sr-users June 2009

sr-users@lists.kamailio.org

80 participants
112 discussions

[Serusers] Server dimensioning
by inge 25 Jun '09

25 Jun '09

Hi all, I wonder about the "child" parameter in ser.cfg. What's the average processing capacity (number of requets/process) ? Currently, the parameter is set to 4, the default value. What's the risk of the increase ? SER runs on RedHat AS4 with Intel Xeon Quad 3.0 Ghz. Thanks for your support.

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[Kamailio-Users] new feature: PV class $T_inv(pv)
by Daniel-Constantin Mierla 25 Jun '09

25 Jun '09

Hello, by loading the tmx module, one can get access to INVITE attributes while processing the CANCEL, see more at: http://sip-router.org/wiki/cookbooks/pseudo-variables/devel#t_inv_pv Cheers, Daniel -- Daniel-Constantin Mierla http://www.asipto.com/

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[Kamailio-Users] LRN routing - 302 sip code
by Mik Cheez 24 Jun '09

24 Jun '09

One of our carriers gives us an option to check LRN routing via SIP before we attempt to send out a call. Our request will go out as a regular invite, then we'll get a 302 return code back, with the result contained in the header. My question is, how exactly is the flow of this kind of call supposed to work? I thought I could do a regular failover, but that doesn't work. Does anyone have a suggestion? Mik

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[Kamailio-Users] script var or avp in ds_select_dst (dispatcher)?
by Robert McGilvray 24 Jun '09

24 Jun '09

Can someone please confirm that I cannot use a script var or avp in the set field when calling ds_select_dst from the dispatcher module? I'm trying to use dialplan to return a gateway group via attr, then call ds_select_dst with that but get the following error in my logs. If this is my problem are there any workarounds? The goal is to call ds_select_dst with a dynamic value. Example - ds_select_dst("$var(dpattr)", "0") Jun 24 14:50:49 [1125] ERROR:core:fixup_get_ivalue: no valid PV value found (error in scripts) Jun 24 14:50:49 [1125] ERROR:dispatcher:w_ds_select_dst: no dst set value If I hardcode the value which in this case is 30 it works as expected. I've verified that the correct value is in $var(dpattr) with an xlog right before the call to ds_select_dst. if ($ruri.user =~ "[0-9]{4}") { xlog("L_NOTICE", "KAM_HOST: ($ci) $pr $mi route[$rm][0] $fu -> $ru - Internal 4 digit call\n"); if (dp_translate("2", "$ruri.user/$var(dpuser)")) { xlog("L_NOTICE", "KAM_HOST: ($ci) -> DP result='$var(dpuser)', attr='$var(dpattr)'\n"); setflag(FLAG_DIALPLAN); } else { xlog("L_NOTICE", "KAM_HOST: ($ci) -> No matching dialplan for $ru\n"); } } some other if statements here with other pattern matches... if (isflagset(FLAG_DIALPLAN)) { xlog("L_NOTICE", "KAM_HOST: ($ci) -> DP Attr is $var(dpattr)\n"); if (ds_select_dst("$var(dpattr)", "0")) { xlog("L_NOTICE", "KAM_HOST: ($ci) $pr $mi route[$rm][0] $fu -> DST='$avp(s:dispatcher-dst)', \ GRP='$avp(s:dispatcher-grp)', CNT='$avp(s:dispatcher-cnt)'\n"); } else { xlog("L_NOTICE", "KAM_HOST: ($ci) $pr $mi route[$rm][0] $fu -> $ru - No dst gateways found\n"); sl_send_reply("404", "No destination gateways found\n"); } } Thanks -------------------------------------------------------------------------- This email with all information contained herein or attached hereto may contain confidential and/or privileged information intended for the addressee(s) only. If you have received this email in error, please contact the sender and immediately delete this email in its entirety and any attachments thereto.

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[Kamailio-Users] SIP forking proxy
by Zeljko Lovrincevic 24 Jun '09

24 Jun '09

Hi, I need SIP forking proxy, and I would like to use OpenSER for that purpose. I have few questions if you could help. I am interesting for behavior when 200 OK INVITE is received for each forked dialog. Should only first 200 OK INVITE be passed to UA (the other will be terminated by proxy), or 200 OK for all forked dialogs should be passed to UA? Is it possibly to define some static configuration how to fork a dialogs or we always need REGISTER? Thanks in advance. BR/Zeljko

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Re: [Kamailio-Users] [sr-dev] new version of lcr module
by Daniel-Constantin Mierla 24 Jun '09

