[asterisk-bugs] [JIRA] (ASTERISK-25123) Bracketed IPv6 Contact header parameter unparsable with Asterisk/PJSIP

Thu May 28 19:39:32 CDT 2015

     [ https://issues.asterisk.org/jira/browse/ASTERISK-25123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton updated ASTERISK-25123:
------------------------------------

    Status: Open  (was: Triage)

> Bracketed IPv6 Contact header parameter unparsable with Asterisk/PJSIP
> ----------------------------------------------------------------------
>
>                 Key: ASTERISK-25123
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25123
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip
>    Affects Versions: 13.3.2
>         Environment: Fedora 21 x86_64 branches/13 @ eaabc4d
>            Reporter: Anthony Messina
>
> In the underlying PJSIP implementation, there is an issue parsing header parameter values if the parameter value contains a bracketed IPv6 address.
> I am reporting this issue as it affects Asterisk and I have not had any luck since I originally reported the issue to PJSIP without response here: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2015-April/018313.html. I have tracked down what seems to be the offending code block and offered a patch here http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2015-May/018386.html that "resolves" the issue, but probably isn't the right resolution.
> I have also reported the issue to Kamailio here https://github.com/kamailio/kamailio/issues/120.
> This issue also affects other SIP software using the PJSIP stack, such as CSipSimple and came up during my WebRTC Kamailio-Asterisk integration.
> In many cases WebSocket connections need to be treated as though they are NATed and Kamailio has good support for this in part by adding a Contact header alias parameter which looks something like the following:
> {code}
> Contact: <sip:wstest1 at example.com;gr=urn:uuid:2e54e8a2-66e4-433a-a024-
> b57f3665a44b;alias=[2001:db8::99]~43691~6>
> {code}
> Unfortunately, PJSIP (both in Asterisk 13.3.2 and CSipSimple nightly build) 
> chokes when parsing the 'alias' parameter, giving the following error:
> PJSIP syntax error exception when parsing 'Request Line' header on line 11 col 105:
> Where line 11 is the Contact header, and column 105 is the '4' immediately 
> after
> {code}alias=[2001:db8::99]~{code}
> in the Contact header.
> As such, the INVITE never receives any response and is re transmitted by the caller over and over.
> The full example SIP INVITE is as follows:
> {code}
> INVITE sip:testuser at example.com SIP/2.0
> Record-Route: <sip:10.0.0.1;r2=on;lr=on;ftag=t5r2736hf9;nat=yes>
> Record-Route: <sip:
> [2001:db8::98]:5061;transport=ws;r2=on;lr=on;ftag=t5r2736hf9;nat=yes>
> Via: SIP/2.0/UDP 
> 10.0.0.1;branch=z9hG4bKa3e8.2bb6508fbc0cf8cc55c1eb6c0eca0b38.0
> Via: SIP/2.0/WSS 
> 2e6orc23ptjv.invalid;rport=43691;received=2001:db8::99;branch=z9hG4bK450538
> Max-Forwards: 69
> To: <sip:testuser at example.com>
> From: "WS Test User 1" <sip:wstest1 at example.com>;tag=t5r2736hf9
> Call-ID: uugmpjgjpoklrnf0um56
> CSeq: 7244 INVITE
> Contact: <sip:wstest1 at example.com;gr=urn:uuid:2e54e8a2-66e4-433a-a024-
