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

[Klaus Darilion]

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:[EMAIL PROTECTED]:15061 SIP/2.0.
Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-34d67b8f.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 101 INVITE.
Max-Forwards: 70.
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>;tag=688bd636d693eb2ab143ccbaf0db2c7a.8474.
Call-ID: [EMAIL PROTECTED]
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:[EMAIL PROTECTED]:15061 SIP/2.0.
Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-34d67b8f.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>;tag=688bd636d693eb2ab143ccbaf0db2c7a.8474.
Call-ID: [EMAIL PROTECTED]
CSeq: 101 ACK.
Max-Forwards: 70.
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED]:15061 SIP/2.0.
Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE.
Max-Forwards: 70.
Proxy-Authorization: Digest 
username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:[EMAIL
 
PROTECTED]:15061",algorithm=MD5,response="6867ef34181ba7cedbcbf8dd869f53ab",qop=auth,nc=00000001,cnonce="750e43e5".
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED]:15061 SIP/2.0.
Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE.
Max-Forwards: 70.
Proxy-Authorization: Digest 
username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:[EMAIL
 
PROTECTED]:15061",algorithm=MD5,response="6867ef34181ba7cedbcbf8dd869f53ab",qop=auth,nc=00000001,cnonce="750e43e5".
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED]:15061 SIP/2.0.
Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 CANCEL.
Max-Forwards: 70.
Proxy-Authorization: Digest 
username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:[EMAIL
 
PROTECTED]: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:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>;tag=688bd636d693eb2ab143ccbaf0db2c7a.32f9.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 CANCEL.
Content-Length: 0.
.
 
#
U 2005/10/04 01:44:44.648305 SIP_UAC:5070 -> OSER_PROXY:15061
INVITE sip:[EMAIL PROTECTED]:15061 SIP/2.0.
Via: SIP/2.0/UDP 192.168.99.66:5070;branch=z9hG4bK-249e2787.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE.
Max-Forwards: 70.
Proxy-Authorization: Digest 
username="200110005334",realm="hq.galnet.ca",nonce="4341dfb7e0cfaa398a6f425c02262325f943b20e",uri="sip:[EMAIL
 
PROTECTED]:15061",algorithm=MD5,response="11a15f9ef4fdb1c9ab05566cad92d67e",qop=auth,nc=00000002,cnonce="750e43e5".
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE.
Content-Length: 0.
.
 
#
U 2005/10/04 01:44:44.689012 OSER_PROXY:15061 -> NEXTHOP_PROXY:5060
INVITE sip:[EMAIL PROTECTED] 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:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE.
Max-Forwards: 15.
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED] 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:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
To: <sip:[EMAIL PROTECTED]:15061>.
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE.
Max-Forwards: 15.
Contact: tavis <sip:[EMAIL PROTECTED]: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:[EMAIL PROTECTED]:15061>;tag=40032033.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
Call-ID: [EMAIL PROTECTED]
X-SHOUT-Channel: INBOUND 1:15:21:1.
CSeq: 102 INVITE.
Contact: sip:[EMAIL PROTECTED]
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:[EMAIL PROTECTED]:15061>;tag=40032033.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
Call-ID: [EMAIL PROTECTED]
X-SHOUT-Channel: INBOUND 1:15:21:1.
CSeq: 102 INVITE.
Contact: sip:[EMAIL PROTECTED]
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:[EMAIL PROTECTED]:15061>;tag=40032033.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
Call-ID: [EMAIL PROTECTED]
X-SHOUT-Channel: INBOUND 1:15:21:1.
CSeq: 102 INVITE.
Contact: sip:[EMAIL PROTECTED]
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:[EMAIL PROTECTED]:15061>;tag=40032033.
From: tavis <sip:[EMAIL PROTECTED]:15061>;tag=6e3e1f53c3f352efo0.
Call-ID: [EMAIL PROTECTED]
X-SHOUT-Channel: INBOUND 1:15:21:1.
CSeq: 102 INVITE.
Contact: sip:[EMAIL PROTECTED]
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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