ubuntu-linux-kernel/scripts/selinux/install_policy.sh

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2024-04-01 15:06:58 +00:00
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
if [ `id -u` -ne 0 ]; then
echo "$0: must be root to install the selinux policy"
exit 1
fi
SF=`which setfiles`
if [ $? -eq 1 ]; then
if [ -f /sbin/setfiles ]; then
SF="/usr/setfiles"
else
echo "no selinux tools installed: setfiles"
exit 1
fi
fi
cd mdp
CP=`which checkpolicy`
VERS=`$CP -V | awk '{print $1}'`
./mdp policy.conf file_contexts
$CP -o policy.$VERS policy.conf
mkdir -p /etc/selinux/dummy/policy
mkdir -p /etc/selinux/dummy/contexts/files
cp file_contexts /etc/selinux/dummy/contexts/files
cp dbus_contexts /etc/selinux/dummy/contexts
cp policy.$VERS /etc/selinux/dummy/policy
FC_FILE=/etc/selinux/dummy/contexts/files/file_contexts
if [ ! -d /etc/selinux ]; then
mkdir -p /etc/selinux
fi
if [ ! -f /etc/selinux/config ]; then
cat > /etc/selinux/config << EOF
SELINUX=enforcing
SELINUXTYPE=dummy
EOF
else
TYPE=`cat /etc/selinux/config | grep "^SELINUXTYPE" | tail -1 | awk -F= '{ print $2 '}`
if [ "eq$TYPE" != "eqdummy" ]; then
selinuxenabled
if [ $? -eq 0 ]; then
echo "SELinux already enabled with a non-dummy policy."
echo "Exiting. Please install policy by hand if that"
echo "is what you REALLY want."
exit 1
fi
mv /etc/selinux/config /etc/selinux/config.mdpbak
grep -v "^SELINUXTYPE" /etc/selinux/config.mdpbak >> /etc/selinux/config
echo "SELINUXTYPE=dummy" >> /etc/selinux/config
fi
fi
cd /etc/selinux/dummy/contexts/files
$SF file_contexts /
mounts=`cat /proc/$$/mounts | egrep "ext2|ext3|xfs|jfs|ext4|ext4dev|gfs2" | awk '{ print $2 '}`
$SF file_contexts $mounts
dodev=`cat /proc/$$/mounts | grep "/dev "`
if [ "eq$dodev" != "eq" ]; then
mount --move /dev /mnt
$SF file_contexts /dev
mount --move /mnt /dev
fi