IP_DF))) {
+ if ((skb->len > mtu) && (iph->frag_off & htons(IP_DF))) {
ip_rt_put(rt);
icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
IP_VS_DBG_RL_PKT(0, pp, skb, 0, "ip_vs_nat_xmit(): frag needed for");
/* mangle the packet */
if (pp->dnat_handler && !pp->dnat_handler(&skb, pp, cp))
goto tx_error;
- skb->nh.iph->daddr = cp->daddr;
- ip_send_check(skb->nh.iph);
+ ip_hdr(skb)->daddr = cp->daddr;
+ ip_send_check(ip_hdr(skb));
IP_VS_DBG_PKT(10, pp, skb, 0, "After DNAT");
{
struct rtable *rt; /* Route to the other host */
struct net_device *tdev; /* Device to other host */
- struct iphdr *old_iph = skb->nh.iph;
+ struct iphdr *old_iph = ip_hdr(skb);
u8 tos = old_iph->tos;
__be16 df = old_iph->frag_off;
+ sk_buff_data_t old_transport_header = skb->transport_header;
struct iphdr *iph; /* Our new IP header */
int max_headroom; /* The extra header space needed */
int mtu;
EnterFunction(10);
- if (skb->protocol != __constant_htons(ETH_P_IP)) {
+ if (skb->protocol != htons(ETH_P_IP)) {
IP_VS_DBG_RL("ip_vs_tunnel_xmit(): protocol error, "
"ETH_P_IP: %d, skb protocol: %d\n",
- __constant_htons(ETH_P_IP), skb->protocol);
+ htons(ETH_P_IP), skb->protocol);
goto tx_error;
}
if (skb->dst)
skb->dst->ops->update_pmtu(skb->dst, mtu);
- df |= (old_iph->frag_off&__constant_htons(IP_DF));
+ df |= (old_iph->frag_off & htons(IP_DF));
- if ((old_iph->frag_off&__constant_htons(IP_DF))
+ if ((old_iph->frag_off & htons(IP_DF))
&& mtu < ntohs(old_iph->tot_len)) {
icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
ip_rt_put(rt);
}
kfree_skb(skb);
skb = new_skb;
- old_iph = skb->nh.iph;
+ old_iph = ip_hdr(skb);
}
- skb->h.raw = (void *) old_iph;
+ skb->transport_header = old_transport_header;
/* fix old IP header checksum */
ip_send_check(old_iph);
- skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
+ skb_push(skb, sizeof(struct iphdr));
+ skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
/* drop old route */
/*
* Push down and install the IPIP header.
*/
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = sizeof(struct iphdr)>>2;
iph->frag_off = df;
struct ip_vs_protocol *pp)
{
struct rtable *rt; /* Route to the other host */
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
int mtu;
EnterFunction(10);
/* MTU checking */
mtu = dst_mtu(&rt->u.dst);
- if ((iph->frag_off&__constant_htons(IP_DF)) && skb->len > mtu) {
+ if ((iph->frag_off & htons(IP_DF)) && skb->len > mtu) {
icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
ip_rt_put(rt);
IP_VS_DBG_RL("ip_vs_dr_xmit(): frag needed\n");
ip_rt_put(rt);
return NF_STOLEN;
}
- ip_send_check(skb->nh.iph);
+ ip_send_check(ip_hdr(skb));
/* drop old route */
dst_release(skb->dst);
* mangle and send the packet here (only for VS/NAT)
*/
- if (!(rt = __ip_vs_get_out_rt(cp, RT_TOS(skb->nh.iph->tos))))
+ if (!(rt = __ip_vs_get_out_rt(cp, RT_TOS(ip_hdr(skb)->tos))))
goto tx_error_icmp;
/* MTU checking */
mtu = dst_mtu(&rt->u.dst);
- if ((skb->len > mtu) && (skb->nh.iph->frag_off&__constant_htons(IP_DF))) {
+ if ((skb->len > mtu) && (ip_hdr(skb)->frag_off & htons(IP_DF))) {
ip_rt_put(rt);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
IP_VS_DBG_RL("ip_vs_in_icmp(): frag needed\n");
spin_unlock_bh(&state_lock);
break;
- };
+ }
return NOTIFY_DONE;
}
/* route_me_harder function, used by iptable_nat, iptable_mangle + ip_queue */
int ip_route_me_harder(struct sk_buff **pskb, unsigned addr_type)
{
- struct iphdr *iph = (*pskb)->nh.iph;
+ const struct iphdr *iph = ip_hdr(*pskb);
struct rtable *rt;
struct flowi fl = {};
struct dst_entry *odst;
struct ip_rt_info *rt_info = nf_info_reroute(info);
if (info->hook == NF_IP_LOCAL_OUT) {
- const struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
rt_info->tos = iph->tos;
rt_info->daddr = iph->daddr;
const struct ip_rt_info *rt_info = nf_info_reroute(info);
if (info->hook == NF_IP_LOCAL_OUT) {
- struct iphdr *iph = (*pskb)->nh.iph;
+ const struct iphdr *iph = ip_hdr(*pskb);
if (!(iph->tos == rt_info->tos
&& iph->daddr == rt_info->daddr
__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
- struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
__sum16 csum = 0;
switch (skb->ip_summed) {
If unsure, say Y.
-# connection tracking, helpers and protocols
-config IP_NF_CT_ACCT
- bool "Connection tracking flow accounting"
- depends on IP_NF_CONNTRACK
- help
- If this option is enabled, the connection tracking code will
- keep per-flow packet and byte counters.
-
- Those counters can be used for flow-based accounting or the
- `connbytes' match.
-
- If unsure, say `N'.
-
-config IP_NF_CONNTRACK_MARK
- bool 'Connection mark tracking support'
- depends on IP_NF_CONNTRACK
- help
- This option enables support for connection marks, used by the
- `CONNMARK' target and `connmark' match. Similar to the mark value
- of packets, but this mark value is kept in the conntrack session
- instead of the individual packets.
-
-config IP_NF_CONNTRACK_SECMARK
- bool 'Connection tracking security mark support'
- depends on IP_NF_CONNTRACK && NETWORK_SECMARK
- help
- This option enables security markings to be applied to
- connections. Typically they are copied to connections from
- packets using the CONNSECMARK target and copied back from
- connections to packets with the same target, with the packets
- being originally labeled via SECMARK.
-
- If unsure, say 'N'.
-
-config IP_NF_CONNTRACK_EVENTS
- bool "Connection tracking events (EXPERIMENTAL)"
- depends on EXPERIMENTAL && IP_NF_CONNTRACK
- help
- If this option is enabled, the connection tracking code will
- provide a notifier chain that can be used by other kernel code
- to get notified about changes in the connection tracking state.
-
- IF unsure, say `N'.
-
-config IP_NF_CONNTRACK_NETLINK
- tristate 'Connection tracking netlink interface (EXPERIMENTAL)'
- depends on EXPERIMENTAL && IP_NF_CONNTRACK && NETFILTER_NETLINK
- depends on IP_NF_CONNTRACK!=y || NETFILTER_NETLINK!=m
- depends on IP_NF_NAT=n || IP_NF_NAT
- help
- This option enables support for a netlink-based userspace interface
-
-
-config IP_NF_CT_PROTO_SCTP
- tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)'
- depends on IP_NF_CONNTRACK && EXPERIMENTAL
- help
- With this option enabled, the connection tracking code will
- be able to do state tracking on SCTP connections.
-
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
-
-config IP_NF_FTP
- tristate "FTP protocol support"
- depends on IP_NF_CONNTRACK
- help
- Tracking FTP connections is problematic: special helpers are
- required for tracking them, and doing masquerading and other forms
- of Network Address Translation on them.
-
- To compile it as a module, choose M here. If unsure, say Y.
-
-config IP_NF_IRC
- tristate "IRC protocol support"
- depends on IP_NF_CONNTRACK
- ---help---
- There is a commonly-used extension to IRC called
- Direct Client-to-Client Protocol (DCC). This enables users to send
- files to each other, and also chat to each other without the need
- of a server. DCC Sending is used anywhere you send files over IRC,
- and DCC Chat is most commonly used by Eggdrop bots. If you are
- using NAT, this extension will enable you to send files and initiate
- chats. Note that you do NOT need this extension to get files or
- have others initiate chats, or everything else in IRC.
-
- To compile it as a module, choose M here. If unsure, say Y.
-
-config IP_NF_NETBIOS_NS
- tristate "NetBIOS name service protocol support (EXPERIMENTAL)"
- depends on IP_NF_CONNTRACK && EXPERIMENTAL
- help
- NetBIOS name service requests are sent as broadcast messages from an
- unprivileged port and responded to with unicast messages to the
- same port. This make them hard to firewall properly because connection
- tracking doesn't deal with broadcasts. This helper tracks locally
- originating NetBIOS name service requests and the corresponding
- responses. It relies on correct IP address configuration, specifically
- netmask and broadcast address. When properly configured, the output
- of "ip address show" should look similar to this:
-
- $ ip -4 address show eth0
- 4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
- inet 172.16.2.252/24 brd 172.16.2.255 scope global eth0
-
- To compile it as a module, choose M here. If unsure, say N.
-
-config IP_NF_TFTP
- tristate "TFTP protocol support"
- depends on IP_NF_CONNTRACK
- help
- TFTP connection tracking helper, this is required depending
- on how restrictive your ruleset is.
- If you are using a tftp client behind -j SNAT or -j MASQUERADING
- you will need this.
-
- To compile it as a module, choose M here. If unsure, say Y.
-
-config IP_NF_AMANDA
- tristate "Amanda backup protocol support"
- depends on IP_NF_CONNTRACK
- select TEXTSEARCH
- select TEXTSEARCH_KMP
- help
- If you are running the Amanda backup package <http://www.amanda.org/>
- on this machine or machines that will be MASQUERADED through this
- machine, then you may want to enable this feature. This allows the
- connection tracking and natting code to allow the sub-channels that
- Amanda requires for communication of the backup data, messages and
- index.
-
- To compile it as a module, choose M here. If unsure, say Y.
-
-config IP_NF_PPTP
- tristate 'PPTP protocol support'
- depends on IP_NF_CONNTRACK
- help
- This module adds support for PPTP (Point to Point Tunnelling
- Protocol, RFC2637) connection tracking and NAT.
-
- If you are running PPTP sessions over a stateful firewall or NAT
- box, you may want to enable this feature.
-
- Please note that not all PPTP modes of operation are supported yet.
- For more info, read top of the file
- net/ipv4/netfilter/ip_conntrack_pptp.c
-
- If you want to compile it as a module, say M here and read
- Documentation/modules.txt. If unsure, say `N'.
-
-config IP_NF_H323
- tristate 'H.323 protocol support (EXPERIMENTAL)'
- depends on IP_NF_CONNTRACK && EXPERIMENTAL
- help
- H.323 is a VoIP signalling protocol from ITU-T. As one of the most
- important VoIP protocols, it is widely used by voice hardware and
- software including voice gateways, IP phones, Netmeeting, OpenPhone,
- Gnomemeeting, etc.
-
- With this module you can support H.323 on a connection tracking/NAT
- firewall.
-
- This module supports RAS, Fast Start, H.245 Tunnelling, Call
- Forwarding, RTP/RTCP and T.120 based audio, video, fax, chat,
- whiteboard, file transfer, etc. For more information, please
- visit http://nath323.sourceforge.net/.
-
- If you want to compile it as a module, say 'M' here and read
- Documentation/modules.txt. If unsure, say 'N'.
-
-config IP_NF_SIP
- tristate "SIP protocol support (EXPERIMENTAL)"
- depends on IP_NF_CONNTRACK && EXPERIMENTAL
- help
- SIP is an application-layer control protocol that can establish,
- modify, and terminate multimedia sessions (conferences) such as
- Internet telephony calls. With the ip_conntrack_sip and
- the ip_nat_sip modules you can support the protocol on a connection
- tracking/NATing firewall.
-
- To compile it as a module, choose M here. If unsure, say Y.
-
config IP_NF_QUEUE
tristate "IP Userspace queueing via NETLINK (OBSOLETE)"
help
To compile it as a module, choose M here. If unsure, say N.
-# NAT + specific targets: ip_conntrack
-config IP_NF_NAT
- tristate "Full NAT"
- depends on IP_NF_IPTABLES && IP_NF_CONNTRACK
- help
- The Full NAT option allows masquerading, port forwarding and other
- forms of full Network Address Port Translation. It is controlled by
- the `nat' table in iptables: see the man page for iptables(8).
-
- To compile it as a module, choose M here. If unsure, say N.
-
# NAT + specific targets: nf_conntrack
config NF_NAT
tristate "Full NAT"
To compile it as a module, choose M here. If unsure, say N.
-config IP_NF_NAT_NEEDED
- bool
- depends on IP_NF_NAT
- default y
-
config NF_NAT_NEEDED
bool
depends on NF_NAT
config IP_NF_TARGET_MASQUERADE
tristate "MASQUERADE target support"
- depends on (NF_NAT || IP_NF_NAT)
+ depends on NF_NAT
help
Masquerading is a special case of NAT: all outgoing connections are
changed to seem to come from a particular interface's address, and
config IP_NF_TARGET_REDIRECT
tristate "REDIRECT target support"
- depends on (NF_NAT || IP_NF_NAT)
+ depends on NF_NAT
help
REDIRECT is a special case of NAT: all incoming connections are
mapped onto the incoming interface's address, causing the packets to
config IP_NF_TARGET_NETMAP
tristate "NETMAP target support"
- depends on (NF_NAT || IP_NF_NAT)
+ depends on NF_NAT
help
NETMAP is an implementation of static 1:1 NAT mapping of network
addresses. It maps the network address part, while keeping the host
config IP_NF_TARGET_SAME
tristate "SAME target support"
- depends on (NF_NAT || IP_NF_NAT)
+ depends on NF_NAT
help
This option adds a `SAME' target, which works like the standard SNAT
target, but attempts to give clients the same IP for all connections.
To compile it as a module, choose M here. If unsure, say N.
-config IP_NF_NAT_SNMP_BASIC
- tristate "Basic SNMP-ALG support (EXPERIMENTAL)"
- depends on EXPERIMENTAL && IP_NF_NAT
- ---help---
-
- This module implements an Application Layer Gateway (ALG) for
- SNMP payloads. In conjunction with NAT, it allows a network
- management system to access multiple private networks with
- conflicting addresses. It works by modifying IP addresses
- inside SNMP payloads to match IP-layer NAT mapping.
-
- This is the "basic" form of SNMP-ALG, as described in RFC 2962
-
- To compile it as a module, choose M here. If unsure, say N.
-
config NF_NAT_SNMP_BASIC
tristate "Basic SNMP-ALG support (EXPERIMENTAL)"
depends on EXPERIMENTAL && NF_NAT
tristate
depends on NF_NAT && NF_CT_PROTO_GRE
-config IP_NF_NAT_FTP
- tristate
- depends on IP_NF_IPTABLES && IP_NF_CONNTRACK && IP_NF_NAT
- default IP_NF_NAT && IP_NF_FTP
-
config NF_NAT_FTP
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
default NF_NAT && NF_CONNTRACK_FTP
-config IP_NF_NAT_IRC
- tristate
- depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
- default IP_NF_NAT if IP_NF_IRC=y
- default m if IP_NF_IRC=m
-
config NF_NAT_IRC
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
default NF_NAT && NF_CONNTRACK_IRC
-config IP_NF_NAT_TFTP
- tristate
- depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
- default IP_NF_NAT if IP_NF_TFTP=y
- default m if IP_NF_TFTP=m
-
config NF_NAT_TFTP
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
default NF_NAT && NF_CONNTRACK_TFTP
-config IP_NF_NAT_AMANDA
- tristate
- depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
- default IP_NF_NAT if IP_NF_AMANDA=y
- default m if IP_NF_AMANDA=m
-
config NF_NAT_AMANDA
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
default NF_NAT && NF_CONNTRACK_AMANDA
-config IP_NF_NAT_PPTP
- tristate
- depends on IP_NF_NAT!=n && IP_NF_PPTP!=n
- default IP_NF_NAT if IP_NF_PPTP=y
- default m if IP_NF_PPTP=m
-
config NF_NAT_PPTP
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
default NF_NAT && NF_CONNTRACK_PPTP
select NF_NAT_PROTO_GRE
-config IP_NF_NAT_H323
- tristate
- depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
- default IP_NF_NAT if IP_NF_H323=y
- default m if IP_NF_H323=m
-
config NF_NAT_H323
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
default NF_NAT && NF_CONNTRACK_H323
-config IP_NF_NAT_SIP
- tristate
- depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
- default IP_NF_NAT if IP_NF_SIP=y
- default m if IP_NF_SIP=m
-
config NF_NAT_SIP
tristate
depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
config IP_NF_TARGET_CLUSTERIP
tristate "CLUSTERIP target support (EXPERIMENTAL)"
depends on IP_NF_MANGLE && EXPERIMENTAL
- depends on IP_NF_CONNTRACK || NF_CONNTRACK_IPV4
- select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK
- select NF_CONNTRACK_MARK if NF_CONNTRACK_IPV4
+ depends on NF_CONNTRACK_IPV4
+ select NF_CONNTRACK_MARK
help
The CLUSTERIP target allows you to build load-balancing clusters of
network servers without having a dedicated load-balancing
# Makefile for the netfilter modules on top of IPv4.
#
-# objects for the standalone - connection tracking / NAT
-ip_conntrack-objs := ip_conntrack_standalone.o ip_conntrack_core.o ip_conntrack_proto_generic.o ip_conntrack_proto_tcp.o ip_conntrack_proto_udp.o ip_conntrack_proto_icmp.o
# objects for l3 independent conntrack
nf_conntrack_ipv4-objs := nf_conntrack_l3proto_ipv4.o nf_conntrack_proto_icmp.o
ifeq ($(CONFIG_NF_CONNTRACK_PROC_COMPAT),y)
endif
endif
-ip_nat-objs := ip_nat_core.o ip_nat_helper.o ip_nat_proto_unknown.o ip_nat_proto_tcp.o ip_nat_proto_udp.o ip_nat_proto_icmp.o
-nf_nat-objs := nf_nat_core.o nf_nat_helper.o nf_nat_proto_unknown.o nf_nat_proto_tcp.o nf_nat_proto_udp.o nf_nat_proto_icmp.o
-ifneq ($(CONFIG_NF_NAT),)
+nf_nat-objs := nf_nat_core.o nf_nat_helper.o nf_nat_proto_unknown.o nf_nat_proto_tcp.o nf_nat_proto_udp.o nf_nat_proto_icmp.o
iptable_nat-objs := nf_nat_rule.o nf_nat_standalone.o
-else
-iptable_nat-objs := ip_nat_rule.o ip_nat_standalone.o
-endif
-
-ip_conntrack_pptp-objs := ip_conntrack_helper_pptp.o ip_conntrack_proto_gre.o
-ip_nat_pptp-objs := ip_nat_helper_pptp.o ip_nat_proto_gre.o
-
-ip_conntrack_h323-objs := ip_conntrack_helper_h323.o ../../netfilter/nf_conntrack_h323_asn1.o
-ip_nat_h323-objs := ip_nat_helper_h323.o
# connection tracking
-obj-$(CONFIG_IP_NF_CONNTRACK) += ip_conntrack.o
obj-$(CONFIG_NF_CONNTRACK_IPV4) += nf_conntrack_ipv4.o
-obj-$(CONFIG_IP_NF_NAT) += ip_nat.o
obj-$(CONFIG_NF_NAT) += nf_nat.o
-# conntrack netlink interface
-obj-$(CONFIG_IP_NF_CONNTRACK_NETLINK) += ip_conntrack_netlink.o
-
-
-# SCTP protocol connection tracking
-obj-$(CONFIG_IP_NF_CT_PROTO_SCTP) += ip_conntrack_proto_sctp.o
-
-# connection tracking helpers
-obj-$(CONFIG_IP_NF_H323) += ip_conntrack_h323.o
-obj-$(CONFIG_IP_NF_PPTP) += ip_conntrack_pptp.o
-obj-$(CONFIG_IP_NF_AMANDA) += ip_conntrack_amanda.o
-obj-$(CONFIG_IP_NF_TFTP) += ip_conntrack_tftp.o
-obj-$(CONFIG_IP_NF_FTP) += ip_conntrack_ftp.o
-obj-$(CONFIG_IP_NF_IRC) += ip_conntrack_irc.o
-obj-$(CONFIG_IP_NF_SIP) += ip_conntrack_sip.o
-obj-$(CONFIG_IP_NF_NETBIOS_NS) += ip_conntrack_netbios_ns.o
-
-# NAT helpers (ip_conntrack)
-obj-$(CONFIG_IP_NF_NAT_H323) += ip_nat_h323.o
-obj-$(CONFIG_IP_NF_NAT_PPTP) += ip_nat_pptp.o
-obj-$(CONFIG_IP_NF_NAT_AMANDA) += ip_nat_amanda.o
-obj-$(CONFIG_IP_NF_NAT_TFTP) += ip_nat_tftp.o
-obj-$(CONFIG_IP_NF_NAT_FTP) += ip_nat_ftp.o
-obj-$(CONFIG_IP_NF_NAT_IRC) += ip_nat_irc.o
-obj-$(CONFIG_IP_NF_NAT_SIP) += ip_nat_sip.o
-
# NAT helpers (nf_conntrack)
obj-$(CONFIG_NF_NAT_AMANDA) += nf_nat_amanda.o
obj-$(CONFIG_NF_NAT_FTP) += nf_nat_ftp.o
# the three instances of ip_tables
obj-$(CONFIG_IP_NF_FILTER) += iptable_filter.o
obj-$(CONFIG_IP_NF_MANGLE) += iptable_mangle.o
-obj-$(CONFIG_IP_NF_NAT) += iptable_nat.o
obj-$(CONFIG_NF_NAT) += iptable_nat.o
obj-$(CONFIG_IP_NF_RAW) += iptable_raw.o
obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
obj-$(CONFIG_IP_NF_TARGET_SAME) += ipt_SAME.o
-obj-$(CONFIG_IP_NF_NAT_SNMP_BASIC) += ip_nat_snmp_basic.o
obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o
obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o
obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o
e = get_entry(table_base, private->hook_entry[hook]);
back = get_entry(table_base, private->underflow[hook]);
- arp = (*pskb)->nh.arph;
+ arp = arp_hdr(*pskb);
do {
if (arp_packet_match(arp, (*pskb)->dev, indev, outdev, &e->arp)) {
struct arpt_entry_target *t;
t->data);
/* Target might have changed stuff. */
- arp = (*pskb)->nh.arph;
+ arp = arp_hdr(*pskb);
if (verdict == ARPT_CONTINUE)
e = (void *)e + e->next_offset;
*pskb = nskb;
}
- arp = (*pskb)->nh.arph;
- arpptr = (*pskb)->nh.raw + sizeof(*arp);
+ arp = arp_hdr(*pskb);
+ arpptr = skb_network_header(*pskb) + sizeof(*arp);
pln = arp->ar_pln;
hln = arp->ar_hln;
/* We assume that pln and hln were checked in the match */
if (mangle->flags & ARPT_MANGLE_SDEV) {
if (ARPT_DEV_ADDR_LEN_MAX < hln ||
- (arpptr + hln > (**pskb).tail))
+ (arpptr + hln > skb_tail_pointer(*pskb)))
return NF_DROP;
memcpy(arpptr, mangle->src_devaddr, hln);
}
arpptr += hln;
if (mangle->flags & ARPT_MANGLE_SIP) {
if (ARPT_MANGLE_ADDR_LEN_MAX < pln ||
- (arpptr + pln > (**pskb).tail))
+ (arpptr + pln > skb_tail_pointer(*pskb)))
return NF_DROP;
memcpy(arpptr, &mangle->u_s.src_ip, pln);
}
arpptr += pln;
if (mangle->flags & ARPT_MANGLE_TDEV) {
if (ARPT_DEV_ADDR_LEN_MAX < hln ||
- (arpptr + hln > (**pskb).tail))
+ (arpptr + hln > skb_tail_pointer(*pskb)))
return NF_DROP;
memcpy(arpptr, mangle->tgt_devaddr, hln);
}
arpptr += hln;
if (mangle->flags & ARPT_MANGLE_TIP) {
if (ARPT_MANGLE_ADDR_LEN_MAX < pln ||
- (arpptr + pln > (**pskb).tail))
+ (arpptr + pln > skb_tail_pointer(*pskb)))
return NF_DROP;
memcpy(arpptr, &mangle->u_t.tgt_ip, pln);
}
+++ /dev/null
-/* Amanda extension for IP connection tracking, Version 0.2
- * (C) 2002 by Brian J. Murrell <netfilter@interlinx.bc.ca>
- * based on HW's ip_conntrack_irc.c as well as other modules
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Module load syntax:
- * insmod ip_conntrack_amanda.o [master_timeout=n]
- *
- * Where master_timeout is the timeout (in seconds) of the master
- * connection (port 10080). This defaults to 5 minutes but if
- * your clients take longer than 5 minutes to do their work
- * before getting back to the Amanda server, you can increase
- * this value.
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/textsearch.h>
-#include <linux/skbuff.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
-
-static unsigned int master_timeout = 300;
-static char *ts_algo = "kmp";
-
-MODULE_AUTHOR("Brian J. Murrell <netfilter@interlinx.bc.ca>");
-MODULE_DESCRIPTION("Amanda connection tracking module");
-MODULE_LICENSE("GPL");
-module_param(master_timeout, uint, 0600);
-MODULE_PARM_DESC(master_timeout, "timeout for the master connection");
-module_param(ts_algo, charp, 0400);
-MODULE_PARM_DESC(ts_algo, "textsearch algorithm to use (default kmp)");
-
-unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp);
-EXPORT_SYMBOL_GPL(ip_nat_amanda_hook);
-
-enum amanda_strings {
- SEARCH_CONNECT,
- SEARCH_NEWLINE,
- SEARCH_DATA,
- SEARCH_MESG,
- SEARCH_INDEX,
-};
-
-static struct {
- char *string;
- size_t len;
- struct ts_config *ts;
-} search[] = {
- [SEARCH_CONNECT] = {
- .string = "CONNECT ",
- .len = 8,
- },
- [SEARCH_NEWLINE] = {
- .string = "\n",
- .len = 1,
- },
- [SEARCH_DATA] = {
- .string = "DATA ",
- .len = 5,
- },
- [SEARCH_MESG] = {
- .string = "MESG ",
- .len = 5,
- },
- [SEARCH_INDEX] = {
- .string = "INDEX ",
- .len = 6,
- },
-};
-
-static int help(struct sk_buff **pskb,
- struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-{
- struct ts_state ts;
- struct ip_conntrack_expect *exp;
- unsigned int dataoff, start, stop, off, i;
- char pbuf[sizeof("65535")], *tmp;
- u_int16_t port, len;
- int ret = NF_ACCEPT;
- typeof(ip_nat_amanda_hook) ip_nat_amanda;
-
- /* Only look at packets from the Amanda server */
- if (CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL)
- return NF_ACCEPT;
-
- /* increase the UDP timeout of the master connection as replies from
- * Amanda clients to the server can be quite delayed */
- ip_ct_refresh(ct, *pskb, master_timeout * HZ);
-
- /* No data? */
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
- if (dataoff >= (*pskb)->len) {
- if (net_ratelimit())
- printk("amanda_help: skblen = %u\n", (*pskb)->len);
- return NF_ACCEPT;
- }
-
- memset(&ts, 0, sizeof(ts));
- start = skb_find_text(*pskb, dataoff, (*pskb)->len,
- search[SEARCH_CONNECT].ts, &ts);
- if (start == UINT_MAX)
- goto out;
- start += dataoff + search[SEARCH_CONNECT].len;
-
- memset(&ts, 0, sizeof(ts));
- stop = skb_find_text(*pskb, start, (*pskb)->len,
- search[SEARCH_NEWLINE].ts, &ts);
- if (stop == UINT_MAX)
- goto out;
- stop += start;
-
- for (i = SEARCH_DATA; i <= SEARCH_INDEX; i++) {
- memset(&ts, 0, sizeof(ts));
- off = skb_find_text(*pskb, start, stop, search[i].ts, &ts);
- if (off == UINT_MAX)
- continue;
- off += start + search[i].len;
-
- len = min_t(unsigned int, sizeof(pbuf) - 1, stop - off);
- if (skb_copy_bits(*pskb, off, pbuf, len))
- break;
- pbuf[len] = '\0';
-
- port = simple_strtoul(pbuf, &tmp, 10);
- len = tmp - pbuf;
- if (port == 0 || len > 5)
- break;
-
- exp = ip_conntrack_expect_alloc(ct);
- if (exp == NULL) {
- ret = NF_DROP;
- goto out;
- }
-
- exp->expectfn = NULL;
- exp->flags = 0;
-
- exp->tuple.src.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->tuple.dst.u.tcp.port = htons(port);
-
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
-
- /* RCU read locked by nf_hook_slow */
- ip_nat_amanda = rcu_dereference(ip_nat_amanda_hook);
- if (ip_nat_amanda)
- ret = ip_nat_amanda(pskb, ctinfo, off - dataoff,
- len, exp);
- else if (ip_conntrack_expect_related(exp) != 0)
- ret = NF_DROP;
- ip_conntrack_expect_put(exp);
- }
-
-out:
- return ret;
-}
-
-static struct ip_conntrack_helper amanda_helper = {
- .max_expected = 3,
- .timeout = 180,
- .me = THIS_MODULE,
- .help = help,
- .name = "amanda",
-
- .tuple = { .src = { .u = { .udp = {.port = __constant_htons(10080) } } },
- .dst = { .protonum = IPPROTO_UDP },
- },
- .mask = { .src = { .u = { 0xFFFF } },
- .dst = { .protonum = 0xFF },
- },
-};
-
-static void __exit ip_conntrack_amanda_fini(void)
-{
- int i;
-
- ip_conntrack_helper_unregister(&amanda_helper);
- for (i = 0; i < ARRAY_SIZE(search); i++)
- textsearch_destroy(search[i].ts);
-}
-
-static int __init ip_conntrack_amanda_init(void)
-{
- int ret, i;
-
- ret = -ENOMEM;
- for (i = 0; i < ARRAY_SIZE(search); i++) {
- search[i].ts = textsearch_prepare(ts_algo, search[i].string,
- search[i].len,
- GFP_KERNEL, TS_AUTOLOAD);
- if (search[i].ts == NULL)
- goto err;
- }
- ret = ip_conntrack_helper_register(&amanda_helper);
- if (ret < 0)
- goto err;
- return 0;
-
-err:
- for (; i >= 0; i--) {
- if (search[i].ts)
- textsearch_destroy(search[i].ts);
- }
- return ret;
-}
-
-module_init(ip_conntrack_amanda_init);
-module_exit(ip_conntrack_amanda_fini);
+++ /dev/null
-/* Connection state tracking for netfilter. This is separated from,
- but required by, the NAT layer; it can also be used by an iptables
- extension. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 23 Apr 2001: Harald Welte <laforge@gnumonks.org>
- * - new API and handling of conntrack/nat helpers
- * - now capable of multiple expectations for one master
- * 16 Jul 2002: Harald Welte <laforge@gnumonks.org>
- * - add usage/reference counts to ip_conntrack_expect
- * - export ip_conntrack[_expect]_{find_get,put} functions
- * */
-
-#include <linux/types.h>
-#include <linux/icmp.h>
-#include <linux/ip.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/vmalloc.h>
-#include <net/checksum.h>
-#include <net/ip.h>
-#include <linux/stddef.h>
-#include <linux/sysctl.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/jhash.h>
-#include <linux/err.h>
-#include <linux/percpu.h>
-#include <linux/moduleparam.h>
-#include <linux/notifier.h>
-
-/* ip_conntrack_lock protects the main hash table, protocol/helper/expected
- registrations, conntrack timers*/
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-
-#define IP_CONNTRACK_VERSION "2.4"
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-DEFINE_RWLOCK(ip_conntrack_lock);
-
-/* ip_conntrack_standalone needs this */
-atomic_t ip_conntrack_count = ATOMIC_INIT(0);
-
-void (*ip_conntrack_destroyed)(struct ip_conntrack *conntrack) = NULL;
-LIST_HEAD(ip_conntrack_expect_list);
-struct ip_conntrack_protocol *ip_ct_protos[MAX_IP_CT_PROTO] __read_mostly;
-static LIST_HEAD(helpers);
-unsigned int ip_conntrack_htable_size __read_mostly = 0;
-int ip_conntrack_max __read_mostly;
-struct list_head *ip_conntrack_hash __read_mostly;
-static struct kmem_cache *ip_conntrack_cachep __read_mostly;
-static struct kmem_cache *ip_conntrack_expect_cachep __read_mostly;
-struct ip_conntrack ip_conntrack_untracked;
-unsigned int ip_ct_log_invalid __read_mostly;
-static LIST_HEAD(unconfirmed);
-static int ip_conntrack_vmalloc __read_mostly;
-
-static unsigned int ip_conntrack_next_id;
-static unsigned int ip_conntrack_expect_next_id;
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-ATOMIC_NOTIFIER_HEAD(ip_conntrack_chain);
-ATOMIC_NOTIFIER_HEAD(ip_conntrack_expect_chain);
-
-DEFINE_PER_CPU(struct ip_conntrack_ecache, ip_conntrack_ecache);
-
-/* deliver cached events and clear cache entry - must be called with locally
- * disabled softirqs */
-static inline void
-__ip_ct_deliver_cached_events(struct ip_conntrack_ecache *ecache)
-{
- DEBUGP("ecache: delivering events for %p\n", ecache->ct);
- if (is_confirmed(ecache->ct) && !is_dying(ecache->ct) && ecache->events)
- atomic_notifier_call_chain(&ip_conntrack_chain, ecache->events,
- ecache->ct);
- ecache->events = 0;
- ip_conntrack_put(ecache->ct);
- ecache->ct = NULL;
-}
-
-/* Deliver all cached events for a particular conntrack. This is called
- * by code prior to async packet handling or freeing the skb */
-void ip_ct_deliver_cached_events(const struct ip_conntrack *ct)
-{
- struct ip_conntrack_ecache *ecache;
-
- local_bh_disable();
- ecache = &__get_cpu_var(ip_conntrack_ecache);
- if (ecache->ct == ct)
- __ip_ct_deliver_cached_events(ecache);
- local_bh_enable();
-}
-
-void __ip_ct_event_cache_init(struct ip_conntrack *ct)
-{
- struct ip_conntrack_ecache *ecache;
-
- /* take care of delivering potentially old events */
- ecache = &__get_cpu_var(ip_conntrack_ecache);
- BUG_ON(ecache->ct == ct);
- if (ecache->ct)
- __ip_ct_deliver_cached_events(ecache);
- /* initialize for this conntrack/packet */
- ecache->ct = ct;
- nf_conntrack_get(&ct->ct_general);
-}
-
-/* flush the event cache - touches other CPU's data and must not be called while
- * packets are still passing through the code */
-static void ip_ct_event_cache_flush(void)
-{
- struct ip_conntrack_ecache *ecache;
- int cpu;
-
- for_each_possible_cpu(cpu) {
- ecache = &per_cpu(ip_conntrack_ecache, cpu);
- if (ecache->ct)
- ip_conntrack_put(ecache->ct);
- }
-}
-#else
-static inline void ip_ct_event_cache_flush(void) {}
-#endif /* CONFIG_IP_NF_CONNTRACK_EVENTS */
-
-DEFINE_PER_CPU(struct ip_conntrack_stat, ip_conntrack_stat);
-
-static int ip_conntrack_hash_rnd_initted;
-static unsigned int ip_conntrack_hash_rnd;
-
-static u_int32_t __hash_conntrack(const struct ip_conntrack_tuple *tuple,
- unsigned int size, unsigned int rnd)
-{
- return (jhash_3words((__force u32)tuple->src.ip,
- ((__force u32)tuple->dst.ip ^ tuple->dst.protonum),
- (tuple->src.u.all | (tuple->dst.u.all << 16)),
- rnd) % size);
-}
-
-static u_int32_t
-hash_conntrack(const struct ip_conntrack_tuple *tuple)
-{
- return __hash_conntrack(tuple, ip_conntrack_htable_size,
- ip_conntrack_hash_rnd);
-}
-
-int
-ip_ct_get_tuple(const struct iphdr *iph,
- const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_protocol *protocol)
-{
- /* Never happen */
- if (iph->frag_off & htons(IP_OFFSET)) {
- printk("ip_conntrack_core: Frag of proto %u.\n",
- iph->protocol);
- return 0;
- }
-
- tuple->src.ip = iph->saddr;
- tuple->dst.ip = iph->daddr;
- tuple->dst.protonum = iph->protocol;
- tuple->dst.dir = IP_CT_DIR_ORIGINAL;
-
- return protocol->pkt_to_tuple(skb, dataoff, tuple);
-}
-
-int
-ip_ct_invert_tuple(struct ip_conntrack_tuple *inverse,
- const struct ip_conntrack_tuple *orig,
- const struct ip_conntrack_protocol *protocol)
-{
- inverse->src.ip = orig->dst.ip;
- inverse->dst.ip = orig->src.ip;
- inverse->dst.protonum = orig->dst.protonum;
- inverse->dst.dir = !orig->dst.dir;
-
- return protocol->invert_tuple(inverse, orig);
-}
-
-
-/* ip_conntrack_expect helper functions */
-void ip_ct_unlink_expect(struct ip_conntrack_expect *exp)
-{
- IP_NF_ASSERT(!timer_pending(&exp->timeout));
- list_del(&exp->list);
- CONNTRACK_STAT_INC(expect_delete);
- exp->master->expecting--;
- ip_conntrack_expect_put(exp);
-}
-
-static void expectation_timed_out(unsigned long ul_expect)
-{
- struct ip_conntrack_expect *exp = (void *)ul_expect;
-
- write_lock_bh(&ip_conntrack_lock);
- ip_ct_unlink_expect(exp);
- write_unlock_bh(&ip_conntrack_lock);
- ip_conntrack_expect_put(exp);
-}
-
-struct ip_conntrack_expect *
-__ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple)
-{
- struct ip_conntrack_expect *i;
-
- list_for_each_entry(i, &ip_conntrack_expect_list, list) {
- if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask))
- return i;
- }
- return NULL;
-}
-
-/* Just find a expectation corresponding to a tuple. */
-struct ip_conntrack_expect *
-ip_conntrack_expect_find_get(const struct ip_conntrack_tuple *tuple)
-{
- struct ip_conntrack_expect *i;
-
- read_lock_bh(&ip_conntrack_lock);
- i = __ip_conntrack_expect_find(tuple);
- if (i)
- atomic_inc(&i->use);
- read_unlock_bh(&ip_conntrack_lock);
-
- return i;
-}
-
-/* If an expectation for this connection is found, it gets delete from
- * global list then returned. */
-static struct ip_conntrack_expect *
-find_expectation(const struct ip_conntrack_tuple *tuple)
-{
- struct ip_conntrack_expect *i;
-
- list_for_each_entry(i, &ip_conntrack_expect_list, list) {
- /* If master is not in hash table yet (ie. packet hasn't left
- this machine yet), how can other end know about expected?
- Hence these are not the droids you are looking for (if
- master ct never got confirmed, we'd hold a reference to it
- and weird things would happen to future packets). */
- if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)
- && is_confirmed(i->master)) {
- if (i->flags & IP_CT_EXPECT_PERMANENT) {
- atomic_inc(&i->use);
- return i;
- } else if (del_timer(&i->timeout)) {
- ip_ct_unlink_expect(i);
- return i;
- }
- }
- }
- return NULL;
-}
-
-/* delete all expectations for this conntrack */
-void ip_ct_remove_expectations(struct ip_conntrack *ct)
-{
- struct ip_conntrack_expect *i, *tmp;
-
- /* Optimization: most connection never expect any others. */
- if (ct->expecting == 0)
- return;
-
- list_for_each_entry_safe(i, tmp, &ip_conntrack_expect_list, list) {
- if (i->master == ct && del_timer(&i->timeout)) {
- ip_ct_unlink_expect(i);
- ip_conntrack_expect_put(i);
- }
- }
-}
-
-static void
-clean_from_lists(struct ip_conntrack *ct)
-{
- DEBUGP("clean_from_lists(%p)\n", ct);
- list_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list);
- list_del(&ct->tuplehash[IP_CT_DIR_REPLY].list);
-
- /* Destroy all pending expectations */
- ip_ct_remove_expectations(ct);
-}
-
-static void
-destroy_conntrack(struct nf_conntrack *nfct)
-{
- struct ip_conntrack *ct = (struct ip_conntrack *)nfct;
- struct ip_conntrack_protocol *proto;
- struct ip_conntrack_helper *helper;
- typeof(ip_conntrack_destroyed) destroyed;
-
- DEBUGP("destroy_conntrack(%p)\n", ct);
- IP_NF_ASSERT(atomic_read(&nfct->use) == 0);
- IP_NF_ASSERT(!timer_pending(&ct->timeout));
-
- ip_conntrack_event(IPCT_DESTROY, ct);
- set_bit(IPS_DYING_BIT, &ct->status);
-
- helper = ct->helper;
- if (helper && helper->destroy)
- helper->destroy(ct);
-
- /* To make sure we don't get any weird locking issues here:
- * destroy_conntrack() MUST NOT be called with a write lock
- * to ip_conntrack_lock!!! -HW */
- rcu_read_lock();
- proto = __ip_conntrack_proto_find(ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.protonum);
- if (proto && proto->destroy)
- proto->destroy(ct);
-
- destroyed = rcu_dereference(ip_conntrack_destroyed);
- if (destroyed)
- destroyed(ct);
-
- rcu_read_unlock();
-
- write_lock_bh(&ip_conntrack_lock);
- /* Expectations will have been removed in clean_from_lists,
- * except TFTP can create an expectation on the first packet,
- * before connection is in the list, so we need to clean here,
- * too. */
- ip_ct_remove_expectations(ct);
-
- /* We overload first tuple to link into unconfirmed list. */
- if (!is_confirmed(ct)) {
- BUG_ON(list_empty(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list));
- list_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list);
- }
-
- CONNTRACK_STAT_INC(delete);
- write_unlock_bh(&ip_conntrack_lock);
-
- if (ct->master)
- ip_conntrack_put(ct->master);
-
- DEBUGP("destroy_conntrack: returning ct=%p to slab\n", ct);
- ip_conntrack_free(ct);
-}
-
-static void death_by_timeout(unsigned long ul_conntrack)
-{
- struct ip_conntrack *ct = (void *)ul_conntrack;
-
- write_lock_bh(&ip_conntrack_lock);
- /* Inside lock so preempt is disabled on module removal path.
- * Otherwise we can get spurious warnings. */
- CONNTRACK_STAT_INC(delete_list);
- clean_from_lists(ct);
- write_unlock_bh(&ip_conntrack_lock);
- ip_conntrack_put(ct);
-}
-
-struct ip_conntrack_tuple_hash *
-__ip_conntrack_find(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack)
-{
- struct ip_conntrack_tuple_hash *h;
- unsigned int hash = hash_conntrack(tuple);
-
- list_for_each_entry(h, &ip_conntrack_hash[hash], list) {
- if (tuplehash_to_ctrack(h) != ignored_conntrack &&
- ip_ct_tuple_equal(tuple, &h->tuple)) {
- CONNTRACK_STAT_INC(found);
- return h;
- }
- CONNTRACK_STAT_INC(searched);
- }
-
- return NULL;
-}
-
-/* Find a connection corresponding to a tuple. */
-struct ip_conntrack_tuple_hash *
-ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack)
-{
- struct ip_conntrack_tuple_hash *h;
-
- read_lock_bh(&ip_conntrack_lock);
- h = __ip_conntrack_find(tuple, ignored_conntrack);
- if (h)
- atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
- read_unlock_bh(&ip_conntrack_lock);
-
- return h;
-}
-
-static void __ip_conntrack_hash_insert(struct ip_conntrack *ct,
- unsigned int hash,
- unsigned int repl_hash)
-{
- ct->id = ++ip_conntrack_next_id;
- list_add(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list,
- &ip_conntrack_hash[hash]);
- list_add(&ct->tuplehash[IP_CT_DIR_REPLY].list,
- &ip_conntrack_hash[repl_hash]);
-}
-
-void ip_conntrack_hash_insert(struct ip_conntrack *ct)
-{
- unsigned int hash, repl_hash;
-
- hash = hash_conntrack(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
- repl_hash = hash_conntrack(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-
- write_lock_bh(&ip_conntrack_lock);
- __ip_conntrack_hash_insert(ct, hash, repl_hash);
- write_unlock_bh(&ip_conntrack_lock);
-}
-
-/* Confirm a connection given skb; places it in hash table */
-int
-__ip_conntrack_confirm(struct sk_buff **pskb)
-{
- unsigned int hash, repl_hash;
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
-
- ct = ip_conntrack_get(*pskb, &ctinfo);
-
- /* ipt_REJECT uses ip_conntrack_attach to attach related
- ICMP/TCP RST packets in other direction. Actual packet
- which created connection will be IP_CT_NEW or for an
- expected connection, IP_CT_RELATED. */
- if (CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL)
- return NF_ACCEPT;
-
- hash = hash_conntrack(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
- repl_hash = hash_conntrack(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-
- /* We're not in hash table, and we refuse to set up related
- connections for unconfirmed conns. But packet copies and
- REJECT will give spurious warnings here. */
- /* IP_NF_ASSERT(atomic_read(&ct->ct_general.use) == 1); */
-
- /* No external references means noone else could have
- confirmed us. */
- IP_NF_ASSERT(!is_confirmed(ct));
- DEBUGP("Confirming conntrack %p\n", ct);
-
- write_lock_bh(&ip_conntrack_lock);
-
- /* See if there's one in the list already, including reverse:
- NAT could have grabbed it without realizing, since we're
- not in the hash. If there is, we lost race. */
- list_for_each_entry(h, &ip_conntrack_hash[hash], list)
- if (ip_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
- &h->tuple))
- goto out;
- list_for_each_entry(h, &ip_conntrack_hash[repl_hash], list)
- if (ip_ct_tuple_equal(&ct->tuplehash[IP_CT_DIR_REPLY].tuple,
- &h->tuple))
- goto out;
-
- /* Remove from unconfirmed list */
- list_del(&ct->tuplehash[IP_CT_DIR_ORIGINAL].list);
-
- __ip_conntrack_hash_insert(ct, hash, repl_hash);
- /* Timer relative to confirmation time, not original
- setting time, otherwise we'd get timer wrap in
- weird delay cases. */
- ct->timeout.expires += jiffies;
- add_timer(&ct->timeout);
- atomic_inc(&ct->ct_general.use);
- set_bit(IPS_CONFIRMED_BIT, &ct->status);
- CONNTRACK_STAT_INC(insert);
- write_unlock_bh(&ip_conntrack_lock);
- if (ct->helper)
- ip_conntrack_event_cache(IPCT_HELPER, *pskb);
-#ifdef CONFIG_IP_NF_NAT_NEEDED
- if (test_bit(IPS_SRC_NAT_DONE_BIT, &ct->status) ||
- test_bit(IPS_DST_NAT_DONE_BIT, &ct->status))
- ip_conntrack_event_cache(IPCT_NATINFO, *pskb);
-#endif
- ip_conntrack_event_cache(master_ct(ct) ?
- IPCT_RELATED : IPCT_NEW, *pskb);
-
- return NF_ACCEPT;
-
-out:
- CONNTRACK_STAT_INC(insert_failed);
- write_unlock_bh(&ip_conntrack_lock);
- return NF_DROP;
-}
-
-/* Returns true if a connection correspondings to the tuple (required
- for NAT). */
-int
-ip_conntrack_tuple_taken(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack)
-{
- struct ip_conntrack_tuple_hash *h;
-
- read_lock_bh(&ip_conntrack_lock);
- h = __ip_conntrack_find(tuple, ignored_conntrack);
- read_unlock_bh(&ip_conntrack_lock);
-
- return h != NULL;
-}
-
-/* There's a small race here where we may free a just-assured
- connection. Too bad: we're in trouble anyway. */
-static int early_drop(struct list_head *chain)
-{
- /* Traverse backwards: gives us oldest, which is roughly LRU */
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack *ct = NULL, *tmp;
- int dropped = 0;
-
- read_lock_bh(&ip_conntrack_lock);
- list_for_each_entry_reverse(h, chain, list) {
- tmp = tuplehash_to_ctrack(h);
- if (!test_bit(IPS_ASSURED_BIT, &tmp->status)) {
- ct = tmp;
- atomic_inc(&ct->ct_general.use);
- break;
- }
- }
- read_unlock_bh(&ip_conntrack_lock);
-
- if (!ct)
- return dropped;
-
- if (del_timer(&ct->timeout)) {
- death_by_timeout((unsigned long)ct);
- dropped = 1;
- CONNTRACK_STAT_INC_ATOMIC(early_drop);
- }
- ip_conntrack_put(ct);
- return dropped;
-}
-
-static struct ip_conntrack_helper *
-__ip_conntrack_helper_find( const struct ip_conntrack_tuple *tuple)
-{
- struct ip_conntrack_helper *h;
-
- list_for_each_entry(h, &helpers, list) {
- if (ip_ct_tuple_mask_cmp(tuple, &h->tuple, &h->mask))
- return h;
- }
- return NULL;
-}
-
-struct ip_conntrack_helper *
-ip_conntrack_helper_find_get( const struct ip_conntrack_tuple *tuple)
-{
- struct ip_conntrack_helper *helper;
-
- /* need ip_conntrack_lock to assure that helper exists until
- * try_module_get() is called */
- read_lock_bh(&ip_conntrack_lock);
-
- helper = __ip_conntrack_helper_find(tuple);
- if (helper) {
- /* need to increase module usage count to assure helper will
- * not go away while the caller is e.g. busy putting a
- * conntrack in the hash that uses the helper */
- if (!try_module_get(helper->me))
- helper = NULL;
- }
-
- read_unlock_bh(&ip_conntrack_lock);
-
- return helper;
-}
-
-void ip_conntrack_helper_put(struct ip_conntrack_helper *helper)
-{
- module_put(helper->me);
-}
-
-struct ip_conntrack_protocol *
-__ip_conntrack_proto_find(u_int8_t protocol)
-{
- return ip_ct_protos[protocol];
-}
-
-/* this is guaranteed to always return a valid protocol helper, since
- * it falls back to generic_protocol */
-struct ip_conntrack_protocol *
-ip_conntrack_proto_find_get(u_int8_t protocol)
-{
- struct ip_conntrack_protocol *p;
-
- rcu_read_lock();
- p = __ip_conntrack_proto_find(protocol);
- if (p) {
- if (!try_module_get(p->me))
- p = &ip_conntrack_generic_protocol;
- }
- rcu_read_unlock();
-
- return p;
-}
-
-void ip_conntrack_proto_put(struct ip_conntrack_protocol *p)
-{
- module_put(p->me);
-}
-
-struct ip_conntrack *ip_conntrack_alloc(struct ip_conntrack_tuple *orig,
- struct ip_conntrack_tuple *repl)
-{
- struct ip_conntrack *conntrack;
-
- if (!ip_conntrack_hash_rnd_initted) {
- get_random_bytes(&ip_conntrack_hash_rnd, 4);
- ip_conntrack_hash_rnd_initted = 1;
- }
-
- /* We don't want any race condition at early drop stage */
- atomic_inc(&ip_conntrack_count);
-
- if (ip_conntrack_max
- && atomic_read(&ip_conntrack_count) > ip_conntrack_max) {
- unsigned int hash = hash_conntrack(orig);
- /* Try dropping from this hash chain. */
- if (!early_drop(&ip_conntrack_hash[hash])) {
- atomic_dec(&ip_conntrack_count);
- if (net_ratelimit())
- printk(KERN_WARNING
- "ip_conntrack: table full, dropping"
- " packet.\n");
- return ERR_PTR(-ENOMEM);
- }
- }
-
- conntrack = kmem_cache_zalloc(ip_conntrack_cachep, GFP_ATOMIC);
- if (!conntrack) {
- DEBUGP("Can't allocate conntrack.\n");
- atomic_dec(&ip_conntrack_count);
- return ERR_PTR(-ENOMEM);
- }
-
- atomic_set(&conntrack->ct_general.use, 1);
- conntrack->ct_general.destroy = destroy_conntrack;
- conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig;
- conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *repl;
- /* Don't set timer yet: wait for confirmation */
- init_timer(&conntrack->timeout);
- conntrack->timeout.data = (unsigned long)conntrack;
- conntrack->timeout.function = death_by_timeout;
-
- return conntrack;
-}
-
-void
-ip_conntrack_free(struct ip_conntrack *conntrack)
-{
- atomic_dec(&ip_conntrack_count);
- kmem_cache_free(ip_conntrack_cachep, conntrack);
-}
-
-/* Allocate a new conntrack: we return -ENOMEM if classification
- * failed due to stress. Otherwise it really is unclassifiable */
-static struct ip_conntrack_tuple_hash *
-init_conntrack(struct ip_conntrack_tuple *tuple,
- struct ip_conntrack_protocol *protocol,
- struct sk_buff *skb)
-{
- struct ip_conntrack *conntrack;
- struct ip_conntrack_tuple repl_tuple;
- struct ip_conntrack_expect *exp;
-
- if (!ip_ct_invert_tuple(&repl_tuple, tuple, protocol)) {
- DEBUGP("Can't invert tuple.\n");
- return NULL;
- }
-
- conntrack = ip_conntrack_alloc(tuple, &repl_tuple);
- if (conntrack == NULL || IS_ERR(conntrack))
- return (struct ip_conntrack_tuple_hash *)conntrack;
-
- if (!protocol->new(conntrack, skb)) {
- ip_conntrack_free(conntrack);
- return NULL;
- }
-
- write_lock_bh(&ip_conntrack_lock);
- exp = find_expectation(tuple);
-
- if (exp) {
- DEBUGP("conntrack: expectation arrives ct=%p exp=%p\n",
- conntrack, exp);
- /* Welcome, Mr. Bond. We've been expecting you... */
- __set_bit(IPS_EXPECTED_BIT, &conntrack->status);
- conntrack->master = exp->master;
-#ifdef CONFIG_IP_NF_CONNTRACK_MARK
- conntrack->mark = exp->master->mark;
-#endif
-#if defined(CONFIG_IP_NF_TARGET_MASQUERADE) || \
- defined(CONFIG_IP_NF_TARGET_MASQUERADE_MODULE)
- /* this is ugly, but there is no other place where to put it */
- conntrack->nat.masq_index = exp->master->nat.masq_index;
-#endif
-#ifdef CONFIG_IP_NF_CONNTRACK_SECMARK
- conntrack->secmark = exp->master->secmark;
-#endif
- nf_conntrack_get(&conntrack->master->ct_general);
- CONNTRACK_STAT_INC(expect_new);
- } else {
- conntrack->helper = __ip_conntrack_helper_find(&repl_tuple);
-
- CONNTRACK_STAT_INC(new);
- }
-
- /* Overload tuple linked list to put us in unconfirmed list. */
- list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
-
- write_unlock_bh(&ip_conntrack_lock);
-
- if (exp) {
- if (exp->expectfn)
- exp->expectfn(conntrack, exp);
- ip_conntrack_expect_put(exp);
- }
-
- return &conntrack->tuplehash[IP_CT_DIR_ORIGINAL];
-}
-
-/* On success, returns conntrack ptr, sets skb->nfct and ctinfo */
-static inline struct ip_conntrack *
-resolve_normal_ct(struct sk_buff *skb,
- struct ip_conntrack_protocol *proto,
- int *set_reply,
- unsigned int hooknum,
- enum ip_conntrack_info *ctinfo)
-{
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack *ct;
-
- IP_NF_ASSERT((skb->nh.iph->frag_off & htons(IP_OFFSET)) == 0);
-
- if (!ip_ct_get_tuple(skb->nh.iph, skb, skb->nh.iph->ihl*4,
- &tuple,proto))
- return NULL;
-
- /* look for tuple match */
- h = ip_conntrack_find_get(&tuple, NULL);
- if (!h) {
- h = init_conntrack(&tuple, proto, skb);
- if (!h)
- return NULL;
- if (IS_ERR(h))
- return (void *)h;
- }
- ct = tuplehash_to_ctrack(h);
-
- /* It exists; we have (non-exclusive) reference. */
- if (DIRECTION(h) == IP_CT_DIR_REPLY) {
- *ctinfo = IP_CT_ESTABLISHED + IP_CT_IS_REPLY;
- /* Please set reply bit if this packet OK */
- *set_reply = 1;
- } else {
- /* Once we've had two way comms, always ESTABLISHED. */
- if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
- DEBUGP("ip_conntrack_in: normal packet for %p\n",
- ct);
- *ctinfo = IP_CT_ESTABLISHED;
- } else if (test_bit(IPS_EXPECTED_BIT, &ct->status)) {
- DEBUGP("ip_conntrack_in: related packet for %p\n",
- ct);
- *ctinfo = IP_CT_RELATED;
- } else {
- DEBUGP("ip_conntrack_in: new packet for %p\n",
- ct);
- *ctinfo = IP_CT_NEW;
- }
- *set_reply = 0;
- }
- skb->nfct = &ct->ct_general;
- skb->nfctinfo = *ctinfo;
- return ct;
-}
-
-/* Netfilter hook itself. */
-unsigned int ip_conntrack_in(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- struct ip_conntrack_protocol *proto;
- int set_reply = 0;
- int ret;
-
- /* Previously seen (loopback or untracked)? Ignore. */
- if ((*pskb)->nfct) {
- CONNTRACK_STAT_INC_ATOMIC(ignore);
- return NF_ACCEPT;
- }
-
- /* Never happen */
- if ((*pskb)->nh.iph->frag_off & htons(IP_OFFSET)) {
- if (net_ratelimit()) {
- printk(KERN_ERR "ip_conntrack_in: Frag of proto %u (hook=%u)\n",
- (*pskb)->nh.iph->protocol, hooknum);
- }
- return NF_DROP;
- }
-
-/* Doesn't cover locally-generated broadcast, so not worth it. */
-#if 0
- /* Ignore broadcast: no `connection'. */
- if ((*pskb)->pkt_type == PACKET_BROADCAST) {
- printk("Broadcast packet!\n");
- return NF_ACCEPT;
- } else if (((*pskb)->nh.iph->daddr & htonl(0x000000FF))
- == htonl(0x000000FF)) {
- printk("Should bcast: %u.%u.%u.%u->%u.%u.%u.%u (sk=%p, ptype=%u)\n",
- NIPQUAD((*pskb)->nh.iph->saddr),
- NIPQUAD((*pskb)->nh.iph->daddr),
- (*pskb)->sk, (*pskb)->pkt_type);
- }
-#endif
-
- /* rcu_read_lock()ed by nf_hook_slow */
- proto = __ip_conntrack_proto_find((*pskb)->nh.iph->protocol);
-
- /* It may be an special packet, error, unclean...
- * inverse of the return code tells to the netfilter
- * core what to do with the packet. */
- if (proto->error != NULL
- && (ret = proto->error(*pskb, &ctinfo, hooknum)) <= 0) {
- CONNTRACK_STAT_INC_ATOMIC(error);
- CONNTRACK_STAT_INC_ATOMIC(invalid);
- return -ret;
- }
-
- if (!(ct = resolve_normal_ct(*pskb, proto,&set_reply,hooknum,&ctinfo))) {
- /* Not valid part of a connection */
- CONNTRACK_STAT_INC_ATOMIC(invalid);
- return NF_ACCEPT;
- }
-
- if (IS_ERR(ct)) {
- /* Too stressed to deal. */
- CONNTRACK_STAT_INC_ATOMIC(drop);
- return NF_DROP;
- }
-
- IP_NF_ASSERT((*pskb)->nfct);
-
- ret = proto->packet(ct, *pskb, ctinfo);
- if (ret < 0) {
- /* Invalid: inverse of the return code tells
- * the netfilter core what to do*/
- nf_conntrack_put((*pskb)->nfct);
- (*pskb)->nfct = NULL;
- CONNTRACK_STAT_INC_ATOMIC(invalid);
- return -ret;
- }
-
- if (set_reply && !test_and_set_bit(IPS_SEEN_REPLY_BIT, &ct->status))
- ip_conntrack_event_cache(IPCT_STATUS, *pskb);
-
- return ret;
-}
-
-int invert_tuplepr(struct ip_conntrack_tuple *inverse,
- const struct ip_conntrack_tuple *orig)
-{
- struct ip_conntrack_protocol *proto;
- int ret;
-
- rcu_read_lock();
- proto = __ip_conntrack_proto_find(orig->dst.protonum);
- ret = ip_ct_invert_tuple(inverse, orig, proto);
- rcu_read_unlock();
-
- return ret;
-}
-
-/* Would two expected things clash? */
-static inline int expect_clash(const struct ip_conntrack_expect *a,
- const struct ip_conntrack_expect *b)
-{
- /* Part covered by intersection of masks must be unequal,
- otherwise they clash */
- struct ip_conntrack_tuple intersect_mask
- = { { a->mask.src.ip & b->mask.src.ip,
- { a->mask.src.u.all & b->mask.src.u.all } },
- { a->mask.dst.ip & b->mask.dst.ip,
- { a->mask.dst.u.all & b->mask.dst.u.all },
- a->mask.dst.protonum & b->mask.dst.protonum } };
-
- return ip_ct_tuple_mask_cmp(&a->tuple, &b->tuple, &intersect_mask);
-}
-
-static inline int expect_matches(const struct ip_conntrack_expect *a,
- const struct ip_conntrack_expect *b)
-{
- return a->master == b->master
- && ip_ct_tuple_equal(&a->tuple, &b->tuple)
- && ip_ct_tuple_equal(&a->mask, &b->mask);
-}
-
-/* Generally a bad idea to call this: could have matched already. */
-void ip_conntrack_unexpect_related(struct ip_conntrack_expect *exp)
-{
- struct ip_conntrack_expect *i;
-
- write_lock_bh(&ip_conntrack_lock);
- /* choose the the oldest expectation to evict */
- list_for_each_entry_reverse(i, &ip_conntrack_expect_list, list) {
- if (expect_matches(i, exp) && del_timer(&i->timeout)) {
- ip_ct_unlink_expect(i);
- write_unlock_bh(&ip_conntrack_lock);
- ip_conntrack_expect_put(i);
- return;
- }
- }
- write_unlock_bh(&ip_conntrack_lock);
-}
-
-/* We don't increase the master conntrack refcount for non-fulfilled
- * conntracks. During the conntrack destruction, the expectations are
- * always killed before the conntrack itself */
-struct ip_conntrack_expect *ip_conntrack_expect_alloc(struct ip_conntrack *me)
-{
- struct ip_conntrack_expect *new;
-
- new = kmem_cache_alloc(ip_conntrack_expect_cachep, GFP_ATOMIC);
- if (!new) {
- DEBUGP("expect_related: OOM allocating expect\n");
- return NULL;
- }
- new->master = me;
- atomic_set(&new->use, 1);
- return new;
-}
-
-void ip_conntrack_expect_put(struct ip_conntrack_expect *exp)
-{
- if (atomic_dec_and_test(&exp->use))
- kmem_cache_free(ip_conntrack_expect_cachep, exp);
-}
-
-static void ip_conntrack_expect_insert(struct ip_conntrack_expect *exp)
-{
- atomic_inc(&exp->use);
- exp->master->expecting++;
- list_add(&exp->list, &ip_conntrack_expect_list);
-
- init_timer(&exp->timeout);
- exp->timeout.data = (unsigned long)exp;
- exp->timeout.function = expectation_timed_out;
- exp->timeout.expires = jiffies + exp->master->helper->timeout * HZ;
- add_timer(&exp->timeout);
-
- exp->id = ++ip_conntrack_expect_next_id;
- atomic_inc(&exp->use);
- CONNTRACK_STAT_INC(expect_create);
-}
-
-/* Race with expectations being used means we could have none to find; OK. */
-static void evict_oldest_expect(struct ip_conntrack *master)
-{
- struct ip_conntrack_expect *i;
-
- list_for_each_entry_reverse(i, &ip_conntrack_expect_list, list) {
- if (i->master == master) {
- if (del_timer(&i->timeout)) {
- ip_ct_unlink_expect(i);
- ip_conntrack_expect_put(i);
- }
- break;
- }
- }
-}
-
-static inline int refresh_timer(struct ip_conntrack_expect *i)
-{
- if (!del_timer(&i->timeout))
- return 0;
-
- i->timeout.expires = jiffies + i->master->helper->timeout*HZ;
- add_timer(&i->timeout);
- return 1;
-}
-
-int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
-{
- struct ip_conntrack_expect *i;
- int ret;
-
- DEBUGP("ip_conntrack_expect_related %p\n", related_to);
- DEBUGP("tuple: "); DUMP_TUPLE(&expect->tuple);
- DEBUGP("mask: "); DUMP_TUPLE(&expect->mask);
-
- write_lock_bh(&ip_conntrack_lock);
- list_for_each_entry(i, &ip_conntrack_expect_list, list) {
- if (expect_matches(i, expect)) {
- /* Refresh timer: if it's dying, ignore.. */
- if (refresh_timer(i)) {
- ret = 0;
- goto out;
- }
- } else if (expect_clash(i, expect)) {
- ret = -EBUSY;
- goto out;
- }
- }
-
- /* Will be over limit? */
- if (expect->master->helper->max_expected &&
- expect->master->expecting >= expect->master->helper->max_expected)
- evict_oldest_expect(expect->master);
-
- ip_conntrack_expect_insert(expect);
- ip_conntrack_expect_event(IPEXP_NEW, expect);
- ret = 0;
-out:
- write_unlock_bh(&ip_conntrack_lock);
- return ret;
-}
-
-/* Alter reply tuple (maybe alter helper). This is for NAT, and is
- implicitly racy: see __ip_conntrack_confirm */
-void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
- const struct ip_conntrack_tuple *newreply)
-{
- write_lock_bh(&ip_conntrack_lock);
- /* Should be unconfirmed, so not in hash table yet */
- IP_NF_ASSERT(!is_confirmed(conntrack));
-
- DEBUGP("Altering reply tuple of %p to ", conntrack);
- DUMP_TUPLE(newreply);
-
- conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *newreply;
- if (!conntrack->master && conntrack->expecting == 0)
- conntrack->helper = __ip_conntrack_helper_find(newreply);
- write_unlock_bh(&ip_conntrack_lock);
-}
-
-int ip_conntrack_helper_register(struct ip_conntrack_helper *me)
-{
- BUG_ON(me->timeout == 0);
- write_lock_bh(&ip_conntrack_lock);
- list_add(&me->list, &helpers);
- write_unlock_bh(&ip_conntrack_lock);
-
- return 0;
-}
-
-struct ip_conntrack_helper *
-__ip_conntrack_helper_find_byname(const char *name)
-{
- struct ip_conntrack_helper *h;
-
- list_for_each_entry(h, &helpers, list) {
- if (!strcmp(h->name, name))
- return h;
- }
-
- return NULL;
-}
-
-static inline void unhelp(struct ip_conntrack_tuple_hash *i,
- const struct ip_conntrack_helper *me)
-{
- if (tuplehash_to_ctrack(i)->helper == me) {
- ip_conntrack_event(IPCT_HELPER, tuplehash_to_ctrack(i));
- tuplehash_to_ctrack(i)->helper = NULL;
- }
-}
-
-void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
-{
- unsigned int i;
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack_expect *exp, *tmp;
-
- /* Need write lock here, to delete helper. */
- write_lock_bh(&ip_conntrack_lock);
- list_del(&me->list);
-
- /* Get rid of expectations */
- list_for_each_entry_safe(exp, tmp, &ip_conntrack_expect_list, list) {
- if (exp->master->helper == me && del_timer(&exp->timeout)) {
- ip_ct_unlink_expect(exp);
- ip_conntrack_expect_put(exp);
- }
- }
- /* Get rid of expecteds, set helpers to NULL. */
- list_for_each_entry(h, &unconfirmed, list)
- unhelp(h, me);
- for (i = 0; i < ip_conntrack_htable_size; i++) {
- list_for_each_entry(h, &ip_conntrack_hash[i], list)
- unhelp(h, me);
- }
- write_unlock_bh(&ip_conntrack_lock);
-
- /* Someone could be still looking at the helper in a bh. */
- synchronize_net();
-}
-
-/* Refresh conntrack for this many jiffies and do accounting if do_acct is 1 */
-void __ip_ct_refresh_acct(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- const struct sk_buff *skb,
- unsigned long extra_jiffies,
- int do_acct)
-{
- int event = 0;
-
- IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct);
- IP_NF_ASSERT(skb);
-
- write_lock_bh(&ip_conntrack_lock);
-
- /* Only update if this is not a fixed timeout */
- if (test_bit(IPS_FIXED_TIMEOUT_BIT, &ct->status)) {
- write_unlock_bh(&ip_conntrack_lock);
- return;
- }
-
- /* If not in hash table, timer will not be active yet */
- if (!is_confirmed(ct)) {
- ct->timeout.expires = extra_jiffies;
- event = IPCT_REFRESH;
- } else {
- /* Need del_timer for race avoidance (may already be dying). */
- if (del_timer(&ct->timeout)) {
- ct->timeout.expires = jiffies + extra_jiffies;
- add_timer(&ct->timeout);
- event = IPCT_REFRESH;
- }
- }
-
-#ifdef CONFIG_IP_NF_CT_ACCT
- if (do_acct) {
- ct->counters[CTINFO2DIR(ctinfo)].packets++;
- ct->counters[CTINFO2DIR(ctinfo)].bytes +=
- ntohs(skb->nh.iph->tot_len);
- if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000)
- || (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000))
- event |= IPCT_COUNTER_FILLING;
- }
-#endif
-
- write_unlock_bh(&ip_conntrack_lock);
-
- /* must be unlocked when calling event cache */
- if (event)
- ip_conntrack_event_cache(event, skb);
-}
-
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
-/* Generic function for tcp/udp/sctp/dccp and alike. This needs to be
- * in ip_conntrack_core, since we don't want the protocols to autoload
- * or depend on ctnetlink */
-int ip_ct_port_tuple_to_nfattr(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple)
-{
- NFA_PUT(skb, CTA_PROTO_SRC_PORT, sizeof(__be16),
- &tuple->src.u.tcp.port);
- NFA_PUT(skb, CTA_PROTO_DST_PORT, sizeof(__be16),
- &tuple->dst.u.tcp.port);
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-int ip_ct_port_nfattr_to_tuple(struct nfattr *tb[],
- struct ip_conntrack_tuple *t)
-{
- if (!tb[CTA_PROTO_SRC_PORT-1] || !tb[CTA_PROTO_DST_PORT-1])
- return -EINVAL;
-
- t->src.u.tcp.port =
- *(__be16 *)NFA_DATA(tb[CTA_PROTO_SRC_PORT-1]);
- t->dst.u.tcp.port =
- *(__be16 *)NFA_DATA(tb[CTA_PROTO_DST_PORT-1]);
-
- return 0;
-}
-#endif
-
-/* Returns new sk_buff, or NULL */
-struct sk_buff *
-ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user)
-{
- skb_orphan(skb);
-
- local_bh_disable();
- skb = ip_defrag(skb, user);
- local_bh_enable();
-
- if (skb)
- ip_send_check(skb->nh.iph);
- return skb;
-}
-
-/* Used by ipt_REJECT. */
-static void ip_conntrack_attach(struct sk_buff *nskb, struct sk_buff *skb)
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
-
- /* This ICMP is in reverse direction to the packet which caused it */
- ct = ip_conntrack_get(skb, &ctinfo);
-
- if (CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL)
- ctinfo = IP_CT_RELATED + IP_CT_IS_REPLY;
- else
- ctinfo = IP_CT_RELATED;
-
- /* Attach to new skbuff, and increment count */
- nskb->nfct = &ct->ct_general;
- nskb->nfctinfo = ctinfo;
- nf_conntrack_get(nskb->nfct);
-}
-
-/* Bring out ya dead! */
-static struct ip_conntrack *
-get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
- void *data, unsigned int *bucket)
-{
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack *ct;
-
- write_lock_bh(&ip_conntrack_lock);
- for (; *bucket < ip_conntrack_htable_size; (*bucket)++) {
- list_for_each_entry(h, &ip_conntrack_hash[*bucket], list) {
- ct = tuplehash_to_ctrack(h);
- if (iter(ct, data))
- goto found;
- }
- }
- list_for_each_entry(h, &unconfirmed, list) {
- ct = tuplehash_to_ctrack(h);
- if (iter(ct, data))
- set_bit(IPS_DYING_BIT, &ct->status);
- }
- write_unlock_bh(&ip_conntrack_lock);
- return NULL;
-
-found:
- atomic_inc(&ct->ct_general.use);
- write_unlock_bh(&ip_conntrack_lock);
- return ct;
-}
-
-void
-ip_ct_iterate_cleanup(int (*iter)(struct ip_conntrack *i, void *), void *data)
-{
- struct ip_conntrack *ct;
- unsigned int bucket = 0;
-
- while ((ct = get_next_corpse(iter, data, &bucket)) != NULL) {
- /* Time to push up daises... */
- if (del_timer(&ct->timeout))
- death_by_timeout((unsigned long)ct);
- /* ... else the timer will get him soon. */
-
- ip_conntrack_put(ct);
- }
-}
-
-/* Fast function for those who don't want to parse /proc (and I don't
- blame them). */
-/* Reversing the socket's dst/src point of view gives us the reply
- mapping. */
-static int
-getorigdst(struct sock *sk, int optval, void __user *user, int *len)
-{
- struct inet_sock *inet = inet_sk(sk);
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack_tuple tuple;
-
- IP_CT_TUPLE_U_BLANK(&tuple);
- tuple.src.ip = inet->rcv_saddr;
- tuple.src.u.tcp.port = inet->sport;
- tuple.dst.ip = inet->daddr;
- tuple.dst.u.tcp.port = inet->dport;
- tuple.dst.protonum = IPPROTO_TCP;
-
- /* We only do TCP at the moment: is there a better way? */
- if (strcmp(sk->sk_prot->name, "TCP")) {
- DEBUGP("SO_ORIGINAL_DST: Not a TCP socket\n");
- return -ENOPROTOOPT;
- }
-
- if ((unsigned int) *len < sizeof(struct sockaddr_in)) {
- DEBUGP("SO_ORIGINAL_DST: len %u not %u\n",
- *len, sizeof(struct sockaddr_in));
- return -EINVAL;
- }
-
- h = ip_conntrack_find_get(&tuple, NULL);
- if (h) {
- struct sockaddr_in sin;
- struct ip_conntrack *ct = tuplehash_to_ctrack(h);
-
- sin.sin_family = AF_INET;
- sin.sin_port = ct->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple.dst.u.tcp.port;
- sin.sin_addr.s_addr = ct->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple.dst.ip;
- memset(sin.sin_zero, 0, sizeof(sin.sin_zero));
-
- DEBUGP("SO_ORIGINAL_DST: %u.%u.%u.%u %u\n",
- NIPQUAD(sin.sin_addr.s_addr), ntohs(sin.sin_port));
- ip_conntrack_put(ct);
- if (copy_to_user(user, &sin, sizeof(sin)) != 0)
- return -EFAULT;
- else
- return 0;
- }
- DEBUGP("SO_ORIGINAL_DST: Can't find %u.%u.%u.%u/%u-%u.%u.%u.%u/%u.\n",
- NIPQUAD(tuple.src.ip), ntohs(tuple.src.u.tcp.port),
- NIPQUAD(tuple.dst.ip), ntohs(tuple.dst.u.tcp.port));
- return -ENOENT;
-}
-
-static struct nf_sockopt_ops so_getorigdst = {
- .pf = PF_INET,
- .get_optmin = SO_ORIGINAL_DST,
- .get_optmax = SO_ORIGINAL_DST+1,
- .get = &getorigdst,
-};
-
-static int kill_all(struct ip_conntrack *i, void *data)
-{
- return 1;
-}
-
-void ip_conntrack_flush(void)
-{
- ip_ct_iterate_cleanup(kill_all, NULL);
-}
-
-static void free_conntrack_hash(struct list_head *hash, int vmalloced,int size)
-{
- if (vmalloced)
- vfree(hash);
- else
- free_pages((unsigned long)hash,
- get_order(sizeof(struct list_head) * size));
-}
-
-/* Mishearing the voices in his head, our hero wonders how he's
- supposed to kill the mall. */
-void ip_conntrack_cleanup(void)
-{
- rcu_assign_pointer(ip_ct_attach, NULL);
-
- /* This makes sure all current packets have passed through
- netfilter framework. Roll on, two-stage module
- delete... */
- synchronize_net();
-
- ip_ct_event_cache_flush();
- i_see_dead_people:
- ip_conntrack_flush();
- if (atomic_read(&ip_conntrack_count) != 0) {
- schedule();
- goto i_see_dead_people;
- }
- /* wait until all references to ip_conntrack_untracked are dropped */
- while (atomic_read(&ip_conntrack_untracked.ct_general.use) > 1)
- schedule();
-
- kmem_cache_destroy(ip_conntrack_cachep);
- kmem_cache_destroy(ip_conntrack_expect_cachep);
- free_conntrack_hash(ip_conntrack_hash, ip_conntrack_vmalloc,
- ip_conntrack_htable_size);
- nf_unregister_sockopt(&so_getorigdst);
-}
-
-static struct list_head *alloc_hashtable(int size, int *vmalloced)
-{
- struct list_head *hash;
- unsigned int i;
-
- *vmalloced = 0;
- hash = (void*)__get_free_pages(GFP_KERNEL,
- get_order(sizeof(struct list_head)
- * size));
- if (!hash) {
- *vmalloced = 1;
- printk(KERN_WARNING"ip_conntrack: falling back to vmalloc.\n");
- hash = vmalloc(sizeof(struct list_head) * size);
- }
-
- if (hash)
- for (i = 0; i < size; i++)
- INIT_LIST_HEAD(&hash[i]);
-
- return hash;
-}
-
-static int set_hashsize(const char *val, struct kernel_param *kp)
-{
- int i, bucket, hashsize, vmalloced;
- int old_vmalloced, old_size;
- int rnd;
- struct list_head *hash, *old_hash;
- struct ip_conntrack_tuple_hash *h;
-
- /* On boot, we can set this without any fancy locking. */
- if (!ip_conntrack_htable_size)
- return param_set_int(val, kp);
-
- hashsize = simple_strtol(val, NULL, 0);
- if (!hashsize)
- return -EINVAL;
-
- hash = alloc_hashtable(hashsize, &vmalloced);
- if (!hash)
- return -ENOMEM;
-
- /* We have to rehash for the new table anyway, so we also can
- * use a new random seed */
- get_random_bytes(&rnd, 4);
-
- write_lock_bh(&ip_conntrack_lock);
- for (i = 0; i < ip_conntrack_htable_size; i++) {
- while (!list_empty(&ip_conntrack_hash[i])) {
- h = list_entry(ip_conntrack_hash[i].next,
- struct ip_conntrack_tuple_hash, list);
- list_del(&h->list);
- bucket = __hash_conntrack(&h->tuple, hashsize, rnd);
- list_add_tail(&h->list, &hash[bucket]);
- }
- }
- old_size = ip_conntrack_htable_size;
- old_vmalloced = ip_conntrack_vmalloc;
- old_hash = ip_conntrack_hash;
-
- ip_conntrack_htable_size = hashsize;
- ip_conntrack_vmalloc = vmalloced;
- ip_conntrack_hash = hash;
- ip_conntrack_hash_rnd = rnd;
- write_unlock_bh(&ip_conntrack_lock);
-
- free_conntrack_hash(old_hash, old_vmalloced, old_size);
- return 0;
-}
-
-module_param_call(hashsize, set_hashsize, param_get_uint,
- &ip_conntrack_htable_size, 0600);
-
-int __init ip_conntrack_init(void)
-{
- unsigned int i;
- int ret;
-
- /* Idea from tcp.c: use 1/16384 of memory. On i386: 32MB
- * machine has 256 buckets. >= 1GB machines have 8192 buckets. */
- if (!ip_conntrack_htable_size) {
- ip_conntrack_htable_size
- = (((num_physpages << PAGE_SHIFT) / 16384)
- / sizeof(struct list_head));
- if (num_physpages > (1024 * 1024 * 1024 / PAGE_SIZE))
- ip_conntrack_htable_size = 8192;
- if (ip_conntrack_htable_size < 16)
- ip_conntrack_htable_size = 16;
- }
- ip_conntrack_max = 8 * ip_conntrack_htable_size;
-
- printk("ip_conntrack version %s (%u buckets, %d max)"
- " - %Zd bytes per conntrack\n", IP_CONNTRACK_VERSION,
- ip_conntrack_htable_size, ip_conntrack_max,
- sizeof(struct ip_conntrack));
-
- ret = nf_register_sockopt(&so_getorigdst);
- if (ret != 0) {
- printk(KERN_ERR "Unable to register netfilter socket option\n");
- return ret;
- }
-
- ip_conntrack_hash = alloc_hashtable(ip_conntrack_htable_size,
- &ip_conntrack_vmalloc);
- if (!ip_conntrack_hash) {
- printk(KERN_ERR "Unable to create ip_conntrack_hash\n");
- goto err_unreg_sockopt;
- }
-
- ip_conntrack_cachep = kmem_cache_create("ip_conntrack",
- sizeof(struct ip_conntrack), 0,
- 0, NULL, NULL);
- if (!ip_conntrack_cachep) {
- printk(KERN_ERR "Unable to create ip_conntrack slab cache\n");
- goto err_free_hash;
- }
-
- ip_conntrack_expect_cachep = kmem_cache_create("ip_conntrack_expect",
- sizeof(struct ip_conntrack_expect),
- 0, 0, NULL, NULL);
- if (!ip_conntrack_expect_cachep) {
- printk(KERN_ERR "Unable to create ip_expect slab cache\n");
- goto err_free_conntrack_slab;
- }
-
- /* Don't NEED lock here, but good form anyway. */
- write_lock_bh(&ip_conntrack_lock);
- for (i = 0; i < MAX_IP_CT_PROTO; i++)
- rcu_assign_pointer(ip_ct_protos[i], &ip_conntrack_generic_protocol);
- /* Sew in builtin protocols. */
- rcu_assign_pointer(ip_ct_protos[IPPROTO_TCP], &ip_conntrack_protocol_tcp);
- rcu_assign_pointer(ip_ct_protos[IPPROTO_UDP], &ip_conntrack_protocol_udp);
- rcu_assign_pointer(ip_ct_protos[IPPROTO_ICMP], &ip_conntrack_protocol_icmp);
- write_unlock_bh(&ip_conntrack_lock);
-
- /* For use by ipt_REJECT */
- rcu_assign_pointer(ip_ct_attach, ip_conntrack_attach);
-
- /* Set up fake conntrack:
- - to never be deleted, not in any hashes */
- atomic_set(&ip_conntrack_untracked.ct_general.use, 1);
- /* - and look it like as a confirmed connection */
- set_bit(IPS_CONFIRMED_BIT, &ip_conntrack_untracked.status);
-
- return ret;
-
-err_free_conntrack_slab:
- kmem_cache_destroy(ip_conntrack_cachep);
-err_free_hash:
- free_conntrack_hash(ip_conntrack_hash, ip_conntrack_vmalloc,
- ip_conntrack_htable_size);
-err_unreg_sockopt:
- nf_unregister_sockopt(&so_getorigdst);
-
- return -ENOMEM;
-}
+++ /dev/null
-/* FTP extension for IP connection tracking. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/ctype.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
-#include <linux/moduleparam.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Rusty Russell <rusty@rustcorp.com.au>");
-MODULE_DESCRIPTION("ftp connection tracking helper");
-
-/* This is slow, but it's simple. --RR */
-static char *ftp_buffer;
-static DEFINE_SPINLOCK(ip_ftp_lock);
-
-#define MAX_PORTS 8
-static unsigned short ports[MAX_PORTS];
-static int ports_c;
-module_param_array(ports, ushort, &ports_c, 0400);
-
-static int loose;
-module_param(loose, bool, 0600);
-
-unsigned int (*ip_nat_ftp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- enum ip_ct_ftp_type type,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp,
- u32 *seq);
-EXPORT_SYMBOL_GPL(ip_nat_ftp_hook);
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-static int try_rfc959(const char *, size_t, u_int32_t [], char);
-static int try_eprt(const char *, size_t, u_int32_t [], char);
-static int try_epsv_response(const char *, size_t, u_int32_t [], char);
-
-static const struct ftp_search {
- const char *pattern;
- size_t plen;
- char skip;
- char term;
- enum ip_ct_ftp_type ftptype;
- int (*getnum)(const char *, size_t, u_int32_t[], char);
-} search[IP_CT_DIR_MAX][2] = {
- [IP_CT_DIR_ORIGINAL] = {
- {
- .pattern = "PORT",
- .plen = sizeof("PORT") - 1,
- .skip = ' ',
- .term = '\r',
- .ftptype = IP_CT_FTP_PORT,
- .getnum = try_rfc959,
- },
- {
- .pattern = "EPRT",
- .plen = sizeof("EPRT") - 1,
- .skip = ' ',
- .term = '\r',
- .ftptype = IP_CT_FTP_EPRT,
- .getnum = try_eprt,
- },
- },
- [IP_CT_DIR_REPLY] = {
- {
- .pattern = "227 ",
- .plen = sizeof("227 ") - 1,
- .skip = '(',
- .term = ')',
- .ftptype = IP_CT_FTP_PASV,
- .getnum = try_rfc959,
- },
- {
- .pattern = "229 ",
- .plen = sizeof("229 ") - 1,
- .skip = '(',
- .term = ')',
- .ftptype = IP_CT_FTP_EPSV,
- .getnum = try_epsv_response,
- },
- },
-};
-
-static int try_number(const char *data, size_t dlen, u_int32_t array[],
- int array_size, char sep, char term)
-{
- u_int32_t i, len;
-
- memset(array, 0, sizeof(array[0])*array_size);
-
- /* Keep data pointing at next char. */
- for (i = 0, len = 0; len < dlen && i < array_size; len++, data++) {
- if (*data >= '0' && *data <= '9') {
- array[i] = array[i]*10 + *data - '0';
- }
- else if (*data == sep)
- i++;
- else {
- /* Unexpected character; true if it's the
- terminator and we're finished. */
- if (*data == term && i == array_size - 1)
- return len;
-
- DEBUGP("Char %u (got %u nums) `%u' unexpected\n",
- len, i, *data);
- return 0;
- }
- }
- DEBUGP("Failed to fill %u numbers separated by %c\n", array_size, sep);
-
- return 0;
-}
-
-/* Returns 0, or length of numbers: 192,168,1,1,5,6 */
-static int try_rfc959(const char *data, size_t dlen, u_int32_t array[6],
- char term)
-{
- return try_number(data, dlen, array, 6, ',', term);
-}
-
-/* Grab port: number up to delimiter */
-static int get_port(const char *data, int start, size_t dlen, char delim,
- u_int32_t array[2])
-{
- u_int16_t port = 0;
- int i;
-
- for (i = start; i < dlen; i++) {
- /* Finished? */
- if (data[i] == delim) {
- if (port == 0)
- break;
- array[0] = port >> 8;
- array[1] = port;
- return i + 1;
- }
- else if (data[i] >= '0' && data[i] <= '9')
- port = port*10 + data[i] - '0';
- else /* Some other crap */
- break;
- }
- return 0;
-}
-
-/* Returns 0, or length of numbers: |1|132.235.1.2|6275| */
-static int try_eprt(const char *data, size_t dlen, u_int32_t array[6],
- char term)
-{
- char delim;
- int length;
-
- /* First character is delimiter, then "1" for IPv4, then
- delimiter again. */
- if (dlen <= 3) return 0;
- delim = data[0];
- if (isdigit(delim) || delim < 33 || delim > 126
- || data[1] != '1' || data[2] != delim)
- return 0;
-
- DEBUGP("EPRT: Got |1|!\n");
- /* Now we have IP address. */
- length = try_number(data + 3, dlen - 3, array, 4, '.', delim);
- if (length == 0)
- return 0;
-
- DEBUGP("EPRT: Got IP address!\n");
- /* Start offset includes initial "|1|", and trailing delimiter */
- return get_port(data, 3 + length + 1, dlen, delim, array+4);
-}
-
-/* Returns 0, or length of numbers: |||6446| */
-static int try_epsv_response(const char *data, size_t dlen, u_int32_t array[6],
- char term)
-{
- char delim;
-
- /* Three delimiters. */
- if (dlen <= 3) return 0;
- delim = data[0];
- if (isdigit(delim) || delim < 33 || delim > 126
- || data[1] != delim || data[2] != delim)
- return 0;
-
- return get_port(data, 3, dlen, delim, array+4);
-}
-
-/* Return 1 for match, 0 for accept, -1 for partial. */
-static int find_pattern(const char *data, size_t dlen,
- const char *pattern, size_t plen,
- char skip, char term,
- unsigned int *numoff,
- unsigned int *numlen,
- u_int32_t array[6],
- int (*getnum)(const char *, size_t, u_int32_t[], char))
-{
- size_t i;
-
- DEBUGP("find_pattern `%s': dlen = %u\n", pattern, dlen);
- if (dlen == 0)
- return 0;
-
- if (dlen <= plen) {
- /* Short packet: try for partial? */
- if (strnicmp(data, pattern, dlen) == 0)
- return -1;
- else return 0;
- }
-
- if (strnicmp(data, pattern, plen) != 0) {
-#if 0
- size_t i;
-
- DEBUGP("ftp: string mismatch\n");
- for (i = 0; i < plen; i++) {
- DEBUGP("ftp:char %u `%c'(%u) vs `%c'(%u)\n",
- i, data[i], data[i],
- pattern[i], pattern[i]);
- }
-#endif
- return 0;
- }
-
- DEBUGP("Pattern matches!\n");
- /* Now we've found the constant string, try to skip
- to the 'skip' character */
- for (i = plen; data[i] != skip; i++)
- if (i == dlen - 1) return -1;
-
- /* Skip over the last character */
- i++;
-
- DEBUGP("Skipped up to `%c'!\n", skip);
-
- *numoff = i;
- *numlen = getnum(data + i, dlen - i, array, term);
- if (!*numlen)
- return -1;
-
- DEBUGP("Match succeeded!\n");
- return 1;
-}
-
-/* Look up to see if we're just after a \n. */
-static int find_nl_seq(u32 seq, const struct ip_ct_ftp_master *info, int dir)
-{
- unsigned int i;
-
- for (i = 0; i < info->seq_aft_nl_num[dir]; i++)
- if (info->seq_aft_nl[dir][i] == seq)
- return 1;
- return 0;
-}
-
-/* We don't update if it's older than what we have. */
-static void update_nl_seq(u32 nl_seq, struct ip_ct_ftp_master *info, int dir,
- struct sk_buff *skb)
-{
- unsigned int i, oldest = NUM_SEQ_TO_REMEMBER;
-
- /* Look for oldest: if we find exact match, we're done. */
- for (i = 0; i < info->seq_aft_nl_num[dir]; i++) {
- if (info->seq_aft_nl[dir][i] == nl_seq)
- return;
-
- if (oldest == info->seq_aft_nl_num[dir]
- || before(info->seq_aft_nl[dir][i], oldest))
- oldest = i;
- }
-
- if (info->seq_aft_nl_num[dir] < NUM_SEQ_TO_REMEMBER) {
- info->seq_aft_nl[dir][info->seq_aft_nl_num[dir]++] = nl_seq;
- ip_conntrack_event_cache(IPCT_HELPINFO_VOLATILE, skb);
- } else if (oldest != NUM_SEQ_TO_REMEMBER) {
- info->seq_aft_nl[dir][oldest] = nl_seq;
- ip_conntrack_event_cache(IPCT_HELPINFO_VOLATILE, skb);
- }
-}
-
-static int help(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- unsigned int dataoff, datalen;
- struct tcphdr _tcph, *th;
- char *fb_ptr;
- int ret;
- u32 seq, array[6] = { 0 };
- int dir = CTINFO2DIR(ctinfo);
- unsigned int matchlen, matchoff;
- struct ip_ct_ftp_master *ct_ftp_info = &ct->help.ct_ftp_info;
- struct ip_conntrack_expect *exp;
- unsigned int i;
- int found = 0, ends_in_nl;
- typeof(ip_nat_ftp_hook) ip_nat_ftp;
-
- /* Until there's been traffic both ways, don't look in packets. */
- if (ctinfo != IP_CT_ESTABLISHED
- && ctinfo != IP_CT_ESTABLISHED+IP_CT_IS_REPLY) {
- DEBUGP("ftp: Conntrackinfo = %u\n", ctinfo);
- return NF_ACCEPT;
- }
-
- th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl*4,
- sizeof(_tcph), &_tcph);
- if (th == NULL)
- return NF_ACCEPT;
-
- dataoff = (*pskb)->nh.iph->ihl*4 + th->doff*4;
- /* No data? */
- if (dataoff >= (*pskb)->len) {
- DEBUGP("ftp: pskblen = %u\n", (*pskb)->len);
- return NF_ACCEPT;
- }
- datalen = (*pskb)->len - dataoff;
-
- spin_lock_bh(&ip_ftp_lock);
- fb_ptr = skb_header_pointer(*pskb, dataoff,
- (*pskb)->len - dataoff, ftp_buffer);
- BUG_ON(fb_ptr == NULL);
-
- ends_in_nl = (fb_ptr[datalen - 1] == '\n');
- seq = ntohl(th->seq) + datalen;
-
- /* Look up to see if we're just after a \n. */
- if (!find_nl_seq(ntohl(th->seq), ct_ftp_info, dir)) {
- /* Now if this ends in \n, update ftp info. */
- DEBUGP("ip_conntrack_ftp_help: wrong seq pos %s(%u) or %s(%u)\n",
- ct_ftp_info->seq_aft_nl[0][dir]
- old_seq_aft_nl_set ? "":"(UNSET) ", old_seq_aft_nl);
- ret = NF_ACCEPT;
- goto out_update_nl;
- }
-
- /* Initialize IP array to expected address (it's not mentioned
- in EPSV responses) */
- array[0] = (ntohl(ct->tuplehash[dir].tuple.src.ip) >> 24) & 0xFF;
- array[1] = (ntohl(ct->tuplehash[dir].tuple.src.ip) >> 16) & 0xFF;
- array[2] = (ntohl(ct->tuplehash[dir].tuple.src.ip) >> 8) & 0xFF;
- array[3] = ntohl(ct->tuplehash[dir].tuple.src.ip) & 0xFF;
-
- for (i = 0; i < ARRAY_SIZE(search[dir]); i++) {
- found = find_pattern(fb_ptr, (*pskb)->len - dataoff,
- search[dir][i].pattern,
- search[dir][i].plen,
- search[dir][i].skip,
- search[dir][i].term,
- &matchoff, &matchlen,
- array,
- search[dir][i].getnum);
- if (found) break;
- }
- if (found == -1) {
- /* We don't usually drop packets. After all, this is
- connection tracking, not packet filtering.
- However, it is necessary for accurate tracking in
- this case. */
- if (net_ratelimit())
- printk("conntrack_ftp: partial %s %u+%u\n",
- search[dir][i].pattern,
- ntohl(th->seq), datalen);
- ret = NF_DROP;
- goto out;
- } else if (found == 0) { /* No match */
- ret = NF_ACCEPT;
- goto out_update_nl;
- }
-
- DEBUGP("conntrack_ftp: match `%s' (%u bytes at %u)\n",
- fb_ptr + matchoff, matchlen, ntohl(th->seq) + matchoff);
-
- /* Allocate expectation which will be inserted */
- exp = ip_conntrack_expect_alloc(ct);
- if (exp == NULL) {
- ret = NF_DROP;
- goto out;
- }
-
- /* We refer to the reverse direction ("!dir") tuples here,
- * because we're expecting something in the other direction.
- * Doesn't matter unless NAT is happening. */
- exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
-
- if (htonl((array[0] << 24) | (array[1] << 16) | (array[2] << 8) | array[3])
- != ct->tuplehash[dir].tuple.src.ip) {
- /* Enrico Scholz's passive FTP to partially RNAT'd ftp
- server: it really wants us to connect to a
- different IP address. Simply don't record it for
- NAT. */
- DEBUGP("conntrack_ftp: NOT RECORDING: %u,%u,%u,%u != %u.%u.%u.%u\n",
- array[0], array[1], array[2], array[3],
- NIPQUAD(ct->tuplehash[dir].tuple.src.ip));
-
- /* Thanks to Cristiano Lincoln Mattos
- <lincoln@cesar.org.br> for reporting this potential
- problem (DMZ machines opening holes to internal
- networks, or the packet filter itself). */
- if (!loose) {
- ret = NF_ACCEPT;
- goto out_put_expect;
- }
- exp->tuple.dst.ip = htonl((array[0] << 24) | (array[1] << 16)
- | (array[2] << 8) | array[3]);
- }
-
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.dst.u.tcp.port = htons(array[4] << 8 | array[5]);
- exp->tuple.src.u.tcp.port = 0; /* Don't care. */
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask = ((struct ip_conntrack_tuple)
- { { htonl(0xFFFFFFFF), { 0 } },
- { htonl(0xFFFFFFFF), { .tcp = { htons(0xFFFF) } }, 0xFF }});
-
- exp->expectfn = NULL;
- exp->flags = 0;
-
- /* Now, NAT might want to mangle the packet, and register the
- * (possibly changed) expectation itself. */
- ip_nat_ftp = rcu_dereference(ip_nat_ftp_hook);
- if (ip_nat_ftp)
- ret = ip_nat_ftp(pskb, ctinfo, search[dir][i].ftptype,
- matchoff, matchlen, exp, &seq);
- else {
- /* Can't expect this? Best to drop packet now. */
- if (ip_conntrack_expect_related(exp) != 0)
- ret = NF_DROP;
- else
- ret = NF_ACCEPT;
- }
-
-out_put_expect:
- ip_conntrack_expect_put(exp);
-
-out_update_nl:
- /* Now if this ends in \n, update ftp info. Seq may have been
- * adjusted by NAT code. */
- if (ends_in_nl)
- update_nl_seq(seq, ct_ftp_info,dir, *pskb);
- out:
- spin_unlock_bh(&ip_ftp_lock);
- return ret;
-}
-
-static struct ip_conntrack_helper ftp[MAX_PORTS];
-static char ftp_names[MAX_PORTS][sizeof("ftp-65535")];
-
-/* Not __exit: called from init() */
-static void ip_conntrack_ftp_fini(void)
-{
- int i;
- for (i = 0; i < ports_c; i++) {
- DEBUGP("ip_ct_ftp: unregistering helper for port %d\n",
- ports[i]);
- ip_conntrack_helper_unregister(&ftp[i]);
- }
-
- kfree(ftp_buffer);
-}
-
-static int __init ip_conntrack_ftp_init(void)
-{
- int i, ret;
- char *tmpname;
-
- ftp_buffer = kmalloc(65536, GFP_KERNEL);
- if (!ftp_buffer)
- return -ENOMEM;
-
- if (ports_c == 0)
- ports[ports_c++] = FTP_PORT;
-
- for (i = 0; i < ports_c; i++) {
- ftp[i].tuple.src.u.tcp.port = htons(ports[i]);
- ftp[i].tuple.dst.protonum = IPPROTO_TCP;
- ftp[i].mask.src.u.tcp.port = htons(0xFFFF);
- ftp[i].mask.dst.protonum = 0xFF;
- ftp[i].max_expected = 1;
- ftp[i].timeout = 5 * 60; /* 5 minutes */
- ftp[i].me = THIS_MODULE;
- ftp[i].help = help;
-
- tmpname = &ftp_names[i][0];
- if (ports[i] == FTP_PORT)
- sprintf(tmpname, "ftp");
- else
- sprintf(tmpname, "ftp-%d", ports[i]);
- ftp[i].name = tmpname;
-
- DEBUGP("ip_ct_ftp: registering helper for port %d\n",
- ports[i]);
- ret = ip_conntrack_helper_register(&ftp[i]);
-
- if (ret) {
- ip_conntrack_ftp_fini();
- return ret;
- }
- }
- return 0;
-}
-
-module_init(ip_conntrack_ftp_init);
-module_exit(ip_conntrack_ftp_fini);
+++ /dev/null
-/*
- * H.323 connection tracking helper
- *
- * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
- *
- * This source code is licensed under General Public License version 2.
- *
- * Based on the 'brute force' H.323 connection tracking module by
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
- *
- * For more information, please see http://nath323.sourceforge.net/
- */
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-#include <linux/moduleparam.h>
-#include <linux/ctype.h>
-#include <linux/inet.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/* Parameters */
-static unsigned int default_rrq_ttl = 300;
-module_param(default_rrq_ttl, uint, 0600);
-MODULE_PARM_DESC(default_rrq_ttl, "use this TTL if it's missing in RRQ");
-
-static int gkrouted_only = 1;
-module_param(gkrouted_only, int, 0600);
-MODULE_PARM_DESC(gkrouted_only, "only accept calls from gatekeeper");
-
-static int callforward_filter = 1;
-module_param(callforward_filter, bool, 0600);
-MODULE_PARM_DESC(callforward_filter, "only create call forwarding expectations "
- "if both endpoints are on different sides "
- "(determined by routing information)");
-
-/* Hooks for NAT */
-int (*set_h245_addr_hook) (struct sk_buff ** pskb,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr,
- __be32 ip, u_int16_t port);
-int (*set_h225_addr_hook) (struct sk_buff ** pskb,
- unsigned char **data, int dataoff,
- TransportAddress * addr,
- __be32 ip, u_int16_t port);
-int (*set_sig_addr_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count);
-int (*set_ras_addr_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count);
-int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr,
- u_int16_t port, u_int16_t rtp_port,
- struct ip_conntrack_expect * rtp_exp,
- struct ip_conntrack_expect * rtcp_exp);
-int (*nat_t120_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect * exp);
-int (*nat_h245_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect * exp);
-int (*nat_callforwarding_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect * exp);
-int (*nat_q931_hook) (struct sk_buff ** pskb,
- struct ip_conntrack * ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, TransportAddress * addr, int idx,
- u_int16_t port, struct ip_conntrack_expect * exp);
-
-
-static DEFINE_SPINLOCK(ip_h323_lock);
-static char *h323_buffer;
-
-/****************************************************************************/
-static int get_tpkt_data(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int *datalen, int *dataoff)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- struct tcphdr _tcph, *th;
- int tcpdatalen;
- int tcpdataoff;
- unsigned char *tpkt;
- int tpktlen;
- int tpktoff;
-
- /* Get TCP header */
- th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
- sizeof(_tcph), &_tcph);
- if (th == NULL)
- return 0;
-
- /* Get TCP data offset */
- tcpdataoff = (*pskb)->nh.iph->ihl * 4 + th->doff * 4;
-
- /* Get TCP data length */
- tcpdatalen = (*pskb)->len - tcpdataoff;
- if (tcpdatalen <= 0) /* No TCP data */
- goto clear_out;
-
- if (*data == NULL) { /* first TPKT */
- /* Get first TPKT pointer */
- tpkt = skb_header_pointer(*pskb, tcpdataoff, tcpdatalen,
- h323_buffer);
- BUG_ON(tpkt == NULL);
-
- /* Validate TPKT identifier */
- if (tcpdatalen < 4 || tpkt[0] != 0x03 || tpkt[1] != 0) {
- /* Netmeeting sends TPKT header and data separately */
- if (info->tpkt_len[dir] > 0) {
- DEBUGP("ip_ct_h323: previous packet "
- "indicated separate TPKT data of %hu "
- "bytes\n", info->tpkt_len[dir]);
- if (info->tpkt_len[dir] <= tcpdatalen) {
- /* Yes, there was a TPKT header
- * received */
- *data = tpkt;
- *datalen = info->tpkt_len[dir];
- *dataoff = 0;
- goto out;
- }
-
- /* Fragmented TPKT */
- if (net_ratelimit())
- printk("ip_ct_h323: "
- "fragmented TPKT\n");
- goto clear_out;
- }
-
- /* It is not even a TPKT */
- return 0;
- }
- tpktoff = 0;
- } else { /* Next TPKT */
- tpktoff = *dataoff + *datalen;
- tcpdatalen -= tpktoff;
- if (tcpdatalen <= 4) /* No more TPKT */
- goto clear_out;
- tpkt = *data + *datalen;
-
- /* Validate TPKT identifier */
- if (tpkt[0] != 0x03 || tpkt[1] != 0)
- goto clear_out;
- }
-
- /* Validate TPKT length */
- tpktlen = tpkt[2] * 256 + tpkt[3];
- if (tpktlen < 4)
- goto clear_out;
- if (tpktlen > tcpdatalen) {
- if (tcpdatalen == 4) { /* Separate TPKT header */
- /* Netmeeting sends TPKT header and data separately */
- DEBUGP("ip_ct_h323: separate TPKT header indicates "
- "there will be TPKT data of %hu bytes\n",
- tpktlen - 4);
- info->tpkt_len[dir] = tpktlen - 4;
- return 0;
- }
-
- if (net_ratelimit())
- printk("ip_ct_h323: incomplete TPKT (fragmented?)\n");
- goto clear_out;
- }
-
- /* This is the encapsulated data */
- *data = tpkt + 4;
- *datalen = tpktlen - 4;
- *dataoff = tpktoff + 4;
-
- out:
- /* Clear TPKT length */
- info->tpkt_len[dir] = 0;
- return 1;
-
- clear_out:
- info->tpkt_len[dir] = 0;
- return 0;
-}
-
-/****************************************************************************/
-static int get_h245_addr(unsigned char *data, H245_TransportAddress * addr,
- __be32 * ip, u_int16_t * port)
-{
- unsigned char *p;
-
- if (addr->choice != eH245_TransportAddress_unicastAddress ||
- addr->unicastAddress.choice != eUnicastAddress_iPAddress)
- return 0;
-
- p = data + addr->unicastAddress.iPAddress.network;
- *ip = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]));
- *port = (p[4] << 8) | (p[5]);
-
- return 1;
-}
-
-/****************************************************************************/
-static int expect_rtp_rtcp(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- u_int16_t rtp_port;
- struct ip_conntrack_expect *rtp_exp;
- struct ip_conntrack_expect *rtcp_exp;
- typeof(nat_rtp_rtcp_hook) nat_rtp_rtcp;
-
- /* Read RTP or RTCP address */
- if (!get_h245_addr(*data, addr, &ip, &port) ||
- ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
- return 0;
-
- /* RTP port is even */
- rtp_port = port & (~1);
-
- /* Create expect for RTP */
- if ((rtp_exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- rtp_exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- rtp_exp->tuple.src.u.udp.port = 0;
- rtp_exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
- rtp_exp->tuple.dst.u.udp.port = htons(rtp_port);
- rtp_exp->tuple.dst.protonum = IPPROTO_UDP;
- rtp_exp->mask.src.ip = htonl(0xFFFFFFFF);
- rtp_exp->mask.src.u.udp.port = 0;
- rtp_exp->mask.dst.ip = htonl(0xFFFFFFFF);
- rtp_exp->mask.dst.u.udp.port = htons(0xFFFF);
- rtp_exp->mask.dst.protonum = 0xFF;
- rtp_exp->flags = 0;
-
- /* Create expect for RTCP */
- if ((rtcp_exp = ip_conntrack_expect_alloc(ct)) == NULL) {
- ip_conntrack_expect_put(rtp_exp);
- return -1;
- }
- rtcp_exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- rtcp_exp->tuple.src.u.udp.port = 0;
- rtcp_exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
- rtcp_exp->tuple.dst.u.udp.port = htons(rtp_port + 1);
- rtcp_exp->tuple.dst.protonum = IPPROTO_UDP;
- rtcp_exp->mask.src.ip = htonl(0xFFFFFFFF);
- rtcp_exp->mask.src.u.udp.port = 0;
- rtcp_exp->mask.dst.ip = htonl(0xFFFFFFFF);
- rtcp_exp->mask.dst.u.udp.port = htons(0xFFFF);
- rtcp_exp->mask.dst.protonum = 0xFF;
- rtcp_exp->flags = 0;
-
- if (ct->tuplehash[dir].tuple.src.ip !=
- ct->tuplehash[!dir].tuple.dst.ip &&
- (nat_rtp_rtcp = rcu_dereference(nat_rtp_rtcp_hook))) {
- /* NAT needed */
- ret = nat_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
- addr, port, rtp_port, rtp_exp, rtcp_exp);
- } else { /* Conntrack only */
- rtp_exp->expectfn = NULL;
- rtcp_exp->expectfn = NULL;
-
- if (ip_conntrack_expect_related(rtp_exp) == 0) {
- if (ip_conntrack_expect_related(rtcp_exp) == 0) {
- DEBUGP("ip_ct_h323: expect RTP "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(rtp_exp->tuple.src.ip),
- ntohs(rtp_exp->tuple.src.u.udp.port),
- NIPQUAD(rtp_exp->tuple.dst.ip),
- ntohs(rtp_exp->tuple.dst.u.udp.port));
- DEBUGP("ip_ct_h323: expect RTCP "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(rtcp_exp->tuple.src.ip),
- ntohs(rtcp_exp->tuple.src.u.udp.port),
- NIPQUAD(rtcp_exp->tuple.dst.ip),
- ntohs(rtcp_exp->tuple.dst.u.udp.port));
- } else {
- ip_conntrack_unexpect_related(rtp_exp);
- ret = -1;
- }
- } else
- ret = -1;
- }
-
- ip_conntrack_expect_put(rtp_exp);
- ip_conntrack_expect_put(rtcp_exp);
-
- return ret;
-}
-
-/****************************************************************************/
-static int expect_t120(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp = NULL;
- typeof(nat_t120_hook) nat_t120;
-
- /* Read T.120 address */
- if (!get_h245_addr(*data, addr, &ip, &port) ||
- ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
- return 0;
-
- /* Create expect for T.120 connections */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = IP_CT_EXPECT_PERMANENT; /* Accept multiple channels */
-
- if (ct->tuplehash[dir].tuple.src.ip !=
- ct->tuplehash[!dir].tuple.dst.ip &&
- (nat_t120 = rcu_dereference(nat_t120_hook))) {
- /* NAT needed */
- ret = nat_t120(pskb, ct, ctinfo, data, dataoff, addr,
- port, exp);
- } else { /* Conntrack only */
- exp->expectfn = NULL;
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_h323: expect T.120 "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
- } else
- ret = -1;
- }
-
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-/****************************************************************************/
-static int process_h245_channel(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H2250LogicalChannelParameters * channel)
-{
- int ret;
-
- if (channel->options & eH2250LogicalChannelParameters_mediaChannel) {
- /* RTP */
- ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
- &channel->mediaChannel);
- if (ret < 0)
- return -1;
- }
-
- if (channel->
- options & eH2250LogicalChannelParameters_mediaControlChannel) {
- /* RTCP */
- ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
- &channel->mediaControlChannel);
- if (ret < 0)
- return -1;
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_olc(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- OpenLogicalChannel * olc)
-{
- int ret;
-
- DEBUGP("ip_ct_h323: OpenLogicalChannel\n");
-
- if (olc->forwardLogicalChannelParameters.multiplexParameters.choice ==
- eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters)
- {
- ret = process_h245_channel(pskb, ct, ctinfo, data, dataoff,
- &olc->
- forwardLogicalChannelParameters.
- multiplexParameters.
- h2250LogicalChannelParameters);
- if (ret < 0)
- return -1;
- }
-
- if ((olc->options &
- eOpenLogicalChannel_reverseLogicalChannelParameters) &&
- (olc->reverseLogicalChannelParameters.options &
- eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters)
- && (olc->reverseLogicalChannelParameters.multiplexParameters.
- choice ==
- eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters))
- {
- ret =
- process_h245_channel(pskb, ct, ctinfo, data, dataoff,
- &olc->
- reverseLogicalChannelParameters.
- multiplexParameters.
- h2250LogicalChannelParameters);
- if (ret < 0)
- return -1;
- }
-
- if ((olc->options & eOpenLogicalChannel_separateStack) &&
- olc->forwardLogicalChannelParameters.dataType.choice ==
- eDataType_data &&
- olc->forwardLogicalChannelParameters.dataType.data.application.
- choice == eDataApplicationCapability_application_t120 &&
- olc->forwardLogicalChannelParameters.dataType.data.application.
- t120.choice == eDataProtocolCapability_separateLANStack &&
- olc->separateStack.networkAddress.choice ==
- eNetworkAccessParameters_networkAddress_localAreaAddress) {
- ret = expect_t120(pskb, ct, ctinfo, data, dataoff,
- &olc->separateStack.networkAddress.
- localAreaAddress);
- if (ret < 0)
- return -1;
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_olca(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- OpenLogicalChannelAck * olca)
-{
- H2250LogicalChannelAckParameters *ack;
- int ret;
-
- DEBUGP("ip_ct_h323: OpenLogicalChannelAck\n");
-
- if ((olca->options &
- eOpenLogicalChannelAck_reverseLogicalChannelParameters) &&
- (olca->reverseLogicalChannelParameters.options &
- eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters)
- && (olca->reverseLogicalChannelParameters.multiplexParameters.
- choice ==
- eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters))
- {
- ret = process_h245_channel(pskb, ct, ctinfo, data, dataoff,
- &olca->
- reverseLogicalChannelParameters.
- multiplexParameters.
- h2250LogicalChannelParameters);
- if (ret < 0)
- return -1;
- }
-
- if ((olca->options &
- eOpenLogicalChannelAck_forwardMultiplexAckParameters) &&
- (olca->forwardMultiplexAckParameters.choice ==
- eOpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters))
- {
- ack = &olca->forwardMultiplexAckParameters.
- h2250LogicalChannelAckParameters;
- if (ack->options &
- eH2250LogicalChannelAckParameters_mediaChannel) {
- /* RTP */
- ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
- &ack->mediaChannel);
- if (ret < 0)
- return -1;
- }
-
- if (ack->options &
- eH2250LogicalChannelAckParameters_mediaControlChannel) {
- /* RTCP */
- ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
- &ack->mediaControlChannel);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- MultimediaSystemControlMessage * mscm)
-{
- switch (mscm->choice) {
- case eMultimediaSystemControlMessage_request:
- if (mscm->request.choice ==
- eRequestMessage_openLogicalChannel) {
- return process_olc(pskb, ct, ctinfo, data, dataoff,
- &mscm->request.openLogicalChannel);
- }
- DEBUGP("ip_ct_h323: H.245 Request %d\n",
- mscm->request.choice);
- break;
- case eMultimediaSystemControlMessage_response:
- if (mscm->response.choice ==
- eResponseMessage_openLogicalChannelAck) {
- return process_olca(pskb, ct, ctinfo, data, dataoff,
- &mscm->response.
- openLogicalChannelAck);
- }
- DEBUGP("ip_ct_h323: H.245 Response %d\n",
- mscm->response.choice);
- break;
- default:
- DEBUGP("ip_ct_h323: H.245 signal %d\n", mscm->choice);
- break;
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int h245_help(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- static MultimediaSystemControlMessage mscm;
- unsigned char *data = NULL;
- int datalen;
- int dataoff;
- int ret;
-
- /* Until there's been traffic both ways, don't look in packets. */
- if (ctinfo != IP_CT_ESTABLISHED
- && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
- return NF_ACCEPT;
- }
- DEBUGP("ip_ct_h245: skblen = %u\n", (*pskb)->len);
-
- spin_lock_bh(&ip_h323_lock);
-
- /* Process each TPKT */
- while (get_tpkt_data(pskb, ct, ctinfo, &data, &datalen, &dataoff)) {
- DEBUGP("ip_ct_h245: TPKT %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
- NIPQUAD((*pskb)->nh.iph->saddr),
- NIPQUAD((*pskb)->nh.iph->daddr), datalen);
-
- /* Decode H.245 signal */
- ret = DecodeMultimediaSystemControlMessage(data, datalen,
- &mscm);
- if (ret < 0) {
- if (net_ratelimit())
- printk("ip_ct_h245: decoding error: %s\n",
- ret == H323_ERROR_BOUND ?
- "out of bound" : "out of range");
- /* We don't drop when decoding error */
- break;
- }
-
- /* Process H.245 signal */
- if (process_h245(pskb, ct, ctinfo, &data, dataoff, &mscm) < 0)
- goto drop;
- }
-
- spin_unlock_bh(&ip_h323_lock);
- return NF_ACCEPT;
-
- drop:
- spin_unlock_bh(&ip_h323_lock);
- if (net_ratelimit())
- printk("ip_ct_h245: packet dropped\n");
- return NF_DROP;
-}
-
-/****************************************************************************/
-static struct ip_conntrack_helper ip_conntrack_helper_h245 = {
- .name = "H.245",
- .me = THIS_MODULE,
- .max_expected = H323_RTP_CHANNEL_MAX * 4 + 2 /* T.120 */ ,
- .timeout = 240,
- .tuple = {.dst = {.protonum = IPPROTO_TCP}},
- .mask = {.src = {.u = {0xFFFF}},
- .dst = {.protonum = 0xFF}},
- .help = h245_help
-};
-
-/****************************************************************************/
-void ip_conntrack_h245_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this)
-{
- write_lock_bh(&ip_conntrack_lock);
- new->helper = &ip_conntrack_helper_h245;
- write_unlock_bh(&ip_conntrack_lock);
-}
-
-/****************************************************************************/
-int get_h225_addr(unsigned char *data, TransportAddress * addr,
- __be32 * ip, u_int16_t * port)
-{
- unsigned char *p;
-
- if (addr->choice != eTransportAddress_ipAddress)
- return 0;
-
- p = data + addr->ipAddress.ip;
- *ip = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]));
- *port = (p[4] << 8) | (p[5]);
-
- return 1;
-}
-
-/****************************************************************************/
-static int expect_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp = NULL;
- typeof(nat_h245_hook) nat_h245;
-
- /* Read h245Address */
- if (!get_h225_addr(*data, addr, &ip, &port) ||
- ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
- return 0;
-
- /* Create expect for h245 connection */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = 0;
-
- if (ct->tuplehash[dir].tuple.src.ip !=
- ct->tuplehash[!dir].tuple.dst.ip &&
- (nat_h245 = rcu_dereference(nat_h245_hook))) {
- /* NAT needed */
- ret = nat_h245(pskb, ct, ctinfo, data, dataoff, addr,
- port, exp);
- } else { /* Conntrack only */
- exp->expectfn = ip_conntrack_h245_expect;
-
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_q931: expect H.245 "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
- } else
- ret = -1;
- }
-
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-/* Forwarding declaration */
-void ip_conntrack_q931_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this);
-
-/****************************************************************************/
-static int expect_callforwarding(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp = NULL;
- typeof(nat_callforwarding_hook) nat_callforwarding;
-
- /* Read alternativeAddress */
- if (!get_h225_addr(*data, addr, &ip, &port) || port == 0)
- return 0;
-
- /* If the calling party is on the same side of the forward-to party,
- * we don't need to track the second call */
- if (callforward_filter) {
- struct rtable *rt1, *rt2;
- struct flowi fl1 = {
- .fl4_dst = ip,
- };
- struct flowi fl2 = {
- .fl4_dst = ct->tuplehash[!dir].tuple.src.ip,
- };
-
- if (ip_route_output_key(&rt1, &fl1) == 0) {
- if (ip_route_output_key(&rt2, &fl2) == 0) {
- if (rt1->rt_gateway == rt2->rt_gateway &&
- rt1->u.dst.dev == rt2->u.dst.dev)
- ret = 1;
- dst_release(&rt2->u.dst);
- }
- dst_release(&rt1->u.dst);
- }
- if (ret) {
- DEBUGP("ip_ct_q931: Call Forwarding not tracked\n");
- return 0;
- }
- }
-
- /* Create expect for the second call leg */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = 0;
-
- if (ct->tuplehash[dir].tuple.src.ip !=
- ct->tuplehash[!dir].tuple.dst.ip &&
- (nat_callforwarding = rcu_dereference(nat_callforwarding_hook))) {
- /* Need NAT */
- ret = nat_callforwarding(pskb, ct, ctinfo, data, dataoff,
- addr, port, exp);
- } else { /* Conntrack only */
- exp->expectfn = ip_conntrack_q931_expect;
-
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_q931: expect Call Forwarding "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
- } else
- ret = -1;
- }
-
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-/****************************************************************************/
-static int process_setup(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- Setup_UUIE * setup)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret;
- int i;
- __be32 ip;
- u_int16_t port;
- typeof(set_h225_addr_hook) set_h225_addr;
-
- DEBUGP("ip_ct_q931: Setup\n");
-
- if (setup->options & eSetup_UUIE_h245Address) {
- ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
- &setup->h245Address);
- if (ret < 0)
- return -1;
- }
-
- set_h225_addr = rcu_dereference(set_h225_addr_hook);
-
- if ((setup->options & eSetup_UUIE_destCallSignalAddress) &&
- (set_h225_addr) &&
- get_h225_addr(*data, &setup->destCallSignalAddress, &ip, &port) &&
- ip != ct->tuplehash[!dir].tuple.src.ip) {
- DEBUGP("ip_ct_q931: set destCallSignalAddress "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.src.ip),
- ntohs(ct->tuplehash[!dir].tuple.src.u.tcp.port));
- ret = set_h225_addr(pskb, data, dataoff,
- &setup->destCallSignalAddress,
- ct->tuplehash[!dir].tuple.src.ip,
- ntohs(ct->tuplehash[!dir].tuple.src.
- u.tcp.port));
- if (ret < 0)
- return -1;
- }
-
- if ((setup->options & eSetup_UUIE_sourceCallSignalAddress) &&
- (set_h225_addr) &&
- get_h225_addr(*data, &setup->sourceCallSignalAddress, &ip, &port)
- && ip != ct->tuplehash[!dir].tuple.dst.ip) {
- DEBUGP("ip_ct_q931: set sourceCallSignalAddress "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.dst.ip),
- ntohs(ct->tuplehash[!dir].tuple.dst.u.tcp.port));
- ret = set_h225_addr(pskb, data, dataoff,
- &setup->sourceCallSignalAddress,
- ct->tuplehash[!dir].tuple.dst.ip,
- ntohs(ct->tuplehash[!dir].tuple.dst.
- u.tcp.port));
- if (ret < 0)
- return -1;
- }
-
- if (setup->options & eSetup_UUIE_fastStart) {
- for (i = 0; i < setup->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &setup->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_callproceeding(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- CallProceeding_UUIE * callproc)
-{
- int ret;
- int i;
-
- DEBUGP("ip_ct_q931: CallProceeding\n");
-
- if (callproc->options & eCallProceeding_UUIE_h245Address) {
- ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
- &callproc->h245Address);
- if (ret < 0)
- return -1;
- }
-
- if (callproc->options & eCallProceeding_UUIE_fastStart) {
- for (i = 0; i < callproc->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &callproc->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_connect(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- Connect_UUIE * connect)
-{
- int ret;
- int i;
-
- DEBUGP("ip_ct_q931: Connect\n");
-
- if (connect->options & eConnect_UUIE_h245Address) {
- ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
- &connect->h245Address);
- if (ret < 0)
- return -1;
- }
-
- if (connect->options & eConnect_UUIE_fastStart) {
- for (i = 0; i < connect->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &connect->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_alerting(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- Alerting_UUIE * alert)
-{
- int ret;
- int i;
-
- DEBUGP("ip_ct_q931: Alerting\n");
-
- if (alert->options & eAlerting_UUIE_h245Address) {
- ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
- &alert->h245Address);
- if (ret < 0)
- return -1;
- }
-
- if (alert->options & eAlerting_UUIE_fastStart) {
- for (i = 0; i < alert->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &alert->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_information(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- Information_UUIE * info)
-{
- int ret;
- int i;
-
- DEBUGP("ip_ct_q931: Information\n");
-
- if (info->options & eInformation_UUIE_fastStart) {
- for (i = 0; i < info->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &info->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_facility(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- Facility_UUIE * facility)
-{
- int ret;
- int i;
-
- DEBUGP("ip_ct_q931: Facility\n");
-
- if (facility->reason.choice == eFacilityReason_callForwarded) {
- if (facility->options & eFacility_UUIE_alternativeAddress)
- return expect_callforwarding(pskb, ct, ctinfo, data,
- dataoff,
- &facility->
- alternativeAddress);
- return 0;
- }
-
- if (facility->options & eFacility_UUIE_h245Address) {
- ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
- &facility->h245Address);
- if (ret < 0)
- return -1;
- }
-
- if (facility->options & eFacility_UUIE_fastStart) {
- for (i = 0; i < facility->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &facility->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_progress(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- Progress_UUIE * progress)
-{
- int ret;
- int i;
-
- DEBUGP("ip_ct_q931: Progress\n");
-
- if (progress->options & eProgress_UUIE_h245Address) {
- ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
- &progress->h245Address);
- if (ret < 0)
- return -1;
- }
-
- if (progress->options & eProgress_UUIE_fastStart) {
- for (i = 0; i < progress->fastStart.count; i++) {
- ret = process_olc(pskb, ct, ctinfo, data, dataoff,
- &progress->fastStart.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff, Q931 * q931)
-{
- H323_UU_PDU *pdu = &q931->UUIE.h323_uu_pdu;
- int i;
- int ret = 0;
-
- switch (pdu->h323_message_body.choice) {
- case eH323_UU_PDU_h323_message_body_setup:
- ret = process_setup(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.setup);
- break;
- case eH323_UU_PDU_h323_message_body_callProceeding:
- ret = process_callproceeding(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.
- callProceeding);
- break;
- case eH323_UU_PDU_h323_message_body_connect:
- ret = process_connect(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.connect);
- break;
- case eH323_UU_PDU_h323_message_body_alerting:
- ret = process_alerting(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.alerting);
- break;
- case eH323_UU_PDU_h323_message_body_information:
- ret = process_information(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.
- information);
- break;
- case eH323_UU_PDU_h323_message_body_facility:
- ret = process_facility(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.facility);
- break;
- case eH323_UU_PDU_h323_message_body_progress:
- ret = process_progress(pskb, ct, ctinfo, data, dataoff,
- &pdu->h323_message_body.progress);
- break;
- default:
- DEBUGP("ip_ct_q931: Q.931 signal %d\n",
- pdu->h323_message_body.choice);
- break;
- }
-
- if (ret < 0)
- return -1;
-
- if (pdu->options & eH323_UU_PDU_h245Control) {
- for (i = 0; i < pdu->h245Control.count; i++) {
- ret = process_h245(pskb, ct, ctinfo, data, dataoff,
- &pdu->h245Control.item[i]);
- if (ret < 0)
- return -1;
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int q931_help(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- static Q931 q931;
- unsigned char *data = NULL;
- int datalen;
- int dataoff;
- int ret;
-
- /* Until there's been traffic both ways, don't look in packets. */
- if (ctinfo != IP_CT_ESTABLISHED
- && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
- return NF_ACCEPT;
- }
- DEBUGP("ip_ct_q931: skblen = %u\n", (*pskb)->len);
-
- spin_lock_bh(&ip_h323_lock);
-
- /* Process each TPKT */
- while (get_tpkt_data(pskb, ct, ctinfo, &data, &datalen, &dataoff)) {
- DEBUGP("ip_ct_q931: TPKT %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
- NIPQUAD((*pskb)->nh.iph->saddr),
- NIPQUAD((*pskb)->nh.iph->daddr), datalen);
-
- /* Decode Q.931 signal */
- ret = DecodeQ931(data, datalen, &q931);
- if (ret < 0) {
- if (net_ratelimit())
- printk("ip_ct_q931: decoding error: %s\n",
- ret == H323_ERROR_BOUND ?
- "out of bound" : "out of range");
- /* We don't drop when decoding error */
- break;
- }
-
- /* Process Q.931 signal */
- if (process_q931(pskb, ct, ctinfo, &data, dataoff, &q931) < 0)
- goto drop;
- }
-
- spin_unlock_bh(&ip_h323_lock);
- return NF_ACCEPT;
-
- drop:
- spin_unlock_bh(&ip_h323_lock);
- if (net_ratelimit())
- printk("ip_ct_q931: packet dropped\n");
- return NF_DROP;
-}
-
-/****************************************************************************/
-static struct ip_conntrack_helper ip_conntrack_helper_q931 = {
- .name = "Q.931",
- .me = THIS_MODULE,
- .max_expected = H323_RTP_CHANNEL_MAX * 4 + 4 /* T.120 and H.245 */ ,
- .timeout = 240,
- .tuple = {.src = {.u = {.tcp = {.port = __constant_htons(Q931_PORT)}}},
- .dst = {.protonum = IPPROTO_TCP}},
- .mask = {.src = {.u = {0xFFFF}},
- .dst = {.protonum = 0xFF}},
- .help = q931_help
-};
-
-/****************************************************************************/
-void ip_conntrack_q931_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this)
-{
- write_lock_bh(&ip_conntrack_lock);
- new->helper = &ip_conntrack_helper_q931;
- write_unlock_bh(&ip_conntrack_lock);
-}
-
-/****************************************************************************/
-static unsigned char *get_udp_data(struct sk_buff **pskb, int *datalen)
-{
- struct udphdr _uh, *uh;
- int dataoff;
-
- uh = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4, sizeof(_uh),
- &_uh);
- if (uh == NULL)
- return NULL;
- dataoff = (*pskb)->nh.iph->ihl * 4 + sizeof(_uh);
- if (dataoff >= (*pskb)->len)
- return NULL;
- *datalen = (*pskb)->len - dataoff;
- return skb_header_pointer(*pskb, dataoff, *datalen, h323_buffer);
-}
-
-/****************************************************************************/
-static struct ip_conntrack_expect *find_expect(struct ip_conntrack *ct,
- __be32 ip, u_int16_t port)
-{
- struct ip_conntrack_expect *exp;
- struct ip_conntrack_tuple tuple;
-
- tuple.src.ip = 0;
- tuple.src.u.tcp.port = 0;
- tuple.dst.ip = ip;
- tuple.dst.u.tcp.port = htons(port);
- tuple.dst.protonum = IPPROTO_TCP;
-
- exp = __ip_conntrack_expect_find(&tuple);
- if (exp && exp->master == ct)
- return exp;
- return NULL;
-}
-
-/****************************************************************************/
-static int set_expect_timeout(struct ip_conntrack_expect *exp,
- unsigned timeout)
-{
- if (!exp || !del_timer(&exp->timeout))
- return 0;
-
- exp->timeout.expires = jiffies + timeout * HZ;
- add_timer(&exp->timeout);
-
- return 1;
-}
-
-/****************************************************************************/
-static int expect_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- int i;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp;
- typeof(nat_q931_hook) nat_q931;
-
- /* Look for the first related address */
- for (i = 0; i < count; i++) {
- if (get_h225_addr(*data, &addr[i], &ip, &port) &&
- ip == ct->tuplehash[dir].tuple.src.ip && port != 0)
- break;
- }
-
- if (i >= count) /* Not found */
- return 0;
-
- /* Create expect for Q.931 */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = gkrouted_only ? /* only accept calls from GK? */
- ct->tuplehash[!dir].tuple.src.ip : 0;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask.src.ip = gkrouted_only ? htonl(0xFFFFFFFF) : 0;
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = IP_CT_EXPECT_PERMANENT; /* Accept multiple calls */
-
- nat_q931 = rcu_dereference(nat_q931_hook);
- if (nat_q931) { /* Need NAT */
- ret = nat_q931(pskb, ct, ctinfo, data, addr, i, port, exp);
- } else { /* Conntrack only */
- exp->expectfn = ip_conntrack_q931_expect;
-
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_ras: expect Q.931 "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
-
- /* Save port for looking up expect in processing RCF */
- info->sig_port[dir] = port;
- } else
- ret = -1;
- }
-
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-/****************************************************************************/
-static int process_grq(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, GatekeeperRequest * grq)
-{
- typeof(set_ras_addr_hook) set_ras_addr;
-
- DEBUGP("ip_ct_ras: GRQ\n");
-
- set_ras_addr = rcu_dereference(set_ras_addr_hook);
- if (set_ras_addr) /* NATed */
- return set_ras_addr(pskb, ct, ctinfo, data,
- &grq->rasAddress, 1);
- return 0;
-}
-
-/* Declare before using */
-static void ip_conntrack_ras_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this);
-
-/****************************************************************************/
-static int process_gcf(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, GatekeeperConfirm * gcf)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp;
-
- DEBUGP("ip_ct_ras: GCF\n");
-
- if (!get_h225_addr(*data, &gcf->rasAddress, &ip, &port))
- return 0;
-
- /* Registration port is the same as discovery port */
- if (ip == ct->tuplehash[dir].tuple.src.ip &&
- port == ntohs(ct->tuplehash[dir].tuple.src.u.udp.port))
- return 0;
-
- /* Avoid RAS expectation loops. A GCF is never expected. */
- if (test_bit(IPS_EXPECTED_BIT, &ct->status))
- return 0;
-
- /* Need new expect */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_UDP;
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = 0;
- exp->expectfn = ip_conntrack_ras_expect;
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_ras: expect RAS "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
- } else
- ret = -1;
-
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-/****************************************************************************/
-static int process_rrq(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, RegistrationRequest * rrq)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int ret;
- typeof(set_ras_addr_hook) set_ras_addr;
-
- DEBUGP("ip_ct_ras: RRQ\n");
-
- ret = expect_q931(pskb, ct, ctinfo, data,
- rrq->callSignalAddress.item,
- rrq->callSignalAddress.count);
- if (ret < 0)
- return -1;
-
- set_ras_addr = rcu_dereference(set_ras_addr_hook);
- if (set_ras_addr) {
- ret = set_ras_addr(pskb, ct, ctinfo, data,
- rrq->rasAddress.item,
- rrq->rasAddress.count);
- if (ret < 0)
- return -1;
- }
-
- if (rrq->options & eRegistrationRequest_timeToLive) {
- DEBUGP("ip_ct_ras: RRQ TTL = %u seconds\n", rrq->timeToLive);
- info->timeout = rrq->timeToLive;
- } else
- info->timeout = default_rrq_ttl;
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_rcf(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, RegistrationConfirm * rcf)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- int ret;
- struct ip_conntrack_expect *exp;
- typeof(set_sig_addr_hook) set_sig_addr;
-
- DEBUGP("ip_ct_ras: RCF\n");
-
- set_sig_addr = rcu_dereference(set_sig_addr_hook);
- if (set_sig_addr) {
- ret = set_sig_addr(pskb, ct, ctinfo, data,
- rcf->callSignalAddress.item,
- rcf->callSignalAddress.count);
- if (ret < 0)
- return -1;
- }
-
- if (rcf->options & eRegistrationConfirm_timeToLive) {
- DEBUGP("ip_ct_ras: RCF TTL = %u seconds\n", rcf->timeToLive);
- info->timeout = rcf->timeToLive;
- }
-
- if (info->timeout > 0) {
- DEBUGP
- ("ip_ct_ras: set RAS connection timeout to %u seconds\n",
- info->timeout);
- ip_ct_refresh(ct, *pskb, info->timeout * HZ);
-
- /* Set expect timeout */
- read_lock_bh(&ip_conntrack_lock);
- exp = find_expect(ct, ct->tuplehash[dir].tuple.dst.ip,
- info->sig_port[!dir]);
- if (exp) {
- DEBUGP("ip_ct_ras: set Q.931 expect "
- "(%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu) "
- "timeout to %u seconds\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port),
- info->timeout);
- set_expect_timeout(exp, info->timeout);
- }
- read_unlock_bh(&ip_conntrack_lock);
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_urq(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, UnregistrationRequest * urq)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- int ret;
- typeof(set_sig_addr_hook) set_sig_addr;
-
- DEBUGP("ip_ct_ras: URQ\n");
-
- set_sig_addr = rcu_dereference(set_sig_addr_hook);
- if (set_sig_addr) {
- ret = set_sig_addr(pskb, ct, ctinfo, data,
- urq->callSignalAddress.item,
- urq->callSignalAddress.count);
- if (ret < 0)
- return -1;
- }
-
- /* Clear old expect */
- ip_ct_remove_expectations(ct);
- info->sig_port[dir] = 0;
- info->sig_port[!dir] = 0;
-
- /* Give it 30 seconds for UCF or URJ */
- ip_ct_refresh(ct, *pskb, 30 * HZ);
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_arq(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, AdmissionRequest * arq)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- __be32 ip;
- u_int16_t port;
- typeof(set_h225_addr_hook) set_h225_addr;
-
- DEBUGP("ip_ct_ras: ARQ\n");
-
- set_h225_addr = rcu_dereference(set_h225_addr_hook);
- if ((arq->options & eAdmissionRequest_destCallSignalAddress) &&
- get_h225_addr(*data, &arq->destCallSignalAddress, &ip, &port) &&
- ip == ct->tuplehash[dir].tuple.src.ip &&
- port == info->sig_port[dir] && set_h225_addr) {
- /* Answering ARQ */
- return set_h225_addr(pskb, data, 0,
- &arq->destCallSignalAddress,
- ct->tuplehash[!dir].tuple.dst.ip,
- info->sig_port[!dir]);
- }
-
- if ((arq->options & eAdmissionRequest_srcCallSignalAddress) &&
- get_h225_addr(*data, &arq->srcCallSignalAddress, &ip, &port) &&
- ip == ct->tuplehash[dir].tuple.src.ip && set_h225_addr) {
- /* Calling ARQ */
- return set_h225_addr(pskb, data, 0,
- &arq->srcCallSignalAddress,
- ct->tuplehash[!dir].tuple.dst.ip,
- port);
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_acf(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, AdmissionConfirm * acf)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp;
- typeof(set_sig_addr_hook) set_sig_addr;
-
- DEBUGP("ip_ct_ras: ACF\n");
-
- if (!get_h225_addr(*data, &acf->destCallSignalAddress, &ip, &port))
- return 0;
-
- if (ip == ct->tuplehash[dir].tuple.dst.ip) { /* Answering ACF */
- set_sig_addr = rcu_dereference(set_sig_addr_hook);
- if (set_sig_addr)
- return set_sig_addr(pskb, ct, ctinfo, data,
- &acf->destCallSignalAddress, 1);
- return 0;
- }
-
- /* Need new expect */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = IP_CT_EXPECT_PERMANENT;
- exp->expectfn = ip_conntrack_q931_expect;
-
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_ras: expect Q.931 "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
- } else
- ret = -1;
-
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-/****************************************************************************/
-static int process_lrq(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, LocationRequest * lrq)
-{
- typeof(set_ras_addr_hook) set_ras_addr;
-
- DEBUGP("ip_ct_ras: LRQ\n");
-
- set_ras_addr = rcu_dereference(set_ras_addr_hook);
- if (set_ras_addr)
- return set_ras_addr(pskb, ct, ctinfo, data,
- &lrq->replyAddress, 1);
- return 0;
-}
-
-/****************************************************************************/
-static int process_lcf(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, LocationConfirm * lcf)
-{
- int dir = CTINFO2DIR(ctinfo);
- int ret = 0;
- __be32 ip;
- u_int16_t port;
- struct ip_conntrack_expect *exp = NULL;
-
- DEBUGP("ip_ct_ras: LCF\n");
-
- if (!get_h225_addr(*data, &lcf->callSignalAddress, &ip, &port))
- return 0;
-
- /* Need new expect for call signal */
- if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
- return -1;
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.tcp.port = 0;
- exp->tuple.dst.ip = ip;
- exp->tuple.dst.u.tcp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_TCP;
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.tcp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.tcp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
- exp->flags = IP_CT_EXPECT_PERMANENT;
- exp->expectfn = ip_conntrack_q931_expect;
-
- if (ip_conntrack_expect_related(exp) == 0) {
- DEBUGP("ip_ct_ras: expect Q.931 "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip),
- ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip),
- ntohs(exp->tuple.dst.u.tcp.port));
- } else
- ret = -1;
-
- ip_conntrack_expect_put(exp);
-
- /* Ignore rasAddress */
-
- return ret;
-}
-
-/****************************************************************************/
-static int process_irr(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, InfoRequestResponse * irr)
-{
- int ret;
- typeof(set_ras_addr_hook) set_ras_addr;
- typeof(set_sig_addr_hook) set_sig_addr;
-
- DEBUGP("ip_ct_ras: IRR\n");
-
- set_ras_addr = rcu_dereference(set_ras_addr_hook);
- if (set_ras_addr) {
- ret = set_ras_addr(pskb, ct, ctinfo, data,
- &irr->rasAddress, 1);
- if (ret < 0)
- return -1;
- }
-
- set_sig_addr = rcu_dereference(set_sig_addr_hook);
- if (set_sig_addr) {
- ret = set_sig_addr(pskb, ct, ctinfo, data,
- irr->callSignalAddress.item,
- irr->callSignalAddress.count);
- if (ret < 0)
- return -1;
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int process_ras(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, RasMessage * ras)
-{
- switch (ras->choice) {
- case eRasMessage_gatekeeperRequest:
- return process_grq(pskb, ct, ctinfo, data,
- &ras->gatekeeperRequest);
- case eRasMessage_gatekeeperConfirm:
- return process_gcf(pskb, ct, ctinfo, data,
- &ras->gatekeeperConfirm);
- case eRasMessage_registrationRequest:
- return process_rrq(pskb, ct, ctinfo, data,
- &ras->registrationRequest);
- case eRasMessage_registrationConfirm:
- return process_rcf(pskb, ct, ctinfo, data,
- &ras->registrationConfirm);
- case eRasMessage_unregistrationRequest:
- return process_urq(pskb, ct, ctinfo, data,
- &ras->unregistrationRequest);
- case eRasMessage_admissionRequest:
- return process_arq(pskb, ct, ctinfo, data,
- &ras->admissionRequest);
- case eRasMessage_admissionConfirm:
- return process_acf(pskb, ct, ctinfo, data,
- &ras->admissionConfirm);
- case eRasMessage_locationRequest:
- return process_lrq(pskb, ct, ctinfo, data,
- &ras->locationRequest);
- case eRasMessage_locationConfirm:
- return process_lcf(pskb, ct, ctinfo, data,
- &ras->locationConfirm);
- case eRasMessage_infoRequestResponse:
- return process_irr(pskb, ct, ctinfo, data,
- &ras->infoRequestResponse);
- default:
- DEBUGP("ip_ct_ras: RAS message %d\n", ras->choice);
- break;
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int ras_help(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- static RasMessage ras;
- unsigned char *data;
- int datalen = 0;
- int ret;
-
- DEBUGP("ip_ct_ras: skblen = %u\n", (*pskb)->len);
-
- spin_lock_bh(&ip_h323_lock);
-
- /* Get UDP data */
- data = get_udp_data(pskb, &datalen);
- if (data == NULL)
- goto accept;
- DEBUGP("ip_ct_ras: RAS message %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
- NIPQUAD((*pskb)->nh.iph->saddr),
- NIPQUAD((*pskb)->nh.iph->daddr), datalen);
-
- /* Decode RAS message */
- ret = DecodeRasMessage(data, datalen, &ras);
- if (ret < 0) {
- if (net_ratelimit())
- printk("ip_ct_ras: decoding error: %s\n",
- ret == H323_ERROR_BOUND ?
- "out of bound" : "out of range");
- goto accept;
- }
-
- /* Process RAS message */
- if (process_ras(pskb, ct, ctinfo, &data, &ras) < 0)
- goto drop;
-
- accept:
- spin_unlock_bh(&ip_h323_lock);
- return NF_ACCEPT;
-
- drop:
- spin_unlock_bh(&ip_h323_lock);
- if (net_ratelimit())
- printk("ip_ct_ras: packet dropped\n");
- return NF_DROP;
-}
-
-/****************************************************************************/
-static struct ip_conntrack_helper ip_conntrack_helper_ras = {
- .name = "RAS",
- .me = THIS_MODULE,
- .max_expected = 32,
- .timeout = 240,
- .tuple = {.src = {.u = {.tcp = {.port = __constant_htons(RAS_PORT)}}},
- .dst = {.protonum = IPPROTO_UDP}},
- .mask = {.src = {.u = {0xFFFE}},
- .dst = {.protonum = 0xFF}},
- .help = ras_help,
-};
-
-/****************************************************************************/
-static void ip_conntrack_ras_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this)
-{
- write_lock_bh(&ip_conntrack_lock);
- new->helper = &ip_conntrack_helper_ras;
- write_unlock_bh(&ip_conntrack_lock);
-}
-
-/****************************************************************************/
-/* Not __exit - called from init() */
-static void fini(void)
-{
- ip_conntrack_helper_unregister(&ip_conntrack_helper_ras);
- ip_conntrack_helper_unregister(&ip_conntrack_helper_q931);
- kfree(h323_buffer);
- DEBUGP("ip_ct_h323: fini\n");
-}
-
-/****************************************************************************/
-static int __init init(void)
-{
- int ret;
-
- h323_buffer = kmalloc(65536, GFP_KERNEL);
- if (!h323_buffer)
- return -ENOMEM;
- if ((ret = ip_conntrack_helper_register(&ip_conntrack_helper_q931)) ||
- (ret = ip_conntrack_helper_register(&ip_conntrack_helper_ras))) {
- fini();
- return ret;
- }
- DEBUGP("ip_ct_h323: init success\n");
- return 0;
-}
-
-/****************************************************************************/
-module_init(init);
-module_exit(fini);
-
-EXPORT_SYMBOL_GPL(get_h225_addr);
-EXPORT_SYMBOL_GPL(ip_conntrack_h245_expect);
-EXPORT_SYMBOL_GPL(ip_conntrack_q931_expect);
-EXPORT_SYMBOL_GPL(set_h245_addr_hook);
-EXPORT_SYMBOL_GPL(set_h225_addr_hook);
-EXPORT_SYMBOL_GPL(set_sig_addr_hook);
-EXPORT_SYMBOL_GPL(set_ras_addr_hook);
-EXPORT_SYMBOL_GPL(nat_rtp_rtcp_hook);
-EXPORT_SYMBOL_GPL(nat_t120_hook);
-EXPORT_SYMBOL_GPL(nat_h245_hook);
-EXPORT_SYMBOL_GPL(nat_callforwarding_hook);
-EXPORT_SYMBOL_GPL(nat_q931_hook);
-
-MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
-MODULE_DESCRIPTION("H.323 connection tracking helper");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * ip_conntrack_pptp.c - Version 3.0
- *
- * Connection tracking support for PPTP (Point to Point Tunneling Protocol).
- * PPTP is a a protocol for creating virtual private networks.
- * It is a specification defined by Microsoft and some vendors
- * working with Microsoft. PPTP is built on top of a modified
- * version of the Internet Generic Routing Encapsulation Protocol.
- * GRE is defined in RFC 1701 and RFC 1702. Documentation of
- * PPTP can be found in RFC 2637
- *
- * (C) 2000-2005 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- * Limitations:
- * - We blindly assume that control connections are always
- * established in PNS->PAC direction. This is a violation
- * of RFFC2673
- * - We can only support one single call within each session
- *
- * TODO:
- * - testing of incoming PPTP calls
- *
- * Changes:
- * 2002-02-05 - Version 1.3
- * - Call ip_conntrack_unexpect_related() from
- * pptp_destroy_siblings() to destroy expectations in case
- * CALL_DISCONNECT_NOTIFY or tcp fin packet was seen
- * (Philip Craig <philipc@snapgear.com>)
- * - Add Version information at module loadtime
- * 2002-02-10 - Version 1.6
- * - move to C99 style initializers
- * - remove second expectation if first arrives
- * 2004-10-22 - Version 2.0
- * - merge Mandrake's 2.6.x port with recent 2.6.x API changes
- * - fix lots of linear skb assumptions from Mandrake's port
- * 2005-06-10 - Version 2.1
- * - use ip_conntrack_expect_free() instead of kfree() on the
- * expect's (which are from the slab for quite some time)
- * 2005-06-10 - Version 3.0
- * - port helper to post-2.6.11 API changes,
- * funded by Oxcoda NetBox Blue (http://www.netboxblue.com/)
- * 2005-07-30 - Version 3.1
- * - port helper to 2.6.13 API changes
- *
- */
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-#define IP_CT_PPTP_VERSION "3.1"
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter connection tracking helper module for PPTP");
-
-static DEFINE_SPINLOCK(ip_pptp_lock);
-
-int
-(*ip_nat_pptp_hook_outbound)(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq);
-
-int
-(*ip_nat_pptp_hook_inbound)(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq);
-
-void
-(*ip_nat_pptp_hook_exp_gre)(struct ip_conntrack_expect *expect_orig,
- struct ip_conntrack_expect *expect_reply);
-
-void
-(*ip_nat_pptp_hook_expectfn)(struct ip_conntrack *ct,
- struct ip_conntrack_expect *exp);
-
-#if 0
-/* PptpControlMessageType names */
-const char *pptp_msg_name[] = {
- "UNKNOWN_MESSAGE",
- "START_SESSION_REQUEST",
- "START_SESSION_REPLY",
- "STOP_SESSION_REQUEST",
- "STOP_SESSION_REPLY",
- "ECHO_REQUEST",
- "ECHO_REPLY",
- "OUT_CALL_REQUEST",
- "OUT_CALL_REPLY",
- "IN_CALL_REQUEST",
- "IN_CALL_REPLY",
- "IN_CALL_CONNECT",
- "CALL_CLEAR_REQUEST",
- "CALL_DISCONNECT_NOTIFY",
- "WAN_ERROR_NOTIFY",
- "SET_LINK_INFO"
-};
-EXPORT_SYMBOL(pptp_msg_name);
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s: " format, __FILE__, __FUNCTION__, ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-#define SECS *HZ
-#define MINS * 60 SECS
-#define HOURS * 60 MINS
-
-#define PPTP_GRE_TIMEOUT (10 MINS)
-#define PPTP_GRE_STREAM_TIMEOUT (5 HOURS)
-
-static void pptp_expectfn(struct ip_conntrack *ct,
- struct ip_conntrack_expect *exp)
-{
- typeof(ip_nat_pptp_hook_expectfn) ip_nat_pptp_expectfn;
-
- DEBUGP("increasing timeouts\n");
-
- /* increase timeout of GRE data channel conntrack entry */
- ct->proto.gre.timeout = PPTP_GRE_TIMEOUT;
- ct->proto.gre.stream_timeout = PPTP_GRE_STREAM_TIMEOUT;
-
- /* Can you see how rusty this code is, compared with the pre-2.6.11
- * one? That's what happened to my shiny newnat of 2002 ;( -HW */
-
- rcu_read_lock();
- ip_nat_pptp_expectfn = rcu_dereference(ip_nat_pptp_hook_expectfn);
- if (!ip_nat_pptp_expectfn) {
- struct ip_conntrack_tuple inv_t;
- struct ip_conntrack_expect *exp_other;
-
- /* obviously this tuple inversion only works until you do NAT */
- invert_tuplepr(&inv_t, &exp->tuple);
- DEBUGP("trying to unexpect other dir: ");
- DUMP_TUPLE(&inv_t);
-
- exp_other = ip_conntrack_expect_find_get(&inv_t);
- if (exp_other) {
- /* delete other expectation. */
- DEBUGP("found\n");
- ip_conntrack_unexpect_related(exp_other);
- ip_conntrack_expect_put(exp_other);
- } else {
- DEBUGP("not found\n");
- }
- } else {
- /* we need more than simple inversion */
- ip_nat_pptp_expectfn(ct, exp);
- }
- rcu_read_unlock();
-}
-
-static int destroy_sibling_or_exp(const struct ip_conntrack_tuple *t)
-{
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack_expect *exp;
-
- DEBUGP("trying to timeout ct or exp for tuple ");
- DUMP_TUPLE(t);
-
- h = ip_conntrack_find_get(t, NULL);
- if (h) {
- struct ip_conntrack *sibling = tuplehash_to_ctrack(h);
- DEBUGP("setting timeout of conntrack %p to 0\n", sibling);
- sibling->proto.gre.timeout = 0;
- sibling->proto.gre.stream_timeout = 0;
- if (del_timer(&sibling->timeout))
- sibling->timeout.function((unsigned long)sibling);
- ip_conntrack_put(sibling);
- return 1;
- } else {
- exp = ip_conntrack_expect_find_get(t);
- if (exp) {
- DEBUGP("unexpect_related of expect %p\n", exp);
- ip_conntrack_unexpect_related(exp);
- ip_conntrack_expect_put(exp);
- return 1;
- }
- }
-
- return 0;
-}
-
-
-/* timeout GRE data connections */
-static void pptp_destroy_siblings(struct ip_conntrack *ct)
-{
- struct ip_conntrack_tuple t;
-
- ip_ct_gre_keymap_destroy(ct);
- /* Since ct->sibling_list has literally rusted away in 2.6.11,
- * we now need another way to find out about our sibling
- * contrack and expects... -HW */
-
- /* try original (pns->pac) tuple */
- memcpy(&t, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, sizeof(t));
- t.dst.protonum = IPPROTO_GRE;
- t.src.u.gre.key = ct->help.ct_pptp_info.pns_call_id;
- t.dst.u.gre.key = ct->help.ct_pptp_info.pac_call_id;
-
- if (!destroy_sibling_or_exp(&t))
- DEBUGP("failed to timeout original pns->pac ct/exp\n");
-
- /* try reply (pac->pns) tuple */
- memcpy(&t, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, sizeof(t));
- t.dst.protonum = IPPROTO_GRE;
- t.src.u.gre.key = ct->help.ct_pptp_info.pac_call_id;
- t.dst.u.gre.key = ct->help.ct_pptp_info.pns_call_id;
-
- if (!destroy_sibling_or_exp(&t))
- DEBUGP("failed to timeout reply pac->pns ct/exp\n");
-}
-
-/* expect GRE connections (PNS->PAC and PAC->PNS direction) */
-static inline int
-exp_gre(struct ip_conntrack *ct,
- __be16 callid,
- __be16 peer_callid)
-{
- struct ip_conntrack_expect *exp_orig, *exp_reply;
- int ret = 1;
- typeof(ip_nat_pptp_hook_exp_gre) ip_nat_pptp_exp_gre;
-
- exp_orig = ip_conntrack_expect_alloc(ct);
- if (exp_orig == NULL)
- goto out;
-
- exp_reply = ip_conntrack_expect_alloc(ct);
- if (exp_reply == NULL)
- goto out_put_orig;
-
- /* original direction, PNS->PAC */
- exp_orig->tuple.src.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
- exp_orig->tuple.src.u.gre.key = peer_callid;
- exp_orig->tuple.dst.ip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
- exp_orig->tuple.dst.u.gre.key = callid;
- exp_orig->tuple.dst.protonum = IPPROTO_GRE;
-
- exp_orig->mask.src.ip = htonl(0xffffffff);
- exp_orig->mask.src.u.all = 0;
- exp_orig->mask.dst.u.gre.key = htons(0xffff);
- exp_orig->mask.dst.ip = htonl(0xffffffff);
- exp_orig->mask.dst.protonum = 0xff;
-
- exp_orig->master = ct;
- exp_orig->expectfn = pptp_expectfn;
- exp_orig->flags = 0;
-
- /* both expectations are identical apart from tuple */
- memcpy(exp_reply, exp_orig, sizeof(*exp_reply));
-
- /* reply direction, PAC->PNS */
- exp_reply->tuple.src.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
- exp_reply->tuple.src.u.gre.key = callid;
- exp_reply->tuple.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
- exp_reply->tuple.dst.u.gre.key = peer_callid;
- exp_reply->tuple.dst.protonum = IPPROTO_GRE;
-
- ip_nat_pptp_exp_gre = rcu_dereference(ip_nat_pptp_hook_exp_gre);
- if (ip_nat_pptp_exp_gre)
- ip_nat_pptp_exp_gre(exp_orig, exp_reply);
- if (ip_conntrack_expect_related(exp_orig) != 0)
- goto out_put_both;
- if (ip_conntrack_expect_related(exp_reply) != 0)
- goto out_unexpect_orig;
-
- /* Add GRE keymap entries */
- if (ip_ct_gre_keymap_add(ct, &exp_orig->tuple, 0) != 0)
- goto out_unexpect_both;
- if (ip_ct_gre_keymap_add(ct, &exp_reply->tuple, 1) != 0) {
- ip_ct_gre_keymap_destroy(ct);
- goto out_unexpect_both;
- }
- ret = 0;
-
-out_put_both:
- ip_conntrack_expect_put(exp_reply);
-out_put_orig:
- ip_conntrack_expect_put(exp_orig);
-out:
- return ret;
-
-out_unexpect_both:
- ip_conntrack_unexpect_related(exp_reply);
-out_unexpect_orig:
- ip_conntrack_unexpect_related(exp_orig);
- goto out_put_both;
-}
-
-static inline int
-pptp_inbound_pkt(struct sk_buff **pskb,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq,
- unsigned int reqlen,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
- u_int16_t msg;
- __be16 cid = 0, pcid = 0;
- typeof(ip_nat_pptp_hook_inbound) ip_nat_pptp_inbound;
-
- msg = ntohs(ctlh->messageType);
- DEBUGP("inbound control message %s\n", pptp_msg_name[msg]);
-
- switch (msg) {
- case PPTP_START_SESSION_REPLY:
- /* server confirms new control session */
- if (info->sstate < PPTP_SESSION_REQUESTED)
- goto invalid;
- if (pptpReq->srep.resultCode == PPTP_START_OK)
- info->sstate = PPTP_SESSION_CONFIRMED;
- else
- info->sstate = PPTP_SESSION_ERROR;
- break;
-
- case PPTP_STOP_SESSION_REPLY:
- /* server confirms end of control session */
- if (info->sstate > PPTP_SESSION_STOPREQ)
- goto invalid;
- if (pptpReq->strep.resultCode == PPTP_STOP_OK)
- info->sstate = PPTP_SESSION_NONE;
- else
- info->sstate = PPTP_SESSION_ERROR;
- break;
-
- case PPTP_OUT_CALL_REPLY:
- /* server accepted call, we now expect GRE frames */
- if (info->sstate != PPTP_SESSION_CONFIRMED)
- goto invalid;
- if (info->cstate != PPTP_CALL_OUT_REQ &&
- info->cstate != PPTP_CALL_OUT_CONF)
- goto invalid;
-
- cid = pptpReq->ocack.callID;
- pcid = pptpReq->ocack.peersCallID;
- if (info->pns_call_id != pcid)
- goto invalid;
- DEBUGP("%s, CID=%X, PCID=%X\n", pptp_msg_name[msg],
- ntohs(cid), ntohs(pcid));
-
- if (pptpReq->ocack.resultCode == PPTP_OUTCALL_CONNECT) {
- info->cstate = PPTP_CALL_OUT_CONF;
- info->pac_call_id = cid;
- exp_gre(ct, cid, pcid);
- } else
- info->cstate = PPTP_CALL_NONE;
- break;
-
- case PPTP_IN_CALL_REQUEST:
- /* server tells us about incoming call request */
- if (info->sstate != PPTP_SESSION_CONFIRMED)
- goto invalid;
-
- cid = pptpReq->icreq.callID;
- DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
- info->cstate = PPTP_CALL_IN_REQ;
- info->pac_call_id = cid;
- break;
-
- case PPTP_IN_CALL_CONNECT:
- /* server tells us about incoming call established */
- if (info->sstate != PPTP_SESSION_CONFIRMED)
- goto invalid;
- if (info->cstate != PPTP_CALL_IN_REP &&
- info->cstate != PPTP_CALL_IN_CONF)
- goto invalid;
-
- pcid = pptpReq->iccon.peersCallID;
- cid = info->pac_call_id;
-
- if (info->pns_call_id != pcid)
- goto invalid;
-
- DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(pcid));
- info->cstate = PPTP_CALL_IN_CONF;
-
- /* we expect a GRE connection from PAC to PNS */
- exp_gre(ct, cid, pcid);
- break;
-
- case PPTP_CALL_DISCONNECT_NOTIFY:
- /* server confirms disconnect */
- cid = pptpReq->disc.callID;
- DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
- info->cstate = PPTP_CALL_NONE;
-
- /* untrack this call id, unexpect GRE packets */
- pptp_destroy_siblings(ct);
- break;
-
- case PPTP_WAN_ERROR_NOTIFY:
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* I don't have to explain these ;) */
- break;
- default:
- goto invalid;
- }
-
- ip_nat_pptp_inbound = rcu_dereference(ip_nat_pptp_hook_inbound);
- if (ip_nat_pptp_inbound)
- return ip_nat_pptp_inbound(pskb, ct, ctinfo, ctlh, pptpReq);
- return NF_ACCEPT;
-
-invalid:
- DEBUGP("invalid %s: type=%d cid=%u pcid=%u "
- "cstate=%d sstate=%d pns_cid=%u pac_cid=%u\n",
- msg <= PPTP_MSG_MAX ? pptp_msg_name[msg] : pptp_msg_name[0],
- msg, ntohs(cid), ntohs(pcid), info->cstate, info->sstate,
- ntohs(info->pns_call_id), ntohs(info->pac_call_id));
- return NF_ACCEPT;
-}
-
-static inline int
-pptp_outbound_pkt(struct sk_buff **pskb,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq,
- unsigned int reqlen,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
- u_int16_t msg;
- __be16 cid = 0, pcid = 0;
- typeof(ip_nat_pptp_hook_outbound) ip_nat_pptp_outbound;
-
- msg = ntohs(ctlh->messageType);
- DEBUGP("outbound control message %s\n", pptp_msg_name[msg]);
-
- switch (msg) {
- case PPTP_START_SESSION_REQUEST:
- /* client requests for new control session */
- if (info->sstate != PPTP_SESSION_NONE)
- goto invalid;
- info->sstate = PPTP_SESSION_REQUESTED;
- break;
- case PPTP_STOP_SESSION_REQUEST:
- /* client requests end of control session */
- info->sstate = PPTP_SESSION_STOPREQ;
- break;
-
- case PPTP_OUT_CALL_REQUEST:
- /* client initiating connection to server */
- if (info->sstate != PPTP_SESSION_CONFIRMED)
- goto invalid;
- info->cstate = PPTP_CALL_OUT_REQ;
- /* track PNS call id */
- cid = pptpReq->ocreq.callID;
- DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
- info->pns_call_id = cid;
- break;
- case PPTP_IN_CALL_REPLY:
- /* client answers incoming call */
- if (info->cstate != PPTP_CALL_IN_REQ &&
- info->cstate != PPTP_CALL_IN_REP)
- goto invalid;
-
- cid = pptpReq->icack.callID;
- pcid = pptpReq->icack.peersCallID;
- if (info->pac_call_id != pcid)
- goto invalid;
- DEBUGP("%s, CID=%X PCID=%X\n", pptp_msg_name[msg],
- ntohs(cid), ntohs(pcid));
-
- if (pptpReq->icack.resultCode == PPTP_INCALL_ACCEPT) {
- /* part two of the three-way handshake */
- info->cstate = PPTP_CALL_IN_REP;
- info->pns_call_id = cid;
- } else
- info->cstate = PPTP_CALL_NONE;
- break;
-
- case PPTP_CALL_CLEAR_REQUEST:
- /* client requests hangup of call */
- if (info->sstate != PPTP_SESSION_CONFIRMED)
- goto invalid;
- /* FUTURE: iterate over all calls and check if
- * call ID is valid. We don't do this without newnat,
- * because we only know about last call */
- info->cstate = PPTP_CALL_CLEAR_REQ;
- break;
- case PPTP_SET_LINK_INFO:
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* I don't have to explain these ;) */
- break;
- default:
- goto invalid;
- }
-
- ip_nat_pptp_outbound = rcu_dereference(ip_nat_pptp_hook_outbound);
- if (ip_nat_pptp_outbound)
- return ip_nat_pptp_outbound(pskb, ct, ctinfo, ctlh, pptpReq);
- return NF_ACCEPT;
-
-invalid:
- DEBUGP("invalid %s: type=%d cid=%u pcid=%u "
- "cstate=%d sstate=%d pns_cid=%u pac_cid=%u\n",
- msg <= PPTP_MSG_MAX ? pptp_msg_name[msg] : pptp_msg_name[0],
- msg, ntohs(cid), ntohs(pcid), info->cstate, info->sstate,
- ntohs(info->pns_call_id), ntohs(info->pac_call_id));
- return NF_ACCEPT;
-}
-
-static const unsigned int pptp_msg_size[] = {
- [PPTP_START_SESSION_REQUEST] = sizeof(struct PptpStartSessionRequest),
- [PPTP_START_SESSION_REPLY] = sizeof(struct PptpStartSessionReply),
- [PPTP_STOP_SESSION_REQUEST] = sizeof(struct PptpStopSessionRequest),
- [PPTP_STOP_SESSION_REPLY] = sizeof(struct PptpStopSessionReply),
- [PPTP_OUT_CALL_REQUEST] = sizeof(struct PptpOutCallRequest),
- [PPTP_OUT_CALL_REPLY] = sizeof(struct PptpOutCallReply),
- [PPTP_IN_CALL_REQUEST] = sizeof(struct PptpInCallRequest),
- [PPTP_IN_CALL_REPLY] = sizeof(struct PptpInCallReply),
- [PPTP_IN_CALL_CONNECT] = sizeof(struct PptpInCallConnected),
- [PPTP_CALL_CLEAR_REQUEST] = sizeof(struct PptpClearCallRequest),
- [PPTP_CALL_DISCONNECT_NOTIFY] = sizeof(struct PptpCallDisconnectNotify),
- [PPTP_WAN_ERROR_NOTIFY] = sizeof(struct PptpWanErrorNotify),
- [PPTP_SET_LINK_INFO] = sizeof(struct PptpSetLinkInfo),
-};
-
-/* track caller id inside control connection, call expect_related */
-static int
-conntrack_pptp_help(struct sk_buff **pskb,
- struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-
-{
- int dir = CTINFO2DIR(ctinfo);
- struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
- struct tcphdr _tcph, *tcph;
- struct pptp_pkt_hdr _pptph, *pptph;
- struct PptpControlHeader _ctlh, *ctlh;
- union pptp_ctrl_union _pptpReq, *pptpReq;
- unsigned int tcplen = (*pskb)->len - (*pskb)->nh.iph->ihl * 4;
- unsigned int datalen, reqlen, nexthdr_off;
- int oldsstate, oldcstate;
- int ret;
- u_int16_t msg;
-
- /* don't do any tracking before tcp handshake complete */
- if (ctinfo != IP_CT_ESTABLISHED
- && ctinfo != IP_CT_ESTABLISHED+IP_CT_IS_REPLY) {
- DEBUGP("ctinfo = %u, skipping\n", ctinfo);
- return NF_ACCEPT;
- }
-
- nexthdr_off = (*pskb)->nh.iph->ihl*4;
- tcph = skb_header_pointer(*pskb, nexthdr_off, sizeof(_tcph), &_tcph);
- BUG_ON(!tcph);
- nexthdr_off += tcph->doff * 4;
- datalen = tcplen - tcph->doff * 4;
-
- pptph = skb_header_pointer(*pskb, nexthdr_off, sizeof(_pptph), &_pptph);
- if (!pptph) {
- DEBUGP("no full PPTP header, can't track\n");
- return NF_ACCEPT;
- }
- nexthdr_off += sizeof(_pptph);
- datalen -= sizeof(_pptph);
-
- /* if it's not a control message we can't do anything with it */
- if (ntohs(pptph->packetType) != PPTP_PACKET_CONTROL ||
- ntohl(pptph->magicCookie) != PPTP_MAGIC_COOKIE) {
- DEBUGP("not a control packet\n");
- return NF_ACCEPT;
- }
-
- ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
- if (!ctlh)
- return NF_ACCEPT;
- nexthdr_off += sizeof(_ctlh);
- datalen -= sizeof(_ctlh);
-
- reqlen = datalen;
- msg = ntohs(ctlh->messageType);
- if (msg > 0 && msg <= PPTP_MSG_MAX && reqlen < pptp_msg_size[msg])
- return NF_ACCEPT;
- if (reqlen > sizeof(*pptpReq))
- reqlen = sizeof(*pptpReq);
-
- pptpReq = skb_header_pointer(*pskb, nexthdr_off, reqlen, &_pptpReq);
- if (!pptpReq)
- return NF_ACCEPT;
-
- oldsstate = info->sstate;
- oldcstate = info->cstate;
-
- spin_lock_bh(&ip_pptp_lock);
-
- /* FIXME: We just blindly assume that the control connection is always
- * established from PNS->PAC. However, RFC makes no guarantee */
- if (dir == IP_CT_DIR_ORIGINAL)
- /* client -> server (PNS -> PAC) */
- ret = pptp_outbound_pkt(pskb, ctlh, pptpReq, reqlen, ct,
- ctinfo);
- else
- /* server -> client (PAC -> PNS) */
- ret = pptp_inbound_pkt(pskb, ctlh, pptpReq, reqlen, ct,
- ctinfo);
- DEBUGP("sstate: %d->%d, cstate: %d->%d\n",
- oldsstate, info->sstate, oldcstate, info->cstate);
- spin_unlock_bh(&ip_pptp_lock);
-
- return ret;
-}
-
-/* control protocol helper */
-static struct ip_conntrack_helper pptp = {
- .list = { NULL, NULL },
- .name = "pptp",
- .me = THIS_MODULE,
- .max_expected = 2,
- .timeout = 5 * 60,
- .tuple = { .src = { .ip = 0,
- .u = { .tcp = { .port =
- __constant_htons(PPTP_CONTROL_PORT) } }
- },
- .dst = { .ip = 0,
- .u = { .all = 0 },
- .protonum = IPPROTO_TCP
- }
- },
- .mask = { .src = { .ip = 0,
- .u = { .tcp = { .port = __constant_htons(0xffff) } }
- },
- .dst = { .ip = 0,
- .u = { .all = 0 },
- .protonum = 0xff
- }
- },
- .help = conntrack_pptp_help,
- .destroy = pptp_destroy_siblings,
-};
-
-extern void ip_ct_proto_gre_fini(void);
-extern int __init ip_ct_proto_gre_init(void);
-
-/* ip_conntrack_pptp initialization */
-static int __init ip_conntrack_helper_pptp_init(void)
-{
- int retcode;
-
- retcode = ip_ct_proto_gre_init();
- if (retcode < 0)
- return retcode;
-
- DEBUGP(" registering helper\n");
- if ((retcode = ip_conntrack_helper_register(&pptp))) {
- printk(KERN_ERR "Unable to register conntrack application "
- "helper for pptp: %d\n", retcode);
- ip_ct_proto_gre_fini();
- return retcode;
- }
-
- printk("ip_conntrack_pptp version %s loaded\n", IP_CT_PPTP_VERSION);
- return 0;
-}
-
-static void __exit ip_conntrack_helper_pptp_fini(void)
-{
- ip_conntrack_helper_unregister(&pptp);
- ip_ct_proto_gre_fini();
- printk("ip_conntrack_pptp version %s unloaded\n", IP_CT_PPTP_VERSION);
-}
-
-module_init(ip_conntrack_helper_pptp_init);
-module_exit(ip_conntrack_helper_pptp_fini);
-
-EXPORT_SYMBOL(ip_nat_pptp_hook_outbound);
-EXPORT_SYMBOL(ip_nat_pptp_hook_inbound);
-EXPORT_SYMBOL(ip_nat_pptp_hook_exp_gre);
-EXPORT_SYMBOL(ip_nat_pptp_hook_expectfn);
+++ /dev/null
-/* IRC extension for IP connection tracking, Version 1.21
- * (C) 2000-2002 by Harald Welte <laforge@gnumonks.org>
- * based on RR's ip_conntrack_ftp.c
- *
- * ip_conntrack_irc.c,v 1.21 2002/02/05 14:49:26 laforge Exp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- **
- * Module load syntax:
- * insmod ip_conntrack_irc.o ports=port1,port2,...port<MAX_PORTS>
- * max_dcc_channels=n dcc_timeout=secs
- *
- * please give the ports of all IRC servers You wish to connect to.
- * If You don't specify ports, the default will be port 6667.
- * With max_dcc_channels you can define the maximum number of not
- * yet answered DCC channels per IRC session (default 8).
- * With dcc_timeout you can specify how long the system waits for
- * an expected DCC channel (default 300 seconds).
- *
- */
-
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <net/checksum.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-#include <linux/moduleparam.h>
-
-#define MAX_PORTS 8
-static unsigned short ports[MAX_PORTS];
-static int ports_c;
-static unsigned int max_dcc_channels = 8;
-static unsigned int dcc_timeout = 300;
-/* This is slow, but it's simple. --RR */
-static char *irc_buffer;
-static DEFINE_SPINLOCK(irc_buffer_lock);
-
-unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp);
-EXPORT_SYMBOL_GPL(ip_nat_irc_hook);
-
-MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("IRC (DCC) connection tracking helper");
-MODULE_LICENSE("GPL");
-module_param_array(ports, ushort, &ports_c, 0400);
-MODULE_PARM_DESC(ports, "port numbers of IRC servers");
-module_param(max_dcc_channels, uint, 0400);
-MODULE_PARM_DESC(max_dcc_channels, "max number of expected DCC channels per IRC session");
-module_param(dcc_timeout, uint, 0400);
-MODULE_PARM_DESC(dcc_timeout, "timeout on for unestablished DCC channels");
-
-static const char *dccprotos[] = { "SEND ", "CHAT ", "MOVE ", "TSEND ", "SCHAT " };
-#define MINMATCHLEN 5
-
-#if 0
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s:" format, \
- __FILE__, __FUNCTION__ , ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-static int parse_dcc(char *data, char *data_end, u_int32_t *ip,
- u_int16_t *port, char **ad_beg_p, char **ad_end_p)
-/* tries to get the ip_addr and port out of a dcc command
- return value: -1 on failure, 0 on success
- data pointer to first byte of DCC command data
- data_end pointer to last byte of dcc command data
- ip returns parsed ip of dcc command
- port returns parsed port of dcc command
- ad_beg_p returns pointer to first byte of addr data
- ad_end_p returns pointer to last byte of addr data */
-{
-
- /* at least 12: "AAAAAAAA P\1\n" */
- while (*data++ != ' ')
- if (data > data_end - 12)
- return -1;
-
- *ad_beg_p = data;
- *ip = simple_strtoul(data, &data, 10);
-
- /* skip blanks between ip and port */
- while (*data == ' ') {
- if (data >= data_end)
- return -1;
- data++;
- }
-
- *port = simple_strtoul(data, &data, 10);
- *ad_end_p = data;
-
- return 0;
-}
-
-static int help(struct sk_buff **pskb,
- struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-{
- unsigned int dataoff;
- struct tcphdr _tcph, *th;
- char *data, *data_limit, *ib_ptr;
- int dir = CTINFO2DIR(ctinfo);
- struct ip_conntrack_expect *exp;
- u32 seq;
- u_int32_t dcc_ip;
- u_int16_t dcc_port;
- int i, ret = NF_ACCEPT;
- char *addr_beg_p, *addr_end_p;
- typeof(ip_nat_irc_hook) ip_nat_irc;
-
- DEBUGP("entered\n");
-
- /* If packet is coming from IRC server */
- if (dir == IP_CT_DIR_REPLY)
- return NF_ACCEPT;
-
- /* Until there's been traffic both ways, don't look in packets. */
- if (ctinfo != IP_CT_ESTABLISHED
- && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
- DEBUGP("Conntrackinfo = %u\n", ctinfo);
- return NF_ACCEPT;
- }
-
- /* Not a full tcp header? */
- th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl*4,
- sizeof(_tcph), &_tcph);
- if (th == NULL)
- return NF_ACCEPT;
-
- /* No data? */
- dataoff = (*pskb)->nh.iph->ihl*4 + th->doff*4;
- if (dataoff >= (*pskb)->len)
- return NF_ACCEPT;
-
- spin_lock_bh(&irc_buffer_lock);
- ib_ptr = skb_header_pointer(*pskb, dataoff,
- (*pskb)->len - dataoff, irc_buffer);
- BUG_ON(ib_ptr == NULL);
-
- data = ib_ptr;
- data_limit = ib_ptr + (*pskb)->len - dataoff;
-
- /* strlen("\1DCC SENT t AAAAAAAA P\1\n")=24
- * 5+MINMATCHLEN+strlen("t AAAAAAAA P\1\n")=14 */
- while (data < (data_limit - (19 + MINMATCHLEN))) {
- if (memcmp(data, "\1DCC ", 5)) {
- data++;
- continue;
- }
-
- data += 5;
- /* we have at least (19+MINMATCHLEN)-5 bytes valid data left */
-
- DEBUGP("DCC found in master %u.%u.%u.%u:%u %u.%u.%u.%u:%u...\n",
- NIPQUAD(iph->saddr), ntohs(th->source),
- NIPQUAD(iph->daddr), ntohs(th->dest));
-
- for (i = 0; i < ARRAY_SIZE(dccprotos); i++) {
- if (memcmp(data, dccprotos[i], strlen(dccprotos[i]))) {
- /* no match */
- continue;
- }
-
- DEBUGP("DCC %s detected\n", dccprotos[i]);
- data += strlen(dccprotos[i]);
- /* we have at least
- * (19+MINMATCHLEN)-5-dccprotos[i].matchlen bytes valid
- * data left (== 14/13 bytes) */
- if (parse_dcc((char *)data, data_limit, &dcc_ip,
- &dcc_port, &addr_beg_p, &addr_end_p)) {
- /* unable to parse */
- DEBUGP("unable to parse dcc command\n");
- continue;
- }
- DEBUGP("DCC bound ip/port: %u.%u.%u.%u:%u\n",
- HIPQUAD(dcc_ip), dcc_port);
-
- /* dcc_ip can be the internal OR external (NAT'ed) IP
- * Tiago Sousa <mirage@kaotik.org> */
- if (ct->tuplehash[dir].tuple.src.ip != htonl(dcc_ip)
- && ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip != htonl(dcc_ip)) {
- if (net_ratelimit())
- printk(KERN_WARNING
- "Forged DCC command from "
- "%u.%u.%u.%u: %u.%u.%u.%u:%u\n",
- NIPQUAD(ct->tuplehash[dir].tuple.src.ip),
- HIPQUAD(dcc_ip), dcc_port);
-
- continue;
- }
-
- exp = ip_conntrack_expect_alloc(ct);
- if (exp == NULL) {
- ret = NF_DROP;
- goto out;
- }
-
- /* save position of address in dcc string,
- * necessary for NAT */
- DEBUGP("tcph->seq = %u\n", th->seq);
- seq = ntohl(th->seq) + (addr_beg_p - ib_ptr);
-
- /* We refer to the reverse direction ("!dir")
- * tuples here, because we're expecting
- * something in the other * direction.
- * Doesn't matter unless NAT is happening. */
- exp->tuple = ((struct ip_conntrack_tuple)
- { { 0, { 0 } },
- { ct->tuplehash[!dir].tuple.dst.ip,
- { .tcp = { htons(dcc_port) } },
- IPPROTO_TCP }});
- exp->mask = ((struct ip_conntrack_tuple)
- { { 0, { 0 } },
- { htonl(0xFFFFFFFF),
- { .tcp = { htons(0xFFFF) } }, 0xFF }});
- exp->expectfn = NULL;
- exp->flags = 0;
- ip_nat_irc = rcu_dereference(ip_nat_irc_hook);
- if (ip_nat_irc)
- ret = ip_nat_irc(pskb, ctinfo,
- addr_beg_p - ib_ptr,
- addr_end_p - addr_beg_p,
- exp);
- else if (ip_conntrack_expect_related(exp) != 0)
- ret = NF_DROP;
- ip_conntrack_expect_put(exp);
- goto out;
- } /* for .. NUM_DCCPROTO */
- } /* while data < ... */
-
- out:
- spin_unlock_bh(&irc_buffer_lock);
- return ret;
-}
-
-static struct ip_conntrack_helper irc_helpers[MAX_PORTS];
-static char irc_names[MAX_PORTS][sizeof("irc-65535")];
-
-static void ip_conntrack_irc_fini(void);
-
-static int __init ip_conntrack_irc_init(void)
-{
- int i, ret;
- struct ip_conntrack_helper *hlpr;
- char *tmpname;
-
- if (max_dcc_channels < 1) {
- printk("ip_conntrack_irc: max_dcc_channels must be a positive integer\n");
- return -EBUSY;
- }
-
- irc_buffer = kmalloc(65536, GFP_KERNEL);
- if (!irc_buffer)
- return -ENOMEM;
-
- /* If no port given, default to standard irc port */
- if (ports_c == 0)
- ports[ports_c++] = IRC_PORT;
-
- for (i = 0; i < ports_c; i++) {
- hlpr = &irc_helpers[i];
- hlpr->tuple.src.u.tcp.port = htons(ports[i]);
- hlpr->tuple.dst.protonum = IPPROTO_TCP;
- hlpr->mask.src.u.tcp.port = htons(0xFFFF);
- hlpr->mask.dst.protonum = 0xFF;
- hlpr->max_expected = max_dcc_channels;
- hlpr->timeout = dcc_timeout;
- hlpr->me = THIS_MODULE;
- hlpr->help = help;
-
- tmpname = &irc_names[i][0];
- if (ports[i] == IRC_PORT)
- sprintf(tmpname, "irc");
- else
- sprintf(tmpname, "irc-%d", i);
- hlpr->name = tmpname;
-
- DEBUGP("port #%d: %d\n", i, ports[i]);
-
- ret = ip_conntrack_helper_register(hlpr);
-
- if (ret) {
- printk("ip_conntrack_irc: ERROR registering port %d\n",
- ports[i]);
- ip_conntrack_irc_fini();
- return -EBUSY;
- }
- }
- return 0;
-}
-
-/* This function is intentionally _NOT_ defined as __exit, because
- * it is needed by the init function */
-static void ip_conntrack_irc_fini(void)
-{
- int i;
- for (i = 0; i < ports_c; i++) {
- DEBUGP("unregistering port %d\n",
- ports[i]);
- ip_conntrack_helper_unregister(&irc_helpers[i]);
- }
- kfree(irc_buffer);
-}
-
-module_init(ip_conntrack_irc_init);
-module_exit(ip_conntrack_irc_fini);
+++ /dev/null
-/*
- * NetBIOS name service broadcast connection tracking helper
- *
- * (c) 2005 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-/*
- * This helper tracks locally originating NetBIOS name service
- * requests by issuing permanent expectations (valid until
- * timing out) matching all reply connections from the
- * destination network. The only NetBIOS specific thing is
- * actually the port number.
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/inetdevice.h>
-#include <linux/if_addr.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <net/route.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-#define NMBD_PORT 137
-
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_DESCRIPTION("NetBIOS name service broadcast connection tracking helper");
-MODULE_LICENSE("GPL");
-
-static unsigned int timeout = 3;
-module_param(timeout, uint, 0400);
-MODULE_PARM_DESC(timeout, "timeout for master connection/replies in seconds");
-
-static int help(struct sk_buff **pskb,
- struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-{
- struct ip_conntrack_expect *exp;
- struct iphdr *iph = (*pskb)->nh.iph;
- struct rtable *rt = (struct rtable *)(*pskb)->dst;
- struct in_device *in_dev;
- __be32 mask = 0;
-
- /* we're only interested in locally generated packets */
- if ((*pskb)->sk == NULL)
- goto out;
- if (rt == NULL || !(rt->rt_flags & RTCF_BROADCAST))
- goto out;
- if (CTINFO2DIR(ctinfo) != IP_CT_DIR_ORIGINAL)
- goto out;
-
- rcu_read_lock();
- in_dev = __in_dev_get_rcu(rt->u.dst.dev);
- if (in_dev != NULL) {
- for_primary_ifa(in_dev) {
- if (ifa->ifa_broadcast == iph->daddr) {
- mask = ifa->ifa_mask;
- break;
- }
- } endfor_ifa(in_dev);
- }
- rcu_read_unlock();
-
- if (mask == 0)
- goto out;
-
- exp = ip_conntrack_expect_alloc(ct);
- if (exp == NULL)
- goto out;
-
- exp->tuple = ct->tuplehash[IP_CT_DIR_REPLY].tuple;
- exp->tuple.src.u.udp.port = htons(NMBD_PORT);
-
- exp->mask.src.ip = mask;
- exp->mask.src.u.udp.port = htons(0xFFFF);
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.udp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
-
- exp->expectfn = NULL;
- exp->flags = IP_CT_EXPECT_PERMANENT;
-
- ip_conntrack_expect_related(exp);
- ip_conntrack_expect_put(exp);
-
- ip_ct_refresh(ct, *pskb, timeout * HZ);
-out:
- return NF_ACCEPT;
-}
-
-static struct ip_conntrack_helper helper = {
- .name = "netbios-ns",
- .tuple = {
- .src = {
- .u = {
- .udp = {
- .port = __constant_htons(NMBD_PORT),
- }
- }
- },
- .dst = {
- .protonum = IPPROTO_UDP,
- },
- },
- .mask = {
- .src = {
- .u = {
- .udp = {
- .port = __constant_htons(0xFFFF),
- }
- }
- },
- .dst = {
- .protonum = 0xFF,
- },
- },
- .max_expected = 1,
- .me = THIS_MODULE,
- .help = help,
-};
-
-static int __init ip_conntrack_netbios_ns_init(void)
-{
- helper.timeout = timeout;
- return ip_conntrack_helper_register(&helper);
-}
-
-static void __exit ip_conntrack_netbios_ns_fini(void)
-{
- ip_conntrack_helper_unregister(&helper);
-}
-
-module_init(ip_conntrack_netbios_ns_init);
-module_exit(ip_conntrack_netbios_ns_fini);
+++ /dev/null
-/* Connection tracking via netlink socket. Allows for user space
- * protocol helpers and general trouble making from userspace.
- *
- * (C) 2001 by Jay Schulist <jschlst@samba.org>
- * (C) 2002-2005 by Harald Welte <laforge@gnumonks.org>
- * (C) 2003 by Patrick Mchardy <kaber@trash.net>
- * (C) 2005-2006 by Pablo Neira Ayuso <pablo@eurodev.net>
- *
- * I've reworked this stuff to use attributes instead of conntrack
- * structures. 5.44 am. I need more tea. --pablo 05/07/11.
- *
- * Initial connection tracking via netlink development funded and
- * generally made possible by Network Robots, Inc. (www.networkrobots.com)
- *
- * Further development of this code funded by Astaro AG (http://www.astaro.com)
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/skbuff.h>
-#include <linux/errno.h>
-#include <linux/netlink.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/notifier.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-
-MODULE_LICENSE("GPL");
-
-static char __initdata version[] = "0.90";
-
-static inline int
-ctnetlink_dump_tuples_proto(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple,
- struct ip_conntrack_protocol *proto)
-{
- int ret = 0;
- struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_PROTO);
-
- NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
-
- if (likely(proto->tuple_to_nfattr))
- ret = proto->tuple_to_nfattr(skb, tuple);
-
- NFA_NEST_END(skb, nest_parms);
-
- return ret;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_dump_tuples_ip(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple)
-{
- struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_IP);
-
- NFA_PUT(skb, CTA_IP_V4_SRC, sizeof(__be32), &tuple->src.ip);
- NFA_PUT(skb, CTA_IP_V4_DST, sizeof(__be32), &tuple->dst.ip);
-
- NFA_NEST_END(skb, nest_parms);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_dump_tuples(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple)
-{
- int ret;
- struct ip_conntrack_protocol *proto;
-
- ret = ctnetlink_dump_tuples_ip(skb, tuple);
- if (unlikely(ret < 0))
- return ret;
-
- proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
- ret = ctnetlink_dump_tuples_proto(skb, tuple, proto);
- ip_conntrack_proto_put(proto);
-
- return ret;
-}
-
-static inline int
-ctnetlink_dump_status(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- __be32 status = htonl((u_int32_t) ct->status);
- NFA_PUT(skb, CTA_STATUS, sizeof(status), &status);
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_dump_timeout(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- long timeout_l = ct->timeout.expires - jiffies;
- __be32 timeout;
-
- if (timeout_l < 0)
- timeout = 0;
- else
- timeout = htonl(timeout_l / HZ);
-
- NFA_PUT(skb, CTA_TIMEOUT, sizeof(timeout), &timeout);
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- struct ip_conntrack_protocol *proto = ip_conntrack_proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
-
- struct nfattr *nest_proto;
- int ret;
-
- if (!proto->to_nfattr) {
- ip_conntrack_proto_put(proto);
- return 0;
- }
-
- nest_proto = NFA_NEST(skb, CTA_PROTOINFO);
-
- ret = proto->to_nfattr(skb, nest_proto, ct);
-
- ip_conntrack_proto_put(proto);
-
- NFA_NEST_END(skb, nest_proto);
-
- return ret;
-
-nfattr_failure:
- ip_conntrack_proto_put(proto);
- return -1;
-}
-
-static inline int
-ctnetlink_dump_helpinfo(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- struct nfattr *nest_helper;
-
- if (!ct->helper)
- return 0;
-
- nest_helper = NFA_NEST(skb, CTA_HELP);
- NFA_PUT(skb, CTA_HELP_NAME, strlen(ct->helper->name), ct->helper->name);
-
- if (ct->helper->to_nfattr)
- ct->helper->to_nfattr(skb, ct);
-
- NFA_NEST_END(skb, nest_helper);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-#ifdef CONFIG_IP_NF_CT_ACCT
-static inline int
-ctnetlink_dump_counters(struct sk_buff *skb, const struct ip_conntrack *ct,
- enum ip_conntrack_dir dir)
-{
- enum ctattr_type type = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG;
- struct nfattr *nest_count = NFA_NEST(skb, type);
- __be32 tmp;
-
- tmp = htonl(ct->counters[dir].packets);
- NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(__be32), &tmp);
-
- tmp = htonl(ct->counters[dir].bytes);
- NFA_PUT(skb, CTA_COUNTERS32_BYTES, sizeof(__be32), &tmp);
-
- NFA_NEST_END(skb, nest_count);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-#else
-#define ctnetlink_dump_counters(a, b, c) (0)
-#endif
-
-#ifdef CONFIG_IP_NF_CONNTRACK_MARK
-static inline int
-ctnetlink_dump_mark(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- __be32 mark = htonl(ct->mark);
-
- NFA_PUT(skb, CTA_MARK, sizeof(__be32), &mark);
- return 0;
-
-nfattr_failure:
- return -1;
-}
-#else
-#define ctnetlink_dump_mark(a, b) (0)
-#endif
-
-static inline int
-ctnetlink_dump_id(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- __be32 id = htonl(ct->id);
- NFA_PUT(skb, CTA_ID, sizeof(__be32), &id);
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_dump_use(struct sk_buff *skb, const struct ip_conntrack *ct)
-{
- __be32 use = htonl(atomic_read(&ct->ct_general.use));
-
- NFA_PUT(skb, CTA_USE, sizeof(__be32), &use);
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-#define tuple(ct, dir) (&(ct)->tuplehash[dir].tuple)
-
-static int
-ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
- int event, int nowait,
- const struct ip_conntrack *ct)
-{
- struct nlmsghdr *nlh;
- struct nfgenmsg *nfmsg;
- struct nfattr *nest_parms;
- unsigned char *b;
-
- b = skb->tail;
-
- event |= NFNL_SUBSYS_CTNETLINK << 8;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(struct nfgenmsg));
- nfmsg = NLMSG_DATA(nlh);
-
- nlh->nlmsg_flags = (nowait && pid) ? NLM_F_MULTI : 0;
- nfmsg->nfgen_family = AF_INET;
- nfmsg->version = NFNETLINK_V0;
- nfmsg->res_id = 0;
-
- nest_parms = NFA_NEST(skb, CTA_TUPLE_ORIG);
- if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
- goto nfattr_failure;
- NFA_NEST_END(skb, nest_parms);
-
- nest_parms = NFA_NEST(skb, CTA_TUPLE_REPLY);
- if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
- goto nfattr_failure;
- NFA_NEST_END(skb, nest_parms);
-
- if (ctnetlink_dump_status(skb, ct) < 0 ||
- ctnetlink_dump_timeout(skb, ct) < 0 ||
- ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
- ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0 ||
- ctnetlink_dump_protoinfo(skb, ct) < 0 ||
- ctnetlink_dump_helpinfo(skb, ct) < 0 ||
- ctnetlink_dump_mark(skb, ct) < 0 ||
- ctnetlink_dump_id(skb, ct) < 0 ||
- ctnetlink_dump_use(skb, ct) < 0)
- goto nfattr_failure;
-
- nlh->nlmsg_len = skb->tail - b;
- return skb->len;
-
-nlmsg_failure:
-nfattr_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-}
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-static int ctnetlink_conntrack_event(struct notifier_block *this,
- unsigned long events, void *ptr)
-{
- struct nlmsghdr *nlh;
- struct nfgenmsg *nfmsg;
- struct nfattr *nest_parms;
- struct ip_conntrack *ct = (struct ip_conntrack *)ptr;
- struct sk_buff *skb;
- unsigned int type;
- unsigned char *b;
- unsigned int flags = 0, group;
-
- /* ignore our fake conntrack entry */
- if (ct == &ip_conntrack_untracked)
- return NOTIFY_DONE;
-
- if (events & IPCT_DESTROY) {
- type = IPCTNL_MSG_CT_DELETE;
- group = NFNLGRP_CONNTRACK_DESTROY;
- } else if (events & (IPCT_NEW | IPCT_RELATED)) {
- type = IPCTNL_MSG_CT_NEW;
- flags = NLM_F_CREATE|NLM_F_EXCL;
- group = NFNLGRP_CONNTRACK_NEW;
- } else if (events & (IPCT_STATUS | IPCT_PROTOINFO)) {
- type = IPCTNL_MSG_CT_NEW;
- group = NFNLGRP_CONNTRACK_UPDATE;
- } else
- return NOTIFY_DONE;
-
- if (!nfnetlink_has_listeners(group))
- return NOTIFY_DONE;
-
- skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
- if (!skb)
- return NOTIFY_DONE;
-
- b = skb->tail;
-
- type |= NFNL_SUBSYS_CTNETLINK << 8;
- nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(struct nfgenmsg));
- nfmsg = NLMSG_DATA(nlh);
-
- nlh->nlmsg_flags = flags;
- nfmsg->nfgen_family = AF_INET;
- nfmsg->version = NFNETLINK_V0;
- nfmsg->res_id = 0;
-
- nest_parms = NFA_NEST(skb, CTA_TUPLE_ORIG);
- if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
- goto nfattr_failure;
- NFA_NEST_END(skb, nest_parms);
-
- nest_parms = NFA_NEST(skb, CTA_TUPLE_REPLY);
- if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
- goto nfattr_failure;
- NFA_NEST_END(skb, nest_parms);
-
- if (events & IPCT_DESTROY) {
- if (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
- ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0)
- goto nfattr_failure;
- } else {
- if (ctnetlink_dump_status(skb, ct) < 0)
- goto nfattr_failure;
-
- if (ctnetlink_dump_timeout(skb, ct) < 0)
- goto nfattr_failure;
-
- if (events & IPCT_PROTOINFO
- && ctnetlink_dump_protoinfo(skb, ct) < 0)
- goto nfattr_failure;
-
- if ((events & IPCT_HELPER || ct->helper)
- && ctnetlink_dump_helpinfo(skb, ct) < 0)
- goto nfattr_failure;
-
-#ifdef CONFIG_IP_NF_CONNTRACK_MARK
- if ((events & IPCT_MARK || ct->mark)
- && ctnetlink_dump_mark(skb, ct) < 0)
- goto nfattr_failure;
-#endif
-
- if (events & IPCT_COUNTER_FILLING &&
- (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
- ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0))
- goto nfattr_failure;
- }
-
- nlh->nlmsg_len = skb->tail - b;
- nfnetlink_send(skb, 0, group, 0);
- return NOTIFY_DONE;
-
-nlmsg_failure:
-nfattr_failure:
- kfree_skb(skb);
- return NOTIFY_DONE;
-}
-#endif /* CONFIG_IP_NF_CONNTRACK_EVENTS */
-
-static int ctnetlink_done(struct netlink_callback *cb)
-{
- if (cb->args[1])
- ip_conntrack_put((struct ip_conntrack *)cb->args[1]);
- return 0;
-}
-
-static int
-ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
-{
- struct ip_conntrack *ct, *last;
- struct ip_conntrack_tuple_hash *h;
- struct list_head *i;
-
- read_lock_bh(&ip_conntrack_lock);
- last = (struct ip_conntrack *)cb->args[1];
- for (; cb->args[0] < ip_conntrack_htable_size; cb->args[0]++) {
-restart:
- list_for_each_prev(i, &ip_conntrack_hash[cb->args[0]]) {
- h = (struct ip_conntrack_tuple_hash *) i;
- if (DIRECTION(h) != IP_CT_DIR_ORIGINAL)
- continue;
- ct = tuplehash_to_ctrack(h);
- if (cb->args[1]) {
- if (ct != last)
- continue;
- cb->args[1] = 0;
- }
- if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- IPCTNL_MSG_CT_NEW,
- 1, ct) < 0) {
- nf_conntrack_get(&ct->ct_general);
- cb->args[1] = (unsigned long)ct;
- goto out;
- }
-#ifdef CONFIG_NF_CT_ACCT
- if (NFNL_MSG_TYPE(cb->nlh->nlmsg_type) ==
- IPCTNL_MSG_CT_GET_CTRZERO)
- memset(&ct->counters, 0, sizeof(ct->counters));
-#endif
- }
- if (cb->args[1]) {
- cb->args[1] = 0;
- goto restart;
- }
- }
-out:
- read_unlock_bh(&ip_conntrack_lock);
- if (last)
- ip_conntrack_put(last);
-
- return skb->len;
-}
-
-static const size_t cta_min_ip[CTA_IP_MAX] = {
- [CTA_IP_V4_SRC-1] = sizeof(__be32),
- [CTA_IP_V4_DST-1] = sizeof(__be32),
-};
-
-static inline int
-ctnetlink_parse_tuple_ip(struct nfattr *attr, struct ip_conntrack_tuple *tuple)
-{
- struct nfattr *tb[CTA_IP_MAX];
-
- nfattr_parse_nested(tb, CTA_IP_MAX, attr);
-
- if (nfattr_bad_size(tb, CTA_IP_MAX, cta_min_ip))
- return -EINVAL;
-
- if (!tb[CTA_IP_V4_SRC-1])
- return -EINVAL;
- tuple->src.ip = *(__be32 *)NFA_DATA(tb[CTA_IP_V4_SRC-1]);
-
- if (!tb[CTA_IP_V4_DST-1])
- return -EINVAL;
- tuple->dst.ip = *(__be32 *)NFA_DATA(tb[CTA_IP_V4_DST-1]);
-
- return 0;
-}
-
-static const size_t cta_min_proto[CTA_PROTO_MAX] = {
- [CTA_PROTO_NUM-1] = sizeof(u_int8_t),
- [CTA_PROTO_SRC_PORT-1] = sizeof(u_int16_t),
- [CTA_PROTO_DST_PORT-1] = sizeof(u_int16_t),
- [CTA_PROTO_ICMP_TYPE-1] = sizeof(u_int8_t),
- [CTA_PROTO_ICMP_CODE-1] = sizeof(u_int8_t),
- [CTA_PROTO_ICMP_ID-1] = sizeof(u_int16_t),
-};
-
-static inline int
-ctnetlink_parse_tuple_proto(struct nfattr *attr,
- struct ip_conntrack_tuple *tuple)
-{
- struct nfattr *tb[CTA_PROTO_MAX];
- struct ip_conntrack_protocol *proto;
- int ret = 0;
-
- nfattr_parse_nested(tb, CTA_PROTO_MAX, attr);
-
- if (nfattr_bad_size(tb, CTA_PROTO_MAX, cta_min_proto))
- return -EINVAL;
-
- if (!tb[CTA_PROTO_NUM-1])
- return -EINVAL;
- tuple->dst.protonum = *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_NUM-1]);
-
- proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
-
- if (likely(proto->nfattr_to_tuple))
- ret = proto->nfattr_to_tuple(tb, tuple);
-
- ip_conntrack_proto_put(proto);
-
- return ret;
-}
-
-static inline int
-ctnetlink_parse_tuple(struct nfattr *cda[], struct ip_conntrack_tuple *tuple,
- enum ctattr_tuple type)
-{
- struct nfattr *tb[CTA_TUPLE_MAX];
- int err;
-
- memset(tuple, 0, sizeof(*tuple));
-
- nfattr_parse_nested(tb, CTA_TUPLE_MAX, cda[type-1]);
-
- if (!tb[CTA_TUPLE_IP-1])
- return -EINVAL;
-
- err = ctnetlink_parse_tuple_ip(tb[CTA_TUPLE_IP-1], tuple);
- if (err < 0)
- return err;
-
- if (!tb[CTA_TUPLE_PROTO-1])
- return -EINVAL;
-
- err = ctnetlink_parse_tuple_proto(tb[CTA_TUPLE_PROTO-1], tuple);
- if (err < 0)
- return err;
-
- /* orig and expect tuples get DIR_ORIGINAL */
- if (type == CTA_TUPLE_REPLY)
- tuple->dst.dir = IP_CT_DIR_REPLY;
- else
- tuple->dst.dir = IP_CT_DIR_ORIGINAL;
-
- return 0;
-}
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-static const size_t cta_min_protonat[CTA_PROTONAT_MAX] = {
- [CTA_PROTONAT_PORT_MIN-1] = sizeof(u_int16_t),
- [CTA_PROTONAT_PORT_MAX-1] = sizeof(u_int16_t),
-};
-
-static int ctnetlink_parse_nat_proto(struct nfattr *attr,
- const struct ip_conntrack *ct,
- struct ip_nat_range *range)
-{
- struct nfattr *tb[CTA_PROTONAT_MAX];
- struct ip_nat_protocol *npt;
-
- nfattr_parse_nested(tb, CTA_PROTONAT_MAX, attr);
-
- if (nfattr_bad_size(tb, CTA_PROTONAT_MAX, cta_min_protonat))
- return -EINVAL;
-
- npt = ip_nat_proto_find_get(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
-
- if (!npt->nfattr_to_range) {
- ip_nat_proto_put(npt);
- return 0;
- }
-
- /* nfattr_to_range returns 1 if it parsed, 0 if not, neg. on error */
- if (npt->nfattr_to_range(tb, range) > 0)
- range->flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
-
- ip_nat_proto_put(npt);
-
- return 0;
-}
-
-static const size_t cta_min_nat[CTA_NAT_MAX] = {
- [CTA_NAT_MINIP-1] = sizeof(__be32),
- [CTA_NAT_MAXIP-1] = sizeof(__be32),
-};
-
-static inline int
-ctnetlink_parse_nat(struct nfattr *nat,
- const struct ip_conntrack *ct, struct ip_nat_range *range)
-{
- struct nfattr *tb[CTA_NAT_MAX];
- int err;
-
- memset(range, 0, sizeof(*range));
-
- nfattr_parse_nested(tb, CTA_NAT_MAX, nat);
-
- if (nfattr_bad_size(tb, CTA_NAT_MAX, cta_min_nat))
- return -EINVAL;
-
- if (tb[CTA_NAT_MINIP-1])
- range->min_ip = *(__be32 *)NFA_DATA(tb[CTA_NAT_MINIP-1]);
-
- if (!tb[CTA_NAT_MAXIP-1])
- range->max_ip = range->min_ip;
- else
- range->max_ip = *(__be32 *)NFA_DATA(tb[CTA_NAT_MAXIP-1]);
-
- if (range->min_ip)
- range->flags |= IP_NAT_RANGE_MAP_IPS;
-
- if (!tb[CTA_NAT_PROTO-1])
- return 0;
-
- err = ctnetlink_parse_nat_proto(tb[CTA_NAT_PROTO-1], ct, range);
- if (err < 0)
- return err;
-
- return 0;
-}
-#endif
-
-static inline int
-ctnetlink_parse_help(struct nfattr *attr, char **helper_name)
-{
- struct nfattr *tb[CTA_HELP_MAX];
-
- nfattr_parse_nested(tb, CTA_HELP_MAX, attr);
-
- if (!tb[CTA_HELP_NAME-1])
- return -EINVAL;
-
- *helper_name = NFA_DATA(tb[CTA_HELP_NAME-1]);
-
- return 0;
-}
-
-static const size_t cta_min[CTA_MAX] = {
- [CTA_STATUS-1] = sizeof(__be32),
- [CTA_TIMEOUT-1] = sizeof(__be32),
- [CTA_MARK-1] = sizeof(__be32),
- [CTA_USE-1] = sizeof(__be32),
- [CTA_ID-1] = sizeof(__be32)
-};
-
-static int
-ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
-{
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack *ct;
- int err = 0;
-
- if (nfattr_bad_size(cda, CTA_MAX, cta_min))
- return -EINVAL;
-
- if (cda[CTA_TUPLE_ORIG-1])
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_ORIG);
- else if (cda[CTA_TUPLE_REPLY-1])
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_REPLY);
- else {
- /* Flush the whole table */
- ip_conntrack_flush();
- return 0;
- }
-
- if (err < 0)
- return err;
-
- h = ip_conntrack_find_get(&tuple, NULL);
- if (!h)
- return -ENOENT;
-
- ct = tuplehash_to_ctrack(h);
-
- if (cda[CTA_ID-1]) {
- u_int32_t id = ntohl(*(__be32 *)NFA_DATA(cda[CTA_ID-1]));
- if (ct->id != id) {
- ip_conntrack_put(ct);
- return -ENOENT;
- }
- }
- if (del_timer(&ct->timeout))
- ct->timeout.function((unsigned long)ct);
-
- ip_conntrack_put(ct);
-
- return 0;
-}
-
-static int
-ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
-{
- struct ip_conntrack_tuple_hash *h;
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack *ct;
- struct sk_buff *skb2 = NULL;
- int err = 0;
-
- if (nlh->nlmsg_flags & NLM_F_DUMP) {
- struct nfgenmsg *msg = NLMSG_DATA(nlh);
- u32 rlen;
-
- if (msg->nfgen_family != AF_INET)
- return -EAFNOSUPPORT;
-
-#ifndef CONFIG_IP_NF_CT_ACCT
- if (NFNL_MSG_TYPE(nlh->nlmsg_type) == IPCTNL_MSG_CT_GET_CTRZERO)
- return -ENOTSUPP;
-#endif
- if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_dump_table,
- ctnetlink_done)) != 0)
- return -EINVAL;
-
- rlen = NLMSG_ALIGN(nlh->nlmsg_len);
- if (rlen > skb->len)
- rlen = skb->len;
- skb_pull(skb, rlen);
- return 0;
- }
-
- if (nfattr_bad_size(cda, CTA_MAX, cta_min))
- return -EINVAL;
-
- if (cda[CTA_TUPLE_ORIG-1])
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_ORIG);
- else if (cda[CTA_TUPLE_REPLY-1])
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_TUPLE_REPLY);
- else
- return -EINVAL;
-
- if (err < 0)
- return err;
-
- h = ip_conntrack_find_get(&tuple, NULL);
- if (!h)
- return -ENOENT;
-
- ct = tuplehash_to_ctrack(h);
-
- err = -ENOMEM;
- skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!skb2) {
- ip_conntrack_put(ct);
- return -ENOMEM;
- }
-
- err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq,
- IPCTNL_MSG_CT_NEW, 1, ct);
- ip_conntrack_put(ct);
- if (err <= 0)
- goto free;
-
- err = netlink_unicast(ctnl, skb2, NETLINK_CB(skb).pid, MSG_DONTWAIT);
- if (err < 0)
- goto out;
-
- return 0;
-
-free:
- kfree_skb(skb2);
-out:
- return err;
-}
-
-static inline int
-ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[])
-{
- unsigned long d;
- unsigned status = ntohl(*(__be32 *)NFA_DATA(cda[CTA_STATUS-1]));
- d = ct->status ^ status;
-
- if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
- /* unchangeable */
- return -EINVAL;
-
- if (d & IPS_SEEN_REPLY && !(status & IPS_SEEN_REPLY))
- /* SEEN_REPLY bit can only be set */
- return -EINVAL;
-
-
- if (d & IPS_ASSURED && !(status & IPS_ASSURED))
- /* ASSURED bit can only be set */
- return -EINVAL;
-
- if (cda[CTA_NAT_SRC-1] || cda[CTA_NAT_DST-1]) {
-#ifndef CONFIG_IP_NF_NAT_NEEDED
- return -EINVAL;
-#else
- struct ip_nat_range range;
-
- if (cda[CTA_NAT_DST-1]) {
- if (ctnetlink_parse_nat(cda[CTA_NAT_DST-1], ct,
- &range) < 0)
- return -EINVAL;
- if (ip_nat_initialized(ct,
- HOOK2MANIP(NF_IP_PRE_ROUTING)))
- return -EEXIST;
- ip_nat_setup_info(ct, &range, NF_IP_PRE_ROUTING);
- }
- if (cda[CTA_NAT_SRC-1]) {
- if (ctnetlink_parse_nat(cda[CTA_NAT_SRC-1], ct,
- &range) < 0)
- return -EINVAL;
- if (ip_nat_initialized(ct,
- HOOK2MANIP(NF_IP_POST_ROUTING)))
- return -EEXIST;
- ip_nat_setup_info(ct, &range, NF_IP_POST_ROUTING);
- }
-#endif
- }
-
- /* Be careful here, modifying NAT bits can screw up things,
- * so don't let users modify them directly if they don't pass
- * ip_nat_range. */
- ct->status |= status & ~(IPS_NAT_DONE_MASK | IPS_NAT_MASK);
- return 0;
-}
-
-
-static inline int
-ctnetlink_change_helper(struct ip_conntrack *ct, struct nfattr *cda[])
-{
- struct ip_conntrack_helper *helper;
- char *helpname;
- int err;
-
- /* don't change helper of sibling connections */
- if (ct->master)
- return -EINVAL;
-
- err = ctnetlink_parse_help(cda[CTA_HELP-1], &helpname);
- if (err < 0)
- return err;
-
- helper = __ip_conntrack_helper_find_byname(helpname);
- if (!helper) {
- if (!strcmp(helpname, ""))
- helper = NULL;
- else
- return -EINVAL;
- }
-
- if (ct->helper) {
- if (!helper) {
- /* we had a helper before ... */
- ip_ct_remove_expectations(ct);
- ct->helper = NULL;
- } else {
- /* need to zero data of old helper */
- memset(&ct->help, 0, sizeof(ct->help));
- }
- }
-
- ct->helper = helper;
-
- return 0;
-}
-
-static inline int
-ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[])
-{
- u_int32_t timeout = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));
-
- if (!del_timer(&ct->timeout))
- return -ETIME;
-
- ct->timeout.expires = jiffies + timeout * HZ;
- add_timer(&ct->timeout);
-
- return 0;
-}
-
-static inline int
-ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[])
-{
- struct nfattr *tb[CTA_PROTOINFO_MAX], *attr = cda[CTA_PROTOINFO-1];
- struct ip_conntrack_protocol *proto;
- u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
- int err = 0;
-
- nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr);
-
- proto = ip_conntrack_proto_find_get(npt);
-
- if (proto->from_nfattr)
- err = proto->from_nfattr(tb, ct);
- ip_conntrack_proto_put(proto);
-
- return err;
-}
-
-static int
-ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
-{
- int err;
-
- if (cda[CTA_HELP-1]) {
- err = ctnetlink_change_helper(ct, cda);
- if (err < 0)
- return err;
- }
-
- if (cda[CTA_TIMEOUT-1]) {
- err = ctnetlink_change_timeout(ct, cda);
- if (err < 0)
- return err;
- }
-
- if (cda[CTA_STATUS-1]) {
- err = ctnetlink_change_status(ct, cda);
- if (err < 0)
- return err;
- }
-
- if (cda[CTA_PROTOINFO-1]) {
- err = ctnetlink_change_protoinfo(ct, cda);
- if (err < 0)
- return err;
- }
-
-#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
- if (cda[CTA_MARK-1])
- ct->mark = ntohl(*(__be32 *)NFA_DATA(cda[CTA_MARK-1]));
-#endif
-
- return 0;
-}
-
-static int
-ctnetlink_create_conntrack(struct nfattr *cda[],
- struct ip_conntrack_tuple *otuple,
- struct ip_conntrack_tuple *rtuple)
-{
- struct ip_conntrack *ct;
- int err = -EINVAL;
-
- ct = ip_conntrack_alloc(otuple, rtuple);
- if (ct == NULL || IS_ERR(ct))
- return -ENOMEM;
-
- if (!cda[CTA_TIMEOUT-1])
- goto err;
- ct->timeout.expires = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));
-
- ct->timeout.expires = jiffies + ct->timeout.expires * HZ;
- ct->status |= IPS_CONFIRMED;
-
- if (cda[CTA_STATUS-1]) {
- err = ctnetlink_change_status(ct, cda);
- if (err < 0)
- goto err;
- }
-
- if (cda[CTA_PROTOINFO-1]) {
- err = ctnetlink_change_protoinfo(ct, cda);
- if (err < 0)
- goto err;
- }
-
-#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
- if (cda[CTA_MARK-1])
- ct->mark = ntohl(*(__be32 *)NFA_DATA(cda[CTA_MARK-1]));
-#endif
-
- ct->helper = ip_conntrack_helper_find_get(rtuple);
-
- add_timer(&ct->timeout);
- ip_conntrack_hash_insert(ct);
-
- if (ct->helper)
- ip_conntrack_helper_put(ct->helper);
-
- return 0;
-
-err:
- ip_conntrack_free(ct);
- return err;
-}
-
-static int
-ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
-{
- struct ip_conntrack_tuple otuple, rtuple;
- struct ip_conntrack_tuple_hash *h = NULL;
- int err = 0;
-
- if (nfattr_bad_size(cda, CTA_MAX, cta_min))
- return -EINVAL;
-
- if (cda[CTA_TUPLE_ORIG-1]) {
- err = ctnetlink_parse_tuple(cda, &otuple, CTA_TUPLE_ORIG);
- if (err < 0)
- return err;
- }
-
- if (cda[CTA_TUPLE_REPLY-1]) {
- err = ctnetlink_parse_tuple(cda, &rtuple, CTA_TUPLE_REPLY);
- if (err < 0)
- return err;
- }
-
- write_lock_bh(&ip_conntrack_lock);
- if (cda[CTA_TUPLE_ORIG-1])
- h = __ip_conntrack_find(&otuple, NULL);
- else if (cda[CTA_TUPLE_REPLY-1])
- h = __ip_conntrack_find(&rtuple, NULL);
-
- if (h == NULL) {
- write_unlock_bh(&ip_conntrack_lock);
- err = -ENOENT;
- if (nlh->nlmsg_flags & NLM_F_CREATE)
- err = ctnetlink_create_conntrack(cda, &otuple, &rtuple);
- return err;
- }
- /* implicit 'else' */
-
- /* we only allow nat config for new conntracks */
- if (cda[CTA_NAT_SRC-1] || cda[CTA_NAT_DST-1]) {
- err = -EINVAL;
- goto out_unlock;
- }
-
- /* We manipulate the conntrack inside the global conntrack table lock,
- * so there's no need to increase the refcount */
- err = -EEXIST;
- if (!(nlh->nlmsg_flags & NLM_F_EXCL))
- err = ctnetlink_change_conntrack(tuplehash_to_ctrack(h), cda);
-
-out_unlock:
- write_unlock_bh(&ip_conntrack_lock);
- return err;
-}
-
-/***********************************************************************
- * EXPECT
- ***********************************************************************/
-
-static inline int
-ctnetlink_exp_dump_tuple(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple,
- enum ctattr_expect type)
-{
- struct nfattr *nest_parms = NFA_NEST(skb, type);
-
- if (ctnetlink_dump_tuples(skb, tuple) < 0)
- goto nfattr_failure;
-
- NFA_NEST_END(skb, nest_parms);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_exp_dump_mask(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *mask)
-{
- int ret;
- struct ip_conntrack_protocol *proto;
- struct nfattr *nest_parms = NFA_NEST(skb, CTA_EXPECT_MASK);
-
- ret = ctnetlink_dump_tuples_ip(skb, mask);
- if (unlikely(ret < 0))
- goto nfattr_failure;
-
- proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
- ret = ctnetlink_dump_tuples_proto(skb, mask, proto);
- ip_conntrack_proto_put(proto);
- if (unlikely(ret < 0))
- goto nfattr_failure;
-
- NFA_NEST_END(skb, nest_parms);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static inline int
-ctnetlink_exp_dump_expect(struct sk_buff *skb,
- const struct ip_conntrack_expect *exp)
-{
- struct ip_conntrack *master = exp->master;
- __be32 timeout = htonl((exp->timeout.expires - jiffies) / HZ);
- __be32 id = htonl(exp->id);
-
- if (ctnetlink_exp_dump_tuple(skb, &exp->tuple, CTA_EXPECT_TUPLE) < 0)
- goto nfattr_failure;
- if (ctnetlink_exp_dump_mask(skb, &exp->tuple, &exp->mask) < 0)
- goto nfattr_failure;
- if (ctnetlink_exp_dump_tuple(skb,
- &master->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
- CTA_EXPECT_MASTER) < 0)
- goto nfattr_failure;
-
- NFA_PUT(skb, CTA_EXPECT_TIMEOUT, sizeof(__be32), &timeout);
- NFA_PUT(skb, CTA_EXPECT_ID, sizeof(__be32), &id);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static int
-ctnetlink_exp_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
- int event,
- int nowait,
- const struct ip_conntrack_expect *exp)
-{
- struct nlmsghdr *nlh;
- struct nfgenmsg *nfmsg;
- unsigned char *b;
-
- b = skb->tail;
-
- event |= NFNL_SUBSYS_CTNETLINK_EXP << 8;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(struct nfgenmsg));
- nfmsg = NLMSG_DATA(nlh);
-
- nlh->nlmsg_flags = (nowait && pid) ? NLM_F_MULTI : 0;
- nfmsg->nfgen_family = AF_INET;
- nfmsg->version = NFNETLINK_V0;
- nfmsg->res_id = 0;
-
- if (ctnetlink_exp_dump_expect(skb, exp) < 0)
- goto nfattr_failure;
-
- nlh->nlmsg_len = skb->tail - b;
- return skb->len;
-
-nlmsg_failure:
-nfattr_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-}
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-static int ctnetlink_expect_event(struct notifier_block *this,
- unsigned long events, void *ptr)
-{
- struct nlmsghdr *nlh;
- struct nfgenmsg *nfmsg;
- struct ip_conntrack_expect *exp = (struct ip_conntrack_expect *)ptr;
- struct sk_buff *skb;
- unsigned int type;
- unsigned char *b;
- int flags = 0;
-
- if (events & IPEXP_NEW) {
- type = IPCTNL_MSG_EXP_NEW;
- flags = NLM_F_CREATE|NLM_F_EXCL;
- } else
- return NOTIFY_DONE;
-
- if (!nfnetlink_has_listeners(NFNLGRP_CONNTRACK_EXP_NEW))
- return NOTIFY_DONE;
-
- skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
- if (!skb)
- return NOTIFY_DONE;
-
- b = skb->tail;
-
- type |= NFNL_SUBSYS_CTNETLINK_EXP << 8;
- nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(struct nfgenmsg));
- nfmsg = NLMSG_DATA(nlh);
-
- nlh->nlmsg_flags = flags;
- nfmsg->nfgen_family = AF_INET;
- nfmsg->version = NFNETLINK_V0;
- nfmsg->res_id = 0;
-
- if (ctnetlink_exp_dump_expect(skb, exp) < 0)
- goto nfattr_failure;
-
- nlh->nlmsg_len = skb->tail - b;
- nfnetlink_send(skb, 0, NFNLGRP_CONNTRACK_EXP_NEW, 0);
- return NOTIFY_DONE;
-
-nlmsg_failure:
-nfattr_failure:
- kfree_skb(skb);
- return NOTIFY_DONE;
-}
-#endif
-
-static int
-ctnetlink_exp_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
-{
- struct ip_conntrack_expect *exp = NULL;
- struct list_head *i;
- u_int32_t *id = (u_int32_t *) &cb->args[0];
-
- read_lock_bh(&ip_conntrack_lock);
- list_for_each_prev(i, &ip_conntrack_expect_list) {
- exp = (struct ip_conntrack_expect *) i;
- if (exp->id <= *id)
- continue;
- if (ctnetlink_exp_fill_info(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- IPCTNL_MSG_EXP_NEW,
- 1, exp) < 0)
- goto out;
- *id = exp->id;
- }
-out:
- read_unlock_bh(&ip_conntrack_lock);
-
- return skb->len;
-}
-
-static const size_t cta_min_exp[CTA_EXPECT_MAX] = {
- [CTA_EXPECT_TIMEOUT-1] = sizeof(__be32),
- [CTA_EXPECT_ID-1] = sizeof(__be32)
-};
-
-static int
-ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
-{
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack_expect *exp;
- struct sk_buff *skb2;
- int err = 0;
-
- if (nfattr_bad_size(cda, CTA_EXPECT_MAX, cta_min_exp))
- return -EINVAL;
-
- if (nlh->nlmsg_flags & NLM_F_DUMP) {
- struct nfgenmsg *msg = NLMSG_DATA(nlh);
- u32 rlen;
-
- if (msg->nfgen_family != AF_INET)
- return -EAFNOSUPPORT;
-
- if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_exp_dump_table,
- ctnetlink_done)) != 0)
- return -EINVAL;
- rlen = NLMSG_ALIGN(nlh->nlmsg_len);
- if (rlen > skb->len)
- rlen = skb->len;
- skb_pull(skb, rlen);
- return 0;
- }
-
- if (cda[CTA_EXPECT_MASTER-1])
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_EXPECT_MASTER);
- else
- return -EINVAL;
-
- if (err < 0)
- return err;
-
- exp = ip_conntrack_expect_find_get(&tuple);
- if (!exp)
- return -ENOENT;
-
- if (cda[CTA_EXPECT_ID-1]) {
- __be32 id = *(__be32 *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
- if (exp->id != ntohl(id)) {
- ip_conntrack_expect_put(exp);
- return -ENOENT;
- }
- }
-
- err = -ENOMEM;
- skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!skb2)
- goto out;
-
- err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid,
- nlh->nlmsg_seq, IPCTNL_MSG_EXP_NEW,
- 1, exp);
- if (err <= 0)
- goto free;
-
- ip_conntrack_expect_put(exp);
-
- return netlink_unicast(ctnl, skb2, NETLINK_CB(skb).pid, MSG_DONTWAIT);
-
-free:
- kfree_skb(skb2);
-out:
- ip_conntrack_expect_put(exp);
- return err;
-}
-
-static int
-ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
-{
- struct ip_conntrack_expect *exp, *tmp;
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack_helper *h;
- int err;
-
- if (nfattr_bad_size(cda, CTA_EXPECT_MAX, cta_min_exp))
- return -EINVAL;
-
- if (cda[CTA_EXPECT_TUPLE-1]) {
- /* delete a single expect by tuple */
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_EXPECT_TUPLE);
- if (err < 0)
- return err;
-
- /* bump usage count to 2 */
- exp = ip_conntrack_expect_find_get(&tuple);
- if (!exp)
- return -ENOENT;
-
- if (cda[CTA_EXPECT_ID-1]) {
- __be32 id =
- *(__be32 *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
- if (exp->id != ntohl(id)) {
- ip_conntrack_expect_put(exp);
- return -ENOENT;
- }
- }
-
- /* after list removal, usage count == 1 */
- ip_conntrack_unexpect_related(exp);
- /* have to put what we 'get' above.
- * after this line usage count == 0 */
- ip_conntrack_expect_put(exp);
- } else if (cda[CTA_EXPECT_HELP_NAME-1]) {
- char *name = NFA_DATA(cda[CTA_EXPECT_HELP_NAME-1]);
-
- /* delete all expectations for this helper */
- write_lock_bh(&ip_conntrack_lock);
- h = __ip_conntrack_helper_find_byname(name);
- if (!h) {
- write_unlock_bh(&ip_conntrack_lock);
- return -EINVAL;
- }
- list_for_each_entry_safe(exp, tmp, &ip_conntrack_expect_list,
- list) {
- if (exp->master->helper == h
- && del_timer(&exp->timeout)) {
- ip_ct_unlink_expect(exp);
- ip_conntrack_expect_put(exp);
- }
- }
- write_unlock_bh(&ip_conntrack_lock);
- } else {
- /* This basically means we have to flush everything*/
- write_lock_bh(&ip_conntrack_lock);
- list_for_each_entry_safe(exp, tmp, &ip_conntrack_expect_list,
- list) {
- if (del_timer(&exp->timeout)) {
- ip_ct_unlink_expect(exp);
- ip_conntrack_expect_put(exp);
- }
- }
- write_unlock_bh(&ip_conntrack_lock);
- }
-
- return 0;
-}
-static int
-ctnetlink_change_expect(struct ip_conntrack_expect *x, struct nfattr *cda[])
-{
- return -EOPNOTSUPP;
-}
-
-static int
-ctnetlink_create_expect(struct nfattr *cda[])
-{
- struct ip_conntrack_tuple tuple, mask, master_tuple;
- struct ip_conntrack_tuple_hash *h = NULL;
- struct ip_conntrack_expect *exp;
- struct ip_conntrack *ct;
- int err = 0;
-
- /* caller guarantees that those three CTA_EXPECT_* exist */
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_EXPECT_TUPLE);
- if (err < 0)
- return err;
- err = ctnetlink_parse_tuple(cda, &mask, CTA_EXPECT_MASK);
- if (err < 0)
- return err;
- err = ctnetlink_parse_tuple(cda, &master_tuple, CTA_EXPECT_MASTER);
- if (err < 0)
- return err;
-
- /* Look for master conntrack of this expectation */
- h = ip_conntrack_find_get(&master_tuple, NULL);
- if (!h)
- return -ENOENT;
- ct = tuplehash_to_ctrack(h);
-
- if (!ct->helper) {
- /* such conntrack hasn't got any helper, abort */
- err = -EINVAL;
- goto out;
- }
-
- exp = ip_conntrack_expect_alloc(ct);
- if (!exp) {
- err = -ENOMEM;
- goto out;
- }
-
- exp->expectfn = NULL;
- exp->flags = 0;
- exp->master = ct;
- memcpy(&exp->tuple, &tuple, sizeof(struct ip_conntrack_tuple));
- memcpy(&exp->mask, &mask, sizeof(struct ip_conntrack_tuple));
-
- err = ip_conntrack_expect_related(exp);
- ip_conntrack_expect_put(exp);
-
-out:
- ip_conntrack_put(tuplehash_to_ctrack(h));
- return err;
-}
-
-static int
-ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
-{
- struct ip_conntrack_tuple tuple;
- struct ip_conntrack_expect *exp;
- int err = 0;
-
- if (nfattr_bad_size(cda, CTA_EXPECT_MAX, cta_min_exp))
- return -EINVAL;
-
- if (!cda[CTA_EXPECT_TUPLE-1]
- || !cda[CTA_EXPECT_MASK-1]
- || !cda[CTA_EXPECT_MASTER-1])
- return -EINVAL;
-
- err = ctnetlink_parse_tuple(cda, &tuple, CTA_EXPECT_TUPLE);
- if (err < 0)
- return err;
-
- write_lock_bh(&ip_conntrack_lock);
- exp = __ip_conntrack_expect_find(&tuple);
-
- if (!exp) {
- write_unlock_bh(&ip_conntrack_lock);
- err = -ENOENT;
- if (nlh->nlmsg_flags & NLM_F_CREATE)
- err = ctnetlink_create_expect(cda);
- return err;
- }
-
- err = -EEXIST;
- if (!(nlh->nlmsg_flags & NLM_F_EXCL))
- err = ctnetlink_change_expect(exp, cda);
- write_unlock_bh(&ip_conntrack_lock);
-
- return err;
-}
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-static struct notifier_block ctnl_notifier = {
- .notifier_call = ctnetlink_conntrack_event,
-};
-
-static struct notifier_block ctnl_notifier_exp = {
- .notifier_call = ctnetlink_expect_event,
-};
-#endif
-
-static struct nfnl_callback ctnl_cb[IPCTNL_MSG_MAX] = {
- [IPCTNL_MSG_CT_NEW] = { .call = ctnetlink_new_conntrack,
- .attr_count = CTA_MAX, },
- [IPCTNL_MSG_CT_GET] = { .call = ctnetlink_get_conntrack,
- .attr_count = CTA_MAX, },
- [IPCTNL_MSG_CT_DELETE] = { .call = ctnetlink_del_conntrack,
- .attr_count = CTA_MAX, },
- [IPCTNL_MSG_CT_GET_CTRZERO] = { .call = ctnetlink_get_conntrack,
- .attr_count = CTA_MAX, },
-};
-
-static struct nfnl_callback ctnl_exp_cb[IPCTNL_MSG_EXP_MAX] = {
- [IPCTNL_MSG_EXP_GET] = { .call = ctnetlink_get_expect,
- .attr_count = CTA_EXPECT_MAX, },
- [IPCTNL_MSG_EXP_NEW] = { .call = ctnetlink_new_expect,
- .attr_count = CTA_EXPECT_MAX, },
- [IPCTNL_MSG_EXP_DELETE] = { .call = ctnetlink_del_expect,
- .attr_count = CTA_EXPECT_MAX, },
-};
-
-static struct nfnetlink_subsystem ctnl_subsys = {
- .name = "conntrack",
- .subsys_id = NFNL_SUBSYS_CTNETLINK,
- .cb_count = IPCTNL_MSG_MAX,
- .cb = ctnl_cb,
-};
-
-static struct nfnetlink_subsystem ctnl_exp_subsys = {
- .name = "conntrack_expect",
- .subsys_id = NFNL_SUBSYS_CTNETLINK_EXP,
- .cb_count = IPCTNL_MSG_EXP_MAX,
- .cb = ctnl_exp_cb,
-};
-
-MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_CTNETLINK);
-MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_CTNETLINK_EXP);
-
-static int __init ctnetlink_init(void)
-{
- int ret;
-
- printk("ctnetlink v%s: registering with nfnetlink.\n", version);
- ret = nfnetlink_subsys_register(&ctnl_subsys);
- if (ret < 0) {
- printk("ctnetlink_init: cannot register with nfnetlink.\n");
- goto err_out;
- }
-
- ret = nfnetlink_subsys_register(&ctnl_exp_subsys);
- if (ret < 0) {
- printk("ctnetlink_init: cannot register exp with nfnetlink.\n");
- goto err_unreg_subsys;
- }
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
- ret = ip_conntrack_register_notifier(&ctnl_notifier);
- if (ret < 0) {
- printk("ctnetlink_init: cannot register notifier.\n");
- goto err_unreg_exp_subsys;
- }
-
- ret = ip_conntrack_expect_register_notifier(&ctnl_notifier_exp);
- if (ret < 0) {
- printk("ctnetlink_init: cannot expect register notifier.\n");
- goto err_unreg_notifier;
- }
-#endif
-
- return 0;
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-err_unreg_notifier:
- ip_conntrack_unregister_notifier(&ctnl_notifier);
-err_unreg_exp_subsys:
- nfnetlink_subsys_unregister(&ctnl_exp_subsys);
-#endif
-err_unreg_subsys:
- nfnetlink_subsys_unregister(&ctnl_subsys);
-err_out:
- return ret;
-}
-
-static void __exit ctnetlink_exit(void)
-{
- printk("ctnetlink: unregistering from nfnetlink.\n");
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
- ip_conntrack_expect_unregister_notifier(&ctnl_notifier_exp);
- ip_conntrack_unregister_notifier(&ctnl_notifier);
-#endif
-
- nfnetlink_subsys_unregister(&ctnl_exp_subsys);
- nfnetlink_subsys_unregister(&ctnl_subsys);
- return;
-}
-
-module_init(ctnetlink_init);
-module_exit(ctnetlink_exit);
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-
-unsigned int ip_ct_generic_timeout __read_mostly = 600*HZ;
-
-static int generic_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- tuple->src.u.all = 0;
- tuple->dst.u.all = 0;
-
- return 1;
-}
-
-static int generic_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- tuple->src.u.all = 0;
- tuple->dst.u.all = 0;
-
- return 1;
-}
-
-/* Print out the per-protocol part of the tuple. */
-static int generic_print_tuple(struct seq_file *s,
- const struct ip_conntrack_tuple *tuple)
-{
- return 0;
-}
-
-/* Print out the private part of the conntrack. */
-static int generic_print_conntrack(struct seq_file *s,
- const struct ip_conntrack *state)
-{
- return 0;
-}
-
-/* Returns verdict for packet, or -1 for invalid. */
-static int packet(struct ip_conntrack *conntrack,
- const struct sk_buff *skb,
- enum ip_conntrack_info ctinfo)
-{
- ip_ct_refresh_acct(conntrack, ctinfo, skb, ip_ct_generic_timeout);
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int new(struct ip_conntrack *conntrack, const struct sk_buff *skb)
-{
- return 1;
-}
-
-struct ip_conntrack_protocol ip_conntrack_generic_protocol =
-{
- .proto = 0,
- .name = "unknown",
- .pkt_to_tuple = generic_pkt_to_tuple,
- .invert_tuple = generic_invert_tuple,
- .print_tuple = generic_print_tuple,
- .print_conntrack = generic_print_conntrack,
- .packet = packet,
- .new = new,
-};
+++ /dev/null
-/*
- * ip_conntrack_proto_gre.c - Version 3.0
- *
- * Connection tracking protocol helper module for GRE.
- *
- * GRE is a generic encapsulation protocol, which is generally not very
- * suited for NAT, as it has no protocol-specific part as port numbers.
- *
- * It has an optional key field, which may help us distinguishing two
- * connections between the same two hosts.
- *
- * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784
- *
- * PPTP is built on top of a modified version of GRE, and has a mandatory
- * field called "CallID", which serves us for the same purpose as the key
- * field in plain GRE.
- *
- * Documentation about PPTP can be found in RFC 2637
- *
- * (C) 2000-2005 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/in.h>
-#include <linux/list.h>
-#include <linux/seq_file.h>
-#include <linux/interrupt.h>
-
-static DEFINE_RWLOCK(ip_ct_gre_lock);
-
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("netfilter connection tracking protocol helper for GRE");
-
-/* shamelessly stolen from ip_conntrack_proto_udp.c */
-#define GRE_TIMEOUT (30*HZ)
-#define GRE_STREAM_TIMEOUT (180*HZ)
-
-#if 0
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s: " format, __FILE__, __FUNCTION__, ## args)
-#define DUMP_TUPLE_GRE(x) printk("%u.%u.%u.%u:0x%x -> %u.%u.%u.%u:0x%x\n", \
- NIPQUAD((x)->src.ip), ntohs((x)->src.u.gre.key), \
- NIPQUAD((x)->dst.ip), ntohs((x)->dst.u.gre.key))
-#else
-#define DEBUGP(x, args...)
