From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: Where is DROP target implemented {Virus Scanned}
Date: Fri, 16 Apr 2004 18:39:31 +0200
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To: Qiang <qzhang@endeavorsystems.net>
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Qiang wrote:
> I am trying to read the Netfilter kernel, can't find where is the DROP
> Target implemented? Any hints which file to look at ? thanks!
> 

Interesting question, I didn't know either until just now ;)
DROP/ACCEPT/RETURN (and I think QUEUE) are handled by
ipt_standard_target (net/ipv4/netfilter/ip_tables.c).

Regards
Patrick