Mounting SMB2 fails with -EINVAL on 3.7-rc7

DISCUSSION Suresh Jayaraman 3 participants 8 messages Nov 27, 2012 – Nov 29, 2012 7 messages not in the archive

Subsystems (2)

SMB client (CIFS) Kernel SMB3 server (ksmbd)

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Suresh Jayaraman

author

2012-11-27 09:21 UTC #0 lore raw

When I try to mount a Samba (3.6.7) share via SMB2, the mount is failing.

mount -t cifs -o vers=2.1,user=joe //server/share /mnt mount error (22): Invalid Argument

Looks like Negotiate Protocol is failing but not sure why.

Here's the cFYI snip:

[ 2895.256899] CIFS VFS: cifs_mount failed w/return code = -22
[ 2904.421947] fs/cifs/cifsfs.c: Devname: //164.99.140.187/local/ flags: 0 
[ 2904.421999] fs/cifs/connect.c: Username: cg
[ 2904.427252] fs/cifs/connect.c: file mode: 0x1ed  dir mode: 0x1ed
[ 2904.427434] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 15 with uid: 0
[ 2904.427439] fs/cifs/connect.c: UNC: \\164.99.140.187\local ip: 164.99.140.187
[ 2904.427489] fs/cifs/connect.c: Socket created
[ 2904.427493] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x1b58
[ 2904.428276] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 16 with uid: 0
[ 2904.428281] fs/cifs/connect.c: Existing smb sess not found
[ 2904.428288] fs/cifs/smb2pdu.c: Negotiate protocol
[ 2904.428295] fs/cifs/smb2pdu.c: sec_flags 0x87
[ 2904.428301] fs/cifs/transport.c: Sending smb: smb_len=102
[ 2904.428460] fs/cifs/connect.c: Demultiplex PID: 1899
[ 2904.429585] fs/cifs/connect.c: RFC1002 header 0x49
[ 2904.429593] fs/cifs/smb2misc.c: smb2_check_message length: 0x4d, smb_buf_length: 0x49
[ 2904.429596] fs/cifs/smb2misc.c: SMB2 data length 0 offset 0
[ 2904.429597] fs/cifs/smb2misc.c: SMB2 len 77
[ 2904.429648] fs/cifs/transport.c: cifs_sync_mid_result: cmd=0 mid=0 state=4
[ 2904.429654] Status code returned 0xc000000d STATUS_INVALID_PARAMETER
[ 2904.429661] fs/cifs/smb2maperror.c: Mapping SMB2 status code -1073741811 to POSIX err -22
[ 2904.429663] fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
[ 2904.429667] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 16) rc = -22
[ 2904.429883] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 15) rc = -22
[ 2904.429885] CIFS VFS: cifs_mount failed w/return code = -22

Is this a known issue?

Signature · 1 line

Suresh Jayaraman

Pavel Shilovsky

2012-11-27 12:56 UTC #2 lore raw

In reply to a message not in the archive

2012/11/27 Suresh Jayaraman <sjayaraman-IBi9RG/[email protected]>:

Quoted 39 lines

When I try to mount a Samba (3.6.7) share via SMB2, the mount is failing.

mount -t cifs -o vers=2.1,user=joe //server/share /mnt mount error (22): Invalid Argument

Looks like Negotiate Protocol is failing but not sure why.

Here's the cFYI snip:

[ 2895.256899] CIFS VFS: cifs_mount failed w/return code = -22
[ 2904.421947] fs/cifs/cifsfs.c: Devname: //164.99.140.187/local/ flags: 0
[ 2904.421999] fs/cifs/connect.c: Username: cg
[ 2904.427252] fs/cifs/connect.c: file mode: 0x1ed  dir mode: 0x1ed
[ 2904.427434] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 15 with uid: 0
[ 2904.427439] fs/cifs/connect.c: UNC: \\164.99.140.187\local ip: 164.99.140.187
[ 2904.427489] fs/cifs/connect.c: Socket created
[ 2904.427493] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x1b58
[ 2904.428276] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 16 with uid: 0
[ 2904.428281] fs/cifs/connect.c: Existing smb sess not found
[ 2904.428288] fs/cifs/smb2pdu.c: Negotiate protocol
[ 2904.428295] fs/cifs/smb2pdu.c: sec_flags 0x87
[ 2904.428301] fs/cifs/transport.c: Sending smb: smb_len=102
[ 2904.428460] fs/cifs/connect.c: Demultiplex PID: 1899
[ 2904.429585] fs/cifs/connect.c: RFC1002 header 0x49
[ 2904.429593] fs/cifs/smb2misc.c: smb2_check_message length: 0x4d, smb_buf_length: 0x49
[ 2904.429596] fs/cifs/smb2misc.c: SMB2 data length 0 offset 0
[ 2904.429597] fs/cifs/smb2misc.c: SMB2 len 77
[ 2904.429648] fs/cifs/transport.c: cifs_sync_mid_result: cmd=0 mid=0 state=4
[ 2904.429654] Status code returned 0xc000000d STATUS_INVALID_PARAMETER
[ 2904.429661] fs/cifs/smb2maperror.c: Mapping SMB2 status code -1073741811 to POSIX err -22
[ 2904.429663] fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
[ 2904.429667] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 16) rc = -22
[ 2904.429883] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 15) rc = -22
[ 2904.429885] CIFS VFS: cifs_mount failed w/return code = -22

