3 Various fixes to make delete of open files behavior more predictable
4 (when delete of an open file fails we mark the file as "delete-on-close"
5 in a way that more servers accept, but only if we can first rename the
6 file to a temporary name). Add experimental support for more safely
7 handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
8 sends, and also let tcp autotune the socket send and receive buffers.
9 This reduces the number of EAGAIN errors returned by TCP/IP in
10 high stress workloads (and the number of retries on socket writes
11 when sending large SMBWriteX requests). Fix case in which a portion of
12 data can in some cases not get written to the file on the server before the
13 file is closed. Fix DFS parsing to properly handle path consumed field,
14 and to handle certain codepage conversions better. Fix mount and
15 umount race that can cause oops in mount or umount or reconnect.
19 Fix premature write failure on congested networks (we would give up
20 on EAGAIN from the socket too quickly on large writes).
21 Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
22 Fix endian problems in acl (mode from/to cifs acl) on bigendian
23 architectures. Fix problems with preserving timestamps on copying open
24 files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
25 on parent directory when server supports Unix Extensions but not POSIX
26 create. Update cifs.upcall version to handle new Kerberos sec flags
27 (this requires update of cifs.upcall program from Samba). Fix memory leak
28 on dns_upcall (resolving DFS referralls). Fix plain text password
29 authentication (requires setting SecurityFlags to 0x30030 to enable
30 lanman and plain text though). Fix writes to be at correct offset when
31 file is open with O_APPEND and file is on a directio (forcediretio) mount.
32 Fix bug in rewinding readdir directory searches. Add nodfs mount option.
36 DFS support added (Microsoft Distributed File System client support needed
37 for referrals which enable a hierarchical name space among servers).
38 Disable temporary caching of mode bits to servers which do not support
39 storing of mode (e.g. Windows servers, when client mounts without cifsacl
40 mount option) and add new "dynperm" mount option to enable temporary caching
41 of mode (enable old behavior). Fix hang on mount caused when server crashes
42 tcp session during negotiate protocol.
46 Fix oops on second mount to server when null auth is used.
47 Enable experimental Kerberos support. Return writebehind errors on flush
48 and sync so that events like out of disk space get reported properly on
49 cached files. Fix setxattr failure to certain Samba versions. Fix mount
50 of second share to disconnected server session (autoreconnect on this).
51 Add ability to modify cifs acls for handling chmod (when mounted with
52 cifsacl flag). Fix prefixpath path separator so we can handle mounts
53 with prefixpaths longer than one directory (one path component) when
54 mounted to Windows servers. Fix slow file open when cifsacl
55 enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
60 Fix memory leak in statfs when mounted to very old servers (e.g.
61 Windows 9x). Add new feature "POSIX open" which allows servers
62 which support the current POSIX Extensions to provide better semantics
63 (e.g. delete for open files opened with posix open). Take into
64 account umask on posix mkdir not just older style mkdir. Add
65 ability to mount to IPC$ share (which allows CIFS named pipes to be
66 opened, read and written as if they were files). When 1st tree
67 connect fails (e.g. due to signing negotiation failure) fix
68 leak that causes cifsd not to stop and rmmod to fail to cleanup
69 cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
70 bigendian architectures. Fix possible memory corruption when
71 EAGAIN returned on kern_recvmsg. Return better error if server
72 requires packet signing but client has disabled it. When mounted
73 with cifsacl mount option - mode bits are approximated based
74 on the contents of the ACL of the file or directory. When cifs
75 mount helper is missing convert make sure that UNC name
76 has backslash (not forward slash) between ip address of server
81 Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
82 done with "serverino" mount option). Add support for POSIX Unlink
83 (helps with certain sharing violation cases when server such as
84 Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
85 mount option to allow disabling the CIFS Unix Extensions for just
86 that mount. Fix hang on spinlock in find_writable_file (race when
87 reopening file after session crash). Byte range unlock request to
88 windows server could unlock more bytes (on server copy of file)
89 than intended if start of unlock request is well before start of
90 a previous byte range lock that we issued.
