3 Various fixes to make delete of open files behavior more predictable
4 (when delete of an open file fails we mark the file as "delete-on-close"
5 in a way that more servers accept, but only if we can first rename the
6 file to a temporary name). Add experimental support for more safely
7 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
8 sends, and also let tcp autotune the socket send and receive buffers.
9 This reduces the number of EAGAIN errors returned by TCP/IP in
10 high stress workloads (and the number of retries on socket writes
11 when sending large SMBWriteX requests).
15 Fix premature write failure on congested networks (we would give up
16 on EAGAIN from the socket too quickly on large writes).
17 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
18 Fix endian problems in acl (mode from/to cifs acl) on bigendian
19 architectures. Fix problems with preserving timestamps on copying open
20 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
21 on parent directory when server supports Unix Extensions but not POSIX
22 create. Update cifs.upcall version to handle new Kerberos sec flags
23 (this requires update of cifs.upcall program from Samba). Fix memory leak
24 on dns_upcall (resolving DFS referralls). Fix plain text password
25 authentication (requires setting SecurityFlags to 0x30030 to enable
26 lanman and plain text though). Fix writes to be at correct offset when
27 file is open with O_APPEND and file is on a directio (forcediretio) mount.
28 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
32 DFS support added (Microsoft Distributed File System client support needed
33 for referrals which enable a hierarchical name space among servers).
34 Disable temporary caching of mode bits to servers which do not support
35 storing of mode (e.g. Windows servers, when client mounts without cifsacl
36 mount option) and add new "dynperm" mount option to enable temporary caching
37 of mode (enable old behavior). Fix hang on mount caused when server crashes
38 tcp session during negotiate protocol.
42 Fix oops on second mount to server when null auth is used.
43 Enable experimental Kerberos support. Return writebehind errors on flush
44 and sync so that events like out of disk space get reported properly on
45 cached files. Fix setxattr failure to certain Samba versions. Fix mount
46 of second share to disconnected server session (autoreconnect on this).
47 Add ability to modify cifs acls for handling chmod (when mounted with
48 cifsacl flag). Fix prefixpath path separator so we can handle mounts
49 with prefixpaths longer than one directory (one path component) when
50 mounted to Windows servers. Fix slow file open when cifsacl
51 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
56 Fix memory leak in statfs when mounted to very old servers (e.g.
57 Windows 9x). Add new feature "POSIX open" which allows servers
58 which support the current POSIX Extensions to provide better semantics
59 (e.g. delete for open files opened with posix open). Take into
60 account umask on posix mkdir not just older style mkdir. Add
61 ability to mount to IPC$ share (which allows CIFS named pipes to be
62 opened, read and written as if they were files). When 1st tree
63 connect fails (e.g. due to signing negotiation failure) fix
64 leak that causes cifsd not to stop and rmmod to fail to cleanup
65 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
66 bigendian architectures. Fix possible memory corruption when
67 EAGAIN returned on kern_recvmsg. Return better error if server
68 requires packet signing but client has disabled it. When mounted
69 with cifsacl mount option - mode bits are approximated based
70 on the contents of the ACL of the file or directory. When cifs
71 mount helper is missing convert make sure that UNC name
72 has backslash (not forward slash) between ip address of server
77 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
78 done with "serverino" mount option). Add support for POSIX Unlink
79 (helps with certain sharing violation cases when server such as
80 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
81 mount option to allow disabling the CIFS Unix Extensions for just
82 that mount. Fix hang on spinlock in find_writable_file (race when
83 reopening file after session crash). Byte range unlock request to
84 windows server could unlock more bytes (on server copy of file)
85 than intended if start of unlock request is well before start of
86 a previous byte range lock that we issued.
90 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
91 address after the "ip=" mount option, at least until mount.cifs is fixed to
92 handle DNS host to ipv6 name translation). Accept override of uid or gid
93 on mount even when Unix Extensions are negotiated (it used to be ignored
94 when Unix Extensions were ignored). This allows users to override the
95 default uid and gid for files when they are certain that the uids or
96 gids on the server do not match those of the client. Make "sec=none"
97 mount override username (so that null user connection is attempted)
98 to match what documentation said. Support for very large reads, over 127K,
99 available to some newer servers (such as Samba 3.0.26 and later but
100 note that it also requires setting CIFSMaxBufSize at module install
101 time to a larger value which may hurt performance in some cases).
