3 Improve support for multiple security contexts to the same server. We
4 used to use the same "vcnumber" for all connections which could cause
5 the server to treat subsequent connections, especially those that
6 are authenticated as guest, as reconnections, invalidating the earlier
7 user's smb session. This fix allows cifs to mount multiple times to the
8 same server with different userids without risking invalidating earlier
9 established security contexts.
13 Add "forcemandatorylock" mount option to allow user to use mandatory
14 rather than posix (advisory) byte range locks, even though server would
15 support posix byte range locks. Fix query of root inode when prefixpath
16 specified and user does not have access to query information about the
17 top of the share. Fix problem in 2.6.28 resolving DFS paths to
18 Samba servers (worked to Windows). Fix rmdir so that pending search
19 (readdir) requests do not get invalid results which include the now
20 removed directory. Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
21 when using DFS. Add better file create support to servers which support
22 the CIFS POSIX protocol extensions (this adds support for new flags
23 on create, and improves semantics for write of locked ranges).
27 Various fixes to make delete of open files behavior more predictable
28 (when delete of an open file fails we mark the file as "delete-on-close"
29 in a way that more servers accept, but only if we can first rename the
30 file to a temporary name). Add experimental support for more safely
31 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
32 sends, and also let tcp autotune the socket send and receive buffers.
33 This reduces the number of EAGAIN errors returned by TCP/IP in
34 high stress workloads (and the number of retries on socket writes
35 when sending large SMBWriteX requests). Fix case in which a portion of
36 data can in some cases not get written to the file on the server before the
37 file is closed. Fix DFS parsing to properly handle path consumed field,
38 and to handle certain codepage conversions better. Fix mount and
39 umount race that can cause oops in mount or umount or reconnect.
43 Fix premature write failure on congested networks (we would give up
44 on EAGAIN from the socket too quickly on large writes).
45 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
46 Fix endian problems in acl (mode from/to cifs acl) on bigendian
47 architectures. Fix problems with preserving timestamps on copying open
48 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
49 on parent directory when server supports Unix Extensions but not POSIX
50 create. Update cifs.upcall version to handle new Kerberos sec flags
51 (this requires update of cifs.upcall program from Samba). Fix memory leak
52 on dns_upcall (resolving DFS referralls). Fix plain text password
53 authentication (requires setting SecurityFlags to 0x30030 to enable
54 lanman and plain text though). Fix writes to be at correct offset when
55 file is open with O_APPEND and file is on a directio (forcediretio) mount.
56 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
60 DFS support added (Microsoft Distributed File System client support needed
61 for referrals which enable a hierarchical name space among servers).
62 Disable temporary caching of mode bits to servers which do not support
63 storing of mode (e.g. Windows servers, when client mounts without cifsacl
64 mount option) and add new "dynperm" mount option to enable temporary caching
65 of mode (enable old behavior). Fix hang on mount caused when server crashes
66 tcp session during negotiate protocol.
70 Fix oops on second mount to server when null auth is used.
71 Enable experimental Kerberos support. Return writebehind errors on flush
72 and sync so that events like out of disk space get reported properly on
73 cached files. Fix setxattr failure to certain Samba versions. Fix mount
74 of second share to disconnected server session (autoreconnect on this).
75 Add ability to modify cifs acls for handling chmod (when mounted with
76 cifsacl flag). Fix prefixpath path separator so we can handle mounts
77 with prefixpaths longer than one directory (one path component) when
78 mounted to Windows servers. Fix slow file open when cifsacl
79 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
84 Fix memory leak in statfs when mounted to very old servers (e.g.
85 Windows 9x). Add new feature "POSIX open" which allows servers
86 which support the current POSIX Extensions to provide better semantics
87 (e.g. delete for open files opened with posix open). Take into
88 account umask on posix mkdir not just older style mkdir. Add
89 ability to mount to IPC$ share (which allows CIFS named pipes to be
90 opened, read and written as if they were files). When 1st tree
91 connect fails (e.g. due to signing negotiation failure) fix
92 leak that causes cifsd not to stop and rmmod to fail to cleanup
93 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
94 bigendian architectures. Fix possible memory corruption when
95 EAGAIN returned on kern_recvmsg. Return better error if server
96 requires packet signing but client has disabled it. When mounted
97 with cifsacl mount option - mode bits are approximated based
98 on the contents of the ACL of the file or directory. When cifs
99 mount helper is missing convert make sure that UNC name
100 has backslash (not forward slash) between ip address of server
105 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
106 done with "serverino" mount option). Add support for POSIX Unlink
107 (helps with certain sharing violation cases when server such as
108 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
109 mount option to allow disabling the CIFS Unix Extensions for just
110 that mount. Fix hang on spinlock in find_writable_file (race when
111 reopening file after session crash). Byte range unlock request to
112 windows server could unlock more bytes (on server copy of file)
113 than intended if start of unlock request is well before start of
114 a previous byte range lock that we issued.
