3 Add config option to enable XATTR (extended attribute) support, mapping
4 xattr names in the "user." namespace space to SMB/CIFS EAs.
8 Add new mount parm to control whether mode check (vfs_permission) is done on
9 the client. If Unix extensions are enabled and the uids on the client
10 and server do not match, client permission checks are meaningless on
11 server uids that do not exist on the client (this does not affect the
12 normal ACL check which occurs on the server). Fix default uid
13 on mknod to match create and mkdir. Add optional mount parm to allow
14 override of the default uid behavior (in which the server sets the uid
15 and gid of newly created files). Normally for network filesystem mounts
16 user want the server to set the uid/gid on newly created files (rather than
17 using uid of the client processes you would in a local filesystem).
21 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
22 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
23 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
24 (block/char/fifo) properly. Remove spurious mount warning log entry when
25 credentials passed as mount argument. Set major/minor device number in
26 inode for block and char devices when unix extensions enabled.
30 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
31 amounts of return data. Properly limit requests to MAX_REQ (50
32 is the usual maximum active multiplex SMB/CIFS requests per server).
33 Do not kill cifsd (and thus hurt the other SMB session) when more than one
34 session to the same server (but with different userids) exists and one
35 of the two user's smb sessions is being removed while leaving the other.
36 Do not loop reconnecting in cifsd demultiplex thread when admin
37 kills the thread without going through unmount.
41 Do not rename hardlinked files (since that should be a noop). Flush
42 cached write behind data when reopening a file after session abend,
43 except when already in write. Grab per socket sem during reconnect
44 to avoid oops in sendmsg if overlapping with reconnect. Do not
45 reset cached inode file size on readdir for files open for write on
51 Update number of blocks in file so du command is happier (in Linux a fake
52 blocksize of 512 is required for calculating number of blocks in inode).
53 Fix prepare write of partial pages to read in data from server if possible.
54 Fix race on tcpStatus field between unmount and reconnection code, causing
55 cifsd process sometimes to hang around forever. Improve out of memory
56 checks in cifs_filldir
60 Fix incorrect file size in file handle based setattr on big endian hardware.
61 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
62 and closing file structs in writepage/partialpagewrite. Add statistics
63 for each mounted share (new menuconfig option). Fix endianness problem in
64 volume information displayed in /proc/fs/cifs/DebugData (only affects
65 affects big endian architectures). Prevent renames while constructing
66 path names for open, mkdir and rmdir.
70 Change to mempools for alloc smb request buffers and multiplex structs
71 to better handle low memory problems (and potential deadlocks).
75 Fix incomplete listings of large directories on Samba servers when Unix
76 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
77 rename deadlock when writing out dirty pages at same time.
81 Fix open of files in which O_CREATE can cause the mode to change in
82 some cases. Fix case in which retry of write overlaps file close.
83 Fix PPC64 build error. Reduce excessive stack usage in smb password
84 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
88 Fixes for large file copy, signal handling, socket retry, buffer
89 allocation and low memory situations.
93 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
94 also now allowing support for specifying client netbiosname. NT4 support added.
98 Fix reconnection (and certain failed mounts) to properly wake up the
99 blocked users thread so it does not seem hung (in some cases was blocked
100 until the cifs receive timeout expired). Fix spurious error logging
101 to kernel log when application with open network files killed.
105 Fix /proc/fs module unload warning message (that could be logged
106 to the kernel log). Fix intermittent failure in connectathon
107 test7 (hardlink count not immediately refreshed in case in which
108 inode metadata can be incorrectly kept cached when time near zero)
112 Allow file_mode and dir_mode (specified at mount time) to be enforced
113 locally (the server already enforced its own ACLs too) for servers
114 that do not report the correct mode (do not support the
115 CIFS Unix Extensions).
119 Fix some small memory leaks in some unmount error paths. Fix major leak
120 of cache pages in readpages causing multiple read oriented stress
121 testcases (including fsx, and even large file copy) to fail over time.
125 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
126 This allows files that differ only in case and improves performance of file
127 creation and file open to such servers. Fix semaphore conflict which causes
128 slow delete of open file to Samba (which unfortunately can cause an oplock
129 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
133 fixes to cifs_readpages for fsx test case
137 Fix caching data integrity bug when extending file size especially when no
138 oplock on file. Fix spurious logging of valid already parsed mount options
139 that are parsed outside of the cifs vfs such as nosuid.
144 Connect to server when port number override not specified, and tcp port
145 unitialized. Reset search to restart at correct file when kernel routine
146 filldir returns error during large directory searches (readdir).