94 IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
95 address after the "ip=" mount option, at least until mount.cifs is fixed to
96 handle DNS host to ipv6 name translation). Accept override of uid or gid
97 on mount even when Unix Extensions are negotiated (it used to be ignored
98 when Unix Extensions were ignored). This allows users to override the
99 default uid and gid for files when they are certain that the uids or
100 gids on the server do not match those of the client. Make "sec=none"
101 mount override username (so that null user connection is attempted)
102 to match what documentation said. Support for very large reads, over 127K,
103 available to some newer servers (such as Samba 3.0.26 and later but
104 note that it also requires setting CIFSMaxBufSize at module install
105 time to a larger value which may hurt performance in some cases).
106 Make sign option force signing (or fail if server does not support it).
110 Fix mtime bouncing around from local idea of last write times to remote time.
111 Fix hang (in i_size_read) when simultaneous size update of same remote file
112 on smp system corrupts sequence number. Do not reread unnecessarily partial page
113 (which we are about to overwrite anyway) when writing out file opened rw.
114 When DOS attribute of file on non-Unix server's file changes on the server side
115 from read-only back to read-write, reflect this change in default file mode
116 (we had been leaving a file's mode read-only until the inode were reloaded).
117 Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
118 when archive dos attribute not set and we are changing mode back to writeable
119 on server which does not support the Unix Extensions). Remove read only dos
120 attribute on chmod when adding any write permission (ie on any of
121 user/group/other (not all of user/group/other ie 0222) when
122 mounted to windows. Add support for POSIX MkDir (slight performance
123 enhancement and eliminates the network race between the mkdir and set
124 path info of the mode).
129 Fix oops in list_del during mount caused by unaligned string.
130 Fix file corruption which could occur on some large file
131 copies caused by writepages page i/o completion bug.
132 Seek to SEEK_END forces check for update of file size for non-cached
133 files. Allow file size to be updated on remote extend of locally open,
134 non-cached file. Fix reconnect to newer Samba servers (or other servers
135 which support the CIFS Unix/POSIX extensions) so that we again tell the
136 server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
137 Add experimental support for new POSIX Open/Mkdir (which returns
138 stat information on the open, and allows setting the mode).
142 Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
143 Allow null user to be specified on mount ("username="). Do not return
144 EINVAL on readdir when filldir fails due to overwritten blocksize
145 (fixes FC problem). Return error in rename 2nd attempt retry (ie report
146 if rename by handle also fails, after rename by path fails, we were
147 not reporting whether the retry worked or not). Fix NTLMv2 to
148 work to Windows servers (mount with option "sec=ntlmv2").
152 Do not time out lockw calls when using posix extensions. Do not
153 time out requests if server still responding reasonably fast
154 on requests on other threads. Improve POSIX locking emulation,
155 (lock cancel now works, and unlock of merged range works even
156 to Windows servers now). Fix oops on mount to lanman servers
157 (win9x, os/2 etc.) when null password. Do not send listxattr
158 (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
159 problem (instantiate inodes/dentries in right order for readdir).
163 Rewritten sessionsetup support, including support for legacy SMB
164 session setup needed for OS/2 and older servers such as Windows 95 and 98.
165 Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
166 so we can do search (ls etc.) to OS/2. Do not send NTCreateX
167 or recent levels of FindFirst unless server says it supports NT SMBs
168 (instead use legacy equivalents from LANMAN dialect). Fix to allow
169 NTLMv2 authentication support (now can use stronger password hashing
170 on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
171 Allow override of global cifs security flags on mount via "sec=" option(s).
175 POSIX locking to servers which support CIFS POSIX Extensions
176 (disabled by default controlled by proc/fs/cifs/Experimental).
177 Handle conversion of long share names (especially Asian languages)
178 to Unicode during mount. Fix memory leak in sess struct on reconnect.
179 Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
180 cifs open which helps rare case when setpathinfo fails or server does
185 Fix slow oplock break when mounted to different servers at the same time and
186 the tids match and we try to find matching fid on wrong server. Fix read
187 looping when signing required by server (2.6.16 kernel only). Fix readdir
188 vs. rename race which could cause each to hang. Return . and .. even
189 if server does not. Allow searches to skip first three entries and
190 begin at any location. Fix oops in find_writeable_file.
