3 Client uses server inode numbers (which are persistent) rather than
4 client generated ones by default (mount option "serverino" turned
5 on by default if server supports it).
9 Guard against buffer overruns in various UCS-2 to UTF-8 string conversions
10 when the UTF-8 string is composed of unusually long (more than 4 byte) converted
11 characters. Add support for mounting root of a share which redirects immediately
12 to DFS target. Convert string conversion functions from Unicode to more
13 accurately mark string length before allocating memory (which may help the
14 rare cases where a UTF-8 string is much larger than the UCS2 string that
15 we converted from). Fix endianness of the vcnum field used during
16 session setup to distinguish multiple mounts to same server from different
17 userids. Raw NTLMSSP fixed (it requires /proc/fs/cifs/experimental
18 flag to be set to 2, and mount must enable krb5 to turn on extended security).
19 Performance of file create to Samba improved (posix create on lookup
20 removes 1 of 2 network requests sent on file create)
24 Improve support for multiple security contexts to the same server. We
25 used to use the same "vcnumber" for all connections which could cause
26 the server to treat subsequent connections, especially those that
27 are authenticated as guest, as reconnections, invalidating the earlier
28 user's smb session. This fix allows cifs to mount multiple times to the
29 same server with different userids without risking invalidating earlier
30 established security contexts. fsync now sends SMB Flush operation
31 to better ensure that we wait for server to write all of the data to
32 server disk (not just write it over the network). Add new mount
33 parameter to allow user to disable sending the (slow) SMB flush on
34 fsync if desired (fsync still flushes all cached write data to the server).
35 Posix file open support added (turned off after one attempt if server
36 fails to support it properly, as with Samba server versions prior to 3.3.2)
37 Fix "redzone overwritten" bug in cifs_put_tcon (CIFSTcon may allocate too
38 little memory for the "nativeFileSystem" field returned by the server
39 during mount). Endian convert inode numbers if necessary (makes it easier
40 to compare inode numbers on network files from big endian systems).
44 Add "forcemandatorylock" mount option to allow user to use mandatory
45 rather than posix (advisory) byte range locks, even though server would
46 support posix byte range locks. Fix query of root inode when prefixpath
47 specified and user does not have access to query information about the
48 top of the share. Fix problem in 2.6.28 resolving DFS paths to
49 Samba servers (worked to Windows). Fix rmdir so that pending search
50 (readdir) requests do not get invalid results which include the now
51 removed directory. Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
52 when using DFS. Add better file create support to servers which support
53 the CIFS POSIX protocol extensions (this adds support for new flags
54 on create, and improves semantics for write of locked ranges).
58 Various fixes to make delete of open files behavior more predictable
59 (when delete of an open file fails we mark the file as "delete-on-close"
60 in a way that more servers accept, but only if we can first rename the
61 file to a temporary name). Add experimental support for more safely
62 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
63 sends, and also let tcp autotune the socket send and receive buffers.
64 This reduces the number of EAGAIN errors returned by TCP/IP in
65 high stress workloads (and the number of retries on socket writes
66 when sending large SMBWriteX requests). Fix case in which a portion of
67 data can in some cases not get written to the file on the server before the
68 file is closed. Fix DFS parsing to properly handle path consumed field,
69 and to handle certain codepage conversions better. Fix mount and
70 umount race that can cause oops in mount or umount or reconnect.
74 Fix premature write failure on congested networks (we would give up
75 on EAGAIN from the socket too quickly on large writes).
76 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
77 Fix endian problems in acl (mode from/to cifs acl) on bigendian
78 architectures. Fix problems with preserving timestamps on copying open
79 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
80 on parent directory when server supports Unix Extensions but not POSIX
81 create. Update cifs.upcall version to handle new Kerberos sec flags
82 (this requires update of cifs.upcall program from Samba). Fix memory leak
83 on dns_upcall (resolving DFS referralls). Fix plain text password
84 authentication (requires setting SecurityFlags to 0x30030 to enable
85 lanman and plain text though). Fix writes to be at correct offset when
86 file is open with O_APPEND and file is on a directio (forcediretio) mount.
