/// <summary>
/// Decode the specified PAC_TYPE buffer into an instance of PacInfoBuffer,
/// according to specified PAC_INFO_BUFFER native structure.
/// </summary>
/// <param name="nativePacInfoBuffer">The specified PAC_INFO_BUFFER native structure.</param>
/// <param name="buffer">The specified PAC_TYPE buffer.</param>
/// <returns>The decoded instance of PacInfoBuffer.</returns>
static internal PacInfoBuffer DecodeBuffer(PAC_INFO_BUFFER nativePacInfoBuffer, byte[] buffer)
{
PacInfoBuffer pacInfoBuffer = CreatePacInfoBuffer(nativePacInfoBuffer.ulType);
pacInfoBuffer.DecodeBuffer(
buffer,
(int)nativePacInfoBuffer.Offset,
(int)nativePacInfoBuffer.cbBufferSize);
return(pacInfoBuffer);
}
/// <summary>
/// Construct an instance of current class by decoding specified bytes.
/// </summary>
/// <param name="buffer">The specified bytes.</param>
internal PacType(byte[] buffer)
{
NativePacType = PacUtility.MemoryToObject <PACTYPE>(buffer);
pacInfoBuffers = new PacInfoBuffer[NativePacType.Buffers.Length];
for (int i = 0; i < NativePacType.Buffers.Length; ++i)
{
if (NativePacType.Buffers[i].cbBufferSize > 0)
{
PacInfoBuffers[i] = PacInfoBuffer.DecodeBuffer(
NativePacType.Buffers[i],
buffer);
}
else
{
PacInfoBuffers[i] = null;
}
}
}
/// <summary>
/// In constructor, initialize the member PacInfoBuffer array.
/// </summary>
/// <param name="serverSignatureType">The specified
/// Server Signature Type.</param>
/// <param name="kdcSignatureType">The specified
/// KDC Signature Type.</param>
/// <param name="buffers">PacInfoBuffers not including signatures.</param>
private void InitializePacInfoBuffers(
PAC_SIGNATURE_DATA_SignatureType_Values serverSignatureType,
PAC_SIGNATURE_DATA_SignatureType_Values kdcSignatureType,
PacInfoBuffer[] buffers)
{
// allocate 2 more buffers for server signature and KDC signature.
pacInfoBuffers = new PacInfoBuffer[buffers.Length + 2];
for (int i = 0; i < buffers.Length; i++)
{
pacInfoBuffers[i] = buffers[i];
}
// construct a n empty server signature
PacServerSignature serverSign = new PacServerSignature();
serverSign.NativePacSignatureData.SignatureType = serverSignatureType;
serverSign.NativePacSignatureData.Signature = new byte[0];
pacInfoBuffers[pacInfoBuffers.Length - 2] = serverSign;
// construct a n empty KDC signature
PacKdcSignature kdcSign = new PacKdcSignature();
kdcSign.NativePacSignatureData.SignatureType = kdcSignatureType;
kdcSign.NativePacSignatureData.Signature = new byte[0];
pacInfoBuffers[pacInfoBuffers.Length - 1] = kdcSign;
}