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path: root/fs/cifs/readdir.c
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* cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_igetJeff Layton2009-07-091-267/+83
| | | | | | | | | | | | | | | | | cifs: convert cifs_get_inode_info and non-posix readdir to use cifs_iget Rather than allocating an inode and filling it out, have cifs_get_inode_info fill out a cifs_fattr and call cifs_iget. This means a pretty hefty reorganization of cifs_get_inode_info. For the readdir codepath, add a couple of new functions for filling out cifs_fattr's from different FindFile response infolevels. Finally, remove cifs_new_inode since there are no more callers. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: add new cifs_iget function and convert unix codepath to use itJeff Layton2009-07-011-163/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cifs: add new cifs_iget function and convert unix codepath to use it In order to unify some codepaths, introduce a common cifs_fattr struct for storing inode attributes. The different codepaths (unix, legacy, normal, etc...) can fill out this struct with inode info. It can then be passed as an arg to a common set of routines to get and update inodes. Add a new cifs_iget function that uses iget5_locked to identify inodes. This will compare inodes based on the uniqueid value in a cifs_fattr struct. Rather than filling out an already-created inode, have cifs_get_inode_info_unix instead fill out cifs_fattr and hand that off to cifs_iget. cifs_iget can then properly look for hardlinked inodes. On the readdir side, add a new cifs_readdir_lookup function that spawns populated dentries. Redefine FILE_UNIX_INFO so that it's basically a FILE_UNIX_BASIC_INFO that has a few fields wrapped around it. This allows us to more easily use the same function for filling out the fattr as the non-readdir codepath. With this, we should then have proper hardlink detection and can eventually get rid of some nasty CIFS-specific hacks for handing them. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: make cnvrtDosUnixTm take a little-endian args and an offsetJeff Layton2009-05-281-22/+10
| | | | | | | | | | | The callers primarily end up converting the args from le anyway. Also, most of the callers end up needing to add an offset to the result. The exception to these rules is cnvrtDosCifsTm, but there are no callers of that function, so we might as well remove it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: have cifs_NTtimeToUnix take a little-endian argJeff Layton2009-05-281-6/+6
| | | | | | | | ...and just have the function call le64_to_cpu. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove trailing whitespaceSteve French2009-05-011-1/+1
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove sparse endian warningsSteve French2009-05-011-1/+36
| | | | | | | | | Removes two sparse CHECK_ENDIAN warnings from Jeffs earlier patch, and removes the dead readlink code (after noting where in findfirst we will need to add something like that in the future to handle the newly discovered unexpected error on FindFirst of NTFS symlinks. Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: fix length handling in cifs_get_name_from_search_bufJeff Layton2009-05-011-5/+6
| | | | | | | | | | | | | | The earlier patch to move this code to use the new unicode helpers assumed that the filename strings would be null terminated. That's not always the case. Instead of passing "max_len" to the string converter, pass "min(len, max_len)", which makes it do the right thing while still keeping the parser confined to the response. Also fix up the prototypes of this function and the callers so that max_len is unsigned (like len is). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: change cifs_get_name_from_search_buf to use new unicode helperJeff Layton2009-04-301-13/+13
| | | | | | | | | | ...and remove cifs_convertUCSpath. There are no more callers. Also add a #define for the buffer used in the readdir path so that we don't have so many magic numbers floating around. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: Increase size of tmp_buf in cifs_readdir to avoid potential overflowsSuresh Jayaraman2009-04-201-1/+1
| | | | | | | | | | Increase size of tmp_buf to possible maximum to avoid potential overflows. Pointed-out-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: vary timeout on writes past EOF based on offset (try #5)Jeff Layton2009-04-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | This is the fourth version of this patch: The first three generated a compiler warning asking for explicit curly braces. The first two didn't handle update the size correctly when writes that didn't start at the eof were done. The first patch also didn't update the size correctly when it explicitly set via truncate(). This patch adds code to track the client's current understanding of the size of the file on the server separate from the i_size, and then to use this info to semi-intelligently set the timeout for writes past the EOF. This helps prevent timeouts when trying to write large, sparse files on windows servers. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Endian convert UniqueId when reporting inode numbers from server filesSteve French2009-04-171-2/+2
| | | | | | | | | | Jeff made a good point that we should endian convert the UniqueId when we use it to set i_ino Even though this value is opaque to the client, when comparing the inode numbers of the same server file from two different clients (one big endian, one little endian) or when we compare a big endian client's view of i_ino with what the server thinks - we should get the same value Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: properly handle case where CIFSGetSrvInodeNumber failsJeff Layton2009-02-211-3/+3
| | | | | | | | | | ...if it does then we pass a pointer to an unintialized variable for the inode number to cifs_new_inode. Have it pass a NULL pointer instead. Also tweak the function prototypes to reduce the amount of casting. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* cifs: refactor new_inode() calls and inode initializationJeff Layton2009-02-211-30/+24
