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maclabel(7)

DESCRIPTION

     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.) 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:

	   policy1/qualifier1,policy2/qualifier2,...

     A MAC label consists of a policy name, followed by a forward slash, fol-
     lowed 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

SEE ALSO

     mac(3), posix1e(3), mac_biba(4), mac_bsdextended(4), mac_ifoff(4),
     mac_mls(4), mac_none(4), mac_partition(4), mac_seeotheruids(4),
     mac_test(4), login.conf(5), getfmac(8), getpmac(8), ifconfig(8),
     setfmac(8), setpmac(8), mac(9)

HISTORY

     MAC first appeared in FreeBSD 5.0.

AUTHORS

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

FreeBSD 5.4		       October 25, 2002 		   FreeBSD 5.4

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