[SR-Users] set_body_multipart and append_body_part

[Diego Nadares]

Hi guys,

I'm trying to append a content type to a message that has only one content
type. I tried using just set_body_multipart and now I'm using set_body
multipart and append_body_part with no success too.

The result is a message with multipart but has "two" sdp and no gtd. It has
the old sdp with no ip changed for rtpproxy and the new sdp with ip changed
BUT with no content type.  And the message has not the end boundary
(--unique-boundary-1.)

Kamailio log has an info and a warning

Dec 26 11:36:22 dwrfsd01 ./kamailio[8847]: INFO: <core>
[msg_translator.c:1693]: get_boundary(): Content-Type hdr has no params
<application/sdp>
Dec 26 11:36:22 dwrfsd01 ./kamailio[8847]: WARNING: <core>
[msg_translator.c:1959]: build_req_buf_from_sip_req(): check_boundaries
error


kamailio.cfg

......

route[RELAY]{
$avp(ch) = 1
....
if ($avp(ch)){
                     set_body_multipart();
                     msg_apply_changes();
                     $var(gtd) ="IAM,\r\nGCI,asdafsdfasd\r\n\r\n";
                     append_body_part("$var(gtd)", "application/gtd",
"signal;handling=optional");
}
....
}

Ngrep

U 2016/12/26 11:36:22.496634 172.16.213.21:5060 -> 172.16.213.38:5060
...
Content-Type: application/sdp.
Content-Length:   137.
.
v=0.
o=user1 53655765 2353687637 IN IP4 172.16.213.21.
s=-.
c=IN IP4 172.16.213.21.
t=0 0.
m=audio 6000 RTP/AVP 8.
a=rtpmap:8 PCMA/8000.

U 2016/12/26 11:36:22.688458 172.16.213.38:5060 -> 172.16.208.11:5060
....
Content-Type: multipart/mixed;boundary="unique-boundary-1".
Mime-Version: 1.0.
Remote-Party-ID: <sip:1152565064 at 172.16.213.38:5060
>;party=calling;privacy=off;screen=no.
.
--unique-boundary-1.
Content-Type: application/sdp.
.
v=0.
o=user1 53655765 2353687637 IN IP4 172.16.213.21.
s=-.
c=IN IP4 172.16.213.21.
t=0 0.
m=audio 6000 RTP/AVP 8.
a=rtpmap:8 PCMA/8000.
.
--unique-boundary-1.
v=0.
o=user1 53655765 2353687637 IN IP4 172.16.213.38.
s=-.
c=IN IP4 172.16.213.38.
t=0 0.
m=audio 58724 RTP/AVP 8.
a=rtpmap:8 PCMA/8000.
a=sendrecv.
a=rtcp:58725.
a=ice-ufrag:hhXDwrco.
a=ice-pwd:5temIXP8veOGuD8Dsllm5HXkWU.

Any help will be very very appreciated!

Thanks in advance.

Diego
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