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  1. Version 1.58
  2. ------------
  3. Guard against buffer overruns in various UCS-2 to UTF-8 string conversions
  4. when the UTF-8 string is composed of unusually long (more than 4 byte) converted
  5. characters. Add support for mounting root of a share which redirects immediately
  6. to DFS target. Convert string conversion functions from Unicode to more
  7. accurately mark string length before allocating memory (which may help the
  8. rare cases where a UTF-8 string is much larger than the UCS2 string that
  9. we converted from). Fix endianness of the vcnum field used during
  10. session setup to distinguish multiple mounts to same server from different
  11. userids.
  12. Version 1.57
  13. ------------
  14. Improve support for multiple security contexts to the same server. We
  15. used to use the same "vcnumber" for all connections which could cause
  16. the server to treat subsequent connections, especially those that
  17. are authenticated as guest, as reconnections, invalidating the earlier
  18. user's smb session. This fix allows cifs to mount multiple times to the
  19. same server with different userids without risking invalidating earlier
  20. established security contexts. fsync now sends SMB Flush operation
  21. to better ensure that we wait for server to write all of the data to
  22. server disk (not just write it over the network). Add new mount
  23. parameter to allow user to disable sending the (slow) SMB flush on
  24. fsync if desired (fsync still flushes all cached write data to the server).
  25. Posix file open support added (turned off after one attempt if server
  26. fails to support it properly, as with Samba server versions prior to 3.3.2)
  27. Fix "redzone overwritten" bug in cifs_put_tcon (CIFSTcon may allocate too
  28. little memory for the "nativeFileSystem" field returned by the server
  29. during mount). Endian convert inode numbers if necessary (makes it easier
  30. to compare inode numbers on network files from big endian systems).
  31. Version 1.56
  32. ------------
  33. Add "forcemandatorylock" mount option to allow user to use mandatory
  34. rather than posix (advisory) byte range locks, even though server would
  35. support posix byte range locks. Fix query of root inode when prefixpath
  36. specified and user does not have access to query information about the
  37. top of the share. Fix problem in 2.6.28 resolving DFS paths to
  38. Samba servers (worked to Windows). Fix rmdir so that pending search
  39. (readdir) requests do not get invalid results which include the now
  40. removed directory. Fix oops in cifs_dfs_ref.c when prefixpath is not reachable
  41. when using DFS. Add better file create support to servers which support
  42. the CIFS POSIX protocol extensions (this adds support for new flags
  43. on create, and improves semantics for write of locked ranges).
  44. Version 1.55
  45. ------------
  46. Various fixes to make delete of open files behavior more predictable
  47. (when delete of an open file fails we mark the file as "delete-on-close"
  48. in a way that more servers accept, but only if we can first rename the
  49. file to a temporary name). Add experimental support for more safely
  50. handling fcntl(F_SETLEASE). Convert cifs to using blocking tcp
  51. sends, and also let tcp autotune the socket send and receive buffers.
  52. This reduces the number of EAGAIN errors returned by TCP/IP in
  53. high stress workloads (and the number of retries on socket writes
  54. when sending large SMBWriteX requests). Fix case in which a portion of
  55. data can in some cases not get written to the file on the server before the
  56. file is closed. Fix DFS parsing to properly handle path consumed field,
  57. and to handle certain codepage conversions better. Fix mount and
  58. umount race that can cause oops in mount or umount or reconnect.
  59. Version 1.54
  60. ------------
  61. Fix premature write failure on congested networks (we would give up
  62. on EAGAIN from the socket too quickly on large writes).
  63. Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
  64. Fix endian problems in acl (mode from/to cifs acl) on bigendian
  65. architectures. Fix problems with preserving timestamps on copying open
  66. files (e.g. "cp -a") to Windows servers. For mkdir and create honor setgid bit
  67. on parent directory when server supports Unix Extensions but not POSIX
  68. create. Update cifs.upcall version to handle new Kerberos sec flags
  69. (this requires update of cifs.upcall program from Samba). Fix memory leak
  70. on dns_upcall (resolving DFS referralls). Fix plain text password
  71. authentication (requires setting SecurityFlags to 0x30030 to enable
  72. lanman and plain text though). Fix writes to be at correct offset when
  73. file is open with O_APPEND and file is on a directio (forcediretio) mount.
  74. Fix bug in rewinding readdir directory searches. Add nodfs mount option.
  75. Version 1.53
  76. ------------
  77. DFS support added (Microsoft Distributed File System client support needed
  78. for referrals which enable a hierarchical name space among servers).
  79. Disable temporary caching of mode bits to servers which do not support
  80. storing of mode (e.g. Windows servers, when client mounts without cifsacl
  81. mount option) and add new "dynperm" mount option to enable temporary caching
  82. of mode (enable old behavior). Fix hang on mount caused when server crashes
  83. tcp session during negotiate protocol.
  84. Version 1.52
  85. ------------
  86. Fix oops on second mount to server when null auth is used.
  87. Enable experimental Kerberos support. Return writebehind errors on flush
  88. and sync so that events like out of disk space get reported properly on
  89. cached files. Fix setxattr failure to certain Samba versions. Fix mount
  90. of second share to disconnected server session (autoreconnect on this).
