sr-users March 2012

sr-users@lists.kamailio.org

87 participants
163 discussions

Kamailio modifying ruri during loose-route
by Dan-Cristian Bogos 26 Mar '12

26 Mar '12

Hey Guys, I have noticed some unexpected behavior (at least by me) during my tests. When routing specific ACK message back to 200 OK originator, Kamailio will rewrite the ruri with the value of route header. Is that known or some memory access problem? Call setup: B2BUA(127.0.0.1) -> Kamailio (1.2.3.4) -> End device (2.3.4.5). Bellow is a trace of 200 OK -ACK flow before and after kamailio, together with the xlog capture of ruri before and after calling loose_route on ACK. Thanks in advance for any kind of tip. DanB PS: Since testing with a newer version would be a bit harder due to some particular features I use in 3.1 which are taking a bit of effort to migrate, have tried my luck here before, so hope to get your understanding. Kamailio version: """ root@kam:/home/dan# kamailio -V version: kamailio 3.1.5 (x86_64/linux) flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 4MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: unknown compiled on 07:41:01 Sep 15 2011 with gcc 4.4.5 """ Syslog: """ Mar 26 14:27:01 kam /usr/sbin/kamailio[7929]: ERROR: <script>: Before loose_route, ru is sip:01234567@127.0.0.1:5069;transport=udp Mar 26 14:27:01 kam /usr/sbin/kamailio[7929]: ERROR: <script>: Loose route, ru is sip:1.2.3.4:25060;lr=on;ftag=a9c837bc;nat=yes """ Ngrep of call: """ # U 2012/03/26 14:27:00.089455 127.0.0.1:5069 -> 1.2.3.4:25060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 1.2.3.4:25060;branch=z9hG4bK361e.ba530345.0. Via: SIP/2.0/UDP 192.168.1.29:5060;rport=3081;received=2.3.4.5;branch=z9hG4bK-373632-e2d6ebcc5a1d2a481e4957541b393f9a. Record-Route: <sip:1.2.3.4:25060;lr=on;ftag=a9c837bc;nat=yes>. From: "ines.demo" <sip:ines.demo@mydomain.net>;tag=a9c837bc. To: <sip:01234567@mydomain.net>;tag=BcBSHa56Bp7ge. Call-ID: 65464bffda1b33cfcc9d97c9e8f81cb3@0:0:0:0:0:0:0:0. CSeq: 2 INVITE. Contact: <sip:01234567@127.0.0.1:5069;transport=udp>. User-Agent: WebiB2BUA 1.0.6. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, refer. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 417. Remote-Party-ID: "01234567" <sip:01234567@mydomain.net>;party=calling;privacy=off;screen=no. . v=0. o=root 13076 13076 IN IP4 1.2.3.4. s=session. c=IN IP4 1.2.3.4. t=0 0. m=audio 48548 RTP/AVP 8 0 102 3 101. a=rtpmap:8 PCMA/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:102 iLBC/8000. a=fmtp:102 mode=30. a=rtpmap:3 GSM/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=nortpproxy:yes. m=video 0 RTP/AVP 96 97 98. a=rtpmap:96 /0. a=rtpmap:97 /0. a=rtpmap:98 /0. # U 2012/03/26 14:27:00.089589 1.2.3.4:25060 -> 2.3.4.5:3081 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.1.29:5060;rport=3081;received=2.3.4.5;branch=z9hG4bK-373632-e2d6ebcc5a1d2a481e4957541b393f9a. Record-Route: <sip:1.2.3.4:25060;lr=on;ftag=a9c837bc;nat=yes>. From: "ines.demo" <sip:ines.demo@mydomain.net>;tag=a9c837bc. To: <sip:01234567@mydomain.net>;tag=BcBSHa56Bp7ge. Call-ID: 65464bffda1b33cfcc9d97c9e8f81cb3@0:0:0:0:0:0:0:0. CSeq: 2 INVITE. Contact: <sip:01234567@127.0.0.1:5069;transport=udp>. User-Agent: WebiB2BUA 1.0.6. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY. Supported: timer, precondition, path, replaces. Allow-Events: talk, hold, refer. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 417. Remote-Party-ID: "01234567" <sip:01234567@mydomain.net>;party=calling;privacy=off;screen=no. . v=0. o=root 13076 13076 IN IP4 1.2.3.4. s=session. c=IN IP4 1.2.3.4. t=0 0. m=audio 48548 RTP/AVP 8 0 102 3 101. a=rtpmap:8 PCMA/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:102 iLBC/8000. a=fmtp:102 mode=30. a=rtpmap:3 GSM/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=nortpproxy:yes. m=video 0 RTP/AVP 96 97 98. a=rtpmap:96 /0. a=rtpmap:97 /0. a=rtpmap:98 /0. # U 2012/03/26 14:27:00.160046 2.3.4.5:3081 -> 1.2.3.4:25060 ACK sip:01234567@127.0.0.1:5069;transport=udp SIP/2.0. Call-ID: 65464bffda1b33cfcc9d97c9e8f81cb3@0:0:0:0:0:0:0:0. CSeq: 2 ACK. Via: SIP/2.0/UDP 192.168.1.29:5060;branch=z9hG4bK-373632-6eac5ecf0ba5ab4ce7094ad17870dca3. From: "ines.demo" <sip:ines.demo@mydomain.net>;tag=a9c837bc. To: <sip:01234567@mydomain.net>;tag=BcBSHa56Bp7ge. Max-Forwards: 70. Route: <sip:1.2.3.4:25060;lr=on;ftag=a9c837bc;nat=yes>. Contact: "ines.demo" <sip:ines.demo@192.168.1.29:5060;transport=udp;registering_acc=mydomain_net>. User-Agent: Jitsi1.0-beta1-nightly.build.3820Windows 7. Content-Length: 0. . # U 2012/03/26 14:27:00.160278 1.2.3.4:25060 -> 1.2.3.4:25060 ACK sip:1.2.3.4:25060;lr=on;ftag=a9c837bc;nat=yes SIP/2.0. Call-ID: 65464bffda1b33cfcc9d97c9e8f81cb3@0:0:0:0:0:0:0:0. CSeq: 2 ACK. Via: SIP/2.0/UDP 1.2.3.4:25060;branch=z9hG4bKcydzigwkX. Via: SIP/2.0/UDP 192.168.1.29:5060;rport=3081;received=2.3.4.5;branch=z9hG4bK-373632-6eac5ecf0ba5ab4ce7094ad17870dca3. From: "ines.demo" <sip:ines.demo@mydomain.net>;tag=a9c837bc. To: <sip:01234567@mydomain.net>;tag=BcBSHa56Bp7ge. Max-Forwards: 69. Contact: "ines.demo" <sip:ines.demo@2.3.4.5:3081;transport=udp;registering_acc=mydomain_net>. User-Agent: Jitsi1.0-beta1-nightly.build.3820Windows 7. Content-Length: 0. """

