[SR-Users] Kamailio Crash when modifying username of Request Uri

[Will Ferrer]

Hi Timo

We had some issues changing the $rU as well.

In the end we wrote a perl function to do it:

sub rewrite_uri {
    my $m = shift;
    my $uri = shift;
  $m->rewrite_ruri($uri);
    return -1;
}

Which we call like so:

perl_exec("rewrite_uri", <value to set it to>);

If I recall correctly, our issue was that we could not pass in a variable,
an avp, or a concatenated string with kamailios rewrite uri function:

http://www.kamailio.org/wiki/cookbooks/4.2.x/core#rewriteuri

The function I just gave above however may be fixed now, it was a year or 2
ago we wrote the perl script.

I hope that helps.

All the best.

Will Ferrer

Switchsoft Inc





On Fri, Nov 28, 2014 at 10:05 AM, Timo Klecker <klecker at decoit.de> wrote:

> Hi all!
>
> Our Kamailio (3.1.4) crashed when modifying the username-Part of a Request
> URI using:
>
> $rU = $(rU{s.strip,6});
>
> Initial Request URI:
> /sbin/kamailio[40658]: NOTICE: <script>: [ INVITE ] Got new Packet to
> sip:123456:pass at sip.custom.com
>
> The config-script now removed the first 6 chars from the username part and
> would replace them in one of the following lines, but Kamailio had problems
> here:
>
> /sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
> /sbin/kamailio[40658]: NOTICE: <script>:  Strip from Head: Request
> Username:
> <null>  //  $rU
> /sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
> /sbin/kamailio[40658]: ERROR: <core> [action.c:801]: ERROR: do_action: bad
> uri <sip::passsip.custom.com>, dropping packet
>
>
> Is there maybe a error when modifying a uri with password this way? Do we
> have to change this?
>
>
>
>
> Ultimately Kamailio crashed:
> /sbin/kamailio[40658]: ERROR: <core> [action.c:1513]: run action error at:
> :0
> /sbin/kamailio[40658]: ERROR: pv [pv_core.c:1761]: do action failed
> /sbin/kamailio[40658]: ERROR: <core> [lvalue.c:358]: setting pvar failed
> /sbin/kamailio[40658]: ERROR: <core> [lvalue.c:411]: assignment failed at
> pos: (319,10-319,34)
> /sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
>
> Like 5000 lines more of
> /sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
> Due to rerouting internal and trying to remove more parts of the request
> Uri
> using $rU = $(rU{s.strip,6});
>
> Which then concluded to the following:
> /sbin/kamailio[40656]: ALERT: <core> [main.c:741]: child process 40660
> exited by a signal 11
> /sbin/kamailio[40656]: ALERT: <core> [main.c:744]: core was generated
> /sbin/kamailio[40656]: INFO: <core> [main.c:756]: INFO: terminating due to
> SIGCHLD
> /sbin/kamailio[40659]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
> /sbin/kamailio[40682]: INFO: <core> [main.c:807]: INFO: signal 15 received
> /sbin/kamailio[40677]: INFO: <core> [main.c:807]: INFO: signal 15 received
> /sbin/kamailio[40676]: INFO: <core> [main.c:807]: INFO: signal 15 received
> /sbin/kamailio[40678]: INFO: <core> [main.c:807]: INFO: signal 15 received
> [...]
>
>
> I will try to recreate this using the new version (4.1.6) on monday.
>
>
> Kind regards
>
> Timo Klecker
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20141201/079172db/attachment.html>