"Decode As" - adding payload decoding for the FLIP protocol

[Juha Siltanen <jsiltane () gmail com>]

Hello,

The FLIP protocol (implemented in packet-flip.c) works on top of Ethernet,
having type 0x8901 and adding its own headers plus payload. The FLIP headers
contain no indication of the payload type and it cannot be deduced from the
contents of the capture either. I would like to give the user an option to
decode the payload to the protocol of his choosing by using "Decode As". The
problem is that right-clicking and choosing "Decode As" only gives
link-level protocols, and I would like to decode the payload using
transport-level protocols (for example RTP).

So, how do I add the "Transport" tab into "Decode As" for FLIP, and how do I
add RTP into the possible choices? Which files should I read to enlighten
myself?

BR,
  Juha Siltanen

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