On Sun, Dec 15, 2002 at 09:06:21PM +0100, Hannes Gredler wrote:
> have there been efforts [or thoughts, or even some code ;-)]
> for putting together the TCP stream and expose it it higher-level
> dissectors [aka stateful decoding] ?

None that I know of in tcpdump.  Ethereal supports it, but it requires
both support in the TCP dissector and in subdissectors (as only they
know where higher-level PDUs begin and end).

> i am wondering about the feasibility of such an project,
> while still preserving tcpdumps small footprint;

Hmm.  Given that tcpdump is strictly one-pass, it's a bit of a simpler
problem than in Ethereal - it could discard saved data from previous TCP
segments once it hands the reassembled data to the higher-level
dissector.

Note, for what it's worth, that Ethereal currently doesn't handle
out-of-order TCP segment delivery.  I don't know how much more
complicated that'd make it.
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