3 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
4 transact response for an SMB request and search entry split across two frames.
5 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
6 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
7 unless server explicitly claims to support them in CIFS Unix extensions
8 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
9 different users from the same client to the same server. Fix oops in
14 Fix updates of DOS attributes and time fields so that files on NT4 servers
15 do not get marked delete on close. Display sizes of cifs buffer pools in
16 cifs stats. Fix oops in unmount when cifsd thread being killed by
17 shutdown. Add generic readv/writev and aio support. Report inode numbers
18 consistently in readdir and lookup (when serverino mount option is
19 specified use the inode number that the server reports - for both lookup
20 and readdir, otherwise by default the locally generated inode number is used
21 for inodes created in either path since servers are not always able to
22 provide unique inode numbers when exporting multiple volumes from under one
27 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
28 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
29 (mostly affects NT4 servers) by retry with handle based network operation.
30 Add new POSIX Query FS Info for returning statfs info more accurately.
31 Handle passwords with multiple commas in them.
35 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
36 Fix capabilities flags for large readx so as to allow reads larger than 64K.
40 Add module init parm for large SMB buffer size (to allow it to be changed
41 from its default of 16K) which is especially useful for large file copy
42 when mounting with the directio mount option. Fix oops after
43 returning from mount when experimental ExtendedSecurity enabled and
44 SpnegoNegotiated returning invalid error. Fix case to retry better when
45 peek returns from 1 to 3 bytes on socket which should have more data.
46 Fixed path based calls (such as cifs lookup) to handle path names
47 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
48 from Samba server to DC (Samba required dummy LM password).
52 Turn off DNOTIFY (directory change notification support) by default
53 (unless built with the experimental flag) to fix hang with KDE
54 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
55 waiting on an SMB response) in SendReceive when session dies but
56 reconnects quickly from another task. Add module init parms for
57 minimum number of large and small network buffers in the buffer pools,
58 and for the maximum number of simultaneous requests.
62 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
63 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
64 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
65 improperly zeroed buffer in CIFS Unix extensions set times call.
69 Fix internationlization problem in cifs readdir with filenames that map to
70 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
71 for readdir to netapp servers. Fix search rewind (seek into readdir to return
72 non-consecutive entries). Do not do readdir when server negotiates
73 buffer size to small to fit filename. Add support for reading POSIX ACLs from
74 the server (add also acl and noacl mount options).
78 Optionally allow using server side inode numbers, rather than client generated
79 ones by specifying mount option "serverino" - this is required for some apps
80 to work which double check hardlinked files and have persistent inode numbers.
84 Multiple bigendian fixes. On little endian systems (for reconnect after
85 network failure) fix tcp session reconnect code so we do not try first
86 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
87 as directories rather than symlinks because we can do follow link on them.
91 Add config option to enable XATTR (extended attribute) support, mapping
92 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
93 minor fixes pointed out by the Stanford SWAT checker (mostly missing
94 or out of order NULL pointer checks in little used error paths).
98 Add new mount parm to control whether mode check (generic_permission) is done
99 on the client. If Unix extensions are enabled and the uids on the client
100 and server do not match, client permission checks are meaningless on
101 server uids that do not exist on the client (this does not affect the
102 normal ACL check which occurs on the server). Fix default uid
103 on mknod to match create and mkdir. Add optional mount parm to allow
104 override of the default uid behavior (in which the server sets the uid
105 and gid of newly created files). Normally for network filesystem mounts
106 user want the server to set the uid/gid on newly created files (rather than
107 using uid of the client processes you would in a local filesystem).
111 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
112 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
113 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
114 (block/char/fifo) properly. Remove spurious mount warning log entry when
115 credentials passed as mount argument. Set major/minor device number in
116 inode for block and char devices when unix extensions enabled.
120 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
121 amounts of return data. Properly limit requests to MAX_REQ (50
122 is the usual maximum active multiplex SMB/CIFS requests per server).
123 Do not kill cifsd (and thus hurt the other SMB session) when more than one
124 session to the same server (but with different userids) exists and one
125 of the two user's smb sessions is being removed while leaving the other.
126 Do not loop reconnecting in cifsd demultiplex thread when admin
127 kills the thread without going through unmount.