194 Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
195 configure stronger authentication. Fix sfu symlinks so they can
196 be followed (not just recognized). Fix wraparound of bcc on
197 read responses when buffer size over 64K and also fix wrap of
198 max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
199 cifs_user_read and cifs_readpages (when EAGAIN on send of smb
200 on socket is returned over and over). Add POSIX (advisory) byte range
201 locking support (requires server with newest CIFS UNIX Extensions
202 to the protocol implemented). Slow down negprot slightly in port 139
203 RFC1001 case to give session_init time on buggy servers.
207 Use fsuid (fsgid) more consistently instead of uid (gid). Improve performance
208 of readpages by eliminating one extra memcpy. Allow update of file size
209 from remote server even if file is open for write as long as mount is
210 directio. Recognize share mode security and send NTLM encrypted password
211 on tree connect if share mode negotiated.
215 Defer close of a file handle slightly if pending writes depend on that handle
216 (this reduces the EBADF bad file handle errors that can be logged under heavy
217 stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
218 Fix SFU style symlinks and mknod needed for servers which do not support the
219 CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
220 dentries so files that the client sees as deleted but that later get created
221 on the server will be recognized. Add client side permission check on setattr.
222 Timeout stuck requests better (where server has never responded or sent corrupt
227 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
228 to be smaller at first (but increasing) so large write performance performance
229 over GigE is better. Do not hang thread on illegal byte range lock response
230 from Windows (Windows can send an RFC1001 size which does not match smb size) by
231 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
232 wsize and rsize can now be larger than negotiated buffer size if server
233 supports large readx/writex, even when directio mount flag not specified.
234 Write size will in many cases now be 16K instead of 4K which greatly helps
235 file copy performance on lightly loaded networks. Fix oops in dnotify
236 when experimental config flag enabled. Make cifsFYI more granular.
240 Fix readdir caching when unlink removes file in current search buffer,
241 and this is followed by a rewind search to just before the deleted entry.
242 Do not attempt to set ctime unless atime and/or mtime change requested
243 (most servers throw it away anyway). Fix length check of received smbs
244 to be more accurate. Fix big endian problem with mapchars mount option,
245 and with a field returned by statfs.
249 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
250 For these older servers, add option for passing netbios name of server in
251 on mount (servernetbiosname). Add suspend support for power management, to
252 avoid cifsd thread preventing software suspend from working.
253 Add mount option for disabling the default behavior of sending byte range lock
254 requests to the server (necessary for certain applications which break with
255 mandatory lock behavior such as Evolution), and also mount option for
256 requesting case insensitive matching for path based requests (requesting
257 case sensitive is the default).
261 Add writepage performance improvements. Fix path name conversions
262 for long filenames on mounts which were done with "mapchars" mount option
263 specified. Ensure multiplex ids do not collide. Fix case in which
264 rmmod can oops if done soon after last unmount. Fix truncated
265 search (readdir) output when resume filename was a long filename.
266 Fix filename conversion when mapchars mount option was specified and
267 filename was a long filename.
271 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
272 Do not oops if root user kills cifs oplock kernel thread or
273 kills the cifsd thread (NB: killing the cifs kernel threads is not
274 recommended, unmount and rmmod cifs will kill them when they are
275 no longer needed). Fix readdir to ASCII servers (ie older servers
276 which do not support Unicode) and also require asterisk.
277 Fix out of memory case in which data could be written one page
278 off in the page cache.
282 Fix caching problem, in which readdir of directory containing a file
283 which was cached could cause the file's time stamp to be updated
284 without invalidating the readahead data (so we could get stale
285 file data on the client for that file even as the server copy changed).
286 Cleanup response processing so cifsd can not loop when abnormally
292 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
293 transact response for an SMB request and search entry split across two frames.
294 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
295 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
296 unless server explicitly claims to support them in CIFS Unix extensions
297 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
298 different users from the same client to the same server. Fix oops in
299 cifs_close. Add mount option for remapping reserved characters in
300 filenames (also allow recognizing files with created by SFU which have any
301 of these seven reserved characters, except backslash, to be recognized).
302 Fix invalid transact2 message (we were sometimes trying to interpret
303 oplock breaks as SMB responses). Add ioctl for checking that the
304 current uid matches the uid of the mounter (needed by umount.cifs).
305 Reduce the number of large buffer allocations in cifs response processing
306 (significantly reduces memory pressure under heavy stress with multiple
307 processes accessing the same server at the same time).
