[Kamailio-Users] SDP ending with CRLF and a=nortpproxy:yes

Schober Walter Walter.Schober at neotel.at
Sat Sep 27 14:13:23 CEST 2008


Hi!

Same issue with 1.4.0. I'm migrating from 1.1.1 to 1.4.0, but force_rtp_proxy() now adds a sdp line with a beginning 0x00, so line looks like 
0000   00 61 3d 6e 6f 72 74 70 70 72 6f 78 79 3a 79 65  .a=nortpproxy:ye
0010   73                                               s
But no \r\n\r\n in front anymore in 1.4.0.

Someone to direct me to the propper source file,pls?

Walter 

> -----Ursprüngliche Nachricht-----
> Von: users-bounces at lists.kamailio.org 
> [mailto:users-bounces at lists.kamailio.org] Im Auftrag von 
> Daniel-Constantin Mierla
> Gesendet: Montag, 15. September 2008 14:23
> An: Jerome Martin
> Cc: users at lists.kamailio.org
> Betreff: Re: [Kamailio-Users] SDP ending with CRLF and 
> a=nortpproxy:yes
> 
> Hi Jerome,
> 
> On 09/15/08 13:43, Jerome Martin wrote:
> > Hi All,
> >
> > Just FYI, I had to disable the nortpproxy test here because 
> it breaks 
> > thomson ST2030 endpoints : with that line, they would just plain 
> > ignore the messages containing the SDP ...
> was i with malformed SDP (empty lines inside SDP before the 
> a= line), or just the presence of the a=nortpproxy:yes line 
> made the ST2030 go mad?
> 
> Cheers,
> Daniel
> 
> >
> > Cheers,
> >
> > On Fri, 2008-09-12 at 18:12 +0300, Daniel-Constantin Mierla wrote:
> >> On 09/11/08 16:10, Klaus Darilion wrote:
> >> > A similar bug was also described in opensips. They tried 
> to fix it 
> >> > but the bug is still present. I wonder if this is 
> something new or 
> >> > if the bug is thre since the beginning of nathelper but did not 
> >> > occured until now
> >> >   
> >> maybe this can be fixed by using the sdp parser available 
> now in core. 
> >> nathelper has quite limited sdp parsing capabilities now. 
> the issue 
> >> is to find the proper hook to add the lump with
> >>
> >> a=nortpproxy:yes\r\n"
> >>
> >> Cheers,
> >> Daniel
> >>
> >>
> >> > klaus
> >> >
> >> > Aymeric Moizard schrieb:
> >> >   
> >> >> Hi,
> >> >>
> >> >> I just happen to find an issue with a software trying to call 
> >> >> through my openser-1.3.1
> >> >>
> >> >> After inserting "a=nortpproxy:yes\r\n", the message coming out 
> >> >> openser is:
> >> >>
> >> >> [normal sdp packet]
> >> >> a=fmtp:101 0-15\r\n
> >> >> \r\n
> >> >> \r\n
> >> >> "a=nortpproxy:yes\r\n"
> >> >>
> >> >> No matter who is responsible in that specific case (the SDP 
> >> >> received by openser with several \r\n looks not 
> compliant to me).
> >> >>
> >> >> I think openser should add "a=nortpproxy:yes" in 
> different place 
> >> >> in the SDP packet: NOT at the end of the SDP body. The 
> "a=nortpproxy:yes"
> >> >> should be either put at the global attribute level or 
> right below 
> >> >> a m= line.
> >> >>
> >> >> This approach would solve such issue and would be much more 
> >> >> adequate to the requirement: currently it's not very 
> possible to 
> >> >> relay an audio stream and not relay a video stream with the 
> >> >> current approach.
> >> >>
> >> >> tks,
> >> >> Aymeric MOIZARD / ANTISIP
> >> >> amsip - http://www.antisip.com
> >> >> osip2 - http://www.osip.org
> >> >> eXosip2 - http://savannah.nongnu.org/projects/exosip/
> >> >>
> >> >>
> >> >> _______________________________________________
> >> >> Users mailing list
> >> >> Users at lists.kamailio.org <mailto:Users at lists.kamailio.org> 
> >> >> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
> >> >>     
> >> >
> >> > _______________________________________________
> >> > Users mailing list
> >> > Users at lists.kamailio.org <mailto:Users at lists.kamailio.org> 
> >> > http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
> >> >
> >> >   
> >>
> >>     
> >
> > *Jérôme Martin **| **LongPhone*
> > *Responsable Architecture Réseau*
> > 122, rue la Boetie | 75008 Paris
> > Tel :  +33 (0)1 56 26 28 44
> > Fax : +33 (0)1 56 26 28 45
> > Mail : *jmartin*@longphone.fr
> > Web : www.longphone.com <http://www.longphone.com>
> >
> >
> > 
> ----------------------------------------------------------------------
> > --
> >
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> 
> --
> Daniel-Constantin Mierla
> http://www.asipto.com
> 
> 
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