$(INSTALL_DATA) ./files/reflection.hotplug $(1)/etc/hotplug.d/firewall/10-nat-reflection
$(INSTALL_DIR) $(1)/etc
$(INSTALL_DATA) ./files/firewall.user $(1)/etc
+ $(INSTALL_DIR) $(1)/lib/upgrade/keep.d
+ $(INSTALL_DATA) ./files/firewall.upgrade $(1)/lib/upgrade/keep.d/firewall
endef
$(eval $(call BuildPackage,firewall))