Is this a known issue?

Quoted 6 lines

--
Suresh Jayaraman
--
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Samba doesn't support SMB2.1 protocol - 2.0 only. We need to add a mount option vers=2.0 to enable Samba support.

Signature · 2 lines

Best regards,
Pavel Shilovsky.

Suresh Jayaraman

author

2012-11-27 13:00 UTC #4 lore raw

In reply to a message not in the archive

Quoted 37 lines · Pavel Shilovsky

2012/11/27 Suresh Jayaraman <sjayaraman-IBi9RG/[email protected]>:

Quoted 36 lines

When I try to mount a Samba (3.6.7) share via SMB2, the mount is failing.

mount -t cifs -o vers=2.1,user=joe //server/share /mnt mount error (22): Invalid Argument

Looks like Negotiate Protocol is failing but not sure why.

Here's the cFYI snip:

[ 2895.256899] CIFS VFS: cifs_mount failed w/return code = -22
[ 2904.421947] fs/cifs/cifsfs.c: Devname: //164.99.140.187/local/ flags: 0
[ 2904.421999] fs/cifs/connect.c: Username: cg
[ 2904.427252] fs/cifs/connect.c: file mode: 0x1ed  dir mode: 0x1ed
[ 2904.427434] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 15 with uid: 0
[ 2904.427439] fs/cifs/connect.c: UNC: \\164.99.140.187\local ip: 164.99.140.187
[ 2904.427489] fs/cifs/connect.c: Socket created
[ 2904.427493] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x1b58
[ 2904.428276] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 16 with uid: 0
[ 2904.428281] fs/cifs/connect.c: Existing smb sess not found
[ 2904.428288] fs/cifs/smb2pdu.c: Negotiate protocol
[ 2904.428295] fs/cifs/smb2pdu.c: sec_flags 0x87
[ 2904.428301] fs/cifs/transport.c: Sending smb: smb_len=102
[ 2904.428460] fs/cifs/connect.c: Demultiplex PID: 1899
[ 2904.429585] fs/cifs/connect.c: RFC1002 header 0x49
[ 2904.429593] fs/cifs/smb2misc.c: smb2_check_message length: 0x4d, smb_buf_length: 0x49
[ 2904.429596] fs/cifs/smb2misc.c: SMB2 data length 0 offset 0
[ 2904.429597] fs/cifs/smb2misc.c: SMB2 len 77
[ 2904.429648] fs/cifs/transport.c: cifs_sync_mid_result: cmd=0 mid=0 state=4
[ 2904.429654] Status code returned 0xc000000d STATUS_INVALID_PARAMETER
[ 2904.429661] fs/cifs/smb2maperror.c: Mapping SMB2 status code -1073741811 to POSIX err -22
[ 2904.429663] fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
[ 2904.429667] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 16) rc = -22
[ 2904.429883] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 15) rc = -22
[ 2904.429885] CIFS VFS: cifs_mount failed w/return code = -22

Quoted 5 lines

Quoted 2 lines
Is this a known issue?
Samba doesn't support SMB2.1 protocol - 2.0 only. We need to add a mount option vers=2.0 to enable Samba support.

Ah, ok. I see

enum smb_version {
        Smb_1 = 1,
        Smb_21,
        Smb_30,
};

So, at the current state we won't be able to use smb2 client with Samba server, right?