-#define DUMP_TUPLE_GRE(x)
-#endif
-
-/* GRE KEYMAP HANDLING FUNCTIONS */
-static LIST_HEAD(gre_keymap_list);
-
-static inline int gre_key_cmpfn(const struct ip_ct_gre_keymap *km,
- const struct ip_conntrack_tuple *t)
-{
- return ((km->tuple.src.ip == t->src.ip) &&
- (km->tuple.dst.ip == t->dst.ip) &&
- (km->tuple.dst.protonum == t->dst.protonum) &&
- (km->tuple.dst.u.all == t->dst.u.all));
-}
-
-/* look up the source key for a given tuple */
-static __be16 gre_keymap_lookup(struct ip_conntrack_tuple *t)
-{
- struct ip_ct_gre_keymap *km;
- __be16 key = 0;
-
- read_lock_bh(&ip_ct_gre_lock);
- list_for_each_entry(km, &gre_keymap_list, list) {
- if (gre_key_cmpfn(km, t)) {
- key = km->tuple.src.u.gre.key;
- break;
- }
- }
- read_unlock_bh(&ip_ct_gre_lock);
-
- DEBUGP("lookup src key 0x%x up key for ", key);
- DUMP_TUPLE_GRE(t);
-
- return key;
-}
-
-/* add a single keymap entry, associate with specified master ct */
-int
-ip_ct_gre_keymap_add(struct ip_conntrack *ct,
- struct ip_conntrack_tuple *t, int reply)
-{
- struct ip_ct_gre_keymap **exist_km, *km;
-
- if (!ct->helper || strcmp(ct->helper->name, "pptp")) {
- DEBUGP("refusing to add GRE keymap to non-pptp session\n");
- return -1;
- }
-
- if (!reply)
- exist_km = &ct->help.ct_pptp_info.keymap_orig;
- else
- exist_km = &ct->help.ct_pptp_info.keymap_reply;
-
- if (*exist_km) {
- /* check whether it's a retransmission */
- list_for_each_entry(km, &gre_keymap_list, list) {
- if (gre_key_cmpfn(km, t) && km == *exist_km)
- return 0;
- }
- DEBUGP("trying to override keymap_%s for ct %p\n",
- reply? "reply":"orig", ct);
- return -EEXIST;
- }
-
- km = kmalloc(sizeof(*km), GFP_ATOMIC);
- if (!km)
- return -ENOMEM;
-
- memcpy(&km->tuple, t, sizeof(*t));
- *exist_km = km;
-
- DEBUGP("adding new entry %p: ", km);
- DUMP_TUPLE_GRE(&km->tuple);
-
- write_lock_bh(&ip_ct_gre_lock);
- list_add_tail(&km->list, &gre_keymap_list);
- write_unlock_bh(&ip_ct_gre_lock);
-
- return 0;
-}
-
-/* destroy the keymap entries associated with specified master ct */
-void ip_ct_gre_keymap_destroy(struct ip_conntrack *ct)
-{
- DEBUGP("entering for ct %p\n", ct);
-
- if (!ct->helper || strcmp(ct->helper->name, "pptp")) {
- DEBUGP("refusing to destroy GRE keymap to non-pptp session\n");
- return;
- }
-
- write_lock_bh(&ip_ct_gre_lock);
- if (ct->help.ct_pptp_info.keymap_orig) {
- DEBUGP("removing %p from list\n",
- ct->help.ct_pptp_info.keymap_orig);
- list_del(&ct->help.ct_pptp_info.keymap_orig->list);
- kfree(ct->help.ct_pptp_info.keymap_orig);
- ct->help.ct_pptp_info.keymap_orig = NULL;
- }
- if (ct->help.ct_pptp_info.keymap_reply) {
- DEBUGP("removing %p from list\n",
- ct->help.ct_pptp_info.keymap_reply);
- list_del(&ct->help.ct_pptp_info.keymap_reply->list);
- kfree(ct->help.ct_pptp_info.keymap_reply);
- ct->help.ct_pptp_info.keymap_reply = NULL;
- }
- write_unlock_bh(&ip_ct_gre_lock);
-}
-
-
-/* PUBLIC CONNTRACK PROTO HELPER FUNCTIONS */
-
-/* invert gre part of tuple */
-static int gre_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- tuple->dst.u.gre.key = orig->src.u.gre.key;
- tuple->src.u.gre.key = orig->dst.u.gre.key;
-
- return 1;
-}
-
-/* gre hdr info to tuple */
-static int gre_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- struct gre_hdr_pptp _pgrehdr, *pgrehdr;
- __be16 srckey;
- struct gre_hdr _grehdr, *grehdr;
-
- /* first only delinearize old RFC1701 GRE header */
- grehdr = skb_header_pointer(skb, dataoff, sizeof(_grehdr), &_grehdr);
- if (!grehdr || grehdr->version != GRE_VERSION_PPTP) {
- /* try to behave like "ip_conntrack_proto_generic" */
- tuple->src.u.all = 0;
- tuple->dst.u.all = 0;
- return 1;
- }
-
- /* PPTP header is variable length, only need up to the call_id field */
- pgrehdr = skb_header_pointer(skb, dataoff, 8, &_pgrehdr);
- if (!pgrehdr)
- return 1;
-
- if (ntohs(grehdr->protocol) != GRE_PROTOCOL_PPTP) {
- DEBUGP("GRE_VERSION_PPTP but unknown proto\n");
- return 0;
- }
-
- tuple->dst.u.gre.key = pgrehdr->call_id;
- srckey = gre_keymap_lookup(tuple);
- tuple->src.u.gre.key = srckey;
-
- return 1;
-}
-
-/* print gre part of tuple */
-static int gre_print_tuple(struct seq_file *s,
- const struct ip_conntrack_tuple *tuple)
-{
- return seq_printf(s, "srckey=0x%x dstkey=0x%x ",
- ntohs(tuple->src.u.gre.key),
- ntohs(tuple->dst.u.gre.key));
-}
-
-/* print private data for conntrack */
-static int gre_print_conntrack(struct seq_file *s,
- const struct ip_conntrack *ct)
-{
- return seq_printf(s, "timeout=%u, stream_timeout=%u ",
- (ct->proto.gre.timeout / HZ),
- (ct->proto.gre.stream_timeout / HZ));
-}
-
-/* Returns verdict for packet, and may modify conntrack */
-static int gre_packet(struct ip_conntrack *ct,
- const struct sk_buff *skb,
- enum ip_conntrack_info conntrackinfo)
-{
- /* If we've seen traffic both ways, this is a GRE connection.
- * Extend timeout. */
- if (ct->status & IPS_SEEN_REPLY) {
- ip_ct_refresh_acct(ct, conntrackinfo, skb,
- ct->proto.gre.stream_timeout);
- /* Also, more likely to be important, and not a probe. */
- set_bit(IPS_ASSURED_BIT, &ct->status);
- ip_conntrack_event_cache(IPCT_STATUS, skb);
- } else
- ip_ct_refresh_acct(ct, conntrackinfo, skb,
- ct->proto.gre.timeout);
-
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int gre_new(struct ip_conntrack *ct,
- const struct sk_buff *skb)
-{
- DEBUGP(": ");
- DUMP_TUPLE_GRE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-
- /* initialize to sane value. Ideally a conntrack helper
- * (e.g. in case of pptp) is increasing them */
- ct->proto.gre.stream_timeout = GRE_STREAM_TIMEOUT;
- ct->proto.gre.timeout = GRE_TIMEOUT;
-
- return 1;
-}
-
-/* Called when a conntrack entry has already been removed from the hashes
- * and is about to be deleted from memory */
-static void gre_destroy(struct ip_conntrack *ct)
-{
- struct ip_conntrack *master = ct->master;
- DEBUGP(" entering\n");
-
- if (!master)
- DEBUGP("no master !?!\n");
- else
- ip_ct_gre_keymap_destroy(master);
-}
-
-/* protocol helper struct */
-static struct ip_conntrack_protocol gre = {
- .proto = IPPROTO_GRE,
- .name = "gre",
- .pkt_to_tuple = gre_pkt_to_tuple,
- .invert_tuple = gre_invert_tuple,
- .print_tuple = gre_print_tuple,
- .print_conntrack = gre_print_conntrack,
- .packet = gre_packet,
- .new = gre_new,
- .destroy = gre_destroy,
- .me = THIS_MODULE,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .tuple_to_nfattr = ip_ct_port_tuple_to_nfattr,
- .nfattr_to_tuple = ip_ct_port_nfattr_to_tuple,
-#endif
-};
-
-/* ip_conntrack_proto_gre initialization */
-int __init ip_ct_proto_gre_init(void)
-{
- return ip_conntrack_protocol_register(&gre);
-}
-
-/* This cannot be __exit, as it is invoked from ip_conntrack_helper_pptp.c's
- * init() code on errors.
- */
-void ip_ct_proto_gre_fini(void)
-{
- struct list_head *pos, *n;
-
- /* delete all keymap entries */
- write_lock_bh(&ip_ct_gre_lock);
- list_for_each_safe(pos, n, &gre_keymap_list) {
- DEBUGP("deleting keymap %p at module unload time\n", pos);
- list_del(pos);
- kfree(pos);
- }
- write_unlock_bh(&ip_ct_gre_lock);
-
- ip_conntrack_protocol_unregister(&gre);
-}
-
-EXPORT_SYMBOL(ip_ct_gre_keymap_add);
-EXPORT_SYMBOL(ip_ct_gre_keymap_destroy);
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/in.h>
-#include <linux/icmp.h>
-#include <linux/seq_file.h>
-#include <linux/skbuff.h>
-#include <net/ip.h>
-#include <net/checksum.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-
-unsigned int ip_ct_icmp_timeout __read_mostly = 30*HZ;
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-static int icmp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- struct icmphdr _hdr, *hp;
-
- hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
- if (hp == NULL)
- return 0;
-
- tuple->dst.u.icmp.type = hp->type;
- tuple->src.u.icmp.id = hp->un.echo.id;
- tuple->dst.u.icmp.code = hp->code;
-
- return 1;
-}
-
-/* Add 1; spaces filled with 0. */
-static const u_int8_t invmap[] = {
- [ICMP_ECHO] = ICMP_ECHOREPLY + 1,
- [ICMP_ECHOREPLY] = ICMP_ECHO + 1,
- [ICMP_TIMESTAMP] = ICMP_TIMESTAMPREPLY + 1,
- [ICMP_TIMESTAMPREPLY] = ICMP_TIMESTAMP + 1,
- [ICMP_INFO_REQUEST] = ICMP_INFO_REPLY + 1,
- [ICMP_INFO_REPLY] = ICMP_INFO_REQUEST + 1,
- [ICMP_ADDRESS] = ICMP_ADDRESSREPLY + 1,
- [ICMP_ADDRESSREPLY] = ICMP_ADDRESS + 1
-};
-
-static int icmp_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- if (orig->dst.u.icmp.type >= sizeof(invmap)
- || !invmap[orig->dst.u.icmp.type])
- return 0;
-
- tuple->src.u.icmp.id = orig->src.u.icmp.id;
- tuple->dst.u.icmp.type = invmap[orig->dst.u.icmp.type] - 1;
- tuple->dst.u.icmp.code = orig->dst.u.icmp.code;
- return 1;
-}
-
-/* Print out the per-protocol part of the tuple. */
-static int icmp_print_tuple(struct seq_file *s,
- const struct ip_conntrack_tuple *tuple)
-{
- return seq_printf(s, "type=%u code=%u id=%u ",
- tuple->dst.u.icmp.type,
- tuple->dst.u.icmp.code,
- ntohs(tuple->src.u.icmp.id));
-}
-
-/* Print out the private part of the conntrack. */
-static int icmp_print_conntrack(struct seq_file *s,
- const struct ip_conntrack *conntrack)
-{
- return 0;
-}
-
-/* Returns verdict for packet, or -1 for invalid. */
-static int icmp_packet(struct ip_conntrack *ct,
- const struct sk_buff *skb,
- enum ip_conntrack_info ctinfo)
-{
- /* Try to delete connection immediately after all replies:
- won't actually vanish as we still have skb, and del_timer
- means this will only run once even if count hits zero twice
- (theoretically possible with SMP) */
- if (CTINFO2DIR(ctinfo) == IP_CT_DIR_REPLY) {
- if (atomic_dec_and_test(&ct->proto.icmp.count)
- && del_timer(&ct->timeout))
- ct->timeout.function((unsigned long)ct);
- } else {
- atomic_inc(&ct->proto.icmp.count);
- ip_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, skb);
- ip_ct_refresh_acct(ct, ctinfo, skb, ip_ct_icmp_timeout);
- }
-
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int icmp_new(struct ip_conntrack *conntrack,
- const struct sk_buff *skb)
-{
- static const u_int8_t valid_new[] = {
- [ICMP_ECHO] = 1,
- [ICMP_TIMESTAMP] = 1,
- [ICMP_INFO_REQUEST] = 1,
- [ICMP_ADDRESS] = 1
- };
-
- if (conntrack->tuplehash[0].tuple.dst.u.icmp.type >= sizeof(valid_new)
- || !valid_new[conntrack->tuplehash[0].tuple.dst.u.icmp.type]) {
- /* Can't create a new ICMP `conn' with this. */
- DEBUGP("icmp: can't create new conn with type %u\n",
- conntrack->tuplehash[0].tuple.dst.u.icmp.type);
- DUMP_TUPLE(&conntrack->tuplehash[0].tuple);
- return 0;
- }
- atomic_set(&conntrack->proto.icmp.count, 0);
- return 1;
-}
-
-static int
-icmp_error_message(struct sk_buff *skb,
- enum ip_conntrack_info *ctinfo,
- unsigned int hooknum)
-{
- struct ip_conntrack_tuple innertuple, origtuple;
- struct {
- struct icmphdr icmp;
- struct iphdr ip;
- } _in, *inside;
- struct ip_conntrack_protocol *innerproto;
- struct ip_conntrack_tuple_hash *h;
- int dataoff;
-
- IP_NF_ASSERT(skb->nfct == NULL);
-
- /* Not enough header? */
- inside = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_in), &_in);
- if (inside == NULL)
- return -NF_ACCEPT;
-
- /* Ignore ICMP's containing fragments (shouldn't happen) */
- if (inside->ip.frag_off & htons(IP_OFFSET)) {
- DEBUGP("icmp_error_track: fragment of proto %u\n",
- inside->ip.protocol);
- return -NF_ACCEPT;
- }
-
- innerproto = ip_conntrack_proto_find_get(inside->ip.protocol);
- dataoff = skb->nh.iph->ihl*4 + sizeof(inside->icmp) + inside->ip.ihl*4;
- /* Are they talking about one of our connections? */
- if (!ip_ct_get_tuple(&inside->ip, skb, dataoff, &origtuple, innerproto)) {
- DEBUGP("icmp_error: ! get_tuple p=%u", inside->ip.protocol);
- ip_conntrack_proto_put(innerproto);
- return -NF_ACCEPT;
- }
-
- /* Ordinarily, we'd expect the inverted tupleproto, but it's
- been preserved inside the ICMP. */
- if (!ip_ct_invert_tuple(&innertuple, &origtuple, innerproto)) {
- DEBUGP("icmp_error_track: Can't invert tuple\n");
- ip_conntrack_proto_put(innerproto);
- return -NF_ACCEPT;
- }
- ip_conntrack_proto_put(innerproto);
-
- *ctinfo = IP_CT_RELATED;
-
- h = ip_conntrack_find_get(&innertuple, NULL);
- if (!h) {
- /* Locally generated ICMPs will match inverted if they
- haven't been SNAT'ed yet */
- /* FIXME: NAT code has to handle half-done double NAT --RR */
- if (hooknum == NF_IP_LOCAL_OUT)
- h = ip_conntrack_find_get(&origtuple, NULL);
-
- if (!h) {
- DEBUGP("icmp_error_track: no match\n");
- return -NF_ACCEPT;
- }
- /* Reverse direction from that found */
- if (DIRECTION(h) != IP_CT_DIR_REPLY)
- *ctinfo += IP_CT_IS_REPLY;
- } else {
- if (DIRECTION(h) == IP_CT_DIR_REPLY)
- *ctinfo += IP_CT_IS_REPLY;
- }
-
- /* Update skb to refer to this connection */
- skb->nfct = &tuplehash_to_ctrack(h)->ct_general;
- skb->nfctinfo = *ctinfo;
- return -NF_ACCEPT;
-}
-
-/* Small and modified version of icmp_rcv */
-static int
-icmp_error(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
- unsigned int hooknum)
-{
- struct icmphdr _ih, *icmph;
-
- /* Not enough header? */
- icmph = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_ih), &_ih);
- if (icmph == NULL) {
- if (LOG_INVALID(IPPROTO_ICMP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_icmp: short packet ");
- return -NF_ACCEPT;
- }
-
- /* See ip_conntrack_proto_tcp.c */
- if (ip_conntrack_checksum && hooknum == NF_IP_PRE_ROUTING &&
- nf_ip_checksum(skb, hooknum, skb->nh.iph->ihl * 4, 0)) {
- if (LOG_INVALID(IPPROTO_ICMP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_icmp: bad ICMP checksum ");
- return -NF_ACCEPT;
- }
-
- /*
- * 18 is the highest 'known' ICMP type. Anything else is a mystery
- *
- * RFC 1122: 3.2.2 Unknown ICMP messages types MUST be silently
- * discarded.
- */
- if (icmph->type > NR_ICMP_TYPES) {
- if (LOG_INVALID(IPPROTO_ICMP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_icmp: invalid ICMP type ");
- return -NF_ACCEPT;
- }
-
- /* Need to track icmp error message? */
- if (icmph->type != ICMP_DEST_UNREACH
- && icmph->type != ICMP_SOURCE_QUENCH
- && icmph->type != ICMP_TIME_EXCEEDED
- && icmph->type != ICMP_PARAMETERPROB
- && icmph->type != ICMP_REDIRECT)
- return NF_ACCEPT;
-
- return icmp_error_message(skb, ctinfo, hooknum);
-}
-
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
-static int icmp_tuple_to_nfattr(struct sk_buff *skb,
- const struct ip_conntrack_tuple *t)
-{
- NFA_PUT(skb, CTA_PROTO_ICMP_ID, sizeof(__be16),
- &t->src.u.icmp.id);
- NFA_PUT(skb, CTA_PROTO_ICMP_TYPE, sizeof(u_int8_t),
- &t->dst.u.icmp.type);
- NFA_PUT(skb, CTA_PROTO_ICMP_CODE, sizeof(u_int8_t),
- &t->dst.u.icmp.code);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-static int icmp_nfattr_to_tuple(struct nfattr *tb[],
- struct ip_conntrack_tuple *tuple)
-{
- if (!tb[CTA_PROTO_ICMP_TYPE-1]
- || !tb[CTA_PROTO_ICMP_CODE-1]
- || !tb[CTA_PROTO_ICMP_ID-1])
- return -EINVAL;
-
- tuple->dst.u.icmp.type =
- *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_TYPE-1]);
- tuple->dst.u.icmp.code =
- *(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_CODE-1]);
- tuple->src.u.icmp.id =
- *(__be16 *)NFA_DATA(tb[CTA_PROTO_ICMP_ID-1]);
-
- if (tuple->dst.u.icmp.type >= sizeof(invmap)
- || !invmap[tuple->dst.u.icmp.type])
- return -EINVAL;
-
- return 0;
-}
-#endif
-
-struct ip_conntrack_protocol ip_conntrack_protocol_icmp =
-{
- .proto = IPPROTO_ICMP,
- .name = "icmp",
- .pkt_to_tuple = icmp_pkt_to_tuple,
- .invert_tuple = icmp_invert_tuple,
- .print_tuple = icmp_print_tuple,
- .print_conntrack = icmp_print_conntrack,
- .packet = icmp_packet,
- .new = icmp_new,
- .error = icmp_error,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .tuple_to_nfattr = icmp_tuple_to_nfattr,
- .nfattr_to_tuple = icmp_nfattr_to_tuple,
-#endif
-};
+++ /dev/null
-/*
- * Connection tracking protocol helper module for SCTP.
- *
- * SCTP is defined in RFC 2960. References to various sections in this code
- * are to this RFC.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * Added support for proc manipulation of timeouts.
- */
-
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/netfilter.h>
-#include <linux/module.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/sctp.h>
-#include <linux/string.h>
-#include <linux/seq_file.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-
-#if 0
-#define DEBUGP(format, ...) printk(format, ## __VA_ARGS__)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/* Protects conntrack->proto.sctp */
-static DEFINE_RWLOCK(sctp_lock);
-
-/* FIXME: Examine ipfilter's timeouts and conntrack transitions more
- closely. They're more complex. --RR
-
- And so for me for SCTP :D -Kiran */
-
-static const char *sctp_conntrack_names[] = {
- "NONE",
- "CLOSED",
- "COOKIE_WAIT",
- "COOKIE_ECHOED",
- "ESTABLISHED",
- "SHUTDOWN_SENT",
- "SHUTDOWN_RECD",
- "SHUTDOWN_ACK_SENT",
-};
-
-#define SECS * HZ
-#define MINS * 60 SECS
-#define HOURS * 60 MINS
-#define DAYS * 24 HOURS
-
-static unsigned int ip_ct_sctp_timeout_closed __read_mostly = 10 SECS;
-static unsigned int ip_ct_sctp_timeout_cookie_wait __read_mostly = 3 SECS;
-static unsigned int ip_ct_sctp_timeout_cookie_echoed __read_mostly = 3 SECS;
-static unsigned int ip_ct_sctp_timeout_established __read_mostly = 5 DAYS;
-static unsigned int ip_ct_sctp_timeout_shutdown_sent __read_mostly = 300 SECS / 1000;
-static unsigned int ip_ct_sctp_timeout_shutdown_recd __read_mostly = 300 SECS / 1000;
-static unsigned int ip_ct_sctp_timeout_shutdown_ack_sent __read_mostly = 3 SECS;
-
-static const unsigned int * sctp_timeouts[]
-= { NULL, /* SCTP_CONNTRACK_NONE */
- &ip_ct_sctp_timeout_closed, /* SCTP_CONNTRACK_CLOSED */
- &ip_ct_sctp_timeout_cookie_wait, /* SCTP_CONNTRACK_COOKIE_WAIT */
- &ip_ct_sctp_timeout_cookie_echoed, /* SCTP_CONNTRACK_COOKIE_ECHOED */
- &ip_ct_sctp_timeout_established, /* SCTP_CONNTRACK_ESTABLISHED */
- &ip_ct_sctp_timeout_shutdown_sent, /* SCTP_CONNTRACK_SHUTDOWN_SENT */
- &ip_ct_sctp_timeout_shutdown_recd, /* SCTP_CONNTRACK_SHUTDOWN_RECD */
- &ip_ct_sctp_timeout_shutdown_ack_sent /* SCTP_CONNTRACK_SHUTDOWN_ACK_SENT */
- };
-
-#define sNO SCTP_CONNTRACK_NONE
-#define sCL SCTP_CONNTRACK_CLOSED
-#define sCW SCTP_CONNTRACK_COOKIE_WAIT
-#define sCE SCTP_CONNTRACK_COOKIE_ECHOED
-#define sES SCTP_CONNTRACK_ESTABLISHED
-#define sSS SCTP_CONNTRACK_SHUTDOWN_SENT
-#define sSR SCTP_CONNTRACK_SHUTDOWN_RECD
-#define sSA SCTP_CONNTRACK_SHUTDOWN_ACK_SENT
-#define sIV SCTP_CONNTRACK_MAX
-
-/*
- These are the descriptions of the states:
-
-NOTE: These state names are tantalizingly similar to the states of an
-SCTP endpoint. But the interpretation of the states is a little different,
-considering that these are the states of the connection and not of an end
-point. Please note the subtleties. -Kiran
-
-NONE - Nothing so far.
-COOKIE WAIT - We have seen an INIT chunk in the original direction, or also
- an INIT_ACK chunk in the reply direction.
-COOKIE ECHOED - We have seen a COOKIE_ECHO chunk in the original direction.
-ESTABLISHED - We have seen a COOKIE_ACK in the reply direction.
-SHUTDOWN_SENT - We have seen a SHUTDOWN chunk in the original direction.
-SHUTDOWN_RECD - We have seen a SHUTDOWN chunk in the reply directoin.
-SHUTDOWN_ACK_SENT - We have seen a SHUTDOWN_ACK chunk in the direction opposite
- to that of the SHUTDOWN chunk.
-CLOSED - We have seen a SHUTDOWN_COMPLETE chunk in the direction of
- the SHUTDOWN chunk. Connection is closed.
-*/
-
-/* TODO
- - I have assumed that the first INIT is in the original direction.
- This messes things when an INIT comes in the reply direction in CLOSED
- state.
- - Check the error type in the reply dir before transitioning from
-cookie echoed to closed.
- - Sec 5.2.4 of RFC 2960
- - Multi Homing support.
-*/
-
-/* SCTP conntrack state transitions */
-static const enum sctp_conntrack sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
- {
-/* ORIGINAL */
-/* sNO, sCL, sCW, sCE, sES, sSS, sSR, sSA */
-/* init */ {sCW, sCW, sCW, sCE, sES, sSS, sSR, sSA},
-/* init_ack */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},
-/* abort */ {sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
-/* shutdown */ {sCL, sCL, sCW, sCE, sSS, sSS, sSR, sSA},
-/* shutdown_ack */ {sSA, sCL, sCW, sCE, sES, sSA, sSA, sSA},
-/* error */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant have Stale cookie*/
-/* cookie_echo */ {sCL, sCL, sCE, sCE, sES, sSS, sSR, sSA},/* 5.2.4 - Big TODO */
-/* cookie_ack */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant come in orig dir */
-/* shutdown_comp*/ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sCL}
- },
- {
-/* REPLY */
-/* sNO, sCL, sCW, sCE, sES, sSS, sSR, sSA */
-/* init */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* INIT in sCL Big TODO */
-/* init_ack */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},
-/* abort */ {sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
-/* shutdown */ {sIV, sCL, sCW, sCE, sSR, sSS, sSR, sSA},
-/* shutdown_ack */ {sIV, sCL, sCW, sCE, sES, sSA, sSA, sSA},
-/* error */ {sIV, sCL, sCW, sCL, sES, sSS, sSR, sSA},
-/* cookie_echo */ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sSA},/* Cant come in reply dir */
-/* cookie_ack */ {sIV, sCL, sCW, sES, sES, sSS, sSR, sSA},
-/* shutdown_comp*/ {sIV, sCL, sCW, sCE, sES, sSS, sSR, sCL}
- }
-};
-
-static int sctp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- sctp_sctphdr_t _hdr, *hp;
-
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- /* Actually only need first 8 bytes. */
- hp = skb_header_pointer(skb, dataoff, 8, &_hdr);
- if (hp == NULL)
- return 0;
-
- tuple->src.u.sctp.port = hp->source;
- tuple->dst.u.sctp.port = hp->dest;
- return 1;
-}
-
-static int sctp_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- tuple->src.u.sctp.port = orig->dst.u.sctp.port;
- tuple->dst.u.sctp.port = orig->src.u.sctp.port;
- return 1;
-}
-
-/* Print out the per-protocol part of the tuple. */
-static int sctp_print_tuple(struct seq_file *s,
- const struct ip_conntrack_tuple *tuple)
-{
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- return seq_printf(s, "sport=%hu dport=%hu ",
- ntohs(tuple->src.u.sctp.port),
- ntohs(tuple->dst.u.sctp.port));
-}
-
-/* Print out the private part of the conntrack. */
-static int sctp_print_conntrack(struct seq_file *s,
- const struct ip_conntrack *conntrack)
-{
- enum sctp_conntrack state;
-
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- read_lock_bh(&sctp_lock);
- state = conntrack->proto.sctp.state;
- read_unlock_bh(&sctp_lock);
-
- return seq_printf(s, "%s ", sctp_conntrack_names[state]);
-}
-
-#define for_each_sctp_chunk(skb, sch, _sch, offset, count) \
-for (offset = skb->nh.iph->ihl * 4 + sizeof(sctp_sctphdr_t), count = 0; \
- offset < skb->len && \
- (sch = skb_header_pointer(skb, offset, sizeof(_sch), &_sch)); \
- offset += (ntohs(sch->length) + 3) & ~3, count++)
-
-/* Some validity checks to make sure the chunks are fine */
-static int do_basic_checks(struct ip_conntrack *conntrack,
- const struct sk_buff *skb,
- char *map)
-{
- u_int32_t offset, count;
- sctp_chunkhdr_t _sch, *sch;
- int flag;
-
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- flag = 0;
-
- for_each_sctp_chunk (skb, sch, _sch, offset, count) {
- DEBUGP("Chunk Num: %d Type: %d\n", count, sch->type);
-
- if (sch->type == SCTP_CID_INIT
- || sch->type == SCTP_CID_INIT_ACK
- || sch->type == SCTP_CID_SHUTDOWN_COMPLETE) {
- flag = 1;
- }
-
- /*
- * Cookie Ack/Echo chunks not the first OR
- * Init / Init Ack / Shutdown compl chunks not the only chunks
- * OR zero-length.
- */
- if (((sch->type == SCTP_CID_COOKIE_ACK
- || sch->type == SCTP_CID_COOKIE_ECHO
- || flag)
- && count !=0) || !sch->length) {
- DEBUGP("Basic checks failed\n");
- return 1;
- }
-
- if (map) {
- set_bit(sch->type, (void *)map);
- }
- }
-
- DEBUGP("Basic checks passed\n");
- return count == 0;
-}
-
-static int new_state(enum ip_conntrack_dir dir,
- enum sctp_conntrack cur_state,
- int chunk_type)
-{
- int i;
-
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- DEBUGP("Chunk type: %d\n", chunk_type);
-
- switch (chunk_type) {
- case SCTP_CID_INIT:
- DEBUGP("SCTP_CID_INIT\n");
- i = 0; break;
- case SCTP_CID_INIT_ACK:
- DEBUGP("SCTP_CID_INIT_ACK\n");
- i = 1; break;
- case SCTP_CID_ABORT:
- DEBUGP("SCTP_CID_ABORT\n");
- i = 2; break;
- case SCTP_CID_SHUTDOWN:
- DEBUGP("SCTP_CID_SHUTDOWN\n");
- i = 3; break;
- case SCTP_CID_SHUTDOWN_ACK:
- DEBUGP("SCTP_CID_SHUTDOWN_ACK\n");
- i = 4; break;
- case SCTP_CID_ERROR:
- DEBUGP("SCTP_CID_ERROR\n");
- i = 5; break;
- case SCTP_CID_COOKIE_ECHO:
- DEBUGP("SCTP_CID_COOKIE_ECHO\n");
- i = 6; break;
- case SCTP_CID_COOKIE_ACK:
- DEBUGP("SCTP_CID_COOKIE_ACK\n");
- i = 7; break;
- case SCTP_CID_SHUTDOWN_COMPLETE:
- DEBUGP("SCTP_CID_SHUTDOWN_COMPLETE\n");
- i = 8; break;
- default:
- /* Other chunks like DATA, SACK, HEARTBEAT and
- its ACK do not cause a change in state */
- DEBUGP("Unknown chunk type, Will stay in %s\n",
- sctp_conntrack_names[cur_state]);
- return cur_state;
- }
-
- DEBUGP("dir: %d cur_state: %s chunk_type: %d new_state: %s\n",
- dir, sctp_conntrack_names[cur_state], chunk_type,
- sctp_conntrack_names[sctp_conntracks[dir][i][cur_state]]);
-
- return sctp_conntracks[dir][i][cur_state];
-}
-
-/* Returns verdict for packet, or -1 for invalid. */
-static int sctp_packet(struct ip_conntrack *conntrack,
- const struct sk_buff *skb,
- enum ip_conntrack_info ctinfo)
-{
- enum sctp_conntrack newconntrack, oldsctpstate;
- struct iphdr *iph = skb->nh.iph;
- sctp_sctphdr_t _sctph, *sh;
- sctp_chunkhdr_t _sch, *sch;
- u_int32_t offset, count;
- char map[256 / sizeof (char)] = {0};
-
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- sh = skb_header_pointer(skb, iph->ihl * 4, sizeof(_sctph), &_sctph);
- if (sh == NULL)
- return -1;
-
- if (do_basic_checks(conntrack, skb, map) != 0)
- return -1;
-
- /* Check the verification tag (Sec 8.5) */
- if (!test_bit(SCTP_CID_INIT, (void *)map)
- && !test_bit(SCTP_CID_SHUTDOWN_COMPLETE, (void *)map)
- && !test_bit(SCTP_CID_COOKIE_ECHO, (void *)map)
- && !test_bit(SCTP_CID_ABORT, (void *)map)
- && !test_bit(SCTP_CID_SHUTDOWN_ACK, (void *)map)
- && (sh->vtag != conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])) {
- DEBUGP("Verification tag check failed\n");
- return -1;
- }
-
- oldsctpstate = newconntrack = SCTP_CONNTRACK_MAX;
- for_each_sctp_chunk (skb, sch, _sch, offset, count) {
- write_lock_bh(&sctp_lock);
-
- /* Special cases of Verification tag check (Sec 8.5.1) */
- if (sch->type == SCTP_CID_INIT) {
- /* Sec 8.5.1 (A) */
- if (sh->vtag != 0) {
- write_unlock_bh(&sctp_lock);
- return -1;
- }
- } else if (sch->type == SCTP_CID_ABORT) {
- /* Sec 8.5.1 (B) */
- if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])
- && !(sh->vtag == conntrack->proto.sctp.vtag
- [1 - CTINFO2DIR(ctinfo)])) {
- write_unlock_bh(&sctp_lock);
- return -1;
- }
- } else if (sch->type == SCTP_CID_SHUTDOWN_COMPLETE) {
- /* Sec 8.5.1 (C) */
- if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])
- && !(sh->vtag == conntrack->proto.sctp.vtag
- [1 - CTINFO2DIR(ctinfo)]
- && (sch->flags & 1))) {
- write_unlock_bh(&sctp_lock);
- return -1;
- }
- } else if (sch->type == SCTP_CID_COOKIE_ECHO) {
- /* Sec 8.5.1 (D) */
- if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])) {
- write_unlock_bh(&sctp_lock);
- return -1;
- }
- }
-
- oldsctpstate = conntrack->proto.sctp.state;
- newconntrack = new_state(CTINFO2DIR(ctinfo), oldsctpstate, sch->type);
-
- /* Invalid */
- if (newconntrack == SCTP_CONNTRACK_MAX) {
- DEBUGP("ip_conntrack_sctp: Invalid dir=%i ctype=%u conntrack=%u\n",
- CTINFO2DIR(ctinfo), sch->type, oldsctpstate);
- write_unlock_bh(&sctp_lock);
- return -1;
- }
-
- /* If it is an INIT or an INIT ACK note down the vtag */
- if (sch->type == SCTP_CID_INIT
- || sch->type == SCTP_CID_INIT_ACK) {
- sctp_inithdr_t _inithdr, *ih;
-
- ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
- sizeof(_inithdr), &_inithdr);
- if (ih == NULL) {
- write_unlock_bh(&sctp_lock);
- return -1;
- }
- DEBUGP("Setting vtag %x for dir %d\n",
- ih->init_tag, !CTINFO2DIR(ctinfo));
- conntrack->proto.sctp.vtag[!CTINFO2DIR(ctinfo)] = ih->init_tag;
- }
-
- conntrack->proto.sctp.state = newconntrack;
- if (oldsctpstate != newconntrack)
- ip_conntrack_event_cache(IPCT_PROTOINFO, skb);
- write_unlock_bh(&sctp_lock);
- }
-
- ip_ct_refresh_acct(conntrack, ctinfo, skb, *sctp_timeouts[newconntrack]);
-
- if (oldsctpstate == SCTP_CONNTRACK_COOKIE_ECHOED
- && CTINFO2DIR(ctinfo) == IP_CT_DIR_REPLY
- && newconntrack == SCTP_CONNTRACK_ESTABLISHED) {
- DEBUGP("Setting assured bit\n");
- set_bit(IPS_ASSURED_BIT, &conntrack->status);
- ip_conntrack_event_cache(IPCT_STATUS, skb);
- }
-
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int sctp_new(struct ip_conntrack *conntrack,
- const struct sk_buff *skb)
-{
- enum sctp_conntrack newconntrack;
- struct iphdr *iph = skb->nh.iph;
- sctp_sctphdr_t _sctph, *sh;
- sctp_chunkhdr_t _sch, *sch;
- u_int32_t offset, count;
- char map[256 / sizeof (char)] = {0};
-
- DEBUGP(__FUNCTION__);
- DEBUGP("\n");
-
- sh = skb_header_pointer(skb, iph->ihl * 4, sizeof(_sctph), &_sctph);
- if (sh == NULL)
- return 0;
-
- if (do_basic_checks(conntrack, skb, map) != 0)
- return 0;
-
- /* If an OOTB packet has any of these chunks discard (Sec 8.4) */
- if ((test_bit (SCTP_CID_ABORT, (void *)map))
- || (test_bit (SCTP_CID_SHUTDOWN_COMPLETE, (void *)map))
- || (test_bit (SCTP_CID_COOKIE_ACK, (void *)map))) {
- return 0;
- }
-
- newconntrack = SCTP_CONNTRACK_MAX;
- for_each_sctp_chunk (skb, sch, _sch, offset, count) {
- /* Don't need lock here: this conntrack not in circulation yet */
- newconntrack = new_state (IP_CT_DIR_ORIGINAL,
- SCTP_CONNTRACK_NONE, sch->type);
-
- /* Invalid: delete conntrack */
- if (newconntrack == SCTP_CONNTRACK_MAX) {
- DEBUGP("ip_conntrack_sctp: invalid new deleting.\n");
- return 0;
- }
-
- /* Copy the vtag into the state info */
- if (sch->type == SCTP_CID_INIT) {
- if (sh->vtag == 0) {
- sctp_inithdr_t _inithdr, *ih;
-
- ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
- sizeof(_inithdr), &_inithdr);
- if (ih == NULL)
- return 0;
-
- DEBUGP("Setting vtag %x for new conn\n",
- ih->init_tag);
-
- conntrack->proto.sctp.vtag[IP_CT_DIR_REPLY] =
- ih->init_tag;
- } else {
- /* Sec 8.5.1 (A) */
- return 0;
- }
- }
- /* If it is a shutdown ack OOTB packet, we expect a return
- shutdown complete, otherwise an ABORT Sec 8.4 (5) and (8) */
- else {
- DEBUGP("Setting vtag %x for new conn OOTB\n",
- sh->vtag);
- conntrack->proto.sctp.vtag[IP_CT_DIR_REPLY] = sh->vtag;
- }
-
- conntrack->proto.sctp.state = newconntrack;
- }
-
- return 1;
-}
-
-static struct ip_conntrack_protocol ip_conntrack_protocol_sctp = {
- .proto = IPPROTO_SCTP,
- .name = "sctp",
- .pkt_to_tuple = sctp_pkt_to_tuple,
- .invert_tuple = sctp_invert_tuple,
- .print_tuple = sctp_print_tuple,
- .print_conntrack = sctp_print_conntrack,
- .packet = sctp_packet,
- .new = sctp_new,
- .destroy = NULL,
- .me = THIS_MODULE,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .tuple_to_nfattr = ip_ct_port_tuple_to_nfattr,
- .nfattr_to_tuple = ip_ct_port_nfattr_to_tuple,
-#endif
-};
-
-#ifdef CONFIG_SYSCTL
-static ctl_table ip_ct_sysctl_table[] = {
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED,
- .procname = "ip_conntrack_sctp_timeout_closed",
- .data = &ip_ct_sctp_timeout_closed,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT,
- .procname = "ip_conntrack_sctp_timeout_cookie_wait",
- .data = &ip_ct_sctp_timeout_cookie_wait,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED,
- .procname = "ip_conntrack_sctp_timeout_cookie_echoed",
- .data = &ip_ct_sctp_timeout_cookie_echoed,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED,
- .procname = "ip_conntrack_sctp_timeout_established",
- .data = &ip_ct_sctp_timeout_established,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT,
- .procname = "ip_conntrack_sctp_timeout_shutdown_sent",
- .data = &ip_ct_sctp_timeout_shutdown_sent,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD,
- .procname = "ip_conntrack_sctp_timeout_shutdown_recd",
- .data = &ip_ct_sctp_timeout_shutdown_recd,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT,
- .procname = "ip_conntrack_sctp_timeout_shutdown_ack_sent",
- .data = &ip_ct_sctp_timeout_shutdown_ack_sent,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ip_ct_netfilter_table[] = {
- {
- .ctl_name = NET_IPV4_NETFILTER,
- .procname = "netfilter",
- .mode = 0555,
- .child = ip_ct_sysctl_table,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ip_ct_ipv4_table[] = {
- {
- .ctl_name = NET_IPV4,
- .procname = "ipv4",
- .mode = 0555,
- .child = ip_ct_netfilter_table,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ip_ct_net_table[] = {
- {
- .ctl_name = CTL_NET,
- .procname = "net",
- .mode = 0555,
- .child = ip_ct_ipv4_table,
- },
- { .ctl_name = 0 }
-};
-
-static struct ctl_table_header *ip_ct_sysctl_header;
-#endif
-
-static int __init ip_conntrack_proto_sctp_init(void)
-{
- int ret;
-
- ret = ip_conntrack_protocol_register(&ip_conntrack_protocol_sctp);
- if (ret) {
- printk("ip_conntrack_proto_sctp: protocol register failed\n");
- goto out;
- }
-
-#ifdef CONFIG_SYSCTL
- ip_ct_sysctl_header = register_sysctl_table(ip_ct_net_table);
- if (ip_ct_sysctl_header == NULL) {
- ret = -ENOMEM;
- printk("ip_conntrack_proto_sctp: can't register to sysctl.\n");
- goto cleanup;
- }
-#endif
-
- return ret;
-
-#ifdef CONFIG_SYSCTL
- cleanup:
- ip_conntrack_protocol_unregister(&ip_conntrack_protocol_sctp);
-#endif
- out:
- DEBUGP("SCTP conntrack module loading %s\n",
- ret ? "failed": "succeeded");
- return ret;
-}
-
-static void __exit ip_conntrack_proto_sctp_fini(void)
-{
- ip_conntrack_protocol_unregister(&ip_conntrack_protocol_sctp);
-#ifdef CONFIG_SYSCTL
- unregister_sysctl_table(ip_ct_sysctl_header);
-#endif
- DEBUGP("SCTP conntrack module unloaded\n");
-}
-
-module_init(ip_conntrack_proto_sctp_init);
-module_exit(ip_conntrack_proto_sctp_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kiran Kumar Immidi");
-MODULE_DESCRIPTION("Netfilter connection tracking protocol helper for SCTP");
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>:
- * - Real stateful connection tracking
- * - Modified state transitions table
- * - Window scaling support added
- * - SACK support added
- *
- * Willy Tarreau:
- * - State table bugfixes
- * - More robust state changes
- * - Tuning timer parameters
- *
- * version 2.2
- */
-
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/module.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/spinlock.h>
-
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-
-#if 0
-#define DEBUGP printk
-#define DEBUGP_VARS
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/* Protects conntrack->proto.tcp */
-static DEFINE_RWLOCK(tcp_lock);
-
-/* "Be conservative in what you do,
- be liberal in what you accept from others."
- If it's non-zero, we mark only out of window RST segments as INVALID. */
-int ip_ct_tcp_be_liberal __read_mostly = 0;
-
-/* If it is set to zero, we disable picking up already established
- connections. */
-int ip_ct_tcp_loose __read_mostly = 1;
-
-/* Max number of the retransmitted packets without receiving an (acceptable)
- ACK from the destination. If this number is reached, a shorter timer
- will be started. */
-int ip_ct_tcp_max_retrans __read_mostly = 3;
-
- /* FIXME: Examine ipfilter's timeouts and conntrack transitions more
- closely. They're more complex. --RR */
-
-static const char *tcp_conntrack_names[] = {
- "NONE",
- "SYN_SENT",
- "SYN_RECV",
- "ESTABLISHED",
- "FIN_WAIT",
- "CLOSE_WAIT",
- "LAST_ACK",
- "TIME_WAIT",
- "CLOSE",
- "LISTEN"
-};
-
-#define SECS * HZ
-#define MINS * 60 SECS
-#define HOURS * 60 MINS
-#define DAYS * 24 HOURS
-
-unsigned int ip_ct_tcp_timeout_syn_sent __read_mostly = 2 MINS;
-unsigned int ip_ct_tcp_timeout_syn_recv __read_mostly = 60 SECS;
-unsigned int ip_ct_tcp_timeout_established __read_mostly = 5 DAYS;
-unsigned int ip_ct_tcp_timeout_fin_wait __read_mostly = 2 MINS;
-unsigned int ip_ct_tcp_timeout_close_wait __read_mostly = 60 SECS;
-unsigned int ip_ct_tcp_timeout_last_ack __read_mostly = 30 SECS;
-unsigned int ip_ct_tcp_timeout_time_wait __read_mostly = 2 MINS;
-unsigned int ip_ct_tcp_timeout_close __read_mostly = 10 SECS;
-
-/* RFC1122 says the R2 limit should be at least 100 seconds.
- Linux uses 15 packets as limit, which corresponds
- to ~13-30min depending on RTO. */
-unsigned int ip_ct_tcp_timeout_max_retrans __read_mostly = 5 MINS;
-
-static const unsigned int * tcp_timeouts[]
-= { NULL, /* TCP_CONNTRACK_NONE */
- &ip_ct_tcp_timeout_syn_sent, /* TCP_CONNTRACK_SYN_SENT, */
- &ip_ct_tcp_timeout_syn_recv, /* TCP_CONNTRACK_SYN_RECV, */
- &ip_ct_tcp_timeout_established, /* TCP_CONNTRACK_ESTABLISHED, */
- &ip_ct_tcp_timeout_fin_wait, /* TCP_CONNTRACK_FIN_WAIT, */
- &ip_ct_tcp_timeout_close_wait, /* TCP_CONNTRACK_CLOSE_WAIT, */
- &ip_ct_tcp_timeout_last_ack, /* TCP_CONNTRACK_LAST_ACK, */
- &ip_ct_tcp_timeout_time_wait, /* TCP_CONNTRACK_TIME_WAIT, */
- &ip_ct_tcp_timeout_close, /* TCP_CONNTRACK_CLOSE, */
- NULL, /* TCP_CONNTRACK_LISTEN */
- };
-
-#define sNO TCP_CONNTRACK_NONE
-#define sSS TCP_CONNTRACK_SYN_SENT
-#define sSR TCP_CONNTRACK_SYN_RECV
-#define sES TCP_CONNTRACK_ESTABLISHED
-#define sFW TCP_CONNTRACK_FIN_WAIT
-#define sCW TCP_CONNTRACK_CLOSE_WAIT
-#define sLA TCP_CONNTRACK_LAST_ACK
-#define sTW TCP_CONNTRACK_TIME_WAIT
-#define sCL TCP_CONNTRACK_CLOSE
-#define sLI TCP_CONNTRACK_LISTEN
-#define sIV TCP_CONNTRACK_MAX
-#define sIG TCP_CONNTRACK_IGNORE
-
-/* What TCP flags are set from RST/SYN/FIN/ACK. */
-enum tcp_bit_set {
- TCP_SYN_SET,
- TCP_SYNACK_SET,
- TCP_FIN_SET,
- TCP_ACK_SET,
- TCP_RST_SET,
- TCP_NONE_SET,
-};
-
-/*
- * The TCP state transition table needs a few words...
- *
- * We are the man in the middle. All the packets go through us
- * but might get lost in transit to the destination.
- * It is assumed that the destinations can't receive segments
- * we haven't seen.
- *
- * The checked segment is in window, but our windows are *not*
- * equivalent with the ones of the sender/receiver. We always
- * try to guess the state of the current sender.
- *
- * The meaning of the states are:
- *
- * NONE: initial state
- * SYN_SENT: SYN-only packet seen
- * SYN_RECV: SYN-ACK packet seen
- * ESTABLISHED: ACK packet seen
- * FIN_WAIT: FIN packet seen
- * CLOSE_WAIT: ACK seen (after FIN)
- * LAST_ACK: FIN seen (after FIN)
- * TIME_WAIT: last ACK seen
- * CLOSE: closed connection
- *
- * LISTEN state is not used.
- *
- * Packets marked as IGNORED (sIG):
- * if they may be either invalid or valid
- * and the receiver may send back a connection
- * closing RST or a SYN/ACK.
- *
- * Packets marked as INVALID (sIV):
- * if they are invalid
- * or we do not support the request (simultaneous open)
- */
-static const enum tcp_conntrack tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
- {
-/* ORIGINAL */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*syn*/ { sSS, sSS, sIG, sIG, sIG, sIG, sIG, sSS, sSS, sIV },
-/*
- * sNO -> sSS Initialize a new connection
- * sSS -> sSS Retransmitted SYN
- * sSR -> sIG Late retransmitted SYN?
- * sES -> sIG Error: SYNs in window outside the SYN_SENT state
- * are errors. Receiver will reply with RST
- * and close the connection.
- * Or we are not in sync and hold a dead connection.
- * sFW -> sIG
- * sCW -> sIG
- * sLA -> sIG
- * sTW -> sSS Reopened connection (RFC 1122).
- * sCL -> sSS
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*synack*/ { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV },
-/*
- * A SYN/ACK from the client is always invalid:
- * - either it tries to set up a simultaneous open, which is
- * not supported;
- * - or the firewall has just been inserted between the two hosts
- * during the session set-up. The SYN will be retransmitted
- * by the true client (or it'll time out).
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*fin*/ { sIV, sIV, sFW, sFW, sLA, sLA, sLA, sTW, sCL, sIV },
-/*
- * sNO -> sIV Too late and no reason to do anything...
- * sSS -> sIV Client migth not send FIN in this state:
- * we enforce waiting for a SYN/ACK reply first.
- * sSR -> sFW Close started.
- * sES -> sFW
- * sFW -> sLA FIN seen in both directions, waiting for
- * the last ACK.
- * Migth be a retransmitted FIN as well...
- * sCW -> sLA
- * sLA -> sLA Retransmitted FIN. Remain in the same state.
- * sTW -> sTW
- * sCL -> sCL
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*ack*/ { sES, sIV, sES, sES, sCW, sCW, sTW, sTW, sCL, sIV },
-/*
- * sNO -> sES Assumed.
- * sSS -> sIV ACK is invalid: we haven't seen a SYN/ACK yet.
- * sSR -> sES Established state is reached.
- * sES -> sES :-)
- * sFW -> sCW Normal close request answered by ACK.
- * sCW -> sCW
- * sLA -> sTW Last ACK detected.
- * sTW -> sTW Retransmitted last ACK. Remain in the same state.
- * sCL -> sCL
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*rst*/ { sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sIV },
-/*none*/ { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV }
- },
- {
-/* REPLY */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*syn*/ { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV },
-/*
- * sNO -> sIV Never reached.
- * sSS -> sIV Simultaneous open, not supported
- * sSR -> sIV Simultaneous open, not supported.
- * sES -> sIV Server may not initiate a connection.
- * sFW -> sIV
- * sCW -> sIV
- * sLA -> sIV
- * sTW -> sIV Reopened connection, but server may not do it.
- * sCL -> sIV
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*synack*/ { sIV, sSR, sSR, sIG, sIG, sIG, sIG, sIG, sIG, sIV },
-/*
- * sSS -> sSR Standard open.
- * sSR -> sSR Retransmitted SYN/ACK.
- * sES -> sIG Late retransmitted SYN/ACK?
- * sFW -> sIG Might be SYN/ACK answering ignored SYN
- * sCW -> sIG
- * sLA -> sIG
- * sTW -> sIG
- * sCL -> sIG
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*fin*/ { sIV, sIV, sFW, sFW, sLA, sLA, sLA, sTW, sCL, sIV },
-/*
- * sSS -> sIV Server might not send FIN in this state.
- * sSR -> sFW Close started.
- * sES -> sFW
- * sFW -> sLA FIN seen in both directions.
- * sCW -> sLA
- * sLA -> sLA Retransmitted FIN.
- * sTW -> sTW
- * sCL -> sCL
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*ack*/ { sIV, sIG, sSR, sES, sCW, sCW, sTW, sTW, sCL, sIV },
-/*
- * sSS -> sIG Might be a half-open connection.
- * sSR -> sSR Might answer late resent SYN.
- * sES -> sES :-)
- * sFW -> sCW Normal close request answered by ACK.
- * sCW -> sCW
- * sLA -> sTW Last ACK detected.
- * sTW -> sTW Retransmitted last ACK.
- * sCL -> sCL
- */
-/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */
-/*rst*/ { sIV, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sIV },
-/*none*/ { sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV, sIV }
- }
-};
-
-static int tcp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- struct tcphdr _hdr, *hp;
-
- /* Actually only need first 8 bytes. */
- hp = skb_header_pointer(skb, dataoff, 8, &_hdr);
- if (hp == NULL)
- return 0;
-
- tuple->src.u.tcp.port = hp->source;
- tuple->dst.u.tcp.port = hp->dest;
-
- return 1;
-}
-
-static int tcp_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- tuple->src.u.tcp.port = orig->dst.u.tcp.port;
- tuple->dst.u.tcp.port = orig->src.u.tcp.port;
- return 1;
-}
-
-/* Print out the per-protocol part of the tuple. */
-static int tcp_print_tuple(struct seq_file *s,
- const struct ip_conntrack_tuple *tuple)
-{
- return seq_printf(s, "sport=%hu dport=%hu ",
- ntohs(tuple->src.u.tcp.port),
- ntohs(tuple->dst.u.tcp.port));
-}
-
-/* Print out the private part of the conntrack. */
-static int tcp_print_conntrack(struct seq_file *s,
- const struct ip_conntrack *conntrack)
-{
- enum tcp_conntrack state;
-
- read_lock_bh(&tcp_lock);
- state = conntrack->proto.tcp.state;
- read_unlock_bh(&tcp_lock);
-
- return seq_printf(s, "%s ", tcp_conntrack_names[state]);
-}
-
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
-static int tcp_to_nfattr(struct sk_buff *skb, struct nfattr *nfa,
- const struct ip_conntrack *ct)
-{
- struct nfattr *nest_parms;
-
- read_lock_bh(&tcp_lock);
- nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
- NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
- &ct->proto.tcp.state);
- read_unlock_bh(&tcp_lock);
-
- NFA_NEST_END(skb, nest_parms);
-
- return 0;
-
-nfattr_failure:
- read_unlock_bh(&tcp_lock);
- return -1;
-}
-
-static const size_t cta_min_tcp[CTA_PROTOINFO_TCP_MAX] = {
- [CTA_PROTOINFO_TCP_STATE-1] = sizeof(u_int8_t),
-};
-
-static int nfattr_to_tcp(struct nfattr *cda[], struct ip_conntrack *ct)
-{
- struct nfattr *attr = cda[CTA_PROTOINFO_TCP-1];
- struct nfattr *tb[CTA_PROTOINFO_TCP_MAX];
-
- /* updates could not contain anything about the private
- * protocol info, in that case skip the parsing */
- if (!attr)
- return 0;
-
- nfattr_parse_nested(tb, CTA_PROTOINFO_TCP_MAX, attr);
-
- if (nfattr_bad_size(tb, CTA_PROTOINFO_TCP_MAX, cta_min_tcp))
- return -EINVAL;
-
- if (!tb[CTA_PROTOINFO_TCP_STATE-1])
- return -EINVAL;
-
- write_lock_bh(&tcp_lock);
- ct->proto.tcp.state =
- *(u_int8_t *)NFA_DATA(tb[CTA_PROTOINFO_TCP_STATE-1]);
- write_unlock_bh(&tcp_lock);
-
- return 0;
-}
-#endif
-
-static unsigned int get_conntrack_index(const struct tcphdr *tcph)
-{
- if (tcph->rst) return TCP_RST_SET;
- else if (tcph->syn) return (tcph->ack ? TCP_SYNACK_SET : TCP_SYN_SET);
- else if (tcph->fin) return TCP_FIN_SET;
- else if (tcph->ack) return TCP_ACK_SET;
- else return TCP_NONE_SET;
-}
-
-/* TCP connection tracking based on 'Real Stateful TCP Packet Filtering
- in IP Filter' by Guido van Rooij.
-
- http://www.nluug.nl/events/sane2000/papers.html
- http://www.iae.nl/users/guido/papers/tcp_filtering.ps.gz
-
- The boundaries and the conditions are changed according to RFC793:
- the packet must intersect the window (i.e. segments may be
- after the right or before the left edge) and thus receivers may ACK
- segments after the right edge of the window.
-
- td_maxend = max(sack + max(win,1)) seen in reply packets
- td_maxwin = max(max(win, 1)) + (sack - ack) seen in sent packets
- td_maxwin += seq + len - sender.td_maxend
- if seq + len > sender.td_maxend
- td_end = max(seq + len) seen in sent packets
-
- I. Upper bound for valid data: seq <= sender.td_maxend
- II. Lower bound for valid data: seq + len >= sender.td_end - receiver.td_maxwin
- III. Upper bound for valid ack: sack <= receiver.td_end
- IV. Lower bound for valid ack: ack >= receiver.td_end - MAXACKWINDOW
-
- where sack is the highest right edge of sack block found in the packet.
-
- The upper bound limit for a valid ack is not ignored -
- we doesn't have to deal with fragments.
-*/
-
-static inline __u32 segment_seq_plus_len(__u32 seq,
- size_t len,
- struct iphdr *iph,
- struct tcphdr *tcph)
-{
- return (seq + len - (iph->ihl + tcph->doff)*4
- + (tcph->syn ? 1 : 0) + (tcph->fin ? 1 : 0));
-}
-
-/* Fixme: what about big packets? */
-#define MAXACKWINCONST 66000
-#define MAXACKWINDOW(sender) \
- ((sender)->td_maxwin > MAXACKWINCONST ? (sender)->td_maxwin \
- : MAXACKWINCONST)
-
-/*
- * Simplified tcp_parse_options routine from tcp_input.c
- */
-static void tcp_options(const struct sk_buff *skb,
- struct iphdr *iph,
- struct tcphdr *tcph,
- struct ip_ct_tcp_state *state)
-{
- unsigned char buff[(15 * 4) - sizeof(struct tcphdr)];
- unsigned char *ptr;
- int length = (tcph->doff*4) - sizeof(struct tcphdr);
-
- if (!length)
- return;
-
- ptr = skb_header_pointer(skb,
- (iph->ihl * 4) + sizeof(struct tcphdr),
- length, buff);
- BUG_ON(ptr == NULL);
-
- state->td_scale =
- state->flags = 0;
-
- while (length > 0) {
- int opcode=*ptr++;
- int opsize;
-
- switch (opcode) {
- case TCPOPT_EOL:
- return;
- case TCPOPT_NOP: /* Ref: RFC 793 section 3.1 */
- length--;
- continue;
- default:
- opsize=*ptr++;
- if (opsize < 2) /* "silly options" */
- return;
- if (opsize > length)
- break; /* don't parse partial options */
-
- if (opcode == TCPOPT_SACK_PERM
- && opsize == TCPOLEN_SACK_PERM)
- state->flags |= IP_CT_TCP_FLAG_SACK_PERM;
- else if (opcode == TCPOPT_WINDOW
- && opsize == TCPOLEN_WINDOW) {
- state->td_scale = *(u_int8_t *)ptr;
-
- if (state->td_scale > 14) {
- /* See RFC1323 */
- state->td_scale = 14;
- }
- state->flags |=
- IP_CT_TCP_FLAG_WINDOW_SCALE;
- }
- ptr += opsize - 2;
- length -= opsize;
- }
- }
-}
-
-static void tcp_sack(const struct sk_buff *skb,
- struct iphdr *iph,
- struct tcphdr *tcph,
- __u32 *sack)
-{
- unsigned char buff[(15 * 4) - sizeof(struct tcphdr)];
- unsigned char *ptr;
- int length = (tcph->doff*4) - sizeof(struct tcphdr);
- __u32 tmp;
-
- if (!length)
- return;
-
- ptr = skb_header_pointer(skb,
- (iph->ihl * 4) + sizeof(struct tcphdr),
- length, buff);
- BUG_ON(ptr == NULL);
-
- /* Fast path for timestamp-only option */
- if (length == TCPOLEN_TSTAMP_ALIGNED*4
- && *(__be32 *)ptr ==
- __constant_htonl((TCPOPT_NOP << 24)
- | (TCPOPT_NOP << 16)
- | (TCPOPT_TIMESTAMP << 8)
- | TCPOLEN_TIMESTAMP))
- return;
-
- while (length > 0) {
- int opcode=*ptr++;
- int opsize, i;
-
- switch (opcode) {
- case TCPOPT_EOL:
- return;
- case TCPOPT_NOP: /* Ref: RFC 793 section 3.1 */
- length--;
- continue;
- default:
- opsize=*ptr++;
- if (opsize < 2) /* "silly options" */
- return;
- if (opsize > length)
- break; /* don't parse partial options */
-
- if (opcode == TCPOPT_SACK
- && opsize >= (TCPOLEN_SACK_BASE
- + TCPOLEN_SACK_PERBLOCK)
- && !((opsize - TCPOLEN_SACK_BASE)
- % TCPOLEN_SACK_PERBLOCK)) {
- for (i = 0;
- i < (opsize - TCPOLEN_SACK_BASE);
- i += TCPOLEN_SACK_PERBLOCK) {
- tmp = ntohl(*((__be32 *)(ptr+i)+1));
-
- if (after(tmp, *sack))
- *sack = tmp;
- }
- return;
- }
- ptr += opsize - 2;
- length -= opsize;
- }
- }
-}
-
-static int tcp_in_window(struct ip_ct_tcp *state,
- enum ip_conntrack_dir dir,
- unsigned int index,
- const struct sk_buff *skb,
- struct iphdr *iph,
- struct tcphdr *tcph)
-{
- struct ip_ct_tcp_state *sender = &state->seen[dir];
- struct ip_ct_tcp_state *receiver = &state->seen[!dir];
- __u32 seq, ack, sack, end, win, swin;
- int res;
-
- /*
- * Get the required data from the packet.
- */
- seq = ntohl(tcph->seq);
- ack = sack = ntohl(tcph->ack_seq);
- win = ntohs(tcph->window);
- end = segment_seq_plus_len(seq, skb->len, iph, tcph);
-
- if (receiver->flags & IP_CT_TCP_FLAG_SACK_PERM)
- tcp_sack(skb, iph, tcph, &sack);
-
- DEBUGP("tcp_in_window: START\n");
- DEBUGP("tcp_in_window: src=%u.%u.%u.%u:%hu dst=%u.%u.%u.%u:%hu "
- "seq=%u ack=%u sack=%u win=%u end=%u\n",
- NIPQUAD(iph->saddr), ntohs(tcph->source),
- NIPQUAD(iph->daddr), ntohs(tcph->dest),
- seq, ack, sack, win, end);
- DEBUGP("tcp_in_window: sender end=%u maxend=%u maxwin=%u scale=%i "
- "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
- sender->td_end, sender->td_maxend, sender->td_maxwin,
- sender->td_scale,
- receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
- receiver->td_scale);
-
- if (sender->td_end == 0) {
- /*
- * Initialize sender data.
- */
- if (tcph->syn && tcph->ack) {
- /*
- * Outgoing SYN-ACK in reply to a SYN.
- */
- sender->td_end =
- sender->td_maxend = end;
- sender->td_maxwin = (win == 0 ? 1 : win);
-
- tcp_options(skb, iph, tcph, sender);
- /*
- * RFC 1323:
- * Both sides must send the Window Scale option
- * to enable window scaling in either direction.
- */
- if (!(sender->flags & IP_CT_TCP_FLAG_WINDOW_SCALE
- && receiver->flags & IP_CT_TCP_FLAG_WINDOW_SCALE))
- sender->td_scale =
- receiver->td_scale = 0;
- } else {
- /*
- * We are in the middle of a connection,
- * its history is lost for us.
- * Let's try to use the data from the packet.
- */
- sender->td_end = end;
- sender->td_maxwin = (win == 0 ? 1 : win);
- sender->td_maxend = end + sender->td_maxwin;
- }
- } else if (((state->state == TCP_CONNTRACK_SYN_SENT
- && dir == IP_CT_DIR_ORIGINAL)
- || (state->state == TCP_CONNTRACK_SYN_RECV
- && dir == IP_CT_DIR_REPLY))
- && after(end, sender->td_end)) {
- /*
- * RFC 793: "if a TCP is reinitialized ... then it need
- * not wait at all; it must only be sure to use sequence
- * numbers larger than those recently used."
- */
- sender->td_end =
- sender->td_maxend = end;
- sender->td_maxwin = (win == 0 ? 1 : win);
-
- tcp_options(skb, iph, tcph, sender);
- }
-
- if (!(tcph->ack)) {
- /*
- * If there is no ACK, just pretend it was set and OK.
- */
- ack = sack = receiver->td_end;
- } else if (((tcp_flag_word(tcph) & (TCP_FLAG_ACK|TCP_FLAG_RST)) ==
- (TCP_FLAG_ACK|TCP_FLAG_RST))
- && (ack == 0)) {
- /*
- * Broken TCP stacks, that set ACK in RST packets as well
- * with zero ack value.
- */
- ack = sack = receiver->td_end;
- }
-
- if (seq == end
- && (!tcph->rst
- || (seq == 0 && state->state == TCP_CONNTRACK_SYN_SENT)))
- /*
- * Packets contains no data: we assume it is valid
- * and check the ack value only.
- * However RST segments are always validated by their
- * SEQ number, except when seq == 0 (reset sent answering
- * SYN.
- */
- seq = end = sender->td_end;
-
- DEBUGP("tcp_in_window: src=%u.%u.%u.%u:%hu dst=%u.%u.%u.%u:%hu "
- "seq=%u ack=%u sack =%u win=%u end=%u\n",
- NIPQUAD(iph->saddr), ntohs(tcph->source),
- NIPQUAD(iph->daddr), ntohs(tcph->dest),
- seq, ack, sack, win, end);
- DEBUGP("tcp_in_window: sender end=%u maxend=%u maxwin=%u scale=%i "
- "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
- sender->td_end, sender->td_maxend, sender->td_maxwin,
- sender->td_scale,
- receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
- receiver->td_scale);
-
- DEBUGP("tcp_in_window: I=%i II=%i III=%i IV=%i\n",
- before(seq, sender->td_maxend + 1),
- after(end, sender->td_end - receiver->td_maxwin - 1),
- before(sack, receiver->td_end + 1),
- after(ack, receiver->td_end - MAXACKWINDOW(sender)));
-
- if (before(seq, sender->td_maxend + 1) &&
- after(end, sender->td_end - receiver->td_maxwin - 1) &&
- before(sack, receiver->td_end + 1) &&
- after(ack, receiver->td_end - MAXACKWINDOW(sender))) {
- /*
- * Take into account window scaling (RFC 1323).
- */
- if (!tcph->syn)
- win <<= sender->td_scale;
-
- /*
- * Update sender data.
- */
- swin = win + (sack - ack);
- if (sender->td_maxwin < swin)
- sender->td_maxwin = swin;
- if (after(end, sender->td_end))
- sender->td_end = end;
- /*
- * Update receiver data.
- */
- if (after(end, sender->td_maxend))
- receiver->td_maxwin += end - sender->td_maxend;
- if (after(sack + win, receiver->td_maxend - 1)) {
- receiver->td_maxend = sack + win;
- if (win == 0)
- receiver->td_maxend++;
- }
-
- /*
- * Check retransmissions.
- */
- if (index == TCP_ACK_SET) {
- if (state->last_dir == dir
- && state->last_seq == seq
- && state->last_ack == ack
- && state->last_end == end
- && state->last_win == win)
- state->retrans++;
- else {
- state->last_dir = dir;
- state->last_seq = seq;
- state->last_ack = ack;
- state->last_end = end;
- state->last_win = win;
- state->retrans = 0;
- }
- }
- res = 1;
- } else {
- res = 0;
- if (sender->flags & IP_CT_TCP_FLAG_BE_LIBERAL ||
- ip_ct_tcp_be_liberal)
- res = 1;
- if (!res && LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: %s ",
- before(seq, sender->td_maxend + 1) ?
- after(end, sender->td_end - receiver->td_maxwin - 1) ?
- before(sack, receiver->td_end + 1) ?
- after(ack, receiver->td_end - MAXACKWINDOW(sender)) ? "BUG"
- : "ACK is under the lower bound (possible overly delayed ACK)"
- : "ACK is over the upper bound (ACKed data not seen yet)"
- : "SEQ is under the lower bound (already ACKed data retransmitted)"
- : "SEQ is over the upper bound (over the window of the receiver)");
- }
-
- DEBUGP("tcp_in_window: res=%i sender end=%u maxend=%u maxwin=%u "
- "receiver end=%u maxend=%u maxwin=%u\n",
- res, sender->td_end, sender->td_maxend, sender->td_maxwin,
- receiver->td_end, receiver->td_maxend, receiver->td_maxwin);
-
- return res;
-}
-
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-/* Update sender->td_end after NAT successfully mangled the packet */
-void ip_conntrack_tcp_update(struct sk_buff *skb,
- struct ip_conntrack *conntrack,
- enum ip_conntrack_dir dir)
-{
- struct iphdr *iph = skb->nh.iph;
- struct tcphdr *tcph = (void *)skb->nh.iph + skb->nh.iph->ihl*4;
- __u32 end;
-#ifdef DEBUGP_VARS
- struct ip_ct_tcp_state *sender = &conntrack->proto.tcp.seen[dir];
- struct ip_ct_tcp_state *receiver = &conntrack->proto.tcp.seen[!dir];
-#endif
-
- end = segment_seq_plus_len(ntohl(tcph->seq), skb->len, iph, tcph);
-
- write_lock_bh(&tcp_lock);
- /*
- * We have to worry for the ack in the reply packet only...
- */
- if (after(end, conntrack->proto.tcp.seen[dir].td_end))
- conntrack->proto.tcp.seen[dir].td_end = end;
- conntrack->proto.tcp.last_end = end;
- write_unlock_bh(&tcp_lock);
- DEBUGP("tcp_update: sender end=%u maxend=%u maxwin=%u scale=%i "
- "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
- sender->td_end, sender->td_maxend, sender->td_maxwin,
- sender->td_scale,
- receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
- receiver->td_scale);
-}
-
-#endif
-
-#define TH_FIN 0x01
-#define TH_SYN 0x02
-#define TH_RST 0x04
-#define TH_PUSH 0x08
-#define TH_ACK 0x10
-#define TH_URG 0x20
-#define TH_ECE 0x40
-#define TH_CWR 0x80
-
-/* table of valid flag combinations - ECE and CWR are always valid */
-static const u8 tcp_valid_flags[(TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG) + 1] =
-{
- [TH_SYN] = 1,
- [TH_SYN|TH_PUSH] = 1,
- [TH_SYN|TH_URG] = 1,
- [TH_SYN|TH_PUSH|TH_URG] = 1,
- [TH_SYN|TH_ACK] = 1,
- [TH_SYN|TH_ACK|TH_PUSH] = 1,
- [TH_RST] = 1,
- [TH_RST|TH_ACK] = 1,
- [TH_RST|TH_ACK|TH_PUSH] = 1,
- [TH_FIN|TH_ACK] = 1,
- [TH_ACK] = 1,
- [TH_ACK|TH_PUSH] = 1,
- [TH_ACK|TH_URG] = 1,
- [TH_ACK|TH_URG|TH_PUSH] = 1,
- [TH_FIN|TH_ACK|TH_PUSH] = 1,
- [TH_FIN|TH_ACK|TH_URG] = 1,
- [TH_FIN|TH_ACK|TH_URG|TH_PUSH] = 1,
-};
-
-/* Protect conntrack agaist broken packets. Code taken from ipt_unclean.c. */
-static int tcp_error(struct sk_buff *skb,
- enum ip_conntrack_info *ctinfo,
- unsigned int hooknum)
-{
- struct iphdr *iph = skb->nh.iph;
- struct tcphdr _tcph, *th;
- unsigned int tcplen = skb->len - iph->ihl * 4;
- u_int8_t tcpflags;
-
- /* Smaller that minimal TCP header? */
- th = skb_header_pointer(skb, iph->ihl * 4,
- sizeof(_tcph), &_tcph);
- if (th == NULL) {
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: short packet ");
- return -NF_ACCEPT;
- }
-
- /* Not whole TCP header or malformed packet */
- if (th->doff*4 < sizeof(struct tcphdr) || tcplen < th->doff*4) {
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: truncated/malformed packet ");
- return -NF_ACCEPT;
- }
-
- /* Checksum invalid? Ignore.
- * We skip checking packets on the outgoing path
- * because it is assumed to be correct.
- */
- /* FIXME: Source route IP option packets --RR */
- if (ip_conntrack_checksum && hooknum == NF_IP_PRE_ROUTING &&
- nf_ip_checksum(skb, hooknum, iph->ihl * 4, IPPROTO_TCP)) {
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: bad TCP checksum ");
- return -NF_ACCEPT;
- }
-
- /* Check TCP flags. */
- tcpflags = (((u_int8_t *)th)[13] & ~(TH_ECE|TH_CWR));
- if (!tcp_valid_flags[tcpflags]) {
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: invalid TCP flag combination ");
- return -NF_ACCEPT;
- }
-
- return NF_ACCEPT;
-}
-
-/* Returns verdict for packet, or -1 for invalid. */
-static int tcp_packet(struct ip_conntrack *conntrack,
- const struct sk_buff *skb,
- enum ip_conntrack_info ctinfo)
-{
- enum tcp_conntrack new_state, old_state;
- enum ip_conntrack_dir dir;
- struct iphdr *iph = skb->nh.iph;
- struct tcphdr *th, _tcph;
- unsigned long timeout;
- unsigned int index;
-
- th = skb_header_pointer(skb, iph->ihl * 4,
- sizeof(_tcph), &_tcph);
- BUG_ON(th == NULL);
-
- write_lock_bh(&tcp_lock);
- old_state = conntrack->proto.tcp.state;
- dir = CTINFO2DIR(ctinfo);
- index = get_conntrack_index(th);
- new_state = tcp_conntracks[dir][index][old_state];
-
- switch (new_state) {
- case TCP_CONNTRACK_IGNORE:
- /* Ignored packets:
- *
- * a) SYN in ORIGINAL
- * b) SYN/ACK in REPLY
- * c) ACK in reply direction after initial SYN in original.
- */
- if (index == TCP_SYNACK_SET
- && conntrack->proto.tcp.last_index == TCP_SYN_SET
- && conntrack->proto.tcp.last_dir != dir
- && ntohl(th->ack_seq) ==
- conntrack->proto.tcp.last_end) {
- /* This SYN/ACK acknowledges a SYN that we earlier
- * ignored as invalid. This means that the client and
- * the server are both in sync, while the firewall is
- * not. We kill this session and block the SYN/ACK so
- * that the client cannot but retransmit its SYN and
- * thus initiate a clean new session.
- */
- write_unlock_bh(&tcp_lock);
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL,
- NULL, "ip_ct_tcp: "
- "killing out of sync session ");
- if (del_timer(&conntrack->timeout))
- conntrack->timeout.function((unsigned long)
- conntrack);
- return -NF_DROP;
- }
- conntrack->proto.tcp.last_index = index;
- conntrack->proto.tcp.last_dir = dir;
- conntrack->proto.tcp.last_seq = ntohl(th->seq);
- conntrack->proto.tcp.last_end =
- segment_seq_plus_len(ntohl(th->seq), skb->len, iph, th);
-
- write_unlock_bh(&tcp_lock);
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: invalid packet ignored ");
- return NF_ACCEPT;
- case TCP_CONNTRACK_MAX:
- /* Invalid packet */
- DEBUGP("ip_ct_tcp: Invalid dir=%i index=%u ostate=%u\n",
- dir, get_conntrack_index(th),
- old_state);
- write_unlock_bh(&tcp_lock);
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_tcp: invalid state ");
- return -NF_ACCEPT;
- case TCP_CONNTRACK_SYN_SENT:
- if (old_state < TCP_CONNTRACK_TIME_WAIT)
- break;
- if ((conntrack->proto.tcp.seen[dir].flags &
- IP_CT_TCP_FLAG_CLOSE_INIT)
- || after(ntohl(th->seq),
- conntrack->proto.tcp.seen[dir].td_end)) {
- /* Attempt to reopen a closed connection.
- * Delete this connection and look up again. */
- write_unlock_bh(&tcp_lock);
- if (del_timer(&conntrack->timeout))
- conntrack->timeout.function((unsigned long)
- conntrack);
- return -NF_REPEAT;
- } else {
- write_unlock_bh(&tcp_lock);
- if (LOG_INVALID(IPPROTO_TCP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL,
- NULL, "ip_ct_tcp: invalid SYN");
- return -NF_ACCEPT;
- }
- case TCP_CONNTRACK_CLOSE:
- if (index == TCP_RST_SET
- && ((test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)
- && conntrack->proto.tcp.last_index == TCP_SYN_SET)
- || (!test_bit(IPS_ASSURED_BIT, &conntrack->status)
- && conntrack->proto.tcp.last_index == TCP_ACK_SET))
- && ntohl(th->ack_seq) == conntrack->proto.tcp.last_end) {
- /* RST sent to invalid SYN or ACK we had let through
- * at a) and c) above:
- *
- * a) SYN was in window then
- * c) we hold a half-open connection.
- *
- * Delete our connection entry.
- * We skip window checking, because packet might ACK
- * segments we ignored. */
- goto in_window;
- }
- /* Just fall through */
- default:
- /* Keep compilers happy. */
- break;
- }
-
- if (!tcp_in_window(&conntrack->proto.tcp, dir, index,
- skb, iph, th)) {
- write_unlock_bh(&tcp_lock);
- return -NF_ACCEPT;
- }
- in_window:
- /* From now on we have got in-window packets */
- conntrack->proto.tcp.last_index = index;
-
- DEBUGP("tcp_conntracks: src=%u.%u.%u.%u:%hu dst=%u.%u.%u.%u:%hu "
- "syn=%i ack=%i fin=%i rst=%i old=%i new=%i\n",
- NIPQUAD(iph->saddr), ntohs(th->source),
- NIPQUAD(iph->daddr), ntohs(th->dest),
- (th->syn ? 1 : 0), (th->ack ? 1 : 0),
- (th->fin ? 1 : 0), (th->rst ? 1 : 0),
- old_state, new_state);
-
- conntrack->proto.tcp.state = new_state;
- if (old_state != new_state
- && (new_state == TCP_CONNTRACK_FIN_WAIT
- || new_state == TCP_CONNTRACK_CLOSE))
- conntrack->proto.tcp.seen[dir].flags |= IP_CT_TCP_FLAG_CLOSE_INIT;
- timeout = conntrack->proto.tcp.retrans >= ip_ct_tcp_max_retrans
- && *tcp_timeouts[new_state] > ip_ct_tcp_timeout_max_retrans
- ? ip_ct_tcp_timeout_max_retrans : *tcp_timeouts[new_state];
- write_unlock_bh(&tcp_lock);
-
- ip_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, skb);
- if (new_state != old_state)
- ip_conntrack_event_cache(IPCT_PROTOINFO, skb);
-
- if (!test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
- /* If only reply is a RST, we can consider ourselves not to
- have an established connection: this is a fairly common
- problem case, so we can delete the conntrack
- immediately. --RR */
- if (th->rst) {
- if (del_timer(&conntrack->timeout))
- conntrack->timeout.function((unsigned long)
- conntrack);
- return NF_ACCEPT;
- }
- } else if (!test_bit(IPS_ASSURED_BIT, &conntrack->status)
- && (old_state == TCP_CONNTRACK_SYN_RECV
- || old_state == TCP_CONNTRACK_ESTABLISHED)
- && new_state == TCP_CONNTRACK_ESTABLISHED) {
- /* Set ASSURED if we see see valid ack in ESTABLISHED
- after SYN_RECV or a valid answer for a picked up
- connection. */
- set_bit(IPS_ASSURED_BIT, &conntrack->status);
- ip_conntrack_event_cache(IPCT_STATUS, skb);
- }
- ip_ct_refresh_acct(conntrack, ctinfo, skb, timeout);
-
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int tcp_new(struct ip_conntrack *conntrack,
- const struct sk_buff *skb)
-{
- enum tcp_conntrack new_state;
- struct iphdr *iph = skb->nh.iph;
- struct tcphdr *th, _tcph;
-#ifdef DEBUGP_VARS
- struct ip_ct_tcp_state *sender = &conntrack->proto.tcp.seen[0];
- struct ip_ct_tcp_state *receiver = &conntrack->proto.tcp.seen[1];
-#endif
-
- th = skb_header_pointer(skb, iph->ihl * 4,
- sizeof(_tcph), &_tcph);
- BUG_ON(th == NULL);
-
- /* Don't need lock here: this conntrack not in circulation yet */
- new_state
- = tcp_conntracks[0][get_conntrack_index(th)]
- [TCP_CONNTRACK_NONE];
-
- /* Invalid: delete conntrack */
- if (new_state >= TCP_CONNTRACK_MAX) {
- DEBUGP("ip_ct_tcp: invalid new deleting.\n");
- return 0;
- }
-
- if (new_state == TCP_CONNTRACK_SYN_SENT) {
- /* SYN packet */
- conntrack->proto.tcp.seen[0].td_end =
- segment_seq_plus_len(ntohl(th->seq), skb->len,
- iph, th);
- conntrack->proto.tcp.seen[0].td_maxwin = ntohs(th->window);
- if (conntrack->proto.tcp.seen[0].td_maxwin == 0)
- conntrack->proto.tcp.seen[0].td_maxwin = 1;
- conntrack->proto.tcp.seen[0].td_maxend =
- conntrack->proto.tcp.seen[0].td_end;
-
- tcp_options(skb, iph, th, &conntrack->proto.tcp.seen[0]);
- conntrack->proto.tcp.seen[1].flags = 0;
- } else if (ip_ct_tcp_loose == 0) {
- /* Don't try to pick up connections. */
- return 0;
- } else {
- /*
- * We are in the middle of a connection,
- * its history is lost for us.
- * Let's try to use the data from the packet.
- */
- conntrack->proto.tcp.seen[0].td_end =
- segment_seq_plus_len(ntohl(th->seq), skb->len,
- iph, th);
- conntrack->proto.tcp.seen[0].td_maxwin = ntohs(th->window);
- if (conntrack->proto.tcp.seen[0].td_maxwin == 0)
- conntrack->proto.tcp.seen[0].td_maxwin = 1;
- conntrack->proto.tcp.seen[0].td_maxend =
- conntrack->proto.tcp.seen[0].td_end +
- conntrack->proto.tcp.seen[0].td_maxwin;
- conntrack->proto.tcp.seen[0].td_scale = 0;
-
- /* We assume SACK and liberal window checking to handle
- * window scaling */
- conntrack->proto.tcp.seen[0].flags =
- conntrack->proto.tcp.seen[1].flags = IP_CT_TCP_FLAG_SACK_PERM |
- IP_CT_TCP_FLAG_BE_LIBERAL;
- }
-
- conntrack->proto.tcp.seen[1].td_end = 0;
- conntrack->proto.tcp.seen[1].td_maxend = 0;
- conntrack->proto.tcp.seen[1].td_maxwin = 1;
- conntrack->proto.tcp.seen[1].td_scale = 0;
-
- /* tcp_packet will set them */
- conntrack->proto.tcp.state = TCP_CONNTRACK_NONE;
- conntrack->proto.tcp.last_index = TCP_NONE_SET;
-
- DEBUGP("tcp_new: sender end=%u maxend=%u maxwin=%u scale=%i "
- "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
- sender->td_end, sender->td_maxend, sender->td_maxwin,
- sender->td_scale,
- receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
- receiver->td_scale);
- return 1;
-}
-
-struct ip_conntrack_protocol ip_conntrack_protocol_tcp =
-{
- .proto = IPPROTO_TCP,
- .name = "tcp",
- .pkt_to_tuple = tcp_pkt_to_tuple,
- .invert_tuple = tcp_invert_tuple,
- .print_tuple = tcp_print_tuple,
- .print_conntrack = tcp_print_conntrack,
- .packet = tcp_packet,
- .new = tcp_new,
- .error = tcp_error,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .to_nfattr = tcp_to_nfattr,
- .from_nfattr = nfattr_to_tcp,
- .tuple_to_nfattr = ip_ct_port_tuple_to_nfattr,
- .nfattr_to_tuple = ip_ct_port_nfattr_to_tuple,
-#endif
-};
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/netfilter.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-#include <linux/seq_file.h>
-#include <net/checksum.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-
-unsigned int ip_ct_udp_timeout __read_mostly = 30*HZ;
-unsigned int ip_ct_udp_timeout_stream __read_mostly = 180*HZ;
-
-static int udp_pkt_to_tuple(const struct sk_buff *skb,
- unsigned int dataoff,
- struct ip_conntrack_tuple *tuple)
-{
- struct udphdr _hdr, *hp;
-
- /* Actually only need first 8 bytes. */
- hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
- if (hp == NULL)
- return 0;
-
- tuple->src.u.udp.port = hp->source;
- tuple->dst.u.udp.port = hp->dest;
-
- return 1;
-}
-
-static int udp_invert_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig)
-{
- tuple->src.u.udp.port = orig->dst.u.udp.port;
- tuple->dst.u.udp.port = orig->src.u.udp.port;
- return 1;
-}
-
-/* Print out the per-protocol part of the tuple. */
-static int udp_print_tuple(struct seq_file *s,
- const struct ip_conntrack_tuple *tuple)
-{
- return seq_printf(s, "sport=%hu dport=%hu ",
- ntohs(tuple->src.u.udp.port),
- ntohs(tuple->dst.u.udp.port));
-}
-
-/* Print out the private part of the conntrack. */
-static int udp_print_conntrack(struct seq_file *s,
- const struct ip_conntrack *conntrack)
-{
- return 0;
-}
-
-/* Returns verdict for packet, and may modify conntracktype */
-static int udp_packet(struct ip_conntrack *conntrack,
- const struct sk_buff *skb,
- enum ip_conntrack_info ctinfo)
-{
- /* If we've seen traffic both ways, this is some kind of UDP
- stream. Extend timeout. */
- if (test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
- ip_ct_refresh_acct(conntrack, ctinfo, skb,
- ip_ct_udp_timeout_stream);
- /* Also, more likely to be important, and not a probe */
- if (!test_and_set_bit(IPS_ASSURED_BIT, &conntrack->status))
- ip_conntrack_event_cache(IPCT_STATUS, skb);
- } else
- ip_ct_refresh_acct(conntrack, ctinfo, skb, ip_ct_udp_timeout);
-
- return NF_ACCEPT;
-}
-
-/* Called when a new connection for this protocol found. */
-static int udp_new(struct ip_conntrack *conntrack, const struct sk_buff *skb)
-{
- return 1;
-}
-
-static int udp_error(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
- unsigned int hooknum)
-{
- struct iphdr *iph = skb->nh.iph;
- unsigned int udplen = skb->len - iph->ihl * 4;
- struct udphdr _hdr, *hdr;
-
- /* Header is too small? */
- hdr = skb_header_pointer(skb, iph->ihl*4, sizeof(_hdr), &_hdr);
- if (hdr == NULL) {
- if (LOG_INVALID(IPPROTO_UDP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_udp: short packet ");
- return -NF_ACCEPT;
- }
-
- /* Truncated/malformed packets */
- if (ntohs(hdr->len) > udplen || ntohs(hdr->len) < sizeof(*hdr)) {
- if (LOG_INVALID(IPPROTO_UDP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_udp: truncated/malformed packet ");
- return -NF_ACCEPT;
- }
-
- /* Packet with no checksum */
- if (!hdr->check)
- return NF_ACCEPT;
-
- /* Checksum invalid? Ignore.
- * We skip checking packets on the outgoing path
- * because the checksum is assumed to be correct.
- * FIXME: Source route IP option packets --RR */
- if (ip_conntrack_checksum && hooknum == NF_IP_PRE_ROUTING &&
- nf_ip_checksum(skb, hooknum, iph->ihl * 4, IPPROTO_UDP)) {
- if (LOG_INVALID(IPPROTO_UDP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "ip_ct_udp: bad UDP checksum ");
- return -NF_ACCEPT;
- }
-
- return NF_ACCEPT;
-}
-
-struct ip_conntrack_protocol ip_conntrack_protocol_udp =
-{
- .proto = IPPROTO_UDP,
- .name = "udp",
- .pkt_to_tuple = udp_pkt_to_tuple,
- .invert_tuple = udp_invert_tuple,
- .print_tuple = udp_print_tuple,
- .print_conntrack = udp_print_conntrack,
- .packet = udp_packet,
- .new = udp_new,
- .error = udp_error,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .tuple_to_nfattr = ip_ct_port_tuple_to_nfattr,
- .nfattr_to_tuple = ip_ct_port_nfattr_to_tuple,
-#endif
-};
+++ /dev/null
-/* SIP extension for IP connection tracking.
- *
- * (C) 2005 by Christian Hentschel <chentschel@arnet.com.ar>
- * based on RR's ip_conntrack_ftp.c and other modules.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/skbuff.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_sip.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Hentschel <chentschel@arnet.com.ar>");
-MODULE_DESCRIPTION("SIP connection tracking helper");
-
-#define MAX_PORTS 8
-static unsigned short ports[MAX_PORTS];
-static int ports_c;
-module_param_array(ports, ushort, &ports_c, 0400);
-MODULE_PARM_DESC(ports, "port numbers of sip servers");
-
-static unsigned int sip_timeout = SIP_TIMEOUT;
-module_param(sip_timeout, uint, 0600);
-MODULE_PARM_DESC(sip_timeout, "timeout for the master SIP session");
-
-unsigned int (*ip_nat_sip_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct,
- const char **dptr);
-EXPORT_SYMBOL_GPL(ip_nat_sip_hook);
-
-unsigned int (*ip_nat_sdp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp,
- const char *dptr);
-EXPORT_SYMBOL_GPL(ip_nat_sdp_hook);
-
-static int digits_len(const char *dptr, const char *limit, int *shift);
-static int epaddr_len(const char *dptr, const char *limit, int *shift);
-static int skp_digits_len(const char *dptr, const char *limit, int *shift);
-static int skp_epaddr_len(const char *dptr, const char *limit, int *shift);
-
-struct sip_header_nfo {
- const char *lname;
- const char *sname;
- const char *ln_str;
- size_t lnlen;
- size_t snlen;
- size_t ln_strlen;
- int case_sensitive;
- int (*match_len)(const char *, const char *, int *);
-};
-
-static struct sip_header_nfo ct_sip_hdrs[] = {
- [POS_REG_REQ_URI] = { /* SIP REGISTER request URI */
- .lname = "sip:",
- .lnlen = sizeof("sip:") - 1,
- .ln_str = ":",
- .ln_strlen = sizeof(":") - 1,
- .match_len = epaddr_len
- },
- [POS_REQ_URI] = { /* SIP request URI */
- .lname = "sip:",
- .lnlen = sizeof("sip:") - 1,
- .ln_str = "@",
- .ln_strlen = sizeof("@") - 1,
- .match_len = epaddr_len
- },
- [POS_FROM] = { /* SIP From header */
- .lname = "From:",
- .lnlen = sizeof("From:") - 1,
- .sname = "\r\nf:",
- .snlen = sizeof("\r\nf:") - 1,
- .ln_str = "sip:",
- .ln_strlen = sizeof("sip:") - 1,
- .match_len = skp_epaddr_len,
- },
- [POS_TO] = { /* SIP To header */
- .lname = "To:",
- .lnlen = sizeof("To:") - 1,
- .sname = "\r\nt:",
- .snlen = sizeof("\r\nt:") - 1,
- .ln_str = "sip:",
- .ln_strlen = sizeof("sip:") - 1,
- .match_len = skp_epaddr_len,
- },
- [POS_VIA] = { /* SIP Via header */
- .lname = "Via:",
- .lnlen = sizeof("Via:") - 1,
- .sname = "\r\nv:",
- .snlen = sizeof("\r\nv:") - 1, /* rfc3261 "\r\n" */
- .ln_str = "UDP ",
- .ln_strlen = sizeof("UDP ") - 1,
- .match_len = epaddr_len,
- },
- [POS_CONTACT] = { /* SIP Contact header */
- .lname = "Contact:",
- .lnlen = sizeof("Contact:") - 1,
- .sname = "\r\nm:",
- .snlen = sizeof("\r\nm:") - 1,
- .ln_str = "sip:",
- .ln_strlen = sizeof("sip:") - 1,
- .match_len = skp_epaddr_len
- },
- [POS_CONTENT] = { /* SIP Content length header */
- .lname = "Content-Length:",
- .lnlen = sizeof("Content-Length:") - 1,
- .sname = "\r\nl:",
- .snlen = sizeof("\r\nl:") - 1,
- .ln_str = ":",
- .ln_strlen = sizeof(":") - 1,
- .match_len = skp_digits_len
- },
- [POS_MEDIA] = { /* SDP media info */
- .case_sensitive = 1,
- .lname = "\nm=",
- .lnlen = sizeof("\nm=") - 1,
- .sname = "\rm=",
- .snlen = sizeof("\rm=") - 1,
- .ln_str = "audio ",
- .ln_strlen = sizeof("audio ") - 1,
- .match_len = digits_len
- },
- [POS_OWNER] = { /* SDP owner address*/
- .case_sensitive = 1,
- .lname = "\no=",
- .lnlen = sizeof("\no=") - 1,
- .sname = "\ro=",
- .snlen = sizeof("\ro=") - 1,
- .ln_str = "IN IP4 ",
- .ln_strlen = sizeof("IN IP4 ") - 1,
- .match_len = epaddr_len
- },
- [POS_CONNECTION] = { /* SDP connection info */
- .case_sensitive = 1,
- .lname = "\nc=",
- .lnlen = sizeof("\nc=") - 1,
- .sname = "\rc=",
- .snlen = sizeof("\rc=") - 1,
- .ln_str = "IN IP4 ",
- .ln_strlen = sizeof("IN IP4 ") - 1,
- .match_len = epaddr_len
- },
- [POS_SDP_HEADER] = { /* SDP version header */
- .case_sensitive = 1,
- .lname = "\nv=",
- .lnlen = sizeof("\nv=") - 1,
- .sname = "\rv=",
- .snlen = sizeof("\rv=") - 1,
- .ln_str = "=",
- .ln_strlen = sizeof("=") - 1,
- .match_len = digits_len
- }
-};
-
-/* get line lenght until first CR or LF seen. */
-int ct_sip_lnlen(const char *line, const char *limit)
-{
- const char *k = line;
-
- while ((line <= limit) && (*line == '\r' || *line == '\n'))
- line++;
-
- while (line <= limit) {
- if (*line == '\r' || *line == '\n')
- break;
- line++;
- }
- return line - k;
-}
-EXPORT_SYMBOL_GPL(ct_sip_lnlen);
-
-/* Linear string search, case sensitive. */
-const char *ct_sip_search(const char *needle, const char *haystack,
- size_t needle_len, size_t haystack_len,
- int case_sensitive)
-{
- const char *limit = haystack + (haystack_len - needle_len);
-
- while (haystack <= limit) {
- if (case_sensitive) {
- if (strncmp(haystack, needle, needle_len) == 0)
- return haystack;
- } else {
- if (strnicmp(haystack, needle, needle_len) == 0)
- return haystack;
- }
- haystack++;
- }
- return NULL;
-}
-EXPORT_SYMBOL_GPL(ct_sip_search);
-
-static int digits_len(const char *dptr, const char *limit, int *shift)
-{
- int len = 0;
- while (dptr <= limit && isdigit(*dptr)) {
- dptr++;
- len++;
- }
- return len;
-}
-
-/* get digits lenght, skiping blank spaces. */
-static int skp_digits_len(const char *dptr, const char *limit, int *shift)
-{
- for (; dptr <= limit && *dptr == ' '; dptr++)
- (*shift)++;
-
- return digits_len(dptr, limit, shift);
-}
-
-/* Simple ipaddr parser.. */
-static int parse_ipaddr(const char *cp, const char **endp,
- __be32 *ipaddr, const char *limit)
-{
- unsigned long int val;
- int i, digit = 0;
-
- for (i = 0, *ipaddr = 0; cp <= limit && i < 4; i++) {
- digit = 0;
- if (!isdigit(*cp))
- break;
-
- val = simple_strtoul(cp, (char **)&cp, 10);
- if (val > 0xFF)
- return -1;
-
- ((u_int8_t *)ipaddr)[i] = val;
- digit = 1;
-
- if (*cp != '.')
- break;
- cp++;
- }
- if (!digit)
- return -1;
-
- if (endp)
- *endp = cp;
-
- return 0;
-}
-
-/* skip ip address. returns it lenght. */
-static int epaddr_len(const char *dptr, const char *limit, int *shift)
-{
- const char *aux = dptr;
- __be32 ip;
-
- if (parse_ipaddr(dptr, &dptr, &ip, limit) < 0) {
- DEBUGP("ip: %s parse failed.!\n", dptr);
- return 0;
- }
-
- /* Port number */
- if (*dptr == ':') {
- dptr++;
- dptr += digits_len(dptr, limit, shift);
- }
- return dptr - aux;
-}
-
-/* get address length, skiping user info. */
-static int skp_epaddr_len(const char *dptr, const char *limit, int *shift)
-{
- int s = *shift;
-
- /* Search for @, but stop at the end of the line.
- * We are inside a sip: URI, so we don't need to worry about
- * continuation lines. */
- while (dptr <= limit &&
- *dptr != '@' && *dptr != '\r' && *dptr != '\n') {
- (*shift)++;
- dptr++;
- }
-
- if (dptr <= limit && *dptr == '@') {
- dptr++;
- (*shift)++;
- } else
- *shift = s;
-
- return epaddr_len(dptr, limit, shift);
-}
-
-/* Returns 0 if not found, -1 error parsing. */
-int ct_sip_get_info(const char *dptr, size_t dlen,
- unsigned int *matchoff,
- unsigned int *matchlen,
- enum sip_header_pos pos)
-{
- struct sip_header_nfo *hnfo = &ct_sip_hdrs[pos];
- const char *limit, *aux, *k = dptr;
- int shift = 0;
-
- limit = dptr + (dlen - hnfo->lnlen);
-
- while (dptr <= limit) {
- if ((strncmp(dptr, hnfo->lname, hnfo->lnlen) != 0) &&
- (hnfo->sname == NULL ||
- strncmp(dptr, hnfo->sname, hnfo->snlen) != 0)) {
- dptr++;
- continue;
- }
- aux = ct_sip_search(hnfo->ln_str, dptr, hnfo->ln_strlen,
- ct_sip_lnlen(dptr, limit),
- hnfo->case_sensitive);
- if (!aux) {
- DEBUGP("'%s' not found in '%s'.\n", hnfo->ln_str,
- hnfo->lname);
- return -1;
- }
- aux += hnfo->ln_strlen;
-
- *matchlen = hnfo->match_len(aux, limit, &shift);
- if (!*matchlen)
- return -1;
-
- *matchoff = (aux - k) + shift;
-
- DEBUGP("%s match succeeded! - len: %u\n", hnfo->lname,
- *matchlen);
- return 1;
- }
- DEBUGP("%s header not found.\n", hnfo->lname);
- return 0;
-}
-EXPORT_SYMBOL_GPL(ct_sip_get_info);
-
-static int set_expected_rtp(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- __be32 ipaddr, u_int16_t port,
- const char *dptr)
-{
- struct ip_conntrack_expect *exp;
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
- int ret;
- typeof(ip_nat_sdp_hook) ip_nat_sdp;
-
- exp = ip_conntrack_expect_alloc(ct);
- if (exp == NULL)
- return NF_DROP;
-
- exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
- exp->tuple.src.u.udp.port = 0;
- exp->tuple.dst.ip = ipaddr;
- exp->tuple.dst.u.udp.port = htons(port);
- exp->tuple.dst.protonum = IPPROTO_UDP;
-
- exp->mask.src.ip = htonl(0xFFFFFFFF);
- exp->mask.src.u.udp.port = 0;
- exp->mask.dst.ip = htonl(0xFFFFFFFF);
- exp->mask.dst.u.udp.port = htons(0xFFFF);
- exp->mask.dst.protonum = 0xFF;
-
- exp->expectfn = NULL;
- exp->flags = 0;
-
- ip_nat_sdp = rcu_dereference(ip_nat_sdp_hook);
- if (ip_nat_sdp)
- ret = ip_nat_sdp(pskb, ctinfo, exp, dptr);
- else {
- if (ip_conntrack_expect_related(exp) != 0)
- ret = NF_DROP;
- else
- ret = NF_ACCEPT;
- }
- ip_conntrack_expect_put(exp);
-
- return ret;
-}
-
-static int sip_help(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- unsigned int dataoff, datalen;
- const char *dptr;
- int ret = NF_ACCEPT;
- int matchoff, matchlen;
- __be32 ipaddr;
- u_int16_t port;
- typeof(ip_nat_sip_hook) ip_nat_sip;
-
- /* No Data ? */
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
- if (dataoff >= (*pskb)->len) {
- DEBUGP("skb->len = %u\n", (*pskb)->len);
- return NF_ACCEPT;
- }
-
- ip_ct_refresh(ct, *pskb, sip_timeout * HZ);
-
- if (!skb_is_nonlinear(*pskb))
- dptr = (*pskb)->data + dataoff;
- else {
- DEBUGP("Copy of skbuff not supported yet.\n");
- goto out;
- }
-
- ip_nat_sip = rcu_dereference(ip_nat_sip_hook);
- if (ip_nat_sip) {
- if (!ip_nat_sip(pskb, ctinfo, ct, &dptr)) {
- ret = NF_DROP;
- goto out;
- }
- }
-
- /* After this point NAT, could have mangled skb, so
- we need to recalculate payload lenght. */
- datalen = (*pskb)->len - dataoff;
-
- if (datalen < (sizeof("SIP/2.0 200") - 1))
- goto out;
-
- /* RTP info only in some SDP pkts */
- if (memcmp(dptr, "INVITE", sizeof("INVITE") - 1) != 0 &&
- memcmp(dptr, "SIP/2.0 200", sizeof("SIP/2.0 200") - 1) != 0) {
- goto out;
- }
- /* Get ip and port address from SDP packet. */
- if (ct_sip_get_info(dptr, datalen, &matchoff, &matchlen,
- POS_CONNECTION) > 0) {
-
- /* We'll drop only if there are parse problems. */
- if (parse_ipaddr(dptr + matchoff, NULL, &ipaddr,
- dptr + datalen) < 0) {
- ret = NF_DROP;
- goto out;
- }
- if (ct_sip_get_info(dptr, datalen, &matchoff, &matchlen,
- POS_MEDIA) > 0) {
-
- port = simple_strtoul(dptr + matchoff, NULL, 10);
- if (port < 1024) {
- ret = NF_DROP;
- goto out;
- }
- ret = set_expected_rtp(pskb, ct, ctinfo,
- ipaddr, port, dptr);
- }
- }
-out:
- return ret;
-}
-
-static struct ip_conntrack_helper sip[MAX_PORTS];
-static char sip_names[MAX_PORTS][10];
-
-static void fini(void)
-{
- int i;
- for (i = 0; i < ports_c; i++) {
- DEBUGP("unregistering helper for port %d\n", ports[i]);
- ip_conntrack_helper_unregister(&sip[i]);
- }
-}
-
-static int __init init(void)
-{
- int i, ret;
- char *tmpname;
-
- if (ports_c == 0)
- ports[ports_c++] = SIP_PORT;
-
- for (i = 0; i < ports_c; i++) {
- /* Create helper structure */
- memset(&sip[i], 0, sizeof(struct ip_conntrack_helper));
-
- sip[i].tuple.dst.protonum = IPPROTO_UDP;
- sip[i].tuple.src.u.udp.port = htons(ports[i]);
- sip[i].mask.src.u.udp.port = htons(0xFFFF);
- sip[i].mask.dst.protonum = 0xFF;
- sip[i].max_expected = 2;
- sip[i].timeout = 3 * 60; /* 3 minutes */
- sip[i].me = THIS_MODULE;
- sip[i].help = sip_help;
-
- tmpname = &sip_names[i][0];
- if (ports[i] == SIP_PORT)
- sprintf(tmpname, "sip");
- else
- sprintf(tmpname, "sip-%d", i);
- sip[i].name = tmpname;
-
- DEBUGP("port #%d: %d\n", i, ports[i]);
-
- ret = ip_conntrack_helper_register(&sip[i]);
- if (ret) {
- printk("ERROR registering helper for port %d\n",
- ports[i]);
- fini();
- return ret;
- }
- }
- return 0;
-}
-
-module_init(init);
-module_exit(fini);
+++ /dev/null
-/* This file contains all the functions required for the standalone
- ip_conntrack module.
-
- These are not required by the compatibility layer.
-*/
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2005 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/ip.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/percpu.h>
-#ifdef CONFIG_SYSCTL
-#include <linux/sysctl.h>
-#endif
-#include <net/checksum.h>
-#include <net/ip.h>
-#include <net/route.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-MODULE_LICENSE("GPL");
-
-extern atomic_t ip_conntrack_count;
-DECLARE_PER_CPU(struct ip_conntrack_stat, ip_conntrack_stat);
-
-static int kill_proto(struct ip_conntrack *i, void *data)
-{
- return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum ==
- *((u_int8_t *) data));
-}
-
-#ifdef CONFIG_PROC_FS
-static int
-print_tuple(struct seq_file *s, const struct ip_conntrack_tuple *tuple,
- struct ip_conntrack_protocol *proto)
-{
- seq_printf(s, "src=%u.%u.%u.%u dst=%u.%u.%u.%u ",
- NIPQUAD(tuple->src.ip), NIPQUAD(tuple->dst.ip));
- return proto->print_tuple(s, tuple);
-}
-
-#ifdef CONFIG_IP_NF_CT_ACCT
-static unsigned int
-seq_print_counters(struct seq_file *s,
- const struct ip_conntrack_counter *counter)
-{
- return seq_printf(s, "packets=%llu bytes=%llu ",
- (unsigned long long)counter->packets,
- (unsigned long long)counter->bytes);
-}
-#else
-#define seq_print_counters(x, y) 0
-#endif
-
-struct ct_iter_state {
- unsigned int bucket;
-};
-
-static struct list_head *ct_get_first(struct seq_file *seq)
-{
- struct ct_iter_state *st = seq->private;
-
- for (st->bucket = 0;
- st->bucket < ip_conntrack_htable_size;
- st->bucket++) {
- if (!list_empty(&ip_conntrack_hash[st->bucket]))
- return ip_conntrack_hash[st->bucket].next;
- }
- return NULL;
-}
-
-static struct list_head *ct_get_next(struct seq_file *seq, struct list_head *head)
-{
- struct ct_iter_state *st = seq->private;
-
- head = head->next;
- while (head == &ip_conntrack_hash[st->bucket]) {
- if (++st->bucket >= ip_conntrack_htable_size)
- return NULL;
- head = ip_conntrack_hash[st->bucket].next;
- }
- return head;
-}
-
-static struct list_head *ct_get_idx(struct seq_file *seq, loff_t pos)
-{
- struct list_head *head = ct_get_first(seq);
-
- if (head)
- while (pos && (head = ct_get_next(seq, head)))
- pos--;
- return pos ? NULL : head;
-}
-
-static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
-{
- read_lock_bh(&ip_conntrack_lock);
- return ct_get_idx(seq, *pos);
-}
-
-static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
-{
- (*pos)++;
- return ct_get_next(s, v);
-}
-
-static void ct_seq_stop(struct seq_file *s, void *v)
-{
- read_unlock_bh(&ip_conntrack_lock);
-}
-
-static int ct_seq_show(struct seq_file *s, void *v)
-{
- const struct ip_conntrack_tuple_hash *hash = v;
- const struct ip_conntrack *conntrack = tuplehash_to_ctrack(hash);
- struct ip_conntrack_protocol *proto;
-
- IP_NF_ASSERT(conntrack);
-
- /* we only want to print DIR_ORIGINAL */
- if (DIRECTION(hash))
- return 0;
-
- proto = __ip_conntrack_proto_find(conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum);
- IP_NF_ASSERT(proto);
-
- if (seq_printf(s, "%-8s %u %ld ",
- proto->name,
- conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
- timer_pending(&conntrack->timeout)
- ? (long)(conntrack->timeout.expires - jiffies)/HZ
- : 0) != 0)
- return -ENOSPC;
-
- if (proto->print_conntrack(s, conntrack))
- return -ENOSPC;
-
- if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
- proto))
- return -ENOSPC;
-
- if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_ORIGINAL]))
- return -ENOSPC;
-
- if (!(test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)))
- if (seq_printf(s, "[UNREPLIED] "))
- return -ENOSPC;
-
- if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple,
- proto))
- return -ENOSPC;
-
- if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_REPLY]))
- return -ENOSPC;
-
- if (test_bit(IPS_ASSURED_BIT, &conntrack->status))
- if (seq_printf(s, "[ASSURED] "))
- return -ENOSPC;
-
-#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
- if (seq_printf(s, "mark=%u ", conntrack->mark))
- return -ENOSPC;
-#endif
-
-#ifdef CONFIG_IP_NF_CONNTRACK_SECMARK
- if (seq_printf(s, "secmark=%u ", conntrack->secmark))
- return -ENOSPC;
-#endif
-
- if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use)))
- return -ENOSPC;
-
- return 0;
-}
-
-static struct seq_operations ct_seq_ops = {
- .start = ct_seq_start,
- .next = ct_seq_next,
- .stop = ct_seq_stop,
- .show = ct_seq_show
-};
-
-static int ct_open(struct inode *inode, struct file *file)
-{
- struct seq_file *seq;
- struct ct_iter_state *st;
- int ret;
-
- st = kmalloc(sizeof(struct ct_iter_state), GFP_KERNEL);
- if (st == NULL)
- return -ENOMEM;
- ret = seq_open(file, &ct_seq_ops);
- if (ret)
- goto out_free;
- seq = file->private_data;
- seq->private = st;
- memset(st, 0, sizeof(struct ct_iter_state));
- return ret;
-out_free:
- kfree(st);
- return ret;
-}
-
-static const struct file_operations ct_file_ops = {
- .owner = THIS_MODULE,
- .open = ct_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
-/* expects */
-static void *exp_seq_start(struct seq_file *s, loff_t *pos)
-{
- struct list_head *e = &ip_conntrack_expect_list;
- loff_t i;
-
- /* strange seq_file api calls stop even if we fail,
- * thus we need to grab lock since stop unlocks */
- read_lock_bh(&ip_conntrack_lock);
-
- if (list_empty(e))
- return NULL;
-
- for (i = 0; i <= *pos; i++) {
- e = e->next;
- if (e == &ip_conntrack_expect_list)
- return NULL;
- }
- return e;
-}
-
-static void *exp_seq_next(struct seq_file *s, void *v, loff_t *pos)
-{
- struct list_head *e = v;
-
- ++*pos;
- e = e->next;
-
- if (e == &ip_conntrack_expect_list)
- return NULL;
-
- return e;
-}
-
-static void exp_seq_stop(struct seq_file *s, void *v)
-{
- read_unlock_bh(&ip_conntrack_lock);
-}
-
-static int exp_seq_show(struct seq_file *s, void *v)
-{
- struct ip_conntrack_expect *expect = v;
-
- if (expect->timeout.function)
- seq_printf(s, "%ld ", timer_pending(&expect->timeout)
- ? (long)(expect->timeout.expires - jiffies)/HZ : 0);
- else
- seq_printf(s, "- ");
-
- seq_printf(s, "proto=%u ", expect->tuple.dst.protonum);
-
- print_tuple(s, &expect->tuple,
- __ip_conntrack_proto_find(expect->tuple.dst.protonum));
- return seq_putc(s, '\n');
-}
-
-static struct seq_operations exp_seq_ops = {
- .start = exp_seq_start,
- .next = exp_seq_next,
- .stop = exp_seq_stop,
- .show = exp_seq_show
-};
-
-static int exp_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &exp_seq_ops);
-}
-
-static const struct file_operations exp_file_ops = {
- .owner = THIS_MODULE,
- .open = exp_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release
-};
-
-static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
-{
- int cpu;
-
- if (*pos == 0)
- return SEQ_START_TOKEN;
-
- for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
- if (!cpu_possible(cpu))
- continue;
- *pos = cpu+1;
- return &per_cpu(ip_conntrack_stat, cpu);
- }
-
- return NULL;
-}
-
-static void *ct_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- int cpu;
-
- for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
- if (!cpu_possible(cpu))
- continue;
- *pos = cpu+1;
- return &per_cpu(ip_conntrack_stat, cpu);
- }
-
- return NULL;
-}
-
-static void ct_cpu_seq_stop(struct seq_file *seq, void *v)
-{
-}
-
-static int ct_cpu_seq_show(struct seq_file *seq, void *v)
-{
- unsigned int nr_conntracks = atomic_read(&ip_conntrack_count);
- struct ip_conntrack_stat *st = v;
-
- if (v == SEQ_START_TOKEN) {
- seq_printf(seq, "entries searched found new invalid ignore delete delete_list insert insert_failed drop early_drop icmp_error expect_new expect_create expect_delete\n");
- return 0;
- }
-
- seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x "
- "%08x %08x %08x %08x %08x %08x %08x %08x \n",
- nr_conntracks,
- st->searched,
- st->found,
- st->new,
- st->invalid,
- st->ignore,
- st->delete,
- st->delete_list,
- st->insert,
- st->insert_failed,
- st->drop,
- st->early_drop,
- st->error,
-
- st->expect_new,
- st->expect_create,
- st->expect_delete
- );
- return 0;
-}
-
-static struct seq_operations ct_cpu_seq_ops = {
- .start = ct_cpu_seq_start,
- .next = ct_cpu_seq_next,
- .stop = ct_cpu_seq_stop,
- .show = ct_cpu_seq_show,
-};
-
-static int ct_cpu_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &ct_cpu_seq_ops);
-}
-
-static const struct file_operations ct_cpu_seq_fops = {
- .owner = THIS_MODULE,
- .open = ct_cpu_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-#endif
-
-static unsigned int ip_confirm(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- /* We've seen it coming out the other side: confirm it */
- return ip_conntrack_confirm(pskb);
-}
-
-static unsigned int ip_conntrack_help(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
-
- /* This is where we call the helper: as the packet goes out. */
- ct = ip_conntrack_get(*pskb, &ctinfo);
- if (ct && ct->helper && ctinfo != IP_CT_RELATED + IP_CT_IS_REPLY) {
- unsigned int ret;
- ret = ct->helper->help(pskb, ct, ctinfo);
- if (ret != NF_ACCEPT)
- return ret;
- }
- return NF_ACCEPT;
-}
-
-static unsigned int ip_conntrack_defrag(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
-#if !defined(CONFIG_IP_NF_NAT) && !defined(CONFIG_IP_NF_NAT_MODULE)
- /* Previously seen (loopback)? Ignore. Do this before
- fragment check. */
- if ((*pskb)->nfct)
- return NF_ACCEPT;
-#endif
-
- /* Gather fragments. */
- if ((*pskb)->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
- *pskb = ip_ct_gather_frags(*pskb,
- hooknum == NF_IP_PRE_ROUTING ?
- IP_DEFRAG_CONNTRACK_IN :
- IP_DEFRAG_CONNTRACK_OUT);
- if (!*pskb)
- return NF_STOLEN;
- }
- return NF_ACCEPT;
-}
-
-static unsigned int ip_conntrack_local(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- /* root is playing with raw sockets. */
- if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr)) {
- if (net_ratelimit())
- printk("ipt_hook: happy cracking.\n");
- return NF_ACCEPT;
- }
- return ip_conntrack_in(hooknum, pskb, in, out, okfn);
-}
-
-/* Connection tracking may drop packets, but never alters them, so
- make it the first hook. */
-static struct nf_hook_ops ip_conntrack_ops[] = {
- {
- .hook = ip_conntrack_defrag,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_PRE_ROUTING,
- .priority = NF_IP_PRI_CONNTRACK_DEFRAG,
- },
- {
- .hook = ip_conntrack_in,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_PRE_ROUTING,
- .priority = NF_IP_PRI_CONNTRACK,
- },
- {
- .hook = ip_conntrack_defrag,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_OUT,
- .priority = NF_IP_PRI_CONNTRACK_DEFRAG,
- },
- {
- .hook = ip_conntrack_local,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_OUT,
- .priority = NF_IP_PRI_CONNTRACK,
- },
- {
- .hook = ip_conntrack_help,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_POST_ROUTING,
- .priority = NF_IP_PRI_CONNTRACK_HELPER,
- },
- {
- .hook = ip_conntrack_help,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_IN,
- .priority = NF_IP_PRI_CONNTRACK_HELPER,
- },
- {
- .hook = ip_confirm,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_POST_ROUTING,
- .priority = NF_IP_PRI_CONNTRACK_CONFIRM,
- },
- {
- .hook = ip_confirm,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_IN,
- .priority = NF_IP_PRI_CONNTRACK_CONFIRM,
- },
-};
-
-/* Sysctl support */
-
-int ip_conntrack_checksum __read_mostly = 1;
-
-#ifdef CONFIG_SYSCTL
-
-/* From ip_conntrack_core.c */
-extern int ip_conntrack_max;
-extern unsigned int ip_conntrack_htable_size;
-
-/* From ip_conntrack_proto_tcp.c */
-extern unsigned int ip_ct_tcp_timeout_syn_sent;
-extern unsigned int ip_ct_tcp_timeout_syn_recv;
-extern unsigned int ip_ct_tcp_timeout_established;
-extern unsigned int ip_ct_tcp_timeout_fin_wait;
-extern unsigned int ip_ct_tcp_timeout_close_wait;
-extern unsigned int ip_ct_tcp_timeout_last_ack;
-extern unsigned int ip_ct_tcp_timeout_time_wait;
-extern unsigned int ip_ct_tcp_timeout_close;
-extern unsigned int ip_ct_tcp_timeout_max_retrans;
-extern int ip_ct_tcp_loose;
-extern int ip_ct_tcp_be_liberal;
-extern int ip_ct_tcp_max_retrans;
-
-/* From ip_conntrack_proto_udp.c */
-extern unsigned int ip_ct_udp_timeout;
-extern unsigned int ip_ct_udp_timeout_stream;
-
-/* From ip_conntrack_proto_icmp.c */
-extern unsigned int ip_ct_icmp_timeout;
-
-/* From ip_conntrack_proto_generic.c */
-extern unsigned int ip_ct_generic_timeout;
-
-/* Log invalid packets of a given protocol */
-static int log_invalid_proto_min = 0;
-static int log_invalid_proto_max = 255;
-
-static struct ctl_table_header *ip_ct_sysctl_header;
-
-static ctl_table ip_ct_sysctl_table[] = {
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_MAX,
- .procname = "ip_conntrack_max",
- .data = &ip_conntrack_max,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_COUNT,
- .procname = "ip_conntrack_count",
- .data = &ip_conntrack_count,
- .maxlen = sizeof(int),
- .mode = 0444,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_BUCKETS,
- .procname = "ip_conntrack_buckets",
- .data = &ip_conntrack_htable_size,
- .maxlen = sizeof(unsigned int),
- .mode = 0444,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_CHECKSUM,
- .procname = "ip_conntrack_checksum",
- .data = &ip_conntrack_checksum,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT,
- .procname = "ip_conntrack_tcp_timeout_syn_sent",
- .data = &ip_ct_tcp_timeout_syn_sent,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV,
- .procname = "ip_conntrack_tcp_timeout_syn_recv",
- .data = &ip_ct_tcp_timeout_syn_recv,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED,
- .procname = "ip_conntrack_tcp_timeout_established",
- .data = &ip_ct_tcp_timeout_established,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT,
- .procname = "ip_conntrack_tcp_timeout_fin_wait",
- .data = &ip_ct_tcp_timeout_fin_wait,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT,
- .procname = "ip_conntrack_tcp_timeout_close_wait",
- .data = &ip_ct_tcp_timeout_close_wait,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK,
- .procname = "ip_conntrack_tcp_timeout_last_ack",
- .data = &ip_ct_tcp_timeout_last_ack,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT,
- .procname = "ip_conntrack_tcp_timeout_time_wait",
- .data = &ip_ct_tcp_timeout_time_wait,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE,
- .procname = "ip_conntrack_tcp_timeout_close",
- .data = &ip_ct_tcp_timeout_close,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT,
- .procname = "ip_conntrack_udp_timeout",
- .data = &ip_ct_udp_timeout,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM,
- .procname = "ip_conntrack_udp_timeout_stream",
- .data = &ip_ct_udp_timeout_stream,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT,
- .procname = "ip_conntrack_icmp_timeout",
- .data = &ip_ct_icmp_timeout,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT,
- .procname = "ip_conntrack_generic_timeout",
- .data = &ip_ct_generic_timeout,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_LOG_INVALID,
- .procname = "ip_conntrack_log_invalid",
- .data = &ip_ct_log_invalid,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &log_invalid_proto_min,
- .extra2 = &log_invalid_proto_max,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS,
- .procname = "ip_conntrack_tcp_timeout_max_retrans",
- .data = &ip_ct_tcp_timeout_max_retrans,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_LOOSE,
- .procname = "ip_conntrack_tcp_loose",
- .data = &ip_ct_tcp_loose,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL,
- .procname = "ip_conntrack_tcp_be_liberal",
- .data = &ip_ct_tcp_be_liberal,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- {
- .ctl_name = NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS,
- .procname = "ip_conntrack_tcp_max_retrans",
- .data = &ip_ct_tcp_max_retrans,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
- { .ctl_name = 0 }
-};
-
-#define NET_IP_CONNTRACK_MAX 2089
-
-static ctl_table ip_ct_netfilter_table[] = {
- {
- .ctl_name = NET_IPV4_NETFILTER,
- .procname = "netfilter",
- .mode = 0555,
- .child = ip_ct_sysctl_table,
- },
- {
- .ctl_name = NET_IP_CONNTRACK_MAX,
- .procname = "ip_conntrack_max",
- .data = &ip_conntrack_max,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ip_ct_ipv4_table[] = {
- {
- .ctl_name = NET_IPV4,
- .procname = "ipv4",
- .mode = 0555,
- .child = ip_ct_netfilter_table,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ip_ct_net_table[] = {
- {
- .ctl_name = CTL_NET,
- .procname = "net",
- .mode = 0555,
- .child = ip_ct_ipv4_table,
- },
- { .ctl_name = 0 }
-};
-
-EXPORT_SYMBOL(ip_ct_log_invalid);
-#endif /* CONFIG_SYSCTL */
-
-/* FIXME: Allow NULL functions and sub in pointers to generic for
- them. --RR */
-int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
-{
- int ret = 0;
-
- write_lock_bh(&ip_conntrack_lock);
- if (ip_ct_protos[proto->proto] != &ip_conntrack_generic_protocol) {
- ret = -EBUSY;
- goto out;
- }
- rcu_assign_pointer(ip_ct_protos[proto->proto], proto);
- out:
- write_unlock_bh(&ip_conntrack_lock);
- return ret;
-}
-
-void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
-{
- write_lock_bh(&ip_conntrack_lock);
- rcu_assign_pointer(ip_ct_protos[proto->proto],
- &ip_conntrack_generic_protocol);
- write_unlock_bh(&ip_conntrack_lock);
- synchronize_rcu();
-
- /* Remove all contrack entries for this protocol */
- ip_ct_iterate_cleanup(kill_proto, &proto->proto);
-}
-
-static int __init ip_conntrack_standalone_init(void)
-{
-#ifdef CONFIG_PROC_FS
- struct proc_dir_entry *proc, *proc_exp, *proc_stat;
-#endif
- int ret = 0;
-
- ret = ip_conntrack_init();
- if (ret < 0)
- return ret;
-
-#ifdef CONFIG_PROC_FS
- ret = -ENOMEM;
- proc = proc_net_fops_create("ip_conntrack", 0440, &ct_file_ops);
- if (!proc) goto cleanup_init;
-
- proc_exp = proc_net_fops_create("ip_conntrack_expect", 0440,
- &exp_file_ops);
- if (!proc_exp) goto cleanup_proc;
-
- proc_stat = create_proc_entry("ip_conntrack", S_IRUGO, proc_net_stat);
- if (!proc_stat)
- goto cleanup_proc_exp;
-
- proc_stat->proc_fops = &ct_cpu_seq_fops;
- proc_stat->owner = THIS_MODULE;
-#endif
-
- ret = nf_register_hooks(ip_conntrack_ops, ARRAY_SIZE(ip_conntrack_ops));
- if (ret < 0) {
- printk("ip_conntrack: can't register hooks.\n");
- goto cleanup_proc_stat;
- }
-#ifdef CONFIG_SYSCTL
- ip_ct_sysctl_header = register_sysctl_table(ip_ct_net_table);
- if (ip_ct_sysctl_header == NULL) {
- printk("ip_conntrack: can't register to sysctl.\n");
- ret = -ENOMEM;
- goto cleanup_hooks;
- }
-#endif
- return ret;
-
-#ifdef CONFIG_SYSCTL
- cleanup_hooks:
- nf_unregister_hooks(ip_conntrack_ops, ARRAY_SIZE(ip_conntrack_ops));
-#endif
- cleanup_proc_stat:
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("ip_conntrack", proc_net_stat);
- cleanup_proc_exp:
- proc_net_remove("ip_conntrack_expect");
- cleanup_proc:
- proc_net_remove("ip_conntrack");
- cleanup_init:
-#endif /* CONFIG_PROC_FS */
- ip_conntrack_cleanup();
- return ret;
-}
-
-static void __exit ip_conntrack_standalone_fini(void)
-{
- synchronize_net();
-#ifdef CONFIG_SYSCTL
- unregister_sysctl_table(ip_ct_sysctl_header);
-#endif
- nf_unregister_hooks(ip_conntrack_ops, ARRAY_SIZE(ip_conntrack_ops));
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("ip_conntrack", proc_net_stat);
- proc_net_remove("ip_conntrack_expect");
- proc_net_remove("ip_conntrack");
-#endif /* CONFIG_PROC_FS */
- ip_conntrack_cleanup();
-}
-
-module_init(ip_conntrack_standalone_init);
-module_exit(ip_conntrack_standalone_fini);
-
-/* Some modules need us, but don't depend directly on any symbol.
- They should call this. */
-void need_conntrack(void)
-{
-}
-
-#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-EXPORT_SYMBOL_GPL(ip_conntrack_chain);
-EXPORT_SYMBOL_GPL(ip_conntrack_expect_chain);
-EXPORT_SYMBOL_GPL(ip_conntrack_register_notifier);
-EXPORT_SYMBOL_GPL(ip_conntrack_unregister_notifier);
-EXPORT_SYMBOL_GPL(__ip_ct_event_cache_init);
-EXPORT_PER_CPU_SYMBOL_GPL(ip_conntrack_ecache);
-#endif
-EXPORT_SYMBOL(ip_conntrack_protocol_register);
-EXPORT_SYMBOL(ip_conntrack_protocol_unregister);
-EXPORT_SYMBOL(ip_ct_get_tuple);
-EXPORT_SYMBOL(invert_tuplepr);
-EXPORT_SYMBOL(ip_conntrack_alter_reply);
-EXPORT_SYMBOL(ip_conntrack_destroyed);
-EXPORT_SYMBOL(need_conntrack);
-EXPORT_SYMBOL(ip_conntrack_helper_register);
-EXPORT_SYMBOL(ip_conntrack_helper_unregister);
-EXPORT_SYMBOL(ip_ct_iterate_cleanup);
-EXPORT_SYMBOL(__ip_ct_refresh_acct);
-
-EXPORT_SYMBOL(ip_conntrack_expect_alloc);
-EXPORT_SYMBOL(ip_conntrack_expect_put);
-EXPORT_SYMBOL_GPL(__ip_conntrack_expect_find);
-EXPORT_SYMBOL_GPL(ip_conntrack_expect_find_get);
-EXPORT_SYMBOL(ip_conntrack_expect_related);
-EXPORT_SYMBOL(ip_conntrack_unexpect_related);
-EXPORT_SYMBOL_GPL(ip_conntrack_expect_list);
-EXPORT_SYMBOL_GPL(ip_ct_unlink_expect);
-
-EXPORT_SYMBOL(ip_conntrack_tuple_taken);
-EXPORT_SYMBOL(ip_ct_gather_frags);
-EXPORT_SYMBOL(ip_conntrack_htable_size);
-EXPORT_SYMBOL(ip_conntrack_lock);
-EXPORT_SYMBOL(ip_conntrack_hash);
-EXPORT_SYMBOL(ip_conntrack_untracked);
-EXPORT_SYMBOL_GPL(ip_conntrack_find_get);
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-EXPORT_SYMBOL(ip_conntrack_tcp_update);
-#endif
-
-EXPORT_SYMBOL_GPL(ip_conntrack_flush);
-EXPORT_SYMBOL_GPL(__ip_conntrack_find);
-
-EXPORT_SYMBOL_GPL(ip_conntrack_alloc);
-EXPORT_SYMBOL_GPL(ip_conntrack_free);
-EXPORT_SYMBOL_GPL(ip_conntrack_hash_insert);
-
-EXPORT_SYMBOL_GPL(ip_ct_remove_expectations);
-
-EXPORT_SYMBOL_GPL(ip_conntrack_helper_find_get);
-EXPORT_SYMBOL_GPL(ip_conntrack_helper_put);
-EXPORT_SYMBOL_GPL(__ip_conntrack_helper_find_byname);
-
-EXPORT_SYMBOL_GPL(ip_conntrack_proto_find_get);
-EXPORT_SYMBOL_GPL(ip_conntrack_proto_put);
-EXPORT_SYMBOL_GPL(__ip_conntrack_proto_find);
-EXPORT_SYMBOL_GPL(ip_conntrack_checksum);
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
-EXPORT_SYMBOL_GPL(ip_ct_port_tuple_to_nfattr);
-EXPORT_SYMBOL_GPL(ip_ct_port_nfattr_to_tuple);
-#endif
+++ /dev/null
-/* (C) 2001-2002 Magnus Boden <mb@ozaba.mine.nu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Version: 0.0.7
- *
- * Thu 21 Mar 2002 Harald Welte <laforge@gnumonks.org>
- * - port to newnat API
- *
- */
-
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tftp.h>
-#include <linux/moduleparam.h>
-
-MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
-MODULE_DESCRIPTION("tftp connection tracking helper");
-MODULE_LICENSE("GPL");
-
-#define MAX_PORTS 8
-static unsigned short ports[MAX_PORTS];
-static int ports_c;
-module_param_array(ports, ushort, &ports_c, 0400);
-MODULE_PARM_DESC(ports, "port numbers of tftp servers");
-
-#if 0
-#define DEBUGP(format, args...) printk("%s:%s:" format, \
- __FILE__, __FUNCTION__ , ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-unsigned int (*ip_nat_tftp_hook)(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp);
-EXPORT_SYMBOL_GPL(ip_nat_tftp_hook);
-
-static int tftp_help(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- struct tftphdr _tftph, *tfh;
- struct ip_conntrack_expect *exp;
- unsigned int ret = NF_ACCEPT;
- typeof(ip_nat_tftp_hook) ip_nat_tftp;
-
- tfh = skb_header_pointer(*pskb,
- (*pskb)->nh.iph->ihl*4+sizeof(struct udphdr),
- sizeof(_tftph), &_tftph);
- if (tfh == NULL)
- return NF_ACCEPT;
-
- switch (ntohs(tfh->opcode)) {
- /* RRQ and WRQ works the same way */
- case TFTP_OPCODE_READ:
- case TFTP_OPCODE_WRITE:
- DEBUGP("");
- DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
- DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-
- exp = ip_conntrack_expect_alloc(ct);
- if (exp == NULL)
- return NF_DROP;
-
- exp->tuple = ct->tuplehash[IP_CT_DIR_REPLY].tuple;
- exp->mask.src.ip = htonl(0xffffffff);
- exp->mask.src.u.udp.port = 0;
- exp->mask.dst.ip = htonl(0xffffffff);
- exp->mask.dst.u.udp.port = htons(0xffff);
- exp->mask.dst.protonum = 0xff;
- exp->expectfn = NULL;
- exp->flags = 0;
-
- DEBUGP("expect: ");
- DUMP_TUPLE(&exp->tuple);
- DUMP_TUPLE(&exp->mask);
- ip_nat_tftp = rcu_dereference(ip_nat_tftp_hook);
- if (ip_nat_tftp)
- ret = ip_nat_tftp(pskb, ctinfo, exp);
- else if (ip_conntrack_expect_related(exp) != 0)
- ret = NF_DROP;
- ip_conntrack_expect_put(exp);
- break;
- case TFTP_OPCODE_DATA:
- case TFTP_OPCODE_ACK:
- DEBUGP("Data/ACK opcode\n");
- break;
- case TFTP_OPCODE_ERROR:
- DEBUGP("Error opcode\n");
- break;
- default:
- DEBUGP("Unknown opcode\n");
- }
- return NF_ACCEPT;
-}
-
-static struct ip_conntrack_helper tftp[MAX_PORTS];
-static char tftp_names[MAX_PORTS][sizeof("tftp-65535")];
-
-static void ip_conntrack_tftp_fini(void)
-{
- int i;
-
- for (i = 0 ; i < ports_c; i++) {
- DEBUGP("unregistering helper for port %d\n",
- ports[i]);
- ip_conntrack_helper_unregister(&tftp[i]);
- }
-}
-
-static int __init ip_conntrack_tftp_init(void)
-{
- int i, ret;
- char *tmpname;
-
- if (ports_c == 0)
- ports[ports_c++] = TFTP_PORT;
-
- for (i = 0; i < ports_c; i++) {
- /* Create helper structure */
- memset(&tftp[i], 0, sizeof(struct ip_conntrack_helper));
-
- tftp[i].tuple.dst.protonum = IPPROTO_UDP;
- tftp[i].tuple.src.u.udp.port = htons(ports[i]);
- tftp[i].mask.dst.protonum = 0xFF;
- tftp[i].mask.src.u.udp.port = htons(0xFFFF);
- tftp[i].max_expected = 1;
- tftp[i].timeout = 5 * 60; /* 5 minutes */
- tftp[i].me = THIS_MODULE;
- tftp[i].help = tftp_help;
-
- tmpname = &tftp_names[i][0];
- if (ports[i] == TFTP_PORT)
- sprintf(tmpname, "tftp");
- else
- sprintf(tmpname, "tftp-%d", i);
- tftp[i].name = tmpname;
-
- DEBUGP("port #%d: %d\n", i, ports[i]);
-
- ret=ip_conntrack_helper_register(&tftp[i]);
- if (ret) {
- printk("ERROR registering helper for port %d\n",
- ports[i]);
- ip_conntrack_tftp_fini();
- return(ret);
- }
- }
- return(0);
-}
-
-module_init(ip_conntrack_tftp_init);
-module_exit(ip_conntrack_tftp_fini);
+++ /dev/null
-/* Amanda extension for TCP NAT alteration.
- * (C) 2002 by Brian J. Murrell <netfilter@interlinx.bc.ca>
- * based on a copy of HW's ip_nat_irc.c as well as other modules
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Module load syntax:
- * insmod ip_nat_amanda.o
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netfilter.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-#include <net/tcp.h>
-#include <net/udp.h>
-
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
-
-
-MODULE_AUTHOR("Brian J. Murrell <netfilter@interlinx.bc.ca>");
-MODULE_DESCRIPTION("Amanda NAT helper");
-MODULE_LICENSE("GPL");
-
-static unsigned int help(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp)
-{
- char buffer[sizeof("65535")];
- u_int16_t port;
- unsigned int ret;
-
- /* Connection comes from client. */
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->dir = IP_CT_DIR_ORIGINAL;
-
- /* When you see the packet, we need to NAT it the same as the
- * this one (ie. same IP: it will be TCP and master is UDP). */
- exp->expectfn = ip_nat_follow_master;
-
- /* Try to get same port: if not, try to change it. */
- for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) {
- exp->tuple.dst.u.tcp.port = htons(port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (port == 0)
- return NF_DROP;
-
- sprintf(buffer, "%u", port);
- ret = ip_nat_mangle_udp_packet(pskb, exp->master, ctinfo,
- matchoff, matchlen,
- buffer, strlen(buffer));
- if (ret != NF_ACCEPT)
- ip_conntrack_unexpect_related(exp);
- return ret;
-}
-
-static void __exit ip_nat_amanda_fini(void)
-{
- rcu_assign_pointer(ip_nat_amanda_hook, NULL);
- synchronize_rcu();
-}
-
-static int __init ip_nat_amanda_init(void)
-{
- BUG_ON(rcu_dereference(ip_nat_amanda_hook));
- rcu_assign_pointer(ip_nat_amanda_hook, help);
- return 0;
-}
-
-module_init(ip_nat_amanda_init);
-module_exit(ip_nat_amanda_fini);
+++ /dev/null
-/* NAT for netfilter; shared with compatibility layer. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/skbuff.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/vmalloc.h>
-#include <net/checksum.h>
-#include <net/icmp.h>
-#include <net/ip.h>
-#include <net/tcp.h> /* For tcp_prot in getorigdst */
-#include <linux/icmp.h>
-#include <linux/udp.h>
-#include <linux/jhash.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-DEFINE_RWLOCK(ip_nat_lock);
-
-/* Calculated at init based on memory size */
-static unsigned int ip_nat_htable_size;
-
-static struct list_head *bysource;
-
-#define MAX_IP_NAT_PROTO 256
-static struct ip_nat_protocol *ip_nat_protos[MAX_IP_NAT_PROTO];
-
-static inline struct ip_nat_protocol *
-__ip_nat_proto_find(u_int8_t protonum)
-{
- return rcu_dereference(ip_nat_protos[protonum]);
-}
-
-struct ip_nat_protocol *
-ip_nat_proto_find_get(u_int8_t protonum)
-{
- struct ip_nat_protocol *p;
-
- rcu_read_lock();
- p = __ip_nat_proto_find(protonum);
- if (!try_module_get(p->me))
- p = &ip_nat_unknown_protocol;
- rcu_read_unlock();
-
- return p;
-}
-EXPORT_SYMBOL_GPL(ip_nat_proto_find_get);
-
-void
-ip_nat_proto_put(struct ip_nat_protocol *p)
-{
- module_put(p->me);
-}
-EXPORT_SYMBOL_GPL(ip_nat_proto_put);
-
-/* We keep an extra hash for each conntrack, for fast searching. */
-static inline unsigned int
-hash_by_src(const struct ip_conntrack_tuple *tuple)
-{
- /* Original src, to ensure we map it consistently if poss. */
- return jhash_3words((__force u32)tuple->src.ip, tuple->src.u.all,
- tuple->dst.protonum, 0) % ip_nat_htable_size;
-}
-
-/* Noone using conntrack by the time this called. */
-static void ip_nat_cleanup_conntrack(struct ip_conntrack *conn)
-{
- if (!(conn->status & IPS_NAT_DONE_MASK))
- return;
-
- write_lock_bh(&ip_nat_lock);
- list_del(&conn->nat.info.bysource);
- write_unlock_bh(&ip_nat_lock);
-}
-
-/* Is this tuple already taken? (not by us) */
-int
-ip_nat_used_tuple(const struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack *ignored_conntrack)
-{
- /* Conntrack tracking doesn't keep track of outgoing tuples; only
- incoming ones. NAT means they don't have a fixed mapping,
- so we invert the tuple and look for the incoming reply.
-
- We could keep a separate hash if this proves too slow. */
- struct ip_conntrack_tuple reply;
-
- invert_tuplepr(&reply, tuple);
- return ip_conntrack_tuple_taken(&reply, ignored_conntrack);
-}
-EXPORT_SYMBOL(ip_nat_used_tuple);
-
-/* If we source map this tuple so reply looks like reply_tuple, will
- * that meet the constraints of range. */
-static int
-in_range(const struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range)
-{
- struct ip_nat_protocol *proto;
- int ret = 0;
-
- /* If we are supposed to map IPs, then we must be in the
- range specified, otherwise let this drag us onto a new src IP. */
- if (range->flags & IP_NAT_RANGE_MAP_IPS) {
- if (ntohl(tuple->src.ip) < ntohl(range->min_ip)
- || ntohl(tuple->src.ip) > ntohl(range->max_ip))
- return 0;
- }
-
- rcu_read_lock();
- proto = __ip_nat_proto_find(tuple->dst.protonum);
- if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)
- || proto->in_range(tuple, IP_NAT_MANIP_SRC,
- &range->min, &range->max))
- ret = 1;
- rcu_read_unlock();
-
- return ret;
-}
-
-static inline int
-same_src(const struct ip_conntrack *ct,
- const struct ip_conntrack_tuple *tuple)
-{
- return (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum
- == tuple->dst.protonum
- && ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip
- == tuple->src.ip
- && ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.all
- == tuple->src.u.all);
-}
-
-/* Only called for SRC manip */
-static int
-find_appropriate_src(const struct ip_conntrack_tuple *tuple,
- struct ip_conntrack_tuple *result,
- const struct ip_nat_range *range)
-{
- unsigned int h = hash_by_src(tuple);
- struct ip_conntrack *ct;
-
- read_lock_bh(&ip_nat_lock);
- list_for_each_entry(ct, &bysource[h], nat.info.bysource) {
- if (same_src(ct, tuple)) {
- /* Copy source part from reply tuple. */
- invert_tuplepr(result,
- &ct->tuplehash[IP_CT_DIR_REPLY].tuple);
- result->dst = tuple->dst;
-
- if (in_range(result, range)) {
- read_unlock_bh(&ip_nat_lock);
- return 1;
- }
- }
- }
- read_unlock_bh(&ip_nat_lock);
- return 0;
-}
-
-/* For [FUTURE] fragmentation handling, we want the least-used
- src-ip/dst-ip/proto triple. Fairness doesn't come into it. Thus
- if the range specifies 1.2.3.4 ports 10000-10005 and 1.2.3.5 ports
- 1-65535, we don't do pro-rata allocation based on ports; we choose
- the ip with the lowest src-ip/dst-ip/proto usage.
-*/
-static void
-find_best_ips_proto(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- const struct ip_conntrack *conntrack,
- enum ip_nat_manip_type maniptype)
-{
- __be32 *var_ipp;
- /* Host order */
- u_int32_t minip, maxip, j;
-
- /* No IP mapping? Do nothing. */
- if (!(range->flags & IP_NAT_RANGE_MAP_IPS))
- return;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- var_ipp = &tuple->src.ip;
- else
- var_ipp = &tuple->dst.ip;
-
- /* Fast path: only one choice. */
- if (range->min_ip == range->max_ip) {
- *var_ipp = range->min_ip;
- return;
- }
-
- /* Hashing source and destination IPs gives a fairly even
- * spread in practice (if there are a small number of IPs
- * involved, there usually aren't that many connections
- * anyway). The consistency means that servers see the same
- * client coming from the same IP (some Internet Banking sites
- * like this), even across reboots. */
- minip = ntohl(range->min_ip);
- maxip = ntohl(range->max_ip);
- j = jhash_2words((__force u32)tuple->src.ip, (__force u32)tuple->dst.ip, 0);
- *var_ipp = htonl(minip + j % (maxip - minip + 1));
-}
-
-/* Manipulate the tuple into the range given. For NF_IP_POST_ROUTING,
- * we change the source to map into the range. For NF_IP_PRE_ROUTING
- * and NF_IP_LOCAL_OUT, we change the destination to map into the
- * range. It might not be possible to get a unique tuple, but we try.
- * At worst (or if we race), we will end up with a final duplicate in
- * __ip_conntrack_confirm and drop the packet. */
-static void
-get_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_conntrack_tuple *orig_tuple,
- const struct ip_nat_range *range,
- struct ip_conntrack *conntrack,
- enum ip_nat_manip_type maniptype)
-{
- struct ip_nat_protocol *proto;
-
- /* 1) If this srcip/proto/src-proto-part is currently mapped,
- and that same mapping gives a unique tuple within the given
- range, use that.
-
- This is only required for source (ie. NAT/masq) mappings.
- So far, we don't do local source mappings, so multiple
- manips not an issue. */
- if (maniptype == IP_NAT_MANIP_SRC) {
- if (find_appropriate_src(orig_tuple, tuple, range)) {
- DEBUGP("get_unique_tuple: Found current src map\n");
- if (!(range->flags & IP_NAT_RANGE_PROTO_RANDOM))
- if (!ip_nat_used_tuple(tuple, conntrack))
- return;
- }
- }
-
- /* 2) Select the least-used IP/proto combination in the given
- range. */
- *tuple = *orig_tuple;
- find_best_ips_proto(tuple, range, conntrack, maniptype);
-
- /* 3) The per-protocol part of the manip is made to map into
- the range to make a unique tuple. */
-
- rcu_read_lock();
- proto = __ip_nat_proto_find(orig_tuple->dst.protonum);
-
- /* Change protocol info to have some randomization */
- if (range->flags & IP_NAT_RANGE_PROTO_RANDOM) {
- proto->unique_tuple(tuple, range, maniptype, conntrack);
- goto out;
- }
-
- /* Only bother mapping if it's not already in range and unique */
- if ((!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)
- || proto->in_range(tuple, maniptype, &range->min, &range->max))
- && !ip_nat_used_tuple(tuple, conntrack))
- goto out;
-
- /* Last change: get protocol to try to obtain unique tuple. */
- proto->unique_tuple(tuple, range, maniptype, conntrack);
-out:
- rcu_read_unlock();
-}
-
-unsigned int
-ip_nat_setup_info(struct ip_conntrack *conntrack,
- const struct ip_nat_range *range,
- unsigned int hooknum)
-{
- struct ip_conntrack_tuple curr_tuple, new_tuple;
- struct ip_nat_info *info = &conntrack->nat.info;
- int have_to_hash = !(conntrack->status & IPS_NAT_DONE_MASK);
- enum ip_nat_manip_type maniptype = HOOK2MANIP(hooknum);
-
- IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING
- || hooknum == NF_IP_POST_ROUTING
- || hooknum == NF_IP_LOCAL_IN
- || hooknum == NF_IP_LOCAL_OUT);
- BUG_ON(ip_nat_initialized(conntrack, maniptype));
-
- /* What we've got will look like inverse of reply. Normally
- this is what is in the conntrack, except for prior
- manipulations (future optimization: if num_manips == 0,
- orig_tp =
- conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple) */
- invert_tuplepr(&curr_tuple,
- &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple);
-
- get_unique_tuple(&new_tuple, &curr_tuple, range, conntrack, maniptype);
-
- if (!ip_ct_tuple_equal(&new_tuple, &curr_tuple)) {
- struct ip_conntrack_tuple reply;
-
- /* Alter conntrack table so will recognize replies. */
- invert_tuplepr(&reply, &new_tuple);
- ip_conntrack_alter_reply(conntrack, &reply);
-
- /* Non-atomic: we own this at the moment. */
- if (maniptype == IP_NAT_MANIP_SRC)
- conntrack->status |= IPS_SRC_NAT;
- else
- conntrack->status |= IPS_DST_NAT;
- }
-
- /* Place in source hash if this is the first time. */
- if (have_to_hash) {
- unsigned int srchash
- = hash_by_src(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple);
- write_lock_bh(&ip_nat_lock);
- list_add(&info->bysource, &bysource[srchash]);
- write_unlock_bh(&ip_nat_lock);
- }
-
- /* It's done. */
- if (maniptype == IP_NAT_MANIP_DST)
- set_bit(IPS_DST_NAT_DONE_BIT, &conntrack->status);
- else
- set_bit(IPS_SRC_NAT_DONE_BIT, &conntrack->status);
-
- return NF_ACCEPT;
-}
-EXPORT_SYMBOL(ip_nat_setup_info);
-
-/* Returns true if succeeded. */
-static int
-manip_pkt(u_int16_t proto,
- struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *target,
- enum ip_nat_manip_type maniptype)
-{
- struct iphdr *iph;
- struct ip_nat_protocol *p;
-
- if (!skb_make_writable(pskb, iphdroff + sizeof(*iph)))
- return 0;
-
- iph = (void *)(*pskb)->data + iphdroff;
-
- /* Manipulate protcol part. */
-
- /* rcu_read_lock()ed by nf_hook_slow */
- p = __ip_nat_proto_find(proto);
- if (!p->manip_pkt(pskb, iphdroff, target, maniptype))
- return 0;
-
- iph = (void *)(*pskb)->data + iphdroff;
-
- if (maniptype == IP_NAT_MANIP_SRC) {
- nf_csum_replace4(&iph->check, iph->saddr, target->src.ip);
- iph->saddr = target->src.ip;
- } else {
- nf_csum_replace4(&iph->check, iph->daddr, target->dst.ip);
- iph->daddr = target->dst.ip;
- }
- return 1;
-}
-
-/* Do packet manipulations according to ip_nat_setup_info. */
-unsigned int ip_nat_packet(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int hooknum,
- struct sk_buff **pskb)
-{
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
- unsigned long statusbit;
- enum ip_nat_manip_type mtype = HOOK2MANIP(hooknum);
-
- if (mtype == IP_NAT_MANIP_SRC)
- statusbit = IPS_SRC_NAT;
- else
- statusbit = IPS_DST_NAT;
-
- /* Invert if this is reply dir. */
- if (dir == IP_CT_DIR_REPLY)
- statusbit ^= IPS_NAT_MASK;
-
- /* Non-atomic: these bits don't change. */
- if (ct->status & statusbit) {
- struct ip_conntrack_tuple target;
-
- /* We are aiming to look like inverse of other direction. */
- invert_tuplepr(&target, &ct->tuplehash[!dir].tuple);
-
- if (!manip_pkt(target.dst.protonum, pskb, 0, &target, mtype))
- return NF_DROP;
- }
- return NF_ACCEPT;
-}
-EXPORT_SYMBOL_GPL(ip_nat_packet);
-
-/* Dir is direction ICMP is coming from (opposite to packet it contains) */
-int ip_nat_icmp_reply_translation(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int hooknum,
- struct sk_buff **pskb)
-{
- struct {
- struct icmphdr icmp;
- struct iphdr ip;
- } *inside;
- struct ip_conntrack_protocol *proto;
- struct ip_conntrack_tuple inner, target;
- int hdrlen = (*pskb)->nh.iph->ihl * 4;
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
- unsigned long statusbit;
- enum ip_nat_manip_type manip = HOOK2MANIP(hooknum);
-
- if (!skb_make_writable(pskb, hdrlen + sizeof(*inside)))
- return 0;
-
- inside = (void *)(*pskb)->data + (*pskb)->nh.iph->ihl*4;
-
- /* We're actually going to mangle it beyond trivial checksum
- adjustment, so make sure the current checksum is correct. */
- if (nf_ip_checksum(*pskb, hooknum, hdrlen, 0))
- return 0;
-
- /* Must be RELATED */
- IP_NF_ASSERT((*pskb)->nfctinfo == IP_CT_RELATED ||
- (*pskb)->nfctinfo == IP_CT_RELATED+IP_CT_IS_REPLY);
-
- /* Redirects on non-null nats must be dropped, else they'll
- start talking to each other without our translation, and be
- confused... --RR */
- if (inside->icmp.type == ICMP_REDIRECT) {
- /* If NAT isn't finished, assume it and drop. */
- if ((ct->status & IPS_NAT_DONE_MASK) != IPS_NAT_DONE_MASK)
- return 0;
-
- if (ct->status & IPS_NAT_MASK)
- return 0;
- }
-
- DEBUGP("icmp_reply_translation: translating error %p manp %u dir %s\n",
- *pskb, manip, dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY");
-
- /* rcu_read_lock()ed by nf_hook_slow */
- proto = __ip_conntrack_proto_find(inside->ip.protocol);
- if (!ip_ct_get_tuple(&inside->ip, *pskb, (*pskb)->nh.iph->ihl*4 +
- sizeof(struct icmphdr) + inside->ip.ihl*4,
- &inner, proto))
- return 0;
-
- /* Change inner back to look like incoming packet. We do the
- opposite manip on this hook to normal, because it might not
- pass all hooks (locally-generated ICMP). Consider incoming
- packet: PREROUTING (DST manip), routing produces ICMP, goes
- through POSTROUTING (which must correct the DST manip). */
- if (!manip_pkt(inside->ip.protocol, pskb,
- (*pskb)->nh.iph->ihl*4
- + sizeof(inside->icmp),
- &ct->tuplehash[!dir].tuple,
- !manip))
- return 0;
-
- if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
- /* Reloading "inside" here since manip_pkt inner. */
- inside = (void *)(*pskb)->data + (*pskb)->nh.iph->ihl*4;
- inside->icmp.checksum = 0;
- inside->icmp.checksum = csum_fold(skb_checksum(*pskb, hdrlen,
- (*pskb)->len - hdrlen,
- 0));
- }
-
- /* Change outer to look the reply to an incoming packet
- * (proto 0 means don't invert per-proto part). */
- if (manip == IP_NAT_MANIP_SRC)
- statusbit = IPS_SRC_NAT;
- else
- statusbit = IPS_DST_NAT;
-
- /* Invert if this is reply dir. */
- if (dir == IP_CT_DIR_REPLY)
- statusbit ^= IPS_NAT_MASK;
-
- if (ct->status & statusbit) {
- invert_tuplepr(&target, &ct->tuplehash[!dir].tuple);
- if (!manip_pkt(0, pskb, 0, &target, manip))
- return 0;
- }
-
- return 1;
-}
-EXPORT_SYMBOL_GPL(ip_nat_icmp_reply_translation);
-
-/* Protocol registration. */
-int ip_nat_protocol_register(struct ip_nat_protocol *proto)
-{
- int ret = 0;
-
- write_lock_bh(&ip_nat_lock);
- if (ip_nat_protos[proto->protonum] != &ip_nat_unknown_protocol) {
- ret = -EBUSY;
- goto out;
- }
- rcu_assign_pointer(ip_nat_protos[proto->protonum], proto);
- out:
- write_unlock_bh(&ip_nat_lock);
- return ret;
-}
-EXPORT_SYMBOL(ip_nat_protocol_register);
-
-/* Noone stores the protocol anywhere; simply delete it. */
-void ip_nat_protocol_unregister(struct ip_nat_protocol *proto)
-{
- write_lock_bh(&ip_nat_lock);
- rcu_assign_pointer(ip_nat_protos[proto->protonum],
- &ip_nat_unknown_protocol);
- write_unlock_bh(&ip_nat_lock);
- synchronize_rcu();
-}
-EXPORT_SYMBOL(ip_nat_protocol_unregister);
-
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
-int
-ip_nat_port_range_to_nfattr(struct sk_buff *skb,
- const struct ip_nat_range *range)
-{
- NFA_PUT(skb, CTA_PROTONAT_PORT_MIN, sizeof(__be16),
- &range->min.tcp.port);
- NFA_PUT(skb, CTA_PROTONAT_PORT_MAX, sizeof(__be16),
- &range->max.tcp.port);
-
- return 0;
-
-nfattr_failure:
- return -1;
-}
-
-int
-ip_nat_port_nfattr_to_range(struct nfattr *tb[], struct ip_nat_range *range)
-{
- int ret = 0;
-
- /* we have to return whether we actually parsed something or not */
-
- if (tb[CTA_PROTONAT_PORT_MIN-1]) {
- ret = 1;
- range->min.tcp.port =
- *(__be16 *)NFA_DATA(tb[CTA_PROTONAT_PORT_MIN-1]);
- }
-
- if (!tb[CTA_PROTONAT_PORT_MAX-1]) {
- if (ret)
- range->max.tcp.port = range->min.tcp.port;
- } else {
- ret = 1;
- range->max.tcp.port =
- *(__be16 *)NFA_DATA(tb[CTA_PROTONAT_PORT_MAX-1]);
- }
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(ip_nat_port_nfattr_to_range);
-EXPORT_SYMBOL_GPL(ip_nat_port_range_to_nfattr);
-#endif
-
-static int __init ip_nat_init(void)
-{
- size_t i;
-
- /* Leave them the same for the moment. */
- ip_nat_htable_size = ip_conntrack_htable_size;
-
- /* One vmalloc for both hash tables */
- bysource = vmalloc(sizeof(struct list_head) * ip_nat_htable_size);
- if (!bysource)
- return -ENOMEM;
-
- /* Sew in builtin protocols. */
- write_lock_bh(&ip_nat_lock);
- for (i = 0; i < MAX_IP_NAT_PROTO; i++)
- rcu_assign_pointer(ip_nat_protos[i], &ip_nat_unknown_protocol);
- rcu_assign_pointer(ip_nat_protos[IPPROTO_TCP], &ip_nat_protocol_tcp);
- rcu_assign_pointer(ip_nat_protos[IPPROTO_UDP], &ip_nat_protocol_udp);
- rcu_assign_pointer(ip_nat_protos[IPPROTO_ICMP], &ip_nat_protocol_icmp);
- write_unlock_bh(&ip_nat_lock);
-
- for (i = 0; i < ip_nat_htable_size; i++) {
- INIT_LIST_HEAD(&bysource[i]);
- }
-
- /* FIXME: Man, this is a hack. <SIGH> */
- IP_NF_ASSERT(rcu_dereference(ip_conntrack_destroyed) == NULL);
- rcu_assign_pointer(ip_conntrack_destroyed, ip_nat_cleanup_conntrack);
-
- /* Initialize fake conntrack so that NAT will skip it */
- ip_conntrack_untracked.status |= IPS_NAT_DONE_MASK;
- return 0;
-}
-
-/* Clear NAT section of all conntracks, in case we're loaded again. */
-static int clean_nat(struct ip_conntrack *i, void *data)
-{
- memset(&i->nat, 0, sizeof(i->nat));
- i->status &= ~(IPS_NAT_MASK | IPS_NAT_DONE_MASK | IPS_SEQ_ADJUST);
- return 0;
-}
-
-static void __exit ip_nat_cleanup(void)
-{
- ip_ct_iterate_cleanup(&clean_nat, NULL);
- rcu_assign_pointer(ip_conntrack_destroyed, NULL);
- synchronize_rcu();
- vfree(bysource);
-}
-
-MODULE_LICENSE("GPL");
-
-module_init(ip_nat_init);
-module_exit(ip_nat_cleanup);
+++ /dev/null
-/* FTP extension for TCP NAT alteration. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/moduleparam.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Rusty Russell <rusty@rustcorp.com.au>");
-MODULE_DESCRIPTION("ftp NAT helper");
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/* FIXME: Time out? --RR */
-
-static int
-mangle_rfc959_packet(struct sk_buff **pskb,
- __be32 newip,
- u_int16_t port,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- u32 *seq)
-{
- char buffer[sizeof("nnn,nnn,nnn,nnn,nnn,nnn")];
-
- sprintf(buffer, "%u,%u,%u,%u,%u,%u",
- NIPQUAD(newip), port>>8, port&0xFF);
-
- DEBUGP("calling ip_nat_mangle_tcp_packet\n");
-
- *seq += strlen(buffer) - matchlen;
- return ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, matchoff,
- matchlen, buffer, strlen(buffer));
-}
-
-/* |1|132.235.1.2|6275| */
-static int
-mangle_eprt_packet(struct sk_buff **pskb,
- __be32 newip,
- u_int16_t port,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- u32 *seq)
-{
- char buffer[sizeof("|1|255.255.255.255|65535|")];
-
- sprintf(buffer, "|1|%u.%u.%u.%u|%u|", NIPQUAD(newip), port);
-
- DEBUGP("calling ip_nat_mangle_tcp_packet\n");
-
- *seq += strlen(buffer) - matchlen;
- return ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, matchoff,
- matchlen, buffer, strlen(buffer));
-}
-
-/* |1|132.235.1.2|6275| */
-static int
-mangle_epsv_packet(struct sk_buff **pskb,
- __be32 newip,
- u_int16_t port,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- u32 *seq)
-{
- char buffer[sizeof("|||65535|")];
-
- sprintf(buffer, "|||%u|", port);
-
- DEBUGP("calling ip_nat_mangle_tcp_packet\n");
-
- *seq += strlen(buffer) - matchlen;
- return ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, matchoff,
- matchlen, buffer, strlen(buffer));
-}
-
-static int (*mangle[])(struct sk_buff **, __be32, u_int16_t,
- unsigned int,
- unsigned int,
- struct ip_conntrack *,
- enum ip_conntrack_info,
- u32 *seq)
-= { [IP_CT_FTP_PORT] = mangle_rfc959_packet,
- [IP_CT_FTP_PASV] = mangle_rfc959_packet,
- [IP_CT_FTP_EPRT] = mangle_eprt_packet,
- [IP_CT_FTP_EPSV] = mangle_epsv_packet
-};
-
-/* So, this packet has hit the connection tracking matching code.
- Mangle it, and change the expectation to match the new version. */
-static unsigned int ip_nat_ftp(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- enum ip_ct_ftp_type type,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp,
- u32 *seq)
-{
- __be32 newip;
- u_int16_t port;
- int dir = CTINFO2DIR(ctinfo);
- struct ip_conntrack *ct = exp->master;
-
- DEBUGP("FTP_NAT: type %i, off %u len %u\n", type, matchoff, matchlen);
-
- /* Connection will come from wherever this packet goes, hence !dir */
- newip = ct->tuplehash[!dir].tuple.dst.ip;
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->dir = !dir;
-
- /* When you see the packet, we need to NAT it the same as the
- * this one. */
- exp->expectfn = ip_nat_follow_master;
-
- /* Try to get same port: if not, try to change it. */
- for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) {
- exp->tuple.dst.u.tcp.port = htons(port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (port == 0)
- return NF_DROP;
-
- if (!mangle[type](pskb, newip, port, matchoff, matchlen, ct, ctinfo,
- seq)) {
- ip_conntrack_unexpect_related(exp);
- return NF_DROP;
- }
- return NF_ACCEPT;
-}
-
-static void __exit ip_nat_ftp_fini(void)
-{
- rcu_assign_pointer(ip_nat_ftp_hook, NULL);
- synchronize_rcu();
-}
-
-static int __init ip_nat_ftp_init(void)
-{
- BUG_ON(rcu_dereference(ip_nat_ftp_hook));
- rcu_assign_pointer(ip_nat_ftp_hook, ip_nat_ftp);
- return 0;
-}
-
-/* Prior to 2.6.11, we had a ports param. No longer, but don't break users. */
-static int warn_set(const char *val, struct kernel_param *kp)
-{
- printk(KERN_INFO KBUILD_MODNAME
- ": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
- return 0;
-}
-module_param_call(ports, warn_set, NULL, NULL, 0);
-
-module_init(ip_nat_ftp_init);
-module_exit(ip_nat_ftp_fini);
+++ /dev/null
-/* ip_nat_helper.c - generic support functions for NAT helpers
- *
- * (C) 2000-2002 Harald Welte <laforge@netfilter.org>
- * (C) 2003-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 14 Jan 2002 Harald Welte <laforge@gnumonks.org>:
- * - add support for SACK adjustment
- * 14 Mar 2002 Harald Welte <laforge@gnumonks.org>:
- * - merge SACK support into newnat API
- * 16 Aug 2002 Brian J. Murrell <netfilter@interlinx.bc.ca>:
- * - make ip_nat_resize_packet more generic (TCP and UDP)
- * - add ip_nat_mangle_udp_packet
- */
-#include <linux/module.h>
-#include <linux/kmod.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/skbuff.h>
-#include <linux/netfilter_ipv4.h>
-#include <net/checksum.h>
-#include <net/icmp.h>
-#include <net/ip.h>
-#include <net/tcp.h>
-#include <net/udp.h>
-
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-
-#if 0
-#define DEBUGP printk
-#define DUMP_OFFSET(x) printk("offset_before=%d, offset_after=%d, correction_pos=%u\n", x->offset_before, x->offset_after, x->correction_pos);
-#else
-#define DEBUGP(format, args...)
-#define DUMP_OFFSET(x)
-#endif
-
-static DEFINE_SPINLOCK(ip_nat_seqofs_lock);
-
-/* Setup TCP sequence correction given this change at this sequence */
-static inline void
-adjust_tcp_sequence(u32 seq,
- int sizediff,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- int dir;
- struct ip_nat_seq *this_way, *other_way;
-
- DEBUGP("ip_nat_resize_packet: old_size = %u, new_size = %u\n",
- (*skb)->len, new_size);
-
- dir = CTINFO2DIR(ctinfo);
-
- this_way = &ct->nat.info.seq[dir];
- other_way = &ct->nat.info.seq[!dir];
-
- DEBUGP("ip_nat_resize_packet: Seq_offset before: ");
- DUMP_OFFSET(this_way);
-
- spin_lock_bh(&ip_nat_seqofs_lock);
-
- /* SYN adjust. If it's uninitialized, or this is after last
- * correction, record it: we don't handle more than one
- * adjustment in the window, but do deal with common case of a
- * retransmit */
- if (this_way->offset_before == this_way->offset_after
- || before(this_way->correction_pos, seq)) {
- this_way->correction_pos = seq;
- this_way->offset_before = this_way->offset_after;
- this_way->offset_after += sizediff;
- }
- spin_unlock_bh(&ip_nat_seqofs_lock);
-
- DEBUGP("ip_nat_resize_packet: Seq_offset after: ");
- DUMP_OFFSET(this_way);
-}
-
-/* Frobs data inside this packet, which is linear. */
-static void mangle_contents(struct sk_buff *skb,
- unsigned int dataoff,
- unsigned int match_offset,
- unsigned int match_len,
- const char *rep_buffer,
- unsigned int rep_len)
-{
- unsigned char *data;
-
- BUG_ON(skb_is_nonlinear(skb));
- data = (unsigned char *)skb->nh.iph + dataoff;
-
- /* move post-replacement */
- memmove(data + match_offset + rep_len,
- data + match_offset + match_len,
- skb->tail - (data + match_offset + match_len));
-
- /* insert data from buffer */
- memcpy(data + match_offset, rep_buffer, rep_len);
-
- /* update skb info */
- if (rep_len > match_len) {
- DEBUGP("ip_nat_mangle_packet: Extending packet by "
- "%u from %u bytes\n", rep_len - match_len,
- skb->len);
- skb_put(skb, rep_len - match_len);
- } else {
- DEBUGP("ip_nat_mangle_packet: Shrinking packet from "
- "%u from %u bytes\n", match_len - rep_len,
- skb->len);
- __skb_trim(skb, skb->len + rep_len - match_len);
- }
-
- /* fix IP hdr checksum information */
- skb->nh.iph->tot_len = htons(skb->len);
- ip_send_check(skb->nh.iph);
-}
-
-/* Unusual, but possible case. */
-static int enlarge_skb(struct sk_buff **pskb, unsigned int extra)
-{
- struct sk_buff *nskb;
-
- if ((*pskb)->len + extra > 65535)
- return 0;
-
- nskb = skb_copy_expand(*pskb, skb_headroom(*pskb), extra, GFP_ATOMIC);
- if (!nskb)
- return 0;
-
- /* Transfer socket to new skb. */
- if ((*pskb)->sk)
- skb_set_owner_w(nskb, (*pskb)->sk);
- kfree_skb(*pskb);
- *pskb = nskb;
- return 1;
-}
-
-/* Generic function for mangling variable-length address changes inside
- * NATed TCP connections (like the PORT XXX,XXX,XXX,XXX,XXX,XXX
- * command in FTP).
- *
- * Takes care about all the nasty sequence number changes, checksumming,
- * skb enlargement, ...
- *
- * */
-int
-ip_nat_mangle_tcp_packet(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int match_offset,
- unsigned int match_len,
- const char *rep_buffer,
- unsigned int rep_len)
-{
- struct iphdr *iph;
- struct tcphdr *tcph;
- int oldlen, datalen;
-
- if (!skb_make_writable(pskb, (*pskb)->len))
- return 0;
-
- if (rep_len > match_len
- && rep_len - match_len > skb_tailroom(*pskb)
- && !enlarge_skb(pskb, rep_len - match_len))
- return 0;
-
- SKB_LINEAR_ASSERT(*pskb);
-
- iph = (*pskb)->nh.iph;
- tcph = (void *)iph + iph->ihl*4;
-
- oldlen = (*pskb)->len - iph->ihl*4;
- mangle_contents(*pskb, iph->ihl*4 + tcph->doff*4,
- match_offset, match_len, rep_buffer, rep_len);
-
- datalen = (*pskb)->len - iph->ihl*4;
- if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
- tcph->check = 0;
- tcph->check = tcp_v4_check(datalen,
- iph->saddr, iph->daddr,
- csum_partial((char *)tcph,
- datalen, 0));
- } else
- nf_proto_csum_replace2(&tcph->check, *pskb,
- htons(oldlen), htons(datalen), 1);
-
- if (rep_len != match_len) {
- set_bit(IPS_SEQ_ADJUST_BIT, &ct->status);
- adjust_tcp_sequence(ntohl(tcph->seq),
- (int)rep_len - (int)match_len,
- ct, ctinfo);
- /* Tell TCP window tracking about seq change */
- ip_conntrack_tcp_update(*pskb, ct, CTINFO2DIR(ctinfo));
- }
- return 1;
-}
-EXPORT_SYMBOL(ip_nat_mangle_tcp_packet);
-
-/* Generic function for mangling variable-length address changes inside
- * NATed UDP connections (like the CONNECT DATA XXXXX MESG XXXXX INDEX XXXXX
- * command in the Amanda protocol)
- *
- * Takes care about all the nasty sequence number changes, checksumming,
- * skb enlargement, ...
- *
- * XXX - This function could be merged with ip_nat_mangle_tcp_packet which
- * should be fairly easy to do.
- */
-int
-ip_nat_mangle_udp_packet(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned int match_offset,
- unsigned int match_len,
- const char *rep_buffer,
- unsigned int rep_len)
-{
- struct iphdr *iph;
- struct udphdr *udph;
- int datalen, oldlen;
-
- /* UDP helpers might accidentally mangle the wrong packet */
- iph = (*pskb)->nh.iph;
- if ((*pskb)->len < iph->ihl*4 + sizeof(*udph) +
- match_offset + match_len)
- return 0;
-
- if (!skb_make_writable(pskb, (*pskb)->len))
- return 0;
-
- if (rep_len > match_len
- && rep_len - match_len > skb_tailroom(*pskb)
- && !enlarge_skb(pskb, rep_len - match_len))
- return 0;
-
- iph = (*pskb)->nh.iph;
- udph = (void *)iph + iph->ihl*4;
-
- oldlen = (*pskb)->len - iph->ihl*4;
- mangle_contents(*pskb, iph->ihl*4 + sizeof(*udph),
- match_offset, match_len, rep_buffer, rep_len);
-
- /* update the length of the UDP packet */
- datalen = (*pskb)->len - iph->ihl*4;
- udph->len = htons(datalen);
-
- /* fix udp checksum if udp checksum was previously calculated */
- if (!udph->check && (*pskb)->ip_summed != CHECKSUM_PARTIAL)
- return 1;
-
- if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
- udph->check = 0;
- udph->check = csum_tcpudp_magic(iph->saddr, iph->daddr,
- datalen, IPPROTO_UDP,
- csum_partial((char *)udph,
- datalen, 0));
- if (!udph->check)
- udph->check = CSUM_MANGLED_0;
- } else
- nf_proto_csum_replace2(&udph->check, *pskb,
- htons(oldlen), htons(datalen), 1);
- return 1;
-}
-EXPORT_SYMBOL(ip_nat_mangle_udp_packet);
-
-/* Adjust one found SACK option including checksum correction */
-static void
-sack_adjust(struct sk_buff *skb,
- struct tcphdr *tcph,
- unsigned int sackoff,
- unsigned int sackend,
- struct ip_nat_seq *natseq)
-{
- while (sackoff < sackend) {
- struct tcp_sack_block_wire *sack;
- __be32 new_start_seq, new_end_seq;
-
- sack = (void *)skb->data + sackoff;
- if (after(ntohl(sack->start_seq) - natseq->offset_before,
- natseq->correction_pos))
- new_start_seq = htonl(ntohl(sack->start_seq)
- - natseq->offset_after);
- else
- new_start_seq = htonl(ntohl(sack->start_seq)
- - natseq->offset_before);
-
- if (after(ntohl(sack->end_seq) - natseq->offset_before,
- natseq->correction_pos))
- new_end_seq = htonl(ntohl(sack->end_seq)
- - natseq->offset_after);
- else
- new_end_seq = htonl(ntohl(sack->end_seq)
- - natseq->offset_before);
-
- DEBUGP("sack_adjust: start_seq: %d->%d, end_seq: %d->%d\n",
- ntohl(sack->start_seq), new_start_seq,
- ntohl(sack->end_seq), new_end_seq);
-
- nf_proto_csum_replace4(&tcph->check, skb,
- sack->start_seq, new_start_seq, 0);
- nf_proto_csum_replace4(&tcph->check, skb,
- sack->end_seq, new_end_seq, 0);
- sack->start_seq = new_start_seq;
- sack->end_seq = new_end_seq;
- sackoff += sizeof(*sack);
- }
-}
-
-/* TCP SACK sequence number adjustment */
-static inline unsigned int
-ip_nat_sack_adjust(struct sk_buff **pskb,
- struct tcphdr *tcph,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- unsigned int dir, optoff, optend;
-
- optoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct tcphdr);
- optend = (*pskb)->nh.iph->ihl*4 + tcph->doff*4;
-
- if (!skb_make_writable(pskb, optend))
- return 0;
-
- dir = CTINFO2DIR(ctinfo);
-
- while (optoff < optend) {
- /* Usually: option, length. */
- unsigned char *op = (*pskb)->data + optoff;
-
- switch (op[0]) {
- case TCPOPT_EOL:
- return 1;
- case TCPOPT_NOP:
- optoff++;
- continue;
- default:
- /* no partial options */
- if (optoff + 1 == optend
- || optoff + op[1] > optend
- || op[1] < 2)
- return 0;
- if (op[0] == TCPOPT_SACK
- && op[1] >= 2+TCPOLEN_SACK_PERBLOCK
- && ((op[1] - 2) % TCPOLEN_SACK_PERBLOCK) == 0)
- sack_adjust(*pskb, tcph, optoff+2,
- optoff+op[1],
- &ct->nat.info.seq[!dir]);
- optoff += op[1];
- }
- }
- return 1;
-}
-
-/* TCP sequence number adjustment. Returns 1 on success, 0 on failure */
-int
-ip_nat_seq_adjust(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- struct tcphdr *tcph;
- int dir;
- __be32 newseq, newack;
- struct ip_nat_seq *this_way, *other_way;
-
- dir = CTINFO2DIR(ctinfo);
-
- this_way = &ct->nat.info.seq[dir];
- other_way = &ct->nat.info.seq[!dir];
-
- if (!skb_make_writable(pskb, (*pskb)->nh.iph->ihl*4+sizeof(*tcph)))
- return 0;
-
- tcph = (void *)(*pskb)->data + (*pskb)->nh.iph->ihl*4;
- if (after(ntohl(tcph->seq), this_way->correction_pos))
- newseq = htonl(ntohl(tcph->seq) + this_way->offset_after);
- else
- newseq = htonl(ntohl(tcph->seq) + this_way->offset_before);
-
- if (after(ntohl(tcph->ack_seq) - other_way->offset_before,
- other_way->correction_pos))
- newack = htonl(ntohl(tcph->ack_seq) - other_way->offset_after);
- else
- newack = htonl(ntohl(tcph->ack_seq) - other_way->offset_before);
-
- nf_proto_csum_replace4(&tcph->check, *pskb, tcph->seq, newseq, 0);
- nf_proto_csum_replace4(&tcph->check, *pskb, tcph->ack_seq, newack, 0);
-
- DEBUGP("Adjusting sequence number from %u->%u, ack from %u->%u\n",
- ntohl(tcph->seq), ntohl(newseq), ntohl(tcph->ack_seq),
- ntohl(newack));
-
- tcph->seq = newseq;
- tcph->ack_seq = newack;
-
- if (!ip_nat_sack_adjust(pskb, tcph, ct, ctinfo))
- return 0;
-
- ip_conntrack_tcp_update(*pskb, ct, dir);
-
- return 1;
-}
-EXPORT_SYMBOL(ip_nat_seq_adjust);
-
-/* Setup NAT on this expected conntrack so it follows master. */
-/* If we fail to get a free NAT slot, we'll get dropped on confirm */
-void ip_nat_follow_master(struct ip_conntrack *ct,
- struct ip_conntrack_expect *exp)
-{
- struct ip_nat_range range;
-
- /* This must be a fresh one. */
- BUG_ON(ct->status & IPS_NAT_DONE_MASK);
-
- /* Change src to where master sends to */
- range.flags = IP_NAT_RANGE_MAP_IPS;
- range.min_ip = range.max_ip
- = ct->master->tuplehash[!exp->dir].tuple.dst.ip;
- /* hook doesn't matter, but it has to do source manip */
- ip_nat_setup_info(ct, &range, NF_IP_POST_ROUTING);
-
- /* For DST manip, map port here to where it's expected. */
- range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
- range.min = range.max = exp->saved_proto;
- range.min_ip = range.max_ip
- = ct->master->tuplehash[!exp->dir].tuple.src.ip;
- /* hook doesn't matter, but it has to do destination manip */
- ip_nat_setup_info(ct, &range, NF_IP_PRE_ROUTING);
-}
-EXPORT_SYMBOL(ip_nat_follow_master);
+++ /dev/null
-/*
- * H.323 extension for NAT alteration.
- *
- * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
- *
- * This source code is licensed under General Public License version 2.
- *
- * Based on the 'brute force' H.323 NAT module by
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
- */
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/moduleparam.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-/****************************************************************************/
-static int set_addr(struct sk_buff **pskb,
- unsigned char **data, int dataoff,
- unsigned int addroff, __be32 ip, u_int16_t port)
-{
- enum ip_conntrack_info ctinfo;
- struct ip_conntrack *ct = ip_conntrack_get(*pskb, &ctinfo);
- struct {
- __be32 ip;
- __be16 port;
- } __attribute__ ((__packed__)) buf;
- struct tcphdr _tcph, *th;
-
- buf.ip = ip;
- buf.port = htons(port);
- addroff += dataoff;
-
- if ((*pskb)->nh.iph->protocol == IPPROTO_TCP) {
- if (!ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
- addroff, sizeof(buf),
- (char *) &buf, sizeof(buf))) {
- if (net_ratelimit())
- printk("ip_nat_h323: ip_nat_mangle_tcp_packet"
- " error\n");
- return -1;
- }
-
- /* Relocate data pointer */
- th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
- sizeof(_tcph), &_tcph);
- if (th == NULL)
- return -1;
- *data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
- th->doff * 4 + dataoff;
- } else {
- if (!ip_nat_mangle_udp_packet(pskb, ct, ctinfo,
- addroff, sizeof(buf),
- (char *) &buf, sizeof(buf))) {
- if (net_ratelimit())
- printk("ip_nat_h323: ip_nat_mangle_udp_packet"
- " error\n");
- return -1;
- }
- /* ip_nat_mangle_udp_packet uses skb_make_writable() to copy
- * or pull everything in a linear buffer, so we can safely
- * use the skb pointers now */
- *data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
- sizeof(struct udphdr);
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int set_h225_addr(struct sk_buff **pskb,
- unsigned char **data, int dataoff,
- TransportAddress * addr,
- __be32 ip, u_int16_t port)
-{
- return set_addr(pskb, data, dataoff, addr->ipAddress.ip, ip, port);
-}
-
-/****************************************************************************/
-static int set_h245_addr(struct sk_buff **pskb,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr,
- __be32 ip, u_int16_t port)
-{
- return set_addr(pskb, data, dataoff,
- addr->unicastAddress.iPAddress.network, ip, port);
-}
-
-/****************************************************************************/
-static int set_sig_addr(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- int i;
- __be32 ip;
- u_int16_t port;
-
- for (i = 0; i < count; i++) {
- if (get_h225_addr(*data, &addr[i], &ip, &port)) {
- if (ip == ct->tuplehash[dir].tuple.src.ip &&
- port == info->sig_port[dir]) {
- /* GW->GK */
-
- /* Fix for Gnomemeeting */
- if (i > 0 &&
- get_h225_addr(*data, &addr[0],
- &ip, &port) &&
- (ntohl(ip) & 0xff000000) == 0x7f000000)
- i = 0;
-
- DEBUGP
- ("ip_nat_ras: set signal address "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.dst.
- ip), info->sig_port[!dir]);
- return set_h225_addr(pskb, data, 0, &addr[i],
- ct->tuplehash[!dir].
- tuple.dst.ip,
- info->sig_port[!dir]);
- } else if (ip == ct->tuplehash[dir].tuple.dst.ip &&
- port == info->sig_port[dir]) {
- /* GK->GW */
- DEBUGP
- ("ip_nat_ras: set signal address "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.src.
- ip), info->sig_port[!dir]);
- return set_h225_addr(pskb, data, 0, &addr[i],
- ct->tuplehash[!dir].
- tuple.src.ip,
- info->sig_port[!dir]);
- }
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int set_ras_addr(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data,
- TransportAddress * addr, int count)
-{
- int dir = CTINFO2DIR(ctinfo);
- int i;
- __be32 ip;
- u_int16_t port;
-
- for (i = 0; i < count; i++) {
- if (get_h225_addr(*data, &addr[i], &ip, &port) &&
- ip == ct->tuplehash[dir].tuple.src.ip &&
- port == ntohs(ct->tuplehash[dir].tuple.src.u.udp.port)) {
- DEBUGP("ip_nat_ras: set rasAddress "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(ip), port,
- NIPQUAD(ct->tuplehash[!dir].tuple.dst.ip),
- ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.
- port));
- return set_h225_addr(pskb, data, 0, &addr[i],
- ct->tuplehash[!dir].tuple.dst.ip,
- ntohs(ct->tuplehash[!dir].tuple.
- dst.u.udp.port));
- }
- }
-
- return 0;
-}
-
-/****************************************************************************/
-static int nat_rtp_rtcp(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr,
- u_int16_t port, u_int16_t rtp_port,
- struct ip_conntrack_expect *rtp_exp,
- struct ip_conntrack_expect *rtcp_exp)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- int i;
- u_int16_t nated_port;
-
- /* Set expectations for NAT */
- rtp_exp->saved_proto.udp.port = rtp_exp->tuple.dst.u.udp.port;
- rtp_exp->expectfn = ip_nat_follow_master;
- rtp_exp->dir = !dir;
- rtcp_exp->saved_proto.udp.port = rtcp_exp->tuple.dst.u.udp.port;
- rtcp_exp->expectfn = ip_nat_follow_master;
- rtcp_exp->dir = !dir;
-
- /* Lookup existing expects */
- for (i = 0; i < H323_RTP_CHANNEL_MAX; i++) {
- if (info->rtp_port[i][dir] == rtp_port) {
- /* Expected */
-
- /* Use allocated ports first. This will refresh
- * the expects */
- rtp_exp->tuple.dst.u.udp.port =
- htons(info->rtp_port[i][dir]);
- rtcp_exp->tuple.dst.u.udp.port =
- htons(info->rtp_port[i][dir] + 1);
- break;
- } else if (info->rtp_port[i][dir] == 0) {
- /* Not expected */
- break;
- }
- }
-
- /* Run out of expectations */
- if (i >= H323_RTP_CHANNEL_MAX) {
- if (net_ratelimit())
- printk("ip_nat_h323: out of expectations\n");
- return 0;
- }
-
- /* Try to get a pair of ports. */
- for (nated_port = ntohs(rtp_exp->tuple.dst.u.udp.port);
- nated_port != 0; nated_port += 2) {
- rtp_exp->tuple.dst.u.udp.port = htons(nated_port);
- if (ip_conntrack_expect_related(rtp_exp) == 0) {
- rtcp_exp->tuple.dst.u.udp.port =
- htons(nated_port + 1);
- if (ip_conntrack_expect_related(rtcp_exp) == 0)
- break;
- ip_conntrack_unexpect_related(rtp_exp);
- }
- }
-
- if (nated_port == 0) { /* No port available */
- if (net_ratelimit())
- printk("ip_nat_h323: out of RTP ports\n");
- return 0;
- }
-
- /* Modify signal */
- if (set_h245_addr(pskb, data, dataoff, addr,
- ct->tuplehash[!dir].tuple.dst.ip,
- (port & 1) ? nated_port + 1 : nated_port) == 0) {
- /* Save ports */
- info->rtp_port[i][dir] = rtp_port;
- info->rtp_port[i][!dir] = nated_port;
- } else {
- ip_conntrack_unexpect_related(rtp_exp);
- ip_conntrack_unexpect_related(rtcp_exp);
- return -1;
- }
-
- /* Success */
- DEBUGP("ip_nat_h323: expect RTP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(rtp_exp->tuple.src.ip),
- ntohs(rtp_exp->tuple.src.u.udp.port),
- NIPQUAD(rtp_exp->tuple.dst.ip),
- ntohs(rtp_exp->tuple.dst.u.udp.port));
- DEBUGP("ip_nat_h323: expect RTCP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(rtcp_exp->tuple.src.ip),
- ntohs(rtcp_exp->tuple.src.u.udp.port),
- NIPQUAD(rtcp_exp->tuple.dst.ip),
- ntohs(rtcp_exp->tuple.dst.u.udp.port));
-
- return 0;
-}
-
-/****************************************************************************/
-static int nat_t120(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- H245_TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect *exp)
-{
- int dir = CTINFO2DIR(ctinfo);
- u_int16_t nated_port = port;
-
- /* Set expectations for NAT */
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->expectfn = ip_nat_follow_master;
- exp->dir = !dir;
-
- /* Try to get same port: if not, try to change it. */
- for (; nated_port != 0; nated_port++) {
- exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (nated_port == 0) { /* No port available */
- if (net_ratelimit())
- printk("ip_nat_h323: out of TCP ports\n");
- return 0;
- }
-
- /* Modify signal */
- if (set_h245_addr(pskb, data, dataoff, addr,
- ct->tuplehash[!dir].tuple.dst.ip, nated_port) < 0) {
- ip_conntrack_unexpect_related(exp);
- return -1;
- }
-
- DEBUGP("ip_nat_h323: expect T.120 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
- return 0;
-}
-
-/****************************************************************************
- * This conntrack expect function replaces ip_conntrack_h245_expect()
- * which was set by ip_conntrack_helper_h323.c. It calls both
- * ip_nat_follow_master() and ip_conntrack_h245_expect()
- ****************************************************************************/
-static void ip_nat_h245_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this)
-{
- ip_nat_follow_master(new, this);
- ip_conntrack_h245_expect(new, this);
-}
-
-/****************************************************************************/
-static int nat_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect *exp)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- u_int16_t nated_port = port;
-
- /* Set expectations for NAT */
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->expectfn = ip_nat_h245_expect;
- exp->dir = !dir;
-
- /* Check existing expects */
- if (info->sig_port[dir] == port)
- nated_port = info->sig_port[!dir];
-
- /* Try to get same port: if not, try to change it. */
- for (; nated_port != 0; nated_port++) {
- exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (nated_port == 0) { /* No port available */
- if (net_ratelimit())
- printk("ip_nat_q931: out of TCP ports\n");
- return 0;
- }
-
- /* Modify signal */
- if (set_h225_addr(pskb, data, dataoff, addr,
- ct->tuplehash[!dir].tuple.dst.ip,
- nated_port) == 0) {
- /* Save ports */
- info->sig_port[dir] = port;
- info->sig_port[!dir] = nated_port;
- } else {
- ip_conntrack_unexpect_related(exp);
- return -1;
- }
-
- DEBUGP("ip_nat_q931: expect H.245 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
- return 0;
-}
-
-/****************************************************************************
- * This conntrack expect function replaces ip_conntrack_q931_expect()
- * which was set by ip_conntrack_helper_h323.c.
- ****************************************************************************/
-static void ip_nat_q931_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this)
-{
- struct ip_nat_range range;
-
- if (this->tuple.src.ip != 0) { /* Only accept calls from GK */
- ip_nat_follow_master(new, this);
- goto out;
- }
-
- /* This must be a fresh one. */
- BUG_ON(new->status & IPS_NAT_DONE_MASK);
-
- /* Change src to where master sends to */
- range.flags = IP_NAT_RANGE_MAP_IPS;
- range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.ip;
-
- /* hook doesn't matter, but it has to do source manip */
- ip_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
-
- /* For DST manip, map port here to where it's expected. */
- range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
- range.min = range.max = this->saved_proto;
- range.min_ip = range.max_ip =
- new->master->tuplehash[!this->dir].tuple.src.ip;
-
- /* hook doesn't matter, but it has to do destination manip */
- ip_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
-
- out:
- ip_conntrack_q931_expect(new, this);
-}
-
-/****************************************************************************/
-static int nat_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, TransportAddress * addr, int idx,
- u_int16_t port, struct ip_conntrack_expect *exp)
-{
- struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
- int dir = CTINFO2DIR(ctinfo);
- u_int16_t nated_port = port;
- __be32 ip;
-
- /* Set expectations for NAT */
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->expectfn = ip_nat_q931_expect;
- exp->dir = !dir;
-
- /* Check existing expects */
- if (info->sig_port[dir] == port)
- nated_port = info->sig_port[!dir];
-
- /* Try to get same port: if not, try to change it. */
- for (; nated_port != 0; nated_port++) {
- exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (nated_port == 0) { /* No port available */
- if (net_ratelimit())
- printk("ip_nat_ras: out of TCP ports\n");
- return 0;
- }
-
- /* Modify signal */
- if (set_h225_addr(pskb, data, 0, &addr[idx],
- ct->tuplehash[!dir].tuple.dst.ip,
- nated_port) == 0) {
- /* Save ports */
- info->sig_port[dir] = port;
- info->sig_port[!dir] = nated_port;
-
- /* Fix for Gnomemeeting */
- if (idx > 0 &&
- get_h225_addr(*data, &addr[0], &ip, &port) &&
- (ntohl(ip) & 0xff000000) == 0x7f000000) {
- set_h225_addr_hook(pskb, data, 0, &addr[0],
- ct->tuplehash[!dir].tuple.dst.ip,
- info->sig_port[!dir]);
- }
- } else {
- ip_conntrack_unexpect_related(exp);
- return -1;
- }
-
- /* Success */
- DEBUGP("ip_nat_ras: expect Q.931 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
- return 0;
-}
-
-/****************************************************************************/
-static void ip_nat_callforwarding_expect(struct ip_conntrack *new,
- struct ip_conntrack_expect *this)
-{
- struct ip_nat_range range;
-
- /* This must be a fresh one. */
- BUG_ON(new->status & IPS_NAT_DONE_MASK);
-
- /* Change src to where master sends to */
- range.flags = IP_NAT_RANGE_MAP_IPS;
- range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.ip;
-
- /* hook doesn't matter, but it has to do source manip */
- ip_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
-
- /* For DST manip, map port here to where it's expected. */
- range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
- range.min = range.max = this->saved_proto;
- range.min_ip = range.max_ip = this->saved_ip;
-
- /* hook doesn't matter, but it has to do destination manip */
- ip_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
-
- ip_conntrack_q931_expect(new, this);
-}
-
-/****************************************************************************/
-static int nat_callforwarding(struct sk_buff **pskb, struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- unsigned char **data, int dataoff,
- TransportAddress * addr, u_int16_t port,
- struct ip_conntrack_expect *exp)
-{
- int dir = CTINFO2DIR(ctinfo);
- u_int16_t nated_port;
-
- /* Set expectations for NAT */
- exp->saved_ip = exp->tuple.dst.ip;
- exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->expectfn = ip_nat_callforwarding_expect;
- exp->dir = !dir;
-
- /* Try to get same port: if not, try to change it. */
- for (nated_port = port; nated_port != 0; nated_port++) {
- exp->tuple.dst.u.tcp.port = htons(nated_port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (nated_port == 0) { /* No port available */
- if (net_ratelimit())
- printk("ip_nat_q931: out of TCP ports\n");
- return 0;
- }
-
- /* Modify signal */
- if (!set_h225_addr(pskb, data, dataoff, addr,
- ct->tuplehash[!dir].tuple.dst.ip,
- nated_port) == 0) {
- ip_conntrack_unexpect_related(exp);
- return -1;
- }
-
- /* Success */
- DEBUGP("ip_nat_q931: expect Call Forwarding "
- "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
- NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
- NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
-
- return 0;
-}
-
-/****************************************************************************/
-static int __init init(void)
-{
- BUG_ON(rcu_dereference(set_h245_addr_hook) != NULL);
- BUG_ON(rcu_dereference(set_h225_addr_hook) != NULL);
- BUG_ON(rcu_dereference(set_sig_addr_hook) != NULL);
- BUG_ON(rcu_dereference(set_ras_addr_hook) != NULL);
- BUG_ON(rcu_dereference(nat_rtp_rtcp_hook) != NULL);
- BUG_ON(rcu_dereference(nat_t120_hook) != NULL);
- BUG_ON(rcu_dereference(nat_h245_hook) != NULL);
- BUG_ON(rcu_dereference(nat_callforwarding_hook) != NULL);
- BUG_ON(rcu_dereference(nat_q931_hook) != NULL);
-
- rcu_assign_pointer(set_h245_addr_hook, set_h245_addr);
- rcu_assign_pointer(set_h225_addr_hook, set_h225_addr);
- rcu_assign_pointer(set_sig_addr_hook, set_sig_addr);
- rcu_assign_pointer(set_ras_addr_hook, set_ras_addr);
- rcu_assign_pointer(nat_rtp_rtcp_hook, nat_rtp_rtcp);
- rcu_assign_pointer(nat_t120_hook, nat_t120);
- rcu_assign_pointer(nat_h245_hook, nat_h245);
- rcu_assign_pointer(nat_callforwarding_hook, nat_callforwarding);
- rcu_assign_pointer(nat_q931_hook, nat_q931);
-
- DEBUGP("ip_nat_h323: init success\n");
- return 0;
-}
-
-/****************************************************************************/
-static void __exit fini(void)
-{
- rcu_assign_pointer(set_h245_addr_hook, NULL);
- rcu_assign_pointer(set_h225_addr_hook, NULL);
- rcu_assign_pointer(set_sig_addr_hook, NULL);
- rcu_assign_pointer(set_ras_addr_hook, NULL);
- rcu_assign_pointer(nat_rtp_rtcp_hook, NULL);
- rcu_assign_pointer(nat_t120_hook, NULL);
- rcu_assign_pointer(nat_h245_hook, NULL);
- rcu_assign_pointer(nat_callforwarding_hook, NULL);
- rcu_assign_pointer(nat_q931_hook, NULL);
- synchronize_rcu();
-}
-
-/****************************************************************************/
-module_init(init);
-module_exit(fini);
-
-MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
-MODULE_DESCRIPTION("H.323 NAT helper");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * ip_nat_pptp.c - Version 3.0
- *
- * NAT support for PPTP (Point to Point Tunneling Protocol).
- * PPTP is a a protocol for creating virtual private networks.
- * It is a specification defined by Microsoft and some vendors
- * working with Microsoft. PPTP is built on top of a modified
- * version of the Internet Generic Routing Encapsulation Protocol.
- * GRE is defined in RFC 1701 and RFC 1702. Documentation of
- * PPTP can be found in RFC 2637
- *
- * (C) 2000-2005 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- * TODO: - NAT to a unique tuple, not to TCP source port
- * (needs netfilter tuple reservation)
- *
- * Changes:
- * 2002-02-10 - Version 1.3
- * - Use ip_nat_mangle_tcp_packet() because of cloned skb's
- * in local connections (Philip Craig <philipc@snapgear.com>)
- * - add checks for magicCookie and pptp version
- * - make argument list of pptp_{out,in}bound_packet() shorter
- * - move to C99 style initializers
- * - print version number at module loadtime
- * 2003-09-22 - Version 1.5
- * - use SNATed tcp sourceport as callid, since we get called before
- * TCP header is mangled (Philip Craig <philipc@snapgear.com>)
- * 2004-10-22 - Version 2.0
- * - kernel 2.6.x version
- * 2005-06-10 - Version 3.0
- * - kernel >= 2.6.11 version,
- * funded by Oxcoda NetBox Blue (http://www.netboxblue.com/)
- *
- */
-
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <net/tcp.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_pptp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
-#define IP_NAT_PPTP_VERSION "3.0"
-
-#define REQ_CID(req, off) (*(__be16 *)((char *)(req) + (off)))
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter NAT helper module for PPTP");
-
-
-#if 0
-extern const char *pptp_msg_name[];
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s: " format, __FILE__, \
- __FUNCTION__, ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
-static void pptp_nat_expected(struct ip_conntrack *ct,
- struct ip_conntrack_expect *exp)
-{
- struct ip_conntrack *master = ct->master;
- struct ip_conntrack_expect *other_exp;
- struct ip_conntrack_tuple t;
- struct ip_ct_pptp_master *ct_pptp_info;
- struct ip_nat_pptp *nat_pptp_info;
- struct ip_nat_range range;
-
- ct_pptp_info = &master->help.ct_pptp_info;
- nat_pptp_info = &master->nat.help.nat_pptp_info;
-
- /* And here goes the grand finale of corrosion... */
-
- if (exp->dir == IP_CT_DIR_ORIGINAL) {
- DEBUGP("we are PNS->PAC\n");
- /* therefore, build tuple for PAC->PNS */
- t.src.ip = master->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
- t.src.u.gre.key = master->help.ct_pptp_info.pac_call_id;
- t.dst.ip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
- t.dst.u.gre.key = master->help.ct_pptp_info.pns_call_id;
- t.dst.protonum = IPPROTO_GRE;
- } else {
- DEBUGP("we are PAC->PNS\n");
- /* build tuple for PNS->PAC */
- t.src.ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
- t.src.u.gre.key = master->nat.help.nat_pptp_info.pns_call_id;
- t.dst.ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
- t.dst.u.gre.key = master->nat.help.nat_pptp_info.pac_call_id;
- t.dst.protonum = IPPROTO_GRE;
- }
-
- DEBUGP("trying to unexpect other dir: ");
- DUMP_TUPLE(&t);
- other_exp = ip_conntrack_expect_find_get(&t);
- if (other_exp) {
- ip_conntrack_unexpect_related(other_exp);
- ip_conntrack_expect_put(other_exp);
- DEBUGP("success\n");
- } else {
- DEBUGP("not found!\n");
- }
-
- /* This must be a fresh one. */
- BUG_ON(ct->status & IPS_NAT_DONE_MASK);
-
- /* Change src to where master sends to */
- range.flags = IP_NAT_RANGE_MAP_IPS;
- range.min_ip = range.max_ip
- = ct->master->tuplehash[!exp->dir].tuple.dst.ip;
- if (exp->dir == IP_CT_DIR_ORIGINAL) {
- range.flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
- range.min = range.max = exp->saved_proto;
- }
- /* hook doesn't matter, but it has to do source manip */
- ip_nat_setup_info(ct, &range, NF_IP_POST_ROUTING);
-
- /* For DST manip, map port here to where it's expected. */
- range.flags = IP_NAT_RANGE_MAP_IPS;
- range.min_ip = range.max_ip
- = ct->master->tuplehash[!exp->dir].tuple.src.ip;
- if (exp->dir == IP_CT_DIR_REPLY) {
- range.flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
- range.min = range.max = exp->saved_proto;
- }
- /* hook doesn't matter, but it has to do destination manip */
- ip_nat_setup_info(ct, &range, NF_IP_PRE_ROUTING);
-}
-
-/* outbound packets == from PNS to PAC */
-static int
-pptp_outbound_pkt(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq)
-
-{
- struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
- struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
- u_int16_t msg;
- __be16 new_callid;
- unsigned int cid_off;
-
- new_callid = ct_pptp_info->pns_call_id;
-
- switch (msg = ntohs(ctlh->messageType)) {
- case PPTP_OUT_CALL_REQUEST:
- cid_off = offsetof(union pptp_ctrl_union, ocreq.callID);
- /* FIXME: ideally we would want to reserve a call ID
- * here. current netfilter NAT core is not able to do
- * this :( For now we use TCP source port. This breaks
- * multiple calls within one control session */
-
- /* save original call ID in nat_info */
- nat_pptp_info->pns_call_id = ct_pptp_info->pns_call_id;
-
- /* don't use tcph->source since we are at a DSTmanip
- * hook (e.g. PREROUTING) and pkt is not mangled yet */
- new_callid = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.tcp.port;
-
- /* save new call ID in ct info */
- ct_pptp_info->pns_call_id = new_callid;
- break;
- case PPTP_IN_CALL_REPLY:
- cid_off = offsetof(union pptp_ctrl_union, icack.callID);
- break;
- case PPTP_CALL_CLEAR_REQUEST:
- cid_off = offsetof(union pptp_ctrl_union, clrreq.callID);
- break;
- default:
- DEBUGP("unknown outbound packet 0x%04x:%s\n", msg,
- (msg <= PPTP_MSG_MAX)?
- pptp_msg_name[msg]:pptp_msg_name[0]);
- /* fall through */
-
- case PPTP_SET_LINK_INFO:
- /* only need to NAT in case PAC is behind NAT box */
- case PPTP_START_SESSION_REQUEST:
- case PPTP_START_SESSION_REPLY:
- case PPTP_STOP_SESSION_REQUEST:
- case PPTP_STOP_SESSION_REPLY:
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* no need to alter packet */
- return NF_ACCEPT;
- }
-
- /* only OUT_CALL_REQUEST, IN_CALL_REPLY, CALL_CLEAR_REQUEST pass
- * down to here */
- DEBUGP("altering call id from 0x%04x to 0x%04x\n",
- ntohs(REQ_CID(pptpReq, cid_off)), ntohs(new_callid));
-
- /* mangle packet */
- if (ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
- cid_off + sizeof(struct pptp_pkt_hdr) +
- sizeof(struct PptpControlHeader),
- sizeof(new_callid), (char *)&new_callid,
- sizeof(new_callid)) == 0)
- return NF_DROP;
-
- return NF_ACCEPT;
-}
-
-static void
-pptp_exp_gre(struct ip_conntrack_expect *expect_orig,
- struct ip_conntrack_expect *expect_reply)
-{
- struct ip_conntrack *ct = expect_orig->master;
- struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
- struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-
- /* save original PAC call ID in nat_info */
- nat_pptp_info->pac_call_id = ct_pptp_info->pac_call_id;
-
- /* alter expectation for PNS->PAC direction */
- expect_orig->saved_proto.gre.key = ct_pptp_info->pns_call_id;
- expect_orig->tuple.src.u.gre.key = nat_pptp_info->pns_call_id;
- expect_orig->tuple.dst.u.gre.key = ct_pptp_info->pac_call_id;
- expect_orig->dir = IP_CT_DIR_ORIGINAL;
-
- /* alter expectation for PAC->PNS direction */
- expect_reply->saved_proto.gre.key = nat_pptp_info->pns_call_id;
- expect_reply->tuple.src.u.gre.key = nat_pptp_info->pac_call_id;
- expect_reply->tuple.dst.u.gre.key = ct_pptp_info->pns_call_id;
- expect_reply->dir = IP_CT_DIR_REPLY;
-}
-
-/* inbound packets == from PAC to PNS */
-static int
-pptp_inbound_pkt(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct PptpControlHeader *ctlh,
- union pptp_ctrl_union *pptpReq)
-{
- struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
- u_int16_t msg;
- __be16 new_pcid;
- unsigned int pcid_off;
-
- new_pcid = nat_pptp_info->pns_call_id;
-
- switch (msg = ntohs(ctlh->messageType)) {
- case PPTP_OUT_CALL_REPLY:
- pcid_off = offsetof(union pptp_ctrl_union, ocack.peersCallID);
- break;
- case PPTP_IN_CALL_CONNECT:
- pcid_off = offsetof(union pptp_ctrl_union, iccon.peersCallID);
- break;
- case PPTP_IN_CALL_REQUEST:
- /* only need to nat in case PAC is behind NAT box */
- return NF_ACCEPT;
- case PPTP_WAN_ERROR_NOTIFY:
- pcid_off = offsetof(union pptp_ctrl_union, wanerr.peersCallID);
- break;
- case PPTP_CALL_DISCONNECT_NOTIFY:
- pcid_off = offsetof(union pptp_ctrl_union, disc.callID);
- break;
- case PPTP_SET_LINK_INFO:
- pcid_off = offsetof(union pptp_ctrl_union, setlink.peersCallID);
- break;
-
- default:
- DEBUGP("unknown inbound packet %s\n", (msg <= PPTP_MSG_MAX)?
- pptp_msg_name[msg]:pptp_msg_name[0]);
- /* fall through */
-
- case PPTP_START_SESSION_REQUEST:
- case PPTP_START_SESSION_REPLY:
- case PPTP_STOP_SESSION_REQUEST:
- case PPTP_STOP_SESSION_REPLY:
- case PPTP_ECHO_REQUEST:
- case PPTP_ECHO_REPLY:
- /* no need to alter packet */
- return NF_ACCEPT;
- }
-
- /* only OUT_CALL_REPLY, IN_CALL_CONNECT, IN_CALL_REQUEST,
- * WAN_ERROR_NOTIFY, CALL_DISCONNECT_NOTIFY pass down here */
-
- /* mangle packet */
- DEBUGP("altering peer call id from 0x%04x to 0x%04x\n",
- ntohs(REQ_CID(pptpReq, pcid_off)), ntohs(new_pcid));
-
- if (ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
- pcid_off + sizeof(struct pptp_pkt_hdr) +
- sizeof(struct PptpControlHeader),
- sizeof(new_pcid), (char *)&new_pcid,
- sizeof(new_pcid)) == 0)
- return NF_DROP;
- return NF_ACCEPT;
-}
-
-
-extern int __init ip_nat_proto_gre_init(void);
-extern void __exit ip_nat_proto_gre_fini(void);
-
-static int __init ip_nat_helper_pptp_init(void)
-{
- int ret;
-
- DEBUGP("%s: registering NAT helper\n", __FILE__);
-
- ret = ip_nat_proto_gre_init();
- if (ret < 0)
- return ret;
-
- BUG_ON(rcu_dereference(ip_nat_pptp_hook_outbound));
- rcu_assign_pointer(ip_nat_pptp_hook_outbound, pptp_outbound_pkt);
-
- BUG_ON(rcu_dereference(ip_nat_pptp_hook_inbound));
- rcu_assign_pointer(ip_nat_pptp_hook_inbound, pptp_inbound_pkt);
-
- BUG_ON(rcu_dereference(ip_nat_pptp_hook_exp_gre));
- rcu_assign_pointer(ip_nat_pptp_hook_exp_gre, pptp_exp_gre);
-
- BUG_ON(rcu_dereference(ip_nat_pptp_hook_expectfn));
- rcu_assign_pointer(ip_nat_pptp_hook_expectfn, pptp_nat_expected);
-
- printk("ip_nat_pptp version %s loaded\n", IP_NAT_PPTP_VERSION);
- return 0;
-}
-
-static void __exit ip_nat_helper_pptp_fini(void)
-{
- DEBUGP("cleanup_module\n" );
-
- rcu_assign_pointer(ip_nat_pptp_hook_expectfn, NULL);
- rcu_assign_pointer(ip_nat_pptp_hook_exp_gre, NULL);
- rcu_assign_pointer(ip_nat_pptp_hook_inbound, NULL);
- rcu_assign_pointer(ip_nat_pptp_hook_outbound, NULL);
- synchronize_rcu();
-
- ip_nat_proto_gre_fini();
-
- printk("ip_nat_pptp version %s unloaded\n", IP_NAT_PPTP_VERSION);
-}
-
-module_init(ip_nat_helper_pptp_init);
-module_exit(ip_nat_helper_pptp_fini);
+++ /dev/null
-/* IRC extension for TCP NAT alteration.
- * (C) 2000-2001 by Harald Welte <laforge@gnumonks.org>
- * (C) 2004 Rusty Russell <rusty@rustcorp.com.au> IBM Corporation
- * based on a copy of RR's ip_nat_ftp.c
- *
- * ip_nat_irc.c,v 1.16 2001/12/06 07:42:10 laforge Exp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/kernel.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/moduleparam.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("IRC (DCC) NAT helper");
-MODULE_LICENSE("GPL");
-
-static unsigned int help(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- unsigned int matchoff,
- unsigned int matchlen,
- struct ip_conntrack_expect *exp)
-{
- u_int16_t port;
- unsigned int ret;
-
- /* "4294967296 65635 " */
- char buffer[18];
-
- DEBUGP("IRC_NAT: info (seq %u + %u) in %u\n",
- expect->seq, exp_irc_info->len,
- ntohl(tcph->seq));
-
- /* Reply comes from server. */
- exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
- exp->dir = IP_CT_DIR_REPLY;
-
- /* When you see the packet, we need to NAT it the same as the
- * this one. */
- exp->expectfn = ip_nat_follow_master;
-
- /* Try to get same port: if not, try to change it. */
- for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) {
- exp->tuple.dst.u.tcp.port = htons(port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (port == 0)
- return NF_DROP;
-
- /* strlen("\1DCC CHAT chat AAAAAAAA P\1\n")=27
- * strlen("\1DCC SCHAT chat AAAAAAAA P\1\n")=28
- * strlen("\1DCC SEND F AAAAAAAA P S\1\n")=26
- * strlen("\1DCC MOVE F AAAAAAAA P S\1\n")=26
- * strlen("\1DCC TSEND F AAAAAAAA P S\1\n")=27
- * AAAAAAAAA: bound addr (1.0.0.0==16777216, min 8 digits,
- * 255.255.255.255==4294967296, 10 digits)
- * P: bound port (min 1 d, max 5d (65635))
- * F: filename (min 1 d )
- * S: size (min 1 d )
- * 0x01, \n: terminators
- */
-
- /* AAA = "us", ie. where server normally talks to. */
- sprintf(buffer, "%u %u",
- ntohl(exp->master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip),
- port);
- DEBUGP("ip_nat_irc: Inserting '%s' == %u.%u.%u.%u, port %u\n",
- buffer, NIPQUAD(exp->tuple.src.ip), port);
-
- ret = ip_nat_mangle_tcp_packet(pskb, exp->master, ctinfo,
- matchoff, matchlen, buffer,
- strlen(buffer));
- if (ret != NF_ACCEPT)
- ip_conntrack_unexpect_related(exp);
- return ret;
-}
-
-static void __exit ip_nat_irc_fini(void)
-{
- rcu_assign_pointer(ip_nat_irc_hook, NULL);
- synchronize_rcu();
-}
-
-static int __init ip_nat_irc_init(void)
-{
- BUG_ON(rcu_dereference(ip_nat_irc_hook));
- rcu_assign_pointer(ip_nat_irc_hook, help);
- return 0;
-}
-
-/* Prior to 2.6.11, we had a ports param. No longer, but don't break users. */
-static int warn_set(const char *val, struct kernel_param *kp)
-{
- printk(KERN_INFO KBUILD_MODNAME
- ": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
- return 0;
-}
-module_param_call(ports, warn_set, NULL, NULL, 0);
-
-module_init(ip_nat_irc_init);
-module_exit(ip_nat_irc_fini);
+++ /dev/null
-/*
- * ip_nat_proto_gre.c - Version 2.0
- *
- * NAT protocol helper module for GRE.
- *
- * GRE is a generic encapsulation protocol, which is generally not very
- * suited for NAT, as it has no protocol-specific part as port numbers.
- *
- * It has an optional key field, which may help us distinguishing two
- * connections between the same two hosts.
- *
- * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784
- *
- * PPTP is built on top of a modified version of GRE, and has a mandatory
- * field called "CallID", which serves us for the same purpose as the key
- * field in plain GRE.
- *
- * Documentation about PPTP can be found in RFC 2637
- *
- * (C) 2000-2005 by Harald Welte <laforge@gnumonks.org>
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- *
- */
-
-#include <linux/module.h>
-#include <linux/ip.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-MODULE_DESCRIPTION("Netfilter NAT protocol helper module for GRE");
-
-#if 0
-#define DEBUGP(format, args...) printk(KERN_DEBUG "%s:%s: " format, __FILE__, \
- __FUNCTION__, ## args)
-#else
-#define DEBUGP(x, args...)
-#endif
-
-/* is key in given range between min and max */
-static int
-gre_in_range(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max)
-{
- __be16 key;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- key = tuple->src.u.gre.key;
- else
- key = tuple->dst.u.gre.key;
-
- return ntohs(key) >= ntohs(min->gre.key)
- && ntohs(key) <= ntohs(max->gre.key);
-}
-
-/* generate unique tuple ... */
-static int
-gre_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack)
-{
- static u_int16_t key;
- __be16 *keyptr;
- unsigned int min, i, range_size;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- keyptr = &tuple->src.u.gre.key;
- else
- keyptr = &tuple->dst.u.gre.key;
-
- if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
- DEBUGP("%p: NATing GRE PPTP\n", conntrack);
- min = 1;
- range_size = 0xffff;
- } else {
- min = ntohs(range->min.gre.key);
- range_size = ntohs(range->max.gre.key) - min + 1;
- }
-
- DEBUGP("min = %u, range_size = %u\n", min, range_size);
-
- for (i = 0; i < range_size; i++, key++) {
- *keyptr = htons(min + key % range_size);
- if (!ip_nat_used_tuple(tuple, conntrack))
- return 1;
- }
-
- DEBUGP("%p: no NAT mapping\n", conntrack);
-
- return 0;
-}
-
-/* manipulate a GRE packet according to maniptype */
-static int
-gre_manip_pkt(struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype)
-{
- struct gre_hdr *greh;
- struct gre_hdr_pptp *pgreh;
- struct iphdr *iph = (struct iphdr *)((*pskb)->data + iphdroff);
- unsigned int hdroff = iphdroff + iph->ihl*4;
-
- /* pgreh includes two optional 32bit fields which are not required
- * to be there. That's where the magic '8' comes from */
- if (!skb_make_writable(pskb, hdroff + sizeof(*pgreh)-8))
- return 0;
-
- greh = (void *)(*pskb)->data + hdroff;
- pgreh = (struct gre_hdr_pptp *) greh;
-
- /* we only have destination manip of a packet, since 'source key'
- * is not present in the packet itself */
- if (maniptype == IP_NAT_MANIP_DST) {
- /* key manipulation is always dest */
- switch (greh->version) {
- case 0:
- if (!greh->key) {
- DEBUGP("can't nat GRE w/o key\n");
- break;
- }
- if (greh->csum) {
- /* FIXME: Never tested this code... */
- nf_proto_csum_replace4(gre_csum(greh), *pskb,
- *(gre_key(greh)),
- tuple->dst.u.gre.key, 0);
- }
- *(gre_key(greh)) = tuple->dst.u.gre.key;
- break;
- case GRE_VERSION_PPTP:
- DEBUGP("call_id -> 0x%04x\n",
- ntohs(tuple->dst.u.gre.key));
- pgreh->call_id = tuple->dst.u.gre.key;
- break;
- default:
- DEBUGP("can't nat unknown GRE version\n");
- return 0;
- break;
- }
- }
- return 1;
-}
-
-/* nat helper struct */
-static struct ip_nat_protocol gre = {
- .name = "GRE",
- .protonum = IPPROTO_GRE,
- .manip_pkt = gre_manip_pkt,
- .in_range = gre_in_range,
- .unique_tuple = gre_unique_tuple,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .range_to_nfattr = ip_nat_port_range_to_nfattr,
- .nfattr_to_range = ip_nat_port_nfattr_to_range,
-#endif
-};
-
-int __init ip_nat_proto_gre_init(void)
-{
- return ip_nat_protocol_register(&gre);
-}
-
-void __exit ip_nat_proto_gre_fini(void)
-{
- ip_nat_protocol_unregister(&gre);
-}
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/icmp.h>
-#include <linux/if.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-
-static int
-icmp_in_range(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max)
-{
- return ntohs(tuple->src.u.icmp.id) >= ntohs(min->icmp.id) &&
- ntohs(tuple->src.u.icmp.id) <= ntohs(max->icmp.id);
-}
-
-static int
-icmp_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack)
-{
- static u_int16_t id;
- unsigned int range_size;
- unsigned int i;
-
- range_size = ntohs(range->max.icmp.id) - ntohs(range->min.icmp.id) + 1;
- /* If no range specified... */
- if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED))
- range_size = 0xFFFF;
-
- for (i = 0; i < range_size; i++, id++) {
- tuple->src.u.icmp.id = htons(ntohs(range->min.icmp.id) +
- (id % range_size));
- if (!ip_nat_used_tuple(tuple, conntrack))
- return 1;
- }
- return 0;
-}
-
-static int
-icmp_manip_pkt(struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype)
-{
- struct iphdr *iph = (struct iphdr *)((*pskb)->data + iphdroff);
- struct icmphdr *hdr;
- unsigned int hdroff = iphdroff + iph->ihl*4;
-
- if (!skb_make_writable(pskb, hdroff + sizeof(*hdr)))
- return 0;
-
- hdr = (struct icmphdr *)((*pskb)->data + hdroff);
- nf_proto_csum_replace2(&hdr->checksum, *pskb,
- hdr->un.echo.id, tuple->src.u.icmp.id, 0);
- hdr->un.echo.id = tuple->src.u.icmp.id;
- return 1;
-}
-
-struct ip_nat_protocol ip_nat_protocol_icmp = {
- .name = "ICMP",
- .protonum = IPPROTO_ICMP,
- .me = THIS_MODULE,
- .manip_pkt = icmp_manip_pkt,
- .in_range = icmp_in_range,
- .unique_tuple = icmp_unique_tuple,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .range_to_nfattr = ip_nat_port_range_to_nfattr,
- .nfattr_to_range = ip_nat_port_nfattr_to_range,
-#endif
-};
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/random.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/if.h>
-#include <linux/netfilter/nfnetlink_conntrack.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-
-static int
-tcp_in_range(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max)
-{
- __be16 port;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- port = tuple->src.u.tcp.port;
- else
- port = tuple->dst.u.tcp.port;
-
- return ntohs(port) >= ntohs(min->tcp.port)
- && ntohs(port) <= ntohs(max->tcp.port);
-}
-
-static int
-tcp_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack)
-{
- static u_int16_t port;
- __be16 *portptr;
- unsigned int range_size, min, i;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- portptr = &tuple->src.u.tcp.port;
- else
- portptr = &tuple->dst.u.tcp.port;
-
- /* If no range specified... */
- if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
- /* If it's dst rewrite, can't change port */
- if (maniptype == IP_NAT_MANIP_DST)
- return 0;
-
- /* Map privileged onto privileged. */
- if (ntohs(*portptr) < 1024) {
- /* Loose convention: >> 512 is credential passing */
- if (ntohs(*portptr)<512) {
- min = 1;
- range_size = 511 - min + 1;
- } else {
- min = 600;
- range_size = 1023 - min + 1;
- }
- } else {
- min = 1024;
- range_size = 65535 - 1024 + 1;
- }
- } else {
- min = ntohs(range->min.tcp.port);
- range_size = ntohs(range->max.tcp.port) - min + 1;
- }
-
- /* Start from random port to avoid prediction */
- if (range->flags & IP_NAT_RANGE_PROTO_RANDOM)
- port = net_random();
-
- for (i = 0; i < range_size; i++, port++) {
- *portptr = htons(min + port % range_size);
- if (!ip_nat_used_tuple(tuple, conntrack)) {
- return 1;
- }
- }
- return 0;
-}
-
-static int
-tcp_manip_pkt(struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype)
-{
- struct iphdr *iph = (struct iphdr *)((*pskb)->data + iphdroff);
- struct tcphdr *hdr;
- unsigned int hdroff = iphdroff + iph->ihl*4;
- __be32 oldip, newip;
- __be16 *portptr, newport, oldport;
- int hdrsize = 8; /* TCP connection tracking guarantees this much */
-
- /* this could be a inner header returned in icmp packet; in such
- cases we cannot update the checksum field since it is outside of
- the 8 bytes of transport layer headers we are guaranteed */
- if ((*pskb)->len >= hdroff + sizeof(struct tcphdr))
- hdrsize = sizeof(struct tcphdr);
-
- if (!skb_make_writable(pskb, hdroff + hdrsize))
- return 0;
-
- iph = (struct iphdr *)((*pskb)->data + iphdroff);
- hdr = (struct tcphdr *)((*pskb)->data + hdroff);
-
- if (maniptype == IP_NAT_MANIP_SRC) {
- /* Get rid of src ip and src pt */
- oldip = iph->saddr;
- newip = tuple->src.ip;
- newport = tuple->src.u.tcp.port;
- portptr = &hdr->source;
- } else {
- /* Get rid of dst ip and dst pt */
- oldip = iph->daddr;
- newip = tuple->dst.ip;
- newport = tuple->dst.u.tcp.port;
- portptr = &hdr->dest;
- }
-
- oldport = *portptr;
- *portptr = newport;
-
- if (hdrsize < sizeof(*hdr))
- return 1;
-
- nf_proto_csum_replace4(&hdr->check, *pskb, oldip, newip, 1);
- nf_proto_csum_replace2(&hdr->check, *pskb, oldport, newport, 0);
- return 1;
-}
-
-struct ip_nat_protocol ip_nat_protocol_tcp = {
- .name = "TCP",
- .protonum = IPPROTO_TCP,
- .me = THIS_MODULE,
- .manip_pkt = tcp_manip_pkt,
- .in_range = tcp_in_range,
- .unique_tuple = tcp_unique_tuple,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .range_to_nfattr = ip_nat_port_range_to_nfattr,
- .nfattr_to_range = ip_nat_port_nfattr_to_range,
-#endif
-};
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/random.h>
-#include <linux/netfilter.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-#include <linux/if.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-
-static int
-udp_in_range(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max)
-{
- __be16 port;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- port = tuple->src.u.udp.port;
- else
- port = tuple->dst.u.udp.port;
-
- return ntohs(port) >= ntohs(min->udp.port)
- && ntohs(port) <= ntohs(max->udp.port);
-}
-
-static int
-udp_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack)
-{
- static u_int16_t port;
- __be16 *portptr;
- unsigned int range_size, min, i;
-
- if (maniptype == IP_NAT_MANIP_SRC)
- portptr = &tuple->src.u.udp.port;
- else
- portptr = &tuple->dst.u.udp.port;
-
- /* If no range specified... */
- if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
- /* If it's dst rewrite, can't change port */
- if (maniptype == IP_NAT_MANIP_DST)
- return 0;
-
- if (ntohs(*portptr) < 1024) {
- /* Loose convention: >> 512 is credential passing */
- if (ntohs(*portptr)<512) {
- min = 1;
- range_size = 511 - min + 1;
- } else {
- min = 600;
- range_size = 1023 - min + 1;
- }
- } else {
- min = 1024;
- range_size = 65535 - 1024 + 1;
- }
- } else {
- min = ntohs(range->min.udp.port);
- range_size = ntohs(range->max.udp.port) - min + 1;
- }
-
- /* Start from random port to avoid prediction */
- if (range->flags & IP_NAT_RANGE_PROTO_RANDOM)
- port = net_random();
-
- for (i = 0; i < range_size; i++, port++) {
- *portptr = htons(min + port % range_size);
- if (!ip_nat_used_tuple(tuple, conntrack))
- return 1;
- }
- return 0;
-}
-
-static int
-udp_manip_pkt(struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype)
-{
- struct iphdr *iph = (struct iphdr *)((*pskb)->data + iphdroff);
- struct udphdr *hdr;
- unsigned int hdroff = iphdroff + iph->ihl*4;
- __be32 oldip, newip;
- __be16 *portptr, newport;
-
- if (!skb_make_writable(pskb, hdroff + sizeof(*hdr)))
- return 0;
-
- iph = (struct iphdr *)((*pskb)->data + iphdroff);
- hdr = (struct udphdr *)((*pskb)->data + hdroff);
-
- if (maniptype == IP_NAT_MANIP_SRC) {
- /* Get rid of src ip and src pt */
- oldip = iph->saddr;
- newip = tuple->src.ip;
- newport = tuple->src.u.udp.port;
- portptr = &hdr->source;
- } else {
- /* Get rid of dst ip and dst pt */
- oldip = iph->daddr;
- newip = tuple->dst.ip;
- newport = tuple->dst.u.udp.port;
- portptr = &hdr->dest;
- }
-
- if (hdr->check || (*pskb)->ip_summed == CHECKSUM_PARTIAL) {
- nf_proto_csum_replace4(&hdr->check, *pskb, oldip, newip, 1);
- nf_proto_csum_replace2(&hdr->check, *pskb, *portptr, newport, 0);
- if (!hdr->check)
- hdr->check = CSUM_MANGLED_0;
- }
- *portptr = newport;
- return 1;
-}
-
-struct ip_nat_protocol ip_nat_protocol_udp = {
- .name = "UDP",
- .protonum = IPPROTO_UDP,
- .me = THIS_MODULE,
- .manip_pkt = udp_manip_pkt,
- .in_range = udp_in_range,
- .unique_tuple = udp_unique_tuple,
-#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
- defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
- .range_to_nfattr = ip_nat_port_range_to_nfattr,
- .nfattr_to_range = ip_nat_port_nfattr_to_range,
-#endif
-};
+++ /dev/null
-/* The "unknown" protocol. This is what is used for protocols we
- * don't understand. It's returned by ip_ct_find_proto().
- */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/netfilter.h>
-#include <linux/if.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-
-static int unknown_in_range(const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type manip_type,
- const union ip_conntrack_manip_proto *min,
- const union ip_conntrack_manip_proto *max)
-{
- return 1;
-}
-
-static int unknown_unique_tuple(struct ip_conntrack_tuple *tuple,
- const struct ip_nat_range *range,
- enum ip_nat_manip_type maniptype,
- const struct ip_conntrack *conntrack)
-{
- /* Sorry: we can't help you; if it's not unique, we can't frob
- anything. */
- return 0;
-}
-
-static int
-unknown_manip_pkt(struct sk_buff **pskb,
- unsigned int iphdroff,
- const struct ip_conntrack_tuple *tuple,
- enum ip_nat_manip_type maniptype)
-{
- return 1;
-}
-
-struct ip_nat_protocol ip_nat_unknown_protocol = {
- .name = "unknown",
- /* .me isn't set: getting a ref to this cannot fail. */
- .manip_pkt = unknown_manip_pkt,
- .in_range = unknown_in_range,
- .unique_tuple = unknown_unique_tuple,
-};
+++ /dev/null
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* Everything about the rules for NAT. */
-#include <linux/types.h>
-#include <linux/ip.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/module.h>
-#include <linux/kmod.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <net/checksum.h>
-#include <net/route.h>
-#include <linux/bitops.h>
-
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-#define NAT_VALID_HOOKS ((1<<NF_IP_PRE_ROUTING) | (1<<NF_IP_POST_ROUTING) | (1<<NF_IP_LOCAL_OUT))
-
-static struct
-{
- struct ipt_replace repl;
- struct ipt_standard entries[3];
- struct ipt_error term;
-} nat_initial_table __initdata
-= { { "nat", NAT_VALID_HOOKS, 4,
- sizeof(struct ipt_standard) * 3 + sizeof(struct ipt_error),
- { [NF_IP_PRE_ROUTING] = 0,
- [NF_IP_POST_ROUTING] = sizeof(struct ipt_standard),
- [NF_IP_LOCAL_OUT] = sizeof(struct ipt_standard) * 2 },
- { [NF_IP_PRE_ROUTING] = 0,
- [NF_IP_POST_ROUTING] = sizeof(struct ipt_standard),
- [NF_IP_LOCAL_OUT] = sizeof(struct ipt_standard) * 2 },
- 0, NULL, { } },
- {
- /* PRE_ROUTING */
- { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
- 0,
- sizeof(struct ipt_entry),
- sizeof(struct ipt_standard),
- 0, { 0, 0 }, { } },
- { { { { IPT_ALIGN(sizeof(struct ipt_standard_target)), "" } }, { } },
- -NF_ACCEPT - 1 } },
- /* POST_ROUTING */
- { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
- 0,
- sizeof(struct ipt_entry),
- sizeof(struct ipt_standard),
- 0, { 0, 0 }, { } },
- { { { { IPT_ALIGN(sizeof(struct ipt_standard_target)), "" } }, { } },
- -NF_ACCEPT - 1 } },
- /* LOCAL_OUT */
- { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
- 0,
- sizeof(struct ipt_entry),
- sizeof(struct ipt_standard),
- 0, { 0, 0 }, { } },
- { { { { IPT_ALIGN(sizeof(struct ipt_standard_target)), "" } }, { } },
- -NF_ACCEPT - 1 } }
- },
- /* ERROR */
- { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
- 0,
- sizeof(struct ipt_entry),
- sizeof(struct ipt_error),
- 0, { 0, 0 }, { } },
- { { { { IPT_ALIGN(sizeof(struct ipt_error_target)), IPT_ERROR_TARGET } },
- { } },
- "ERROR"
- }
- }
-};
-
-static struct xt_table nat_table = {
- .name = "nat",
- .valid_hooks = NAT_VALID_HOOKS,
- .lock = RW_LOCK_UNLOCKED,
- .me = THIS_MODULE,
- .af = AF_INET,
-};
-
-/* Source NAT */
-static unsigned int ipt_snat_target(struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- unsigned int hooknum,
- const struct xt_target *target,
- const void *targinfo)
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- const struct ip_nat_multi_range_compat *mr = targinfo;
-
- IP_NF_ASSERT(hooknum == NF_IP_POST_ROUTING);
-
- ct = ip_conntrack_get(*pskb, &ctinfo);
-
- /* Connection must be valid and new. */
- IP_NF_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED
- || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY));
- IP_NF_ASSERT(out);
-
- return ip_nat_setup_info(ct, &mr->range[0], hooknum);
-}
-
-/* Before 2.6.11 we did implicit source NAT if required. Warn about change. */
-static void warn_if_extra_mangle(__be32 dstip, __be32 srcip)
-{
- static int warned = 0;
- struct flowi fl = { .nl_u = { .ip4_u = { .daddr = dstip } } };
- struct rtable *rt;
-
- if (ip_route_output_key(&rt, &fl) != 0)
- return;
-
- if (rt->rt_src != srcip && !warned) {
- printk("NAT: no longer support implicit source local NAT\n");
- printk("NAT: packet src %u.%u.%u.%u -> dst %u.%u.%u.%u\n",
- NIPQUAD(srcip), NIPQUAD(dstip));
- warned = 1;
- }
- ip_rt_put(rt);
-}
-
-static unsigned int ipt_dnat_target(struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- unsigned int hooknum,
- const struct xt_target *target,
- const void *targinfo)
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- const struct ip_nat_multi_range_compat *mr = targinfo;
-
- IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING
- || hooknum == NF_IP_LOCAL_OUT);
-
- ct = ip_conntrack_get(*pskb, &ctinfo);
-
- /* Connection must be valid and new. */
- IP_NF_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED));
-
- if (hooknum == NF_IP_LOCAL_OUT
- && mr->range[0].flags & IP_NAT_RANGE_MAP_IPS)
- warn_if_extra_mangle((*pskb)->nh.iph->daddr,
- mr->range[0].min_ip);
-
- return ip_nat_setup_info(ct, &mr->range[0], hooknum);
-}
-
-static int ipt_snat_checkentry(const char *tablename,
- const void *entry,
- const struct xt_target *target,
- void *targinfo,
- unsigned int hook_mask)
-{
- struct ip_nat_multi_range_compat *mr = targinfo;
-
- /* Must be a valid range */
- if (mr->rangesize != 1) {
- printk("SNAT: multiple ranges no longer supported\n");
- return 0;
- }
- return 1;
-}
-
-static int ipt_dnat_checkentry(const char *tablename,
- const void *entry,
- const struct xt_target *target,
- void *targinfo,
- unsigned int hook_mask)
-{
- struct ip_nat_multi_range_compat *mr = targinfo;
-
- /* Must be a valid range */
- if (mr->rangesize != 1) {
- printk("DNAT: multiple ranges no longer supported\n");
- return 0;
- }
- if (mr->range[0].flags & IP_NAT_RANGE_PROTO_RANDOM) {
- printk("DNAT: port randomization not supported\n");
- return 0;
- }
- return 1;
-}
-
-inline unsigned int
-alloc_null_binding(struct ip_conntrack *conntrack,
- struct ip_nat_info *info,
- unsigned int hooknum)
-{
- /* Force range to this IP; let proto decide mapping for
- per-proto parts (hence not IP_NAT_RANGE_PROTO_SPECIFIED).
- Use reply in case it's already been mangled (eg local packet).
- */
- __be32 ip
- = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
- ? conntrack->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip
- : conntrack->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip);
- struct ip_nat_range range
- = { IP_NAT_RANGE_MAP_IPS, ip, ip, { 0 }, { 0 } };
-
- DEBUGP("Allocating NULL binding for %p (%u.%u.%u.%u)\n", conntrack,
- NIPQUAD(ip));
- return ip_nat_setup_info(conntrack, &range, hooknum);
-}
-
-unsigned int
-alloc_null_binding_confirmed(struct ip_conntrack *conntrack,
- struct ip_nat_info *info,
- unsigned int hooknum)
-{
- __be32 ip
- = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
- ? conntrack->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip
- : conntrack->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip);
- u_int16_t all
- = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
- ? conntrack->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.all
- : conntrack->tuplehash[IP_CT_DIR_REPLY].tuple.src.u.all);
- struct ip_nat_range range
- = { IP_NAT_RANGE_MAP_IPS, ip, ip, { all }, { all } };
-
- DEBUGP("Allocating NULL binding for confirmed %p (%u.%u.%u.%u)\n",
- conntrack, NIPQUAD(ip));
- return ip_nat_setup_info(conntrack, &range, hooknum);
-}
-
-int ip_nat_rule_find(struct sk_buff **pskb,
- unsigned int hooknum,
- const struct net_device *in,
- const struct net_device *out,
- struct ip_conntrack *ct,
- struct ip_nat_info *info)
-{
- int ret;
-
- ret = ipt_do_table(pskb, hooknum, in, out, &nat_table);
-
- if (ret == NF_ACCEPT) {
- if (!ip_nat_initialized(ct, HOOK2MANIP(hooknum)))
- /* NUL mapping */
- ret = alloc_null_binding(ct, info, hooknum);
- }
- return ret;
-}
-
-static struct xt_target ipt_snat_reg = {
- .name = "SNAT",
- .family = AF_INET,
- .target = ipt_snat_target,
- .targetsize = sizeof(struct ip_nat_multi_range_compat),
- .table = "nat",
- .hooks = 1 << NF_IP_POST_ROUTING,
- .checkentry = ipt_snat_checkentry,
-};
-
-static struct xt_target ipt_dnat_reg = {
- .name = "DNAT",
- .family = AF_INET,
- .target = ipt_dnat_target,
- .targetsize = sizeof(struct ip_nat_multi_range_compat),
- .table = "nat",
- .hooks = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT),
- .checkentry = ipt_dnat_checkentry,
-};
-
-int __init ip_nat_rule_init(void)
-{
- int ret;
-
- ret = ipt_register_table(&nat_table, &nat_initial_table.repl);
- if (ret != 0)
- return ret;
- ret = xt_register_target(&ipt_snat_reg);
- if (ret != 0)
- goto unregister_table;
-
- ret = xt_register_target(&ipt_dnat_reg);
- if (ret != 0)
- goto unregister_snat;
-
- return ret;
-
- unregister_snat:
- xt_unregister_target(&ipt_snat_reg);
- unregister_table:
- xt_unregister_table(&nat_table);
-
- return ret;
-}
-
-void ip_nat_rule_cleanup(void)
-{
- xt_unregister_target(&ipt_dnat_reg);
- xt_unregister_target(&ipt_snat_reg);
- ipt_unregister_table(&nat_table);
-}
+++ /dev/null
-/* SIP extension for UDP NAT alteration.
