- up to 3.0

[packages/chrony.git] / chronyd.init

#!/bin/sh
#
# chronyd	chronyd short service description
#
# chkconfig:   2345 58 74
# description: Client/server for the Network Time Protocol, \
#              this program keeps your computer's clock accurate.
#

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

# Get network config
. /etc/sysconfig/network

# default user if not overriden by config
NTPD_USER="ntp"

# Get service config - may override defaults
[ -f /etc/sysconfig/chronyd ] && . /etc/sysconfig/chronyd

# Check that networking is up.
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
		msg_network_down "Chronyd NTPD"
		exit 1
	fi
else
	exit 0
fi

config=/etc/ntp/chrony.conf
keyfile=/etc/ntp/keys
chronyc=/usr/bin/chronyc

get_key() {
    awk '/^[ \t]*'$1'[ \t]*/ { print $2; exit }' < $keyfile
}

get_commandkeyid() {
    awk '/^[ \t]*commandkey[ \t]*/ { keyid=$2 } END { print keyid }' < $config
}

chrony_command() {
    commandkeyid=$(get_commandkeyid)
    [ -z "$commandkeyid" ] && return 1
    commandkey=$(get_key $commandkeyid)
    [ -z "$commandkey" ] && return 2

    ! (
        $chronyc <<EOF &
password $commandkey
$1
EOF
        chronycpid=$!

        # chronyc will hang if the daemon doesn't respond, kill it after 3 s
		#'
        (sleep 3; kill $chronycpid) < /dev/null > /dev/null 2>&1 &
        killerpid=$!

        wait $chronycpid >/dev/null 2>&1
        kill $killerpid >/dev/null 2>&1 || echo "chronyd not responding"
    ) | grep -v '200 OK'
}

generate_commandkey() {
    commandkeyid=$(get_commandkeyid)
    [ -z "$commandkeyid" ] && return 1
    commandkey=$(get_key $commandkeyid)
    [ -z "$commandkey" ] || return 0

	show "Generating Chrony command key"; busy
    commandkey=$(tr -c -d '[\041-\176]' < /dev/urandom | head -c 8)
    [ -n "$commandkey" ] && echo "$commandkeyid $commandkey" >> $keyfile && ok || fail
}

start() {
	# Check if the service is already running?
	if [ -f /var/lock/subsys/chronyd ]; then
		msg_already_running "Chronyd NTPD"
		return
	fi

    generate_commandkey

	msg_starting "Chronyd NTPD"
	daemon /usr/sbin/chronyd -u $NTPD_USER $OPTIONS
	RETVAL=$?
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/chronyd
}

stop() {
	if [ ! -f /var/lock/subsys/chronyd ]; then
		msg_not_running "Chronyd NTPD"
		return
	fi

	# Stop daemons.
	msg_stopping "Chronyd NTPD"
	killproc chronyd
	rm -f /var/lock/subsys/chronyd
}

condrestart() {
	if [ ! -f /var/lock/subsys/chronyd ]; then
		msg_not_running "Chronyd NTPD"
		RETVAL=$1
		return
	fi

	stop
	start
}

RETVAL=0
# See how we were called.
case "$1" in
  start)
  	start
	;;
  stop)
  	stop
	;;
  restart)
	stop
	start
	;;
  try-restart)
	condrestart 0
	;;
  force-reload)
	condrestart 7
	;;
  cyclelogs|flush-logs)
   	status chronyd >/dev/null 2>&1 || exit 7
	chrony_command cyclelogs
	;;
  online|offline)
   	status chronyd >/dev/null 2>&1 || exit 7
	chrony_command $1
	;;
  command)
   	status chronyd >/dev/null 2>&1 || exit 7
	chrony_command "$2"
	;;
  status)
	status chronyd
	RETVAL=$?
	if [ $RETVAL = 0 ]; then
		chrony_command sources
	fi
	;;
  *)
	msg_usage "$0 {start|stop|restart|try-restart|force-reload|online|offline|cyclelogs|command|status}"
	exit 3
esac

exit $RETVAL