sr-users August 2012

sr-users@lists.kamailio.org

77 participants
126 discussions

postgres in kamailio 3.3.0-9.1
by Andrew O. Zhukov 09 Aug '12

09 Aug '12

The same trouble with: completely updated Centos 5 the last Kamailio RPM from http://download.opensuse.org/repositories/home:/kamailio:/telephony/RedHat_… and postgresql-libs.x86_64.8.1.23-5.el5_8 several month ago I try postgresql84-libs.x86_64 with the same result. It's not possible to use Kamailio RPM with postgres backend. Need to assemble it manually. Bruno Bresciani wrote: > Hi, > > I configure the Kamailio 3.1.2 with postgres but I cann't start. In the > log file is generated the following error: > > // > > ERROR: load_module: could not open module > </home2/local/kamailio/lib/kamailio/modules/db_ > postgres.so>: /home2/local/kamailio/lib/kamailio/modules/db_postgres.so: > undefined symbol: PQdescribePrepared Have you built Kamailio yourself? Looks like db_postgres.so can not find the postgresql libraries, or it was built with a different library version. Maybe ldd can give you some details: ldd /home2/local/kamailio/lib/kamailio/modules/db_postgres.so regards Klaus

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Re: [SR-Users] Problem Starting kamailio on Debian Squeeze [solved]
by JR Richardson 08 Aug '12

08 Aug '12

On Wed, Aug 8, 2012 at 12:13 PM, JR Richardson <jmr.richardson(a)gmail.com> wrote: > Hi All, > > I'm running redundant kamailio 3.0.4 servers in production, have been > for a long time with great success. They were installed on debian > Lenny. One of my servers crashed. I can't seem to do a debian lennyy > install because that version is archived now. I'm trying to install > on debian squeeze but still using kamailio 3.0.4 for compatibility > reasons. The install went pretty normal except during boot up, > kamailio starts before mysql and networking so it starts then exists. > > Once the server is fully booted, kamailio starts with the init script > without error. > > I have adjusted the init script to check for networking and mysql to > start first and performed an 'update-rc.d kamailio defaults' but still > no luck. > > Any help will be appreciated. > > Thanks. > > JR > -- > JR Richardson > Engineering for the Masses Yep, this is an http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot issue. Thanks Alex. The old init scrip that ships with Kamailio 3.0.4 that I am using is not 100% compatible so I pulled a hack out of the hat and inserted 'sleep 20' before of 'check_fork ()' in the kamailio init script. Kamailio now waits long enough for all services to start before launching, simple but effective. Thanks. JR -- JR Richardson Engineering for the Masses

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Porblem Starting kamailio on Debian Squeeze
by JR Richardson 08 Aug '12

08 Aug '12

Hi All, I'm running redundant kamailio 3.0.4 servers in production, have been for a long time with great success. They were installed on debian Lenny. One of my servers crashed. I can't seem to do a debian lennyy install because that version is archived now. I'm trying to install on debian squeeze but still using kamailio 3.0.4 for compatibility reasons. The install went pretty normal except during boot up, kamailio starts before mysql and networking so it starts then exists. Once the server is fully booted, kamailio starts with the init script without error. I have adjusted the init script to check for networking and mysql to start first and performed an 'update-rc.d kamailio defaults' but still no luck. Any help will be appreciated. Thanks. JR -- JR Richardson Engineering for the Masses

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Kernel Module Issue
by Vijay Thakur 08 Aug '12