102 Make sign option force signing (or fail if server does not support it).
106 Fix mtime bouncing around from local idea of last write times to remote time.
107 Fix hang (in i_size_read) when simultaneous size update of same remote file
108 on smp system corrupts sequence number. Do not reread unnecessarily partial page
109 (which we are about to overwrite anyway) when writing out file opened rw.
110 When DOS attribute of file on non-Unix server's file changes on the server side
111 from read-only back to read-write, reflect this change in default file mode
112 (we had been leaving a file's mode read-only until the inode were reloaded).
113 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
114 when archive dos attribute not set and we are changing mode back to writeable
115 on server which does not support the Unix Extensions). Remove read only dos
116 attribute on chmod when adding any write permission (ie on any of
117 user/group/other (not all of user/group/other ie 0222) when
118 mounted to windows. Add support for POSIX MkDir (slight performance
119 enhancement and eliminates the network race between the mkdir and set
120 path info of the mode).
125 Fix oops in list_del during mount caused by unaligned string.
126 Fix file corruption which could occur on some large file
127 copies caused by writepages page i/o completion bug.
128 Seek to SEEK_END forces check for update of file size for non-cached
129 files. Allow file size to be updated on remote extend of locally open,
130 non-cached file. Fix reconnect to newer Samba servers (or other servers
131 which support the CIFS Unix/POSIX extensions) so that we again tell the
132 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
133 Add experimental support for new POSIX Open/Mkdir (which returns
134 stat information on the open, and allows setting the mode).
138 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
139 Allow null user to be specified on mount ("username="). Do not return
140 EINVAL on readdir when filldir fails due to overwritten blocksize
141 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
142 if rename by handle also fails, after rename by path fails, we were
143 not reporting whether the retry worked or not). Fix NTLMv2 to
144 work to Windows servers (mount with option "sec=ntlmv2").
148 Do not time out lockw calls when using posix extensions. Do not
149 time out requests if server still responding reasonably fast
150 on requests on other threads. Improve POSIX locking emulation,
151 (lock cancel now works, and unlock of merged range works even
152 to Windows servers now). Fix oops on mount to lanman servers
153 (win9x, os/2 etc.) when null password. Do not send listxattr
154 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
155 problem (instantiate inodes/dentries in right order for readdir).
159 Rewritten sessionsetup support, including support for legacy SMB
160 session setup needed for OS/2 and older servers such as Windows 95 and 98.
161 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
162 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
163 or recent levels of FindFirst unless server says it supports NT SMBs
164 (instead use legacy equivalents from LANMAN dialect). Fix to allow
165 NTLMv2 authentication support (now can use stronger password hashing
166 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
167 Allow override of global cifs security flags on mount via "sec=" option(s).
171 POSIX locking to servers which support CIFS POSIX Extensions
172 (disabled by default controlled by proc/fs/cifs/Experimental).
173 Handle conversion of long share names (especially Asian languages)
174 to Unicode during mount. Fix memory leak in sess struct on reconnect.
175 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
176 cifs open which helps rare case when setpathinfo fails or server does
181 Fix slow oplock break when mounted to different servers at the same time and
182 the tids match and we try to find matching fid on wrong server. Fix read
183 looping when signing required by server (2.6.16 kernel only). Fix readdir
184 vs. rename race which could cause each to hang. Return . and .. even
185 if server does not. Allow searches to skip first three entries and
186 begin at any location. Fix oops in find_writeable_file.
190 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
191 configure stronger authentication. Fix sfu symlinks so they can
192 be followed (not just recognized). Fix wraparound of bcc on
193 read responses when buffer size over 64K and also fix wrap of
194 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
195 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
196 on socket is returned over and over). Add POSIX (advisory) byte range
197 locking support (requires server with newest CIFS UNIX Extensions
198 to the protocol implemented). Slow down negprot slightly in port 139
199 RFC1001 case to give session_init time on buggy servers.
203 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
204 of readpages by eliminating one extra memcpy. Allow update of file size
205 from remote server even if file is open for write as long as mount is
206 directio. Recognize share mode security and send NTLM encrypted password
207 on tree connect if share mode negotiated.
