3 Add config option to enable XATTR (extended attribute) support, mapping
4 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
5 minor fixes pointed out by the Stanford SWAT checker (mostly missing
6 or out of order NULL pointer checks in little used error paths).
10 Add new mount parm to control whether mode check (vfs_permission) is done on
11 the client. If Unix extensions are enabled and the uids on the client
12 and server do not match, client permission checks are meaningless on
13 server uids that do not exist on the client (this does not affect the
14 normal ACL check which occurs on the server). Fix default uid
15 on mknod to match create and mkdir. Add optional mount parm to allow
16 override of the default uid behavior (in which the server sets the uid
17 and gid of newly created files). Normally for network filesystem mounts
18 user want the server to set the uid/gid on newly created files (rather than
19 using uid of the client processes you would in a local filesystem).
23 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
24 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
25 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
26 (block/char/fifo) properly. Remove spurious mount warning log entry when
27 credentials passed as mount argument. Set major/minor device number in
28 inode for block and char devices when unix extensions enabled.
32 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
33 amounts of return data. Properly limit requests to MAX_REQ (50
34 is the usual maximum active multiplex SMB/CIFS requests per server).
35 Do not kill cifsd (and thus hurt the other SMB session) when more than one
36 session to the same server (but with different userids) exists and one
37 of the two user's smb sessions is being removed while leaving the other.
38 Do not loop reconnecting in cifsd demultiplex thread when admin
39 kills the thread without going through unmount.
43 Do not rename hardlinked files (since that should be a noop). Flush
44 cached write behind data when reopening a file after session abend,
45 except when already in write. Grab per socket sem during reconnect
46 to avoid oops in sendmsg if overlapping with reconnect. Do not
47 reset cached inode file size on readdir for files open for write on
53 Update number of blocks in file so du command is happier (in Linux a fake
54 blocksize of 512 is required for calculating number of blocks in inode).
55 Fix prepare write of partial pages to read in data from server if possible.
56 Fix race on tcpStatus field between unmount and reconnection code, causing
57 cifsd process sometimes to hang around forever. Improve out of memory
58 checks in cifs_filldir
62 Fix incorrect file size in file handle based setattr on big endian hardware.
63 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
64 and closing file structs in writepage/partialpagewrite. Add statistics
65 for each mounted share (new menuconfig option). Fix endianness problem in
66 volume information displayed in /proc/fs/cifs/DebugData (only affects
67 affects big endian architectures). Prevent renames while constructing
68 path names for open, mkdir and rmdir.
72 Change to mempools for alloc smb request buffers and multiplex structs
73 to better handle low memory problems (and potential deadlocks).
77 Fix incomplete listings of large directories on Samba servers when Unix
78 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
79 rename deadlock when writing out dirty pages at same time.
83 Fix open of files in which O_CREATE can cause the mode to change in
84 some cases. Fix case in which retry of write overlaps file close.
85 Fix PPC64 build error. Reduce excessive stack usage in smb password
86 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
90 Fixes for large file copy, signal handling, socket retry, buffer
91 allocation and low memory situations.
95 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
96 also now allowing support for specifying client netbiosname. NT4 support added.
100 Fix reconnection (and certain failed mounts) to properly wake up the
101 blocked users thread so it does not seem hung (in some cases was blocked
102 until the cifs receive timeout expired). Fix spurious error logging
103 to kernel log when application with open network files killed.
107 Fix /proc/fs module unload warning message (that could be logged
108 to the kernel log). Fix intermittent failure in connectathon
109 test7 (hardlink count not immediately refreshed in case in which
110 inode metadata can be incorrectly kept cached when time near zero)
114 Allow file_mode and dir_mode (specified at mount time) to be enforced
115 locally (the server already enforced its own ACLs too) for servers
116 that do not report the correct mode (do not support the
117 CIFS Unix Extensions).
121 Fix some small memory leaks in some unmount error paths. Fix major leak
122 of cache pages in readpages causing multiple read oriented stress
123 testcases (including fsx, and even large file copy) to fail over time.
127 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
128 This allows files that differ only in case and improves performance of file
129 creation and file open to such servers. Fix semaphore conflict which causes
130 slow delete of open file to Samba (which unfortunately can cause an oplock
131 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
135 fixes to cifs_readpages for fsx test case
139 Fix caching data integrity bug when extending file size especially when no
140 oplock on file. Fix spurious logging of valid already parsed mount options
141 that are parsed outside of the cifs vfs such as nosuid.
146 Connect to server when port number override not specified, and tcp port
147 unitialized. Reset search to restart at correct file when kernel routine
148 filldir returns error during large directory searches (readdir).
