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 Fix updates of DOS attributes and time fields so that files on NT4 servers
6 do not get marked delete on close. Display sizes of cifs buffer pools in
7 cifs stats. Fix oops in unmount when cifsd thread being killed by
8 shutdown. Add generic readv/writev and aio support. Report inode numbers
9 consistently in readdir and lookup (when serverino mount option is
10 specified use the inode number that the server reports - for both lookup
11 and readdir, otherwise by default the locally generated inode number is used
12 for inodes created in either path since servers are not always able to
13 provide unique inode numbers when exporting multiple volumes from under one
18 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
19 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
20 (mostly affects NT4 servers) by retry with handle based network operation.
21 Add new POSIX Query FS Info for returning statfs info more accurately.
22 Handle passwords with multiple commas in them.
26 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
27 Fix capabilities flags for large readx so as to allow reads larger than 64K.
31 Add module init parm for large SMB buffer size (to allow it to be changed
32 from its default of 16K) which is especially useful for large file copy
33 when mounting with the directio mount option. Fix oops after
34 returning from mount when experimental ExtendedSecurity enabled and
35 SpnegoNegotiated returning invalid error. Fix case to retry better when
36 peek returns from 1 to 3 bytes on socket which should have more data.
37 Fixed path based calls (such as cifs lookup) to handle path names
38 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
39 from Samba server to DC (Samba required dummy LM password).
43 Turn off DNOTIFY (directory change notification support) by default
44 (unless built with the experimental flag) to fix hang with KDE
45 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
46 waiting on an SMB response) in SendReceive when session dies but
47 reconnects quickly from another task. Add module init parms for
48 minimum number of large and small network buffers in the buffer pools,
49 and for the maximum number of simultaneous requests.
53 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
54 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
55 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
56 improperly zeroed buffer in CIFS Unix extensions set times call.
60 Fix internationlization problem in cifs readdir with filenames that map to
61 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
62 for readdir to netapp servers. Fix search rewind (seek into readdir to return
63 non-consecutive entries). Do not do readdir when server negotiates
64 buffer size to small to fit filename. Add support for reading POSIX ACLs from
65 the server (add also acl and noacl mount options).
69 Optionally allow using server side inode numbers, rather than client generated
70 ones by specifying mount option "serverino" - this is required for some apps
71 to work which double check hardlinked files and have persistent inode numbers.
75 Multiple bigendian fixes. On little endian systems (for reconnect after
76 network failure) fix tcp session reconnect code so we do not try first
77 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
78 as directories rather than symlinks because we can do follow link on them.
82 Add config option to enable XATTR (extended attribute) support, mapping
83 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
84 minor fixes pointed out by the Stanford SWAT checker (mostly missing
85 or out of order NULL pointer checks in little used error paths).
89 Add new mount parm to control whether mode check (generic_permission) is done
90 on the client. If Unix extensions are enabled and the uids on the client
91 and server do not match, client permission checks are meaningless on
92 server uids that do not exist on the client (this does not affect the
93 normal ACL check which occurs on the server). Fix default uid
94 on mknod to match create and mkdir. Add optional mount parm to allow
95 override of the default uid behavior (in which the server sets the uid
96 and gid of newly created files). Normally for network filesystem mounts
97 user want the server to set the uid/gid on newly created files (rather than
98 using uid of the client processes you would in a local filesystem).
102 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
103 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
104 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
105 (block/char/fifo) properly. Remove spurious mount warning log entry when
106 credentials passed as mount argument. Set major/minor device number in
107 inode for block and char devices when unix extensions enabled.
111 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
112 amounts of return data. Properly limit requests to MAX_REQ (50
113 is the usual maximum active multiplex SMB/CIFS requests per server).
114 Do not kill cifsd (and thus hurt the other SMB session) when more than one
115 session to the same server (but with different userids) exists and one
116 of the two user's smb sessions is being removed while leaving the other.
117 Do not loop reconnecting in cifsd demultiplex thread when admin
118 kills the thread without going through unmount.
122 Do not rename hardlinked files (since that should be a noop). Flush
123 cached write behind data when reopening a file after session abend,
124 except when already in write. Grab per socket sem during reconnect
125 to avoid oops in sendmsg if overlapping with reconnect. Do not
126 reset cached inode file size on readdir for files open for write on
132 Update number of blocks in file so du command is happier (in Linux a fake
133 blocksize of 512 is required for calculating number of blocks in inode).
