#!/bin/sh
# ifup (iface) / add (net) -> reload natflow, if device conifg defined

[ -c /dev/natflow_ctl ] || exit 0

case "$ACTION" in
	ifup|add) ;;
	*) exit 0 ;;
esac

DEV="${DEVICE:-${DEVICENAME:-$INTERFACE}}"
[ -n "$DEV" ] || exit 0

/etc/init.d/natflow-boot enabled || exit 0

. /lib/functions.sh
config_load natflow

config_get_bool enabled main enabled 1
[ "$enabled" -eq 1 ] || exit 0

match=0

# pattern с '+' end prefix (some in natflow_zone_ctl): eth+
dev_match() {
	case "$1" in
		*+)
			case "$DEV" in
				"${1%+}"*) return 0 ;;
			esac
		;;
		"$DEV")
			return 0
		;;
	esac
	return 1
}

chk_zone() {
	local i
	config_get i "$1" ifname
	dev_match "$i" && match=1
}

chk_vline() {
	local s d
	config_get s "$1" src
	config_get d "$1" dst
	{ dev_match "$s" || dev_match "$d"; } && match=1
}

chk_grp() {
	dev_match "$1" && match=1
}

config_foreach chk_zone zone
config_foreach chk_vline vline
config_list_foreach main ifname_group chk_grp

[ "$match" -eq 1 ] || exit 0

lock /var/lock/natflow-hotplug
logger -t natflow "hotplug: $ACTION $DEV, reload"
/etc/init.d/natflow-boot reload
lock -u /var/lock/natflow-hotplug