311 Fix updates of DOS attributes and time fields so that files on NT4 servers
312 do not get marked delete on close. Display sizes of cifs buffer pools in
313 cifs stats. Fix oops in unmount when cifsd thread being killed by
314 shutdown. Add generic readv/writev and aio support. Report inode numbers
315 consistently in readdir and lookup (when serverino mount option is
316 specified use the inode number that the server reports - for both lookup
317 and readdir, otherwise by default the locally generated inode number is used
318 for inodes created in either path since servers are not always able to
319 provide unique inode numbers when exporting multiple volumes from under one
324 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
325 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
326 (mostly affects NT4 servers) by retry with handle based network operation.
327 Add new POSIX Query FS Info for returning statfs info more accurately.
328 Handle passwords with multiple commas in them.
332 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
333 Fix capabilities flags for large readx so as to allow reads larger than 64K.
337 Add module init parm for large SMB buffer size (to allow it to be changed
338 from its default of 16K) which is especially useful for large file copy
339 when mounting with the directio mount option. Fix oops after
340 returning from mount when experimental ExtendedSecurity enabled and
341 SpnegoNegotiated returning invalid error. Fix case to retry better when
342 peek returns from 1 to 3 bytes on socket which should have more data.
343 Fixed path based calls (such as cifs lookup) to handle path names
344 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
345 from Samba server to DC (Samba required dummy LM password).
349 Turn off DNOTIFY (directory change notification support) by default
350 (unless built with the experimental flag) to fix hang with KDE
351 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
352 waiting on an SMB response) in SendReceive when session dies but
353 reconnects quickly from another task. Add module init parms for
354 minimum number of large and small network buffers in the buffer pools,
355 and for the maximum number of simultaneous requests.
359 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
360 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
361 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
362 improperly zeroed buffer in CIFS Unix extensions set times call.
366 Fix internationalization problem in cifs readdir with filenames that map to
367 longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
368 for readdir to netapp servers. Fix search rewind (seek into readdir to return
369 non-consecutive entries). Do not do readdir when server negotiates
370 buffer size to small to fit filename. Add support for reading POSIX ACLs from
371 the server (add also acl and noacl mount options).
375 Optionally allow using server side inode numbers, rather than client generated
376 ones by specifying mount option "serverino" - this is required for some apps
377 to work which double check hardlinked files and have persistent inode numbers.
381 Multiple bigendian fixes. On little endian systems (for reconnect after
382 network failure) fix tcp session reconnect code so we do not try first
383 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
384 as directories rather than symlinks because we can do follow link on them.
388 Add config option to enable XATTR (extended attribute) support, mapping
389 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
390 minor fixes pointed out by the Stanford SWAT checker (mostly missing
391 or out of order NULL pointer checks in little used error paths).
395 Add new mount parm to control whether mode check (generic_permission) is done
396 on the client. If Unix extensions are enabled and the uids on the client
397 and server do not match, client permission checks are meaningless on
398 server uids that do not exist on the client (this does not affect the
399 normal ACL check which occurs on the server). Fix default uid
400 on mknod to match create and mkdir. Add optional mount parm to allow
401 override of the default uid behavior (in which the server sets the uid
402 and gid of newly created files). Normally for network filesystem mounts
403 user want the server to set the uid/gid on newly created files (rather than
404 using uid of the client processes you would in a local filesystem).
408 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
409 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
410 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
411 (block/char/fifo) properly. Remove spurious mount warning log entry when
412 credentials passed as mount argument. Set major/minor device number in
413 inode for block and char devices when unix extensions enabled.
417 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
418 amounts of return data. Properly limit requests to MAX_REQ (50
419 is the usual maximum active multiplex SMB/CIFS requests per server).
420 Do not kill cifsd (and thus hurt the other SMB session) when more than one
421 session to the same server (but with different userids) exists and one
422 of the two user's smb sessions is being removed while leaving the other.
423 Do not loop reconnecting in cifsd demultiplex thread when admin
424 kills the thread without going through unmount.
428 Do not rename hardlinked files (since that should be a noop). Flush
429 cached write behind data when reopening a file after session abend,
430 except when already in write. Grab per socket sem during reconnect
431 to avoid oops in sendmsg if overlapping with reconnect. Do not
432 reset cached inode file size on readdir for files open for write on
438 Update number of blocks in file so du command is happier (in Linux a fake
439 blocksize of 512 is required for calculating number of blocks in inode).
