3 Add sockopt=TCP_NODELAY mount option. EA (xattr) routines hardened
4 to more strictly handle corrupt frames.
8 Fix append problem to Samba servers (files opened with O_APPEND could
9 have duplicated data). Fix oops in cifs_lookup. Workaround problem
10 mounting to OS/400 Netserve. Fix oops in cifs_get_tcp_session.
11 Disable use of server inode numbers when server only
12 partially supports them (e.g. for one server querying inode numbers on
13 FindFirst fails but QPathInfo queries works). Fix oops with dfs in
14 cifs_put_smb_ses. Fix mmap to work on directio mounts (needed
15 for OpenOffice when on forcedirectio mount e.g.)
19 Fix memory leak in reconnect. Fix oops in DFS mount error path.
20 Set s_maxbytes to smaller (the max that vfs can handle) so that
21 sendfile will now work over cifs mounts again. Add noforcegid
22 and noforceuid mount parameters. Fix small mem leak when using
23 ntlmv2. Fix 2nd mount to same server but with different port to
24 be allowed (rather than reusing the 1st port) - only when the
25 user explicitly overrides the port on the 2nd mount.
29 Client uses server inode numbers (which are persistent) rather than
30 client generated ones by default (mount option "serverino" turned
31 on by default if server supports it). Add forceuid and forcegid
32 mount options (so that when negotiating unix extensions specifying
33 which uid mounted does not immediately force the server's reported
34 uids to be overridden). Add support for scope mount parm. Improve
35 hard link detection to use same inode for both. Do not set
36 read-only dos attribute on directories (for chmod) since Windows
37 explorer special cases this attribute bit for directories for
42 Guard against buffer overruns in various UCS-2 to UTF-8 string conversions
43 when the UTF-8 string is composed of unusually long (more than 4 byte) converted
44 characters. Add support for mounting root of a share which redirects immediately
45 to DFS target. Convert string conversion functions from Unicode to more
46 accurately mark string length before allocating memory (which may help the
47 rare cases where a UTF-8 string is much larger than the UCS2 string that
48 we converted from). Fix endianness of the vcnum field used during
49 session setup to distinguish multiple mounts to same server from different
50 userids. Raw NTLMSSP fixed (it requires /proc/fs/cifs/experimental
51 flag to be set to 2, and mount must enable krb5 to turn on extended security).
52 Performance of file create to Samba improved (posix create on lookup
53 removes 1 of 2 network requests sent on file create)
57 Improve support for multiple security contexts to the same server. We
58 used to use the same "vcnumber" for all connections which could cause
59 the server to treat subsequent connections, especially those that
60 are authenticated as guest, as reconnections, invalidating the earlier
61 user's smb session. This fix allows cifs to mount multiple times to the
62 same server with different userids without risking invalidating earlier
63 established security contexts. fsync now sends SMB Flush operation
64 to better ensure that we wait for server to write all of the data to
65 server disk (not just write it over the network). Add new mount
66 parameter to allow user to disable sending the (slow) SMB flush on
67 fsync if desired (fsync still flushes all cached write data to the server).
68 Posix file open support added (turned off after one attempt if server
69 fails to support it properly, as with Samba server versions prior to 3.3.2)
70 Fix "redzone overwritten" bug in cifs_put_tcon (CIFSTcon may allocate too
71 little memory for the "nativeFileSystem" field returned by the server
72 during mount). Endian convert inode numbers if necessary (makes it easier
73 to compare inode numbers on network files from big endian systems).
77 Add "forcemandatorylock" mount option to allow user to use mandatory
78 rather than posix (advisory) byte range locks, even though server would
79 support posix byte range locks. Fix query of root inode when prefixpath
80 specified and user does not have access to query information about the
81 top of the share. Fix problem in 2.6.28 resolving DFS paths to
82 Samba servers (worked to Windows). Fix rmdir so that pending search
83 (readdir) requests do not get invalid results which include the now
84 removed directory. Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
85 when using DFS. Add better file create support to servers which support
86 the CIFS POSIX protocol extensions (this adds support for new flags
87 on create, and improves semantics for write of locked ranges).
