#!/bin/sh
#
# sys-chroots	This shell scripts starts and stops services in chroots
#
# chkconfig:	2345 99 1
# description:	This shell scripts starts and stops services in chroots

# Source function library.
. /etc/rc.d/init.d/functions

# Source system configuration.
. /etc/sysconfig/system

# Source networking configuration.
. /etc/sysconfig/network

[ -z "$SYSTEM_CHROOTS" ] && exit 0
[ -n "$1" ] && CMD="$1"
[ -n "$2" ] && SYSTEM_CHROOTS="$2"

set $(/sbin/runlevel)
runlevel=$2
previous=$1
export runlevel previous

[ -z "$runlevel" -o -z "$previous" -o "$runlevel" = "$previous" ] && exit 0

RETVAL=0
# See how we were called.
case "$CMD" in
  start)
	# Start daemons.
	if [ "$previous" = "N" ]; then
		runlevel=5
		previous=0
		export runlevel previous
	fi

	if [ ! -f /var/lock/subsys/sys-chroots ]; then
		msg_starting "System chroots services"; started

		for dir in $SYSTEM_CHROOTS; do
			[ ! -x "$dir/etc/rc.d/rc" ] && continue
			msg_starting "System chroots services for $dir"; started

			# Cleaning part, keep in sync with rc.sysinit

			chroot $dir /bin/sh -c '
			. /etc/rc.d/init.d/functions
			. /etc/sysconfig/system
			# Clear mtab
			:>/etc/mtab
			[ -f /etc/cryptomtab ] && :>/etc/cryptomtab

			# Remove stale backups
			rm -f /etc/mtab~ /etc/mtab~~ /etc/cryptomtab~ /etc/cryptomtab~~

			# Clean up /var
			# I would d use find, but /usr may not be mounted.
			for afile in /var/lock/* /var/run/*; do
				bafile=$(basename $afile)
				if [ -d "$afile" ]; then
					[ "$bafile" != "news" -a "$bafile" != "sudo" -a "$bafile" != "mon" ] && rm -rf $afile/*
				else
					[ "$bafile" != "hwprofile" ] && rm -f $afile 2> /dev/null
				fi
			done
			# Delete stale files
			rm -f /var/lib/rpm/__db* /var/spool/postoffice/.pid.* /tmp/.X*-lock \
				/tmp/.lock.* /tmp/.gdm_socket /tmp/.s.PGSQL.*
			rm -rf /tmp/.X*-unix /tmp/.ICE-unix /tmp/.font-unix /tmp/hsperfdata_* \
				/tmp/kde-* /tmp/ksocket-* /tmp/mc-* /tmp/mcop-* /tmp/orbit-* \
				/tmp/scrollkeeper-* /tmp/ssh-*

			# Clean up utmp/wtmp
			if ! is_no "$NEED_XFILES" ; then
				:>/var/run/utmpx
				touch /var/log/wtmpx
				chown root:utmp /var/run/utmpx /var/log/wtmpx
				chmod 0664 /var/run/utmpx /var/log/wtmpx
			else
				:>/var/run/utmp
				touch /var/log/wtmp
				chown root:utmp /var/run/utmp /var/log/wtmp
				chmod 0664 /var/run/utmp /var/log/wtmp
			fi
			# Clean /tmp
			if is_yes "$CLEAN_TMP"; then
				rm -rf /tmp/* /tmp/.[a-zA-Z0-9]*
			fi
			'

			# Do our things

			# proc
			chroot $dir mount -o gid=17 -t proc proc /proc
			# usbfs, if available
			if [ -f /proc/bus/usb/devices ]; then
				chroot $dir mount -t usbfs usbfs /proc/bus/usb
			fi
			# sysfs is also needed before any other things (under kernel > 2.5)
			if grep -q sysfs /proc/filesystems ; then
				chroot $dir mount -o gid=17 -t sysfs sysfs /sys
			fi
			# selinux
			if grep -q selinuxfs /proc/filesystems ; then
				chroot $dir mount -o gid=17 -t selinuxfs selinuxfs /selinux
			fi
			chroot $dir mount -a
			# network
			chroot $dir /sbin/chkconfig network off
			rm -f $dir/etc/rc.d/rc*.d/K*network
			[ -f /var/lock/subsys/network ] && touch $dir/var/lock/subsys/network
			# other
			chroot $dir /sbin/chkconfig single off
			rm -f $dir/etc/rc.d/rc*.d/K*single
			# run it
			chroot $dir /etc/rc.d/rc $runlevel chroot
		done

		touch /var/lock/subsys/sys-chroots
	else
		msg_already_running "System chroots services"
	fi
	;;
  stop)
	# Stop daemons.
	if [ "$previous" = "N" ]; then
		runlevel=0
		previous=5
		export runlevel previous
	fi

	if [ -f /var/lock/subsys/sys-chroots ]; then
		msg_stopping "System chroots services"; started
		for dir in $SYSTEM_CHROOTS; do
			[ ! -x "$dir/etc/rc.d/rc" ] && continue
			msg_stopping "System chroots services for $dir"; started
			chroot $dir /etc/rc.d/rc $runlevel chroot
			rm -f $dir/var/lock/subsys/network
			chroot $dir /bin/sh -c "grep -q selinuxfs /proc/filesystems && umount /selinux"
			chroot $dir /bin/sh -c "grep -q sysfs /proc/filesystems && umount /sys"
			chroot $dir umount -a
			chroot $dir umount /proc
		done
		rm -f /var/lock/subsys/sys-chroots >/dev/null 2>&1
	else
		msg_not_running "System chroots services"
	fi
	;;
  restart)
	$0 stop
	$0 start
	exit $?
	;;
  status)
	# TODO: running each service with status parameter
	for dir in $SYSTEM_CHROOTS; do
		echo "System chroots services for $dir"
		chroot $dir /sbin/chkconfig --list
	done
	exit $?
	;;
  *)
	msg_usage "$0 {start|stop|restart|status}"
	exit 3
esac

exit $RETVAL

# This must be last line !
# vi:syntax=sh
