驱动开发之三：简单的什么也不做的驱动程序筐架

//说明，编译是需要相对路径中有inc目录，而且有ntifs.inc;且扩展了函数。

//#include "ntifs.h"

//#include "stdio.h"

//常量定义；

#define DEVICE_TYPE_SYSMON 0x8266 //DDK指出0-7fffh是被系统保留了

#define NT_DEVICE_NAME L"//Device//MINSYS" //内核设备名

#define DOS_DEVICE_NAME L"//DosDevices//MINSYS" //符号连接设备名

//全局变量定义；

PDRIVER_OBJECT gOwenDriverObject; //本驱动程序对象

PDEVICE_OBJECT gCtrlDeviceObject; //用控制设备对象域

#pragma code_seg("PAGE")

VOID//UnLoad例程；

Unload(PDRIVER_OBJECT DriverObject)

{

UNICODE_STRING Win32DeviceName;

RtlInitUnicodeString(&Win32DeviceName,DOS_DEVICE_NAME);

IoDeleteSymbolicLink(&Win32DeviceName);

IoDeleteDevice(gCtrlDeviceObject);

#if (DBG)

{

DbgPrint (("-------------------Unload OK/n"));

}

#endif

return;

}

NTSTATUS

DeviceIrpCreate( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )

{

IoCompleteRequest( Irp, IO_NO_INCREMENT );

return STATUS_SUCCESS;

}

NTSTATUS

DeviceIrpClose( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )

{

IoCompleteRequest( Irp, IO_NO_INCREMENT );

return STATUS_SUCCESS;

}

NTSTATUS

DeviceIrpControl( IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp )

{

IoCompleteRequest( Irp, IO_NO_INCREMENT );

return STATUS_SUCCESS;

}

#pragma code_seg("INIT")

NTSTATUS//驱动程序入口；

DriverEntry(IN PDRIVER_OBJECT DriverObject,IN PUNICODE_STRING RegistryPath)

{

NTSTATUS Status;

UNICODE_STRING NtDeviceName;

UNICODE_STRING Win32DeviceName;

//保存自己的驱动程序对象，备用

gOwenDriverObject=DriverObject;

//初始化Unicode字符串， 创建设备对象；

RtlInitUnicodeString(&NtDeviceName,NT_DEVICE_NAME);

Status=IoCreateDevice( DriverObject,0,&NtDeviceName,

DEVICE_TYPE_SYSMON,0,FALSE,&gCtrlDeviceObject);

if (!NT_SUCCESS(Status)) return Status;

//初始化Unicode字符串， 创建Win32符号连接，以便Win32程序能够访问；

RtlInitUnicodeString(&Win32DeviceName,DOS_DEVICE_NAME);

Status=IoCreateSymbolicLink(&Win32DeviceName,&NtDeviceName);

if (!NT_SUCCESS(Status))

{

IoDeleteDevice( gCtrlDeviceObject );

return Status;

}

//填写驱动程序Dispatch例程

DriverObject->MajorFunction[IRP_MJ_CREATE] =DeviceIrpCreate;

DriverObject->MajorFunction[IRP_MJ_CLOSE] =DeviceIrpClose;

DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =DeviceIrpControl;

//填写处理Unload例程

DriverObject->DriverUnload =Unload;

#if (DBG)

{

DbgPrint("DriverObject=%x RegistryPath=%x/n",DriverObject,RegistryPath);

}

#endif

return Status;

}