Unable to mount CIFS shares

Unable to mount CIFS shares

[Suresh Jayaraman]

After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.

The topmost commit is:

commit d804d41d163c0975d2890c82d7135ada7a2f23a4
Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Date:   Fri Jan 28 15:05:43 2011 -0500

    cifs: don't pop a printk when sending on a socket is interrupted

mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
Password: 
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

Looks like an error caused due to recent crypto changes.
Shirish: any clues?

dmesg o/p
----------

[ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
[ 1079.934781] 
[ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
[ 1079.934785] CIFS VFS: Send error in SessSetup = -2
[ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2

dmesg with cFYI
----------------

[ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0 
[ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
[ 1121.620649] fs/cifs/connect.c: Username: vguest
[ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
[ 1121.623382] fs/cifs/connect.c: Socket created
[ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
[ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
[ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
[ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
[ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
[ 1121.623824] fs/cifs/transport.c: For smb_command 114
[ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
[ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
[ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
[ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
[ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
[ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
[ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
[ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
[ 1121.625024] fs/cifs/sess.c: sess setup type 1
[ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
[ 1121.627044] 
[ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
[ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
[ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
[ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
[ 1121.627052] CIFS VFS: Send error in SessSetup = -2
[ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
[ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
[ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
[ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2


-- 
Suresh Jayaraman

Re: Unable to mount CIFS shares

[Suresh Jayaraman]

On 01/31/2011 04:49 PM, Suresh Jayaraman wrote:
> After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.
> 
> The topmost commit is:
> 
> commit d804d41d163c0975d2890c82d7135ada7a2f23a4
> Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Date:   Fri Jan 28 15:05:43 2011 -0500
> 
>     cifs: don't pop a printk when sending on a socket is interrupted
> 
> mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
> Password: 
> mount error(2): No such file or directory
> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
> 
> Looks like an error caused due to recent crypto changes.
> Shirish: any clues?

Looks like commit ee2c9258501f83d3ed0fd09ce5df1cec53312cf0 is the culprit.


> dmesg o/p
> ----------
> 
> [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
> [ 1079.934781] 
> [ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
> [ 1079.934785] CIFS VFS: Send error in SessSetup = -2
> [ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2
> 
> dmesg with cFYI
> ----------------
> 
> [ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0 
> [ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
> [ 1121.620649] fs/cifs/connect.c: Username: vguest
> [ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
> [ 1121.623382] fs/cifs/connect.c: Socket created
> [ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
> [ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
> [ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
> [ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
> [ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
> [ 1121.623824] fs/cifs/transport.c: For smb_command 114
> [ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
> [ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
> [ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
> [ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
> [ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
> [ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
> [ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
> [ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
> [ 1121.625024] fs/cifs/sess.c: sess setup type 1
> [ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
> [ 1121.627044] 
> [ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
> [ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
> [ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
> [ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
> [ 1121.627052] CIFS VFS: Send error in SessSetup = -2
> [ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
> [ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
> [ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
> [ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2
> 
> 


-- 
Suresh Jayaraman

Re: Unable to mount CIFS shares

[Shirish Pargaonkar]

On Mon, Jan 31, 2011 at 5:19 AM, Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> wrote:
> After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.
>
> The topmost commit is:
>
> commit d804d41d163c0975d2890c82d7135ada7a2f23a4
> Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Date:   Fri Jan 28 15:05:43 2011 -0500
>
>    cifs: don't pop a printk when sending on a socket is interrupted
>
> mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
> Password:
> mount error(2): No such file or directory
> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
>
> Looks like an error caused due to recent crypto changes.
> Shirish: any clues?
>
> dmesg o/p
> ----------
>
> [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
> [ 1079.934781]
> [ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
> [ 1079.934785] CIFS VFS: Send error in SessSetup = -2
> [ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2
>
> dmesg with cFYI
> ----------------
>
> [ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0
> [ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
> [ 1121.620649] fs/cifs/connect.c: Username: vguest
> [ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
> [ 1121.623382] fs/cifs/connect.c: Socket created
> [ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
> [ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
> [ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
> [ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
> [ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
> [ 1121.623824] fs/cifs/transport.c: For smb_command 114
> [ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
> [ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
> [ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
> [ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
> [ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
> [ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
> [ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
> [ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
> [ 1121.625024] fs/cifs/sess.c: sess setup type 1
> [ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
> [ 1121.627044]
> [ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
> [ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
> [ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
> [ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
> [ 1121.627052] CIFS VFS: Send error in SessSetup = -2
> [ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
> [ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
> [ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
> [ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2
>
>
> --
> Suresh Jayaraman
>

Suresh, looks like plaintext authentication is failing?
Does the mount succeed with any of sec options such as
sec=ntlm or sec=ntlmv2 or sec=ntlmssp?

