3 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
4 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
5 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
6 (block/char/fifo) properly. Remove spurious mount warning log entry when
7 credentials passed as mount argument. Set major/minor device number in
8 inode for block and char devices when unix extensions enabled.
12 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
13 amounts of return data. Properly limit requests to MAX_REQ (50
14 is the usual maximum active multiplex SMB/CIFS requests per server).
15 Do not kill cifsd (and thus hurt the other SMB session) when more than one
16 session to the same server (but with different userids) exists and one
17 of the two user's smb sessions is being removed while leaving the other.
18 Do not loop reconnecting in cifsd demultiplex thread when admin
19 kills the thread without going through unmount.
23 Do not rename hardlinked files (since that should be a noop). Flush
24 cached write behind data when reopening a file after session abend,
25 except when already in write. Grab per socket sem during reconnect
26 to avoid oops in sendmsg if overlapping with reconnect. Do not
27 reset cached inode file size on readdir for files open for write on
33 Update number of blocks in file so du command is happier (in Linux a fake
34 blocksize of 512 is required for calculating number of blocks in inode).
35 Fix prepare write of partial pages to read in data from server if possible.
36 Fix race on tcpStatus field between unmount and reconnection code, causing
37 cifsd process sometimes to hang around forever. Improve out of memory
38 checks in cifs_filldir
42 Fix incorrect file size in file handle based setattr on big endian hardware.
43 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
44 and closing file structs in writepage/partialpagewrite. Add statistics
45 for each mounted share (new menuconfig option). Fix endianness problem in
46 volume information displayed in /proc/fs/cifs/DebugData (only affects
47 affects big endian architectures). Prevent renames while constructing
48 path names for open, mkdir and rmdir.
52 Change to mempools for alloc smb request buffers and multiplex structs
53 to better handle low memory problems (and potential deadlocks).
57 Fix incomplete listings of large directories on Samba servers when Unix
58 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
59 rename deadlock when writing out dirty pages at same time.
63 Fix open of files in which O_CREATE can cause the mode to change in
64 some cases. Fix case in which retry of write overlaps file close.
65 Fix PPC64 build error. Reduce excessive stack usage in smb password
66 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
70 Fixes for large file copy, signal handling, socket retry, buffer
71 allocation and low memory situations.
75 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
76 also now allowing support for specifying client netbiosname. NT4 support added.
80 Fix reconnection (and certain failed mounts) to properly wake up the
81 blocked users thread so it does not seem hung (in some cases was blocked
82 until the cifs receive timeout expired). Fix spurious error logging
83 to kernel log when application with open network files killed.
87 Fix /proc/fs module unload warning message (that could be logged
88 to the kernel log). Fix intermittent failure in connectathon
89 test7 (hardlink count not immediately refreshed in case in which
90 inode metadata can be incorrectly kept cached when time near zero)
94 Allow file_mode and dir_mode (specified at mount time) to be enforced
95 locally (the server already enforced its own ACLs too) for servers
96 that do not report the correct mode (do not support the
97 CIFS Unix Extensions).
101 Fix some small memory leaks in some unmount error paths. Fix major leak
102 of cache pages in readpages causing multiple read oriented stress
103 testcases (including fsx, and even large file copy) to fail over time.
107 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
108 This allows files that differ only in case and improves performance of file
109 creation and file open to such servers. Fix semaphore conflict which causes
110 slow delete of open file to Samba (which unfortunately can cause an oplock
111 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
115 fixes to cifs_readpages for fsx test case
119 Fix caching data integrity bug when extending file size especially when no
120 oplock on file. Fix spurious logging of valid already parsed mount options
121 that are parsed outside of the cifs vfs such as nosuid.
126 Connect to server when port number override not specified, and tcp port
127 unitialized. Reset search to restart at correct file when kernel routine
128 filldir returns error during large directory searches (readdir).
132 Fix caching problem when files opened by multiple clients in which
133 page cache could contain stale data, and write through did
134 not occur often enough while file was still open when read ahead
135 (read oplock) not allowed. Treat "sep=" when first mount option
136 as an overrride of comma as the default separator between mount
141 Allow passwords longer than 16 bytes. Allow null password string.
145 Gracefully clean up failed mounts when attempting to mount to servers such as
146 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
147 embedded commas in mount parsing of passwords.
151 Invalidate local inode cached pages on oplock break and when last file
152 instance is closed so that the client does not continue using stale local
153 copy rather than later modified server copy of file. Do not reconnect
154 when server drops the tcp session prematurely before negotiate
155 protocol response. Fix oops in roepen_file when dentry freed. Allow
156 the support for CIFS Unix Extensions to be disabled via proc interface.
