Commit Graph

66 Commits

Author SHA1 Message Date
Jeff Layton cc0bad7552 cifs: add new cifs_iget function and convert unix codepath to use it
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>
2009-07-01 21:26:42 +00:00
Steve French 85a6dac54a [CIFS] Endian convert UniqueId when reporting inode numbers from server files
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>
2009-04-17 01:26:48 +00:00
Steve French 0382457744 [CIFS] Add definitions for remoteably fsctl calls
There are about 60 fsctl calls which Windows claims would be able
to be sent remotely and handled by the server. This adds the #defines
for them.  A few of them look immediately useful, but need to also
add the structure definitions for them so they can be sent as SMBs.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2009-03-12 01:36:21 +00:00
Steve French 10e70afa75 [CIFS] DFS no longer experimental
Also updates some DFS flag definitions

Signed-off-by: Steve French <sfrench@us.ibm.com>
2009-03-12 01:36:20 +00:00
Steve French b298f22355 [CIFS] Send SMB flush in cifs_fsync
In contrast to the now-obsolete smbfs, cifs does not send SMB_COM_FLUSH
in response to an explicit fsync(2) to guarantee that all volatile data
is written to stable storage on the server side, provided the server
honors the request (which, to my knowledge, is true for Windows and
Samba with 'strict sync' enabled).
This patch modifies the cifs_fsync implementation to restore the
fsync-behavior of smbfs by triggering SMB_COM_FLUSH after sending
outstanding data on the client side to the server.

Signed-off-by: Horst Reiterer <horst.reiterer@gmail.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2009-03-12 01:36:20 +00:00
Steve French 61e7480158 [CIFS] various minor cleanups pointed out by checkpatch script
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-12-26 02:29:10 +00:00
Jeff Layton 4e1e7fb9e8 bundle up Unix SET_PATH_INFO args into a struct and change name
We'd like to be able to use the unix SET_PATH_INFO_BASIC args to set
file times as well, but that makes the argument list rather long. Bundle
up the args for unix SET_PATH_INFO call into a struct. For now, we don't
actually use the times fields anywhere. That will be done in a follow-on
patch.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-08-06 04:17:20 +00:00
Shirish Pargaonkar ef571cadd5 [CIFS] Fix warnings from checkpatch
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-07-24 15:56:05 +00:00
Steve French b7206153f6 [CIFS] Correct incorrect obscure open flag
Also add defines for pipe subcommand codes

Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-23 20:35:07 +00:00
Steve French a1fe78f16e [CIFS] Add missing defines for DFS
Also has minor cleanup of previous patch

CC: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-16 18:48:38 +00:00
Igor Mammedov fec4585fd7 CIFSGetDFSRefer cleanup + dfs_referral_level_3 fixed to conform REFERRAL_V3 the MS-DFSC spec.
Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-16 18:41:43 +00:00
Jeff Layton 67750fb9e0 [CIFS] when not using unix extensions, check for and set ATTR_READONLY on create and mkdir
When creating a directory on a CIFS share without POSIX extensions,
and the given mode has no write bits set, set the ATTR_READONLY bit.

When creating a file, set ATTR_READONLY if the create mode has no write
bits set and we're not using unix extensions.

There are some comments about this being problematic due to the VFS
splitting creates into 2 parts. I'm not sure what that's actually
talking about, but I'm assuming that it has something to do with how
mknod is implemented. In the simple case where we have no unix
extensions and we're just creating a regular file, there's no reason
we can't set ATTR_READONLY.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-05-11 17:45:43 +00:00
Steve French 0206e61b46 [CIFS] Fix spelling mistake
Noticed by Joe Perches

Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-04-25 18:19:40 +00:00
Steve French a7f796a60b [CIFS] Fix typo in previous commit
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-04-24 16:39:07 +00:00
Steve French ee4987ab5c [CIFS] Fix define for new proxy cap to match documentation
The transport encryption capability and new SetFSInfo level were missing, and the
new proxy capability (which Samba server is implementing) and proxy setfsinfo needed
to be moved down to not collide with Samba's transport encryption capability.

