DeviceIoControl与驱动交互

部分代码由DDKWizard生成..代码风格跟我的不一样..可能看的有点蛋疼

请勿吐槽,小弟新手,正在学习,我相信一步一个脚印,可以走到理想

这个是应用程序部分

#include <WINDOWS.H>
#include <winioctl.h>
#include <STDIO.h>

#define IOCTL_TEST1 CTL_CODE(FILE_DEVICE_UNKNOWN,0x800,METHOD_BUFFERED,FILE_ANY_ACCESS)


int main(){
	
	HANDLE hDevice=CreateFile("\\\\.\\DRIVER12_DeviceName",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
	if (hDevice==INVALID_HANDLE_VALUE)
	{
		printf("fck! CreateFile() failed\n");
		return -1;
	}
	
	DWORD dwOP;
	
	char *pBufferIn=(char*)malloc(10);
	memset(pBufferIn,0xAA,10);
	char *pBufferOut=(char*)malloc(10);
	memset(pBufferOut,0,10);
	printf("IOCTL_TEST1 %X\n",IOCTL_TEST1);
	DeviceIoControl(hDevice,IOCTL_TEST1,pBufferIn,10,pBufferOut,10,&dwOP,NULL);
	
	printf("实际返回大小%d\n",dwOP);
	
	for (int i=0;i<(int)dwOP;i++)
		printf("%X ",*(pBufferOut+i) & 0XFF);
	
	
	CloseHandle(hDevice);
	getchar();
	return 0;
}

下面是驱动部分

#define IOCTL_TEST1 CTL_CODE(FILE_DEVICE_UNKNOWN,0x800,METHOD_BUFFERED,FILE_ANY_ACCESS)
#define DEVICE_NAME		"\\Device\\DRIVER12_DeviceName"
#define SYMLINK_NAME		"\\DosDevices\\DRIVER12_DeviceName"
PRESET_UNICODE_STRING(usDeviceName, DEVICE_NAME);
PRESET_UNICODE_STRING(usSymlinkName, SYMLINK_NAME);

NTSTATUS DRIVER12_DispatchDeviceControl(IN PDEVICE_OBJECT DeviceObject,IN PIRP Irp)
{

	KdPrint(("DRIVER12_DispatchDeviceControl()  hahahahah ternsoft.com"));
	NTSTATUS status = STATUS_SUCCESS;
	PIO_STACK_LOCATION irpSp = IoGetCurrentIrpStackLocation(Irp);

	KdPrint(("IoControlCode %X",(irpSp->Parameters.DeviceIoControl.IoControlCode)));
	UCHAR *pInput=(UCHAR*)Irp->AssociatedIrp.SystemBuffer;

	switch(irpSp->Parameters.DeviceIoControl.IoControlCode)
	{
		//     case IOCTL_DRIVER12_OPERATION:
		//         // status = SomeHandlerFunction(irpSp);
		//         break;
	case IOCTL_TEST1:
		KdPrint(("fck IOCTL_TEST1"));
		for (ULONG i=0;i<irpSp->Parameters.DeviceIoControl.InputBufferLength;i++){
			KdPrint(("%X",pInput[i]));
		}

		RtlFillMemory(Irp->AssociatedIrp.SystemBuffer,10,0x3C);

		Irp->IoStatus.Status=status;
		Irp->IoStatus.Information=8;//设置实际可返回数据
		break;
	default:
		Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
		Irp->IoStatus.Information = 0;
		break;
	}

	status = Irp->IoStatus.Status;
	IoCompleteRequest(Irp, IO_NO_INCREMENT);
	return status;
}