118 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
119 address after the "ip=" mount option, at least until mount.cifs is fixed to
120 handle DNS host to ipv6 name translation). Accept override of uid or gid
121 on mount even when Unix Extensions are negotiated (it used to be ignored
122 when Unix Extensions were ignored). This allows users to override the
123 default uid and gid for files when they are certain that the uids or
124 gids on the server do not match those of the client. Make "sec=none"
125 mount override username (so that null user connection is attempted)
126 to match what documentation said. Support for very large reads, over 127K,
127 available to some newer servers (such as Samba 3.0.26 and later but
128 note that it also requires setting CIFSMaxBufSize at module install
129 time to a larger value which may hurt performance in some cases).
130 Make sign option force signing (or fail if server does not support it).
134 Fix mtime bouncing around from local idea of last write times to remote time.
135 Fix hang (in i_size_read) when simultaneous size update of same remote file
136 on smp system corrupts sequence number. Do not reread unnecessarily partial page
137 (which we are about to overwrite anyway) when writing out file opened rw.
138 When DOS attribute of file on non-Unix server's file changes on the server side
139 from read-only back to read-write, reflect this change in default file mode
140 (we had been leaving a file's mode read-only until the inode were reloaded).
141 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
142 when archive dos attribute not set and we are changing mode back to writeable
143 on server which does not support the Unix Extensions). Remove read only dos
144 attribute on chmod when adding any write permission (ie on any of
145 user/group/other (not all of user/group/other ie 0222) when
146 mounted to windows. Add support for POSIX MkDir (slight performance
147 enhancement and eliminates the network race between the mkdir and set
148 path info of the mode).
153 Fix oops in list_del during mount caused by unaligned string.
154 Fix file corruption which could occur on some large file
155 copies caused by writepages page i/o completion bug.
156 Seek to SEEK_END forces check for update of file size for non-cached
157 files. Allow file size to be updated on remote extend of locally open,
158 non-cached file. Fix reconnect to newer Samba servers (or other servers
159 which support the CIFS Unix/POSIX extensions) so that we again tell the
160 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
161 Add experimental support for new POSIX Open/Mkdir (which returns
162 stat information on the open, and allows setting the mode).
166 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
167 Allow null user to be specified on mount ("username="). Do not return
168 EINVAL on readdir when filldir fails due to overwritten blocksize
169 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
170 if rename by handle also fails, after rename by path fails, we were
171 not reporting whether the retry worked or not). Fix NTLMv2 to
172 work to Windows servers (mount with option "sec=ntlmv2").
176 Do not time out lockw calls when using posix extensions. Do not
177 time out requests if server still responding reasonably fast
178 on requests on other threads. Improve POSIX locking emulation,
179 (lock cancel now works, and unlock of merged range works even
180 to Windows servers now). Fix oops on mount to lanman servers
181 (win9x, os/2 etc.) when null password. Do not send listxattr
182 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
183 problem (instantiate inodes/dentries in right order for readdir).
187 Rewritten sessionsetup support, including support for legacy SMB
188 session setup needed for OS/2 and older servers such as Windows 95 and 98.
189 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
190 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
191 or recent levels of FindFirst unless server says it supports NT SMBs
192 (instead use legacy equivalents from LANMAN dialect). Fix to allow
193 NTLMv2 authentication support (now can use stronger password hashing
194 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
195 Allow override of global cifs security flags on mount via "sec=" option(s).
199 POSIX locking to servers which support CIFS POSIX Extensions
200 (disabled by default controlled by proc/fs/cifs/Experimental).
201 Handle conversion of long share names (especially Asian languages)
202 to Unicode during mount. Fix memory leak in sess struct on reconnect.
