This file is indexed.

/etc/init.d/xen is in xen-utils-common 4.4.0-0ubuntu5.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh
### BEGIN INIT INFO
# Provides:          xen xend
# Required-Start:    $syslog $remote_fs
# Required-Stop:     $syslog $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Xen daemons
# Description:       Xen daemons
### END INIT INFO

. /lib/init/vars.sh
. /lib/lsb/init-functions

# Default variables
XENSTORED_DIR="/var/run/xenstored"

[ -r /etc/default/xen ] && . /etc/default/xen
[ -r /etc/default/xend ] && . /etc/default/xend

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DESC="Xen daemons"

ROOT=$(/usr/lib/xen-common/bin/xen-dir 2>/dev/null)
if [ $? -ne 0 ]; then
	log_warning_msg "Not running within Xen or no compatible utils"
	exit 0
fi
TOOLSTACK=$(/usr/lib/xen-common/bin/xen-toolstack 2>/dev/null)
if [ $? -ne 0 ]; then
	log_warning_msg "No usable Xen toolstack selected"
	exit 0
fi

[ -e "$ROOT"/bin/xend ] && XEND="$ROOT"/bin/xend
XENCONSOLED="$ROOT"/bin/xenconsoled
XENCONSOLED_PIDFILE="/var/run/xenconsoled.pid"
XENSTORED="$ROOT"/bin/xenstored
XENSTORED_PIDFILE="/var/run/xenstore.pid"

modules_setup()
{
	modprobe xenfs 2>/dev/null
	modprobe xen-evtchn 2>/dev/null
	modprobe xen-gntdev 2>/dev/null
}

xenfs_setup()
{
	[ -e "/proc/xen/capabilities" ] && return 0
	log_progress_msg "xenfs"
	[ -d "/proc/xen" ] || return 1
	mount -t xenfs xenfs /proc/xen || return 1
	return 0
}

capability_check()
{
	[ -e "/proc/xen/capabilities" ] || return 1
	grep -q "control_d" /proc/xen/capabilities || return 1
	return 0
}

env_setup()
{
	[ -d /run/xen ] && return 0

	mkdir -m 700 /run/xen
}

xend_start()
{
	if [ -z "$XEND" ] || [ "$(basename "$TOOLSTACK")" != xm ]; then
		return 0
	fi

	log_progress_msg "xend"
	xend_start_real
	return $?
}

xend_stop()
{
	if [ -z "$XEND" ] || [ "$(basename "$TOOLSTACK")" != xm ]; then
		return 0
	fi

	log_progress_msg "xend"
	xend_stop_real
	return $?
}

xend_restart()
{
	if [ -z "$XEND" ] || [ "$(basename "$TOOLSTACK")" != xm ]; then
		return 0
	fi

	log_progress_msg "xend"
	xend_stop_real
	case "$?" in
		0|1)
		xend_start_real
		case "$?" in
			0) ;;
			*) return 2 ;;
		esac
		;;
		*) return 2 ;;
	esac
	return 0
}

xend_start_real()
{
	$XEND status && return 1
	$XEND start || return 2

	i=0
	while [ $i -lt 10 ]; do
		$XEND status && return 0 || true
		i=$(($i + 1))
		sleep 1
	done
	return 2
}

xend_stop_real()
{
	log_progress_msg "xend"
	$XEND status || return 0
	$XEND stop || return 1
}

xenconsoled_start()
{
	log_progress_msg "xenconsoled"
	xenconsoled_start_real
	return $?
}

xenconsoled_stop()
{
	log_progress_msg "xenconsoled"
	xenconsoled_stop_real
	return $?
}

xenconsoled_restart()
{
	log_progress_msg "xenconsoled"
	xenconsoled_stop_real
	case "$?" in
		0|1)
		xenconsoled_start_real
		case "$?" in
			0) ;;
			*) return 2 ;;
		esac
		;;
		*) return 2 ;;
	esac
	return 0
}

xenconsoled_start_real()
{
	start-stop-daemon --start --quiet --pidfile "$XENCONSOLED_PIDFILE" --exec "$XENCONSOLED" --test > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --pidfile "$XENCONSOLED_PIDFILE" --exec "$XENCONSOLED" -- \
		$XENCONSOLED_ARGS --pid-file="$XENCONSOLED_PIDFILE" \
		|| return 2
}

xenconsoled_stop_real()
{
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile "$XENCONSOLED_PIDFILE" --name xenconsoled
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2
	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec "$XENCONSOLED"
	[ "$?" = 2 ] && return 2
	rm -f $PIDFILE
	return "$RETVAL"
}

xenstored_start()
{
	log_progress_msg "xenstored"
	start-stop-daemon --start --quiet --pidfile "$XENSTORED_PIDFILE" --exec "$XENSTORED" --test > /dev/null \
		|| return 1
	[ -d "$XENSTORED_DIR" ] || mkdir -p "$XENSTORED_DIR"
	export XENSTORED_ROOTDIR="$XENSTORED_DIR"
	start-stop-daemon --start --quiet --pidfile "$XENSTORED_PIDFILE" --exec "$XENSTORED" -- \
		$XENSTORED_ARGS --pid-file="$XENSTORED_PIDFILE" \
		|| return 2
	xenstore-write "/local/domain/0/name" "Domain-0"
	xenstore-write "/local/domain/0/domid" "0"
}

case "$1" in
  start)
	log_daemon_msg "Starting $DESC"
	modules_setup
	xenfs_setup
	case "$?" in
		0) ;;
		*) log_end_msg 1; exit ;;
	esac
	capability_check
	case "$?" in
		0) ;;
		*) log_end_msg 255; exit ;;
	esac
	env_setup
	xenstored_start
	case "$?" in
		0|1) ;;
		*) log_end_msg 1; exit ;;
	esac
	xenconsoled_start
	case "$?" in
		0|1) ;;
		*) log_end_msg 1; exit ;;
	esac
	xend_start
	case "$?" in
		0|1) ;;
		*) log_end_msg 1; exit ;;
	esac
	log_end_msg 0
	;;
  stop)
	capability_check
	case "$?" in
		0) ;;
		*) exit ;;
	esac
	log_daemon_msg "Stopping $DESC"
	ret=0
	xend_stop
	case "$?" in
		0|1) ;;
		*) ret=1 ;;
	esac
	xenconsoled_stop
	case "$?" in
		0|1) ;;
		*) ret=1 ;;
	esac
	log_end_msg $ret
	;;
  restart|force-reload)
	capability_check
	case "$?" in
		0) ;;
		*) exit ;;
	esac
	log_daemon_msg "Restarting $DESC"
	ret=0
	xend_restart
	case "$?" in
		0|1) ;;
		*) ret=1 ;;
	esac
	xenconsoled_restart
	case "$?" in
		0|1) ;;
		*) ret=1 ;;
	esac
	log_end_msg $ret
	;;
  *)
	echo "Usage: $0 {start|stop|restart|force-reload}" >&2
	exit 3
	;;
esac

exit 0