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#!/bin/bash
#
# Do automatic relabelling
#
. /etc/init.d/functions
PLYMOUTH=
[ -x /usr/bin/plymouth ] && PLYMOUTH=yes
# Check SELinux status
SELINUX_STATE=
if [ -e "/selinux/enforce" ] && [ "$(cat /proc/self/attr/current)" != "kernel" ]; then
if [ -r "/selinux/enforce" ] ; then
SELINUX_STATE=$(cat "/selinux/enforce")
else
# assume enforcing if you can't read it
SELINUX_STATE=1
fi
fi
disable_selinux() {
echo $"*** Warning -- SELinux is active"
echo $"*** Disabling security enforcement for system recovery."
echo $"*** Run 'setenforce 1' to reenable."
echo "0" > "/selinux/enforce"
}
relabel_selinux() {
# if /sbin/init is not labeled correctly this process is running in the
# wrong context, so a reboot will be required after relabel
AUTORELABEL=
. /etc/selinux/config
echo "0" > /selinux/enforce
[ -n "$PLYMOUTH" ] && plymouth --hide-splash
if [ "$AUTORELABEL" = "0" ]; then
echo
echo $"*** Warning -- SELinux ${SELINUXTYPE} policy relabel is required. "
echo $"*** /etc/selinux/config indicates you want to manually fix labeling"
echo $"*** problems. Dropping you to a shell; the system will reboot"
echo $"*** when you leave the shell."
sulogin
else
echo
echo $"*** Warning -- SELinux ${SELINUXTYPE} policy relabel is required."
echo $"*** Relabeling could take a very long time, depending on file"
echo $"*** system size and speed of hard drives."
/sbin/fixfiles -F restore > /dev/null 2>&1
fi
rm -f /.autorelabel
echo $"Unmounting file systems"
umount -a
mount -n -o remount,ro /
echo $"Automatic reboot in progress."
reboot -f
}
[ -z "${cmdline}" ] && cmdline=$(cat /proc/cmdline)
# Clean up SELinux labels
if [ -n "$SELINUX_STATE" ]; then
restorecon /etc/mtab /etc/ld.so.cache /etc/blkid/blkid.tab /etc/resolv.conf >/dev/null 2>&1
fi
# If relabeling, relabel mount points.
if [ -n "$SELINUX_STATE" -a "$READONLY" != "yes" ]; then
if strstr "$cmdline" autorelabel || [ -f /.autorelabel ] ; then
restorecon $(awk '!/^#/ && $4 !~ /noauto/ && $2 ~ /^\// { print $2 }' /etc/fstab) >/dev/null 2>&1
fi
fi
# Check to see if a full relabel is needed
if [ -n "$SELINUX_STATE" -a "$READONLY" != "yes" ]; then
if strstr "$cmdline" autorelabel || [ -f /.autorelabel ] ; then
relabel_selinux
fi
else
if [ "$READONLY" != "yes" ] && [ -d /etc/selinux ]; then
[ -f /.autorelabel ] || touch /.autorelabel
fi
fi
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