- sr-users - kamailio.org

Transactions help
by Alexis Fidalgo 24 Dec '24

24 Dec '24

Hello, after the discussion regarding http and http_async, I started some labs to make a comparison and see what’s the trade off and the associated cost. Main problem (to me) is im not clear on how transactions behave. Im running some fast tests now before I start to deploy the final scenarios and 1. A new transaction is created before the http_async call (as the module example shows for http_async_query function 2. The http_async_query call is executed, receives a response and the HTTP_REPLY route for http_async_query is executed. 3. As we need to redirect the call, im adding Contact information with append_to_reply and then calling t_reply(302,”Redirect) Up to here INVITE is received, a 100 is answered and then the 302 with the expected Contact information (collected and built from the http_async_query response), problem is that the 302 is retransmitted 3 more times. So, im not even sure that im doing the correct actions to process the call this way. Is there a document/book/reference I can read to understand transactions better? By now I can not handle the call to be processed correctly (without the retransmissions) and finish the transaction the correct way. Any help, link, guide, will be appreciated. Regards.

6 17

Kamailio not receiving packets on high CPS
by Sergio Charrua 23 Dec '24

23 Dec '24

Hello! for this ST/SH project, we are using Kamailio 5.8.4 in stateless mode, making HTTP requests to a REST API (Java Spring) that will reply with a JSON object, and then Kamailio replaces the Contact header and sends a SIP 300 Multiple Choice reply to the SBC that sent the initial INVITE. Kamailio is running on a VM with 4vCPUs and 4GB RAM and 2 NICs. On NIC ens224 there is a Virtual IP managed by Keepalived. Kamailio is listening on port 5060 on ens224 and set with 32 children process (tried with 8, 16, 24 and also 64, but with this value it was a lot worst). We are doing load performance tests on our PreProd environment. With the SBC we are sending 450 to 600 CAPS to Kamailio, and what we noticed is that above 450 CAPS, and after less than 1 minute, Kamailio only replies SIP 100 to some INVITEs. We also could figure out that Kamailio is not receiving all the INVITES, despite having proved that ALL invites are sent to the server. It seems to me that, for some reason, the OS is somehow not able to deliver *all* SIP packets to Kamailio, because: - sngrep does capture all the SIP packets and shows the flows - though the flow shows SIP invite coming from SBC to Kamailio Server, there is no SIP 100 replied back to SBC, even though this is the 1st thing kamailio does, so, for me, Kamailio did not received the SIP Invite - picking a call with reinvites, which after some seconds, SBC cancels, if I copy the Call-ID value and grep on kamailio's logs, I just do not find any content! I have read some "network tuning" articles, including Linux Tune Network Stack (Buffers Size) To Increase Networking Performance - nixCraft <https://www.cyberciti.biz/faq/linux-tcp-tuning/> and Tuning Kamailio for high throughput and performance | Evariste Systems Blog <https://blog.evaristesys.com/2016/02/15/tuning-kamailio-for-high-throughput…> and when running the following command I get: $ ss -4 -n -l | grep 5060 udp UNCONN 0 0 10.242.17.125:5060 0.0.0.0:* udp UNCONN 324224 0 10.242.17.146:5060 0.0.0.0:* According to the article, the 3rd column should be as near 0 as possible, ideally 0. While I am waiting for some sysadmin with root permissions to be available and modify some of the network parameters on this VM, I wonder if anyone has some tips to share on how to solve this behaviour. I'm not sure, either, what parameters to change or if they should be changed! The goal is to have a minimum 750 CAPS. Lastly, some parts of the code: Kamailio.cfg: > ### LOG Levels: 3=DBG, 2=INFO, 1=NOTICE, 0=WARN, -1=ERR > debug=1 > log_stderror=no > rundir="/tmp" > memdbg=5 > memlog=5 > log_facility=LOG_LOCAL0 > # configure the prefix for all log messages > log_prefix_mode = 1 > log_prefix="{$mt $hdr(CSeq) $ci} " > /* number of SIP routing processes */ > children=32 # ------------- ALREADY TRIED WITH 8,16,24... no results..... > /* uncomment the next line to disable TCP (default on) */ > disable_tcp=no > /* uncomment the next line to disable the auto discovery of local aliases > * based on reverse DNS on IPs (default on) */ > # auto_aliases=no > /* add local domain aliases */ > # alias="sip.mydomain.com" > ####### Custom Parameters ######### /* These parameters can be modified runtime via RPC interface * - see the documentation of 'cfg_rpc' module. * * Format: group.id = value 'desc' description * Access: $sel(cfg_get.group.id) or @cfg_get.group.id */ ####### Modules Section ######## /* set paths to location of modules */ loadmodule "db_mysql.so" loadmodule "db_cluster.so" loadmodule "http_client.so" loadmodule "jsonrpcs.so" loadmodule "kex.so" loadmodule "corex.so" loadmodule "sl.so" loadmodule "pv.so" loadmodule "maxfwd.so" loadmodule "textops.so" loadmodule "xlog.so" loadmodule "sanity.so" loadmodule "jansson.so" loadmodule "snmpstats.so" loadmodule "file_out.so" loadmodule "ctl.so" loadmodule "permissions.so" loadmodule "xhttp.so" loadmodule "xhttp_rpc.so" ####### Other Args and Env Vars ######### /* listen addresses */ include_file "listen.cfg" include_file "db_conn.cfg" # ----------------- setting module-specific parameters -------------- # --- DB Cluster params --- # minimum requirement is to have DBURL1 defined #!ifdef DBURL1 modparam("db_cluster", "connection" , DBURL1) #!endif #!ifdef DBURL2 modparam("db_cluster", "connection" , DBURL2) #!endif #!ifdef DBURL3 modparam("db_cluster", "connection" , DBURL3) #!endif #!ifdef DBURL4 modparam("db_cluster", "connection" , DBURL4) #!endif #!ifdef DBURL5 modparam("db_cluster", "connection" , DBURL5) #!endif modparam("db_cluster", "cluster", DBCLUSTER) # --- Permissions params --- modparam("permissions", "db_url", "cluster://k1") modparam("permissions", "db_mode", 1) #modparam("permissions", "reload_delta", 30) # ----- jsonrpcs params ----- modparam("jsonrpcs", "pretty_format", 1) /* set the path to RPC fifo control file */ modparam("jsonrpcs", "fifo_name", "/tmp/kamailio_rpc.fifo") /* set the path to RPC unix socket control file */ modparam("jsonrpcs", "dgram_socket", "/tmp/kamailio_rpc.sock") modparam("jsonrpcs", "transport", 0) # ----- ctl params ----- /* set the path to RPC unix socket control file */ modparam("ctl", "binrpc", "unix:/tmp/kamailio_ctl") # ----- http_async_client params ----- modparam("http_client", "query_result", 0) modparam("http_client", "keep_connections", 0) modparam("http_client", "connection_timeout",2) modparam("http_client", "timeout_mode",2) modparam("http_client", "config_file", "/usr/local/etc/kamailio/http_client.cfg") # ---- SNMP Stats params ---- modparam("snmpstats", "sipEntityType", "proxyServer") modparam("snmpstats", "sipEntityType", "redirectServer") modparam("snmpstats", "sipEntityType", "other") modparam("snmpstats", "snmpgetPath", "/usr/bin/") modparam("snmpstats", "MsgQueueMinorThreshold", 20) modparam("snmpstats", "MsgQueueMajorThreshold", 100) modparam("snmpstats", "dlg_minor_threshold", 20) modparam("snmpstats", "dlg_major_threshold", 100) modparam("snmpstats", "snmpCommunity", "kamailio") # ---- File_Out params ---- modparam("file_out", "base_folder", "/data/sabire002/log/kamailio/") modparam("file_out", "file", "name=stsh_requests;interval=1440;extension=.log") modparam("file_out", "file", "name=cdr;interval=1440;extension=.log") modparam("file_out", "file", "name=http;interval=1440;extension=.log") ####### Routing Logic ######## include_file "includes/reqinit.cfg" include_file "includes/handle_options.cfg" include_file "includes/handle_cancel.cfg" include_file "includes/handle_stir_shaken_stateless.cfg" include_file "includes/handle_http_rpc.cfg" request_route { $avp(START_TIME)=$utimef(%Y-%m-%d %H:%M:%S); $avp(GROUPID) = allow_address_group($si, $sp); if ( $avp(GROUPID) == 100 || !allow_address_group($si, $sp) ) { xlog("L_INFO", "INIT - $si:$sp is not in the allowed ACL Group ID !\n"); #sl_reply("401", "Address not allowed"); exit; }; if (is_method("ACK") ) { #&& t_check_trans() ){ exit; } if (is_method("INVITE")) { file_out("cdr","$rm|$ft|$tt|$ci|$rs|$rr|$Ts|$avp(START_TIME)|$fU|$fd|$si|$tU|$rU|$rd|$utimef(%Y-%m-%d %H:%M:%S)"); send_reply("100","Trying"); } route(HANDLE_OPTIONS); route(REQINIT); xlog("L_INFO"," ********** Route START ***********"); # log the basic info regarding this call xlog("L_INFO","=================================================== \n"); xlog("L_INFO","New SIP message $rm with call-ID $ci received $pr request $rm $ou source $si:$sp from $fu to $tu \n"); xlog("L_INFO","=================================================== \n"); route(HANDLE_STIRSHAKEN); route(HANDLE_CANCEL); if (method == "INVITE"){ route(RELAY); } } route[RELAY] { # Sends a 300 Multiple Choices back to the proxy that requested the routing lookup xlog("L_INFO","RELAY - send reply \n"); file_out("cdr","RELAY|$ft|$tt|$ci|$rs|$rr|$Ts|$avp(START_TIME)|$fU|$fd|$si|$tU|$rU|$rd|$utimef(%Y-%m-%d %H:%M:%S)"); send_reply("300", "Multiple Choices"); exit; } As for the HANDLE_STIRSHAKEN route, where the main process is: route[HANDLE_STIRSHAKEN] { if (!is_method("INVITE")) { return; } $xavp(requestTime) = $utimef(%s); $var(post) = $null; // resets and makes sure the $var(post) variable is null before usage [.... get some header values ...] $var(res) = http_connect("api1", "/stsh", "application/json", "$var(post)", "$var(result)"); jansson_xdecode($var(result), "json"); if ( $xavp(json=>sip-response-code) == 300 ) { remove_hf("Contact"); append_to_reply("Contact: $xavp(json=>contact)\r\n"); } else { # add error message to reply sl_reply("$xavp(json=>sip-response-code)","$xavp(json=>sip-response-text)"); exit; } } Atenciosamente / Kind Regards / Cordialement / Un saludo, *Sérgio Charrua*

