3 Improve support for multiple security contexts to the same server. We
4 used to use the same "vcnumber" for all connections which could cause
5 the server to treat subsequent connections, especially those that
6 are authenticated as guest, as reconnections, invalidating the earlier
7 user's smb session. This fix allows cifs to mount multiple times to the
8 same server with different userids without risking invalidating earlier
9 established security contexts. fsync now sends SMB Flush operation
10 to better ensure that we wait for server to write all of the data to
11 server disk (not just write it over the network).
15 Add "forcemandatorylock" mount option to allow user to use mandatory
16 rather than posix (advisory) byte range locks, even though server would
17 support posix byte range locks. Fix query of root inode when prefixpath
18 specified and user does not have access to query information about the
19 top of the share. Fix problem in 2.6.28 resolving DFS paths to
20 Samba servers (worked to Windows). Fix rmdir so that pending search
21 (readdir) requests do not get invalid results which include the now
22 removed directory. Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
23 when using DFS. Add better file create support to servers which support
24 the CIFS POSIX protocol extensions (this adds support for new flags
25 on create, and improves semantics for write of locked ranges).
29 Various fixes to make delete of open files behavior more predictable
30 (when delete of an open file fails we mark the file as "delete-on-close"
31 in a way that more servers accept, but only if we can first rename the
32 file to a temporary name). Add experimental support for more safely
33 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
34 sends, and also let tcp autotune the socket send and receive buffers.
35 This reduces the number of EAGAIN errors returned by TCP/IP in
36 high stress workloads (and the number of retries on socket writes
37 when sending large SMBWriteX requests). Fix case in which a portion of
38 data can in some cases not get written to the file on the server before the
39 file is closed. Fix DFS parsing to properly handle path consumed field,
40 and to handle certain codepage conversions better. Fix mount and
41 umount race that can cause oops in mount or umount or reconnect.
45 Fix premature write failure on congested networks (we would give up
46 on EAGAIN from the socket too quickly on large writes).
47 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
48 Fix endian problems in acl (mode from/to cifs acl) on bigendian
49 architectures. Fix problems with preserving timestamps on copying open
50 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
51 on parent directory when server supports Unix Extensions but not POSIX
52 create. Update cifs.upcall version to handle new Kerberos sec flags
53 (this requires update of cifs.upcall program from Samba). Fix memory leak
54 on dns_upcall (resolving DFS referralls). Fix plain text password
55 authentication (requires setting SecurityFlags to 0x30030 to enable
56 lanman and plain text though). Fix writes to be at correct offset when
57 file is open with O_APPEND and file is on a directio (forcediretio) mount.
58 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
62 DFS support added (Microsoft Distributed File System client support needed
63 for referrals which enable a hierarchical name space among servers).
64 Disable temporary caching of mode bits to servers which do not support
65 storing of mode (e.g. Windows servers, when client mounts without cifsacl
66 mount option) and add new "dynperm" mount option to enable temporary caching
67 of mode (enable old behavior). Fix hang on mount caused when server crashes
68 tcp session during negotiate protocol.
72 Fix oops on second mount to server when null auth is used.
73 Enable experimental Kerberos support. Return writebehind errors on flush
74 and sync so that events like out of disk space get reported properly on
75 cached files. Fix setxattr failure to certain Samba versions. Fix mount
76 of second share to disconnected server session (autoreconnect on this).
