3 Defer close of a file handle slightly if pending writes depend on that file handle
4 (this reduces the EBADF bad file handle errors that can be logged under heavy
9 Fix tcp socket retransmission timeouts (e.g. on ENOSPACE from the socket)
10 to be smaller at first (but increasing) so large write performance performance
11 over GigE is better. Do not hang thread on illegal byte range lock response
12 from Windows (Windows can send an RFC1001 size which does not match smb size) by
13 allowing an SMBs TCP length to be up to a few bytes longer than it should be.
14 wsize and rsize can now be larger than negotiated buffer size if server
15 supports large readx/writex, even when directio mount flag not specified.
16 Write size will in many cases now be 16K instead of 4K which greatly helps
17 file copy performance on lightly loaded networks. Fix oops in dnotify
18 when experimental config flag enabled. Make cifsFYI more granular.
22 Fix readdir caching when unlink removes file in current search buffer,
23 and this is followed by a rewind search to just before the deleted entry.
24 Do not attempt to set ctime unless atime and/or mtime change requested
25 (most servers throw it away anyway). Fix length check of received smbs
26 to be more accurate. Fix big endian problem with mapchars mount option,
27 and with a field returned by statfs.
31 Add support for mounting to older pre-CIFS servers such as Windows9x and ME.
32 For these older servers, add option for passing netbios name of server in
33 on mount (servernetbiosname). Add suspend support for power management, to
34 avoid cifsd thread preventing software suspend from working.
35 Add mount option for disabling the default behavior of sending byte range lock
36 requests to the server (necessary for certain applications which break with
37 mandatory lock behavior such as Evolution), and also mount option for
38 requesting case insensitive matching for path based requests (requesting
39 case sensitive is the default).
43 Add writepage performance improvements. Fix path name conversions
44 for long filenames on mounts which were done with "mapchars" mount option
45 specified. Ensure multiplex ids do not collide. Fix case in which
46 rmmod can oops if done soon after last unmount. Fix truncated
47 search (readdir) output when resume filename was a long filename.
48 Fix filename conversion when mapchars mount option was specified and
49 filename was a long filename.
53 Fix error mapping of the TOO_MANY_LINKS (hardlinks) case.
54 Do not oops if root user kills cifs oplock kernel thread or
55 kills the cifsd thread (NB: killing the cifs kernel threads is not
56 recommended, unmount and rmmod cifs will kill them when they are
57 no longer needed). Fix readdir to ASCII servers (ie older servers
58 which do not support Unicode) and also require asterisk.
59 Fix out of memory case in which data could be written one page
60 off in the page cache.
64 Fix caching problem, in which readdir of directory containing a file
65 which was cached could cause the file's time stamp to be updated
66 without invalidating the readahead data (so we could get stale
67 file data on the client for that file even as the server copy changed).
68 Cleanup response processing so cifsd can not loop when abnormally
74 Fix oops in ls when Transact2 FindFirst (or FindNext) returns more than one
75 transact response for an SMB request and search entry split across two frames.
76 Add support for lsattr (getting ext2/ext3/reiserfs attr flags from the server)
77 as new protocol extensions. Do not send Get/Set calls for POSIX ACLs
78 unless server explicitly claims to support them in CIFS Unix extensions
79 POSIX ACL capability bit. Fix packet signing when multiuser mounting with
80 different users from the same client to the same server. Fix oops in
81 cifs_close. Add mount option for remapping reserved characters in
82 filenames (also allow recognizing files with created by SFU which have any
83 of these seven reserved characters, except backslash, to be recognized).
84 Fix invalid transact2 message (we were sometimes trying to interpret
85 oplock breaks as SMB responses). Add ioctl for checking that the
86 current uid matches the uid of the mounter (needed by umount.cifs).
87 Reduce the number of large buffer allocations in cifs response processing
88 (significantly reduces memory pressure under heavy stress with multiple
89 processes accessing the same server at the same time).
93 Fix updates of DOS attributes and time fields so that files on NT4 servers
94 do not get marked delete on close. Display sizes of cifs buffer pools in
95 cifs stats. Fix oops in unmount when cifsd thread being killed by
96 shutdown. Add generic readv/writev and aio support. Report inode numbers
97 consistently in readdir and lookup (when serverino mount option is
98 specified use the inode number that the server reports - for both lookup
99 and readdir, otherwise by default the locally generated inode number is used
100 for inodes created in either path since servers are not always able to
101 provide unique inode numbers when exporting multiple volumes from under one
106 Allow new nouser_xattr mount parm to disable xattr support for user namespace.
107 Do not flag user_xattr mount parm in dmesg. Retry failures setting file time
108 (mostly affects NT4 servers) by retry with handle based network operation.
