3 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
4 Do not oops if user kills cifs oplock kernel thread.
8 Fix caching problem, in which readdir of directory containing a file
9 which was cached could cause the file's time stamp to be updated
10 without invalidating the readahead data (so we could get stale
11 file data on the client for that file even as the server copy changed).
12 Cleanup response processing so cifsd can not loop when abnormally
18 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
19 transact response for an SMB request and search entry split across two frames.
20 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
21 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
22 unless server explicitly claims to support them in CIFS Unix extensions
23 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
24 different users from the same client to the same server. Fix oops in
25 cifs_close. Add mount option for remapping reserved characters in
26 filenames (also allow recognizing files with created by SFU which have any
27 of these seven reserved characters, except backslash, to be recognized).
28 Fix invalid transact2 message (we were sometimes trying to interpret
29 oplock breaks as SMB responses). Add ioctl for checking that the
30 current uid matches the uid of the mounter (needed by umount.cifs).
31 Reduce the number of large buffer allocations in cifs response processing
32 (significantly reduces memory pressure under heavy stress with multiple
33 processes accessing the same server at the same time).
37 Fix updates of DOS attributes and time fields so that files on NT4 servers
38 do not get marked delete on close. Display sizes of cifs buffer pools in
39 cifs stats. Fix oops in unmount when cifsd thread being killed by
40 shutdown. Add generic readv/writev and aio support. Report inode numbers
41 consistently in readdir and lookup (when serverino mount option is
42 specified use the inode number that the server reports - for both lookup
43 and readdir, otherwise by default the locally generated inode number is used
44 for inodes created in either path since servers are not always able to
45 provide unique inode numbers when exporting multiple volumes from under one
50 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
51 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
52 (mostly affects NT4 servers) by retry with handle based network operation.
53 Add new POSIX Query FS Info for returning statfs info more accurately.
54 Handle passwords with multiple commas in them.
58 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
59 Fix capabilities flags for large readx so as to allow reads larger than 64K.
63 Add module init parm for large SMB buffer size (to allow it to be changed
64 from its default of 16K) which is especially useful for large file copy
65 when mounting with the directio mount option. Fix oops after
66 returning from mount when experimental ExtendedSecurity enabled and
67 SpnegoNegotiated returning invalid error. Fix case to retry better when
68 peek returns from 1 to 3 bytes on socket which should have more data.
69 Fixed path based calls (such as cifs lookup) to handle path names
70 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
71 from Samba server to DC (Samba required dummy LM password).
75 Turn off DNOTIFY (directory change notification support) by default
76 (unless built with the experimental flag) to fix hang with KDE
77 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
78 waiting on an SMB response) in SendReceive when session dies but
79 reconnects quickly from another task. Add module init parms for
80 minimum number of large and small network buffers in the buffer pools,
81 and for the maximum number of simultaneous requests.
85 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
86 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
87 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
88 improperly zeroed buffer in CIFS Unix extensions set times call.
92 Fix internationlization problem in cifs readdir with filenames that map to
93 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
94 for readdir to netapp servers. Fix search rewind (seek into readdir to return
95 non-consecutive entries). Do not do readdir when server negotiates
96 buffer size to small to fit filename. Add support for reading POSIX ACLs from
97 the server (add also acl and noacl mount options).
101 Optionally allow using server side inode numbers, rather than client generated
102 ones by specifying mount option "serverino" - this is required for some apps
103 to work which double check hardlinked files and have persistent inode numbers.
107 Multiple bigendian fixes. On little endian systems (for reconnect after
108 network failure) fix tcp session reconnect code so we do not try first
109 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
110 as directories rather than symlinks because we can do follow link on them.
114 Add config option to enable XATTR (extended attribute) support, mapping
115 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
116 minor fixes pointed out by the Stanford SWAT checker (mostly missing
117 or out of order NULL pointer checks in little used error paths).
121 Add new mount parm to control whether mode check (generic_permission) is done
122 on the client. If Unix extensions are enabled and the uids on the client
123 and server do not match, client permission checks are meaningless on
124 server uids that do not exist on the client (this does not affect the
125 normal ACL check which occurs on the server). Fix default uid
126 on mknod to match create and mkdir. Add optional mount parm to allow
127 override of the default uid behavior (in which the server sets the uid
128 and gid of newly created files). Normally for network filesystem mounts
129 user want the server to set the uid/gid on newly created files (rather than
130 using uid of the client processes you would in a local filesystem).
