Re: [rdiff-backup-users] CIFS filesystem and symbolic links to other directories

[Ian Jones]

Output below. The droboshare is pretty much a closed system, all you can 
do is set your login credentials, ip address and share name.

Andrew Ferguson a écrit :
> On Jul 6, 2008, at 6:19 AM, Ian Jones wrote:
>
> > Hello. I have the following problem.
> >
> > I am trying to use rdiff-backup to backup from a Linux (Debian lenny) 
> > machine to a CIFS mounted filesystem (which is located on a 
> > Droboshare - http://www.drobo.com.)
>
>
> Ian,
>
> One more thing: You should find out what version of Samba (I presume) 
> is running on the Droboshare. I believe there are ways to determine 
> that when doing the CIFS mount (look in your system logs). It may 
> require an `echo 1 > /proc/fs/cifs/cifsFYI` and remounting. Google 
> around for more on that.
>
> I ask because I found this interesting nugget in the CIFS TODO list 
> under "Known Bugs":
>
> 1) existing symbolic links (Windows reparse points) are recognized but 
> can not be created remotely. They are implemented for Samba and those 
> that support the CIFS Unix extensions, although earlier versions of 
> Samba overly restrict the pathnames.
>
>
> 'overly restrict pathnames' sounds a bit like what you are 
> experiencing...
# cat /proc/fs/cifs/cifsFYI
0
# umount /drobo/
# echo 1 > /proc/fs/cifs/cifsFYI
# cat /proc/fs/cifs/cifsFYI
1
# mount /drobo/
# grep -i "cifs" syslog
Jul  6 10:35:14 mx kernel:  CIFS VFS: Send error in SETFSUnixInfo = -5
Jul  6 10:35:14 mx kernel:  CIFS VFS: Negotiating Unix capabilities with 
the server failed.  Consider mounting with the Unix Extensions
Jul  6 10:40:36 mx kernel:  fs/cifs/cifsfs.c: Devname: 
//DroboShare/drobo flags: 64
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: CIFS VFS: in cifs_mount 
as Xid: 18285 with uid: 0
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Username: drobo
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: UNC: \\DroboShare\drobo 
ip: 192.168.71.5
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Socket created
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: sndbuf 16384 rcvbuf 87380 
rcvtimeo 0x7fffffff
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Demultiplex PID: 6160
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Existing smb sess not found
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: secFlags 0x7
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 114
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 56
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x63
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: Dialect: 0
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: negprot rc 0
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Security Mode: 0x3 
Capabilities: 0x80e3fd TimeAdjust: 25200
Jul  6 10:40:36 mx kernel:  fs/cifs/sess.c: sess setup type 2
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 115
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb:  total_len 234
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x66
Jul  6 10:40:36 mx kernel:  fs/cifs/misc.c: Null buffer passed to 
cifs_small_buf_release
Jul  6 10:40:36 mx kernel:  fs/cifs/sess.c: ssetup rc from sendrecv2 is 0
Jul  6 10:40:36 mx kernel:  fs/cifs/sess.c: UID = 100
Jul  6 10:40:36 mx kernel:  fs/cifs/sess.c: bleft 57
Jul  6 10:40:36 mx kernel:  fs/cifs/sess.c: words left: 0
Jul  6 10:40:36 mx kernel:  fs/cifs/sess.c: ssetup freeing small buf 
df91d740
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: CIFS Session Established 
successfully
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: file mode: 0x5f7  dir 
mode: 0x1ff
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 117
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 88
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x3a
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: disk share connection
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Tcon flags: 0x1
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: CIFS Tcon rc = 0
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: In QFSDeviceInfo
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 50
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 68
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x44
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: In QFSAttributeInfo
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 50
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 68
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x50
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: In QFSUnixInfo
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 50
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 68
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x48
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: negotiated posix acl support
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: Negotiate caps 0x2
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: In SETFSUnixInfo
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 50
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 82
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0x27
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: invalid transact2 word count
Jul  6 10:40:36 mx kernel:  fs/cifs/netmisc.c: Mapping smb error code 31 
to POSIX err -5
Jul  6 10:40:36 mx kernel:  CIFS VFS: Send error in SETFSUnixInfo = -5
Jul  6 10:40:36 mx kernel:  CIFS VFS: Negotiating Unix capabilities with 
the server failed.  Consider mounting with the Unix Extensions
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: CIFS VFS: leaving 
cifs_mount (xid = 18285) rc = 0
Jul  6 10:40:36 mx kernel:  fs/cifs/inode.c: CIFS VFS: in 
cifs_read_inode as Xid: 18286 with uid: 0
Jul  6 10:40:36 mx kernel:  fs/cifs/inode.c: Getting info on
Jul  6 10:40:36 mx kernel:  fs/cifs/cifssmb.c: In QPathInfo (Unix) the path
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: For smb_command 50
Jul  6 10:40:36 mx kernel:  fs/cifs/transport.c: Sending smb of length 74
Jul  6 10:40:36 mx kernel:  fs/cifs/connect.c: rfc1002 length 0xa5
Jul  6 10:40:36 mx kernel:  fs/cifs/inode.c: Old time 0
Jul  6 10:40:36 mx kernel:  fs/cifs/inode.c: New time 4197328
Jul  6 10:40:36 mx kernel:  fs/cifs/inode.c: Size 0 and blocks 8
Jul  6 10:40:36 mx kernel:  fs/cifs/inode.c: Directory inode