91 Various fixes to make delete of open files behavior more predictable
92 (when delete of an open file fails we mark the file as "delete-on-close"
93 in a way that more servers accept, but only if we can first rename the
94 file to a temporary name). Add experimental support for more safely
95 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
96 sends, and also let tcp autotune the socket send and receive buffers.
97 This reduces the number of EAGAIN errors returned by TCP/IP in
98 high stress workloads (and the number of retries on socket writes
99 when sending large SMBWriteX requests). Fix case in which a portion of
100 data can in some cases not get written to the file on the server before the
101 file is closed. Fix DFS parsing to properly handle path consumed field,
102 and to handle certain codepage conversions better. Fix mount and
103 umount race that can cause oops in mount or umount or reconnect.
107 Fix premature write failure on congested networks (we would give up
108 on EAGAIN from the socket too quickly on large writes).
109 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
110 Fix endian problems in acl (mode from/to cifs acl) on bigendian
111 architectures. Fix problems with preserving timestamps on copying open
112 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
113 on parent directory when server supports Unix Extensions but not POSIX
114 create. Update cifs.upcall version to handle new Kerberos sec flags
115 (this requires update of cifs.upcall program from Samba). Fix memory leak
116 on dns_upcall (resolving DFS referralls). Fix plain text password
117 authentication (requires setting SecurityFlags to 0x30030 to enable
118 lanman and plain text though). Fix writes to be at correct offset when
119 file is open with O_APPEND and file is on a directio (forcediretio) mount.
120 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
124 DFS support added (Microsoft Distributed File System client support needed
125 for referrals which enable a hierarchical name space among servers).
126 Disable temporary caching of mode bits to servers which do not support
127 storing of mode (e.g. Windows servers, when client mounts without cifsacl
128 mount option) and add new "dynperm" mount option to enable temporary caching
129 of mode (enable old behavior). Fix hang on mount caused when server crashes
130 tcp session during negotiate protocol.
134 Fix oops on second mount to server when null auth is used.
135 Enable experimental Kerberos support. Return writebehind errors on flush
136 and sync so that events like out of disk space get reported properly on
137 cached files. Fix setxattr failure to certain Samba versions. Fix mount
138 of second share to disconnected server session (autoreconnect on this).
139 Add ability to modify cifs acls for handling chmod (when mounted with
140 cifsacl flag). Fix prefixpath path separator so we can handle mounts
141 with prefixpaths longer than one directory (one path component) when
142 mounted to Windows servers. Fix slow file open when cifsacl
143 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
148 Fix memory leak in statfs when mounted to very old servers (e.g.
149 Windows 9x). Add new feature "POSIX open" which allows servers
150 which support the current POSIX Extensions to provide better semantics
151 (e.g. delete for open files opened with posix open). Take into
152 account umask on posix mkdir not just older style mkdir. Add
153 ability to mount to IPC$ share (which allows CIFS named pipes to be
154 opened, read and written as if they were files). When 1st tree
155 connect fails (e.g. due to signing negotiation failure) fix
156 leak that causes cifsd not to stop and rmmod to fail to cleanup
157 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
158 bigendian architectures. Fix possible memory corruption when
159 EAGAIN returned on kern_recvmsg. Return better error if server
160 requires packet signing but client has disabled it. When mounted
161 with cifsacl mount option - mode bits are approximated based
162 on the contents of the ACL of the file or directory. When cifs
163 mount helper is missing convert make sure that UNC name
164 has backslash (not forward slash) between ip address of server
169 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
170 done with "serverino" mount option). Add support for POSIX Unlink
171 (helps with certain sharing violation cases when server such as
172 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
173 mount option to allow disabling the CIFS Unix Extensions for just
174 that mount. Fix hang on spinlock in find_writable_file (race when
175 reopening file after session crash). Byte range unlock request to
176 windows server could unlock more bytes (on server copy of file)
177 than intended if start of unlock request is well before start of
178 a previous byte range lock that we issued.
