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).
18 Fix updates of DOS attributes and time fields so that files on NT4 servers
19 do not get marked delete on close. Display sizes of cifs buffer pools in
20 cifs stats. Fix oops in unmount when cifsd thread being killed by
21 shutdown. Add generic readv/writev and aio support. Report inode numbers
22 consistently in readdir and lookup (when serverino mount option is
23 specified use the inode number that the server reports - for both lookup
24 and readdir, otherwise by default the locally generated inode number is used
25 for inodes created in either path since servers are not always able to
26 provide unique inode numbers when exporting multiple volumes from under one
31 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
32 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
33 (mostly affects NT4 servers) by retry with handle based network operation.
34 Add new POSIX Query FS Info for returning statfs info more accurately.
35 Handle passwords with multiple commas in them.
39 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
40 Fix capabilities flags for large readx so as to allow reads larger than 64K.
44 Add module init parm for large SMB buffer size (to allow it to be changed
45 from its default of 16K) which is especially useful for large file copy
46 when mounting with the directio mount option. Fix oops after
47 returning from mount when experimental ExtendedSecurity enabled and
48 SpnegoNegotiated returning invalid error. Fix case to retry better when
49 peek returns from 1 to 3 bytes on socket which should have more data.
50 Fixed path based calls (such as cifs lookup) to handle path names
51 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
52 from Samba server to DC (Samba required dummy LM password).
56 Turn off DNOTIFY (directory change notification support) by default
57 (unless built with the experimental flag) to fix hang with KDE
58 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
59 waiting on an SMB response) in SendReceive when session dies but
60 reconnects quickly from another task. Add module init parms for
61 minimum number of large and small network buffers in the buffer pools,
62 and for the maximum number of simultaneous requests.
66 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
67 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
68 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
69 improperly zeroed buffer in CIFS Unix extensions set times call.
73 Fix internationlization problem in cifs readdir with filenames that map to
74 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
75 for readdir to netapp servers. Fix search rewind (seek into readdir to return
76 non-consecutive entries). Do not do readdir when server negotiates
77 buffer size to small to fit filename. Add support for reading POSIX ACLs from
78 the server (add also acl and noacl mount options).
82 Optionally allow using server side inode numbers, rather than client generated
83 ones by specifying mount option "serverino" - this is required for some apps
84 to work which double check hardlinked files and have persistent inode numbers.
88 Multiple bigendian fixes. On little endian systems (for reconnect after
89 network failure) fix tcp session reconnect code so we do not try first
90 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
91 as directories rather than symlinks because we can do follow link on them.
95 Add config option to enable XATTR (extended attribute) support, mapping
96 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
97 minor fixes pointed out by the Stanford SWAT checker (mostly missing
98 or out of order NULL pointer checks in little used error paths).
102 Add new mount parm to control whether mode check (generic_permission) is done
103 on the client. If Unix extensions are enabled and the uids on the client
104 and server do not match, client permission checks are meaningless on
105 server uids that do not exist on the client (this does not affect the
106 normal ACL check which occurs on the server). Fix default uid
107 on mknod to match create and mkdir. Add optional mount parm to allow
108 override of the default uid behavior (in which the server sets the uid
109 and gid of newly created files). Normally for network filesystem mounts
110 user want the server to set the uid/gid on newly created files (rather than
111 using uid of the client processes you would in a local filesystem).
115 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
116 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
117 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
118 (block/char/fifo) properly. Remove spurious mount warning log entry when
119 credentials passed as mount argument. Set major/minor device number in
120 inode for block and char devices when unix extensions enabled.
124 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
125 amounts of return data. Properly limit requests to MAX_REQ (50
126 is the usual maximum active multiplex SMB/CIFS requests per server).
127 Do not kill cifsd (and thus hurt the other SMB session) when more than one
128 session to the same server (but with different userids) exists and one
129 of the two user's smb sessions is being removed while leaving the other.
130 Do not loop reconnecting in cifsd demultiplex thread when admin
131 kills the thread without going through unmount.
135 Do not rename hardlinked files (since that should be a noop). Flush
136 cached write behind data when reopening a file after session abend,
137 except when already in write. Grab per socket sem during reconnect
138 to avoid oops in sendmsg if overlapping with reconnect. Do not
139 reset cached inode file size on readdir for files open for write on
145 Update number of blocks in file so du command is happier (in Linux a fake
146 blocksize of 512 is required for calculating number of blocks in inode).
