Wireshark-dev: Re: [Wireshark-dev] packet parsing question
From: "Piety, Timothy [USA]" <[email protected]>
Date: Thu, 29 May 2008 14:31:53 -0400
Okay. I did a quick read through the README.developers doc and didn't see anything that looked like it applied. I also took a look at the README.design and a couple of other README docs. I have been looking through code, but I am kind of stuck right now. I guess I was looking for an overview of the flow. I thought that might help "unstick" me.
 
Am I missing something or is this all there is? I do not think I have a "conversation" as described in the README.developer doc. What I have is a packet that I know the protocol and simply want wireshark to dissect it. Is it possible for me to have wireshark easily do this?
 
 
thanks,

________________________________

From: [email protected] on behalf of Luis EG Ontanon
Sent: Thu 5/29/2008 10:45 AM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] packet parsing question



You want to read doc/README.developer from the src tree.


On Thu, May 29, 2008 at 4:31 PM, Piety, Timothy [USA]
<[email protected]> wrote:
> Hi,
>
> I am trying to figure out how wireshark actually does teh dissection of a
> packet. I have a packet and I know the protocol, but do not have a parser
> for it. I would like to be able to give the packet to wireshark and have
> wireshark parse it then read the values back form the appropriate structure.
>
> I have been looking a the code and do not see where wireshark a determines
> what the protocol is and which specific dissector to call. I have been able
> to find out where it determines which file type the input file is. I
> have traced the code into a routine called call_dissector_through_handle in
> packet.c. This appears to call the specific dissector through
> dissector_handle funtion pointer. I cannot find where the dissector_handle
> is set.
>
> Am I on the right track? Any guidance would be appreciated.
>
> thanks,
>
> Tim
> _______________________________________________
> Wireshark-dev mailing list
> [email protected]
> http://www.wireshark.org/mailman/listinfo/wireshark-dev
>
>



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