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#!/sbin/openrc-run

# note that the spoofprotect, syncoockies and ip_forward options are set in 
# /etc/sysctl.conf

: ${cfgfile:="/etc/network/interfaces"}
: ${ifquery:="ifquery"}
: ${ifstate:="/run/ifstate"}

single_iface="${RC_SVCNAME#*.}"
if [ "$single_iface" = "$RC_SVCNAME" ]; then
	single_iface=
fi

depend() {
	need localmount
	want dev-settle
	after bootmisc hwdrivers modules
	provide net
	keyword -jail -prefix -vserver -docker
}

# find interfaces we want to start
find_ifaces() {
	if [ -n "$single_iface" ]; then
		echo $single_iface
		return 0
	fi

	if command -v "$ifquery" >/dev/null; then
		$ifquery -i "$cfgfile" --list --auto
		return
	fi

	# fallback in case ifquery does not exist
	awk '$1 == "auto" {for (i = 2; i <= NF; i = i + 1) printf("%s ", $i)}' "$cfgfile"
}

# return the list of interfaces we should try stop
find_running_ifaces() {
	if [ -n "$single_iface" ]; then
		echo $single_iface
		return 0
	fi

	if command -v "$ifquery" >/dev/null; then
		$ifquery --state-file $ifstate -i "$cfgfile" --running
		return
	fi

	# fallback
	awk -F= '{print $2}' $ifstate
}

start() {
	local iface= ret=1
	ebegin "Starting networking"
	eindent
	for iface in $(find_ifaces); do
		local r=0
		ebegin "$iface"
		if ! ifup -i "$cfgfile" $iface >/dev/null; then
			ifdown -i "$cfgfile" $iface >/dev/null 2>&1
			r=1
		fi
		# atleast one interface needs to be started for action
		# to be success
		eend $r && ret=0
	done
	eoutdent
	return $ret
}

stop() {
	local iface=
	# Don't stop the network at shutdown.
	yesno ${keep_network:-YES} && yesno $RC_GOINGDOWN && return 0

	ebegin "Stopping networking"
	eindent
	for iface in $(find_running_ifaces); do
		ebegin "$iface"
		ifdown -i "$cfgfile" -f $iface >/dev/null
		eend $?
	done
	eoutdent
	return 0
}