driver.h

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/************************************************************************
* 文件名称:Driver.h                                                 
* 作    者:张帆
* 完成日期:2007-11-1
*************************************************************************/
#pragma once

#ifdef __cplusplus
extern "C"
{
#endif
#include <NTDDK.h>
NTKERNELAPI
NTSTATUS
ObReferenceObjectByName(
    IN PUNICODE_STRING ObjectName,
    IN ULONG Attributes,
    IN PACCESS_STATE PassedAccessState OPTIONAL,
    IN ACCESS_MASK DesiredAccess OPTIONAL,
    IN POBJECT_TYPE ObjectType,
    IN KPROCESSOR_MODE AccessMode,
    IN OUT PVOID ParseContext OPTIONAL,
    OUT PVOID *Object
    );
NTKERNELAPI
PDEVICE_OBJECT
NTAPI
IoGetBaseFileSystemDeviceObject (
    IN PFILE_OBJECT FileObject
);
extern POBJECT_TYPE IoDeviceObjectType;
extern POBJECT_TYPE *IoDriverObjectType;
#ifdef __cplusplus
}
#endif 
#include "ioctls.h"

#define PAGEDCODE code_seg("PAGE")
#define LOCKEDCODE code_seg()
#define INITCODE code_seg("INIT")

#define PAGEDDATA data_seg("PAGE")
#define LOCKEDDATA data_seg()
#define INITDATA data_seg("INIT")

#define arraysize(p) (sizeof(p)/sizeof((p)[0]))

#define MAX_FILE_LENGTH 1024

typedef struct _DEVICE_EXTENSION {
	PDEVICE_OBJECT pDevice;
	UNICODE_STRING ustrDeviceName;	//设备名称
	UNICODE_STRING ustrSymLinkName;	//符号链接名

	PUCHAR buffer;//缓冲区
	ULONG file_length;//模拟的文件长度，必须小于MAX_FILE_LENGTH
} DEVICE_EXTENSION, *PDEVICE_EXTENSION;

// 函数声明

NTSTATUS CreateDevice (IN PDRIVER_OBJECT pDriverObject);
VOID HelloDDKUnload (IN PDRIVER_OBJECT pDriverObject);
NTSTATUS HelloDDKDispatchRoutin(IN PDEVICE_OBJECT pDevObj,
								 IN PIRP pIrp);
NTSTATUS HelloDDKDeviceIOControl(IN PDEVICE_OBJECT pDevObj,
								 IN PIRP pIrp);

typedef struct _OBJECT_CREATE_INFORMATION
{
    ULONG Attributes;
    HANDLE RootDirectory;
    PVOID ParseContext;
    KPROCESSOR_MODE ProbeMode;
    ULONG PagedPoolCharge;
    ULONG NonPagedPoolCharge;
    ULONG SecurityDescriptorCharge;
    PSECURITY_DESCRIPTOR SecurityDescriptor;
    PSECURITY_QUALITY_OF_SERVICE SecurityQos;
    SECURITY_QUALITY_OF_SERVICE SecurityQualityOfService;
} OBJECT_CREATE_INFORMATION, * POBJECT_CREATE_INFORMATION;

typedef struct _OBJECT_HEADER
{
    LONG PointerCount;
    union
    {
        LONG HandleCount;
        PSINGLE_LIST_ENTRY SEntry;
    };
    POBJECT_TYPE Type;
    UCHAR NameInfoOffset;
    UCHAR HandleInfoOffset;
    UCHAR QuotaInfoOffset;
    UCHAR Flags;
    union
    {
        POBJECT_CREATE_INFORMATION ObjectCreateInfo;
        PVOID QuotaBlockCharged;
    };

    PSECURITY_DESCRIPTOR SecurityDescriptor;
    QUAD Body;
} OBJECT_HEADER, * POBJECT_HEADER;

#define NUMBER_HASH_BUCKETS 37

typedef struct _OBJECT_DIRECTORY
{
    struct _OBJECT_DIRECTORY_ENTRY* HashBuckets[NUMBER_HASH_BUCKETS];
    struct _OBJECT_DIRECTORY_ENTRY** LookupBucket;
    BOOLEAN LookupFound;
    USHORT SymbolicLinkUsageCount;
    struct _DEVICE_MAP* DeviceMap;
} OBJECT_DIRECTORY, * POBJECT_DIRECTORY;

typedef struct _OBJECT_HEADER_NAME_INFO
{
    POBJECT_DIRECTORY Directory;
    UNICODE_STRING Name;
    ULONG Reserved;
#if DBG
    ULONG Reserved2 ;
    LONG DbgDereferenceCount ;
#endif
} OBJECT_HEADER_NAME_INFO, * POBJECT_HEADER_NAME_INFO;

#define OBJECT_TO_OBJECT_HEADER( o ) \
    CONTAINING_RECORD( (o), OBJECT_HEADER, Body )

#define OBJECT_HEADER_TO_NAME_INFO( oh ) ((POBJECT_HEADER_NAME_INFO) \
    ((oh)->NameInfoOffset == 0 ? NULL : ((PCHAR)(oh) - (oh)->NameInfoOffset)))