440 Fix prepare write of partial pages to read in data from server if possible.
441 Fix race on tcpStatus field between unmount and reconnection code, causing
442 cifsd process sometimes to hang around forever. Improve out of memory
443 checks in cifs_filldir
447 Fix incorrect file size in file handle based setattr on big endian hardware.
448 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
449 and closing file structs in writepage/partialpagewrite. Add statistics
450 for each mounted share (new menuconfig option). Fix endianness problem in
451 volume information displayed in /proc/fs/cifs/DebugData (only affects
452 affects big endian architectures). Prevent renames while constructing
453 path names for open, mkdir and rmdir.
457 Change to mempools for alloc smb request buffers and multiplex structs
458 to better handle low memory problems (and potential deadlocks).
462 Fix incomplete listings of large directories on Samba servers when Unix
463 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
464 rename deadlock when writing out dirty pages at same time.
468 Fix open of files in which O_CREATE can cause the mode to change in
469 some cases. Fix case in which retry of write overlaps file close.
470 Fix PPC64 build error. Reduce excessive stack usage in smb password
471 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
475 Fixes for large file copy, signal handling, socket retry, buffer
476 allocation and low memory situations.
480 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
481 also now allowing support for specifying client netbiosname. NT4 support added.
485 Fix reconnection (and certain failed mounts) to properly wake up the
486 blocked users thread so it does not seem hung (in some cases was blocked
487 until the cifs receive timeout expired). Fix spurious error logging
488 to kernel log when application with open network files killed.
492 Fix /proc/fs module unload warning message (that could be logged
493 to the kernel log). Fix intermittent failure in connectathon
494 test7 (hardlink count not immediately refreshed in case in which
495 inode metadata can be incorrectly kept cached when time near zero)
499 Allow file_mode and dir_mode (specified at mount time) to be enforced
500 locally (the server already enforced its own ACLs too) for servers
501 that do not report the correct mode (do not support the
502 CIFS Unix Extensions).
506 Fix some small memory leaks in some unmount error paths. Fix major leak
507 of cache pages in readpages causing multiple read oriented stress
508 testcases (including fsx, and even large file copy) to fail over time.
512 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
513 This allows files that differ only in case and improves performance of file
514 creation and file open to such servers. Fix semaphore conflict which causes
515 slow delete of open file to Samba (which unfortunately can cause an oplock
516 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
520 fixes to cifs_readpages for fsx test case
524 Fix caching data integrity bug when extending file size especially when no
525 oplock on file. Fix spurious logging of valid already parsed mount options
526 that are parsed outside of the cifs vfs such as nosuid.
531 Connect to server when port number override not specified, and tcp port
532 unitialized. Reset search to restart at correct file when kernel routine
533 filldir returns error during large directory searches (readdir).
537 Fix caching problem when files opened by multiple clients in which
538 page cache could contain stale data, and write through did
539 not occur often enough while file was still open when read ahead
540 (read oplock) not allowed. Treat "sep=" when first mount option
541 as an override of comma as the default separator between mount
546 Allow passwords longer than 16 bytes. Allow null password string.
550 Gracefully clean up failed mounts when attempting to mount to servers such as
551 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
552 embedded commas in mount parsing of passwords.
556 Invalidate local inode cached pages on oplock break and when last file
557 instance is closed so that the client does not continue using stale local
558 copy rather than later modified server copy of file. Do not reconnect
559 when server drops the tcp session prematurely before negotiate
560 protocol response. Fix oops in reopen_file when dentry freed. Allow
561 the support for CIFS Unix Extensions to be disabled via proc interface.
565 Fix hang in commit_write during reconnection of open files under heavy load.
566 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
567 which also fixes any possible races when cifs signatures are enabled in SMBs
568 being sent out of signature sequence number order.
572 Fix byte range locking bug (endian problem) causing bad offset and
577 Fix oops (in send_sig) caused by CIFS unmount code trying to
578 wake up the demultiplex thread after it had exited. Do not log
579 error on harmless oplock release of closed handle.
