[SR-Users] Kamailio Crash when modifying username of Request Uri
Daniel-Constantin Mierla
miconda at gmail.com
Thu Dec 4 15:18:08 CET 2014
Hello,
do you still get a core file? The easiest to troubleshoot is to get the
backtrace from the core with gdb. Setting up a testbed requires more
resources, not trivial when out of the office.
Cheers,
Daniel
On 04/12/14 14:21, Timo Klecker wrote:
>
> Hi Daniel,
>
>
>
> I was able to recreate the Issue with the newer version (4.1.6).
> Please find attached Kamailio configuration and sip-invite. (Please
> change modules path according to installation)
>
> The attached Kamailio configuration is a (very) simplified
> configuration we are running in production.
>
>
>
>
>
> 10.10.207.20 is a server running the attached Kamailio configuration.
>
> 10.10.210.71 is a server running sipsak, sending the attached invite.
>
>
>
> sipsak -s sip:10.10.207.20:5060 -f invite.txt
>
>
>
> The crash seems to occur due to a missing exit of the configuration
> loop. So to get rid of the crash I would break the loop if $rU equals
> null after modification in MODIFY_NUMBER.
>
>
>
> The issue now simplifies to:
>
> You cannot empty $rU when a password is set, because the URI becomes
> invalid due to missing @: bad uri <sip::pass10.10.207.20>
>
>
>
>
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: NOTICE: <script>: ru initial:
> sip:123456:pass at 10.10.207.20
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:304]:
> pv_get_ruri_attr(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: NOTICE: <script>: rU set to: <null>
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:236]:
> pv_get_ruri(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: NOTICE: <script>: ru set to: <null>
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:304]:
> pv_get_ruri_attr(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [action.c:805]:
> do_action(): ERROR: do_action: bad uri <sip::pass10.10.207.20>,
> dropping packet
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [action.c:1553]:
> do_action(): run action error at: :0
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:2080]:
> pv_set_ruri_user(): do action failed
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [lvalue.c:363]:
> lval_pvar_assign(): setting pvar failed
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [lvalue.c:416]:
> lval_assign(): assignment failed at pos: (49,11-49,21)
>
>
>
> This loops:
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:304]:
> pv_get_ruri_attr(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: NOTICE: <script>: rU set to: <null>
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:236]:
> pv_get_ruri(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: NOTICE: <script>: ru set to: <null>
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:304]:
> pv_get_ruri_attr(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:304]:
> pv_get_ruri_attr(): failed to parse the R-URI
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [lvalue.c:356]:
> lval_pvar_assign(): non existing right pvar
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [action.c:805]:
> do_action(): ERROR: do_action: bad uri <sip::pass10.10.207.20>,
> dropping packet
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [action.c:1553]:
> do_action(): run action error at: :0
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: pv [pv_core.c:2059]:
> pv_set_ruri_user(): do action failed)
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [lvalue.c:363]:
> lval_pvar_assign(): setting pvar failed
>
> Dec 4 13:27:50 /sbin/kamailio[8043]: ERROR: <core> [lvalue.c:416]:
> lval_assign(): assignment failed at pos: (46,11-46,26)
>
>
>
>
>
>
>
>
>
> Kind regards
>
> Timo Klecker
>
>
>
>
>
> *Von:*sr-users-bounces at lists.sip-router.org
> [mailto:sr-users-bounces at lists.sip-router.org] *Im Auftrag von
> *Daniel-Constantin Mierla
> *Gesendet:* Montag, 1. Dezember 2014 23:35
> *An:* Kamailio (SER) - Users Mailing List
> *Betreff:* Re: [SR-Users] Kamailio Crash when modifying username of
> Request Uri
>
>
>
> Hello,
>
> the version is indeed very old -- however, you got a core dump,
> according to the logs, maybe you can send over the backtrace to see
> where it crashed.
>
> Cheers,
> Daniel
>
> On 28/11/14 18:05, Timo Klecker 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> <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 <mailto:sr-users at lists.sip-router.org>
>
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
>
> --
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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