182 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
183 address after the "ip=" mount option, at least until mount.cifs is fixed to
184 handle DNS host to ipv6 name translation). Accept override of uid or gid
185 on mount even when Unix Extensions are negotiated (it used to be ignored
186 when Unix Extensions were ignored). This allows users to override the
187 default uid and gid for files when they are certain that the uids or
188 gids on the server do not match those of the client. Make "sec=none"
189 mount override username (so that null user connection is attempted)
190 to match what documentation said. Support for very large reads, over 127K,
191 available to some newer servers (such as Samba 3.0.26 and later but
192 note that it also requires setting CIFSMaxBufSize at module install
193 time to a larger value which may hurt performance in some cases).
194 Make sign option force signing (or fail if server does not support it).
198 Fix mtime bouncing around from local idea of last write times to remote time.
199 Fix hang (in i_size_read) when simultaneous size update of same remote file
200 on smp system corrupts sequence number. Do not reread unnecessarily partial page
201 (which we are about to overwrite anyway) when writing out file opened rw.
202 When DOS attribute of file on non-Unix server's file changes on the server side
203 from read-only back to read-write, reflect this change in default file mode
204 (we had been leaving a file's mode read-only until the inode were reloaded).
205 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
206 when archive dos attribute not set and we are changing mode back to writeable
207 on server which does not support the Unix Extensions). Remove read only dos
208 attribute on chmod when adding any write permission (ie on any of
209 user/group/other (not all of user/group/other ie 0222) when
210 mounted to windows. Add support for POSIX MkDir (slight performance
211 enhancement and eliminates the network race between the mkdir and set
212 path info of the mode).
217 Fix oops in list_del during mount caused by unaligned string.
218 Fix file corruption which could occur on some large file
219 copies caused by writepages page i/o completion bug.
220 Seek to SEEK_END forces check for update of file size for non-cached
221 files. Allow file size to be updated on remote extend of locally open,
222 non-cached file. Fix reconnect to newer Samba servers (or other servers
223 which support the CIFS Unix/POSIX extensions) so that we again tell the
224 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
225 Add experimental support for new POSIX Open/Mkdir (which returns
226 stat information on the open, and allows setting the mode).
230 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
231 Allow null user to be specified on mount ("username="). Do not return
232 EINVAL on readdir when filldir fails due to overwritten blocksize
233 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
234 if rename by handle also fails, after rename by path fails, we were
235 not reporting whether the retry worked or not). Fix NTLMv2 to
236 work to Windows servers (mount with option "sec=ntlmv2").
240 Do not time out lockw calls when using posix extensions. Do not
241 time out requests if server still responding reasonably fast
242 on requests on other threads. Improve POSIX locking emulation,
243 (lock cancel now works, and unlock of merged range works even
244 to Windows servers now). Fix oops on mount to lanman servers
245 (win9x, os/2 etc.) when null password. Do not send listxattr
246 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
247 problem (instantiate inodes/dentries in right order for readdir).
251 Rewritten sessionsetup support, including support for legacy SMB
252 session setup needed for OS/2 and older servers such as Windows 95 and 98.
253 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
254 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
255 or recent levels of FindFirst unless server says it supports NT SMBs
256 (instead use legacy equivalents from LANMAN dialect). Fix to allow
257 NTLMv2 authentication support (now can use stronger password hashing
258 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
259 Allow override of global cifs security flags on mount via "sec=" option(s).
263 POSIX locking to servers which support CIFS POSIX Extensions
264 (disabled by default controlled by proc/fs/cifs/Experimental).
265 Handle conversion of long share names (especially Asian languages)
266 to Unicode during mount. Fix memory leak in sess struct on reconnect.
267 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
268 cifs open which helps rare case when setpathinfo fails or server does
273 Fix slow oplock break when mounted to different servers at the same time and
274 the tids match and we try to find matching fid on wrong server. Fix read
275 looping when signing required by server (2.6.16 kernel only). Fix readdir
276 vs. rename race which could cause each to hang. Return . and .. even
277 if server does not. Allow searches to skip first three entries and
278 begin at any location. Fix oops in find_writeable_file.
282 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
283 configure stronger authentication. Fix sfu symlinks so they can
284 be followed (not just recognized). Fix wraparound of bcc on
285 read responses when buffer size over 64K and also fix wrap of
286 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
287 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
288 on socket is returned over and over). Add POSIX (advisory) byte range
289 locking support (requires server with newest CIFS UNIX Extensions
290 to the protocol implemented). Slow down negprot slightly in port 139
291 RFC1001 case to give session_init time on buggy servers.
295 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
296 of readpages by eliminating one extra memcpy. Allow update of file size
297 from remote server even if file is open for write as long as mount is
298 directio. Recognize share mode security and send NTLM encrypted password
299 on tree connect if share mode negotiated.
