sr-users January 2023

sr-users@lists.kamailio.org

56 participants
66 discussions

Kamailio World 2023 - Call For Presentations

by Daniel-Constantin Mierla

Hello, I would like to announce that Call for Presentations at Kamailio World 2023 is now open. You can submit your proposal or see more details at: - https://www.kamailioworld.com/k2023/call-for-speakers/ The 11th edition of the conference returns to Berlin, Germany, during June 5-7, 2023, as an in-person event. Expect a large range of participants, developers and community members as well as representatives of other popular open source VoIP projects such as Asterisk or FreeSwitch. Looking forward to meeting many of you there! Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - June 5-7, 2023 - www.kamailioworld.com

1 year, 10 months

Performances issue when freeing shared memory in custom module (Kamailio 5.5.2)

by Chaigneau, Nicolas

Hello, I'm encountering performance issues with Kamailio (5.5.2). I'm using a custom Kamailio module that loads routing data in memory, using Kamailio shared memory. This routing data is very large. It can be fully reloaded through a Kamailio RPC command (which is done once each day). When reloading, two sets of data are maintained, one "loading" and another "current" (the latter being used to handle SIP requests). When loading of the new data is finished, it is swapped to "current". Then, memory of the old (now unused) data is freed. I've noticed that when Kamailio is freeing the old data, there is a very significant performance impact on SIP requests. This is surprising to me, because the SIP requests do not use this old data. This is not a CPU issue, idle CPU% is at about 99% at that moment. I'm using the following functions : - shm_mallocxz - shm_free From what I understand, shm_free is actually "qm_shm_free" defined in "src\core\mem\q_malloc.c" (the default shared memory manager being "qm"). I've noticed that there is also a variant shm_free_unsafe ("qm_free"), which does not perform locking. I'm wondering if the lock could be the cause of my performances issues ? (But I'm not sure how this could be possible, because although the SIP requests need to access the shared memory allocated, they do not use directly the functions from the share memory manager.) If the performances issues are causes by the lock, could I use the unsafe version "safely" ? (considering that it is guaranteed that the old data cannot be used by anyone else) Thanks for your help. Regards, Nicolas. This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.

1 year, 10 months

dialog.dlg_filter_mode has ambiguous definition with double negation

by Дилян Палаузов

Hello, https://www.kamailio.org/docs/modules/devel/modules/dialog#dialog.p.dlg_fil… says for dialog.dlg_filter_mode (int) Set dialog fitering mode, which can specify what dialogs are processed. Its value can be a combination (the sum) of following flags: 1 - do not send keepalives and do not execute timeout function if dialog is not local (if the associated bind address is not a local socket). Default value is “0”. As you can see, the definition of 1 is a double negation and there is no definition for 0. What means 0: - do not send keepalives and do not execute timeout function if dialog is local - send keepalives and execute timeout function if dialog is not local - send keepalives and execute timeout function if dialog is local

1 year, 10 months

Does tm.t_relay() create a transaction?

by Дилян Палаузов

Hello, the documentation for tm.t_newtran() says „This is the only way a script can add a new transaction in an atomic way.“ Moreover tm.t_send_reply() “creates the transaction if it does not exist (executing internally t_newtran()) and sends a stateful reply (executing internally t_reply())”. This means that only t_newtrans() and t_send_reply() can create transactions in an atomic way. The documentation of tm.t_relay() does not say whether the function creates a transaction. It also does not say what happens if t_reply() is not called after t_newtrans(). But for tm.t_set_retr() and tm.t_set_retr() is written “If the transaction is already created (e.g called after t_relay() or in an onreply_route) …” This suggests that tm.t_relay() does create atomically or not-atomically a transaction. - What does it mean to create a transaction in a non-atomic way? - Does tm.t_relay() create a transaction? Greetings Dilyan

