3 Client uses server inode numbers (which are persistent) rather than
4 client generated ones by default (mount option "serverino" turned
5 on by default if server supports it). Add forceuid and forcegid
6 mount options (so that when negotiating unix extensions specifying
7 which uid mounted does not immediately force the server's reported
8 uids to be overridden). Add support for scope mount parm. Improve
9 hard link detection to use same inode for both. Do not set
10 read-only dos attribute on directories (for chmod) since Windows
11 explorer special cases this attribute bit for directories for
16 Guard against buffer overruns in various UCS-2 to UTF-8 string conversions
17 when the UTF-8 string is composed of unusually long (more than 4 byte) converted
18 characters. Add support for mounting root of a share which redirects immediately
19 to DFS target. Convert string conversion functions from Unicode to more
20 accurately mark string length before allocating memory (which may help the
21 rare cases where a UTF-8 string is much larger than the UCS2 string that
22 we converted from). Fix endianness of the vcnum field used during
23 session setup to distinguish multiple mounts to same server from different
24 userids. Raw NTLMSSP fixed (it requires /proc/fs/cifs/experimental
25 flag to be set to 2, and mount must enable krb5 to turn on extended security).
26 Performance of file create to Samba improved (posix create on lookup
27 removes 1 of 2 network requests sent on file create)
31 Improve support for multiple security contexts to the same server. We
32 used to use the same "vcnumber" for all connections which could cause
33 the server to treat subsequent connections, especially those that
34 are authenticated as guest, as reconnections, invalidating the earlier
35 user's smb session. This fix allows cifs to mount multiple times to the
36 same server with different userids without risking invalidating earlier
37 established security contexts. fsync now sends SMB Flush operation
38 to better ensure that we wait for server to write all of the data to
39 server disk (not just write it over the network). Add new mount
40 parameter to allow user to disable sending the (slow) SMB flush on
41 fsync if desired (fsync still flushes all cached write data to the server).
42 Posix file open support added (turned off after one attempt if server
43 fails to support it properly, as with Samba server versions prior to 3.3.2)
44 Fix "redzone overwritten" bug in cifs_put_tcon (CIFSTcon may allocate too
45 little memory for the "nativeFileSystem" field returned by the server
46 during mount). Endian convert inode numbers if necessary (makes it easier
47 to compare inode numbers on network files from big endian systems).
51 Add "forcemandatorylock" mount option to allow user to use mandatory
52 rather than posix (advisory) byte range locks, even though server would
53 support posix byte range locks. Fix query of root inode when prefixpath
54 specified and user does not have access to query information about the
55 top of the share. Fix problem in 2.6.28 resolving DFS paths to
56 Samba servers (worked to Windows). Fix rmdir so that pending search
57 (readdir) requests do not get invalid results which include the now
58 removed directory. Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
59 when using DFS. Add better file create support to servers which support
60 the CIFS POSIX protocol extensions (this adds support for new flags
61 on create, and improves semantics for write of locked ranges).
65 Various fixes to make delete of open files behavior more predictable
66 (when delete of an open file fails we mark the file as "delete-on-close"
67 in a way that more servers accept, but only if we can first rename the
68 file to a temporary name). Add experimental support for more safely
69 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
70 sends, and also let tcp autotune the socket send and receive buffers.
71 This reduces the number of EAGAIN errors returned by TCP/IP in
72 high stress workloads (and the number of retries on socket writes
73 when sending large SMBWriteX requests). Fix case in which a portion of
74 data can in some cases not get written to the file on the server before the
75 file is closed. Fix DFS parsing to properly handle path consumed field,
76 and to handle certain codepage conversions better. Fix mount and
77 umount race that can cause oops in mount or umount or reconnect.
81 Fix premature write failure on congested networks (we would give up
82 on EAGAIN from the socket too quickly on large writes).
