[SR-Users] Kamailio Transformation Assignment to an AVP

[brandon at cryy.com]

Daniel,

    I've also tried with script vars.  I think it has something to do with the actual dynamic psuedo variable $rb.  Var assignment and mangling does not work for me either.  I.e. Keep everything the same except $var(test) = $rb and so on.  Let me know if this makes sense.

Sincerely,
Brandon Armstead

*Forgot to reply to ALL (resending)
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Daniel-Constantin Mierla <miconda at gmail.com>
Date: Tue, 27 Jul 2010 11:50:36 
To: Brandon Armstead<brandon at cryy.com>
Cc: <users at lists.kamailio.org>; <devel at lists.kamailio.org>
Subject: Re: [SR-Users] Kamailio Transformation Assignment to an AVP

Hello,

interesting, when I troubleshooted before your previous report, I used 
this piece of cfg:

xlog("==================================\n");
$var(b) =
"v=0\r\n"
"o=- 5 2 IN IP4 192.168.3.100\r\n"
"s=CounterPath Bria\r\n"
"c=IN IP4 174.37.XX.XXX\r\n"
"t=0 0\r\n"
"m=audio 64192 RTP/AVP 107 0 8 18 101\r\n"
"a=sendrecv\r\n"
"a=rtpmap:107 BV32/16000\r\n"
"a=rtpmap:18 G729/8000\r\n"
"a=fmtp:18 annexb=yes\r\n"
"a=rtpmap:101 telephone-event/8000\r\n"
"a=fmtp:101 0-15\r\n"
"a=nortpproxy:yes\r\n";

$var(c) = $(var(b){re.subst,|.*m=audio [0-9]+ RTP/AVP ([0-9 ]+).+|\1|s});
xlog("==================================: [$var(c)]\n");

And the xlog printed properly the value of $var(c) - meaning that it was 
assigned the right value. I will test with avps next time I have a chance.

Cheers,
Daniel


On 7/26/10 9:11 PM, Brandon Armstead wrote:
> Hello,
>
>     I have the following transformation on the SDP Body:
>
> $(rb{re.subst,/^(.*)m=audio ([0-9]+) RTP\/AVP ([0-9 
> ]+)\015\012(.*)$/\3/s})
>
> However when I assign this to an AVP, i.e.
>
> $avp(s:sdp-payloads) = $(rb{re.subst,/^(.*)m=audio ([0-9]+) RTP\/AVP 
> ([0-9 ]+)\015\012(.*)$/\3/s});
>
> I receive back a NULL result / transformation "regex does not match" 
> is what I receive with high verbose syslog on kamailio.
>
> HOWEVER.
>
> When I do something like this:
>
> xlog("L_INFO", "Payloads Available: $(rb{re.subst,/^(.*)m=audio 
> ([0-9]+) RTP\/AVP ([0-9 ]+)\015\012(.*)$/\3/s})");
>
> It executes properly -- transformation regex matches and the payloads 
> are displayed as expected.
>
> If anyone can provide any insight as to what I may be doing wrong it 
> would be greatly appreciated.
>
> P.S. Kamailio SVN Revision # 2:5906M (1.5.2-notls).
>
> Also I CC'ed devel list (as I do believe this may be a bug).
>
> Thanks!
>
> Sincerely,
> Brandon Armstead
>
>
> _______________________________________________
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>    

-- 
Daniel-Constantin Mierla
http://www.asipto.com/


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