- *
- * (C) 2005 by Christian Hentschel <chentschel@arnet.com.ar>
- * based on RR's ip_nat_ftp.c and other modules.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_sip.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Hentschel <chentschel@arnet.com.ar>");
-MODULE_DESCRIPTION("SIP NAT helper");
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-struct addr_map {
- struct {
- char src[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
- char dst[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
- unsigned int srclen, srciplen;
- unsigned int dstlen, dstiplen;
- } addr[IP_CT_DIR_MAX];
-};
-
-static void addr_map_init(struct ip_conntrack *ct, struct addr_map *map)
-{
- struct ip_conntrack_tuple *t;
- enum ip_conntrack_dir dir;
- unsigned int n;
-
- for (dir = 0; dir < IP_CT_DIR_MAX; dir++) {
- t = &ct->tuplehash[dir].tuple;
-
- n = sprintf(map->addr[dir].src, "%u.%u.%u.%u",
- NIPQUAD(t->src.ip));
- map->addr[dir].srciplen = n;
- n += sprintf(map->addr[dir].src + n, ":%u",
- ntohs(t->src.u.udp.port));
- map->addr[dir].srclen = n;
-
- n = sprintf(map->addr[dir].dst, "%u.%u.%u.%u",
- NIPQUAD(t->dst.ip));
- map->addr[dir].dstiplen = n;
- n += sprintf(map->addr[dir].dst + n, ":%u",
- ntohs(t->dst.u.udp.port));
- map->addr[dir].dstlen = n;
- }
-}
-
-static int map_sip_addr(struct sk_buff **pskb, enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct, const char **dptr, size_t dlen,
- enum sip_header_pos pos, struct addr_map *map)
-{
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
- unsigned int matchlen, matchoff, addrlen;
- char *addr;
-
- if (ct_sip_get_info(*dptr, dlen, &matchoff, &matchlen, pos) <= 0)
- return 1;
-
- if ((matchlen == map->addr[dir].srciplen ||
- matchlen == map->addr[dir].srclen) &&
- memcmp(*dptr + matchoff, map->addr[dir].src, matchlen) == 0) {
- addr = map->addr[!dir].dst;
- addrlen = map->addr[!dir].dstlen;
- } else if ((matchlen == map->addr[dir].dstiplen ||
- matchlen == map->addr[dir].dstlen) &&
- memcmp(*dptr + matchoff, map->addr[dir].dst, matchlen) == 0) {
- addr = map->addr[!dir].src;
- addrlen = map->addr[!dir].srclen;
- } else
- return 1;
-
- if (!ip_nat_mangle_udp_packet(pskb, ct, ctinfo,
- matchoff, matchlen, addr, addrlen))
- return 0;
- *dptr = (*pskb)->data + (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
- return 1;
-
-}
-
-static unsigned int ip_nat_sip(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct,
- const char **dptr)
-{
- enum sip_header_pos pos;
- struct addr_map map;
- int dataoff, datalen;
-
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
- datalen = (*pskb)->len - dataoff;
- if (datalen < sizeof("SIP/2.0") - 1)
- return NF_DROP;
-
- addr_map_init(ct, &map);
-
- /* Basic rules: requests and responses. */
- if (strncmp(*dptr, "SIP/2.0", sizeof("SIP/2.0") - 1) != 0) {
- /* 10.2: Constructing the REGISTER Request:
- *
- * The "userinfo" and "@" components of the SIP URI MUST NOT
- * be present.
- */
- if (datalen >= sizeof("REGISTER") - 1 &&
- strncmp(*dptr, "REGISTER", sizeof("REGISTER") - 1) == 0)
- pos = POS_REG_REQ_URI;
- else
- pos = POS_REQ_URI;
-
- if (!map_sip_addr(pskb, ctinfo, ct, dptr, datalen, pos, &map))
- return NF_DROP;
- }
-
- if (!map_sip_addr(pskb, ctinfo, ct, dptr, datalen, POS_FROM, &map) ||
- !map_sip_addr(pskb, ctinfo, ct, dptr, datalen, POS_TO, &map) ||
- !map_sip_addr(pskb, ctinfo, ct, dptr, datalen, POS_VIA, &map) ||
- !map_sip_addr(pskb, ctinfo, ct, dptr, datalen, POS_CONTACT, &map))
- return NF_DROP;
- return NF_ACCEPT;
-}
-
-static unsigned int mangle_sip_packet(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct,
- const char **dptr, size_t dlen,
- char *buffer, int bufflen,
- enum sip_header_pos pos)
-{
- unsigned int matchlen, matchoff;
-
- if (ct_sip_get_info(*dptr, dlen, &matchoff, &matchlen, pos) <= 0)
- return 0;
-
- if (!ip_nat_mangle_udp_packet(pskb, ct, ctinfo,
- matchoff, matchlen, buffer, bufflen))
- return 0;
-
- /* We need to reload this. Thanks Patrick. */
- *dptr = (*pskb)->data + (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
- return 1;
-}
-
-static int mangle_content_len(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct,
- const char *dptr)
-{
- unsigned int dataoff, matchoff, matchlen;
- char buffer[sizeof("65536")];
- int bufflen;
-
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
-
- /* Get actual SDP lenght */
- if (ct_sip_get_info(dptr, (*pskb)->len - dataoff, &matchoff,
- &matchlen, POS_SDP_HEADER) > 0) {
-
- /* since ct_sip_get_info() give us a pointer passing 'v='
- we need to add 2 bytes in this count. */
- int c_len = (*pskb)->len - dataoff - matchoff + 2;
-
- /* Now, update SDP lenght */
- if (ct_sip_get_info(dptr, (*pskb)->len - dataoff, &matchoff,
- &matchlen, POS_CONTENT) > 0) {
-
- bufflen = sprintf(buffer, "%u", c_len);
-
- return ip_nat_mangle_udp_packet(pskb, ct, ctinfo,
- matchoff, matchlen,
- buffer, bufflen);
- }
- }
- return 0;
-}
-
-static unsigned int mangle_sdp(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack *ct,
- __be32 newip, u_int16_t port,
- const char *dptr)
-{
- char buffer[sizeof("nnn.nnn.nnn.nnn")];
- unsigned int dataoff, bufflen;
-
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
-
- /* Mangle owner and contact info. */
- bufflen = sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(newip));
- if (!mangle_sip_packet(pskb, ctinfo, ct, &dptr, (*pskb)->len - dataoff,
- buffer, bufflen, POS_OWNER))
- return 0;
-
- if (!mangle_sip_packet(pskb, ctinfo, ct, &dptr, (*pskb)->len - dataoff,
- buffer, bufflen, POS_CONNECTION))
- return 0;
-
- /* Mangle media port. */
- bufflen = sprintf(buffer, "%u", port);
- if (!mangle_sip_packet(pskb, ctinfo, ct, &dptr, (*pskb)->len - dataoff,
- buffer, bufflen, POS_MEDIA))
- return 0;
-
- return mangle_content_len(pskb, ctinfo, ct, dptr);
-}
-
-/* So, this packet has hit the connection tracking matching code.
- Mangle it, and change the expectation to match the new version. */
-static unsigned int ip_nat_sdp(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp,
- const char *dptr)
-{
- struct ip_conntrack *ct = exp->master;
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
- __be32 newip;
- u_int16_t port;
-
- DEBUGP("ip_nat_sdp():\n");
-
- /* Connection will come from reply */
- newip = ct->tuplehash[!dir].tuple.dst.ip;
-
- exp->tuple.dst.ip = newip;
- exp->saved_proto.udp.port = exp->tuple.dst.u.udp.port;
- exp->dir = !dir;
-
- /* When you see the packet, we need to NAT it the same as the
- this one. */
- exp->expectfn = ip_nat_follow_master;
-
- /* Try to get same port: if not, try to change it. */
- for (port = ntohs(exp->saved_proto.udp.port); port != 0; port++) {
- exp->tuple.dst.u.udp.port = htons(port);
- if (ip_conntrack_expect_related(exp) == 0)
- break;
- }
-
- if (port == 0)
- return NF_DROP;
-
- if (!mangle_sdp(pskb, ctinfo, ct, newip, port, dptr)) {
- ip_conntrack_unexpect_related(exp);
- return NF_DROP;
- }
- return NF_ACCEPT;
-}
-
-static void __exit fini(void)
-{
- rcu_assign_pointer(ip_nat_sip_hook, NULL);
- rcu_assign_pointer(ip_nat_sdp_hook, NULL);
- synchronize_rcu();
-}
-
-static int __init init(void)
-{
- BUG_ON(rcu_dereference(ip_nat_sip_hook));
- BUG_ON(rcu_dereference(ip_nat_sdp_hook));
- rcu_assign_pointer(ip_nat_sip_hook, ip_nat_sip);
- rcu_assign_pointer(ip_nat_sdp_hook, ip_nat_sdp);
- return 0;
-}
-
-module_init(init);
-module_exit(fini);
+++ /dev/null
-/*
- * ip_nat_snmp_basic.c
- *
- * Basic SNMP Application Layer Gateway
- *
- * This IP NAT module is intended for use with SNMP network
- * discovery and monitoring applications where target networks use
- * conflicting private address realms.
- *
- * Static NAT is used to remap the networks from the view of the network
- * management system at the IP layer, and this module remaps some application
- * layer addresses to match.
- *
- * The simplest form of ALG is performed, where only tagged IP addresses
- * are modified. The module does not need to be MIB aware and only scans
- * messages at the ASN.1/BER level.
- *
- * Currently, only SNMPv1 and SNMPv2 are supported.
- *
- * More information on ALG and associated issues can be found in
- * RFC 2962
- *
- * The ASB.1/BER parsing code is derived from the gxsnmp package by Gregory
- * McLean & Jochen Friedrich, stripped down for use in the kernel.
- *
- * Copyright (c) 2000 RP Internet (www.rpi.net.au).
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Author: James Morris <jmorris@intercode.com.au>
- *
- * Updates:
- * 2000-08-06: Convert to new helper API (Harald Welte).
- *
- */
-#include <linux/in.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/moduleparam.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-#include <net/checksum.h>
-#include <net/udp.h>
-#include <asm/uaccess.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
-MODULE_DESCRIPTION("Basic SNMP Application Layer Gateway");
-
-#define SNMP_PORT 161
-#define SNMP_TRAP_PORT 162
-#define NOCT1(n) (*(u8 *)n)
-
-static int debug;
-static DEFINE_SPINLOCK(snmp_lock);
-
-/*
- * Application layer address mapping mimics the NAT mapping, but
- * only for the first octet in this case (a more flexible system
- * can be implemented if needed).
- */
-struct oct1_map
-{
- u_int8_t from;
- u_int8_t to;
-};
-
-
-/*****************************************************************************
- *
- * Basic ASN.1 decoding routines (gxsnmp author Dirk Wisse)
- *
- *****************************************************************************/
-
-/* Class */
-#define ASN1_UNI 0 /* Universal */
-#define ASN1_APL 1 /* Application */
-#define ASN1_CTX 2 /* Context */
-#define ASN1_PRV 3 /* Private */
-
-/* Tag */
-#define ASN1_EOC 0 /* End Of Contents */
-#define ASN1_BOL 1 /* Boolean */
-#define ASN1_INT 2 /* Integer */
-#define ASN1_BTS 3 /* Bit String */
-#define ASN1_OTS 4 /* Octet String */
-#define ASN1_NUL 5 /* Null */
-#define ASN1_OJI 6 /* Object Identifier */
-#define ASN1_OJD 7 /* Object Description */
-#define ASN1_EXT 8 /* External */
-#define ASN1_SEQ 16 /* Sequence */
-#define ASN1_SET 17 /* Set */
-#define ASN1_NUMSTR 18 /* Numerical String */
-#define ASN1_PRNSTR 19 /* Printable String */
-#define ASN1_TEXSTR 20 /* Teletext String */
-#define ASN1_VIDSTR 21 /* Video String */
-#define ASN1_IA5STR 22 /* IA5 String */
-#define ASN1_UNITIM 23 /* Universal Time */
-#define ASN1_GENTIM 24 /* General Time */
-#define ASN1_GRASTR 25 /* Graphical String */
-#define ASN1_VISSTR 26 /* Visible String */
-#define ASN1_GENSTR 27 /* General String */
-
-/* Primitive / Constructed methods*/
-#define ASN1_PRI 0 /* Primitive */
-#define ASN1_CON 1 /* Constructed */
-
-/*
- * Error codes.
- */
-#define ASN1_ERR_NOERROR 0
-#define ASN1_ERR_DEC_EMPTY 2
-#define ASN1_ERR_DEC_EOC_MISMATCH 3
-#define ASN1_ERR_DEC_LENGTH_MISMATCH 4
-#define ASN1_ERR_DEC_BADVALUE 5
-
-/*
- * ASN.1 context.
- */
-struct asn1_ctx
-{
- int error; /* Error condition */
- unsigned char *pointer; /* Octet just to be decoded */
- unsigned char *begin; /* First octet */
- unsigned char *end; /* Octet after last octet */
-};
-
-/*
- * Octet string (not null terminated)
- */
-struct asn1_octstr
-{
- unsigned char *data;
- unsigned int len;
-};
-
-static void asn1_open(struct asn1_ctx *ctx,
- unsigned char *buf,
- unsigned int len)
-{
- ctx->begin = buf;
- ctx->end = buf + len;
- ctx->pointer = buf;
- ctx->error = ASN1_ERR_NOERROR;
-}
-
-static unsigned char asn1_octet_decode(struct asn1_ctx *ctx, unsigned char *ch)
-{
- if (ctx->pointer >= ctx->end) {
- ctx->error = ASN1_ERR_DEC_EMPTY;
- return 0;
- }
- *ch = *(ctx->pointer)++;
- return 1;
-}
-
-static unsigned char asn1_tag_decode(struct asn1_ctx *ctx, unsigned int *tag)
-{
- unsigned char ch;
-
- *tag = 0;
-
- do
- {
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
- *tag <<= 7;
- *tag |= ch & 0x7F;
- } while ((ch & 0x80) == 0x80);
- return 1;
-}
-
-static unsigned char asn1_id_decode(struct asn1_ctx *ctx,
- unsigned int *cls,
- unsigned int *con,
- unsigned int *tag)
-{
- unsigned char ch;
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *cls = (ch & 0xC0) >> 6;
- *con = (ch & 0x20) >> 5;
- *tag = (ch & 0x1F);
-
- if (*tag == 0x1F) {
- if (!asn1_tag_decode(ctx, tag))
- return 0;
- }
- return 1;
-}
-
-static unsigned char asn1_length_decode(struct asn1_ctx *ctx,
- unsigned int *def,
- unsigned int *len)
-{
- unsigned char ch, cnt;
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- if (ch == 0x80)
- *def = 0;
- else {
- *def = 1;
-
- if (ch < 0x80)
- *len = ch;
- else {
- cnt = (unsigned char) (ch & 0x7F);
- *len = 0;
-
- while (cnt > 0) {
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
- *len <<= 8;
- *len |= ch;
- cnt--;
- }
- }
- }
- return 1;
-}
-
-static unsigned char asn1_header_decode(struct asn1_ctx *ctx,
- unsigned char **eoc,
- unsigned int *cls,
- unsigned int *con,
- unsigned int *tag)
-{
- unsigned int def, len;
-
- if (!asn1_id_decode(ctx, cls, con, tag))
- return 0;
-
- def = len = 0;
- if (!asn1_length_decode(ctx, &def, &len))
- return 0;
-
- if (def)
- *eoc = ctx->pointer + len;
- else
- *eoc = NULL;
- return 1;
-}
-
-static unsigned char asn1_eoc_decode(struct asn1_ctx *ctx, unsigned char *eoc)
-{
- unsigned char ch;
-
- if (eoc == 0) {
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- if (ch != 0x00) {
- ctx->error = ASN1_ERR_DEC_EOC_MISMATCH;
- return 0;
- }
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- if (ch != 0x00) {
- ctx->error = ASN1_ERR_DEC_EOC_MISMATCH;
- return 0;
- }
- return 1;
- } else {
- if (ctx->pointer != eoc) {
- ctx->error = ASN1_ERR_DEC_LENGTH_MISMATCH;
- return 0;
- }
- return 1;
- }
-}
-
-static unsigned char asn1_null_decode(struct asn1_ctx *ctx, unsigned char *eoc)
-{
- ctx->pointer = eoc;
- return 1;
-}
-
-static unsigned char asn1_long_decode(struct asn1_ctx *ctx,
- unsigned char *eoc,
- long *integer)
-{
- unsigned char ch;
- unsigned int len;
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *integer = (signed char) ch;
- len = 1;
-
- while (ctx->pointer < eoc) {
- if (++len > sizeof (long)) {
- ctx->error = ASN1_ERR_DEC_BADVALUE;
- return 0;
- }
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *integer <<= 8;
- *integer |= ch;
- }
- return 1;
-}
-
-static unsigned char asn1_uint_decode(struct asn1_ctx *ctx,
- unsigned char *eoc,
- unsigned int *integer)
-{
- unsigned char ch;
- unsigned int len;
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *integer = ch;
- if (ch == 0) len = 0;
- else len = 1;
-
- while (ctx->pointer < eoc) {
- if (++len > sizeof (unsigned int)) {
- ctx->error = ASN1_ERR_DEC_BADVALUE;
- return 0;
- }
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *integer <<= 8;
- *integer |= ch;
- }
- return 1;
-}
-
-static unsigned char asn1_ulong_decode(struct asn1_ctx *ctx,
- unsigned char *eoc,
- unsigned long *integer)
-{
- unsigned char ch;
- unsigned int len;
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *integer = ch;
- if (ch == 0) len = 0;
- else len = 1;
-
- while (ctx->pointer < eoc) {
- if (++len > sizeof (unsigned long)) {
- ctx->error = ASN1_ERR_DEC_BADVALUE;
- return 0;
- }
-
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *integer <<= 8;
- *integer |= ch;
- }
- return 1;
-}
-
-static unsigned char asn1_octets_decode(struct asn1_ctx *ctx,
- unsigned char *eoc,
- unsigned char **octets,
- unsigned int *len)
-{
- unsigned char *ptr;
-
- *len = 0;
-
- *octets = kmalloc(eoc - ctx->pointer, GFP_ATOMIC);
- if (*octets == NULL) {
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
-
- ptr = *octets;
- while (ctx->pointer < eoc) {
- if (!asn1_octet_decode(ctx, (unsigned char *)ptr++)) {
- kfree(*octets);
- *octets = NULL;
- return 0;
- }
- (*len)++;
- }
- return 1;
-}
-
-static unsigned char asn1_subid_decode(struct asn1_ctx *ctx,
- unsigned long *subid)
-{
- unsigned char ch;
-
- *subid = 0;
-
- do {
- if (!asn1_octet_decode(ctx, &ch))
- return 0;
-
- *subid <<= 7;
- *subid |= ch & 0x7F;
- } while ((ch & 0x80) == 0x80);
- return 1;
-}
-
-static unsigned char asn1_oid_decode(struct asn1_ctx *ctx,
- unsigned char *eoc,
- unsigned long **oid,
- unsigned int *len)
-{
- unsigned long subid;
- unsigned int size;
- unsigned long *optr;
-
- size = eoc - ctx->pointer + 1;
- *oid = kmalloc(size * sizeof(unsigned long), GFP_ATOMIC);
- if (*oid == NULL) {
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
-
- optr = *oid;
-
- if (!asn1_subid_decode(ctx, &subid)) {
- kfree(*oid);
- *oid = NULL;
- return 0;
- }
-
- if (subid < 40) {
- optr [0] = 0;
- optr [1] = subid;
- } else if (subid < 80) {
- optr [0] = 1;
- optr [1] = subid - 40;
- } else {
- optr [0] = 2;
- optr [1] = subid - 80;
- }
-
- *len = 2;
- optr += 2;
-
- while (ctx->pointer < eoc) {
- if (++(*len) > size) {
- ctx->error = ASN1_ERR_DEC_BADVALUE;
- kfree(*oid);
- *oid = NULL;
- return 0;
- }
-
- if (!asn1_subid_decode(ctx, optr++)) {
- kfree(*oid);
- *oid = NULL;
- return 0;
- }
- }
- return 1;
-}
-
-/*****************************************************************************
- *
- * SNMP decoding routines (gxsnmp author Dirk Wisse)
- *
- *****************************************************************************/
-
-/* SNMP Versions */
-#define SNMP_V1 0
-#define SNMP_V2C 1
-#define SNMP_V2 2
-#define SNMP_V3 3
-
-/* Default Sizes */
-#define SNMP_SIZE_COMM 256
-#define SNMP_SIZE_OBJECTID 128
-#define SNMP_SIZE_BUFCHR 256
-#define SNMP_SIZE_BUFINT 128
-#define SNMP_SIZE_SMALLOBJECTID 16
-
-/* Requests */
-#define SNMP_PDU_GET 0
-#define SNMP_PDU_NEXT 1
-#define SNMP_PDU_RESPONSE 2
-#define SNMP_PDU_SET 3
-#define SNMP_PDU_TRAP1 4
-#define SNMP_PDU_BULK 5
-#define SNMP_PDU_INFORM 6
-#define SNMP_PDU_TRAP2 7
-
-/* Errors */
-#define SNMP_NOERROR 0
-#define SNMP_TOOBIG 1
-#define SNMP_NOSUCHNAME 2
-#define SNMP_BADVALUE 3
-#define SNMP_READONLY 4
-#define SNMP_GENERROR 5
-#define SNMP_NOACCESS 6
-#define SNMP_WRONGTYPE 7
-#define SNMP_WRONGLENGTH 8
-#define SNMP_WRONGENCODING 9
-#define SNMP_WRONGVALUE 10
-#define SNMP_NOCREATION 11
-#define SNMP_INCONSISTENTVALUE 12
-#define SNMP_RESOURCEUNAVAILABLE 13
-#define SNMP_COMMITFAILED 14
-#define SNMP_UNDOFAILED 15
-#define SNMP_AUTHORIZATIONERROR 16
-#define SNMP_NOTWRITABLE 17
-#define SNMP_INCONSISTENTNAME 18
-
-/* General SNMP V1 Traps */
-#define SNMP_TRAP_COLDSTART 0
-#define SNMP_TRAP_WARMSTART 1
-#define SNMP_TRAP_LINKDOWN 2
-#define SNMP_TRAP_LINKUP 3
-#define SNMP_TRAP_AUTFAILURE 4
-#define SNMP_TRAP_EQPNEIGHBORLOSS 5
-#define SNMP_TRAP_ENTSPECIFIC 6
-
-/* SNMPv1 Types */
-#define SNMP_NULL 0
-#define SNMP_INTEGER 1 /* l */
-#define SNMP_OCTETSTR 2 /* c */
-#define SNMP_DISPLAYSTR 2 /* c */
-#define SNMP_OBJECTID 3 /* ul */
-#define SNMP_IPADDR 4 /* uc */
-#define SNMP_COUNTER 5 /* ul */
-#define SNMP_GAUGE 6 /* ul */
-#define SNMP_TIMETICKS 7 /* ul */
-#define SNMP_OPAQUE 8 /* c */
-
-/* Additional SNMPv2 Types */
-#define SNMP_UINTEGER 5 /* ul */
-#define SNMP_BITSTR 9 /* uc */
-#define SNMP_NSAP 10 /* uc */
-#define SNMP_COUNTER64 11 /* ul */
-#define SNMP_NOSUCHOBJECT 12
-#define SNMP_NOSUCHINSTANCE 13
-#define SNMP_ENDOFMIBVIEW 14
-
-union snmp_syntax
-{
- unsigned char uc[0]; /* 8 bit unsigned */
- char c[0]; /* 8 bit signed */
- unsigned long ul[0]; /* 32 bit unsigned */
- long l[0]; /* 32 bit signed */
-};
-
-struct snmp_object
-{
- unsigned long *id;
- unsigned int id_len;
- unsigned short type;
- unsigned int syntax_len;
- union snmp_syntax syntax;
-};
-
-struct snmp_request
-{
- unsigned long id;
- unsigned int error_status;
- unsigned int error_index;
-};
-
-struct snmp_v1_trap
-{
- unsigned long *id;
- unsigned int id_len;
- unsigned long ip_address; /* pointer */
- unsigned int general;
- unsigned int specific;
- unsigned long time;
-};
-
-/* SNMP types */
-#define SNMP_IPA 0
-#define SNMP_CNT 1
-#define SNMP_GGE 2
-#define SNMP_TIT 3
-#define SNMP_OPQ 4
-#define SNMP_C64 6
-
-/* SNMP errors */
-#define SERR_NSO 0
-#define SERR_NSI 1
-#define SERR_EOM 2
-
-static inline void mangle_address(unsigned char *begin,
- unsigned char *addr,
- const struct oct1_map *map,
- __sum16 *check);
-struct snmp_cnv
-{
- unsigned int class;
- unsigned int tag;
- int syntax;
-};
-
-static struct snmp_cnv snmp_conv [] =
-{
- {ASN1_UNI, ASN1_NUL, SNMP_NULL},
- {ASN1_UNI, ASN1_INT, SNMP_INTEGER},
- {ASN1_UNI, ASN1_OTS, SNMP_OCTETSTR},
- {ASN1_UNI, ASN1_OTS, SNMP_DISPLAYSTR},
- {ASN1_UNI, ASN1_OJI, SNMP_OBJECTID},
- {ASN1_APL, SNMP_IPA, SNMP_IPADDR},
- {ASN1_APL, SNMP_CNT, SNMP_COUNTER}, /* Counter32 */
- {ASN1_APL, SNMP_GGE, SNMP_GAUGE}, /* Gauge32 == Unsigned32 */
- {ASN1_APL, SNMP_TIT, SNMP_TIMETICKS},
- {ASN1_APL, SNMP_OPQ, SNMP_OPAQUE},
-
- /* SNMPv2 data types and errors */
- {ASN1_UNI, ASN1_BTS, SNMP_BITSTR},
- {ASN1_APL, SNMP_C64, SNMP_COUNTER64},
- {ASN1_CTX, SERR_NSO, SNMP_NOSUCHOBJECT},
- {ASN1_CTX, SERR_NSI, SNMP_NOSUCHINSTANCE},
- {ASN1_CTX, SERR_EOM, SNMP_ENDOFMIBVIEW},
- {0, 0, -1}
-};
-
-static unsigned char snmp_tag_cls2syntax(unsigned int tag,
- unsigned int cls,
- unsigned short *syntax)
-{
- struct snmp_cnv *cnv;
-
- cnv = snmp_conv;
-
- while (cnv->syntax != -1) {
- if (cnv->tag == tag && cnv->class == cls) {
- *syntax = cnv->syntax;
- return 1;
- }
- cnv++;
- }
- return 0;
-}
-
-static unsigned char snmp_object_decode(struct asn1_ctx *ctx,
- struct snmp_object **obj)
-{
- unsigned int cls, con, tag, len, idlen;
- unsigned short type;
- unsigned char *eoc, *end, *p;
- unsigned long *lp, *id;
- unsigned long ul;
- long l;
-
- *obj = NULL;
- id = NULL;
-
- if (!asn1_header_decode(ctx, &eoc, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_CON || tag != ASN1_SEQ)
- return 0;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_OJI)
- return 0;
-
- if (!asn1_oid_decode(ctx, end, &id, &idlen))
- return 0;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag)) {
- kfree(id);
- return 0;
- }
-
- if (con != ASN1_PRI) {
- kfree(id);
- return 0;
- }
-
- type = 0;
- if (!snmp_tag_cls2syntax(tag, cls, &type)) {
- kfree(id);
- return 0;
- }
-
- l = 0;
- switch (type) {
- case SNMP_INTEGER:
- len = sizeof(long);
- if (!asn1_long_decode(ctx, end, &l)) {
- kfree(id);
- return 0;
- }
- *obj = kmalloc(sizeof(struct snmp_object) + len,
- GFP_ATOMIC);
- if (*obj == NULL) {
- kfree(id);
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
- (*obj)->syntax.l[0] = l;
- break;
- case SNMP_OCTETSTR:
- case SNMP_OPAQUE:
- if (!asn1_octets_decode(ctx, end, &p, &len)) {
- kfree(id);
- return 0;
- }
- *obj = kmalloc(sizeof(struct snmp_object) + len,
- GFP_ATOMIC);
- if (*obj == NULL) {
- kfree(id);
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
- memcpy((*obj)->syntax.c, p, len);
- kfree(p);
- break;
- case SNMP_NULL:
- case SNMP_NOSUCHOBJECT:
- case SNMP_NOSUCHINSTANCE:
- case SNMP_ENDOFMIBVIEW:
- len = 0;
- *obj = kmalloc(sizeof(struct snmp_object), GFP_ATOMIC);
- if (*obj == NULL) {
- kfree(id);
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
- if (!asn1_null_decode(ctx, end)) {
- kfree(id);
- kfree(*obj);
- *obj = NULL;
- return 0;
- }
- break;
- case SNMP_OBJECTID:
- if (!asn1_oid_decode(ctx, end, (unsigned long **)&lp, &len)) {
- kfree(id);
- return 0;
- }
- len *= sizeof(unsigned long);
- *obj = kmalloc(sizeof(struct snmp_object) + len, GFP_ATOMIC);
- if (*obj == NULL) {
- kfree(lp);
- kfree(id);
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
- memcpy((*obj)->syntax.ul, lp, len);
- kfree(lp);
- break;
- case SNMP_IPADDR:
- if (!asn1_octets_decode(ctx, end, &p, &len)) {
- kfree(id);
- return 0;
- }
- if (len != 4) {
- kfree(p);
- kfree(id);
- return 0;
- }
- *obj = kmalloc(sizeof(struct snmp_object) + len, GFP_ATOMIC);
- if (*obj == NULL) {
- kfree(p);
- kfree(id);
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
- memcpy((*obj)->syntax.uc, p, len);
- kfree(p);
- break;
- case SNMP_COUNTER:
- case SNMP_GAUGE:
- case SNMP_TIMETICKS:
- len = sizeof(unsigned long);
- if (!asn1_ulong_decode(ctx, end, &ul)) {
- kfree(id);
- return 0;
- }
- *obj = kmalloc(sizeof(struct snmp_object) + len, GFP_ATOMIC);
- if (*obj == NULL) {
- kfree(id);
- if (net_ratelimit())
- printk("OOM in bsalg (%d)\n", __LINE__);
- return 0;
- }
- (*obj)->syntax.ul[0] = ul;
- break;
- default:
- kfree(id);
- return 0;
- }
-
- (*obj)->syntax_len = len;
- (*obj)->type = type;
- (*obj)->id = id;
- (*obj)->id_len = idlen;
-
- if (!asn1_eoc_decode(ctx, eoc)) {
- kfree(id);
- kfree(*obj);
- *obj = NULL;
- return 0;
- }
- return 1;
-}
-
-static unsigned char snmp_request_decode(struct asn1_ctx *ctx,
- struct snmp_request *request)
-{
- unsigned int cls, con, tag;
- unsigned char *end;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_INT)
- return 0;
-
- if (!asn1_ulong_decode(ctx, end, &request->id))
- return 0;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_INT)
- return 0;
-
- if (!asn1_uint_decode(ctx, end, &request->error_status))
- return 0;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_INT)
- return 0;
-
- if (!asn1_uint_decode(ctx, end, &request->error_index))
- return 0;
-
- return 1;
-}
-
-/*
- * Fast checksum update for possibly oddly-aligned UDP byte, from the
- * code example in the draft.
- */
-static void fast_csum(__sum16 *csum,
- const unsigned char *optr,
- const unsigned char *nptr,
- int offset)
-{
- unsigned char s[4];
-
- if (offset & 1) {
- s[0] = s[2] = 0;
- s[1] = ~*optr;
- s[3] = *nptr;
- } else {
- s[1] = s[3] = 0;
- s[0] = ~*optr;
- s[2] = *nptr;
- }
-
- *csum = csum_fold(csum_partial(s, 4, ~csum_unfold(*csum)));
-}
-
-/*
- * Mangle IP address.
- * - begin points to the start of the snmp messgae
- * - addr points to the start of the address
- */
-static inline void mangle_address(unsigned char *begin,
- unsigned char *addr,
- const struct oct1_map *map,
- __sum16 *check)
-{
- if (map->from == NOCT1(addr)) {
- u_int32_t old;
-
- if (debug)
- memcpy(&old, (unsigned char *)addr, sizeof(old));
-
- *addr = map->to;
-
- /* Update UDP checksum if being used */
- if (*check) {
- fast_csum(check,
- &map->from, &map->to, addr - begin);
- }
-
- if (debug)
- printk(KERN_DEBUG "bsalg: mapped %u.%u.%u.%u to "
- "%u.%u.%u.%u\n", NIPQUAD(old), NIPQUAD(*addr));
- }
-}
-
-static unsigned char snmp_trap_decode(struct asn1_ctx *ctx,
- struct snmp_v1_trap *trap,
- const struct oct1_map *map,
- __sum16 *check)
-{
- unsigned int cls, con, tag, len;
- unsigned char *end;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_OJI)
- return 0;
-
- if (!asn1_oid_decode(ctx, end, &trap->id, &trap->id_len))
- return 0;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- goto err_id_free;
-
- if (!((cls == ASN1_APL && con == ASN1_PRI && tag == SNMP_IPA) ||
- (cls == ASN1_UNI && con == ASN1_PRI && tag == ASN1_OTS)))
- goto err_id_free;
-
- if (!asn1_octets_decode(ctx, end, (unsigned char **)&trap->ip_address, &len))
- goto err_id_free;
-
- /* IPv4 only */
- if (len != 4)
- goto err_addr_free;
-
- mangle_address(ctx->begin, ctx->pointer - 4, map, check);
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- goto err_addr_free;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_INT)
- goto err_addr_free;
-
- if (!asn1_uint_decode(ctx, end, &trap->general))
- goto err_addr_free;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- goto err_addr_free;
-
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_INT)
- goto err_addr_free;
-
- if (!asn1_uint_decode(ctx, end, &trap->specific))
- goto err_addr_free;
-
- if (!asn1_header_decode(ctx, &end, &cls, &con, &tag))
- goto err_addr_free;
-
- if (!((cls == ASN1_APL && con == ASN1_PRI && tag == SNMP_TIT) ||
- (cls == ASN1_UNI && con == ASN1_PRI && tag == ASN1_INT)))
- goto err_addr_free;
-
- if (!asn1_ulong_decode(ctx, end, &trap->time))
- goto err_addr_free;
-
- return 1;
-
-err_addr_free:
- kfree((unsigned long *)trap->ip_address);
-
-err_id_free:
- kfree(trap->id);
-
- return 0;
-}
-
-/*****************************************************************************
- *
- * Misc. routines
- *
- *****************************************************************************/
-
-static void hex_dump(unsigned char *buf, size_t len)
-{
- size_t i;
-
- for (i = 0; i < len; i++) {
- if (i && !(i % 16))
- printk("\n");
- printk("%02x ", *(buf + i));
- }
- printk("\n");
-}
-
-/*
- * Parse and mangle SNMP message according to mapping.
- * (And this is the fucking 'basic' method).
- */
-static int snmp_parse_mangle(unsigned char *msg,
- u_int16_t len,
- const struct oct1_map *map,
- __sum16 *check)
-{
- unsigned char *eoc, *end;
- unsigned int cls, con, tag, vers, pdutype;
- struct asn1_ctx ctx;
- struct asn1_octstr comm;
- struct snmp_object **obj;
-
- if (debug > 1)
- hex_dump(msg, len);
-
- asn1_open(&ctx, msg, len);
-
- /*
- * Start of SNMP message.
- */
- if (!asn1_header_decode(&ctx, &eoc, &cls, &con, &tag))
- return 0;
- if (cls != ASN1_UNI || con != ASN1_CON || tag != ASN1_SEQ)
- return 0;
-
- /*
- * Version 1 or 2 handled.
- */
- if (!asn1_header_decode(&ctx, &end, &cls, &con, &tag))
- return 0;
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_INT)
- return 0;
- if (!asn1_uint_decode (&ctx, end, &vers))
- return 0;
- if (debug > 1)
- printk(KERN_DEBUG "bsalg: snmp version: %u\n", vers + 1);
- if (vers > 1)
- return 1;
-
- /*
- * Community.
- */
- if (!asn1_header_decode (&ctx, &end, &cls, &con, &tag))
- return 0;
- if (cls != ASN1_UNI || con != ASN1_PRI || tag != ASN1_OTS)
- return 0;
- if (!asn1_octets_decode(&ctx, end, &comm.data, &comm.len))
- return 0;
- if (debug > 1) {
- unsigned int i;
-
- printk(KERN_DEBUG "bsalg: community: ");
- for (i = 0; i < comm.len; i++)
- printk("%c", comm.data[i]);
- printk("\n");
- }
- kfree(comm.data);
-
- /*
- * PDU type
- */
- if (!asn1_header_decode(&ctx, &eoc, &cls, &con, &pdutype))
- return 0;
- if (cls != ASN1_CTX || con != ASN1_CON)
- return 0;
- if (debug > 1) {
- unsigned char *pdus[] = {
- [SNMP_PDU_GET] = "get",
- [SNMP_PDU_NEXT] = "get-next",
- [SNMP_PDU_RESPONSE] = "response",
- [SNMP_PDU_SET] = "set",
- [SNMP_PDU_TRAP1] = "trapv1",
- [SNMP_PDU_BULK] = "bulk",
- [SNMP_PDU_INFORM] = "inform",
- [SNMP_PDU_TRAP2] = "trapv2"
- };
-
- if (pdutype > SNMP_PDU_TRAP2)
- printk(KERN_DEBUG "bsalg: bad pdu type %u\n", pdutype);
- else
- printk(KERN_DEBUG "bsalg: pdu: %s\n", pdus[pdutype]);
- }
- if (pdutype != SNMP_PDU_RESPONSE &&
- pdutype != SNMP_PDU_TRAP1 && pdutype != SNMP_PDU_TRAP2)
- return 1;
-
- /*
- * Request header or v1 trap
- */
- if (pdutype == SNMP_PDU_TRAP1) {
- struct snmp_v1_trap trap;
- unsigned char ret = snmp_trap_decode(&ctx, &trap, map, check);
-
- if (ret) {
- kfree(trap.id);
- kfree((unsigned long *)trap.ip_address);
- } else
- return ret;
-
- } else {
- struct snmp_request req;
-
- if (!snmp_request_decode(&ctx, &req))
- return 0;
-
- if (debug > 1)
- printk(KERN_DEBUG "bsalg: request: id=0x%lx error_status=%u "
- "error_index=%u\n", req.id, req.error_status,
- req.error_index);
- }
-
- /*
- * Loop through objects, look for IP addresses to mangle.
- */
- if (!asn1_header_decode(&ctx, &eoc, &cls, &con, &tag))
- return 0;
-
- if (cls != ASN1_UNI || con != ASN1_CON || tag != ASN1_SEQ)
- return 0;
-
- obj = kmalloc(sizeof(struct snmp_object), GFP_ATOMIC);
- if (obj == NULL) {
- if (net_ratelimit())
- printk(KERN_WARNING "OOM in bsalg(%d)\n", __LINE__);
- return 0;
- }
-
- while (!asn1_eoc_decode(&ctx, eoc)) {
- unsigned int i;
-
- if (!snmp_object_decode(&ctx, obj)) {
- if (*obj) {
- kfree((*obj)->id);
- kfree(*obj);
- }
- kfree(obj);
- return 0;
- }
-
- if (debug > 1) {
- printk(KERN_DEBUG "bsalg: object: ");
- for (i = 0; i < (*obj)->id_len; i++) {
- if (i > 0)
- printk(".");
- printk("%lu", (*obj)->id[i]);
- }
- printk(": type=%u\n", (*obj)->type);
-
- }
-
- if ((*obj)->type == SNMP_IPADDR)
- mangle_address(ctx.begin, ctx.pointer - 4 , map, check);
-
- kfree((*obj)->id);
- kfree(*obj);
- }
- kfree(obj);
-
- if (!asn1_eoc_decode(&ctx, eoc))
- return 0;
-
- return 1;
-}
-
-/*****************************************************************************
- *
- * NAT routines.
- *
- *****************************************************************************/
-
-/*
- * SNMP translation routine.
- */
-static int snmp_translate(struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo,
- struct sk_buff **pskb)
-{
- struct iphdr *iph = (*pskb)->nh.iph;
- struct udphdr *udph = (struct udphdr *)((__be32 *)iph + iph->ihl);
- u_int16_t udplen = ntohs(udph->len);
- u_int16_t paylen = udplen - sizeof(struct udphdr);
- int dir = CTINFO2DIR(ctinfo);
- struct oct1_map map;
-
- /*
- * Determine mappping for application layer addresses based
- * on NAT manipulations for the packet.
- */
- if (dir == IP_CT_DIR_ORIGINAL) {
- /* SNAT traps */
- map.from = NOCT1(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip);
- map.to = NOCT1(&ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip);
- } else {
- /* DNAT replies */
- map.from = NOCT1(&ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip);
- map.to = NOCT1(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip);
- }
-
- if (map.from == map.to)
- return NF_ACCEPT;
-
- if (!snmp_parse_mangle((unsigned char *)udph + sizeof(struct udphdr),
- paylen, &map, &udph->check)) {
- if (net_ratelimit())
- printk(KERN_WARNING "bsalg: parser failed\n");
- return NF_DROP;
- }
- return NF_ACCEPT;
-}
-
-/* We don't actually set up expectations, just adjust internal IP
- * addresses if this is being NATted */
-static int help(struct sk_buff **pskb,
- struct ip_conntrack *ct,
- enum ip_conntrack_info ctinfo)
-{
- int dir = CTINFO2DIR(ctinfo);
- unsigned int ret;
- struct iphdr *iph = (*pskb)->nh.iph;
- struct udphdr *udph = (struct udphdr *)((u_int32_t *)iph + iph->ihl);
-
- /* SNMP replies and originating SNMP traps get mangled */
- if (udph->source == htons(SNMP_PORT) && dir != IP_CT_DIR_REPLY)
- return NF_ACCEPT;
- if (udph->dest == htons(SNMP_TRAP_PORT) && dir != IP_CT_DIR_ORIGINAL)
- return NF_ACCEPT;
-
- /* No NAT? */
- if (!(ct->status & IPS_NAT_MASK))
- return NF_ACCEPT;
-
- /*
- * Make sure the packet length is ok. So far, we were only guaranteed
- * to have a valid length IP header plus 8 bytes, which means we have
- * enough room for a UDP header. Just verify the UDP length field so we
- * can mess around with the payload.
- */
- if (ntohs(udph->len) != (*pskb)->len - (iph->ihl << 2)) {
- if (net_ratelimit())
- printk(KERN_WARNING "SNMP: dropping malformed packet "
- "src=%u.%u.%u.%u dst=%u.%u.%u.%u\n",
- NIPQUAD(iph->saddr), NIPQUAD(iph->daddr));
- return NF_DROP;
- }
-
- if (!skb_make_writable(pskb, (*pskb)->len))
- return NF_DROP;
-
- spin_lock_bh(&snmp_lock);
- ret = snmp_translate(ct, ctinfo, pskb);
- spin_unlock_bh(&snmp_lock);
- return ret;
-}
-
-static struct ip_conntrack_helper snmp_helper = {
- .max_expected = 0,
- .timeout = 180,
- .me = THIS_MODULE,
- .help = help,
- .name = "snmp",
-
- .tuple = {.src = {.u = {.udp = {.port = __constant_htons(SNMP_PORT)}}},
- .dst = {.protonum = IPPROTO_UDP},
- },
- .mask = {.src = {.u = {0xFFFF}},
- .dst = {.protonum = 0xFF},
- },
-};
-
-static struct ip_conntrack_helper snmp_trap_helper = {
- .max_expected = 0,
- .timeout = 180,
- .me = THIS_MODULE,
- .help = help,
- .name = "snmp_trap",
-
- .tuple = {.src = {.u = {.udp = {.port = __constant_htons(SNMP_TRAP_PORT)}}},
- .dst = {.protonum = IPPROTO_UDP},
- },
- .mask = {.src = {.u = {0xFFFF}},
- .dst = {.protonum = 0xFF},
- },
-};
-
-/*****************************************************************************
- *
- * Module stuff.
- *
- *****************************************************************************/
-
-static int __init ip_nat_snmp_basic_init(void)
-{
- int ret = 0;
-
- ret = ip_conntrack_helper_register(&snmp_helper);
- if (ret < 0)
- return ret;
- ret = ip_conntrack_helper_register(&snmp_trap_helper);
- if (ret < 0) {
- ip_conntrack_helper_unregister(&snmp_helper);
- return ret;
- }
- return ret;
-}
-
-static void __exit ip_nat_snmp_basic_fini(void)
-{
- ip_conntrack_helper_unregister(&snmp_helper);
- ip_conntrack_helper_unregister(&snmp_trap_helper);
-}
-
-module_init(ip_nat_snmp_basic_init);
-module_exit(ip_nat_snmp_basic_fini);
-
-module_param(debug, int, 0600);
+++ /dev/null
-/* This file contains all the functions required for the standalone
- ip_nat module.
-
- These are not required by the compatibility layer.
-*/
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * 23 Apr 2001: Harald Welte <laforge@gnumonks.org>
- * - new API and handling of conntrack/nat helpers
- * - now capable of multiple expectations for one master
- * */
-
-#include <linux/types.h>
-#include <linux/icmp.h>
-#include <linux/ip.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/proc_fs.h>
-#include <net/ip.h>
-#include <net/checksum.h>
-#include <linux/spinlock.h>
-
-#include <linux/netfilter_ipv4/ip_nat.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-#include <linux/netfilter_ipv4/ip_nat_core.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-#ifdef CONFIG_XFRM
-static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
-{
- struct ip_conntrack *ct;
- struct ip_conntrack_tuple *t;
- enum ip_conntrack_info ctinfo;
- enum ip_conntrack_dir dir;
- unsigned long statusbit;
-
- ct = ip_conntrack_get(skb, &ctinfo);
- if (ct == NULL)
- return;
- dir = CTINFO2DIR(ctinfo);
- t = &ct->tuplehash[dir].tuple;
-
- if (dir == IP_CT_DIR_ORIGINAL)
- statusbit = IPS_DST_NAT;
- else
- statusbit = IPS_SRC_NAT;
-
- if (ct->status & statusbit) {
- fl->fl4_dst = t->dst.ip;
- if (t->dst.protonum == IPPROTO_TCP ||
- t->dst.protonum == IPPROTO_UDP)
- fl->fl_ip_dport = t->dst.u.tcp.port;
- }
-
- statusbit ^= IPS_NAT_MASK;
-
- if (ct->status & statusbit) {
- fl->fl4_src = t->src.ip;
- if (t->dst.protonum == IPPROTO_TCP ||
- t->dst.protonum == IPPROTO_UDP)
- fl->fl_ip_sport = t->src.u.tcp.port;
- }
-}
-#endif
-
-static unsigned int
-ip_nat_fn(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- struct ip_nat_info *info;
- /* maniptype == SRC for postrouting. */
- enum ip_nat_manip_type maniptype = HOOK2MANIP(hooknum);
-
- /* We never see fragments: conntrack defrags on pre-routing
- and local-out, and ip_nat_out protects post-routing. */
- IP_NF_ASSERT(!((*pskb)->nh.iph->frag_off
- & htons(IP_MF|IP_OFFSET)));
-
- ct = ip_conntrack_get(*pskb, &ctinfo);
- /* Can't track? It's not due to stress, or conntrack would
- have dropped it. Hence it's the user's responsibilty to
- packet filter it out, or implement conntrack/NAT for that
- protocol. 8) --RR */
- if (!ct) {
- /* Exception: ICMP redirect to new connection (not in
- hash table yet). We must not let this through, in
- case we're doing NAT to the same network. */
- if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) {
- struct icmphdr _hdr, *hp;
-
- hp = skb_header_pointer(*pskb,
- (*pskb)->nh.iph->ihl*4,
- sizeof(_hdr), &_hdr);
- if (hp != NULL &&
- hp->type == ICMP_REDIRECT)
- return NF_DROP;
- }
- return NF_ACCEPT;
- }
-
- /* Don't try to NAT if this packet is not conntracked */
- if (ct == &ip_conntrack_untracked)
- return NF_ACCEPT;
-
- switch (ctinfo) {
- case IP_CT_RELATED:
- case IP_CT_RELATED+IP_CT_IS_REPLY:
- if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) {
- if (!ip_nat_icmp_reply_translation(ct, ctinfo,
- hooknum, pskb))
- return NF_DROP;
- else
- return NF_ACCEPT;
- }
- /* Fall thru... (Only ICMPs can be IP_CT_IS_REPLY) */
- case IP_CT_NEW:
- info = &ct->nat.info;
-
- /* Seen it before? This can happen for loopback, retrans,
- or local packets.. */
- if (!ip_nat_initialized(ct, maniptype)) {
- unsigned int ret;
-
- if (unlikely(is_confirmed(ct)))
- /* NAT module was loaded late */
- ret = alloc_null_binding_confirmed(ct, info,
- hooknum);
- else if (hooknum == NF_IP_LOCAL_IN)
- /* LOCAL_IN hook doesn't have a chain! */
- ret = alloc_null_binding(ct, info, hooknum);
- else
- ret = ip_nat_rule_find(pskb, hooknum,
- in, out, ct,
- info);
-
- if (ret != NF_ACCEPT) {
- return ret;
- }
- } else
- DEBUGP("Already setup manip %s for ct %p\n",
- maniptype == IP_NAT_MANIP_SRC ? "SRC" : "DST",
- ct);
- break;
-
- default:
- /* ESTABLISHED */
- IP_NF_ASSERT(ctinfo == IP_CT_ESTABLISHED
- || ctinfo == (IP_CT_ESTABLISHED+IP_CT_IS_REPLY));
- info = &ct->nat.info;
- }
-
- IP_NF_ASSERT(info);
- return ip_nat_packet(ct, ctinfo, hooknum, pskb);
-}
-
-static unsigned int
-ip_nat_in(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- unsigned int ret;
- __be32 daddr = (*pskb)->nh.iph->daddr;
-
- ret = ip_nat_fn(hooknum, pskb, in, out, okfn);
- if (ret != NF_DROP && ret != NF_STOLEN
- && daddr != (*pskb)->nh.iph->daddr) {
- dst_release((*pskb)->dst);
- (*pskb)->dst = NULL;
- }
- return ret;
-}
-
-static unsigned int
-ip_nat_out(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
-#ifdef CONFIG_XFRM
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
-#endif
- unsigned int ret;
-
- /* root is playing with raw sockets. */
- if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr))
- return NF_ACCEPT;
-
- ret = ip_nat_fn(hooknum, pskb, in, out, okfn);
-#ifdef CONFIG_XFRM
- if (ret != NF_DROP && ret != NF_STOLEN
- && (ct = ip_conntrack_get(*pskb, &ctinfo)) != NULL) {
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-
- if (ct->tuplehash[dir].tuple.src.ip !=
- ct->tuplehash[!dir].tuple.dst.ip
- || ct->tuplehash[dir].tuple.src.u.all !=
- ct->tuplehash[!dir].tuple.dst.u.all
- )
- return ip_xfrm_me_harder(pskb) == 0 ? ret : NF_DROP;
- }
-#endif
- return ret;
-}
-
-static unsigned int
-ip_nat_local_fn(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- unsigned int ret;
-
- /* root is playing with raw sockets. */
- if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr))
- return NF_ACCEPT;
-
- ret = ip_nat_fn(hooknum, pskb, in, out, okfn);
- if (ret != NF_DROP && ret != NF_STOLEN
- && (ct = ip_conntrack_get(*pskb, &ctinfo)) != NULL) {
- enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-
- if (ct->tuplehash[dir].tuple.dst.ip !=
- ct->tuplehash[!dir].tuple.src.ip) {
- if (ip_route_me_harder(pskb, RTN_UNSPEC))
- ret = NF_DROP;
- }
-#ifdef CONFIG_XFRM
- else if (ct->tuplehash[dir].tuple.dst.u.all !=
- ct->tuplehash[!dir].tuple.src.u.all)
- if (ip_xfrm_me_harder(pskb))
- ret = NF_DROP;
-#endif
-
- }
- return ret;
-}
-
-static unsigned int
-ip_nat_adjust(unsigned int hooknum,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
-{
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
-
- ct = ip_conntrack_get(*pskb, &ctinfo);
- if (ct && test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
- DEBUGP("ip_nat_standalone: adjusting sequence number\n");
- if (!ip_nat_seq_adjust(pskb, ct, ctinfo))
- return NF_DROP;
- }
- return NF_ACCEPT;
-}
-
-/* We must be after connection tracking and before packet filtering. */
-
-static struct nf_hook_ops ip_nat_ops[] = {
- /* Before packet filtering, change destination */
- {
- .hook = ip_nat_in,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_PRE_ROUTING,
- .priority = NF_IP_PRI_NAT_DST,
- },
- /* After packet filtering, change source */
- {
- .hook = ip_nat_out,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_POST_ROUTING,
- .priority = NF_IP_PRI_NAT_SRC,
- },
- /* After conntrack, adjust sequence number */
- {
- .hook = ip_nat_adjust,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_POST_ROUTING,
- .priority = NF_IP_PRI_NAT_SEQ_ADJUST,
- },
- /* Before packet filtering, change destination */
- {
- .hook = ip_nat_local_fn,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_OUT,
- .priority = NF_IP_PRI_NAT_DST,
- },
- /* After packet filtering, change source */
- {
- .hook = ip_nat_fn,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_IN,
- .priority = NF_IP_PRI_NAT_SRC,
- },
- /* After conntrack, adjust sequence number */
- {
- .hook = ip_nat_adjust,
- .owner = THIS_MODULE,
- .pf = PF_INET,
- .hooknum = NF_IP_LOCAL_IN,
- .priority = NF_IP_PRI_NAT_SEQ_ADJUST,
- },
-};
-
-static int __init ip_nat_standalone_init(void)
-{
- int ret = 0;
-
- need_conntrack();
-
-#ifdef CONFIG_XFRM
- BUG_ON(ip_nat_decode_session != NULL);
- ip_nat_decode_session = nat_decode_session;
-#endif
- ret = ip_nat_rule_init();
- if (ret < 0) {
- printk("ip_nat_init: can't setup rules.\n");
- goto cleanup_decode_session;
- }
- ret = nf_register_hooks(ip_nat_ops, ARRAY_SIZE(ip_nat_ops));
- if (ret < 0) {
- printk("ip_nat_init: can't register hooks.\n");
- goto cleanup_rule_init;
- }
- return ret;
-
- cleanup_rule_init:
- ip_nat_rule_cleanup();
- cleanup_decode_session:
-#ifdef CONFIG_XFRM
- ip_nat_decode_session = NULL;
- synchronize_net();
-#endif
- return ret;
-}
-
-static void __exit ip_nat_standalone_fini(void)
-{
- nf_unregister_hooks(ip_nat_ops, ARRAY_SIZE(ip_nat_ops));
- ip_nat_rule_cleanup();
-#ifdef CONFIG_XFRM
- ip_nat_decode_session = NULL;
- synchronize_net();
-#endif
-}
-
-module_init(ip_nat_standalone_init);
-module_exit(ip_nat_standalone_fini);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* (C) 2001-2002 Magnus Boden <mb@ozaba.mine.nu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Version: 0.0.7
- *
- * Thu 21 Mar 2002 Harald Welte <laforge@gnumonks.org>
- * - Port to newnat API
- *
- * This module currently supports DNAT:
- * iptables -t nat -A PREROUTING -d x.x.x.x -j DNAT --to-dest x.x.x.y
- *
- * and SNAT:
- * iptables -t nat -A POSTROUTING { -j MASQUERADE , -j SNAT --to-source x.x.x.x }
- *
- * It has not been tested with
- * -j SNAT --to-source x.x.x.x-x.x.x.y since I only have one external ip
- * If you do test this please let me know if it works or not.
- *
- */
-
-#include <linux/module.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/ip.h>
-#include <linux/udp.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tftp.h>
-#include <linux/netfilter_ipv4/ip_nat_helper.h>
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#include <linux/moduleparam.h>
-
-MODULE_AUTHOR("Magnus Boden <mb@ozaba.mine.nu>");
-MODULE_DESCRIPTION("tftp NAT helper");
-MODULE_LICENSE("GPL");
-
-static unsigned int help(struct sk_buff **pskb,
- enum ip_conntrack_info ctinfo,
- struct ip_conntrack_expect *exp)
-{
- struct ip_conntrack *ct = exp->master;
-
- exp->saved_proto.udp.port
- = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.udp.port;
- exp->dir = IP_CT_DIR_REPLY;
- exp->expectfn = ip_nat_follow_master;
- if (ip_conntrack_expect_related(exp) != 0)
- return NF_DROP;
- return NF_ACCEPT;
-}
-
-static void __exit ip_nat_tftp_fini(void)
-{
- rcu_assign_pointer(ip_nat_tftp_hook, NULL);
- synchronize_rcu();
-}
-
-static int __init ip_nat_tftp_init(void)
-{
- BUG_ON(rcu_dereference(ip_nat_tftp_hook));
- rcu_assign_pointer(ip_nat_tftp_hook, help);
- return 0;
-}
-
-module_init(ip_nat_tftp_init);
-module_exit(ip_nat_tftp_fini);
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 2000-03-27: Simplified code (thanks to Andi Kleen for clues).
- * 2000-05-20: Fixed notifier problems (following Miguel Freitas' report).
- * 2000-06-19: Fixed so nfmark is copied to metadata (reported by Sebastian
- * Zander).
- * 2000-08-01: Added Nick Williams' MAC support.
- * 2002-06-25: Code cleanup.
- * 2005-01-10: Added /proc counter for dropped packets; fixed so
- * packets aren't delivered to user space if they're going
- * to be dropped.
- * 2005-05-26: local_bh_{disable,enable} around nf_reinject (Harald Welte)
- *
*/
#include <linux/module.h>
#include <linux/skbuff.h>
static struct sk_buff *
ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp)
{
- unsigned char *old_tail;
+ sk_buff_data_t old_tail;
size_t size = 0;
size_t data_len = 0;
struct sk_buff *skb;
struct ipq_packet_msg *pmsg;
struct nlmsghdr *nlh;
+ struct timeval tv;
read_lock_bh(&queue_lock);
if (!skb)
goto nlmsg_failure;
- old_tail= skb->tail;
+ old_tail = skb->tail;
nlh = NLMSG_PUT(skb, 0, 0, IPQM_PACKET, size - sizeof(*nlh));
pmsg = NLMSG_DATA(nlh);
memset(pmsg, 0, sizeof(*pmsg));
pmsg->packet_id = (unsigned long )entry;
pmsg->data_len = data_len;
- pmsg->timestamp_sec = entry->skb->tstamp.off_sec;
- pmsg->timestamp_usec = entry->skb->tstamp.off_usec;
+ tv = ktime_to_timeval(entry->skb->tstamp);
+ pmsg->timestamp_sec = tv.tv_sec;
+ pmsg->timestamp_usec = tv.tv_usec;
pmsg->mark = entry->skb->mark;
pmsg->hook = entry->info->hook;
pmsg->hw_protocol = entry->skb->protocol;
}
if (!skb_make_writable(&e->skb, v->data_len))
return -ENOMEM;
- memcpy(e->skb->data, v->payload, v->data_len);
+ skb_copy_to_linear_data(e->skb, v->payload, v->data_len);
e->skb->ip_summed = CHECKSUM_NONE;
return 0;
if (skblen < sizeof(*nlh))
return;
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
nlmsglen = nlh->nlmsg_len;
if (nlmsglen < sizeof(*nlh) || skblen < nlmsglen)
return;
netlink_register_notifier(&ipq_nl_notifier);
ipqnl = netlink_kernel_create(NETLINK_FIREWALL, 0, ipq_rcv_sk,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (ipqnl == NULL) {
printk(KERN_ERR "ip_queue: failed to create netlink socket\n");
goto cleanup_netlink_notifier;
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 19 Jan 2002 Harald Welte <laforge@gnumonks.org>
- * - increase module usage count as soon as we have rules inside
- * a table
- * 08 Oct 2005 Harald Welte <lafore@netfilter.org>
- * - Generalize into "x_tables" layer and "{ip,ip6,arp}_tables"
*/
#include <linux/cache.h>
#include <linux/capability.h>
{
/* Stop iteration if it doesn't match */
if (!m->u.kernel.match->match(skb, in, out, m->u.kernel.match, m->data,
- offset, skb->nh.iph->ihl*4, hotdrop))
+ offset, ip_hdrlen(skb), hotdrop))
return 1;
else
return 0;
struct xt_table_info *private;
/* Initialization */
- ip = (*pskb)->nh.iph;
+ ip = ip_hdr(*pskb);
datalen = (*pskb)->len - ip->ihl * 4;
indev = in ? in->name : nulldevname;
outdev = out ? out->name : nulldevname;
= 0x57acc001;
#endif
/* Target might have changed stuff. */
- ip = (*pskb)->nh.iph;
+ ip = ip_hdr(*pskb);
datalen = (*pskb)->len - ip->ihl * 4;
if (verdict == IPT_CONTINUE)
#include <linux/if_arp.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-
-#include <net/checksum.h>
-
#include <linux/netfilter_arp.h>
-
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_ipv4/ip_tables.h>
#include <linux/netfilter_ipv4/ipt_CLUSTERIP.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/checksum.h>
#define CLUSTERIP_VERSION "0.8"
static inline u_int32_t
clusterip_hashfn(struct sk_buff *skb, struct clusterip_config *config)
{
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
unsigned long hashval;
u_int16_t sport, dport;
u_int16_t *ports;
const void *targinfo)
{
const struct ipt_clusterip_tgt_info *cipinfo = targinfo;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
- u_int32_t *mark, hash;
+ u_int32_t hash;
/* don't need to clusterip_config_get() here, since refcount
* is only decremented by destroy() - and ip_tables guarantees
* that the ->target() function isn't called after ->destroy() */
- mark = nf_ct_get_mark((*pskb), &ctinfo);
- if (mark == NULL) {
+ ct = nf_ct_get(*pskb, &ctinfo);
+ if (ct == NULL) {
printk(KERN_ERR "CLUSTERIP: no conntrack!\n");
/* FIXME: need to drop invalid ones, since replies
* to outgoing connections of other nodes will be
/* special case: ICMP error handling. conntrack distinguishes between
* error messages (RELATED) and information requests (see below) */
- if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP
+ if (ip_hdr(*pskb)->protocol == IPPROTO_ICMP
&& (ctinfo == IP_CT_RELATED
|| ctinfo == IP_CT_RELATED+IP_CT_IS_REPLY))
return XT_CONTINUE;
switch (ctinfo) {
case IP_CT_NEW:
- *mark = hash;
+ ct->mark = hash;
break;
case IP_CT_RELATED:
case IP_CT_RELATED+IP_CT_IS_REPLY:
#ifdef DEBUG_CLUSTERP
DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
#endif
- DEBUGP("hash=%u ct_hash=%u ", hash, *mark);
+ DEBUGP("hash=%u ct_hash=%u ", hash, ct->mark);
if (!clusterip_responsible(cipinfo->config, hash)) {
DEBUGP("not responsible\n");
return NF_DROP;
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
- struct arphdr *arp = (*pskb)->nh.arph;
+ struct arphdr *arp = arp_hdr(*pskb);
struct arp_payload *payload;
struct clusterip_config *c;
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * ipt_ECN.c,v 1.5 2002/08/18 19:36:51 laforge Exp
*/
#include <linux/in.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
+#include <net/ip.h>
#include <linux/tcp.h>
#include <net/checksum.h>
static inline int
set_ect_ip(struct sk_buff **pskb, const struct ipt_ECN_info *einfo)
{
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
if ((iph->tos & IPT_ECN_IP_MASK) != (einfo->ip_ect & IPT_ECN_IP_MASK)) {
__u8 oldtos;
if (!skb_make_writable(pskb, sizeof(struct iphdr)))
return 0;
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
oldtos = iph->tos;
iph->tos &= ~IPT_ECN_IP_MASK;
iph->tos |= (einfo->ip_ect & IPT_ECN_IP_MASK);
__be16 oldval;
/* Not enought header? */
- tcph = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl*4,
+ tcph = skb_header_pointer(*pskb, ip_hdrlen(*pskb),
sizeof(_tcph), &_tcph);
if (!tcph)
return 0;
tcph->cwr == einfo->proto.tcp.cwr)))
return 1;
- if (!skb_make_writable(pskb, (*pskb)->nh.iph->ihl*4+sizeof(*tcph)))
+ if (!skb_make_writable(pskb, ip_hdrlen(*pskb) + sizeof(*tcph)))
return 0;
- tcph = (void *)(*pskb)->nh.iph + (*pskb)->nh.iph->ihl*4;
+ tcph = (void *)ip_hdr(*pskb) + ip_hdrlen(*pskb);
oldval = ((__be16 *)tcph)[6];
if (einfo->operation & IPT_ECN_OP_SET_ECE)
return NF_DROP;
if (einfo->operation & (IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR)
- && (*pskb)->nh.iph->protocol == IPPROTO_TCP)
+ && ip_hdr(*pskb)->protocol == IPPROTO_TCP)
if (!set_ect_tcp(pskb, einfo))
return NF_DROP;
/* MAC logging for input chain only. */
printk("MAC=");
if (skb->dev && skb->dev->hard_header_len
- && skb->mac.raw != (void*)skb->nh.iph) {
+ && skb->mac_header != skb->network_header) {
int i;
- unsigned char *p = skb->mac.raw;
+ const unsigned char *p = skb_mac_header(skb);
for (i = 0; i < skb->dev->hard_header_len; i++,p++)
printk("%02x%c", *p,
i==skb->dev->hard_header_len - 1
ret = xt_register_target(&ipt_log_reg);
if (ret < 0)
return ret;
- if (nf_log_register(PF_INET, &ipt_log_logger) < 0) {
- printk(KERN_WARNING "ipt_LOG: not logging via system console "
- "since somebody else already registered for PF_INET\n");
- /* we cannot make module load fail here, since otherwise
- * iptables userspace would abort */
- }
-
- return 0;
+ ret = nf_log_register(PF_INET, &ipt_log_logger);
+ if (ret < 0 && ret != -EEXIST)
+ xt_unregister_target(&ipt_log_reg);
+ return ret;
}
static void __exit ipt_log_fini(void)
#include <net/ip.h>
#include <net/checksum.h>
#include <net/route.h>
-#include <linux/netfilter_ipv4.h>
-#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat_rule.h>
-#else
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#endif
+#include <linux/netfilter_ipv4.h>
#include <linux/netfilter/x_tables.h>
MODULE_LICENSE("GPL");
void *targinfo,
unsigned int hook_mask)
{
- const struct ip_nat_multi_range_compat *mr = targinfo;
+ const struct nf_nat_multi_range_compat *mr = targinfo;
if (mr->range[0].flags & IP_NAT_RANGE_MAP_IPS) {
DEBUGP("masquerade_check: bad MAP_IPS.\n");
const struct xt_target *target,
const void *targinfo)
{
-#ifdef CONFIG_NF_NAT_NEEDED
+ struct nf_conn *ct;
struct nf_conn_nat *nat;
-#endif
- struct ip_conntrack *ct;
enum ip_conntrack_info ctinfo;
- struct ip_nat_range newrange;
- const struct ip_nat_multi_range_compat *mr;
+ struct nf_nat_range newrange;
+ const struct nf_nat_multi_range_compat *mr;
struct rtable *rt;
__be32 newsrc;
- IP_NF_ASSERT(hooknum == NF_IP_POST_ROUTING);
+ NF_CT_ASSERT(hooknum == NF_IP_POST_ROUTING);
- ct = ip_conntrack_get(*pskb, &ctinfo);
-#ifdef CONFIG_NF_NAT_NEEDED
+ ct = nf_ct_get(*pskb, &ctinfo);
nat = nfct_nat(ct);
-#endif
- IP_NF_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED
+
+ NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED
|| ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY));
/* Source address is 0.0.0.0 - locally generated packet that is
* probably not supposed to be masqueraded.
*/
-#ifdef CONFIG_NF_NAT_NEEDED
if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip == 0)
-#else
- if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip == 0)
-#endif
return NF_ACCEPT;
mr = targinfo;
}
write_lock_bh(&masq_lock);
-#ifdef CONFIG_NF_NAT_NEEDED
nat->masq_index = out->ifindex;
-#else
- ct->nat.masq_index = out->ifindex;
-#endif
write_unlock_bh(&masq_lock);
/* Transfer from original range. */
- newrange = ((struct ip_nat_range)
+ newrange = ((struct nf_nat_range)
{ mr->range[0].flags | IP_NAT_RANGE_MAP_IPS,
newsrc, newsrc,
mr->range[0].min, mr->range[0].max });
/* Hand modified range to generic setup. */
- return ip_nat_setup_info(ct, &newrange, hooknum);
+ return nf_nat_setup_info(ct, &newrange, hooknum);
}
static inline int
-device_cmp(struct ip_conntrack *i, void *ifindex)
+device_cmp(struct nf_conn *i, void *ifindex)
{
- int ret;
-#ifdef CONFIG_NF_NAT_NEEDED
struct nf_conn_nat *nat = nfct_nat(i);
+ int ret;
if (!nat)
return 0;
-#endif
read_lock_bh(&masq_lock);
-#ifdef CONFIG_NF_NAT_NEEDED
ret = (nat->masq_index == (int)(long)ifindex);
-#else
- ret = (i->nat.masq_index == (int)(long)ifindex);
-#endif
read_unlock_bh(&masq_lock);
return ret;
/* Device was downed. Search entire table for
conntracks which were associated with that device,
and forget them. */
- IP_NF_ASSERT(dev->ifindex != 0);
+ NF_CT_ASSERT(dev->ifindex != 0);
- ip_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
+ nf_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
}
return NOTIFY_DONE;
/* IP address was deleted. Search entire table for
conntracks which were associated with that device,
and forget them. */
- IP_NF_ASSERT(dev->ifindex != 0);
+ NF_CT_ASSERT(dev->ifindex != 0);
- ip_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
+ nf_ct_iterate_cleanup(device_cmp, (void *)(long)dev->ifindex);
}
return NOTIFY_DONE;
.name = "MASQUERADE",
.family = AF_INET,
.target = masquerade_target,
- .targetsize = sizeof(struct ip_nat_multi_range_compat),
+ .targetsize = sizeof(struct nf_nat_multi_range_compat),
.table = "nat",
.hooks = 1 << NF_IP_POST_ROUTING,
.checkentry = masquerade_check,
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter/x_tables.h>
-#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat_rule.h>
-#else
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#endif
#define MODULENAME "NETMAP"
MODULE_LICENSE("GPL");
void *targinfo,
unsigned int hook_mask)
{
- const struct ip_nat_multi_range_compat *mr = targinfo;
+ const struct nf_nat_multi_range_compat *mr = targinfo;
if (!(mr->range[0].flags & IP_NAT_RANGE_MAP_IPS)) {
DEBUGP(MODULENAME":check: bad MAP_IPS.\n");
const struct xt_target *target,
const void *targinfo)
{
- struct ip_conntrack *ct;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
__be32 new_ip, netmask;
- const struct ip_nat_multi_range_compat *mr = targinfo;
- struct ip_nat_range newrange;
+ const struct nf_nat_multi_range_compat *mr = targinfo;
+ struct nf_nat_range newrange;
- IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING
+ NF_CT_ASSERT(hooknum == NF_IP_PRE_ROUTING
|| hooknum == NF_IP_POST_ROUTING
|| hooknum == NF_IP_LOCAL_OUT);
- ct = ip_conntrack_get(*pskb, &ctinfo);
+ ct = nf_ct_get(*pskb, &ctinfo);
netmask = ~(mr->range[0].min_ip ^ mr->range[0].max_ip);
if (hooknum == NF_IP_PRE_ROUTING || hooknum == NF_IP_LOCAL_OUT)
- new_ip = (*pskb)->nh.iph->daddr & ~netmask;
+ new_ip = ip_hdr(*pskb)->daddr & ~netmask;
else
- new_ip = (*pskb)->nh.iph->saddr & ~netmask;
+ new_ip = ip_hdr(*pskb)->saddr & ~netmask;
new_ip |= mr->range[0].min_ip & netmask;
- newrange = ((struct ip_nat_range)
+ newrange = ((struct nf_nat_range)
{ mr->range[0].flags | IP_NAT_RANGE_MAP_IPS,
new_ip, new_ip,
mr->range[0].min, mr->range[0].max });
/* Hand modified range to generic setup. */
- return ip_nat_setup_info(ct, &newrange, hooknum);
+ return nf_nat_setup_info(ct, &newrange, hooknum);
}
static struct xt_target target_module = {
.name = MODULENAME,
.family = AF_INET,
.target = target,
- .targetsize = sizeof(struct ip_nat_multi_range_compat),
+ .targetsize = sizeof(struct nf_nat_multi_range_compat),
.table = "nat",
.hooks = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_POST_ROUTING) |
(1 << NF_IP_LOCAL_OUT),
#include <net/checksum.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter/x_tables.h>
-#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat_rule.h>
-#else
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#endif
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
void *targinfo,
unsigned int hook_mask)
{
- const struct ip_nat_multi_range_compat *mr = targinfo;
+ const struct nf_nat_multi_range_compat *mr = targinfo;
if (mr->range[0].flags & IP_NAT_RANGE_MAP_IPS) {
DEBUGP("redirect_check: bad MAP_IPS.\n");
const struct xt_target *target,
const void *targinfo)
{
- struct ip_conntrack *ct;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
__be32 newdst;
- const struct ip_nat_multi_range_compat *mr = targinfo;
- struct ip_nat_range newrange;
+ const struct nf_nat_multi_range_compat *mr = targinfo;
+ struct nf_nat_range newrange;
- IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING
+ NF_CT_ASSERT(hooknum == NF_IP_PRE_ROUTING
|| hooknum == NF_IP_LOCAL_OUT);
- ct = ip_conntrack_get(*pskb, &ctinfo);
- IP_NF_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED));
+ ct = nf_ct_get(*pskb, &ctinfo);
+ NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED));
/* Local packets: make them go to loopback */
if (hooknum == NF_IP_LOCAL_OUT)
}
/* Transfer from original range. */
- newrange = ((struct ip_nat_range)
+ newrange = ((struct nf_nat_range)
{ mr->range[0].flags | IP_NAT_RANGE_MAP_IPS,
newdst, newdst,
mr->range[0].min, mr->range[0].max });
/* Hand modified range to generic setup. */
- return ip_nat_setup_info(ct, &newrange, hooknum);
+ return nf_nat_setup_info(ct, &newrange, hooknum);
}
static struct xt_target redirect_reg = {
.name = "REDIRECT",
.family = AF_INET,
.target = redirect_target,
- .targetsize = sizeof(struct ip_nat_multi_range_compat),
+ .targetsize = sizeof(struct nf_nat_multi_range_compat),
.table = "nat",
.hooks = (1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT),
.checkentry = redirect_check,
/*
* This is a module which is used for rejecting packets.
- * Added support for customized reject packets (Jozsef Kadlecsik).
- * Added support for ICMP type-3-code-13 (Maciej Soltysiak). [RFC 1812]
*/
/* (C) 1999-2001 Paul `Rusty' Russell
static void send_reset(struct sk_buff *oldskb, int hook)
{
struct sk_buff *nskb;
- struct iphdr *iph = oldskb->nh.iph;
+ struct iphdr *niph;
struct tcphdr _otcph, *oth, *tcph;
__be16 tmp_port;
__be32 tmp_addr;
unsigned int addr_type;
/* IP header checks: fragment. */
- if (oldskb->nh.iph->frag_off & htons(IP_OFFSET))
+ if (ip_hdr(oldskb)->frag_off & htons(IP_OFFSET))
return;
- oth = skb_header_pointer(oldskb, oldskb->nh.iph->ihl * 4,
+ oth = skb_header_pointer(oldskb, ip_hdrlen(oldskb),
sizeof(_otcph), &_otcph);
if (oth == NULL)
return;
return;
/* Check checksum */
- if (nf_ip_checksum(oldskb, hook, iph->ihl * 4, IPPROTO_TCP))
+ if (nf_ip_checksum(oldskb, hook, ip_hdrlen(oldskb), IPPROTO_TCP))
return;
/* We need a linear, writeable skb. We also need to expand
skb_shinfo(nskb)->gso_segs = 0;
skb_shinfo(nskb)->gso_type = 0;
- tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl);
+ tcph = (struct tcphdr *)(skb_network_header(nskb) + ip_hdrlen(nskb));
/* Swap source and dest */
- tmp_addr = nskb->nh.iph->saddr;
- nskb->nh.iph->saddr = nskb->nh.iph->daddr;
- nskb->nh.iph->daddr = tmp_addr;
+ niph = ip_hdr(nskb);
+ tmp_addr = niph->saddr;
+ niph->saddr = niph->daddr;
+ niph->daddr = tmp_addr;
tmp_port = tcph->source;
tcph->source = tcph->dest;
tcph->dest = tmp_port;
/* Truncate to length (no data) */
tcph->doff = sizeof(struct tcphdr)/4;
- skb_trim(nskb, nskb->nh.iph->ihl*4 + sizeof(struct tcphdr));
- nskb->nh.iph->tot_len = htons(nskb->len);
+ skb_trim(nskb, ip_hdrlen(nskb) + sizeof(struct tcphdr));
+ niph->tot_len = htons(nskb->len);
if (tcph->ack) {
needs_ack = 0;
tcph->ack_seq = 0;
} else {
needs_ack = 1;
- tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin
- + oldskb->len - oldskb->nh.iph->ihl*4
- - (oth->doff<<2));
+ tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn + oth->fin +
+ oldskb->len - ip_hdrlen(oldskb) -
+ (oth->doff << 2));
tcph->seq = 0;
}
/* Adjust TCP checksum */
tcph->check = 0;
tcph->check = tcp_v4_check(sizeof(struct tcphdr),
- nskb->nh.iph->saddr,
- nskb->nh.iph->daddr,
+ niph->saddr, niph->daddr,
csum_partial((char *)tcph,
sizeof(struct tcphdr), 0));
/* Set DF, id = 0 */
- nskb->nh.iph->frag_off = htons(IP_DF);
- nskb->nh.iph->id = 0;
+ niph->frag_off = htons(IP_DF);
+ niph->id = 0;
addr_type = RTN_UNSPEC;
if (hook != NF_IP_FORWARD
nskb->ip_summed = CHECKSUM_NONE;
/* Adjust IP TTL */
- nskb->nh.iph->ttl = dst_metric(nskb->dst, RTAX_HOPLIMIT);
+ niph->ttl = dst_metric(nskb->dst, RTAX_HOPLIMIT);
/* Adjust IP checksum */
- nskb->nh.iph->check = 0;
- nskb->nh.iph->check = ip_fast_csum((unsigned char *)nskb->nh.iph,
- nskb->nh.iph->ihl);
+ niph->check = 0;
+ niph->check = ip_fast_csum(skb_network_header(nskb), niph->ihl);
/* "Never happens" */
if (nskb->len > dst_mtu(nskb->dst))
/* Our naive response construction doesn't deal with IP
options, and probably shouldn't try. */
- if ((*pskb)->nh.iph->ihl<<2 != sizeof(struct iphdr))
+ if (ip_hdrlen(*pskb) != sizeof(struct iphdr))
return NF_DROP;
/* WARNING: This code causes reentry within iptables.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 010320 Martin Josefsson <gandalf@wlug.westbo.se>
- * * copied ipt_BALANCE.c to ipt_SAME.c and changed a few things.
- * 010728 Martin Josefsson <gandalf@wlug.westbo.se>
- * * added --nodst to not include destination-ip in new source
- * calculations.
- * * added some more sanity-checks.
- * 010729 Martin Josefsson <gandalf@wlug.westbo.se>
- * * fixed a buggy if-statement in same_check(), should have
- * used ntohl() but didn't.
- * * added support for multiple ranges. IPT_SAME_MAX_RANGE is
- * defined in linux/include/linux/netfilter_ipv4/ipt_SAME.h
- * and is currently set to 10.
- * * added support for 1-address range, nice to have now that
- * we have multiple ranges.
*/
#include <linux/types.h>
#include <linux/ip.h>
#include <net/checksum.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter/x_tables.h>
-#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat_rule.h>
-#else
-#include <linux/netfilter_ipv4/ip_nat_rule.h>
-#endif
#include <linux/netfilter_ipv4/ipt_SAME.h>
MODULE_LICENSE("GPL");
const struct xt_target *target,
const void *targinfo)
{
- struct ip_conntrack *ct;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
u_int32_t tmpip, aindex;
__be32 new_ip;
const struct ipt_same_info *same = targinfo;
- struct ip_nat_range newrange;
- const struct ip_conntrack_tuple *t;
+ struct nf_nat_range newrange;
+ const struct nf_conntrack_tuple *t;
- IP_NF_ASSERT(hooknum == NF_IP_PRE_ROUTING ||
+ NF_CT_ASSERT(hooknum == NF_IP_PRE_ROUTING ||
hooknum == NF_IP_POST_ROUTING);
- ct = ip_conntrack_get(*pskb, &ctinfo);
+ ct = nf_ct_get(*pskb, &ctinfo);
t = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
Here we calculate the index in same->iparray which
holds the ipaddress we should use */
-#ifdef CONFIG_NF_NAT_NEEDED
tmpip = ntohl(t->src.u3.ip);
if (!(same->info & IPT_SAME_NODST))
tmpip += ntohl(t->dst.u3.ip);
-#else
- tmpip = ntohl(t->src.ip);
-
- if (!(same->info & IPT_SAME_NODST))
- tmpip += ntohl(t->dst.ip);
-#endif
aindex = tmpip % same->ipnum;
new_ip = htonl(same->iparray[aindex]);
NIPQUAD(new_ip));
/* Transfer from original range. */
- newrange = ((struct ip_nat_range)
+ newrange = ((struct nf_nat_range)
{ same->range[0].flags, new_ip, new_ip,
/* FIXME: Use ports from correct range! */
same->range[0].min, same->range[0].max });
/* Hand modified range to generic setup. */
- return ip_nat_setup_info(ct, &newrange, hooknum);
+ return nf_nat_setup_info(ct, &newrange, hooknum);
}
static struct xt_target same_reg = {
const void *targinfo)
{
const struct ipt_tos_target_info *tosinfo = targinfo;
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
if ((iph->tos & IPTOS_TOS_MASK) != tosinfo->tos) {
__u8 oldtos;
if (!skb_make_writable(pskb, sizeof(struct iphdr)))
return NF_DROP;
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
oldtos = iph->tos;
iph->tos = (iph->tos & IPTOS_PREC_MASK) | tosinfo->tos;
nf_csum_replace2(&iph->check, htons(oldtos), htons(iph->tos));
if (!skb_make_writable(pskb, (*pskb)->len))
return NF_DROP;
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
switch (info->mode) {
case IPT_TTL_SET:
* netfilter module for userspace packet logging daemons
*
* (C) 2000-2004 by Harald Welte <laforge@netfilter.org>
- *
- * 2000/09/22 ulog-cprange feature added
- * 2001/01/04 in-kernel queue as proposed by Sebastian Zander
- * <zander@fokus.gmd.de>
- * 2001/01/30 per-rule nlgroup conflicts with global queue.
- * nlgroup now global (sysctl)
- * 2001/04/19 ulog-queue reworked, now fixed buffer size specified at
- * module loadtime -HW
- * 2002/07/07 remove broken nflog_rcv() function -HW
- * 2002/08/29 fix shifted/unshifted nlgroup bug -HW
- * 2002/10/30 fix uninitialized mac_len field - <Anders K. Pedersen>
- * 2004/10/25 fix erroneous calculation of 'len' parameter to NLMSG_PUT
- * resulting in bogus 'error during NLMSG_PUT' messages.
- *
* (C) 1999-2001 Paul `Rusty' Russell
* (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
*
* flushtimeout:
* Specify, after how many hundredths of a second the queue should be
* flushed even if it is not full yet.
- *
- * ipt_ULOG.c,v 1.22 2002/10/30 09:07:31 laforge Exp
*/
#include <linux/module.h>
ulog_packet_msg_t *pm;
size_t size, copy_len;
struct nlmsghdr *nlh;
+ struct timeval tv;
/* ffs == find first bit set, necessary because userspace
* is already shifting groupnumber, but we need unshifted.
pm = NLMSG_DATA(nlh);
/* We might not have a timestamp, get one */
- if (skb->tstamp.off_sec == 0)
+ if (skb->tstamp.tv64 == 0)
__net_timestamp((struct sk_buff *)skb);
/* copy hook, prefix, timestamp, payload, etc. */
pm->data_len = copy_len;
- put_unaligned(skb->tstamp.off_sec, &pm->timestamp_sec);
- put_unaligned(skb->tstamp.off_usec, &pm->timestamp_usec);
+ tv = ktime_to_timeval(skb->tstamp);
+ put_unaligned(tv.tv_sec, &pm->timestamp_sec);
+ put_unaligned(tv.tv_usec, &pm->timestamp_usec);
put_unaligned(skb->mark, &pm->mark);
pm->hook = hooknum;
if (prefix != NULL)
*(pm->prefix) = '\0';
if (in && in->hard_header_len > 0
- && skb->mac.raw != (void *) skb->nh.iph
+ && skb->mac_header != skb->network_header
&& in->hard_header_len <= ULOG_MAC_LEN) {
- memcpy(pm->mac, skb->mac.raw, in->hard_header_len);
+ memcpy(pm->mac, skb_mac_header(skb), in->hard_header_len);
pm->mac_len = in->hard_header_len;
} else
pm->mac_len = 0;
return 1;
}
+#ifdef CONFIG_COMPAT
+struct compat_ipt_ulog_info {
+ compat_uint_t nl_group;
+ compat_size_t copy_range;
+ compat_size_t qthreshold;
+ char prefix[ULOG_PREFIX_LEN];
+};
+
+static void compat_from_user(void *dst, void *src)
+{
+ struct compat_ipt_ulog_info *cl = src;
+ struct ipt_ulog_info l = {
+ .nl_group = cl->nl_group,
+ .copy_range = cl->copy_range,
+ .qthreshold = cl->qthreshold,
+ };
+
+ memcpy(l.prefix, cl->prefix, sizeof(l.prefix));
+ memcpy(dst, &l, sizeof(l));
+}
+
+static int compat_to_user(void __user *dst, void *src)
+{
+ struct ipt_ulog_info *l = src;
+ struct compat_ipt_ulog_info cl = {
+ .nl_group = l->nl_group,
+ .copy_range = l->copy_range,
+ .qthreshold = l->qthreshold,
+ };
+
+ memcpy(cl.prefix, l->prefix, sizeof(cl.prefix));
+ return copy_to_user(dst, &cl, sizeof(cl)) ? -EFAULT : 0;
+}
+#endif /* CONFIG_COMPAT */
+
static struct xt_target ipt_ulog_reg = {
.name = "ULOG",
.family = AF_INET,
.target = ipt_ulog_target,
.targetsize = sizeof(struct ipt_ulog_info),
.checkentry = ipt_ulog_checkentry,
+#ifdef CONFIG_COMPAT
+ .compatsize = sizeof(struct compat_ipt_ulog_info),
+ .compat_from_user = compat_from_user,
+ .compat_to_user = compat_to_user,
+#endif
.me = THIS_MODULE,
};
}
/* initialize ulog_buffers */
- for (i = 0; i < ULOG_MAXNLGROUPS; i++) {
- init_timer(&ulog_buffers[i].timer);
- ulog_buffers[i].timer.function = ulog_timer;
- ulog_buffers[i].timer.data = i;
- }
+ for (i = 0; i < ULOG_MAXNLGROUPS; i++)
+ setup_timer(&ulog_buffers[i].timer, ulog_timer, i);
nflognl = netlink_kernel_create(NETLINK_NFLOG, ULOG_MAXNLGROUPS, NULL,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (!nflognl)
return -ENOMEM;
int offset, unsigned int protoff, int *hotdrop)
{
const struct ipt_addrtype_info *info = matchinfo;
- const struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
int ret = 1;
if (info->source)
/* IP tables module for matching the value of the IPv4 and TCP ECN bits
- *
- * ipt_ecn.c,v 1.3 2002/05/29 15:09:00 laforge Exp
*
* (C) 2002 by Harald Welte <laforge@gnumonks.org>
*
#include <linux/in.h>
#include <linux/ip.h>
+#include <net/ip.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/tcp.h>
static inline int match_ip(const struct sk_buff *skb,
const struct ipt_ecn_info *einfo)
{
- return ((skb->nh.iph->tos&IPT_ECN_IP_MASK) == einfo->ip_ect);
+ return (ip_hdr(skb)->tos & IPT_ECN_IP_MASK) == einfo->ip_ect;
}
static inline int match_tcp(const struct sk_buff *skb,
/* In practice, TCP match does this, so can't fail. But let's
* be good citizens.
*/
- th = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
- sizeof(_tcph), &_tcph);
+ th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
if (th == NULL) {
*hotdrop = 0;
return 0;
return 0;
if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
- if (skb->nh.iph->protocol != IPPROTO_TCP)
+ if (ip_hdr(skb)->protocol != IPPROTO_TCP)
return 0;
if (!match_tcp(skb, info, hotdrop))
return 0;
int offset, unsigned int protoff, int *hotdrop)
{
const struct ipt_iprange_info *info = matchinfo;
- const struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
if (info->flags & IPRANGE_SRC) {
if (((ntohl(iph->saddr) < ntohl(info->src.min_ip))
int ret = info->invert;
if (info->side == IPT_RECENT_DEST)
- addr = skb->nh.iph->daddr;
+ addr = ip_hdr(skb)->daddr;
else
- addr = skb->nh.iph->saddr;
+ addr = ip_hdr(skb)->saddr;
- ttl = skb->nh.iph->ttl;
+ ttl = ip_hdr(skb)->ttl;
/* use TTL as seen before forwarding */
if (out && !skb->sk)
ttl++;
{
const struct ipt_tos_info *info = matchinfo;
- return (skb->nh.iph->tos == info->tos) ^ info->invert;
+ return (ip_hdr(skb)->tos == info->tos) ^ info->invert;
}
static struct xt_match tos_match = {
/* IP tables module for matching the value of the TTL
- *
- * ipt_ttl.c,v 1.5 2000/11/13 11:16:08 laforge Exp
*
* (C) 2000,2001 by Harald Welte <laforge@netfilter.org>
*
int offset, unsigned int protoff, int *hotdrop)
{
const struct ipt_ttl_info *info = matchinfo;
+ const u8 ttl = ip_hdr(skb)->ttl;
switch (info->mode) {
case IPT_TTL_EQ:
- return (skb->nh.iph->ttl == info->ttl);
+ return (ttl == info->ttl);
break;
case IPT_TTL_NE:
- return (!(skb->nh.iph->ttl == info->ttl));
+ return (!(ttl == info->ttl));
break;
case IPT_TTL_LT:
- return (skb->nh.iph->ttl < info->ttl);
+ return (ttl < info->ttl);
break;
case IPT_TTL_GT:
- return (skb->nh.iph->ttl > info->ttl);
+ return (ttl > info->ttl);
break;
default:
printk(KERN_WARNING "ipt_ttl: unknown mode %d\n",
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/netfilter_ipv4/ip_tables.h>
+#include <net/ip.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
{
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr)) {
+ || ip_hdrlen(*pskb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ipt_hook: happy cracking.\n");
return NF_ACCEPT;
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * Extended to all five netfilter hooks by Brad Chapman & Harald Welte
*/
#include <linux/module.h>
#include <linux/netfilter_ipv4/ip_tables.h>
#include <net/sock.h>
#include <net/route.h>
#include <linux/ip.h>
+#include <net/ip.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
int (*okfn)(struct sk_buff *))
{
unsigned int ret;
+ const struct iphdr *iph;
u_int8_t tos;
__be32 saddr, daddr;
u_int32_t mark;
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr)) {
+ || ip_hdrlen(*pskb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ipt_hook: happy cracking.\n");
return NF_ACCEPT;
/* Save things which could affect route */
mark = (*pskb)->mark;
- saddr = (*pskb)->nh.iph->saddr;
- daddr = (*pskb)->nh.iph->daddr;
- tos = (*pskb)->nh.iph->tos;
+ iph = ip_hdr(*pskb);
+ saddr = iph->saddr;
+ daddr = iph->daddr;
+ tos = iph->tos;
ret = ipt_do_table(pskb, hook, in, out, &packet_mangler);
/* Reroute for ANY change. */
- if (ret != NF_DROP && ret != NF_STOLEN && ret != NF_QUEUE
- && ((*pskb)->nh.iph->saddr != saddr
- || (*pskb)->nh.iph->daddr != daddr
- || (*pskb)->mark != mark
- || (*pskb)->nh.iph->tos != tos))
- if (ip_route_me_harder(pskb, RTN_UNSPEC))
- ret = NF_DROP;
+ if (ret != NF_DROP && ret != NF_STOLEN && ret != NF_QUEUE) {
+ iph = ip_hdr(*pskb);
+
+ if (iph->saddr != saddr ||
+ iph->daddr != daddr ||
+ (*pskb)->mark != mark ||
+ iph->tos != tos)
+ if (ip_route_me_harder(pskb, RTN_UNSPEC))
+ ret = NF_DROP;
+ }
return ret;
}
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - move L3 protocol dependent part to this file.
- * 23 Mar 2004: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - add get_features() to support various size of conntrack
- * structures.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_standalone.c
*/
#include <linux/types.h>
local_bh_enable();
if (skb)
- ip_send_check(skb->nh.iph);
+ ip_send_check(ip_hdr(skb));
return skb;
}
u_int8_t *protonum)
{
/* Never happen */
- if ((*pskb)->nh.iph->frag_off & htons(IP_OFFSET)) {
+ if (ip_hdr(*pskb)->frag_off & htons(IP_OFFSET)) {
if (net_ratelimit()) {
printk(KERN_ERR "ipv4_prepare: Frag of proto %u (hook=%u)\n",
- (*pskb)->nh.iph->protocol, hooknum);
+ ip_hdr(*pskb)->protocol, hooknum);
}
return -NF_DROP;
}
- *dataoff = (*pskb)->nh.raw - (*pskb)->data + (*pskb)->nh.iph->ihl*4;
- *protonum = (*pskb)->nh.iph->protocol;
+ *dataoff = skb_network_offset(*pskb) + ip_hdrlen(*pskb);
+ *protonum = ip_hdr(*pskb)->protocol;
return NF_ACCEPT;
}
return NF_ACCEPT;
return help->helper->help(pskb,
- (*pskb)->nh.raw - (*pskb)->data
- + (*pskb)->nh.iph->ihl*4,
- ct, ctinfo);
+ skb_network_offset(*pskb) + ip_hdrlen(*pskb),
+ ct, ctinfo);
}
static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
#endif
/* Gather fragments. */
- if ((*pskb)->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
+ if (ip_hdr(*pskb)->frag_off & htons(IP_MF | IP_OFFSET)) {
*pskb = nf_ct_ipv4_gather_frags(*pskb,
hooknum == NF_IP_PRE_ROUTING ?
IP_DEFRAG_CONNTRACK_IN :
{
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr)) {
+ || ip_hdrlen(*pskb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ipt_hook: happy cracking.\n");
return NF_ACCEPT;
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - enable working with Layer 3 protocol independent connection tracking.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_proto_icmp.c
*/
#include <linux/types.h>
NF_CT_ASSERT(skb->nfct == NULL);
/* Not enough header? */
- inside = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_in), &_in);
+ inside = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_in), &_in);
if (inside == NULL)
return -NF_ACCEPT;
/* rcu_read_lock()ed by nf_hook_slow */
innerproto = __nf_ct_l4proto_find(PF_INET, inside->ip.protocol);
- dataoff = skb->nh.iph->ihl*4 + sizeof(inside->icmp);
+ dataoff = ip_hdrlen(skb) + sizeof(inside->icmp);
/* Are they talking about one of our connections? */
if (!nf_ct_get_tuple(skb, dataoff, dataoff + inside->ip.ihl*4, PF_INET,
inside->ip.protocol, &origtuple,
struct icmphdr _ih, *icmph;
/* Not enough header? */
- icmph = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_ih), &_ih);
+ icmph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_ih), &_ih);
if (icmph == NULL) {
if (LOG_INVALID(IPPROTO_ICMP))
nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
} *inside;
struct nf_conntrack_l4proto *l4proto;
struct nf_conntrack_tuple inner, target;
- int hdrlen = (*pskb)->nh.iph->ihl * 4;
+ int hdrlen = ip_hdrlen(*pskb);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
unsigned long statusbit;
enum nf_nat_manip_type manip = HOOK2MANIP(hooknum);
if (!skb_make_writable(pskb, hdrlen + sizeof(*inside)))
return 0;
- inside = (void *)(*pskb)->data + (*pskb)->nh.iph->ihl*4;
+ inside = (void *)(*pskb)->data + ip_hdrlen(*pskb);
/* We're actually going to mangle it beyond trivial checksum
adjustment, so make sure the current checksum is correct. */
l4proto = __nf_ct_l4proto_find(PF_INET, inside->ip.protocol);
if (!nf_ct_get_tuple(*pskb,
- (*pskb)->nh.iph->ihl*4 + sizeof(struct icmphdr),
- (*pskb)->nh.iph->ihl*4 +
- sizeof(struct icmphdr) + inside->ip.ihl*4,
+ ip_hdrlen(*pskb) + sizeof(struct icmphdr),
+ (ip_hdrlen(*pskb) +
+ sizeof(struct icmphdr) + inside->ip.ihl * 4),
(u_int16_t)AF_INET,
inside->ip.protocol,
&inner, l3proto, l4proto))
packet: PREROUTING (DST manip), routing produces ICMP, goes
through POSTROUTING (which must correct the DST manip). */
if (!manip_pkt(inside->ip.protocol, pskb,
- (*pskb)->nh.iph->ihl*4 + sizeof(inside->icmp),
+ ip_hdrlen(*pskb) + sizeof(inside->icmp),
&ct->tuplehash[!dir].tuple,
!manip))
return 0;
if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
/* Reloading "inside" here since manip_pkt inner. */
- inside = (void *)(*pskb)->data + (*pskb)->nh.iph->ihl*4;
+ inside = (void *)(*pskb)->data + ip_hdrlen(*pskb);
inside->icmp.checksum = 0;
inside->icmp.checksum =
csum_fold(skb_checksum(*pskb, hdrlen,
unsigned int addroff, __be32 ip, __be16 port)
{
enum ip_conntrack_info ctinfo;
- struct nf_conn *ct = ip_conntrack_get(*pskb, &ctinfo);
+ struct nf_conn *ct = nf_ct_get(*pskb, &ctinfo);
struct {
__be32 ip;
__be16 port;
buf.port = port;
addroff += dataoff;
- if ((*pskb)->nh.iph->protocol == IPPROTO_TCP) {
+ if (ip_hdr(*pskb)->protocol == IPPROTO_TCP) {
if (!nf_nat_mangle_tcp_packet(pskb, ct, ctinfo,
addroff, sizeof(buf),
(char *) &buf, sizeof(buf))) {
}
/* Relocate data pointer */
- th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
+ th = skb_header_pointer(*pskb, ip_hdrlen(*pskb),
sizeof(_tcph), &_tcph);
if (th == NULL)
return -1;
- *data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
+ *data = (*pskb)->data + ip_hdrlen(*pskb) +
th->doff * 4 + dataoff;
} else {
if (!nf_nat_mangle_udp_packet(pskb, ct, ctinfo,
/* nf_nat_mangle_udp_packet uses skb_make_writable() to copy
* or pull everything in a linear buffer, so we can safely
* use the skb pointers now */
- *data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
- sizeof(struct udphdr);
+ *data = ((*pskb)->data + ip_hdrlen(*pskb) +
+ sizeof(struct udphdr));
}
return 0;
static void ip_nat_q931_expect(struct nf_conn *new,
struct nf_conntrack_expect *this)
{
- struct ip_nat_range range;
+ struct nf_nat_range range;
if (this->tuple.src.u3.ip != 0) { /* Only accept calls from GK */
nf_nat_follow_master(new, this);
unsigned char *data;
BUG_ON(skb_is_nonlinear(skb));
- data = (unsigned char *)skb->nh.iph + dataoff;
+ data = skb_network_header(skb) + dataoff;
/* move post-replacement */
memmove(data + match_offset + rep_len,
data + match_offset + match_len,
- skb->tail - (data + match_offset + match_len));
+ skb->tail - (skb->network_header + dataoff +
+ match_offset + match_len));
/* insert data from buffer */
memcpy(data + match_offset, rep_buffer, rep_len);
}
/* fix IP hdr checksum information */
- skb->nh.iph->tot_len = htons(skb->len);
- ip_send_check(skb->nh.iph);
+ ip_hdr(skb)->tot_len = htons(skb->len);
+ ip_send_check(ip_hdr(skb));
}
/* Unusual, but possible case. */
const char *rep_buffer,
unsigned int rep_len)
{
+ struct rtable *rt = (struct rtable *)(*pskb)->dst;
struct iphdr *iph;
struct tcphdr *tcph;
int oldlen, datalen;
SKB_LINEAR_ASSERT(*pskb);
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
tcph = (void *)iph + iph->ihl*4;
oldlen = (*pskb)->len - iph->ihl*4;
datalen = (*pskb)->len - iph->ihl*4;
if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
- tcph->check = 0;
- tcph->check = tcp_v4_check(datalen,
- iph->saddr, iph->daddr,
- csum_partial((char *)tcph,
- datalen, 0));
+ if (!(rt->rt_flags & RTCF_LOCAL) &&
+ (*pskb)->dev->features & NETIF_F_ALL_CSUM) {
+ (*pskb)->ip_summed = CHECKSUM_PARTIAL;
+ (*pskb)->csum_start = skb_headroom(*pskb) +
+ skb_network_offset(*pskb) +
+ iph->ihl * 4;
+ (*pskb)->csum_offset = offsetof(struct tcphdr, check);
+ tcph->check = ~tcp_v4_check(datalen,
+ iph->saddr, iph->daddr, 0);
+ } else {
+ tcph->check = 0;
+ tcph->check = tcp_v4_check(datalen,
+ iph->saddr, iph->daddr,
+ csum_partial((char *)tcph,
+ datalen, 0));
+ }
} else
nf_proto_csum_replace2(&tcph->check, *pskb,
htons(oldlen), htons(datalen), 1);
(int)rep_len - (int)match_len,
ct, ctinfo);
/* Tell TCP window tracking about seq change */
- nf_conntrack_tcp_update(*pskb, (*pskb)->nh.iph->ihl*4,
+ nf_conntrack_tcp_update(*pskb, ip_hdrlen(*pskb),
ct, CTINFO2DIR(ctinfo));
}
return 1;
const char *rep_buffer,
unsigned int rep_len)
{
+ struct rtable *rt = (struct rtable *)(*pskb)->dst;
struct iphdr *iph;
struct udphdr *udph;
int datalen, oldlen;
/* UDP helpers might accidentally mangle the wrong packet */
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
if ((*pskb)->len < iph->ihl*4 + sizeof(*udph) +
match_offset + match_len)
return 0;
!enlarge_skb(pskb, rep_len - match_len))
return 0;
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
udph = (void *)iph + iph->ihl*4;
oldlen = (*pskb)->len - iph->ihl*4;
return 1;
if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
- udph->check = 0;
- udph->check = csum_tcpudp_magic(iph->saddr, iph->daddr,
- datalen, IPPROTO_UDP,
- csum_partial((char *)udph,
- datalen, 0));
- if (!udph->check)
- udph->check = CSUM_MANGLED_0;
+ if (!(rt->rt_flags & RTCF_LOCAL) &&
+ (*pskb)->dev->features & NETIF_F_ALL_CSUM) {
+ (*pskb)->ip_summed = CHECKSUM_PARTIAL;
+ (*pskb)->csum_start = skb_headroom(*pskb) +
+ skb_network_offset(*pskb) +
+ iph->ihl * 4;
+ (*pskb)->csum_offset = offsetof(struct udphdr, check);
+ udph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
+ datalen, IPPROTO_UDP,
+ 0);
+ } else {
+ udph->check = 0;
+ udph->check = csum_tcpudp_magic(iph->saddr, iph->daddr,
+ datalen, IPPROTO_UDP,
+ csum_partial((char *)udph,
+ datalen, 0));
+ if (!udph->check)
+ udph->check = CSUM_MANGLED_0;
+ }
} else
nf_proto_csum_replace2(&udph->check, *pskb,
htons(oldlen), htons(datalen), 1);
unsigned int dir, optoff, optend;
struct nf_conn_nat *nat = nfct_nat(ct);
- optoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct tcphdr);
- optend = (*pskb)->nh.iph->ihl*4 + tcph->doff*4;
+ optoff = ip_hdrlen(*pskb) + sizeof(struct tcphdr);
+ optend = ip_hdrlen(*pskb) + tcph->doff * 4;
if (!skb_make_writable(pskb, optend))
return 0;
this_way = &nat->info.seq[dir];
other_way = &nat->info.seq[!dir];
- if (!skb_make_writable(pskb, (*pskb)->nh.iph->ihl*4+sizeof(*tcph)))
+ if (!skb_make_writable(pskb, ip_hdrlen(*pskb) + sizeof(*tcph)))
return 0;
- tcph = (void *)(*pskb)->data + (*pskb)->nh.iph->ihl*4;
+ tcph = (void *)(*pskb)->data + ip_hdrlen(*pskb);
if (after(ntohl(tcph->seq), this_way->correction_pos))
newseq = htonl(ntohl(tcph->seq) + this_way->offset_after);
else
if (!nf_nat_sack_adjust(pskb, tcph, ct, ctinfo))
return 0;
- nf_conntrack_tcp_update(*pskb, (*pskb)->nh.iph->ihl*4, ct, dir);
+ nf_conntrack_tcp_update(*pskb, ip_hdrlen(*pskb), ct, dir);
return 1;
}
struct nf_conntrack_tuple t;
struct nf_ct_pptp_master *ct_pptp_info;
struct nf_nat_pptp *nat_pptp_info;
- struct ip_nat_range range;
+ struct nf_nat_range range;
ct_pptp_info = &nfct_help(master)->help.ct_pptp_info;
nat_pptp_info = &nfct_nat(master)->help.nat_pptp_info;
if (hooknum == NF_IP_LOCAL_OUT &&
mr->range[0].flags & IP_NAT_RANGE_MAP_IPS)
- warn_if_extra_mangle((*pskb)->nh.iph->daddr,
+ warn_if_extra_mangle(ip_hdr(*pskb)->daddr,
mr->range[0].min_ip);
return nf_nat_setup_info(ct, &mr->range[0], hooknum);
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
+#include <net/ip.h>
#include <linux/udp.h>
#include <net/netfilter/nf_nat.h>
if (!nf_nat_mangle_udp_packet(pskb, ct, ctinfo,
matchoff, matchlen, addr, addrlen))
return 0;
- *dptr = (*pskb)->data + (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
+ *dptr = (*pskb)->data + ip_hdrlen(*pskb) + sizeof(struct udphdr);
return 1;
}
struct addr_map map;
int dataoff, datalen;
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
+ dataoff = ip_hdrlen(*pskb) + sizeof(struct udphdr);
datalen = (*pskb)->len - dataoff;
if (datalen < sizeof("SIP/2.0") - 1)
return NF_DROP;
return 0;
/* We need to reload this. Thanks Patrick. */
- *dptr = (*pskb)->data + (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
+ *dptr = (*pskb)->data + ip_hdrlen(*pskb) + sizeof(struct udphdr);
return 1;
}
char buffer[sizeof("65536")];
int bufflen;
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
+ dataoff = ip_hdrlen(*pskb) + sizeof(struct udphdr);
/* Get actual SDP lenght */
if (ct_sip_get_info(ct, dptr, (*pskb)->len - dataoff, &matchoff,
char buffer[sizeof("nnn.nnn.nnn.nnn")];
unsigned int dataoff, bufflen;
- dataoff = (*pskb)->nh.iph->ihl*4 + sizeof(struct udphdr);
+ dataoff = ip_hdrlen(*pskb) + sizeof(struct udphdr);
/* Mangle owner and contact info. */
bufflen = sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(newip));
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: James Morris <jmorris@intercode.com.au>
- *
- * Updates:
- * 2000-08-06: Convert to new helper API (Harald Welte).
- *
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
enum ip_conntrack_info ctinfo,
struct sk_buff **pskb)
{
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
struct udphdr *udph = (struct udphdr *)((__be32 *)iph + iph->ihl);
u_int16_t udplen = ntohs(udph->len);
u_int16_t paylen = udplen - sizeof(struct udphdr);
{
int dir = CTINFO2DIR(ctinfo);
unsigned int ret;
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
struct udphdr *udph = (struct udphdr *)((u_int32_t *)iph + iph->ihl);
/* SNMP replies and originating SNMP traps get mangled */
/* We never see fragments: conntrack defrags on pre-routing
and local-out, and nf_nat_out protects post-routing. */
- NF_CT_ASSERT(!((*pskb)->nh.iph->frag_off
- & htons(IP_MF|IP_OFFSET)));
+ NF_CT_ASSERT(!(ip_hdr(*pskb)->frag_off & htons(IP_MF | IP_OFFSET)));
ct = nf_ct_get(*pskb, &ctinfo);
/* Can't track? It's not due to stress, or conntrack would
/* Exception: ICMP redirect to new connection (not in
hash table yet). We must not let this through, in
case we're doing NAT to the same network. */
- if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) {
+ if (ip_hdr(*pskb)->protocol == IPPROTO_ICMP) {
struct icmphdr _hdr, *hp;
- hp = skb_header_pointer(*pskb,
- (*pskb)->nh.iph->ihl*4,
+ hp = skb_header_pointer(*pskb, ip_hdrlen(*pskb),
sizeof(_hdr), &_hdr);
if (hp != NULL &&
hp->type == ICMP_REDIRECT)
switch (ctinfo) {
case IP_CT_RELATED:
case IP_CT_RELATED+IP_CT_IS_REPLY:
- if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) {
+ if (ip_hdr(*pskb)->protocol == IPPROTO_ICMP) {
if (!nf_nat_icmp_reply_translation(ct, ctinfo,
hooknum, pskb))
return NF_DROP;
int (*okfn)(struct sk_buff *))
{
unsigned int ret;
- __be32 daddr = (*pskb)->nh.iph->daddr;
+ __be32 daddr = ip_hdr(*pskb)->daddr;
ret = nf_nat_fn(hooknum, pskb, in, out, okfn);
if (ret != NF_DROP && ret != NF_STOLEN &&
- daddr != (*pskb)->nh.iph->daddr) {
+ daddr != ip_hdr(*pskb)->daddr) {
dst_release((*pskb)->dst);
(*pskb)->dst = NULL;
}
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr) ||
- (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr))
+ ip_hdrlen(*pskb) < sizeof(struct iphdr))
return NF_ACCEPT;
ret = nf_nat_fn(hooknum, pskb, in, out, okfn);
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr) ||
- (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr))
+ ip_hdrlen(*pskb) < sizeof(struct iphdr))
return NF_ACCEPT;
ret = nf_nat_fn(hooknum, pskb, in, out, okfn);
.release = single_release,
};
-static unsigned long
-fold_field(void *mib[], int offt)
-{
- unsigned long res = 0;
- int i;
-
- for_each_possible_cpu(i) {
- res += *(((unsigned long *) per_cpu_ptr(mib[0], i)) + offt);
- res += *(((unsigned long *) per_cpu_ptr(mib[1], i)) + offt);
- }
- return res;
-}
-
/* snmp items */
static const struct snmp_mib snmp4_ipstats_list[] = {
SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES),
for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) ip_statistics,
- snmp4_ipstats_list[i].entry));
+ snmp_fold_field((void **)ip_statistics,
+ snmp4_ipstats_list[i].entry));
seq_puts(seq, "\nIcmp:");
for (i = 0; snmp4_icmp_list[i].name != NULL; i++)
seq_puts(seq, "\nIcmp:");
for (i = 0; snmp4_icmp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) icmp_statistics,
- snmp4_icmp_list[i].entry));
+ snmp_fold_field((void **)icmp_statistics,
+ snmp4_icmp_list[i].entry));
seq_puts(seq, "\nTcp:");
for (i = 0; snmp4_tcp_list[i].name != NULL; i++)
/* MaxConn field is signed, RFC 2012 */
if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
seq_printf(seq, " %ld",
- fold_field((void **) tcp_statistics,
- snmp4_tcp_list[i].entry));
+ snmp_fold_field((void **)tcp_statistics,
+ snmp4_tcp_list[i].entry));
else
seq_printf(seq, " %lu",
- fold_field((void **) tcp_statistics,
- snmp4_tcp_list[i].entry));
+ snmp_fold_field((void **)tcp_statistics,
+ snmp4_tcp_list[i].entry));
}
seq_puts(seq, "\nUdp:");
seq_puts(seq, "\nUdp:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) udp_statistics,
- snmp4_udp_list[i].entry));
+ snmp_fold_field((void **)udp_statistics,
+ snmp4_udp_list[i].entry));
/* the UDP and UDP-Lite MIBs are the same */
seq_puts(seq, "\nUdpLite:");
seq_puts(seq, "\nUdpLite:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) udplite_statistics,
- snmp4_udp_list[i].entry) );
+ snmp_fold_field((void **)udplite_statistics,
+ snmp4_udp_list[i].entry));
seq_putc(seq, '\n');
return 0;
seq_puts(seq, "\nTcpExt:");
for (i = 0; snmp4_net_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) net_statistics,
- snmp4_net_list[i].entry));
+ snmp_fold_field((void **)net_statistics,
+ snmp4_net_list[i].entry));
seq_putc(seq, '\n');
return 0;
#include <net/ipip.h>
#include <linux/igmp.h>
-struct net_protocol *inet_protos[MAX_INET_PROTOS];
+struct net_protocol *inet_protos[MAX_INET_PROTOS] ____cacheline_aligned_in_smp;
static DEFINE_SPINLOCK(inet_proto_lock);
/*
if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
return 1;
- type = skb->h.icmph->type;
+ type = icmp_hdr(skb)->type;
if (type < 32) {
__u32 data = raw_sk(sk)->filter.data;
void raw_err (struct sock *sk, struct sk_buff *skb, u32 info)
{
struct inet_sock *inet = inet_sk(sk);
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
int err = 0;
int harderr = 0;
}
nf_reset(skb);
- skb_push(skb, skb->data - skb->nh.raw);
+ skb_push(skb, skb->data - skb_network_header(skb));
raw_rcv_skb(sk, skb);
return 0;
skb->priority = sk->sk_priority;
skb->dst = dst_clone(&rt->u.dst);
- skb->nh.iph = iph = (struct iphdr *)skb_put(skb, length);
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
+ skb_put(skb, length);
skb->ip_summed = CHECKSUM_NONE;
- skb->h.raw = skb->nh.raw;
+ skb->transport_header = skb->network_header;
err = memcpy_fromiovecend((void *)iph, from, 0, length);
if (err)
goto error_fault;
/* Copy the address. */
if (sin) {
sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
sin->sin_port = 0;
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
}
return 0;
}
-static struct seq_operations raw_seq_ops = {
+static const struct seq_operations raw_seq_ops = {
.start = raw_seq_start,
.next = raw_seq_next,
.stop = raw_seq_stop,
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
#include <linux/inetdevice.h>
#include <linux/igmp.h>
#include <linux/pkt_sched.h>
#include <net/xfrm.h>
#include <net/ip_mp_alg.h>
#include <net/netevent.h>
+#include <net/rtnetlink.h>
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
#endif
return 0;
}
-static struct seq_operations rt_cache_seq_ops = {
+static const struct seq_operations rt_cache_seq_ops = {
.start = rt_cache_seq_start,
.next = rt_cache_seq_next,
.stop = rt_cache_seq_stop,
return 0;
}
-static struct seq_operations rt_cpu_seq_ops = {
+static const struct seq_operations rt_cpu_seq_ops = {
.start = rt_cpu_seq_start,
.next = rt_cpu_seq_next,
.stop = rt_cpu_seq_stop,
static int ip_rt_bug(struct sk_buff *skb)
{
printk(KERN_DEBUG "ip_rt_bug: %u.%u.%u.%u -> %u.%u.%u.%u, %s\n",
- NIPQUAD(skb->nh.iph->saddr), NIPQUAD(skb->nh.iph->daddr),
+ NIPQUAD(ip_hdr(skb)->saddr), NIPQUAD(ip_hdr(skb)->daddr),
skb->dev ? skb->dev->name : "?");
kfree_skb(skb);
return 0;
printk(KERN_WARNING "martian source %u.%u.%u.%u from "
"%u.%u.%u.%u, on dev %s\n",
NIPQUAD(daddr), NIPQUAD(saddr), dev->name);
- if (dev->hard_header_len && skb->mac.raw) {
+ if (dev->hard_header_len && skb_mac_header_was_set(skb)) {
int i;
- unsigned char *p = skb->mac.raw;
+ const unsigned char *p = skb_mac_header(skb);
printk(KERN_WARNING "ll header: ");
for (i = 0; i < dev->hard_header_len; i++, p++) {
printk("%02x", *p);
rcu_read_lock();
if ((in_dev = __in_dev_get_rcu(dev)) != NULL) {
int our = ip_check_mc(in_dev, daddr, saddr,
- skb->nh.iph->protocol);
+ ip_hdr(skb)->protocol);
if (our
#ifdef CONFIG_IP_MROUTE
|| (!LOCAL_MCAST(daddr) && IN_DEV_MFORWARD(in_dev))
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
dev_out = ip_dev_find(oldflp->fl4_src);
- if (dev_out == NULL)
+ if ((dev_out == NULL) && !(sysctl_ip_nonlocal_bind))
goto out;
/* I removed check for oif == dev_out->oif here.
of another iface. --ANK
*/
- if (oldflp->oif == 0
+ if (dev_out && oldflp->oif == 0
&& (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
/* Special hack: user can direct multicasts
and limited broadcast via necessary interface
id = rt->peer->ip_id_count;
if (rt->peer->tcp_ts_stamp) {
ts = rt->peer->tcp_ts;
- tsage = xtime.tv_sec - rt->peer->tcp_ts_stamp;
+ tsage = get_seconds() - rt->peer->tcp_ts_stamp;
}
}
return -EMSGSIZE;
}
-int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
+static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
{
struct rtmsg *rtm;
struct nlattr *tb[RTA_MAX+1];
/* Reserve room for dummy headers, this skb can pass
through good chunk of routing engine.
*/
- skb->mac.raw = skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
/* Bugfix: need to give ip_route_input enough of an IP header to not gag. */
- skb->nh.iph->protocol = IPPROTO_ICMP;
+ ip_hdr(skb)->protocol = IPPROTO_ICMP;
skb_reserve(skb, MAX_HEADER + sizeof(struct iphdr));
src = tb[RTA_SRC] ? nla_get_be32(tb[RTA_SRC]) : 0;
xfrm_init();
xfrm4_init();
#endif
+ rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL);
+
return rc;
}
__u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
{
struct tcp_sock *tp = tcp_sk(sk);
+ const struct iphdr *iph = ip_hdr(skb);
+ const struct tcphdr *th = tcp_hdr(skb);
int mssind;
const __u16 mss = *mssp;
-
tp->last_synq_overflow = jiffies;
/* XXX sort msstab[] by probability? Binary search? */
NET_INC_STATS_BH(LINUX_MIB_SYNCOOKIESSENT);
- return secure_tcp_syn_cookie(skb->nh.iph->saddr, skb->nh.iph->daddr,
- skb->h.th->source, skb->h.th->dest,
- ntohl(skb->h.th->seq),
+ return secure_tcp_syn_cookie(iph->saddr, iph->daddr,
+ th->source, th->dest, ntohl(th->seq),
jiffies / (HZ * 60), mssind);
}
*/
static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
{
- __u32 seq;
- __u32 mssind;
-
- seq = ntohl(skb->h.th->seq)-1;
- mssind = check_tcp_syn_cookie(cookie,
- skb->nh.iph->saddr, skb->nh.iph->daddr,
- skb->h.th->source, skb->h.th->dest,
- seq, jiffies / (HZ * 60), COUNTER_TRIES);
+ const struct iphdr *iph = ip_hdr(skb);
+ const struct tcphdr *th = tcp_hdr(skb);
+ __u32 seq = ntohl(th->seq) - 1;
+ __u32 mssind = check_tcp_syn_cookie(cookie, iph->saddr, iph->daddr,
+ th->source, th->dest, seq,
+ jiffies / (HZ * 60),
+ COUNTER_TRIES);
return mssind < NUM_MSS ? msstab[mssind] + 1 : 0;
}
struct inet_request_sock *ireq;
struct tcp_request_sock *treq;
struct tcp_sock *tp = tcp_sk(sk);
- __u32 cookie = ntohl(skb->h.th->ack_seq) - 1;
+ const struct tcphdr *th = tcp_hdr(skb);
+ __u32 cookie = ntohl(th->ack_seq) - 1;
struct sock *ret = sk;
struct request_sock *req;
int mss;
struct rtable *rt;
__u8 rcv_wscale;
- if (!sysctl_tcp_syncookies || !skb->h.th->ack)
+ if (!sysctl_tcp_syncookies || !th->ack)
goto out;
if (time_after(jiffies, tp->last_synq_overflow + TCP_TIMEOUT_INIT) ||
}
ireq = inet_rsk(req);
treq = tcp_rsk(req);
- treq->rcv_isn = ntohl(skb->h.th->seq) - 1;
+ treq->rcv_isn = ntohl(th->seq) - 1;
treq->snt_isn = cookie;
req->mss = mss;
- ireq->rmt_port = skb->h.th->source;
- ireq->loc_addr = skb->nh.iph->daddr;
- ireq->rmt_addr = skb->nh.iph->saddr;
+ ireq->rmt_port = th->source;
+ ireq->loc_addr = ip_hdr(skb)->daddr;
+ ireq->rmt_addr = ip_hdr(skb)->saddr;
ireq->opt = NULL;
/* We throwed the options of the initial SYN away, so we hope
.tos = RT_CONN_FLAGS(sk) } },
.proto = IPPROTO_TCP,
.uli_u = { .ports =
- { .sport = skb->h.th->dest,
- .dport = skb->h.th->source } } };
+ { .sport = th->dest,
+ .dport = th->source } } };
security_req_classify_flow(req, &fl);
if (ip_route_output_key(&rt, &fl)) {
reqsk_free(req);
.mode = 0644,
.proc_handler = &proc_dointvec
},
+ {
+ .ctl_name = NET_TCP_FRTO_RESPONSE,
+ .procname = "tcp_frto_response",
+ .data = &sysctl_tcp_frto_response,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec
+ },
{
.ctl_name = NET_TCP_LOW_LATENCY,
.procname = "tcp_low_latency",
.proc_handler = &proc_allowed_congestion_control,
.strategy = &strategy_allowed_congestion_control,
},
+ {
+ .ctl_name = NET_TCP_MAX_SSTHRESH,
+ .procname = "tcp_max_ssthresh",
+ .data = &sysctl_tcp_max_ssthresh,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
{ .ctl_name = 0 }
};
* All the sk_stream_mem_schedule() is of this nature: accounting
* is strict, actions are advisory and have some latency.
*/
-int tcp_memory_pressure;
+int tcp_memory_pressure __read_mostly;
EXPORT_SYMBOL(tcp_memory_pressure);
/* Subtract 1, if FIN is in queue. */
if (answ && !skb_queue_empty(&sk->sk_receive_queue))
answ -=
- ((struct sk_buff *)sk->sk_receive_queue.prev)->h.th->fin;
+ tcp_hdr((struct sk_buff *)sk->sk_receive_queue.prev)->fin;
} else
answ = tp->urg_seq - tp->copied_seq;
release_sock(sk);
break;
default:
return -ENOIOCTLCMD;
- };
+ }
return put_user(answ, (int __user *)arg);
}
return after(tp->write_seq, tp->pushed_seq + (tp->max_window >> 1));
}
-static inline void skb_entail(struct sock *sk, struct tcp_sock *tp,
- struct sk_buff *skb)
+static inline void skb_entail(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
struct tcp_skb_cb *tcb = TCP_SKB_CB(skb);
skb->csum = 0;
tcb->flags = TCPCB_FLAG_ACK;
tcb->sacked = 0;
skb_header_release(skb);
- __skb_queue_tail(&sk->sk_write_queue, skb);
+ tcp_add_write_queue_tail(sk, skb);
sk_charge_skb(sk, skb);
- if (!sk->sk_send_head)
- sk->sk_send_head = skb;
if (tp->nonagle & TCP_NAGLE_PUSH)
tp->nonagle &= ~TCP_NAGLE_PUSH;
}
}
}
-static inline void tcp_push(struct sock *sk, struct tcp_sock *tp, int flags,
- int mss_now, int nonagle)
+static inline void tcp_push(struct sock *sk, int flags, int mss_now,
+ int nonagle)
{
- if (sk->sk_send_head) {
- struct sk_buff *skb = sk->sk_write_queue.prev;
+ struct tcp_sock *tp = tcp_sk(sk);
+
+ if (tcp_send_head(sk)) {
+ struct sk_buff *skb = tcp_write_queue_tail(sk);
if (!(flags & MSG_MORE) || forced_push(tp))
tcp_mark_push(tp, skb);
tcp_mark_urg(tp, flags, skb);
- __tcp_push_pending_frames(sk, tp, mss_now,
+ __tcp_push_pending_frames(sk, mss_now,
(flags & MSG_MORE) ? TCP_NAGLE_CORK : nonagle);
}
}
goto do_error;
while (psize > 0) {
- struct sk_buff *skb = sk->sk_write_queue.prev;
+ struct sk_buff *skb = tcp_write_queue_tail(sk);
struct page *page = pages[poffset / PAGE_SIZE];
int copy, i, can_coalesce;
int offset = poffset % PAGE_SIZE;
int size = min_t(size_t, psize, PAGE_SIZE - offset);
- if (!sk->sk_send_head || (copy = size_goal - skb->len) <= 0) {
+ if (!tcp_send_head(sk) || (copy = size_goal - skb->len) <= 0) {
new_segment:
if (!sk_stream_memory_free(sk))
goto wait_for_sndbuf;
if (!skb)
goto wait_for_memory;
- skb_entail(sk, tp, skb);
+ skb_entail(sk, skb);
copy = size_goal;
}
if (forced_push(tp)) {
tcp_mark_push(tp, skb);
- __tcp_push_pending_frames(sk, tp, mss_now, TCP_NAGLE_PUSH);
- } else if (skb == sk->sk_send_head)
+ __tcp_push_pending_frames(sk, mss_now, TCP_NAGLE_PUSH);
+ } else if (skb == tcp_send_head(sk))
tcp_push_one(sk, mss_now);
continue;
set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
wait_for_memory:
if (copied)
- tcp_push(sk, tp, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
+ tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)
goto do_error;
out:
if (copied)
- tcp_push(sk, tp, flags, mss_now, tp->nonagle);
+ tcp_push(sk, flags, mss_now, tp->nonagle);
return copied;
do_error:
#define TCP_PAGE(sk) (sk->sk_sndmsg_page)
#define TCP_OFF(sk) (sk->sk_sndmsg_off)
-static inline int select_size(struct sock *sk, struct tcp_sock *tp)
+static inline int select_size(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
int tmp = tp->mss_cache;
if (sk->sk_route_caps & NETIF_F_SG) {
while (seglen > 0) {
int copy;
- skb = sk->sk_write_queue.prev;
+ skb = tcp_write_queue_tail(sk);
- if (!sk->sk_send_head ||
+ if (!tcp_send_head(sk) ||
(copy = size_goal - skb->len) <= 0) {
new_segment:
if (!sk_stream_memory_free(sk))
goto wait_for_sndbuf;
- skb = sk_stream_alloc_pskb(sk, select_size(sk, tp),
+ skb = sk_stream_alloc_pskb(sk, select_size(sk),
0, sk->sk_allocation);
if (!skb)
goto wait_for_memory;
if (sk->sk_route_caps & NETIF_F_ALL_CSUM)
skb->ip_summed = CHECKSUM_PARTIAL;
- skb_entail(sk, tp, skb);
+ skb_entail(sk, skb);
copy = size_goal;
}
if (forced_push(tp)) {
tcp_mark_push(tp, skb);
- __tcp_push_pending_frames(sk, tp, mss_now, TCP_NAGLE_PUSH);
- } else if (skb == sk->sk_send_head)
+ __tcp_push_pending_frames(sk, mss_now, TCP_NAGLE_PUSH);
+ } else if (skb == tcp_send_head(sk))
tcp_push_one(sk, mss_now);
continue;
set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
wait_for_memory:
if (copied)
- tcp_push(sk, tp, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
+ tcp_push(sk, flags & ~MSG_MORE, mss_now, TCP_NAGLE_PUSH);
if ((err = sk_stream_wait_memory(sk, &timeo)) != 0)
goto do_error;
out:
if (copied)
- tcp_push(sk, tp, flags, mss_now, tp->nonagle);
+ tcp_push(sk, flags, mss_now, tp->nonagle);
TCP_CHECK_TIMER(sk);
release_sock(sk);
return copied;
do_fault:
if (!skb->len) {
- if (sk->sk_send_head == skb)
- sk->sk_send_head = NULL;
- __skb_unlink(skb, &sk->sk_write_queue);
+ tcp_unlink_write_queue(skb, sk);
+ /* It is the one place in all of TCP, except connection
+ * reset, where we can be unlinking the send_head.
+ */
+ tcp_check_send_head(sk, skb);
sk_stream_free_skb(sk, skb);
}
skb_queue_walk(&sk->sk_receive_queue, skb) {
offset = seq - TCP_SKB_CB(skb)->seq;
- if (skb->h.th->syn)
+ if (tcp_hdr(skb)->syn)
offset--;
- if (offset < skb->len || skb->h.th->fin) {
+ if (offset < skb->len || tcp_hdr(skb)->fin) {
*off = offset;
return skb;
}
if (offset != skb->len)
break;
}
- if (skb->h.th->fin) {
+ if (tcp_hdr(skb)->fin) {
sk_eat_skb(sk, skb, 0);
++seq;
break;
break;
}
offset = *seq - TCP_SKB_CB(skb)->seq;
- if (skb->h.th->syn)
+ if (tcp_hdr(skb)->syn)
offset--;
if (offset < skb->len)
goto found_ok_skb;
- if (skb->h.th->fin)
+ if (tcp_hdr(skb)->fin)
goto found_fin_ok;
BUG_TRAP(flags & MSG_PEEK);
skb = skb->next;
skip_copy:
if (tp->urg_data && after(tp->copied_seq, tp->urg_seq)) {
tp->urg_data = 0;
- tcp_fast_path_check(sk, tp);
+ tcp_fast_path_check(sk);
}
if (used + offset < skb->len)
continue;
- if (skb->h.th->fin)
+ if (tcp_hdr(skb)->fin)
goto found_fin_ok;
if (!(flags & MSG_PEEK)) {
sk_eat_skb(sk, skb, copied_early);
*/
while ((skb = __skb_dequeue(&sk->sk_receive_queue)) != NULL) {
u32 len = TCP_SKB_CB(skb)->end_seq - TCP_SKB_CB(skb)->seq -
- skb->h.th->fin;
+ tcp_hdr(skb)->fin;
data_was_unread += len;
__kfree_skb(skb);
}
tcp_clear_xmit_timers(sk);
__skb_queue_purge(&sk->sk_receive_queue);
- sk_stream_writequeue_purge(sk);
+ tcp_write_queue_purge(sk);
__skb_queue_purge(&tp->out_of_order_queue);
#ifdef CONFIG_NET_DMA
__skb_queue_purge(&sk->sk_async_wait_queue);
tcp_set_ca_state(sk, TCP_CA_Open);
tcp_clear_retrans(tp);
inet_csk_delack_init(sk);
- sk->sk_send_head = NULL;
+ tcp_init_send_head(sk);
tp->rx_opt.saw_tstamp = 0;
tcp_sack_reset(&tp->rx_opt);
__sk_dst_reset(sk);
* for currently queued segments.
*/
tp->nonagle |= TCP_NAGLE_OFF|TCP_NAGLE_PUSH;
- tcp_push_pending_frames(sk, tp);
+ tcp_push_pending_frames(sk);
} else {
tp->nonagle &= ~TCP_NAGLE_OFF;
}
tp->nonagle &= ~TCP_NAGLE_CORK;
if (tp->nonagle&TCP_NAGLE_OFF)
tp->nonagle |= TCP_NAGLE_PUSH;
- tcp_push_pending_frames(sk, tp);
+ tcp_push_pending_frames(sk);
}
break;
default:
err = -ENOPROTOOPT;
break;
- };
+ }
+
release_sock(sk);
return err;
}
return 0;
default:
return -ENOPROTOOPT;
- };
+ }
if (put_user(len, optlen))
return -EFAULT;
if (!pskb_may_pull(skb, sizeof(*th)))
goto out;
- th = skb->h.th;
+ th = tcp_hdr(skb);
thlen = th->doff * 4;
if (thlen < sizeof(*th))
goto out;
delta = htonl(oldlen + (thlen + len));
skb = segs;
- th = skb->h.th;
+ th = tcp_hdr(skb);
seq = ntohl(th->seq);
do {
th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
(__force u32)delta));
if (skb->ip_summed != CHECKSUM_PARTIAL)
- th->check = csum_fold(csum_partial(skb->h.raw, thlen,
- skb->csum));
+ th->check =
+ csum_fold(csum_partial(skb_transport_header(skb),
+ thlen, skb->csum));
seq += len;
skb = skb->next;
- th = skb->h.th;
+ th = tcp_hdr(skb);
th->seq = htonl(seq);
th->cwr = 0;
} while (skb->next);
- delta = htonl(oldlen + (skb->tail - skb->h.raw) + skb->data_len);
+ delta = htonl(oldlen + (skb->tail - skb->transport_header) +
+ skb->data_len);
th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
(__force u32)delta));
if (skb->ip_summed != CHECKSUM_PARTIAL)
- th->check = csum_fold(csum_partial(skb->h.raw, thlen,
- skb->csum));
+ th->check = csum_fold(csum_partial(skb_transport_header(skb),
+ thlen, skb->csum));
out:
return segs;
EXPORT_SYMBOL(__tcp_put_md5sig_pool);
#endif
+void tcp_done(struct sock *sk)
+{
+ if(sk->sk_state == TCP_SYN_SENT || sk->sk_state == TCP_SYN_RECV)
+ TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
+
+ tcp_set_state(sk, TCP_CLOSE);
+ tcp_clear_xmit_timers(sk);
+
+ sk->sk_shutdown = SHUTDOWN_MASK;
+
+ if (!sock_flag(sk, SOCK_DEAD))
+ sk->sk_state_change(sk);
+ else
+ inet_csk_destroy_sock(sk);
+}
+EXPORT_SYMBOL_GPL(tcp_done);
+
extern void __skb_cb_too_small_for_tcp(int, int);
extern struct tcp_congestion_ops tcp_reno;
/* Track delayed acknowledgment ratio using sliding window
* ratio = (15*ratio + sample) / 16
*/
-static void bictcp_acked(struct sock *sk, u32 cnt)
+static void bictcp_acked(struct sock *sk, u32 cnt, ktime_t last)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
#include <linux/list.h>
#include <net/tcp.h>
+int sysctl_tcp_max_ssthresh = 0;
+
static DEFINE_SPINLOCK(tcp_cong_list_lock);
static LIST_HEAD(tcp_cong_list);
struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_congestion_ops *ca;
- if (icsk->icsk_ca_ops != &tcp_init_congestion_ops)
- return;
+ /* if no choice made yet assign the current value set as default */
+ if (icsk->icsk_ca_ops == &tcp_init_congestion_ops) {
+ rcu_read_lock();
+ list_for_each_entry_rcu(ca, &tcp_cong_list, list) {
+ if (try_module_get(ca->owner)) {
+ icsk->icsk_ca_ops = ca;
+ break;
+ }
- rcu_read_lock();
- list_for_each_entry_rcu(ca, &tcp_cong_list, list) {
- if (try_module_get(ca->owner)) {
- icsk->icsk_ca_ops = ca;
- break;
+ /* fallback to next available */
}
-
+ rcu_read_unlock();
}
- rcu_read_unlock();
if (icsk->icsk_ca_ops->init)
icsk->icsk_ca_ops->init(sk);
#endif
if (ca) {
- ca->non_restricted = 1; /* default is always allowed */
+ ca->flags |= TCP_CONG_NON_RESTRICTED; /* default is always allowed */
list_move(&ca->list, &tcp_cong_list);
ret = 0;
}
*buf = '\0';
rcu_read_lock();
list_for_each_entry_rcu(ca, &tcp_cong_list, list) {
- if (!ca->non_restricted)
+ if (!(ca->flags & TCP_CONG_NON_RESTRICTED))
continue;
offs += snprintf(buf + offs, maxlen - offs,
"%s%s",
}
}
- /* pass 2 clear */
+ /* pass 2 clear old values */
list_for_each_entry_rcu(ca, &tcp_cong_list, list)
- ca->non_restricted = 0;
+ ca->flags &= ~TCP_CONG_NON_RESTRICTED;
/* pass 3 mark as allowed */
while ((name = strsep(&val, " ")) && *name) {
ca = tcp_ca_find(name);
WARN_ON(!ca);
if (ca)
- ca->non_restricted = 1;
+ ca->flags |= TCP_CONG_NON_RESTRICTED;
}
out:
spin_unlock(&tcp_cong_list_lock);
rcu_read_lock();
ca = tcp_ca_find(name);
+
/* no change asking for existing value */
if (ca == icsk->icsk_ca_ops)
goto out;
if (!ca)
err = -ENOENT;
- else if (!(ca->non_restricted || capable(CAP_NET_ADMIN)))
+ else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) || capable(CAP_NET_ADMIN)))
err = -EPERM;
else if (!try_module_get(ca->owner))
else {
tcp_cleanup_congestion_control(sk);
icsk->icsk_ca_ops = ca;
- if (icsk->icsk_ca_ops->init)
+
+ if (sk->sk_state != TCP_CLOSE && icsk->icsk_ca_ops->init)
icsk->icsk_ca_ops->init(sk);
}
out:
/*
- * Linear increase during slow start
+ * Slow start (exponential increase) with
+ * RFC3742 Limited Slow Start (fast linear increase) support.
*/
void tcp_slow_start(struct tcp_sock *tp)
{
+ int cnt = 0;
+
if (sysctl_tcp_abc) {
/* RFC3465: Slow Start
* TCP sender SHOULD increase cwnd by the number of
*/
if (tp->bytes_acked < tp->mss_cache)
return;
-
- /* We MAY increase by 2 if discovered delayed ack */
- if (sysctl_tcp_abc > 1 && tp->bytes_acked >= 2*tp->mss_cache) {
- if (tp->snd_cwnd < tp->snd_cwnd_clamp)
- tp->snd_cwnd++;
- }
}
+
+ if (sysctl_tcp_max_ssthresh > 0 &&
+ tp->snd_cwnd > sysctl_tcp_max_ssthresh)
+ cnt += sysctl_tcp_max_ssthresh>>1;
+ else
+ cnt += tp->snd_cwnd;
+
+ /* RFC3465: We MAY increase by 2 if discovered delayed ack */
+ if (sysctl_tcp_abc > 1 && tp->bytes_acked >= 2*tp->mss_cache)
+ cnt <<= 1;
tp->bytes_acked = 0;
- if (tp->snd_cwnd < tp->snd_cwnd_clamp)
- tp->snd_cwnd++;
+ tp->snd_cwnd_cnt += cnt;
+ while (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
+ tp->snd_cwnd_cnt -= tp->snd_cwnd;
+ if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+ tp->snd_cwnd++;
+ }
}
EXPORT_SYMBOL_GPL(tcp_slow_start);
EXPORT_SYMBOL_GPL(tcp_reno_min_cwnd);
struct tcp_congestion_ops tcp_reno = {
+ .flags = TCP_CONG_NON_RESTRICTED,
.name = "reno",
- .non_restricted = 1,
.owner = THIS_MODULE,
.ssthresh = tcp_reno_ssthresh,
.cong_avoid = tcp_reno_cong_avoid,
/*
- * TCP CUBIC: Binary Increase Congestion control for TCP v2.0
+ * TCP CUBIC: Binary Increase Congestion control for TCP v2.1
*
* This is from the implementation of CUBIC TCP in
* Injong Rhee, Lisong Xu.
module_param(tcp_friendliness, int, 0644);
MODULE_PARM_DESC(tcp_friendliness, "turn on/off tcp friendliness");
-#include <asm/div64.h>
-
/* BIC TCP Parameters */
struct bictcp {
u32 cnt; /* increase cwnd by 1 after ACKs */
tcp_sk(sk)->snd_ssthresh = initial_ssthresh;
}
-/* 64bit divisor, dividend and result. dynamic precision */
-static inline u_int64_t div64_64(u_int64_t dividend, u_int64_t divisor)
-{
- u_int32_t d = divisor;
-
- if (divisor > 0xffffffffULL) {
- unsigned int shift = fls(divisor >> 32);
-
- d = divisor >> shift;
- dividend >>= shift;
- }
-
- /* avoid 64 bit division if possible */
- if (dividend >> 32)
- do_div(dividend, d);
- else
- dividend = (uint32_t) dividend / d;
-
- return dividend;
-}
-
-/*
- * calculate the cubic root of x using Newton-Raphson
+/* calculate the cubic root of x using a table lookup followed by one
+ * Newton-Raphson iteration.
+ * Avg err ~= 0.195%
*/
static u32 cubic_root(u64 a)
{
- u32 x, x1;
-
- /* Initial estimate is based on:
- * cbrt(x) = exp(log(x) / 3)
+ u32 x, b, shift;
+ /*
+ * cbrt(x) MSB values for x MSB values in [0..63].
+ * Precomputed then refined by hand - Willy Tarreau
+ *
+ * For x in [0..63],
+ * v = cbrt(x << 18) - 1
+ * cbrt(x) = (v[x] + 10) >> 6
*/
- x = 1u << (fls64(a)/3);
+ static const u8 v[] = {
+ /* 0x00 */ 0, 54, 54, 54, 118, 118, 118, 118,
+ /* 0x08 */ 123, 129, 134, 138, 143, 147, 151, 156,
+ /* 0x10 */ 157, 161, 164, 168, 170, 173, 176, 179,
+ /* 0x18 */ 181, 185, 187, 190, 192, 194, 197, 199,
+ /* 0x20 */ 200, 202, 204, 206, 209, 211, 213, 215,
+ /* 0x28 */ 217, 219, 221, 222, 224, 225, 227, 229,
+ /* 0x30 */ 231, 232, 234, 236, 237, 239, 240, 242,
+ /* 0x38 */ 244, 245, 246, 248, 250, 251, 252, 254,
+ };
+
+ b = fls64(a);
+ if (b < 7) {
+ /* a in [0..63] */
+ return ((u32)v[(u32)a] + 35) >> 6;
+ }
+
+ b = ((b * 84) >> 8) - 1;
+ shift = (a >> (b * 3));
+
+ x = ((u32)(((u32)v[shift] + 10) << b)) >> 6;
/*
- * Iteration based on:
+ * Newton-Raphson iteration
* 2
* x = ( 2 * x + a / x ) / 3
* k+1 k k
*/
- do {
- x1 = x;
- x = (2 * x + (uint32_t) div64_64(a, x*x)) / 3;
- } while (abs(x1 - x) > 1);
-
+ x = (2 * x + (u32)div64_64(a, (u64)x * (u64)(x - 1)));
+ x = ((x * 341) >> 10);
return x;
}
if (ca->delay_min > 0) {
/* max increment = Smax * rtt / 0.1 */
min_cnt = (cwnd * HZ * 8)/(10 * max_increment * ca->delay_min);
- if (ca->cnt < min_cnt)
+
+ /* use concave growth when the target is above the origin */
+ if (ca->cnt < min_cnt && t >= ca->bic_K)
ca->cnt = min_cnt;
}
/* Track delayed acknowledgment ratio using sliding window
* ratio = (15*ratio + sample) / 16
*/
-static void bictcp_acked(struct sock *sk, u32 cnt)
+static void bictcp_acked(struct sock *sk, u32 cnt, ktime_t last)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
MODULE_AUTHOR("Sangtae Ha, Stephen Hemminger");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("CUBIC TCP");
-MODULE_VERSION("2.0");
+MODULE_VERSION("2.1");
}
}
-static void measure_achieved_throughput(struct sock *sk, u32 pkts_acked)
+static void measure_achieved_throughput(struct sock *sk, u32 pkts_acked, ktime_t last)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
const struct tcp_sock *tp = tcp_sk(sk);
ca->snd_cwnd_cents += odd;
/* check when fractions goes >=128 and increase cwnd by 1. */
- while(ca->snd_cwnd_cents >= 128) {
+ while (ca->snd_cwnd_cents >= 128) {
tp->snd_cwnd++;
ca->snd_cwnd_cents -= 128;
tp->snd_cwnd_cnt = 0;
--- /dev/null
+/*
+ * TCP Illinois congestion control.
+ * Home page:
+ * http://www.ews.uiuc.edu/~shaoliu/tcpillinois/index.html
+ *
+ * The algorithm is described in:
+ * "TCP-Illinois: A Loss and Delay-Based Congestion Control Algorithm
+ * for High-Speed Networks"
+ * http://www.ews.uiuc.edu/~shaoliu/papersandslides/liubassri06perf.pdf
+ *
+ * Implemented from description in paper and ns-2 simulation.
+ * Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
+ */
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/inet_diag.h>
+#include <asm/div64.h>
+#include <net/tcp.h>
+
+#define ALPHA_SHIFT 7
+#define ALPHA_SCALE (1u<<ALPHA_SHIFT)
+#define ALPHA_MIN ((3*ALPHA_SCALE)/10) /* ~0.3 */
+#define ALPHA_MAX (10*ALPHA_SCALE) /* 10.0 */
+#define ALPHA_BASE ALPHA_SCALE /* 1.0 */
+#define U32_MAX ((u32)~0U)
+#define RTT_MAX (U32_MAX / ALPHA_MAX) /* 3.3 secs */
+
+#define BETA_SHIFT 6
+#define BETA_SCALE (1u<<BETA_SHIFT)
+#define BETA_MIN (BETA_SCALE/8) /* 0.125 */
+#define BETA_MAX (BETA_SCALE/2) /* 0.5 */
+#define BETA_BASE BETA_MAX
+
+static int win_thresh __read_mostly = 15;
+module_param(win_thresh, int, 0);
+MODULE_PARM_DESC(win_thresh, "Window threshold for starting adaptive sizing");
+
+static int theta __read_mostly = 5;
+module_param(theta, int, 0);
+MODULE_PARM_DESC(theta, "# of fast RTT's before full growth");
+
+/* TCP Illinois Parameters */
+struct illinois {
+ u64 sum_rtt; /* sum of rtt's measured within last rtt */
+ u16 cnt_rtt; /* # of rtts measured within last rtt */
+ u32 base_rtt; /* min of all rtt in usec */
+ u32 max_rtt; /* max of all rtt in usec */
+ u32 end_seq; /* right edge of current RTT */
+ u32 alpha; /* Additive increase */
+ u32 beta; /* Muliplicative decrease */
+ u16 acked; /* # packets acked by current ACK */
+ u8 rtt_above; /* average rtt has gone above threshold */
+ u8 rtt_low; /* # of rtts measurements below threshold */
+};
+
+static void rtt_reset(struct sock *sk)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct illinois *ca = inet_csk_ca(sk);
+
+ ca->end_seq = tp->snd_nxt;
+ ca->cnt_rtt = 0;
+ ca->sum_rtt = 0;
+
+ /* TODO: age max_rtt? */
+}
+
+static void tcp_illinois_init(struct sock *sk)
+{
+ struct illinois *ca = inet_csk_ca(sk);
+
+ ca->alpha = ALPHA_MAX;
+ ca->beta = BETA_BASE;
+ ca->base_rtt = 0x7fffffff;
+ ca->max_rtt = 0;
+
+ ca->acked = 0;
+ ca->rtt_low = 0;
+ ca->rtt_above = 0;
+
+ rtt_reset(sk);
+}
+
+/* Measure RTT for each ack. */
+static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, ktime_t last)
+{
+ struct illinois *ca = inet_csk_ca(sk);
+ u32 rtt;
+
+ ca->acked = pkts_acked;
+
+ rtt = ktime_to_us(net_timedelta(last));
+
+ /* ignore bogus values, this prevents wraparound in alpha math */
+ if (rtt > RTT_MAX)
+ rtt = RTT_MAX;
+
+ /* keep track of minimum RTT seen so far */
+ if (ca->base_rtt > rtt)
+ ca->base_rtt = rtt;
+
+ /* and max */
+ if (ca->max_rtt < rtt)
+ ca->max_rtt = rtt;
+
+ ++ca->cnt_rtt;
+ ca->sum_rtt += rtt;
+}
+
+/* Maximum queuing delay */
+static inline u32 max_delay(const struct illinois *ca)
+{
+ return ca->max_rtt - ca->base_rtt;
+}
+
+/* Average queuing delay */
+static inline u32 avg_delay(const struct illinois *ca)
+{
+ u64 t = ca->sum_rtt;
+
+ do_div(t, ca->cnt_rtt);
+ return t - ca->base_rtt;
+}
+
+/*
+ * Compute value of alpha used for additive increase.
+ * If small window then use 1.0, equivalent to Reno.
+ *
+ * For larger windows, adjust based on average delay.
+ * A. If average delay is at minimum (we are uncongested),
+ * then use large alpha (10.0) to increase faster.
+ * B. If average delay is at maximum (getting congested)
+ * then use small alpha (0.3)
+ *
+ * The result is a convex window growth curve.
+ */
+static u32 alpha(struct illinois *ca, u32 da, u32 dm)
+{
+ u32 d1 = dm / 100; /* Low threshold */
+
+ if (da <= d1) {
+ /* If never got out of low delay zone, then use max */
+ if (!ca->rtt_above)
+ return ALPHA_MAX;
+
+ /* Wait for 5 good RTT's before allowing alpha to go alpha max.
+ * This prevents one good RTT from causing sudden window increase.
+ */
+ if (++ca->rtt_low < theta)
+ return ca->alpha;
+
+ ca->rtt_low = 0;
+ ca->rtt_above = 0;
+ return ALPHA_MAX;
+ }
+
+ ca->rtt_above = 1;
+
+ /*
+ * Based on:
+ *
+ * (dm - d1) amin amax
+ * k1 = -------------------
+ * amax - amin
+ *
+ * (dm - d1) amin
+ * k2 = ---------------- - d1
+ * amax - amin
+ *
+ * k1
+ * alpha = ----------
+ * k2 + da
+ */
+
+ dm -= d1;
+ da -= d1;
+ return (dm * ALPHA_MAX) /
+ (dm + (da * (ALPHA_MAX - ALPHA_MIN)) / ALPHA_MIN);
+}
+
+/*
+ * Beta used for multiplicative decrease.
+ * For small window sizes returns same value as Reno (0.5)
+ *
+ * If delay is small (10% of max) then beta = 1/8
+ * If delay is up to 80% of max then beta = 1/2
+ * In between is a linear function
+ */
+static u32 beta(u32 da, u32 dm)
+{
+ u32 d2, d3;
+
+ d2 = dm / 10;
+ if (da <= d2)
+ return BETA_MIN;
+
+ d3 = (8 * dm) / 10;
+ if (da >= d3 || d3 <= d2)
+ return BETA_MAX;
+
+ /*
+ * Based on:
+ *
+ * bmin d3 - bmax d2
+ * k3 = -------------------
+ * d3 - d2
+ *
+ * bmax - bmin
+ * k4 = -------------
+ * d3 - d2
+ *
+ * b = k3 + k4 da
+ */
+ return (BETA_MIN * d3 - BETA_MAX * d2 + (BETA_MAX - BETA_MIN) * da)
+ / (d3 - d2);
+}
+
+/* Update alpha and beta values once per RTT */
+static void update_params(struct sock *sk)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct illinois *ca = inet_csk_ca(sk);
+
+ if (tp->snd_cwnd < win_thresh) {
+ ca->alpha = ALPHA_BASE;
+ ca->beta = BETA_BASE;
+ } else if (ca->cnt_rtt > 0) {
+ u32 dm = max_delay(ca);
+ u32 da = avg_delay(ca);
+
+ ca->alpha = alpha(ca, da, dm);
+ ca->beta = beta(da, dm);
+ }
+
+ rtt_reset(sk);
+}
+
+/*
+ * In case of loss, reset to default values
+ */
+static void tcp_illinois_state(struct sock *sk, u8 new_state)
+{
+ struct illinois *ca = inet_csk_ca(sk);
+
+ if (new_state == TCP_CA_Loss) {
+ ca->alpha = ALPHA_BASE;
+ ca->beta = BETA_BASE;
+ ca->rtt_low = 0;
+ ca->rtt_above = 0;
+ rtt_reset(sk);
+ }
+}
+
+/*
+ * Increase window in response to successful acknowledgment.
+ */
+static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 rtt,
+ u32 in_flight, int flag)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct illinois *ca = inet_csk_ca(sk);
+
+ if (after(ack, ca->end_seq))
+ update_params(sk);
+
+ /* RFC2861 only increase cwnd if fully utilized */
+ if (!tcp_is_cwnd_limited(sk, in_flight))
+ return;
+
+ /* In slow start */
+ if (tp->snd_cwnd <= tp->snd_ssthresh)
+ tcp_slow_start(tp);
+
+ else {
+ u32 delta;
+
+ /* snd_cwnd_cnt is # of packets since last cwnd increment */
+ tp->snd_cwnd_cnt += ca->acked;
+ ca->acked = 1;
+
+ /* This is close approximation of:
+ * tp->snd_cwnd += alpha/tp->snd_cwnd
+ */
+ delta = (tp->snd_cwnd_cnt * ca->alpha) >> ALPHA_SHIFT;
+ if (delta >= tp->snd_cwnd) {
+ tp->snd_cwnd = min(tp->snd_cwnd + delta / tp->snd_cwnd,
+ (u32) tp->snd_cwnd_clamp);
+ tp->snd_cwnd_cnt = 0;
+ }
+ }
+}
+
+static u32 tcp_illinois_ssthresh(struct sock *sk)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct illinois *ca = inet_csk_ca(sk);
+
+ /* Multiplicative decrease */
+ return max((tp->snd_cwnd * ca->beta) >> BETA_SHIFT, 2U);
+}
+
+
+/* Extract info for Tcp socket info provided via netlink. */
+static void tcp_illinois_info(struct sock *sk, u32 ext,
+ struct sk_buff *skb)
+{
+ const struct illinois *ca = inet_csk_ca(sk);
+
+ if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
+ struct tcpvegas_info info = {
+ .tcpv_enabled = 1,
+ .tcpv_rttcnt = ca->cnt_rtt,
+ .tcpv_minrtt = ca->base_rtt,
+ };
+ u64 t = ca->sum_rtt;
+
+ do_div(t, ca->cnt_rtt);
+ info.tcpv_rtt = t;
+
+ nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ }
+}
+
+static struct tcp_congestion_ops tcp_illinois = {
+ .flags = TCP_CONG_RTT_STAMP,
+ .init = tcp_illinois_init,
+ .ssthresh = tcp_illinois_ssthresh,
+ .min_cwnd = tcp_reno_min_cwnd,
+ .cong_avoid = tcp_illinois_cong_avoid,
+ .set_state = tcp_illinois_state,
+ .get_info = tcp_illinois_info,
+ .pkts_acked = tcp_illinois_acked,
+
+ .owner = THIS_MODULE,
+ .name = "illinois",
+};
+
+static int __init tcp_illinois_register(void)
+{
+ BUILD_BUG_ON(sizeof(struct illinois) > ICSK_CA_PRIV_SIZE);
+ return tcp_register_congestion_control(&tcp_illinois);
+}
+
+static void __exit tcp_illinois_unregister(void)
+{
+ tcp_unregister_congestion_control(&tcp_illinois);
+}
+
+module_init(tcp_illinois_register);
+module_exit(tcp_illinois_unregister);
+
+MODULE_AUTHOR("Stephen Hemminger, Shao Liu");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TCP Illinois");
+MODULE_VERSION("1.0");
int sysctl_tcp_rfc1337 __read_mostly;
int sysctl_tcp_max_orphans __read_mostly = NR_FILE;
int sysctl_tcp_frto __read_mostly;
+int sysctl_tcp_frto_response __read_mostly;
int sysctl_tcp_nometrics_save __read_mostly;
int sysctl_tcp_moderate_rcvbuf __read_mostly = 1;
#define FLAG_ECE 0x40 /* ECE in this ACK */
#define FLAG_DATA_LOST 0x80 /* SACK detected data lossage. */
#define FLAG_SLOWPATH 0x100 /* Do not skip RFC checks for window update.*/
+#define FLAG_ONLY_ORIG_SACKED 0x200 /* SACKs only non-rexmit sent before RTO */
#define FLAG_ACKED (FLAG_DATA_ACKED|FLAG_SYN_ACKED)
#define FLAG_NOT_DUP (FLAG_DATA|FLAG_WIN_UPDATE|FLAG_ACKED)
#define IsFack(tp) ((tp)->rx_opt.sack_ok & 2)
#define IsDSack(tp) ((tp)->rx_opt.sack_ok & 4)
+#define IsSackFrto() (sysctl_tcp_frto == 0x2)
+
#define TCP_REMNANT (TCP_FLAG_FIN|TCP_FLAG_URG|TCP_FLAG_SYN|TCP_FLAG_PSH)
/* Adapt the MSS value used to make delayed ack decision to the
*
* "len" is invariant segment length, including TCP header.
*/
- len += skb->data - skb->h.raw;
+ len += skb->data - skb_transport_header(skb);
if (len >= TCP_MIN_RCVMSS + sizeof(struct tcphdr) ||
/* If PSH is not set, packet should be
* full sized, provided peer TCP is not badly broken.
* to handle super-low mtu links fairly.
*/
(len >= TCP_MIN_MSS + sizeof(struct tcphdr) &&
- !(tcp_flag_word(skb->h.th)&TCP_REMNANT))) {
+ !(tcp_flag_word(tcp_hdr(skb)) & TCP_REMNANT))) {
/* Subtract also invariant (if peer is RFC compliant),
* tcp header plus fixed timestamp option length.
* Resulting "len" is MSS free of SACK jitter.
*/
/* Slow part of check#2. */
-static int __tcp_grow_window(const struct sock *sk, struct tcp_sock *tp,
- const struct sk_buff *skb)
+static int __tcp_grow_window(const struct sock *sk, const struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
/* Optimize this! */
int truesize = tcp_win_from_space(skb->truesize)/2;
int window = tcp_win_from_space(sysctl_tcp_rmem[2])/2;
return 0;
}
-static void tcp_grow_window(struct sock *sk, struct tcp_sock *tp,
+static void tcp_grow_window(struct sock *sk,
struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
/* Check #1 */
if (tp->rcv_ssthresh < tp->window_clamp &&
(int)tp->rcv_ssthresh < tcp_space(sk) &&
if (tcp_win_from_space(skb->truesize) <= skb->len)
incr = 2*tp->advmss;
else
- incr = __tcp_grow_window(sk, tp, skb);
+ incr = __tcp_grow_window(sk, skb);
if (incr) {
tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr, tp->window_clamp);
}
/* 5. Recalculate window clamp after socket hit its memory bounds. */
-static void tcp_clamp_window(struct sock *sk, struct tcp_sock *tp)
+static void tcp_clamp_window(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
struct inet_connection_sock *icsk = inet_csk(sk);
icsk->icsk_ack.quick = 0;
* each ACK we send, he increments snd_cwnd and transmits more of his
* queue. -DaveM
*/
-static void tcp_event_data_recv(struct sock *sk, struct tcp_sock *tp, struct sk_buff *skb)
+static void tcp_event_data_recv(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
struct inet_connection_sock *icsk = inet_csk(sk);
u32 now;
TCP_ECN_check_ce(tp, skb);
if (skb->len >= 128)
- tcp_grow_window(sk, tp, skb);
+ tcp_grow_window(sk, skb);
}
/* Called to compute a smoothed rtt estimate. The data fed to this
* does not matter how to _calculate_ it. Seems, it was trap
* that VJ failed to avoid. 8)
*/
- if(m == 0)
+ if (m == 0)
m = 1;
if (tp->srtt != 0) {
m -= (tp->srtt >> 3); /* m is now error in rtt est */
}
/* Set slow start threshold and cwnd not falling to slow start */
-void tcp_enter_cwr(struct sock *sk)
+void tcp_enter_cwr(struct sock *sk, const int set_ssthresh)
{
struct tcp_sock *tp = tcp_sk(sk);
+ const struct inet_connection_sock *icsk = inet_csk(sk);
tp->prior_ssthresh = 0;
tp->bytes_acked = 0;
- if (inet_csk(sk)->icsk_ca_state < TCP_CA_CWR) {
+ if (icsk->icsk_ca_state < TCP_CA_CWR) {
tp->undo_marker = 0;
- tp->snd_ssthresh = inet_csk(sk)->icsk_ca_ops->ssthresh(sk);
+ if (set_ssthresh)
+ tp->snd_ssthresh = icsk->icsk_ca_ops->ssthresh(sk);
tp->snd_cwnd = min(tp->snd_cwnd,
tcp_packets_in_flight(tp) + 1U);
tp->snd_cwnd_cnt = 0;
{
const struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_sock *tp = tcp_sk(sk);
- unsigned char *ptr = ack_skb->h.raw + TCP_SKB_CB(ack_skb)->sacked;
+ unsigned char *ptr = (skb_transport_header(ack_skb) +
+ TCP_SKB_CB(ack_skb)->sacked);
struct tcp_sack_block_wire *sp = (struct tcp_sack_block_wire *)(ptr+2);
struct sk_buff *cached_skb;
int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE)>>3;
cached_skb = tp->fastpath_skb_hint;
cached_fack_count = tp->fastpath_cnt_hint;
if (!cached_skb) {
- cached_skb = sk->sk_write_queue.next;
+ cached_skb = tcp_write_queue_head(sk);
cached_fack_count = 0;
}
if (after(end_seq, tp->high_seq))
flag |= FLAG_DATA_LOST;
- sk_stream_for_retrans_queue_from(skb, sk) {
+ tcp_for_write_queue_from(skb, sk) {
int in_sack, pcount;
u8 sacked;
+ if (skb == tcp_send_head(sk))
+ break;
+
cached_skb = skb;
cached_fack_count = fack_count;
if (i == first_sack_index) {
/* clear lost hint */
tp->retransmit_skb_hint = NULL;
}
+ /* SACK enhanced F-RTO detection.
+ * Set flag if and only if non-rexmitted
+ * segments below frto_highmark are
+ * SACKed (RFC4138; Appendix B).
+ * Clearing correct due to in-order walk
+ */
+ if (after(end_seq, tp->frto_highmark)) {
+ flag &= ~FLAG_ONLY_ORIG_SACKED;
+ } else {
+ if (!(sacked & TCPCB_RETRANS))
+ flag |= FLAG_ONLY_ORIG_SACKED;
+ }
}
TCP_SKB_CB(skb)->sacked |= TCPCB_SACKED_ACKED;
if (lost_retrans && icsk->icsk_ca_state == TCP_CA_Recovery) {
struct sk_buff *skb;
- sk_stream_for_retrans_queue(skb, sk) {
+ tcp_for_write_queue(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
if (after(TCP_SKB_CB(skb)->seq, lost_retrans))
break;
if (!after(TCP_SKB_CB(skb)->end_seq, tp->snd_una))
tp->left_out = tp->sacked_out + tp->lost_out;
- if ((reord < tp->fackets_out) && icsk->icsk_ca_state != TCP_CA_Loss)
+ if ((reord < tp->fackets_out) && icsk->icsk_ca_state != TCP_CA_Loss &&
+ (!tp->frto_highmark || after(tp->snd_una, tp->frto_highmark)))
tcp_update_reordering(sk, ((tp->fackets_out + 1) - reord), 0);
#if FASTRETRANS_DEBUG > 0
return flag;
}
-/* RTO occurred, but do not yet enter loss state. Instead, transmit two new
- * segments to see from the next ACKs whether any data was really missing.
- * If the RTO was spurious, new ACKs should arrive.
+/* F-RTO can only be used if these conditions are satisfied:
+ * - there must be some unsent new data
+ * - the advertised window should allow sending it
+ * - TCP has never retransmitted anything other than head (SACK enhanced
+ * variant from Appendix B of RFC4138 is more robust here)
+ */
+int tcp_use_frto(struct sock *sk)
+{
+ const struct tcp_sock *tp = tcp_sk(sk);
+ struct sk_buff *skb;
+
+ if (!sysctl_tcp_frto || !tcp_send_head(sk) ||
+ after(TCP_SKB_CB(tcp_send_head(sk))->end_seq,
+ tp->snd_una + tp->snd_wnd))
+ return 0;
+
+ if (IsSackFrto())
+ return 1;
+
+ /* Avoid expensive walking of rexmit queue if possible */
+ if (tp->retrans_out > 1)
+ return 0;
+
+ skb = tcp_write_queue_head(sk);
+ skb = tcp_write_queue_next(sk, skb); /* Skips head */
+ tcp_for_write_queue_from(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
+ if (TCP_SKB_CB(skb)->sacked&TCPCB_RETRANS)
+ return 0;
+ /* Short-circuit when first non-SACKed skb has been checked */
+ if (!(TCP_SKB_CB(skb)->sacked&TCPCB_SACKED_ACKED))
+ break;
+ }
+ return 1;
+}
+
+/* RTO occurred, but do not yet enter Loss state. Instead, defer RTO
+ * recovery a bit and use heuristics in tcp_process_frto() to detect if
+ * the RTO was spurious. Only clear SACKED_RETRANS of the head here to
+ * keep retrans_out counting accurate (with SACK F-RTO, other than head
+ * may still have that bit set); TCPCB_LOST and remaining SACKED_RETRANS
+ * bits are handled if the Loss state is really to be entered (in
+ * tcp_enter_frto_loss).
+ *
+ * Do like tcp_enter_loss() would; when RTO expires the second time it
+ * does:
+ * "Reduce ssthresh if it has not yet been made inside this window."
*/
void tcp_enter_frto(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
- tp->frto_counter = 1;
-
- if (icsk->icsk_ca_state <= TCP_CA_Disorder ||
+ if ((!tp->frto_counter && icsk->icsk_ca_state <= TCP_CA_Disorder) ||
tp->snd_una == tp->high_seq ||
- (icsk->icsk_ca_state == TCP_CA_Loss && !icsk->icsk_retransmits)) {
+ ((icsk->icsk_ca_state == TCP_CA_Loss || tp->frto_counter) &&
+ !icsk->icsk_retransmits)) {
tp->prior_ssthresh = tcp_current_ssthresh(sk);
- tp->snd_ssthresh = icsk->icsk_ca_ops->ssthresh(sk);
+ /* Our state is too optimistic in ssthresh() call because cwnd
+ * is not reduced until tcp_enter_frto_loss() when previous FRTO
+ * recovery has not yet completed. Pattern would be this: RTO,
+ * Cumulative ACK, RTO (2xRTO for the same segment does not end
+ * up here twice).
+ * RFC4138 should be more specific on what to do, even though
+ * RTO is quite unlikely to occur after the first Cumulative ACK
+ * due to back-off and complexity of triggering events ...
+ */
+ if (tp->frto_counter) {
+ u32 stored_cwnd;
+ stored_cwnd = tp->snd_cwnd;
+ tp->snd_cwnd = 2;
+ tp->snd_ssthresh = icsk->icsk_ca_ops->ssthresh(sk);
+ tp->snd_cwnd = stored_cwnd;
+ } else {
+ tp->snd_ssthresh = icsk->icsk_ca_ops->ssthresh(sk);
+ }
+ /* ... in theory, cong.control module could do "any tricks" in
+ * ssthresh(), which means that ca_state, lost bits and lost_out
+ * counter would have to be faked before the call occurs. We
+ * consider that too expensive, unlikely and hacky, so modules
+ * using these in ssthresh() must deal these incompatibility
+ * issues if they receives CA_EVENT_FRTO and frto_counter != 0
+ */
tcp_ca_event(sk, CA_EVENT_FRTO);
}
- /* Have to clear retransmission markers here to keep the bookkeeping
- * in shape, even though we are not yet in Loss state.
- * If something was really lost, it is eventually caught up
- * in tcp_enter_frto_loss.
- */
- tp->retrans_out = 0;
tp->undo_marker = tp->snd_una;
tp->undo_retrans = 0;
- sk_stream_for_retrans_queue(skb, sk) {
- TCP_SKB_CB(skb)->sacked &= ~TCPCB_RETRANS;
+ skb = tcp_write_queue_head(sk);
+ if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS) {
+ TCP_SKB_CB(skb)->sacked &= ~TCPCB_SACKED_RETRANS;
+ tp->retrans_out -= tcp_skb_pcount(skb);
}
tcp_sync_left_out(tp);
- tcp_set_ca_state(sk, TCP_CA_Open);
- tp->frto_highmark = tp->snd_nxt;
+ /* Earlier loss recovery underway (see RFC4138; Appendix B).
+ * The last condition is necessary at least in tp->frto_counter case.
+ */
+ if (IsSackFrto() && (tp->frto_counter ||
+ ((1 << icsk->icsk_ca_state) & (TCPF_CA_Recovery|TCPF_CA_Loss))) &&
+ after(tp->high_seq, tp->snd_una)) {
+ tp->frto_highmark = tp->high_seq;
+ } else {
+ tp->frto_highmark = tp->snd_nxt;
+ }
+ tcp_set_ca_state(sk, TCP_CA_Disorder);
+ tp->high_seq = tp->snd_nxt;
+ tp->frto_counter = 1;
}
/* Enter Loss state after F-RTO was applied. Dupack arrived after RTO,
* which indicates that we should follow the traditional RTO recovery,
* i.e. mark everything lost and do go-back-N retransmission.
*/
-static void tcp_enter_frto_loss(struct sock *sk)
+static void tcp_enter_frto_loss(struct sock *sk, int allowed_segments, int flag)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
tp->sacked_out = 0;
tp->lost_out = 0;
tp->fackets_out = 0;
+ tp->retrans_out = 0;
- sk_stream_for_retrans_queue(skb, sk) {
+ tcp_for_write_queue(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
cnt += tcp_skb_pcount(skb);
- TCP_SKB_CB(skb)->sacked &= ~TCPCB_LOST;
+ /*
+ * Count the retransmission made on RTO correctly (only when
+ * waiting for the first ACK and did not get it)...
+ */
+ if ((tp->frto_counter == 1) && !(flag&FLAG_DATA_ACKED)) {
+ tp->retrans_out += tcp_skb_pcount(skb);
+ /* ...enter this if branch just for the first segment */
+ flag |= FLAG_DATA_ACKED;
+ } else {
+ TCP_SKB_CB(skb)->sacked &= ~(TCPCB_LOST|TCPCB_SACKED_RETRANS);
+ }
if (!(TCP_SKB_CB(skb)->sacked&TCPCB_SACKED_ACKED)) {
/* Do not mark those segments lost that were
}
tcp_sync_left_out(tp);
- tp->snd_cwnd = tp->frto_counter + tcp_packets_in_flight(tp)+1;
+ tp->snd_cwnd = tcp_packets_in_flight(tp) + allowed_segments;
tp->snd_cwnd_cnt = 0;
tp->snd_cwnd_stamp = tcp_time_stamp;
tp->undo_marker = 0;
if (!how)
tp->undo_marker = tp->snd_una;
- sk_stream_for_retrans_queue(skb, sk) {
+ tcp_for_write_queue(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
cnt += tcp_skb_pcount(skb);
if (TCP_SKB_CB(skb)->sacked&TCPCB_RETRANS)
tp->undo_marker = 0;
* receiver _host_ is heavily congested (or buggy).
* Do processing similar to RTO timeout.
*/
- if ((skb = skb_peek(&sk->sk_write_queue)) != NULL &&
+ if ((skb = tcp_write_queue_head(sk)) != NULL &&
(TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED)) {
struct inet_connection_sock *icsk = inet_csk(sk);
NET_INC_STATS_BH(LINUX_MIB_TCPSACKRENEGING);
tcp_enter_loss(sk, 1);
icsk->icsk_retransmits++;
- tcp_retransmit_skb(sk, skb_peek(&sk->sk_write_queue));
+ tcp_retransmit_skb(sk, tcp_write_queue_head(sk));
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
icsk->icsk_rto, TCP_RTO_MAX);
return 1;
return (tcp_time_stamp - TCP_SKB_CB(skb)->when > inet_csk(sk)->icsk_rto);
}
-static inline int tcp_head_timedout(struct sock *sk, struct tcp_sock *tp)
+static inline int tcp_head_timedout(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
return tp->packets_out &&
- tcp_skb_timedout(sk, skb_peek(&sk->sk_write_queue));
+ tcp_skb_timedout(sk, tcp_write_queue_head(sk));
}
/* Linux NewReno/SACK/FACK/ECN state machine.
* Main question: may we further continue forward transmission
* with the same cwnd?
*/
-static int tcp_time_to_recover(struct sock *sk, struct tcp_sock *tp)
+static int tcp_time_to_recover(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
__u32 packets_out;
+ /* Do not perform any recovery during FRTO algorithm */
+ if (tp->frto_counter)
+ return 0;
+
/* Trick#1: The loss is proven. */
if (tp->lost_out)
return 1;
/* Trick#3 : when we use RFC2988 timer restart, fast
* retransmit can be triggered by timeout of queue head.
*/
- if (tcp_head_timedout(sk, tp))
+ if (tcp_head_timedout(sk))
return 1;
/* Trick#4: It is still not OK... But will it be useful to delay
packets_out = tp->packets_out;
if (packets_out <= tp->reordering &&
tp->sacked_out >= max_t(__u32, packets_out/2, sysctl_tcp_reordering) &&
- !tcp_may_send_now(sk, tp)) {
+ !tcp_may_send_now(sk)) {
/* We have nothing to send. This connection is limited
* either by receiver window or by application.
*/
/* Account for ACK, ACKing some data in Reno Recovery phase. */
-static void tcp_remove_reno_sacks(struct sock *sk, struct tcp_sock *tp, int acked)
+static void tcp_remove_reno_sacks(struct sock *sk, int acked)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (acked > 0) {
/* One ACK acked hole. The rest eat duplicate ACKs. */
if (acked-1 >= tp->sacked_out)
}
/* Mark head of queue up as lost. */
-static void tcp_mark_head_lost(struct sock *sk, struct tcp_sock *tp,
+static void tcp_mark_head_lost(struct sock *sk,
int packets, u32 high_seq)
{
+ struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
int cnt;
skb = tp->lost_skb_hint;
cnt = tp->lost_cnt_hint;
} else {
- skb = sk->sk_write_queue.next;
+ skb = tcp_write_queue_head(sk);
cnt = 0;
}
- sk_stream_for_retrans_queue_from(skb, sk) {
+ tcp_for_write_queue_from(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
/* TODO: do this better */
/* this is not the most efficient way to do this... */
tp->lost_skb_hint = skb;
/* clear xmit_retransmit_queue hints
* if this is beyond hint */
- if(tp->retransmit_skb_hint != NULL &&
- before(TCP_SKB_CB(skb)->seq,
- TCP_SKB_CB(tp->retransmit_skb_hint)->seq)) {
-
+ if (tp->retransmit_skb_hint != NULL &&
+ before(TCP_SKB_CB(skb)->seq,
+ TCP_SKB_CB(tp->retransmit_skb_hint)->seq))
tp->retransmit_skb_hint = NULL;
- }
+
}
}
tcp_sync_left_out(tp);
/* Account newly detected lost packet(s) */
-static void tcp_update_scoreboard(struct sock *sk, struct tcp_sock *tp)
+static void tcp_update_scoreboard(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (IsFack(tp)) {
int lost = tp->fackets_out - tp->reordering;
if (lost <= 0)
lost = 1;
- tcp_mark_head_lost(sk, tp, lost, tp->high_seq);
+ tcp_mark_head_lost(sk, lost, tp->high_seq);
} else {
- tcp_mark_head_lost(sk, tp, 1, tp->high_seq);
+ tcp_mark_head_lost(sk, 1, tp->high_seq);
}
/* New heuristics: it is possible only after we switched
* Hence, we can detect timed out packets during fast
* retransmit without falling to slow start.
*/
- if (!IsReno(tp) && tcp_head_timedout(sk, tp)) {
+ if (!IsReno(tp) && tcp_head_timedout(sk)) {
struct sk_buff *skb;
skb = tp->scoreboard_skb_hint ? tp->scoreboard_skb_hint
- : sk->sk_write_queue.next;
+ : tcp_write_queue_head(sk);
- sk_stream_for_retrans_queue_from(skb, sk) {
+ tcp_for_write_queue_from(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
if (!tcp_skb_timedout(sk, skb))
break;
/* Undo procedures. */
#if FASTRETRANS_DEBUG > 1
-static void DBGUNDO(struct sock *sk, struct tcp_sock *tp, const char *msg)
+static void DBGUNDO(struct sock *sk, const char *msg)
{
+ struct tcp_sock *tp = tcp_sk(sk);
struct inet_sock *inet = inet_sk(sk);
+
printk(KERN_DEBUG "Undo %s %u.%u.%u.%u/%u c%u l%u ss%u/%u p%u\n",
msg,
NIPQUAD(inet->daddr), ntohs(inet->dport),
}
/* People celebrate: "We love our President!" */
-static int tcp_try_undo_recovery(struct sock *sk, struct tcp_sock *tp)
+static int tcp_try_undo_recovery(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (tcp_may_undo(tp)) {
/* Happy end! We did not retransmit anything
* or our original transmission succeeded.
*/
- DBGUNDO(sk, tp, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans");
+ DBGUNDO(sk, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans");
tcp_undo_cwr(sk, 1);
if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss)
NET_INC_STATS_BH(LINUX_MIB_TCPLOSSUNDO);
}
/* Try to undo cwnd reduction, because D-SACKs acked all retransmitted data */
-static void tcp_try_undo_dsack(struct sock *sk, struct tcp_sock *tp)
+static void tcp_try_undo_dsack(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (tp->undo_marker && !tp->undo_retrans) {
- DBGUNDO(sk, tp, "D-SACK");
+ DBGUNDO(sk, "D-SACK");
tcp_undo_cwr(sk, 1);
tp->undo_marker = 0;
NET_INC_STATS_BH(LINUX_MIB_TCPDSACKUNDO);
/* Undo during fast recovery after partial ACK. */
-static int tcp_try_undo_partial(struct sock *sk, struct tcp_sock *tp,
- int acked)
+static int tcp_try_undo_partial(struct sock *sk, int acked)
{
+ struct tcp_sock *tp = tcp_sk(sk);
/* Partial ACK arrived. Force Hoe's retransmit. */
int failed = IsReno(tp) || tp->fackets_out>tp->reordering;
tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1);
- DBGUNDO(sk, tp, "Hoe");
+ DBGUNDO(sk, "Hoe");
tcp_undo_cwr(sk, 0);
NET_INC_STATS_BH(LINUX_MIB_TCPPARTIALUNDO);
}
/* Undo during loss recovery after partial ACK. */
-static int tcp_try_undo_loss(struct sock *sk, struct tcp_sock *tp)
+static int tcp_try_undo_loss(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (tcp_may_undo(tp)) {
struct sk_buff *skb;
- sk_stream_for_retrans_queue(skb, sk) {
+ tcp_for_write_queue(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
TCP_SKB_CB(skb)->sacked &= ~TCPCB_LOST;
}
clear_all_retrans_hints(tp);
- DBGUNDO(sk, tp, "partial loss");
+ DBGUNDO(sk, "partial loss");
tp->lost_out = 0;
tp->left_out = tp->sacked_out;
tcp_undo_cwr(sk, 1);
tcp_ca_event(sk, CA_EVENT_COMPLETE_CWR);
}
-static void tcp_try_to_open(struct sock *sk, struct tcp_sock *tp, int flag)
+static void tcp_try_to_open(struct sock *sk, int flag)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
tp->left_out = tp->sacked_out;
if (tp->retrans_out == 0)
tp->retrans_stamp = 0;
if (flag&FLAG_ECE)
- tcp_enter_cwr(sk);
+ tcp_enter_cwr(sk, 1);
if (inet_csk(sk)->icsk_ca_state != TCP_CA_CWR) {
int state = TCP_CA_Open;
before(tp->snd_una, tp->high_seq) &&
icsk->icsk_ca_state != TCP_CA_Open &&
tp->fackets_out > tp->reordering) {
- tcp_mark_head_lost(sk, tp, tp->fackets_out-tp->reordering, tp->high_seq);
+ tcp_mark_head_lost(sk, tp->fackets_out-tp->reordering, tp->high_seq);
NET_INC_STATS_BH(LINUX_MIB_TCPLOSS);
}
/* E. Check state exit conditions. State can be terminated
* when high_seq is ACKed. */
if (icsk->icsk_ca_state == TCP_CA_Open) {
- if (!sysctl_tcp_frto)
- BUG_TRAP(tp->retrans_out == 0);
+ BUG_TRAP(tp->retrans_out == 0);
tp->retrans_stamp = 0;
} else if (!before(tp->snd_una, tp->high_seq)) {
switch (icsk->icsk_ca_state) {
case TCP_CA_Loss:
icsk->icsk_retransmits = 0;
- if (tcp_try_undo_recovery(sk, tp))
+ if (tcp_try_undo_recovery(sk))
return;
break;
break;
case TCP_CA_Disorder:
- tcp_try_undo_dsack(sk, tp);
+ tcp_try_undo_dsack(sk);
if (!tp->undo_marker ||
/* For SACK case do not Open to allow to undo
* catching for all duplicate ACKs. */
case TCP_CA_Recovery:
if (IsReno(tp))
tcp_reset_reno_sack(tp);
- if (tcp_try_undo_recovery(sk, tp))
+ if (tcp_try_undo_recovery(sk))
return;
tcp_complete_cwr(sk);
break;
} else {
int acked = prior_packets - tp->packets_out;
if (IsReno(tp))
- tcp_remove_reno_sacks(sk, tp, acked);
- is_dupack = tcp_try_undo_partial(sk, tp, acked);
+ tcp_remove_reno_sacks(sk, acked);
+ is_dupack = tcp_try_undo_partial(sk, acked);
}
break;
case TCP_CA_Loss:
if (flag&FLAG_DATA_ACKED)
icsk->icsk_retransmits = 0;
- if (!tcp_try_undo_loss(sk, tp)) {
+ if (!tcp_try_undo_loss(sk)) {
tcp_moderate_cwnd(tp);
tcp_xmit_retransmit_queue(sk);
return;
}
if (icsk->icsk_ca_state == TCP_CA_Disorder)
- tcp_try_undo_dsack(sk, tp);
+ tcp_try_undo_dsack(sk);
- if (!tcp_time_to_recover(sk, tp)) {
- tcp_try_to_open(sk, tp, flag);
+ if (!tcp_time_to_recover(sk)) {
+ tcp_try_to_open(sk, flag);
return;
}
tcp_set_ca_state(sk, TCP_CA_Recovery);
}
- if (is_dupack || tcp_head_timedout(sk, tp))
- tcp_update_scoreboard(sk, tp);
+ if (is_dupack || tcp_head_timedout(sk))
+ tcp_update_scoreboard(sk);
tcp_cwnd_down(sk);
tcp_xmit_retransmit_queue(sk);
}
* RFC2988 recommends to restart timer to now+rto.
*/
-static void tcp_ack_packets_out(struct sock *sk, struct tcp_sock *tp)
+static void tcp_ack_packets_out(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (!tp->packets_out) {
inet_csk_clear_xmit_timer(sk, ICSK_TIME_RETRANS);
} else {
return acked;
}
-static u32 tcp_usrtt(struct timeval *tv)
-{
- struct timeval now;
-
- do_gettimeofday(&now);
- return (now.tv_sec - tv->tv_sec) * 1000000 + (now.tv_usec - tv->tv_usec);
-}
-
/* Remove acknowledged frames from the retransmission queue. */
static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
{
int acked = 0;
__s32 seq_rtt = -1;
u32 pkts_acked = 0;
- void (*rtt_sample)(struct sock *sk, u32 usrtt)
- = icsk->icsk_ca_ops->rtt_sample;
- struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
+ ktime_t last_ackt = ktime_set(0,0);
- while ((skb = skb_peek(&sk->sk_write_queue)) &&
- skb != sk->sk_send_head) {
+ while ((skb = tcp_write_queue_head(sk)) &&
+ skb != tcp_send_head(sk)) {
struct tcp_skb_cb *scb = TCP_SKB_CB(skb);
__u8 sacked = scb->sacked;
if (sacked) {
if (sacked & TCPCB_RETRANS) {
- if(sacked & TCPCB_SACKED_RETRANS)
+ if (sacked & TCPCB_SACKED_RETRANS)
tp->retrans_out -= tcp_skb_pcount(skb);
acked |= FLAG_RETRANS_DATA_ACKED;
seq_rtt = -1;
} else if (seq_rtt < 0) {
seq_rtt = now - scb->when;
- skb_get_timestamp(skb, &tv);
+ last_ackt = skb->tstamp;
}
if (sacked & TCPCB_SACKED_ACKED)
tp->sacked_out -= tcp_skb_pcount(skb);
}
} else if (seq_rtt < 0) {
seq_rtt = now - scb->when;
- skb_get_timestamp(skb, &tv);
+ last_ackt = skb->tstamp;
}
tcp_dec_pcount_approx(&tp->fackets_out, skb);
tcp_packets_out_dec(tp, skb);
- __skb_unlink(skb, &sk->sk_write_queue);
+ tcp_unlink_write_queue(skb, sk);
sk_stream_free_skb(sk, skb);
clear_all_retrans_hints(tp);
}
if (acked&FLAG_ACKED) {
+ const struct tcp_congestion_ops *ca_ops
+ = inet_csk(sk)->icsk_ca_ops;
+
tcp_ack_update_rtt(sk, acked, seq_rtt);
- tcp_ack_packets_out(sk, tp);
- if (rtt_sample && !(acked & FLAG_RETRANS_DATA_ACKED))
- (*rtt_sample)(sk, tcp_usrtt(&tv));
+ tcp_ack_packets_out(sk);
- if (icsk->icsk_ca_ops->pkts_acked)
- icsk->icsk_ca_ops->pkts_acked(sk, pkts_acked);
+ if (ca_ops->pkts_acked)
+ ca_ops->pkts_acked(sk, pkts_acked, last_ackt);
}
#if FASTRETRANS_DEBUG > 0
/* Was it a usable window open? */
- if (!after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
+ if (!after(TCP_SKB_CB(tcp_send_head(sk))->end_seq,
tp->snd_una + tp->snd_wnd)) {
icsk->icsk_backoff = 0;
inet_csk_clear_xmit_timer(sk, ICSK_TIME_PROBE0);
* Window update algorithm, described in RFC793/RFC1122 (used in linux-2.2
* and in FreeBSD. NetBSD's one is even worse.) is wrong.
*/
-static int tcp_ack_update_window(struct sock *sk, struct tcp_sock *tp,
- struct sk_buff *skb, u32 ack, u32 ack_seq)
+static int tcp_ack_update_window(struct sock *sk, struct sk_buff *skb, u32 ack,
+ u32 ack_seq)
{
+ struct tcp_sock *tp = tcp_sk(sk);
int flag = 0;
- u32 nwin = ntohs(skb->h.th->window);
+ u32 nwin = ntohs(tcp_hdr(skb)->window);
- if (likely(!skb->h.th->syn))
+ if (likely(!tcp_hdr(skb)->syn))
nwin <<= tp->rx_opt.snd_wscale;
if (tcp_may_update_window(tp, ack, ack_seq, nwin)) {
* fast path is recovered for sending TCP.
*/
tp->pred_flags = 0;
- tcp_fast_path_check(sk, tp);
+ tcp_fast_path_check(sk);
if (nwin > tp->max_window) {
tp->max_window = nwin;
return flag;
}
-static void tcp_process_frto(struct sock *sk, u32 prior_snd_una)
+/* A very conservative spurious RTO response algorithm: reduce cwnd and
+ * continue in congestion avoidance.
+ */
+static void tcp_conservative_spur_to_response(struct tcp_sock *tp)
+{
+ tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
+ tp->snd_cwnd_cnt = 0;
+ tcp_moderate_cwnd(tp);
+}
+
+/* A conservative spurious RTO response algorithm: reduce cwnd using
+ * rate halving and continue in congestion avoidance.
+ */
+static void tcp_ratehalving_spur_to_response(struct sock *sk)
+{
+ tcp_enter_cwr(sk, 0);
+}
+
+static void tcp_undo_spur_to_response(struct sock *sk, int flag)
+{
+ if (flag&FLAG_ECE)
+ tcp_ratehalving_spur_to_response(sk);
+ else
+ tcp_undo_cwr(sk, 1);
+}
+
+/* F-RTO spurious RTO detection algorithm (RFC4138)
+ *
+ * F-RTO affects during two new ACKs following RTO (well, almost, see inline
+ * comments). State (ACK number) is kept in frto_counter. When ACK advances
+ * window (but not to or beyond highest sequence sent before RTO):
+ * On First ACK, send two new segments out.
+ * On Second ACK, RTO was likely spurious. Do spurious response (response
+ * algorithm is not part of the F-RTO detection algorithm
+ * given in RFC4138 but can be selected separately).
+ * Otherwise (basically on duplicate ACK), RTO was (likely) caused by a loss
+ * and TCP falls back to conventional RTO recovery.
+ *
+ * Rationale: if the RTO was spurious, new ACKs should arrive from the
+ * original window even after we transmit two new data segments.
+ *
+ * SACK version:
+ * on first step, wait until first cumulative ACK arrives, then move to
+ * the second step. In second step, the next ACK decides.
+ *
+ * F-RTO is implemented (mainly) in four functions:
+ * - tcp_use_frto() is used to determine if TCP is can use F-RTO
+ * - tcp_enter_frto() prepares TCP state on RTO if F-RTO is used, it is
+ * called when tcp_use_frto() showed green light
+ * - tcp_process_frto() handles incoming ACKs during F-RTO algorithm
+ * - tcp_enter_frto_loss() is called if there is not enough evidence
+ * to prove that the RTO is indeed spurious. It transfers the control
+ * from F-RTO to the conventional RTO recovery
+ */
+static int tcp_process_frto(struct sock *sk, u32 prior_snd_una, int flag)
{
struct tcp_sock *tp = tcp_sk(sk);
tcp_sync_left_out(tp);
- if (tp->snd_una == prior_snd_una ||
- !before(tp->snd_una, tp->frto_highmark)) {
- /* RTO was caused by loss, start retransmitting in
- * go-back-N slow start
- */
- tcp_enter_frto_loss(sk);
- return;
+ /* Duplicate the behavior from Loss state (fastretrans_alert) */
+ if (flag&FLAG_DATA_ACKED)
+ inet_csk(sk)->icsk_retransmits = 0;
+
+ if (!before(tp->snd_una, tp->frto_highmark)) {
+ tcp_enter_frto_loss(sk, tp->frto_counter + 1, flag);
+ return 1;
}
- if (tp->frto_counter == 1) {
- /* First ACK after RTO advances the window: allow two new
- * segments out.
+ if (!IsSackFrto() || IsReno(tp)) {
+ /* RFC4138 shortcoming in step 2; should also have case c):
+ * ACK isn't duplicate nor advances window, e.g., opposite dir
+ * data, winupdate
*/
- tp->snd_cwnd = tcp_packets_in_flight(tp) + 2;
+ if ((tp->snd_una == prior_snd_una) && (flag&FLAG_NOT_DUP) &&
+ !(flag&FLAG_FORWARD_PROGRESS))
+ return 1;
+
+ if (!(flag&FLAG_DATA_ACKED)) {
+ tcp_enter_frto_loss(sk, (tp->frto_counter == 1 ? 0 : 3),
+ flag);
+ return 1;
+ }
} else {
- /* Also the second ACK after RTO advances the window.
- * The RTO was likely spurious. Reduce cwnd and continue
- * in congestion avoidance
- */
- tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
- tcp_moderate_cwnd(tp);
+ if (!(flag&FLAG_DATA_ACKED) && (tp->frto_counter == 1)) {
+ /* Prevent sending of new data. */
+ tp->snd_cwnd = min(tp->snd_cwnd,
+ tcp_packets_in_flight(tp));
+ return 1;
+ }
+
+ if ((tp->frto_counter == 2) &&
+ (!(flag&FLAG_FORWARD_PROGRESS) ||
+ ((flag&FLAG_DATA_SACKED) && !(flag&FLAG_ONLY_ORIG_SACKED)))) {
+ /* RFC4138 shortcoming (see comment above) */
+ if (!(flag&FLAG_FORWARD_PROGRESS) && (flag&FLAG_NOT_DUP))
+ return 1;
+
+ tcp_enter_frto_loss(sk, 3, flag);
+ return 1;
+ }
}
- /* F-RTO affects on two new ACKs following RTO.
- * At latest on third ACK the TCP behavior is back to normal.
- */
- tp->frto_counter = (tp->frto_counter + 1) % 3;
+ if (tp->frto_counter == 1) {
+ tp->snd_cwnd = tcp_packets_in_flight(tp) + 2;
+ tp->frto_counter = 2;
+ return 1;
+ } else /* frto_counter == 2 */ {
+ switch (sysctl_tcp_frto_response) {
+ case 2:
+ tcp_undo_spur_to_response(sk, flag);
+ break;
+ case 1:
+ tcp_conservative_spur_to_response(tp);
+ break;
+ default:
+ tcp_ratehalving_spur_to_response(sk);
+ break;
+ }
+ tp->frto_counter = 0;
+ }
+ return 0;
}
/* This routine deals with incoming acks, but not outgoing ones. */
u32 prior_in_flight;
s32 seq_rtt;
int prior_packets;
+ int frto_cwnd = 0;
/* If the ack is newer than sent or older than previous acks
* then we can probably ignore it.
else
NET_INC_STATS_BH(LINUX_MIB_TCPPUREACKS);
- flag |= tcp_ack_update_window(sk, tp, skb, ack, ack_seq);
+ flag |= tcp_ack_update_window(sk, skb, ack, ack_seq);
if (TCP_SKB_CB(skb)->sacked)
flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una);
- if (TCP_ECN_rcv_ecn_echo(tp, skb->h.th))
+ if (TCP_ECN_rcv_ecn_echo(tp, tcp_hdr(skb)))
flag |= FLAG_ECE;
tcp_ca_event(sk, CA_EVENT_SLOW_ACK);
flag |= tcp_clean_rtx_queue(sk, &seq_rtt);
if (tp->frto_counter)
- tcp_process_frto(sk, prior_snd_una);
+ frto_cwnd = tcp_process_frto(sk, prior_snd_una, flag);
if (tcp_ack_is_dubious(sk, flag)) {
/* Advance CWND, if state allows this. */
- if ((flag & FLAG_DATA_ACKED) && tcp_may_raise_cwnd(sk, flag))
+ if ((flag & FLAG_DATA_ACKED) && !frto_cwnd &&
+ tcp_may_raise_cwnd(sk, flag))
tcp_cong_avoid(sk, ack, seq_rtt, prior_in_flight, 0);
tcp_fastretrans_alert(sk, prior_snd_una, prior_packets, flag);
} else {
- if ((flag & FLAG_DATA_ACKED))
+ if ((flag & FLAG_DATA_ACKED) && !frto_cwnd)
tcp_cong_avoid(sk, ack, seq_rtt, prior_in_flight, 1);
}
* being used to time the probes, and is probably far higher than
* it needs to be for normal retransmission.
*/
- if (sk->sk_send_head)
+ if (tcp_send_head(sk))
tcp_ack_probe(sk);
return 1;
void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx, int estab)
{
unsigned char *ptr;
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
int length=(th->doff*4)-sizeof(struct tcphdr);
ptr = (unsigned char *)(th + 1);
opt_rx->saw_tstamp = 0;
- while(length>0) {
+ while (length > 0) {
int opcode=*ptr++;
int opsize;
return;
if (opsize > length)
return; /* don't parse partial options */
- switch(opcode) {
+ switch (opcode) {
case TCPOPT_MSS:
- if(opsize==TCPOLEN_MSS && th->syn && !estab) {
+ if (opsize==TCPOLEN_MSS && th->syn && !estab) {
u16 in_mss = ntohs(get_unaligned((__be16 *)ptr));
if (in_mss) {
if (opt_rx->user_mss && opt_rx->user_mss < in_mss)
}
break;
case TCPOPT_WINDOW:
- if(opsize==TCPOLEN_WINDOW && th->syn && !estab)
+ if (opsize==TCPOLEN_WINDOW && th->syn && !estab)
if (sysctl_tcp_window_scaling) {
__u8 snd_wscale = *(__u8 *) ptr;
opt_rx->wscale_ok = 1;
if (snd_wscale > 14) {
- if(net_ratelimit())
+ if (net_ratelimit())
printk(KERN_INFO "tcp_parse_options: Illegal window "
"scaling value %d >14 received.\n",
snd_wscale);
}
break;
case TCPOPT_TIMESTAMP:
- if(opsize==TCPOLEN_TIMESTAMP) {
+ if (opsize==TCPOLEN_TIMESTAMP) {
if ((estab && opt_rx->tstamp_ok) ||
(!estab && sysctl_tcp_timestamps)) {
opt_rx->saw_tstamp = 1;
}
break;
case TCPOPT_SACK_PERM:
- if(opsize==TCPOLEN_SACK_PERM && th->syn && !estab) {
+ if (opsize==TCPOLEN_SACK_PERM && th->syn && !estab) {
if (sysctl_tcp_sack) {
opt_rx->sack_ok = 1;
tcp_sack_reset(opt_rx);
break;
case TCPOPT_SACK:
- if((opsize >= (TCPOLEN_SACK_BASE + TCPOLEN_SACK_PERBLOCK)) &&
+ if ((opsize >= (TCPOLEN_SACK_BASE + TCPOLEN_SACK_PERBLOCK)) &&
!((opsize - TCPOLEN_SACK_BASE) % TCPOLEN_SACK_PERBLOCK) &&
opt_rx->sack_ok) {
TCP_SKB_CB(skb)->sacked = (ptr - 2) - (unsigned char *)th;
*/
break;
#endif
- };
+ }
+
ptr+=opsize-2;
length-=opsize;
- };
+ }
}
}
static inline void tcp_store_ts_recent(struct tcp_sock *tp)
{
tp->rx_opt.ts_recent = tp->rx_opt.rcv_tsval;
- tp->rx_opt.ts_recent_stamp = xtime.tv_sec;
+ tp->rx_opt.ts_recent_stamp = get_seconds();
}
static inline void tcp_replace_ts_recent(struct tcp_sock *tp, u32 seq)
* Not only, also it occurs for expired timestamps.
*/
- if((s32)(tp->rx_opt.rcv_tsval - tp->rx_opt.ts_recent) >= 0 ||
- xtime.tv_sec >= tp->rx_opt.ts_recent_stamp + TCP_PAWS_24DAYS)
+ if ((s32)(tp->rx_opt.rcv_tsval - tp->rx_opt.ts_recent) >= 0 ||
+ get_seconds() >= tp->rx_opt.ts_recent_stamp + TCP_PAWS_24DAYS)
tcp_store_ts_recent(tp);
}
}
static int tcp_disordered_ack(const struct sock *sk, const struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
u32 seq = TCP_SKB_CB(skb)->seq;
u32 ack = TCP_SKB_CB(skb)->ack_seq;
{
const struct tcp_sock *tp = tcp_sk(sk);
return ((s32)(tp->rx_opt.ts_recent - tp->rx_opt.rcv_tsval) > TCP_PAWS_WINDOW &&
- xtime.tv_sec < tp->rx_opt.ts_recent_stamp + TCP_PAWS_24DAYS &&
+ get_seconds() < tp->rx_opt.ts_recent_stamp + TCP_PAWS_24DAYS &&
!tcp_disordered_ack(sk, skb));
}
printk(KERN_ERR "%s: Impossible, sk->sk_state=%d\n",
__FUNCTION__, sk->sk_state);
break;
- };
+ }
/* It _is_ possible, that we have something out-of-order _after_ FIN.
* Probably, we should reset in this case. For now drop them.
*/
tp->rx_opt.num_sacks--;
tp->rx_opt.eff_sacks = min(tp->rx_opt.num_sacks + tp->rx_opt.dsack, 4 - tp->rx_opt.tstamp_ok);
- for(i=this_sack; i < tp->rx_opt.num_sacks; i++)
+ for (i=this_sack; i < tp->rx_opt.num_sacks; i++)
sp[i] = sp[i+1];
continue;
}
tp->rx_opt.num_sacks--;
sp--;
}
- for(; this_sack > 0; this_sack--, sp--)
+ for (; this_sack > 0; this_sack--, sp--)
*sp = *(sp-1);
new_sack:
return;
}
- for(this_sack = 0; this_sack < num_sacks; ) {
+ for (this_sack = 0; this_sack < num_sacks; ) {
/* Check if the start of the sack is covered by RCV.NXT. */
if (!before(tp->rcv_nxt, sp->start_seq)) {
int i;
__skb_unlink(skb, &tp->out_of_order_queue);
__skb_queue_tail(&sk->sk_receive_queue, skb);
tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
- if(skb->h.th->fin)
- tcp_fin(skb, sk, skb->h.th);
+ if (tcp_hdr(skb)->fin)
+ tcp_fin(skb, sk, tcp_hdr(skb));
}
}
static void tcp_data_queue(struct sock *sk, struct sk_buff *skb)
{
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
struct tcp_sock *tp = tcp_sk(sk);
int eaten = -1;
__skb_queue_tail(&sk->sk_receive_queue, skb);
}
tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
- if(skb->len)
- tcp_event_data_recv(sk, tp, skb);
- if(th->fin)
+ if (skb->len)
+ tcp_event_data_recv(sk, skb);
+ if (th->fin)
tcp_fin(skb, sk, th);
if (!skb_queue_empty(&tp->out_of_order_queue)) {
if (tp->rx_opt.num_sacks)
tcp_sack_remove(tp);
- tcp_fast_path_check(sk, tp);
+ tcp_fast_path_check(sk);
if (eaten > 0)
__kfree_skb(skb);
* - bloated or contains data before "start" or
* overlaps to the next one.
*/
- if (!skb->h.th->syn && !skb->h.th->fin &&
+ if (!tcp_hdr(skb)->syn && !tcp_hdr(skb)->fin &&
(tcp_win_from_space(skb->truesize) > skb->len ||
before(TCP_SKB_CB(skb)->seq, start) ||
(skb->next != tail &&
start = TCP_SKB_CB(skb)->end_seq;
skb = skb->next;
}
- if (skb == tail || skb->h.th->syn || skb->h.th->fin)
+ if (skb == tail || tcp_hdr(skb)->syn || tcp_hdr(skb)->fin)
return;
while (before(start, end)) {
nskb = alloc_skb(copy+header, GFP_ATOMIC);
if (!nskb)
return;
+
+ skb_set_mac_header(nskb, skb_mac_header(skb) - skb->head);
+ skb_set_network_header(nskb, (skb_network_header(skb) -
+ skb->head));
+ skb_set_transport_header(nskb, (skb_transport_header(skb) -
+ skb->head));
skb_reserve(nskb, header);
memcpy(nskb->head, skb->head, header);
- nskb->nh.raw = nskb->head + (skb->nh.raw-skb->head);
- nskb->h.raw = nskb->head + (skb->h.raw-skb->head);
- nskb->mac.raw = nskb->head + (skb->mac.raw-skb->head);
memcpy(nskb->cb, skb->cb, sizeof(skb->cb));
TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(nskb)->end_seq = start;
__skb_insert(nskb, skb->prev, skb, list);
__kfree_skb(skb);
NET_INC_STATS_BH(LINUX_MIB_TCPRCVCOLLAPSED);
skb = next;
- if (skb == tail || skb->h.th->syn || skb->h.th->fin)
+ if (skb == tail ||
+ tcp_hdr(skb)->syn ||
+ tcp_hdr(skb)->fin)
return;
}
}
NET_INC_STATS_BH(LINUX_MIB_PRUNECALLED);
if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
- tcp_clamp_window(sk, tp);
+ tcp_clamp_window(sk);
else if (tcp_memory_pressure)
tp->rcv_ssthresh = min(tp->rcv_ssthresh, 4U * tp->advmss);
tp->snd_cwnd_stamp = tcp_time_stamp;
}
-static int tcp_should_expand_sndbuf(struct sock *sk, struct tcp_sock *tp)
+static int tcp_should_expand_sndbuf(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
/* If the user specified a specific send buffer setting, do
* not modify it.
*/
{
struct tcp_sock *tp = tcp_sk(sk);
- if (tcp_should_expand_sndbuf(sk, tp)) {
+ if (tcp_should_expand_sndbuf(sk)) {
int sndmem = max_t(u32, tp->rx_opt.mss_clamp, tp->mss_cache) +
MAX_TCP_HEADER + 16 + sizeof(struct sk_buff),
demanded = max_t(unsigned int, tp->snd_cwnd,
}
}
-static inline void tcp_data_snd_check(struct sock *sk, struct tcp_sock *tp)
+static inline void tcp_data_snd_check(struct sock *sk)
{
- tcp_push_pending_frames(sk, tp);
+ tcp_push_pending_frames(sk);
tcp_check_space(sk);
}
int err;
local_bh_enable();
- if (skb->ip_summed==CHECKSUM_UNNECESSARY)
+ if (skb_csum_unnecessary(skb))
err = skb_copy_datagram_iovec(skb, hlen, tp->ucopy.iov, chunk);
else
err = skb_copy_and_csum_datagram_iovec(skb, hlen,
static inline int tcp_checksum_complete_user(struct sock *sk, struct sk_buff *skb)
{
- return skb->ip_summed != CHECKSUM_UNNECESSARY &&
+ return !skb_csum_unnecessary(skb) &&
__tcp_checksum_complete_user(sk, skb);
}
if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
tp->ucopy.dma_chan = get_softnet_dma();
- if (tp->ucopy.dma_chan && skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ if (tp->ucopy.dma_chan && skb_csum_unnecessary(skb)) {
dma_cookie = dma_skb_copy_datagram_iovec(tp->ucopy.dma_chan,
skb, hlen, tp->ucopy.iov, chunk, tp->ucopy.pinned_list);
tcp_rcv_space_adjust(sk);
if ((tp->ucopy.len == 0) ||
- (tcp_flag_word(skb->h.th) & TCP_FLAG_PSH) ||
+ (tcp_flag_word(tcp_hdr(skb)) & TCP_FLAG_PSH) ||
(atomic_read(&sk->sk_rmem_alloc) > (sk->sk_rcvbuf >> 1))) {
tp->ucopy.wakeup = 1;
sk->sk_data_ready(sk, 0);
*/
tcp_ack(sk, skb, 0);
__kfree_skb(skb);
- tcp_data_snd_check(sk, tp);
+ tcp_data_snd_check(sk);
return 0;
} else { /* Header too small */
TCP_INC_STATS_BH(TCP_MIB_INERRS);
tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
}
- tcp_event_data_recv(sk, tp, skb);
+ tcp_event_data_recv(sk, skb);
if (TCP_SKB_CB(skb)->ack_seq != tp->snd_una) {
/* Well, only one small jumplet in fast path... */
tcp_ack(sk, skb, FLAG_DATA);
- tcp_data_snd_check(sk, tp);
+ tcp_data_snd_check(sk);
if (!inet_csk_ack_scheduled(sk))
goto no_ack;
}
goto discard;
}
- if(th->rst) {
+ if (th->rst) {
tcp_reset(sk);
goto discard;
}
}
step5:
- if(th->ack)
+ if (th->ack)
tcp_ack(sk, skb, FLAG_SLOWPATH);
tcp_rcv_rtt_measure_ts(sk, skb);
/* step 7: process the segment text */
tcp_data_queue(sk, skb);
- tcp_data_snd_check(sk, tp);
+ tcp_data_snd_check(sk);
tcp_ack_snd_check(sk);
return 0;
goto discard;
case TCP_LISTEN:
- if(th->ack)
+ if (th->ack)
return 1;
- if(th->rst)
+ if (th->rst)
goto discard;
- if(th->syn) {
+ if (th->syn) {
if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
return 1;
/* Do step6 onward by hand. */
tcp_urg(sk, skb, th);
__kfree_skb(skb);
- tcp_data_snd_check(sk, tp);
+ tcp_data_snd_check(sk);
return 0;
}
}
/* step 2: check RST bit */
- if(th->rst) {
+ if (th->rst) {
tcp_reset(sk);
goto discard;
}
if (th->ack) {
int acceptable = tcp_ack(sk, skb, FLAG_SLOWPATH);
- switch(sk->sk_state) {
+ switch (sk->sk_state) {
case TCP_SYN_RECV:
if (acceptable) {
tp->copied_seq = tp->rcv_nxt;
/* tcp_data could move socket to TIME-WAIT */
if (sk->sk_state != TCP_CLOSE) {
- tcp_data_snd_check(sk, tp);
+ tcp_data_snd_check(sk);
tcp_ack_snd_check(sk);
}
#define ICMP_MIN_LENGTH 8
/* Socket used for sending RSTs */
-static struct socket *tcp_socket;
+static struct socket *tcp_socket __read_mostly;
void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb);
static inline __u32 tcp_v4_init_sequence(struct sk_buff *skb)
{
- return secure_tcp_sequence_number(skb->nh.iph->daddr,
- skb->nh.iph->saddr,
- skb->h.th->dest,
- skb->h.th->source);
+ return secure_tcp_sequence_number(ip_hdr(skb)->daddr,
+ ip_hdr(skb)->saddr,
+ tcp_hdr(skb)->dest,
+ tcp_hdr(skb)->source);
}
int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
*/
if (tcptw->tw_ts_recent_stamp &&
(twp == NULL || (sysctl_tcp_tw_reuse &&
- xtime.tv_sec - tcptw->tw_ts_recent_stamp > 1))) {
+ get_seconds() - tcptw->tw_ts_recent_stamp > 1))) {
tp->write_seq = tcptw->tw_snd_nxt + 65535 + 2;
if (tp->write_seq == 0)
tp->write_seq = 1;
* when trying new connection.
*/
if (peer != NULL &&
- peer->tcp_ts_stamp + TCP_PAWS_MSL >= xtime.tv_sec) {
+ peer->tcp_ts_stamp + TCP_PAWS_MSL >= get_seconds()) {
tp->rx_opt.ts_recent_stamp = peer->tcp_ts_stamp;
tp->rx_opt.ts_recent = peer->tcp_ts;
}
struct tcphdr *th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
struct tcp_sock *tp;
struct inet_sock *inet;
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct sock *sk;
__u32 seq;
int err;
void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
{
struct inet_sock *inet = inet_sk(sk);
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
th->check = ~tcp_v4_check(len, inet->saddr,
inet->daddr, 0);
+ skb->csum_start = skb_transport_header(skb) - skb->head;
skb->csum_offset = offsetof(struct tcphdr, check);
} else {
th->check = tcp_v4_check(len, inet->saddr, inet->daddr,
int tcp_v4_gso_send_check(struct sk_buff *skb)
{
- struct iphdr *iph;
+ const struct iphdr *iph;
struct tcphdr *th;
if (!pskb_may_pull(skb, sizeof(*th)))
return -EINVAL;
- iph = skb->nh.iph;
- th = skb->h.th;
+ iph = ip_hdr(skb);
+ th = tcp_hdr(skb);
th->check = 0;
th->check = ~tcp_v4_check(skb->len, iph->saddr, iph->daddr, 0);
+ skb->csum_start = skb_transport_header(skb) - skb->head;
skb->csum_offset = offsetof(struct tcphdr, check);
skb->ip_summed = CHECKSUM_PARTIAL;
return 0;
static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
{
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
struct {
struct tcphdr th;
#ifdef CONFIG_TCP_MD5SIG
arg.iov[0].iov_len = sizeof(rep.th);
#ifdef CONFIG_TCP_MD5SIG
- key = sk ? tcp_v4_md5_do_lookup(sk, skb->nh.iph->daddr) : NULL;
+ key = sk ? tcp_v4_md5_do_lookup(sk, ip_hdr(skb)->daddr) : NULL;
if (key) {
rep.opt[0] = htonl((TCPOPT_NOP << 24) |
(TCPOPT_NOP << 16) |
tcp_v4_do_calc_md5_hash((__u8 *)&rep.opt[1],
key,
- skb->nh.iph->daddr,
- skb->nh.iph->saddr,
+ ip_hdr(skb)->daddr,
+ ip_hdr(skb)->saddr,
&rep.th, IPPROTO_TCP,
arg.iov[0].iov_len);
}
#endif
- arg.csum = csum_tcpudp_nofold(skb->nh.iph->daddr,
- skb->nh.iph->saddr, /* XXX */
+ arg.csum = csum_tcpudp_nofold(ip_hdr(skb)->daddr,
+ ip_hdr(skb)->saddr, /* XXX */
sizeof(struct tcphdr), IPPROTO_TCP, 0);
arg.csumoffset = offsetof(struct tcphdr, check) / 2;
struct sk_buff *skb, u32 seq, u32 ack,
u32 win, u32 ts)
{
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
struct {
struct tcphdr th;
__be32 opt[(TCPOLEN_TSTAMP_ALIGNED >> 2)
* skb->sk) holds true, but we program defensively.
*/
if (!twsk && skb->sk) {
- key = tcp_v4_md5_do_lookup(skb->sk, skb->nh.iph->daddr);
+ key = tcp_v4_md5_do_lookup(skb->sk, ip_hdr(skb)->daddr);
} else if (twsk && twsk->tw_md5_keylen) {
tw_key.key = twsk->tw_md5_key;
tw_key.keylen = twsk->tw_md5_keylen;
tcp_v4_do_calc_md5_hash((__u8 *)&rep.opt[offset],
key,
- skb->nh.iph->daddr,
- skb->nh.iph->saddr,
+ ip_hdr(skb)->daddr,
+ ip_hdr(skb)->saddr,
&rep.th, IPPROTO_TCP,
arg.iov[0].iov_len);
}
#endif
- arg.csum = csum_tcpudp_nofold(skb->nh.iph->daddr,
- skb->nh.iph->saddr, /* XXX */
+ arg.csum = csum_tcpudp_nofold(ip_hdr(skb)->daddr,
+ ip_hdr(skb)->saddr, /* XXX */
arg.iov[0].iov_len, IPPROTO_TCP, 0);
arg.csumoffset = offsetof(struct tcphdr, check) / 2;
skb = tcp_make_synack(sk, dst, req);
if (skb) {
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
th->check = tcp_v4_check(skb->len,
ireq->loc_addr,
warntime = jiffies;
printk(KERN_INFO
"possible SYN flooding on port %d. Sending cookies.\n",
- ntohs(skb->h.th->dest));
+ ntohs(tcp_hdr(skb)->dest));
}
}
#endif
*/
__u8 *hash_location = NULL;
struct tcp_md5sig_key *hash_expected;
- struct iphdr *iph = skb->nh.iph;
- struct tcphdr *th = skb->h.th;
+ const struct iphdr *iph = ip_hdr(skb);
+ struct tcphdr *th = tcp_hdr(skb);
int length = (th->doff << 2) - sizeof(struct tcphdr);
int genhash;
unsigned char *ptr;
struct inet_request_sock *ireq;
struct tcp_options_received tmp_opt;
struct request_sock *req;
- __be32 saddr = skb->nh.iph->saddr;
- __be32 daddr = skb->nh.iph->daddr;
+ __be32 saddr = ip_hdr(skb)->saddr;
+ __be32 daddr = ip_hdr(skb)->daddr;
__u32 isn = TCP_SKB_CB(skb)->when;
struct dst_entry *dst = NULL;
#ifdef CONFIG_SYN_COOKIES
ireq->rmt_addr = saddr;
ireq->opt = tcp_v4_save_options(sk, skb);
if (!want_cookie)
- TCP_ECN_create_request(req, skb->h.th);
+ TCP_ECN_create_request(req, tcp_hdr(skb));
if (want_cookie) {
#ifdef CONFIG_SYN_COOKIES
(dst = inet_csk_route_req(sk, req)) != NULL &&
(peer = rt_get_peer((struct rtable *)dst)) != NULL &&
peer->v4daddr == saddr) {
- if (xtime.tv_sec < peer->tcp_ts_stamp + TCP_PAWS_MSL &&
+ if (get_seconds() < peer->tcp_ts_stamp + TCP_PAWS_MSL &&
(s32)(peer->tcp_ts - req->ts_recent) >
TCP_PAWS_WINDOW) {
NET_INC_STATS_BH(LINUX_MIB_PAWSPASSIVEREJECTED);
LIMIT_NETDEBUG(KERN_DEBUG "TCP: drop open "
"request from %u.%u.%u.%u/%u\n",
NIPQUAD(saddr),
- ntohs(skb->h.th->source));
+ ntohs(tcp_hdr(skb)->source));
dst_release(dst);
goto drop_and_free;
}
newinet->opt = ireq->opt;
ireq->opt = NULL;
newinet->mc_index = inet_iif(skb);
- newinet->mc_ttl = skb->nh.iph->ttl;
+ newinet->mc_ttl = ip_hdr(skb)->ttl;
inet_csk(newsk)->icsk_ext_hdr_len = 0;
if (newinet->opt)
inet_csk(newsk)->icsk_ext_hdr_len = newinet->opt->optlen;
static struct sock *tcp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
{
- struct tcphdr *th = skb->h.th;
- struct iphdr *iph = skb->nh.iph;
+ struct tcphdr *th = tcp_hdr(skb);
+ const struct iphdr *iph = ip_hdr(skb);
struct sock *nsk;
struct request_sock **prev;
/* Find possible connection requests. */
if (req)
return tcp_check_req(sk, skb, req, prev);
- nsk = inet_lookup_established(&tcp_hashinfo, skb->nh.iph->saddr,
- th->source, skb->nh.iph->daddr,
- th->dest, inet_iif(skb));
+ nsk = inet_lookup_established(&tcp_hashinfo, iph->saddr, th->source,
+ iph->daddr, th->dest, inet_iif(skb));
if (nsk) {
if (nsk->sk_state != TCP_TIME_WAIT) {
static __sum16 tcp_v4_checksum_init(struct sk_buff *skb)
{
+ const struct iphdr *iph = ip_hdr(skb);
+
if (skb->ip_summed == CHECKSUM_COMPLETE) {
- if (!tcp_v4_check(skb->len, skb->nh.iph->saddr,
- skb->nh.iph->daddr, skb->csum)) {
+ if (!tcp_v4_check(skb->len, iph->saddr,
+ iph->daddr, skb->csum)) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
return 0;
}
}
- skb->csum = csum_tcpudp_nofold(skb->nh.iph->saddr, skb->nh.iph->daddr,
+ skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
skb->len, IPPROTO_TCP, 0);
if (skb->len <= 76) {
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
TCP_CHECK_TIMER(sk);
- if (tcp_rcv_established(sk, skb, skb->h.th, skb->len)) {
+ if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len)) {
rsk = sk;
goto reset;
}
return 0;
}
- if (skb->len < (skb->h.th->doff << 2) || tcp_checksum_complete(skb))
+ if (skb->len < tcp_hdrlen(skb) || tcp_checksum_complete(skb))
goto csum_err;
if (sk->sk_state == TCP_LISTEN) {
}
TCP_CHECK_TIMER(sk);
- if (tcp_rcv_state_process(sk, skb, skb->h.th, skb->len)) {
+ if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len)) {
rsk = sk;
goto reset;
}
int tcp_v4_rcv(struct sk_buff *skb)
{
+ const struct iphdr *iph;
struct tcphdr *th;
struct sock *sk;
int ret;
if (!pskb_may_pull(skb, sizeof(struct tcphdr)))
goto discard_it;
- th = skb->h.th;
+ th = tcp_hdr(skb);
if (th->doff < sizeof(struct tcphdr) / 4)
goto bad_packet;
* Packet length and doff are validated by header prediction,
* provided case of th->doff==0 is eliminated.
* So, we defer the checks. */
- if ((skb->ip_summed != CHECKSUM_UNNECESSARY &&
- tcp_v4_checksum_init(skb)))
+ if (!skb_csum_unnecessary(skb) && tcp_v4_checksum_init(skb))
goto bad_packet;
- th = skb->h.th;
+ th = tcp_hdr(skb);
+ iph = ip_hdr(skb);
TCP_SKB_CB(skb)->seq = ntohl(th->seq);
TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin +
skb->len - th->doff * 4);
TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);
TCP_SKB_CB(skb)->when = 0;
- TCP_SKB_CB(skb)->flags = skb->nh.iph->tos;
+ TCP_SKB_CB(skb)->flags = iph->tos;
TCP_SKB_CB(skb)->sacked = 0;
- sk = __inet_lookup(&tcp_hashinfo, skb->nh.iph->saddr, th->source,
- skb->nh.iph->daddr, th->dest,
- inet_iif(skb));
-
+ sk = __inet_lookup(&tcp_hashinfo, iph->saddr, th->source,
+ iph->daddr, th->dest, inet_iif(skb));
if (!sk)
goto no_tcp_socket;
switch (tcp_timewait_state_process(inet_twsk(sk), skb, th)) {
case TCP_TW_SYN: {
struct sock *sk2 = inet_lookup_listener(&tcp_hashinfo,
- skb->nh.iph->daddr,
- th->dest,
+ iph->daddr, th->dest,
inet_iif(skb));
if (sk2) {
inet_twsk_deschedule(inet_twsk(sk), &tcp_death_row);
if (peer) {
if ((s32)(peer->tcp_ts - tp->rx_opt.ts_recent) <= 0 ||
- (peer->tcp_ts_stamp + TCP_PAWS_MSL < xtime.tv_sec &&
+ (peer->tcp_ts_stamp + TCP_PAWS_MSL < get_seconds() &&
peer->tcp_ts_stamp <= tp->rx_opt.ts_recent_stamp)) {
peer->tcp_ts_stamp = tp->rx_opt.ts_recent_stamp;
peer->tcp_ts = tp->rx_opt.ts_recent;
const struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw);
if ((s32)(peer->tcp_ts - tcptw->tw_ts_recent) <= 0 ||
- (peer->tcp_ts_stamp + TCP_PAWS_MSL < xtime.tv_sec &&
+ (peer->tcp_ts_stamp + TCP_PAWS_MSL < get_seconds() &&
peer->tcp_ts_stamp <= tcptw->tw_ts_recent_stamp)) {
peer->tcp_ts_stamp = tcptw->tw_ts_recent_stamp;
peer->tcp_ts = tcptw->tw_ts_recent;
tcp_cleanup_congestion_control(sk);
/* Cleanup up the write buffer. */
- sk_stream_writequeue_purge(sk);
+ tcp_write_queue_purge(sk);
/* Cleans up our, hopefully empty, out_of_order_queue. */
__skb_queue_purge(&tp->out_of_order_queue);
req);
}
-static void get_tcp4_sock(struct sock *sp, char *tmpbuf, int i)
+static void get_tcp4_sock(struct sock *sk, char *tmpbuf, int i)
{
int timer_active;
unsigned long timer_expires;
- struct tcp_sock *tp = tcp_sk(sp);
- const struct inet_connection_sock *icsk = inet_csk(sp);
- struct inet_sock *inet = inet_sk(sp);
+ struct tcp_sock *tp = tcp_sk(sk);
+ const struct inet_connection_sock *icsk = inet_csk(sk);
+ struct inet_sock *inet = inet_sk(sk);
__be32 dest = inet->daddr;
__be32 src = inet->rcv_saddr;
__u16 destp = ntohs(inet->dport);
} else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {
timer_active = 4;
timer_expires = icsk->icsk_timeout;
- } else if (timer_pending(&sp->sk_timer)) {
+ } else if (timer_pending(&sk->sk_timer)) {
timer_active = 2;
- timer_expires = sp->sk_timer.expires;
+ timer_expires = sk->sk_timer.expires;
} else {
timer_active = 0;
timer_expires = jiffies;
sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
"%08X %5d %8d %lu %d %p %u %u %u %u %d",
- i, src, srcp, dest, destp, sp->sk_state,
+ i, src, srcp, dest, destp, sk->sk_state,
tp->write_seq - tp->snd_una,
- sp->sk_state == TCP_LISTEN ? sp->sk_ack_backlog :
+ sk->sk_state == TCP_LISTEN ? sk->sk_ack_backlog :
(tp->rcv_nxt - tp->copied_seq),
timer_active,
jiffies_to_clock_t(timer_expires - jiffies),
icsk->icsk_retransmits,
- sock_i_uid(sp),
+ sock_i_uid(sk),
icsk->icsk_probes_out,
- sock_i_ino(sp),
- atomic_read(&sp->sk_refcnt), sp,
+ sock_i_ino(sk),
+ atomic_read(&sk->sk_refcnt), sk,
icsk->icsk_rto,
icsk->icsk_ack.ato,
(icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong,
* 3. calc smoothed OWD (SOWD).
* Most ideas come from the original TCP-LP implementation.
*/
-static void tcp_lp_rtt_sample(struct sock *sk, u32 usrtt)
+static void tcp_lp_rtt_sample(struct sock *sk, u32 rtt)
{
struct lp *lp = inet_csk_ca(sk);
s64 mowd = tcp_lp_owd_calculator(sk);
* newReno in increase case.
* We work it out by following the idea from TCP-LP's paper directly
*/
-static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked)
+static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked, ktime_t last)
{
struct tcp_sock *tp = tcp_sk(sk);
struct lp *lp = inet_csk_ca(sk);
+ tcp_lp_rtt_sample(sk, ktime_to_us(net_timedelta(last)));
+
/* calc inference */
if (tcp_time_stamp > tp->rx_opt.rcv_tsecr)
lp->inference = 3 * (tcp_time_stamp - tp->rx_opt.rcv_tsecr);
}
static struct tcp_congestion_ops tcp_lp = {
+ .flags = TCP_CONG_RTT_STAMP,
.init = tcp_lp_init,
.ssthresh = tcp_reno_ssthresh,
.cong_avoid = tcp_lp_cong_avoid,
.min_cwnd = tcp_reno_min_cwnd,
- .rtt_sample = tcp_lp_rtt_sample,
.pkts_acked = tcp_lp_pkts_acked,
.owner = THIS_MODULE,
tw->tw_substate = TCP_TIME_WAIT;
tcptw->tw_rcv_nxt = TCP_SKB_CB(skb)->end_seq;
if (tmp_opt.saw_tstamp) {
- tcptw->tw_ts_recent_stamp = xtime.tv_sec;
+ tcptw->tw_ts_recent_stamp = get_seconds();
tcptw->tw_ts_recent = tmp_opt.rcv_tsval;
}
if (tmp_opt.saw_tstamp) {
tcptw->tw_ts_recent = tmp_opt.rcv_tsval;
- tcptw->tw_ts_recent_stamp = xtime.tv_sec;
+ tcptw->tw_ts_recent_stamp = get_seconds();
}
inet_twsk_put(tw);
if (paws_reject)
NET_INC_STATS_BH(LINUX_MIB_PAWSESTABREJECTED);
- if(!th->rst) {
+ if (!th->rst) {
/* In this case we must reset the TIMEWAIT timer.
*
* If it is ACKless SYN it may be both old duplicate
if (tcp_alloc_md5sig_pool() == NULL)
BUG();
}
- } while(0);
+ } while (0);
#endif
/* Linkage updates. */
/* Now setup tcp_sock */
newtp = tcp_sk(newsk);
newtp->pred_flags = 0;
- newtp->rcv_nxt = treq->rcv_isn + 1;
- newtp->snd_nxt = newtp->snd_una = newtp->snd_sml = treq->snt_isn + 1;
+ newtp->rcv_wup = newtp->copied_seq = newtp->rcv_nxt = treq->rcv_isn + 1;
+ newtp->snd_sml = newtp->snd_una = newtp->snd_nxt = treq->snt_isn + 1;
tcp_prequeue_init(newtp);
tcp_set_ca_state(newsk, TCP_CA_Open);
tcp_init_xmit_timers(newsk);
skb_queue_head_init(&newtp->out_of_order_queue);
- newtp->rcv_wup = treq->rcv_isn + 1;
newtp->write_seq = treq->snt_isn + 1;
newtp->pushed_seq = newtp->write_seq;
- newtp->copied_seq = treq->rcv_isn + 1;
newtp->rx_opt.saw_tstamp = 0;
keepalive_time_when(newtp));
newtp->rx_opt.tstamp_ok = ireq->tstamp_ok;
- if((newtp->rx_opt.sack_ok = ireq->sack_ok) != 0) {
+ if ((newtp->rx_opt.sack_ok = ireq->sack_ok) != 0) {
if (sysctl_tcp_fack)
newtp->rx_opt.sack_ok |= 2;
}
newtp->rx_opt.snd_wscale = newtp->rx_opt.rcv_wscale = 0;
newtp->window_clamp = min(newtp->window_clamp, 65535U);
}
- newtp->snd_wnd = ntohs(skb->h.th->window) << newtp->rx_opt.snd_wscale;
+ newtp->snd_wnd = (ntohs(tcp_hdr(skb)->window) <<
+ newtp->rx_opt.snd_wscale);
newtp->max_window = newtp->snd_wnd;
if (newtp->rx_opt.tstamp_ok) {
newtp->rx_opt.ts_recent = req->ts_recent;
- newtp->rx_opt.ts_recent_stamp = xtime.tv_sec;
+ newtp->rx_opt.ts_recent_stamp = get_seconds();
newtp->tcp_header_len = sizeof(struct tcphdr) + TCPOLEN_TSTAMP_ALIGNED;
} else {
newtp->rx_opt.ts_recent_stamp = 0;
struct request_sock *req,
struct request_sock **prev)
{
- struct tcphdr *th = skb->h.th;
+ const struct tcphdr *th = tcp_hdr(skb);
__be32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK);
int paws_reject = 0;
struct tcp_options_received tmp_opt;
* it can be estimated (approximately)
* from another data.
*/
- tmp_opt.ts_recent_stamp = xtime.tv_sec - ((TCP_TIMEOUT_INIT/HZ)<<req->retrans);
+ tmp_opt.ts_recent_stamp = get_seconds() - ((TCP_TIMEOUT_INIT/HZ)<<req->retrans);
paws_reject = tcp_paws_check(&tmp_opt, th->rst);
}
}
int state = child->sk_state;
if (!sock_owned_by_user(child)) {
- ret = tcp_rcv_state_process(child, skb, skb->h.th, skb->len);
-
+ ret = tcp_rcv_state_process(child, skb, tcp_hdr(skb),
+ skb->len);
/* Wakeup parent, send SIGIO */
if (state == TCP_SYN_RECV && child->sk_state != state)
parent->sk_data_ready(parent, 0);
/* By default, RFC2861 behavior. */
int sysctl_tcp_slow_start_after_idle __read_mostly = 1;
-static void update_send_head(struct sock *sk, struct tcp_sock *tp,
- struct sk_buff *skb)
+static void update_send_head(struct sock *sk, struct sk_buff *skb)
{
- sk->sk_send_head = skb->next;
- if (sk->sk_send_head == (struct sk_buff *)&sk->sk_write_queue)
- sk->sk_send_head = NULL;
+ struct tcp_sock *tp = tcp_sk(sk);
+
+ tcp_advance_send_head(sk, skb);
tp->snd_nxt = TCP_SKB_CB(skb)->end_seq;
- tcp_packets_out_inc(sk, tp, skb);
+ tcp_packets_out_inc(sk, skb);
}
/* SND.NXT, if window was not shrunk.
* Anything in between SND.UNA...SND.UNA+SND.WND also can be already
* invalid. OK, let's make this for now:
*/
-static inline __u32 tcp_acceptable_seq(struct sock *sk, struct tcp_sock *tp)
+static inline __u32 tcp_acceptable_seq(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
+
if (!before(tp->snd_una+tp->snd_wnd, tp->snd_nxt))
return tp->snd_nxt;
else
u32 new_win = __tcp_select_window(sk);
/* Never shrink the offered window */
- if(new_win < cur_win) {
+ if (new_win < cur_win) {
/* Danger Will Robinson!