152 Fix caching problem when files opened by multiple clients in which
153 page cache could contain stale data, and write through did
154 not occur often enough while file was still open when read ahead
155 (read oplock) not allowed. Treat "sep=" when first mount option
156 as an overrride of comma as the default separator between mount
161 Allow passwords longer than 16 bytes. Allow null password string.
165 Gracefully clean up failed mounts when attempting to mount to servers such as
166 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
167 embedded commas in mount parsing of passwords.
171 Invalidate local inode cached pages on oplock break and when last file
172 instance is closed so that the client does not continue using stale local
173 copy rather than later modified server copy of file. Do not reconnect
174 when server drops the tcp session prematurely before negotiate
175 protocol response. Fix oops in roepen_file when dentry freed. Allow
176 the support for CIFS Unix Extensions to be disabled via proc interface.
180 Fix hang in commit_write during reconnection of open files under heavy load.
181 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
182 which also fixes any possible races when cifs signatures are enabled in SMBs
183 being sent out of signature sequence number order.
187 Fix byte range locking bug (endian problem) causing bad offset and
192 Fix oops (in send_sig) caused by CIFS unmount code trying to
193 wake up the demultiplex thread after it had exited. Do not log
194 error on harmless oplock release of closed handle.
198 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
199 Fix problem reconnecting secondary mounts to same server after session
200 failure. Fix invalid dentry - race in mkdir when directory gets created
201 by another client between the lookup and mkdir.
205 Fix to list processing in reopen_files. Fix reconnection when server hung
206 but tcpip session still alive. Set proper timeout on socket read.
210 Add missing mount options including iocharset. SMP fixes in write and open.
211 Fix errors in reconnecting after TCP session failure. Fix module unloading
212 of default nls codepage
216 Active smb transactions should never go negative (fix double FreeXid). Fix
217 list processing in file routines. Check return code on kmalloc in open.
218 Fix spinlock usage for SMP.
222 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
223 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
224 on create hard link when server does not support them.
228 Fix scheduling while atomic error in getting inode info on newly created file.
229 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
233 Fix oops on write to dead tcp session. Remove error log write for case when file open
234 O_CREAT but not O_EXCL
238 Fix non-POSIX behavior on rename of open file and delete of open file by taking
239 advantage of trans2 SetFileInfo rename facility if available on target server.
240 Retry on ENOSPC and EAGAIN socket errors.
244 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
245 allocation size miscalculation. After oplock token lost do not read through
250 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
254 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
255 during auto reconnection to server after server recovered from failure.
259 Finish support for Linux 2.5 open/create changes, which removes the
260 redundant NTCreate/QPathInfo/close that was sent during file create.
261 Enable oplock by default. Enable packet signing by default (needed to
262 access many recent Windows servers)
266 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
267 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
268 we will choose a cifs user session (smb uid) that better matches the local
269 uid if a) the mount uid does not match the current uid and b) we have another
270 session to the same server (ip address) for a different mount which
271 matches the current local uid.
275 Add support for mknod of block or character devices. Fix oplock
276 code (distributed caching) to properly send response to oplock
281 Finish up CIFS packet digital signing for the default
282 NTLM security case. This should help Windows 2003
283 network interoperability since it is common for
284 packet signing to be required now. Fix statfs (stat -f)
285 which recently started returning errors due to
286 invalid value (-1 instead of 0) being set in the
287 struct kstatfs f_ffiles field.
291 Fix oops on stopping oplock thread when removing cifs when
296 Fix mount options for ro (readonly), uid, gid and file and directory mode.
300 Fix errors displayed on failed mounts to be more understandable.
301 Fixed various incorrect or misleading smb to posix error code mappings.
305 Fix display of NTFS DFS junctions to display as symlinks.
306 They are the network equivalent. Fix oops in
307 cifs_partialpagewrite caused by missing spinlock protection
308 of openfile linked list. Allow writebehind caching errors to
309 be returned to the application at file close.
313 Clean up options displayed in /proc/mounts by show_options to
314 be more consistent with other filesystems.
318 Fix delete of readonly file to Windows servers. Reflect
319 presence or absence of read only dos attribute in mode
320 bits for servers that do not support CIFS Unix extensions.
321 Fix shortened results on readdir of large directories to
322 servers supporting CIFS Unix extensions (caused by
323 incorrect resume key).
327 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
331 unload nls if mount fails.
335 Add resume key support to search (readdir) code to workaround
336 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
337 allows disabling caching of attribute information for
342 Add more oplock handling (distributed caching code). Remove
343 dead code. Remove excessive stack space utilization from
348 Fix oops in get dfs referral (triggered when null path sent in to
349 mount). Add support for overriding rsize at mount time.
353 Fix buffer overrun in readdir which caused intermittent kernel oopses.
354 Fix writepage code to release kmap on write data. Allow "-ip=" new
355 mount option to be passed in on parameter distinct from the first part
356 (server name portion of) the UNC name. Allow override of the
357 tcp port of the target server via new mount option "-port="
361 Fix search handle leak on rewind. Fix setuid and gid so that they are
362 reflected in the local inode immediately. Cleanup of whitespace
363 to make 2.4 and 2.5 versions more consistent.