  91. Add ability to modify cifs acls for handling chmod (when mounted with
  92. cifsacl flag). Fix prefixpath path separator so we can handle mounts
  93. with prefixpaths longer than one directory (one path component) when
  94. mounted to Windows servers. Fix slow file open when cifsacl
  95. enabled. Fix memory leak in FindNext when the SMB call returns -EBADF.
  96. Version 1.51
  97. ------------
  98. Fix memory leak in statfs when mounted to very old servers (e.g.
  99. Windows 9x). Add new feature "POSIX open" which allows servers
  100. which support the current POSIX Extensions to provide better semantics
  101. (e.g. delete for open files opened with posix open). Take into
  102. account umask on posix mkdir not just older style mkdir. Add
  103. ability to mount to IPC$ share (which allows CIFS named pipes to be
  104. opened, read and written as if they were files). When 1st tree
  105. connect fails (e.g. due to signing negotiation failure) fix
  106. leak that causes cifsd not to stop and rmmod to fail to cleanup
  107. cifs_request_buffers pool. Fix problem with POSIX Open/Mkdir on
  108. bigendian architectures. Fix possible memory corruption when
  109. EAGAIN returned on kern_recvmsg. Return better error if server
  110. requires packet signing but client has disabled it. When mounted
  111. with cifsacl mount option - mode bits are approximated based
  112. on the contents of the ACL of the file or directory. When cifs
  113. mount helper is missing convert make sure that UNC name
  114. has backslash (not forward slash) between ip address of server
  115. and the share name.
  116. Version 1.50
  117. ------------
  118. Fix NTLMv2 signing. NFS server mounted over cifs works (if cifs mount is
  119. done with "serverino" mount option). Add support for POSIX Unlink
  120. (helps with certain sharing violation cases when server such as
  121. Samba supports newer POSIX CIFS Protocol Extensions). Add "nounix"
  122. mount option to allow disabling the CIFS Unix Extensions for just
  123. that mount. Fix hang on spinlock in find_writable_file (race when
  124. reopening file after session crash). Byte range unlock request to
  125. windows server could unlock more bytes (on server copy of file)
  126. than intended if start of unlock request is well before start of
  127. a previous byte range lock that we issued.
  128. Version 1.49
  129. ------------
  130. IPv6 support. Enable ipv6 addresses to be passed on mount (put the ipv6
  131. address after the "ip=" mount option, at least until mount.cifs is fixed to
  132. handle DNS host to ipv6 name translation). Accept override of uid or gid
  133. on mount even when Unix Extensions are negotiated (it used to be ignored
  134. when Unix Extensions were ignored). This allows users to override the
  135. default uid and gid for files when they are certain that the uids or
  136. gids on the server do not match those of the client. Make "sec=none"
  137. mount override username (so that null user connection is attempted)
  138. to match what documentation said. Support for very large reads, over 127K,
  139. available to some newer servers (such as Samba 3.0.26 and later but
  140. note that it also requires setting CIFSMaxBufSize at module install
  141. time to a larger value which may hurt performance in some cases).
  142. Make sign option force signing (or fail if server does not support it).
  143. Version 1.48
  144. ------------
  145. Fix mtime bouncing around from local idea of last write times to remote time.
  146. Fix hang (in i_size_read) when simultaneous size update of same remote file
  147. on smp system corrupts sequence number. Do not reread unnecessarily partial page
  148. (which we are about to overwrite anyway) when writing out file opened rw.
  149. When DOS attribute of file on non-Unix server's file changes on the server side
  150. from read-only back to read-write, reflect this change in default file mode
  151. (we had been leaving a file's mode read-only until the inode were reloaded).
  152. Allow setting of attribute back to ATTR_NORMAL (removing readonly dos attribute
  153. when archive dos attribute not set and we are changing mode back to writeable
  154. on server which does not support the Unix Extensions). Remove read only dos
  155. attribute on chmod when adding any write permission (ie on any of
  156. user/group/other (not all of user/group/other ie 0222) when
  157. mounted to windows. Add support for POSIX MkDir (slight performance
  158. enhancement and eliminates the network race between the mkdir and set
  159. path info of the mode).
  160. Version 1.47
  161. ------------
  162. Fix oops in list_del during mount caused by unaligned string.
  163. Fix file corruption which could occur on some large file
  164. copies caused by writepages page i/o completion bug.
  165. Seek to SEEK_END forces check for update of file size for non-cached
  166. files. Allow file size to be updated on remote extend of locally open,
  167. non-cached file. Fix reconnect to newer Samba servers (or other servers
  168. which support the CIFS Unix/POSIX extensions) so that we again tell the
  169. server the Unix/POSIX cifs capabilities which we support (SetFSInfo).
  170. Add experimental support for new POSIX Open/Mkdir (which returns
  171. stat information on the open, and allows setting the mode).
