From owner-freebsd-net@FreeBSD.ORG  Fri Mar  4 16:35:53 2005
Return-Path: <owner-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 A846C16A4CE
	for <freebsd-net@freebsd.org>; Fri,  4 Mar 2005 16:35:53 +0000 (GMT)
Received: from postfix3-1.free.fr (postfix3-1.free.fr [213.228.0.44])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 3EAB943D31
	for <freebsd-net@freebsd.org>; Fri,  4 Mar 2005 16:35:53 +0000 (GMT)
	(envelope-from tataz@tataz.chchile.org)
Received: from tatooine.tataz.chchile.org
	(vol75-8-82-233-239-98.fbx.proxad.net [82.233.239.98])
	by postfix3-1.free.fr (Postfix) with ESMTP id 03AE51734F7;
	Fri,  4 Mar 2005 17:35:51 +0100 (CET)
Received: by tatooine.tataz.chchile.org (Postfix, from userid 1000)
	id EFCDF407C; Fri,  4 Mar 2005 17:35:07 +0100 (CET)
Date: Fri, 4 Mar 2005 17:35:07 +0100
From: Jeremie Le Hen <jeremie@le-hen.org>
To: bachi@te-clan.ch
Message-ID: <20050304163507.GB15329@obiwan.tataz.chchile.org>
References: <37e13166050304080715525d7e@mail.gmail.com>
	<29347.193.134.254.115.1109953369.squirrel@webmail.te-clan.ch>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <29347.193.134.254.115.1109953369.squirrel@webmail.te-clan.ch>
User-Agent: Mutt/1.5.7i
cc: opensource.enthousiat@gmail.com
cc: freebsd-net@freebsd.org
Subject: Re: generic network protocols parser ?
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.1
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, 04 Mar 2005 16:35:53 -0000

Hi,

please, avoid top-posting :-).

> i'm not an expert, but you can attach to bpf (berkeley packet filter)

With a correct filter, bpf(4) will help him to get only RSVP packets.
But Aziz is more likely looking for accessing RSVP header fields
individually, a task bpf(4) can't help for.  A manually parse will be
needed, although he succeeds in re-using the Ethereal plug'in, but I
don't know if it is feasible.

Regards,
-- 
Jeremie Le Hen
jeremie at le-hen dot org