sr-users June 2019

sr-users@lists.kamailio.org

63 participants
93 discussions

403 Forbidden
by Pejic, Miroslav 14 Jun '19

14 Jun '19

Hi :) I'm trying to save a failed call in the kamailio_router.acc_cdrs database after sending the 403 Forbidden by router, using the module acc, if is it possible? https://www.kamailio.org/docs/modules/5.2.x/modules/acc.html Something like this: route[IS_CALLER_BLACKLISTED] { python_exec("check_caller_blacklisted"); if ($var(callerBlacklisted) == 1){ t_send_reply("403", "Forbidden"); IT’S POSSIBLE HERE SAVE A CALL ON KAMAILIO_ROUTER.ACC_CDRS? exit; } Thanks in advance! Miro

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Re: [SR-Users] 403 Forbidden
by Federico Cabiddu 14 Jun '19

14 Jun '19

I understand, to get the cdr you should have created the dialog before replying. Cheers, Federico On Fri, 14 Jun 2019, 17:05 Pejic, Miroslav, <miroslav.pejic(a)cloud.timenet.it> wrote: > [image: image.png] > > The call doesn't even begin, I immediately block it. :) > > Il giorno ven 14 giu 2019 alle ore 16:59 Pejic, Miroslav < > miroslav.pejic(a)cloud.timenet.it> ha scritto: > >> Hi Federico, >> >> i tryied also with `modparam("acc", "cdr_on_failed", 1)` >> but in my case the call is not saved at all on `acc_cdrs`, >> with the second method i mentioned works :) >> Thanks >> Miro >> >> Il giorno ven 14 giu 2019 alle ore 16:14 Federico Cabiddu < >> federico.cabiddu(a)gmail.com> ha scritto: >> >>> Hi, >>> dialog CDR for failed calls can be generated enabling >>> >>> http://www.kamailio.org/docs/modules/devel/modules/acc.html#acc.p.cdr_on_fa… >>> >>> It has been some time since I last tested it, but it still should work :) >>> >>> Cheers, >>> >>> Federico >>> >>> On Fri, Jun 14, 2019 at 3:25 PM Daniel-Constantin Mierla < >>> miconda(a)gmail.com> wrote: >>> >>>> Hello, >>>> >>>> it should be ok also with 2) if it gives what you want. Kamailio is >>>> just writing to acc_cdrs, if you have extra columns, it should not be >>>> affected. >>>> >>>> Cheers, >>>> Daniel >>>> On 14.06.19 14:16, Pejic, Miroslav wrote: >>>> >>>> Hi Daniel :) >>>> >>>> i tryied 2 methods to save it >>>> >>>> 1) i created a new table on kamailio_router called `acc` >>>> >>>> from `utils/kamctl/mysql/acc-create.sql` >>>> >>>> ``` >>>> CREATE TABLE `acc` ( >>>> `id` INT(10) UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL, >>>> `method` VARCHAR(16) DEFAULT '' NOT NULL, >>>> `from_tag` VARCHAR(128) DEFAULT '' NOT NULL, >>>> `to_tag` VARCHAR(128) DEFAULT '' NOT NULL, >>>> `callid` VARCHAR(255) DEFAULT '' NOT NULL, >>>> `sip_code` VARCHAR(3) DEFAULT '' NOT NULL, >>>> `sip_reason` VARCHAR(128) DEFAULT '' NOT NULL, >>>> `time` DATETIME NOT NULL >>>> ); >>>> CREATE INDEX callid_idx ON acc (`callid`); >>>> ``` >>>> then >>>> >>>> ``` >>>> route[IS_CALLER_BLACKLISTED] { >>>> >>>> python_exec("check_caller_blacklisted"); >>>> >>>> if ($var(callerBlacklisted) == 1){ >>>> >>>> t_send_reply("403", "Forbidden"); >>>> >>>> acc_db_request("403 