8 73

How to use @via[idx] ?
by Benoit Panizzon 23 Dec '24

23 Dec '24

Hi https://www.kamailio.org/wikidocs/cookbooks/5.7.x/pseudovariables/#selname-… https://www.kamailio.org/wikidocs/cookbooks/5.7.x/selects/#viaihost I'm trying to list all via hosts: $var(dooh) = @via[1].host; xlog("L_INFO","******** VIA HOST 1: $var(dooh) \n"); This above works as expected I get the 2nd entry. $var(i) = 0; while ($var(i) < $hflc(Via)) { $var(dooh) = @via[$var(i)].host; xlog("L_INFO","******** VIA HOST: $var(dooh) \n"); $var(i) = $var(i) + 1; } This fails with syntax error. How do I specify the index of the via header I want to extract the host from? I also attempted $sel(via[$var(i)].host) or via[$var(i)] or $sel(hfl(via[$var(i)])).host but I found no variant not throwing an error. PS: Is there maybe another nice function to figure out if we have already seen (and how many times we have) this same message? 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 ______________________________________________________

3 5

KAMI python3 and python3s not working / reloading
by trle.fuad＠gmail.com 20 Dec '24

20 Dec '24

Hello, I've started testing/learning KEMI and decide to use python3(s). I'm using default config with kamailio-basic-kemi-python3s.py (just deleted a couple of routes for simplicity). First thing I noticed is that reloading is not working. I've changed simple log line and did kamcmd app_python3s.reload. I'm compiling from source (inside Docker container, Debian bookworm as base), and have noticed it stopped working after thees commits for python3s: 62b4ee4a0d0b62b35c8bdf67e5daf9cbe9a28499 app_python3s: refactor GIL and thread state handling c81b2b3383c5900aba83672da024c812d8e6d89d app_python3s: initial support for free-threading Python And for python3 0ffe157bc13e7759ae1cee63a584fad4ac9eb38f app_python3: refactor GIL and thread state handling Am I missing some new parameter for module or compile flag? What I've noticed it's not only that it not reload, it also does not go through complete config file. While reloading, I see marking for reload. But nothing after that: 22(774) DEBUG: ctl [../../core/io_wait.h:368]: io_watch_add(): processing io_watch_add(0x748d1dfb83c0, 11, 3, 0x5f0adde454d0) - fd_no=1 22(774) DEBUG: ctl [io_listener.c:438]: handle_new_connect(): new connection (1) on /var/run/kamailio//kamailio_ctl 22(774) DEBUG: ctl [io_listener.c:499]: handle_stream_read(): bytes read: 29 22(774) INFO: app_python3s [apy3s_kemi.c:868]: app_python3s_rpc_reload(): marking for reload Python script file: /etc/kamailio/kamailio-basic-kemi-python3s.py (0 => 1) 22(774) DEBUG: ctl [io_listener.c:520]: handle_stream_read(): bytes processed: 29 22(774) DEBUG: ctl [io_listener.c:496]: handle_stream_read(): handle_stream read: eof on /var/run/kamailio//kamailio_ctl 22(774) DEBUG: ctl [../../core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del (0x748d1dfb83c0, 11, -1, 0x10) fd_no=2 called