147 Fix prepare write of partial pages to read in data from server if possible.
148 Fix race on tcpStatus field between unmount and reconnection code, causing
149 cifsd process sometimes to hang around forever. Improve out of memory
150 checks in cifs_filldir
154 Fix incorrect file size in file handle based setattr on big endian hardware.
155 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
156 and closing file structs in writepage/partialpagewrite. Add statistics
157 for each mounted share (new menuconfig option). Fix endianness problem in
158 volume information displayed in /proc/fs/cifs/DebugData (only affects
159 affects big endian architectures). Prevent renames while constructing
160 path names for open, mkdir and rmdir.
164 Change to mempools for alloc smb request buffers and multiplex structs
165 to better handle low memory problems (and potential deadlocks).
169 Fix incomplete listings of large directories on Samba servers when Unix
170 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
171 rename deadlock when writing out dirty pages at same time.
175 Fix open of files in which O_CREATE can cause the mode to change in
176 some cases. Fix case in which retry of write overlaps file close.
177 Fix PPC64 build error. Reduce excessive stack usage in smb password
178 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
182 Fixes for large file copy, signal handling, socket retry, buffer
183 allocation and low memory situations.
187 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
188 also now allowing support for specifying client netbiosname. NT4 support added.
192 Fix reconnection (and certain failed mounts) to properly wake up the
193 blocked users thread so it does not seem hung (in some cases was blocked
194 until the cifs receive timeout expired). Fix spurious error logging
195 to kernel log when application with open network files killed.
199 Fix /proc/fs module unload warning message (that could be logged
200 to the kernel log). Fix intermittent failure in connectathon
201 test7 (hardlink count not immediately refreshed in case in which
202 inode metadata can be incorrectly kept cached when time near zero)
206 Allow file_mode and dir_mode (specified at mount time) to be enforced
207 locally (the server already enforced its own ACLs too) for servers
208 that do not report the correct mode (do not support the
209 CIFS Unix Extensions).
213 Fix some small memory leaks in some unmount error paths. Fix major leak
214 of cache pages in readpages causing multiple read oriented stress
215 testcases (including fsx, and even large file copy) to fail over time.
219 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
220 This allows files that differ only in case and improves performance of file
221 creation and file open to such servers. Fix semaphore conflict which causes
222 slow delete of open file to Samba (which unfortunately can cause an oplock
223 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
227 fixes to cifs_readpages for fsx test case
231 Fix caching data integrity bug when extending file size especially when no
232 oplock on file. Fix spurious logging of valid already parsed mount options
233 that are parsed outside of the cifs vfs such as nosuid.
238 Connect to server when port number override not specified, and tcp port
239 unitialized. Reset search to restart at correct file when kernel routine
240 filldir returns error during large directory searches (readdir).
244 Fix caching problem when files opened by multiple clients in which
245 page cache could contain stale data, and write through did
246 not occur often enough while file was still open when read ahead
247 (read oplock) not allowed. Treat "sep=" when first mount option
248 as an overrride of comma as the default separator between mount
253 Allow passwords longer than 16 bytes. Allow null password string.
257 Gracefully clean up failed mounts when attempting to mount to servers such as
258 Windows 98 that terminate tcp sessions during prototocol negotiation. Handle
259 embedded commas in mount parsing of passwords.
263 Invalidate local inode cached pages on oplock break and when last file
264 instance is closed so that the client does not continue using stale local
265 copy rather than later modified server copy of file. Do not reconnect
266 when server drops the tcp session prematurely before negotiate
267 protocol response. Fix oops in roepen_file when dentry freed. Allow
268 the support for CIFS Unix Extensions to be disabled via proc interface.
272 Fix hang in commit_write during reconnection of open files under heavy load.
273 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
274 which also fixes any possible races when cifs signatures are enabled in SMBs
275 being sent out of signature sequence number order.
279 Fix byte range locking bug (endian problem) causing bad offset and
284 Fix oops (in send_sig) caused by CIFS unmount code trying to
285 wake up the demultiplex thread after it had exited. Do not log
286 error on harmless oplock release of closed handle.
