From owner-freebsd-current@FreeBSD.ORG  Tue Apr 15 05:54:48 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9757E37B404
	for <current@FreeBSD.org>; Tue, 15 Apr 2003 05:54:48 -0700 (PDT)
Received: from fledge.watson.org (fledge.watson.org [204.156.12.50])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A9B6A43FB1
	for <current@FreeBSD.org>; Tue, 15 Apr 2003 05:54:47 -0700 (PDT)
	(envelope-from robert@fledge.watson.org)
Received: from fledge.watson.org (fledge.pr.watson.org [192.0.2.3])
	by fledge.watson.org (8.12.9/8.12.9) with SMTP id h3FCt5rE060528;
	Tue, 15 Apr 2003 08:55:05 -0400 (EDT)
	(envelope-from robert@fledge.watson.org)
Date: Tue, 15 Apr 2003 08:55:04 -0400 (EDT)
From: Robert Watson <rwatson@FreeBSD.org>
X-Sender: robert@fledge.watson.org
To: "Ilmar S. Habibulin" <ilmar@watson.org>
In-Reply-To: <20030415044318.D92160@fledge.watson.org>
Message-ID: <Pine.NEB.3.96L.1030415085343.59471J-100000@fledge.watson.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
cc: current@FreeBSD.org
Subject: Re: m_pkthdr.label now moved to m_tag
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Apr 2003 12:54:48 -0000


On Tue, 15 Apr 2003, Ilmar S. Habibulin wrote:

> On Mon, 14 Apr 2003, Robert Watson wrote:
> 
> > Incidentally, this should also fix a number of WITNESS warnings when
> > running with labeled MAC policies because it cleans up some bugs in the
> > mapping of mbuf allocator flags to malloc flags, and also more cleanly
> > avoids blocking allocations during certain classes of mbuf head copies.
> 
> So now it is possible to implement IP packet labeling? Or this feature
> would not be included? 

This change is in the implementation details regarding how internalized
labels are stamped onto m_tag's -- it doesn't make any changes to where
those labels come from.  As with before, I think the three most useful
approaches to take are CIPSO, IPsec, and firewall-derived labels, none of
which are implemented in the base system or MAC tree currently. 

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Network Associates Laboratories