[OpenSIPS-Users] HEPv3 siptrace to Homer v7 - "Trailing stray characters"

[Bogdan-Andrei Iancu]

Hi,

What is the exact OpenSIPS version you have (opensips -V) ?

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com

On 6/18/20 12:13 PM, solarmon wrote:
> Hi,
>
> I'm trying to set up siptrace to send HEPv3 packets to a Homer 7 setup.
>
> Currently this is not working and it seems the HEPv3 packets coming 
> from opensips is not being ingested for some reason. Using hepgen 
> (https://github.com/sipcapture/hepgen.js) to generate test HEPv3 
> traffic on the same opensips nodes is successful.
>
> When comparing both he captured opensips and hepgen generated HEPv3 
> packets I notice the following difference which might explain why the 
> opensips HEPv3 packets are not being ingested.
>
> I'm using the HEP dissector plugin for Wireshark from:
>
> https://github.com/sipcapture/hep-wireshark
>
> The opensips HEPv3 packet is decoded as HEPv3 by the dissector plugin, 
> but it gives a working about "Trailing stray characters" for the 
> packet. Inspecting the packet further I see that there is indeed extra 
> data at the end. For example, the for the HEPv3 packet for INVITE 
> there is the following data:
>
> .....70110F001-0000FA9B-5EEA5D1C-0000000E at ip.address
>
> (IP address sanitised)
>
> This seems to be the same value as for the Call-ID header:
>
> Call-ID: 0110F001-0000FA9B-5EEA5D1C-0000000E at ip.address
>
> I have the following config, which I pulled together from various 
> sources - so I'm not sure whether this is correct or causing this issue:
>
> ### HEP Capture
>
> #TCP Hep listener
> listen=hep_tcp:w.x.y.z:6060
> #UDP Hep listener
> listen=hep_udp:w.x.y.z:6060
>
> loadmodule "proto_hep.so"
> modparam("proto_hep", "hep_id", 
> "[homer]a.b.c.d:9060;transport=tcp;version=3;")
>
> #loadmodule "tls_mgm.so"
> #loadmodule "proto_tls.so"
> #modparam("proto_tls", "trace_destination", "homer")
> #modparam("proto_tls", "trace_filter_route", "trans_tracer")
>
> loadmodule "siptrace.so"
> modparam("siptrace", "trace_on", 1)
> modparam("siptrace", "trace_id", "[traceid]uri=hep:homer")
>
> ###
>
> and I'm call sip_trace() withing the main route{} function (just for 
> testing at the moment):
>
> sip_trace("traceid","M","sip");
>
> Why is opensips adding this extra data at the end of the HEPv3 packets 
> and is this expected/normal?
>
> If not expected/normal how should I change the opensips config to 
> resolve it.
>
> Thank you.
>
>
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