#!/sbin/runscript
# Copyright 1999-2002 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or later
# $Header: /home/cvsroot/gentoo-src/rc-scripts/init.d/net.eth0,v 1.9 2002/02/15 04:35:43 azarah Exp $

#NB: Config is in /etc/conf.d/net


#for pcmcia users. note that pcmcia must be added to the same
#runlevel as the net.* script that needs it.
depend() {
	use pcmcia
}

checkconfig() {
	if [ -z "`eval echo \$\{iface_${IFACE}\}`" ]
	then
		eerror "Please make sure that /etc/conf.d/net has \$iface_$IFACE set"
		return 1
	fi
}

start() {
	checkconfig || return 1
	local iface_args="`eval echo \$\{iface_${IFACE}\}`"
	local dhcp_args="`eval echo \$\{dhcpcd_${IFACE}\}`"
	local retval=0
	ebegin "Bringing ${IFACE} up"
	if [ "`eval echo \$\{iface_${IFACE}\}`" != "dhcp" ]
	then
		/sbin/ifconfig "$IFACE" "$iface_args" >/dev/null 2>&1 || {
			retval=$?
			eend $retval
			return $retval
		}
	else
		/sbin/dhcpcd "$dhcp_args" "$IFACE" >/dev/null 2>&1 || {
			retval=$?
			eend $retval
			return $?
		}
	fi

	if [ -n "`eval echo \$\{alias_${IFACE}\}`" ]
	then
		local x=""
		local num=0
		for x in `eval echo \$\{alias_${IFACE}\}`
		do
			/sbin/ifconfig "${IFACE}:${num}" "$x" >/dev/null 2>&1
			num=$((num + 1))
		done
		save_options alias "`eval echo \$\{alias_${IFACE}\}`"
	fi
	
	if [ -n "$gateway" ] && [ "${gateway%/*}" = "$IFACE" ]
	then
		/sbin/route add -net default gw "${gateway#*/}" dev "${gateway%/*}" \
			netmask 0.0.0.0 metric 1 >/dev/null 2>&1 || {
			
			local error=$?
			ifconfig "${IFACE}" down >/dev/null 2>&1
			eend ${error}
			return ${error}
		}
	fi

	#enabling rp_filter causes wacky packets to be auto-dropped by
	#the kernel

	if [ -e /proc/sys/net/ipv4/conf/${IFACE}/rp_filter ]
	then
		echo 1 > /proc/sys/net/ipv4/conf/${IFACE}/rp_filter
	fi
	eend
}

stop() {
	local myalias="`get_options alias`"
	ebegin "Bringing ${IFACE} down"
	#do some cleanup in case the amount of aliases change
	if [ -n "$myalias" ]
	then
		local x=""
		local num=0
		for x in $myalias
		do
			/sbin/ifconfig "${IFACE}:${num}" down >/dev/null 2>1
			num=$((num + 1))
		done
	fi
	/sbin/ifconfig "$IFACE" down >/dev/null 2>&1
	eend $?
}