[asterisk-bugs] [JIRA] (ASTERISK-27682) PJSIP outbound-publish, ETag and Event: dialog

[Cyrille Demaret (JIRA)]

Cyrille Demaret created ASTERISK-27682:
------------------------------------------

             Summary: PJSIP outbound-publish, ETag and Event: dialog
                 Key: ASTERISK-27682
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27682
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: pjproject/pjsip
    Affects Versions: 14.7.5
            Reporter: Cyrille Demaret


Asterisk is sending a PUBLISH with a "early" state with a SIP-If-Match for an already terminated dialog. According to the RFC 4235, this shouldn't happens.

Asterisk send :

PUBLISH sip:201 at 192.168.100.37 SIP/2.0
Via: SIP/2.0/UDP 192.168.100.37:5080;rport;branch=z9hG4bKPj4f9c19eb-26d8-4bb1-8f00-e69723a61082
From: sip:201 at mydomain.com;tag=a560e088-9e8a-49f2-a9b1-4a0ec31340bf
To: sip:201 at mydomain.com
Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183
CSeq: 10697 PUBLISH
Event: dialog
Expires: 180
Max-Forwards: 70
User-Agent: Asterisk PBX 14.6.0
Content-Type: application/dialog-info+xml
Content-Length: 247

<?xml version="1.0" encoding="UTF-8"?> early

The presence server replies :

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.100.37:5080;rport=5080;branch=z9hG4bKPj4f9c19eb-26d8-4bb1-8f00-e69723a61082;received=192.168.100.37
From: sip:201 at mydomain.com;tag=a560e088-9e8a-49f2-a9b1-4a0ec31340bf
To: sip:201 at mydomain.com;tag=b596189c6de9c38f624fd84638f43be6-ff39
Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183
CSeq: 10697 PUBLISH
Expires: 180
SIP-ETag: a.1518775074.19863.16.0
Server: kamailio (5.0.5 (x86_64/linux))
Content-Length: 0

When the call is done, Asterisk send another PUBLISH telling that the call is terminated :

PUBLISH sip:201 at 192.168.100.37 SIP/2.0
Via: SIP/2.0/UDP 192.168.100.37:5080;rport;branch=z9hG4bKPja93efb01-a518-445e-9e9b-f6f97ab8c752
From: sip:201 at mydomain.com;tag=165fb3b2-ec0e-4786-889f-eb194ad456ce
To: sip:201 at mydomain.com
Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183
CSeq: 10698 PUBLISH
Event: dialog
SIP-If-Match: a.1518775074.19863.16.0
Expires: 180
Max-Forwards: 70
User-Agent: Asterisk PBX 14.6.0
Content-Type: application/dialog-info+xml
Content-Length: 230

<?xml version="1.0" encoding="UTF-8"?> terminated

The presence server replies :

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.100.37:5080;rport=5080;branch=z9hG4bKPja93efb01-a518-445e-9e9b-f6f97ab8c752;received=192.168.100.37
From: sip:201 at mydomain.com;tag=165fb3b2-ec0e-4786-889f-eb194ad456ce
To: sip:201 at mydomain.com;tag=b596189c6de9c38f624fd84638f43be6-48b4
Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183
CSeq: 10698 PUBLISH
Expires: 180
SIP-ETag: a.1518775074.19873.18.1
Server: kamailio (5.0.5 (x86_64/linux))
Content-Length: 0

If a new call is made before the expiration, Asterisk reuse the same ETag:

PUBLISH sip:201 at 192.168.100.37 SIP/2.0
Via: SIP/2.0/UDP 192.168.100.37:5080;rport;branch=z9hG4bKPj9d13bb82-31d9-48db-9672-bd4b6b4f22f0
From: sip:201 at mydomain.com;tag=33e6b028-0444-4b3a-8bc2-4a987a291528
To: sip:201 at mydomain.com
Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183
CSeq: 10699 PUBLISH
Event: dialog
SIP-If-Match: a.1518775074.19873.18.1
Expires: 180
Max-Forwards: 70
User-Agent: Asterisk PBX 14.6.0
Content-Type: application/dialog-info+xml
Content-Length: 247

<?xml version="1.0" encoding="UTF-8"?> early




--
This message was sent by Atlassian JIRA
(v6.2#6252)