83 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
84 Fix endian problems in acl (mode from/to cifs acl) on bigendian
85 architectures. Fix problems with preserving timestamps on copying open
86 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
87 on parent directory when server supports Unix Extensions but not POSIX
88 create. Update cifs.upcall version to handle new Kerberos sec flags
89 (this requires update of cifs.upcall program from Samba). Fix memory leak
90 on dns_upcall (resolving DFS referralls). Fix plain text password
91 authentication (requires setting SecurityFlags to 0x30030 to enable
92 lanman and plain text though). Fix writes to be at correct offset when
93 file is open with O_APPEND and file is on a directio (forcediretio) mount.
94 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
98 DFS support added (Microsoft Distributed File System client support needed
99 for referrals which enable a hierarchical name space among servers).
100 Disable temporary caching of mode bits to servers which do not support
101 storing of mode (e.g. Windows servers, when client mounts without cifsacl
102 mount option) and add new "dynperm" mount option to enable temporary caching
103 of mode (enable old behavior). Fix hang on mount caused when server crashes
104 tcp session during negotiate protocol.
108 Fix oops on second mount to server when null auth is used.
109 Enable experimental Kerberos support. Return writebehind errors on flush
110 and sync so that events like out of disk space get reported properly on
111 cached files. Fix setxattr failure to certain Samba versions. Fix mount
112 of second share to disconnected server session (autoreconnect on this).
113 Add ability to modify cifs acls for handling chmod (when mounted with
114 cifsacl flag). Fix prefixpath path separator so we can handle mounts
115 with prefixpaths longer than one directory (one path component) when
116 mounted to Windows servers. Fix slow file open when cifsacl
117 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
122 Fix memory leak in statfs when mounted to very old servers (e.g.
123 Windows 9x). Add new feature "POSIX open" which allows servers
124 which support the current POSIX Extensions to provide better semantics
125 (e.g. delete for open files opened with posix open). Take into
126 account umask on posix mkdir not just older style mkdir. Add
127 ability to mount to IPC$ share (which allows CIFS named pipes to be
128 opened, read and written as if they were files). When 1st tree
129 connect fails (e.g. due to signing negotiation failure) fix
130 leak that causes cifsd not to stop and rmmod to fail to cleanup
131 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
132 bigendian architectures. Fix possible memory corruption when
133 EAGAIN returned on kern_recvmsg. Return better error if server
134 requires packet signing but client has disabled it. When mounted
135 with cifsacl mount option - mode bits are approximated based
136 on the contents of the ACL of the file or directory. When cifs
137 mount helper is missing convert make sure that UNC name
138 has backslash (not forward slash) between ip address of server
143 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
144 done with "serverino" mount option). Add support for POSIX Unlink
145 (helps with certain sharing violation cases when server such as
146 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
147 mount option to allow disabling the CIFS Unix Extensions for just
148 that mount. Fix hang on spinlock in find_writable_file (race when
149 reopening file after session crash). Byte range unlock request to
150 windows server could unlock more bytes (on server copy of file)
151 than intended if start of unlock request is well before start of
152 a previous byte range lock that we issued.
156 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
157 address after the "ip=" mount option, at least until mount.cifs is fixed to
158 handle DNS host to ipv6 name translation). Accept override of uid or gid
159 on mount even when Unix Extensions are negotiated (it used to be ignored
160 when Unix Extensions were ignored). This allows users to override the
161 default uid and gid for files when they are certain that the uids or
162 gids on the server do not match those of the client. Make "sec=none"
163 mount override username (so that null user connection is attempted)
164 to match what documentation said. Support for very large reads, over 127K,
165 available to some newer servers (such as Samba 3.0.26 and later but
166 note that it also requires setting CIFSMaxBufSize at module install
167 time to a larger value which may hurt performance in some cases).
168 Make sign option force signing (or fail if server does not support it).
172 Fix mtime bouncing around from local idea of last write times to remote time.
173 Fix hang (in i_size_read) when simultaneous size update of same remote file
174 on smp system corrupts sequence number. Do not reread unnecessarily partial page
175 (which we are about to overwrite anyway) when writing out file opened rw.
176 When DOS attribute of file on non-Unix server's file changes on the server side
177 from read-only back to read-write, reflect this change in default file mode
178 (we had been leaving a file's mode read-only until the inode were reloaded).