1 0

nethelper module - need clarification on how to handle uri alias on location contacts.
by Benoît Panizzon 20 Dec '24

20 Dec '24

Hi Gang When a CPE behind nat registers, I have the alias added to the AOR contact. It has format ip~port~transport Let's say: bob@1.2.3.4:5060;alias=5.6.7.8~7777~1 On an invite to that CPE behind nat, the contact is retrieved from the location record and I assumed I could call handle_ruri_alias in the branch route to that CPE and this would sent the call to that ip port via transport in the alias. I observe that the port is not taken into account. The INVITE to bob is sent to ip 5.6.7.8 but to port 5060 instead of 7777 In the example config, handle_ruri_alias() is only used for in dialog requests (has_totag). Have I misunderstood how CPE behind NAT should be registered and that registration resolved? -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- 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 ______________________________________________________

1 0

Request for Feedback on an Installation Script for Kamailio (from Source)
by BROU STEPHANE FABIEN 19 Dec '24

19 Dec '24

Dear Kamailio Community, I hope this message finds you well. I have recently developed an install.sh script aimed at simplifying the process of installing Kamailio directly from source. My goal is to streamline the installation process while adhering to best practices for Kamailio deployment. I would greatly appreciate your feedback, suggestions, or any corrections to help improve the script’s robustness and ensure it aligns with the community’s standards. You can find the script in my GitHub repository: https://github.com/AL-CALL-LLC/KamailioBuilder.git Feel free to test it, share your thoughts, or open issues on GitHub for any recommendations or areas that need refinement. Thank you in advance for your time and valuable expertise. I am more than happy to provide further details or engage in discussions if needed. Best regards, Fabien Brou Developer

1 0

[print_dset(): no r-uri or branches] when working with async worker
by elhar.mohamed＠gmail.com 18 Dec '24

18 Dec '24

Hello, I'm getting this warning WARNING: <core> [core/dset.c:690]: print_dset(): no r-uri or branches when working with async worker. here is below the code used: request_route { if (is_method("INVITE")) { append_to_reply("Contact: <sip:+1234;myparam=test@$si:$sp>\r\n"); send_reply("302", "Moved Temporarily"); exit; } } Can you please help?

2 2

Multiple Branches and 3xx Status Codes
by Christian Berger 17 Dec '24

17 Dec '24

Hi, we have the following situation: Multiple UAs are subscribed to the proxy and get INVITEd via parallel forking. Now one of the UAs sends us a 302 status, we would like to handle this like a failure. So we'd like to CANCEL all the other branches, and forward the 302 status to the original INVITE. We have tried t_reply("302", "$T(reply_reason)") in the response, which almost solves this, however we cannot pass the required headers form the 302 response in it. BTW, could there have been a change in the default behavior of Kamailio? We think it used to "just work" in the past. Thank you very much Christian Berger -- Christian Berger - berger(a)sipgate.de Telefon: +49 (0)211-63 55 55-0 Telefax: +49 (0)211-63 55 55-22 sipgate GmbH - Gladbacher Str. 74 - 40219 Düsseldorf HRB Düsseldorf 39841 - Geschäftsführer: Thilo Salmon, Tim Mois Steuernummer: 106/5724/7147, Umsatzsteuer-ID: DE219349391 www.sipgate.de - www.sipgate.co.uk