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Kamailio Load Testing
by Uri Shacked 26 Mar '12

26 Mar '12

Hi, I made these kinds of tests before. I have two tips for you to pay attention to: 1. Read about the [routes] on SIPp, It is tricky to satisfy kamailio with SIPp scenarios. 2. Make sure your DB table is well build (use less varchars and more integers). I found out that there are many kamailio modules I can use to load data in to memory and I hardly use the DB (only for ACC). I use MTREE, HTABLE, DIALPLAN, CARRIERROUTE, DROUTING, and so to store the information I need. And I get it with the simple functions of the module. I load around 6 million numbers and other data which takes about 1.5 Gb of the memory. For getting around the real-time changes that I need to deal with (In DB the data changes are immediately made on your service…). I have a RTIMER every 120 sec that check is a reload is needed. If so, it reloads the relevant data (very fast). BR, Uri Hello, On 3/20/12 12:12 PM, Stephen Dodge (Bistech) wrote: >* *>* Hello, *>* *>* I am running Kamailio 3.1.5 with a MySQL backend on CentOS. A *>* connection to MySQL (an off box MySQL cluster) is required for every *>* call, sqlops is used to determine destinations and acc to record CDR *>* information. *>* *>* I am planning to load test our server using SIPp to generate calls, I *>* was wondering if anyone has done something similar and could provide *>* advice on what we should monitor on our Kamailio Server. i.e Server *>* CPU & Memory *>* *>* Thanks in advance for your help. *>* *if you do a lot of direct DB interactions, perhaps latency of the queries will be relevant. You can use benchmark module to see how long it takes to execute part of the config file. I think you don't fetch lot of records from db in config, so memory should be no problem, however you can dump private/shared memory usage via RPC commands within sercmd cli. CPU is a good metric always and easy to watch with systems tools. Cheers, Daniel >* *>* Steve. *