160 Fix hang in commit_write during reconnection of open files under heavy load.
161 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
162 which also fixes any possible races when cifs signatures are enabled in SMBs
163 being sent out of signature sequence number order.
167 Fix byte range locking bug (endian problem) causing bad offset and
172 Fix oops (in send_sig) caused by CIFS unmount code trying to
173 wake up the demultiplex thread after it had exited. Do not log
174 error on harmless oplock release of closed handle.
178 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
179 Fix problem reconnecting secondary mounts to same server after session
180 failure. Fix invalid dentry - race in mkdir when directory gets created
181 by another client between the lookup and mkdir.
185 Fix to list processing in reopen_files. Fix reconnection when server hung
186 but tcpip session still alive. Set proper timeout on socket read.
190 Add missing mount options including iocharset. SMP fixes in write and open.
191 Fix errors in reconnecting after TCP session failure. Fix module unloading
192 of default nls codepage
196 Active smb transactions should never go negative (fix double FreeXid). Fix
197 list processing in file routines. Check return code on kmalloc in open.
198 Fix spinlock usage for SMP.
202 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
203 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
204 on create hard link when server does not support them.
208 Fix scheduling while atomic error in getting inode info on newly created file.
209 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
213 Fix oops on write to dead tcp session. Remove error log write for case when file open
214 O_CREAT but not O_EXCL
218 Fix non-POSIX behavior on rename of open file and delete of open file by taking
219 advantage of trans2 SetFileInfo rename facility if available on target server.
220 Retry on ENOSPC and EAGAIN socket errors.
224 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
225 allocation size miscalculation. After oplock token lost do not read through
230 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
234 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
235 during auto reconnection to server after server recovered from failure.
239 Finish support for Linux 2.5 open/create changes, which removes the
240 redundant NTCreate/QPathInfo/close that was sent during file create.
241 Enable oplock by default. Enable packet signing by default (needed to
242 access many recent Windows servers)
246 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
247 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
248 we will choose a cifs user session (smb uid) that better matches the local
249 uid if a) the mount uid does not match the current uid and b) we have another
250 session to the same server (ip address) for a different mount which
251 matches the current local uid.
255 Add support for mknod of block or character devices. Fix oplock
256 code (distributed caching) to properly send response to oplock
261 Finish up CIFS packet digital signing for the default
262 NTLM security case. This should help Windows 2003
263 network interoperability since it is common for
264 packet signing to be required now. Fix statfs (stat -f)
265 which recently started returning errors due to
266 invalid value (-1 instead of 0) being set in the
267 struct kstatfs f_ffiles field.
271 Fix oops on stopping oplock thread when removing cifs when
276 Fix mount options for ro (readonly), uid, gid and file and directory mode.
280 Fix errors displayed on failed mounts to be more understandable.
281 Fixed various incorrect or misleading smb to posix error code mappings.
285 Fix display of NTFS DFS junctions to display as symlinks.
286 They are the network equivalent. Fix oops in
287 cifs_partialpagewrite caused by missing spinlock protection
288 of openfile linked list. Allow writebehind caching errors to
289 be returned to the application at file close.
293 Clean up options displayed in /proc/mounts by show_options to
294 be more consistent with other filesystems.
298 Fix delete of readonly file to Windows servers. Reflect
299 presence or absence of read only dos attribute in mode
300 bits for servers that do not support CIFS Unix extensions.
301 Fix shortened results on readdir of large directories to
302 servers supporting CIFS Unix extensions (caused by
303 incorrect resume key).
307 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
311 unload nls if mount fails.
315 Add resume key support to search (readdir) code to workaround
316 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
317 allows disabling caching of attribute information for
322 Add more oplock handling (distributed caching code). Remove
323 dead code. Remove excessive stack space utilization from
328 Fix oops in get dfs referral (triggered when null path sent in to
329 mount). Add support for overriding rsize at mount time.
333 Fix buffer overrun in readdir which caused intermittent kernel oopses.
334 Fix writepage code to release kmap on write data. Allow "-ip=" new
335 mount option to be passed in on parameter distinct from the first part
336 (server name portion of) the UNC name. Allow override of the
337 tcp port of the target server via new mount option "-port="
341 Fix search handle leak on rewind. Fix setuid and gid so that they are
342 reflected in the local inode immediately. Cleanup of whitespace
343 to make 2.4 and 2.5 versions more consistent.