Re: Unable to mount CIFS shares

[Suresh Jayaraman]

On 01/31/2011 07:05 PM, Shirish Pargaonkar wrote:
> On Mon, Jan 31, 2011 at 5:19 AM, Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> wrote:
>> After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.
>>
>> The topmost commit is:
>>
>> commit d804d41d163c0975d2890c82d7135ada7a2f23a4
>> Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> Date:   Fri Jan 28 15:05:43 2011 -0500
>>
>>    cifs: don't pop a printk when sending on a socket is interrupted
>>
>> mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
>> Password:
>> mount error(2): No such file or directory
>> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
>>
>> Looks like an error caused due to recent crypto changes.
>> Shirish: any clues?
>>
>> dmesg o/p
>> ----------
>>
>> [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
>> [ 1079.934781]
>> [ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
>> [ 1079.934785] CIFS VFS: Send error in SessSetup = -2
>> [ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2
>>
>> dmesg with cFYI
>> ----------------
>>
>> [ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0
>> [ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
>> [ 1121.620649] fs/cifs/connect.c: Username: vguest
>> [ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
>> [ 1121.623382] fs/cifs/connect.c: Socket created
>> [ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
>> [ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
>> [ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
>> [ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
>> [ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
>> [ 1121.623824] fs/cifs/transport.c: For smb_command 114
>> [ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
>> [ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
>> [ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
>> [ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
>> [ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
>> [ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
>> [ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
>> [ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
>> [ 1121.625024] fs/cifs/sess.c: sess setup type 1
>> [ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
>> [ 1121.627044]
>> [ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
>> [ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
>> [ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
>> [ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
>> [ 1121.627052] CIFS VFS: Send error in SessSetup = -2
>> [ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
>> [ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
>> [ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
>> [ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2
> 
> Suresh, looks like plaintext authentication is failing?
> Does the mount succeed with any of sec options such as
> sec=ntlm or sec=ntlmv2 or sec=ntlmssp?

Seems the issue is due to missing MD4 module. After I enabled
CONFIG_CRYPTO_MD4 as suggested by Jeff, the issue went away.

Jeff, would send the fix in a bit.


-- 
Suresh Jayaraman

[PATCH] cifs: make CIFS depend on CRYPTO_MD4

[Jeff Layton]

Recently CIFS was changed to use the kernel crypto API for MD4 hashes,
but the Kconfig dependencies were not changed to reflect this.

Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Reported-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
---
 fs/cifs/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 27917a5..023d11b 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -3,6 +3,7 @@ config CIFS
 	depends on INET
 	select NLS
 	select CRYPTO
+	select CRYPTO_MD4
 	select CRYPTO_MD5
 	select CRYPTO_HMAC
 	select CRYPTO_ARC4
-- 
1.7.3.4

Re: Unable to mount CIFS shares

[Shirish Pargaonkar]

