#!/bin/sh
########################################################################
# Begin
#
# Description : RED Device Script
#
# Authors     : Michael Tremer - mitch@ipfire.org
#               Maniacikarus - maniacikarus@ipfire.org
# Inspired by : Nathan Coulson - nathan@linuxfromscratch.org
#               Kevin P. Fleming - kpfleming@linuxfromscratch.org
#
# Version     : 01.00
#
# Notes       : 
#
########################################################################

. /etc/sysconfig/rc 
. ${rc_functions}
eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)

TYPE="${RED_TYPE}"
DEVICE="${RED_DEV}"

if [ "$TYPE" == "STATIC" ]; then
	ADDRESS="${RED_ADDRESS}"
	BROADCAST="${RED_BROADCAST}"
	NETADDRESS="${RED_NETADDRESS}"
	NETMASK="${RED_NETMASK}"
	GATEWAY="${DEFAULT_GATEWAY}"
	# DNS1
	# DNS2

	if [ -z "${BROADCAST}" ]; then
		boot_mesg "BROADCAST variable missing from input, cannot continue." ${FAILURE}
		echo_failure
		exit 1
	fi
	if [ -n "${ADDRESS}" -a -n "${NETMASK}" ]; then
		PREFIX=`whatmask ${NETMASK} | grep -e ^CIDR | awk -F': ' '{ print $2 }' | cut -c 2-`
		args="${args} ${ADDRESS}/${PREFIX} broadcast ${BROADCAST}"
	else
		boot_mesg "ADDRESS and/or NETMASK variable missing from input, cannot continue." ${FAILURE}
		echo_failure
		exit 1
	fi
	
elif [ "${TYPE}" == "DHCP" ]; then

	PIDFILE="/var/run/dhcpcd-${DEVICE}.pid"
	LEASEINFO="/var/ipfire/dhcpc/dhcpcd-${DEVICE}.info"
	DHCP_START="-N -R -L /var/ipfire/dhcpc -c /var/ipfire/dhcpc/dhcpcd.exe "
	DHCP_STOP="-k -c /var/ipfire/dhcpc/dhcpcd.exe "

fi

case "${1}" in
	start)
		boot_mesg "Bringing up the ${DEVICE} interface..."
		boot_mesg_flush
		
		# Check if an interface is there...
		if ip link show ${DEVICE} > /dev/null 2>&1; then
			link_status=`ip link show ${DEVICE} 2> /dev/null`
			if [ -n "${link_status}" ]; then
				if ! echo "${link_status}" | grep -q UP; then
					ip link set ${DEVICE} up
				fi
			fi
		else
			boot_mesg "Interface ${DEVICE} doesn't exist." ${FAILURE}
			echo_failure
			exit 1
		fi
		
		if [ "${TYPE}" == "STATIC" ]; then
			boot_mesg "Adding IPv4 address ${ADDRESS} to the ${DEVICE} interface..."
			ip addr add ${args} dev ${DEVICE}
			evaluate_retval
			echo -n "${DEVICE}" > /var/ipfire/red/iface
			echo -n "${ADDRESS}"  > /var/ipfire/red/local-ipaddress
			echo -n "${GATEWAY}" > /var/ipfire/red/remote-ipaddress
			echo -n "${DNS1}" > /var/ipfire/red/dns1
			echo -n "${DNS2}" > /var/ipfire/red/dns2
			
		elif [ "${TYPE}" == "DHCP" ]; then
			boot_mesg -n "Starting dhcpcd on the ${DEVICE} interface..."		
			echo -n "${DEVICE}" > /var/ipfire/red/iface

