December 2015 - sr-users

transformations {s.rm,match}
by Jonathan Hunter 11 Dec '15

11 Dec '15

Hi Guys, I have been using {s.rm,match} to remove occurrences of numbers, however I am aware it removes all occurrences. Is it possible to make it only remove the first occurrence and not all? For example If I am looking to modify 639157407639 I want to remove only the first 63, not both. So I end up with 9157407639 and not 91574079. Is it possible with a transformation of is regex the way ? thanks Jon

2 1

Dispatcher Module & ds_load_list enhancement
by jay binks 11 Dec '15

11 Dec '15

Just an observation and enhancement suggestion. VERY occasionally Ive been getting *ERROR: <core> [parser/parse_param.c:591]: parse_params2(): parse_params(): No memory left* Now I know this is the root of the problem BUT ... it would be nice if it didnt leave my kamailio with no dispatchers at all. Im just suggesting that rather than calling destroy_list before re-populating the list. Could this be changed to create a new list, swap over the pointers to the new distributor list ( IF it has > 0 entries ) and then destroy_list . its just a thought ? -- Sincerely Jay

2 1

Asynchronous processing increases branch count
by Alex Balashov 11 Dec '15

11 Dec '15

Hi, Normally with serial forking, the first branch ID corresponds to $T_branch_idx == 0, i.e. Via: SIP/2.0/UDP 172.30.110.4;branch=z9hG4bK7f3d.57593ee3a139f0ae6c4a8a0f531e342c.0 In the event of failure, a second branch attempt has a branch index of 1 and so on: Via: SIP/2.0/UDP 172.30.110.4;branch=z9hG4bK7f3d.57593ee3a139f0ae6c4a8a0f531e342c.1 However, when I use asynchronous processing with t_suspend() / t_continue(), resuming the transaction in an rtimer process, I notice that the $T_branch_idx of the first branch is 1, then 2. Where did 0 go? Is this a normal effect of TM suspend/continue? Thanks! -- Alex -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

2 1

problem with cfgtrace
by Joao Alves 11 Dec '15

11 Dec '15

Hi, Have just installed kamailio 4.3.4 and for some reason not getting cfgtraces from debugger. I've picked the default kamailio-advanced.cfg, and did no changes other than setting #!define WITH_DEBUG. Any suggestions on what could be causing this to happen? Thanks! Joao Alves This message and the information contained herein is proprietary and confidential and subject to the Amdocs policy statement, you may review at http://www.amdocs.com/email_disclaimer.asp

2 1

problem with cfgtrace
by Joao Alves 10 Dec '15

10 Dec '15

Hi, Have just installed kamailio 4.3.4 and for some reason not getting cfgtraces from debugger. I've picked the default kamailio-advanced.cfg, and did no changes other than setting #!define WITH_DEBUG. Any suggestions on what could be causing this to happen? Thanks! Joao Alves This message and the information contained herein is proprietary and confidential and subject to the Amdocs policy statement, you may review at http://www.amdocs.com/email_disclaimer.asp

1 0

WebRTC no longer supports RTP
by Yuriy Gorlichenko 10 Dec '15

10 Dec '15

https://developers.google.com/web/updates/2015/10/chrome-47-webrtc So at 47 chrome we already have no sound. What kind of proto we must use and how to handle this with rtpengine? Do anyone have same problems with it?

2 2

info: kamailio.org updates - letsencrypt for https and dkim for email
by Daniel-Constantin Mierla 10 Dec '15

10 Dec '15

Hello, during the past few days I made some updates related to the security aspects of kamailio.org services. Two are relevant for the community. 1) First, kamailio.org uses now a TLS certificate signed by letsencrypt.org, a free trusted CA backed up by Mozilla and other internet companies, so browsing via HTTPS should no longer issue any warning of untrusted certificate (previously we used a CACert.org certificate which was not trusted automatically by browsers). Wiki and mailing lists portals use the letsencrypt certificate as well, so is no reason not to browse all kamailio.org and lists.sip-router.org pages only via HTTPS. Perhaps in the near future we will try to enable redirect of HTTP to HTTPS at least for the main page and login pages for wiki, mailing lists and other places that require sensitive data. Now SSLLabs test ranks https://kamailio.org with grade A: * https://www.ssllabs.com/ssltest/analyze.html?d=kamailio.org&latest As a side note, for those that haven't noticed it, for quite some time kamailio.org is available also over IPv6. 2) Second, emails forwarded by kamailio.org and lists.sip-router.org are having now a DKIM signature. Also, there are SPF records in DNS for these domains. Hopefully, those two will help getting the emails to be allowed by various spam filters out there, as their legit origin can be checked. If you check the sources of an email messages and the email server of receiving party is doing DKIM/SPF checks, you should see some headers like next (taken from an email I received to my gmail account from sr-users mailing list): """ Authentication-Results: mx.google.com; spf=pass (google.com: domain of sr-users-bounces(a)lists.sip-router.org designates 193.22.119.66 as permitted sender) smtp.mailfrom=sr-users-bounces(a)lists.sip-router.org; dkim=pass header.i=(a)lists.sip-router.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.sip-router.org; s=20151206; h=Sender:Content-Type:List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Reply-To:Subject:MIME-Version:Message-ID:To:From:Date; bh=lGjvCZYcxBHUHaJDnut1j2YTyPsXTnXHzUb0CgcDc1Q=; b=DlD+MKoEqyISB5Ba775t3zg70FC6ouC+tEo7j5zv4dn2Dhm4pWqkQXSfU4Kp1NqW1ZRYFC/mpg/7LEcGW2FlDL9J0FpUg1VjNmN7D1wvtW08hBBw91tsXImu9yf7KZjg/p4IbXu6vznldubrSxweIaV3q/xbrLgaqP5Dsrvs/9A=; """ Kamailio is not enforcing any of those policies on received email messages, so sending to the lists should not be affected. Should anyone discover problems when browsing the web portals or notices issues with emails from our mailing lists, report them to sr-dev mailing list. Also, if anyone has more hints on increasing the security/privacy for the web server and email systems we run for kamailio.org, do not hesitate to provide us suggestions. Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com http://miconda.eu