| | | | | | | | Move new inode creation into a separate routine and refactor the callers to take advantage of it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Do not attempt to close invalidated file handlesSteve French2008-11-201-1/+4
| | | | | | | | | | | | | | | If a connection with open file handles has gone down and come back up and reconnected without reopening the file handle yet, do not attempt to send an SMB close request for this handle in cifs_close. We were checking for the connection being invalid in cifs_close but since the connection may have been reconnected we also need to check whether the file handle was marked invalid (otherwise we could close the wrong file handle by accident). Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] fix saving of resume key before CIFSFindNextJeff Layton2008-10-211-1/+2
| | | | | | | | | | | | | | We recently fixed the cifs readdir code so that it saves the resume key before calling CIFSFindNext. Unfortunately, this assumes that we have just done a CIFSFindFirst (or FindNext) and have resume info to save. This isn't necessarily the case. Fix the code to save resume info if we had to reinitiate the search, and after a FindNext. This fixes connectathon basic test6 against NetApp filers. Signed-off-by: Jeff Layton <jlayton@redhat.com> CC: Stable <stable@kernel.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] make sure we have the right resume info before calling CIFSFindNextSteve French2008-10-071-63/+65
| | | | | | | | | | | | | | | | | | | When we do a seekdir() or equivalent, we usually end up doing a FindFirst call and then call FindNext until we get to the offset that we want. The problem is that when we call FindNext, the code usually doesn't have the proper info (mostly, the filename of the entry from the last search) to resume the search. Add a "last_entry" field to the cifs_search_info that points to the last entry in the search. We calculate this pointer by using the LastNameOffset field from the search parms that are returned. We then use that info to do a cifs_save_resume_key before we call CIFSFindNext. This patch allows CIFS to reliably pass the "telldir" connectathon test. Signed-off-by: Jeff Layton <jlayton@redhat.com> CC: Stable <stable@kernel.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix possible double free if search immediately after search rewind failsShirish Pargaonkar2008-07-241-0/+1
| | | | | Signed-off-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* on non-posix shares, clear write bits in mode when ATTR_READONLY is setJeff Layton2008-05-231-32/+39
| | | | | | | | | | | | | | | When mounting a share with posix extensions disabled, cifs_get_inode_info turns off all the write bits in the mode for regular files if ATTR_READONLY is set. Directories and other inode types, however, can also have ATTR_READONLY set, but the mode gives no indication of this. This patch makes this apply to other inode types besides regular files. It also cleans up how modes are set in cifs_get_inode_info for both the "normal" and "dynperm" cases. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] remove unused variablesSteve French2008-05-231-5/+1
| | | | | CC: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] don't explicitly do a FindClose on rewind when directory search has endedSteve French2008-05-131-2/+5
| | | | | | | | | | | | | | | | | | | Do the following series of operations on a CIFS share: opendir(dir) readdir(dir) unlink(file in dir) rewinddir(dir) readdir(dir) If the readdir read all entries in the directory this will make CIFS throw an error like this: CIFS VFS: Send error in FindClose = -9 CIFS requests "Close at end of search" of the server by setting this bit when issuing FindFirst or FindNext. Therefore when all search entries are returned, the server may return "end of search" and close the search implicitly when this bit is set by the client on the request. We check for this when a readdir is explicitly closed - but when the client notices that a directory has changed after the last operation, we attempt to close the directory before reopening by reissuing a second FindFirst. But, the directory may already been implicitly closed (due to end of search) because the first readdir finished. So we only want to issue a FindClose call in this case when we don't expect it to already be closed. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] convert usage of implicit booleans to boolSteve French2008-04-291-6/+6
| | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] clean up some hard to read ifdefsSteve French2008-02-121-2/+4
| | | | | | | | Christoph had noticed too many ifdefs in the CIFS code making it hard to read. This patch removes about a quarter of them from the C files in cifs by improving a few key ifdefs in the .h files. Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] reduce checkpatch warningsSteve French2008-02-071-27/+21
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix stale mode after readdir when cifsacl specifiedSteve French2007-11-081-1/+7
| | | | | | | | | | | | | | | | | | When mounted with cifsacl mount option, readdir can not instantiate the inode with the estimated mode based on the ACL for each file since we have not queried for the ACL for each of these files yet. So set the refresh time to zero for these inodes so that the next stat will cause the client to go to the server for the ACL info so we can build the estimated mode (this means we also will issue an extra QueryPathInfo if the stat happens within 1 second, but this is trivial compared to the time required to open/getacl/close for each). ls -l is slower when cifsacl mount option is specified, but displays correct mode information. Signed-off-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix walking out end of cifs daclSteve French2007-11-051-1/+1
| | | | | Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] remove two sparse warningsSteve French2007-10-121-3/+3
| | | | | Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] formatting cleanup found by checkpatchSteve French2007-08-301-1/+1
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Allow disabling CIFS Unix Extensions as mount optionSteve French2007-07-181-1/+3
| | | | | | | | | Previously the only way to do this was to umount all mounts to that server, turn off a proc setting (/proc/fs/cifs/LinuxExtensionsEnabled). Fixes Samba bugzilla bug number: 4582 (and also 2008) Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] whitespace/formatting fixesSteve French2007-07-131-9/+7
| | | | | | | | | This should be the last big batch of whitespace/formatting fixes. checkpatch warnings for the cifs directory are down about 90% and many of the remaining ones are harder to remove or make the code harder to read. Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] more whitespace fixesSteve French2007-07-081-81/+82
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] more whitespace cleanupSteve French2007-07-071-88/+91
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] whitespace cleanupSteve French2007-07-061-8/+9
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-081-1/+0
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [CIFS] UID/GID override on CIFS mounts to SambaSteve French2007-04-301-62/+67
| | | | | | | | | | | | | | | | | | 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>
* [CIFS] Replace kmalloc/memset combination with kzallocvignesh2007-04-251-5/+2
| | | | | Signed-off-by: Vignesh Babu <vignesh.babu@wipro.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Remove unnecessary checksChristoph Hellwig2007-04-021-24/+3
| | | | | | | | | file->f_path.dentry or file->f_path.dentry.d_inode can't be NULL since at least ten years, similar for all but very few arguments passed in from the VFS. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] reset mode when client notices that ATTR_READONLY is no longer setAlan Tyson2007-03-101-0/+4
| | | | | | Signed-off-by: Alan Tyso <atyson@hp.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Fix locking problem around some cifs uses of i_size writeSteve French2007-02-261-1/+5
| | | | | | | | | | | | | | | Could cause hangs on smp systems in i_size_read on a cifs inode whose size has been previously simultaneously updated from different processes. Thanks to Brian Wang for some great testing/debugging on this hard problem. Fixes kernel bugzilla #7903 CC: Shirish Pargoankar <shirishp@us.ibm.com> CC: Shaggy <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] mtime bounces from local to remote when cifs nocmtime i_flags overwrittenSteve French2007-02-171-0/+4
| | | | | | | | | | atime flag was also overwritten. Noticed by Shirish when he was debugging an atime problem. Should help performance a bit too. cifs should be getting time stamps from the server (that was the original intent too) Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Allow update of EOF on remote extend of fileSteve French2007-02-081-3/+3
| | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* [CIFS] Minor cleanupSteve French2007-02-061-3/+3
| | | | | | Missing tab. Missing entry in changelog Signed-off-by: Steve French <sfrench@us.ibm.com>
* [PATCH] cifs: change uses of f_{dentry, vfsmnt} to use f_pathJosef "Jeff" Sipek2006-12-081-16/+16
| | | | | | | | | Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the cifs filesystem. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [CIFS] Fix readdir breakage when blocksize set too smallSteve French2006-10-301-0/+9
| | | | | | | | | Do not treat filldir running out of space as an error that needs to be returned. Fixes Redhat bugzilla bug # 211070 Signed-off-by: Steve French <sfrench@us.ibm.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2006-10-131-4/+23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (27 commits) [CIFS] Missing flags2 for DFS [CIFS] Workaround incomplete byte length returned by some [CIFS] cifs Kconfig: don't select CONNECTOR [CIFS] Level 1 QPathInfo needed for proper OS2 support [CIFS] fix typo in previous patch [CIFS] Fix old DOS time conversion to handle timezone [CIFS] Do not need to adjust for Jan/Feb for leap day [CIFS] Fix leaps year calculation for years after 2100 [CIFS] readdir (ffirst) enablement of accurate timestamps from legacy servers [CIFS] Fix compiler warning with previous patch [CIFS] Fix typo [CIFS] Allow for 15 minute TZs (e.g. Nepal) and be more explicit about [CIFS] Fix readdir of large directories for backlevel servers [CIFS] Allow LANMAN21 support even in both POSIX non-POSIX path [CIFS] Make use of newer QFSInfo dependent on capability bit instead of [CIFS] Do not send newer QFSInfo to legacy servers which can not support it [CIFS] Fix typo in name of new cifs_show_stats [CIFS] Rename server time zone field [CIFS] Handle legacy servers which return undefined time zone [CIFS] CIFS support for /proc/<pid>/mountstats part 1 ... Manual conflict resolution in fs/cifs/connect.c
| * [CIFS] fix typo in previous patchSteve French2006-10-121-3/+3
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Fix old DOS time conversion to handle timezoneSteve French2006-10-121-1/+12
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] readdir (ffirst) enablement of accurate timestamps from legacy serversSteve French2006-10-061-9/+9
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Fix readdir of large directories for backlevel serversSteve French2006-10-011-0/+1
| | | | | | | | | | | | (were not setting all of resume key) Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Legacy time handling for Win9x and OS/2 part 1Steve French2006-09-281-0/+7
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* | [PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2006-09-271-3/+2
|/ | | | | | | | | | | | | | | | This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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