Exemplo n.º 1
0
        public static ResponseType ProcessCEMI(ref KnxDatagram datagram, byte[] cemi, bool threeLevelGroupAddressing, bool isDebug)
        {
            try
            {
                // CEMI
                // +--------+--------+--------+--------+----------------+----------------+--------+----------------+
                // |  Msg   |Add.Info| Ctrl 1 | Ctrl 2 | Source Address | Dest. Address  |  Data  |      APDU      |
                // | Code   | Length |        |        |                |                | Length |                |
                // +--------+--------+--------+--------+----------------+----------------+--------+----------------+
                //   1 byte   1 byte   1 byte   1 byte      2 bytes          2 bytes       1 byte      2 bytes
                //
                //  Message Code    = 0x11 - a L_Data.req primitive
                //      COMMON EMI MESSAGE CODES FOR DATA LINK LAYER PRIMITIVES
                //          FROM NETWORK LAYER TO DATA LINK LAYER
                //          +---------------------------+--------------+-------------------------+---------------------+------------------+
                //          | Data Link Layer Primitive | Message Code | Data Link Layer Service | Service Description | Common EMI Frame |
                //          +---------------------------+--------------+-------------------------+---------------------+------------------+
                //          |        L_Raw.req          |    0x10      |                         |                     |                  |
                //          +---------------------------+--------------+-------------------------+---------------------+------------------+
                //          |                           |              |                         | Primitive used for  | Sample Common    |
                //          |        L_Data.req         |    0x11      |      Data Service       | transmitting a data | EMI frame        |
                //          |                           |              |                         | frame               |                  |
                //          +---------------------------+--------------+-------------------------+---------------------+------------------+
                //          |        L_Poll_Data.req    |    0x13      |    Poll Data Service    |                     |                  |
                //          +---------------------------+--------------+-------------------------+---------------------+------------------+
                //          |        L_Raw.req          |    0x10      |                         |                     |                  |
                //          +---------------------------+--------------+-------------------------+---------------------+------------------+
                //          FROM DATA LINK LAYER TO NETWORK LAYER
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          | Data Link Layer Primitive | Message Code | Data Link Layer Service | Service Description |
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          |        L_Poll_Data.con    |    0x25      |    Poll Data Service    |                     |
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          |                           |              |                         | Primitive used for  |
                //          |        L_Data.ind         |    0x29      |      Data Service       | receiving a data    |
                //          |                           |              |                         | frame               |
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          |        L_Busmon.ind       |    0x2B      |   Bus Monitor Service   |                     |
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          |        L_Raw.ind          |    0x2D      |                         |                     |
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          |                           |              |                         | Primitive used for  |
                //          |                           |              |                         | local confirmation  |
                //          |        L_Data.con         |    0x2E      |      Data Service       | that a frame was    |
                //          |                           |              |                         | sent (does not mean |
                //          |                           |              |                         | successful receive) |
                //          +---------------------------+--------------+-------------------------+---------------------+
                //          |        L_Raw.con          |    0x2F      |                         |                     |
                //          +---------------------------+--------------+-------------------------+---------------------+

                //  Add.Info Length = 0x00 - no additional info
                //  Control Field 1 = see the bit structure above
                //  Control Field 2 = see the bit structure above
                //  Source Address  = 0x0000 - filled in by router/gateway with its source address which is
                //                    part of the KNX subnet
                //  Dest. Address   = KNX group or individual address (2 byte)
                //  Data Length     = Number of bytes of data in the APDU excluding the TPCI/APCI bits
                //  APDU            = Application Protocol Data Unit - the actual payload including transport
                //                    protocol control information (TPCI), application protocol control
                //                    information (APCI) and data passed as an argument from higher layers of
                //                    the KNX communication stack
                //
                datagram.MessageCode          = cemi[0];
                datagram.AdditionalInfoLength = cemi[1];

                if (datagram.AdditionalInfoLength > 0)
                {
                    datagram.AdditionalInfo = new byte[datagram.AdditionalInfoLength];
                    for (var i = 0; i < datagram.AdditionalInfoLength; i++)
                    {
                        datagram.AdditionalInfo[i] = cemi[2 + i];
                    }
                }