179 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
180 when archive dos attribute not set and we are changing mode back to writeable
181 on server which does not support the Unix Extensions). Remove read only dos
182 attribute on chmod when adding any write permission (ie on any of
183 user/group/other (not all of user/group/other ie 0222) when
184 mounted to windows. Add support for POSIX MkDir (slight performance
185 enhancement and eliminates the network race between the mkdir and set
186 path info of the mode).
191 Fix oops in list_del during mount caused by unaligned string.
192 Fix file corruption which could occur on some large file
193 copies caused by writepages page i/o completion bug.
194 Seek to SEEK_END forces check for update of file size for non-cached
195 files. Allow file size to be updated on remote extend of locally open,
196 non-cached file. Fix reconnect to newer Samba servers (or other servers
197 which support the CIFS Unix/POSIX extensions) so that we again tell the
198 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
199 Add experimental support for new POSIX Open/Mkdir (which returns
200 stat information on the open, and allows setting the mode).
204 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
205 Allow null user to be specified on mount ("username="). Do not return
206 EINVAL on readdir when filldir fails due to overwritten blocksize
207 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
208 if rename by handle also fails, after rename by path fails, we were
209 not reporting whether the retry worked or not). Fix NTLMv2 to
210 work to Windows servers (mount with option "sec=ntlmv2").
214 Do not time out lockw calls when using posix extensions. Do not
215 time out requests if server still responding reasonably fast
216 on requests on other threads. Improve POSIX locking emulation,
217 (lock cancel now works, and unlock of merged range works even
218 to Windows servers now). Fix oops on mount to lanman servers
219 (win9x, os/2 etc.) when null password. Do not send listxattr
220 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
221 problem (instantiate inodes/dentries in right order for readdir).
225 Rewritten sessionsetup support, including support for legacy SMB
226 session setup needed for OS/2 and older servers such as Windows 95 and 98.
227 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
228 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
229 or recent levels of FindFirst unless server says it supports NT SMBs
230 (instead use legacy equivalents from LANMAN dialect). Fix to allow
231 NTLMv2 authentication support (now can use stronger password hashing
232 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
233 Allow override of global cifs security flags on mount via "sec=" option(s).
237 POSIX locking to servers which support CIFS POSIX Extensions
238 (disabled by default controlled by proc/fs/cifs/Experimental).
239 Handle conversion of long share names (especially Asian languages)
240 to Unicode during mount. Fix memory leak in sess struct on reconnect.
241 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
242 cifs open which helps rare case when setpathinfo fails or server does
247 Fix slow oplock break when mounted to different servers at the same time and
248 the tids match and we try to find matching fid on wrong server. Fix read
249 looping when signing required by server (2.6.16 kernel only). Fix readdir
250 vs. rename race which could cause each to hang. Return . and .. even
251 if server does not. Allow searches to skip first three entries and
252 begin at any location. Fix oops in find_writeable_file.
256 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
257 configure stronger authentication. Fix sfu symlinks so they can
258 be followed (not just recognized). Fix wraparound of bcc on
259 read responses when buffer size over 64K and also fix wrap of
260 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
261 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
262 on socket is returned over and over). Add POSIX (advisory) byte range
263 locking support (requires server with newest CIFS UNIX Extensions
264 to the protocol implemented). Slow down negprot slightly in port 139
265 RFC1001 case to give session_init time on buggy servers.
269 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
270 of readpages by eliminating one extra memcpy. Allow update of file size
271 from remote server even if file is open for write as long as mount is
272 directio. Recognize share mode security and send NTLM encrypted password
273 on tree connect if share mode negotiated.
277 Defer close of a file handle slightly if pending writes depend on that handle
278 (this reduces the EBADF bad file handle errors that can be logged under heavy
279 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
280 Fix SFU style symlinks and mknod needed for servers which do not support the
281 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
282 dentries so files that the client sees as deleted but that later get created
283 on the server will be recognized. Add client side permission check on setattr.