87 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
91 DFS support added (Microsoft Distributed File System client support needed
92 for referrals which enable a hierarchical name space among servers).
93 Disable temporary caching of mode bits to servers which do not support
94 storing of mode (e.g. Windows servers, when client mounts without cifsacl
95 mount option) and add new "dynperm" mount option to enable temporary caching
96 of mode (enable old behavior). Fix hang on mount caused when server crashes
97 tcp session during negotiate protocol.
101 Fix oops on second mount to server when null auth is used.
102 Enable experimental Kerberos support. Return writebehind errors on flush
103 and sync so that events like out of disk space get reported properly on
104 cached files. Fix setxattr failure to certain Samba versions. Fix mount
105 of second share to disconnected server session (autoreconnect on this).
106 Add ability to modify cifs acls for handling chmod (when mounted with
107 cifsacl flag). Fix prefixpath path separator so we can handle mounts
108 with prefixpaths longer than one directory (one path component) when
109 mounted to Windows servers. Fix slow file open when cifsacl
110 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
115 Fix memory leak in statfs when mounted to very old servers (e.g.
116 Windows 9x). Add new feature "POSIX open" which allows servers
117 which support the current POSIX Extensions to provide better semantics
118 (e.g. delete for open files opened with posix open). Take into
119 account umask on posix mkdir not just older style mkdir. Add
120 ability to mount to IPC$ share (which allows CIFS named pipes to be
121 opened, read and written as if they were files). When 1st tree
122 connect fails (e.g. due to signing negotiation failure) fix
123 leak that causes cifsd not to stop and rmmod to fail to cleanup
124 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
125 bigendian architectures. Fix possible memory corruption when
126 EAGAIN returned on kern_recvmsg. Return better error if server
127 requires packet signing but client has disabled it. When mounted
128 with cifsacl mount option - mode bits are approximated based
129 on the contents of the ACL of the file or directory. When cifs
130 mount helper is missing convert make sure that UNC name
131 has backslash (not forward slash) between ip address of server
136 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
137 done with "serverino" mount option). Add support for POSIX Unlink
138 (helps with certain sharing violation cases when server such as
139 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
140 mount option to allow disabling the CIFS Unix Extensions for just
141 that mount. Fix hang on spinlock in find_writable_file (race when
142 reopening file after session crash). Byte range unlock request to
143 windows server could unlock more bytes (on server copy of file)
144 than intended if start of unlock request is well before start of
145 a previous byte range lock that we issued.
149 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
150 address after the "ip=" mount option, at least until mount.cifs is fixed to
151 handle DNS host to ipv6 name translation). Accept override of uid or gid
152 on mount even when Unix Extensions are negotiated (it used to be ignored
153 when Unix Extensions were ignored). This allows users to override the
154 default uid and gid for files when they are certain that the uids or
155 gids on the server do not match those of the client. Make "sec=none"
156 mount override username (so that null user connection is attempted)
157 to match what documentation said. Support for very large reads, over 127K,
158 available to some newer servers (such as Samba 3.0.26 and later but
159 note that it also requires setting CIFSMaxBufSize at module install
160 time to a larger value which may hurt performance in some cases).
161 Make sign option force signing (or fail if server does not support it).
165 Fix mtime bouncing around from local idea of last write times to remote time.
166 Fix hang (in i_size_read) when simultaneous size update of same remote file
167 on smp system corrupts sequence number. Do not reread unnecessarily partial page
168 (which we are about to overwrite anyway) when writing out file opened rw.
169 When DOS attribute of file on non-Unix server's file changes on the server side
170 from read-only back to read-write, reflect this change in default file mode
171 (we had been leaving a file's mode read-only until the inode were reloaded).
172 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
173 when archive dos attribute not set and we are changing mode back to writeable
174 on server which does not support the Unix Extensions). Remove read only dos
175 attribute on chmod when adding any write permission (ie on any of
176 user/group/other (not all of user/group/other ie 0222) when
177 mounted to windows. Add support for POSIX MkDir (slight performance
178 enhancement and eliminates the network race between the mkdir and set
179 path info of the mode).