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2 rollover contacts per user
by Krishna Kurapati 26 Mar '12

26 Mar '12

Hi, Is there a way to set up maximum of 2 active roll over contacts per user? Currently when I setup max contacts param as 2, The third one is responding with 503 error for 3rd Register. How can we remove one of the contacts and replace it with the new one. I need it when the device is switching over from Wifi to 3G and back. or Wifi network to Wifi network switching. Thanks Krish Kura

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Kamailio IMS + TLS
by trojak＠st.fri.uniza.sk 26 Mar '12

26 Mar '12

Hello, I am trying to add TLS support to kamailio PCSCF sever. After defining WITH_TLS value and editing tls.cfg file for right path to certificate and key I am still getting following errors: Mar 26 10:23:03 pcscf /usr/sbin/kamailio[12916]: ERROR: pcscf [mod.c:951]: ERR:P-CSCF:mod_init: get_tls_session_hash not found ! Mar 26 10:23:03 pcscf /usr/sbin/kamailio[12916]: ERROR: <core> [sr_module.c:875]: init_mod(): Error while initializing module pcscf (/usr/lib/kamailio/modules/pcscf.so) Mar 26 10:23:03 pcscf kamailio: ERROR: <core> [daemonize.c:269]: Main process exited before writing to pipe Is tls supported yet ? Will by packages in your repository updated to work with kamailio 3.2 ? Or any future updates of kamailio-ims-modules ? Thank you for help Best regards Lubo

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question about cdrtool + freeradius
by Rabary 26 Mar '12

26 Mar '12

Hi all, I don't know if I'm in the right mailing, if not sorry in advance, if yes why I can't insert record in the mysql database for call accounting because it seems like the request is not complete. I put an attachment file, mysql log and /etc/freeradius/sql.conf. Thanks. -- Rabary Teddy Gulfsat Madagascar Service Technique +261-203-085-085 +261-345-600-080 Inutile d'imprimer ce mail

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Absorbing ack's
by Egbert Groot 26 Mar '12

26 Mar '12

Hi all, I'm having an issue with ACK's being proxied. When an INVITE first comes in (new transaction, new dialog), I do a 'www_challenge(...)'. This makes the proxy send a '401 Unauthorized' reply. The client acknowledges this reply with "ACK". This ACK is 'absorbed' by the proxy. When during an established call/dialog the client sends an INVITE to set the call on hold, this is an in dialog INVITE (with to-tag etc). Although authentication for this INVITE isn't very necessary, my script does 'www_challenge' anyway. The proxy sends '401 Unauthorized', the client responds with 'ACK'. This ACK however is not 'absorbed' as it should be, but forwarded/proxied (or at least handed over to the routing script). Is this intended behaviour? If so, how can I recognize this ACK to be able to drop it? I found some related info in this email thread: http://lists.kamailio.org/pipermail/devel/2008-December/017246.html but doesn't discuss this exact issue. Though this isn't a big problem for me (the upstream gateway ignores the ack, and I can disable authentication for re-invite's), I'm curious why the proxy behaves this way. Hopefully someone can enlighten me. regards, Egbert.

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Swetha Raj wants to chat
by Swetha Raj 25 Mar '12

25 Mar '12

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1 0

Kamailio Load Testing
by Stephen Dodge (Bistech) 24 Mar '12

24 Mar '12

Hello, I am running Kamailio 3.1.5 with a MySQL backend on CentOS. A connection to MySQL (an off box MySQL cluster) is required for every call, sqlops is used to determine destinations and acc to record CDR information. I am planning to load test our server using SIPp to generate calls, I was wondering if anyone has done something similar and could provide advice on what we should monitor on our Kamailio Server. i.e Server CPU & Memory Thanks in advance for your help. Steve. ________________________________ Information in this message, including any attachments, is confidential to the person to whom it is addressed and may be legally privileged. If you are not the intended recipient please notify the sender and delete the message from your system. Please note that Bistech Group plc, Bistech plc, Bisnet Limited and the sender do not accept any responsibility for viruses. It is your responsibility to check the e-mail and any attachments for viruses. Calls may be monitored and recorded.