CC: Jeremy Allison <jra@samba.org>
CC: Sam Liddicott <sam@lidicott.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-04-24 16:31:12 +00:00
Steve French 2302aca850 [CIFS] Reserve new proxy cap for WAFS
New WAFS filer uses ioctls which are shown to be available
on a share by querying this info level

Acked-by: Sam Liddicott <sam@liddicott.com>
Signed-off-by: Stevef French <sfrench@us.ibm.com>
2008-04-18 16:40:32 +00:00
Steve French 675c46796d [CIFS] Add various missing flags and defintions
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-04-17 23:41:01 +00:00
Steve French 97837582bc [CIFS] Allow setting mode via cifs acl
Requires cifsacl mount flag to be on and CIFS_EXPERIMENTAL enabled

CC: Shirish Pargaonkar <shirishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-12-31 07:47:21 +00:00
Steve French 7505e0525c [CIFS] If no Access Control Entries, set mode perm bits to zero
Also clean up ACL code

Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-11-01 18:03:01 +00:00
Steve French 953f868138 [CIFS] Don't request too much permission when reading an ACL
We were requesting GENERIC_READ but that fails when  we do not have
read permission on the file (even if we could read the ACL).

Also move the dump access control entry code into debug ifdef.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-10-31 04:54:42 +00:00
Steve French a750e77c21 [CIFS] acl support part 4
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-10-17 22:50:39 +00:00
Steve French 92ad9b93cd [CIFS] named pipe support (part 2)
Also fixes typo which could cause build break

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-09-29 05:21:58 +00:00
Steve French 26f57364d7 [CIFS] formatting cleanup found by checkpatch
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-08-30 22:09:15 +00:00
Steve French 2d785a50a8 [CIFS] Add support for new POSIX unlink
In the cleanup phase of the dbench test, we were noticing sharing
violation followed by failed directory removals when dbench
did not close the test files before the cleanup phase started.
Using the new POSIX unlink, which Samba has supported for a few
months, avoids this.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-15 01:48:57 +00:00
Steve French 50c2f75388 [CIFS] whitespace/formatting fixes
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>
2007-07-13 00:33:32 +00:00
Steve French 75865f8cc8 [CIFS] Add in some missing flags and cifs README and TODO corrections
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-24 18:30:48 +00:00
Steve French 2dd29d3133 [CIFS] New CIFS POSIX mkdir performance improvement
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-04-23 22:07:35 +00:00
Linus Torvalds 12998096cc Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] Allow reset of file to ATTR_NORMAL when archive bit not set
  [CIFS] Do not negotiate new POSIX_PATH_OPERATIONS_CAP yet
  [CIFS] reset mode when client notices that ATTR_READONLY is no longer set
2007-03-22 19:47:09 -07:00
Steve French 38e2aff670 [CIFS] Do not negotiate new POSIX_PATH_OPERATIONS_CAP yet
Samba server now expects that clients which send the new
POSIX_PATH_OPERATIONS_CAP send all opens with this new
SMB - and expects that clients that could send the new
posix open/create but don't as indicating that they really
want Windows semantics on that handle (which allows Samba
to support clients which want to support both types of
behaviors on different handles on the same mount)

We will put this capability back in the SetFSInfo
negotiation with servers like Samba when the
new POSIXCreate (create/open/mkdir) code is finished.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-03-16 05:12:53 +00:00
Al Viro 82c05a13c9 [PATCH] cifs endianness annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14 15:27:50 -07:00
Steve French c7af1857ef [CIFS] Fix set file size to zero when doing chmod to Samba 3.0.26pre
In fixing a bug Samba 3.0.26pre allowed some clients (including Linux cifs
client) to change file size to zero in SET_FILE_UNIX_BASIC (which Linux cifs
client uses for chmod).

The server has been "fixed" now but that also fixes the client to net send
file size zero on chmod.

Fixes Samba bugzilla bug # 4418.

Fixed with help from Jeremy Allison

Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-03-01 04:11:22 +00:00
Steve French c14e894bd4 [CIFS] fix &&/& typo in cifs_setattr()
Thanks to Dirk for pointing this out.

