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Jeff Layton 04912d6a20 cifs: rename "extended_security" to "global_secflags"
...since that more accurately describes what that variable holds.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-04-26 18:55:33 +00:00
Joe Perches b6b38f704a [CIFS] Neaten cERROR and cFYI macros, reduce text space
Neaten cERROR and cFYI macros, reduce text space
~2.5K

Convert '__FILE__ ": " fmt' to '"%s: " fmt', __FILE__' to save text space
Surround macros with do {} while
Add parentheses to macros
Make statement expression macro from macro with assign
Remove now unnecessary parentheses from cFYI and cERROR uses

defconfig with CIFS support old
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 156012	   1760	    148	 157920	  268e0	fs/cifs/built-in.o

defconfig with CIFS support old
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 153508	   1760	    148	 155416	  25f18	fs/cifs/built-in.o

allyesconfig old:
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 309138	   3864	  74824	 387826	  5eaf2	fs/cifs/built-in.o

allyesconfig new
$ size fs/cifs/built-in.o
   text	   data	    bss	    dec	    hex	filename
 305655	   3864	  74824	 384343	  5dd57	fs/cifs/built-in.o

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-04-21 03:50:45 +00:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Alexander Strakh 1b3859bc9e [CIFS] Memory leak in ntlmv2 hash calculation
in function calc_ntlmv2_hash memory is not released.
1. If in the line 333 we successfully allocate memory and assign it to
pctxt variable:
       pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL);
then we go to line 376 and exit wihout releasing memory pointed to by pctxt
variable.

Add a memory  releasing for pctxt variable before exit from function
calc_ntlmv2_hash.

Signed-off-by: Alexander Strakh <strakh@ispras.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2009-09-01 17:02:24 +00:00
Steve French 6a7f8d36c0 [CIFS] Rename md5 functions to avoid collision with new rt modules
When rt modules were added they (each) included their own md5
with names which collided with the existing names of cifs's md5 functions.

Renaming cifs's md5 modules so we don't collide with them.

> Stephen Rothwell wrote:
> When CIFS is built-in (=y) and staging/rt28[67]0 =y, there are multiple
> definitions of:
>
> build-r8250.out:(.text+0x1d8ad0): multiple definition of `MD5Init'
> build-r8250.out:(.text+0x1dbb30): multiple definition of `MD5Update'
> build-r8250.out:(.text+0x1db9b0): multiple definition of `MD5Final'
>
> all of which need to have more unique identifiers for their global
> symbols (e.g., rt28_md5_init, cifs_md5_init, foo, blah, bar).
>

CC: Greg K-H <gregkh@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2009-01-29 03:32:12 +00:00
Jeff Layton 4e53a3fb98 cifs: have calc_lanman_hash take more granular args
cifs: have calc_lanman_hash take more granular args

We need to use this routine to encrypt passwords associated with the
tcon too. Don't assume that the password will be attached to the
smb_session.

Also, make some of the values in the lower encryption functions
const since they aren't changed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-12-26 02:29:11 +00:00
Steve French bcc55c6664 [CIFS] Fix plaintext authentication
The last eight bytes of the password field were not cleared when doing lanman plaintext password authentication. This patch fixes that.

I tested it with Samba by setting password
encryption to no in the server's smb.conf.  Other servers also can be
configured to force plaintext authentication.    Note that plaintexti
authentication requires setting /proc/fs/cifs/SecurityFlags to 0x30030
on the client (enabling both LANMAN and also plaintext password support).
Also note that LANMAN support (and thus plaintext password support) requires
CONFIG_CIFS_WEAK_PW_HASH to be enabled in menuconfig.

CC: Jeff Layton <jlayton@redhat.com>
CC: Stable Kernel <stable@vger.kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2008-08-27 21:30:22 +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 63d2583f5a [CIFS] Fix walking out end of cifs dacl
Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-11-05 21:46:10 +00:00
Jeff Layton 745542e210 [CIFS] allow cifs_calc_signature2 to deal with a zero length iovec
Currently, cifs_calc_signature2 errors out if it gets a zero-length
iovec. Fix it to silently continue in that case.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-11-03 04:34:04 +00:00
Cyril Gorcunov 8f2376adfb [CIFS] Fix endian conversion problem in posix mkdir
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-10-14 17:58:43 +00:00
Steve French 63135e088a [CIFS] More whitespace/formatting fixes (noticed by checkpatch)
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-17 17:34:02 +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 b609f06ac4 [CIFS] Fix packet signatures for NTLMv2 case
Signed-off-by: Yehuda Sadeh Weinraub <Yehuda.Sadeh@expand.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-07-09 07:55:14 +00:00
Steve French ffdd6e4d16 [CIFS] fix whitespace
More whitespace problems found by checkpatch