211 Defer close of a file handle slightly if pending writes depend on that handle
212 (this reduces the EBADF bad file handle errors that can be logged under heavy
213 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
214 Fix SFU style symlinks and mknod needed for servers which do not support the
215 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
216 dentries so files that the client sees as deleted but that later get created
217 on the server will be recognized. Add client side permission check on setattr.
218 Timeout stuck requests better (where server has never responded or sent corrupt
223 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
224 to be smaller at first (but increasing) so large write performance performance
225 over GigE is better. Do not hang thread on illegal byte range lock response
226 from Windows (Windows can send an RFC1001 size which does not match smb size) by
227 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
228 wsize and rsize can now be larger than negotiated buffer size if server
229 supports large readx/writex, even when directio mount flag not specified.
230 Write size will in many cases now be 16K instead of 4K which greatly helps
231 file copy performance on lightly loaded networks. Fix oops in dnotify
232 when experimental config flag enabled. Make cifsFYI more granular.
236 Fix readdir caching when unlink removes file in current search buffer,
237 and this is followed by a rewind search to just before the deleted entry.
238 Do not attempt to set ctime unless atime and/or mtime change requested
239 (most servers throw it away anyway). Fix length check of received smbs
240 to be more accurate. Fix big endian problem with mapchars mount option,
241 and with a field returned by statfs.
245 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
246 For these older servers, add option for passing netbios name of server in
247 on mount (servernetbiosname). Add suspend support for power management, to
248 avoid cifsd thread preventing software suspend from working.
249 Add mount option for disabling the default behavior of sending byte range lock
250 requests to the server (necessary for certain applications which break with
251 mandatory lock behavior such as Evolution), and also mount option for
252 requesting case insensitive matching for path based requests (requesting
253 case sensitive is the default).
257 Add writepage performance improvements. Fix path name conversions
258 for long filenames on mounts which were done with "mapchars" mount option
259 specified. Ensure multiplex ids do not collide. Fix case in which
260 rmmod can oops if done soon after last unmount. Fix truncated
261 search (readdir) output when resume filename was a long filename.
262 Fix filename conversion when mapchars mount option was specified and
263 filename was a long filename.
267 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
268 Do not oops if root user kills cifs oplock kernel thread or
269 kills the cifsd thread (NB: killing the cifs kernel threads is not
270 recommended, unmount and rmmod cifs will kill them when they are
271 no longer needed). Fix readdir to ASCII servers (ie older servers
272 which do not support Unicode) and also require asterisk.
273 Fix out of memory case in which data could be written one page
274 off in the page cache.
278 Fix caching problem, in which readdir of directory containing a file
279 which was cached could cause the file's time stamp to be updated
280 without invalidating the readahead data (so we could get stale
281 file data on the client for that file even as the server copy changed).
282 Cleanup response processing so cifsd can not loop when abnormally
288 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
289 transact response for an SMB request and search entry split across two frames.
290 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
291 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
292 unless server explicitly claims to support them in CIFS Unix extensions
293 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
294 different users from the same client to the same server. Fix oops in
295 cifs_close. Add mount option for remapping reserved characters in
296 filenames (also allow recognizing files with created by SFU which have any
297 of these seven reserved characters, except backslash, to be recognized).
298 Fix invalid transact2 message (we were sometimes trying to interpret
299 oplock breaks as SMB responses). Add ioctl for checking that the
300 current uid matches the uid of the mounter (needed by umount.cifs).
301 Reduce the number of large buffer allocations in cifs response processing
302 (significantly reduces memory pressure under heavy stress with multiple
303 processes accessing the same server at the same time).
307 Fix updates of DOS attributes and time fields so that files on NT4 servers
308 do not get marked delete on close. Display sizes of cifs buffer pools in
309 cifs stats. Fix oops in unmount when cifsd thread being killed by
310 shutdown. Add generic readv/writev and aio support. Report inode numbers
311 consistently in readdir and lookup (when serverino mount option is
312 specified use the inode number that the server reports - for both lookup
313 and readdir, otherwise by default the locally generated inode number is used
314 for inodes created in either path since servers are not always able to
315 provide unique inode numbers when exporting multiple volumes from under one
320 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
321 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
322 (mostly affects NT4 servers) by retry with handle based network operation.