  172. Version 1.46
  173. ------------
  174. Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
  175. Allow null user to be specified on mount ("username="). Do not return
  176. EINVAL on readdir when filldir fails due to overwritten blocksize
  177. (fixes FC problem). Return error in rename 2nd attempt retry (ie report
  178. if rename by handle also fails, after rename by path fails, we were
  179. not reporting whether the retry worked or not). Fix NTLMv2 to
  180. work to Windows servers (mount with option "sec=ntlmv2").
  181. Version 1.45
  182. ------------
  183. Do not time out lockw calls when using posix extensions. Do not
  184. time out requests if server still responding reasonably fast
  185. on requests on other threads. Improve POSIX locking emulation,
  186. (lock cancel now works, and unlock of merged range works even
  187. to Windows servers now). Fix oops on mount to lanman servers
  188. (win9x, os/2 etc.) when null password. Do not send listxattr
  189. (SMB to query all EAs) if nouser_xattr specified. Fix SE Linux
  190. problem (instantiate inodes/dentries in right order for readdir).
  191. Version 1.44
  192. ------------
  193. Rewritten sessionsetup support, including support for legacy SMB
  194. session setup needed for OS/2 and older servers such as Windows 95 and 98.
  195. Fix oops on ls to OS/2 servers. Add support for level 1 FindFirst
  196. so we can do search (ls etc.) to OS/2. Do not send NTCreateX
  197. or recent levels of FindFirst unless server says it supports NT SMBs
  198. (instead use legacy equivalents from LANMAN dialect). Fix to allow
  199. NTLMv2 authentication support (now can use stronger password hashing
  200. on mount if corresponding /proc/fs/cifs/SecurityFlags is set (0x4004).
  201. Allow override of global cifs security flags on mount via "sec=" option(s).
  202. Version 1.43
  203. ------------
  204. POSIX locking to servers which support CIFS POSIX Extensions
  205. (disabled by default controlled by proc/fs/cifs/Experimental).
  206. Handle conversion of long share names (especially Asian languages)
  207. to Unicode during mount. Fix memory leak in sess struct on reconnect.
  208. Fix rare oops after acpi suspend. Fix O_TRUNC opens to overwrite on
  209. cifs open which helps rare case when setpathinfo fails or server does
  210. not support it.
  211. Version 1.42
  212. ------------
  213. Fix slow oplock break when mounted to different servers at the same time and
  214. the tids match and we try to find matching fid on wrong server. Fix read
  215. looping when signing required by server (2.6.16 kernel only). Fix readdir
  216. vs. rename race which could cause each to hang. Return . and .. even
  217. if server does not. Allow searches to skip first three entries and
  218. begin at any location. Fix oops in find_writeable_file.
  219. Version 1.41
  220. ------------
  221. Fix NTLMv2 security (can be enabled in /proc/fs/cifs) so customers can
  222. configure stronger authentication. Fix sfu symlinks so they can
  223. be followed (not just recognized). Fix wraparound of bcc on
  224. read responses when buffer size over 64K and also fix wrap of
  225. max smb buffer size when CIFSMaxBufSize over 64K. Fix oops in
  226. cifs_user_read and cifs_readpages (when EAGAIN on send of smb
  227. on socket is returned over and over). Add POSIX (advisory) byte range
  228. locking support (requires server with newest CIFS UNIX Extensions
  229. to the protocol implemented). Slow down negprot slightly in port 139
  230. RFC1001 case to give session_init time on buggy servers.
  231. Version 1.40
  232. ------------
  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.
  238. Version 1.39
  239. ------------
  240. Defer close of a file handle slightly if pending writes depend on that handle
  241. (this reduces the EBADF bad file handle errors that can be logged under heavy
  242. stress on writes). Modify cifs Kconfig options to expose CONFIG_CIFS_STATS2
  243. Fix SFU style symlinks and mknod needed for servers which do not support the
  244. CIFS Unix Extensions. Fix setfacl/getfacl on bigendian. Timeout negative
  245. dentries so files that the client sees as deleted but that later get created
  246. on the server will be recognized. Add client side permission check on setattr.
  247. Timeout stuck requests better (where server has never responded or sent corrupt
  248. responses)
  249. Version 1.38
  250. ------------
  251. Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
  252. to be smaller at first (but increasing) so large write performance performance
  253. over GigE is better. Do not hang thread on illegal byte range lock response
  254. from Windows (Windows can send an RFC1001 size which does not match smb size) by
  255. allowing an SMBs TCP length to be up to a few bytes longer than it should be.
  256. wsize and rsize can now be larger than negotiated buffer size if server
  257. supports large readx/writex, even when directio mount flag not specified.
  258. Write size will in many cases now be 16K instead of 4K which greatly helps
  259. file copy performance on lightly loaded networks. Fix oops in dnotify
  260. when experimental config flag enabled. Make cifsFYI more granular.
  261. Version 1.37
  262. ------------
  263. Fix readdir caching when unlink removes file in current search buffer,
  264. and this is followed by a rewind search to just before the deleted entry.
  265. Do not attempt to set ctime unless atime and/or mtime change requested
  266. (most servers throw it away anyway). Fix length check of received smbs
  267. to be more accurate. Fix big endian problem with mapchars mount option,
  268. and with a field returned by statfs.
