NAME    [Toc]    [Back]

     mac_bsdextended -- file system firewall policy

SYNOPSIS    [Toc]    [Back]

     To compile the file system firewall policy into your kernel, place the
     following lines in your kernel configuration file:

	   options MAC
	   options MAC_BSDEXTENDED

     Alternately, to load the file system firewall policy module at boot time,
     place the following line in your kernel configuration file:

	   options MAC

     and in loader.conf(5):

	   mac_bsdextended_load="YES"

DESCRIPTION    [Toc]    [Back]

     The mac_bsdextended 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 ugidfw(8), or
     some other tool utilizing libugidfw(3)) where they are stored internally
     and used to determine whether to allow or deny specific accesses (see
     ugidfw(8)).

IMPLEMENTATION NOTES    [Toc]    [Back]

     While the traditional 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.

SEE ALSO    [Toc]    [Back]

     libugidfw(3), mac(4), mac_biba(4), mac_ifoff(4), mac_lomac(4),
     mac_mls(4), mac_none(4), mac_partition(4), mac_portacl(4),
     mac_seeotheruids(4), mac_test(4), ugidfw(8), mac(9)

HISTORY    [Toc]    [Back]

     The mac_bsdextended policy module first appeared in FreeBSD 5.0 and was
     developed by the TrustedBSD Project.

AUTHORS    [Toc]    [Back]

     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 5.2.1		       October 16, 2002 		 FreeBSD 5.2.1