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2008-05-15[CIFS] enable parsing for transport encryption mount parmSteve French1-0/+5
Samba now supports transport encryption on particular exports (mounted tree ids can be encrypted for servers which support the unix extensions). This adds parsing support to cifs mount option parsing for this. Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-04-17[CIFS] Add various missing flags and defintionsSteve French1-1/+8
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-02-07[CIFS] reduce checkpatch warningsSteve French1-1/+1
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-01-08[CIFS] fix checkpatch warnings in fs/cifs/inode.cSteve French1-11/+17
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-11-20[CIFS] Fix potential data corruption when writing out cached dirty pagesJeff Layton1-15/+12
Fix RedHat bug 329431 The idea here is separate "conscious" from "unconscious" flushes. Conscious flushes are those due to a fsync() or close(). Unconscious ones are flushes that occur as a side effect of some other operation or due to memory pressure. Currently, when an error occurs during an unconscious flush (ENOSPC or EIO), we toss out the page and don't preserve that error to report to the user when a conscious flush occurs. If after the unconscious flush, there are no more dirty pages for the inode, the conscious flush will simply return success even though there were previous errors when writing out pages. This can lead to data corruption. The easiest way to reproduce this is to mount up a CIFS share that's very close to being full or where the user is very close to quota. mv a file to the share that's slightly larger than the quota allows. The writes will all succeed (since they go to pagecache). The mv will do a setattr to set the new file's attributes. This calls filemap_write_and_wait, which will return an error since all of the pages can't be written out. Then later, when the flush and release ops occur, there are no more dirty pages in pagecache for the file and those operations return 0. mv then assumes that the file was written out correctly and deletes the original. CIFS already has a write_behind_rc variable where it stores the results from earlier flushes, but that value is only reported in cifs_close. Since the VFS ignores the return value from the release operation, this isn't helpful. We should be reporting this error during the flush operation. This patch does the following: 1) changes cifs_fsync to use filemap_write_and_wait and cifs_flush and also sync to check its return code. If it returns successful, they then check the value of write_behind_rc to see if an earlier flush had reported any errors. If so, they return that error and clear write_behind_rc. 2) sets write_behind_rc in a few other places where pages are written out as a side effect of other operations and the code waits on them. 3) changes cifs_setattr to only call filemap_write_and_wait for ATTR_SIZE changes. 4) makes cifs_writepages accurately distinguish between EIO and ENOSPC errors when writing out pages. Some simple testing indicates that the patch works as expected and that it fixes the reproduceable known problem. Acked-by: Dave Kleikamp <shaggy@austin.rr.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-08-18[CIFS] Check return code on failed allocCyrill Gorcunov1-0/+6
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-26[CIFS] Fix hang in find_writable_fileSteve French1-0/+7
Caused by unneeded reopen during reconnect while spinlock held. Fixes kernel bugzilla bug #7903 Thanks to Lin Feng Shen for testing this, and Amit Arora for some nice problem determination to narrow this down. Acked-by: Dave Kleikamp <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-11[CIFS] Fix oops in cifs_create when nfsd server exports cifs mountSteve French1-7/+6
nfsd is passing null nameidata (probably the only one doing that) on call to create - cifs was missing one check for this. Note that running nfsd over a cifs mount requires specifying fsid on the nfs exports entry and requires mounting cifs with serverino mount option. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-24[CIFS] Add in some missing flags and cifs README and TODO correctionsSteve French1-7/+18
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-05[CIFS] Fix typo in cifs readme from previous commitSteve French1-2/+2
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-05-05[CIFS] Make sec=none force an anonymous mountJeff Layton1-3/+17
We had a customer report that attempting to make CIFS mount with a null username (i.e. doing an anonymous mount) doesn't work. Looking through the code, it looks like CIFS expects a NULL username from userspace in order to trigger an anonymous mount. The mount.cifs code doesn't seem to ever pass a null username to the kernel, however. It looks also like the kernel can take a sec=none option, but it only seems to look at it if the username is already NULL. This seems redundant and effectively makes sec=none useless. The following patch makes sec=none force an anonymous mount. Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-04-30[CIFS] UID/GID override on CIFS mounts to SambaSteve French1-9/+14
