Hello Henning, I looked at htable and usrloc modules, I just got some ideas from them. It seems good. I could implement fork_sync_timer in my module and do some specific process in interval times. That's greats. Thank you again. With Best Regards. Mojtaba

On Sun, Jan 20, 2019 at 11:24 PM Mojtaba mespio@gmail.com wrote:

Sure. I just thought i would keep the list. I will look around it to give some ideas. Thanks again On Sun, 20 Jan 2019, 23:15 Henning Westerholt, hw@kamailio.org wrote:

...

Am Sonntag, 20. Januar 2019, 17:57:33 CET schrieb Mojtaba:

...

Hello Henning,

Thank you for replying.Sure. It would be useful. Thanks Using htable module is good idea, But if i want not to use htable module and save part of SIP Messagre in memory , How do i impelement

auto-expire

...

after afew time? With regards.

Hello Mojtaba,

please keep the list in CC.

The htable module support this memory storage and also auto-expiration out of the box. :-)

You can find (a bit complicated) example in the usrloc module. A starting point for the expiration logic can be the delete_ucontact(..) function there. You need to store the SIP message data in a proper data structure like a list or a hash table.

Best regards,

Henning

...

On Sun, 20 Jan 2019, 18:47 Henning Westerholt, hw@kamailio.org wrote:

...

Am Samstag, 19. Januar 2019, 10:43:09 CET schrieb Mojtaba:

...

Sorry for my mistake in subject! "Give me suggestions for module implementation", anyway, Give me suggestions for duplication detection algorithm?

Hello Mojtaba,

just to give you an idea: you can access and store parts of the

message in

...

...

memory with e.g. the htable module. Then you can compare it during the route block with the new incoming message and reject it.

I found this old discussion thread about a similar topic: https://lists.kamailio.org/pipermail/users/2009-February/021906.html

You can of course also implement this in a module, but in this case it would not be necessary.

Maybe this is helpful for your as well.

-- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://skalatan.de/services Kamailio security assessment - https://skalatan.de/de/assessment