368 Fix signal sending so that captive thread (cifsd) exits on umount
369 (which was causing the warning in kmem_cache_free of the request buffers
370 at rmmod time). This had broken as a sideeffect of the recent global
371 kernel change to daemonize. Fix memory leak in readdir code which
372 showed up in "ls -R" (and applications that did search rewinding).
376 Reconnect tids and fids after session reconnection (still do not
377 reconnect byte range locks though). Fix problem caching
378 lookup information for directory inodes, improving performance,
379 especially in deep directory trees. Fix various build warnings.
383 Finish fixes to commit write for caching/readahead consistency. fsx
384 now works to Samba servers. Fix oops caused when readahead
385 was interrupted by a signal.
389 Fix data corruption (in partial page after truncate) that caused fsx to
390 fail to Windows servers. Cleaned up some extraneous error logging in
391 common error paths. Add generic sendfile support.
395 Fix memory leak in AllocMidQEntry.
396 Finish reconnection logic, so connection with server can be dropped
397 (or server rebooted) and the cifs client will reconnect.
401 Fix temporary socket leak when bad userid or password specified
402 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
403 over 16K to allow negotiation of up to Samba and Windows server default read
404 sizes. Add support for readpages
408 Fix oops when username not passed in on mount. Extensive fixes and improvements
409 to error logging (strip redundant newlines, change debug macros to ensure newline
410 passed in and to be more consistent). Fix writepage wrong file handle problem,
411 a readonly file handle could be incorrectly used to attempt to write out
412 file updates through the page cache to multiply open files. This could cause
413 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
414 shares to the same Windows server when using different usernames
415 (doing this to Samba servers worked but Windows was rejecting it) - now it is
416 possible to use different userids when connecting to the same server from a
417 Linux client. Fix oops when treeDisconnect called during unmount on
418 previously freed socket.
422 Fix oops in readpages caused by not setting address space operations in inode in
427 Includes support for deleting of open files and renaming over existing files (per POSIX
428 requirement). Add readlink support for Windows junction points (directory symlinks).
432 Changed read and write to go through pagecache. Added additional address space operations.
433 Memory mapped operations now working.
437 Added writepage code for additional memory mapping support. Fixed leak in xids causing
438 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
439 every stat call. Additional formatting cleanup.
443 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
447 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
448 Also included a modified version of his fix to protect global list manipulation of
449 the smb session and tree connection and mid related global variables.
453 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
454 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
455 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
459 More stylistic updates to better match kernel style. Add additional statistics
460 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
461 and CIFS Packet Signing enablement.
465 Replace call to sleep_on with safer wait_on_event.
466 Make stylistic changes to better match kernel style recommendations.
467 Remove most typedef usage (except for the PDUs themselves).
471 Update mount so the -unc mount option is no longer required (the ip address can be specified
472 in a UNC style device name. Implementation of readpage/writepage started.
476 Fix intermittent problem with incorrect smb header checking on badly
477 fragmented tcp responses
481 Fixes to setting of allocation size and file size.
485 Various 2.5.38 fixes. Now works on 2.5.38
489 Prepare for 2.5 kernel merge. Remove ifdefs.
493 Socket buffer management fixes. Fix dual free.
497 Various big endian fixes for hardlinks and symlinks and also for dfs.
501 Various big endian fixes for servers with Unix extensions such as Samba
505 Various FindNext fixes for incorrect filenames on large directory searches on big endian
506 clients. basic posix file i/o tests now work on big endian machines, not just le
510 SessionSetup and NegotiateProtocol now work from Big Endian machines.
511 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
512 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
516 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
517 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
521 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
522 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
523 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
524 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
528 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
529 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
533 Rewrote much of connection and mount/unmount logic to handle bugs with
534 multiple uses to same share, multiple users to same server etc.
538 Fixed major problem with dentry corruption (missing call to dput)
542 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
543 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
544 although corresponding function not fully implemented in the vfs yet
548 Fixed dentry caching bug, misc. cleanup
552 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
553 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
554 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
558 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
559 and tested against Samba 2.2.5
564 1) Fixed lockrange to be correct (it was one byte too short)
566 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
567 show range as locked when there is a conflict with an existing lock.
569 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
570 in most cases. Eventually will offer optional ability to query server for the correct perms.
572 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
573 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
576 4) Fixed error logging of valid mount options
578 5) Removed logging of password field.
580 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
581 and cleaned them up and made them more consistent with other cifs functions.
583 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
584 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
585 nor is the symlink support using the Unix extensions
587 8) Started adding the readlink and follow_link code
git://git.onelab.eu / linux-2.6.git / blob