#!/bin/sh
#
# autossh . Startup script for autossh

# chkconfig: 2345 20 80
# description: Maintain a persistent SSH tunneling
# processname: autossh
# pidfile: /var/run/autossh.pid

# @since 2012-02-22 15:31:47
# @author Roderick Derks

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

prog="autossh"
autossh="/usr/bin/autossh"
RETVAL=0
AUTOSSH_PIDFILE=/var/run/autossh.pid

# Tunnel configuration
LOCAL_PORT_LISTEN=12121
REMOTE_DESTINATION_PORT=5669
USER=nagios
REMOTE_DESTINATION_IP=192.168.0.100

start() {
 echo -n $"Starting $prog: "
 if [ ! -e $AUTOSSH_PIDFILE ]; then
    AUTOSSH_PIDFILE=$AUTOSSH_PIDFILE;export AUTOSSH_PIDFILE
    # Got a problem using the daemon function, the ssh tunnel will not start as it should. So commented out that line.
    #daemon autossh -M 0 -q -f -N -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -L $LOCAL_PORT_LISTEN:localhost:$REMOTE_DESTINATION_PORT $USER@$REMOTE_DESTINATION_IP
    autossh -M 0 -q -f -N -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -L $LOCAL_PORT_LISTEN:localhost:$REMOTE_DESTINATION_PORT $USER@$REMOTE_DESTINATION_IP
    RETVAL=$?
 else
    RETVAL=1
    echo_failure
    echo pid file still exists $AUTOSSH_PIDFILE
 fi
 echo
 [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog
 return $RETVAL
}

stop() {
 echo -n $"Stopping $prog: "
 killproc $autossh
 RETVAL=$?
 echo
 [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog && rm -f $AUTOSSH_PIDFILE
 return $RETVAL
}

case "$1" in
start)
        start
        ;;
stop)
        stop
        ;;
restart)
        stop
        start
        ;;
status)
        status $autossh
        RETVAL=$?
        ;;
*)
        echo $"Usage: $0 {start|stop|restart|status}"
        RETVAL=1