* Don't update rcv_wup/rcv_wnd here or else
* we will not be able to advertise a zero
(TCPOPT_SACK << 8) |
(TCPOLEN_SACK_BASE + (tp->rx_opt.eff_sacks *
TCPOLEN_SACK_PERBLOCK)));
- for(this_sack = 0; this_sack < tp->rx_opt.eff_sacks; this_sack++) {
+
+ for (this_sack = 0; this_sack < tp->rx_opt.eff_sacks; this_sack++) {
*ptr++ = htonl(sp[this_sack].start_seq);
*ptr++ = htonl(sp[this_sack].end_seq);
}
+
if (tp->rx_opt.dsack) {
tp->rx_opt.dsack = 0;
tp->rx_opt.eff_sacks--;
*/
*ptr++ = htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | mss);
if (ts) {
- if(sack)
+ if (sack)
*ptr++ = htonl((TCPOPT_SACK_PERM << 24) |
(TCPOLEN_SACK_PERM << 16) |
(TCPOPT_TIMESTAMP << 8) |
TCPOLEN_TIMESTAMP);
*ptr++ = htonl(tstamp); /* TSVAL */
*ptr++ = htonl(ts_recent); /* TSECR */
- } else if(sack)
+ } else if (sack)
*ptr++ = htonl((TCPOPT_NOP << 24) |
(TCPOPT_NOP << 16) |
(TCPOPT_SACK_PERM << 8) |
/* If congestion control is doing timestamping, we must
* take such a timestamp before we potentially clone/copy.
*/
- if (icsk->icsk_ca_ops->rtt_sample)
+ if (icsk->icsk_ca_ops->flags & TCP_CONG_RTT_STAMP)
__net_timestamp(skb);
if (likely(clone_it)) {
sysctl_flags = 0;
if (unlikely(tcb->flags & TCPCB_FLAG_SYN)) {
tcp_header_size = sizeof(struct tcphdr) + TCPOLEN_MSS;
- if(sysctl_tcp_timestamps) {
+ if (sysctl_tcp_timestamps) {
tcp_header_size += TCPOLEN_TSTAMP_ALIGNED;
sysctl_flags |= SYSCTL_FLAG_TSTAMPS;
}
tcp_header_size += TCPOLEN_MD5SIG_ALIGNED;
#endif
- th = (struct tcphdr *) skb_push(skb, tcp_header_size);
- skb->h.th = th;
+ skb_push(skb, tcp_header_size);
+ skb_reset_transport_header(skb);
skb_set_owner_w(skb, sk);
/* Build TCP header and checksum it. */
+ th = tcp_hdr(skb);
th->source = inet->sport;
th->dest = inet->dport;
th->seq = htonl(tcb->seq);
md5 ? &md5_hash_location :
#endif
NULL);
- TCP_ECN_send(sk, tp, skb, tcp_header_size);
+ TCP_ECN_send(sk, skb, tcp_header_size);
}
#ifdef CONFIG_TCP_MD5SIG
tp->af_specific->calc_md5_hash(md5_hash_location,
md5,
sk, NULL, NULL,
- skb->h.th,
+ tcp_hdr(skb),
sk->sk_protocol,
skb->len);
}
if (likely(err <= 0))
return err;
- tcp_enter_cwr(sk);
+ tcp_enter_cwr(sk, 1);
return net_xmit_eval(err);
/* Advance write_seq and place onto the write_queue. */
tp->write_seq = TCP_SKB_CB(skb)->end_seq;
skb_header_release(skb);
- __skb_queue_tail(&sk->sk_write_queue, skb);
+ tcp_add_write_queue_tail(sk, skb);
sk_charge_skb(sk, skb);
-
- /* Queue it, remembering where we must start sending. */
- if (sk->sk_send_head == NULL)
- sk->sk_send_head = skb;
}
static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned int mss_now)
/* Link BUFF into the send queue. */
skb_header_release(buff);
- __skb_append(skb, buff, &sk->sk_write_queue);
+ tcp_insert_write_queue_after(skb, buff, sk);
return 0;
}
}
skb_shinfo(skb)->nr_frags = k;
- skb->tail = skb->data;
+ skb_reset_tail_pointer(skb);
skb->data_len -= len;
skb->len = skb->data_len;
}
/* Congestion window validation. (RFC2861) */
-static void tcp_cwnd_validate(struct sock *sk, struct tcp_sock *tp)
+static void tcp_cwnd_validate(struct sock *sk)
{
+ struct tcp_sock *tp = tcp_sk(sk);
__u32 packets_out = tp->packets_out;
if (packets_out >= tp->snd_cwnd) {
return !after(end_seq, tp->snd_una + tp->snd_wnd);
}
-/* This checks if the data bearing packet SKB (usually sk->sk_send_head)
+/* This checks if the data bearing packet SKB (usually tcp_send_head(sk))
* should be put on the wire right now. If so, it returns the number of
* packets allowed by the congestion window.
*/
return cwnd_quota;
}
-static inline int tcp_skb_is_last(const struct sock *sk,
- const struct sk_buff *skb)
-{
- return skb->next == (struct sk_buff *)&sk->sk_write_queue;
-}
-
-int tcp_may_send_now(struct sock *sk, struct tcp_sock *tp)
+int tcp_may_send_now(struct sock *sk)
{
- struct sk_buff *skb = sk->sk_send_head;
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct sk_buff *skb = tcp_send_head(sk);
return (skb &&
tcp_snd_test(sk, skb, tcp_current_mss(sk, 1),
/* Link BUFF into the send queue. */
skb_header_release(buff);
- __skb_append(skb, buff, &sk->sk_write_queue);
+ tcp_insert_write_queue_after(skb, buff, sk);
return 0;
}
*
* This algorithm is from John Heffner.
*/
-static int tcp_tso_should_defer(struct sock *sk, struct tcp_sock *tp, struct sk_buff *skb)
+static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_sock *tp = tcp_sk(sk);
const struct inet_connection_sock *icsk = inet_csk(sk);
u32 send_win, cong_win, limit, in_flight;
/* Have enough data in the send queue to probe? */
len = 0;
- if ((skb = sk->sk_send_head) == NULL)
+ if ((skb = tcp_send_head(sk)) == NULL)
return -1;
while ((len += skb->len) < probe_size && !tcp_skb_is_last(sk, skb))
- skb = skb->next;
+ skb = tcp_write_queue_next(sk, skb);
if (len < probe_size)
return -1;
return -1;
sk_charge_skb(sk, nskb);
- skb = sk->sk_send_head;
- __skb_insert(nskb, skb->prev, skb, &sk->sk_write_queue);
- sk->sk_send_head = nskb;
+ skb = tcp_send_head(sk);
+ tcp_insert_write_queue_before(nskb, skb, sk);
+ tcp_advance_send_head(sk, skb);
TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(skb)->seq;
TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size;
len = 0;
while (len < probe_size) {
- next = skb->next;
+ next = tcp_write_queue_next(sk, skb);
copy = min_t(int, skb->len, probe_size - len);
if (nskb->ip_summed)
/* We've eaten all the data from this skb.
* Throw it away. */
TCP_SKB_CB(nskb)->flags |= TCP_SKB_CB(skb)->flags;
- __skb_unlink(skb, &sk->sk_write_queue);
+ tcp_unlink_write_queue(skb, sk);
sk_stream_free_skb(sk, skb);
} else {
TCP_SKB_CB(nskb)->flags |= TCP_SKB_CB(skb)->flags &
/* Decrement cwnd here because we are sending
* effectively two packets. */
tp->snd_cwnd--;
- update_send_head(sk, tp, nskb);
+ update_send_head(sk, nskb);
icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);
tp->mtu_probe.probe_seq_start = TCP_SKB_CB(nskb)->seq;
sent_pkts = 1;
}
- while ((skb = sk->sk_send_head)) {
+ while ((skb = tcp_send_head(sk))) {
unsigned int limit;
tso_segs = tcp_init_tso_segs(sk, skb, mss_now);
nonagle : TCP_NAGLE_PUSH))))
break;
} else {
- if (tcp_tso_should_defer(sk, tp, skb))
+ if (tcp_tso_should_defer(sk, skb))
break;
}
/* Advance the send_head. This one is sent out.
* This call will increment packets_out.
*/
- update_send_head(sk, tp, skb);
+ update_send_head(sk, skb);
tcp_minshall_update(tp, mss_now, skb);
sent_pkts++;
}
if (likely(sent_pkts)) {
- tcp_cwnd_validate(sk, tp);
+ tcp_cwnd_validate(sk);
return 0;
}
- return !tp->packets_out && sk->sk_send_head;
+ return !tp->packets_out && tcp_send_head(sk);
}
/* Push out any pending frames which were held back due to
* TCP_CORK or attempt at coalescing tiny packets.
* The socket must be locked by the caller.
*/
-void __tcp_push_pending_frames(struct sock *sk, struct tcp_sock *tp,
- unsigned int cur_mss, int nonagle)
+void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
+ int nonagle)
{
- struct sk_buff *skb = sk->sk_send_head;
+ struct sk_buff *skb = tcp_send_head(sk);
if (skb) {
if (tcp_write_xmit(sk, cur_mss, nonagle))
- tcp_check_probe_timer(sk, tp);
+ tcp_check_probe_timer(sk);
}
}
void tcp_push_one(struct sock *sk, unsigned int mss_now)
{
struct tcp_sock *tp = tcp_sk(sk);
- struct sk_buff *skb = sk->sk_send_head;
+ struct sk_buff *skb = tcp_send_head(sk);
unsigned int tso_segs, cwnd_quota;
BUG_ON(!skb || skb->len < mss_now);
TCP_SKB_CB(skb)->when = tcp_time_stamp;
if (likely(!tcp_transmit_skb(sk, skb, 1, sk->sk_allocation))) {
- update_send_head(sk, tp, skb);
- tcp_cwnd_validate(sk, tp);
+ update_send_head(sk, skb);
+ tcp_cwnd_validate(sk);
return;
}
}
static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *skb, int mss_now)
{
struct tcp_sock *tp = tcp_sk(sk);
- struct sk_buff *next_skb = skb->next;
+ struct sk_buff *next_skb = tcp_write_queue_next(sk, skb);
/* The first test we must make is that neither of these two
* SKB's are still referenced by someone else.
u16 flags = TCP_SKB_CB(skb)->flags;
/* Also punt if next skb has been SACK'd. */
- if(TCP_SKB_CB(next_skb)->sacked & TCPCB_SACKED_ACKED)
+ if (TCP_SKB_CB(next_skb)->sacked & TCPCB_SACKED_ACKED)
return;
/* Next skb is out of window. */
clear_all_retrans_hints(tp);
/* Ok. We will be able to collapse the packet. */
- __skb_unlink(next_skb, &sk->sk_write_queue);
+ tcp_unlink_write_queue(next_skb, sk);
- memcpy(skb_put(skb, next_skb_size), next_skb->data, next_skb_size);
+ skb_copy_from_linear_data(next_skb,
+ skb_put(skb, next_skb_size),
+ next_skb_size);
if (next_skb->ip_summed == CHECKSUM_PARTIAL)
skb->ip_summed = CHECKSUM_PARTIAL;
unsigned int mss = tcp_current_mss(sk, 0);
int lost = 0;
- sk_stream_for_retrans_queue(skb, sk) {
+ tcp_for_write_queue(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
if (skb->len > mss &&
!(TCP_SKB_CB(skb)->sacked&TCPCB_SACKED_ACKED)) {
if (TCP_SKB_CB(skb)->sacked&TCPCB_SACKED_RETRANS) {
}
/* Collapse two adjacent packets if worthwhile and we can. */
- if(!(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_SYN) &&
- (skb->len < (cur_mss >> 1)) &&
- (skb->next != sk->sk_send_head) &&
- (skb->next != (struct sk_buff *)&sk->sk_write_queue) &&
- (skb_shinfo(skb)->nr_frags == 0 && skb_shinfo(skb->next)->nr_frags == 0) &&
- (tcp_skb_pcount(skb) == 1 && tcp_skb_pcount(skb->next) == 1) &&
- (sysctl_tcp_retrans_collapse != 0))
+ if (!(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_SYN) &&
+ (skb->len < (cur_mss >> 1)) &&
+ (tcp_write_queue_next(sk, skb) != tcp_send_head(sk)) &&
+ (!tcp_skb_is_last(sk, skb)) &&
+ (skb_shinfo(skb)->nr_frags == 0 && skb_shinfo(tcp_write_queue_next(sk, skb))->nr_frags == 0) &&
+ (tcp_skb_pcount(skb) == 1 && tcp_skb_pcount(tcp_write_queue_next(sk, skb)) == 1) &&
+ (sysctl_tcp_retrans_collapse != 0))
tcp_retrans_try_collapse(sk, skb, cur_mss);
if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
* retransmit when old data is attached. So strip it off
* since it is cheap to do so and saves bytes on the network.
*/
- if(skb->len > 0 &&
- (TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN) &&
- tp->snd_una == (TCP_SKB_CB(skb)->end_seq - 1)) {
+ if (skb->len > 0 &&
+ (TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN) &&
+ tp->snd_una == (TCP_SKB_CB(skb)->end_seq - 1)) {
if (!pskb_trim(skb, 0)) {
TCP_SKB_CB(skb)->seq = TCP_SKB_CB(skb)->end_seq - 1;
skb_shinfo(skb)->gso_segs = 1;
skb = tp->retransmit_skb_hint;
packet_cnt = tp->retransmit_cnt_hint;
}else{
- skb = sk->sk_write_queue.next;
+ skb = tcp_write_queue_head(sk);
packet_cnt = 0;
}
/* First pass: retransmit lost packets. */
if (tp->lost_out) {
- sk_stream_for_retrans_queue_from(skb, sk) {
+ tcp_for_write_queue_from(skb, sk) {
__u8 sacked = TCP_SKB_CB(skb)->sacked;
+ if (skb == tcp_send_head(sk))
+ break;
/* we could do better than to assign each time */
tp->retransmit_skb_hint = skb;
tp->retransmit_cnt_hint = packet_cnt;
else
NET_INC_STATS_BH(LINUX_MIB_TCPSLOWSTARTRETRANS);
- if (skb ==
- skb_peek(&sk->sk_write_queue))
+ if (skb == tcp_write_queue_head(sk))
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
inet_csk(sk)->icsk_rto,
TCP_RTO_MAX);
* segments to send.
*/
- if (tcp_may_send_now(sk, tp))
+ if (tcp_may_send_now(sk))
return;
if (tp->forward_skb_hint) {
skb = tp->forward_skb_hint;
packet_cnt = tp->forward_cnt_hint;
} else{
- skb = sk->sk_write_queue.next;
+ skb = tcp_write_queue_head(sk);
packet_cnt = 0;
}
- sk_stream_for_retrans_queue_from(skb, sk) {
+ tcp_for_write_queue_from(skb, sk) {
+ if (skb == tcp_send_head(sk))
+ break;
tp->forward_cnt_hint = packet_cnt;
tp->forward_skb_hint = skb;
break;
}
- if (skb == skb_peek(&sk->sk_write_queue))
+ if (skb == tcp_write_queue_head(sk))
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
inet_csk(sk)->icsk_rto,
TCP_RTO_MAX);
void tcp_send_fin(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
- struct sk_buff *skb = skb_peek_tail(&sk->sk_write_queue);
+ struct sk_buff *skb = tcp_write_queue_tail(sk);
int mss_now;
/* Optimization, tack on the FIN if we have a queue of
*/
mss_now = tcp_current_mss(sk, 1);
- if (sk->sk_send_head != NULL) {
+ if (tcp_send_head(sk) != NULL) {
TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_FIN;
TCP_SKB_CB(skb)->end_seq++;
tp->write_seq++;
TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq + 1;
tcp_queue_skb(sk, skb);
}
- __tcp_push_pending_frames(sk, tp, mss_now, TCP_NAGLE_OFF);
+ __tcp_push_pending_frames(sk, mss_now, TCP_NAGLE_OFF);
}
/* We get here when a process closes a file descriptor (either due to
*/
void tcp_send_active_reset(struct sock *sk, gfp_t priority)
{
- struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
/* NOTE: No TCP options attached and we never retransmit this. */
skb_shinfo(skb)->gso_type = 0;
/* Send it off. */
- TCP_SKB_CB(skb)->seq = tcp_acceptable_seq(sk, tp);
+ TCP_SKB_CB(skb)->seq = tcp_acceptable_seq(sk);
TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq;
TCP_SKB_CB(skb)->when = tcp_time_stamp;
if (tcp_transmit_skb(sk, skb, 0, priority))
{
struct sk_buff* skb;
- skb = skb_peek(&sk->sk_write_queue);
+ skb = tcp_write_queue_head(sk);
if (skb == NULL || !(TCP_SKB_CB(skb)->flags&TCPCB_FLAG_SYN)) {
printk(KERN_DEBUG "tcp_send_synack: wrong queue state\n");
return -EFAULT;
struct sk_buff *nskb = skb_copy(skb, GFP_ATOMIC);
if (nskb == NULL)
return -ENOMEM;
- __skb_unlink(skb, &sk->sk_write_queue);
+ tcp_unlink_write_queue(skb, sk);
skb_header_release(nskb);
- __skb_queue_head(&sk->sk_write_queue, nskb);
+ __tcp_add_write_queue_head(sk, nskb);
sk_stream_free_skb(sk, skb);
sk_charge_skb(sk, nskb);
skb = nskb;
if (md5)
tcp_header_size += TCPOLEN_MD5SIG_ALIGNED;
#endif
- skb->h.th = th = (struct tcphdr *) skb_push(skb, tcp_header_size);
+ skb_push(skb, tcp_header_size);
+ skb_reset_transport_header(skb);
+ th = tcp_hdr(skb);
memset(th, 0, sizeof(struct tcphdr));
th->syn = 1;
th->ack = 1;
tp->af_specific->calc_md5_hash(md5_hash_location,
md5,
NULL, dst, req,
- skb->h.th, sk->sk_protocol,
+ tcp_hdr(skb), sk->sk_protocol,
skb->len);
}
#endif
skb_reserve(buff, MAX_TCP_HEADER);
TCP_SKB_CB(buff)->flags = TCPCB_FLAG_SYN;
- TCP_ECN_send_syn(sk, tp, buff);
+ TCP_ECN_send_syn(sk, buff);
TCP_SKB_CB(buff)->sacked = 0;
skb_shinfo(buff)->gso_segs = 1;
skb_shinfo(buff)->gso_size = 0;
TCP_SKB_CB(buff)->when = tcp_time_stamp;
tp->retrans_stamp = TCP_SKB_CB(buff)->when;
skb_header_release(buff);
- __skb_queue_tail(&sk->sk_write_queue, buff);
+ __tcp_add_write_queue_tail(sk, buff);
sk_charge_skb(sk, buff);
tp->packets_out += tcp_skb_pcount(buff);
tcp_transmit_skb(sk, buff, 1, GFP_KERNEL);
{
/* If we have been reset, we may not send again. */
if (sk->sk_state != TCP_CLOSE) {
- struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *buff;
/* We are not putting this on the write queue, so
skb_shinfo(buff)->gso_type = 0;
/* Send it off, this clears delayed acks for us. */
- TCP_SKB_CB(buff)->seq = TCP_SKB_CB(buff)->end_seq = tcp_acceptable_seq(sk, tp);
+ TCP_SKB_CB(buff)->seq = TCP_SKB_CB(buff)->end_seq = tcp_acceptable_seq(sk);
TCP_SKB_CB(buff)->when = tcp_time_stamp;
tcp_transmit_skb(sk, buff, 0, GFP_ATOMIC);
}
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
- if ((skb = sk->sk_send_head) != NULL &&
+ if ((skb = tcp_send_head(sk)) != NULL &&
before(TCP_SKB_CB(skb)->seq, tp->snd_una+tp->snd_wnd)) {
int err;
unsigned int mss = tcp_current_mss(sk, 0);
TCP_SKB_CB(skb)->when = tcp_time_stamp;
err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
if (!err) {
- update_send_head(sk, tp, skb);
+ update_send_head(sk, skb);
}
return err;
} else {
err = tcp_write_wakeup(sk);
- if (tp->packets_out || !sk->sk_send_head) {
+ if (tp->packets_out || !tcp_send_head(sk)) {
/* Cancel probe timer, if it is not required. */
icsk->icsk_probes_out = 0;
icsk->icsk_backoff = 0;
#include <linux/proc_fs.h>
#include <linux/module.h>
#include <linux/kfifo.h>
+#include <linux/ktime.h>
+#include <linux/time.h>
#include <linux/vmalloc.h>
#include <net/tcp.h>
MODULE_DESCRIPTION("TCP cwnd snooper");
MODULE_LICENSE("GPL");
-static int port = 0;
+static int port __read_mostly = 0;
MODULE_PARM_DESC(port, "Port to match (0=all)");
module_param(port, int, 0);
-static int bufsize = 64*1024;
+static int bufsize __read_mostly = 64*1024;
MODULE_PARM_DESC(bufsize, "Log buffer size (default 64k)");
module_param(bufsize, int, 0);
+static int full __read_mostly;
+MODULE_PARM_DESC(full, "Full log (1=every ack packet received, 0=only cwnd changes)");
+module_param(full, int, 0);
+
static const char procname[] = "tcpprobe";
struct {
- struct kfifo *fifo;
- spinlock_t lock;
+ struct kfifo *fifo;
+ spinlock_t lock;
wait_queue_head_t wait;
- struct timeval tstart;
+ ktime_t start;
+ u32 lastcwnd;
} tcpw;
+/*
+ * Print to log with timestamps.
+ * FIXME: causes an extra copy
+ */
static void printl(const char *fmt, ...)
{
va_list args;
int len;
- struct timeval now;
+ struct timespec tv;
char tbuf[256];
va_start(args, fmt);
- do_gettimeofday(&now);
+ /* want monotonic time since start of tcp_probe */
+ tv = ktime_to_timespec(ktime_sub(ktime_get(), tcpw.start));
- now.tv_sec -= tcpw.tstart.tv_sec;
- now.tv_usec -= tcpw.tstart.tv_usec;
- if (now.tv_usec < 0) {
- --now.tv_sec;
- now.tv_usec += 1000000;
- }
-
- len = sprintf(tbuf, "%lu.%06lu ",
- (unsigned long) now.tv_sec,
- (unsigned long) now.tv_usec);
+ len = sprintf(tbuf, "%lu.%09lu ",
+ (unsigned long) tv.tv_sec, (unsigned long) tv.tv_nsec);
len += vscnprintf(tbuf+len, sizeof(tbuf)-len, fmt, args);
va_end(args);
wake_up(&tcpw.wait);
}
-static int jtcp_sendmsg(struct kiocb *iocb, struct sock *sk,
- struct msghdr *msg, size_t size)
+/*
+ * Hook inserted to be called before each receive packet.
+ * Note: arguments must match tcp_rcv_established()!
+ */
+static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
+ struct tcphdr *th, unsigned len)
{
const struct tcp_sock *tp = tcp_sk(sk);
const struct inet_sock *inet = inet_sk(sk);
- if (port == 0 || ntohs(inet->dport) == port ||
- ntohs(inet->sport) == port) {
+ /* Only update if port matches */
+ if ((port == 0 || ntohs(inet->dport) == port || ntohs(inet->sport) == port)
+ && (full || tp->snd_cwnd != tcpw.lastcwnd)) {
printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d %#x %#x %u %u %u\n",
NIPQUAD(inet->saddr), ntohs(inet->sport),
NIPQUAD(inet->daddr), ntohs(inet->dport),
- size, tp->snd_nxt, tp->snd_una,
+ skb->len, tp->snd_nxt, tp->snd_una,
tp->snd_cwnd, tcp_current_ssthresh(sk),
- tp->snd_wnd);
+ tp->snd_wnd, tp->srtt >> 3);
+ tcpw.lastcwnd = tp->snd_cwnd;
}
jprobe_return();
return 0;
}
-static struct jprobe tcp_send_probe = {
+static struct jprobe tcp_probe = {
.kp = {
- .symbol_name = "tcp_sendmsg",
+ .symbol_name = "tcp_rcv_established",
},
- .entry = JPROBE_ENTRY(jtcp_sendmsg),
+ .entry = JPROBE_ENTRY(jtcp_rcv_established),
};
static int tcpprobe_open(struct inode * inode, struct file * file)
{
kfifo_reset(tcpw.fifo);
- do_gettimeofday(&tcpw.tstart);
+ tcpw.start = ktime_get();
return 0;
}
if (!proc_net_fops_create(procname, S_IRUSR, &tcpprobe_fops))
goto err0;
- ret = register_jprobe(&tcp_send_probe);
+ ret = register_jprobe(&tcp_probe);
if (ret)
goto err1;
{
kfifo_free(tcpw.fifo);
proc_net_remove(procname);
- unregister_jprobe(&tcp_send_probe);
+ unregister_jprobe(&tcp_probe);
}
module_exit(tcpprobe_exit);
struct tcp_sock *tp = tcp_sk(sk);
int max_probes;
- if (tp->packets_out || !sk->sk_send_head) {
+ if (tp->packets_out || !tcp_send_head(sk)) {
icsk->icsk_probes_out = 0;
return;
}
if (!tp->packets_out)
goto out;
- BUG_TRAP(!skb_queue_empty(&sk->sk_write_queue));
+ BUG_TRAP(!tcp_write_queue_empty(sk));
if (!tp->snd_wnd && !sock_flag(sk, SOCK_DEAD) &&
!((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))) {
goto out;
}
tcp_enter_loss(sk, 0);
- tcp_retransmit_skb(sk, skb_peek(&sk->sk_write_queue));
+ tcp_retransmit_skb(sk, tcp_write_queue_head(sk));
__sk_dst_reset(sk);
goto out_reset_timer;
}
tcp_enter_loss(sk, 0);
}
- if (tcp_retransmit_skb(sk, skb_peek(&sk->sk_write_queue)) > 0) {
+ if (tcp_retransmit_skb(sk, tcp_write_queue_head(sk)) > 0) {
/* Retransmission failed because of local congestion,
* do not backoff.
*/
elapsed = keepalive_time_when(tp);
/* It is alive without keepalive 8) */
- if (tp->packets_out || sk->sk_send_head)
+ if (tp->packets_out || tcp_send_head(sk))
goto resched;
elapsed = tcp_time_stamp - tp->rcv_tstamp;
#include <net/tcp.h>
+#include "tcp_vegas.h"
+
/* Default values of the Vegas variables, in fixed-point representation
* with V_PARAM_SHIFT bits to the right of the binary point.
*/
MODULE_PARM_DESC(gamma, "limit on increase (scale by 2)");
-/* Vegas variables */
-struct vegas {
- u32 beg_snd_nxt; /* right edge during last RTT */
- u32 beg_snd_una; /* left edge during last RTT */
- u32 beg_snd_cwnd; /* saves the size of the cwnd */
- u8 doing_vegas_now;/* if true, do vegas for this RTT */
- u16 cntRTT; /* # of RTTs measured within last RTT */
- u32 minRTT; /* min of RTTs measured within last RTT (in usec) */
- u32 baseRTT; /* the min of all Vegas RTT measurements seen (in usec) */
-};
-
/* There are several situations when we must "re-start" Vegas:
*
* o when a connection is established
* Instead we must wait until the completion of an RTT during
* which we actually receive ACKs.
*/
-static inline void vegas_enable(struct sock *sk)
+static void vegas_enable(struct sock *sk)
{
const struct tcp_sock *tp = tcp_sk(sk);
struct vegas *vegas = inet_csk_ca(sk);
vegas->doing_vegas_now = 0;
}
-static void tcp_vegas_init(struct sock *sk)
+void tcp_vegas_init(struct sock *sk)
{
struct vegas *vegas = inet_csk_ca(sk);
vegas->baseRTT = 0x7fffffff;
vegas_enable(sk);
}
+EXPORT_SYMBOL_GPL(tcp_vegas_init);
/* Do RTT sampling needed for Vegas.
* Basically we:
* o min-filter RTT samples from a much longer window (forever for now)
* to find the propagation delay (baseRTT)
*/
-static void tcp_vegas_rtt_calc(struct sock *sk, u32 usrtt)
+void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, ktime_t last)
{
struct vegas *vegas = inet_csk_ca(sk);
- u32 vrtt = usrtt + 1; /* Never allow zero rtt or baseRTT */
+ u32 vrtt;
+
+ /* Never allow zero rtt or baseRTT */
+ vrtt = ktime_to_us(net_timedelta(last)) + 1;
/* Filter to find propagation delay: */
if (vrtt < vegas->baseRTT)
vegas->minRTT = min(vegas->minRTT, vrtt);
vegas->cntRTT++;
}
+EXPORT_SYMBOL_GPL(tcp_vegas_pkts_acked);
-static void tcp_vegas_state(struct sock *sk, u8 ca_state)
+void tcp_vegas_state(struct sock *sk, u8 ca_state)
{
if (ca_state == TCP_CA_Open)
else
vegas_disable(sk);
}
+EXPORT_SYMBOL_GPL(tcp_vegas_state);
/*
* If the connection is idle and we are restarting,
* packets, _then_ we can make Vegas calculations
* again.
*/
-static void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event)
+void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event)
{
if (event == CA_EVENT_CWND_RESTART ||
event == CA_EVENT_TX_START)
tcp_vegas_init(sk);
}
+EXPORT_SYMBOL_GPL(tcp_vegas_cwnd_event);
static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack,
u32 seq_rtt, u32 in_flight, int flag)
}
/* Extract info for Tcp socket info provided via netlink. */
-static void tcp_vegas_get_info(struct sock *sk, u32 ext,
- struct sk_buff *skb)
+void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
{
const struct vegas *ca = inet_csk_ca(sk);
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
- struct tcpvegas_info *info;
-
- info = RTA_DATA(__RTA_PUT(skb, INET_DIAG_VEGASINFO,
- sizeof(*info)));
-
- info->tcpv_enabled = ca->doing_vegas_now;
- info->tcpv_rttcnt = ca->cntRTT;
- info->tcpv_rtt = ca->baseRTT;
- info->tcpv_minrtt = ca->minRTT;
- rtattr_failure: ;
+ struct tcpvegas_info info = {
+ .tcpv_enabled = ca->doing_vegas_now,
+ .tcpv_rttcnt = ca->cntRTT,
+ .tcpv_rtt = ca->baseRTT,
+ .tcpv_minrtt = ca->minRTT,
+ };
+
+ nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
}
}
+EXPORT_SYMBOL_GPL(tcp_vegas_get_info);
static struct tcp_congestion_ops tcp_vegas = {
+ .flags = TCP_CONG_RTT_STAMP,
.init = tcp_vegas_init,
.ssthresh = tcp_reno_ssthresh,
.cong_avoid = tcp_vegas_cong_avoid,
.min_cwnd = tcp_reno_min_cwnd,
- .rtt_sample = tcp_vegas_rtt_calc,
+ .pkts_acked = tcp_vegas_pkts_acked,
.set_state = tcp_vegas_state,
.cwnd_event = tcp_vegas_cwnd_event,
.get_info = tcp_vegas_get_info,
--- /dev/null
+/*
+ * TCP Vegas congestion control interface
+ */
+#ifndef __TCP_VEGAS_H
+#define __TCP_VEGAS_H 1
+
+/* Vegas variables */
+struct vegas {
+ u32 beg_snd_nxt; /* right edge during last RTT */
+ u32 beg_snd_una; /* left edge during last RTT */
+ u32 beg_snd_cwnd; /* saves the size of the cwnd */
+ u8 doing_vegas_now;/* if true, do vegas for this RTT */
+ u16 cntRTT; /* # of RTTs measured within last RTT */
+ u32 minRTT; /* min of RTTs measured within last RTT (in usec) */
+ u32 baseRTT; /* the min of all Vegas RTT measurements seen (in usec) */
+};
+
+extern void tcp_vegas_init(struct sock *sk);
+extern void tcp_vegas_state(struct sock *sk, u8 ca_state);
+extern void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, ktime_t last);
+extern void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
+extern void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
+
+#endif /* __TCP_VEGAS_H */
}
/* Do rtt sampling needed for Veno. */
-static void tcp_veno_rtt_calc(struct sock *sk, u32 usrtt)
+static void tcp_veno_pkts_acked(struct sock *sk, u32 cnt, ktime_t last)
{
struct veno *veno = inet_csk_ca(sk);
- u32 vrtt = usrtt + 1; /* Never allow zero rtt or basertt */
+ u32 vrtt;
+
+ /* Never allow zero rtt or baseRTT */
+ vrtt = ktime_to_us(net_timedelta(last)) + 1;
/* Filter to find propagation delay: */
if (vrtt < veno->basertt)
}
static struct tcp_congestion_ops tcp_veno = {
+ .flags = TCP_CONG_RTT_STAMP,
.init = tcp_veno_init,
.ssthresh = tcp_veno_ssthresh,
.cong_avoid = tcp_veno_cong_avoid,
- .rtt_sample = tcp_veno_rtt_calc,
+ .pkts_acked = tcp_veno_pkts_acked,
.set_state = tcp_veno_state,
.cwnd_event = tcp_veno_cwnd_event,
* Called after processing group of packets.
* but all westwood needs is the last sample of srtt.
*/
-static void tcp_westwood_pkts_acked(struct sock *sk, u32 cnt)
+static void tcp_westwood_pkts_acked(struct sock *sk, u32 cnt, ktime_t last)
{
struct westwood *w = inet_csk_ca(sk);
if (cnt > 0)
struct tcp_sock *tp = tcp_sk(sk);
struct westwood *w = inet_csk_ca(sk);
- switch(event) {
+ switch (event) {
case CA_EVENT_FAST_ACK:
westwood_fast_bw(sk);
break;
{
const struct westwood *ca = inet_csk_ca(sk);
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
- struct rtattr *rta;
- struct tcpvegas_info *info;
-
- rta = __RTA_PUT(skb, INET_DIAG_VEGASINFO, sizeof(*info));
- info = RTA_DATA(rta);
- info->tcpv_enabled = 1;
- info->tcpv_rttcnt = 0;
- info->tcpv_rtt = jiffies_to_usecs(ca->rtt);
- info->tcpv_minrtt = jiffies_to_usecs(ca->rtt_min);
- rtattr_failure: ;
+ struct tcpvegas_info info = {
+ .tcpv_enabled = 1,
+ .tcpv_rtt = jiffies_to_usecs(ca->rtt),
+ .tcpv_minrtt = jiffies_to_usecs(ca->rtt_min),
+ };
+
+ nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
}
}
--- /dev/null
+/*
+ *
+ * YeAH TCP
+ *
+ * For further details look at:
+ * http://wil.cs.caltech.edu/pfldnet2007/paper/YeAH_TCP.pdf
+ *
+ */
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/inet_diag.h>
+
+#include <net/tcp.h>
+
+#include "tcp_vegas.h"
+
+#define TCP_YEAH_ALPHA 80 //lin number of packets queued at the bottleneck
+#define TCP_YEAH_GAMMA 1 //lin fraction of queue to be removed per rtt
+#define TCP_YEAH_DELTA 3 //log minimum fraction of cwnd to be removed on loss
+#define TCP_YEAH_EPSILON 1 //log maximum fraction to be removed on early decongestion
+#define TCP_YEAH_PHY 8 //lin maximum delta from base
+#define TCP_YEAH_RHO 16 //lin minumum number of consecutive rtt to consider competition on loss
+#define TCP_YEAH_ZETA 50 //lin minimum number of state switchs to reset reno_count
+
+#define TCP_SCALABLE_AI_CNT 100U
+
+/* YeAH variables */
+struct yeah {
+ struct vegas vegas; /* must be first */
+
+ /* YeAH */
+ u32 lastQ;
+ u32 doing_reno_now;
+
+ u32 reno_count;
+ u32 fast_count;
+
+ u32 pkts_acked;
+};
+
+static void tcp_yeah_init(struct sock *sk)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct yeah *yeah = inet_csk_ca(sk);
+
+ tcp_vegas_init(sk);
+
+ yeah->doing_reno_now = 0;
+ yeah->lastQ = 0;
+
+ yeah->reno_count = 2;
+
+ /* Ensure the MD arithmetic works. This is somewhat pedantic,
+ * since I don't think we will see a cwnd this large. :) */
+ tp->snd_cwnd_clamp = min_t(u32, tp->snd_cwnd_clamp, 0xffffffff/128);
+
+}
+
+
+static void tcp_yeah_pkts_acked(struct sock *sk, u32 pkts_acked, ktime_t last)
+{
+ const struct inet_connection_sock *icsk = inet_csk(sk);
+ struct yeah *yeah = inet_csk_ca(sk);
+
+ if (icsk->icsk_ca_state == TCP_CA_Open)
+ yeah->pkts_acked = pkts_acked;
+
+ tcp_vegas_pkts_acked(sk, pkts_acked, last);
+}
+
+static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack,
+ u32 seq_rtt, u32 in_flight, int flag)
+{
+ struct tcp_sock *tp = tcp_sk(sk);
+ struct yeah *yeah = inet_csk_ca(sk);
+
+ if (!tcp_is_cwnd_limited(sk, in_flight))
+ return;
+
+ if (tp->snd_cwnd <= tp->snd_ssthresh)
+ tcp_slow_start(tp);
+
+ else if (!yeah->doing_reno_now) {
+ /* Scalable */
+
+ tp->snd_cwnd_cnt+=yeah->pkts_acked;
+ if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)){
+ if (tp->snd_cwnd < tp->snd_cwnd_clamp)
+ tp->snd_cwnd++;
+ tp->snd_cwnd_cnt = 0;
+ }
+
+ yeah->pkts_acked = 1;
+
+ } else {
+ /* Reno */
+
+ if (tp->snd_cwnd_cnt < tp->snd_cwnd)
+ tp->snd_cwnd_cnt++;
+
+ if (tp->snd_cwnd_cnt >= tp->snd_cwnd) {
+ tp->snd_cwnd++;
+ tp->snd_cwnd_cnt = 0;
+ }
+ }
+
+ /* The key players are v_vegas.beg_snd_una and v_beg_snd_nxt.
+ *
+ * These are so named because they represent the approximate values
+ * of snd_una and snd_nxt at the beginning of the current RTT. More
+ * precisely, they represent the amount of data sent during the RTT.
+ * At the end of the RTT, when we receive an ACK for v_beg_snd_nxt,
+ * we will calculate that (v_beg_snd_nxt - v_vegas.beg_snd_una) outstanding
+ * bytes of data have been ACKed during the course of the RTT, giving
+ * an "actual" rate of:
+ *
+ * (v_beg_snd_nxt - v_vegas.beg_snd_una) / (rtt duration)
+ *
+ * Unfortunately, v_vegas.beg_snd_una is not exactly equal to snd_una,
+ * because delayed ACKs can cover more than one segment, so they
+ * don't line up yeahly with the boundaries of RTTs.
+ *
+ * Another unfortunate fact of life is that delayed ACKs delay the
+ * advance of the left edge of our send window, so that the number
+ * of bytes we send in an RTT is often less than our cwnd will allow.
+ * So we keep track of our cwnd separately, in v_beg_snd_cwnd.
+ */
+
+ if (after(ack, yeah->vegas.beg_snd_nxt)) {
+
+ /* We do the Vegas calculations only if we got enough RTT
+ * samples that we can be reasonably sure that we got
+ * at least one RTT sample that wasn't from a delayed ACK.
+ * If we only had 2 samples total,
+ * then that means we're getting only 1 ACK per RTT, which
+ * means they're almost certainly delayed ACKs.
+ * If we have 3 samples, we should be OK.
+ */
+
+ if (yeah->vegas.cntRTT > 2) {
+ u32 rtt, queue;
+ u64 bw;
+
+ /* We have enough RTT samples, so, using the Vegas
+ * algorithm, we determine if we should increase or
+ * decrease cwnd, and by how much.
+ */
+
+ /* Pluck out the RTT we are using for the Vegas
+ * calculations. This is the min RTT seen during the
+ * last RTT. Taking the min filters out the effects
+ * of delayed ACKs, at the cost of noticing congestion
+ * a bit later.
+ */
+ rtt = yeah->vegas.minRTT;
+
+ /* Compute excess number of packets above bandwidth
+ * Avoid doing full 64 bit divide.
+ */
+ bw = tp->snd_cwnd;
+ bw *= rtt - yeah->vegas.baseRTT;
+ do_div(bw, rtt);
+ queue = bw;
+
+ if (queue > TCP_YEAH_ALPHA ||
+ rtt - yeah->vegas.baseRTT > (yeah->vegas.baseRTT / TCP_YEAH_PHY)) {
+ if (queue > TCP_YEAH_ALPHA
+ && tp->snd_cwnd > yeah->reno_count) {
+ u32 reduction = min(queue / TCP_YEAH_GAMMA ,
+ tp->snd_cwnd >> TCP_YEAH_EPSILON);
+
+ tp->snd_cwnd -= reduction;
+
+ tp->snd_cwnd = max(tp->snd_cwnd,
+ yeah->reno_count);
+
+ tp->snd_ssthresh = tp->snd_cwnd;
+ }
+
+ if (yeah->reno_count <= 2)
+ yeah->reno_count = max(tp->snd_cwnd>>1, 2U);
+ else
+ yeah->reno_count++;
+
+ yeah->doing_reno_now = min(yeah->doing_reno_now + 1,
+ 0xffffffU);
+ } else {
+ yeah->fast_count++;
+
+ if (yeah->fast_count > TCP_YEAH_ZETA) {
+ yeah->reno_count = 2;
+ yeah->fast_count = 0;
+ }
+
+ yeah->doing_reno_now = 0;
+ }
+
+ yeah->lastQ = queue;
+
+ }
+
+ /* Save the extent of the current window so we can use this
+ * at the end of the next RTT.
+ */
+ yeah->vegas.beg_snd_una = yeah->vegas.beg_snd_nxt;
+ yeah->vegas.beg_snd_nxt = tp->snd_nxt;
+ yeah->vegas.beg_snd_cwnd = tp->snd_cwnd;
+
+ /* Wipe the slate clean for the next RTT. */
+ yeah->vegas.cntRTT = 0;
+ yeah->vegas.minRTT = 0x7fffffff;
+ }
+}
+
+static u32 tcp_yeah_ssthresh(struct sock *sk) {
+ const struct tcp_sock *tp = tcp_sk(sk);
+ struct yeah *yeah = inet_csk_ca(sk);
+ u32 reduction;
+
+ if (yeah->doing_reno_now < TCP_YEAH_RHO) {
+ reduction = yeah->lastQ;
+
+ reduction = min( reduction, max(tp->snd_cwnd>>1, 2U) );
+
+ reduction = max( reduction, tp->snd_cwnd >> TCP_YEAH_DELTA);
+ } else
+ reduction = max(tp->snd_cwnd>>1,2U);
+
+ yeah->fast_count = 0;
+ yeah->reno_count = max(yeah->reno_count>>1, 2U);
+
+ return tp->snd_cwnd - reduction;
+}
+
+static struct tcp_congestion_ops tcp_yeah = {
+ .flags = TCP_CONG_RTT_STAMP,
+ .init = tcp_yeah_init,
+ .ssthresh = tcp_yeah_ssthresh,
+ .cong_avoid = tcp_yeah_cong_avoid,
+ .min_cwnd = tcp_reno_min_cwnd,
+ .set_state = tcp_vegas_state,
+ .cwnd_event = tcp_vegas_cwnd_event,
+ .get_info = tcp_vegas_get_info,
+ .pkts_acked = tcp_yeah_pkts_acked,
+
+ .owner = THIS_MODULE,
+ .name = "yeah",
+};
+
+static int __init tcp_yeah_register(void)
+{
+ BUG_ON(sizeof(struct yeah) > ICSK_CA_PRIV_SIZE);
+ tcp_register_congestion_control(&tcp_yeah);
+ return 0;
+}
+
+static void __exit tcp_yeah_unregister(void)
+{
+ tcp_unregister_congestion_control(&tcp_yeah);
+}
+
+module_init(tcp_yeah_register);
+module_exit(tcp_yeah_unregister);
+
+MODULE_AUTHOR("Angelo P. Castellani");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("YeAH TCP");
--- /dev/null
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/inet_diag.h>
+#include <asm/div64.h>
+
+#include <net/tcp.h>
;
}
result = best;
- for(i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++, result += UDP_HTABLE_SIZE) {
+ for (i = 0; i < (1 << 16) / UDP_HTABLE_SIZE;
+ i++, result += UDP_HTABLE_SIZE) {
if (result > sysctl_local_port_range[1])
result = sysctl_local_port_range[0]
+ ((result - sysctl_local_port_range[0]) &
return error;
}
-__inline__ int udp_get_port(struct sock *sk, unsigned short snum,
+int udp_get_port(struct sock *sk, unsigned short snum,
int (*scmp)(const struct sock *, const struct sock *))
{
return __udp_lib_get_port(sk, snum, udp_hash, &udp_port_rover, scmp);
}
-inline int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
+int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
{
struct inet_sock *inet1 = inet_sk(sk1), *inet2 = inet_sk(sk2);
continue;
score+=2;
}
- if(score == 9) {
+ if (score == 9) {
result = sk;
break;
- } else if(score > badness) {
+ } else if (score > badness) {
result = sk;
badness = score;
}
struct inet_sock *inet;
struct iphdr *iph = (struct iphdr*)skb->data;
struct udphdr *uh = (struct udphdr*)(skb->data+(iph->ihl<<2));
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct sock *sk;
int harderr;
int err;
sock_put(sk);
}
-__inline__ void udp_err(struct sk_buff *skb, u32 info)
+void udp_err(struct sk_buff *skb, u32 info)
{
return __udp4_lib_err(skb, info, udp_hash);
}
__be32 src, __be32 dst, int len )
{
unsigned int offset;
- struct udphdr *uh = skb->h.uh;
+ struct udphdr *uh = udp_hdr(skb);
__wsum csum = 0;
if (skb_queue_len(&sk->sk_write_queue) == 1) {
/*
* Only one fragment on the socket.
*/
+ skb->csum_start = skb_transport_header(skb) - skb->head;
skb->csum_offset = offsetof(struct udphdr, check);
uh->check = ~csum_tcpudp_magic(src, dst, len, IPPROTO_UDP, 0);
} else {
* fragments on the socket so that all csums of sk_buffs
* should be together
*/
- offset = skb->h.raw - skb->data;
+ offset = skb_transport_offset(skb);
skb->csum = skb_checksum(skb, offset, skb->len - offset, 0);
skb->ip_summed = CHECKSUM_NONE;
/*
* Create a UDP header
*/
- uh = skb->h.uh;
+ uh = udp_hdr(skb);
uh->source = fl->fl_ip_sport;
uh->dest = fl->fl_ip_dport;
uh->len = htons(up->len);
int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
- switch(cmd)
+ switch (cmd) {
+ case SIOCOUTQ:
{
- case SIOCOUTQ:
- {
- int amount = atomic_read(&sk->sk_wmem_alloc);
- return put_user(amount, (int __user *)arg);
- }
+ int amount = atomic_read(&sk->sk_wmem_alloc);
+ return put_user(amount, (int __user *)arg);
+ }
- case SIOCINQ:
- {
- struct sk_buff *skb;
- unsigned long amount;
-
- amount = 0;
- spin_lock_bh(&sk->sk_receive_queue.lock);
- skb = skb_peek(&sk->sk_receive_queue);
- if (skb != NULL) {
- /*
- * We will only return the amount
- * of this packet since that is all
- * that will be read.
- */
- amount = skb->len - sizeof(struct udphdr);
- }
- spin_unlock_bh(&sk->sk_receive_queue.lock);
- return put_user(amount, (int __user *)arg);
+ case SIOCINQ:
+ {
+ struct sk_buff *skb;
+ unsigned long amount;
+
+ amount = 0;
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ skb = skb_peek(&sk->sk_receive_queue);
+ if (skb != NULL) {
+ /*
+ * We will only return the amount
+ * of this packet since that is all
+ * that will be read.
+ */
+ amount = skb->len - sizeof(struct udphdr);
}
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ return put_user(amount, (int __user *)arg);
+ }
- default:
- return -ENOIOCTLCMD;
+ default:
+ return -ENOIOCTLCMD;
}
- return(0);
+
+ return 0;
}
/*
struct inet_sock *inet = inet_sk(sk);
struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
struct sk_buff *skb;
- int copied, err, copy_only, is_udplite = IS_UDPLITE(sk);
+ unsigned int ulen, copied;
+ int err;
+ int is_udplite = IS_UDPLITE(sk);
/*
* Check any passed addresses
if (!skb)
goto out;
- copied = skb->len - sizeof(struct udphdr);
- if (copied > len) {
- copied = len;
+ ulen = skb->len - sizeof(struct udphdr);
+ copied = len;
+ if (copied > ulen)
+ copied = ulen;
+ else if (copied < ulen)
msg->msg_flags |= MSG_TRUNC;
- }
/*
- * Decide whether to checksum and/or copy data.
- *
- * UDP: checksum may have been computed in HW,
- * (re-)compute it if message is truncated.
- * UDP-Lite: always needs to checksum, no HW support.
+ * If checksum is needed at all, try to do it while copying the
+ * data. If the data is truncated, or if we only want a partial
+ * coverage checksum (UDP-Lite), do it before the copy.
*/
- copy_only = (skb->ip_summed==CHECKSUM_UNNECESSARY);
- if (is_udplite || (!copy_only && msg->msg_flags&MSG_TRUNC)) {
- if (__udp_lib_checksum_complete(skb))
+ if (copied < ulen || UDP_SKB_CB(skb)->partial_cov) {
+ if (udp_lib_checksum_complete(skb))
goto csum_copy_err;
- copy_only = 1;
}
- if (copy_only)
+ if (skb_csum_unnecessary(skb))
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr),
msg->msg_iov, copied );
else {
if (sin)
{
sin->sin_family = AF_INET;
- sin->sin_port = skb->h.uh->source;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_port = udp_hdr(skb)->source;
+ sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
}
if (inet->cmsg_flags)
err = copied;
if (flags & MSG_TRUNC)
- err = skb->len - sizeof(struct udphdr);
+ err = ulen;
out_free:
skb_free_datagram(sk, skb);
return 1;
/* Now we can get the pointers */
- uh = skb->h.uh;
+ uh = udp_hdr(skb);
udpdata = (__u8 *)uh + sizeof(struct udphdr);
udpdata32 = (__be32 *)udpdata;
/* Check if this is a keepalive packet. If so, eat it. */
if (len == 1 && udpdata[0] == 0xff) {
return 0;
- } else if (len > sizeof(struct ip_esp_hdr) && udpdata32[0] != 0 ) {
+ } else if (len > sizeof(struct ip_esp_hdr) && udpdata32[0] != 0) {
/* ESP Packet without Non-ESP header */
len = sizeof(struct udphdr);
} else
return 0;
/* Now we can update and verify the packet length... */
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iphlen = iph->ihl << 2;
iph->tot_len = htons(ntohs(iph->tot_len) - len);
if (skb->len < iphlen + len) {
* transport header to point to ESP. Keep UDP on the stack
* for later.
*/
- skb->h.raw = skb_pull(skb, len);
+ __skb_pull(skb, len);
+ skb_reset_transport_header(skb);
/* modify the protocol (it's ESP!) */
iph->protocol = IPPROTO_ESP;
}
}
- if (sk->sk_filter && skb->ip_summed != CHECKSUM_UNNECESSARY) {
- if (__udp_lib_checksum_complete(skb))
+ if (sk->sk_filter) {
+ if (udp_lib_checksum_complete(skb))
goto drop;
- skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
sknext = udp_v4_mcast_next(sk_next(sk), uh->dest, daddr,
uh->source, saddr, dif);
- if(sknext)
+ if (sknext)
skb1 = skb_clone(skb, GFP_ATOMIC);
- if(skb1) {
+ if (skb1) {
int ret = udp_queue_rcv_skb(sk, skb1);
if (ret > 0)
/* we should probably re-process instead
kfree_skb(skb1);
}
sk = sknext;
- } while(sknext);
+ } while (sknext);
} else
kfree_skb(skb);
read_unlock(&udp_hash_lock);
* Otherwise, csum completion requires chacksumming packet body,
* including udp header and folding it to skb->csum.
*/
-static inline void udp4_csum_init(struct sk_buff *skb, struct udphdr *uh)
+static inline int udp4_csum_init(struct sk_buff *skb, struct udphdr *uh,
+ int proto)
{
+ const struct iphdr *iph;
+ int err;
+
+ UDP_SKB_CB(skb)->partial_cov = 0;
+ UDP_SKB_CB(skb)->cscov = skb->len;
+
+ if (proto == IPPROTO_UDPLITE) {
+ err = udplite_checksum_init(skb, uh);
+ if (err)
+ return err;
+ }
+
+ iph = ip_hdr(skb);
if (uh->check == 0) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else if (skb->ip_summed == CHECKSUM_COMPLETE) {
- if (!csum_tcpudp_magic(skb->nh.iph->saddr, skb->nh.iph->daddr,
- skb->len, IPPROTO_UDP, skb->csum ))
+ if (!csum_tcpudp_magic(iph->saddr, iph->daddr, skb->len,
+ proto, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
- if (skb->ip_summed != CHECKSUM_UNNECESSARY)
- skb->csum = csum_tcpudp_nofold(skb->nh.iph->saddr,
- skb->nh.iph->daddr,
- skb->len, IPPROTO_UDP, 0);
+ if (!skb_csum_unnecessary(skb))
+ skb->csum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
+ skb->len, proto, 0);
/* Probably, we should checksum udp header (it should be in cache
* in any case) and data in tiny packets (< rx copybreak).
*/
- /* UDP = UDP-Lite with a non-partial checksum coverage */
- UDP_SKB_CB(skb)->partial_cov = 0;
+ return 0;
}
/*
*/
int __udp4_lib_rcv(struct sk_buff *skb, struct hlist_head udptable[],
- int is_udplite)
+ int proto)
{
struct sock *sk;
- struct udphdr *uh = skb->h.uh;
+ struct udphdr *uh = udp_hdr(skb);
unsigned short ulen;
struct rtable *rt = (struct rtable*)skb->dst;
- __be32 saddr = skb->nh.iph->saddr;
- __be32 daddr = skb->nh.iph->daddr;
+ __be32 saddr = ip_hdr(skb)->saddr;
+ __be32 daddr = ip_hdr(skb)->daddr;
/*
* Validate the packet.
if (ulen > skb->len)
goto short_packet;
- if(! is_udplite ) { /* UDP validates ulen. */
-
+ if (proto == IPPROTO_UDP) {
+ /* UDP validates ulen. */
if (ulen < sizeof(*uh) || pskb_trim_rcsum(skb, ulen))
goto short_packet;
- uh = skb->h.uh;
-
- udp4_csum_init(skb, uh);
-
- } else { /* UDP-Lite validates cscov. */
- if (udplite4_csum_init(skb, uh))
- goto csum_error;
+ uh = udp_hdr(skb);
}
- if(rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
+ if (udp4_csum_init(skb, uh, proto))
+ goto csum_error;
+
+ if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
return __udp4_lib_mcast_deliver(skb, uh, saddr, daddr, udptable);
sk = __udp4_lib_lookup(saddr, uh->source, daddr, uh->dest,
if (udp_lib_checksum_complete(skb))
goto csum_error;
- UDP_INC_STATS_BH(UDP_MIB_NOPORTS, is_udplite);
+ UDP_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
/*
* don't wanna listen. Ignore it.
*/
kfree_skb(skb);
- return(0);
+ return 0;
short_packet:
LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From %u.%u.%u.%u:%u %d/%d to %u.%u.%u.%u:%u\n",
- is_udplite? "-Lite" : "",
+ proto == IPPROTO_UDPLITE ? "-Lite" : "",
NIPQUAD(saddr),
ntohs(uh->source),
ulen,
* the network is concerned, anyway) as per 4.1.3.4 (MUST).
*/
LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From %d.%d.%d.%d:%d to %d.%d.%d.%d:%d ulen %d\n",
- is_udplite? "-Lite" : "",
+ proto == IPPROTO_UDPLITE ? "-Lite" : "",
NIPQUAD(saddr),
ntohs(uh->source),
NIPQUAD(daddr),
ntohs(uh->dest),
ulen);
drop:
- UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
+ UDP_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
kfree_skb(skb);
- return(0);
+ return 0;
}
-__inline__ int udp_rcv(struct sk_buff *skb)
+int udp_rcv(struct sk_buff *skb)
{
- return __udp4_lib_rcv(skb, udp_hash, 0);
+ return __udp4_lib_rcv(skb, udp_hash, IPPROTO_UDP);
}
int udp_destroy_sock(struct sock *sk)
int val;
int err = 0;
- if(optlen<sizeof(int))
+ if (optlen<sizeof(int))
return -EINVAL;
if (get_user(val, (int __user *)optval))
return -EFAULT;
- switch(optname) {
+ switch (optname) {
case UDP_CORK:
if (val != 0) {
up->corkflag = 1;
default:
err = -ENOPROTOOPT;
break;
- };
+ }
return err;
}
struct udp_sock *up = udp_sk(sk);
int val, len;
- if(get_user(len,optlen))
+ if (get_user(len,optlen))
return -EFAULT;
len = min_t(unsigned int, len, sizeof(int));
- if(len < 0)
+ if (len < 0)
return -EINVAL;
- switch(optname) {
+ switch (optname) {
case UDP_CORK:
val = up->corkflag;
break;
default:
return -ENOPROTOOPT;
- };
+ }
- if(put_user(len, optlen))
+ if (put_user(len, optlen))
return -EFAULT;
- if(copy_to_user(optval, &val,len))
+ if (copy_to_user(optval, &val,len))
return -EFAULT;
return 0;
}
struct sk_buff *skb;
spin_lock_bh(&rcvq->lock);
- while ((skb = skb_peek(rcvq)) != NULL) {
- if (udp_lib_checksum_complete(skb)) {
- UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_lite);
- __skb_unlink(skb, rcvq);
- kfree_skb(skb);
- } else {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- break;
- }
+ while ((skb = skb_peek(rcvq)) != NULL &&
+ udp_lib_checksum_complete(skb)) {
+ UDP_INC_STATS_BH(UDP_MIB_INERRORS, is_lite);
+ __skb_unlink(skb, rcvq);
+ kfree_skb(skb);
}
spin_unlock_bh(&rcvq->lock);
struct sock *sk = udp_get_first(seq);
if (sk)
- while(pos && (sk = udp_get_next(seq, sk)) != NULL)
+ while (pos && (sk = udp_get_next(seq, sk)) != NULL)
--pos;
return pos ? NULL : sk;
}
static int udplite_rcv(struct sk_buff *skb)
{
- return __udp4_lib_rcv(skb, udplite_hash, 1);
+ return __udp4_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);
}
static void udplite_err(struct sk_buff *skb, u32 info)
switch (nexthdr) {
case IPPROTO_IPIP:
case IPPROTO_IPV6:
- *spi = skb->nh.iph->saddr;
+ *spi = ip_hdr(skb)->saddr;
*seq = 0;
return 0;
}
#ifdef CONFIG_NETFILTER
static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb)
{
- struct iphdr *iph = skb->nh.iph;
-
if (skb->dst == NULL) {
+ const struct iphdr *iph = ip_hdr(skb);
+
if (ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
skb->dev))
goto drop;
int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type)
{
- int err;
__be32 spi, seq;
struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH];
struct xfrm_state *x;
int xfrm_nr = 0;
int decaps = 0;
+ int err = xfrm4_parse_spi(skb, ip_hdr(skb)->protocol, &spi, &seq);
- if ((err = xfrm4_parse_spi(skb, skb->nh.iph->protocol, &spi, &seq)) != 0)
+ if (err != 0)
goto drop;
do {
- struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
if (xfrm_nr == XFRM_MAX_DEPTH)
goto drop;
break;
}
- if ((err = xfrm_parse_spi(skb, skb->nh.iph->protocol, &spi, &seq)) < 0)
+ err = xfrm_parse_spi(skb, ip_hdr(skb)->protocol, &spi, &seq);
+ if (err < 0)
goto drop;
} while (!err);
return 0;
} else {
#ifdef CONFIG_NETFILTER
- __skb_push(skb, skb->data - skb->nh.raw);
- skb->nh.iph->tot_len = htons(skb->len);
- ip_send_check(skb->nh.iph);
+ __skb_push(skb, skb->data - skb_network_header(skb));
+ ip_hdr(skb)->tot_len = htons(skb->len);
+ ip_send_check(ip_hdr(skb));
NF_HOOK(PF_INET, NF_IP_PRE_ROUTING, skb, skb->dev, NULL,
xfrm4_rcv_encap_finish);
return 0;
#else
- return -skb->nh.iph->protocol;
+ return -ip_hdr(skb)->protocol;
#endif
}
*/
static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph, *top_iph = NULL;
+ struct iphdr *iph, *top_iph;
int hdrlen, optlen;
- iph = skb->nh.iph;
- skb->h.ipiph = iph;
+ iph = ip_hdr(skb);
+ skb->transport_header = skb->network_header;
hdrlen = 0;
optlen = iph->ihl * 4 - sizeof(*iph);
if (unlikely(optlen))
hdrlen += IPV4_BEET_PHMAXLEN - (optlen & 4);
- skb->nh.raw = skb_push(skb, x->props.header_len + hdrlen);
- top_iph = skb->nh.iph;
- skb->h.raw += sizeof(*iph) - hdrlen;
+ skb_push(skb, x->props.header_len - IPV4_BEET_PHMAXLEN + hdrlen);
+ skb_reset_network_header(skb);
+ top_iph = ip_hdr(skb);
+ skb->transport_header += sizeof(*iph) - hdrlen;
memmove(top_iph, iph, sizeof(*iph));
if (unlikely(optlen)) {
BUG_ON(optlen < 0);
- ph = (struct ip_beet_phdr *)skb->h.raw;
+ ph = (struct ip_beet_phdr *)skb_transport_header(skb);
ph->padlen = 4 - (optlen & 4);
- ph->hdrlen = (optlen + ph->padlen + sizeof(*ph)) / 8;
+ ph->hdrlen = optlen / 8;
ph->nexthdr = top_iph->protocol;
if (ph->padlen)
memset(ph + 1, IPOPT_NOP, ph->padlen);
static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
int phlen = 0;
int optlen = 0;
- __u8 ph_nexthdr = 0, protocol = 0;
+ u8 ph_nexthdr = 0;
int err = -EINVAL;
- protocol = iph->protocol;
-
if (unlikely(iph->protocol == IPPROTO_BEETPH)) {
struct ip_beet_phdr *ph;
if (!pskb_may_pull(skb, sizeof(*ph)))
goto out;
- ph = (struct ip_beet_phdr *)(skb->h.ipiph + 1);
+ ph = (struct ip_beet_phdr *)(ipip_hdr(skb) + 1);
phlen = sizeof(*ph) + ph->padlen;
- optlen = ph->hdrlen * 8 - phlen;
+ optlen = ph->hdrlen * 8 + (IPV4_BEET_PHMAXLEN - phlen);
if (optlen < 0 || optlen & 3 || optlen > 250)
goto out;
ph_nexthdr = ph->nexthdr;
}
- skb->nh.raw = skb->data + (phlen - sizeof(*iph));
- memmove(skb->nh.raw, iph, sizeof(*iph));
- skb->h.raw = skb->data + (phlen + optlen);
- skb->data = skb->h.raw;
+ skb_set_network_header(skb, phlen - sizeof(*iph));
+ memmove(skb_network_header(skb), iph, sizeof(*iph));
+ skb_set_transport_header(skb, phlen + optlen);
+ skb->data = skb_transport_header(skb);
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->ihl = (sizeof(*iph) + optlen) / 4;
iph->tot_len = htons(skb->len + iph->ihl * 4);
iph->daddr = x->sel.daddr.a4;
iph->saddr = x->sel.saddr.a4;
if (ph_nexthdr)
iph->protocol = ph_nexthdr;
- else
- iph->protocol = protocol;
iph->check = 0;
- iph->check = ip_fast_csum(skb->nh.raw, iph->ihl);
+ iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
err = 0;
out:
return err;
*/
static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph;
- int ihl;
+ struct iphdr *iph = ip_hdr(skb);
+ int ihl = iph->ihl * 4;
- iph = skb->nh.iph;
- skb->h.ipiph = iph;
-
- ihl = iph->ihl * 4;
- skb->h.raw += ihl;
-
- skb->nh.raw = memmove(skb_push(skb, x->props.header_len), iph, ihl);
+ skb->transport_header = skb->network_header + ihl;
+ skb_push(skb, x->props.header_len);
+ skb_reset_network_header(skb);
+ memmove(skb_network_header(skb), iph, ihl);
return 0;
}
*/
static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb)
{
- int ihl = skb->data - skb->h.raw;
+ int ihl = skb->data - skb_transport_header(skb);
- if (skb->h.raw != skb->nh.raw)
- skb->nh.raw = memmove(skb->h.raw, skb->nh.raw, ihl);
- skb->nh.iph->tot_len = htons(skb->len + ihl);
- skb->h.raw = skb->data;
+ if (skb->transport_header != skb->network_header) {
+ memmove(skb_transport_header(skb),
+ skb_network_header(skb), ihl);
+ skb->network_header = skb->transport_header;
+ }
+ ip_hdr(skb)->tot_len = htons(skb->len + ihl);
+ skb_reset_transport_header(skb);
return 0;
}
static inline void ipip_ecn_decapsulate(struct sk_buff *skb)
{
- struct iphdr *outer_iph = skb->nh.iph;
- struct iphdr *inner_iph = skb->h.ipiph;
+ struct iphdr *outer_iph = ip_hdr(skb);
+ struct iphdr *inner_iph = ipip_hdr(skb);
if (INET_ECN_is_ce(outer_iph->tos))
IP_ECN_set_ce(inner_iph);
static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
{
if (INET_ECN_is_ce(iph->tos))
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
/* Add encapsulation header.
struct iphdr *iph, *top_iph;
int flags;
- iph = skb->nh.iph;
- skb->h.ipiph = iph;
+ iph = ip_hdr(skb);
+ skb->transport_header = skb->network_header;
- skb->nh.raw = skb_push(skb, x->props.header_len);
- top_iph = skb->nh.iph;
+ skb_push(skb, x->props.header_len);
+ skb_reset_network_header(skb);
+ top_iph = ip_hdr(skb);
top_iph->ihl = 5;
top_iph->version = 4;
static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
+ const unsigned char *old_mac;
int err = -EINVAL;
- switch(iph->protocol){
+ switch (iph->protocol){
case IPPROTO_IPIP:
break;
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
(err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
goto out;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
if (iph->protocol == IPPROTO_IPIP) {
if (x->props.flags & XFRM_STATE_DECAP_DSCP)
- ipv4_copy_dscp(iph, skb->h.ipiph);
+ ipv4_copy_dscp(iph, ipip_hdr(skb));
if (!(x->props.flags & XFRM_STATE_NOECN))
ipip_ecn_decapsulate(skb);
}
skb->protocol = htons(ETH_P_IPV6);
}
#endif
- skb->mac.raw = memmove(skb->data - skb->mac_len,
- skb->mac.raw, skb->mac_len);
- skb->nh.raw = skb->data;
+ old_mac = skb_mac_header(skb);
+ skb_set_mac_header(skb, -skb->mac_len);
+ memmove(skb_mac_header(skb), old_mac, skb->mac_len);
+ skb_reset_network_header(skb);
err = 0;
out:
{
int mtu, ret = 0;
struct dst_entry *dst;
- struct iphdr *iph = skb->nh.iph;
if (IPCB(skb)->flags & IPSKB_XFRM_TUNNEL_SIZE)
goto out;
IPCB(skb)->flags |= IPSKB_XFRM_TUNNEL_SIZE;
- if (!(iph->frag_off & htons(IP_DF)) || skb->local_df)
+ if (!(ip_hdr(skb)->frag_off & htons(IP_DF)) || skb->local_df)
goto out;
dst = skb->dst;
if (xfrm[i]->props.mode == XFRM_MODE_TUNNEL) {
unsigned short encap_family = xfrm[i]->props.family;
- switch(encap_family) {
+ switch (encap_family) {
case AF_INET:
fl_tunnel.fl4_dst = xfrm[i]->id.daddr.a4;
fl_tunnel.fl4_src = xfrm[i]->props.saddr.a4;
static void
_decode_session4(struct sk_buff *skb, struct flowi *fl)
{
- struct iphdr *iph = skb->nh.iph;
- u8 *xprth = skb->nh.raw + iph->ihl*4;
+ struct iphdr *iph = ip_hdr(skb);
+ u8 *xprth = skb_network_header(skb) + iph->ihl * 4;
memset(fl, 0, sizeof(struct flowi));
if (!(iph->frag_off & htons(IP_MF | IP_OFFSET))) {
default:
fl->fl_ipsec_spi = 0;
break;
- };
+ }
}
fl->proto = iph->protocol;
fl->fl4_dst = iph->daddr;
static int ipip_output(struct xfrm_state *x, struct sk_buff *skb)
{
- struct iphdr *iph;
+ struct iphdr *iph = ip_hdr(skb);
- iph = skb->nh.iph;
iph->tot_len = htons(skb->len);
ip_send_check(iph);
If unsure, say N.
+config IPV6_OPTIMISTIC_DAD
+ bool "IPv6: Enable RFC 4429 Optimistic DAD (EXPERIMENTAL)"
+ depends on IPV6 && EXPERIMENTAL
+ ---help---
+ This is experimental support for optimistic Duplicate
+ Address Detection. It allows for autoconfigured addresses
+ to be used more quickly.
+
+ If unsure, say N.
+
config INET6_AH
tristate "IPv6: AH transformation"
depends on IPV6
ipv6-objs := af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \
raw.o protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
- exthdrs.o sysctl_net_ipv6.o datagram.o proc.o \
- ip6_flowlabel.o ipv6_syms.o inet6_connection_sock.o
+ exthdrs.o sysctl_net_ipv6.o datagram.o \
+ ip6_flowlabel.o inet6_connection_sock.o
ipv6-$(CONFIG_XFRM) += xfrm6_policy.o xfrm6_state.o xfrm6_input.o \
xfrm6_output.o
ipv6-$(CONFIG_NETFILTER) += netfilter.o
ipv6-$(CONFIG_IPV6_MULTIPLE_TABLES) += fib6_rules.o
ipv6-$(CONFIG_IPV6_MIP6) += mip6.o
+ipv6-$(CONFIG_PROC_FS) += proc.o
ipv6-objs += $(ipv6-y)
#endif
#include <asm/uaccess.h>
+#include <asm/unaligned.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#endif
#endif
.proxy_ndp = 0,
+ .accept_source_route = 0, /* we do not accept RH0 by default. */
};
static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
#endif
#endif
.proxy_ndp = 0,
+ .accept_source_route = 0, /* we do not accept RH0 by default. */
};
/* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */
-#if 0
const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
-#endif
const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
static void addrconf_del_timer(struct inet6_ifaddr *ifp)
add_timer(&ifp->timer);
}
+static int snmp6_alloc_dev(struct inet6_dev *idev)
+{
+ int err = -ENOMEM;
+
+ if (!idev || !idev->dev)
+ return -EINVAL;
+
+ if (snmp_mib_init((void **)idev->stats.ipv6,
+ sizeof(struct ipstats_mib),
+ __alignof__(struct ipstats_mib)) < 0)
+ goto err_ip;
+ if (snmp_mib_init((void **)idev->stats.icmpv6,
+ sizeof(struct icmpv6_mib),
+ __alignof__(struct icmpv6_mib)) < 0)
+ goto err_icmp;
+
+ return 0;
+
+err_icmp:
+ snmp_mib_free((void **)idev->stats.ipv6);
+err_ip:
+ return err;
+}
+
+static int snmp6_free_dev(struct inet6_dev *idev)
+{
+ snmp_mib_free((void **)idev->stats.icmpv6);
+ snmp_mib_free((void **)idev->stats.ipv6);
+ return 0;
+}
+
/* Nobody refers to this device, we may destroy it. */
static void in6_dev_finish_destroy_rcu(struct rcu_head *head)
call_rcu(&idev->rcu, in6_dev_finish_destroy_rcu);
}
+EXPORT_SYMBOL(in6_dev_finish_destroy);
+
static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
{
struct inet6_dev *ndev;
ifa->rt = rt;
+ /*
+ * part one of RFC 4429, section 3.3
+ * We should not configure an address as
+ * optimistic if we do not yet know the link
+ * layer address of our nexhop router
+ */
+
+ if (rt->rt6i_nexthop == NULL)
+ ifa->flags &= ~IFA_F_OPTIMISTIC;
+
ifa->idev = idev;
in6_dev_hold(idev);
/* For caller */
int tmp_plen;
int ret = 0;
int max_addresses;
+ u32 addr_flags;
write_lock(&idev->lock);
if (ift) {
spin_unlock_bh(&ifp->lock);
write_unlock(&idev->lock);
+
+ addr_flags = IFA_F_TEMPORARY;
+ /* set in addrconf_prefix_rcv() */
+ if (ifp->flags & IFA_F_OPTIMISTIC)
+ addr_flags |= IFA_F_OPTIMISTIC;
+
ift = !max_addresses ||
ipv6_count_addresses(idev) < max_addresses ?
ipv6_add_addr(idev, &addr, tmp_plen,
- ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK, IFA_F_TEMPORARY) : NULL;
+ ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK,
+ addr_flags) : NULL;
if (!ift || IS_ERR(ift)) {
in6_ifa_put(ifp);
in6_dev_put(idev);
* - Tentative Address (RFC2462 section 5.4)
* - A tentative address is not considered
* "assigned to an interface" in the traditional
- * sense.
+ * sense, unless it is also flagged as optimistic.
* - Candidate Source Address (section 4)
* - In any case, anycast addresses, multicast
* addresses, and the unspecified address MUST
* NOT be included in a candidate set.
*/
- if (ifa->flags & IFA_F_TENTATIVE)
+ if ((ifa->flags & IFA_F_TENTATIVE) &&
+ (!(ifa->flags & IFA_F_OPTIMISTIC)))
continue;
if (unlikely(score.addr_type == IPV6_ADDR_ANY ||
score.addr_type & IPV6_ADDR_MULTICAST)) {
}
}
- /* Rule 3: Avoid deprecated address */
+ /* Rule 3: Avoid deprecated and optimistic addresses */
if (hiscore.rule < 3) {
if (ipv6_saddr_preferred(hiscore.addr_type) ||
- !(ifa_result->flags & IFA_F_DEPRECATED))
+ (((ifa_result->flags &
+ (IFA_F_DEPRECATED|IFA_F_OPTIMISTIC)) == 0)))
hiscore.attrs |= IPV6_SADDR_SCORE_PREFERRED;
hiscore.rule++;
}
if (ipv6_saddr_preferred(score.addr_type) ||
- !(ifa->flags & IFA_F_DEPRECATED)) {
+ (((ifa_result->flags &
+ (IFA_F_DEPRECATED|IFA_F_OPTIMISTIC)) == 0))) {
score.attrs |= IPV6_SADDR_SCORE_PREFERRED;
if (!(hiscore.attrs & IPV6_SADDR_SCORE_PREFERRED)) {
score.rule = 3;
return ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL, daddr, saddr);
}
+EXPORT_SYMBOL(ipv6_get_saddr);
-int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr)
+int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
+ unsigned char banned_flags)
{
struct inet6_dev *idev;
int err = -EADDRNOTAVAIL;
read_lock_bh(&idev->lock);
for (ifp=idev->addr_list; ifp; ifp=ifp->if_next) {
- if (ifp->scope == IFA_LINK && !(ifp->flags&IFA_F_TENTATIVE)) {
+ if (ifp->scope == IFA_LINK && !(ifp->flags & banned_flags)) {
ipv6_addr_copy(addr, &ifp->addr);
err = 0;
break;
return ifp != NULL;
}
+EXPORT_SYMBOL(ipv6_chk_addr);
+
static
int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev)
{
if (ifp == NULL && valid_lft) {
int max_addresses = in6_dev->cnf.max_addresses;
+ u32 addr_flags = 0;
+
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ if (in6_dev->cnf.optimistic_dad &&
+ !ipv6_devconf.forwarding)
+ addr_flags = IFA_F_OPTIMISTIC;
+#endif
/* Do not allow to create too much of autoconfigured
* addresses; this would be too easy way to crash kernel.
if (!max_addresses ||
ipv6_count_addresses(in6_dev) < max_addresses)
ifp = ipv6_add_addr(in6_dev, &addr, pinfo->prefix_len,
- addr_type&IPV6_ADDR_SCOPE_MASK, 0);
+ addr_type&IPV6_ADDR_SCOPE_MASK,
+ addr_flags);
if (!ifp || IS_ERR(ifp)) {
in6_dev_put(in6_dev);
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev,
jiffies_to_clock_t(valid_lft * HZ), flags);
+ /*
+ * Note that section 3.1 of RFC 4429 indicates
+ * that the Optimistic flag should not be set for
+ * manually configured addresses
+ */
addrconf_dad_start(ifp, 0);
in6_ifa_put(ifp);
addrconf_verify(0);
static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr)
{
struct inet6_ifaddr * ifp;
+ u32 addr_flags = IFA_F_PERMANENT;
- ifp = ipv6_add_addr(idev, addr, 64, IFA_LINK, IFA_F_PERMANENT);
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ if (idev->cnf.optimistic_dad &&
+ !ipv6_devconf.forwarding)
+ addr_flags |= IFA_F_OPTIMISTIC;
+#endif
+
+
+ ifp = ipv6_add_addr(idev, addr, 64, IFA_LINK, addr_flags);
if (!IS_ERR(ifp)) {
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, idev->dev, 0, 0);
addrconf_dad_start(ifp, 0);
{
struct in6_addr lladdr;
- if (!ipv6_get_lladdr(link_dev, &lladdr)) {
+ if (!ipv6_get_lladdr(link_dev, &lladdr, IFA_F_TENTATIVE)) {
addrconf_add_linklocal(idev, &lladdr);
return 0;
}
default:
addrconf_dev_config(dev);
break;
- };
+ }
if (idev) {
if (run_pending)
addrconf_dad_run(idev);
}
#endif
break;
- };
+ }
return NOTIFY_OK;
}
unsigned long rand_num;
struct inet6_dev *idev = ifp->idev;
- rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
+ if (ifp->flags & IFA_F_OPTIMISTIC)
+ rand_num = 0;
+ else
+ rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
+
ifp->probes = idev->cnf.dad_transmits;
addrconf_mod_timer(ifp, AC_DAD, rand_num);
}
if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
!(ifp->flags&IFA_F_TENTATIVE) ||
ifp->flags & IFA_F_NODAD) {
- ifp->flags &= ~IFA_F_TENTATIVE;
+ ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC);
spin_unlock_bh(&ifp->lock);
read_unlock_bh(&idev->lock);
addrconf_dad_stop(ifp);
return;
}
+
+ /*
+ * Optimistic nodes can start receiving
+ * Frames right away
+ */
+ if(ifp->flags & IFA_F_OPTIMISTIC)
+ ip6_ins_rt(ifp->rt);
+
addrconf_dad_kick(ifp);
spin_unlock_bh(&ifp->lock);
out:
* DAD was successful
*/
- ifp->flags &= ~IFA_F_TENTATIVE;
+ ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC);
spin_unlock_bh(&ifp->lock);
read_unlock_bh(&idev->lock);
s_idx = cb->args[0];
s_ip_idx = ip_idx = cb->args[1];
- read_lock(&dev_base_lock);
for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
if (idx < s_idx)
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
}
- read_unlock(&dev_base_lock);
cb->args[0] = idx;
cb->args[1] = ip_idx;
return skb->len;
#endif
#endif
array[DEVCONF_PROXY_NDP] = cnf->proxy_ndp;
+ array[DEVCONF_ACCEPT_SOURCE_ROUTE] = cnf->accept_source_route;
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ array[DEVCONF_OPTIMISTIC_DAD] = cnf->optimistic_dad;
+#endif
}
static inline size_t inet6_if_nlmsg_size(void)
nla_total_size(4) /* IFLA_INET6_FLAGS */
+ nla_total_size(sizeof(struct ifla_cacheinfo))
+ nla_total_size(DEVCONF_MAX * 4) /* IFLA_INET6_CONF */
+ + nla_total_size(IPSTATS_MIB_MAX * 8) /* IFLA_INET6_STATS */
+ + nla_total_size(ICMP6_MIB_MAX * 8) /* IFLA_INET6_ICMP6STATS */
);
}
+static inline void __snmp6_fill_stats(u64 *stats, void **mib, int items,
+ int bytes)
+{
+ int i;
+ int pad = bytes - sizeof(u64) * items;
+ BUG_ON(pad < 0);
+
+ /* Use put_unaligned() because stats may not be aligned for u64. */
+ put_unaligned(items, &stats[0]);
+ for (i = 1; i < items; i++)
+ put_unaligned(snmp_fold_field(mib, i), &stats[i]);
+
+ memset(&stats[items], 0, pad);
+}
+
+static void snmp6_fill_stats(u64 *stats, struct inet6_dev *idev, int attrtype,
+ int bytes)
+{
+ switch(attrtype) {
+ case IFLA_INET6_STATS:
+ __snmp6_fill_stats(stats, (void **)idev->stats.ipv6, IPSTATS_MIB_MAX, bytes);
+ break;
+ case IFLA_INET6_ICMP6STATS:
+ __snmp6_fill_stats(stats, (void **)idev->stats.icmpv6, ICMP6_MIB_MAX, bytes);
+ break;
+ }
+}
+
static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
u32 pid, u32 seq, int event, unsigned int flags)
{
struct net_device *dev = idev->dev;
- struct nlattr *conf;
+ struct nlattr *nla;
struct ifinfomsg *hdr;
struct nlmsghdr *nlh;
void *protoinfo;
ci.retrans_time = idev->nd_parms->retrans_time;
NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
- conf = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));
- if (conf == NULL)
+ nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32));
+ if (nla == NULL)
goto nla_put_failure;
- ipv6_store_devconf(&idev->cnf, nla_data(conf), nla_len(conf));
+ ipv6_store_devconf(&idev->cnf, nla_data(nla), nla_len(nla));
- /* XXX - Statistics/MC not implemented */
+ /* XXX - MC not implemented */
+
+ nla = nla_reserve(skb, IFLA_INET6_STATS, IPSTATS_MIB_MAX * sizeof(u64));
+ if (nla == NULL)
+ goto nla_put_failure;
+ snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_STATS, nla_len(nla));
+
+ nla = nla_reserve(skb, IFLA_INET6_ICMP6STATS, ICMP6_MIB_MAX * sizeof(u64));
+ if (nla == NULL)
+ goto nla_put_failure;
+ snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_ICMP6STATS, nla_len(nla));
nla_nest_end(skb, protoinfo);
return nlmsg_end(skb, nlh);
rtnl_set_sk_err(RTNLGRP_IPV6_PREFIX, err);
}
-static struct rtnetlink_link inet6_rtnetlink_table[RTM_NR_MSGTYPES] = {
- [RTM_GETLINK - RTM_BASE] = { .dumpit = inet6_dump_ifinfo, },
- [RTM_NEWADDR - RTM_BASE] = { .doit = inet6_rtm_newaddr, },
- [RTM_DELADDR - RTM_BASE] = { .doit = inet6_rtm_deladdr, },
- [RTM_GETADDR - RTM_BASE] = { .doit = inet6_rtm_getaddr,
- .dumpit = inet6_dump_ifaddr, },
- [RTM_GETMULTICAST - RTM_BASE] = { .dumpit = inet6_dump_ifmcaddr, },
- [RTM_GETANYCAST - RTM_BASE] = { .dumpit = inet6_dump_ifacaddr, },
- [RTM_NEWROUTE - RTM_BASE] = { .doit = inet6_rtm_newroute, },
- [RTM_DELROUTE - RTM_BASE] = { .doit = inet6_rtm_delroute, },
- [RTM_GETROUTE - RTM_BASE] = { .doit = inet6_rtm_getroute,
- .dumpit = inet6_dump_fib, },
-#ifdef CONFIG_IPV6_MULTIPLE_TABLES
- [RTM_GETRULE - RTM_BASE] = { .dumpit = fib6_rules_dump, },
-#endif
-};
-
static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
{
inet6_ifa_notify(event ? : RTM_NEWADDR, ifp);
switch (event) {
case RTM_NEWADDR:
- ip6_ins_rt(ifp->rt);
+ /*
+ * If the address was optimistic
+ * we inserted the route at the start of
+ * our DAD process, so we don't need
+ * to do it again
+ */
+ if (!(ifp->rt->rt6i_node))
+ ip6_ins_rt(ifp->rt);
if (ifp->idev->cnf.forwarding)
addrconf_join_anycast(ifp);
break;
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+ {
+ .ctl_name = NET_IPV6_ACCEPT_SOURCE_ROUTE,
+ .procname = "accept_source_route",
+ .data = &ipv6_devconf.accept_source_route,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "optimistic_dad",
+ .data = &ipv6_devconf.optimistic_dad,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+
+ },
+#endif
{
.ctl_name = 0, /* sentinel */
}
return atomic_notifier_chain_register(&inet6addr_chain, nb);
}
+EXPORT_SYMBOL(register_inet6addr_notifier);
+
int unregister_inet6addr_notifier(struct notifier_block *nb)
{
return atomic_notifier_chain_unregister(&inet6addr_chain,nb);
}
+EXPORT_SYMBOL(unregister_inet6addr_notifier);
+
/*
* Init / cleanup code
*/
register_netdevice_notifier(&ipv6_dev_notf);
addrconf_verify(0);
- rtnetlink_links[PF_INET6] = inet6_rtnetlink_table;
+
+ err = __rtnl_register(PF_INET6, RTM_GETLINK, NULL, inet6_dump_ifinfo);
+ if (err < 0)
+ goto errout;
+
+ /* Only the first call to __rtnl_register can fail */
+ __rtnl_register(PF_INET6, RTM_NEWADDR, inet6_rtm_newaddr, NULL);
+ __rtnl_register(PF_INET6, RTM_DELADDR, inet6_rtm_deladdr, NULL);
+ __rtnl_register(PF_INET6, RTM_GETADDR, inet6_rtm_getaddr, inet6_dump_ifaddr);
+ __rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL, inet6_dump_ifmcaddr);
+ __rtnl_register(PF_INET6, RTM_GETANYCAST, NULL, inet6_dump_ifacaddr);
+
#ifdef CONFIG_SYSCTL
addrconf_sysctl.sysctl_header =
register_sysctl_table(addrconf_sysctl.addrconf_root_dir);
#endif
return 0;
+errout:
+ unregister_netdevice_notifier(&ipv6_dev_notf);
+
+ return err;
}
void __exit addrconf_cleanup(void)
unregister_netdevice_notifier(&ipv6_dev_notf);
- rtnetlink_links[PF_INET6] = NULL;
#ifdef CONFIG_SYSCTL
addrconf_sysctl_unregister(&ipv6_devconf_dflt);
addrconf_sysctl_unregister(&ipv6_devconf);
int try_loading_module = 0;
int err;
+ if (sock->type != SOCK_RAW &&
+ sock->type != SOCK_DGRAM &&
+ !inet_ehash_secret)
+ build_ehash_secret();
+
/* Look for the requested type/protocol pair. */
answer = NULL;
lookup_protocol:
return err;
}
+EXPORT_SYMBOL(inet6_bind);
+
int inet6_release(struct socket *sock)
{
struct sock *sk = sock->sk;
return inet_release(sock);
}
+EXPORT_SYMBOL(inet6_release);
+
int inet6_destroy_sock(struct sock *sk)
{
struct ipv6_pinfo *np = inet6_sk(sk);
return(0);
}
+EXPORT_SYMBOL(inet6_getname);
+
int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
struct sock *sk = sock->sk;
case SIOCGSTAMP:
return sock_get_timestamp(sk, (struct timeval __user *)arg);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, (struct timespec __user *)arg);
+
case SIOCADDRT:
case SIOCDELRT:
return(0);
}
+EXPORT_SYMBOL(inet6_ioctl);
+
const struct proto_ops inet6_stream_ops = {
.family = PF_INET6,
.owner = THIS_MODULE,
goto out;
}
+EXPORT_SYMBOL(inet6_register_protosw);
+
void
inet6_unregister_protosw(struct inet_protosw *p)
{
}
}
+EXPORT_SYMBOL(inet6_unregister_protosw);
+
int inet6_sk_rebuild_header(struct sock *sk)
{
int err;
if (np->rxopt.all) {
if ((opt->hop && (np->rxopt.bits.hopopts ||
np->rxopt.bits.ohopopts)) ||
- ((IPV6_FLOWINFO_MASK & *(__be32*)skb->nh.raw) &&
+ ((IPV6_FLOWINFO_MASK &
+ *(__be32 *)skb_network_header(skb)) &&
np->rxopt.bits.rxflow) ||
(opt->srcrt && (np->rxopt.bits.srcrt ||
np->rxopt.bits.osrcrt)) ||
EXPORT_SYMBOL_GPL(ipv6_opt_accepted);
-int
-snmp6_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
-{
- if (ptr == NULL)
- return -EINVAL;
-
- ptr[0] = __alloc_percpu(mibsize);
- if (!ptr[0])
- goto err0;
-
- ptr[1] = __alloc_percpu(mibsize);
- if (!ptr[1])
- goto err1;
-
- return 0;
-
-err1:
- free_percpu(ptr[0]);
- ptr[0] = NULL;
-err0:
- return -ENOMEM;
-}
-
-void
-snmp6_mib_free(void *ptr[2])
-{
- if (ptr == NULL)
- return;
- free_percpu(ptr[0]);
- free_percpu(ptr[1]);
- ptr[0] = ptr[1] = NULL;
-}
-
static int __init init_ipv6_mibs(void)
{
- if (snmp6_mib_init((void **)ipv6_statistics, sizeof (struct ipstats_mib),
- __alignof__(struct ipstats_mib)) < 0)
+ if (snmp_mib_init((void **)ipv6_statistics, sizeof (struct ipstats_mib),
+ __alignof__(struct ipstats_mib)) < 0)
goto err_ip_mib;
- if (snmp6_mib_init((void **)icmpv6_statistics, sizeof (struct icmpv6_mib),
- __alignof__(struct icmpv6_mib)) < 0)
+ if (snmp_mib_init((void **)icmpv6_statistics, sizeof (struct icmpv6_mib),
+ __alignof__(struct icmpv6_mib)) < 0)
goto err_icmp_mib;
- if (snmp6_mib_init((void **)udp_stats_in6, sizeof (struct udp_mib),
- __alignof__(struct udp_mib)) < 0)
+ if (snmp_mib_init((void **)udp_stats_in6, sizeof (struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
goto err_udp_mib;
- if (snmp6_mib_init((void **)udplite_stats_in6, sizeof (struct udp_mib),
- __alignof__(struct udp_mib)) < 0)
+ if (snmp_mib_init((void **)udplite_stats_in6, sizeof (struct udp_mib),
+ __alignof__(struct udp_mib)) < 0)
goto err_udplite_mib;
return 0;
err_udplite_mib:
- snmp6_mib_free((void **)udp_stats_in6);
+ snmp_mib_free((void **)udp_stats_in6);
err_udp_mib:
- snmp6_mib_free((void **)icmpv6_statistics);
+ snmp_mib_free((void **)icmpv6_statistics);
err_icmp_mib:
- snmp6_mib_free((void **)ipv6_statistics);
+ snmp_mib_free((void **)ipv6_statistics);
err_ip_mib:
return -ENOMEM;
static void cleanup_ipv6_mibs(void)
{
- snmp6_mib_free((void **)ipv6_statistics);
- snmp6_mib_free((void **)icmpv6_statistics);
- snmp6_mib_free((void **)udp_stats_in6);
- snmp6_mib_free((void **)udplite_stats_in6);
+ snmp_mib_free((void **)ipv6_statistics);
+ snmp_mib_free((void **)icmpv6_statistics);
+ snmp_mib_free((void **)udp_stats_in6);
+ snmp_mib_free((void **)udplite_stats_in6);
}
static int __init inet6_init(void)
{
/* First of all disallow new sockets creation. */
sock_unregister(PF_INET6);
+ /* Disallow any further netlink messages */
+ rtnl_unregister_all(PF_INET6);
/* Cleanup code parts. */
ipv6_packet_cleanup();
top_iph = (struct ipv6hdr *)skb->data;
top_iph->payload_len = htons(skb->len - sizeof(*top_iph));
- nexthdr = *skb->nh.raw;
- *skb->nh.raw = IPPROTO_AH;
+ nexthdr = *skb_network_header(skb);
+ *skb_network_header(skb) = IPPROTO_AH;
/* When there are no extension headers, we only need to save the first
* 8 bytes of the base IP header.
memcpy(tmp_base, top_iph, sizeof(tmp_base));
tmp_ext = NULL;
- extlen = skb->h.raw - (unsigned char *)(top_iph + 1);
+ extlen = skb_transport_offset(skb) + sizeof(struct ipv6hdr);
if (extlen) {
extlen += sizeof(*tmp_ext);
tmp_ext = kmalloc(extlen, GFP_ATOMIC);
goto error_free_iph;
}
- ah = (struct ip_auth_hdr *)skb->h.raw;
+ ah = (struct ip_auth_hdr *)skb_transport_header(skb);
ah->nexthdr = nexthdr;
top_iph->priority = 0;
*
* To erase AH:
* Keeping copy of cleared headers. After AH processing,
- * Moving the pointer of skb->nh.raw by using skb_pull as long as AH
- * header length. Then copy back the copy as long as hdr_len
+ * Moving the pointer of skb->network_header by using skb_pull as long
+ * as AH header length. Then copy back the copy as long as hdr_len
* If destination header following AH exists, copy it into after [Ext2].
*
* |<>|[IPv6][Ext1][Ext2][Dest][Payload]
*/
struct ipv6_auth_hdr *ah;
+ struct ipv6hdr *ip6h;
struct ah_data *ahp;
unsigned char *tmp_hdr = NULL;
u16 hdr_len;
pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
goto out;
- hdr_len = skb->data - skb->nh.raw;
+ hdr_len = skb->data - skb_network_header(skb);
ah = (struct ipv6_auth_hdr*)skb->data;
ahp = x->data;
nexthdr = ah->nexthdr;
if (!pskb_may_pull(skb, ah_hlen))
goto out;
- tmp_hdr = kmemdup(skb->nh.raw, hdr_len, GFP_ATOMIC);
+ tmp_hdr = kmemdup(skb_network_header(skb), hdr_len, GFP_ATOMIC);
if (!tmp_hdr)
goto out;
- if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len, XFRM_POLICY_IN))
+ ip6h = ipv6_hdr(skb);
+ if (ipv6_clear_mutable_options(ip6h, hdr_len, XFRM_POLICY_IN))
goto free_out;
- skb->nh.ipv6h->priority = 0;
- skb->nh.ipv6h->flow_lbl[0] = 0;
- skb->nh.ipv6h->flow_lbl[1] = 0;
- skb->nh.ipv6h->flow_lbl[2] = 0;
- skb->nh.ipv6h->hop_limit = 0;
+ ip6h->priority = 0;
+ ip6h->flow_lbl[0] = 0;
+ ip6h->flow_lbl[1] = 0;
+ ip6h->flow_lbl[2] = 0;
+ ip6h->hop_limit = 0;
{
u8 auth_data[MAX_AH_AUTH_LEN];
}
}
- skb->h.raw = memcpy(skb->nh.raw += ah_hlen, tmp_hdr, hdr_len);
+ skb->network_header += ah_hlen;
+ memcpy(skb_network_header(skb), tmp_hdr, hdr_len);
+ skb->transport_header = skb->network_header;
__skb_pull(skb, ah_hlen + hdr_len);
kfree(tmp_hdr);
__be16 port, u32 info, u8 *payload)
{
struct ipv6_pinfo *np = inet6_sk(sk);
- struct icmp6hdr *icmph = (struct icmp6hdr *)skb->h.raw;
+ struct icmp6hdr *icmph = icmp6_hdr(skb);
struct sock_exterr_skb *serr;
if (!np->recverr)
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
- serr->addr_offset = (u8*)&(((struct ipv6hdr*)(icmph+1))->daddr) - skb->nh.raw;
+ serr->addr_offset = (u8 *)&(((struct ipv6hdr *)(icmph + 1))->daddr) -
+ skb_network_header(skb);
serr->port = port;
- skb->h.raw = payload;
__skb_pull(skb, payload - skb->data);
+ skb_reset_transport_header(skb);
if (sock_queue_err_skb(sk, skb))
kfree_skb(skb);
if (!skb)
return;
- iph = (struct ipv6hdr*)skb_put(skb, sizeof(struct ipv6hdr));
- skb->nh.ipv6h = iph;
+ skb_put(skb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(skb);
+ iph = ipv6_hdr(skb);
ipv6_addr_copy(&iph->daddr, &fl->fl6_dst);
serr = SKB_EXT_ERR(skb);
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
- serr->addr_offset = (u8*)&iph->daddr - skb->nh.raw;
+ serr->addr_offset = (u8 *)&iph->daddr - skb_network_header(skb);
serr->port = fl->fl_ip_dport;
- skb->h.raw = skb->tail;
- __skb_pull(skb, skb->tail - skb->data);
+ __skb_pull(skb, skb_tail_pointer(skb) - skb->data);
+ skb_reset_transport_header(skb);
if (sock_queue_err_skb(sk, skb))
kfree_skb(skb);
sin = (struct sockaddr_in6 *)msg->msg_name;
if (sin) {
+ const unsigned char *nh = skb_network_header(skb);
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 0;
sin->sin6_port = serr->port;
sin->sin6_scope_id = 0;
if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) {
ipv6_addr_copy(&sin->sin6_addr,
- (struct in6_addr *)(skb->nh.raw + serr->addr_offset));
+ (struct in6_addr *)(nh + serr->addr_offset));
if (np->sndflow)
- sin->sin6_flowinfo = *(__be32*)(skb->nh.raw + serr->addr_offset - 24) & IPV6_FLOWINFO_MASK;
+ sin->sin6_flowinfo =
+ (*(__be32 *)(nh + serr->addr_offset - 24) &
+ IPV6_FLOWINFO_MASK);
if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
sin->sin6_scope_id = IP6CB(skb)->iif;
} else {
ipv6_addr_set(&sin->sin6_addr, 0, 0,
htonl(0xffff),
- *(__be32*)(skb->nh.raw + serr->addr_offset));
+ *(__be32 *)(nh + serr->addr_offset));
}
}
sin->sin6_flowinfo = 0;
sin->sin6_scope_id = 0;
if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) {
- ipv6_addr_copy(&sin->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin->sin6_addr, &ipv6_hdr(skb)->saddr);
if (np->rxopt.all)
datagram_recv_ctl(sk, msg, skb);
if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
struct inet_sock *inet = inet_sk(sk);
ipv6_addr_set(&sin->sin6_addr, 0, 0,
- htonl(0xffff),
- skb->nh.iph->saddr);
+ htonl(0xffff), ip_hdr(skb)->saddr);
if (inet->cmsg_flags)
ip_cmsg_recv(msg, skb);
}
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet6_skb_parm *opt = IP6CB(skb);
+ unsigned char *nh = skb_network_header(skb);
if (np->rxopt.bits.rxinfo) {
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = opt->iif;
- ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&src_info.ipi6_addr, &ipv6_hdr(skb)->daddr);
put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxhlim) {
- int hlim = skb->nh.ipv6h->hop_limit;
+ int hlim = ipv6_hdr(skb)->hop_limit;
put_cmsg(msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
}
if (np->rxopt.bits.rxtclass) {
- int tclass = (ntohl(*(__be32 *)skb->nh.ipv6h) >> 20) & 0xff;
+ int tclass = (ntohl(*(__be32 *)ipv6_hdr(skb)) >> 20) & 0xff;
put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
}
- if (np->rxopt.bits.rxflow && (*(__be32*)skb->nh.raw & IPV6_FLOWINFO_MASK)) {
- __be32 flowinfo = *(__be32*)skb->nh.raw & IPV6_FLOWINFO_MASK;
+ if (np->rxopt.bits.rxflow && (*(__be32 *)nh & IPV6_FLOWINFO_MASK)) {
+ __be32 flowinfo = *(__be32 *)nh & IPV6_FLOWINFO_MASK;
put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
}
/* HbH is allowed only once */
if (np->rxopt.bits.hopopts && opt->hop) {
- u8 *ptr = skb->nh.raw + opt->hop;
+ u8 *ptr = nh + opt->hop;
put_cmsg(msg, SOL_IPV6, IPV6_HOPOPTS, (ptr[1]+1)<<3, ptr);
}
* IPV6_RECVDSTOPTS is more generic. --yoshfuji
*/
unsigned int off = sizeof(struct ipv6hdr);
- u8 nexthdr = skb->nh.ipv6h->nexthdr;
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
while (off <= opt->lastopt) {
unsigned len;
- u8 *ptr = skb->nh.raw + off;
+ u8 *ptr = nh + off;
switch(nexthdr) {
case IPPROTO_DSTOPTS:
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = opt->iif;
- ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&src_info.ipi6_addr, &ipv6_hdr(skb)->daddr);
put_cmsg(msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxohlim) {
- int hlim = skb->nh.ipv6h->hop_limit;
+ int hlim = ipv6_hdr(skb)->hop_limit;
put_cmsg(msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
}
if (np->rxopt.bits.ohopopts && opt->hop) {
- u8 *ptr = skb->nh.raw + opt->hop;
+ u8 *ptr = nh + opt->hop;
put_cmsg(msg, SOL_IPV6, IPV6_2292HOPOPTS, (ptr[1]+1)<<3, ptr);
}
if (np->rxopt.bits.odstopts && opt->dst0) {
- u8 *ptr = skb->nh.raw + opt->dst0;
+ u8 *ptr = nh + opt->dst0;
put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
}
if (np->rxopt.bits.osrcrt && opt->srcrt) {
- struct ipv6_rt_hdr *rthdr = (struct ipv6_rt_hdr *)(skb->nh.raw + opt->srcrt);
+ struct ipv6_rt_hdr *rthdr = (struct ipv6_rt_hdr *)(nh + opt->srcrt);
put_cmsg(msg, SOL_IPV6, IPV6_2292RTHDR, (rthdr->hdrlen+1) << 3, rthdr);
}
if (np->rxopt.bits.odstopts && opt->dst1) {
- u8 *ptr = skb->nh.raw + opt->dst1;
+ u8 *ptr = nh + opt->dst1;
put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
}
return 0;
cmsg->cmsg_type);
err = -EINVAL;
break;
- };
+ }
}
exit_f:
static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
{
int err;
- int hdr_len;
struct ipv6hdr *top_iph;
struct ipv6_esp_hdr *esph;
struct crypto_blkcipher *tfm;
struct blkcipher_desc desc;
- struct esp_data *esp;
struct sk_buff *trailer;
int blksize;
int clen;
int alen;
int nfrags;
-
- esp = x->data;
- hdr_len = skb->h.raw - skb->data +
- sizeof(*esph) + esp->conf.ivlen;
+ u8 *tail;
+ struct esp_data *esp = x->data;
+ int hdr_len = (skb_transport_offset(skb) +
+ sizeof(*esph) + esp->conf.ivlen);
/* Strip IP+ESP header. */
__skb_pull(skb, hdr_len);
}
/* Fill padding... */
+ tail = skb_tail_pointer(trailer);
do {
int i;
for (i=0; i<clen-skb->len - 2; i++)
- *(u8*)(trailer->tail + i) = i+1;
+ tail[i] = i + 1;
} while (0);
- *(u8*)(trailer->tail + clen-skb->len - 2) = (clen - skb->len)-2;
+ tail[clen-skb->len - 2] = (clen - skb->len) - 2;
pskb_put(skb, trailer, clen - skb->len);
top_iph = (struct ipv6hdr *)__skb_push(skb, hdr_len);
- esph = (struct ipv6_esp_hdr *)skb->h.raw;
+ esph = (struct ipv6_esp_hdr *)skb_transport_header(skb);
top_iph->payload_len = htons(skb->len + alen - sizeof(*top_iph));
- *(u8*)(trailer->tail - 1) = *skb->nh.raw;
- *skb->nh.raw = IPPROTO_ESP;
+ *(skb_tail_pointer(trailer) - 1) = *skb_network_header(skb);
+ *skb_network_header(skb) = IPPROTO_ESP;
esph->spi = x->id.spi;
esph->seq_no = htonl(++x->replay.oseq);
int blksize = ALIGN(crypto_blkcipher_blocksize(tfm), 4);
int alen = esp->auth.icv_trunc_len;
int elen = skb->len - sizeof(struct ipv6_esp_hdr) - esp->conf.ivlen - alen;
-
- int hdr_len = skb->h.raw - skb->nh.raw;
+ int hdr_len = skb_network_header_len(skb);
int nfrags;
int ret = 0;
skb->ip_summed = CHECKSUM_NONE;
esph = (struct ipv6_esp_hdr*)skb->data;
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
/* Get ivec. This can be wrong, check against another impls. */
if (esp->conf.ivlen)
ret = nexthdr[1];
}
- skb->h.raw = __skb_pull(skb, sizeof(*esph) + esp->conf.ivlen) - hdr_len;
-
+ __skb_pull(skb, sizeof(*esph) + esp->conf.ivlen);
+ skb_set_transport_header(skb, -hdr_len);
out:
return ret;
}
-static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
+static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
{
struct esp_data *esp = x->data;
u32 blksize = ALIGN(crypto_blkcipher_blocksize(esp->conf.tfm), 4);
+ u32 align = max_t(u32, blksize, esp->conf.padlen);
+ u32 rem;
+
+ mtu -= x->props.header_len + esp->auth.icv_trunc_len;
+ rem = mtu & (align - 1);
+ mtu &= ~(align - 1);
- if (x->props.mode == XFRM_MODE_TUNNEL) {
- mtu = ALIGN(mtu + 2, blksize);
- } else {
- /* The worst case. */
+ if (x->props.mode != XFRM_MODE_TUNNEL) {
u32 padsize = ((blksize - 1) & 7) + 1;
- mtu = ALIGN(mtu + 2, padsize) + blksize - padsize;
+ mtu -= blksize - padsize;
+ mtu += min_t(u32, blksize - padsize, rem);
}
- if (esp->conf.padlen)
- mtu = ALIGN(mtu, esp->conf.padlen);
- return mtu + x->props.header_len + esp->auth.icv_trunc_len;
+ return mtu - 2;
}
static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
.proto = IPPROTO_ESP,
.init_state = esp6_init_state,
.destructor = esp6_destroy,
- .get_max_size = esp6_get_max_size,
+ .get_mtu = esp6_get_mtu,
.input = esp6_input,
.output = esp6_output,
.hdr_offset = xfrm6_find_1stfragopt,
int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
{
- int packet_len = skb->tail - skb->nh.raw;
+ const unsigned char *nh = skb_network_header(skb);
+ int packet_len = skb->tail - skb->network_header;
struct ipv6_opt_hdr *hdr;
int len;
if (offset + 2 > packet_len)
goto bad;
- hdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+ hdr = (struct ipv6_opt_hdr *)(nh + offset);
len = ((hdr->hdrlen + 1) << 3);
if (offset + len > packet_len)
len -= 2;
while (len > 0) {
- int opttype = skb->nh.raw[offset];
+ int opttype = nh[offset];
int optlen;
if (opttype == type)
optlen = 1;
break;
default:
- optlen = skb->nh.raw[offset + 1] + 2;
+ optlen = nh[offset + 1] + 2;
if (optlen > len)
goto bad;
break;
{
struct sk_buff *skb = *skbp;
- switch ((skb->nh.raw[optoff] & 0xC0) >> 6) {
+ switch ((skb_network_header(skb)[optoff] & 0xC0) >> 6) {
case 0: /* ignore */
return 1;
/* Actually, it is redundant check. icmp_send
will recheck in any case.
*/
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr))
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr))
break;
case 2: /* send ICMP PARM PROB regardless and drop packet */
icmpv6_param_prob(skb, ICMPV6_UNK_OPTION, optoff);
return 0;
- };
+ }
kfree_skb(skb);
return 0;
{
struct sk_buff *skb = *skbp;
struct tlvtype_proc *curr;
- int off = skb->h.raw - skb->nh.raw;
- int len = ((skb->h.raw[1]+1)<<3);
+ const unsigned char *nh = skb_network_header(skb);
+ int off = skb_network_header_len(skb);
+ int len = (skb_transport_header(skb)[1] + 1) << 3;
- if ((skb->h.raw + len) - skb->data > skb_headlen(skb))
+ if (skb_transport_offset(skb) + len > skb_headlen(skb))
goto bad;
off += 2;
len -= 2;
while (len > 0) {
- int optlen = skb->nh.raw[off+1]+2;
+ int optlen = nh[off + 1] + 2;
- switch (skb->nh.raw[off]) {
+ switch (nh[off]) {
case IPV6_TLV_PAD0:
optlen = 1;
break;
if (optlen > len)
goto bad;
for (curr=procs; curr->type >= 0; curr++) {
- if (curr->type == skb->nh.raw[off]) {
+ if (curr->type == nh[off]) {
/* type specific length/alignment
checks will be performed in the
func(). */
struct sk_buff *skb = *skbp;
struct ipv6_destopt_hao *hao;
struct inet6_skb_parm *opt = IP6CB(skb);
- struct ipv6hdr *ipv6h = (struct ipv6hdr *)skb->nh.raw;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct in6_addr tmp_addr;
int ret;
opt->dsthao = opt->dst1;
opt->dst1 = 0;
- hao = (struct ipv6_destopt_hao *)(skb->nh.raw + optoff);
+ hao = (struct ipv6_destopt_hao *)(skb_network_header(skb) + optoff);
if (hao->length != 16) {
LIMIT_NETDEBUG(
/* update all variable using below by copied skbuff */
*skbp = skb = skb2;
- hao = (struct ipv6_destopt_hao *)(skb2->nh.raw + optoff);
- ipv6h = (struct ipv6hdr *)skb2->nh.raw;
+ hao = (struct ipv6_destopt_hao *)(skb_network_header(skb2) +
+ optoff);
+ ipv6h = ipv6_hdr(skb2);
}
if (skb->ip_summed == CHECKSUM_COMPLETE)
ipv6_addr_copy(&ipv6h->saddr, &hao->addr);
ipv6_addr_copy(&hao->addr, &tmp_addr);
- if (skb->tstamp.off_sec == 0)
+ if (skb->tstamp.tv64 == 0)
__net_timestamp(skb);
return 1;
#endif
struct dst_entry *dst;
- if (!pskb_may_pull(skb, (skb->h.raw-skb->data)+8) ||
- !pskb_may_pull(skb, (skb->h.raw-skb->data)+((skb->h.raw[1]+1)<<3))) {
+ if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) ||
+ !pskb_may_pull(skb, (skb_transport_offset(skb) +
+ ((skb_transport_header(skb)[1] + 1) << 3)))) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
kfree_skb(skb);
return -1;
}
- opt->lastopt = skb->h.raw - skb->nh.raw;
- opt->dst1 = skb->h.raw - skb->nh.raw;
+ opt->lastopt = opt->dst1 = skb_network_header_len(skb);
#ifdef CONFIG_IPV6_MIP6
dstbuf = opt->dst1;
#endif
if (ip6_parse_tlv(tlvprocdestopt_lst, skbp)) {
dst_release(dst);
skb = *skbp;
- skb->h.raw += ((skb->h.raw[1]+1)<<3);
+ skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
opt = IP6CB(skb);
#ifdef CONFIG_IPV6_MIP6
opt->nhoff = dstbuf;
struct inet6_skb_parm *opt = IP6CB(skb);
struct in6_addr *addr = NULL;
struct in6_addr daddr;
+ struct inet6_dev *idev;
int n, i;
-
struct ipv6_rt_hdr *hdr;
struct rt0_hdr *rthdr;
+ int accept_source_route = ipv6_devconf.accept_source_route;
+
+ if (accept_source_route < 0 ||
+ ((idev = in6_dev_get(skb->dev)) == NULL)) {
+ kfree_skb(skb);
+ return -1;
+ }
+ if (idev->cnf.accept_source_route < 0) {
+ in6_dev_put(idev);
+ kfree_skb(skb);
+ return -1;
+ }
+
+ if (accept_source_route > idev->cnf.accept_source_route)
+ accept_source_route = idev->cnf.accept_source_route;
- if (!pskb_may_pull(skb, (skb->h.raw-skb->data)+8) ||
- !pskb_may_pull(skb, (skb->h.raw-skb->data)+((skb->h.raw[1]+1)<<3))) {
+ in6_dev_put(idev);
+
+ if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) ||
+ !pskb_may_pull(skb, (skb_transport_offset(skb) +
+ ((skb_transport_header(skb)[1] + 1) << 3)))) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
kfree_skb(skb);
return -1;
}
- hdr = (struct ipv6_rt_hdr *) skb->h.raw;
+ hdr = (struct ipv6_rt_hdr *)skb_transport_header(skb);
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr) ||
+ switch (hdr->type) {
+#ifdef CONFIG_IPV6_MIP6
+ case IPV6_SRCRT_TYPE_2:
+ break;
+#endif
+ case IPV6_SRCRT_TYPE_0:
+ if (accept_source_route > 0)
+ break;
+ kfree_skb(skb);
+ return -1;
+ default:
+ IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
+ IPSTATS_MIB_INHDRERRORS);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+ (&hdr->type) - skb_network_header(skb));
+ return -1;
+ }
+
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) ||
skb->pkt_type != PACKET_HOST) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INADDRERRORS);
break;
}
- opt->lastopt = skb->h.raw - skb->nh.raw;
- opt->srcrt = skb->h.raw - skb->nh.raw;
- skb->h.raw += (hdr->hdrlen + 1) << 3;
+ opt->lastopt = opt->srcrt = skb_network_header_len(skb);
+ skb->transport_header += (hdr->hdrlen + 1) << 3;
opt->dst0 = opt->dst1;
opt->dst1 = 0;
- opt->nhoff = (&hdr->nexthdr) - skb->nh.raw;
+ opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);
return 1;
}
if (hdr->hdrlen & 0x01) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
- icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->hdrlen) - skb->nh.raw);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+ ((&hdr->hdrlen) -
+ skb_network_header(skb)));
return -1;
}
break;
}
break;
#endif
- default:
- IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
- IPSTATS_MIB_INHDRERRORS);
- icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->type) - skb->nh.raw);
- return -1;
}
/*
if (hdr->segments_left > n) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
- icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, (&hdr->segments_left) - skb->nh.raw);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+ ((&hdr->segments_left) -
+ skb_network_header(skb)));
return -1;
}
kfree_skb(skb);
*skbp = skb = skb2;
opt = IP6CB(skb2);
- hdr = (struct ipv6_rt_hdr *) skb2->h.raw;
+ hdr = (struct ipv6_rt_hdr *)skb_transport_header(skb2);
}
if (skb->ip_summed == CHECKSUM_COMPLETE)
#ifdef CONFIG_IPV6_MIP6
case IPV6_SRCRT_TYPE_2:
if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
- (xfrm_address_t *)&skb->nh.ipv6h->saddr,
+ (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
IPPROTO_ROUTING) < 0) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INADDRERRORS);
}
ipv6_addr_copy(&daddr, addr);
- ipv6_addr_copy(addr, &skb->nh.ipv6h->daddr);
- ipv6_addr_copy(&skb->nh.ipv6h->daddr, &daddr);
+ ipv6_addr_copy(addr, &ipv6_hdr(skb)->daddr);
+ ipv6_addr_copy(&ipv6_hdr(skb)->daddr, &daddr);
dst_release(xchg(&skb->dst, NULL));
ip6_route_input(skb);
if (skb->dst->error) {
- skb_push(skb, skb->data - skb->nh.raw);
+ skb_push(skb, skb->data - skb_network_header(skb));
dst_input(skb);
return -1;
}
if (skb->dst->dev->flags&IFF_LOOPBACK) {
- if (skb->nh.ipv6h->hop_limit <= 1) {
+ if (ipv6_hdr(skb)->hop_limit <= 1) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT,
kfree_skb(skb);
return -1;
}
- skb->nh.ipv6h->hop_limit--;
+ ipv6_hdr(skb)->hop_limit--;
goto looped_back;
}
- skb_push(skb, skb->data - skb->nh.raw);
+ skb_push(skb, skb->data - skb_network_header(skb));
dst_input(skb);
return -1;
}
static int ipv6_hop_ra(struct sk_buff **skbp, int optoff)
{
struct sk_buff *skb = *skbp;
+ const unsigned char *nh = skb_network_header(skb);
- if (skb->nh.raw[optoff+1] == 2) {
+ if (nh[optoff + 1] == 2) {
IP6CB(skb)->ra = optoff;
return 1;
}
LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_ra: wrong RA length %d\n",
- skb->nh.raw[optoff+1]);
+ nh[optoff + 1]);
kfree_skb(skb);
return 0;
}
static int ipv6_hop_jumbo(struct sk_buff **skbp, int optoff)
{
struct sk_buff *skb = *skbp;
+ const unsigned char *nh = skb_network_header(skb);
u32 pkt_len;
- if (skb->nh.raw[optoff+1] != 4 || (optoff&3) != 2) {
+ if (nh[optoff + 1] != 4 || (optoff & 3) != 2) {
LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",
- skb->nh.raw[optoff+1]);
+ nh[optoff+1]);
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
goto drop;
}
- pkt_len = ntohl(*(__be32*)(skb->nh.raw+optoff+2));
+ pkt_len = ntohl(*(__be32 *)(nh + optoff + 2));
if (pkt_len <= IPV6_MAXPLEN) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff+2);
return 0;
}
- if (skb->nh.ipv6h->payload_len) {
+ if (ipv6_hdr(skb)->payload_len) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff);
return 0;
struct inet6_skb_parm *opt = IP6CB(skb);
/*
- * skb->nh.raw is equal to skb->data, and
- * skb->h.raw - skb->nh.raw is always equal to
+ * skb_network_header(skb) is equal to skb->data, and
+ * skb_network_header_len(skb) is always equal to
* sizeof(struct ipv6hdr) by definition of
* hop-by-hop options.
*/
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr) + 8) ||
- !pskb_may_pull(skb, sizeof(struct ipv6hdr) + ((skb->h.raw[1] + 1) << 3))) {
+ !pskb_may_pull(skb, (sizeof(struct ipv6hdr) +
+ ((skb_transport_header(skb)[1] + 1) << 3)))) {
kfree_skb(skb);
return -1;
}
opt->hop = sizeof(struct ipv6hdr);
if (ip6_parse_tlv(tlvprochopopt_lst, skbp)) {
skb = *skbp;
- skb->h.raw += (skb->h.raw[1]+1)<<3;
+ skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
opt = IP6CB(skb);
opt->nhoff = sizeof(struct ipv6hdr);
return 1;
ipv6_push_exthdr(skb, proto, NEXTHDR_HOP, opt->hopopt);
}
+EXPORT_SYMBOL(ipv6_push_nfrag_opts);
+
void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto)
{
if (opt->dst1opt)
#include <net/fib_rules.h>
#include <net/ipv6.h>
+#include <net/addrconf.h>
#include <net/ip6_route.h>
#include <net/netlink.h>
if (table)
rt = lookup(table, flp, flags);
- if (rt != &ip6_null_entry)
+ if (rt != &ip6_null_entry) {
+ struct fib6_rule *r = (struct fib6_rule *)rule;
+
+ /*
+ * If we need to find a source address for this traffic,
+ * we check the result if it meets requirement of the rule.
+ */
+ if ((rule->flags & FIB_RULE_FIND_SADDR) &&
+ r->src.plen && !(flags & RT6_LOOKUP_F_HAS_SADDR)) {
+ struct in6_addr saddr;
+ if (ipv6_get_saddr(&rt->u.dst, &flp->fl6_dst,
+ &saddr))
+ goto again;
+ if (!ipv6_prefix_equal(&saddr, &r->src.addr,
+ r->src.plen))
+ goto again;
+ ipv6_addr_copy(&flp->fl6_src, &saddr);
+ }
goto out;
+ }
+again:
dst_release(&rt->u.dst);
rt = NULL;
goto out;
!ipv6_prefix_equal(&fl->fl6_dst, &r->dst.addr, r->dst.plen))
return 0;
+ /*
+ * If FIB_RULE_FIND_SADDR is set and we do not have a
+ * source address for the traffic, we defer check for
+ * source address.
+ */
if (r->src.plen) {
- if (!(flags & RT6_LOOKUP_F_HAS_SADDR) ||
- !ipv6_prefix_equal(&fl->fl6_src, &r->src.addr, r->src.plen))
+ if (flags & RT6_LOOKUP_F_HAS_SADDR) {
+ if (!ipv6_prefix_equal(&fl->fl6_src, &r->src.addr,
+ r->src.plen))
+ return 0;
+ } else if (!(r->common.flags & FIB_RULE_FIND_SADDR))
return 0;
}
return -ENOBUFS;
}
-int fib6_rules_dump(struct sk_buff *skb, struct netlink_callback *cb)
-{
- return fib_rules_dump(skb, cb, AF_INET6);
-}
-
static u32 fib6_rule_default_pref(void)
{
return 0x3FFF;
#include <asm/system.h>
DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics) __read_mostly;
+EXPORT_SYMBOL(icmpv6_statistics);
/*
* The ICMP socket(s). This is the most convenient way to flow control
static int is_ineligible(struct sk_buff *skb)
{
- int ptr = (u8*)(skb->nh.ipv6h+1) - skb->data;
+ int ptr = (u8 *)(ipv6_hdr(skb) + 1) - skb->data;
int len = skb->len - ptr;
- __u8 nexthdr = skb->nh.ipv6h->nexthdr;
+ __u8 nexthdr = ipv6_hdr(skb)->nexthdr;
if (len < 0)
return 1;
{
u8 _optval, *op;
- offset += skb->nh.raw - skb->data;
+ offset += skb_network_offset(skb);
op = skb_header_pointer(skb, offset, sizeof(_optval), &_optval);
if (op == NULL)
return 1;
if ((skb = skb_peek(&sk->sk_write_queue)) == NULL)
goto out;
- icmp6h = (struct icmp6hdr*) skb->h.raw;
+ icmp6h = icmp6_hdr(skb);
memcpy(icmp6h, thdr, sizeof(struct icmp6hdr));
icmp6h->icmp6_cksum = 0;
#ifdef CONFIG_IPV6_MIP6
static void mip6_addr_swap(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct inet6_skb_parm *opt = IP6CB(skb);
struct ipv6_destopt_hao *hao;
struct in6_addr tmp;
if (opt->dsthao) {
off = ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO);
if (likely(off >= 0)) {
- hao = (struct ipv6_destopt_hao *)(skb->nh.raw + off);
+ hao = (struct ipv6_destopt_hao *)
+ (skb_network_header(skb) + off);
ipv6_addr_copy(&tmp, &iph->saddr);
ipv6_addr_copy(&iph->saddr, &hao->addr);
ipv6_addr_copy(&hao->addr, &tmp);
struct net_device *dev)
{
struct inet6_dev *idev = NULL;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct sock *sk;
struct ipv6_pinfo *np;
struct in6_addr *saddr = NULL;
int hlimit, tclass;
int err = 0;
- if ((u8*)hdr < skb->head || (u8*)(hdr+1) > skb->tail)
+ if ((u8 *)hdr < skb->head ||
+ (skb->network_header + sizeof(*hdr)) > skb->tail)
return;
/*
tclass = 0;
msg.skb = skb;
- msg.offset = skb->nh.raw - skb->data;
+ msg.offset = skb_network_offset(skb);
msg.type = type;
len = skb->len - msg.offset;
icmpv6_xmit_unlock();
}
+EXPORT_SYMBOL(icmpv6_send);
+
static void icmpv6_echo_reply(struct sk_buff *skb)
{
struct sock *sk;
struct inet6_dev *idev;
struct ipv6_pinfo *np;
struct in6_addr *saddr = NULL;
- struct icmp6hdr *icmph = (struct icmp6hdr *) skb->h.raw;
+ struct icmp6hdr *icmph = icmp6_hdr(skb);
struct icmp6hdr tmp_hdr;
struct flowi fl;
struct icmpv6_msg msg;
int hlimit;
int tclass;
- saddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->daddr;
if (!ipv6_unicast_destination(skb))
saddr = NULL;
memset(&fl, 0, sizeof(fl));
fl.proto = IPPROTO_ICMPV6;
- ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
if (saddr)
ipv6_addr_copy(&fl.fl6_src, saddr);
fl.oif = skb->dev->ifindex;
if (!pskb_may_pull(skb, inner_offset+8))
return;
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
/* BUGGG_FUTURE: we should try to parse exthdrs in this packet.
Without this we will not able f.e. to make source routed
ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INMSGS);
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
/* Perform checksum. */
switch (skb->ip_summed) {
if (!pskb_pull(skb, sizeof(struct icmp6hdr)))
goto discard_it;
- hdr = (struct icmp6hdr *) skb->h.raw;
+ hdr = icmp6_hdr(skb);
type = hdr->icmp6_type;
*/
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto discard_it;
- hdr = (struct icmp6hdr *) skb->h.raw;
+ hdr = icmp6_hdr(skb);
orig_hdr = (struct ipv6hdr *) (hdr + 1);
rt6_pmtu_discovery(&orig_hdr->daddr, &orig_hdr->saddr, dev,
ntohl(hdr->icmp6_mtu));
*/
icmpv6_notify(skb, type, hdr->icmp6_code, hdr->icmp6_mtu);
- };
+ }
+
kfree_skb(skb);
return 0;
case ICMPV6_TIME_EXCEED:
*err = EHOSTUNREACH;
break;
- };
+ }
return fatal;
}
+EXPORT_SYMBOL(icmpv6_err_convert);
+
#ifdef CONFIG_SYSCTL
ctl_table ipv6_icmp_table[] = {
{
return res;
}
-int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
+static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
{
unsigned int h, s_h;
unsigned int e = 0, s_e;
NULL, NULL);
fib6_tables_init();
+
+ __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib);
}
void fib6_gc_cleanup(void)
if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
goto err;
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
if (hdr->version != 6)
goto err;
- skb->h.raw = (u8 *)(hdr + 1);
+ skb->transport_header = skb->network_header + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
pkt_len = ntohs(hdr->payload_len);
IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS);
goto drop;
}
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
}
if (hdr->nexthdr == NEXTHDR_HOP) {
rcu_read_lock();
resubmit:
idev = ip6_dst_idev(skb->dst);
- if (!pskb_pull(skb, skb->h.raw - skb->data))
+ if (!pskb_pull(skb, skb_transport_offset(skb)))
goto discard;
nhoff = IP6CB(skb)->nhoff;
- nexthdr = skb->nh.raw[nhoff];
+ nexthdr = skb_network_header(skb)[nhoff];
raw_sk = sk_head(&raw_v6_htable[nexthdr & (MAX_INET_PROTOS - 1)]);
if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
indefinitely. */
nf_reset(skb);
- skb_postpull_rcsum(skb, skb->nh.raw,
- skb->h.raw - skb->nh.raw);
- hdr = skb->nh.ipv6h;
+ skb_postpull_rcsum(skb, skb_network_header(skb),
+ skb_network_header_len(skb));
+ hdr = ipv6_hdr(skb);
if (ipv6_addr_is_multicast(&hdr->daddr) &&
!ipv6_chk_mcast_addr(skb->dev, &hdr->daddr,
&hdr->saddr) &&
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCASTPKTS);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
deliver = likely(!(skb->dev->flags & (IFF_PROMISC|IFF_ALLMULTI))) ||
ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL);
/* dev_loopback_xmit for use with netfilter. */
static int ip6_dev_loopback_xmit(struct sk_buff *newskb)
{
- newskb->mac.raw = newskb->data;
- __skb_pull(newskb, newskb->nh.raw - newskb->data);
+ skb_reset_mac_header(newskb);
+ __skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
BUG_TRAP(newskb->dst);
skb->protocol = htons(ETH_P_IPV6);
skb->dev = dev;
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr)) {
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct ipv6_pinfo* np = skb->sk ? inet6_sk(skb->sk) : NULL;
struct inet6_dev *idev = ip6_dst_idev(skb->dst);
if (!(dev->flags & IFF_LOOPBACK) && (!np || np->mc_loop) &&
- ipv6_chk_mcast_addr(dev, &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr)) {
+ ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr)) {
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
/* Do not check for IFF_ALLMULTI; multicast routing
newskb->dev,
ip6_dev_loopback_xmit);
- if (skb->nh.ipv6h->hop_limit == 0) {
+ if (ipv6_hdr(skb)->hop_limit == 0) {
IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
return 0;
return NF_HOOK(PF_INET6, NF_IP6_POST_ROUTING, skb,NULL, skb->dev,ip6_output_finish);
}
+static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
+{
+ struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+
+ return (np && np->pmtudisc == IPV6_PMTUDISC_PROBE) ?
+ skb->dst->dev->mtu : dst_mtu(skb->dst);
+}
+
int ip6_output(struct sk_buff *skb)
{
- if ((skb->len > dst_mtu(skb->dst) && !skb_is_gso(skb)) ||
+ if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
dst_allfrag(skb->dst))
return ip6_fragment(skb, ip6_output2);
else
ipv6_push_nfrag_opts(skb, opt, &proto, &first_hop);
}
- hdr = skb->nh.ipv6h = (struct ipv6hdr*)skb_push(skb, sizeof(struct ipv6hdr));
+ skb_push(skb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(skb);
+ hdr = ipv6_hdr(skb);
/*
* Fill in the IPv6 header
return -EMSGSIZE;
}
+EXPORT_SYMBOL(ip6_xmit);
+
/*
* To avoid extra problems ND packets are send through this
* routine. It's code duplication but I really want to avoid
totlen = len + sizeof(struct ipv6hdr);
- hdr = (struct ipv6hdr *) skb_put(skb, sizeof(struct ipv6hdr));
- skb->nh.ipv6h = hdr;
+ skb_reset_network_header(skb);
+ skb_put(skb, sizeof(struct ipv6hdr));
+ hdr = ipv6_hdr(skb);
*(__be32*)hdr = htonl(0x60000000);
static int ip6_forward_proxy_check(struct sk_buff *skb)
{
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
u8 nexthdr = hdr->nexthdr;
int offset;
if (nexthdr == IPPROTO_ICMPV6) {
struct icmp6hdr *icmp6;
- if (!pskb_may_pull(skb, skb->nh.raw + offset + 1 - skb->data))
+ if (!pskb_may_pull(skb, (skb_network_header(skb) +
+ offset + 1 - skb->data)))
return 0;
- icmp6 = (struct icmp6hdr *)(skb->nh.raw + offset);
+ icmp6 = (struct icmp6hdr *)(skb_network_header(skb) + offset);
switch (icmp6->icmp6_type) {
case NDISC_ROUTER_SOLICITATION:
int ip6_forward(struct sk_buff *skb)
{
struct dst_entry *dst = skb->dst;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct inet6_skb_parm *opt = IP6CB(skb);
if (ipv6_devconf.forwarding == 0)
goto drop;
}
- skb->ip_summed = CHECKSUM_NONE;
+ skb_forward_csum(skb);
/*
* We DO NOT make any processing on
* that different fragments will go along one path. --ANK
*/
if (opt->ra) {
- u8 *ptr = skb->nh.raw + opt->ra;
+ u8 *ptr = skb_network_header(skb) + opt->ra;
if (ip6_call_ra_chain(skb, (ptr[2]<<8) + ptr[3]))
return 0;
}
goto drop;
}
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
/* Mangling hops number delayed to point after skb COW */
#ifdef CONFIG_NET_SCHED
to->tc_index = from->tc_index;
#endif
-#ifdef CONFIG_NETFILTER
- /* Connection association is same as pre-frag packet */
- nf_conntrack_put(to->nfct);
- to->nfct = from->nfct;
- nf_conntrack_get(to->nfct);
- to->nfctinfo = from->nfctinfo;
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
- nf_conntrack_put_reasm(to->nfct_reasm);
- to->nfct_reasm = from->nfct_reasm;
- nf_conntrack_get_reasm(to->nfct_reasm);
-#endif
-#ifdef CONFIG_BRIDGE_NETFILTER
- nf_bridge_put(to->nf_bridge);
- to->nf_bridge = from->nf_bridge;
- nf_bridge_get(to->nf_bridge);
-#endif
-#endif
+ nf_copy(to, from);
skb_copy_secmark(to, from);
}
int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
- unsigned int packet_len = skb->tail - skb->nh.raw;
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
+ unsigned int packet_len = skb->tail - skb->network_header;
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
offset += ipv6_optlen(exthdr);
*nexthdr = &exthdr->nexthdr;
- exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+ exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
+ offset);
}
return offset;
hlen = ip6_find_1stfragopt(skb, &prevhdr);
nexthdr = *prevhdr;
- mtu = dst_mtu(&rt->u.dst);
+ mtu = ip6_skb_dst_mtu(skb);
+
+ /* We must not fragment if the socket is set to force MTU discovery
+ * or if the skb it not generated by a local socket. (This last
+ * check should be redundant, but it's free.)
+ */
+ if (!np || np->pmtudisc >= IPV6_PMTUDISC_DO) {
+ skb->dev = skb->dst->dev;
+ icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
+ IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
+ kfree_skb(skb);
+ return -EMSGSIZE;
+ }
+
if (np && np->frag_size < mtu) {
if (np->frag_size)
mtu = np->frag_size;
/* BUILD HEADER */
*prevhdr = NEXTHDR_FRAGMENT;
- tmp_hdr = kmemdup(skb->nh.raw, hlen, GFP_ATOMIC);
+ tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
if (!tmp_hdr) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_FRAGFAILS);
return -ENOMEM;
__skb_pull(skb, hlen);
fh = (struct frag_hdr*)__skb_push(skb, sizeof(struct frag_hdr));
- skb->nh.raw = __skb_push(skb, hlen);
- memcpy(skb->nh.raw, tmp_hdr, hlen);
+ __skb_push(skb, hlen);
+ skb_reset_network_header(skb);
+ memcpy(skb_network_header(skb), tmp_hdr, hlen);
ipv6_select_ident(skb, fh);
fh->nexthdr = nexthdr;
first_len = skb_pagelen(skb);
skb->data_len = first_len - skb_headlen(skb);
skb->len = first_len;
- skb->nh.ipv6h->payload_len = htons(first_len - sizeof(struct ipv6hdr));
+ ipv6_hdr(skb)->payload_len = htons(first_len -
+ sizeof(struct ipv6hdr));
dst_hold(&rt->u.dst);
* before previous one went down. */
if (frag) {
frag->ip_summed = CHECKSUM_NONE;
- frag->h.raw = frag->data;
+ skb_reset_transport_header(frag);
fh = (struct frag_hdr*)__skb_push(frag, sizeof(struct frag_hdr));
- frag->nh.raw = __skb_push(frag, hlen);
- memcpy(frag->nh.raw, tmp_hdr, hlen);
+ __skb_push(frag, hlen);
+ skb_reset_network_header(frag);
+ memcpy(skb_network_header(frag), tmp_hdr,
+ hlen);
offset += skb->len - hlen - sizeof(struct frag_hdr);
fh->nexthdr = nexthdr;
fh->reserved = 0;
if (frag->next != NULL)
fh->frag_off |= htons(IP6_MF);
fh->identification = frag_id;
- frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr));
+ ipv6_hdr(frag)->payload_len =
+ htons(frag->len -
+ sizeof(struct ipv6hdr));
ip6_copy_metadata(frag, skb);
}
ip6_copy_metadata(frag, skb);
skb_reserve(frag, LL_RESERVED_SPACE(rt->u.dst.dev));
skb_put(frag, len + hlen + sizeof(struct frag_hdr));
- frag->nh.raw = frag->data;
- fh = (struct frag_hdr*)(frag->data + hlen);
- frag->h.raw = frag->data + hlen + sizeof(struct frag_hdr);
+ skb_reset_network_header(frag);
+ fh = (struct frag_hdr *)(skb_network_header(frag) + hlen);
+ frag->transport_header = (frag->network_header + hlen +
+ sizeof(struct frag_hdr));
/*
* Charge the memory for the fragment to any owner
/*
* Copy the packet header into the new buffer.
*/
- memcpy(frag->nh.raw, skb->data, hlen);
+ skb_copy_from_linear_data(skb, skb_network_header(frag), hlen);
/*
* Build fragment header.
/*
* Copy a block of the IP datagram.
*/
- if (skb_copy_bits(skb, ptr, frag->h.raw, len))
+ if (skb_copy_bits(skb, ptr, skb_transport_header(skb), len))
BUG();
left -= len;
fh->frag_off = htons(offset);
if (left > 0)
fh->frag_off |= htons(IP6_MF);
- frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr));
+ ipv6_hdr(frag)->payload_len = htons(frag->len -
+ sizeof(struct ipv6hdr));
ptr += len;
offset += len;
goto out_err_release;
}
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ /*
+ * Here if the dst entry we've looked up
+ * has a neighbour entry that is in the INCOMPLETE
+ * state and the src address from the flow is
+ * marked as OPTIMISTIC, we release the found
+ * dst entry and replace it instead with the
+ * dst entry of the nexthop router
+ */
+ if (!((*dst)->neighbour->nud_state & NUD_VALID)) {
+ struct inet6_ifaddr *ifp;
+ struct flowi fl_gw;
+ int redirect;
+
+ ifp = ipv6_get_ifaddr(&fl->fl6_src, (*dst)->dev, 1);
+
+ redirect = (ifp && ifp->flags & IFA_F_OPTIMISTIC);
+ if (ifp)
+ in6_ifa_put(ifp);
+
+ if (redirect) {
+ /*
+ * We need to get the dst entry for the
+ * default router instead
+ */
+ dst_release(*dst);
+ memcpy(&fl_gw, fl, sizeof(struct flowi));
+ memset(&fl_gw.fl6_dst, 0, sizeof(struct in6_addr));
+ *dst = ip6_route_output(sk, &fl_gw);
+ if ((err = (*dst)->error))
+ goto out_err_release;
+ }
+ }
+#endif
+
return 0;
out_err_release:
skb_put(skb,fragheaderlen + transhdrlen);
/* initialize network header pointer */
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* initialize protocol header pointer */
- skb->h.raw = skb->data + fragheaderlen;
+ skb->transport_header = skb->network_header + fragheaderlen;
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
inet->cork.fl = *fl;
np->cork.hop_limit = hlimit;
np->cork.tclass = tclass;
- mtu = dst_mtu(rt->u.dst.path);
+ mtu = np->pmtudisc == IPV6_PMTUDISC_PROBE ?
+ rt->u.dst.dev->mtu : dst_mtu(rt->u.dst.path);
if (np->frag_size < mtu) {
if (np->frag_size)
mtu = np->frag_size;
* Find where to start putting bytes
*/
data = skb_put(skb, fraglen);
- skb->nh.raw = data + exthdrlen;
+ skb_set_network_header(skb, exthdrlen);
data += fragheaderlen;
- skb->h.raw = data + exthdrlen;
-
+ skb->transport_header = (skb->network_header +
+ fragheaderlen);
if (fraggap) {
skb->csum = skb_copy_and_csum_bits(
skb_prev, maxfraglen,
tail_skb = &(skb_shinfo(skb)->frag_list);
/* move skb->data to ip header from ext header */
- if (skb->data < skb->nh.raw)
- __skb_pull(skb, skb->nh.raw - skb->data);
+ if (skb->data < skb_network_header(skb))
+ __skb_pull(skb, skb_network_offset(skb));
while ((tmp_skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
- __skb_pull(tmp_skb, skb->h.raw - skb->nh.raw);
+ __skb_pull(tmp_skb, skb_network_header_len(skb));
*tail_skb = tmp_skb;
tail_skb = &(tmp_skb->next);
skb->len += tmp_skb->len;
}
ipv6_addr_copy(final_dst, &fl->fl6_dst);
- __skb_pull(skb, skb->h.raw - skb->nh.raw);
+ __skb_pull(skb, skb_network_header_len(skb));
if (opt && opt->opt_flen)
ipv6_push_frag_opts(skb, opt, &proto);
if (opt && opt->opt_nflen)
ipv6_push_nfrag_opts(skb, opt, &proto, &final_dst);
- skb->nh.ipv6h = hdr = (struct ipv6hdr*) skb_push(skb, sizeof(struct ipv6hdr));
+ skb_push(skb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(skb);
+ hdr = ipv6_hdr(skb);
*(__be32*)hdr = fl->fl6_flowlabel |
htonl(0x60000000 | ((int)np->cork.tclass << 20));
/*
- * IPv6 over IPv6 tunnel device
+ * IPv6 tunneling device
* Linux INET6 implementation
*
* Authors:
* Ville Nuorvala <vnuorval@tcs.hut.fi>
+ * Yasuyuki Kozakai <kozakai@linux-ipv6.org>
*
* $Id$
*
* Based on:
- * linux/net/ipv6/sit.c
+ * linux/net/ipv6/sit.c and linux/net/ipv4/ipip.c
*
* RFC 2473
*
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/sockios.h>
+#include <linux/icmp.h>
#include <linux/if.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
+#include <net/icmp.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
#include <net/inet_ecn.h>
MODULE_AUTHOR("Ville Nuorvala");
-MODULE_DESCRIPTION("IPv6-in-IPv6 tunnel");
+MODULE_DESCRIPTION("IPv6 tunneling device");
MODULE_LICENSE("GPL");
#define IPV6_TLV_TEL_DST_SIZE 8
#endif
#define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK)
+#define IPV6_TCLASS_SHIFT 20
#define HASH_SIZE 32
(addr)->s6_addr32[2] ^ (addr)->s6_addr32[3]) & \
(HASH_SIZE - 1))
-static int ip6ip6_fb_tnl_dev_init(struct net_device *dev);
-static int ip6ip6_tnl_dev_init(struct net_device *dev);
-static void ip6ip6_tnl_dev_setup(struct net_device *dev);
+static int ip6_fb_tnl_dev_init(struct net_device *dev);
+static int ip6_tnl_dev_init(struct net_device *dev);
+static void ip6_tnl_dev_setup(struct net_device *dev);
/* the IPv6 tunnel fallback device */
-static struct net_device *ip6ip6_fb_tnl_dev;
+static struct net_device *ip6_fb_tnl_dev;
/* lists for storing tunnels in use */
static struct ip6_tnl **tnls[2] = { tnls_wc, tnls_r_l };
/* lock for the tunnel lists */
-static DEFINE_RWLOCK(ip6ip6_lock);
+static DEFINE_RWLOCK(ip6_tnl_lock);
static inline struct dst_entry *ip6_tnl_dst_check(struct ip6_tnl *t)
{
}
/**
- * ip6ip6_tnl_lookup - fetch tunnel matching the end-point addresses
+ * ip6_tnl_lookup - fetch tunnel matching the end-point addresses
* @remote: the address of the tunnel exit-point
* @local: the address of the tunnel entry-point
*
**/
static struct ip6_tnl *
-ip6ip6_tnl_lookup(struct in6_addr *remote, struct in6_addr *local)
+ip6_tnl_lookup(struct in6_addr *remote, struct in6_addr *local)
{
unsigned h0 = HASH(remote);
unsigned h1 = HASH(local);
}
/**
- * ip6ip6_bucket - get head of list matching given tunnel parameters
+ * ip6_tnl_bucket - get head of list matching given tunnel parameters
* @p: parameters containing tunnel end-points
*
* Description:
- * ip6ip6_bucket() returns the head of the list matching the
+ * ip6_tnl_bucket() returns the head of the list matching the
* &struct in6_addr entries laddr and raddr in @p.
*
* Return: head of IPv6 tunnel list
**/
static struct ip6_tnl **
-ip6ip6_bucket(struct ip6_tnl_parm *p)
+ip6_tnl_bucket(struct ip6_tnl_parm *p)
{
struct in6_addr *remote = &p->raddr;
struct in6_addr *local = &p->laddr;
}
/**
- * ip6ip6_tnl_link - add tunnel to hash table
+ * ip6_tnl_link - add tunnel to hash table
* @t: tunnel to be added
**/
static void
-ip6ip6_tnl_link(struct ip6_tnl *t)
+ip6_tnl_link(struct ip6_tnl *t)
{
- struct ip6_tnl **tp = ip6ip6_bucket(&t->parms);
+ struct ip6_tnl **tp = ip6_tnl_bucket(&t->parms);
t->next = *tp;
- write_lock_bh(&ip6ip6_lock);
+ write_lock_bh(&ip6_tnl_lock);
*tp = t;
- write_unlock_bh(&ip6ip6_lock);
+ write_unlock_bh(&ip6_tnl_lock);
}
/**
- * ip6ip6_tnl_unlink - remove tunnel from hash table
+ * ip6_tnl_unlink - remove tunnel from hash table
* @t: tunnel to be removed
**/
static void
-ip6ip6_tnl_unlink(struct ip6_tnl *t)
+ip6_tnl_unlink(struct ip6_tnl *t)
{
struct ip6_tnl **tp;
- for (tp = ip6ip6_bucket(&t->parms); *tp; tp = &(*tp)->next) {
+ for (tp = ip6_tnl_bucket(&t->parms); *tp; tp = &(*tp)->next) {
if (t == *tp) {
- write_lock_bh(&ip6ip6_lock);
+ write_lock_bh(&ip6_tnl_lock);
*tp = t->next;
- write_unlock_bh(&ip6ip6_lock);
+ write_unlock_bh(&ip6_tnl_lock);
break;
}
}
if (i == IP6_TNL_MAX)
goto failed;
}
- dev = alloc_netdev(sizeof (*t), name, ip6ip6_tnl_dev_setup);
+ dev = alloc_netdev(sizeof (*t), name, ip6_tnl_dev_setup);
if (dev == NULL)
goto failed;
t = netdev_priv(dev);
- dev->init = ip6ip6_tnl_dev_init;
+ dev->init = ip6_tnl_dev_init;
t->parms = *p;
if ((err = register_netdevice(dev)) < 0) {
goto failed;
}
dev_hold(dev);
- ip6ip6_tnl_link(t);
+ ip6_tnl_link(t);
return t;
failed:
return NULL;
}
/**
- * ip6ip6_tnl_locate - find or create tunnel matching given parameters
+ * ip6_tnl_locate - find or create tunnel matching given parameters
* @p: tunnel parameters
* @create: != 0 if allowed to create new tunnel if no match found
*
* Description:
- * ip6ip6_tnl_locate() first tries to locate an existing tunnel
+ * ip6_tnl_locate() first tries to locate an existing tunnel
* based on @parms. If this is unsuccessful, but @create is set a new
* tunnel device is created and registered for use.
*
* matching tunnel or NULL
**/
-static struct ip6_tnl *ip6ip6_tnl_locate(struct ip6_tnl_parm *p, int create)
+static struct ip6_tnl *ip6_tnl_locate(struct ip6_tnl_parm *p, int create)
{
struct in6_addr *remote = &p->raddr;
struct in6_addr *local = &p->laddr;
struct ip6_tnl *t;
- for (t = *ip6ip6_bucket(p); t; t = t->next) {
+ for (t = *ip6_tnl_bucket(p); t; t = t->next) {
if (ipv6_addr_equal(local, &t->parms.laddr) &&
ipv6_addr_equal(remote, &t->parms.raddr))
return t;
}
/**
- * ip6ip6_tnl_dev_uninit - tunnel device uninitializer
+ * ip6_tnl_dev_uninit - tunnel device uninitializer
* @dev: the device to be destroyed
*
* Description:
- * ip6ip6_tnl_dev_uninit() removes tunnel from its list
+ * ip6_tnl_dev_uninit() removes tunnel from its list
**/
static void
-ip6ip6_tnl_dev_uninit(struct net_device *dev)
+ip6_tnl_dev_uninit(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- if (dev == ip6ip6_fb_tnl_dev) {
- write_lock_bh(&ip6ip6_lock);
+ if (dev == ip6_fb_tnl_dev) {
+ write_lock_bh(&ip6_tnl_lock);
tnls_wc[0] = NULL;
- write_unlock_bh(&ip6ip6_lock);
+ write_unlock_bh(&ip6_tnl_lock);
} else {
- ip6ip6_tnl_unlink(t);
+ ip6_tnl_unlink(t);
}
ip6_tnl_dst_reset(t);
dev_put(dev);
}
/**
- * ip6ip6_err - tunnel error handler
+ * ip6_tnl_err - tunnel error handler
*
* Description:
- * ip6ip6_err() should handle errors in the tunnel according
+ * ip6_tnl_err() should handle errors in the tunnel according
* to the specifications in RFC 2473.
**/
static int
-ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
- int type, int code, int offset, __be32 info)
+ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
+ int *type, int *code, int *msg, __be32 *info, int offset)
{
struct ipv6hdr *ipv6h = (struct ipv6hdr *) skb->data;
struct ip6_tnl *t;
in trouble since we might need the source address for further
processing of the error. */
- read_lock(&ip6ip6_lock);
- if ((t = ip6ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
+ read_lock(&ip6_tnl_lock);
+ if ((t = ip6_tnl_lookup(&ipv6h->daddr, &ipv6h->saddr)) == NULL)
+ goto out;
+
+ if (t->parms.proto != ipproto && t->parms.proto != 0)
goto out;
err = 0;
- switch (type) {
+ switch (*type) {
__u32 teli;
struct ipv6_tlv_tnl_enc_lim *tel;
__u32 mtu;
rel_msg = 1;
break;
case ICMPV6_TIME_EXCEED:
- if (code == ICMPV6_EXC_HOPLIMIT) {
+ if ((*code) == ICMPV6_EXC_HOPLIMIT) {
if (net_ratelimit())
printk(KERN_WARNING
"%s: Too small hop limit or "
break;
case ICMPV6_PARAMPROB:
teli = 0;
- if (code == ICMPV6_HDR_FIELD)
+ if ((*code) == ICMPV6_HDR_FIELD)
teli = parse_tlv_tnl_enc_lim(skb, skb->data);
- if (teli && teli == ntohl(info) - 2) {
+ if (teli && teli == ntohl(*info) - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
if (tel->encap_limit == 0) {
if (net_ratelimit())
}
break;
case ICMPV6_PKT_TOOBIG:
- mtu = ntohl(info) - offset;
+ mtu = ntohl(*info) - offset;
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
t->dev->mtu = mtu;
}
break;
}
- if (rel_msg && pskb_may_pull(skb, offset + sizeof (*ipv6h))) {
+
+ *type = rel_type;
+ *code = rel_code;
+ *info = rel_info;
+ *msg = rel_msg;
+
+out:
+ read_unlock(&ip6_tnl_lock);
+ return err;
+}
+
+static int
+ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+ int type, int code, int offset, __u32 info)
+{
+ int rel_msg = 0;
+ int rel_type = type;
+ int rel_code = code;
+ __u32 rel_info = info;
+ int err;
+ struct sk_buff *skb2;
+ struct iphdr *eiph;
+ struct flowi fl;
+ struct rtable *rt;
+
+ err = ip6_tnl_err(skb, IPPROTO_IPIP, opt, &rel_type, &rel_code,
+ &rel_msg, &rel_info, offset);
+ if (err < 0)
+ return err;
+
+ if (rel_msg == 0)
+ return 0;
+
+ switch (rel_type) {
+ case ICMPV6_DEST_UNREACH:
+ if (rel_code != ICMPV6_ADDR_UNREACH)
+ return 0;
+ rel_type = ICMP_DEST_UNREACH;
+ rel_code = ICMP_HOST_UNREACH;
+ break;
+ case ICMPV6_PKT_TOOBIG:
+ if (rel_code != 0)
+ return 0;
+ rel_type = ICMP_DEST_UNREACH;
+ rel_code = ICMP_FRAG_NEEDED;
+ break;
+ default:
+ return 0;
+ }
+
+ if (!pskb_may_pull(skb, offset + sizeof(struct iphdr)))
+ return 0;
+
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (!skb2)
+ return 0;
+
+ dst_release(skb2->dst);
+ skb2->dst = NULL;
+ skb_pull(skb2, offset);
+ skb_reset_network_header(skb2);
+ eiph = ip_hdr(skb2);
+
+ /* Try to guess incoming interface */
+ memset(&fl, 0, sizeof(fl));
+ fl.fl4_dst = eiph->saddr;
+ fl.fl4_tos = RT_TOS(eiph->tos);
+ fl.proto = IPPROTO_IPIP;
+ if (ip_route_output_key(&rt, &fl))
+ goto out;
+
+ skb2->dev = rt->u.dst.dev;
+
+ /* route "incoming" packet */
+ if (rt->rt_flags & RTCF_LOCAL) {
+ ip_rt_put(rt);
+ rt = NULL;
+ fl.fl4_dst = eiph->daddr;
+ fl.fl4_src = eiph->saddr;
+ fl.fl4_tos = eiph->tos;
+ if (ip_route_output_key(&rt, &fl) ||
+ rt->u.dst.dev->type != ARPHRD_TUNNEL) {
+ ip_rt_put(rt);
+ goto out;
+ }
+ } else {
+ ip_rt_put(rt);
+ if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
+ skb2->dev) ||
+ skb2->dst->dev->type != ARPHRD_TUNNEL)
+ goto out;
+ }
+
+ /* change mtu on this route */
+ if (rel_type == ICMP_DEST_UNREACH && rel_code == ICMP_FRAG_NEEDED) {
+ if (rel_info > dst_mtu(skb2->dst))
+ goto out;
+
+ skb2->dst->ops->update_pmtu(skb2->dst, rel_info);
+ rel_info = htonl(rel_info);
+ }
+
+ icmp_send(skb2, rel_type, rel_code, rel_info);
+
+out:
+ kfree_skb(skb2);
+ return 0;
+}
+
+static int
+ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+ int type, int code, int offset, __u32 info)
+{
+ int rel_msg = 0;
+ int rel_type = type;
+ int rel_code = code;
+ __u32 rel_info = info;
+ int err;
+
+ err = ip6_tnl_err(skb, IPPROTO_IPV6, opt, &rel_type, &rel_code,
+ &rel_msg, &rel_info, offset);
+ if (err < 0)
+ return err;
+
+ if (rel_msg && pskb_may_pull(skb, offset + sizeof(struct ipv6hdr))) {
struct rt6_info *rt;
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2)
- goto out;
+ return 0;
dst_release(skb2->dst);
skb2->dst = NULL;
skb_pull(skb2, offset);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
/* Try to guess incoming interface */
- rt = rt6_lookup(&skb2->nh.ipv6h->saddr, NULL, 0, 0);
+ rt = rt6_lookup(&ipv6_hdr(skb2)->saddr, NULL, 0, 0);
if (rt && rt->rt6i_dev)
skb2->dev = rt->rt6i_dev;
kfree_skb(skb2);
}
-out:
- read_unlock(&ip6ip6_lock);
- return err;
+
+ return 0;
}
-static inline void ip6ip6_ecn_decapsulate(struct ipv6hdr *outer_iph,
- struct sk_buff *skb)
+static void ip4ip6_dscp_ecn_decapsulate(struct ip6_tnl *t,
+ struct ipv6hdr *ipv6h,
+ struct sk_buff *skb)
{
- struct ipv6hdr *inner_iph = skb->nh.ipv6h;
+ __u8 dsfield = ipv6_get_dsfield(ipv6h) & ~INET_ECN_MASK;
- if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
- IP6_ECN_set_ce(inner_iph);
+ if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
+ ipv4_change_dsfield(ip_hdr(skb), INET_ECN_MASK, dsfield);
+
+ if (INET_ECN_is_ce(dsfield))
+ IP_ECN_set_ce(ip_hdr(skb));
+}
+
+static void ip6ip6_dscp_ecn_decapsulate(struct ip6_tnl *t,
+ struct ipv6hdr *ipv6h,
+ struct sk_buff *skb)
+{
+ if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
+ ipv6_copy_dscp(ipv6h, ipv6_hdr(skb));
+
+ if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6h)))
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
+
static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t)
{
struct ip6_tnl_parm *p = &t->parms;
}
/**
- * ip6ip6_rcv - decapsulate IPv6 packet and retransmit it locally
+ * ip6_tnl_rcv - decapsulate IPv6 packet and retransmit it locally
* @skb: received socket buffer
+ * @protocol: ethernet protocol ID
+ * @dscp_ecn_decapsulate: the function to decapsulate DSCP code and ECN
*
* Return: 0
**/
-static int
-ip6ip6_rcv(struct sk_buff *skb)
+static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
+ __u8 ipproto,
+ void (*dscp_ecn_decapsulate)(struct ip6_tnl *t,
+ struct ipv6hdr *ipv6h,
+ struct sk_buff *skb))
{
- struct ipv6hdr *ipv6h;
struct ip6_tnl *t;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
- ipv6h = skb->nh.ipv6h;
+ read_lock(&ip6_tnl_lock);
- read_lock(&ip6ip6_lock);
+ if ((t = ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
+ if (t->parms.proto != ipproto && t->parms.proto != 0) {
+ read_unlock(&ip6_tnl_lock);
+ goto discard;
+ }
- if ((t = ip6ip6_tnl_lookup(&ipv6h->saddr, &ipv6h->daddr)) != NULL) {
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
- read_unlock(&ip6ip6_lock);
+ read_unlock(&ip6_tnl_lock);
goto discard;
}
if (!ip6_tnl_rcv_ctl(t)) {
t->stat.rx_dropped++;
- read_unlock(&ip6ip6_lock);
+ read_unlock(&ip6_tnl_lock);
goto discard;
}
secpath_reset(skb);
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = skb->data;
- skb->protocol = htons(ETH_P_IPV6);
+ skb->mac_header = skb->network_header;
+ skb_reset_network_header(skb);
+ skb->protocol = htons(protocol);
skb->pkt_type = PACKET_HOST;
memset(skb->cb, 0, sizeof(struct inet6_skb_parm));
skb->dev = t->dev;
dst_release(skb->dst);
skb->dst = NULL;
nf_reset(skb);
- if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
- ipv6_copy_dscp(ipv6h, skb->nh.ipv6h);
- ip6ip6_ecn_decapsulate(ipv6h, skb);
+
+ dscp_ecn_decapsulate(t, ipv6h, skb);
+
t->stat.rx_packets++;
t->stat.rx_bytes += skb->len;
netif_rx(skb);
- read_unlock(&ip6ip6_lock);
+ read_unlock(&ip6_tnl_lock);
return 0;
}
- read_unlock(&ip6ip6_lock);
+ read_unlock(&ip6_tnl_lock);
return 1;
discard:
return 0;
}
+static int ip4ip6_rcv(struct sk_buff *skb)
+{
+ return ip6_tnl_rcv(skb, ETH_P_IP, IPPROTO_IPIP,
+ ip4ip6_dscp_ecn_decapsulate);
+}
+
+static int ip6ip6_rcv(struct sk_buff *skb)
+{
+ return ip6_tnl_rcv(skb, ETH_P_IPV6, IPPROTO_IPV6,
+ ip6ip6_dscp_ecn_decapsulate);
+}
+
struct ipv6_tel_txoption {
struct ipv6_txoptions ops;
__u8 dst_opt[8];
}
/**
- * ip6ip6_tnl_addr_conflict - compare packet addresses to tunnel's own
+ * ip6_tnl_addr_conflict - compare packet addresses to tunnel's own
* @t: the outgoing tunnel device
* @hdr: IPv6 header from the incoming packet
*
**/
static inline int
-ip6ip6_tnl_addr_conflict(struct ip6_tnl *t, struct ipv6hdr *hdr)
+ip6_tnl_addr_conflict(struct ip6_tnl *t, struct ipv6hdr *hdr)
{
return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);
}
return ret;
}
/**
- * ip6ip6_tnl_xmit - encapsulate packet and send
+ * ip6_tnl_xmit2 - encapsulate packet and send
* @skb: the outgoing socket buffer
* @dev: the outgoing tunnel device
+ * @dsfield: dscp code for outer header
+ * @fl: flow of tunneled packet
+ * @encap_limit: encapsulation limit
+ * @pmtu: Path MTU is stored if packet is too big
*
* Description:
* Build new header and do some sanity checks on the packet before sending
* it.
*
* Return:
- * 0
+ * 0 on success
+ * -1 fail
+ * %-EMSGSIZE message too big. return mtu in this case.
**/
-static int
-ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
+static int ip6_tnl_xmit2(struct sk_buff *skb,
+ struct net_device *dev,
+ __u8 dsfield,
+ struct flowi *fl,
+ int encap_limit,
+ __u32 *pmtu)
{
struct ip6_tnl *t = netdev_priv(dev);
struct net_device_stats *stats = &t->stat;
- struct ipv6hdr *ipv6h = skb->nh.ipv6h;
- int encap_limit = -1;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct ipv6_tel_txoption opt;
- __u16 offset;
- struct flowi fl;
struct dst_entry *dst;
struct net_device *tdev;
int mtu;
int max_headroom = sizeof(struct ipv6hdr);
u8 proto;
- int err;
+ int err = -1;
int pkt_len;
- int dsfield;
-
- if (t->recursion++) {
- stats->collisions++;
- goto tx_err;
- }
- if (skb->protocol != htons(ETH_P_IPV6) ||
- !ip6_tnl_xmit_ctl(t) || ip6ip6_tnl_addr_conflict(t, ipv6h))
- goto tx_err;
-
- if ((offset = parse_tlv_tnl_enc_lim(skb, skb->nh.raw)) > 0) {
- struct ipv6_tlv_tnl_enc_lim *tel;
- tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->nh.raw[offset];
- if (tel->encap_limit == 0) {
- icmpv6_send(skb, ICMPV6_PARAMPROB,
- ICMPV6_HDR_FIELD, offset + 2, skb->dev);
- goto tx_err;
- }
- encap_limit = tel->encap_limit - 1;
- } else if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
- encap_limit = t->parms.encap_limit;
-
- memcpy(&fl, &t->fl, sizeof (fl));
- proto = fl.proto;
-
- dsfield = ipv6_get_dsfield(ipv6h);
- if ((t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS))
- fl.fl6_flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
- if ((t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL))
- fl.fl6_flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK);
if ((dst = ip6_tnl_dst_check(t)) != NULL)
dst_hold(dst);
else {
- dst = ip6_route_output(NULL, &fl);
+ dst = ip6_route_output(NULL, fl);
- if (dst->error || xfrm_lookup(&dst, &fl, NULL, 0) < 0)
+ if (dst->error || xfrm_lookup(&dst, fl, NULL, 0) < 0)
goto tx_err_link_failure;
}
if (skb->dst)
skb->dst->ops->update_pmtu(skb->dst, mtu);
if (skb->len > mtu) {
- icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev);
+ *pmtu = mtu;
+ err = -EMSGSIZE;
goto tx_err_dst_release;
}
dst_release(skb->dst);
skb->dst = dst_clone(dst);
- skb->h.raw = skb->nh.raw;
+ skb->transport_header = skb->network_header;
+ proto = fl->proto;
if (encap_limit >= 0) {
init_tel_txopt(&opt, encap_limit);
ipv6_push_nfrag_opts(skb, &opt.ops, &proto, NULL);
}
- skb->nh.raw = skb_push(skb, sizeof(struct ipv6hdr));
- ipv6h = skb->nh.ipv6h;
- *(__be32*)ipv6h = fl.fl6_flowlabel | htonl(0x60000000);
+ skb_push(skb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(skb);
+ ipv6h = ipv6_hdr(skb);
+ *(__be32*)ipv6h = fl->fl6_flowlabel | htonl(0x60000000);
dsfield = INET_ECN_encapsulate(0, dsfield);
ipv6_change_dsfield(ipv6h, ~INET_ECN_MASK, dsfield);
ipv6h->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
ipv6h->hop_limit = t->parms.hop_limit;
ipv6h->nexthdr = proto;
- ipv6_addr_copy(&ipv6h->saddr, &fl.fl6_src);
- ipv6_addr_copy(&ipv6h->daddr, &fl.fl6_dst);
+ ipv6_addr_copy(&ipv6h->saddr, &fl->fl6_src);
+ ipv6_addr_copy(&ipv6h->daddr, &fl->fl6_dst);
nf_reset(skb);
pkt_len = skb->len;
err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL,
stats->tx_aborted_errors++;
}
ip6_tnl_dst_store(t, dst);
- t->recursion--;
return 0;
tx_err_link_failure:
stats->tx_carrier_errors++;
dst_link_failure(skb);
tx_err_dst_release:
dst_release(dst);
+ return err;
+}
+
+static inline int
+ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ip6_tnl *t = netdev_priv(dev);
+ struct iphdr *iph = ip_hdr(skb);
+ int encap_limit = -1;
+ struct flowi fl;
+ __u8 dsfield;
+ __u32 mtu;
+ int err;
+
+ if ((t->parms.proto != IPPROTO_IPIP && t->parms.proto != 0) ||
+ !ip6_tnl_xmit_ctl(t))
+ return -1;
+
+ if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
+ encap_limit = t->parms.encap_limit;
+
+ memcpy(&fl, &t->fl, sizeof (fl));
+ fl.proto = IPPROTO_IPIP;
+
+ dsfield = ipv4_get_dsfield(iph);
+
+ if ((t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS))
+ fl.fl6_flowlabel |= ntohl(((__u32)iph->tos << IPV6_TCLASS_SHIFT)
+ & IPV6_TCLASS_MASK);
+
+ err = ip6_tnl_xmit2(skb, dev, dsfield, &fl, encap_limit, &mtu);
+ if (err != 0) {
+ /* XXX: send ICMP error even if DF is not set. */
+ if (err == -EMSGSIZE)
+ icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
+ htonl(mtu));
+ return -1;
+ }
+
+ return 0;
+}
+
+static inline int
+ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ip6_tnl *t = netdev_priv(dev);
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+ int encap_limit = -1;
+ __u16 offset;
+ struct flowi fl;
+ __u8 dsfield;
+ __u32 mtu;
+ int err;
+
+ if ((t->parms.proto != IPPROTO_IPV6 && t->parms.proto != 0) ||
+ !ip6_tnl_xmit_ctl(t) || ip6_tnl_addr_conflict(t, ipv6h))
+ return -1;
+
+ offset = parse_tlv_tnl_enc_lim(skb, skb_network_header(skb));
+ if (offset > 0) {
+ struct ipv6_tlv_tnl_enc_lim *tel;
+ tel = (struct ipv6_tlv_tnl_enc_lim *)&skb_network_header(skb)[offset];
+ if (tel->encap_limit == 0) {
+ icmpv6_send(skb, ICMPV6_PARAMPROB,
+ ICMPV6_HDR_FIELD, offset + 2, skb->dev);
+ return -1;
+ }
+ encap_limit = tel->encap_limit - 1;
+ } else if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
+ encap_limit = t->parms.encap_limit;
+
+ memcpy(&fl, &t->fl, sizeof (fl));
+ fl.proto = IPPROTO_IPV6;
+
+ dsfield = ipv6_get_dsfield(ipv6h);
+ if ((t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS))
+ fl.fl6_flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
+ if ((t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL))
+ fl.fl6_flowlabel |= (*(__be32 *) ipv6h & IPV6_FLOWLABEL_MASK);
+
+ err = ip6_tnl_xmit2(skb, dev, dsfield, &fl, encap_limit, &mtu);
+ if (err != 0) {
+ if (err == -EMSGSIZE)
+ icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, dev);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ip6_tnl *t = netdev_priv(dev);
+ struct net_device_stats *stats = &t->stat;
+ int ret;
+
+ if (t->recursion++) {
+ t->stat.collisions++;
+ goto tx_err;
+ }
+
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ ret = ip4ip6_tnl_xmit(skb, dev);
+ break;
+ case __constant_htons(ETH_P_IPV6):
+ ret = ip6ip6_tnl_xmit(skb, dev);
+ break;
+ default:
+ goto tx_err;
+ }
+
+ if (ret < 0)
+ goto tx_err;
+
+ t->recursion--;
+ return 0;
+
tx_err:
stats->tx_errors++;
stats->tx_dropped++;
}
}
-static void ip6ip6_tnl_link_config(struct ip6_tnl *t)
+static void ip6_tnl_link_config(struct ip6_tnl *t)
{
struct net_device *dev = t->dev;
struct ip6_tnl_parm *p = &t->parms;
}
/**
- * ip6ip6_tnl_change - update the tunnel parameters
+ * ip6_tnl_change - update the tunnel parameters
* @t: tunnel to be changed
* @p: tunnel configuration parameters
* @active: != 0 if tunnel is ready for use
*
* Description:
- * ip6ip6_tnl_change() updates the tunnel parameters
+ * ip6_tnl_change() updates the tunnel parameters
**/
static int
-ip6ip6_tnl_change(struct ip6_tnl *t, struct ip6_tnl_parm *p)
+ip6_tnl_change(struct ip6_tnl *t, struct ip6_tnl_parm *p)
{
ipv6_addr_copy(&t->parms.laddr, &p->laddr);
ipv6_addr_copy(&t->parms.raddr, &p->raddr);
t->parms.encap_limit = p->encap_limit;
t->parms.flowinfo = p->flowinfo;
t->parms.link = p->link;
+ t->parms.proto = p->proto;
ip6_tnl_dst_reset(t);
- ip6ip6_tnl_link_config(t);
+ ip6_tnl_link_config(t);
return 0;
}
/**
- * ip6ip6_tnl_ioctl - configure ipv6 tunnels from userspace
+ * ip6_tnl_ioctl - configure ipv6 tunnels from userspace
* @dev: virtual device associated with tunnel
* @ifr: parameters passed from userspace
* @cmd: command to be performed
*
* Description:
- * ip6ip6_tnl_ioctl() is used for managing IPv6 tunnels
+ * ip6_tnl_ioctl() is used for managing IPv6 tunnels
* from userspace.
*
* The possible commands are the following:
**/
static int
-ip6ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ip6_tnl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
int err = 0;
struct ip6_tnl_parm p;
switch (cmd) {
case SIOCGETTUNNEL:
- if (dev == ip6ip6_fb_tnl_dev) {
+ if (dev == ip6_fb_tnl_dev) {
if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof (p))) {
err = -EFAULT;
break;
}
- t = ip6ip6_tnl_locate(&p, 0);
+ t = ip6_tnl_locate(&p, 0);
}
if (t == NULL)
t = netdev_priv(dev);
if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof (p)))
break;
err = -EINVAL;
- if (p.proto != IPPROTO_IPV6)
+ if (p.proto != IPPROTO_IPV6 && p.proto != IPPROTO_IPIP &&
+ p.proto != 0)
break;
- t = ip6ip6_tnl_locate(&p, cmd == SIOCADDTUNNEL);
- if (dev != ip6ip6_fb_tnl_dev && cmd == SIOCCHGTUNNEL) {
+ t = ip6_tnl_locate(&p, cmd == SIOCADDTUNNEL);
+ if (dev != ip6_fb_tnl_dev && cmd == SIOCCHGTUNNEL) {
if (t != NULL) {
if (t->dev != dev) {
err = -EEXIST;
} else
t = netdev_priv(dev);
- ip6ip6_tnl_unlink(t);
- err = ip6ip6_tnl_change(t, &p);
- ip6ip6_tnl_link(t);
+ ip6_tnl_unlink(t);
+ err = ip6_tnl_change(t, &p);
+ ip6_tnl_link(t);
netdev_state_change(dev);
}
if (t) {
if (!capable(CAP_NET_ADMIN))
break;
- if (dev == ip6ip6_fb_tnl_dev) {
+ if (dev == ip6_fb_tnl_dev) {
err = -EFAULT;
if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof (p)))
break;
err = -ENOENT;
- if ((t = ip6ip6_tnl_locate(&p, 0)) == NULL)
+ if ((t = ip6_tnl_locate(&p, 0)) == NULL)
break;
err = -EPERM;
- if (t->dev == ip6ip6_fb_tnl_dev)
+ if (t->dev == ip6_fb_tnl_dev)
break;
dev = t->dev;
}
}
/**
- * ip6ip6_tnl_get_stats - return the stats for tunnel device
+ * ip6_tnl_get_stats - return the stats for tunnel device
* @dev: virtual device associated with tunnel
*
* Return: stats for device
**/
static struct net_device_stats *
-ip6ip6_tnl_get_stats(struct net_device *dev)
+ip6_tnl_get_stats(struct net_device *dev)
{
return &(((struct ip6_tnl *)netdev_priv(dev))->stat);
}
/**
- * ip6ip6_tnl_change_mtu - change mtu manually for tunnel device
+ * ip6_tnl_change_mtu - change mtu manually for tunnel device
* @dev: virtual device associated with tunnel
* @new_mtu: the new mtu
*
**/
static int
-ip6ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
+ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
{
if (new_mtu < IPV6_MIN_MTU) {
return -EINVAL;
}
/**
- * ip6ip6_tnl_dev_setup - setup virtual tunnel device
+ * ip6_tnl_dev_setup - setup virtual tunnel device
* @dev: virtual device associated with tunnel
*
* Description:
* Initialize function pointers and device parameters
**/
-static void ip6ip6_tnl_dev_setup(struct net_device *dev)
+static void ip6_tnl_dev_setup(struct net_device *dev)
{
SET_MODULE_OWNER(dev);
- dev->uninit = ip6ip6_tnl_dev_uninit;
+ dev->uninit = ip6_tnl_dev_uninit;
dev->destructor = free_netdev;
- dev->hard_start_xmit = ip6ip6_tnl_xmit;
- dev->get_stats = ip6ip6_tnl_get_stats;
- dev->do_ioctl = ip6ip6_tnl_ioctl;
- dev->change_mtu = ip6ip6_tnl_change_mtu;
+ dev->hard_start_xmit = ip6_tnl_xmit;
+ dev->get_stats = ip6_tnl_get_stats;
+ dev->do_ioctl = ip6_tnl_ioctl;
+ dev->change_mtu = ip6_tnl_change_mtu;
dev->type = ARPHRD_TUNNEL6;
dev->hard_header_len = LL_MAX_HEADER + sizeof (struct ipv6hdr);
/**
- * ip6ip6_tnl_dev_init_gen - general initializer for all tunnel devices
+ * ip6_tnl_dev_init_gen - general initializer for all tunnel devices
* @dev: virtual device associated with tunnel
**/
static inline void
-ip6ip6_tnl_dev_init_gen(struct net_device *dev)
+ip6_tnl_dev_init_gen(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- t->fl.proto = IPPROTO_IPV6;
t->dev = dev;
strcpy(t->parms.name, dev->name);
}
/**
- * ip6ip6_tnl_dev_init - initializer for all non fallback tunnel devices
+ * ip6_tnl_dev_init - initializer for all non fallback tunnel devices
* @dev: virtual device associated with tunnel
**/
static int
-ip6ip6_tnl_dev_init(struct net_device *dev)
+ip6_tnl_dev_init(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- ip6ip6_tnl_dev_init_gen(dev);
- ip6ip6_tnl_link_config(t);
+ ip6_tnl_dev_init_gen(dev);
+ ip6_tnl_link_config(t);
return 0;
}
/**
- * ip6ip6_fb_tnl_dev_init - initializer for fallback tunnel device
+ * ip6_fb_tnl_dev_init - initializer for fallback tunnel device
* @dev: fallback device
*
* Return: 0
**/
static int
-ip6ip6_fb_tnl_dev_init(struct net_device *dev)
+ip6_fb_tnl_dev_init(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- ip6ip6_tnl_dev_init_gen(dev);
+ ip6_tnl_dev_init_gen(dev);
+ t->parms.proto = IPPROTO_IPV6;
dev_hold(dev);
tnls_wc[0] = t;
return 0;
}
+static struct xfrm6_tunnel ip4ip6_handler = {
+ .handler = ip4ip6_rcv,
+ .err_handler = ip4ip6_err,
+ .priority = 1,
+};
+
static struct xfrm6_tunnel ip6ip6_handler = {
.handler = ip6ip6_rcv,
.err_handler = ip6ip6_err,
{
int err;
+ if (xfrm6_tunnel_register(&ip4ip6_handler, AF_INET)) {
+ printk(KERN_ERR "ip6_tunnel init: can't register ip4ip6\n");
+ err = -EAGAIN;
+ goto out;
+ }
+
if (xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6)) {
- printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
- return -EAGAIN;
+ printk(KERN_ERR "ip6_tunnel init: can't register ip6ip6\n");
+ err = -EAGAIN;
+ goto unreg_ip4ip6;
}
- ip6ip6_fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
- ip6ip6_tnl_dev_setup);
+ ip6_fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6tnl0",
+ ip6_tnl_dev_setup);
- if (!ip6ip6_fb_tnl_dev) {
+ if (!ip6_fb_tnl_dev) {
err = -ENOMEM;
goto fail;
}
- ip6ip6_fb_tnl_dev->init = ip6ip6_fb_tnl_dev_init;
+ ip6_fb_tnl_dev->init = ip6_fb_tnl_dev_init;
- if ((err = register_netdev(ip6ip6_fb_tnl_dev))) {
- free_netdev(ip6ip6_fb_tnl_dev);
+ if ((err = register_netdev(ip6_fb_tnl_dev))) {
+ free_netdev(ip6_fb_tnl_dev);
goto fail;
}
return 0;
fail:
xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6);
+unreg_ip4ip6:
+ xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET);
+out:
return err;
}
-static void __exit ip6ip6_destroy_tunnels(void)
+static void __exit ip6_tnl_destroy_tunnels(void)
{
int h;
struct ip6_tnl *t;
static void __exit ip6_tunnel_cleanup(void)
{
+ if (xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET))
+ printk(KERN_INFO "ip6_tunnel close: can't deregister ip4ip6\n");
+
if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
- printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
+ printk(KERN_INFO "ip6_tunnel close: can't deregister ip6ip6\n");
rtnl_lock();
- ip6ip6_destroy_tunnels();
+ ip6_tnl_destroy_tunnels();
rtnl_unlock();
}
skb->ip_summed = CHECKSUM_NONE;
/* Remove ipcomp header and decompress original payload */
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
ipch = (void *)skb->data;
- skb->h.raw = skb->nh.raw + sizeof(*ipch);
+ skb->transport_header = skb->network_header + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));
/* decompression */
skb->truesize += dlen - plen;
__skb_put(skb, dlen - plen);
- memcpy(skb->data, scratch, dlen);
+ skb_copy_to_linear_data(skb, scratch, dlen);
err = ipch->nexthdr;
out_put_cpu:
{
int err;
struct ipv6hdr *top_iph;
- int hdr_len;
struct ipv6_comp_hdr *ipch;
struct ipcomp_data *ipcd = x->data;
int plen, dlen;
u8 *start, *scratch;
struct crypto_comp *tfm;
int cpu;
-
- hdr_len = skb->h.raw - skb->data;
+ int hdr_len = skb_transport_offset(skb);
/* check whether datagram len is larger than threshold */
if ((skb->len - hdr_len) < ipcd->threshold) {
/* compression */
plen = skb->len - hdr_len;
dlen = IPCOMP_SCRATCH_SIZE;
- start = skb->h.raw;
+ start = skb_transport_header(skb);
cpu = get_cpu();
scratch = *per_cpu_ptr(ipcomp6_scratches, cpu);
top_iph->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
ipch = (struct ipv6_comp_hdr *)start;
- ipch->nexthdr = *skb->nh.raw;
+ ipch->nexthdr = *skb_network_header(skb);
ipch->flags = 0;
ipch->cpi = htons((u16 )ntohl(x->id.spi));
- *skb->nh.raw = IPPROTO_COMP;
+ *skb_network_header(skb) = IPPROTO_COMP;
out_ok:
return 0;
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
__skb_pull(skb, sizeof(*ipv6h));
err = -EPROTONOSUPPORT;
rcu_read_lock();
ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
if (likely(ops && ops->gso_send_check)) {
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = ops->gso_send_check(skb);
}
rcu_read_unlock();
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
__skb_pull(skb, sizeof(*ipv6h));
segs = ERR_PTR(-EPROTONOSUPPORT);
rcu_read_lock();
ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
if (likely(ops && ops->gso_segment)) {
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
segs = ops->gso_segment(skb, features);
}
rcu_read_unlock();
goto out;
for (skb = segs; skb; skb = skb->next) {
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
ipv6h->payload_len = htons(skb->len - skb->mac_len -
sizeof(*ipv6h));
}
retv = ip6_ra_control(sk, val, NULL);
break;
case IPV6_MTU_DISCOVER:
- if (val<0 || val>2)
+ if (val<0 || val>3)
goto e_inval;
np->pmtudisc = val;
retv = 0;
return err;
}
+EXPORT_SYMBOL(ipv6_setsockopt);
#ifdef CONFIG_COMPAT
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
#endif
static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
- char __user *optval, int len)
+ int optname, char __user *optval, int len)
{
struct ipv6_opt_hdr *hdr;
- if (!opt || !opt->hopopt)
+ if (!opt)
+ return 0;
+
+ switch(optname) {
+ case IPV6_HOPOPTS:
+ hdr = opt->hopopt;
+ break;
+ case IPV6_RTHDRDSTOPTS:
+ hdr = opt->dst0opt;
+ break;
+ case IPV6_RTHDR:
+ hdr = (struct ipv6_opt_hdr *)opt->srcrt;
+ break;
+ case IPV6_DSTOPTS:
+ hdr = opt->dst1opt;
+ break;
+ default:
+ return -EINVAL; /* should not happen */
+ }
+
+ if (!hdr)
return 0;
- hdr = opt->hopopt;
len = min_t(unsigned int, len, ipv6_optlen(hdr));
- if (copy_to_user(optval, hdr, ipv6_optlen(hdr)))
+ if (copy_to_user(optval, hdr, len));
return -EFAULT;
- return len;
+ return ipv6_optlen(hdr);
}
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
lock_sock(sk);
len = ipv6_getsockopt_sticky(sk, np->opt,
- optval, len);
+ optname, optval, len);
release_sock(sk);
return put_user(len, optlen);
}
return err;
}
+EXPORT_SYMBOL(ipv6_getsockopt);
+
#ifdef CONFIG_COMPAT
int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
+++ /dev/null
-
-#include <linux/module.h>
-#include <net/protocol.h>
-#include <net/ipv6.h>
-#include <net/addrconf.h>
-#include <net/ip6_route.h>
-#include <net/xfrm.h>
-
-EXPORT_SYMBOL(icmpv6_send);
-EXPORT_SYMBOL(icmpv6_statistics);
-EXPORT_SYMBOL(icmpv6_err_convert);
-EXPORT_SYMBOL(ndisc_mc_map);
-EXPORT_SYMBOL(register_inet6addr_notifier);
-EXPORT_SYMBOL(unregister_inet6addr_notifier);
-EXPORT_SYMBOL(ip6_route_output);
-EXPORT_SYMBOL(ipv6_setsockopt);
-EXPORT_SYMBOL(ipv6_getsockopt);
-EXPORT_SYMBOL(inet6_register_protosw);
-EXPORT_SYMBOL(inet6_unregister_protosw);
-EXPORT_SYMBOL(inet6_add_protocol);
-EXPORT_SYMBOL(inet6_del_protocol);
-EXPORT_SYMBOL(ip6_xmit);
-EXPORT_SYMBOL(inet6_release);
-EXPORT_SYMBOL(inet6_bind);
-EXPORT_SYMBOL(inet6_getname);
-EXPORT_SYMBOL(inet6_ioctl);
-EXPORT_SYMBOL(ipv6_get_saddr);
-EXPORT_SYMBOL(ipv6_chk_addr);
-EXPORT_SYMBOL(in6_dev_finish_destroy);
-#ifdef CONFIG_XFRM
-EXPORT_SYMBOL(xfrm6_rcv);
-EXPORT_SYMBOL(xfrm6_input_addr);
-EXPORT_SYMBOL(xfrm6_find_1stfragopt);
-#endif
-EXPORT_SYMBOL(rt6_lookup);
-EXPORT_SYMBOL(ipv6_push_nfrag_opts);
if (!pskb_may_pull(skb, sizeof(struct icmp6hdr)))
return 0;
- pic = (struct icmp6hdr *)skb->h.raw;
+ pic = icmp6_hdr(skb);
switch (pic->icmp6_type) {
case ICMPV6_MGM_QUERY:
return -EINVAL;
/* compute payload length excluding extension headers */
- len = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
- len -= (char *)skb->h.raw - (char *)skb->nh.ipv6h;
+ len = ntohs(ipv6_hdr(skb)->payload_len) + sizeof(struct ipv6hdr);
+ len -= skb_network_header_len(skb);
/* Drop queries with not link local source */
- if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr)&IPV6_ADDR_LINKLOCAL))
+ if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL))
return -EINVAL;
idev = in6_dev_get(skb->dev);
if (idev == NULL)
return 0;
- hdr = (struct icmp6hdr *) skb->h.raw;
+ hdr = icmp6_hdr(skb);
group = (struct in6_addr *) (hdr + 1);
group_type = ipv6_addr_type(group);
in6_dev_put(idev);
return -EINVAL;
}
- mlh2 = (struct mld2_query *) skb->h.raw;
+ mlh2 = (struct mld2_query *)skb_transport_header(skb);
max_delay = (MLDV2_MRC(ntohs(mlh2->mrc))*HZ)/1000;
if (!max_delay)
max_delay = 1;
in6_dev_put(idev);
return -EINVAL;
}
- mlh2 = (struct mld2_query *) skb->h.raw;
+ mlh2 = (struct mld2_query *)skb_transport_header(skb);
mark = 1;
}
} else {
if (!pskb_may_pull(skb, sizeof(struct in6_addr)))
return -EINVAL;
- hdr = (struct icmp6hdr*) skb->h.raw;
+ hdr = icmp6_hdr(skb);
/* Drop reports with not link local source */
- addr_type = ipv6_addr_type(&skb->nh.ipv6h->saddr);
+ addr_type = ipv6_addr_type(&ipv6_hdr(skb)->saddr);
if (addr_type != IPV6_ADDR_ANY &&
!(addr_type&IPV6_ADDR_LINKLOCAL))
return -EINVAL;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- if (ipv6_get_lladdr(dev, &addr_buf)) {
+ if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
/* <draft-ietf-magma-mld-source-05.txt>:
* use unspecified address as the source address
* when a valid link-local address is not available.
memcpy(skb_put(skb, sizeof(ra)), ra, sizeof(ra));
- pmr =(struct mld2_report *)skb_put(skb, sizeof(*pmr));
- skb->h.raw = (unsigned char *)pmr;
+ skb_set_transport_header(skb, skb_tail_pointer(skb) - skb->data);
+ skb_put(skb, sizeof(*pmr));
+ pmr = (struct mld2_report *)skb_transport_header(skb);
pmr->type = ICMPV6_MLD2_REPORT;
pmr->resv1 = 0;
pmr->csum = 0;
unsigned char ha[MAX_ADDR_LEN];
int err;
- ndisc_mc_map(&skb->nh.ipv6h->daddr, ha, dev, 1);
+ ndisc_mc_map(&ipv6_hdr(skb)->daddr, ha, dev, 1);
err = dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len);
if (err < 0) {
kfree_skb(skb);
static void mld_sendpack(struct sk_buff *skb)
{
- struct ipv6hdr *pip6 = skb->nh.ipv6h;
- struct mld2_report *pmr = (struct mld2_report *)skb->h.raw;
+ struct ipv6hdr *pip6 = ipv6_hdr(skb);
+ struct mld2_report *pmr =
+ (struct mld2_report *)skb_transport_header(skb);
int payload_len, mldlen;
struct inet6_dev *idev = in6_dev_get(skb->dev);
int err;
IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
- payload_len = skb->tail - (unsigned char *)skb->nh.ipv6h -
- sizeof(struct ipv6hdr);
- mldlen = skb->tail - skb->h.raw;
+ payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
+ mldlen = skb->tail - skb->transport_header;
pip6->payload_len = htons(payload_len);
pmr->csum = csum_ipv6_magic(&pip6->saddr, &pip6->daddr, mldlen,
- IPPROTO_ICMPV6, csum_partial(skb->h.raw, mldlen, 0));
+ IPPROTO_ICMPV6, csum_partial(skb_transport_header(skb),
+ mldlen, 0));
err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
mld_dev_queue_xmit);
if (!err) {
pgr->grec_auxwords = 0;
pgr->grec_nsrcs = 0;
pgr->grec_mca = pmc->mca_addr; /* structure copy */
- pmr = (struct mld2_report *)skb->h.raw;
+ pmr = (struct mld2_report *)skb_transport_header(skb);
pmr->ngrec = htons(ntohs(pmr->ngrec)+1);
*ppgr = pgr;
return skb;
if (!*psf_list)
goto empty_source;
- pmr = skb ? (struct mld2_report *)skb->h.raw : NULL;
+ pmr = skb ? (struct mld2_report *)skb_transport_header(skb) : NULL;
/* EX and TO_EX get a fresh packet, if needed */
if (truncate) {
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- if (ipv6_get_lladdr(dev, &addr_buf)) {
+ if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
/* <draft-ietf-magma-mld-source-05.txt>:
* use unspecified address as the source address
* when a valid link-local address is not available.
{
struct ip6_mh *mh;
- if (!pskb_may_pull(skb, (skb->h.raw - skb->data) + 8) ||
- !pskb_may_pull(skb, (skb->h.raw - skb->data) + ((skb->h.raw[1] + 1) << 3)))
+ if (!pskb_may_pull(skb, (skb_transport_offset(skb)) + 8) ||
+ !pskb_may_pull(skb, (skb_transport_offset(skb) +
+ ((skb_transport_header(skb)[1] + 1) << 3))))
return -1;
- mh = (struct ip6_mh *)skb->h.raw;
+ mh = (struct ip6_mh *)skb_transport_header(skb);
if (mh->ip6mh_hdrlen < mip6_mh_len(mh->ip6mh_type)) {
LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH message too short: %d vs >=%d\n",
mh->ip6mh_hdrlen, mip6_mh_len(mh->ip6mh_type));
- mip6_param_prob(skb, 0, (&mh->ip6mh_hdrlen) - skb->nh.raw);
+ mip6_param_prob(skb, 0, ((&mh->ip6mh_hdrlen) -
+ skb_network_header(skb)));
return -1;
}
if (mh->ip6mh_proto != IPPROTO_NONE) {
LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH invalid payload proto = %d\n",
mh->ip6mh_proto);
- mip6_param_prob(skb, 0, (&mh->ip6mh_proto) - skb->nh.raw);
+ mip6_param_prob(skb, 0, ((&mh->ip6mh_proto) -
+ skb_network_header(skb)));
return -1;
}
};
static struct mip6_report_rate_limiter mip6_report_rl = {
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(mip6_report_rl.lock)
};
static int mip6_destopt_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct ipv6_destopt_hdr *destopt = (struct ipv6_destopt_hdr *)skb->data;
if (!ipv6_addr_equal(&iph->saddr, (struct in6_addr *)x->coaddr) &&
iph = (struct ipv6hdr *)skb->data;
iph->payload_len = htons(skb->len - sizeof(*iph));
- nexthdr = *skb->nh.raw;
- *skb->nh.raw = IPPROTO_DSTOPTS;
+ nexthdr = *skb_network_header(skb);
+ *skb_network_header(skb) = IPPROTO_DSTOPTS;
- dstopt = (struct ipv6_destopt_hdr *)skb->h.raw;
+ dstopt = (struct ipv6_destopt_hdr *)skb_transport_header(skb);
dstopt->nexthdr = nexthdr;
hao = mip6_padn((char *)(dstopt + 1),
if (likely(opt->dsthao)) {
offset = ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO);
if (likely(offset >= 0))
- hao = (struct ipv6_destopt_hao *)(skb->nh.raw + offset);
+ hao = (struct ipv6_destopt_hao *)
+ (skb_network_header(skb) + offset);
}
skb_get_timestamp(skb, &stamp);
- if (!mip6_report_rl_allow(&stamp, &skb->nh.ipv6h->daddr,
- hao ? &hao->addr : &skb->nh.ipv6h->saddr,
+ if (!mip6_report_rl_allow(&stamp, &ipv6_hdr(skb)->daddr,
+ hao ? &hao->addr : &ipv6_hdr(skb)->saddr,
opt->iif))
goto out;
memset(&sel, 0, sizeof(sel));
- memcpy(&sel.daddr, (xfrm_address_t *)&skb->nh.ipv6h->daddr,
+ memcpy(&sel.daddr, (xfrm_address_t *)&ipv6_hdr(skb)->daddr,
sizeof(sel.daddr));
sel.prefixlen_d = 128;
- memcpy(&sel.saddr, (xfrm_address_t *)&skb->nh.ipv6h->saddr,
+ memcpy(&sel.saddr, (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
sizeof(sel.saddr));
sel.prefixlen_s = 128;
sel.family = AF_INET6;
u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
- unsigned int packet_len = skb->tail - skb->nh.raw;
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
+ const unsigned char *nh = skb_network_header(skb);
+ unsigned int packet_len = skb->tail - skb->network_header;
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
offset += ipv6_optlen(exthdr);
*nexthdr = &exthdr->nexthdr;
- exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+ exthdr = (struct ipv6_opt_hdr *)(nh + offset);
}
return offset;
iph = (struct ipv6hdr *)skb->data;
iph->payload_len = htons(skb->len - sizeof(*iph));
- nexthdr = *skb->nh.raw;
- *skb->nh.raw = IPPROTO_ROUTING;
+ nexthdr = *skb_network_header(skb);
+ *skb_network_header(skb) = IPPROTO_ROUTING;
- rt2 = (struct rt2_hdr *)skb->h.raw;
+ rt2 = (struct rt2_hdr *)skb_transport_header(skb);
rt2->rt_hdr.nexthdr = nexthdr;
rt2->rt_hdr.hdrlen = (x->props.header_len >> 3) - 1;
rt2->rt_hdr.type = IPV6_SRCRT_TYPE_2;
u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
- unsigned int packet_len = skb->tail - skb->nh.raw;
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
+ const unsigned char *nh = skb_network_header(skb);
+ unsigned int packet_len = skb->tail - skb->network_header;
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
case NEXTHDR_ROUTING:
if (offset + 3 <= packet_len) {
struct ipv6_rt_hdr *rt;
- rt = (struct ipv6_rt_hdr *)(skb->nh.raw + offset);
+ rt = (struct ipv6_rt_hdr *)(nh + offset);
if (rt->type != 0)
return offset;
}
offset += ipv6_optlen(exthdr);
*nexthdr = &exthdr->nexthdr;
- exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+ exthdr = (struct ipv6_opt_hdr *)(nh + offset);
}
return offset;
return -EINVAL;
}
+EXPORT_SYMBOL(ndisc_mc_map);
+
static u32 ndisc_hash(const void *pkey, const struct net_device *dev)
{
const u32 *p32 = pkey;
security_sk_classify_flow(ndisc_socket->sk, fl);
}
-static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
- struct in6_addr *daddr, struct in6_addr *solicited_addr,
- int router, int solicited, int override, int inc_opt)
+static void __ndisc_send(struct net_device *dev,
+ struct neighbour *neigh,
+ struct in6_addr *daddr, struct in6_addr *saddr,
+ struct icmp6hdr *icmp6h, struct in6_addr *target,
+ int llinfo, int icmp6_mib_outnd)
{
- struct in6_addr tmpaddr;
- struct inet6_ifaddr *ifp;
- struct inet6_dev *idev;
struct flowi fl;
- struct dst_entry* dst;
+ struct dst_entry *dst;
struct sock *sk = ndisc_socket->sk;
- struct in6_addr *src_addr;
- struct nd_msg *msg;
- int len;
struct sk_buff *skb;
+ struct icmp6hdr *hdr;
+ struct inet6_dev *idev;
+ int len;
int err;
+ u8 *opt;
- len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
-
- /* for anycast or proxy, solicited_addr != src_addr */
- ifp = ipv6_get_ifaddr(solicited_addr, dev, 1);
- if (ifp) {
- src_addr = solicited_addr;
- in6_ifa_put(ifp);
- } else {
- if (ipv6_dev_get_saddr(dev, daddr, &tmpaddr))
- return;
- src_addr = &tmpaddr;
- }
-
- ndisc_flow_init(&fl, NDISC_NEIGHBOUR_ADVERTISEMENT, src_addr, daddr,
+ ndisc_flow_init(&fl, icmp6h->icmp6_type, saddr, daddr,
dev->ifindex);
dst = ndisc_dst_alloc(dev, neigh, daddr, ip6_output);
if (err < 0)
return;
- if (inc_opt) {
- if (dev->addr_len)
- len += ndisc_opt_addr_space(dev);
- else
- inc_opt = 0;
- }
+ if (!dev->addr_len)
+ llinfo = 0;
+
+ len = sizeof(struct icmp6hdr) + (target ? sizeof(*target) : 0);
+ if (llinfo)
+ len += ndisc_opt_addr_space(dev);
skb = sock_alloc_send_skb(sk,
(MAX_HEADER + sizeof(struct ipv6hdr) +
len + LL_RESERVED_SPACE(dev)),
1, &err);
-
- if (skb == NULL) {
+ if (!skb) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 NA: %s() failed to allocate an skb.\n",
+ "ICMPv6 ND: %s() failed to allocate an skb.\n",
__FUNCTION__);
dst_release(dst);
return;
}
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- ip6_nd_hdr(sk, skb, dev, src_addr, daddr, IPPROTO_ICMPV6, len);
-
- msg = (struct nd_msg *)skb_put(skb, len);
- skb->h.raw = (unsigned char*)msg;
+ ip6_nd_hdr(sk, skb, dev, saddr, daddr, IPPROTO_ICMPV6, len);
- msg->icmph.icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT;
- msg->icmph.icmp6_code = 0;
- msg->icmph.icmp6_cksum = 0;
+ skb->transport_header = skb->tail;
+ skb_put(skb, len);
- msg->icmph.icmp6_unused = 0;
- msg->icmph.icmp6_router = router;
- msg->icmph.icmp6_solicited = solicited;
- msg->icmph.icmp6_override = override;
+ hdr = (struct icmp6hdr *)skb_transport_header(skb);
+ memcpy(hdr, icmp6h, sizeof(*hdr));
- /* Set the target address. */
- ipv6_addr_copy(&msg->target, solicited_addr);
+ opt = skb_transport_header(skb) + sizeof(struct icmp6hdr);
+ if (target) {
+ ipv6_addr_copy((struct in6_addr *)opt, target);
+ opt += sizeof(*target);
+ }
- if (inc_opt)
- ndisc_fill_addr_option(msg->opt, ND_OPT_TARGET_LL_ADDR, dev->dev_addr,
+ if (llinfo)
+ ndisc_fill_addr_option(opt, llinfo, dev->dev_addr,
dev->addr_len, dev->type);
- /* checksum */
- msg->icmph.icmp6_cksum = csum_ipv6_magic(src_addr, daddr, len,
- IPPROTO_ICMPV6,
- csum_partial((__u8 *) msg,
- len, 0));
+ hdr->icmp6_cksum = csum_ipv6_magic(saddr, daddr, len,
+ IPPROTO_ICMPV6,
+ csum_partial((__u8 *) hdr,
+ len, 0));
skb->dst = dst;
+
idev = in6_dev_get(dst->dev);
IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
+
err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, dst_output);
if (!err) {
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS);
+ ICMP6_INC_STATS(idev, icmp6_mib_outnd);
ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
}
in6_dev_put(idev);
}
+static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
+ struct in6_addr *daddr, struct in6_addr *solicited_addr,
+ int router, int solicited, int override, int inc_opt)
+{
+ struct in6_addr tmpaddr;
+ struct inet6_ifaddr *ifp;
+ struct in6_addr *src_addr;
+ struct icmp6hdr icmp6h = {
+ .icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT,
+ };
+
+ /* for anycast or proxy, solicited_addr != src_addr */
+ ifp = ipv6_get_ifaddr(solicited_addr, dev, 1);
+ if (ifp) {
+ src_addr = solicited_addr;
+ if (ifp->flags & IFA_F_OPTIMISTIC)
+ override = 0;
+ in6_ifa_put(ifp);
+ } else {
+ if (ipv6_dev_get_saddr(dev, daddr, &tmpaddr))
+ return;
+ src_addr = &tmpaddr;
+ }
+
+ icmp6h.icmp6_router = router;
+ icmp6h.icmp6_solicited = solicited;
+ icmp6h.icmp6_override = override;
+
+ __ndisc_send(dev, neigh, daddr, src_addr,
+ &icmp6h, solicited_addr,
+ inc_opt ? ND_OPT_TARGET_LL_ADDR : 0,
+ ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS);
+}
+
void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
struct in6_addr *solicit,
struct in6_addr *daddr, struct in6_addr *saddr)
{
- struct flowi fl;
- struct dst_entry* dst;
- struct inet6_dev *idev;
- struct sock *sk = ndisc_socket->sk;
- struct sk_buff *skb;
- struct nd_msg *msg;
struct in6_addr addr_buf;
- int len;
- int err;
- int send_llinfo;
+ struct icmp6hdr icmp6h = {
+ .icmp6_type = NDISC_NEIGHBOUR_SOLICITATION,
+ };
if (saddr == NULL) {
- if (ipv6_get_lladdr(dev, &addr_buf))
+ if (ipv6_get_lladdr(dev, &addr_buf,
+ (IFA_F_TENTATIVE|IFA_F_OPTIMISTIC)))
return;
saddr = &addr_buf;
}
- ndisc_flow_init(&fl, NDISC_NEIGHBOUR_SOLICITATION, saddr, daddr,
- dev->ifindex);
-
- dst = ndisc_dst_alloc(dev, neigh, daddr, ip6_output);
- if (!dst)
- return;
-
- err = xfrm_lookup(&dst, &fl, NULL, 0);
- if (err < 0)
- return;
-
- len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
- send_llinfo = dev->addr_len && !ipv6_addr_any(saddr);
- if (send_llinfo)
- len += ndisc_opt_addr_space(dev);
-
- skb = sock_alloc_send_skb(sk,
- (MAX_HEADER + sizeof(struct ipv6hdr) +
- len + LL_RESERVED_SPACE(dev)),
- 1, &err);
- if (skb == NULL) {
- ND_PRINTK0(KERN_ERR
- "ICMPv6 NA: %s() failed to allocate an skb.\n",
- __FUNCTION__);
- dst_release(dst);
- return;
- }
-
- skb_reserve(skb, LL_RESERVED_SPACE(dev));
- ip6_nd_hdr(sk, skb, dev, saddr, daddr, IPPROTO_ICMPV6, len);
-
- msg = (struct nd_msg *)skb_put(skb, len);
- skb->h.raw = (unsigned char*)msg;
- msg->icmph.icmp6_type = NDISC_NEIGHBOUR_SOLICITATION;
- msg->icmph.icmp6_code = 0;
- msg->icmph.icmp6_cksum = 0;
- msg->icmph.icmp6_unused = 0;
-
- /* Set the target address. */
- ipv6_addr_copy(&msg->target, solicit);
-
- if (send_llinfo)
- ndisc_fill_addr_option(msg->opt, ND_OPT_SOURCE_LL_ADDR, dev->dev_addr,
- dev->addr_len, dev->type);
-
- /* checksum */
- msg->icmph.icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- daddr, len,
- IPPROTO_ICMPV6,
- csum_partial((__u8 *) msg,
- len, 0));
- /* send it! */
- skb->dst = dst;
- idev = in6_dev_get(dst->dev);
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
- err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, dst_output);
- if (!err) {
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTNEIGHBORSOLICITS);
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
- }
-
- if (likely(idev != NULL))
- in6_dev_put(idev);
+ __ndisc_send(dev, neigh, daddr, saddr,
+ &icmp6h, solicit,
+ !ipv6_addr_any(saddr) ? ND_OPT_SOURCE_LL_ADDR : 0,
+ ICMP6_MIB_OUTNEIGHBORSOLICITS);
}
void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
struct in6_addr *daddr)
{
- struct flowi fl;
- struct dst_entry* dst;
- struct inet6_dev *idev;
- struct sock *sk = ndisc_socket->sk;
- struct sk_buff *skb;
- struct icmp6hdr *hdr;
- __u8 * opt;
- int len;
- int err;
-
- ndisc_flow_init(&fl, NDISC_ROUTER_SOLICITATION, saddr, daddr,
- dev->ifindex);
-
- dst = ndisc_dst_alloc(dev, NULL, daddr, ip6_output);
- if (!dst)
- return;
-
- err = xfrm_lookup(&dst, &fl, NULL, 0);
- if (err < 0)
- return;
-
- len = sizeof(struct icmp6hdr);
- if (dev->addr_len)
- len += ndisc_opt_addr_space(dev);
-
- skb = sock_alloc_send_skb(sk,
- (MAX_HEADER + sizeof(struct ipv6hdr) +
- len + LL_RESERVED_SPACE(dev)),
- 1, &err);
- if (skb == NULL) {
- ND_PRINTK0(KERN_ERR
- "ICMPv6 RS: %s() failed to allocate an skb.\n",
- __FUNCTION__);
- dst_release(dst);
- return;
- }
-
- skb_reserve(skb, LL_RESERVED_SPACE(dev));
- ip6_nd_hdr(sk, skb, dev, saddr, daddr, IPPROTO_ICMPV6, len);
-
- hdr = (struct icmp6hdr *)skb_put(skb, len);
- skb->h.raw = (unsigned char*)hdr;
- hdr->icmp6_type = NDISC_ROUTER_SOLICITATION;
- hdr->icmp6_code = 0;
- hdr->icmp6_cksum = 0;
- hdr->icmp6_unused = 0;
-
- opt = (u8*) (hdr + 1);
-
- if (dev->addr_len)
- ndisc_fill_addr_option(opt, ND_OPT_SOURCE_LL_ADDR, dev->dev_addr,
- dev->addr_len, dev->type);
-
- /* checksum */
- hdr->icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr, daddr, len,
- IPPROTO_ICMPV6,
- csum_partial((__u8 *) hdr, len, 0));
+ struct icmp6hdr icmp6h = {
+ .icmp6_type = NDISC_ROUTER_SOLICITATION,
+ };
+ int send_sllao = dev->addr_len;
- /* send it! */
- skb->dst = dst;
- idev = in6_dev_get(dst->dev);
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
- err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev, dst_output);
- if (!err) {
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTROUTERSOLICITS);
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+ /*
+ * According to section 2.2 of RFC 4429, we must not
+ * send router solicitations with a sllao from
+ * optimistic addresses, but we may send the solicitation
+ * if we don't include the sllao. So here we check
+ * if our address is optimistic, and if so, we
+ * supress the inclusion of the sllao.
+ */
+ if (send_sllao) {
+ struct inet6_ifaddr *ifp = ipv6_get_ifaddr(saddr, dev, 1);
+ if (ifp) {
+ if (ifp->flags & IFA_F_OPTIMISTIC) {
+ send_sllao = 0;
+ }
+ in6_ifa_put(ifp);
+ } else {
+ send_sllao = 0;
+ }
}
-
- if (likely(idev != NULL))
- in6_dev_put(idev);
+#endif
+ __ndisc_send(dev, NULL, daddr, saddr,
+ &icmp6h, NULL,
+ send_sllao ? ND_OPT_SOURCE_LL_ADDR : 0,
+ ICMP6_MIB_OUTROUTERSOLICITS);
}
struct in6_addr *target = (struct in6_addr *)&neigh->primary_key;
int probes = atomic_read(&neigh->probes);
- if (skb && ipv6_chk_addr(&skb->nh.ipv6h->saddr, dev, 1))
- saddr = &skb->nh.ipv6h->saddr;
+ if (skb && ipv6_chk_addr(&ipv6_hdr(skb)->saddr, dev, 1))
+ saddr = &ipv6_hdr(skb)->saddr;
if ((probes -= neigh->parms->ucast_probes) < 0) {
if (!(neigh->nud_state & NUD_VALID)) {
static void ndisc_recv_ns(struct sk_buff *skb)
{
- struct nd_msg *msg = (struct nd_msg *)skb->h.raw;
- struct in6_addr *saddr = &skb->nh.ipv6h->saddr;
- struct in6_addr *daddr = &skb->nh.ipv6h->daddr;
+ struct nd_msg *msg = (struct nd_msg *)skb_transport_header(skb);
+ struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
u8 *lladdr = NULL;
- u32 ndoptlen = skb->tail - msg->opt;
+ u32 ndoptlen = skb->tail - (skb->transport_header +
+ offsetof(struct nd_msg, opt));
struct ndisc_options ndopts;
struct net_device *dev = skb->dev;
struct inet6_ifaddr *ifp;
inc = ipv6_addr_is_multicast(daddr);
if ((ifp = ipv6_get_ifaddr(&msg->target, dev, 1)) != NULL) {
- if (ifp->flags & IFA_F_TENTATIVE) {
- /* Address is tentative. If the source
- is unspecified address, it is someone
- does DAD, otherwise we ignore solicitations
- until DAD timer expires.
- */
- if (!dad)
+
+ if (ifp->flags & (IFA_F_TENTATIVE|IFA_F_OPTIMISTIC)) {
+ if (dad) {
+ if (dev->type == ARPHRD_IEEE802_TR) {
+ const unsigned char *sadr;
+ sadr = skb_mac_header(skb);
+ if (((sadr[8] ^ dev->dev_addr[0]) & 0x7f) == 0 &&
+ sadr[9] == dev->dev_addr[1] &&
+ sadr[10] == dev->dev_addr[2] &&
+ sadr[11] == dev->dev_addr[3] &&
+ sadr[12] == dev->dev_addr[4] &&
+ sadr[13] == dev->dev_addr[5]) {
+ /* looped-back to us */
+ goto out;
+ }
+ }
+
+ /*
+ * We are colliding with another node
+ * who is doing DAD
+ * so fail our DAD process
+ */
+ addrconf_dad_failure(ifp);
goto out;
- if (dev->type == ARPHRD_IEEE802_TR) {
- unsigned char *sadr = skb->mac.raw;
- if (((sadr[8] ^ dev->dev_addr[0]) & 0x7f) == 0 &&
- sadr[9] == dev->dev_addr[1] &&
- sadr[10] == dev->dev_addr[2] &&
- sadr[11] == dev->dev_addr[3] &&
- sadr[12] == dev->dev_addr[4] &&
- sadr[13] == dev->dev_addr[5]) {
- /* looped-back to us */
+ } else {
+ /*
+ * This is not a dad solicitation.
+ * If we are an optimistic node,
+ * we should respond.
+ * Otherwise, we should ignore it.
+ */
+ if (!(ifp->flags & IFA_F_OPTIMISTIC))
goto out;
- }
}
- addrconf_dad_failure(ifp);
- return;
}
idev = ifp->idev;
static void ndisc_recv_na(struct sk_buff *skb)
{
- struct nd_msg *msg = (struct nd_msg *)skb->h.raw;
- struct in6_addr *saddr = &skb->nh.ipv6h->saddr;
- struct in6_addr *daddr = &skb->nh.ipv6h->daddr;
+ struct nd_msg *msg = (struct nd_msg *)skb_transport_header(skb);
+ struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
u8 *lladdr = NULL;
- u32 ndoptlen = skb->tail - msg->opt;
+ u32 ndoptlen = skb->tail - (skb->transport_header +
+ offsetof(struct nd_msg, opt));
struct ndisc_options ndopts;
struct net_device *dev = skb->dev;
struct inet6_ifaddr *ifp;
static void ndisc_recv_rs(struct sk_buff *skb)
{
- struct rs_msg *rs_msg = (struct rs_msg *) skb->h.raw;
+ struct rs_msg *rs_msg = (struct rs_msg *)skb_transport_header(skb);
unsigned long ndoptlen = skb->len - sizeof(*rs_msg);
struct neighbour *neigh;
struct inet6_dev *idev;
- struct in6_addr *saddr = &skb->nh.ipv6h->saddr;
+ struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
struct ndisc_options ndopts;
u8 *lladdr = NULL;
static void ndisc_router_discovery(struct sk_buff *skb)
{
- struct ra_msg *ra_msg = (struct ra_msg *) skb->h.raw;
+ struct ra_msg *ra_msg = (struct ra_msg *)skb_transport_header(skb);
struct neighbour *neigh = NULL;
struct inet6_dev *in6_dev;
struct rt6_info *rt = NULL;
__u8 * opt = (__u8 *)(ra_msg + 1);
- optlen = (skb->tail - skb->h.raw) - sizeof(struct ra_msg);
+ optlen = (skb->tail - skb->transport_header) - sizeof(struct ra_msg);
- if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr) & IPV6_ADDR_LINKLOCAL)) {
+ if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 RA: source address is not link-local.\n");
return;
pref = ICMPV6_ROUTER_PREF_MEDIUM;
#endif
- rt = rt6_get_dflt_router(&skb->nh.ipv6h->saddr, skb->dev);
+ rt = rt6_get_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev);
if (rt)
neigh = rt->rt6i_nexthop;
ND_PRINTK3(KERN_DEBUG
"ICMPv6 RA: adding default router.\n");
- rt = rt6_add_dflt_router(&skb->nh.ipv6h->saddr, skb->dev, pref);
+ rt = rt6_add_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev, pref);
if (rt == NULL) {
ND_PRINTK0(KERN_ERR
"ICMPv6 RA: %s() failed to add default route.\n",
*/
if (!neigh)
- neigh = __neigh_lookup(&nd_tbl, &skb->nh.ipv6h->saddr,
+ neigh = __neigh_lookup(&nd_tbl, &ipv6_hdr(skb)->saddr,
skb->dev, 1);
if (neigh) {
u8 *lladdr = NULL;
if (((struct route_info *)p)->prefix_len > in6_dev->cnf.accept_ra_rt_info_max_plen)
continue;
rt6_route_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3,
- &skb->nh.ipv6h->saddr);
+ &ipv6_hdr(skb)->saddr);
}
}
#endif
int optlen;
u8 *lladdr = NULL;
- if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr) & IPV6_ADDR_LINKLOCAL)) {
+ if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: source address is not link-local.\n");
return;
}
- optlen = skb->tail - skb->h.raw;
+ optlen = skb->tail - skb->transport_header;
optlen -= sizeof(struct icmp6hdr) + 2 * sizeof(struct in6_addr);
if (optlen < 0) {
return;
}
- icmph = (struct icmp6hdr *) skb->h.raw;
+ icmph = icmp6_hdr(skb);
target = (struct in6_addr *) (icmph + 1);
dest = target + 1;
neigh = __neigh_lookup(&nd_tbl, target, skb->dev, 1);
if (neigh) {
- rt6_redirect(dest, &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr, neigh, lladdr,
+ rt6_redirect(dest, &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr, neigh, lladdr,
on_link);
neigh_release(neigh);
}
dev = skb->dev;
- if (ipv6_get_lladdr(dev, &saddr_buf)) {
+ if (ipv6_get_lladdr(dev, &saddr_buf, IFA_F_TENTATIVE)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: no link-local address on %s\n",
dev->name);
return;
}
- if (!ipv6_addr_equal(&skb->nh.ipv6h->daddr, target) &&
+ if (!ipv6_addr_equal(&ipv6_hdr(skb)->daddr, target) &&
!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: target address is not link-local.\n");
return;
}
- ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &skb->nh.ipv6h->saddr,
+ ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &ipv6_hdr(skb)->saddr,
dev->ifindex);
dst = ip6_route_output(NULL, &fl);
hlen = 0;
skb_reserve(buff, LL_RESERVED_SPACE(dev));
- ip6_nd_hdr(sk, buff, dev, &saddr_buf, &skb->nh.ipv6h->saddr,
+ ip6_nd_hdr(sk, buff, dev, &saddr_buf, &ipv6_hdr(skb)->saddr,
IPPROTO_ICMPV6, len);
- icmph = (struct icmp6hdr *)skb_put(buff, len);
- buff->h.raw = (unsigned char*)icmph;
+ skb_set_transport_header(buff, skb_tail_pointer(buff) - buff->data);
+ skb_put(buff, len);
+ icmph = icmp6_hdr(buff);
memset(icmph, 0, sizeof(struct icmp6hdr));
icmph->icmp6_type = NDISC_REDIRECT;
addrp = (struct in6_addr *)(icmph + 1);
ipv6_addr_copy(addrp, target);
addrp++;
- ipv6_addr_copy(addrp, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(addrp, &ipv6_hdr(skb)->daddr);
opt = (u8*) (addrp + 1);
*(opt++) = (rd_len >> 3);
opt += 6;
- memcpy(opt, skb->nh.ipv6h, rd_len - 8);
+ memcpy(opt, ipv6_hdr(skb), rd_len - 8);
- icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &skb->nh.ipv6h->saddr,
+ icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &ipv6_hdr(skb)->saddr,
len, IPPROTO_ICMPV6,
csum_partial((u8 *) icmph, len, 0));
if (!pskb_may_pull(skb, skb->len))
return 0;
- msg = (struct nd_msg *) skb->h.raw;
+ msg = (struct nd_msg *)skb_transport_header(skb);
- __skb_push(skb, skb->data-skb->h.raw);
+ __skb_push(skb, skb->data - skb_transport_header(skb));
- if (skb->nh.ipv6h->hop_limit != 255) {
+ if (ipv6_hdr(skb)->hop_limit != 255) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 NDISC: invalid hop-limit: %d\n",
- skb->nh.ipv6h->hop_limit);
+ ipv6_hdr(skb)->hop_limit);
return 0;
}
case NDISC_REDIRECT:
ndisc_redirect_rcv(skb);
break;
- };
+ }
return 0;
}
int ip6_route_me_harder(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct dst_entry *dst;
struct flowi fl = {
.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
struct ip6_rt_info *rt_info = nf_info_reroute(info);
if (info->hook == NF_IP6_LOCAL_OUT) {
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
rt_info->daddr = iph->daddr;
rt_info->saddr = iph->saddr;
struct ip6_rt_info *rt_info = nf_info_reroute(info);
if (info->hook == NF_IP6_LOCAL_OUT) {
- struct ipv6hdr *iph = (*pskb)->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(*pskb);
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
!ipv6_addr_equal(&iph->saddr, &rt_info->saddr))
return ip6_route_me_harder(*pskb);
__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
- struct ipv6hdr *ip6h = skb->nh.ipv6h;
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
__sum16 csum = 0;
switch (skb->ip_summed) {
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 2001-11-06: First try. Working with ip_queue.c for IPv4 and trying
- * to adapt it to IPv6
- * HEAVILY based in ipqueue.c by James Morris. It's just
- * a little modified version of it, so he's nearly the
- * real coder of this.
- * Few changes needed, mainly the hard_routing code and
- * the netlink socket protocol (we're NETLINK_IP6_FW).
- * 2002-06-25: Code cleanup. [JM: ported cleanup over from ip_queue.c]
- * 2005-02-04: Added /proc counter for dropped packets; fixed so
- * packets aren't delivered to user space if they're going
- * to be dropped.
*/
#include <linux/module.h>
#include <linux/skbuff.h>
static struct sk_buff *
ipq_build_packet_message(struct ipq_queue_entry *entry, int *errp)
{
- unsigned char *old_tail;
+ sk_buff_data_t old_tail;
size_t size = 0;
size_t data_len = 0;
struct sk_buff *skb;
struct ipq_packet_msg *pmsg;
struct nlmsghdr *nlh;
+ struct timeval tv;
read_lock_bh(&queue_lock);
if (!skb)
goto nlmsg_failure;
- old_tail= skb->tail;
+ old_tail = skb->tail;
nlh = NLMSG_PUT(skb, 0, 0, IPQM_PACKET, size - sizeof(*nlh));
pmsg = NLMSG_DATA(nlh);
memset(pmsg, 0, sizeof(*pmsg));
pmsg->packet_id = (unsigned long )entry;
pmsg->data_len = data_len;
- pmsg->timestamp_sec = entry->skb->tstamp.off_sec;
- pmsg->timestamp_usec = entry->skb->tstamp.off_usec;
+ tv = ktime_to_timeval(entry->skb->tstamp);
+ pmsg->timestamp_sec = tv.tv_sec;
+ pmsg->timestamp_usec = tv.tv_usec;
pmsg->mark = entry->skb->mark;
pmsg->hook = entry->info->hook;
pmsg->hw_protocol = entry->skb->protocol;
}
if (!skb_make_writable(&e->skb, v->data_len))
return -ENOMEM;
- memcpy(e->skb->data, v->payload, v->data_len);
+ skb_copy_to_linear_data(e->skb, v->payload, v->data_len);
e->skb->ip_summed = CHECKSUM_NONE;
return 0;
if (skblen < sizeof(*nlh))
return;
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
nlmsglen = nlh->nlmsg_len;
if (nlmsglen < sizeof(*nlh) || skblen < nlmsglen)
return;
struct proc_dir_entry *proc;
netlink_register_notifier(&ipq_nl_notifier);
- ipqnl = netlink_kernel_create(NETLINK_IP6_FW, 0, ipq_rcv_sk,
+ ipqnl = netlink_kernel_create(NETLINK_IP6_FW, 0, ipq_rcv_sk, NULL,
THIS_MODULE);
if (ipqnl == NULL) {
printk(KERN_ERR "ip6_queue: failed to create netlink socket\n");
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 19 Jan 2002 Harald Welte <laforge@gnumonks.org>
- * - increase module usage count as soon as we have rules inside
- * a table
- * 06 Jun 2002 Andras Kis-Szabo <kisza@sch.bme.hu>
- * - new extension header parser code
- * 15 Oct 2005 Harald Welte <laforge@netfilter.org>
- * - Unification of {ip,ip6}_tables into x_tables
- * - Removed tcp and udp code, since it's not ipv6 specific
*/
#include <linux/capability.h>
{
size_t i;
unsigned long ret;
- const struct ipv6hdr *ipv6 = skb->nh.ipv6h;
+ const struct ipv6hdr *ipv6 = ipv6_hdr(skb);
#define FWINV(bool,invflg) ((bool) ^ !!(ip6info->invflags & invflg))
goto no_match;
ADD_COUNTER(e->counters,
- ntohs((*pskb)->nh.ipv6h->payload_len)
+ ntohs(ipv6_hdr(*pskb)->payload_len)
+ IPV6_HDR_LEN,
1);
int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
int target, unsigned short *fragoff)
{
- unsigned int start = (u8*)(skb->nh.ipv6h + 1) - skb->data;
- u8 nexthdr = skb->nh.ipv6h->nexthdr;
+ unsigned int start = skb_network_offset(skb) + sizeof(struct ipv6hdr);
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
unsigned int len = skb->len - start;
if (fragoff)
if (!skb_make_writable(pskb, (*pskb)->len))
return NF_DROP;
- ip6h = (*pskb)->nh.ipv6h;
+ ip6h = ipv6_hdr(*pskb);
switch (info->mode) {
case IP6T_HL_SET:
/* MAC logging for input chain only. */
printk("MAC=");
if (skb->dev && (len = skb->dev->hard_header_len) &&
- skb->mac.raw != skb->nh.raw) {
- unsigned char *p = skb->mac.raw;
+ skb->mac_header != skb->network_header) {
+ const unsigned char *p = skb_mac_header(skb);
int i;
if (skb->dev->type == ARPHRD_SIT &&
printk(" ");
if (skb->dev->type == ARPHRD_SIT) {
- struct iphdr *iph = (struct iphdr *)skb->mac.raw;
+ const struct iphdr *iph =
+ (struct iphdr *)skb_mac_header(skb);
printk("TUNNEL=%u.%u.%u.%u->%u.%u.%u.%u ",
NIPQUAD(iph->saddr),
NIPQUAD(iph->daddr));
printk(" ");
}
- dump_packet(loginfo, skb, (u8*)skb->nh.ipv6h - skb->data, 1);
+ dump_packet(loginfo, skb, skb_network_offset(skb), 1);
printk("\n");
spin_unlock_bh(&log_lock);
}
ret = xt_register_target(&ip6t_log_reg);
if (ret < 0)
return ret;
- if (nf_log_register(PF_INET6, &ip6t_logger) < 0) {
- printk(KERN_WARNING "ip6t_LOG: not logging via system console "
- "since somebody else already registered for PF_INET6\n");
- /* we cannot make module load fail here, since otherwise
- * ip6tables userspace would abort */
- }
-
- return 0;
+ ret = nf_log_register(PF_INET6, &ip6t_logger);
+ if (ret < 0 && ret != -EEXIST)
+ xt_unregister_target(&ip6t_log_reg);
+ return ret;
}
static void __exit ip6t_log_fini(void)
struct tcphdr otcph, *tcph;
unsigned int otcplen, hh_len;
int tcphoff, needs_ack;
- struct ipv6hdr *oip6h = oldskb->nh.ipv6h, *ip6h;
+ struct ipv6hdr *oip6h = ipv6_hdr(oldskb), *ip6h;
struct dst_entry *dst = NULL;
u8 proto;
struct flowi fl;
skb_reserve(nskb, hh_len + dst->header_len);
- ip6h = nskb->nh.ipv6h = (struct ipv6hdr *)
- skb_put(nskb, sizeof(struct ipv6hdr));
+ skb_put(nskb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(nskb);
+ ip6h = ipv6_hdr(nskb);
ip6h->version = 6;
ip6h->hop_limit = dst_metric(dst, RTAX_HOPLIMIT);
ip6h->nexthdr = IPPROTO_TCP;
tcph->check = 0;
/* Adjust TCP checksum */
- tcph->check = csum_ipv6_magic(&nskb->nh.ipv6h->saddr,
- &nskb->nh.ipv6h->daddr,
+ tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr,
+ &ipv6_hdr(nskb)->daddr,
sizeof(struct tcphdr), IPPROTO_TCP,
csum_partial((char *)tcph,
sizeof(struct tcphdr), 0));
unsigned char eui64[8];
int i = 0;
- if (!(skb->mac.raw >= skb->head &&
- (skb->mac.raw + ETH_HLEN) <= skb->data) &&
+ if (!(skb_mac_header(skb) >= skb->head &&
+ (skb_mac_header(skb) + ETH_HLEN) <= skb->data) &&
offset != 0) {
*hotdrop = 1;
return 0;
memset(eui64, 0, sizeof(eui64));
if (eth_hdr(skb)->h_proto == htons(ETH_P_IPV6)) {
- if (skb->nh.ipv6h->version == 0x6) {
+ if (ipv6_hdr(skb)->version == 0x6) {
memcpy(eui64, eth_hdr(skb)->h_source, 3);
memcpy(eui64 + 5, eth_hdr(skb)->h_source + 3, 3);
eui64[3] = 0xff;
eui64[0] |= 0x02;
i = 0;
- while ((skb->nh.ipv6h->saddr.s6_addr[8+i] == eui64[i])
+ while ((ipv6_hdr(skb)->saddr.s6_addr[8 + i] == eui64[i])
&& (i < 8))
i++;
int offset, unsigned int protoff, int *hotdrop)
{
const struct ip6t_hl_info *info = matchinfo;
- const struct ipv6hdr *ip6h = skb->nh.ipv6h;
+ const struct ipv6hdr *ip6h = ipv6_hdr(skb);
switch (info->mode) {
case IP6T_HL_EQ:
/* Make sure this isn't an evil packet */
/* type of the 1st exthdr */
- nexthdr = skb->nh.ipv6h->nexthdr;
+ nexthdr = ipv6_hdr(skb)->nexthdr;
/* pointer to the 1st exthdr */
ptr = sizeof(struct ipv6hdr);
/* available length */
#if 0
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr)) {
+ || ip_hdrlen(*pskb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ip6t_hook: happy cracking.\n");
return NF_ACCEPT;
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * Extended to all five netfilter hooks by Brad Chapman & Harald Welte
*/
#include <linux/module.h>
#include <linux/netfilter_ipv6/ip6_tables.h>
#if 0
/* root is playing with raw sockets. */
if ((*pskb)->len < sizeof(struct iphdr)
- || (*pskb)->nh.iph->ihl * 4 < sizeof(struct iphdr)) {
+ || ip_hdrlen(*pskb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ip6t_hook: happy cracking.\n");
return NF_ACCEPT;
#endif
/* save source/dest address, mark, hoplimit, flowlabel, priority, */
- memcpy(&saddr, &(*pskb)->nh.ipv6h->saddr, sizeof(saddr));
- memcpy(&daddr, &(*pskb)->nh.ipv6h->daddr, sizeof(daddr));
+ memcpy(&saddr, &ipv6_hdr(*pskb)->saddr, sizeof(saddr));
+ memcpy(&daddr, &ipv6_hdr(*pskb)->daddr, sizeof(daddr));
mark = (*pskb)->mark;
- hop_limit = (*pskb)->nh.ipv6h->hop_limit;
+ hop_limit = ipv6_hdr(*pskb)->hop_limit;
/* flowlabel and prio (includes version, which shouldn't change either */
- flowlabel = *((u_int32_t *) (*pskb)->nh.ipv6h);
+ flowlabel = *((u_int32_t *)ipv6_hdr(*pskb));
ret = ip6t_do_table(pskb, hook, in, out, &packet_mangler);
if (ret != NF_DROP && ret != NF_STOLEN
- && (memcmp(&(*pskb)->nh.ipv6h->saddr, &saddr, sizeof(saddr))
- || memcmp(&(*pskb)->nh.ipv6h->daddr, &daddr, sizeof(daddr))
+ && (memcmp(&ipv6_hdr(*pskb)->saddr, &saddr, sizeof(saddr))
+ || memcmp(&ipv6_hdr(*pskb)->daddr, &daddr, sizeof(daddr))
|| (*pskb)->mark != mark
- || (*pskb)->nh.ipv6h->hop_limit != hop_limit))
+ || ipv6_hdr(*pskb)->hop_limit != hop_limit))
return ip6_route_me_harder(*pskb) == 0 ? ret : NF_DROP;
return ret;
*
* Author:
* Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - support Layer 3 protocol independent connection tracking.
- * Based on the original ip_conntrack code which had the following
- * copyright information:
- * (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * 23 Mar 2004: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - add get_features() to support various size of conntrack
- * structures.
*/
#include <linux/types.h>
ipv6_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff,
u_int8_t *protonum)
{
- unsigned int extoff;
- unsigned char pnum;
- int protoff;
-
- extoff = (u8*)((*pskb)->nh.ipv6h + 1) - (*pskb)->data;
- pnum = (*pskb)->nh.ipv6h->nexthdr;
-
- protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
- (*pskb)->len - extoff);
-
+ unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
+ unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
+ int protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
+ (*pskb)->len - extoff);
/*
* (protoff == (*pskb)->len) mean that the packet doesn't have no data
* except of IPv6 & ext headers. but it's tracked anyway. - YK
struct nf_conn_help *help;
enum ip_conntrack_info ctinfo;
unsigned int ret, protoff;
- unsigned int extoff = (u8*)((*pskb)->nh.ipv6h + 1)
- - (*pskb)->data;
- unsigned char pnum = (*pskb)->nh.ipv6h->nexthdr;
+ unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
+ unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
/* This is where we call the helper: as the packet goes out. */
*
* Author:
* Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - ICMPv6 tracking support. Derived from the original ip_conntrack code
- * net/ipv4/netfilter/ip_conntrack_proto_icmp.c which had the following
- * copyright information:
- * (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
*/
#include <linux/types.h>
struct sk_buff *fragments;
int len;
int meat;
- struct timeval stamp;
+ ktime_t stamp;
unsigned int csum;
__u8 last_in; /* has first/last segment arrived? */
#define COMPLETE 4
ipv6_addr_copy(&fq->saddr, src);
ipv6_addr_copy(&fq->daddr, dst);
- init_timer(&fq->timer);
- fq->timer.function = nf_ct_frag6_expire;
- fq->timer.data = (long) fq;
+ setup_timer(&fq->timer, nf_ct_frag6_expire, (unsigned long)fq);
spin_lock_init(&fq->lock);
atomic_set(&fq->refcnt, 1);
}
offset = ntohs(fhdr->frag_off) & ~0x7;
- end = offset + (ntohs(skb->nh.ipv6h->payload_len) -
- ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1)));
+ end = offset + (ntohs(ipv6_hdr(skb)->payload_len) -
+ ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
if ((unsigned int)end > IPV6_MAXPLEN) {
DEBUGP("offset is too large.\n");
return -1;
}
- if (skb->ip_summed == CHECKSUM_COMPLETE)
+ if (skb->ip_summed == CHECKSUM_COMPLETE) {
+ const unsigned char *nh = skb_network_header(skb);
skb->csum = csum_sub(skb->csum,
- csum_partial(skb->nh.raw,
- (u8*)(fhdr + 1) - skb->nh.raw,
+ csum_partial(nh, (u8 *)(fhdr + 1) - nh,
0));
+ }
/* Is this the final fragment? */
if (!(fhdr->frag_off & htons(IP6_MF))) {
fq->fragments = skb;
skb->dev = NULL;
- skb_get_timestamp(skb, &fq->stamp);
+ fq->stamp = skb->tstamp;
fq->meat += skb->len;
atomic_add(skb->truesize, &nf_ct_frag6_mem);
BUG_TRAP(NFCT_FRAG6_CB(head)->offset == 0);
/* Unfragmented part is taken from the first segment. */
- payload_len = (head->data - head->nh.raw) - sizeof(struct ipv6hdr) + fq->len - sizeof(struct frag_hdr);
+ payload_len = ((head->data - skb_network_header(head)) -
+ sizeof(struct ipv6hdr) + fq->len -
+ sizeof(struct frag_hdr));
if (payload_len > IPV6_MAXPLEN) {
DEBUGP("payload len is too large.\n");
goto out_oversize;
/* We have to remove fragment header from datagram and to relocate
* header in order to calculate ICV correctly. */
- head->nh.raw[fq->nhoffset] = head->h.raw[0];
+ skb_network_header(head)[fq->nhoffset] = skb_transport_header(head)[0];
memmove(head->head + sizeof(struct frag_hdr), head->head,
(head->data - head->head) - sizeof(struct frag_hdr));
- head->mac.raw += sizeof(struct frag_hdr);
- head->nh.raw += sizeof(struct frag_hdr);
+ head->mac_header += sizeof(struct frag_hdr);
+ head->network_header += sizeof(struct frag_hdr);
skb_shinfo(head)->frag_list = head->next;
- head->h.raw = head->data;
- skb_push(head, head->data - head->nh.raw);
+ skb_reset_transport_header(head);
+ skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &nf_ct_frag6_mem);
for (fp=head->next; fp; fp = fp->next) {
head->next = NULL;
head->dev = dev;
- skb_set_timestamp(head, &fq->stamp);
- head->nh.ipv6h->payload_len = htons(payload_len);
+ head->tstamp = fq->stamp;
+ ipv6_hdr(head)->payload_len = htons(payload_len);
/* Yes, and fold redundant checksum back. 8) */
if (head->ip_summed == CHECKSUM_COMPLETE)
- head->csum = csum_partial(head->nh.raw, head->h.raw-head->nh.raw, head->csum);
+ head->csum = csum_partial(skb_network_header(head),
+ skb_network_header_len(head),
+ head->csum);
fq->fragments = NULL;
static int
find_prev_fhdr(struct sk_buff *skb, u8 *prevhdrp, int *prevhoff, int *fhoff)
{
- u8 nexthdr = skb->nh.ipv6h->nexthdr;
- u8 prev_nhoff = (u8 *)&skb->nh.ipv6h->nexthdr - skb->data;
- int start = (u8 *)(skb->nh.ipv6h+1) - skb->data;
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
+ const int netoff = skb_network_offset(skb);
+ u8 prev_nhoff = netoff + offsetof(struct ipv6hdr, nexthdr);
+ int start = netoff + sizeof(struct ipv6hdr);
int len = skb->len - start;
u8 prevhdr = NEXTHDR_IPV6;
struct sk_buff *ret_skb = NULL;
/* Jumbo payload inhibits frag. header */
- if (skb->nh.ipv6h->payload_len == 0) {
+ if (ipv6_hdr(skb)->payload_len == 0) {
DEBUGP("payload len = 0\n");
return skb;
}
goto ret_orig;
}
- clone->h.raw = clone->data + fhoff;
- hdr = clone->nh.ipv6h;
- fhdr = (struct frag_hdr *)clone->h.raw;
+ skb_set_transport_header(clone, fhoff);
+ hdr = ipv6_hdr(clone);
+ fhdr = (struct frag_hdr *)skb_transport_header(clone);
if (!(fhdr->frag_off & htons(0xFFF9))) {
DEBUGP("Invalid fragment offset\n");
nf_ct_frag6_hash_rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^
(jiffies ^ (jiffies >> 6)));
- init_timer(&nf_ct_frag6_secret_timer);
- nf_ct_frag6_secret_timer.function = nf_ct_frag6_secret_rebuild;
+ setup_timer(&nf_ct_frag6_secret_timer, nf_ct_frag6_secret_rebuild, 0);
nf_ct_frag6_secret_timer.expires = jiffies
+ nf_ct_frag6_secret_interval;
add_timer(&nf_ct_frag6_secret_timer);
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/stddef.h>
+#include <net/ip.h>
#include <net/sock.h>
#include <net/tcp.h>
#include <net/transp_v6.h>
#include <net/ipv6.h>
-#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_net_devsnmp6;
static int fold_prot_inuse(struct proto *proto)
SNMP_MIB_SENTINEL
};
-static unsigned long
-fold_field(void *mib[], int offt)
-{
- unsigned long res = 0;
- int i;
-
- for_each_possible_cpu(i) {
- res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
- res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
- }
- return res;
-}
-
static inline void
snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
{
int i;
for (i=0; itemlist[i].name; i++)
seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
- fold_field(mib, itemlist[i].entry));
+ snmp_fold_field(mib, itemlist[i].entry));
}
static int snmp6_seq_show(struct seq_file *seq, void *v)
proc_net_remove("snmp6");
}
-#else /* CONFIG_PROC_FS */
-
-
-int snmp6_register_dev(struct inet6_dev *idev)
-{
- return 0;
-}
-
-int snmp6_unregister_dev(struct inet6_dev *idev)
-{
- return 0;
-}
-#endif /* CONFIG_PROC_FS */
-
-int snmp6_alloc_dev(struct inet6_dev *idev)
-{
- int err = -ENOMEM;
-
- if (!idev || !idev->dev)
- return -EINVAL;
-
- if (snmp6_mib_init((void **)idev->stats.ipv6, sizeof(struct ipstats_mib),
- __alignof__(struct ipstats_mib)) < 0)
- goto err_ip;
- if (snmp6_mib_init((void **)idev->stats.icmpv6, sizeof(struct icmpv6_mib),
- __alignof__(struct icmpv6_mib)) < 0)
- goto err_icmp;
-
- return 0;
-
-err_icmp:
- snmp6_mib_free((void **)idev->stats.ipv6);
-err_ip:
- return err;
-}
-
-int snmp6_free_dev(struct inet6_dev *idev)
-{
- snmp6_mib_free((void **)idev->stats.icmpv6);
- snmp6_mib_free((void **)idev->stats.ipv6);
- return 0;
-}
-
-
return ret;
}
+EXPORT_SYMBOL(inet6_add_protocol);
+
/*
* Remove a protocol from the hash tables.