109 Add new POSIX Query FS Info for returning statfs info more accurately.
110 Handle passwords with multiple commas in them.
114 Fix default mode in sysfs of cifs module parms. Remove old readdir routine.
115 Fix capabilities flags for large readx so as to allow reads larger than 64K.
119 Add module init parm for large SMB buffer size (to allow it to be changed
120 from its default of 16K) which is especially useful for large file copy
121 when mounting with the directio mount option. Fix oops after
122 returning from mount when experimental ExtendedSecurity enabled and
123 SpnegoNegotiated returning invalid error. Fix case to retry better when
124 peek returns from 1 to 3 bytes on socket which should have more data.
125 Fixed path based calls (such as cifs lookup) to handle path names
126 longer than 530 (now can handle PATH_MAX). Fix pass through authentication
127 from Samba server to DC (Samba required dummy LM password).
131 Turn off DNOTIFY (directory change notification support) by default
132 (unless built with the experimental flag) to fix hang with KDE
133 file browser. Fix DNOTIFY flag mappings. Fix hang (in wait_event
134 waiting on an SMB response) in SendReceive when session dies but
135 reconnects quickly from another task. Add module init parms for
136 minimum number of large and small network buffers in the buffer pools,
137 and for the maximum number of simultaneous requests.
141 Add setfacl support to allow setting of ACLs remotely to Samba 3.10 and later
142 and other POSIX CIFS compliant servers. Fix error mapping for getfacl
143 to EOPNOTSUPP when server does not support posix acls on the wire. Fix
144 improperly zeroed buffer in CIFS Unix extensions set times call.
148 Fix internationalization problem in cifs readdir with filenames that map to
149 longer UTF8 strings than the string on the wire was in Unicode. Add workaround
150 for readdir to netapp servers. Fix search rewind (seek into readdir to return
151 non-consecutive entries). Do not do readdir when server negotiates
152 buffer size to small to fit filename. Add support for reading POSIX ACLs from
153 the server (add also acl and noacl mount options).
157 Optionally allow using server side inode numbers, rather than client generated
158 ones by specifying mount option "serverino" - this is required for some apps
159 to work which double check hardlinked files and have persistent inode numbers.
163 Multiple bigendian fixes. On little endian systems (for reconnect after
164 network failure) fix tcp session reconnect code so we do not try first
165 to reconnect on reverse of port 445. Treat reparse points (NTFS junctions)
166 as directories rather than symlinks because we can do follow link on them.
170 Add config option to enable XATTR (extended attribute) support, mapping
171 xattr names in the "user." namespace space to SMB/CIFS EAs. Lots of
172 minor fixes pointed out by the Stanford SWAT checker (mostly missing
173 or out of order NULL pointer checks in little used error paths).
177 Add new mount parm to control whether mode check (generic_permission) is done
178 on the client. If Unix extensions are enabled and the uids on the client
179 and server do not match, client permission checks are meaningless on
180 server uids that do not exist on the client (this does not affect the
181 normal ACL check which occurs on the server). Fix default uid
182 on mknod to match create and mkdir. Add optional mount parm to allow
183 override of the default uid behavior (in which the server sets the uid
184 and gid of newly created files). Normally for network filesystem mounts
185 user want the server to set the uid/gid on newly created files (rather than
186 using uid of the client processes you would in a local filesystem).
190 Make transaction counts more consistent. Merge /proc/fs/cifs/SimultaneousOps
191 info into /proc/fs/cifs/DebugData. Fix oops in rare oops in readdir
192 (in build_wildcard_path_from_dentry). Fix mknod to pass type field
193 (block/char/fifo) properly. Remove spurious mount warning log entry when
194 credentials passed as mount argument. Set major/minor device number in
195 inode for block and char devices when unix extensions enabled.
199 Fix /proc/fs/cifs/Stats and DebugData display to handle larger
200 amounts of return data. Properly limit requests to MAX_REQ (50
201 is the usual maximum active multiplex SMB/CIFS requests per server).
