private void btnSendPkt_Click(object sender, EventArgs e)
{
if (_remote_data_endpoint == null)
{
MessageBox.Show("No EIB Client is connected. cannot sent packets.", "Error", MessageBoxButtons.OK);
return;
}
if (this.tbValue.Text == null || this.tbValue.Text.Length == 0)
{
MessageBox.Show("No value was provided. you must enter the cEMI frame value to send", "Error", MessageBoxButtons.OK);
return;
}
if (!hex_regex.IsMatch(this.tbValue.Text))
{
MessageBox.Show("The cEMI frame value is not valid HEX format.", "Error", MessageBoxButtons.OK);
return;
}
for (int i = 0; i < this.nudNumPkts.Value; ++i)
{
EIBAddress dst_addr;
EIBAddress src_addr = new EIBAddress(this.tbSrcAddress.Text);
if (this.checkBox1.Checked)
{
dst_addr = EIBAddress.GetRandomAddress();
}
else
{
dst_addr = new EIBAddress(this.tbDestAddress.Text);
}
CemiFrame frame = new CemiFrame(src_addr,
dst_addr,
StringToByteArray(this.tbValue.Text),
cbNeedAck.Checked);
byte[] data = null;
switch (_mode)
{
case DEVICE_MODE.MODE_TUNNELING:
TunnelRequest req = new TunnelRequest(frame, _send_sequence);
data = req.ToByteArray();
break;
case DEVICE_MODE.MODE_ROUTING:
RoutingIndication roi = new RoutingIndication(frame);
data = roi.ToByteArray();
break;
}
_sock.SendTo(data, _remote_data_endpoint);
LogSend(String.Format("Data packet. Dest addr: {0} Value 0x{1}", dst_addr.ToString(), this.tbValue.Text));
System.Threading.Thread.Sleep(10);
}
}
private bool SendReply(Stream s)
{
EIBHeader header = new EIBHeader(s);
s.Position = 0;
bool res = false;
switch (header.mc)
{
case EIBMessages.EIB_MC_CONNECT_REQUEST:
ConnectRequest creq = new ConnectRequest(s);
_remote_data_endpoint = creq.data_endpoint.endpoint;
LogReceive("Connect Request");
ConnectRepsonse cresp = new ConnectRepsonse(_local_endpoint);
_sock.SendTo(cresp.ToByteArray(),creq.control_endpoint.endpoint);
LogSend("Connect Response");
_connected = true;
break;
case EIBMessages.EIB_MC_CONNECTION_STATE_REQUEST:
ConnectionStateRequest csreq = new ConnectionStateRequest(s);
LogReceive("Connection State Request");
ConnectionStateResponse csresp = new ConnectionStateResponse();
_sock.SendTo(csresp.ToByteArray(), csreq.control_endpoint.endpoint);
LogSend("Connection State Response");
break;
case EIBMessages.EIB_MC_DISCONNECT_REQUEST:
DisconnectRequest disreq = new DisconnectRequest(s);
LogReceive("Disconnect Request");
DisconnectResponse disresp = new DisconnectResponse();
_sock.SendTo(disresp.ToByteArray(), disreq.control_endpoint.endpoint);
LogSend("Dissconnect Response");
_restart_now = true;
_connected = false;
break;
case EIBMessages.EIB_MC_SEARCH_REQUEST:
LogReceive("Search Request");
SearchRequest sreq = new SearchRequest(s);
SearchResponse sresp = new SearchResponse(_local_endpoint, _current_if.GetPhysicalAddress());
_sock.SendTo(sresp.ToByteArray(), sreq._discovery_endpoint.endpoint);
LogSend("Search Response");
_connected = true;
break;
case EIBMessages.EIB_MC_TUNNEL_REQUEST:
TunnelRequest req = new TunnelRequest(s);
if (req._frame._apci == 0x0)
{
string log = String.Format("[Group Read Request] Dest: {0}", req._frame._dst.ToString());
LogReceive(log);
}
else
{
string log = String.Format("[Tunnel Request] Dest: {0}, Value: 0x{1}", req._frame._dst.ToString(), String.Format("{0:X}", req._frame._apci));
LogReceive(log);
}
if (req._frame.IsAckNeeded)
{
TunnelAck ack = new TunnelAck(_recv_sequence);
_sock.SendTo(ack.ToByteArray(), _remote_data_endpoint);
++_recv_sequence;
LogSend("Tunnel Ack");
}
TunnelRequest tunnel_request = new TunnelRequest(req._frame, _send_sequence);
tunnel_request._frame._mc = EIBMessages.L_DATA_CON;
if (_cache != null)
{
lock (_sync)
{
foreach (var item in _cache.List)
{
if (tunnel_request._frame._dst.ToString() == item.Address && item.NumBytes > 1)
{
tunnel_request._frame._addil_data = new byte[item.NumBytes - 1];
tunnel_request._frame._apci_length = (byte)item.NumBytes;
break;
}
}
}
}