77 Add ability to modify cifs acls for handling chmod (when mounted with
78 cifsacl flag). Fix prefixpath path separator so we can handle mounts
79 with prefixpaths longer than one directory (one path component) when
80 mounted to Windows servers. Fix slow file open when cifsacl
81 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
86 Fix memory leak in statfs when mounted to very old servers (e.g.
87 Windows 9x). Add new feature "POSIX open" which allows servers
88 which support the current POSIX Extensions to provide better semantics
89 (e.g. delete for open files opened with posix open). Take into
90 account umask on posix mkdir not just older style mkdir. Add
91 ability to mount to IPC$ share (which allows CIFS named pipes to be
92 opened, read and written as if they were files). When 1st tree
93 connect fails (e.g. due to signing negotiation failure) fix
94 leak that causes cifsd not to stop and rmmod to fail to cleanup
95 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
96 bigendian architectures. Fix possible memory corruption when
97 EAGAIN returned on kern_recvmsg. Return better error if server
98 requires packet signing but client has disabled it. When mounted
99 with cifsacl mount option - mode bits are approximated based
100 on the contents of the ACL of the file or directory. When cifs
101 mount helper is missing convert make sure that UNC name
102 has backslash (not forward slash) between ip address of server
107 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
108 done with "serverino" mount option). Add support for POSIX Unlink
109 (helps with certain sharing violation cases when server such as
110 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
111 mount option to allow disabling the CIFS Unix Extensions for just
112 that mount. Fix hang on spinlock in find_writable_file (race when
113 reopening file after session crash). Byte range unlock request to
114 windows server could unlock more bytes (on server copy of file)
115 than intended if start of unlock request is well before start of
116 a previous byte range lock that we issued.
120 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
121 address after the "ip=" mount option, at least until mount.cifs is fixed to
122 handle DNS host to ipv6 name translation). Accept override of uid or gid
123 on mount even when Unix Extensions are negotiated (it used to be ignored
124 when Unix Extensions were ignored). This allows users to override the
125 default uid and gid for files when they are certain that the uids or
126 gids on the server do not match those of the client. Make "sec=none"
127 mount override username (so that null user connection is attempted)
128 to match what documentation said. Support for very large reads, over 127K,
129 available to some newer servers (such as Samba 3.0.26 and later but
130 note that it also requires setting CIFSMaxBufSize at module install
131 time to a larger value which may hurt performance in some cases).
132 Make sign option force signing (or fail if server does not support it).
136 Fix mtime bouncing around from local idea of last write times to remote time.
137 Fix hang (in i_size_read) when simultaneous size update of same remote file
138 on smp system corrupts sequence number. Do not reread unnecessarily partial page
139 (which we are about to overwrite anyway) when writing out file opened rw.
140 When DOS attribute of file on non-Unix server's file changes on the server side
141 from read-only back to read-write, reflect this change in default file mode
142 (we had been leaving a file's mode read-only until the inode were reloaded).
143 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
144 when archive dos attribute not set and we are changing mode back to writeable
145 on server which does not support the Unix Extensions). Remove read only dos
146 attribute on chmod when adding any write permission (ie on any of
147 user/group/other (not all of user/group/other ie 0222) when
148 mounted to windows. Add support for POSIX MkDir (slight performance
149 enhancement and eliminates the network race between the mkdir and set
150 path info of the mode).
155 Fix oops in list_del during mount caused by unaligned string.
156 Fix file corruption which could occur on some large file
157 copies caused by writepages page i/o completion bug.
158 Seek to SEEK_END forces check for update of file size for non-cached
159 files. Allow file size to be updated on remote extend of locally open,
160 non-cached file. Fix reconnect to newer Samba servers (or other servers
161 which support the CIFS Unix/POSIX extensions) so that we again tell the
162 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
163 Add experimental support for new POSIX Open/Mkdir (which returns
164 stat information on the open, and allows setting the mode).
168 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
169 Allow null user to be specified on mount ("username="). Do not return
170 EINVAL on readdir when filldir fails due to overwritten blocksize
171 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
172 if rename by handle also fails, after rename by path fails, we were
173 not reporting whether the retry worked or not). Fix NTLMv2 to
174 work to Windows servers (mount with option "sec=ntlmv2").
178 Do not time out lockw calls when using posix extensions. Do not
179 time out requests if server still responding reasonably fast
180 on requests on other threads. Improve POSIX locking emulation,
181 (lock cancel now works, and unlock of merged range works even
182 to Windows servers now). Fix oops on mount to lanman servers
183 (win9x, os/2 etc.) when null password. Do not send listxattr
184 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
185 problem (instantiate inodes/dentries in right order for readdir).
189 Rewritten sessionsetup support, including support for legacy SMB
190 session setup needed for OS/2 and older servers such as Windows 95 and 98.
191 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
192 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
193 or recent levels of FindFirst unless server says it supports NT SMBs
194 (instead use legacy equivalents from LANMAN dialect). Fix to allow
195 NTLMv2 authentication support (now can use stronger password hashing
196 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
197 Allow override of global cifs security flags on mount via "sec=" option(s).
201 POSIX locking to servers which support CIFS POSIX Extensions
202 (disabled by default controlled by proc/fs/cifs/Experimental).
203 Handle conversion of long share names (especially Asian languages)
204 to Unicode during mount. Fix memory leak in sess struct on reconnect.
