January 2020 - sr-users

Diameter EVENT_REQUEST
by Steve Bucklin 13 Jan '20

13 Jan '20

Dear All, I was wondering if someone could give me a pointer on handling diameter "EVENT REQUEST" (416) I am a complete newb to the diameter, and have used a RESTCOMM SMS-C to generate charging requests. 1. I have got the CDP and other modules going and it connects with application (Diameter Credit Control Application (4) 2. I tried to use a simple ims_ocs module, but get a "getMethod()" error. Looking at the code, there are only three supported, START, INTERIM, & STOP. 3. I have captured the message in pcap - and all looks OK. 4. To examine the whole message I tried using the ims_diameter_server module to produce a JSON of all the values sent in the $diameter_request within the event_route, HOWEVER once the request arrives I get an error: ERROR: cdp [diameter_avp.c:645]: AAAUngroupAVPS(): hss3g_ungroup_avps: source buffer to short!! Cannot read the whole AVP header! I assume that the cdp function AAAUngroupAVPS() cannot sort the data into JSON due to a buffer issue. Any pointers? Steve

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Dúvidas
by Genildo Nascimento 13 Jan '20

13 Jan '20

Boa Noite. Instalei o kamailio mas não consigo usar Segue a configuração. baixei e adicionei chave GPG à sua lista de chaves apt wget -O- http://deb.kamailio.org/kamailiodebkey.gpg | sudo apt-key a Em seguida, adicionei as linhas do repositório ao seu arquivo /etc/apt/sources.list , Adicionei um repositório para a versão mais recente. sudo nano /etc/apt/source.list.d/kamailio.list versão ubuntu 16.04 deb http://deb.kamailio.org/kamailio53 xenial main deb-src http://deb.kamailio.org/kamailio53 xenial main Atualização do sistema e instalação do Kamailio sudo apt update sudo apt install kamailio kamailio-mysql-modules Editei o arquivo /etc/kamailio/kamctlrc e verifiquei se a DBENGINE variável está definida como MySQL. Removi o #símbolo para descomentá-lo. $ sudo nano / etc / kamailio / kamctlrc DBENGINE = MYSQL DBHOST = host local Instalei banco de dados apt install mysql-server modulos também apt -y install kamailio kamailio-mysql-modules kamailio-utils-modules rtpproxy Em seguida criei banco de dados para Mysql. sudo kamdbctl create logo após foi inserida a senha (xxxx) editei o arquivo /etc/kamailio/kamailio.cfg #! define WITH_MYSQL #! define WITH_AUTH *#! define WITH_USRLOCDB -> ao adicionar este iten o kamailio reiinicializa com erro (segue anexo arquivo jpeg)* #! define WITH_ACCDB Editei a linha da variável RUN_KAMAILIO no arquivo /etc/default/kamailio para que o kamailio possa rodar. RUN_KAMAILIO=yes configuração do rtpproxy no arquivo /ec/default/rtpproxy retirada do #simbolo control_sock=udp:localhost:7722 EXTRA_OPTS=" -l < IP local >" reinicio RTPproxy Obs: O sistema tambem não existe o arquivo /var/log/kamailio.log

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String Transformation Question
by Sam Ware 10 Jan '20

10 Jan '20

We are receiving traffic with a tech prefix. We want to be able to use a # (hash tag) for the separator for the tech prefix and the remote user ($rU). I was using the s.select transformation before when using * for separator, but I get an error because it appears that it being interpreted as a comment. Any suggestions? Example: ## How I was doing it with the * $avp(techprefix) = $(rU{s.select,0,*}); ## How I tried and got an error for the hash tag $avp(techprefix) = $(rU{s.select,0,#}); -- Sam D Ware

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Kamailio in Docker Compile Error
by Sam Ware 10 Jan '20

10 Jan '20

I am attempting to create my own docker image on Centos 7. During the build, I get the following error message during the "make all" phase. ---------------------------------------------------------------------- CC (gcc) [kamailio] core/cfg.tab.o LD (gcc) [kamailio] kamailio make[1]: which: Command not found make[1]: which: Command not found make[1]: which: Command not found make[1]: which: Command not found make[1]: which: Command not found make[1]: which: Command not found CC (gcc) [M db_mysql.so] km_dbase.o km_dbase.c:36:19: fatal error: mysql.h: No such file or directory #include <mysql.h> ^ compilation terminated. make[1]: *** [km_dbase.o] Error 1 make: *** [modules] Error 1 ------------------------------------------------------------------------ I checked and the mysql.h exists in the /usr/include/mysql directory. Any thoughts? FYI, here is my Dockerfile FROM centos:7 MAINTAINER “Sam D Ware” sware(a)o1.com ENV container docker RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in ; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); RUN rm -rf /lib/systemd/system/multi-user.target.wants/ \ && rm -rf /etc/systemd/system/.wants/ \ && rm -rf /lib/systemd/system/local-fs.target.wants/ \ && rm -f /lib/systemd/system/sockets.target.wants/udev \ && rm -f /lib/systemd/system/sockets.target.wants/initctl \ && rm -rf /lib/systemd/system/basic.target.wants/ \ && rm -f /lib/systemd/system/anaconda.target.wants/* VOLUME [ “/sys/fs/cgroup”] RUN yum -y install epel-release RUN yum -y update RUN yum -y install git-core gcc gcc-c++ flex bison mysql-devel RUN yum -y install mariadb-devel hiredis hiredis-devel curl nss make WORKDIR /usr/local/src/ RUN git clone --depth 1 --no-single-branch https://github.com/kamailio/kamailio kamailio WORKDIR /usr/local/src/kamailio/ RUN git checkout -b 5.3 origin/5.3 RUN make cfg COPY modules.lst /usr/local/src/kamailio/src/ RUN make all RUN make install RUN groupadd kamailio RUN adduser --system -g kamailio --shell /bin/false -c "Kamailio" --home /var/run/kamailio kamailio RUN cp /usr/local/src/kamailio/pkg/kamailio/obs/kamailio.sysconfig /etc/sysconfig/kamailio COPY kamailio.service /etc/systemd/system/kamailio.service RUN yum clean all; systemctl enable kamailio CMD ["/usr/sbin/init"] -- Sam D Ware

