From owner-freebsd-net@FreeBSD.ORG  Fri Apr  7 16:36:16 2006
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
X-Original-To: freebsd-net@freebsd.org
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 6B01816A400
	for <freebsd-net@freebsd.org>; Fri,  7 Apr 2006 16:36:16 +0000 (UTC)
	(envelope-from cswiger@mac.com)
Received: from pi.codefab.com (pi.codefab.com [199.103.21.227])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 0AF2E43D48
	for <freebsd-net@freebsd.org>; Fri,  7 Apr 2006 16:36:15 +0000 (GMT)
	(envelope-from cswiger@mac.com)
Received: from localhost (localhost [127.0.0.1])
	by pi.codefab.com (Postfix) with ESMTP id 431DB5C8B;
	Fri,  7 Apr 2006 12:36:15 -0400 (EDT)
Received: from pi.codefab.com ([127.0.0.1])
	by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id 61677-07; Fri,  7 Apr 2006 12:36:14 -0400 (EDT)
Received: from [192.168.1.3] (pool-68-161-112-80.ny325.east.verizon.net
	[68.161.112.80])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by pi.codefab.com (Postfix) with ESMTP id 5A2E85C57;
	Fri,  7 Apr 2006 12:36:14 -0400 (EDT)
Message-ID: <443694FE.1090900@mac.com>
Date: Fri, 07 Apr 2006 12:36:14 -0400
From: Chuck Swiger <cswiger@mac.com>
User-Agent: Thunderbird 1.5 (Windows/20051201)
MIME-Version: 1.0
To: Amit Mondal <amit.freebsd@gmail.com>
References: <a6cf19a10604061736i6c9f8ea2p5a9dfbe4e85f1aa3@mail.gmail.com>
In-Reply-To: <a6cf19a10604061736i6c9f8ea2p5a9dfbe4e85f1aa3@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: amavisd-new at codefab.com
Cc: freebsd-net@freebsd.org
Subject: Re: freeBSD tcp enhancement
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 07 Apr 2006 16:36:16 -0000

Amit Mondal wrote:
> I am a newbie to freeBSD. I am trying to modify freeBSD tcp for some
> security ehancement. Could anyone pls point me to how/where to start or any
> suitable material/tutorial to start with.

The classic IPv4 code lies in /usr/src/sys/netinet, but see netinet6, 
netipsec, and even netgraph.

If you want to hack on a TCP/IP stack, have fun, but it's entirely possible 
that the problem you're trying to solve already has been....

-- 
-Chuck