3 Add module init parm for large SMB buffer size (to allow it to be changed
4 from its default of 16K) which is especially useful for large file copy
5 when mounting with the directio mount option. Fix oops after
6 returning from mount when experimental ExtendedSecurity enabled and
7 SpnegoNegotiated returning invalid error. Fix case to retry better when
8 peek returns from 1 to 3 bytes on socket which should have more data.
9 Fixed path based calls (such as cifs lookup) to handle path names
10 longer than 530 (now can handle PATH_MAX).
14 Turn off DNOTIFY (directory change notification support) by default
15 (unless built with the experimental flag) to fix hang with KDE
16 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
17 waiting on an SMB response) in SendReceive when session dies but
18 reconnects quickly from another task. Add module init parms for
19 minimum number of large and small network buffers in the buffer pools,
20 and for the maximum number of simultaneous requests.
24 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
25 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
26 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
27 improperly zeroed buffer in CIFS Unix extensions set times call.
31 Fix internationlization problem in cifs readdir with filenames that map to
32 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
33 for readdir to netapp servers. Fix search rewind (seek into readdir to return
34 non-consecutive entries). Do not do readdir when server negotiates
35 buffer size to small to fit filename. Add support for reading POSIX ACLs from
36 the server (add also acl and noacl mount options).
40 Optionally allow using server side inode numbers, rather than client generated
41 ones by specifying mount option "serverino" - this is required for some apps
42 to work which double check hardlinked files and have persistent inode numbers.
46 Multiple bigendian fixes. On little endian systems (for reconnect after
47 network failure) fix tcp session reconnect code so we do not try first
48 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
49 as directories rather than symlinks because we can do follow link on them.
53 Add config option to enable XATTR (extended attribute) support, mapping
54 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
55 minor fixes pointed out by the Stanford SWAT checker (mostly missing
56 or out of order NULL pointer checks in little used error paths).
60 Add new mount parm to control whether mode check (generic_permission) is done
61 on the client. If Unix extensions are enabled and the uids on the client
62 and server do not match, client permission checks are meaningless on
63 server uids that do not exist on the client (this does not affect the
64 normal ACL check which occurs on the server). Fix default uid
65 on mknod to match create and mkdir. Add optional mount parm to allow
66 override of the default uid behavior (in which the server sets the uid
67 and gid of newly created files). Normally for network filesystem mounts
68 user want the server to set the uid/gid on newly created files (rather than
69 using uid of the client processes you would in a local filesystem).
73 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
74 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
75 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
76 (block/char/fifo) properly. Remove spurious mount warning log entry when
77 credentials passed as mount argument. Set major/minor device number in
78 inode for block and char devices when unix extensions enabled.
82 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
83 amounts of return data. Properly limit requests to MAX_REQ (50
84 is the usual maximum active multiplex SMB/CIFS requests per server).
85 Do not kill cifsd (and thus hurt the other SMB session) when more than one
86 session to the same server (but with different userids) exists and one
87 of the two user's smb sessions is being removed while leaving the other.
88 Do not loop reconnecting in cifsd demultiplex thread when admin
89 kills the thread without going through unmount.
93 Do not rename hardlinked files (since that should be a noop). Flush
94 cached write behind data when reopening a file after session abend,
95 except when already in write. Grab per socket sem during reconnect
96 to avoid oops in sendmsg if overlapping with reconnect. Do not
97 reset cached inode file size on readdir for files open for write on
103 Update number of blocks in file so du command is happier (in Linux a fake
104 blocksize of 512 is required for calculating number of blocks in inode).
105 Fix prepare write of partial pages to read in data from server if possible.
106 Fix race on tcpStatus field between unmount and reconnection code, causing
107 cifsd process sometimes to hang around forever. Improve out of memory
108 checks in cifs_filldir
112 Fix incorrect file size in file handle based setattr on big endian hardware.
113 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
114 and closing file structs in writepage/partialpagewrite. Add statistics
115 for each mounted share (new menuconfig option). Fix endianness problem in
116 volume information displayed in /proc/fs/cifs/DebugData (only affects
117 affects big endian architectures). Prevent renames while constructing
118 path names for open, mkdir and rmdir.