303 Defer close of a file handle slightly if pending writes depend on that handle
304 (this reduces the EBADF bad file handle errors that can be logged under heavy
305 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
306 Fix SFU style symlinks and mknod needed for servers which do not support the
307 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
308 dentries so files that the client sees as deleted but that later get created
309 on the server will be recognized. Add client side permission check on setattr.
310 Timeout stuck requests better (where server has never responded or sent corrupt
315 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
316 to be smaller at first (but increasing) so large write performance performance
317 over GigE is better. Do not hang thread on illegal byte range lock response
318 from Windows (Windows can send an RFC1001 size which does not match smb size) by
319 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
320 wsize and rsize can now be larger than negotiated buffer size if server
321 supports large readx/writex, even when directio mount flag not specified.
322 Write size will in many cases now be 16K instead of 4K which greatly helps
323 file copy performance on lightly loaded networks. Fix oops in dnotify
324 when experimental config flag enabled. Make cifsFYI more granular.
328 Fix readdir caching when unlink removes file in current search buffer,
329 and this is followed by a rewind search to just before the deleted entry.
330 Do not attempt to set ctime unless atime and/or mtime change requested
331 (most servers throw it away anyway). Fix length check of received smbs
332 to be more accurate. Fix big endian problem with mapchars mount option,
333 and with a field returned by statfs.
337 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
338 For these older servers, add option for passing netbios name of server in
339 on mount (servernetbiosname). Add suspend support for power management, to
340 avoid cifsd thread preventing software suspend from working.
341 Add mount option for disabling the default behavior of sending byte range lock
342 requests to the server (necessary for certain applications which break with
343 mandatory lock behavior such as Evolution), and also mount option for
344 requesting case insensitive matching for path based requests (requesting
345 case sensitive is the default).
349 Add writepage performance improvements. Fix path name conversions
350 for long filenames on mounts which were done with "mapchars" mount option
351 specified. Ensure multiplex ids do not collide. Fix case in which
352 rmmod can oops if done soon after last unmount. Fix truncated
353 search (readdir) output when resume filename was a long filename.
354 Fix filename conversion when mapchars mount option was specified and
355 filename was a long filename.
359 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
360 Do not oops if root user kills cifs oplock kernel thread or
361 kills the cifsd thread (NB: killing the cifs kernel threads is not
362 recommended, unmount and rmmod cifs will kill them when they are
363 no longer needed). Fix readdir to ASCII servers (ie older servers
364 which do not support Unicode) and also require asterisk.
365 Fix out of memory case in which data could be written one page
366 off in the page cache.
370 Fix caching problem, in which readdir of directory containing a file
371 which was cached could cause the file's time stamp to be updated
372 without invalidating the readahead data (so we could get stale
373 file data on the client for that file even as the server copy changed).
374 Cleanup response processing so cifsd can not loop when abnormally
380 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
381 transact response for an SMB request and search entry split across two frames.
382 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
383 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
384 unless server explicitly claims to support them in CIFS Unix extensions
385 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
386 different users from the same client to the same server. Fix oops in
387 cifs_close. Add mount option for remapping reserved characters in
388 filenames (also allow recognizing files with created by SFU which have any
389 of these seven reserved characters, except backslash, to be recognized).
390 Fix invalid transact2 message (we were sometimes trying to interpret
391 oplock breaks as SMB responses). Add ioctl for checking that the
392 current uid matches the uid of the mounter (needed by umount.cifs).
393 Reduce the number of large buffer allocations in cifs response processing
394 (significantly reduces memory pressure under heavy stress with multiple
395 processes accessing the same server at the same time).
