[Bro] Spicy and meta data

Robin Sommer robin at icir.org
Mon Mar 14 14:50:04 PDT 2016

On Mon, Mar 14, 2016 at 17:06 -0400, Troy Jordan wrote:

> Is this a  hypothetical example, or is there currently a mechanism in
> Spicy to insert layer-4 meta data into an application layer stream, as
> suggested in the Spicy tech report, p5:

Yes, that mechanism exists, see the
tests/binpac/synchronize/sync-at-mark.pac2 for an example: the
pac-driver command line in there specifies positions to mark, where
the second unit then re-synchronizes when encountering errors.

> " To implement that, the TCP dissector would insert marks into the input
> stream corresponding to packet boundaries for the HTTP dissector to skip
> ahead to. "

What's hypothetical here is the TCP dissector using the mechanism,
that's not implemented.


Robin Sommer * ICSI/LBNL * robin at icir.org * www.icir.org/robin

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