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);
}
}
}
protected byte[] CreateRequestStatusDatagramCommon(string destination_address, byte[] dgram, int cemi_start_pos)
{
int i = 0;
if (this._connection.ActionMessageCode != 0x00)
{
dgram[cemi_start_pos + i++] = this._connection.ActionMessageCode;
}
else
{
dgram[cemi_start_pos + i++] = 0x11;
}
dgram[cemi_start_pos + i++] = 0x00;
dgram[cemi_start_pos + i++] = 0xAC;
if (KNXHelper.IsAddressIndividual(destination_address))
{
dgram[cemi_start_pos + i++] = 0x50;
}
else
{
dgram[cemi_start_pos + i++] = 0xF0;
}
dgram[cemi_start_pos + i++] = 0x00;
dgram[cemi_start_pos + i++] = 0x00;
byte[] dst_address = KNXHelper.GetAddress(destination_address);
dgram[cemi_start_pos + i++] = dst_address[0];
dgram[cemi_start_pos + i++] = dst_address[1];
dgram[cemi_start_pos + i++] = 0x01;
dgram[cemi_start_pos + i++] = 0x00;
dgram[cemi_start_pos + i] = 0x00;
return(dgram);
}
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));
}
internal override void ProcessDatagram(byte[] dgram)
{
try
{
switch (KNXHelper.GetServiceType(dgram))
{
case KNXHelper.SERVICE_TYPE.CONNECT_RESPONSE:
ProcessConnectResponse(dgram);
break;
case KNXHelper.SERVICE_TYPE.CONNECTIONSTATE_RESPONSE:
ProcessConnectionStateResponse(dgram);
break;
case KNXHelper.SERVICE_TYPE.TUNNELLING_ACK:
ProcessTunnelingAck(dgram);
break;
case KNXHelper.SERVICE_TYPE.DISCONNECT_REQUEST:
ProcessDisconnectRequest(dgram);
break;
case KNXHelper.SERVICE_TYPE.TUNNELLING_REQUEST:
ProcessDatagramHeaders(dgram);
break;
}
}
catch (Exception e)
{
Console.Write(e.Message);
Console.Write(e.ToString());
Console.Write(e.StackTrace);
if (e.InnerException != null)
{
Console.Write(e.InnerException.Message);
Console.Write(e.ToString());
Console.Write(e.InnerException.StackTrace);
}
// ignore, missing warning information
}
}
internal void ProcessCEMI(KNXDatagram datagram, byte[] cemi)
{
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.message_code = cemi[0];
datagram.aditional_info_length = (int)cemi[1];
if (datagram.aditional_info_length > 0)
{
datagram.aditional_info = new byte[datagram.aditional_info_length];
for (int i = 0; i < datagram.aditional_info_length; i++)
{
datagram.aditional_info[i] = cemi[2 + i];
}
}
datagram.control_field_1 = cemi[2 + datagram.aditional_info_length];
datagram.control_field_2 = cemi[3 + datagram.aditional_info_length];
datagram.source_address = KNXHelper.GetIndividualAddress(new byte[] { cemi[4 + datagram.aditional_info_length], cemi[5 + datagram.aditional_info_length] });
if (KNXHelper.GetKNXDestinationAddressType(datagram.control_field_2).Equals(KNXHelper.KNXDestinationAddressType.INDIVIDUAL))
{
datagram.destination_address = KNXHelper.GetIndividualAddress(new byte[] { cemi[6 + datagram.aditional_info_length], cemi[7 + datagram.aditional_info_length] });
}
else
{
datagram.destination_address = KNXHelper.GetGroupAddress(new byte[] { cemi[6 + datagram.aditional_info_length], cemi[7 + datagram.aditional_info_length] }, KNXConnection.ThreeLevelGroupAddressing);
}
datagram.data_length = (int)cemi[8 + datagram.aditional_info_length];
datagram.apdu = new byte[datagram.data_length + 1];
for (int i = 0; i < datagram.apdu.Length; i++)
{
datagram.apdu[i] = cemi[9 + i + datagram.aditional_info_length];
}
datagram.data = KNXHelper.GetRawData(datagram.data_length, datagram.apdu);
if (KNXConnection.Debug)
{
Console.WriteLine("-----------------------------------------------------------------------------------------------------");
Console.WriteLine(BitConverter.ToString(cemi));
Console.WriteLine("Event Header Length: " + datagram.header_length);
Console.WriteLine("Event Protocol Version: " + datagram.protocol_version.ToString("x"));
Console.WriteLine("Event Service Type: 0x" + BitConverter.ToString(datagram.service_type).Replace("-", string.Empty));
Console.WriteLine("Event Total Length: " + datagram.total_length);
Console.WriteLine("Event Message Code: " + datagram.message_code.ToString("x"));
Console.WriteLine("Event Aditional Info Length: " + datagram.aditional_info_length);
if (datagram.aditional_info_length > 0)
{
Console.WriteLine("Event Aditional Info: 0x" + BitConverter.ToString(datagram.aditional_info).Replace("-", string.Empty));
}
Console.WriteLine("Event Control Field 1: " + Convert.ToString(datagram.control_field_1, 2));
Console.WriteLine("Event Control Field 2: " + Convert.ToString(datagram.control_field_2, 2));
Console.WriteLine("Event Source Address: " + datagram.source_address);
Console.WriteLine("Event Destination Address: " + datagram.destination_address);
Console.WriteLine("Event Data Length: " + datagram.data_length);
Console.WriteLine("Event APDU: 0x" + BitConverter.ToString(datagram.apdu).Replace("-", string.Empty));
Console.WriteLine("Event Data: " + datagram.data);
Console.WriteLine("-----------------------------------------------------------------------------------------------------");
}
if (datagram.message_code == 0x29)
{
int type = ((int)datagram.apdu[1]) >> 4;
if (type == 8)
{
this.KNXConnection.Event(datagram.source_address, datagram.destination_address, datagram.data);
}
else if (type == 4 || type == 0)
{
this.KNXConnection.Status(datagram.source_address, datagram.destination_address, datagram.data);
}
}
}
catch (Exception)
{
// ignore, missing warning information
}
}
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);
}
