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

[Daniel-Constantin Mierla]

Hello,

not sure I got what you tried in the past, but updating the r-uri value
was for very long time (perhaps from like 2006) possible by assigning an
expression to $ru. like:

$ru = "sip:"+$var(user) + "@" + $var(domain);

rewrite_uri() function from core worked always with static  value as
parameter.

Cheers,
Daniel

On 01/12/14 23:20, Will Ferrer wrote:
> 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
> <mailto: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
>     <mailto:sip%3A123456%3Apass 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 <http://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
>
>
>
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>
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

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