*/
return ret;
}
+
+EXPORT_SYMBOL(inet6_del_protocol);
int delivered = 0;
__u8 hash;
- saddr = &skb->nh.ipv6h->saddr;
+ saddr = &ipv6_hdr(skb)->saddr;
daddr = saddr + 1;
hash = nexthdr & (MAX_INET_PROTOS - 1);
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (skb->ip_summed == CHECKSUM_COMPLETE) {
- skb_postpull_rcsum(skb, skb->nh.raw,
- skb->h.raw - skb->nh.raw);
- if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
+ skb_postpull_rcsum(skb, skb_network_header(skb),
+ skb_network_header_len(skb));
+ if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
skb->len, inet->num, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
- if (skb->ip_summed != CHECKSUM_UNNECESSARY)
- skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- skb->len, inet->num, 0));
+ if (!skb_csum_unnecessary(skb))
+ skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ skb->len,
+ inet->num, 0));
if (inet->hdrincl) {
if (skb_checksum_complete(skb)) {
msg->msg_flags |= MSG_TRUNC;
}
- if (skb->ip_summed==CHECKSUM_UNNECESSARY) {
+ if (skb_csum_unnecessary(skb)) {
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
} else if (msg->msg_flags&MSG_TRUNC) {
if (__skb_checksum_complete(skb))
if (sin6) {
sin6->sin6_family = AF_INET6;
sin6->sin6_port = 0;
- ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr);
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
goto out;
offset = rp->offset;
- total_len = inet_sk(sk)->cork.length - (skb->nh.raw - skb->data);
+ total_len = inet_sk(sk)->cork.length - (skb_network_header(skb) -
+ skb->data);
if (offset >= total_len - 1) {
err = -EINVAL;
ip6_flush_pending_frames(sk);
if (csum_skb)
continue;
- len = skb->len - (skb->h.raw - skb->data);
+ len = skb->len - skb_transport_offset(skb);
if (offset >= len) {
offset -= len;
continue;
skb = csum_skb;
}
- offset += skb->h.raw - skb->data;
+ offset += skb_transport_offset(skb);
if (skb_copy_bits(skb, offset, &csum, 2))
BUG();
skb->priority = sk->sk_priority;
skb->dst = dst_clone(&rt->u.dst);
- skb->nh.ipv6h = iph = (struct ipv6hdr *)skb_put(skb, length);
+ skb_put(skb, length);
+ skb_reset_network_header(skb);
+ iph = ipv6_hdr(skb);
skb->ip_summed = CHECKSUM_NONE;
- skb->h.raw = skb->nh.raw;
+ skb->transport_header = skb->network_header;
err = memcpy_fromiovecend((void *)iph, from, 0, length);
if (err)
goto error_fault;
return 0;
default:
return -ENOPROTOOPT;
- };
+ }
return 0;
}
return 0;
default:
return -ENOPROTOOPT;
- };
+ }
return 0;
}
default:
return ipv6_setsockopt(sk, level, optname, optval,
optlen);
- };
+ }
+
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
default:
return compat_ipv6_setsockopt(sk, level, optname,
optval, optlen);
- };
+ }
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#endif
default:
return ipv6_getsockopt(sk, level, optname, optval,
optlen);
- };
+ }
+
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
default:
return compat_ipv6_getsockopt(sk, level, optname,
optval, optlen);
- };
+ }
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#endif
spin_lock_bh(&sk->sk_receive_queue.lock);
skb = skb_peek(&sk->sk_receive_queue);
if (skb != NULL)
- amount = skb->tail - skb->h.raw;
+ amount = skb->tail - skb->transport_header;
spin_unlock_bh(&sk->sk_receive_queue.lock);
return put_user(amount, (int __user *)arg);
}
int len;
int meat;
int iif;
- struct timeval stamp;
+ ktime_t stamp;
unsigned int csum;
__u8 last_in; /* has first/last segment arrived? */
#define COMPLETE 4
goto err;
offset = ntohs(fhdr->frag_off) & ~0x7;
- end = offset + (ntohs(skb->nh.ipv6h->payload_len) -
- ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1)));
+ end = offset + (ntohs(ipv6_hdr(skb)->payload_len) -
+ ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
if ((unsigned int)end > IPV6_MAXPLEN) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
- icmpv6_param_prob(skb,ICMPV6_HDR_FIELD, (u8*)&fhdr->frag_off - skb->nh.raw);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+ ((u8 *)&fhdr->frag_off -
+ skb_network_header(skb)));
return;
}
- if (skb->ip_summed == CHECKSUM_COMPLETE)
+ if (skb->ip_summed == CHECKSUM_COMPLETE) {
+ const unsigned char *nh = skb_network_header(skb);
skb->csum = csum_sub(skb->csum,
- csum_partial(skb->nh.raw, (u8*)(fhdr+1)-skb->nh.raw, 0));
+ csum_partial(nh, (u8 *)(fhdr + 1) - nh,
+ 0));
+ }
/* Is this the final fragment? */
if (!(fhdr->frag_off & htons(IP6_MF))) {
if (skb->dev)
fq->iif = skb->dev->ifindex;
skb->dev = NULL;
- skb_get_timestamp(skb, &fq->stamp);
+ fq->stamp = skb->tstamp;
fq->meat += skb->len;
atomic_add(skb->truesize, &ip6_frag_mem);
BUG_TRAP(FRAG6_CB(head)->offset == 0);
/* Unfragmented part is taken from the first segment. */
- payload_len = (head->data - head->nh.raw) - sizeof(struct ipv6hdr) + fq->len - sizeof(struct frag_hdr);
+ payload_len = ((head->data - skb_network_header(head)) -
+ sizeof(struct ipv6hdr) + fq->len -
+ sizeof(struct frag_hdr));
if (payload_len > IPV6_MAXPLEN)
goto out_oversize;
/* We have to remove fragment header from datagram and to relocate
* header in order to calculate ICV correctly. */
nhoff = fq->nhoffset;
- head->nh.raw[nhoff] = head->h.raw[0];
+ skb_network_header(head)[nhoff] = skb_transport_header(head)[0];
memmove(head->head + sizeof(struct frag_hdr), head->head,
(head->data - head->head) - sizeof(struct frag_hdr));
- head->mac.raw += sizeof(struct frag_hdr);
- head->nh.raw += sizeof(struct frag_hdr);
+ head->mac_header += sizeof(struct frag_hdr);
+ head->network_header += sizeof(struct frag_hdr);
skb_shinfo(head)->frag_list = head->next;
- head->h.raw = head->data;
- skb_push(head, head->data - head->nh.raw);
+ skb_reset_transport_header(head);
+ skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &ip6_frag_mem);
for (fp=head->next; fp; fp = fp->next) {
head->next = NULL;
head->dev = dev;
- skb_set_timestamp(head, &fq->stamp);
- head->nh.ipv6h->payload_len = htons(payload_len);
+ head->tstamp = fq->stamp;
+ ipv6_hdr(head)->payload_len = htons(payload_len);
IP6CB(head)->nhoff = nhoff;
*skb_in = head;
/* Yes, and fold redundant checksum back. 8) */
if (head->ip_summed == CHECKSUM_COMPLETE)
- head->csum = csum_partial(head->nh.raw, head->h.raw-head->nh.raw, head->csum);
+ head->csum = csum_partial(skb_network_header(head),
+ skb_network_header_len(head),
+ head->csum);
rcu_read_lock();
IP6_INC_STATS_BH(__in6_dev_get(dev), IPSTATS_MIB_REASMOKS);
struct net_device *dev = skb->dev;
struct frag_hdr *fhdr;
struct frag_queue *fq;
- struct ipv6hdr *hdr;
-
- hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
/* Jumbo payload inhibits frag. header */
if (hdr->payload_len==0) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
- icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb->h.raw-skb->nh.raw);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+ skb_network_header_len(skb));
return -1;
}
- if (!pskb_may_pull(skb, (skb->h.raw-skb->data)+sizeof(struct frag_hdr))) {
+ if (!pskb_may_pull(skb, (skb_transport_offset(skb) +
+ sizeof(struct frag_hdr)))) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
- icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb->h.raw-skb->nh.raw);
+ icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
+ skb_network_header_len(skb));
return -1;
}
- hdr = skb->nh.ipv6h;
- fhdr = (struct frag_hdr *)skb->h.raw;
+ hdr = ipv6_hdr(skb);
+ fhdr = (struct frag_hdr *)skb_transport_header(skb);
if (!(fhdr->frag_off & htons(0xFFF9))) {
/* It is not a fragmented frame */
- skb->h.raw += sizeof(struct frag_hdr);
+ skb->transport_header += sizeof(struct frag_hdr);
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMOKS);
- IP6CB(skb)->nhoff = (u8*)fhdr - skb->nh.raw;
+ IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb);
return 1;
}
return NULL;
}
+EXPORT_SYMBOL(rt6_lookup);
+
/* ip6_ins_rt is called with FREE table->tb6_lock.
It takes new route entry, the addition fails by any reason the
route is freed. In any case, if caller does not hold it, it may
void ip6_route_input(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
int flags = RT6_LOOKUP_F_HAS_SADDR;
struct flowi fl = {
.iif = skb->dev->ifindex,
return fib6_rule_lookup(fl, flags, ip6_pol_route_output);
}
+EXPORT_SYMBOL(ip6_route_output);
/*
* Destination cache support functions
rtnl_unlock();
return err;
- };
+ }
return -EINVAL;
}
int type;
switch (ipstats_mib_noroutes) {
case IPSTATS_MIB_INNOROUTES:
- type = ipv6_addr_type(&skb->nh.ipv6h->daddr);
+ type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);
if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS);
break;
return err;
}
-int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
{
struct fib6_config cfg;
int err;
return ip6_route_del(&cfg);
}
-int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
+static int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
{
struct fib6_config cfg;
int err;
prefix, NLM_F_MULTI);
}
-int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
+static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
{
struct nlattr *tb[RTA_MAX+1];
struct rt6_info *rt;
/* Reserve room for dummy headers, this skb can pass
through good chunk of routing engine.
*/
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
rt = (struct rt6_info*) ip6_route_output(NULL, &fl);
void __init ip6_route_init(void)
{
+#ifdef CONFIG_PROC_FS
struct proc_dir_entry *p;
-
+#endif
ip6_dst_ops.kmem_cachep =
kmem_cache_create("ip6_dst_cache", sizeof(struct rt6_info), 0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
fib6_rules_init();
#endif
+
+ __rtnl_register(PF_INET6, RTM_NEWROUTE, inet6_rtm_newroute, NULL);
+ __rtnl_register(PF_INET6, RTM_DELROUTE, inet6_rtm_delroute, NULL);
+ __rtnl_register(PF_INET6, RTM_GETROUTE, inet6_rtm_getroute, NULL);
}
void ip6_route_cleanup(void)
return NULL;
}
-static struct ip_tunnel ** ipip6_bucket(struct ip_tunnel *t)
+static struct ip_tunnel **__ipip6_bucket(struct ip_tunnel_parm *parms)
{
- __be32 remote = t->parms.iph.daddr;
- __be32 local = t->parms.iph.saddr;
+ __be32 remote = parms->iph.daddr;
+ __be32 local = parms->iph.saddr;
unsigned h = 0;
int prio = 0;
return &tunnels[prio][h];
}
+static inline struct ip_tunnel **ipip6_bucket(struct ip_tunnel *t)
+{
+ return __ipip6_bucket(&t->parms);
+}
+
static void ipip6_tunnel_unlink(struct ip_tunnel *t)
{
struct ip_tunnel **tp;
__be32 local = parms->iph.saddr;
struct ip_tunnel *t, **tp, *nt;
struct net_device *dev;
- unsigned h = 0;
- int prio = 0;
char name[IFNAMSIZ];
- if (remote) {
- prio |= 2;
- h ^= HASH(remote);
- }
- if (local) {
- prio |= 1;
- h ^= HASH(local);
- }
- for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
+ for (tp = __ipip6_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
return t;
}
ICMP in the real Internet is absolutely infeasible.
*/
struct iphdr *iph = (struct iphdr*)skb->data;
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
int err;
struct iphdr *iph = (struct iphdr*)dp;
int hlen = iph->ihl<<2;
struct ipv6hdr *iph6;
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
int rel_type = 0;
int rel_code = 0;
int rel_info = 0;
default:
return;
case ICMP_PARAMETERPROB:
- if (skb->h.icmph->un.gateway < hlen)
+ if (icmp_hdr(skb)->un.gateway < hlen)
return;
/* So... This guy found something strange INSIDE encapsulated
packet. Well, he is fool, but what can we do ?
*/
rel_type = ICMPV6_PARAMPROB;
- rel_info = skb->h.icmph->un.gateway - hlen;
+ rel_info = icmp_hdr(skb)->un.gateway - hlen;
break;
case ICMP_DEST_UNREACH:
dst_release(skb2->dst);
skb2->dst = NULL;
skb_pull(skb2, skb->data - (u8*)iph6);
- skb2->nh.raw = skb2->data;
+ skb_reset_network_header(skb2);
/* Try to guess incoming interface */
rt6i = rt6_lookup(&iph6->saddr, NULL, NULL, 0);
static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
{
if (INET_ECN_is_ce(iph->tos))
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
static int ipip6_rcv(struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto out;
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
read_lock(&ipip6_lock);
if ((tunnel = ipip6_tunnel_lookup(iph->saddr, iph->daddr)) != NULL) {
secpath_reset(skb);
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = skb->data;
+ skb->mac_header = skb->network_header;
+ skb_reset_network_header(skb);
IPCB(skb)->flags = 0;
skb->protocol = htons(ETH_P_IPV6);
skb->pkt_type = PACKET_HOST;
struct ip_tunnel *tunnel = netdev_priv(dev);
struct net_device_stats *stats = &tunnel->stat;
struct iphdr *tiph = &tunnel->parms.iph;
- struct ipv6hdr *iph6 = skb->nh.ipv6h;
+ struct ipv6hdr *iph6 = ipv6_hdr(skb);
u8 tos = tunnel->parms.iph.tos;
struct rtable *rt; /* Route to the other host */
struct net_device *tdev; /* Device to other host */
addr_type = ipv6_addr_type(addr6);
if (addr_type == IPV6_ADDR_ANY) {
- addr6 = &skb->nh.ipv6h->daddr;
+ addr6 = &ipv6_hdr(skb)->daddr;
addr_type = ipv6_addr_type(addr6);
}
skb_set_owner_w(new_skb, skb->sk);
dev_kfree_skb(skb);
skb = new_skb;
- iph6 = skb->nh.ipv6h;
+ iph6 = ipv6_hdr(skb);
}
- skb->h.raw = skb->nh.raw;
- skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
+ skb->transport_header = skb->network_header;
+ skb_push(skb, sizeof(struct iphdr));
+ skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
IPCB(skb)->flags = 0;
dst_release(skb->dst);
* Push down and install the IPIP header.
*/
- iph = skb->nh.iph;
+ iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = sizeof(struct iphdr)>>2;
if (mtu > IPV6_MIN_MTU)
static __u32 tcp_v6_init_sequence(struct sk_buff *skb)
{
- return secure_tcpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32,
- skb->nh.ipv6h->saddr.s6_addr32,
- skb->h.th->dest,
- skb->h.th->source);
+ return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
+ ipv6_hdr(skb)->saddr.s6_addr32,
+ tcp_hdr(skb)->dest,
+ tcp_hdr(skb)->source);
}
static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
struct sk_buff *pktopts = treq->pktopts;
struct inet6_skb_parm *rxopt = IP6CB(pktopts);
if (rxopt->srcrt)
- opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr*)(pktopts->nh.raw + rxopt->srcrt));
+ opt = ipv6_invert_rthdr(sk,
+ (struct ipv6_rt_hdr *)(skb_network_header(pktopts) +
+ rxopt->srcrt));
}
if (opt && opt->srcrt) {
skb = tcp_make_synack(sk, dst, req);
if (skb) {
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
th->check = tcp_v6_check(th, skb->len,
&treq->loc_addr, &treq->rmt_addr,
{
__u8 *hash_location = NULL;
struct tcp_md5sig_key *hash_expected;
- struct ipv6hdr *ip6h = skb->nh.ipv6h;
- struct tcphdr *th = skb->h.th;
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ struct tcphdr *th = tcp_hdr(skb);
int length = (th->doff << 2) - sizeof (*th);
int genhash;
u8 *ptr;
static void tcp_v6_send_check(struct sock *sk, int len, struct sk_buff *skb)
{
struct ipv6_pinfo *np = inet6_sk(sk);
- struct tcphdr *th = skb->h.th;
+ struct tcphdr *th = tcp_hdr(skb);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
th->check = ~csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP, 0);
+ skb->csum_start = skb_transport_header(skb) - skb->head;
skb->csum_offset = offsetof(struct tcphdr, check);
} else {
th->check = csum_ipv6_magic(&np->saddr, &np->daddr, len, IPPROTO_TCP,
if (!pskb_may_pull(skb, sizeof(*th)))
return -EINVAL;
- ipv6h = skb->nh.ipv6h;
- th = skb->h.th;
+ ipv6h = ipv6_hdr(skb);
+ th = tcp_hdr(skb);
th->check = 0;
th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
IPPROTO_TCP, 0);
+ skb->csum_start = skb_transport_header(skb) - skb->head;
skb->csum_offset = offsetof(struct tcphdr, check);
skb->ip_summed = CHECKSUM_PARTIAL;
return 0;
static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb)
{
- struct tcphdr *th = skb->h.th, *t1;
+ struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
int tot_len = sizeof(*th);
#ifdef CONFIG_TCP_MD5SIG
if (sk)
- key = tcp_v6_md5_do_lookup(sk, &skb->nh.ipv6h->daddr);
+ key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr);
else
key = NULL;
(TCPOPT_NOP << 16) |
(TCPOPT_MD5SIG << 8) |
TCPOLEN_MD5SIG);
- tcp_v6_do_calc_md5_hash((__u8*)&opt[1],
- key,
- &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr,
- t1, IPPROTO_TCP,
- tot_len);
+ tcp_v6_do_calc_md5_hash((__u8 *)&opt[1], key,
+ &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr,
+ t1, IPPROTO_TCP, tot_len);
}
#endif
buff->csum = csum_partial((char *)t1, sizeof(*t1), 0);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr);
t1->check = csum_ipv6_magic(&fl.fl6_src, &fl.fl6_dst,
sizeof(*t1), IPPROTO_TCP,
static void tcp_v6_send_ack(struct tcp_timewait_sock *tw,
struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 ts)
{
- struct tcphdr *th = skb->h.th, *t1;
+ struct tcphdr *th = tcp_hdr(skb), *t1;
struct sk_buff *buff;
struct flowi fl;
int tot_len = sizeof(struct tcphdr);
#ifdef CONFIG_TCP_MD5SIG
if (!tw && skb->sk) {
- key = tcp_v6_md5_do_lookup(skb->sk, &skb->nh.ipv6h->daddr);
+ key = tcp_v6_md5_do_lookup(skb->sk, &ipv6_hdr(skb)->daddr);
} else if (tw && tw->tw_md5_keylen) {
tw_key.key = tw->tw_md5_key;
tw_key.keylen = tw->tw_md5_keylen;
if (key) {
*topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
(TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG);
- tcp_v6_do_calc_md5_hash((__u8 *)topt,
- key,
- &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr,
- t1, IPPROTO_TCP,
- tot_len);
+ tcp_v6_do_calc_md5_hash((__u8 *)topt, key,
+ &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr,
+ t1, IPPROTO_TCP, tot_len);
}
#endif
buff->csum = csum_partial((char *)t1, tot_len, 0);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr);
t1->check = csum_ipv6_magic(&fl.fl6_src, &fl.fl6_dst,
tot_len, IPPROTO_TCP,
static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
{
struct request_sock *req, **prev;
- const struct tcphdr *th = skb->h.th;
+ const struct tcphdr *th = tcp_hdr(skb);
struct sock *nsk;
/* Find possible connection requests. */
req = inet6_csk_search_req(sk, &prev, th->source,
- &skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr, inet6_iif(skb));
+ &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, inet6_iif(skb));
if (req)
return tcp_check_req(sk, skb, req, prev);
- nsk = __inet6_lookup_established(&tcp_hashinfo, &skb->nh.ipv6h->saddr,
- th->source, &skb->nh.ipv6h->daddr,
+ nsk = __inet6_lookup_established(&tcp_hashinfo, &ipv6_hdr(skb)->saddr,
+ th->source, &ipv6_hdr(skb)->daddr,
ntohs(th->dest), inet6_iif(skb));
if (nsk) {
tcp_openreq_init(req, &tmp_opt, skb);
treq = inet6_rsk(req);
- ipv6_addr_copy(&treq->rmt_addr, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&treq->loc_addr, &skb->nh.ipv6h->daddr);
- TCP_ECN_create_request(req, skb->h.th);
+ ipv6_addr_copy(&treq->rmt_addr, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&treq->loc_addr, &ipv6_hdr(skb)->daddr);
+ TCP_ECN_create_request(req, tcp_hdr(skb));
treq->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) ||
np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
newnp->pktoptions = NULL;
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count
opt == NULL && treq->pktopts) {
struct inet6_skb_parm *rxopt = IP6CB(treq->pktopts);
if (rxopt->srcrt)
- opt = ipv6_invert_rthdr(sk, (struct ipv6_rt_hdr *)(treq->pktopts->nh.raw + rxopt->srcrt));
+ opt = ipv6_invert_rthdr(sk,
+ (struct ipv6_rt_hdr *)(skb_network_header(treq->pktopts) +
+ rxopt->srcrt));
}
if (dst == NULL) {
}
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/* Clone native IPv6 options from listening socket (if any)
static __sum16 tcp_v6_checksum_init(struct sk_buff *skb)
{
if (skb->ip_summed == CHECKSUM_COMPLETE) {
- if (!tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,skb->csum)) {
+ if (!tcp_v6_check(tcp_hdr(skb), skb->len, &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, skb->csum)) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
return 0;
}
}
- skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr, 0));
+ skb->csum = ~csum_unfold(tcp_v6_check(tcp_hdr(skb), skb->len,
+ &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, 0));
if (skb->len <= 76) {
return __skb_checksum_complete(skb);
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
TCP_CHECK_TIMER(sk);
- if (tcp_rcv_established(sk, skb, skb->h.th, skb->len))
+ if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
TCP_CHECK_TIMER(sk);
if (opt_skb)
return 0;
}
- if (skb->len < (skb->h.th->doff<<2) || tcp_checksum_complete(skb))
+ if (skb->len < tcp_hdrlen(skb) || tcp_checksum_complete(skb))
goto csum_err;
if (sk->sk_state == TCP_LISTEN) {
}
TCP_CHECK_TIMER(sk);
- if (tcp_rcv_state_process(sk, skb, skb->h.th, skb->len))
+ if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len))
goto reset;
TCP_CHECK_TIMER(sk);
if (opt_skb)
if (np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo)
np->mcast_oif = inet6_iif(opt_skb);
if (np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim)
- np->mcast_hops = opt_skb->nh.ipv6h->hop_limit;
+ np->mcast_hops = ipv6_hdr(opt_skb)->hop_limit;
if (ipv6_opt_accepted(sk, opt_skb)) {
skb_set_owner_r(opt_skb, sk);
opt_skb = xchg(&np->pktoptions, opt_skb);
if (!pskb_may_pull(skb, sizeof(struct tcphdr)))
goto discard_it;
- th = skb->h.th;
+ th = tcp_hdr(skb);
if (th->doff < sizeof(struct tcphdr)/4)
goto bad_packet;
if (!pskb_may_pull(skb, th->doff*4))
goto discard_it;
- if ((skb->ip_summed != CHECKSUM_UNNECESSARY &&
- tcp_v6_checksum_init(skb)))
+ if (!skb_csum_unnecessary(skb) && tcp_v6_checksum_init(skb))
goto bad_packet;
- th = skb->h.th;
+ th = tcp_hdr(skb);
TCP_SKB_CB(skb)->seq = ntohl(th->seq);
TCP_SKB_CB(skb)->end_seq = (TCP_SKB_CB(skb)->seq + th->syn + th->fin +
skb->len - th->doff*4);
TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);
TCP_SKB_CB(skb)->when = 0;
- TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(skb->nh.ipv6h);
+ TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(ipv6_hdr(skb));
TCP_SKB_CB(skb)->sacked = 0;
- sk = __inet6_lookup(&tcp_hashinfo, &skb->nh.ipv6h->saddr, th->source,
- &skb->nh.ipv6h->daddr, ntohs(th->dest),
+ sk = __inet6_lookup(&tcp_hashinfo, &ipv6_hdr(skb)->saddr, th->source,
+ &ipv6_hdr(skb)->daddr, ntohs(th->dest),
inet6_iif(skb));
if (!sk)
struct sock *sk2;
sk2 = inet6_lookup_listener(&tcp_hashinfo,
- &skb->nh.ipv6h->daddr,
+ &ipv6_hdr(skb)->daddr,
ntohs(th->dest), inet6_iif(skb));
if (sk2 != NULL) {
struct inet_timewait_sock *tw = inet_twsk(sk);
return inet6_destroy_sock(sk);
}
+#ifdef CONFIG_PROC_FS
/* Proc filesystem TCPv6 sock list dumping. */
static void get_openreq6(struct seq_file *seq,
struct sock *sk, struct request_sock *req, int i, int uid)
atomic_read(&tw->tw_refcnt), tw);
}
-#ifdef CONFIG_PROC_FS
static int tcp6_seq_show(struct seq_file *seq, void *v)
{
struct tcp_iter_state *st;
continue;
score++;
}
- if(score == 4) {
+ if (score == 4) {
result = sk;
break;
- } else if(score > badness) {
+ } else if (score > badness) {
result = sk;
badness = score;
}
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet_sock *inet = inet_sk(sk);
struct sk_buff *skb;
- size_t copied;
- int err, copy_only, is_udplite = IS_UDPLITE(sk);
+ unsigned int ulen, copied;
+ int err;
+ int is_udplite = IS_UDPLITE(sk);
if (addr_len)
*addr_len=sizeof(struct sockaddr_in6);
if (!skb)
goto out;
- copied = skb->len - sizeof(struct udphdr);
- if (copied > len) {
- copied = len;
+ ulen = skb->len - sizeof(struct udphdr);
+ copied = len;
+ if (copied > ulen)
+ copied = ulen;
+ else if (copied < ulen)
msg->msg_flags |= MSG_TRUNC;
- }
/*
- * Decide whether to checksum and/or copy data.
+ * If checksum is needed at all, try to do it while copying the
+ * data. If the data is truncated, or if we only want a partial
+ * coverage checksum (UDP-Lite), do it before the copy.
*/
- copy_only = (skb->ip_summed==CHECKSUM_UNNECESSARY);
- if (is_udplite || (!copy_only && msg->msg_flags&MSG_TRUNC)) {
- if (__udp_lib_checksum_complete(skb))
+ if (copied < ulen || UDP_SKB_CB(skb)->partial_cov) {
+ if (udp_lib_checksum_complete(skb))
goto csum_copy_err;
- copy_only = 1;
}
- if (copy_only)
+ if (skb_csum_unnecessary(skb))
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr),
msg->msg_iov, copied );
else {
sin6 = (struct sockaddr_in6 *) msg->msg_name;
sin6->sin6_family = AF_INET6;
- sin6->sin6_port = skb->h.uh->source;
+ sin6->sin6_port = udp_hdr(skb)->source;
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
if (skb->protocol == htons(ETH_P_IP))
ipv6_addr_set(&sin6->sin6_addr, 0, 0,
- htonl(0xffff), skb->nh.iph->saddr);
+ htonl(0xffff), ip_hdr(skb)->saddr);
else {
- ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin6->sin6_addr,
+ &ipv6_hdr(skb)->saddr);
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
sin6->sin6_scope_id = IP6CB(skb)->iif;
}
err = copied;
if (flags & MSG_TRUNC)
- err = skb->len - sizeof(struct udphdr);
+ err = ulen;
out_free:
skb_free_datagram(sk, skb);
}
}
- if (udp_lib_checksum_complete(skb))
- goto drop;
+ if (sk->sk_filter) {
+ if (udp_lib_checksum_complete(skb))
+ goto drop;
+ }
if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
/* Note that an ENOMEM error is charged twice */
if (!ipv6_addr_equal(&np->rcv_saddr, loc_addr))
continue;
}
- if(!inet6_mc_check(s, loc_addr, rmt_addr))
+ if (!inet6_mc_check(s, loc_addr, rmt_addr))
continue;
return s;
}
struct in6_addr *daddr, struct hlist_head udptable[])
{
struct sock *sk, *sk2;
- const struct udphdr *uh = skb->h.uh;
+ const struct udphdr *uh = udp_hdr(skb);
int dif;
read_lock(&udp_hash_lock);
return 0;
}
-static inline int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh)
-
+static inline int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh,
+ int proto)
{
+ int err;
+
+ UDP_SKB_CB(skb)->partial_cov = 0;
+ UDP_SKB_CB(skb)->cscov = skb->len;
+
+ if (proto == IPPROTO_UDPLITE) {
+ err = udplite_checksum_init(skb, uh);
+ if (err)
+ return err;
+ }
+
if (uh->check == 0) {
/* RFC 2460 section 8.1 says that we SHOULD log
this error. Well, it is reasonable.
return 1;
}
if (skb->ip_summed == CHECKSUM_COMPLETE &&
- !csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr,
- skb->len, IPPROTO_UDP, skb->csum ))
+ !csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
+ skb->len, proto, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (skb->ip_summed != CHECKSUM_UNNECESSARY)
- skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- skb->len, IPPROTO_UDP,
- 0));
+ if (!skb_csum_unnecessary(skb))
+ skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ skb->len, proto, 0));
- return (UDP_SKB_CB(skb)->partial_cov = 0);
+ return 0;
}
int __udp6_lib_rcv(struct sk_buff **pskb, struct hlist_head udptable[],
- int is_udplite)
+ int proto)
{
struct sk_buff *skb = *pskb;
struct sock *sk;
if (!pskb_may_pull(skb, sizeof(struct udphdr)))
goto short_packet;
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
- uh = skb->h.uh;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
+ uh = udp_hdr(skb);
ulen = ntohs(uh->len);
if (ulen > skb->len)
goto short_packet;
- if(! is_udplite ) { /* UDP validates ulen. */
+ if (proto == IPPROTO_UDP) {
+ /* UDP validates ulen. */
/* Check for jumbo payload */
if (ulen == 0)
if (ulen < skb->len) {
if (pskb_trim_rcsum(skb, ulen))
goto short_packet;
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
- uh = skb->h.uh;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
+ uh = udp_hdr(skb);
}
-
- if (udp6_csum_init(skb, uh))
- goto discard;
-
- } else { /* UDP-Lite validates cscov. */
- if (udplite6_csum_init(skb, uh))
- goto discard;
}
+ if (udp6_csum_init(skb, uh, proto))
+ goto discard;
+
/*
* Multicast receive code
*/
if (udp_lib_checksum_complete(skb))
goto discard;
- UDP6_INC_STATS_BH(UDP_MIB_NOPORTS, is_udplite);
+ UDP6_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, dev);
kfree_skb(skb);
- return(0);
+ return 0;
}
/* deliver */
udpv6_queue_rcv_skb(sk, skb);
sock_put(sk);
- return(0);
+ return 0;
short_packet:
LIMIT_NETDEBUG(KERN_DEBUG "UDP%sv6: short packet: %d/%u\n",
- is_udplite? "-Lite" : "", ulen, skb->len);
+ proto == IPPROTO_UDPLITE ? "-Lite" : "",
+ ulen, skb->len);
discard:
- UDP6_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
+ UDP6_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
kfree_skb(skb);
- return(0);
+ return 0;
}
static __inline__ int udpv6_rcv(struct sk_buff **pskb)
{
- return __udp6_lib_rcv(pskb, udp_hash, 0);
+ return __udp6_lib_rcv(pskb, udp_hash, IPPROTO_UDP);
}
/*
/*
* Create a UDP header
*/
- uh = skb->h.uh;
+ uh = udp_hdr(skb);
uh->source = fl->fl_ip_sport;
uh->dest = fl->fl_ip_dport;
uh->len = htons(up->len);
static int udplitev6_rcv(struct sk_buff **pskb)
{
- return __udp6_lib_rcv(pskb, udplite_hash, 1);
+ return __udp6_lib_rcv(pskb, udplite_hash, IPPROTO_UDPLITE);
}
static void udplitev6_err(struct sk_buff *skb,
unsigned int nhoff;
nhoff = IP6CB(skb)->nhoff;
- nexthdr = skb->nh.raw[nhoff];
+ nexthdr = skb_network_header(skb)[nhoff];
seq = 0;
if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0)
goto drop;
do {
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
if (xfrm_nr == XFRM_MAX_DEPTH)
goto drop;
if (nexthdr <= 0)
goto drop_unlock;
- skb->nh.raw[nhoff] = nexthdr;
+ skb_network_header(skb)[nhoff] = nexthdr;
if (x->props.replay_window)
xfrm_replay_advance(x, seq);
return -1;
} else {
#ifdef CONFIG_NETFILTER
- skb->nh.ipv6h->payload_len = htons(skb->len);
- __skb_push(skb, skb->data - skb->nh.raw);
+ ipv6_hdr(skb)->payload_len = htons(skb->len);
+ __skb_push(skb, skb->data - skb_network_header(skb));
NF_HOOK(PF_INET6, NF_IP6_PRE_ROUTING, skb, skb->dev, NULL,
ip6_rcv_finish);
return xfrm6_rcv_spi(*pskb, 0);
}
+EXPORT_SYMBOL(xfrm6_rcv);
+
int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
xfrm_address_t *saddr, u8 proto)
{
struct xfrm_state *x = NULL;
int wildcard = 0;
- struct in6_addr any;
xfrm_address_t *xany;
struct xfrm_state *xfrm_vec_one = NULL;
int nh = 0;
int i = 0;
- ipv6_addr_set(&any, 0, 0, 0, 0);
- xany = (xfrm_address_t *)&any;
+ xany = (xfrm_address_t *)&in6addr_any;
for (i = 0; i < 3; i++) {
xfrm_address_t *dst, *src;
xfrm_state_put(xfrm_vec_one);
return -1;
}
+
+EXPORT_SYMBOL(xfrm6_input_addr);
int hdr_len;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
hdr_len = ip6_find_1stfragopt(skb, &prevhdr);
- skb->nh.raw = prevhdr - x->props.header_len;
- skb->h.raw = skb->data + hdr_len;
+ skb_set_network_header(skb,
+ (prevhdr - x->props.header_len) - skb->data);
+ skb_set_transport_header(skb, hdr_len);
memmove(skb->data, iph, hdr_len);
- skb->nh.raw = skb->data;
- top_iph = skb->nh.ipv6h;
- skb->nh.raw = &top_iph->nexthdr;
- skb->h.ipv6h = top_iph + 1;
+ skb_reset_network_header(skb);
+ top_iph = ipv6_hdr(skb);
+ skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
+ skb->network_header += offsetof(struct ipv6hdr, nexthdr);
ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);
static int xfrm6_beet_input(struct xfrm_state *x, struct sk_buff *skb)
{
struct ipv6hdr *ip6h;
+ const unsigned char *old_mac;
int size = sizeof(struct ipv6hdr);
int err = -EINVAL;
goto out;
skb_push(skb, size);
- memmove(skb->data, skb->nh.raw, size);
- skb->nh.raw = skb->data;
+ memmove(skb->data, skb_network_header(skb), size);
+ skb_reset_network_header(skb);
- skb->mac.raw = memmove(skb->data - skb->mac_len,
- skb->mac.raw, skb->mac_len);
+ old_mac = skb_mac_header(skb);
+ skb_set_mac_header(skb, -skb->mac_len);
+ memmove(skb_mac_header(skb), old_mac, skb->mac_len);
- ip6h = skb->nh.ipv6h;
+ ip6h = ipv6_hdr(skb);
ip6h->payload_len = htons(skb->len - size);
ipv6_addr_copy(&ip6h->daddr, (struct in6_addr *) &x->sel.daddr.a6);
ipv6_addr_copy(&ip6h->saddr, (struct in6_addr *) &x->sel.saddr.a6);
int hdr_len;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
- skb->nh.raw = prevhdr - x->props.header_len;
- skb->h.raw = skb->data + hdr_len;
+ skb_set_network_header(skb,
+ (prevhdr - x->props.header_len) - skb->data);
+ skb_set_transport_header(skb, hdr_len);
memmove(skb->data, iph, hdr_len);
return 0;
}
int hdr_len;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
- skb->nh.raw = prevhdr - x->props.header_len;
- skb->h.raw = skb->data + hdr_len;
+ skb_set_network_header(skb,
+ (prevhdr - x->props.header_len) - skb->data);
+ skb_set_transport_header(skb, hdr_len);
memmove(skb->data, iph, hdr_len);
return 0;
}
*/
static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
{
- int ihl = skb->data - skb->h.raw;
+ int ihl = skb->data - skb_transport_header(skb);
- if (skb->h.raw != skb->nh.raw)
- skb->nh.raw = memmove(skb->h.raw, skb->nh.raw, ihl);
- skb->nh.ipv6h->payload_len = htons(skb->len + ihl -
+ if (skb->transport_header != skb->network_header) {
+ memmove(skb_transport_header(skb),
+ skb_network_header(skb), ihl);
+ skb->network_header = skb->transport_header;
+ }
+ ipv6_hdr(skb)->payload_len = htons(skb->len + ihl -
sizeof(struct ipv6hdr));
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
return 0;
}
static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
{
- struct ipv6hdr *outer_iph = skb->nh.ipv6h;
- struct ipv6hdr *inner_iph = skb->h.ipv6h;
+ struct ipv6hdr *outer_iph = ipv6_hdr(skb);
+ struct ipv6hdr *inner_iph = ipipv6_hdr(skb);
if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
IP6_ECN_set_ce(inner_iph);
static inline void ip6ip_ecn_decapsulate(struct sk_buff *skb)
{
- if (INET_ECN_is_ce(ipv6_get_dsfield(skb->nh.ipv6h)))
- IP_ECN_set_ce(skb->h.ipiph);
+ if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6_hdr(skb))))
+ IP_ECN_set_ce(ipip_hdr(skb));
}
/* Add encapsulation header.
int dsfield;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
- skb->nh.raw = skb->data;
- top_iph = skb->nh.ipv6h;
- skb->nh.raw = &top_iph->nexthdr;
- skb->h.ipv6h = top_iph + 1;
+ skb_reset_network_header(skb);
+ top_iph = ipv6_hdr(skb);
+ skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
+ skb->network_header += offsetof(struct ipv6hdr, nexthdr);
top_iph->version = 6;
if (xdst->route->ops->family == AF_INET6) {
static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
{
int err = -EINVAL;
+ const unsigned char *old_mac;
+ const unsigned char *nh = skb_network_header(skb);
- if (skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPV6
- && skb->nh.raw[IP6CB(skb)->nhoff] != IPPROTO_IPIP)
+ if (nh[IP6CB(skb)->nhoff] != IPPROTO_IPV6 &&
+ nh[IP6CB(skb)->nhoff] != IPPROTO_IPIP)
goto out;
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto out;
(err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
goto out;
- if (skb->nh.raw[IP6CB(skb)->nhoff] == IPPROTO_IPV6) {
+ nh = skb_network_header(skb);
+ if (nh[IP6CB(skb)->nhoff] == IPPROTO_IPV6) {
if (x->props.flags & XFRM_STATE_DECAP_DSCP)
- ipv6_copy_dscp(skb->nh.ipv6h, skb->h.ipv6h);
+ ipv6_copy_dscp(ipv6_hdr(skb), ipipv6_hdr(skb));
if (!(x->props.flags & XFRM_STATE_NOECN))
ipip6_ecn_decapsulate(skb);
} else {
ip6ip_ecn_decapsulate(skb);
skb->protocol = htons(ETH_P_IP);
}
- skb->mac.raw = memmove(skb->data - skb->mac_len,
- skb->mac.raw, skb->mac_len);
- skb->nh.raw = skb->data;
+ old_mac = skb_mac_header(skb);
+ skb_set_mac_header(skb, -skb->mac_len);
+ memmove(skb_mac_header(skb), old_mac, skb->mac_len);
+ skb_reset_network_header(skb);
err = 0;
out:
return ip6_find_1stfragopt(skb, prevhdr);
}
+EXPORT_SYMBOL(xfrm6_find_1stfragopt);
+
static int xfrm6_tunnel_check_size(struct sk_buff *skb)
{
int mtu, ret = 0;
x->curlft.bytes += skb->len;
x->curlft.packets++;
if (x->props.mode == XFRM_MODE_ROUTEOPTIMIZATION)
- x->lastused = (u64)xtime.tv_sec;
+ x->lastused = get_seconds();
spin_unlock_bh(&x->lock);
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
if (!(skb->dst = dst_pop(dst))) {
err = -EHOSTUNREACH;
if (!afinfo) {
dst = *dst_p;
goto error;
- };
+ }
+
dst_prev->output = afinfo->output;
xfrm_state_put_afinfo(afinfo);
/* Sheit... I remember I did this right. Apparently,
static inline void
_decode_session6(struct sk_buff *skb, struct flowi *fl)
{
- u16 offset = skb->h.raw - skb->nh.raw;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ u16 offset = skb_network_header_len(skb);
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct ipv6_opt_hdr *exthdr;
- u8 nexthdr = skb->nh.raw[IP6CB(skb)->nhoff];
+ const unsigned char *nh = skb_network_header(skb);
+ u8 nexthdr = nh[IP6CB(skb)->nhoff];
memset(fl, 0, sizeof(struct flowi));
ipv6_addr_copy(&fl->fl6_dst, &hdr->daddr);
ipv6_addr_copy(&fl->fl6_src, &hdr->saddr);
- while (pskb_may_pull(skb, skb->nh.raw + offset + 1 - skb->data)) {
- exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+ while (pskb_may_pull(skb, nh + offset + 1 - skb->data)) {
+ nh = skb_network_header(skb);
+ exthdr = (struct ipv6_opt_hdr *)(nh + offset);
switch (nexthdr) {
case NEXTHDR_ROUTING:
case NEXTHDR_DEST:
offset += ipv6_optlen(exthdr);
nexthdr = exthdr->nexthdr;
- exthdr = (struct ipv6_opt_hdr*)(skb->nh.raw + offset);
+ exthdr = (struct ipv6_opt_hdr *)(nh + offset);
break;
case IPPROTO_UDP:
case IPPROTO_TCP:
case IPPROTO_SCTP:
case IPPROTO_DCCP:
- if (pskb_may_pull(skb, skb->nh.raw + offset + 4 - skb->data)) {
+ if (pskb_may_pull(skb, nh + offset + 4 - skb->data)) {
__be16 *ports = (__be16 *)exthdr;
fl->fl_ip_sport = ports[0];
return;
case IPPROTO_ICMPV6:
- if (pskb_may_pull(skb, skb->nh.raw + offset + 2 - skb->data)) {
+ if (pskb_may_pull(skb, nh + offset + 2 - skb->data)) {
u8 *icmp = (u8 *)exthdr;
fl->fl_icmp_type = icmp[0];
#ifdef CONFIG_IPV6_MIP6
case IPPROTO_MH:
- if (pskb_may_pull(skb, skb->nh.raw + offset + 3 - skb->data)) {
+ if (pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
struct ip6_mh *mh;
mh = (struct ip6_mh *)exthdr;
fl->fl_ipsec_spi = 0;
fl->proto = nexthdr;
return;
- };
+ }
}
}
static int xfrm6_tunnel_rcv(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
__be32 spi;
spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
skb2 = alloc_skb(len, GFP_ATOMIC);
if (skb2) {
skb_reserve(skb2, out_offset);
- skb2->nh.raw = skb2->h.raw = skb_put(skb2, skb->len);
+ skb_reset_network_header(skb2);
+ skb_reset_transport_header(skb2);
+ skb_put(skb2, skb->len);
memcpy(ipx_hdr(skb2), ipx_hdr(skb), skb->len);
memcpy(skb2->cb, skb->cb, sizeof(skb->cb));
}
copied);
if (rc)
goto out_free;
- if (skb->tstamp.off_sec)
- skb_get_timestamp(skb, &sk->sk_stamp);
+ if (skb->tstamp.tv64)
+ sk->sk_stamp = skb->tstamp;
msg->msg_namelen = sizeof(*sipx);
skb->sk = sk;
/* Fill in IPX header */
- skb->h.raw = skb->nh.raw = skb_put(skb, sizeof(struct ipxhdr));
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
+ skb_put(skb, sizeof(struct ipxhdr));
ipx = ipx_hdr(skb);
ipx->ipx_pktsize = htons(len + sizeof(struct ipxhdr));
IPX_SKB_CB(skb)->ipx_tctrl = 0;
self = instance;
sk = instance;
- IRDA_ASSERT(sk != NULL, return -1;);
err = sock_queue_rcv_skb(sk, skb);
if (err) {
}
/* Prevent race conditions with irda_release() and irda_shutdown() */
+ bh_lock_sock(sk);
if (!sock_flag(sk, SOCK_DEAD) && sk->sk_state != TCP_CLOSE) {
- lock_sock(sk);
sk->sk_state = TCP_CLOSE;
- sk->sk_err = ECONNRESET;
sk->sk_shutdown |= SEND_SHUTDOWN;
sk->sk_state_change(sk);
- sock_orphan(sk);
- release_sock(sk);
/* Close our TSAP.
* If we leave it open, IrLMP put it back into the list of
self->tsap = NULL;
}
}
+ bh_unlock_sock(sk);
/* Note : once we are there, there is not much you want to do
* with the socket anymore, apart from closing it.
break;
default:
self->max_data_size = irttp_get_max_seg_size(self->tsap);
- };
+ }
IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __FUNCTION__,
self->max_data_size);
break;
default:
self->max_data_size = irttp_get_max_seg_size(self->tsap);
- };
+ }
IRDA_DEBUG(2, "%s(), max_data_size=%d\n", __FUNCTION__,
self->max_data_size);
IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
- IRDA_ASSERT(self != NULL, return;);
-
skb = alloc_skb(TTP_MAX_HEADER + TTP_SAR_HEADER,
GFP_ATOMIC);
if (skb == NULL) {
self = instance;
sk = instance;
- IRDA_ASSERT(sk != NULL, return;);
+ BUG_ON(sk == NULL);
switch (flow) {
case FLOW_STOP:
IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
self = (struct irda_sock *) priv;
- IRDA_ASSERT(self != NULL, return;);
+ BUG_ON(self == NULL);
/* Nothing for the caller */
self->cachelog = NULL;
{
IRDA_DEBUG(2, "%s(%p, %s)\n", __FUNCTION__, self, name);
- IRDA_ASSERT(self != NULL, return -1;);
-
if (self->iriap) {
IRDA_WARNING("%s(): busy with a previous query\n",
__FUNCTION__);
IRDA_DEBUG(2, "%s(), name=%s\n", __FUNCTION__, name);
- IRDA_ASSERT(self != NULL, return -1;);
-
/* Ask lmp for the current discovery log
* Note : we have to use irlmp_get_discoveries(), as opposed
* to play with the cachelog directly, because while we are
struct irda_sock *self = irda_sk(sk);
int err;
- IRDA_ASSERT(self != NULL, return -1;);
-
IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__, self);
if (addr_len != sizeof(struct sockaddr_irda))
IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
- IRDA_ASSERT(self != NULL, return -1;);
-
err = irda_create(newsock, sk->sk_protocol);
if (err)
return err;
* calling us, the data is waiting for us ;-)
* Jean II
*/
- skb = skb_dequeue(&sk->sk_receive_queue);
- if (skb == NULL) {
- int ret = 0;
- DECLARE_WAITQUEUE(waitq, current);
+ while (1) {
+ skb = skb_dequeue(&sk->sk_receive_queue);
+ if (skb)
+ break;
/* Non blocking operation */
if (flags & O_NONBLOCK)
return -EWOULDBLOCK;
- /* The following code is a cut'n'paste of the
- * wait_event_interruptible() macro.
- * We don't us the macro because the condition has
- * side effects : we want to make sure that only one
- * skb get dequeued - Jean II */
- add_wait_queue(sk->sk_sleep, &waitq);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- skb = skb_dequeue(&sk->sk_receive_queue);
- if (skb != NULL)
- break;
- if (!signal_pending(current)) {
- schedule();
- continue;
- }
- ret = -ERESTARTSYS;
- break;
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &waitq);
- if(ret)
- return -ERESTARTSYS;
+ err = wait_event_interruptible(*(sk->sk_sleep),
+ skb_peek(&sk->sk_receive_queue));
+ if (err)
+ return err;
}
newsk = newsock->sk;
+ if (newsk == NULL)
+ return -EIO;
+
newsk->sk_state = TCP_ESTABLISHED;
new = irda_sk(newsk);
- IRDA_ASSERT(new != NULL, return -1;);
/* Now attach up the new socket */
new->tsap = irttp_dup(self->tsap, new);
if (sk->sk_state != TCP_ESTABLISHED) {
sock->state = SS_UNCONNECTED;
- return sock_error(sk); /* Always set at this point */
+ err = sock_error(sk);
+ return err? err : -ECONNRESET;
}
sock->state = SS_CONNECTED;
{
IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__, self);
- IRDA_ASSERT(self != NULL, return;);
-
/* Unregister with IrLMP */
irlmp_unregister_client(self->ckey);
irlmp_unregister_service(self->skey);
struct sock *sk = sock->sk;
struct irda_sock *self;
struct sk_buff *skb;
- unsigned char *asmptr;
int err;
IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
return -ENOTCONN;
self = irda_sk(sk);
- IRDA_ASSERT(self != NULL, return -1;);
/* Check if IrTTP is wants us to slow down */
return -ENOBUFS;
skb_reserve(skb, self->max_header_size + 16);
-
- asmptr = skb->h.raw = skb_put(skb, len);
- err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+ skb_reset_transport_header(skb);
+ skb_put(skb, len);
+ err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
if (err) {
kfree_skb(skb);
return err;
IRDA_DEBUG(4, "%s()\n", __FUNCTION__);
- IRDA_ASSERT(self != NULL, return -1;);
- IRDA_ASSERT(!sock_error(sk), return -1;);
+ if ((err = sock_error(sk)) < 0)
+ return err;
skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
flags & MSG_DONTWAIT, &err);
if (!skb)
return err;
- skb->h.raw = skb->data;
- copied = skb->len;
+ skb_reset_transport_header(skb);
+ copied = skb->len;
if (copied > size) {
IRDA_DEBUG(2, "%s(), Received truncated frame (%zd < %zd)!\n",
struct irda_sock *self = irda_sk(sk);
int noblock = flags & MSG_DONTWAIT;
size_t copied = 0;
- int target = 1;
- DECLARE_WAITQUEUE(waitq, current);
+ int target, err;
+ long timeo;
IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
- IRDA_ASSERT(self != NULL, return -1;);
- IRDA_ASSERT(!sock_error(sk), return -1;);
+ if ((err = sock_error(sk)) < 0)
+ return err;
if (sock->flags & __SO_ACCEPTCON)
return(-EINVAL);
if (flags & MSG_OOB)
return -EOPNOTSUPP;
- if (flags & MSG_WAITALL)
- target = size;
+ target = sock_rcvlowat(sk, flags & MSG_WAITALL, size);
+ timeo = sock_rcvtimeo(sk, noblock);
msg->msg_namelen = 0;
int chunk;
struct sk_buff *skb = skb_dequeue(&sk->sk_receive_queue);
- if (skb==NULL) {
+ if (skb == NULL) {
+ DEFINE_WAIT(wait);
int ret = 0;
if (copied >= target)
break;
- /* The following code is a cut'n'paste of the
- * wait_event_interruptible() macro.
- * We don't us the macro because the test condition
- * is messy. - Jean II */
- set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
- add_wait_queue(sk->sk_sleep, &waitq);
- set_current_state(TASK_INTERRUPTIBLE);
+ prepare_to_wait_exclusive(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
/*
* POSIX 1003.1g mandates this order.
*/
ret = sock_error(sk);
if (ret)
- break;
+ ;
else if (sk->sk_shutdown & RCV_SHUTDOWN)
;
else if (noblock)
ret = -EAGAIN;
else if (signal_pending(current))
- ret = -ERESTARTSYS;
+ ret = sock_intr_errno(timeo);
+ else if (sk->sk_state != TCP_ESTABLISHED)
+ ret = -ENOTCONN;
else if (skb_peek(&sk->sk_receive_queue) == NULL)
/* Wait process until data arrives */
schedule();
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &waitq);
- clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
+ finish_wait(sk->sk_sleep, &wait);
- if(ret)
- return(ret);
+ if (ret)
+ return ret;
if (sk->sk_shutdown & RCV_SHUTDOWN)
break;
struct sock *sk = sock->sk;
struct irda_sock *self;
struct sk_buff *skb;
- unsigned char *asmptr;
int err;
IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
return -ENOTCONN;
self = irda_sk(sk);
- IRDA_ASSERT(self != NULL, return -1;);
/*
* Check that we don't send out too big frames. This is an unreliable
return -ENOBUFS;
skb_reserve(skb, self->max_header_size);
+ skb_reset_transport_header(skb);
IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__);
- asmptr = skb->h.raw = skb_put(skb, len);
- err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+ skb_put(skb, len);
+ err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
if (err) {
kfree_skb(skb);
return err;
__u8 pid = 0;
int bound = 0;
struct sk_buff *skb;
- unsigned char *asmptr;
int err;
IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
}
self = irda_sk(sk);
- IRDA_ASSERT(self != NULL, return -1;);
/* Check if an address was specified with sendto. Jean II */
if (msg->msg_name) {
return -ENOBUFS;
skb_reserve(skb, self->max_header_size);
+ skb_reset_transport_header(skb);
IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__);
- asmptr = skb->h.raw = skb_put(skb, len);
- err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+ skb_put(skb, len);
+ err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
if (err) {
kfree_skb(skb);
return err;
struct sock *sk = sock->sk;
struct irda_sock *self = irda_sk(sk);
- IRDA_ASSERT(self != NULL, return -1;);
-
IRDA_DEBUG(1, "%s(%p)\n", __FUNCTION__, self);
sk->sk_state = TCP_CLOSE;
struct ias_attrib * ias_attr; /* Attribute in IAS object */
int opt;
- IRDA_ASSERT(self != NULL, return -1;);
-
IRDA_DEBUG(2, "%s(%p)\n", __FUNCTION__, self);
if (level != SOL_IRLMP)
* Inserting is a little bit tricky since we don't know how much
* room we will need. But this should hopefully work OK
*/
- count = irda_param_insert(self, pi, skb->tail, skb_tailroom(skb),
- &ircomm_param_info);
+ count = irda_param_insert(self, pi, skb_tail_pointer(skb),
+ skb_tailroom(skb), &ircomm_param_info);
if (count < 0) {
IRDA_WARNING("%s(), no room for parameter!\n", __FUNCTION__);
spin_unlock_irqrestore(&self->spinlock, flags);
dongle_t *irda_device_dongle_init(struct net_device *dev, int type)
{
struct dongle_reg *reg;
- dongle_t *dongle = NULL;
+ dongle_t *dongle = kzalloc(sizeof(dongle_t), GFP_KERNEL);
might_sleep();
if (!reg || !try_module_get(reg->owner) ) {
IRDA_ERROR("IrDA: Unable to find requested dongle type %x\n",
type);
- goto out;
+ kfree(dongle);
+ dongle = NULL;
+ }
+ if (dongle) {
+ /* Bind the registration info to this particular instance */
+ dongle->issue = reg;
+ dongle->dev = dev;
}
-
- /* Allocate dongle info for this instance */
- dongle = kzalloc(sizeof(dongle_t), GFP_KERNEL);
- if (!dongle)
- goto out;
-
- /* Bind the registration info to this particular instance */
- dongle->issue = reg;
- dongle->dev = dev;
-
- out:
spin_unlock(&dongles->hb_spinlock);
return dongle;
}
}
/* Insert at end of sk-buffer */
- frame = skb->tail;
+ frame = skb_tail_pointer(skb);
/* Make space for data */
if (skb_tailroom(skb) < (param_len+value_len+3)) {
* might have been previously set by the low level IrDA network
* device driver
*/
- skb->dev = self->dev;
- skb->protocol=eth_type_trans(skb, skb->dev); /* Remove eth header */
+ skb->protocol = eth_type_trans(skb, self->dev); /* Remove eth header */
self->stats.rx_packets++;
self->stats.rx_bytes += skb->len;
if (!self->discovery_log) {
IRDA_WARNING("%s: discovery log is gone! "
"maybe the discovery timeout has been set"
- " to short?\n", __FUNCTION__);
+ " too short?\n", __FUNCTION__);
break;
}
hashbin_insert(self->discovery_log,
{
/* Some common init stuff */
skb->dev = self->netdev;
- skb->h.raw = skb->nh.raw = skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
skb->protocol = htons(ETH_P_IRDA);
skb->priority = TC_PRIO_BESTEFFORT;
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
if (!pskb_may_pull(skb, sizeof(struct xid_frame))) {
- IRDA_ERROR("%s: frame to short!\n", __FUNCTION__);
+ IRDA_ERROR("%s: frame too short!\n", __FUNCTION__);
return;
}
char *text;
if (!pskb_may_pull(skb, sizeof(struct xid_frame))) {
- IRDA_ERROR("%s: frame to short!\n", __FUNCTION__);
+ IRDA_ERROR("%s: frame too short!\n", __FUNCTION__);
return;
}
/* Check if things are sane at this point... */
if((discovery_info == NULL) ||
!pskb_may_pull(skb, 3)) {
- IRDA_ERROR("%s: discovery frame to short!\n",
+ IRDA_ERROR("%s: discovery frame too short!\n",
__FUNCTION__);
return;
}
IRDA_ASSERT(info != NULL, return;);
if (!pskb_may_pull(skb, 4)) {
- IRDA_ERROR("%s: frame to short!\n", __FUNCTION__);
+ IRDA_ERROR("%s: frame too short!\n", __FUNCTION__);
return;
}
IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
if (!pskb_may_pull(skb, sizeof(*frame))) {
- IRDA_ERROR("%s: frame to short!\n", __FUNCTION__);
+ IRDA_ERROR("%s: frame too short!\n", __FUNCTION__);
return;
}
frame = (struct test_frame *) skb->data;
/* Broadcast frames must carry saddr and daddr fields */
if (info->caddr == CBROADCAST) {
if (skb->len < sizeof(struct test_frame)) {
- IRDA_DEBUG(0, "%s() test frame to short!\n",
+ IRDA_DEBUG(0, "%s() test frame too short!\n",
__FUNCTION__);
return;
}
/* Check if frame is large enough for parsing */
if (!pskb_may_pull(skb, 2)) {
- IRDA_ERROR("%s: frame to short!\n", __FUNCTION__);
+ IRDA_ERROR("%s: frame too short!\n", __FUNCTION__);
dev_kfree_skb(skb);
return -1;
}
* for deallocating this structure if it's complex. If not the user can
* just supply kfree, which should take care of the job.
*/
+#ifdef CONFIG_LOCKDEP
+static int hashbin_lock_depth = 0;
+#endif
int hashbin_delete( hashbin_t* hashbin, FREE_FUNC free_func)
{
irda_queue_t* queue;
/* Synchronize */
if ( hashbin->hb_type & HB_LOCK ) {
- spin_lock_irqsave(&hashbin->hb_spinlock, flags);
+ spin_lock_irqsave_nested(&hashbin->hb_spinlock, flags,
+ hashbin_lock_depth++);
}
/*
/* Release lock */
if ( hashbin->hb_type & HB_LOCK) {
spin_unlock_irqrestore(&hashbin->hb_spinlock, flags);
+#ifdef CONFIG_LOCKDEP
+ hashbin_lock_depth--;
+#endif
}
/*
* Copy all fragments to a new buffer
*/
while ((frag = skb_dequeue(&self->rx_fragments)) != NULL) {
- memcpy(skb->data+n, frag->data, frag->len);
+ skb_copy_to_linear_data_offset(skb, n, frag->data, frag->len);
n += frag->len;
dev_kfree_skb(frag);
skb_reserve(frag, self->max_header_size);
/* Copy data from the original skb into this fragment. */
- memcpy(skb_put(frag, self->max_seg_size), skb->data,
- self->max_seg_size);
+ skb_copy_from_linear_data(skb, skb_put(frag, self->max_seg_size),
+ self->max_seg_size);
/* Insert TTP header, with the more bit set */
frame = skb_push(frag, TTP_HEADER);
}
if (skb->len > self->max_seg_size) {
- IRDA_DEBUG(1, "%s(), UData is to large for IrLAP!\n",
+ IRDA_DEBUG(1, "%s(), UData is too large for IrLAP!\n",
__FUNCTION__);
goto err;
}
* inside an IrLAP frame
*/
if ((self->tx_max_sdu_size == 0) && (skb->len > self->max_seg_size)) {
- IRDA_ERROR("%s: SAR disabled, and data is to large for IrLAP!\n",
+ IRDA_ERROR("%s: SAR disabled, and data is too large for IrLAP!\n",
__FUNCTION__);
ret = -EMSGSIZE;
goto err;
}
/* Check if buffer is long enough for insertion */
if (len < (2+p.pl)) {
- IRDA_WARNING("%s: buffer to short for insertion!\n",
+ IRDA_WARNING("%s: buffer too short for insertion!\n",
__FUNCTION__);
return -1;
}
/* Check if buffer is long enough for parsing */
if (len < (2+p.pl)) {
- IRDA_WARNING("%s: buffer to short for parsing! "
+ IRDA_WARNING("%s: buffer too short for parsing! "
"Need %d bytes, but len is only %d\n",
__FUNCTION__, p.pl, len);
return -1;
/* Check if buffer is long enough for parsing */
if (len < (2+p.pl)) {
- IRDA_WARNING("%s: buffer to short for parsing! "
+ IRDA_WARNING("%s: buffer too short for parsing! "
"Need %d bytes, but len is only %d\n",
__FUNCTION__, p.pl, len);
return -1;
/* Check if buffer is long enough for parsing */
if (len < (2+p.pl)) {
- IRDA_WARNING("%s: buffer to short for parsing! "
+ IRDA_WARNING("%s: buffer too short for parsing! "
"Need %d bytes, but len is only %d\n",
__FUNCTION__, p.pl, len);
return -1;
int ret;
/* Insert data rate */
- ret = irda_param_insert(self, PI_BAUD_RATE, skb->tail,
+ ret = irda_param_insert(self, PI_BAUD_RATE, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
skb_put(skb, ret);
/* Insert max turnaround time */
- ret = irda_param_insert(self, PI_MAX_TURN_TIME, skb->tail,
+ ret = irda_param_insert(self, PI_MAX_TURN_TIME, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
skb_put(skb, ret);
/* Insert data size */
- ret = irda_param_insert(self, PI_DATA_SIZE, skb->tail,
+ ret = irda_param_insert(self, PI_DATA_SIZE, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
skb_put(skb, ret);
/* Insert window size */
- ret = irda_param_insert(self, PI_WINDOW_SIZE, skb->tail,
+ ret = irda_param_insert(self, PI_WINDOW_SIZE, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
skb_put(skb, ret);
/* Insert additional BOFs */
- ret = irda_param_insert(self, PI_ADD_BOFS, skb->tail,
+ ret = irda_param_insert(self, PI_ADD_BOFS, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
skb_put(skb, ret);
/* Insert minimum turnaround time */
- ret = irda_param_insert(self, PI_MIN_TURN_TIME, skb->tail,
+ ret = irda_param_insert(self, PI_MIN_TURN_TIME, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
skb_put(skb, ret);
/* Insert link disconnect/threshold time */
- ret = irda_param_insert(self, PI_LINK_DISC, skb->tail,
+ ret = irda_param_insert(self, PI_LINK_DISC, skb_tail_pointer(skb),
skb_tailroom(skb), &irlap_param_info);
if (ret < 0)
return ret;
if(docopy) {
/* Copy data without CRC (lenght already checked) */
- memcpy(newskb->data, rx_buff->data, rx_buff->len - 2);
+ skb_copy_to_linear_data(newskb, rx_buff->data,
+ rx_buff->len - 2);
/* Deliver this skb */
dataskb = newskb;
} else {
/* Feed it to IrLAP layer */
dataskb->dev = dev;
- dataskb->mac.raw = dataskb->data;
+ skb_reset_mac_header(dataskb);
dataskb->protocol = htons(ETH_P_IRDA);
netif_rx(dataskb);
default:
sock_set_flag(sk, SOCK_ZAPPED);
break;
- };
+ }
release_sock(sk);
iucv_sock_kill(sk);
return;
}
- skb->h.raw = skb->data;
- skb->nh.raw = skb->data;
+ skb_reset_transport_header(skb);
+ skb_reset_network_header(skb);
skb->len = msg->length;
}
kfree(iucv_path_table);
}
-#ifdef CONFIG_HOTPLUG_CPU
static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
static struct notifier_block iucv_cpu_notifier = {
.notifier_call = iucv_cpu_notify,
};
-#endif
/**
* iucv_sever_pathid
*/
return -EINVAL;
break;
- };
+ }
return 0;
}
rq->sadb_x_ipsecrequest_proto = t->id.proto;
if ((mode = pfkey_mode_from_xfrm(t->mode)) < 0)
return -EINVAL;
- mode = pfkey_mode_from_xfrm(t->mode);
+ rq->sadb_x_ipsecrequest_mode = mode;
rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_REQUIRE;
if (t->reqid)
rq->sadb_x_ipsecrequest_level = IPSEC_LEVEL_UNIQUE;
copied = len;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
if (err)
goto out_free;
if (unlikely(!pskb_may_pull(skb, llc_len)))
return 0;
- skb->h.raw += llc_len;
+ skb->transport_header += llc_len;
skb_pull(skb, llc_len);
if (skb->protocol == htons(ETH_P_802_2)) {
__be16 pdulen = eth_hdr(skb)->h_proto;
struct net_device *dev = skb->dev;
struct trh_hdr *trh;
- skb->mac.raw = skb_push(skb, sizeof(*trh));
+ skb_push(skb, sizeof(*trh));
+ skb_reset_mac_header(skb);
trh = tr_hdr(skb);
trh->ac = AC;
trh->fc = LLC_FRAME;
if (da) {
memcpy(trh->daddr, da, dev->addr_len);
tr_source_route(skb, trh, dev);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
}
break;
}
unsigned short len = skb->len;
struct ethhdr *eth;
- skb->mac.raw = skb_push(skb, sizeof(*eth));
+ skb_push(skb, sizeof(*eth));
+ skb_reset_mac_header(skb);
eth = eth_hdr(skb);
eth->h_proto = htons(len);
memcpy(eth->h_dest, da, ETH_ALEN);
struct sk_buff *skb = alloc_skb(128, GFP_ATOMIC);
if (skb) {
+ skb_reset_mac_header(skb);
skb_reserve(skb, 50);
- skb->nh.raw = skb->h.raw = skb->data;
+ skb_reset_network_header(skb);
+ skb_reset_transport_header(skb);
skb->protocol = htons(ETH_P_802_2);
skb->dev = dev;
- skb->mac.raw = skb->head;
if (sk != NULL)
skb_set_owner_w(skb, sk);
}
and is also scheduled to replace the old syslog-based ipt_LOG
and ip6t_LOG modules.
+# Rename this to NF_CONNTRACK in a 2.6.25
config NF_CONNTRACK_ENABLED
tristate "Netfilter connection tracking support"
help
To compile it as a module, choose M here. If unsure, say N.
-choice
- prompt "Netfilter connection tracking support"
- depends on NF_CONNTRACK_ENABLED
-
-config NF_CONNTRACK_SUPPORT
- bool "Layer 3 Independent Connection tracking"
- help
- Layer 3 independent connection tracking is experimental scheme
- which generalize ip_conntrack to support other layer 3 protocols.
-
- This is required to do Masquerading or other kinds of Network
- Address Translation (except for Fast NAT). It can also be used to
- enhance packet filtering (see `Connection state match support'
- below).
-
-config IP_NF_CONNTRACK_SUPPORT
- bool "Layer 3 Dependent Connection tracking (OBSOLETE)"
- help
- The old, Layer 3 dependent ip_conntrack subsystem of netfilter.
-
- This is required to do Masquerading or other kinds of Network
- Address Translation (except for Fast NAT). It can also be used to
- enhance packet filtering (see `Connection state match support'
- below).
-
-endchoice
-
config NF_CONNTRACK
tristate
- default m if NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=m
- default y if NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=y
-
-config IP_NF_CONNTRACK
- tristate
- default m if IP_NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=m
- default y if IP_NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=y
+ default NF_CONNTRACK_ENABLED
config NF_CT_ACCT
bool "Connection tracking flow accounting"
tristate '"CONNMARK" target support'
depends on NETFILTER_XTABLES
depends on IP_NF_MANGLE || IP6_NF_MANGLE
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
- select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK
- select NF_CONNTRACK_MARK if NF_CONNTRACK
+ depends on NF_CONNTRACK
+ select NF_CONNTRACK_MARK
help
This option adds a `CONNMARK' target, which allows one to manipulate
the connection mark value. Similar to the MARK target, but
tristate '"NOTRACK" target support'
depends on NETFILTER_XTABLES
depends on IP_NF_RAW || IP6_NF_RAW
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
+ depends on NF_CONNTRACK
help
The NOTRACK target allows a select rule to specify
which packets *not* to enter the conntrack/NAT
config NETFILTER_XT_TARGET_CONNSECMARK
tristate '"CONNSECMARK" target support'
- depends on NETFILTER_XTABLES && \
- ((NF_CONNTRACK && NF_CONNTRACK_SECMARK) || \
- (IP_NF_CONNTRACK && IP_NF_CONNTRACK_SECMARK))
+ depends on NETFILTER_XTABLES && NF_CONNTRACK && NF_CONNTRACK_SECMARK
help
The CONNSECMARK target copies security markings from packets
to connections, and restores security markings from connections
config NETFILTER_XT_MATCH_CONNBYTES
tristate '"connbytes" per-connection counter match support'
depends on NETFILTER_XTABLES
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
- select IP_NF_CT_ACCT if IP_NF_CONNTRACK
- select NF_CT_ACCT if NF_CONNTRACK
+ depends on NF_CONNTRACK
+ select NF_CT_ACCT
help
This option adds a `connbytes' match, which allows you to match the
number of bytes and/or packets for each direction within a connection.
config NETFILTER_XT_MATCH_CONNMARK
tristate '"connmark" connection mark match support'
depends on NETFILTER_XTABLES
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
- select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK
- select NF_CONNTRACK_MARK if NF_CONNTRACK
+ depends on NF_CONNTRACK
+ select NF_CONNTRACK_MARK
help
This option adds a `connmark' match, which allows you to match the
connection mark value previously set for the session by `CONNMARK'.
config NETFILTER_XT_MATCH_CONNTRACK
tristate '"conntrack" connection tracking match support'
depends on NETFILTER_XTABLES
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
+ depends on NF_CONNTRACK
help
This is a general conntrack match module, a superset of the state match.
config NETFILTER_XT_MATCH_HELPER
tristate '"helper" match support'
depends on NETFILTER_XTABLES
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
+ depends on NF_CONNTRACK
help
Helper matching allows you to match packets in dynamic connections
tracked by a conntrack-helper, ie. ip_conntrack_ftp
config NETFILTER_XT_MATCH_STATE
tristate '"state" match support'
depends on NETFILTER_XTABLES
- depends on IP_NF_CONNTRACK || NF_CONNTRACK
+ depends on NF_CONNTRACK
help
Connection state matching allows you to match packets based on their
relationship to a tracked connection (ie. previous packets). This
* way.
*
* Rusty Russell (C)2000 -- This code is GPL.
- *
- * February 2000: Modified by James Morris to have 1 queue per protocol.
- * 15-Mar-2000: Added NF_REPEAT --RR.
- * 08-May-2003: Internal logging interface added by Jozsef Kadlecsik.
*/
#include <linux/kernel.h>
#include <linux/netfilter.h>
}
EXPORT_SYMBOL(nf_proto_csum_replace4);
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
/* This does not belong here, but locally generated errors need it if connection
tracking in use: without this, connection may not be in hash table, and hence
manufactured ICMP or RST packets will not be associated with it. */
}
EXPORT_SYMBOL(nf_ct_attach);
+void (*nf_ct_destroy)(struct nf_conntrack *);
+EXPORT_SYMBOL(nf_ct_destroy);
+
+void nf_conntrack_destroy(struct nf_conntrack *nfct)
+{
+ void (*destroy)(struct nf_conntrack *);
+
+ rcu_read_lock();
+ destroy = rcu_dereference(nf_ct_destroy);
+ BUG_ON(destroy == NULL);
+ destroy(nfct);
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(nf_conntrack_destroy);
+#endif /* CONFIG_NF_CONNTRACK */
+
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc_net_netfilter;
EXPORT_SYMBOL(proc_net_netfilter);
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 23 Apr 2001: Harald Welte <laforge@gnumonks.org>
- * - new API and handling of conntrack/nat helpers
- * - now capable of multiple expectations for one master
- * 16 Jul 2002: Harald Welte <laforge@gnumonks.org>
- * - add usage/reference counts to ip_conntrack_expect
- * - export ip_conntrack[_expect]_{find_get,put} functions
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - generalize L3 protocol denendent part.
- * 23 Mar 2004: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - add support various size of conntrack structures.
- * 26 Jan 2006: Harald Welte <laforge@netfilter.org>
- * - restructure nf_conn (introduce nf_conn_help)
- * - redesign 'features' how they were originally intended
- * 26 Feb 2006: Pablo Neira Ayuso <pablo@eurodev.net>
- * - add support for L3 protocol module load on demand.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_core.c
*/
#include <linux/types.h>
unsigned int size, unsigned int rnd)
{
unsigned int a, b;
- a = jhash((void *)tuple->src.u3.all, sizeof(tuple->src.u3.all),
- ((tuple->src.l3num) << 16) | tuple->dst.protonum);
- b = jhash((void *)tuple->dst.u3.all, sizeof(tuple->dst.u3.all),
- (tuple->src.u.all << 16) | tuple->dst.u.all);
+
+ a = jhash2(tuple->src.u3.all, ARRAY_SIZE(tuple->src.u3.all),
+ (tuple->src.l3num << 16) | tuple->dst.protonum);
+ b = jhash2(tuple->dst.u3.all, ARRAY_SIZE(tuple->dst.u3.all),
+ (tuple->src.u.all << 16) | tuple->dst.u.all);
return jhash_2words(a, b, rnd) % size;
}
memset(conntrack, 0, nf_ct_cache[features].size);
conntrack->features = features;
atomic_set(&conntrack->ct_general.use, 1);
- conntrack->ct_general.destroy = destroy_conntrack;
conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig;
conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *repl;
/* Don't set timer yet: wait for confirmation */
- init_timer(&conntrack->timeout);
- conntrack->timeout.data = (unsigned long)conntrack;
- conntrack->timeout.function = death_by_timeout;
+ setup_timer(&conntrack->timeout, death_by_timeout,
+ (unsigned long)conntrack);
read_unlock_bh(&nf_ct_cache_lock);
return conntrack;
struct nf_conntrack_tuple_hash *h;
struct nf_conn *ct;
- if (!nf_ct_get_tuple(skb, (unsigned int)(skb->nh.raw - skb->data),
+ if (!nf_ct_get_tuple(skb, skb_network_offset(skb),
dataoff, l3num, protonum, &tuple, l3proto,
l4proto)) {
DEBUGP("resolve_normal_ct: Can't get tuple\n");
if (do_acct) {
ct->counters[CTINFO2DIR(ctinfo)].packets++;
ct->counters[CTINFO2DIR(ctinfo)].bytes +=
- skb->len - (unsigned int)(skb->nh.raw - skb->data);
+ skb->len - skb_network_offset(skb);
if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000)
|| (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000))
while (atomic_read(&nf_conntrack_untracked.ct_general.use) > 1)
schedule();
+ rcu_assign_pointer(nf_ct_destroy, NULL);
+
for (i = 0; i < NF_CT_F_NUM; i++) {
if (nf_ct_cache[i].use == 0)
continue;
free_conntrack_hash(nf_conntrack_hash, nf_conntrack_vmalloc,
nf_conntrack_htable_size);
- nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_generic);
-
- /* free l3proto protocol tables */
- for (i = 0; i < PF_MAX; i++)
- if (nf_ct_protos[i]) {
- kfree(nf_ct_protos[i]);
- nf_ct_protos[i] = NULL;
- }
+ nf_conntrack_proto_fini();
}
static struct list_head *alloc_hashtable(int size, int *vmalloced)
int __init nf_conntrack_init(void)
{
- unsigned int i;
int ret;
/* Idea from tcp.c: use 1/16384 of memory. On i386: 32MB
goto err_free_conntrack_slab;
}
- ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_generic);
+ ret = nf_conntrack_proto_init();
if (ret < 0)
goto out_free_expect_slab;
- /* Don't NEED lock here, but good form anyway. */
- write_lock_bh(&nf_conntrack_lock);
- for (i = 0; i < AF_MAX; i++)
- nf_ct_l3protos[i] = &nf_conntrack_l3proto_generic;
- write_unlock_bh(&nf_conntrack_lock);
-
/* For use by REJECT target */
rcu_assign_pointer(ip_ct_attach, __nf_conntrack_attach);
+ rcu_assign_pointer(nf_ct_destroy, destroy_conntrack);
/* Set up fake conntrack:
- to never be deleted, not in any hashes */
}
}
+int nf_conntrack_register_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_register(&nf_conntrack_chain, nb);
+}
+EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier);
+
+int nf_conntrack_unregister_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(&nf_conntrack_chain, nb);
+}
+EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier);
+
+int nf_conntrack_expect_register_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_register(&nf_conntrack_expect_chain, nb);
+}
+EXPORT_SYMBOL_GPL(nf_conntrack_expect_register_notifier);
+
+int nf_conntrack_expect_unregister_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(&nf_conntrack_expect_chain, nb);
+}
+EXPORT_SYMBOL_GPL(nf_conntrack_expect_unregister_notifier);
master_help->expecting++;
list_add(&exp->list, &nf_conntrack_expect_list);
- init_timer(&exp->timeout);
- exp->timeout.data = (unsigned long)exp;
- exp->timeout.function = expectation_timed_out;
+ setup_timer(&exp->timeout, expectation_timed_out, (unsigned long)exp);
exp->timeout.expires = jiffies + master_help->helper->timeout * HZ;
add_timer(&exp->timeout);
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - enable working with Layer 3 protocol independent connection tracking.
- * - track EPRT and EPSV commands with IPv6 address.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_ftp.c
*/
#include <linux/module.h>
struct nf_conn *ct, enum ip_conntrack_info ctinfo)
{
struct nf_conntrack_expect *exp;
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
struct rtable *rt = (struct rtable *)(*pskb)->dst;
struct in_device *in_dev;
__be32 mask = 0;
* (C) 2003 by Patrick Mchardy <kaber@trash.net>
* (C) 2005-2006 by Pablo Neira Ayuso <pablo@eurodev.net>
*
- * I've reworked this stuff to use attributes instead of conntrack
- * structures. 5.44 am. I need more tea. --pablo 05/07/11.
- *
* Initial connection tracking via netlink development funded and
* generally made possible by Network Robots, Inc. (www.networkrobots.com)
*
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
- *
- * Derived from ip_conntrack_netlink.c: Port by Pablo Neira Ayuso (05/11/14)
*/
#include <linux/init.h>
#include <linux/notifier.h>
#include <linux/netfilter.h>
+#include <net/netlink.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_expect.h>
struct nlmsghdr *nlh;
struct nfgenmsg *nfmsg;
struct nfattr *nest_parms;
- unsigned char *b;
-
- b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
event |= NFNL_SUBSYS_CTNETLINK << 8;
nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(struct nfgenmsg));
ctnetlink_dump_use(skb, ct) < 0)
goto nfattr_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
nfattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct nf_conn *ct = (struct nf_conn *)ptr;
struct sk_buff *skb;
unsigned int type;
- unsigned char *b;
+ sk_buff_data_t b;
unsigned int flags = 0, group;
/* ignore our fake conntrack entry */
static int
ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *cda[])
{
struct nf_conntrack_tuple_hash *h;
struct nf_conntrack_tuple tuple;
static int
ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *cda[])
{
struct nf_conntrack_tuple_hash *h;
struct nf_conntrack_tuple tuple;
int err = 0;
if (nlh->nlmsg_flags & NLM_F_DUMP) {
- u32 rlen;
-
#ifndef CONFIG_NF_CT_ACCT
if (NFNL_MSG_TYPE(nlh->nlmsg_type) == IPCTNL_MSG_CT_GET_CTRZERO)
return -ENOTSUPP;
#endif
- if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_dump_table,
- ctnetlink_done)) != 0)
- return -EINVAL;
-
- rlen = NLMSG_ALIGN(nlh->nlmsg_len);
- if (rlen > skb->len)
- rlen = skb->len;
- skb_pull(skb, rlen);
- return 0;
+ return netlink_dump_start(ctnl, skb, nlh, ctnetlink_dump_table,
+ ctnetlink_done);
}
if (nfattr_bad_size(cda, CTA_MAX, cta_min))
static int
ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *cda[])
{
struct nf_conntrack_tuple otuple, rtuple;
struct nf_conntrack_tuple_hash *h = NULL;
{
struct nlmsghdr *nlh;
struct nfgenmsg *nfmsg;
- unsigned char *b;
-
- b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
event |= NFNL_SUBSYS_CTNETLINK_EXP << 8;
nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(struct nfgenmsg));
if (ctnetlink_exp_dump_expect(skb, exp) < 0)
goto nfattr_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
nfattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct nf_conntrack_expect *exp = (struct nf_conntrack_expect *)ptr;
struct sk_buff *skb;
unsigned int type;
- unsigned char *b;
+ sk_buff_data_t b;
int flags = 0;
if (events & IPEXP_NEW) {
static int
ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *cda[])
{
struct nf_conntrack_tuple tuple;
struct nf_conntrack_expect *exp;
return -EINVAL;
if (nlh->nlmsg_flags & NLM_F_DUMP) {
- u32 rlen;
-
- if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_exp_dump_table,
- ctnetlink_done)) != 0)
- return -EINVAL;
- rlen = NLMSG_ALIGN(nlh->nlmsg_len);
- if (rlen > skb->len)
- rlen = skb->len;
- skb_pull(skb, rlen);
- return 0;
+ return netlink_dump_start(ctnl, skb, nlh,
+ ctnetlink_exp_dump_table,
+ ctnetlink_done);
}
if (cda[CTA_EXPECT_MASTER-1])
static int
ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *cda[])
{
struct nf_conntrack_expect *exp, *tmp;
struct nf_conntrack_tuple tuple;
static int
ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *cda[])
{
struct nf_conntrack_tuple tuple;
struct nf_conntrack_expect *exp;
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_core.h>
-struct nf_conntrack_l4proto **nf_ct_protos[PF_MAX] __read_mostly;
+static struct nf_conntrack_l4proto **nf_ct_protos[PF_MAX] __read_mostly;
struct nf_conntrack_l3proto *nf_ct_l3protos[AF_MAX] __read_mostly;
EXPORT_SYMBOL_GPL(nf_ct_l3protos);
-#ifdef CONFIG_SYSCTL
-static DEFINE_MUTEX(nf_ct_proto_sysctl_mutex);
+static DEFINE_MUTEX(nf_ct_proto_mutex);
+#ifdef CONFIG_SYSCTL
static int
nf_ct_register_sysctl(struct ctl_table_header **header, struct ctl_table *path,
struct ctl_table *table, unsigned int *users)
int err = 0;
#ifdef CONFIG_SYSCTL
- mutex_lock(&nf_ct_proto_sysctl_mutex);
if (l3proto->ctl_table != NULL) {
err = nf_ct_register_sysctl(&l3proto->ctl_table_header,
l3proto->ctl_table_path,
l3proto->ctl_table, NULL);
}
- mutex_unlock(&nf_ct_proto_sysctl_mutex);
#endif
return err;
}
static void nf_ct_l3proto_unregister_sysctl(struct nf_conntrack_l3proto *l3proto)
{
#ifdef CONFIG_SYSCTL
- mutex_lock(&nf_ct_proto_sysctl_mutex);
if (l3proto->ctl_table_header != NULL)
nf_ct_unregister_sysctl(&l3proto->ctl_table_header,
l3proto->ctl_table, NULL);
- mutex_unlock(&nf_ct_proto_sysctl_mutex);
#endif
}
{
int ret = 0;
- if (proto->l3proto >= AF_MAX) {
- ret = -EBUSY;
- goto out;
- }
+ if (proto->l3proto >= AF_MAX)
+ return -EBUSY;
- write_lock_bh(&nf_conntrack_lock);
+ mutex_lock(&nf_ct_proto_mutex);
if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_l3proto_generic) {
ret = -EBUSY;
goto out_unlock;
}
- rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], proto);
- write_unlock_bh(&nf_conntrack_lock);
ret = nf_ct_l3proto_register_sysctl(proto);
if (ret < 0)
- nf_conntrack_l3proto_unregister(proto);
- return ret;
+ goto out_unlock;
+
+ rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], proto);
out_unlock:
- write_unlock_bh(&nf_conntrack_lock);
-out:
+ mutex_unlock(&nf_ct_proto_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_register);
{
BUG_ON(proto->l3proto >= AF_MAX);
- write_lock_bh(&nf_conntrack_lock);
+ mutex_lock(&nf_ct_proto_mutex);
BUG_ON(nf_ct_l3protos[proto->l3proto] != proto);
rcu_assign_pointer(nf_ct_l3protos[proto->l3proto],
&nf_conntrack_l3proto_generic);
- write_unlock_bh(&nf_conntrack_lock);
- synchronize_rcu();
-
nf_ct_l3proto_unregister_sysctl(proto);
+ mutex_unlock(&nf_ct_proto_mutex);
+
+ synchronize_rcu();
/* Remove all contrack entries for this protocol */
nf_ct_iterate_cleanup(kill_l3proto, proto);
int err = 0;
#ifdef CONFIG_SYSCTL
- mutex_lock(&nf_ct_proto_sysctl_mutex);
if (l4proto->ctl_table != NULL) {
err = nf_ct_register_sysctl(l4proto->ctl_table_header,
nf_net_netfilter_sysctl_path,
}
#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
out:
- mutex_unlock(&nf_ct_proto_sysctl_mutex);
#endif /* CONFIG_SYSCTL */
return err;
}
static void nf_ct_l4proto_unregister_sysctl(struct nf_conntrack_l4proto *l4proto)
{
#ifdef CONFIG_SYSCTL
- mutex_lock(&nf_ct_proto_sysctl_mutex);
if (l4proto->ctl_table_header != NULL &&
*l4proto->ctl_table_header != NULL)
nf_ct_unregister_sysctl(l4proto->ctl_table_header,
nf_ct_unregister_sysctl(&l4proto->ctl_compat_table_header,
l4proto->ctl_compat_table, NULL);
#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
- mutex_unlock(&nf_ct_proto_sysctl_mutex);
#endif /* CONFIG_SYSCTL */
}
{
int ret = 0;
- if (l4proto->l3proto >= PF_MAX) {
- ret = -EBUSY;
- goto out;
- }
-
- if (l4proto == &nf_conntrack_l4proto_generic)
- return nf_ct_l4proto_register_sysctl(l4proto);
+ if (l4proto->l3proto >= PF_MAX)
+ return -EBUSY;
-retry:
- write_lock_bh(&nf_conntrack_lock);
- if (nf_ct_protos[l4proto->l3proto]) {
- if (nf_ct_protos[l4proto->l3proto][l4proto->l4proto]
- != &nf_conntrack_l4proto_generic) {
- ret = -EBUSY;
- goto out_unlock;
- }
- } else {
+ mutex_lock(&nf_ct_proto_mutex);
+ if (!nf_ct_protos[l4proto->l3proto]) {
/* l3proto may be loaded latter. */
struct nf_conntrack_l4proto **proto_array;
int i;
- write_unlock_bh(&nf_conntrack_lock);
-
- proto_array = (struct nf_conntrack_l4proto **)
- kmalloc(MAX_NF_CT_PROTO *
- sizeof(struct nf_conntrack_l4proto *),
- GFP_KERNEL);
+ proto_array = kmalloc(MAX_NF_CT_PROTO *
+ sizeof(struct nf_conntrack_l4proto *),
+ GFP_KERNEL);
if (proto_array == NULL) {
ret = -ENOMEM;
- goto out;
+ goto out_unlock;
}
+
for (i = 0; i < MAX_NF_CT_PROTO; i++)
proto_array[i] = &nf_conntrack_l4proto_generic;
-
- write_lock_bh(&nf_conntrack_lock);
- if (nf_ct_protos[l4proto->l3proto]) {
- /* bad timing, but no problem */
- write_unlock_bh(&nf_conntrack_lock);
- kfree(proto_array);
- } else {
- nf_ct_protos[l4proto->l3proto] = proto_array;
- write_unlock_bh(&nf_conntrack_lock);
- }
-
- /*
- * Just once because array is never freed until unloading
- * nf_conntrack.ko
- */
- goto retry;
+ nf_ct_protos[l4proto->l3proto] = proto_array;
+ } else if (nf_ct_protos[l4proto->l3proto][l4proto->l4proto] !=
+ &nf_conntrack_l4proto_generic) {
+ ret = -EBUSY;
+ goto out_unlock;
}
- rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto], l4proto);
- write_unlock_bh(&nf_conntrack_lock);
-
ret = nf_ct_l4proto_register_sysctl(l4proto);
if (ret < 0)
- nf_conntrack_l4proto_unregister(l4proto);
- return ret;
+ goto out_unlock;
+
+ rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto],
+ l4proto);
out_unlock:
- write_unlock_bh(&nf_conntrack_lock);
-out:
+ mutex_unlock(&nf_ct_proto_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_register);
{
BUG_ON(l4proto->l3proto >= PF_MAX);
- if (l4proto == &nf_conntrack_l4proto_generic) {
- nf_ct_l4proto_unregister_sysctl(l4proto);
- return;
- }
-
- write_lock_bh(&nf_conntrack_lock);
+ mutex_lock(&nf_ct_proto_mutex);
BUG_ON(nf_ct_protos[l4proto->l3proto][l4proto->l4proto] != l4proto);
rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto],
&nf_conntrack_l4proto_generic);
- write_unlock_bh(&nf_conntrack_lock);
- synchronize_rcu();
-
nf_ct_l4proto_unregister_sysctl(l4proto);
+ mutex_unlock(&nf_ct_proto_mutex);
+
+ synchronize_rcu();
/* Remove all contrack entries for this protocol */
nf_ct_iterate_cleanup(kill_l4proto, l4proto);
}
EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister);
+
+int nf_conntrack_proto_init(void)
+{
+ unsigned int i;
+ int err;
+
+ err = nf_ct_l4proto_register_sysctl(&nf_conntrack_l4proto_generic);
+ if (err < 0)
+ return err;
+
+ for (i = 0; i < AF_MAX; i++)
+ rcu_assign_pointer(nf_ct_l3protos[i],
+ &nf_conntrack_l3proto_generic);
+ return 0;
+}
+
+void nf_conntrack_proto_fini(void)
+{
+ unsigned int i;
+
+ nf_ct_l4proto_unregister_sysctl(&nf_conntrack_l4proto_generic);
+
+ /* free l3proto protocol tables */
+ for (i = 0; i < PF_MAX; i++)
+ kfree(nf_ct_protos[i]);
+}
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - enable working with L3 protocol independent connection tracking.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_proto_generic.c
*/
#include <linux/types.h>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 17 Oct 2004: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - enable working with L3 protocol independent connection tracking.
- *
- * Derived from net/ipv4/ip_conntrack_sctp.c
- */
-
-/*
- * Added support for proc manipulation of timeouts.
*/
#include <linux/types.h>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>:
- * - Real stateful connection tracking
- * - Modified state transitions table
- * - Window scaling support added
- * - SACK support added
- *
- * Willy Tarreau:
- * - State table bugfixes
- * - More robust state changes
- * - Tuning timer parameters
- *
- * 27 Oct 2004: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - genelized Layer 3 protocol part.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_proto_tcp.c
- *
- * version 2.2
*/
#include <linux/types.h>
/* Fast path for timestamp-only option */
if (length == TCPOLEN_TSTAMP_ALIGNED*4
- && *(__be32 *)ptr ==
- __constant_htonl((TCPOPT_NOP << 24)
- | (TCPOPT_NOP << 16)
- | (TCPOPT_TIMESTAMP << 8)
- | TCPOLEN_TIMESTAMP))
+ && *(__be32 *)ptr == htonl((TCPOPT_NOP << 24)
+ | (TCPOPT_NOP << 16)
+ | (TCPOPT_TIMESTAMP << 8)
+ | TCPOLEN_TIMESTAMP))
return;
while (length > 0) {
#define TH_ECE 0x40
#define TH_CWR 0x80
-/* table of valid flag combinations - ECE and CWR are always valid */
-static u8 tcp_valid_flags[(TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG) + 1] =
+/* table of valid flag combinations - PUSH, ECE and CWR are always valid */
+static u8 tcp_valid_flags[(TH_FIN|TH_SYN|TH_RST|TH_ACK|TH_URG) + 1] =
{
[TH_SYN] = 1,
- [TH_SYN|TH_PUSH] = 1,
[TH_SYN|TH_URG] = 1,
- [TH_SYN|TH_PUSH|TH_URG] = 1,
[TH_SYN|TH_ACK] = 1,
- [TH_SYN|TH_ACK|TH_PUSH] = 1,
[TH_RST] = 1,
[TH_RST|TH_ACK] = 1,
- [TH_RST|TH_ACK|TH_PUSH] = 1,
[TH_FIN|TH_ACK] = 1,
+ [TH_FIN|TH_ACK|TH_URG] = 1,
[TH_ACK] = 1,
- [TH_ACK|TH_PUSH] = 1,
[TH_ACK|TH_URG] = 1,
- [TH_ACK|TH_URG|TH_PUSH] = 1,
- [TH_FIN|TH_ACK|TH_PUSH] = 1,
- [TH_FIN|TH_ACK|TH_URG] = 1,
- [TH_FIN|TH_ACK|TH_URG|TH_PUSH] = 1,
};
/* Protect conntrack agaist broken packets. Code taken from ipt_unclean.c. */
}
/* Check TCP flags. */
- tcpflags = (((u_int8_t *)th)[13] & ~(TH_ECE|TH_CWR));
+ tcpflags = (((u_int8_t *)th)[13] & ~(TH_ECE|TH_CWR|TH_PUSH));
if (!tcp_valid_flags[tcpflags]) {
if (LOG_INVALID(IPPROTO_TCP))
nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
const struct nf_conn *ct)
{
struct nfattr *nest_parms;
+ struct nf_ct_tcp_flags tmp = {};
read_lock_bh(&tcp_lock);
nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
&ct->proto.tcp.state);
+
+ NFA_PUT(skb, CTA_PROTOINFO_TCP_WSCALE_ORIGINAL, sizeof(u_int8_t),
+ &ct->proto.tcp.seen[0].td_scale);
+
+ NFA_PUT(skb, CTA_PROTOINFO_TCP_WSCALE_REPLY, sizeof(u_int8_t),
+ &ct->proto.tcp.seen[1].td_scale);
+
+ tmp.flags = ct->proto.tcp.seen[0].flags;
+ NFA_PUT(skb, CTA_PROTOINFO_TCP_FLAGS_ORIGINAL,
+ sizeof(struct nf_ct_tcp_flags), &tmp);
+
+ tmp.flags = ct->proto.tcp.seen[1].flags;
+ NFA_PUT(skb, CTA_PROTOINFO_TCP_FLAGS_REPLY,
+ sizeof(struct nf_ct_tcp_flags), &tmp);
read_unlock_bh(&tcp_lock);
NFA_NEST_END(skb, nest_parms);
}
static const size_t cta_min_tcp[CTA_PROTOINFO_TCP_MAX] = {
- [CTA_PROTOINFO_TCP_STATE-1] = sizeof(u_int8_t),
+ [CTA_PROTOINFO_TCP_STATE-1] = sizeof(u_int8_t),
+ [CTA_PROTOINFO_TCP_WSCALE_ORIGINAL-1] = sizeof(u_int8_t),
+ [CTA_PROTOINFO_TCP_WSCALE_REPLY-1] = sizeof(u_int8_t),
+ [CTA_PROTOINFO_TCP_FLAGS_ORIGINAL-1] = sizeof(struct nf_ct_tcp_flags),
+ [CTA_PROTOINFO_TCP_FLAGS_REPLY-1] = sizeof(struct nf_ct_tcp_flags)
};
static int nfattr_to_tcp(struct nfattr *cda[], struct nf_conn *ct)
write_lock_bh(&tcp_lock);
ct->proto.tcp.state =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTOINFO_TCP_STATE-1]);
+
+ if (tb[CTA_PROTOINFO_TCP_FLAGS_ORIGINAL-1]) {
+ struct nf_ct_tcp_flags *attr =
+ NFA_DATA(tb[CTA_PROTOINFO_TCP_FLAGS_ORIGINAL-1]);
+ ct->proto.tcp.seen[0].flags &= ~attr->mask;
+ ct->proto.tcp.seen[0].flags |= attr->flags & attr->mask;
+ }
+
+ if (tb[CTA_PROTOINFO_TCP_FLAGS_REPLY-1]) {
+ struct nf_ct_tcp_flags *attr =
+ NFA_DATA(tb[CTA_PROTOINFO_TCP_FLAGS_REPLY-1]);
+ ct->proto.tcp.seen[1].flags &= ~attr->mask;
+ ct->proto.tcp.seen[1].flags |= attr->flags & attr->mask;
+ }
+
+ if (tb[CTA_PROTOINFO_TCP_WSCALE_ORIGINAL-1] &&
+ tb[CTA_PROTOINFO_TCP_WSCALE_REPLY-1] &&
+ ct->proto.tcp.seen[0].flags & IP_CT_TCP_FLAG_WINDOW_SCALE &&
+ ct->proto.tcp.seen[1].flags & IP_CT_TCP_FLAG_WINDOW_SCALE) {
+ ct->proto.tcp.seen[0].td_scale = *(u_int8_t *)
+ NFA_DATA(tb[CTA_PROTOINFO_TCP_WSCALE_ORIGINAL-1]);
+ ct->proto.tcp.seen[1].td_scale = *(u_int8_t *)
+ NFA_DATA(tb[CTA_PROTOINFO_TCP_WSCALE_REPLY-1]);
+ }
write_unlock_bh(&tcp_lock);
return 0;
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - enable working with Layer 3 protocol independent connection tracking.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_proto_udp.c
*/
#include <linux/types.h>
-/* This file contains all the functions required for the standalone
- nf_conntrack module.
-
- These are not required by the compatibility layer.
-*/
-
/* (C) 1999-2001 Paul `Rusty' Russell
* (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
- * - generalize L3 protocol dependent part.
- *
- * Derived from net/ipv4/netfilter/ip_conntrack_standalone.c
*/
#include <linux/types.h>
*
* (C) 2001 by Jay Schulist <jschlst@samba.org>,
* (C) 2002-2005 by Harald Welte <laforge@gnumonks.org>
- * (C) 2005 by Pablo Neira Ayuso <pablo@eurodev.net>
+ * (C) 2005,2007 by Pablo Neira Ayuso <pablo@netfilter.org>
*
* Initial netfilter messages via netlink development funded and
* generally made possible by Network Robots, Inc. (www.networkrobots.com)
#include <asm/uaccess.h>
#include <asm/system.h>
#include <net/sock.h>
+#include <net/netlink.h>
#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/netfilter.h>
#include <linux/netlink.h>
#include <linux/netfilter/nfnetlink.h>
static char __initdata nfversion[] = "0.30";
-#if 0
-#define DEBUGP(format, args...) \
- printk(KERN_DEBUG "%s(%d):%s(): " format, __FILE__, \
- __LINE__, __FUNCTION__, ## args)
-#else
-#define DEBUGP(format, args...)
-#endif
-
static struct sock *nfnl = NULL;
static struct nfnetlink_subsystem *subsys_table[NFNL_SUBSYS_COUNT];
-DECLARE_MUTEX(nfnl_sem);
+static DEFINE_MUTEX(nfnl_mutex);
-void nfnl_lock(void)
+static void nfnl_lock(void)
{
- nfnl_shlock();
+ mutex_lock(&nfnl_mutex);
}
-void nfnl_unlock(void)
+static int nfnl_trylock(void)
{
- nfnl_shunlock();
+ return !mutex_trylock(&nfnl_mutex);
}
-int nfnetlink_subsys_register(struct nfnetlink_subsystem *n)
+static void __nfnl_unlock(void)
{
- DEBUGP("registering subsystem ID %u\n", n->subsys_id);
+ mutex_unlock(&nfnl_mutex);
+}
+
+static void nfnl_unlock(void)
+{
+ mutex_unlock(&nfnl_mutex);
+ if (nfnl->sk_receive_queue.qlen)
+ nfnl->sk_data_ready(nfnl, 0);
+}
+int nfnetlink_subsys_register(struct nfnetlink_subsystem *n)
+{
nfnl_lock();
if (subsys_table[n->subsys_id]) {
nfnl_unlock();
return 0;
}
+EXPORT_SYMBOL_GPL(nfnetlink_subsys_register);
int nfnetlink_subsys_unregister(struct nfnetlink_subsystem *n)
{
- DEBUGP("unregistering subsystem ID %u\n", n->subsys_id);
-
nfnl_lock();
subsys_table[n->subsys_id] = NULL;
nfnl_unlock();
return 0;
}
+EXPORT_SYMBOL_GPL(nfnetlink_subsys_unregister);
static inline struct nfnetlink_subsystem *nfnetlink_get_subsys(u_int16_t type)
{
u_int8_t subsys_id = NFNL_SUBSYS_ID(type);
- if (subsys_id >= NFNL_SUBSYS_COUNT
- || subsys_table[subsys_id] == NULL)
+ if (subsys_id >= NFNL_SUBSYS_COUNT)
return NULL;
return subsys_table[subsys_id];
{
u_int8_t cb_id = NFNL_MSG_TYPE(type);
- if (cb_id >= ss->cb_count) {
- DEBUGP("msgtype %u >= %u, returning\n", type, ss->cb_count);
+ if (cb_id >= ss->cb_count)
return NULL;
- }
return &ss->cb[cb_id];
}
memcpy(NFA_DATA(nfa), data, attrlen);
memset(NFA_DATA(nfa) + attrlen, 0, NFA_ALIGN(size) - size);
}
+EXPORT_SYMBOL_GPL(__nfa_fill);
void nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
{
nfa = NFA_NEXT(nfa, len);
}
}
+EXPORT_SYMBOL_GPL(nfattr_parse);
/**
* nfnetlink_check_attributes - check and parse nfnetlink attributes
nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys,
struct nlmsghdr *nlh, struct nfattr *cda[])
{
- int min_len;
- u_int16_t attr_count;
+ int min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
u_int8_t cb_id = NFNL_MSG_TYPE(nlh->nlmsg_type);
-
- if (unlikely(cb_id >= subsys->cb_count)) {
- DEBUGP("msgtype %u >= %u, returning\n",
- cb_id, subsys->cb_count);
- return -EINVAL;
- }
-
- min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
- if (unlikely(nlh->nlmsg_len < min_len))
- return -EINVAL;
-
- attr_count = subsys->cb[cb_id].attr_count;
- memset(cda, 0, sizeof(struct nfattr *) * attr_count);
+ u_int16_t attr_count = subsys->cb[cb_id].attr_count;
/* check attribute lengths. */
if (likely(nlh->nlmsg_len > min_len)) {
struct nfattr *attr = NFM_NFA(NLMSG_DATA(nlh));
int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
-
- while (NFA_OK(attr, attrlen)) {
- unsigned flavor = NFA_TYPE(attr);
- if (flavor) {
- if (flavor > attr_count)
- return -EINVAL;
- cda[flavor - 1] = attr;
- }
- attr = NFA_NEXT(attr, attrlen);
- }
+ nfattr_parse(cda, attr_count, attr, attrlen);
}
/* implicit: if nlmsg_len == min_len, we return 0, and an empty
return err;
}
+EXPORT_SYMBOL_GPL(nfnetlink_send);
int nfnetlink_unicast(struct sk_buff *skb, u_int32_t pid, int flags)
{
return netlink_unicast(nfnl, skb, pid, flags);
}
+EXPORT_SYMBOL_GPL(nfnetlink_unicast);
/* Process one complete nfnetlink message. */
-static int nfnetlink_rcv_msg(struct sk_buff *skb,
- struct nlmsghdr *nlh, int *errp)
+static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct nfnl_callback *nc;
struct nfnetlink_subsystem *ss;
- int type, err = 0;
-
- DEBUGP("entered; subsys=%u, msgtype=%u\n",
- NFNL_SUBSYS_ID(nlh->nlmsg_type),
- NFNL_MSG_TYPE(nlh->nlmsg_type));
-
- if (security_netlink_recv(skb, CAP_NET_ADMIN)) {
- DEBUGP("missing CAP_NET_ADMIN\n");
- *errp = -EPERM;
- return -1;
- }
+ int type, err;
- /* Only requests are handled by kernel now. */
- if (!(nlh->nlmsg_flags & NLM_F_REQUEST)) {
- DEBUGP("received non-request message\n");
- return 0;
- }
+ if (security_netlink_recv(skb, CAP_NET_ADMIN))
+ return -EPERM;
/* All the messages must at least contain nfgenmsg */
- if (nlh->nlmsg_len < NLMSG_SPACE(sizeof(struct nfgenmsg))) {
- DEBUGP("received message was too short\n");
+ if (nlh->nlmsg_len < NLMSG_SPACE(sizeof(struct nfgenmsg)))
return 0;
- }
type = nlh->nlmsg_type;
ss = nfnetlink_get_subsys(type);
if (!ss) {
#ifdef CONFIG_KMOD
- /* don't call nfnl_shunlock, since it would reenter
+ /* don't call nfnl_unlock, since it would reenter
* with further packet processing */
- up(&nfnl_sem);
+ __nfnl_unlock();
request_module("nfnetlink-subsys-%d", NFNL_SUBSYS_ID(type));
- nfnl_shlock();
+ nfnl_lock();
ss = nfnetlink_get_subsys(type);
if (!ss)
#endif
- goto err_inval;
+ return -EINVAL;
}
nc = nfnetlink_find_client(type, ss);
- if (!nc) {
- DEBUGP("unable to find client for type %d\n", type);
- goto err_inval;
- }
+ if (!nc)
+ return -EINVAL;
{
u_int16_t attr_count =
err = nfnetlink_check_attributes(ss, nlh, cda);
if (err < 0)
- goto err_inval;
-
- DEBUGP("calling handler\n");
- err = nc->call(nfnl, skb, nlh, cda, errp);
- *errp = err;
- return err;
- }
-
-err_inval:
- DEBUGP("returning -EINVAL\n");
- *errp = -EINVAL;
- return -1;
-}
-
-/* Process one packet of messages. */
-static inline int nfnetlink_rcv_skb(struct sk_buff *skb)
-{
- int err;
- struct nlmsghdr *nlh;
-
- while (skb->len >= NLMSG_SPACE(0)) {
- u32 rlen;
-
- nlh = (struct nlmsghdr *)skb->data;
- if (nlh->nlmsg_len < sizeof(struct nlmsghdr)
- || skb->len < nlh->nlmsg_len)
- return 0;
- rlen = NLMSG_ALIGN(nlh->nlmsg_len);
- if (rlen > skb->len)
- rlen = skb->len;
- if (nfnetlink_rcv_msg(skb, nlh, &err)) {
- if (!err)
- return -1;
- netlink_ack(skb, nlh, err);
- } else
- if (nlh->nlmsg_flags & NLM_F_ACK)
- netlink_ack(skb, nlh, 0);
- skb_pull(skb, rlen);
+ return err;
+ return nc->call(nfnl, skb, nlh, cda);
}
-
- return 0;
}
static void nfnetlink_rcv(struct sock *sk, int len)
{
- do {
- struct sk_buff *skb;
+ unsigned int qlen = 0;
- if (nfnl_shlock_nowait())
+ do {
+ if (nfnl_trylock())
return;
-
- while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
- if (nfnetlink_rcv_skb(skb)) {
- if (skb->len)
- skb_queue_head(&sk->sk_receive_queue,
- skb);
- else
- kfree_skb(skb);
- break;
- }
- kfree_skb(skb);
- }
-
- /* don't call nfnl_shunlock, since it would reenter
- * with further packet processing */
- up(&nfnl_sem);
- } while(nfnl && nfnl->sk_receive_queue.qlen);
+ netlink_run_queue(sk, &qlen, nfnetlink_rcv_msg);
+ __nfnl_unlock();
+ } while (qlen);
}
static void __exit nfnetlink_exit(void)
printk("Netfilter messages via NETLINK v%s.\n", nfversion);
nfnl = netlink_kernel_create(NETLINK_NETFILTER, NFNLGRP_MAX,
- nfnetlink_rcv, THIS_MODULE);
+ nfnetlink_rcv, NULL, THIS_MODULE);
if (!nfnl) {
printk(KERN_ERR "cannot initialize nfnetlink!\n");
return -1;
module_init(nfnetlink_init);
module_exit(nfnetlink_exit);
-
-EXPORT_SYMBOL_GPL(nfnetlink_subsys_register);
-EXPORT_SYMBOL_GPL(nfnetlink_subsys_unregister);
-EXPORT_SYMBOL_GPL(nfnetlink_send);
-EXPORT_SYMBOL_GPL(nfnetlink_unicast);
-EXPORT_SYMBOL_GPL(nfattr_parse);
-EXPORT_SYMBOL_GPL(__nfa_fill);
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 2006-01-26 Harald Welte <laforge@netfilter.org>
- * - Add optional local and global sequence number to detect lost
- * events from userspace
- *
*/
#include <linux/module.h>
#include <linux/skbuff.h>
/* needs to be two, since we _put() after creation */
atomic_set(&inst->use, 2);
- init_timer(&inst->timer);
- inst->timer.function = nfulnl_timer;
- inst->timer.data = (unsigned long)inst;
- /* don't start timer yet. (re)start it with every packet */
+ setup_timer(&inst->timer, nfulnl_timer, (unsigned long)inst);
inst->peer_pid = pid;
inst->group_num = group_num;
static int __nfulnl_send(struct nfulnl_instance *inst);
static void
-_instance_destroy2(struct nfulnl_instance *inst, int lock)
+__instance_destroy(struct nfulnl_instance *inst)
{
/* first pull it out of the global list */
- if (lock)
- write_lock_bh(&instances_lock);
-
UDEBUG("removing instance %p (queuenum=%u) from hash\n",
inst, inst->group_num);
hlist_del(&inst->hlist);
- if (lock)
- write_unlock_bh(&instances_lock);
-
/* then flush all pending packets from skb */
spin_lock_bh(&inst->lock);
instance_put(inst);
}
-static inline void
-__instance_destroy(struct nfulnl_instance *inst)
-{
- _instance_destroy2(inst, 0);
-}
-
static inline void
instance_destroy(struct nfulnl_instance *inst)
{
- _instance_destroy2(inst, 1);
+ write_lock_bh(&instances_lock);
+ __instance_destroy(inst);
+ write_unlock_bh(&instances_lock);
}
static int
{
int status;
- if (!inst->skb)
- return 0;
-
if (inst->qlen > 1)
inst->lastnlh->nlmsg_type = NLMSG_DONE;
UDEBUG("timer function called, flushing buffer\n");
spin_lock_bh(&inst->lock);
- __nfulnl_send(inst);
+ if (inst->skb)
+ __nfulnl_send(inst);
spin_unlock_bh(&inst->lock);
instance_put(inst);
}
const struct nf_loginfo *li,
const char *prefix, unsigned int plen)
{
- unsigned char *old_tail;
struct nfulnl_msg_packet_hdr pmsg;
struct nlmsghdr *nlh;
struct nfgenmsg *nfmsg;
__be32 tmp_uint;
+ sk_buff_data_t old_tail = inst->skb->tail;
UDEBUG("entered\n");
- old_tail = inst->skb->tail;
nlh = NLMSG_PUT(inst->skb, 0, 0,
NFNL_SUBSYS_ULOG << 8 | NFULNL_MSG_PACKET,
sizeof(struct nfgenmsg));
NFA_PUT(inst->skb, NFULA_HWADDR, sizeof(phw), &phw);
}
- if (skb->tstamp.off_sec) {
+ if (skb->tstamp.tv64) {
struct nfulnl_msg_packet_timestamp ts;
-
- ts.sec = cpu_to_be64(skb->tstamp.off_sec);
- ts.usec = cpu_to_be64(skb->tstamp.off_usec);
+ struct timeval tv = ktime_to_timeval(skb->tstamp);
+ ts.sec = cpu_to_be64(tv.tv_sec);
+ ts.usec = cpu_to_be64(tv.tv_usec);
NFA_PUT(inst->skb, NFULA_TIMESTAMP, sizeof(ts), &ts);
}
struct nfulnl_instance *inst;
const struct nf_loginfo *li;
unsigned int qthreshold;
- unsigned int nlbufsiz;
unsigned int plen;
if (li_user && li_user->type == NF_LOG_TYPE_ULOG)
inst = instance_lookup_get(li->u.ulog.group);
if (!inst)
- inst = instance_lookup_get(0);
- if (!inst) {
- PRINTR("nfnetlink_log: trying to log packet, "
- "but no instance for group %u\n", li->u.ulog.group);
return;
- }
plen = 0;
if (prefix)
break;
default:
- spin_unlock_bh(&inst->lock);
- instance_put(inst);
- return;
+ goto unlock_and_release;
}
- if (size > inst->nlbufsiz)
- nlbufsiz = size;
- else
- nlbufsiz = inst->nlbufsiz;
-
- if (!inst->skb) {
- if (!(inst->skb = nfulnl_alloc_skb(nlbufsiz, size))) {
- UDEBUG("error in nfulnl_alloc_skb(%u, %u)\n",
- inst->nlbufsiz, size);
- goto alloc_failure;
- }
- } else if (inst->qlen >= qthreshold ||
- size > skb_tailroom(inst->skb)) {
+ if (inst->qlen >= qthreshold ||
+ (inst->skb && size > skb_tailroom(inst->skb))) {
/* either the queue len is too high or we don't have
* enough room in the skb left. flush to userspace. */
UDEBUG("flushing old skb\n");
if (del_timer(&inst->timer))
instance_put(inst);
__nfulnl_send(inst);
+ }
- if (!(inst->skb = nfulnl_alloc_skb(nlbufsiz, size))) {
- UDEBUG("error in nfulnl_alloc_skb(%u, %u)\n",
- inst->nlbufsiz, size);
+ if (!inst->skb) {
+ inst->skb = nfulnl_alloc_skb(inst->nlbufsiz, size);
+ if (!inst->skb)
goto alloc_failure;
- }
}
UDEBUG("qlen %d, qthreshold %d\n", inst->qlen, qthreshold);
static int
nfulnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *nfqa[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *nfqa[])
{
return -ENOTSUPP;
}
static int
nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *nfula[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *nfula[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t group_num = ntohs(nfmsg->res_id);
NETLINK_CB(skb).pid);
if (!inst) {
ret = -EINVAL;
- goto out_put;
+ goto out;
}
break;
case NFULNL_CFG_CMD_UNBIND:
if (!inst) {
ret = -ENODEV;
- goto out_put;
+ goto out;
}
if (inst->peer_pid != NETLINK_CB(skb).pid) {
}
instance_destroy(inst);
- break;
+ goto out;
case NFULNL_CFG_CMD_PF_BIND:
UDEBUG("registering log handler for pf=%u\n", pf);
ret = nf_log_register(pf, &nfulnl_logger);
"group=%u pid=%u =>ENOENT\n",
group_num, NETLINK_CB(skb).pid);
ret = -ENOENT;
- goto out_put;
+ goto out;
}
if (inst->peer_pid != NETLINK_CB(skb).pid) {
unsigned int bucket;
};
-static struct hlist_node *get_first(struct seq_file *seq)
+static struct hlist_node *get_first(struct iter_state *st)
{
- struct iter_state *st = seq->private;
-
if (!st)
return NULL;
return NULL;
}
-static struct hlist_node *get_next(struct seq_file *seq, struct hlist_node *h)
+static struct hlist_node *get_next(struct iter_state *st, struct hlist_node *h)
{
- struct iter_state *st = seq->private;
-
h = h->next;
while (!h) {
if (++st->bucket >= INSTANCE_BUCKETS)
return h;
}
-static struct hlist_node *get_idx(struct seq_file *seq, loff_t pos)
+static struct hlist_node *get_idx(struct iter_state *st, loff_t pos)
{
struct hlist_node *head;
- head = get_first(seq);
+ head = get_first(st);
if (head)
- while (pos && (head = get_next(seq, head)))
+ while (pos && (head = get_next(st, head)))
pos--;
return pos ? NULL : head;
}
static void *seq_start(struct seq_file *seq, loff_t *pos)
{
read_lock_bh(&instances_lock);
- return get_idx(seq, *pos);
+ return get_idx(seq->private, *pos);
}
static void *seq_next(struct seq_file *s, void *v, loff_t *pos)
{
(*pos)++;
- return get_next(s, v);
+ return get_next(s->private, v);
}
static void seq_stop(struct seq_file *s, void *v)
nfqnl_build_packet_message(struct nfqnl_instance *queue,
struct nfqnl_queue_entry *entry, int *errp)
{
- unsigned char *old_tail;
+ sk_buff_data_t old_tail;
size_t size;
size_t data_len = 0;
struct sk_buff *skb;
if (!skb)
goto nlmsg_failure;
- old_tail= skb->tail;
+ old_tail = skb->tail;
nlh = NLMSG_PUT(skb, 0, 0,
NFNL_SUBSYS_QUEUE << 8 | NFQNL_MSG_PACKET,
sizeof(struct nfgenmsg));
NFA_PUT(skb, NFQA_HWADDR, sizeof(phw), &phw);
}
- if (entskb->tstamp.off_sec) {
+ if (entskb->tstamp.tv64) {
struct nfqnl_msg_packet_timestamp ts;
-
- ts.sec = cpu_to_be64(entskb->tstamp.off_sec);
- ts.usec = cpu_to_be64(entskb->tstamp.off_usec);
+ struct timeval tv = ktime_to_timeval(entskb->tstamp);
+ ts.sec = cpu_to_be64(tv.tv_sec);
+ ts.usec = cpu_to_be64(tv.tv_usec);
NFA_PUT(skb, NFQA_TIMESTAMP, sizeof(ts), &ts);
}
}
if (!skb_make_writable(&e->skb, data_len))
return -ENOMEM;
- memcpy(e->skb->data, data, data_len);
+ skb_copy_to_linear_data(e->skb, data, data_len);
e->skb->ip_summed = CHECKSUM_NONE;
return 0;
}
static int
nfqnl_recv_verdict(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *nfqa[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *nfqa[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);
static int
nfqnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *nfqa[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *nfqa[])
{
return -ENOTSUPP;
}
static int
nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct nfattr *nfqa[], int *errp)
+ struct nlmsghdr *nlh, struct nfattr *nfqa[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);
};
static const char *xt_prefix[NPROTO] = {
- [AF_INET] = "ip",
- [AF_INET6] = "ip6",
+ [AF_INET] = "ip",
+ [AF_INET6] = "ip6",
[NF_ARP] = "arp",
};
EXPORT_SYMBOL_GPL(xt_unregister_table);
#ifdef CONFIG_PROC_FS
-static char *xt_proto_prefix[NPROTO] = {
- [AF_INET] = "ip",
- [AF_INET6] = "ip6",
- [NF_ARP] = "arp",
-};
-
static struct list_head *xt_get_idx(struct list_head *list, struct seq_file *seq, loff_t pos)
{
struct list_head *head = list->next;
#ifdef CONFIG_PROC_FS
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
proc = proc_net_fops_create(buf, 0440, &xt_file_ops);
if (!proc)
proc->data = (void *) ((unsigned long) af | (TABLE << 16));
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_MATCHES, sizeof(buf));
proc = proc_net_fops_create(buf, 0440, &xt_file_ops);
if (!proc)
goto out_remove_tables;
proc->data = (void *) ((unsigned long) af | (MATCH << 16));
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TARGETS, sizeof(buf));
proc = proc_net_fops_create(buf, 0440, &xt_file_ops);
if (!proc)
#ifdef CONFIG_PROC_FS
out_remove_matches:
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_MATCHES, sizeof(buf));
proc_net_remove(buf);
out_remove_tables:
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
proc_net_remove(buf);
out:
#ifdef CONFIG_PROC_FS
char buf[XT_FUNCTION_MAXNAMELEN];
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
proc_net_remove(buf);
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TARGETS, sizeof(buf));
proc_net_remove(buf);
- strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+ strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_MATCHES, sizeof(buf));
proc_net_remove(buf);
#endif /*CONFIG_PROC_FS*/
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_CONNMARK.h>
-#include <net/netfilter/nf_conntrack_compat.h>
-#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
#include <net/netfilter/nf_conntrack_ecache.h>
-#endif
static unsigned int
target(struct sk_buff **pskb,
const void *targinfo)
{
const struct xt_connmark_target_info *markinfo = targinfo;
+ struct nf_conn *ct;
+ enum ip_conntrack_info ctinfo;
u_int32_t diff;
u_int32_t mark;
u_int32_t newmark;
- u_int32_t ctinfo;
- u_int32_t *ctmark = nf_ct_get_mark(*pskb, &ctinfo);
- if (ctmark) {
+ ct = nf_ct_get(*pskb, &ctinfo);
+ if (ct) {
switch(markinfo->mode) {
case XT_CONNMARK_SET:
- newmark = (*ctmark & ~markinfo->mask) | markinfo->mark;
- if (newmark != *ctmark) {
- *ctmark = newmark;
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
- ip_conntrack_event_cache(IPCT_MARK, *pskb);
-#else
+ newmark = (ct->mark & ~markinfo->mask) | markinfo->mark;
+ if (newmark != ct->mark) {
+ ct->mark = newmark;
nf_conntrack_event_cache(IPCT_MARK, *pskb);
-#endif
}
break;
case XT_CONNMARK_SAVE:
- newmark = (*ctmark & ~markinfo->mask) |
+ newmark = (ct->mark & ~markinfo->mask) |
((*pskb)->mark & markinfo->mask);
- if (*ctmark != newmark) {
- *ctmark = newmark;
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
- ip_conntrack_event_cache(IPCT_MARK, *pskb);
-#else
+ if (ct->mark != newmark) {
+ ct->mark = newmark;
nf_conntrack_event_cache(IPCT_MARK, *pskb);
-#endif
}
break;
case XT_CONNMARK_RESTORE:
mark = (*pskb)->mark;
- diff = (*ctmark ^ mark) & markinfo->mask;
+ diff = (ct->mark ^ mark) & markinfo->mask;
(*pskb)->mark = mark ^ diff;
break;
}
#include <linux/skbuff.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_CONNSECMARK.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
#define PFX "CONNSECMARK: "
static void secmark_save(struct sk_buff *skb)
{
if (skb->secmark) {
- u32 *connsecmark;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
- connsecmark = nf_ct_get_secmark(skb, &ctinfo);
- if (connsecmark && !*connsecmark)
- *connsecmark = skb->secmark;
+ ct = nf_ct_get(skb, &ctinfo);
+ if (ct && !ct->secmark)
+ ct->secmark = skb->secmark;
}
}
static void secmark_restore(struct sk_buff *skb)
{
if (!skb->secmark) {
- u32 *connsecmark;
+ struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
- connsecmark = nf_ct_get_secmark(skb, &ctinfo);
- if (connsecmark && *connsecmark)
- skb->secmark = *connsecmark;
+ ct = nf_ct_get(skb, &ctinfo);
+ if (ct && ct->secmark)
+ skb->secmark = ct->secmark;
}
}
* published by the Free Software Foundation.
*
* See RFC2474 for a description of the DSCP field within the IP Header.
- *
- * xt_DSCP.c,v 1.8 2002/08/06 18:41:57 laforge Exp
*/
#include <linux/module.h>
const void *targinfo)
{
const struct xt_DSCP_info *dinfo = targinfo;
- u_int8_t dscp = ipv4_get_dsfield((*pskb)->nh.iph) >> XT_DSCP_SHIFT;
+ u_int8_t dscp = ipv4_get_dsfield(ip_hdr(*pskb)) >> XT_DSCP_SHIFT;
if (dscp != dinfo->dscp) {
if (!skb_make_writable(pskb, sizeof(struct iphdr)))
return NF_DROP;
- ipv4_change_dsfield((*pskb)->nh.iph, (__u8)(~XT_DSCP_MASK),
+ ipv4_change_dsfield(ip_hdr(*pskb), (__u8)(~XT_DSCP_MASK),
dinfo->dscp << XT_DSCP_SHIFT);
}
const void *targinfo)
{
const struct xt_DSCP_info *dinfo = targinfo;
- u_int8_t dscp = ipv6_get_dsfield((*pskb)->nh.ipv6h) >> XT_DSCP_SHIFT;
+ u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(*pskb)) >> XT_DSCP_SHIFT;
if (dscp != dinfo->dscp) {
if (!skb_make_writable(pskb, sizeof(struct ipv6hdr)))
return NF_DROP;
- ipv6_change_dsfield((*pskb)->nh.ipv6h, (__u8)(~XT_DSCP_MASK),
+ ipv6_change_dsfield(ipv6_hdr(*pskb), (__u8)(~XT_DSCP_MASK),
dinfo->dscp << XT_DSCP_SHIFT);
}
return XT_CONTINUE;
#include <linux/skbuff.h>
#include <linux/netfilter/x_tables.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_NOTRACK");
If there is a real ct entry correspondig to this packet,
it'll hang aroun till timing out. We don't deal with it
for performance reasons. JK */
- nf_ct_untrack(*pskb);
+ (*pskb)->nfct = &nf_conntrack_untracked.ct_general;
(*pskb)->nfctinfo = IP_CT_NEW;
nf_conntrack_get((*pskb)->nfct);
return -1;
tcplen = (*pskb)->len - tcphoff;
- tcph = (struct tcphdr *)((*pskb)->nh.raw + tcphoff);
+ tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff);
/* Since it passed flags test in tcp match, we know it is is
not a fragment, and has data >= tcp header length. SYN
return -1;
kfree_skb(*pskb);
*pskb = newskb;
- tcph = (struct tcphdr *)((*pskb)->nh.raw + tcphoff);
+ tcph = (struct tcphdr *)(skb_network_header(*pskb) + tcphoff);
}
skb_put((*pskb), TCPOLEN_MSS);
const struct xt_target *target,
const void *targinfo)
{
- struct iphdr *iph = (*pskb)->nh.iph;
+ struct iphdr *iph = ip_hdr(*pskb);
__be16 newlen;
int ret;
if (ret < 0)
return NF_DROP;
if (ret > 0) {
- iph = (*pskb)->nh.iph;
+ iph = ip_hdr(*pskb);
newlen = htons(ntohs(iph->tot_len) + ret);
nf_csum_replace2(&iph->check, iph->tot_len, newlen);
iph->tot_len = newlen;
const struct xt_target *target,
const void *targinfo)
{
- struct ipv6hdr *ipv6h = (*pskb)->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(*pskb);
u8 nexthdr;
int tcphoff;
int ret;
if (ret < 0)
return NF_DROP;
if (ret > 0) {
- ipv6h = (*pskb)->nh.ipv6h;
+ ipv6h = ipv6_hdr(*pskb);
ipv6h->payload_len = htons(ntohs(ipv6h->payload_len) + ret);
}
return XT_CONTINUE;
/* Kernel module to match connection tracking byte counter.
* GPL (C) 2002 Martin Devera (devik@cdi.cz).
- *
- * 2004-07-20 Harald Welte <laforge@netfilter.org>
- * - reimplemented to use per-connection accounting counters
- * - add functionality to match number of packets
- * - add functionality to match average packet size
- * - add support to match directions seperately
- * 2005-10-16 Harald Welte <laforge@netfilter.org>
- * - Port to x_tables
- *
*/
#include <linux/module.h>
#include <linux/skbuff.h>
-#include <net/netfilter/nf_conntrack_compat.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_connbytes.h>
+#include <net/netfilter/nf_conntrack.h>
#include <asm/div64.h>
#include <asm/bitops.h>
MODULE_DESCRIPTION("iptables match for matching number of pkts/bytes per connection");
MODULE_ALIAS("ipt_connbytes");
-/* 64bit divisor, dividend and result. dynamic precision */
-static u_int64_t div64_64(u_int64_t dividend, u_int64_t divisor)
-{
- u_int32_t d = divisor;
-
- if (divisor > 0xffffffffULL) {
- unsigned int shift = fls(divisor >> 32);
-
- d = divisor >> shift;
- dividend >>= shift;
- }
-
- do_div(dividend, d);
- return dividend;
-}
-
static int
match(const struct sk_buff *skb,
const struct net_device *in,
int *hotdrop)
{
const struct xt_connbytes_info *sinfo = matchinfo;
+ struct nf_conn *ct;
+ enum ip_conntrack_info ctinfo;
u_int64_t what = 0; /* initialize to make gcc happy */
u_int64_t bytes = 0;
u_int64_t pkts = 0;
const struct ip_conntrack_counter *counters;
- if (!(counters = nf_ct_get_counters(skb)))
- return 0; /* no match */
+ ct = nf_ct_get(skb, &ctinfo);
+ if (!ct)
+ return 0;
+ counters = ct->counters;
switch (sinfo->what) {
case XT_CONNBYTES_PKTS:
#include <linux/module.h>
#include <linux/skbuff.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_connmark.h>
MODULE_AUTHOR("Henrik Nordstrom <hno@marasytems.com>");
MODULE_DESCRIPTION("IP tables connmark match module");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_connmark");
-#include <linux/netfilter/x_tables.h>
-#include <linux/netfilter/xt_connmark.h>
-#include <net/netfilter/nf_conntrack_compat.h>
-
static int
match(const struct sk_buff *skb,
const struct net_device *in,
int *hotdrop)
{
const struct xt_connmark_info *info = matchinfo;
- u_int32_t ctinfo;
- const u_int32_t *ctmark = nf_ct_get_mark(skb, &ctinfo);
- if (!ctmark)
+ struct nf_conn *ct;
+ enum ip_conntrack_info ctinfo;
+
+ ct = nf_ct_get(skb, &ctinfo);
+ if (!ct)
return 0;
- return (((*ctmark) & info->mask) == info->mark) ^ info->invert;
+ return (((ct->mark) & info->mask) == info->mark) ^ info->invert;
}
static int
#include <linux/module.h>
#include <linux/skbuff.h>
-
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
-#else
-#include <net/netfilter/nf_conntrack.h>
-#endif
-
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_conntrack.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
MODULE_DESCRIPTION("iptables connection tracking match module");
MODULE_ALIAS("ipt_conntrack");
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-
-static int
-match(const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct xt_match *match,
- const void *matchinfo,
- int offset,
- unsigned int protoff,
- int *hotdrop)
-{
- const struct xt_conntrack_info *sinfo = matchinfo;
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- unsigned int statebit;
-
- ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
-
-#define FWINV(bool, invflg) ((bool) ^ !!(sinfo->invflags & invflg))
-
- if (ct == &ip_conntrack_untracked)
- statebit = XT_CONNTRACK_STATE_UNTRACKED;
- else if (ct)
- statebit = XT_CONNTRACK_STATE_BIT(ctinfo);
- else
- statebit = XT_CONNTRACK_STATE_INVALID;
-
- if (sinfo->flags & XT_CONNTRACK_STATE) {
- if (ct) {
- if (test_bit(IPS_SRC_NAT_BIT, &ct->status))
- statebit |= XT_CONNTRACK_STATE_SNAT;
- if (test_bit(IPS_DST_NAT_BIT, &ct->status))
- statebit |= XT_CONNTRACK_STATE_DNAT;
- }
- if (FWINV((statebit & sinfo->statemask) == 0,
- XT_CONNTRACK_STATE))
- return 0;
- }
-
- if (ct == NULL) {
- if (sinfo->flags & ~XT_CONNTRACK_STATE)
- return 0;
- return 1;
- }
-
- if (sinfo->flags & XT_CONNTRACK_PROTO &&
- FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum !=
- sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum,
- XT_CONNTRACK_PROTO))
- return 0;
-
- if (sinfo->flags & XT_CONNTRACK_ORIGSRC &&
- FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip &
- sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) !=
- sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip,
- XT_CONNTRACK_ORIGSRC))
- return 0;
-
- if (sinfo->flags & XT_CONNTRACK_ORIGDST &&
- FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip &
- sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) !=
- sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip,
- XT_CONNTRACK_ORIGDST))
- return 0;
-
- if (sinfo->flags & XT_CONNTRACK_REPLSRC &&
- FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip &
- sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) !=
- sinfo->tuple[IP_CT_DIR_REPLY].src.ip,
- XT_CONNTRACK_REPLSRC))
- return 0;
-
- if (sinfo->flags & XT_CONNTRACK_REPLDST &&
- FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip &
- sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) !=
- sinfo->tuple[IP_CT_DIR_REPLY].dst.ip,
- XT_CONNTRACK_REPLDST))
- return 0;
-
- if (sinfo->flags & XT_CONNTRACK_STATUS &&
- FWINV((ct->status & sinfo->statusmask) == 0,
- XT_CONNTRACK_STATUS))
- return 0;
-
- if (sinfo->flags & XT_CONNTRACK_EXPIRES) {
- unsigned long expires = timer_pending(&ct->timeout) ?
- (ct->timeout.expires - jiffies)/HZ : 0;
-
- if (FWINV(!(expires >= sinfo->expires_min &&
- expires <= sinfo->expires_max),
- XT_CONNTRACK_EXPIRES))
- return 0;
- }
- return 1;
-}
-
-#else /* CONFIG_IP_NF_CONNTRACK */
static int
match(const struct sk_buff *skb,
const struct net_device *in,
return 1;
}
-#endif /* CONFIG_NF_IP_CONNTRACK */
-
static int
checkentry(const char *tablename,
const void *ip,
/* IP tables module for matching the value of the IPv4/IPv6 DSCP field
- *
- * xt_dscp.c,v 1.3 2002/08/05 19:00:21 laforge Exp
*
* (C) 2002 by Harald Welte <laforge@netfilter.org>
*
int *hotdrop)
{
const struct xt_dscp_info *info = matchinfo;
- u_int8_t dscp = ipv4_get_dsfield(skb->nh.iph) >> XT_DSCP_SHIFT;
+ u_int8_t dscp = ipv4_get_dsfield(ip_hdr(skb)) >> XT_DSCP_SHIFT;
return (dscp == info->dscp) ^ !!info->invert;
}
int *hotdrop)
{
const struct xt_dscp_info *info = matchinfo;
- u_int8_t dscp = ipv6_get_dsfield(skb->nh.ipv6h) >> XT_DSCP_SHIFT;
+ u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> XT_DSCP_SHIFT;
return (dscp == info->dscp) ^ !!info->invert;
}
hinfo->pde->proc_fops = &dl_file_ops;
hinfo->pde->data = hinfo;
- init_timer(&hinfo->timer);
+ setup_timer(&hinfo->timer, htable_gc, (unsigned long )hinfo);
hinfo->timer.expires = jiffies + msecs_to_jiffies(hinfo->cfg.gc_interval);
- hinfo->timer.data = (unsigned long )hinfo;
- hinfo->timer.function = htable_gc;
add_timer(&hinfo->timer);
spin_lock_bh(&hashlimit_lock);
switch (hinfo->family) {
case AF_INET:
if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_DIP)
- dst->addr.ip.dst = skb->nh.iph->daddr;
+ dst->addr.ip.dst = ip_hdr(skb)->daddr;
if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_SIP)
- dst->addr.ip.src = skb->nh.iph->saddr;
+ dst->addr.ip.src = ip_hdr(skb)->saddr;
if (!(hinfo->cfg.mode &
(XT_HASHLIMIT_HASH_DPT | XT_HASHLIMIT_HASH_SPT)))
return 0;
- nexthdr = skb->nh.iph->protocol;
+ nexthdr = ip_hdr(skb)->protocol;
break;
#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
case AF_INET6:
if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_DIP)
- memcpy(&dst->addr.ip6.dst, &skb->nh.ipv6h->daddr,
+ memcpy(&dst->addr.ip6.dst, &ipv6_hdr(skb)->daddr,
sizeof(dst->addr.ip6.dst));
if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_SIP)
- memcpy(&dst->addr.ip6.src, &skb->nh.ipv6h->saddr,
+ memcpy(&dst->addr.ip6.src, &ipv6_hdr(skb)->saddr,
sizeof(dst->addr.ip6.src));
if (!(hinfo->cfg.mode &
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * 19 Mar 2002 Harald Welte <laforge@gnumonks.org>:
- * - Port to newnat infrastructure
*/
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/netfilter.h>
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-#include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-#else
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_helper.h>
-#endif
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_helper.h>
-#include <net/netfilter/nf_conntrack_compat.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Martin Josefsson <gandalf@netfilter.org>");
#define DEBUGP(format, args...)
#endif
-#if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
-static int
-match(const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- const struct xt_match *match,
- const void *matchinfo,
- int offset,
- unsigned int protoff,
- int *hotdrop)
-{
- const struct xt_helper_info *info = matchinfo;
- struct ip_conntrack *ct;
- enum ip_conntrack_info ctinfo;
- int ret = info->invert;
-
- ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
- if (!ct) {
- DEBUGP("xt_helper: Eek! invalid conntrack?\n");
- return ret;
- }
-
- if (!ct->master) {
- DEBUGP("xt_helper: conntrack %p has no master\n", ct);
- return ret;
- }
-
- read_lock_bh(&ip_conntrack_lock);
- if (!ct->master->helper) {
- DEBUGP("xt_helper: master ct %p has no helper\n",
- exp->expectant);
- goto out_unlock;
- }
-
- DEBUGP("master's name = %s , info->name = %s\n",
- ct->master->helper->name, info->name);
-
- if (info->name[0] == '\0')
- ret ^= 1;
- else
- ret ^= !strncmp(ct->master->helper->name, info->name,
- strlen(ct->master->helper->name));
-out_unlock:
- read_unlock_bh(&ip_conntrack_lock);
- return ret;
-}
-
-#else /* CONFIG_IP_NF_CONNTRACK */
-
static int
match(const struct sk_buff *skb,
const struct net_device *in,
read_unlock_bh(&nf_conntrack_lock);
return ret;
}
-#endif
static int check(const char *tablename,
const void *inf,
int *hotdrop)
{
const struct xt_length_info *info = matchinfo;
- u_int16_t pktlen = ntohs(skb->nh.iph->tot_len);
+ u_int16_t pktlen = ntohs(ip_hdr(skb)->tot_len);
return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
}
int *hotdrop)
{
const struct xt_length_info *info = matchinfo;
- u_int16_t pktlen = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
+ const u_int16_t pktlen = (ntohs(ipv6_hdr(skb)->payload_len) +
+ sizeof(struct ipv6hdr));
return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
}
-/* Kernel module to control the rate
- *
- * 2 September 1999: Changed from the target RATE to the match
- * `limit', removed logging. Did I mention that
- * Alexey is a fucking genius?
- * Rusty Russell (rusty@rustcorp.com.au). */
-
/* (C) 1999 Jérôme de Vivie <devivie@info.enserb.u-bordeaux.fr>
* (C) 1999 Hervé Eychenne <eychenne@info.enserb.u-bordeaux.fr>
*
const struct xt_mac_info *info = matchinfo;
/* Is mac pointer valid? */
- return (skb->mac.raw >= skb->head
- && (skb->mac.raw + ETH_HLEN) <= skb->data
+ return (skb_mac_header(skb) >= skb->head &&
+ (skb_mac_header(skb) + ETH_HLEN) <= skb->data
/* If so, compare... */
&& ((!compare_ether_addr(eth_hdr(skb)->h_source, info->srcaddr))
^ info->invert));
const struct xt_pkttype_info *info = matchinfo;
if (skb->pkt_type == PACKET_LOOPBACK)
- type = (MULTICAST(skb->nh.iph->daddr)
+ type = (MULTICAST(ip_hdr(skb)->daddr)
? PACKET_MULTICAST
: PACKET_BROADCAST);
else
/* IP tables module for matching the routing realm
- *
- * $Id: ipt_realm.c,v 1.3 2004/03/05 13:25:40 laforge Exp $
*
* (C) 2003 by Sampsa Ranta <sampsa@netsonic.fi>
*
#include <linux/module.h>
#include <linux/skbuff.h>
-#include <net/netfilter/nf_conntrack_compat.h>
+#include <net/netfilter/nf_conntrack.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_state.h>
if (nf_ct_is_untracked(skb))
statebit = XT_STATE_UNTRACKED;
- else if (!nf_ct_get_ctinfo(skb, &ctinfo))
+ else if (!nf_ct_get(skb, &ctinfo))
statebit = XT_STATE_INVALID;
else
statebit = XT_STATE_BIT(ctinfo);
#include <linux/types.h>
#include <linux/audit.h>
#include <linux/selinux.h>
+#include <linux/mutex.h>
#include <net/sock.h>
#include <net/scm.h>
unsigned long state;
wait_queue_head_t wait;
struct netlink_callback *cb;
- spinlock_t cb_lock;
+ struct mutex *cb_mutex;
+ struct mutex cb_def_mutex;
void (*data_ready)(struct sock *sk, int bytes);
struct module *module;
};
unsigned long *listeners;
unsigned int nl_nonroot;
unsigned int groups;
+ struct mutex *cb_mutex;
struct module *module;
int registered;
};
static int netlink_dump(struct sock *sk);
static void netlink_destroy_callback(struct netlink_callback *cb);
+static void netlink_queue_skip(struct nlmsghdr *nlh, struct sk_buff *skb);
static DEFINE_RWLOCK(nl_table_lock);
static atomic_t nl_table_users = ATOMIC_INIT(0);
.obj_size = sizeof(struct netlink_sock),
};
-static int __netlink_create(struct socket *sock, int protocol)
+static int __netlink_create(struct socket *sock, struct mutex *cb_mutex,
+ int protocol)
{
struct sock *sk;
struct netlink_sock *nlk;
sock_init_data(sock, sk);
nlk = nlk_sk(sk);
- spin_lock_init(&nlk->cb_lock);
+ if (cb_mutex)
+ nlk->cb_mutex = cb_mutex;
+ else {
+ nlk->cb_mutex = &nlk->cb_def_mutex;
+ mutex_init(nlk->cb_mutex);
+ }
init_waitqueue_head(&nlk->wait);
sk->sk_destruct = netlink_sock_destruct;
static int netlink_create(struct socket *sock, int protocol)
{
struct module *module = NULL;
+ struct mutex *cb_mutex;
struct netlink_sock *nlk;
- unsigned int groups;
int err = 0;
sock->state = SS_UNCONNECTED;
if (nl_table[protocol].registered &&
try_module_get(nl_table[protocol].module))
module = nl_table[protocol].module;
- groups = nl_table[protocol].groups;
+ cb_mutex = nl_table[protocol].cb_mutex;
netlink_unlock_table();
- if ((err = __netlink_create(sock, protocol)) < 0)
+ if ((err = __netlink_create(sock, cb_mutex, protocol)) < 0)
goto out_module;
nlk = nlk_sk(sock->sk);
return 0;
netlink_remove(sk);
+ sock_orphan(sk);
nlk = nlk_sk(sk);
- spin_lock(&nlk->cb_lock);
+ mutex_lock(nlk->cb_mutex);
if (nlk->cb) {
if (nlk->cb->done)
nlk->cb->done(nlk->cb);
netlink_destroy_callback(nlk->cb);
nlk->cb = NULL;
}
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
/* OK. Socket is unlinked, and, therefore,
no new packets will arrive */
- sock_orphan(sk);
sock->sk = NULL;
wake_up_interruptible_all(&nlk->wait);
copied = len;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
if (msg->msg_name) {
scm_recv(sock, msg, siocb->scm, flags);
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+
out:
netlink_rcv_wake(sk);
return err ? : copied;
struct sock *
netlink_kernel_create(int unit, unsigned int groups,
void (*input)(struct sock *sk, int len),
- struct module *module)
+ struct mutex *cb_mutex, struct module *module)
{
struct socket *sock;
struct sock *sk;
if (sock_create_lite(PF_NETLINK, SOCK_DGRAM, unit, &sock))
return NULL;
- if (__netlink_create(sock, unit) < 0)
+ if (__netlink_create(sock, cb_mutex, unit) < 0)
goto out_sock_release;
if (groups < 32)
netlink_table_grab();
nl_table[unit].groups = groups;
nl_table[unit].listeners = listeners;
+ nl_table[unit].cb_mutex = cb_mutex;
nl_table[unit].module = module;
nl_table[unit].registered = 1;
netlink_table_ungrab();
if (!skb)
goto errout;
- spin_lock(&nlk->cb_lock);
+ mutex_lock(nlk->cb_mutex);
cb = nlk->cb;
if (cb == NULL) {
len = cb->dump(skb, cb);
if (len > 0) {
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
skb_queue_tail(&sk->sk_receive_queue, skb);
sk->sk_data_ready(sk, len);
return 0;
if (cb->done)
cb->done(cb);
nlk->cb = NULL;
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
netlink_destroy_callback(cb);
return 0;
errout_skb:
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
kfree_skb(skb);
errout:
return err;
return -ECONNREFUSED;
}
nlk = nlk_sk(sk);
- /* A dump is in progress... */
- spin_lock(&nlk->cb_lock);
- if (nlk->cb) {
- spin_unlock(&nlk->cb_lock);
+ /* A dump or destruction is in progress... */
+ mutex_lock(nlk->cb_mutex);
+ if (nlk->cb || sock_flag(sk, SOCK_DEAD)) {
+ mutex_unlock(nlk->cb_mutex);
netlink_destroy_callback(cb);
sock_put(sk);
return -EBUSY;
}
nlk->cb = cb;
- spin_unlock(&nlk->cb_lock);
+ mutex_unlock(nlk->cb_mutex);
netlink_dump(sk);
sock_put(sk);
- return 0;
+
+ /* We successfully started a dump, by returning -EINTR we
+ * signal the queue mangement to interrupt processing of
+ * any netlink messages so userspace gets a chance to read
+ * the results. */
+ return -EINTR;
}
void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)
}
static int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
- struct nlmsghdr *, int *))
+ struct nlmsghdr *))
{
struct nlmsghdr *nlh;
int err;
while (skb->len >= nlmsg_total_size(0)) {
- nlh = (struct nlmsghdr *) skb->data;
+ nlh = nlmsg_hdr(skb);
+ err = 0;
if (nlh->nlmsg_len < NLMSG_HDRLEN || skb->len < nlh->nlmsg_len)
return 0;
- if (cb(skb, nlh, &err) < 0) {
- /* Not an error, but we have to interrupt processing
- * here. Note: that in this case we do not pull
- * message from skb, it will be processed later.
- */
- if (err == 0)
- return -1;
+ /* Only requests are handled by the kernel */
+ if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
+ goto skip;
+
+ /* Skip control messages */
+ if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
+ goto skip;
+
+ err = cb(skb, nlh);
+ if (err == -EINTR) {
+ /* Not an error, but we interrupt processing */
+ netlink_queue_skip(nlh, skb);
+ return err;
+ }
+skip:
+ if (nlh->nlmsg_flags & NLM_F_ACK || err)
netlink_ack(skb, nlh, err);
- } else if (nlh->nlmsg_flags & NLM_F_ACK)
- netlink_ack(skb, nlh, 0);
netlink_queue_skip(nlh, skb);
}
*
* qlen must be initialized to 0 before the initial entry, afterwards
* the function may be called repeatedly until qlen reaches 0.
+ *
+ * The callback function may return -EINTR to signal that processing
+ * of netlink messages shall be interrupted. In this case the message
+ * currently being processed will NOT be requeued onto the receive
+ * queue.
*/
void netlink_run_queue(struct sock *sk, unsigned int *qlen,
- int (*cb)(struct sk_buff *, struct nlmsghdr *, int *))
+ int (*cb)(struct sk_buff *, struct nlmsghdr *))
{
struct sk_buff *skb;
* Pulls the given netlink message off the socket buffer so the next
* call to netlink_queue_run() will not reconsider the message.
*/
-void netlink_queue_skip(struct nlmsghdr *nlh, struct sk_buff *skb)
+static void netlink_queue_skip(struct nlmsghdr *nlh, struct sk_buff *skb)
{
int msglen = NLMSG_ALIGN(nlh->nlmsg_len);
EXPORT_SYMBOL(netlink_ack);
EXPORT_SYMBOL(netlink_run_queue);
-EXPORT_SYMBOL(netlink_queue_skip);
EXPORT_SYMBOL(netlink_broadcast);
EXPORT_SYMBOL(netlink_dump_start);
EXPORT_SYMBOL(netlink_kernel_create);
EXPORT_SYMBOL(netlink_register_notifier);
-EXPORT_SYMBOL(netlink_set_err);
EXPORT_SYMBOL(netlink_set_nonroot);
EXPORT_SYMBOL(netlink_unicast);
EXPORT_SYMBOL(netlink_unregister_notifier);
}
break;
+ case NLA_BINARY:
+ if (pt->len && attrlen > pt->len)
+ return -ERANGE;
+ break;
+
default:
if (pt->len)
minlen = pt->len;
return -ENOENT;
}
-static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
- int *errp)
+static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct genl_ops *ops;
struct genl_family *family;
struct genl_info info;
struct genlmsghdr *hdr = nlmsg_data(nlh);
- int hdrlen, err = -EINVAL;
-
- if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
- goto ignore;
-
- if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
- goto ignore;
+ int hdrlen, err;
family = genl_family_find_byid(nlh->nlmsg_type);
- if (family == NULL) {
- err = -ENOENT;
- goto errout;
- }
+ if (family == NULL)
+ return -ENOENT;
hdrlen = GENL_HDRLEN + family->hdrsize;
if (nlh->nlmsg_len < nlmsg_msg_size(hdrlen))
- goto errout;
+ return -EINVAL;
ops = genl_get_cmd(hdr->cmd, family);
- if (ops == NULL) {
- err = -EOPNOTSUPP;
- goto errout;
- }
+ if (ops == NULL)
+ return -EOPNOTSUPP;
- if ((ops->flags & GENL_ADMIN_PERM) && security_netlink_recv(skb, CAP_NET_ADMIN)) {
- err = -EPERM;
- goto errout;
- }
+ if ((ops->flags & GENL_ADMIN_PERM) &&
+ security_netlink_recv(skb, CAP_NET_ADMIN))
+ return -EPERM;
if (nlh->nlmsg_flags & NLM_F_DUMP) {
- if (ops->dumpit == NULL) {
- err = -EOPNOTSUPP;
- goto errout;
- }
+ if (ops->dumpit == NULL)
+ return -EOPNOTSUPP;
- *errp = err = netlink_dump_start(genl_sock, skb, nlh,
- ops->dumpit, ops->done);
- if (err == 0)
- skb_pull(skb, min(NLMSG_ALIGN(nlh->nlmsg_len),
- skb->len));
- return -1;
+ return netlink_dump_start(genl_sock, skb, nlh,
+ ops->dumpit, ops->done);
}
- if (ops->doit == NULL) {
- err = -EOPNOTSUPP;
- goto errout;
- }
+ if (ops->doit == NULL)
+ return -EOPNOTSUPP;
if (family->attrbuf) {
err = nlmsg_parse(nlh, hdrlen, family->attrbuf, family->maxattr,
ops->policy);
if (err < 0)
- goto errout;
+ return err;
}
info.snd_seq = nlh->nlmsg_seq;
info.userhdr = nlmsg_data(nlh) + GENL_HDRLEN;
info.attrs = family->attrbuf;
- *errp = err = ops->doit(skb, &info);
- return err;
-
-ignore:
- return 0;
-
-errout:
- *errp = err;
- return -1;
+ return ops->doit(skb, &info);
}
static void genl_rcv(struct sock *sk, int len)
netlink_set_nonroot(NETLINK_GENERIC, NL_NONROOT_RECV);
genl_sock = netlink_kernel_create(NETLINK_GENERIC, GENL_MAX_ID,
- genl_rcv, THIS_MODULE);
+ genl_rcv, NULL, THIS_MODULE);
if (genl_sock == NULL)
panic("GENL: Cannot initialize generic netlink\n");
ax25_address *source = NULL;
ax25_uid_assoc *user;
struct net_device *dev;
+ int err = 0;
lock_sock(sk);
if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) {
sock->state = SS_CONNECTED;
- release_sock(sk);
- return 0; /* Connect completed during a ERESTARTSYS event */
+ goto out_release; /* Connect completed during a ERESTARTSYS event */
}
if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) {
sock->state = SS_UNCONNECTED;
- release_sock(sk);
- return -ECONNREFUSED;
+ err = -ECONNREFUSED;
+ goto out_release;
}
if (sk->sk_state == TCP_ESTABLISHED) {
- release_sock(sk);
- return -EISCONN; /* No reconnect on a seqpacket socket */
+ err = -EISCONN; /* No reconnect on a seqpacket socket */
+ goto out_release;
}
sk->sk_state = TCP_CLOSE;
sock->state = SS_UNCONNECTED;
if (addr_len != sizeof(struct sockaddr_ax25) && addr_len != sizeof(struct full_sockaddr_ax25)) {
- release_sock(sk);
- return -EINVAL;
+ err = -EINVAL;
+ goto out_release;
}
if (addr->sax25_family != AF_NETROM) {
- release_sock(sk);
- return -EINVAL;
+ err = -EINVAL;
+ goto out_release;
}
if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */
sock_reset_flag(sk, SOCK_ZAPPED);
if ((dev = nr_dev_first()) == NULL) {
- release_sock(sk);
- return -ENETUNREACH;
+ err = -ENETUNREACH;
+ goto out_release;
}
source = (ax25_address *)dev->dev_addr;
} else {
if (ax25_uid_policy && !capable(CAP_NET_ADMIN)) {
dev_put(dev);
- release_sock(sk);
- return -EPERM;
+ err = -EPERM;
+ goto out_release;
}
nr->user_addr = *source;
}
/* Now the loop */
if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) {
- release_sock(sk);
- return -EINPROGRESS;
+ err = -EINPROGRESS;
+ goto out_release;
}
/*
* closed.
*/
if (sk->sk_state == TCP_SYN_SENT) {
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
+ DEFINE_WAIT(wait);
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
+ prepare_to_wait(sk->sk_sleep, &wait,
+ TASK_INTERRUPTIBLE);
if (sk->sk_state != TCP_SYN_SENT)
break;
- release_sock(sk);
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+ if (err)
+ goto out_release;
}
if (sk->sk_state != TCP_ESTABLISHED) {
sock->state = SS_UNCONNECTED;
- release_sock(sk);
- return sock_error(sk); /* Always set at this point */
+ err = sock_error(sk); /* Always set at this point */
+ goto out_release;
}
sock->state = SS_CONNECTED;
+
+out_release:
release_sock(sk);
- return 0;
+ return err;
}
static int nr_accept(struct socket *sock, struct socket *newsock, int flags)
{
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
struct sk_buff *skb;
struct sock *newsk;
+ DEFINE_WAIT(wait);
struct sock *sk;
int err = 0;
lock_sock(sk);
if (sk->sk_type != SOCK_SEQPACKET) {
err = -EOPNOTSUPP;
- goto out;
+ goto out_release;
}
if (sk->sk_state != TCP_LISTEN) {
err = -EINVAL;
- goto out;
+ goto out_release;
}
/*
* The write queue this time is holding sockets ready to use
* hooked into the SABM we saved
*/
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
+ prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
skb = skb_dequeue(&sk->sk_receive_queue);
if (skb)
break;
- current->state = TASK_INTERRUPTIBLE;
- release_sock(sk);
if (flags & O_NONBLOCK) {
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -EWOULDBLOCK;
+ err = -EWOULDBLOCK;
+ break;
}
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+ if (err)
+ goto out_release;
newsk = skb->sk;
newsk->sk_socket = newsock;
sk_acceptq_removed(sk);
newsock->sk = newsk;
-out:
+out_release:
release_sock(sk);
+
return err;
}
if (frametype == NR_PROTOEXT &&
circuit_index == NR_PROTO_IP && circuit_id == NR_PROTO_IP) {
skb_pull(skb, NR_NETWORK_LEN + NR_TRANSPORT_LEN);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
return nr_rx_ip(skb, dev);
}
}
if (sk != NULL) {
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
if (frametype == NR_CONNACK && skb->len == 22)
nr_sk(sk)->bpqext = 1;
goto out;
skb_reserve(skb, size - len);
+ skb_reset_transport_header(skb);
/*
* Push down the NET/ROM header
/*
* Put the data on the end
*/
+ skb_put(skb, len);
- skb->h.raw = skb_put(skb, len);
-
- asmptr = skb->h.raw;
SOCK_DEBUG(sk, "NET/ROM: Appending user data\n");
/* User data follows immediately after the NET/ROM transport header */
- if (memcpy_fromiovec(asmptr, msg->msg_iov, len)) {
+ if (memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len)) {
kfree_skb(skb);
err = -EFAULT;
goto out;
return er;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
copied = skb->len;
if (copied > size) {
if (sax != NULL) {
sax->sax25_family = AF_NETROM;
- memcpy(sax->sax25_call.ax25_call, skb->data + 7, AX25_ADDR_LEN);
+ skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call,
+ AX25_ADDR_LEN);
}
msg->msg_namelen = sizeof(*sax);
release_sock(sk);
return ret;
+ case SIOCGSTAMPNS:
+ lock_sock(sk);
+ ret = sock_get_timestampns(sk, argp);
+ release_sock(sk);
+ return ret;
+
case SIOCGIFADDR:
case SIOCSIFADDR:
case SIOCGIFDSTADDR:
/* Spoof incoming device */
skb->dev = dev;
- skb->mac.raw = skb->nh.raw;
- skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
skb->pkt_type = PACKET_HOST;
netif_rx(skb);
if ((skbn = alloc_skb(nr->fraglen, GFP_ATOMIC)) == NULL)
return 1;
- skbn->h.raw = skbn->data;
+ skb_reset_transport_header(skbn);
while ((skbo = skb_dequeue(&nr->frag_queue)) != NULL) {
- memcpy(skb_put(skbn, skbo->len), skbo->data, skbo->len);
+ skb_copy_from_linear_data(skbo,
+ skb_put(skbn, skbo->len),
+ skbo->len);
kfree_skb(skbo);
}
struct sk_buff *skbn;
if ((skbn = alloc_skb(skb->len, GFP_ATOMIC)) != NULL) {
- memcpy(skb_put(skbn, skb->len), skb->data, skb->len);
- skbn->h.raw = skbn->data;
+ skb_copy_from_linear_data(skb, skb_put(skbn, skb->len), skb->len);
+ skb_reset_transport_header(skbn);
skb_queue_tail(&loopback_queue, skbn);
if (skb->len - NR_TRANSPORT_LEN > NR_MAX_PACKET_SIZE) {
/* Save a copy of the Transport Header */
- memcpy(transport, skb->data, NR_TRANSPORT_LEN);
+ skb_copy_from_linear_data(skb, transport, NR_TRANSPORT_LEN);
skb_pull(skb, NR_TRANSPORT_LEN);
frontlen = skb_headroom(skb);
len = (NR_MAX_PACKET_SIZE > skb->len) ? skb->len : NR_MAX_PACKET_SIZE;
/* Copy the user data */
- memcpy(skb_put(skbn, len), skb->data, len);
+ skb_copy_from_linear_data(skb, skb_put(skbn, len), len);
skb_pull(skb, len);
/* Duplicate the Transport Header */
skb_push(skbn, NR_TRANSPORT_LEN);
- memcpy(skbn->data, transport, NR_TRANSPORT_LEN);
-
+ skb_copy_to_linear_data(skbn, transport,
+ NR_TRANSPORT_LEN);
if (skb->len > 0)
skbn->data[4] |= NR_MORE_FLAG;
dptr = skb_put(skbn, NR_NETWORK_LEN + NR_TRANSPORT_LEN);
- memcpy(dptr, skb->data + 7, AX25_ADDR_LEN);
+ skb_copy_from_linear_data_offset(skb, 7, dptr, AX25_ADDR_LEN);
dptr[6] &= ~AX25_CBIT;
dptr[6] &= ~AX25_EBIT;
dptr[6] |= AX25_SSSID_SPARE;
dptr += AX25_ADDR_LEN;
- memcpy(dptr, skb->data + 0, AX25_ADDR_LEN);
+ skb_copy_from_linear_data(skb, dptr, AX25_ADDR_LEN);
dptr[6] &= ~AX25_CBIT;
dptr[6] |= AX25_EBIT;
dptr[6] |= AX25_SSSID_SPARE;
-----------
Incoming, dev->hard_header!=NULL
- mac.raw -> ll header
- data -> data
+ mac_header -> ll header
+ data -> data
Outgoing, dev->hard_header!=NULL
- mac.raw -> ll header
- data -> ll header
+ mac_header -> ll header
+ data -> ll header
Incoming, dev->hard_header==NULL
- mac.raw -> UNKNOWN position. It is very likely, that it points to ll header.
- PPP makes it, that is wrong, because introduce assymetry
- between rx and tx paths.
- data -> data
+ mac_header -> UNKNOWN position. It is very likely, that it points to ll
+ header. PPP makes it, that is wrong, because introduce
+ assymetry between rx and tx paths.
+ data -> data
Outgoing, dev->hard_header==NULL
- mac.raw -> data. ll header is still not built!
- data -> data
+ mac_header -> data. ll header is still not built!
+ data -> data
Resume
If dev->hard_header==NULL we are unlikely to restore sensible ll header.
------------
dev->hard_header != NULL
- mac.raw -> ll header
- data -> ll header
+ mac_header -> ll header
+ data -> ll header
dev->hard_header == NULL (ll header is added by device, we cannot control it)
- mac.raw -> data
- data -> data
+ mac_header -> data
+ data -> data
We should set nh.raw on output to correct posistion,
packet classifier depends on it.
struct packet_type prot_hook;
spinlock_t bind_lock;
unsigned int running:1, /* prot_hook is attached*/
- auxdata:1;
+ auxdata:1,
+ origdev:1;
int ifindex; /* bound device */
__be16 num;
#ifdef CONFIG_PACKET_MULTICAST
* Incoming packets have ll header pulled,
* push it back.
*
- * For outgoing ones skb->data == skb->mac.raw
+ * For outgoing ones skb->data == skb_mac_header(skb)
* so that this procedure is noop.
*/
spkt = &PACKET_SKB_CB(skb)->sa.pkt;
- skb_push(skb, skb->data-skb->mac.raw);
+ skb_push(skb, skb->data - skb_mac_header(skb));
/*
* The SOCK_PACKET socket receives _all_ frames.
* notable one here. This should really be fixed at the driver level.
*/
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
/* Try to align data part correctly */
if (dev->hard_header) {
skb->data -= dev->hard_header_len;
skb->tail -= dev->hard_header_len;
if (len < dev->hard_header_len)
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
}
/* Returns -EFAULT on error */
never delivered to user.
*/
if (sk->sk_type != SOCK_DGRAM)
- skb_push(skb, skb->data - skb->mac.raw);
+ skb_push(skb, skb->data - skb_mac_header(skb));
else if (skb->pkt_type == PACKET_OUTGOING) {
/* Special case: outgoing packets have ll header at head */
- skb_pull(skb, skb->nh.raw - skb->data);
+ skb_pull(skb, skb_network_offset(skb));
}
}
sll->sll_hatype = dev->type;
sll->sll_protocol = skb->protocol;
sll->sll_pkttype = skb->pkt_type;
- sll->sll_ifindex = dev->ifindex;
+ if (unlikely(po->origdev) && skb->pkt_type == PACKET_HOST)
+ sll->sll_ifindex = orig_dev->ifindex;
+ else
+ sll->sll_ifindex = dev->ifindex;
sll->sll_halen = 0;
if (dev->hard_header_parse)
unsigned long status = TP_STATUS_LOSING|TP_STATUS_USER;
unsigned short macoff, netoff;
struct sk_buff *copy_skb = NULL;
+ struct timeval tv;
if (skb->pkt_type == PACKET_LOOPBACK)
goto drop;
if (dev->hard_header) {
if (sk->sk_type != SOCK_DGRAM)
- skb_push(skb, skb->data - skb->mac.raw);
+ skb_push(skb, skb->data - skb_mac_header(skb));
else if (skb->pkt_type == PACKET_OUTGOING) {
/* Special case: outgoing packets have ll header at head */
- skb_pull(skb, skb->nh.raw - skb->data);
+ skb_pull(skb, skb_network_offset(skb));
}
}
if (sk->sk_type == SOCK_DGRAM) {
macoff = netoff = TPACKET_ALIGN(TPACKET_HDRLEN) + 16;
} else {
- unsigned maclen = skb->nh.raw - skb->data;
+ unsigned maclen = skb_network_offset(skb);
netoff = TPACKET_ALIGN(TPACKET_HDRLEN + (maclen < 16 ? 16 : maclen));
macoff = netoff - maclen;
}
h->tp_snaplen = snaplen;
h->tp_mac = macoff;
h->tp_net = netoff;
- if (skb->tstamp.off_sec == 0) {
+ if (skb->tstamp.tv64 == 0) {
__net_timestamp(skb);
sock_enable_timestamp(sk);
}
- h->tp_sec = skb->tstamp.off_sec;
- h->tp_usec = skb->tstamp.off_usec;
+ tv = ktime_to_timeval(skb->tstamp);
+ h->tp_sec = tv.tv_sec;
+ h->tp_usec = tv.tv_usec;
sll = (struct sockaddr_ll*)((u8*)h + TPACKET_ALIGN(sizeof(*h)));
sll->sll_halen = 0;
sll->sll_hatype = dev->type;
sll->sll_protocol = skb->protocol;
sll->sll_pkttype = skb->pkt_type;
- sll->sll_ifindex = dev->ifindex;
+ if (unlikely(po->origdev) && skb->pkt_type == PACKET_HOST)
+ sll->sll_ifindex = orig_dev->ifindex;
+ else
+ sll->sll_ifindex = dev->ifindex;
h->tp_status = status;
smp_mb();
goto out_unlock;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
if (dev->hard_header) {
int res;
err = -EINVAL;
res = dev->hard_header(skb, dev, ntohs(proto), addr, NULL, len);
if (sock->type != SOCK_DGRAM) {
- skb->tail = skb->data;
+ skb_reset_tail_pointer(skb);
skb->len = 0;
} else if (res < 0)
goto out_free;
aux.tp_len = PACKET_SKB_CB(skb)->origlen;
aux.tp_snaplen = skb->len;
aux.tp_mac = 0;
- aux.tp_net = skb->nh.raw - skb->data;
+ aux.tp_net = skb_network_offset(skb);
put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux);
}
po->auxdata = !!val;
return 0;
}
+ case PACKET_ORIGDEV:
+ {
+ int val;
+
+ if (optlen < sizeof(val))
+ return -EINVAL;
+ if (copy_from_user(&val, optval, sizeof(val)))
+ return -EFAULT;
+
+ po->origdev = !!val;
+ return 0;
+ }
default:
return -ENOPROTOOPT;
}
len = sizeof(int);
val = po->auxdata;
+ data = &val;
+ break;
+ case PACKET_ORIGDEV:
+ if (len > sizeof(int))
+ len = sizeof(int);
+ val = po->origdev;
+
data = &val;
break;
default:
}
case SIOCGSTAMP:
return sock_get_timestamp(sk, (struct timeval __user *)arg);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, (struct timespec __user *)arg);
#ifdef CONFIG_INET
case SIOCADDRT:
* closed.
*/
if (sk->sk_state == TCP_SYN_SENT) {
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
+ DEFINE_WAIT(wait);
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
+ prepare_to_wait(sk->sk_sleep, &wait,
+ TASK_INTERRUPTIBLE);
if (sk->sk_state != TCP_SYN_SENT)
break;
- release_sock(sk);
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+
+ if (err)
+ goto out_release;
}
if (sk->sk_state != TCP_ESTABLISHED) {
static int rose_accept(struct socket *sock, struct socket *newsock, int flags)
{
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
struct sk_buff *skb;
struct sock *newsk;
+ DEFINE_WAIT(wait);
struct sock *sk;
int err = 0;
lock_sock(sk);
if (sk->sk_type != SOCK_SEQPACKET) {
err = -EOPNOTSUPP;
- goto out;
+ goto out_release;
}
if (sk->sk_state != TCP_LISTEN) {
err = -EINVAL;
- goto out;
+ goto out_release;
}
/*
* The write queue this time is holding sockets ready to use
* hooked into the SABM we saved
*/
- add_wait_queue(sk->sk_sleep, &wait);
for (;;) {
+ prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
+
skb = skb_dequeue(&sk->sk_receive_queue);
if (skb)
break;
- current->state = TASK_INTERRUPTIBLE;
- release_sock(sk);
if (flags & O_NONBLOCK) {
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -EWOULDBLOCK;
+ err = -EWOULDBLOCK;
+ break;
}
- if (!signal_pending(tsk)) {
+ if (!signal_pending(current)) {
+ release_sock(sk);
schedule();
lock_sock(sk);
continue;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
- return -ERESTARTSYS;
+ err = -ERESTARTSYS;
+ break;
}
- current->state = TASK_RUNNING;
- remove_wait_queue(sk->sk_sleep, &wait);
+ finish_wait(sk->sk_sleep, &wait);
+ if (err)
+ goto out_release;
newsk = skb->sk;
newsk->sk_socket = newsock;
sk->sk_ack_backlog--;
newsock->sk = newsk;
-out:
+out_release:
release_sock(sk);
return err;
*/
SOCK_DEBUG(sk, "ROSE: Appending user data\n");
- asmptr = skb->h.raw = skb_put(skb, len);
+ skb_reset_transport_header(skb);
+ skb_put(skb, len);
- err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+ err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
if (err) {
kfree_skb(skb);
return err;
int lg;
/* Save a copy of the Header */
- memcpy(header, skb->data, ROSE_MIN_LEN);
+ skb_copy_from_linear_data(skb, header, ROSE_MIN_LEN);
skb_pull(skb, ROSE_MIN_LEN);
frontlen = skb_headroom(skb);
lg = (ROSE_PACLEN > skb->len) ? skb->len : ROSE_PACLEN;
/* Copy the user data */
- memcpy(skb_put(skbn, lg), skb->data, lg);
+ skb_copy_from_linear_data(skb, skb_put(skbn, lg), lg);
skb_pull(skb, lg);
/* Duplicate the Header */
skb_push(skbn, ROSE_MIN_LEN);
- memcpy(skbn->data, header, ROSE_MIN_LEN);
+ skb_copy_to_linear_data(skbn, header, ROSE_MIN_LEN);
if (skb->len > 0)
skbn->data[2] |= M_BIT;
*asmptr = qbit;
}
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
copied = skb->len;
if (copied > size) {
case SIOCGSTAMP:
return sock_get_timestamp(sk, (struct timeval __user *) argp);
+ case SIOCGSTAMPNS:
+ return sock_get_timestampns(sk, (struct timespec __user *) argp);
+
case SIOCGIFADDR:
case SIOCSIFADDR:
case SIOCGIFDSTADDR:
dest = (rose_address *)(skb->data + 4);
lci_o = 0xFFF - lci_i;
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
sk = rose_find_socket(lci_o, &rose_loopback_neigh);
if (sk) {
}
}
else {
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
res = rose_process_rx_frame(sk, skb);
goto out;
}
--- /dev/null
+#
+# RxRPC session sockets
+#
+
+config AF_RXRPC
+ tristate "RxRPC session sockets"
+ depends on EXPERIMENTAL
+ help
+ Say Y or M here to include support for RxRPC session sockets (just
+ the transport part, not the presentation part: (un)marshalling is
+ left to the application).
+
+ These are used for AFS kernel filesystem and userspace utilities.
+
+ This module at the moment only supports client operations and is
+ currently incomplete.
+
+ See Documentation/networking/rxrpc.txt.
+
+
+config AF_RXRPC_DEBUG
+ bool "RxRPC dynamic debugging"
+ depends on AF_RXRPC
+ help
+ Say Y here to make runtime controllable debugging messages appear.
+
+ See Documentation/networking/rxrpc.txt.
+
+
+config RXKAD
+ tristate "RxRPC Kerberos security"
+ depends on AF_RXRPC && KEYS
+ help
+ Provide kerberos 4 and AFS kaserver security handling for AF_RXRPC
+ through the use of the key retention service.
+
+ See Documentation/networking/rxrpc.txt.
#
-# Makefile for Linux kernel Rx RPC
+# Makefile for Linux kernel RxRPC
#
-#CFLAGS += -finstrument-functions
-
-rxrpc-objs := \
- call.o \
- connection.o \
- krxiod.o \
- krxsecd.o \
- krxtimod.o \
- main.o \
- peer.o \
- rxrpc_syms.o \
- transport.o
+af-rxrpc-objs := \
+ af_rxrpc.o \
+ ar-accept.o \
+ ar-ack.o \
+ ar-call.o \
+ ar-connection.o \
+ ar-connevent.o \
+ ar-error.o \
+ ar-input.o \
+ ar-key.o \
+ ar-local.o \
+ ar-output.o \
+ ar-peer.o \
+ ar-recvmsg.o \
+ ar-security.o \
+ ar-skbuff.o \
+ ar-transport.o
ifeq ($(CONFIG_PROC_FS),y)
-rxrpc-objs += proc.o
-endif
-ifeq ($(CONFIG_SYSCTL),y)
-rxrpc-objs += sysctl.o
+af-rxrpc-objs += ar-proc.o
endif
-obj-$(CONFIG_RXRPC) := rxrpc.o
+obj-$(CONFIG_AF_RXRPC) += af-rxrpc.o
+
+obj-$(CONFIG_RXKAD) += rxkad.o
--- /dev/null
+/* AF_RXRPC implementation
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/poll.h>
+#include <linux/proc_fs.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+MODULE_DESCRIPTION("RxRPC network protocol");
+MODULE_AUTHOR("Red Hat, Inc.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_RXRPC);
+
+unsigned rxrpc_debug; // = RXRPC_DEBUG_KPROTO;
+module_param_named(debug, rxrpc_debug, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(rxrpc_debug, "RxRPC debugging mask");
+
+static int sysctl_rxrpc_max_qlen __read_mostly = 10;
+
+static struct proto rxrpc_proto;
+static const struct proto_ops rxrpc_rpc_ops;
+
+/* local epoch for detecting local-end reset */
+__be32 rxrpc_epoch;
+
+/* current debugging ID */
+atomic_t rxrpc_debug_id;
+
+/* count of skbs currently in use */
+atomic_t rxrpc_n_skbs;
+
+struct workqueue_struct *rxrpc_workqueue;
+
+static void rxrpc_sock_destructor(struct sock *);
+
+/*
+ * see if an RxRPC socket is currently writable
+ */
+static inline int rxrpc_writable(struct sock *sk)
+{
+ return atomic_read(&sk->sk_wmem_alloc) < (size_t) sk->sk_sndbuf;
+}
+
+/*
+ * wait for write bufferage to become available
+ */
+static void rxrpc_write_space(struct sock *sk)
+{
+ _enter("%p", sk);
+ read_lock(&sk->sk_callback_lock);
+ if (rxrpc_writable(sk)) {
+ if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
+ wake_up_interruptible(sk->sk_sleep);
+ sk_wake_async(sk, 2, POLL_OUT);
+ }
+ read_unlock(&sk->sk_callback_lock);
+}
+
+/*
+ * validate an RxRPC address
+ */
+static int rxrpc_validate_address(struct rxrpc_sock *rx,
+ struct sockaddr_rxrpc *srx,
+ int len)
+{
+ if (len < sizeof(struct sockaddr_rxrpc))
+ return -EINVAL;
+
+ if (srx->srx_family != AF_RXRPC)
+ return -EAFNOSUPPORT;
+
+ if (srx->transport_type != SOCK_DGRAM)
+ return -ESOCKTNOSUPPORT;
+
+ len -= offsetof(struct sockaddr_rxrpc, transport);
+ if (srx->transport_len < sizeof(sa_family_t) ||
+ srx->transport_len > len)
+ return -EINVAL;
+
+ if (srx->transport.family != rx->proto)
+ return -EAFNOSUPPORT;
+
+ switch (srx->transport.family) {
+ case AF_INET:
+ _debug("INET: %x @ %u.%u.%u.%u",
+ ntohs(srx->transport.sin.sin_port),
+ NIPQUAD(srx->transport.sin.sin_addr));
+ if (srx->transport_len > 8)
+ memset((void *)&srx->transport + 8, 0,
+ srx->transport_len - 8);
+ break;
+
+ case AF_INET6:
+ default:
+ return -EAFNOSUPPORT;
+ }
+
+ return 0;
+}
+
+/*
+ * bind a local address to an RxRPC socket
+ */
+static int rxrpc_bind(struct socket *sock, struct sockaddr *saddr, int len)
+{
+ struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *) saddr;
+ struct sock *sk = sock->sk;
+ struct rxrpc_local *local;
+ struct rxrpc_sock *rx = rxrpc_sk(sk), *prx;
+ __be16 service_id;
+ int ret;
+
+ _enter("%p,%p,%d", rx, saddr, len);
+
+ ret = rxrpc_validate_address(rx, srx, len);
+ if (ret < 0)
+ goto error;
+
+ lock_sock(&rx->sk);
+
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED) {
+ ret = -EINVAL;
+ goto error_unlock;
+ }
+
+ memcpy(&rx->srx, srx, sizeof(rx->srx));
+
+ /* find a local transport endpoint if we don't have one already */
+ local = rxrpc_lookup_local(&rx->srx);
+ if (IS_ERR(local)) {
+ ret = PTR_ERR(local);
+ goto error_unlock;
+ }
+
+ rx->local = local;
+ if (srx->srx_service) {
+ service_id = htons(srx->srx_service);
+ write_lock_bh(&local->services_lock);
+ list_for_each_entry(prx, &local->services, listen_link) {
+ if (prx->service_id == service_id)
+ goto service_in_use;
+ }
+
+ rx->service_id = service_id;
+ list_add_tail(&rx->listen_link, &local->services);
+ write_unlock_bh(&local->services_lock);
+
+ rx->sk.sk_state = RXRPC_SERVER_BOUND;
+ } else {
+ rx->sk.sk_state = RXRPC_CLIENT_BOUND;
+ }
+
+ release_sock(&rx->sk);
+ _leave(" = 0");
+ return 0;
+
+service_in_use:
+ ret = -EADDRINUSE;
+ write_unlock_bh(&local->services_lock);
+error_unlock:
+ release_sock(&rx->sk);
+error:
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * set the number of pending calls permitted on a listening socket
+ */
+static int rxrpc_listen(struct socket *sock, int backlog)
+{
+ struct sock *sk = sock->sk;
+ struct rxrpc_sock *rx = rxrpc_sk(sk);
+ int ret;
+
+ _enter("%p,%d", rx, backlog);
+
+ lock_sock(&rx->sk);
+
+ switch (rx->sk.sk_state) {
+ case RXRPC_UNCONNECTED:
+ ret = -EADDRNOTAVAIL;
+ break;
+ case RXRPC_CLIENT_BOUND:
+ case RXRPC_CLIENT_CONNECTED:
+ default:
+ ret = -EBUSY;
+ break;
+ case RXRPC_SERVER_BOUND:
+ ASSERT(rx->local != NULL);
+ sk->sk_max_ack_backlog = backlog;
+ rx->sk.sk_state = RXRPC_SERVER_LISTENING;
+ ret = 0;
+ break;
+ }
+
+ release_sock(&rx->sk);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * find a transport by address
+ */
+static struct rxrpc_transport *rxrpc_name_to_transport(struct socket *sock,
+ struct sockaddr *addr,
+ int addr_len, int flags,
+ gfp_t gfp)
+{
+ struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *) addr;
+ struct rxrpc_transport *trans;
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ struct rxrpc_peer *peer;
+
+ _enter("%p,%p,%d,%d", rx, addr, addr_len, flags);
+
+ ASSERT(rx->local != NULL);
+ ASSERT(rx->sk.sk_state > RXRPC_UNCONNECTED);
+
+ if (rx->srx.transport_type != srx->transport_type)
+ return ERR_PTR(-ESOCKTNOSUPPORT);
+ if (rx->srx.transport.family != srx->transport.family)
+ return ERR_PTR(-EAFNOSUPPORT);
+
+ /* find a remote transport endpoint from the local one */
+ peer = rxrpc_get_peer(srx, gfp);
+ if (IS_ERR(peer))
+ return ERR_PTR(PTR_ERR(peer));
+
+ /* find a transport */
+ trans = rxrpc_get_transport(rx->local, peer, gfp);
+ rxrpc_put_peer(peer);
+ _leave(" = %p", trans);
+ return trans;
+}
+
+/**
+ * rxrpc_kernel_begin_call - Allow a kernel service to begin a call
+ * @sock: The socket on which to make the call
+ * @srx: The address of the peer to contact (defaults to socket setting)
+ * @key: The security context to use (defaults to socket setting)
+ * @user_call_ID: The ID to use
+ *
+ * Allow a kernel service to begin a call on the nominated socket. This just
+ * sets up all the internal tracking structures and allocates connection and
+ * call IDs as appropriate. The call to be used is returned.
+ *
+ * The default socket destination address and security may be overridden by
+ * supplying @srx and @key.
+ */
+struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock,
+ struct sockaddr_rxrpc *srx,
+ struct key *key,
+ unsigned long user_call_ID,
+ gfp_t gfp)
+{
+ struct rxrpc_conn_bundle *bundle;
+ struct rxrpc_transport *trans;
+ struct rxrpc_call *call;
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ __be16 service_id;
+
+ _enter(",,%x,%lx", key_serial(key), user_call_ID);
+
+ lock_sock(&rx->sk);
+
+ if (srx) {
+ trans = rxrpc_name_to_transport(sock, (struct sockaddr *) srx,
+ sizeof(*srx), 0, gfp);
+ if (IS_ERR(trans)) {
+ call = ERR_PTR(PTR_ERR(trans));
+ trans = NULL;
+ goto out;
+ }
+ } else {
+ trans = rx->trans;
+ if (!trans) {
+ call = ERR_PTR(-ENOTCONN);
+ goto out;
+ }
+ atomic_inc(&trans->usage);
+ }
+
+ service_id = rx->service_id;
+ if (srx)
+ service_id = htons(srx->srx_service);
+
+ if (!key)
+ key = rx->key;
+ if (key && !key->payload.data)
+ key = NULL; /* a no-security key */
+
+ bundle = rxrpc_get_bundle(rx, trans, key, service_id, gfp);
+ if (IS_ERR(bundle)) {
+ call = ERR_PTR(PTR_ERR(bundle));
+ goto out;
+ }
+
+ call = rxrpc_get_client_call(rx, trans, bundle, user_call_ID, true,
+ gfp);
+ rxrpc_put_bundle(trans, bundle);
+out:
+ rxrpc_put_transport(trans);
+ release_sock(&rx->sk);
+ _leave(" = %p", call);
+ return call;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_begin_call);
+
+/**
+ * rxrpc_kernel_end_call - Allow a kernel service to end a call it was using
+ * @call: The call to end
+ *
+ * Allow a kernel service to end a call it was using. The call must be
+ * complete before this is called (the call should be aborted if necessary).
+ */
+void rxrpc_kernel_end_call(struct rxrpc_call *call)
+{
+ _enter("%d{%d}", call->debug_id, atomic_read(&call->usage));
+ rxrpc_remove_user_ID(call->socket, call);
+ rxrpc_put_call(call);
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_end_call);
+
+/**
+ * rxrpc_kernel_intercept_rx_messages - Intercept received RxRPC messages
+ * @sock: The socket to intercept received messages on
+ * @interceptor: The function to pass the messages to
+ *
+ * Allow a kernel service to intercept messages heading for the Rx queue on an
+ * RxRPC socket. They get passed to the specified function instead.
+ * @interceptor should free the socket buffers it is given. @interceptor is
+ * called with the socket receive queue spinlock held and softirqs disabled -
+ * this ensures that the messages will be delivered in the right order.
+ */
+void rxrpc_kernel_intercept_rx_messages(struct socket *sock,
+ rxrpc_interceptor_t interceptor)
+{
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+
+ _enter("");
+ rx->interceptor = interceptor;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_intercept_rx_messages);
+
+/*
+ * connect an RxRPC socket
+ * - this just targets it at a specific destination; no actual connection
+ * negotiation takes place
+ */
+static int rxrpc_connect(struct socket *sock, struct sockaddr *addr,
+ int addr_len, int flags)
+{
+ struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *) addr;
+ struct sock *sk = sock->sk;
+ struct rxrpc_transport *trans;
+ struct rxrpc_local *local;
+ struct rxrpc_sock *rx = rxrpc_sk(sk);
+ int ret;
+
+ _enter("%p,%p,%d,%d", rx, addr, addr_len, flags);
+
+ ret = rxrpc_validate_address(rx, srx, addr_len);
+ if (ret < 0) {
+ _leave(" = %d [bad addr]", ret);
+ return ret;
+ }
+
+ lock_sock(&rx->sk);
+
+ switch (rx->sk.sk_state) {
+ case RXRPC_UNCONNECTED:
+ /* find a local transport endpoint if we don't have one already */
+ ASSERTCMP(rx->local, ==, NULL);
+ rx->srx.srx_family = AF_RXRPC;
+ rx->srx.srx_service = 0;
+ rx->srx.transport_type = srx->transport_type;
+ rx->srx.transport_len = sizeof(sa_family_t);
+ rx->srx.transport.family = srx->transport.family;
+ local = rxrpc_lookup_local(&rx->srx);
+ if (IS_ERR(local)) {
+ release_sock(&rx->sk);
+ return PTR_ERR(local);
+ }
+ rx->local = local;
+ rx->sk.sk_state = RXRPC_CLIENT_BOUND;
+ case RXRPC_CLIENT_BOUND:
+ break;
+ case RXRPC_CLIENT_CONNECTED:
+ release_sock(&rx->sk);
+ return -EISCONN;
+ default:
+ release_sock(&rx->sk);
+ return -EBUSY; /* server sockets can't connect as well */
+ }
+
+ trans = rxrpc_name_to_transport(sock, addr, addr_len, flags,
+ GFP_KERNEL);
+ if (IS_ERR(trans)) {
+ release_sock(&rx->sk);
+ _leave(" = %ld", PTR_ERR(trans));
+ return PTR_ERR(trans);
+ }
+
+ rx->trans = trans;
+ rx->service_id = htons(srx->srx_service);
+ rx->sk.sk_state = RXRPC_CLIENT_CONNECTED;
+
+ release_sock(&rx->sk);
+ return 0;
+}
+
+/*
+ * send a message through an RxRPC socket
+ * - in a client this does a number of things:
+ * - finds/sets up a connection for the security specified (if any)
+ * - initiates a call (ID in control data)
+ * - ends the request phase of a call (if MSG_MORE is not set)
+ * - sends a call data packet
+ * - may send an abort (abort code in control data)
+ */
+static int rxrpc_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *m, size_t len)
+{
+ struct rxrpc_transport *trans;
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ int ret;
+
+ _enter(",{%d},,%zu", rx->sk.sk_state, len);
+
+ if (m->msg_flags & MSG_OOB)
+ return -EOPNOTSUPP;
+
+ if (m->msg_name) {
+ ret = rxrpc_validate_address(rx, m->msg_name, m->msg_namelen);
+ if (ret < 0) {
+ _leave(" = %d [bad addr]", ret);
+ return ret;
+ }
+ }
+
+ trans = NULL;
+ lock_sock(&rx->sk);
+
+ if (m->msg_name) {
+ ret = -EISCONN;
+ trans = rxrpc_name_to_transport(sock, m->msg_name,
+ m->msg_namelen, 0, GFP_KERNEL);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ trans = NULL;
+ goto out;
+ }
+ } else {
+ trans = rx->trans;
+ if (trans)
+ atomic_inc(&trans->usage);
+ }
+
+ switch (rx->sk.sk_state) {
+ case RXRPC_SERVER_LISTENING:
+ if (!m->msg_name) {
+ ret = rxrpc_server_sendmsg(iocb, rx, m, len);
+ break;
+ }
+ case RXRPC_SERVER_BOUND:
+ case RXRPC_CLIENT_BOUND:
+ if (!m->msg_name) {
+ ret = -ENOTCONN;
+ break;
+ }
+ case RXRPC_CLIENT_CONNECTED:
+ ret = rxrpc_client_sendmsg(iocb, rx, trans, m, len);
+ break;
+ default:
+ ret = -ENOTCONN;
+ break;
+ }
+
+out:
+ release_sock(&rx->sk);
+ if (trans)
+ rxrpc_put_transport(trans);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * set RxRPC socket options
+ */
+static int rxrpc_setsockopt(struct socket *sock, int level, int optname,
+ char __user *optval, int optlen)
+{
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ unsigned min_sec_level;
+ int ret;
+
+ _enter(",%d,%d,,%d", level, optname, optlen);
+
+ lock_sock(&rx->sk);
+ ret = -EOPNOTSUPP;
+
+ if (level == SOL_RXRPC) {
+ switch (optname) {
+ case RXRPC_EXCLUSIVE_CONNECTION:
+ ret = -EINVAL;
+ if (optlen != 0)
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ set_bit(RXRPC_SOCK_EXCLUSIVE_CONN, &rx->flags);
+ goto success;
+
+ case RXRPC_SECURITY_KEY:
+ ret = -EINVAL;
+ if (rx->key)
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ ret = rxrpc_request_key(rx, optval, optlen);
+ goto error;
+
+ case RXRPC_SECURITY_KEYRING:
+ ret = -EINVAL;
+ if (rx->key)
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ ret = rxrpc_server_keyring(rx, optval, optlen);
+ goto error;
+
+ case RXRPC_MIN_SECURITY_LEVEL:
+ ret = -EINVAL;
+ if (optlen != sizeof(unsigned))
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ ret = get_user(min_sec_level,
+ (unsigned __user *) optval);
+ if (ret < 0)
+ goto error;
+ ret = -EINVAL;
+ if (min_sec_level > RXRPC_SECURITY_MAX)
+ goto error;
+ rx->min_sec_level = min_sec_level;
+ goto success;
+
+ default:
+ break;
+ }
+ }
+
+success:
+ ret = 0;
+error:
+ release_sock(&rx->sk);
+ return ret;
+}
+
+/*
+ * permit an RxRPC socket to be polled
+ */
+static unsigned int rxrpc_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
+{
+ unsigned int mask;
+ struct sock *sk = sock->sk;
+
+ poll_wait(file, sk->sk_sleep, wait);
+ mask = 0;
+
+ /* the socket is readable if there are any messages waiting on the Rx
+ * queue */
+ if (!skb_queue_empty(&sk->sk_receive_queue))
+ mask |= POLLIN | POLLRDNORM;
+
+ /* the socket is writable if there is space to add new data to the
+ * socket; there is no guarantee that any particular call in progress
+ * on the socket may have space in the Tx ACK window */
+ if (rxrpc_writable(sk))
+ mask |= POLLOUT | POLLWRNORM;
+
+ return mask;
+}
+
+/*
+ * create an RxRPC socket
+ */
+static int rxrpc_create(struct socket *sock, int protocol)
+{
+ struct rxrpc_sock *rx;
+ struct sock *sk;
+
+ _enter("%p,%d", sock, protocol);
+
+ /* we support transport protocol UDP only */
+ if (protocol != PF_INET)
+ return -EPROTONOSUPPORT;
+
+ if (sock->type != SOCK_DGRAM)
+ return -ESOCKTNOSUPPORT;
+
+ sock->ops = &rxrpc_rpc_ops;
+ sock->state = SS_UNCONNECTED;
+
+ sk = sk_alloc(PF_RXRPC, GFP_KERNEL, &rxrpc_proto, 1);
+ if (!sk)
+ return -ENOMEM;
+
+ sock_init_data(sock, sk);
+ sk->sk_state = RXRPC_UNCONNECTED;
+ sk->sk_write_space = rxrpc_write_space;
+ sk->sk_max_ack_backlog = sysctl_rxrpc_max_qlen;
+ sk->sk_destruct = rxrpc_sock_destructor;
+
+ rx = rxrpc_sk(sk);
+ rx->proto = protocol;
+ rx->calls = RB_ROOT;
+
+ INIT_LIST_HEAD(&rx->listen_link);
+ INIT_LIST_HEAD(&rx->secureq);
+ INIT_LIST_HEAD(&rx->acceptq);
+ rwlock_init(&rx->call_lock);
+ memset(&rx->srx, 0, sizeof(rx->srx));
+
+ _leave(" = 0 [%p]", rx);
+ return 0;
+}
+
+/*
+ * RxRPC socket destructor
+ */
+static void rxrpc_sock_destructor(struct sock *sk)
+{
+ _enter("%p", sk);
+
+ rxrpc_purge_queue(&sk->sk_receive_queue);
+
+ BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
+ BUG_TRAP(sk_unhashed(sk));
+ BUG_TRAP(!sk->sk_socket);
+
+ if (!sock_flag(sk, SOCK_DEAD)) {
+ printk("Attempt to release alive rxrpc socket: %p\n", sk);
+ return;
+ }
+}
+
+/*
+ * release an RxRPC socket
+ */
+static int rxrpc_release_sock(struct sock *sk)
+{
+ struct rxrpc_sock *rx = rxrpc_sk(sk);
+
+ _enter("%p{%d,%d}", sk, sk->sk_state, atomic_read(&sk->sk_refcnt));
+
+ /* declare the socket closed for business */
+ sock_orphan(sk);
+ sk->sk_shutdown = SHUTDOWN_MASK;
+
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ sk->sk_state = RXRPC_CLOSE;
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+
+ ASSERTCMP(rx->listen_link.next, !=, LIST_POISON1);
+
+ if (!list_empty(&rx->listen_link)) {
+ write_lock_bh(&rx->local->services_lock);
+ list_del(&rx->listen_link);
+ write_unlock_bh(&rx->local->services_lock);
+ }
+
+ /* try to flush out this socket */
+ rxrpc_release_calls_on_socket(rx);
+ flush_workqueue(rxrpc_workqueue);
+ rxrpc_purge_queue(&sk->sk_receive_queue);
+
+ if (rx->conn) {
+ rxrpc_put_connection(rx->conn);
+ rx->conn = NULL;
+ }
+
+ if (rx->bundle) {
+ rxrpc_put_bundle(rx->trans, rx->bundle);
+ rx->bundle = NULL;
+ }
+ if (rx->trans) {
+ rxrpc_put_transport(rx->trans);
+ rx->trans = NULL;
+ }
+ if (rx->local) {
+ rxrpc_put_local(rx->local);
+ rx->local = NULL;
+ }
+
+ key_put(rx->key);
+ rx->key = NULL;
+ key_put(rx->securities);
+ rx->securities = NULL;
+ sock_put(sk);
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * release an RxRPC BSD socket on close() or equivalent
+ */
+static int rxrpc_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ _enter("%p{%p}", sock, sk);
+
+ if (!sk)
+ return 0;
+
+ sock->sk = NULL;
+
+ return rxrpc_release_sock(sk);
+}
+
+/*
+ * RxRPC network protocol
+ */
+static const struct proto_ops rxrpc_rpc_ops = {
+ .family = PF_UNIX,
+ .owner = THIS_MODULE,
+ .release = rxrpc_release,
+ .bind = rxrpc_bind,
+ .connect = rxrpc_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = rxrpc_poll,
+ .ioctl = sock_no_ioctl,
+ .listen = rxrpc_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = rxrpc_setsockopt,
+ .getsockopt = sock_no_getsockopt,
+ .sendmsg = rxrpc_sendmsg,
+ .recvmsg = rxrpc_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+};
+
+static struct proto rxrpc_proto = {
+ .name = "RXRPC",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct rxrpc_sock),
+ .max_header = sizeof(struct rxrpc_header),
+};
+
+static struct net_proto_family rxrpc_family_ops = {
+ .family = PF_RXRPC,
+ .create = rxrpc_create,
+ .owner = THIS_MODULE,
+};
+
+/*
+ * initialise and register the RxRPC protocol
+ */
+static int __init af_rxrpc_init(void)
+{
+ struct sk_buff *dummy_skb;
+ int ret = -1;
+
+ BUILD_BUG_ON(sizeof(struct rxrpc_skb_priv) > sizeof(dummy_skb->cb));
+
+ rxrpc_epoch = htonl(xtime.tv_sec);
+
+ ret = -ENOMEM;
+ rxrpc_call_jar = kmem_cache_create(
+ "rxrpc_call_jar", sizeof(struct rxrpc_call), 0,
+ SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (!rxrpc_call_jar) {
+ printk(KERN_NOTICE "RxRPC: Failed to allocate call jar\n");
+ goto error_call_jar;
+ }
+
+ rxrpc_workqueue = create_workqueue("krxrpcd");
+ if (!rxrpc_workqueue) {
+ printk(KERN_NOTICE "RxRPC: Failed to allocate work queue\n");
+ goto error_work_queue;
+ }
+
+ ret = proto_register(&rxrpc_proto, 1);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register protocol\n");
+ goto error_proto;
+ }
+
+ ret = sock_register(&rxrpc_family_ops);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register socket family\n");
+ goto error_sock;
+ }
+
+ ret = register_key_type(&key_type_rxrpc);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register client key type\n");
+ goto error_key_type;
+ }
+
+ ret = register_key_type(&key_type_rxrpc_s);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register server key type\n");
+ goto error_key_type_s;
+ }
+
+#ifdef CONFIG_PROC_FS
+ proc_net_fops_create("rxrpc_calls", 0, &rxrpc_call_seq_fops);
+ proc_net_fops_create("rxrpc_conns", 0, &rxrpc_connection_seq_fops);
+#endif
+ return 0;
+
+error_key_type_s:
+ unregister_key_type(&key_type_rxrpc);
+error_key_type:
+ sock_unregister(PF_RXRPC);
+error_sock:
+ proto_unregister(&rxrpc_proto);
+error_proto:
+ destroy_workqueue(rxrpc_workqueue);
+error_work_queue:
+ kmem_cache_destroy(rxrpc_call_jar);
+error_call_jar:
+ return ret;
+}
+
+/*
+ * unregister the RxRPC protocol
+ */
+static void __exit af_rxrpc_exit(void)
+{
+ _enter("");
+ unregister_key_type(&key_type_rxrpc_s);
+ unregister_key_type(&key_type_rxrpc);
+ sock_unregister(PF_RXRPC);
+ proto_unregister(&rxrpc_proto);
+ rxrpc_destroy_all_calls();
+ rxrpc_destroy_all_connections();
+ rxrpc_destroy_all_transports();
+ rxrpc_destroy_all_peers();
+ rxrpc_destroy_all_locals();
+
+ ASSERTCMP(atomic_read(&rxrpc_n_skbs), ==, 0);
+
+ _debug("flush scheduled work");
+ flush_workqueue(rxrpc_workqueue);
+ proc_net_remove("rxrpc_conns");
+ proc_net_remove("rxrpc_calls");
+ destroy_workqueue(rxrpc_workqueue);
+ kmem_cache_destroy(rxrpc_call_jar);
+ _leave("");
+}
+
+module_init(af_rxrpc_init);
+module_exit(af_rxrpc_exit);
--- /dev/null
+/* incoming call handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/errqueue.h>
+#include <linux/udp.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/icmp.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <net/ip.h>
+#include "ar-internal.h"
+
+/*
+ * generate a connection-level abort
+ */
+static int rxrpc_busy(struct rxrpc_local *local, struct sockaddr_rxrpc *srx,
+ struct rxrpc_header *hdr)
+{
+ struct msghdr msg;
+ struct kvec iov[1];
+ size_t len;
+ int ret;
+
+ _enter("%d,,", local->debug_id);
+
+ msg.msg_name = &srx->transport.sin;
+ msg.msg_namelen = sizeof(srx->transport.sin);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ hdr->seq = 0;
+ hdr->type = RXRPC_PACKET_TYPE_BUSY;
+ hdr->flags = 0;
+ hdr->userStatus = 0;
+ hdr->_rsvd = 0;
+
+ iov[0].iov_base = hdr;
+ iov[0].iov_len = sizeof(*hdr);
+
+ len = iov[0].iov_len;
+
+ hdr->serial = htonl(1);
+ _proto("Tx BUSY %%%u", ntohl(hdr->serial));
+
+ ret = kernel_sendmsg(local->socket, &msg, iov, 1, len);
+ if (ret < 0) {
+ _leave(" = -EAGAIN [sendmsg failed: %d]", ret);
+ return -EAGAIN;
+ }
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * accept an incoming call that needs peer, transport and/or connection setting
+ * up
+ */
+static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
+ struct rxrpc_sock *rx,
+ struct sk_buff *skb,
+ struct sockaddr_rxrpc *srx)
+{
+ struct rxrpc_connection *conn;
+ struct rxrpc_transport *trans;
+ struct rxrpc_skb_priv *sp, *nsp;
+ struct rxrpc_peer *peer;
+ struct rxrpc_call *call;
+ struct sk_buff *notification;
+ int ret;
+
+ _enter("");
+
+ sp = rxrpc_skb(skb);
+
+ /* get a notification message to send to the server app */
+ notification = alloc_skb(0, GFP_NOFS);
+ rxrpc_new_skb(notification);
+ notification->mark = RXRPC_SKB_MARK_NEW_CALL;
+
+ peer = rxrpc_get_peer(srx, GFP_NOIO);
+ if (IS_ERR(peer)) {
+ _debug("no peer");
+ ret = -EBUSY;
+ goto error;
+ }
+
+ trans = rxrpc_get_transport(local, peer, GFP_NOIO);
+ rxrpc_put_peer(peer);
+ if (!trans) {
+ _debug("no trans");
+ ret = -EBUSY;
+ goto error;
+ }
+
+ conn = rxrpc_incoming_connection(trans, &sp->hdr, GFP_NOIO);
+ rxrpc_put_transport(trans);
+ if (IS_ERR(conn)) {
+ _debug("no conn");
+ ret = PTR_ERR(conn);
+ goto error;
+ }
+
+ call = rxrpc_incoming_call(rx, conn, &sp->hdr, GFP_NOIO);
+ rxrpc_put_connection(conn);
+ if (IS_ERR(call)) {
+ _debug("no call");
+ ret = PTR_ERR(call);
+ goto error;
+ }
+
+ /* attach the call to the socket */
+ read_lock_bh(&local->services_lock);
+ if (rx->sk.sk_state == RXRPC_CLOSE)
+ goto invalid_service;
+
+ write_lock(&rx->call_lock);
+ if (!test_and_set_bit(RXRPC_CALL_INIT_ACCEPT, &call->flags)) {
+ rxrpc_get_call(call);
+
+ spin_lock(&call->conn->state_lock);
+ if (sp->hdr.securityIndex > 0 &&
+ call->conn->state == RXRPC_CONN_SERVER_UNSECURED) {
+ _debug("await conn sec");
+ list_add_tail(&call->accept_link, &rx->secureq);
+ call->conn->state = RXRPC_CONN_SERVER_CHALLENGING;
+ atomic_inc(&call->conn->usage);
+ set_bit(RXRPC_CONN_CHALLENGE, &call->conn->events);
+ rxrpc_queue_conn(call->conn);
+ } else {
+ _debug("conn ready");
+ call->state = RXRPC_CALL_SERVER_ACCEPTING;
+ list_add_tail(&call->accept_link, &rx->acceptq);
+ rxrpc_get_call(call);
+ nsp = rxrpc_skb(notification);
+ nsp->call = call;
+
+ ASSERTCMP(atomic_read(&call->usage), >=, 3);
+
+ _debug("notify");
+ spin_lock(&call->lock);
+ ret = rxrpc_queue_rcv_skb(call, notification, true,
+ false);
+ spin_unlock(&call->lock);
+ notification = NULL;
+ if (ret < 0)
+ BUG();
+ }
+ spin_unlock(&call->conn->state_lock);
+
+ _debug("queued");
+ }
+ write_unlock(&rx->call_lock);
+
+ _debug("process");
+ rxrpc_fast_process_packet(call, skb);
+
+ _debug("done");
+ read_unlock_bh(&local->services_lock);
+ rxrpc_free_skb(notification);
+ rxrpc_put_call(call);
+ _leave(" = 0");
+ return 0;
+
+invalid_service:
+ _debug("invalid");
+ read_unlock_bh(&local->services_lock);
+
+ read_lock_bh(&call->state_lock);
+ if (!test_bit(RXRPC_CALL_RELEASE, &call->flags) &&
+ !test_and_set_bit(RXRPC_CALL_RELEASE, &call->events)) {
+ rxrpc_get_call(call);
+ rxrpc_queue_call(call);
+ }
+ read_unlock_bh(&call->state_lock);
+ rxrpc_put_call(call);
+ ret = -ECONNREFUSED;
+error:
+ rxrpc_free_skb(notification);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * accept incoming calls that need peer, transport and/or connection setting up
+ * - the packets we get are all incoming client DATA packets that have seq == 1
+ */
+void rxrpc_accept_incoming_calls(struct work_struct *work)
+{
+ struct rxrpc_local *local =
+ container_of(work, struct rxrpc_local, acceptor);
+ struct rxrpc_skb_priv *sp;
+ struct sockaddr_rxrpc srx;
+ struct rxrpc_sock *rx;
+ struct sk_buff *skb;
+ __be16 service_id;
+ int ret;
+
+ _enter("%d", local->debug_id);
+
+ read_lock_bh(&rxrpc_local_lock);
+ if (atomic_read(&local->usage) > 0)
+ rxrpc_get_local(local);
+ else
+ local = NULL;
+ read_unlock_bh(&rxrpc_local_lock);
+ if (!local) {
+ _leave(" [local dead]");
+ return;
+ }
+
+process_next_packet:
+ skb = skb_dequeue(&local->accept_queue);
+ if (!skb) {
+ rxrpc_put_local(local);
+ _leave("\n");
+ return;
+ }
+
+ _net("incoming call skb %p", skb);
+
+ sp = rxrpc_skb(skb);
+
+ /* determine the remote address */
+ memset(&srx, 0, sizeof(srx));
+ srx.srx_family = AF_RXRPC;
+ srx.transport.family = local->srx.transport.family;
+ srx.transport_type = local->srx.transport_type;
+ switch (srx.transport.family) {
+ case AF_INET:
+ srx.transport_len = sizeof(struct sockaddr_in);
+ srx.transport.sin.sin_port = udp_hdr(skb)->source;
+ srx.transport.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
+ break;
+ default:
+ goto busy;
+ }
+
+ /* get the socket providing the service */
+ service_id = sp->hdr.serviceId;
+ read_lock_bh(&local->services_lock);
+ list_for_each_entry(rx, &local->services, listen_link) {
+ if (rx->service_id == service_id &&
+ rx->sk.sk_state != RXRPC_CLOSE)
+ goto found_service;
+ }
+ read_unlock_bh(&local->services_lock);
+ goto invalid_service;
+
+found_service:
+ _debug("found service %hd", ntohs(rx->service_id));
+ if (sk_acceptq_is_full(&rx->sk))
+ goto backlog_full;
+ sk_acceptq_added(&rx->sk);
+ sock_hold(&rx->sk);
+ read_unlock_bh(&local->services_lock);
+
+ ret = rxrpc_accept_incoming_call(local, rx, skb, &srx);
+ if (ret < 0)
+ sk_acceptq_removed(&rx->sk);
+ sock_put(&rx->sk);
+ switch (ret) {
+ case -ECONNRESET: /* old calls are ignored */
+ case -ECONNABORTED: /* aborted calls are reaborted or ignored */
+ case 0:
+ goto process_next_packet;
+ case -ECONNREFUSED:
+ goto invalid_service;
+ case -EBUSY:
+ goto busy;
+ case -EKEYREJECTED:
+ goto security_mismatch;
+ default:
+ BUG();
+ }
+
+backlog_full:
+ read_unlock_bh(&local->services_lock);
+busy:
+ rxrpc_busy(local, &srx, &sp->hdr);
+ rxrpc_free_skb(skb);
+ goto process_next_packet;
+
+invalid_service:
+ skb->priority = RX_INVALID_OPERATION;
+ rxrpc_reject_packet(local, skb);
+ goto process_next_packet;
+
+ /* can't change connection security type mid-flow */
+security_mismatch:
+ skb->priority = RX_PROTOCOL_ERROR;
+ rxrpc_reject_packet(local, skb);
+ goto process_next_packet;
+}
+
+/*
+ * handle acceptance of a call by userspace
+ * - assign the user call ID to the call at the front of the queue
+ */
+struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *rx,
+ unsigned long user_call_ID)
+{
+ struct rxrpc_call *call;
+ struct rb_node *parent, **pp;
+ int ret;
+
+ _enter(",%lx", user_call_ID);
+
+ ASSERT(!irqs_disabled());
+
+ write_lock(&rx->call_lock);
+
+ ret = -ENODATA;
+ if (list_empty(&rx->acceptq))
+ goto out;
+
+ /* check the user ID isn't already in use */
+ ret = -EBADSLT;
+ pp = &rx->calls.rb_node;
+ parent = NULL;
+ while (*pp) {
+ parent = *pp;
+ call = rb_entry(parent, struct rxrpc_call, sock_node);
+
+ if (user_call_ID < call->user_call_ID)
+ pp = &(*pp)->rb_left;
+ else if (user_call_ID > call->user_call_ID)
+ pp = &(*pp)->rb_right;
+ else
+ goto out;
+ }
+
+ /* dequeue the first call and check it's still valid */
+ call = list_entry(rx->acceptq.next, struct rxrpc_call, accept_link);
+ list_del_init(&call->accept_link);
+ sk_acceptq_removed(&rx->sk);
+
+ write_lock_bh(&call->state_lock);
+ switch (call->state) {
+ case RXRPC_CALL_SERVER_ACCEPTING:
+ call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
+ break;
+ case RXRPC_CALL_REMOTELY_ABORTED:
+ case RXRPC_CALL_LOCALLY_ABORTED:
+ ret = -ECONNABORTED;
+ goto out_release;
+ case RXRPC_CALL_NETWORK_ERROR:
+ ret = call->conn->error;
+ goto out_release;
+ case RXRPC_CALL_DEAD:
+ ret = -ETIME;
+ goto out_discard;
+ default:
+ BUG();
+ }
+
+ /* formalise the acceptance */
+ call->user_call_ID = user_call_ID;
+ rb_link_node(&call->sock_node, parent, pp);
+ rb_insert_color(&call->sock_node, &rx->calls);
+ if (test_and_set_bit(RXRPC_CALL_HAS_USERID, &call->flags))
+ BUG();
+ if (test_and_set_bit(RXRPC_CALL_ACCEPTED, &call->events))
+ BUG();
+ rxrpc_queue_call(call);
+
+ rxrpc_get_call(call);
+ write_unlock_bh(&call->state_lock);
+ write_unlock(&rx->call_lock);
+ _leave(" = %p{%d}", call, call->debug_id);
+ return call;
+
+ /* if the call is already dying or dead, then we leave the socket's ref
+ * on it to be released by rxrpc_dead_call_expired() as induced by
+ * rxrpc_release_call() */
+out_release:
+ _debug("release %p", call);
+ if (!test_bit(RXRPC_CALL_RELEASED, &call->flags) &&
+ !test_and_set_bit(RXRPC_CALL_RELEASE, &call->events))
+ rxrpc_queue_call(call);
+out_discard:
+ write_unlock_bh(&call->state_lock);
+ _debug("discard %p", call);
+out:
+ write_unlock(&rx->call_lock);
+ _leave(" = %d", ret);
+ return ERR_PTR(ret);
+}
+
+/*
+ * handle rejectance of a call by userspace
+ * - reject the call at the front of the queue
+ */
+int rxrpc_reject_call(struct rxrpc_sock *rx)
+{
+ struct rxrpc_call *call;
+ int ret;
+
+ _enter("");
+
+ ASSERT(!irqs_disabled());
+
+ write_lock(&rx->call_lock);
+
+ ret = -ENODATA;
+ if (list_empty(&rx->acceptq))
+ goto out;
+
+ /* dequeue the first call and check it's still valid */
+ call = list_entry(rx->acceptq.next, struct rxrpc_call, accept_link);
+ list_del_init(&call->accept_link);
+ sk_acceptq_removed(&rx->sk);
+
+ write_lock_bh(&call->state_lock);
+ switch (call->state) {
+ case RXRPC_CALL_SERVER_ACCEPTING:
+ call->state = RXRPC_CALL_SERVER_BUSY;
+ if (test_and_set_bit(RXRPC_CALL_REJECT_BUSY, &call->events))
+ rxrpc_queue_call(call);
+ ret = 0;
+ goto out_release;
+ case RXRPC_CALL_REMOTELY_ABORTED:
+ case RXRPC_CALL_LOCALLY_ABORTED:
+ ret = -ECONNABORTED;
+ goto out_release;
+ case RXRPC_CALL_NETWORK_ERROR:
+ ret = call->conn->error;
+ goto out_release;
+ case RXRPC_CALL_DEAD:
+ ret = -ETIME;
+ goto out_discard;
+ default:
+ BUG();
+ }
+
+ /* if the call is already dying or dead, then we leave the socket's ref
+ * on it to be released by rxrpc_dead_call_expired() as induced by
+ * rxrpc_release_call() */
+out_release:
+ _debug("release %p", call);
+ if (!test_bit(RXRPC_CALL_RELEASED, &call->flags) &&
+ !test_and_set_bit(RXRPC_CALL_RELEASE, &call->events))
+ rxrpc_queue_call(call);
+out_discard:
+ write_unlock_bh(&call->state_lock);
+ _debug("discard %p", call);
+out:
+ write_unlock(&rx->call_lock);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/**
+ * rxrpc_kernel_accept_call - Allow a kernel service to accept an incoming call
+ * @sock: The socket on which the impending call is waiting
+ * @user_call_ID: The tag to attach to the call
+ *
+ * Allow a kernel service to accept an incoming call, assuming the incoming
+ * call is still valid.
+ */
+struct rxrpc_call *rxrpc_kernel_accept_call(struct socket *sock,
+ unsigned long user_call_ID)
+{
+ struct rxrpc_call *call;
+
+ _enter(",%lx", user_call_ID);
+ call = rxrpc_accept_call(rxrpc_sk(sock->sk), user_call_ID);
+ _leave(" = %p", call);
+ return call;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_accept_call);
+
+/**
+ * rxrpc_kernel_reject_call - Allow a kernel service to reject an incoming call
+ * @sock: The socket on which the impending call is waiting
+ *
+ * Allow a kernel service to reject an incoming call with a BUSY message,
+ * assuming the incoming call is still valid.
