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 Labs, the Security 6.\" Research Division of Network Associates, Inc. under DARPA/SPAWAR 7.\" contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS research 8.\" 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.\" 3. The names of the authors may not be used to endorse or promote 19.\" products derived from this software without specific prior written 20.\" permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" $FreeBSD$ 35.\" 36.Dd October 25, 2002 37.Os 38.Dt MACLABEL 7 39.Sh NAME 40.Nm maclabel 41.Nd Mandatory Access Control label format 42.Sh DESCRIPTION 43If Mandatory Access Control, or MAC, is enabled in the kernel, 44then in addition to the traditional credentials, 45each subject 46(typically a user or a socket) 47and object 48(file system object, socket, etc.\&) 49is given a 50.Em "MAC label" . 51The MAC label specifies the necessary subject-specific or 52object-specific information necessary for a MAC security policy 53.\" .Pq Xr mac 9 54to enforce access control on the subject/object. 55.Pp 56The format for a MAC label is defined as follows: 57.Pp 58.Sm off 59.D1 Ar policy1 No / Ar qualifier1 , policy2 No / Ar qualifier2 , No ... 60.Sm on 61.Pp 62A MAC label consists of a policy name, 63followed by a forward slash, 64followed by the subject or object's qualifier, 65optionally followed by a comma and one or more additional policy labels. 66For example: 67.Bd -literal -offset indent 68biba/low(low-low) 69biba/high(low-high),mls/equal(equal-equal),partition/0 70.Ed 71.Sh SEE ALSO 72.Xr mac 3 , 73.Xr posix1e 3 , 74.Xr mac_biba 4 , 75.Xr mac_bsdextended 4 , 76.Xr mac_ifoff 4 , 77.Xr mac_mls 4 , 78.Xr mac_none 4 , 79.Xr mac_partition 4 , 80.Xr mac_seeotheruids 4 , 81.Xr mac_test 4 , 82.Xr login.conf 5 , 83.Xr getfmac 8 , 84.Xr getpmac 8 , 85.Xr ifconfig 8 , 86.Xr setfmac 8 , 87.Xr setpmac 8 , 88.Xr mac 9 89.Sh HISTORY 90MAC first appeared in 91.Fx 5.0 . 92.Sh AUTHORS 93This software was contributed to the 94.Fx 95Project by NAI Labs, the Security Research Division of Network Associates 96Inc.\& under DARPA/SPAWAR contract N66001-01-C-8035 97.Pq Dq CBOSS , 98as part of the DARPA CHATS research program. 99