3 3

Development for v6.0.x is frozen
by Daniel-Constantin Mierla 17 Dec '24

17 Dec '24

Hello, the formal notification that the development for the next major version 6.0.0 is now frozen. The focus has to be on testing the master branch. Also, the master branch should not get commits with new features till the branch 6.0 is created, expected to happen in 2-4 weeks, a matter of how testing goes on. Meanwhile, the commits with new features in the C code can be pushed to personal branches, new pull requests can still be done, but they will be merged after branching 6.0. Can still be done commits with documentation improvements, enhancements to related tools (e.g., kamctl, kamcmd), merging exiting pull requests at this moment, exporting missing KEMI functions and completing the functionality of the new modules added for 6.0. Once the branch 6.0 is created, new features can be pushed again to master branch as usual. From that moment, the v6.0.0 should be out very soon, time used for further testing but also preparing the release of packages. If someone is not sure if a commit brings a new feature, just make a pull request and it can be discussed there on github portal or via sr-dev mailing list. A summary of what is new in upcoming 6.0 is going to be built at: * https://www.kamailio.org/wikidocs/features/new-in-6.0.x/ Upgrade guidelines will be collected at: * https://www.kamailio.org/wikidocs/install/upgrade/5.8.x-to-6.0.0/ Everyone is more than welcome to contribute to the above wiki pages, especially to the upgrade guidelines, to help everyone else during the migration process from v5.8.x to 6.0.x. Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com

1 0

Freezing development for 6.0.x series
by Daniel-Constantin Mierla 16 Dec '24

16 Dec '24

Hello, I propose to aim freezing the development for 6.0.x series at the end of the 16th of December 2024 (Monday). New features that one wants to get in this release series have to be pushed to git repository or pull requests made for them. Afterwards usually follows a 4-6 weeks of testing till the first release 6.0.0. Unfreezing will happen earlier, after the first weeks of testing when the 6.0 branch will be created. Cheers, Daniel -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com

1 1

ims_diameter_server: $diameter_response PV is null in the event_route[diameter:response]
by Grotti, Daniel 15 Dec '24

15 Dec '24

Hi list, I'm using kamailio 5.8 and playing with the ims_diameter_server module, by sending an async diameter request and trying to catch the reponse. Following the documentation, I'm sending the request with: route[SEND_ACR] { route(PREPARE_ACR); diameter_request_async("3", "271", "$var(json_acr)"); } route[PREPARE_ACR] { # here I build the AVP list in JSON $var(json_acr) = "[{"avpCode":277,"vendorId":0,"Flags":64,"int32":0},{...},{...}]"; } event_route[diameter:response] { xlog("Reply to diameter request is: '$diameter_response'\n"); } The ACR request is successfully sent and the the server is replying with ACA. The list of AVP are properly parsed, but when I enter the event_route to print the response, I get the $diameter_response = 'null': 2024-12-11T10:52:39.192951872+00:00 stderr F 11(19) DEBUG: cdp [worker.c:374]: worker_process(): worker_process(): [2] got task Q(2/2) 2024-12-11T10:52:39.193026280+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP((nil) < 0x7ff827633810 >0x7ff8276338c0);code=263,flags=40; 2024-12-11T10:52:39.193026280+00:00 stderr F DataType=1;VendorID=0;DataLen=52; 2024-12-11T10:52:39.193026280+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff827633810 < 0x7ff8276338c0 >0x7ff827633970);code=268,flags=40; 2024-12-11T10:52:39.193026280+00:00 stderr F DataType=3;VendorID=0;DataLen=4; 2024-12-11T10:52:39.193026280+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff8276338c0 < 0x7ff827633970 >0x7ff827633a20);code=264,flags=40; 2024-12-11T10:52:39.193026280+00:00 stderr F DataType=1;VendorID=0;DataLen=37; 2024-12-11T10:52:39.193026280+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff827633970 < 0x7ff827633a20 >0x7ff8276340b0);code=296,flags=40; 2024-12-11T10:52:39.193026280+00:00 stderr F DataType=1;VendorID=0;DataLen=33; 2024-12-11T10:52:39.193124627+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff827633a20 < 0x7ff8276340b0 >0x7ff827634160);code=259,flags=40; 2024-12-11T10:52:39.193124627+00:00 stderr F DataType=0;VendorID=0;DataLen=4; 2024-12-11T10:52:39.193286132+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff8276340b0 < 0x7ff827634160 >0x7ff827634210);code=480,flags=40; 2024-12-11T10:52:39.193286132+00:00 stderr F DataType=0;VendorID=0;DataLen=4; 2024-12-11T10:52:39.193286132+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff827634160 < 0x7ff827634210 >0x7ff8276342c0);code=485,flags=40; 2024-12-11T10:52:39.193286132+00:00 stderr F DataType=0;VendorID=0;DataLen=4; 2024-12-11T10:52:39.193286132+00:00 stderr F 11(19) DEBUG: ims_diameter_server [avp_helper.c:60]: avp2json(): AVP(0x7ff827634210 < 0x7ff8276342c0 >(nil));code=85,flags=40; 2024-12-11T10:52:39.193286132+00:00 stderr F DataType=0;VendorID=0;DataLen=4; 2024-12-11T10:52:39.193612877+00:00 stderr F 11(19) INFO: <script>: [event_route]: Reply to diameter request is: '<null>' Is there something I miss to set/configure? Thanks, Daniel Daniel Grotti Development Team Leader, Private 5G daniel.grotti(a)hpe.com<mailto:daniel.grotti@hpe.com> Hewlett Packard Enterprise HPE.com [cid:803b85f7-01fe-4c9c-a069-74d14a9ea122]