if (req._frame._apci == 0x0)
{
res = true;
}
LogSend(String.Format("Tunnel Data confirmation: {0}", tunnel_request._frame._dst.ToString()));
_sock.SendTo(tunnel_request.ToByteArray(), _remote_data_endpoint);
break;
case EIBMessages.EIB_MC_TUNNEL_ACK:
LogReceive("Ack");
++_send_sequence;
break;
case EIBMessages.EIB_MC_ROUTING_INDICATION:
LogReceive("routing indication");
break;
default:
LogReceive("Unknown message code!");
break;
//throw new NotImplementedException();
}
return res;
}
void ListenerThread_DoWork(object sender, DoWorkEventArgs e)
{
EndPoint endpoint = new IPEndPoint(IPAddress.Loopback, 0);
TunnelRequest orig_req = null;
byte[] buffer = new byte[256];
bool send_ind = false;
int i = 0;
while (!this.ListenerThread.CancellationPending)
{
if (!_sock.Poll(1000000, SelectMode.SelectRead))
{
continue;
}
try
{
_sock.ReceiveFrom(buffer, ref endpoint);
}
catch (SocketException ex)
{
this.Log("Socket Exception", ex.Message);
return;
}
MemoryStream stream = new MemoryStream(buffer);
send_ind = SendReply(stream);
if (send_ind || i > 0)
{
if (send_ind)
{
stream.Position = 0;
orig_req = new TunnelRequest(stream);
}
i++;
}
if (_mode == DEVICE_MODE.MODE_TUNNELING && i == 2)
{
i = 0;
TunnelRequest tunnel_request = new TunnelRequest(orig_req._frame, _send_sequence);
tunnel_request._frame._mc = EIBMessages.MC_LDATA_IND;
tunnel_request._frame._apci = 0x41;
if (_cache != null)
{
lock (_sync)
{
foreach (var item in _cache.List)
{
if (tunnel_request._frame._dst.ToString() == item.Address && item.NumBytes > 1)
{
tunnel_request._frame._addil_data = new byte[item.NumBytes - 1];
tunnel_request._frame._apci_length = (byte)item.NumBytes;
break;
}
}
}
}
_sock.SendTo(tunnel_request.ToByteArray(), _remote_data_endpoint);
LogSend(String.Format("Tunnel Data indication: {0} Value length: {1}",
tunnel_request._frame._dst.ToString(), tunnel_request._frame._apci_length));
}
if (!_connected && _mode != DEVICE_MODE.MODE_ROUTING)
{
break;
}
}
}
private void btnSendPkt_Click(object sender, EventArgs e)
{
if (_remote_data_endpoint == null)
{
MessageBox.Show("No EIB Client is connected. cannot sent packets.", "Error", MessageBoxButtons.OK);
return;
}
if (this.tbValue.Text == null || this.tbValue.Text.Length == 0)
{
MessageBox.Show("No value was provided. you must enter the cEMI frame value to send", "Error", MessageBoxButtons.OK);
return;
}
if (!hex_regex.IsMatch(this.tbValue.Text))
{
MessageBox.Show("The cEMI frame value is not valid HEX format.", "Error", MessageBoxButtons.OK);
return;
}
for (int i = 0; i < this.nudNumPkts.Value; ++i)
{
EIBAddress dst_addr;
EIBAddress src_addr = new EIBAddress(this.tbSrcAddress.Text);
if (this.checkBox1.Checked)
dst_addr = EIBAddress.GetRandomAddress();
else
dst_addr = new EIBAddress(this.tbDestAddress.Text);
CemiFrame frame = new CemiFrame(src_addr,
dst_addr,
StringToByteArray(this.tbValue.Text),
cbNeedAck.Checked);
byte[] data = null;
switch (_mode)
{
case DEVICE_MODE.MODE_TUNNELING:
TunnelRequest req = new TunnelRequest(frame, _send_sequence);
data = req.ToByteArray();
break;
case DEVICE_MODE.MODE_ROUTING:
RoutingIndication roi = new RoutingIndication(frame);
data = roi.ToByteArray();
break;
}
_sock.SendTo(data, _remote_data_endpoint);
LogSend(String.Format("Data packet. Dest addr: {0} Value 0x{1}", dst_addr.ToString(), this.tbValue.Text));
System.Threading.Thread.Sleep(10);
}
}
private bool SendReply(Stream s)
{
EIBHeader header = new EIBHeader(s);
s.Position = 0;
bool res = false;
switch (header.mc)
{
case EIBMessages.EIB_MC_CONNECT_REQUEST:
ConnectRequest creq = new ConnectRequest(s);
_remote_data_endpoint = creq.data_endpoint.endpoint;
LogReceive("Connect Request");
ConnectRepsonse cresp = new ConnectRepsonse(_local_endpoint);
_sock.SendTo(cresp.ToByteArray(), creq.control_endpoint.endpoint);
LogSend("Connect Response");
_connected = true;
break;
case EIBMessages.EIB_MC_CONNECTION_STATE_REQUEST:
