Commit Graph

67 Commits

Author SHA1 Message Date
Steven French
2167114c6e Query device characteristics at mount time from server on SMB2/3 not just on cifs mounts
Currently SMB2 and SMB3 mounts do not query the device information at mount time
from the server as is done for cifs.  These can be useful for debugging.
This is a minor patch, that extends the previous one (which added ability to
query file system attributes at mount time - this returns the device
characteristics - also via in /proc/fs/cifs/DebugData)

Signed-off-by: Steve French <smfrench@gmail.com>
2013-11-02 12:52:38 -05:00
Steve French
34f626406c Query file system attributes from server on SMB2, not just cifs, mounts
Currently SMB2 and SMB3 mounts do not query the file system attributes
from the server at mount time as is done for cifs.  These can be useful for debugging.

Signed-off-by: Steve French <smfrench@gmail.com>
2013-10-28 09:22:55 -05:00
Steve French
64a5cfa6db Allow setting per-file compression via SMB2/3
Allow cifs/smb2/smb3 to return whether or not a file is compressed
via lsattr, and allow SMB2/SMB3 to set the per-file compression
flag ("chattr +c filename" on an smb3 mount).

Windows users often set the compressed flag (it can be
done from the desktop and file manager).  David Disseldorp
has patches to Samba server to support this (at least on btrfs)
which are complementary to this

Signed-off-by: Steve French <smfrench@gmail.com>
2013-10-28 09:22:31 -05:00
Pavel Shilovsky
42873b0a28 CIFS: Respect epoch value from create lease context v2
that force a client to purge cache pages when a server requests it.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-09 22:52:18 -05:00
Pavel Shilovsky
f047390a09 CIFS: Add create lease v2 context for SMB3
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-09 22:52:14 -05:00
Pavel Shilovsky
b5c7cde3fa CIFS: Move parsing lease buffer to ops struct
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-09 22:52:11 -05:00
Pavel Shilovsky
a41a28bda9 CIFS: Move creating lease buffer to ops struct
to make adding new types of lease buffers easier.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-09 22:52:08 -05:00
Pavel Shilovsky
53ef1016fd CIFS: Store lease state itself rather than a mapped oplock value
and separate smb20_operations struct.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-09 22:52:05 -05:00
Pavel Shilovsky
18cceb6a78 CIFS: Replace clientCanCache* bools with an integer
that prepare the code to handle different types of SMB2 leases.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-08 17:49:17 -05:00
Pavel Shilovsky
b42bf88828 CIFS: Implement follow_link for SMB2
that allows to access files through symlink created on a server.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-09-08 14:27:34 -05:00
Pavel Shilovsky
9cbc0b7339 CIFS: Reconnect durable handles for SMB2
On reconnects, we need to reopen file and then obtain all byte-range
locks held by the client. SMB2 protocol provides feature to make
this process atomic by reconnecting to the same file handle
with all it's byte-range locks. This patch adds this capability
for SMB2 shares.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10 13:08:40 -05:00
Pavel Shilovsky
064f6047a1 CIFS: Make SMB2_open use cifs_open_parms struct
to prepare it for further durable handle reconnect processing.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10 13:08:40 -05:00
Pavel Shilovsky
ca81983fe5 CIFS: Respect create_options in smb2_open_file
and eliminated unused file_attribute parms of SMB2_open.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10 13:08:39 -05:00
Jeff Layton
50285882fd cifs: fix SMB2 signing enablement in cifs_enable_signing
Commit 9ddec56131 (cifs: move handling of signed connections into
separate function) broke signing on SMB2/3 connections. While the code
to enable signing on the connections was very similar between the two,
the bits that get set in the sec_mode are different.

Declare a couple of new smb_version_values fields and set them
appropriately for SMB1 and SMB2/3. Then change cifs_enable_signing to
use those instead.

