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

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@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(a)lists.sip-router.org [mailto:sr-users-bounces@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@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(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda