Manual Pages  — MACLABEL

maclabel – Mandatory Access Control label format

DESCRIPTION SEE ALSO HISTORY AUTHORS

If Mandatory Access Control, or MAC, is enabled in the kernel, then in addition to the traditional credentials, each subject (typically a user or a socket) and object (file system object, socket, etc.amp;) is given a MAC label. The MAC label specifies the necessary subject-specific or object-specific information necessary for a MAC security policy to enforce access control on the subject/object.

The format for a MAC label is defined as follows:

A MAC label consists of a policy name, followed by a forward slash, followed by the subject or object's qualifier, optionally followed by a comma and one or more additional policy labels. For example:

biba/low(low-low)
biba/high(low-high),mls/equal(equal-equal),partition/0

MAC first appeared in FreeBSD 5.0 .

This software was contributed to the FreeBSD Project by NAI Labs, the Security Research Division of Network Associates Inc.amp; under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS research program.