399 Fix updates of DOS attributes and time fields so that files on NT4 servers
400 do not get marked delete on close. Display sizes of cifs buffer pools in
401 cifs stats. Fix oops in unmount when cifsd thread being killed by
402 shutdown. Add generic readv/writev and aio support. Report inode numbers
403 consistently in readdir and lookup (when serverino mount option is
404 specified use the inode number that the server reports - for both lookup
405 and readdir, otherwise by default the locally generated inode number is used
406 for inodes created in either path since servers are not always able to
407 provide unique inode numbers when exporting multiple volumes from under one
412 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
413 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
414 (mostly affects NT4 servers) by retry with handle based network operation.
415 Add new POSIX Query FS Info for returning statfs info more accurately.
416 Handle passwords with multiple commas in them.
420 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
421 Fix capabilities flags for large readx so as to allow reads larger than 64K.
425 Add module init parm for large SMB buffer size (to allow it to be changed
426 from its default of 16K) which is especially useful for large file copy
427 when mounting with the directio mount option. Fix oops after
428 returning from mount when experimental ExtendedSecurity enabled and
429 SpnegoNegotiated returning invalid error. Fix case to retry better when
430 peek returns from 1 to 3 bytes on socket which should have more data.
431 Fixed path based calls (such as cifs lookup) to handle path names
432 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
433 from Samba server to DC (Samba required dummy LM password).
437 Turn off DNOTIFY (directory change notification support) by default
438 (unless built with the experimental flag) to fix hang with KDE
439 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
440 waiting on an SMB response) in SendReceive when session dies but
441 reconnects quickly from another task. Add module init parms for
442 minimum number of large and small network buffers in the buffer pools,
443 and for the maximum number of simultaneous requests.
447 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
448 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
449 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
450 improperly zeroed buffer in CIFS Unix extensions set times call.
454 Fix internationalization problem in cifs readdir with filenames that map to
455 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
456 for readdir to netapp servers. Fix search rewind (seek into readdir to return
457 non-consecutive entries). Do not do readdir when server negotiates
458 buffer size to small to fit filename. Add support for reading POSIX ACLs from
459 the server (add also acl and noacl mount options).
463 Optionally allow using server side inode numbers, rather than client generated
464 ones by specifying mount option "serverino" - this is required for some apps
465 to work which double check hardlinked files and have persistent inode numbers.
469 Multiple bigendian fixes. On little endian systems (for reconnect after
470 network failure) fix tcp session reconnect code so we do not try first
471 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
472 as directories rather than symlinks because we can do follow link on them.
476 Add config option to enable XATTR (extended attribute) support, mapping
477 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
478 minor fixes pointed out by the Stanford SWAT checker (mostly missing
479 or out of order NULL pointer checks in little used error paths).
483 Add new mount parm to control whether mode check (generic_permission) is done
484 on the client. If Unix extensions are enabled and the uids on the client
485 and server do not match, client permission checks are meaningless on
486 server uids that do not exist on the client (this does not affect the
487 normal ACL check which occurs on the server). Fix default uid
488 on mknod to match create and mkdir. Add optional mount parm to allow
489 override of the default uid behavior (in which the server sets the uid
490 and gid of newly created files). Normally for network filesystem mounts
491 user want the server to set the uid/gid on newly created files (rather than
492 using uid of the client processes you would in a local filesystem).
496 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
497 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
498 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
499 (block/char/fifo) properly. Remove spurious mount warning log entry when
500 credentials passed as mount argument. Set major/minor device number in
501 inode for block and char devices when unix extensions enabled.
505 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
506 amounts of return data. Properly limit requests to MAX_REQ (50
507 is the usual maximum active multiplex SMB/CIFS requests per server).
508 Do not kill cifsd (and thus hurt the other SMB session) when more than one
509 session to the same server (but with different userids) exists and one
510 of the two user's smb sessions is being removed while leaving the other.
511 Do not loop reconnecting in cifsd demultiplex thread when admin
512 kills the thread without going through unmount.
516 Do not rename hardlinked files (since that should be a noop). Flush
517 cached write behind data when reopening a file after session abend,
518 except when already in write. Grab per socket sem during reconnect
519 to avoid oops in sendmsg if overlapping with reconnect. Do not
520 reset cached inode file size on readdir for files open for write on
526 Update number of blocks in file so du command is happier (in Linux a fake
527 blocksize of 512 is required for calculating number of blocks in inode).