+ */
+int rxrpc_kernel_reject_call(struct socket *sock)
+{
+ int ret;
+
+ _enter("");
+ ret = rxrpc_reject_call(rxrpc_sk(sock->sk));
+ _leave(" = %d", ret);
+ return ret;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_reject_call);
--- /dev/null
+/* Management of Tx window, Tx resend, ACKs and out-of-sequence reception
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/circ_buf.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/udp.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static unsigned rxrpc_ack_defer = 1;
+
+static const char *rxrpc_acks[] = {
+ "---", "REQ", "DUP", "OOS", "WIN", "MEM", "PNG", "PNR", "DLY", "IDL",
+ "-?-"
+};
+
+static const s8 rxrpc_ack_priority[] = {
+ [0] = 0,
+ [RXRPC_ACK_DELAY] = 1,
+ [RXRPC_ACK_REQUESTED] = 2,
+ [RXRPC_ACK_IDLE] = 3,
+ [RXRPC_ACK_PING_RESPONSE] = 4,
+ [RXRPC_ACK_DUPLICATE] = 5,
+ [RXRPC_ACK_OUT_OF_SEQUENCE] = 6,
+ [RXRPC_ACK_EXCEEDS_WINDOW] = 7,
+ [RXRPC_ACK_NOSPACE] = 8,
+};
+
+/*
+ * propose an ACK be sent
+ */
+void __rxrpc_propose_ACK(struct rxrpc_call *call, uint8_t ack_reason,
+ __be32 serial, bool immediate)
+{
+ unsigned long expiry;
+ s8 prior = rxrpc_ack_priority[ack_reason];
+
+ ASSERTCMP(prior, >, 0);
+
+ _enter("{%d},%s,%%%x,%u",
+ call->debug_id, rxrpc_acks[ack_reason], ntohl(serial),
+ immediate);
+
+ if (prior < rxrpc_ack_priority[call->ackr_reason]) {
+ if (immediate)
+ goto cancel_timer;
+ return;
+ }
+
+ /* update DELAY, IDLE, REQUESTED and PING_RESPONSE ACK serial
+ * numbers */
+ if (prior == rxrpc_ack_priority[call->ackr_reason]) {
+ if (prior <= 4)
+ call->ackr_serial = serial;
+ if (immediate)
+ goto cancel_timer;
+ return;
+ }
+
+ call->ackr_reason = ack_reason;
+ call->ackr_serial = serial;
+
+ switch (ack_reason) {
+ case RXRPC_ACK_DELAY:
+ _debug("run delay timer");
+ call->ack_timer.expires = jiffies + rxrpc_ack_timeout * HZ;
+ add_timer(&call->ack_timer);
+ return;
+
+ case RXRPC_ACK_IDLE:
+ if (!immediate) {
+ _debug("run defer timer");
+ expiry = 1;
+ goto run_timer;
+ }
+ goto cancel_timer;
+
+ case RXRPC_ACK_REQUESTED:
+ if (!rxrpc_ack_defer)
+ goto cancel_timer;
+ if (!immediate || serial == cpu_to_be32(1)) {
+ _debug("run defer timer");
+ expiry = rxrpc_ack_defer;
+ goto run_timer;
+ }
+
+ default:
+ _debug("immediate ACK");
+ goto cancel_timer;
+ }
+
+run_timer:
+ expiry += jiffies;
+ if (!timer_pending(&call->ack_timer) ||
+ time_after(call->ack_timer.expires, expiry))
+ mod_timer(&call->ack_timer, expiry);
+ return;
+
+cancel_timer:
+ _debug("cancel timer %%%u", ntohl(serial));
+ try_to_del_timer_sync(&call->ack_timer);
+ read_lock_bh(&call->state_lock);
+ if (call->state <= RXRPC_CALL_COMPLETE &&
+ !test_and_set_bit(RXRPC_CALL_ACK, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+}
+
+/*
+ * propose an ACK be sent, locking the call structure
+ */
+void rxrpc_propose_ACK(struct rxrpc_call *call, uint8_t ack_reason,
+ __be32 serial, bool immediate)
+{
+ s8 prior = rxrpc_ack_priority[ack_reason];
+
+ if (prior > rxrpc_ack_priority[call->ackr_reason]) {
+ spin_lock_bh(&call->lock);
+ __rxrpc_propose_ACK(call, ack_reason, serial, immediate);
+ spin_unlock_bh(&call->lock);
+ }
+}
+
+/*
+ * set the resend timer
+ */
+static void rxrpc_set_resend(struct rxrpc_call *call, u8 resend,
+ unsigned long resend_at)
+{
+ read_lock_bh(&call->state_lock);
+ if (call->state >= RXRPC_CALL_COMPLETE)
+ resend = 0;
+
+ if (resend & 1) {
+ _debug("SET RESEND");
+ set_bit(RXRPC_CALL_RESEND, &call->events);
+ }
+
+ if (resend & 2) {
+ _debug("MODIFY RESEND TIMER");
+ set_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ mod_timer(&call->resend_timer, resend_at);
+ } else {
+ _debug("KILL RESEND TIMER");
+ del_timer_sync(&call->resend_timer);
+ clear_bit(RXRPC_CALL_RESEND_TIMER, &call->events);
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ }
+ read_unlock_bh(&call->state_lock);
+}
+
+/*
+ * resend packets
+ */
+static void rxrpc_resend(struct rxrpc_call *call)
+{
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_header *hdr;
+ struct sk_buff *txb;
+ unsigned long *p_txb, resend_at;
+ int loop, stop;
+ u8 resend;
+
+ _enter("{%d,%d,%d,%d},",
+ call->acks_hard, call->acks_unacked,
+ atomic_read(&call->sequence),
+ CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
+
+ stop = 0;
+ resend = 0;
+ resend_at = 0;
+
+ for (loop = call->acks_tail;
+ loop != call->acks_head || stop;
+ loop = (loop + 1) & (call->acks_winsz - 1)
+ ) {
+ p_txb = call->acks_window + loop;
+ smp_read_barrier_depends();
+ if (*p_txb & 1)
+ continue;
+
+ txb = (struct sk_buff *) *p_txb;
+ sp = rxrpc_skb(txb);
+
+ if (sp->need_resend) {
+ sp->need_resend = 0;
+
+ /* each Tx packet has a new serial number */
+ sp->hdr.serial =
+ htonl(atomic_inc_return(&call->conn->serial));
+
+ hdr = (struct rxrpc_header *) txb->head;
+ hdr->serial = sp->hdr.serial;
+
+ _proto("Tx DATA %%%u { #%d }",
+ ntohl(sp->hdr.serial), ntohl(sp->hdr.seq));
+ if (rxrpc_send_packet(call->conn->trans, txb) < 0) {
+ stop = 0;
+ sp->resend_at = jiffies + 3;
+ } else {
+ sp->resend_at =
+ jiffies + rxrpc_resend_timeout * HZ;
+ }
+ }
+
+ if (time_after_eq(jiffies + 1, sp->resend_at)) {
+ sp->need_resend = 1;
+ resend |= 1;
+ } else if (resend & 2) {
+ if (time_before(sp->resend_at, resend_at))
+ resend_at = sp->resend_at;
+ } else {
+ resend_at = sp->resend_at;
+ resend |= 2;
+ }
+ }
+
+ rxrpc_set_resend(call, resend, resend_at);
+ _leave("");
+}
+
+/*
+ * handle resend timer expiry
+ */
+static void rxrpc_resend_timer(struct rxrpc_call *call)
+{
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *txb;
+ unsigned long *p_txb, resend_at;
+ int loop;
+ u8 resend;
+
+ _enter("%d,%d,%d",
+ call->acks_tail, call->acks_unacked, call->acks_head);
+
+ resend = 0;
+ resend_at = 0;
+
+ for (loop = call->acks_unacked;
+ loop != call->acks_head;
+ loop = (loop + 1) & (call->acks_winsz - 1)
+ ) {
+ p_txb = call->acks_window + loop;
+ smp_read_barrier_depends();
+ txb = (struct sk_buff *) (*p_txb & ~1);
+ sp = rxrpc_skb(txb);
+
+ ASSERT(!(*p_txb & 1));
+
+ if (sp->need_resend) {
+ ;
+ } else if (time_after_eq(jiffies + 1, sp->resend_at)) {
+ sp->need_resend = 1;
+ resend |= 1;
+ } else if (resend & 2) {
+ if (time_before(sp->resend_at, resend_at))
+ resend_at = sp->resend_at;
+ } else {
+ resend_at = sp->resend_at;
+ resend |= 2;
+ }
+ }
+
+ rxrpc_set_resend(call, resend, resend_at);
+ _leave("");
+}
+
+/*
+ * process soft ACKs of our transmitted packets
+ * - these indicate packets the peer has or has not received, but hasn't yet
+ * given to the consumer, and so can still be discarded and re-requested
+ */
+static int rxrpc_process_soft_ACKs(struct rxrpc_call *call,
+ struct rxrpc_ackpacket *ack,
+ struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *txb;
+ unsigned long *p_txb, resend_at;
+ int loop;
+ u8 sacks[RXRPC_MAXACKS], resend;
+
+ _enter("{%d,%d},{%d},",
+ call->acks_hard,
+ CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz),
+ ack->nAcks);
+
+ if (skb_copy_bits(skb, 0, sacks, ack->nAcks) < 0)
+ goto protocol_error;
+
+ resend = 0;
+ resend_at = 0;
+ for (loop = 0; loop < ack->nAcks; loop++) {
+ p_txb = call->acks_window;
+ p_txb += (call->acks_tail + loop) & (call->acks_winsz - 1);
+ smp_read_barrier_depends();
+ txb = (struct sk_buff *) (*p_txb & ~1);
+ sp = rxrpc_skb(txb);
+
+ switch (sacks[loop]) {
+ case RXRPC_ACK_TYPE_ACK:
+ sp->need_resend = 0;
+ *p_txb |= 1;
+ break;
+ case RXRPC_ACK_TYPE_NACK:
+ sp->need_resend = 1;
+ *p_txb &= ~1;
+ resend = 1;
+ break;
+ default:
+ _debug("Unsupported ACK type %d", sacks[loop]);
+ goto protocol_error;
+ }
+ }
+
+ smp_mb();
+ call->acks_unacked = (call->acks_tail + loop) & (call->acks_winsz - 1);
+
+ /* anything not explicitly ACK'd is implicitly NACK'd, but may just not
+ * have been received or processed yet by the far end */
+ for (loop = call->acks_unacked;
+ loop != call->acks_head;
+ loop = (loop + 1) & (call->acks_winsz - 1)
+ ) {
+ p_txb = call->acks_window + loop;
+ smp_read_barrier_depends();
+ txb = (struct sk_buff *) (*p_txb & ~1);
+ sp = rxrpc_skb(txb);
+
+ if (*p_txb & 1) {
+ /* packet must have been discarded */
+ sp->need_resend = 1;
+ *p_txb &= ~1;
+ resend |= 1;
+ } else if (sp->need_resend) {
+ ;
+ } else if (time_after_eq(jiffies + 1, sp->resend_at)) {
+ sp->need_resend = 1;
+ resend |= 1;
+ } else if (resend & 2) {
+ if (time_before(sp->resend_at, resend_at))
+ resend_at = sp->resend_at;
+ } else {
+ resend_at = sp->resend_at;
+ resend |= 2;
+ }
+ }
+
+ rxrpc_set_resend(call, resend, resend_at);
+ _leave(" = 0");
+ return 0;
+
+protocol_error:
+ _leave(" = -EPROTO");
+ return -EPROTO;
+}
+
+/*
+ * discard hard-ACK'd packets from the Tx window
+ */
+static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard)
+{
+ struct rxrpc_skb_priv *sp;
+ unsigned long _skb;
+ int tail = call->acks_tail, old_tail;
+ int win = CIRC_CNT(call->acks_head, tail, call->acks_winsz);
+
+ _enter("{%u,%u},%u", call->acks_hard, win, hard);
+
+ ASSERTCMP(hard - call->acks_hard, <=, win);
+
+ while (call->acks_hard < hard) {
+ smp_read_barrier_depends();
+ _skb = call->acks_window[tail] & ~1;
+ sp = rxrpc_skb((struct sk_buff *) _skb);
+ rxrpc_free_skb((struct sk_buff *) _skb);
+ old_tail = tail;
+ tail = (tail + 1) & (call->acks_winsz - 1);
+ call->acks_tail = tail;
+ if (call->acks_unacked == old_tail)
+ call->acks_unacked = tail;
+ call->acks_hard++;
+ }
+
+ wake_up(&call->tx_waitq);
+}
+
+/*
+ * clear the Tx window in the event of a failure
+ */
+static void rxrpc_clear_tx_window(struct rxrpc_call *call)
+{
+ rxrpc_rotate_tx_window(call, atomic_read(&call->sequence));
+}
+
+/*
+ * drain the out of sequence received packet queue into the packet Rx queue
+ */
+static int rxrpc_drain_rx_oos_queue(struct rxrpc_call *call)
+{
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *skb;
+ bool terminal;
+ int ret;
+
+ _enter("{%d,%d}", call->rx_data_post, call->rx_first_oos);
+
+ spin_lock_bh(&call->lock);
+
+ ret = -ECONNRESET;
+ if (test_bit(RXRPC_CALL_RELEASED, &call->flags))
+ goto socket_unavailable;
+
+ skb = skb_dequeue(&call->rx_oos_queue);
+ if (skb) {
+ sp = rxrpc_skb(skb);
+
+ _debug("drain OOS packet %d [%d]",
+ ntohl(sp->hdr.seq), call->rx_first_oos);
+
+ if (ntohl(sp->hdr.seq) != call->rx_first_oos) {
+ skb_queue_head(&call->rx_oos_queue, skb);
+ call->rx_first_oos = ntohl(rxrpc_skb(skb)->hdr.seq);
+ _debug("requeue %p {%u}", skb, call->rx_first_oos);
+ } else {
+ skb->mark = RXRPC_SKB_MARK_DATA;
+ terminal = ((sp->hdr.flags & RXRPC_LAST_PACKET) &&
+ !(sp->hdr.flags & RXRPC_CLIENT_INITIATED));
+ ret = rxrpc_queue_rcv_skb(call, skb, true, terminal);
+ BUG_ON(ret < 0);
+ _debug("drain #%u", call->rx_data_post);
+ call->rx_data_post++;
+
+ /* find out what the next packet is */
+ skb = skb_peek(&call->rx_oos_queue);
+ if (skb)
+ call->rx_first_oos =
+ ntohl(rxrpc_skb(skb)->hdr.seq);
+ else
+ call->rx_first_oos = 0;
+ _debug("peek %p {%u}", skb, call->rx_first_oos);
+ }
+ }
+
+ ret = 0;
+socket_unavailable:
+ spin_unlock_bh(&call->lock);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * insert an out of sequence packet into the buffer
+ */
+static void rxrpc_insert_oos_packet(struct rxrpc_call *call,
+ struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp, *psp;
+ struct sk_buff *p;
+ u32 seq;
+
+ sp = rxrpc_skb(skb);
+ seq = ntohl(sp->hdr.seq);
+ _enter(",,{%u}", seq);
+
+ skb->destructor = rxrpc_packet_destructor;
+ ASSERTCMP(sp->call, ==, NULL);
+ sp->call = call;
+ rxrpc_get_call(call);
+
+ /* insert into the buffer in sequence order */
+ spin_lock_bh(&call->lock);
+
+ skb_queue_walk(&call->rx_oos_queue, p) {
+ psp = rxrpc_skb(p);
+ if (ntohl(psp->hdr.seq) > seq) {
+ _debug("insert oos #%u before #%u",
+ seq, ntohl(psp->hdr.seq));
+ skb_insert(p, skb, &call->rx_oos_queue);
+ goto inserted;
+ }
+ }
+
+ _debug("append oos #%u", seq);
+ skb_queue_tail(&call->rx_oos_queue, skb);
+inserted:
+
+ /* we might now have a new front to the queue */
+ if (call->rx_first_oos == 0 || seq < call->rx_first_oos)
+ call->rx_first_oos = seq;
+
+ read_lock(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ call->rx_data_post == call->rx_first_oos) {
+ _debug("drain rx oos now");
+ set_bit(RXRPC_CALL_DRAIN_RX_OOS, &call->events);
+ }
+ read_unlock(&call->state_lock);
+
+ spin_unlock_bh(&call->lock);
+ _leave(" [stored #%u]", call->rx_first_oos);
+}
+
+/*
+ * clear the Tx window on final ACK reception
+ */
+static void rxrpc_zap_tx_window(struct rxrpc_call *call)
+{
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *skb;
+ unsigned long _skb, *acks_window;
+ uint8_t winsz = call->acks_winsz;
+ int tail;
+
+ acks_window = call->acks_window;
+ call->acks_window = NULL;
+
+ while (CIRC_CNT(call->acks_head, call->acks_tail, winsz) > 0) {
+ tail = call->acks_tail;
+ smp_read_barrier_depends();
+ _skb = acks_window[tail] & ~1;
+ smp_mb();
+ call->acks_tail = (call->acks_tail + 1) & (winsz - 1);
+
+ skb = (struct sk_buff *) _skb;
+ sp = rxrpc_skb(skb);
+ _debug("+++ clear Tx %u", ntohl(sp->hdr.seq));
+ rxrpc_free_skb(skb);
+ }
+
+ kfree(acks_window);
+}
+
+/*
+ * process packets in the reception queue
+ */
+static int rxrpc_process_rx_queue(struct rxrpc_call *call,
+ u32 *_abort_code)
+{
+ struct rxrpc_ackpacket ack;
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *skb;
+ bool post_ACK;
+ int latest;
+ u32 hard, tx;
+
+ _enter("");
+
+process_further:
+ skb = skb_dequeue(&call->rx_queue);
+ if (!skb)
+ return -EAGAIN;
+
+ _net("deferred skb %p", skb);
+
+ sp = rxrpc_skb(skb);
+
+ _debug("process %s [st %d]", rxrpc_pkts[sp->hdr.type], call->state);
+
+ post_ACK = false;
+
+ switch (sp->hdr.type) {
+ /* data packets that wind up here have been received out of
+ * order, need security processing or are jumbo packets */
+ case RXRPC_PACKET_TYPE_DATA:
+ _proto("OOSQ DATA %%%u { #%u }",
+ ntohl(sp->hdr.serial), ntohl(sp->hdr.seq));
+
+ /* secured packets must be verified and possibly decrypted */
+ if (rxrpc_verify_packet(call, skb, _abort_code) < 0)
+ goto protocol_error;
+
+ rxrpc_insert_oos_packet(call, skb);
+ goto process_further;
+
+ /* partial ACK to process */
+ case RXRPC_PACKET_TYPE_ACK:
+ if (skb_copy_bits(skb, 0, &ack, sizeof(ack)) < 0) {
+ _debug("extraction failure");
+ goto protocol_error;
+ }
+ if (!skb_pull(skb, sizeof(ack)))
+ BUG();
+
+ latest = ntohl(sp->hdr.serial);
+ hard = ntohl(ack.firstPacket);
+ tx = atomic_read(&call->sequence);
+
+ _proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
+ latest,
+ ntohs(ack.maxSkew),
+ hard,
+ ntohl(ack.previousPacket),
+ ntohl(ack.serial),
+ rxrpc_acks[ack.reason],
+ ack.nAcks);
+
+ if (ack.reason == RXRPC_ACK_PING) {
+ _proto("Rx ACK %%%u PING Request", latest);
+ rxrpc_propose_ACK(call, RXRPC_ACK_PING_RESPONSE,
+ sp->hdr.serial, true);
+ }
+
+ /* discard any out-of-order or duplicate ACKs */
+ if (latest - call->acks_latest <= 0) {
+ _debug("discard ACK %d <= %d",
+ latest, call->acks_latest);
+ goto discard;
+ }
+ call->acks_latest = latest;
+
+ if (call->state != RXRPC_CALL_CLIENT_SEND_REQUEST &&
+ call->state != RXRPC_CALL_CLIENT_AWAIT_REPLY &&
+ call->state != RXRPC_CALL_SERVER_SEND_REPLY &&
+ call->state != RXRPC_CALL_SERVER_AWAIT_ACK)
+ goto discard;
+
+ _debug("Tx=%d H=%u S=%d", tx, call->acks_hard, call->state);
+
+ if (hard > 0) {
+ if (hard - 1 > tx) {
+ _debug("hard-ACK'd packet %d not transmitted"
+ " (%d top)",
+ hard - 1, tx);
+ goto protocol_error;
+ }
+
+ if ((call->state == RXRPC_CALL_CLIENT_AWAIT_REPLY ||
+ call->state == RXRPC_CALL_SERVER_AWAIT_ACK) &&
+ hard > tx)
+ goto all_acked;
+
+ smp_rmb();
+ rxrpc_rotate_tx_window(call, hard - 1);
+ }
+
+ if (ack.nAcks > 0) {
+ if (hard - 1 + ack.nAcks > tx) {
+ _debug("soft-ACK'd packet %d+%d not"
+ " transmitted (%d top)",
+ hard - 1, ack.nAcks, tx);
+ goto protocol_error;
+ }
+
+ if (rxrpc_process_soft_ACKs(call, &ack, skb) < 0)
+ goto protocol_error;
+ }
+ goto discard;
+
+ /* complete ACK to process */
+ case RXRPC_PACKET_TYPE_ACKALL:
+ goto all_acked;
+
+ /* abort and busy are handled elsewhere */
+ case RXRPC_PACKET_TYPE_BUSY:
+ case RXRPC_PACKET_TYPE_ABORT:
+ BUG();
+
+ /* connection level events - also handled elsewhere */
+ case RXRPC_PACKET_TYPE_CHALLENGE:
+ case RXRPC_PACKET_TYPE_RESPONSE:
+ case RXRPC_PACKET_TYPE_DEBUG:
+ BUG();
+ }
+
+ /* if we've had a hard ACK that covers all the packets we've sent, then
+ * that ends that phase of the operation */
+all_acked:
+ write_lock_bh(&call->state_lock);
+ _debug("ack all %d", call->state);
+
+ switch (call->state) {
+ case RXRPC_CALL_CLIENT_AWAIT_REPLY:
+ call->state = RXRPC_CALL_CLIENT_RECV_REPLY;
+ break;
+ case RXRPC_CALL_SERVER_AWAIT_ACK:
+ _debug("srv complete");
+ call->state = RXRPC_CALL_COMPLETE;
+ post_ACK = true;
+ break;
+ case RXRPC_CALL_CLIENT_SEND_REQUEST:
+ case RXRPC_CALL_SERVER_RECV_REQUEST:
+ goto protocol_error_unlock; /* can't occur yet */
+ default:
+ write_unlock_bh(&call->state_lock);
+ goto discard; /* assume packet left over from earlier phase */
+ }
+
+ write_unlock_bh(&call->state_lock);
+
+ /* if all the packets we sent are hard-ACK'd, then we can discard
+ * whatever we've got left */
+ _debug("clear Tx %d",
+ CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
+
+ del_timer_sync(&call->resend_timer);
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ clear_bit(RXRPC_CALL_RESEND_TIMER, &call->events);
+
+ if (call->acks_window)
+ rxrpc_zap_tx_window(call);
+
+ if (post_ACK) {
+ /* post the final ACK message for userspace to pick up */
+ _debug("post ACK");
+ skb->mark = RXRPC_SKB_MARK_FINAL_ACK;
+ sp->call = call;
+ rxrpc_get_call(call);
+ spin_lock_bh(&call->lock);
+ if (rxrpc_queue_rcv_skb(call, skb, true, true) < 0)
+ BUG();
+ spin_unlock_bh(&call->lock);
+ goto process_further;
+ }
+
+discard:
+ rxrpc_free_skb(skb);
+ goto process_further;
+
+protocol_error_unlock:
+ write_unlock_bh(&call->state_lock);
+protocol_error:
+ rxrpc_free_skb(skb);
+ _leave(" = -EPROTO");
+ return -EPROTO;
+}
+
+/*
+ * post a message to the socket Rx queue for recvmsg() to pick up
+ */
+static int rxrpc_post_message(struct rxrpc_call *call, u32 mark, u32 error,
+ bool fatal)
+{
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *skb;
+ int ret;
+
+ _enter("{%d,%lx},%u,%u,%d",
+ call->debug_id, call->flags, mark, error, fatal);
+
+ /* remove timers and things for fatal messages */
+ if (fatal) {
+ del_timer_sync(&call->resend_timer);
+ del_timer_sync(&call->ack_timer);
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ }
+
+ if (mark != RXRPC_SKB_MARK_NEW_CALL &&
+ !test_bit(RXRPC_CALL_HAS_USERID, &call->flags)) {
+ _leave("[no userid]");
+ return 0;
+ }
+
+ if (!test_bit(RXRPC_CALL_TERMINAL_MSG, &call->flags)) {
+ skb = alloc_skb(0, GFP_NOFS);
+ if (!skb)
+ return -ENOMEM;
+
+ rxrpc_new_skb(skb);
+
+ skb->mark = mark;
+
+ sp = rxrpc_skb(skb);
+ memset(sp, 0, sizeof(*sp));
+ sp->error = error;
+ sp->call = call;
+ rxrpc_get_call(call);
+
+ spin_lock_bh(&call->lock);
+ ret = rxrpc_queue_rcv_skb(call, skb, true, fatal);
+ spin_unlock_bh(&call->lock);
+ if (ret < 0)
+ BUG();
+ }
+
+ return 0;
+}
+
+/*
+ * handle background processing of incoming call packets and ACK / abort
+ * generation
+ */
+void rxrpc_process_call(struct work_struct *work)
+{
+ struct rxrpc_call *call =
+ container_of(work, struct rxrpc_call, processor);
+ struct rxrpc_ackpacket ack;
+ struct rxrpc_ackinfo ackinfo;
+ struct rxrpc_header hdr;
+ struct msghdr msg;
+ struct kvec iov[5];
+ unsigned long bits;
+ __be32 data;
+ size_t len;
+ int genbit, loop, nbit, ioc, ret;
+ u32 abort_code = RX_PROTOCOL_ERROR;
+ u8 *acks = NULL;
+
+ //printk("\n--------------------\n");
+ _enter("{%d,%s,%lx} [%lu]",
+ call->debug_id, rxrpc_call_states[call->state], call->events,
+ (jiffies - call->creation_jif) / (HZ / 10));
+
+ if (test_and_set_bit(RXRPC_CALL_PROC_BUSY, &call->flags)) {
+ _debug("XXXXXXXXXXXXX RUNNING ON MULTIPLE CPUS XXXXXXXXXXXXX");
+ return;
+ }
+
+ /* there's a good chance we're going to have to send a message, so set
+ * one up in advance */
+ msg.msg_name = &call->conn->trans->peer->srx.transport.sin;
+ msg.msg_namelen = sizeof(call->conn->trans->peer->srx.transport.sin);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ hdr.epoch = call->conn->epoch;
+ hdr.cid = call->cid;
+ hdr.callNumber = call->call_id;
+ hdr.seq = 0;
+ hdr.type = RXRPC_PACKET_TYPE_ACK;
+ hdr.flags = call->conn->out_clientflag;
+ hdr.userStatus = 0;
+ hdr.securityIndex = call->conn->security_ix;
+ hdr._rsvd = 0;
+ hdr.serviceId = call->conn->service_id;
+
+ memset(iov, 0, sizeof(iov));
+ iov[0].iov_base = &hdr;
+ iov[0].iov_len = sizeof(hdr);
+
+ /* deal with events of a final nature */
+ if (test_bit(RXRPC_CALL_RELEASE, &call->events)) {
+ rxrpc_release_call(call);
+ clear_bit(RXRPC_CALL_RELEASE, &call->events);
+ }
+
+ if (test_bit(RXRPC_CALL_RCVD_ERROR, &call->events)) {
+ int error;
+
+ clear_bit(RXRPC_CALL_CONN_ABORT, &call->events);
+ clear_bit(RXRPC_CALL_REJECT_BUSY, &call->events);
+ clear_bit(RXRPC_CALL_ABORT, &call->events);
+
+ error = call->conn->trans->peer->net_error;
+ _debug("post net error %d", error);
+
+ if (rxrpc_post_message(call, RXRPC_SKB_MARK_NET_ERROR,
+ error, true) < 0)
+ goto no_mem;
+ clear_bit(RXRPC_CALL_RCVD_ERROR, &call->events);
+ goto kill_ACKs;
+ }
+
+ if (test_bit(RXRPC_CALL_CONN_ABORT, &call->events)) {
+ ASSERTCMP(call->state, >, RXRPC_CALL_COMPLETE);
+
+ clear_bit(RXRPC_CALL_REJECT_BUSY, &call->events);
+ clear_bit(RXRPC_CALL_ABORT, &call->events);
+
+ _debug("post conn abort");
+
+ if (rxrpc_post_message(call, RXRPC_SKB_MARK_LOCAL_ERROR,
+ call->conn->error, true) < 0)
+ goto no_mem;
+ clear_bit(RXRPC_CALL_CONN_ABORT, &call->events);
+ goto kill_ACKs;
+ }
+
+ if (test_bit(RXRPC_CALL_REJECT_BUSY, &call->events)) {
+ hdr.type = RXRPC_PACKET_TYPE_BUSY;
+ genbit = RXRPC_CALL_REJECT_BUSY;
+ goto send_message;
+ }
+
+ if (test_bit(RXRPC_CALL_ABORT, &call->events)) {
+ ASSERTCMP(call->state, >, RXRPC_CALL_COMPLETE);
+
+ if (rxrpc_post_message(call, RXRPC_SKB_MARK_LOCAL_ERROR,
+ ECONNABORTED, true) < 0)
+ goto no_mem;
+ hdr.type = RXRPC_PACKET_TYPE_ABORT;
+ data = htonl(call->abort_code);
+ iov[1].iov_base = &data;
+ iov[1].iov_len = sizeof(data);
+ genbit = RXRPC_CALL_ABORT;
+ goto send_message;
+ }
+
+ if (test_bit(RXRPC_CALL_ACK_FINAL, &call->events)) {
+ hdr.type = RXRPC_PACKET_TYPE_ACKALL;
+ genbit = RXRPC_CALL_ACK_FINAL;
+ goto send_message;
+ }
+
+ if (call->events & ((1 << RXRPC_CALL_RCVD_BUSY) |
+ (1 << RXRPC_CALL_RCVD_ABORT))
+ ) {
+ u32 mark;
+
+ if (test_bit(RXRPC_CALL_RCVD_ABORT, &call->events))
+ mark = RXRPC_SKB_MARK_REMOTE_ABORT;
+ else
+ mark = RXRPC_SKB_MARK_BUSY;
+
+ _debug("post abort/busy");
+ rxrpc_clear_tx_window(call);
+ if (rxrpc_post_message(call, mark, ECONNABORTED, true) < 0)
+ goto no_mem;
+
+ clear_bit(RXRPC_CALL_RCVD_BUSY, &call->events);
+ clear_bit(RXRPC_CALL_RCVD_ABORT, &call->events);
+ goto kill_ACKs;
+ }
+
+ if (test_and_clear_bit(RXRPC_CALL_RCVD_ACKALL, &call->events)) {
+ _debug("do implicit ackall");
+ rxrpc_clear_tx_window(call);
+ }
+
+ if (test_bit(RXRPC_CALL_LIFE_TIMER, &call->events)) {
+ write_lock_bh(&call->state_lock);
+ if (call->state <= RXRPC_CALL_COMPLETE) {
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ call->abort_code = RX_CALL_TIMEOUT;
+ set_bit(RXRPC_CALL_ABORT, &call->events);
+ }
+ write_unlock_bh(&call->state_lock);
+
+ _debug("post timeout");
+ if (rxrpc_post_message(call, RXRPC_SKB_MARK_LOCAL_ERROR,
+ ETIME, true) < 0)
+ goto no_mem;
+
+ clear_bit(RXRPC_CALL_LIFE_TIMER, &call->events);
+ goto kill_ACKs;
+ }
+
+ /* deal with assorted inbound messages */
+ if (!skb_queue_empty(&call->rx_queue)) {
+ switch (rxrpc_process_rx_queue(call, &abort_code)) {
+ case 0:
+ case -EAGAIN:
+ break;
+ case -ENOMEM:
+ goto no_mem;
+ case -EKEYEXPIRED:
+ case -EKEYREJECTED:
+ case -EPROTO:
+ rxrpc_abort_call(call, abort_code);
+ goto kill_ACKs;
+ }
+ }
+
+ /* handle resending */
+ if (test_and_clear_bit(RXRPC_CALL_RESEND_TIMER, &call->events))
+ rxrpc_resend_timer(call);
+ if (test_and_clear_bit(RXRPC_CALL_RESEND, &call->events))
+ rxrpc_resend(call);
+
+ /* consider sending an ordinary ACK */
+ if (test_bit(RXRPC_CALL_ACK, &call->events)) {
+ __be32 pad;
+
+ _debug("send ACK: window: %d - %d { %lx }",
+ call->rx_data_eaten, call->ackr_win_top,
+ call->ackr_window[0]);
+
+ if (call->state > RXRPC_CALL_SERVER_ACK_REQUEST &&
+ call->ackr_reason != RXRPC_ACK_PING_RESPONSE) {
+ /* ACK by sending reply DATA packet in this state */
+ clear_bit(RXRPC_CALL_ACK, &call->events);
+ goto maybe_reschedule;
+ }
+
+ genbit = RXRPC_CALL_ACK;
+
+ acks = kzalloc(call->ackr_win_top - call->rx_data_eaten,
+ GFP_NOFS);
+ if (!acks)
+ goto no_mem;
+
+ //hdr.flags = RXRPC_SLOW_START_OK;
+ ack.bufferSpace = htons(8);
+ ack.maxSkew = 0;
+ ack.serial = 0;
+ ack.reason = 0;
+
+ ackinfo.rxMTU = htonl(5692);
+// ackinfo.rxMTU = htonl(call->conn->trans->peer->maxdata);
+ ackinfo.maxMTU = htonl(call->conn->trans->peer->maxdata);
+ ackinfo.rwind = htonl(32);
+ ackinfo.jumbo_max = htonl(4);
+
+ spin_lock_bh(&call->lock);
+ ack.reason = call->ackr_reason;
+ ack.serial = call->ackr_serial;
+ ack.previousPacket = call->ackr_prev_seq;
+ ack.firstPacket = htonl(call->rx_data_eaten + 1);
+
+ ack.nAcks = 0;
+ for (loop = 0; loop < RXRPC_ACKR_WINDOW_ASZ; loop++) {
+ nbit = loop * BITS_PER_LONG;
+ for (bits = call->ackr_window[loop]; bits; bits >>= 1
+ ) {
+ _debug("- l=%d n=%d b=%lx", loop, nbit, bits);
+ if (bits & 1) {
+ acks[nbit] = RXRPC_ACK_TYPE_ACK;
+ ack.nAcks = nbit + 1;
+ }
+ nbit++;
+ }
+ }
+ call->ackr_reason = 0;
+ spin_unlock_bh(&call->lock);
+
+ pad = 0;
+
+ iov[1].iov_base = &ack;
+ iov[1].iov_len = sizeof(ack);
+ iov[2].iov_base = acks;
+ iov[2].iov_len = ack.nAcks;
+ iov[3].iov_base = &pad;
+ iov[3].iov_len = 3;
+ iov[4].iov_base = &ackinfo;
+ iov[4].iov_len = sizeof(ackinfo);
+
+ switch (ack.reason) {
+ case RXRPC_ACK_REQUESTED:
+ case RXRPC_ACK_DUPLICATE:
+ case RXRPC_ACK_OUT_OF_SEQUENCE:
+ case RXRPC_ACK_EXCEEDS_WINDOW:
+ case RXRPC_ACK_NOSPACE:
+ case RXRPC_ACK_PING:
+ case RXRPC_ACK_PING_RESPONSE:
+ goto send_ACK_with_skew;
+ case RXRPC_ACK_DELAY:
+ case RXRPC_ACK_IDLE:
+ goto send_ACK;
+ }
+ }
+
+ /* handle completion of security negotiations on an incoming
+ * connection */
+ if (test_and_clear_bit(RXRPC_CALL_SECURED, &call->events)) {
+ _debug("secured");
+ spin_lock_bh(&call->lock);
+
+ if (call->state == RXRPC_CALL_SERVER_SECURING) {
+ _debug("securing");
+ write_lock(&call->conn->lock);
+ if (!test_bit(RXRPC_CALL_RELEASED, &call->flags) &&
+ !test_bit(RXRPC_CALL_RELEASE, &call->events)) {
+ _debug("not released");
+ call->state = RXRPC_CALL_SERVER_ACCEPTING;
+ list_move_tail(&call->accept_link,
+ &call->socket->acceptq);
+ }
+ write_unlock(&call->conn->lock);
+ read_lock(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE)
+ set_bit(RXRPC_CALL_POST_ACCEPT, &call->events);
+ read_unlock(&call->state_lock);
+ }
+
+ spin_unlock_bh(&call->lock);
+ if (!test_bit(RXRPC_CALL_POST_ACCEPT, &call->events))
+ goto maybe_reschedule;
+ }
+
+ /* post a notification of an acceptable connection to the app */
+ if (test_bit(RXRPC_CALL_POST_ACCEPT, &call->events)) {
+ _debug("post accept");
+ if (rxrpc_post_message(call, RXRPC_SKB_MARK_NEW_CALL,
+ 0, false) < 0)
+ goto no_mem;
+ clear_bit(RXRPC_CALL_POST_ACCEPT, &call->events);
+ goto maybe_reschedule;
+ }
+
+ /* handle incoming call acceptance */
+ if (test_and_clear_bit(RXRPC_CALL_ACCEPTED, &call->events)) {
+ _debug("accepted");
+ ASSERTCMP(call->rx_data_post, ==, 0);
+ call->rx_data_post = 1;
+ read_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE)
+ set_bit(RXRPC_CALL_DRAIN_RX_OOS, &call->events);
+ read_unlock_bh(&call->state_lock);
+ }
+
+ /* drain the out of sequence received packet queue into the packet Rx
+ * queue */
+ if (test_and_clear_bit(RXRPC_CALL_DRAIN_RX_OOS, &call->events)) {
+ while (call->rx_data_post == call->rx_first_oos)
+ if (rxrpc_drain_rx_oos_queue(call) < 0)
+ break;
+ goto maybe_reschedule;
+ }
+
+ /* other events may have been raised since we started checking */
+ goto maybe_reschedule;
+
+send_ACK_with_skew:
+ ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) -
+ ntohl(ack.serial));
+send_ACK:
+ hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
+ _proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
+ ntohl(hdr.serial),
+ ntohs(ack.maxSkew),
+ ntohl(ack.firstPacket),
+ ntohl(ack.previousPacket),
+ ntohl(ack.serial),
+ rxrpc_acks[ack.reason],
+ ack.nAcks);
+
+ del_timer_sync(&call->ack_timer);
+ if (ack.nAcks > 0)
+ set_bit(RXRPC_CALL_TX_SOFT_ACK, &call->flags);
+ goto send_message_2;
+
+send_message:
+ _debug("send message");
+
+ hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
+ _proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial));
+send_message_2:
+
+ len = iov[0].iov_len;
+ ioc = 1;
+ if (iov[4].iov_len) {
+ ioc = 5;
+ len += iov[4].iov_len;
+ len += iov[3].iov_len;
+ len += iov[2].iov_len;
+ len += iov[1].iov_len;
+ } else if (iov[3].iov_len) {
+ ioc = 4;
+ len += iov[3].iov_len;
+ len += iov[2].iov_len;
+ len += iov[1].iov_len;
+ } else if (iov[2].iov_len) {
+ ioc = 3;
+ len += iov[2].iov_len;
+ len += iov[1].iov_len;
+ } else if (iov[1].iov_len) {
+ ioc = 2;
+ len += iov[1].iov_len;
+ }
+
+ ret = kernel_sendmsg(call->conn->trans->local->socket,
+ &msg, iov, ioc, len);
+ if (ret < 0) {
+ _debug("sendmsg failed: %d", ret);
+ read_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_DEAD)
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+ goto error;
+ }
+
+ switch (genbit) {
+ case RXRPC_CALL_ABORT:
+ clear_bit(genbit, &call->events);
+ clear_bit(RXRPC_CALL_RCVD_ABORT, &call->events);
+ goto kill_ACKs;
+
+ case RXRPC_CALL_ACK_FINAL:
+ write_lock_bh(&call->state_lock);
+ if (call->state == RXRPC_CALL_CLIENT_FINAL_ACK)
+ call->state = RXRPC_CALL_COMPLETE;
+ write_unlock_bh(&call->state_lock);
+ goto kill_ACKs;
+
+ default:
+ clear_bit(genbit, &call->events);
+ switch (call->state) {
+ case RXRPC_CALL_CLIENT_AWAIT_REPLY:
+ case RXRPC_CALL_CLIENT_RECV_REPLY:
+ case RXRPC_CALL_SERVER_RECV_REQUEST:
+ case RXRPC_CALL_SERVER_ACK_REQUEST:
+ _debug("start ACK timer");
+ rxrpc_propose_ACK(call, RXRPC_ACK_DELAY,
+ call->ackr_serial, false);
+ default:
+ break;
+ }
+ goto maybe_reschedule;
+ }
+
+kill_ACKs:
+ del_timer_sync(&call->ack_timer);
+ if (test_and_clear_bit(RXRPC_CALL_ACK_FINAL, &call->events))
+ rxrpc_put_call(call);
+ clear_bit(RXRPC_CALL_ACK, &call->events);
+
+maybe_reschedule:
+ if (call->events || !skb_queue_empty(&call->rx_queue)) {
+ read_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_DEAD)
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+ }
+
+ /* don't leave aborted connections on the accept queue */
+ if (call->state >= RXRPC_CALL_COMPLETE &&
+ !list_empty(&call->accept_link)) {
+ _debug("X unlinking once-pending call %p { e=%lx f=%lx c=%x }",
+ call, call->events, call->flags,
+ ntohl(call->conn->cid));
+
+ read_lock_bh(&call->state_lock);
+ if (!test_bit(RXRPC_CALL_RELEASED, &call->flags) &&
+ !test_and_set_bit(RXRPC_CALL_RELEASE, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+ }
+
+error:
+ clear_bit(RXRPC_CALL_PROC_BUSY, &call->flags);
+ kfree(acks);
+
+ /* because we don't want two CPUs both processing the work item for one
+ * call at the same time, we use a flag to note when it's busy; however
+ * this means there's a race between clearing the flag and setting the
+ * work pending bit and the work item being processed again */
+ if (call->events && !work_pending(&call->processor)) {
+ _debug("jumpstart %x", ntohl(call->conn->cid));
+ rxrpc_queue_call(call);
+ }
+
+ _leave("");
+ return;
+
+no_mem:
+ _debug("out of memory");
+ goto maybe_reschedule;
+}
--- /dev/null
+/* RxRPC individual remote procedure call handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/circ_buf.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+struct kmem_cache *rxrpc_call_jar;
+LIST_HEAD(rxrpc_calls);
+DEFINE_RWLOCK(rxrpc_call_lock);
+static unsigned rxrpc_call_max_lifetime = 60;
+static unsigned rxrpc_dead_call_timeout = 2;
+
+static void rxrpc_destroy_call(struct work_struct *work);
+static void rxrpc_call_life_expired(unsigned long _call);
+static void rxrpc_dead_call_expired(unsigned long _call);
+static void rxrpc_ack_time_expired(unsigned long _call);
+static void rxrpc_resend_time_expired(unsigned long _call);
+
+/*
+ * allocate a new call
+ */
+static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp)
+{
+ struct rxrpc_call *call;
+
+ call = kmem_cache_zalloc(rxrpc_call_jar, gfp);
+ if (!call)
+ return NULL;
+
+ call->acks_winsz = 16;
+ call->acks_window = kmalloc(call->acks_winsz * sizeof(unsigned long),
+ gfp);
+ if (!call->acks_window) {
+ kmem_cache_free(rxrpc_call_jar, call);
+ return NULL;
+ }
+
+ setup_timer(&call->lifetimer, &rxrpc_call_life_expired,
+ (unsigned long) call);
+ setup_timer(&call->deadspan, &rxrpc_dead_call_expired,
+ (unsigned long) call);
+ setup_timer(&call->ack_timer, &rxrpc_ack_time_expired,
+ (unsigned long) call);
+ setup_timer(&call->resend_timer, &rxrpc_resend_time_expired,
+ (unsigned long) call);
+ INIT_WORK(&call->destroyer, &rxrpc_destroy_call);
+ INIT_WORK(&call->processor, &rxrpc_process_call);
+ INIT_LIST_HEAD(&call->accept_link);
+ skb_queue_head_init(&call->rx_queue);
+ skb_queue_head_init(&call->rx_oos_queue);
+ init_waitqueue_head(&call->tx_waitq);
+ spin_lock_init(&call->lock);
+ rwlock_init(&call->state_lock);
+ atomic_set(&call->usage, 1);
+ call->debug_id = atomic_inc_return(&rxrpc_debug_id);
+ call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;
+
+ memset(&call->sock_node, 0xed, sizeof(call->sock_node));
+
+ call->rx_data_expect = 1;
+ call->rx_data_eaten = 0;
+ call->rx_first_oos = 0;
+ call->ackr_win_top = call->rx_data_eaten + 1 + RXRPC_MAXACKS;
+ call->creation_jif = jiffies;
+ return call;
+}
+
+/*
+ * allocate a new client call and attempt to to get a connection slot for it
+ */
+static struct rxrpc_call *rxrpc_alloc_client_call(
+ struct rxrpc_sock *rx,
+ struct rxrpc_transport *trans,
+ struct rxrpc_conn_bundle *bundle,
+ gfp_t gfp)
+{
+ struct rxrpc_call *call;
+ int ret;
+
+ _enter("");
+
+ ASSERT(rx != NULL);
+ ASSERT(trans != NULL);
+ ASSERT(bundle != NULL);
+
+ call = rxrpc_alloc_call(gfp);
+ if (!call)
+ return ERR_PTR(-ENOMEM);
+
+ sock_hold(&rx->sk);
+ call->socket = rx;
+ call->rx_data_post = 1;
+
+ ret = rxrpc_connect_call(rx, trans, bundle, call, gfp);
+ if (ret < 0) {
+ kmem_cache_free(rxrpc_call_jar, call);
+ return ERR_PTR(ret);
+ }
+
+ spin_lock(&call->conn->trans->peer->lock);
+ list_add(&call->error_link, &call->conn->trans->peer->error_targets);
+ spin_unlock(&call->conn->trans->peer->lock);
+
+ call->lifetimer.expires = jiffies + rxrpc_call_max_lifetime * HZ;
+ add_timer(&call->lifetimer);
+
+ _leave(" = %p", call);
+ return call;
+}
+
+/*
+ * set up a call for the given data
+ * - called in process context with IRQs enabled
+ */
+struct rxrpc_call *rxrpc_get_client_call(struct rxrpc_sock *rx,
+ struct rxrpc_transport *trans,
+ struct rxrpc_conn_bundle *bundle,
+ unsigned long user_call_ID,
+ int create,
+ gfp_t gfp)
+{
+ struct rxrpc_call *call, *candidate;
+ struct rb_node *p, *parent, **pp;
+
+ _enter("%p,%d,%d,%lx,%d",
+ rx, trans ? trans->debug_id : -1, bundle ? bundle->debug_id : -1,
+ user_call_ID, create);
+
+ /* search the extant calls first for one that matches the specified
+ * user ID */
+ read_lock(&rx->call_lock);
+
+ p = rx->calls.rb_node;
+ while (p) {
+ call = rb_entry(p, struct rxrpc_call, sock_node);
+
+ if (user_call_ID < call->user_call_ID)
+ p = p->rb_left;
+ else if (user_call_ID > call->user_call_ID)
+ p = p->rb_right;
+ else
+ goto found_extant_call;
+ }
+
+ read_unlock(&rx->call_lock);
+
+ if (!create || !trans)
+ return ERR_PTR(-EBADSLT);
+
+ /* not yet present - create a candidate for a new record and then
+ * redo the search */
+ candidate = rxrpc_alloc_client_call(rx, trans, bundle, gfp);
+ if (IS_ERR(candidate)) {
+ _leave(" = %ld", PTR_ERR(candidate));
+ return candidate;
+ }
+
+ candidate->user_call_ID = user_call_ID;
+ __set_bit(RXRPC_CALL_HAS_USERID, &candidate->flags);
+
+ write_lock(&rx->call_lock);
+
+ pp = &rx->calls.rb_node;
+ parent = NULL;
+ while (*pp) {
+ parent = *pp;
+ call = rb_entry(parent, struct rxrpc_call, sock_node);
+
+ if (user_call_ID < call->user_call_ID)
+ pp = &(*pp)->rb_left;
+ else if (user_call_ID > call->user_call_ID)
+ pp = &(*pp)->rb_right;
+ else
+ goto found_extant_second;
+ }
+
+ /* second search also failed; add the new call */
+ call = candidate;
+ candidate = NULL;
+ rxrpc_get_call(call);
+
+ rb_link_node(&call->sock_node, parent, pp);
+ rb_insert_color(&call->sock_node, &rx->calls);
+ write_unlock(&rx->call_lock);
+
+ write_lock_bh(&rxrpc_call_lock);
+ list_add_tail(&call->link, &rxrpc_calls);
+ write_unlock_bh(&rxrpc_call_lock);
+
+ _net("CALL new %d on CONN %d", call->debug_id, call->conn->debug_id);
+
+ _leave(" = %p [new]", call);
+ return call;
+
+ /* we found the call in the list immediately */
+found_extant_call:
+ rxrpc_get_call(call);
+ read_unlock(&rx->call_lock);
+ _leave(" = %p [extant %d]", call, atomic_read(&call->usage));
+ return call;
+
+ /* we found the call on the second time through the list */
+found_extant_second:
+ rxrpc_get_call(call);
+ write_unlock(&rx->call_lock);
+ rxrpc_put_call(candidate);
+ _leave(" = %p [second %d]", call, atomic_read(&call->usage));
+ return call;
+}
+
+/*
+ * set up an incoming call
+ * - called in process context with IRQs enabled
+ */
+struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
+ struct rxrpc_connection *conn,
+ struct rxrpc_header *hdr,
+ gfp_t gfp)
+{
+ struct rxrpc_call *call, *candidate;
+ struct rb_node **p, *parent;
+ __be32 call_id;
+
+ _enter(",%d,,%x", conn->debug_id, gfp);
+
+ ASSERT(rx != NULL);
+
+ candidate = rxrpc_alloc_call(gfp);
+ if (!candidate)
+ return ERR_PTR(-EBUSY);
+
+ candidate->socket = rx;
+ candidate->conn = conn;
+ candidate->cid = hdr->cid;
+ candidate->call_id = hdr->callNumber;
+ candidate->channel = ntohl(hdr->cid) & RXRPC_CHANNELMASK;
+ candidate->rx_data_post = 0;
+ candidate->state = RXRPC_CALL_SERVER_ACCEPTING;
+ if (conn->security_ix > 0)
+ candidate->state = RXRPC_CALL_SERVER_SECURING;
+
+ write_lock_bh(&conn->lock);
+
+ /* set the channel for this call */
+ call = conn->channels[candidate->channel];
+ _debug("channel[%u] is %p", candidate->channel, call);
+ if (call && call->call_id == hdr->callNumber) {
+ /* already set; must've been a duplicate packet */
+ _debug("extant call [%d]", call->state);
+ ASSERTCMP(call->conn, ==, conn);
+
+ read_lock(&call->state_lock);
+ switch (call->state) {
+ case RXRPC_CALL_LOCALLY_ABORTED:
+ if (!test_and_set_bit(RXRPC_CALL_ABORT, &call->events))
+ rxrpc_queue_call(call);
+ case RXRPC_CALL_REMOTELY_ABORTED:
+ read_unlock(&call->state_lock);
+ goto aborted_call;
+ default:
+ rxrpc_get_call(call);
+ read_unlock(&call->state_lock);
+ goto extant_call;
+ }
+ }
+
+ if (call) {
+ /* it seems the channel is still in use from the previous call
+ * - ditch the old binding if its call is now complete */
+ _debug("CALL: %u { %s }",
+ call->debug_id, rxrpc_call_states[call->state]);
+
+ if (call->state >= RXRPC_CALL_COMPLETE) {
+ conn->channels[call->channel] = NULL;
+ } else {
+ write_unlock_bh(&conn->lock);
+ kmem_cache_free(rxrpc_call_jar, candidate);
+ _leave(" = -EBUSY");
+ return ERR_PTR(-EBUSY);
+ }
+ }
+
+ /* check the call number isn't duplicate */
+ _debug("check dup");
+ call_id = hdr->callNumber;
+ p = &conn->calls.rb_node;
+ parent = NULL;
+ while (*p) {
+ parent = *p;
+ call = rb_entry(parent, struct rxrpc_call, conn_node);
+
+ if (call_id < call->call_id)
+ p = &(*p)->rb_left;
+ else if (call_id > call->call_id)
+ p = &(*p)->rb_right;
+ else
+ goto old_call;
+ }
+
+ /* make the call available */
+ _debug("new call");
+ call = candidate;
+ candidate = NULL;
+ rb_link_node(&call->conn_node, parent, p);
+ rb_insert_color(&call->conn_node, &conn->calls);
+ conn->channels[call->channel] = call;
+ sock_hold(&rx->sk);
+ atomic_inc(&conn->usage);
+ write_unlock_bh(&conn->lock);
+
+ spin_lock(&conn->trans->peer->lock);
+ list_add(&call->error_link, &conn->trans->peer->error_targets);
+ spin_unlock(&conn->trans->peer->lock);
+
+ write_lock_bh(&rxrpc_call_lock);
+ list_add_tail(&call->link, &rxrpc_calls);
+ write_unlock_bh(&rxrpc_call_lock);
+
+ _net("CALL incoming %d on CONN %d", call->debug_id, call->conn->debug_id);
+
+ call->lifetimer.expires = jiffies + rxrpc_call_max_lifetime * HZ;
+ add_timer(&call->lifetimer);
+ _leave(" = %p {%d} [new]", call, call->debug_id);
+ return call;
+
+extant_call:
+ write_unlock_bh(&conn->lock);
+ kmem_cache_free(rxrpc_call_jar, candidate);
+ _leave(" = %p {%d} [extant]", call, call ? call->debug_id : -1);
+ return call;
+
+aborted_call:
+ write_unlock_bh(&conn->lock);
+ kmem_cache_free(rxrpc_call_jar, candidate);
+ _leave(" = -ECONNABORTED");
+ return ERR_PTR(-ECONNABORTED);
+
+old_call:
+ write_unlock_bh(&conn->lock);
+ kmem_cache_free(rxrpc_call_jar, candidate);
+ _leave(" = -ECONNRESET [old]");
+ return ERR_PTR(-ECONNRESET);
+}
+
+/*
+ * find an extant server call
+ * - called in process context with IRQs enabled
+ */
+struct rxrpc_call *rxrpc_find_server_call(struct rxrpc_sock *rx,
+ unsigned long user_call_ID)
+{
+ struct rxrpc_call *call;
+ struct rb_node *p;
+
+ _enter("%p,%lx", rx, user_call_ID);
+
+ /* search the extant calls for one that matches the specified user
+ * ID */
+ read_lock(&rx->call_lock);
+
+ p = rx->calls.rb_node;
+ while (p) {
+ call = rb_entry(p, struct rxrpc_call, sock_node);
+
+ if (user_call_ID < call->user_call_ID)
+ p = p->rb_left;
+ else if (user_call_ID > call->user_call_ID)
+ p = p->rb_right;
+ else
+ goto found_extant_call;
+ }
+
+ read_unlock(&rx->call_lock);
+ _leave(" = NULL");
+ return NULL;
+
+ /* we found the call in the list immediately */
+found_extant_call:
+ rxrpc_get_call(call);
+ read_unlock(&rx->call_lock);
+ _leave(" = %p [%d]", call, atomic_read(&call->usage));
+ return call;
+}
+
+/*
+ * detach a call from a socket and set up for release
+ */
+void rxrpc_release_call(struct rxrpc_call *call)
+{
+ struct rxrpc_connection *conn = call->conn;
+ struct rxrpc_sock *rx = call->socket;
+
+ _enter("{%d,%d,%d,%d}",
+ call->debug_id, atomic_read(&call->usage),
+ atomic_read(&call->ackr_not_idle),
+ call->rx_first_oos);
+
+ spin_lock_bh(&call->lock);
+ if (test_and_set_bit(RXRPC_CALL_RELEASED, &call->flags))
+ BUG();
+ spin_unlock_bh(&call->lock);
+
+ /* dissociate from the socket
+ * - the socket's ref on the call is passed to the death timer
+ */
+ _debug("RELEASE CALL %p (%d CONN %p)", call, call->debug_id, conn);
+
+ write_lock_bh(&rx->call_lock);
+ if (!list_empty(&call->accept_link)) {
+ _debug("unlinking once-pending call %p { e=%lx f=%lx }",
+ call, call->events, call->flags);
+ ASSERT(!test_bit(RXRPC_CALL_HAS_USERID, &call->flags));
+ list_del_init(&call->accept_link);
+ sk_acceptq_removed(&rx->sk);
+ } else if (test_bit(RXRPC_CALL_HAS_USERID, &call->flags)) {
+ rb_erase(&call->sock_node, &rx->calls);
+ memset(&call->sock_node, 0xdd, sizeof(call->sock_node));
+ clear_bit(RXRPC_CALL_HAS_USERID, &call->flags);
+ }
+ write_unlock_bh(&rx->call_lock);
+
+ /* free up the channel for reuse */
+ spin_lock(&conn->trans->client_lock);
+ write_lock_bh(&conn->lock);
+ write_lock(&call->state_lock);
+
+ if (conn->channels[call->channel] == call)
+ conn->channels[call->channel] = NULL;
+
+ if (conn->out_clientflag && conn->bundle) {
+ conn->avail_calls++;
+ switch (conn->avail_calls) {
+ case 1:
+ list_move_tail(&conn->bundle_link,
+ &conn->bundle->avail_conns);
+ case 2 ... RXRPC_MAXCALLS - 1:
+ ASSERT(conn->channels[0] == NULL ||
+ conn->channels[1] == NULL ||
+ conn->channels[2] == NULL ||
+ conn->channels[3] == NULL);
+ break;
+ case RXRPC_MAXCALLS:
+ list_move_tail(&conn->bundle_link,
+ &conn->bundle->unused_conns);
+ ASSERT(conn->channels[0] == NULL &&
+ conn->channels[1] == NULL &&
+ conn->channels[2] == NULL &&
+ conn->channels[3] == NULL);
+ break;
+ default:
+ printk(KERN_ERR "RxRPC: conn->avail_calls=%d\n",
+ conn->avail_calls);
+ BUG();
+ }
+ }
+
+ spin_unlock(&conn->trans->client_lock);
+
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ call->state != RXRPC_CALL_CLIENT_FINAL_ACK) {
+ _debug("+++ ABORTING STATE %d +++\n", call->state);
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ call->abort_code = RX_CALL_DEAD;
+ set_bit(RXRPC_CALL_ABORT, &call->events);
+ rxrpc_queue_call(call);
+ }
+ write_unlock(&call->state_lock);
+ write_unlock_bh(&conn->lock);
+
+ /* clean up the Rx queue */
+ if (!skb_queue_empty(&call->rx_queue) ||
+ !skb_queue_empty(&call->rx_oos_queue)) {
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *skb;
+
+ _debug("purge Rx queues");
+
+ spin_lock_bh(&call->lock);
+ while ((skb = skb_dequeue(&call->rx_queue)) ||
+ (skb = skb_dequeue(&call->rx_oos_queue))) {
+ sp = rxrpc_skb(skb);
+ if (sp->call) {
+ ASSERTCMP(sp->call, ==, call);
+ rxrpc_put_call(call);
+ sp->call = NULL;
+ }
+ skb->destructor = NULL;
+ spin_unlock_bh(&call->lock);
+
+ _debug("- zap %s %%%u #%u",
+ rxrpc_pkts[sp->hdr.type],
+ ntohl(sp->hdr.serial),
+ ntohl(sp->hdr.seq));
+ rxrpc_free_skb(skb);
+ spin_lock_bh(&call->lock);
+ }
+ spin_unlock_bh(&call->lock);
+
+ ASSERTCMP(call->state, !=, RXRPC_CALL_COMPLETE);
+ }
+
+ del_timer_sync(&call->resend_timer);
+ del_timer_sync(&call->ack_timer);
+ del_timer_sync(&call->lifetimer);
+ call->deadspan.expires = jiffies + rxrpc_dead_call_timeout * HZ;
+ add_timer(&call->deadspan);
+
+ _leave("");
+}
+
+/*
+ * handle a dead call being ready for reaping
+ */
+static void rxrpc_dead_call_expired(unsigned long _call)
+{
+ struct rxrpc_call *call = (struct rxrpc_call *) _call;
+
+ _enter("{%d}", call->debug_id);
+
+ write_lock_bh(&call->state_lock);
+ call->state = RXRPC_CALL_DEAD;
+ write_unlock_bh(&call->state_lock);
+ rxrpc_put_call(call);
+}
+
+/*
+ * mark a call as to be released, aborting it if it's still in progress
+ * - called with softirqs disabled
+ */
+static void rxrpc_mark_call_released(struct rxrpc_call *call)
+{
+ bool sched;
+
+ write_lock(&call->state_lock);
+ if (call->state < RXRPC_CALL_DEAD) {
+ sched = false;
+ if (call->state < RXRPC_CALL_COMPLETE) {
+ _debug("abort call %p", call);
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ call->abort_code = RX_CALL_DEAD;
+ if (!test_and_set_bit(RXRPC_CALL_ABORT, &call->events))
+ sched = true;
+ }
+ if (!test_and_set_bit(RXRPC_CALL_RELEASE, &call->events))
+ sched = true;
+ if (sched)
+ rxrpc_queue_call(call);
+ }
+ write_unlock(&call->state_lock);
+}
+
+/*
+ * release all the calls associated with a socket
+ */
+void rxrpc_release_calls_on_socket(struct rxrpc_sock *rx)
+{
+ struct rxrpc_call *call;
+ struct rb_node *p;
+
+ _enter("%p", rx);
+
+ read_lock_bh(&rx->call_lock);
+
+ /* mark all the calls as no longer wanting incoming packets */
+ for (p = rb_first(&rx->calls); p; p = rb_next(p)) {
+ call = rb_entry(p, struct rxrpc_call, sock_node);
+ rxrpc_mark_call_released(call);
+ }
+
+ /* kill the not-yet-accepted incoming calls */
+ list_for_each_entry(call, &rx->secureq, accept_link) {
+ rxrpc_mark_call_released(call);
+ }
+
+ list_for_each_entry(call, &rx->acceptq, accept_link) {
+ rxrpc_mark_call_released(call);
+ }
+
+ read_unlock_bh(&rx->call_lock);
+ _leave("");
+}
+
+/*
+ * release a call
+ */
+void __rxrpc_put_call(struct rxrpc_call *call)
+{
+ ASSERT(call != NULL);
+
+ _enter("%p{u=%d}", call, atomic_read(&call->usage));
+
+ ASSERTCMP(atomic_read(&call->usage), >, 0);
+
+ if (atomic_dec_and_test(&call->usage)) {
+ _debug("call %d dead", call->debug_id);
+ ASSERTCMP(call->state, ==, RXRPC_CALL_DEAD);
+ rxrpc_queue_work(&call->destroyer);
+ }
+ _leave("");
+}
+
+/*
+ * clean up a call
+ */
+static void rxrpc_cleanup_call(struct rxrpc_call *call)
+{
+ _net("DESTROY CALL %d", call->debug_id);
+
+ ASSERT(call->socket);
+
+ memset(&call->sock_node, 0xcd, sizeof(call->sock_node));
+
+ del_timer_sync(&call->lifetimer);
+ del_timer_sync(&call->deadspan);
+ del_timer_sync(&call->ack_timer);
+ del_timer_sync(&call->resend_timer);
+
+ ASSERT(test_bit(RXRPC_CALL_RELEASED, &call->flags));
+ ASSERTCMP(call->events, ==, 0);
+ if (work_pending(&call->processor)) {
+ _debug("defer destroy");
+ rxrpc_queue_work(&call->destroyer);
+ return;
+ }
+
+ if (call->conn) {
+ spin_lock(&call->conn->trans->peer->lock);
+ list_del(&call->error_link);
+ spin_unlock(&call->conn->trans->peer->lock);
+
+ write_lock_bh(&call->conn->lock);
+ rb_erase(&call->conn_node, &call->conn->calls);
+ write_unlock_bh(&call->conn->lock);
+ rxrpc_put_connection(call->conn);
+ }
+
+ if (call->acks_window) {
+ _debug("kill Tx window %d",
+ CIRC_CNT(call->acks_head, call->acks_tail,
+ call->acks_winsz));
+ smp_mb();
+ while (CIRC_CNT(call->acks_head, call->acks_tail,
+ call->acks_winsz) > 0) {
+ struct rxrpc_skb_priv *sp;
+ unsigned long _skb;
+
+ _skb = call->acks_window[call->acks_tail] & ~1;
+ sp = rxrpc_skb((struct sk_buff *) _skb);
+ _debug("+++ clear Tx %u", ntohl(sp->hdr.seq));
+ rxrpc_free_skb((struct sk_buff *) _skb);
+ call->acks_tail =
+ (call->acks_tail + 1) & (call->acks_winsz - 1);
+ }
+
+ kfree(call->acks_window);
+ }
+
+ rxrpc_free_skb(call->tx_pending);
+
+ rxrpc_purge_queue(&call->rx_queue);
+ ASSERT(skb_queue_empty(&call->rx_oos_queue));
+ sock_put(&call->socket->sk);
+ kmem_cache_free(rxrpc_call_jar, call);
+}
+
+/*
+ * destroy a call
+ */
+static void rxrpc_destroy_call(struct work_struct *work)
+{
+ struct rxrpc_call *call =
+ container_of(work, struct rxrpc_call, destroyer);
+
+ _enter("%p{%d,%d,%p}",
+ call, atomic_read(&call->usage), call->channel, call->conn);
+
+ ASSERTCMP(call->state, ==, RXRPC_CALL_DEAD);
+
+ write_lock_bh(&rxrpc_call_lock);
+ list_del_init(&call->link);
+ write_unlock_bh(&rxrpc_call_lock);
+
+ rxrpc_cleanup_call(call);
+ _leave("");
+}
+
+/*
+ * preemptively destroy all the call records from a transport endpoint rather
+ * than waiting for them to time out
+ */
+void __exit rxrpc_destroy_all_calls(void)
+{
+ struct rxrpc_call *call;
+
+ _enter("");
+ write_lock_bh(&rxrpc_call_lock);
+
+ while (!list_empty(&rxrpc_calls)) {
+ call = list_entry(rxrpc_calls.next, struct rxrpc_call, link);
+ _debug("Zapping call %p", call);
+
+ list_del_init(&call->link);
+
+ switch (atomic_read(&call->usage)) {
+ case 0:
+ ASSERTCMP(call->state, ==, RXRPC_CALL_DEAD);
+ break;
+ case 1:
+ if (del_timer_sync(&call->deadspan) != 0 &&
+ call->state != RXRPC_CALL_DEAD)
+ rxrpc_dead_call_expired((unsigned long) call);
+ if (call->state != RXRPC_CALL_DEAD)
+ break;
+ default:
+ printk(KERN_ERR "RXRPC:"
+ " Call %p still in use (%d,%d,%s,%lx,%lx)!\n",
+ call, atomic_read(&call->usage),
+ atomic_read(&call->ackr_not_idle),
+ rxrpc_call_states[call->state],
+ call->flags, call->events);
+ if (!skb_queue_empty(&call->rx_queue))
+ printk(KERN_ERR"RXRPC: Rx queue occupied\n");
+ if (!skb_queue_empty(&call->rx_oos_queue))
+ printk(KERN_ERR"RXRPC: OOS queue occupied\n");
+ break;
+ }
+
+ write_unlock_bh(&rxrpc_call_lock);
+ cond_resched();
+ write_lock_bh(&rxrpc_call_lock);
+ }
+
+ write_unlock_bh(&rxrpc_call_lock);
+ _leave("");
+}
+
+/*
+ * handle call lifetime being exceeded
+ */
+static void rxrpc_call_life_expired(unsigned long _call)
+{
+ struct rxrpc_call *call = (struct rxrpc_call *) _call;
+
+ if (call->state >= RXRPC_CALL_COMPLETE)
+ return;
+
+ _enter("{%d}", call->debug_id);
+ read_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE) {
+ set_bit(RXRPC_CALL_LIFE_TIMER, &call->events);
+ rxrpc_queue_call(call);
+ }
+ read_unlock_bh(&call->state_lock);
+}
+
+/*
+ * handle resend timer expiry
+ */
+static void rxrpc_resend_time_expired(unsigned long _call)
+{
+ struct rxrpc_call *call = (struct rxrpc_call *) _call;
+
+ _enter("{%d}", call->debug_id);
+
+ if (call->state >= RXRPC_CALL_COMPLETE)
+ return;
+
+ read_lock_bh(&call->state_lock);
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ !test_and_set_bit(RXRPC_CALL_RESEND_TIMER, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+}
+
+/*
+ * handle ACK timer expiry
+ */
+static void rxrpc_ack_time_expired(unsigned long _call)
+{
+ struct rxrpc_call *call = (struct rxrpc_call *) _call;
+
+ _enter("{%d}", call->debug_id);
+
+ if (call->state >= RXRPC_CALL_COMPLETE)
+ return;
+
+ read_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ !test_and_set_bit(RXRPC_CALL_ACK, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+}
--- /dev/null
+/* RxRPC virtual connection handler
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/crypto.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static void rxrpc_connection_reaper(struct work_struct *work);
+
+LIST_HEAD(rxrpc_connections);
+DEFINE_RWLOCK(rxrpc_connection_lock);
+static unsigned long rxrpc_connection_timeout = 10 * 60;
+static DECLARE_DELAYED_WORK(rxrpc_connection_reap, rxrpc_connection_reaper);
+
+/*
+ * allocate a new client connection bundle
+ */
+static struct rxrpc_conn_bundle *rxrpc_alloc_bundle(gfp_t gfp)
+{
+ struct rxrpc_conn_bundle *bundle;
+
+ _enter("");
+
+ bundle = kzalloc(sizeof(struct rxrpc_conn_bundle), gfp);
+ if (bundle) {
+ INIT_LIST_HEAD(&bundle->unused_conns);
+ INIT_LIST_HEAD(&bundle->avail_conns);
+ INIT_LIST_HEAD(&bundle->busy_conns);
+ init_waitqueue_head(&bundle->chanwait);
+ atomic_set(&bundle->usage, 1);
+ }
+
+ _leave(" = %p", bundle);
+ return bundle;
+}
+
+/*
+ * compare bundle parameters with what we're looking for
+ * - return -ve, 0 or +ve
+ */
+static inline
+int rxrpc_cmp_bundle(const struct rxrpc_conn_bundle *bundle,
+ struct key *key, __be16 service_id)
+{
+ return (bundle->service_id - service_id) ?:
+ ((unsigned long) bundle->key - (unsigned long) key);
+}
+
+/*
+ * get bundle of client connections that a client socket can make use of
+ */
+struct rxrpc_conn_bundle *rxrpc_get_bundle(struct rxrpc_sock *rx,
+ struct rxrpc_transport *trans,
+ struct key *key,
+ __be16 service_id,
+ gfp_t gfp)
+{
+ struct rxrpc_conn_bundle *bundle, *candidate;
+ struct rb_node *p, *parent, **pp;
+
+ _enter("%p{%x},%x,%hx,",
+ rx, key_serial(key), trans->debug_id, ntohl(service_id));
+
+ if (rx->trans == trans && rx->bundle) {
+ atomic_inc(&rx->bundle->usage);
+ return rx->bundle;
+ }
+
+ /* search the extant bundles first for one that matches the specified
+ * user ID */
+ spin_lock(&trans->client_lock);
+
+ p = trans->bundles.rb_node;
+ while (p) {
+ bundle = rb_entry(p, struct rxrpc_conn_bundle, node);
+
+ if (rxrpc_cmp_bundle(bundle, key, service_id) < 0)
+ p = p->rb_left;
+ else if (rxrpc_cmp_bundle(bundle, key, service_id) > 0)
+ p = p->rb_right;
+ else
+ goto found_extant_bundle;
+ }
+
+ spin_unlock(&trans->client_lock);
+
+ /* not yet present - create a candidate for a new record and then
+ * redo the search */
+ candidate = rxrpc_alloc_bundle(gfp);
+ if (!candidate) {
+ _leave(" = -ENOMEM");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ candidate->key = key_get(key);
+ candidate->service_id = service_id;
+
+ spin_lock(&trans->client_lock);
+
+ pp = &trans->bundles.rb_node;
+ parent = NULL;
+ while (*pp) {
+ parent = *pp;
+ bundle = rb_entry(parent, struct rxrpc_conn_bundle, node);
+
+ if (rxrpc_cmp_bundle(bundle, key, service_id) < 0)
+ pp = &(*pp)->rb_left;
+ else if (rxrpc_cmp_bundle(bundle, key, service_id) > 0)
+ pp = &(*pp)->rb_right;
+ else
+ goto found_extant_second;
+ }
+
+ /* second search also failed; add the new bundle */
+ bundle = candidate;
+ candidate = NULL;
+
+ rb_link_node(&bundle->node, parent, pp);
+ rb_insert_color(&bundle->node, &trans->bundles);
+ spin_unlock(&trans->client_lock);
+ _net("BUNDLE new on trans %d", trans->debug_id);
+ if (!rx->bundle && rx->sk.sk_state == RXRPC_CLIENT_CONNECTED) {
+ atomic_inc(&bundle->usage);
+ rx->bundle = bundle;
+ }
+ _leave(" = %p [new]", bundle);
+ return bundle;
+
+ /* we found the bundle in the list immediately */
+found_extant_bundle:
+ atomic_inc(&bundle->usage);
+ spin_unlock(&trans->client_lock);
+ _net("BUNDLE old on trans %d", trans->debug_id);
+ if (!rx->bundle && rx->sk.sk_state == RXRPC_CLIENT_CONNECTED) {
+ atomic_inc(&bundle->usage);
+ rx->bundle = bundle;
+ }
+ _leave(" = %p [extant %d]", bundle, atomic_read(&bundle->usage));
+ return bundle;
+
+ /* we found the bundle on the second time through the list */
+found_extant_second:
+ atomic_inc(&bundle->usage);
+ spin_unlock(&trans->client_lock);
+ kfree(candidate);
+ _net("BUNDLE old2 on trans %d", trans->debug_id);
+ if (!rx->bundle && rx->sk.sk_state == RXRPC_CLIENT_CONNECTED) {
+ atomic_inc(&bundle->usage);
+ rx->bundle = bundle;
+ }
+ _leave(" = %p [second %d]", bundle, atomic_read(&bundle->usage));
+ return bundle;
+}
+
+/*
+ * release a bundle
+ */
+void rxrpc_put_bundle(struct rxrpc_transport *trans,
+ struct rxrpc_conn_bundle *bundle)
+{
+ _enter("%p,%p{%d}",trans, bundle, atomic_read(&bundle->usage));
+
+ if (atomic_dec_and_lock(&bundle->usage, &trans->client_lock)) {
+ _debug("Destroy bundle");
+ rb_erase(&bundle->node, &trans->bundles);
+ spin_unlock(&trans->client_lock);
+ ASSERT(list_empty(&bundle->unused_conns));
+ ASSERT(list_empty(&bundle->avail_conns));
+ ASSERT(list_empty(&bundle->busy_conns));
+ ASSERTCMP(bundle->num_conns, ==, 0);
+ key_put(bundle->key);
+ kfree(bundle);
+ }
+
+ _leave("");
+}
+
+/*
+ * allocate a new connection
+ */
+static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
+{
+ struct rxrpc_connection *conn;
+
+ _enter("");
+
+ conn = kzalloc(sizeof(struct rxrpc_connection), gfp);
+ if (conn) {
+ INIT_WORK(&conn->processor, &rxrpc_process_connection);
+ INIT_LIST_HEAD(&conn->bundle_link);
+ conn->calls = RB_ROOT;
+ skb_queue_head_init(&conn->rx_queue);
+ rwlock_init(&conn->lock);
+ spin_lock_init(&conn->state_lock);
+ atomic_set(&conn->usage, 1);
+ conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
+ conn->avail_calls = RXRPC_MAXCALLS;
+ conn->size_align = 4;
+ conn->header_size = sizeof(struct rxrpc_header);
+ }
+
+ _leave(" = %p{%d}", conn, conn->debug_id);
+ return conn;
+}
+
+/*
+ * assign a connection ID to a connection and add it to the transport's
+ * connection lookup tree
+ * - called with transport client lock held
+ */
+static void rxrpc_assign_connection_id(struct rxrpc_connection *conn)
+{
+ struct rxrpc_connection *xconn;
+ struct rb_node *parent, **p;
+ __be32 epoch;
+ u32 real_conn_id;
+
+ _enter("");
+
+ epoch = conn->epoch;
+
+ write_lock_bh(&conn->trans->conn_lock);
+
+ conn->trans->conn_idcounter += RXRPC_CID_INC;
+ if (conn->trans->conn_idcounter < RXRPC_CID_INC)
+ conn->trans->conn_idcounter = RXRPC_CID_INC;
+ real_conn_id = conn->trans->conn_idcounter;
+
+attempt_insertion:
+ parent = NULL;
+ p = &conn->trans->client_conns.rb_node;
+
+ while (*p) {
+ parent = *p;
+ xconn = rb_entry(parent, struct rxrpc_connection, node);
+
+ if (epoch < xconn->epoch)
+ p = &(*p)->rb_left;
+ else if (epoch > xconn->epoch)
+ p = &(*p)->rb_right;
+ else if (real_conn_id < xconn->real_conn_id)
+ p = &(*p)->rb_left;
+ else if (real_conn_id > xconn->real_conn_id)
+ p = &(*p)->rb_right;
+ else
+ goto id_exists;
+ }
+
+ /* we've found a suitable hole - arrange for this connection to occupy
+ * it */
+ rb_link_node(&conn->node, parent, p);
+ rb_insert_color(&conn->node, &conn->trans->client_conns);
+
+ conn->real_conn_id = real_conn_id;
+ conn->cid = htonl(real_conn_id);
+ write_unlock_bh(&conn->trans->conn_lock);
+ _leave(" [CONNID %x CID %x]", real_conn_id, ntohl(conn->cid));
+ return;
+
+ /* we found a connection with the proposed ID - walk the tree from that
+ * point looking for the next unused ID */
+id_exists:
+ for (;;) {
+ real_conn_id += RXRPC_CID_INC;
+ if (real_conn_id < RXRPC_CID_INC) {
+ real_conn_id = RXRPC_CID_INC;
+ conn->trans->conn_idcounter = real_conn_id;
+ goto attempt_insertion;
+ }
+
+ parent = rb_next(parent);
+ if (!parent)
+ goto attempt_insertion;
+
+ xconn = rb_entry(parent, struct rxrpc_connection, node);
+ if (epoch < xconn->epoch ||
+ real_conn_id < xconn->real_conn_id)
+ goto attempt_insertion;
+ }
+}
+
+/*
+ * add a call to a connection's call-by-ID tree
+ */
+static void rxrpc_add_call_ID_to_conn(struct rxrpc_connection *conn,
+ struct rxrpc_call *call)
+{
+ struct rxrpc_call *xcall;
+ struct rb_node *parent, **p;
+ __be32 call_id;
+
+ write_lock_bh(&conn->lock);
+
+ call_id = call->call_id;
+ p = &conn->calls.rb_node;
+ parent = NULL;
+ while (*p) {
+ parent = *p;
+ xcall = rb_entry(parent, struct rxrpc_call, conn_node);
+
+ if (call_id < xcall->call_id)
+ p = &(*p)->rb_left;
+ else if (call_id > xcall->call_id)
+ p = &(*p)->rb_right;
+ else
+ BUG();
+ }
+
+ rb_link_node(&call->conn_node, parent, p);
+ rb_insert_color(&call->conn_node, &conn->calls);
+
+ write_unlock_bh(&conn->lock);
+}
+
+/*
+ * connect a call on an exclusive connection
+ */
+static int rxrpc_connect_exclusive(struct rxrpc_sock *rx,
+ struct rxrpc_transport *trans,
+ __be16 service_id,
+ struct rxrpc_call *call,
+ gfp_t gfp)
+{
+ struct rxrpc_connection *conn;
+ int chan, ret;
+
+ _enter("");
+
+ conn = rx->conn;
+ if (!conn) {
+ /* not yet present - create a candidate for a new connection
+ * and then redo the check */
+ conn = rxrpc_alloc_connection(gfp);
+ if (IS_ERR(conn)) {
+ _leave(" = %ld", PTR_ERR(conn));
+ return PTR_ERR(conn);
+ }
+
+ conn->trans = trans;
+ conn->bundle = NULL;
+ conn->service_id = service_id;
+ conn->epoch = rxrpc_epoch;
+ conn->in_clientflag = 0;
+ conn->out_clientflag = RXRPC_CLIENT_INITIATED;
+ conn->cid = 0;
+ conn->state = RXRPC_CONN_CLIENT;
+ conn->avail_calls = RXRPC_MAXCALLS - 1;
+ conn->security_level = rx->min_sec_level;
+ conn->key = key_get(rx->key);
+
+ ret = rxrpc_init_client_conn_security(conn);
+ if (ret < 0) {
+ key_put(conn->key);
+ kfree(conn);
+ _leave(" = %d [key]", ret);
+ return ret;
+ }
+
+ write_lock_bh(&rxrpc_connection_lock);
+ list_add_tail(&conn->link, &rxrpc_connections);
+ write_unlock_bh(&rxrpc_connection_lock);
+
+ spin_lock(&trans->client_lock);
+ atomic_inc(&trans->usage);
+
+ _net("CONNECT EXCL new %d on TRANS %d",
+ conn->debug_id, conn->trans->debug_id);
+
+ rxrpc_assign_connection_id(conn);
+ rx->conn = conn;
+ }
+
+ /* we've got a connection with a free channel and we can now attach the
+ * call to it
+ * - we're holding the transport's client lock
+ * - we're holding a reference on the connection
+ */
+ for (chan = 0; chan < RXRPC_MAXCALLS; chan++)
+ if (!conn->channels[chan])
+ goto found_channel;
+ goto no_free_channels;
+
+found_channel:
+ atomic_inc(&conn->usage);
+ conn->channels[chan] = call;
+ call->conn = conn;
+ call->channel = chan;
+ call->cid = conn->cid | htonl(chan);
+ call->call_id = htonl(++conn->call_counter);
+
+ _net("CONNECT client on conn %d chan %d as call %x",
+ conn->debug_id, chan, ntohl(call->call_id));
+
+ spin_unlock(&trans->client_lock);
+
+ rxrpc_add_call_ID_to_conn(conn, call);
+ _leave(" = 0");
+ return 0;
+
+no_free_channels:
+ spin_unlock(&trans->client_lock);
+ _leave(" = -ENOSR");
+ return -ENOSR;
+}
+
+/*
+ * find a connection for a call
+ * - called in process context with IRQs enabled
+ */
+int rxrpc_connect_call(struct rxrpc_sock *rx,
+ struct rxrpc_transport *trans,
+ struct rxrpc_conn_bundle *bundle,
+ struct rxrpc_call *call,
+ gfp_t gfp)
+{
+ struct rxrpc_connection *conn, *candidate;
+ int chan, ret;
+
+ DECLARE_WAITQUEUE(myself, current);
+
+ _enter("%p,%lx,", rx, call->user_call_ID);
+
+ if (test_bit(RXRPC_SOCK_EXCLUSIVE_CONN, &rx->flags))
+ return rxrpc_connect_exclusive(rx, trans, bundle->service_id,
+ call, gfp);
+
+ spin_lock(&trans->client_lock);
+ for (;;) {
+ /* see if the bundle has a call slot available */
+ if (!list_empty(&bundle->avail_conns)) {
+ _debug("avail");
+ conn = list_entry(bundle->avail_conns.next,
+ struct rxrpc_connection,
+ bundle_link);
+ if (--conn->avail_calls == 0)
+ list_move(&conn->bundle_link,
+ &bundle->busy_conns);
+ ASSERTCMP(conn->avail_calls, <, RXRPC_MAXCALLS);
+ ASSERT(conn->channels[0] == NULL ||
+ conn->channels[1] == NULL ||
+ conn->channels[2] == NULL ||
+ conn->channels[3] == NULL);
+ atomic_inc(&conn->usage);
+ break;
+ }
+
+ if (!list_empty(&bundle->unused_conns)) {
+ _debug("unused");
+ conn = list_entry(bundle->unused_conns.next,
+ struct rxrpc_connection,
+ bundle_link);
+ ASSERTCMP(conn->avail_calls, ==, RXRPC_MAXCALLS);
+ conn->avail_calls = RXRPC_MAXCALLS - 1;
+ ASSERT(conn->channels[0] == NULL &&
+ conn->channels[1] == NULL &&
+ conn->channels[2] == NULL &&
+ conn->channels[3] == NULL);
+ atomic_inc(&conn->usage);
+ list_move(&conn->bundle_link, &bundle->avail_conns);
+ break;
+ }
+
+ /* need to allocate a new connection */
+ _debug("get new conn [%d]", bundle->num_conns);
+
+ spin_unlock(&trans->client_lock);
+
+ if (signal_pending(current))
+ goto interrupted;
+
+ if (bundle->num_conns >= 20) {
+ _debug("too many conns");
+
+ if (!(gfp & __GFP_WAIT)) {
+ _leave(" = -EAGAIN");
+ return -EAGAIN;
+ }
+
+ add_wait_queue(&bundle->chanwait, &myself);
+ for (;;) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (bundle->num_conns < 20 ||
+ !list_empty(&bundle->unused_conns) ||
+ !list_empty(&bundle->avail_conns))
+ break;
+ if (signal_pending(current))
+ goto interrupted_dequeue;
+ schedule();
+ }
+ remove_wait_queue(&bundle->chanwait, &myself);
+ __set_current_state(TASK_RUNNING);
+ spin_lock(&trans->client_lock);
+ continue;
+ }
+
+ /* not yet present - create a candidate for a new connection and then
+ * redo the check */
+ candidate = rxrpc_alloc_connection(gfp);
+ if (IS_ERR(candidate)) {
+ _leave(" = %ld", PTR_ERR(candidate));
+ return PTR_ERR(candidate);
+ }
+
+ candidate->trans = trans;
+ candidate->bundle = bundle;
+ candidate->service_id = bundle->service_id;
+ candidate->epoch = rxrpc_epoch;
+ candidate->in_clientflag = 0;
+ candidate->out_clientflag = RXRPC_CLIENT_INITIATED;
+ candidate->cid = 0;
+ candidate->state = RXRPC_CONN_CLIENT;
+ candidate->avail_calls = RXRPC_MAXCALLS;
+ candidate->security_level = rx->min_sec_level;
+ candidate->key = key_get(bundle->key);
+
+ ret = rxrpc_init_client_conn_security(candidate);
+ if (ret < 0) {
+ key_put(candidate->key);
+ kfree(candidate);
+ _leave(" = %d [key]", ret);
+ return ret;
+ }
+
+ write_lock_bh(&rxrpc_connection_lock);
+ list_add_tail(&candidate->link, &rxrpc_connections);
+ write_unlock_bh(&rxrpc_connection_lock);
+
+ spin_lock(&trans->client_lock);
+
+ list_add(&candidate->bundle_link, &bundle->unused_conns);
+ bundle->num_conns++;
+ atomic_inc(&bundle->usage);
+ atomic_inc(&trans->usage);
+
+ _net("CONNECT new %d on TRANS %d",
+ candidate->debug_id, candidate->trans->debug_id);
+
+ rxrpc_assign_connection_id(candidate);
+ if (candidate->security)
+ candidate->security->prime_packet_security(candidate);
+
+ /* leave the candidate lurking in zombie mode attached to the
+ * bundle until we're ready for it */
+ rxrpc_put_connection(candidate);
+ candidate = NULL;
+ }
+
+ /* we've got a connection with a free channel and we can now attach the
+ * call to it
+ * - we're holding the transport's client lock
+ * - we're holding a reference on the connection
+ * - we're holding a reference on the bundle
+ */
+ for (chan = 0; chan < RXRPC_MAXCALLS; chan++)
+ if (!conn->channels[chan])
+ goto found_channel;
+ ASSERT(conn->channels[0] == NULL ||
+ conn->channels[1] == NULL ||
+ conn->channels[2] == NULL ||
+ conn->channels[3] == NULL);
+ BUG();
+
+found_channel:
+ conn->channels[chan] = call;
+ call->conn = conn;
+ call->channel = chan;
+ call->cid = conn->cid | htonl(chan);
+ call->call_id = htonl(++conn->call_counter);
+
+ _net("CONNECT client on conn %d chan %d as call %x",
+ conn->debug_id, chan, ntohl(call->call_id));
+
+ ASSERTCMP(conn->avail_calls, <, RXRPC_MAXCALLS);
+ spin_unlock(&trans->client_lock);
+
+ rxrpc_add_call_ID_to_conn(conn, call);
+
+ _leave(" = 0");
+ return 0;
+
+interrupted_dequeue:
+ remove_wait_queue(&bundle->chanwait, &myself);
+ __set_current_state(TASK_RUNNING);
+interrupted:
+ _leave(" = -ERESTARTSYS");
+ return -ERESTARTSYS;
+}
+
+/*
+ * get a record of an incoming connection
+ */
+struct rxrpc_connection *
+rxrpc_incoming_connection(struct rxrpc_transport *trans,
+ struct rxrpc_header *hdr,
+ gfp_t gfp)
+{
+ struct rxrpc_connection *conn, *candidate = NULL;
+ struct rb_node *p, **pp;
+ const char *new = "old";
+ __be32 epoch;
+ u32 conn_id;
+
+ _enter("");
+
+ ASSERT(hdr->flags & RXRPC_CLIENT_INITIATED);
+
+ epoch = hdr->epoch;
+ conn_id = ntohl(hdr->cid) & RXRPC_CIDMASK;
+
+ /* search the connection list first */
+ read_lock_bh(&trans->conn_lock);
+
+ p = trans->server_conns.rb_node;
+ while (p) {
+ conn = rb_entry(p, struct rxrpc_connection, node);
+
+ _debug("maybe %x", conn->real_conn_id);
+
+ if (epoch < conn->epoch)
+ p = p->rb_left;
+ else if (epoch > conn->epoch)
+ p = p->rb_right;
+ else if (conn_id < conn->real_conn_id)
+ p = p->rb_left;
+ else if (conn_id > conn->real_conn_id)
+ p = p->rb_right;
+ else
+ goto found_extant_connection;
+ }
+ read_unlock_bh(&trans->conn_lock);
+
+ /* not yet present - create a candidate for a new record and then
+ * redo the search */
+ candidate = rxrpc_alloc_connection(gfp);
+ if (!candidate) {
+ _leave(" = -ENOMEM");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ candidate->trans = trans;
+ candidate->epoch = hdr->epoch;
+ candidate->cid = hdr->cid & __constant_cpu_to_be32(RXRPC_CIDMASK);
+ candidate->service_id = hdr->serviceId;
+ candidate->security_ix = hdr->securityIndex;
+ candidate->in_clientflag = RXRPC_CLIENT_INITIATED;
+ candidate->out_clientflag = 0;
+ candidate->real_conn_id = conn_id;
+ candidate->state = RXRPC_CONN_SERVER;
+ if (candidate->service_id)
+ candidate->state = RXRPC_CONN_SERVER_UNSECURED;
+
+ write_lock_bh(&trans->conn_lock);
+
+ pp = &trans->server_conns.rb_node;
+ p = NULL;
+ while (*pp) {
+ p = *pp;
+ conn = rb_entry(p, struct rxrpc_connection, node);
+
+ if (epoch < conn->epoch)
+ pp = &(*pp)->rb_left;
+ else if (epoch > conn->epoch)
+ pp = &(*pp)->rb_right;
+ else if (conn_id < conn->real_conn_id)
+ pp = &(*pp)->rb_left;
+ else if (conn_id > conn->real_conn_id)
+ pp = &(*pp)->rb_right;
+ else
+ goto found_extant_second;
+ }
+
+ /* we can now add the new candidate to the list */
+ conn = candidate;
+ candidate = NULL;
+ rb_link_node(&conn->node, p, pp);
+ rb_insert_color(&conn->node, &trans->server_conns);
+ atomic_inc(&conn->trans->usage);
+
+ write_unlock_bh(&trans->conn_lock);
+
+ write_lock_bh(&rxrpc_connection_lock);
+ list_add_tail(&conn->link, &rxrpc_connections);
+ write_unlock_bh(&rxrpc_connection_lock);
+
+ new = "new";
+
+success:
+ _net("CONNECTION %s %d {%x}", new, conn->debug_id, conn->real_conn_id);
+
+ _leave(" = %p {u=%d}", conn, atomic_read(&conn->usage));
+ return conn;
+
+ /* we found the connection in the list immediately */
+found_extant_connection:
+ if (hdr->securityIndex != conn->security_ix) {
+ read_unlock_bh(&trans->conn_lock);
+ goto security_mismatch;
+ }
+ atomic_inc(&conn->usage);
+ read_unlock_bh(&trans->conn_lock);
+ goto success;
+
+ /* we found the connection on the second time through the list */
+found_extant_second:
+ if (hdr->securityIndex != conn->security_ix) {
+ write_unlock_bh(&trans->conn_lock);
+ goto security_mismatch;
+ }
+ atomic_inc(&conn->usage);
+ write_unlock_bh(&trans->conn_lock);
+ kfree(candidate);
+ goto success;
+
+security_mismatch:
+ kfree(candidate);
+ _leave(" = -EKEYREJECTED");
+ return ERR_PTR(-EKEYREJECTED);
+}
+
+/*
+ * find a connection based on transport and RxRPC connection ID for an incoming
+ * packet
+ */
+struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *trans,
+ struct rxrpc_header *hdr)
+{
+ struct rxrpc_connection *conn;
+ struct rb_node *p;
+ __be32 epoch;
+ u32 conn_id;
+
+ _enter(",{%x,%x}", ntohl(hdr->cid), hdr->flags);
+
+ read_lock_bh(&trans->conn_lock);
+
+ conn_id = ntohl(hdr->cid) & RXRPC_CIDMASK;
+ epoch = hdr->epoch;
+
+ if (hdr->flags & RXRPC_CLIENT_INITIATED)
+ p = trans->server_conns.rb_node;
+ else
+ p = trans->client_conns.rb_node;
+
+ while (p) {
+ conn = rb_entry(p, struct rxrpc_connection, node);
+
+ _debug("maybe %x", conn->real_conn_id);
+
+ if (epoch < conn->epoch)
+ p = p->rb_left;
+ else if (epoch > conn->epoch)
+ p = p->rb_right;
+ else if (conn_id < conn->real_conn_id)
+ p = p->rb_left;
+ else if (conn_id > conn->real_conn_id)
+ p = p->rb_right;
+ else
+ goto found;
+ }
+
+ read_unlock_bh(&trans->conn_lock);
+ _leave(" = NULL");
+ return NULL;
+
+found:
+ atomic_inc(&conn->usage);
+ read_unlock_bh(&trans->conn_lock);
+ _leave(" = %p", conn);
+ return conn;
+}
+
+/*
+ * release a virtual connection
+ */
+void rxrpc_put_connection(struct rxrpc_connection *conn)
+{
+ _enter("%p{u=%d,d=%d}",
+ conn, atomic_read(&conn->usage), conn->debug_id);
+
+ ASSERTCMP(atomic_read(&conn->usage), >, 0);
+
+ conn->put_time = xtime.tv_sec;
+ if (atomic_dec_and_test(&conn->usage)) {
+ _debug("zombie");
+ rxrpc_queue_delayed_work(&rxrpc_connection_reap, 0);
+ }
+
+ _leave("");
+}
+
+/*
+ * destroy a virtual connection
+ */
+static void rxrpc_destroy_connection(struct rxrpc_connection *conn)
+{
+ _enter("%p{%d}", conn, atomic_read(&conn->usage));
+
+ ASSERTCMP(atomic_read(&conn->usage), ==, 0);
+
+ _net("DESTROY CONN %d", conn->debug_id);
+
+ if (conn->bundle)
+ rxrpc_put_bundle(conn->trans, conn->bundle);
+
+ ASSERT(RB_EMPTY_ROOT(&conn->calls));
+ rxrpc_purge_queue(&conn->rx_queue);
+
+ rxrpc_clear_conn_security(conn);
+ rxrpc_put_transport(conn->trans);
+ kfree(conn);
+ _leave("");
+}
+
+/*
+ * reap dead connections
+ */
+void rxrpc_connection_reaper(struct work_struct *work)
+{
+ struct rxrpc_connection *conn, *_p;
+ unsigned long now, earliest, reap_time;
+
+ LIST_HEAD(graveyard);
+
+ _enter("");
+
+ now = xtime.tv_sec;
+ earliest = ULONG_MAX;
+
+ write_lock_bh(&rxrpc_connection_lock);
+ list_for_each_entry_safe(conn, _p, &rxrpc_connections, link) {
+ _debug("reap CONN %d { u=%d,t=%ld }",
+ conn->debug_id, atomic_read(&conn->usage),
+ (long) now - (long) conn->put_time);
+
+ if (likely(atomic_read(&conn->usage) > 0))
+ continue;
+
+ spin_lock(&conn->trans->client_lock);
+ write_lock(&conn->trans->conn_lock);
+ reap_time = conn->put_time + rxrpc_connection_timeout;
+
+ if (atomic_read(&conn->usage) > 0) {
+ ;
+ } else if (reap_time <= now) {
+ list_move_tail(&conn->link, &graveyard);
+ if (conn->out_clientflag)
+ rb_erase(&conn->node,
+ &conn->trans->client_conns);
+ else
+ rb_erase(&conn->node,
+ &conn->trans->server_conns);
+ if (conn->bundle) {
+ list_del_init(&conn->bundle_link);
+ conn->bundle->num_conns--;
+ }
+
+ } else if (reap_time < earliest) {
+ earliest = reap_time;
+ }
+
+ write_unlock(&conn->trans->conn_lock);
+ spin_unlock(&conn->trans->client_lock);
+ }
+ write_unlock_bh(&rxrpc_connection_lock);
+
+ if (earliest != ULONG_MAX) {
+ _debug("reschedule reaper %ld", (long) earliest - now);
+ ASSERTCMP(earliest, >, now);
+ rxrpc_queue_delayed_work(&rxrpc_connection_reap,
+ (earliest - now) * HZ);
+ }
+
+ /* then destroy all those pulled out */
+ while (!list_empty(&graveyard)) {
+ conn = list_entry(graveyard.next, struct rxrpc_connection,
+ link);
+ list_del_init(&conn->link);
+
+ ASSERTCMP(atomic_read(&conn->usage), ==, 0);
+ rxrpc_destroy_connection(conn);
+ }
+
+ _leave("");
+}
+
+/*
+ * preemptively destroy all the connection records rather than waiting for them
+ * to time out
+ */
+void __exit rxrpc_destroy_all_connections(void)
+{
+ _enter("");
+
+ rxrpc_connection_timeout = 0;
+ cancel_delayed_work(&rxrpc_connection_reap);
+ rxrpc_queue_delayed_work(&rxrpc_connection_reap, 0);
+
+ _leave("");
+}
--- /dev/null
+/* connection-level event handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/errqueue.h>
+#include <linux/udp.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/icmp.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <net/ip.h>
+#include "ar-internal.h"
+
+/*
+ * pass a connection-level abort onto all calls on that connection
+ */
+static void rxrpc_abort_calls(struct rxrpc_connection *conn, int state,
+ u32 abort_code)
+{
+ struct rxrpc_call *call;
+ struct rb_node *p;
+
+ _enter("{%d},%x", conn->debug_id, abort_code);
+
+ read_lock_bh(&conn->lock);
+
+ for (p = rb_first(&conn->calls); p; p = rb_next(p)) {
+ call = rb_entry(p, struct rxrpc_call, conn_node);
+ write_lock(&call->state_lock);
+ if (call->state <= RXRPC_CALL_COMPLETE) {
+ call->state = state;
+ call->abort_code = abort_code;
+ if (state == RXRPC_CALL_LOCALLY_ABORTED)
+ set_bit(RXRPC_CALL_CONN_ABORT, &call->events);
+ else
+ set_bit(RXRPC_CALL_RCVD_ABORT, &call->events);
+ rxrpc_queue_call(call);
+ }
+ write_unlock(&call->state_lock);
+ }
+
+ read_unlock_bh(&conn->lock);
+ _leave("");
+}
+
+/*
+ * generate a connection-level abort
+ */
+static int rxrpc_abort_connection(struct rxrpc_connection *conn,
+ u32 error, u32 abort_code)
+{
+ struct rxrpc_header hdr;
+ struct msghdr msg;
+ struct kvec iov[2];
+ __be32 word;
+ size_t len;
+ int ret;
+
+ _enter("%d,,%u,%u", conn->debug_id, error, abort_code);
+
+ /* generate a connection-level abort */
+ spin_lock_bh(&conn->state_lock);
+ if (conn->state < RXRPC_CONN_REMOTELY_ABORTED) {
+ conn->state = RXRPC_CONN_LOCALLY_ABORTED;
+ conn->error = error;
+ spin_unlock_bh(&conn->state_lock);
+ } else {
+ spin_unlock_bh(&conn->state_lock);
+ _leave(" = 0 [already dead]");
+ return 0;
+ }
+
+ rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, abort_code);
+
+ msg.msg_name = &conn->trans->peer->srx.transport.sin;
+ msg.msg_namelen = sizeof(conn->trans->peer->srx.transport.sin);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ hdr.epoch = conn->epoch;
+ hdr.cid = conn->cid;
+ hdr.callNumber = 0;
+ hdr.seq = 0;
+ hdr.type = RXRPC_PACKET_TYPE_ABORT;
+ hdr.flags = conn->out_clientflag;
+ hdr.userStatus = 0;
+ hdr.securityIndex = conn->security_ix;
+ hdr._rsvd = 0;
+ hdr.serviceId = conn->service_id;
+
+ word = htonl(abort_code);
+
+ iov[0].iov_base = &hdr;
+ iov[0].iov_len = sizeof(hdr);
+ iov[1].iov_base = &word;
+ iov[1].iov_len = sizeof(word);
+
+ len = iov[0].iov_len + iov[1].iov_len;
+
+ hdr.serial = htonl(atomic_inc_return(&conn->serial));
+ _proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);
+
+ ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
+ if (ret < 0) {
+ _debug("sendmsg failed: %d", ret);
+ return -EAGAIN;
+ }
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * mark a call as being on a now-secured channel
+ * - must be called with softirqs disabled
+ */
+void rxrpc_call_is_secure(struct rxrpc_call *call)
+{
+ _enter("%p", call);
+ if (call) {
+ read_lock(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ !test_and_set_bit(RXRPC_CALL_SECURED, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock(&call->state_lock);
+ }
+}
+
+/*
+ * connection-level Rx packet processor
+ */
+static int rxrpc_process_event(struct rxrpc_connection *conn,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+ __be32 tmp;
+ u32 serial;
+ int loop, ret;
+
+ if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED)
+ return -ECONNABORTED;
+
+ serial = ntohl(sp->hdr.serial);
+
+ switch (sp->hdr.type) {
+ case RXRPC_PACKET_TYPE_ABORT:
+ if (skb_copy_bits(skb, 0, &tmp, sizeof(tmp)) < 0)
+ return -EPROTO;
+ _proto("Rx ABORT %%%u { ac=%d }", serial, ntohl(tmp));
+
+ conn->state = RXRPC_CONN_REMOTELY_ABORTED;
+ rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED,
+ ntohl(tmp));
+ return -ECONNABORTED;
+
+ case RXRPC_PACKET_TYPE_CHALLENGE:
+ if (conn->security)
+ return conn->security->respond_to_challenge(
+ conn, skb, _abort_code);
+ return -EPROTO;
+
+ case RXRPC_PACKET_TYPE_RESPONSE:
+ if (!conn->security)
+ return -EPROTO;
+
+ ret = conn->security->verify_response(conn, skb, _abort_code);
+ if (ret < 0)
+ return ret;
+
+ ret = conn->security->init_connection_security(conn);
+ if (ret < 0)
+ return ret;
+
+ conn->security->prime_packet_security(conn);
+ read_lock_bh(&conn->lock);
+ spin_lock(&conn->state_lock);
+
+ if (conn->state == RXRPC_CONN_SERVER_CHALLENGING) {
+ conn->state = RXRPC_CONN_SERVER;
+ for (loop = 0; loop < RXRPC_MAXCALLS; loop++)
+ rxrpc_call_is_secure(conn->channels[loop]);
+ }
+
+ spin_unlock(&conn->state_lock);
+ read_unlock_bh(&conn->lock);
+ return 0;
+
+ default:
+ return -EPROTO;
+ }
+}
+
+/*
+ * set up security and issue a challenge
+ */
+static void rxrpc_secure_connection(struct rxrpc_connection *conn)
+{
+ u32 abort_code;
+ int ret;
+
+ _enter("{%d}", conn->debug_id);
+
+ ASSERT(conn->security_ix != 0);
+
+ if (!conn->key) {
+ _debug("set up security");
+ ret = rxrpc_init_server_conn_security(conn);
+ switch (ret) {
+ case 0:
+ break;
+ case -ENOENT:
+ abort_code = RX_CALL_DEAD;
+ goto abort;
+ default:
+ abort_code = RXKADNOAUTH;
+ goto abort;
+ }
+ }
+
+ ASSERT(conn->security != NULL);
+
+ if (conn->security->issue_challenge(conn) < 0) {
+ abort_code = RX_CALL_DEAD;
+ ret = -ENOMEM;
+ goto abort;
+ }
+
+ _leave("");
+ return;
+
+abort:
+ _debug("abort %d, %d", ret, abort_code);
+ rxrpc_abort_connection(conn, -ret, abort_code);
+ _leave(" [aborted]");
+}
+
+/*
+ * connection-level event processor
+ */
+void rxrpc_process_connection(struct work_struct *work)
+{
+ struct rxrpc_connection *conn =
+ container_of(work, struct rxrpc_connection, processor);
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *skb;
+ u32 abort_code = RX_PROTOCOL_ERROR;
+ int ret;
+
+ _enter("{%d}", conn->debug_id);
+
+ atomic_inc(&conn->usage);
+
+ if (test_and_clear_bit(RXRPC_CONN_CHALLENGE, &conn->events)) {
+ rxrpc_secure_connection(conn);
+ rxrpc_put_connection(conn);
+ }
+
+ /* go through the conn-level event packets, releasing the ref on this
+ * connection that each one has when we've finished with it */
+ while ((skb = skb_dequeue(&conn->rx_queue))) {
+ sp = rxrpc_skb(skb);
+
+ ret = rxrpc_process_event(conn, skb, &abort_code);
+ switch (ret) {
+ case -EPROTO:
+ case -EKEYEXPIRED:
+ case -EKEYREJECTED:
+ goto protocol_error;
+ case -EAGAIN:
+ goto requeue_and_leave;
+ case -ECONNABORTED:
+ default:
+ rxrpc_put_connection(conn);
+ rxrpc_free_skb(skb);
+ break;
+ }
+ }
+
+out:
+ rxrpc_put_connection(conn);
+ _leave("");
+ return;
+
+requeue_and_leave:
+ skb_queue_head(&conn->rx_queue, skb);
+ goto out;
+
+protocol_error:
+ if (rxrpc_abort_connection(conn, -ret, abort_code) < 0)
+ goto requeue_and_leave;
+ rxrpc_put_connection(conn);
+ rxrpc_free_skb(skb);
+ _leave(" [EPROTO]");
+ goto out;
+}
+
+/*
+ * put a packet up for transport-level abort
+ */
+void rxrpc_reject_packet(struct rxrpc_local *local, struct sk_buff *skb)
+{
+ CHECK_SLAB_OKAY(&local->usage);
+
+ if (!atomic_inc_not_zero(&local->usage)) {
+ printk("resurrected on reject\n");
+ BUG();
+ }
+
+ skb_queue_tail(&local->reject_queue, skb);
+ rxrpc_queue_work(&local->rejecter);
+}
+
+/*
+ * reject packets through the local endpoint
+ */
+void rxrpc_reject_packets(struct work_struct *work)
+{
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+ } sa;
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_header hdr;
+ struct rxrpc_local *local;
+ struct sk_buff *skb;
+ struct msghdr msg;
+ struct kvec iov[2];
+ size_t size;
+ __be32 code;
+
+ local = container_of(work, struct rxrpc_local, rejecter);
+ rxrpc_get_local(local);
+
+ _enter("%d", local->debug_id);
+
+ iov[0].iov_base = &hdr;
+ iov[0].iov_len = sizeof(hdr);
+ iov[1].iov_base = &code;
+ iov[1].iov_len = sizeof(code);
+ size = sizeof(hdr) + sizeof(code);
+
+ msg.msg_name = &sa;
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ memset(&sa, 0, sizeof(sa));
+ sa.sa.sa_family = local->srx.transport.family;
+ switch (sa.sa.sa_family) {
+ case AF_INET:
+ msg.msg_namelen = sizeof(sa.sin);
+ break;
+ default:
+ msg.msg_namelen = 0;
+ break;
+ }
+
+ memset(&hdr, 0, sizeof(hdr));
+ hdr.type = RXRPC_PACKET_TYPE_ABORT;
+
+ while ((skb = skb_dequeue(&local->reject_queue))) {
+ sp = rxrpc_skb(skb);
+ switch (sa.sa.sa_family) {
+ case AF_INET:
+ sa.sin.sin_port = udp_hdr(skb)->source;
+ sa.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
+ code = htonl(skb->priority);
+
+ hdr.epoch = sp->hdr.epoch;
+ hdr.cid = sp->hdr.cid;
+ hdr.callNumber = sp->hdr.callNumber;
+ hdr.serviceId = sp->hdr.serviceId;
+ hdr.flags = sp->hdr.flags;
+ hdr.flags ^= RXRPC_CLIENT_INITIATED;
+ hdr.flags &= RXRPC_CLIENT_INITIATED;
+
+ kernel_sendmsg(local->socket, &msg, iov, 2, size);
+ break;
+
+ default:
+ break;
+ }
+
+ rxrpc_free_skb(skb);
+ rxrpc_put_local(local);
+ }
+
+ rxrpc_put_local(local);
+ _leave("");
+}
--- /dev/null
+/* Error message handling (ICMP)
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/errqueue.h>
+#include <linux/udp.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/icmp.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <net/ip.h>
+#include "ar-internal.h"
+
+/*
+ * handle an error received on the local endpoint
+ */
+void rxrpc_UDP_error_report(struct sock *sk)
+{
+ struct sock_exterr_skb *serr;
+ struct rxrpc_transport *trans;
+ struct rxrpc_local *local = sk->sk_user_data;
+ struct rxrpc_peer *peer;
+ struct sk_buff *skb;
+ __be32 addr;
+ __be16 port;
+
+ _enter("%p{%d}", sk, local->debug_id);
+
+ skb = skb_dequeue(&sk->sk_error_queue);
+ if (!skb) {
+ _leave("UDP socket errqueue empty");
+ return;
+ }
+
+ rxrpc_new_skb(skb);
+
+ serr = SKB_EXT_ERR(skb);
+ addr = *(__be32 *)(skb_network_header(skb) + serr->addr_offset);
+ port = serr->port;
+
+ _net("Rx UDP Error from "NIPQUAD_FMT":%hu",
+ NIPQUAD(addr), ntohs(port));
+ _debug("Msg l:%d d:%d", skb->len, skb->data_len);
+
+ peer = rxrpc_find_peer(local, addr, port);
+ if (IS_ERR(peer)) {
+ rxrpc_free_skb(skb);
+ _leave(" [no peer]");
+ return;
+ }
+
+ trans = rxrpc_find_transport(local, peer);
+ if (!trans) {
+ rxrpc_put_peer(peer);
+ rxrpc_free_skb(skb);
+ _leave(" [no trans]");
+ return;
+ }
+
+ if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP &&
+ serr->ee.ee_type == ICMP_DEST_UNREACH &&
+ serr->ee.ee_code == ICMP_FRAG_NEEDED
+ ) {
+ u32 mtu = serr->ee.ee_info;
+
+ _net("Rx Received ICMP Fragmentation Needed (%d)", mtu);
+
+ /* wind down the local interface MTU */
+ if (mtu > 0 && peer->if_mtu == 65535 && mtu < peer->if_mtu) {
+ peer->if_mtu = mtu;
+ _net("I/F MTU %u", mtu);
+ }
+
+ /* ip_rt_frag_needed() may have eaten the info */
+ if (mtu == 0)
+ mtu = ntohs(icmp_hdr(skb)->un.frag.mtu);
+
+ if (mtu == 0) {
+ /* they didn't give us a size, estimate one */
+ if (mtu > 1500) {
+ mtu >>= 1;
+ if (mtu < 1500)
+ mtu = 1500;
+ } else {
+ mtu -= 100;
+ if (mtu < peer->hdrsize)
+ mtu = peer->hdrsize + 4;
+ }
+ }
+
+ if (mtu < peer->mtu) {
+ peer->mtu = mtu;
+ peer->maxdata = peer->mtu - peer->hdrsize;
+ _net("Net MTU %u (maxdata %u)",
+ peer->mtu, peer->maxdata);
+ }
+ }
+
+ rxrpc_put_peer(peer);
+
+ /* pass the transport ref to error_handler to release */
+ skb_queue_tail(&trans->error_queue, skb);
+ rxrpc_queue_work(&trans->error_handler);
+
+ /* reset and regenerate socket error */
+ spin_lock_bh(&sk->sk_error_queue.lock);
+ sk->sk_err = 0;
+ skb = skb_peek(&sk->sk_error_queue);
+ if (skb) {
+ sk->sk_err = SKB_EXT_ERR(skb)->ee.ee_errno;
+ spin_unlock_bh(&sk->sk_error_queue.lock);
+ sk->sk_error_report(sk);
+ } else {
+ spin_unlock_bh(&sk->sk_error_queue.lock);
+ }
+
+ _leave("");
+}
+
+/*
+ * deal with UDP error messages
+ */
+void rxrpc_UDP_error_handler(struct work_struct *work)
+{
+ struct sock_extended_err *ee;
+ struct sock_exterr_skb *serr;
+ struct rxrpc_transport *trans =
+ container_of(work, struct rxrpc_transport, error_handler);
+ struct sk_buff *skb;
+ int local, err;
+
+ _enter("");
+
+ skb = skb_dequeue(&trans->error_queue);
+ if (!skb)
+ return;
+
+ serr = SKB_EXT_ERR(skb);
+ ee = &serr->ee;
+
+ _net("Rx Error o=%d t=%d c=%d e=%d",
+ ee->ee_origin, ee->ee_type, ee->ee_code, ee->ee_errno);
+
+ err = ee->ee_errno;
+
+ switch (ee->ee_origin) {
+ case SO_EE_ORIGIN_ICMP:
+ local = 0;
+ switch (ee->ee_type) {
+ case ICMP_DEST_UNREACH:
+ switch (ee->ee_code) {
+ case ICMP_NET_UNREACH:
+ _net("Rx Received ICMP Network Unreachable");
+ err = ENETUNREACH;
+ break;
+ case ICMP_HOST_UNREACH:
+ _net("Rx Received ICMP Host Unreachable");
+ err = EHOSTUNREACH;
+ break;
+ case ICMP_PORT_UNREACH:
+ _net("Rx Received ICMP Port Unreachable");
+ err = ECONNREFUSED;
+ break;
+ case ICMP_FRAG_NEEDED:
+ _net("Rx Received ICMP Fragmentation Needed (%d)",
+ ee->ee_info);
+ err = 0; /* dealt with elsewhere */
+ break;
+ case ICMP_NET_UNKNOWN:
+ _net("Rx Received ICMP Unknown Network");
+ err = ENETUNREACH;
+ break;
+ case ICMP_HOST_UNKNOWN:
+ _net("Rx Received ICMP Unknown Host");
+ err = EHOSTUNREACH;
+ break;
+ default:
+ _net("Rx Received ICMP DestUnreach code=%u",
+ ee->ee_code);
+ break;
+ }
+ break;
+
+ case ICMP_TIME_EXCEEDED:
+ _net("Rx Received ICMP TTL Exceeded");
+ break;
+
+ default:
+ _proto("Rx Received ICMP error { type=%u code=%u }",
+ ee->ee_type, ee->ee_code);
+ break;
+ }
+ break;
+
+ case SO_EE_ORIGIN_LOCAL:
+ _proto("Rx Received local error { error=%d }",
+ ee->ee_errno);
+ local = 1;
+ break;
+
+ case SO_EE_ORIGIN_NONE:
+ case SO_EE_ORIGIN_ICMP6:
+ default:
+ _proto("Rx Received error report { orig=%u }",
+ ee->ee_origin);
+ local = 0;
+ break;
+ }
+
+ /* terminate all the affected calls if there's an unrecoverable
+ * error */
+ if (err) {
+ struct rxrpc_call *call, *_n;
+
+ _debug("ISSUE ERROR %d", err);
+
+ spin_lock_bh(&trans->peer->lock);
+ trans->peer->net_error = err;
+
+ list_for_each_entry_safe(call, _n, &trans->peer->error_targets,
+ error_link) {
+ write_lock(&call->state_lock);
+ if (call->state != RXRPC_CALL_COMPLETE &&
+ call->state < RXRPC_CALL_NETWORK_ERROR) {
+ call->state = RXRPC_CALL_NETWORK_ERROR;
+ set_bit(RXRPC_CALL_RCVD_ERROR, &call->events);
+ rxrpc_queue_call(call);
+ }
+ write_unlock(&call->state_lock);
+ list_del_init(&call->error_link);
+ }
+
+ spin_unlock_bh(&trans->peer->lock);
+ }
+
+ if (!skb_queue_empty(&trans->error_queue))
+ rxrpc_queue_work(&trans->error_handler);
+
+ rxrpc_free_skb(skb);
+ rxrpc_put_transport(trans);
+ _leave("");
+}
--- /dev/null
+/* RxRPC packet reception
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/errqueue.h>
+#include <linux/udp.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/icmp.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <net/ip.h>
+#include "ar-internal.h"
+
+unsigned long rxrpc_ack_timeout = 1;
+
+const char *rxrpc_pkts[] = {
+ "?00",
+ "DATA", "ACK", "BUSY", "ABORT", "ACKALL", "CHALL", "RESP", "DEBUG",
+ "?09", "?10", "?11", "?12", "?13", "?14", "?15"
+};
+
+/*
+ * queue a packet for recvmsg to pass to userspace
+ * - the caller must hold a lock on call->lock
+ * - must not be called with interrupts disabled (sk_filter() disables BH's)
+ * - eats the packet whether successful or not
+ * - there must be just one reference to the packet, which the caller passes to
+ * this function
+ */
+int rxrpc_queue_rcv_skb(struct rxrpc_call *call, struct sk_buff *skb,
+ bool force, bool terminal)
+{
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_sock *rx = call->socket;
+ struct sock *sk;
+ int skb_len, ret;
+
+ _enter(",,%d,%d", force, terminal);
+
+ ASSERT(!irqs_disabled());
+
+ sp = rxrpc_skb(skb);
+ ASSERTCMP(sp->call, ==, call);
+
+ /* if we've already posted the terminal message for a call, then we
+ * don't post any more */
+ if (test_bit(RXRPC_CALL_TERMINAL_MSG, &call->flags)) {
+ _debug("already terminated");
+ ASSERTCMP(call->state, >=, RXRPC_CALL_COMPLETE);
+ skb->destructor = NULL;
+ sp->call = NULL;
+ rxrpc_put_call(call);
+ rxrpc_free_skb(skb);
+ return 0;
+ }
+
+ sk = &rx->sk;
+
+ if (!force) {
+ /* cast skb->rcvbuf to unsigned... It's pointless, but
+ * reduces number of warnings when compiling with -W
+ * --ANK */
+// ret = -ENOBUFS;
+// if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
+// (unsigned) sk->sk_rcvbuf)
+// goto out;
+
+ ret = sk_filter(sk, skb);
+ if (ret < 0)
+ goto out;
+ }
+
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ if (!test_bit(RXRPC_CALL_TERMINAL_MSG, &call->flags) &&
+ !test_bit(RXRPC_CALL_RELEASED, &call->flags) &&
+ call->socket->sk.sk_state != RXRPC_CLOSE) {
+ skb->destructor = rxrpc_packet_destructor;
+ skb->dev = NULL;
+ skb->sk = sk;
+ atomic_add(skb->truesize, &sk->sk_rmem_alloc);
+
+ if (terminal) {
+ _debug("<<<< TERMINAL MESSAGE >>>>");
+ set_bit(RXRPC_CALL_TERMINAL_MSG, &call->flags);
+ }
+
+ /* allow interception by a kernel service */
+ if (rx->interceptor) {
+ rx->interceptor(sk, call->user_call_ID, skb);
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ } else {
+
+ /* Cache the SKB length before we tack it onto the
+ * receive queue. Once it is added it no longer
+ * belongs to us and may be freed by other threads of
+ * control pulling packets from the queue */
+ skb_len = skb->len;
+
+ _net("post skb %p", skb);
+ __skb_queue_tail(&sk->sk_receive_queue, skb);
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+
+ if (!sock_flag(sk, SOCK_DEAD))
+ sk->sk_data_ready(sk, skb_len);
+ }
+ skb = NULL;
+ } else {
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+ }
+ ret = 0;
+
+out:
+ /* release the socket buffer */
+ if (skb) {
+ skb->destructor = NULL;
+ sp->call = NULL;
+ rxrpc_put_call(call);
+ rxrpc_free_skb(skb);
+ }
+
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * process a DATA packet, posting the packet to the appropriate queue
+ * - eats the packet if successful
+ */
+static int rxrpc_fast_process_data(struct rxrpc_call *call,
+ struct sk_buff *skb, u32 seq)
+{
+ struct rxrpc_skb_priv *sp;
+ bool terminal;
+ int ret, ackbit, ack;
+
+ _enter("{%u,%u},,{%u}", call->rx_data_post, call->rx_first_oos, seq);
+
+ sp = rxrpc_skb(skb);
+ ASSERTCMP(sp->call, ==, NULL);
+
+ spin_lock(&call->lock);
+
+ if (call->state > RXRPC_CALL_COMPLETE)
+ goto discard;
+
+ ASSERTCMP(call->rx_data_expect, >=, call->rx_data_post);
+ ASSERTCMP(call->rx_data_post, >=, call->rx_data_recv);
+ ASSERTCMP(call->rx_data_recv, >=, call->rx_data_eaten);
+
+ if (seq < call->rx_data_post) {
+ _debug("dup #%u [-%u]", seq, call->rx_data_post);
+ ack = RXRPC_ACK_DUPLICATE;
+ ret = -ENOBUFS;
+ goto discard_and_ack;
+ }
+
+ /* we may already have the packet in the out of sequence queue */
+ ackbit = seq - (call->rx_data_eaten + 1);
+ ASSERTCMP(ackbit, >=, 0);
+ if (__test_and_set_bit(ackbit, call->ackr_window)) {
+ _debug("dup oos #%u [%u,%u]",
+ seq, call->rx_data_eaten, call->rx_data_post);
+ ack = RXRPC_ACK_DUPLICATE;
+ goto discard_and_ack;
+ }
+
+ if (seq >= call->ackr_win_top) {
+ _debug("exceed #%u [%u]", seq, call->ackr_win_top);
+ __clear_bit(ackbit, call->ackr_window);
+ ack = RXRPC_ACK_EXCEEDS_WINDOW;
+ goto discard_and_ack;
+ }
+
+ if (seq == call->rx_data_expect) {
+ clear_bit(RXRPC_CALL_EXPECT_OOS, &call->flags);
+ call->rx_data_expect++;
+ } else if (seq > call->rx_data_expect) {
+ _debug("oos #%u [%u]", seq, call->rx_data_expect);
+ call->rx_data_expect = seq + 1;
+ if (test_and_set_bit(RXRPC_CALL_EXPECT_OOS, &call->flags)) {
+ ack = RXRPC_ACK_OUT_OF_SEQUENCE;
+ goto enqueue_and_ack;
+ }
+ goto enqueue_packet;
+ }
+
+ if (seq != call->rx_data_post) {
+ _debug("ahead #%u [%u]", seq, call->rx_data_post);
+ goto enqueue_packet;
+ }
+
+ if (test_bit(RXRPC_CALL_RCVD_LAST, &call->flags))
+ goto protocol_error;
+
+ /* if the packet need security things doing to it, then it goes down
+ * the slow path */
+ if (call->conn->security)
+ goto enqueue_packet;
+
+ sp->call = call;
+ rxrpc_get_call(call);
+ terminal = ((sp->hdr.flags & RXRPC_LAST_PACKET) &&
+ !(sp->hdr.flags & RXRPC_CLIENT_INITIATED));
+ ret = rxrpc_queue_rcv_skb(call, skb, false, terminal);
+ if (ret < 0) {
+ if (ret == -ENOMEM || ret == -ENOBUFS) {
+ __clear_bit(ackbit, call->ackr_window);
+ ack = RXRPC_ACK_NOSPACE;
+ goto discard_and_ack;
+ }
+ goto out;
+ }
+
+ skb = NULL;
+
+ _debug("post #%u", seq);
+ ASSERTCMP(call->rx_data_post, ==, seq);
+ call->rx_data_post++;
+
+ if (sp->hdr.flags & RXRPC_LAST_PACKET)
+ set_bit(RXRPC_CALL_RCVD_LAST, &call->flags);
+
+ /* if we've reached an out of sequence packet then we need to drain
+ * that queue into the socket Rx queue now */
+ if (call->rx_data_post == call->rx_first_oos) {
+ _debug("drain rx oos now");
+ read_lock(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ !test_and_set_bit(RXRPC_CALL_DRAIN_RX_OOS, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock(&call->state_lock);
+ }
+
+ spin_unlock(&call->lock);
+ atomic_inc(&call->ackr_not_idle);
+ rxrpc_propose_ACK(call, RXRPC_ACK_DELAY, sp->hdr.serial, false);
+ _leave(" = 0 [posted]");
+ return 0;
+
+protocol_error:
+ ret = -EBADMSG;
+out:
+ spin_unlock(&call->lock);
+ _leave(" = %d", ret);
+ return ret;
+
+discard_and_ack:
+ _debug("discard and ACK packet %p", skb);
+ __rxrpc_propose_ACK(call, ack, sp->hdr.serial, true);
+discard:
+ spin_unlock(&call->lock);
+ rxrpc_free_skb(skb);
+ _leave(" = 0 [discarded]");
+ return 0;
+
+enqueue_and_ack:
+ __rxrpc_propose_ACK(call, ack, sp->hdr.serial, true);
+enqueue_packet:
+ _net("defer skb %p", skb);
+ spin_unlock(&call->lock);
+ skb_queue_tail(&call->rx_queue, skb);
+ atomic_inc(&call->ackr_not_idle);
+ read_lock(&call->state_lock);
+ if (call->state < RXRPC_CALL_DEAD)
+ rxrpc_queue_call(call);
+ read_unlock(&call->state_lock);
+ _leave(" = 0 [queued]");
+ return 0;
+}
+
+/*
+ * assume an implicit ACKALL of the transmission phase of a client socket upon
+ * reception of the first reply packet
+ */
+static void rxrpc_assume_implicit_ackall(struct rxrpc_call *call, u32 serial)
+{
+ write_lock_bh(&call->state_lock);
+
+ switch (call->state) {
+ case RXRPC_CALL_CLIENT_AWAIT_REPLY:
+ call->state = RXRPC_CALL_CLIENT_RECV_REPLY;
+ call->acks_latest = serial;
+
+ _debug("implicit ACKALL %%%u", call->acks_latest);
+ set_bit(RXRPC_CALL_RCVD_ACKALL, &call->events);
+ write_unlock_bh(&call->state_lock);
+
+ if (try_to_del_timer_sync(&call->resend_timer) >= 0) {
+ clear_bit(RXRPC_CALL_RESEND_TIMER, &call->events);
+ clear_bit(RXRPC_CALL_RESEND, &call->events);
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ }
+ break;
+
+ default:
+ write_unlock_bh(&call->state_lock);
+ break;
+ }
+}
+
+/*
+ * post an incoming packet to the nominated call to deal with
+ * - must get rid of the sk_buff, either by freeing it or by queuing it
+ */
+void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+ __be32 _abort_code;
+ u32 serial, hi_serial, seq, abort_code;
+
+ _enter("%p,%p", call, skb);
+
+ ASSERT(!irqs_disabled());
+
+#if 0 // INJECT RX ERROR
+ if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA) {
+ static int skip = 0;
+ if (++skip == 3) {
+ printk("DROPPED 3RD PACKET!!!!!!!!!!!!!\n");
+ skip = 0;
+ goto free_packet;
+ }
+ }
+#endif
+
+ /* track the latest serial number on this connection for ACK packet
+ * information */
+ serial = ntohl(sp->hdr.serial);
+ hi_serial = atomic_read(&call->conn->hi_serial);
+ while (serial > hi_serial)
+ hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial,
+ serial);
+
+ /* request ACK generation for any ACK or DATA packet that requests
+ * it */
+ if (sp->hdr.flags & RXRPC_REQUEST_ACK) {
+ _proto("ACK Requested on %%%u", serial);
+ rxrpc_propose_ACK(call, RXRPC_ACK_REQUESTED, sp->hdr.serial,
+ !(sp->hdr.flags & RXRPC_MORE_PACKETS));
+ }
+
+ switch (sp->hdr.type) {
+ case RXRPC_PACKET_TYPE_ABORT:
+ _debug("abort");
+
+ if (skb_copy_bits(skb, 0, &_abort_code,
+ sizeof(_abort_code)) < 0)
+ goto protocol_error;
+
+ abort_code = ntohl(_abort_code);
+ _proto("Rx ABORT %%%u { %x }", serial, abort_code);
+
+ write_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE) {
+ call->state = RXRPC_CALL_REMOTELY_ABORTED;
+ call->abort_code = abort_code;
+ set_bit(RXRPC_CALL_RCVD_ABORT, &call->events);
+ rxrpc_queue_call(call);
+ }
+ goto free_packet_unlock;
+
+ case RXRPC_PACKET_TYPE_BUSY:
+ _proto("Rx BUSY %%%u", serial);
+
+ if (call->conn->out_clientflag)
+ goto protocol_error;
+
+ write_lock_bh(&call->state_lock);
+ switch (call->state) {
+ case RXRPC_CALL_CLIENT_SEND_REQUEST:
+ call->state = RXRPC_CALL_SERVER_BUSY;
+ set_bit(RXRPC_CALL_RCVD_BUSY, &call->events);
+ rxrpc_queue_call(call);
+ case RXRPC_CALL_SERVER_BUSY:
+ goto free_packet_unlock;
+ default:
+ goto protocol_error_locked;
+ }
+
+ default:
+ _proto("Rx %s %%%u", rxrpc_pkts[sp->hdr.type], serial);
+ goto protocol_error;
+
+ case RXRPC_PACKET_TYPE_DATA:
+ seq = ntohl(sp->hdr.seq);
+
+ _proto("Rx DATA %%%u { #%u }", serial, seq);
+
+ if (seq == 0)
+ goto protocol_error;
+
+ call->ackr_prev_seq = sp->hdr.seq;
+
+ /* received data implicitly ACKs all of the request packets we
+ * sent when we're acting as a client */
+ if (call->state == RXRPC_CALL_CLIENT_AWAIT_REPLY)
+ rxrpc_assume_implicit_ackall(call, serial);
+
+ switch (rxrpc_fast_process_data(call, skb, seq)) {
+ case 0:
+ skb = NULL;
+ goto done;
+
+ default:
+ BUG();
+
+ /* data packet received beyond the last packet */
+ case -EBADMSG:
+ goto protocol_error;
+ }
+
+ case RXRPC_PACKET_TYPE_ACK:
+ /* ACK processing is done in process context */
+ read_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_DEAD) {
+ skb_queue_tail(&call->rx_queue, skb);
+ rxrpc_queue_call(call);
+ skb = NULL;
+ }
+ read_unlock_bh(&call->state_lock);
+ goto free_packet;
+ }
+
+protocol_error:
+ _debug("protocol error");
+ write_lock_bh(&call->state_lock);
+protocol_error_locked:
+ if (call->state <= RXRPC_CALL_COMPLETE) {
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ call->abort_code = RX_PROTOCOL_ERROR;
+ set_bit(RXRPC_CALL_ABORT, &call->events);
+ rxrpc_queue_call(call);
+ }
+free_packet_unlock:
+ write_unlock_bh(&call->state_lock);
+free_packet:
+ rxrpc_free_skb(skb);
+done:
+ _leave("");
+}
+
+/*
+ * split up a jumbo data packet
+ */
+static void rxrpc_process_jumbo_packet(struct rxrpc_call *call,
+ struct sk_buff *jumbo)
+{
+ struct rxrpc_jumbo_header jhdr;
+ struct rxrpc_skb_priv *sp;
+ struct sk_buff *part;
+
+ _enter(",{%u,%u}", jumbo->data_len, jumbo->len);
+
+ sp = rxrpc_skb(jumbo);
+
+ do {
+ sp->hdr.flags &= ~RXRPC_JUMBO_PACKET;
+
+ /* make a clone to represent the first subpacket in what's left
+ * of the jumbo packet */
+ part = skb_clone(jumbo, GFP_ATOMIC);
+ if (!part) {
+ /* simply ditch the tail in the event of ENOMEM */
+ pskb_trim(jumbo, RXRPC_JUMBO_DATALEN);
+ break;
+ }
+ rxrpc_new_skb(part);
+
+ pskb_trim(part, RXRPC_JUMBO_DATALEN);
+
+ if (!pskb_pull(jumbo, RXRPC_JUMBO_DATALEN))
+ goto protocol_error;
+
+ if (skb_copy_bits(jumbo, 0, &jhdr, sizeof(jhdr)) < 0)
+ goto protocol_error;
+ if (!pskb_pull(jumbo, sizeof(jhdr)))
+ BUG();
+
+ sp->hdr.seq = htonl(ntohl(sp->hdr.seq) + 1);
+ sp->hdr.serial = htonl(ntohl(sp->hdr.serial) + 1);
+ sp->hdr.flags = jhdr.flags;
+ sp->hdr._rsvd = jhdr._rsvd;
+
+ _proto("Rx DATA Jumbo %%%u", ntohl(sp->hdr.serial) - 1);
+
+ rxrpc_fast_process_packet(call, part);
+ part = NULL;
+
+ } while (sp->hdr.flags & RXRPC_JUMBO_PACKET);
+
+ rxrpc_fast_process_packet(call, jumbo);
+ _leave("");
+ return;
+
+protocol_error:
+ _debug("protocol error");
+ rxrpc_free_skb(part);
+ rxrpc_free_skb(jumbo);
+ write_lock_bh(&call->state_lock);
+ if (call->state <= RXRPC_CALL_COMPLETE) {
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ call->abort_code = RX_PROTOCOL_ERROR;
+ set_bit(RXRPC_CALL_ABORT, &call->events);
+ rxrpc_queue_call(call);
+ }
+ write_unlock_bh(&call->state_lock);
+ _leave("");
+}
+
+/*
+ * post an incoming packet to the appropriate call/socket to deal with
+ * - must get rid of the sk_buff, either by freeing it or by queuing it
+ */
+static void rxrpc_post_packet_to_call(struct rxrpc_connection *conn,
+ struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_call *call;
+ struct rb_node *p;
+ __be32 call_id;
+
+ _enter("%p,%p", conn, skb);
+
+ read_lock_bh(&conn->lock);
+
+ sp = rxrpc_skb(skb);
+
+ /* look at extant calls by channel number first */
+ call = conn->channels[ntohl(sp->hdr.cid) & RXRPC_CHANNELMASK];
+ if (!call || call->call_id != sp->hdr.callNumber)
+ goto call_not_extant;
+
+ _debug("extant call [%d]", call->state);
+ ASSERTCMP(call->conn, ==, conn);
+
+ read_lock(&call->state_lock);
+ switch (call->state) {
+ case RXRPC_CALL_LOCALLY_ABORTED:
+ if (!test_and_set_bit(RXRPC_CALL_ABORT, &call->events))
+ rxrpc_queue_call(call);
+ case RXRPC_CALL_REMOTELY_ABORTED:
+ case RXRPC_CALL_NETWORK_ERROR:
+ case RXRPC_CALL_DEAD:
+ goto free_unlock;
+ default:
+ break;
+ }
+
+ read_unlock(&call->state_lock);
+ rxrpc_get_call(call);
+ read_unlock_bh(&conn->lock);
+
+ if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA &&
+ sp->hdr.flags & RXRPC_JUMBO_PACKET)
+ rxrpc_process_jumbo_packet(call, skb);
+ else
+ rxrpc_fast_process_packet(call, skb);
+
+ rxrpc_put_call(call);
+ goto done;
+
+call_not_extant:
+ /* search the completed calls in case what we're dealing with is
+ * there */
+ _debug("call not extant");
+
+ call_id = sp->hdr.callNumber;
+ p = conn->calls.rb_node;
+ while (p) {
+ call = rb_entry(p, struct rxrpc_call, conn_node);
+
+ if (call_id < call->call_id)
+ p = p->rb_left;
+ else if (call_id > call->call_id)
+ p = p->rb_right;
+ else
+ goto found_completed_call;
+ }
+
+dead_call:
+ /* it's a either a really old call that we no longer remember or its a
+ * new incoming call */
+ read_unlock_bh(&conn->lock);
+
+ if (sp->hdr.flags & RXRPC_CLIENT_INITIATED &&
+ sp->hdr.seq == __constant_cpu_to_be32(1)) {
+ _debug("incoming call");
+ skb_queue_tail(&conn->trans->local->accept_queue, skb);
+ rxrpc_queue_work(&conn->trans->local->acceptor);
+ goto done;
+ }
+
+ _debug("dead call");
+ skb->priority = RX_CALL_DEAD;
+ rxrpc_reject_packet(conn->trans->local, skb);
+ goto done;
+
+ /* resend last packet of a completed call
+ * - client calls may have been aborted or ACK'd
+ * - server calls may have been aborted
+ */
+found_completed_call:
+ _debug("completed call");
+
+ if (atomic_read(&call->usage) == 0)
+ goto dead_call;
+
+ /* synchronise any state changes */
+ read_lock(&call->state_lock);
+ ASSERTIFCMP(call->state != RXRPC_CALL_CLIENT_FINAL_ACK,
+ call->state, >=, RXRPC_CALL_COMPLETE);
+
+ if (call->state == RXRPC_CALL_LOCALLY_ABORTED ||
+ call->state == RXRPC_CALL_REMOTELY_ABORTED ||
+ call->state == RXRPC_CALL_DEAD) {
+ read_unlock(&call->state_lock);
+ goto dead_call;
+ }
+
+ if (call->conn->in_clientflag) {
+ read_unlock(&call->state_lock);
+ goto dead_call; /* complete server call */
+ }
+
+ _debug("final ack again");
+ rxrpc_get_call(call);
+ set_bit(RXRPC_CALL_ACK_FINAL, &call->events);
+ rxrpc_queue_call(call);
+
+free_unlock:
+ read_unlock(&call->state_lock);
+ read_unlock_bh(&conn->lock);
+ rxrpc_free_skb(skb);
+done:
+ _leave("");
+}
+
+/*
+ * post connection-level events to the connection
+ * - this includes challenges, responses and some aborts
+ */
+static void rxrpc_post_packet_to_conn(struct rxrpc_connection *conn,
+ struct sk_buff *skb)
+{
+ _enter("%p,%p", conn, skb);
+
+ atomic_inc(&conn->usage);
+ skb_queue_tail(&conn->rx_queue, skb);
+ rxrpc_queue_conn(conn);
+}
+
+/*
+ * handle data received on the local endpoint
+ * - may be called in interrupt context
+ */
+void rxrpc_data_ready(struct sock *sk, int count)
+{
+ struct rxrpc_connection *conn;
+ struct rxrpc_transport *trans;
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_local *local;
+ struct rxrpc_peer *peer;
+ struct sk_buff *skb;
+ int ret;
+
+ _enter("%p, %d", sk, count);
+
+ ASSERT(!irqs_disabled());
+
+ read_lock_bh(&rxrpc_local_lock);
+ local = sk->sk_user_data;
+ if (local && atomic_read(&local->usage) > 0)
+ rxrpc_get_local(local);
+ else
+ local = NULL;
+ read_unlock_bh(&rxrpc_local_lock);
+ if (!local) {
+ _leave(" [local dead]");
+ return;
+ }
+
+ skb = skb_recv_datagram(sk, 0, 1, &ret);
+ if (!skb) {
+ rxrpc_put_local(local);
+ if (ret == -EAGAIN)
+ return;
+ _debug("UDP socket error %d", ret);
+ return;
+ }
+
+ rxrpc_new_skb(skb);
+
+ _net("recv skb %p", skb);
+
+ /* we'll probably need to checksum it (didn't call sock_recvmsg) */
+ if (skb_checksum_complete(skb)) {
+ rxrpc_free_skb(skb);
+ rxrpc_put_local(local);
+ _leave(" [CSUM failed]");
+ return;
+ }
+
+ /* the socket buffer we have is owned by UDP, with UDP's data all over
+ * it, but we really want our own */
+ skb_orphan(skb);
+ sp = rxrpc_skb(skb);
+ memset(sp, 0, sizeof(*sp));
+
+ _net("Rx UDP packet from %08x:%04hu",
+ ntohl(ip_hdr(skb)->saddr), ntohs(udp_hdr(skb)->source));
+
+ /* dig out the RxRPC connection details */
+ if (skb_copy_bits(skb, sizeof(struct udphdr), &sp->hdr,
+ sizeof(sp->hdr)) < 0)
+ goto bad_message;
+ if (!pskb_pull(skb, sizeof(struct udphdr) + sizeof(sp->hdr)))
+ BUG();
+
+ _net("Rx RxRPC %s ep=%x call=%x:%x",
+ sp->hdr.flags & RXRPC_CLIENT_INITIATED ? "ToServer" : "ToClient",
+ ntohl(sp->hdr.epoch),
+ ntohl(sp->hdr.cid),
+ ntohl(sp->hdr.callNumber));
+
+ if (sp->hdr.type == 0 || sp->hdr.type >= RXRPC_N_PACKET_TYPES) {
+ _proto("Rx Bad Packet Type %u", sp->hdr.type);
+ goto bad_message;
+ }
+
+ if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA &&
+ (sp->hdr.callNumber == 0 || sp->hdr.seq == 0))
+ goto bad_message;
+
+ peer = rxrpc_find_peer(local, ip_hdr(skb)->saddr, udp_hdr(skb)->source);
+ if (IS_ERR(peer))
+ goto cant_route_call;
+
+ trans = rxrpc_find_transport(local, peer);
+ rxrpc_put_peer(peer);
+ if (!trans)
+ goto cant_route_call;
+
+ conn = rxrpc_find_connection(trans, &sp->hdr);
+ rxrpc_put_transport(trans);
+ if (!conn)
+ goto cant_route_call;
+
+ _debug("CONN %p {%d}", conn, conn->debug_id);
+
+ if (sp->hdr.callNumber == 0)
+ rxrpc_post_packet_to_conn(conn, skb);
+ else
+ rxrpc_post_packet_to_call(conn, skb);
+ rxrpc_put_connection(conn);
+ rxrpc_put_local(local);
+ return;
+
+cant_route_call:
+ _debug("can't route call");
+ if (sp->hdr.flags & RXRPC_CLIENT_INITIATED &&
+ sp->hdr.type == RXRPC_PACKET_TYPE_DATA) {
+ if (sp->hdr.seq == __constant_cpu_to_be32(1)) {
+ _debug("first packet");
+ skb_queue_tail(&local->accept_queue, skb);
+ rxrpc_queue_work(&local->acceptor);
+ rxrpc_put_local(local);
+ _leave(" [incoming]");
+ return;
+ }
+ skb->priority = RX_INVALID_OPERATION;
+ } else {
+ skb->priority = RX_CALL_DEAD;
+ }
+
+ _debug("reject");
+ rxrpc_reject_packet(local, skb);
+ rxrpc_put_local(local);
+ _leave(" [no call]");
+ return;
+
+bad_message:
+ skb->priority = RX_PROTOCOL_ERROR;
+ rxrpc_reject_packet(local, skb);
+ rxrpc_put_local(local);
+ _leave(" [badmsg]");
+}
--- /dev/null
+/* AF_RXRPC internal definitions
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <rxrpc/packet.h>
+
+#if 0
+#define CHECK_SLAB_OKAY(X) \
+ BUG_ON(atomic_read((X)) >> (sizeof(atomic_t) - 2) == \
+ (POISON_FREE << 8 | POISON_FREE))
+#else
+#define CHECK_SLAB_OKAY(X) do {} while(0)
+#endif
+
+#define FCRYPT_BSIZE 8
+struct rxrpc_crypt {
+ union {
+ u8 x[FCRYPT_BSIZE];
+ u32 n[2];
+ };
+} __attribute__((aligned(8)));
+
+#define rxrpc_queue_work(WS) queue_work(rxrpc_workqueue, (WS))
+#define rxrpc_queue_delayed_work(WS,D) \
+ queue_delayed_work(rxrpc_workqueue, (WS), (D))
+
+#define rxrpc_queue_call(CALL) rxrpc_queue_work(&(CALL)->processor)
+#define rxrpc_queue_conn(CONN) rxrpc_queue_work(&(CONN)->processor)
+
+/*
+ * sk_state for RxRPC sockets
+ */
+enum {
+ RXRPC_UNCONNECTED = 0,
+ RXRPC_CLIENT_BOUND, /* client local address bound */
+ RXRPC_CLIENT_CONNECTED, /* client is connected */
+ RXRPC_SERVER_BOUND, /* server local address bound */
+ RXRPC_SERVER_LISTENING, /* server listening for connections */
+ RXRPC_CLOSE, /* socket is being closed */
+};
+
+/*
+ * RxRPC socket definition
+ */
+struct rxrpc_sock {
+ /* WARNING: sk has to be the first member */
+ struct sock sk;
+ rxrpc_interceptor_t interceptor; /* kernel service Rx interceptor function */
+ struct rxrpc_local *local; /* local endpoint */
+ struct rxrpc_transport *trans; /* transport handler */
+ struct rxrpc_conn_bundle *bundle; /* virtual connection bundle */
+ struct rxrpc_connection *conn; /* exclusive virtual connection */
+ struct list_head listen_link; /* link in the local endpoint's listen list */
+ struct list_head secureq; /* calls awaiting connection security clearance */
+ struct list_head acceptq; /* calls awaiting acceptance */
+ struct key *key; /* security for this socket */
+ struct key *securities; /* list of server security descriptors */
+ struct rb_root calls; /* outstanding calls on this socket */
+ unsigned long flags;
+#define RXRPC_SOCK_EXCLUSIVE_CONN 1 /* exclusive connection for a client socket */
+ rwlock_t call_lock; /* lock for calls */
+ u32 min_sec_level; /* minimum security level */
+#define RXRPC_SECURITY_MAX RXRPC_SECURITY_ENCRYPT
+ struct sockaddr_rxrpc srx; /* local address */
+ sa_family_t proto; /* protocol created with */
+ __be16 service_id; /* service ID of local/remote service */
+};
+
+#define rxrpc_sk(__sk) container_of((__sk), struct rxrpc_sock, sk)
+
+/*
+ * RxRPC socket buffer private variables
+ * - max 48 bytes (struct sk_buff::cb)
+ */
+struct rxrpc_skb_priv {
+ struct rxrpc_call *call; /* call with which associated */
+ unsigned long resend_at; /* time in jiffies at which to resend */
+ union {
+ unsigned offset; /* offset into buffer of next read */
+ int remain; /* amount of space remaining for next write */
+ u32 error; /* network error code */
+ bool need_resend; /* T if needs resending */
+ };
+
+ struct rxrpc_header hdr; /* RxRPC packet header from this packet */
+};
+
+#define rxrpc_skb(__skb) ((struct rxrpc_skb_priv *) &(__skb)->cb)
+
+enum rxrpc_command {
+ RXRPC_CMD_SEND_DATA, /* send data message */
+ RXRPC_CMD_SEND_ABORT, /* request abort generation */
+ RXRPC_CMD_ACCEPT, /* [server] accept incoming call */
+ RXRPC_CMD_REJECT_BUSY, /* [server] reject a call as busy */
+};
+
+/*
+ * RxRPC security module interface
+ */
+struct rxrpc_security {
+ struct module *owner; /* providing module */
+ struct list_head link; /* link in master list */
+ const char *name; /* name of this service */
+ u8 security_index; /* security type provided */
+
+ /* initialise a connection's security */
+ int (*init_connection_security)(struct rxrpc_connection *);
+
+ /* prime a connection's packet security */
+ void (*prime_packet_security)(struct rxrpc_connection *);
+
+ /* impose security on a packet */
+ int (*secure_packet)(const struct rxrpc_call *,
+ struct sk_buff *,
+ size_t,
+ void *);
+
+ /* verify the security on a received packet */
+ int (*verify_packet)(const struct rxrpc_call *, struct sk_buff *,
+ u32 *);
+
+ /* issue a challenge */
+ int (*issue_challenge)(struct rxrpc_connection *);
+
+ /* respond to a challenge */
+ int (*respond_to_challenge)(struct rxrpc_connection *,
+ struct sk_buff *,
+ u32 *);
+
+ /* verify a response */
+ int (*verify_response)(struct rxrpc_connection *,
+ struct sk_buff *,
+ u32 *);
+
+ /* clear connection security */
+ void (*clear)(struct rxrpc_connection *);
+};
+
+/*
+ * RxRPC local transport endpoint definition
+ * - matched by local port, address and protocol type
+ */
+struct rxrpc_local {
+ struct socket *socket; /* my UDP socket */
+ struct work_struct destroyer; /* endpoint destroyer */
+ struct work_struct acceptor; /* incoming call processor */
+ struct work_struct rejecter; /* packet reject writer */
+ struct list_head services; /* services listening on this endpoint */
+ struct list_head link; /* link in endpoint list */
+ struct rw_semaphore defrag_sem; /* control re-enablement of IP DF bit */
+ struct sk_buff_head accept_queue; /* incoming calls awaiting acceptance */
+ struct sk_buff_head reject_queue; /* packets awaiting rejection */
+ spinlock_t lock; /* access lock */
+ rwlock_t services_lock; /* lock for services list */
+ atomic_t usage;
+ int debug_id; /* debug ID for printks */
+ volatile char error_rcvd; /* T if received ICMP error outstanding */
+ struct sockaddr_rxrpc srx; /* local address */
+};
+
+/*
+ * RxRPC remote transport endpoint definition
+ * - matched by remote port, address and protocol type
+ * - holds the connection ID counter for connections between the two endpoints
+ */
+struct rxrpc_peer {
+ struct work_struct destroyer; /* peer destroyer */
+ struct list_head link; /* link in master peer list */
+ struct list_head error_targets; /* targets for net error distribution */
+ spinlock_t lock; /* access lock */
+ atomic_t usage;
+ unsigned if_mtu; /* interface MTU for this peer */
+ unsigned mtu; /* network MTU for this peer */
+ unsigned maxdata; /* data size (MTU - hdrsize) */
+ unsigned short hdrsize; /* header size (IP + UDP + RxRPC) */
+ int debug_id; /* debug ID for printks */
+ int net_error; /* network error distributed */
+ struct sockaddr_rxrpc srx; /* remote address */
+
+ /* calculated RTT cache */
+#define RXRPC_RTT_CACHE_SIZE 32
+ suseconds_t rtt; /* current RTT estimate (in uS) */
+ unsigned rtt_point; /* next entry at which to insert */
+ unsigned rtt_usage; /* amount of cache actually used */
+ suseconds_t rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* calculated RTT cache */
+};
+
+/*
+ * RxRPC point-to-point transport / connection manager definition
+ * - handles a bundle of connections between two endpoints
+ * - matched by { local, peer }
+ */
+struct rxrpc_transport {
+ struct rxrpc_local *local; /* local transport endpoint */
+ struct rxrpc_peer *peer; /* remote transport endpoint */
+ struct work_struct error_handler; /* network error distributor */
+ struct rb_root bundles; /* client connection bundles on this transport */
+ struct rb_root client_conns; /* client connections on this transport */
+ struct rb_root server_conns; /* server connections on this transport */
+ struct list_head link; /* link in master session list */
+ struct sk_buff_head error_queue; /* error packets awaiting processing */
+ time_t put_time; /* time at which to reap */
+ spinlock_t client_lock; /* client connection allocation lock */
+ rwlock_t conn_lock; /* lock for active/dead connections */
+ atomic_t usage;
+ int debug_id; /* debug ID for printks */
+ unsigned int conn_idcounter; /* connection ID counter (client) */
+};
+
+/*
+ * RxRPC client connection bundle
+ * - matched by { transport, service_id, key }
+ */
+struct rxrpc_conn_bundle {
+ struct rb_node node; /* node in transport's lookup tree */
+ struct list_head unused_conns; /* unused connections in this bundle */
+ struct list_head avail_conns; /* available connections in this bundle */
+ struct list_head busy_conns; /* busy connections in this bundle */
+ struct key *key; /* security for this bundle */
+ wait_queue_head_t chanwait; /* wait for channel to become available */
+ atomic_t usage;
+ int debug_id; /* debug ID for printks */
+ unsigned short num_conns; /* number of connections in this bundle */
+ __be16 service_id; /* service ID */
+ uint8_t security_ix; /* security type */
+};
+
+/*
+ * RxRPC connection definition
+ * - matched by { transport, service_id, conn_id, direction, key }
+ * - each connection can only handle four simultaneous calls
+ */
+struct rxrpc_connection {
+ struct rxrpc_transport *trans; /* transport session */
+ struct rxrpc_conn_bundle *bundle; /* connection bundle (client) */
+ struct work_struct processor; /* connection event processor */
+ struct rb_node node; /* node in transport's lookup tree */
+ struct list_head link; /* link in master connection list */
+ struct list_head bundle_link; /* link in bundle */
+ struct rb_root calls; /* calls on this connection */
+ struct sk_buff_head rx_queue; /* received conn-level packets */
+ struct rxrpc_call *channels[RXRPC_MAXCALLS]; /* channels (active calls) */
+ struct rxrpc_security *security; /* applied security module */
+ struct key *key; /* security for this connection (client) */
+ struct key *server_key; /* security for this service */
+ struct crypto_blkcipher *cipher; /* encryption handle */
+ struct rxrpc_crypt csum_iv; /* packet checksum base */
+ unsigned long events;
+#define RXRPC_CONN_CHALLENGE 0 /* send challenge packet */
+ time_t put_time; /* time at which to reap */
+ rwlock_t lock; /* access lock */
+ spinlock_t state_lock; /* state-change lock */
+ atomic_t usage;
+ u32 real_conn_id; /* connection ID (host-endian) */
+ enum { /* current state of connection */
+ RXRPC_CONN_UNUSED, /* - connection not yet attempted */
+ RXRPC_CONN_CLIENT, /* - client connection */
+ RXRPC_CONN_SERVER_UNSECURED, /* - server unsecured connection */
+ RXRPC_CONN_SERVER_CHALLENGING, /* - server challenging for security */
+ RXRPC_CONN_SERVER, /* - server secured connection */
+ RXRPC_CONN_REMOTELY_ABORTED, /* - conn aborted by peer */
+ RXRPC_CONN_LOCALLY_ABORTED, /* - conn aborted locally */
+ RXRPC_CONN_NETWORK_ERROR, /* - conn terminated by network error */
+ } state;
+ int error; /* error code for local abort */
+ int debug_id; /* debug ID for printks */
+ unsigned call_counter; /* call ID counter */
+ atomic_t serial; /* packet serial number counter */
+ atomic_t hi_serial; /* highest serial number received */
+ u8 avail_calls; /* number of calls available */
+ u8 size_align; /* data size alignment (for security) */
+ u8 header_size; /* rxrpc + security header size */
+ u8 security_size; /* security header size */
+ u32 security_level; /* security level negotiated */
+ u32 security_nonce; /* response re-use preventer */
+
+ /* the following are all in net order */
+ __be32 epoch; /* epoch of this connection */
+ __be32 cid; /* connection ID */
+ __be16 service_id; /* service ID */
+ u8 security_ix; /* security type */
+ u8 in_clientflag; /* RXRPC_CLIENT_INITIATED if we are server */
+ u8 out_clientflag; /* RXRPC_CLIENT_INITIATED if we are client */
+};
+
+/*
+ * RxRPC call definition
+ * - matched by { connection, call_id }
+ */
+struct rxrpc_call {
+ struct rxrpc_connection *conn; /* connection carrying call */
+ struct rxrpc_sock *socket; /* socket responsible */
+ struct timer_list lifetimer; /* lifetime remaining on call */
+ struct timer_list deadspan; /* reap timer for re-ACK'ing, etc */
+ struct timer_list ack_timer; /* ACK generation timer */
+ struct timer_list resend_timer; /* Tx resend timer */
+ struct work_struct destroyer; /* call destroyer */
+ struct work_struct processor; /* packet processor and ACK generator */
+ struct list_head link; /* link in master call list */
+ struct list_head error_link; /* link in error distribution list */
+ struct list_head accept_link; /* calls awaiting acceptance */
+ struct rb_node sock_node; /* node in socket call tree */
+ struct rb_node conn_node; /* node in connection call tree */
+ struct sk_buff_head rx_queue; /* received packets */
+ struct sk_buff_head rx_oos_queue; /* packets received out of sequence */
+ struct sk_buff *tx_pending; /* Tx socket buffer being filled */
+ wait_queue_head_t tx_waitq; /* wait for Tx window space to become available */
+ unsigned long user_call_ID; /* user-defined call ID */
+ unsigned long creation_jif; /* time of call creation */
+ unsigned long flags;
+#define RXRPC_CALL_RELEASED 0 /* call has been released - no more message to userspace */
+#define RXRPC_CALL_TERMINAL_MSG 1 /* call has given the socket its final message */
+#define RXRPC_CALL_RCVD_LAST 2 /* all packets received */
+#define RXRPC_CALL_RUN_RTIMER 3 /* Tx resend timer started */
+#define RXRPC_CALL_TX_SOFT_ACK 4 /* sent some soft ACKs */
+#define RXRPC_CALL_PROC_BUSY 5 /* the processor is busy */
+#define RXRPC_CALL_INIT_ACCEPT 6 /* acceptance was initiated */
+#define RXRPC_CALL_HAS_USERID 7 /* has a user ID attached */
+#define RXRPC_CALL_EXPECT_OOS 8 /* expect out of sequence packets */
+ unsigned long events;
+#define RXRPC_CALL_RCVD_ACKALL 0 /* ACKALL or reply received */
+#define RXRPC_CALL_RCVD_BUSY 1 /* busy packet received */
+#define RXRPC_CALL_RCVD_ABORT 2 /* abort packet received */
+#define RXRPC_CALL_RCVD_ERROR 3 /* network error received */
+#define RXRPC_CALL_ACK_FINAL 4 /* need to generate final ACK (and release call) */
+#define RXRPC_CALL_ACK 5 /* need to generate ACK */
+#define RXRPC_CALL_REJECT_BUSY 6 /* need to generate busy message */
+#define RXRPC_CALL_ABORT 7 /* need to generate abort */
+#define RXRPC_CALL_CONN_ABORT 8 /* local connection abort generated */
+#define RXRPC_CALL_RESEND_TIMER 9 /* Tx resend timer expired */
+#define RXRPC_CALL_RESEND 10 /* Tx resend required */
+#define RXRPC_CALL_DRAIN_RX_OOS 11 /* drain the Rx out of sequence queue */
+#define RXRPC_CALL_LIFE_TIMER 12 /* call's lifetimer ran out */
+#define RXRPC_CALL_ACCEPTED 13 /* incoming call accepted by userspace app */
+#define RXRPC_CALL_SECURED 14 /* incoming call's connection is now secure */
+#define RXRPC_CALL_POST_ACCEPT 15 /* need to post an "accept?" message to the app */
+#define RXRPC_CALL_RELEASE 16 /* need to release the call's resources */
+
+ spinlock_t lock;
+ rwlock_t state_lock; /* lock for state transition */
+ atomic_t usage;
+ atomic_t sequence; /* Tx data packet sequence counter */
+ u32 abort_code; /* local/remote abort code */
+ enum { /* current state of call */
+ RXRPC_CALL_CLIENT_SEND_REQUEST, /* - client sending request phase */
+ RXRPC_CALL_CLIENT_AWAIT_REPLY, /* - client awaiting reply */
+ RXRPC_CALL_CLIENT_RECV_REPLY, /* - client receiving reply phase */
+ RXRPC_CALL_CLIENT_FINAL_ACK, /* - client sending final ACK phase */
+ RXRPC_CALL_SERVER_SECURING, /* - server securing request connection */
+ RXRPC_CALL_SERVER_ACCEPTING, /* - server accepting request */
+ RXRPC_CALL_SERVER_RECV_REQUEST, /* - server receiving request */
+ RXRPC_CALL_SERVER_ACK_REQUEST, /* - server pending ACK of request */
+ RXRPC_CALL_SERVER_SEND_REPLY, /* - server sending reply */
+ RXRPC_CALL_SERVER_AWAIT_ACK, /* - server awaiting final ACK */
+ RXRPC_CALL_COMPLETE, /* - call completed */
+ RXRPC_CALL_SERVER_BUSY, /* - call rejected by busy server */
+ RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */
+ RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */
+ RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */
+ RXRPC_CALL_DEAD, /* - call is dead */
+ } state;
+ int debug_id; /* debug ID for printks */
+ u8 channel; /* connection channel occupied by this call */
+
+ /* transmission-phase ACK management */
+ uint8_t acks_head; /* offset into window of first entry */
+ uint8_t acks_tail; /* offset into window of last entry */
+ uint8_t acks_winsz; /* size of un-ACK'd window */
+ uint8_t acks_unacked; /* lowest unacked packet in last ACK received */
+ int acks_latest; /* serial number of latest ACK received */
+ rxrpc_seq_t acks_hard; /* highest definitively ACK'd msg seq */
+ unsigned long *acks_window; /* sent packet window
+ * - elements are pointers with LSB set if ACK'd
+ */
+
+ /* receive-phase ACK management */
+ rxrpc_seq_t rx_data_expect; /* next data seq ID expected to be received */
+ rxrpc_seq_t rx_data_post; /* next data seq ID expected to be posted */
+ rxrpc_seq_t rx_data_recv; /* last data seq ID encountered by recvmsg */
+ rxrpc_seq_t rx_data_eaten; /* last data seq ID consumed by recvmsg */
+ rxrpc_seq_t rx_first_oos; /* first packet in rx_oos_queue (or 0) */
+ rxrpc_seq_t ackr_win_top; /* top of ACK window (rx_data_eaten is bottom) */
+ rxrpc_seq_net_t ackr_prev_seq; /* previous sequence number received */
+ uint8_t ackr_reason; /* reason to ACK */
+ __be32 ackr_serial; /* serial of packet being ACK'd */
+ atomic_t ackr_not_idle; /* number of packets in Rx queue */
+
+ /* received packet records, 1 bit per record */
+#define RXRPC_ACKR_WINDOW_ASZ DIV_ROUND_UP(RXRPC_MAXACKS, BITS_PER_LONG)
+ unsigned long ackr_window[RXRPC_ACKR_WINDOW_ASZ + 1];
+
+ /* the following should all be in net order */
+ __be32 cid; /* connection ID + channel index */
+ __be32 call_id; /* call ID on connection */
+};
+
+/*
+ * RxRPC key for Kerberos (type-2 security)
+ */
+struct rxkad_key {
+ u16 security_index; /* RxRPC header security index */
+ u16 ticket_len; /* length of ticket[] */
+ u32 expiry; /* time at which expires */
+ u32 kvno; /* key version number */
+ u8 session_key[8]; /* DES session key */
+ u8 ticket[0]; /* the encrypted ticket */
+};
+
+struct rxrpc_key_payload {
+ struct rxkad_key k;
+};
+
+/*
+ * locally abort an RxRPC call
+ */
+static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
+{
+ write_lock_bh(&call->state_lock);
+ if (call->state < RXRPC_CALL_COMPLETE) {
+ call->abort_code = abort_code;
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ set_bit(RXRPC_CALL_ABORT, &call->events);
+ }
+ write_unlock_bh(&call->state_lock);
+}
+
+/*
+ * af_rxrpc.c
+ */
+extern atomic_t rxrpc_n_skbs;
+extern __be32 rxrpc_epoch;
+extern atomic_t rxrpc_debug_id;
+extern struct workqueue_struct *rxrpc_workqueue;
+
+/*
+ * ar-accept.c
+ */
+extern void rxrpc_accept_incoming_calls(struct work_struct *);
+extern struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *,
+ unsigned long);
+extern int rxrpc_reject_call(struct rxrpc_sock *);
+
+/*
+ * ar-ack.c
+ */
+extern void __rxrpc_propose_ACK(struct rxrpc_call *, uint8_t, __be32, bool);
+extern void rxrpc_propose_ACK(struct rxrpc_call *, uint8_t, __be32, bool);
+extern void rxrpc_process_call(struct work_struct *);
+
+/*
+ * ar-call.c
+ */
+extern struct kmem_cache *rxrpc_call_jar;
+extern struct list_head rxrpc_calls;
+extern rwlock_t rxrpc_call_lock;
+
+extern struct rxrpc_call *rxrpc_get_client_call(struct rxrpc_sock *,
+ struct rxrpc_transport *,
+ struct rxrpc_conn_bundle *,
+ unsigned long, int, gfp_t);
+extern struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
+ struct rxrpc_connection *,
+ struct rxrpc_header *, gfp_t);
+extern struct rxrpc_call *rxrpc_find_server_call(struct rxrpc_sock *,
+ unsigned long);
+extern void rxrpc_release_call(struct rxrpc_call *);
+extern void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
+extern void __rxrpc_put_call(struct rxrpc_call *);
+extern void __exit rxrpc_destroy_all_calls(void);
+
+/*
+ * ar-connection.c
+ */
+extern struct list_head rxrpc_connections;
+extern rwlock_t rxrpc_connection_lock;
+
+extern struct rxrpc_conn_bundle *rxrpc_get_bundle(struct rxrpc_sock *,
+ struct rxrpc_transport *,
+ struct key *,
+ __be16, gfp_t);
+extern void rxrpc_put_bundle(struct rxrpc_transport *,
+ struct rxrpc_conn_bundle *);
+extern int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_transport *,
+ struct rxrpc_conn_bundle *, struct rxrpc_call *,
+ gfp_t);
+extern void rxrpc_put_connection(struct rxrpc_connection *);
+extern void __exit rxrpc_destroy_all_connections(void);
+extern struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *,
+ struct rxrpc_header *);
+extern struct rxrpc_connection *
+rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_header *,
+ gfp_t);
+
+/*
+ * ar-connevent.c
+ */
+extern void rxrpc_process_connection(struct work_struct *);
+extern void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *);
+extern void rxrpc_reject_packets(struct work_struct *);
+
+/*
+ * ar-error.c
+ */
+extern void rxrpc_UDP_error_report(struct sock *);
+extern void rxrpc_UDP_error_handler(struct work_struct *);
+
+/*
+ * ar-input.c
+ */
+extern unsigned long rxrpc_ack_timeout;
+extern const char *rxrpc_pkts[];
+
+extern void rxrpc_data_ready(struct sock *, int);
+extern int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool,
+ bool);
+extern void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *);
+
+/*
+ * ar-local.c
+ */
+extern rwlock_t rxrpc_local_lock;
+extern struct rxrpc_local *rxrpc_lookup_local(struct sockaddr_rxrpc *);
+extern void rxrpc_put_local(struct rxrpc_local *);
+extern void __exit rxrpc_destroy_all_locals(void);
+
+/*
+ * ar-key.c
+ */
+extern struct key_type key_type_rxrpc;
+extern struct key_type key_type_rxrpc_s;
+
+extern int rxrpc_request_key(struct rxrpc_sock *, char __user *, int);
+extern int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int);
+extern int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *,
+ time_t, u32);
+
+/*
+ * ar-output.c
+ */
+extern int rxrpc_resend_timeout;
+
+extern int rxrpc_send_packet(struct rxrpc_transport *, struct sk_buff *);
+extern int rxrpc_client_sendmsg(struct kiocb *, struct rxrpc_sock *,
+ struct rxrpc_transport *, struct msghdr *,
+ size_t);
+extern int rxrpc_server_sendmsg(struct kiocb *, struct rxrpc_sock *,
+ struct msghdr *, size_t);
+
+/*
+ * ar-peer.c
+ */
+extern struct rxrpc_peer *rxrpc_get_peer(struct sockaddr_rxrpc *, gfp_t);
+extern void rxrpc_put_peer(struct rxrpc_peer *);
+extern struct rxrpc_peer *rxrpc_find_peer(struct rxrpc_local *,
+ __be32, __be16);
+extern void __exit rxrpc_destroy_all_peers(void);
+
+/*
+ * ar-proc.c
+ */
+extern const char *rxrpc_call_states[];
+extern struct file_operations rxrpc_call_seq_fops;
+extern struct file_operations rxrpc_connection_seq_fops;
+
+/*
+ * ar-recvmsg.c
+ */
+extern void rxrpc_remove_user_ID(struct rxrpc_sock *, struct rxrpc_call *);
+extern int rxrpc_recvmsg(struct kiocb *, struct socket *, struct msghdr *,
+ size_t, int);
+
+/*
+ * ar-security.c
+ */
+extern int rxrpc_register_security(struct rxrpc_security *);
+extern void rxrpc_unregister_security(struct rxrpc_security *);
+extern int rxrpc_init_client_conn_security(struct rxrpc_connection *);
+extern int rxrpc_init_server_conn_security(struct rxrpc_connection *);
+extern int rxrpc_secure_packet(const struct rxrpc_call *, struct sk_buff *,
+ size_t, void *);
+extern int rxrpc_verify_packet(const struct rxrpc_call *, struct sk_buff *,
+ u32 *);
+extern void rxrpc_clear_conn_security(struct rxrpc_connection *);
+
+/*
+ * ar-skbuff.c
+ */
+extern void rxrpc_packet_destructor(struct sk_buff *);
+
+/*
+ * ar-transport.c
+ */
+extern struct rxrpc_transport *rxrpc_get_transport(struct rxrpc_local *,
+ struct rxrpc_peer *,
+ gfp_t);
+extern void rxrpc_put_transport(struct rxrpc_transport *);
+extern void __exit rxrpc_destroy_all_transports(void);
+extern struct rxrpc_transport *rxrpc_find_transport(struct rxrpc_local *,
+ struct rxrpc_peer *);
+
+/*
+ * debug tracing
+ */
+extern unsigned rxrpc_debug;
+
+#define dbgprintk(FMT,...) \
+ printk("[%x%-6.6s] "FMT"\n", smp_processor_id(), current->comm ,##__VA_ARGS__)
+
+/* make sure we maintain the format strings, even when debugging is disabled */
+static inline __attribute__((format(printf,1,2)))
+void _dbprintk(const char *fmt, ...)
+{
+}
+
+#define kenter(FMT,...) dbgprintk("==> %s("FMT")",__FUNCTION__ ,##__VA_ARGS__)
+#define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__FUNCTION__ ,##__VA_ARGS__)
+#define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__)
+#define kproto(FMT,...) dbgprintk("### "FMT ,##__VA_ARGS__)
+#define knet(FMT,...) dbgprintk("@@@ "FMT ,##__VA_ARGS__)
+
+
+#if defined(__KDEBUG)
+#define _enter(FMT,...) kenter(FMT,##__VA_ARGS__)
+#define _leave(FMT,...) kleave(FMT,##__VA_ARGS__)
+#define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__)
+#define _proto(FMT,...) kproto(FMT,##__VA_ARGS__)
+#define _net(FMT,...) knet(FMT,##__VA_ARGS__)
+
+#elif defined(CONFIG_AF_RXRPC_DEBUG)
+#define RXRPC_DEBUG_KENTER 0x01
+#define RXRPC_DEBUG_KLEAVE 0x02
+#define RXRPC_DEBUG_KDEBUG 0x04
+#define RXRPC_DEBUG_KPROTO 0x08
+#define RXRPC_DEBUG_KNET 0x10
+
+#define _enter(FMT,...) \
+do { \
+ if (unlikely(rxrpc_debug & RXRPC_DEBUG_KENTER)) \
+ kenter(FMT,##__VA_ARGS__); \
+} while (0)
+
+#define _leave(FMT,...) \
+do { \
+ if (unlikely(rxrpc_debug & RXRPC_DEBUG_KLEAVE)) \
+ kleave(FMT,##__VA_ARGS__); \
+} while (0)
+
+#define _debug(FMT,...) \
+do { \
+ if (unlikely(rxrpc_debug & RXRPC_DEBUG_KDEBUG)) \
+ kdebug(FMT,##__VA_ARGS__); \
+} while (0)
+
+#define _proto(FMT,...) \
+do { \
+ if (unlikely(rxrpc_debug & RXRPC_DEBUG_KPROTO)) \
+ kproto(FMT,##__VA_ARGS__); \
+} while (0)
+
+#define _net(FMT,...) \
+do { \
+ if (unlikely(rxrpc_debug & RXRPC_DEBUG_KNET)) \
+ knet(FMT,##__VA_ARGS__); \
+} while (0)
+
+#else
+#define _enter(FMT,...) _dbprintk("==> %s("FMT")",__FUNCTION__ ,##__VA_ARGS__)
+#define _leave(FMT,...) _dbprintk("<== %s()"FMT"",__FUNCTION__ ,##__VA_ARGS__)
+#define _debug(FMT,...) _dbprintk(" "FMT ,##__VA_ARGS__)
+#define _proto(FMT,...) _dbprintk("### "FMT ,##__VA_ARGS__)
+#define _net(FMT,...) _dbprintk("@@@ "FMT ,##__VA_ARGS__)
+#endif
+
+/*
+ * debug assertion checking
+ */
+#if 1 // defined(__KDEBUGALL)
+
+#define ASSERT(X) \
+do { \
+ if (unlikely(!(X))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "RxRPC: Assertion failed\n"); \
+ BUG(); \
+ } \
+} while(0)
+
+#define ASSERTCMP(X, OP, Y) \
+do { \
+ if (unlikely(!((X) OP (Y)))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "RxRPC: Assertion failed\n"); \
+ printk(KERN_ERR "%lu " #OP " %lu is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ BUG(); \
+ } \
+} while(0)
+
+#define ASSERTIF(C, X) \
+do { \
+ if (unlikely((C) && !(X))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "RxRPC: Assertion failed\n"); \
+ BUG(); \
+ } \
+} while(0)
+
+#define ASSERTIFCMP(C, X, OP, Y) \
+do { \
+ if (unlikely((C) && !((X) OP (Y)))) { \
+ printk(KERN_ERR "\n"); \
+ printk(KERN_ERR "RxRPC: Assertion failed\n"); \
+ printk(KERN_ERR "%lu " #OP " %lu is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \
+ (unsigned long)(X), (unsigned long)(Y)); \
+ BUG(); \
+ } \
+} while(0)
+
+#else
+
+#define ASSERT(X) \
+do { \
+} while(0)
+
+#define ASSERTCMP(X, OP, Y) \
+do { \
+} while(0)
+
+#define ASSERTIF(C, X) \
+do { \
+} while(0)
+
+#define ASSERTIFCMP(C, X, OP, Y) \
+do { \
+} while(0)
+
+#endif /* __KDEBUGALL */
+
+/*
+ * socket buffer accounting / leak finding
+ */
+static inline void __rxrpc_new_skb(struct sk_buff *skb, const char *fn)
+{
+ //_net("new skb %p %s [%d]", skb, fn, atomic_read(&rxrpc_n_skbs));
+ //atomic_inc(&rxrpc_n_skbs);
+}
+
+#define rxrpc_new_skb(skb) __rxrpc_new_skb((skb), __func__)
+
+static inline void __rxrpc_kill_skb(struct sk_buff *skb, const char *fn)
+{
+ //_net("kill skb %p %s [%d]", skb, fn, atomic_read(&rxrpc_n_skbs));
+ //atomic_dec(&rxrpc_n_skbs);
+}
+
+#define rxrpc_kill_skb(skb) __rxrpc_kill_skb((skb), __func__)
+
+static inline void __rxrpc_free_skb(struct sk_buff *skb, const char *fn)
+{
+ if (skb) {
+ CHECK_SLAB_OKAY(&skb->users);
+ //_net("free skb %p %s [%d]",
+ // skb, fn, atomic_read(&rxrpc_n_skbs));
+ //atomic_dec(&rxrpc_n_skbs);
+ kfree_skb(skb);
+ }
+}
+
+#define rxrpc_free_skb(skb) __rxrpc_free_skb((skb), __func__)
+
+static inline void rxrpc_purge_queue(struct sk_buff_head *list)
+{
+ struct sk_buff *skb;
+ while ((skb = skb_dequeue((list))) != NULL)
+ rxrpc_free_skb(skb);
+}
+
+static inline void __rxrpc_get_local(struct rxrpc_local *local, const char *f)
+{
+ CHECK_SLAB_OKAY(&local->usage);
+ if (atomic_inc_return(&local->usage) == 1)
+ printk("resurrected (%s)\n", f);
+}
+
+#define rxrpc_get_local(LOCAL) __rxrpc_get_local((LOCAL), __func__)
+
+#define rxrpc_get_call(CALL) \
+do { \
+ CHECK_SLAB_OKAY(&(CALL)->usage); \
+ if (atomic_inc_return(&(CALL)->usage) == 1) \
+ BUG(); \
+} while(0)
+
+#define rxrpc_put_call(CALL) \
+do { \
+ __rxrpc_put_call(CALL); \
+} while(0)
--- /dev/null
+/* RxRPC key management
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * RxRPC keys should have a description of describing their purpose:
+ * "afs@CAMBRIDGE.REDHAT.COM>
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/key.h>
+#include <linux/crypto.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <keys/rxrpc-type.h>
+#include <keys/user-type.h>
+#include "ar-internal.h"
+
+static int rxrpc_instantiate(struct key *, const void *, size_t);
+static int rxrpc_instantiate_s(struct key *, const void *, size_t);
+static void rxrpc_destroy(struct key *);
+static void rxrpc_destroy_s(struct key *);
+static void rxrpc_describe(const struct key *, struct seq_file *);
+
+/*
+ * rxrpc defined keys take an arbitrary string as the description and an
+ * arbitrary blob of data as the payload
+ */
+struct key_type key_type_rxrpc = {
+ .name = "rxrpc",
+ .instantiate = rxrpc_instantiate,
+ .match = user_match,
+ .destroy = rxrpc_destroy,
+ .describe = rxrpc_describe,
+};
+
+EXPORT_SYMBOL(key_type_rxrpc);
+
+/*
+ * rxrpc server defined keys take "<serviceId>:<securityIndex>" as the
+ * description and an 8-byte decryption key as the payload
+ */
+struct key_type key_type_rxrpc_s = {
+ .name = "rxrpc_s",
+ .instantiate = rxrpc_instantiate_s,
+ .match = user_match,
+ .destroy = rxrpc_destroy_s,
+ .describe = rxrpc_describe,
+};
+
+/*
+ * instantiate an rxrpc defined key
+ * data should be of the form:
+ * OFFSET LEN CONTENT
+ * 0 4 key interface version number
+ * 4 2 security index (type)
+ * 6 2 ticket length
+ * 8 4 key expiry time (time_t)
+ * 12 4 kvno
+ * 16 8 session key
+ * 24 [len] ticket
+ *
+ * if no data is provided, then a no-security key is made
+ */
+static int rxrpc_instantiate(struct key *key, const void *data, size_t datalen)
+{
+ const struct rxkad_key *tsec;
+ struct rxrpc_key_payload *upayload;
+ size_t plen;
+ u32 kver;
+ int ret;
+
+ _enter("{%x},,%zu", key_serial(key), datalen);
+
+ /* handle a no-security key */
+ if (!data && datalen == 0)
+ return 0;
+
+ /* get the key interface version number */
+ ret = -EINVAL;
+ if (datalen <= 4 || !data)
+ goto error;
+ memcpy(&kver, data, sizeof(kver));
+ data += sizeof(kver);
+ datalen -= sizeof(kver);
+
+ _debug("KEY I/F VERSION: %u", kver);
+
+ ret = -EKEYREJECTED;
+ if (kver != 1)
+ goto error;
+
+ /* deal with a version 1 key */
+ ret = -EINVAL;
+ if (datalen < sizeof(*tsec))
+ goto error;
+
+ tsec = data;
+ if (datalen != sizeof(*tsec) + tsec->ticket_len)
+ goto error;
+
+ _debug("SCIX: %u", tsec->security_index);
+ _debug("TLEN: %u", tsec->ticket_len);
+ _debug("EXPY: %x", tsec->expiry);
+ _debug("KVNO: %u", tsec->kvno);
+ _debug("SKEY: %02x%02x%02x%02x%02x%02x%02x%02x",
+ tsec->session_key[0], tsec->session_key[1],
+ tsec->session_key[2], tsec->session_key[3],
+ tsec->session_key[4], tsec->session_key[5],
+ tsec->session_key[6], tsec->session_key[7]);
+ if (tsec->ticket_len >= 8)
+ _debug("TCKT: %02x%02x%02x%02x%02x%02x%02x%02x",
+ tsec->ticket[0], tsec->ticket[1],
+ tsec->ticket[2], tsec->ticket[3],
+ tsec->ticket[4], tsec->ticket[5],
+ tsec->ticket[6], tsec->ticket[7]);
+
+ ret = -EPROTONOSUPPORT;
+ if (tsec->security_index != 2)
+ goto error;
+
+ key->type_data.x[0] = tsec->security_index;
+
+ plen = sizeof(*upayload) + tsec->ticket_len;
+ ret = key_payload_reserve(key, plen);
+ if (ret < 0)
+ goto error;
+
+ ret = -ENOMEM;
+ upayload = kmalloc(plen, GFP_KERNEL);
+ if (!upayload)
+ goto error;
+
+ /* attach the data */
+ memcpy(&upayload->k, tsec, sizeof(*tsec));
+ memcpy(&upayload->k.ticket, (void *)tsec + sizeof(*tsec),
+ tsec->ticket_len);
+ key->payload.data = upayload;
+ key->expiry = tsec->expiry;
+ ret = 0;
+
+error:
+ return ret;
+}
+
+/*
+ * instantiate a server secret key
+ * data should be a pointer to the 8-byte secret key
+ */
+static int rxrpc_instantiate_s(struct key *key, const void *data,
+ size_t datalen)
+{
+ struct crypto_blkcipher *ci;
+
+ _enter("{%x},,%zu", key_serial(key), datalen);
+
+ if (datalen != 8)
+ return -EINVAL;
+
+ memcpy(&key->type_data, data, 8);
+
+ ci = crypto_alloc_blkcipher("pcbc(des)", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(ci)) {
+ _leave(" = %ld", PTR_ERR(ci));
+ return PTR_ERR(ci);
+ }
+
+ if (crypto_blkcipher_setkey(ci, data, 8) < 0)
+ BUG();
+
+ key->payload.data = ci;
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * dispose of the data dangling from the corpse of a rxrpc key
+ */
+static void rxrpc_destroy(struct key *key)
+{
+ kfree(key->payload.data);
+}
+
+/*
+ * dispose of the data dangling from the corpse of a rxrpc key
+ */
+static void rxrpc_destroy_s(struct key *key)
+{
+ if (key->payload.data) {
+ crypto_free_blkcipher(key->payload.data);
+ key->payload.data = NULL;
+ }
+}
+
+/*
+ * describe the rxrpc key
+ */
+static void rxrpc_describe(const struct key *key, struct seq_file *m)
+{
+ seq_puts(m, key->description);
+}
+
+/*
+ * grab the security key for a socket
+ */
+int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen)
+{
+ struct key *key;
+ char *description;
+
+ _enter("");
+
+ if (optlen <= 0 || optlen > PAGE_SIZE - 1)
+ return -EINVAL;
+
+ description = kmalloc(optlen + 1, GFP_KERNEL);
+ if (!description)
+ return -ENOMEM;
+
+ if (copy_from_user(description, optval, optlen)) {
+ kfree(description);
+ return -EFAULT;
+ }
+ description[optlen] = 0;
+
+ key = request_key(&key_type_rxrpc, description, NULL);
+ if (IS_ERR(key)) {
+ kfree(description);
+ _leave(" = %ld", PTR_ERR(key));
+ return PTR_ERR(key);
+ }
+
+ rx->key = key;
+ kfree(description);
+ _leave(" = 0 [key %x]", key->serial);
+ return 0;
+}
+
+/*
+ * grab the security keyring for a server socket
+ */
+int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval,
+ int optlen)
+{
+ struct key *key;
+ char *description;
+
+ _enter("");
+
+ if (optlen <= 0 || optlen > PAGE_SIZE - 1)
+ return -EINVAL;
+
+ description = kmalloc(optlen + 1, GFP_KERNEL);
+ if (!description)
+ return -ENOMEM;
+
+ if (copy_from_user(description, optval, optlen)) {
+ kfree(description);
+ return -EFAULT;
+ }
+ description[optlen] = 0;
+
+ key = request_key(&key_type_keyring, description, NULL);
+ if (IS_ERR(key)) {
+ kfree(description);
+ _leave(" = %ld", PTR_ERR(key));
+ return PTR_ERR(key);
+ }
+
+ rx->securities = key;
+ kfree(description);
+ _leave(" = 0 [key %x]", key->serial);
+ return 0;
+}
+
+/*
+ * generate a server data key
+ */
+int rxrpc_get_server_data_key(struct rxrpc_connection *conn,
+ const void *session_key,
+ time_t expiry,
+ u32 kvno)
+{
+ struct key *key;
+ int ret;
+
+ struct {
+ u32 kver;
+ struct rxkad_key tsec;
+ } data;
+
+ _enter("");
+
+ key = key_alloc(&key_type_rxrpc, "x", 0, 0, current, 0,
+ KEY_ALLOC_NOT_IN_QUOTA);
+ if (IS_ERR(key)) {
+ _leave(" = -ENOMEM [alloc %ld]", PTR_ERR(key));
+ return -ENOMEM;
+ }
+
+ _debug("key %d", key_serial(key));
+
+ data.kver = 1;
+ data.tsec.security_index = 2;
+ data.tsec.ticket_len = 0;
+ data.tsec.expiry = expiry;
+ data.tsec.kvno = 0;
+
+ memcpy(&data.tsec.session_key, session_key,
+ sizeof(data.tsec.session_key));
+
+ ret = key_instantiate_and_link(key, &data, sizeof(data), NULL, NULL);
+ if (ret < 0)
+ goto error;
+
+ conn->key = key;
+ _leave(" = 0 [%d]", key_serial(key));
+ return 0;
+
+error:
+ key_revoke(key);
+ key_put(key);
+ _leave(" = -ENOMEM [ins %d]", ret);
+ return -ENOMEM;
+}
+
+EXPORT_SYMBOL(rxrpc_get_server_data_key);
--- /dev/null
+/* AF_RXRPC local endpoint management
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static LIST_HEAD(rxrpc_locals);
+DEFINE_RWLOCK(rxrpc_local_lock);
+static DECLARE_RWSEM(rxrpc_local_sem);
+static DECLARE_WAIT_QUEUE_HEAD(rxrpc_local_wq);
+
+static void rxrpc_destroy_local(struct work_struct *work);
+
+/*
+ * allocate a new local
+ */
+static
+struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx)
+{
+ struct rxrpc_local *local;
+
+ local = kzalloc(sizeof(struct rxrpc_local), GFP_KERNEL);
+ if (local) {
+ INIT_WORK(&local->destroyer, &rxrpc_destroy_local);
+ INIT_WORK(&local->acceptor, &rxrpc_accept_incoming_calls);
+ INIT_WORK(&local->rejecter, &rxrpc_reject_packets);
+ INIT_LIST_HEAD(&local->services);
+ INIT_LIST_HEAD(&local->link);
+ init_rwsem(&local->defrag_sem);
+ skb_queue_head_init(&local->accept_queue);
+ skb_queue_head_init(&local->reject_queue);
+ spin_lock_init(&local->lock);
+ rwlock_init(&local->services_lock);
+ atomic_set(&local->usage, 1);
+ local->debug_id = atomic_inc_return(&rxrpc_debug_id);
+ memcpy(&local->srx, srx, sizeof(*srx));
+ }
+
+ _leave(" = %p", local);
+ return local;
+}
+
+/*
+ * create the local socket
+ * - must be called with rxrpc_local_sem writelocked
+ */
+static int rxrpc_create_local(struct rxrpc_local *local)
+{
+ struct sock *sock;
+ int ret, opt;
+
+ _enter("%p{%d}", local, local->srx.transport_type);
+
+ /* create a socket to represent the local endpoint */
+ ret = sock_create_kern(PF_INET, local->srx.transport_type, IPPROTO_UDP,
+ &local->socket);
+ if (ret < 0) {
+ _leave(" = %d [socket]", ret);
+ return ret;
+ }
+
+ /* if a local address was supplied then bind it */
+ if (local->srx.transport_len > sizeof(sa_family_t)) {
+ _debug("bind");
+ ret = kernel_bind(local->socket,
+ (struct sockaddr *) &local->srx.transport,
+ local->srx.transport_len);
+ if (ret < 0) {
+ _debug("bind failed");
+ goto error;
+ }
+ }
+
+ /* we want to receive ICMP errors */
+ opt = 1;
+ ret = kernel_setsockopt(local->socket, SOL_IP, IP_RECVERR,
+ (char *) &opt, sizeof(opt));
+ if (ret < 0) {
+ _debug("setsockopt failed");
+ goto error;
+ }
+
+ /* we want to set the don't fragment bit */
+ opt = IP_PMTUDISC_DO;
+ ret = kernel_setsockopt(local->socket, SOL_IP, IP_MTU_DISCOVER,
+ (char *) &opt, sizeof(opt));
+ if (ret < 0) {
+ _debug("setsockopt failed");
+ goto error;
+ }
+
+ write_lock_bh(&rxrpc_local_lock);
+ list_add(&local->link, &rxrpc_locals);
+ write_unlock_bh(&rxrpc_local_lock);
+
+ /* set the socket up */
+ sock = local->socket->sk;
+ sock->sk_user_data = local;
+ sock->sk_data_ready = rxrpc_data_ready;
+ sock->sk_error_report = rxrpc_UDP_error_report;
+ _leave(" = 0");
+ return 0;
+
+error:
+ local->socket->ops->shutdown(local->socket, 2);
+ local->socket->sk->sk_user_data = NULL;
+ sock_release(local->socket);
+ local->socket = NULL;
+
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * create a new local endpoint using the specified UDP address
+ */
+struct rxrpc_local *rxrpc_lookup_local(struct sockaddr_rxrpc *srx)
+{
+ struct rxrpc_local *local;
+ int ret;
+
+ _enter("{%d,%u,%u.%u.%u.%u+%hu}",
+ srx->transport_type,
+ srx->transport.family,
+ NIPQUAD(srx->transport.sin.sin_addr),
+ ntohs(srx->transport.sin.sin_port));
+
+ down_write(&rxrpc_local_sem);
+
+ /* see if we have a suitable local local endpoint already */
+ read_lock_bh(&rxrpc_local_lock);
+
+ list_for_each_entry(local, &rxrpc_locals, link) {
+ _debug("CMP {%d,%u,%u.%u.%u.%u+%hu}",
+ local->srx.transport_type,
+ local->srx.transport.family,
+ NIPQUAD(local->srx.transport.sin.sin_addr),
+ ntohs(local->srx.transport.sin.sin_port));
+
+ if (local->srx.transport_type != srx->transport_type ||
+ local->srx.transport.family != srx->transport.family)
+ continue;
+
+ switch (srx->transport.family) {
+ case AF_INET:
+ if (local->srx.transport.sin.sin_port !=
+ srx->transport.sin.sin_port)
+ continue;
+ if (memcmp(&local->srx.transport.sin.sin_addr,
+ &srx->transport.sin.sin_addr,
+ sizeof(struct in_addr)) != 0)
+ continue;
+ goto found_local;
+
+ default:
+ BUG();
+ }
+ }
+
+ read_unlock_bh(&rxrpc_local_lock);
+
+ /* we didn't find one, so we need to create one */
+ local = rxrpc_alloc_local(srx);
+ if (!local) {
+ up_write(&rxrpc_local_sem);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ ret = rxrpc_create_local(local);
+ if (ret < 0) {
+ up_write(&rxrpc_local_sem);
+ kfree(local);
+ _leave(" = %d", ret);
+ return ERR_PTR(ret);
+ }
+
+ up_write(&rxrpc_local_sem);
+
+ _net("LOCAL new %d {%d,%u,%u.%u.%u.%u+%hu}",
+ local->debug_id,
+ local->srx.transport_type,
+ local->srx.transport.family,
+ NIPQUAD(local->srx.transport.sin.sin_addr),
+ ntohs(local->srx.transport.sin.sin_port));
+
+ _leave(" = %p [new]", local);
+ return local;
+
+found_local:
+ rxrpc_get_local(local);
+ read_unlock_bh(&rxrpc_local_lock);
+ up_write(&rxrpc_local_sem);
+
+ _net("LOCAL old %d {%d,%u,%u.%u.%u.%u+%hu}",
+ local->debug_id,
+ local->srx.transport_type,
+ local->srx.transport.family,
+ NIPQUAD(local->srx.transport.sin.sin_addr),
+ ntohs(local->srx.transport.sin.sin_port));
+
+ _leave(" = %p [reuse]", local);
+ return local;
+}
+
+/*
+ * release a local endpoint
+ */
+void rxrpc_put_local(struct rxrpc_local *local)
+{
+ _enter("%p{u=%d}", local, atomic_read(&local->usage));
+
+ ASSERTCMP(atomic_read(&local->usage), >, 0);
+
+ /* to prevent a race, the decrement and the dequeue must be effectively
+ * atomic */
+ write_lock_bh(&rxrpc_local_lock);
+ if (unlikely(atomic_dec_and_test(&local->usage))) {
+ _debug("destroy local");
+ rxrpc_queue_work(&local->destroyer);
+ }
+ write_unlock_bh(&rxrpc_local_lock);
+ _leave("");
+}
+
+/*
+ * destroy a local endpoint
+ */
+static void rxrpc_destroy_local(struct work_struct *work)
+{
+ struct rxrpc_local *local =
+ container_of(work, struct rxrpc_local, destroyer);
+
+ _enter("%p{%d}", local, atomic_read(&local->usage));
+
+ down_write(&rxrpc_local_sem);
+
+ write_lock_bh(&rxrpc_local_lock);
+ if (atomic_read(&local->usage) > 0) {
+ write_unlock_bh(&rxrpc_local_lock);
+ up_read(&rxrpc_local_sem);
+ _leave(" [resurrected]");
+ return;
+ }
+
+ list_del(&local->link);
+ local->socket->sk->sk_user_data = NULL;
+ write_unlock_bh(&rxrpc_local_lock);
+
+ downgrade_write(&rxrpc_local_sem);
+
+ ASSERT(list_empty(&local->services));
+ ASSERT(!work_pending(&local->acceptor));
+ ASSERT(!work_pending(&local->rejecter));
+
+ /* finish cleaning up the local descriptor */
+ rxrpc_purge_queue(&local->accept_queue);
+ rxrpc_purge_queue(&local->reject_queue);
+ local->socket->ops->shutdown(local->socket, 2);
+ sock_release(local->socket);
+
+ up_read(&rxrpc_local_sem);
+
+ _net("DESTROY LOCAL %d", local->debug_id);
+ kfree(local);
+
+ if (list_empty(&rxrpc_locals))
+ wake_up_all(&rxrpc_local_wq);
+
+ _leave("");
+}
+
+/*
+ * preemptively destroy all local local endpoint rather than waiting for
+ * them to be destroyed
+ */
+void __exit rxrpc_destroy_all_locals(void)
+{
+ DECLARE_WAITQUEUE(myself,current);
+
+ _enter("");
+
+ /* we simply have to wait for them to go away */
+ if (!list_empty(&rxrpc_locals)) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&rxrpc_local_wq, &myself);
+
+ while (!list_empty(&rxrpc_locals)) {
+ schedule();
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ }
+
+ remove_wait_queue(&rxrpc_local_wq, &myself);
+ set_current_state(TASK_RUNNING);
+ }
+
+ _leave("");
+}
--- /dev/null
+/* RxRPC packet transmission
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/circ_buf.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+int rxrpc_resend_timeout = 4;
+
+static int rxrpc_send_data(struct kiocb *iocb,
+ struct rxrpc_sock *rx,
+ struct rxrpc_call *call,
+ struct msghdr *msg, size_t len);
+
+/*
+ * extract control messages from the sendmsg() control buffer
+ */
+static int rxrpc_sendmsg_cmsg(struct rxrpc_sock *rx, struct msghdr *msg,
+ unsigned long *user_call_ID,
+ enum rxrpc_command *command,
+ u32 *abort_code,
+ bool server)
+{
+ struct cmsghdr *cmsg;
+ int len;
+
+ *command = RXRPC_CMD_SEND_DATA;
+
+ if (msg->msg_controllen == 0)
+ return -EINVAL;
+
+ for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
+ if (!CMSG_OK(msg, cmsg))
+ return -EINVAL;
+
+ len = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
+ _debug("CMSG %d, %d, %d",
+ cmsg->cmsg_level, cmsg->cmsg_type, len);
+
+ if (cmsg->cmsg_level != SOL_RXRPC)
+ continue;
+
+ switch (cmsg->cmsg_type) {
+ case RXRPC_USER_CALL_ID:
+ if (msg->msg_flags & MSG_CMSG_COMPAT) {
+ if (len != sizeof(u32))
+ return -EINVAL;
+ *user_call_ID = *(u32 *) CMSG_DATA(cmsg);
+ } else {
+ if (len != sizeof(unsigned long))
+ return -EINVAL;
+ *user_call_ID = *(unsigned long *)
+ CMSG_DATA(cmsg);
+ }
+ _debug("User Call ID %lx", *user_call_ID);
+ break;
+
+ case RXRPC_ABORT:
+ if (*command != RXRPC_CMD_SEND_DATA)
+ return -EINVAL;
+ *command = RXRPC_CMD_SEND_ABORT;
+ if (len != sizeof(*abort_code))
+ return -EINVAL;
+ *abort_code = *(unsigned int *) CMSG_DATA(cmsg);
+ _debug("Abort %x", *abort_code);
+ if (*abort_code == 0)
+ return -EINVAL;
+ break;
+
+ case RXRPC_ACCEPT:
+ if (*command != RXRPC_CMD_SEND_DATA)
+ return -EINVAL;
+ *command = RXRPC_CMD_ACCEPT;
+ if (len != 0)
+ return -EINVAL;
+ if (!server)
+ return -EISCONN;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ }
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * abort a call, sending an ABORT packet to the peer
+ */
+static void rxrpc_send_abort(struct rxrpc_call *call, u32 abort_code)
+{
+ write_lock_bh(&call->state_lock);
+
+ if (call->state <= RXRPC_CALL_COMPLETE) {
+ call->state = RXRPC_CALL_LOCALLY_ABORTED;
+ call->abort_code = abort_code;
+ set_bit(RXRPC_CALL_ABORT, &call->events);
+ del_timer_sync(&call->resend_timer);
+ del_timer_sync(&call->ack_timer);
+ clear_bit(RXRPC_CALL_RESEND_TIMER, &call->events);
+ clear_bit(RXRPC_CALL_ACK, &call->events);
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ rxrpc_queue_call(call);
+ }
+
+ write_unlock_bh(&call->state_lock);
+}
+
+/*
+ * send a message forming part of a client call through an RxRPC socket
+ * - caller holds the socket locked
+ * - the socket may be either a client socket or a server socket
+ */
+int rxrpc_client_sendmsg(struct kiocb *iocb, struct rxrpc_sock *rx,
+ struct rxrpc_transport *trans, struct msghdr *msg,
+ size_t len)
+{
+ struct rxrpc_conn_bundle *bundle;
+ enum rxrpc_command cmd;
+ struct rxrpc_call *call;
+ unsigned long user_call_ID = 0;
+ struct key *key;
+ __be16 service_id;
+ u32 abort_code = 0;
+ int ret;
+
+ _enter("");
+
+ ASSERT(trans != NULL);
+
+ ret = rxrpc_sendmsg_cmsg(rx, msg, &user_call_ID, &cmd, &abort_code,
+ false);
+ if (ret < 0)
+ return ret;
+
+ bundle = NULL;
+ if (trans) {
+ service_id = rx->service_id;
+ if (msg->msg_name) {
+ struct sockaddr_rxrpc *srx =
+ (struct sockaddr_rxrpc *) msg->msg_name;
+ service_id = htons(srx->srx_service);
+ }
+ key = rx->key;
+ if (key && !rx->key->payload.data)
+ key = NULL;
+ bundle = rxrpc_get_bundle(rx, trans, key, service_id,
+ GFP_KERNEL);
+ if (IS_ERR(bundle))
+ return PTR_ERR(bundle);
+ }
+
+ call = rxrpc_get_client_call(rx, trans, bundle, user_call_ID,
+ abort_code == 0, GFP_KERNEL);
+ if (trans)
+ rxrpc_put_bundle(trans, bundle);
+ if (IS_ERR(call)) {
+ _leave(" = %ld", PTR_ERR(call));
+ return PTR_ERR(call);
+ }
+
+ _debug("CALL %d USR %lx ST %d on CONN %p",
+ call->debug_id, call->user_call_ID, call->state, call->conn);
+
+ if (call->state >= RXRPC_CALL_COMPLETE) {
+ /* it's too late for this call */
+ ret = -ESHUTDOWN;
+ } else if (cmd == RXRPC_CMD_SEND_ABORT) {
+ rxrpc_send_abort(call, abort_code);
+ } else if (cmd != RXRPC_CMD_SEND_DATA) {
+ ret = -EINVAL;
+ } else if (call->state != RXRPC_CALL_CLIENT_SEND_REQUEST) {
+ /* request phase complete for this client call */
+ ret = -EPROTO;
+ } else {
+ ret = rxrpc_send_data(iocb, rx, call, msg, len);
+ }
+
+ rxrpc_put_call(call);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/**
+ * rxrpc_kernel_send_data - Allow a kernel service to send data on a call
+ * @call: The call to send data through
+ * @msg: The data to send
+ * @len: The amount of data to send
+ *
+ * Allow a kernel service to send data on a call. The call must be in an state
+ * appropriate to sending data. No control data should be supplied in @msg,
+ * nor should an address be supplied. MSG_MORE should be flagged if there's
+ * more data to come, otherwise this data will end the transmission phase.
+ */
+int rxrpc_kernel_send_data(struct rxrpc_call *call, struct msghdr *msg,
+ size_t len)
+{
+ int ret;
+
+ _enter("{%d,%s},", call->debug_id, rxrpc_call_states[call->state]);
+
+ ASSERTCMP(msg->msg_name, ==, NULL);
+ ASSERTCMP(msg->msg_control, ==, NULL);
+
+ lock_sock(&call->socket->sk);
+
+ _debug("CALL %d USR %lx ST %d on CONN %p",
+ call->debug_id, call->user_call_ID, call->state, call->conn);
+
+ if (call->state >= RXRPC_CALL_COMPLETE) {
+ ret = -ESHUTDOWN; /* it's too late for this call */
+ } else if (call->state != RXRPC_CALL_CLIENT_SEND_REQUEST &&
+ call->state != RXRPC_CALL_SERVER_ACK_REQUEST &&
+ call->state != RXRPC_CALL_SERVER_SEND_REPLY) {
+ ret = -EPROTO; /* request phase complete for this client call */
+ } else {
+ mm_segment_t oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ ret = rxrpc_send_data(NULL, call->socket, call, msg, len);
+ set_fs(oldfs);
+ }
+
+ release_sock(&call->socket->sk);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_send_data);
+
+/*
+ * rxrpc_kernel_abort_call - Allow a kernel service to abort a call
+ * @call: The call to be aborted
+ * @abort_code: The abort code to stick into the ABORT packet
+ *
+ * Allow a kernel service to abort a call, if it's still in an abortable state.
+ */
+void rxrpc_kernel_abort_call(struct rxrpc_call *call, u32 abort_code)
+{
+ _enter("{%d},%d", call->debug_id, abort_code);
+
+ lock_sock(&call->socket->sk);
+
+ _debug("CALL %d USR %lx ST %d on CONN %p",
+ call->debug_id, call->user_call_ID, call->state, call->conn);
+
+ if (call->state < RXRPC_CALL_COMPLETE)
+ rxrpc_send_abort(call, abort_code);
+
+ release_sock(&call->socket->sk);
+ _leave("");
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_abort_call);
+
+/*
+ * send a message through a server socket
+ * - caller holds the socket locked
+ */
+int rxrpc_server_sendmsg(struct kiocb *iocb, struct rxrpc_sock *rx,
+ struct msghdr *msg, size_t len)
+{
+ enum rxrpc_command cmd;
+ struct rxrpc_call *call;
+ unsigned long user_call_ID = 0;
+ u32 abort_code = 0;
+ int ret;
+
+ _enter("");
+
+ ret = rxrpc_sendmsg_cmsg(rx, msg, &user_call_ID, &cmd, &abort_code,
+ true);
+ if (ret < 0)
+ return ret;
+
+ if (cmd == RXRPC_CMD_ACCEPT) {
+ call = rxrpc_accept_call(rx, user_call_ID);
+ if (IS_ERR(call))
+ return PTR_ERR(call);
+ rxrpc_put_call(call);
+ return 0;
+ }
+
+ call = rxrpc_find_server_call(rx, user_call_ID);
+ if (!call)
+ return -EBADSLT;
+ if (call->state >= RXRPC_CALL_COMPLETE) {
+ ret = -ESHUTDOWN;
+ goto out;
+ }
+
+ switch (cmd) {
+ case RXRPC_CMD_SEND_DATA:
+ if (call->state != RXRPC_CALL_CLIENT_SEND_REQUEST &&
+ call->state != RXRPC_CALL_SERVER_ACK_REQUEST &&
+ call->state != RXRPC_CALL_SERVER_SEND_REPLY) {
+ /* Tx phase not yet begun for this call */
+ ret = -EPROTO;
+ break;
+ }
+
+ ret = rxrpc_send_data(iocb, rx, call, msg, len);
+ break;
+
+ case RXRPC_CMD_SEND_ABORT:
+ rxrpc_send_abort(call, abort_code);
+ break;
+ default:
+ BUG();
+ }
+
+ out:
+ rxrpc_put_call(call);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * send a packet through the transport endpoint
+ */
+int rxrpc_send_packet(struct rxrpc_transport *trans, struct sk_buff *skb)
+{
+ struct kvec iov[1];
+ struct msghdr msg;
+ int ret, opt;
+
+ _enter(",{%d}", skb->len);
+
+ iov[0].iov_base = skb->head;
+ iov[0].iov_len = skb->len;
+
+ msg.msg_name = &trans->peer->srx.transport.sin;
+ msg.msg_namelen = sizeof(trans->peer->srx.transport.sin);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ /* send the packet with the don't fragment bit set if we currently
+ * think it's small enough */
+ if (skb->len - sizeof(struct rxrpc_header) < trans->peer->maxdata) {
+ down_read(&trans->local->defrag_sem);
+ /* send the packet by UDP
+ * - returns -EMSGSIZE if UDP would have to fragment the packet
+ * to go out of the interface
+ * - in which case, we'll have processed the ICMP error
+ * message and update the peer record
+ */
+ ret = kernel_sendmsg(trans->local->socket, &msg, iov, 1,
+ iov[0].iov_len);
+
+ up_read(&trans->local->defrag_sem);
+ if (ret == -EMSGSIZE)
+ goto send_fragmentable;
+
+ _leave(" = %d [%u]", ret, trans->peer->maxdata);
+ return ret;
+ }
+
+send_fragmentable:
+ /* attempt to send this message with fragmentation enabled */
+ _debug("send fragment");
+
+ down_write(&trans->local->defrag_sem);
+ opt = IP_PMTUDISC_DONT;
+ ret = kernel_setsockopt(trans->local->socket, SOL_IP, IP_MTU_DISCOVER,
+ (char *) &opt, sizeof(opt));
+ if (ret == 0) {
+ ret = kernel_sendmsg(trans->local->socket, &msg, iov, 1,
+ iov[0].iov_len);
+
+ opt = IP_PMTUDISC_DO;
+ kernel_setsockopt(trans->local->socket, SOL_IP,
+ IP_MTU_DISCOVER, (char *) &opt, sizeof(opt));
+ }
+
+ up_write(&trans->local->defrag_sem);
+ _leave(" = %d [frag %u]", ret, trans->peer->maxdata);
+ return ret;
+}
+
+/*
+ * wait for space to appear in the transmit/ACK window
+ * - caller holds the socket locked
+ */
+static int rxrpc_wait_for_tx_window(struct rxrpc_sock *rx,
+ struct rxrpc_call *call,
+ long *timeo)
+{
+ DECLARE_WAITQUEUE(myself, current);
+ int ret;
+
+ _enter(",{%d},%ld",
+ CIRC_SPACE(call->acks_head, call->acks_tail, call->acks_winsz),
+ *timeo);
+
+ add_wait_queue(&call->tx_waitq, &myself);
+
+ for (;;) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ ret = 0;
+ if (CIRC_SPACE(call->acks_head, call->acks_tail,
+ call->acks_winsz) > 0)
+ break;
+ if (signal_pending(current)) {
+ ret = sock_intr_errno(*timeo);
+ break;
+ }
+
+ release_sock(&rx->sk);
+ *timeo = schedule_timeout(*timeo);
+ lock_sock(&rx->sk);
+ }
+
+ remove_wait_queue(&call->tx_waitq, &myself);
+ set_current_state(TASK_RUNNING);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * attempt to schedule an instant Tx resend
+ */
+static inline void rxrpc_instant_resend(struct rxrpc_call *call)
+{
+ read_lock_bh(&call->state_lock);
+ if (try_to_del_timer_sync(&call->resend_timer) >= 0) {
+ clear_bit(RXRPC_CALL_RUN_RTIMER, &call->flags);
+ if (call->state < RXRPC_CALL_COMPLETE &&
+ !test_and_set_bit(RXRPC_CALL_RESEND_TIMER, &call->events))
+ rxrpc_queue_call(call);
+ }
+ read_unlock_bh(&call->state_lock);
+}
+
+/*
+ * queue a packet for transmission, set the resend timer and attempt
+ * to send the packet immediately
+ */
+static void rxrpc_queue_packet(struct rxrpc_call *call, struct sk_buff *skb,
+ bool last)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+ int ret;
+
+ _net("queue skb %p [%d]", skb, call->acks_head);
+
+ ASSERT(call->acks_window != NULL);
+ call->acks_window[call->acks_head] = (unsigned long) skb;
+ smp_wmb();
+ call->acks_head = (call->acks_head + 1) & (call->acks_winsz - 1);
+
+ if (last || call->state == RXRPC_CALL_SERVER_ACK_REQUEST) {
+ _debug("________awaiting reply/ACK__________");
+ write_lock_bh(&call->state_lock);
+ switch (call->state) {
+ case RXRPC_CALL_CLIENT_SEND_REQUEST:
+ call->state = RXRPC_CALL_CLIENT_AWAIT_REPLY;
+ break;
+ case RXRPC_CALL_SERVER_ACK_REQUEST:
+ call->state = RXRPC_CALL_SERVER_SEND_REPLY;
+ if (!last)
+ break;
+ case RXRPC_CALL_SERVER_SEND_REPLY:
+ call->state = RXRPC_CALL_SERVER_AWAIT_ACK;
+ break;
+ default:
+ break;
+ }
+ write_unlock_bh(&call->state_lock);
+ }
+
+ _proto("Tx DATA %%%u { #%u }",
+ ntohl(sp->hdr.serial), ntohl(sp->hdr.seq));
+
+ sp->need_resend = 0;
+ sp->resend_at = jiffies + rxrpc_resend_timeout * HZ;
+ if (!test_and_set_bit(RXRPC_CALL_RUN_RTIMER, &call->flags)) {
+ _debug("run timer");
+ call->resend_timer.expires = sp->resend_at;
+ add_timer(&call->resend_timer);
+ }
+
+ /* attempt to cancel the rx-ACK timer, deferring reply transmission if
+ * we're ACK'ing the request phase of an incoming call */
+ ret = -EAGAIN;
+ if (try_to_del_timer_sync(&call->ack_timer) >= 0) {
+ /* the packet may be freed by rxrpc_process_call() before this
+ * returns */
+ ret = rxrpc_send_packet(call->conn->trans, skb);
+ _net("sent skb %p", skb);
+ } else {
+ _debug("failed to delete ACK timer");
+ }
+
+ if (ret < 0) {
+ _debug("need instant resend %d", ret);
+ sp->need_resend = 1;
+ rxrpc_instant_resend(call);
+ }
+
+ _leave("");
+}
+
+/*
+ * send data through a socket
+ * - must be called in process context
+ * - caller holds the socket locked
+ */
+static int rxrpc_send_data(struct kiocb *iocb,
+ struct rxrpc_sock *rx,
+ struct rxrpc_call *call,
+ struct msghdr *msg, size_t len)
+{
+ struct rxrpc_skb_priv *sp;
+ unsigned char __user *from;
+ struct sk_buff *skb;
+ struct iovec *iov;
+ struct sock *sk = &rx->sk;
+ long timeo;
+ bool more;
+ int ret, ioc, segment, copied;
+
+ _enter(",,,{%zu},%zu", msg->msg_iovlen, len);
+
+ timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT);
+
+ /* this should be in poll */
+ clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+
+ if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN))
+ return -EPIPE;
+
+ iov = msg->msg_iov;
+ ioc = msg->msg_iovlen - 1;
+ from = iov->iov_base;
+ segment = iov->iov_len;
+ iov++;
+ more = msg->msg_flags & MSG_MORE;
+
+ skb = call->tx_pending;
+ call->tx_pending = NULL;
+
+ copied = 0;
+ do {
+ int copy;
+
+ if (segment > len)
+ segment = len;
+
+ _debug("SEGMENT %d @%p", segment, from);
+
+ if (!skb) {
+ size_t size, chunk, max, space;
+
+ _debug("alloc");
+
+ if (CIRC_SPACE(call->acks_head, call->acks_tail,
+ call->acks_winsz) <= 0) {
+ ret = -EAGAIN;
+ if (msg->msg_flags & MSG_DONTWAIT)
+ goto maybe_error;
+ ret = rxrpc_wait_for_tx_window(rx, call,
+ &timeo);
+ if (ret < 0)
+ goto maybe_error;
+ }
+
+ max = call->conn->trans->peer->maxdata;
+ max -= call->conn->security_size;
+ max &= ~(call->conn->size_align - 1UL);
+
+ chunk = max;
+ if (chunk > len)
+ chunk = len;
+
+ space = chunk + call->conn->size_align;
+ space &= ~(call->conn->size_align - 1UL);
+
+ size = space + call->conn->header_size;
+
+ _debug("SIZE: %zu/%zu/%zu", chunk, space, size);
+
+ /* create a buffer that we can retain until it's ACK'd */
+ skb = sock_alloc_send_skb(
+ sk, size, msg->msg_flags & MSG_DONTWAIT, &ret);
+ if (!skb)
+ goto maybe_error;
+
+ rxrpc_new_skb(skb);
+
+ _debug("ALLOC SEND %p", skb);
+
+ ASSERTCMP(skb->mark, ==, 0);
+
+ _debug("HS: %u", call->conn->header_size);
+ skb_reserve(skb, call->conn->header_size);
+ skb->len += call->conn->header_size;
+
+ sp = rxrpc_skb(skb);
+ sp->remain = chunk;
+ if (sp->remain > skb_tailroom(skb))
+ sp->remain = skb_tailroom(skb);
+
+ _net("skb: hr %d, tr %d, hl %d, rm %d",
+ skb_headroom(skb),
+ skb_tailroom(skb),
+ skb_headlen(skb),
+ sp->remain);
+
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ }
+
+ _debug("append");
+ sp = rxrpc_skb(skb);
+
+ /* append next segment of data to the current buffer */
+ copy = skb_tailroom(skb);
+ ASSERTCMP(copy, >, 0);
+ if (copy > segment)
+ copy = segment;
+ if (copy > sp->remain)
+ copy = sp->remain;
+
+ _debug("add");
+ ret = skb_add_data(skb, from, copy);
+ _debug("added");
+ if (ret < 0)
+ goto efault;
+ sp->remain -= copy;
+ skb->mark += copy;
+
+ len -= copy;
+ segment -= copy;
+ from += copy;
+ while (segment == 0 && ioc > 0) {
+ from = iov->iov_base;
+ segment = iov->iov_len;
+ iov++;
+ ioc--;
+ }
+ if (len == 0) {
+ segment = 0;
+ ioc = 0;
+ }
+
+ /* check for the far side aborting the call or a network error
+ * occurring */
+ if (call->state > RXRPC_CALL_COMPLETE)
+ goto call_aborted;
+
+ /* add the packet to the send queue if it's now full */
+ if (sp->remain <= 0 || (segment == 0 && !more)) {
+ struct rxrpc_connection *conn = call->conn;
+ size_t pad;
+
+ /* pad out if we're using security */
+ if (conn->security) {
+ pad = conn->security_size + skb->mark;
+ pad = conn->size_align - pad;
+ pad &= conn->size_align - 1;
+ _debug("pad %zu", pad);
+ if (pad)
+ memset(skb_put(skb, pad), 0, pad);
+ }
+
+ sp->hdr.epoch = conn->epoch;
+ sp->hdr.cid = call->cid;
+ sp->hdr.callNumber = call->call_id;
+ sp->hdr.seq =
+ htonl(atomic_inc_return(&call->sequence));
+ sp->hdr.serial =
+ htonl(atomic_inc_return(&conn->serial));
+ sp->hdr.type = RXRPC_PACKET_TYPE_DATA;
+ sp->hdr.userStatus = 0;
+ sp->hdr.securityIndex = conn->security_ix;
+ sp->hdr._rsvd = 0;
+ sp->hdr.serviceId = conn->service_id;
+
+ sp->hdr.flags = conn->out_clientflag;
+ if (len == 0 && !more)
+ sp->hdr.flags |= RXRPC_LAST_PACKET;
+ else if (CIRC_SPACE(call->acks_head, call->acks_tail,
+ call->acks_winsz) > 1)
+ sp->hdr.flags |= RXRPC_MORE_PACKETS;
+
+ ret = rxrpc_secure_packet(
+ call, skb, skb->mark,
+ skb->head + sizeof(struct rxrpc_header));
+ if (ret < 0)
+ goto out;
+
+ memcpy(skb->head, &sp->hdr,
+ sizeof(struct rxrpc_header));
+ rxrpc_queue_packet(call, skb, segment == 0 && !more);
+ skb = NULL;
+ }
+
+ } while (segment > 0);
+
+out:
+ call->tx_pending = skb;
+ _leave(" = %d", ret);
+ return ret;
+
+call_aborted:
+ rxrpc_free_skb(skb);
+ if (call->state == RXRPC_CALL_NETWORK_ERROR)
+ ret = call->conn->trans->peer->net_error;
+ else
+ ret = -ECONNABORTED;
+ _leave(" = %d", ret);
+ return ret;
+
+maybe_error:
+ if (copied)
+ ret = copied;
+ goto out;
+
+efault:
+ ret = -EFAULT;
+ goto out;
+}
--- /dev/null
+/* RxRPC remote transport endpoint management
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/udp.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/icmp.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include <net/ip.h>
+#include "ar-internal.h"
+
+static LIST_HEAD(rxrpc_peers);
+static DEFINE_RWLOCK(rxrpc_peer_lock);
+static DECLARE_WAIT_QUEUE_HEAD(rxrpc_peer_wq);
+
+static void rxrpc_destroy_peer(struct work_struct *work);
+
+/*
+ * allocate a new peer
+ */
+static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx,
+ gfp_t gfp)
+{
+ struct rxrpc_peer *peer;
+
+ _enter("");
+
+ peer = kzalloc(sizeof(struct rxrpc_peer), gfp);
+ if (peer) {
+ INIT_WORK(&peer->destroyer, &rxrpc_destroy_peer);
+ INIT_LIST_HEAD(&peer->link);
+ INIT_LIST_HEAD(&peer->error_targets);
+ spin_lock_init(&peer->lock);
+ atomic_set(&peer->usage, 1);
+ peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
+ memcpy(&peer->srx, srx, sizeof(*srx));
+
+ peer->mtu = peer->if_mtu = 65535;
+
+ if (srx->transport.family == AF_INET) {
+ peer->hdrsize = sizeof(struct iphdr);
+ switch (srx->transport_type) {
+ case SOCK_DGRAM:
+ peer->hdrsize += sizeof(struct udphdr);
+ break;
+ default:
+ BUG();
+ break;
+ }
+ } else {
+ BUG();
+ }
+
+ peer->hdrsize += sizeof(struct rxrpc_header);
+ peer->maxdata = peer->mtu - peer->hdrsize;
+ }
+
+ _leave(" = %p", peer);
+ return peer;
+}
+
+/*
+ * obtain a remote transport endpoint for the specified address
+ */
+struct rxrpc_peer *rxrpc_get_peer(struct sockaddr_rxrpc *srx, gfp_t gfp)
+{
+ struct rxrpc_peer *peer, *candidate;
+ const char *new = "old";
+ int usage;
+
+ _enter("{%d,%d,%u.%u.%u.%u+%hu}",
+ srx->transport_type,
+ srx->transport_len,
+ NIPQUAD(srx->transport.sin.sin_addr),
+ ntohs(srx->transport.sin.sin_port));
+
+ /* search the peer list first */
+ read_lock_bh(&rxrpc_peer_lock);
+ list_for_each_entry(peer, &rxrpc_peers, link) {
+ _debug("check PEER %d { u=%d t=%d l=%d }",
+ peer->debug_id,
+ atomic_read(&peer->usage),
+ peer->srx.transport_type,
+ peer->srx.transport_len);
+
+ if (atomic_read(&peer->usage) > 0 &&
+ peer->srx.transport_type == srx->transport_type &&
+ peer->srx.transport_len == srx->transport_len &&
+ memcmp(&peer->srx.transport,
+ &srx->transport,
+ srx->transport_len) == 0)
+ goto found_extant_peer;
+ }
+ read_unlock_bh(&rxrpc_peer_lock);
+
+ /* not yet present - create a candidate for a new record and then
+ * redo the search */
+ candidate = rxrpc_alloc_peer(srx, gfp);
+ if (!candidate) {
+ _leave(" = -ENOMEM");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ write_lock_bh(&rxrpc_peer_lock);
+
+ list_for_each_entry(peer, &rxrpc_peers, link) {
+ if (atomic_read(&peer->usage) > 0 &&
+ peer->srx.transport_type == srx->transport_type &&
+ peer->srx.transport_len == srx->transport_len &&
+ memcmp(&peer->srx.transport,
+ &srx->transport,
+ srx->transport_len) == 0)
+ goto found_extant_second;
+ }
+
+ /* we can now add the new candidate to the list */
+ peer = candidate;
+ candidate = NULL;
+
+ list_add_tail(&peer->link, &rxrpc_peers);
+ write_unlock_bh(&rxrpc_peer_lock);
+ new = "new";
+
+success:
+ _net("PEER %s %d {%d,%u,%u.%u.%u.%u+%hu}",
+ new,
+ peer->debug_id,
+ peer->srx.transport_type,
+ peer->srx.transport.family,
+ NIPQUAD(peer->srx.transport.sin.sin_addr),
+ ntohs(peer->srx.transport.sin.sin_port));
+
+ _leave(" = %p {u=%d}", peer, atomic_read(&peer->usage));
+ return peer;
+
+ /* we found the peer in the list immediately */
+found_extant_peer:
+ usage = atomic_inc_return(&peer->usage);
+ read_unlock_bh(&rxrpc_peer_lock);
+ goto success;
+
+ /* we found the peer on the second time through the list */
+found_extant_second:
+ usage = atomic_inc_return(&peer->usage);
+ write_unlock_bh(&rxrpc_peer_lock);
+ kfree(candidate);
+ goto success;
+}
+
+/*
+ * find the peer associated with a packet
+ */
+struct rxrpc_peer *rxrpc_find_peer(struct rxrpc_local *local,
+ __be32 addr, __be16 port)
+{
+ struct rxrpc_peer *peer;
+
+ _enter("");
+
+ /* search the peer list */
+ read_lock_bh(&rxrpc_peer_lock);
+
+ if (local->srx.transport.family == AF_INET &&
+ local->srx.transport_type == SOCK_DGRAM
+ ) {
+ list_for_each_entry(peer, &rxrpc_peers, link) {
+ if (atomic_read(&peer->usage) > 0 &&
+ peer->srx.transport_type == SOCK_DGRAM &&
+ peer->srx.transport.family == AF_INET &&
+ peer->srx.transport.sin.sin_port == port &&
+ peer->srx.transport.sin.sin_addr.s_addr == addr)
+ goto found_UDP_peer;
+ }
+
+ goto new_UDP_peer;
+ }
+
+ read_unlock_bh(&rxrpc_peer_lock);
+ _leave(" = -EAFNOSUPPORT");
+ return ERR_PTR(-EAFNOSUPPORT);
+
+found_UDP_peer:
+ _net("Rx UDP DGRAM from peer %d", peer->debug_id);
+ atomic_inc(&peer->usage);
+ read_unlock_bh(&rxrpc_peer_lock);
+ _leave(" = %p", peer);
+ return peer;
+
+new_UDP_peer:
+ _net("Rx UDP DGRAM from NEW peer %d", peer->debug_id);
+ read_unlock_bh(&rxrpc_peer_lock);
+ _leave(" = -EBUSY [new]");
+ return ERR_PTR(-EBUSY);
+}
+
+/*
+ * release a remote transport endpoint
+ */
+void rxrpc_put_peer(struct rxrpc_peer *peer)
+{
+ _enter("%p{u=%d}", peer, atomic_read(&peer->usage));
+
+ ASSERTCMP(atomic_read(&peer->usage), >, 0);
+
+ if (likely(!atomic_dec_and_test(&peer->usage))) {
+ _leave(" [in use]");
+ return;
+ }
+
+ rxrpc_queue_work(&peer->destroyer);
+ _leave("");
+}
+
+/*
+ * destroy a remote transport endpoint
+ */
+static void rxrpc_destroy_peer(struct work_struct *work)
+{
+ struct rxrpc_peer *peer =
+ container_of(work, struct rxrpc_peer, destroyer);
+
+ _enter("%p{%d}", peer, atomic_read(&peer->usage));
+
+ write_lock_bh(&rxrpc_peer_lock);
+ list_del(&peer->link);
+ write_unlock_bh(&rxrpc_peer_lock);
+
+ _net("DESTROY PEER %d", peer->debug_id);
+ kfree(peer);
+
+ if (list_empty(&rxrpc_peers))
+ wake_up_all(&rxrpc_peer_wq);
+ _leave("");
+}
+
+/*
+ * preemptively destroy all the peer records from a transport endpoint rather
+ * than waiting for them to time out
+ */
+void __exit rxrpc_destroy_all_peers(void)
+{
+ DECLARE_WAITQUEUE(myself,current);
+
+ _enter("");
+
+ /* we simply have to wait for them to go away */
+ if (!list_empty(&rxrpc_peers)) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ add_wait_queue(&rxrpc_peer_wq, &myself);
+
+ while (!list_empty(&rxrpc_peers)) {
+ schedule();
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ }
+
+ remove_wait_queue(&rxrpc_peer_wq, &myself);
+ set_current_state(TASK_RUNNING);
+ }
+
+ _leave("");
+}
--- /dev/null
+/* /proc/net/ support for AF_RXRPC
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static const char *rxrpc_conn_states[] = {
+ [RXRPC_CONN_UNUSED] = "Unused ",
+ [RXRPC_CONN_CLIENT] = "Client ",
+ [RXRPC_CONN_SERVER_UNSECURED] = "SvUnsec ",
+ [RXRPC_CONN_SERVER_CHALLENGING] = "SvChall ",
+ [RXRPC_CONN_SERVER] = "SvSecure",
+ [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort",
+ [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort",
+ [RXRPC_CONN_NETWORK_ERROR] = "NetError",
+};
+
+const char *rxrpc_call_states[] = {
+ [RXRPC_CALL_CLIENT_SEND_REQUEST] = "ClSndReq",
+ [RXRPC_CALL_CLIENT_AWAIT_REPLY] = "ClAwtRpl",
+ [RXRPC_CALL_CLIENT_RECV_REPLY] = "ClRcvRpl",
+ [RXRPC_CALL_CLIENT_FINAL_ACK] = "ClFnlACK",
+ [RXRPC_CALL_SERVER_SECURING] = "SvSecure",
+ [RXRPC_CALL_SERVER_ACCEPTING] = "SvAccept",
+ [RXRPC_CALL_SERVER_RECV_REQUEST] = "SvRcvReq",
+ [RXRPC_CALL_SERVER_ACK_REQUEST] = "SvAckReq",
+ [RXRPC_CALL_SERVER_SEND_REPLY] = "SvSndRpl",
+ [RXRPC_CALL_SERVER_AWAIT_ACK] = "SvAwtACK",
+ [RXRPC_CALL_COMPLETE] = "Complete",
+ [RXRPC_CALL_SERVER_BUSY] = "SvBusy ",
+ [RXRPC_CALL_REMOTELY_ABORTED] = "RmtAbort",
+ [RXRPC_CALL_LOCALLY_ABORTED] = "LocAbort",
+ [RXRPC_CALL_NETWORK_ERROR] = "NetError",
+ [RXRPC_CALL_DEAD] = "Dead ",
+};
+
+/*
+ * generate a list of extant and dead calls in /proc/net/rxrpc_calls
+ */
+static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
+{
+ struct list_head *_p;
+ loff_t pos = *_pos;
+
+ read_lock(&rxrpc_call_lock);
+ if (!pos)
+ return SEQ_START_TOKEN;
+ pos--;
+
+ list_for_each(_p, &rxrpc_calls)
+ if (!pos--)
+ break;
+
+ return _p != &rxrpc_calls ? _p : NULL;
+}
+
+static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct list_head *_p;
+
+ (*pos)++;
+
+ _p = v;
+ _p = (v == SEQ_START_TOKEN) ? rxrpc_calls.next : _p->next;
+
+ return _p != &rxrpc_calls ? _p : NULL;
+}
+
+static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
+{
+ read_unlock(&rxrpc_call_lock);
+}
+
+static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
+{
+ struct rxrpc_transport *trans;
+ struct rxrpc_call *call;
+ char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1];
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq,
+ "Proto Local Remote "
+ " SvID ConnID CallID End Use State Abort "
+ " UserID\n");
+ return 0;
+ }
+
+ call = list_entry(v, struct rxrpc_call, link);
+ trans = call->conn->trans;
+
+ sprintf(lbuff, NIPQUAD_FMT":%u",
+ NIPQUAD(trans->local->srx.transport.sin.sin_addr),
+ ntohs(trans->local->srx.transport.sin.sin_port));
+
+ sprintf(rbuff, NIPQUAD_FMT":%u",
+ NIPQUAD(trans->peer->srx.transport.sin.sin_addr),
+ ntohs(trans->peer->srx.transport.sin.sin_port));
+
+ seq_printf(seq,
+ "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u"
+ " %-8.8s %08x %lx\n",
+ lbuff,
+ rbuff,
+ ntohs(call->conn->service_id),
+ ntohl(call->conn->cid),
+ ntohl(call->call_id),
+ call->conn->in_clientflag ? "Svc" : "Clt",
+ atomic_read(&call->usage),
+ rxrpc_call_states[call->state],
+ call->abort_code,
+ call->user_call_ID);
+
+ return 0;
+}
+
+static struct seq_operations rxrpc_call_seq_ops = {
+ .start = rxrpc_call_seq_start,
+ .next = rxrpc_call_seq_next,
+ .stop = rxrpc_call_seq_stop,
+ .show = rxrpc_call_seq_show,
+};
+
+static int rxrpc_call_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &rxrpc_call_seq_ops);
+}
+
+struct file_operations rxrpc_call_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = rxrpc_call_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_private,
+};
+
+/*
+ * generate a list of extant virtual connections in /proc/net/rxrpc_conns
+ */
+static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos)
+{
+ struct list_head *_p;
+ loff_t pos = *_pos;
+
+ read_lock(&rxrpc_connection_lock);
+ if (!pos)
+ return SEQ_START_TOKEN;
+ pos--;
+
+ list_for_each(_p, &rxrpc_connections)
+ if (!pos--)
+ break;
+
+ return _p != &rxrpc_connections ? _p : NULL;
+}
+
+static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v,
+ loff_t *pos)
+{
+ struct list_head *_p;
+
+ (*pos)++;
+
+ _p = v;
+ _p = (v == SEQ_START_TOKEN) ? rxrpc_connections.next : _p->next;
+
+ return _p != &rxrpc_connections ? _p : NULL;
+}
+
+static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
+{
+ read_unlock(&rxrpc_connection_lock);
+}
+
+static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
+{
+ struct rxrpc_connection *conn;
+ struct rxrpc_transport *trans;
+ char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1];
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq,
+ "Proto Local Remote "
+ " SvID ConnID Calls End Use State Key "
+ " Serial ISerial\n"
+ );
+ return 0;
+ }
+
+ conn = list_entry(v, struct rxrpc_connection, link);
+ trans = conn->trans;
+
+ sprintf(lbuff, NIPQUAD_FMT":%u",
+ NIPQUAD(trans->local->srx.transport.sin.sin_addr),
+ ntohs(trans->local->srx.transport.sin.sin_port));
+
+ sprintf(rbuff, NIPQUAD_FMT":%u",
+ NIPQUAD(trans->peer->srx.transport.sin.sin_addr),
+ ntohs(trans->peer->srx.transport.sin.sin_port));
+
+ seq_printf(seq,
+ "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u"
+ " %s %08x %08x %08x\n",
+ lbuff,
+ rbuff,
+ ntohs(conn->service_id),
+ ntohl(conn->cid),
+ conn->call_counter,
+ conn->in_clientflag ? "Svc" : "Clt",
+ atomic_read(&conn->usage),
+ rxrpc_conn_states[conn->state],
+ key_serial(conn->key),
+ atomic_read(&conn->serial),
+ atomic_read(&conn->hi_serial));
+
+ return 0;
+}
+
+static struct seq_operations rxrpc_connection_seq_ops = {
+ .start = rxrpc_connection_seq_start,
+ .next = rxrpc_connection_seq_next,
+ .stop = rxrpc_connection_seq_stop,
+ .show = rxrpc_connection_seq_show,
+};
+
+
+static int rxrpc_connection_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &rxrpc_connection_seq_ops);
+}
+
+struct file_operations rxrpc_connection_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = rxrpc_connection_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_private,
+};
--- /dev/null
+/* RxRPC recvmsg() implementation
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+/*
+ * removal a call's user ID from the socket tree to make the user ID available
+ * again and so that it won't be seen again in association with that call
+ */
+void rxrpc_remove_user_ID(struct rxrpc_sock *rx, struct rxrpc_call *call)
+{
+ _debug("RELEASE CALL %d", call->debug_id);
+
+ if (test_bit(RXRPC_CALL_HAS_USERID, &call->flags)) {
+ write_lock_bh(&rx->call_lock);
+ rb_erase(&call->sock_node, &call->socket->calls);
+ clear_bit(RXRPC_CALL_HAS_USERID, &call->flags);
+ write_unlock_bh(&rx->call_lock);
+ }
+
+ read_lock_bh(&call->state_lock);
+ if (!test_bit(RXRPC_CALL_RELEASED, &call->flags) &&
+ !test_and_set_bit(RXRPC_CALL_RELEASE, &call->events))
+ rxrpc_queue_call(call);
+ read_unlock_bh(&call->state_lock);
+}
+
+/*
+ * receive a message from an RxRPC socket
+ * - we need to be careful about two or more threads calling recvmsg
+ * simultaneously
+ */
+int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len, int flags)
+{
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_call *call = NULL, *continue_call = NULL;
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ struct sk_buff *skb;
+ long timeo;
+ int copy, ret, ullen, offset, copied = 0;
+ u32 abort_code;
+
+ DEFINE_WAIT(wait);
+
+ _enter(",,,%zu,%d", len, flags);
+
+ if (flags & (MSG_OOB | MSG_TRUNC))
+ return -EOPNOTSUPP;
+
+ ullen = msg->msg_flags & MSG_CMSG_COMPAT ? 4 : sizeof(unsigned long);
+
+ timeo = sock_rcvtimeo(&rx->sk, flags & MSG_DONTWAIT);
+ msg->msg_flags |= MSG_MORE;
+
+ lock_sock(&rx->sk);
+
+ for (;;) {
+ /* return immediately if a client socket has no outstanding
+ * calls */
+ if (RB_EMPTY_ROOT(&rx->calls)) {
+ if (copied)
+ goto out;
+ if (rx->sk.sk_state != RXRPC_SERVER_LISTENING) {
+ release_sock(&rx->sk);
+ if (continue_call)
+ rxrpc_put_call(continue_call);
+ return -ENODATA;
+ }
+ }
+
+ /* get the next message on the Rx queue */
+ skb = skb_peek(&rx->sk.sk_receive_queue);
+ if (!skb) {
+ /* nothing remains on the queue */
+ if (copied &&
+ (msg->msg_flags & MSG_PEEK || timeo == 0))
+ goto out;
+
+ /* wait for a message to turn up */
+ release_sock(&rx->sk);
+ prepare_to_wait_exclusive(rx->sk.sk_sleep, &wait,
+ TASK_INTERRUPTIBLE);
+ ret = sock_error(&rx->sk);
+ if (ret)
+ goto wait_error;
+
+ if (skb_queue_empty(&rx->sk.sk_receive_queue)) {
+ if (signal_pending(current))
+ goto wait_interrupted;
+ timeo = schedule_timeout(timeo);
+ }
+ finish_wait(rx->sk.sk_sleep, &wait);
+ lock_sock(&rx->sk);
+ continue;
+ }
+
+ peek_next_packet:
+ sp = rxrpc_skb(skb);
+ call = sp->call;
+ ASSERT(call != NULL);
+
+ _debug("next pkt %s", rxrpc_pkts[sp->hdr.type]);
+
+ /* make sure we wait for the state to be updated in this call */
+ spin_lock_bh(&call->lock);
+ spin_unlock_bh(&call->lock);
+
+ if (test_bit(RXRPC_CALL_RELEASED, &call->flags)) {
+ _debug("packet from released call");
+ if (skb_dequeue(&rx->sk.sk_receive_queue) != skb)
+ BUG();
+ rxrpc_free_skb(skb);
+ continue;
+ }
+
+ /* determine whether to continue last data receive */
+ if (continue_call) {
+ _debug("maybe cont");
+ if (call != continue_call ||
+ skb->mark != RXRPC_SKB_MARK_DATA) {
+ release_sock(&rx->sk);
+ rxrpc_put_call(continue_call);
+ _leave(" = %d [noncont]", copied);
+ return copied;
+ }
+ }
+
+ rxrpc_get_call(call);
+
+ /* copy the peer address and timestamp */
+ if (!continue_call) {
+ if (msg->msg_name && msg->msg_namelen > 0)
+ memcpy(&msg->msg_name, &call->conn->trans->peer->srx,
+ sizeof(call->conn->trans->peer->srx));
+ sock_recv_timestamp(msg, &rx->sk, skb);
+ }
+
+ /* receive the message */
+ if (skb->mark != RXRPC_SKB_MARK_DATA)
+ goto receive_non_data_message;
+
+ _debug("recvmsg DATA #%u { %d, %d }",
+ ntohl(sp->hdr.seq), skb->len, sp->offset);
+
+ if (!continue_call) {
+ /* only set the control data once per recvmsg() */
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_USER_CALL_ID,
+ ullen, &call->user_call_ID);
+ if (ret < 0)
+ goto copy_error;
+ ASSERT(test_bit(RXRPC_CALL_HAS_USERID, &call->flags));
+ }
+
+ ASSERTCMP(ntohl(sp->hdr.seq), >=, call->rx_data_recv);
+ ASSERTCMP(ntohl(sp->hdr.seq), <=, call->rx_data_recv + 1);
+ call->rx_data_recv = ntohl(sp->hdr.seq);
+
+ ASSERTCMP(ntohl(sp->hdr.seq), >, call->rx_data_eaten);
+
+ offset = sp->offset;
+ copy = skb->len - offset;
+ if (copy > len - copied)
+ copy = len - copied;
+
+ if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+ ret = skb_copy_datagram_iovec(skb, offset,
+ msg->msg_iov, copy);
+ } else {
+ ret = skb_copy_and_csum_datagram_iovec(skb, offset,
+ msg->msg_iov);
+ if (ret == -EINVAL)
+ goto csum_copy_error;
+ }
+
+ if (ret < 0)
+ goto copy_error;
+
+ /* handle piecemeal consumption of data packets */
+ _debug("copied %d+%d", copy, copied);
+
+ offset += copy;
+ copied += copy;
+
+ if (!(flags & MSG_PEEK))
+ sp->offset = offset;
+
+ if (sp->offset < skb->len) {
+ _debug("buffer full");
+ ASSERTCMP(copied, ==, len);
+ break;
+ }
+
+ /* we transferred the whole data packet */
+ if (sp->hdr.flags & RXRPC_LAST_PACKET) {
+ _debug("last");
+ if (call->conn->out_clientflag) {
+ /* last byte of reply received */
+ ret = copied;
+ goto terminal_message;
+ }
+
+ /* last bit of request received */
+ if (!(flags & MSG_PEEK)) {
+ _debug("eat packet");
+ if (skb_dequeue(&rx->sk.sk_receive_queue) !=
+ skb)
+ BUG();
+ rxrpc_free_skb(skb);
+ }
+ msg->msg_flags &= ~MSG_MORE;
+ break;
+ }
+
+ /* move on to the next data message */
+ _debug("next");
+ if (!continue_call)
+ continue_call = sp->call;
+ else
+ rxrpc_put_call(call);
+ call = NULL;
+
+ if (flags & MSG_PEEK) {
+ _debug("peek next");
+ skb = skb->next;
+ if (skb == (struct sk_buff *) &rx->sk.sk_receive_queue)
+ break;
+ goto peek_next_packet;
+ }
+
+ _debug("eat packet");
+ if (skb_dequeue(&rx->sk.sk_receive_queue) != skb)
+ BUG();
+ rxrpc_free_skb(skb);
+ }
+
+ /* end of non-terminal data packet reception for the moment */
+ _debug("end rcv data");
+out:
+ release_sock(&rx->sk);
+ if (call)
+ rxrpc_put_call(call);
+ if (continue_call)
+ rxrpc_put_call(continue_call);
+ _leave(" = %d [data]", copied);
+ return copied;
+
+ /* handle non-DATA messages such as aborts, incoming connections and
+ * final ACKs */
+receive_non_data_message:
+ _debug("non-data");
+
+ if (skb->mark == RXRPC_SKB_MARK_NEW_CALL) {
+ _debug("RECV NEW CALL");
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_NEW_CALL, 0, &abort_code);
+ if (ret < 0)
+ goto copy_error;
+ if (!(flags & MSG_PEEK)) {
+ if (skb_dequeue(&rx->sk.sk_receive_queue) != skb)
+ BUG();
+ rxrpc_free_skb(skb);
+ }
+ goto out;
+ }
+
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_USER_CALL_ID,
+ ullen, &call->user_call_ID);
+ if (ret < 0)
+ goto copy_error;
+ ASSERT(test_bit(RXRPC_CALL_HAS_USERID, &call->flags));
+
+ switch (skb->mark) {
+ case RXRPC_SKB_MARK_DATA:
+ BUG();
+ case RXRPC_SKB_MARK_FINAL_ACK:
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_ACK, 0, &abort_code);
+ break;
+ case RXRPC_SKB_MARK_BUSY:
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_BUSY, 0, &abort_code);
+ break;
+ case RXRPC_SKB_MARK_REMOTE_ABORT:
+ abort_code = call->abort_code;
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_ABORT, 4, &abort_code);
+ break;
+ case RXRPC_SKB_MARK_NET_ERROR:
+ _debug("RECV NET ERROR %d", sp->error);
+ abort_code = sp->error;
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_NET_ERROR, 4, &abort_code);
+ break;
+ case RXRPC_SKB_MARK_LOCAL_ERROR:
+ _debug("RECV LOCAL ERROR %d", sp->error);
+ abort_code = sp->error;
+ ret = put_cmsg(msg, SOL_RXRPC, RXRPC_LOCAL_ERROR, 4,
+ &abort_code);
+ break;
+ default:
+ BUG();
+ break;
+ }
+
+ if (ret < 0)
+ goto copy_error;
+
+terminal_message:
+ _debug("terminal");
+ msg->msg_flags &= ~MSG_MORE;
+ msg->msg_flags |= MSG_EOR;
+
+ if (!(flags & MSG_PEEK)) {
+ _net("free terminal skb %p", skb);
+ if (skb_dequeue(&rx->sk.sk_receive_queue) != skb)
+ BUG();
+ rxrpc_free_skb(skb);
+ rxrpc_remove_user_ID(rx, call);
+ }
+
+ release_sock(&rx->sk);
+ rxrpc_put_call(call);
+ if (continue_call)
+ rxrpc_put_call(continue_call);
+ _leave(" = %d", ret);
+ return ret;
+
+copy_error:
+ _debug("copy error");
+ release_sock(&rx->sk);
+ rxrpc_put_call(call);
+ if (continue_call)
+ rxrpc_put_call(continue_call);
+ _leave(" = %d", ret);
+ return ret;
+
+csum_copy_error:
+ _debug("csum error");
+ release_sock(&rx->sk);
+ if (continue_call)
+ rxrpc_put_call(continue_call);
+ rxrpc_kill_skb(skb);
+ skb_kill_datagram(&rx->sk, skb, flags);
+ rxrpc_put_call(call);
+ return -EAGAIN;
+
+wait_interrupted:
+ ret = sock_intr_errno(timeo);
+wait_error:
+ finish_wait(rx->sk.sk_sleep, &wait);
+ if (continue_call)
+ rxrpc_put_call(continue_call);
+ if (copied)
+ copied = ret;
+ _leave(" = %d [waitfail %d]", copied, ret);
+ return copied;
+
+}
+
+/**
+ * rxrpc_kernel_data_delivered - Record delivery of data message
+ * @skb: Message holding data
+ *
+ * Record the delivery of a data message. This permits RxRPC to keep its
+ * tracking correct. The socket buffer will be deleted.
+ */
+void rxrpc_kernel_data_delivered(struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+ struct rxrpc_call *call = sp->call;
+
+ ASSERTCMP(ntohl(sp->hdr.seq), >=, call->rx_data_recv);
+ ASSERTCMP(ntohl(sp->hdr.seq), <=, call->rx_data_recv + 1);
+ call->rx_data_recv = ntohl(sp->hdr.seq);
+
+ ASSERTCMP(ntohl(sp->hdr.seq), >, call->rx_data_eaten);
+ rxrpc_free_skb(skb);
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_data_delivered);
+
+/**
+ * rxrpc_kernel_is_data_last - Determine if data message is last one
+ * @skb: Message holding data
+ *
+ * Determine if data message is last one for the parent call.
+ */
+bool rxrpc_kernel_is_data_last(struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+
+ ASSERTCMP(skb->mark, ==, RXRPC_SKB_MARK_DATA);
+
+ return sp->hdr.flags & RXRPC_LAST_PACKET;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_is_data_last);
+
+/**
+ * rxrpc_kernel_get_abort_code - Get the abort code from an RxRPC abort message
+ * @skb: Message indicating an abort
+ *
+ * Get the abort code from an RxRPC abort message.
+ */
+u32 rxrpc_kernel_get_abort_code(struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+
+ ASSERTCMP(skb->mark, ==, RXRPC_SKB_MARK_REMOTE_ABORT);
+
+ return sp->call->abort_code;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_get_abort_code);
+
+/**
+ * rxrpc_kernel_get_error - Get the error number from an RxRPC error message
+ * @skb: Message indicating an error
+ *
+ * Get the error number from an RxRPC error message.
