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Today's Topics:

1. Re: Odd Behaviour with Kamailio + TLS (Klaus Darilion) 2. Re: Registrar: Save modified contact / set the q value (Daniel-Constantin Mierla) 3. Re: more type conversion wonders (Daniel-Constantin Mierla)

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Message: 1 Date: Wed, 31 Mar 2010 11:34:45 +0200 From: Klaus Darilion klaus.mailinglists@pernau.at Subject: Re: [Kamailio-Users] Odd Behaviour with Kamailio + TLS To: Hemanshu Patel hemanshu.patel@saicare.com Cc: users@lists.kamailio.org Message-ID: 4BB31735.6030500@pernau.at Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Am 31.03.2010 08:56, schrieb Hemanshu Patel:

Hi all,

I am not sure it is strange behavior or its the desirable one.

i have got two phones registered via TLS to kamailio-1.5.X version.

phone1: connected via ip1:port1 and having contact value ip1:port2 phone2: connected via ip2:port3 and having contact value ip2:port4

when i have just this two phones i can see 2 TCP connected to my

kamailio

from both phones from ip1:port1 and ip2:port3.

now when i call from phone1 to phone2, rather then using the already established and TLS authenticated connection kamailio creates two new connection from kamailio to ip1:port2 and ip2:port4. mean kamailio creates new connection to the contact value stored in location table of openser DB.

Is this the desirable behavior? shouldn't kamailio use the alreay established connection?

This is the standard Kamailio behavior. Thus, you should apply NAT traversal techniques to instruct Kamailio to reuse the established connection.

In short: for each register call fix_nated_register(). For every other request and response call fix_nated_contact().

Thus, if you use the default configuration and apply NAT traversal it should work.

regards klaus

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Message: 2 Date: Wed, 31 Mar 2010 11:37:27 +0200 From: Daniel-Constantin Mierla miconda@gmail.com Subject: Re: [Kamailio-Users] Registrar: Save modified contact / set the q value To: Ovidiu Sas osas@voipembedded.com Cc: NeoTel Lists MailingLists@neotel.at, users@lists.kamailio.org Message-ID: 4BB317D7.4030102@gmail.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 3/30/10 8:29 PM, Ovidiu Sas wrote:

If you need this in 1.5, try to fix the contact header and then forward the REGISTER back to yourself. The loopback REGISTER should have the fixed Contact header and now you can call save(). You will need to tweak a a little bit the config to get everything right into the usrloc (the loopback REGISTER will come from the server IP) and it might work.

it works for no nat scenario, otherwise make sure you will get the looped message on the same socket and you add before looping a header with source ip and port (corresponding nat box pinhole) that you store in received avp.

Cheers, Daniel

Regards, Ovidiu Sas

On Tue, Mar 30, 2010 at 11:36 AM, NeoTel ListsMailingLists@neotel.at

wrote:

...

Hello Everybody!

Is there any way to save(domain, 0x02) the contact after it has been

changed

...

somehow in Kamailio<= 1.5? Do I have to upgrade to 3.0 and use msg_apply_changes() before save()?

Or: Can I set the to be saved q value somehow?

br Walter

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Kamailio (OpenSER) - Users mailing list Users@lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

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Kamailio (OpenSER) - Users mailing list Users@lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla * http://www.asipto.com/ * http://twitter.com/miconda * http://www.linkedin.com/in/danielconstantinmierla

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Message: 3 Date: Wed, 31 Mar 2010 11:41:29 +0200 From: Daniel-Constantin Mierla miconda@gmail.com Subject: Re: [Kamailio-Users] more type conversion wonders To: Juha Heinanen jh@tutpro.com Cc: users@lists.sip-router.org Message-ID: 4BB318C9.1080302@gmail.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 3/31/10 8:40 AM, Juha Heinanen wrote:

i played a bit more with selects and found that statement

if ($sht(auth=>foo::count)> @cfg_get.local.gw_timeout) { xlog("foo"); }

I guess selects have types, while pseudo-variables are kind of type agnostic. Any PV has a string representation of the value, comparison is done as integer if both PVs are integers, otherwise is done as string.

The safe side is to use PV representation of selects when comparing with another PV.

PV and selects is another point for the future coherence.

Cheers, Daniel

produces error

0(9213) :<core> [cfg.y:3379]: parse error in config file

/etc/sip-proxy/sip-proxy.cfg, line 507, column 28-55: bad expression: type mismatch: str instead of int at (507,55)

but the error goes away if i either make explicit conversion

if ($sht(auth=>foo::count)> (int)@cfg_get.local.gw_timeout) { xlog("foo"); }

or use $sel

if ($sht(auth=>foo::count)> $sel(cfg_get.local.gw_timeout)) { xlog("foo"); }

this is thus exactly opposite than in my t_set_fr ordeal where i got conversion error when i used $sel instead of @.

in my opinion, no (int) conversion should be needed in the firs case, because the value of the cfg variable is int.

in summary, writing statements that include selects is very difficult and error prone.

-- juha

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Kamailio (OpenSER) - Users mailing list Users@lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users

-- Daniel-Constantin Mierla * http://www.asipto.com/ * http://twitter.com/miconda * http://www.linkedin.com/in/danielconstantinmierla

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