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#! /bin/bash

### BEGIN INIT INFO
# Provides: freenetis-qos
# Required-Start: $remote_fs
# Required-Stop: $remote_fs
# Should-Start: $network $syslog
# Should-Stop: $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start and stop freenetis QoS daemon
# Description: FreenetIS initialization QoS synchronization script.
### END INIT INFO

################################################################################
# #
# This script serves for initialization of QoS of IS FreenetIS #
# #
# Author Michal Kliment 2012 #
# Email kliment@freenetis.org #
# #
# Name freenetis-qos.init.sh #
# Version 0.9.0 #
# #
################################################################################

#Local variable contains path to iptables - mandatory
IPTABLES=/sbin/iptables

#Load variables from config file
CONFIG=/etc/freenetis/freenetis-qos.conf

# Path to QoS synchronization file
QOS_SYNCFILE=/usr/sbin/freenetis-qos-sync

#Path to QoS pid file
QOS_PIDFILE=/var/run/freenetis-qos-sync.pid

#Load variables
if [ -f ${CONFIG} ]; then
. $CONFIG;
else
echo "Config file is missing at path $CONFIG."
echo "Terminating..."
exit 0
fi

start_qos ()
{
cat /dev/null > "$LOG_FILE"

if [ -f ${QOS_PIDFILE} ]; then
echo "Already started"
return 0
fi

echo -n "Starting FreenetIS QoS deamon: "
nohup $QOS_SYNCFILE update >> "$LOG_FILE" 2>&1 &

#Parse PID a save to file
ps aux | grep $QOS_SYNCFILE | grep -v grep | awk '{print $2}' > $QOS_PIDFILE

# test if daemon is started
if [ `ps aux | grep $QOS_SYNCFILE | grep -v grep | wc -l` -gt 0 ];
then
echo "OK"
else
echo "FAILED!"
fi

return 0
}

stop_qos ()
{
if [ ! -f ${QOS_PIDFILE} ]; then
echo "Already stopped"
return 0
fi

#Killing of process by sigterm
echo -n "Stopping FreenetIS QoS deamon: "
kill -9 `cat $QOS_PIDFILE`

rm -f $QOS_PIDFILE

$QOS_SYNCFILE stop >> "$LOG_FILE" 2>&1

# test if daemon is stopped
if [ `ps aux | grep $QOS_SYNCFILE | grep -v grep | wc -l` -eq 0 ];
then
echo "OK"
else
echo "FAILED!";
fi

return 0
}

status_qos ()
{
if [ -f ${QOS_PIDFILE} ]; then
echo "Freenetis QoS is running with PID `cat $QOS_PIDFILE`"
return 0
else
echo "Freenetis QoS is not running"
return 0
fi
}

usage_qos ()
{
echo "usage : `echo $0` (start|stop|restart|status|help)"
}

help_qos ()
{
echo " start - initialization of firewall rules and settings for QoS"
echo " stop - clears firewall rules and settings for QoS"
echo " restart - restarts firewall rules and settings for QoS"
echo " status - returns actual status of QoS"
echo " help - prints help for QoS"
}

# Is parameter #1 zero length?
if [ -z "$1" ]; then
usage_qos
exit 0
fi;

case "$1" in

start)
start_qos
exit 0
;;

restart)
stop_qos
start_qos
exit 0
;;

stop)
stop_qos
exit 0
;;

status)
status_qos
exit 0
;;

help)
usage_qos
help_qos
exit 0
;;

*)
usage_qos
exit 0
;;

esac

exit 0
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