NAME
mac_partition —
process partition policy
SYNOPSIS
To compile the process partition policy into your kernel, place the following lines in your kernel configuration file:
options MAC
options MAC_PARTITIONAlternately, to load the process partition module at boot time, place the following line in your kernel configuration file:
options MACand in loader.conf(5):
mac_partition_load="YES"
DESCRIPTION
Themac_partition policy module implements a process
partition policy, which allows administrators to place running processes into
“partitions”, based on their numeric process partition
(specified in the process's MAC label). Processes with a specified partition
can only see processes that are in the same partition. If no partition is
specified for a process, it can see all other processes in the system (subject
to other MAC policy restrictions not defined in this man page). No provisions
for placing processes into multiple partitions are available.
Label Format
Partition labels take on the following format:
partition/valueWhere value can be any integer value or
“none”. For example:
partition/1 partition/20 partition/none
SEE ALSO
mac(4), mac_biba(4), mac_bsdextended(4), mac_ifoff(4), mac_lomac(4), mac_mls(4), mac_none(4), mac_portacl(4), mac_seeotheruids(4), mac_test(4), maclabel(7), mac(9)
HISTORY
The mac_partition policy module first
appeared in FreeBSD 5.0 and was developed by the
TrustedBSD Project.
AUTHORS
This software was contributed to the FreeBSD 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.
BUGS
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.