[SR-Users] PRACK support in RTPENGINE module?

[Alex Balashov]

Oh, sorry. I misread; it seemed to me that rtpengine_answer1_f() was
part of a cascade of fixup functions that goes back to
rtpengine_manage(), but not to _answer(). You're right of course.

On Mon, May 04, 2020 at 07:49:19PM +0200, Daniel-Constantin Mierla wrote:

> Hello,
> 
> Chris mentioned that rtpengine_answer() is also not supporting (or is
> ruling out all request types but ACK), so the C code is limiting in both
> cases, no matter using rtpengine_manage() or rtpengine_answer().
> 
> The rtpengine manage() was built as a wrapper around offer()/answer()
> and it makes the decision of which one is executed in various cases
> (request/reply/failure route), but not what offer()/answer() functions
> do internally.
> 
> So in this case the code has to allow execution for PRACK, it was an
> omission, likely not a scenario that popped up so far.
> 
> Cheers,
> Daniel
> 
> On 04.05.20 19:22, Alex Balashov wrote:
> > Hello Chris,
> >
> > rtpengine_manage() is just a wrapper that makes context-sensitive
> > invocations of rtpengine_offer() and rtpengine_answer(), so that you
> > don't have to choose which of them to call manually. But it's not
> > perfect. 
> >
> > There are nevertheless situations where this manual use of the
> > offer/answer functions is necessary, and it sounds like this is one of
> > them.
> >
> > There is a larger question of whether rtpengine_manage() should support
> > PRACK; it seems like the answer is yes. But this lacking cannot be
> > framed as "RTPEngine doesn't support PRACK" or anything like that.
> > RTPEngine can support any SDP-bearing request and reply, since RTPEngine
> > does not care about SIP semantics per se.
> >
> > -- Alex
> >
> > -- 
> > Alex Balashov | Principal | Evariste Systems LLC
> >
> > Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> > Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
> >
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> 
> -- 
> Daniel-Constantin Mierla -- www.asipto.com
> www.twitter.com/miconda -- www.linkedin.com/in/miconda
> 
> 
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-- 
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/