202 Do not kill cifsd (and thus hurt the other SMB session) when more than one
203 session to the same server (but with different userids) exists and one
204 of the two user's smb sessions is being removed while leaving the other.
205 Do not loop reconnecting in cifsd demultiplex thread when admin
206 kills the thread without going through unmount.
210 Do not rename hardlinked files (since that should be a noop). Flush
211 cached write behind data when reopening a file after session abend,
212 except when already in write. Grab per socket sem during reconnect
213 to avoid oops in sendmsg if overlapping with reconnect. Do not
214 reset cached inode file size on readdir for files open for write on
220 Update number of blocks in file so du command is happier (in Linux a fake
221 blocksize of 512 is required for calculating number of blocks in inode).
222 Fix prepare write of partial pages to read in data from server if possible.
223 Fix race on tcpStatus field between unmount and reconnection code, causing
224 cifsd process sometimes to hang around forever. Improve out of memory
225 checks in cifs_filldir
229 Fix incorrect file size in file handle based setattr on big endian hardware.
230 Fix oops in build_path_from_dentry when out of memory. Add checks for invalid
231 and closing file structs in writepage/partialpagewrite. Add statistics
232 for each mounted share (new menuconfig option). Fix endianness problem in
233 volume information displayed in /proc/fs/cifs/DebugData (only affects
234 affects big endian architectures). Prevent renames while constructing
235 path names for open, mkdir and rmdir.
239 Change to mempools for alloc smb request buffers and multiplex structs
240 to better handle low memory problems (and potential deadlocks).
244 Fix incomplete listings of large directories on Samba servers when Unix
245 extensions enabled. Fix oops when smb_buffer can not be allocated. Fix
246 rename deadlock when writing out dirty pages at same time.
250 Fix open of files in which O_CREATE can cause the mode to change in
251 some cases. Fix case in which retry of write overlaps file close.
252 Fix PPC64 build error. Reduce excessive stack usage in smb password
253 hashing. Fix overwrite of Linux user's view of file mode to Windows servers.
257 Fixes for large file copy, signal handling, socket retry, buffer
258 allocation and low memory situations.
262 Better port 139 support to Windows servers (RFC1001/RFC1002 Session_Initialize)
263 also now allowing support for specifying client netbiosname. NT4 support added.
267 Fix reconnection (and certain failed mounts) to properly wake up the
268 blocked users thread so it does not seem hung (in some cases was blocked
269 until the cifs receive timeout expired). Fix spurious error logging
270 to kernel log when application with open network files killed.
274 Fix /proc/fs module unload warning message (that could be logged
275 to the kernel log). Fix intermittent failure in connectathon
276 test7 (hardlink count not immediately refreshed in case in which
277 inode metadata can be incorrectly kept cached when time near zero)
281 Allow file_mode and dir_mode (specified at mount time) to be enforced
282 locally (the server already enforced its own ACLs too) for servers
283 that do not report the correct mode (do not support the
284 CIFS Unix Extensions).
288 Fix some small memory leaks in some unmount error paths. Fix major leak
289 of cache pages in readpages causing multiple read oriented stress
290 testcases (including fsx, and even large file copy) to fail over time.
294 Send NTCreateX with ATTR_POSIX if Linux/Unix extensions negotiated with server.
295 This allows files that differ only in case and improves performance of file
296 creation and file open to such servers. Fix semaphore conflict which causes
297 slow delete of open file to Samba (which unfortunately can cause an oplock
298 break to self while vfs_unlink held i_sem) which can hang for 20 seconds.
302 fixes to cifs_readpages for fsx test case
306 Fix caching data integrity bug when extending file size especially when no
307 oplock on file. Fix spurious logging of valid already parsed mount options
308 that are parsed outside of the cifs vfs such as nosuid.
313 Connect to server when port number override not specified, and tcp port
314 unitialized. Reset search to restart at correct file when kernel routine
315 filldir returns error during large directory searches (readdir).
319 Fix caching problem when files opened by multiple clients in which
320 page cache could contain stale data, and write through did
321 not occur often enough while file was still open when read ahead
322 (read oplock) not allowed. Treat "sep=" when first mount option
323 as an override of comma as the default separator between mount
328 Allow passwords longer than 16 bytes. Allow null password string.
332 Gracefully clean up failed mounts when attempting to mount to servers such as
333 Windows 98 that terminate tcp sessions during protocol negotiation. Handle
334 embedded commas in mount parsing of passwords.