203 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
204 cifs open which helps rare case when setpathinfo fails or server does
209 Fix slow oplock break when mounted to different servers at the same time and
210 the tids match and we try to find matching fid on wrong server. Fix read
211 looping when signing required by server (2.6.16 kernel only). Fix readdir
212 vs. rename race which could cause each to hang. Return . and .. even
213 if server does not. Allow searches to skip first three entries and
214 begin at any location. Fix oops in find_writeable_file.
218 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
219 configure stronger authentication. Fix sfu symlinks so they can
220 be followed (not just recognized). Fix wraparound of bcc on
221 read responses when buffer size over 64K and also fix wrap of
222 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
223 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
224 on socket is returned over and over). Add POSIX (advisory) byte range
225 locking support (requires server with newest CIFS UNIX Extensions
226 to the protocol implemented). Slow down negprot slightly in port 139
227 RFC1001 case to give session_init time on buggy servers.
231 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
232 of readpages by eliminating one extra memcpy. Allow update of file size
233 from remote server even if file is open for write as long as mount is
234 directio. Recognize share mode security and send NTLM encrypted password
235 on tree connect if share mode negotiated.
239 Defer close of a file handle slightly if pending writes depend on that handle
240 (this reduces the EBADF bad file handle errors that can be logged under heavy
241 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
242 Fix SFU style symlinks and mknod needed for servers which do not support the
243 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
244 dentries so files that the client sees as deleted but that later get created
245 on the server will be recognized. Add client side permission check on setattr.
246 Timeout stuck requests better (where server has never responded or sent corrupt
251 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
252 to be smaller at first (but increasing) so large write performance performance
253 over GigE is better. Do not hang thread on illegal byte range lock response
254 from Windows (Windows can send an RFC1001 size which does not match smb size) by
255 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
256 wsize and rsize can now be larger than negotiated buffer size if server
257 supports large readx/writex, even when directio mount flag not specified.
258 Write size will in many cases now be 16K instead of 4K which greatly helps
259 file copy performance on lightly loaded networks. Fix oops in dnotify
260 when experimental config flag enabled. Make cifsFYI more granular.
264 Fix readdir caching when unlink removes file in current search buffer,
265 and this is followed by a rewind search to just before the deleted entry.
266 Do not attempt to set ctime unless atime and/or mtime change requested
267 (most servers throw it away anyway). Fix length check of received smbs
268 to be more accurate. Fix big endian problem with mapchars mount option,
269 and with a field returned by statfs.
273 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
274 For these older servers, add option for passing netbios name of server in
275 on mount (servernetbiosname). Add suspend support for power management, to
276 avoid cifsd thread preventing software suspend from working.
277 Add mount option for disabling the default behavior of sending byte range lock
278 requests to the server (necessary for certain applications which break with
279 mandatory lock behavior such as Evolution), and also mount option for
280 requesting case insensitive matching for path based requests (requesting
281 case sensitive is the default).
285 Add writepage performance improvements. Fix path name conversions
286 for long filenames on mounts which were done with "mapchars" mount option
287 specified. Ensure multiplex ids do not collide. Fix case in which
288 rmmod can oops if done soon after last unmount. Fix truncated
289 search (readdir) output when resume filename was a long filename.
290 Fix filename conversion when mapchars mount option was specified and
291 filename was a long filename.
295 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
296 Do not oops if root user kills cifs oplock kernel thread or
297 kills the cifsd thread (NB: killing the cifs kernel threads is not
298 recommended, unmount and rmmod cifs will kill them when they are
299 no longer needed). Fix readdir to ASCII servers (ie older servers
300 which do not support Unicode) and also require asterisk.
301 Fix out of memory case in which data could be written one page
302 off in the page cache.
306 Fix caching problem, in which readdir of directory containing a file
307 which was cached could cause the file's time stamp to be updated
308 without invalidating the readahead data (so we could get stale
309 file data on the client for that file even as the server copy changed).
310 Cleanup response processing so cifsd can not loop when abnormally
316 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
317 transact response for an SMB request and search entry split across two frames.
318 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
319 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
320 unless server explicitly claims to support them in CIFS Unix extensions
321 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
322 different users from the same client to the same server. Fix oops in
323 cifs_close. Add mount option for remapping reserved characters in
324 filenames (also allow recognizing files with created by SFU which have any
325 of these seven reserved characters, except backslash, to be recognized).
326 Fix invalid transact2 message (we were sometimes trying to interpret
327 oplock breaks as SMB responses). Add ioctl for checking that the
328 current uid matches the uid of the mounter (needed by umount.cifs).
329 Reduce the number of large buffer allocations in cifs response processing
330 (significantly reduces memory pressure under heavy stress with multiple
331 processes accessing the same server at the same time).
335 Fix updates of DOS attributes and time fields so that files on NT4 servers
336 do not get marked delete on close. Display sizes of cifs buffer pools in
337 cifs stats. Fix oops in unmount when cifsd thread being killed by
338 shutdown. Add generic readv/writev and aio support. Report inode numbers
339 consistently in readdir and lookup (when serverino mount option is
340 specified use the inode number that the server reports - for both lookup
341 and readdir, otherwise by default the locally generated inode number is used
342 for inodes created in either path since servers are not always able to
343 provide unique inode numbers when exporting multiple volumes from under one
348 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
349 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
350 (mostly affects NT4 servers) by retry with handle based network operation.
351 Add new POSIX Query FS Info for returning statfs info more accurately.
352 Handle passwords with multiple commas in them.
356 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
357 Fix capabilities flags for large readx so as to allow reads larger than 64K.
361 Add module init parm for large SMB buffer size (to allow it to be changed
362 from its default of 16K) which is especially useful for large file copy
363 when mounting with the directio mount option. Fix oops after
364 returning from mount when experimental ExtendedSecurity enabled and
365 SpnegoNegotiated returning invalid error. Fix case to retry better when
366 peek returns from 1 to 3 bytes on socket which should have more data.
367 Fixed path based calls (such as cifs lookup) to handle path names
368 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
369 from Samba server to DC (Samba required dummy LM password).
373 Turn off DNOTIFY (directory change notification support) by default
374 (unless built with the experimental flag) to fix hang with KDE
375 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
376 waiting on an SMB response) in SendReceive when session dies but
377 reconnects quickly from another task. Add module init parms for
378 minimum number of large and small network buffers in the buffer pools,
379 and for the maximum number of simultaneous requests.
383 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
384 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
385 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
386 improperly zeroed buffer in CIFS Unix extensions set times call.
390 Fix internationalization problem in cifs readdir with filenames that map to
391 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
392 for readdir to netapp servers. Fix search rewind (seek into readdir to return
393 non-consecutive entries). Do not do readdir when server negotiates
394 buffer size to small to fit filename. Add support for reading POSIX ACLs from
395 the server (add also acl and noacl mount options).
399 Optionally allow using server side inode numbers, rather than client generated
400 ones by specifying mount option "serverino" - this is required for some apps
401 to work which double check hardlinked files and have persistent inode numbers.
405 Multiple bigendian fixes. On little endian systems (for reconnect after
406 network failure) fix tcp session reconnect code so we do not try first
407 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
408 as directories rather than symlinks because we can do follow link on them.
412 Add config option to enable XATTR (extended attribute) support, mapping
413 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
414 minor fixes pointed out by the Stanford SWAT checker (mostly missing
415 or out of order NULL pointer checks in little used error paths).
419 Add new mount parm to control whether mode check (generic_permission) is done
420 on the client. If Unix extensions are enabled and the uids on the client
421 and server do not match, client permission checks are meaningless on
422 server uids that do not exist on the client (this does not affect the
423 normal ACL check which occurs on the server). Fix default uid
424 on mknod to match create and mkdir. Add optional mount parm to allow
425 override of the default uid behavior (in which the server sets the uid
426 and gid of newly created files). Normally for network filesystem mounts
427 user want the server to set the uid/gid on newly created files (rather than
428 using uid of the client processes you would in a local filesystem).
432 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
433 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
434 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
435 (block/char/fifo) properly. Remove spurious mount warning log entry when
436 credentials passed as mount argument. Set major/minor device number in
437 inode for block and char devices when unix extensions enabled.
441 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
442 amounts of return data. Properly limit requests to MAX_REQ (50
443 is the usual maximum active multiplex SMB/CIFS requests per server).
444 Do not kill cifsd (and thus hurt the other SMB session) when more than one
445 session to the same server (but with different userids) exists and one
446 of the two user's smb sessions is being removed while leaving the other.
447 Do not loop reconnecting in cifsd demultiplex thread when admin
448 kills the thread without going through unmount.
