1 .\" Copyright (c) 2002, 2003 Networks Associates Technology, Inc.
2 .\" All rights reserved.
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.
10 .\" Redistribution and use in source and binary forms, with or without
11 .\" modification, are permitted provided that the following conditions
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.
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
38 .Nd "null MAC policy module"
40 To compile the null policy
41 into your kernel, place the following lines in your kernel
43 .Bd -ragged -offset indent
45 .Cd "options MAC_NONE"
48 Alternately, to load the none module at boot time, place the following line
49 in your kernel configuration file:
50 .Bd -ragged -offset indent
56 .Bd -literal -offset indent
62 policy module implements a none MAC policy that has no effect on
63 access control in the system.
66 none of the MAC entry points are defined.
68 No labels are defined for
73 .Xr mac_bsdextended 4 ,
79 .Xr mac_seeotheruids 4 ,
86 policy module first appeared in
88 and was developed by the
92 This software was contributed to the
94 Project by Network Associates Labs,
95 the Security Research Division of Network Associates
97 under DARPA/SPAWAR contract N66001-01-C-8035
99 as part of the DARPA CHATS research program.
101 While the MAC Framework design is intended to support the containment of
102 the root user, not all attack channels are currently protected by entry
104 As such, MAC Framework policies should not be relied on, in isolation,
105 to protect against a malicious privileged user.