338 Invalidate local inode cached pages on oplock break and when last file
339 instance is closed so that the client does not continue using stale local
340 copy rather than later modified server copy of file. Do not reconnect
341 when server drops the tcp session prematurely before negotiate
342 protocol response. Fix oops in reopen_file when dentry freed. Allow
343 the support for CIFS Unix Extensions to be disabled via proc interface.
347 Fix hang in commit_write during reconnection of open files under heavy load.
348 Fix unload_nls oops in a mount failure path. Serialize writes to same socket
349 which also fixes any possible races when cifs signatures are enabled in SMBs
350 being sent out of signature sequence number order.
354 Fix byte range locking bug (endian problem) causing bad offset and
359 Fix oops (in send_sig) caused by CIFS unmount code trying to
360 wake up the demultiplex thread after it had exited. Do not log
361 error on harmless oplock release of closed handle.
365 Fix unsafe global variable usage and password hash failure on gcc 3.3.1
366 Fix problem reconnecting secondary mounts to same server after session
367 failure. Fix invalid dentry - race in mkdir when directory gets created
368 by another client between the lookup and mkdir.
372 Fix to list processing in reopen_files. Fix reconnection when server hung
373 but tcpip session still alive. Set proper timeout on socket read.
377 Add missing mount options including iocharset. SMP fixes in write and open.
378 Fix errors in reconnecting after TCP session failure. Fix module unloading
379 of default nls codepage
383 Active smb transactions should never go negative (fix double FreeXid). Fix
384 list processing in file routines. Check return code on kmalloc in open.
385 Fix spinlock usage for SMP.
389 Fix oops in reopen_files when invalid dentry. drop dentry on server rename
390 and on revalidate errors. Fix cases where pid is now tgid. Fix return code
391 on create hard link when server does not support them.
395 Fix scheduling while atomic error in getting inode info on newly created file.
396 Fix truncate of existing files opened with O_CREAT but not O_TRUNC set.
400 Fix oops on write to dead tcp session. Remove error log write for case when file open
401 O_CREAT but not O_EXCL
405 Fix non-POSIX behavior on rename of open file and delete of open file by taking
406 advantage of trans2 SetFileInfo rename facility if available on target server.
407 Retry on ENOSPC and EAGAIN socket errors.
411 Fix oops on big endian readdir. Set blksize to be even power of two (2**blkbits) to fix
412 allocation size miscalculation. After oplock token lost do not read through
417 Fix oops on empty file readahead. Fix for file size handling for locally cached files.
421 Fix oops in mkdir when server fails to return inode info. Fix oops in reopen_files
422 during auto reconnection to server after server recovered from failure.
426 Finish support for Linux 2.5 open/create changes, which removes the
427 redundant NTCreate/QPathInfo/close that was sent during file create.
428 Enable oplock by default. Enable packet signing by default (needed to
429 access many recent Windows servers)
433 Fix oops when mounting to long server names caused by inverted parms to kmalloc.
434 Fix MultiuserMount (/proc/fs/cifs configuration setting) so that when enabled
435 we will choose a cifs user session (smb uid) that better matches the local
436 uid if a) the mount uid does not match the current uid and b) we have another
437 session to the same server (ip address) for a different mount which
438 matches the current local uid.
442 Add support for mknod of block or character devices. Fix oplock
443 code (distributed caching) to properly send response to oplock
448 Finish up CIFS packet digital signing for the default
449 NTLM security case. This should help Windows 2003
450 network interoperability since it is common for
451 packet signing to be required now. Fix statfs (stat -f)
452 which recently started returning errors due to
453 invalid value (-1 instead of 0) being set in the
454 struct kstatfs f_ffiles field.
458 Fix oops on stopping oplock thread when removing cifs when
463 Fix mount options for ro (readonly), uid, gid and file and directory mode.
467 Fix errors displayed on failed mounts to be more understandable.
468 Fixed various incorrect or misleading smb to posix error code mappings.
472 Fix display of NTFS DFS junctions to display as symlinks.
473 They are the network equivalent. Fix oops in
474 cifs_partialpagewrite caused by missing spinlock protection
475 of openfile linked list. Allow writebehind caching errors to
476 be returned to the application at file close.
480 Clean up options displayed in /proc/mounts by show_options to
481 be more consistent with other filesystems.