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caching 404 responses
by Krzysztof Drewicz 10 Jan '20

10 Jan '20

Hello would like to see if I'm not reinventing the wheel: scenario: some old powerdialler/predictive calls kamailio as call dispatcher, kamailio then dials carrier. But this dialler does many calls to the same B number with 404 response (from carrier) in short (retry is < 600s) time, so no need to bother PSTN/carrier with retry. Should I simply use htable, cache 404 hit, use some reasonable value modparam("htable", "db_expires", 1) put there like 600 s TTL or something like that? Any hints/thoughts? Maybe this scenario is common and being used with success somewhere (and yes, this powerdialer is not very clever, and I do know it should not be needed for this) Thanks, -- *Krzysztof Drewicz* Senior Infrastructure Administrator CLUDO | ul. Grochowska 306/308, 03-840 Warszawa t+48221223977 kdrewicz(a)cludo.pl | www.cludo.pl <http://www.cludo.pl/>

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TCP packet bundling
by Alex Balashov 09 Jan '20

09 Jan '20

Hi, I wanted to get clarity on a rather basic question: When using Kamailio with TCP, is it possible to end up with fragments of multiple SIP messages in a single "on-the-wire" packet? >From what I understand, the purpose of Kamailio's setting TCP_NODELAY is to prevent such bundling--as much as it is possible to control the fragmentation/packetisation behaviour of the transport protocol from a user-space application. -- Alex -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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Huge DB load while using location and registrar module (save()).
by Voip support 09 Jan '20

09 Jan '20

Dear Community, I am facing an issue with using the usrloc and registrar module to save registration informations in database. It works for me but when tested yesterday with around 1500-1600 users i got a lot of queries on database mostly SELECT. I figured out that changing db_mode to 0 resolves the issue because it works totally in memory (almost no select query on DB). So i think its location module. I tried db_mode=3 and db_mode=2 but both create a lot of load on database. The only function i need is to store some information of REGISTER in DB to know the count of registered users and the source IP / user-agent / username data. It needs to be saved in table on successfull REGISTRATION and removed when registration is expired or somebody UN-REGISTER. When used location module for that there was lots of queries like this (20000-50000 per second): select `contact`,`expires`,`q`,`callid`,`cseq`,`flags`,`cflags`,`user_agent`,`received`,`path`,`socket`,`methods`,`last_modified`,`ruid`,`instance`,`reg_id`,`server_id`,`connection_id`,`keepalive` from `location` where `username`='xxxx' order by q update `location` set `expires`='2020-01-08 18:51:39',`q`=-1.000000 ,`cseq`=2042,`flags`=0,`cflags`=64,`user_agent`='n/a',`received`='sip:xxxx:5060',`path`=NULL,`socket`='udp:xxxx:20051',`methods`=NULL,`last_modified`='2020-01-08 18:50:39',`callid`='1205705227@xxxx ',`instance`=NULL,`reg_id`=0,`server_id`=0,`connection_id`=-1,`keepalive`=1,`contact`='sip:1019@xxx:5060' where `ruid`='uloc-5e1642a3-2b90-0161' Looking up for ideas how to resolve this issue. I was thinking of implementing INSERT UPDATE and DELETE based on SQLops. But how to recognize that REGISTER was expiered? I would like location module to work mostly like in-memory. For each new registration INSERT entry to DB, each REGISTER re-new an UPDATE or DELETE should be triggered. So i would expect for 1000 users around 2000 operations per minute. Best regards, Tom

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Kamailio v5.3.2 Released
by Daniel-Constantin Mierla 09 Jan '20

09 Jan '20

Hello, Kamailio SIP Server v5.3.2 stable release is out. This is a maintenance release of the latest stable branch, 5.3, that includes fixes since the release of v5.3.1. There is no change to database schema or configuration language structure that you have to do on previous installations of v5.3.x. Deployments running previous v5.3.x versions are strongly recommended to be upgraded to v5.3.2. For more details about version 5.3.2 (including links and guidelines to download the tarball or from GIT repository), visit: * https://www.kamailio.org/w/2020/01/kamailio-v5-3-2-released/ RPM, Debian/Ubuntu packages will be available soon as well. Many thanks to all contributing and using Kamailio! Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - April 27-29, 2020, in Berlin -- www.kamailioworld.com

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Ask for Siremis document
by Thanh Tran 09 Jan '20

09 Jan '20

Hi, I looking for Administration Document for Siremis but can't find it. Can you share document ? Thanks,

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Releasing Kamailio v5.3.2
by Daniel-Constantin Mierla 09 Jan '20

09 Jan '20

Hello, not so many fixes since the release of 5.3.1, but it looks enough to release a new minor version from branch 5.3. I am planning to do in on Thursday, Jan 9, 2020, if there are no new reports of relevant issues that make us to reconsider and postpone. Soon after we should probably do a release from branch 5.2 as well as the last one from branch 5.1. Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - April 27-29, 2020, in Berlin -- www.kamailioworld.com

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