3 Do not rename hardlinked files (since that should be a noop). Flush
4 cached write behind data when reopening a file after session abend,
5 except when already in write. Grab per socket sem during reconnect
6 to avoid oops in sendmsg if overlapping with reconnect.
11 Update number of blocks in file so du command is happier (in Linux a fake
12 blocksize of 512 is required for calculating number of blocks in inode).
13 Fix prepare write of partial pages to read in data from server if possible.
14 Fix race on tcpStatus field between unmount and reconnection code, causing
15 cifsd process sometimes to hang around forever. Improve out of memory
16 checks in cifs_filldir
20 Fix incorrect file size in file handle based setattr on big endian hardware.
21 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
22 and closing file structs in writepage/partialpagewrite. Add statistics
23 for each mounted share (new menuconfig option). Fix endianness problem in
24 volume information displayed in /proc/fs/cifs/DebugData (only affects
25 affects big endian architectures). Prevent renames while constructing
26 path names for open, mkdir and rmdir.
30 Change to mempools for alloc smb request buffers and multiplex structs
31 to better handle low memory problems (and potential deadlocks).
35 Fix incomplete listings of large directories on Samba servers when Unix
36 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
37 rename deadlock when writing out dirty pages at same time.
41 Fix open of files in which O_CREATE can cause the mode to change in
42 some cases. Fix case in which retry of write overlaps file close.
43 Fix PPC64 build error. Reduce excessive stack usage in smb password
44 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
48 Fixes for large file copy, signal handling, socket retry, buffer
49 allocation and low memory situations.
53 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
54 also now allowing support for specifying client netbiosname. NT4 support added.
58 Fix reconnection (and certain failed mounts) to properly wake up the
59 blocked users thread so it does not seem hung (in some cases was blocked
60 until the cifs receive timeout expired). Fix spurious error logging
61 to kernel log when application with open network files killed.
65 Fix /proc/fs module unload warning message (that could be logged
66 to the kernel log). Fix intermittent failure in connectathon
67 test7 (hardlink count not immediately refreshed in case in which
68 inode metadata can be incorrectly kept cached when time near zero)
72 Allow file_mode and dir_mode (specified at mount time) to be enforced
73 locally (the server already enforced its own ACLs too) for servers
74 that do not report the correct mode (do not support the
75 CIFS Unix Extensions).
79 Fix some small memory leaks in some unmount error paths. Fix major leak
80 of cache pages in readpages causing multiple read oriented stress
81 testcases (including fsx, and even large file copy) to fail over time.
85 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
86 This allows files that differ only in case and improves performance of file
87 creation and file open to such servers. Fix semaphore conflict which causes
88 slow delete of open file to Samba (which unfortunately can cause an oplock
89 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
93 fixes to cifs_readpages for fsx test case
97 Fix caching data integrity bug when extending file size especially when no
98 oplock on file. Fix spurious logging of valid already parsed mount options
99 that are parsed outside of the cifs vfs such as nosuid.
104 Connect to server when port number override not specified, and tcp port
105 unitialized. Reset search to restart at correct file when kernel routine
106 filldir returns error during large directory searches (readdir).
110 Fix caching problem when files opened by multiple clients in which
111 page cache could contain stale data, and write through did
112 not occur often enough while file was still open when read ahead
113 (read oplock) not allowed. Treat "sep=" when first mount option
114 as an overrride of comma as the default separator between mount
119 Allow passwords longer than 16 bytes. Allow null password string.
123 Gracefully clean up failed mounts when attempting to mount to servers such as
124 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
125 embedded commas in mount parsing of passwords.
129 Invalidate local inode cached pages on oplock break and when last file
130 instance is closed so that the client does not continue using stale local
131 copy rather than later modified server copy of file. Do not reconnect
132 when server drops the tcp session prematurely before negotiate
133 protocol response. Fix oops in roepen_file when dentry freed. Allow
134 the support for CIFS Unix Extensions to be disabled via proc interface.
138 Fix hang in commit_write during reconnection of open files under heavy load.
139 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
140 which also fixes any possible races when cifs signatures are enabled in SMBs
141 being sent out of signature sequence number order.
145 Fix byte range locking bug (endian problem) causing bad offset and
150 Fix oops (in send_sig) caused by CIFS unmount code trying to
151 wake up the demultiplex thread after it had exited. Do not log
152 error on harmless oplock release of closed handle.