On Mon, Jan 31, 2011 at 7:35 AM, Shirish Pargaonkar
<shirishpargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Mon, Jan 31, 2011 at 5:19 AM, Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> wrote:
>> After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.
>>
>> The topmost commit is:
>>
>> commit d804d41d163c0975d2890c82d7135ada7a2f23a4
>> Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> Date:   Fri Jan 28 15:05:43 2011 -0500
>>
>>    cifs: don't pop a printk when sending on a socket is interrupted
>>
>> mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
>> Password:
>> mount error(2): No such file or directory
>> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
>>
>> Looks like an error caused due to recent crypto changes.
>> Shirish: any clues?
>>
>> dmesg o/p
>> ----------
>>
>> [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
>> [ 1079.934781]
>> [ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
>> [ 1079.934785] CIFS VFS: Send error in SessSetup = -2
>> [ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2
>>
>> dmesg with cFYI
>> ----------------
>>
>> [ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0
>> [ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
>> [ 1121.620649] fs/cifs/connect.c: Username: vguest
>> [ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
>> [ 1121.623382] fs/cifs/connect.c: Socket created
>> [ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
>> [ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
>> [ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
>> [ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
>> [ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
>> [ 1121.623824] fs/cifs/transport.c: For smb_command 114
>> [ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
>> [ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
>> [ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
>> [ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
>> [ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
>> [ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
>> [ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
>> [ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
>> [ 1121.625024] fs/cifs/sess.c: sess setup type 1
>> [ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
>> [ 1121.627044]
>> [ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
>> [ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
>> [ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
>> [ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
>> [ 1121.627052] CIFS VFS: Send error in SessSetup = -2
>> [ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
>> [ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
>> [ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
>> [ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2
>>
>>
>> --
>> Suresh Jayaraman
>>
>
> Suresh, looks like plaintext authentication is failing?
> Does the mount succeed with any of sec options such as
> sec=ntlm or sec=ntlmv2 or sec=ntlmssp?
>

This error does not look good
 [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
never seen it. Investigating.

I think I missed the change
 select CRYPTO_MD5
in Kconfig.  Can you try adding it and see if it helps?

Re: [PATCH] cifs: make CIFS depend on CRYPTO_MD4

[Shirish Pargaonkar]

On Mon, Jan 31, 2011 at 7:41 AM, Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
> Recently CIFS was changed to use the kernel crypto API for MD4 hashes,
> but the Kconfig dependencies were not changed to reflect this.
>
> Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Reported-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
> ---
>  fs/cifs/Kconfig |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
> index 27917a5..023d11b 100644
> --- a/fs/cifs/Kconfig
> +++ b/fs/cifs/Kconfig
> @@ -3,6 +3,7 @@ config CIFS
>        depends on INET
>        select NLS
>        select CRYPTO
> +       select CRYPTO_MD4
>        select CRYPTO_MD5
>        select CRYPTO_HMAC
>        select CRYPTO_ARC4
> --
> 1.7.3.4
>
>

Thanks Jeff.  Missed to make this change in an earlier patch.

Reviewed-by: Shirish Pargaonkar <shirishpargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

Re: Unable to mount CIFS shares

[Shirish Pargaonkar]

On Mon, Jan 31, 2011 at 7:42 AM, Shirish Pargaonkar
<shirishpargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Mon, Jan 31, 2011 at 7:35 AM, Shirish Pargaonkar
> <shirishpargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> On Mon, Jan 31, 2011 at 5:19 AM, Suresh Jayaraman <sjayaraman@suse.de> wrote:
>>> After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.
>>>
>>> The topmost commit is:
>>>
>>> commit d804d41d163c0975d2890c82d7135ada7a2f23a4
>>> Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>> Date:   Fri Jan 28 15:05:43 2011 -0500
>>>
>>>    cifs: don't pop a printk when sending on a socket is interrupted
>>>
>>> mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
>>> Password:
>>> mount error(2): No such file or directory
>>> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
>>>
>>> Looks like an error caused due to recent crypto changes.
>>> Shirish: any clues?
>>>
>>> dmesg o/p
>>> ----------
>>>
>>> [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
>>> [ 1079.934781]
>>> [ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
>>> [ 1079.934785] CIFS VFS: Send error in SessSetup = -2
>>> [ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2
>>>
>>> dmesg with cFYI
>>> ----------------
>>>
>>> [ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0
>>> [ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
>>> [ 1121.620649] fs/cifs/connect.c: Username: vguest
>>> [ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
>>> [ 1121.623382] fs/cifs/connect.c: Socket created
>>> [ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
>>> [ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
>>> [ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
>>> [ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
>>> [ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
>>> [ 1121.623824] fs/cifs/transport.c: For smb_command 114
>>> [ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
>>> [ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
>>> [ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
>>> [ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
>>> [ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
>>> [ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
>>> [ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
>>> [ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
>>> [ 1121.625024] fs/cifs/sess.c: sess setup type 1
>>> [ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
>>> [ 1121.627044]
>>> [ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
>>> [ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
>>> [ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
>>> [ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
>>> [ 1121.627052] CIFS VFS: Send error in SessSetup = -2
>>> [ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
>>> [ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
>>> [ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
>>> [ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2
>>>
>>>
>>> --
>>> Suresh Jayaraman
>>>
>>
>> Suresh, looks like plaintext authentication is failing?
>> Does the mount succeed with any of sec options such as
>> sec=ntlm or sec=ntlmv2 or sec=ntlmssp?
>>
>
> This error does not look good
>  [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
> never seen it. Investigating.
>
> I think I missed the change
>  select CRYPTO_MD5
> in Kconfig.  Can you try adding it and see if it helps?
>

