[OpenSER-Users] Problem with handling 3xx responses and contact with maddr

[Andreas Granig]

Bradley,

I've submitted 
http://sourceforge.net/tracker/index.php?func=detail&aid=1660338&group_id=139143&atid=743023 
some time ago, and the UA in question is also a Nortel CS2K, so it seems 
like this UA is using maddr in multiple places. Maybe the overall 
maddr-handling in OpenSER has to be reviewed (I'm not sure if your case 
complies with RFC 3261 and thus is valid though).

Cheers,
Andreas

Watkins, Bradley wrote:
> I'm using OpenSER to connect to a Nortel CS1000M, and I'm having some
> problems.
> 
> The way the Nortel works is that it has what they call a Network Routing
> Service (redirect server, really), that issues either a 302 (if a single
> SIP gateway exists on the CS1000) or a 300 (if multiple).
> 
> Here's a sample 300 from my system (IPs and domains changed to protect
> the guilty):
> 
> U 10.1.1.3:5060 -> 10.0.1.1:5060
> SIP/2.0 300 Multiple Choices.
> Via: SIP/2.0/UDP
> 10.0.1.1;branch=z9hG4bKa66e.99fc1a25.1;received=10.0.1.1.
> Via: SIP/2.0/UDP 10.1.3.114;branch=z9hG4bK7d42804867A25509.
> From: "0004f2145263"
> <sip:0004f2145263 at dtw-openser01.sub.domain.com>;tag=5F7CDD45-DDCE1F92.
> To: <sip:12345 at dtw-openser01.sub.domain.com;user=phone>;tag=34887.
> Call-ID: 58dd5646-e86d140f-c2ead634 at 10.1.3.114.
> CSeq: 1 INVITE.
> Contact:
> <sip:12345;phone-context=udp at domain.com:5060;maddr=10.1.1.1;transport=ud
> p;x-nt-redirect=redirect-server;x-nt-redirect=redirect-server>.
> Contact:
> <sip:12345;phone-context=udp at domain.com:5060;maddr=10.1.1.2;transport=tc
> p;x-nt-redirect=redirect-server;x-nt-redirect=redirect-server>.
> Content-Length: 0.
> 
> 
> The problem I have is that the Contacts have an maddr, and I need relay
> to it.  However, I can't seem to be able to use transformations to get
> the maddr for relaying.  Here are some log messages with comments
> inline:
> 
> Jul 16 19:50:49 dtw-openser01 /usr/local/sbin/openser[4306]: Branches
> are:
> <sip:12345;phone-context=udp at domain.com:5060;maddr=10.1.1.1;transport=ud
> p;x-nt-redirect=redirect-server>;q=0.01
> 
> This is just an xlog of $bR, but I'm not sure where the q= value is
> coming from (get_redirects?).
> 
> 
> Jul 16 19:50:49 dtw-openser01 /usr/local/sbin/openser[4306]: ERROR:
> parse_uri: bad uri,  state 0 parsed: <<sip> (4) /
> <<sip:12345;phone-context=udp at domain.com:5060;maddr=10.1.1.1;transport=u
> dp;x-nt-redirect=redirect-server>;q=0.01> (120)
> Jul 16 19:50:49 dtw-openser01 /usr/local/sbin/openser[4306]:
> tr_eval_uri: invalid uri
> [<sip:12345;phone-context=udp at domain.com:5060;maddr=10.1.1.1;transport=u
> dp;x-nt-redirect=redirect-server>;q=0.01]
> 
> These are what I get as a result of trying to xlog $(bR{uri.maddr})
> 
> Anyway, I would be greatly appreciative of any help someone might offer
> on the matter.
> 
> Regards,
> - Brad
> 
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