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#!/bin/sh
# FIXME: load selinux policy. this should really be done after we switchroot
rd_load_policy() {
# If SELinux is disabled exit now
getarg "selinux=0" > /dev/null && return 0
SELINUX="enforcing"
# shellcheck disable=SC1090
[ -e "$NEWROOT/etc/selinux/config" ] && . "$NEWROOT/etc/selinux/config"
# Check whether SELinux is in permissive mode
permissive=0
if getarg "enforcing=0" > /dev/null || [ "$SELINUX" = "permissive" ]; then
permissive=1
fi
# Attempt to load SELinux Policy
if [ -x "$NEWROOT/usr/sbin/load_policy" ] || [ -x "$NEWROOT/sbin/load_policy" ]; then
local ret=0
local out
info "Loading SELinux policy"
mount -o bind /sys "$NEWROOT"/sys
# load_policy does mount /proc and /sys/fs/selinux in
# libselinux,selinux_init_load_policy()
if [ -x "$NEWROOT/sbin/load_policy" ]; then
out=$(LANG=C chroot "$NEWROOT" /sbin/load_policy -i 2>&1)
ret=$?
info "$out"
else
out=$(LANG=C chroot "$NEWROOT" /usr/sbin/load_policy -i 2>&1)
ret=$?
info "$out"
fi
umount "$NEWROOT"/sys/fs/selinux
umount "$NEWROOT"/sys
if [ "$SELINUX" = "disabled" ]; then
return 0
fi
if [ $ret -eq 0 ] || [ $ret -eq 2 ]; then
# If machine requires a relabel, force to permissive mode
[ -e "$NEWROOT"/.autorelabel ] && LANG=C /usr/sbin/setenforce 0
mount --rbind /dev "$NEWROOT/dev"
LANG=C chroot "$NEWROOT" /sbin/restorecon -R /dev
umount -R "$NEWROOT/dev"
return 0
fi
warn "Initial SELinux policy load failed."
if [ $ret -eq 3 ] || [ $permissive -eq 0 ]; then
warn "Machine in enforcing mode."
warn "Not continuing"
emergency_shell -n selinux
exit 1
fi
return 0
elif [ $permissive -eq 0 ] && [ "$SELINUX" != "disabled" ]; then
warn "Machine in enforcing mode and cannot execute load_policy."
warn "To disable selinux, add selinux=0 to the kernel command line."
warn "Not continuing"
emergency_shell -n selinux
exit 1
fi
}
rd_load_policy
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