configure() {
	# first we delete the snat config
	uci -q del network.client.fff_snat
	uci -q del network.client.fff_snat_sourceip
	if [ "$(uci -q get gateway.@client[0].snat)" = '1' ]; then

		# first check the config is plausible
		if ! routerip=$(uci -q get gateway.meta.router_ip); then
			echo "ERROR: No router_ip set, which is required for SNAT!"
			return 1
		fi
		if ! uci -q get gateway.@client[0].ipaddr >/dev/null; then
			echo "ERROR: No ipaddr set, which is required for SNAT!"
			return 1
		fi

		# keep only the first IP
		routerip=${routerip%% *}
		# keep only the IP without the CIDR
		routerip=${routerip%%/*}

		# We set the snat config
		uci set network.client.fff_snat=1
		uci set network.client.fff_snat_sourceip=$routerip
	fi
}

apply() {
	uci commit network
}

revert() {
	uci revert network
}