Fcb = pFileObject->FsContext;
ASSERT(Fcb);
+ if (Fcb->Flags & FCB_IS_VOLUME)
+ {
+ /* This is likely to be an opening by ID, return ourselves */
+ if (pRelativeFileName[0] == L'\\')
+ {
+ *pAbsoluteFilename = NULL;
+ return STATUS_SUCCESS;
+ }
+
+ return STATUS_INVALID_PARAMETER;
+ }
+
/* verify related object is a directory and target name
don't start with \. */
if (NtfsFCBIsDirectory(Fcb) == FALSE ||
}
+static
+NTSTATUS
+NtfsMoonWalkID(PDEVICE_EXTENSION DeviceExt,
+ ULONGLONG Id,
+ PUNICODE_STRING OutPath)
+{
+ NTSTATUS Status;
+ PFILE_RECORD_HEADER MftRecord;
+ PFILENAME_ATTRIBUTE FileName;
+ WCHAR FullPath[MAX_PATH];
+ ULONG WritePosition = MAX_PATH - 1;
+
+ DPRINT1("NtfsMoonWalkID(%p, %I64x, %p)\n", DeviceExt, Id, OutPath);
+
+ Id = Id & NTFS_MFT_MASK;
+
+ RtlZeroMemory(FullPath, sizeof(FullPath));
+ MftRecord = ExAllocatePoolWithTag(NonPagedPool,
+ DeviceExt->NtfsInfo.BytesPerFileRecord,
+ TAG_NTFS);
+ if (MftRecord == NULL)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ while (TRUE)
+ {
+ Status = ReadFileRecord(DeviceExt, Id, MftRecord);
+ if (!NT_SUCCESS(Status))
+ break;
+
+ ASSERT(MftRecord->Ntfs.Type == NRH_FILE_TYPE);
+
+ FileName = GetBestFileNameFromRecord(MftRecord);
+ WritePosition -= FileName->NameLength;
+ ASSERT(WritePosition < MAX_PATH);
+ RtlCopyMemory(FullPath + WritePosition, FileName->Name, FileName->NameLength * sizeof(WCHAR));
+ WritePosition -= 1;
+ ASSERT(WritePosition < MAX_PATH);
+ FullPath[WritePosition] = L'\\';
+
+ Id = FileName->DirectoryFileReferenceNumber & NTFS_MFT_MASK;
+ if (Id == NTFS_FILE_ROOT)
+ break;
+ }
+
+ ExFreePoolWithTag(MftRecord, TAG_NTFS);
+
+ OutPath->Length = (MAX_PATH - WritePosition - 1) * sizeof(WCHAR);
+ OutPath->MaximumLength = (MAX_PATH - WritePosition) * sizeof(WCHAR);
+ OutPath->Buffer = ExAllocatePoolWithTag(NonPagedPool, OutPath->MaximumLength, TAG_NTFS);
+ if (OutPath->Buffer == NULL)
+ {
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+ RtlCopyMemory(OutPath->Buffer, FullPath + WritePosition, OutPath->MaximumLength);
+
+ return Status;
+}
+
/*
* FUNCTION: Opens a file
*/
NtfsOpenFile(PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT FileObject,
PWSTR FileName,
- BOOLEAN OpenById,
PNTFS_FCB * FoundFCB)
{
PNTFS_FCB ParentFcb;
NTSTATUS Status;
PWSTR AbsFileName = NULL;
- DPRINT1("NtfsOpenFile(%p, %p, %S, %u, %p)\n", DeviceExt, FileObject, (!OpenById ? FileName : NULL), OpenById, FoundFCB);
+ DPRINT1("NtfsOpenFile(%p, %p, %S, %p)\n", DeviceExt, FileObject, FileName, FoundFCB);
*FoundFCB = NULL;
- if (OpenById)
+ if (FileObject->RelatedFileObject)
{
- ULONGLONG Id = (*(PULONGLONG)FileName) & NTFS_MFT_MASK;
+ DPRINT("Converting relative filename to absolute filename\n");
- DPRINT1("Will attempt to open by id: %I64x\n", Id);
-
- Fcb = NtfsGrabFCBFromTableById(DeviceExt,
- Id);
- if (Fcb == NULL)
+ Status = NtfsMakeAbsoluteFilename(FileObject->RelatedFileObject,
+ FileName,
+ &AbsFileName);
+ if (AbsFileName) FileName = AbsFileName;
+ if (!NT_SUCCESS(Status))
{
- Status = NtfsGetFCBForFileById(DeviceExt,
- &Fcb,
- Id);
- if (!NT_SUCCESS (Status))
- {
- DPRINT("Could not make a new FCB, status: %x\n", Status);
-
- return Status;
- }
-
- Fcb->Flags |= FCB_IS_OPEN_BY_ID;