184 Fix oops in list_del during mount caused by unaligned string.
185 Fix file corruption which could occur on some large file
186 copies caused by writepages page i/o completion bug.
187 Seek to SEEK_END forces check for update of file size for non-cached
188 files. Allow file size to be updated on remote extend of locally open,
189 non-cached file. Fix reconnect to newer Samba servers (or other servers
190 which support the CIFS Unix/POSIX extensions) so that we again tell the
191 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
192 Add experimental support for new POSIX Open/Mkdir (which returns
193 stat information on the open, and allows setting the mode).
197 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
198 Allow null user to be specified on mount ("username="). Do not return
199 EINVAL on readdir when filldir fails due to overwritten blocksize
200 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
201 if rename by handle also fails, after rename by path fails, we were
202 not reporting whether the retry worked or not). Fix NTLMv2 to
203 work to Windows servers (mount with option "sec=ntlmv2").
207 Do not time out lockw calls when using posix extensions. Do not
208 time out requests if server still responding reasonably fast
209 on requests on other threads. Improve POSIX locking emulation,
210 (lock cancel now works, and unlock of merged range works even
211 to Windows servers now). Fix oops on mount to lanman servers
212 (win9x, os/2 etc.) when null password. Do not send listxattr
213 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
214 problem (instantiate inodes/dentries in right order for readdir).
218 Rewritten sessionsetup support, including support for legacy SMB
219 session setup needed for OS/2 and older servers such as Windows 95 and 98.
220 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
221 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
222 or recent levels of FindFirst unless server says it supports NT SMBs
223 (instead use legacy equivalents from LANMAN dialect). Fix to allow
224 NTLMv2 authentication support (now can use stronger password hashing
225 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
226 Allow override of global cifs security flags on mount via "sec=" option(s).
230 POSIX locking to servers which support CIFS POSIX Extensions
231 (disabled by default controlled by proc/fs/cifs/Experimental).
232 Handle conversion of long share names (especially Asian languages)
233 to Unicode during mount. Fix memory leak in sess struct on reconnect.
234 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
235 cifs open which helps rare case when setpathinfo fails or server does
240 Fix slow oplock break when mounted to different servers at the same time and
241 the tids match and we try to find matching fid on wrong server. Fix read
242 looping when signing required by server (2.6.16 kernel only). Fix readdir
243 vs. rename race which could cause each to hang. Return . and .. even
244 if server does not. Allow searches to skip first three entries and
245 begin at any location. Fix oops in find_writeable_file.
249 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
250 configure stronger authentication. Fix sfu symlinks so they can
251 be followed (not just recognized). Fix wraparound of bcc on
252 read responses when buffer size over 64K and also fix wrap of
253 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
254 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
255 on socket is returned over and over). Add POSIX (advisory) byte range
256 locking support (requires server with newest CIFS UNIX Extensions
257 to the protocol implemented). Slow down negprot slightly in port 139
258 RFC1001 case to give session_init time on buggy servers.
262 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
263 of readpages by eliminating one extra memcpy. Allow update of file size
264 from remote server even if file is open for write as long as mount is
265 directio. Recognize share mode security and send NTLM encrypted password
266 on tree connect if share mode negotiated.
270 Defer close of a file handle slightly if pending writes depend on that handle
271 (this reduces the EBADF bad file handle errors that can be logged under heavy
272 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
273 Fix SFU style symlinks and mknod needed for servers which do not support the
274 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
275 dentries so files that the client sees as deleted but that later get created
276 on the server will be recognized. Add client side permission check on setattr.
277 Timeout stuck requests better (where server has never responded or sent corrupt
282 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
283 to be smaller at first (but increasing) so large write performance performance
284 over GigE is better. Do not hang thread on illegal byte range lock response
285 from Windows (Windows can send an RFC1001 size which does not match smb size) by
286 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
287 wsize and rsize can now be larger than negotiated buffer size if server
288 supports large readx/writex, even when directio mount flag not specified.