348 Fix signal sending so that captive thread (cifsd) exits on umount
349 (which was causing the warning in kmem_cache_free of the request buffers
350 at rmmod time). This had broken as a sideeffect of the recent global
351 kernel change to daemonize. Fix memory leak in readdir code which
352 showed up in "ls -R" (and applications that did search rewinding).
356 Reconnect tids and fids after session reconnection (still do not
357 reconnect byte range locks though). Fix problem caching
358 lookup information for directory inodes, improving performance,
359 especially in deep directory trees. Fix various build warnings.
363 Finish fixes to commit write for caching/readahead consistency. fsx
364 now works to Samba servers. Fix oops caused when readahead
365 was interrupted by a signal.
369 Fix data corruption (in partial page after truncate) that caused fsx to
370 fail to Windows servers. Cleaned up some extraneous error logging in
371 common error paths. Add generic sendfile support.
375 Fix memory leak in AllocMidQEntry.
376 Finish reconnection logic, so connection with server can be dropped
377 (or server rebooted) and the cifs client will reconnect.
381 Fix temporary socket leak when bad userid or password specified
382 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
383 over 16K to allow negotiation of up to Samba and Windows server default read
384 sizes. Add support for readpages
388 Fix oops when username not passed in on mount. Extensive fixes and improvements
389 to error logging (strip redundant newlines, change debug macros to ensure newline
390 passed in and to be more consistent). Fix writepage wrong file handle problem,
391 a readonly file handle could be incorrectly used to attempt to write out
392 file updates through the page cache to multiply open files. This could cause
393 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
394 shares to the same Windows server when using different usernames
395 (doing this to Samba servers worked but Windows was rejecting it) - now it is
396 possible to use different userids when connecting to the same server from a
397 Linux client. Fix oops when treeDisconnect called during unmount on
398 previously freed socket.
402 Fix oops in readpages caused by not setting address space operations in inode in
407 Includes support for deleting of open files and renaming over existing files (per POSIX
408 requirement). Add readlink support for Windows junction points (directory symlinks).
412 Changed read and write to go through pagecache. Added additional address space operations.
413 Memory mapped operations now working.
417 Added writepage code for additional memory mapping support. Fixed leak in xids causing
418 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
419 every stat call. Additional formatting cleanup.
423 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
427 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
428 Also included a modified version of his fix to protect global list manipulation of
429 the smb session and tree connection and mid related global variables.
433 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
434 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
435 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
439 More stylistic updates to better match kernel style. Add additional statistics
440 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
441 and CIFS Packet Signing enablement.
445 Replace call to sleep_on with safer wait_on_event.
446 Make stylistic changes to better match kernel style recommendations.
447 Remove most typedef usage (except for the PDUs themselves).
451 Update mount so the -unc mount option is no longer required (the ip address can be specified
452 in a UNC style device name. Implementation of readpage/writepage started.
456 Fix intermittent problem with incorrect smb header checking on badly
457 fragmented tcp responses
461 Fixes to setting of allocation size and file size.
465 Various 2.5.38 fixes. Now works on 2.5.38
469 Prepare for 2.5 kernel merge. Remove ifdefs.
473 Socket buffer management fixes. Fix dual free.
477 Various big endian fixes for hardlinks and symlinks and also for dfs.
481 Various big endian fixes for servers with Unix extensions such as Samba
485 Various FindNext fixes for incorrect filenames on large directory searches on big endian
486 clients. basic posix file i/o tests now work on big endian machines, not just le
490 SessionSetup and NegotiateProtocol now work from Big Endian machines.
491 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
492 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
496 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
497 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
501 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
502 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
503 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
504 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
508 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
509 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
513 Rewrote much of connection and mount/unmount logic to handle bugs with
514 multiple uses to same share, multiple users to same server etc.
518 Fixed major problem with dentry corruption (missing call to dput)
522 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
523 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
524 although corresponding function not fully implemented in the vfs yet
528 Fixed dentry caching bug, misc. cleanup
532 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
533 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
534 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
538 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
539 and tested against Samba 2.2.5
544 1) Fixed lockrange to be correct (it was one byte too short)
546 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
547 show range as locked when there is a conflict with an existing lock.
549 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
550 in most cases. Eventually will offer optional ability to query server for the correct perms.
552 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
553 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
556 4) Fixed error logging of valid mount options
558 5) Removed logging of password field.
560 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
561 and cleaned them up and made them more consistent with other cifs functions.
563 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
564 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
565 nor is the symlink support using the Unix extensions
567 8) Started adding the readlink and follow_link code