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
10 cifs_close. Add mount option for remapping reserved characters in
11 filenames (also allow recognizing files with created by SFU which have any
12 of these seven reserved characters, except backslash, to be recognized).
13 Fix invalid transact2 message (we were sometimes trying to interpret
14 oplock breaks as SMB responses). Add ioctl for checking that the
15 current uid matches the uid of the mounter (needed by umount.cifs).
16 Reduce the number of large buffer allocations in cifs response processing
17 (significantly reduces memory pressure under heavy stress with multiple
18 processes accessing the same server at the same time).
22 Fix updates of DOS attributes and time fields so that files on NT4 servers
23 do not get marked delete on close. Display sizes of cifs buffer pools in
24 cifs stats. Fix oops in unmount when cifsd thread being killed by
25 shutdown. Add generic readv/writev and aio support. Report inode numbers
26 consistently in readdir and lookup (when serverino mount option is
27 specified use the inode number that the server reports - for both lookup
28 and readdir, otherwise by default the locally generated inode number is used
29 for inodes created in either path since servers are not always able to
30 provide unique inode numbers when exporting multiple volumes from under one
35 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
36 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
37 (mostly affects NT4 servers) by retry with handle based network operation.
38 Add new POSIX Query FS Info for returning statfs info more accurately.
39 Handle passwords with multiple commas in them.
43 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
44 Fix capabilities flags for large readx so as to allow reads larger than 64K.
48 Add module init parm for large SMB buffer size (to allow it to be changed
49 from its default of 16K) which is especially useful for large file copy
50 when mounting with the directio mount option. Fix oops after
51 returning from mount when experimental ExtendedSecurity enabled and
52 SpnegoNegotiated returning invalid error. Fix case to retry better when
53 peek returns from 1 to 3 bytes on socket which should have more data.
54 Fixed path based calls (such as cifs lookup) to handle path names
55 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
56 from Samba server to DC (Samba required dummy LM password).
60 Turn off DNOTIFY (directory change notification support) by default
61 (unless built with the experimental flag) to fix hang with KDE
62 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
63 waiting on an SMB response) in SendReceive when session dies but
64 reconnects quickly from another task. Add module init parms for
65 minimum number of large and small network buffers in the buffer pools,
66 and for the maximum number of simultaneous requests.
70 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
71 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
72 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
73 improperly zeroed buffer in CIFS Unix extensions set times call.
77 Fix internationlization problem in cifs readdir with filenames that map to
78 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
79 for readdir to netapp servers. Fix search rewind (seek into readdir to return
80 non-consecutive entries). Do not do readdir when server negotiates
81 buffer size to small to fit filename. Add support for reading POSIX ACLs from
82 the server (add also acl and noacl mount options).
86 Optionally allow using server side inode numbers, rather than client generated
87 ones by specifying mount option "serverino" - this is required for some apps
88 to work which double check hardlinked files and have persistent inode numbers.
92 Multiple bigendian fixes. On little endian systems (for reconnect after
93 network failure) fix tcp session reconnect code so we do not try first
94 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
95 as directories rather than symlinks because we can do follow link on them.
99 Add config option to enable XATTR (extended attribute) support, mapping
100 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
101 minor fixes pointed out by the Stanford SWAT checker (mostly missing
102 or out of order NULL pointer checks in little used error paths).
106 Add new mount parm to control whether mode check (generic_permission) is done
107 on the client. If Unix extensions are enabled and the uids on the client
108 and server do not match, client permission checks are meaningless on
109 server uids that do not exist on the client (this does not affect the
110 normal ACL check which occurs on the server). Fix default uid
111 on mknod to match create and mkdir. Add optional mount parm to allow
112 override of the default uid behavior (in which the server sets the uid
113 and gid of newly created files). Normally for network filesystem mounts
114 user want the server to set the uid/gid on newly created files (rather than
115 using uid of the client processes you would in a local filesystem).
119 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
120 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
121 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
122 (block/char/fifo) properly. Remove spurious mount warning log entry when
123 credentials passed as mount argument. Set major/minor device number in
124 inode for block and char devices when unix extensions enabled.
128 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
129 amounts of return data. Properly limit requests to MAX_REQ (50
130 is the usual maximum active multiplex SMB/CIFS requests per server).
131 Do not kill cifsd (and thus hurt the other SMB session) when more than one
132 session to the same server (but with different userids) exists and one
133 of the two user's smb sessions is being removed while leaving the other.
