}
-PNTFS_ATTR_CONTEXT
-FindAttributeHelper(PDEVICE_EXTENSION Vcb,
- PNTFS_ATTR_RECORD AttrRecord,
- PNTFS_ATTR_RECORD AttrRecordEnd,
- ULONG Type,
- PCWSTR Name,
- ULONG NameLength)
+NTSTATUS
+FindAttribute(PDEVICE_EXTENSION Vcb,
+ PFILE_RECORD_HEADER MftRecord,
+ ULONG Type,
+ PCWSTR Name,
+ ULONG NameLength,
+ PNTFS_ATTR_CONTEXT * AttrCtx)
{
- DPRINT("FindAttributeHelper(%p, %p, %p, 0x%x, %S, %u)\n", Vcb, AttrRecord, AttrRecordEnd, Type, Name, NameLength);
-
- while (AttrRecord < AttrRecordEnd)
- {
- DPRINT("AttrRecord->Type = 0x%x\n", AttrRecord->Type);
+ BOOLEAN Found;
+ NTSTATUS Status;
+ FIND_ATTR_CONTXT Context;
+ PNTFS_ATTR_RECORD Attribute;
- if (AttrRecord->Type == AttributeEnd)
- break;
+ DPRINT("FindAttribute(%p, %p, 0x%x, %S, %u, %p)\n", Vcb, MftRecord, Type, Name, NameLength, AttrCtx);
- if (AttrRecord->Type == AttributeAttributeList)
+ Found = FALSE;
+ Status = FindFirstAttribute(&Context, Vcb, MftRecord, FALSE, &Attribute);
+ while (NT_SUCCESS(Status))
+ {
+ if (Attribute->Type == Type && Attribute->NameLength == NameLength)
{
- PNTFS_ATTR_CONTEXT Context;
- PNTFS_ATTR_CONTEXT ListContext;
- PVOID ListBuffer;
- ULONGLONG ListSize;
- PNTFS_ATTR_RECORD ListAttrRecord;
- PNTFS_ATTR_RECORD ListAttrRecordEnd;
-
- ListContext = PrepareAttributeContext(AttrRecord);
-
- ListSize = AttributeDataLength(&ListContext->Record);
- if(ListSize <= 0xFFFFFFFF)
- ListBuffer = ExAllocatePoolWithTag(NonPagedPool, (ULONG)ListSize, TAG_NTFS);
- else
- ListBuffer = NULL;
-
- if(!ListBuffer)
- {
- DPRINT("Failed to allocate memory: %x\n", (ULONG)ListSize);
- continue;
- }
-
- ListAttrRecord = (PNTFS_ATTR_RECORD)ListBuffer;
- ListAttrRecordEnd = (PNTFS_ATTR_RECORD)((PCHAR)ListBuffer + ListSize);
-
- if (ReadAttribute(Vcb, ListContext, 0, ListBuffer, (ULONG)ListSize) == ListSize)
+ if (NameLength != 0)
{
- Context = FindAttributeHelper(Vcb, ListAttrRecord, ListAttrRecordEnd,
- Type, Name, NameLength);
-
- ReleaseAttributeContext(ListContext);
- ExFreePoolWithTag(ListBuffer, TAG_NTFS);
+ PWCHAR AttrName;
- if (Context != NULL)
+ AttrName = (PWCHAR)((PCHAR)Attribute + Attribute->NameOffset);
+ DPRINT("%.*S, %.*S\n", Attribute->NameLength, AttrName, NameLength, Name);
+ if (RtlCompareMemory(AttrName, Name, NameLength << 1) == (NameLength << 1))
{
- if (AttrRecord->IsNonResident) DPRINT("Found context = %p\n", Context);
- return Context;
+ Found = TRUE;
}
}
- }
-
- if (AttrRecord->Type == Type)
- {
- if (AttrRecord->NameLength == NameLength)
+ else
{
- PWCHAR AttrName;
+ Found = TRUE;
+ }
- AttrName = (PWCHAR)((PCHAR)AttrRecord + AttrRecord->NameOffset);
- DPRINT("%.*S, %.*S\n", AttrRecord->NameLength, AttrName, NameLength, Name);
- if (RtlCompareMemory(AttrName, Name, NameLength << 1) == (NameLength << 1))
- {
- /* Found it, fill up the context and return. */
- DPRINT("Found context\n");
- return PrepareAttributeContext(AttrRecord);
- }
+ if (Found)
+ {
+ /* Found it, fill up the context and return. */
+ DPRINT("Found context\n");
+ *AttrCtx = PrepareAttributeContext(Attribute);
+ FindCloseAttribute(&Context);
+ return STATUS_SUCCESS;
}
}
- if (AttrRecord->Length == 0)
- {
- DPRINT("Null length attribute record\n");
- return NULL;
- }
- AttrRecord = (PNTFS_ATTR_RECORD)((PCHAR)AttrRecord + AttrRecord->Length);
+ Status = FindNextAttribute(&Context, &Attribute);
}
- DPRINT("Ended\n");
- return NULL;
-}
-
-
-NTSTATUS
-FindAttribute(PDEVICE_EXTENSION Vcb,
- PFILE_RECORD_HEADER MftRecord,
- ULONG Type,
- PCWSTR Name,
- ULONG NameLength,
- PNTFS_ATTR_CONTEXT * AttrCtx)
-{
- PNTFS_ATTR_RECORD AttrRecord;
- PNTFS_ATTR_RECORD AttrRecordEnd;
-
- DPRINT("FindAttribute(%p, %p, 0x%x, %S, %u, %p)\n", Vcb, MftRecord, Type, Name, NameLength, AttrCtx);