284 Timeout stuck requests better (where server has never responded or sent corrupt
289 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
290 to be smaller at first (but increasing) so large write performance performance
291 over GigE is better. Do not hang thread on illegal byte range lock response
292 from Windows (Windows can send an RFC1001 size which does not match smb size) by
293 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
294 wsize and rsize can now be larger than negotiated buffer size if server
295 supports large readx/writex, even when directio mount flag not specified.
296 Write size will in many cases now be 16K instead of 4K which greatly helps
297 file copy performance on lightly loaded networks. Fix oops in dnotify
298 when experimental config flag enabled. Make cifsFYI more granular.
302 Fix readdir caching when unlink removes file in current search buffer,
303 and this is followed by a rewind search to just before the deleted entry.
304 Do not attempt to set ctime unless atime and/or mtime change requested
305 (most servers throw it away anyway). Fix length check of received smbs
306 to be more accurate. Fix big endian problem with mapchars mount option,
307 and with a field returned by statfs.
311 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
312 For these older servers, add option for passing netbios name of server in
313 on mount (servernetbiosname). Add suspend support for power management, to
314 avoid cifsd thread preventing software suspend from working.
315 Add mount option for disabling the default behavior of sending byte range lock
316 requests to the server (necessary for certain applications which break with
317 mandatory lock behavior such as Evolution), and also mount option for
318 requesting case insensitive matching for path based requests (requesting
319 case sensitive is the default).
323 Add writepage performance improvements. Fix path name conversions
324 for long filenames on mounts which were done with "mapchars" mount option
325 specified. Ensure multiplex ids do not collide. Fix case in which
326 rmmod can oops if done soon after last unmount. Fix truncated
327 search (readdir) output when resume filename was a long filename.
328 Fix filename conversion when mapchars mount option was specified and
329 filename was a long filename.
333 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
334 Do not oops if root user kills cifs oplock kernel thread or
335 kills the cifsd thread (NB: killing the cifs kernel threads is not
336 recommended, unmount and rmmod cifs will kill them when they are
337 no longer needed). Fix readdir to ASCII servers (ie older servers
338 which do not support Unicode) and also require asterisk.
339 Fix out of memory case in which data could be written one page
340 off in the page cache.
344 Fix caching problem, in which readdir of directory containing a file
345 which was cached could cause the file's time stamp to be updated
346 without invalidating the readahead data (so we could get stale
347 file data on the client for that file even as the server copy changed).
348 Cleanup response processing so cifsd can not loop when abnormally
354 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
355 transact response for an SMB request and search entry split across two frames.
356 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
357 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
358 unless server explicitly claims to support them in CIFS Unix extensions
359 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
360 different users from the same client to the same server. Fix oops in
361 cifs_close. Add mount option for remapping reserved characters in
362 filenames (also allow recognizing files with created by SFU which have any
363 of these seven reserved characters, except backslash, to be recognized).
364 Fix invalid transact2 message (we were sometimes trying to interpret
365 oplock breaks as SMB responses). Add ioctl for checking that the
366 current uid matches the uid of the mounter (needed by umount.cifs).
367 Reduce the number of large buffer allocations in cifs response processing
368 (significantly reduces memory pressure under heavy stress with multiple
369 processes accessing the same server at the same time).
373 Fix updates of DOS attributes and time fields so that files on NT4 servers
374 do not get marked delete on close. Display sizes of cifs buffer pools in
375 cifs stats. Fix oops in unmount when cifsd thread being killed by
376 shutdown. Add generic readv/writev and aio support. Report inode numbers
377 consistently in readdir and lookup (when serverino mount option is
378 specified use the inode number that the server reports - for both lookup
379 and readdir, otherwise by default the locally generated inode number is used
380 for inodes created in either path since servers are not always able to
381 provide unique inode numbers when exporting multiple volumes from under one
386 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
387 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
388 (mostly affects NT4 servers) by retry with handle based network operation.