323 Add new POSIX Query FS Info for returning statfs info more accurately.
324 Handle passwords with multiple commas in them.
328 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
329 Fix capabilities flags for large readx so as to allow reads larger than 64K.
333 Add module init parm for large SMB buffer size (to allow it to be changed
334 from its default of 16K) which is especially useful for large file copy
335 when mounting with the directio mount option. Fix oops after
336 returning from mount when experimental ExtendedSecurity enabled and
337 SpnegoNegotiated returning invalid error. Fix case to retry better when
338 peek returns from 1 to 3 bytes on socket which should have more data.
339 Fixed path based calls (such as cifs lookup) to handle path names
340 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
341 from Samba server to DC (Samba required dummy LM password).
345 Turn off DNOTIFY (directory change notification support) by default
346 (unless built with the experimental flag) to fix hang with KDE
347 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
348 waiting on an SMB response) in SendReceive when session dies but
349 reconnects quickly from another task. Add module init parms for
350 minimum number of large and small network buffers in the buffer pools,
351 and for the maximum number of simultaneous requests.
355 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
356 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
357 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
358 improperly zeroed buffer in CIFS Unix extensions set times call.
362 Fix internationalization problem in cifs readdir with filenames that map to
363 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
364 for readdir to netapp servers. Fix search rewind (seek into readdir to return
365 non-consecutive entries). Do not do readdir when server negotiates
366 buffer size to small to fit filename. Add support for reading POSIX ACLs from
367 the server (add also acl and noacl mount options).
371 Optionally allow using server side inode numbers, rather than client generated
372 ones by specifying mount option "serverino" - this is required for some apps
373 to work which double check hardlinked files and have persistent inode numbers.
377 Multiple bigendian fixes. On little endian systems (for reconnect after
378 network failure) fix tcp session reconnect code so we do not try first
379 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
380 as directories rather than symlinks because we can do follow link on them.
384 Add config option to enable XATTR (extended attribute) support, mapping
385 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
386 minor fixes pointed out by the Stanford SWAT checker (mostly missing
387 or out of order NULL pointer checks in little used error paths).
391 Add new mount parm to control whether mode check (generic_permission) is done
392 on the client. If Unix extensions are enabled and the uids on the client
393 and server do not match, client permission checks are meaningless on
394 server uids that do not exist on the client (this does not affect the
395 normal ACL check which occurs on the server). Fix default uid
396 on mknod to match create and mkdir. Add optional mount parm to allow
397 override of the default uid behavior (in which the server sets the uid
398 and gid of newly created files). Normally for network filesystem mounts
399 user want the server to set the uid/gid on newly created files (rather than
400 using uid of the client processes you would in a local filesystem).
404 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
405 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
406 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
407 (block/char/fifo) properly. Remove spurious mount warning log entry when
408 credentials passed as mount argument. Set major/minor device number in
409 inode for block and char devices when unix extensions enabled.
413 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
414 amounts of return data. Properly limit requests to MAX_REQ (50
415 is the usual maximum active multiplex SMB/CIFS requests per server).
416 Do not kill cifsd (and thus hurt the other SMB session) when more than one
417 session to the same server (but with different userids) exists and one
418 of the two user's smb sessions is being removed while leaving the other.
419 Do not loop reconnecting in cifsd demultiplex thread when admin
420 kills the thread without going through unmount.
424 Do not rename hardlinked files (since that should be a noop). Flush
425 cached write behind data when reopening a file after session abend,
426 except when already in write. Grab per socket sem during reconnect
427 to avoid oops in sendmsg if overlapping with reconnect. Do not
428 reset cached inode file size on readdir for files open for write on
434 Update number of blocks in file so du command is happier (in Linux a fake
435 blocksize of 512 is required for calculating number of blocks in inode).