Reported-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-06-27 23:42:18 -05:00
Steve French
e65a5cb417 [CIFS] Fix build warning
Fix build warning in Shirish's recent SMB3 signing patch
which occurs when SMB2 support is disabled in Kconfig.

fs/built-in.o: In function `cifs_setup_session':
>> (.text+0xa1767): undefined reference to `generate_smb3signingkey'

Pointed out by: automated 0-DAY kernel build testing backend
Intel Open Source Technology Center

CC: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-06-27 01:06:50 -05:00
Steve French
7f6538585e Remove typo
Cut and paste likely introduced accidentally inserted spurious #define
in d60622eb5a causes no harm but looks weird

Signed-off-by: Steve French <smfrench@gmail.com>
2013-06-26 17:26:03 -05:00
Steve French
769ee6a402 Add ability to dipslay SMB3 share flags and capabilities for debugging
SMB3 protocol adds various optional per-share capabilities (and
SMB3.02 adds one more beyond that).  Add ability to dump
(/proc/fs/cifs/DebugData) the share capabilities and share flags to
improve debugging.

Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
2013-06-24 01:56:46 -05:00
Steve French
20b6d8b42e Add SMB3.02 dialect support
The new Windows update supports SMB3.02 dialect, a minor update to SMB3.
This patch adds support for mounting with vers=3.02

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
2013-06-24 01:56:45 -05:00
Joe Perches
f96637be08 [CIFS] cifs: Rename cERROR and cFYI to cifs_dbg
It's not obvious from reading the macro names that these macros
are for debugging.  Convert the names to a single more typical
kernel style cifs_dbg macro.

	cERROR(1, ...)   -> cifs_dbg(VFS, ...)
	cFYI(1, ...)     -> cifs_dbg(FYI, ...)
	cFYI(DBG2, ...)  -> cifs_dbg(NOISY, ...)

Move the terminating format newline from the macro to the call site.

Add CONFIG_CIFS_DEBUG function cifs_vfs_err to emit the
"CIFS VFS: " prefix for VFS messages.

Size is reduced ~ 1% when CONFIG_CIFS_DEBUG is set (default y)

$ size fs/cifs/cifs.ko*
   text    data     bss     dec     hex filename
 265245	   2525	    132	 267902	  4167e	fs/cifs/cifs.ko.new
 268359    2525     132  271016   422a8 fs/cifs/cifs.ko.old

Other miscellaneous changes around these conversions:

o Miscellaneous typo fixes
o Add terminating \n's to almost all formats and remove them
  from the macros to be more kernel style like.  A few formats
  previously had defective \n's
o Remove unnecessary OOM messages as kmalloc() calls dump_stack
o Coalesce formats to make grep easier,
  added missing spaces when coalescing formats
o Use %s, __func__ instead of embedded function name
o Removed unnecessary "cifs: " prefixes
o Convert kzalloc with multiply to kcalloc
o Remove unused cifswarn macro

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-05-04 22:17:23 -05:00
Pavel Shilovsky
067785c40e CIFS: Fix missing of oplock_read value in smb30_values structure
Cc: stable@vger.kernel.org
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2013-03-06 19:37:01 -06:00
Pavel Shilovsky
63b7d3a41c CIFS: Don't let read only caching for mandatory byte-range locked files
If we have mandatory byte-range locks on a file we can't cache reads
because pagereading may have conflicts with these locks on the server.
That's why we should allow level2 oplocks for files without mandatory
locks only.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-01-01 23:04:30 -06:00
Steve French
38107d45cf Do not send SMB2 signatures for SMB3 frames
Restructure code to make SMB2 vs. SMB3 signing a protocol
specific op.  SMB3 signing (AES_CMAC) is not enabled yet,
but this restructuring at least makes sure we don't send
an smb2 signature on an smb3 signed connection. A followon
patch will add AES_CMAC and enable smb3 signing.

Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Jeff Layton <jlayton@samba.org>
2012-12-09 19:45:45 -06:00
Steve French
dd446b16ed Add SMB2.02 dialect support
This patch enables optional for original SMB2 (SMB2.02) dialect
by specifying vers=2.0 on mount.

