* Unable to access (remote) DFS links in DFS root
@ 2010-11-30 21:06 Robbert Kouprie
0 siblings, 0 replies; only message in thread
From: Robbert Kouprie @ 2010-11-30 21:06 UTC (permalink / raw)
To: linux-cifs-u79uwXL29TY76Z2rM5mHXA
Hi again,
I'm having problems accessing remote DFS links on our DFS root, using
mount.cifs.
We have a DFS root that has links pointing to a variety of shares on
different file servers.
>From MS Windows clients and using smbclient the shares are accessible
perfectly. Using mount.cifs however I am not able to see the contents of
the remote shares.
Surprisingly, I get a different error when mounting the DFS root with
sec=ntlm, than I get when mounting with sec=ntlmv2.
# mount -t cifs //foxdft13.fox.local/company /mnt/bla/ -o
credentials=/creds,sec=ntlm
# ls -la /mnt/bla/Global/
ls: cannot access /mnt/bla/Global/: Input/output error
# mount -t cifs //foxdft13.fox.local/company /mnt/bla/ -o
credentials=/creds,sec=ntlmv2
# ls -la /mnt/bla/Global/
ls: cannot access /mnt/bla/Global/: Permission denied
Kernel is 2.6.37-rc3. mount.cifs is 4.5. keyutils are installed and
working. DFS root is on foxdft13. The "Global" share is on foxdft08.
Note that the foxdft08 server is configured to accept NTLMv2 only (not
sure if that is relevant when using DFS links), while the DFS root
server will allow both NTLM and NTLMv2.
pcap's are available on request.
Debug log of "ls -la /mnt/bla/Global/", on sec=ntlm:
fs/cifs/dir.c: CIFS VFS: in cifs_lookup as Xid: 553 with uid: 0
fs/cifs/dir.c: parent inode = 0xe289a62c name is: Global and dentry =
0xdfe25330
fs/cifs/dir.c: NULL inode in lookup
fs/cifs/dir.c: Full path: \\foxdft13.fox.local\company\Global inode =
0x (null)
fs/cifs/inode.c: Getting info on \\foxdft13.fox.local\company\Global
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb: total_len 148
fs/cifs/connect.c: rfc1002 length 0x27
fs/cifs/connect.c: invalid transact2 word count
Status code returned 0xc0000257 NT_STATUS_PATH_NOT_COVERED
fs/cifs/netmisc.c: Mapping smb error code 3 to POSIX err -66
fs/cifs/cifssmb.c: Send error in QPathInfo = -66
fs/cifs/inode.c: creating fake fattr for DFS referral
fs/cifs/cifssmb.c: In GetSrvInodeNum for
\\foxdft13.fox.local\company\Global
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb: total_len 148
fs/cifs/connect.c: rfc1002 length 0x27
fs/cifs/connect.c: invalid transact2 word count
Status code returned 0xc0000257 NT_STATUS_PATH_NOT_COVERED
fs/cifs/netmisc.c: Mapping smb error code 3 to POSIX err -66
fs/cifs/cifssmb.c: error -66 in QueryInternalInfo
fs/cifs/inode.c: GetSrvInodeNum rc -66
CIFS VFS: Autodisabling the use of server inode numbers on
\\foxdft13.fox.local\company. This server doesn't seem to support them
properly. Hardlinks will not be recognized on this mount. Consider
mounting with the "noserverino" option to silence this message.
fs/cifs/inode.c: looking for uniqueid=58
fs/cifs/inode.c: cifs_revalidate_cache: revalidating inode 58
fs/cifs/inode.c: cifs_revalidate_cache: inode 58 is new
fs/cifs/inode.c: inode 0xc63d492c old_time=0 new_time=30762153
fs/cifs/dir.c: CIFS VFS: leaving cifs_lookup (xid = 553) rc = 0
fs/cifs/cifs_dfs_ref.c: in cifs_dfs_follow_mountpoint
fs/cifs/cifs_dfs_ref.c: CIFS VFS: in cifs_dfs_follow_mountpoint as Xid:
554 with uid: 0
fs/cifs/transport.c: For smb_command 117
fs/cifs/transport.c: Sending smb: total_len 88
fs/cifs/connect.c: rfc1002 length 0x3c
fs/cifs/connect.c: CIFS Tcon rc = 0 ipc_tid = 14339
fs/cifs/cifssmb.c: In GetDFSRefer the path
\foxdft13.fox.local\company\Global
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb: total_len 144
fs/cifs/connect.c: rfc1002 length 0x124
fs/cifs/cifssmb.c: Decoding GetDFSRefer response BCC: 233 Offset 56
fs/cifs/cifssmb.c: num_referrals: 1 dfs flags: 0x2 ...
