'Return all existing snat_router_interface ports.'

def _get_snat_interface_ports_for_router(self, context, router_id):

    objs = l3_obj.RouterPort.get_objects(context, router_id=router_id, port_type=const.DEVICE_OWNER_ROUTER_SNAT)
    ports = [self.l3plugin._core_plugin._make_port_dict(rp.db_obj.port) for rp in objs]
    return ports
