#!/bin/sh
/etc/init.d/miniupnpd enabled || exit 0

# If daemon is:
# - not running: check on any event (event updates may contribute to network_find_wan*)
# - running: check only on ifup (otherwise lease updates etc. would cause daemon state loss)

[ "$ACTION" != "ifup" ] && /etc/init.d/miniupnpd running && exit 0

tmpconf="/var/etc/miniupnpd.conf"
external_iface=$(uci -q get upnpd.settings.external_iface)
external_iface6=$(uci -q get upnpd.settings.external_iface6)
external_zone=$(uci -q get upnpd.settings.external_zone)
[ -x "$(command -v nft)" ] && FW="fw4" || FW="fw3"

. /lib/functions/network.sh
if [ -n "$external_iface" ]; then
	network_get_device ifname "$external_iface"
elif [ -n "$external_zone" ]; then
	ifname=$($FW -q zone "$external_zone" 2>/dev/null | head -1)
else
	network_find_wan external_iface && network_get_device ifname "$external_iface"
fi
if [ -n "$external_iface6" ]; then
	network_get_device ifname6 "$external_iface6"
elif [ -n "$external_zone" ]; then
	ifname6=$($FW -q zone "$external_zone" 2>/dev/null | head -1)
else
	network_find_wan6 external_iface6 && network_get_device ifname6 "$external_iface6"
fi

[ "$DEVICE" != "$ifname" ] && [ "$DEVICE" != "$ifname6" ] && exit 0

grep -qs "^ext_ifname=$ifname" "$tmpconf" && grep -qs "^ext_ifname6=${ifname6:-$ifname}" "$tmpconf" && exit 0

/etc/init.d/miniupnpd restart