134 Do not loop reconnecting in cifsd demultiplex thread when admin
135 kills the thread without going through unmount.
139 Do not rename hardlinked files (since that should be a noop). Flush
140 cached write behind data when reopening a file after session abend,
141 except when already in write. Grab per socket sem during reconnect
142 to avoid oops in sendmsg if overlapping with reconnect. Do not
143 reset cached inode file size on readdir for files open for write on
149 Update number of blocks in file so du command is happier (in Linux a fake
150 blocksize of 512 is required for calculating number of blocks in inode).
151 Fix prepare write of partial pages to read in data from server if possible.
152 Fix race on tcpStatus field between unmount and reconnection code, causing
153 cifsd process sometimes to hang around forever. Improve out of memory
154 checks in cifs_filldir
158 Fix incorrect file size in file handle based setattr on big endian hardware.
159 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
160 and closing file structs in writepage/partialpagewrite. Add statistics
161 for each mounted share (new menuconfig option). Fix endianness problem in
162 volume information displayed in /proc/fs/cifs/DebugData (only affects
163 affects big endian architectures). Prevent renames while constructing
164 path names for open, mkdir and rmdir.
168 Change to mempools for alloc smb request buffers and multiplex structs
169 to better handle low memory problems (and potential deadlocks).
173 Fix incomplete listings of large directories on Samba servers when Unix
174 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
175 rename deadlock when writing out dirty pages at same time.
179 Fix open of files in which O_CREATE can cause the mode to change in
180 some cases. Fix case in which retry of write overlaps file close.
181 Fix PPC64 build error. Reduce excessive stack usage in smb password
182 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
186 Fixes for large file copy, signal handling, socket retry, buffer
187 allocation and low memory situations.
191 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
192 also now allowing support for specifying client netbiosname. NT4 support added.
196 Fix reconnection (and certain failed mounts) to properly wake up the
197 blocked users thread so it does not seem hung (in some cases was blocked
198 until the cifs receive timeout expired). Fix spurious error logging
199 to kernel log when application with open network files killed.
203 Fix /proc/fs module unload warning message (that could be logged
204 to the kernel log). Fix intermittent failure in connectathon
205 test7 (hardlink count not immediately refreshed in case in which
206 inode metadata can be incorrectly kept cached when time near zero)
210 Allow file_mode and dir_mode (specified at mount time) to be enforced
211 locally (the server already enforced its own ACLs too) for servers
212 that do not report the correct mode (do not support the
213 CIFS Unix Extensions).
217 Fix some small memory leaks in some unmount error paths. Fix major leak
218 of cache pages in readpages causing multiple read oriented stress
219 testcases (including fsx, and even large file copy) to fail over time.
223 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
224 This allows files that differ only in case and improves performance of file
225 creation and file open to such servers. Fix semaphore conflict which causes
226 slow delete of open file to Samba (which unfortunately can cause an oplock
227 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
231 fixes to cifs_readpages for fsx test case
235 Fix caching data integrity bug when extending file size especially when no
236 oplock on file. Fix spurious logging of valid already parsed mount options
237 that are parsed outside of the cifs vfs such as nosuid.
242 Connect to server when port number override not specified, and tcp port
243 unitialized. Reset search to restart at correct file when kernel routine
244 filldir returns error during large directory searches (readdir).
248 Fix caching problem when files opened by multiple clients in which
249 page cache could contain stale data, and write through did
250 not occur often enough while file was still open when read ahead
251 (read oplock) not allowed. Treat "sep=" when first mount option
252 as an overrride of comma as the default separator between mount
257 Allow passwords longer than 16 bytes. Allow null password string.
261 Gracefully clean up failed mounts when attempting to mount to servers such as
262 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
263 embedded commas in mount parsing of passwords.
267 Invalidate local inode cached pages on oplock break and when last file
268 instance is closed so that the client does not continue using stale local
269 copy rather than later modified server copy of file. Do not reconnect
270 when server drops the tcp session prematurely before negotiate
271 protocol response. Fix oops in roepen_file when dentry freed. Allow
272 the support for CIFS Unix Extensions to be disabled via proc interface.
276 Fix hang in commit_write during reconnection of open files under heavy load.
277 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
278 which also fixes any possible races when cifs signatures are enabled in SMBs
279 being sent out of signature sequence number order.