122 Change to mempools for alloc smb request buffers and multiplex structs
123 to better handle low memory problems (and potential deadlocks).
127 Fix incomplete listings of large directories on Samba servers when Unix
128 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
129 rename deadlock when writing out dirty pages at same time.
133 Fix open of files in which O_CREATE can cause the mode to change in
134 some cases. Fix case in which retry of write overlaps file close.
135 Fix PPC64 build error. Reduce excessive stack usage in smb password
136 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
140 Fixes for large file copy, signal handling, socket retry, buffer
141 allocation and low memory situations.
145 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
146 also now allowing support for specifying client netbiosname. NT4 support added.
150 Fix reconnection (and certain failed mounts) to properly wake up the
151 blocked users thread so it does not seem hung (in some cases was blocked
152 until the cifs receive timeout expired). Fix spurious error logging
153 to kernel log when application with open network files killed.
157 Fix /proc/fs module unload warning message (that could be logged
158 to the kernel log). Fix intermittent failure in connectathon
159 test7 (hardlink count not immediately refreshed in case in which
160 inode metadata can be incorrectly kept cached when time near zero)
164 Allow file_mode and dir_mode (specified at mount time) to be enforced
165 locally (the server already enforced its own ACLs too) for servers
166 that do not report the correct mode (do not support the
167 CIFS Unix Extensions).
171 Fix some small memory leaks in some unmount error paths. Fix major leak
172 of cache pages in readpages causing multiple read oriented stress
173 testcases (including fsx, and even large file copy) to fail over time.
177 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
178 This allows files that differ only in case and improves performance of file
179 creation and file open to such servers. Fix semaphore conflict which causes
180 slow delete of open file to Samba (which unfortunately can cause an oplock
181 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
185 fixes to cifs_readpages for fsx test case
189 Fix caching data integrity bug when extending file size especially when no
190 oplock on file. Fix spurious logging of valid already parsed mount options
191 that are parsed outside of the cifs vfs such as nosuid.
196 Connect to server when port number override not specified, and tcp port
197 unitialized. Reset search to restart at correct file when kernel routine
198 filldir returns error during large directory searches (readdir).
202 Fix caching problem when files opened by multiple clients in which
203 page cache could contain stale data, and write through did
204 not occur often enough while file was still open when read ahead
205 (read oplock) not allowed. Treat "sep=" when first mount option
206 as an overrride of comma as the default separator between mount
211 Allow passwords longer than 16 bytes. Allow null password string.
215 Gracefully clean up failed mounts when attempting to mount to servers such as
216 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
217 embedded commas in mount parsing of passwords.
221 Invalidate local inode cached pages on oplock break and when last file
222 instance is closed so that the client does not continue using stale local
223 copy rather than later modified server copy of file. Do not reconnect
224 when server drops the tcp session prematurely before negotiate
225 protocol response. Fix oops in roepen_file when dentry freed. Allow
226 the support for CIFS Unix Extensions to be disabled via proc interface.
230 Fix hang in commit_write during reconnection of open files under heavy load.
231 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
232 which also fixes any possible races when cifs signatures are enabled in SMBs
233 being sent out of signature sequence number order.
237 Fix byte range locking bug (endian problem) causing bad offset and
242 Fix oops (in send_sig) caused by CIFS unmount code trying to
243 wake up the demultiplex thread after it had exited. Do not log
244 error on harmless oplock release of closed handle.
248 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
249 Fix problem reconnecting secondary mounts to same server after session
250 failure. Fix invalid dentry - race in mkdir when directory gets created
251 by another client between the lookup and mkdir.
255 Fix to list processing in reopen_files. Fix reconnection when server hung
256 but tcpip session still alive. Set proper timeout on socket read.
260 Add missing mount options including iocharset. SMP fixes in write and open.
261 Fix errors in reconnecting after TCP session failure. Fix module unloading
262 of default nls codepage
266 Active smb transactions should never go negative (fix double FreeXid). Fix
267 list processing in file routines. Check return code on kmalloc in open.