                datagram.ControlField1 = cemi[2 + datagram.AdditionalInfoLength];
                datagram.ControlField2 = cemi[3 + datagram.AdditionalInfoLength];
                datagram.SourceAddress = Networking.GetIndividualAddress(new[] { cemi[4 + datagram.AdditionalInfoLength], cemi[5 + datagram.AdditionalInfoLength] });

                datagram.DestinationAddress =
                    Networking.GetKnxDestinationAddressType(datagram.ControlField2).Equals(KnxDestinationAddressType.Individual)
                        ? Networking.GetIndividualAddress(new[] { cemi[6 + datagram.AdditionalInfoLength], cemi[7 + datagram.AdditionalInfoLength] })
                        : Networking.GetGroupAddress(new[] { cemi[6 + datagram.AdditionalInfoLength], cemi[7 + datagram.AdditionalInfoLength] }, threeLevelGroupAddressing);

                datagram.DataLength = cemi[8 + datagram.AdditionalInfoLength];
                datagram.Apdu       = new byte[datagram.DataLength + 1];

                for (var i = 0; i < datagram.Apdu.Length; i++)
                {
                    datagram.Apdu[i] = cemi[9 + i + datagram.AdditionalInfoLength];
                }

                datagram.Data = DataProcessing.GetData(datagram.DataLength, datagram.Apdu);

                if (isDebug)
                {
                    System.Diagnostics.Debug.WriteLine("-----------------------------------------------------------------------------------------------------");
                    System.Diagnostics.Debug.WriteLine(BitConverter.ToString(cemi));
                    System.Diagnostics.Debug.WriteLine("Event Header Length: " + datagram.HeaderLength);
                    System.Diagnostics.Debug.WriteLine("Event Protocol Version: " + datagram.ProtocolVersion.ToString("x"));
                    System.Diagnostics.Debug.WriteLine("Event Service Type: 0x" + BitConverter.ToString(datagram.ServiceType).Replace("-", string.Empty));
                    System.Diagnostics.Debug.WriteLine("Event Total Length: " + datagram.TotalLength);

                    System.Diagnostics.Debug.WriteLine("Event Message Code: " + datagram.MessageCode.ToString("x"));
                    System.Diagnostics.Debug.WriteLine("Event Aditional Info Length: " + datagram.AdditionalInfoLength);

                    if (datagram.AdditionalInfoLength > 0)
                    {
                        System.Diagnostics.Debug.WriteLine("Event Aditional Info: 0x" + BitConverter.ToString(datagram.AdditionalInfo).Replace("-", string.Empty));
                    }

                    System.Diagnostics.Debug.WriteLine("Event Control Field 1: " + Convert.ToString(datagram.ControlField1, 2));
                    System.Diagnostics.Debug.WriteLine("Event Control Field 2: " + Convert.ToString(datagram.ControlField2, 2));
                    System.Diagnostics.Debug.WriteLine("Event Source Address: " + datagram.SourceAddress);
                    System.Diagnostics.Debug.WriteLine("Event Destination Address: " + datagram.DestinationAddress);
                    System.Diagnostics.Debug.WriteLine("Event Data Length: " + datagram.DataLength);
                    System.Diagnostics.Debug.WriteLine("Event APDU: 0x" + BitConverter.ToString(datagram.Apdu).Replace("-", string.Empty));
                    System.Diagnostics.Debug.WriteLine("Event Data: " + datagram.Data);
                    System.Diagnostics.Debug.WriteLine("-----------------------------------------------------------------------------------------------------");
                }

                if (datagram.MessageCode != 0x29)
                {
                    return(ResponseType.Other);
                }

                var type = datagram.Apdu[1] >> 4;

                switch (type)
                {
                case 8:
                    return(ResponseType.Event);

                case 4:
                    return(ResponseType.Status);
                }
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
            }

            return(ResponseType.Other);
        }
Exemplo n.º 2
0
        public static byte[] CreateActionDatagramCommon(string destinationAddress, byte[] data, byte[] header, byte actionMessageCode)
        {
            int i;
            var dataLength = DataProcessing.GetDataLength(data);

            // HEADER
            var datagram = new byte[dataLength + 10 + header.Length];

            for (i = 0; i < header.Length; i++)
            {
                datagram[i] = header[i];
            }

