[Users] Call not torn down when CANCEL sent before INVITE message is finished being processed

Klaus Darilion klaus.mailinglists at pernau.at
Tue Oct 4 08:46:51 CEST 2005 

Tavis P wrote:
> With the latest CVS build of OSER, when an INVITE is sent followed by a
> CANCEL, before OSER has finished processing the initial INVITE, the
> outbound call is not torn down, and SER routes the CANCEL message to

AFAIK this may happen with all versions of ser/openser.

btw: Your SIPURA is broken:
1. It sends a CANCEL although it has not received a response yet. 
According tot the standard the UAC must withheld the CANCEL until a 
provisional response is received.

2. It sends an INVITE right after the CANCEL. Weird.

regards
klaus

> itself. 
> 
> Below is an ngrep trace of the exchange.
> 
> 
> I have a development cluster of mediaproxy servers setup and one of them
> was taken offline but left in the loop which increased the time it took
> for a message to be processed which is how i came across this situation
> (it took some seconds before the INVITE was able to be transmitted to
> the nexthop_proxy)
> 
> 
> 
> --
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> #
> U 2005/10/04 01:44:43.134010 SIP_UAC:5070 -> OSER_PROXY:15061
> INVITE sip:6046946333 at OSER_PROXY:15061 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-34d67b8f.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 101 INVITE.
> Max-Forwards: 70.
> Contact: tavis <sip:200110005334 at 192.168.99.66:5070>.
> Expires: 240.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 287.
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
> Supported: x-sipura.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 25915303 25915303 IN IP4 192.168.99.66.
> s=-.
> c=IN IP4 192.168.99.66.
> t=0 0.
> m=audio 16410 RTP/AVP 18 0 4 8 101.
> a=rtpmap:18 G729a/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:4 G723/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:20.
> a=sendrecv.
>  
> #
> U 2005/10/04 01:44:43.135736 OSER_PROXY:15061 -> SIP_UAC:5070
> SIP/2.0 407 Proxy Authentication Required.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-34d67b8f;rport=5070;received=SIP_UAC.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=688bd636d693eb2ab143ccbaf0db2c7a.8474.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 101 INVITE.
> Proxy-Authenticate: Digest realm="hq.galnet.ca", nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e", qop="auth".
> Content-Length: 0.
> .
>  
> #
> U 2005/10/04 01:44:43.147960 SIP_UAC:5070 -> OSER_PROXY:15061
> ACK sip:6046946333 at OSER_PROXY:15061 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-34d67b8f.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=688bd636d693eb2ab143ccbaf0db2c7a.8474.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 101 ACK.
> Max-Forwards: 70.
> Contact: tavis <sip:200110005334 at 192.168.99.66:5070>.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 0.
> .
>  
> #
> U 2005/10/04 01:44:43.154728 SIP_UAC:5070 -> OSER_PROXY:15061
> INVITE sip:6046946333 at OSER_PROXY:15061 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 INVITE.
> Max-Forwards: 70.
> Proxy-Authorization: Digest username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:6046946333 at OSER_PROXY:15061",algorithm=MD5,response="6867ef34181ba7cedbcbf8dd869f53ab",qop=auth,nc=00000001,cnonce="750e43e5".
> Contact: tavis <sip:200110005334 at 192.168.99.66:5070>.
> Expires: 240.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 287.
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
> Supported: x-sipura.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 25915303 25915303 IN IP4 192.168.99.66.
> s=-.
> c=IN IP4 192.168.99.66.
> t=0 0.
> m=audio 16410 RTP/AVP 18 0 4 8 101.
> a=rtpmap:18 G729a/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:4 G723/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:20.
> a=sendrecv.
>  
> #
> U 2005/10/04 01:44:43.648366 SIP_UAC:5070 -> OSER_PROXY:15061
> INVITE sip:6046946333 at OSER_PROXY:15061 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 INVITE.