24 Jun '09

Hi Juha, please add a short note in the wiki: https://sip-router.org/wiki/features/new-in-devel Makes easier to build new release notes and spread details about what is new in development version. Thanks, Daniel PS. I cc-ed users mailing list as this was a new feature announcement. On 06/22/2009 04:55 PM, Juha Heinanen wrote: > i just pushed a new version of lcr module, which resulted from > discussions on the mailing lists. > > most important new feature is support for any number of independent lcr > instances, which improves virtualization of sr. for example, different > domains can now manage their own least cost routing to their own gws. > > i also replaced aliveness check with new defunct_gw() function, which > script writer can use to defunct an unresponsive or busy gw for a > desired period of time. > > in order to keep lcr module manageable, i removed gw group related > functions (which were not efficient anyway). if someone is using them, i > hope that they can be replaced by lcr instances. > > -- juha > > _______________________________________________ > sr-dev mailing list > sr-dev(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev > > -- Daniel-Constantin Mierla http://www.asipto.com/

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[Kamailio-Users] Failure at startup
by Francisco Javier Lizarán Vilches 24 Jun '09

24 Jun '09

Hi all: Running Openser v1.2.3-notls. It has been suffering failures at startup since some weeks ago and it seems to be related with database operation. Nothing has changed in config. The only remarkable change in the system is a slight increase in database registers at subscribers, location and lcr tables. Log excerpt from openser startup: Jun 19 15:23:32 openser[2196]: INFO: statistics manager successfully initialized Jun 19 15:23:32 openser[2196]: StateLess module - initializing Jun 19 15:23:32 openser[2196]: TM - initializing... Jun 19 15:23:32 openser[2196]: Maxfwd module- initializing Jun 19 15:23:32 openser[2196]: INFO:ul_init_locks: locks array size 512 Jun 19 15:23:32 openser[2196]: AUTH module - initializing Jun 19 15:23:32 openser[2196]: AUTH_DB module - initializing Jun 19 15:23:32 openser[2196]: TextOPS - initializing Jun 19 15:23:32 openser[2196]: AVPops - initializing Jun 19 15:23:32 openser[2196]: permissions - initializing Jun 19 15:23:32 openser[2196]: WARNING: File not found: /etc/openser/permissions.allow Jun 19 15:23:32 openser[2196]: Default allow file (/etc/openser/permissions.allow) not found => empty rule set Jun 19 15:23:32 openser[2196]: WARNING: File not found: /etc/openser/permissions.deny Jun 19 15:23:32 openser[2196]: Default deny file (/etc/openser/permissions.deny) not found => empty rule set Jun 19 15:23:32 openser[2196]: ACC - initializing Jun 19 15:23:32 openser[2196]: Dialog module - initializing Jun 19 15:23:32 openser[2196]: INFO: SNMPStats: Starting up the SNMPStats Module Jun 19 15:23:32 openser[2196]: UAC - initializing Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type (32) instead of <Refer-To> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type (7) instead of <Contact> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Referred-By> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Replaces> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Forwarder> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Referred-by> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <RG> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Origin> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Referred-By> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Replaces> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type name <Forwarder> Jun 19 15:23:32 openser[2196]: xl_fill_extra_spec: found extra item [DLG_status] Jun 19 15:23:32 openser[2196]: xl_fill_extra_spec: found extra item [T_reply_code] Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type (4) instead of <From> Jun 19 15:23:32 openser[2196]: INFO:textops:hname_fixup: using hdr type (3) instead of <To> Jun 19 15:23:32 openser[2196]: xl_fill_extra_spec: found extra item [T_reply_code] Jun 19 15:23:32 openser[2196]: xl_fill_extra_spec: found extra item [T_reply_code] Jun 19 15:23:32 openser[2196]: xl_fill_extra_spec: found extra item [T_branch_idx] Jun 19 15:23:32 openser[2196]: INFO: udp_init: SO_RCVBUF is initially 109568 Jun 19 15:23:32 openser[2196]: INFO: udp_init: SO_RCVBUF is finally 262142 ...Some registers, invites, etc logs... Jun 19 15:23:34 openser[2204]: new_connection: Can't connect to MySQL server on 'bbdd.bariksip.es' (4) Jun 19 15:23:34 openser[2201]: new_connection: Can't connect to MySQL server on 'bbdd.bariksip.es' (4) Jun 19 15:23:34 openser[2201]: ERROR:ul:child_init(5): Error while connecting database Jun 19 15:23:34 openser[2204]: ERROR:ul:child_init(-1): Error while connecting database Jun 19 15:23:34 openser[2201]: ERROR:init_mod_child: Error while initializing module usrloc, rank 5 Jun 19 15:23:34 openser[2204]: ERROR:init_mod_child: Error while initializing module usrloc, rank -1 Jun 19 15:23:34 openser[2201]: init_child failed Jun 19 15:23:34 openser[2204]: timer: init_child failed Jun 19 15:23:34 openser[2203]: INFO: signal 15 received Jun 19 15:23:34 openser[2201]: INFO: SNMPStats: The SNMPStats module got the kill signal Jun 19 15:23:34 openser[2201]: Shutting down the AgentX Sub-Agent! Jun 19 15:23:34 openser[2201]: INFO:mi_fifo:mi_destroy: process hasn't been created -> nothing to kill Jun 19 15:23:34 openser[2202]: INFO: signal 15 received Jun 19 15:23:34 openser[2200]: INFO: signal 15 received Jun 19 15:23:34 openser[2199]: INFO: signal 15 received Jun 19 15:23:34 openser[2198]: INFO: signal 15 received Jun 19 15:23:34 openser[2197]: INFO: signal 15 received Jun 19 15:23:34 openser[2204]: INFO: SNMPStats: The SNMPStats module got the kill signal Jun 19 15:23:34 openser[2204]: Shutting down the AgentX Sub-Agent! Jun 19 15:23:34 openser[2204]: INFO:mi_fifo:mi_destroy: process hasn't been created -> nothing to kill Jun 19 15:23:34 openser[2196]: new_connection: Can't connect to MySQL server on 'bbdd.bariksip.es' (4) Jun 19 15:23:34 openser[2196]: ERROR:ul:child_init(0): Error while connecting database Jun 19 15:23:34 openser[2196]: ERROR:init_mod_child: Error while initializing module usrloc, rank 0 Jun 19 15:23:34 openser[2196]: main: error in init_child Jun 19 15:23:34 openser[2196]: INFO: SNMPStats: The SNMPStats module got the kill signal Jun 19 15:23:34 openser[2196]: Shutting down the AgentX Sub-Agent! Jun 19 15:23:34 openser[2196]: INFO:mi_fifo:mi_destroy: process hasn't been created -> nothing to kill After multiple attempts the result is the same. This is the list of modules that use db: acc|auth_db|permissions|uri_db|usrloc|avpops|lcr|avpops|domain|speeddial|alias_db Looking at the traces, when openser places the request packet carrying this query "select prefix,from_uri,grp_id,priority from lcr", mysql server begins to perform retransmissions of the requested data; although openser eventually sends back the ack. Later request's responses from mysql server needs also retransmit until openser fails. If I change, for example, usrloc's dbmode to 0 (disables db use), the module that fails this time is auth_db. The mySql server is located in the same LAN that Openser(0.112s rtt). I have realized that Openser can be started without any problem when: -Log level is raised to 4(!). or -Another mysql server in a remote location is used (10s rtt). Has anybody experienced an issue like this? Thanks: Francisco Javier Lizarán Vilches ---------------------------------------------- BARIK (Grupo Ormazabal) Departamento Técnico Tel.: +34 917 479 900 www.barik.es <http://www.barik.es/> ----------------------------------------------