583 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
584 Fix problem reconnecting secondary mounts to same server after session
585 failure. Fix invalid dentry - race in mkdir when directory gets created
586 by another client between the lookup and mkdir.
590 Fix to list processing in reopen_files. Fix reconnection when server hung
591 but tcpip session still alive. Set proper timeout on socket read.
595 Add missing mount options including iocharset. SMP fixes in write and open.
596 Fix errors in reconnecting after TCP session failure. Fix module unloading
597 of default nls codepage
601 Active smb transactions should never go negative (fix double FreeXid). Fix
602 list processing in file routines. Check return code on kmalloc in open.
603 Fix spinlock usage for SMP.
607 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
608 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
609 on create hard link when server does not support them.
613 Fix scheduling while atomic error in getting inode info on newly created file.
614 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
618 Fix oops on write to dead tcp session. Remove error log write for case when file open
619 O_CREAT but not O_EXCL
623 Fix non-POSIX behavior on rename of open file and delete of open file by taking
624 advantage of trans2 SetFileInfo rename facility if available on target server.
625 Retry on ENOSPC and EAGAIN socket errors.
629 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
630 allocation size miscalculation. After oplock token lost do not read through
635 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
639 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
640 during auto reconnection to server after server recovered from failure.
644 Finish support for Linux 2.5 open/create changes, which removes the
645 redundant NTCreate/QPathInfo/close that was sent during file create.
646 Enable oplock by default. Enable packet signing by default (needed to
647 access many recent Windows servers)
651 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
652 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
653 we will choose a cifs user session (smb uid) that better matches the local
654 uid if a) the mount uid does not match the current uid and b) we have another
655 session to the same server (ip address) for a different mount which
656 matches the current local uid.
660 Add support for mknod of block or character devices. Fix oplock
661 code (distributed caching) to properly send response to oplock
666 Finish up CIFS packet digital signing for the default
667 NTLM security case. This should help Windows 2003
668 network interoperability since it is common for
669 packet signing to be required now. Fix statfs (stat -f)
670 which recently started returning errors due to
671 invalid value (-1 instead of 0) being set in the
672 struct kstatfs f_ffiles field.
676 Fix oops on stopping oplock thread when removing cifs when
681 Fix mount options for ro (readonly), uid, gid and file and directory mode.
685 Fix errors displayed on failed mounts to be more understandable.
686 Fixed various incorrect or misleading smb to posix error code mappings.
690 Fix display of NTFS DFS junctions to display as symlinks.
691 They are the network equivalent. Fix oops in
692 cifs_partialpagewrite caused by missing spinlock protection
693 of openfile linked list. Allow writebehind caching errors to
694 be returned to the application at file close.
698 Clean up options displayed in /proc/mounts by show_options to
699 be more consistent with other filesystems.
703 Fix delete of readonly file to Windows servers. Reflect
704 presence or absence of read only dos attribute in mode
705 bits for servers that do not support CIFS Unix extensions.
706 Fix shortened results on readdir of large directories to
707 servers supporting CIFS Unix extensions (caused by
708 incorrect resume key).
712 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
716 unload nls if mount fails.
720 Add resume key support to search (readdir) code to workaround
721 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
722 allows disabling caching of attribute information for
727 Add more oplock handling (distributed caching code). Remove
728 dead code. Remove excessive stack space utilization from
733 Fix oops in get dfs referral (triggered when null path sent in to
734 mount). Add support for overriding rsize at mount time.
738 Fix buffer overrun in readdir which caused intermittent kernel oopses.
739 Fix writepage code to release kmap on write data. Allow "-ip=" new
740 mount option to be passed in on parameter distinct from the first part
741 (server name portion of) the UNC name. Allow override of the
742 tcp port of the target server via new mount option "-port="
746 Fix search handle leak on rewind. Fix setuid and gid so that they are
747 reflected in the local inode immediately. Cleanup of whitespace
748 to make 2.4 and 2.5 versions more consistent.
753 Fix signal sending so that captive thread (cifsd) exits on umount
754 (which was causing the warning in kmem_cache_free of the request buffers
755 at rmmod time). This had broken as a sideeffect of the recent global
756 kernel change to daemonize. Fix memory leak in readdir code which
757 showed up in "ls -R" (and applications that did search rewinding).