fs/cifs/cifs_dfs_ref.c: DFS: ref path: \foxdft13.fox.local\company\Global
fs/cifs/cifs_dfs_ref.c: DFS: node path: \foxdft08\company\Global
fs/cifs/cifs_dfs_ref.c: DFS: fl: 2, srv_type: 0
fs/cifs/cifs_dfs_ref.c: DFS: ref_flags: 0, path_consumed: 34
fs/cifs/dns_resolve.c: dns_resolve_server_name_to_ip: resolved:
foxdft08 to 10.0.0.72
fs/cifs/cifsfs.c: Devname: \\foxdft08\company flags: 0
fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 555 with uid: 0
fs/cifs/connect.c: prefix path /Global
fs/cifs/connect.c: Username: vmtest
fs/cifs/connect.c: UNC: \\foxdft08\company ip: 10.0.0.72
fs/cifs/connect.c: Socket created
fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 556 with uid: 0
fs/cifs/connect.c: Existing smb sess not found
fs/cifs/cifssmb.c: secFlags 0x2
fs/cifs/connect.c: Demultiplex PID: 18750
fs/cifs/transport.c: For smb_command 114
fs/cifs/transport.c: Sending smb: total_len 82
fs/cifs/connect.c: rfc1002 length 0x6b
fs/cifs/cifssmb.c: Dialect: 2
fs/cifs/cifssmb.c: Signing disabled
fs/cifs/cifssmb.c: negprot rc 0
fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0xf3fd TimeAdjust: 3600
fs/cifs/sess.c: sess setup type 1
fs/cifs/transport.c: For smb_command 115
fs/cifs/transport.c: Sending smb: total_len 232
fs/cifs/connect.c: rfc1002 length 0x27
fs/cifs/connect.c: Reconnect after unexpected peek error 0
fs/cifs/connect.c: Reconnecting tcp session
fs/cifs/connect.c: State: 0x3 Flags: 0x0
fs/cifs/connect.c: Post shutdown state: 0x3 Flags: 0x0
fs/cifs/connect.c: Socket created
fs/cifs/netmisc.c: Mapping smb error code 31 to POSIX err -5
fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
fs/cifs/sess.c: ssetup freeing small buf f71edc00
CIFS VFS: Send error in SessSetup = -5
fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 556) rc = -5
fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 555) rc = -5
CIFS VFS: cifs_mount failed w/return code = -5
fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
fs/cifs/transport.c: Sending smb: total_len 72
fs/cifs/cifs_dfs_ref.c: cifs_dfs_follow_mountpoint:
cifs_dfs_do_refmount:\foxdft08\company\Global , mnt:fffffffb
fs/cifs/cifs_dfs_ref.c: CIFS VFS: leaving cifs_dfs_follow_mountpoint
(xid = 554) rc = -5
fs/cifs/cifs_dfs_ref.c: leaving cifs_dfs_follow_mountpoint
Debug log of "ls -la /mnt/bla/Global/", on sec=ntlmv2:
fs/cifs/dir.c: CIFS VFS: in cifs_lookup as Xid: 563 with uid: 0
fs/cifs/dir.c: parent inode = 0xc394a1ac name is: Global and dentry =
0xd1e0aa18
fs/cifs/dir.c: NULL inode in lookup
fs/cifs/dir.c: Full path: \\foxdft13.fox.local\company\Global inode =
0x (null)
fs/cifs/inode.c: Getting info on \\foxdft13.fox.local\company\Global
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb: total_len 148
fs/cifs/connect.c: rfc1002 length 0x27
fs/cifs/connect.c: invalid transact2 word count
Status code returned 0xc0000257 NT_STATUS_PATH_NOT_COVERED
fs/cifs/netmisc.c: Mapping smb error code 3 to POSIX err -66
fs/cifs/cifssmb.c: Send error in QPathInfo = -66
fs/cifs/inode.c: creating fake fattr for DFS referral
fs/cifs/cifssmb.c: In GetSrvInodeNum for
\\foxdft13.fox.local\company\Global
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb: total_len 148
fs/cifs/connect.c: rfc1002 length 0x27
fs/cifs/connect.c: invalid transact2 word count
Status code returned 0xc0000257 NT_STATUS_PATH_NOT_COVERED
fs/cifs/netmisc.c: Mapping smb error code 3 to POSIX err -66
fs/cifs/cifssmb.c: error -66 in QueryInternalInfo
fs/cifs/inode.c: GetSrvInodeNum rc -66
CIFS VFS: Autodisabling the use of server inode numbers on
\\foxdft13.fox.local\company. This server doesn't seem to support them
properly. Hardlinks will not be recognized on this mount. Consider
mounting with the "noserverino" option to silence this message.