131 Do not rename hardlinked files (since that should be a noop). Flush
132 cached write behind data when reopening a file after session abend,
133 except when already in write. Grab per socket sem during reconnect
134 to avoid oops in sendmsg if overlapping with reconnect. Do not
135 reset cached inode file size on readdir for files open for write on
141 Update number of blocks in file so du command is happier (in Linux a fake
142 blocksize of 512 is required for calculating number of blocks in inode).
143 Fix prepare write of partial pages to read in data from server if possible.
144 Fix race on tcpStatus field between unmount and reconnection code, causing
145 cifsd process sometimes to hang around forever. Improve out of memory
146 checks in cifs_filldir
150 Fix incorrect file size in file handle based setattr on big endian hardware.
151 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
152 and closing file structs in writepage/partialpagewrite. Add statistics
153 for each mounted share (new menuconfig option). Fix endianness problem in
154 volume information displayed in /proc/fs/cifs/DebugData (only affects
155 affects big endian architectures). Prevent renames while constructing
156 path names for open, mkdir and rmdir.
160 Change to mempools for alloc smb request buffers and multiplex structs
161 to better handle low memory problems (and potential deadlocks).
165 Fix incomplete listings of large directories on Samba servers when Unix
166 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
167 rename deadlock when writing out dirty pages at same time.
171 Fix open of files in which O_CREATE can cause the mode to change in
172 some cases. Fix case in which retry of write overlaps file close.
173 Fix PPC64 build error. Reduce excessive stack usage in smb password
174 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
178 Fixes for large file copy, signal handling, socket retry, buffer
179 allocation and low memory situations.
183 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
184 also now allowing support for specifying client netbiosname. NT4 support added.
188 Fix reconnection (and certain failed mounts) to properly wake up the
189 blocked users thread so it does not seem hung (in some cases was blocked
190 until the cifs receive timeout expired). Fix spurious error logging
191 to kernel log when application with open network files killed.
195 Fix /proc/fs module unload warning message (that could be logged
196 to the kernel log). Fix intermittent failure in connectathon
197 test7 (hardlink count not immediately refreshed in case in which
198 inode metadata can be incorrectly kept cached when time near zero)
202 Allow file_mode and dir_mode (specified at mount time) to be enforced
203 locally (the server already enforced its own ACLs too) for servers
204 that do not report the correct mode (do not support the
205 CIFS Unix Extensions).
209 Fix some small memory leaks in some unmount error paths. Fix major leak
210 of cache pages in readpages causing multiple read oriented stress
211 testcases (including fsx, and even large file copy) to fail over time.
215 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
216 This allows files that differ only in case and improves performance of file
217 creation and file open to such servers. Fix semaphore conflict which causes
218 slow delete of open file to Samba (which unfortunately can cause an oplock
219 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
223 fixes to cifs_readpages for fsx test case
227 Fix caching data integrity bug when extending file size especially when no
228 oplock on file. Fix spurious logging of valid already parsed mount options
229 that are parsed outside of the cifs vfs such as nosuid.
234 Connect to server when port number override not specified, and tcp port
235 unitialized. Reset search to restart at correct file when kernel routine
236 filldir returns error during large directory searches (readdir).
240 Fix caching problem when files opened by multiple clients in which
241 page cache could contain stale data, and write through did
242 not occur often enough while file was still open when read ahead
243 (read oplock) not allowed. Treat "sep=" when first mount option
244 as an overrride of comma as the default separator between mount
249 Allow passwords longer than 16 bytes. Allow null password string.
253 Gracefully clean up failed mounts when attempting to mount to servers such as
254 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
255 embedded commas in mount parsing of passwords.
259 Invalidate local inode cached pages on oplock break and when last file
260 instance is closed so that the client does not continue using stale local
261 copy rather than later modified server copy of file. Do not reconnect
262 when server drops the tcp session prematurely before negotiate
263 protocol response. Fix oops in roepen_file when dentry freed. Allow
264 the support for CIFS Unix Extensions to be disabled via proc interface.
268 Fix hang in commit_write during reconnection of open files under heavy load.
269 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
270 which also fixes any possible races when cifs signatures are enabled in SMBs
271 being sent out of signature sequence number order.
275 Fix byte range locking bug (endian problem) causing bad offset and
280 Fix oops (in send_sig) caused by CIFS unmount code trying to
281 wake up the demultiplex thread after it had exited. Do not log
282 error on harmless oplock release of closed handle.