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[Serusers] LCR module
by Ron 24 Jun '09

24 Jun '09

Hi All, Sorry about this post but i just can't figure out the logic: i'm using lcr to send calls to pstn, when my user dials a number that begins with 00 i re-route it to my termination providers. e.g.: if ((uri=~"^(sip:)?00[0-9]*@([a-z]+\.)?mydomain.com") || (uri=~"^(sip:)?00[0-9]*@22\.22\.22\.22")) { strip(2); prefix("1234"); if(!load_gws()){ sl_send_reply("500", "Internal server error, unable to load gateways"); break; } } fortunately i have the same prefix on my termination providers. so on my lcr table i have defined all country codes to have the 1234 prefix, e.g 12341 for US , 123465 for singapore. etc. now i have a new provider, but prefix is different, how can i detect on lcr when all calls fail. i change prefix. i hope my question is clear sorry. regards, ron

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[Serusers] LCR module
by Ron 24 Jun '09

24 Jun '09

1 0

[Kamailio-Users] [REQ, $] db_rest (or db_http) module for database access
by Konstantin Cherkasov 23 Jun '09

23 Jun '09

Hello! Our company seeking for programmer who can create module for flexible database access. I call it db_rest (or db_http). This module must provide internal database API for other modules like db_auth. For access to external data it must use HTTPS-server and use REST-style data access (http://en.wikipedia.org/wiki/Representational_State_Transfer). Instead of making query like "SELECT f1,f2,f3 FROM tableA WHERE f4 = 'somevalue'" it must call HTTPS-server like this: GET http://hostname/database/tableA&c=f1,f2,f3&k=f4&op=eq&v=somevalue Server must return delimiter-separated data. Similarly (using POST) it must implement support for insert, update and so on. Of course we would like to see this module inside the main project repository. If you are interested please contact me for details (requirements, $$). -- Konstantin

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sr-users June 2009