/// <summary>
/// [TD Reference 3.2.5.3.4]
/// Decode MCS Connect Response PDU with GCC Conference Create Response
/// </summary>
/// <param name="data">data to be parsed</param>
/// <returns>decoded MCS Connect Response PDU with GCC Conference Create Response PDU</returns>
public StackPacket DecodeMcsConnectResponsePDU(byte[] data)
{
// initialize
int currentIndex = 0;
Server_MCS_Connect_Response_Pdu_with_GCC_Conference_Create_Response pdu =
new Server_MCS_Connect_Response_Pdu_with_GCC_Conference_Create_Response();
// McsConnectResponse: TpktHeader
pdu.tpktHeader = ParseTpktHeader(data, ref currentIndex);
// McsConnectResponse: X224
pdu.x224Data = ParseX224Data(data, ref currentIndex);
// T125 Data: decode McsConnectResponse
int t125DataLength = data.Length - currentIndex;
if (t125DataLength <= 0)
{
throw new FormatException(ConstValue.ERROR_MESSAGE_DATA_INDEX_OUT_OF_RANGE);
}
byte[] t125Data = new byte[t125DataLength];
Array.Copy(data, currentIndex, t125Data, 0, t125Data.Length);
Connect_Response mcsConnectResponse = new Connect_Response();
Asn1DecodingBuffer decodeBuffer = new Asn1DecodingBuffer(t125Data);
mcsConnectResponse.BerDecode(decodeBuffer);
// McsConnectResponse:result
pdu.mcsCrsp.result = (int)mcsConnectResponse.result.Value;
byte[] userData = mcsConnectResponse.userData.ByteArrayValue;
// T125 Data: decode McsConnectResponse's user data
Asn1DecodingBuffer connectDataBuffer = new Asn1DecodingBuffer(userData);
ConnectData connectData = new ConnectData();
connectData.PerDecode(connectDataBuffer);
// T125 Data: get Gcc data
int gccDataLength = userData.Length - ConstValue.GCC_DATA_OFFSET;
if (gccDataLength <= 0)
{
throw new FormatException(ConstValue.ERROR_MESSAGE_DATA_INDEX_OUT_OF_RANGE);
}
byte[] gccData = new byte[gccDataLength];
Array.Copy(userData, ConstValue.GCC_DATA_OFFSET, gccData, 0, gccData.Length);
// T125 Data: decode Gcc user data
ConnectGCCPDU gccPdu = new ConnectGCCPDU();
Asn1DecodingBuffer gccPduBuffer = new Asn1DecodingBuffer(gccData);
gccPdu.PerDecode(gccPduBuffer);
// McsConnectResponse: H221Key
ConferenceCreateResponse conferenceResponse = (ConferenceCreateResponse)gccPdu.GetData();
H221NonStandardIdentifier identifier =
(H221NonStandardIdentifier)conferenceResponse.userData.Elements[0].key.GetData();
pdu.mcsCrsp.gccPdu.H221Key = Encoding.ASCII.GetString(identifier.ByteArrayValue);
// McsConnectResponse: ccrResult
pdu.mcsCrsp.gccPdu.ccrResult = (int)conferenceResponse.result.Value;
// McsConnectResponse: nodeID
pdu.mcsCrsp.gccPdu.nodeID = (int)conferenceResponse.nodeID.Value;
// McsConnectResponse: tag
pdu.mcsCrsp.gccPdu.tag = (int)conferenceResponse.tag.Value;
// T125 Data: get Gcc user data
byte[] gccUserData = conferenceResponse.userData.Elements[0].value.ByteArrayValue;
// Reset current index
currentIndex = 0;
while (currentIndex < gccUserData.Length)
{
// Peek data type
int tempIndex = currentIndex;
TS_UD_HEADER_type_Values type =
(TS_UD_HEADER_type_Values)ParseUInt16(gccUserData, ref tempIndex, false);
// Parse data by type
switch (type)
{
case TS_UD_HEADER_type_Values.SC_CORE:
pdu.mcsCrsp.gccPdu.serverCoreData = ParseTsUdScCore(gccUserData, ref currentIndex);
break;
case TS_UD_HEADER_type_Values.SC_NET:
pdu.mcsCrsp.gccPdu.serverNetworkData = ParseTsUdScNet(gccUserData, ref currentIndex);
break;
case TS_UD_HEADER_type_Values.SC_SECURITY:
pdu.mcsCrsp.gccPdu.serverSecurityData = ParseTsUdScSec1(gccUserData, ref currentIndex);
break;
case TS_UD_HEADER_type_Values.SC_MCS_MSGCHANNEL:
pdu.mcsCrsp.gccPdu.serverMessageChannelData = ParseTsUdScMSGChannel(gccUserData, ref currentIndex);
break;
case TS_UD_HEADER_type_Values.SC_MULTITRANSPORT:
pdu.mcsCrsp.gccPdu.serverMultitransportChannelData = ParseTsUdScMultiTransport(gccUserData, ref currentIndex);
break;
default:
throw new FormatException(ConstValue.ERROR_MESSAGE_ENUM_UNRECOGNIZED);
}
}
// Check if data length exceeded expectation
VerifyDataLength(gccUserData.Length, currentIndex, ConstValue.ERROR_MESSAGE_DATA_LENGTH_EXCEEDED);
return pdu;
}
/// <summary>
/// Encode this structure into byte array.
/// </summary>
/// <returns>The byte array of the structure.</returns>
public override byte[] ToBytes()
{
List<byte> totalBuffer = new List<byte>();
RdpbcgrEncoder.EncodeStructure(totalBuffer, tpktHeader);
RdpbcgrEncoder.EncodeStructure(totalBuffer, x224Data);
if (mcsCrsp != null)
{
byte[] gccData = EncodeGccRspData(mcsCrsp.gccPdu);
#region Filling MCS Connect Response PDU
Connect_Response connectResponse = new Connect_Response();
connectResponse.result = new Result(mcsCrsp.result);
connectResponse.calledConnectId = new Asn1Integer(mcsCrsp.calledConnectId);
connectResponse.domainParameters = new DomainParameters(new Asn1Integer(mcsCrsp.domainParameters.maxChannelIds),
new Asn1Integer(mcsCrsp.domainParameters.maxUserIds),
new Asn1Integer(mcsCrsp.domainParameters.maxTokenIds),
new Asn1Integer(mcsCrsp.domainParameters.numPriorities),
new Asn1Integer(mcsCrsp.domainParameters.minThroughput),
new Asn1Integer(mcsCrsp.domainParameters.maxHeight),
new Asn1Integer(mcsCrsp.domainParameters.maxMcsPduSize),
new Asn1Integer(mcsCrsp.domainParameters.protocolVersion));
connectResponse.userData = new Asn1OctetString(gccData);
#endregion Filling MCS Connect Response PDU
#region Encode MCS Connect Initial PDU
Asn1BerEncodingBuffer berEncodeBuffer = new Asn1BerEncodingBuffer();
connectResponse.BerEncode(berEncodeBuffer);
#endregion MCS Connect Initial PDU
RdpbcgrEncoder.EncodeBytes(totalBuffer, berEncodeBuffer.Data);
}
byte[] encodedBytes = RdpbcgrUtility.ToBytes(totalBuffer);
// ToDo: Ugly dump message code here
// ETW Provider Dump Code
RdpbcgrUtility.ETWProviderDump(this.GetType().Name, encodedBytes);
return encodedBytes;
}