389 Add new POSIX Query FS Info for returning statfs info more accurately.
390 Handle passwords with multiple commas in them.
394 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
395 Fix capabilities flags for large readx so as to allow reads larger than 64K.
399 Add module init parm for large SMB buffer size (to allow it to be changed
400 from its default of 16K) which is especially useful for large file copy
401 when mounting with the directio mount option. Fix oops after
402 returning from mount when experimental ExtendedSecurity enabled and
403 SpnegoNegotiated returning invalid error. Fix case to retry better when
404 peek returns from 1 to 3 bytes on socket which should have more data.
405 Fixed path based calls (such as cifs lookup) to handle path names
406 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
407 from Samba server to DC (Samba required dummy LM password).
411 Turn off DNOTIFY (directory change notification support) by default
412 (unless built with the experimental flag) to fix hang with KDE
413 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
414 waiting on an SMB response) in SendReceive when session dies but
415 reconnects quickly from another task. Add module init parms for
416 minimum number of large and small network buffers in the buffer pools,
417 and for the maximum number of simultaneous requests.
421 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
422 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
423 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
424 improperly zeroed buffer in CIFS Unix extensions set times call.
428 Fix internationalization problem in cifs readdir with filenames that map to
429 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
430 for readdir to netapp servers. Fix search rewind (seek into readdir to return
431 non-consecutive entries). Do not do readdir when server negotiates
432 buffer size to small to fit filename. Add support for reading POSIX ACLs from
433 the server (add also acl and noacl mount options).
437 Optionally allow using server side inode numbers, rather than client generated
438 ones by specifying mount option "serverino" - this is required for some apps
439 to work which double check hardlinked files and have persistent inode numbers.
443 Multiple bigendian fixes. On little endian systems (for reconnect after
444 network failure) fix tcp session reconnect code so we do not try first
445 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
446 as directories rather than symlinks because we can do follow link on them.
450 Add config option to enable XATTR (extended attribute) support, mapping
451 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
452 minor fixes pointed out by the Stanford SWAT checker (mostly missing
453 or out of order NULL pointer checks in little used error paths).
457 Add new mount parm to control whether mode check (generic_permission) is done
458 on the client. If Unix extensions are enabled and the uids on the client
459 and server do not match, client permission checks are meaningless on
460 server uids that do not exist on the client (this does not affect the
461 normal ACL check which occurs on the server). Fix default uid
462 on mknod to match create and mkdir. Add optional mount parm to allow
463 override of the default uid behavior (in which the server sets the uid
464 and gid of newly created files). Normally for network filesystem mounts
465 user want the server to set the uid/gid on newly created files (rather than
466 using uid of the client processes you would in a local filesystem).
470 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
471 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
472 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
473 (block/char/fifo) properly. Remove spurious mount warning log entry when
474 credentials passed as mount argument. Set major/minor device number in
475 inode for block and char devices when unix extensions enabled.
479 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
480 amounts of return data. Properly limit requests to MAX_REQ (50
481 is the usual maximum active multiplex SMB/CIFS requests per server).
482 Do not kill cifsd (and thus hurt the other SMB session) when more than one
483 session to the same server (but with different userids) exists and one
484 of the two user's smb sessions is being removed while leaving the other.
485 Do not loop reconnecting in cifsd demultiplex thread when admin
486 kills the thread without going through unmount.
490 Do not rename hardlinked files (since that should be a noop). Flush
491 cached write behind data when reopening a file after session abend,
492 except when already in write. Grab per socket sem during reconnect
493 to avoid oops in sendmsg if overlapping with reconnect. Do not
494 reset cached inode file size on readdir for files open for write on
500 Update number of blocks in file so du command is happier (in Linux a fake
501 blocksize of 512 is required for calculating number of blocks in inode).
502 Fix prepare write of partial pages to read in data from server if possible.
503 Fix race on tcpStatus field between unmount and reconnection code, causing
504 cifsd process sometimes to hang around forever. Improve out of memory
505 checks in cifs_filldir
509 Fix incorrect file size in file handle based setattr on big endian hardware.
510 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
511 and closing file structs in writepage/partialpagewrite. Add statistics
512 for each mounted share (new menuconfig option). Fix endianness problem in
513 volume information displayed in /proc/fs/cifs/DebugData (only affects
514 affects big endian architectures). Prevent renames while constructing
515 path names for open, mkdir and rmdir.
