| public static GetUInt32 ( byte buffer, int &index, bool isBigEndian ) : uint | ||
| buffer | byte | the buffer stores the value. |
| index | int | the index of start to parse |
| isBigEndian | bool | order of bytes. If it's big endian, set it to true, else set it to false. |
| Результат | uint | |
/// <summary>
/// Decode MSG_GETBLKS message.
/// </summary>
/// <param name="data">Data to be decoded.</param>
/// <param name="index">Started index.</param>
/// <returns>The MSG_GETBLKS struct.</returns>
private MSG_GETBLKS DecodeMSG_GETBLKS(byte[] data, ref int index)
{
MSG_GETBLKS ret = new MSG_GETBLKS();
ret.SizeOfSegmentID = MarshalHelper.GetUInt32(data, ref index, false);
ret.SegmentID = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfSegmentID);
ret.ZeroPad = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfSegmentID % 4);
if (ret.ZeroPad == null)
{
ret.ZeroPad = new byte[0];
}
ret.ReqBlockRangeCount = MarshalHelper.GetUInt32(data, ref index, false);
ret.ReqBlockRanges = new BLOCK_RANGE[ret.ReqBlockRangeCount];
for (int i = 0; i < ret.ReqBlockRangeCount; i++)
{
ret.ReqBlockRanges[i].Index = MarshalHelper.GetUInt32(data, ref index, false);
ret.ReqBlockRanges[i].Count = MarshalHelper.GetUInt32(data, ref index, false);
}
ret.SizeOfDataForVrfBlock = MarshalHelper.GetUInt32(data, ref index, false);
ret.DataForVrfBlock = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfDataForVrfBlock);
if (ret.DataForVrfBlock == null)
{
ret.DataForVrfBlock = new byte[0];
}
return(ret);
}
/// <summary>
/// Decode message header.
/// </summary>
/// <param name="data">Data to be decoded.</param>
/// <param name="index">Started index.</param>
/// <returns>The MESSAGE_HEADER struct.</returns>
private MESSAGE_HEADER DecodeMessageHeader(byte[] data, ref int index)
{
MESSAGE_HEADER ret = new MESSAGE_HEADER();
ret.ProtVer.MinorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret.ProtVer.MajorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret.MsgType = (MsgType_Values)MarshalHelper.GetUInt32(data, ref index, false);
ret.MsgSize = MarshalHelper.GetUInt32(data, ref index, false);
ret.CryptoAlgoId = (CryptoAlgoId_Values)MarshalHelper.GetUInt32(data, ref index, false);
return(ret);
}
/// <summary>
/// Decode MSG_BLK message.
/// </summary>
/// <param name="data">Data to be decoded.</param>
/// <param name="index">Started index.</param>
/// <returns>The MSG_BLK struct.</returns>
private MSG_BLK DecodeMSG_BLK(byte[] data, ref int index)
{
MSG_BLK ret = new MSG_BLK();
ret.SizeOfSegmentId = MarshalHelper.GetUInt32(data, ref index, false);
ret.SegmentId = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfSegmentId);
ret.ZeroPad = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfSegmentId % 4);
if (ret.ZeroPad == null)
{
ret.ZeroPad = new byte[0];
}
ret.BlockIndex = MarshalHelper.GetUInt32(data, ref index, false);
ret.NextBlockIndex = MarshalHelper.GetUInt32(data, ref index, false);
ret.SizeOfBlock = MarshalHelper.GetUInt32(data, ref index, false);
ret.Block = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfBlock);
if (ret.Block == null)
{
ret.Block = new byte[0];
}
ret.ZeroPad2 = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfBlock % 4);
if (ret.ZeroPad2 == null)
{
ret.ZeroPad2 = new byte[0];
}
ret.SizeOfVrfBlock = MarshalHelper.GetUInt32(data, ref index, false);
ret.VrfBlock = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfVrfBlock);
if (ret.VrfBlock == null)
{
ret.VrfBlock = new byte[0];
}
ret.ZeroPad3 = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfVrfBlock % 4);
if (ret.ZeroPad3 == null)
{
ret.ZeroPad3 = new byte[0];
}
ret.SizeOfIVBlock = MarshalHelper.GetUInt32(data, ref index, false);
ret.IVBlock = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfIVBlock);
if (ret.IVBlock == null)
{
ret.IVBlock = new byte[0];
}
return(ret);
}
/// <summary>
/// Decode pack.
/// </summary>
/// <param name="rawdata">The rawdata.</param>
/// <returns>The PccrrPacket.</returns>
public override PccrrPacket Decode(byte[] rawdata)
{
if (rawdata == null)
{
throw new ArgumentNullException("rawdata");
}
if (rawdata.Length == 0)
{
throw new ArgumentException("The raw data should not be empty.");
}
PccrrNegoResponsePacket packet = new PccrrNegoResponsePacket();
int messageLength = 0;
messageLength = rawdata.Length;
if (messageLength > 0)
{
int index = 0;
byte[] data = rawdata;
RESPONSE_MESSAGE ret = new RESPONSE_MESSAGE();
ret.TRANSPORTRESPONSEHEADER.Size = MarshalHelper.GetUInt32(data, ref index, false);
MESSAGE_HEADER ret1 = new MESSAGE_HEADER();
ret1.ProtVer.MinorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret1.ProtVer.MajorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret1.MsgType = (MsgType_Values)MarshalHelper.GetUInt32(data, ref index, false);
ret1.MsgSize = MarshalHelper.GetUInt32(data, ref index, false);
ret1.CryptoAlgoId = (CryptoAlgoId_Values)MarshalHelper.GetUInt32(data, ref index, false);
MSG_NEGO_RESP ret2 = new MSG_NEGO_RESP();
ret2.MinSupporteProtocolVersion.MinorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret2.MinSupporteProtocolVersion.MajorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret2.MaxSupporteProtocolVersion.MinorVersion = MarshalHelper.GetUInt16(data, ref index, false);
ret2.MaxSupporteProtocolVersion.MajorVersion = MarshalHelper.GetUInt16(data, ref index, false);
packet.TransportResponseHeader = ret.TRANSPORTRESPONSEHEADER;
packet.MsgNegoResp = ret2;
packet.MessageHeader = ret1;
}
return(packet);
}
/// <summary>
/// Decode MSG_BLKLIST message.
