public override bool ParseResponse(byte[] buffer)
{
if (!IsResponseOK(buffer))
{
// response not OK => do nothing
return(false);
}
m_networkAddress = AdapterHelper.UInt16FromXbeeFrame(buffer, DATA_OFFSET_IN_RESPONSE_BUFFER);
return(true);
}
protected bool IsResponseOK(byte[] buffer)
{
int offset = 0;
// verify cluster Id
offset = AdapterHelper.MAC_ADDR_LENGTH;
offset += AdapterHelper.NETWORK_ADDRESS_LENGTH;
offset += SOURCE_ENDPOINT.Length;
offset += DESTINATION_ENDPOINT.Length;
UInt16 tempValue = AdapterHelper.UInt16FromXbeeFrame(buffer, offset);
if (tempValue != m_responseClusterId)
{
return(false);
}
if (!m_isZdoCommand)
{
// there is nothing more to control for ZCL
//
// - cluster ID is hard to control (Phillips Hue light bulb respond with ZHA profile even though they are ZLL profile)
// - status of ZCL command is inside ZCL payload and depends on each ZCL command
return(true);
}
// verify profile Id
offset += DEFAULT_CLUSTER_ID.Length;
byte[] profileId = PROFILE_ID;
for (int index = 0; index < profileId.Length; index++)
{
if (buffer[index + offset] != profileId[index])
{
return(false);
}
}
// verify status only for response to ZDO command (ZDO notification don't have status)
if (!m_isNotification)
{
offset = GetZdoPayloadOffset() - ZIGBEE_STATUS_LENGTH;
if (buffer[offset] != ZdoHelper.ZDO_ERROR_SUCCESS)
{
return(false);
}
}
return(true);
}
private bool CheckResponse()
{
bool checkNextResponse = false;
int headerSize = 0;
bool signalResponseReceived = false;
byte[] response = null;
XBeeATCommand atCommand = null;
ZigBeeCommand zigBeeCommand = null;
lock (m_locker)
{
if (COMMAND_PREFIX[0] != m_currentResponse[0])
{
// response buffer is invalid => discard
m_currentResponse = null;
return(checkNextResponse);
}
headerSize = COMMAND_PREFIX.Length + sizeof(UInt16);
if (m_currentResponse.Length <= headerSize)
{
// not enough bytes => wait for more
return(checkNextResponse);
}
// get size of response
int payloadLength = (int)AdapterHelper.UInt16FromXbeeFrame(m_currentResponse, COMMAND_PREFIX.Length);
int fullResponseLength = payloadLength + headerSize + CHECKSUM_LENGTH;
if (m_currentResponse.Length < fullResponseLength)
{
// not enough bytes => wait for more
return(checkNextResponse);
}
// verify checksum
if (IsCheckSumOk(ref m_currentResponse, headerSize, payloadLength + CHECKSUM_LENGTH))
{
// trace Rx buffer to debug output
Logger.TraceRxBuffer(m_currentResponse);
// get frame type
byte frameType = m_currentResponse[headerSize];
// find corresponding command or corresponding notification
if (frameType == AT_COMMAND_LOCAL_RECEIVE[0] ||
frameType == AT_COMMAND_REMOTE_RECEIVE[0])
{
// get command ID
byte commandId = m_currentResponse[headerSize + AT_COMMAND_LOCAL_RECEIVE.Length];
if (m_pendingATCmdList.TryGetValue(commandId, out atCommand))
{
Debug.WriteLineIf(Logger.IsVerbose(), "got response", atCommand.ToString());
// command found => parse response and remove from list
int responseHeaderLength = sizeof(byte) + AT_COMMAND_LOCAL_RECEIVE.Length;
payloadLength -= responseHeaderLength;
response = new byte[payloadLength];
Array.Copy(m_currentResponse, headerSize + responseHeaderLength, response, 0, payloadLength);
atCommand.ParseResponse(response);
RemovePendingATCmd(commandId);
signalResponseReceived = true;
}
else
{
Debug.WriteLineIf(Logger.IsVerbose(), "unmanaged response to AT COMMAND or AT COMMAND notification");
}
}
else if (frameType == EXPLICIT_RX_INDICATOR[0])
{
int responseHeaderLength = sizeof(byte);
payloadLength -= responseHeaderLength;
response = new byte[payloadLength];
Array.Copy(m_currentResponse, headerSize + responseHeaderLength, response, 0, payloadLength);
byte zdoSequenceNumber = m_currentResponse[headerSize + EXPLICIT_RX_INDICATOR.Length + ZigBeeCommand.GetSequenceNumberOffestInZdoFrame()];
byte zclSequenceNumber = m_currentResponse[headerSize + EXPLICIT_RX_INDICATOR.Length + ZigBeeCommand.GetSequenceNumberOffestInZclFrame()];
if ((m_pendingZigBeeCmdList.TryGetValue(zdoSequenceNumber, out zigBeeCommand) && zigBeeCommand.IsZdoCommand)
||
(m_pendingZigBeeCmdList.TryGetValue(zclSequenceNumber, out zigBeeCommand) && !zigBeeCommand.IsZdoCommand))
{
Debug.WriteLineIf(Logger.IsVerbose(), "got response to ZDO or ZCL command", zigBeeCommand.ToString());
zigBeeCommand.ParseResponse(response);
if (zigBeeCommand.IsZdoCommand)
{
RemovePendingZigBeeCmd(zdoSequenceNumber);
}
else
{
RemovePendingZigBeeCmd(zclSequenceNumber);
}
signalResponseReceived = true;
}
else
{
// check if this is an awaited notification
foreach (var notification in m_ZigBeeNotificationList)
{
// "try" parsing response to figure out if it
// correspond to a awaited notification