761 Reconnect tids and fids after session reconnection (still do not
762 reconnect byte range locks though). Fix problem caching
763 lookup information for directory inodes, improving performance,
764 especially in deep directory trees. Fix various build warnings.
768 Finish fixes to commit write for caching/readahead consistency. fsx
769 now works to Samba servers. Fix oops caused when readahead
770 was interrupted by a signal.
774 Fix data corruption (in partial page after truncate) that caused fsx to
775 fail to Windows servers. Cleaned up some extraneous error logging in
776 common error paths. Add generic sendfile support.
780 Fix memory leak in AllocMidQEntry.
781 Finish reconnection logic, so connection with server can be dropped
782 (or server rebooted) and the cifs client will reconnect.
786 Fix temporary socket leak when bad userid or password specified
787 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
788 over 16K to allow negotiation of up to Samba and Windows server default read
789 sizes. Add support for readpages
793 Fix oops when username not passed in on mount. Extensive fixes and improvements
794 to error logging (strip redundant newlines, change debug macros to ensure newline
795 passed in and to be more consistent). Fix writepage wrong file handle problem,
796 a readonly file handle could be incorrectly used to attempt to write out
797 file updates through the page cache to multiply open files. This could cause
798 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
799 shares to the same Windows server when using different usernames
800 (doing this to Samba servers worked but Windows was rejecting it) - now it is
801 possible to use different userids when connecting to the same server from a
802 Linux client. Fix oops when treeDisconnect called during unmount on
803 previously freed socket.
807 Fix oops in readpages caused by not setting address space operations in inode in
812 Includes support for deleting of open files and renaming over existing files (per POSIX
813 requirement). Add readlink support for Windows junction points (directory symlinks).
817 Changed read and write to go through pagecache. Added additional address space operations.
818 Memory mapped operations now working.
822 Added writepage code for additional memory mapping support. Fixed leak in xids causing
823 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
824 every stat call. Additional formatting cleanup.
828 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
832 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
833 Also included a modified version of his fix to protect global list manipulation of
834 the smb session and tree connection and mid related global variables.
838 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
839 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
840 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
844 More stylistic updates to better match kernel style. Add additional statistics
845 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
846 and CIFS Packet Signing enablement.
850 Replace call to sleep_on with safer wait_on_event.
851 Make stylistic changes to better match kernel style recommendations.
852 Remove most typedef usage (except for the PDUs themselves).
856 Update mount so the -unc mount option is no longer required (the ip address can be specified
857 in a UNC style device name. Implementation of readpage/writepage started.
861 Fix intermittent problem with incorrect smb header checking on badly
862 fragmented tcp responses
866 Fixes to setting of allocation size and file size.
870 Various 2.5.38 fixes. Now works on 2.5.38
874 Prepare for 2.5 kernel merge. Remove ifdefs.
878 Socket buffer management fixes. Fix dual free.
882 Various big endian fixes for hardlinks and symlinks and also for dfs.
886 Various big endian fixes for servers with Unix extensions such as Samba
890 Various FindNext fixes for incorrect filenames on large directory searches on big endian
891 clients. basic posix file i/o tests now work on big endian machines, not just le
895 SessionSetup and NegotiateProtocol now work from Big Endian machines.
896 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
897 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
901 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
902 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
906 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
907 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
908 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
909 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
913 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
914 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
918 Rewrote much of connection and mount/unmount logic to handle bugs with
919 multiple uses to same share, multiple users to same server etc.
923 Fixed major problem with dentry corruption (missing call to dput)
927 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
928 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
929 although corresponding function not fully implemented in the vfs yet
933 Fixed dentry caching bug, misc. cleanup
937 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
938 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
939 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
943 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
944 and tested against Samba 2.2.5
949 1) Fixed lockrange to be correct (it was one byte too short)
951 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
952 show range as locked when there is a conflict with an existing lock.
954 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
955 in most cases. Eventually will offer optional ability to query server for the correct perms.
957 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
958 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
961 4) Fixed error logging of valid mount options
963 5) Removed logging of password field.
965 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
966 and cleaned them up and made them more consistent with other cifs functions.
968 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
969 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
970 nor is the symlink support using the Unix extensions
972 8) Started adding the readlink and follow_link code
projects / linux-2.6 / blob