fs/cifs/inode.c: looking for uniqueid=59
fs/cifs/inode.c: cifs_revalidate_cache: revalidating inode 59
fs/cifs/inode.c: cifs_revalidate_cache: inode 59 is new
fs/cifs/inode.c: inode 0xe289a7ac old_time=0 new_time=30796734
fs/cifs/dir.c: CIFS VFS: leaving cifs_lookup (xid = 563) rc = 0
fs/cifs/cifs_dfs_ref.c: in cifs_dfs_follow_mountpoint
fs/cifs/cifs_dfs_ref.c: CIFS VFS: in cifs_dfs_follow_mountpoint as Xid:
564 with uid: 0
fs/cifs/transport.c: For smb_command 117
fs/cifs/transport.c: Sending smb: total_len 88
fs/cifs/connect.c: rfc1002 length 0x3c
fs/cifs/connect.c: CIFS Tcon rc = 0 ipc_tid = 20487
fs/cifs/cifssmb.c: In GetDFSRefer the path
\foxdft13.fox.local\company\Global
fs/cifs/transport.c: For smb_command 50
fs/cifs/transport.c: Sending smb: total_len 144
fs/cifs/connect.c: rfc1002 length 0x124
fs/cifs/cifssmb.c: Decoding GetDFSRefer response BCC: 233 Offset 56
fs/cifs/cifssmb.c: num_referrals: 1 dfs flags: 0x2 ...
fs/cifs/cifs_dfs_ref.c: DFS: ref path: \foxdft13.fox.local\company\Global
fs/cifs/cifs_dfs_ref.c: DFS: node path: \foxdft08\company\Global
fs/cifs/cifs_dfs_ref.c: DFS: fl: 2, srv_type: 0
fs/cifs/cifs_dfs_ref.c: DFS: ref_flags: 0, path_consumed: 34
fs/cifs/dns_resolve.c: dns_resolve_server_name_to_ip: resolved:
foxdft08 to 10.0.0.72
fs/cifs/cifsfs.c: Devname: \\foxdft08\company flags: 0
fs/cifs/connect.c: CIFS VFS: in cifs_mount as Xid: 565 with uid: 0
fs/cifs/connect.c: prefix path /Global
fs/cifs/connect.c: Username: vmtest
fs/cifs/connect.c: UNC: \\foxdft08\company ip: 10.0.0.72
fs/cifs/connect.c: Socket created
fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 rcvtimeo 0x6d6
fs/cifs/connect.c: CIFS VFS: in cifs_get_smb_ses as Xid: 566 with uid: 0
fs/cifs/connect.c: Existing smb sess not found
fs/cifs/cifssmb.c: secFlags 0x4
fs/cifs/transport.c: For smb_command 114
fs/cifs/transport.c: Sending smb: total_len 82
fs/cifs/connect.c: Demultiplex PID: 18760
fs/cifs/connect.c: rfc1002 length 0x6b
fs/cifs/cifssmb.c: Dialect: 2
fs/cifs/cifssmb.c: Signing disabled
fs/cifs/cifssmb.c: negprot rc 0
fs/cifs/connect.c: Security Mode: 0x3 Capabilities: 0xf3fd TimeAdjust: 3600
fs/cifs/sess.c: sess setup type 2
fs/cifs/transport.c: For smb_command 115
fs/cifs/transport.c: Sending smb: total_len 346
fs/cifs/connect.c: rfc1002 length 0x27
Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
fs/cifs/netmisc.c: Mapping smb error code 5 to POSIX err -13
fs/cifs/misc.c: Null buffer passed to cifs_small_buf_release
fs/cifs/sess.c: ssetup freeing small buf f71ecfc0
CIFS VFS: Send error in SessSetup = -13
fs/cifs/connect.c: CIFS VFS: leaving cifs_get_smb_ses (xid = 566) rc = -13
fs/cifs/connect.c: CIFS VFS: leaving cifs_mount (xid = 565) rc = -13
CIFS VFS: cifs_mount failed w/return code = -13
fs/cifs/cifs_dfs_ref.c: cifs_dfs_follow_mountpoint:
cifs_dfs_do_refmount:\foxdft08\company\Global , mnt:fffffff3
fs/cifs/cifs_dfs_ref.c: CIFS VFS: leaving cifs_dfs_follow_mountpoint
(xid = 564) rc = -13
fs/cifs/cifs_dfs_ref.c: leaving cifs_dfs_follow_mountpoint
Any ideas on how to troubleshoot this further?
Best regards,
Robbert
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2010-11-30 21:06 Unable to access (remote) DFS links in DFS root Robbert Kouprie
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