if (AttrRecord->IsNonResident)
return AttrRecord->NonResident.AllocatedSize;
else
- return AttrRecord->Resident.ValueLength;
+ return ALIGN_UP_BY(AttrRecord->Resident.ValueLength, ATTR_RECORD_ALIGNMENT);
}
{
NTSTATUS Status = STATUS_SUCCESS;
- DPRINT1("SetAttributeDataLenth(%p, %p, %p, %lu, %p, %I64u)\n",
+ DPRINT1("SetAttributeDataLength(%p, %p, %p, %lu, %p, %I64u)\n",
FileObject,
Fcb,
AttrContext,
if (NT_SUCCESS(Status))
{
- if(AttrContext->Record.IsNonResident)
+ if (AttrContext->Record.IsNonResident)
Fcb->RFCB.AllocationSize.QuadPart = AttrContext->Record.NonResident.AllocatedSize;
else
Fcb->RFCB.AllocationSize = *DataSize;
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DPRINT1("Unable to create LargeMcb!\n");
- ExFreePoolWithTag(AttribData, TAG_NTFS);
+ if (AttribDataSize.QuadPart > 0)
+ ExFreePoolWithTag(AttribData, TAG_NTFS);
_SEH2_YIELD(return _SEH2_GetExceptionCode());
} _SEH2_END;
} // end while (Length > 0) [more data to write]
// TEMPTEMP
- if(Context->Record.IsNonResident)
+ if (Context->Record.IsNonResident)
ExFreePoolWithTag(TempBuffer, TAG_NTFS);
Context->CacheRun = DataRun;
{
// we need to write the index root attribute back to disk
ULONG LengthWritten;
- Status = WriteAttribute(Vcb, IndexRootCtx, 0, IndexRecord, AttributeDataLength(&IndexRootCtx->Record), &LengthWritten);
+ Status = WriteAttribute(Vcb, IndexRootCtx, 0, (PUCHAR)IndexRecord, AttributeDataLength(&IndexRootCtx->Record), &LengthWritten);
if (!NT_SUCCESS(Status))
{
DPRINT1("ERROR: Couldn't update Index Root!\n");
while (IndexEntry < LastEntry &&
!(IndexEntry->Flags & NTFS_INDEX_ENTRY_END))
{
- if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) > 0x10 &&
+ if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) > NTFS_FILE_FIRST_USER_FILE &&
*CurrentEntry >= *StartEntry &&
IndexEntry->FileName.NameType != NTFS_FILE_NAME_DOS &&
CompareFileName(FileName, IndexEntry, DirSearch, CaseSensitive))
}
// read $Bitmap attribute
- AttrBytesRead = ReadAttribute(DeviceExt, BitmapContext, 0, BitmapData, BitmapDataSize);
+ AttrBytesRead = ReadAttribute(DeviceExt, BitmapContext, 0, (PCHAR)BitmapData, BitmapDataSize);
if (AttrBytesRead == 0)
{
return Status;
}
+/**
+* @name NtfsAddFilenameToDirectory
+* @implemented
+*
+* Adds a $FILE_NAME attribute to a given directory index.
+*
+* @param DeviceExt
+* Points to the target disk's DEVICE_EXTENSION.
+*
+* @param DirectoryMftIndex
+* Mft index of the parent directory which will receive the file.
+*
+* @param FileReferenceNumber
+* File reference of the file to be added to the directory. This is a combination of the
+* Mft index and sequence number.
+*
+* @param FilenameAttribute
+* Pointer to the FILENAME_ATTRIBUTE of the file being added to the directory.
+*
+* @param CaseSensitive
+* Boolean indicating if the function should operate in case-sensitive mode. This will be TRUE
+* if an application created the file with the FILE_FLAG_POSIX_SEMANTICS flag.
+*
+* @return
+* STATUS_SUCCESS on success.
+* STATUS_INSUFFICIENT_RESOURCES if an allocation fails.
+* STATUS_NOT_IMPLEMENTED if target address isn't at the end of the given file record.
+*
+* @remarks
+* WIP - Can only support a few files in a directory.
+* One FILENAME_ATTRIBUTE is added to the directory's index for each link to that file. So, each
+* file which contains one FILENAME_ATTRIBUTE for a long name and another for the 8.3 name, will
+* get both attributes added to its parent directory.
