[ddk] 드라이버에서 파일명 바꾸기

오전 12:21 2001-11-08
드라이버에서 파일명 바꾸기
=============================================================

Search Result 15
From: Slava Monich (monich@ftp.com)
Subject: Re: Renaming a file
Newsgroups: comp.os.ms-windows.programmer.nt.kernel-mode, cis.winnt.drivers, comp.os.ms-windows.programmer.win32
View: Complete Thread (4 articles) | Original Format
Date: 1998/04/25


Irina Koulinitch wrote:
>
> Hello,
>
> Does anyone know how to rename a file from NT Driver?
> I can't find any functions to do that in NT DDK help.
> Please give me some hints.
>

The function is IoCallDriver()
The rename code may look like this:

==============================================================
PFILE_RENAME_INFORMATION Rename = ... ;
(initialize FILE_RENAME_INFORMATION with target file name)

Irp = IoAllocateIrp( DeviceObject->StackSize, FALSE );
if ( ! Irp ) return STATUS_INSUFFICIENT_RESOURCES;

Irp->Flags |= IRP_BUFFERED_IO;
Irp->RequestorMode = KernelMode;
Irp->UserIosb = &IoStatus;
Irp->UserEvent = &Event;
Irp->Tail.Overlay.OriginalFileObject = FileObject;
Irp->Tail.Overlay.Thread = PsGetCurrentThread();
Irp->AssociatedIrp.SystemBuffer = (PVOID)&Rename;

IrpSp = IoGetNextIrpStackLocation( Irp );
IrpSp->MajorFunction = IRP_MJ_SET_INFORMATION;
IrpSp->FileObject = FileObject;
IrpSp->DeviceObject = DeviceObject;
IrpSp->Parameters.SetFile.Length = Length; // length of Rename
IrpSp->Parameters.SetFile.FileInformationClass = FileRenameInformation;
IrpSp->Parameters.SetFile.FileObject = FileObject;
IrpSp->Parameters.SetFile.ReplaceIfExists = Rename->ReplaceIfExists;

Status = IoCallDriver( DeviceObject, Irp );
if (Status == STATUS_PENDING)
    KeWaitForSingleObject( &Event, Executive, KernelMode,
                           FALSE, (PLARGE_INTEGER)NULL);

if (!NT_SUCCESS(Status)) IoStatus.Status = Status;
return IoStatus.Status;
==============================================================

Good luck,
-Slava

P.S FILE_RENAME_INFORMATION defined in one of Microsoft header
    files as follows:

typedef struct _FILE_RENAME_INFORMATION {
    BOOLEAN ReplaceIfExists;
    HANDLE RootDirectory;
    ULONG FileNameLength;
    WCHAR FileName[1];
} FILE_RENAME_INFORMATION, *PFILE_RENAME_INFORMATION;