Thanks

Signature · 1 line

Suresh Jayaraman

Pavel Shilovsky

2012-11-27 13:21 UTC #6 lore raw

In reply to a message not in the archive

2012/11/27 Suresh Jayaraman <sjayaraman-IBi9RG/[email protected]>:

Quoted 46 lines · Pavel Shilovsky

Quoted 37 lines

2012/11/27 Suresh Jayaraman <sjayaraman-IBi9RG/[email protected]>:

Quoted 36 lines

When I try to mount a Samba (3.6.7) share via SMB2, the mount is failing.

mount -t cifs -o vers=2.1,user=joe //server/share /mnt mount error (22): Invalid Argument

Looks like Negotiate Protocol is failing but not sure why.

Here's the cFYI snip:

[ 2895.256899] CIFS VFS: cifs_mount failed w/return code = -22
[ 2904.421947] fs/cifs/cifsfs.c: Devname: //164.99.140.187/local/ flags: 0
[ 2904.421999] fs/cifs/connect.c: Username: cg
[ 2904.427252] fs/cifs/connect.c: file mode: 0x1ed  dir mode: 0x1ed
[ 2904.427434] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 15 with uid: 0
[ 2904.427439] fs/cifs/connect.c: UNC: \\164.99.140.187\local ip: 164.99.140.187
[ 2904.427489] fs/cifs/connect.c: Socket created
[ 2904.427493] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x1b58
[ 2904.428276] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 16 with uid: 0
[ 2904.428281] fs/cifs/connect.c: Existing smb sess not found
[ 2904.428288] fs/cifs/smb2pdu.c: Negotiate protocol
[ 2904.428295] fs/cifs/smb2pdu.c: sec_flags 0x87
[ 2904.428301] fs/cifs/transport.c: Sending smb: smb_len=102
[ 2904.428460] fs/cifs/connect.c: Demultiplex PID: 1899
[ 2904.429585] fs/cifs/connect.c: RFC1002 header 0x49
[ 2904.429593] fs/cifs/smb2misc.c: smb2_check_message length: 0x4d, smb_buf_length: 0x49
[ 2904.429596] fs/cifs/smb2misc.c: SMB2 data length 0 offset 0
[ 2904.429597] fs/cifs/smb2misc.c: SMB2 len 77
[ 2904.429648] fs/cifs/transport.c: cifs_sync_mid_result: cmd=0 mid=0 state=4
[ 2904.429654] Status code returned 0xc000000d STATUS_INVALID_PARAMETER
[ 2904.429661] fs/cifs/smb2maperror.c: Mapping SMB2 status code -1073741811 to POSIX err -22
[ 2904.429663] fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
[ 2904.429667] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 16) rc = -22
[ 2904.429883] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 15) rc = -22
[ 2904.429885] CIFS VFS: cifs_mount failed w/return code = -22

Quoted 5 lines

Quoted 2 lines
Is this a known issue?
Samba doesn't support SMB2.1 protocol - 2.0 only. We need to add a mount option vers=2.0 to enable Samba support.

Ah, ok. I see

Quoted 8 lines

enum smb_version {
        Smb_1 = 1,
        Smb_21,
        Smb_30,
};
So, at the current state we won't be able to use smb2 client with Samba server, right?

Yes. Steve, any plans on returning SMB2.0 support to the client? (it was removed after we decide that vers=2.1 mount option should negotiate 2.1 protocol only).

Signature · 2 lines

Best regards,
Pavel Shilovsky.

Steve French

2012-11-27 16:27 UTC #8 lore raw

In reply to a message not in the archive

I have a patch for 2.0 support that was in my for-next branch for a little bit but I decided was too late for 3.7

