my proxy is listening at udp/tcp ip:port 192.98.102.30:5060 and my script has this for in-dialog requests:

route [IN_DIALOG_REQUEST] { # handle in-dialog request

if (!loose_route()) { xlog("L_INFO", "Loose route failed on $hdr(route)\n"); ... exit; };

xlog("L_INFO", "destination uri after loose_route: <$du>\n");

if i send to my proxy with sipp this in-dialog bye:

<?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE scenario SYSTEM "sipp.dtd">

<scenario name="In-dialog BYE">

<send> <![CDATA[

BYE sip:test@192.98.102.30:53846;transport=tcp SIP/2.0 Via: SIP/2.0/UDP 192.98.101.40;branch=z9hG4bK63f.e9d25102.0 Via: SIP/2.0/UDP 192.98.101.157:5080;branch=z9hG4bK6955a179;rport=5080 Route: sip:192.98.102.30;r2=on;lr;n1,sip:192.98.102.30;transport=tcp;r2=on;lr;n1 Max-Forwards: 16 From: sip:jh@test.tutpro.com;tag=as0cb9dd4f To: "Test" sip:test@test.tutpro.com;tag=3feea37d Call-ID: d745a79b66919309ba2ef68fde0ca13e@0:0:0:0:0:0:0:0 CSeq: 102 BYE Content-Length: 0

]]> </send>

</scenario>

i correctly get to syslog:

Apr 1 20:47:28 siika /usr/sbin/sip-proxy[9583]: INFO: destination uri after loose_route: <<null>>

that is, the proxy removed both route uris that pointed to itself from the route set leaving empty $du.

however, if i send to my proxy with sipp this in-dialog bye (where the only difference to the previous one is request uri that now contains alias param):

<?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE scenario SYSTEM "sipp.dtd">

<scenario name="In-dialog BYE">

<send> <![CDATA[

BYE sip:test@192.98.102.30:5060;alias=192.98.102.30~53846~2;transport=tcp SIP/2.0 Via: SIP/2.0/UDP 192.98.101.40;branch=z9hG4bK63f.e9d25102.0 Via: SIP/2.0/UDP 192.98.101.157:5080;branch=z9hG4bK6955a179;rport=5080 Route: sip:192.98.102.30;r2=on;lr;n1,sip:192.98.102.30;transport=tcp;r2=on;lr;n1 Max-Forwards: 16 From: sip:jh@test.tutpro.com;tag=as0cb9dd4f To: "Test" sip:test@test.tutpro.com;tag=3feea37d Call-ID: d745a79b66919309ba2ef68fde0ca13e@0:0:0:0:0:0:0:0 CSeq: 102 BYE Content-Length: 0

]]> </send>

</scenario>

i get to syslog:

Apr 1 20:51:20 siika /usr/sbin/sip-proxy[9540]: INFO: destination uri after loose_route: sip:192.98.102.30;transport=tcp;r2=on;lr;n1

can someone explain, how it is possible that when request uri changes, loose_route() does not anymore consume both route uris that point to the proxy itself? could this be a bug in loose_route()?

-- juha