289 Write size will in many cases now be 16K instead of 4K which greatly helps
290 file copy performance on lightly loaded networks. Fix oops in dnotify
291 when experimental config flag enabled. Make cifsFYI more granular.
295 Fix readdir caching when unlink removes file in current search buffer,
296 and this is followed by a rewind search to just before the deleted entry.
297 Do not attempt to set ctime unless atime and/or mtime change requested
298 (most servers throw it away anyway). Fix length check of received smbs
299 to be more accurate. Fix big endian problem with mapchars mount option,
300 and with a field returned by statfs.
304 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
305 For these older servers, add option for passing netbios name of server in
306 on mount (servernetbiosname). Add suspend support for power management, to
307 avoid cifsd thread preventing software suspend from working.
308 Add mount option for disabling the default behavior of sending byte range lock
309 requests to the server (necessary for certain applications which break with
310 mandatory lock behavior such as Evolution), and also mount option for
311 requesting case insensitive matching for path based requests (requesting
312 case sensitive is the default).
316 Add writepage performance improvements. Fix path name conversions
317 for long filenames on mounts which were done with "mapchars" mount option
318 specified. Ensure multiplex ids do not collide. Fix case in which
319 rmmod can oops if done soon after last unmount. Fix truncated
320 search (readdir) output when resume filename was a long filename.
321 Fix filename conversion when mapchars mount option was specified and
322 filename was a long filename.
326 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
327 Do not oops if root user kills cifs oplock kernel thread or
328 kills the cifsd thread (NB: killing the cifs kernel threads is not
329 recommended, unmount and rmmod cifs will kill them when they are
330 no longer needed). Fix readdir to ASCII servers (ie older servers
331 which do not support Unicode) and also require asterisk.
332 Fix out of memory case in which data could be written one page
333 off in the page cache.
337 Fix caching problem, in which readdir of directory containing a file
338 which was cached could cause the file's time stamp to be updated
339 without invalidating the readahead data (so we could get stale
340 file data on the client for that file even as the server copy changed).
341 Cleanup response processing so cifsd can not loop when abnormally
347 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
348 transact response for an SMB request and search entry split across two frames.
349 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
350 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
351 unless server explicitly claims to support them in CIFS Unix extensions
352 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
353 different users from the same client to the same server. Fix oops in
354 cifs_close. Add mount option for remapping reserved characters in
355 filenames (also allow recognizing files with created by SFU which have any
356 of these seven reserved characters, except backslash, to be recognized).
357 Fix invalid transact2 message (we were sometimes trying to interpret
358 oplock breaks as SMB responses). Add ioctl for checking that the
359 current uid matches the uid of the mounter (needed by umount.cifs).
360 Reduce the number of large buffer allocations in cifs response processing
361 (significantly reduces memory pressure under heavy stress with multiple
362 processes accessing the same server at the same time).
366 Fix updates of DOS attributes and time fields so that files on NT4 servers
367 do not get marked delete on close. Display sizes of cifs buffer pools in
368 cifs stats. Fix oops in unmount when cifsd thread being killed by
369 shutdown. Add generic readv/writev and aio support. Report inode numbers
370 consistently in readdir and lookup (when serverino mount option is
371 specified use the inode number that the server reports - for both lookup
372 and readdir, otherwise by default the locally generated inode number is used
373 for inodes created in either path since servers are not always able to
374 provide unique inode numbers when exporting multiple volumes from under one
379 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
380 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
381 (mostly affects NT4 servers) by retry with handle based network operation.
382 Add new POSIX Query FS Info for returning statfs info more accurately.
383 Handle passwords with multiple commas in them.
387 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
388 Fix capabilities flags for large readx so as to allow reads larger than 64K.
392 Add module init parm for large SMB buffer size (to allow it to be changed
393 from its default of 16K) which is especially useful for large file copy
394 when mounting with the directio mount option. Fix oops after
395 returning from mount when experimental ExtendedSecurity enabled and
396 SpnegoNegotiated returning invalid error. Fix case to retry better when
397 peek returns from 1 to 3 bytes on socket which should have more data.
