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;

}