156 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
157 Fix problem reconnecting secondary mounts to same server after session
158 failure. Fix invalid dentry - race in mkdir when directory gets created
159 by another client between the lookup and mkdir.
163 Fix to list processing in reopen_files. Fix reconnection when server hung
164 but tcpip session still alive. Set proper timeout on socket read.
168 Add missing mount options including iocharset. SMP fixes in write and open.
169 Fix errors in reconnecting after TCP session failure. Fix module unloading
170 of default nls codepage
174 Active smb transactions should never go negative (fix double FreeXid). Fix
175 list processing in file routines. Check return code on kmalloc in open.
176 Fix spinlock usage for SMP.
180 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
181 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
182 on create hard link when server does not support them.
186 Fix scheduling while atomic error in getting inode info on newly created file.
187 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
191 Fix oops on write to dead tcp session. Remove error log write for case when file open
192 O_CREAT but not O_EXCL
196 Fix non-POSIX behavior on rename of open file and delete of open file by taking
197 advantage of trans2 SetFileInfo rename facility if available on target server.
198 Retry on ENOSPC and EAGAIN socket errors.
202 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
203 allocation size miscalculation. After oplock token lost do not read through
208 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
212 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
213 during auto reconnection to server after server recovered from failure.
217 Finish support for Linux 2.5 open/create changes, which removes the
218 redundant NTCreate/QPathInfo/close that was sent during file create.
219 Enable oplock by default. Enable packet signing by default (needed to
220 access many recent Windows servers)
224 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
225 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
226 we will choose a cifs user session (smb uid) that better matches the local
227 uid if a) the mount uid does not match the current uid and b) we have another
228 session to the same server (ip address) for a different mount which
229 matches the current local uid.
233 Add support for mknod of block or character devices. Fix oplock
234 code (distributed caching) to properly send response to oplock
239 Finish up CIFS packet digital signing for the default
240 NTLM security case. This should help Windows 2003
241 network interoperability since it is common for
242 packet signing to be required now. Fix statfs (stat -f)
243 which recently started returning errors due to
244 invalid value (-1 instead of 0) being set in the
245 struct kstatfs f_ffiles field.
249 Fix oops on stopping oplock thread when removing cifs when
254 Fix mount options for ro (readonly), uid, gid and file and directory mode.
258 Fix errors displayed on failed mounts to be more understandable.
259 Fixed various incorrect or misleading smb to posix error code mappings.
263 Fix display of NTFS DFS junctions to display as symlinks.
264 They are the network equivalent. Fix oops in
265 cifs_partialpagewrite caused by missing spinlock protection
266 of openfile linked list. Allow writebehind caching errors to
267 be returned to the application at file close.
271 Clean up options displayed in /proc/mounts by show_options to
272 be more consistent with other filesystems.
276 Fix delete of readonly file to Windows servers. Reflect
277 presence or absence of read only dos attribute in mode
278 bits for servers that do not support CIFS Unix extensions.
279 Fix shortened results on readdir of large directories to
280 servers supporting CIFS Unix extensions (caused by
281 incorrect resume key).
285 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
289 unload nls if mount fails.
293 Add resume key support to search (readdir) code to workaround
294 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
295 allows disabling caching of attribute information for
300 Add more oplock handling (distributed caching code). Remove
301 dead code. Remove excessive stack space utilization from
306 Fix oops in get dfs referral (triggered when null path sent in to
307 mount). Add support for overriding rsize at mount time.
311 Fix buffer overrun in readdir which caused intermittent kernel oopses.
312 Fix writepage code to release kmap on write data. Allow "-ip=" new
313 mount option to be passed in on parameter distinct from the first part
314 (server name portion of) the UNC name. Allow override of the
315 tcp port of the target server via new mount option "-port="
319 Fix search handle leak on rewind. Fix setuid and gid so that they are
320 reflected in the local inode immediately. Cleanup of whitespace
321 to make 2.4 and 2.5 versions more consistent.
326 Fix signal sending so that captive thread (cifsd) exits on umount
327 (which was causing the warning in kmem_cache_free of the request buffers
328 at rmmod time). This had broken as a sideeffect of the recent global
329 kernel change to daemonize. Fix memory leak in readdir code which
330 showed up in "ls -R" (and applications that did search rewinding).