134 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
135 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
136 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
137 (block/char/fifo) properly. Remove spurious mount warning log entry when
138 credentials passed as mount argument. Set major/minor device number in
139 inode for block and char devices when unix extensions enabled.
143 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
144 amounts of return data. Properly limit requests to MAX_REQ (50
145 is the usual maximum active multiplex SMB/CIFS requests per server).
146 Do not kill cifsd (and thus hurt the other SMB session) when more than one
147 session to the same server (but with different userids) exists and one
148 of the two user's smb sessions is being removed while leaving the other.
149 Do not loop reconnecting in cifsd demultiplex thread when admin
150 kills the thread without going through unmount.
154 Do not rename hardlinked files (since that should be a noop). Flush
155 cached write behind data when reopening a file after session abend,
156 except when already in write. Grab per socket sem during reconnect
157 to avoid oops in sendmsg if overlapping with reconnect. Do not
158 reset cached inode file size on readdir for files open for write on
164 Update number of blocks in file so du command is happier (in Linux a fake
165 blocksize of 512 is required for calculating number of blocks in inode).
166 Fix prepare write of partial pages to read in data from server if possible.
167 Fix race on tcpStatus field between unmount and reconnection code, causing
168 cifsd process sometimes to hang around forever. Improve out of memory
169 checks in cifs_filldir
173 Fix incorrect file size in file handle based setattr on big endian hardware.
174 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
175 and closing file structs in writepage/partialpagewrite. Add statistics
176 for each mounted share (new menuconfig option). Fix endianness problem in
177 volume information displayed in /proc/fs/cifs/DebugData (only affects
178 affects big endian architectures). Prevent renames while constructing
179 path names for open, mkdir and rmdir.
183 Change to mempools for alloc smb request buffers and multiplex structs
184 to better handle low memory problems (and potential deadlocks).
188 Fix incomplete listings of large directories on Samba servers when Unix
189 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
190 rename deadlock when writing out dirty pages at same time.
194 Fix open of files in which O_CREATE can cause the mode to change in
195 some cases. Fix case in which retry of write overlaps file close.
196 Fix PPC64 build error. Reduce excessive stack usage in smb password
197 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
201 Fixes for large file copy, signal handling, socket retry, buffer
202 allocation and low memory situations.
206 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
207 also now allowing support for specifying client netbiosname. NT4 support added.
211 Fix reconnection (and certain failed mounts) to properly wake up the
212 blocked users thread so it does not seem hung (in some cases was blocked
213 until the cifs receive timeout expired). Fix spurious error logging
214 to kernel log when application with open network files killed.
218 Fix /proc/fs module unload warning message (that could be logged
219 to the kernel log). Fix intermittent failure in connectathon
220 test7 (hardlink count not immediately refreshed in case in which
221 inode metadata can be incorrectly kept cached when time near zero)
225 Allow file_mode and dir_mode (specified at mount time) to be enforced
226 locally (the server already enforced its own ACLs too) for servers
227 that do not report the correct mode (do not support the
228 CIFS Unix Extensions).
232 Fix some small memory leaks in some unmount error paths. Fix major leak
233 of cache pages in readpages causing multiple read oriented stress
234 testcases (including fsx, and even large file copy) to fail over time.
238 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
239 This allows files that differ only in case and improves performance of file
240 creation and file open to such servers. Fix semaphore conflict which causes
241 slow delete of open file to Samba (which unfortunately can cause an oplock
242 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
246 fixes to cifs_readpages for fsx test case
250 Fix caching data integrity bug when extending file size especially when no
251 oplock on file. Fix spurious logging of valid already parsed mount options
252 that are parsed outside of the cifs vfs such as nosuid.
257 Connect to server when port number override not specified, and tcp port
258 unitialized. Reset search to restart at correct file when kernel routine
259 filldir returns error during large directory searches (readdir).
263 Fix caching problem when files opened by multiple clients in which
264 page cache could contain stale data, and write through did
265 not occur often enough while file was still open when read ahead
266 (read oplock) not allowed. Treat "sep=" when first mount option
267 as an overrride of comma as the default separator between mount
272 Allow passwords longer than 16 bytes. Allow null password string.
276 Gracefully clean up failed mounts when attempting to mount to servers such as
277 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
278 embedded commas in mount parsing of passwords.
282 Invalidate local inode cached pages on oplock break and when last file
283 instance is closed so that the client does not continue using stale local
284 copy rather than later modified server copy of file. Do not reconnect
285 when server drops the tcp session prematurely before negotiate
286 protocol response. Fix oops in roepen_file when dentry freed. Allow
287 the support for CIFS Unix Extensions to be disabled via proc interface.