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Re: [SR-Users] Accessing #!define "variables" from within lua
by Alex Balashov 24 Mar '12

24 Mar '12

I am not sure that exporting #defines to third-party language API modules makes much sense just because some user thought it would be neat. The #!... constructs are all intended as preprocessor directives, to make easier management of global constant values in the native Kamailio config environment and to allow easier management of conditionally-enabled chunks of code therein, right? Conceptually, it does not seem to me that they should have any representation outside of that evaluative context. It would be like making preprocessor macro values in C available through the libdl/ELF dynamic shared object interface. It doesn't make any sense. If you really want to export preprocessor macro-dependent values, trouble yourself to use an intermediate variable--a real variable. In Kamailio, this would take the form: #!ifdef MYPROJECT #!define MYPROJECT_IP 1.2.3.4 # Exportable symbol: myproject.ip = "MYPROJECT_IP" descr "..." #!endif Doesn't that make much more sense, in terms of what these directives were really intended for? -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Atlanta, GA 30030 Tel: +1-678-954-0671 Web: http://www.evaristesys.com/, http://www.alexbalashov.com Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: >Hello, > >On 3/23/12 2:00 PM, Asgaroth wrote: >> I'll check this option out, thanks for the tip Alex. >it is a good way to do, $sel(...) are available in Lua, @... format not, >but they are the same, just different access mechanism. > >> >> I guess the other option too, which I have not tried, is to possibly >> pass in the values as lua script parameters. > >Yes, you can do that. You may need to use 'subst' instead of 'define' in >order to be able to replace the token inside another string. > >Exporting defines to Lua could be a good enhancement anyhow, I will >think about and maybe add it in the near future. > >Cheers, >Daniel > >> >> On 23/03/12 12:12, Alex Balashov wrote: >>> Have you considered using selectors/cfg_get variables instead? >>> >>> They are also a common way to store various types of "global" >>> values/constants, with the difference that they can be accessed at >>> run time using PV container functions instead of set at preprocessing. >>> >>> myproject.local_ip = "1.2.3.4" descr "IP address" >>> >>> $sel(cfg_get.my project.local_ip) >>> Or SER-style: @cfg_get.my project.local_ip >>> >>> You can evaluate those in Lua, right? >>> >>> -- >>> Alex Balashov - Principal >>> Evariste Systems LLC >>> 235 E Ponce de Leon Ave >>> Suite 106 >>> Atlanta, GA 30030 >>> Tel: +1-678-954-0671 >>> Web: http://www.evaristesys.com/, http://www.alexbalashov.com >>> >>> Asgaroth<00asgaroth00(a)gmail.com> wrote: >>> >>>> Hi All, >>>> >>>> I am looking at writing a lua function that would really benefit from >>>> accessing "variables" that I would have defined by using the #!define >>>> statement. Is this at all possible? I've tried looking at the >>>> documentation surrounding lua and kamailio, but I cannot see how I >>>> would >>>> access it. I thought I'd ask the list to see if anyone else may have >>>> attempted this. >>>> >>>> for example, I may have >>>> >>>> #!define INTERNAL_ADDRESS 1.2.3.4 >>>> >>>> Which I subsequently use through the the routing script to refer to the >>>> internal address I am listening on. Now I would like to try and access >>>> this "variable" from a lua script. Any pointers/tips/workarounds would >>>> be greatly appreciated. >>>> >>>> Thanks >>>> >>>> _______________________________________________ >>>> 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 >>> _______________________________________________ >>> 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 >>> >> >> >> _______________________________________________ >> 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 >Kamailio Advanced Training, April 23-26, 2012, Berlin, Germany >http://www.asipto.com/index.php/kamailio-advanced-training/ > > >_______________________________________________ >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

2 1

www_authenticate("127.0.0.1", "credentials")
by Marwan Idriss 24 Mar '12

24 Mar '12

Greeting, I want to ask you how the function www_authenticate("127.0.0.1", "credentials") work and what should I put the credentials Table Regards Marwan

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sr-users March 2012