Wondering why I never ran into this problem while coming up with the
patch and testing!

Re: Unable to mount CIFS shares

[Suresh Jayaraman]

On 01/31/2011 07:16 PM, Shirish Pargaonkar wrote:
> On Mon, Jan 31, 2011 at 7:42 AM, Shirish Pargaonkar
> <shirishpargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> On Mon, Jan 31, 2011 at 7:35 AM, Shirish Pargaonkar
>> <shirishpargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>>> On Mon, Jan 31, 2011 at 5:19 AM, Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> wrote:
>>>> After updating my tree to HEAD^1, I'm unable to mount CIFS Shares.
>>>>
>>>> The topmost commit is:
>>>>
>>>> commit d804d41d163c0975d2890c82d7135ada7a2f23a4
>>>> Author: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>>>> Date:   Fri Jan 28 15:05:43 2011 -0500
>>>>
>>>>    cifs: don't pop a printk when sending on a socket is interrupted
>>>>
>>>> mount -t cifs //164.99.140.8/share /mnt/cifs/ -o user=vguest
>>>> Password:
>>>> mount error(2): No such file or directory
>>>> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
>>>>
>>>> Looks like an error caused due to recent crypto changes.
>>>> Shirish: any clues?
>>>>
>>>> dmesg o/p
>>>> ----------
>>>>
>>>> [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
>>>> [ 1079.934781]
>>>> [ 1079.934783] CIFS VFS: Error -2 during NTLM authentication
>>>> [ 1079.934785] CIFS VFS: Send error in SessSetup = -2
>>>> [ 1079.934802] CIFS VFS: cifs_mount failed w/return code = -2
>>>>
>>>> dmesg with cFYI
>>>> ----------------
>>>>
>>>> [ 1121.620509] fs/cifs/cifsfs.c: Devname: //164.99.140.8/share/ flags: 0
>>>> [ 1121.620637] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 24 with uid: 0
>>>> [ 1121.620649] fs/cifs/connect.c: Username: vguest
>>>> [ 1121.623357] fs/cifs/connect.c: UNC: \\164.99.140.8\share ip: 164.99.140.8
>>>> [ 1121.623382] fs/cifs/connect.c: Socket created
>>>> [ 1121.623770] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
>>>> [ 1121.623804] fs/cifs/fscache.c: CIFS: get client cookie (0xffff88001a202800/0xffff88001ceb6588)
>>>> [ 1121.623809] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 25 with uid: 0
>>>> [ 1121.623811] fs/cifs/connect.c: Existing smb sess not found
>>>> [ 1121.623819] fs/cifs/cifssmb.c: secFlags 0x7
>>>> [ 1121.623824] fs/cifs/transport.c: For smb_command 114
>>>> [ 1121.623826] fs/cifs/transport.c: Sending smb:  total_len 82
>>>> [ 1121.623961] fs/cifs/connect.c: Demultiplex PID: 2768
>>>> [ 1121.625001] fs/cifs/connect.c: rfc1002 length 0x65
>>>> [ 1121.625007] fs/cifs/misc.c: Calculated size 81 vs length 101 mismatch for mid 1
>>>> [ 1121.625015] fs/cifs/transport.c: sync_mid_result: cmd=114 mid=1 state=4
>>>> [ 1121.625018] fs/cifs/cifssmb.c: Dialect: 2
>>>> [ 1121.625020] fs/cifs/cifssmb.c: negprot rc 0
>>>> [ 1121.625022] fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0x80f3fd TimeAdjust: -19800
>>>> [ 1121.625024] fs/cifs/sess.c: sess setup type 1
>>>> [ 1121.627043] CIFS VFS: mdfour: Crypto md4 allocation error -2
>>>> [ 1121.627044]
>>>> [ 1121.627046] fs/cifs/smbencrypt.c: SMBNTencrypt Can't generate NT hash, error: -2
>>>> [ 1121.627048] fs/cifs/cifsencrypt.c: setup_ntlm_response Can't generate NTLM response, error: -2
>>>> [ 1121.627049] CIFS VFS: Error -2 during NTLM authentication
>>>> [ 1121.627051] fs/cifs/sess.c: ssetup freeing small buf ffff88001d348140
>>>> [ 1121.627052] CIFS VFS: Send error in SessSetup = -2
>>>> [ 1121.627055] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 25) rc = -2
>>>> [ 1121.627060] fs/cifs/fscache.c: CIFS: release client cookie (0xffff88001a202800/0xffff88001ceb6588)
>>>> [ 1121.627066] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 24) rc = -2
>>>> [ 1121.627068] CIFS VFS: cifs_mount failed w/return code = -2
>>>>
>>>>
>>>> --
>>>> Suresh Jayaraman
>>>>
>>>
>>> Suresh, looks like plaintext authentication is failing?
>>> Does the mount succeed with any of sec options such as
>>> sec=ntlm or sec=ntlmv2 or sec=ntlmssp?
>>>
>>
>> This error does not look good
>>  [ 1079.934780] CIFS VFS: mdfour: Crypto md4 allocation error -2
>> never seen it. Investigating.
>>
>> I think I missed the change
>>  select CRYPTO_MD5
>> in Kconfig.  Can you try adding it and see if it helps?
>>
> 
> Wondering why I never ran into this problem while coming up with the
> patch and testing!

