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Date:      Mon, 12 Feb 2001 11:26:04 -0500 (EST)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Peter Wemm <peter@netplex.com.au>
Cc:        Warner Losh <imp@harmony.village.org>, Peter Pentchev <roam@orbitel.bg>, Dag-Erling Smorgrav <des@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/vm vm_zone.c vm_zone.h 
Message-ID:  <Pine.NEB.3.96L.1010212112307.87908P-100000@fledge.watson.org>
In-Reply-To: <200102121614.f1CGEhU51322@mobile.wemm.org>

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On Mon, 12 Feb 2001, Peter Wemm wrote:

> Warner Losh wrote:
> > In message <Pine.NEB.3.96L.1010122142028.19966D-100000@fledge.watson.org> Rob
>     ert Watson writes:
> > : appreciated.   (this will also make it easier for portable kernel
> > : monitoring tools to be written, and allow graphical monitoring tools to
> > : run with less privilege).
> > 
> > And generally make for a happier security officer team :-)
> 
> And an unhappier team of people dealing with kernel crashdumps. :-(
> 
> All this sysctl stuff is fine, but dont kill the crashdump reading code! 
> If -M or -N are specified then use the old way (and require root to be
> running it).  Without -M or -N, use sysctl. 

All patches submitted on the freebsd-audit mailing list to remove setgid
from top, systat, dmesg, etc, have maintained backwards compatibility by
using kmem when the -M or -N argument is provided, permitting them to
continue to work on system dumps -- and even on /dev/kmem, it just
requires that you run them as root now, since they won't be setgid kmem.
If you have a few minutes and want to verify that the new versions will
continue to work properly for you, and that you think they're implemented
right, the archives of -audit contain a number of relevant posts by Thomas
Moestl <tmoestl@gmx.net>.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Project
robert@fledge.watson.org      NAI Labs, Safeport Network Services




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