PKGBUILDs/core/initscripts/network

#!/bin/bash

. /etc/rc.conf
. /etc/rc.d/functions

for s in wireless bonding bridges dhcpcd; do
	[[ -f /etc/conf.d/$s ]] && . "/etc/conf.d/$s"
done

ifup() {
	local ifcfg=${!1}

	if [[ ! $1 ]]; then
		echo "usage: $0 ifup <interface_name>"
		return 1
	fi

	# Get the name of the interface from the first token in the string
	if [[ $ifcfg = dhcp ]]; then
		ifname=$1
	else
		ifname=${ifcfg%% *}
	fi

	/sbin/ifconfig $ifname up

	wi_up $1 || return 1

	if [[ $ifcfg = dhcp ]]; then
		# remove the .pid file if it exists
		/bin/rm -f /var/run/dhcpcd-${1}.pid >/dev/null 2>&1
		/bin/rm -f /var/run/dhcpcd-${1}.cache >/dev/null 2>&1
		/sbin/dhcpcd $DHCPCD_ARGS ${1}
	else
		/sbin/ifconfig $ifcfg
	fi
}

wi_up() {
	local iwcfg=wlan_$1

	[[ ${!iwcfg} ]] || return 0

	/usr/sbin/iwconfig ${!iwcfg}
	[[ $WIRELESS_TIMEOUT ]] || WIRELESS_TIMEOUT=2
	sleep $WIRELESS_TIMEOUT

	bssid=$(iwgetid $1 -ra)
	if [[ $bssid = 00:00:00:00:00:00 ]]; then
		printhl "Could not associate $1 - try increasing WIRELESS_TIMEOUT and check network is WEP or has no security"
		return 1
	fi
	return 0
}

ifdown() {
	local ifcfg=${!1}

	if [[ ! $1 ]]; then
		echo "usage: $0 ifdown <interface_name>"
		return 1
	fi

	if [[ $ifcfg = dhcp && -f /var/run/dhcpcd-${1}.pid ]]; then
		/sbin/dhcpcd -k ${1} >/dev/null 2>&1 
	fi
	# Always bring the interface itself down
	/sbin/ifconfig ${1} down >/dev/null 2>&1
}

iflist() {
	for ifline in ${INTERFACES[@]}; do
		if [[ $ifline = ${ifline#!} ]]; then
			printf " $ifline:\t"
		else
			printf "$ifline:\t"
		fi
		echo ${!ifline#!}
	done
}

rtup() {
	local routecfg=${!1}

	if [[ ! $1 ]]; then
		echo "usage: $0 rtup <route_name>"
		return 1
	fi

	if [[ $routecfg =~ :: ]]; then
		/sbin/route -A inet6 add $routecfg
	else
		/sbin/route add $routecfg
	fi
}

rtdown() {
	local routecfg=${!1}

	if [[ ! $1 ]]; then
		echo "usage: $0 rtdown <route_name>"
		return 1
	fi

	if [[ $routecfg =~ :: ]]; then
		/sbin/route -A inet6 del $routecfg
	else
		/sbin/route del $routecfg
	fi
}

rtlist() {
	for rtline in ${ROUTES[@]}; do
		if [[ $rtline = ${rtline#!} ]]; then
			printf " $rtline:\t"
		else
			printf "$rtline:\t"
		fi
		echo ${!rtline#!}
	done
}

bond_up() {
	for ifline in ${BOND_INTERFACES[@]}; do
		if [[ $ifline = ${ifline#!} ]]; then
			bondcfg="bond_$ifline"
			if [[ ${!bondcfg} ]]; then
				/sbin/ifenslave $ifline ${!bondcfg} || error=1
			fi
		fi
	done
}

bond_down() {
	for ifline in ${BOND_INTERFACES[@]}; do
		if [[ $ifline = ${ifline#!} ]]; then
			bondcfg="bond_$ifline"
			/sbin/ifenslave -d $ifline ${!bondcfg} || error=1
		fi
	done
}

bridge_up() {
	for br in ${BRIDGE_INTERFACES[@]}; do
		if [[ $br = ${br#!} ]]; then
			# if the bridge already exists, remove it
			if [[ $(/sbin/ifconfig $br 2>/dev/null) ]]; then
				/sbin/ifconfig $br down
				/usr/sbin/brctl delbr $br
			fi
			/usr/sbin/brctl addbr $br
			brifs="bridge_$br"
			for brif in ${!brifs}; do
				if [[ $brif = ${brif#!} ]]; then
					for ifline in ${BOND_INTERFACES[@]}; do
						if [[ $brif = $ifline && $ifline = ${ifline#!} ]]; then
							ifup $ifline
							bondcfg="bond_$ifline"
							/sbin/ifenslave $ifline ${!bondcfg} || error=1
							unset bond_$ifline
						fi
					done

					/usr/sbin/brctl addif $br $brif || error=1
				fi
			done
		fi
	done
}

bridge_down() {
	for br in ${BRIDGE_INTERFACES[@]}; do
		if [[ $br = ${br#!} ]]; then
			/usr/sbin/brctl delbr $br
		fi
	done
}


case "$1" in
	start)
		if ! ck_daemon network; then
			echo "Network is already running.  Try 'network restart'"
			exit
		fi

		stat_busy "Starting Network"
		error=0
		# bring up bridge interfaces
		bridge_up
		# bring up ethernet interfaces
		for ifline in ${INTERFACES[@]}; do
			if [[ $ifline = ${ifline#!} ]]; then
				ifup $ifline || error=1
			fi
		done
		# bring up bond interfaces
		bond_up
		# bring up routes
		for rtline in "${ROUTES[@]}"; do
			if [ "$rtline" = "${rtline#!}" ]; then
				rtup $rtline || error=1
			fi
		done
		if ((error == 0)); then
			add_daemon network
			stat_done
		else
			stat_fail
		fi
		;;
	stop)
		#if ck_daemon network; then
		#	echo "Network is not running.  Try 'network start'"
		#	exit
		#fi

		if [[ $NETWORK_PERSIST =~ yes|YES && $RUNLEVEL == [06] ]]; then
			status "Skipping Network Shutdown" true
			exit 0
		fi

		stat_busy "Stopping Network"
		rm_daemon network
		error=0
		for rtline in "${ROUTES[@]}"; do
			if [[ $rtline = ${rtline#!} ]]; then
				rtdown $rtline || error=1
			fi
		done
		# bring down bond interfaces
		bond_down
		for ifline in ${INTERFACES[@]}; do
			if [[ $ifline = ${ifline#!} ]]; then
				ifdown $ifline || error=1
			fi
		done
		# bring down bridge interfaces
		bridge_down
		if ((error == 0)); then
			stat_done
		else
			stat_fail
		fi
		;;
	restart)
		$0 stop
		/bin/sleep 2
		$0 start
		;;
	ifup|ifdown|iflist|rtup|rtdown|rtlist)
		$1 $2
		;;
	*)
		echo "usage: $0 {start|stop|restart}"
		echo "       $0 {ifup|ifdown|iflist|rtup|rtdown|rtlist}";;
esac

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