08 Aug '12

Thanks for the hint. What is the file name in /etc/modprob.d/ where i am supposed to enter this module name to disable it. Thanks Vijay Tha Message: 1 Date: Mon, 06 Aug 2012 09:01:03 -0400 From: Richard Fuchs<rfuchs(a)sipwise.com> Subject: Re: [SR-Users] Kernel Droping SIP packet To:sr-users@lists.sip-router.org Message-ID:<501FC00F.6000604(a)sipwise.com> Content-Type: text/plain; charset="iso-8859-1" On 08/06/12 06:08, Vijay Thakur wrote: > Hi all, > > I have configure Kamailio 3.1.5 Server. All things are working fine. > When i make a call from Soft phone (X-Lite) to iphone, all is working > fine. But in other case call from iphone to Softphone is not working, > even not ringing. During checking the logs i am getting the error: > > Aug 3 04:36:09 localhost kernel: nf_ct_sip: dropping packetIN=eth0 OUT= > MAC=f2:3c:91:ae:92:36:c8:4c:75:f5:c4:ff:08:00 SRC=122.xxx.xxx.77 > DST=xx.116.xx.23 LEN=1482 TOS=0x00 PREC=0x00 TTL=51 ID=50183 DF > PROTO=TCP SPT=15587 DPT=5060 SEQ=3285635734 ACK=3113844065 WINDOW=5763 > RES=0x00 ACK URGP=0 OPT (0101080A000E20610932B25A) This is coming from nf_conntrack_sip, which is a netfilter connection tracking kernel module for SIP. I've never used it, but judging from what Google brings up, it seems to be very buggy. You should be able to just unload it by issuing "rmmod nf_conntrack_sip". If that doesn't work and/or if you want to keep it from auto-loading, you can blacklist it in /etc/modprobe.d/ and then reboot. HTH copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited. -----------------------------------------------------------------------------------------------------------------

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AVPOPS / TM behavior
by Brandon Armstead 08 Aug '12

08 Aug '12

Hello, I am curious if there is any documentation on how AVP's processing works in the following scenario below. UAC 1 -> KAMAILIO -> KAMAILIO -> DEST It seems that AVP's I set between UAC 1 -> KAMAILIO are lost once I relay back to the same KAMAILIO proxy (self)? Is there any documentation on why or when this would occur? Is there a better way to handle such a scenario? i.e. more dynamic internal routing, vs relaying to self. Thanks as always in advance! Sincerely, Brandon Armstead

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local_timer: add_timeout: 0 expire timer added
by Barthel Marco (CI/AFU1) 08 Aug '12

08 Aug '12

Hi, Occasionally I can see the following log output from Kamailio in our systems: WARNING: <core> [local_timer.c:97]: WARNING: local_timer: add_timeout: 0 expire timer added Can someone explain what it means? Many thanks. Mit freundlichen Grüßen / Best regards Marco Barthel Robert Bosch GmbH (CI/AFU1) www.bosch.com<http://www.bosch.com> Tel. +49 711 811-3602341 marco.barthel(a)de.bosch.com<mailto:marco.barthel@de.bosch.com> Sitz: Stuttgart, Registergericht: Amtsgericht Stuttgart, HRB 14000; Aufsichtsratsvorsitzender: Franz Fehrenbach; Geschäftsführung: Volkmar Denner, Siegfried Dais; Stefan Asenkerschbaumer, Bernd Bohr, Rudolf Colm, Dirk Hoheisel, Christoph Kübel, Uwe Raschke, Wolf-Henning Scheider, Werner Struth, Peter Tyroller

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Re: [SR-Users] Kamailio with APNS
by Duong Manh Truong 08 Aug '12

08 Aug '12

As your first solution with UAC module: "As a plan B we instead opted for sending via uac module the invite to an oversip instance (it's open-source since a week or two), which triggers an HTTP request towards APNS, and on kamailio check with inv-timers every few seconds whether the client came online in the meanwhile, then complete the call. The drawback is that you can wait only for so many loop interations due to the max branch limitation in kamailio (you'd need to recompile it to set it higher)." I read about the UAC module but feeling very hard to implement it as your suggestion, http://kamailio.org/docs/modules/3.3.x/modules_k/uac.html Please give me and others more details about this? Which functions those we need ? Are they in: UAC module, Exec module, tm module ?? Thanks

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set_advertised_port using pseudovariable
by Neven Boric 07 Aug '12

07 Aug '12

Hi, I'm trying to use Kamailio as an outbound proxy behind a NAT (all clients and kamailio itself are behind the same NAT): UACs -> Kamailio -> NAT router -> PBX (hosted, public server) I figured I could detect the external source port used by the router by periodically sending an OPTIONS request to the public server, then capture the rport value in the reply, and use that port as an input to set_advertised_port. Because I'm doing this periodically, it should have the added value of keeping the NAT mapping alive. Otherwise, I should be able to detect it, as the rport value will change. I managed to periodically send the OPTIONS request, read the rport value on the reply message and store it on a pseudovariable using: $var(rport) = $sel(v.rport); But when I try to use that value to set the advertised port, I get an error, as if set_advertised_port only accepted literal values: if( $var(rport) != 0) { set_advertised_port($var(rport)); } Not starting Kamailio: invalid configuration file! -e 0(4692) : <core> [cfg.y:3591]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 504, column 24-34: syntax error 0(4692) : <core> [cfg.y:3594]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 504, column 35: bad argument, string expected ERROR: bad config file (2 errors) So, am I missing something or does set_advertised_port actually only accept literal values? Thanks Neven Boric

