Document the following MAC policies:

o Biba: A data integrity policy
o BSD Extended: Support for the firewall-like access controls (ugidfw(8))
o MLS: Multi-level security, a confidentiality policy

(These files originally lived in src/share/man/man9)

Approved by:	re (blanket)
Sponsored by:	DARPA, Network Associates Labs
Obtained from:	TrustedBSD Project

1 files changed, 80 insertions, 0 deletions

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+.\" Copyright (c) 2002 Networks Associates Technology, Inc.
+.\" All rights reserved.
+.\" 
+.\" This software was developed for the FreeBSD Project by Chris
+.\" Costello at Safeport Network Services and 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.
+.\" 
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. The names of the authors may not be used to endorse or promote
+.\"    products derived from this software without specific prior written
+.\"    permission.
+.\" 
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\" 
+.\" $FreeBSD$
+.Dd OCTOBER 16, 2002
+.Os
+.Dt MAC_BSDEXTENDED 4
+.Sh NAME
+.Nm mac_bsdextended
+.Nd subject-object interaction rules policy
+.Sh SYNOPSIS
+.\" .Cd options MAC_BSDEXTENDED
+.Li kldload mac_bsdextended
+.Sh DESCRIPTION
+The
+.Nm
+interface provides an interface for the system administrator
+to impose mandatory rules regarding users and some system objects.
+Rules are uploaded to the module
+(typically using
+.Xr libugidfw 3 )
+where they are stored internally
+and used to determine whether to allow or deny specific accesses
+(see
+.Xr ugidfw 8 ) .
+.Sh IMPLEMENTATION NOTES
+While the traditional
+.Xr mac 9
+entry points are implemented,
+policy labels are not used;
+instead, access control decisions are made by iterating through the internal
+list of rules until a rule
+which denies the particular access
+is found,
+or the end of the list is reached.
+.Sh SEE ALSO
+.Xr libugidfw 3 ,
+.Xr ugidfw 8 ,
+.Xr mac 9
+.Sh HISTORY
+The
+.Nm
+interface was first introduced in
+.Fx 5.0 .
+.Sh AUTHORS
+This software was contributed to the
+.Fx
+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.