[SR-Users] Websockets, set_contact_alias(), & IPv6

[Anthony Messina]

On Sunday, March 29, 2015 08:57:44 PM Anthony Messina wrote:
> On Sunday, March 29, 2015 05:23:26 PM Anthony Messina wrote:
> > I've been working on Kamailio websocket integration and I believe I'm
> > having issues with the IPv6 address representation in the Contact
> > header's alias parameter.  After Googling, it appears after
> > https://github.com/kamailio/kamailio/commit/814c08f3 the IPv6 contact is
> > represented in brackets [].  However, it when using websockets, and the
> > alias= parameter uses brackets [] around and IPv6 address, there are
> > message parsing issues.
> > 
> > With a header such as the following
> > Contact:
> > <sip:wstest1 at example.com;gr=urn:uuid:26140e27-0ab7-4e65-98e3-3d0909b1434e;
> > al ias=[2001:db8:0:1]~48768~6>
> > 
> > Asterisk 13.2.0 will give the following error:
> > pjsip:0 <?>:     sip_transport. Error processing 1855 bytes packet from
> > UDP
> > 10.77.79.3:5060 : PJSIP syntax error exception when parsing 'Request Line'
> > header on line 12 col 129:
> > 
> > And when sipjs, or jssip are used with either Firefox or Chrome, they send
> > garbage in the ACK request URI:
> > 
> > Kamailio logs something like the following and the ACK cannot be
> > processed:
> > WARNING: sanity [sanity.c:236]: check_ruri_scheme(): failed to parse
> > request uri [�a�{1me▒s�na at 50�9���1.�8:�2v0;i��a��=11>7�n7x>10O�2v0~1]
> > 
> > Is it proper to have [] brackets around the IPv6 alias address in the
> > Contact header?  Does the value need to be quoted?
> > 
> > If I force the browser to use IPv4, without changing anything else, both
> > jssip and sipjs work perfectly in Firefox and Chrome.
> 
> It seems that the topoh module doesn't cope with this well.  Disabling the
> topoh module seems to resolve the issue, unfortunately.

I've added some additional information and an example INVITE here:
https://github.com/kamailio/kamailio/issues/120

-- 
Anthony - https://messinet.com/ - https://messinet.com/~amessina/gallery
8F89 5E72 8DF0 BCF0 10BE 9967 92DC 35DC B001 4A4E
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