+ */
+int rxrpc_kernel_get_error_number(struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+
+ return sp->error;
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_get_error_number);
--- /dev/null
+/* RxRPC security handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/udp.h>
+#include <linux/crypto.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static LIST_HEAD(rxrpc_security_methods);
+static DECLARE_RWSEM(rxrpc_security_sem);
+
+/*
+ * get an RxRPC security module
+ */
+static struct rxrpc_security *rxrpc_security_get(struct rxrpc_security *sec)
+{
+ return try_module_get(sec->owner) ? sec : NULL;
+}
+
+/*
+ * release an RxRPC security module
+ */
+static void rxrpc_security_put(struct rxrpc_security *sec)
+{
+ module_put(sec->owner);
+}
+
+/*
+ * look up an rxrpc security module
+ */
+struct rxrpc_security *rxrpc_security_lookup(u8 security_index)
+{
+ struct rxrpc_security *sec = NULL;
+
+ _enter("");
+
+ down_read(&rxrpc_security_sem);
+
+ list_for_each_entry(sec, &rxrpc_security_methods, link) {
+ if (sec->security_index == security_index) {
+ if (unlikely(!rxrpc_security_get(sec)))
+ break;
+ goto out;
+ }
+ }
+
+ sec = NULL;
+out:
+ up_read(&rxrpc_security_sem);
+ _leave(" = %p [%s]", sec, sec ? sec->name : "");
+ return sec;
+}
+
+/**
+ * rxrpc_register_security - register an RxRPC security handler
+ * @sec: security module
+ *
+ * register an RxRPC security handler for use by RxRPC
+ */
+int rxrpc_register_security(struct rxrpc_security *sec)
+{
+ struct rxrpc_security *psec;
+ int ret;
+
+ _enter("");
+ down_write(&rxrpc_security_sem);
+
+ ret = -EEXIST;
+ list_for_each_entry(psec, &rxrpc_security_methods, link) {
+ if (psec->security_index == sec->security_index)
+ goto out;
+ }
+
+ list_add(&sec->link, &rxrpc_security_methods);
+
+ printk(KERN_NOTICE "RxRPC: Registered security type %d '%s'\n",
+ sec->security_index, sec->name);
+ ret = 0;
+
+out:
+ up_write(&rxrpc_security_sem);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+EXPORT_SYMBOL_GPL(rxrpc_register_security);
+
+/**
+ * rxrpc_unregister_security - unregister an RxRPC security handler
+ * @sec: security module
+ *
+ * unregister an RxRPC security handler
+ */
+void rxrpc_unregister_security(struct rxrpc_security *sec)
+{
+
+ _enter("");
+ down_write(&rxrpc_security_sem);
+ list_del_init(&sec->link);
+ up_write(&rxrpc_security_sem);
+
+ printk(KERN_NOTICE "RxRPC: Unregistered security type %d '%s'\n",
+ sec->security_index, sec->name);
+}
+
+EXPORT_SYMBOL_GPL(rxrpc_unregister_security);
+
+/*
+ * initialise the security on a client connection
+ */
+int rxrpc_init_client_conn_security(struct rxrpc_connection *conn)
+{
+ struct rxrpc_security *sec;
+ struct key *key = conn->key;
+ int ret;
+
+ _enter("{%d},{%x}", conn->debug_id, key_serial(key));
+
+ if (!key)
+ return 0;
+
+ ret = key_validate(key);
+ if (ret < 0)
+ return ret;
+
+ sec = rxrpc_security_lookup(key->type_data.x[0]);
+ if (!sec)
+ return -EKEYREJECTED;
+ conn->security = sec;
+
+ ret = conn->security->init_connection_security(conn);
+ if (ret < 0) {
+ rxrpc_security_put(conn->security);
+ conn->security = NULL;
+ return ret;
+ }
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * initialise the security on a server connection
+ */
+int rxrpc_init_server_conn_security(struct rxrpc_connection *conn)
+{
+ struct rxrpc_security *sec;
+ struct rxrpc_local *local = conn->trans->local;
+ struct rxrpc_sock *rx;
+ struct key *key;
+ key_ref_t kref;
+ char kdesc[5+1+3+1];
+
+ _enter("");
+
+ sprintf(kdesc, "%u:%u", ntohs(conn->service_id), conn->security_ix);
+
+ sec = rxrpc_security_lookup(conn->security_ix);
+ if (!sec) {
+ _leave(" = -ENOKEY [lookup]");
+ return -ENOKEY;
+ }
+
+ /* find the service */
+ read_lock_bh(&local->services_lock);
+ list_for_each_entry(rx, &local->services, listen_link) {
+ if (rx->service_id == conn->service_id)
+ goto found_service;
+ }
+
+ /* the service appears to have died */
+ read_unlock_bh(&local->services_lock);
+ rxrpc_security_put(sec);
+ _leave(" = -ENOENT");
+ return -ENOENT;
+
+found_service:
+ if (!rx->securities) {
+ read_unlock_bh(&local->services_lock);
+ rxrpc_security_put(sec);
+ _leave(" = -ENOKEY");
+ return -ENOKEY;
+ }
+
+ /* look through the service's keyring */
+ kref = keyring_search(make_key_ref(rx->securities, 1UL),
+ &key_type_rxrpc_s, kdesc);
+ if (IS_ERR(kref)) {
+ read_unlock_bh(&local->services_lock);
+ rxrpc_security_put(sec);
+ _leave(" = %ld [search]", PTR_ERR(kref));
+ return PTR_ERR(kref);
+ }
+
+ key = key_ref_to_ptr(kref);
+ read_unlock_bh(&local->services_lock);
+
+ conn->server_key = key;
+ conn->security = sec;
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * secure a packet prior to transmission
+ */
+int rxrpc_secure_packet(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ size_t data_size,
+ void *sechdr)
+{
+ if (call->conn->security)
+ return call->conn->security->secure_packet(
+ call, skb, data_size, sechdr);
+ return 0;
+}
+
+/*
+ * secure a packet prior to transmission
+ */
+int rxrpc_verify_packet(const struct rxrpc_call *call, struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ if (call->conn->security)
+ return call->conn->security->verify_packet(
+ call, skb, _abort_code);
+ return 0;
+}
+
+/*
+ * clear connection security
+ */
+void rxrpc_clear_conn_security(struct rxrpc_connection *conn)
+{
+ _enter("{%d}", conn->debug_id);
+
+ if (conn->security) {
+ conn->security->clear(conn);
+ rxrpc_security_put(conn->security);
+ conn->security = NULL;
+ }
+
+ key_put(conn->key);
+ key_put(conn->server_key);
+}
--- /dev/null
+/* ar-skbuff.c: socket buffer destruction handling
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+/*
+ * set up for the ACK at the end of the receive phase when we discard the final
+ * receive phase data packet
+ * - called with softirqs disabled
+ */
+static void rxrpc_request_final_ACK(struct rxrpc_call *call)
+{
+ /* the call may be aborted before we have a chance to ACK it */
+ write_lock(&call->state_lock);
+
+ switch (call->state) {
+ case RXRPC_CALL_CLIENT_RECV_REPLY:
+ call->state = RXRPC_CALL_CLIENT_FINAL_ACK;
+ _debug("request final ACK");
+
+ /* get an extra ref on the call for the final-ACK generator to
+ * release */
+ rxrpc_get_call(call);
+ set_bit(RXRPC_CALL_ACK_FINAL, &call->events);
+ if (try_to_del_timer_sync(&call->ack_timer) >= 0)
+ rxrpc_queue_call(call);
+ break;
+
+ case RXRPC_CALL_SERVER_RECV_REQUEST:
+ call->state = RXRPC_CALL_SERVER_ACK_REQUEST;
+ default:
+ break;
+ }
+
+ write_unlock(&call->state_lock);
+}
+
+/*
+ * drop the bottom ACK off of the call ACK window and advance the window
+ */
+static void rxrpc_hard_ACK_data(struct rxrpc_call *call,
+ struct rxrpc_skb_priv *sp)
+{
+ int loop;
+ u32 seq;
+
+ spin_lock_bh(&call->lock);
+
+ _debug("hard ACK #%u", ntohl(sp->hdr.seq));
+
+ for (loop = 0; loop < RXRPC_ACKR_WINDOW_ASZ; loop++) {
+ call->ackr_window[loop] >>= 1;
+ call->ackr_window[loop] |=
+ call->ackr_window[loop + 1] << (BITS_PER_LONG - 1);
+ }
+
+ seq = ntohl(sp->hdr.seq);
+ ASSERTCMP(seq, ==, call->rx_data_eaten + 1);
+ call->rx_data_eaten = seq;
+
+ if (call->ackr_win_top < UINT_MAX)
+ call->ackr_win_top++;
+
+ ASSERTIFCMP(call->state <= RXRPC_CALL_COMPLETE,
+ call->rx_data_post, >=, call->rx_data_recv);
+ ASSERTIFCMP(call->state <= RXRPC_CALL_COMPLETE,
+ call->rx_data_recv, >=, call->rx_data_eaten);
+
+ if (sp->hdr.flags & RXRPC_LAST_PACKET) {
+ rxrpc_request_final_ACK(call);
+ } else if (atomic_dec_and_test(&call->ackr_not_idle) &&
+ test_and_clear_bit(RXRPC_CALL_TX_SOFT_ACK, &call->flags)) {
+ _debug("send Rx idle ACK");
+ __rxrpc_propose_ACK(call, RXRPC_ACK_IDLE, sp->hdr.serial,
+ true);
+ }
+
+ spin_unlock_bh(&call->lock);
+}
+
+/*
+ * destroy a packet that has an RxRPC control buffer
+ * - advance the hard-ACK state of the parent call (done here in case something
+ * in the kernel bypasses recvmsg() and steals the packet directly off of the
+ * socket receive queue)
+ */
+void rxrpc_packet_destructor(struct sk_buff *skb)
+{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
+ struct rxrpc_call *call = sp->call;
+
+ _enter("%p{%p}", skb, call);
+
+ if (call) {
+ /* send the final ACK on a client call */
+ if (sp->hdr.type == RXRPC_PACKET_TYPE_DATA)
+ rxrpc_hard_ACK_data(call, sp);
+ rxrpc_put_call(call);
+ sp->call = NULL;
+ }
+
+ if (skb->sk)
+ sock_rfree(skb);
+ _leave("");
+}
+
+/**
+ * rxrpc_kernel_free_skb - Free an RxRPC socket buffer
+ * @skb: The socket buffer to be freed
+ *
+ * Let RxRPC free its own socket buffer, permitting it to maintain debug
+ * accounting.
+ */
+void rxrpc_kernel_free_skb(struct sk_buff *skb)
+{
+ rxrpc_free_skb(skb);
+}
+
+EXPORT_SYMBOL(rxrpc_kernel_free_skb);
--- /dev/null
+/* RxRPC point-to-point transport session management
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+static void rxrpc_transport_reaper(struct work_struct *work);
+
+static LIST_HEAD(rxrpc_transports);
+static DEFINE_RWLOCK(rxrpc_transport_lock);
+static unsigned long rxrpc_transport_timeout = 3600 * 24;
+static DECLARE_DELAYED_WORK(rxrpc_transport_reap, rxrpc_transport_reaper);
+
+/*
+ * allocate a new transport session manager
+ */
+static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local,
+ struct rxrpc_peer *peer,
+ gfp_t gfp)
+{
+ struct rxrpc_transport *trans;
+
+ _enter("");
+
+ trans = kzalloc(sizeof(struct rxrpc_transport), gfp);
+ if (trans) {
+ trans->local = local;
+ trans->peer = peer;
+ INIT_LIST_HEAD(&trans->link);
+ trans->bundles = RB_ROOT;
+ trans->client_conns = RB_ROOT;
+ trans->server_conns = RB_ROOT;
+ skb_queue_head_init(&trans->error_queue);
+ spin_lock_init(&trans->client_lock);
+ rwlock_init(&trans->conn_lock);
+ atomic_set(&trans->usage, 1);
+ trans->debug_id = atomic_inc_return(&rxrpc_debug_id);
+
+ if (peer->srx.transport.family == AF_INET) {
+ switch (peer->srx.transport_type) {
+ case SOCK_DGRAM:
+ INIT_WORK(&trans->error_handler,
+ rxrpc_UDP_error_handler);
+ break;
+ default:
+ BUG();
+ break;
+ }
+ } else {
+ BUG();
+ }
+ }
+
+ _leave(" = %p", trans);
+ return trans;
+}
+
+/*
+ * obtain a transport session for the nominated endpoints
+ */
+struct rxrpc_transport *rxrpc_get_transport(struct rxrpc_local *local,
+ struct rxrpc_peer *peer,
+ gfp_t gfp)
+{
+ struct rxrpc_transport *trans, *candidate;
+ const char *new = "old";
+ int usage;
+
+ _enter("{%u.%u.%u.%u+%hu},{%u.%u.%u.%u+%hu},",
+ NIPQUAD(local->srx.transport.sin.sin_addr),
+ ntohs(local->srx.transport.sin.sin_port),
+ NIPQUAD(peer->srx.transport.sin.sin_addr),
+ ntohs(peer->srx.transport.sin.sin_port));
+
+ /* search the transport list first */
+ read_lock_bh(&rxrpc_transport_lock);
+ list_for_each_entry(trans, &rxrpc_transports, link) {
+ if (trans->local == local && trans->peer == peer)
+ goto found_extant_transport;
+ }
+ read_unlock_bh(&rxrpc_transport_lock);
+
+ /* not yet present - create a candidate for a new record and then
+ * redo the search */
+ candidate = rxrpc_alloc_transport(local, peer, gfp);
+ if (!candidate) {
+ _leave(" = -ENOMEM");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ write_lock_bh(&rxrpc_transport_lock);
+
+ list_for_each_entry(trans, &rxrpc_transports, link) {
+ if (trans->local == local && trans->peer == peer)
+ goto found_extant_second;
+ }
+
+ /* we can now add the new candidate to the list */
+ trans = candidate;
+ candidate = NULL;
+
+ rxrpc_get_local(trans->local);
+ atomic_inc(&trans->peer->usage);
+ list_add_tail(&trans->link, &rxrpc_transports);
+ write_unlock_bh(&rxrpc_transport_lock);
+ new = "new";
+
+success:
+ _net("TRANSPORT %s %d local %d -> peer %d",
+ new,
+ trans->debug_id,
+ trans->local->debug_id,
+ trans->peer->debug_id);
+
+ _leave(" = %p {u=%d}", trans, atomic_read(&trans->usage));
+ return trans;
+
+ /* we found the transport in the list immediately */
+found_extant_transport:
+ usage = atomic_inc_return(&trans->usage);
+ read_unlock_bh(&rxrpc_transport_lock);
+ goto success;
+
+ /* we found the transport on the second time through the list */
+found_extant_second:
+ usage = atomic_inc_return(&trans->usage);
+ write_unlock_bh(&rxrpc_transport_lock);
+ kfree(candidate);
+ goto success;
+}
+
+/*
+ * find the transport connecting two endpoints
+ */
+struct rxrpc_transport *rxrpc_find_transport(struct rxrpc_local *local,
+ struct rxrpc_peer *peer)
+{
+ struct rxrpc_transport *trans;
+
+ _enter("{%u.%u.%u.%u+%hu},{%u.%u.%u.%u+%hu},",
+ NIPQUAD(local->srx.transport.sin.sin_addr),
+ ntohs(local->srx.transport.sin.sin_port),
+ NIPQUAD(peer->srx.transport.sin.sin_addr),
+ ntohs(peer->srx.transport.sin.sin_port));
+
+ /* search the transport list */
+ read_lock_bh(&rxrpc_transport_lock);
+
+ list_for_each_entry(trans, &rxrpc_transports, link) {
+ if (trans->local == local && trans->peer == peer)
+ goto found_extant_transport;
+ }
+
+ read_unlock_bh(&rxrpc_transport_lock);
+ _leave(" = NULL");
+ return NULL;
+
+found_extant_transport:
+ atomic_inc(&trans->usage);
+ read_unlock_bh(&rxrpc_transport_lock);
+ _leave(" = %p", trans);
+ return trans;
+}
+
+/*
+ * release a transport session
+ */
+void rxrpc_put_transport(struct rxrpc_transport *trans)
+{
+ _enter("%p{u=%d}", trans, atomic_read(&trans->usage));
+
+ ASSERTCMP(atomic_read(&trans->usage), >, 0);
+
+ trans->put_time = xtime.tv_sec;
+ if (unlikely(atomic_dec_and_test(&trans->usage)))
+ _debug("zombie");
+ /* let the reaper determine the timeout to avoid a race with
+ * overextending the timeout if the reaper is running at the
+ * same time */
+ rxrpc_queue_delayed_work(&rxrpc_transport_reap, 0);
+ _leave("");
+}
+
+/*
+ * clean up a transport session
+ */
+static void rxrpc_cleanup_transport(struct rxrpc_transport *trans)
+{
+ _net("DESTROY TRANS %d", trans->debug_id);
+
+ rxrpc_purge_queue(&trans->error_queue);
+
+ rxrpc_put_local(trans->local);
+ rxrpc_put_peer(trans->peer);
+ kfree(trans);
+}
+
+/*
+ * reap dead transports that have passed their expiry date
+ */
+static void rxrpc_transport_reaper(struct work_struct *work)
+{
+ struct rxrpc_transport *trans, *_p;
+ unsigned long now, earliest, reap_time;
+
+ LIST_HEAD(graveyard);
+
+ _enter("");
+
+ now = xtime.tv_sec;
+ earliest = ULONG_MAX;
+
+ /* extract all the transports that have been dead too long */
+ write_lock_bh(&rxrpc_transport_lock);
+ list_for_each_entry_safe(trans, _p, &rxrpc_transports, link) {
+ _debug("reap TRANS %d { u=%d t=%ld }",
+ trans->debug_id, atomic_read(&trans->usage),
+ (long) now - (long) trans->put_time);
+
+ if (likely(atomic_read(&trans->usage) > 0))
+ continue;
+
+ reap_time = trans->put_time + rxrpc_transport_timeout;
+ if (reap_time <= now)
+ list_move_tail(&trans->link, &graveyard);
+ else if (reap_time < earliest)
+ earliest = reap_time;
+ }
+ write_unlock_bh(&rxrpc_transport_lock);
+
+ if (earliest != ULONG_MAX) {
+ _debug("reschedule reaper %ld", (long) earliest - now);
+ ASSERTCMP(earliest, >, now);
+ rxrpc_queue_delayed_work(&rxrpc_transport_reap,
+ (earliest - now) * HZ);
+ }
+
+ /* then destroy all those pulled out */
+ while (!list_empty(&graveyard)) {
+ trans = list_entry(graveyard.next, struct rxrpc_transport,
+ link);
+ list_del_init(&trans->link);
+
+ ASSERTCMP(atomic_read(&trans->usage), ==, 0);
+ rxrpc_cleanup_transport(trans);
+ }
+
+ _leave("");
+}
+
+/*
+ * preemptively destroy all the transport session records rather than waiting
+ * for them to time out
+ */
+void __exit rxrpc_destroy_all_transports(void)
+{
+ _enter("");
+
+ rxrpc_transport_timeout = 0;
+ cancel_delayed_work(&rxrpc_transport_reap);
+ rxrpc_queue_delayed_work(&rxrpc_transport_reap, 0);
+
+ _leave("");
+}
+++ /dev/null
-/* call.c: Rx call routines
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/message.h>
-#include "internal.h"
-
-__RXACCT_DECL(atomic_t rxrpc_call_count);
-__RXACCT_DECL(atomic_t rxrpc_message_count);
-
-LIST_HEAD(rxrpc_calls);
-DECLARE_RWSEM(rxrpc_calls_sem);
-
-unsigned rxrpc_call_rcv_timeout = HZ/3;
-static unsigned rxrpc_call_acks_timeout = HZ/3;
-static unsigned rxrpc_call_dfr_ack_timeout = HZ/20;
-static unsigned short rxrpc_call_max_resend = HZ/10;
-
-const char *rxrpc_call_states[] = {
- "COMPLETE",
- "ERROR",
- "SRVR_RCV_OPID",
- "SRVR_RCV_ARGS",
- "SRVR_GOT_ARGS",
- "SRVR_SND_REPLY",
- "SRVR_RCV_FINAL_ACK",
- "CLNT_SND_ARGS",
- "CLNT_RCV_REPLY",
- "CLNT_GOT_REPLY"
-};
-
-const char *rxrpc_call_error_states[] = {
- "NO_ERROR",
- "LOCAL_ABORT",
- "PEER_ABORT",
- "LOCAL_ERROR",
- "REMOTE_ERROR"
-};
-
-const char *rxrpc_pkts[] = {
- "?00",
- "data", "ack", "busy", "abort", "ackall", "chall", "resp", "debug",
- "?09", "?10", "?11", "?12", "?13", "?14", "?15"
-};
-
-static const char *rxrpc_acks[] = {
- "---", "REQ", "DUP", "SEQ", "WIN", "MEM", "PNG", "PNR", "DLY", "IDL",
- "-?-"
-};
-
-static const char _acktype[] = "NA-";
-
-static void rxrpc_call_receive_packet(struct rxrpc_call *call);
-static void rxrpc_call_receive_data_packet(struct rxrpc_call *call,
- struct rxrpc_message *msg);
-static void rxrpc_call_receive_ack_packet(struct rxrpc_call *call,
- struct rxrpc_message *msg);
-static void rxrpc_call_definitively_ACK(struct rxrpc_call *call,
- rxrpc_seq_t higest);
-static void rxrpc_call_resend(struct rxrpc_call *call, rxrpc_seq_t highest);
-static int __rxrpc_call_read_data(struct rxrpc_call *call);
-
-static int rxrpc_call_record_ACK(struct rxrpc_call *call,
- struct rxrpc_message *msg,
- rxrpc_seq_t seq,
- size_t count);
-
-static int rxrpc_call_flush(struct rxrpc_call *call);
-
-#define _state(call) \
- _debug("[[[ state %s ]]]", rxrpc_call_states[call->app_call_state]);
-
-static void rxrpc_call_default_attn_func(struct rxrpc_call *call)
-{
- wake_up(&call->waitq);
-}
-
-static void rxrpc_call_default_error_func(struct rxrpc_call *call)
-{
- wake_up(&call->waitq);
-}
-
-static void rxrpc_call_default_aemap_func(struct rxrpc_call *call)
-{
- switch (call->app_err_state) {
- case RXRPC_ESTATE_LOCAL_ABORT:
- call->app_abort_code = -call->app_errno;
- case RXRPC_ESTATE_PEER_ABORT:
- call->app_errno = -ECONNABORTED;
- default:
- break;
- }
-}
-
-static void __rxrpc_call_acks_timeout(unsigned long _call)
-{
- struct rxrpc_call *call = (struct rxrpc_call *) _call;
-
- _debug("ACKS TIMEOUT %05lu", jiffies - call->cjif);
-
- call->flags |= RXRPC_CALL_ACKS_TIMO;
- rxrpc_krxiod_queue_call(call);
-}
-
-static void __rxrpc_call_rcv_timeout(unsigned long _call)
-{
- struct rxrpc_call *call = (struct rxrpc_call *) _call;
-
- _debug("RCV TIMEOUT %05lu", jiffies - call->cjif);
-
- call->flags |= RXRPC_CALL_RCV_TIMO;
- rxrpc_krxiod_queue_call(call);
-}
-
-static void __rxrpc_call_ackr_timeout(unsigned long _call)
-{
- struct rxrpc_call *call = (struct rxrpc_call *) _call;
-
- _debug("ACKR TIMEOUT %05lu",jiffies - call->cjif);
-
- call->flags |= RXRPC_CALL_ACKR_TIMO;
- rxrpc_krxiod_queue_call(call);
-}
-
-/*****************************************************************************/
-/*
- * calculate a timeout based on an RTT value
- */
-static inline unsigned long __rxrpc_rtt_based_timeout(struct rxrpc_call *call,
- unsigned long val)
-{
- unsigned long expiry = call->conn->peer->rtt / (1000000 / HZ);
-
- expiry += 10;
- if (expiry < HZ / 25)
- expiry = HZ / 25;
- if (expiry > HZ)
- expiry = HZ;
-
- _leave(" = %lu jiffies", expiry);
- return jiffies + expiry;
-} /* end __rxrpc_rtt_based_timeout() */
-
-/*****************************************************************************/
-/*
- * create a new call record
- */
-static inline int __rxrpc_create_call(struct rxrpc_connection *conn,
- struct rxrpc_call **_call)
-{
- struct rxrpc_call *call;
-
- _enter("%p", conn);
-
- /* allocate and initialise a call record */
- call = (struct rxrpc_call *) get_zeroed_page(GFP_KERNEL);
- if (!call) {
- _leave(" ENOMEM");
- return -ENOMEM;
- }
-
- atomic_set(&call->usage, 1);
-
- init_waitqueue_head(&call->waitq);
- spin_lock_init(&call->lock);
- INIT_LIST_HEAD(&call->link);
- INIT_LIST_HEAD(&call->acks_pendq);
- INIT_LIST_HEAD(&call->rcv_receiveq);
- INIT_LIST_HEAD(&call->rcv_krxiodq_lk);
- INIT_LIST_HEAD(&call->app_readyq);
- INIT_LIST_HEAD(&call->app_unreadyq);
- INIT_LIST_HEAD(&call->app_link);
- INIT_LIST_HEAD(&call->app_attn_link);
-
- init_timer(&call->acks_timeout);
- call->acks_timeout.data = (unsigned long) call;
- call->acks_timeout.function = __rxrpc_call_acks_timeout;
-
- init_timer(&call->rcv_timeout);
- call->rcv_timeout.data = (unsigned long) call;
- call->rcv_timeout.function = __rxrpc_call_rcv_timeout;
-
- init_timer(&call->ackr_dfr_timo);
- call->ackr_dfr_timo.data = (unsigned long) call;
- call->ackr_dfr_timo.function = __rxrpc_call_ackr_timeout;
-
- call->conn = conn;
- call->ackr_win_bot = 1;
- call->ackr_win_top = call->ackr_win_bot + RXRPC_CALL_ACK_WINDOW_SIZE - 1;
- call->ackr_prev_seq = 0;
- call->app_mark = RXRPC_APP_MARK_EOF;
- call->app_attn_func = rxrpc_call_default_attn_func;
- call->app_error_func = rxrpc_call_default_error_func;
- call->app_aemap_func = rxrpc_call_default_aemap_func;
- call->app_scr_alloc = call->app_scratch;
-
- call->cjif = jiffies;
-
- _leave(" = 0 (%p)", call);
-
- *_call = call;
-
- return 0;
-} /* end __rxrpc_create_call() */
-
-/*****************************************************************************/
-/*
- * create a new call record for outgoing calls
- */
-int rxrpc_create_call(struct rxrpc_connection *conn,
- rxrpc_call_attn_func_t attn,
- rxrpc_call_error_func_t error,
- rxrpc_call_aemap_func_t aemap,
- struct rxrpc_call **_call)
-{
- DECLARE_WAITQUEUE(myself, current);
-
- struct rxrpc_call *call;
- int ret, cix, loop;
-
- _enter("%p", conn);
-
- /* allocate and initialise a call record */
- ret = __rxrpc_create_call(conn, &call);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- call->app_call_state = RXRPC_CSTATE_CLNT_SND_ARGS;
- if (attn)
- call->app_attn_func = attn;
- if (error)
- call->app_error_func = error;
- if (aemap)
- call->app_aemap_func = aemap;
-
- _state(call);
-
- spin_lock(&conn->lock);
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&conn->chanwait, &myself);
-
- try_again:
- /* try to find an unused channel */
- for (cix = 0; cix < 4; cix++)
- if (!conn->channels[cix])
- goto obtained_chan;
-
- /* no free channels - wait for one to become available */
- ret = -EINTR;
- if (signal_pending(current))
- goto error_unwait;
-
- spin_unlock(&conn->lock);
-
- schedule();
- set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock(&conn->lock);
- goto try_again;
-
- /* got a channel - now attach to the connection */
- obtained_chan:
- remove_wait_queue(&conn->chanwait, &myself);
- set_current_state(TASK_RUNNING);
-
- /* concoct a unique call number */
- next_callid:
- call->call_id = htonl(++conn->call_counter);
- for (loop = 0; loop < 4; loop++)
- if (conn->channels[loop] &&
- conn->channels[loop]->call_id == call->call_id)
- goto next_callid;
-
- rxrpc_get_connection(conn);
- conn->channels[cix] = call; /* assign _after_ done callid check loop */
- do_gettimeofday(&conn->atime);
- call->chan_ix = htonl(cix);
-
- spin_unlock(&conn->lock);
-
- down_write(&rxrpc_calls_sem);
- list_add_tail(&call->call_link, &rxrpc_calls);
- up_write(&rxrpc_calls_sem);
-
- __RXACCT(atomic_inc(&rxrpc_call_count));
- *_call = call;
-
- _leave(" = 0 (call=%p cix=%u)", call, cix);
- return 0;
-
- error_unwait:
- remove_wait_queue(&conn->chanwait, &myself);
- set_current_state(TASK_RUNNING);
- spin_unlock(&conn->lock);
-
- free_page((unsigned long) call);
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_create_call() */
-
-/*****************************************************************************/
-/*
- * create a new call record for incoming calls
- */
-int rxrpc_incoming_call(struct rxrpc_connection *conn,
- struct rxrpc_message *msg,
- struct rxrpc_call **_call)
-{
- struct rxrpc_call *call;
- unsigned cix;
- int ret;
-
- cix = ntohl(msg->hdr.cid) & RXRPC_CHANNELMASK;
-
- _enter("%p,%u,%u", conn, ntohl(msg->hdr.callNumber), cix);
-
- /* allocate and initialise a call record */
- ret = __rxrpc_create_call(conn, &call);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- call->pkt_rcv_count = 1;
- call->app_call_state = RXRPC_CSTATE_SRVR_RCV_OPID;
- call->app_mark = sizeof(uint32_t);
-
- _state(call);
-
- /* attach to the connection */
- ret = -EBUSY;
- call->chan_ix = htonl(cix);
- call->call_id = msg->hdr.callNumber;
-
- spin_lock(&conn->lock);
-
- if (!conn->channels[cix] ||
- conn->channels[cix]->app_call_state == RXRPC_CSTATE_COMPLETE ||
- conn->channels[cix]->app_call_state == RXRPC_CSTATE_ERROR
- ) {
- conn->channels[cix] = call;
- rxrpc_get_connection(conn);
- ret = 0;
- }
-
- spin_unlock(&conn->lock);
-
- if (ret < 0) {
- free_page((unsigned long) call);
- call = NULL;
- }
-
- if (ret == 0) {
- down_write(&rxrpc_calls_sem);
- list_add_tail(&call->call_link, &rxrpc_calls);
- up_write(&rxrpc_calls_sem);
- __RXACCT(atomic_inc(&rxrpc_call_count));
- *_call = call;
- }
-
- _leave(" = %d [%p]", ret, call);
- return ret;
-} /* end rxrpc_incoming_call() */
-
-/*****************************************************************************/
-/*
- * free a call record
- */
-void rxrpc_put_call(struct rxrpc_call *call)
-{
- struct rxrpc_connection *conn = call->conn;
- struct rxrpc_message *msg;
-
- _enter("%p{u=%d}",call,atomic_read(&call->usage));
-
- /* sanity check */
- if (atomic_read(&call->usage) <= 0)
- BUG();
-
- /* to prevent a race, the decrement and the de-list must be effectively
- * atomic */
- spin_lock(&conn->lock);
- if (likely(!atomic_dec_and_test(&call->usage))) {
- spin_unlock(&conn->lock);
- _leave("");
- return;
- }
-
- if (conn->channels[ntohl(call->chan_ix)] == call)
- conn->channels[ntohl(call->chan_ix)] = NULL;
-
- spin_unlock(&conn->lock);
-
- wake_up(&conn->chanwait);
-
- rxrpc_put_connection(conn);
-
- /* clear the timers and dequeue from krxiod */
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->rcv_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
-
- rxrpc_krxiod_dequeue_call(call);
-
- /* clean up the contents of the struct */
- if (call->snd_nextmsg)
- rxrpc_put_message(call->snd_nextmsg);
-
- if (call->snd_ping)
- rxrpc_put_message(call->snd_ping);
-
- while (!list_empty(&call->acks_pendq)) {
- msg = list_entry(call->acks_pendq.next,
- struct rxrpc_message, link);
- list_del(&msg->link);
- rxrpc_put_message(msg);
- }
-
- while (!list_empty(&call->rcv_receiveq)) {
- msg = list_entry(call->rcv_receiveq.next,
- struct rxrpc_message, link);
- list_del(&msg->link);
- rxrpc_put_message(msg);
- }
-
- while (!list_empty(&call->app_readyq)) {
- msg = list_entry(call->app_readyq.next,
- struct rxrpc_message, link);
- list_del(&msg->link);
- rxrpc_put_message(msg);
- }
-
- while (!list_empty(&call->app_unreadyq)) {
- msg = list_entry(call->app_unreadyq.next,
- struct rxrpc_message, link);
- list_del(&msg->link);
- rxrpc_put_message(msg);
- }
-
- module_put(call->owner);
-
- down_write(&rxrpc_calls_sem);
- list_del(&call->call_link);
- up_write(&rxrpc_calls_sem);
-
- __RXACCT(atomic_dec(&rxrpc_call_count));
- free_page((unsigned long) call);
-
- _leave(" [destroyed]");
-} /* end rxrpc_put_call() */
-
-/*****************************************************************************/
-/*
- * actually generate a normal ACK
- */
-static inline int __rxrpc_call_gen_normal_ACK(struct rxrpc_call *call,
- rxrpc_seq_t seq)
-{
- struct rxrpc_message *msg;
- struct kvec diov[3];
- __be32 aux[4];
- int delta, ret;
-
- /* ACKs default to DELAY */
- if (!call->ackr.reason)
- call->ackr.reason = RXRPC_ACK_DELAY;
-
- _proto("Rx %05lu Sending ACK { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
- jiffies - call->cjif,
- ntohs(call->ackr.maxSkew),
- ntohl(call->ackr.firstPacket),
- ntohl(call->ackr.previousPacket),
- ntohl(call->ackr.serial),
- rxrpc_acks[call->ackr.reason],
- call->ackr.nAcks);
-
- aux[0] = htonl(call->conn->peer->if_mtu); /* interface MTU */
- aux[1] = htonl(1444); /* max MTU */
- aux[2] = htonl(16); /* rwind */
- aux[3] = htonl(4); /* max packets */
-
- diov[0].iov_len = sizeof(struct rxrpc_ackpacket);
- diov[0].iov_base = &call->ackr;
- diov[1].iov_len = call->ackr_pend_cnt + 3;
- diov[1].iov_base = call->ackr_array;
- diov[2].iov_len = sizeof(aux);
- diov[2].iov_base = &aux;
-
- /* build and send the message */
- ret = rxrpc_conn_newmsg(call->conn,call, RXRPC_PACKET_TYPE_ACK,
- 3, diov, GFP_KERNEL, &msg);
- if (ret < 0)
- goto out;
-
- msg->seq = seq;
- msg->hdr.seq = htonl(seq);
- msg->hdr.flags |= RXRPC_SLOW_START_OK;
-
- ret = rxrpc_conn_sendmsg(call->conn, msg);
- rxrpc_put_message(msg);
- if (ret < 0)
- goto out;
- call->pkt_snd_count++;
-
- /* count how many actual ACKs there were at the front */
- for (delta = 0; delta < call->ackr_pend_cnt; delta++)
- if (call->ackr_array[delta] != RXRPC_ACK_TYPE_ACK)
- break;
-
- call->ackr_pend_cnt -= delta; /* all ACK'd to this point */
-
- /* crank the ACK window around */
- if (delta == 0) {
- /* un-ACK'd window */
- }
- else if (delta < RXRPC_CALL_ACK_WINDOW_SIZE) {
- /* partially ACK'd window
- * - shuffle down to avoid losing out-of-sequence packets
- */
- call->ackr_win_bot += delta;
- call->ackr_win_top += delta;
-
- memmove(&call->ackr_array[0],
- &call->ackr_array[delta],
- call->ackr_pend_cnt);
-
- memset(&call->ackr_array[call->ackr_pend_cnt],
- RXRPC_ACK_TYPE_NACK,
- sizeof(call->ackr_array) - call->ackr_pend_cnt);
- }
- else {
- /* fully ACK'd window
- * - just clear the whole thing
- */
- memset(&call->ackr_array,
- RXRPC_ACK_TYPE_NACK,
- sizeof(call->ackr_array));
- }
-
- /* clear this ACK */
- memset(&call->ackr, 0, sizeof(call->ackr));
-
- out:
- if (!call->app_call_state)
- printk("___ STATE 0 ___\n");
- return ret;
-} /* end __rxrpc_call_gen_normal_ACK() */
-
-/*****************************************************************************/
-/*
- * note the reception of a packet in the call's ACK records and generate an
- * appropriate ACK packet if necessary
- * - returns 0 if packet should be processed, 1 if packet should be ignored
- * and -ve on an error
- */
-static int rxrpc_call_generate_ACK(struct rxrpc_call *call,
- struct rxrpc_header *hdr,
- struct rxrpc_ackpacket *ack)
-{
- struct rxrpc_message *msg;
- rxrpc_seq_t seq;
- unsigned offset;
- int ret = 0, err;
- u8 special_ACK, do_ACK, force;
-
- _enter("%p,%p { seq=%d tp=%d fl=%02x }",
- call, hdr, ntohl(hdr->seq), hdr->type, hdr->flags);
-
- seq = ntohl(hdr->seq);
- offset = seq - call->ackr_win_bot;
- do_ACK = RXRPC_ACK_DELAY;
- special_ACK = 0;
- force = (seq == 1);
-
- if (call->ackr_high_seq < seq)
- call->ackr_high_seq = seq;
-
- /* deal with generation of obvious special ACKs first */
- if (ack && ack->reason == RXRPC_ACK_PING) {
- special_ACK = RXRPC_ACK_PING_RESPONSE;
- ret = 1;
- goto gen_ACK;
- }
-
- if (seq < call->ackr_win_bot) {
- special_ACK = RXRPC_ACK_DUPLICATE;
- ret = 1;
- goto gen_ACK;
- }
-
- if (seq >= call->ackr_win_top) {
- special_ACK = RXRPC_ACK_EXCEEDS_WINDOW;
- ret = 1;
- goto gen_ACK;
- }
-
- if (call->ackr_array[offset] != RXRPC_ACK_TYPE_NACK) {
- special_ACK = RXRPC_ACK_DUPLICATE;
- ret = 1;
- goto gen_ACK;
- }
-
- /* okay... it's a normal data packet inside the ACK window */
- call->ackr_array[offset] = RXRPC_ACK_TYPE_ACK;
-
- if (offset < call->ackr_pend_cnt) {
- }
- else if (offset > call->ackr_pend_cnt) {
- do_ACK = RXRPC_ACK_OUT_OF_SEQUENCE;
- call->ackr_pend_cnt = offset;
- goto gen_ACK;
- }
-
- if (hdr->flags & RXRPC_REQUEST_ACK) {
- do_ACK = RXRPC_ACK_REQUESTED;
- }
-
- /* generate an ACK on the final packet of a reply just received */
- if (hdr->flags & RXRPC_LAST_PACKET) {
- if (call->conn->out_clientflag)
- force = 1;
- }
- else if (!(hdr->flags & RXRPC_MORE_PACKETS)) {
- do_ACK = RXRPC_ACK_REQUESTED;
- }
-
- /* re-ACK packets previously received out-of-order */
- for (offset++; offset < RXRPC_CALL_ACK_WINDOW_SIZE; offset++)
- if (call->ackr_array[offset] != RXRPC_ACK_TYPE_ACK)
- break;
-
- call->ackr_pend_cnt = offset;
-
- /* generate an ACK if we fill up the window */
- if (call->ackr_pend_cnt >= RXRPC_CALL_ACK_WINDOW_SIZE)
- force = 1;
-
- gen_ACK:
- _debug("%05lu ACKs pend=%u norm=%s special=%s%s",
- jiffies - call->cjif,
- call->ackr_pend_cnt,
- rxrpc_acks[do_ACK],
- rxrpc_acks[special_ACK],
- force ? " immediate" :
- do_ACK == RXRPC_ACK_REQUESTED ? " merge-req" :
- hdr->flags & RXRPC_LAST_PACKET ? " finalise" :
- " defer"
- );
-
- /* send any pending normal ACKs if need be */
- if (call->ackr_pend_cnt > 0) {
- /* fill out the appropriate form */
- call->ackr.bufferSpace = htons(RXRPC_CALL_ACK_WINDOW_SIZE);
- call->ackr.maxSkew = htons(min(call->ackr_high_seq - seq,
- 65535U));
- call->ackr.firstPacket = htonl(call->ackr_win_bot);
- call->ackr.previousPacket = call->ackr_prev_seq;
- call->ackr.serial = hdr->serial;
- call->ackr.nAcks = call->ackr_pend_cnt;
-
- if (do_ACK == RXRPC_ACK_REQUESTED)
- call->ackr.reason = do_ACK;
-
- /* generate the ACK immediately if necessary */
- if (special_ACK || force) {
- err = __rxrpc_call_gen_normal_ACK(
- call, do_ACK == RXRPC_ACK_DELAY ? 0 : seq);
- if (err < 0) {
- ret = err;
- goto out;
- }
- }
- }
-
- if (call->ackr.reason == RXRPC_ACK_REQUESTED)
- call->ackr_dfr_seq = seq;
-
- /* start the ACK timer if not running if there are any pending deferred
- * ACKs */
- if (call->ackr_pend_cnt > 0 &&
- call->ackr.reason != RXRPC_ACK_REQUESTED &&
- !timer_pending(&call->ackr_dfr_timo)
- ) {
- unsigned long timo;
-
- timo = rxrpc_call_dfr_ack_timeout + jiffies;
-
- _debug("START ACKR TIMER for cj=%lu", timo - call->cjif);
-
- spin_lock(&call->lock);
- mod_timer(&call->ackr_dfr_timo, timo);
- spin_unlock(&call->lock);
- }
- else if ((call->ackr_pend_cnt == 0 ||
- call->ackr.reason == RXRPC_ACK_REQUESTED) &&
- timer_pending(&call->ackr_dfr_timo)
- ) {
- /* stop timer if no pending ACKs */
- _debug("CLEAR ACKR TIMER");
- del_timer_sync(&call->ackr_dfr_timo);
- }
-
- /* send a special ACK if one is required */
- if (special_ACK) {
- struct rxrpc_ackpacket ack;
- struct kvec diov[2];
- uint8_t acks[1] = { RXRPC_ACK_TYPE_ACK };
-
- /* fill out the appropriate form */
- ack.bufferSpace = htons(RXRPC_CALL_ACK_WINDOW_SIZE);
- ack.maxSkew = htons(min(call->ackr_high_seq - seq,
- 65535U));
- ack.firstPacket = htonl(call->ackr_win_bot);
- ack.previousPacket = call->ackr_prev_seq;
- ack.serial = hdr->serial;
- ack.reason = special_ACK;
- ack.nAcks = 0;
-
- _proto("Rx Sending s-ACK"
- " { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
- ntohs(ack.maxSkew),
- ntohl(ack.firstPacket),
- ntohl(ack.previousPacket),
- ntohl(ack.serial),
- rxrpc_acks[ack.reason],
- ack.nAcks);
-
- diov[0].iov_len = sizeof(struct rxrpc_ackpacket);
- diov[0].iov_base = &ack;
- diov[1].iov_len = sizeof(acks);
- diov[1].iov_base = acks;
-
- /* build and send the message */
- err = rxrpc_conn_newmsg(call->conn,call, RXRPC_PACKET_TYPE_ACK,
- hdr->seq ? 2 : 1, diov,
- GFP_KERNEL,
- &msg);
- if (err < 0) {
- ret = err;
- goto out;
- }
-
- msg->seq = seq;
- msg->hdr.seq = htonl(seq);
- msg->hdr.flags |= RXRPC_SLOW_START_OK;
-
- err = rxrpc_conn_sendmsg(call->conn, msg);
- rxrpc_put_message(msg);
- if (err < 0) {
- ret = err;
- goto out;
- }
- call->pkt_snd_count++;
- }
-
- out:
- if (hdr->seq)
- call->ackr_prev_seq = hdr->seq;
-
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_call_generate_ACK() */
-
-/*****************************************************************************/
-/*
- * handle work to be done on a call
- * - includes packet reception and timeout processing
- */
-void rxrpc_call_do_stuff(struct rxrpc_call *call)
-{
- _enter("%p{flags=%lx}", call, call->flags);
-
- /* handle packet reception */
- if (call->flags & RXRPC_CALL_RCV_PKT) {
- _debug("- receive packet");
- call->flags &= ~RXRPC_CALL_RCV_PKT;
- rxrpc_call_receive_packet(call);
- }
-
- /* handle overdue ACKs */
- if (call->flags & RXRPC_CALL_ACKS_TIMO) {
- _debug("- overdue ACK timeout");
- call->flags &= ~RXRPC_CALL_ACKS_TIMO;
- rxrpc_call_resend(call, call->snd_seq_count);
- }
-
- /* handle lack of reception */
- if (call->flags & RXRPC_CALL_RCV_TIMO) {
- _debug("- reception timeout");
- call->flags &= ~RXRPC_CALL_RCV_TIMO;
- rxrpc_call_abort(call, -EIO);
- }
-
- /* handle deferred ACKs */
- if (call->flags & RXRPC_CALL_ACKR_TIMO ||
- (call->ackr.nAcks > 0 && call->ackr.reason == RXRPC_ACK_REQUESTED)
- ) {
- _debug("- deferred ACK timeout: cj=%05lu r=%s n=%u",
- jiffies - call->cjif,
- rxrpc_acks[call->ackr.reason],
- call->ackr.nAcks);
-
- call->flags &= ~RXRPC_CALL_ACKR_TIMO;
-
- if (call->ackr.nAcks > 0 &&
- call->app_call_state != RXRPC_CSTATE_ERROR) {
- /* generate ACK */
- __rxrpc_call_gen_normal_ACK(call, call->ackr_dfr_seq);
- call->ackr_dfr_seq = 0;
- }
- }
-
- _leave("");
-
-} /* end rxrpc_call_do_stuff() */
-
-/*****************************************************************************/
-/*
- * send an abort message at call or connection level
- * - must be called with call->lock held
- * - the supplied error code is sent as the packet data
- */
-static int __rxrpc_call_abort(struct rxrpc_call *call, int errno)
-{
- struct rxrpc_connection *conn = call->conn;
- struct rxrpc_message *msg;
- struct kvec diov[1];
- int ret;
- __be32 _error;
-
- _enter("%p{%08x},%p{%d},%d",
- conn, ntohl(conn->conn_id), call, ntohl(call->call_id), errno);
-
- /* if this call is already aborted, then just wake up any waiters */
- if (call->app_call_state == RXRPC_CSTATE_ERROR) {
- spin_unlock(&call->lock);
- call->app_error_func(call);
- _leave(" = 0");
- return 0;
- }
-
- rxrpc_get_call(call);
-
- /* change the state _with_ the lock still held */
- call->app_call_state = RXRPC_CSTATE_ERROR;
- call->app_err_state = RXRPC_ESTATE_LOCAL_ABORT;
- call->app_errno = errno;
- call->app_mark = RXRPC_APP_MARK_EOF;
- call->app_read_buf = NULL;
- call->app_async_read = 0;
-
- _state(call);
-
- /* ask the app to translate the error code */
- call->app_aemap_func(call);
-
- spin_unlock(&call->lock);
-
- /* flush any outstanding ACKs */
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->rcv_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
-
- if (rxrpc_call_is_ack_pending(call))
- __rxrpc_call_gen_normal_ACK(call, 0);
-
- /* send the abort packet only if we actually traded some other
- * packets */
- ret = 0;
- if (call->pkt_snd_count || call->pkt_rcv_count) {
- /* actually send the abort */
- _proto("Rx Sending Call ABORT { data=%d }",
- call->app_abort_code);
-
- _error = htonl(call->app_abort_code);
-
- diov[0].iov_len = sizeof(_error);
- diov[0].iov_base = &_error;
-
- ret = rxrpc_conn_newmsg(conn, call, RXRPC_PACKET_TYPE_ABORT,
- 1, diov, GFP_KERNEL, &msg);
- if (ret == 0) {
- ret = rxrpc_conn_sendmsg(conn, msg);
- rxrpc_put_message(msg);
- }
- }
-
- /* tell the app layer to let go */
- call->app_error_func(call);
-
- rxrpc_put_call(call);
-
- _leave(" = %d", ret);
- return ret;
-} /* end __rxrpc_call_abort() */
-
-/*****************************************************************************/
-/*
- * send an abort message at call or connection level
- * - the supplied error code is sent as the packet data
- */
-int rxrpc_call_abort(struct rxrpc_call *call, int error)
-{
- spin_lock(&call->lock);
-
- return __rxrpc_call_abort(call, error);
-
-} /* end rxrpc_call_abort() */
-
-/*****************************************************************************/
-/*
- * process packets waiting for this call
- */
-static void rxrpc_call_receive_packet(struct rxrpc_call *call)
-{
- struct rxrpc_message *msg;
- struct list_head *_p;
-
- _enter("%p", call);
-
- rxrpc_get_call(call); /* must not go away too soon if aborted by
- * app-layer */
-
- while (!list_empty(&call->rcv_receiveq)) {
- /* try to get next packet */
- _p = NULL;
- spin_lock(&call->lock);
- if (!list_empty(&call->rcv_receiveq)) {
- _p = call->rcv_receiveq.next;
- list_del_init(_p);
- }
- spin_unlock(&call->lock);
-
- if (!_p)
- break;
-
- msg = list_entry(_p, struct rxrpc_message, link);
-
- _proto("Rx %05lu Received %s packet (%%%u,#%u,%c%c%c%c%c)",
- jiffies - call->cjif,
- rxrpc_pkts[msg->hdr.type],
- ntohl(msg->hdr.serial),
- msg->seq,
- msg->hdr.flags & RXRPC_JUMBO_PACKET ? 'j' : '-',
- msg->hdr.flags & RXRPC_MORE_PACKETS ? 'm' : '-',
- msg->hdr.flags & RXRPC_LAST_PACKET ? 'l' : '-',
- msg->hdr.flags & RXRPC_REQUEST_ACK ? 'r' : '-',
- msg->hdr.flags & RXRPC_CLIENT_INITIATED ? 'C' : 'S'
- );
-
- switch (msg->hdr.type) {
- /* deal with data packets */
- case RXRPC_PACKET_TYPE_DATA:
- /* ACK the packet if necessary */
- switch (rxrpc_call_generate_ACK(call, &msg->hdr,
- NULL)) {
- case 0: /* useful packet */
- rxrpc_call_receive_data_packet(call, msg);
- break;
- case 1: /* duplicate or out-of-window packet */
- break;
- default:
- rxrpc_put_message(msg);
- goto out;
- }
- break;
-
- /* deal with ACK packets */
- case RXRPC_PACKET_TYPE_ACK:
- rxrpc_call_receive_ack_packet(call, msg);
- break;
-
- /* deal with abort packets */
- case RXRPC_PACKET_TYPE_ABORT: {
- __be32 _dbuf, *dp;
-
- dp = skb_header_pointer(msg->pkt, msg->offset,
- sizeof(_dbuf), &_dbuf);
- if (dp == NULL)
- printk("Rx Received short ABORT packet\n");
-
- _proto("Rx Received Call ABORT { data=%d }",
- (dp ? ntohl(*dp) : 0));
-
- spin_lock(&call->lock);
- call->app_call_state = RXRPC_CSTATE_ERROR;
- call->app_err_state = RXRPC_ESTATE_PEER_ABORT;
- call->app_abort_code = (dp ? ntohl(*dp) : 0);
- call->app_errno = -ECONNABORTED;
- call->app_mark = RXRPC_APP_MARK_EOF;
- call->app_read_buf = NULL;
- call->app_async_read = 0;
-
- /* ask the app to translate the error code */
- call->app_aemap_func(call);
- _state(call);
- spin_unlock(&call->lock);
- call->app_error_func(call);
- break;
- }
- default:
- /* deal with other packet types */
- _proto("Rx Unsupported packet type %u (#%u)",
- msg->hdr.type, msg->seq);
- break;
- }
-
- rxrpc_put_message(msg);
- }
-
- out:
- rxrpc_put_call(call);
- _leave("");
-} /* end rxrpc_call_receive_packet() */
-
-/*****************************************************************************/
-/*
- * process next data packet
- * - as the next data packet arrives:
- * - it is queued on app_readyq _if_ it is the next one expected
- * (app_ready_seq+1)
- * - it is queued on app_unreadyq _if_ it is not the next one expected
- * - if a packet placed on app_readyq completely fills a hole leading up to
- * the first packet on app_unreadyq, then packets now in sequence are
- * tranferred to app_readyq
- * - the application layer can only see packets on app_readyq
- * (app_ready_qty bytes)
- * - the application layer is prodded every time a new packet arrives
- */
-static void rxrpc_call_receive_data_packet(struct rxrpc_call *call,
- struct rxrpc_message *msg)
-{
- const struct rxrpc_operation *optbl, *op;
- struct rxrpc_message *pmsg;
- struct list_head *_p;
- int ret, lo, hi, rmtimo;
- __be32 opid;
-
- _enter("%p{%u},%p{%u}", call, ntohl(call->call_id), msg, msg->seq);
-
- rxrpc_get_message(msg);
-
- /* add to the unready queue if we'd have to create a hole in the ready
- * queue otherwise */
- if (msg->seq != call->app_ready_seq + 1) {
- _debug("Call add packet %d to unreadyq", msg->seq);
-
- /* insert in seq order */
- list_for_each(_p, &call->app_unreadyq) {
- pmsg = list_entry(_p, struct rxrpc_message, link);
- if (pmsg->seq > msg->seq)
- break;
- }
-
- list_add_tail(&msg->link, _p);
-
- _leave(" [unreadyq]");
- return;
- }
-
- /* next in sequence - simply append into the call's ready queue */
- _debug("Call add packet %d to readyq (+%Zd => %Zd bytes)",
- msg->seq, msg->dsize, call->app_ready_qty);
-
- spin_lock(&call->lock);
- call->app_ready_seq = msg->seq;
- call->app_ready_qty += msg->dsize;
- list_add_tail(&msg->link, &call->app_readyq);
-
- /* move unready packets to the readyq if we got rid of a hole */
- while (!list_empty(&call->app_unreadyq)) {
- pmsg = list_entry(call->app_unreadyq.next,
- struct rxrpc_message, link);
-
- if (pmsg->seq != call->app_ready_seq + 1)
- break;
-
- /* next in sequence - just move list-to-list */
- _debug("Call transfer packet %d to readyq (+%Zd => %Zd bytes)",
- pmsg->seq, pmsg->dsize, call->app_ready_qty);
-
- call->app_ready_seq = pmsg->seq;
- call->app_ready_qty += pmsg->dsize;
- list_move_tail(&pmsg->link, &call->app_readyq);
- }
-
- /* see if we've got the last packet yet */
- if (!list_empty(&call->app_readyq)) {
- pmsg = list_entry(call->app_readyq.prev,
- struct rxrpc_message, link);
- if (pmsg->hdr.flags & RXRPC_LAST_PACKET) {
- call->app_last_rcv = 1;
- _debug("Last packet on readyq");
- }
- }
-
- switch (call->app_call_state) {
- /* do nothing if call already aborted */
- case RXRPC_CSTATE_ERROR:
- spin_unlock(&call->lock);
- _leave(" [error]");
- return;
-
- /* extract the operation ID from an incoming call if that's not
- * yet been done */
- case RXRPC_CSTATE_SRVR_RCV_OPID:
- spin_unlock(&call->lock);
-
- /* handle as yet insufficient data for the operation ID */
- if (call->app_ready_qty < 4) {
- if (call->app_last_rcv)
- /* trouble - last packet seen */
- rxrpc_call_abort(call, -EINVAL);
-
- _leave("");
- return;
- }
-
- /* pull the operation ID out of the buffer */
- ret = rxrpc_call_read_data(call, &opid, sizeof(opid), 0);
- if (ret < 0) {
- printk("Unexpected error from read-data: %d\n", ret);
- if (call->app_call_state != RXRPC_CSTATE_ERROR)
- rxrpc_call_abort(call, ret);
- _leave("");
- return;
- }
- call->app_opcode = ntohl(opid);
-
- /* locate the operation in the available ops table */
- optbl = call->conn->service->ops_begin;
- lo = 0;
- hi = call->conn->service->ops_end - optbl;
-
- while (lo < hi) {
- int mid = (hi + lo) / 2;
- op = &optbl[mid];
- if (call->app_opcode == op->id)
- goto found_op;
- if (call->app_opcode > op->id)
- lo = mid + 1;
- else
- hi = mid;
- }
-
- /* search failed */
- kproto("Rx Client requested operation %d from %s service",
- call->app_opcode, call->conn->service->name);
- rxrpc_call_abort(call, -EINVAL);
- _leave(" [inval]");
- return;
-
- found_op:
- _proto("Rx Client requested operation %s from %s service",
- op->name, call->conn->service->name);
-
- /* we're now waiting for the argument block (unless the call
- * was aborted) */
- spin_lock(&call->lock);
- if (call->app_call_state == RXRPC_CSTATE_SRVR_RCV_OPID ||
- call->app_call_state == RXRPC_CSTATE_SRVR_SND_REPLY) {
- if (!call->app_last_rcv)
- call->app_call_state =
- RXRPC_CSTATE_SRVR_RCV_ARGS;
- else if (call->app_ready_qty > 0)
- call->app_call_state =
- RXRPC_CSTATE_SRVR_GOT_ARGS;
- else
- call->app_call_state =
- RXRPC_CSTATE_SRVR_SND_REPLY;
- call->app_mark = op->asize;
- call->app_user = op->user;
- }
- spin_unlock(&call->lock);
-
- _state(call);
- break;
-
- case RXRPC_CSTATE_SRVR_RCV_ARGS:
- /* change state if just received last packet of arg block */
- if (call->app_last_rcv)
- call->app_call_state = RXRPC_CSTATE_SRVR_GOT_ARGS;
- spin_unlock(&call->lock);
-
- _state(call);
- break;
-
- case RXRPC_CSTATE_CLNT_RCV_REPLY:
- /* change state if just received last packet of reply block */
- rmtimo = 0;
- if (call->app_last_rcv) {
- call->app_call_state = RXRPC_CSTATE_CLNT_GOT_REPLY;
- rmtimo = 1;
- }
- spin_unlock(&call->lock);
-
- if (rmtimo) {
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->rcv_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
- }
-
- _state(call);
- break;
-
- default:
- /* deal with data reception in an unexpected state */
- printk("Unexpected state [[[ %u ]]]\n", call->app_call_state);
- __rxrpc_call_abort(call, -EBADMSG);
- _leave("");
- return;
- }
-
- if (call->app_call_state == RXRPC_CSTATE_CLNT_RCV_REPLY &&
- call->app_last_rcv)
- BUG();
-
- /* otherwise just invoke the data function whenever we can satisfy its desire for more
- * data
- */
- _proto("Rx Received Op Data: st=%u qty=%Zu mk=%Zu%s",
- call->app_call_state, call->app_ready_qty, call->app_mark,
- call->app_last_rcv ? " last-rcvd" : "");
-
- spin_lock(&call->lock);
-
- ret = __rxrpc_call_read_data(call);
- switch (ret) {
- case 0:
- spin_unlock(&call->lock);
- call->app_attn_func(call);
- break;
- case -EAGAIN:
- spin_unlock(&call->lock);
- break;
- case -ECONNABORTED:
- spin_unlock(&call->lock);
- break;
- default:
- __rxrpc_call_abort(call, ret);
- break;
- }
-
- _state(call);
-
- _leave("");
-
-} /* end rxrpc_call_receive_data_packet() */
-
-/*****************************************************************************/
-/*
- * received an ACK packet
- */
-static void rxrpc_call_receive_ack_packet(struct rxrpc_call *call,
- struct rxrpc_message *msg)
-{
- struct rxrpc_ackpacket _ack, *ap;
- rxrpc_serial_net_t serial;
- rxrpc_seq_t seq;
- int ret;
-
- _enter("%p{%u},%p{%u}", call, ntohl(call->call_id), msg, msg->seq);
-
- /* extract the basic ACK record */
- ap = skb_header_pointer(msg->pkt, msg->offset, sizeof(_ack), &_ack);
- if (ap == NULL) {
- printk("Rx Received short ACK packet\n");
- return;
- }
- msg->offset += sizeof(_ack);
-
- serial = ap->serial;
- seq = ntohl(ap->firstPacket);
-
- _proto("Rx Received ACK %%%d { b=%hu m=%hu f=%u p=%u s=%u r=%s n=%u }",
- ntohl(msg->hdr.serial),
- ntohs(ap->bufferSpace),
- ntohs(ap->maxSkew),
- seq,
- ntohl(ap->previousPacket),
- ntohl(serial),
- rxrpc_acks[ap->reason],
- call->ackr.nAcks
- );
-
- /* check the other side isn't ACK'ing a sequence number I haven't sent
- * yet */
- if (ap->nAcks > 0 &&
- (seq > call->snd_seq_count ||
- seq + ap->nAcks - 1 > call->snd_seq_count)) {
- printk("Received ACK (#%u-#%u) for unsent packet\n",
- seq, seq + ap->nAcks - 1);
- rxrpc_call_abort(call, -EINVAL);
- _leave("");
- return;
- }
-
- /* deal with RTT calculation */
- if (serial) {
- struct rxrpc_message *rttmsg;
-
- /* find the prompting packet */
- spin_lock(&call->lock);
- if (call->snd_ping && call->snd_ping->hdr.serial == serial) {
- /* it was a ping packet */
- rttmsg = call->snd_ping;
- call->snd_ping = NULL;
- spin_unlock(&call->lock);
-
- if (rttmsg) {
- rttmsg->rttdone = 1;
- rxrpc_peer_calculate_rtt(call->conn->peer,
- rttmsg, msg);
- rxrpc_put_message(rttmsg);
- }
- }
- else {
- struct list_head *_p;
-
- /* it ought to be a data packet - look in the pending
- * ACK list */
- list_for_each(_p, &call->acks_pendq) {
- rttmsg = list_entry(_p, struct rxrpc_message,
- link);
- if (rttmsg->hdr.serial == serial) {
- if (rttmsg->rttdone)
- /* never do RTT twice without
- * resending */
- break;
-
- rttmsg->rttdone = 1;
- rxrpc_peer_calculate_rtt(
- call->conn->peer, rttmsg, msg);
- break;
- }
- }
- spin_unlock(&call->lock);
- }
- }
-
- switch (ap->reason) {
- /* deal with negative/positive acknowledgement of data
- * packets */
- case RXRPC_ACK_REQUESTED:
- case RXRPC_ACK_DELAY:
- case RXRPC_ACK_IDLE:
- rxrpc_call_definitively_ACK(call, seq - 1);
-
- case RXRPC_ACK_DUPLICATE:
- case RXRPC_ACK_OUT_OF_SEQUENCE:
- case RXRPC_ACK_EXCEEDS_WINDOW:
- call->snd_resend_cnt = 0;
- ret = rxrpc_call_record_ACK(call, msg, seq, ap->nAcks);
- if (ret < 0)
- rxrpc_call_abort(call, ret);
- break;
-
- /* respond to ping packets immediately */
- case RXRPC_ACK_PING:
- rxrpc_call_generate_ACK(call, &msg->hdr, ap);
- break;
-
- /* only record RTT on ping response packets */
- case RXRPC_ACK_PING_RESPONSE:
- if (call->snd_ping) {
- struct rxrpc_message *rttmsg;
-
- /* only do RTT stuff if the response matches the
- * retained ping */
- rttmsg = NULL;
- spin_lock(&call->lock);
- if (call->snd_ping &&
- call->snd_ping->hdr.serial == ap->serial) {
- rttmsg = call->snd_ping;
- call->snd_ping = NULL;
- }
- spin_unlock(&call->lock);
-
- if (rttmsg) {
- rttmsg->rttdone = 1;
- rxrpc_peer_calculate_rtt(call->conn->peer,
- rttmsg, msg);
- rxrpc_put_message(rttmsg);
- }
- }
- break;
-
- default:
- printk("Unsupported ACK reason %u\n", ap->reason);
- break;
- }
-
- _leave("");
-} /* end rxrpc_call_receive_ack_packet() */
-
-/*****************************************************************************/
-/*
- * record definitive ACKs for all messages up to and including the one with the
- * 'highest' seq
- */
-static void rxrpc_call_definitively_ACK(struct rxrpc_call *call,
- rxrpc_seq_t highest)
-{
- struct rxrpc_message *msg;
- int now_complete;
-
- _enter("%p{ads=%u},%u", call, call->acks_dftv_seq, highest);
-
- while (call->acks_dftv_seq < highest) {
- call->acks_dftv_seq++;
-
- _proto("Definitive ACK on packet #%u", call->acks_dftv_seq);
-
- /* discard those at front of queue until message with highest
- * ACK is found */
- spin_lock(&call->lock);
- msg = NULL;
- if (!list_empty(&call->acks_pendq)) {
- msg = list_entry(call->acks_pendq.next,
- struct rxrpc_message, link);
- list_del_init(&msg->link); /* dequeue */
- if (msg->state == RXRPC_MSG_SENT)
- call->acks_pend_cnt--;
- }
- spin_unlock(&call->lock);
-
- /* insanity check */
- if (!msg)
- panic("%s(): acks_pendq unexpectedly empty\n",
- __FUNCTION__);
-
- if (msg->seq != call->acks_dftv_seq)
- panic("%s(): Packet #%u expected at front of acks_pendq"
- " (#%u found)\n",
- __FUNCTION__, call->acks_dftv_seq, msg->seq);
-
- /* discard the message */
- msg->state = RXRPC_MSG_DONE;
- rxrpc_put_message(msg);
- }
-
- /* if all sent packets are definitively ACK'd then prod any sleepers just in case */
- now_complete = 0;
- spin_lock(&call->lock);
- if (call->acks_dftv_seq == call->snd_seq_count) {
- if (call->app_call_state != RXRPC_CSTATE_COMPLETE) {
- call->app_call_state = RXRPC_CSTATE_COMPLETE;
- _state(call);
- now_complete = 1;
- }
- }
- spin_unlock(&call->lock);
-
- if (now_complete) {
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->rcv_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
- call->app_attn_func(call);
- }
-
- _leave("");
-} /* end rxrpc_call_definitively_ACK() */
-
-/*****************************************************************************/
-/*
- * record the specified amount of ACKs/NAKs
- */
-static int rxrpc_call_record_ACK(struct rxrpc_call *call,
- struct rxrpc_message *msg,
- rxrpc_seq_t seq,
- size_t count)
-{
- struct rxrpc_message *dmsg;
- struct list_head *_p;
- rxrpc_seq_t highest;
- unsigned ix;
- size_t chunk;
- char resend, now_complete;
- u8 acks[16];
-
- _enter("%p{apc=%u ads=%u},%p,%u,%Zu",
- call, call->acks_pend_cnt, call->acks_dftv_seq,
- msg, seq, count);
-
- /* handle re-ACK'ing of definitively ACK'd packets (may be out-of-order
- * ACKs) */
- if (seq <= call->acks_dftv_seq) {
- unsigned delta = call->acks_dftv_seq - seq;
-
- if (count <= delta) {
- _leave(" = 0 [all definitively ACK'd]");
- return 0;
- }
-
- seq += delta;
- count -= delta;
- msg->offset += delta;
- }
-
- highest = seq + count - 1;
- resend = 0;
- while (count > 0) {
- /* extract up to 16 ACK slots at a time */
- chunk = min(count, sizeof(acks));
- count -= chunk;
-
- memset(acks, 2, sizeof(acks));
-
- if (skb_copy_bits(msg->pkt, msg->offset, &acks, chunk) < 0) {
- printk("Rx Received short ACK packet\n");
- _leave(" = -EINVAL");
- return -EINVAL;
- }
- msg->offset += chunk;
-
- /* check that the ACK set is valid */
- for (ix = 0; ix < chunk; ix++) {
- switch (acks[ix]) {
- case RXRPC_ACK_TYPE_ACK:
- break;
- case RXRPC_ACK_TYPE_NACK:
- resend = 1;
- break;
- default:
- printk("Rx Received unsupported ACK state"
- " %u\n", acks[ix]);
- _leave(" = -EINVAL");
- return -EINVAL;
- }
- }
-
- _proto("Rx ACK of packets #%u-#%u "
- "[%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c] (pend=%u)",
- seq, (unsigned) (seq + chunk - 1),
- _acktype[acks[0x0]],
- _acktype[acks[0x1]],
- _acktype[acks[0x2]],
- _acktype[acks[0x3]],
- _acktype[acks[0x4]],
- _acktype[acks[0x5]],
- _acktype[acks[0x6]],
- _acktype[acks[0x7]],
- _acktype[acks[0x8]],
- _acktype[acks[0x9]],
- _acktype[acks[0xA]],
- _acktype[acks[0xB]],
- _acktype[acks[0xC]],
- _acktype[acks[0xD]],
- _acktype[acks[0xE]],
- _acktype[acks[0xF]],
- call->acks_pend_cnt
- );
-
- /* mark the packets in the ACK queue as being provisionally
- * ACK'd */
- ix = 0;
- spin_lock(&call->lock);
-
- /* find the first packet ACK'd/NAK'd here */
- list_for_each(_p, &call->acks_pendq) {
- dmsg = list_entry(_p, struct rxrpc_message, link);
- if (dmsg->seq == seq)
- goto found_first;
- _debug("- %u: skipping #%u", ix, dmsg->seq);
- }
- goto bad_queue;
-
- found_first:
- do {
- _debug("- %u: processing #%u (%c) apc=%u",
- ix, dmsg->seq, _acktype[acks[ix]],
- call->acks_pend_cnt);
-
- if (acks[ix] == RXRPC_ACK_TYPE_ACK) {
- if (dmsg->state == RXRPC_MSG_SENT)
- call->acks_pend_cnt--;
- dmsg->state = RXRPC_MSG_ACKED;
- }
- else {
- if (dmsg->state == RXRPC_MSG_ACKED)
- call->acks_pend_cnt++;
- dmsg->state = RXRPC_MSG_SENT;
- }
- ix++;
- seq++;
-
- _p = dmsg->link.next;
- dmsg = list_entry(_p, struct rxrpc_message, link);
- } while(ix < chunk &&
- _p != &call->acks_pendq &&
- dmsg->seq == seq);
-
- if (ix < chunk)
- goto bad_queue;
-
- spin_unlock(&call->lock);
- }
-
- if (resend)
- rxrpc_call_resend(call, highest);
-
- /* if all packets are provisionally ACK'd, then wake up anyone who's
- * waiting for that */
- now_complete = 0;
- spin_lock(&call->lock);
- if (call->acks_pend_cnt == 0) {
- if (call->app_call_state == RXRPC_CSTATE_SRVR_RCV_FINAL_ACK) {
- call->app_call_state = RXRPC_CSTATE_COMPLETE;
- _state(call);
- }
- now_complete = 1;
- }
- spin_unlock(&call->lock);
-
- if (now_complete) {
- _debug("- wake up waiters");
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->rcv_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
- call->app_attn_func(call);
- }
-
- _leave(" = 0 (apc=%u)", call->acks_pend_cnt);
- return 0;
-
- bad_queue:
- panic("%s(): acks_pendq in bad state (packet #%u absent)\n",
- __FUNCTION__, seq);
-
-} /* end rxrpc_call_record_ACK() */
-
-/*****************************************************************************/
-/*
- * transfer data from the ready packet queue to the asynchronous read buffer
- * - since this func is the only one going to look at packets queued on
- * app_readyq, we don't need a lock to modify or access them, only to modify
- * the queue pointers
- * - called with call->lock held
- * - the buffer must be in kernel space
- * - returns:
- * 0 if buffer filled
- * -EAGAIN if buffer not filled and more data to come
- * -EBADMSG if last packet received and insufficient data left
- * -ECONNABORTED if the call has in an error state
- */
-static int __rxrpc_call_read_data(struct rxrpc_call *call)
-{
- struct rxrpc_message *msg;
- size_t qty;
- int ret;
-
- _enter("%p{as=%d buf=%p qty=%Zu/%Zu}",
- call,
- call->app_async_read, call->app_read_buf,
- call->app_ready_qty, call->app_mark);
-
- /* check the state */
- switch (call->app_call_state) {
- case RXRPC_CSTATE_SRVR_RCV_ARGS:
- case RXRPC_CSTATE_CLNT_RCV_REPLY:
- if (call->app_last_rcv) {
- printk("%s(%p,%p,%Zd):"
- " Inconsistent call state (%s, last pkt)",
- __FUNCTION__,
- call, call->app_read_buf, call->app_mark,
- rxrpc_call_states[call->app_call_state]);
- BUG();
- }
- break;
-
- case RXRPC_CSTATE_SRVR_RCV_OPID:
- case RXRPC_CSTATE_SRVR_GOT_ARGS:
- case RXRPC_CSTATE_CLNT_GOT_REPLY:
- break;
-
- case RXRPC_CSTATE_SRVR_SND_REPLY:
- if (!call->app_last_rcv) {
- printk("%s(%p,%p,%Zd):"
- " Inconsistent call state (%s, not last pkt)",
- __FUNCTION__,
- call, call->app_read_buf, call->app_mark,
- rxrpc_call_states[call->app_call_state]);
- BUG();
- }
- _debug("Trying to read data from call in SND_REPLY state");
- break;
-
- case RXRPC_CSTATE_ERROR:
- _leave(" = -ECONNABORTED");
- return -ECONNABORTED;
-
- default:
- printk("reading in unexpected state [[[ %u ]]]\n",
- call->app_call_state);
- BUG();
- }
-
- /* handle the case of not having an async buffer */
- if (!call->app_async_read) {
- if (call->app_mark == RXRPC_APP_MARK_EOF) {
- ret = call->app_last_rcv ? 0 : -EAGAIN;
- }
- else {
- if (call->app_mark >= call->app_ready_qty) {
- call->app_mark = RXRPC_APP_MARK_EOF;
- ret = 0;
- }
- else {
- ret = call->app_last_rcv ? -EBADMSG : -EAGAIN;
- }
- }
-
- _leave(" = %d [no buf]", ret);
- return 0;
- }
-
- while (!list_empty(&call->app_readyq) && call->app_mark > 0) {
- msg = list_entry(call->app_readyq.next,
- struct rxrpc_message, link);
-
- /* drag as much data as we need out of this packet */
- qty = min(call->app_mark, msg->dsize);
-
- _debug("reading %Zu from skb=%p off=%lu",
- qty, msg->pkt, msg->offset);
-
- if (call->app_read_buf)
- if (skb_copy_bits(msg->pkt, msg->offset,
- call->app_read_buf, qty) < 0)
- panic("%s: Failed to copy data from packet:"
- " (%p,%p,%Zd)",
- __FUNCTION__,
- call, call->app_read_buf, qty);
-
- /* if that packet is now empty, discard it */
- call->app_ready_qty -= qty;
- msg->dsize -= qty;
-
- if (msg->dsize == 0) {
- list_del_init(&msg->link);
- rxrpc_put_message(msg);
- }
- else {
- msg->offset += qty;
- }
-
- call->app_mark -= qty;
- if (call->app_read_buf)
- call->app_read_buf += qty;
- }
-
- if (call->app_mark == 0) {
- call->app_async_read = 0;
- call->app_mark = RXRPC_APP_MARK_EOF;
- call->app_read_buf = NULL;
-
- /* adjust the state if used up all packets */
- if (list_empty(&call->app_readyq) && call->app_last_rcv) {
- switch (call->app_call_state) {
- case RXRPC_CSTATE_SRVR_RCV_OPID:
- call->app_call_state = RXRPC_CSTATE_SRVR_SND_REPLY;
- call->app_mark = RXRPC_APP_MARK_EOF;
- _state(call);
- del_timer_sync(&call->rcv_timeout);
- break;
- case RXRPC_CSTATE_SRVR_GOT_ARGS:
- call->app_call_state = RXRPC_CSTATE_SRVR_SND_REPLY;
- _state(call);
- del_timer_sync(&call->rcv_timeout);
- break;
- default:
- call->app_call_state = RXRPC_CSTATE_COMPLETE;
- _state(call);
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
- del_timer_sync(&call->rcv_timeout);
- break;
- }
- }
-
- _leave(" = 0");
- return 0;
- }
-
- if (call->app_last_rcv) {
- _debug("Insufficient data (%Zu/%Zu)",
- call->app_ready_qty, call->app_mark);
- call->app_async_read = 0;
- call->app_mark = RXRPC_APP_MARK_EOF;
- call->app_read_buf = NULL;
-
- _leave(" = -EBADMSG");
- return -EBADMSG;
- }
-
- _leave(" = -EAGAIN");
- return -EAGAIN;
-} /* end __rxrpc_call_read_data() */
-
-/*****************************************************************************/
-/*
- * attempt to read the specified amount of data from the call's ready queue
- * into the buffer provided
- * - since this func is the only one going to look at packets queued on
- * app_readyq, we don't need a lock to modify or access them, only to modify
- * the queue pointers
- * - if the buffer pointer is NULL, then data is merely drained, not copied
- * - if flags&RXRPC_CALL_READ_BLOCK, then the function will wait until there is
- * enough data or an error will be generated
- * - note that the caller must have added the calling task to the call's wait
- * queue beforehand
- * - if flags&RXRPC_CALL_READ_ALL, then an error will be generated if this
- * function doesn't read all available data
- */
-int rxrpc_call_read_data(struct rxrpc_call *call,
- void *buffer, size_t size, int flags)
-{
- int ret;
-
- _enter("%p{arq=%Zu},%p,%Zd,%x",
- call, call->app_ready_qty, buffer, size, flags);
-
- spin_lock(&call->lock);
-
- if (unlikely(!!call->app_read_buf)) {
- spin_unlock(&call->lock);
- _leave(" = -EBUSY");
- return -EBUSY;
- }
-
- call->app_mark = size;
- call->app_read_buf = buffer;
- call->app_async_read = 1;
- call->app_read_count++;
-
- /* read as much data as possible */
- ret = __rxrpc_call_read_data(call);
- switch (ret) {
- case 0:
- if (flags & RXRPC_CALL_READ_ALL &&
- (!call->app_last_rcv || call->app_ready_qty > 0)) {
- _leave(" = -EBADMSG");
- __rxrpc_call_abort(call, -EBADMSG);
- return -EBADMSG;
- }
-
- spin_unlock(&call->lock);
- call->app_attn_func(call);
- _leave(" = 0");
- return ret;
-
- case -ECONNABORTED:
- spin_unlock(&call->lock);
- _leave(" = %d [aborted]", ret);
- return ret;
-
- default:
- __rxrpc_call_abort(call, ret);
- _leave(" = %d", ret);
- return ret;
-
- case -EAGAIN:
- spin_unlock(&call->lock);
-
- if (!(flags & RXRPC_CALL_READ_BLOCK)) {
- _leave(" = -EAGAIN");
- return -EAGAIN;
- }
-
- /* wait for the data to arrive */
- _debug("blocking for data arrival");
-
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (!call->app_async_read || signal_pending(current))
- break;
- schedule();
- }
- set_current_state(TASK_RUNNING);
-
- if (signal_pending(current)) {
- _leave(" = -EINTR");
- return -EINTR;
- }
-
- if (call->app_call_state == RXRPC_CSTATE_ERROR) {
- _leave(" = -ECONNABORTED");
- return -ECONNABORTED;
- }
-
- _leave(" = 0");
- return 0;
- }
-
-} /* end rxrpc_call_read_data() */
-
-/*****************************************************************************/
-/*
- * write data to a call
- * - the data may not be sent immediately if it doesn't fill a buffer
- * - if we can't queue all the data for buffering now, siov[] will have been
- * adjusted to take account of what has been sent
- */
-int rxrpc_call_write_data(struct rxrpc_call *call,
- size_t sioc,
- struct kvec *siov,
- u8 rxhdr_flags,
- gfp_t alloc_flags,
- int dup_data,
- size_t *size_sent)
-{
- struct rxrpc_message *msg;
- struct kvec *sptr;
- size_t space, size, chunk, tmp;
- char *buf;
- int ret;
-
- _enter("%p,%Zu,%p,%02x,%x,%d,%p",
- call, sioc, siov, rxhdr_flags, alloc_flags, dup_data,
- size_sent);
-
- *size_sent = 0;
- size = 0;
- ret = -EINVAL;
-
- /* can't send more if we've sent last packet from this end */
- switch (call->app_call_state) {
- case RXRPC_CSTATE_SRVR_SND_REPLY:
- case RXRPC_CSTATE_CLNT_SND_ARGS:
- break;
- case RXRPC_CSTATE_ERROR:
- ret = call->app_errno;
- default:
- goto out;
- }
-
- /* calculate how much data we've been given */
- sptr = siov;
- for (; sioc > 0; sptr++, sioc--) {
- if (!sptr->iov_len)
- continue;
-
- if (!sptr->iov_base)
- goto out;
-
- size += sptr->iov_len;
- }
-
- _debug("- size=%Zu mtu=%Zu", size, call->conn->mtu_size);
-
- do {
- /* make sure there's a message under construction */
- if (!call->snd_nextmsg) {
- /* no - allocate a message with no data yet attached */
- ret = rxrpc_conn_newmsg(call->conn, call,
- RXRPC_PACKET_TYPE_DATA,
- 0, NULL, alloc_flags,
- &call->snd_nextmsg);
- if (ret < 0)
- goto out;
- _debug("- allocated new message [ds=%Zu]",
- call->snd_nextmsg->dsize);
- }
-
- msg = call->snd_nextmsg;
- msg->hdr.flags |= rxhdr_flags;
-
- /* deal with zero-length terminal packet */
- if (size == 0) {
- if (rxhdr_flags & RXRPC_LAST_PACKET) {
- ret = rxrpc_call_flush(call);
- if (ret < 0)
- goto out;
- }
- break;
- }
-
- /* work out how much space current packet has available */
- space = call->conn->mtu_size - msg->dsize;
- chunk = min(space, size);
-
- _debug("- [before] space=%Zu chunk=%Zu", space, chunk);
-
- while (!siov->iov_len)
- siov++;
-
- /* if we are going to have to duplicate the data then coalesce
- * it too */
- if (dup_data) {
- /* don't allocate more that 1 page at a time */
- if (chunk > PAGE_SIZE)
- chunk = PAGE_SIZE;
-
- /* allocate a data buffer and attach to the message */
- buf = kmalloc(chunk, alloc_flags);
- if (unlikely(!buf)) {
- if (msg->dsize ==
- sizeof(struct rxrpc_header)) {
- /* discard an empty msg and wind back
- * the seq counter */
- rxrpc_put_message(msg);
- call->snd_nextmsg = NULL;
- call->snd_seq_count--;
- }
-
- ret = -ENOMEM;
- goto out;
- }
-
- tmp = msg->dcount++;
- set_bit(tmp, &msg->dfree);
- msg->data[tmp].iov_base = buf;
- msg->data[tmp].iov_len = chunk;
- msg->dsize += chunk;
- *size_sent += chunk;
- size -= chunk;
-
- /* load the buffer with data */
- while (chunk > 0) {
- tmp = min(chunk, siov->iov_len);
- memcpy(buf, siov->iov_base, tmp);
- buf += tmp;
- siov->iov_base += tmp;
- siov->iov_len -= tmp;
- if (!siov->iov_len)
- siov++;
- chunk -= tmp;
- }
- }
- else {
- /* we want to attach the supplied buffers directly */
- while (chunk > 0 &&
- msg->dcount < RXRPC_MSG_MAX_IOCS) {
- tmp = msg->dcount++;
- msg->data[tmp].iov_base = siov->iov_base;
- msg->data[tmp].iov_len = siov->iov_len;
- msg->dsize += siov->iov_len;
- *size_sent += siov->iov_len;
- size -= siov->iov_len;
- chunk -= siov->iov_len;
- siov++;
- }
- }
-
- _debug("- [loaded] chunk=%Zu size=%Zu", chunk, size);
-
- /* dispatch the message when full, final or requesting ACK */
- if (msg->dsize >= call->conn->mtu_size || rxhdr_flags) {
- ret = rxrpc_call_flush(call);
- if (ret < 0)
- goto out;
- }
-
- } while(size > 0);
-
- ret = 0;
- out:
- _leave(" = %d (%Zd queued, %Zd rem)", ret, *size_sent, size);
- return ret;
-
-} /* end rxrpc_call_write_data() */
-
-/*****************************************************************************/
-/*
- * flush outstanding packets to the network
- */
-static int rxrpc_call_flush(struct rxrpc_call *call)
-{
- struct rxrpc_message *msg;
- int ret = 0;
-
- _enter("%p", call);
-
- rxrpc_get_call(call);
-
- /* if there's a packet under construction, then dispatch it now */
- if (call->snd_nextmsg) {
- msg = call->snd_nextmsg;
- call->snd_nextmsg = NULL;
-
- if (msg->hdr.flags & RXRPC_LAST_PACKET) {
- msg->hdr.flags &= ~RXRPC_MORE_PACKETS;
- if (call->app_call_state != RXRPC_CSTATE_CLNT_SND_ARGS)
- msg->hdr.flags |= RXRPC_REQUEST_ACK;
- }
- else {
- msg->hdr.flags |= RXRPC_MORE_PACKETS;
- }
-
- _proto("Sending DATA message { ds=%Zu dc=%u df=%02lu }",
- msg->dsize, msg->dcount, msg->dfree);
-
- /* queue and adjust call state */
- spin_lock(&call->lock);
- list_add_tail(&msg->link, &call->acks_pendq);
-
- /* decide what to do depending on current state and if this is
- * the last packet */
- ret = -EINVAL;
- switch (call->app_call_state) {
- case RXRPC_CSTATE_SRVR_SND_REPLY:
- if (msg->hdr.flags & RXRPC_LAST_PACKET) {
- call->app_call_state =
- RXRPC_CSTATE_SRVR_RCV_FINAL_ACK;
- _state(call);
- }
- break;
-
- case RXRPC_CSTATE_CLNT_SND_ARGS:
- if (msg->hdr.flags & RXRPC_LAST_PACKET) {
- call->app_call_state =
- RXRPC_CSTATE_CLNT_RCV_REPLY;
- _state(call);
- }
- break;
-
- case RXRPC_CSTATE_ERROR:
- ret = call->app_errno;
- default:
- spin_unlock(&call->lock);
- goto out;
- }
-
- call->acks_pend_cnt++;
-
- mod_timer(&call->acks_timeout,
- __rxrpc_rtt_based_timeout(call,
- rxrpc_call_acks_timeout));
-
- spin_unlock(&call->lock);
-
- ret = rxrpc_conn_sendmsg(call->conn, msg);
- if (ret == 0)
- call->pkt_snd_count++;
- }
-
- out:
- rxrpc_put_call(call);
-
- _leave(" = %d", ret);
- return ret;
-
-} /* end rxrpc_call_flush() */
-
-/*****************************************************************************/
-/*
- * resend NAK'd or unacknowledged packets up to the highest one specified
- */
-static void rxrpc_call_resend(struct rxrpc_call *call, rxrpc_seq_t highest)
-{
- struct rxrpc_message *msg;
- struct list_head *_p;
- rxrpc_seq_t seq = 0;
-
- _enter("%p,%u", call, highest);
-
- _proto("Rx Resend required");
-
- /* handle too many resends */
- if (call->snd_resend_cnt >= rxrpc_call_max_resend) {
- _debug("Aborting due to too many resends (rcv=%d)",
- call->pkt_rcv_count);
- rxrpc_call_abort(call,
- call->pkt_rcv_count > 0 ? -EIO : -ETIMEDOUT);
- _leave("");
- return;
- }
-
- spin_lock(&call->lock);
- call->snd_resend_cnt++;
- for (;;) {
- /* determine which the next packet we might need to ACK is */
- if (seq <= call->acks_dftv_seq)
- seq = call->acks_dftv_seq;
- seq++;
-
- if (seq > highest)
- break;
-
- /* look for the packet in the pending-ACK queue */
- list_for_each(_p, &call->acks_pendq) {
- msg = list_entry(_p, struct rxrpc_message, link);
- if (msg->seq == seq)
- goto found_msg;
- }
-
- panic("%s(%p,%d):"
- " Inconsistent pending-ACK queue (ds=%u sc=%u sq=%u)\n",
- __FUNCTION__, call, highest,
- call->acks_dftv_seq, call->snd_seq_count, seq);
-
- found_msg:
- if (msg->state != RXRPC_MSG_SENT)
- continue; /* only un-ACK'd packets */
-
- rxrpc_get_message(msg);
- spin_unlock(&call->lock);
-
- /* send each message again (and ignore any errors we might
- * incur) */
- _proto("Resending DATA message { ds=%Zu dc=%u df=%02lu }",
- msg->dsize, msg->dcount, msg->dfree);
-
- if (rxrpc_conn_sendmsg(call->conn, msg) == 0)
- call->pkt_snd_count++;
-
- rxrpc_put_message(msg);
-
- spin_lock(&call->lock);
- }
-
- /* reset the timeout */
- mod_timer(&call->acks_timeout,
- __rxrpc_rtt_based_timeout(call, rxrpc_call_acks_timeout));
-
- spin_unlock(&call->lock);
-
- _leave("");
-} /* end rxrpc_call_resend() */
-
-/*****************************************************************************/
-/*
- * handle an ICMP error being applied to a call
- */
-void rxrpc_call_handle_error(struct rxrpc_call *call, int local, int errno)
-{
- _enter("%p{%u},%d", call, ntohl(call->call_id), errno);
-
- /* if this call is already aborted, then just wake up any waiters */
- if (call->app_call_state == RXRPC_CSTATE_ERROR) {
- call->app_error_func(call);
- }
- else {
- /* tell the app layer what happened */
- spin_lock(&call->lock);
- call->app_call_state = RXRPC_CSTATE_ERROR;
- _state(call);
- if (local)
- call->app_err_state = RXRPC_ESTATE_LOCAL_ERROR;
- else
- call->app_err_state = RXRPC_ESTATE_REMOTE_ERROR;
- call->app_errno = errno;
- call->app_mark = RXRPC_APP_MARK_EOF;
- call->app_read_buf = NULL;
- call->app_async_read = 0;
-
- /* map the error */
- call->app_aemap_func(call);
-
- del_timer_sync(&call->acks_timeout);
- del_timer_sync(&call->rcv_timeout);
- del_timer_sync(&call->ackr_dfr_timo);
-
- spin_unlock(&call->lock);
-
- call->app_error_func(call);
- }
-
- _leave("");
-} /* end rxrpc_call_handle_error() */
+++ /dev/null
-/* connection.c: Rx connection routines
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/message.h>
-#include <linux/udp.h>
-#include <linux/ip.h>
-#include <net/sock.h>
-#include <asm/uaccess.h>
-#include "internal.h"
-
-__RXACCT_DECL(atomic_t rxrpc_connection_count);
-
-LIST_HEAD(rxrpc_conns);
-DECLARE_RWSEM(rxrpc_conns_sem);
-unsigned long rxrpc_conn_timeout = 60 * 60;
-
-static void rxrpc_conn_do_timeout(struct rxrpc_connection *conn);
-
-static void __rxrpc_conn_timeout(rxrpc_timer_t *timer)
-{
- struct rxrpc_connection *conn =
- list_entry(timer, struct rxrpc_connection, timeout);
-
- _debug("Rx CONN TIMEOUT [%p{u=%d}]", conn, atomic_read(&conn->usage));
-
- rxrpc_conn_do_timeout(conn);
-}
-
-static const struct rxrpc_timer_ops rxrpc_conn_timer_ops = {
- .timed_out = __rxrpc_conn_timeout,
-};
-
-/*****************************************************************************/
-/*
- * create a new connection record
- */
-static inline int __rxrpc_create_connection(struct rxrpc_peer *peer,
- struct rxrpc_connection **_conn)
-{
- struct rxrpc_connection *conn;
-
- _enter("%p",peer);
-
- /* allocate and initialise a connection record */
- conn = kzalloc(sizeof(struct rxrpc_connection), GFP_KERNEL);
- if (!conn) {
- _leave(" = -ENOMEM");
- return -ENOMEM;
- }
-
- atomic_set(&conn->usage, 1);
-
- INIT_LIST_HEAD(&conn->link);
- INIT_LIST_HEAD(&conn->id_link);
- init_waitqueue_head(&conn->chanwait);
- spin_lock_init(&conn->lock);
- rxrpc_timer_init(&conn->timeout, &rxrpc_conn_timer_ops);
-
- do_gettimeofday(&conn->atime);
- conn->mtu_size = 1024;
- conn->peer = peer;
- conn->trans = peer->trans;
-
- __RXACCT(atomic_inc(&rxrpc_connection_count));
- *_conn = conn;
- _leave(" = 0 (%p)", conn);
-
- return 0;
-} /* end __rxrpc_create_connection() */
-
-/*****************************************************************************/
-/*
- * create a new connection record for outgoing connections
- */
-int rxrpc_create_connection(struct rxrpc_transport *trans,
- __be16 port,
- __be32 addr,
- uint16_t service_id,
- void *security,
- struct rxrpc_connection **_conn)
-{
- struct rxrpc_connection *candidate, *conn;
- struct rxrpc_peer *peer;
- struct list_head *_p;
- __be32 connid;
- int ret;
-
- _enter("%p{%hu},%u,%hu", trans, trans->port, ntohs(port), service_id);
-
- /* get a peer record */
- ret = rxrpc_peer_lookup(trans, addr, &peer);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- /* allocate and initialise a connection record */
- ret = __rxrpc_create_connection(peer, &candidate);
- if (ret < 0) {
- rxrpc_put_peer(peer);
- _leave(" = %d", ret);
- return ret;
- }
-
- /* fill in the specific bits */
- candidate->addr.sin_family = AF_INET;
- candidate->addr.sin_port = port;
- candidate->addr.sin_addr.s_addr = addr;
-
- candidate->in_epoch = rxrpc_epoch;
- candidate->out_epoch = rxrpc_epoch;
- candidate->in_clientflag = 0;
- candidate->out_clientflag = RXRPC_CLIENT_INITIATED;
- candidate->service_id = htons(service_id);
-
- /* invent a unique connection ID */
- write_lock(&peer->conn_idlock);
-
- try_next_id:
- connid = htonl(peer->conn_idcounter & RXRPC_CIDMASK);
- peer->conn_idcounter += RXRPC_MAXCALLS;
-
- list_for_each(_p, &peer->conn_idlist) {
- conn = list_entry(_p, struct rxrpc_connection, id_link);
- if (connid == conn->conn_id)
- goto try_next_id;
- if (connid > conn->conn_id)
- break;
- }
-
- _debug("selected candidate conn ID %x.%u",
- ntohl(peer->addr.s_addr), ntohl(connid));
-
- candidate->conn_id = connid;
- list_add_tail(&candidate->id_link, _p);
-
- write_unlock(&peer->conn_idlock);
-
- /* attach to peer */
- candidate->peer = peer;
-
- write_lock(&peer->conn_lock);
-
- /* search the peer's transport graveyard list */
- spin_lock(&peer->conn_gylock);
- list_for_each(_p, &peer->conn_graveyard) {
- conn = list_entry(_p, struct rxrpc_connection, link);
- if (conn->addr.sin_port == candidate->addr.sin_port &&
- conn->security_ix == candidate->security_ix &&
- conn->service_id == candidate->service_id &&
- conn->in_clientflag == 0)
- goto found_in_graveyard;
- }
- spin_unlock(&peer->conn_gylock);
-
- /* pick the new candidate */
- _debug("created connection: {%08x} [out]", ntohl(candidate->conn_id));
- atomic_inc(&peer->conn_count);
- conn = candidate;
- candidate = NULL;
-
- make_active:
- list_add_tail(&conn->link, &peer->conn_active);
- write_unlock(&peer->conn_lock);
-
- if (candidate) {
- write_lock(&peer->conn_idlock);
- list_del(&candidate->id_link);
- write_unlock(&peer->conn_idlock);
-
- __RXACCT(atomic_dec(&rxrpc_connection_count));
- kfree(candidate);
- }
- else {
- down_write(&rxrpc_conns_sem);
- list_add_tail(&conn->proc_link, &rxrpc_conns);
- up_write(&rxrpc_conns_sem);
- }
-
- *_conn = conn;
- _leave(" = 0 (%p)", conn);
-
- return 0;
-
- /* handle resurrecting a connection from the graveyard */
- found_in_graveyard:
- _debug("resurrecting connection: {%08x} [out]", ntohl(conn->conn_id));
- rxrpc_get_connection(conn);
- rxrpc_krxtimod_del_timer(&conn->timeout);
- list_del_init(&conn->link);
- spin_unlock(&peer->conn_gylock);
- goto make_active;
-} /* end rxrpc_create_connection() */
-
-/*****************************************************************************/
-/*
- * lookup the connection for an incoming packet
- * - create a new connection record for unrecorded incoming connections
- */
-int rxrpc_connection_lookup(struct rxrpc_peer *peer,
- struct rxrpc_message *msg,
- struct rxrpc_connection **_conn)
-{
- struct rxrpc_connection *conn, *candidate = NULL;
- struct list_head *_p;
- struct sk_buff *pkt = msg->pkt;
- int ret, fresh = 0;
- __be32 x_epoch, x_connid;
- __be16 x_port, x_servid;
- __u32 x_secix;
- u8 x_clflag;
-
- _enter("%p{{%hu}},%u,%hu",
- peer,
- peer->trans->port,
- ntohs(pkt->h.uh->source),
- ntohs(msg->hdr.serviceId));
-
- x_port = pkt->h.uh->source;
- x_epoch = msg->hdr.epoch;
- x_clflag = msg->hdr.flags & RXRPC_CLIENT_INITIATED;
- x_connid = htonl(ntohl(msg->hdr.cid) & RXRPC_CIDMASK);
- x_servid = msg->hdr.serviceId;
- x_secix = msg->hdr.securityIndex;
-
- /* [common case] search the transport's active list first */
- read_lock(&peer->conn_lock);
- list_for_each(_p, &peer->conn_active) {
- conn = list_entry(_p, struct rxrpc_connection, link);
- if (conn->addr.sin_port == x_port &&
- conn->in_epoch == x_epoch &&
- conn->conn_id == x_connid &&
- conn->security_ix == x_secix &&
- conn->service_id == x_servid &&
- conn->in_clientflag == x_clflag)
- goto found_active;
- }
- read_unlock(&peer->conn_lock);
-
- /* [uncommon case] not active
- * - create a candidate for a new record if an inbound connection
- * - only examine the graveyard for an outbound connection
- */
- if (x_clflag) {
- ret = __rxrpc_create_connection(peer, &candidate);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- /* fill in the specifics */
- candidate->addr.sin_family = AF_INET;
- candidate->addr.sin_port = x_port;
- candidate->addr.sin_addr.s_addr = pkt->nh.iph->saddr;
- candidate->in_epoch = x_epoch;
- candidate->out_epoch = x_epoch;
- candidate->in_clientflag = RXRPC_CLIENT_INITIATED;
- candidate->out_clientflag = 0;
- candidate->conn_id = x_connid;
- candidate->service_id = x_servid;
- candidate->security_ix = x_secix;
- }
-
- /* search the active list again, just in case it appeared whilst we
- * were busy */
- write_lock(&peer->conn_lock);
- list_for_each(_p, &peer->conn_active) {
- conn = list_entry(_p, struct rxrpc_connection, link);
- if (conn->addr.sin_port == x_port &&
- conn->in_epoch == x_epoch &&
- conn->conn_id == x_connid &&
- conn->security_ix == x_secix &&
- conn->service_id == x_servid &&
- conn->in_clientflag == x_clflag)
- goto found_active_second_chance;
- }
-
- /* search the transport's graveyard list */
- spin_lock(&peer->conn_gylock);
- list_for_each(_p, &peer->conn_graveyard) {
- conn = list_entry(_p, struct rxrpc_connection, link);
- if (conn->addr.sin_port == x_port &&
- conn->in_epoch == x_epoch &&
- conn->conn_id == x_connid &&
- conn->security_ix == x_secix &&
- conn->service_id == x_servid &&
- conn->in_clientflag == x_clflag)
- goto found_in_graveyard;
- }
- spin_unlock(&peer->conn_gylock);
-
- /* outbound connections aren't created here */
- if (!x_clflag) {
- write_unlock(&peer->conn_lock);
- _leave(" = -ENOENT");
- return -ENOENT;
- }
-
- /* we can now add the new candidate to the list */
- _debug("created connection: {%08x} [in]", ntohl(candidate->conn_id));
- rxrpc_get_peer(peer);
- conn = candidate;
- candidate = NULL;
- atomic_inc(&peer->conn_count);
- fresh = 1;
-
- make_active:
- list_add_tail(&conn->link, &peer->conn_active);
-
- success_uwfree:
- write_unlock(&peer->conn_lock);
-
- if (candidate) {
- write_lock(&peer->conn_idlock);
- list_del(&candidate->id_link);
- write_unlock(&peer->conn_idlock);
-
- __RXACCT(atomic_dec(&rxrpc_connection_count));
- kfree(candidate);
- }
-
- if (fresh) {
- down_write(&rxrpc_conns_sem);
- list_add_tail(&conn->proc_link, &rxrpc_conns);
- up_write(&rxrpc_conns_sem);
- }
-
- success:
- *_conn = conn;
- _leave(" = 0 (%p)", conn);
- return 0;
-
- /* handle the connection being found in the active list straight off */
- found_active:
- rxrpc_get_connection(conn);
- read_unlock(&peer->conn_lock);
- goto success;
-
- /* handle resurrecting a connection from the graveyard */
- found_in_graveyard:
- _debug("resurrecting connection: {%08x} [in]", ntohl(conn->conn_id));
- rxrpc_get_peer(peer);
- rxrpc_get_connection(conn);
- rxrpc_krxtimod_del_timer(&conn->timeout);
- list_del_init(&conn->link);
- spin_unlock(&peer->conn_gylock);
- goto make_active;
-
- /* handle finding the connection on the second time through the active
- * list */
- found_active_second_chance:
- rxrpc_get_connection(conn);
- goto success_uwfree;
-
-} /* end rxrpc_connection_lookup() */
-
-/*****************************************************************************/
-/*
- * finish using a connection record
- * - it will be transferred to the peer's connection graveyard when refcount
- * reaches 0
- */
-void rxrpc_put_connection(struct rxrpc_connection *conn)
-{
- struct rxrpc_peer *peer;
-
- if (!conn)
- return;
-
- _enter("%p{u=%d p=%hu}",
- conn, atomic_read(&conn->usage), ntohs(conn->addr.sin_port));
-
- peer = conn->peer;
- spin_lock(&peer->conn_gylock);
-
- /* sanity check */
- if (atomic_read(&conn->usage) <= 0)
- BUG();
-
- if (likely(!atomic_dec_and_test(&conn->usage))) {
- spin_unlock(&peer->conn_gylock);
- _leave("");
- return;
- }
-
- /* move to graveyard queue */
- _debug("burying connection: {%08x}", ntohl(conn->conn_id));
- list_move_tail(&conn->link, &peer->conn_graveyard);
-
- rxrpc_krxtimod_add_timer(&conn->timeout, rxrpc_conn_timeout * HZ);
-
- spin_unlock(&peer->conn_gylock);
-
- rxrpc_put_peer(conn->peer);
-
- _leave(" [killed]");
-} /* end rxrpc_put_connection() */
-
-/*****************************************************************************/
-/*
- * free a connection record
- */
-static void rxrpc_conn_do_timeout(struct rxrpc_connection *conn)
-{
- struct rxrpc_peer *peer;
-
- _enter("%p{u=%d p=%hu}",
- conn, atomic_read(&conn->usage), ntohs(conn->addr.sin_port));
-
- peer = conn->peer;
-
- if (atomic_read(&conn->usage) < 0)
- BUG();
-
- /* remove from graveyard if still dead */
- spin_lock(&peer->conn_gylock);
- if (atomic_read(&conn->usage) == 0) {
- list_del_init(&conn->link);
- }
- else {
- conn = NULL;
- }
- spin_unlock(&peer->conn_gylock);
-
- if (!conn) {
- _leave("");
- return; /* resurrected */
- }
-
- _debug("--- Destroying Connection %p{%08x} ---",
- conn, ntohl(conn->conn_id));
-
- down_write(&rxrpc_conns_sem);
- list_del(&conn->proc_link);
- up_write(&rxrpc_conns_sem);
-
- write_lock(&peer->conn_idlock);
- list_del(&conn->id_link);
- write_unlock(&peer->conn_idlock);
-
- __RXACCT(atomic_dec(&rxrpc_connection_count));
- kfree(conn);
-
- /* if the graveyard is now empty, wake up anyone waiting for that */
- if (atomic_dec_and_test(&peer->conn_count))
- wake_up(&peer->conn_gy_waitq);
-
- _leave(" [destroyed]");
-} /* end rxrpc_conn_do_timeout() */
-
-/*****************************************************************************/
-/*
- * clear all connection records from a peer endpoint
- */
-void rxrpc_conn_clearall(struct rxrpc_peer *peer)
-{
- DECLARE_WAITQUEUE(myself, current);
-
- struct rxrpc_connection *conn;
- int err;
-
- _enter("%p", peer);
-
- /* there shouldn't be any active conns remaining */
- if (!list_empty(&peer->conn_active))
- BUG();
-
- /* manually timeout all conns in the graveyard */
- spin_lock(&peer->conn_gylock);
- while (!list_empty(&peer->conn_graveyard)) {
- conn = list_entry(peer->conn_graveyard.next,
- struct rxrpc_connection, link);
- err = rxrpc_krxtimod_del_timer(&conn->timeout);
- spin_unlock(&peer->conn_gylock);
-
- if (err == 0)
- rxrpc_conn_do_timeout(conn);
-
- spin_lock(&peer->conn_gylock);
- }
- spin_unlock(&peer->conn_gylock);
-
- /* wait for the the conn graveyard to be completely cleared */
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&peer->conn_gy_waitq, &myself);
-
- while (atomic_read(&peer->conn_count) != 0) {
- schedule();
- set_current_state(TASK_UNINTERRUPTIBLE);
- }
-
- remove_wait_queue(&peer->conn_gy_waitq, &myself);
- set_current_state(TASK_RUNNING);
-
- _leave("");
-} /* end rxrpc_conn_clearall() */
-
-/*****************************************************************************/
-/*
- * allocate and prepare a message for sending out through the transport
- * endpoint
- */
-int rxrpc_conn_newmsg(struct rxrpc_connection *conn,
- struct rxrpc_call *call,
- uint8_t type,
- int dcount,
- struct kvec diov[],
- gfp_t alloc_flags,
- struct rxrpc_message **_msg)
-{
- struct rxrpc_message *msg;
- int loop;
-
- _enter("%p{%d},%p,%u", conn, ntohs(conn->addr.sin_port), call, type);
-
- if (dcount > 3) {
- _leave(" = -EINVAL");
- return -EINVAL;
- }
-
- msg = kzalloc(sizeof(struct rxrpc_message), alloc_flags);
- if (!msg) {
- _leave(" = -ENOMEM");
- return -ENOMEM;
- }
-
- atomic_set(&msg->usage, 1);
-
- INIT_LIST_HEAD(&msg->link);
-
- msg->state = RXRPC_MSG_PREPARED;
-
- msg->hdr.epoch = conn->out_epoch;
- msg->hdr.cid = conn->conn_id | (call ? call->chan_ix : 0);
- msg->hdr.callNumber = call ? call->call_id : 0;
- msg->hdr.type = type;
- msg->hdr.flags = conn->out_clientflag;
- msg->hdr.securityIndex = conn->security_ix;
- msg->hdr.serviceId = conn->service_id;
-
- /* generate sequence numbers for data packets */
- if (call) {
- switch (type) {
- case RXRPC_PACKET_TYPE_DATA:
- msg->seq = ++call->snd_seq_count;
- msg->hdr.seq = htonl(msg->seq);
- break;
- case RXRPC_PACKET_TYPE_ACK:
- /* ACK sequence numbers are complicated. The following
- * may be wrong:
- * - jumbo packet ACKs should have a seq number
- * - normal ACKs should not
- */
- default:
- break;
- }
- }
-
- msg->dcount = dcount + 1;
- msg->dsize = sizeof(msg->hdr);
- msg->data[0].iov_len = sizeof(msg->hdr);
- msg->data[0].iov_base = &msg->hdr;
-
- for (loop=0; loop < dcount; loop++) {
- msg->dsize += diov[loop].iov_len;
- msg->data[loop+1].iov_len = diov[loop].iov_len;
- msg->data[loop+1].iov_base = diov[loop].iov_base;
- }
-
- __RXACCT(atomic_inc(&rxrpc_message_count));
- *_msg = msg;
- _leave(" = 0 (%p) #%d", msg, atomic_read(&rxrpc_message_count));
- return 0;
-} /* end rxrpc_conn_newmsg() */
-
-/*****************************************************************************/
-/*
- * free a message
- */
-void __rxrpc_put_message(struct rxrpc_message *msg)
-{
- int loop;
-
- _enter("%p #%d", msg, atomic_read(&rxrpc_message_count));
-
- if (msg->pkt)
- kfree_skb(msg->pkt);
- rxrpc_put_connection(msg->conn);
-
- for (loop = 0; loop < 8; loop++)
- if (test_bit(loop, &msg->dfree))
- kfree(msg->data[loop].iov_base);
-
- __RXACCT(atomic_dec(&rxrpc_message_count));
- kfree(msg);
-
- _leave("");
-} /* end __rxrpc_put_message() */
-
-/*****************************************************************************/
-/*
- * send a message out through the transport endpoint
- */
-int rxrpc_conn_sendmsg(struct rxrpc_connection *conn,
- struct rxrpc_message *msg)
-{
- struct msghdr msghdr;
- int ret;
-
- _enter("%p{%d}", conn, ntohs(conn->addr.sin_port));
-
- /* fill in some fields in the header */
- spin_lock(&conn->lock);
- msg->hdr.serial = htonl(++conn->serial_counter);
- msg->rttdone = 0;
- spin_unlock(&conn->lock);
-
- /* set up the message to be transmitted */
- msghdr.msg_name = &conn->addr;
- msghdr.msg_namelen = sizeof(conn->addr);
- msghdr.msg_control = NULL;
- msghdr.msg_controllen = 0;
- msghdr.msg_flags = MSG_CONFIRM | MSG_DONTWAIT;
-
- _net("Sending message type %d of %Zd bytes to %08x:%d",
- msg->hdr.type,
- msg->dsize,
- ntohl(conn->addr.sin_addr.s_addr),
- ntohs(conn->addr.sin_port));
-
- /* send the message */
- ret = kernel_sendmsg(conn->trans->socket, &msghdr,
- msg->data, msg->dcount, msg->dsize);
- if (ret < 0) {
- msg->state = RXRPC_MSG_ERROR;
- } else {
- msg->state = RXRPC_MSG_SENT;
- ret = 0;
-
- spin_lock(&conn->lock);
- do_gettimeofday(&conn->atime);
- msg->stamp = conn->atime;
- spin_unlock(&conn->lock);
- }
-
- _leave(" = %d", ret);
-
- return ret;
-} /* end rxrpc_conn_sendmsg() */
-
-/*****************************************************************************/
-/*
- * deal with a subsequent call packet
- */
-int rxrpc_conn_receive_call_packet(struct rxrpc_connection *conn,
- struct rxrpc_call *call,
- struct rxrpc_message *msg)
-{
- struct rxrpc_message *pmsg;
- struct dst_entry *dst;
- struct list_head *_p;
- unsigned cix, seq;
- int ret = 0;
-
- _enter("%p,%p,%p", conn, call, msg);
-
- if (!call) {
- cix = ntohl(msg->hdr.cid) & RXRPC_CHANNELMASK;
-
- spin_lock(&conn->lock);
- call = conn->channels[cix];
-
- if (!call || call->call_id != msg->hdr.callNumber) {
- spin_unlock(&conn->lock);
- rxrpc_trans_immediate_abort(conn->trans, msg, -ENOENT);
- goto out;
- }
- else {
- rxrpc_get_call(call);
- spin_unlock(&conn->lock);
- }
- }
- else {
- rxrpc_get_call(call);
- }
-
- _proto("Received packet %%%u [%u] on call %hu:%u:%u",
- ntohl(msg->hdr.serial),
- ntohl(msg->hdr.seq),
- ntohs(msg->hdr.serviceId),
- ntohl(conn->conn_id),
- ntohl(call->call_id));
-
- call->pkt_rcv_count++;
-
- dst = msg->pkt->dst;
- if (dst && dst->dev)
- conn->peer->if_mtu =
- dst->dev->mtu - dst->dev->hard_header_len;
-
- /* queue on the call in seq order */
- rxrpc_get_message(msg);
- seq = msg->seq;
-
- spin_lock(&call->lock);
- list_for_each(_p, &call->rcv_receiveq) {
- pmsg = list_entry(_p, struct rxrpc_message, link);
- if (pmsg->seq > seq)
- break;
- }
- list_add_tail(&msg->link, _p);
-
- /* reset the activity timeout */
- call->flags |= RXRPC_CALL_RCV_PKT;
- mod_timer(&call->rcv_timeout,jiffies + rxrpc_call_rcv_timeout * HZ);
-
- spin_unlock(&call->lock);
-
- rxrpc_krxiod_queue_call(call);
-
- rxrpc_put_call(call);
- out:
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_conn_receive_call_packet() */
-
-/*****************************************************************************/
-/*
- * handle an ICMP error being applied to a connection
- */
-void rxrpc_conn_handle_error(struct rxrpc_connection *conn,
- int local, int errno)
-{
- struct rxrpc_call *calls[4];
- int loop;
-
- _enter("%p{%d},%d", conn, ntohs(conn->addr.sin_port), errno);
-
- /* get a ref to all my calls in one go */
- memset(calls, 0, sizeof(calls));
- spin_lock(&conn->lock);
-
- for (loop = 3; loop >= 0; loop--) {
- if (conn->channels[loop]) {
- calls[loop] = conn->channels[loop];
- rxrpc_get_call(calls[loop]);
- }
- }
-
- spin_unlock(&conn->lock);
-
- /* now kick them all */
- for (loop = 3; loop >= 0; loop--) {
- if (calls[loop]) {
- rxrpc_call_handle_error(calls[loop], local, errno);
- rxrpc_put_call(calls[loop]);
- }
- }
-
- _leave("");
-} /* end rxrpc_conn_handle_error() */
+++ /dev/null
-/* internal.h: internal Rx RPC stuff
- *
- * Copyright (c) 2002 David Howells (dhowells@redhat.com).
- */
-
-#ifndef RXRPC_INTERNAL_H
-#define RXRPC_INTERNAL_H
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-
-/*
- * debug accounting
- */
-#if 1
-#define __RXACCT_DECL(X) X
-#define __RXACCT(X) do { X; } while(0)
-#else
-#define __RXACCT_DECL(X)
-#define __RXACCT(X) do { } while(0)
-#endif
-
-__RXACCT_DECL(extern atomic_t rxrpc_transport_count);
-__RXACCT_DECL(extern atomic_t rxrpc_peer_count);
-__RXACCT_DECL(extern atomic_t rxrpc_connection_count);
-__RXACCT_DECL(extern atomic_t rxrpc_call_count);
-__RXACCT_DECL(extern atomic_t rxrpc_message_count);
-
-/*
- * debug tracing
- */
-#define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ##a)
-#define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ##a)
-#define kdebug(FMT, a...) printk(" "FMT"\n" , ##a)
-#define kproto(FMT, a...) printk("### "FMT"\n" , ##a)
-#define knet(FMT, a...) printk(" "FMT"\n" , ##a)
-
-#if 0
-#define _enter(FMT, a...) kenter(FMT , ##a)
-#define _leave(FMT, a...) kleave(FMT , ##a)
-#define _debug(FMT, a...) kdebug(FMT , ##a)
-#define _proto(FMT, a...) kproto(FMT , ##a)
-#define _net(FMT, a...) knet(FMT , ##a)
-#else
-#define _enter(FMT, a...) do { if (rxrpc_ktrace) kenter(FMT , ##a); } while(0)
-#define _leave(FMT, a...) do { if (rxrpc_ktrace) kleave(FMT , ##a); } while(0)
-#define _debug(FMT, a...) do { if (rxrpc_kdebug) kdebug(FMT , ##a); } while(0)
-#define _proto(FMT, a...) do { if (rxrpc_kproto) kproto(FMT , ##a); } while(0)
-#define _net(FMT, a...) do { if (rxrpc_knet) knet (FMT , ##a); } while(0)
-#endif
-
-static inline void rxrpc_discard_my_signals(void)
-{
- while (signal_pending(current)) {
- siginfo_t sinfo;
-
- spin_lock_irq(¤t->sighand->siglock);
- dequeue_signal(current, ¤t->blocked, &sinfo);
- spin_unlock_irq(¤t->sighand->siglock);
- }
-}
-
-/*
- * call.c
- */
-extern struct list_head rxrpc_calls;
-extern struct rw_semaphore rxrpc_calls_sem;
-
-/*
- * connection.c
- */
-extern struct list_head rxrpc_conns;
-extern struct rw_semaphore rxrpc_conns_sem;
-extern unsigned long rxrpc_conn_timeout;
-
-extern void rxrpc_conn_clearall(struct rxrpc_peer *peer);
-
-/*
- * peer.c
- */
-extern struct list_head rxrpc_peers;
-extern struct rw_semaphore rxrpc_peers_sem;
-extern unsigned long rxrpc_peer_timeout;
-
-extern void rxrpc_peer_calculate_rtt(struct rxrpc_peer *peer,
- struct rxrpc_message *msg,
- struct rxrpc_message *resp);
-
-extern void rxrpc_peer_clearall(struct rxrpc_transport *trans);
-
-
-/*
- * proc.c
- */
-#ifdef CONFIG_PROC_FS
-extern int rxrpc_proc_init(void);
-extern void rxrpc_proc_cleanup(void);
-#endif
-
-/*
- * transport.c
- */
-extern struct list_head rxrpc_proc_transports;
-extern struct rw_semaphore rxrpc_proc_transports_sem;
-
-#endif /* RXRPC_INTERNAL_H */
+++ /dev/null
-/* krxiod.c: Rx I/O daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/completion.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <linux/freezer.h>
-#include <rxrpc/krxiod.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/call.h>
-#include "internal.h"
-
-static DECLARE_WAIT_QUEUE_HEAD(rxrpc_krxiod_sleepq);
-static DECLARE_COMPLETION(rxrpc_krxiod_dead);
-
-static atomic_t rxrpc_krxiod_qcount = ATOMIC_INIT(0);
-
-static LIST_HEAD(rxrpc_krxiod_transportq);
-static DEFINE_SPINLOCK(rxrpc_krxiod_transportq_lock);
-
-static LIST_HEAD(rxrpc_krxiod_callq);
-static DEFINE_SPINLOCK(rxrpc_krxiod_callq_lock);
-
-static volatile int rxrpc_krxiod_die;
-
-/*****************************************************************************/
-/*
- * Rx I/O daemon
- */
-static int rxrpc_krxiod(void *arg)
-{
- DECLARE_WAITQUEUE(krxiod,current);
-
- printk("Started krxiod %d\n",current->pid);
-
- daemonize("krxiod");
-
- /* loop around waiting for work to do */
- do {
- /* wait for work or to be told to exit */
- _debug("### Begin Wait");
- if (!atomic_read(&rxrpc_krxiod_qcount)) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- add_wait_queue(&rxrpc_krxiod_sleepq, &krxiod);
-
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (atomic_read(&rxrpc_krxiod_qcount) ||
- rxrpc_krxiod_die ||
- signal_pending(current))
- break;
-
- schedule();
- }
-
- remove_wait_queue(&rxrpc_krxiod_sleepq, &krxiod);
- set_current_state(TASK_RUNNING);
- }
- _debug("### End Wait");
-
- /* do work if been given some to do */
- _debug("### Begin Work");
-
- /* see if there's a transport in need of attention */
- if (!list_empty(&rxrpc_krxiod_transportq)) {
- struct rxrpc_transport *trans = NULL;
-
- spin_lock_irq(&rxrpc_krxiod_transportq_lock);
-
- if (!list_empty(&rxrpc_krxiod_transportq)) {
- trans = list_entry(
- rxrpc_krxiod_transportq.next,
- struct rxrpc_transport,
- krxiodq_link);
-
- list_del_init(&trans->krxiodq_link);
- atomic_dec(&rxrpc_krxiod_qcount);
-
- /* make sure it hasn't gone away and doesn't go
- * away */
- if (atomic_read(&trans->usage)>0)
- rxrpc_get_transport(trans);
- else
- trans = NULL;
- }
-
- spin_unlock_irq(&rxrpc_krxiod_transportq_lock);
-
- if (trans) {
- rxrpc_trans_receive_packet(trans);
- rxrpc_put_transport(trans);
- }
- }
-
- /* see if there's a call in need of attention */
- if (!list_empty(&rxrpc_krxiod_callq)) {
- struct rxrpc_call *call = NULL;
-
- spin_lock_irq(&rxrpc_krxiod_callq_lock);
-
- if (!list_empty(&rxrpc_krxiod_callq)) {
- call = list_entry(rxrpc_krxiod_callq.next,
- struct rxrpc_call,
- rcv_krxiodq_lk);
- list_del_init(&call->rcv_krxiodq_lk);
- atomic_dec(&rxrpc_krxiod_qcount);
-
- /* make sure it hasn't gone away and doesn't go
- * away */
- if (atomic_read(&call->usage) > 0) {
- _debug("@@@ KRXIOD"
- " Begin Attend Call %p", call);
- rxrpc_get_call(call);
- }
- else {
- call = NULL;
- }
- }
-
- spin_unlock_irq(&rxrpc_krxiod_callq_lock);
-
- if (call) {
- rxrpc_call_do_stuff(call);
- rxrpc_put_call(call);
- _debug("@@@ KRXIOD End Attend Call %p", call);
- }
- }
-
- _debug("### End Work");
-
- try_to_freeze();
-
- /* discard pending signals */
- rxrpc_discard_my_signals();
-
- } while (!rxrpc_krxiod_die);
-
- /* and that's all */
- complete_and_exit(&rxrpc_krxiod_dead, 0);
-
-} /* end rxrpc_krxiod() */
-
-/*****************************************************************************/
-/*
- * start up a krxiod daemon
- */
-int __init rxrpc_krxiod_init(void)
-{
- return kernel_thread(rxrpc_krxiod, NULL, 0);
-
-} /* end rxrpc_krxiod_init() */
-
-/*****************************************************************************/
-/*
- * kill the krxiod daemon and wait for it to complete
- */
-void rxrpc_krxiod_kill(void)
-{
- rxrpc_krxiod_die = 1;
- wake_up_all(&rxrpc_krxiod_sleepq);
- wait_for_completion(&rxrpc_krxiod_dead);
-
-} /* end rxrpc_krxiod_kill() */
-
-/*****************************************************************************/
-/*
- * queue a transport for attention by krxiod
- */
-void rxrpc_krxiod_queue_transport(struct rxrpc_transport *trans)
-{
- unsigned long flags;
-
- _enter("");
-
- if (list_empty(&trans->krxiodq_link)) {
- spin_lock_irqsave(&rxrpc_krxiod_transportq_lock, flags);
-
- if (list_empty(&trans->krxiodq_link)) {
- if (atomic_read(&trans->usage) > 0) {
- list_add_tail(&trans->krxiodq_link,
- &rxrpc_krxiod_transportq);
- atomic_inc(&rxrpc_krxiod_qcount);
- }
- }
-
- spin_unlock_irqrestore(&rxrpc_krxiod_transportq_lock, flags);
- wake_up_all(&rxrpc_krxiod_sleepq);
- }
-
- _leave("");
-
-} /* end rxrpc_krxiod_queue_transport() */
-
-/*****************************************************************************/
-/*
- * dequeue a transport from krxiod's attention queue
- */
-void rxrpc_krxiod_dequeue_transport(struct rxrpc_transport *trans)
-{
- unsigned long flags;
-
- _enter("");
-
- spin_lock_irqsave(&rxrpc_krxiod_transportq_lock, flags);
- if (!list_empty(&trans->krxiodq_link)) {
- list_del_init(&trans->krxiodq_link);
- atomic_dec(&rxrpc_krxiod_qcount);
- }
- spin_unlock_irqrestore(&rxrpc_krxiod_transportq_lock, flags);
-
- _leave("");
-
-} /* end rxrpc_krxiod_dequeue_transport() */
-
-/*****************************************************************************/
-/*
- * queue a call for attention by krxiod
- */
-void rxrpc_krxiod_queue_call(struct rxrpc_call *call)
-{
- unsigned long flags;
-
- if (list_empty(&call->rcv_krxiodq_lk)) {
- spin_lock_irqsave(&rxrpc_krxiod_callq_lock, flags);
- if (atomic_read(&call->usage) > 0) {
- list_add_tail(&call->rcv_krxiodq_lk,
- &rxrpc_krxiod_callq);
- atomic_inc(&rxrpc_krxiod_qcount);
- }
- spin_unlock_irqrestore(&rxrpc_krxiod_callq_lock, flags);
- }
- wake_up_all(&rxrpc_krxiod_sleepq);
-
-} /* end rxrpc_krxiod_queue_call() */
-
-/*****************************************************************************/
-/*
- * dequeue a call from krxiod's attention queue
- */
-void rxrpc_krxiod_dequeue_call(struct rxrpc_call *call)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&rxrpc_krxiod_callq_lock, flags);
- if (!list_empty(&call->rcv_krxiodq_lk)) {
- list_del_init(&call->rcv_krxiodq_lk);
- atomic_dec(&rxrpc_krxiod_qcount);
- }
- spin_unlock_irqrestore(&rxrpc_krxiod_callq_lock, flags);
-
-} /* end rxrpc_krxiod_dequeue_call() */
+++ /dev/null
-/* krxsecd.c: Rx security daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * This daemon deals with:
- * - consulting the application as to whether inbound peers and calls should be authorised
- * - generating security challenges for inbound connections
- * - responding to security challenges on outbound connections
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/completion.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <rxrpc/krxsecd.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/message.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/call.h>
-#include <linux/udp.h>
-#include <linux/ip.h>
-#include <linux/freezer.h>
-#include <net/sock.h>
-#include "internal.h"
-
-static DECLARE_WAIT_QUEUE_HEAD(rxrpc_krxsecd_sleepq);
-static DECLARE_COMPLETION(rxrpc_krxsecd_dead);
-static volatile int rxrpc_krxsecd_die;
-
-static atomic_t rxrpc_krxsecd_qcount;
-
-/* queue of unprocessed inbound messages with seqno #1 and
- * RXRPC_CLIENT_INITIATED flag set */
-static LIST_HEAD(rxrpc_krxsecd_initmsgq);
-static DEFINE_SPINLOCK(rxrpc_krxsecd_initmsgq_lock);
-
-static void rxrpc_krxsecd_process_incoming_call(struct rxrpc_message *msg);
-
-/*****************************************************************************/
-/*
- * Rx security daemon
- */
-static int rxrpc_krxsecd(void *arg)
-{
- DECLARE_WAITQUEUE(krxsecd, current);
-
- int die;
-
- printk("Started krxsecd %d\n", current->pid);
-
- daemonize("krxsecd");
-
- /* loop around waiting for work to do */
- do {
- /* wait for work or to be told to exit */
- _debug("### Begin Wait");
- if (!atomic_read(&rxrpc_krxsecd_qcount)) {
- set_current_state(TASK_INTERRUPTIBLE);
-
- add_wait_queue(&rxrpc_krxsecd_sleepq, &krxsecd);
-
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- if (atomic_read(&rxrpc_krxsecd_qcount) ||
- rxrpc_krxsecd_die ||
- signal_pending(current))
- break;
-
- schedule();
- }
-
- remove_wait_queue(&rxrpc_krxsecd_sleepq, &krxsecd);
- set_current_state(TASK_RUNNING);
- }
- die = rxrpc_krxsecd_die;
- _debug("### End Wait");
-
- /* see if there're incoming calls in need of authenticating */
- _debug("### Begin Inbound Calls");
-
- if (!list_empty(&rxrpc_krxsecd_initmsgq)) {
- struct rxrpc_message *msg = NULL;
-
- spin_lock(&rxrpc_krxsecd_initmsgq_lock);
-
- if (!list_empty(&rxrpc_krxsecd_initmsgq)) {
- msg = list_entry(rxrpc_krxsecd_initmsgq.next,
- struct rxrpc_message, link);
- list_del_init(&msg->link);
- atomic_dec(&rxrpc_krxsecd_qcount);
- }
-
- spin_unlock(&rxrpc_krxsecd_initmsgq_lock);
-
- if (msg) {
- rxrpc_krxsecd_process_incoming_call(msg);
- rxrpc_put_message(msg);
- }
- }
-
- _debug("### End Inbound Calls");
-
- try_to_freeze();
-
- /* discard pending signals */
- rxrpc_discard_my_signals();
-
- } while (!die);
-
- /* and that's all */
- complete_and_exit(&rxrpc_krxsecd_dead, 0);
-
-} /* end rxrpc_krxsecd() */
-
-/*****************************************************************************/
-/*
- * start up a krxsecd daemon
- */
-int __init rxrpc_krxsecd_init(void)
-{
- return kernel_thread(rxrpc_krxsecd, NULL, 0);
-
-} /* end rxrpc_krxsecd_init() */
-
-/*****************************************************************************/
-/*
- * kill the krxsecd daemon and wait for it to complete
- */
-void rxrpc_krxsecd_kill(void)
-{
- rxrpc_krxsecd_die = 1;
- wake_up_all(&rxrpc_krxsecd_sleepq);
- wait_for_completion(&rxrpc_krxsecd_dead);
-
-} /* end rxrpc_krxsecd_kill() */
-
-/*****************************************************************************/
-/*
- * clear all pending incoming calls for the specified transport
- */
-void rxrpc_krxsecd_clear_transport(struct rxrpc_transport *trans)
-{
- LIST_HEAD(tmp);
-
- struct rxrpc_message *msg;
- struct list_head *_p, *_n;
-
- _enter("%p",trans);
-
- /* move all the messages for this transport onto a temp list */
- spin_lock(&rxrpc_krxsecd_initmsgq_lock);
-
- list_for_each_safe(_p, _n, &rxrpc_krxsecd_initmsgq) {
- msg = list_entry(_p, struct rxrpc_message, link);
- if (msg->trans == trans) {
- list_move_tail(&msg->link, &tmp);
- atomic_dec(&rxrpc_krxsecd_qcount);
- }
- }
-
- spin_unlock(&rxrpc_krxsecd_initmsgq_lock);
-
- /* zap all messages on the temp list */
- while (!list_empty(&tmp)) {
- msg = list_entry(tmp.next, struct rxrpc_message, link);
- list_del_init(&msg->link);
- rxrpc_put_message(msg);
- }
-
- _leave("");
-} /* end rxrpc_krxsecd_clear_transport() */
-
-/*****************************************************************************/
-/*
- * queue a message on the incoming calls list
- */
-void rxrpc_krxsecd_queue_incoming_call(struct rxrpc_message *msg)
-{
- _enter("%p", msg);
-
- /* queue for processing by krxsecd */
- spin_lock(&rxrpc_krxsecd_initmsgq_lock);
-
- if (!rxrpc_krxsecd_die) {
- rxrpc_get_message(msg);
- list_add_tail(&msg->link, &rxrpc_krxsecd_initmsgq);
- atomic_inc(&rxrpc_krxsecd_qcount);
- }
-
- spin_unlock(&rxrpc_krxsecd_initmsgq_lock);
-
- wake_up(&rxrpc_krxsecd_sleepq);
-
- _leave("");
-} /* end rxrpc_krxsecd_queue_incoming_call() */
-
-/*****************************************************************************/
-/*
- * process the initial message of an incoming call
- */
-void rxrpc_krxsecd_process_incoming_call(struct rxrpc_message *msg)
-{
- struct rxrpc_transport *trans = msg->trans;
- struct rxrpc_service *srv;
- struct rxrpc_call *call;
- struct list_head *_p;
- unsigned short sid;
- int ret;
-
- _enter("%p{tr=%p}", msg, trans);
-
- ret = rxrpc_incoming_call(msg->conn, msg, &call);
- if (ret < 0)
- goto out;
-
- /* find the matching service on the transport */
- sid = ntohs(msg->hdr.serviceId);
- srv = NULL;
-
- spin_lock(&trans->lock);
- list_for_each(_p, &trans->services) {
- srv = list_entry(_p, struct rxrpc_service, link);
- if (srv->service_id == sid && try_module_get(srv->owner)) {
- /* found a match (made sure it won't vanish) */
- _debug("found service '%s'", srv->name);
- call->owner = srv->owner;
- break;
- }
- }
- spin_unlock(&trans->lock);
-
- /* report the new connection
- * - the func must inc the call's usage count to keep it
- */
- ret = -ENOENT;
- if (_p != &trans->services) {
- /* attempt to accept the call */
- call->conn->service = srv;
- call->app_attn_func = srv->attn_func;
- call->app_error_func = srv->error_func;
- call->app_aemap_func = srv->aemap_func;
-
- ret = srv->new_call(call);
-
- /* send an abort if an error occurred */
- if (ret < 0) {
- rxrpc_call_abort(call, ret);
- }
- else {
- /* formally receive and ACK the new packet */
- ret = rxrpc_conn_receive_call_packet(call->conn,
- call, msg);
- }
- }
-
- rxrpc_put_call(call);
- out:
- if (ret < 0)
- rxrpc_trans_immediate_abort(trans, msg, ret);
-
- _leave(" (%d)", ret);
-} /* end rxrpc_krxsecd_process_incoming_call() */
+++ /dev/null
-/* krxtimod.c: RXRPC timeout daemon
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/completion.h>
-#include <linux/freezer.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/krxtimod.h>
-#include <asm/errno.h>
-#include "internal.h"
-
-static DECLARE_COMPLETION(krxtimod_alive);
-static DECLARE_COMPLETION(krxtimod_dead);
-static DECLARE_WAIT_QUEUE_HEAD(krxtimod_sleepq);
-static int krxtimod_die;
-
-static LIST_HEAD(krxtimod_list);
-static DEFINE_SPINLOCK(krxtimod_lock);
-
-static int krxtimod(void *arg);
-
-/*****************************************************************************/
-/*
- * start the timeout daemon
- */
-int rxrpc_krxtimod_start(void)
-{
- int ret;
-
- ret = kernel_thread(krxtimod, NULL, 0);
- if (ret < 0)
- return ret;
-
- wait_for_completion(&krxtimod_alive);
-
- return ret;
-} /* end rxrpc_krxtimod_start() */
-
-/*****************************************************************************/
-/*
- * stop the timeout daemon
- */
-void rxrpc_krxtimod_kill(void)
-{
- /* get rid of my daemon */
- krxtimod_die = 1;
- wake_up(&krxtimod_sleepq);
- wait_for_completion(&krxtimod_dead);
-
-} /* end rxrpc_krxtimod_kill() */
-
-/*****************************************************************************/
-/*
- * timeout processing daemon
- */
-static int krxtimod(void *arg)
-{
- DECLARE_WAITQUEUE(myself, current);
-
- rxrpc_timer_t *timer;
-
- printk("Started krxtimod %d\n", current->pid);
-
- daemonize("krxtimod");
-
- complete(&krxtimod_alive);
-
- /* loop around looking for things to attend to */
- loop:
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&krxtimod_sleepq, &myself);
-
- for (;;) {
- unsigned long jif;
- long timeout;
-
- /* deal with the server being asked to die */
- if (krxtimod_die) {
- remove_wait_queue(&krxtimod_sleepq, &myself);
- _leave("");
- complete_and_exit(&krxtimod_dead, 0);
- }
-
- try_to_freeze();
-
- /* discard pending signals */
- rxrpc_discard_my_signals();
-
- /* work out the time to elapse before the next event */
- spin_lock(&krxtimod_lock);
- if (list_empty(&krxtimod_list)) {
- timeout = MAX_SCHEDULE_TIMEOUT;
- }
- else {
- timer = list_entry(krxtimod_list.next,
- rxrpc_timer_t, link);
- timeout = timer->timo_jif;
- jif = jiffies;
-
- if (time_before_eq((unsigned long) timeout, jif))
- goto immediate;
-
- else {
- timeout = (long) timeout - (long) jiffies;
- }
- }
- spin_unlock(&krxtimod_lock);
-
- schedule_timeout(timeout);
-
- set_current_state(TASK_INTERRUPTIBLE);
- }
-
- /* the thing on the front of the queue needs processing
- * - we come here with the lock held and timer pointing to the expired
- * entry
- */
- immediate:
- remove_wait_queue(&krxtimod_sleepq, &myself);
- set_current_state(TASK_RUNNING);
-
- _debug("@@@ Begin Timeout of %p", timer);
-
- /* dequeue the timer */
- list_del_init(&timer->link);
- spin_unlock(&krxtimod_lock);
-
- /* call the timeout function */
- timer->ops->timed_out(timer);
-
- _debug("@@@ End Timeout");
- goto loop;
-
-} /* end krxtimod() */
-
-/*****************************************************************************/
-/*
- * (re-)queue a timer
- */
-void rxrpc_krxtimod_add_timer(rxrpc_timer_t *timer, unsigned long timeout)
-{
- struct list_head *_p;
- rxrpc_timer_t *ptimer;
-
- _enter("%p,%lu", timer, timeout);
-
- spin_lock(&krxtimod_lock);
-
- list_del(&timer->link);
-
- /* the timer was deferred or reset - put it back in the queue at the
- * right place */
- timer->timo_jif = jiffies + timeout;
-
- list_for_each(_p, &krxtimod_list) {
- ptimer = list_entry(_p, rxrpc_timer_t, link);
- if (time_before(timer->timo_jif, ptimer->timo_jif))
- break;
- }
-
- list_add_tail(&timer->link, _p); /* insert before stopping point */
-
- spin_unlock(&krxtimod_lock);
-
- wake_up(&krxtimod_sleepq);
-
- _leave("");
-} /* end rxrpc_krxtimod_add_timer() */
-
-/*****************************************************************************/
-/*
- * dequeue a timer
- * - returns 0 if the timer was deleted or -ENOENT if it wasn't queued
- */
-int rxrpc_krxtimod_del_timer(rxrpc_timer_t *timer)
-{
- int ret = 0;
-
- _enter("%p", timer);
-
- spin_lock(&krxtimod_lock);
-
- if (list_empty(&timer->link))
- ret = -ENOENT;
- else
- list_del_init(&timer->link);
-
- spin_unlock(&krxtimod_lock);
-
- wake_up(&krxtimod_sleepq);
-
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_krxtimod_del_timer() */
+++ /dev/null
-/* main.c: Rx RPC interface
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/krxiod.h>
-#include <rxrpc/krxsecd.h>
-#include <rxrpc/krxtimod.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/message.h>
-#include "internal.h"
-
-MODULE_DESCRIPTION("Rx RPC implementation");
-MODULE_AUTHOR("Red Hat, Inc.");
-MODULE_LICENSE("GPL");
-
-__be32 rxrpc_epoch;
-
-/*****************************************************************************/
-/*
- * initialise the Rx module
- */
-static int __init rxrpc_initialise(void)
-{
- int ret;
-
- /* my epoch value */
- rxrpc_epoch = htonl(xtime.tv_sec);
-
- /* register the /proc interface */
-#ifdef CONFIG_PROC_FS
- ret = rxrpc_proc_init();
- if (ret<0)
- return ret;
-#endif
-
- /* register the sysctl files */
-#ifdef CONFIG_SYSCTL
- ret = rxrpc_sysctl_init();
- if (ret<0)
- goto error_proc;
-#endif
-
- /* start the krxtimod daemon */
- ret = rxrpc_krxtimod_start();
- if (ret<0)
- goto error_sysctl;
-
- /* start the krxiod daemon */
- ret = rxrpc_krxiod_init();
- if (ret<0)
- goto error_krxtimod;
-
- /* start the krxsecd daemon */
- ret = rxrpc_krxsecd_init();
- if (ret<0)
- goto error_krxiod;
-
- kdebug("\n\n");
-
- return 0;
-
- error_krxiod:
- rxrpc_krxiod_kill();
- error_krxtimod:
- rxrpc_krxtimod_kill();
- error_sysctl:
-#ifdef CONFIG_SYSCTL
- rxrpc_sysctl_cleanup();
- error_proc:
-#endif
-#ifdef CONFIG_PROC_FS
- rxrpc_proc_cleanup();
-#endif
- return ret;
-} /* end rxrpc_initialise() */
-
-module_init(rxrpc_initialise);
-
-/*****************************************************************************/
-/*
- * clean up the Rx module
- */
-static void __exit rxrpc_cleanup(void)
-{
- kenter("");
-
- __RXACCT(printk("Outstanding Messages : %d\n",
- atomic_read(&rxrpc_message_count)));
- __RXACCT(printk("Outstanding Calls : %d\n",
- atomic_read(&rxrpc_call_count)));
- __RXACCT(printk("Outstanding Connections: %d\n",
- atomic_read(&rxrpc_connection_count)));
- __RXACCT(printk("Outstanding Peers : %d\n",
- atomic_read(&rxrpc_peer_count)));
- __RXACCT(printk("Outstanding Transports : %d\n",
- atomic_read(&rxrpc_transport_count)));
-
- rxrpc_krxsecd_kill();
- rxrpc_krxiod_kill();
- rxrpc_krxtimod_kill();
-#ifdef CONFIG_SYSCTL
- rxrpc_sysctl_cleanup();
-#endif
-#ifdef CONFIG_PROC_FS
- rxrpc_proc_cleanup();
-#endif
-
- __RXACCT(printk("Outstanding Messages : %d\n",
- atomic_read(&rxrpc_message_count)));
- __RXACCT(printk("Outstanding Calls : %d\n",
- atomic_read(&rxrpc_call_count)));
- __RXACCT(printk("Outstanding Connections: %d\n",
- atomic_read(&rxrpc_connection_count)));
- __RXACCT(printk("Outstanding Peers : %d\n",
- atomic_read(&rxrpc_peer_count)));
- __RXACCT(printk("Outstanding Transports : %d\n",
- atomic_read(&rxrpc_transport_count)));
-
- kleave("");
-} /* end rxrpc_cleanup() */
-
-module_exit(rxrpc_cleanup);
-
-/*****************************************************************************/
-/*
- * clear the dead space between task_struct and kernel stack
- * - called by supplying -finstrument-functions to gcc
- */
-#if 0
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-__attribute__((no_instrument_function));
-
-void __cyg_profile_func_enter (void *this_fn, void *call_site)
-{
- asm volatile(" movl %%esp,%%edi \n"
- " andl %0,%%edi \n"
- " addl %1,%%edi \n"
- " movl %%esp,%%ecx \n"
- " subl %%edi,%%ecx \n"
- " shrl $2,%%ecx \n"
- " movl $0xedededed,%%eax \n"
- " rep stosl \n"
- :
- : "i"(~(THREAD_SIZE-1)), "i"(sizeof(struct thread_info))
- : "eax", "ecx", "edi", "memory", "cc"
- );
-}
-
-void __cyg_profile_func_exit(void *this_fn, void *call_site)
-__attribute__((no_instrument_function));
-
-void __cyg_profile_func_exit(void *this_fn, void *call_site)
-{
- asm volatile(" movl %%esp,%%edi \n"
- " andl %0,%%edi \n"
- " addl %1,%%edi \n"
- " movl %%esp,%%ecx \n"
- " subl %%edi,%%ecx \n"
- " shrl $2,%%ecx \n"
- " movl $0xdadadada,%%eax \n"
- " rep stosl \n"
- :
- : "i"(~(THREAD_SIZE-1)), "i"(sizeof(struct thread_info))
- : "eax", "ecx", "edi", "memory", "cc"
- );
-}
-#endif
+++ /dev/null
-/* peer.c: Rx RPC peer management
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/message.h>
-#include <linux/udp.h>
-#include <linux/ip.h>
-#include <net/sock.h>
-#include <asm/uaccess.h>
-#include <asm/div64.h>
-#include "internal.h"
-
-__RXACCT_DECL(atomic_t rxrpc_peer_count);
-LIST_HEAD(rxrpc_peers);
-DECLARE_RWSEM(rxrpc_peers_sem);
-unsigned long rxrpc_peer_timeout = 12 * 60 * 60;
-
-static void rxrpc_peer_do_timeout(struct rxrpc_peer *peer);
-
-static void __rxrpc_peer_timeout(rxrpc_timer_t *timer)
-{
- struct rxrpc_peer *peer =
- list_entry(timer, struct rxrpc_peer, timeout);
-
- _debug("Rx PEER TIMEOUT [%p{u=%d}]", peer, atomic_read(&peer->usage));
-
- rxrpc_peer_do_timeout(peer);
-}
-
-static const struct rxrpc_timer_ops rxrpc_peer_timer_ops = {
- .timed_out = __rxrpc_peer_timeout,
-};
-
-/*****************************************************************************/
-/*
- * create a peer record
- */
-static int __rxrpc_create_peer(struct rxrpc_transport *trans, __be32 addr,
- struct rxrpc_peer **_peer)
-{
- struct rxrpc_peer *peer;
-
- _enter("%p,%08x", trans, ntohl(addr));
-
- /* allocate and initialise a peer record */
- peer = kzalloc(sizeof(struct rxrpc_peer), GFP_KERNEL);
- if (!peer) {
- _leave(" = -ENOMEM");
- return -ENOMEM;
- }
-
- atomic_set(&peer->usage, 1);
-
- INIT_LIST_HEAD(&peer->link);
- INIT_LIST_HEAD(&peer->proc_link);
- INIT_LIST_HEAD(&peer->conn_idlist);
- INIT_LIST_HEAD(&peer->conn_active);
- INIT_LIST_HEAD(&peer->conn_graveyard);
- spin_lock_init(&peer->conn_gylock);
- init_waitqueue_head(&peer->conn_gy_waitq);
- rwlock_init(&peer->conn_idlock);
- rwlock_init(&peer->conn_lock);
- atomic_set(&peer->conn_count, 0);
- spin_lock_init(&peer->lock);
- rxrpc_timer_init(&peer->timeout, &rxrpc_peer_timer_ops);
-
- peer->addr.s_addr = addr;
-
- peer->trans = trans;
- peer->ops = trans->peer_ops;
-
- __RXACCT(atomic_inc(&rxrpc_peer_count));
- *_peer = peer;
- _leave(" = 0 (%p)", peer);
-
- return 0;
-} /* end __rxrpc_create_peer() */
-
-/*****************************************************************************/
-/*
- * find a peer record on the specified transport
- * - returns (if successful) with peer record usage incremented
- * - resurrects it from the graveyard if found there
- */
-int rxrpc_peer_lookup(struct rxrpc_transport *trans, __be32 addr,
- struct rxrpc_peer **_peer)
-{
- struct rxrpc_peer *peer, *candidate = NULL;
- struct list_head *_p;
- int ret;
-
- _enter("%p{%hu},%08x", trans, trans->port, ntohl(addr));
-
- /* [common case] search the transport's active list first */
- read_lock(&trans->peer_lock);
- list_for_each(_p, &trans->peer_active) {
- peer = list_entry(_p, struct rxrpc_peer, link);
- if (peer->addr.s_addr == addr)
- goto found_active;
- }
- read_unlock(&trans->peer_lock);
-
- /* [uncommon case] not active - create a candidate for a new record */
- ret = __rxrpc_create_peer(trans, addr, &candidate);
- if (ret < 0) {
- _leave(" = %d", ret);
- return ret;
- }
-
- /* search the active list again, just in case it appeared whilst we
- * were busy */
- write_lock(&trans->peer_lock);
- list_for_each(_p, &trans->peer_active) {
- peer = list_entry(_p, struct rxrpc_peer, link);
- if (peer->addr.s_addr == addr)
- goto found_active_second_chance;
- }
-
- /* search the transport's graveyard list */
- spin_lock(&trans->peer_gylock);
- list_for_each(_p, &trans->peer_graveyard) {
- peer = list_entry(_p, struct rxrpc_peer, link);
- if (peer->addr.s_addr == addr)
- goto found_in_graveyard;
- }
- spin_unlock(&trans->peer_gylock);
-
- /* we can now add the new candidate to the list
- * - tell the application layer that this peer has been added
- */
- rxrpc_get_transport(trans);
- peer = candidate;
- candidate = NULL;
-
- if (peer->ops && peer->ops->adding) {
- ret = peer->ops->adding(peer);
- if (ret < 0) {
- write_unlock(&trans->peer_lock);
- __RXACCT(atomic_dec(&rxrpc_peer_count));
- kfree(peer);
- rxrpc_put_transport(trans);
- _leave(" = %d", ret);
- return ret;
- }
- }
-
- atomic_inc(&trans->peer_count);
-
- make_active:
- list_add_tail(&peer->link, &trans->peer_active);
-
- success_uwfree:
- write_unlock(&trans->peer_lock);
-
- if (candidate) {
- __RXACCT(atomic_dec(&rxrpc_peer_count));
- kfree(candidate);
- }
-
- if (list_empty(&peer->proc_link)) {
- down_write(&rxrpc_peers_sem);
- list_add_tail(&peer->proc_link, &rxrpc_peers);
- up_write(&rxrpc_peers_sem);
- }
-
- success:
- *_peer = peer;
-
- _leave(" = 0 (%p{u=%d cc=%d})",
- peer,
- atomic_read(&peer->usage),
- atomic_read(&peer->conn_count));
- return 0;
-
- /* handle the peer being found in the active list straight off */
- found_active:
- rxrpc_get_peer(peer);
- read_unlock(&trans->peer_lock);
- goto success;
-
- /* handle resurrecting a peer from the graveyard */
- found_in_graveyard:
- rxrpc_get_peer(peer);
- rxrpc_get_transport(peer->trans);
- rxrpc_krxtimod_del_timer(&peer->timeout);
- list_del_init(&peer->link);
- spin_unlock(&trans->peer_gylock);
- goto make_active;
-
- /* handle finding the peer on the second time through the active
- * list */
- found_active_second_chance:
- rxrpc_get_peer(peer);
- goto success_uwfree;
-
-} /* end rxrpc_peer_lookup() */
-
-/*****************************************************************************/
-/*
- * finish with a peer record
- * - it gets sent to the graveyard from where it can be resurrected or timed
- * out
- */
-void rxrpc_put_peer(struct rxrpc_peer *peer)
-{
- struct rxrpc_transport *trans = peer->trans;
-
- _enter("%p{cc=%d a=%08x}",
- peer,
- atomic_read(&peer->conn_count),
- ntohl(peer->addr.s_addr));
-
- /* sanity check */
- if (atomic_read(&peer->usage) <= 0)
- BUG();
-
- write_lock(&trans->peer_lock);
- spin_lock(&trans->peer_gylock);
- if (likely(!atomic_dec_and_test(&peer->usage))) {
- spin_unlock(&trans->peer_gylock);
- write_unlock(&trans->peer_lock);
- _leave("");
- return;
- }
-
- /* move to graveyard queue */
- list_del(&peer->link);
- write_unlock(&trans->peer_lock);
-
- list_add_tail(&peer->link, &trans->peer_graveyard);
-
- BUG_ON(!list_empty(&peer->conn_active));
-
- rxrpc_krxtimod_add_timer(&peer->timeout, rxrpc_peer_timeout * HZ);
-
- spin_unlock(&trans->peer_gylock);
-
- rxrpc_put_transport(trans);
-
- _leave(" [killed]");
-} /* end rxrpc_put_peer() */
-
-/*****************************************************************************/
-/*
- * handle a peer timing out in the graveyard
- * - called from krxtimod
- */
-static void rxrpc_peer_do_timeout(struct rxrpc_peer *peer)
-{
- struct rxrpc_transport *trans = peer->trans;
-
- _enter("%p{u=%d cc=%d a=%08x}",
- peer,
- atomic_read(&peer->usage),
- atomic_read(&peer->conn_count),
- ntohl(peer->addr.s_addr));
-
- BUG_ON(atomic_read(&peer->usage) < 0);
-
- /* remove from graveyard if still dead */
- spin_lock(&trans->peer_gylock);
- if (atomic_read(&peer->usage) == 0)
- list_del_init(&peer->link);
- else
- peer = NULL;
- spin_unlock(&trans->peer_gylock);
-
- if (!peer) {
- _leave("");
- return; /* resurrected */
- }
-
- /* clear all connections on this peer */
- rxrpc_conn_clearall(peer);
-
- BUG_ON(!list_empty(&peer->conn_active));
- BUG_ON(!list_empty(&peer->conn_graveyard));
-
- /* inform the application layer */
- if (peer->ops && peer->ops->discarding)
- peer->ops->discarding(peer);
-
- if (!list_empty(&peer->proc_link)) {
- down_write(&rxrpc_peers_sem);
- list_del(&peer->proc_link);
- up_write(&rxrpc_peers_sem);
- }
-
- __RXACCT(atomic_dec(&rxrpc_peer_count));
- kfree(peer);
-
- /* if the graveyard is now empty, wake up anyone waiting for that */
- if (atomic_dec_and_test(&trans->peer_count))
- wake_up(&trans->peer_gy_waitq);
-
- _leave(" [destroyed]");
-} /* end rxrpc_peer_do_timeout() */
-
-/*****************************************************************************/
-/*
- * clear all peer records from a transport endpoint
- */
-void rxrpc_peer_clearall(struct rxrpc_transport *trans)
-{
- DECLARE_WAITQUEUE(myself,current);
-
- struct rxrpc_peer *peer;
- int err;
-
- _enter("%p",trans);
-
- /* there shouldn't be any active peers remaining */
- BUG_ON(!list_empty(&trans->peer_active));
-
- /* manually timeout all peers in the graveyard */
- spin_lock(&trans->peer_gylock);
- while (!list_empty(&trans->peer_graveyard)) {
- peer = list_entry(trans->peer_graveyard.next,
- struct rxrpc_peer, link);
- _debug("Clearing peer %p\n", peer);
- err = rxrpc_krxtimod_del_timer(&peer->timeout);
- spin_unlock(&trans->peer_gylock);
-
- if (err == 0)
- rxrpc_peer_do_timeout(peer);
-
- spin_lock(&trans->peer_gylock);
- }
- spin_unlock(&trans->peer_gylock);
-
- /* wait for the the peer graveyard to be completely cleared */
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&trans->peer_gy_waitq, &myself);
-
- while (atomic_read(&trans->peer_count) != 0) {
- schedule();
- set_current_state(TASK_UNINTERRUPTIBLE);
- }
-
- remove_wait_queue(&trans->peer_gy_waitq, &myself);
- set_current_state(TASK_RUNNING);
-
- _leave("");
-} /* end rxrpc_peer_clearall() */
-
-/*****************************************************************************/
-/*
- * calculate and cache the Round-Trip-Time for a message and its response
- */
-void rxrpc_peer_calculate_rtt(struct rxrpc_peer *peer,
- struct rxrpc_message *msg,
- struct rxrpc_message *resp)
-{
- unsigned long long rtt;
- int loop;
-
- _enter("%p,%p,%p", peer, msg, resp);
-
- /* calculate the latest RTT */
- rtt = resp->stamp.tv_sec - msg->stamp.tv_sec;
- rtt *= 1000000UL;
- rtt += resp->stamp.tv_usec - msg->stamp.tv_usec;
-
- /* add to cache */
- peer->rtt_cache[peer->rtt_point] = rtt;
- peer->rtt_point++;
- peer->rtt_point %= RXRPC_RTT_CACHE_SIZE;
-
- if (peer->rtt_usage < RXRPC_RTT_CACHE_SIZE)
- peer->rtt_usage++;
-
- /* recalculate RTT */
- rtt = 0;
- for (loop = peer->rtt_usage - 1; loop >= 0; loop--)
- rtt += peer->rtt_cache[loop];
-
- do_div(rtt, peer->rtt_usage);
- peer->rtt = rtt;
-
- _leave(" RTT=%lu.%lums",
- (long) (peer->rtt / 1000), (long) (peer->rtt % 1000));
-
-} /* end rxrpc_peer_calculate_rtt() */
+++ /dev/null
-/* proc.c: /proc interface for RxRPC
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <rxrpc/rxrpc.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/message.h>
-#include "internal.h"
-
-static struct proc_dir_entry *proc_rxrpc;
-
-static int rxrpc_proc_transports_open(struct inode *inode, struct file *file);
-static void *rxrpc_proc_transports_start(struct seq_file *p, loff_t *pos);
-static void *rxrpc_proc_transports_next(struct seq_file *p, void *v, loff_t *pos);
-static void rxrpc_proc_transports_stop(struct seq_file *p, void *v);
-static int rxrpc_proc_transports_show(struct seq_file *m, void *v);
-
-static struct seq_operations rxrpc_proc_transports_ops = {
- .start = rxrpc_proc_transports_start,
- .next = rxrpc_proc_transports_next,
- .stop = rxrpc_proc_transports_stop,
- .show = rxrpc_proc_transports_show,
-};
-
-static const struct file_operations rxrpc_proc_transports_fops = {
- .open = rxrpc_proc_transports_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int rxrpc_proc_peers_open(struct inode *inode, struct file *file);
-static void *rxrpc_proc_peers_start(struct seq_file *p, loff_t *pos);
-static void *rxrpc_proc_peers_next(struct seq_file *p, void *v, loff_t *pos);
-static void rxrpc_proc_peers_stop(struct seq_file *p, void *v);
-static int rxrpc_proc_peers_show(struct seq_file *m, void *v);
-
-static struct seq_operations rxrpc_proc_peers_ops = {
- .start = rxrpc_proc_peers_start,
- .next = rxrpc_proc_peers_next,
- .stop = rxrpc_proc_peers_stop,
- .show = rxrpc_proc_peers_show,
-};
-
-static const struct file_operations rxrpc_proc_peers_fops = {
- .open = rxrpc_proc_peers_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int rxrpc_proc_conns_open(struct inode *inode, struct file *file);
-static void *rxrpc_proc_conns_start(struct seq_file *p, loff_t *pos);
-static void *rxrpc_proc_conns_next(struct seq_file *p, void *v, loff_t *pos);
-static void rxrpc_proc_conns_stop(struct seq_file *p, void *v);
-static int rxrpc_proc_conns_show(struct seq_file *m, void *v);
-
-static struct seq_operations rxrpc_proc_conns_ops = {
- .start = rxrpc_proc_conns_start,
- .next = rxrpc_proc_conns_next,
- .stop = rxrpc_proc_conns_stop,
- .show = rxrpc_proc_conns_show,
-};
-
-static const struct file_operations rxrpc_proc_conns_fops = {
- .open = rxrpc_proc_conns_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int rxrpc_proc_calls_open(struct inode *inode, struct file *file);
-static void *rxrpc_proc_calls_start(struct seq_file *p, loff_t *pos);
-static void *rxrpc_proc_calls_next(struct seq_file *p, void *v, loff_t *pos);
-static void rxrpc_proc_calls_stop(struct seq_file *p, void *v);
-static int rxrpc_proc_calls_show(struct seq_file *m, void *v);
-
-static struct seq_operations rxrpc_proc_calls_ops = {
- .start = rxrpc_proc_calls_start,
- .next = rxrpc_proc_calls_next,
- .stop = rxrpc_proc_calls_stop,
- .show = rxrpc_proc_calls_show,
-};
-
-static const struct file_operations rxrpc_proc_calls_fops = {
- .open = rxrpc_proc_calls_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static const char *rxrpc_call_states7[] = {
- "complet",
- "error ",
- "rcv_op ",
- "rcv_arg",
- "got_arg",
- "snd_rpl",
- "fin_ack",
- "snd_arg",
- "rcv_rpl",
- "got_rpl"
-};
-
-static const char *rxrpc_call_error_states7[] = {
- "no_err ",
- "loc_abt",
- "rmt_abt",
- "loc_err",
- "rmt_err"
-};
-
-/*****************************************************************************/
-/*
- * initialise the /proc/net/rxrpc/ directory
- */
-int rxrpc_proc_init(void)
-{
- struct proc_dir_entry *p;
-
- proc_rxrpc = proc_mkdir("rxrpc", proc_net);
- if (!proc_rxrpc)
- goto error;
- proc_rxrpc->owner = THIS_MODULE;
-
- p = create_proc_entry("calls", 0, proc_rxrpc);
- if (!p)
- goto error_proc;
- p->proc_fops = &rxrpc_proc_calls_fops;
- p->owner = THIS_MODULE;
-
- p = create_proc_entry("connections", 0, proc_rxrpc);
- if (!p)
- goto error_calls;
- p->proc_fops = &rxrpc_proc_conns_fops;
- p->owner = THIS_MODULE;
-
- p = create_proc_entry("peers", 0, proc_rxrpc);
- if (!p)
- goto error_calls;
- p->proc_fops = &rxrpc_proc_peers_fops;
- p->owner = THIS_MODULE;
-
- p = create_proc_entry("transports", 0, proc_rxrpc);
- if (!p)
- goto error_conns;
- p->proc_fops = &rxrpc_proc_transports_fops;
- p->owner = THIS_MODULE;
-
- return 0;
-
- error_conns:
- remove_proc_entry("connections", proc_rxrpc);
- error_calls:
- remove_proc_entry("calls", proc_rxrpc);
- error_proc:
- remove_proc_entry("rxrpc", proc_net);
- error:
- return -ENOMEM;
-} /* end rxrpc_proc_init() */
-
-/*****************************************************************************/
-/*
- * clean up the /proc/net/rxrpc/ directory
- */
-void rxrpc_proc_cleanup(void)
-{
- remove_proc_entry("transports", proc_rxrpc);
- remove_proc_entry("peers", proc_rxrpc);
- remove_proc_entry("connections", proc_rxrpc);
- remove_proc_entry("calls", proc_rxrpc);
-
- remove_proc_entry("rxrpc", proc_net);
-
-} /* end rxrpc_proc_cleanup() */
-
-/*****************************************************************************/
-/*
- * open "/proc/net/rxrpc/transports" which provides a summary of extant transports
- */
-static int rxrpc_proc_transports_open(struct inode *inode, struct file *file)
-{
- struct seq_file *m;
- int ret;
-
- ret = seq_open(file, &rxrpc_proc_transports_ops);
- if (ret < 0)
- return ret;
-
- m = file->private_data;
- m->private = PDE(inode)->data;
-
- return 0;
-} /* end rxrpc_proc_transports_open() */
-
-/*****************************************************************************/
-/*
- * set up the iterator to start reading from the transports list and return the first item
- */
-static void *rxrpc_proc_transports_start(struct seq_file *m, loff_t *_pos)
-{
- struct list_head *_p;
- loff_t pos = *_pos;
-
- /* lock the list against modification */
- down_read(&rxrpc_proc_transports_sem);
-
- /* allow for the header line */
- if (!pos)
- return SEQ_START_TOKEN;
- pos--;
-
- /* find the n'th element in the list */
- list_for_each(_p, &rxrpc_proc_transports)
- if (!pos--)
- break;
-
- return _p != &rxrpc_proc_transports ? _p : NULL;
-} /* end rxrpc_proc_transports_start() */
-
-/*****************************************************************************/
-/*
- * move to next call in transports list
- */
-static void *rxrpc_proc_transports_next(struct seq_file *p, void *v, loff_t *pos)
-{
- struct list_head *_p;
-
- (*pos)++;
-
- _p = v;
- _p = (v == SEQ_START_TOKEN) ? rxrpc_proc_transports.next : _p->next;
-
- return _p != &rxrpc_proc_transports ? _p : NULL;
-} /* end rxrpc_proc_transports_next() */
-
-/*****************************************************************************/
-/*
- * clean up after reading from the transports list
- */
-static void rxrpc_proc_transports_stop(struct seq_file *p, void *v)
-{
- up_read(&rxrpc_proc_transports_sem);
-
-} /* end rxrpc_proc_transports_stop() */
-
-/*****************************************************************************/
-/*
- * display a header line followed by a load of call lines
- */
-static int rxrpc_proc_transports_show(struct seq_file *m, void *v)
-{
- struct rxrpc_transport *trans =
- list_entry(v, struct rxrpc_transport, proc_link);
-
- /* display header on line 1 */
- if (v == SEQ_START_TOKEN) {
- seq_puts(m, "LOCAL USE\n");
- return 0;
- }
-
- /* display one transport per line on subsequent lines */
- seq_printf(m, "%5hu %3d\n",
- trans->port,
- atomic_read(&trans->usage)
- );
-
- return 0;
-} /* end rxrpc_proc_transports_show() */
-
-/*****************************************************************************/
-/*
- * open "/proc/net/rxrpc/peers" which provides a summary of extant peers
- */
-static int rxrpc_proc_peers_open(struct inode *inode, struct file *file)
-{
- struct seq_file *m;
- int ret;
-
- ret = seq_open(file, &rxrpc_proc_peers_ops);
- if (ret < 0)
- return ret;
-
- m = file->private_data;
- m->private = PDE(inode)->data;
-
- return 0;
-} /* end rxrpc_proc_peers_open() */
-
-/*****************************************************************************/
-/*
- * set up the iterator to start reading from the peers list and return the
- * first item
- */
-static void *rxrpc_proc_peers_start(struct seq_file *m, loff_t *_pos)
-{
- struct list_head *_p;
- loff_t pos = *_pos;
-
- /* lock the list against modification */
- down_read(&rxrpc_peers_sem);
-
- /* allow for the header line */
- if (!pos)
- return SEQ_START_TOKEN;
- pos--;
-
- /* find the n'th element in the list */
- list_for_each(_p, &rxrpc_peers)
- if (!pos--)
- break;
-
- return _p != &rxrpc_peers ? _p : NULL;
-} /* end rxrpc_proc_peers_start() */
-
-/*****************************************************************************/
-/*
- * move to next conn in peers list
- */
-static void *rxrpc_proc_peers_next(struct seq_file *p, void *v, loff_t *pos)
-{
- struct list_head *_p;
-
- (*pos)++;
-
- _p = v;
- _p = (v == SEQ_START_TOKEN) ? rxrpc_peers.next : _p->next;
-
- return _p != &rxrpc_peers ? _p : NULL;
-} /* end rxrpc_proc_peers_next() */
-
-/*****************************************************************************/
-/*
- * clean up after reading from the peers list
- */
-static void rxrpc_proc_peers_stop(struct seq_file *p, void *v)
-{
- up_read(&rxrpc_peers_sem);
-
-} /* end rxrpc_proc_peers_stop() */
-
-/*****************************************************************************/
-/*
- * display a header line followed by a load of conn lines
- */
-static int rxrpc_proc_peers_show(struct seq_file *m, void *v)
-{
- struct rxrpc_peer *peer = list_entry(v, struct rxrpc_peer, proc_link);
- long timeout;
-
- /* display header on line 1 */
- if (v == SEQ_START_TOKEN) {
- seq_puts(m, "LOCAL REMOTE USAGE CONNS TIMEOUT"
- " MTU RTT(uS)\n");
- return 0;
- }
-
- /* display one peer per line on subsequent lines */
- timeout = 0;
- if (!list_empty(&peer->timeout.link))
- timeout = (long) peer->timeout.timo_jif -
- (long) jiffies;
-
- seq_printf(m, "%5hu %08x %5d %5d %8ld %5Zu %7lu\n",
- peer->trans->port,
- ntohl(peer->addr.s_addr),
- atomic_read(&peer->usage),
- atomic_read(&peer->conn_count),
- timeout,
- peer->if_mtu,
- (long) peer->rtt
- );
-
- return 0;
-} /* end rxrpc_proc_peers_show() */
-
-/*****************************************************************************/
-/*
- * open "/proc/net/rxrpc/connections" which provides a summary of extant
- * connections
- */
-static int rxrpc_proc_conns_open(struct inode *inode, struct file *file)
-{
- struct seq_file *m;
- int ret;
-
- ret = seq_open(file, &rxrpc_proc_conns_ops);
- if (ret < 0)
- return ret;
-
- m = file->private_data;
- m->private = PDE(inode)->data;
-
- return 0;
-} /* end rxrpc_proc_conns_open() */
-
-/*****************************************************************************/
-/*
- * set up the iterator to start reading from the conns list and return the
- * first item
- */
-static void *rxrpc_proc_conns_start(struct seq_file *m, loff_t *_pos)
-{
- struct list_head *_p;
- loff_t pos = *_pos;
-
- /* lock the list against modification */
- down_read(&rxrpc_conns_sem);
-
- /* allow for the header line */
- if (!pos)
- return SEQ_START_TOKEN;
- pos--;
-
- /* find the n'th element in the list */
- list_for_each(_p, &rxrpc_conns)
- if (!pos--)
- break;
-
- return _p != &rxrpc_conns ? _p : NULL;
-} /* end rxrpc_proc_conns_start() */
-
-/*****************************************************************************/
-/*
- * move to next conn in conns list
- */
-static void *rxrpc_proc_conns_next(struct seq_file *p, void *v, loff_t *pos)
-{
- struct list_head *_p;
-
- (*pos)++;
-
- _p = v;
- _p = (v == SEQ_START_TOKEN) ? rxrpc_conns.next : _p->next;
-
- return _p != &rxrpc_conns ? _p : NULL;
-} /* end rxrpc_proc_conns_next() */
-
-/*****************************************************************************/
-/*
- * clean up after reading from the conns list
- */
-static void rxrpc_proc_conns_stop(struct seq_file *p, void *v)
-{
- up_read(&rxrpc_conns_sem);
-
-} /* end rxrpc_proc_conns_stop() */
-
-/*****************************************************************************/
-/*
- * display a header line followed by a load of conn lines
- */
-static int rxrpc_proc_conns_show(struct seq_file *m, void *v)
-{
- struct rxrpc_connection *conn;
- long timeout;
-
- conn = list_entry(v, struct rxrpc_connection, proc_link);
-
- /* display header on line 1 */
- if (v == SEQ_START_TOKEN) {
- seq_puts(m,
- "LOCAL REMOTE RPORT SRVC CONN END SERIALNO "
- "CALLNO MTU TIMEOUT"
- "\n");
- return 0;
- }
-
- /* display one conn per line on subsequent lines */
- timeout = 0;
- if (!list_empty(&conn->timeout.link))
- timeout = (long) conn->timeout.timo_jif -
- (long) jiffies;
-
- seq_printf(m,
- "%5hu %08x %5hu %04hx %08x %-3.3s %08x %08x %5Zu %8ld\n",
- conn->trans->port,
- ntohl(conn->addr.sin_addr.s_addr),
- ntohs(conn->addr.sin_port),
- ntohs(conn->service_id),
- ntohl(conn->conn_id),
- conn->out_clientflag ? "CLT" : "SRV",
- conn->serial_counter,
- conn->call_counter,
- conn->mtu_size,
- timeout
- );
-
- return 0;
-} /* end rxrpc_proc_conns_show() */
-
-/*****************************************************************************/
-/*
- * open "/proc/net/rxrpc/calls" which provides a summary of extant calls
- */
-static int rxrpc_proc_calls_open(struct inode *inode, struct file *file)
-{
- struct seq_file *m;
- int ret;
-
- ret = seq_open(file, &rxrpc_proc_calls_ops);
- if (ret < 0)
- return ret;
-
- m = file->private_data;
- m->private = PDE(inode)->data;
-
- return 0;
-} /* end rxrpc_proc_calls_open() */
-
-/*****************************************************************************/
-/*
- * set up the iterator to start reading from the calls list and return the
- * first item
- */
-static void *rxrpc_proc_calls_start(struct seq_file *m, loff_t *_pos)
-{
- struct list_head *_p;
- loff_t pos = *_pos;
-
- /* lock the list against modification */
- down_read(&rxrpc_calls_sem);
-
- /* allow for the header line */
- if (!pos)
- return SEQ_START_TOKEN;
- pos--;
-
- /* find the n'th element in the list */
- list_for_each(_p, &rxrpc_calls)
- if (!pos--)
- break;
-
- return _p != &rxrpc_calls ? _p : NULL;
-} /* end rxrpc_proc_calls_start() */
-
-/*****************************************************************************/
-/*
- * move to next call in calls list
- */
-static void *rxrpc_proc_calls_next(struct seq_file *p, void *v, loff_t *pos)
-{
- struct list_head *_p;
-
- (*pos)++;
-
- _p = v;
- _p = (v == SEQ_START_TOKEN) ? rxrpc_calls.next : _p->next;
-
- return _p != &rxrpc_calls ? _p : NULL;
-} /* end rxrpc_proc_calls_next() */
-
-/*****************************************************************************/
-/*
- * clean up after reading from the calls list
- */
-static void rxrpc_proc_calls_stop(struct seq_file *p, void *v)
-{
- up_read(&rxrpc_calls_sem);
-
-} /* end rxrpc_proc_calls_stop() */
-
-/*****************************************************************************/
-/*
- * display a header line followed by a load of call lines
- */
-static int rxrpc_proc_calls_show(struct seq_file *m, void *v)
-{
- struct rxrpc_call *call = list_entry(v, struct rxrpc_call, call_link);
-
- /* display header on line 1 */
- if (v == SEQ_START_TOKEN) {
- seq_puts(m,
- "LOCAL REMOT SRVC CONN CALL DIR USE "
- " L STATE OPCODE ABORT ERRNO\n"
- );
- return 0;
- }
-
- /* display one call per line on subsequent lines */
- seq_printf(m,
- "%5hu %5hu %04hx %08x %08x %s %3u%c"
- " %c %-7.7s %6d %08x %5d\n",
- call->conn->trans->port,
- ntohs(call->conn->addr.sin_port),
- ntohs(call->conn->service_id),
- ntohl(call->conn->conn_id),
- ntohl(call->call_id),
- call->conn->service ? "SVC" : "CLT",
- atomic_read(&call->usage),
- waitqueue_active(&call->waitq) ? 'w' : ' ',
- call->app_last_rcv ? 'Y' : '-',
- (call->app_call_state!=RXRPC_CSTATE_ERROR ?
- rxrpc_call_states7[call->app_call_state] :
- rxrpc_call_error_states7[call->app_err_state]),
- call->app_opcode,
- call->app_abort_code,
- call->app_errno
- );
-
- return 0;
-} /* end rxrpc_proc_calls_show() */
--- /dev/null
+/* Kerberos-based RxRPC security
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/udp.h>
+#include <linux/crypto.h>
+#include <linux/scatterlist.h>
+#include <linux/ctype.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+#define RXKAD_VERSION 2
+#define MAXKRB5TICKETLEN 1024
+#define RXKAD_TKT_TYPE_KERBEROS_V5 256
+#define ANAME_SZ 40 /* size of authentication name */
+#define INST_SZ 40 /* size of principal's instance */
+#define REALM_SZ 40 /* size of principal's auth domain */
+#define SNAME_SZ 40 /* size of service name */
+
+unsigned rxrpc_debug;
+module_param_named(debug, rxrpc_debug, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(rxrpc_debug, "rxkad debugging mask");
+
+struct rxkad_level1_hdr {
+ __be32 data_size; /* true data size (excluding padding) */
+};
+
+struct rxkad_level2_hdr {
+ __be32 data_size; /* true data size (excluding padding) */
+ __be32 checksum; /* decrypted data checksum */
+};
+
+MODULE_DESCRIPTION("RxRPC network protocol type-2 security (Kerberos)");
+MODULE_AUTHOR("Red Hat, Inc.");
+MODULE_LICENSE("GPL");
+
+/*
+ * this holds a pinned cipher so that keventd doesn't get called by the cipher
+ * alloc routine, but since we have it to hand, we use it to decrypt RESPONSE
+ * packets
+ */
+static struct crypto_blkcipher *rxkad_ci;
+static DEFINE_MUTEX(rxkad_ci_mutex);
+
+/*
+ * initialise connection security
+ */
+static int rxkad_init_connection_security(struct rxrpc_connection *conn)
+{
+ struct rxrpc_key_payload *payload;
+ struct crypto_blkcipher *ci;
+ int ret;
+
+ _enter("{%d},{%x}", conn->debug_id, key_serial(conn->key));
+
+ payload = conn->key->payload.data;
+ conn->security_ix = payload->k.security_index;
+
+ ci = crypto_alloc_blkcipher("pcbc(fcrypt)", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(ci)) {
+ _debug("no cipher");
+ ret = PTR_ERR(ci);
+ goto error;
+ }
+
+ if (crypto_blkcipher_setkey(ci, payload->k.session_key,
+ sizeof(payload->k.session_key)) < 0)
+ BUG();
+
+ switch (conn->security_level) {
+ case RXRPC_SECURITY_PLAIN:
+ break;
+ case RXRPC_SECURITY_AUTH:
+ conn->size_align = 8;
+ conn->security_size = sizeof(struct rxkad_level1_hdr);
+ conn->header_size += sizeof(struct rxkad_level1_hdr);
+ break;
+ case RXRPC_SECURITY_ENCRYPT:
+ conn->size_align = 8;
+ conn->security_size = sizeof(struct rxkad_level2_hdr);
+ conn->header_size += sizeof(struct rxkad_level2_hdr);
+ break;
+ default:
+ ret = -EKEYREJECTED;
+ goto error;
+ }
+
+ conn->cipher = ci;
+ ret = 0;
+error:
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * prime the encryption state with the invariant parts of a connection's
+ * description
+ */
+static void rxkad_prime_packet_security(struct rxrpc_connection *conn)
+{
+ struct rxrpc_key_payload *payload;
+ struct blkcipher_desc desc;
+ struct scatterlist sg[2];
+ struct rxrpc_crypt iv;
+ struct {
+ __be32 x[4];
+ } tmpbuf __attribute__((aligned(16))); /* must all be in same page */
+
+ _enter("");
+
+ if (!conn->key)
+ return;
+
+ payload = conn->key->payload.data;
+ memcpy(&iv, payload->k.session_key, sizeof(iv));
+
+ desc.tfm = conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ tmpbuf.x[0] = conn->epoch;
+ tmpbuf.x[1] = conn->cid;
+ tmpbuf.x[2] = 0;
+ tmpbuf.x[3] = htonl(conn->security_ix);
+
+ memset(sg, 0, sizeof(sg));
+ sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
+ sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
+ crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+ memcpy(&conn->csum_iv, &tmpbuf.x[2], sizeof(conn->csum_iv));
+ ASSERTCMP(conn->csum_iv.n[0], ==, tmpbuf.x[2]);
+
+ _leave("");
+}
+
+/*
+ * partially encrypt a packet (level 1 security)
+ */
+static int rxkad_secure_packet_auth(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ u32 data_size,
+ void *sechdr)
+{
+ struct rxrpc_skb_priv *sp;
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv;
+ struct scatterlist sg[2];
+ struct {
+ struct rxkad_level1_hdr hdr;
+ __be32 first; /* first four bytes of data and padding */
+ } tmpbuf __attribute__((aligned(8))); /* must all be in same page */
+ u16 check;
+
+ sp = rxrpc_skb(skb);
+
+ _enter("");
+
+ check = ntohl(sp->hdr.seq ^ sp->hdr.callNumber);
+ data_size |= (u32) check << 16;
+
+ tmpbuf.hdr.data_size = htonl(data_size);
+ memcpy(&tmpbuf.first, sechdr + 4, sizeof(tmpbuf.first));
+
+ /* start the encryption afresh */
+ memset(&iv, 0, sizeof(iv));
+ desc.tfm = call->conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ memset(sg, 0, sizeof(sg));
+ sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
+ sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
+ crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+ memcpy(sechdr, &tmpbuf, sizeof(tmpbuf));
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * wholly encrypt a packet (level 2 security)
+ */
+static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ u32 data_size,
+ void *sechdr)
+{
+ const struct rxrpc_key_payload *payload;
+ struct rxkad_level2_hdr rxkhdr
+ __attribute__((aligned(8))); /* must be all on one page */
+ struct rxrpc_skb_priv *sp;
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv;
+ struct scatterlist sg[16];
+ struct sk_buff *trailer;
+ unsigned len;
+ u16 check;
+ int nsg;
+
+ sp = rxrpc_skb(skb);
+
+ _enter("");
+
+ check = ntohl(sp->hdr.seq ^ sp->hdr.callNumber);
+
+ rxkhdr.data_size = htonl(data_size | (u32) check << 16);
+ rxkhdr.checksum = 0;
+
+ /* encrypt from the session key */
+ payload = call->conn->key->payload.data;
+ memcpy(&iv, payload->k.session_key, sizeof(iv));
+ desc.tfm = call->conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ memset(sg, 0, sizeof(sg[0]) * 2);
+ sg_set_buf(&sg[0], sechdr, sizeof(rxkhdr));
+ sg_set_buf(&sg[1], &rxkhdr, sizeof(rxkhdr));
+ crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(rxkhdr));
+
+ /* we want to encrypt the skbuff in-place */
+ nsg = skb_cow_data(skb, 0, &trailer);
+ if (nsg < 0 || nsg > 16)
+ return -ENOMEM;
+
+ len = data_size + call->conn->size_align - 1;
+ len &= ~(call->conn->size_align - 1);
+
+ skb_to_sgvec(skb, sg, 0, len);
+ crypto_blkcipher_encrypt_iv(&desc, sg, sg, len);
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * checksum an RxRPC packet header
+ */
+static int rxkad_secure_packet(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ size_t data_size,
+ void *sechdr)
+{
+ struct rxrpc_skb_priv *sp;
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv;
+ struct scatterlist sg[2];
+ struct {
+ __be32 x[2];
+ } tmpbuf __attribute__((aligned(8))); /* must all be in same page */
+ __be32 x;
+ int ret;
+
+ sp = rxrpc_skb(skb);
+
+ _enter("{%d{%x}},{#%u},%zu,",
+ call->debug_id, key_serial(call->conn->key), ntohl(sp->hdr.seq),
+ data_size);
+
+ if (!call->conn->cipher)
+ return 0;
+
+ ret = key_validate(call->conn->key);
+ if (ret < 0)
+ return ret;
+
+ /* continue encrypting from where we left off */
+ memcpy(&iv, call->conn->csum_iv.x, sizeof(iv));
+ desc.tfm = call->conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ /* calculate the security checksum */
+ x = htonl(call->channel << (32 - RXRPC_CIDSHIFT));
+ x |= sp->hdr.seq & __constant_cpu_to_be32(0x3fffffff);
+ tmpbuf.x[0] = sp->hdr.callNumber;
+ tmpbuf.x[1] = x;
+
+ memset(&sg, 0, sizeof(sg));
+ sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
+ sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
+ crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+ x = ntohl(tmpbuf.x[1]);
+ x = (x >> 16) & 0xffff;
+ if (x == 0)
+ x = 1; /* zero checksums are not permitted */
+ sp->hdr.cksum = htons(x);
+
+ switch (call->conn->security_level) {
+ case RXRPC_SECURITY_PLAIN:
+ ret = 0;
+ break;
+ case RXRPC_SECURITY_AUTH:
+ ret = rxkad_secure_packet_auth(call, skb, data_size, sechdr);
+ break;
+ case RXRPC_SECURITY_ENCRYPT:
+ ret = rxkad_secure_packet_encrypt(call, skb, data_size,
+ sechdr);
+ break;
+ default:
+ ret = -EPERM;
+ break;
+ }
+
+ _leave(" = %d [set %hx]", ret, x);
+ return ret;
+}
+
+/*
+ * decrypt partial encryption on a packet (level 1 security)
+ */
+static int rxkad_verify_packet_auth(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ struct rxkad_level1_hdr sechdr;
+ struct rxrpc_skb_priv *sp;
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv;
+ struct scatterlist sg[2];
+ struct sk_buff *trailer;
+ u32 data_size, buf;
+ u16 check;
+
+ _enter("");
+
+ sp = rxrpc_skb(skb);
+
+ /* we want to decrypt the skbuff in-place */
+ if (skb_cow_data(skb, 0, &trailer) < 0)
+ goto nomem;
+
+ skb_to_sgvec(skb, sg, 0, 8);
+
+ /* start the decryption afresh */
+ memset(&iv, 0, sizeof(iv));
+ desc.tfm = call->conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ crypto_blkcipher_decrypt_iv(&desc, sg, sg, 8);
+
+ /* remove the decrypted packet length */
+ if (skb_copy_bits(skb, 0, &sechdr, sizeof(sechdr)) < 0)
+ goto datalen_error;
+ if (!skb_pull(skb, sizeof(sechdr)))
+ BUG();
+
+ buf = ntohl(sechdr.data_size);
+ data_size = buf & 0xffff;
+
+ check = buf >> 16;
+ check ^= ntohl(sp->hdr.seq ^ sp->hdr.callNumber);
+ check &= 0xffff;
+ if (check != 0) {
+ *_abort_code = RXKADSEALEDINCON;
+ goto protocol_error;
+ }
+
+ /* shorten the packet to remove the padding */
+ if (data_size > skb->len)
+ goto datalen_error;
+ else if (data_size < skb->len)
+ skb->len = data_size;
+
+ _leave(" = 0 [dlen=%x]", data_size);
+ return 0;
+
+datalen_error:
+ *_abort_code = RXKADDATALEN;
+protocol_error:
+ _leave(" = -EPROTO");
+ return -EPROTO;
+
+nomem:
+ _leave(" = -ENOMEM");
+ return -ENOMEM;
+}
+
+/*
+ * wholly decrypt a packet (level 2 security)
+ */
+static int rxkad_verify_packet_encrypt(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ const struct rxrpc_key_payload *payload;
+ struct rxkad_level2_hdr sechdr;
+ struct rxrpc_skb_priv *sp;
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv;
+ struct scatterlist _sg[4], *sg;
+ struct sk_buff *trailer;
+ u32 data_size, buf;
+ u16 check;
+ int nsg;
+
+ _enter(",{%d}", skb->len);
+
+ sp = rxrpc_skb(skb);
+
+ /* we want to decrypt the skbuff in-place */
+ nsg = skb_cow_data(skb, 0, &trailer);
+ if (nsg < 0)
+ goto nomem;
+
+ sg = _sg;
+ if (unlikely(nsg > 4)) {
+ sg = kmalloc(sizeof(*sg) * nsg, GFP_NOIO);
+ if (!sg)
+ goto nomem;
+ }
+
+ skb_to_sgvec(skb, sg, 0, skb->len);
+
+ /* decrypt from the session key */
+ payload = call->conn->key->payload.data;
+ memcpy(&iv, payload->k.session_key, sizeof(iv));
+ desc.tfm = call->conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ crypto_blkcipher_decrypt_iv(&desc, sg, sg, skb->len);
+ if (sg != _sg)
+ kfree(sg);
+
+ /* remove the decrypted packet length */
+ if (skb_copy_bits(skb, 0, &sechdr, sizeof(sechdr)) < 0)
+ goto datalen_error;
+ if (!skb_pull(skb, sizeof(sechdr)))
+ BUG();
+
+ buf = ntohl(sechdr.data_size);
+ data_size = buf & 0xffff;
+
+ check = buf >> 16;
+ check ^= ntohl(sp->hdr.seq ^ sp->hdr.callNumber);
+ check &= 0xffff;
+ if (check != 0) {
+ *_abort_code = RXKADSEALEDINCON;
+ goto protocol_error;
+ }
+
+ /* shorten the packet to remove the padding */
+ if (data_size > skb->len)
+ goto datalen_error;
+ else if (data_size < skb->len)
+ skb->len = data_size;
+
+ _leave(" = 0 [dlen=%x]", data_size);
+ return 0;
+
+datalen_error:
+ *_abort_code = RXKADDATALEN;
+protocol_error:
+ _leave(" = -EPROTO");
+ return -EPROTO;
+
+nomem:
+ _leave(" = -ENOMEM");
+ return -ENOMEM;
+}
+
+/*
+ * verify the security on a received packet
+ */
+static int rxkad_verify_packet(const struct rxrpc_call *call,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ struct blkcipher_desc desc;
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_crypt iv;
+ struct scatterlist sg[2];
+ struct {
+ __be32 x[2];
+ } tmpbuf __attribute__((aligned(8))); /* must all be in same page */
+ __be32 x;
+ __be16 cksum;
+ int ret;
+
+ sp = rxrpc_skb(skb);
+
+ _enter("{%d{%x}},{#%u}",
+ call->debug_id, key_serial(call->conn->key),
+ ntohl(sp->hdr.seq));
+
+ if (!call->conn->cipher)
+ return 0;
+
+ if (sp->hdr.securityIndex != 2) {
+ *_abort_code = RXKADINCONSISTENCY;
+ _leave(" = -EPROTO [not rxkad]");
+ return -EPROTO;
+ }
+
+ /* continue encrypting from where we left off */
+ memcpy(&iv, call->conn->csum_iv.x, sizeof(iv));
+ desc.tfm = call->conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ /* validate the security checksum */
+ x = htonl(call->channel << (32 - RXRPC_CIDSHIFT));
+ x |= sp->hdr.seq & __constant_cpu_to_be32(0x3fffffff);
+ tmpbuf.x[0] = call->call_id;
+ tmpbuf.x[1] = x;
+
+ memset(&sg, 0, sizeof(sg));
+ sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
+ sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
+ crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
+
+ x = ntohl(tmpbuf.x[1]);
+ x = (x >> 16) & 0xffff;
+ if (x == 0)
+ x = 1; /* zero checksums are not permitted */
+
+ cksum = htons(x);
+ if (sp->hdr.cksum != cksum) {
+ *_abort_code = RXKADSEALEDINCON;
+ _leave(" = -EPROTO [csum failed]");
+ return -EPROTO;
+ }
+
+ switch (call->conn->security_level) {
+ case RXRPC_SECURITY_PLAIN:
+ ret = 0;
+ break;
+ case RXRPC_SECURITY_AUTH:
+ ret = rxkad_verify_packet_auth(call, skb, _abort_code);
+ break;
+ case RXRPC_SECURITY_ENCRYPT:
+ ret = rxkad_verify_packet_encrypt(call, skb, _abort_code);
+ break;
+ default:
+ ret = -ENOANO;
+ break;
+ }
+
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * issue a challenge
+ */
+static int rxkad_issue_challenge(struct rxrpc_connection *conn)
+{
+ struct rxkad_challenge challenge;
+ struct rxrpc_header hdr;
+ struct msghdr msg;
+ struct kvec iov[2];
+ size_t len;
+ int ret;
+
+ _enter("{%d,%x}", conn->debug_id, key_serial(conn->key));
+
+ ret = key_validate(conn->key);
+ if (ret < 0)
+ return ret;
+
+ get_random_bytes(&conn->security_nonce, sizeof(conn->security_nonce));
+
+ challenge.version = htonl(2);
+ challenge.nonce = htonl(conn->security_nonce);
+ challenge.min_level = htonl(0);
+ challenge.__padding = 0;
+
+ msg.msg_name = &conn->trans->peer->srx.transport.sin;
+ msg.msg_namelen = sizeof(conn->trans->peer->srx.transport.sin);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ hdr.epoch = conn->epoch;
+ hdr.cid = conn->cid;
+ hdr.callNumber = 0;
+ hdr.seq = 0;
+ hdr.type = RXRPC_PACKET_TYPE_CHALLENGE;
+ hdr.flags = conn->out_clientflag;
+ hdr.userStatus = 0;
+ hdr.securityIndex = conn->security_ix;
+ hdr._rsvd = 0;
+ hdr.serviceId = conn->service_id;
+
+ iov[0].iov_base = &hdr;
+ iov[0].iov_len = sizeof(hdr);
+ iov[1].iov_base = &challenge;
+ iov[1].iov_len = sizeof(challenge);
+
+ len = iov[0].iov_len + iov[1].iov_len;
+
+ hdr.serial = htonl(atomic_inc_return(&conn->serial));
+ _proto("Tx CHALLENGE %%%u", ntohl(hdr.serial));
+
+ ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
+ if (ret < 0) {
+ _debug("sendmsg failed: %d", ret);
+ return -EAGAIN;
+ }
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * send a Kerberos security response
+ */
+static int rxkad_send_response(struct rxrpc_connection *conn,
+ struct rxrpc_header *hdr,
+ struct rxkad_response *resp,
+ const struct rxkad_key *s2)
+{
+ struct msghdr msg;
+ struct kvec iov[3];
+ size_t len;
+ int ret;
+
+ _enter("");
+
+ msg.msg_name = &conn->trans->peer->srx.transport.sin;
+ msg.msg_namelen = sizeof(conn->trans->peer->srx.transport.sin);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_flags = 0;
+
+ hdr->epoch = conn->epoch;
+ hdr->seq = 0;
+ hdr->type = RXRPC_PACKET_TYPE_RESPONSE;
+ hdr->flags = conn->out_clientflag;
+ hdr->userStatus = 0;
+ hdr->_rsvd = 0;
+
+ iov[0].iov_base = hdr;
+ iov[0].iov_len = sizeof(*hdr);
+ iov[1].iov_base = resp;
+ iov[1].iov_len = sizeof(*resp);
+ iov[2].iov_base = (void *) s2->ticket;
+ iov[2].iov_len = s2->ticket_len;
+
+ len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len;
+
+ hdr->serial = htonl(atomic_inc_return(&conn->serial));
+ _proto("Tx RESPONSE %%%u", ntohl(hdr->serial));
+
+ ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len);
+ if (ret < 0) {
+ _debug("sendmsg failed: %d", ret);
+ return -EAGAIN;
+ }
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * calculate the response checksum
+ */
+static void rxkad_calc_response_checksum(struct rxkad_response *response)
+{
+ u32 csum = 1000003;
+ int loop;
+ u8 *p = (u8 *) response;
+
+ for (loop = sizeof(*response); loop > 0; loop--)
+ csum = csum * 0x10204081 + *p++;
+
+ response->encrypted.checksum = htonl(csum);
+}
+
+/*
+ * load a scatterlist with a potentially split-page buffer
+ */
+static void rxkad_sg_set_buf2(struct scatterlist sg[2],
+ void *buf, size_t buflen)
+{
+
+ memset(sg, 0, sizeof(sg));
+
+ sg_set_buf(&sg[0], buf, buflen);
+ if (sg[0].offset + buflen > PAGE_SIZE) {
+ /* the buffer was split over two pages */
+ sg[0].length = PAGE_SIZE - sg[0].offset;
+ sg_set_buf(&sg[1], buf + sg[0].length, buflen - sg[0].length);
+ }
+
+ ASSERTCMP(sg[0].length + sg[1].length, ==, buflen);
+}
+
+/*
+ * encrypt the response packet
+ */
+static void rxkad_encrypt_response(struct rxrpc_connection *conn,
+ struct rxkad_response *resp,
+ const struct rxkad_key *s2)
+{
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv;
+ struct scatterlist ssg[2], dsg[2];
+
+ /* continue encrypting from where we left off */
+ memcpy(&iv, s2->session_key, sizeof(iv));
+ desc.tfm = conn->cipher;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ rxkad_sg_set_buf2(ssg, &resp->encrypted, sizeof(resp->encrypted));
+ memcpy(dsg, ssg, sizeof(dsg));
+ crypto_blkcipher_encrypt_iv(&desc, dsg, ssg, sizeof(resp->encrypted));
+}
+
+/*
+ * respond to a challenge packet
+ */
+static int rxkad_respond_to_challenge(struct rxrpc_connection *conn,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ const struct rxrpc_key_payload *payload;
+ struct rxkad_challenge challenge;
+ struct rxkad_response resp
+ __attribute__((aligned(8))); /* must be aligned for crypto */
+ struct rxrpc_skb_priv *sp;
+ u32 version, nonce, min_level, abort_code;
+ int ret;
+
+ _enter("{%d,%x}", conn->debug_id, key_serial(conn->key));
+
+ if (!conn->key) {
+ _leave(" = -EPROTO [no key]");
+ return -EPROTO;
+ }
+
+ ret = key_validate(conn->key);
+ if (ret < 0) {
+ *_abort_code = RXKADEXPIRED;
+ return ret;
+ }
+
+ abort_code = RXKADPACKETSHORT;
+ sp = rxrpc_skb(skb);
+ if (skb_copy_bits(skb, 0, &challenge, sizeof(challenge)) < 0)
+ goto protocol_error;
+
+ version = ntohl(challenge.version);
+ nonce = ntohl(challenge.nonce);
+ min_level = ntohl(challenge.min_level);
+
+ _proto("Rx CHALLENGE %%%u { v=%u n=%u ml=%u }",
+ ntohl(sp->hdr.serial), version, nonce, min_level);
+
+ abort_code = RXKADINCONSISTENCY;
+ if (version != RXKAD_VERSION)
+ goto protocol_error;
+
+ abort_code = RXKADLEVELFAIL;
+ if (conn->security_level < min_level)
+ goto protocol_error;
+
+ payload = conn->key->payload.data;
+
+ /* build the response packet */
+ memset(&resp, 0, sizeof(resp));
+
+ resp.version = RXKAD_VERSION;
+ resp.encrypted.epoch = conn->epoch;
+ resp.encrypted.cid = conn->cid;
+ resp.encrypted.securityIndex = htonl(conn->security_ix);
+ resp.encrypted.call_id[0] =
+ (conn->channels[0] ? conn->channels[0]->call_id : 0);
+ resp.encrypted.call_id[1] =
+ (conn->channels[1] ? conn->channels[1]->call_id : 0);
+ resp.encrypted.call_id[2] =
+ (conn->channels[2] ? conn->channels[2]->call_id : 0);
+ resp.encrypted.call_id[3] =
+ (conn->channels[3] ? conn->channels[3]->call_id : 0);
+ resp.encrypted.inc_nonce = htonl(nonce + 1);
+ resp.encrypted.level = htonl(conn->security_level);
+ resp.kvno = htonl(payload->k.kvno);
+ resp.ticket_len = htonl(payload->k.ticket_len);
+
+ /* calculate the response checksum and then do the encryption */
+ rxkad_calc_response_checksum(&resp);
+ rxkad_encrypt_response(conn, &resp, &payload->k);
+ return rxkad_send_response(conn, &sp->hdr, &resp, &payload->k);
+
+protocol_error:
+ *_abort_code = abort_code;
+ _leave(" = -EPROTO [%d]", abort_code);
+ return -EPROTO;
+}
+
+/*
+ * decrypt the kerberos IV ticket in the response
+ */
+static int rxkad_decrypt_ticket(struct rxrpc_connection *conn,
+ void *ticket, size_t ticket_len,
+ struct rxrpc_crypt *_session_key,
+ time_t *_expiry,
+ u32 *_abort_code)
+{
+ struct blkcipher_desc desc;
+ struct rxrpc_crypt iv, key;
+ struct scatterlist ssg[1], dsg[1];
+ struct in_addr addr;
+ unsigned life;
+ time_t issue, now;
+ bool little_endian;
+ int ret;
+ u8 *p, *q, *name, *end;
+
+ _enter("{%d},{%x}", conn->debug_id, key_serial(conn->server_key));
+
+ *_expiry = 0;
+
+ ret = key_validate(conn->server_key);
+ if (ret < 0) {
+ switch (ret) {
+ case -EKEYEXPIRED:
+ *_abort_code = RXKADEXPIRED;
+ goto error;
+ default:
+ *_abort_code = RXKADNOAUTH;
+ goto error;
+ }
+ }
+
+ ASSERT(conn->server_key->payload.data != NULL);
+ ASSERTCMP((unsigned long) ticket & 7UL, ==, 0);
+
+ memcpy(&iv, &conn->server_key->type_data, sizeof(iv));
+
+ desc.tfm = conn->server_key->payload.data;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ sg_init_one(&ssg[0], ticket, ticket_len);
+ memcpy(dsg, ssg, sizeof(dsg));
+ crypto_blkcipher_decrypt_iv(&desc, dsg, ssg, ticket_len);
+
+ p = ticket;
+ end = p + ticket_len;
+
+#define Z(size) \
+ ({ \
+ u8 *__str = p; \
+ q = memchr(p, 0, end - p); \
+ if (!q || q - p > (size)) \
+ goto bad_ticket; \
+ for (; p < q; p++) \
+ if (!isprint(*p)) \
+ goto bad_ticket; \
+ p++; \
+ __str; \
+ })
+
+ /* extract the ticket flags */
+ _debug("KIV FLAGS: %x", *p);
+ little_endian = *p & 1;
+ p++;
+
+ /* extract the authentication name */
+ name = Z(ANAME_SZ);
+ _debug("KIV ANAME: %s", name);
+
+ /* extract the principal's instance */
+ name = Z(INST_SZ);
+ _debug("KIV INST : %s", name);
+
+ /* extract the principal's authentication domain */
+ name = Z(REALM_SZ);
+ _debug("KIV REALM: %s", name);
+
+ if (end - p < 4 + 8 + 4 + 2)
+ goto bad_ticket;
+
+ /* get the IPv4 address of the entity that requested the ticket */
+ memcpy(&addr, p, sizeof(addr));
+ p += 4;
+ _debug("KIV ADDR : "NIPQUAD_FMT, NIPQUAD(addr));
+
+ /* get the session key from the ticket */
+ memcpy(&key, p, sizeof(key));
+ p += 8;
+ _debug("KIV KEY : %08x %08x", ntohl(key.n[0]), ntohl(key.n[1]));
+ memcpy(_session_key, &key, sizeof(key));
+
+ /* get the ticket's lifetime */
+ life = *p++ * 5 * 60;
+ _debug("KIV LIFE : %u", life);
+
+ /* get the issue time of the ticket */
+ if (little_endian) {
+ __le32 stamp;
+ memcpy(&stamp, p, 4);
+ issue = le32_to_cpu(stamp);
+ } else {
+ __be32 stamp;
+ memcpy(&stamp, p, 4);
+ issue = be32_to_cpu(stamp);
+ }
+ p += 4;
+ now = xtime.tv_sec;
+ _debug("KIV ISSUE: %lx [%lx]", issue, now);
+
+ /* check the ticket is in date */
+ if (issue > now) {
+ *_abort_code = RXKADNOAUTH;
+ ret = -EKEYREJECTED;
+ goto error;
+ }
+
+ if (issue < now - life) {
+ *_abort_code = RXKADEXPIRED;
+ ret = -EKEYEXPIRED;
+ goto error;
+ }
+
+ *_expiry = issue + life;
+
+ /* get the service name */
+ name = Z(SNAME_SZ);
+ _debug("KIV SNAME: %s", name);
+
+ /* get the service instance name */
+ name = Z(INST_SZ);
+ _debug("KIV SINST: %s", name);
+
+ ret = 0;
+error:
+ _leave(" = %d", ret);
+ return ret;
+
+bad_ticket:
+ *_abort_code = RXKADBADTICKET;
+ ret = -EBADMSG;
+ goto error;
+}
+
+/*
+ * decrypt the response packet
+ */
+static void rxkad_decrypt_response(struct rxrpc_connection *conn,
+ struct rxkad_response *resp,
+ const struct rxrpc_crypt *session_key)
+{
+ struct blkcipher_desc desc;
+ struct scatterlist ssg[2], dsg[2];
+ struct rxrpc_crypt iv;
+
+ _enter(",,%08x%08x",
+ ntohl(session_key->n[0]), ntohl(session_key->n[1]));
+
+ ASSERT(rxkad_ci != NULL);
+
+ mutex_lock(&rxkad_ci_mutex);
+ if (crypto_blkcipher_setkey(rxkad_ci, session_key->x,
+ sizeof(*session_key)) < 0)
+ BUG();
+
+ memcpy(&iv, session_key, sizeof(iv));
+ desc.tfm = rxkad_ci;
+ desc.info = iv.x;
+ desc.flags = 0;
+
+ rxkad_sg_set_buf2(ssg, &resp->encrypted, sizeof(resp->encrypted));
+ memcpy(dsg, ssg, sizeof(dsg));
+ crypto_blkcipher_decrypt_iv(&desc, dsg, ssg, sizeof(resp->encrypted));
+ mutex_unlock(&rxkad_ci_mutex);
+
+ _leave("");
+}
+
+/*
+ * verify a response
+ */
+static int rxkad_verify_response(struct rxrpc_connection *conn,
+ struct sk_buff *skb,
+ u32 *_abort_code)
+{
+ struct rxkad_response response
+ __attribute__((aligned(8))); /* must be aligned for crypto */
+ struct rxrpc_skb_priv *sp;
+ struct rxrpc_crypt session_key;
+ time_t expiry;
+ void *ticket;
+ u32 abort_code, version, kvno, ticket_len, csum, level;
+ int ret;
+
+ _enter("{%d,%x}", conn->debug_id, key_serial(conn->server_key));
+
+ abort_code = RXKADPACKETSHORT;
+ if (skb_copy_bits(skb, 0, &response, sizeof(response)) < 0)
+ goto protocol_error;
+ if (!pskb_pull(skb, sizeof(response)))
+ BUG();
+
+ version = ntohl(response.version);
+ ticket_len = ntohl(response.ticket_len);
+ kvno = ntohl(response.kvno);
+ sp = rxrpc_skb(skb);
+ _proto("Rx RESPONSE %%%u { v=%u kv=%u tl=%u }",
+ ntohl(sp->hdr.serial), version, kvno, ticket_len);
+
+ abort_code = RXKADINCONSISTENCY;
+ if (version != RXKAD_VERSION)
+
+ abort_code = RXKADTICKETLEN;
+ if (ticket_len < 4 || ticket_len > MAXKRB5TICKETLEN)
+ goto protocol_error;
+
+ abort_code = RXKADUNKNOWNKEY;
+ if (kvno >= RXKAD_TKT_TYPE_KERBEROS_V5)
+ goto protocol_error;
+
+ /* extract the kerberos ticket and decrypt and decode it */
+ ticket = kmalloc(ticket_len, GFP_NOFS);
+ if (!ticket)
+ return -ENOMEM;
+
+ abort_code = RXKADPACKETSHORT;
+ if (skb_copy_bits(skb, 0, ticket, ticket_len) < 0)
+ goto protocol_error_free;
+
+ ret = rxkad_decrypt_ticket(conn, ticket, ticket_len, &session_key,
+ &expiry, &abort_code);
+ if (ret < 0) {
+ *_abort_code = abort_code;
+ kfree(ticket);
+ return ret;
+ }
+
+ /* use the session key from inside the ticket to decrypt the
+ * response */
+ rxkad_decrypt_response(conn, &response, &session_key);
+
+ abort_code = RXKADSEALEDINCON;
+ if (response.encrypted.epoch != conn->epoch)
+ goto protocol_error_free;
+ if (response.encrypted.cid != conn->cid)
+ goto protocol_error_free;
+ if (ntohl(response.encrypted.securityIndex) != conn->security_ix)
+ goto protocol_error_free;
+ csum = response.encrypted.checksum;
+ response.encrypted.checksum = 0;
+ rxkad_calc_response_checksum(&response);
+ if (response.encrypted.checksum != csum)
+ goto protocol_error_free;
+
+ if (ntohl(response.encrypted.call_id[0]) > INT_MAX ||
+ ntohl(response.encrypted.call_id[1]) > INT_MAX ||
+ ntohl(response.encrypted.call_id[2]) > INT_MAX ||
+ ntohl(response.encrypted.call_id[3]) > INT_MAX)
+ goto protocol_error_free;
+
+ abort_code = RXKADOUTOFSEQUENCE;
+ if (response.encrypted.inc_nonce != htonl(conn->security_nonce + 1))
+ goto protocol_error_free;
+
+ abort_code = RXKADLEVELFAIL;
+ level = ntohl(response.encrypted.level);
+ if (level > RXRPC_SECURITY_ENCRYPT)
+ goto protocol_error_free;
+ conn->security_level = level;
+
+ /* create a key to hold the security data and expiration time - after
+ * this the connection security can be handled in exactly the same way
+ * as for a client connection */
+ ret = rxrpc_get_server_data_key(conn, &session_key, expiry, kvno);
+ if (ret < 0) {
+ kfree(ticket);
+ return ret;
+ }
+
+ kfree(ticket);
+ _leave(" = 0");
+ return 0;
+
+protocol_error_free:
+ kfree(ticket);
+protocol_error:
+ *_abort_code = abort_code;
+ _leave(" = -EPROTO [%d]", abort_code);
+ return -EPROTO;
+}
+
+/*
+ * clear the connection security
+ */
+static void rxkad_clear(struct rxrpc_connection *conn)
+{
+ _enter("");
+
+ if (conn->cipher)
+ crypto_free_blkcipher(conn->cipher);
+}
+
+/*
+ * RxRPC Kerberos-based security
+ */
+static struct rxrpc_security rxkad = {
+ .owner = THIS_MODULE,
+ .name = "rxkad",
+ .security_index = RXKAD_VERSION,
+ .init_connection_security = rxkad_init_connection_security,
+ .prime_packet_security = rxkad_prime_packet_security,
+ .secure_packet = rxkad_secure_packet,
+ .verify_packet = rxkad_verify_packet,
+ .issue_challenge = rxkad_issue_challenge,
+ .respond_to_challenge = rxkad_respond_to_challenge,
+ .verify_response = rxkad_verify_response,
+ .clear = rxkad_clear,
+};
+
+static __init int rxkad_init(void)
+{
+ _enter("");
+
+ /* pin the cipher we need so that the crypto layer doesn't invoke
+ * keventd to go get it */
+ rxkad_ci = crypto_alloc_blkcipher("pcbc(fcrypt)", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(rxkad_ci))
+ return PTR_ERR(rxkad_ci);
+
+ return rxrpc_register_security(&rxkad);
+}
+
+module_init(rxkad_init);
+
+static __exit void rxkad_exit(void)
+{
+ _enter("");
+
+ rxrpc_unregister_security(&rxkad);
+ crypto_free_blkcipher(rxkad_ci);
+}
+
+module_exit(rxkad_exit);
+++ /dev/null
-/* rxrpc_syms.c: exported Rx RPC layer interface symbols
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-
-#include <rxrpc/transport.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/krxiod.h>
-
-/* call.c */
-EXPORT_SYMBOL(rxrpc_create_call);
-EXPORT_SYMBOL(rxrpc_put_call);
-EXPORT_SYMBOL(rxrpc_call_abort);
-EXPORT_SYMBOL(rxrpc_call_read_data);
-EXPORT_SYMBOL(rxrpc_call_write_data);
-
-/* connection.c */
-EXPORT_SYMBOL(rxrpc_create_connection);
-EXPORT_SYMBOL(rxrpc_put_connection);
-
-/* transport.c */
-EXPORT_SYMBOL(rxrpc_create_transport);
-EXPORT_SYMBOL(rxrpc_put_transport);
-EXPORT_SYMBOL(rxrpc_add_service);
-EXPORT_SYMBOL(rxrpc_del_service);
+++ /dev/null
-/* sysctl.c: Rx RPC control
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/sysctl.h>
-#include <rxrpc/types.h>
-#include <rxrpc/rxrpc.h>
-#include <asm/errno.h>
-#include "internal.h"
-
-int rxrpc_ktrace;
-int rxrpc_kdebug;
-int rxrpc_kproto;
-int rxrpc_knet;
-
-#ifdef CONFIG_SYSCTL
-static struct ctl_table_header *rxrpc_sysctl = NULL;
-
-static ctl_table rxrpc_sysctl_table[] = {
- {
- .ctl_name = 1,
- .procname = "kdebug",
- .data = &rxrpc_kdebug,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = 2,
- .procname = "ktrace",
- .data = &rxrpc_ktrace,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = 3,
- .procname = "kproto",
- .data = &rxrpc_kproto,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = 4,
- .procname = "knet",
- .data = &rxrpc_knet,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = 5,
- .procname = "peertimo",
- .data = &rxrpc_peer_timeout,
- .maxlen = sizeof(unsigned long),
- .mode = 0644,
- .proc_handler = &proc_doulongvec_minmax
- },
- {
- .ctl_name = 6,
- .procname = "conntimo",
- .data = &rxrpc_conn_timeout,
- .maxlen = sizeof(unsigned long),
- .mode = 0644,
- .proc_handler = &proc_doulongvec_minmax
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table rxrpc_dir_sysctl_table[] = {
- {
- .ctl_name = 1,
- .procname = "rxrpc",
- .maxlen = 0,
- .mode = 0555,
- .child = rxrpc_sysctl_table
- },
- { .ctl_name = 0 }
-};
-#endif /* CONFIG_SYSCTL */
-
-/*****************************************************************************/
-/*
- * initialise the sysctl stuff for Rx RPC
- */
-int rxrpc_sysctl_init(void)
-{
-#ifdef CONFIG_SYSCTL
- rxrpc_sysctl = register_sysctl_table(rxrpc_dir_sysctl_table);
- if (!rxrpc_sysctl)
- return -ENOMEM;
-#endif /* CONFIG_SYSCTL */
-
- return 0;
-} /* end rxrpc_sysctl_init() */
-
-/*****************************************************************************/
-/*
- * clean up the sysctl stuff for Rx RPC
- */
-void rxrpc_sysctl_cleanup(void)
-{
-#ifdef CONFIG_SYSCTL
- if (rxrpc_sysctl) {
- unregister_sysctl_table(rxrpc_sysctl);
- rxrpc_sysctl = NULL;
- }
-#endif /* CONFIG_SYSCTL */
-
-} /* end rxrpc_sysctl_cleanup() */
+++ /dev/null
-/* transport.c: Rx Transport routines
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <rxrpc/transport.h>
-#include <rxrpc/peer.h>
-#include <rxrpc/connection.h>
-#include <rxrpc/call.h>
-#include <rxrpc/message.h>
-#include <rxrpc/krxiod.h>
-#include <rxrpc/krxsecd.h>
-#include <linux/udp.h>
-#include <linux/in.h>
-#include <linux/in6.h>
-#include <linux/icmp.h>
-#include <linux/skbuff.h>
-#include <net/sock.h>
-#include <net/ip.h>
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-#include <linux/ipv6.h> /* this should _really_ be in errqueue.h.. */
-#endif
-#include <linux/errqueue.h>
-#include <asm/uaccess.h>
-#include "internal.h"
-
-struct errormsg {
- struct cmsghdr cmsg; /* control message header */
- struct sock_extended_err ee; /* extended error information */
- struct sockaddr_in icmp_src; /* ICMP packet source address */
-};
-
-static DEFINE_SPINLOCK(rxrpc_transports_lock);
-static struct list_head rxrpc_transports = LIST_HEAD_INIT(rxrpc_transports);
-
-__RXACCT_DECL(atomic_t rxrpc_transport_count);
-LIST_HEAD(rxrpc_proc_transports);
-DECLARE_RWSEM(rxrpc_proc_transports_sem);
-
-static void rxrpc_data_ready(struct sock *sk, int count);
-static void rxrpc_error_report(struct sock *sk);
-static int rxrpc_trans_receive_new_call(struct rxrpc_transport *trans,
- struct list_head *msgq);
-static void rxrpc_trans_receive_error_report(struct rxrpc_transport *trans);
-
-/*****************************************************************************/
-/*
- * create a new transport endpoint using the specified UDP port
- */
-int rxrpc_create_transport(unsigned short port,
- struct rxrpc_transport **_trans)
-{
- struct rxrpc_transport *trans;
- struct sockaddr_in sin;
- mm_segment_t oldfs;
- struct sock *sock;
- int ret, opt;
-
- _enter("%hu", port);
-
- trans = kzalloc(sizeof(struct rxrpc_transport), GFP_KERNEL);
- if (!trans)
- return -ENOMEM;
-
- atomic_set(&trans->usage, 1);
- INIT_LIST_HEAD(&trans->services);
- INIT_LIST_HEAD(&trans->link);
- INIT_LIST_HEAD(&trans->krxiodq_link);
- spin_lock_init(&trans->lock);
- INIT_LIST_HEAD(&trans->peer_active);
- INIT_LIST_HEAD(&trans->peer_graveyard);
- spin_lock_init(&trans->peer_gylock);
- init_waitqueue_head(&trans->peer_gy_waitq);
- rwlock_init(&trans->peer_lock);
- atomic_set(&trans->peer_count, 0);
- trans->port = port;
-
- /* create a UDP socket to be my actual transport endpoint */
- ret = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &trans->socket);
- if (ret < 0)
- goto error;
-
- /* use the specified port */
- if (port) {
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_port = htons(port);
- ret = trans->socket->ops->bind(trans->socket,
- (struct sockaddr *) &sin,
- sizeof(sin));
- if (ret < 0)
- goto error;
- }
-
- opt = 1;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- ret = trans->socket->ops->setsockopt(trans->socket, SOL_IP, IP_RECVERR,
- (char *) &opt, sizeof(opt));
- set_fs(oldfs);
-
- spin_lock(&rxrpc_transports_lock);
- list_add(&trans->link, &rxrpc_transports);
- spin_unlock(&rxrpc_transports_lock);
-
- /* set the socket up */
- sock = trans->socket->sk;
- sock->sk_user_data = trans;
- sock->sk_data_ready = rxrpc_data_ready;
- sock->sk_error_report = rxrpc_error_report;
-
- down_write(&rxrpc_proc_transports_sem);
- list_add_tail(&trans->proc_link, &rxrpc_proc_transports);
- up_write(&rxrpc_proc_transports_sem);
-
- __RXACCT(atomic_inc(&rxrpc_transport_count));
-
- *_trans = trans;
- _leave(" = 0 (%p)", trans);
- return 0;
-
- error:
- /* finish cleaning up the transport (not really needed here, but...) */
- if (trans->socket)
- trans->socket->ops->shutdown(trans->socket, 2);
-
- /* close the socket */
- if (trans->socket) {
- trans->socket->sk->sk_user_data = NULL;
- sock_release(trans->socket);
- trans->socket = NULL;
- }
-
- kfree(trans);
-
-
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_create_transport() */
-
-/*****************************************************************************/
-/*
- * destroy a transport endpoint
- */
-void rxrpc_put_transport(struct rxrpc_transport *trans)
-{
- _enter("%p{u=%d p=%hu}",
- trans, atomic_read(&trans->usage), trans->port);
-
- BUG_ON(atomic_read(&trans->usage) <= 0);
-
- /* to prevent a race, the decrement and the dequeue must be
- * effectively atomic */
- spin_lock(&rxrpc_transports_lock);
- if (likely(!atomic_dec_and_test(&trans->usage))) {
- spin_unlock(&rxrpc_transports_lock);
- _leave("");
- return;
- }
-
- list_del(&trans->link);
- spin_unlock(&rxrpc_transports_lock);
-
- /* finish cleaning up the transport */
- if (trans->socket)
- trans->socket->ops->shutdown(trans->socket, 2);
-
- rxrpc_krxsecd_clear_transport(trans);
- rxrpc_krxiod_dequeue_transport(trans);
-
- /* discard all peer information */
- rxrpc_peer_clearall(trans);
-
- down_write(&rxrpc_proc_transports_sem);
- list_del(&trans->proc_link);
- up_write(&rxrpc_proc_transports_sem);
- __RXACCT(atomic_dec(&rxrpc_transport_count));
-
- /* close the socket */
- if (trans->socket) {
- trans->socket->sk->sk_user_data = NULL;
- sock_release(trans->socket);
- trans->socket = NULL;
- }
-
- kfree(trans);
-
- _leave("");
-} /* end rxrpc_put_transport() */
-
-/*****************************************************************************/
-/*
- * add a service to a transport to be listened upon
- */
-int rxrpc_add_service(struct rxrpc_transport *trans,
- struct rxrpc_service *newsrv)
-{
- struct rxrpc_service *srv;
- struct list_head *_p;
- int ret = -EEXIST;
-
- _enter("%p{%hu},%p{%hu}",
- trans, trans->port, newsrv, newsrv->service_id);
-
- /* verify that the service ID is not already present */
- spin_lock(&trans->lock);
-
- list_for_each(_p, &trans->services) {
- srv = list_entry(_p, struct rxrpc_service, link);
- if (srv->service_id == newsrv->service_id)
- goto out;
- }
-
- /* okay - add the transport to the list */
- list_add_tail(&newsrv->link, &trans->services);
- rxrpc_get_transport(trans);
- ret = 0;
-
- out:
- spin_unlock(&trans->lock);
-
- _leave("= %d", ret);
- return ret;
-} /* end rxrpc_add_service() */
-
-/*****************************************************************************/
-/*
- * remove a service from a transport
- */
-void rxrpc_del_service(struct rxrpc_transport *trans, struct rxrpc_service *srv)
-{
- _enter("%p{%hu},%p{%hu}", trans, trans->port, srv, srv->service_id);
-
- spin_lock(&trans->lock);
- list_del(&srv->link);
- spin_unlock(&trans->lock);
-
- rxrpc_put_transport(trans);
-
- _leave("");
-} /* end rxrpc_del_service() */
-
-/*****************************************************************************/
-/*
- * INET callback when data has been received on the socket.
- */
-static void rxrpc_data_ready(struct sock *sk, int count)
-{
- struct rxrpc_transport *trans;
-
- _enter("%p{t=%p},%d", sk, sk->sk_user_data, count);
-
- /* queue the transport for attention by krxiod */
- trans = (struct rxrpc_transport *) sk->sk_user_data;
- if (trans)
- rxrpc_krxiod_queue_transport(trans);
-
- /* wake up anyone waiting on the socket */
- if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
- wake_up_interruptible(sk->sk_sleep);
-
- _leave("");
-} /* end rxrpc_data_ready() */
-
-/*****************************************************************************/
-/*
- * INET callback when an ICMP error packet is received
- * - sk->err is error (EHOSTUNREACH, EPROTO or EMSGSIZE)
- */
-static void rxrpc_error_report(struct sock *sk)
-{
- struct rxrpc_transport *trans;
-
- _enter("%p{t=%p}", sk, sk->sk_user_data);
-
- /* queue the transport for attention by krxiod */
- trans = (struct rxrpc_transport *) sk->sk_user_data;
- if (trans) {
- trans->error_rcvd = 1;
- rxrpc_krxiod_queue_transport(trans);
- }
-
- /* wake up anyone waiting on the socket */
- if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
- wake_up_interruptible(sk->sk_sleep);
-
- _leave("");
-} /* end rxrpc_error_report() */
-
-/*****************************************************************************/
-/*
- * split a message up, allocating message records and filling them in
- * from the contents of a socket buffer
- */
-static int rxrpc_incoming_msg(struct rxrpc_transport *trans,
- struct sk_buff *pkt,
- struct list_head *msgq)
-{
- struct rxrpc_message *msg;
- int ret;
-
- _enter("");
-
- msg = kzalloc(sizeof(struct rxrpc_message), GFP_KERNEL);
- if (!msg) {
- _leave(" = -ENOMEM");
- return -ENOMEM;
- }
-
- atomic_set(&msg->usage, 1);
- list_add_tail(&msg->link,msgq);
-
- /* dig out the Rx routing parameters */
- if (skb_copy_bits(pkt, sizeof(struct udphdr),
- &msg->hdr, sizeof(msg->hdr)) < 0) {
- ret = -EBADMSG;
- goto error;
- }
-
- msg->trans = trans;
- msg->state = RXRPC_MSG_RECEIVED;
- skb_get_timestamp(pkt, &msg->stamp);
- if (msg->stamp.tv_sec == 0) {
- do_gettimeofday(&msg->stamp);
- if (pkt->sk)
- sock_enable_timestamp(pkt->sk);
- }
- msg->seq = ntohl(msg->hdr.seq);
-
- /* attach the packet */
- skb_get(pkt);
- msg->pkt = pkt;
-
- msg->offset = sizeof(struct udphdr) + sizeof(struct rxrpc_header);
- msg->dsize = msg->pkt->len - msg->offset;
-
- _net("Rx Received packet from %s (%08x;%08x,%1x,%d,%s,%02x,%d,%d)",
- msg->hdr.flags & RXRPC_CLIENT_INITIATED ? "client" : "server",
- ntohl(msg->hdr.epoch),
- (ntohl(msg->hdr.cid) & RXRPC_CIDMASK) >> RXRPC_CIDSHIFT,
- ntohl(msg->hdr.cid) & RXRPC_CHANNELMASK,
- ntohl(msg->hdr.callNumber),
- rxrpc_pkts[msg->hdr.type],
- msg->hdr.flags,
- ntohs(msg->hdr.serviceId),
- msg->hdr.securityIndex);
-
- __RXACCT(atomic_inc(&rxrpc_message_count));
-
- /* split off jumbo packets */
- while (msg->hdr.type == RXRPC_PACKET_TYPE_DATA &&
- msg->hdr.flags & RXRPC_JUMBO_PACKET
- ) {
- struct rxrpc_jumbo_header jumbo;
- struct rxrpc_message *jumbomsg = msg;
-
- _debug("split jumbo packet");
-
- /* quick sanity check */
- ret = -EBADMSG;
- if (msg->dsize <
- RXRPC_JUMBO_DATALEN + sizeof(struct rxrpc_jumbo_header))
- goto error;
- if (msg->hdr.flags & RXRPC_LAST_PACKET)
- goto error;
-
- /* dig out the secondary header */
- if (skb_copy_bits(pkt, msg->offset + RXRPC_JUMBO_DATALEN,
- &jumbo, sizeof(jumbo)) < 0)
- goto error;
-
- /* allocate a new message record */
- ret = -ENOMEM;
- msg = kmemdup(jumbomsg, sizeof(struct rxrpc_message), GFP_KERNEL);
- if (!msg)
- goto error;
-
- list_add_tail(&msg->link, msgq);
-
- /* adjust the jumbo packet */
- jumbomsg->dsize = RXRPC_JUMBO_DATALEN;
-
- /* attach the packet here too */
- skb_get(pkt);
-
- /* adjust the parameters */
- msg->seq++;
- msg->hdr.seq = htonl(msg->seq);
- msg->hdr.serial = htonl(ntohl(msg->hdr.serial) + 1);
- msg->offset += RXRPC_JUMBO_DATALEN +
- sizeof(struct rxrpc_jumbo_header);
- msg->dsize -= RXRPC_JUMBO_DATALEN +
- sizeof(struct rxrpc_jumbo_header);
- msg->hdr.flags = jumbo.flags;
- msg->hdr._rsvd = jumbo._rsvd;
-
- _net("Rx Split jumbo packet from %s"
- " (%08x;%08x,%1x,%d,%s,%02x,%d,%d)",
- msg->hdr.flags & RXRPC_CLIENT_INITIATED ? "client" : "server",
- ntohl(msg->hdr.epoch),
- (ntohl(msg->hdr.cid) & RXRPC_CIDMASK) >> RXRPC_CIDSHIFT,
- ntohl(msg->hdr.cid) & RXRPC_CHANNELMASK,
- ntohl(msg->hdr.callNumber),
- rxrpc_pkts[msg->hdr.type],
- msg->hdr.flags,
- ntohs(msg->hdr.serviceId),
- msg->hdr.securityIndex);
-
- __RXACCT(atomic_inc(&rxrpc_message_count));
- }
-
- _leave(" = 0 #%d", atomic_read(&rxrpc_message_count));
- return 0;
-
- error:
- while (!list_empty(msgq)) {
- msg = list_entry(msgq->next, struct rxrpc_message, link);
- list_del_init(&msg->link);
-
- rxrpc_put_message(msg);
- }
-
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_incoming_msg() */
-
-/*****************************************************************************/
-/*
- * accept a new call
- * - called from krxiod in process context
- */
-void rxrpc_trans_receive_packet(struct rxrpc_transport *trans)
-{
- struct rxrpc_message *msg;
- struct rxrpc_peer *peer;
- struct sk_buff *pkt;
- int ret;
- __be32 addr;
- __be16 port;
-
- LIST_HEAD(msgq);
-
- _enter("%p{%d}", trans, trans->port);
-
- for (;;) {
- /* deal with outstanting errors first */
- if (trans->error_rcvd)
- rxrpc_trans_receive_error_report(trans);
-
- /* attempt to receive a packet */
- pkt = skb_recv_datagram(trans->socket->sk, 0, 1, &ret);
- if (!pkt) {
- if (ret == -EAGAIN) {
- _leave(" EAGAIN");
- return;
- }
-
- /* an icmp error may have occurred */
- rxrpc_krxiod_queue_transport(trans);
- _leave(" error %d\n", ret);
- return;
- }
-
- /* we'll probably need to checksum it (didn't call
- * sock_recvmsg) */
- if (skb_checksum_complete(pkt)) {
- kfree_skb(pkt);
- rxrpc_krxiod_queue_transport(trans);
- _leave(" CSUM failed");
- return;
- }
-
- addr = pkt->nh.iph->saddr;
- port = pkt->h.uh->source;
-
- _net("Rx Received UDP packet from %08x:%04hu",
- ntohl(addr), ntohs(port));
-
- /* unmarshall the Rx parameters and split jumbo packets */
- ret = rxrpc_incoming_msg(trans, pkt, &msgq);
- if (ret < 0) {
- kfree_skb(pkt);
- rxrpc_krxiod_queue_transport(trans);
- _leave(" bad packet");
- return;
- }
-
- BUG_ON(list_empty(&msgq));
-
- msg = list_entry(msgq.next, struct rxrpc_message, link);
-
- /* locate the record for the peer from which it
- * originated */
- ret = rxrpc_peer_lookup(trans, addr, &peer);
- if (ret < 0) {
- kdebug("Rx No connections from that peer");
- rxrpc_trans_immediate_abort(trans, msg, -EINVAL);
- goto finished_msg;
- }
-
- /* try and find a matching connection */
- ret = rxrpc_connection_lookup(peer, msg, &msg->conn);
- if (ret < 0) {
- kdebug("Rx Unknown Connection");
- rxrpc_trans_immediate_abort(trans, msg, -EINVAL);
- rxrpc_put_peer(peer);
- goto finished_msg;
- }
- rxrpc_put_peer(peer);
-
- /* deal with the first packet of a new call */
- if (msg->hdr.flags & RXRPC_CLIENT_INITIATED &&
- msg->hdr.type == RXRPC_PACKET_TYPE_DATA &&
- ntohl(msg->hdr.seq) == 1
- ) {
- _debug("Rx New server call");
- rxrpc_trans_receive_new_call(trans, &msgq);
- goto finished_msg;
- }
-
- /* deal with subsequent packet(s) of call */
- _debug("Rx Call packet");
- while (!list_empty(&msgq)) {
- msg = list_entry(msgq.next, struct rxrpc_message, link);
- list_del_init(&msg->link);
-
- ret = rxrpc_conn_receive_call_packet(msg->conn, NULL, msg);
- if (ret < 0) {
- rxrpc_trans_immediate_abort(trans, msg, ret);
- rxrpc_put_message(msg);
- goto finished_msg;
- }
-
- rxrpc_put_message(msg);
- }
-
- goto finished_msg;
-
- /* dispose of the packets */
- finished_msg:
- while (!list_empty(&msgq)) {
- msg = list_entry(msgq.next, struct rxrpc_message, link);
- list_del_init(&msg->link);
-
- rxrpc_put_message(msg);
- }
- kfree_skb(pkt);
- }
-
- _leave("");
-
-} /* end rxrpc_trans_receive_packet() */
-
-/*****************************************************************************/
-/*
- * accept a new call from a client trying to connect to one of my services
- * - called in process context
- */
-static int rxrpc_trans_receive_new_call(struct rxrpc_transport *trans,
- struct list_head *msgq)
-{
- struct rxrpc_message *msg;
-
- _enter("");
-
- /* only bother with the first packet */
- msg = list_entry(msgq->next, struct rxrpc_message, link);
- list_del_init(&msg->link);
- rxrpc_krxsecd_queue_incoming_call(msg);
- rxrpc_put_message(msg);
-
- _leave(" = 0");
-
- return 0;
-} /* end rxrpc_trans_receive_new_call() */
-
-/*****************************************************************************/
-/*
- * perform an immediate abort without connection or call structures
- */
-int rxrpc_trans_immediate_abort(struct rxrpc_transport *trans,
- struct rxrpc_message *msg,
- int error)
-{
- struct rxrpc_header ahdr;
- struct sockaddr_in sin;
- struct msghdr msghdr;
- struct kvec iov[2];
- __be32 _error;
- int len, ret;
-
- _enter("%p,%p,%d", trans, msg, error);
-
- /* don't abort an abort packet */
- if (msg->hdr.type == RXRPC_PACKET_TYPE_ABORT) {
- _leave(" = 0");
- return 0;
- }
-
- _error = htonl(-error);
-
- /* set up the message to be transmitted */
- memcpy(&ahdr, &msg->hdr, sizeof(ahdr));
- ahdr.epoch = msg->hdr.epoch;
- ahdr.serial = htonl(1);
- ahdr.seq = 0;
- ahdr.type = RXRPC_PACKET_TYPE_ABORT;
- ahdr.flags = RXRPC_LAST_PACKET;
- ahdr.flags |= ~msg->hdr.flags & RXRPC_CLIENT_INITIATED;
-
- iov[0].iov_len = sizeof(ahdr);
- iov[0].iov_base = &ahdr;
- iov[1].iov_len = sizeof(_error);
- iov[1].iov_base = &_error;
-
- len = sizeof(ahdr) + sizeof(_error);
-
- memset(&sin,0,sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_port = msg->pkt->h.uh->source;
- sin.sin_addr.s_addr = msg->pkt->nh.iph->saddr;
-
- msghdr.msg_name = &sin;
- msghdr.msg_namelen = sizeof(sin);
- msghdr.msg_control = NULL;
- msghdr.msg_controllen = 0;
- msghdr.msg_flags = MSG_DONTWAIT;
-
- _net("Sending message type %d of %d bytes to %08x:%d",
- ahdr.type,
- len,
- ntohl(sin.sin_addr.s_addr),
- ntohs(sin.sin_port));
-
- /* send the message */
- ret = kernel_sendmsg(trans->socket, &msghdr, iov, 2, len);
-
- _leave(" = %d", ret);
- return ret;
-} /* end rxrpc_trans_immediate_abort() */
-
-/*****************************************************************************/
-/*
- * receive an ICMP error report and percolate it to all connections
- * heading to the affected host or port
- */
-static void rxrpc_trans_receive_error_report(struct rxrpc_transport *trans)
-{
- struct rxrpc_connection *conn;
- struct sockaddr_in sin;
- struct rxrpc_peer *peer;
- struct list_head connq, *_p;
- struct errormsg emsg;
- struct msghdr msg;
- __be16 port;
- int local, err;
-
- _enter("%p", trans);
-
- for (;;) {
- trans->error_rcvd = 0;
-
- /* try and receive an error message */
- msg.msg_name = &sin;
- msg.msg_namelen = sizeof(sin);
- msg.msg_control = &emsg;
- msg.msg_controllen = sizeof(emsg);
- msg.msg_flags = 0;
-
- err = kernel_recvmsg(trans->socket, &msg, NULL, 0, 0,
- MSG_ERRQUEUE | MSG_DONTWAIT | MSG_TRUNC);
-
- if (err == -EAGAIN) {
- _leave("");
- return;
- }
-
- if (err < 0) {
- printk("%s: unable to recv an error report: %d\n",
- __FUNCTION__, err);
- _leave("");
- return;
- }
-
- msg.msg_controllen = (char *) msg.msg_control - (char *) &emsg;
-
- if (msg.msg_controllen < sizeof(emsg.cmsg) ||
- msg.msg_namelen < sizeof(sin)) {
- printk("%s: short control message"
- " (nlen=%u clen=%Zu fl=%x)\n",
- __FUNCTION__,
- msg.msg_namelen,
- msg.msg_controllen,
- msg.msg_flags);
- continue;
- }
-
- _net("Rx Received control message"
- " { len=%Zu level=%u type=%u }",
- emsg.cmsg.cmsg_len,
- emsg.cmsg.cmsg_level,
- emsg.cmsg.cmsg_type);
-
- if (sin.sin_family != AF_INET) {
- printk("Rx Ignoring error report with non-INET address"
- " (fam=%u)",
- sin.sin_family);
- continue;
- }
-
- _net("Rx Received message pertaining to host addr=%x port=%hu",
- ntohl(sin.sin_addr.s_addr), ntohs(sin.sin_port));
-
- if (emsg.cmsg.cmsg_level != SOL_IP ||
- emsg.cmsg.cmsg_type != IP_RECVERR) {
- printk("Rx Ignoring unknown error report"
- " { level=%u type=%u }",
- emsg.cmsg.cmsg_level,
- emsg.cmsg.cmsg_type);
- continue;
- }
-
- if (msg.msg_controllen < sizeof(emsg.cmsg) + sizeof(emsg.ee)) {
- printk("%s: short error message (%Zu)\n",
- __FUNCTION__, msg.msg_controllen);
- _leave("");
- return;
- }
-
- port = sin.sin_port;
-
- switch (emsg.ee.ee_origin) {
- case SO_EE_ORIGIN_ICMP:
- local = 0;
- switch (emsg.ee.ee_type) {
- case ICMP_DEST_UNREACH:
- switch (emsg.ee.ee_code) {
- case ICMP_NET_UNREACH:
- _net("Rx Received ICMP Network Unreachable");
- port = 0;
- err = -ENETUNREACH;
- break;
- case ICMP_HOST_UNREACH:
- _net("Rx Received ICMP Host Unreachable");
- port = 0;
- err = -EHOSTUNREACH;
- break;
- case ICMP_PORT_UNREACH:
- _net("Rx Received ICMP Port Unreachable");
- err = -ECONNREFUSED;
- break;
- case ICMP_NET_UNKNOWN:
- _net("Rx Received ICMP Unknown Network");
- port = 0;
- err = -ENETUNREACH;
- break;
- case ICMP_HOST_UNKNOWN:
- _net("Rx Received ICMP Unknown Host");
- port = 0;
- err = -EHOSTUNREACH;
- break;
- default:
- _net("Rx Received ICMP DestUnreach { code=%u }",
- emsg.ee.ee_code);
- err = emsg.ee.ee_errno;
- break;
- }
- break;
-
- case ICMP_TIME_EXCEEDED:
- _net("Rx Received ICMP TTL Exceeded");
- err = emsg.ee.ee_errno;
- break;
-
- default:
- _proto("Rx Received ICMP error { type=%u code=%u }",
- emsg.ee.ee_type, emsg.ee.ee_code);
- err = emsg.ee.ee_errno;
- break;
- }
- break;
-
- case SO_EE_ORIGIN_LOCAL:
- _proto("Rx Received local error { error=%d }",
- emsg.ee.ee_errno);
- local = 1;
- err = emsg.ee.ee_errno;
- break;
-
- case SO_EE_ORIGIN_NONE:
- case SO_EE_ORIGIN_ICMP6:
- default:
- _proto("Rx Received error report { orig=%u }",
- emsg.ee.ee_origin);
- local = 0;
- err = emsg.ee.ee_errno;
- break;
- }
-
- /* find all the connections between this transport and the
- * affected destination */
- INIT_LIST_HEAD(&connq);
-
- if (rxrpc_peer_lookup(trans, sin.sin_addr.s_addr,
- &peer) == 0) {
- read_lock(&peer->conn_lock);
- list_for_each(_p, &peer->conn_active) {
- conn = list_entry(_p, struct rxrpc_connection,
- link);
- if (port && conn->addr.sin_port != port)
- continue;
- if (!list_empty(&conn->err_link))
- continue;
-
- rxrpc_get_connection(conn);
- list_add_tail(&conn->err_link, &connq);
- }
- read_unlock(&peer->conn_lock);
-
- /* service all those connections */
- while (!list_empty(&connq)) {
- conn = list_entry(connq.next,
- struct rxrpc_connection,
- err_link);
- list_del(&conn->err_link);
-
- rxrpc_conn_handle_error(conn, local, err);
-
- rxrpc_put_connection(conn);
- }
-
- rxrpc_put_peer(peer);
- }
- }
-
- _leave("");
- return;
-} /* end rxrpc_trans_receive_error_report() */
if NET_SCHED
-choice
- prompt "Packet scheduler clock source"
- default NET_SCH_CLK_GETTIMEOFDAY
- ---help---
- Packet schedulers need a monotonic clock that increments at a static
- rate. The kernel provides several suitable interfaces, each with
- different properties:
-
- - high resolution (us or better)
- - fast to read (minimal locking, no i/o access)
- - synchronized on all processors
- - handles cpu clock frequency changes
-
- but nothing provides all of the above.
