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37456 discussions

Info: RTC Devroom at FOSDEM 2024
by Daniel-Constantin Mierla 01 Dec '23

01 Dec '23

Hello, another edition of FOSDEM is approaching and it will include again a Real Time Communications devroom. If anyone wants to share their interesting applications or experiences in the field, consider to submit a presentation proposal. The CfP is available at: - https://lists.fosdem.org/pipermail/fosdem/2023q4/003518.html It does not have to be about Kamailio, all RTC topics are welcome, just think to be something useful for developers, as the event is targeting them. Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy and Development Services Kamailio Advanced Training -- asipto.com

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No access to variables within timer route
by dries＠degendt.com 30 Nov '23

30 Nov '23

Hi, I have a timer which is called each 5 seconds: modparam("timer", "declare_timer", "REFRESH_CALLSTATE_TIMER=REFRESH_CALLSTATE_TIMER,5000,slow"); I'm enabling setting the variable "testvar" and enabling the timer when an INVITE is received: if (is_method("INVITE|ACK|UPDATE|CANCEL|BYE")) { $var(testvar) = "blablabla"; timer_enable("REFRESH_CALLSTATE_TIMER", "1"); ... route[REFRESH_CALLSTATE_TIMER] { xlog("L_INFO", "Testvariable: $var(test)\n"); } However, the variable is always 0: INFO: <script>: Testvariable: 0 I've also tried printing pseudovariables like $ci, $du but nothinh seems accessible. Is there a workaround for this? Best regards, Dries

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kamailio t_on_failure tcp timeout
by Julien Chavanton 29 Nov '23

29 Nov '23

Hi, I would like to catch TCP timeouts when I use a socket that was not closed. In this example I am sending SIP MESSAGE ... t_on_reply("ON_REPLY_MESSAGE"); t_on_failure("FAILURE_MESSAGE"); if (!t_relay()) sl_reply_error();

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Evapi Async - suspend transaction for a limited time
by Ilie Soltanici 29 Nov '23

29 Nov '23

Hello, I'm trying to use the evapi_async_relay function from the evapi module, however,I don't want the transaction to be suspended for more than 1 second. For instance, if there's no response from the external application within this time frame, I want the script to continue and remove that transaction from memory. One potential approach I am considering is to add suspended transactions to a hash table with a timestamp value. Then, using rtimer module, I could periodically parse this table every second and process the results, but I'm not sure how efficient is that. Maybe you know other alternative, more efficient solutions (from a performance point of view) that could achieve the same goal? Any insights or recommendations would be greatly appreciated. Thank you.

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5.6.4 debian htable dbmode=1 not writing at shutdown
by Bernd Krueger-Knauber 29 Nov '23

29 Nov '23

Hi, I have still the problem that my htables are not written into a sqlite db when I shutdown kamailio. Manual writing via: kamcmd htable.store ... is working. As I can see in the logs with highest loglevel, the function destroy() is never called. ht_db_url.len is > 0 ht_db_init_con() should work, else nothing would work with the db. But I can not see the debug messages from ht_db_open_con() Any ideas? Best regards, Bernd

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Incompatibility of the DMQ htable protocol with older Kamailio versions
by Denys Pozniak 29 Nov '23

29 Nov '23

Hello! I noticed that there are differences in the DMQ htable replication protocol for the old version of Kamailio 5.2 and the new 5.7. For example, the new version uses action 2 when updating values and action 4 to remove. The old Kamailio version uses the values 1 and 3 respectively. Well, as a result, the htable data is not shared between such nodes, plus there are errors in the syslog of the old version: ERROR: htable [ht_dmq.c:328]: ht_dmq_handle_msg(): failed to replay action It would probably be worth introducing some kind of DMQ htable protocol versioning to maintain compatibility? And is there any option to make them work together (I wouldn’t really want to change the action number in sip/sdp/json on the fly)? Kamialio 5.2 {"action":1,"htname":"shared","cname":"user","type":2,"strval":"uri","mode":1} {"action":3,"htname":"shared","cname":"user","mode":0} Kamailio 5.7 {"action":2,"htname":"shared","cname":"user","type":2,"strval":"uri","mode":1} {"action":4,"htname":"shared","cname":"user","mode":0} -- BR, Denys Pozniak

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tps_storage_fill_contact(): no r-uri user
by Denys Pozniak 28 Nov '23

28 Nov '23

Hello! My topology is like this: PBX -> Kamailio Topos -> User When calling the user, PBX does not add the user part in the Contact URI, something like: Contact: <sip:10.10.10.10:5080;transport=udp> When the customer sends a reinvite, the topos turns off for this transaction and the sip partially breaks down with error: topos [tps_storage.c:319]: tps_storage_fill_contact(): no r-uri user topos [tps_storage.c:615]: tps_storage_record(): failed to store As far as I understand, the RFC allows the absence of the user part in the URI and this occurs quite often. I can provide the pcap file and debug log in a private message if this helps identify the essence of the problem. # kamailio -v version: kamailio 5.7.1 (x86_64/linux) 1cf389-dirty -- BR, Denys Pozniak

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Kamailio ver 5.7.3 - source installation warnings
by Muhammad Danish Moosa 28 Nov '23