+*/
+NTSTATUS
+NtfsAddFilenameToDirectory(PDEVICE_EXTENSION DeviceExt,
+ ULONGLONG DirectoryMftIndex,
+ ULONGLONG FileReferenceNumber,
+ PFILENAME_ATTRIBUTE FilenameAttribute,
+ BOOLEAN CaseSensitive)
+{
+ NTSTATUS Status = STATUS_SUCCESS;
+ PFILE_RECORD_HEADER ParentFileRecord;
+ PNTFS_ATTR_CONTEXT IndexRootContext;
+ PINDEX_ROOT_ATTRIBUTE I30IndexRoot;
+ ULONG IndexRootOffset;
+ ULONGLONG I30IndexRootLength;
+ ULONG LengthWritten;
+ PNTFS_ATTR_RECORD DestinationAttribute;
+ PINDEX_ROOT_ATTRIBUTE NewIndexRoot;
+ ULONG AttributeLength;
+ PNTFS_ATTR_RECORD NextAttribute;
+ PB_TREE NewTree;
+ ULONG BtreeIndexLength;
+ ULONG MaxIndexSize;
+
+ // Allocate memory for the parent directory
+ ParentFileRecord = ExAllocatePoolWithTag(NonPagedPool,
+ DeviceExt->NtfsInfo.BytesPerFileRecord,
+ TAG_NTFS);
+ if (!ParentFileRecord)
+ {
+ DPRINT1("ERROR: Couldn't allocate memory for file record!\n");
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ // Open the parent directory
+ Status = ReadFileRecord(DeviceExt, DirectoryMftIndex, ParentFileRecord);
+ if (!NT_SUCCESS(Status))
+ {
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ DPRINT1("ERROR: Couldn't read parent directory with index %I64u\n",
+ DirectoryMftIndex);
+ return Status;
+ }
+
+ DPRINT1("Dumping old parent file record:\n");
+ NtfsDumpFileRecord(DeviceExt, ParentFileRecord);
+
+ // Find the index root attribute for the directory
+ Status = FindAttribute(DeviceExt,
+ ParentFileRecord,
+ AttributeIndexRoot,
+ L"$I30",
+ 4,
+ &IndexRootContext,
+ &IndexRootOffset);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Couldn't find $I30 $INDEX_ROOT attribute for parent directory with MFT #: %I64u!\n",
+ DirectoryMftIndex);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ // Find the maximum index size given what the file record can hold
+ MaxIndexSize = DeviceExt->NtfsInfo.BytesPerFileRecord
+ - IndexRootOffset
+ - IndexRootContext->Record.Resident.ValueOffset
+ - FIELD_OFFSET(INDEX_ROOT_ATTRIBUTE, Header)
+ - (sizeof(ULONG) * 2);
+
+ // Allocate memory for the index root data
+ I30IndexRootLength = AttributeDataLength(&IndexRootContext->Record);
+ I30IndexRoot = ExAllocatePoolWithTag(NonPagedPool, I30IndexRootLength, TAG_NTFS);
+ if (!I30IndexRoot)
+ {
+ DPRINT1("ERROR: Couldn't allocate memory for index root attribute!\n");
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ // Read the Index Root
+ Status = ReadAttribute(DeviceExt, IndexRootContext, 0, (PCHAR)I30IndexRoot, I30IndexRootLength);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Couln't read index root attribute for Mft index #%I64u\n", DirectoryMftIndex);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ // Convert the index to a B*Tree
+ Status = CreateBTreeFromIndex(DeviceExt,
+ ParentFileRecord,
+ IndexRootContext,
+ I30IndexRoot,
+ &NewTree);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Failed to create B-Tree from Index!\n");
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ DumpBTree(NewTree);
+
+ // Insert the key for the file we're adding
+ Status = NtfsInsertKey(FileReferenceNumber, FilenameAttribute, NewTree->RootNode, CaseSensitive);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Failed to insert key into B-Tree!\n");
+ DestroyBTree(NewTree);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ DumpBTree(NewTree);
+
+ // Convert B*Tree back to Index
+ Status = UpdateIndexAllocation(DeviceExt, NewTree, I30IndexRoot->SizeOfEntry, ParentFileRecord);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Failed to update index allocation from B-Tree!\n");
+ DestroyBTree(NewTree);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ // Create the Index Root from the B*Tree
+ Status = CreateIndexRootFromBTree(DeviceExt, NewTree, MaxIndexSize, &NewIndexRoot, &BtreeIndexLength);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Failed to create Index root from B-Tree!\n");
+ DestroyBTree(NewTree);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ // We're done with the B-Tree now
+ DestroyBTree(NewTree);
+
+ // Write back the new index root attribute to the parent directory file record
+
+ // First, we need to resize the attribute.