-
-config NET_SCH_CLK_JIFFIES
- bool "Timer interrupt"
- ---help---
- Say Y here if you want to use the timer interrupt (jiffies) as clock
- source. This clock source is fast, synchronized on all processors and
- handles cpu clock frequency changes, but its resolution is too low
- for accurate shaping except at very low speed.
-
-config NET_SCH_CLK_GETTIMEOFDAY
- bool "gettimeofday"
- ---help---
- Say Y here if you want to use gettimeofday as clock source. This clock
- source has high resolution, is synchronized on all processors and
- handles cpu clock frequency changes, but it is slow.
-
- Choose this if you need a high resolution clock source but can't use
- the CPU's cycle counter.
-
-# don't allow on SMP x86 because they can have unsynchronized TSCs.
-# gettimeofday is a good alternative
-config NET_SCH_CLK_CPU
- bool "CPU cycle counter"
- depends on ((X86_TSC || X86_64) && !SMP) || ALPHA || SPARC64 || PPC64 || IA64
- ---help---
- Say Y here if you want to use the CPU's cycle counter as clock source.
- This is a cheap and high resolution clock source, but on some
- architectures it is not synchronized on all processors and doesn't
- handle cpu clock frequency changes.
-
- The useable cycle counters are:
-
- x86/x86_64 - Timestamp Counter
- alpha - Cycle Counter
- sparc64 - %ticks register
- ppc64 - Time base
- ia64 - Interval Time Counter
-
- Choose this if your CPU's cycle counter is working properly.
-
-endchoice
-
comment "Queueing/Scheduling"
config NET_SCH_CBQ
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
#include <linux/init.h>
#include <linux/kmod.h>
#include <net/sock.h>
#include <net/sch_generic.h>
#include <net/act_api.h>
+#include <net/netlink.h>
void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo)
{
continue;
a->priv = p;
a->order = n_i;
- r = (struct rtattr*) skb->tail;
+ r = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, a->order, 0, NULL);
err = tcf_action_dump_1(skb, a, 0, 0);
if (err < 0) {
index--;
- skb_trim(skb, (u8*)r - skb->data);
+ nlmsg_trim(skb, r);
goto done;
}
- r->rta_len = skb->tail - (u8*)r;
+ r->rta_len = skb_tail_pointer(skb) - (u8 *)r;
n_i++;
if (n_i >= TCA_ACT_MAX_PRIO)
goto done;
return n_i;
rtattr_failure:
- skb_trim(skb, (u8*)r - skb->data);
+ nlmsg_trim(skb, r);
goto done;
}
struct rtattr *r ;
int i= 0, n_i = 0;
- r = (struct rtattr*) skb->tail;
+ r = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, a->order, 0, NULL);
RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);
for (i = 0; i < (hinfo->hmask + 1); i++) {
}
}
RTA_PUT(skb, TCA_FCNT, 4, &n_i);
- r->rta_len = skb->tail - (u8*)r;
+ r->rta_len = skb_tail_pointer(skb) - (u8 *)r;
return n_i;
rtattr_failure:
- skb_trim(skb, (u8*)r - skb->data);
+ nlmsg_trim(skb, r);
return -EINVAL;
}
tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
{
int err = -EINVAL;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *r;
if (a->ops == NULL || a->ops->dump == NULL)
RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind);
if (tcf_action_copy_stats(skb, a, 0))
goto rtattr_failure;
- r = (struct rtattr*) skb->tail;
+ r = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
if ((err = tcf_action_dump_old(skb, a, bind, ref)) > 0) {
- r->rta_len = skb->tail - (u8*)r;
+ r->rta_len = skb_tail_pointer(skb) - (u8 *)r;
return err;
}
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
{
struct tc_action *a;
int err = -EINVAL;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *r ;
while ((a = act) != NULL) {
- r = (struct rtattr*) skb->tail;
+ r = (struct rtattr *)skb_tail_pointer(skb);
act = a->next;
RTA_PUT(skb, a->order, 0, NULL);
err = tcf_action_dump_1(skb, a, bind, ref);
if (err < 0)
goto errout;
- r->rta_len = skb->tail - (u8*)r;
+ r->rta_len = skb_tail_pointer(skb) - (u8 *)r;
}
return 0;
rtattr_failure:
err = -EINVAL;
errout:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return err;
}
{
struct tcamsg *t;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *x;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
t->tca__pad1 = 0;
t->tca__pad2 = 0;
- x = (struct rtattr*) skb->tail;
+ x = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
if (tcf_action_dump(skb, a, bind, ref) < 0)
goto rtattr_failure;
- x->rta_len = skb->tail - (u8*)x;
+ x->rta_len = skb_tail_pointer(skb) - (u8 *)x;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
return -ENOBUFS;
}
- b = (unsigned char *)skb->tail;
+ b = skb_tail_pointer(skb);
if (rtattr_parse_nested(tb, TCA_ACT_MAX, rta) < 0)
goto err_out;
t->tca__pad1 = 0;
t->tca__pad2 = 0;
- x = (struct rtattr *) skb->tail;
+ x = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
err = a->ops->walk(skb, &dcb, RTM_DELACTION, a);
if (err < 0)
goto rtattr_failure;
- x->rta_len = skb->tail - (u8 *) x;
+ x->rta_len = skb_tail_pointer(skb) - (u8 *)x;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
nlh->nlmsg_flags |= NLM_F_ROOT;
module_put(a->ops->owner);
kfree(a);
if (!skb)
return -ENOBUFS;
- b = (unsigned char *)skb->tail;
+ b = skb_tail_pointer(skb);
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
t = NLMSG_DATA(nlh);
t->tca__pad1 = 0;
t->tca__pad2 = 0;
- x = (struct rtattr*) skb->tail;
+ x = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
if (tcf_action_dump(skb, a, 0, 0) < 0)
goto rtattr_failure;
- x->rta_len = skb->tail - (u8*)x;
+ x->rta_len = skb_tail_pointer(skb) - (u8 *)x;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
NETLINK_CB(skb).dst_group = RTNLGRP_TC;
err = rtnetlink_send(skb, pid, RTNLGRP_TC, flags&NLM_F_ECHO);
tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
{
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *x;
struct tc_action_ops *a_o;
struct tc_action a;
t->tca__pad1 = 0;
t->tca__pad2 = 0;
- x = (struct rtattr *) skb->tail;
+ x = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
ret = a_o->walk(skb, cb, RTM_GETACTION, &a);
goto rtattr_failure;
if (ret > 0) {
- x->rta_len = skb->tail - (u8 *) x;
+ x->rta_len = skb_tail_pointer(skb) - (u8 *)x;
ret = skb->len;
} else
- skb_trim(skb, (u8*)x - skb->data);
+ nlmsg_trim(skb, x);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
if (NETLINK_CB(cb->skb).pid && ret)
nlh->nlmsg_flags |= NLM_F_MULTI;
module_put(a_o->owner);
rtattr_failure:
nlmsg_failure:
module_put(a_o->owner);
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return skb->len;
}
static int __init tc_action_init(void)
{
- struct rtnetlink_link *link_p = rtnetlink_links[PF_UNSPEC];
-
- if (link_p) {
- link_p[RTM_NEWACTION-RTM_BASE].doit = tc_ctl_action;
- link_p[RTM_DELACTION-RTM_BASE].doit = tc_ctl_action;
- link_p[RTM_GETACTION-RTM_BASE].doit = tc_ctl_action;
- link_p[RTM_GETACTION-RTM_BASE].dumpit = tc_dump_action;
- }
+ rtnl_register(PF_UNSPEC, RTM_NEWACTION, tc_ctl_action, NULL);
+ rtnl_register(PF_UNSPEC, RTM_DELACTION, tc_ctl_action, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETACTION, tc_ctl_action, tc_dump_action);
return 0;
}
#include <linux/module.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <linux/tc_act/tc_gact.h>
static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_gact opt;
struct tcf_gact *gact = a->priv;
struct tcf_t t;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/kmod.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <linux/tc_act/tc_ipt.h>
static int tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tcf_ipt *ipt = a->priv;
struct ipt_entry_target *t;
struct tcf_t tm;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
kfree(t);
return -1;
}
#include <linux/module.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <linux/tc_act/tc_mirred.h>
static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tcf_mirred *m = a->priv;
struct tc_mirred opt;
struct tcf_t t;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/module.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <linux/tc_act/tc_pedit.h>
}
}
- pptr = skb->nh.raw;
+ pptr = skb_network_header(skb);
spin_lock(&p->tcf_lock);
static int tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a,
int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tcf_pedit *p = a->priv;
struct tc_pedit *opt;
struct tcf_t t;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
kfree(opt);
return -1;
}
#include <linux/init.h>
#include <net/sock.h>
#include <net/act_api.h>
+#include <net/netlink.h>
#define L2T(p,L) ((p)->tcfp_R_tab->data[(L)>>(p)->tcfp_R_tab->rate.cell_log])
#define L2T_P(p,L) ((p)->tcfp_P_tab->data[(L)>>(p)->tcfp_P_tab->rate.cell_log])
continue;
a->priv = p;
a->order = index;
- r = (struct rtattr*) skb->tail;
+ r = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, a->order, 0, NULL);
if (type == RTM_DELACTION)
err = tcf_action_dump_1(skb, a, 0, 1);
err = tcf_action_dump_1(skb, a, 0, 0);
if (err < 0) {
index--;
- skb_trim(skb, (u8*)r - skb->data);
+ nlmsg_trim(skb, r);
goto done;
}
- r->rta_len = skb->tail - (u8*)r;
+ r->rta_len = skb_tail_pointer(skb) - (u8 *)r;
n_i++;
}
}
return n_i;
rtattr_failure:
- skb_trim(skb, (u8*)r - skb->data);
+ nlmsg_trim(skb, r);
goto done;
}
#endif
if (ret != ACT_P_CREATED)
return ret;
- PSCHED_GET_TIME(police->tcfp_t_c);
+ police->tcfp_t_c = psched_get_time();
police->tcf_index = parm->index ? parm->index :
tcf_hash_new_index(&police_idx_gen, &police_hash_info);
h = tcf_hash(police->tcf_index, POL_TAB_MASK);
return police->tcfp_result;
}
- PSCHED_GET_TIME(now);
-
- toks = PSCHED_TDIFF_SAFE(now, police->tcfp_t_c,
- police->tcfp_burst);
+ now = psched_get_time();
+ toks = psched_tdiff_bounded(now, police->tcfp_t_c,
+ police->tcfp_burst);
if (police->tcfp_P_tab) {
ptoks = toks + police->tcfp_ptoks;
if (ptoks > (long)L2T_P(police, police->tcfp_mtu))
static int
tcf_act_police_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tcf_police *police = a->priv;
struct tc_police opt;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
}
if (police->tcfp_P_tab)
police->tcfp_ptoks = L2T_P(police, police->tcfp_mtu);
- PSCHED_GET_TIME(police->tcfp_t_c);
+ police->tcfp_t_c = psched_get_time();
police->tcf_index = parm->index ? parm->index :
tcf_police_new_index();
police->tcf_action = parm->action;
return police->tcfp_result;
}
- PSCHED_GET_TIME(now);
- toks = PSCHED_TDIFF_SAFE(now, police->tcfp_t_c,
- police->tcfp_burst);
+ now = psched_get_time();
+ toks = psched_tdiff_bounded(now, police->tcfp_t_c,
+ police->tcfp_burst);
if (police->tcfp_P_tab) {
ptoks = toks + police->tcfp_ptoks;
if (ptoks > (long)L2T_P(police, police->tcfp_mtu))
int tcf_police_dump(struct sk_buff *skb, struct tcf_police *police)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_police opt;
opt.index = police->tcf_index;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
+#include <net/netlink.h>
#include <net/pkt_sched.h>
#define TCA_ACT_SIMP 22
static inline int tcf_simp_dump(struct sk_buff *skb, struct tc_action *a,
int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tcf_defact *d = a->priv;
struct tc_defact opt;
struct tcf_t t;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
#include <linux/init.h>
#include <linux/kmod.h>
+#include <linux/netlink.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
tcm = NLMSG_DATA(nlh);
if (tp->ops->dump && tp->ops->dump(tp, fh, skb, tcm) < 0)
goto rtattr_failure;
}
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
if ((dev = dev_get_by_index(tcm->tcm_ifindex)) == NULL)
return skb->len;
- read_lock(&qdisc_tree_lock);
if (!tcm->tcm_parent)
q = dev->qdisc_sleeping;
else
if (cl)
cops->put(q, cl);
out:
- read_unlock(&qdisc_tree_lock);
dev_put(dev);
return skb->len;
}
* to work with both old and new modes of entering
* tc data even if iproute2 was newer - jhs
*/
- struct rtattr * p_rta = (struct rtattr*) skb->tail;
+ struct rtattr *p_rta = (struct rtattr *)skb_tail_pointer(skb);
if (exts->action->type != TCA_OLD_COMPAT) {
RTA_PUT(skb, map->action, 0, NULL);
if (tcf_action_dump(skb, exts->action, 0, 0) < 0)
goto rtattr_failure;
- p_rta->rta_len = skb->tail - (u8*)p_rta;
+ p_rta->rta_len = skb_tail_pointer(skb) - (u8 *)p_rta;
} else if (map->police) {
RTA_PUT(skb, map->police, 0, NULL);
if (tcf_action_dump_old(skb, exts->action, 0, 0) < 0)
goto rtattr_failure;
- p_rta->rta_len = skb->tail - (u8*)p_rta;
+ p_rta->rta_len = skb_tail_pointer(skb) - (u8 *)p_rta;
}
}
#elif defined CONFIG_NET_CLS_POLICE
if (map->police && exts->police) {
- struct rtattr * p_rta = (struct rtattr*) skb->tail;
+ struct rtattr *p_rta = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, map->police, 0, NULL);
if (tcf_police_dump(skb, exts->police) < 0)
goto rtattr_failure;
- p_rta->rta_len = skb->tail - (u8*)p_rta;
+ p_rta->rta_len = skb_tail_pointer(skb) - (u8 *)p_rta;
}
#endif
return 0;
static int __init tc_filter_init(void)
{
- struct rtnetlink_link *link_p = rtnetlink_links[PF_UNSPEC];
+ rtnl_register(PF_UNSPEC, RTM_NEWTFILTER, tc_ctl_tfilter, NULL);
+ rtnl_register(PF_UNSPEC, RTM_DELTFILTER, tc_ctl_tfilter, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETTFILTER, tc_ctl_tfilter,
+ tc_dump_tfilter);
- /* Setup rtnetlink links. It is made here to avoid
- exporting large number of public symbols.
- */
-
- if (link_p) {
- link_p[RTM_NEWTFILTER-RTM_BASE].doit = tc_ctl_tfilter;
- link_p[RTM_DELTFILTER-RTM_BASE].doit = tc_ctl_tfilter;
- link_p[RTM_GETTFILTER-RTM_BASE].doit = tc_ctl_tfilter;
- link_p[RTM_GETTFILTER-RTM_BASE].dumpit = tc_dump_tfilter;
- }
return 0;
}
#include <linux/errno.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
+#include <net/netlink.h>
#include <net/act_api.h>
#include <net/pkt_cls.h>
struct sk_buff *skb, struct tcmsg *t)
{
struct basic_filter *f = (struct basic_filter *) fh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
if (f == NULL)
tcf_em_tree_dump(skb, &f->ematches, TCA_BASIC_EMATCHES) < 0)
goto rtattr_failure;
- rta->rta_len = (skb->tail - b);
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/notifier.h>
#include <linux/netfilter.h>
#include <net/ip.h>
+#include <net/netlink.h>
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
{
struct fw_head *head = (struct fw_head *)tp->root;
struct fw_filter *f = (struct fw_filter*)fh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
if (f == NULL)
if (tcf_exts_dump(skb, &f->exts, &fw_ext_map) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
if (tcf_exts_dump_stats(skb, &f->exts, &fw_ext_map) < 0)
goto rtattr_failure;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/etherdevice.h>
#include <linux/notifier.h>
#include <net/ip.h>
+#include <net/netlink.h>
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
static inline
void route4_reset_fastmap(struct net_device *dev, struct route4_head *head, u32 id)
{
- spin_lock_bh(&dev->queue_lock);
+ qdisc_lock_tree(dev);
memset(head->fastmap, 0, sizeof(head->fastmap));
- spin_unlock_bh(&dev->queue_lock);
+ qdisc_unlock_tree(dev);
}
static inline void
struct sk_buff *skb, struct tcmsg *t)
{
struct route4_filter *f = (struct route4_filter*)fh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
u32 id;
if (tcf_exts_dump(skb, &f->exts, &route_ext_map) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
if (tcf_exts_dump_stats(skb, &f->exts, &route_ext_map) < 0)
goto rtattr_failure;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
+#include <net/netlink.h>
#include <net/act_api.h>
#include <net/pkt_cls.h>
u8 tunnelid = 0;
u8 *xprt;
#if RSVP_DST_LEN == 4
- struct ipv6hdr *nhptr = skb->nh.ipv6h;
+ struct ipv6hdr *nhptr = ipv6_hdr(skb);
#else
- struct iphdr *nhptr = skb->nh.iph;
+ struct iphdr *nhptr = ip_hdr(skb);
#endif
restart:
dst = &nhptr->daddr;
protocol = nhptr->protocol;
xprt = ((u8*)nhptr) + (nhptr->ihl<<2);
- if (nhptr->frag_off&__constant_htons(IP_MF|IP_OFFSET))
+ if (nhptr->frag_off & htons(IP_MF|IP_OFFSET))
return -1;
#endif
{
struct rsvp_filter *f = (struct rsvp_filter*)fh;
struct rsvp_session *s;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
struct tc_rsvp_pinfo pinfo;
if (tcf_exts_dump(skb, &f->exts, &rsvp_ext_map) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
if (tcf_exts_dump_stats(skb, &f->exts, &rsvp_ext_map) < 0)
goto rtattr_failure;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <net/sock.h>
#include <net/act_api.h>
#include <net/pkt_cls.h>
+#include <net/netlink.h>
#define RSVP_DST_LEN 4
#define RSVP_ID "rsvp6"
#include <linux/netdevice.h>
#include <net/ip.h>
#include <net/act_api.h>
+#include <net/netlink.h>
#include <net/pkt_cls.h>
#include <net/route.h>
{
struct tcindex_data *p = PRIV(tp);
struct tcindex_filter_result *r = (struct tcindex_filter_result *) fh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
DPRINTK("tcindex_dump(tp %p,fh 0x%lx,skb %p,t %p),p %p,r %p,b %p\n",
RTA_PUT(skb,TCA_TCINDEX_SHIFT,sizeof(p->shift),&p->shift);
RTA_PUT(skb,TCA_TCINDEX_FALL_THROUGH,sizeof(p->fall_through),
&p->fall_through);
- rta->rta_len = skb->tail-b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
} else {
if (p->perfect) {
t->tcm_handle = r-p->perfect;
if (tcf_exts_dump(skb, &r->exts, &tcindex_ext_map) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail-b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
if (tcf_exts_dump_stats(skb, &r->exts, &tcindex_ext_map) < 0)
goto rtattr_failure;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/notifier.h>
#include <linux/rtnetlink.h>
#include <net/ip.h>
+#include <net/netlink.h>
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
} stack[TC_U32_MAXDEPTH];
struct tc_u_hnode *ht = (struct tc_u_hnode*)tp->root;
- u8 *ptr = skb->nh.raw;
+ u8 *ptr = skb_network_header(skb);
struct tc_u_knode *n;
int sdepth = 0;
int off2 = 0;
off2 = 0;
}
- if (ptr < skb->tail)
+ if (ptr < skb_tail_pointer(skb))
goto next_ht;
}
BUG_TRAP(ht->refcnt == 0);
kfree(ht);
- };
+ }
kfree(tp_c);
}
struct sk_buff *skb, struct tcmsg *t)
{
struct tc_u_knode *n = (struct tc_u_knode*)fh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
if (n == NULL)
#endif
}
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
if (TC_U32_KEY(n->handle))
if (tcf_exts_dump_stats(skb, &n->exts, &u32_ext_map) < 0)
goto rtattr_failure;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct tcf_pkt_info *info)
{
struct tc_u32_key *key = (struct tc_u32_key *) em->data;
- unsigned char *ptr = skb->nh.raw;
+ const unsigned char *ptr = skb_network_header(skb);
if (info) {
if (info->ptr)
int tcf_em_tree_dump(struct sk_buff *skb, struct tcf_ematch_tree *tree, int tlv)
{
int i;
- struct rtattr * top_start = (struct rtattr*) skb->tail;
- struct rtattr * list_start;
+ u8 *tail;
+ struct rtattr *top_start = (struct rtattr *)skb_tail_pointer(skb);
+ struct rtattr *list_start;
RTA_PUT(skb, tlv, 0, NULL);
RTA_PUT(skb, TCA_EMATCH_TREE_HDR, sizeof(tree->hdr), &tree->hdr);
- list_start = (struct rtattr *) skb->tail;
+ list_start = (struct rtattr *)skb_tail_pointer(skb);
RTA_PUT(skb, TCA_EMATCH_TREE_LIST, 0, NULL);
+ tail = skb_tail_pointer(skb);
for (i = 0; i < tree->hdr.nmatches; i++) {
- struct rtattr *match_start = (struct rtattr*) skb->tail;
+ struct rtattr *match_start = (struct rtattr *)tail;
struct tcf_ematch *em = tcf_em_get_match(tree, i);
struct tcf_ematch_hdr em_hdr = {
.kind = em->ops ? em->ops->kind : TCF_EM_CONTAINER,
} else if (em->datalen > 0)
RTA_PUT_NOHDR(skb, em->datalen, (void *) em->data);
- match_start->rta_len = skb->tail - (u8*) match_start;
+ tail = skb_tail_pointer(skb);
+ match_start->rta_len = tail - (u8 *)match_start;
}
- list_start->rta_len = skb->tail - (u8 *) list_start;
- top_start->rta_len = skb->tail - (u8 *) top_start;
+ list_start->rta_len = tail - (u8 *)list_start;
+ top_start->rta_len = tail - (u8 *)top_start;
return 0;
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/kmod.h>
#include <linux/list.h>
#include <linux/bitops.h>
+#include <linux/hrtimer.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
(root qdisc, all its children, children of children etc.)
*/
-static struct Qdisc *__qdisc_lookup(struct net_device *dev, u32 handle)
+struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
{
struct Qdisc *q;
return NULL;
}
-struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
-{
- struct Qdisc *q;
-
- read_lock(&qdisc_tree_lock);
- q = __qdisc_lookup(dev, handle);
- read_unlock(&qdisc_tree_lock);
- return q;
-}
-
static struct Qdisc *qdisc_leaf(struct Qdisc *p, u32 classid)
{
unsigned long cl;
}
}
+static enum hrtimer_restart qdisc_watchdog(struct hrtimer *timer)
+{
+ struct qdisc_watchdog *wd = container_of(timer, struct qdisc_watchdog,
+ timer);
+ struct net_device *dev = wd->qdisc->dev;
+
+ wd->qdisc->flags &= ~TCQ_F_THROTTLED;
+ smp_wmb();
+ if (spin_trylock(&dev->queue_lock)) {
+ qdisc_run(dev);
+ spin_unlock(&dev->queue_lock);
+ } else
+ netif_schedule(dev);
+
+ return HRTIMER_NORESTART;
+}
+
+void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc)
+{
+ hrtimer_init(&wd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
+ wd->timer.function = qdisc_watchdog;
+ wd->qdisc = qdisc;
+}
+EXPORT_SYMBOL(qdisc_watchdog_init);
+
+void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, psched_time_t expires)
+{
+ ktime_t time;
+
+ wd->qdisc->flags |= TCQ_F_THROTTLED;
+ time = ktime_set(0, 0);
+ time = ktime_add_ns(time, PSCHED_US2NS(expires));
+ hrtimer_start(&wd->timer, time, HRTIMER_MODE_ABS);
+}
+EXPORT_SYMBOL(qdisc_watchdog_schedule);
+
+void qdisc_watchdog_cancel(struct qdisc_watchdog *wd)
+{
+ hrtimer_cancel(&wd->timer);
+ wd->qdisc->flags &= ~TCQ_F_THROTTLED;
+}
+EXPORT_SYMBOL(qdisc_watchdog_cancel);
/* Allocate an unique handle from space managed by kernel */
if (n == 0)
return;
while ((parentid = sch->parent)) {
- sch = __qdisc_lookup(sch->dev, TC_H_MAJ(parentid));
+ sch = qdisc_lookup(sch->dev, TC_H_MAJ(parentid));
cops = sch->ops->cl_ops;
if (cops->qlen_notify) {
cl = cops->get(sch, parentid);
if (handle == TC_H_INGRESS) {
sch->flags |= TCQ_F_INGRESS;
+ sch->stats_lock = &dev->ingress_lock;
handle = TC_H_MAKE(TC_H_INGRESS, 0);
- } else if (handle == 0) {
- handle = qdisc_alloc_handle(dev);
- err = -ENOMEM;
- if (handle == 0)
- goto err_out3;
+ } else {
+ sch->stats_lock = &dev->queue_lock;
+ if (handle == 0) {
+ handle = qdisc_alloc_handle(dev);
+ err = -ENOMEM;
+ if (handle == 0)
+ goto err_out3;
+ }
}
sch->handle = handle;
return err;
if (q) {
qdisc_notify(skb, n, clid, q, NULL);
- spin_lock_bh(&dev->queue_lock);
+ qdisc_lock_tree(dev);
qdisc_destroy(q);
- spin_unlock_bh(&dev->queue_lock);
+ qdisc_unlock_tree(dev);
}
} else {
qdisc_notify(skb, n, clid, NULL, q);
err = qdisc_graft(dev, p, clid, q, &old_q);
if (err) {
if (q) {
- spin_lock_bh(&dev->queue_lock);
+ qdisc_lock_tree(dev);
qdisc_destroy(q);
- spin_unlock_bh(&dev->queue_lock);
+ qdisc_unlock_tree(dev);
}
return err;
}
qdisc_notify(skb, n, clid, old_q, q);
if (old_q) {
- spin_lock_bh(&dev->queue_lock);
+ qdisc_lock_tree(dev);
qdisc_destroy(old_q);
- spin_unlock_bh(&dev->queue_lock);
+ qdisc_unlock_tree(dev);
}
}
return 0;
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct gnet_dump d;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
if (gnet_stats_finish_copy(&d) < 0)
goto rtattr_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
continue;
if (idx > s_idx)
s_q_idx = 0;
- read_lock(&qdisc_tree_lock);
q_idx = 0;
list_for_each_entry(q, &dev->qdisc_list, list) {
if (q_idx < s_q_idx) {
continue;
}
if (tc_fill_qdisc(skb, q, q->parent, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI, RTM_NEWQDISC) <= 0) {
- read_unlock(&qdisc_tree_lock);
+ cb->nlh->nlmsg_seq, NLM_F_MULTI, RTM_NEWQDISC) <= 0)
goto done;
- }
q_idx++;
}
- read_unlock(&qdisc_tree_lock);
}
done:
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct gnet_dump d;
struct Qdisc_class_ops *cl_ops = q->ops->cl_ops;
if (gnet_stats_finish_copy(&d) < 0)
goto rtattr_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
s_t = cb->args[0];
t = 0;
- read_lock(&qdisc_tree_lock);
list_for_each_entry(q, &dev->qdisc_list, list) {
if (t < s_t || !q->ops->cl_ops ||
(tcm->tcm_parent &&
break;
t++;
}
- read_unlock(&qdisc_tree_lock);
cb->args[0] = t;
for ( ; tp; tp = tp->next) {
if ((tp->protocol == protocol ||
- tp->protocol == __constant_htons(ETH_P_ALL)) &&
+ tp->protocol == htons(ETH_P_ALL)) &&
(err = tp->classify(skb, tp, res)) >= 0) {
#ifdef CONFIG_NET_CLS_ACT
if ( TC_ACT_RECLASSIFY == err) {
return -1;
}
-static int psched_us_per_tick = 1;
-static int psched_tick_per_us = 1;
+void tcf_destroy(struct tcf_proto *tp)
+{
+ tp->ops->destroy(tp);
+ module_put(tp->ops->owner);
+ kfree(tp);
+}
+
+void tcf_destroy_chain(struct tcf_proto *fl)
+{
+ struct tcf_proto *tp;
+
+ while ((tp = fl) != NULL) {
+ fl = tp->next;
+ tcf_destroy(tp);
+ }
+}
+EXPORT_SYMBOL(tcf_destroy_chain);
#ifdef CONFIG_PROC_FS
static int psched_show(struct seq_file *seq, void *v)
{
seq_printf(seq, "%08x %08x %08x %08x\n",
- psched_tick_per_us, psched_us_per_tick,
- 1000000, HZ);
+ (u32)NSEC_PER_USEC, (u32)PSCHED_US2NS(1),
+ 1000000,
+ (u32)NSEC_PER_SEC/(u32)ktime_to_ns(KTIME_MONOTONIC_RES));
return 0;
}
};
#endif
-#ifdef CONFIG_NET_SCH_CLK_CPU
-psched_tdiff_t psched_clock_per_hz;
-int psched_clock_scale;
-EXPORT_SYMBOL(psched_clock_per_hz);
-EXPORT_SYMBOL(psched_clock_scale);
-
-psched_time_t psched_time_base;
-cycles_t psched_time_mark;
-EXPORT_SYMBOL(psched_time_mark);
-EXPORT_SYMBOL(psched_time_base);
-
-/*
- * Periodically adjust psched_time_base to avoid overflow
- * with 32-bit get_cycles(). Safe up to 4GHz CPU.
- */
-static void psched_tick(unsigned long);
-static DEFINE_TIMER(psched_timer, psched_tick, 0, 0);
-
-static void psched_tick(unsigned long dummy)
-{
- if (sizeof(cycles_t) == sizeof(u32)) {
- psched_time_t dummy_stamp;
- PSCHED_GET_TIME(dummy_stamp);
- psched_timer.expires = jiffies + 1*HZ;
- add_timer(&psched_timer);
- }
-}
-
-int __init psched_calibrate_clock(void)
-{
- psched_time_t stamp, stamp1;
- struct timeval tv, tv1;
- psched_tdiff_t delay;
- long rdelay;
- unsigned long stop;
-
- psched_tick(0);
- stop = jiffies + HZ/10;
- PSCHED_GET_TIME(stamp);
- do_gettimeofday(&tv);
- while (time_before(jiffies, stop)) {
- barrier();
- cpu_relax();
- }
- PSCHED_GET_TIME(stamp1);
- do_gettimeofday(&tv1);
-
- delay = PSCHED_TDIFF(stamp1, stamp);
- rdelay = tv1.tv_usec - tv.tv_usec;
- rdelay += (tv1.tv_sec - tv.tv_sec)*1000000;
- if (rdelay > delay)
- return -1;
- delay /= rdelay;
- psched_tick_per_us = delay;
- while ((delay>>=1) != 0)
- psched_clock_scale++;
- psched_us_per_tick = 1<<psched_clock_scale;
- psched_clock_per_hz = (psched_tick_per_us*(1000000/HZ))>>psched_clock_scale;
- return 0;
-}
-#endif
-
static int __init pktsched_init(void)
{
- struct rtnetlink_link *link_p;
-
-#ifdef CONFIG_NET_SCH_CLK_CPU
- if (psched_calibrate_clock() < 0)
- return -1;
-#elif defined(CONFIG_NET_SCH_CLK_JIFFIES)
- psched_tick_per_us = HZ<<PSCHED_JSCALE;
- psched_us_per_tick = 1000000;
-#endif
-
- link_p = rtnetlink_links[PF_UNSPEC];
-
- /* Setup rtnetlink links. It is made here to avoid
- exporting large number of public symbols.
- */
-
- if (link_p) {
- link_p[RTM_NEWQDISC-RTM_BASE].doit = tc_modify_qdisc;
- link_p[RTM_DELQDISC-RTM_BASE].doit = tc_get_qdisc;
- link_p[RTM_GETQDISC-RTM_BASE].doit = tc_get_qdisc;
- link_p[RTM_GETQDISC-RTM_BASE].dumpit = tc_dump_qdisc;
- link_p[RTM_NEWTCLASS-RTM_BASE].doit = tc_ctl_tclass;
- link_p[RTM_DELTCLASS-RTM_BASE].doit = tc_ctl_tclass;
- link_p[RTM_GETTCLASS-RTM_BASE].doit = tc_ctl_tclass;
- link_p[RTM_GETTCLASS-RTM_BASE].dumpit = tc_dump_tclass;
- }
-
register_qdisc(&pfifo_qdisc_ops);
register_qdisc(&bfifo_qdisc_ops);
proc_net_fops_create("psched", 0, &psched_fops);
+ rtnl_register(PF_UNSPEC, RTM_NEWQDISC, tc_modify_qdisc, NULL);
+ rtnl_register(PF_UNSPEC, RTM_DELQDISC, tc_get_qdisc, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETQDISC, tc_get_qdisc, tc_dump_qdisc);
+ rtnl_register(PF_UNSPEC, RTM_NEWTCLASS, tc_ctl_tclass, NULL);
+ rtnl_register(PF_UNSPEC, RTM_DELTCLASS, tc_ctl_tclass, NULL);
+ rtnl_register(PF_UNSPEC, RTM_GETTCLASS, tc_ctl_tclass, tc_dump_tclass);
+
return 0;
}
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/file.h> /* for fput */
+#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <net/sock.h>
return atm_tc_get(sch,classid);
}
-
-static void destroy_filters(struct atm_flow_data *flow)
-{
- struct tcf_proto *filter;
-
- while ((filter = flow->filter_list)) {
- DPRINTK("destroy_filters: destroying filter %p\n",filter);
- flow->filter_list = filter->next;
- tcf_destroy(filter);
- }
-}
-
-
/*
* atm_tc_put handles all destructions, including the ones that are explicitly
* requested (atm_tc_destroy, etc.). The assumption here is that we never drop
*prev = flow->next;
DPRINTK("atm_tc_put: qdisc %p\n",flow->q);
qdisc_destroy(flow->q);
- destroy_filters(flow);
+ tcf_destroy_chain(flow->filter_list);
if (flow->sock) {
DPRINTK("atm_tc_put: f_count %d\n",
file_count(flow->sock->file));
}
D2PRINTK("atm_tc_dequeue: sending on class %p\n",flow);
/* remove any LL header somebody else has attached */
- skb_pull(skb,(char *) skb->nh.iph-(char *) skb->data);
+ skb_pull(skb, skb_network_offset(skb));
if (skb_headroom(skb) < flow->hdr_len) {
struct sk_buff *new;
skb = new;
}
D2PRINTK("sch_atm_dequeue: ip %p, data %p\n",
- skb->nh.iph,skb->data);
+ skb_network_header(skb), skb->data);
ATM_SKB(skb)->vcc = flow->vcc;
memcpy(skb_push(skb,flow->hdr_len),flow->hdr,
flow->hdr_len);
DPRINTK("atm_tc_destroy(sch %p,[qdisc %p])\n",sch,p);
/* races ? */
while ((flow = p->flows)) {
- destroy_filters(flow);
+ tcf_destroy_chain(flow->filter_list);
if (flow->ref > 1)
printk(KERN_ERR "atm_destroy: %p->ref = %d\n",flow,
flow->ref);
{
struct atm_qdisc_data *p = PRIV(sch);
struct atm_flow_data *flow = (struct atm_flow_data *) cl;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
DPRINTK("atm_tc_dump_class(sch %p,[qdisc %p],flow %p,skb %p,tcm %p)\n",
RTA_PUT(skb,TCA_ATM_EXCESS,sizeof(zero),&zero);
}
- rta->rta_len = skb->tail-b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb,b-skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
static int
#include <linux/etherdevice.h>
#include <linux/notifier.h>
#include <net/ip.h>
+#include <net/netlink.h>
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
/* Overlimit strategy parameters */
void (*overlimit)(struct cbq_class *cl);
- long penalty;
+ psched_tdiff_t penalty;
/* General scheduler (WRR) parameters */
long allot;
psched_time_t undertime;
long avgidle;
long deficit; /* Saved deficit for WRR */
- unsigned long penalized;
+ psched_time_t penalized;
struct gnet_stats_basic bstats;
struct gnet_stats_queue qstats;
struct gnet_stats_rate_est rate_est;
psched_time_t now_rt; /* Cached real time */
unsigned pmask;
- struct timer_list delay_timer;
- struct timer_list wd_timer; /* Watchdog timer,
+ struct hrtimer delay_timer;
+ struct qdisc_watchdog watchdog; /* Watchdog timer,
started when CBQ has
backlog, but cannot
transmit just now */
- long wd_expires;
+ psched_tdiff_t wd_expires;
int toplevel;
u32 hgenerator;
};
psched_time_t now;
psched_tdiff_t incr;
- PSCHED_GET_TIME(now);
- incr = PSCHED_TDIFF(now, q->now_rt);
- PSCHED_TADD2(q->now, incr, now);
+ now = psched_get_time();
+ incr = now - q->now_rt;
+ now = q->now + incr;
do {
- if (PSCHED_TLESS(cl->undertime, now)) {
+ if (cl->undertime < now) {
q->toplevel = cl->level;
return;
}
static void cbq_ovl_classic(struct cbq_class *cl)
{
struct cbq_sched_data *q = qdisc_priv(cl->qdisc);
- psched_tdiff_t delay = PSCHED_TDIFF(cl->undertime, q->now);
+ psched_tdiff_t delay = cl->undertime - q->now;
if (!cl->delayed) {
delay += cl->offtime;
cl->avgidle = cl->minidle;
if (delay <= 0)
delay = 1;
- PSCHED_TADD2(q->now, delay, cl->undertime);
+ cl->undertime = q->now + delay;
cl->xstats.overactions++;
cl->delayed = 1;
psched_tdiff_t base_delay = q->wd_expires;
for (b = cl->borrow; b; b = b->borrow) {
- delay = PSCHED_TDIFF(b->undertime, q->now);
+ delay = b->undertime - q->now;
if (delay < base_delay) {
if (delay <= 0)
delay = 1;
static void cbq_ovl_delay(struct cbq_class *cl)
{
struct cbq_sched_data *q = qdisc_priv(cl->qdisc);
- psched_tdiff_t delay = PSCHED_TDIFF(cl->undertime, q->now);
+ psched_tdiff_t delay = cl->undertime - q->now;
if (!cl->delayed) {
- unsigned long sched = jiffies;
+ psched_time_t sched = q->now;
+ ktime_t expires;
delay += cl->offtime;
if (cl->avgidle < 0)
delay -= (-cl->avgidle) - ((-cl->avgidle) >> cl->ewma_log);
if (cl->avgidle < cl->minidle)
cl->avgidle = cl->minidle;
- PSCHED_TADD2(q->now, delay, cl->undertime);
+ cl->undertime = q->now + delay;
if (delay > 0) {
- sched += PSCHED_US2JIFFIE(delay) + cl->penalty;
+ sched += delay + cl->penalty;
cl->penalized = sched;
cl->cpriority = TC_CBQ_MAXPRIO;
q->pmask |= (1<<TC_CBQ_MAXPRIO);
- if (del_timer(&q->delay_timer) &&
- (long)(q->delay_timer.expires - sched) > 0)
- q->delay_timer.expires = sched;
- add_timer(&q->delay_timer);
+
+ expires = ktime_set(0, 0);
+ expires = ktime_add_ns(expires, PSCHED_US2NS(sched));
+ if (hrtimer_try_to_cancel(&q->delay_timer) &&
+ ktime_to_ns(ktime_sub(q->delay_timer.expires,
+ expires)) > 0)
+ q->delay_timer.expires = expires;
+ hrtimer_restart(&q->delay_timer);
cl->delayed = 1;
cl->xstats.overactions++;
return;
{
struct cbq_sched_data *q = qdisc_priv(cl->qdisc);
- cl->penalized = jiffies + cl->penalty;
+ cl->penalized = q->now + cl->penalty;
if (cl->cpriority != cl->priority2) {
cl->cpriority = cl->priority2;
cbq_ovl_classic(cl);
}
-static void cbq_watchdog(unsigned long arg)
-{
- struct Qdisc *sch = (struct Qdisc*)arg;
-
- sch->flags &= ~TCQ_F_THROTTLED;
- netif_schedule(sch->dev);
-}
-
-static unsigned long cbq_undelay_prio(struct cbq_sched_data *q, int prio)
+static psched_tdiff_t cbq_undelay_prio(struct cbq_sched_data *q, int prio,
+ psched_time_t now)
{
struct cbq_class *cl;
struct cbq_class *cl_prev = q->active[prio];
- unsigned long now = jiffies;
- unsigned long sched = now;
+ psched_time_t sched = now;
if (cl_prev == NULL)
- return now;
+ return 0;
do {
cl = cl_prev->next_alive;
- if ((long)(now - cl->penalized) > 0) {
+ if (now - cl->penalized > 0) {
cl_prev->next_alive = cl->next_alive;
cl->next_alive = NULL;
cl->cpriority = cl->priority;
}
cl = cl_prev->next_alive;
- } else if ((long)(sched - cl->penalized) > 0)
+ } else if (sched - cl->penalized > 0)
sched = cl->penalized;
} while ((cl_prev = cl) != q->active[prio]);
- return (long)(sched - now);
+ return sched - now;
}
-static void cbq_undelay(unsigned long arg)
+static enum hrtimer_restart cbq_undelay(struct hrtimer *timer)
{
- struct Qdisc *sch = (struct Qdisc*)arg;
- struct cbq_sched_data *q = qdisc_priv(sch);
- long delay = 0;
+ struct cbq_sched_data *q = container_of(timer, struct cbq_sched_data,
+ delay_timer);
+ struct Qdisc *sch = q->watchdog.qdisc;
+ psched_time_t now;
+ psched_tdiff_t delay = 0;
unsigned pmask;
+ now = psched_get_time();
+
pmask = q->pmask;
q->pmask = 0;
while (pmask) {
int prio = ffz(~pmask);
- long tmp;
+ psched_tdiff_t tmp;
pmask &= ~(1<<prio);
- tmp = cbq_undelay_prio(q, prio);
+ tmp = cbq_undelay_prio(q, prio, now);
if (tmp > 0) {
q->pmask |= 1<<prio;
if (tmp < delay || delay == 0)
}
if (delay) {
- q->delay_timer.expires = jiffies + delay;
- add_timer(&q->delay_timer);
+ ktime_t time;
+
+ time = ktime_set(0, 0);
+ time = ktime_add_ns(time, PSCHED_US2NS(now + delay));
+ hrtimer_start(&q->delay_timer, time, HRTIMER_MODE_ABS);
}
sch->flags &= ~TCQ_F_THROTTLED;
netif_schedule(sch->dev);
+ return HRTIMER_NORESTART;
}
if (cl && q->toplevel >= borrowed->level) {
if (cl->q->q.qlen > 1) {
do {
- if (PSCHED_IS_PASTPERFECT(borrowed->undertime)) {
+ if (borrowed->undertime == PSCHED_PASTPERFECT) {
q->toplevel = borrowed->level;
return;
}
idle = (now - last) - last_pktlen/rate
*/
- idle = PSCHED_TDIFF(q->now, cl->last);
+ idle = q->now - cl->last;
if ((unsigned long)idle > 128*1024*1024) {
avgidle = cl->maxidle;
} else {
idle -= L2T(&q->link, len);
idle += L2T(cl, len);
- PSCHED_AUDIT_TDIFF(idle);
-
- PSCHED_TADD2(q->now, idle, cl->undertime);
+ cl->undertime = q->now + idle;
} else {
/* Underlimit */
- PSCHED_SET_PASTPERFECT(cl->undertime);
+ cl->undertime = PSCHED_PASTPERFECT;
if (avgidle > cl->maxidle)
cl->avgidle = cl->maxidle;
else
if (cl->tparent == NULL)
return cl;
- if (PSCHED_IS_PASTPERFECT(cl->undertime) ||
- !PSCHED_TLESS(q->now, cl->undertime)) {
+ if (cl->undertime == PSCHED_PASTPERFECT || q->now >= cl->undertime) {
cl->delayed = 0;
return cl;
}
}
if (cl->level > q->toplevel)
return NULL;
- } while (!PSCHED_IS_PASTPERFECT(cl->undertime) &&
- PSCHED_TLESS(q->now, cl->undertime));
+ } while (cl->undertime != PSCHED_PASTPERFECT && q->now < cl->undertime);
cl->delayed = 0;
return cl;
psched_time_t now;
psched_tdiff_t incr;
- PSCHED_GET_TIME(now);
- incr = PSCHED_TDIFF(now, q->now_rt);
+ now = psched_get_time();
+ incr = now - q->now_rt;
if (q->tx_class) {
psched_tdiff_t incr2;
cbq_time = max(real_time, work);
*/
incr2 = L2T(&q->link, q->tx_len);
- PSCHED_TADD(q->now, incr2);
+ q->now += incr2;
cbq_update(q);
if ((incr -= incr2) < 0)
incr = 0;
}
- PSCHED_TADD(q->now, incr);
+ q->now += incr;
q->now_rt = now;
for (;;) {
*/
if (q->toplevel == TC_CBQ_MAXLEVEL &&
- PSCHED_IS_PASTPERFECT(q->link.undertime))
+ q->link.undertime == PSCHED_PASTPERFECT)
break;
q->toplevel = TC_CBQ_MAXLEVEL;
- PSCHED_SET_PASTPERFECT(q->link.undertime);
+ q->link.undertime = PSCHED_PASTPERFECT;
}
/* No packets in scheduler or nobody wants to give them to us :-(
if (sch->q.qlen) {
sch->qstats.overlimits++;
- if (q->wd_expires) {
- long delay = PSCHED_US2JIFFIE(q->wd_expires);
- if (delay <= 0)
- delay = 1;
- mod_timer(&q->wd_timer, jiffies + delay);
- sch->flags |= TCQ_F_THROTTLED;
- }
+ if (q->wd_expires)
+ qdisc_watchdog_schedule(&q->watchdog,
+ now + q->wd_expires);
}
return NULL;
}
q->pmask = 0;
q->tx_class = NULL;
q->tx_borrowed = NULL;
- del_timer(&q->wd_timer);
- del_timer(&q->delay_timer);
+ qdisc_watchdog_cancel(&q->watchdog);
+ hrtimer_cancel(&q->delay_timer);
q->toplevel = TC_CBQ_MAXLEVEL;
- PSCHED_GET_TIME(q->now);
+ q->now = psched_get_time();
q->now_rt = q->now;
for (prio = 0; prio <= TC_CBQ_MAXPRIO; prio++)
qdisc_reset(cl->q);
cl->next_alive = NULL;
- PSCHED_SET_PASTPERFECT(cl->undertime);
+ cl->undertime = PSCHED_PASTPERFECT;
cl->avgidle = cl->maxidle;
cl->deficit = cl->quantum;
cl->cpriority = cl->priority;
default:
return -EINVAL;
}
- cl->penalty = (ovl->penalty*HZ)/1000;
+ cl->penalty = ovl->penalty;
return 0;
}
q->link.minidle = -0x7FFFFFFF;
q->link.stats_lock = &sch->dev->queue_lock;
- init_timer(&q->wd_timer);
- q->wd_timer.data = (unsigned long)sch;
- q->wd_timer.function = cbq_watchdog;
- init_timer(&q->delay_timer);
- q->delay_timer.data = (unsigned long)sch;
+ qdisc_watchdog_init(&q->watchdog, sch);
+ hrtimer_init(&q->delay_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
q->delay_timer.function = cbq_undelay;
q->toplevel = TC_CBQ_MAXLEVEL;
- PSCHED_GET_TIME(q->now);
+ q->now = psched_get_time();
q->now_rt = q->now;
cbq_link_class(&q->link);
static __inline__ int cbq_dump_rate(struct sk_buff *skb, struct cbq_class *cl)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
RTA_PUT(skb, TCA_CBQ_RATE, sizeof(cl->R_tab->rate), &cl->R_tab->rate);
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
static __inline__ int cbq_dump_lss(struct sk_buff *skb, struct cbq_class *cl)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_lssopt opt;
opt.flags = 0;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
static __inline__ int cbq_dump_wrr(struct sk_buff *skb, struct cbq_class *cl)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_wrropt opt;
opt.flags = 0;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
static __inline__ int cbq_dump_ovl(struct sk_buff *skb, struct cbq_class *cl)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_ovl opt;
opt.strategy = cl->ovl_strategy;
opt.priority2 = cl->priority2+1;
opt.pad = 0;
- opt.penalty = (cl->penalty*1000)/HZ;
+ opt.penalty = cl->penalty;
RTA_PUT(skb, TCA_CBQ_OVL_STRATEGY, sizeof(opt), &opt);
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
static __inline__ int cbq_dump_fopt(struct sk_buff *skb, struct cbq_class *cl)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_fopt opt;
if (cl->split || cl->defmap) {
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#ifdef CONFIG_NET_CLS_POLICE
static __inline__ int cbq_dump_police(struct sk_buff *skb, struct cbq_class *cl)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_cbq_police opt;
if (cl->police) {
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#endif
static int cbq_dump(struct Qdisc *sch, struct sk_buff *skb)
{
struct cbq_sched_data *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
rta = (struct rtattr*)b;
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
if (cbq_dump_attr(skb, &q->link) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct sk_buff *skb, struct tcmsg *tcm)
{
struct cbq_class *cl = (struct cbq_class*)arg;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
if (cl->tparent)
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
if (cbq_dump_attr(skb, cl) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
cl->xstats.avgidle = cl->avgidle;
cl->xstats.undertime = 0;
- if (!PSCHED_IS_PASTPERFECT(cl->undertime))
- cl->xstats.undertime = PSCHED_TDIFF(cl->undertime, q->now);
+ if (cl->undertime != PSCHED_PASTPERFECT)
+ cl->xstats.undertime = cl->undertime - q->now;
if (gnet_stats_copy_basic(d, &cl->bstats) < 0 ||
#ifdef CONFIG_NET_ESTIMATOR
return 0;
}
-static void cbq_destroy_filters(struct cbq_class *cl)
-{
- struct tcf_proto *tp;
-
- while ((tp = cl->filter_list) != NULL) {
- cl->filter_list = tp->next;
- tcf_destroy(tp);
- }
-}
-
static void cbq_destroy_class(struct Qdisc *sch, struct cbq_class *cl)
{
struct cbq_sched_data *q = qdisc_priv(sch);
BUG_TRAP(!cl->filters);
- cbq_destroy_filters(cl);
+ tcf_destroy_chain(cl->filter_list);
qdisc_destroy(cl->q);
qdisc_put_rtab(cl->R_tab);
#ifdef CONFIG_NET_ESTIMATOR
*/
for (h = 0; h < 16; h++)
for (cl = q->classes[h]; cl; cl = cl->next)
- cbq_destroy_filters(cl);
+ tcf_destroy_chain(cl->filter_list);
for (h = 0; h < 16; h++) {
struct cbq_class *next;
/* FIXME: Safe with non-linear skbs? --RR */
switch (skb->protocol) {
case __constant_htons(ETH_P_IP):
- skb->tc_index = ipv4_get_dsfield(skb->nh.iph)
+ skb->tc_index = ipv4_get_dsfield(ip_hdr(skb))
& ~INET_ECN_MASK;
break;
case __constant_htons(ETH_P_IPV6):
- skb->tc_index = ipv6_get_dsfield(skb->nh.ipv6h)
+ skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb))
& ~INET_ECN_MASK;
break;
default:
skb->tc_index = 0;
break;
- };
+ }
}
if (TC_H_MAJ(skb->priority) == sch->handle)
if (p->default_index != NO_DEFAULT_INDEX)
skb->tc_index = p->default_index;
break;
- };
+ }
}
err = p->q->enqueue(skb,p->q);
switch (skb->protocol) {
case __constant_htons(ETH_P_IP):
- ipv4_change_dsfield(skb->nh.iph, p->mask[index],
+ ipv4_change_dsfield(ip_hdr(skb), p->mask[index],
p->value[index]);
break;
case __constant_htons(ETH_P_IPV6):
- ipv6_change_dsfield(skb->nh.ipv6h, p->mask[index],
+ ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index],
p->value[index]);
break;
default:
"unsupported protocol %d\n",
ntohs(skb->protocol));
break;
- };
+ }
return skb;
}
static void dsmark_destroy(struct Qdisc *sch)
{
struct dsmark_qdisc_data *p = PRIV(sch);
- struct tcf_proto *tp;
DPRINTK("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p);
- while (p->filter_list) {
- tp = p->filter_list;
- p->filter_list = tp->next;
- tcf_destroy(tp);
- }
-
+ tcf_destroy_chain(p->filter_list);
qdisc_destroy(p->q);
kfree(p->mask);
}
/* Main transmission queue. */
-/* Main qdisc structure lock.
-
- However, modifications
- to data, participating in scheduling must be additionally
- protected with dev->queue_lock spinlock.
-
- The idea is the following:
- - enqueue, dequeue are serialized via top level device
- spinlock dev->queue_lock.
- - tree walking is protected by read_lock(qdisc_tree_lock)
- and this lock is used only in process context.
- - updates to tree are made only under rtnl semaphore,
- hence this lock may be made without local bh disabling.
-
- qdisc_tree_lock must be grabbed BEFORE dev->queue_lock!
+/* Modifications to data participating in scheduling must be protected with
+ * dev->queue_lock spinlock.
+ *
+ * The idea is the following:
+ * - enqueue, dequeue are serialized via top level device
+ * spinlock dev->queue_lock.
+ * - ingress filtering is serialized via top level device
+ * spinlock dev->ingress_lock.
+ * - updates to tree and tree walking are only done under the rtnl mutex.
*/
-DEFINE_RWLOCK(qdisc_tree_lock);
void qdisc_lock_tree(struct net_device *dev)
{
- write_lock(&qdisc_tree_lock);
spin_lock_bh(&dev->queue_lock);
+ spin_lock(&dev->ingress_lock);
}
void qdisc_unlock_tree(struct net_device *dev)
{
+ spin_unlock(&dev->ingress_lock);
spin_unlock_bh(&dev->queue_lock);
- write_unlock(&qdisc_tree_lock);
}
/*
sch->dequeue = ops->dequeue;
sch->dev = dev;
dev_hold(dev);
- sch->stats_lock = &dev->queue_lock;
atomic_set(&sch->refcnt, 1);
return sch;
sch = qdisc_alloc(dev, ops);
if (IS_ERR(sch))
goto errout;
+ sch->stats_lock = &dev->queue_lock;
sch->parent = parentid;
if (!ops->init || ops->init(sch, NULL) == 0)
printk(KERN_INFO "%s: activation failed\n", dev->name);
return;
}
- write_lock(&qdisc_tree_lock);
list_add_tail(&qdisc->list, &dev->qdisc_list);
- write_unlock(&qdisc_tree_lock);
} else {
qdisc = &noqueue_qdisc;
}
- write_lock(&qdisc_tree_lock);
dev->qdisc_sleeping = qdisc;
- write_unlock(&qdisc_tree_lock);
}
if (!netif_carrier_ok(dev))
#include <linux/skbuff.h>
#include <linux/string.h>
#include <linux/slab.h>
-#include <linux/timer.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
+#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>
#include <asm/system.h>
struct list_head droplist; /* active leaf class list (for
dropping) */
struct sk_buff_head requeue; /* requeued packet */
- struct timer_list wd_timer; /* watchdog timer */
+ struct qdisc_watchdog watchdog; /* watchdog timer */
};
-/*
- * macros
- */
-#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
-#include <linux/time.h>
-#undef PSCHED_GET_TIME
-#define PSCHED_GET_TIME(stamp) \
-do { \
- struct timeval tv; \
- do_gettimeofday(&tv); \
- (stamp) = 1ULL * USEC_PER_SEC * tv.tv_sec + tv.tv_usec; \
-} while (0)
-#endif
-
#define HT_INFINITY 0xffffffffffffffffULL /* infinite time value */
* ism: (psched_us/byte) << ISM_SHIFT
* dx: psched_us
*
- * Clock source resolution (CONFIG_NET_SCH_CLK_*)
- * JIFFIES: for 48<=HZ<=1534 resolution is between 0.63us and 1.27us.
- * CPU: resolution is between 0.5us and 1us.
- * GETTIMEOFDAY: resolution is exactly 1us.
+ * The clock source resolution with ktime is 1.024us.
*
* sm and ism are scaled in order to keep effective digits.
* SM_SHIFT and ISM_SHIFT are selected to keep at least 4 effective
* digits in decimal using the following table.
*
- * Note: We can afford the additional accuracy (altq hfsc keeps at most
- * 3 effective digits) thanks to the fact that linux clock is bounded
- * much more tightly.
- *
* bits/sec 100Kbps 1Mbps 10Mbps 100Mbps 1Gbps
* ------------+-------------------------------------------------------
- * bytes/0.5us 6.25e-3 62.5e-3 625e-3 6250e-e 62500e-3
- * bytes/us 12.5e-3 125e-3 1250e-3 12500e-3 125000e-3
- * bytes/1.27us 15.875e-3 158.75e-3 1587.5e-3 15875e-3 158750e-3
+ * bytes/1.024us 12.8e-3 128e-3 1280e-3 12800e-3 128000e-3
*
- * 0.5us/byte 160 16 1.6 0.16 0.016
- * us/byte 80 8 0.8 0.08 0.008
- * 1.27us/byte 63 6.3 0.63 0.063 0.0063
+ * 1.024us/byte 78.125 7.8125 0.78125 0.078125 0.0078125
*/
#define SM_SHIFT 20
#define ISM_SHIFT 18
u64 sm;
sm = ((u64)m << SM_SHIFT);
- sm += PSCHED_JIFFIE2US(HZ) - 1;
- do_div(sm, PSCHED_JIFFIE2US(HZ));
+ sm += PSCHED_TICKS_PER_SEC - 1;
+ do_div(sm, PSCHED_TICKS_PER_SEC);
return sm;
}
if (m == 0)
ism = HT_INFINITY;
else {
- ism = ((u64)PSCHED_JIFFIE2US(HZ) << ISM_SHIFT);
+ ism = ((u64)PSCHED_TICKS_PER_SEC << ISM_SHIFT);
ism += m - 1;
do_div(ism, m);
}
{
u64 dx;
- dx = ((u64)d * PSCHED_JIFFIE2US(HZ));
+ dx = ((u64)d * PSCHED_TICKS_PER_SEC);
dx += USEC_PER_SEC - 1;
do_div(dx, USEC_PER_SEC);
return dx;
{
u64 m;
- m = (sm * PSCHED_JIFFIE2US(HZ)) >> SM_SHIFT;
+ m = (sm * PSCHED_TICKS_PER_SEC) >> SM_SHIFT;
return (u32)m;
}
u64 d;
d = dx * USEC_PER_SEC;
- do_div(d, PSCHED_JIFFIE2US(HZ));
+ do_div(d, PSCHED_TICKS_PER_SEC);
return (u32)d;
}
static void
init_ed(struct hfsc_class *cl, unsigned int next_len)
{
- u64 cur_time;
-
- PSCHED_GET_TIME(cur_time);
+ u64 cur_time = psched_get_time();
/* update the deadline curve */
rtsc_min(&cl->cl_deadline, &cl->cl_rsc, cur_time, cl->cl_cumul);
if (cl->cl_flags & HFSC_USC) {
/* class has upper limit curve */
if (cur_time == 0)
- PSCHED_GET_TIME(cur_time);
+ cur_time = psched_get_time();
/* update the ulimit curve */
rtsc_min(&cl->cl_ulimit, &cl->cl_usc, cur_time,
if (cl->cl_parent == NULL && parentid != TC_H_ROOT)
return -EINVAL;
}
- PSCHED_GET_TIME(cur_time);
+ cur_time = psched_get_time();
sch_tree_lock(sch);
if (rsc != NULL)
return 0;
}
-static void
-hfsc_destroy_filters(struct tcf_proto **fl)
-{
- struct tcf_proto *tp;
-
- while ((tp = *fl) != NULL) {
- *fl = tp->next;
- tcf_destroy(tp);
- }
-}
-
static void
hfsc_destroy_class(struct Qdisc *sch, struct hfsc_class *cl)
{
struct hfsc_sched *q = qdisc_priv(sch);
- hfsc_destroy_filters(&cl->filter_list);
+ tcf_destroy_chain(cl->filter_list);
qdisc_destroy(cl->qdisc);
#ifdef CONFIG_NET_ESTIMATOR
gen_kill_estimator(&cl->bstats, &cl->rate_est);
struct tcmsg *tcm)
{
struct hfsc_class *cl = (struct hfsc_class *)arg;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta = (struct rtattr *)b;
tcm->tcm_parent = cl->cl_parent ? cl->cl_parent->classid : TC_H_ROOT;
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
if (hfsc_dump_curves(skb, cl) < 0)
goto rtattr_failure;
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
}
static void
-hfsc_watchdog(unsigned long arg)
-{
- struct Qdisc *sch = (struct Qdisc *)arg;
-
- sch->flags &= ~TCQ_F_THROTTLED;
- netif_schedule(sch->dev);
-}
-
-static void
-hfsc_schedule_watchdog(struct Qdisc *sch, u64 cur_time)
+hfsc_schedule_watchdog(struct Qdisc *sch)
{
struct hfsc_sched *q = qdisc_priv(sch);
struct hfsc_class *cl;
u64 next_time = 0;
- long delay;
if ((cl = eltree_get_minel(q)) != NULL)
next_time = cl->cl_e;
next_time = q->root.cl_cfmin;
}
WARN_ON(next_time == 0);
- delay = next_time - cur_time;
- delay = PSCHED_US2JIFFIE(delay);
-
- sch->flags |= TCQ_F_THROTTLED;
- mod_timer(&q->wd_timer, jiffies + delay);
+ qdisc_watchdog_schedule(&q->watchdog, next_time);
}
static int
list_add(&q->root.hlist, &q->clhash[hfsc_hash(q->root.classid)]);
- init_timer(&q->wd_timer);
- q->wd_timer.function = hfsc_watchdog;
- q->wd_timer.data = (unsigned long)sch;
+ qdisc_watchdog_init(&q->watchdog, sch);
return 0;
}
__skb_queue_purge(&q->requeue);
q->eligible = RB_ROOT;
INIT_LIST_HEAD(&q->droplist);
- del_timer(&q->wd_timer);
- sch->flags &= ~TCQ_F_THROTTLED;
+ qdisc_watchdog_cancel(&q->watchdog);
sch->q.qlen = 0;
}
hfsc_destroy_class(sch, cl);
}
__skb_queue_purge(&q->requeue);
- del_timer(&q->wd_timer);
+ qdisc_watchdog_cancel(&q->watchdog);
}
static int
hfsc_dump_qdisc(struct Qdisc *sch, struct sk_buff *skb)
{
struct hfsc_sched *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_hfsc_qopt qopt;
qopt.defcls = q->defcls;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
if ((skb = __skb_dequeue(&q->requeue)))
goto out;
- PSCHED_GET_TIME(cur_time);
+ cur_time = psched_get_time();
/*
* if there are eligible classes, use real-time criteria.
cl = vttree_get_minvt(&q->root, cur_time);
if (cl == NULL) {
sch->qstats.overlimits++;
- hfsc_schedule_watchdog(sch, cur_time);
+ hfsc_schedule_watchdog(sch);
return NULL;
}
}
#include <linux/skbuff.h>
#include <linux/list.h>
#include <linux/compiler.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <linux/rbtree.h>
} un;
struct rb_node node[TC_HTB_NUMPRIO]; /* node for self or feed tree */
struct rb_node pq_node; /* node for event queue */
- unsigned long pq_key; /* the same type as jiffies global */
+ psched_time_t pq_key;
int prio_activity; /* for which prios are we active */
enum htb_cmode cmode; /* current mode of the class */
struct rb_root wait_pq[TC_HTB_MAXDEPTH];
/* time of nearest event per level (row) */
- unsigned long near_ev_cache[TC_HTB_MAXDEPTH];
-
- /* cached value of jiffies in dequeue */
- unsigned long jiffies;
+ psched_time_t near_ev_cache[TC_HTB_MAXDEPTH];
/* whether we hit non-work conserving class during this dequeue; we use */
int nwc_hit; /* this to disable mindelay complaint in dequeue */
int rate2quantum; /* quant = rate / rate2quantum */
psched_time_t now; /* cached dequeue time */
- struct timer_list timer; /* send delay timer */
+ struct qdisc_watchdog watchdog;
#ifdef HTB_RATECM
struct timer_list rttim; /* rate computer timer */
int recmp_bucket; /* which hash bucket to recompute next */
{
struct rb_node **p = &q->wait_pq[cl->level].rb_node, *parent = NULL;
- cl->pq_key = q->jiffies + PSCHED_US2JIFFIE(delay);
- if (cl->pq_key == q->jiffies)
+ cl->pq_key = q->now + delay;
+ if (cl->pq_key == q->now)
cl->pq_key++;
/* update the nearest event cache */
- if (time_after(q->near_ev_cache[cl->level], cl->pq_key))
+ if (q->near_ev_cache[cl->level] > cl->pq_key)
q->near_ev_cache[cl->level] = cl->pq_key;
while (*p) {
struct htb_class *c;
parent = *p;
c = rb_entry(parent, struct htb_class, pq_node);
- if (time_after_eq(cl->pq_key, c->pq_key))
+ if (cl->pq_key >= c->pq_key)
p = &parent->rb_right;
else
p = &parent->rb_left;
return NET_XMIT_SUCCESS;
}
-static void htb_timer(unsigned long arg)
-{
- struct Qdisc *sch = (struct Qdisc *)arg;
- sch->flags &= ~TCQ_F_THROTTLED;
- wmb();
- netif_schedule(sch->dev);
-}
-
#ifdef HTB_RATECM
#define RT_GEN(D,R) R+=D-(R/HTB_EWMAC);D=0
static void htb_rate_timer(unsigned long arg)
cl->T = toks
while (cl) {
- diff = PSCHED_TDIFF_SAFE(q->now, cl->t_c, (u32) cl->mbuffer);
+ diff = psched_tdiff_bounded(q->now, cl->t_c, cl->mbuffer);
if (cl->level >= level) {
if (cl->level == level)
cl->xstats.lends++;
/**
* htb_do_events - make mode changes to classes at the level
*
- * Scans event queue for pending events and applies them. Returns jiffies to
+ * Scans event queue for pending events and applies them. Returns time of
* next pending event (0 for no event in pq).
- * Note: Aplied are events whose have cl->pq_key <= jiffies.
+ * Note: Applied are events whose have cl->pq_key <= q->now.
*/
-static long htb_do_events(struct htb_sched *q, int level)
+static psched_time_t htb_do_events(struct htb_sched *q, int level)
{
int i;
return 0;
cl = rb_entry(p, struct htb_class, pq_node);
- if (time_after(cl->pq_key, q->jiffies)) {
- return cl->pq_key - q->jiffies;
- }
+ if (cl->pq_key > q->now)
+ return cl->pq_key;
+
htb_safe_rb_erase(p, q->wait_pq + level);
- diff = PSCHED_TDIFF_SAFE(q->now, cl->t_c, (u32) cl->mbuffer);
+ diff = psched_tdiff_bounded(q->now, cl->t_c, cl->mbuffer);
htb_change_class_mode(q, cl, &diff);
if (cl->cmode != HTB_CAN_SEND)
htb_add_to_wait_tree(q, cl, diff);
}
if (net_ratelimit())
printk(KERN_WARNING "htb: too many events !\n");
- return HZ / 10;
+ return q->now + PSCHED_TICKS_PER_SEC / 10;
}
/* Returns class->node+prio from id-tree where classe's id is >= id. NULL
return skb;
}
-static void htb_delay_by(struct Qdisc *sch, long delay)
-{
- struct htb_sched *q = qdisc_priv(sch);
- if (delay <= 0)
- delay = 1;
- if (unlikely(delay > 5 * HZ)) {
- if (net_ratelimit())
- printk(KERN_INFO "HTB delay %ld > 5sec\n", delay);
- delay = 5 * HZ;
- }
- /* why don't use jiffies here ? because expires can be in past */
- mod_timer(&q->timer, q->jiffies + delay);
- sch->flags |= TCQ_F_THROTTLED;
- sch->qstats.overlimits++;
-}
-
static struct sk_buff *htb_dequeue(struct Qdisc *sch)
{
struct sk_buff *skb = NULL;
struct htb_sched *q = qdisc_priv(sch);
int level;
- long min_delay;
-
- q->jiffies = jiffies;
+ psched_time_t next_event;
/* try to dequeue direct packets as high prio (!) to minimize cpu work */
skb = __skb_dequeue(&q->direct_queue);
if (!sch->q.qlen)
goto fin;
- PSCHED_GET_TIME(q->now);
+ q->now = psched_get_time();
- min_delay = LONG_MAX;
+ next_event = q->now + 5 * PSCHED_TICKS_PER_SEC;
q->nwc_hit = 0;
for (level = 0; level < TC_HTB_MAXDEPTH; level++) {
/* common case optimization - skip event handler quickly */
int m;
- long delay;
- if (time_after_eq(q->jiffies, q->near_ev_cache[level])) {
- delay = htb_do_events(q, level);
- q->near_ev_cache[level] =
- q->jiffies + (delay ? delay : HZ);
+ psched_time_t event;
+
+ if (q->now >= q->near_ev_cache[level]) {
+ event = htb_do_events(q, level);
+ q->near_ev_cache[level] = event ? event :
+ PSCHED_TICKS_PER_SEC;
} else
- delay = q->near_ev_cache[level] - q->jiffies;
+ event = q->near_ev_cache[level];
+
+ if (event && next_event > event)
+ next_event = event;
- if (delay && min_delay > delay)
- min_delay = delay;
m = ~q->row_mask[level];
while (m != (int)(-1)) {
int prio = ffz(m);
}
}
}
- htb_delay_by(sch, min_delay > 5 * HZ ? 5 * HZ : min_delay);
+ sch->qstats.overlimits++;
+ qdisc_watchdog_schedule(&q->watchdog, next_event);
fin:
return skb;
}
}
}
- sch->flags &= ~TCQ_F_THROTTLED;
- del_timer(&q->timer);
+ qdisc_watchdog_cancel(&q->watchdog);
__skb_queue_purge(&q->direct_queue);
sch->q.qlen = 0;
memset(q->row, 0, sizeof(q->row));
for (i = 0; i < TC_HTB_NUMPRIO; i++)
INIT_LIST_HEAD(q->drops + i);
- init_timer(&q->timer);
+ qdisc_watchdog_init(&q->watchdog, sch);
skb_queue_head_init(&q->direct_queue);
q->direct_qlen = sch->dev->tx_queue_len;
if (q->direct_qlen < 2) /* some devices have zero tx_queue_len */
q->direct_qlen = 2;
- q->timer.function = htb_timer;
- q->timer.data = (unsigned long)sch;
#ifdef HTB_RATECM
init_timer(&q->rttim);
static int htb_dump(struct Qdisc *sch, struct sk_buff *skb)
{
struct htb_sched *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
struct tc_htb_glob gopt;
spin_lock_bh(&sch->dev->queue_lock);
rta = (struct rtattr *)b;
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
RTA_PUT(skb, TCA_HTB_INIT, sizeof(gopt), &gopt);
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
spin_unlock_bh(&sch->dev->queue_lock);
return skb->len;
rtattr_failure:
spin_unlock_bh(&sch->dev->queue_lock);
- skb_trim(skb, skb->tail - skb->data);
+ nlmsg_trim(skb, skb_tail_pointer(skb));
return -1;
}
struct sk_buff *skb, struct tcmsg *tcm)
{
struct htb_class *cl = (struct htb_class *)arg;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
struct tc_htb_opt opt;
opt.prio = cl->un.leaf.prio;
opt.level = cl->level;
RTA_PUT(skb, TCA_HTB_PARMS, sizeof(opt), &opt);
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
spin_unlock_bh(&sch->dev->queue_lock);
return skb->len;
rtattr_failure:
spin_unlock_bh(&sch->dev->queue_lock);
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
return (unsigned long)cl;
}
-static void htb_destroy_filters(struct tcf_proto **fl)
-{
- struct tcf_proto *tp;
-
- while ((tp = *fl) != NULL) {
- *fl = tp->next;
- tcf_destroy(tp);
- }
-}
-
static inline int htb_parent_last_child(struct htb_class *cl)
{
if (!cl->parent)
parent->un.leaf.prio = parent->prio;
parent->tokens = parent->buffer;
parent->ctokens = parent->cbuffer;
- PSCHED_GET_TIME(parent->t_c);
+ parent->t_c = psched_get_time();
parent->cmode = HTB_CAN_SEND;
}
qdisc_put_rtab(cl->rate);
qdisc_put_rtab(cl->ceil);
- htb_destroy_filters(&cl->filter_list);
+ tcf_destroy_chain(cl->filter_list);
while (!list_empty(&cl->children))
htb_destroy_class(sch, list_entry(cl->children.next,
{
struct htb_sched *q = qdisc_priv(sch);
- del_timer_sync(&q->timer);
+ qdisc_watchdog_cancel(&q->watchdog);
#ifdef HTB_RATECM
del_timer_sync(&q->rttim);
#endif
and surprisingly it worked in 2.4. But it must precede it
because filter need its target class alive to be able to call
unbind_filter on it (without Oops). */
- htb_destroy_filters(&q->filter_list);
+ tcf_destroy_chain(q->filter_list);
while (!list_empty(&q->root))
htb_destroy_class(sch, list_entry(q->root.next,
/* set class to be in HTB_CAN_SEND state */
cl->tokens = hopt->buffer;
cl->ctokens = hopt->cbuffer;
- cl->mbuffer = PSCHED_JIFFIE2US(HZ * 60); /* 1min */
- PSCHED_GET_TIME(cl->t_c);
+ cl->mbuffer = 60 * PSCHED_TICKS_PER_SEC; /* 1min */
+ cl->t_c = psched_get_time();
cl->cmode = HTB_CAN_SEND;
/* attach to the hash list and parent's family */
#include <linux/netfilter_ipv6.h>
#include <linux/netfilter.h>
#include <linux/smp.h>
+#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <asm/byteorder.h>
#include <asm/uaccess.h>
skb->tc_index = TC_H_MIN(res.classid);
result = TC_ACT_OK;
break;
- };
+ }
/* backward compat */
#else
#ifdef CONFIG_NET_CLS_POLICE
sch->bstats.bytes += skb->len;
result = NF_ACCEPT;
break;
- };
+ }
#else
D2PRINTK("Overriding result to ACCEPT\n");
skb->dev ? (*pskb)->dev->name : "(no dev)",
skb->len);
-/*
-revisit later: Use a private since lock dev->queue_lock is also
-used on the egress (might slow things for an iota)
-*/
-
if (dev->qdisc_ingress) {
- spin_lock(&dev->queue_lock);
+ spin_lock(&dev->ingress_lock);
if ((q = dev->qdisc_ingress) != NULL)
fwres = q->enqueue(skb, q);
- spin_unlock(&dev->queue_lock);
+ spin_unlock(&dev->ingress_lock);
}
return fwres;
static void ingress_destroy(struct Qdisc *sch)
{
struct ingress_qdisc_data *p = PRIV(sch);
- struct tcf_proto *tp;
DPRINTK("ingress_destroy(sch %p,[qdisc %p])\n", sch, p);
- while (p->filter_list) {
- tp = p->filter_list;
- p->filter_list = tp->next;
- tcf_destroy(tp);
- }
+ tcf_destroy_chain(p->filter_list);
#if 0
/* for future use */
qdisc_destroy(p->q);
static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
rta = (struct rtattr *) b;
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
+#include <net/netlink.h>
#include <net/pkt_sched.h>
#define VERSION "1.2"
struct netem_sched_data {
struct Qdisc *qdisc;
- struct timer_list timer;
+ struct qdisc_watchdog watchdog;
+
+ psched_tdiff_t latency;
+ psched_tdiff_t jitter;
- u32 latency;
u32 loss;
u32 limit;
u32 counter;
u32 gap;
- u32 jitter;
u32 duplicate;
u32 reorder;
u32 corrupt;
struct crndstate {
- unsigned long last;
- unsigned long rho;
+ u32 last;
+ u32 rho;
} delay_cor, loss_cor, dup_cor, reorder_cor, corrupt_cor;
struct disttable {
* Next number depends on last value.
* rho is scaled to avoid floating point.
*/
-static unsigned long get_crandom(struct crndstate *state)
+static u32 get_crandom(struct crndstate *state)
{
u64 value, rho;
unsigned long answer;
- if (state->rho == 0) /* no correllation */
+ if (state->rho == 0) /* no correlation */
return net_random();
value = net_random();
* std deviation sigma. Uses table lookup to approximate the desired
* distribution, and a uniformly-distributed pseudo-random source.
*/
-static long tabledist(unsigned long mu, long sigma,
- struct crndstate *state, const struct disttable *dist)
+static psched_tdiff_t tabledist(psched_tdiff_t mu, psched_tdiff_t sigma,
+ struct crndstate *state,
+ const struct disttable *dist)
{
- long t, x;
- unsigned long rnd;
+ psched_tdiff_t x;
+ long t;
+ u32 rnd;
if (sigma == 0)
return mu;
delay = tabledist(q->latency, q->jitter,
&q->delay_cor, q->delay_dist);
- PSCHED_GET_TIME(now);
- PSCHED_TADD2(now, delay, cb->time_to_send);
+ now = psched_get_time();
+ cb->time_to_send = now + delay;
++q->counter;
ret = q->qdisc->enqueue(skb, q->qdisc);
} else {
* Do re-ordering by putting one out of N packets at the front
* of the queue.
*/
- PSCHED_GET_TIME(cb->time_to_send);
+ cb->time_to_send = psched_get_time();
q->counter = 0;
ret = q->qdisc->ops->requeue(skb, q->qdisc);
}
struct netem_sched_data *q = qdisc_priv(sch);
struct sk_buff *skb;
+ smp_mb();
+ if (sch->flags & TCQ_F_THROTTLED)
+ return NULL;
+
skb = q->qdisc->dequeue(q->qdisc);
if (skb) {
const struct netem_skb_cb *cb
= (const struct netem_skb_cb *)skb->cb;
- psched_time_t now;
+ psched_time_t now = psched_get_time();
/* if more time remaining? */
- PSCHED_GET_TIME(now);
-
- if (PSCHED_TLESS(cb->time_to_send, now)) {
+ if (cb->time_to_send <= now) {
pr_debug("netem_dequeue: return skb=%p\n", skb);
sch->q.qlen--;
- sch->flags &= ~TCQ_F_THROTTLED;
return skb;
- } else {
- psched_tdiff_t delay = PSCHED_TDIFF(cb->time_to_send, now);
-
- if (q->qdisc->ops->requeue(skb, q->qdisc) != NET_XMIT_SUCCESS) {
- qdisc_tree_decrease_qlen(q->qdisc, 1);
- sch->qstats.drops++;
- printk(KERN_ERR "netem: queue discpline %s could not requeue\n",
- q->qdisc->ops->id);
- }
+ }
- mod_timer(&q->timer, jiffies + PSCHED_US2JIFFIE(delay));
- sch->flags |= TCQ_F_THROTTLED;
+ if (unlikely(q->qdisc->ops->requeue(skb, q->qdisc) != NET_XMIT_SUCCESS)) {
+ qdisc_tree_decrease_qlen(q->qdisc, 1);
+ sch->qstats.drops++;
+ printk(KERN_ERR "netem: %s could not requeue\n",
+ q->qdisc->ops->id);
}
+
+ qdisc_watchdog_schedule(&q->watchdog, cb->time_to_send);
}
return NULL;
}
-static void netem_watchdog(unsigned long arg)
-{
- struct Qdisc *sch = (struct Qdisc *)arg;
-
- pr_debug("netem_watchdog qlen=%d\n", sch->q.qlen);
- sch->flags &= ~TCQ_F_THROTTLED;
- netif_schedule(sch->dev);
-}
-
static void netem_reset(struct Qdisc *sch)
{
struct netem_sched_data *q = qdisc_priv(sch);
qdisc_reset(q->qdisc);
sch->q.qlen = 0;
- sch->flags &= ~TCQ_F_THROTTLED;
- del_timer_sync(&q->timer);
+ qdisc_watchdog_cancel(&q->watchdog);
}
/* Pass size change message down to embedded FIFO */
q->loss = qopt->loss;
q->duplicate = qopt->duplicate;
- /* for compatiablity with earlier versions.
- * if gap is set, need to assume 100% probablity
+ /* for compatibility with earlier versions.
+ * if gap is set, need to assume 100% probability
*/
- q->reorder = ~0;
+ if (q->gap)
+ q->reorder = ~0;
/* Handle nested options after initial queue options.
* Should have put all options in nested format but too late now.
*/
struct fifo_sched_data {
u32 limit;
+ psched_time_t oldest;
};
static int tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch)
{
struct fifo_sched_data *q = qdisc_priv(sch);
struct sk_buff_head *list = &sch->q;
- const struct netem_skb_cb *ncb
- = (const struct netem_skb_cb *)nskb->cb;
+ psched_time_t tnext = ((struct netem_skb_cb *)nskb->cb)->time_to_send;
struct sk_buff *skb;
if (likely(skb_queue_len(list) < q->limit)) {
+ /* Optimize for add at tail */
+ if (likely(skb_queue_empty(list) || tnext >= q->oldest)) {
+ q->oldest = tnext;
+ return qdisc_enqueue_tail(nskb, sch);
+ }
+
skb_queue_reverse_walk(list, skb) {
const struct netem_skb_cb *cb
= (const struct netem_skb_cb *)skb->cb;
- if (!PSCHED_TLESS(ncb->time_to_send, cb->time_to_send))
+ if (tnext >= cb->time_to_send)
break;
}
return NET_XMIT_SUCCESS;
}
- return qdisc_drop(nskb, sch);
+ return qdisc_reshape_fail(nskb, sch);
}
static int tfifo_init(struct Qdisc *sch, struct rtattr *opt)
} else
q->limit = max_t(u32, sch->dev->tx_queue_len, 1);
+ q->oldest = PSCHED_PASTPERFECT;
return 0;
}
if (!opt)
return -EINVAL;
- init_timer(&q->timer);
- q->timer.function = netem_watchdog;
- q->timer.data = (unsigned long) sch;
+ qdisc_watchdog_init(&q->watchdog, sch);
q->qdisc = qdisc_create_dflt(sch->dev, &tfifo_qdisc_ops,
TC_H_MAKE(sch->handle, 1));
{
struct netem_sched_data *q = qdisc_priv(sch);
- del_timer_sync(&q->timer);
+ qdisc_watchdog_cancel(&q->watchdog);
qdisc_destroy(q->qdisc);
kfree(q->delay_dist);
}
static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
{
const struct netem_sched_data *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta = (struct rtattr *) b;
struct tc_netem_qopt qopt;
struct tc_netem_corr cor;
corrupt.correlation = q->corrupt_cor.rho;
RTA_PUT(skb, TCA_NETEM_CORRUPT, sizeof(corrupt), &corrupt);
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <net/ip.h>
#include <net/route.h>
#include <linux/skbuff.h>
+#include <net/netlink.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
*qerr = NET_XMIT_SUCCESS;
case TC_ACT_SHOT:
return NULL;
- };
+ }
if (!q->filter_list ) {
#else
{
int prio;
struct prio_sched_data *q = qdisc_priv(sch);
- struct tcf_proto *tp;
-
- while ((tp = q->filter_list) != NULL) {
- q->filter_list = tp->next;
- tcf_destroy(tp);
- }
+ tcf_destroy_chain(q->filter_list);
for (prio=0; prio<q->bands; prio++)
qdisc_destroy(q->queues[prio]);
}
static int prio_dump(struct Qdisc *sch, struct sk_buff *skb)
{
struct prio_sched_data *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_prio_qopt opt;
opt.bands = q->bands;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/notifier.h>
#include <linux/init.h>
#include <net/ip.h>
+#include <net/netlink.h>
#include <linux/ipv6.h>
#include <net/route.h>
#include <linux/skbuff.h>
switch (skb->protocol) {
case __constant_htons(ETH_P_IP):
{
- struct iphdr *iph = skb->nh.iph;
+ const struct iphdr *iph = ip_hdr(skb);
h = iph->daddr;
h2 = iph->saddr^iph->protocol;
if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) &&
}
case __constant_htons(ETH_P_IPV6):
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
h = iph->daddr.s6_addr32[3];
h2 = iph->saddr.s6_addr32[3]^iph->nexthdr;
if (iph->nexthdr == IPPROTO_TCP ||
static int sfq_dump(struct Qdisc *sch, struct sk_buff *skb)
{
struct sfq_sched_data *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tc_sfq_qopt opt;
opt.quantum = q->quantum;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
#include <linux/etherdevice.h>
#include <linux/notifier.h>
#include <net/ip.h>
+#include <net/netlink.h>
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
long tokens; /* Current number of B tokens */
long ptokens; /* Current number of P tokens */
psched_time_t t_c; /* Time check-point */
- struct timer_list wd_timer; /* Watchdog timer */
struct Qdisc *qdisc; /* Inner qdisc, default - bfifo queue */
+ struct qdisc_watchdog watchdog; /* Watchdog timer */
};
#define L2T(q,L) ((q)->R_tab->data[(L)>>(q)->R_tab->rate.cell_log])
return len;
}
-static void tbf_watchdog(unsigned long arg)
-{
- struct Qdisc *sch = (struct Qdisc*)arg;
-
- sch->flags &= ~TCQ_F_THROTTLED;
- netif_schedule(sch->dev);
-}
-
static struct sk_buff *tbf_dequeue(struct Qdisc* sch)
{
struct tbf_sched_data *q = qdisc_priv(sch);
if (skb) {
psched_time_t now;
- long toks, delay;
+ long toks;
long ptoks = 0;
unsigned int len = skb->len;
- PSCHED_GET_TIME(now);
-
- toks = PSCHED_TDIFF_SAFE(now, q->t_c, q->buffer);
+ now = psched_get_time();
+ toks = psched_tdiff_bounded(now, q->t_c, q->buffer);
if (q->P_tab) {
ptoks = toks + q->ptokens;
return skb;
}
- delay = PSCHED_US2JIFFIE(max_t(long, -toks, -ptoks));
-
- if (delay == 0)
- delay = 1;
-
- mod_timer(&q->wd_timer, jiffies+delay);
+ qdisc_watchdog_schedule(&q->watchdog,
+ now + max_t(long, -toks, -ptoks));
/* Maybe we have a shorter packet in the queue,
which can be sent now. It sounds cool,
sch->qstats.drops++;
}
- sch->flags |= TCQ_F_THROTTLED;
sch->qstats.overlimits++;
}
return NULL;
qdisc_reset(q->qdisc);
sch->q.qlen = 0;
- PSCHED_GET_TIME(q->t_c);
+ q->t_c = psched_get_time();
q->tokens = q->buffer;
q->ptokens = q->mtu;
- sch->flags &= ~TCQ_F_THROTTLED;
- del_timer(&q->wd_timer);
+ qdisc_watchdog_cancel(&q->watchdog);
}
static struct Qdisc *tbf_create_dflt_qdisc(struct Qdisc *sch, u32 limit)
if (opt == NULL)
return -EINVAL;
- PSCHED_GET_TIME(q->t_c);
- init_timer(&q->wd_timer);
- q->wd_timer.function = tbf_watchdog;
- q->wd_timer.data = (unsigned long)sch;
-
+ q->t_c = psched_get_time();
+ qdisc_watchdog_init(&q->watchdog, sch);
q->qdisc = &noop_qdisc;
return tbf_change(sch, opt);
{
struct tbf_sched_data *q = qdisc_priv(sch);
- del_timer(&q->wd_timer);
+ qdisc_watchdog_cancel(&q->watchdog);
if (q->P_tab)
qdisc_put_rtab(q->P_tab);
static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
{
struct tbf_sched_data *q = qdisc_priv(sch);
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct rtattr *rta;
struct tc_tbf_qopt opt;
opt.mtu = q->mtu;
opt.buffer = q->buffer;
RTA_PUT(skb, TCA_TBF_PARMS, sizeof(opt), &opt);
- rta->rta_len = skb->tail - b;
+ rta->rta_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
nores = 1;
break;
}
- __skb_pull(skb, skb->nh.raw - skb->data);
+ __skb_pull(skb, skb_network_offset(skb));
} while ((q = NEXT_SLAVE(q)) != start);
if (nores && skb_res == NULL) {
/* Initialize the maximum mumber of new data packets that can be sent
* in a burst.
*/
- asoc->max_burst = sctp_max_burst;
+ asoc->max_burst = sp->max_burst;
/* initialize association timers */
asoc->timeouts[SCTP_EVENT_TIMEOUT_NONE] = 0;
/* Record the transition on the transport. */
switch (command) {
case SCTP_TRANSPORT_UP:
+ /* If we are moving from UNCONFIRMED state due
+ * to heartbeat success, report the SCTP_ADDR_CONFIRMED
+ * state to the user, otherwise report SCTP_ADDR_AVAILABLE.
+ */
+ if (SCTP_UNCONFIRMED == transport->state &&
+ SCTP_HEARTBEAT_SUCCESS == error)
+ spc_state = SCTP_ADDR_CONFIRMED;
+ else
+ spc_state = SCTP_ADDR_AVAILABLE;
transport->state = SCTP_ACTIVE;
- spc_state = SCTP_ADDR_AVAILABLE;
break;
case SCTP_TRANSPORT_DOWN:
default:
return;
- };
+ }
/* Generate and send a SCTP_PEER_ADDR_CHANGE notification to the
* user.
return "FWD_TSN";
default:
- return "unknown chunk";
- };
+ break;
+ }
+
return "unknown chunk";
}
/* Calculate the SCTP checksum of an SCTP packet. */
static inline int sctp_rcv_checksum(struct sk_buff *skb)
{
- struct sctphdr *sh;
- __u32 cmp, val;
struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- sh = (struct sctphdr *) skb->h.raw;
- cmp = ntohl(sh->checksum);
-
- val = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
+ struct sctphdr *sh = sctp_hdr(skb);
+ __u32 cmp = ntohl(sh->checksum);
+ __u32 val = sctp_start_cksum((__u8 *)sh, skb_headlen(skb));
for (; list; list = list->next)
val = sctp_update_cksum((__u8 *)list->data, skb_headlen(list),
if (skb_linearize(skb))
goto discard_it;
- sh = (struct sctphdr *) skb->h.raw;
+ sh = sctp_hdr(skb);
/* Pull up the IP and SCTP headers. */
- __skb_pull(skb, skb->h.raw - skb->data);
+ __skb_pull(skb, skb_transport_offset(skb));
if (skb->len < sizeof(struct sctphdr))
goto discard_it;
- if ((skb->ip_summed != CHECKSUM_UNNECESSARY) &&
- (sctp_rcv_checksum(skb) < 0))
+ if (!skb_csum_unnecessary(skb) && sctp_rcv_checksum(skb) < 0)
goto discard_it;
skb_pull(skb, sizeof(struct sctphdr));
if (skb->len < sizeof(struct sctp_chunkhdr))
goto discard_it;
- family = ipver2af(skb->nh.iph->version);
+ family = ipver2af(ip_hdr(skb)->version);
af = sctp_get_af_specific(family);
if (unlikely(!af))
goto discard_it;
void sctp_v4_err(struct sk_buff *skb, __u32 info)
{
struct iphdr *iph = (struct iphdr *)skb->data;
- struct sctphdr *sh = (struct sctphdr *)(skb->data + (iph->ihl <<2));
- int type = skb->h.icmph->type;
- int code = skb->h.icmph->code;
+ const int ihlen = iph->ihl * 4;
+ const int type = icmp_hdr(skb)->type;
+ const int code = icmp_hdr(skb)->code;
struct sock *sk;
struct sctp_association *asoc = NULL;
struct sctp_transport *transport;
struct inet_sock *inet;
- char *saveip, *savesctp;
+ sk_buff_data_t saveip, savesctp;
int err;
- if (skb->len < ((iph->ihl << 2) + 8)) {
+ if (skb->len < ihlen + 8) {
ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
return;
}
/* Fix up skb to look at the embedded net header. */
- saveip = skb->nh.raw;
- savesctp = skb->h.raw;
- skb->nh.iph = iph;
- skb->h.raw = (char *)sh;
- sk = sctp_err_lookup(AF_INET, skb, sh, &asoc, &transport);
- /* Put back, the original pointers. */
- skb->nh.raw = saveip;
- skb->h.raw = savesctp;
+ saveip = skb->network_header;
+ savesctp = skb->transport_header;
+ skb_reset_network_header(skb);
+ skb_set_transport_header(skb, ihlen);
+ sk = sctp_err_lookup(AF_INET, skb, sctp_hdr(skb), &asoc, &transport);
+ /* Put back, the original values. */
+ skb->network_header = saveip;
+ skb->transport_header = savesctp;
if (!sk) {
ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
return;
break;
ch_end = ((__u8 *)ch) + WORD_ROUND(ntohs(ch->length));
- if (ch_end > skb->tail)
+ if (ch_end > skb_tail_pointer(skb))
break;
/* RFC 8.4, 2) If the OOTB packet contains an ABORT chunk, the
}
ch = (sctp_chunkhdr_t *) ch_end;
- } while (ch_end < skb->tail);
+ } while (ch_end < skb_tail_pointer(skb));
return 0;
struct sctp_association *asoc;
union sctp_addr addr;
union sctp_addr *paddr = &addr;
- struct sctphdr *sh = (struct sctphdr *) skb->h.raw;
+ struct sctphdr *sh = sctp_hdr(skb);
sctp_chunkhdr_t *ch;
union sctp_params params;
sctp_init_chunk_t *init;
* the skb->tail.
*/
if (unlikely(skb_is_nonlinear(chunk->skb))) {
- if (chunk->chunk_end > chunk->skb->tail)
- chunk->chunk_end = chunk->skb->tail;
+ if (chunk->chunk_end > skb_tail_pointer(chunk->skb))
+ chunk->chunk_end = skb_tail_pointer(chunk->skb);
}
skb_pull(chunk->skb, sizeof(sctp_chunkhdr_t));
chunk->subh.v = NULL; /* Subheader is no longer valid. */
- if (chunk->chunk_end < chunk->skb->tail) {
+ if (chunk->chunk_end < skb_tail_pointer(chunk->skb)) {
/* This is not a singleton */
chunk->singleton = 0;
- } else if (chunk->chunk_end > chunk->skb->tail) {
+ } else if (chunk->chunk_end > skb_tail_pointer(chunk->skb)) {
/* RFC 2960, Section 6.10 Bundling
*
* Partial chunks MUST NOT be placed in an SCTP packet.
int type, int code, int offset, __be32 info)
{
struct inet6_dev *idev;
- struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
- struct sctphdr *sh = (struct sctphdr *)(skb->data + offset);
struct sock *sk;
struct sctp_association *asoc;
struct sctp_transport *transport;
struct ipv6_pinfo *np;
- char *saveip, *savesctp;
+ sk_buff_data_t saveip, savesctp;
int err;
idev = in6_dev_get(skb->dev);
/* Fix up skb to look at the embedded net header. */
- saveip = skb->nh.raw;
- savesctp = skb->h.raw;
- skb->nh.ipv6h = iph;
- skb->h.raw = (char *)sh;
- sk = sctp_err_lookup(AF_INET6, skb, sh, &asoc, &transport);
+ saveip = skb->network_header;
+ savesctp = skb->transport_header;
+ skb_reset_network_header(skb);
+ skb_set_transport_header(skb, offset);
+ sk = sctp_err_lookup(AF_INET6, skb, sctp_hdr(skb), &asoc, &transport);
/* Put back, the original pointers. */
- skb->nh.raw = saveip;
- skb->h.raw = savesctp;
+ skb->network_header = saveip;
+ skb->transport_header = savesctp;
if (!sk) {
ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INERRORS);
goto out;
addr->v6.sin6_flowinfo = 0; /* FIXME */
addr->v6.sin6_scope_id = ((struct inet6_skb_parm *)skb->cb)->iif;
- sh = (struct sctphdr *) skb->h.raw;
+ sh = sctp_hdr(skb);
if (is_saddr) {
*port = sh->source;
- from = &skb->nh.ipv6h->saddr;
+ from = &ipv6_hdr(skb)->saddr;
} else {
*port = sh->dest;
- from = &skb->nh.ipv6h->daddr;
+ from = &ipv6_hdr(skb)->daddr;
}
ipv6_addr_copy(&addr->v6.sin6_addr, from);
}
default:
retval = SCTP_SCOPE_GLOBAL;
break;
- };
+ }
return retval;
}
/* Was this packet marked by Explicit Congestion Notification? */
static int sctp_v6_is_ce(const struct sk_buff *skb)
{
- return *((__u32 *)(skb->nh.ipv6h)) & htonl(1<<20);
+ return *((__u32 *)(ipv6_hdr(skb))) & htonl(1 << 20);
}
/* Dump the v6 addr to the seq file. */
if (msgname) {
sctp_inet6_msgname(msgname, addr_len);
sin6 = (struct sockaddr_in6 *)msgname;
- sh = (struct sctphdr *)skb->h.raw;
+ sh = sctp_hdr(skb);
sin6->sin6_port = sh->source;
/* Map ipv4 address into v4-mapped-on-v6 address. */
if (sctp_sk(skb->sk)->v4mapped &&
- skb->nh.iph->version == 4) {
+ ip_hdr(skb)->version == 4) {
sctp_v4_map_v6((union sctp_addr *)sin6);
- sin6->sin6_addr.s6_addr32[3] = skb->nh.iph->saddr;
+ sin6->sin6_addr.s6_addr32[3] = ip_hdr(skb)->saddr;
return;
}
/* Otherwise, just copy the v6 address. */
- ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr);
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) {
struct sctp_ulpevent *ev = sctp_skb2event(skb);
sin6->sin6_scope_id = ev->iif;
case SCTP_XMIT_OK:
case SCTP_XMIT_NAGLE_DELAY:
break;
- };
+ }
return retval;
}
SCTP_INC_STATS(SCTP_MIB_OUTORDERCHUNKS);
q->empty = 0;
break;
- };
+ }
} else {
list_add_tail(&chunk->list, &q->control_chunk_list);
SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
/* Retrieve a new chunk to bundle. */
lchunk = sctp_list_dequeue(lqueue);
break;
- };
+ }
/* If we are here due to a retransmit timeout or a fast
* retransmit and if there are any chunks left in the retransmit
default:
/* We built a chunk with an illegal type! */
BUG();
- };
+ }
}
/* Is it OK to send data chunks? */
SCTP_DEBUG_PRINTK("ACKed: %08x", tsn);
dbg_prt_state = 0;
dbg_ack_tsn = tsn;
- };
+ }
dbg_last_ack_tsn = tsn;
#endif /* SCTP_DEBUG */
SCTP_DEBUG_PRINTK("KEPT: %08x",tsn);
dbg_prt_state = 1;
dbg_kept_tsn = tsn;
- };
+ }
dbg_last_kept_tsn = tsn;
#endif /* SCTP_DEBUG */
} else {
SCTP_DEBUG_PRINTK("\n");
}
- };
+ }
#endif /* SCTP_DEBUG */
if (transport) {
if (bytes_acked) {
port = &addr->v4.sin_port;
addr->v4.sin_family = AF_INET;
- sh = (struct sctphdr *) skb->h.raw;
+ sh = sctp_hdr(skb);
if (is_saddr) {
*port = sh->source;
- from = &skb->nh.iph->saddr;
+ from = &ip_hdr(skb)->saddr;
} else {
*port = sh->dest;
- from = &skb->nh.iph->daddr;
+ from = &ip_hdr(skb)->daddr;
}
memcpy(&addr->v4.sin_addr.s_addr, from, sizeof(struct in_addr));
}
/* Was this packet marked by Explicit Congestion Notification? */
static int sctp_v4_is_ce(const struct sk_buff *skb)
{
- return INET_ECN_is_ce(skb->nh.iph->tos);
+ return INET_ECN_is_ce(ip_hdr(skb)->tos);
}
/* Create and initialize a new sk for the socket returned by accept(). */
/* Initialize and copy out a msgname from an inbound skb. */
static void sctp_inet_skb_msgname(struct sk_buff *skb, char *msgname, int *len)
{
- struct sctphdr *sh;
- struct sockaddr_in *sin;
-
if (msgname) {
+ struct sctphdr *sh = sctp_hdr(skb);
+ struct sockaddr_in *sin = (struct sockaddr_in *)msgname;
+
sctp_inet_msgname(msgname, len);
- sin = (struct sockaddr_in *)msgname;
- sh = (struct sctphdr *)skb->h.raw;
sin->sin_port = sh->source;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
}
}
sctp_cookie_preserve_enable = 1;
/* Max.Burst - 4 */
- sctp_max_burst = SCTP_MAX_BURST;
+ sctp_max_burst = SCTP_DEFAULT_MAX_BURST;
/* Association.Max.Retrans - 10 attempts
* Path.Max.Retrans - 5 attempts (per destination address)
struct sctp_af *af;
int iif = 0;
- af = sctp_get_af_specific(ipver2af(chunk->skb->nh.iph->version));
+ af = sctp_get_af_specific(ipver2af(ip_hdr(chunk->skb)->version));
if (af)
iif = af->skb_iif(chunk->skb);
/* Adjust the chunk length field. */
chunk->chunk_hdr->length = htons(chunklen + padlen + len);
- chunk->chunk_end = chunk->skb->tail;
+ chunk->chunk_end = skb_tail_pointer(chunk->skb);
return target;
}
/* Adjust the chunk length field. */
chunk->chunk_hdr->length =
htons(ntohs(chunk->chunk_hdr->length) + len);
- chunk->chunk_end = chunk->skb->tail;
+ chunk->chunk_end = skb_tail_pointer(chunk->skb);
out:
return err;
asoc->temp = 1;
skb = chunk->skb;
/* Create an entry for the source address of the packet. */
- af = sctp_get_af_specific(ipver2af(skb->nh.iph->version));
+ af = sctp_get_af_specific(ipver2af(ip_hdr(skb)->version));
if (unlikely(!af))
goto fail;
af->from_skb(&asoc->c.peer_addr, skb, 1);
default: /* Just ignore anything else. */
break;
- };
+ }
}
break;
SCTP_DEBUG_PRINTK("Ignoring param: %d for association %p.\n",
ntohs(param.p->type), asoc);
break;
- };
+ }
return retval;
}
struct sctp_ulpevent *event;
event = sctp_ulpevent_make_assoc_change(asoc,0, SCTP_CANT_STR_ASSOC,
- (__u16)error, 0, 0,
+ (__u16)error, 0, 0, NULL,
GFP_ATOMIC);
if (event)
/* Cancel any partial delivery in progress. */
sctp_ulpq_abort_pd(&asoc->ulpq, GFP_ATOMIC);
- event = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_COMM_LOST,
- (__u16)error, 0, 0,
+ if (event_type == SCTP_EVENT_T_CHUNK && subtype.chunk == SCTP_CID_ABORT)
+ event = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_COMM_LOST,
+ (__u16)error, 0, 0, chunk,
+ GFP_ATOMIC);
+ else
+ event = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_COMM_LOST,
+ (__u16)error, 0, 0, NULL,
GFP_ATOMIC);
if (event)
sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP,
status, state, event_type, subtype.chunk);
BUG();
break;
- };
+ }
bail:
return error;
printk(KERN_WARNING "Impossible command: %u, %p\n",
cmd->verb, cmd->obj.ptr);
break;
- };
+ }
+
if (error)
break;
}
* notification is passed to the upper layer.
*/
ev = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_SHUTDOWN_COMP,
- 0, 0, 0, GFP_ATOMIC);
+ 0, 0, 0, NULL, GFP_ATOMIC);
if (ev)
sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP,
SCTP_ULPEVENT(ev));
case -SCTP_IERROR_BAD_SIG:
default:
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
- };
+ }
}
ev = sctp_ulpevent_make_assoc_change(new_asoc, 0, SCTP_COMM_UP, 0,
new_asoc->c.sinit_num_ostreams,
new_asoc->c.sinit_max_instreams,
- GFP_ATOMIC);
+ NULL, GFP_ATOMIC);
if (!ev)
goto nomem_ev;
ev = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_COMM_UP,
0, asoc->c.sinit_num_ostreams,
asoc->c.sinit_max_instreams,
- GFP_ATOMIC);
+ NULL, GFP_ATOMIC);
if (!ev)
goto nomem;
new_asoc->c.my_ttag = asoc->c.my_vtag;
new_asoc->c.peer_ttag = asoc->c.peer_vtag;
break;
- };
+ }
/* Other parameters for the endpoint SHOULD be copied from the
* existing parameters of the association (e.g. number of
ev = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_RESTART, 0,
new_asoc->c.sinit_num_ostreams,
new_asoc->c.sinit_max_instreams,
- GFP_ATOMIC);
+ NULL, GFP_ATOMIC);
if (!ev)
goto nomem_ev;
ev = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_COMM_UP, 0,
new_asoc->c.sinit_num_ostreams,
new_asoc->c.sinit_max_instreams,
- GFP_ATOMIC);
+ NULL, GFP_ATOMIC);
if (!ev)
goto nomem_ev;
SCTP_COMM_UP, 0,
asoc->c.sinit_num_ostreams,
asoc->c.sinit_max_instreams,
- GFP_ATOMIC);
+ NULL, GFP_ATOMIC);
if (!ev)
goto nomem;
case -SCTP_IERROR_BAD_SIG:
default:
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
- };
+ }
}
/* Compare the tie_tag in cookie with the verification tag of
default: /* Discard packet for all others. */
retval = sctp_sf_pdiscard(ep, asoc, type, arg, commands);
break;
- };
+ }
/* Delete the tempory new association. */
sctp_add_cmd_sf(commands, SCTP_CMD_NEW_ASOC, SCTP_ASOC(new_asoc));
* notification is passed to the upper layer.
*/
ev = sctp_ulpevent_make_assoc_change(asoc, 0, SCTP_SHUTDOWN_COMP,
- 0, 0, 0, GFP_ATOMIC);
+ 0, 0, 0, NULL, GFP_ATOMIC);
if (!ev)
goto nomem;
break;
ch_end = ((__u8 *)ch) + WORD_ROUND(ntohs(ch->length));
- if (ch_end > skb->tail)
+ if (ch_end > skb_tail_pointer(skb))
break;
if (SCTP_CID_SHUTDOWN_ACK == ch->type)
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
ch = (sctp_chunkhdr_t *) ch_end;
- } while (ch_end < skb->tail);
+ } while (ch_end < skb_tail_pointer(skb));
if (ootb_shut_ack)
sctp_sf_shut_8_4_5(ep, asoc, type, arg, commands);
default:
BUG();
break;
- };
+ }
if (!reply)
goto nomem;
chunk->ecn_ce_done = 1;
af = sctp_get_af_specific(
- ipver2af(chunk->skb->nh.iph->version));
+ ipver2af(ip_hdr(chunk->skb)->version));
if (af && af->is_ce(chunk->skb) && asoc->peer.ecn_capable) {
/* Do real work as sideffect. */
default:
/* Yikes! We got an illegal event type. */
return &bug;
- };
+ }
}
#define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
default:
err = -EINVAL;
break;
- };
+ }
out:
kfree(kaddrs);
* SPP_HB_DEMAND - Request a user initiated heartbeat
* to be made immediately.
*
+ * SPP_HB_TIME_IS_ZERO - Specify's that the time for
+ * heartbeat delayis to be set to the value of 0
+ * milliseconds.
+ *
* SPP_PMTUD_ENABLE - This field will enable PMTU
* discovery upon the specified address. Note that
* if the address feild is empty then all addresses
return error;
}
- if (params->spp_hbinterval) {
- if (trans) {
- trans->hbinterval = msecs_to_jiffies(params->spp_hbinterval);
- } else if (asoc) {
- asoc->hbinterval = msecs_to_jiffies(params->spp_hbinterval);
- } else {
- sp->hbinterval = params->spp_hbinterval;
+ /* Note that unless the spp_flag is set to SPP_HB_ENABLE the value of
+ * this field is ignored. Note also that a value of zero indicates
+ * the current setting should be left unchanged.
+ */
+ if (params->spp_flags & SPP_HB_ENABLE) {
+
+ /* Re-zero the interval if the SPP_HB_TIME_IS_ZERO is
+ * set. This lets us use 0 value when this flag
+ * is set.
+ */
+ if (params->spp_flags & SPP_HB_TIME_IS_ZERO)
+ params->spp_hbinterval = 0;
+
+ if (params->spp_hbinterval ||
+ (params->spp_flags & SPP_HB_TIME_IS_ZERO)) {
+ if (trans) {
+ trans->hbinterval =
+ msecs_to_jiffies(params->spp_hbinterval);
+ } else if (asoc) {
+ asoc->hbinterval =
+ msecs_to_jiffies(params->spp_hbinterval);
+ } else {
+ sp->hbinterval = params->spp_hbinterval;
+ }
}
}
}
}
- if (params->spp_pathmtu) {
+ /* When Path MTU discovery is disabled the value specified here will
+ * be the "fixed" path mtu (i.e. the value of the spp_flags field must
+ * include the flag SPP_PMTUD_DISABLE for this field to have any
+ * effect).
+ */
+ if ((params->spp_flags & SPP_PMTUD_DISABLE) && params->spp_pathmtu) {
if (trans) {
trans->pathmtu = params->spp_pathmtu;
sctp_assoc_sync_pmtu(asoc);
}
}
- if (params->spp_sackdelay) {
+ /* Note that unless the spp_flag is set to SPP_SACKDELAY_ENABLE the
+ * value of this field is ignored. Note also that a value of zero
+ * indicates the current setting should be left unchanged.
+ */
+ if ((params->spp_flags & SPP_SACKDELAY_ENABLE) && params->spp_sackdelay) {
if (trans) {
trans->sackdelay =
msecs_to_jiffies(params->spp_sackdelay);
}
}
- if (params->spp_pathmaxrxt) {
+ /* Note that unless the spp_flag is set to SPP_PMTUD_ENABLE the value
+ * of this field is ignored. Note also that a value of zero
+ * indicates the current setting should be left unchanged.
+ */
+ if ((params->spp_flags & SPP_PMTUD_ENABLE) && params->spp_pathmaxrxt) {
if (trans) {
trans->pathmaxrxt = params->spp_pathmaxrxt;
} else if (asoc) {
return 0;
}
-/* 7.1.24. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
+/* 7.1.23. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
*
* This options will get or set the delayed ack timer. The time is set
* in milliseconds. If the assoc_id is 0, then this sets or gets the
return 0;
}
+/*
+ * 7.1.24. Get or set fragmented interleave (SCTP_FRAGMENT_INTERLEAVE)
+ *
+ * This options will at a minimum specify if the implementation is doing
+ * fragmented interleave. Fragmented interleave, for a one to many
+ * socket, is when subsequent calls to receive a message may return
+ * parts of messages from different associations. Some implementations
+ * may allow you to turn this value on or off. If so, when turned off,
+ * no fragment interleave will occur (which will cause a head of line
+ * blocking amongst multiple associations sharing the same one to many
+ * socket). When this option is turned on, then each receive call may
+ * come from a different association (thus the user must receive data
+ * with the extended calls (e.g. sctp_recvmsg) to keep track of which
+ * association each receive belongs to.
+ *
+ * This option takes a boolean value. A non-zero value indicates that
+ * fragmented interleave is on. A value of zero indicates that
+ * fragmented interleave is off.
+ *
+ * Note that it is important that an implementation that allows this
+ * option to be turned on, have it off by default. Otherwise an unaware
+ * application using the one to many model may become confused and act
+ * incorrectly.
+ */
+static int sctp_setsockopt_fragment_interleave(struct sock *sk,
+ char __user *optval,
+ int optlen)
+{
+ int val;
+
+ if (optlen != sizeof(int))
+ return -EINVAL;
+ if (get_user(val, (int __user *)optval))
+ return -EFAULT;
+
+ sctp_sk(sk)->frag_interleave = (val == 0) ? 0 : 1;
+
+ return 0;
+}
+
+/*
+ * 7.1.25. Set or Get the sctp partial delivery point
+ * (SCTP_PARTIAL_DELIVERY_POINT)
+ * This option will set or get the SCTP partial delivery point. This
+ * point is the size of a message where the partial delivery API will be
+ * invoked to help free up rwnd space for the peer. Setting this to a
+ * lower value will cause partial delivery's to happen more often. The
+ * calls argument is an integer that sets or gets the partial delivery
+ * point.
+ */
+static int sctp_setsockopt_partial_delivery_point(struct sock *sk,
+ char __user *optval,
+ int optlen)
+{
+ u32 val;
+
+ if (optlen != sizeof(u32))
+ return -EINVAL;
+ if (get_user(val, (int __user *)optval))
+ return -EFAULT;
+
+ sctp_sk(sk)->pd_point = val;
+
+ return 0; /* is this the right error code? */
+}
+
+/*
+ * 7.1.28. Set or Get the maximum burst (SCTP_MAX_BURST)
+ *
+ * This option will allow a user to change the maximum burst of packets
+ * that can be emitted by this association. Note that the default value
+ * is 4, and some implementations may restrict this setting so that it
+ * can only be lowered.
+ *
+ * NOTE: This text doesn't seem right. Do this on a socket basis with
+ * future associations inheriting the socket value.
+ */
+static int sctp_setsockopt_maxburst(struct sock *sk,
+ char __user *optval,
+ int optlen)
+{
+ int val;
+
+ if (optlen != sizeof(int))
+ return -EINVAL;
+ if (get_user(val, (int __user *)optval))
+ return -EFAULT;
+
+ if (val < 0)
+ return -EINVAL;
+
+ sctp_sk(sk)->max_burst = val;
+
+ return 0;
+}
+
/* API 6.2 setsockopt(), getsockopt()
*
* Applications use setsockopt() and getsockopt() to set or retrieve
case SCTP_DELAYED_ACK_TIME:
retval = sctp_setsockopt_delayed_ack_time(sk, optval, optlen);
break;
+ case SCTP_PARTIAL_DELIVERY_POINT:
+ retval = sctp_setsockopt_partial_delivery_point(sk, optval, optlen);
+ break;
case SCTP_INITMSG:
retval = sctp_setsockopt_initmsg(sk, optval, optlen);
case SCTP_CONTEXT:
retval = sctp_setsockopt_context(sk, optval, optlen);
break;
-
+ case SCTP_FRAGMENT_INTERLEAVE:
+ retval = sctp_setsockopt_fragment_interleave(sk, optval, optlen);
+ break;
+ case SCTP_MAX_BURST:
+ retval = sctp_setsockopt_maxburst(sk, optval, optlen);
+ break;
default:
retval = -ENOPROTOOPT;
break;
- };
+ }
sctp_release_sock(sk);
sp->default_timetolive = 0;
sp->default_rcv_context = 0;
+ sp->max_burst = sctp_max_burst;
/* Initialize default setup parameters. These parameters
* can be modified with the SCTP_INITMSG socket option or
sp->pf = sctp_get_pf_specific(sk->sk_family);
/* Control variables for partial data delivery. */
- sp->pd_mode = 0;
+ atomic_set(&sp->pd_mode, 0);
skb_queue_head_init(&sp->pd_lobby);
+ sp->frag_interleave = 0;
/* Create a per socket endpoint structure. Even if we
* change the data structure relationships, this may still
return 0;
}
-/* 7.1.24. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
+/* 7.1.23. Delayed Ack Timer (SCTP_DELAYED_ACK_TIME)
*
* This options will get or set the delayed ack timer. The time is set
* in milliseconds. If the assoc_id is 0, then this sets or gets the
return 0;
}
+/*
+ * 7.1.24. Get or set fragmented interleave (SCTP_FRAGMENT_INTERLEAVE)
+ * (chapter and verse is quoted at sctp_setsockopt_fragment_interleave())
+ */
+static int sctp_getsockopt_fragment_interleave(struct sock *sk, int len,
+ char __user *optval, int __user *optlen)
+{
+ int val;
+
+ if (len < sizeof(int))
+ return -EINVAL;
+
+ len = sizeof(int);
+
+ val = sctp_sk(sk)->frag_interleave;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return 0;
+}
+
+/*
+ * 7.1.25. Set or Get the sctp partial delivery point
+ * (chapter and verse is quoted at sctp_setsockopt_partial_delivery_point())
+ */
+static int sctp_getsockopt_partial_delivery_point(struct sock *sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ u32 val;
+
+ if (len < sizeof(u32))
+ return -EINVAL;
+
+ len = sizeof(u32);
+
+ val = sctp_sk(sk)->pd_point;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return -ENOTSUPP;
+}
+
+/*
+ * 7.1.28. Set or Get the maximum burst (SCTP_MAX_BURST)
+ * (chapter and verse is quoted at sctp_setsockopt_maxburst())
+ */
+static int sctp_getsockopt_maxburst(struct sock *sk, int len,
+ char __user *optval,
+ int __user *optlen)
+{
+ int val;
+
+ if (len < sizeof(int))
+ return -EINVAL;
+
+ len = sizeof(int);
+
+ val = sctp_sk(sk)->max_burst;
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &val, len))
+ return -EFAULT;
+
+ return -ENOTSUPP;
+}
+
SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
case SCTP_CONTEXT:
retval = sctp_getsockopt_context(sk, len, optval, optlen);
break;
+ case SCTP_FRAGMENT_INTERLEAVE:
+ retval = sctp_getsockopt_fragment_interleave(sk, len, optval,
+ optlen);
+ break;
+ case SCTP_PARTIAL_DELIVERY_POINT:
+ retval = sctp_getsockopt_partial_delivery_point(sk, len, optval,
+ optlen);
+ break;
+ case SCTP_MAX_BURST:
+ retval = sctp_getsockopt_maxburst(sk, len, optval, optlen);
+ break;
default:
retval = -ENOPROTOOPT;
break;
- };
+ }
sctp_release_sock(sk);
return retval;
break;
default:
break;
- };
+ }
+
if (err)
goto cleanup;
default:
return -EINVAL;
- };
+ }
}
return 0;
}
* 3) Peeling off non-partial delivery; move pd_lobby to receive_queue.
*/
skb_queue_head_init(&newsp->pd_lobby);
- sctp_sk(newsk)->pd_mode = assoc->ulpq.pd_mode;
+ atomic_set(&sctp_sk(newsk)->pd_mode, assoc->ulpq.pd_mode);
- if (sctp_sk(oldsk)->pd_mode) {
+ if (atomic_read(&sctp_sk(oldsk)->pd_mode)) {
struct sk_buff_head *queue;
/* Decide which queue to move pd_lobby skbs to. */
* delivery to finish.
*/
if (assoc->ulpq.pd_mode)
- sctp_clear_pd(oldsk);
+ sctp_clear_pd(oldsk, NULL);
}
transport->cwnd = max(transport->cwnd/2,
4*transport->asoc->pathmtu);
break;
- };
+ }
transport->partial_bytes_acked = 0;
SCTP_DEBUG_PRINTK("%s: transport: %p reason: %d cwnd: "
struct sctp_ulpevent *sctp_ulpevent_make_assoc_change(
const struct sctp_association *asoc,
__u16 flags, __u16 state, __u16 error, __u16 outbound,
- __u16 inbound, gfp_t gfp)
+ __u16 inbound, struct sctp_chunk *chunk, gfp_t gfp)
{
struct sctp_ulpevent *event;
struct sctp_assoc_change *sac;
struct sk_buff *skb;
- event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change),
+ /* If the lower layer passed in the chunk, it will be
+ * an ABORT, so we need to include it in the sac_info.
+ */
+ if (chunk) {
+ /* sctp_inqu_pop() has allready pulled off the chunk
+ * header. We need to put it back temporarily
+ */
+ skb_push(chunk->skb, sizeof(sctp_chunkhdr_t));
+
+ /* Copy the chunk data to a new skb and reserve enough
+ * head room to use as notification.
+ */
+ skb = skb_copy_expand(chunk->skb,
+ sizeof(struct sctp_assoc_change), 0, gfp);
+
+ if (!skb)
+ goto fail;
+
+ /* put back the chunk header now that we have a copy */
+ skb_pull(chunk->skb, sizeof(sctp_chunkhdr_t));
+
+ /* Embed the event fields inside the cloned skb. */
+ event = sctp_skb2event(skb);
+ sctp_ulpevent_init(event, MSG_NOTIFICATION, skb->truesize);
+
+ /* Include the notification structure */
+ sac = (struct sctp_assoc_change *)
+ skb_push(skb, sizeof(struct sctp_assoc_change));
+
+ /* Trim the buffer to the right length. */
+ skb_trim(skb, sizeof(struct sctp_assoc_change) +
+ ntohs(chunk->chunk_hdr->length));
+ } else {
+ event = sctp_ulpevent_new(sizeof(struct sctp_assoc_change),
MSG_NOTIFICATION, gfp);
- if (!event)
- goto fail;
- skb = sctp_event2skb(event);
- sac = (struct sctp_assoc_change *)
- skb_put(skb, sizeof(struct sctp_assoc_change));
+ if (!event)
+ goto fail;
+
+ skb = sctp_event2skb(event);
+ sac = (struct sctp_assoc_change *) skb_put(skb,
+ sizeof(struct sctp_assoc_change));
+ }
/* Socket Extensions for SCTP
* 5.3.1.1 SCTP_ASSOC_CHANGE
/* Clear the partial delivery mode for this socket. Note: This
* assumes that no association is currently in partial delivery mode.
*/
-int sctp_clear_pd(struct sock *sk)
+int sctp_clear_pd(struct sock *sk, struct sctp_association *asoc)
{
struct sctp_sock *sp = sctp_sk(sk);
- sp->pd_mode = 0;
- if (!skb_queue_empty(&sp->pd_lobby)) {
- struct list_head *list;
- sctp_skb_list_tail(&sp->pd_lobby, &sk->sk_receive_queue);
- list = (struct list_head *)&sctp_sk(sk)->pd_lobby;
- INIT_LIST_HEAD(list);
- return 1;
+ if (atomic_dec_and_test(&sp->pd_mode)) {
+ /* This means there are no other associations in PD, so
+ * we can go ahead and clear out the lobby in one shot
+ */
+ if (!skb_queue_empty(&sp->pd_lobby)) {
+ struct list_head *list;
+ sctp_skb_list_tail(&sp->pd_lobby, &sk->sk_receive_queue);
+ list = (struct list_head *)&sctp_sk(sk)->pd_lobby;
+ INIT_LIST_HEAD(list);
+ return 1;
+ }
+ } else {
+ /* There are other associations in PD, so we only need to
+ * pull stuff out of the lobby that belongs to the
+ * associations that is exiting PD (all of its notifications
+ * are posted here).
+ */
+ if (!skb_queue_empty(&sp->pd_lobby) && asoc) {
+ struct sk_buff *skb, *tmp;
+ struct sctp_ulpevent *event;
+
+ sctp_skb_for_each(skb, &sp->pd_lobby, tmp) {
+ event = sctp_skb2event(skb);
+ if (event->asoc == asoc) {
+ __skb_unlink(skb, &sp->pd_lobby);
+ __skb_queue_tail(&sk->sk_receive_queue,
+ skb);
+ }
+ }
+ }
}
+
return 0;
}
+/* Set the pd_mode on the socket and ulpq */
+static void sctp_ulpq_set_pd(struct sctp_ulpq *ulpq)
+{
+ struct sctp_sock *sp = sctp_sk(ulpq->asoc->base.sk);
+
+ atomic_inc(&sp->pd_mode);
+ ulpq->pd_mode = 1;
+}
+
/* Clear the pd_mode and restart any pending messages waiting for delivery. */
static int sctp_ulpq_clear_pd(struct sctp_ulpq *ulpq)
{
ulpq->pd_mode = 0;
- return sctp_clear_pd(ulpq->asoc->base.sk);
+ return sctp_clear_pd(ulpq->asoc->base.sk, ulpq->asoc);
}
/* If the SKB of 'event' is on a list, it is the first such member
* the association the cause of the partial delivery.
*/
- if (!sctp_sk(sk)->pd_mode) {
+ if (atomic_read(&sctp_sk(sk)->pd_mode) == 0) {
queue = &sk->sk_receive_queue;
- } else if (ulpq->pd_mode) {
- if (event->msg_flags & MSG_NOTIFICATION)
- queue = &sctp_sk(sk)->pd_lobby;
- else {
- clear_pd = event->msg_flags & MSG_EOR;
- queue = &sk->sk_receive_queue;
+ } else {
+ if (ulpq->pd_mode) {
+ /* If the association is in partial delivery, we
+ * need to finish delivering the partially processed
+ * packet before passing any other data. This is
+ * because we don't truly support stream interleaving.
+ */
+ if ((event->msg_flags & MSG_NOTIFICATION) ||
+ (SCTP_DATA_NOT_FRAG ==
+ (event->msg_flags & SCTP_DATA_FRAG_MASK)))
+ queue = &sctp_sk(sk)->pd_lobby;
+ else {
+ clear_pd = event->msg_flags & MSG_EOR;
+ queue = &sk->sk_receive_queue;
+ }
+ } else {
+ /*
+ * If fragment interleave is enabled, we
+ * can queue this to the recieve queue instead
+ * of the lobby.
+ */
+ if (sctp_sk(sk)->frag_interleave)
+ queue = &sk->sk_receive_queue;
+ else
+ queue = &sctp_sk(sk)->pd_lobby;
}
- } else
- queue = &sctp_sk(sk)->pd_lobby;
-
+ }
/* If we are harvesting multiple skbs they will be
* collected on a list.
break;
pos->next = pnext;
pos = pnext;
- };
+ }
event = sctp_skb2event(f_frag);
SCTP_INC_STATS(SCTP_MIB_REASMUSRMSGS);
struct sk_buff *first_frag = NULL;
__u32 ctsn, next_tsn;
struct sctp_ulpevent *retval = NULL;
+ struct sk_buff *pd_first = NULL;
+ struct sk_buff *pd_last = NULL;
+ size_t pd_len = 0;
+ struct sctp_association *asoc;
+ u32 pd_point;
/* Initialized to 0 just to avoid compiler warning message. Will
* never be used with this value. It is referenced only after it
* we expect to find the remaining middle fragments and the last
* fragment in order. If not, first_frag is reset to NULL and we
* start the next pass when we find another first fragment.
+ *
+ * There is a potential to do partial delivery if user sets
+ * SCTP_PARTIAL_DELIVERY_POINT option. Lets count some things here
+ * to see if can do PD.
*/
skb_queue_walk(&ulpq->reasm, pos) {
cevent = sctp_skb2event(pos);
switch (cevent->msg_flags & SCTP_DATA_FRAG_MASK) {
case SCTP_DATA_FIRST_FRAG:
+ /* If this "FIRST_FRAG" is the first
+ * element in the queue, then count it towards
+ * possible PD.
+ */
+ if (pos == ulpq->reasm.next) {
+ pd_first = pos;
+ pd_last = pos;
+ pd_len = pos->len;
+ } else {
+ pd_first = NULL;
+ pd_last = NULL;
+ pd_len = 0;
+ }
+
first_frag = pos;
next_tsn = ctsn + 1;
break;
case SCTP_DATA_MIDDLE_FRAG:
- if ((first_frag) && (ctsn == next_tsn))
+ if ((first_frag) && (ctsn == next_tsn)) {
next_tsn++;
- else
+ if (pd_first) {
+ pd_last = pos;
+ pd_len += pos->len;
+ }
+ } else
first_frag = NULL;
break;
else
first_frag = NULL;
break;
- };
+ }
+ }
+ asoc = ulpq->asoc;
+ if (pd_first) {
+ /* Make sure we can enter partial deliver.
+ * We can trigger partial delivery only if framgent
+ * interleave is set, or the socket is not already
+ * in partial delivery.
+ */
+ if (!sctp_sk(asoc->base.sk)->frag_interleave &&
+ atomic_read(&sctp_sk(asoc->base.sk)->pd_mode))
+ goto done;
+
+ cevent = sctp_skb2event(pd_first);
+ pd_point = sctp_sk(asoc->base.sk)->pd_point;
+ if (pd_point && pd_point <= pd_len) {
+ retval = sctp_make_reassembled_event(&ulpq->reasm,
+ pd_first,
+ pd_last);
+ if (retval)
+ sctp_ulpq_set_pd(ulpq);
+ }
}
done:
return retval;
goto done;
default:
return NULL;
- };
+ }
}
/* We have the reassembled event. There is no need to look
break;
default:
return NULL;
- };
+ }
}
/* We have the reassembled event. There is no need to look
{
struct sctp_ulpevent *event;
struct sctp_association *asoc;
+ struct sctp_sock *sp;
asoc = ulpq->asoc;
+ sp = sctp_sk(asoc->base.sk);
- /* Are we already in partial delivery mode? */
- if (!sctp_sk(asoc->base.sk)->pd_mode) {
+ /* If the association is already in Partial Delivery mode
+ * we have noting to do.
+ */
+ if (ulpq->pd_mode)
+ return;
+ /* If the user enabled fragment interleave socket option,
+ * multiple associations can enter partial delivery.
+ * Otherwise, we can only enter partial delivery if the
+ * socket is not in partial deliver mode.
+ */
+ if (sp->frag_interleave || atomic_read(&sp->pd_mode) == 0) {
/* Is partial delivery possible? */
event = sctp_ulpq_retrieve_first(ulpq);
/* Send event to the ULP. */
if (event) {
sctp_ulpq_tail_event(ulpq, event);
- sctp_sk(asoc->base.sk)->pd_mode = 1;
- ulpq->pd_mode = 1;
+ sctp_ulpq_set_pd(ulpq);
return;
}
}
return result;
}
+/*
+ * called from sock_recv_timestamp() if sock_flag(sk, SOCK_RCVTSTAMP)
+ */
+void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
+{
+ ktime_t kt = skb->tstamp;
+
+ if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) {
+ struct timeval tv;
+ /* Race occurred between timestamp enabling and packet
+ receiving. Fill in the current time for now. */
+ if (kt.tv64 == 0)
+ kt = ktime_get_real();
+ skb->tstamp = kt;
+ tv = ktime_to_timeval(kt);
+ put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, sizeof(tv), &tv);
+ } else {
+ struct timespec ts;
+ /* Race occurred between timestamp enabling and packet
+ receiving. Fill in the current time for now. */
+ if (kt.tv64 == 0)
+ kt = ktime_get_real();
+ skb->tstamp = kt;
+ ts = ktime_to_timespec(kt);
+ put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, sizeof(ts), &ts);
+ }
+}
+
+EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
+
static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size, int flags)
{
int err, fput_needed;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
- if(sock) {
+ if (sock) {
err = move_addr_to_kernel(umyaddr, addrlen, address);
if (err >= 0) {
err = security_socket_bind(sock,
return res;
}
-static int content_release(struct inode *inode, struct file *file)
-{
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct handle *han = m->private;
- kfree(han);
- m->private = NULL;
- return seq_release(inode, file);
-}
static const struct file_operations content_file_operations = {
.open = content_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = content_release,
+ .release = seq_release_private,
};
static ssize_t read_flush(struct file *file, char __user *buf,
rpc_delay(task, 3*HZ);
case -ETIMEDOUT:
task->tk_action = call_timeout;
+ if (task->tk_client->cl_discrtry)
+ xprt_disconnect(task->tk_xprt);
break;
case -ECONNREFUSED:
case -ENOTCONN:
out_retry:
req->rq_received = req->rq_private_buf.len = 0;
task->tk_status = 0;
+ if (task->tk_client->cl_discrtry)
+ xprt_disconnect(task->tk_xprt);
}
/*
desc.offset = sizeof(struct udphdr);
desc.count = skb->len - desc.offset;
- if (skb->ip_summed == CHECKSUM_UNNECESSARY)
+ if (skb_csum_unnecessary(skb))
goto no_checksum;
desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
dprintk("svc: recvfrom returned error %d\n", -err);
}
rqstp->rq_addrlen = sizeof(rqstp->rq_addr);
- if (skb->tstamp.off_sec == 0) {
- struct timeval tv;
-
- tv.tv_sec = xtime.tv_sec;
- tv.tv_usec = xtime.tv_nsec / NSEC_PER_USEC;
- skb_set_timestamp(skb, &tv);
+ if (skb->tstamp.tv64 == 0) {
+ skb->tstamp = ktime_get_real();
/* Don't enable netstamp, sunrpc doesn't
need that much accuracy */
}
- skb_get_timestamp(skb, &svsk->sk_sk->sk_stamp);
+ svsk->sk_sk->sk_stamp = skb->tstamp;
set_bit(SK_DATA, &svsk->sk_flags); /* there may be more data... */
/*
xprt_reset_majortimeo(req);
/* Turn off autodisconnect */
del_singleshot_timer_sync(&xprt->timer);
- } else {
- /* If all request bytes have been sent,
- * then we must be retransmitting this one */
- if (!req->rq_bytes_sent) {
- if (task->tk_client->cl_discrtry) {
- xprt_disconnect(xprt);
- task->tk_status = -ENOTCONN;
- return;
- }
- }
}
} else if (!req->rq_bytes_sent)
return;
int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type,
void *tlv_data, int tlv_data_size)
{
- struct tlv_desc *tlv = (struct tlv_desc *)buf->tail;
+ struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf);
int new_tlv_space = TLV_SPACE(tlv_data_size);
if (skb_tailroom(buf) < new_tlv_space) {
clone = skb_clone(buf, GFP_ATOMIC);
if (clone) {
- clone->nh.raw = clone->data;
+ skb_reset_network_header(clone);
dev = ((struct eth_bearer *)(tb_ptr->usr_handle))->dev;
clone->dev = dev;
dev->hard_header(clone, dev, ETH_P_TIPC,
if (likely(eb_ptr->bearer)) {
if (likely(!dev->promiscuity) ||
- !memcmp(buf->mac.raw,dev->dev_addr,ETH_ALEN) ||
- !memcmp(buf->mac.raw,dev->broadcast,ETH_ALEN)) {
+ !memcmp(skb_mac_header(buf), dev->dev_addr, ETH_ALEN) ||
+ !memcmp(skb_mac_header(buf), dev->broadcast, ETH_ALEN)) {
size = msg_size((struct tipc_msg *)buf->data);
skb_trim(buf, size);
if (likely(buf->len == size)) {
return -EDQUOT;
if (!eb_ptr->dev) {
eb_ptr->dev = dev;
- eb_ptr->tipc_packet_type.type = __constant_htons(ETH_P_TIPC);
+ eb_ptr->tipc_packet_type.type = htons(ETH_P_TIPC);
eb_ptr->tipc_packet_type.dev = dev;
eb_ptr->tipc_packet_type.func = recv_msg;
eb_ptr->tipc_packet_type.af_packet_priv = eb_ptr;
return 0;
skb_put(bundler, pad + size);
- memcpy(bundler->data + to_pos, buf->data, size);
+ skb_copy_to_linear_data_offset(bundler, to_pos, buf->data, size);
msg_set_size(bundler_msg, to_pos + size);
msg_set_msgcnt(bundler_msg, msg_msgcnt(bundler_msg) + 1);
dbg("Packed msg # %u(%u octets) into pos %u in buf(#%u)\n",
if (bundler) {
msg_init(&bundler_hdr, MSG_BUNDLER, OPEN_MSG,
TIPC_OK, INT_H_SIZE, l_ptr->addr);
- memcpy(bundler->data, (unchar *)&bundler_hdr,
- INT_H_SIZE);
+ skb_copy_to_linear_data(bundler, &bundler_hdr,
+ INT_H_SIZE);
skb_trim(bundler, INT_H_SIZE);
link_bundle_buf(l_ptr, bundler, buf);
buf = bundler;
if (!buf)
return -ENOMEM;
buf->next = NULL;
- memcpy(buf->data, (unchar *)&fragm_hdr, INT_H_SIZE);
+ skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE);
hsz = msg_hdr_sz(hdr);
- memcpy(buf->data + INT_H_SIZE, (unchar *)hdr, hsz);
+ skb_copy_to_linear_data_offset(buf, INT_H_SIZE, hdr, hsz);
msg_dbg(buf_msg(buf), ">BUILD>");
/* Chop up message: */
return -EFAULT;
}
} else
- memcpy(buf->data + fragm_crs, sect_crs, sz);
-
+ skb_copy_to_linear_data_offset(buf, fragm_crs,
+ sect_crs, sz);
sect_crs += sz;
sect_rest -= sz;
fragm_crs += sz;
buf->next = NULL;
prev->next = buf;
- memcpy(buf->data, (unchar *)&fragm_hdr, INT_H_SIZE);
+ skb_copy_to_linear_data(buf, &fragm_hdr, INT_H_SIZE);
fragm_crs = INT_H_SIZE;
fragm_rest = fragm_sz;
msg_dbg(buf_msg(buf)," >BUILD>");
buf = l_ptr->proto_msg_queue;
if (!buf)
return;
- memcpy(buf->data, (unchar *)msg, sizeof(l_ptr->proto_msg));
+ skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
return;
}
msg_set_timestamp(msg, jiffies_to_msecs(jiffies));
if (!buf)
return;
- memcpy(buf->data, (unchar *)msg, sizeof(l_ptr->proto_msg));
+ skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
msg_set_size(buf_msg(buf), msg_size);
if (tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr)) {
"unable to send tunnel msg\n");
return;
}
- memcpy(buf->data, (unchar *)tunnel_hdr, INT_H_SIZE);
- memcpy(buf->data + INT_H_SIZE, (unchar *)msg, length);
+ skb_copy_to_linear_data(buf, tunnel_hdr, INT_H_SIZE);
+ skb_copy_to_linear_data_offset(buf, INT_H_SIZE, msg, length);
dbg("%c->%c:", l_ptr->b_ptr->net_plane, tunnel->b_ptr->net_plane);
msg_dbg(buf_msg(buf), ">SEND>");
tipc_link_send_buf(tunnel, buf);
buf = buf_acquire(INT_H_SIZE);
if (buf) {
- memcpy(buf->data, (unchar *)&tunnel_hdr, INT_H_SIZE);
+ skb_copy_to_linear_data(buf, &tunnel_hdr, INT_H_SIZE);
msg_set_size(&tunnel_hdr, INT_H_SIZE);
dbg("%c->%c:", l_ptr->b_ptr->net_plane,
tunnel->b_ptr->net_plane);
"unable to send duplicate msg\n");
return;
}
- memcpy(outbuf->data, (unchar *)&tunnel_hdr, INT_H_SIZE);
- memcpy(outbuf->data + INT_H_SIZE, iter->data, length);
+ skb_copy_to_linear_data(outbuf, &tunnel_hdr, INT_H_SIZE);
+ skb_copy_to_linear_data_offset(outbuf, INT_H_SIZE, iter->data,
+ length);
dbg("%c->%c:", l_ptr->b_ptr->net_plane,
tunnel->b_ptr->net_plane);
msg_dbg(buf_msg(outbuf), ">SEND>");
eb = buf_acquire(size);
if (eb)
- memcpy(eb->data, (unchar *)msg, size);
+ skb_copy_to_linear_data(eb, msg, size);
return eb;
}
if (obuf == NULL) {
warn("Link unable to unbundle message(s)\n");
break;
- };
+ }
pos += align(msg_size(buf_msg(obuf)));
msg_dbg(buf_msg(obuf), " /");
tipc_net_route_msg(obuf);
goto exit;
}
msg_set_size(&fragm_hdr, fragm_sz + INT_H_SIZE);
- memcpy(fragm->data, (unchar *)&fragm_hdr, INT_H_SIZE);
- memcpy(fragm->data + INT_H_SIZE, crs, fragm_sz);
-
+ skb_copy_to_linear_data(fragm, &fragm_hdr, INT_H_SIZE);
+ skb_copy_to_linear_data_offset(fragm, INT_H_SIZE, crs,
+ fragm_sz);
/* Send queued messages first, if any: */
l_ptr->stats.sent_fragments++;
if (pbuf != NULL) {
pbuf->next = *pending;
*pending = pbuf;
- memcpy(pbuf->data, (unchar *)imsg, msg_data_sz(fragm));
-
+ skb_copy_to_linear_data(pbuf, imsg,
+ msg_data_sz(fragm));
/* Prepare buffer for subsequent fragments. */
set_long_msg_seqno(pbuf, long_msg_seq_no);
u32 fsz = get_fragm_size(pbuf);
u32 crs = ((msg_fragm_no(fragm) - 1) * fsz);
u32 exp_frags = get_expected_frags(pbuf) - 1;
- memcpy(pbuf->data + crs, msg_data(fragm), dsz);
+ skb_copy_to_linear_data_offset(pbuf, crs,
+ msg_data(fragm), dsz);
buf_discard(fbuf);
/* Is message complete? */
/*
* net/tipc/msg.h: Include file for TIPC message header routines
*
- * Copyright (c) 2000-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2000-2007, Ericsson AB
+ * Copyright (c) 2005-2007, Wind River Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
static inline void msg_set_bits(struct tipc_msg *m, u32 w,
u32 pos, u32 mask, u32 val)
{
- u32 word = msg_word(m,w) & ~(mask << pos);
- msg_set_word(m, w, (word |= (val << pos)));
+ val = (val & mask) << pos;
+ val = htonl(val);
+ mask = htonl(mask << pos);
+ m->hdr[w] &= ~mask;
+ m->hdr[w] |= val;
}
/*
*buf = buf_acquire(sz);
if (!(*buf))
return -ENOMEM;
- memcpy((*buf)->data, (unchar *)hdr, hsz);
+ skb_copy_to_linear_data(*buf, hdr, hsz);
for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
if (likely(usrmem))
res = !copy_from_user((*buf)->data + pos,
msg_sect[cnt].iov_base,
msg_sect[cnt].iov_len);
else
- memcpy((*buf)->data + pos, msg_sect[cnt].iov_base,
- msg_sect[cnt].iov_len);
+ skb_copy_to_linear_data_offset(*buf, pos,
+ msg_sect[cnt].iov_base,
+ msg_sect[cnt].iov_len);
pos += msg_sect[cnt].iov_len;
}
if (likely(res))
if (rep_buf) {
skb_push(rep_buf, hdr_space);
- rep_nlh = (struct nlmsghdr *)rep_buf->data;
+ rep_nlh = nlmsg_hdr(rep_buf);
memcpy(rep_nlh, req_nlh, hdr_space);
rep_nlh->nlmsg_len = rep_buf->len;
genlmsg_unicast(rep_buf, req_nlh->nlmsg_pid);
msg_set_size(rmsg, data_sz + hdr_sz);
msg_set_nametype(rmsg, msg_nametype(msg));
msg_set_nameinst(rmsg, msg_nameinst(msg));
- memcpy(rbuf->data + hdr_sz, msg_data(msg), data_sz);
+ skb_copy_to_linear_data_offset(rbuf, hdr_sz, msg_data(msg), data_sz);
/* send self-abort message when rejecting on a connected port */
if (msg_connected(msg)) {
return -ENOMEM;
skb_push(buf, hsz);
- memcpy(buf->data, (unchar *)msg, hsz);
+ skb_copy_to_linear_data(buf, msg, hsz);
destnode = msg_destnode(msg);
p_ptr->publ.congested = 1;
if (!tipc_port_congested(p_ptr)) {
if (skb_cow(buf, LONG_H_SIZE))
return -ENOMEM;
skb_push(buf, LONG_H_SIZE);
- memcpy(buf->data, (unchar *)msg, LONG_H_SIZE);
+ skb_copy_to_linear_data(buf, msg, LONG_H_SIZE);
msg_dbg(buf_msg(buf),"PREP:");
if (likely(destport || destnode)) {
p_ptr->sent++;
return -ENOMEM;
skb_push(buf, DIR_MSG_H_SIZE);
- memcpy(buf->data, (unchar *)msg, DIR_MSG_H_SIZE);
+ skb_copy_to_linear_data(buf, msg, DIR_MSG_H_SIZE);
msg_dbg(msg, "buf2port: ");
p_ptr->sent++;
if (dest->node == tipc_own_addr)
if (!err) {
buf_crs = (unsigned char *)(TIPC_SKB_CB(buf)->handle);
- sz = buf->tail - buf_crs;
+ sz = skb_tail_pointer(buf) - buf_crs;
needed = (buf_len - sz_copied);
sz_to_copy = (sz <= needed) ? sz : needed;
unix_attach_fds(siocb->scm, skb);
unix_get_secdata(siocb->scm, skb);
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
err = memcpy_fromiovec(skb_put(skb,len), msg->msg_iov, len);
if (err)
goto out_free;
skb_push(skb, 7);
skb->data[0] = 0;
skb->data[1] = NLPID_SNAP;
- memcpy(&skb->data[2], wanrouter_oui_ether,
- sizeof(wanrouter_oui_ether));
+ skb_copy_to_linear_data_offset(skb, 2, wanrouter_oui_ether,
+ sizeof(wanrouter_oui_ether));
*((unsigned short*)&skb->data[5]) = htons(type);
break;
skb->protocol = ethertype;
skb->pkt_type = PACKET_HOST; /* Physically point to point */
skb_pull(skb, cnt);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
return ethertype;
}
--- /dev/null
+config CFG80211
+ tristate "Improved wireless configuration API"
+
+config WIRELESS_EXT
+ bool "Wireless extensions"
+ default n
+ ---help---
+ This option enables the legacy wireless extensions
+ (wireless network interface configuration via ioctls.)
+
+ Wireless extensions will be replaced by cfg80211 and
+ will be required only by legacy drivers that implement
+ wireless extension handlers.
+
+ Say N (if you can) unless you know you need wireless
+ extensions for external modules.
--- /dev/null
+obj-$(CONFIG_WIRELESS_EXT) += wext.o
+obj-$(CONFIG_CFG80211) += cfg80211.o
+
+cfg80211-y += core.o sysfs.o
--- /dev/null
+/*
+ * This is the linux wireless configuration interface.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/nl80211.h>
+#include <linux/debugfs.h>
+#include <linux/notifier.h>
+#include <linux/device.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include <net/wireless.h>
+#include "core.h"
+#include "sysfs.h"
+
+/* name for sysfs, %d is appended */
+#define PHY_NAME "phy"
+
+MODULE_AUTHOR("Johannes Berg");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("wireless configuration support");
+
+/* RCU might be appropriate here since we usually
+ * only read the list, and that can happen quite
+ * often because we need to do it for each command */
+LIST_HEAD(cfg80211_drv_list);
+DEFINE_MUTEX(cfg80211_drv_mutex);
+static int wiphy_counter;
+
+/* for debugfs */
+static struct dentry *ieee80211_debugfs_dir;
+
+/* exported functions */
+
+struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
+{
+ struct cfg80211_registered_device *drv;
+ int alloc_size;
+
+ alloc_size = sizeof(*drv) + sizeof_priv;
+
+ drv = kzalloc(alloc_size, GFP_KERNEL);
+ if (!drv)
+ return NULL;
+
+ drv->ops = ops;
+
+ mutex_lock(&cfg80211_drv_mutex);
+
+ drv->idx = wiphy_counter;
+
+ /* now increase counter for the next device unless
+ * it has wrapped previously */
+ if (wiphy_counter >= 0)
+ wiphy_counter++;
+
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ if (unlikely(drv->idx < 0)) {
+ /* ugh, wrapped! */
+ kfree(drv);
+ return NULL;
+ }
+
+ /* give it a proper name */
+ snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
+ PHY_NAME "%d", drv->idx);
+
+ mutex_init(&drv->mtx);
+ mutex_init(&drv->devlist_mtx);
+ INIT_LIST_HEAD(&drv->netdev_list);
+
+ device_initialize(&drv->wiphy.dev);
+ drv->wiphy.dev.class = &ieee80211_class;
+ drv->wiphy.dev.platform_data = drv;
+
+ return &drv->wiphy;
+}
+EXPORT_SYMBOL(wiphy_new);
+
+int wiphy_register(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+ int res;
+
+ mutex_lock(&cfg80211_drv_mutex);
+
+ res = device_add(&drv->wiphy.dev);
+ if (res)
+ goto out_unlock;
+
+ list_add(&drv->list, &cfg80211_drv_list);
+
+ /* add to debugfs */
+ drv->wiphy.debugfsdir =
+ debugfs_create_dir(wiphy_name(&drv->wiphy),
+ ieee80211_debugfs_dir);
+
+ res = 0;
+out_unlock:
+ mutex_unlock(&cfg80211_drv_mutex);
+ return res;
+}
+EXPORT_SYMBOL(wiphy_register);
+
+void wiphy_unregister(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+ /* protect the device list */
+ mutex_lock(&cfg80211_drv_mutex);
+
+ BUG_ON(!list_empty(&drv->netdev_list));
+
+ /*
+ * Try to grab drv->mtx. If a command is still in progress,
+ * hopefully the driver will refuse it since it's tearing
+ * down the device already. We wait for this command to complete
+ * before unlinking the item from the list.
+ * Note: as codified by the BUG_ON above we cannot get here if
+ * a virtual interface is still associated. Hence, we can only
+ * get to lock contention here if userspace issues a command
+ * that identified the hardware by wiphy index.
+ */
+ mutex_lock(&drv->mtx);
+ /* unlock again before freeing */
+ mutex_unlock(&drv->mtx);
+
+ list_del(&drv->list);
+ device_del(&drv->wiphy.dev);
+ debugfs_remove(drv->wiphy.debugfsdir);
+
+ mutex_unlock(&cfg80211_drv_mutex);
+}
+EXPORT_SYMBOL(wiphy_unregister);
+
+void cfg80211_dev_free(struct cfg80211_registered_device *drv)
+{
+ mutex_destroy(&drv->mtx);
+ mutex_destroy(&drv->devlist_mtx);
+ kfree(drv);
+}
+
+void wiphy_free(struct wiphy *wiphy)
+{
+ put_device(&wiphy->dev);
+}
+EXPORT_SYMBOL(wiphy_free);
+
+static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
+ unsigned long state,
+ void *ndev)
+{
+ struct net_device *dev = ndev;
+ struct cfg80211_registered_device *rdev;
+
+ if (!dev->ieee80211_ptr)
+ return 0;
+
+ rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+
+ switch (state) {
+ case NETDEV_REGISTER:
+ mutex_lock(&rdev->devlist_mtx);
+ list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
+ if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
+ "phy80211")) {
+ printk(KERN_ERR "wireless: failed to add phy80211 "
+ "symlink to netdev!\n");
+ }
+ dev->ieee80211_ptr->netdev = dev;
+ mutex_unlock(&rdev->devlist_mtx);
+ break;
+ case NETDEV_UNREGISTER:
+ mutex_lock(&rdev->devlist_mtx);
+ if (!list_empty(&dev->ieee80211_ptr->list)) {
+ sysfs_remove_link(&dev->dev.kobj, "phy80211");
+ list_del_init(&dev->ieee80211_ptr->list);
+ }
+ mutex_unlock(&rdev->devlist_mtx);
+ break;
+ }
+
+ return 0;
+}
+
+static struct notifier_block cfg80211_netdev_notifier = {
+ .notifier_call = cfg80211_netdev_notifier_call,
+};
+
+static int cfg80211_init(void)
+{
+ int err = wiphy_sysfs_init();
+ if (err)
+ goto out_fail_sysfs;
+
+ err = register_netdevice_notifier(&cfg80211_netdev_notifier);
+ if (err)
+ goto out_fail_notifier;
+
+ ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
+
+ return 0;
+
+out_fail_notifier:
+ wiphy_sysfs_exit();
+out_fail_sysfs:
+ return err;
+}
+module_init(cfg80211_init);
+
+static void cfg80211_exit(void)
+{
+ debugfs_remove(ieee80211_debugfs_dir);
+ unregister_netdevice_notifier(&cfg80211_netdev_notifier);
+ wiphy_sysfs_exit();
+}
+module_exit(cfg80211_exit);
--- /dev/null
+/*
+ * Wireless configuration interface internals.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+#ifndef __NET_WIRELESS_CORE_H
+#define __NET_WIRELESS_CORE_H
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <net/genetlink.h>
+#include <net/wireless.h>
+#include <net/cfg80211.h>
+
+struct cfg80211_registered_device {
+ struct cfg80211_ops *ops;
+ struct list_head list;
+ /* we hold this mutex during any call so that
+ * we cannot do multiple calls at once, and also
+ * to avoid the deregister call to proceed while
+ * any call is in progress */
+ struct mutex mtx;
+
+ /* wiphy index, internal only */
+ int idx;
+
+ /* associate netdev list */
+ struct mutex devlist_mtx;
+ struct list_head netdev_list;
+
+ /* must be last because of the way we do wiphy_priv(),
+ * and it should at least be aligned to NETDEV_ALIGN */
+ struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+static inline
+struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return container_of(wiphy, struct cfg80211_registered_device, wiphy);
+}
+
+extern struct mutex cfg80211_drv_mutex;
+extern struct list_head cfg80211_drv_list;
+
+/* free object */
+extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
+
+#endif /* __NET_WIRELESS_CORE_H */
--- /dev/null
+/*
+ * This file provides /sys/class/ieee80211/<wiphy name>/
+ * and some default attributes.
+ *
+ * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "sysfs.h"
+#include "core.h"
+
+static inline struct cfg80211_registered_device *dev_to_rdev(
+ struct device *dev)
+{
+ return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
+}
+
+static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
+}
+
+static ssize_t _show_permaddr(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
+
+ return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
+}
+
+static struct device_attribute ieee80211_dev_attrs[] = {
+ __ATTR(index, S_IRUGO, _show_index, NULL),
+ __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
+ {}
+};
+
+static void wiphy_dev_release(struct device *dev)
+{
+ struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+
+ cfg80211_dev_free(rdev);
+}
+
+static int wiphy_uevent(struct device *dev, char **envp,
+ int num_envp, char *buf, int size)
+{
+ /* TODO, we probably need stuff here */
+ return 0;
+}
+
+struct class ieee80211_class = {
+ .name = "ieee80211",
+ .owner = THIS_MODULE,
+ .dev_release = wiphy_dev_release,
+ .dev_attrs = ieee80211_dev_attrs,
+#ifdef CONFIG_HOTPLUG
+ .dev_uevent = wiphy_uevent,
+#endif
+};
+
+int wiphy_sysfs_init(void)
+{
+ return class_register(&ieee80211_class);
+}
+
+void wiphy_sysfs_exit(void)
+{
+ class_unregister(&ieee80211_class);
+}
--- /dev/null
+#ifndef __WIRELESS_SYSFS_H
+#define __WIRELESS_SYSFS_H
+
+extern int wiphy_sysfs_init(void);
+extern void wiphy_sysfs_exit(void);
+
+extern struct class ieee80211_class;
+
+#endif /* __WIRELESS_SYSFS_H */
#include <linux/wireless.h> /* Pretty obvious */
#include <net/iw_handler.h> /* New driver API */
#include <net/netlink.h>
+#include <net/wext.h>
#include <asm/uaccess.h> /* copy_to_user() */
-/**************************** CONSTANTS ****************************/
-
-/* Debugging stuff */
-#undef WE_IOCTL_DEBUG /* Debug IOCTL API */
-#undef WE_RTNETLINK_DEBUG /* Debug RtNetlink API */
-#undef WE_EVENT_DEBUG /* Debug Event dispatcher */
-#undef WE_SPY_DEBUG /* Debug enhanced spy support */
-
-/* Options */
-//CONFIG_NET_WIRELESS_RTNETLINK /* Wireless requests over RtNetlink */
-#define WE_EVENT_RTNETLINK /* Propagate events using RtNetlink */
-#define WE_SET_EVENT /* Generate an event on some set commands */
-
/************************* GLOBAL VARIABLES *************************/
/*
* You should not use global variables, because of re-entrancy.
.max_tokens = sizeof(struct iw_pmksa),
},
};
-static const unsigned standard_ioctl_num = (sizeof(standard_ioctl) /
- sizeof(struct iw_ioctl_description));
+static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl);
/*
* Meta-data about all the additional standard Wireless Extension events
.max_tokens = sizeof(struct iw_pmkid_cand),
},
};
-static const unsigned standard_event_num = (sizeof(standard_event) /
- sizeof(struct iw_ioctl_description));
+static const unsigned standard_event_num = ARRAY_SIZE(standard_event);
/* Size (in bytes) of the various private data types */
static const char iw_priv_type_size[] = {
/* ---------------------------------------------------------------- */
/*
* Return the driver handler associated with a specific Wireless Extension.
- * Called from various place, so make sure it remains efficient.
*/
-static inline iw_handler get_handler(struct net_device *dev,
- unsigned int cmd)
+static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
{
/* Don't "optimise" the following variable, it will crash */
unsigned int index; /* *MUST* be unsigned */
/* Check if we have some wireless handlers defined */
- if(dev->wireless_handlers == NULL)
+ if (dev->wireless_handlers == NULL)
return NULL;
/* Try as a standard command */
index = cmd - SIOCIWFIRST;
- if(index < dev->wireless_handlers->num_standard)
+ if (index < dev->wireless_handlers->num_standard)
return dev->wireless_handlers->standard[index];
/* Try as a private command */
index = cmd - SIOCIWFIRSTPRIV;
- if(index < dev->wireless_handlers->num_private)
+ if (index < dev->wireless_handlers->num_private)
return dev->wireless_handlers->private[index];
/* Not found */
/*
* Get statistics out of the driver
*/
-static inline struct iw_statistics *get_wireless_stats(struct net_device *dev)
+static struct iw_statistics *get_wireless_stats(struct net_device *dev)
{
/* New location */
- if((dev->wireless_handlers != NULL) &&
+ if ((dev->wireless_handlers != NULL) &&
(dev->wireless_handlers->get_wireless_stats != NULL))
return dev->wireless_handlers->get_wireless_stats(dev);
/* Not found */
- return (struct iw_statistics *) NULL;
+ return NULL;
}
/* ---------------------------------------------------------------- */
* netif_running(dev) test. I'm open on that one...
* Hopefully, the driver will remember to do a commit in "open()" ;-)
*/
-static inline int call_commit_handler(struct net_device * dev)
+static int call_commit_handler(struct net_device *dev)
{
- if((netif_running(dev)) &&
- (dev->wireless_handlers->standard[0] != NULL)) {
+ if ((netif_running(dev)) &&
+ (dev->wireless_handlers->standard[0] != NULL))
/* Call the commit handler on the driver */
return dev->wireless_handlers->standard[0](dev, NULL,
NULL, NULL);
- } else
+ else
return 0; /* Command completed successfully */
}
struct iw_statistics *stats;
stats = get_wireless_stats(dev);
- if (stats != (struct iw_statistics *) NULL) {
-
+ if (stats) {
/* Copy statistics to extra */
memcpy(extra, stats, sizeof(struct iw_statistics));
wrqu->data.length = sizeof(struct iw_statistics);
/* Check if we need to clear the updated flag */
- if(wrqu->data.flags != 0)
+ if (wrqu->data.flags != 0)
stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
return 0;
} else
char * extra)
{
/* Check if the driver has something to export */
- if((dev->wireless_handlers->num_private_args == 0) ||
+ if ((dev->wireless_handlers->num_private_args == 0) ||
(dev->wireless_handlers->private_args == NULL))
return -EOPNOTSUPP;
/* Check if there is enough buffer up there */
- if(wrqu->data.length < dev->wireless_handlers->num_private_args) {
+ if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
/* User space can't know in advance how large the buffer
* needs to be. Give it a hint, so that we can support
* any size buffer we want somewhat efficiently... */
/*
* Print one entry (line) of /proc/net/wireless
*/
-static __inline__ void wireless_seq_printf_stats(struct seq_file *seq,
- struct net_device *dev)
+static void wireless_seq_printf_stats(struct seq_file *seq,
+ struct net_device *dev)
{
/* Get stats from the driver */
struct iw_statistics *stats = get_wireless_stats(dev);
return 0;
}
-static struct seq_operations wireless_seq_ops = {
+static const struct seq_operations wireless_seq_ops = {
.start = dev_seq_start,
.next = dev_seq_next,
.stop = dev_seq_stop,
.release = seq_release,
};
-int __init wireless_proc_init(void)
+int __init wext_proc_init(void)
{
/* Create /proc/net/wireless entry */
if (!proc_net_fops_create("wireless", S_IRUGO, &wireless_seq_fops))
int ret = -EINVAL;
/* Get the description of the IOCTL */
- if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
+ if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
return -EOPNOTSUPP;
descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Found standard handler for 0x%04X\n",
- ifr->ifr_name, cmd);
- printk(KERN_DEBUG "%s (WE) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif /* WE_IOCTL_DEBUG */
-
/* Prepare the call */
info.cmd = cmd;
info.flags = 0;
/* Check if we have a pointer to user space data or not */
- if(descr->header_type != IW_HEADER_TYPE_POINT) {
+ if (descr->header_type != IW_HEADER_TYPE_POINT) {
/* No extra arguments. Trivial to handle */
ret = handler(dev, &info, &(iwr->u), NULL);
-#ifdef WE_SET_EVENT
/* Generate an event to notify listeners of the change */
- if((descr->flags & IW_DESCR_FLAG_EVENT) &&
+ if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
((ret == 0) || (ret == -EIWCOMMIT)))
wireless_send_event(dev, cmd, &(iwr->u), NULL);
-#endif /* WE_SET_EVENT */
} else {
char * extra;
int extra_size;
iwr->u.data.length -= essid_compat;
/* Check what user space is giving us */
- if(IW_IS_SET(cmd)) {
+ if (IW_IS_SET(cmd)) {
/* Check NULL pointer */
- if((iwr->u.data.pointer == NULL) &&
+ if ((iwr->u.data.pointer == NULL) &&
(iwr->u.data.length != 0))
return -EFAULT;
/* Check if number of token fits within bounds */
- if(iwr->u.data.length > descr->max_tokens)
+ if (iwr->u.data.length > descr->max_tokens)
return -E2BIG;
- if(iwr->u.data.length < descr->min_tokens)
+ if (iwr->u.data.length < descr->min_tokens)
return -EINVAL;
} else {
/* Check NULL pointer */
- if(iwr->u.data.pointer == NULL)
+ if (iwr->u.data.pointer == NULL)
return -EFAULT;
/* Save user space buffer size for checking */
user_length = iwr->u.data.length;
* implied by the test at the end. */
/* Support for very large requests */
- if((descr->flags & IW_DESCR_FLAG_NOMAX) &&
+ if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
(user_length > descr->max_tokens)) {
/* Allow userspace to GET more than max so
* we can support any size GET requests.
}
}
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Malloc %d bytes\n",
- dev->name, extra_size);
-#endif /* WE_IOCTL_DEBUG */
-
/* Create the kernel buffer */
/* kzalloc ensures NULL-termination for essid_compat */
extra = kzalloc(extra_size, GFP_KERNEL);
- if (extra == NULL) {
+ if (extra == NULL)
return -ENOMEM;
- }
/* If it is a SET, get all the extra data in here */
- if(IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
+ if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
err = copy_from_user(extra, iwr->u.data.pointer,
iwr->u.data.length *
descr->token_size);
kfree(extra);
return -EFAULT;
}
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Got %d bytes\n",
- dev->name,
- iwr->u.data.length * descr->token_size);
-#endif /* WE_IOCTL_DEBUG */
}
/* Call the handler */
/* If we have something to return to the user */
if (!ret && IW_IS_GET(cmd)) {
/* Check if there is enough buffer up there */
- if(user_length < iwr->u.data.length) {
+ if (user_length < iwr->u.data.length) {
kfree(extra);
return -E2BIG;
}
descr->token_size);
if (err)
ret = -EFAULT;
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Wrote %d bytes\n",
- dev->name,
- iwr->u.data.length * descr->token_size);
-#endif /* WE_IOCTL_DEBUG */
}
-#ifdef WE_SET_EVENT
/* Generate an event to notify listeners of the change */
- if((descr->flags & IW_DESCR_FLAG_EVENT) &&
+ if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
((ret == 0) || (ret == -EIWCOMMIT))) {
- if(descr->flags & IW_DESCR_FLAG_RESTRICT)
+ if (descr->flags & IW_DESCR_FLAG_RESTRICT)
/* If the event is restricted, don't
* export the payload */
wireless_send_event(dev, cmd, &(iwr->u), NULL);
wireless_send_event(dev, cmd, &(iwr->u),
extra);
}
-#endif /* WE_SET_EVENT */
/* Cleanup - I told you it wasn't that long ;-) */
kfree(extra);
}
/* Call commit handler if needed and defined */
- if(ret == -EIWCOMMIT)
+ if (ret == -EIWCOMMIT)
ret = call_commit_handler(dev);
/* Here, we will generate the appropriate event if needed */
* a iw_handler but process it in your ioctl handler (i.e. use the
* old driver API).
*/
-static inline int ioctl_private_call(struct net_device * dev,
- struct ifreq * ifr,
- unsigned int cmd,
- iw_handler handler)
+static int ioctl_private_call(struct net_device *dev, struct ifreq *ifr,
+ unsigned int cmd, iw_handler handler)
{
struct iwreq * iwr = (struct iwreq *) ifr;
const struct iw_priv_args * descr = NULL;
int ret = -EINVAL;
/* Get the description of the IOCTL */
- for(i = 0; i < dev->wireless_handlers->num_private_args; i++)
- if(cmd == dev->wireless_handlers->private_args[i].cmd) {
+ for (i = 0; i < dev->wireless_handlers->num_private_args; i++)
+ if (cmd == dev->wireless_handlers->private_args[i].cmd) {
descr = &(dev->wireless_handlers->private_args[i]);
break;
}
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Found private handler for 0x%04X\n",
- ifr->ifr_name, cmd);
- if(descr) {
- printk(KERN_DEBUG "%s (WE) : Name %s, set %X, get %X\n",
- dev->name, descr->name,
- descr->set_args, descr->get_args);
- }
-#endif /* WE_IOCTL_DEBUG */
-
/* Compute the size of the set/get arguments */
- if(descr != NULL) {
- if(IW_IS_SET(cmd)) {
+ if (descr != NULL) {
+ if (IW_IS_SET(cmd)) {
int offset = 0; /* For sub-ioctls */
/* Check for sub-ioctl handler */
- if(descr->name[0] == '\0')
+ if (descr->name[0] == '\0')
/* Reserve one int for sub-ioctl index */
offset = sizeof(__u32);
extra_size = get_priv_size(descr->set_args);
/* Does it fits in iwr ? */
- if((descr->set_args & IW_PRIV_SIZE_FIXED) &&
+ if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
((extra_size + offset) <= IFNAMSIZ))
extra_size = 0;
} else {
extra_size = get_priv_size(descr->get_args);
/* Does it fits in iwr ? */
- if((descr->get_args & IW_PRIV_SIZE_FIXED) &&
+ if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
(extra_size <= IFNAMSIZ))
extra_size = 0;
}
info.flags = 0;
/* Check if we have a pointer to user space data or not. */
- if(extra_size == 0) {
+ if (extra_size == 0) {
/* No extra arguments. Trivial to handle */
ret = handler(dev, &info, &(iwr->u), (char *) &(iwr->u));
} else {
int err;
/* Check what user space is giving us */
- if(IW_IS_SET(cmd)) {
+ if (IW_IS_SET(cmd)) {
/* Check NULL pointer */
- if((iwr->u.data.pointer == NULL) &&
+ if ((iwr->u.data.pointer == NULL) &&
(iwr->u.data.length != 0))
return -EFAULT;
/* Does it fits within bounds ? */
- if(iwr->u.data.length > (descr->set_args &
+ if (iwr->u.data.length > (descr->set_args &
IW_PRIV_SIZE_MASK))
return -E2BIG;
- } else {
- /* Check NULL pointer */
- if(iwr->u.data.pointer == NULL)
- return -EFAULT;
- }
-
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Malloc %d bytes\n",
- dev->name, extra_size);
-#endif /* WE_IOCTL_DEBUG */
+ } else if (iwr->u.data.pointer == NULL)
+ return -EFAULT;
/* Always allocate for max space. Easier, and won't last
* long... */
extra = kmalloc(extra_size, GFP_KERNEL);
- if (extra == NULL) {
+ if (extra == NULL)
return -ENOMEM;
- }
/* If it is a SET, get all the extra data in here */
- if(IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
+ if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
err = copy_from_user(extra, iwr->u.data.pointer,
extra_size);
if (err) {
kfree(extra);
return -EFAULT;
}
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Got %d elem\n",
- dev->name, iwr->u.data.length);
-#endif /* WE_IOCTL_DEBUG */
}
/* Call the handler */
extra_size);
if (err)
ret = -EFAULT;
-#ifdef WE_IOCTL_DEBUG
- printk(KERN_DEBUG "%s (WE) : Wrote %d elem\n",
- dev->name, iwr->u.data.length);
-#endif /* WE_IOCTL_DEBUG */
}
/* Cleanup - I told you it wasn't that long ;-) */
/* Call commit handler if needed and defined */
- if(ret == -EIWCOMMIT)
+ if (ret == -EIWCOMMIT)
ret = call_commit_handler(dev);
return ret;
/* ---------------------------------------------------------------- */
/*
- * Main IOCTl dispatcher. Called from the main networking code
- * (dev_ioctl() in net/core/dev.c).
+ * Main IOCTl dispatcher.
* Check the type of IOCTL and call the appropriate wrapper...
*/
-int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
+static int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
{
struct net_device *dev;
iw_handler handler;
/* A bunch of special cases, then the generic case...
* Note that 'cmd' is already filtered in dev_ioctl() with
* (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */
- switch(cmd)
- {
- case SIOCGIWSTATS:
- /* Get Wireless Stats */
- return ioctl_standard_call(dev,
- ifr,
- cmd,
- &iw_handler_get_iwstats);
-
- case SIOCGIWPRIV:
- /* Check if we have some wireless handlers defined */
- if(dev->wireless_handlers != NULL) {
- /* We export to user space the definition of
- * the private handler ourselves */
- return ioctl_standard_call(dev,
- ifr,
- cmd,
- &iw_handler_get_private);
- }
- // ## Fall-through for old API ##
- default:
- /* Generic IOCTL */
- /* Basic check */
- if (!netif_device_present(dev))
- return -ENODEV;
- /* New driver API : try to find the handler */
- handler = get_handler(dev, cmd);
- if(handler != NULL) {
- /* Standard and private are not the same */
- if(cmd < SIOCIWFIRSTPRIV)
- return ioctl_standard_call(dev,
- ifr,
- cmd,
- handler);
- else
- return ioctl_private_call(dev,
- ifr,
- cmd,
- handler);
- }
- /* Old driver API : call driver ioctl handler */
- if (dev->do_ioctl) {
- return dev->do_ioctl(dev, ifr, cmd);
- }
- return -EOPNOTSUPP;
- }
- /* Not reached */
- return -EINVAL;
-}
-
-/********************** RTNETLINK REQUEST API **********************/
-/*
- * The alternate user space API to configure all those Wireless Extensions
- * is through RtNetlink.
- * This API support only the new driver API (iw_handler).
- *
- * This RtNetlink API use the same query/reply model as the ioctl API.
- * Maximum effort has been done to fit in the RtNetlink model, and
- * we support both RtNetlink Set and RtNelink Get operations.
- * On the other hand, we don't offer Dump operations because of the
- * following reasons :
- * o Large number of parameters, most optional
- * o Large size of some parameters (> 100 bytes)
- * o Each parameters need to be extracted from hardware
- * o Scan requests can take seconds and disable network activity.
- * Because of this high cost/overhead, we want to return only the
- * parameters the user application is really interested in.
- * We could offer partial Dump using the IW_DESCR_FLAG_DUMP flag.
- *
- * The API uses the standard RtNetlink socket. When the RtNetlink code
- * find a IFLA_WIRELESS field in a RtNetlink SET_LINK request,
- * it calls here.
- */
-
-#ifdef CONFIG_NET_WIRELESS_RTNETLINK
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension GET handler.
- * We do various checks and call the handler with the proper args.
- */
-static int rtnetlink_standard_get(struct net_device * dev,
- struct iw_event * request,
- int request_len,
- iw_handler handler,
- char ** p_buf,
- int * p_len)
-{
- const struct iw_ioctl_description * descr = NULL;
- unsigned int cmd;
- union iwreq_data * wrqu;
- int hdr_len;
- struct iw_request_info info;
- char * buffer = NULL;
- int buffer_size = 0;
- int ret = -EINVAL;
-
- /* Get the description of the Request */
- cmd = request->cmd;
- if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
- return -EOPNOTSUPP;
- descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Found standard handler for 0x%04X\n",
- dev->name, cmd);
- printk(KERN_DEBUG "%s (WE.r) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Check if wrqu is complete */
- hdr_len = event_type_size[descr->header_type];
- if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG
- "%s (WE.r) : Wireless request too short (%d)\n",
- dev->name, request_len);
-#endif /* WE_RTNETLINK_DEBUG */
- return -EINVAL;
- }
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have extra data in the reply or not */
- if(descr->header_type != IW_HEADER_TYPE_POINT) {
-
- /* Create the kernel buffer that we will return.
- * It's at an offset to match the TYPE_POINT case... */
- buffer_size = request_len + IW_EV_POINT_OFF;
- buffer = kmalloc(buffer_size, GFP_KERNEL);
- if (buffer == NULL) {
- return -ENOMEM;
- }
- /* Copy event data */
- memcpy(buffer + IW_EV_POINT_OFF, request, request_len);
- /* Use our own copy of wrqu */
- wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF
- + IW_EV_LCP_PK_LEN);
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, wrqu, NULL);
-
- } else {
- union iwreq_data wrqu_point;
- char * extra = NULL;
- int extra_size = 0;
+ if (cmd == SIOCGIWSTATS)
+ return ioctl_standard_call(dev, ifr, cmd,
+ &iw_handler_get_iwstats);
- /* Get a temp copy of wrqu (skip pointer) */
- memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
- ((char *) request) + IW_EV_LCP_PK_LEN,
- IW_EV_POINT_LEN - IW_EV_LCP_PK_LEN);
-
- /* Calculate space needed by arguments. Always allocate
- * for max space. Easier, and won't last long... */
- extra_size = descr->max_tokens * descr->token_size;
- /* Support for very large requests */
- if((descr->flags & IW_DESCR_FLAG_NOMAX) &&
- (wrqu_point.data.length > descr->max_tokens))
- extra_size = (wrqu_point.data.length
- * descr->token_size);
- buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF;
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n",
- dev->name, extra_size, buffer_size);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Create the kernel buffer that we will return */
- buffer = kmalloc(buffer_size, GFP_KERNEL);
- if (buffer == NULL) {
- return -ENOMEM;
- }
-
- /* Put wrqu in the right place (just before extra).
- * Leave space for IWE header and dummy pointer...
- * Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned.
- */
- memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF,
- ((char *) &wrqu_point) + IW_EV_POINT_OFF,
- IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
- wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN);
-
- /* Extra comes logically after that. Offset +12 bytes. */
- extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN;
-
- /* Call the handler */
- ret = handler(dev, &info, wrqu, extra);
-
- /* Calculate real returned length */
- extra_size = (wrqu->data.length * descr->token_size);
- /* Re-adjust reply size */
- request->len = extra_size + IW_EV_POINT_PK_LEN;
-
- /* Put the iwe header where it should, i.e. scrap the
- * dummy pointer. */
- memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN);
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Check if there is enough buffer up there */
- if(wrqu_point.data.length < wrqu->data.length)
- ret = -E2BIG;
- }
-
- /* Return the buffer to the caller */
- if (!ret) {
- *p_buf = buffer;
- *p_len = request->len;
- } else {
- /* Cleanup */
- if(buffer)
- kfree(buffer);
- }
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension SET handler.
- * We do various checks and call the handler with the proper args.
- */
-static inline int rtnetlink_standard_set(struct net_device * dev,
- struct iw_event * request,
- int request_len,
- iw_handler handler)
-{
- const struct iw_ioctl_description * descr = NULL;
- unsigned int cmd;
- union iwreq_data * wrqu;
- union iwreq_data wrqu_point;
- int hdr_len;
- char * extra = NULL;
- int extra_size = 0;
- struct iw_request_info info;
- int ret = -EINVAL;
-
- /* Get the description of the Request */
- cmd = request->cmd;
- if((cmd - SIOCIWFIRST) >= standard_ioctl_num)
- return -EOPNOTSUPP;
- descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Found standard SET handler for 0x%04X\n",
- dev->name, cmd);
- printk(KERN_DEBUG "%s (WE.r) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Extract fixed header from request. This is properly aligned. */
- wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN);
-
- /* Check if wrqu is complete */
- hdr_len = event_type_pk_size[descr->header_type];
- if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG
- "%s (WE.r) : Wireless request too short (%d)\n",
- dev->name, request_len);
-#endif /* WE_RTNETLINK_DEBUG */
- return -EINVAL;
- }
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have extra data in the request or not */
- if(descr->header_type != IW_HEADER_TYPE_POINT) {
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, wrqu, NULL);
-
- } else {
- int extra_len;
-
- /* Put wrqu in the right place (skip pointer) */
- memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
- wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
- /* Don't forget about the event code... */
- wrqu = &wrqu_point;
-
- /* Check if number of token fits within bounds */
- if(wrqu_point.data.length > descr->max_tokens)
- return -E2BIG;
- if(wrqu_point.data.length < descr->min_tokens)
- return -EINVAL;
-
- /* Real length of payload */
- extra_len = wrqu_point.data.length * descr->token_size;
-
- /* Check if request is self consistent */
- if((request_len - hdr_len) < extra_len) {
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Wireless request data too short (%d)\n",
- dev->name, extra_size);
-#endif /* WE_RTNETLINK_DEBUG */
- return -EINVAL;
- }
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes\n",
- dev->name, extra_size);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Always allocate for max space. Easier, and won't last
- * long... */
- extra_size = descr->max_tokens * descr->token_size;
- extra = kmalloc(extra_size, GFP_KERNEL);
- if (extra == NULL)
- return -ENOMEM;
-
- /* Copy extra in aligned buffer */
- memcpy(extra, ((char *) request) + hdr_len, extra_len);
-
- /* Call the handler */
- ret = handler(dev, &info, &wrqu_point, extra);
- }
-
-#ifdef WE_SET_EVENT
- /* Generate an event to notify listeners of the change */
- if((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT))) {
- if(descr->flags & IW_DESCR_FLAG_RESTRICT)
- /* If the event is restricted, don't
- * export the payload */
- wireless_send_event(dev, cmd, wrqu, NULL);
- else
- wireless_send_event(dev, cmd, wrqu, extra);
- }
-#endif /* WE_SET_EVENT */
-
- /* Cleanup - I told you it wasn't that long ;-) */
- if(extra)
- kfree(extra);
-
- /* Call commit handler if needed and defined */
- if(ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension GET handler.
- * Same as above...
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static inline int rtnetlink_private_get(struct net_device * dev,
- struct iw_event * request,
- int request_len,
- iw_handler handler,
- char ** p_buf,
- int * p_len)
-{
- const struct iw_priv_args * descr = NULL;
- unsigned int cmd;
- union iwreq_data * wrqu;
- int hdr_len;
- struct iw_request_info info;
- int extra_size = 0;
- int i;
- char * buffer = NULL;
- int buffer_size = 0;
- int ret = -EINVAL;
-
- /* Get the description of the Request */
- cmd = request->cmd;
- for(i = 0; i < dev->wireless_handlers->num_private_args; i++)
- if(cmd == dev->wireless_handlers->private_args[i].cmd) {
- descr = &(dev->wireless_handlers->private_args[i]);
- break;
- }
- if(descr == NULL)
- return -EOPNOTSUPP;
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Found private handler for 0x%04X\n",
- dev->name, cmd);
- printk(KERN_DEBUG "%s (WE.r) : Name %s, set %X, get %X\n",
- dev->name, descr->name, descr->set_args, descr->get_args);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Compute the max size of the get arguments */
- extra_size = get_priv_size(descr->get_args);
-
- /* Does it fits in wrqu ? */
- if((descr->get_args & IW_PRIV_SIZE_FIXED) &&
- (extra_size <= IFNAMSIZ)) {
- hdr_len = extra_size;
- extra_size = 0;
- } else {
- hdr_len = IW_EV_POINT_PK_LEN;
- }
-
- /* Check if wrqu is complete */
- if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG
- "%s (WE.r) : Wireless request too short (%d)\n",
- dev->name, request_len);
-#endif /* WE_RTNETLINK_DEBUG */
- return -EINVAL;
- }
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have a pointer to user space data or not. */
- if(extra_size == 0) {
-
- /* Create the kernel buffer that we will return.
- * It's at an offset to match the TYPE_POINT case... */
- buffer_size = request_len + IW_EV_POINT_OFF;
- buffer = kmalloc(buffer_size, GFP_KERNEL);
- if (buffer == NULL) {
- return -ENOMEM;
- }
- /* Copy event data */
- memcpy(buffer + IW_EV_POINT_OFF, request, request_len);
- /* Use our own copy of wrqu */
- wrqu = (union iwreq_data *) (buffer + IW_EV_POINT_OFF
- + IW_EV_LCP_PK_LEN);
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, wrqu, (char *) wrqu);
-
- } else {
- char * extra;
-
- /* Buffer for full reply */
- buffer_size = extra_size + IW_EV_POINT_PK_LEN + IW_EV_POINT_OFF;
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes (%d bytes)\n",
- dev->name, extra_size, buffer_size);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Create the kernel buffer that we will return */
- buffer = kmalloc(buffer_size, GFP_KERNEL);
- if (buffer == NULL) {
- return -ENOMEM;
- }
-
- /* Put wrqu in the right place (just before extra).
- * Leave space for IWE header and dummy pointer...
- * Note that IW_EV_LCP_PK_LEN==4 bytes, so it's still aligned.
- */
- memcpy(buffer + IW_EV_LCP_PK_LEN + IW_EV_POINT_OFF,
- ((char *) request) + IW_EV_LCP_PK_LEN,
- IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
- wrqu = (union iwreq_data *) (buffer + IW_EV_LCP_PK_LEN);
-
- /* Extra comes logically after that. Offset +12 bytes. */
- extra = buffer + IW_EV_POINT_OFF + IW_EV_POINT_PK_LEN;
-
- /* Call the handler */
- ret = handler(dev, &info, wrqu, extra);
-
- /* Adjust for the actual length if it's variable,
- * avoid leaking kernel bits outside. */
- if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
- extra_size = adjust_priv_size(descr->get_args, wrqu);
- /* Re-adjust reply size */
- request->len = extra_size + IW_EV_POINT_PK_LEN;
-
- /* Put the iwe header where it should, i.e. scrap the
- * dummy pointer. */
- memcpy(buffer + IW_EV_POINT_OFF, request, IW_EV_LCP_PK_LEN);
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Reply 0x%04X, hdr_len %d, tokens %d, extra_size %d, buffer_size %d\n", dev->name, cmd, hdr_len, wrqu->data.length, extra_size, buffer_size);
-#endif /* WE_RTNETLINK_DEBUG */
- }
-
- /* Return the buffer to the caller */
- if (!ret) {
- *p_buf = buffer;
- *p_len = request->len;
- } else {
- /* Cleanup */
- if(buffer)
- kfree(buffer);
- }
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension SET handler.
- * Same as above...
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static inline int rtnetlink_private_set(struct net_device * dev,
- struct iw_event * request,
- int request_len,
- iw_handler handler)
-{
- const struct iw_priv_args * descr = NULL;
- unsigned int cmd;
- union iwreq_data * wrqu;
- union iwreq_data wrqu_point;
- int hdr_len;
- char * extra = NULL;
- int extra_size = 0;
- int offset = 0; /* For sub-ioctls */
- struct iw_request_info info;
- int i;
- int ret = -EINVAL;
-
- /* Get the description of the Request */
- cmd = request->cmd;
- for(i = 0; i < dev->wireless_handlers->num_private_args; i++)
- if(cmd == dev->wireless_handlers->private_args[i].cmd) {
- descr = &(dev->wireless_handlers->private_args[i]);
- break;
- }
- if(descr == NULL)
- return -EOPNOTSUPP;
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Found private handler for 0x%04X\n",
- ifr->ifr_name, cmd);
- printk(KERN_DEBUG "%s (WE.r) : Name %s, set %X, get %X\n",
- dev->name, descr->name, descr->set_args, descr->get_args);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Compute the size of the set arguments */
- /* Check for sub-ioctl handler */
- if(descr->name[0] == '\0')
- /* Reserve one int for sub-ioctl index */
- offset = sizeof(__u32);
-
- /* Size of set arguments */
- extra_size = get_priv_size(descr->set_args);
-
- /* Does it fits in wrqu ? */
- if((descr->set_args & IW_PRIV_SIZE_FIXED) &&
- (extra_size <= IFNAMSIZ)) {
- hdr_len = IW_EV_LCP_PK_LEN + extra_size;
- extra_size = 0;
- } else {
- hdr_len = IW_EV_POINT_PK_LEN;
- }
-
- /* Extract fixed header from request. This is properly aligned. */
- wrqu = (union iwreq_data *) (((char *) request) + IW_EV_LCP_PK_LEN);
-
- /* Check if wrqu is complete */
- if(request_len < hdr_len) {
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG
- "%s (WE.r) : Wireless request too short (%d)\n",
- dev->name, request_len);
-#endif /* WE_RTNETLINK_DEBUG */
- return -EINVAL;
- }
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have a pointer to user space data or not. */
- if(extra_size == 0) {
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, wrqu, (char *) wrqu);
-
- } else {
- int extra_len;
-
- /* Put wrqu in the right place (skip pointer) */
- memcpy(((char *) &wrqu_point) + IW_EV_POINT_OFF,
- wrqu, IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
-
- /* Does it fits within bounds ? */
- if(wrqu_point.data.length > (descr->set_args &
- IW_PRIV_SIZE_MASK))
- return -E2BIG;
-
- /* Real length of payload */
- extra_len = adjust_priv_size(descr->set_args, &wrqu_point);
-
- /* Check if request is self consistent */
- if((request_len - hdr_len) < extra_len) {
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Wireless request data too short (%d)\n",
- dev->name, extra_size);
-#endif /* WE_RTNETLINK_DEBUG */
- return -EINVAL;
- }
-
-#ifdef WE_RTNETLINK_DEBUG
- printk(KERN_DEBUG "%s (WE.r) : Malloc %d bytes\n",
- dev->name, extra_size);
-#endif /* WE_RTNETLINK_DEBUG */
-
- /* Always allocate for max space. Easier, and won't last
- * long... */
- extra = kmalloc(extra_size, GFP_KERNEL);
- if (extra == NULL)
- return -ENOMEM;
-
- /* Copy extra in aligned buffer */
- memcpy(extra, ((char *) request) + hdr_len, extra_len);
-
- /* Call the handler */
- ret = handler(dev, &info, &wrqu_point, extra);
-
- /* Cleanup - I told you it wasn't that long ;-) */
- kfree(extra);
- }
-
- /* Call commit handler if needed and defined */
- if(ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main RtNetlink dispatcher. Called from the main networking code
- * (do_getlink() in net/core/rtnetlink.c).
- * Check the type of Request and call the appropriate wrapper...
- */
-int wireless_rtnetlink_get(struct net_device * dev,
- char * data,
- int len,
- char ** p_buf,
- int * p_len)
-{
- struct iw_event * request = (struct iw_event *) data;
- iw_handler handler;
-
- /* Check length */
- if(len < IW_EV_LCP_PK_LEN) {
- printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n",
- dev->name, len);
- return -EINVAL;
- }
-
- /* ReCheck length (len may have padding) */
- if(request->len > len) {
- printk(KERN_DEBUG "%s (WE.r) : RtNetlink request len invalid (%d-%d)\n",
- dev->name, request->len, len);
- return -EINVAL;
- }
-
- /* Only accept GET requests in here */
- if(!IW_IS_GET(request->cmd))
- return -EOPNOTSUPP;
-
- /* If command is `get the encoding parameters', check if
- * the user has the right to do it */
- if (request->cmd == SIOCGIWENCODE ||
- request->cmd == SIOCGIWENCODEEXT) {
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- }
-
- /* Special cases */
- if(request->cmd == SIOCGIWSTATS)
- /* Get Wireless Stats */
- return rtnetlink_standard_get(dev,
- request,
- request->len,
- &iw_handler_get_iwstats,
- p_buf, p_len);
- if(request->cmd == SIOCGIWPRIV) {
- /* Check if we have some wireless handlers defined */
- if(dev->wireless_handlers == NULL)
- return -EOPNOTSUPP;
- /* Get Wireless Stats */
- return rtnetlink_standard_get(dev,
- request,
- request->len,
- &iw_handler_get_private,
- p_buf, p_len);
- }
+ if (cmd == SIOCGIWPRIV && dev->wireless_handlers)
+ return ioctl_standard_call(dev, ifr, cmd,
+ &iw_handler_get_private);
/* Basic check */
if (!netif_device_present(dev))
return -ENODEV;
- /* Try to find the handler */
- handler = get_handler(dev, request->cmd);
- if(handler != NULL) {
+ /* New driver API : try to find the handler */
+ handler = get_handler(dev, cmd);
+ if (handler) {
/* Standard and private are not the same */
- if(request->cmd < SIOCIWFIRSTPRIV)
- return rtnetlink_standard_get(dev,
- request,
- request->len,
- handler,
- p_buf, p_len);
+ if (cmd < SIOCIWFIRSTPRIV)
+ return ioctl_standard_call(dev, ifr, cmd, handler);
else
- return rtnetlink_private_get(dev,
- request,
- request->len,
- handler,
- p_buf, p_len);
+ return ioctl_private_call(dev, ifr, cmd, handler);
}
-
+ /* Old driver API : call driver ioctl handler */
+ if (dev->do_ioctl)
+ return dev->do_ioctl(dev, ifr, cmd);
return -EOPNOTSUPP;
}
-/* ---------------------------------------------------------------- */
-/*
- * Main RtNetlink dispatcher. Called from the main networking code
- * (do_setlink() in net/core/rtnetlink.c).
- * Check the type of Request and call the appropriate wrapper...
- */
-int wireless_rtnetlink_set(struct net_device * dev,
- char * data,
- int len)
+/* entry point from dev ioctl */
+int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
+ void __user *arg)
{
- struct iw_event * request = (struct iw_event *) data;
- iw_handler handler;
-
- /* Check length */
- if(len < IW_EV_LCP_PK_LEN) {
- printk(KERN_DEBUG "%s (WE.r) : RtNetlink request too short (%d)\n",
- dev->name, len);
- return -EINVAL;
- }
-
- /* ReCheck length (len may have padding) */
- if(request->len > len) {
- printk(KERN_DEBUG "%s (WE.r) : RtNetlink request len invalid (%d-%d)\n",
- dev->name, request->len, len);
- return -EINVAL;
- }
-
- /* Only accept SET requests in here */
- if(!IW_IS_SET(request->cmd))
- return -EOPNOTSUPP;
-
- /* Basic check */
- if (!netif_device_present(dev))
- return -ENODEV;
+ int ret;
- /* New driver API : try to find the handler */
- handler = get_handler(dev, request->cmd);
- if(handler != NULL) {
- /* Standard and private are not the same */
- if(request->cmd < SIOCIWFIRSTPRIV)
- return rtnetlink_standard_set(dev,
- request,
- request->len,
- handler);
- else
- return rtnetlink_private_set(dev,
- request,
- request->len,
- handler);
- }
-
- return -EOPNOTSUPP;
+ /* If command is `set a parameter', or
+ * `get the encoding parameters', check if
+ * the user has the right to do it */
+ if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT)
+ && !capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ dev_load(ifr->ifr_name);
+ rtnl_lock();
+ ret = wireless_process_ioctl(ifr, cmd);
+ rtnl_unlock();
+ if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct ifreq)))
+ return -EFAULT;
+ return ret;
}
-#endif /* CONFIG_NET_WIRELESS_RTNETLINK */
-
/************************* EVENT PROCESSING *************************/
/*
* Most often, the event will be propagated through rtnetlink
*/
-#ifdef WE_EVENT_RTNETLINK
/* ---------------------------------------------------------------- */
/*
* Locking...
* current wireless config. Dumping the wireless config is far too
* expensive (for each parameter, the driver need to query the hardware).
*/
-static inline int rtnetlink_fill_iwinfo(struct sk_buff * skb,
- struct net_device * dev,
- int type,
- char * event,
- int event_len)
+static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev,
+ int type, char *event, int event_len)
{
struct ifinfomsg *r;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(*r));
r = NLMSG_DATA(nlh);
/* Add the wireless events in the netlink packet */
RTA_PUT(skb, IFLA_WIRELESS, event_len, event);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
* Andrzej Krzysztofowicz mandated that I used a IFLA_XXX field
* within a RTM_NEWLINK event.
*/
-static inline void rtmsg_iwinfo(struct net_device * dev,
- char * event,
- int event_len)
+static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
{
struct sk_buff *skb;
int size = NLMSG_GOODSIZE;
tasklet_schedule(&wireless_nlevent_tasklet);
}
-#endif /* WE_EVENT_RTNETLINK */
-
/* ---------------------------------------------------------------- */
/*
* Main event dispatcher. Called from other parts and drivers.
unsigned cmd_index; /* *MUST* be unsigned */
/* Get the description of the Event */
- if(cmd <= SIOCIWLAST) {
+ if (cmd <= SIOCIWLAST) {
cmd_index = cmd - SIOCIWFIRST;
- if(cmd_index < standard_ioctl_num)
+ if (cmd_index < standard_ioctl_num)
descr = &(standard_ioctl[cmd_index]);
} else {
cmd_index = cmd - IWEVFIRST;
- if(cmd_index < standard_event_num)
+ if (cmd_index < standard_event_num)
descr = &(standard_event[cmd_index]);
}
/* Don't accept unknown events */
- if(descr == NULL) {
+ if (descr == NULL) {
/* Note : we don't return an error to the driver, because
* the driver would not know what to do about it. It can't
* return an error to the user, because the event is not
dev->name, cmd);
return;
}
-#ifdef WE_EVENT_DEBUG
- printk(KERN_DEBUG "%s (WE) : Got event 0x%04X\n",
- dev->name, cmd);
- printk(KERN_DEBUG "%s (WE) : Header type : %d, Token type : %d, size : %d, token : %d\n", dev->name, descr->header_type, descr->token_type, descr->token_size, descr->max_tokens);
-#endif /* WE_EVENT_DEBUG */
/* Check extra parameters and set extra_len */
- if(descr->header_type == IW_HEADER_TYPE_POINT) {
+ if (descr->header_type == IW_HEADER_TYPE_POINT) {
/* Check if number of token fits within bounds */
- if(wrqu->data.length > descr->max_tokens) {
+ if (wrqu->data.length > descr->max_tokens) {
printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
return;
}
- if(wrqu->data.length < descr->min_tokens) {
+ if (wrqu->data.length < descr->min_tokens) {
printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
return;
}
/* Calculate extra_len - extra is NULL for restricted events */
- if(extra != NULL)
+ if (extra != NULL)
extra_len = wrqu->data.length * descr->token_size;
/* Always at an offset in wrqu */
wrqu_off = IW_EV_POINT_OFF;
-#ifdef WE_EVENT_DEBUG
- printk(KERN_DEBUG "%s (WE) : Event 0x%04X, tokens %d, extra_len %d\n", dev->name, cmd, wrqu->data.length, extra_len);
-#endif /* WE_EVENT_DEBUG */
}
/* Total length of the event */
hdr_len = event_type_size[descr->header_type];
event_len = hdr_len + extra_len;
-#ifdef WE_EVENT_DEBUG
- printk(KERN_DEBUG "%s (WE) : Event 0x%04X, hdr_len %d, wrqu_off %d, event_len %d\n", dev->name, cmd, hdr_len, wrqu_off, event_len);
-#endif /* WE_EVENT_DEBUG */
-
/* Create temporary buffer to hold the event */
event = kmalloc(event_len, GFP_ATOMIC);
- if(event == NULL)
+ if (event == NULL)
return;
/* Fill event */
event->len = event_len;
event->cmd = cmd;
memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
- if(extra != NULL)
+ if (extra)
memcpy(((char *) event) + hdr_len, extra, extra_len);
-#ifdef WE_EVENT_RTNETLINK
/* Send via the RtNetlink event channel */
rtmsg_iwinfo(dev, (char *) event, event_len);
-#endif /* WE_EVENT_RTNETLINK */
/* Cleanup */
kfree(event);
return; /* Always success, I guess ;-) */
}
+EXPORT_SYMBOL(wireless_send_event);
/********************** ENHANCED IWSPY SUPPORT **********************/
/*
* Because this is called on the Rx path via wireless_spy_update(),
* we want it to be efficient...
*/
-static inline struct iw_spy_data * get_spydata(struct net_device *dev)
+static inline struct iw_spy_data *get_spydata(struct net_device *dev)
{
/* This is the new way */
- if(dev->wireless_data)
- return(dev->wireless_data->spy_data);
+ if (dev->wireless_data)
+ return dev->wireless_data->spy_data;
return NULL;
}
struct sockaddr * address = (struct sockaddr *) extra;
/* Make sure driver is not buggy or using the old API */
- if(!spydata)
+ if (!spydata)
return -EOPNOTSUPP;
/* Disable spy collection while we copy the addresses.
smp_wmb();
/* Are there are addresses to copy? */
- if(wrqu->data.length > 0) {
+ if (wrqu->data.length > 0) {
int i;
/* Copy addresses */
- for(i = 0; i < wrqu->data.length; i++)
+ for (i = 0; i < wrqu->data.length; i++)
memcpy(spydata->spy_address[i], address[i].sa_data,
ETH_ALEN);
/* Reset stats */
memset(spydata->spy_stat, 0,
sizeof(struct iw_quality) * IW_MAX_SPY);
-
-#ifdef WE_SPY_DEBUG
- printk(KERN_DEBUG "iw_handler_set_spy() : wireless_data %p, spydata %p, num %d\n", dev->wireless_data, spydata, wrqu->data.length);
- for (i = 0; i < wrqu->data.length; i++)
- printk(KERN_DEBUG
- "%02X:%02X:%02X:%02X:%02X:%02X \n",
- spydata->spy_address[i][0],
- spydata->spy_address[i][1],
- spydata->spy_address[i][2],
- spydata->spy_address[i][3],
- spydata->spy_address[i][4],
- spydata->spy_address[i][5]);
-#endif /* WE_SPY_DEBUG */
}
/* Make sure above is updated before re-enabling */
return 0;
}
+EXPORT_SYMBOL(iw_handler_set_spy);
/*------------------------------------------------------------------*/
/*
int i;
/* Make sure driver is not buggy or using the old API */
- if(!spydata)
+ if (!spydata)
return -EOPNOTSUPP;
wrqu->data.length = spydata->spy_number;
/* Copy addresses. */
- for(i = 0; i < spydata->spy_number; i++) {
+ for (i = 0; i < spydata->spy_number; i++) {
memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
address[i].sa_family = AF_UNIX;
}
/* Copy stats to the user buffer (just after). */
- if(spydata->spy_number > 0)
+ if (spydata->spy_number > 0)
memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
spydata->spy_stat,
sizeof(struct iw_quality) * spydata->spy_number);
/* Reset updated flags. */
- for(i = 0; i < spydata->spy_number; i++)
+ for (i = 0; i < spydata->spy_number; i++)
spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
return 0;
}
+EXPORT_SYMBOL(iw_handler_get_spy);
/*------------------------------------------------------------------*/
/*
struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
/* Make sure driver is not buggy or using the old API */
- if(!spydata)
+ if (!spydata)
return -EOPNOTSUPP;
/* Just do it */
/* Clear flag */
memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
-#ifdef WE_SPY_DEBUG
- printk(KERN_DEBUG "iw_handler_set_thrspy() : low %d ; high %d\n", spydata->spy_thr_low.level, spydata->spy_thr_high.level);
-#endif /* WE_SPY_DEBUG */
-
return 0;
}
+EXPORT_SYMBOL(iw_handler_set_thrspy);
/*------------------------------------------------------------------*/
/*
struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
/* Make sure driver is not buggy or using the old API */
- if(!spydata)
+ if (!spydata)
return -EOPNOTSUPP;
/* Just do it */
return 0;
}
+EXPORT_SYMBOL(iw_handler_get_thrspy);
/*------------------------------------------------------------------*/
/*
memcpy(&(threshold.low), &(spydata->spy_thr_low),
2 * sizeof(struct iw_quality));
-#ifdef WE_SPY_DEBUG
- printk(KERN_DEBUG "iw_send_thrspy_event() : address %02X:%02X:%02X:%02X:%02X:%02X, level %d, up = %d\n",
- threshold.addr.sa_data[0],
- threshold.addr.sa_data[1],
- threshold.addr.sa_data[2],
- threshold.addr.sa_data[3],
- threshold.addr.sa_data[4],
- threshold.addr.sa_data[5], threshold.qual.level);
-#endif /* WE_SPY_DEBUG */
-
/* Send event to user space */
wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
}
int match = -1;
/* Make sure driver is not buggy or using the old API */
- if(!spydata)
+ if (!spydata)
return;
-#ifdef WE_SPY_DEBUG
- printk(KERN_DEBUG "wireless_spy_update() : wireless_data %p, spydata %p, address %02X:%02X:%02X:%02X:%02X:%02X\n", dev->wireless_data, spydata, address[0], address[1], address[2], address[3], address[4], address[5]);
-#endif /* WE_SPY_DEBUG */
-
/* Update all records that match */
- for(i = 0; i < spydata->spy_number; i++)
- if(!compare_ether_addr(address, spydata->spy_address[i])) {
+ for (i = 0; i < spydata->spy_number; i++)
+ if (!compare_ether_addr(address, spydata->spy_address[i])) {
memcpy(&(spydata->spy_stat[i]), wstats,
sizeof(struct iw_quality));
match = i;
* To avoid event storms, we have a simple hysteresis : we generate
* event only when we go under the low threshold or above the
* high threshold. */
- if(match >= 0) {
- if(spydata->spy_thr_under[match]) {
- if(wstats->level > spydata->spy_thr_high.level) {
+ if (match >= 0) {
+ if (spydata->spy_thr_under[match]) {
+ if (wstats->level > spydata->spy_thr_high.level) {
spydata->spy_thr_under[match] = 0;
iw_send_thrspy_event(dev, spydata,
address, wstats);
}
} else {
- if(wstats->level < spydata->spy_thr_low.level) {
+ if (wstats->level < spydata->spy_thr_low.level) {
spydata->spy_thr_under[match] = 1;
iw_send_thrspy_event(dev, spydata,
address, wstats);
}
}
}
-
-EXPORT_SYMBOL(iw_handler_get_spy);
-EXPORT_SYMBOL(iw_handler_get_thrspy);
-EXPORT_SYMBOL(iw_handler_set_spy);
-EXPORT_SYMBOL(iw_handler_set_thrspy);
-EXPORT_SYMBOL(wireless_send_event);
EXPORT_SYMBOL(wireless_spy_update);
* Incoming Call User Data.
*/
if (skb->len >= 0) {
- memcpy(makex25->calluserdata.cuddata, skb->data, skb->len);
+ skb_copy_from_linear_data(skb, makex25->calluserdata.cuddata, skb->len);
makex25->calluserdata.cudlength = skb->len;
}
*/
SOCK_DEBUG(sk, "x25_sendmsg: Copying user data\n");
- asmptr = skb->h.raw = skb_put(skb, len);
+ skb_reset_transport_header(skb);
+ skb_put(skb, len);
- rc = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+ rc = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
if (rc)
goto out_kfree_skb;
}
}
- skb->h.raw = skb->data;
-
+ skb_reset_transport_header(skb);
copied = skb->len;
if (copied > size) {
rc = sock_get_timestamp(sk,
(struct timeval __user *)argp);
break;
+ case SIOCGSTAMPNS:
+ rc = -EINVAL;
+ if (sk)
+ rc = sock_get_timestampns(sk,
+ (struct timespec __user *)argp);
+ break;
case SIOCGIFADDR:
case SIOCSIFADDR:
case SIOCGIFDSTADDR:
rc = compat_sock_get_timestamp(sk,
(struct timeval __user*)argp);
break;
+ case SIOCGSTAMPNS:
+ rc = -EINVAL;
+ if (sk)
+ rc = compat_sock_get_timestampns(sk,
+ (struct timespec __user*)argp);
+ break;
case SIOCGIFADDR:
case SIOCSIFADDR:
case SIOCGIFDSTADDR:
if ((sk = x25_find_socket(lci, nb)) != NULL) {
int queued = 1;
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
bh_lock_sock(sk);
if (!sock_owned_by_user(sk)) {
queued = x25_process_rx_frame(sk, skb);
{
unsigned char *dptr;
- skb->nh.raw = skb->data;
+ skb_reset_network_header(skb);
switch (nb->dev->type) {
case ARPHRD_X25:
skb_queue_tail(&x25->fragment_queue, skb);
- skbn->h.raw = skbn->data;
+ skb_reset_transport_header(skbn);
skbo = skb_dequeue(&x25->fragment_queue);
- memcpy(skb_put(skbn, skbo->len), skbo->data, skbo->len);
+ skb_copy_from_linear_data(skbo, skb_put(skbn, skbo->len),
+ skbo->len);
kfree_skb(skbo);
while ((skbo =
skb_dequeue(&x25->fragment_queue)) != NULL) {
skb_pull(skbo, (x25->neighbour->extended) ?
X25_EXT_MIN_LEN : X25_STD_MIN_LEN);
- memcpy(skb_put(skbn, skbo->len), skbo->data, skbo->len);
+ skb_copy_from_linear_data(skbo,
+ skb_put(skbn, skbo->len),
+ skbo->len);
kfree_skb(skbo);
}
* Copy any Call User Data.
*/
if (skb->len >= 0) {
- memcpy(x25->calluserdata.cuddata, skb->data,
- skb->len);
+ skb_copy_from_linear_data(skb,
+ x25->calluserdata.cuddata,
+ skb->len);
x25->calluserdata.cudlength = skb->len;
}
if (!sock_flag(sk, SOCK_DEAD))
if (skb->len - header_len > max_len) {
/* Save a copy of the Header */
- memcpy(header, skb->data, header_len);
+ skb_copy_from_linear_data(skb, header, header_len);
skb_pull(skb, header_len);
frontlen = skb_headroom(skb);
len = max_len > skb->len ? skb->len : max_len;
/* Copy the user data */
- memcpy(skb_put(skbn, len), skb->data, len);
+ skb_copy_from_linear_data(skb, skb_put(skbn, len), len);
skb_pull(skb, len);
/* Duplicate the Header */
skb_push(skbn, header_len);
- memcpy(skbn->data, header, header_len);
+ skb_copy_to_linear_data(skbn, header, header_len);
if (skb->len > 0) {
if (x25->neighbour->extended)
int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
int offset, int len, icv_update_fn_t icv_update)
{
- int start = skb_headlen(skb);
- int i, copy = start - offset;
+ int end = skb_headlen(skb);
+ int i, copy = end - offset;
int err;
struct scatterlist sg;
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
+ BUG_TRAP(len >= 0);
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = offset + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
copy = len;
sg.page = frag->page;
- sg.offset = frag->page_offset + offset-start;
+ sg.offset = frag->page_offset;
sg.length = copy;
err = icv_update(desc, &sg, copy);
return 0;
offset += copy;
}
- start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
+ BUG_TRAP(len >= 0);
- end = start + list->len;
+ end = offset + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
- err = skb_icv_walk(list, desc, offset-start,
+ err = skb_icv_walk(list, desc, 0,
copy, icv_update);
if (unlikely(err))
return err;
return 0;
offset += copy;
}
- start = end;
}
}
BUG_ON(len);
#if defined(CONFIG_INET_ESP) || defined(CONFIG_INET_ESP_MODULE) || defined(CONFIG_INET6_ESP) || defined(CONFIG_INET6_ESP_MODULE)
-/* Looking generic it is not used in another places. */
-
-int
-skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
-{
- int start = skb_headlen(skb);
- int i, copy = start - offset;
- int elt = 0;
-
- if (copy > 0) {
- if (copy > len)
- copy = len;
- sg[elt].page = virt_to_page(skb->data + offset);
- sg[elt].offset = (unsigned long)(skb->data + offset) % PAGE_SIZE;
- sg[elt].length = copy;
- elt++;
- if ((len -= copy) == 0)
- return elt;
- offset += copy;
- }
-
- for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- int end;
-
- BUG_TRAP(start <= offset + len);
-
- end = start + skb_shinfo(skb)->frags[i].size;
- if ((copy = end - offset) > 0) {
- skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
-
- if (copy > len)
- copy = len;
- sg[elt].page = frag->page;
- sg[elt].offset = frag->page_offset+offset-start;
- sg[elt].length = copy;
- elt++;
- if (!(len -= copy))
- return elt;
- offset += copy;
- }
- start = end;
- }
-
- if (skb_shinfo(skb)->frag_list) {
- struct sk_buff *list = skb_shinfo(skb)->frag_list;
-
- for (; list; list = list->next) {
- int end;
-
- BUG_TRAP(start <= offset + len);
-
- end = start + list->len;
- if ((copy = end - offset) > 0) {
- if (copy > len)
- copy = len;
- elt += skb_to_sgvec(list, sg+elt, offset - start, copy);
- if ((len -= copy) == 0)
- return elt;
- offset += copy;
- }
- start = end;
- }
- }
- BUG_ON(len);
- return elt;
-}
-EXPORT_SYMBOL_GPL(skb_to_sgvec);
-
-/* Check that skb data bits are writable. If they are not, copy data
- * to newly created private area. If "tailbits" is given, make sure that
- * tailbits bytes beyond current end of skb are writable.
- *
- * Returns amount of elements of scatterlist to load for subsequent
- * transformations and pointer to writable trailer skb.
- */
-
-int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
-{
- int copyflag;
- int elt;
- struct sk_buff *skb1, **skb_p;
-
- /* If skb is cloned or its head is paged, reallocate
- * head pulling out all the pages (pages are considered not writable
- * at the moment even if they are anonymous).
- */
- if ((skb_cloned(skb) || skb_shinfo(skb)->nr_frags) &&
- __pskb_pull_tail(skb, skb_pagelen(skb)-skb_headlen(skb)) == NULL)
- return -ENOMEM;
-
- /* Easy case. Most of packets will go this way. */
- if (!skb_shinfo(skb)->frag_list) {
- /* A little of trouble, not enough of space for trailer.
- * This should not happen, when stack is tuned to generate
- * good frames. OK, on miss we reallocate and reserve even more
- * space, 128 bytes is fair. */
-
- if (skb_tailroom(skb) < tailbits &&
- pskb_expand_head(skb, 0, tailbits-skb_tailroom(skb)+128, GFP_ATOMIC))
- return -ENOMEM;
-
- /* Voila! */
- *trailer = skb;
- return 1;
- }
-
- /* Misery. We are in troubles, going to mincer fragments... */
-
- elt = 1;
- skb_p = &skb_shinfo(skb)->frag_list;
- copyflag = 0;
-
- while ((skb1 = *skb_p) != NULL) {
- int ntail = 0;
-
- /* The fragment is partially pulled by someone,
- * this can happen on input. Copy it and everything
- * after it. */
-
- if (skb_shared(skb1))
- copyflag = 1;
-
- /* If the skb is the last, worry about trailer. */
-
- if (skb1->next == NULL && tailbits) {
- if (skb_shinfo(skb1)->nr_frags ||
- skb_shinfo(skb1)->frag_list ||
- skb_tailroom(skb1) < tailbits)
- ntail = tailbits + 128;
- }
-
- if (copyflag ||
- skb_cloned(skb1) ||
- ntail ||
- skb_shinfo(skb1)->nr_frags ||
- skb_shinfo(skb1)->frag_list) {
- struct sk_buff *skb2;
-
- /* Fuck, we are miserable poor guys... */
- if (ntail == 0)
- skb2 = skb_copy(skb1, GFP_ATOMIC);
- else
- skb2 = skb_copy_expand(skb1,
- skb_headroom(skb1),
- ntail,
- GFP_ATOMIC);
- if (unlikely(skb2 == NULL))
- return -ENOMEM;
-
- if (skb1->sk)
- skb_set_owner_w(skb2, skb1->sk);
-
- /* Looking around. Are we still alive?
- * OK, link new skb, drop old one */
-
- skb2->next = skb1->next;
- *skb_p = skb2;
- kfree_skb(skb1);
- skb1 = skb2;
- }
- elt++;
- *trailer = skb1;
- skb_p = &skb1->next;
- }
-
- return elt;
-}
-EXPORT_SYMBOL_GPL(skb_cow_data);
-
void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len)
{
if (tail != skb) {
case IPPROTO_COMP:
if (!pskb_may_pull(skb, sizeof(struct ip_comp_hdr)))
return -EINVAL;
- *spi = htonl(ntohs(*(__be16*)(skb->h.raw + 2)));
+ *spi = htonl(ntohs(*(__be16*)(skb_transport_header(skb) + 2)));
*seq = 0;
return 0;
default:
if (!pskb_may_pull(skb, 16))
return -EINVAL;
- *spi = *(__be32*)(skb->h.raw + offset);
- *seq = *(__be32*)(skb->h.raw + offset_seq);
+ *spi = *(__be32*)(skb_transport_header(skb) + offset);
+ *seq = *(__be32*)(skb_transport_header(skb) + offset_seq);
return 0;
}
EXPORT_SYMBOL(xfrm_parse_spi);
static void xfrm_policy_timer(unsigned long data)
{
struct xfrm_policy *xp = (struct xfrm_policy*)data;
- unsigned long now = (unsigned long)xtime.tv_sec;
+ unsigned long now = get_seconds();
long next = LONG_MAX;
int warn = 0;
int dir;
}
policy->index = delpol ? delpol->index : xfrm_gen_index(policy->type, dir);
hlist_add_head(&policy->byidx, xfrm_policy_byidx+idx_hash(policy->index));
- policy->curlft.add_time = (unsigned long)xtime.tv_sec;
+ policy->curlft.add_time = get_seconds();
policy->curlft.use_time = 0;
if (!mod_timer(&policy->timer, jiffies + HZ))
xfrm_pol_hold(policy);
return FLOW_DIR_OUT;
case XFRM_POLICY_FWD:
return FLOW_DIR_FWD;
- };
+ }
}
static struct xfrm_policy *xfrm_sk_policy_lookup(struct sock *sk, int dir, struct flowi *fl)
old_pol = sk->sk_policy[dir];
sk->sk_policy[dir] = pol;
if (pol) {
- pol->curlft.add_time = (unsigned long)xtime.tv_sec;
+ pol->curlft.add_time = get_seconds();
pol->index = xfrm_gen_index(pol->type, XFRM_POLICY_MAX+dir);
__xfrm_policy_link(pol, XFRM_POLICY_MAX+dir);
}
return 0;
family = dst_orig->ops->family;
- policy->curlft.use_time = (unsigned long)xtime.tv_sec;
+ policy->curlft.use_time = get_seconds();
pols[0] = policy;
npols ++;
xfrm_nr += pols[0]->xfrm_nr;
return 1;
}
- pol->curlft.use_time = (unsigned long)xtime.tv_sec;
+ pol->curlft.use_time = get_seconds();
pols[0] = pol;
npols ++;
if (pols[1]) {
if (IS_ERR(pols[1]))
return 0;
- pols[1]->curlft.use_time = (unsigned long)xtime.tv_sec;
+ pols[1]->curlft.use_time = get_seconds();
npols ++;
}
}
static void xfrm_timer_handler(unsigned long data)
{
struct xfrm_state *x = (struct xfrm_state*)data;
- unsigned long now = (unsigned long)xtime.tv_sec;
+ unsigned long now = get_seconds();
long next = LONG_MAX;
int warn = 0;
int err = 0;
init_timer(&x->rtimer);
x->rtimer.function = xfrm_replay_timer_handler;
x->rtimer.data = (unsigned long)x;
- x->curlft.add_time = (unsigned long)xtime.tv_sec;
+ x->curlft.add_time = get_seconds();
x->lft.soft_byte_limit = XFRM_INF;
x->lft.soft_packet_limit = XFRM_INF;
x->lft.hard_byte_limit = XFRM_INF;
}
EXPORT_SYMBOL(xfrm_state_flush);
+void xfrm_sad_getinfo(struct xfrm_sadinfo *si)
+{
+ spin_lock_bh(&xfrm_state_lock);
+ si->sadcnt = xfrm_state_num;
+ si->sadhcnt = xfrm_state_hmask;
+ si->sadhmcnt = xfrm_state_hashmax;
+ spin_unlock_bh(&xfrm_state_lock);
+}
+EXPORT_SYMBOL(xfrm_sad_getinfo);
+
static int
xfrm_init_tempsel(struct xfrm_state *x, struct flowi *fl,
struct xfrm_tmpl *tmpl,
x->id.daddr.a6))
continue;
break;
- };
+ }
xfrm_state_hold(x);
return x;
x->props.saddr.a6))
continue;
break;
- };
+ }
xfrm_state_hold(x);
return x;
(struct in6_addr *)saddr))
continue;
break;
- };
+ }
xfrm_state_hold(x);
return x;
ipv6_addr_copy((struct in6_addr *)x->id.daddr.a6,
(struct in6_addr *)daddr);
break;
- };
+ }
x->km.state = XFRM_STATE_ACQ;
x->id.proto = proto;
int xfrm_state_check_expire(struct xfrm_state *x)
{
if (!x->curlft.use_time)
- x->curlft.use_time = (unsigned long)xtime.tv_sec;
+ x->curlft.use_time = get_seconds();
if (x->km.state != XFRM_STATE_VALID)
return -EINVAL;
}
EXPORT_SYMBOL(xfrm_state_delete_tunnel);
-/*
- * This function is NOT optimal. For example, with ESP it will give an
- * MTU that's usually two bytes short of being optimal. However, it will
- * usually give an answer that's a multiple of 4 provided the input is
- * also a multiple of 4.
- */
int xfrm_state_mtu(struct xfrm_state *x, int mtu)
{
- int res = mtu;
-
- res -= x->props.header_len;
-
- for (;;) {
- int m = res;
-
- if (m < 68)
- return 68;
-
- spin_lock_bh(&x->lock);
- if (x->km.state == XFRM_STATE_VALID &&
- x->type && x->type->get_max_size)
- m = x->type->get_max_size(x, m);
- else
- m += x->props.header_len;
- spin_unlock_bh(&x->lock);
-
- if (m <= mtu)
- break;
- res -= (m - mtu);
- }
+ int res;
+ spin_lock_bh(&x->lock);
+ if (x->km.state == XFRM_STATE_VALID &&
+ x->type && x->type->get_mtu)
+ res = x->type->get_mtu(x, mtu);
+ else
+ res = mtu;
+ spin_unlock_bh(&x->lock);
return res;
}
default:
return -EINVAL;
- };
+ }
algp->alg_name[CRYPTO_MAX_ALG_NAME - 1] = '\0';
return 0;
default:
goto out;
- };
+ }
err = -EINVAL;
switch (p->id.proto) {
default:
goto out;
- };
+ }
if ((err = verify_one_alg(xfrma, XFRMA_ALG_AUTH)))
goto out;
default:
goto out;
- };
+ }
err = 0;
struct sk_buff *skb = sp->out_skb;
struct xfrm_usersa_info *p;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
if (sp->this_idx < sp->start_idx)
goto out;
if (x->lastused)
RTA_PUT(skb, XFRMA_LASTUSED, sizeof(x->lastused), &x->lastused);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
out:
sp->this_idx++;
return 0;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
return skb;
}
+static int build_sadinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
+{
+ struct xfrm_sadinfo si;
+ struct nlmsghdr *nlh;
+ u32 *f;
+
+ nlh = nlmsg_put(skb, pid, seq, XFRM_MSG_NEWSADINFO, sizeof(u32), 0);
+ if (nlh == NULL) /* shouldnt really happen ... */
+ return -EMSGSIZE;
+
+ f = nlmsg_data(nlh);
+ *f = flags;
+ xfrm_sad_getinfo(&si);
+
+ if (flags & XFRM_SAD_HMASK)
+ NLA_PUT_U32(skb, XFRMA_SADHMASK, si.sadhcnt);
+ if (flags & XFRM_SAD_HMAX)
+ NLA_PUT_U32(skb, XFRMA_SADHMAX, si.sadhmcnt);
+ if (flags & XFRM_SAD_CNT)
+ NLA_PUT_U32(skb, XFRMA_SADCNT, si.sadcnt);
+
+ return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
+}
+
+static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
+ struct rtattr **xfrma)
+{
+ struct sk_buff *r_skb;
+ u32 *flags = NLMSG_DATA(nlh);
+ u32 spid = NETLINK_CB(skb).pid;
+ u32 seq = nlh->nlmsg_seq;
+ int len = NLMSG_LENGTH(sizeof(u32));
+
+ if (*flags & XFRM_SAD_HMASK)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SAD_HMAX)
+ len += RTA_SPACE(sizeof(u32));
+ if (*flags & XFRM_SAD_CNT)
+ len += RTA_SPACE(sizeof(u32));
+
+ r_skb = alloc_skb(len, GFP_ATOMIC);
+
+ if (r_skb == NULL)
+ return -ENOMEM;
+
+ if (build_sadinfo(r_skb, spid, seq, *flags) < 0)
+ BUG();
+
+ return nlmsg_unicast(xfrm_nl, r_skb, spid);
+}
+
static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
struct rtattr **xfrma)
{
default:
return -EINVAL;
- };
+ }
if (p->min > p->max)
return -EINVAL;
default:
return -EINVAL;
- };
+ }
return 0;
}
default:
return -EINVAL;
- };
+ }
return 0;
}
default:
return -EINVAL;
- };
+ }
switch (p->action) {
case XFRM_POLICY_ALLOW:
default:
return -EINVAL;
- };
+ }
switch (p->sel.family) {
case AF_INET:
default:
return -EINVAL;
- };
+ }
return verify_policy_dir(p->dir);
}
#endif
default:
return -EINVAL;
- };
+ }
}
return 0;
struct sk_buff *in_skb = sp->in_skb;
struct sk_buff *skb = sp->out_skb;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
if (sp->this_idx < sp->start_idx)
goto out;
if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
out:
sp->this_idx++;
return 0;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct xfrm_aevent_id *id;
struct nlmsghdr *nlh;
struct xfrm_lifetime_cur ltime;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, c->pid, c->seq, XFRM_MSG_NEWAE, sizeof(*id));
id = NLMSG_DATA(nlh);
RTA_PUT(skb,XFRMA_ETIMER_THRESH,sizeof(u32),&etimer);
}
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
rtattr_failure:
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct xfrm_migrate *mp;
struct xfrm_userpolicy_id *pol_id;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
int i;
nlh = NLMSG_PUT(skb, 0, 0, XFRM_MSG_MIGRATE, sizeof(*pol_id));
goto nlmsg_failure;
}
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
[XFRM_MSG_GETAE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_aevent_id),
[XFRM_MSG_REPORT - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_report),
[XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_id),
+ [XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = NLMSG_LENGTH(sizeof(u32)),
};
#undef XMSGSIZE
[XFRM_MSG_NEWAE - XFRM_MSG_BASE] = { .doit = xfrm_new_ae },
[XFRM_MSG_GETAE - XFRM_MSG_BASE] = { .doit = xfrm_get_ae },
[XFRM_MSG_MIGRATE - XFRM_MSG_BASE] = { .doit = xfrm_do_migrate },
+ [XFRM_MSG_GETSADINFO - XFRM_MSG_BASE] = { .doit = xfrm_get_sadinfo },
};
-static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
+static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct rtattr *xfrma[XFRMA_MAX];
struct xfrm_link *link;
int type, min_len;
- if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
- return 0;
-
type = nlh->nlmsg_type;
-
- /* A control message: ignore them */
- if (type < XFRM_MSG_BASE)
- return 0;
-
- /* Unknown message: reply with EINVAL */
if (type > XFRM_MSG_MAX)
- goto err_einval;
+ return -EINVAL;
type -= XFRM_MSG_BASE;
link = &xfrm_dispatch[type];
/* All operations require privileges, even GET */
- if (security_netlink_recv(skb, CAP_NET_ADMIN)) {
- *errp = -EPERM;
- return -1;
- }
+ if (security_netlink_recv(skb, CAP_NET_ADMIN))
+ return -EPERM;
if ((type == (XFRM_MSG_GETSA - XFRM_MSG_BASE) ||
type == (XFRM_MSG_GETPOLICY - XFRM_MSG_BASE)) &&
(nlh->nlmsg_flags & NLM_F_DUMP)) {
if (link->dump == NULL)
- goto err_einval;
-
- if ((*errp = netlink_dump_start(xfrm_nl, skb, nlh,
- link->dump, NULL)) != 0) {
- return -1;
- }
+ return -EINVAL;
- netlink_queue_skip(nlh, skb);
- return -1;
+ return netlink_dump_start(xfrm_nl, skb, nlh, link->dump, NULL);
}
memset(xfrma, 0, sizeof(xfrma));
if (nlh->nlmsg_len < (min_len = xfrm_msg_min[type]))
- goto err_einval;
+ return -EINVAL;
if (nlh->nlmsg_len > min_len) {
int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
unsigned short flavor = attr->rta_type;
if (flavor) {
if (flavor > XFRMA_MAX)
- goto err_einval;
+ return -EINVAL;
xfrma[flavor - 1] = attr;
}
attr = RTA_NEXT(attr, attrlen);
}
if (link->doit == NULL)
- goto err_einval;
- *errp = link->doit(skb, nlh, xfrma);
-
- return *errp;
+ return -EINVAL;
-err_einval:
- *errp = -EINVAL;
- return -1;
+ return link->doit(skb, nlh, xfrma);
}
static void xfrm_netlink_rcv(struct sock *sk, int len)
{
struct xfrm_user_expire *ue;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, c->pid, 0, XFRM_MSG_EXPIRE,
sizeof(*ue));
copy_to_user_state(x, &ue->state);
ue->hard = (c->data.hard != 0) ? 1 : 0;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct xfrm_usersa_flush *p;
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = NLMSG_LENGTH(sizeof(struct xfrm_usersa_flush));
skb = alloc_skb(len, GFP_ATOMIC);
struct xfrm_usersa_id *id;
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = xfrm_sa_len(x);
int headlen;
{
struct xfrm_user_acquire *ua;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
__u32 seq = xfrm_get_acqseq();
nlh = NLMSG_PUT(skb, 0, 0, XFRM_MSG_ACQUIRE,
if (copy_to_user_policy_type(xp->type, skb) < 0)
goto nlmsg_failure;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct xfrm_user_polexpire *upe;
struct nlmsghdr *nlh;
int hard = c->data.hard;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, c->pid, 0, XFRM_MSG_POLEXPIRE, sizeof(*upe));
upe = NLMSG_DATA(nlh);
goto nlmsg_failure;
upe->hard = !!hard;
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
struct xfrm_userpolicy_id *id;
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = RTA_SPACE(sizeof(struct xfrm_user_tmpl) * xp->xfrm_nr);
int headlen;
{
struct nlmsghdr *nlh;
struct sk_buff *skb;
- unsigned char *b;
+ sk_buff_data_t b;
int len = 0;
#ifdef CONFIG_XFRM_SUB_POLICY
len += RTA_SPACE(sizeof(struct xfrm_userpolicy_type));
{
struct xfrm_user_report *ur;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
nlh = NLMSG_PUT(skb, 0, 0, XFRM_MSG_REPORT, sizeof(*ur));
ur = NLMSG_DATA(nlh);
if (addr)
RTA_PUT(skb, XFRMA_COADDR, sizeof(*addr), addr);
- nlh->nlmsg_len = skb->tail - b;
+ nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;
nlmsg_failure:
rtattr_failure:
- skb_trim(skb, b - skb->data);
+ nlmsg_trim(skb, b);
return -1;
}
printk(KERN_INFO "Initializing XFRM netlink socket\n");
nlsk = netlink_kernel_create(NETLINK_XFRM, XFRMNLGRP_MAX,
- xfrm_netlink_rcv, THIS_MODULE);
+ xfrm_netlink_rcv, NULL, THIS_MODULE);
if (nlsk == NULL)
return -ENOMEM;
rcu_assign_pointer(xfrm_nl, nlsk);
.read = keyring_read,
};
+EXPORT_SYMBOL(key_type_keyring);
+
/*
* semaphore to serialise link/link calls to prevent two link calls in parallel
* introducing a cycle
int offset, ihlen, ret = -EINVAL;
struct iphdr _iph, *ih;
- offset = skb->nh.raw - skb->data;
+ offset = skb_network_offset(skb);
ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph);
if (ih == NULL)
goto out;
int ret = -EINVAL, offset;
struct ipv6hdr _ipv6h, *ip6;
- offset = skb->nh.raw - skb->data;
+ offset = skb_network_offset(skb);
ip6 = skb_header_pointer(skb, offset, sizeof(_ipv6h), &_ipv6h);
if (ip6 == NULL)
goto out;
err = -EINVAL;
goto out;
}
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
err = selinux_nlmsg_lookup(isec->sclass, nlh->nlmsg_type, &perm);
if (err) {
static void selnl_notify(int msgtype, void *data)
{
int len;
- unsigned char *tmp;
+ sk_buff_data_t tmp;
struct sk_buff *skb;
struct nlmsghdr *nlh;
static int __init selnl_init(void)
{
- selnl = netlink_kernel_create(NETLINK_SELINUX, SELNLGRP_MAX, NULL,
+ selnl = netlink_kernel_create(NETLINK_SELINUX, SELNLGRP_MAX, NULL, NULL,
THIS_MODULE);
if (selnl == NULL)
panic("SELinux: Cannot create netlink socket.");
static int __devinit amd7930_obio_attach(struct device_node *dp)
{
- struct linux_prom_registers *regs;
- struct linux_prom_irqs *irqp;
+ const struct linux_prom_registers *regs;
+ const struct linux_prom_irqs *irqp;
struct resource res, *rp;
int len;
if (!strcmp(edev->prom_node->name, "SUNW,CS4231")) {
match = 1;
} else if (!strcmp(edev->prom_node->name, "audio")) {
- char *compat;
+ const char *compat;
compat = of_get_property(edev->prom_node,
"compatible", NULL);
git.openpandora.org / pandora-kernel.git / commitdiff