sr-users August 2017

sr-users@lists.kamailio.org

89 participants
144 discussions

Kamailio example configuration: auth section incomplete?

by George Diamantopoulos

Hello again, Still getting familiar with kamailio, and I'm wondering about the AUTH route in the example configuration file. Here's a reducted-simplified version of it for reference (from git master, without IP AUTH and comments): ______________________________________________ route[AUTH] { if (is_method("REGISTER") || from_uri==myself) { if (!auth_check("$fd", "subscriber", "1")) { auth_challenge("$fd", "0"); exit; } if(!is_method("REGISTER|PUBLISH")) consume_credentials(); } if (from_uri!=myself && uri!=myself) { sl_send_reply("403","Not relaying"); exit; } return; } ______________________________________________ So the way I see it, what happens is the following: * All REGISTERs will be challenged * All SIP messages with kamailio's aliases in the "From" header URI will be challenged * All SIP messages with no reference to kamailio's aliases in both R-URI and "From" header URI will be dropped The question is, what about messages that do not enter either of the two conditionals? For example, I expect the following to be very common: * Method: INVITE * R-URI: myself * From: username@"UAC's local IP address" (not myself) * To: myself So in the example above, the auth route will return without either having challenged or dropped the request, am I correct? This is because: * For the challenge: Method is not REGISTER and "From URI" is not one of kamailio host's aliases (cumulatively) * For dropping after sending 403: "From URI" is not one of kamailio's host's aliases (which calculates to true) but R-URI is "myself" So I'm guessing we're expecting the challenge to come from elsewhere in cases like the example above? Or is there something else I'm missing here? Thanks! BR, George

7 years, 4 months

Issue with ims_isc module? (distinct PSI)

by Valentin Christoph

Hi, Can anyone comment on issue #1168? https://github.com/kamailio/kamailio/issues/1168 Thanks, Christoph The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof, and is kindly asked to notify the sender and delete the e-mail immediately.

7 years, 4 months

is_first_hop

by Nicolas Breuer

Hello, I tried to understand the concept of first hop in "replies" In the documentation ; For incoming SIP replies, it means that top Record-Route URI is 'myself' and source address is not matching it (to avoid detecting in case of local loops). Note that it does not detect spirals, which can have the condition for replies true also in the case of additional SIP reply receival. Here's an incoming reply received on 217.112.180.10. Via: SIP/2.0/UDP 217.112.180.10;branch=z9hG4bK723f.db3510ce15ac9bb6467e115ecc2fe2a7.0. Via: SIP/2.0/UDP 217.112.180.9;rport=5060;branch=z9hG4bK723f.741041093fec570744afcf44f2194581.0. Via: SIP/2.0/UDP 217.110.38.229:5060;rport=5060;branch=z9hG4bK0eB7070489d338025ed. Record-Route: <sip:217.112.180.9:5060;lr=on;ftag=7B84E4CBh3;did=4cf.c94;nat=yes>. Record-Route: <sip:217.112.180.10:5060;lr=on;ftag=7B84E4CBh3;did=4cf.448>. The Record-Route is 217.112.180.9 but the first proxy is 217.112.180.10.

7 years, 4 months

SIP Proxy/Redirect

by Aaron Tecey

Hi All, Hoping for some help as a beginner. I need to configure a sip proxy server so that it redirects all processes to a freeswitch server on another network. SIP UACs are on an isolated network and have only a connection to the sip proxy. All I need the proxy to do is pass on all requests to the the freeswitch UAS on a different network, as it will handle registering etc. Is there a basic setup for this type of behaviour? Many thanks, Aaron

7 years, 4 months

error 401 and 500 (7/SL)

by jurek

Hello i have problem with my kamailio sip server on rpi 3b i configured tls with lets encrypt when i start kamailio with #!define WITH_AUTH its always return 401 error but without tls working . if i start kamailio without #!define WITH_AUTH its return [500] reason [I'm terribly sorry, server error occurred (7/SL)] for proxy [<sip:jurek.tk:5061;transport=tls>] How to repair it ?

7 years, 4 months

kemi lua routing block as route in standart cfg

by Yuriy Gorlichenko

Hello. I found how to implement lua routimg logic with cfgengine but didn't found how to include cimple route in lua at the cfg file Presume i have routing logic and want to include my_super_custom_route written with Kemo on lua. How i need to set up my config for it work with both engines?

7 years, 4 months

Reverse DNS lookups inside Kamailio

by Sebastian Damm

Hi, for a project I need the option to do a reverse lookup of an IP address and use the value from it in a variable. As far as I could see the ipops module only allows SRV and A record lookups. Is there anything I missed? And if there is nothing inside Kamailio, how could a good approach look like? Thanks in advance, Sebastian

7 years, 4 months

T.38 fax, rtpproxy, re-invite

by Yu Boot

Hello. I'm using almost default kamailio.cfg with nathelper, rtpproxy, PSTN dialing and other default features. I have following scheme: FXS gateway -> (NAT) -> Kamailio -> FreeSwitch Voice calls work perfectly, no one-direction sound and so on. But with fax machine there was a problem. In wireshark I saw UDPTL from FS to Kamailio IP, and no UDPTL at all to FXS gw. I've guessed that something's wrong with a re-INVITE request processing in Kamailio. I've added this to WITHINDLG route: else if ( is_method("INVITE") ) { record_route(); } And problem was magically solved, T.38 now works OK. Is this OK solution or this may break something elsewhere? Thanks.

7 years, 4 months

Kamailio CDR "best practices"

by Yu Boot

How to make Kamailio write "normal" CDRs? acc cdr module writes start time and end time in unixtime format, that is very uncomfortable. Fnd stcond question - how to make Kamailio to write CDR in ordinary text file?

7 years, 4 months

Usleep on Reply

by Nicolas Breuer

Hello All, I'm trying to code something on the on_reply part to do something if I receive a 183 ( Session in progress ) , followed immediately by a "180" I tried to sleep 1 second the 183 and recheck if I received before a 180 but seems the "sleep" function sleeps everything ( also the received 180 ) Is a developper can confirm that ? The goal is to detect if a 180 follow the 183.

7 years, 4 months

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sr-users August 2017