internal override byte[] CreateActionDatagram(string destination_address, byte[] data) { lock (this.KNXConnectionTunneling.SequenceNumberLock) { try { int data_length = KNXHelper.GetDataLength(data); // HEADER byte[] dgram = new byte[10]; dgram[00] = 0x06; dgram[01] = 0x10; dgram[02] = 0x04; dgram[03] = 0x20; byte[] total_length = BitConverter.GetBytes(data_length + 20); dgram[04] = total_length[1]; dgram[05] = total_length[0]; dgram[06] = 0x04; dgram[07] = this.KNXConnectionTunneling.ChannelId; dgram[08] = this.KNXConnectionTunneling.GenerateSequenceNumber(); dgram[09] = 0x00; return(base.CreateActionDatagramCommon(destination_address, data, dgram)); } catch (Exception) { this.KNXConnectionTunneling.RevertSingleSequenceNumber(); return(null); } } }
internal override byte[] CreateActionDatagram(string destination_address, byte[] data) { int data_length = KNXHelper.GetDataLength(data); // HEADER byte[] dgram = new byte[6]; dgram[0] = 0x06; dgram[1] = 0x10; dgram[2] = 0x05; dgram[3] = 0x30; byte[] total_length = BitConverter.GetBytes(data_length + 16); dgram[4] = total_length[1]; dgram[5] = total_length[0]; return(base.CreateActionDatagramCommon(destination_address, data, dgram)); }
protected byte[] CreateActionDatagramCommon(string destination_address, byte[] data, byte[] header) { int i = 0; int data_length = KNXHelper.GetDataLength(data); // HEADER byte[] dgram = new byte[data_length + 10 + header.Length]; for (i = 0; i < header.Length; i++) { dgram[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 // if (this._connection.ActionMessageCode != 0x00) { dgram[i++] = this._connection.ActionMessageCode; } else { dgram[i++] = 0x11; } dgram[i++] = 0x00; dgram[i++] = 0xAC; if (KNXHelper.IsAddressIndividual(destination_address)) { dgram[i++] = 0x50; } else { dgram[i++] = 0xF0; } dgram[i++] = 0x00; dgram[i++] = 0x00; byte[] dst_address = KNXHelper.GetAddress(destination_address); dgram[i++] = dst_address[0]; dgram[i++] = dst_address[1]; dgram[i++] = (byte)(data_length); dgram[i++] = 0x00; dgram[i] = 0x80; KNXHelper.WriteData(dgram, data, i); return(dgram); }