Signed-off-by: Steve French <sfrench@us.ibm.com>
2007-06-24 21:15:44 +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 66abda5e1f [CIFS] Fix oops when negotiating lanman and no password specified
Pointed out by Guenter Kukkukk

Signed-of-by: Steve French <sfrench@us.ibm.com>
(cherry picked from bbf33d512da608c7221fec42b56b9ef89c25a5ee commit)
2006-08-11 21:29:13 +00:00
Steve French 1717ffc588 [CIFS] NTLMv2 support part 5
NTLMv2 authentication (stronger authentication than default NTLM) which
many servers support now works.  There was a problem with the construction
of the security blob in the older code.  Currently requires
	/proc/fs/cifs/Experimental to be set to 2
and
	/proc/fs/cifs/SecurityFlags to be set to 0x4004 (to require using
	NTLMv2 instead of default of NTLM)

Next we will check signing to make sure optional NTLMv2 packet signing also
works.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-08 05:41:32 +00:00
Steve French a8ee03441f [CIFS] NTLMv2 support part 4
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-05 23:34:19 +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 bdc4bf6e8a [CIFS] Support for older servers which require plaintext passwords
disabled by default, but can be enabled via proc for servers which
require such support.  Also includes support for setting security
flags for cifs.  See fs/cifs/README

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-06-02 22:57:13 +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 e9917a000f [CIFS] Incorrect signature sent on SMB Read
Fixes Samba bug 3621 and kernel.org bug 6147

For servers which require SMB/CIFS packet signing, we were sending the
wrong signature (all zeros) on SMB Read request.  The new cifs routine
to do signatures across an iovec was not complete - and SMB Read, unlike
the new SMBWrite2, did not fall back to the older routine (ie use
SendReceive vs. the more efficient SendReceive2 ie used the older
cifs_sign_smb vs. the disabled  cifs_sign_smb2) for calculating signatures.

This finishes up cifs_sign_smb2/cifs_calc_signature2 so that the callers
of SendReceive2 can get SMB/CIFS packet signatures.

Now that cifs_sign_smb2 is supported, we could start using it in
the write path but this smaller fix does not include the change
to use SMBWrite2 when signatures are required (which when enabled
will make more Writes more efficient and alloc less memory).
Currently Write2 is only used when signatures are not
required at the moment but after more testing we will enable
that as well).

Thanks to James Slepicka and Sam Flory for initial investigation.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-03-31 21:22:00 +00:00
Steve French 5815449d1b [CIFS] SessionSetup cleanup part 2
The cifs session setup code has three cases, and a fourth for backlevel
LANMAN2 style session setup needed to be added.  This new session setup
implmentation will eventually replace the other three and should be
easier to read while fixing a few minor problems (not setting
the LARGE READ/WRITEX flags when NTLMSSP was negotiated for example) and
adding support for NTLMv2 (which will be added with the next patch. In the
meantime, this code is marked in an CONFIG_CIFS_EXPERIMENTAL block and will
not be turned on by default until it is tested against more server types.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-02-14 01:36:20 +00:00
Steve French 12b3b8ffb5 [CIFS] Cleanup NTLMSSP session setup handling
Fix to hash NTLMv2 properly will follow.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-02-09 21:12:47 +00:00
Steve French 84afc29b18 [CIFS] Readpages and readir performance improvements - eliminate extra
memcpy.  Part 1

Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-12-02 13:32:45 -08:00
Steve French e89dc92096 [CIFS] Cleanup sparse warnings for unicode little endian casts
Following Shaggy's suggestion, do a better job on the unicode string
handling routines in cifs in specifying that the wchar_t are really
little endian widechars (__le16).

Signed-off-by: Steve French <sfrench@us.ibm.com>
2005-11-11 15:18:19 -08:00
Steve French ad009ac965 [PATCH] cifs: Fix multiuser packet signing to use the right sequence number and mac session key
Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-28 22:41:05 -07:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
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!
2005-04-16 15:20:36 -07:00