public static void DeviceDsmInitializeOutput([NativeTypeName("PDEVICE_DSM_DEFINITION")] DEVICE_DSM_DEFINITION *Definition, [NativeTypeName("PDEVICE_DSM_OUTPUT")] DEVICE_MANAGE_DATA_SET_ATTRIBUTES_OUTPUT *Output, [NativeTypeName("DWORD")] uint OutputLength, [NativeTypeName("DWORD")] uint Flags)
{
uint Bytes = 36;
Unsafe.InitBlockUnaligned((Output), 0, (OutputLength));
Output->Size = unchecked (Bytes);
Output->Action = Definition->Action;
Output->Flags = Flags;
if (Definition->OutputBlockLength != 0)
{
unchecked (Bytes) = unchecked (((Bytes) + ((Definition->OutputBlockAlignment) - 1)) / (Definition->OutputBlockAlignment) * (Definition->OutputBlockAlignment));
Output->OutputBlockOffset = unchecked (Bytes);
Output->OutputBlockLength = unchecked (OutputLength - Bytes);
}
return;
}
public static byte DeviceDsmValidateOutput([NativeTypeName("PDEVICE_DSM_DEFINITION")] DEVICE_DSM_DEFINITION *Definition, [NativeTypeName("PDEVICE_DSM_OUTPUT")] DEVICE_MANAGE_DATA_SET_ATTRIBUTES_OUTPUT *Output, [NativeTypeName("DWORD")] uint OutputLength)
{
uint Max = 0;
uint Min = 0;
byte Valid = 0;
if (Definition->Action != Output->Action)
{
goto Cleanup;
}
if (Definition->HasOutput == 0)
{
goto Cleanup;
}
if (Definition->OutputBlockLength != 0)
{
Min = unchecked ((uint)(sizeof(DEVICE_MANAGE_DATA_SET_ATTRIBUTES_OUTPUT)));
Max = OutputLength;
if (Output->OutputBlockOffset < Min || Output->OutputBlockOffset > Max || (Output->OutputBlockOffset % Definition->OutputBlockAlignment) != 0)
{
goto Cleanup;
}
Min = Definition->OutputBlockLength;
Max = OutputLength - Output->OutputBlockOffset;
if (Output->OutputBlockLength < Min || Output->OutputBlockLength > Max)
{
goto Cleanup;
}
}
else
{
if (Output->OutputBlockOffset != 0 || Output->OutputBlockLength != 0)
{
goto Cleanup;
}
}
Valid = 1;
Cleanup:
return(Valid);
}
public static void *DeviceDsmOutputBlock([NativeTypeName("PDEVICE_DSM_OUTPUT")] DEVICE_MANAGE_DATA_SET_ATTRIBUTES_OUTPUT *Output)
{
return((void *)((nuint)(Output) + Output->OutputBlockOffset));
}
