I am still struggling with this.
Is there any documentation on heur_dissector_add and where/how to call it?
Also I presume from Guy's posting I have to add my protocol into some
tables?
Hal
From: "sharon lin" <sharon.lin.1@xxxxxxxxx>
Reply-To: Developer support list for Wireshark
<wireshark-dev@xxxxxxxxxxxxx>
To: "Developer support list for Wireshark" <wireshark-dev@xxxxxxxxxxxxx>
Subject: Re: [Wireshark-dev] Define dissector port
Date: Tue, 16 Jan 2007 17:51:11 +0200
Add
heur_dissector_add("udp", dissect_fring, proto_fring);
heur_dissector_add("tcp", dissect_fring, proto_fring);
On 1/16/07, Hal Lander <hal_lander@xxxxxxxxxxx> wrote:
The word 'heuristic' only appears once in 'readme.developer', and although
I
have skimmed through the whole document I seem to have missed where it
tells
you how to make a dissector heuristic.
Can you be more specific about where there is an example?
Can plugins be heuristic dissectors?
Once a dissector is heuristic will it just look on all ports?
Hal
>From: Guy Harris <guy@xxxxxxxxxxxx>
>Reply-To: Developer support list for Wireshark
><wireshark-dev@xxxxxxxxxxxxx>
>To: Developer support list for Wireshark <wireshark-dev@xxxxxxxxxxxxx>
>Subject: Re: [Wireshark-dev] Define dissector port
>Date: Mon, 15 Jan 2007 10:37:39 -0800
>
>Hal Lander wrote:
> > Is there a way to get a dissector to run on all ports?
>
>A dissector that runs on all ports would have to be a heuristic
>dissector (otherwise, you wouldn't be able to dissect any TCP/UDP
>traffic except for traffic for your protocol).
>
>So the way you'd do that would be to have your dissector be able to look
>at a packet and determine whether it's a packet for your protocol or
>not, and use a check for that sort in your dissector. See
>doc/README.developer for information on how to make a heuristic
>dissector. The name of the heuristic dissector table for TCP is "tcp",
>and the table for UDP is "udp".
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