334 Reconnect tids and fids after session reconnection (still do not
335 reconnect byte range locks though). Fix problem caching
336 lookup information for directory inodes, improving performance,
337 especially in deep directory trees. Fix various build warnings.
341 Finish fixes to commit write for caching/readahead consistency. fsx
342 now works to Samba servers. Fix oops caused when readahead
343 was interrupted by a signal.
347 Fix data corruption (in partial page after truncate) that caused fsx to
348 fail to Windows servers. Cleaned up some extraneous error logging in
349 common error paths. Add generic sendfile support.
353 Fix memory leak in AllocMidQEntry.
354 Finish reconnection logic, so connection with server can be dropped
355 (or server rebooted) and the cifs client will reconnect.
359 Fix temporary socket leak when bad userid or password specified
360 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
361 over 16K to allow negotiation of up to Samba and Windows server default read
362 sizes. Add support for readpages
366 Fix oops when username not passed in on mount. Extensive fixes and improvements
367 to error logging (strip redundant newlines, change debug macros to ensure newline
368 passed in and to be more consistent). Fix writepage wrong file handle problem,
369 a readonly file handle could be incorrectly used to attempt to write out
370 file updates through the page cache to multiply open files. This could cause
371 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
372 shares to the same Windows server when using different usernames
373 (doing this to Samba servers worked but Windows was rejecting it) - now it is
374 possible to use different userids when connecting to the same server from a
375 Linux client. Fix oops when treeDisconnect called during unmount on
376 previously freed socket.
380 Fix oops in readpages caused by not setting address space operations in inode in
385 Includes support for deleting of open files and renaming over existing files (per POSIX
386 requirement). Add readlink support for Windows junction points (directory symlinks).
390 Changed read and write to go through pagecache. Added additional address space operations.
391 Memory mapped operations now working.
395 Added writepage code for additional memory mapping support. Fixed leak in xids causing
396 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
397 every stat call. Additional formatting cleanup.
401 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
405 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
406 Also included a modified version of his fix to protect global list manipulation of
407 the smb session and tree connection and mid related global variables.
411 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
412 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
413 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
417 More stylistic updates to better match kernel style. Add additional statistics
418 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
419 and CIFS Packet Signing enablement.
423 Replace call to sleep_on with safer wait_on_event.
424 Make stylistic changes to better match kernel style recommendations.
425 Remove most typedef usage (except for the PDUs themselves).
429 Update mount so the -unc mount option is no longer required (the ip address can be specified
430 in a UNC style device name. Implementation of readpage/writepage started.
434 Fix intermittent problem with incorrect smb header checking on badly
435 fragmented tcp responses
439 Fixes to setting of allocation size and file size.
443 Various 2.5.38 fixes. Now works on 2.5.38
447 Prepare for 2.5 kernel merge. Remove ifdefs.
451 Socket buffer management fixes. Fix dual free.
455 Various big endian fixes for hardlinks and symlinks and also for dfs.
459 Various big endian fixes for servers with Unix extensions such as Samba
463 Various FindNext fixes for incorrect filenames on large directory searches on big endian
464 clients. basic posix file i/o tests now work on big endian machines, not just le
468 SessionSetup and NegotiateProtocol now work from Big Endian machines.
469 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
470 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
474 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
475 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
479 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
480 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
481 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
482 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
486 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
487 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
491 Rewrote much of connection and mount/unmount logic to handle bugs with
492 multiple uses to same share, multiple users to same server etc.
496 Fixed major problem with dentry corruption (missing call to dput)
500 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
501 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
502 although corresponding function not fully implemented in the vfs yet
506 Fixed dentry caching bug, misc. cleanup
510 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
511 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
512 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
516 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
517 and tested against Samba 2.2.5
522 1) Fixed lockrange to be correct (it was one byte too short)
524 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
525 show range as locked when there is a conflict with an existing lock.
527 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
528 in most cases. Eventually will offer optional ability to query server for the correct perms.
530 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
531 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
534 4) Fixed error logging of valid mount options
536 5) Removed logging of password field.
538 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
539 and cleaned them up and made them more consistent with other cifs functions.
541 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
542 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
543 nor is the symlink support using the Unix extensions
545 8) Started adding the readlink and follow_link code