519 Change to mempools for alloc smb request buffers and multiplex structs
520 to better handle low memory problems (and potential deadlocks).
524 Fix incomplete listings of large directories on Samba servers when Unix
525 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
526 rename deadlock when writing out dirty pages at same time.
530 Fix open of files in which O_CREATE can cause the mode to change in
531 some cases. Fix case in which retry of write overlaps file close.
532 Fix PPC64 build error. Reduce excessive stack usage in smb password
533 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
537 Fixes for large file copy, signal handling, socket retry, buffer
538 allocation and low memory situations.
542 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
543 also now allowing support for specifying client netbiosname. NT4 support added.
547 Fix reconnection (and certain failed mounts) to properly wake up the
548 blocked users thread so it does not seem hung (in some cases was blocked
549 until the cifs receive timeout expired). Fix spurious error logging
550 to kernel log when application with open network files killed.
554 Fix /proc/fs module unload warning message (that could be logged
555 to the kernel log). Fix intermittent failure in connectathon
556 test7 (hardlink count not immediately refreshed in case in which
557 inode metadata can be incorrectly kept cached when time near zero)
561 Allow file_mode and dir_mode (specified at mount time) to be enforced
562 locally (the server already enforced its own ACLs too) for servers
563 that do not report the correct mode (do not support the
564 CIFS Unix Extensions).
568 Fix some small memory leaks in some unmount error paths. Fix major leak
569 of cache pages in readpages causing multiple read oriented stress
570 testcases (including fsx, and even large file copy) to fail over time.
574 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
575 This allows files that differ only in case and improves performance of file
576 creation and file open to such servers. Fix semaphore conflict which causes
577 slow delete of open file to Samba (which unfortunately can cause an oplock
578 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
582 fixes to cifs_readpages for fsx test case
586 Fix caching data integrity bug when extending file size especially when no
587 oplock on file. Fix spurious logging of valid already parsed mount options
588 that are parsed outside of the cifs vfs such as nosuid.
593 Connect to server when port number override not specified, and tcp port
594 unitialized. Reset search to restart at correct file when kernel routine
595 filldir returns error during large directory searches (readdir).
599 Fix caching problem when files opened by multiple clients in which
600 page cache could contain stale data, and write through did
601 not occur often enough while file was still open when read ahead
602 (read oplock) not allowed. Treat "sep=" when first mount option
603 as an override of comma as the default separator between mount
608 Allow passwords longer than 16 bytes. Allow null password string.
612 Gracefully clean up failed mounts when attempting to mount to servers such as
613 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
614 embedded commas in mount parsing of passwords.
618 Invalidate local inode cached pages on oplock break and when last file
619 instance is closed so that the client does not continue using stale local
620 copy rather than later modified server copy of file. Do not reconnect
621 when server drops the tcp session prematurely before negotiate
622 protocol response. Fix oops in reopen_file when dentry freed. Allow
623 the support for CIFS Unix Extensions to be disabled via proc interface.
627 Fix hang in commit_write during reconnection of open files under heavy load.
628 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
629 which also fixes any possible races when cifs signatures are enabled in SMBs
630 being sent out of signature sequence number order.
634 Fix byte range locking bug (endian problem) causing bad offset and
639 Fix oops (in send_sig) caused by CIFS unmount code trying to
640 wake up the demultiplex thread after it had exited. Do not log
641 error on harmless oplock release of closed handle.
645 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
646 Fix problem reconnecting secondary mounts to same server after session
647 failure. Fix invalid dentry - race in mkdir when directory gets created
648 by another client between the lookup and mkdir.
652 Fix to list processing in reopen_files. Fix reconnection when server hung
653 but tcpip session still alive. Set proper timeout on socket read.
657 Add missing mount options including iocharset. SMP fixes in write and open.
658 Fix errors in reconnecting after TCP session failure. Fix module unloading
659 of default nls codepage
663 Active smb transactions should never go negative (fix double FreeXid). Fix
664 list processing in file routines. Check return code on kmalloc in open.