134 Fix prepare write of partial pages to read in data from server if possible.
135 Fix race on tcpStatus field between unmount and reconnection code, causing
136 cifsd process sometimes to hang around forever. Improve out of memory
137 checks in cifs_filldir
141 Fix incorrect file size in file handle based setattr on big endian hardware.
142 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
143 and closing file structs in writepage/partialpagewrite. Add statistics
144 for each mounted share (new menuconfig option). Fix endianness problem in
145 volume information displayed in /proc/fs/cifs/DebugData (only affects
146 affects big endian architectures). Prevent renames while constructing
147 path names for open, mkdir and rmdir.
151 Change to mempools for alloc smb request buffers and multiplex structs
152 to better handle low memory problems (and potential deadlocks).
156 Fix incomplete listings of large directories on Samba servers when Unix
157 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
158 rename deadlock when writing out dirty pages at same time.
162 Fix open of files in which O_CREATE can cause the mode to change in
163 some cases. Fix case in which retry of write overlaps file close.
164 Fix PPC64 build error. Reduce excessive stack usage in smb password
165 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
169 Fixes for large file copy, signal handling, socket retry, buffer
170 allocation and low memory situations.
174 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
175 also now allowing support for specifying client netbiosname. NT4 support added.
179 Fix reconnection (and certain failed mounts) to properly wake up the
180 blocked users thread so it does not seem hung (in some cases was blocked
181 until the cifs receive timeout expired). Fix spurious error logging
182 to kernel log when application with open network files killed.
186 Fix /proc/fs module unload warning message (that could be logged
187 to the kernel log). Fix intermittent failure in connectathon
188 test7 (hardlink count not immediately refreshed in case in which
189 inode metadata can be incorrectly kept cached when time near zero)
193 Allow file_mode and dir_mode (specified at mount time) to be enforced
194 locally (the server already enforced its own ACLs too) for servers
195 that do not report the correct mode (do not support the
196 CIFS Unix Extensions).
200 Fix some small memory leaks in some unmount error paths. Fix major leak
201 of cache pages in readpages causing multiple read oriented stress
202 testcases (including fsx, and even large file copy) to fail over time.
206 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
207 This allows files that differ only in case and improves performance of file
208 creation and file open to such servers. Fix semaphore conflict which causes
209 slow delete of open file to Samba (which unfortunately can cause an oplock
210 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
214 fixes to cifs_readpages for fsx test case
218 Fix caching data integrity bug when extending file size especially when no
219 oplock on file. Fix spurious logging of valid already parsed mount options
220 that are parsed outside of the cifs vfs such as nosuid.
225 Connect to server when port number override not specified, and tcp port
226 unitialized. Reset search to restart at correct file when kernel routine
227 filldir returns error during large directory searches (readdir).
231 Fix caching problem when files opened by multiple clients in which
232 page cache could contain stale data, and write through did
233 not occur often enough while file was still open when read ahead
234 (read oplock) not allowed. Treat "sep=" when first mount option
235 as an overrride of comma as the default separator between mount
240 Allow passwords longer than 16 bytes. Allow null password string.
244 Gracefully clean up failed mounts when attempting to mount to servers such as
245 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
246 embedded commas in mount parsing of passwords.
250 Invalidate local inode cached pages on oplock break and when last file
251 instance is closed so that the client does not continue using stale local
252 copy rather than later modified server copy of file. Do not reconnect
253 when server drops the tcp session prematurely before negotiate
254 protocol response. Fix oops in roepen_file when dentry freed. Allow
255 the support for CIFS Unix Extensions to be disabled via proc interface.
259 Fix hang in commit_write during reconnection of open files under heavy load.
260 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
261 which also fixes any possible races when cifs signatures are enabled in SMBs
262 being sent out of signature sequence number order.
266 Fix byte range locking bug (endian problem) causing bad offset and
271 Fix oops (in send_sig) caused by CIFS unmount code trying to
272 wake up the demultiplex thread after it had exited. Do not log
273 error on harmless oplock release of closed handle.
