From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike-Ro-Chanel <mikerochanel@yahoo.it>
Subject: Re: Adding packet metadata
Date: Wed, 24 Mar 2004 08:38:09 +0100
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To: Henrik Nordstrom <hno@marasystems.com>
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>>I wanted to mark up packets with information as they pass thru the
>>system. Basically, I want to associate some data with a packet during
>>PREROUTING/raw (to read info prior to conntrack) and then get that
>>information back during PREROUTING/mangle.  Is there a module already
>>written which could perform this?
> 
> 
> MARK should be able to do this.
> 

An interesting question about MARK field in SKB structure is: Can I use 
all 32-bit of "nfmark" for adding metadata? Iptables front-end (from 
command line) seems to take mark value as a 8-bit number.

		Mike-Ro-Chanel