3 Fix open of files in which O_CREATE can cause the mode to change in
4 some cases. Fix case in which retry of write overlaps file close.
5 Fix PPC64 build error. Reduce excessive stack usage in smb password
10 Fixes for large file copy, signal handling, socket retry, buffer
11 allocation and low memory situations.
15 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
16 also now allowing support for specifying client netbiosname. NT4 support added.
20 Fix reconnection (and certain failed mounts) to properly wake up the
21 blocked users thread so it does not seem hung (in some cases was blocked
22 until the cifs receive timeout expired). Fix spurious error logging
23 to kernel log when application with open network files killed.
27 Fix /proc/fs module unload warning message (that could be logged
28 to the kernel log). Fix intermittent failure in connectathon
29 test7 (hardlink count not immediately refreshed in case in which
30 inode metadata can be incorrectly kept cached when time near zero)
34 Allow file_mode and dir_mode (specified at mount time) to be enforced
35 locally (the server already enforced its own ACLs too) for servers
36 that do not report the correct mode (do not support the
37 CIFS Unix Extensions).
41 Fix some small memory leaks in some unmount error paths. Fix major leak
42 of cache pages in readpages causing multiple read oriented stress
43 testcases (including fsx, and even large file copy) to fail over time.
47 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
48 This allows files that differ only in case and improves performance of file
49 creation and file open to such servers. Fix semaphore conflict which causes
50 slow delete of open file to Samba (which unfortunately can cause an oplock
51 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
55 fixes to cifs_readpages for fsx test case
59 Fix caching data integrity bug when extending file size especially when no
60 oplock on file. Fix spurious logging of valid already parsed mount options
61 that are parsed outside of the cifs vfs such as nosuid.
66 Connect to server when port number override not specified, and tcp port
67 unitialized. Reset search to restart at correct file when kernel routine
68 filldir returns error during large directory searches (readdir).
72 Fix caching problem when files opened by multiple clients in which
73 page cache could contain stale data, and write through did
74 not occur often enough while file was still open when read ahead
75 (read oplock) not allowed. Treat "sep=" when first mount option
76 as an overrride of comma as the default separator between mount
81 Allow passwords longer than 16 bytes. Allow null password string.
85 Gracefully clean up failed mounts when attempting to mount to servers such as
86 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
87 embedded commas in mount parsing of passwords.
91 Invalidate local inode cached pages on oplock break and when last file
92 instance is closed so that the client does not continue using stale local
93 copy rather than later modified server copy of file. Do not reconnect
94 when server drops the tcp session prematurely before negotiate
95 protocol response. Fix oops in roepen_file when dentry freed. Allow
96 the support for CIFS Unix Extensions to be disabled via proc interface.
100 Fix hang in commit_write during reconnection of open files under heavy load.
101 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
102 which also fixes any possible races when cifs signatures are enabled in SMBs
103 being sent out of signature sequence number order.
107 Fix byte range locking bug (endian problem) causing bad offset and
112 Fix oops (in send_sig) caused by CIFS unmount code trying to
113 wake up the demultiplex thread after it had exited. Do not log
114 error on harmless oplock release of closed handle.
118 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
119 Fix problem reconnecting secondary mounts to same server after session
120 failure. Fix invalid dentry - race in mkdir when directory gets created
121 by another client between the lookup and mkdir.
125 Fix to list processing in reopen_files. Fix reconnection when server hung
126 but tcpip session still alive. Set proper timeout on socket read.
130 Add missing mount options including iocharset. SMP fixes in write and open.
131 Fix errors in reconnecting after TCP session failure. Fix module unloading
132 of default nls codepage
136 Active smb transactions should never go negative (fix double FreeXid). Fix
137 list processing in file routines. Check return code on kmalloc in open.
138 Fix spinlock usage for SMP.
142 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
143 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
144 on create hard link when server does not support them.