286 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
287 Fix problem reconnecting secondary mounts to same server after session
288 failure. Fix invalid dentry - race in mkdir when directory gets created
289 by another client between the lookup and mkdir.
293 Fix to list processing in reopen_files. Fix reconnection when server hung
294 but tcpip session still alive. Set proper timeout on socket read.
298 Add missing mount options including iocharset. SMP fixes in write and open.
299 Fix errors in reconnecting after TCP session failure. Fix module unloading
300 of default nls codepage
304 Active smb transactions should never go negative (fix double FreeXid). Fix
305 list processing in file routines. Check return code on kmalloc in open.
306 Fix spinlock usage for SMP.
310 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
311 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
312 on create hard link when server does not support them.
316 Fix scheduling while atomic error in getting inode info on newly created file.
317 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
321 Fix oops on write to dead tcp session. Remove error log write for case when file open
322 O_CREAT but not O_EXCL
326 Fix non-POSIX behavior on rename of open file and delete of open file by taking
327 advantage of trans2 SetFileInfo rename facility if available on target server.
328 Retry on ENOSPC and EAGAIN socket errors.
332 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
333 allocation size miscalculation. After oplock token lost do not read through
338 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
342 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
343 during auto reconnection to server after server recovered from failure.
347 Finish support for Linux 2.5 open/create changes, which removes the
348 redundant NTCreate/QPathInfo/close that was sent during file create.
349 Enable oplock by default. Enable packet signing by default (needed to
350 access many recent Windows servers)
354 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
355 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
356 we will choose a cifs user session (smb uid) that better matches the local
357 uid if a) the mount uid does not match the current uid and b) we have another
358 session to the same server (ip address) for a different mount which
359 matches the current local uid.
363 Add support for mknod of block or character devices. Fix oplock
364 code (distributed caching) to properly send response to oplock
369 Finish up CIFS packet digital signing for the default
370 NTLM security case. This should help Windows 2003
371 network interoperability since it is common for
372 packet signing to be required now. Fix statfs (stat -f)
373 which recently started returning errors due to
374 invalid value (-1 instead of 0) being set in the
375 struct kstatfs f_ffiles field.
379 Fix oops on stopping oplock thread when removing cifs when
384 Fix mount options for ro (readonly), uid, gid and file and directory mode.
388 Fix errors displayed on failed mounts to be more understandable.
389 Fixed various incorrect or misleading smb to posix error code mappings.
393 Fix display of NTFS DFS junctions to display as symlinks.
394 They are the network equivalent. Fix oops in
395 cifs_partialpagewrite caused by missing spinlock protection
396 of openfile linked list. Allow writebehind caching errors to
397 be returned to the application at file close.
401 Clean up options displayed in /proc/mounts by show_options to
402 be more consistent with other filesystems.
406 Fix delete of readonly file to Windows servers. Reflect
407 presence or absence of read only dos attribute in mode
408 bits for servers that do not support CIFS Unix extensions.
409 Fix shortened results on readdir of large directories to
410 servers supporting CIFS Unix extensions (caused by
411 incorrect resume key).
415 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
419 unload nls if mount fails.
423 Add resume key support to search (readdir) code to workaround
424 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
425 allows disabling caching of attribute information for
430 Add more oplock handling (distributed caching code). Remove
431 dead code. Remove excessive stack space utilization from
436 Fix oops in get dfs referral (triggered when null path sent in to
437 mount). Add support for overriding rsize at mount time.
441 Fix buffer overrun in readdir which caused intermittent kernel oopses.
442 Fix writepage code to release kmap on write data. Allow "-ip=" new
443 mount option to be passed in on parameter distinct from the first part
444 (server name portion of) the UNC name. Allow override of the
445 tcp port of the target server via new mount option "-port="
449 Fix search handle leak on rewind. Fix setuid and gid so that they are
450 reflected in the local inode immediately. Cleanup of whitespace
451 to make 2.4 and 2.5 versions more consistent.
456 Fix signal sending so that captive thread (cifsd) exits on umount
457 (which was causing the warning in kmem_cache_free of the request buffers
458 at rmmod time). This had broken as a sideeffect of the recent global
459 kernel change to daemonize. Fix memory leak in readdir code which
460 showed up in "ls -R" (and applications that did search rewinding).