+ // CreateIndexRootFromBTree() should have verified that the index root fits within MaxIndexSize.
+ // We can't set the size as we normally would, because if we extend past the file record,
+ // we must create an index allocation and index bitmap (TODO). Also TODO: support file records with
+ // $ATTRIBUTE_LIST's.
+ AttributeLength = NewIndexRoot->Header.AllocatedSize + FIELD_OFFSET(INDEX_ROOT_ATTRIBUTE, Header);
+
+ if (AttributeLength != IndexRootContext->Record.Resident.ValueLength)
+ {
+ DestinationAttribute = (PNTFS_ATTR_RECORD)((ULONG_PTR)ParentFileRecord + IndexRootOffset);
+
+ // Find the attribute (or attribute-end marker) after the index root
+ NextAttribute = (PNTFS_ATTR_RECORD)((ULONG_PTR)DestinationAttribute + DestinationAttribute->Length);
+ if (NextAttribute->Type != AttributeEnd)
+ {
+ DPRINT1("FIXME: For now, only resizing index root at the end of a file record is supported!\n");
+ ExFreePoolWithTag(NewIndexRoot, TAG_NTFS);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return STATUS_NOT_IMPLEMENTED;
+ }
+
+ // Update the length of the attribute in the file record of the parent directory
+ InternalSetResidentAttributeLength(IndexRootContext,
+ ParentFileRecord,
+ IndexRootOffset,
+ AttributeLength);
+ }
+
+ NT_ASSERT(ParentFileRecord->BytesInUse <= DeviceExt->NtfsInfo.BytesPerFileRecord);
+
+ Status = UpdateFileRecord(DeviceExt, DirectoryMftIndex, ParentFileRecord);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Failed to update file record of directory with index: %llx\n", DirectoryMftIndex);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ ExFreePoolWithTag(NewIndexRoot, TAG_NTFS);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ return Status;
+ }
+
+ // Write the new index root to disk
+ Status = WriteAttribute(DeviceExt,
+ IndexRootContext,
+ 0,
+ (PUCHAR)NewIndexRoot,
+ AttributeLength,
+ &LengthWritten);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Unable to write new index root attribute to parent directory!\n");
+ ExFreePoolWithTag(NewIndexRoot, TAG_NTFS);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+ return Status;
+ }
+
+ // re-read the parent file record, so we can dump it
+ Status = ReadFileRecord(DeviceExt, DirectoryMftIndex, ParentFileRecord);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("ERROR: Couldn't read parent directory after messing with it!\n");
+ }
+ else
+ {
+ DPRINT1("Dumping new parent file record:\n");
+ NtfsDumpFileRecord(DeviceExt, ParentFileRecord);
+ }
+
+ // Cleanup
+ ExFreePoolWithTag(NewIndexRoot, TAG_NTFS);
+ ReleaseAttributeContext(IndexRootContext);
+ ExFreePoolWithTag(I30IndexRoot, TAG_NTFS);
+ ExFreePoolWithTag(ParentFileRecord, TAG_NTFS);
+
+ return Status;
+}
+
NTSTATUS
AddFixupArray(PDEVICE_EXTENSION Vcb,
PNTFS_RECORD_HEADER Record)
while (IndexEntry < LastEntry &&
!(IndexEntry->Flags & NTFS_INDEX_ENTRY_END))
{
- if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) >= 0x10 &&
+ if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) >= NTFS_FILE_FIRST_USER_FILE &&
*CurrentEntry >= *StartEntry &&
IndexEntry->FileName.NameType != NTFS_FILE_NAME_DOS &&
CompareFileName(FileName, IndexEntry, DirSearch, CaseSensitive))
projects / reactos.git / blobdiff