  269. Version 1.36
  270. ------------
  271. Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
  272. For these older servers, add option for passing netbios name of server in
  273. on mount (servernetbiosname). Add suspend support for power management, to
  274. avoid cifsd thread preventing software suspend from working.
  275. Add mount option for disabling the default behavior of sending byte range lock
  276. requests to the server (necessary for certain applications which break with
  277. mandatory lock behavior such as Evolution), and also mount option for
  278. requesting case insensitive matching for path based requests (requesting
  279. case sensitive is the default).
  280. Version 1.35
  281. ------------
  282. Add writepage performance improvements. Fix path name conversions
  283. for long filenames on mounts which were done with "mapchars" mount option
  284. specified. Ensure multiplex ids do not collide. Fix case in which
  285. rmmod can oops if done soon after last unmount. Fix truncated
  286. search (readdir) output when resume filename was a long filename.
  287. Fix filename conversion when mapchars mount option was specified and
  288. filename was a long filename.
  289. Version 1.34
  290. ------------
  291. Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
  292. Do not oops if root user kills cifs oplock kernel thread or
  293. kills the cifsd thread (NB: killing the cifs kernel threads is not
  294. recommended, unmount and rmmod cifs will kill them when they are
  295. no longer needed). Fix readdir to ASCII servers (ie older servers
  296. which do not support Unicode) and also require asterisk.
  297. Fix out of memory case in which data could be written one page
  298. off in the page cache.
  299. Version 1.33
  300. ------------
  301. Fix caching problem, in which readdir of directory containing a file
  302. which was cached could cause the file's time stamp to be updated
  303. without invalidating the readahead data (so we could get stale
  304. file data on the client for that file even as the server copy changed).
  305. Cleanup response processing so cifsd can not loop when abnormally
  306. terminated.
  307. Version 1.32
  308. ------------
  309. Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
  310. transact response for an SMB request and search entry split across two frames.
  311. Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
  312. as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
  313. unless server explicitly claims to support them in CIFS Unix extensions
  314. POSIX ACL capability bit. Fix packet signing when multiuser mounting with
  315. different users from the same client to the same server. Fix oops in
  316. cifs_close. Add mount option for remapping reserved characters in
  317. filenames (also allow recognizing files with created by SFU which have any
  318. of these seven reserved characters, except backslash, to be recognized).
  319. Fix invalid transact2 message (we were sometimes trying to interpret
  320. oplock breaks as SMB responses). Add ioctl for checking that the
  321. current uid matches the uid of the mounter (needed by umount.cifs).
  322. Reduce the number of large buffer allocations in cifs response processing
  323. (significantly reduces memory pressure under heavy stress with multiple
  324. processes accessing the same server at the same time).
  325. Version 1.31
  326. ------------
  327. Fix updates of DOS attributes and time fields so that files on NT4 servers
  328. do not get marked delete on close. Display sizes of cifs buffer pools in
  329. cifs stats. Fix oops in unmount when cifsd thread being killed by
  330. shutdown. Add generic readv/writev and aio support. Report inode numbers
  331. consistently in readdir and lookup (when serverino mount option is
  332. specified use the inode number that the server reports - for both lookup
  333. and readdir, otherwise by default the locally generated inode number is used
  334. for inodes created in either path since servers are not always able to
  335. provide unique inode numbers when exporting multiple volumes from under one
  336. sharename).
  337. Version 1.30
  338. ------------
  339. Allow new nouser_xattr mount parm to disable xattr support for user namespace.
  340. Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
  341. (mostly affects NT4 servers) by retry with handle based network operation.
  342. Add new POSIX Query FS Info for returning statfs info more accurately.
  343. Handle passwords with multiple commas in them.
  344. Version 1.29
  345. ------------
  346. Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
  347. Fix capabilities flags for large readx so as to allow reads larger than 64K.
  348. Version 1.28
  349. ------------
  350. Add module init parm for large SMB buffer size (to allow it to be changed
  351. from its default of 16K) which is especially useful for large file copy
  352. when mounting with the directio mount option. Fix oops after
  353. returning from mount when experimental ExtendedSecurity enabled and
  354. SpnegoNegotiated returning invalid error. Fix case to retry better when
  355. peek returns from 1 to 3 bytes on socket which should have more data.
  356. Fixed path based calls (such as cifs lookup) to handle path names
  357. longer than 530 (now can handle PATH_MAX). Fix pass through authentication
  358. from Samba server to DC (Samba required dummy LM password).
  359. Version 1.27
  360. ------------
  361. Turn off DNOTIFY (directory change notification support) by default
  362. (unless built with the experimental flag) to fix hang with KDE
  363. file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
  364. waiting on an SMB response) in SendReceive when session dies but
  365. reconnects quickly from another task. Add module init parms for
  366. minimum number of large and small network buffers in the buffer pools,
  367. and for the maximum number of simultaneous requests.
  368. Version 1.26
  369. ------------
  370. Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
  371. and other POSIX CIFS compliant servers. Fix error mapping for getfacl
  372. to EOPNOTSUPP when server does not support posix acls on the wire. Fix
  373. improperly zeroed buffer in CIFS Unix extensions set times call.
