|
Chris PeBenito |
7c347c |
Switching to Targeted Reference Policy
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
3d6520 |
The targeted policy is now available on Fedora Core 5 systems, as selinux-policy-targeted 2.*.
|
|
Chris PeBenito |
67b899 |
If you are using Rawhide, simply update your policy using yum.
|
|
Chris PeBenito |
01e30c |
This guide will walk you through switching to the targeted reference
|
|
Chris PeBenito |
67b899 |
policy on a Fedora system not using these repositories.
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
Download and unpack the policy
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
d299d7 |
The policy is available
|
|
Chris PeBenito |
01e30c |
from Sourceforge. Download the policy, and unpack it to a temporary
|
|
Chris PeBenito |
01e30c |
directory. Then use the install-src make target to install the policy
|
|
Chris PeBenito |
01e30c |
sources.
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
556113 |
# tar -jxvf refpolicy-20050922.tar.bz2 -C /tmp
|
|
Chris PeBenito |
d299d7 |
# cd /tmp/refpolicy
|
|
Chris PeBenito |
d299d7 |
# make install-src
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
Configure the policy
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
The policy source is found in the
|
|
Chris PeBenito |
7c347c |
/etc/selinux/refpolicy/src/policy/ directory.
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
d299d7 |
# cd /etc/selinux/refpolicy/src/policy
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
d299d7 |
Edit the policy Makefile (/etc/selinux/refpolicy/src/policy/Makefile).
|
|
Chris PeBenito |
d299d7 |
Near the top of the file, the policy has a few build options.
|
|
Chris PeBenito |
556113 |
The TYPE needs to be set to targeted, the DISTRO option needs to be
|
|
Chris PeBenito |
556113 |
uncommented and set to redhat, and DIRECT_INITRC should be set to y.
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
########################################
|
|
Chris PeBenito |
01e30c |
#
|
|
Chris PeBenito |
01e30c |
# Configurable portions of the Makefile
|
|
Chris PeBenito |
01e30c |
#
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
# Policy version
|
|
Chris PeBenito |
01e30c |
# By default, checkpolicy will create the highest
|
|
Chris PeBenito |
01e30c |
# version policy it supports. Setting this will
|
|
Chris PeBenito |
01e30c |
# override the version.
|
|
Chris PeBenito |
01e30c |
#OUTPUT_POLICY = 18
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
# Policy Type
|
|
Chris PeBenito |
556113 |
# strict, targeted,
|
|
Chris PeBenito |
556113 |
# strict-mls, targeted-mls,
|
|
Chris PeBenito |
556113 |
# strict-mcs, targeted-mcs
|
|
Chris PeBenito |
01e30c |
TYPE = <font color=red>targeted</font>
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
# Policy Name
|
|
Chris PeBenito |
01e30c |
# If set, this will be used as the policy
|
|
Chris PeBenito |
01e30c |
# name. Otherwise the policy type will be
|
|
Chris PeBenito |
01e30c |
# used for the name.
|
|
Chris PeBenito |
01e30c |
NAME = refpolicy
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
# Distribution
|
|
Chris PeBenito |
01e30c |
# Some distributions have portions of policy
|
|
Chris PeBenito |
01e30c |
# for programs or configurations specific to the
|
|
Chris PeBenito |
01e30c |
# distribution. Setting this will enable options
|
|
Chris PeBenito |
01e30c |
# for the distribution.
|
|
Chris PeBenito |
01e30c |
# redhat, gentoo, debian, and suse are current options.
|
|
Chris PeBenito |
01e30c |
# Fedora users should enable redhat.
|
|
Chris PeBenito |
01e30c |
<font color=red>DISTRO = redhat</font>
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
556113 |
# Direct admin init
|
|
Chris PeBenito |
556113 |
# Setting this will allow sysadm to directly
|
|
Chris PeBenito |
556113 |
# run init scripts, instead of requring run_init.
|
|
Chris PeBenito |
556113 |
# This is a build option, as role transitions do
|
|
Chris PeBenito |
556113 |
# not work in conditional policy.
|
|
Chris PeBenito |
556113 |
DIRECT_INITRC=<font color=red>y</font>
|
|
Chris PeBenito |
556113 |
|
|
Chris PeBenito |
01e30c |
# Build monolithic policy. Putting n here
|
|
Chris PeBenito |
01e30c |
# will build a loadable module policy.
|
|
Chris PeBenito |
01e30c |
# Only monolithic policies are currently supported.
|
|
Chris PeBenito |
01e30c |
MONOLITHIC=y
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
# Uncomment this to disable command echoing
|
|
Chris PeBenito |
3d6520 |
QUIET:=n
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
Install the policy
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
Next, install the policy, application configuration files, and
|
|
Chris PeBenito |
7c347c |
file contexts.
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
d299d7 |
# make install
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
Change SELinux Configuration
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
Modify the /etc/selinux/config file, and set SELINUXTYPE to refpolicy.
|
|
Chris PeBenito |
01e30c |
It should look similar to this:
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
# This file controls the state of SELinux on the system.
|
|
Chris PeBenito |
01e30c |
# SELINUX= can take one of these three values:
|
|
Chris PeBenito |
01e30c |
# enforcing - SELinux security policy is enforced.
|
|
Chris PeBenito |
01e30c |
# permissive - SELinux prints warnings instead of enforcing.
|
|
Chris PeBenito |
01e30c |
# disabled - No SELinux policy is loaded.
|
|
Chris PeBenito |
01e30c |
SELINUX=enforcing
|
|
Chris PeBenito |
01e30c |
# SELINUXTYPE= can take one of these two values:
|
|
Chris PeBenito |
01e30c |
# targeted - Only targeted network daemons are protected.
|
|
Chris PeBenito |
01e30c |
# strict - Full SELinux protection.
|
|
Chris PeBenito |
01e30c |
SELINUXTYPE=<font color=red>refpolicy</font>
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
Restart and Relabel
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
01e30c |
The system needs to be restarted with the new policy, and relabeled
|
|
Chris PeBenito |
d299d7 |
on booting, to finalize the switch.
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
d299d7 |
# touch /.autorelabel
|
|
Chris PeBenito |
d299d7 |
# shutdown -r now
|
|
Chris PeBenito |
01e30c |
|
|
Chris PeBenito |
7c347c |
|