277 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
278 Fix problem reconnecting secondary mounts to same server after session
279 failure. Fix invalid dentry - race in mkdir when directory gets created
280 by another client between the lookup and mkdir.
284 Fix to list processing in reopen_files. Fix reconnection when server hung
285 but tcpip session still alive. Set proper timeout on socket read.
289 Add missing mount options including iocharset. SMP fixes in write and open.
290 Fix errors in reconnecting after TCP session failure. Fix module unloading
291 of default nls codepage
295 Active smb transactions should never go negative (fix double FreeXid). Fix
296 list processing in file routines. Check return code on kmalloc in open.
297 Fix spinlock usage for SMP.
301 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
302 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
303 on create hard link when server does not support them.
307 Fix scheduling while atomic error in getting inode info on newly created file.
308 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
312 Fix oops on write to dead tcp session. Remove error log write for case when file open
313 O_CREAT but not O_EXCL
317 Fix non-POSIX behavior on rename of open file and delete of open file by taking
318 advantage of trans2 SetFileInfo rename facility if available on target server.
319 Retry on ENOSPC and EAGAIN socket errors.
323 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
324 allocation size miscalculation. After oplock token lost do not read through
329 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
333 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
334 during auto reconnection to server after server recovered from failure.
338 Finish support for Linux 2.5 open/create changes, which removes the
339 redundant NTCreate/QPathInfo/close that was sent during file create.
340 Enable oplock by default. Enable packet signing by default (needed to
341 access many recent Windows servers)
345 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
346 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
347 we will choose a cifs user session (smb uid) that better matches the local
348 uid if a) the mount uid does not match the current uid and b) we have another
349 session to the same server (ip address) for a different mount which
350 matches the current local uid.
354 Add support for mknod of block or character devices. Fix oplock
355 code (distributed caching) to properly send response to oplock
360 Finish up CIFS packet digital signing for the default
361 NTLM security case. This should help Windows 2003
362 network interoperability since it is common for
363 packet signing to be required now. Fix statfs (stat -f)
364 which recently started returning errors due to
365 invalid value (-1 instead of 0) being set in the
366 struct kstatfs f_ffiles field.
370 Fix oops on stopping oplock thread when removing cifs when
375 Fix mount options for ro (readonly), uid, gid and file and directory mode.
379 Fix errors displayed on failed mounts to be more understandable.
380 Fixed various incorrect or misleading smb to posix error code mappings.
384 Fix display of NTFS DFS junctions to display as symlinks.
385 They are the network equivalent. Fix oops in
386 cifs_partialpagewrite caused by missing spinlock protection
387 of openfile linked list. Allow writebehind caching errors to
388 be returned to the application at file close.
392 Clean up options displayed in /proc/mounts by show_options to
393 be more consistent with other filesystems.
397 Fix delete of readonly file to Windows servers. Reflect
398 presence or absence of read only dos attribute in mode
399 bits for servers that do not support CIFS Unix extensions.
400 Fix shortened results on readdir of large directories to
401 servers supporting CIFS Unix extensions (caused by
402 incorrect resume key).
406 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
410 unload nls if mount fails.
414 Add resume key support to search (readdir) code to workaround
415 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
416 allows disabling caching of attribute information for
421 Add more oplock handling (distributed caching code). Remove
422 dead code. Remove excessive stack space utilization from
427 Fix oops in get dfs referral (triggered when null path sent in to
428 mount). Add support for overriding rsize at mount time.
432 Fix buffer overrun in readdir which caused intermittent kernel oopses.
433 Fix writepage code to release kmap on write data. Allow "-ip=" new
434 mount option to be passed in on parameter distinct from the first part
435 (server name portion of) the UNC name. Allow override of the
436 tcp port of the target server via new mount option "-port="
440 Fix search handle leak on rewind. Fix setuid and gid so that they are
441 reflected in the local inode immediately. Cleanup of whitespace
442 to make 2.4 and 2.5 versions more consistent.
447 Fix signal sending so that captive thread (cifsd) exits on umount
448 (which was causing the warning in kmem_cache_free of the request buffers
449 at rmmod time). This had broken as a sideeffect of the recent global
450 kernel change to daemonize. Fix memory leak in readdir code which
451 showed up in "ls -R" (and applications that did search rewinding).