ConnectionStateRequest csreq = new ConnectionStateRequest(s);
LogReceive("Connection State Request");
ConnectionStateResponse csresp = new ConnectionStateResponse();
_sock.SendTo(csresp.ToByteArray(), csreq.control_endpoint.endpoint);
LogSend("Connection State Response");
break;
case EIBMessages.EIB_MC_DISCONNECT_REQUEST:
DisconnectRequest disreq = new DisconnectRequest(s);
LogReceive("Disconnect Request");
DisconnectResponse disresp = new DisconnectResponse();
_sock.SendTo(disresp.ToByteArray(), disreq.control_endpoint.endpoint);
LogSend("Dissconnect Response");
_restart_now = true;
_connected = false;
break;
case EIBMessages.EIB_MC_SEARCH_REQUEST:
LogReceive("Search Request");
SearchRequest sreq = new SearchRequest(s);
SearchResponse sresp = new SearchResponse(_local_endpoint, _current_if.GetPhysicalAddress());
_sock.SendTo(sresp.ToByteArray(), sreq._discovery_endpoint.endpoint);
LogSend("Search Response");
_connected = true;
break;
case EIBMessages.EIB_MC_TUNNEL_REQUEST:
TunnelRequest req = new TunnelRequest(s);
if (req._frame._apci == 0x0)
{
string log = String.Format("[Group Read Request] Dest: {0}", req._frame._dst.ToString());
LogReceive(log);
}
else
{
string log = String.Format("[Tunnel Request] Dest: {0}, Value: 0x{1}", req._frame._dst.ToString(), String.Format("{0:X}", req._frame._apci));
LogReceive(log);
}
if (req._frame.IsAckNeeded)
{
TunnelAck ack = new TunnelAck(_recv_sequence);
_sock.SendTo(ack.ToByteArray(), _remote_data_endpoint);
++_recv_sequence;
LogSend("Tunnel Ack");
}
TunnelRequest tunnel_request = new TunnelRequest(req._frame, _send_sequence);
tunnel_request._frame._mc = EIBMessages.L_DATA_CON;
if (_cache != null)
{
lock (_sync)
{
foreach (var item in _cache.List)
{
if (tunnel_request._frame._dst.ToString() == item.Address && item.NumBytes > 1)
{
tunnel_request._frame._addil_data = new byte[item.NumBytes - 1];
tunnel_request._frame._apci_length = (byte)item.NumBytes;
break;
}
}
}
}
if (req._frame._apci == 0x0)
{
res = true;
}
LogSend(String.Format("Tunnel Data confirmation: {0}", tunnel_request._frame._dst.ToString()));
_sock.SendTo(tunnel_request.ToByteArray(), _remote_data_endpoint);
break;
case EIBMessages.EIB_MC_TUNNEL_ACK:
LogReceive("Ack");
++_send_sequence;
break;
case EIBMessages.EIB_MC_ROUTING_INDICATION:
LogReceive("routing indication");
break;
default:
LogReceive("Unknown message code!");
break;
//throw new NotImplementedException();
}
return(res);
}
void ListenerThread_DoWork(object sender, DoWorkEventArgs e)
{
EndPoint endpoint = new IPEndPoint(IPAddress.Loopback, 0);
TunnelRequest orig_req = null;
byte[] buffer = new byte[256];
bool send_ind = false;
int i = 0;
while (!this.ListenerThread.CancellationPending)
{
if (!_sock.Poll(1000000, SelectMode.SelectRead))
{
continue;
}
try
{
_sock.ReceiveFrom(buffer, ref endpoint);
}
catch (SocketException ex)
{
this.Log("Socket Exception", ex.Message);
return;
}
MemoryStream stream = new MemoryStream(buffer);
send_ind = SendReply(stream);
if (send_ind || i > 0)
{
if (send_ind)
{
stream.Position = 0;
orig_req = new TunnelRequest(stream);
}
i++;
}
if (_mode == DEVICE_MODE.MODE_TUNNELING && i == 2)
{
i = 0;
TunnelRequest tunnel_request = new TunnelRequest(orig_req._frame, _send_sequence);
tunnel_request._frame._mc = EIBMessages.MC_LDATA_IND;
tunnel_request._frame._apci = 0x41;
if (_cache != null)
{
lock (_sync)
{
foreach (var item in _cache.List)
{
if (tunnel_request._frame._dst.ToString() == item.Address && item.NumBytes > 1)
{
tunnel_request._frame._addil_data = new byte[item.NumBytes - 1];
tunnel_request._frame._apci_length = (byte)item.NumBytes;
break;
}
}
}
}
_sock.SendTo(tunnel_request.ToByteArray(), _remote_data_endpoint);
LogSend(String.Format("Tunnel Data indication: {0} Value length: {1}",
tunnel_request._frame._dst.ToString(), tunnel_request._frame._apci_length));
}
if (!_connected && _mode != DEVICE_MODE.MODE_ROUTING)
{
break;
}
}
}