528 Fix prepare write of partial pages to read in data from server if possible.
529 Fix race on tcpStatus field between unmount and reconnection code, causing
530 cifsd process sometimes to hang around forever. Improve out of memory
531 checks in cifs_filldir
535 Fix incorrect file size in file handle based setattr on big endian hardware.
536 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
537 and closing file structs in writepage/partialpagewrite. Add statistics
538 for each mounted share (new menuconfig option). Fix endianness problem in
539 volume information displayed in /proc/fs/cifs/DebugData (only affects
540 affects big endian architectures). Prevent renames while constructing
541 path names for open, mkdir and rmdir.
545 Change to mempools for alloc smb request buffers and multiplex structs
546 to better handle low memory problems (and potential deadlocks).
550 Fix incomplete listings of large directories on Samba servers when Unix
551 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
552 rename deadlock when writing out dirty pages at same time.
556 Fix open of files in which O_CREATE can cause the mode to change in
557 some cases. Fix case in which retry of write overlaps file close.
558 Fix PPC64 build error. Reduce excessive stack usage in smb password
559 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
563 Fixes for large file copy, signal handling, socket retry, buffer
564 allocation and low memory situations.
568 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
569 also now allowing support for specifying client netbiosname. NT4 support added.
573 Fix reconnection (and certain failed mounts) to properly wake up the
574 blocked users thread so it does not seem hung (in some cases was blocked
575 until the cifs receive timeout expired). Fix spurious error logging
576 to kernel log when application with open network files killed.
580 Fix /proc/fs module unload warning message (that could be logged
581 to the kernel log). Fix intermittent failure in connectathon
582 test7 (hardlink count not immediately refreshed in case in which
583 inode metadata can be incorrectly kept cached when time near zero)
587 Allow file_mode and dir_mode (specified at mount time) to be enforced
588 locally (the server already enforced its own ACLs too) for servers
589 that do not report the correct mode (do not support the
590 CIFS Unix Extensions).
594 Fix some small memory leaks in some unmount error paths. Fix major leak
595 of cache pages in readpages causing multiple read oriented stress
596 testcases (including fsx, and even large file copy) to fail over time.
600 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
601 This allows files that differ only in case and improves performance of file
602 creation and file open to such servers. Fix semaphore conflict which causes
603 slow delete of open file to Samba (which unfortunately can cause an oplock
604 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
608 fixes to cifs_readpages for fsx test case
612 Fix caching data integrity bug when extending file size especially when no
613 oplock on file. Fix spurious logging of valid already parsed mount options
614 that are parsed outside of the cifs vfs such as nosuid.
619 Connect to server when port number override not specified, and tcp port
620 unitialized. Reset search to restart at correct file when kernel routine
621 filldir returns error during large directory searches (readdir).
625 Fix caching problem when files opened by multiple clients in which
626 page cache could contain stale data, and write through did
627 not occur often enough while file was still open when read ahead
628 (read oplock) not allowed. Treat "sep=" when first mount option
629 as an override of comma as the default separator between mount
634 Allow passwords longer than 16 bytes. Allow null password string.
638 Gracefully clean up failed mounts when attempting to mount to servers such as
639 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
640 embedded commas in mount parsing of passwords.
644 Invalidate local inode cached pages on oplock break and when last file
645 instance is closed so that the client does not continue using stale local
646 copy rather than later modified server copy of file. Do not reconnect
647 when server drops the tcp session prematurely before negotiate
648 protocol response. Fix oops in reopen_file when dentry freed. Allow
649 the support for CIFS Unix Extensions to be disabled via proc interface.
653 Fix hang in commit_write during reconnection of open files under heavy load.
654 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
655 which also fixes any possible races when cifs signatures are enabled in SMBs
656 being sent out of signature sequence number order.
660 Fix byte range locking bug (endian problem) causing bad offset and
665 Fix oops (in send_sig) caused by CIFS unmount code trying to
666 wake up the demultiplex thread after it had exited. Do not log
667 error on harmless oplock release of closed handle.
671 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
672 Fix problem reconnecting secondary mounts to same server after session
673 failure. Fix invalid dentry - race in mkdir when directory gets created
674 by another client between the lookup and mkdir.