205 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
206 cifs open which helps rare case when setpathinfo fails or server does
211 Fix slow oplock break when mounted to different servers at the same time and
212 the tids match and we try to find matching fid on wrong server. Fix read
213 looping when signing required by server (2.6.16 kernel only). Fix readdir
214 vs. rename race which could cause each to hang. Return . and .. even
215 if server does not. Allow searches to skip first three entries and
216 begin at any location. Fix oops in find_writeable_file.
220 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
221 configure stronger authentication. Fix sfu symlinks so they can
222 be followed (not just recognized). Fix wraparound of bcc on
223 read responses when buffer size over 64K and also fix wrap of
224 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
225 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
226 on socket is returned over and over). Add POSIX (advisory) byte range
227 locking support (requires server with newest CIFS UNIX Extensions
228 to the protocol implemented). Slow down negprot slightly in port 139
229 RFC1001 case to give session_init time on buggy servers.
233 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
234 of readpages by eliminating one extra memcpy. Allow update of file size
235 from remote server even if file is open for write as long as mount is
236 directio. Recognize share mode security and send NTLM encrypted password
237 on tree connect if share mode negotiated.
241 Defer close of a file handle slightly if pending writes depend on that handle
242 (this reduces the EBADF bad file handle errors that can be logged under heavy
243 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
244 Fix SFU style symlinks and mknod needed for servers which do not support the
245 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
246 dentries so files that the client sees as deleted but that later get created
247 on the server will be recognized. Add client side permission check on setattr.
248 Timeout stuck requests better (where server has never responded or sent corrupt
253 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
254 to be smaller at first (but increasing) so large write performance performance
255 over GigE is better. Do not hang thread on illegal byte range lock response
256 from Windows (Windows can send an RFC1001 size which does not match smb size) by
257 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
258 wsize and rsize can now be larger than negotiated buffer size if server
259 supports large readx/writex, even when directio mount flag not specified.
260 Write size will in many cases now be 16K instead of 4K which greatly helps
261 file copy performance on lightly loaded networks. Fix oops in dnotify
262 when experimental config flag enabled. Make cifsFYI more granular.
266 Fix readdir caching when unlink removes file in current search buffer,
267 and this is followed by a rewind search to just before the deleted entry.
268 Do not attempt to set ctime unless atime and/or mtime change requested
269 (most servers throw it away anyway). Fix length check of received smbs
270 to be more accurate. Fix big endian problem with mapchars mount option,
271 and with a field returned by statfs.
275 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
276 For these older servers, add option for passing netbios name of server in
277 on mount (servernetbiosname). Add suspend support for power management, to
278 avoid cifsd thread preventing software suspend from working.
279 Add mount option for disabling the default behavior of sending byte range lock
280 requests to the server (necessary for certain applications which break with
281 mandatory lock behavior such as Evolution), and also mount option for
282 requesting case insensitive matching for path based requests (requesting
283 case sensitive is the default).
287 Add writepage performance improvements. Fix path name conversions
288 for long filenames on mounts which were done with "mapchars" mount option
289 specified. Ensure multiplex ids do not collide. Fix case in which
290 rmmod can oops if done soon after last unmount. Fix truncated
291 search (readdir) output when resume filename was a long filename.
292 Fix filename conversion when mapchars mount option was specified and
293 filename was a long filename.
297 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
298 Do not oops if root user kills cifs oplock kernel thread or
299 kills the cifsd thread (NB: killing the cifs kernel threads is not
300 recommended, unmount and rmmod cifs will kill them when they are
301 no longer needed). Fix readdir to ASCII servers (ie older servers
302 which do not support Unicode) and also require asterisk.
303 Fix out of memory case in which data could be written one page
304 off in the page cache.
308 Fix caching problem, in which readdir of directory containing a file
309 which was cached could cause the file's time stamp to be updated
310 without invalidating the readahead data (so we could get stale
311 file data on the client for that file even as the server copy changed).
312 Cleanup response processing so cifsd can not loop when abnormally
318 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
319 transact response for an SMB request and search entry split across two frames.
320 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
321 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
322 unless server explicitly claims to support them in CIFS Unix extensions
323 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
324 different users from the same client to the same server. Fix oops in
325 cifs_close. Add mount option for remapping reserved characters in
326 filenames (also allow recognizing files with created by SFU which have any
327 of these seven reserved characters, except backslash, to be recognized).