291 Fix hang in commit_write during reconnection of open files under heavy load.
292 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
293 which also fixes any possible races when cifs signatures are enabled in SMBs
294 being sent out of signature sequence number order.
298 Fix byte range locking bug (endian problem) causing bad offset and
303 Fix oops (in send_sig) caused by CIFS unmount code trying to
304 wake up the demultiplex thread after it had exited. Do not log
305 error on harmless oplock release of closed handle.
309 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
310 Fix problem reconnecting secondary mounts to same server after session
311 failure. Fix invalid dentry - race in mkdir when directory gets created
312 by another client between the lookup and mkdir.
316 Fix to list processing in reopen_files. Fix reconnection when server hung
317 but tcpip session still alive. Set proper timeout on socket read.
321 Add missing mount options including iocharset. SMP fixes in write and open.
322 Fix errors in reconnecting after TCP session failure. Fix module unloading
323 of default nls codepage
327 Active smb transactions should never go negative (fix double FreeXid). Fix
328 list processing in file routines. Check return code on kmalloc in open.
329 Fix spinlock usage for SMP.
333 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
334 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
335 on create hard link when server does not support them.
339 Fix scheduling while atomic error in getting inode info on newly created file.
340 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
344 Fix oops on write to dead tcp session. Remove error log write for case when file open
345 O_CREAT but not O_EXCL
349 Fix non-POSIX behavior on rename of open file and delete of open file by taking
350 advantage of trans2 SetFileInfo rename facility if available on target server.
351 Retry on ENOSPC and EAGAIN socket errors.
355 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
356 allocation size miscalculation. After oplock token lost do not read through
361 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
365 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
366 during auto reconnection to server after server recovered from failure.
370 Finish support for Linux 2.5 open/create changes, which removes the
371 redundant NTCreate/QPathInfo/close that was sent during file create.
372 Enable oplock by default. Enable packet signing by default (needed to
373 access many recent Windows servers)
377 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
378 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
379 we will choose a cifs user session (smb uid) that better matches the local
380 uid if a) the mount uid does not match the current uid and b) we have another
381 session to the same server (ip address) for a different mount which
382 matches the current local uid.
386 Add support for mknod of block or character devices. Fix oplock
387 code (distributed caching) to properly send response to oplock
392 Finish up CIFS packet digital signing for the default
393 NTLM security case. This should help Windows 2003
394 network interoperability since it is common for
395 packet signing to be required now. Fix statfs (stat -f)
396 which recently started returning errors due to
397 invalid value (-1 instead of 0) being set in the
398 struct kstatfs f_ffiles field.
402 Fix oops on stopping oplock thread when removing cifs when
407 Fix mount options for ro (readonly), uid, gid and file and directory mode.
411 Fix errors displayed on failed mounts to be more understandable.
412 Fixed various incorrect or misleading smb to posix error code mappings.
416 Fix display of NTFS DFS junctions to display as symlinks.
417 They are the network equivalent. Fix oops in
418 cifs_partialpagewrite caused by missing spinlock protection
419 of openfile linked list. Allow writebehind caching errors to
420 be returned to the application at file close.
424 Clean up options displayed in /proc/mounts by show_options to
425 be more consistent with other filesystems.
429 Fix delete of readonly file to Windows servers. Reflect
430 presence or absence of read only dos attribute in mode
431 bits for servers that do not support CIFS Unix extensions.
432 Fix shortened results on readdir of large directories to
433 servers supporting CIFS Unix extensions (caused by
434 incorrect resume key).
438 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
442 unload nls if mount fails.
446 Add resume key support to search (readdir) code to workaround
447 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
448 allows disabling caching of attribute information for
453 Add more oplock handling (distributed caching code). Remove
454 dead code. Remove excessive stack space utilization from
459 Fix oops in get dfs referral (triggered when null path sent in to
460 mount). Add support for overriding rsize at mount time.
464 Fix buffer overrun in readdir which caused intermittent kernel oopses.
465 Fix writepage code to release kmap on write data. Allow "-ip=" new
466 mount option to be passed in on parameter distinct from the first part
467 (server name portion of) the UNC name. Allow override of the
468 tcp port of the target server via new mount option "-port="
472 Fix search handle leak on rewind. Fix setuid and gid so that they are
473 reflected in the local inode immediately. Cleanup of whitespace
474 to make 2.4 and 2.5 versions more consistent.
