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#!/bin/sh
# Copyright 2016 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
### BEGIN INIT INFO
# Provides: google_ip_forwarding_daemon
# Required-Start: $network $syslog $google_instance_setup
# $google_network_setup
# Required-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Google Compute Engine IP Forwarding Daemon
# Description: Manages IP forwarding.
### END INIT INFO
# Do NOT "set -e".
NAME=google-ip-forwarding-daemon
DAEMON=/usr/bin/google_ip_forwarding_daemon
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
# Exit if the package is not installed.
[ -x "$DAEMON" ] || exit 0
# Load the rcS variables.
. /lib/init/vars.sh
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions
#
# Function that starts the daemon/service.
#
do_start()
{
start-stop-daemon \
--background \
--exec $DAEMON \
--make-pidfile \
--pidfile $PIDFILE \
--quiet \
--start > /dev/null
}
#
# Function that stops the daemon/service.
#
do_stop()
{
start-stop-daemon \
--exec $DAEMON \
--pidfile $PIDFILE \
--quiet \
--retry=TERM/30/KILL/5 \
--stop > /dev/null
# Wait for children to finish too if this is a daemon that forks
# and if the daemon is only ever run from this initscript.
# If the above conditions are not satisfied then add some other code
# that waits for the process to drop all resources that could be
# needed by services started subsequently. A last resort is to
# sleep for some time.
start-stop-daemon \
--exec $DAEMON \
--oknodo \
--quiet \
--retry=0/30/KILL/5 \
--stop > /dev/null
# Delete the pidfile when the daemon exits.
rm -f $PIDFILE
}
case "$1" in
start)
do_start
;;
stop)
do_stop
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
restart|force-reload)
do_stop
do_start
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
exit 1
;;
esac
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