#!/bin/sh
########################################################################
# Begin $rc_base/init.d/snort
#
# Description : Snort Initscript
#
# Authors     : Michael Tremer for ipfire.org - mitch@ipfire.org
#
# Version     : 01.00
#
# Notes       :
#
########################################################################

. /etc/sysconfig/rc
. ${rc_functions}

eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
eval $(/usr/local/bin/readhash /var/ipfire/snort/settings)

if [ "$ENABLE_SNORT_ORANGE" == "on" ]; then
	HOME_NET+="$ORANGE_ADDRESS,"
	DEVICES+="$ORANGE_DEV "
fi

if [ "$ENABLE_SNORT_GREEN" == "on" ]; then
	HOME_NET+="$GREEN_ADDRESS,"
	DEVICES+="$GREEN_DEV "
fi

if [ "$ENABLE_SNORT_BLUE" == "on" ]; then
	HOME_NET+="$BLUE_ADDRESS,"
	DEVICES+="$BLUE_DEV "
fi

if [ "$ENABLE_SNORT" == "on" ]; then
	LOCAL_IP=`cat /var/ipfire/red/local-ipaddress`
	if [ "$LOCAL_IP" ]; then
		HOME_NET+="$LOCAL_IP,"
	else
		exit 1 ## Add error handling here
	fi
	DEVICES+="`cat /var/ipfire/red/iface` "
fi

COUNT=`echo $HOME_NET | wc -m`
HOME_NET=`echo $HOME_NET | cut -c $[$COUNT - 2]`
 
echo "var HOME_NET [$HOME_NET]" >	/etc/snort/vars
echo "var EXTERNAL_NET ANY" >> 		/etc/snort/vars

DNS1=`cat /var/ipfire/red/dns1`
DNS2=`cat /var/ipfire/red/dns2`

if [ "$DNS2" ]; then
	echo "var DNS_SERVERS [$DNS1,$DNS2]" >> /etc/snort/vars
else
	echo "var DNS_SERVERS $DNS1" >> /etc/snort/vars
fi 

case "$1" in
	start)
		for DEVICE in $DEVICES; do
			boot_mesg "Starting Intrusion Detection System on $DEVICE..."
			/usr/sbin/snort -c /etc/snort/snort.conf -i $DEVICE -D -l /var/log/snort --pid-path /var/run/snort_$DEVICE.pid
			evaluate_retval
			chmod 644 /var/run/snort_$DEVICE.pid
		done
		;;
		
	stop)
	     DEVICES=""
	     if [ -r /var/run/snort_$BLUE_DEV.pid ]; then
	         DEVICES+="$BLUE_DEV "
       fi
	     if [ -r /var/run/snort_$GREEN_DEV.pid ]; then
	         DEVICES+="$GREEN_DEV "
       fi
	     if [ -r /var/run/snort_$ORANGE_DEV.pid ]; then
	         DEVICES+="$ORANGE_DEV "
       fi
		for DEVICE in $DEVICES; do
			boot_mesg "Stopping Intrusion Detection System on $DEVICE..."
			killproc -p /var/run/snort_$DEVICE.pid /var/run
		done
		;;
		
	status)
		statusproc /usr/sbin/snort
		;;
		
	restart)
		$0 stop
		$0 start
		;;
		
	*)
		echo "Usage: $0 {start|stop|restart|status}"
		exit 1
		;;
esac

# End $rc_base/init.d/snort