			# Test to see if there is a stale pid file
			if [ -f "$PIDFILE" ]; then
				ps `cat "$PIDFILE"` | grep dhcpcd > /dev/null
				if [ $? != 0 ]; then
					rm -f /var/run/dhcpcd-${DEVICE}.pid > /dev/null
				else
					boot_mesg "dhcpcd already running!" ${WARNING}
					echo_warning
					exit 2
				fi
			fi
			
			iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i ${DEVICE} -j ACCEPT
			iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i ${DEVICE} -j ACCEPT
			
			if [ -n "${DHCP_HOSTNAME}" ]; then
				DHCP_START+="-h ${DHCP_HOSTNAME} "
	  	fi
	  	
	  	/sbin/dhcpcd ${DEVICE} ${DHCP_START} >/dev/null 2>&1
	  	RET="$?"
	  	
	  	if [ "$RET" = "0" ]; then
				. /var/ipfire/dhcpc/dhcpcd-${DEVICE}.info
				echo ""
				echo_ok
				boot_mesg "           DHCP Assigned Settings for ${DEVICE}:"
				boot_mesg_flush
				boot_mesg "           IP Address:      $IPADDR"
				boot_mesg_flush
				if [ -n "${DHCP_HOSTNAME}" ]; then
					boot_mesg "           Hostname:        $DHCP_HOSTNAME"
					boot_mesg_flush
				fi
				boot_mesg "           Subnet Mask:     $NETMASK"
				boot_mesg_flush
				boot_mesg "           Default Gateway: $GATEWAY"
				boot_mesg_flush
				boot_mesg "           DNS Server:      $DNS"
				boot_mesg_flush
				
				echo -n `/etc/rc.d/helper/getdnsfromdhcpc.pl 1` > /var/ipfire/red/dns1
				echo -n `/etc/rc.d/helper/getdnsfromdhcpc.pl 2` > /var/ipfire/red/dns2

				. /var/ipfire/dhcpc/dhcpcd-${DEVICE}.info
				echo "$IPADDR"  > /var/ipfire/red/local-ipaddress
				echo "$GATEWAY" > /var/ipfire/red/remote-ipaddress
			else
				echo ""
				$(exit "$RET")
				evaluate_retval
			fi
		
		elif [ "$TYPE" == "PPPOE" ]; then
			eval $(/usr/local/bin/readhash /var/ipfire/ppp/settings)
			
			boot_mesg "Bringing up the PPPoE interface on ${DEVICE}..."
			ip addr add 1.1.1.1/24 broadcast 1.1.1.255 dev ${DEVICE}
			
			PPPOECONF=/etc/ppp/pppoe.conf
			echo > $PPPOECONF #clear
			
			if [ "${METHOD}" != "PPPOE_PLUGIN" ]; then
				echo "LINUX_PLUGIN=" >> $PPPOECONF
			else
				echo "LINUX_PLUGIN=/usr/lib/pppd/2.4.4/rp-pppoe.so" >> $PPPOECONF
			fi
				
			echo "ETH=${DEVICE}" >> $PPPOECONF
			echo "USER=${USERNAME}" >> $PPPOECONF
				
			echo "PPPOE_TIMEOUT=80" >> $PPPOECONF
				
			#echo "PPPD_EXTRA=\"-U\"" >> $PPPOECONF
			#echo "PPPOE_EXTRA=\"-m ${MTU}\"" >> $PPPOECONF

			if [ -n ${SERVICENAME} ]; then
				echo "SERVICENAME=${SERVICENAME}" >> $PPPOECONF
			fi
			if [ -n ${CONCENTRATORNAME} ]; then
				echo "ACNAME=${CONCENTRATORNAME}" >> $PPPOECONF
			fi
				
			if [ "${DNS}" == "Automatic" ]; then
				echo "PEERDNS=yes" >> $PPPOECONF
				echo "DNSTYPE=NOCHANGE" >> $PPPOECONF
			fi
		
			if [ "${AUTH}" == "pap" ]; then
				PPPD_EXTRA+="-chap "
			elif [ "${AUTH}" == "chap" ]; then
				PPPD_EXTRA+="-pap "
			fi
				
