MIN_RAD_PACKET_LEN
if (received_len < MIN_RAD_PACKET_LEN) {
if (declared_len < MIN_RAD_PACKET_LEN) {
total_length = MIN_RAD_PACKET_LEN;
if (rcv_len < MIN_RAD_PACKET_LEN) {
if (declared_len < MIN_RAD_PACKET_LEN) {
total_length = MIN_RAD_PACKET_LEN;