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05 13:27:29 -06:00
Steve French
6d3ea7e497 CIFS: Make use of common cifs_build_path_to_root for CIFS and SMB2
because the is no difference here. This also adds support of prefixpath
mount option for SMB2.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05 13:27:28 -06:00
Steve French
e4aa25e780 [CIFS] Fix SMB2 negotiation support to select only one dialect (based on vers=)
Based on whether the user (on mount command) chooses:

vers=3.0 (for smb3.0 support)
vers=2.1 (for smb2.1 support)
or (with subsequent patch, which will allow SMB2 support)
vers=2.0 (for original smb2.02 dialect support)

send only one dialect at a time during negotiate (we
had been sending a list).

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-10-01 12:26:22 -05:00
Pavel Shilovsky
760ad0cac1 CIFS: Make ops->close return void
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-26 22:05:10 -05:00
Steve French
12e8a20824 Trivial endian fixes
Some trivial endian fixes for the SMB2 code. One
warning remains which I asked Pavel to look at.

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:34 -05:00
Pavel Shilovsky
0822f51426 CIFS: Add SMB2.1 lease break support
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24 21:46:33 -05:00
Pavel Shilovsky
b8c32dbb0d CIFS: Request SMB2.1 leases
if server supports them and we need oplocks.

Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24 21:46:33 -05:00
Pavel Shilovsky
b140799a11 CIFS: Use brlock cache for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24 21:46:33 -05:00
Pavel Shilovsky
f7ba7fe685 CIFS: Add brlock support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru>
2012-09-24 21:46:33 -05:00
Pavel Shilovsky
027e8eec31 CIFS: Handle SMB2 lock flags
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-09-24 21:46:32 -05:00
Jeff Layton
71953fc6e4 cifs: remove kmap lock and rsize limit
Now that we aren't abusing the kmap address space, there's no need for
this lock or to impose a limit on the rsize.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-09-24 21:46:32 -05:00
Jeff Layton
c84ce4a7b2 cifs: remove the kmap size limit from wsize
Now that we're not kmapping so much at once, there's no need to cap
the wsize at the amount that can be simultaneously kmapped.

Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:31 -05:00
Pavel Shilovsky
6fc05c25ca CIFS: Add statfs support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:30 -05:00
Pavel Shilovsky
983c88a497 CIFS: Add oplock break support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:30 -05:00
Pavel Shilovsky
2e44b28878 CIFS: Process oplocks for SMB2
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:30 -05:00
Pavel Shilovsky
d324f08d6a CIFS: Add readdir support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:30 -05:00
Pavel Shilovsky
1feeaac753 CIFS: Add set_file_info support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:29 -05:00
Pavel Shilovsky
c839ff244b CIFS: Add SMB2 support for set_file_size
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:29 -05:00
Pavel Shilovsky
568798cc62 CIFS: Add SMB2 support for hardlink operation
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:29 -05:00
Pavel Shilovsky
35143eb5c2 CIFS: Add SMB2 support for rename operation
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:29 -05:00
Pavel Shilovsky
009d344398 CIFS: Add writepage support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:28 -05:00
Pavel Shilovsky
d8e050398d CIFS: Add readpage support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:28 -05:00
Pavel Shilovsky
3331914125 CIFS: Add SMB2 support for cifs_iovec_write
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24 21:46:28 -05:00
Pavel Shilovsky
09a4707e76 CIFS: Add SMB2 support for cifs_iovec_read
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:27 -05:00
Pavel Shilovsky
3a3bab509f CIFS: Add SMB2 r/wsize negotiating
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:27 -05:00
Pavel Shilovsky
7a5cfb1965 CIFS: Add SMB2 support for flush
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:27 -05:00
Pavel Shilovsky
b7546bc54c CIFS: Add SMB2 support for query_file_info
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:26 -05:00
Pavel Shilovsky
f0df737ee8 CIFS: Add open/close file support for SMB2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24 21:46:26 -05:00