> b57f3665a44b;alias=[2001:db8::99]~43691~6>
> Allow: ACK,CANCEL,BYE,OPTIONS,INFO,NOTIFY,INVITE
> Content-Type: application/sdp
> Supported: gruu,outbound
> User-Agent: SIP.js/0.6.4
> Content-Length: 2768
> v=0
> o=- 867554869709517848 2 IN IP4 10.0.0.1
> s=-
> t=0 0
> a=msid-semantic: WMS livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH
> m=audio 30158 RTP/SAVP 111 103 104 9 0 8 106 105 13 126
> c=IN IP4 10.0.0.1
> a=rtpmap:111 opus/48000/2
> a=fmtp:111 minptime=10; useinbandfec=1
> a=rtpmap:103 ISAC/16000
> a=rtpmap:104 ISAC/32000
> a=rtpmap:9 G722/8000
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:106 CN/32000
> a=rtpmap:105 CN/16000
> a=rtpmap:13 CN/8000
> a=rtpmap:126 telephone-event/8000
> a=maxptime:60
> a=ssrc:1444733772 cname:CuBdEZ9bIWQc1sE+
> a=ssrc:1444733772 msid:livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH 
> ebd0066b-73b9-467c-b696-36e0fa7d72b7
> a=ssrc:1444733772 mslabel:livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH
> a=ssrc:1444733772 label:ebd0066b-73b9-467c-b696-36e0fa7d72b7
> a=sendrecv
> a=rtcp:30159
> a=rtcp-mux
> a=crypto:1 AES_CM_128_HMAC_SHA1_80 
> inline:/fmyETo1BwAlupltb64sy5Za6e37BW0p5jMmvqHU
> a=setup:actpass
> a=fingerprint:sha-1 
> 76:27:60:1E:64:94:B4:6E:8A:64:72:2D:41:2C:B8:F3:FF:4C:1D:56
> a=ice-ufrag:U4XlaM4U
> a=ice-pwd:HqnTPTU5DY3j1yB4XVEL9rs1tn
> a=candidate:vVzo18e51E8EXCNy 1 UDP 2130706431 10.0.0.1 30158 typ host
> a=candidate:vVzo18e51E8EXCNy 2 UDP 2130706430 10.0.0.1 30159 typ host
> a=candidate:xCpWH2paVucFSQXn 1 UDP 2130706175 2001:db8::1 30158 typ host
> a=candidate:xCpWH2paVucFSQXn 2 UDP 2130706174 2001:db8::1 30159 typ host
> m=video 30196 RTP/SAVP 100 116 117 96
> c=IN IP4 10.0.0.1
> a=rtpmap:100 VP8/90000
> a=rtcp-fb:100 ccm fir
> a=rtcp-fb:100 nack
> a=rtcp-fb:100 nack pli
> a=rtcp-fb:100 goog-remb
> a=rtpmap:116 red/90000
> a=rtpmap:117 ulpfec/90000
> a=rtpmap:96 rtx/90000
> a=fmtp:96 apt=100
> a=ssrc-group:FID 616715905 3177427003
> a=ssrc:616715905 cname:CuBdEZ9bIWQc1sE+
> a=ssrc:616715905 msid:livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH 
> bb5df7ec-28a9-4e94-89a3-2ebb45a9f5bb
> a=ssrc:616715905 mslabel:livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH
> a=ssrc:616715905 label:bb5df7ec-28a9-4e94-89a3-2ebb45a9f5bb
> a=ssrc:3177427003 cname:CuBdEZ9bIWQc1sE+
> a=ssrc:3177427003 msid:livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH 
> bb5df7ec-28a9-4e94-89a3-2ebb45a9f5bb
> a=ssrc:3177427003 mslabel:livWfUwMWQJMemgnFyBQDf1VXUo9Q0AXwHnH
> a=ssrc:3177427003 label:bb5df7ec-28a9-4e94-89a3-2ebb45a9f5bb
> a=sendrecv
> a=rtcp:30197
> a=rtcp-mux
> a=crypto:1 AES_CM_128_HMAC_SHA1_80 
> inline:qQRmOwum0YFHgKKzt2dRX0uAQhSwlmxscI3P3JUI
> a=setup:actpass
> a=fingerprint:sha-1 
> 76:27:60:1E:64:94:B4:6E:8A:64:72:2D:41:2C:B8:F3:FF:4C:1D:56
> a=ice-ufrag:ISaptX08
> a=ice-pwd:mxP343kHexU8SwtbCeRj4WyMNI
> a=candidate:vVzo18e51E8EXCNy 1 UDP 2130706431 10.0.0.1 30196 typ host
> a=candidate:vVzo18e51E8EXCNy 2 UDP 2130706430 10.0.0.1 30197 typ host
> a=candidate:xCpWH2paVucFSQXn 1 UDP 2130706175 2001:db8::1 30196 typ host
> a=candidate:xCpWH2paVucFSQXn 2 UDP 2130706174 2001:db8::1 30197 typ host
> {code}


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