452 Do not rename hardlinked files (since that should be a noop). Flush
453 cached write behind data when reopening a file after session abend,
454 except when already in write. Grab per socket sem during reconnect
455 to avoid oops in sendmsg if overlapping with reconnect. Do not
456 reset cached inode file size on readdir for files open for write on
462 Update number of blocks in file so du command is happier (in Linux a fake
463 blocksize of 512 is required for calculating number of blocks in inode).
464 Fix prepare write of partial pages to read in data from server if possible.
465 Fix race on tcpStatus field between unmount and reconnection code, causing
466 cifsd process sometimes to hang around forever. Improve out of memory
467 checks in cifs_filldir
471 Fix incorrect file size in file handle based setattr on big endian hardware.
472 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
473 and closing file structs in writepage/partialpagewrite. Add statistics
474 for each mounted share (new menuconfig option). Fix endianness problem in
475 volume information displayed in /proc/fs/cifs/DebugData (only affects
476 affects big endian architectures). Prevent renames while constructing
477 path names for open, mkdir and rmdir.
481 Change to mempools for alloc smb request buffers and multiplex structs
482 to better handle low memory problems (and potential deadlocks).
486 Fix incomplete listings of large directories on Samba servers when Unix
487 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
488 rename deadlock when writing out dirty pages at same time.
492 Fix open of files in which O_CREATE can cause the mode to change in
493 some cases. Fix case in which retry of write overlaps file close.
494 Fix PPC64 build error. Reduce excessive stack usage in smb password
495 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
499 Fixes for large file copy, signal handling, socket retry, buffer
500 allocation and low memory situations.
504 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
505 also now allowing support for specifying client netbiosname. NT4 support added.
509 Fix reconnection (and certain failed mounts) to properly wake up the
510 blocked users thread so it does not seem hung (in some cases was blocked
511 until the cifs receive timeout expired). Fix spurious error logging
512 to kernel log when application with open network files killed.
516 Fix /proc/fs module unload warning message (that could be logged
517 to the kernel log). Fix intermittent failure in connectathon
518 test7 (hardlink count not immediately refreshed in case in which
519 inode metadata can be incorrectly kept cached when time near zero)
523 Allow file_mode and dir_mode (specified at mount time) to be enforced
524 locally (the server already enforced its own ACLs too) for servers
525 that do not report the correct mode (do not support the
526 CIFS Unix Extensions).
530 Fix some small memory leaks in some unmount error paths. Fix major leak
531 of cache pages in readpages causing multiple read oriented stress
532 testcases (including fsx, and even large file copy) to fail over time.
536 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
537 This allows files that differ only in case and improves performance of file
538 creation and file open to such servers. Fix semaphore conflict which causes
539 slow delete of open file to Samba (which unfortunately can cause an oplock
540 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
544 fixes to cifs_readpages for fsx test case
548 Fix caching data integrity bug when extending file size especially when no
549 oplock on file. Fix spurious logging of valid already parsed mount options
550 that are parsed outside of the cifs vfs such as nosuid.
555 Connect to server when port number override not specified, and tcp port
556 unitialized. Reset search to restart at correct file when kernel routine
557 filldir returns error during large directory searches (readdir).
561 Fix caching problem when files opened by multiple clients in which
562 page cache could contain stale data, and write through did
563 not occur often enough while file was still open when read ahead
564 (read oplock) not allowed. Treat "sep=" when first mount option
565 as an override of comma as the default separator between mount
570 Allow passwords longer than 16 bytes. Allow null password string.
574 Gracefully clean up failed mounts when attempting to mount to servers such as
575 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
576 embedded commas in mount parsing of passwords.
580 Invalidate local inode cached pages on oplock break and when last file
581 instance is closed so that the client does not continue using stale local
582 copy rather than later modified server copy of file. Do not reconnect
583 when server drops the tcp session prematurely before negotiate
584 protocol response. Fix oops in reopen_file when dentry freed. Allow
585 the support for CIFS Unix Extensions to be disabled via proc interface.
589 Fix hang in commit_write during reconnection of open files under heavy load.
590 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
591 which also fixes any possible races when cifs signatures are enabled in SMBs
592 being sent out of signature sequence number order.