398 Fixed path based calls (such as cifs lookup) to handle path names
399 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
400 from Samba server to DC (Samba required dummy LM password).
404 Turn off DNOTIFY (directory change notification support) by default
405 (unless built with the experimental flag) to fix hang with KDE
406 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
407 waiting on an SMB response) in SendReceive when session dies but
408 reconnects quickly from another task. Add module init parms for
409 minimum number of large and small network buffers in the buffer pools,
410 and for the maximum number of simultaneous requests.
414 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
415 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
416 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
417 improperly zeroed buffer in CIFS Unix extensions set times call.
421 Fix internationalization problem in cifs readdir with filenames that map to
422 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
423 for readdir to netapp servers. Fix search rewind (seek into readdir to return
424 non-consecutive entries). Do not do readdir when server negotiates
425 buffer size to small to fit filename. Add support for reading POSIX ACLs from
426 the server (add also acl and noacl mount options).
430 Optionally allow using server side inode numbers, rather than client generated
431 ones by specifying mount option "serverino" - this is required for some apps
432 to work which double check hardlinked files and have persistent inode numbers.
436 Multiple bigendian fixes. On little endian systems (for reconnect after
437 network failure) fix tcp session reconnect code so we do not try first
438 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
439 as directories rather than symlinks because we can do follow link on them.
443 Add config option to enable XATTR (extended attribute) support, mapping
444 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
445 minor fixes pointed out by the Stanford SWAT checker (mostly missing
446 or out of order NULL pointer checks in little used error paths).
450 Add new mount parm to control whether mode check (generic_permission) is done
451 on the client. If Unix extensions are enabled and the uids on the client
452 and server do not match, client permission checks are meaningless on
453 server uids that do not exist on the client (this does not affect the
454 normal ACL check which occurs on the server). Fix default uid
455 on mknod to match create and mkdir. Add optional mount parm to allow
456 override of the default uid behavior (in which the server sets the uid
457 and gid of newly created files). Normally for network filesystem mounts
458 user want the server to set the uid/gid on newly created files (rather than
459 using uid of the client processes you would in a local filesystem).
463 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
464 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
465 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
466 (block/char/fifo) properly. Remove spurious mount warning log entry when
467 credentials passed as mount argument. Set major/minor device number in
468 inode for block and char devices when unix extensions enabled.
472 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
473 amounts of return data. Properly limit requests to MAX_REQ (50
474 is the usual maximum active multiplex SMB/CIFS requests per server).
475 Do not kill cifsd (and thus hurt the other SMB session) when more than one
476 session to the same server (but with different userids) exists and one
477 of the two user's smb sessions is being removed while leaving the other.
478 Do not loop reconnecting in cifsd demultiplex thread when admin
479 kills the thread without going through unmount.
483 Do not rename hardlinked files (since that should be a noop). Flush
484 cached write behind data when reopening a file after session abend,
485 except when already in write. Grab per socket sem during reconnect
486 to avoid oops in sendmsg if overlapping with reconnect. Do not
487 reset cached inode file size on readdir for files open for write on
493 Update number of blocks in file so du command is happier (in Linux a fake
494 blocksize of 512 is required for calculating number of blocks in inode).
495 Fix prepare write of partial pages to read in data from server if possible.
496 Fix race on tcpStatus field between unmount and reconnection code, causing
497 cifsd process sometimes to hang around forever. Improve out of memory
498 checks in cifs_filldir
502 Fix incorrect file size in file handle based setattr on big endian hardware.
503 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
504 and closing file structs in writepage/partialpagewrite. Add statistics
505 for each mounted share (new menuconfig option). Fix endianness problem in
506 volume information displayed in /proc/fs/cifs/DebugData (only affects
507 affects big endian architectures). Prevent renames while constructing
508 path names for open, mkdir and rmdir.