1 year, 10 months

sslmode in db_postgres

by Centelles Martin, Joel

Hello everybody, I'm working on a kamailio instance as a basic registrar service and I thought to use db_postgres to connect a postgres service only allowing SSl connections. I see that that module doesn't provide any parameters to select sslmode and I was wondering if this module actually supports TLS connections. Does anybody know if this is supported and, if so, how to enable it? or should that support be added into db_postgres module code? Thank you very much in advance. BR, Joel Centelles RTC Lead Engineer | Care Communications R&D joel_centellesmartin(a)baxter.com<mailto:joel_centellesmartin@baxter.com> | baxter.com<https://baxter.com/> [cid:9ee6bcbd-9c30-45ec-bb43-8f439f19f724]<https://baxter.com>

1 year, 10 months

[core/tcp_main.c:617]: _wbufq_add(): (1244714 bytes): write queue full or timeout

by Benoît Panizzon

Hi I'm trying to get dlg.list on a busy system via jsonrpc and xhttp. I already increased: tcp_conn_wq_max=2048 tcp_wq_max=20480 modparam("ctl", "binrpc_max_body_size", 2048) modparam("ctl", "binrpc_struct_max_body_size", 2048) But it looks like the tcp write queue overflows up at shy over 1MB reply no matter what I change. Any ideas what else to toggle? -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________

1 year, 10 months

What are extended flags?

by Дилян Палаузов

Hello, The corex module manages extended flags with functions the setxflag(), isxflagset(), and resetxflag(). tmx.t_flush_xflags() does “flush the extended flags from the current SIP message into the already created transaction. It makes sense only in routing block if the transaction was created via t_newtran() and the extended flags have been altered since. It is not needed to execute this function when using t_relay() (or similar tm relay functions, xflags are synchronized automatically in that case).” The documentation of the tm module does not say anything about extended flags - in particular it does not say that t_relay() synchronizes them. Moreover, while the corex module utilizes the extended flags, the documentation of tm and tmx do not state, that they depend on the corex module. So, what are extended flags? Greetings Дилян

1 year, 10 months

SIP Trunk with multiple phone numbers for account

by Carlos Escalona

Hello all! I have a question. In my system we use a series of VoIP providers to receive external calls to our telephone numbers, for the same provider we have several registered numbers and we need our providers to send that information in some way, so far it does not seem that there is a common way to do it (report the number that was dialed by the person who made the call). From what I understand, SIP does not have a place for that information because there are no things like phone numbers in the specification, my question is, is there a correct place to send such information, or is it entirely up to each provider? (Now, the most common is to have in the RURI and To header, the id of the trunk registered in the uacreg table) I have seen a couple of options that seem to me the most “correct”: send the information in the To header or send in a custom header. I really appreciate any help you can provide. Atenciosamente, [image: photo] <https://www.techer.com.br/> *Carlos Escalona* IT - Development 41 3073-0091 | R 1011 www.techer.com.br -- O conteúdo desta mensagem é confidencial. Se você não se encontra na lista de destinatários ou tenha recebido por engano, não a copie, imprima, envie, ou utilize, de qualquer forma, seu conteúdo. Neste caso, destrua a mensagem e, por favor, notifique o remetente.

1 year, 10 months

Setting socket_workers does not work if using interface name

by Kaufman

At a quick glance it looks like using socket_workers when the listen parameter uses the interface name does not work. For example: children = 4 socket_workers=2 listen=udp:10.10.10.10:5060 Gives two listeners on udp:10.10.10.10:5060 children = 4 socket_workers=2 listen=udp:eth0:5060 Gives four listeners on the socket. Note this is just a quick cursory observation. Is it by design or a design limitation? Kaufman

1 year, 10 months

RTC/Kamailio dinner at Fosdem 2023

by Daniel-Constantin Mierla

Hello, Fosdem 2023 returns to Brussels, Belgium, for a physical event and I'm writing to see if there are many people from the community going to the event and want to organize again the usual RTC/Kamailio dinner on Saturday evening (Feb 4, 2023). Each person should pay for himself, likely to be some price increase comparing with the last one. If there is enough interest, Torrey will help to book a place to accommodate us (first choice could be the same restaurant like in the past, if available). Reply if you want to join the dinner and say how many other people are joining you. Note that RTC Devroom got at this edition a half a day room allocation, on the afternoon of Feb 5, 2023 (Sunday). Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - June 5-7, 2023 - www.kamailioworld.com

1 year, 10 months

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sr-users January 2023