control.cpp

来自「智能卡的读写程序」· C++ 代码 · 共 48 行

// Control.cpp -- IOCTL handlers for Smart_Card driver
// Copyright (C) 1999, 2000 by Walter Oney
// All rights reserved

#include "stddcls.h"
#include "driver.h"
#include "ioctls.h"

///////////////////////////////////////////////////////////////////////////////

#pragma PAGEDCODE

NTSTATUS DispatchControl(PDEVICE_OBJECT fdo, PIRP Irp)
	{							// DispatchControl
	PAGED_CODE();
	PDEVICE_EXTENSION pdx = (PDEVICE_EXTENSION) fdo->DeviceExtension;

	NTSTATUS status = STATUS_SUCCESS;
	ULONG info = 0;

	PIO_STACK_LOCATION stack = IoGetCurrentIrpStackLocation(Irp);
	ULONG cbin = stack->Parameters.DeviceIoControl.InputBufferLength;
	ULONG cbout = stack->Parameters.DeviceIoControl.OutputBufferLength;
	ULONG code = stack->Parameters.DeviceIoControl.IoControlCode;

	switch (code)
		{						// process request

	case IOCTL_GET_VERSON:				// code == 0x800
		{						// IOCTL_GET_VERSON

		// TODO insert code here to handle this IOCTL, which uses METHOD_BUFFERED

		break;
		}						// IOCTL_GET_VERSON

	default:
		status = STATUS_INVALID_DEVICE_REQUEST;
		break;

		}						// process request

	return CompleteRequest(Irp, status, info);
	}							// DispatchControl

#pragma LOCKEDCODE				// force inline functions into nonpaged code