Function AppendMHDR

pkg/encoding/lorawan/messages.go:28–36

AppendMHDR appends encoded msg to dst.

(dst []byte, msg *ttnpb.MHDR)

// AppendMHDR appends encoded msg to dst.
func AppendMHDR(dst []byte, msg *ttnpb.MHDR) ([]byte, error) {
	if msg.GetMType() > 7 {
		return nil, errExpectedLowerOrEqual("MType", 7)(msg.GetMType())
	}
	if msg.GetMajor() > 4 {
		return nil, errExpectedLowerOrEqual("Major", 4)(msg.GetMajor())
	}
	return append(dst, byte(msg.GetMType())<<5|byte(msg.GetMajor())), nil
}

// MarshalMHDR returns encoded msg.
func MarshalMHDR(msg *ttnpb.MHDR) ([]byte, error) {