Re: composite tvbuffs

["Scott Mueller" <smueller () osisoft com>]

Hi Stephen,

Section 2.7.2 is basically about doing the work that tcp_dissect_pdus
does, and that is certainly an option. Large messages composed in the
way I described with my protocol (which uses TCP) are a special case; I
didn't want to re-work everything for this. Composite tvbuffs sounded
like a good way to deal with this. If they don't work, I'll have to bite
the bullet and do the work.

Thanks again,

Best regards,

M. Scott Mueller

-----Original Message-----
From: wireshark-dev-bounces () wireshark org
[mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Stephen Fisher
Sent: Friday, September 24, 2010 10:17 PM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] composite tvbuffs

On Fri, Sep 24, 2010 at 05:33:25PM -0700, Scott Mueller wrote:

> Thank you for your response. I'm working with a multi-layered protocol

> that relies on TCP/IP, and in some cases the contiguous payload that I

> need to work with is spread out across several well-formed messages.

Have you looked at the reassembly information in README.developer, 
specifically section 2.7.2, "Modifying the pinfo struct" ?  That may do 
the job for you, especially if the messages span multiple TCP segments.

The preceding section about using tcp_dissect_pdus could work too, but 
it's geared toward simple TCP reassembly.



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