RE: [Ethereal-dev] Desegmentation atop TCP problem / TCP reassembly and desegment_offset = 0

["Jeff Foster" <jfoste@xxxxxxxxxxxx>]

From: ronnie sahlberg [mailto:ronniesahlberg@xxxxxxxxx]
Sent: Wednesday, September 01, 2004 9:09 AM

> >I don't like that I have to manipulate the pinfo structures directly to
> >request the desegmentation. I would rather call a function to request the
> >data so the details are hidden from me and changes to the desegmentation
> >code don't impact my code. I would like to see a function i.e.
> >desegment_request_data( pinfo, offset, length); that would make the changes
> >to the pinfo->desegment_len and pinfo->dsegment_offset.
> 
> That is exactly what tcp_dissect_pdus() will do for you.
> Please grep for that function and look at the examples in the various callers.
> It is very easy to use.

<deleted/>

I looked at tcp_dissect_pdus and even tried implimenting with it. But since I
don't know the PDU size, because of the null terminated strings, I couldn't 
come up with a good method to determine the length of the PDU without reading
the entire PDU.  As such the tcp_dissect_pdus doesn't seem to fit very well.
I thought it was easier to just dissect the PDU and use the pinfo->desegment...
method. 

Am I missing something?

Jeff F>



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