  374. Version 1.25
  375. ------------
  376. Fix internationalization problem in cifs readdir with filenames that map to
  377. longer UTF-8 strings than the string on the wire was in Unicode. Add workaround
  378. for readdir to netapp servers. Fix search rewind (seek into readdir to return
  379. non-consecutive entries). Do not do readdir when server negotiates
  380. buffer size to small to fit filename. Add support for reading POSIX ACLs from
  381. the server (add also acl and noacl mount options).
  382. Version 1.24
  383. ------------
  384. Optionally allow using server side inode numbers, rather than client generated
  385. ones by specifying mount option "serverino" - this is required for some apps
  386. to work which double check hardlinked files and have persistent inode numbers.
  387. Version 1.23
  388. ------------
  389. Multiple bigendian fixes. On little endian systems (for reconnect after
  390. network failure) fix tcp session reconnect code so we do not try first
  391. to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
  392. as directories rather than symlinks because we can do follow link on them.
  393. Version 1.22
  394. ------------
  395. Add config option to enable XATTR (extended attribute) support, mapping
  396. xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
  397. minor fixes pointed out by the Stanford SWAT checker (mostly missing
  398. or out of order NULL pointer checks in little used error paths).
  399. Version 1.21
  400. ------------
  401. Add new mount parm to control whether mode check (generic_permission) is done
  402. on the client. If Unix extensions are enabled and the uids on the client
  403. and server do not match, client permission checks are meaningless on
  404. server uids that do not exist on the client (this does not affect the
  405. normal ACL check which occurs on the server). Fix default uid
  406. on mknod to match create and mkdir. Add optional mount parm to allow
  407. override of the default uid behavior (in which the server sets the uid
  408. and gid of newly created files). Normally for network filesystem mounts
  409. user want the server to set the uid/gid on newly created files (rather than
  410. using uid of the client processes you would in a local filesystem).
  411. Version 1.20
  412. ------------
  413. Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
  414. info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
  415. (in build_wildcard_path_from_dentry). Fix mknod to pass type field
  416. (block/char/fifo) properly. Remove spurious mount warning log entry when
  417. credentials passed as mount argument. Set major/minor device number in
  418. inode for block and char devices when unix extensions enabled.
  419. Version 1.19
  420. ------------
  421. Fix /proc/fs/cifs/Stats and DebugData display to handle larger
  422. amounts of return data. Properly limit requests to MAX_REQ (50
  423. is the usual maximum active multiplex SMB/CIFS requests per server).
  424. Do not kill cifsd (and thus hurt the other SMB session) when more than one
  425. session to the same server (but with different userids) exists and one
  426. of the two user's smb sessions is being removed while leaving the other.
  427. Do not loop reconnecting in cifsd demultiplex thread when admin
  428. kills the thread without going through unmount.
  429. Version 1.18
  430. ------------
  431. Do not rename hardlinked files (since that should be a noop). Flush
  432. cached write behind data when reopening a file after session abend,
  433. except when already in write. Grab per socket sem during reconnect
  434. to avoid oops in sendmsg if overlapping with reconnect. Do not
  435. reset cached inode file size on readdir for files open for write on
  436. client.
  437. Version 1.17
  438. ------------
  439. Update number of blocks in file so du command is happier (in Linux a fake
  440. blocksize of 512 is required for calculating number of blocks in inode).
  441. Fix prepare write of partial pages to read in data from server if possible.
  442. Fix race on tcpStatus field between unmount and reconnection code, causing
  443. cifsd process sometimes to hang around forever. Improve out of memory
  444. checks in cifs_filldir
  445. Version 1.16
  446. ------------
  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.
  454. Version 1.15
  455. ------------
  456. Change to mempools for alloc smb request buffers and multiplex structs
  457. to better handle low memory problems (and potential deadlocks).
  458. Version 1.14
  459. ------------
  460. Fix incomplete listings of large directories on Samba servers when Unix
  461. extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
  462. rename deadlock when writing out dirty pages at same time.
  463. Version 1.13
  464. ------------
  465. Fix open of files in which O_CREATE can cause the mode to change in
  466. some cases. Fix case in which retry of write overlaps file close.
  467. Fix PPC64 build error. Reduce excessive stack usage in smb password
  468. hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
  469. Version 1.12
  470. ------------
  471. Fixes for large file copy, signal handling, socket retry, buffer
  472. allocation and low memory situations.
  473. Version 1.11
  474. ------------
  475. Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
  476. also now allowing support for specifying client netbiosname. NT4 support added.
  477. Version 1.10
  478. ------------
  479. Fix reconnection (and certain failed mounts) to properly wake up the
  480. blocked users thread so it does not seem hung (in some cases was blocked
  481. until the cifs receive timeout expired). Fix spurious error logging
  482. to kernel log when application with open network files killed.
  483. Version 1.09
  484. ------------
  485. Fix /proc/fs module unload warning message (that could be logged
  486. to the kernel log). Fix intermittent failure in connectathon
  487. test7 (hardlink count not immediately refreshed in case in which
  488. inode metadata can be incorrectly kept cached when time near zero)
  489. Version 1.08
  490. ------------
  491. Allow file_mode and dir_mode (specified at mount time) to be enforced
  492. locally (the server already enforced its own ACLs too) for servers
  493. that do not report the correct mode (do not support the
  494. CIFS Unix Extensions).
  495. Version 1.07
  496. ------------
  497. Fix some small memory leaks in some unmount error paths. Fix major leak
  498. of cache pages in readpages causing multiple read oriented stress
  499. testcases (including fsx, and even large file copy) to fail over time.