148 Fix scheduling while atomic error in getting inode info on newly created file.
149 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
153 Fix oops on write to dead tcp session. Remove error log write for case when file open
154 O_CREAT but not O_EXCL
158 Fix non-POSIX behavior on rename of open file and delete of open file by taking
159 advantage of trans2 SetFileInfo rename facility if available on target server.
160 Retry on ENOSPC and EAGAIN socket errors.
164 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
165 allocation size miscalculation. After oplock token lost do not read through
170 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
174 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
175 during auto reconnection to server after server recovered from failure.
179 Finish support for Linux 2.5 open/create changes, which removes the
180 redundant NTCreate/QPathInfo/close that was sent during file create.
181 Enable oplock by default. Enable packet signing by default (needed to
182 access many recent Windows servers)
186 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
187 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
188 we will choose a cifs user session (smb uid) that better matches the local
189 uid if a) the mount uid does not match the current uid and b) we have another
190 session to the same server (ip address) for a different mount which
191 matches the current local uid.
195 Add support for mknod of block or character devices. Fix oplock
196 code (distributed caching) to properly send response to oplock
201 Finish up CIFS packet digital signing for the default
202 NTLM security case. This should help Windows 2003
203 network interoperability since it is common for
204 packet signing to be required now. Fix statfs (stat -f)
205 which recently started returning errors due to
206 invalid value (-1 instead of 0) being set in the
207 struct kstatfs f_ffiles field.
211 Fix oops on stopping oplock thread when removing cifs when
216 Fix mount options for ro (readonly), uid, gid and file and directory mode.
220 Fix errors displayed on failed mounts to be more understandable.
221 Fixed various incorrect or misleading smb to posix error code mappings.
225 Fix display of NTFS DFS junctions to display as symlinks.
226 They are the network equivalent. Fix oops in
227 cifs_partialpagewrite caused by missing spinlock protection
228 of openfile linked list. Allow writebehind caching errors to
229 be returned to the application at file close.
233 Clean up options displayed in /proc/mounts by show_options to
234 be more consistent with other filesystems.
238 Fix delete of readonly file to Windows servers. Reflect
239 presence or absence of read only dos attribute in mode
240 bits for servers that do not support CIFS Unix extensions.
241 Fix shortened results on readdir of large directories to
242 servers supporting CIFS Unix extensions (caused by
243 incorrect resume key).
247 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
251 unload nls if mount fails.
255 Add resume key support to search (readdir) code to workaround
256 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
257 allows disabling caching of attribute information for
262 Add more oplock handling (distributed caching code). Remove
263 dead code. Remove excessive stack space utilization from
268 Fix oops in get dfs referral (triggered when null path sent in to
269 mount). Add support for overriding rsize at mount time.
273 Fix buffer overrun in readdir which caused intermittent kernel oopses.
274 Fix writepage code to release kmap on write data. Allow "-ip=" new
275 mount option to be passed in on parameter distinct from the first part
276 (server name portion of) the UNC name. Allow override of the
277 tcp port of the target server via new mount option "-port="
281 Fix search handle leak on rewind. Fix setuid and gid so that they are
282 reflected in the local inode immediately. Cleanup of whitespace
283 to make 2.4 and 2.5 versions more consistent.
288 Fix signal sending so that captive thread (cifsd) exits on umount
289 (which was causing the warning in kmem_cache_free of the request buffers
290 at rmmod time). This had broken as a sideeffect of the recent global
291 kernel change to daemonize. Fix memory leak in readdir code which
292 showed up in "ls -R" (and applications that did search rewinding).
296 Reconnect tids and fids after session reconnection (still do not
297 reconnect byte range locks though). Fix problem caching
298 lookup information for directory inodes, improving performance,
299 especially in deep directory trees. Fix various build warnings.
303 Finish fixes to commit write for caching/readahead consistency. fsx
304 now works to Samba servers. Fix oops caused when readahead
305 was interrupted by a signal.