Signed-off-by: Dirk Mueller <dmueller@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-15 01:33:18 +00:00
Steve French 8af1897158 [CIFS] on reconnect to Samba - reset the unix capabilities
After temporary server or network failure and reconneciton, we were not
resending the unix capabilities via SetFSInfo - which confused Samba posix
byte range locking code.

Discovered by jra

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-14 04:42:51 +00:00
Steve French 595dcfecf6 [CIFS] POSIX CIFS Extensions (continued) - POSIX Open
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-08 18:11:42 +00:00
Steve French 87f440e70e [CIFS] Additional POSIX CIFS Extensions infolevels
also includes cleanup of whitespace/80 columns

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-02-07 00:29:46 +00:00
Steve French 33ec32fae0 [CIFS] Fix NTLMv2 mounts to Windows servers
Windows servers are pickier about NTLMv2 than Samba.
This enables more secure mounts to Windows (not just Samba)
ie when "sec=ntlmv2" is specified on the mount.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-12-08 04:14:28 +00:00
Steve French b815f1e559 [CIFS] Allow for 15 minute TZs (e.g. Nepal) and be more explicit about
not setting time on close

Signed-off-by: Guenter Kukkukk <linux@kukkukk.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-10-02 05:53:29 +00:00
Steve French 9ac00b7d96 [CIFS] Do not send newer QFSInfo to legacy servers which can not support it
Fix dialect negotiation to save off when we have negotiated lanman.
This allows us to avoid sending some somewhat newer requests that the server
can not handle and go directly to the older version (infolevel) of the same
call. Make sure we try to negotiate a level which allows us to get the
server OS (which we check so we can detect Win9x vs. other legacy servers
and eventually work around the Win9x DOS time bug (they reverse date/time
fields).

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-09-30 04:13:17 +00:00
Steve French 175ec9e11c [CIFS] Rename server time zone field
Server time zone is not really a time zone, rather a time adjustement
in seconds.

CC: Guenter Kukkukk <linux@kukkukk.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-09-30 01:07:38 +00:00
Steve French 2fe87f02a0 [CIFS] Support deep tree mounts (e.g. mounts to //server/share/path)
Samba bugzilla #4040

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-09-21 07:02:52 +00:00
Steve French 5bafd76593 [CIFS] Add support for readdir to legacy servers
Fixes oops to OS/2 on ls and removes redundant NTCreateX calls to servers
which do not support NT SMBs.  Key operations to OS/2 work.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-07 00:18:43 +00:00
Steve French 6d027cfdb1 [CIFS] NTLMv2 support part 3
Response struct filled in exacty for 16 byte hash which we need to check
more to make sure it works.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-05 16:26:05 +00:00
Steve French f64b23ae4a [CIFS] NTLMv2 support part 2
Still need to fill in response structure and check that hash works

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-05 05:27:37 +00:00
Steve French 254e55ed03 CIFS] Support for older servers which require plaintext passwords - part 2
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-04 05:53:15 +00:00
Steve French 7c7b25bc8e [CIFS] Support for setting up SMB sessions to legacy lanman servers part 2 2006-06-01 19:20:10 +00:00
Steve French 3979877e56 [CIFS] Support for setting up SMB sessions to legacy lanman servers 2006-05-31 22:40:51 +00:00
Steve French 82940a4658 [CIFS] Make POSIX CIFS Extensions SetFSInfo match exactly what we want
not just the posix path feature.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-03-02 03:24:57 +00:00
Steve French 08547b036b [CIFS] Add posix (advisory) byte range locking support to cifs client
Samba (version 3) server support for this is also currently being
done.  This client code is in an experimental path (requires enabling
/proc/fs/cifs/Experimental) while it is being tested.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-02-28 22:39:25 +00:00
Steve French 0a4b92c05e [CIFS] Add worker function for Get ACL cifs style
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-12 15:44:21 -08:00
Steve French ec637e3ffb [CIFS] Avoid extra large buffer allocation (and memcpy) in cifs_readpages
Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-12-12 20:53:18 -08:00