Hi all,
I'm trying to follow the Wireshark source code to find out exactly how
Wireshark determines that the layer above UDP or RTP is a T.38 payload.
I assume that a heuristic dissector is used since there is no known port for
T.38. So I started with packet-udp.c, and eventually got to the line below in
the function "decode_udp_ports()".
if (dissector_try_heuristic(heur_subdissector_list, next_tvb, pinfo, tree,
&hdtbl_entry, NULL))
However, when I looked at the definition of "dissector_try_heuristic()", I
don't see anything that would lead me to the code where the T.38 heuristic
dissector is called.
I also don't see any code that tests if a payload should be decoded as "T.38"
in packet-t38.c.
This is my long way of asking, where can I find the code that tests if the
payload is T.38, for both UDP and RTP packets?
Thank you.
Regards,Rayne
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