1.\" Copyright (c) 2002 Networks Associates Technology, Inc. 2.\" All rights reserved. 3.\" 4.\" This software was developed for the FreeBSD Project by Chris Costello 5.\" at Safeport Network Services and Network Associates Laboratories, the 6.\" Security Research Division of Network Associates, Inc. under 7.\" DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 8.\" DARPA CHATS research program. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" $FreeBSD$ 32.Dd DECEMBER 1, 2002 33.Os 34.Dt MAC_NONE 4 35.Sh NAME 36.Nm mac_none 37.Nd sample MAC policy module 38.Sh SYNOPSIS 39To compile the sample policy 40into your kernel, place the following lines in your kernel 41configuration file: 42.Cd "options MAC" 43.Cd "options MAC_NONE" 44.Pp 45Alternately, to load the sample module at boot time, place the following line 46in your kernel configuration file: 47.Cd "options MAC" 48.Pp 49and in 50.Xr loader.conf 5 : 51.Cd mac_none_load= Ns \&"YES" 52.Sh DESCRIPTION 53The 54.Nm 55policy module implements a sample MAC policy that has no effect on 56access control in the system. 57Each MAC entry point is a 58.Dq no-op . 59.Ss Label Format 60No labels are defined for 61.Nm . 62.Sh SEE ALSO 63.Xr mac 4 , 64.Xr mac_biba 4 , 65.Xr mac_bsdextended 4 , 66.Xr mac_ifoff 4 , 67.Xr mac_lomac 4 , 68.Xr mac_mls 4 , 69.Xr mac_partition 4 , 70.Xr mac_seeotheruids 4 , 71.Xr mac_test 4 , 72.Xr mac 9 73.Sh HISTORY 74The 75.Nm 76policy module first appeared in 77.Fx 5.0 78and was developed by the TrustedBSD Project. 79.Sh AUTHORS 80This software was contributed to the 81.Fx 82Project by Network Associates Labs, 83the Security Research Division of Network Associates 84Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), 85as part of the DARPA CHATS research program. 86.Sh BUGS 87See 88.Xr mac 9 89concerning appropriateness for production use. 90The TrustedBSD MAC Framework is considered experimental in 91.Fx . 92.Pp 93While the MAC Framework design is intended to support the containment of 94the root user, not all attack channels are currently protected by entry 95point checks. 96As such, MAC Framework policies should not be relied on, in isolation, 97to protect against a malicious privileged user. 98