328 Fix invalid transact2 message (we were sometimes trying to interpret
329 oplock breaks as SMB responses). Add ioctl for checking that the
330 current uid matches the uid of the mounter (needed by umount.cifs).
331 Reduce the number of large buffer allocations in cifs response processing
332 (significantly reduces memory pressure under heavy stress with multiple
333 processes accessing the same server at the same time).
337 Fix updates of DOS attributes and time fields so that files on NT4 servers
338 do not get marked delete on close. Display sizes of cifs buffer pools in
339 cifs stats. Fix oops in unmount when cifsd thread being killed by
340 shutdown. Add generic readv/writev and aio support. Report inode numbers
341 consistently in readdir and lookup (when serverino mount option is
342 specified use the inode number that the server reports - for both lookup
343 and readdir, otherwise by default the locally generated inode number is used
344 for inodes created in either path since servers are not always able to
345 provide unique inode numbers when exporting multiple volumes from under one
350 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
351 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
352 (mostly affects NT4 servers) by retry with handle based network operation.
353 Add new POSIX Query FS Info for returning statfs info more accurately.
354 Handle passwords with multiple commas in them.
358 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
359 Fix capabilities flags for large readx so as to allow reads larger than 64K.
363 Add module init parm for large SMB buffer size (to allow it to be changed
364 from its default of 16K) which is especially useful for large file copy
365 when mounting with the directio mount option. Fix oops after
366 returning from mount when experimental ExtendedSecurity enabled and
367 SpnegoNegotiated returning invalid error. Fix case to retry better when
368 peek returns from 1 to 3 bytes on socket which should have more data.
369 Fixed path based calls (such as cifs lookup) to handle path names
370 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
371 from Samba server to DC (Samba required dummy LM password).
375 Turn off DNOTIFY (directory change notification support) by default
376 (unless built with the experimental flag) to fix hang with KDE
377 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
378 waiting on an SMB response) in SendReceive when session dies but
379 reconnects quickly from another task. Add module init parms for
380 minimum number of large and small network buffers in the buffer pools,
381 and for the maximum number of simultaneous requests.
385 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
386 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
387 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
388 improperly zeroed buffer in CIFS Unix extensions set times call.
392 Fix internationalization problem in cifs readdir with filenames that map to
393 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
394 for readdir to netapp servers. Fix search rewind (seek into readdir to return
395 non-consecutive entries). Do not do readdir when server negotiates
396 buffer size to small to fit filename. Add support for reading POSIX ACLs from
397 the server (add also acl and noacl mount options).
401 Optionally allow using server side inode numbers, rather than client generated
402 ones by specifying mount option "serverino" - this is required for some apps
403 to work which double check hardlinked files and have persistent inode numbers.
407 Multiple bigendian fixes. On little endian systems (for reconnect after
408 network failure) fix tcp session reconnect code so we do not try first
409 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
410 as directories rather than symlinks because we can do follow link on them.
414 Add config option to enable XATTR (extended attribute) support, mapping
415 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
416 minor fixes pointed out by the Stanford SWAT checker (mostly missing
417 or out of order NULL pointer checks in little used error paths).
421 Add new mount parm to control whether mode check (generic_permission) is done
422 on the client. If Unix extensions are enabled and the uids on the client
423 and server do not match, client permission checks are meaningless on
424 server uids that do not exist on the client (this does not affect the
425 normal ACL check which occurs on the server). Fix default uid
426 on mknod to match create and mkdir. Add optional mount parm to allow
427 override of the default uid behavior (in which the server sets the uid
428 and gid of newly created files). Normally for network filesystem mounts
429 user want the server to set the uid/gid on newly created files (rather than
430 using uid of the client processes you would in a local filesystem).
434 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
435 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
436 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
437 (block/char/fifo) properly. Remove spurious mount warning log entry when
438 credentials passed as mount argument. Set major/minor device number in
439 inode for block and char devices when unix extensions enabled.
443 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
444 amounts of return data. Properly limit requests to MAX_REQ (50
445 is the usual maximum active multiplex SMB/CIFS requests per server).
446 Do not kill cifsd (and thus hurt the other SMB session) when more than one
447 session to the same server (but with different userids) exists and one
448 of the two user's smb sessions is being removed while leaving the other.
449 Do not loop reconnecting in cifsd demultiplex thread when admin
450 kills the thread without going through unmount.
