mac_none(4) null MAC policy module


To compile the null policy into your kernel, place the following lines in your kernel configuration file:
options MAC options MAC_NONE

Alternately, to load the none module at boot time, place the following line in your kernel configuration file:

options MAC

and in loader.conf5:



The policy module implements a none MAC policy that has no effect on access control in the system. Unlike mac_stub4, none of the MAC entry points are defined.

Label Format

No labels are defined for .


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


This software was contributed to the Fx Project by Network Associates 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.


See mac(9) concerning appropriateness for production use. The TrustedBSD MAC Framework is considered experimental in Fx .

While the MAC Framework design is intended to support the containment of the root user, not all attack channels are currently protected by entry point checks. As such, MAC Framework policies should not be relied on, in isolation, to protect against a malicious privileged user.