455 Reconnect tids and fids after session reconnection (still do not
456 reconnect byte range locks though). Fix problem caching
457 lookup information for directory inodes, improving performance,
458 especially in deep directory trees. Fix various build warnings.
462 Finish fixes to commit write for caching/readahead consistency. fsx
463 now works to Samba servers. Fix oops caused when readahead
464 was interrupted by a signal.
468 Fix data corruption (in partial page after truncate) that caused fsx to
469 fail to Windows servers. Cleaned up some extraneous error logging in
470 common error paths. Add generic sendfile support.
474 Fix memory leak in AllocMidQEntry.
475 Finish reconnection logic, so connection with server can be dropped
476 (or server rebooted) and the cifs client will reconnect.
480 Fix temporary socket leak when bad userid or password specified
481 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
482 over 16K to allow negotiation of up to Samba and Windows server default read
483 sizes. Add support for readpages
487 Fix oops when username not passed in on mount. Extensive fixes and improvements
488 to error logging (strip redundant newlines, change debug macros to ensure newline
489 passed in and to be more consistent). Fix writepage wrong file handle problem,
490 a readonly file handle could be incorrectly used to attempt to write out
491 file updates through the page cache to multiply open files. This could cause
492 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
493 shares to the same Windows server when using different usernames
494 (doing this to Samba servers worked but Windows was rejecting it) - now it is
495 possible to use different userids when connecting to the same server from a
496 Linux client. Fix oops when treeDisconnect called during unmount on
497 previously freed socket.
501 Fix oops in readpages caused by not setting address space operations in inode in
506 Includes support for deleting of open files and renaming over existing files (per POSIX
507 requirement). Add readlink support for Windows junction points (directory symlinks).
511 Changed read and write to go through pagecache. Added additional address space operations.
512 Memory mapped operations now working.
516 Added writepage code for additional memory mapping support. Fixed leak in xids causing
517 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
518 every stat call. Additional formatting cleanup.
522 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
526 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
527 Also included a modified version of his fix to protect global list manipulation of
528 the smb session and tree connection and mid related global variables.
532 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
533 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
534 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
538 More stylistic updates to better match kernel style. Add additional statistics
539 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
540 and CIFS Packet Signing enablement.
544 Replace call to sleep_on with safer wait_on_event.
545 Make stylistic changes to better match kernel style recommendations.
546 Remove most typedef usage (except for the PDUs themselves).
550 Update mount so the -unc mount option is no longer required (the ip address can be specified
551 in a UNC style device name. Implementation of readpage/writepage started.
555 Fix intermittent problem with incorrect smb header checking on badly
556 fragmented tcp responses
560 Fixes to setting of allocation size and file size.
564 Various 2.5.38 fixes. Now works on 2.5.38
568 Prepare for 2.5 kernel merge. Remove ifdefs.
572 Socket buffer management fixes. Fix dual free.
576 Various big endian fixes for hardlinks and symlinks and also for dfs.
580 Various big endian fixes for servers with Unix extensions such as Samba
584 Various FindNext fixes for incorrect filenames on large directory searches on big endian
585 clients. basic posix file i/o tests now work on big endian machines, not just le
589 SessionSetup and NegotiateProtocol now work from Big Endian machines.
590 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
591 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
595 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
596 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
600 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
601 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
602 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
603 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
607 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
608 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
612 Rewrote much of connection and mount/unmount logic to handle bugs with
613 multiple uses to same share, multiple users to same server etc.
617 Fixed major problem with dentry corruption (missing call to dput)
621 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
622 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
623 although corresponding function not fully implemented in the vfs yet
627 Fixed dentry caching bug, misc. cleanup
631 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
632 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
633 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
637 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
638 and tested against Samba 2.2.5
643 1) Fixed lockrange to be correct (it was one byte too short)
645 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
646 show range as locked when there is a conflict with an existing lock.
648 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
649 in most cases. Eventually will offer optional ability to query server for the correct perms.
651 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
652 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
655 4) Fixed error logging of valid mount options
657 5) Removed logging of password field.
659 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
660 and cleaned them up and made them more consistent with other cifs functions.
662 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
663 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
664 nor is the symlink support using the Unix extensions
666 8) Started adding the readlink and follow_link code
projects / sojka / nv-tegra / linux-3.10.git / blob