+ return Status;
}
}
- else
- {
- if (FileObject->RelatedFileObject)
- {
- DPRINT("Converting relative filename to absolute filename\n");
-
- Status = NtfsMakeAbsoluteFilename(FileObject->RelatedFileObject,
- FileName,
- &AbsFileName);
- FileName = AbsFileName;
- if (!NT_SUCCESS(Status))
- {
- return Status;
- }
- return STATUS_UNSUCCESSFUL;
- }
-
- //FIXME: Get cannonical path name (remove .'s, ..'s and extra separators)
+ //FIXME: Get cannonical path name (remove .'s, ..'s and extra separators)
- DPRINT("PathName to open: %S\n", FileName);
+ DPRINT("PathName to open: %S\n", FileName);
- /* try first to find an existing FCB in memory */
- DPRINT("Checking for existing FCB in memory\n");
- Fcb = NtfsGrabFCBFromTable(DeviceExt,
+ /* try first to find an existing FCB in memory */
+ DPRINT("Checking for existing FCB in memory\n");
+ Fcb = NtfsGrabFCBFromTable(DeviceExt,
+ FileName);
+ if (Fcb == NULL)
+ {
+ DPRINT("No existing FCB found, making a new one if file exists.\n");
+ Status = NtfsGetFCBForFile(DeviceExt,
+ &ParentFcb,
+ &Fcb,
FileName);
- if (Fcb == NULL)
+ if (ParentFcb != NULL)
{
- DPRINT("No existing FCB found, making a new one if file exists.\n");
- Status = NtfsGetFCBForFile(DeviceExt,
- &ParentFcb,
- &Fcb,
- FileName);
- if (ParentFcb != NULL)
- {
- NtfsReleaseFCB(DeviceExt,
- ParentFcb);
- }
+ NtfsReleaseFCB(DeviceExt,
+ ParentFcb);
+ }
- if (!NT_SUCCESS (Status))
- {
- DPRINT("Could not make a new FCB, status: %x\n", Status);
+ if (!NT_SUCCESS (Status))
+ {
+ DPRINT("Could not make a new FCB, status: %x\n", Status);
- if (AbsFileName)
- ExFreePool(AbsFileName);
+ if (AbsFileName)
+ ExFreePool(AbsFileName);
- return Status;
- }
+ return Status;
}
}
PNTFS_FCB Fcb;
// PWSTR FileName;
NTSTATUS Status;
+ UNICODE_STRING FullPath;
DPRINT1("NtfsCreateFile(%p, %p) called\n", DeviceObject, Irp);
return STATUS_INVALID_PARAMETER;
}
- if (RequestedOptions & FILE_OPEN_BY_FILE_ID)
- {
- UNIMPLEMENTED;
- return STATUS_NOT_IMPLEMENTED;
- }
-
FileObject = Stack->FileObject;
if (RequestedDisposition == FILE_CREATE ||
return STATUS_ACCESS_DENIED;
}
- if ((RequestedOptions & FILE_OPEN_BY_FILE_ID) == FILE_OPEN_BY_FILE_ID &&
- FileObject->FileName.Length != sizeof(ULONGLONG))
+ if ((RequestedOptions & FILE_OPEN_BY_FILE_ID) == FILE_OPEN_BY_FILE_ID)
{
- return STATUS_INVALID_PARAMETER;
+ if (FileObject->FileName.Length != sizeof(ULONGLONG))
+ return STATUS_INVALID_PARAMETER;
+
+ Status = NtfsMoonWalkID(DeviceExt, (*(PULONGLONG)FileObject->FileName.Buffer), &FullPath);
+ if (!NT_SUCCESS(Status))
+ {
+ return Status;
+ }
+
+ DPRINT1("Open by ID: %I64x -> %wZ\n", (*(PULONGLONG)FileObject->FileName.Buffer) & NTFS_MFT_MASK, &FullPath);
}
/* This a open operation for the volume itself */
Status = NtfsOpenFile(DeviceExt,
FileObject,
- FileObject->FileName.Buffer,
- ((RequestedOptions & FILE_OPEN_BY_FILE_ID) == FILE_OPEN_BY_FILE_ID),
+ ((RequestedOptions & FILE_OPEN_BY_FILE_ID) ? FullPath.Buffer : FileObject->FileName.Buffer),
&Fcb);
+ if (RequestedOptions & FILE_OPEN_BY_FILE_ID)
+ {
+ ExFreePoolWithTag(FullPath.Buffer, TAG_NTFS);
+ }
+
if (NT_SUCCESS(Status))
{
if (RequestedDisposition == FILE_CREATE)
projects / reactos.git / blobdiff