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

27 Sep 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(a)lists.kamailio.org 
 [mailto:users-bounces@lists.kamailio.org] Im Auftrag von 
 Daniel-Constantin Mierla
 Gesendet: Montag, 15. September 2008 14:23
 An: Jerome Martin
 Cc: users(a)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/
>
>
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> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>     

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 Daniel-Constantin Mierla
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