PKGBUILDs/core/initscripts/network

#!/bin/bash

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

# wireless settings
[ -f /etc/conf.d/wireless ] && . /etc/conf.d/wireless
# ethernet bonding settings
[ -f /etc/conf.d/bonding ] && . /etc/conf.d/bonding
# bridge settings
[ -f /etc/conf.d/bridges ] && . /etc/conf.d/bridges
# dhcpcd settings
[ -f /etc/conf.d/dhcpcd ] && . /etc/conf.d/dhcpcd

ifup()
{
	if [ "$1" = "" ]; then
		echo "usage: $0 ifup <interface_name>"
		return 1
	fi

	/sbin/ifconfig $1 up

	wi_up $1 || return 1

	eval ifcfg="\$${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
	return $?
}

wi_up()
{
	eval iwcfg="\$wlan_${1}"
	[ "$iwcfg" = "" ] && return 0

	/usr/sbin/iwconfig $iwcfg
	[[ -z "$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()
{
	if [ "$1" = "" ]; then
		echo "usage: $0 ifdown <interface_name>"
		return 1
	fi
	eval ifcfg="\$${1}"
	if [ "$ifcfg" = "dhcp" ]; then
		if [ -f /var/run/dhcpcd-${1}.pid ]; then
			/bin/kill $(cat /var/run/dhcpcd-${1}.pid)
		fi
	fi
	# Always bring the interface itself down
	/sbin/ifconfig ${1} down >/dev/null 2>&1
	return $?
}

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

rtup()
{
	if [ "$1" = "" ]; then
		echo "usage: $0 rtup <route_name>"
		return 1
	fi
	eval routecfg="\$${1}"
	if grep -q :: <<< $routecfg; then
			/sbin/route -A inet6 add $routecfg
	else
			/sbin/route add $routecfg
	fi
	return $?
}

rtdown()
{
	if [ "$1" = "" ]; then
		echo "usage: $0 rtdown <route_name>"
		return 1
	fi
	eval routecfg="\$${1}"
	if grep -q :: <<< $routecfg; then
			/sbin/route -A inet6 del $routecfg
	else
			/sbin/route del $routecfg
	fi
	return $?
}

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

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

bond_down()
{
	for ifline in ${BOND_INTERFACES[@]}; do
		if [ "$ifline" = "${ifline#!}" ]; then
			eval bondcfg="\$bond_${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 $br
			eval brifs="\$bridge_${br}"
			for brif in $brifs; do
				if [ "$brif" = "${brif#!}" ]; then
					for ifline in ${BOND_INTERFACES[@]}; do
						if [ "$brif" = "$ifline" ] && [ "$ifline" = "${ifline#!}" ]; then
							ifup $ifline
							eval bondcfg="\$bond_${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 -eq 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

		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 -eq 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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