436 Fix prepare write of partial pages to read in data from server if possible.
437 Fix race on tcpStatus field between unmount and reconnection code, causing
438 cifsd process sometimes to hang around forever. Improve out of memory
439 checks in cifs_filldir
443 Fix incorrect file size in file handle based setattr on big endian hardware.
444 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
445 and closing file structs in writepage/partialpagewrite. Add statistics
446 for each mounted share (new menuconfig option). Fix endianness problem in
447 volume information displayed in /proc/fs/cifs/DebugData (only affects
448 affects big endian architectures). Prevent renames while constructing
449 path names for open, mkdir and rmdir.
453 Change to mempools for alloc smb request buffers and multiplex structs
454 to better handle low memory problems (and potential deadlocks).
458 Fix incomplete listings of large directories on Samba servers when Unix
459 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
460 rename deadlock when writing out dirty pages at same time.
464 Fix open of files in which O_CREATE can cause the mode to change in
465 some cases. Fix case in which retry of write overlaps file close.
466 Fix PPC64 build error. Reduce excessive stack usage in smb password
467 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
471 Fixes for large file copy, signal handling, socket retry, buffer
472 allocation and low memory situations.
476 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
477 also now allowing support for specifying client netbiosname. NT4 support added.
481 Fix reconnection (and certain failed mounts) to properly wake up the
482 blocked users thread so it does not seem hung (in some cases was blocked
483 until the cifs receive timeout expired). Fix spurious error logging
484 to kernel log when application with open network files killed.
488 Fix /proc/fs module unload warning message (that could be logged
489 to the kernel log). Fix intermittent failure in connectathon
490 test7 (hardlink count not immediately refreshed in case in which
491 inode metadata can be incorrectly kept cached when time near zero)
495 Allow file_mode and dir_mode (specified at mount time) to be enforced
496 locally (the server already enforced its own ACLs too) for servers
497 that do not report the correct mode (do not support the
498 CIFS Unix Extensions).
502 Fix some small memory leaks in some unmount error paths. Fix major leak
503 of cache pages in readpages causing multiple read oriented stress
504 testcases (including fsx, and even large file copy) to fail over time.
508 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
509 This allows files that differ only in case and improves performance of file
510 creation and file open to such servers. Fix semaphore conflict which causes
511 slow delete of open file to Samba (which unfortunately can cause an oplock
512 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
516 fixes to cifs_readpages for fsx test case
520 Fix caching data integrity bug when extending file size especially when no
521 oplock on file. Fix spurious logging of valid already parsed mount options
522 that are parsed outside of the cifs vfs such as nosuid.
527 Connect to server when port number override not specified, and tcp port
528 unitialized. Reset search to restart at correct file when kernel routine
529 filldir returns error during large directory searches (readdir).
533 Fix caching problem when files opened by multiple clients in which
534 page cache could contain stale data, and write through did
535 not occur often enough while file was still open when read ahead
536 (read oplock) not allowed. Treat "sep=" when first mount option
537 as an override of comma as the default separator between mount
542 Allow passwords longer than 16 bytes. Allow null password string.
546 Gracefully clean up failed mounts when attempting to mount to servers such as
547 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
548 embedded commas in mount parsing of passwords.
552 Invalidate local inode cached pages on oplock break and when last file
553 instance is closed so that the client does not continue using stale local
554 copy rather than later modified server copy of file. Do not reconnect
555 when server drops the tcp session prematurely before negotiate
556 protocol response. Fix oops in reopen_file when dentry freed. Allow
557 the support for CIFS Unix Extensions to be disabled via proc interface.
561 Fix hang in commit_write during reconnection of open files under heavy load.
562 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
563 which also fixes any possible races when cifs signatures are enabled in SMBs
564 being sent out of signature sequence number order.
568 Fix byte range locking bug (endian problem) causing bad offset and
573 Fix oops (in send_sig) caused by CIFS unmount code trying to
574 wake up the demultiplex thread after it had exited. Do not log
575 error on harmless oplock release of closed handle.
579 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
580 Fix problem reconnecting secondary mounts to same server after session
581 failure. Fix invalid dentry - race in mkdir when directory gets created
582 by another client between the lookup and mkdir.