512 Change to mempools for alloc smb request buffers and multiplex structs
513 to better handle low memory problems (and potential deadlocks).
517 Fix incomplete listings of large directories on Samba servers when Unix
518 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
519 rename deadlock when writing out dirty pages at same time.
523 Fix open of files in which O_CREATE can cause the mode to change in
524 some cases. Fix case in which retry of write overlaps file close.
525 Fix PPC64 build error. Reduce excessive stack usage in smb password
526 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
530 Fixes for large file copy, signal handling, socket retry, buffer
531 allocation and low memory situations.
535 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
536 also now allowing support for specifying client netbiosname. NT4 support added.
540 Fix reconnection (and certain failed mounts) to properly wake up the
541 blocked users thread so it does not seem hung (in some cases was blocked
542 until the cifs receive timeout expired). Fix spurious error logging
543 to kernel log when application with open network files killed.
547 Fix /proc/fs module unload warning message (that could be logged
548 to the kernel log). Fix intermittent failure in connectathon
549 test7 (hardlink count not immediately refreshed in case in which
550 inode metadata can be incorrectly kept cached when time near zero)
554 Allow file_mode and dir_mode (specified at mount time) to be enforced
555 locally (the server already enforced its own ACLs too) for servers
556 that do not report the correct mode (do not support the
557 CIFS Unix Extensions).
561 Fix some small memory leaks in some unmount error paths. Fix major leak
562 of cache pages in readpages causing multiple read oriented stress
563 testcases (including fsx, and even large file copy) to fail over time.
567 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
568 This allows files that differ only in case and improves performance of file
569 creation and file open to such servers. Fix semaphore conflict which causes
570 slow delete of open file to Samba (which unfortunately can cause an oplock
571 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
575 fixes to cifs_readpages for fsx test case
579 Fix caching data integrity bug when extending file size especially when no
580 oplock on file. Fix spurious logging of valid already parsed mount options
581 that are parsed outside of the cifs vfs such as nosuid.
586 Connect to server when port number override not specified, and tcp port
587 unitialized. Reset search to restart at correct file when kernel routine
588 filldir returns error during large directory searches (readdir).
592 Fix caching problem when files opened by multiple clients in which
593 page cache could contain stale data, and write through did
594 not occur often enough while file was still open when read ahead
595 (read oplock) not allowed. Treat "sep=" when first mount option
596 as an override of comma as the default separator between mount
601 Allow passwords longer than 16 bytes. Allow null password string.
605 Gracefully clean up failed mounts when attempting to mount to servers such as
606 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
607 embedded commas in mount parsing of passwords.
611 Invalidate local inode cached pages on oplock break and when last file
612 instance is closed so that the client does not continue using stale local
613 copy rather than later modified server copy of file. Do not reconnect
614 when server drops the tcp session prematurely before negotiate
615 protocol response. Fix oops in reopen_file when dentry freed. Allow
616 the support for CIFS Unix Extensions to be disabled via proc interface.
620 Fix hang in commit_write during reconnection of open files under heavy load.
621 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
622 which also fixes any possible races when cifs signatures are enabled in SMBs
623 being sent out of signature sequence number order.
627 Fix byte range locking bug (endian problem) causing bad offset and
632 Fix oops (in send_sig) caused by CIFS unmount code trying to
633 wake up the demultiplex thread after it had exited. Do not log
634 error on harmless oplock release of closed handle.
638 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
639 Fix problem reconnecting secondary mounts to same server after session
640 failure. Fix invalid dentry - race in mkdir when directory gets created
641 by another client between the lookup and mkdir.
645 Fix to list processing in reopen_files. Fix reconnection when server hung
646 but tcpip session still alive. Set proper timeout on socket read.
650 Add missing mount options including iocharset. SMP fixes in write and open.
651 Fix errors in reconnecting after TCP session failure. Fix module unloading
652 of default nls codepage
656 Active smb transactions should never go negative (fix double FreeXid). Fix
657 list processing in file routines. Check return code on kmalloc in open.
