[OpenSER-Users] X-lite (for Linux) and BYE Scenario

[Daniel Grotti]

Hi All,
I've noticed that using X-lite (for Linux) there are some problems with 
BYE method.
When X-lite generates BYE, it puts in the Route Header field the address 
known through the record-route added by proxy.
As "SER - Gettin Started" shown, an address like : IP_proxy:5060;nat=yes:

" /....
  ....
  if(method=="INVITE"  && client_nat_test("7"))
                  {
                    record_route_preset ("proxy_ip_address :5060;nat=yes");
  ....           }
/"

1. When we have a BYE message sended by X-lite (user A), it is like this:

"/Request-Line: BYE sip: B at proxy_ip_address : 5060 SIP/2.0
  Via: SIP/2.0/UDP A_address:5061; rport;branch=xyz
   From: <sip: A at proxy_ip_address:5061>;tag=123
   To: <sip: B at proxy_ip_address:5060>;tag=456
   Contact:<sip:A at A_address:5061>
 *  Route: <sip: proxy_ip_address:5060; nat=yes; ftag=9098789; lr=on>*
   ....
   .....
  ....  "/

2. Now the message BYE is parsed by the Proxy, and it uses the 
loose_route():

/if(loose_route())/
{
    forward the message
};

but Proxy doesn't recognizes its address and then rewrites the R-URI 
with the address in Route header field and sends the BYE message.....to 
itself!  then Proxy parses the new BYE (sended by itself) with the URI 
:/* <sip: proxy_ip_address:5060; nat=yes; ftag=9098789; lr=on>,*/ the 
the answer to user A is : 404 Destination not found!

Why doesn't OpenSER, in the loose_route() function, recognize its 
address in Route header field? This is what should it do. And then, 
delete the route header field and then forward the message using R-URI.

I think there is something wrong....

Regards,
Daniel

-- 

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Daniel Grotti
DEIS - University of Bologna
Via Venezia, 52 - 47023 Cesena (FC) - ITALY

Contacts
e-mail : daniel.grotti at unibo.it
Skype name : Daniel Grotti
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