586 Fix to list processing in reopen_files. Fix reconnection when server hung
587 but tcpip session still alive. Set proper timeout on socket read.
591 Add missing mount options including iocharset. SMP fixes in write and open.
592 Fix errors in reconnecting after TCP session failure. Fix module unloading
593 of default nls codepage
597 Active smb transactions should never go negative (fix double FreeXid). Fix
598 list processing in file routines. Check return code on kmalloc in open.
599 Fix spinlock usage for SMP.
603 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
604 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
605 on create hard link when server does not support them.
609 Fix scheduling while atomic error in getting inode info on newly created file.
610 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
614 Fix oops on write to dead tcp session. Remove error log write for case when file open
615 O_CREAT but not O_EXCL
619 Fix non-POSIX behavior on rename of open file and delete of open file by taking
620 advantage of trans2 SetFileInfo rename facility if available on target server.
621 Retry on ENOSPC and EAGAIN socket errors.
625 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
626 allocation size miscalculation. After oplock token lost do not read through
631 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
635 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
636 during auto reconnection to server after server recovered from failure.
640 Finish support for Linux 2.5 open/create changes, which removes the
641 redundant NTCreate/QPathInfo/close that was sent during file create.
642 Enable oplock by default. Enable packet signing by default (needed to
643 access many recent Windows servers)
647 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
648 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
649 we will choose a cifs user session (smb uid) that better matches the local
650 uid if a) the mount uid does not match the current uid and b) we have another
651 session to the same server (ip address) for a different mount which
652 matches the current local uid.
656 Add support for mknod of block or character devices. Fix oplock
657 code (distributed caching) to properly send response to oplock
662 Finish up CIFS packet digital signing for the default
663 NTLM security case. This should help Windows 2003
664 network interoperability since it is common for
665 packet signing to be required now. Fix statfs (stat -f)
666 which recently started returning errors due to
667 invalid value (-1 instead of 0) being set in the
668 struct kstatfs f_ffiles field.
672 Fix oops on stopping oplock thread when removing cifs when
677 Fix mount options for ro (readonly), uid, gid and file and directory mode.
681 Fix errors displayed on failed mounts to be more understandable.
682 Fixed various incorrect or misleading smb to posix error code mappings.
686 Fix display of NTFS DFS junctions to display as symlinks.
687 They are the network equivalent. Fix oops in
688 cifs_partialpagewrite caused by missing spinlock protection
689 of openfile linked list. Allow writebehind caching errors to
690 be returned to the application at file close.
694 Clean up options displayed in /proc/mounts by show_options to
695 be more consistent with other filesystems.
699 Fix delete of readonly file to Windows servers. Reflect
700 presence or absence of read only dos attribute in mode
701 bits for servers that do not support CIFS Unix extensions.
702 Fix shortened results on readdir of large directories to
703 servers supporting CIFS Unix extensions (caused by
704 incorrect resume key).
708 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
712 unload nls if mount fails.
716 Add resume key support to search (readdir) code to workaround
717 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
718 allows disabling caching of attribute information for
723 Add more oplock handling (distributed caching code). Remove
724 dead code. Remove excessive stack space utilization from
729 Fix oops in get dfs referral (triggered when null path sent in to
730 mount). Add support for overriding rsize at mount time.
734 Fix buffer overrun in readdir which caused intermittent kernel oopses.
735 Fix writepage code to release kmap on write data. Allow "-ip=" new
736 mount option to be passed in on parameter distinct from the first part
737 (server name portion of) the UNC name. Allow override of the
738 tcp port of the target server via new mount option "-port="
742 Fix search handle leak on rewind. Fix setuid and gid so that they are
743 reflected in the local inode immediately. Cleanup of whitespace
744 to make 2.4 and 2.5 versions more consistent.
749 Fix signal sending so that captive thread (cifsd) exits on umount
750 (which was causing the warning in kmem_cache_free of the request buffers
751 at rmmod time). This had broken as a sideeffect of the recent global
752 kernel change to daemonize. Fix memory leak in readdir code which
753 showed up in "ls -R" (and applications that did search rewinding).
757 Reconnect tids and fids after session reconnection (still do not
758 reconnect byte range locks though). Fix problem caching
759 lookup information for directory inodes, improving performance,
760 especially in deep directory trees. Fix various build warnings.