485 Fix delete of readonly file to Windows servers. Reflect
486 presence or absence of read only dos attribute in mode
487 bits for servers that do not support CIFS Unix extensions.
488 Fix shortened results on readdir of large directories to
489 servers supporting CIFS Unix extensions (caused by
490 incorrect resume key).
494 Fix truncate bug (set file size) that could cause hangs e.g. running fsx
498 unload nls if mount fails.
502 Add resume key support to search (readdir) code to workaround
503 Windows bug. Add /proc/fs/cifs/LookupCacheEnable which
504 allows disabling caching of attribute information for
509 Add more oplock handling (distributed caching code). Remove
510 dead code. Remove excessive stack space utilization from
515 Fix oops in get dfs referral (triggered when null path sent in to
516 mount). Add support for overriding rsize at mount time.
520 Fix buffer overrun in readdir which caused intermittent kernel oopses.
521 Fix writepage code to release kmap on write data. Allow "-ip=" new
522 mount option to be passed in on parameter distinct from the first part
523 (server name portion of) the UNC name. Allow override of the
524 tcp port of the target server via new mount option "-port="
528 Fix search handle leak on rewind. Fix setuid and gid so that they are
529 reflected in the local inode immediately. Cleanup of whitespace
530 to make 2.4 and 2.5 versions more consistent.
535 Fix signal sending so that captive thread (cifsd) exits on umount
536 (which was causing the warning in kmem_cache_free of the request buffers
537 at rmmod time). This had broken as a sideeffect of the recent global
538 kernel change to daemonize. Fix memory leak in readdir code which
539 showed up in "ls -R" (and applications that did search rewinding).
543 Reconnect tids and fids after session reconnection (still do not
544 reconnect byte range locks though). Fix problem caching
545 lookup information for directory inodes, improving performance,
546 especially in deep directory trees. Fix various build warnings.
550 Finish fixes to commit write for caching/readahead consistency. fsx
551 now works to Samba servers. Fix oops caused when readahead
552 was interrupted by a signal.
556 Fix data corruption (in partial page after truncate) that caused fsx to
557 fail to Windows servers. Cleaned up some extraneous error logging in
558 common error paths. Add generic sendfile support.
562 Fix memory leak in AllocMidQEntry.
563 Finish reconnection logic, so connection with server can be dropped
564 (or server rebooted) and the cifs client will reconnect.
568 Fix temporary socket leak when bad userid or password specified
569 (or other SMBSessSetup failure). Increase maximum buffer size to slightly
570 over 16K to allow negotiation of up to Samba and Windows server default read
571 sizes. Add support for readpages
575 Fix oops when username not passed in on mount. Extensive fixes and improvements
576 to error logging (strip redundant newlines, change debug macros to ensure newline
577 passed in and to be more consistent). Fix writepage wrong file handle problem,
578 a readonly file handle could be incorrectly used to attempt to write out
579 file updates through the page cache to multiply open files. This could cause
580 the iozone benchmark to fail on the fwrite test. Fix bug mounting two different
581 shares to the same Windows server when using different usernames
582 (doing this to Samba servers worked but Windows was rejecting it) - now it is
583 possible to use different userids when connecting to the same server from a
584 Linux client. Fix oops when treeDisconnect called during unmount on
585 previously freed socket.
589 Fix oops in readpages caused by not setting address space operations in inode in
594 Includes support for deleting of open files and renaming over existing files (per POSIX
595 requirement). Add readlink support for Windows junction points (directory symlinks).
599 Changed read and write to go through pagecache. Added additional address space operations.
600 Memory mapped operations now working.
604 Added writepage code for additional memory mapping support. Fixed leak in xids causing
605 the simultaneous operations counter (/proc/fs/cifs/SimultaneousOps) to increase on
606 every stat call. Additional formatting cleanup.
610 Fix bigendian bug in order of time conversion. Merge 2.5 to 2.4 version. Formatting cleanup.
614 Fixes from Zwane Mwaikambo for adding missing return code checking in a few places.
615 Also included a modified version of his fix to protect global list manipulation of
616 the smb session and tree connection and mid related global variables.
620 Fix problem with captive thread hanging around at unmount time. Adjust to 2.5.42-pre
621 changes to superblock layout. Remove wasteful allocation of smb buffers (now the send
622 buffer is reused for responses). Add more oplock handling. Additional minor cleanup.