658 Fix spinlock usage for SMP.
662 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
663 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
664 on create hard link when server does not support them.
668 Fix scheduling while atomic error in getting inode info on newly created file.
669 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
673 Fix oops on write to dead tcp session. Remove error log write for case when file open
674 O_CREAT but not O_EXCL
678 Fix non-POSIX behavior on rename of open file and delete of open file by taking
679 advantage of trans2 SetFileInfo rename facility if available on target server.
680 Retry on ENOSPC and EAGAIN socket errors.
684 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
685 allocation size miscalculation. After oplock token lost do not read through
690 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
694 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
695 during auto reconnection to server after server recovered from failure.
699 Finish support for Linux 2.5 open/create changes, which removes the
700 redundant NTCreate/QPathInfo/close that was sent during file create.
701 Enable oplock by default. Enable packet signing by default (needed to
702 access many recent Windows servers)
706 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
707 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
708 we will choose a cifs user session (smb uid) that better matches the local
709 uid if a) the mount uid does not match the current uid and b) we have another
710 session to the same server (ip address) for a different mount which
711 matches the current local uid.
715 Add support for mknod of block or character devices. Fix oplock
716 code (distributed caching) to properly send response to oplock
721 Finish up CIFS packet digital signing for the default
722 NTLM security case. This should help Windows 2003
723 network interoperability since it is common for
724 packet signing to be required now. Fix statfs (stat -f)
725 which recently started returning errors due to
726 invalid value (-1 instead of 0) being set in the
727 struct kstatfs f_ffiles field.
731 Fix oops on stopping oplock thread when removing cifs when
736 Fix mount options for ro (readonly), uid, gid and file and directory mode.
740 Fix errors displayed on failed mounts to be more understandable.
741 Fixed various incorrect or misleading smb to posix error code mappings.
745 Fix display of NTFS DFS junctions to display as symlinks.
746 They are the network equivalent. Fix oops in
747 cifs_partialpagewrite caused by missing spinlock protection
748 of openfile linked list. Allow writebehind caching errors to
749 be returned to the application at file close.
753 Clean up options displayed in /proc/mounts by show_options to
754 be more consistent with other filesystems.
758 Fix delete of readonly file to Windows servers. Reflect
759 presence or absence of read only dos attribute in mode
760 bits for servers that do not support CIFS Unix extensions.
761 Fix shortened results on readdir of large directories to
762 servers supporting CIFS Unix extensions (caused by
763 incorrect resume key).
767 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
771 unload nls if mount fails.
775 Add resume key support to search (readdir) code to workaround
776 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
777 allows disabling caching of attribute information for
782 Add more oplock handling (distributed caching code). Remove
783 dead code. Remove excessive stack space utilization from
788 Fix oops in get dfs referral (triggered when null path sent in to
789 mount). Add support for overriding rsize at mount time.
793 Fix buffer overrun in readdir which caused intermittent kernel oopses.
794 Fix writepage code to release kmap on write data. Allow "-ip=" new
795 mount option to be passed in on parameter distinct from the first part
796 (server name portion of) the UNC name. Allow override of the
797 tcp port of the target server via new mount option "-port="
801 Fix search handle leak on rewind. Fix setuid and gid so that they are
802 reflected in the local inode immediately. Cleanup of whitespace
803 to make 2.4 and 2.5 versions more consistent.
808 Fix signal sending so that captive thread (cifsd) exits on umount
809 (which was causing the warning in kmem_cache_free of the request buffers
810 at rmmod time). This had broken as a sideeffect of the recent global
811 kernel change to daemonize. Fix memory leak in readdir code which
812 showed up in "ls -R" (and applications that did search rewinding).
816 Reconnect tids and fids after session reconnection (still do not
817 reconnect byte range locks though). Fix problem caching
818 lookup information for directory inodes, improving performance,
819 especially in deep directory trees. Fix various build warnings.
823 Finish fixes to commit write for caching/readahead consistency. fsx
824 now works to Samba servers. Fix oops caused when readahead
825 was interrupted by a signal.
