[pjsip] via header and TLS on a Freeswitch PBX

Benny Prijono bennylp at teluu.com
Mon Aug 24 11:43:43 EDT 2009


this was fixed in the trunk just few days ago. We will now send in uppercase.


On Mon, Aug 24, 2009 at 4:36 PM, Pierre-Luc
Bacon<pierre-luc.bacon at savoirfairelinux.com> wrote:
> I am implementing TLS transport from the PJSIP library and ran over a
> via header problem while trying to register to Freeswitch server.
> >From the debug output on the freeswitch box I see:
> "nta: Via check: invalid transport "SIP/2.0/tls" from
> Where is from the the softphone that is implementing
> Digging into the freeswitch source code, I saw that this message was
> coming from
> libs/sofia-sip/libsofia-sip-ua/nta/nta.c
> where they do "[...]!su_strmatch(v->v_protocol, tpv->v_protocol)", and
> su_strmatch is a wrapper over strcmp.
> It turns out that "SIP/2.0/tls" (pjsip) is compared with
> "SIP/2.0/TLS" (sofia) and strcmp being case sensitive, the match fails.
> I tried to look in RFC3261 to see what was said about that but I
> couldn't find it exactly. I'm pretty sure that PJSIP is doing it right
> and that the via header should be processed in a case-insensitive way.
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