Wireshark · Wireshark-dev: Re: [Wireshark-dev] Define dissector port

["Douglas Pratley" <Douglas.pratley@xxxxxxxxxx>]

Hi

I don't think there is (if I am wrong, please someone tell me!). I am
currently working on allowing the user to force the selection of the
next dissector using display filters (initially for TCP and UDP), which
I think would do what you want. You would use the display filter
"tcp.port" for all traffic with the TCP port set. I plan to allow the
control of this from the GUI (probably extensions to the "Decode As..."
dialog) and from Lua (if I can work out how to write the API extensions.

It is an interesting exercise...

I should have something ready within the next few weeks, but it will be
a largish patch and I don't know when the core developers would have
time to consider it given the current hectic activity.

Cheers

Doug

-----Original Message-----
From: wireshark-dev-bounces@xxxxxxxxxxxxx
[mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Hal Lander
Sent: 15 January 2007 16:21
To: wireshark-dev@xxxxxxxxxxxxx
Subject: Re: [Wireshark-dev] Define dissector port

Is there a way to get a dissector to run on all ports?

So far I have been explicitly adding it to a specific port e.g.
    dissector_add("tcp.port",1234,handle);

TIA
Hal

P.S. Guy thanks for answering an earlier post I did not reply because I
have 
been ill, I just use 'foo' as the protocol name because I am
experimenting 
with wireshark.



>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: Sun, 14 Jan 2007 02:12:51 -0800
>
>sharon lin wrote:
>
> > I would like that user of my dissector will define the port on which
the
> > protocol works on from the regular expression field
> >
> > for example myProtocol.port == 1000
>
>I don't see any regular expression there.
>
>The way dissectors that let the user define the port the protocol works
>on is by adding a protocol preference with the port number.  See, for
>example, epan/dissectors/packet-actrace.c.
>
>You could specify that from the command line with "-o
>myProtocol.port:1000", or from the GUI in Edit -> Preferences.
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