> Max-Forwards: 70.
> Proxy-Authorization: Digest username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:6046946333 at OSER_PROXY:15061",algorithm=MD5,response="6867ef34181ba7cedbcbf8dd869f53ab",qop=auth,nc=00000001,cnonce="750e43e5".
> Contact: tavis <sip:200110005334 at 192.168.99.66:5070>.
> Expires: 240.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 287.
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
> Supported: x-sipura.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 25915303 25915303 IN IP4 192.168.99.66.
> s=-.
> c=IN IP4 192.168.99.66.
> t=0 0.
> m=audio 16410 RTP/AVP 18 0 4 8 101.
> a=rtpmap:18 G729a/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:4 G723/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:20.
> a=sendrecv.
>  
> #
> U 2005/10/04 01:44:44.155113 SIP_UAC:5070 -> OSER_PROXY:15061
> CANCEL sip:6046946333 at OSER_PROXY:15061 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 CANCEL.
> Max-Forwards: 70.
> Proxy-Authorization: Digest username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:6046946333 at OSER_PROXY:15061",algorithm=MD5,response="512097281b4fba990adf2cc6c273f033",qop=auth,nc=00000002,cnonce="750e43e5".
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 0.
> .
>  
> #
> U 2005/10/04 01:44:44.285994 OSER_PROXY:15061 -> SIP_UAC:5070
> SIP/2.0 483 Too many hops.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=688bd636d693eb2ab143ccbaf0db2c7a.32f9.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 CANCEL.
> Content-Length: 0.
> .
>  
> #
> U 2005/10/04 01:44:44.648305 SIP_UAC:5070 -> OSER_PROXY:15061
> INVITE sip:6046946333 at OSER_PROXY:15061 SIP/2.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 INVITE.
> Max-Forwards: 70.
> Proxy-Authorization: Digest username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:6046946333 at OSER_PROXY:15061",algorithm=MD5,response="11a15f9ef4fdb1c9ab05566cad92d67e",qop=auth,nc=00000002,cnonce="750e43e5".
> Contact: tavis <sip:200110005334 at 192.168.99.66:5070>.
> Expires: 240.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 287.
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
> Supported: x-sipura.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 25915303 25915303 IN IP4 192.168.99.66.
> s=-.
> c=IN IP4 192.168.99.66.
> t=0 0.
> m=audio 16410 RTP/AVP 18 0 4 8 101.
> a=rtpmap:18 G729a/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:4 G723/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:20.
> a=sendrecv.
>  
> #
> U 2005/10/04 01:44:44.688471 OSER_PROXY:15061 -> SIP_UAC:5070
> SIP/2.0 100 trying -- your call is important to us.
> Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787;rport=5070;received=SIP_UAC.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 INVITE.
> Content-Length: 0.
> .
>  
> #
> U 2005/10/04 01:44:44.689012 OSER_PROXY:15061 -> NEXTHOP_PROXY:5060
> INVITE sip:16046946333 at NEXTHOP_PROXY SIP/2.0.
> Record-Route: <sip:OSER_PROXY:15061;ftag=6e3e1f53c3f352efo0;lr=on>.
> Via: SIP/2.0/UDP OSER_PROXY:15061;branch=z9hG4bK11ea.6c311116.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 INVITE.
> Max-Forwards: 15.
> Contact: tavis <sip:200110005334 at SIP_UAC:5070>.
> Expires: 240.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 288.
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
> Supported: x-sipura.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 25915303 25915303 IN IP4 192.168.99.66.
> s=-.
> c=IN IP4 OSER_PROXY.
> t=0 0.
> m=audio 35328 RTP/AVP 18 0 4 8 101.
> a=rtpmap:18 G729a/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:4 G723/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:20.
> a=sendrecv.
>  
> #
> U 2005/10/04 01:44:45.396833 OSER_PROXY:15061 -> NEXTHOP_PROXY:5060
> INVITE sip:16046946333 at NEXTHOP_PROXY SIP/2.0.
> Record-Route: <sip:OSER_PROXY:15061;ftag=6e3e1f53c3f352efo0;lr=on>.
> Via: SIP/2.0/UDP OSER_PROXY:15061;branch=z9hG4bK11ea.6c311116.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> To: <sip:6046946333 at OSER_PROXY:15061>.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> CSeq: 102 INVITE.
