From owner-freebsd-net@FreeBSD.ORG  Sat Oct 18 00:58:47 2008
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Date: Fri, 17 Oct 2008 17:39:45 -0700
From: "Eugene M. Kim" <gene@nttmcl.com>
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Subject: Closing connection from an accept_filter(9)
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Hello,

Is it possible to close a connection from an accept filter, for example, 
in order to prevent an incoming connection with a malformed request body 
from ever reaching the userland?

Cheers,
Eugene