3 9

How to remove rr param on a reply?
by Benoît Panizzon 13 Dec '24

13 Dec '24

Hi Is there a way to remove an param from the top most rr header? I add a rr param towards the B CPE to store some information which is sent back on the rr header of the reply from B. So far this is what is intended and I also get this param in subsequent route headers from messages created by B and as the route header are remove towards A, this works fine. Unfortunately, in a case of a reply, the parameter is passed to A which is then sending back the param in the route header which would make it somehow complicated to figure out which side sent that parameter. I'm only interested if sent from B. So I wonder, is there a way to delete a rr param on replies to make sure I don't get it back in the ACK to the reply? -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- 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 ______________________________________________________

3 4

slot hongkong terbaik
by Womkevintanuwijaya＠gmail.com 13 Dec '24

13 Dec '24

<a href="https://slothongkong.pro/">slot hongkong</a> The best information from the world's largest number one blog!

1 0

registrar / usrloc / tm => 'load balanced' serial forking?
by Benoit Panizzon 13 Dec '24

13 Dec '24

Hi List With the dispatcher module, you can use different ways of load balanced and weighted serial or parallel forking. Is there a corresponding way to achieve load balanced serial forking to a destination set loaded from registered locations? Use case: Customer with a high availability set-up has two redundant PBX registered to the same AoR. Calls can not be sent in parallel as this would generate two concurrent calls to the end device but call should be distributed evenly between the two contacts registered with that AoR. 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 ______________________________________________________

3 8

HTTP_CLIENT timeout
by Sergio Charrua 13 Dec '24

13 Dec '24

Hello all! For a STSH project, kamailio is making HTTP requests to a middleware (REST API) using HTTP_CLIENT module. I have set the parameter "timeout" to 2 second, but this increases PDD to too high levels, so I have set it to 1 second. Problem is that 1sec is also too high! The parameter only accepts integer values, so no way to set this to 0.5sec. I thought of having a way for kamailio to be aware that HTTP node #1 is down, so next request it will use HTTP node #2 instead. And once in a while, say, every 60 seconds, kamailio would check status of HTTP node #1 and, if OK, then it will switch back to HTTP node #1 and failover to node #2 when required. The HTTP_CLIENT, as far as I know, doesn't do that. So the question is: what would be the best approach to have this feature on Kamailio? i thought about using HTable and have a flag with value of the HTTP connection to use by default. At worst, only the 1st failover request would take 1 or 2 seconds to timeout....then the subsequent HTTP requests would use node #2. Any ideas? Atenciosamente / Kind Regards / Cordialement / Un saludo, *Sérgio Charrua*

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How to inspect/dump a stacked xavp? / How to stack two xavp on each other?
by Benoit Panizzon 10 Dec '24

10 Dec '24

Hi List I'm trying to inspect the content of the $xavp(tm_contacts) to figure out how t_load_contacts exactly behaves when called multiple times. $var(k) = 0; while ($xavp(tm_contacts[$var(k)]) != $null) { $var(out) = "nothing"; xavp_params_implode("tm_contacts[$var(k)]", "$var(out)"); xlog("L_INFO", "$cfg(route): tm_contacts idx: $var(k) => $var(out)\n"); $var(k) = $var(k) + 1; } My stack contains multiple entries. Unfortunately I struggle to access the lower entries. xavp_params_implode("tm_contacts[$var(k)]", "$var(out)"); does nothing when $var(k) > 0 What is the best way to dump a complete xavp stack? I suspect t_load_contacts does flush the complete stack. Is there a way to stack an xavp on top of another one? Something like: xavp_rm("contact_stack"); # Initialize Stack lookup("location", "sip:alice@example.com"); t_load_contacts(0); $xavp(contact_stack) = $xavp(tm_contacts); lookup("location", "sip:bob@example.com"); t_load_contacts(0); $xavp(contact_stack) = $xavp(tm_contacts); # contact_stack now contains alice + bob lookup("location", "sip:carlie@example.com"); t_load_contacts(0); # $xavp(tm_contacts) now contains only charlie. $xavp(tm_contacts) = $xavp(contact_stack); # $xavp(tm_contacts) now contains only alice, bob + charlie. t_next_contacts(); # Push contacts to destination list creating branches. t_relay(); # Invite all contacts 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 ______________________________________________________