283 Fix byte range locking bug (endian problem) causing bad offset and
288 Fix oops (in send_sig) caused by CIFS unmount code trying to
289 wake up the demultiplex thread after it had exited. Do not log
290 error on harmless oplock release of closed handle.
294 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
295 Fix problem reconnecting secondary mounts to same server after session
296 failure. Fix invalid dentry - race in mkdir when directory gets created
297 by another client between the lookup and mkdir.
301 Fix to list processing in reopen_files. Fix reconnection when server hung
302 but tcpip session still alive. Set proper timeout on socket read.
306 Add missing mount options including iocharset. SMP fixes in write and open.
307 Fix errors in reconnecting after TCP session failure. Fix module unloading
308 of default nls codepage
312 Active smb transactions should never go negative (fix double FreeXid). Fix
313 list processing in file routines. Check return code on kmalloc in open.
314 Fix spinlock usage for SMP.
318 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
319 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
320 on create hard link when server does not support them.
324 Fix scheduling while atomic error in getting inode info on newly created file.
325 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
329 Fix oops on write to dead tcp session. Remove error log write for case when file open
330 O_CREAT but not O_EXCL
334 Fix non-POSIX behavior on rename of open file and delete of open file by taking
335 advantage of trans2 SetFileInfo rename facility if available on target server.
336 Retry on ENOSPC and EAGAIN socket errors.
340 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
341 allocation size miscalculation. After oplock token lost do not read through
346 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
350 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
351 during auto reconnection to server after server recovered from failure.
355 Finish support for Linux 2.5 open/create changes, which removes the
356 redundant NTCreate/QPathInfo/close that was sent during file create.
357 Enable oplock by default. Enable packet signing by default (needed to
358 access many recent Windows servers)
362 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
363 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
364 we will choose a cifs user session (smb uid) that better matches the local
365 uid if a) the mount uid does not match the current uid and b) we have another
366 session to the same server (ip address) for a different mount which
367 matches the current local uid.
371 Add support for mknod of block or character devices. Fix oplock
372 code (distributed caching) to properly send response to oplock
377 Finish up CIFS packet digital signing for the default
378 NTLM security case. This should help Windows 2003
379 network interoperability since it is common for
380 packet signing to be required now. Fix statfs (stat -f)
381 which recently started returning errors due to
382 invalid value (-1 instead of 0) being set in the
383 struct kstatfs f_ffiles field.
387 Fix oops on stopping oplock thread when removing cifs when
392 Fix mount options for ro (readonly), uid, gid and file and directory mode.
396 Fix errors displayed on failed mounts to be more understandable.
397 Fixed various incorrect or misleading smb to posix error code mappings.
401 Fix display of NTFS DFS junctions to display as symlinks.
402 They are the network equivalent. Fix oops in
403 cifs_partialpagewrite caused by missing spinlock protection
404 of openfile linked list. Allow writebehind caching errors to
405 be returned to the application at file close.
409 Clean up options displayed in /proc/mounts by show_options to
410 be more consistent with other filesystems.
414 Fix delete of readonly file to Windows servers. Reflect
415 presence or absence of read only dos attribute in mode
416 bits for servers that do not support CIFS Unix extensions.
417 Fix shortened results on readdir of large directories to
418 servers supporting CIFS Unix extensions (caused by
419 incorrect resume key).
423 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
427 unload nls if mount fails.
431 Add resume key support to search (readdir) code to workaround
432 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
433 allows disabling caching of attribute information for
438 Add more oplock handling (distributed caching code). Remove
439 dead code. Remove excessive stack space utilization from
444 Fix oops in get dfs referral (triggered when null path sent in to
445 mount). Add support for overriding rsize at mount time.
449 Fix buffer overrun in readdir which caused intermittent kernel oopses.
450 Fix writepage code to release kmap on write data. Allow "-ip=" new
451 mount option to be passed in on parameter distinct from the first part
452 (server name portion of) the UNC name. Allow override of the
453 tcp port of the target server via new mount option "-port="
457 Fix search handle leak on rewind. Fix setuid and gid so that they are
458 reflected in the local inode immediately. Cleanup of whitespace
459 to make 2.4 and 2.5 versions more consistent.
464 Fix signal sending so that captive thread (cifsd) exits on umount
465 (which was causing the warning in kmem_cache_free of the request buffers
466 at rmmod time). This had broken as a sideeffect of the recent global
467 kernel change to daemonize. Fix memory leak in readdir code which
468 showed up in "ls -R" (and applications that did search rewinding).
