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37519 discussions

Any document to study and develop kamailio
by sgy 06 Jun '17

06 Jun '17

Hi All, I can't find any document(PDF) to study and develop kamailio, do someone show me where it is. thank you -- Best Regards, Shengy

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Kamailio 4.4.4 crash in tcp_read_headers()
by Armen Babikyan 06 Jun '17

06 Jun '17

Hello, Over the past few months, I've seen a smattering of kamailio crashes on various systems with identical backtraces: SIGSEGV in tcp_read_headers(), at tcp_read.c line 628. Example here: https://pastebin.com/qJ3ypnVz Note that in frame 0, print *c shows that req->parsed is pointing to an address exactly 8GB lower than req->buf. That req->parsed is pointing to an invalid memory location, crashing kamailio when the location is dereferenced. In other coredumps, I see that req->parsed is pointing to an address exactly 4GB lower than req->buf. Other info: This is Kamailio 4.4.4 on x86_64. I've not had success trying to reproduce this yet. Also worth noting that the crashes seem to be consistently associated with processing traffic from a UA connected over SIP/TCP; I've seen no other transport associated with this crash. Thoughts are welcome. Thanks! Armen

2 3

Rtpproxy didn't work
by sgy 03 Jun '17

03 Jun '17

I install rtpproxy and config as follow, but it didn't work, is my config OK ? errorlog: Jun 3 15:00:56 iZ2ze3uk97m2bfv681kyx4Z /usr/local/sbin/kamailio[28971]: ERROR: rtpproxy [rtpproxy.c:2552]: force_rtp_proxy(): incorrect port 0 in reply from rtp proxy Jun 3 15:00:58 iZ2ze3uk97m2bfv681kyx4Z /usr/local/sbin/kamailio[28971]: ERROR: rtpproxy [rtpproxy.c:2552]: force_rtp_proxy(): incorrect port 0 in reply from rtp proxy My config: PUB_IP: public ip of kamailio PVT_IP: private ip of kamailio 1. start rtpproxy rtpproxy -l PUB -s udp:localhost:7722 -F 2. kamailio.cfg #!define WITH_MYSQL #!define WITH_AUTH #!define WITH_ALIASDB #!define WITH_USRLOCDB #!define WITH_NAT listen=PVT_IP modparam("rtpproxy", "rtpproxy_sock", "udp:localhost:7722") -- Best Regards, Shengy

3 3

Rtpproxy didn't work
by sgy 03 Jun '17

03 Jun '17

I install rtpproxy and config as follow, but it didn't work, is my config OK ? My config: PUB_IP: public ip of kamailio PVT_IP: private ip of kamailio 1. start rtpproxy rtpproxy -l PUB -s udp:localhost:7722 -F 2. kamailio.cfg #!define WITH_MYSQL #!define WITH_AUTH #!define WITH_ALIASDB #!define WITH_USRLOCDB #!define WITH_NAT listen=PVT_IP modparam("rtpproxy", "rtpproxy_sock", "udp:localhost:7722") -- Best Regards, Shengy

1 0

Adding debugger module to kazoo-kamailio
by Joe Baran 02 Jun '17

02 Jun '17

I’m hoping that someone might have some suggestions on how to approach this. I’ve been working with kamailio as part of kazoo (via RPM install) and have been attempting to add the debugger module so I can trace things as they pass through kamailio. However, I need some help in determining the most effective way of adding this. Has anyone already done this / have any suggestions? Thanks, Joe

2 1

topos module - possible bug
by Pete Kelly 02 Jun '17

02 Jun '17

Hi I am using the topos module when bridging 2 networks with Kamailio. The INVITE/200OK part of the transaction is working fine (i.e. the Contact on both sides matches correctly the corresponding network). However when the ACK is sent into Kamailio, instead of realising the next hop is myself and skipping it, Kamailio is sending the ACK directly to itself as a packet, causing the call setup to break. Does anyone have any advice for this situation?