626 More stylistic updates to better match kernel style. Add additional statistics
627 for filesystem which can be viewed via /proc/fs/cifs. Add more pieces of NTLMv2
628 and CIFS Packet Signing enablement.
632 Replace call to sleep_on with safer wait_on_event.
633 Make stylistic changes to better match kernel style recommendations.
634 Remove most typedef usage (except for the PDUs themselves).
638 Update mount so the -unc mount option is no longer required (the ip address can be specified
639 in a UNC style device name. Implementation of readpage/writepage started.
643 Fix intermittent problem with incorrect smb header checking on badly
644 fragmented tcp responses
648 Fixes to setting of allocation size and file size.
652 Various 2.5.38 fixes. Now works on 2.5.38
656 Prepare for 2.5 kernel merge. Remove ifdefs.
660 Socket buffer management fixes. Fix dual free.
664 Various big endian fixes for hardlinks and symlinks and also for dfs.
668 Various big endian fixes for servers with Unix extensions such as Samba
672 Various FindNext fixes for incorrect filenames on large directory searches on big endian
673 clients. basic posix file i/o tests now work on big endian machines, not just le
677 SessionSetup and NegotiateProtocol now work from Big Endian machines.
678 Various Big Endian fixes found during testing on the Linux on 390. Various fixes for compatibility with older
679 versions of 2.4 kernel (now builds and works again on kernels at least as early as 2.4.7).
683 Various minor fixes for Connectathon Posix "basic" file i/o test suite. Directory caching fixed so hardlinked
684 files now return the correct number of links on fstat as they are repeatedly linked and unlinked.
688 Implemented "Raw" (i.e. not encapsulated in SPNEGO) NTLMSSP (i.e. the Security Provider Interface used to negotiate
689 session advanced session authentication). Raw NTLMSSP is preferred by Windows 2000 Professional and Windows XP.
690 Began implementing support for SPNEGO encapsulation of NTLMSSP based session authentication blobs
691 (which is the mechanism preferred by Windows 2000 server in the absence of Kerberos).
695 Introduced optional mount helper utility mount.cifs and made coreq changes to cifs vfs to enable
696 it. Fixed a few bugs in the DFS code (e.g. bcc two bytes too short and incorrect uid in PDU).
700 Rewrote much of connection and mount/unmount logic to handle bugs with
701 multiple uses to same share, multiple users to same server etc.
705 Fixed major problem with dentry corruption (missing call to dput)
709 Rewrite of readdir code to fix bug. Various fixes for bigendian machines.
710 Begin adding oplock support. Multiusermount and oplockEnabled flags added to /proc/fs/cifs
711 although corresponding function not fully implemented in the vfs yet
715 Fixed dentry caching bug, misc. cleanup
719 Fixed 2.5 support to handle build and configure changes as well as misc. 2.5 changes. Now can build
720 on current 2.5 beta version (2.5.24) of the Linux kernel as well as on 2.4 Linux kernels.
721 Support for STATUS codes (newer 32 bit NT error codes) added. DFS support begun to be added.
725 Unix extensions (symlink, readlink, hardlink, chmod and some chgrp and chown) implemented
726 and tested against Samba 2.2.5
731 1) Fixed lockrange to be correct (it was one byte too short)
733 2) Fixed GETLK (i.e. the fcntl call to test a range of bytes in a file to see if locked) to correctly
734 show range as locked when there is a conflict with an existing lock.
736 3) default file perms are now 2767 (indicating support for mandatory locks) instead of 777 for directories
737 in most cases. Eventually will offer optional ability to query server for the correct perms.
739 3) Fixed eventual trap when mounting twice to different shares on the same server when the first succeeded
740 but the second one was invalid and failed (the second one was incorrectly disconnecting the tcp and smb
743 4) Fixed error logging of valid mount options
745 5) Removed logging of password field.
747 6) Moved negotiate, treeDisconnect and uloggoffX (only tConx and SessSetup remain in connect.c) to cifssmb.c
748 and cleaned them up and made them more consistent with other cifs functions.
750 7) Server support for Unix extensions is now fully detected and FindFirst is implemented both ways
751 (with or without Unix extensions) but FindNext and QueryPathInfo with the Unix extensions are not completed,
752 nor is the symlink support using the Unix extensions
754 8) Started adding the readlink and follow_link code