665 Fix spinlock usage for SMP.
669 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
670 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
671 on create hard link when server does not support them.
675 Fix scheduling while atomic error in getting inode info on newly created file.
676 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
680 Fix oops on write to dead tcp session. Remove error log write for case when file open
681 O_CREAT but not O_EXCL
685 Fix non-POSIX behavior on rename of open file and delete of open file by taking
686 advantage of trans2 SetFileInfo rename facility if available on target server.
687 Retry on ENOSPC and EAGAIN socket errors.
691 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
692 allocation size miscalculation. After oplock token lost do not read through
697 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
701 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
702 during auto reconnection to server after server recovered from failure.
706 Finish support for Linux 2.5 open/create changes, which removes the
707 redundant NTCreate/QPathInfo/close that was sent during file create.
708 Enable oplock by default. Enable packet signing by default (needed to
709 access many recent Windows servers)
713 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
714 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
715 we will choose a cifs user session (smb uid) that better matches the local
716 uid if a) the mount uid does not match the current uid and b) we have another
717 session to the same server (ip address) for a different mount which
718 matches the current local uid.
722 Add support for mknod of block or character devices. Fix oplock
723 code (distributed caching) to properly send response to oplock
728 Finish up CIFS packet digital signing for the default
729 NTLM security case. This should help Windows 2003
730 network interoperability since it is common for
731 packet signing to be required now. Fix statfs (stat -f)
732 which recently started returning errors due to
733 invalid value (-1 instead of 0) being set in the
734 struct kstatfs f_ffiles field.
738 Fix oops on stopping oplock thread when removing cifs when
743 Fix mount options for ro (readonly), uid, gid and file and directory mode.
747 Fix errors displayed on failed mounts to be more understandable.
748 Fixed various incorrect or misleading smb to posix error code mappings.
752 Fix display of NTFS DFS junctions to display as symlinks.
753 They are the network equivalent. Fix oops in
754 cifs_partialpagewrite caused by missing spinlock protection
755 of openfile linked list. Allow writebehind caching errors to
756 be returned to the application at file close.
760 Clean up options displayed in /proc/mounts by show_options to
761 be more consistent with other filesystems.
765 Fix delete of readonly file to Windows servers. Reflect
766 presence or absence of read only dos attribute in mode
767 bits for servers that do not support CIFS Unix extensions.
768 Fix shortened results on readdir of large directories to
769 servers supporting CIFS Unix extensions (caused by
770 incorrect resume key).
774 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
778 unload nls if mount fails.
782 Add resume key support to search (readdir) code to workaround
783 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
784 allows disabling caching of attribute information for
789 Add more oplock handling (distributed caching code). Remove
790 dead code. Remove excessive stack space utilization from
795 Fix oops in get dfs referral (triggered when null path sent in to
796 mount). Add support for overriding rsize at mount time.
800 Fix buffer overrun in readdir which caused intermittent kernel oopses.
801 Fix writepage code to release kmap on write data. Allow "-ip=" new
802 mount option to be passed in on parameter distinct from the first part
803 (server name portion of) the UNC name. Allow override of the
804 tcp port of the target server via new mount option "-port="
808 Fix search handle leak on rewind. Fix setuid and gid so that they are
809 reflected in the local inode immediately. Cleanup of whitespace
810 to make 2.4 and 2.5 versions more consistent.
815 Fix signal sending so that captive thread (cifsd) exits on umount
816 (which was causing the warning in kmem_cache_free of the request buffers
817 at rmmod time). This had broken as a sideeffect of the recent global
818 kernel change to daemonize. Fix memory leak in readdir code which
819 showed up in "ls -R" (and applications that did search rewinding).
823 Reconnect tids and fids after session reconnection (still do not
824 reconnect byte range locks though). Fix problem caching
825 lookup information for directory inodes, improving performance,
826 especially in deep directory trees. Fix various build warnings.