if (notification.Value.ParseResponse(response))
{
// corresponding notification found
Debug.WriteLineIf(Logger.IsVerbose(), "notification of ZDO or ZCL command", notification.Value.ToString());
break;
}
}
Debug.WriteLineIf(Logger.IsVerbose(), "unmanaged response to ZDO or ZCL command");
}
}
else
{
Debug.WriteLineIf(Logger.IsVerbose(), "received frame OK but not handled");
}
}
// remove response from buffer
ClearResponseBuffer(fullResponseLength);
if (m_currentResponse != null &&
m_currentResponse.Length != 0)
{
checkNextResponse = true;
}
}
if (signalResponseReceived)
{
if (null != atCommand)
{
atCommand.SignalResponseReceive();
}
else if (null != zigBeeCommand)
{
zigBeeCommand.SignalResponseReceive();
}
}
return(checkNextResponse);
}
public override bool ParseResponse(byte[] buffer)
{
SOURCE_INFO sourceInfo = new SOURCE_INFO();
// verify command Id
int offset = GetZclCommandIdOffset(ref buffer);
if (COMMAND_ID_REPORT_ATTRIBUTES != buffer[offset])
{
return(false);
}
if (OnReception == null)
{
// can't signal anything
// however this is not an error => return true
return(true);
}
// get Mac address, network address, endpoint Id and cluster Id of source
offset = 0;
sourceInfo.macAddress = AdapterHelper.UInt64FromXbeeFrame(buffer, offset);
offset = AdapterHelper.MAC_ADDR_LENGTH;
sourceInfo.networkAddress = AdapterHelper.UInt16FromXbeeFrame(buffer, offset);
offset += AdapterHelper.NETWORK_ADDRESS_LENGTH;
sourceInfo.endpointId = buffer[offset];
offset++;
// skip destination end point
offset++;
sourceInfo.clusterId = AdapterHelper.UInt16FromXbeeFrame(buffer, offset);
string strBuffer = "";
foreach (byte b in buffer)
{
strBuffer = strBuffer + b.ToString() + " ";
}
loggingServices.WriteLine <ZclReportAttributes>("strBuffer = [" + strBuffer + "]");
loggingServices.WriteLine <ZclReportAttributes>("macAddress = [" + sourceInfo.macAddress + "]");
loggingServices.WriteLine <ZclReportAttributes>("networkAddress = [" + sourceInfo.networkAddress + "]");
loggingServices.WriteLine <ZclReportAttributes>("endpointId = [" + sourceInfo.endpointId + "]");
loggingServices.WriteLine <ZclReportAttributes>("clusterId = [" + sourceInfo.clusterId + "]");
// parse ZCL payload
offset = GetZclPayloadOffset(ref buffer);
loggingServices.WriteLine <ZclReportAttributes>("offset of addributeId = [" + offset + "]");
while (offset < buffer.Length)
{
object value = null;
// from ZCL report attribute payload
// - 1st byte is the attribute Id
// - 2nd byte indicates the type
// - following byte(s) contain the value
UInt16 attributeId = AdapterHelper.UInt16FromZigBeeFrame(buffer, offset);
loggingServices.WriteLine <ZclReportAttributes>("attributeId = [" + attributeId + "]");
offset += sizeof(UInt16);
byte type = buffer[offset];
offset += sizeof(byte);
loggingServices.WriteLine <ZclReportAttributes>("offset of value = [" + offset + "]");
if (!ZclHelper.GetValue(type, ref buffer, ref offset, out value))
{
// give up if attribute can't be retrieved
break;
}
// execute notification callback asynchronously
Task.Run(() => { OnReception(sourceInfo, attributeId, value); });
}
return(true);
}
public override bool ParseResponse(byte[] buffer)
{
if (m_commandList.Count == 0)
{
// no server command registered
return(false);
}
// get Mac address, endpoint Id, cluster Id and command Id of source
int offset = 0;
UInt64 macAddress = AdapterHelper.UInt64FromXbeeFrame(buffer, offset);
offset = AdapterHelper.MAC_ADDR_LENGTH;
// skip network address (mac address is enough)
offset += AdapterHelper.NETWORK_ADDRESS_LENGTH;
byte endpointId = buffer[offset];
offset++;
// skip destination end point
offset++;
UInt16 clusterId = AdapterHelper.UInt16FromXbeeFrame(buffer, offset);
offset = GetZclCommandIdOffset(ref buffer);
byte commandId = buffer[offset];
// find element that matches Mac address, network address, endpoint Id and cluster Id
var element = Find(macAddress, endpointId, clusterId, commandId);
if (element == null)
{
// no corresponding element for that Zcl server command
return(false);
}
if (element.OnReception == null)
{
// no notification hence nothing else to do
return(true);
}
// get parameters
offset = GetZclPayloadOffset(ref buffer);
// fill in out parameters
foreach (var parameter in element.ParamList)
{
object value;
if (!ZclHelper.GetValue(parameter.ZigBeeType, ref buffer, ref offset, out value))
{
// can't get one of the out parameters => nothing else to do
// note that return value is true because server command has been found but can't be parsed
return(true);
}
parameter.Data = value;
}
// execute notification callback asynchronously
Task.Run(() => { element.OnReception(element); });
return(true);
}