selinux: add support for installing a dummy policy (v2)

[firefly-linux-kernel-4.4.55.git] / scripts / selinux / install_policy.sh

diff --git a/scripts/selinux/install_policy.sh b/scripts/selinux/install_policy.sh
new file mode 100644 (file)
index 0000000..7b9ccf6
--- /dev/null
+++ b/scripts/selinux/install_policy.sh
@@ -0,0 +1,69 @@
+#!/bin/sh
+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
+