454 Do not rename hardlinked files (since that should be a noop). Flush
455 cached write behind data when reopening a file after session abend,
456 except when already in write. Grab per socket sem during reconnect
457 to avoid oops in sendmsg if overlapping with reconnect. Do not
458 reset cached inode file size on readdir for files open for write on
464 Update number of blocks in file so du command is happier (in Linux a fake
465 blocksize of 512 is required for calculating number of blocks in inode).
466 Fix prepare write of partial pages to read in data from server if possible.
467 Fix race on tcpStatus field between unmount and reconnection code, causing
468 cifsd process sometimes to hang around forever. Improve out of memory
469 checks in cifs_filldir
473 Fix incorrect file size in file handle based setattr on big endian hardware.
474 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
475 and closing file structs in writepage/partialpagewrite. Add statistics
476 for each mounted share (new menuconfig option). Fix endianness problem in
477 volume information displayed in /proc/fs/cifs/DebugData (only affects
478 affects big endian architectures). Prevent renames while constructing
479 path names for open, mkdir and rmdir.
483 Change to mempools for alloc smb request buffers and multiplex structs
484 to better handle low memory problems (and potential deadlocks).
488 Fix incomplete listings of large directories on Samba servers when Unix
489 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
490 rename deadlock when writing out dirty pages at same time.
494 Fix open of files in which O_CREATE can cause the mode to change in
495 some cases. Fix case in which retry of write overlaps file close.
496 Fix PPC64 build error. Reduce excessive stack usage in smb password
497 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
501 Fixes for large file copy, signal handling, socket retry, buffer
502 allocation and low memory situations.
506 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
507 also now allowing support for specifying client netbiosname. NT4 support added.
511 Fix reconnection (and certain failed mounts) to properly wake up the
512 blocked users thread so it does not seem hung (in some cases was blocked
513 until the cifs receive timeout expired). Fix spurious error logging
514 to kernel log when application with open network files killed.
518 Fix /proc/fs module unload warning message (that could be logged
519 to the kernel log). Fix intermittent failure in connectathon
520 test7 (hardlink count not immediately refreshed in case in which
521 inode metadata can be incorrectly kept cached when time near zero)
525 Allow file_mode and dir_mode (specified at mount time) to be enforced
526 locally (the server already enforced its own ACLs too) for servers
527 that do not report the correct mode (do not support the
528 CIFS Unix Extensions).
532 Fix some small memory leaks in some unmount error paths. Fix major leak
533 of cache pages in readpages causing multiple read oriented stress
534 testcases (including fsx, and even large file copy) to fail over time.
538 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
539 This allows files that differ only in case and improves performance of file
540 creation and file open to such servers. Fix semaphore conflict which causes
541 slow delete of open file to Samba (which unfortunately can cause an oplock
542 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
546 fixes to cifs_readpages for fsx test case
550 Fix caching data integrity bug when extending file size especially when no
551 oplock on file. Fix spurious logging of valid already parsed mount options
552 that are parsed outside of the cifs vfs such as nosuid.
557 Connect to server when port number override not specified, and tcp port
558 unitialized. Reset search to restart at correct file when kernel routine
559 filldir returns error during large directory searches (readdir).
563 Fix caching problem when files opened by multiple clients in which
564 page cache could contain stale data, and write through did
565 not occur often enough while file was still open when read ahead
566 (read oplock) not allowed. Treat "sep=" when first mount option
567 as an override of comma as the default separator between mount
572 Allow passwords longer than 16 bytes. Allow null password string.
576 Gracefully clean up failed mounts when attempting to mount to servers such as
577 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
578 embedded commas in mount parsing of passwords.
582 Invalidate local inode cached pages on oplock break and when last file
583 instance is closed so that the client does not continue using stale local
584 copy rather than later modified server copy of file. Do not reconnect
585 when server drops the tcp session prematurely before negotiate
586 protocol response. Fix oops in reopen_file when dentry freed. Allow
587 the support for CIFS Unix Extensions to be disabled via proc interface.
591 Fix hang in commit_write during reconnection of open files under heavy load.
592 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
593 which also fixes any possible races when cifs signatures are enabled in SMBs
594 being sent out of signature sequence number order.