            // CEMI (start at position 6)
            // +--------+--------+--------+--------+----------------+----------------+--------+----------------+
            // |  Msg   |Add.Info| Ctrl 1 | Ctrl 2 | Source Address | Dest. Address  |  Data  |      APDU      |
            // | Code   | Length |        |        |                |                | Length |                |
            // +--------+--------+--------+--------+----------------+----------------+--------+----------------+
            //   1 byte   1 byte   1 byte   1 byte      2 bytes          2 bytes       1 byte      2 bytes
            //
            //  Message Code    = 0x11 - a L_Data.req primitive
            //      COMMON EMI MESSAGE CODES FOR DATA LINK LAYER PRIMITIVES
            //          FROM NETWORK LAYER TO DATA LINK LAYER
            //          +---------------------------+--------------+-------------------------+---------------------+------------------+
            //          | Data Link Layer Primitive | Message Code | Data Link Layer Service | Service Description | Common EMI Frame |
            //          +---------------------------+--------------+-------------------------+---------------------+------------------+
            //          |        L_Raw.req          |    0x10      |                         |                     |                  |
            //          +---------------------------+--------------+-------------------------+---------------------+------------------+
            //          |                           |              |                         | Primitive used for  | Sample Common    |
            //          |        L_Data.req         |    0x11      |      Data Service       | transmitting a data | EMI frame        |
            //          |                           |              |                         | frame               |                  |
            //          +---------------------------+--------------+-------------------------+---------------------+------------------+
            //          |        L_Poll_Data.req    |    0x13      |    Poll Data Service    |                     |                  |
            //          +---------------------------+--------------+-------------------------+---------------------+------------------+
            //          |        L_Raw.req          |    0x10      |                         |                     |                  |
            //          +---------------------------+--------------+-------------------------+---------------------+------------------+
            //          FROM DATA LINK LAYER TO NETWORK LAYER
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          | Data Link Layer Primitive | Message Code | Data Link Layer Service | Service Description |
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          |        L_Poll_Data.con    |    0x25      |    Poll Data Service    |                     |
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          |                           |              |                         | Primitive used for  |
            //          |        L_Data.ind         |    0x29      |      Data Service       | receiving a data    |
            //          |                           |              |                         | frame               |
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          |        L_Busmon.ind       |    0x2B      |   Bus Monitor Service   |                     |
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          |        L_Raw.ind          |    0x2D      |                         |                     |
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          |                           |              |                         | Primitive used for  |
            //          |                           |              |                         | local confirmation  |
            //          |        L_Data.con         |    0x2E      |      Data Service       | that a frame was    |
            //          |                           |              |                         | sent (does not mean |
            //          |                           |              |                         | successful receive) |
            //          +---------------------------+--------------+-------------------------+---------------------+
            //          |        L_Raw.con          |    0x2F      |                         |                     |
            //          +---------------------------+--------------+-------------------------+---------------------+

            //  Add.Info Length = 0x00 - no additional info
            //  Control Field 1 = see the bit structure above
            //  Control Field 2 = see the bit structure above
            //  Source Address  = 0x0000 - filled in by router/gateway with its source address which is
            //                    part of the KNX subnet
            //  Dest. Address   = KNX group or individual address (2 byte)
            //  Data Length     = Number of bytes of data in the APDU excluding the TPCI/APCI bits
            //  APDU            = Application Protocol Data Unit - the actual payload including transport
            //                    protocol control information (TPCI), application protocol control
            //                    information (APCI) and data passed as an argument from higher layers of
            //                    the KNX communication stack
            //

            datagram[i++] =
                actionMessageCode != 0x00
                    ? actionMessageCode
                    : (byte)0x11;

            datagram[i++] = 0x00;
            datagram[i++] = 0xAC;

            datagram[i++] =
                Networking.IsAddressIndividual(destinationAddress)
                    ? (byte)0x50
                    : (byte)0xF0;

            datagram[i++] = 0x00;
            datagram[i++] = 0x00;
            var dst_address = Networking.GetAddress(destinationAddress);

            datagram[i++] = dst_address[0];
            datagram[i++] = dst_address[1];
            datagram[i++] = (byte)dataLength;
            datagram[i++] = 0x00;
            datagram[i]   = 0x80;

            DataProcessing.WriteData(datagram, data, i);

            return(datagram);
        }