829 Fix data corruption (in partial page after truncate) that caused fsx to
830 fail to Windows servers. Cleaned up some extraneous error logging in
831 common error paths. Add generic sendfile support.
835 Fix memory leak in AllocMidQEntry.
836 Finish reconnection logic, so connection with server can be dropped
837 (or server rebooted) and the cifs client will reconnect.
841 Fix temporary socket leak when bad userid or password specified
842 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
843 over 16K to allow negotiation of up to Samba and Windows server default read
844 sizes. Add support for readpages
848 Fix oops when username not passed in on mount. Extensive fixes and improvements
849 to error logging (strip redundant newlines, change debug macros to ensure newline
850 passed in and to be more consistent). Fix writepage wrong file handle problem,
851 a readonly file handle could be incorrectly used to attempt to write out
852 file updates through the page cache to multiply open files. This could cause
853 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
854 shares to the same Windows server when using different usernames
855 (doing this to Samba servers worked but Windows was rejecting it) - now it is
856 possible to use different userids when connecting to the same server from a
857 Linux client. Fix oops when treeDisconnect called during unmount on
858 previously freed socket.
862 Fix oops in readpages caused by not setting address space operations in inode in
867 Includes support for deleting of open files and renaming over existing files (per POSIX
868 requirement). Add readlink support for Windows junction points (directory symlinks).
872 Changed read and write to go through pagecache. Added additional address space operations.
873 Memory mapped operations now working.
877 Added writepage code for additional memory mapping support. Fixed leak in xids causing
878 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
879 every stat call. Additional formatting cleanup.
883 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
887 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
888 Also included a modified version of his fix to protect global list manipulation of
889 the smb session and tree connection and mid related global variables.
893 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
894 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
895 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
899 More stylistic updates to better match kernel style. Add additional statistics
900 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
901 and CIFS Packet Signing enablement.
905 Replace call to sleep_on with safer wait_on_event.
906 Make stylistic changes to better match kernel style recommendations.
907 Remove most typedef usage (except for the PDUs themselves).
911 Update mount so the -unc mount option is no longer required (the ip address can be specified
912 in a UNC style device name. Implementation of readpage/writepage started.
916 Fix intermittent problem with incorrect smb header checking on badly
917 fragmented tcp responses
921 Fixes to setting of allocation size and file size.
925 Various 2.5.38 fixes. Now works on 2.5.38
929 Prepare for 2.5 kernel merge. Remove ifdefs.
933 Socket buffer management fixes. Fix dual free.
937 Various big endian fixes for hardlinks and symlinks and also for dfs.
941 Various big endian fixes for servers with Unix extensions such as Samba
945 Various FindNext fixes for incorrect filenames on large directory searches on big endian
946 clients. basic posix file i/o tests now work on big endian machines, not just le
950 SessionSetup and NegotiateProtocol now work from Big Endian machines.
951 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
952 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
956 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
957 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
961 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
962 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
963 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
964 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
968 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
969 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
973 Rewrote much of connection and mount/unmount logic to handle bugs with
974 multiple uses to same share, multiple users to same server etc.
978 Fixed major problem with dentry corruption (missing call to dput)
982 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
983 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
984 although corresponding function not fully implemented in the vfs yet
988 Fixed dentry caching bug, misc. cleanup
992 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
993 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
994 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
998 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
999 and tested against Samba 2.2.5
1004 1) Fixed lockrange to be correct (it was one byte too short)
1006 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
1007 show range as locked when there is a conflict with an existing lock.
1009 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
1010 in most cases. Eventually will offer optional ability to query server for the correct perms.
1012 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
1013 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
1016 4) Fixed error logging of valid mount options
1018 5) Removed logging of password field.
1020 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
1021 and cleaned them up and made them more consistent with other cifs functions.
1023 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
1024 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
1025 nor is the symlink support using the Unix extensions
1027 8) Started adding the readlink and follow_link code
projects / linux-2.6 / blob