> Max-Forwards: 15.
> Contact: tavis <sip:200110005334 at SIP_UAC:5070>.
> Expires: 240.
> User-Agent: Sipura/SPA3000-3.1.5(GWb).
> Content-Length: 288.
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
> Supported: x-sipura.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 25915303 25915303 IN IP4 192.168.99.66.
> s=-.
> c=IN IP4 OSER_PROXY.
> t=0 0.
> m=audio 35328 RTP/AVP 18 0 4 8 101.
> a=rtpmap:18 G729a/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:4 G723/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:20.
> a=sendrecv.
>  
> #
> U 2005/10/04 01:44:46.090526 NEXTHOP_PROXY:5060 -> OSER_PROXY:15061
> SIP/2.0 183 Inband Information.
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, REGISTER.
> Via: SIP/2.0/UDP OSER_PROXY:15061;branch=z9hG4bK11ea.6c311116.0.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> Record-Route: <sip:OSER_PROXY:15061;ftag=6e3e1f53c3f352efo0;lr=on>.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=40032033.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> X-SHOUT-Channel: INBOUND 1:15:21:1.
> CSeq: 102 INVITE.
> Contact: sip:anonymous at NEXTHOP_PROXY.
> User-Agent: SHOUT 3.3.1p3v71.
> Content-Type: application/sdp.
> Content-Length: 174.
> .
> v=0.
> o=- 0 0 IN IP4 NEXTHOP_PROXY.
> s=SIP call via SHOUT.
> c=IN IP4 NEXTHOP_PROXY.
> t=0 0.
> m=audio 19004 RTP/AVP 18 101.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
>  
> #
> U 2005/10/04 01:44:46.104387 OSER_PROXY:15061 -> SIP_UAC:5070
> SIP/2.0 183 Inband Information.
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, REGISTER.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> Record-Route: <sip:OSER_PROXY:15061;ftag=6e3e1f53c3f352efo0;lr=on>.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=40032033.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> X-SHOUT-Channel: INBOUND 1:15:21:1.
> CSeq: 102 INVITE.
> Contact: sip:anonymous at NEXTHOP_PROXY.
> User-Agent: SHOUT 3.3.1p3v71.
> Content-Type: application/sdp.
> Content-Length: 176.
> .
> v=0.
> o=- 0 0 IN IP4 NEXTHOP_PROXY.
> s=SIP call via SHOUT.
> c=IN IP4 OSER_PROXY.
> t=0 0.
> m=audio 35328 RTP/AVP 18 101.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
>  
> #
> U 2005/10/04 01:44:46.190376 OSER_PROXY:15061 -> SIP_UAC:5070
> SIP/2.0 183 Inband Information.
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, REGISTER.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> Record-Route: <sip:OSER_PROXY:15061;ftag=6e3e1f53c3f352efo0;lr=on>.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=40032033.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> X-SHOUT-Channel: INBOUND 1:15:21:1.
> CSeq: 102 INVITE.
> Contact: sip:anonymous at NEXTHOP_PROXY.
> User-Agent: SHOUT 3.3.1p3v71.
> Content-Type: application/sdp.
> Content-Length: 176.
> .
> v=0.
> o=- 0 0 IN IP4 NEXTHOP_PROXY.
> s=SIP call via SHOUT.
> c=IN IP4 OSER_PROXY.
> t=0 0.
> m=audio 35328 RTP/AVP 18 101.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
>  
> ##
> U 2005/10/04 01:44:46.702880 OSER_PROXY:15061 -> SIP_UAC:5070
> SIP/2.0 183 Inband Information.
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, REGISTER.
> Via: SIP/2.0/UDP 192.168.99.66:5070;rport=5070;received=SIP_UAC;branch=z9hG4bK-249e2787.
> Record-Route: <sip:OSER_PROXY:15061;ftag=6e3e1f53c3f352efo0;lr=on>.
> To: <sip:6046946333 at OSER_PROXY:15061>;tag=40032033.
> From: tavis <sip:200110005334 at OSER_PROXY:15061>;tag=6e3e1f53c3f352efo0.
> Call-ID: ec5b9223-f98ffe5f at 192.168.99.66.
> X-SHOUT-Channel: INBOUND 1:15:21:1.
> CSeq: 102 INVITE.
> Contact: sip:anonymous at NEXTHOP_PROXY.
> User-Agent: SHOUT 3.3.1p3v71.
> Content-Type: application/sdp.
> Content-Length: 176.
> .
> v=0.
> o=- 0 0 IN IP4 NEXTHOP_PROXY.
> s=SIP call via SHOUT.
> c=IN IP4 OSER_PROXY.
> t=0 0.
> m=audio 35328 RTP/AVP 18 101.
> a=rtpmap:18 G729/8000.
> a=rtpmap:101 telephone-event/8000.
> 
> 
> 
> ------------------------------------------------------------------------
> 
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