290 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
291 Fix problem reconnecting secondary mounts to same server after session
292 failure. Fix invalid dentry - race in mkdir when directory gets created
293 by another client between the lookup and mkdir.
297 Fix to list processing in reopen_files. Fix reconnection when server hung
298 but tcpip session still alive. Set proper timeout on socket read.
302 Add missing mount options including iocharset. SMP fixes in write and open.
303 Fix errors in reconnecting after TCP session failure. Fix module unloading
304 of default nls codepage
308 Active smb transactions should never go negative (fix double FreeXid). Fix
309 list processing in file routines. Check return code on kmalloc in open.
310 Fix spinlock usage for SMP.
314 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
315 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
316 on create hard link when server does not support them.
320 Fix scheduling while atomic error in getting inode info on newly created file.
321 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
325 Fix oops on write to dead tcp session. Remove error log write for case when file open
326 O_CREAT but not O_EXCL
330 Fix non-POSIX behavior on rename of open file and delete of open file by taking
331 advantage of trans2 SetFileInfo rename facility if available on target server.
332 Retry on ENOSPC and EAGAIN socket errors.
336 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
337 allocation size miscalculation. After oplock token lost do not read through
342 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
346 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
347 during auto reconnection to server after server recovered from failure.
351 Finish support for Linux 2.5 open/create changes, which removes the
352 redundant NTCreate/QPathInfo/close that was sent during file create.
353 Enable oplock by default. Enable packet signing by default (needed to
354 access many recent Windows servers)
358 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
359 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
360 we will choose a cifs user session (smb uid) that better matches the local
361 uid if a) the mount uid does not match the current uid and b) we have another
362 session to the same server (ip address) for a different mount which
363 matches the current local uid.
367 Add support for mknod of block or character devices. Fix oplock
368 code (distributed caching) to properly send response to oplock
373 Finish up CIFS packet digital signing for the default
374 NTLM security case. This should help Windows 2003
375 network interoperability since it is common for
376 packet signing to be required now. Fix statfs (stat -f)
377 which recently started returning errors due to
378 invalid value (-1 instead of 0) being set in the
379 struct kstatfs f_ffiles field.
383 Fix oops on stopping oplock thread when removing cifs when
388 Fix mount options for ro (readonly), uid, gid and file and directory mode.
392 Fix errors displayed on failed mounts to be more understandable.
393 Fixed various incorrect or misleading smb to posix error code mappings.
397 Fix display of NTFS DFS junctions to display as symlinks.
398 They are the network equivalent. Fix oops in
399 cifs_partialpagewrite caused by missing spinlock protection
400 of openfile linked list. Allow writebehind caching errors to
401 be returned to the application at file close.
405 Clean up options displayed in /proc/mounts by show_options to
406 be more consistent with other filesystems.
410 Fix delete of readonly file to Windows servers. Reflect
411 presence or absence of read only dos attribute in mode
412 bits for servers that do not support CIFS Unix extensions.
413 Fix shortened results on readdir of large directories to
414 servers supporting CIFS Unix extensions (caused by
415 incorrect resume key).
419 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
423 unload nls if mount fails.
427 Add resume key support to search (readdir) code to workaround
428 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
429 allows disabling caching of attribute information for
434 Add more oplock handling (distributed caching code). Remove
435 dead code. Remove excessive stack space utilization from
440 Fix oops in get dfs referral (triggered when null path sent in to
441 mount). Add support for overriding rsize at mount time.
445 Fix buffer overrun in readdir which caused intermittent kernel oopses.
446 Fix writepage code to release kmap on write data. Allow "-ip=" new
447 mount option to be passed in on parameter distinct from the first part
448 (server name portion of) the UNC name. Allow override of the
449 tcp port of the target server via new mount option "-port="
453 Fix search handle leak on rewind. Fix setuid and gid so that they are
454 reflected in the local inode immediately. Cleanup of whitespace
455 to make 2.4 and 2.5 versions more consistent.
460 Fix signal sending so that captive thread (cifsd) exits on umount
461 (which was causing the warning in kmem_cache_free of the request buffers
462 at rmmod time). This had broken as a sideeffect of the recent global
463 kernel change to daemonize. Fix memory leak in readdir code which
464 showed up in "ls -R" (and applications that did search rewinding).