Possibly you might have had CONFIG_CRYPTO_MD4 enabled in your kernel
config already. I use a striped down version for kernel config which
didn't have MD4 on.


-- 
Suresh Jayaraman

Re: [PATCH] cifs: make CIFS depend on CRYPTO_MD4

[Suresh Jayaraman]

On 01/31/2011 07:11 PM, Jeff Layton wrote:
> Recently CIFS was changed to use the kernel crypto API for MD4 hashes,
> but the Kconfig dependencies were not changed to reflect this.
> 
> Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Reported-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
> ---
>  fs/cifs/Kconfig |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)

The patch fixed the problem for me.

Reported-and-Tested-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>

> diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
> index 27917a5..023d11b 100644
> --- a/fs/cifs/Kconfig
> +++ b/fs/cifs/Kconfig
> @@ -3,6 +3,7 @@ config CIFS
>  	depends on INET
>  	select NLS
>  	select CRYPTO
> +	select CRYPTO_MD4
>  	select CRYPTO_MD5
>  	select CRYPTO_HMAC
>  	select CRYPTO_ARC4

Re: [PATCH] cifs: make CIFS depend on CRYPTO_MD4

[Steve French]

merged

On Mon, Jan 31, 2011 at 7:59 AM, Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org> wrote:
> On 01/31/2011 07:11 PM, Jeff Layton wrote:
>> Recently CIFS was changed to use the kernel crypto API for MD4 hashes,
>> but the Kconfig dependencies were not changed to reflect this.
>>
>> Signed-off-by: Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> Reported-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
>> ---
>>  fs/cifs/Kconfig |    1 +
>>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> The patch fixed the problem for me.
>
> Reported-and-Tested-by: Suresh Jayaraman <sjayaraman-l3A5Bk7waGM@public.gmane.org>
>
>> diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
>> index 27917a5..023d11b 100644
>> --- a/fs/cifs/Kconfig
>> +++ b/fs/cifs/Kconfig
>> @@ -3,6 +3,7 @@ config CIFS
>>       depends on INET
>>       select NLS
>>       select CRYPTO
>> +     select CRYPTO_MD4
>>       select CRYPTO_MD5
>>       select CRYPTO_HMAC
>>       select CRYPTO_ARC4
>
>



-- 
Thanks,

Steve