268 Fix spinlock usage for SMP.
272 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
273 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
274 on create hard link when server does not support them.
278 Fix scheduling while atomic error in getting inode info on newly created file.
279 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
283 Fix oops on write to dead tcp session. Remove error log write for case when file open
284 O_CREAT but not O_EXCL
288 Fix non-POSIX behavior on rename of open file and delete of open file by taking
289 advantage of trans2 SetFileInfo rename facility if available on target server.
290 Retry on ENOSPC and EAGAIN socket errors.
294 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
295 allocation size miscalculation. After oplock token lost do not read through
300 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
304 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
305 during auto reconnection to server after server recovered from failure.
309 Finish support for Linux 2.5 open/create changes, which removes the
310 redundant NTCreate/QPathInfo/close that was sent during file create.
311 Enable oplock by default. Enable packet signing by default (needed to
312 access many recent Windows servers)
316 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
317 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
318 we will choose a cifs user session (smb uid) that better matches the local
319 uid if a) the mount uid does not match the current uid and b) we have another
320 session to the same server (ip address) for a different mount which
321 matches the current local uid.
325 Add support for mknod of block or character devices. Fix oplock
326 code (distributed caching) to properly send response to oplock
331 Finish up CIFS packet digital signing for the default
332 NTLM security case. This should help Windows 2003
333 network interoperability since it is common for
334 packet signing to be required now. Fix statfs (stat -f)
335 which recently started returning errors due to
336 invalid value (-1 instead of 0) being set in the
337 struct kstatfs f_ffiles field.
341 Fix oops on stopping oplock thread when removing cifs when
346 Fix mount options for ro (readonly), uid, gid and file and directory mode.
350 Fix errors displayed on failed mounts to be more understandable.
351 Fixed various incorrect or misleading smb to posix error code mappings.
355 Fix display of NTFS DFS junctions to display as symlinks.
356 They are the network equivalent. Fix oops in
357 cifs_partialpagewrite caused by missing spinlock protection
358 of openfile linked list. Allow writebehind caching errors to
359 be returned to the application at file close.
363 Clean up options displayed in /proc/mounts by show_options to
364 be more consistent with other filesystems.
368 Fix delete of readonly file to Windows servers. Reflect
369 presence or absence of read only dos attribute in mode
370 bits for servers that do not support CIFS Unix extensions.
371 Fix shortened results on readdir of large directories to
372 servers supporting CIFS Unix extensions (caused by
373 incorrect resume key).
377 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
381 unload nls if mount fails.
385 Add resume key support to search (readdir) code to workaround
386 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
387 allows disabling caching of attribute information for
392 Add more oplock handling (distributed caching code). Remove
393 dead code. Remove excessive stack space utilization from
398 Fix oops in get dfs referral (triggered when null path sent in to
399 mount). Add support for overriding rsize at mount time.
403 Fix buffer overrun in readdir which caused intermittent kernel oopses.
404 Fix writepage code to release kmap on write data. Allow "-ip=" new
405 mount option to be passed in on parameter distinct from the first part
406 (server name portion of) the UNC name. Allow override of the
407 tcp port of the target server via new mount option "-port="
411 Fix search handle leak on rewind. Fix setuid and gid so that they are
412 reflected in the local inode immediately. Cleanup of whitespace
413 to make 2.4 and 2.5 versions more consistent.
418 Fix signal sending so that captive thread (cifsd) exits on umount
419 (which was causing the warning in kmem_cache_free of the request buffers
420 at rmmod time). This had broken as a sideeffect of the recent global
421 kernel change to daemonize. Fix memory leak in readdir code which
422 showed up in "ls -R" (and applications that did search rewinding).
426 Reconnect tids and fids after session reconnection (still do not
427 reconnect byte range locks though). Fix problem caching
428 lookup information for directory inodes, improving performance,
429 especially in deep directory trees. Fix various build warnings.