464 Reconnect tids and fids after session reconnection (still do not
465 reconnect byte range locks though). Fix problem caching
466 lookup information for directory inodes, improving performance,
467 especially in deep directory trees. Fix various build warnings.
471 Finish fixes to commit write for caching/readahead consistency. fsx
472 now works to Samba servers. Fix oops caused when readahead
473 was interrupted by a signal.
477 Fix data corruption (in partial page after truncate) that caused fsx to
478 fail to Windows servers. Cleaned up some extraneous error logging in
479 common error paths. Add generic sendfile support.
483 Fix memory leak in AllocMidQEntry.
484 Finish reconnection logic, so connection with server can be dropped
485 (or server rebooted) and the cifs client will reconnect.
489 Fix temporary socket leak when bad userid or password specified
490 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
491 over 16K to allow negotiation of up to Samba and Windows server default read
492 sizes. Add support for readpages
496 Fix oops when username not passed in on mount. Extensive fixes and improvements
497 to error logging (strip redundant newlines, change debug macros to ensure newline
498 passed in and to be more consistent). Fix writepage wrong file handle problem,
499 a readonly file handle could be incorrectly used to attempt to write out
500 file updates through the page cache to multiply open files. This could cause
501 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
502 shares to the same Windows server when using different usernames
503 (doing this to Samba servers worked but Windows was rejecting it) - now it is
504 possible to use different userids when connecting to the same server from a
505 Linux client. Fix oops when treeDisconnect called during unmount on
506 previously freed socket.
510 Fix oops in readpages caused by not setting address space operations in inode in
515 Includes support for deleting of open files and renaming over existing files (per POSIX
516 requirement). Add readlink support for Windows junction points (directory symlinks).
520 Changed read and write to go through pagecache. Added additional address space operations.
521 Memory mapped operations now working.
525 Added writepage code for additional memory mapping support. Fixed leak in xids causing
526 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
527 every stat call. Additional formatting cleanup.
531 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
535 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
536 Also included a modified version of his fix to protect global list manipulation of
537 the smb session and tree connection and mid related global variables.
541 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
542 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
543 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
547 More stylistic updates to better match kernel style. Add additional statistics
548 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
549 and CIFS Packet Signing enablement.
553 Replace call to sleep_on with safer wait_on_event.
554 Make stylistic changes to better match kernel style recommendations.
555 Remove most typedef usage (except for the PDUs themselves).
559 Update mount so the -unc mount option is no longer required (the ip address can be specified
560 in a UNC style device name. Implementation of readpage/writepage started.
564 Fix intermittent problem with incorrect smb header checking on badly
565 fragmented tcp responses
569 Fixes to setting of allocation size and file size.
573 Various 2.5.38 fixes. Now works on 2.5.38
577 Prepare for 2.5 kernel merge. Remove ifdefs.
581 Socket buffer management fixes. Fix dual free.
585 Various big endian fixes for hardlinks and symlinks and also for dfs.
589 Various big endian fixes for servers with Unix extensions such as Samba
593 Various FindNext fixes for incorrect filenames on large directory searches on big endian
594 clients. basic posix file i/o tests now work on big endian machines, not just le
598 SessionSetup and NegotiateProtocol now work from Big Endian machines.
599 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
600 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
604 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
605 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
609 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
610 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
611 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
612 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
616 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
617 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
621 Rewrote much of connection and mount/unmount logic to handle bugs with
622 multiple uses to same share, multiple users to same server etc.
626 Fixed major problem with dentry corruption (missing call to dput)
630 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
631 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
632 although corresponding function not fully implemented in the vfs yet
636 Fixed dentry caching bug, misc. cleanup
640 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
641 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
642 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
646 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
647 and tested against Samba 2.2.5
652 1) Fixed lockrange to be correct (it was one byte too short)
654 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
655 show range as locked when there is a conflict with an existing lock.
657 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
658 in most cases. Eventually will offer optional ability to query server for the correct perms.
660 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
661 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
664 4) Fixed error logging of valid mount options
666 5) Removed logging of password field.
668 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
669 and cleaned them up and made them more consistent with other cifs functions.
671 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
672 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
673 nor is the symlink support using the Unix extensions
675 8) Started adding the readlink and follow_link code
projects / linux-2.6-microblaze.git / blob