150 Fix caching problem when files opened by multiple clients in which
151 page cache could contain stale data, and write through did
152 not occur often enough while file was still open when read ahead
153 (read oplock) not allowed. Treat "sep=" when first mount option
154 as an overrride of comma as the default separator between mount
159 Allow passwords longer than 16 bytes. Allow null password string.
163 Gracefully clean up failed mounts when attempting to mount to servers such as
164 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
165 embedded commas in mount parsing of passwords.
169 Invalidate local inode cached pages on oplock break and when last file
170 instance is closed so that the client does not continue using stale local
171 copy rather than later modified server copy of file. Do not reconnect
172 when server drops the tcp session prematurely before negotiate
173 protocol response. Fix oops in roepen_file when dentry freed. Allow
174 the support for CIFS Unix Extensions to be disabled via proc interface.
178 Fix hang in commit_write during reconnection of open files under heavy load.
179 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
180 which also fixes any possible races when cifs signatures are enabled in SMBs
181 being sent out of signature sequence number order.
185 Fix byte range locking bug (endian problem) causing bad offset and
190 Fix oops (in send_sig) caused by CIFS unmount code trying to
191 wake up the demultiplex thread after it had exited. Do not log
192 error on harmless oplock release of closed handle.
196 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
197 Fix problem reconnecting secondary mounts to same server after session
198 failure. Fix invalid dentry - race in mkdir when directory gets created
199 by another client between the lookup and mkdir.
203 Fix to list processing in reopen_files. Fix reconnection when server hung
204 but tcpip session still alive. Set proper timeout on socket read.
208 Add missing mount options including iocharset. SMP fixes in write and open.
209 Fix errors in reconnecting after TCP session failure. Fix module unloading
210 of default nls codepage
214 Active smb transactions should never go negative (fix double FreeXid). Fix
215 list processing in file routines. Check return code on kmalloc in open.
216 Fix spinlock usage for SMP.
220 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
221 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
222 on create hard link when server does not support them.
226 Fix scheduling while atomic error in getting inode info on newly created file.
227 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
231 Fix oops on write to dead tcp session. Remove error log write for case when file open
232 O_CREAT but not O_EXCL
236 Fix non-POSIX behavior on rename of open file and delete of open file by taking
237 advantage of trans2 SetFileInfo rename facility if available on target server.
238 Retry on ENOSPC and EAGAIN socket errors.
242 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
243 allocation size miscalculation. After oplock token lost do not read through
248 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
252 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
253 during auto reconnection to server after server recovered from failure.
257 Finish support for Linux 2.5 open/create changes, which removes the
258 redundant NTCreate/QPathInfo/close that was sent during file create.
259 Enable oplock by default. Enable packet signing by default (needed to
260 access many recent Windows servers)
264 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
265 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
266 we will choose a cifs user session (smb uid) that better matches the local
267 uid if a) the mount uid does not match the current uid and b) we have another
268 session to the same server (ip address) for a different mount which
269 matches the current local uid.
273 Add support for mknod of block or character devices. Fix oplock
274 code (distributed caching) to properly send response to oplock
279 Finish up CIFS packet digital signing for the default
280 NTLM security case. This should help Windows 2003
281 network interoperability since it is common for
282 packet signing to be required now. Fix statfs (stat -f)
283 which recently started returning errors due to
284 invalid value (-1 instead of 0) being set in the
285 struct kstatfs f_ffiles field.
289 Fix oops on stopping oplock thread when removing cifs when
294 Fix mount options for ro (readonly), uid, gid and file and directory mode.
298 Fix errors displayed on failed mounts to be more understandable.
299 Fixed various incorrect or misleading smb to posix error code mappings.
303 Fix display of NTFS DFS junctions to display as symlinks.
304 They are the network equivalent. Fix oops in
305 cifs_partialpagewrite caused by missing spinlock protection
306 of openfile linked list. Allow writebehind caching errors to
307 be returned to the application at file close.
311 Clean up options displayed in /proc/mounts by show_options to
312 be more consistent with other filesystems.
316 Fix delete of readonly file to Windows servers. Reflect
317 presence or absence of read only dos attribute in mode
318 bits for servers that do not support CIFS Unix extensions.
319 Fix shortened results on readdir of large directories to
320 servers supporting CIFS Unix extensions (caused by
321 incorrect resume key).
325 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
329 unload nls if mount fails.
333 Add resume key support to search (readdir) code to workaround
334 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
335 allows disabling caching of attribute information for
340 Add more oplock handling (distributed caching code). Remove
341 dead code. Remove excessive stack space utilization from
346 Fix oops in get dfs referral (triggered when null path sent in to
347 mount). Add support for overriding rsize at mount time.
351 Fix buffer overrun in readdir which caused intermittent kernel oopses.
352 Fix writepage code to release kmap on write data. Allow "-ip=" new
353 mount option to be passed in on parameter distinct from the first part
354 (server name portion of) the UNC name. Allow override of the
355 tcp port of the target server via new mount option "-port="
359 Fix search handle leak on rewind. Fix setuid and gid so that they are
360 reflected in the local inode immediately. Cleanup of whitespace
361 to make 2.4 and 2.5 versions more consistent.