3 34

Kamctl does not work. Kamailio 4.4
by Denys Pozniak 02 Jun '17

02 Jun '17

Hello! I have installed Kamailio 4.4 on CentOS7 from repo. ( http://download.opensuse.org/repositories/home:/kamailio:/v4.4.x-rpms/CentO… ) When I try to run kamctl I have next error: # kamctl ps WARNING: no control engine found - tried 'RPCFIFO' ERROR: This command requires a control engine - none was loaded Kamcmd works well: # kamcmd ps 20591 main process - attendant 20595 udp receiver child=0 sock=10.10.54.53:5080 20596 udp receiver child=1 sock=10.10.54.53:5080 20597 udp receiver child=2 sock=10.10.54.53:5080 20598 udp receiver child=3 sock=10.10.54.53:5080 20599 slow timer 20600 timer 20601 secondary timer 20602 ctl handler 20603 MI FIFO Whats missing with kamctl and how to force it working? Configs are below. BR, Denys #cat /etc/kamailio/kamctlrc DBENGINE=MYSQL DBHOST=127.0.0.1 DBNAME=kamailio DBRWUSER="root" DBRWPW="toor" DBROUSER="root" DBROPW="toor" DBACCESSHOST=127.0.0.1 DBROOTUSER="root" #cat /etc/modules.cfg #!KAMAILIO debug=2 log_stderror=no memdbg=5 memlog=5 log_facility=LOG_LOCAL0 fork=yes children=4 disable_tcp=yes listen=udp:10.77.254.53:5080 auto_aliases=no alias = "domain.local" mpath="/lib64/kamailio/modules/" loadmodule "tm.so" loadmodule "rr.so" loadmodule "pv.so" loadmodule "sl.so" loadmodule "maxfwd.so" loadmodule "nathelper.so" loadmodule "textops.so" loadmodule "siputils.so" loadmodule "xlog.so" loadmodule "sanity.so" loadmodule "path.so" loadmodule "outbound.so" loadmodule "stun.so" loadmodule "db_mysql.so" loadmodule "lcr.so" loadmodule "avpops.so" loadmodule "ctl.so" loadmodule "mi_fifo.so" loadmodule "mi_rpc.so"

2 2

relationship between debian kamailio.service and kamailio.init
by Juha Heinanen 02 Jun '17

02 Jun '17

Could someone who knows about systemd tell, what is the relationship between deb/stretch kamailio.service and kamailio.init files? kamailio.service contains kamailio binary argument values and command to start kamailio, but kamailio.init does much more. Why do both exist? -- Juha

1 0

RTPEngine a=rtcp-mux
by Igor Olhovskiy 02 Jun '17

02 Jun '17

Hi! I’m trying to make RTPEngine to work with calls Browser <-> SIP. Call From SIP to Browser working perfectly, but when calling to SIP from Browser, on 200 OK (sdp) I don’t receive ... a=rtcp-mux ... lines, but it was told to RTPEngine on reply_route to add this. And this line is mandatory for me, cause I don’t control JS softphone on other side Reply route in a case of Browser->SIP call looks like reply_route[REPLY_R] { … rtpengine_answer("internal external UDP/TLS/RTP/SAVPF ICE=force rtcp-mux-offer"); ... } Also I’ve tried with rtcp-mux-accept but still no luck Regards, Igor

2 3

Multiple c params in SDP
by Grant Bagdasarian 02 Jun '17

02 Jun '17

Hi, We're currently using Kamailio 4.4.1 with RTPENGINE and one of our clients is sending an INVITE with two c params in the SDP, one in the Session Description, one in the Media Description. When Kamailio contacts RTPENGINE to request a port, only the IP (c param) in the Media Description is changed. The next hop, which is a Freeswitch, in turn sends the RTP stream to the IP in the Session Description. Has anyone experienced this behavior? Is it possible to change both IP (c param) in the Session and Media Description? Regards, Grant

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