Module: E3DCMqtt::RSCP

Defined in:

lib/e3dc_mqtt/rscp/tags.rb,
lib/e3dc_mqtt/rscp/frame.rb,
lib/e3dc_mqtt/rscp/client.rb,
lib/e3dc_mqtt/rscp/errors.rb,
lib/e3dc_mqtt/rscp/message.rb,
lib/e3dc_mqtt/rscp/constants.rb,
lib/e3dc_mqtt/rscp/data_type.rb,
lib/e3dc_mqtt/rscp/rijndael256.rb

Defined Under Namespace

Modules: DataType, Frame, MessageCodec, Rijndael256, Tags Classes: AuthenticationFailed, Client, DataLimitExceeded, DataTypeMismatch, Error, InvalidControl, InvalidCrc, InvalidFrameLength, InvalidMagic, Message, ProtocolVersionMismatch, UnknownDataType

Constant Summary

MAGIC =

0xDCE3

VERSION_1_0 =

0b0001

FRAME_MAGIC_SIZE =

2

FRAME_CTRL_SIZE =

2

FRAME_TIME_SIZE =

12

FRAME_LENGTH_SIZE =

2

FRAME_HEADER_SIZE =

FRAME_MAGIC_SIZE + FRAME_CTRL_SIZE + FRAME_TIME_SIZE + FRAME_LENGTH_SIZE

FRAME_CRC_SIZE =

4

FRAME_MAX_DATA_SIZE =

0xFFFF

DATA_TAG_SIZE =

4

DATA_DATATYPE_SIZE =

1

DATA_LENGTH_SIZE =

2

DATA_HEADER_SIZE =

DATA_TAG_SIZE + DATA_DATATYPE_SIZE + DATA_LENGTH_SIZE

DATA_MAX_DATA_SIZE =

FRAME_MAX_DATA_SIZE - DATA_HEADER_SIZE

CRYPT_BLOCK_SIZE =

32

CRYPT_KEY_SIZE =

32

CRYPT_KEY_PAD =

0xFF

CRYPT_IV_PAD =

0xFF

CRYPT_BLOCK_PAD =

0x00

CTRL_VERSION_SHIFT =

Control field layout (little-endian uint16):

bits 8..11  -> version (0b0001 = 1.0)
bit 12      -> CRC flag

8

CTRL_VERSION_MASK =

0b0000_1111_0000_0000

CTRL_CRC_SHIFT =

12

CTRL_CRC_MASK =

0b0001_0000_0000_0000

CTRL_ALLOWED_MASK =

CTRL_VERSION_MASK | CTRL_CRC_MASK