Quoted 63 lines · Pavel Shilovsky

2012/11/27 Suresh Jayaraman <sjayaraman-IBi9RG/[email protected]>:
Quoted 46 lines · Pavel Shilovsky
Quoted 37 lines
2012/11/27 Suresh Jayaraman <sjayaraman-IBi9RG/[email protected]>:
Quoted 36 lines
When I try to mount a Samba (3.6.7) share via SMB2, the mount is failing.
mount -t cifs -o vers=2.1,user=joe //server/share /mnt mount error (22): Invalid Argument
Looks like Negotiate Protocol is failing but not sure why.
Here's the cFYI snip:
[ 2895.256899] CIFS VFS: cifs_mount failed w/return code = -22
[ 2904.421947] fs/cifs/cifsfs.c: Devname: //164.99.140.187/local/ flags: 0
[ 2904.421999] fs/cifs/connect.c: Username: cg
[ 2904.427252] fs/cifs/connect.c: file mode: 0x1ed  dir mode: 0x1ed
[ 2904.427434] fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 15 with uid: 0
[ 2904.427439] fs/cifs/connect.c: UNC: \\164.99.140.187\local ip: 164.99.140.187
[ 2904.427489] fs/cifs/connect.c: Socket created
[ 2904.427493] fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x1b58
[ 2904.428276] fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 16 with uid: 0
[ 2904.428281] fs/cifs/connect.c: Existing smb sess not found
[ 2904.428288] fs/cifs/smb2pdu.c: Negotiate protocol
[ 2904.428295] fs/cifs/smb2pdu.c: sec_flags 0x87
[ 2904.428301] fs/cifs/transport.c: Sending smb: smb_len=102
[ 2904.428460] fs/cifs/connect.c: Demultiplex PID: 1899
[ 2904.429585] fs/cifs/connect.c: RFC1002 header 0x49
[ 2904.429593] fs/cifs/smb2misc.c: smb2_check_message length: 0x4d, smb_buf_length: 0x49
[ 2904.429596] fs/cifs/smb2misc.c: SMB2 data length 0 offset 0
[ 2904.429597] fs/cifs/smb2misc.c: SMB2 len 77
[ 2904.429648] fs/cifs/transport.c: cifs_sync_mid_result: cmd=0 mid=0 state=4
[ 2904.429654] Status code returned 0xc000000d STATUS_INVALID_PARAMETER
[ 2904.429661] fs/cifs/smb2maperror.c: Mapping SMB2 status code -1073741811 to POSIX err -22
[ 2904.429663] fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
[ 2904.429667] fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 16) rc = -22
[ 2904.429883] fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 15) rc = -22
[ 2904.429885] CIFS VFS: cifs_mount failed w/return code = -22
Quoted 5 lines
Quoted 2 lines
Is this a known issue?
Samba doesn't support SMB2.1 protocol - 2.0 only. We need to add a mount option vers=2.0 to enable Samba support.
Ah, ok. I see
Quoted 8 lines
enum smb_version {
        Smb_1 = 1,
        Smb_21,
        Smb_30,
};
So, at the current state we won't be able to use smb2 client with Samba server, right?
Yes. Steve, any plans on returning SMB2.0 support to the client? (it was removed after we decide that vers=2.1 mount option should negotiate 2.1 protocol only).
--
Best regards,
Pavel Shilovsky.

Signature · 3 lines

Thanks,

Steve

Pavel Shilovsky

2012-11-28 13:49 UTC #10 lore raw

In reply to a message not in the archive

2012/11/27 Steve French <[email protected]>:

Quoted 2 lines

I have a patch for 2.0 support that was in my for-next branch for a little bit but I decided was too late for 3.7

Are your going to re-add it again for 3.8? (I think it's important to support Samba - my be we should backport it to v3.7 too during stable series)

Signature · 2 lines

Best regards,
Pavel Shilovsky.

Suresh Jayaraman

author

2012-11-28 16:08 UTC #12 lore raw

In reply to a message not in the archive

Quoted 8 lines · Pavel Shilovsky

2012/11/27 Steve French <[email protected]>:
Quoted 2 lines
I have a patch for 2.0 support that was in my for-next branch for a little bit but I decided was too late for 3.7
Are your going to re-add it again for 3.8? (I think it's important to support Samba - my be we should backport it to v3.7 too during stable series)

While I agree that it is quite important for smb client to work with Samba, I'm not sure whether this patch would meet the -stable criteria...

Signature · 1 line

Suresh Jayaraman

Steve French

2012-11-29 05:38 UTC #14 lore raw

In reply to a message not in the archive

The patch for 2.02 dialect support was reviewed by Pavel and is now in cifs-2.6.git for next (destined for 3.8).

Quoted 15 lines · Suresh Jayaraman

Quoted 8 lines · Pavel Shilovsky
2012/11/27 Steve French <[email protected]>:
Quoted 2 lines
I have a patch for 2.0 support that was in my for-next branch for a little bit but I decided was too late for 3.7
Are your going to re-add it again for 3.8? (I think it's important to support Samba - my be we should backport it to v3.7 too during stable series)
While I agree that it is quite important for smb client to work with Samba, I'm not sure whether this patch would meet the -stable criteria...
--
Suresh Jayaraman

Signature · 3 lines

Thanks,

Steve