  500. Version 1.06
  501. ------------
  502. Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
  503. This allows files that differ only in case and improves performance of file
  504. creation and file open to such servers. Fix semaphore conflict which causes
  505. slow delete of open file to Samba (which unfortunately can cause an oplock
  506. break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
  507. Version 1.05
  508. ------------
  509. fixes to cifs_readpages for fsx test case
  510. Version 1.04
  511. ------------
  512. Fix caching data integrity bug when extending file size especially when no
  513. oplock on file. Fix spurious logging of valid already parsed mount options
  514. that are parsed outside of the cifs vfs such as nosuid.
  515. Version 1.03
  516. ------------
  517. Connect to server when port number override not specified, and tcp port
  518. unitialized. Reset search to restart at correct file when kernel routine
  519. filldir returns error during large directory searches (readdir).
  520. Version 1.02
  521. ------------
  522. Fix caching problem when files opened by multiple clients in which
  523. page cache could contain stale data, and write through did
  524. not occur often enough while file was still open when read ahead
  525. (read oplock) not allowed. Treat "sep=" when first mount option
  526. as an override of comma as the default separator between mount
  527. options.
  528. Version 1.01
  529. ------------
  530. Allow passwords longer than 16 bytes. Allow null password string.
  531. Version 1.00
  532. ------------
  533. Gracefully clean up failed mounts when attempting to mount to servers such as
  534. Windows 98 that terminate tcp sessions during protocol negotiation. Handle
  535. embedded commas in mount parsing of passwords.
  536. Version 0.99
  537. ------------
  538. Invalidate local inode cached pages on oplock break and when last file
  539. instance is closed so that the client does not continue using stale local
  540. copy rather than later modified server copy of file. Do not reconnect
  541. when server drops the tcp session prematurely before negotiate
  542. protocol response. Fix oops in reopen_file when dentry freed. Allow
  543. the support for CIFS Unix Extensions to be disabled via proc interface.
  544. Version 0.98
  545. ------------
  546. Fix hang in commit_write during reconnection of open files under heavy load.
  547. Fix unload_nls oops in a mount failure path. Serialize writes to same socket
  548. which also fixes any possible races when cifs signatures are enabled in SMBs
  549. being sent out of signature sequence number order.
  550. Version 0.97
  551. ------------
  552. Fix byte range locking bug (endian problem) causing bad offset and
  553. length.
  554. Version 0.96
  555. ------------
  556. Fix oops (in send_sig) caused by CIFS unmount code trying to
  557. wake up the demultiplex thread after it had exited. Do not log
  558. error on harmless oplock release of closed handle.
  559. Version 0.95
  560. ------------
  561. Fix unsafe global variable usage and password hash failure on gcc 3.3.1
  562. Fix problem reconnecting secondary mounts to same server after session
  563. failure. Fix invalid dentry - race in mkdir when directory gets created
  564. by another client between the lookup and mkdir.
  565. Version 0.94
  566. ------------
  567. Fix to list processing in reopen_files. Fix reconnection when server hung
  568. but tcpip session still alive. Set proper timeout on socket read.
  569. Version 0.93
  570. ------------
  571. Add missing mount options including iocharset. SMP fixes in write and open.
  572. Fix errors in reconnecting after TCP session failure. Fix module unloading
  573. of default nls codepage
  574. Version 0.92
  575. ------------
  576. Active smb transactions should never go negative (fix double FreeXid). Fix
  577. list processing in file routines. Check return code on kmalloc in open.
  578. Fix spinlock usage for SMP.
  579. Version 0.91
  580. ------------
  581. Fix oops in reopen_files when invalid dentry. drop dentry on server rename
  582. and on revalidate errors. Fix cases where pid is now tgid. Fix return code
  583. on create hard link when server does not support them.
  584. Version 0.90
  585. ------------
  586. Fix scheduling while atomic error in getting inode info on newly created file.
  587. Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
  588. Version 0.89
  589. ------------
  590. Fix oops on write to dead tcp session. Remove error log write for case when file open
  591. O_CREAT but not O_EXCL
  592. Version 0.88
  593. ------------
  594. Fix non-POSIX behavior on rename of open file and delete of open file by taking
  595. advantage of trans2 SetFileInfo rename facility if available on target server.
  596. Retry on ENOSPC and EAGAIN socket errors.
  597. Version 0.87
  598. ------------
  599. Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
  600. allocation size miscalculation. After oplock token lost do not read through
  601. cache.
  602. Version 0.86
  603. ------------
  604. Fix oops on empty file readahead. Fix for file size handling for locally cached files.
  605. Version 0.85
  606. ------------
  607. Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
  608. during auto reconnection to server after server recovered from failure.