Forbidden", "acc"); >>>> >>>> exit; >>>> >>>> } >>>> >>>> ``` >>>> >>>> in `acc` i have now calls that were not answered with 200ok :) >>>> >>>> >>>> 2) add new fields on exsisting acc_cdrs table used to store cdrs >>>> >>>> ``` >>>> ALTER TABLE `acc_cdrs` ADD COLUMN `from_tag` varchar(128) DEFAULT NULL >>>> AFTER `dst_domain`; >>>> ALTER TABLE `acc_cdrs` ADD COLUMN `to_tag` VARCHAR(128) DEFAULT NULL >>>> AFTER `from_tag`; >>>> ALTER TABLE `acc_cdrs` ADD COLUMN `sip_code` VARCHAR(3) DEFAULT NULL >>>> AFTER `to_tag`; >>>> ALTER TABLE `acc_cdrs` ADD COLUMN `sip_reason` varchar(128) DEFAULT >>>> NULL AFTER `sip_code`; >>>> ALTER TABLE `acc_cdrs` ADD COLUMN `time` datetime DEFAULT NULL AFTER >>>> `sip_reason`; >>>> ``` >>>> >>>> ``` >>>> route[IS_CALLER_BLACKLISTED] { >>>> >>>> python_exec("check_caller_blacklisted"); >>>> >>>> if ($var(callerBlacklisted) == 1){ >>>> >>>> t_send_reply("403", "Forbidden"); >>>> >>>> acc_db_request("403 Forbidden", "acc_cdrs"); >>>> >>>> exit; >>>> >>>> } >>>> >>>> ``` >>>> >>>> In this way i have both stored calls that were not answered with 200ok >>>> and that were answered with 200ok. >>>> The idea is to have all in one table `acc_cdrs`. >>>> >>>> Can be ok also the second solution? >>>> >>>> Thank you very much! >>>> Miro >>>> >>>> Il giorno ven 14 giu 2019 alle ore 09:06 Daniel-Constantin Mierla < >>>> miconda(a)gmail.com> ha scritto: >>>> >>>>> Hello, >>>>> >>>>> I don't think that you can get a dialog-based CDR for calls that were >>>>> not answered with 200ok. But you can get a record in acc table, by storing >>>>> failed transaction record (see the mod params for acc and failed >>>>> transaction flag or use acc_db_request()). >>>>> >>>>> Cheers, >>>>> Daniel >>>>> On 13.06.19 22:45, Pejic, Miroslav wrote: >>>>> >>>>> Hi :) >>>>> >>>>> >>>>> I'm trying to save a failed call in the kamailio_router.acc_cdrs >>>>> database >>>>> >>>>> after sending the 403 Forbidden by router, using the module acc, if is >>>>> it possible? >>>>> >>>>> >>>>> https://www.kamailio.org/docs/modules/5.2.x/modules/acc.html >>>>> >>>>> >>>>> Something like this: >>>>> >>>>> >>>>> route[IS_CALLER_BLACKLISTED] { >>>>> >>>>> >>>>> python_exec("check_caller_blacklisted"); >>>>> >>>>> >>>>> if ($var(callerBlacklisted) == 1){ >>>>> >>>>> >>>>> t_send_reply("403", "Forbidden"); >>>>> >>>>> >>>>> IT’S POSSIBLE HERE SAVE A CALL ON KAMAILIO_ROUTER.ACC_CDRS? >>>>> >>>>> >>>>> >>>>> exit; >>>>> >>>>> } >>>>> >>>>> >>>>> Thanks in advance! >>>>> >>>>> Miro >>>>> >>>>> _______________________________________________ >>>>> Kamailio (SER) - Users Mailing Listsr-users@lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>>> >>>>> -- >>>>> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda >>>>> >>>>> -- >>>> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda >>>> >>>> _______________________________________________ >>>> Kamailio (SER) - Users Mailing List >>>> sr-users(a)lists.kamailio.org >>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >>>> >>>