366 Fix signal sending so that captive thread (cifsd) exits on umount
367 (which was causing the warning in kmem_cache_free of the request buffers
368 at rmmod time). This had broken as a sideeffect of the recent global
369 kernel change to daemonize. Fix memory leak in readdir code which
370 showed up in "ls -R" (and applications that did search rewinding).
374 Reconnect tids and fids after session reconnection (still do not
375 reconnect byte range locks though). Fix problem caching
376 lookup information for directory inodes, improving performance,
377 especially in deep directory trees. Fix various build warnings.
381 Finish fixes to commit write for caching/readahead consistency. fsx
382 now works to Samba servers. Fix oops caused when readahead
383 was interrupted by a signal.
387 Fix data corruption (in partial page after truncate) that caused fsx to
388 fail to Windows servers. Cleaned up some extraneous error logging in
389 common error paths. Add generic sendfile support.
393 Fix memory leak in AllocMidQEntry.
394 Finish reconnection logic, so connection with server can be dropped
395 (or server rebooted) and the cifs client will reconnect.
399 Fix temporary socket leak when bad userid or password specified
400 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
401 over 16K to allow negotiation of up to Samba and Windows server default read
402 sizes. Add support for readpages
406 Fix oops when username not passed in on mount. Extensive fixes and improvements
407 to error logging (strip redundant newlines, change debug macros to ensure newline
408 passed in and to be more consistent). Fix writepage wrong file handle problem,
409 a readonly file handle could be incorrectly used to attempt to write out
410 file updates through the page cache to multiply open files. This could cause
411 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
412 shares to the same Windows server when using different usernames
413 (doing this to Samba servers worked but Windows was rejecting it) - now it is
414 possible to use different userids when connecting to the same server from a
415 Linux client. Fix oops when treeDisconnect called during unmount on
416 previously freed socket.
420 Fix oops in readpages caused by not setting address space operations in inode in
425 Includes support for deleting of open files and renaming over existing files (per POSIX
426 requirement). Add readlink support for Windows junction points (directory symlinks).
430 Changed read and write to go through pagecache. Added additional address space operations.
431 Memory mapped operations now working.
435 Added writepage code for additional memory mapping support. Fixed leak in xids causing
436 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
437 every stat call. Additional formatting cleanup.
441 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
445 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
446 Also included a modified version of his fix to protect global list manipulation of
447 the smb session and tree connection and mid related global variables.
451 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
452 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
453 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
457 More stylistic updates to better match kernel style. Add additional statistics
458 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
459 and CIFS Packet Signing enablement.
463 Replace call to sleep_on with safer wait_on_event.
464 Make stylistic changes to better match kernel style recommendations.
465 Remove most typedef usage (except for the PDUs themselves).
469 Update mount so the -unc mount option is no longer required (the ip address can be specified
470 in a UNC style device name. Implementation of readpage/writepage started.
474 Fix intermittent problem with incorrect smb header checking on badly
475 fragmented tcp responses
479 Fixes to setting of allocation size and file size.
483 Various 2.5.38 fixes. Now works on 2.5.38
487 Prepare for 2.5 kernel merge. Remove ifdefs.
491 Socket buffer management fixes. Fix dual free.
495 Various big endian fixes for hardlinks and symlinks and also for dfs.
499 Various big endian fixes for servers with Unix extensions such as Samba
503 Various FindNext fixes for incorrect filenames on large directory searches on big endian
504 clients. basic posix file i/o tests now work on big endian machines, not just le
508 SessionSetup and NegotiateProtocol now work from Big Endian machines.
509 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
510 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
514 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
515 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
519 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
520 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
521 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
522 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
526 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
527 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
531 Rewrote much of connection and mount/unmount logic to handle bugs with
532 multiple uses to same share, multiple users to same server etc.
536 Fixed major problem with dentry corruption (missing call to dput)
540 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
541 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
542 although corresponding function not fully implemented in the vfs yet
546 Fixed dentry caching bug, misc. cleanup
550 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
551 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
552 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
556 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
557 and tested against Samba 2.2.5
562 1) Fixed lockrange to be correct (it was one byte too short)
564 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
565 show range as locked when there is a conflict with an existing lock.
567 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
568 in most cases. Eventually will offer optional ability to query server for the correct perms.
570 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
571 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
574 4) Fixed error logging of valid mount options
576 5) Removed logging of password field.
578 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
579 and cleaned them up and made them more consistent with other cifs functions.
581 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
582 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
583 nor is the symlink support using the Unix extensions
585 8) Started adding the readlink and follow_link code
git://git.onelab.eu / linux-2.6.git / blob