6 10

segmentation fault when assigning xavp to another xavp (trying to stack them)
by Benoit Panizzon 10 Dec '24

10 Dec '24

Hi version: kamailio 5.7.6 (x86_64/linux) on Ubuntu from the: http://deb.kamailio.org/kamailio57 repository AOR alice has 4 contacts with q=0.5 AOR bob has 1 contact with q=0.5 I can reproduce a crash with this code snipplet: xavp_rm("contact_stack"); # Make sure XAVP does not exist. lookup("location", "sip:alice@example.com"); t_load_contacts(0); # after this, $xavp(tm_contacts) has four elements $xavp(contact_stack) = $xavp(tm_contacts); # Store the four elements on my stack # Verify, $xavp(contact_stack) now has four elements, copy successfull. lookup("location", "sip:bob@example.com"); # after this, $xavp(tm_contacts) has one element $xavp(tm_contacts) = $xavp(contact_stack); # Append the four previously saved contact with the one in $xavp(tm_contacts) if (!t_next_contacts()) { xlog("L_INFO", "$cfg(route): ERROR NO CONTACTS LOADED \n"); sl_send_reply("500", "Server Internal Error - Cannot get contacts"); } # Load contacts into destination set to parallel fork to five contacts. => segmentation fault! Shall I open an issue on github or am I performing a forbidden action? I'm doing some more test to find out where exactly the crash occurs. I'm not sure if it happens when adding to tm_contacts of when calling t_next_contacts. 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 ______________________________________________________

2 1

uneven load distribution after gw goes down?
by David Villasmil 09 Dec '24

09 Dec '24

Hello guys, I'm seeing the dispatcher module used with ds_select_dst($avp(dsdst), "0") is distributing the calls to a failing gw, to the next available gw instead of distributing it. When a gw fails and has been marked as inactive, shouldn't it be taken out of the list and the list recomputed? is this not the case? Thanks all Regards, David Villasmil email: david.villasmil.work(a)gmail.com

2 2

Updated: Online devel meeting on matrix - 15:00 UTC, Dec 9, 2024
by Daniel-Constantin Mierla 09 Dec '24

09 Dec '24

Hello, we should consider an online devel meeting sometime soon to summarize what was done at (and still needs to be done after) devel meeting in Dusseldorf and plan a bit the targets for next major release 6.0. If considered useful, I propose Dec 9, 2024 (Monday) at 15:00UTC (16:00 Berlin/Paris/Madrid/Rome), but we can also look for other dates as well. Topics to be discussed can be added at: - https://github.com/kamailio/kamailio-wiki/blob/main/docs/devel/irc-meetings… Pull requests can be made by users without git access. Cheers, Daniel -- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

1 2

WS and rtpengine_manage
by Knserbrave 09 Dec '24

09 Dec '24

Hi Kamailio Community, When testing rtpengine_manage and websockets, I noticed that if the rtpengine table in the database is not used, a new websocket is created for every call for a given dialog. That is, when an INVITE is received, an offer is sent to rtpengine. When the 200 OK or 18[3|0] is received, an answer is sent. However, the WS identifier often changes and as a result the request is not sent over the same websocket. This is problematic particularly when using FQDNs in the Kamailio configuration. When a load balancer is used between Kamailio and rtpengine, the answer may arrive at a different rtpengine in the cluster. After tracing through the source, I could not find a configuration parameter or set of triggers that I could manipulate to fix this. It leads me to believe it is only possible to reuse the websocket when the rtpengine table is used. Does anybody have more experience than I in this area that may be able to point me in the right direction, making load balancers for rtpengine_manage calls possible?