  609. Version 0.84
  610. ------------
  611. Finish support for Linux 2.5 open/create changes, which removes the
  612. redundant NTCreate/QPathInfo/close that was sent during file create.
  613. Enable oplock by default. Enable packet signing by default (needed to
  614. access many recent Windows servers)
  615. Version 0.83
  616. ------------
  617. Fix oops when mounting to long server names caused by inverted parms to kmalloc.
  618. Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
  619. we will choose a cifs user session (smb uid) that better matches the local
  620. uid if a) the mount uid does not match the current uid and b) we have another
  621. session to the same server (ip address) for a different mount which
  622. matches the current local uid.
  623. Version 0.82
  624. ------------
  625. Add support for mknod of block or character devices. Fix oplock
  626. code (distributed caching) to properly send response to oplock
  627. break from server.
  628. Version 0.81
  629. ------------
  630. Finish up CIFS packet digital signing for the default
  631. NTLM security case. This should help Windows 2003
  632. network interoperability since it is common for
  633. packet signing to be required now. Fix statfs (stat -f)
  634. which recently started returning errors due to
  635. invalid value (-1 instead of 0) being set in the
  636. struct kstatfs f_ffiles field.
  637. Version 0.80
  638. -----------
  639. Fix oops on stopping oplock thread when removing cifs when
  640. built as module.
  641. Version 0.79
  642. ------------
  643. Fix mount options for ro (readonly), uid, gid and file and directory mode.
  644. Version 0.78
  645. ------------
  646. Fix errors displayed on failed mounts to be more understandable.
  647. Fixed various incorrect or misleading smb to posix error code mappings.
  648. Version 0.77
  649. ------------
  650. Fix display of NTFS DFS junctions to display as symlinks.
  651. They are the network equivalent. Fix oops in
  652. cifs_partialpagewrite caused by missing spinlock protection
  653. of openfile linked list. Allow writebehind caching errors to
  654. be returned to the application at file close.
  655. Version 0.76
  656. ------------
  657. Clean up options displayed in /proc/mounts by show_options to
  658. be more consistent with other filesystems.
  659. Version 0.75
  660. ------------
  661. Fix delete of readonly file to Windows servers. Reflect
  662. presence or absence of read only dos attribute in mode
  663. bits for servers that do not support CIFS Unix extensions.
  664. Fix shortened results on readdir of large directories to
  665. servers supporting CIFS Unix extensions (caused by
  666. incorrect resume key).
  667. Version 0.74
  668. ------------
  669. Fix truncate bug (set file size) that could cause hangs e.g. running fsx
  670. Version 0.73
  671. ------------
  672. unload nls if mount fails.
  673. Version 0.72
  674. ------------
  675. Add resume key support to search (readdir) code to workaround
  676. Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
  677. allows disabling caching of attribute information for
  678. lookups.
  679. Version 0.71
  680. ------------
  681. Add more oplock handling (distributed caching code). Remove
  682. dead code. Remove excessive stack space utilization from
  683. symlink routines.
  684. Version 0.70
  685. ------------
  686. Fix oops in get dfs referral (triggered when null path sent in to
  687. mount). Add support for overriding rsize at mount time.
  688. Version 0.69
  689. ------------
  690. Fix buffer overrun in readdir which caused intermittent kernel oopses.
  691. Fix writepage code to release kmap on write data. Allow "-ip=" new
  692. mount option to be passed in on parameter distinct from the first part
  693. (server name portion of) the UNC name. Allow override of the
  694. tcp port of the target server via new mount option "-port="
  695. Version 0.68
  696. ------------
  697. Fix search handle leak on rewind. Fix setuid and gid so that they are
  698. reflected in the local inode immediately. Cleanup of whitespace
  699. to make 2.4 and 2.5 versions more consistent.
  700. Version 0.67
  701. ------------
  702. Fix signal sending so that captive thread (cifsd) exits on umount
  703. (which was causing the warning in kmem_cache_free of the request buffers
  704. at rmmod time). This had broken as a sideeffect of the recent global
  705. kernel change to daemonize. Fix memory leak in readdir code which
  706. showed up in "ls -R" (and applications that did search rewinding).
  707. Version 0.66
  708. ------------
  709. Reconnect tids and fids after session reconnection (still do not
  710. reconnect byte range locks though). Fix problem caching
  711. lookup information for directory inodes, improving performance,
  712. especially in deep directory trees. Fix various build warnings.
  713. Version 0.65
  714. ------------
  715. Finish fixes to commit write for caching/readahead consistency. fsx
  716. now works to Samba servers. Fix oops caused when readahead
  717. was interrupted by a signal.
  718. Version 0.64
  719. ------------
  720. Fix data corruption (in partial page after truncate) that caused fsx to
  721. fail to Windows servers. Cleaned up some extraneous error logging in
  722. common error paths. Add generic sendfile support.
  723. Version 0.63
  724. ------------
  725. Fix memory leak in AllocMidQEntry.
  726. Finish reconnection logic, so connection with server can be dropped
  727. (or server rebooted) and the cifs client will reconnect.