678 Fix to list processing in reopen_files. Fix reconnection when server hung
679 but tcpip session still alive. Set proper timeout on socket read.
683 Add missing mount options including iocharset. SMP fixes in write and open.
684 Fix errors in reconnecting after TCP session failure. Fix module unloading
685 of default nls codepage
689 Active smb transactions should never go negative (fix double FreeXid). Fix
690 list processing in file routines. Check return code on kmalloc in open.
691 Fix spinlock usage for SMP.
695 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
696 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
697 on create hard link when server does not support them.
701 Fix scheduling while atomic error in getting inode info on newly created file.
702 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
706 Fix oops on write to dead tcp session. Remove error log write for case when file open
707 O_CREAT but not O_EXCL
711 Fix non-POSIX behavior on rename of open file and delete of open file by taking
712 advantage of trans2 SetFileInfo rename facility if available on target server.
713 Retry on ENOSPC and EAGAIN socket errors.
717 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
718 allocation size miscalculation. After oplock token lost do not read through
723 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
727 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
728 during auto reconnection to server after server recovered from failure.
732 Finish support for Linux 2.5 open/create changes, which removes the
733 redundant NTCreate/QPathInfo/close that was sent during file create.
734 Enable oplock by default. Enable packet signing by default (needed to
735 access many recent Windows servers)
739 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
740 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
741 we will choose a cifs user session (smb uid) that better matches the local
742 uid if a) the mount uid does not match the current uid and b) we have another
743 session to the same server (ip address) for a different mount which
744 matches the current local uid.
748 Add support for mknod of block or character devices. Fix oplock
749 code (distributed caching) to properly send response to oplock
754 Finish up CIFS packet digital signing for the default
755 NTLM security case. This should help Windows 2003
756 network interoperability since it is common for
757 packet signing to be required now. Fix statfs (stat -f)
758 which recently started returning errors due to
759 invalid value (-1 instead of 0) being set in the
760 struct kstatfs f_ffiles field.
764 Fix oops on stopping oplock thread when removing cifs when
769 Fix mount options for ro (readonly), uid, gid and file and directory mode.
773 Fix errors displayed on failed mounts to be more understandable.
774 Fixed various incorrect or misleading smb to posix error code mappings.
778 Fix display of NTFS DFS junctions to display as symlinks.
779 They are the network equivalent. Fix oops in
780 cifs_partialpagewrite caused by missing spinlock protection
781 of openfile linked list. Allow writebehind caching errors to
782 be returned to the application at file close.
786 Clean up options displayed in /proc/mounts by show_options to
787 be more consistent with other filesystems.
791 Fix delete of readonly file to Windows servers. Reflect
792 presence or absence of read only dos attribute in mode
793 bits for servers that do not support CIFS Unix extensions.
794 Fix shortened results on readdir of large directories to
795 servers supporting CIFS Unix extensions (caused by
796 incorrect resume key).
800 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
804 unload nls if mount fails.
808 Add resume key support to search (readdir) code to workaround
809 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
810 allows disabling caching of attribute information for
815 Add more oplock handling (distributed caching code). Remove
816 dead code. Remove excessive stack space utilization from
821 Fix oops in get dfs referral (triggered when null path sent in to
822 mount). Add support for overriding rsize at mount time.
826 Fix buffer overrun in readdir which caused intermittent kernel oopses.
827 Fix writepage code to release kmap on write data. Allow "-ip=" new
828 mount option to be passed in on parameter distinct from the first part
829 (server name portion of) the UNC name. Allow override of the
830 tcp port of the target server via new mount option "-port="
834 Fix search handle leak on rewind. Fix setuid and gid so that they are
835 reflected in the local inode immediately. Cleanup of whitespace
836 to make 2.4 and 2.5 versions more consistent.
841 Fix signal sending so that captive thread (cifsd) exits on umount
842 (which was causing the warning in kmem_cache_free of the request buffers
843 at rmmod time). This had broken as a sideeffect of the recent global
844 kernel change to daemonize. Fix memory leak in readdir code which
845 showed up in "ls -R" (and applications that did search rewinding).
849 Reconnect tids and fids after session reconnection (still do not
850 reconnect byte range locks though). Fix problem caching
851 lookup information for directory inodes, improving performance,
852 especially in deep directory trees. Fix various build warnings.
