From owner-p4-projects Wed Aug 14 7:39: 2 2002 Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id 9343337B401; Wed, 14 Aug 2002 07:38:57 -0700 (PDT) Delivered-To: perforce@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 38DF337B400 for ; Wed, 14 Aug 2002 07:38:57 -0700 (PDT) Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id E729A43E6A for ; Wed, 14 Aug 2002 07:38:56 -0700 (PDT) (envelope-from bb+lists.freebsd.perforce@cyrus.watson.org) Received: from freefall.freebsd.org (perforce@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.4/8.12.4) with ESMTP id g7EEcuJU071111 for ; Wed, 14 Aug 2002 07:38:56 -0700 (PDT) (envelope-from bb+lists.freebsd.perforce@cyrus.watson.org) Received: (from perforce@localhost) by freefall.freebsd.org (8.12.4/8.12.4/Submit) id g7EEcuFO071108 for perforce@freebsd.org; Wed, 14 Aug 2002 07:38:56 -0700 (PDT) Date: Wed, 14 Aug 2002 07:38:56 -0700 (PDT) Message-Id: <200208141438.g7EEcuFO071108@freefall.freebsd.org> X-Authentication-Warning: freefall.freebsd.org: perforce set sender to bb+lists.freebsd.perforce@cyrus.watson.org using -f From: Robert Watson Subject: PERFORCE change 15966 for review To: Perforce Change Reviews Sender: owner-p4-projects@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG http://people.freebsd.org/~peter/p4db/chv.cgi?CH=15966 Change 15966 by rwatson@rwatson_tislabs on 2002/08/14 07:37:57 Updates to the MAC notes, including commenting on the fact that running X11 with MLS can result in problems, as kernel memory is currently labeled as mls/high by default, but user processes run at mls/low by default. Affected files ... .. //depot/projects/trustedbsd/mac/MACREADME#21 edit Differences ... ==== //depot/projects/trustedbsd/mac/MACREADME#21 (text+ko) ==== @@ -92,7 +92,8 @@ of reasons. Unlike the other components of the kernel NFS client, it doesn't use the mount-time credential to authorize out-going RPC delivery, uses an odd selection of kernel credential to act on the -FIFO, etc. +FIFO, etc. (This is now largely fixed due to moving VFS protections +higher in the stack) Things not to do with MAC ------------------------- @@ -116,7 +117,12 @@ Don't use netboot without setting the loader.conf setting to indicate to Biba which interface is trusted. Otherwise, the NFS client will -fail as it cannot send packets via the interface. (This may be broken). +fail as it cannot send packets via the interface. + +Don't expect X11 to work with MLS enabled if you try to run X11 at +mls/low (the default). This won't work because XFree86 expects to +be able to map video memory, and by default video memory is labeled +as mls/high so as to be conservative. Things that look like they should work but don't ------------------------------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe p4-projects" in the body of the message