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.\" 33.Dd December 1, 2002 34.Dt MAC_TEST 4 35.Os 36.Sh NAME 37.Nm mac_test 38.Nd MAC framework testing policy 39.Sh SYNOPSIS 40To compile the testing policy 41into your kernel, place the following lines in your kernel 42configuration file: 43.Bd -ragged -offset indent 44.Cd "options MAC" 45.Cd "options MAC_TEST" 46.Ed 47.Pp 48Alternately, to load the testing module at boot time, place the following line 49in your kernel configuration file: 50.Bd -ragged -offset indent 51.Cd "options MAC" 52.Ed 53.Pp 54and in 55.Xr loader.conf 5 : 56.Bd -literal -offset indent 57mac_test_load="YES" 58.Ed 59.Sh DESCRIPTION 60The 61.Nm 62policy module implements a testing facility for the MAC framework. 63Among other things, 64.Nm 65will try to catch corrupt labels the system is attempting to destroy and 66drop to the debugger. 67Additionally, a set of statistics regarding the number of times various 68MAC framework entry points have been called is stored in the 69.Va security.mac.test 70.Xr sysctl 8 71tree. 72.Ss Label Format 73No labels are defined for 74.Nm . 75.Sh SEE ALSO 76.Xr mac 4 , 77.Xr mac_biba 4 , 78.Xr mac_bsdextended 4 , 79.Xr mac_ifoff 4 , 80.Xr mac_lomac 4 , 81.Xr mac_mls 4 , 82.Xr mac_none 4 , 83.Xr mac_partition 4 , 84.Xr mac_portacl 4 , 85.Xr mac_seeotheruids 4 , 86.Xr mac 9 87.Sh HISTORY 88The 89.Nm 90policy module first appeared in 91.Fx 5.0 92and was developed by the 93.Tn TrustedBSD 94Project. 95.Sh AUTHORS 96This software was contributed to the 97.Fx 98Project by Network Associates Labs, 99the Security Research Division of Network Associates 100Inc. 101under DARPA/SPAWAR contract N66001-01-C-8035 102.Pq Dq CBOSS , 103as part of the DARPA CHATS research program. 104.Sh BUGS 105See 106.Xr mac 9 107concerning appropriateness for production use. 108The 109.Tn TrustedBSD 110MAC Framework is considered experimental in 111.Fx . 112.Pp 113While the MAC Framework design is intended to support the containment of 114the root user, not all attack channels are currently protected by entry 115point checks. 116As such, MAC Framework policies should not be relied on, in isolation, 117to protect against a malicious privileged user. 118