/// </summary>
/// <param name="data">The data to be decoded.</param>
/// <param name="index">Started index.</param>
/// <returns>The MSG_BLKLIST struct.</returns>
private MSG_BLKLIST DecodeMSG_BLKLIST(byte[] data, ref int index)
{
MSG_BLKLIST ret = new MSG_BLKLIST();
ret.SizeOfSegmentId = MarshalHelper.GetUInt32(data, ref index, false);
ret.SegmentId = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfSegmentId);
ret.ZeroPad = MarshalHelper.GetBytes(data, ref index, (int)ret.SizeOfSegmentId % 4);
if (ret.ZeroPad == null)
{
ret.ZeroPad = new byte[0];
}
ret.BlockRangeCount = MarshalHelper.GetUInt32(data, ref index, false);
ret.BlockRanges = new BLOCK_RANGE[ret.BlockRangeCount];
for (int i = 0; i < ret.BlockRangeCount; i++)
{
ret.BlockRanges[i].Index = MarshalHelper.GetUInt32(data, ref index, false);
ret.BlockRanges[i].Count = MarshalHelper.GetUInt32(data, ref index, false);
}
ret.NextBlockIndex = MarshalHelper.GetUInt32(data, ref index, false);
return(ret);
}
/// <summary>
/// Decode response message.
/// </summary>
/// <param name="rawdata">The raw data.</param>
/// <returns>The PccrrPacket.</returns>
public PccrrPacket DecodeResponseMessage(byte[] rawdata)
{
if (rawdata == null)
{
throw new ArgumentNullException("rawdata");
}
if (rawdata.Length == 0)
{
throw new ArgumentException("The raw data should not be empty.");
}
int messageLength = 0;
messageLength = rawdata.Length;
PccrrPacket packet = null;
if (messageLength > 0)
{
int index = 0;
RESPONSE_MESSAGE ret = new RESPONSE_MESSAGE();
ret.TRANSPORTRESPONSEHEADER.Size = MarshalHelper.GetUInt32(rawdata, ref index, false);
ret.MESSAGEHEADER = this.DecodeMessageHeader(rawdata, ref index);
switch (ret.MESSAGEHEADER.MsgType)
{
case MsgType_Values.MSG_BLKLIST:
PccrrBLKLISTResponsePacket pccrrBLKLISTResponsePacket = new PccrrBLKLISTResponsePacket();
MSG_BLKLIST msgBLKLIST = this.DecodeMSG_BLKLIST(rawdata, ref index);
pccrrBLKLISTResponsePacket.TransportResponseHeader = ret.TRANSPORTRESPONSEHEADER;
pccrrBLKLISTResponsePacket.MsgBLKLIST = msgBLKLIST;
pccrrBLKLISTResponsePacket.MessageHeader = ret.MESSAGEHEADER;
packet = pccrrBLKLISTResponsePacket;
break;
case MsgType_Values.MSG_BLK:
PccrrBLKResponsePacket pccrrBLKResponsePacket = new PccrrBLKResponsePacket();
MSG_BLK msgBLK = this.DecodeMSG_BLK(rawdata, ref index);
pccrrBLKResponsePacket.TransportResponseHeader = ret.TRANSPORTRESPONSEHEADER;
pccrrBLKResponsePacket.MsgBLK = msgBLK;
pccrrBLKResponsePacket.MessageHeader = ret.MESSAGEHEADER;
packet = pccrrBLKResponsePacket;
break;
case MsgType_Values.MSG_NEGO_RESP:
PccrrNegoResponsePacket pccrrNegoResponsePacket = new PccrrNegoResponsePacket();
MSG_NEGO_RESP msgNEGORESP = this.DecodeMSG_NEGO_RESP(rawdata, ref index);
pccrrNegoResponsePacket.TransportResponseHeader = ret.TRANSPORTRESPONSEHEADER;
pccrrNegoResponsePacket.MsgNegoResp = msgNEGORESP;
pccrrNegoResponsePacket.MessageHeader = ret.MESSAGEHEADER;
packet = pccrrNegoResponsePacket;
break;
case MsgType_Values.MSG_SEGLIST:
PccrrSegListResponsePacket pccrrSegListResponsePacket = new PccrrSegListResponsePacket();
pccrrSegListResponsePacket.MsgSegList = TypeMarshal.ToStruct <MSG_SEGLIST>(rawdata, ref index);
pccrrSegListResponsePacket.TransportResponseHeader = ret.TRANSPORTRESPONSEHEADER;
pccrrSegListResponsePacket.MessageHeader = ret.MESSAGEHEADER;
packet = pccrrSegListResponsePacket;
break;
}
}
return(packet);
}