			echo "FIREWALL=NONE" >> $PPPOECONF

			if [ "${RECONNECTION}" != "persistent" ]; then
				if [ "${TIMEOUT}" != "0" ] && [ "${TIMEOUT}" != "" ]; then
					SECONDS=$[${TIMEOUT} * 60]
				fi
				if [ "${RECONNECTION}" == "dialondemand" ]; then
					touch /var/ipfire/red/dial-on-demand
					echo "DEMAND=${SECONDS}" >> $PPPOECONF
				fi
			else
				echo "DEMAND=no" >> $PPPOECONF
			fi
			
			echo "LCP_INTERVAL=20" >> $PPPOECONF
			echo "LCP_FAILURE=3" >> $PPPOECONF
				
			echo "PIDFILE=/var/run/ppp-ipfire.pid" >> $PPPOECONF
				
			#ARGS+=" maxfail ${MAXRETRIES}"
			
			[ "${METHOD}" != "PPPOE_PLUGIN" ] && [ "${DEBUG}" == "on" ] && export DEBUG=1
			/usr/sbin/pppoe-start
			evaluate_retval
		fi
		
		for i in $( ls -v ${rc_base}/init.d/networking/red.up/* 2> /dev/null); do
			check_script_status
			OUT=$(echo $(basename ${i}) | awk -F- '{ print $2 }')
			case "$OUT" in
				S) ${i} start	;;
				K) ${i} stop ;;
				RS) ${i} restart ;;
				RL) ${i} reload	;;
				*) ${i} ;;
			esac
		done
		;;

	stop)
		if [ "$TYPE" == "STATIC" ]; then
			boot_mesg "Removing IPv4 address ${ADDRESS} from the ${DEVICE} interface..."
			ip addr del ${args} dev ${DEVICE}
			evaluate_retval
			
		elif [ "$TYPE" == "DHCP" ]; then
			boot_mesg -n "Stopping dhcpcd on the ${DEVICE} interface..."
			if [ -e $LEASEINFO ]; then
				. $LEASEINFO
				if [ "$LEASETIME" = "4294967295" ]; then
					# do nothing, just echo ok
					echo ""
					echo_ok
				else
					if [ -n "$DHCP_STOP" ]; then
						/sbin/dhcpcd ${DEVICE} $DHCP_STOP &> /dev/null
						RET="$?"
						if [ "$RET" -eq 0 ]; then
							echo ""
							echo_ok
						elif [ "$RET" -eq 1 ]; then
							boot_mesg "dhcpcd not running!" ${WARNING}
							echo_warning
						else
							echo ""
							echo_failure
						fi
					else
						echo ""
						killproc dhcpcd
					fi
		    fi
			else
				boot_mesg -n "LEASEINFO Test failed! - " ${WARNING}
				boot_mesg "dhcpcd is not running!" ${WARNING}
				echo_warning
				exit 1
			fi
		
		elif [ "$TYPE" == "PPPOE" ]; then
			boot_mesg "Bringing down the PPPoE interface on ${DEVICE}..."
		
			/usr/sbin/pppoe-stop
			evaluate_retval
			ip addr del 1.1.1.1/24 broadcast 1.1.1.255 dev ${DEVICE}
			
		fi
		
		link_status=`ip link show $DEVICE 2> /dev/null`
		if [ -n "${link_status}" ]; then
			if echo "${link_status}" | grep -q UP; then
				boot_mesg "Bringing down the ${DEVICE} interface..."
				ip link set ${DEVICE} down
				evaluate_retval
			fi
		fi
		
		rm -f /var/ipfire/red/{active,device,dial-on-demand,dns1,dns2,local-ipaddress,remote-ipaddress,resolv.conf}
		for i in $( ls -v ${rc_base}/init.d/networking/red.down/* 2> /dev/null); do
			check_script_status
			OUT=$(echo $(basename ${i}) | awk -F- '{ print $2 }')
			case "$OUT" in
				S) ${i} start	;;
				K) ${i} stop ;;
				RS) ${i} restart ;;
				RL) ${i} reload	;;
				*) ${i} ;;
			esac
		done
		;;
		
esac

# End