[SR-Users] OPTION pings with dispatcher to asterisk box

Joel Serrano joel at textplus.com
Sat Dec 14 03:24:21 CET 2019


Hey Karsten,

I'm using that same modparam and it's working as expected. My example:

modparam("dispatcher", "ds_ping_reply_codes",
"class=2;code=403;code=488;code=405;class=3")

I believe the problem is that you are using a comma "," as separator, and
the correct separator is a semi-colon ";"???

BTW (offtopic), to make Asterisk answer with a 200 OK, you can do the
following:

Add to extensions.conf...

[default]
exten => s,1,Wait(1)
same => n,Hangup

This will make asterisk respond with a 200OK instead of a 404 Not Found.
This "default" is dependent on the context= parameter in sip.conf, if you
have changed it, you will have to name the extension accordingly. And
lastly, AFAIR you don't need the wait(1) and probably can do the hangup()
directly, I needed it for different reasons, give it a try.

This works for OPTIONS sent to a sip:IP:Port address, if you are using a
monitoring system or cli tool or similar that sends OPTIONS to
sip:something at ip:port, then the following dialplan works (I'll use "nagios"
as an example: sip:nagios at X.X.X.X:5060) :

[default]
exten => nagios,1,Wait(1)
same => n,Hangup

You can combine both if you have both kinds:

[default]
exten => s,1,Wait(1)
same => n,Hangup
exten => nagios,1,Wait(1)
same => n,Hangup

etc....


Hope this helps!

Joel.





On Fri, Dec 13, 2019 at 8:35 AM Karsten Horsmann <khorsmann at gmail.com>
wrote:

> Hello all!
>
> i am using kamailio 5.3.1-4 on CentOS and i am using dispatcher to ping
> his targets.
> Now i have someone with asterisk that answers with 401 or 404 (depends on
> asterisk version).
>
> So i tried  code=401;code=404 as aditional attrs. Seems not to work.
> Also i tired to change the modparam from class=2 to this:
>   modparam("dispatcher", "ds_ping_reply_codes",
> "class=2,code=401,code=404")
>
> Is that a "bug" or a hidden feature, or i missed something?
>
> Btw - Have a nice weekend!
>
> SELECT * FROM dispatcher WHERE id=1 \G
> *************************** 1. row ***************************
>          id: 1
>       setid: 1100
> destination: sip:SOMEWHERE;transport=tls
>       flags: 0
>    priority: 0
>       attrs:
> socket=tls:MY.IP.AD.RR:5061;ping_from=sip:MY.SIP.DOMAIN;code=401;code=404
> description: UNTRUSTED
>
>
>
>         "SET":  {
>           "ID": 1100,
>           "TARGETS":  [{
>               "DEST": {
>                 "URI":  "sip:SOMEWHERE;transport=tls",
>                 "FLAGS":  "IP",
>                 "PRIORITY": 0,
>                 "ATTRS":  {
>                   "BODY":
> "socket=tls:MY.IP.AD.RR:5061;ping_from=sip:MY.SIP.DOMAIN;code=401;code=404",
>                   "DUID": "",
>                   "MAXLOAD":  0,
>                   "WEIGHT": 0,
>                   "RWEIGHT":  0,
>                   "SOCKET": "tls:MY.SIP.DOMAIN:5061"
>                 },
>                 "LATENCY":  {
>                   "AVG":  48768.816406,
>                   "STD":  139490.953125,
>                   "EST":  43359.566406,
>                   "MAX":  568876,
>                   "TIMEOUT":  8
>                 }
>               }
>             }]
>         }
>       }]
>
> #!ifdef WITH_MYSQL
> modparam("dispatcher", "db_url", "DBURL")
> modparam("dispatcher", "table_name", "dispatcher")
> #!endif
> #!ifndef WITH_MYSQL
> modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.list")
> #!endif
> modparam("dispatcher", "ds_ping_method", "OPTIONS")
> modparam("dispatcher", "ds_ping_from", "<sip:ping at FANCY-COMPANY-WEBNAME>")
> modparam("dispatcher", "ds_ping_interval", 30)
> modparam("dispatcher", "ds_probing_mode", 1)
> modparam("dispatcher", "ds_probing_threshold", 2)
> modparam("dispatcher", "setid_pvname", "$var(setid)")
> modparam("dispatcher", "attrs_pvname", "$var(attrs)")
> modparam("dispatcher", "ds_ping_reply_codes", "class=2,code=401,code=404")
> modparam("dispatcher", "ds_ping_latency_stats", 1)
>
>
>
> https://community.asterisk.org/t/asterisk-responds-with-404-to-options-even-when-an-endpoint-is-matched/76238
>
>
>
>
> Dec 13 17:25:46 siptrunk3 /usr/sbin/kamailio[25115]: INFO: <script>:
> Sending message
> 'OPTIONS sip:SOMEWHERE;transport=tls SIP/2.0
> Via: SIP/2.0/TLS
> MY.IP.AD.RR:5061;branch=z9hG4bK2527.825671c0000000000000000000000000.0
> To: <sip:SOMEWHERE;transport=tls>
> From: <sip:MY.SIP.DOMAIN>;tag=f9bf2579cb456ea8d260d4aabc8248ef-9ca844ad
> CSeq: 10 OPTIONS
> Call-ID: 01cb6e272da7b0dd-25115 at MY.IP.AD.RR
> Max-Forwards: 70
> Content-Length: 0
> User-Agent: SBC-OS
>
> '
> Dec 13 17:25:46 siptrunk3 /usr/sbin/kamailio[25127]: INFO: <script>:
> Received message
> 'SIP/2.0 404 Not Found
> Via: SIP/2.0/TLS
> MY.IP.AD.RR:5061;branch=z9hG4bK2527.825671c0000000000000000000000000.0;received=MY.IP.AD.RR
> From: <sip:MY.SIP.DOMAIN>;tag=f9bf2579cb456ea8d260d4aabc8248ef-9ca844ad
> To: <sip:SOMEWHERE;transport=tls>;tag=as54adca41
> Call-ID: 01cb6e272da7b0dd-25115 at MY.IP.AD.RR
> CSeq: 10 OPTIONS
> Server: Asterisk PBX
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
> PUBLISH, MESSAGE
> Supported: replaces, timer
> Accept: application/sdp
> Content-Length: 0
>
> '
> --
> Cheers
> *Karsten Horsmann*
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
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