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Re: [SR-Users] sr-users Digest, Vol 87, Issue 18
by Vijay Thakur 07 Aug '12

07 Aug '12

Thanks all of your for reply. Here is the output of command: root@li496-23:~# lsmod | grep -i sip root@li496-23:~# This command is giving blank output. This is linnode server. So the zcat /proc/config.gz command reveals the kernel loaded modules. You can see complete output at pastebin: http://pastebin.com/a0iqpc4D. Thanks in advance Vijay Th. On Monday 06 August 2012 08:26 PM, sr-users-request(a)lists.sip-router.org wrote: > Send sr-users mailing list submissions to > sr-users(a)lists.sip-router.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > or, via email, send a message with subject or body 'help' to > sr-users-request(a)lists.sip-router.org > > You can reach the person managing the list at > sr-users-owner(a)lists.sip-router.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of sr-users digest..." > > > Today's Topics: > > 1. Re: Kernel Droping SIP packet (Richard Fuchs) > 2. Re: Kernel Droping SIP packet (Alex Balashov) > 3. Re: Kernel Droping SIP packet (Konstantin M.) > 4. Re: Kernel Droping SIP packet (Alex Balashov) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 06 Aug 2012 09:01:03 -0400 > From: Richard Fuchs <rfuchs(a)sipwise.com> > Subject: Re: [SR-Users] Kernel Droping SIP packet > To: sr-users(a)lists.sip-router.org > Message-ID: <501FC00F.6000604(a)sipwise.com> > Content-Type: text/plain; charset="iso-8859-1" > > On 08/06/12 06:08, Vijay Thakur wrote: >> Hi all, >> >> I have configure Kamailio 3.1.5 Server. All things are working fine. >> When i make a call from Soft phone (X-Lite) to iphone, all is working >> fine. But in other case call from iphone to Softphone is not working, >> even not ringing. During checking the logs i am getting the error: >> >> Aug 3 04:36:09 localhost kernel: nf_ct_sip: dropping packetIN=eth0 OUT= >> MAC=f2:3c:91:ae:92:36:c8:4c:75:f5:c4:ff:08:00 SRC=122.xxx.xxx.77 >> DST=xx.116.xx.23 LEN=1482 TOS=0x00 PREC=0x00 TTL=51 ID=50183 DF >> PROTO=TCP SPT=15587 DPT=5060 SEQ=3285635734 ACK=3113844065 WINDOW=5763 >> RES=0x00 ACK URGP=0 OPT (0101080A000E20610932B25A) > This is coming from nf_conntrack_sip, which is a netfilter connection > tracking kernel module for SIP. I've never used it, but judging from > what Google brings up, it seems to be very buggy. You should be able to > just unload it by issuing "rmmod nf_conntrack_sip". If that doesn't work > and/or if you want to keep it from auto-loading, you can blacklist it in > /etc/modprobe.d/ and then reboot. > > HTH > >

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LCR - inconsistent return results for gateway selection.
by Graham Wooden (personal) 06 Aug '12

06 Aug '12

Hello, I am noticing that some of the time (not always consistent) that load_gw() / next_gw() will not always return the gateway with the lowest priority number. For example, when I look up a route for 205595, I have three grp_ids (gateways) that services the destination; with them being separated with 1, 2, and 3 priorities: id prefix from_uri grp_id priority 7468 205595 NULL 1 1 7469 205595 NULL 2 2 7470 205595 NULL 7 3 About 1/2 of the time, it will chose the priority 1 gateway, as it should. But randomly, it will choose the other gateways on the first try. In this particular case, all three gateways are going to the same destination IP (just using different hostnames in the "gw" mySQL table) - so I know the gateways are up. Also, I am not noticing any failures and going to the next gateway, like it choosing #1, it failing and then going to #2. What kind of debugging can I do on this gateway selection process? I am running 1.5.5 notls, and have approximately 425K routes. Kamailio is started with "-m 512" for the additional memory. Thanks, -graham

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sr-users August 2012