598 Fix byte range locking bug (endian problem) causing bad offset and
603 Fix oops (in send_sig) caused by CIFS unmount code trying to
604 wake up the demultiplex thread after it had exited. Do not log
605 error on harmless oplock release of closed handle.
609 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
610 Fix problem reconnecting secondary mounts to same server after session
611 failure. Fix invalid dentry - race in mkdir when directory gets created
612 by another client between the lookup and mkdir.
616 Fix to list processing in reopen_files. Fix reconnection when server hung
617 but tcpip session still alive. Set proper timeout on socket read.
621 Add missing mount options including iocharset. SMP fixes in write and open.
622 Fix errors in reconnecting after TCP session failure. Fix module unloading
623 of default nls codepage
627 Active smb transactions should never go negative (fix double FreeXid). Fix
628 list processing in file routines. Check return code on kmalloc in open.
629 Fix spinlock usage for SMP.
633 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
634 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
635 on create hard link when server does not support them.
639 Fix scheduling while atomic error in getting inode info on newly created file.
640 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
644 Fix oops on write to dead tcp session. Remove error log write for case when file open
645 O_CREAT but not O_EXCL
649 Fix non-POSIX behavior on rename of open file and delete of open file by taking
650 advantage of trans2 SetFileInfo rename facility if available on target server.
651 Retry on ENOSPC and EAGAIN socket errors.
655 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
656 allocation size miscalculation. After oplock token lost do not read through
661 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
665 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
666 during auto reconnection to server after server recovered from failure.
670 Finish support for Linux 2.5 open/create changes, which removes the
671 redundant NTCreate/QPathInfo/close that was sent during file create.
672 Enable oplock by default. Enable packet signing by default (needed to
673 access many recent Windows servers)
677 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
678 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
679 we will choose a cifs user session (smb uid) that better matches the local
680 uid if a) the mount uid does not match the current uid and b) we have another
681 session to the same server (ip address) for a different mount which
682 matches the current local uid.
686 Add support for mknod of block or character devices. Fix oplock
687 code (distributed caching) to properly send response to oplock
692 Finish up CIFS packet digital signing for the default
693 NTLM security case. This should help Windows 2003
694 network interoperability since it is common for
695 packet signing to be required now. Fix statfs (stat -f)
696 which recently started returning errors due to
697 invalid value (-1 instead of 0) being set in the
698 struct kstatfs f_ffiles field.
702 Fix oops on stopping oplock thread when removing cifs when
707 Fix mount options for ro (readonly), uid, gid and file and directory mode.
711 Fix errors displayed on failed mounts to be more understandable.
712 Fixed various incorrect or misleading smb to posix error code mappings.
716 Fix display of NTFS DFS junctions to display as symlinks.
717 They are the network equivalent. Fix oops in
718 cifs_partialpagewrite caused by missing spinlock protection
719 of openfile linked list. Allow writebehind caching errors to
720 be returned to the application at file close.
724 Clean up options displayed in /proc/mounts by show_options to
725 be more consistent with other filesystems.
729 Fix delete of readonly file to Windows servers. Reflect
730 presence or absence of read only dos attribute in mode
731 bits for servers that do not support CIFS Unix extensions.
732 Fix shortened results on readdir of large directories to
733 servers supporting CIFS Unix extensions (caused by
734 incorrect resume key).
738 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
742 unload nls if mount fails.
746 Add resume key support to search (readdir) code to workaround
747 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
748 allows disabling caching of attribute information for
753 Add more oplock handling (distributed caching code). Remove
754 dead code. Remove excessive stack space utilization from
759 Fix oops in get dfs referral (triggered when null path sent in to
760 mount). Add support for overriding rsize at mount time.
764 Fix buffer overrun in readdir which caused intermittent kernel oopses.
765 Fix writepage code to release kmap on write data. Allow "-ip=" new
766 mount option to be passed in on parameter distinct from the first part
767 (server name portion of) the UNC name. Allow override of the
768 tcp port of the target server via new mount option "-port="
772 Fix search handle leak on rewind. Fix setuid and gid so that they are
773 reflected in the local inode immediately. Cleanup of whitespace
774 to make 2.4 and 2.5 versions more consistent.
779 Fix signal sending so that captive thread (cifsd) exits on umount
780 (which was causing the warning in kmem_cache_free of the request buffers
781 at rmmod time). This had broken as a sideeffect of the recent global
782 kernel change to daemonize. Fix memory leak in readdir code which
783 showed up in "ls -R" (and applications that did search rewinding).