596 Fix byte range locking bug (endian problem) causing bad offset and
601 Fix oops (in send_sig) caused by CIFS unmount code trying to
602 wake up the demultiplex thread after it had exited. Do not log
603 error on harmless oplock release of closed handle.
607 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
608 Fix problem reconnecting secondary mounts to same server after session
609 failure. Fix invalid dentry - race in mkdir when directory gets created
610 by another client between the lookup and mkdir.
614 Fix to list processing in reopen_files. Fix reconnection when server hung
615 but tcpip session still alive. Set proper timeout on socket read.
619 Add missing mount options including iocharset. SMP fixes in write and open.
620 Fix errors in reconnecting after TCP session failure. Fix module unloading
621 of default nls codepage
625 Active smb transactions should never go negative (fix double FreeXid). Fix
626 list processing in file routines. Check return code on kmalloc in open.
627 Fix spinlock usage for SMP.
631 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
632 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
633 on create hard link when server does not support them.
637 Fix scheduling while atomic error in getting inode info on newly created file.
638 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
642 Fix oops on write to dead tcp session. Remove error log write for case when file open
643 O_CREAT but not O_EXCL
647 Fix non-POSIX behavior on rename of open file and delete of open file by taking
648 advantage of trans2 SetFileInfo rename facility if available on target server.
649 Retry on ENOSPC and EAGAIN socket errors.
653 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
654 allocation size miscalculation. After oplock token lost do not read through
659 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
663 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
664 during auto reconnection to server after server recovered from failure.
668 Finish support for Linux 2.5 open/create changes, which removes the
669 redundant NTCreate/QPathInfo/close that was sent during file create.
670 Enable oplock by default. Enable packet signing by default (needed to
671 access many recent Windows servers)
675 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
676 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
677 we will choose a cifs user session (smb uid) that better matches the local
678 uid if a) the mount uid does not match the current uid and b) we have another
679 session to the same server (ip address) for a different mount which
680 matches the current local uid.
684 Add support for mknod of block or character devices. Fix oplock
685 code (distributed caching) to properly send response to oplock
690 Finish up CIFS packet digital signing for the default
691 NTLM security case. This should help Windows 2003
692 network interoperability since it is common for
693 packet signing to be required now. Fix statfs (stat -f)
694 which recently started returning errors due to
695 invalid value (-1 instead of 0) being set in the
696 struct kstatfs f_ffiles field.
700 Fix oops on stopping oplock thread when removing cifs when
705 Fix mount options for ro (readonly), uid, gid and file and directory mode.
709 Fix errors displayed on failed mounts to be more understandable.
710 Fixed various incorrect or misleading smb to posix error code mappings.
714 Fix display of NTFS DFS junctions to display as symlinks.
715 They are the network equivalent. Fix oops in
716 cifs_partialpagewrite caused by missing spinlock protection
717 of openfile linked list. Allow writebehind caching errors to
718 be returned to the application at file close.
722 Clean up options displayed in /proc/mounts by show_options to
723 be more consistent with other filesystems.
727 Fix delete of readonly file to Windows servers. Reflect
728 presence or absence of read only dos attribute in mode
729 bits for servers that do not support CIFS Unix extensions.
730 Fix shortened results on readdir of large directories to
731 servers supporting CIFS Unix extensions (caused by
732 incorrect resume key).
736 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
740 unload nls if mount fails.
744 Add resume key support to search (readdir) code to workaround
745 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
746 allows disabling caching of attribute information for
751 Add more oplock handling (distributed caching code). Remove
752 dead code. Remove excessive stack space utilization from
757 Fix oops in get dfs referral (triggered when null path sent in to
758 mount). Add support for overriding rsize at mount time.
762 Fix buffer overrun in readdir which caused intermittent kernel oopses.
763 Fix writepage code to release kmap on write data. Allow "-ip=" new
764 mount option to be passed in on parameter distinct from the first part
765 (server name portion of) the UNC name. Allow override of the
766 tcp port of the target server via new mount option "-port="
770 Fix search handle leak on rewind. Fix setuid and gid so that they are
771 reflected in the local inode immediately. Cleanup of whitespace
772 to make 2.4 and 2.5 versions more consistent.
777 Fix signal sending so that captive thread (cifsd) exits on umount
778 (which was causing the warning in kmem_cache_free of the request buffers
779 at rmmod time). This had broken as a sideeffect of the recent global
780 kernel change to daemonize. Fix memory leak in readdir code which
781 showed up in "ls -R" (and applications that did search rewinding).