830 Finish fixes to commit write for caching/readahead consistency. fsx
831 now works to Samba servers. Fix oops caused when readahead
832 was interrupted by a signal.
836 Fix data corruption (in partial page after truncate) that caused fsx to
837 fail to Windows servers. Cleaned up some extraneous error logging in
838 common error paths. Add generic sendfile support.
842 Fix memory leak in AllocMidQEntry.
843 Finish reconnection logic, so connection with server can be dropped
844 (or server rebooted) and the cifs client will reconnect.
848 Fix temporary socket leak when bad userid or password specified
849 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
850 over 16K to allow negotiation of up to Samba and Windows server default read
851 sizes. Add support for readpages
855 Fix oops when username not passed in on mount. Extensive fixes and improvements
856 to error logging (strip redundant newlines, change debug macros to ensure newline
857 passed in and to be more consistent). Fix writepage wrong file handle problem,
858 a readonly file handle could be incorrectly used to attempt to write out
859 file updates through the page cache to multiply open files. This could cause
860 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
861 shares to the same Windows server when using different usernames
862 (doing this to Samba servers worked but Windows was rejecting it) - now it is
863 possible to use different userids when connecting to the same server from a
864 Linux client. Fix oops when treeDisconnect called during unmount on
865 previously freed socket.
869 Fix oops in readpages caused by not setting address space operations in inode in
874 Includes support for deleting of open files and renaming over existing files (per POSIX
875 requirement). Add readlink support for Windows junction points (directory symlinks).
879 Changed read and write to go through pagecache. Added additional address space operations.
880 Memory mapped operations now working.
884 Added writepage code for additional memory mapping support. Fixed leak in xids causing
885 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
886 every stat call. Additional formatting cleanup.
890 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
894 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
895 Also included a modified version of his fix to protect global list manipulation of
896 the smb session and tree connection and mid related global variables.
900 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
901 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
902 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
906 More stylistic updates to better match kernel style. Add additional statistics
907 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
908 and CIFS Packet Signing enablement.
912 Replace call to sleep_on with safer wait_on_event.
913 Make stylistic changes to better match kernel style recommendations.
914 Remove most typedef usage (except for the PDUs themselves).
918 Update mount so the -unc mount option is no longer required (the ip address can be specified
919 in a UNC style device name. Implementation of readpage/writepage started.
923 Fix intermittent problem with incorrect smb header checking on badly
924 fragmented tcp responses
928 Fixes to setting of allocation size and file size.
932 Various 2.5.38 fixes. Now works on 2.5.38
936 Prepare for 2.5 kernel merge. Remove ifdefs.
940 Socket buffer management fixes. Fix dual free.
944 Various big endian fixes for hardlinks and symlinks and also for dfs.
948 Various big endian fixes for servers with Unix extensions such as Samba
952 Various FindNext fixes for incorrect filenames on large directory searches on big endian
953 clients. basic posix file i/o tests now work on big endian machines, not just le
957 SessionSetup and NegotiateProtocol now work from Big Endian machines.
958 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
959 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
963 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
964 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
968 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
969 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
970 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
971 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
975 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
976 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
980 Rewrote much of connection and mount/unmount logic to handle bugs with
981 multiple uses to same share, multiple users to same server etc.
985 Fixed major problem with dentry corruption (missing call to dput)
989 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
990 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
991 although corresponding function not fully implemented in the vfs yet
995 Fixed dentry caching bug, misc. cleanup
999 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
1000 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
1001 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
1005 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
1006 and tested against Samba 2.2.5
1011 1) Fixed lockrange to be correct (it was one byte too short)
1013 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
1014 show range as locked when there is a conflict with an existing lock.
1016 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
1017 in most cases. Eventually will offer optional ability to query server for the correct perms.
1019 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
1020 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
1023 4) Fixed error logging of valid mount options
1025 5) Removed logging of password field.
1027 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
1028 and cleaned them up and made them more consistent with other cifs functions.
1030 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
1031 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
1032 nor is the symlink support using the Unix extensions
1034 8) Started adding the readlink and follow_link code
git.openpandora.org / pandora-kernel.git / blob