472 Reconnect tids and fids after session reconnection (still do not
473 reconnect byte range locks though). Fix problem caching
474 lookup information for directory inodes, improving performance,
475 especially in deep directory trees. Fix various build warnings.
479 Finish fixes to commit write for caching/readahead consistency. fsx
480 now works to Samba servers. Fix oops caused when readahead
481 was interrupted by a signal.
485 Fix data corruption (in partial page after truncate) that caused fsx to
486 fail to Windows servers. Cleaned up some extraneous error logging in
487 common error paths. Add generic sendfile support.
491 Fix memory leak in AllocMidQEntry.
492 Finish reconnection logic, so connection with server can be dropped
493 (or server rebooted) and the cifs client will reconnect.
497 Fix temporary socket leak when bad userid or password specified
498 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
499 over 16K to allow negotiation of up to Samba and Windows server default read
500 sizes. Add support for readpages
504 Fix oops when username not passed in on mount. Extensive fixes and improvements
505 to error logging (strip redundant newlines, change debug macros to ensure newline
506 passed in and to be more consistent). Fix writepage wrong file handle problem,
507 a readonly file handle could be incorrectly used to attempt to write out
508 file updates through the page cache to multiply open files. This could cause
509 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
510 shares to the same Windows server when using different usernames
511 (doing this to Samba servers worked but Windows was rejecting it) - now it is
512 possible to use different userids when connecting to the same server from a
513 Linux client. Fix oops when treeDisconnect called during unmount on
514 previously freed socket.
518 Fix oops in readpages caused by not setting address space operations in inode in
523 Includes support for deleting of open files and renaming over existing files (per POSIX
524 requirement). Add readlink support for Windows junction points (directory symlinks).
528 Changed read and write to go through pagecache. Added additional address space operations.
529 Memory mapped operations now working.
533 Added writepage code for additional memory mapping support. Fixed leak in xids causing
534 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
535 every stat call. Additional formatting cleanup.
539 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
543 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
544 Also included a modified version of his fix to protect global list manipulation of
545 the smb session and tree connection and mid related global variables.
549 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
550 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
551 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
555 More stylistic updates to better match kernel style. Add additional statistics
556 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
557 and CIFS Packet Signing enablement.
561 Replace call to sleep_on with safer wait_on_event.
562 Make stylistic changes to better match kernel style recommendations.
563 Remove most typedef usage (except for the PDUs themselves).
567 Update mount so the -unc mount option is no longer required (the ip address can be specified
568 in a UNC style device name. Implementation of readpage/writepage started.
572 Fix intermittent problem with incorrect smb header checking on badly
573 fragmented tcp responses
577 Fixes to setting of allocation size and file size.
581 Various 2.5.38 fixes. Now works on 2.5.38
585 Prepare for 2.5 kernel merge. Remove ifdefs.
589 Socket buffer management fixes. Fix dual free.
593 Various big endian fixes for hardlinks and symlinks and also for dfs.
597 Various big endian fixes for servers with Unix extensions such as Samba
601 Various FindNext fixes for incorrect filenames on large directory searches on big endian
602 clients. basic posix file i/o tests now work on big endian machines, not just le
606 SessionSetup and NegotiateProtocol now work from Big Endian machines.
607 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
608 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
612 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
613 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
617 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
618 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
619 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
620 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
624 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
625 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
629 Rewrote much of connection and mount/unmount logic to handle bugs with
630 multiple uses to same share, multiple users to same server etc.
634 Fixed major problem with dentry corruption (missing call to dput)
638 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
639 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
640 although corresponding function not fully implemented in the vfs yet
644 Fixed dentry caching bug, misc. cleanup
648 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
649 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
650 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
654 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
655 and tested against Samba 2.2.5
660 1) Fixed lockrange to be correct (it was one byte too short)
662 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
663 show range as locked when there is a conflict with an existing lock.
665 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
666 in most cases. Eventually will offer optional ability to query server for the correct perms.
668 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
669 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
672 4) Fixed error logging of valid mount options
674 5) Removed logging of password field.
676 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
677 and cleaned them up and made them more consistent with other cifs functions.
679 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
680 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
681 nor is the symlink support using the Unix extensions
683 8) Started adding the readlink and follow_link code
projects / linux-2.6 / blob