785 Reconnect tids and fids after session reconnection (still do not
786 reconnect byte range locks though). Fix problem caching
787 lookup information for directory inodes, improving performance,
788 especially in deep directory trees. Fix various build warnings.
792 Finish fixes to commit write for caching/readahead consistency. fsx
793 now works to Samba servers. Fix oops caused when readahead
794 was interrupted by a signal.
798 Fix data corruption (in partial page after truncate) that caused fsx to
799 fail to Windows servers. Cleaned up some extraneous error logging in
800 common error paths. Add generic sendfile support.
804 Fix memory leak in AllocMidQEntry.
805 Finish reconnection logic, so connection with server can be dropped
806 (or server rebooted) and the cifs client will reconnect.
810 Fix temporary socket leak when bad userid or password specified
811 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
812 over 16K to allow negotiation of up to Samba and Windows server default read
813 sizes. Add support for readpages
817 Fix oops when username not passed in on mount. Extensive fixes and improvements
818 to error logging (strip redundant newlines, change debug macros to ensure newline
819 passed in and to be more consistent). Fix writepage wrong file handle problem,
820 a readonly file handle could be incorrectly used to attempt to write out
821 file updates through the page cache to multiply open files. This could cause
822 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
823 shares to the same Windows server when using different usernames
824 (doing this to Samba servers worked but Windows was rejecting it) - now it is
825 possible to use different userids when connecting to the same server from a
826 Linux client. Fix oops when treeDisconnect called during unmount on
827 previously freed socket.
831 Fix oops in readpages caused by not setting address space operations in inode in
836 Includes support for deleting of open files and renaming over existing files (per POSIX
837 requirement). Add readlink support for Windows junction points (directory symlinks).
841 Changed read and write to go through pagecache. Added additional address space operations.
842 Memory mapped operations now working.
846 Added writepage code for additional memory mapping support. Fixed leak in xids causing
847 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
848 every stat call. Additional formatting cleanup.
852 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
856 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
857 Also included a modified version of his fix to protect global list manipulation of
858 the smb session and tree connection and mid related global variables.
862 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
863 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
864 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
868 More stylistic updates to better match kernel style. Add additional statistics
869 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
870 and CIFS Packet Signing enablement.
874 Replace call to sleep_on with safer wait_on_event.
875 Make stylistic changes to better match kernel style recommendations.
876 Remove most typedef usage (except for the PDUs themselves).
880 Update mount so the -unc mount option is no longer required (the ip address can be specified
881 in a UNC style device name. Implementation of readpage/writepage started.
885 Fix intermittent problem with incorrect smb header checking on badly
886 fragmented tcp responses
890 Fixes to setting of allocation size and file size.
894 Various 2.5.38 fixes. Now works on 2.5.38
898 Prepare for 2.5 kernel merge. Remove ifdefs.
902 Socket buffer management fixes. Fix dual free.
906 Various big endian fixes for hardlinks and symlinks and also for dfs.
910 Various big endian fixes for servers with Unix extensions such as Samba
914 Various FindNext fixes for incorrect filenames on large directory searches on big endian
915 clients. basic posix file i/o tests now work on big endian machines, not just le
919 SessionSetup and NegotiateProtocol now work from Big Endian machines.
920 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
921 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
925 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
926 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
930 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
931 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
932 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
933 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
937 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
938 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
942 Rewrote much of connection and mount/unmount logic to handle bugs with
943 multiple uses to same share, multiple users to same server etc.
947 Fixed major problem with dentry corruption (missing call to dput)
951 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
952 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
953 although corresponding function not fully implemented in the vfs yet
957 Fixed dentry caching bug, misc. cleanup
961 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
962 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
963 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
967 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
968 and tested against Samba 2.2.5
973 1) Fixed lockrange to be correct (it was one byte too short)
975 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
976 show range as locked when there is a conflict with an existing lock.
978 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
979 in most cases. Eventually will offer optional ability to query server for the correct perms.
981 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
982 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
985 4) Fixed error logging of valid mount options
987 5) Removed logging of password field.
989 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
990 and cleaned them up and made them more consistent with other cifs functions.
992 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
993 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
994 nor is the symlink support using the Unix extensions
996 8) Started adding the readlink and follow_link code
projects / linux-2.6 / blob