856 Finish fixes to commit write for caching/readahead consistency. fsx
857 now works to Samba servers. Fix oops caused when readahead
858 was interrupted by a signal.
862 Fix data corruption (in partial page after truncate) that caused fsx to
863 fail to Windows servers. Cleaned up some extraneous error logging in
864 common error paths. Add generic sendfile support.
868 Fix memory leak in AllocMidQEntry.
869 Finish reconnection logic, so connection with server can be dropped
870 (or server rebooted) and the cifs client will reconnect.
874 Fix temporary socket leak when bad userid or password specified
875 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
876 over 16K to allow negotiation of up to Samba and Windows server default read
877 sizes. Add support for readpages
881 Fix oops when username not passed in on mount. Extensive fixes and improvements
882 to error logging (strip redundant newlines, change debug macros to ensure newline
883 passed in and to be more consistent). Fix writepage wrong file handle problem,
884 a readonly file handle could be incorrectly used to attempt to write out
885 file updates through the page cache to multiply open files. This could cause
886 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
887 shares to the same Windows server when using different usernames
888 (doing this to Samba servers worked but Windows was rejecting it) - now it is
889 possible to use different userids when connecting to the same server from a
890 Linux client. Fix oops when treeDisconnect called during unmount on
891 previously freed socket.
895 Fix oops in readpages caused by not setting address space operations in inode in
900 Includes support for deleting of open files and renaming over existing files (per POSIX
901 requirement). Add readlink support for Windows junction points (directory symlinks).
905 Changed read and write to go through pagecache. Added additional address space operations.
906 Memory mapped operations now working.
910 Added writepage code for additional memory mapping support. Fixed leak in xids causing
911 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
912 every stat call. Additional formatting cleanup.
916 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
920 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
921 Also included a modified version of his fix to protect global list manipulation of
922 the smb session and tree connection and mid related global variables.
926 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
927 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
928 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
932 More stylistic updates to better match kernel style. Add additional statistics
933 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
934 and CIFS Packet Signing enablement.
938 Replace call to sleep_on with safer wait_on_event.
939 Make stylistic changes to better match kernel style recommendations.
940 Remove most typedef usage (except for the PDUs themselves).
944 Update mount so the -unc mount option is no longer required (the ip address can be specified
945 in a UNC style device name. Implementation of readpage/writepage started.
949 Fix intermittent problem with incorrect smb header checking on badly
950 fragmented tcp responses
954 Fixes to setting of allocation size and file size.
958 Various 2.5.38 fixes. Now works on 2.5.38
962 Prepare for 2.5 kernel merge. Remove ifdefs.
966 Socket buffer management fixes. Fix dual free.
970 Various big endian fixes for hardlinks and symlinks and also for dfs.
974 Various big endian fixes for servers with Unix extensions such as Samba
978 Various FindNext fixes for incorrect filenames on large directory searches on big endian
979 clients. basic posix file i/o tests now work on big endian machines, not just le
983 SessionSetup and NegotiateProtocol now work from Big Endian machines.
984 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
985 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
989 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
990 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
994 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
995 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
996 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
997 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
1001 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
1002 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
1006 Rewrote much of connection and mount/unmount logic to handle bugs with
1007 multiple uses to same share, multiple users to same server etc.
1011 Fixed major problem with dentry corruption (missing call to dput)
1015 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
1016 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
1017 although corresponding function not fully implemented in the vfs yet
1021 Fixed dentry caching bug, misc. cleanup
1025 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
1026 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
1027 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
1031 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
1032 and tested against Samba 2.2.5
1037 1) Fixed lockrange to be correct (it was one byte too short)
1039 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
1040 show range as locked when there is a conflict with an existing lock.
1042 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
1043 in most cases. Eventually will offer optional ability to query server for the correct perms.
1045 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
1046 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
1049 4) Fixed error logging of valid mount options
1051 5) Removed logging of password field.
1053 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
1054 and cleaned them up and made them more consistent with other cifs functions.
1056 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
1057 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
1058 nor is the symlink support using the Unix extensions
1060 8) Started adding the readlink and follow_link code
git.openpandora.org / pandora-kernel.git / blob