列舉裝置棧

hello.h

#pragma once

#include #define countarray(array) ( sizeof(array) / sizeof(array[0]) )
typedef struct _device_extension
device_extension,*pdevice_extension;
#ifdef __cplusplus
extern "c"
#endif 
typedef struct _object_create_information
object_create_information, * pobject_create_information;
typedef struct _object_header
; pobject_type type;
uchar nameinfooffset;
uchar handleinfooffset;
uchar quotainfooffset;
uchar flags;
union
; psecurity_descriptor securitydescriptor;
quad body;
} object_header, * pobject_header;
#define number_hash_buckets 37
typedef struct _object_directory
object_directory, * pobject_directory;
typedef struct _object_header_name_info
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)))
#ifdef __cplusplus
extern "c" ntstatus driverentry(in pdriver_object driverobject, in punicode_string registrypath);
#endif
void hellounload(in pdriver_object driverobject); //解除安裝函式
ntstatus createdevice(pdriver_object pdevobj); //建立裝置
ntstatus helloddkdispatchroutine(in pdevice_object pdevobj,in pirp pirp); //派遣函式
ntstatus helloddkcontrol(in pdevice_object pdevobj,in pirp pirp); //irp_mj_directory_control

driver.cpp

#include "hello.h"

//獲取裝置資訊
void getdeviceobjectinfo( pdevice_object devobj)
else if ( devobj->driverobject )
}}//獲取過濾裝置資訊
void getattacheddeviceinfo( pdevice_object devobj )
}//列舉裝置棧
pdriver_object enumdevicestack( pwstr pwszdevicename )
// 進一步判斷當前裝置上 vpb 中的裝置
if ( deviceobject->vpb && deviceobject->vpb->deviceobject )
}// 得到建立在此驅動上的下乙個裝置 device_object 
deviceobject = deviceobject->nextdevice;
} return driverobject;
}ntstatus driverentry(in pdriver_object driverobject, in punicode_string registrypath)
//建立裝置
createdevice(driverobject);
enumdevicestack(l"\\driver\\kbdclass");
return status_success;
}//解除安裝函式
void hellounload(in pdriver_object driverobject)
}//建立裝置
ntstatus createdevice(pdriver_object pdriver_object)
pdevobje->flags |= do_direct_io;
pdevext=(pdevice_extension)pdevobje->deviceextension;
pdevext->pdevice=pdevobje;
pdevext->ustrdevicename=devname;
pdevext->ustrsymlinkname=symlinkname;
//建立符號連線
if (iocreatesymboliclink(&symlinkname,&devname)!=status_success )
return status_success;
}//派遣函式
ntstatus helloddkdispatchroutine(in pdevice_object pdevobj,in pirp pirp)
; uchar type = stack->majorfunction;
if (type >= countarray(irpname))
kdprint(("無效的irp型別 %x\n", type));
else
kdprint(("%s\n", irpname[type]));
pirp->iostatus.status=status_success; //設定完成狀態
pirp->iostatus.information=0; //設定操作位元組為0
iocompleterequest(pirp,io_no_increment); //結束irp派遣函式，第二個引數表示不增加優先順序
return status_success;
}

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