When CIFS Unix Extensions are negotiated we get the Unix uid and gid owners of the file from the server (on the Unix Query Path Info levels), but if the server's uids don't match the client uid's users were having to disable the Unix Extensions (which turned off features they still wanted). The changeset patch allows users to override uid and/or gid for file/directory owner with a default uid and/or gid specified at mount (as is often done when mounting from Linux cifs client to Windows server). This changeset also displays the uid and gid used by default in /proc/mounts (if applicable). Also cleans up code by adding some of the missing spaces after "if" keywords per-kernel style guidelines (as suggested by Randy Dunlap when he reviewed the patch). Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-17Fix typos concerning hierarchyUwe Kleine-König1-1/+1
heirarchical, hierachical -> hierarchical heirarchy, hierachy -> hierarchy Signed-off-by: Uwe Kleine-König <zeisberg@informatik.uni-freiburg.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Still more typo fixesMatt LaPlante1-3/+3
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-08-16[CIFS] Do not send Query All EAs SMB when mount option nouser_xattrSteve French1-1/+1
specified Pointed out by Bjoern Jacke Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-27[CIFS] Fix allocation of buffers for new session setup routine to allowSteve French1-1/+4
longer user and domain names and allow passing sec options on mount Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-23[CIFS] Enable sec flags on mount for cifs (part one)Steve French1-0/+2
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-04CIFS] Support for older servers which require plaintext passwords - part 2Steve French1-6/+26
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-04-22[CIFS] Readdir fixes to allow search to start at arbitrary positionSteve French1-0/+8
in directory Also includes first part of fix to compensate for servers which forget to return . and .. as well as updates to changelog and cifs readme. Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-03-02[CIFS] Make POSIX CIFS Extensions SetFSInfo match exactly what we wantSteve French1-0/+7
not just the posix path feature. Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-12-01[CIFS] Kerberos and CIFS ACL support part 1Steve French1-1/+11
Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-11-29[CIFS] Fix missing permission check on setattr when noperm mount option isSteve French1-6/+24
disabled. Also set mode, uid, gid better on mkdir and create for the case when Unix Extensions is not enabled and setuids is enabled. This is necessary to fix the hole in which chown could be allowed for non-root users in some cases if root mounted, and also to display the mode and uid properly in some cases. Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-10-11[CIFS] CIFS Stats improvementsSteve French1-2/+9
New cifs_writepages routine was not updated bytes written in cifs stats. Also added ability to clear /proc/fs/cifs/Stats by writing (0 or 1) to it. Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-10-10[CIFS] Fix oops in experimental notify code (when CONFIG_CIFS_EXPERIMENTALSteve French1-0/+2
was turned on). Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-10-10[CIFS] Fix byte range locking to Windows when Windows server returnsSteve French1-2/+2
illegal RFC1001 length (which had caused the lock to block forever until killed).
2005-08-18[CIFS] Add mount option for disabling sending byte range lock requestsSteve French1-0/+7
over the wire (to help the case when applications break with cifs mandatory lock behavior. Add part one of mount option for requesting case insensitive path name matching. Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-05-17[CIFS] missing break needed to handle < when mount option "mapchars" specifiedSteve French1-2/+2
Signed-off-by: Steve French (sfrench@us.ibm.com)
2005-05-05[PATCH] remove BK documentationAdrian Bunk1-3/+3
There's no longer a reason to document the obsolete BK usage. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Do not sleep interruptible after socket connect failureSteve French1-5/+10
.. since it can be due to pending kill. Update readme information to better describe cifs umount Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: improve check for search entry going beyond end of SMB transactSteve French1-4/+4
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Missing initialization for largeBuf flag left out of previous changesetSteve French1-1/+18
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: character mapping of special characters (part 3 of 3)Steve French1-2/+2
Signed-off-by: Steve French (sfrench@us.ibm.com) Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28[PATCH] cifs: Add new mount parm mapcharsSteve French1-0/+11
For handling seven special characters that shells use for filenames. This first parts implements conversions from Unicode. Signed-off-by: Steve French Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+475
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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