1 0

Getting which timer has expired
by Igor Olhovskiy 14 Jun '19

14 Jun '19

Hi! Is there any way to get which timer on transaction actually expired? Scenario is following: INVITE - 180 - 200 OK - (restransmissions 250 msec starts) - pause 15 sec - ACK. In INVITE i'm setting t_on_reply("MY_REPLY") But in around 10 sec after first 200 OK (and 12 sec after INVITE) I'm getting in logs DEBUG: tm [h_table.c:133]: free_cell_helper(): freeing transaction 0x7fb632d77090 from timer.c:689 and on next 200 OK I'm never getting into onreply_route[MY_REPLY] again. Nowhere in the code or config I have explicit set any of timers with 10 or 12 seconds value. Most of them are default. So, can I somehow get which timer expired exactly? PS: If any, pause in 15 sec for a reason to emulate this issue. Regards, Igor

2 2

Event Route not found when loading XHTTP module
by Dhruva TS 14 Jun '19

14 Jun '19

Hello, I am new to Kamailio and I am using Kamailio 5.2. When trying to the load the XHTTP module, event route not found error is thrown and XHTTP is module is not getting loaded. I am trying to use JSONRPC module through HTTP transport for RPC calls. Using XMLRPC, things work fine. DEBUG: <core> [core/sr_module.c:896]: init_mod(): xhttp ERROR: xhttp [xhttp_mod.c:136]: mod_init(): failed to find event_route[xhttp:request] ERROR: <core> [core/sr_module.c:898]: init_mod(): Error while initializing module xhttp (/usr/lib/kamailio/modules/xhttp.so) ERROR: error while initializing modules I have added below to Kamailio.cfg file: loadmodule "xhttp.so" event_route[xhttp:request] { if(src_ip!=127.0.0.1) { xhttp_reply("403", "Forbidden", "text/html", "<html><body>Not allowed from $si</body></html>"); exit; } if ($hu =~ "^/RPC") { jsonrpc_dispatch(); } else { xhttp_reply("200", "OK", "text/html", "<html><body>Wrong URL $hu</body></html>"); } return; } Any help in this regard. Thanks, Dhruva

2 1

S-CSCF replies “Forbidden - Domain not served”
by Bao, Yin 13 Jun '19

13 Jun '19

We have configured Kamailio IMS (P, I, S-CSCF) to use a single realm with the same NETWORKNAME and trying to make a call between bob and alice. We are getting S-CSCF replies “Forbidden – Domain not served” in two scenarios: 1. When bob calls alice, the INVITE went from P->S->I->S and the destination S-CSCF responded this error 2. During SIP registration in responding to SUBSCRIBE (endpoint still can register even with this reply, so we proceeded with making call) In quick search we found that in scscf/kamailio.cfg route{ } implementation there is a case when this error is generated: # Terminating if (uri == myself || uri =~ "tel:.*") { if (!term_impu_registered("location")) { xlog("L_DBG", "We need to do an UNREG server SAR assignemnt"); assign_server_unreg("UNREG_SAR_REPLY", "location", "term"); exit; } } else { sl_send_reply("403","Forbidden - Domain not served"); exit(); } route(term); break; What is this error designed for? Also in general are we supposed to rework the routing code in Kamailio.cfg (P, S, I-CSCF)? Thanks for any suggestions in advance. Yin

