[SR-Users] Textops and Multipart Body - adding ISUP segfaults Kamailio

[andre second]

Hi Victor,
Many thanks for your reply.
Here is what happens if I amend msg_apply_changes():
 /usr/sbin/kamailio[1705]: ERROR: textops [textops.c:1854]: append_multibody_helper(): Cannot get boundary. Is body multipart? /usr/sbin/kamailio[1705]: INFO: <script>: ISUP Changes Applied Succesfully /usr/sbin/kamailio[1705]: ERROR: <core> [msg_translator.c:1664]: get_boundary(): Content-Type hdr has no params
 /usr/sbin/kamailio[1705]: WARNING: <core> [msg_translator.c:1927]: build_req_buf_from_sip_req(): check_boundaries error
and the SIP message appears as MALFORMED.
If I do msg_apply_changes() in the end, then:
 /usr/sbin/kamailio[2274]: ERROR: textops [textops.c:1854]: append_multibody_helper(): Cannot get boundary. Is body multipart? /usr/sbin/kamailio[2274]: INFO: <script>: ISUP Changes Applied Succesfully /usr/sbin/kamailio[2274]: ERROR: <core> [msg_translator.c:1664]: get_boundary(): Content-Type hdr has no params /usr/sbin/kamailio[2274]: WARNING: <core> [msg_translator.c:1927]: build_req_buf_from_sip_req(): check_boundaries error
I also got same result with kamailio 4.2.
Thanks,Andrei



 


     On Tuesday, July 7, 2015 8:24 PM, Victor Seva <linuxmaniac at torreviejawireless.org> wrote:
   

 On 07/07/2015 04:07 PM, andre second wrote:
> Hi,
> 
> I am using Kamailio version: kamailio 4.3.0 (x86_64/linux) c6aa95 on
> CentOS 6
> 
> I am trying to encapsulate ISUP in the INVITE:
> 
> ...
> if(has_body("application/sdp"))
> {
>      set_body_multipart();
>        if(msg_apply_changes())
>        {
>              $var(acm) = "7e Od 04 55 75 69 20 4d 61 6b 65 43 61 6c 6c";
>                append_body_part("$var(acm)","application/isup;
> version=itu-t92+","signal; handling=optional");
>        xlog("L_INFO", "ISUP Changes Applied Succesfully");
>        }
> }
> ...
> And getting the following error:

I would say if you don't have modified the message already:

if(has_body("application/sdp"))
{
  set_body_multipart();
  $var(acm) = "7e Od 04 55 75 69 20 4d 61 6b 65 43 61 6c 6c";

append_body_part("$var(acm)","application/isup;version=itu-t92+","signal; handling=optional");
  xlog("L_INFO", "ISUP Changes Applied Succesfully");
}

and only call msg_apply_changes() if you need to modify the message later

Anyhow, can you please create an issue at github with a minimal
kamailio.cfg that crash and a backtrace? We should not crash.

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