787 Reconnect tids and fids after session reconnection (still do not
788 reconnect byte range locks though). Fix problem caching
789 lookup information for directory inodes, improving performance,
790 especially in deep directory trees. Fix various build warnings.
794 Finish fixes to commit write for caching/readahead consistency. fsx
795 now works to Samba servers. Fix oops caused when readahead
796 was interrupted by a signal.
800 Fix data corruption (in partial page after truncate) that caused fsx to
801 fail to Windows servers. Cleaned up some extraneous error logging in
802 common error paths. Add generic sendfile support.
806 Fix memory leak in AllocMidQEntry.
807 Finish reconnection logic, so connection with server can be dropped
808 (or server rebooted) and the cifs client will reconnect.
812 Fix temporary socket leak when bad userid or password specified
813 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
814 over 16K to allow negotiation of up to Samba and Windows server default read
815 sizes. Add support for readpages
819 Fix oops when username not passed in on mount. Extensive fixes and improvements
820 to error logging (strip redundant newlines, change debug macros to ensure newline
821 passed in and to be more consistent). Fix writepage wrong file handle problem,
822 a readonly file handle could be incorrectly used to attempt to write out
823 file updates through the page cache to multiply open files. This could cause
824 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
825 shares to the same Windows server when using different usernames
826 (doing this to Samba servers worked but Windows was rejecting it) - now it is
827 possible to use different userids when connecting to the same server from a
828 Linux client. Fix oops when treeDisconnect called during unmount on
829 previously freed socket.
833 Fix oops in readpages caused by not setting address space operations in inode in
838 Includes support for deleting of open files and renaming over existing files (per POSIX
839 requirement). Add readlink support for Windows junction points (directory symlinks).
843 Changed read and write to go through pagecache. Added additional address space operations.
844 Memory mapped operations now working.
848 Added writepage code for additional memory mapping support. Fixed leak in xids causing
849 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
850 every stat call. Additional formatting cleanup.
854 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
858 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
859 Also included a modified version of his fix to protect global list manipulation of
860 the smb session and tree connection and mid related global variables.
864 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
865 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
866 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
870 More stylistic updates to better match kernel style. Add additional statistics
871 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
872 and CIFS Packet Signing enablement.
876 Replace call to sleep_on with safer wait_on_event.
877 Make stylistic changes to better match kernel style recommendations.
878 Remove most typedef usage (except for the PDUs themselves).
882 Update mount so the -unc mount option is no longer required (the ip address can be specified
883 in a UNC style device name. Implementation of readpage/writepage started.
887 Fix intermittent problem with incorrect smb header checking on badly
888 fragmented tcp responses
892 Fixes to setting of allocation size and file size.
896 Various 2.5.38 fixes. Now works on 2.5.38
900 Prepare for 2.5 kernel merge. Remove ifdefs.
904 Socket buffer management fixes. Fix dual free.
908 Various big endian fixes for hardlinks and symlinks and also for dfs.
912 Various big endian fixes for servers with Unix extensions such as Samba
916 Various FindNext fixes for incorrect filenames on large directory searches on big endian
917 clients. basic posix file i/o tests now work on big endian machines, not just le
921 SessionSetup and NegotiateProtocol now work from Big Endian machines.
922 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
923 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
927 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
928 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
932 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
933 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
934 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
935 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
939 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
940 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
944 Rewrote much of connection and mount/unmount logic to handle bugs with
945 multiple uses to same share, multiple users to same server etc.
949 Fixed major problem with dentry corruption (missing call to dput)
953 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
954 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
955 although corresponding function not fully implemented in the vfs yet
959 Fixed dentry caching bug, misc. cleanup
963 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
964 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
965 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
969 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
970 and tested against Samba 2.2.5
975 1) Fixed lockrange to be correct (it was one byte too short)
977 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
978 show range as locked when there is a conflict with an existing lock.
980 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
981 in most cases. Eventually will offer optional ability to query server for the correct perms.
983 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
984 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
987 4) Fixed error logging of valid mount options
989 5) Removed logging of password field.
991 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
992 and cleaned them up and made them more consistent with other cifs functions.
994 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
995 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
996 nor is the symlink support using the Unix extensions
998 8) Started adding the readlink and follow_link code
git://ftp.safe.ca / safe / jmp / linux-2.6 / blob