Wireshark-users: Re: [Wireshark-users] How do I go about creating a custompacket data decode
From: Gerald Combs <gerald@xxxxxxxxxxxxx>
Date: Wed, 21 Nov 2007 12:32:26 -0800
Owens, Neil wrote:
> Steve
> 
> It's for all UDP traffic on a specific port.  I'm currently on Windows
> XP, but if a flavour of Linux makes it easier, then so be it.

In that case, you'd probably want to make a copy of the packet data, XOR it, and
add the XORed data as a new data source for the packet.  The function
tacplus_decrypted_tvb_setup() in packet-tacacs.c provides a pretty good (and
well-commented) example of this.