驅動開發之二 嘗試掛接file system

hookfilesystem.c

**//嘗試掛接file system

#include "hookfilesystem.h"

handle        hfilehandle;

object_attributes        objectattrib;

pdevice_object        pfiledeviceobject;

struct _driver_object *pdeviceobject;

pdriver_dispatch realcreatedispatch;

ntstatus driverentry(in pdriver_object driverobject ,in punicode_string registrypath)

//設定dispatch

driverobject->majorfunction[irp_mj_create] = driverdispatch;

driverobject->majorfunction[irp_mj_close] = driverdispatch;

//設定unload

driverobject->driverunload = driverunload;

//hook file system

hookfilesystem();

return 0;       

}ntstatus

driverdispatch(

in pdevice_object deviceobject,

in pirp           irp

)void driverunload(in pdriver_object pdriverobject)

void hookfilesystem(void)

//通過檔案控制代碼得到與之向對應的檔案物件

ntstatus = obreferenceobjectbyhandle(hfilehandle,file_read_data,0,0,&pfileobject,null);

if(!nt_success(ntstatus))

//在通過該檔案物件查詢相對應的檔案裝置

pfiledeviceobject = iogetrelateddeviceobject(pfileobject);

//檔案物件引用計數器減一

obdereferenceobject(pfileobject);

zwclose(hfilehandle);

if(pfiledeviceobject==null)

pdeviceobject = pfiledeviceobject->driverobject;

if(pdeviceobject->majorfunction[irp_mj_create] == hookcreatedispatch)

//儲存irp_mj_create處理的位址

realcreatedispatch = pdeviceobject->majorfunction[irp_mj_create];

//hook create dispatch

pdeviceobject->majorfunction[irp_mj_create] = hookcreatedispatch;

return;       

}ntstatus

hookcreatedispatch(   

in pdevice_object deviceobject,

in pirp           irp

)return 0;       

}hookfilesystem.h

**#ifndef _include_

#define _include_

#include

ntstatus

driverdispatch(

in pdevice_object deviceobject,

in pirp           irp

);void driverunload(in pdriver_object driverobject);

void hookfilesystem(void);

ntstatus

hookcreatedispatch(   

in pdevice_object deviceobject,

in pirp           irp

);#endif

驅動開發之二 嘗試掛接file system

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