1 0

Problem with Kamailio 5.2.x Repository
by Joshua Riffle 13 Jun '19

13 Jun '19

Hi, Heads up... I suspect the Kamailio 5.2.x RPM files for CentOS 7 were recently updated June 10th and are now no longer accepted by a standard yum install... *Repository file in /etc/yum.repos.d/:* [home_kamailio_v5.2.x-rpms] name=RPM Packages for Kamailio v5.2.x (CentOS_7) type=rpm-md baseurl= http://download.opensuse.org/repositories/home:/kamailio:/v5.2.x-rpms/CentO… gpgcheck=1 gpgkey= http://download.opensuse.org/repositories/home:/kamailio:/v5.2.x-rpms/CentO… enabled=1 *Operating System Version:* CentOS Linux release 7.6.1810 (Core) (Fresh image -- varying cloud providers) *Command to install:* yum install kamailio *Resulting error message:* kamailio-5.2.3-4.el7.centos.x8 FAILED http://download.opensuse.org/repositories/home%3A/kamailio%3A/v5.2.x-rpms/C…: [Errno 14] HTTPS Error 416 - Requested Range Not Satisfiable Trying other mirror. Error downloading packages: kamailio-5.2.3-4.el7.centos.x86_64: [Errno 256] No more mirrors to try. *Troubleshooting:* I verified the IP address for the opensuse URL with three different Internet providers and tested the installation on servers in different cloud providers geolocated in both Canada and United States and received the exact same results in all cases. -- Joshua Riffle *DevOps Lead & Duke of the Dial Tone* We Are Skyetel and You Are Awesome. p: (360) 843-9903 o: (360) 986-5200 s: http://www.skyetel.com e: josh(a)skyetel.com

2 2

CRITICAL ERROR in data_lamp.c!
by Mojtaba 13 Jun '19

13 Jun '19

Hello, What does this CRITICAL error mean? Jun 11 05:48:13 debian8 /usr/local/sbin/kamailio[8468]: {1 1 INVITE Njg0MzNhMzJhOTY3MzQ3NmNlNWY0ODkzMTJmNTM1ZTk.} CRITICAL: <core> [core/mem/q_malloc.c:486]: qm_free(): BUG: bad pointer 0xa3c188 (out of memory block!) called from core: core/data_lump.c: free_lump(466) - aborting I got it when i make new call during debugging new module in Kamailio? In module we have to change some message's body with data_lump. I asked relaed issue (strange behaviour while developing new module) in Kamailio developer forum <sr-dev(a)lists.kamailio.org> With Best Regards. -- --Mojtaba Esfandiari.S

2 10

dialog:end event route
by Igor Olhovskiy 13 Jun '19

13 Jun '19

Hi! Just to confirm, is event route [dialog:end] not called on fr_inv_timer expiry? Cause it's called on call busy (486) and reject (whatever 6xx). So, what's the idea of not calling it on timeout? Or I'm missing something? Kamailio 5.2 Thanks! Regards, Igor.

2 8

Best practises for websocket authentication
by Grant Bagdasarian 12 Jun '19

12 Jun '19

Hello, I was wondering if there are any best practices for authenticating websocket connection establishment inside the xhttp event route? Thanks and regards, Grant

3 3

TCP reset behavior
by R, Rajkumar (Raj) 12 Jun '19

12 Jun '19

Hi All, In our setup running kamailio (alpine image) in stateless mode and have following TCP config set. After client registers to the backend see two TCP connections created - one towards the client and the other towards the backendserver. If there's a abrupt network disconnect either at the client side or at the backend side, do not see TCP reset happening from kamailio as per the config. Per below config expected after 120seconds( = [tcp_keepidle] + ( [tcp_keepintvl * tcp_keepcnt] ) instead it keeps resending TCP keepalive packets at varying intervals for varying duration length(like 6mins, 14mins..) before resetting the TCP connections. Also want to mention that we are not using TCPOPS module here. I am trying to achieve consistent duration for TCP reset in kamailio. Could you please point me if I have missed anything here? Setup: Client ---- Kamailio (stateless mode) ---- Backend server TCP Config: tcp_connection_lifetime = 3600 tcp_accept_aliases = no tcp_async = yes tcp_connect_timeout = 10 tcp_crlf_ping = yes tcp_keepalive = yes tcp_keepcnt = 3 tcp_keepidle = 30 tcp_keepintvl = 30 # Total 2 mins - 30+(30*3)=120 sec tcp_linger2 = 30 tcp_rd_buf_size = 65536 tcp_send_timeout = 10 thanks, raj

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sr-users June 2019