NetServerEnum2 from libsmbclient on port 445.

[Stephan Kulow]

On Tuesday 08 April 2003 13:39, Brenden Bain wrote:
> Hi,
> 
> > This is an interesting area of study.  The NetServerEnum2() function
> > call is supposed to return a list of NetBIOS names.  SMB on port 445
> > is NetBIOS-less SMB.  In theory, it makes some sort of sense that a
> > NetServerEnum2() call via port 445 would not return any NetBIOS server
> > names.
> 
> That seems to make sense.
> 
> > My gut, though, is that the LMB was recently elected and had not had
> > time to rebuild the Browse List.  Can you verify that for me (one way
> > or the other)?
> 
> I'm quite sure the LMB is up-to-date. If I first try to get the workgroup list 
> using libsmbclient I get am empty NetServerEnum2 reply. If I then call 
> smbclient -L on the LMB, then the NetServerEnum2 reply contains all the 
> computers in the workgroup. Also if I put a block on all TCP connections 
> leaving from port 445, to force libsmbclient to try port 139, then I get a 
> NetServerEnum2 reply with all the computers in the workgroup. As smbclient 
> always uses 139 I would assume that the connection to 445 causes the error. 
> This problem can be replicated on win2k and win2000. I am not sure about 
> win9x, but as they do not reply to 445 they should not have the same problem.
> 
> At the same time there is at least one winXP system where the NetServerEnum2 
> reply is vaild when the request is sent to port 445. Maybe this is a 
> configuration option, service release, or my mistake ?
> 
Indeed. When I force port 139 then I can browse just fine. Will try to fine tune that ;)

Greetings, Stephan

--- libsmb//libsmbclient.c      6 Apr 2003 17:22:41 -0000       1.73
+++ libsmb//libsmbclient.c      8 Apr 2003 12:02:35 -0000
@@ -446,6 +446,7 @@ SMBCSRV *smbc_server(SMBCCTX *context,
        }

        c.timeout = context->timeout;
+       c.port = 139;

        if (!cli_connect(&c, server_n, &ip)) {
                cli_shutdown(&c);