complex dfs roots

[William Law]

Hi,

We have a very complicated dfs root.  Now I'm not positive that this is
how we should have done things, but it works very well with Windows
clients, so it hasn't been thought about here.  This does not work with
smbclient or smbmount.  I'm using freshly built smbclient from Samba
3.0.21a.

Anyway, here is the issue.  We have a very large namespace via one root
that is currently active directory based.

We have many dfs links that work like this.  Let's say our domain is
called DOMAIN, and the root is called dfs.

\\DOMAIN\dfs is then mapped to an empty folder.  From there, we have
many dfs links, such as:
Users\testuser which is mapped in DFS to
\\fileserver1\share\Users\testuser, which works easily in windows to
seamless take the user who access \\domain\dfs\users\testuser to the
folder \\fileserver1\share\users\testuser.

This does NOT work under smbclient.  It looks like it could be fixed by
modifying the code to handle the slashes correctly.  Here is the log
from smbclient with the D 3 debugging option:

sh-3.00$ smbclient //tc.cornell.edu/tc -k -d 3
lp_load: refreshing parameters
Initialising global parameters
params.c:pm_process() - Processing configuration file
"/etc/samba/smb.conf"
Processing section "[global]"
Can't find include file /etc/samba/smb.conf.
added interface ip=128.84.31.152 bcast=128.84.31.255 nmask=255.255.255.0
Client started (version 3.0.21a).
resolve_hosts: Attempting host lookup for name tc.cornell.edu<0x20>
Connecting to 128.84.5.22 at port 445
Doing spnego session setup (blob length=111)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcdc04$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
OS=[Windows Server 2003 3790 Service Pack 1] Server=[Windows Server 2003
5.2]
resolve_hosts: Attempting host lookup for name tc.cornell.edu<0x20>
Connecting to 128.84.43.250 at port 445
Doing spnego session setup (blob length=111)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcdc03$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
dos_clean_name []
resolve_hosts: Attempting host lookup for name ctcfsrv10<0x20>
Connecting to 128.84.29.24 at port 445
Doing spnego session setup (blob length=113)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcfsrv10$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
resolve_hosts: Attempting host lookup for name ctcfsrv10<0x20>
Connecting to 128.84.29.24 at port 445
Doing spnego session setup (blob length=113)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcfsrv10$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
dos_clean_name []
resolve_hosts: Attempting host lookup for name CTCFSRV11<0x20>
Connecting to 128.84.29.25 at port 445
Doing spnego session setup (blob length=113)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcfsrv11$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
resolve_hosts: Attempting host lookup for name CTCFSRV11<0x20>
Connecting to 128.84.29.25 at port 445
Doing spnego session setup (blob length=113)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcfsrv11$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
dos_clean_name []
dos_clean_name []
smb: \> cd cbsu
dos_clean_name [\cbsu\]
dos_clean_name [\cbsu\\]
resolve_hosts: Attempting host lookup for name
ctcfsrv6.tc.cornell.edu<0x20>
Connecting to 128.84.40.20 at port 445
Doing spnego session setup (blob length=112)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcfsrv6$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
resolve_hosts: Attempting host lookup for name
ctcfsrv6.tc.cornell.edu<0x20>
Connecting to 128.84.40.20 at port 445
Doing spnego session setup (blob length=112)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ctcfsrv6$@TC.CORNELL.EDU
Doing kerberos session setup
Ticket in ccache[FILE:/tmp/krb5cc_16777216_onPqOV] expiration Wed, 01
Feb 2006 19:25:27 EST
dos_clean_name []
dos_clean_name []
dos_clean_name [\CTCFSRV11\tc\cbsu]
dos_clean_name [\cbsu]
smb: \cbsu\> cd /
dos_clean_name [\]
dos_clean_name [\\]
smb: \> cd users\law
dos_clean_name [\users\law\]
dos_clean_name [\users\law\\]
resolve_hosts: Attempting host lookup for name
ctcfsrv9.tc.cornell.edu\tc_q\users<0x20>
Connection to ctcfsrv9.tc.cornell.edu\tc_q\users failed
Unable to follow dfs referral [//ctcfsrv9.tc.cornell.edu\tc_q\users/law]
cd \users\law\: NT_STATUS_PATH_NOT_COVERED


Thanks!

William Law
Cornell University