Wireshark-dev: Re: [Wireshark-dev] LUA development highlighting bytefield display with LUA
From: "Rowswell, Brent" <[email protected]>
Date: Wed, 18 Jun 2008 07:15:50 -0600
I've been trying to use this to get the subtrees to highlight, and so
far I can only get the first subtree to highlight correctly.  Here's the
syntax of what I'm trying.

local subtree = (tree:add(my_proto, tvb:range(), "my header")) -- works
local mytree = (subtree:add("TEST ", tvb:range(0x1), "STUFF")) --
doesn't highlight

I know that wireshark can highlight the subtrees just by looking at the
ethernet filters in the hex pane, but for some reason this isn't
highlighting there.  What should I do to get this to highlight.  The way
I figure this should work is the first one highlights the entire tvb,
which it does, and the second should highlight all but the first byte,
which it doesn't.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Luis EG
Sent: Tuesday, June 17, 2008 7:47 AM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] LUA development highlighting bytefield
display with LUA

Lua uses the very same API that dissectors use. For protocol tree items
created with Lua (when they are given a tvbRange) the bytes in the hex
dump pane get highlighted as with any other dissector.

On Mon, Jun 16, 2008 at 3:37 PM, Rowswell, Brent
<[email protected]> wrote:
> Hey there,
> I was wondering if there was a way to make my LUA dissector highlight 
> specific bytes in the bytefield display so that they stand out easily,

> such as the various portions of my header and attach these to the 
> subtrees that explain what they are.  I know something that does this 
> is already built into wireshark and that it works very well for 
> predefined message types, for instance it dissects TCP headers is a 
> very readable way so that you can actually see which bytes correspond 
> to the source and destination addresses.  I would like to do something

> similar on my own message type, so that the specific portions of my 
> message are easily readable after dissection.  Is there any way to do
this inside my LUA script?
> Brent Rowswell
> _______________________________________________
> Wireshark-dev mailing list
> [email protected]
> https://wireshark.org/mailman/listinfo/wireshark-dev

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