#!/bin/sh
#
# chkconfig: 345 85 85
# description: Executes Qubes core scripts at AppVM boot
#
# Source function library.
. /etc/rc.d/init.d/functions

possibly_run_save_script()
{
	ENCODED_SCRIPT=$(xenstore-read qubes_save_script)
	if [ -z "$ENCODED_SCRIPT" ] ; then return ; fi
	echo $ENCODED_SCRIPT|perl -e 'use MIME::Base64 qw(decode_base64); local($/) = undef;print decode_base64(<STDIN>)' >/tmp/qubes_save_script
	chmod 755 /tmp/qubes_save_script
	Xorg -config /etc/X11/xorg-preload-apps.conf :0 &
	sleep 2
	DISPLAY=:0 su - user -c /tmp/qubes_save_script
	killall Xorg
}

start()
{
	if ! [ -x /usr/bin/xenstore-read ] ; then
		echo "ERROR: /usr/bin/xenstore-read not found!"
		exit 1
	fi

    type=$(/usr/bin/xenstore-read qubes_vm_type)
    if [ "$type" != "AppVM" -a "$type" != "DisposableVM" ]; then
        # This script runs only on AppVMs
        return 0
    fi
    
    # Start AppVM specific services
    /sbin/service cups start

	echo -n $"Executing Qubes Core scripts for AppVM:"

	if xenstore-read qubes_save_request 2>/dev/null ; then
		ln -sf /home_volatile /home
		possibly_run_save_script 
		touch /etc/this_is_dvm
		dmesg -c >/dev/null
		free | grep Mem: | 
			(read a b c d ; xenstore-write device/qubes_used_mem $c)
		# we're still running in DispVM template
		echo "Waiting for save/restore..."
		# ... wait until qubes_restore.c (in Dom0) recreates VM-specific keys
		while ! xenstore-read qubes_restore_complete 2>/dev/null ; do 
			usleep 10
		done
		echo Back to life.
	fi

    MEM_CHANGE_THRESHOLD_KB=30000
    MEMINFO_DELAY_USEC=100000
    /usr/lib/qubes/meminfo-writer $MEM_CHANGE_THRESHOLD_KB $MEMINFO_DELAY_USEC &

	success
	echo ""
	return 0
}

stop()
{
	return 0
}

case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  *)
	echo $"Usage: $0 {start|stop}"
	exit 3
	;;
esac

exit $RETVAL