433 Finish fixes to commit write for caching/readahead consistency. fsx
434 now works to Samba servers. Fix oops caused when readahead
435 was interrupted by a signal.
439 Fix data corruption (in partial page after truncate) that caused fsx to
440 fail to Windows servers. Cleaned up some extraneous error logging in
441 common error paths. Add generic sendfile support.
445 Fix memory leak in AllocMidQEntry.
446 Finish reconnection logic, so connection with server can be dropped
447 (or server rebooted) and the cifs client will reconnect.
451 Fix temporary socket leak when bad userid or password specified
452 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
453 over 16K to allow negotiation of up to Samba and Windows server default read
454 sizes. Add support for readpages
458 Fix oops when username not passed in on mount. Extensive fixes and improvements
459 to error logging (strip redundant newlines, change debug macros to ensure newline
460 passed in and to be more consistent). Fix writepage wrong file handle problem,
461 a readonly file handle could be incorrectly used to attempt to write out
462 file updates through the page cache to multiply open files. This could cause
463 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
464 shares to the same Windows server when using different usernames
465 (doing this to Samba servers worked but Windows was rejecting it) - now it is
466 possible to use different userids when connecting to the same server from a
467 Linux client. Fix oops when treeDisconnect called during unmount on
468 previously freed socket.
472 Fix oops in readpages caused by not setting address space operations in inode in
477 Includes support for deleting of open files and renaming over existing files (per POSIX
478 requirement). Add readlink support for Windows junction points (directory symlinks).
482 Changed read and write to go through pagecache. Added additional address space operations.
483 Memory mapped operations now working.
487 Added writepage code for additional memory mapping support. Fixed leak in xids causing
488 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
489 every stat call. Additional formatting cleanup.
493 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
497 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
498 Also included a modified version of his fix to protect global list manipulation of
499 the smb session and tree connection and mid related global variables.
503 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
504 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
505 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
509 More stylistic updates to better match kernel style. Add additional statistics
510 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
511 and CIFS Packet Signing enablement.
515 Replace call to sleep_on with safer wait_on_event.
516 Make stylistic changes to better match kernel style recommendations.
517 Remove most typedef usage (except for the PDUs themselves).
521 Update mount so the -unc mount option is no longer required (the ip address can be specified
522 in a UNC style device name. Implementation of readpage/writepage started.
526 Fix intermittent problem with incorrect smb header checking on badly
527 fragmented tcp responses
531 Fixes to setting of allocation size and file size.
535 Various 2.5.38 fixes. Now works on 2.5.38
539 Prepare for 2.5 kernel merge. Remove ifdefs.
543 Socket buffer management fixes. Fix dual free.
547 Various big endian fixes for hardlinks and symlinks and also for dfs.
551 Various big endian fixes for servers with Unix extensions such as Samba
555 Various FindNext fixes for incorrect filenames on large directory searches on big endian
556 clients. basic posix file i/o tests now work on big endian machines, not just le
560 SessionSetup and NegotiateProtocol now work from Big Endian machines.
561 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
562 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
566 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
567 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
571 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
572 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
573 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
574 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
578 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
579 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
583 Rewrote much of connection and mount/unmount logic to handle bugs with
584 multiple uses to same share, multiple users to same server etc.
588 Fixed major problem with dentry corruption (missing call to dput)
592 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
593 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
594 although corresponding function not fully implemented in the vfs yet
598 Fixed dentry caching bug, misc. cleanup
602 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
603 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
604 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
608 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
609 and tested against Samba 2.2.5
614 1) Fixed lockrange to be correct (it was one byte too short)
616 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
617 show range as locked when there is a conflict with an existing lock.
619 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
620 in most cases. Eventually will offer optional ability to query server for the correct perms.
622 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
623 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
626 4) Fixed error logging of valid mount options
628 5) Removed logging of password field.
630 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
631 and cleaned them up and made them more consistent with other cifs functions.
633 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
634 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
635 nor is the symlink support using the Unix extensions
637 8) Started adding the readlink and follow_link code
git://git.onelab.eu / linux-2.6.git / blob