479 Fix signal sending so that captive thread (cifsd) exits on umount
480 (which was causing the warning in kmem_cache_free of the request buffers
481 at rmmod time). This had broken as a sideeffect of the recent global
482 kernel change to daemonize. Fix memory leak in readdir code which
483 showed up in "ls -R" (and applications that did search rewinding).
487 Reconnect tids and fids after session reconnection (still do not
488 reconnect byte range locks though). Fix problem caching
489 lookup information for directory inodes, improving performance,
490 especially in deep directory trees. Fix various build warnings.
494 Finish fixes to commit write for caching/readahead consistency. fsx
495 now works to Samba servers. Fix oops caused when readahead
496 was interrupted by a signal.
500 Fix data corruption (in partial page after truncate) that caused fsx to
501 fail to Windows servers. Cleaned up some extraneous error logging in
502 common error paths. Add generic sendfile support.
506 Fix memory leak in AllocMidQEntry.
507 Finish reconnection logic, so connection with server can be dropped
508 (or server rebooted) and the cifs client will reconnect.
512 Fix temporary socket leak when bad userid or password specified
513 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
514 over 16K to allow negotiation of up to Samba and Windows server default read
515 sizes. Add support for readpages
519 Fix oops when username not passed in on mount. Extensive fixes and improvements
520 to error logging (strip redundant newlines, change debug macros to ensure newline
521 passed in and to be more consistent). Fix writepage wrong file handle problem,
522 a readonly file handle could be incorrectly used to attempt to write out
523 file updates through the page cache to multiply open files. This could cause
524 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
525 shares to the same Windows server when using different usernames
526 (doing this to Samba servers worked but Windows was rejecting it) - now it is
527 possible to use different userids when connecting to the same server from a
528 Linux client. Fix oops when treeDisconnect called during unmount on
529 previously freed socket.
533 Fix oops in readpages caused by not setting address space operations in inode in
538 Includes support for deleting of open files and renaming over existing files (per POSIX
539 requirement). Add readlink support for Windows junction points (directory symlinks).
543 Changed read and write to go through pagecache. Added additional address space operations.
544 Memory mapped operations now working.
548 Added writepage code for additional memory mapping support. Fixed leak in xids causing
549 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
550 every stat call. Additional formatting cleanup.
554 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
558 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
559 Also included a modified version of his fix to protect global list manipulation of
560 the smb session and tree connection and mid related global variables.
564 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
565 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
566 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
570 More stylistic updates to better match kernel style. Add additional statistics
571 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
572 and CIFS Packet Signing enablement.
576 Replace call to sleep_on with safer wait_on_event.
577 Make stylistic changes to better match kernel style recommendations.
578 Remove most typedef usage (except for the PDUs themselves).
582 Update mount so the -unc mount option is no longer required (the ip address can be specified
583 in a UNC style device name. Implementation of readpage/writepage started.
587 Fix intermittent problem with incorrect smb header checking on badly
588 fragmented tcp responses
592 Fixes to setting of allocation size and file size.
596 Various 2.5.38 fixes. Now works on 2.5.38
600 Prepare for 2.5 kernel merge. Remove ifdefs.
604 Socket buffer management fixes. Fix dual free.
608 Various big endian fixes for hardlinks and symlinks and also for dfs.
612 Various big endian fixes for servers with Unix extensions such as Samba
616 Various FindNext fixes for incorrect filenames on large directory searches on big endian
617 clients. basic posix file i/o tests now work on big endian machines, not just le
621 SessionSetup and NegotiateProtocol now work from Big Endian machines.
622 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
623 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
627 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
628 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
632 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
633 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
634 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
635 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
639 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
640 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
644 Rewrote much of connection and mount/unmount logic to handle bugs with
645 multiple uses to same share, multiple users to same server etc.
649 Fixed major problem with dentry corruption (missing call to dput)
653 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
654 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
655 although corresponding function not fully implemented in the vfs yet
659 Fixed dentry caching bug, misc. cleanup
663 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
664 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
665 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
669 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
670 and tested against Samba 2.2.5
675 1) Fixed lockrange to be correct (it was one byte too short)
677 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
678 show range as locked when there is a conflict with an existing lock.
680 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
681 in most cases. Eventually will offer optional ability to query server for the correct perms.
683 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
684 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
687 4) Fixed error logging of valid mount options
689 5) Removed logging of password field.
691 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
692 and cleaned them up and made them more consistent with other cifs functions.
694 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
695 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
696 nor is the symlink support using the Unix extensions
698 8) Started adding the readlink and follow_link code
projects / ~andy / linux / blob