468 Reconnect tids and fids after session reconnection (still do not
469 reconnect byte range locks though). Fix problem caching
470 lookup information for directory inodes, improving performance,
471 especially in deep directory trees. Fix various build warnings.
475 Finish fixes to commit write for caching/readahead consistency. fsx
476 now works to Samba servers. Fix oops caused when readahead
477 was interrupted by a signal.
481 Fix data corruption (in partial page after truncate) that caused fsx to
482 fail to Windows servers. Cleaned up some extraneous error logging in
483 common error paths. Add generic sendfile support.
487 Fix memory leak in AllocMidQEntry.
488 Finish reconnection logic, so connection with server can be dropped
489 (or server rebooted) and the cifs client will reconnect.
493 Fix temporary socket leak when bad userid or password specified
494 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
495 over 16K to allow negotiation of up to Samba and Windows server default read
496 sizes. Add support for readpages
500 Fix oops when username not passed in on mount. Extensive fixes and improvements
501 to error logging (strip redundant newlines, change debug macros to ensure newline
502 passed in and to be more consistent). Fix writepage wrong file handle problem,
503 a readonly file handle could be incorrectly used to attempt to write out
504 file updates through the page cache to multiply open files. This could cause
505 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
506 shares to the same Windows server when using different usernames
507 (doing this to Samba servers worked but Windows was rejecting it) - now it is
508 possible to use different userids when connecting to the same server from a
509 Linux client. Fix oops when treeDisconnect called during unmount on
510 previously freed socket.
514 Fix oops in readpages caused by not setting address space operations in inode in
519 Includes support for deleting of open files and renaming over existing files (per POSIX
520 requirement). Add readlink support for Windows junction points (directory symlinks).
524 Changed read and write to go through pagecache. Added additional address space operations.
525 Memory mapped operations now working.
529 Added writepage code for additional memory mapping support. Fixed leak in xids causing
530 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
531 every stat call. Additional formatting cleanup.
535 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
539 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
540 Also included a modified version of his fix to protect global list manipulation of
541 the smb session and tree connection and mid related global variables.
545 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
546 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
547 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
551 More stylistic updates to better match kernel style. Add additional statistics
552 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
553 and CIFS Packet Signing enablement.
557 Replace call to sleep_on with safer wait_on_event.
558 Make stylistic changes to better match kernel style recommendations.
559 Remove most typedef usage (except for the PDUs themselves).
563 Update mount so the -unc mount option is no longer required (the ip address can be specified
564 in a UNC style device name. Implementation of readpage/writepage started.
568 Fix intermittent problem with incorrect smb header checking on badly
569 fragmented tcp responses
573 Fixes to setting of allocation size and file size.
577 Various 2.5.38 fixes. Now works on 2.5.38
581 Prepare for 2.5 kernel merge. Remove ifdefs.
585 Socket buffer management fixes. Fix dual free.
589 Various big endian fixes for hardlinks and symlinks and also for dfs.
593 Various big endian fixes for servers with Unix extensions such as Samba
597 Various FindNext fixes for incorrect filenames on large directory searches on big endian
598 clients. basic posix file i/o tests now work on big endian machines, not just le
602 SessionSetup and NegotiateProtocol now work from Big Endian machines.
603 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
604 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
608 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
609 files now return the correct rumber of links on fstat as they are repeatedly linked and unlinked.
613 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
614 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
615 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
616 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
620 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
621 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
625 Rewrote much of connection and mount/unmount logic to handle bugs with
626 multiple uses to same share, multiple users to same server etc.
630 Fixed major problem with dentry corruption (missing call to dput)
634 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
635 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
636 although corresponding function not fully implemented in the vfs yet
640 Fixed dentry caching bug, misc. cleanup
644 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
645 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
646 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
650 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
651 and tested against Samba 2.2.5
656 1) Fixed lockrange to be correct (it was one byte too short)
658 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
659 show range as locked when there is a conflict with an existing lock.
661 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
662 in most cases. Eventually will offer optional ability to query server for the correct perms.
664 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
665 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
668 4) Fixed error logging of valid mount options
670 5) Removed logging of password field.
672 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
673 and cleaned them up and made them more consistent with other cifs functions.
675 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
676 (with or without Unix exentions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
677 nor is the symlink support using the Unix extensions
679 8) Started adding the readlink and follow_link code
git.samba.org / sfrench / cifs-2.6.git / blob