3 2

RTPPROXY unpredictable behavior
by Javohir Maxmarajabov 10 Dec '15

10 Dec '15

I am trying to enable RTPPROXY on debian, but it seems RTPProxy is ignoring my arguments... So, I am launching RTPPROXY using command: rtpproxy -l _MY_PUBLIC_IP_ -s udp:127.0.0.1 7722 -p /var/run/rtpproxy.pid -R -a -P -r /tmp/rtppath -S /tmp/rtpspool -u rtpproxy rtpproxy Also tried with: rtpproxy -l _MY_PUBLIC_IP_ -s udp:127.0.0.1 7722 -u rtpproxy rtpproxy And when I try to start Kamailio service I am getting error: 0(10562) ERROR: rtpproxy [rtpproxy.c:1681]: send_rtpp_command(): can't send command to a RTP proxy 0(10562) ERROR: rtpproxy [rtpproxy.c:1716]: send_rtpp_command(): proxy does not respond, disable it 0(10562) WARNING: rtpproxy [rtpproxy.c:1573]: rtpp_test(): can't get version of the RTP proxy 0(10562) WARNING: rtpproxy [rtpproxy.c:1610]: rtpp_test(): support for RTP proxy has been disabled temporarily p.s. I have checked RTPPROXY, and I am sure that it is launched ps aux | grep rtpproxy returned me: root 2770 0.0 0.0 19392 480 ? Ssl 04:59 0:00 /usr/bin/rtpproxy -l _MY_PUBLIC_IP_ -s udp:127.0.0.1 7722 -p /var/run/rtpproxy.pid -R -a -P -r /tmp/rtppath -S /tmp/rtpspool -u rtpproxy rtpproxy root 2775 0.0 0.0 11740 932 pts/1 S+ 04:59 0:00 grep --color=auto rtp Which says everything is ok and rtpproxy is running with arguments that I declared But the problem is, When I check it with: netstat -tulpn | grep rtpproxy I am receiving: udp 0 0 127.0.0.1:22222 0.0.0.0:* 2853/rtpproxy As you can see rtpproxy is listening on port 22222 and completely ignoring arguments I declared :( Where and What am I doing wrong? Sorry for my English and Thanks in advance... -- Javokhir M.M. ________________________________________________ Disclaimer: The information in this e-mail is confidential. If you are not addressed recipient then please return and delete this e-mail from your system. Unauthorised use of or disclose the contents of this e-mail may be unlawful.

2 1

having a count of lost response for dialog keep alives
by Jayesh Nambiar 10 Dec '15

10 Dec '15

Hi, I'm using dlg_set_property(ka-src) and dlg_set_property(ka-dst) to keep alive my clients. In case of a network change the client does a Re-Invite with the new contact address and kamailio does keep-alives to the new address properly as the fix reported here: https://github.com/kamailio/kamailio/issues/273 The problem happens when the Re-Invite transaction on the client side is not complete and kamailio happens to send an OPTIONS keep-alive at that same time, the client fails to send back a 200 OK, because the client itself is trying to gain access on the new network. So as a work-around I thought would it be possible to end the dialog on missing at least 3 responses and not killing the dialog if one response is missed. Can it be a configurable parameter in the dialog module or something on those lines. Just a suggestion !! Thanks. - Jayesh

2 2

random incorrect method parsing
by Vasiliy Ganchev 10 Dec '15

10 Dec '15

Hi folk! Have a strange issue, and cannot understand what is wrong. Test scheme UA(sip) -> INVITE -> Kamailio The transport protocol used is TCP. The issue is reproduced randomly, in case of wrong INVITE, Kamailio does not parse Method from R-URI and answer "400 CSeq method does not match request method". The log with debug level 3 for such INVITE: https://gist.github.com/vance-od/c4e1c783adba02d80c58 my first confuse is why in line 2 different number of bytes: "read= 1025 bytes, parsed=1037" the second is in line 12: Method value is empty after this everithing brokes and kamailio answers 400. Just another call: the same setup (same device, kamailio instance etc), same conditions, just another call. Everything is OK, similar part for good call: https://gist.github.com/vance-od/01b5dff2d81f0878cff4 All my attempts to find the diff between to messages goes to nothing, the 2 INVITEs looks similar, the wireshark analyse of TCP level - also had no result (all is similar) The issue happens only with one of our devices and only in case of TCP/TLS (UDP constantly ok, this is why I am assured the problem is in device, but I need proofs) version: kamailio 4.2.5 (i386/linux) flags: STATS: Off, EXTRA_DEBUG, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, F_MALLOC, DBG_F_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. will appreciate any help or idea ,with such a mess! Cheers! -- View this message in context: http://sip-router.1086192.n5.nabble.com/random-incorrect-method-parsing-tp1… Sent from the Users mailing list archive at Nabble.com.

2 5