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