28 Nov '23

Hi, I am planning to upgrade Kamailio to version 5.7.3 to manage some memory leaks issues. I am installing from source and came across these warnings, just wanted to be sure if they are safe to be ignored. cr_func.c: In function ‘set_next_domain_on_rule’: cr_func.c:160:2: warning: missing braces around initializer [-Wmissing-braces] pv_value_t val = {0}; ^ cr_func.c:160:2: warning: (near initialization for ‘val.rs’) [-Wmissing-braces] cr_func.c: In function ‘actually_rewrite’: cr_func.c:348:2: warning: missing braces around initializer [-Wmissing-braces] pv_value_t val = {0}; ^ cr_func.c:348:2: warning: (near initialization for ‘val.rs’) [-Wmissing-braces] cr_func.c: In function ‘ki_cr_load_user_carrier_helper’: cr_func.c:782:2: warning: missing braces around initializer [-Wmissing-braces] pv_value_t val = {0}; ^ -- LD (gcc) [M p_usrloc.so] p_usrloc.so CC (gcc) [M evrexec.so] evrexec_mod.o evrexec_mod.c:64:1: warning: missing braces around initializer [-Wmissing-braces] static evrexec_info_t _evrexec_info = {0}; ^ evrexec_mod.c:64:1: warning: (near initialization for ‘_evrexec_info.data’) [-Wmissing-braces] LD (gcc) [M evrexec.so] evrexec.so CC (gcc) [M avp.so] avp.o LD (gcc) [M avp.so] avp.so CC (gcc) [M acc_diameter.so] diam_message.o CC (gcc) [M acc_diameter.so] acc_diameter_mod.o CC (gcc) [M acc_diameter.so] diam_avp.o CC (gcc) [M acc_diameter.so] diam_tcp.o LD (gcc) [M acc_diameter.so] acc_diameter.so CC (gcc) [M dmq.so] bind_dmq.o CC (gcc) [M dmq.so] message.o CC (gcc) [M dmq.so] dmq_funcs.o dmq_funcs.c: In function ‘ki_dmq_send_message’: dmq_funcs.c:304:3: warning: missing braces around initializer [-Wmissing-braces] dmq_peer_t new_peer = {0}; ^ dmq_funcs.c:304:3: warning: (near initialization for ‘new_peer.peer_id’) [-Wmissing-braces] dmq_funcs.c: In function ‘ki_dmq_bcast_message’: dmq_funcs.c:374:3: warning: missing braces around initializer [-Wmissing-braces] dmq_peer_t new_peer = {0}; ^ dmq_funcs.c:374:3: warning: (near initialization for ‘new_peer.peer_id’) [-Wmissing-braces] CC (gcc) [M dmq.so] notification_peer.o CC (gcc) [M dmq.so] dmq.o dmq.c:61:1: warning: missing braces around initializer [-Wmissing-braces] sip_uri_t dmq_server_uri = {0}; ^ dmq.c:61:1: warning: (near initialization for ‘dmq_server_uri.user’) [-Wmissing-braces] dmq.c:67:1: warning: missing braces around initializer [-Wmissing-braces] static sip_uri_t dmq_notification_uri = {0}; ^ dmq.c:67:1: warning: (near initialization for ‘dmq_notification_uri.user’) [-Wmissing-braces] Muhammad Danish Moosa " The core of mans' spirit comes from new experiences. "___ Christopher McCandless

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Info: Issue and PR automatic management
by Daniel-Constantin Mierla 27 Nov '23

27 Nov '23

Hello, during the Kamailio Development Meeting that took place in Dusseldorf earlier this month, one topic was related to administrative tasks related to project development and management, how to simplify/automatize such tasks. To reduce the work load on volunteering contributors, GitHub Actions were already used for various tasks related to project development and management (e.g., automatic builds on commits and pull requests to detect compile errors or code formatting mistakes). In Dusseldorf another task was configured to be managed with GitHub Actions, respectively the check of open issues and pull requests to evaluate the interest of submitters, developers and community users to pursue them. If there is no activity on an issue (potential bug or feature request) or a pull request, after 6 weeks it is marked with the label `stale`. After two more weeks of no activity, the issue or the pull request is marked with the label `expired` and closed. Note that any comment postpones the expire timeline, being considered that there is interest in pursuing the issue or the pull request. Requests for features were already treated in this way: if nobody commits to implement it, it can be closed after one month, but it needed manual work and many were still kept open. Potential bug reports that become very old are hard to tackle if the source code changes or new major releases are out, they might even not be valid anymore. Anyhow, this automatic operations can be reverted if there is still interest in pursuing the specific issues or pull requests. A registered developer can remove labels and reopen a closed issue or pull request. The non-registered-developer contributors have to make a comment that includes the token `/notstale` to remove the label `stale` or includes the token `/notexpired` to reopen a closed item. This new kind of automatic task management might add a little inconvenience because one has to restate the interest from time to time for those items that could not be addressed. However, considering that Kamailio is an open source collaborative project, in order to be fair for those that volunteer to spend time and resources for development of Kamailio, also the users/submitters have to stay engaged, not just report and forget about. The process to automatize tasks related to Kamailio development and administration is work in progress. Everything can be adjusted based on feedback (e.g., time lines), feel free to suggest improvements or new solutions to make things easier for everyone within the project ecosystem. Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy and Development Services Kamailio Advanced Training -- asipto.com

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How to remove record-route and via from a forwarded call?
by Benoit Panizzon 27 Nov '23

27 Nov '23

Hi List Two Kamailio Nodes situation. Node A: Routing Instance. Node B: Registrar Instance. An invite is sent from Node A to B. Customer registered on B is 'busy' as example. B initiates Call Forwarding by adding a Diversion Header and sending the Invite back to A with a new R-URI towards the CFB destination. The Invite sent from B to A still has Node B in it's Record-Route. So all subsequent SIP messages pass via B, which is not needed and cause issue with rtpengine running on B. I attempted to remove_record_route(); when sending the call back to A, but this causes: parse_headers(): bad header field [;lr;ftag=3910078620-883101371> It looks like only the beginning of the RR header is removed leaving back a competely broken line. What is the propper was to remove a node from RR and Via routing? Mit freundlichen Grüssen -Benoît Panizzon- -- 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 ______________________________________________________

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