  728. Version 0.62
  729. ------------
  730. Fix temporary socket leak when bad userid or password specified
  731. (or other SMBSessSetup failure). Increase maximum buffer size to slightly
  732. over 16K to allow negotiation of up to Samba and Windows server default read
  733. sizes. Add support for readpages
  734. Version 0.61
  735. ------------
  736. Fix oops when username not passed in on mount. Extensive fixes and improvements
  737. to error logging (strip redundant newlines, change debug macros to ensure newline
  738. passed in and to be more consistent). Fix writepage wrong file handle problem,
  739. a readonly file handle could be incorrectly used to attempt to write out
  740. file updates through the page cache to multiply open files. This could cause
  741. the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
  742. shares to the same Windows server when using different usernames
  743. (doing this to Samba servers worked but Windows was rejecting it) - now it is
  744. possible to use different userids when connecting to the same server from a
  745. Linux client. Fix oops when treeDisconnect called during unmount on
  746. previously freed socket.
  747. Version 0.60
  748. ------------
  749. Fix oops in readpages caused by not setting address space operations in inode in
  750. rare code path.
  751. Version 0.59
  752. ------------
  753. Includes support for deleting of open files and renaming over existing files (per POSIX
  754. requirement). Add readlink support for Windows junction points (directory symlinks).
  755. Version 0.58
  756. ------------
  757. Changed read and write to go through pagecache. Added additional address space operations.
  758. Memory mapped operations now working.
  759. Version 0.57
  760. ------------
  761. Added writepage code for additional memory mapping support. Fixed leak in xids causing
  762. the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
  763. every stat call. Additional formatting cleanup.
  764. Version 0.56
  765. ------------
  766. Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
  767. Version 0.55
  768. ------------
  769. Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
  770. Also included a modified version of his fix to protect global list manipulation of
  771. the smb session and tree connection and mid related global variables.
  772. Version 0.54
  773. ------------
  774. Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
  775. changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
  776. buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
  777. Version 0.53
  778. ------------
  779. More stylistic updates to better match kernel style. Add additional statistics
  780. for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
  781. and CIFS Packet Signing enablement.
  782. Version 0.52
  783. ------------
  784. Replace call to sleep_on with safer wait_on_event.
  785. Make stylistic changes to better match kernel style recommendations.
  786. Remove most typedef usage (except for the PDUs themselves).
  787. Version 0.51
  788. ------------
  789. Update mount so the -unc mount option is no longer required (the ip address can be specified
  790. in a UNC style device name. Implementation of readpage/writepage started.
  791. Version 0.50
  792. ------------
  793. Fix intermittent problem with incorrect smb header checking on badly
  794. fragmented tcp responses
  795. Version 0.49
  796. ------------
  797. Fixes to setting of allocation size and file size.
  798. Version 0.48
  799. ------------
  800. Various 2.5.38 fixes. Now works on 2.5.38
  801. Version 0.47
  802. ------------
  803. Prepare for 2.5 kernel merge. Remove ifdefs.
  804. Version 0.46
  805. ------------
  806. Socket buffer management fixes. Fix dual free.
  807. Version 0.45
  808. ------------
  809. Various big endian fixes for hardlinks and symlinks and also for dfs.
  810. Version 0.44
  811. ------------
  812. Various big endian fixes for servers with Unix extensions such as Samba
  813. Version 0.43
  814. ------------
  815. Various FindNext fixes for incorrect filenames on large directory searches on big endian
  816. clients. basic posix file i/o tests now work on big endian machines, not just le
  817. Version 0.42
  818. ------------
  819. SessionSetup and NegotiateProtocol now work from Big Endian machines.
  820. Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
  821. versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
  822. Version 0.41
  823. ------------
  824. Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
  825. files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
  826. Version 0.40
  827. ------------
  828. Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
  829. session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
  830. Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
  831. (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
  832. Version 0.38
  833. ------------
  834. Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
  835. it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
  836. Version 0.37
  837. ------------
  838. Rewrote much of connection and mount/unmount logic to handle bugs with
  839. multiple uses to same share, multiple users to same server etc.
  840. Version 0.36
  841. ------------
  842. Fixed major problem with dentry corruption (missing call to dput)
  843. Version 0.35
  844. ------------
  845. Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
  846. Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
  847. although corresponding function not fully implemented in the vfs yet
  848. Version 0.34
  849. ------------
  850. Fixed dentry caching bug, misc. cleanup
  851. Version 0.33
  852. ------------
  853. Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
  854. on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
  855. Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
  856. Version 0.32
  857. ------------
  858. Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
  859. and tested against Samba 2.2.5
  860. Version 0.31
  861. ------------
  862. 1) Fixed lockrange to be correct (it was one byte too short)
  863. 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
  864. show range as locked when there is a conflict with an existing lock.
  865. 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
  866. in most cases. Eventually will offer optional ability to query server for the correct perms.
  867. 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
  868. but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
  869. session)
  870. 4) Fixed error logging of valid mount options
  871. 5) Removed logging of password field.
  872. 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
  873. and cleaned them up and made them more consistent with other cifs functions.
  874. 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
  875. (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
  876. nor is the symlink support using the Unix extensions
  877. 8) Started adding the readlink and follow_link code
  878. Version 0.3
  879. -----------
  880. Initial drop