764 Finish fixes to commit write for caching/readahead consistency. fsx
765 now works to Samba servers. Fix oops caused when readahead
766 was interrupted by a signal.
770 Fix data corruption (in partial page after truncate) that caused fsx to
771 fail to Windows servers. Cleaned up some extraneous error logging in
772 common error paths. Add generic sendfile support.
776 Fix memory leak in AllocMidQEntry.
777 Finish reconnection logic, so connection with server can be dropped
778 (or server rebooted) and the cifs client will reconnect.
782 Fix temporary socket leak when bad userid or password specified
783 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
784 over 16K to allow negotiation of up to Samba and Windows server default read
785 sizes. Add support for readpages
789 Fix oops when username not passed in on mount. Extensive fixes and improvements
790 to error logging (strip redundant newlines, change debug macros to ensure newline
791 passed in and to be more consistent). Fix writepage wrong file handle problem,
792 a readonly file handle could be incorrectly used to attempt to write out
793 file updates through the page cache to multiply open files. This could cause
794 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
795 shares to the same Windows server when using different usernames
796 (doing this to Samba servers worked but Windows was rejecting it) - now it is
797 possible to use different userids when connecting to the same server from a
798 Linux client. Fix oops when treeDisconnect called during unmount on
799 previously freed socket.
803 Fix oops in readpages caused by not setting address space operations in inode in
808 Includes support for deleting of open files and renaming over existing files (per POSIX
809 requirement). Add readlink support for Windows junction points (directory symlinks).
813 Changed read and write to go through pagecache. Added additional address space operations.
814 Memory mapped operations now working.
818 Added writepage code for additional memory mapping support. Fixed leak in xids causing
819 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
820 every stat call. Additional formatting cleanup.
824 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
828 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
829 Also included a modified version of his fix to protect global list manipulation of
830 the smb session and tree connection and mid related global variables.
834 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
835 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
836 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
840 More stylistic updates to better match kernel style. Add additional statistics
841 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
842 and CIFS Packet Signing enablement.
846 Replace call to sleep_on with safer wait_on_event.
847 Make stylistic changes to better match kernel style recommendations.
848 Remove most typedef usage (except for the PDUs themselves).
852 Update mount so the -unc mount option is no longer required (the ip address can be specified
853 in a UNC style device name. Implementation of readpage/writepage started.
857 Fix intermittent problem with incorrect smb header checking on badly
858 fragmented tcp responses
862 Fixes to setting of allocation size and file size.
866 Various 2.5.38 fixes. Now works on 2.5.38
870 Prepare for 2.5 kernel merge. Remove ifdefs.
874 Socket buffer management fixes. Fix dual free.
878 Various big endian fixes for hardlinks and symlinks and also for dfs.
882 Various big endian fixes for servers with Unix extensions such as Samba
886 Various FindNext fixes for incorrect filenames on large directory searches on big endian
887 clients. basic posix file i/o tests now work on big endian machines, not just le
891 SessionSetup and NegotiateProtocol now work from Big Endian machines.
892 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
893 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
897 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
898 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
902 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
903 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
904 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
905 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
909 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
910 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
914 Rewrote much of connection and mount/unmount logic to handle bugs with
915 multiple uses to same share, multiple users to same server etc.
919 Fixed major problem with dentry corruption (missing call to dput)
923 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
924 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
925 although corresponding function not fully implemented in the vfs yet
929 Fixed dentry caching bug, misc. cleanup
933 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
934 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
935 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
939 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
940 and tested against Samba 2.2.5
945 1) Fixed lockrange to be correct (it was one byte too short)
947 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
948 show range as locked when there is a conflict with an existing lock.
950 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
951 in most cases. Eventually will offer optional ability to query server for the correct perms.
953 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
954 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
957 4) Fixed error logging of valid mount options
959 5) Removed logging of password field.
961 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
962 and cleaned them up and made them more consistent with other cifs functions.
964 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
965 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
966 nor is the symlink support using the Unix extensions
968 8) Started adding the readlink and follow_link code
projects / linux-2.6 / blob