309 Fix data corruption (in partial page after truncate) that caused fsx to
310 fail to Windows servers. Cleaned up some extraneous error logging in
311 common error paths. Add generic sendfile support.
315 Fix memory leak in AllocMidQEntry.
316 Finish reconnection logic, so connection with server can be dropped
317 (or server rebooted) and the cifs client will reconnect.
321 Fix temporary socket leak when bad userid or password specified
322 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
323 over 16K to allow negotiation of up to Samba and Windows server default read
324 sizes. Add support for readpages
328 Fix oops when username not passed in on mount. Extensive fixes and improvements
329 to error logging (strip redundant newlines, change debug macros to ensure newline
330 passed in and to be more consistent). Fix writepage wrong file handle problem,
331 a readonly file handle could be incorrectly used to attempt to write out
332 file updates through the page cache to multiply open files. This could cause
333 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
334 shares to the same Windows server when using different usernames
335 (doing this to Samba servers worked but Windows was rejecting it) - now it is
336 possible to use different userids when connecting to the same server from a
337 Linux client. Fix oops when treeDisconnect called during unmount on
338 previously freed socket.
342 Fix oops in readpages caused by not setting address space operations in inode in
347 Includes support for deleting of open files and renaming over existing files (per POSIX
348 requirement). Add readlink support for Windows junction points (directory symlinks).
352 Changed read and write to go through pagecache. Added additional address space operations.
353 Memory mapped operations now working.
357 Added writepage code for additional memory mapping support. Fixed leak in xids causing
358 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
359 every stat call. Additional formatting cleanup.
363 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
367 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
368 Also included a modified version of his fix to protect global list manipulation of
369 the smb session and tree connection and mid related global variables.
373 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
374 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
375 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
379 More stylistic updates to better match kernel style. Add additional statistics
380 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
381 and CIFS Packet Signing enablement.
385 Replace call to sleep_on with safer wait_on_event.
386 Make stylistic changes to better match kernel style recommendations.
387 Remove most typedef usage (except for the PDUs themselves).
391 Update mount so the -unc mount option is no longer required (the ip address can be specified
392 in a UNC style device name. Implementation of readpage/writepage started.
396 Fix intermittent problem with incorrect smb header checking on badly
397 fragmented tcp responses
401 Fixes to setting of allocation size and file size.
405 Various 2.5.38 fixes. Now works on 2.5.38
409 Prepare for 2.5 kernel merge. Remove ifdefs.
413 Socket buffer management fixes. Fix dual free.
417 Various big endian fixes for hardlinks and symlinks and also for dfs.
421 Various big endian fixes for servers with Unix extensions such as Samba
425 Various FindNext fixes for incorrect filenames on large directory searches on big endian
426 clients. basic posix file i/o tests now work on big endian machines, not just le
430 SessionSetup and NegotiateProtocol now work from Big Endian machines.
431 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
432 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
436 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
437 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
441 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
442 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
443 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
444 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
448 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
449 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
453 Rewrote much of connection and mount/unmount logic to handle bugs with
454 multiple uses to same share, multiple users to same server etc.
458 Fixed major problem with dentry corruption (missing call to dput)
462 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
463 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
464 although corresponding function not fully implemented in the vfs yet
468 Fixed dentry caching bug, misc. cleanup
472 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
473 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
474 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
478 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
479 and tested against Samba 2.2.5
484 1) Fixed lockrange to be correct (it was one byte too short)
486 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
487 show range as locked when there is a conflict with an existing lock.
489 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
490 in most cases. Eventually will offer optional ability to query server for the correct perms.
492 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
493 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
496 4) Fixed error logging of valid mount options
498 5) Removed logging of password field.
500 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
501 and cleaned them up and made them more consistent with other cifs functions.
503 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
504 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
505 nor is the symlink support using the Unix extensions
507 8) Started adding the readlink and follow_link code