3 2

Potential Bug in Kamailio: Base64 Decode Transformation Not Working in Lua but Works in kamailio.cfg
by Dirk Brouwers | CM.com 28 Nov '24

28 Nov '24

Dear Kamailio Developers, I am writing to report a potential bug in Kamailio's handling of base64 decoding when using the Lua scripting interface (app_lua). It appears that base64 decoding behaves inconsistently between Lua scripts and kamailio.cfg. When using `$(var(encoded_json){s.decode.base64t})` in kamailio.cfg, where $var(encoded_json) contains the encoded base64 string: `eyJmb28iOiJiYXIifQ` it decodes to the correct `{"foo":"bar"}`. But when using the same transformation in Lua `KSR.xlog.xinfo("Decoded in Lua: ".. KSR.pv.get("$(var(encoded_json){s.decode.base64t})"))` it logs a corrupted encoded base64 string: `Decoded in Lua: ..]..#035z{b.?...#036..-....` Thank you in advance for looking into this issue. Please let me know if you need additional details or test cases. Kind regards, Dbrcm

3 4

"Intermittent Issue: Kamailio Presence Server Not Generating NOTIFY Packets"
by satyaprakash ch 27 Nov '24

27 Nov '24

Hi We have FreeSWITCH and Kamailio presence servers set up. FreeSWITCH sends XML RPC messages to the Kamailio presence servers for PUBLISH operations, and we receive 200 OK responses in return. These responses include the SIP-ETag and Expires headers. However, the Kamailio presence server is not consistently generating NOTIFY packets. This issue seems to occur randomly. Can you please suggest this for presence servers. Thank you in advance.

1 0

record_route() adds empty route header if enable_double_rr is 1
by Benoit Panizzon 26 Nov '24

26 Nov '24

Hi Gang How is record_route() determining if it needs to add two RR Header? Kamailio 5.8.4 I'm attempting to perform route header hiding by by rebuilding some of the topos functionality with perl. So towards the CPE I'm removing all existing RR header and want to replace them with one header containing an attribute which the CPE is then sending back and allows me to restore the Route header. But I came across an issue which an empty RR header being created with this (simplified) script: modparam("rr", "enable_double_rr", 1) perl_exec("hide_route"); # Stores Route-Set and sets $avp(rrattr) as id remove_hf("Record-Route"); msg_apply_changes(); loose_route(); # Required for record_route()? add_rr_param(";rr=$avp(rrattr)"); # Add Param to identify saved route set record_route(); I end up with: Record-Route: <sip:;r2=on;lr;rr=id007> Record-Route: <sip:157.161.x.x;r2=on;lr;rr=id007> The first header missing the IP address, the message being dropped by the CPE There is no transport change. If I set enable_double_rr to 0 only the 2nd RR header is created and this works as expected but I am not sure if some situations would need double RR. What causes the double RR to be created in my case? 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 ______________________________________________________

2 1

app_perl add/remove HF?
by Benoît Panizzon 22 Nov '24

22 Nov '24

Hi List I'm looking into the perl module. Am I right, that I can not add or remove HF from an app_perl subroutine? I would need to pass an AVP from perl to tell Kamailio what to do? Goal is an attempt to re-build part of the topos functionality in perl but only handling RR and Route Header only on one leg, not on both. -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- 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 ______________________________________________________

1 0

tcp_accept_haproxy option
by Wolter Eldering 22 Nov '24

22 Nov '24

Hi, I noticed that if I enable tcp_accept_haproxy kamailio still can accept connections without the PROXY-protocol header. The documentation on the wiki has the following note: "Please note that enabling this option will reject any inbound TCP connection that does not conform to the PROXY-protocol spec." https://www.kamailio.org/wiki/cookbooks/devel/core#tcp_accept_haproxy This could be true up until a specific version of kamalio but from 5.7.4+ this limitation is seems to be removed. Enabling tcp_accept_haproxy is breaking the outbound/rr module because it con’t find the socket based on the address and port from the flow token. The flow tokens created by a REGISTER on a connection without a PROXY header can be used. Flow tokens created from a connection with PROXY-protocol header will fail with "cannot find socket from flow-token” once loose_route is invoked. loose.c:561 /* First, force the local socket */ si = find_si(&rcv->dst_ip, rcv->dst_port, rcv->proto); if(si) set_force_socket(_m, si); else { LM_INFO("cannot find socket from flow-token\n"); return -1; } I’m not sure if the address and/or port values stored in the flow token are incorrect or the problem lies in the matiching in find_is(…). Wolter

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