Hi!
I'm using linphone 3.6.1 as SIP client and Kamailio 4.4.4 as proxy
server and registrar.
And every time I try to change online status (presence) in linphone
client, I see following error messages in kamailio server log:
ERROR: presence_xml [add_events.c:167]: xml_publ_handl(): bad body format
ERROR: presence [publish.c:443]: handle_publish(): in event specific publish handling
ERROR: tm [t_reply.c:533]: _reply_light(): ERROR: _reply_light: can't generate 500 reply when a final 415 was sent out
ERROR: sl [sl.c:269]: send_reply(): failed to reply stateful (tm)
ERROR: presence [utils_func.c:146]: send_error_reply(): sending 500 Server Internal Error reply
ERROR: presence [publish.c:492]: handle_publish(): failed to send error reply
So it looks like kamailio is not able to parse presence change which is
linphone doing. I captured traffic via tcpdump what linphone sends:
21:58:58.704792 IP (tos 0x68, ttl 64, id 64109, offset 0, flags [DF], proto UDP (17), length 32)
LINPHONE_IP_ADDRESS.5060 > KAMAILIO_IP_ADDRESS.5060: SIP
21:58:58.704919 IP (tos 0x68, ttl 64, id 64110, offset 0, flags [DF], proto UDP (17), length 752)
LINPHONE_IP_ADDRESS.5060 > KAMAILIO_IP_ADDRESS.5060: SIP, length: 724
PUBLISH sip:USER@HOST SIP/2.0
Via: SIP/2.0/UDP LINPHONE_IP_ADDRESS:5060;rport;branch=z9hG4bK2049418743
From: User <sip:USER@HOST>;tag=184282924
To: User <sip:USER@HOST>
Call-ID: 1435474953
CSeq: 26 PUBLISH
Content-Type: application/pidf+xml
Max-Forwards: 70
User-Agent: Linphone/3.6.1 (eXosip2/4.1.0)
Expires: 600
Event: presence
Content-Length: 353
<?xml version="1.0" encoding="UTF-8"?>
<presence xmlns="urn:ietf:params:xml:ns:pidf" xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model" xmlns:rpid="urn:ietf:params:xml:ns:pidf:rpid" entity="User <sip:USER@HOST>">
<tuple id="sg89ae">
<status><basic>closed</basic></status>
<contact priority="0.8">User <sip:USER@HOST></contact>
</tuple>
</presence>
21:58:58.710097 IP (tos 0x10, ttl 53, id 10255, offset 0, flags [none], proto UDP (17), length 473)
KAMAILIO_IP_ADDRESS.5060 > LINPHONE_IP_ADDRESS.5060: SIP, length: 445
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP LINPHONE_IP_ADDRESS:5060;rport=5060;branch=z9hG4bK2049418743;received=EXTERNAL_IP_ADDRESS
From: User <sip:USER@HOST>;tag=184282924
To: User <sip:USER@HOST>;tag=515cb47c4c34ffa85b598d6b25676122.744d
Call-ID: 1435474953
CSeq: 26 PUBLISH
Proxy-Authenticate: Digest realm="HOST", nonce="NONCE"
Server: kamailio (4.4.4 (x86_64/linux))
Content-Length: 0
21:58:58.718147 IP (tos 0x68, ttl 64, id 64111, offset 0, flags [DF], proto UDP (17), length 940)
LINPHONE_IP_ADDRESS.5060 > KAMAILIO_IP_ADDRESS.5060: SIP, length: 912
PUBLISH sip:USER@HOST SIP/2.0
Via: SIP/2.0/UDP LINPHONE_IP_ADDRESS:5060;rport;branch=z9hG4bK1165141043
From: User <sip:USER@HOST>;tag=184282924
To: User <sip:USER@HOST>
Call-ID: 1435474953
CSeq: 27 PUBLISH
Proxy-Authorization: Digest username="USER", realm="HOST", nonce="NONCE", uri="sip:USER@HOST", response="RESP", algorithm=MD5
Content-Type: application/pidf+xml
Max-Forwards: 70
User-Agent: Linphone/3.6.1 (eXosip2/4.1.0)
Expires: 600
Event: presence
Content-Length: 353
<?xml version="1.0" encoding="UTF-8"?>
<presence xmlns="urn:ietf:params:xml:ns:pidf" xmlns:dm="urn:ietf:params:xml:ns:pidf:data-model" xmlns:rpid="urn:ietf:params:xml:ns:pidf:rpid" entity="User <sip:USER@HOST>">
<tuple id="sg89ae">
<status><basic>closed</basic></status>
<contact priority="0.8">User <sip:USER@HOST></contact>
</tuple>
</presence>
21:58:58.781668 IP (tos 0x10, ttl 53, id 10259, offset 0, flags [none], proto UDP (17), length 380)
KAMAILIO_IP_ADDRESS.5060 > LINPHONE_IP_ADDRESS.5060: SIP, length: 352
SIP/2.0 415 Unsupported media type
Via: SIP/2.0/UDP LINPHONE_IP_ADDRESS:5060;rport=5060;branch=z9hG4bK1165141043;received=EXTERNAL_IP_ADDRESS
From: User <sip:USER@HOST>;tag=184282924
To: User <sip:USER@HOST>;tag=97d8e785fdf42bf9622a64c13c504961-3901
Call-ID: 1435474953
CSeq: 27 PUBLISH
Server: kamailio (4.4.4 (x86_64/linux))
Content-Length: 0
I replaced ip addresses in packets by KAMAILIO_IP_ADDRESS,
LINPHONE_IP_ADDRESS and EXTERNAL_IP_ADDRESS strings and also SIP account
by USER@HOST. Maybe it helps you.
Any idea why kamailio refuse presence update and reports those error
into error log?
Or is there any special setting which is needed for linphone or other
SIP clients for online status / presence support?
--
Pali Rohár
pali.rohar(a)gmail.com