-
- AttrRecord = (PNTFS_ATTR_RECORD)((PCHAR)MftRecord + MftRecord->AttributeOffset);
- AttrRecordEnd = (PNTFS_ATTR_RECORD)((PCHAR)MftRecord + Vcb->NtfsInfo.BytesPerFileRecord);
-
- *AttrCtx = FindAttributeHelper(Vcb, AttrRecord, AttrRecordEnd, Type, Name, NameLength);
- if (*AttrCtx == NULL)
- {
- return STATUS_OBJECT_NAME_NOT_FOUND;
- }
-
- return STATUS_SUCCESS;
+ FindCloseAttribute(&Context);
+ return STATUS_OBJECT_NAME_NOT_FOUND;
}
ReadLength = (ULONG)min(DataRunLength * Vcb->NtfsInfo.BytesPerCluster - (Offset - CurrentOffset), Length);
if (DataRunStartLCN == -1)
+ {
RtlZeroMemory(Buffer, ReadLength);
- Status = NtfsReadDisk(Vcb->StorageDevice,
- DataRunStartLCN * Vcb->NtfsInfo.BytesPerCluster + Offset - CurrentOffset,
- ReadLength,
- Vcb->NtfsInfo.BytesPerSector,
- (PVOID)Buffer,
- FALSE);
+ Status = STATUS_SUCCESS;
+ }
+ else
+ {
+ Status = NtfsReadDisk(Vcb->StorageDevice,
+ DataRunStartLCN * Vcb->NtfsInfo.BytesPerCluster + Offset - CurrentOffset,
+ ReadLength,
+ Vcb->NtfsInfo.BytesPerSector,
+ (PVOID)Buffer,
+ FALSE);
+ }
if (NT_SUCCESS(Status))
{
Length -= ReadLength;
{
CurrentOffset += DataRunLength * Vcb->NtfsInfo.BytesPerCluster;
DataRun = DecodeRun(DataRun, &DataRunOffset, &DataRunLength);
- if (DataRunLength != (ULONGLONG)-1)
+ if (DataRunOffset != (ULONGLONG)-1)
{
DataRunStartLCN = LastLCN + DataRunOffset;
LastLCN = DataRunStartLCN;
}
else
DataRunStartLCN = -1;
-
- if (*DataRun == 0)
- return AlreadyRead;
}
while (Length > 0)
}
}
+#if 0
+static
+VOID
+DumpIndexEntry(PINDEX_ENTRY_ATTRIBUTE IndexEntry)
+{
+ DPRINT1("Entry: %p\n", IndexEntry);
+ DPRINT1("\tData.Directory.IndexedFile: %I64x\n", IndexEntry->Data.Directory.IndexedFile);
+ DPRINT1("\tLength: %u\n", IndexEntry->Length);
+ DPRINT1("\tKeyLength: %u\n", IndexEntry->KeyLength);
+ DPRINT1("\tFlags: %x\n", IndexEntry->Flags);
+ DPRINT1("\tReserved: %x\n", IndexEntry->Reserved);
+ DPRINT1("\t\tDirectoryFileReferenceNumber: %I64x\n", IndexEntry->FileName.DirectoryFileReferenceNumber);
+ DPRINT1("\t\tCreationTime: %I64u\n", IndexEntry->FileName.CreationTime);
+ DPRINT1("\t\tChangeTime: %I64u\n", IndexEntry->FileName.ChangeTime);
+ DPRINT1("\t\tLastWriteTime: %I64u\n", IndexEntry->FileName.LastWriteTime);
+ DPRINT1("\t\tLastAccessTime: %I64u\n", IndexEntry->FileName.LastAccessTime);
+ DPRINT1("\t\tAllocatedSize: %I64u\n", IndexEntry->FileName.AllocatedSize);
+ DPRINT1("\t\tDataSize: %I64u\n", IndexEntry->FileName.DataSize);
+ DPRINT1("\t\tFileAttributes: %x\n", IndexEntry->FileName.FileAttributes);
+ DPRINT1("\t\tNameLength: %u\n", IndexEntry->FileName.NameLength);
+ DPRINT1("\t\tNameType: %x\n", IndexEntry->FileName.NameType);
+ DPRINT1("\t\tName: %.*S\n", IndexEntry->FileName.NameLength, IndexEntry->FileName.Name);
+}
+#endif
+
+NTSTATUS
+BrowseIndexEntries(PDEVICE_EXTENSION Vcb,
+ PFILE_RECORD_HEADER MftRecord,
+ PCHAR IndexRecord,
+ ULONG IndexBlockSize,
+ PINDEX_ENTRY_ATTRIBUTE FirstEntry,
+ PINDEX_ENTRY_ATTRIBUTE LastEntry,
+ PUNICODE_STRING FileName,
+ PULONG StartEntry,
+ PULONG CurrentEntry,
+ BOOLEAN DirSearch,
+ ULONGLONG *OutMFTIndex)
+{
+ NTSTATUS Status;
+ ULONG RecordOffset;
+ PINDEX_ENTRY_ATTRIBUTE IndexEntry;
+ PNTFS_ATTR_CONTEXT IndexAllocationCtx;
+ ULONGLONG IndexAllocationSize;
+ PINDEX_BUFFER IndexBuffer;
+
+ DPRINT("BrowseIndexEntries(%p, %p, %p, %u, %p, %p, %wZ, %u, %u, %u, %p)\n", Vcb, MftRecord, IndexRecord, IndexBlockSize, FirstEntry, LastEntry, FileName, *StartEntry, *CurrentEntry, DirSearch, OutMFTIndex);
+
+ IndexEntry = FirstEntry;
+ while (IndexEntry < LastEntry &&
+ !(IndexEntry->Flags & NTFS_INDEX_ENTRY_END))
+ {
+ if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) > 0x10 &&
+ *CurrentEntry >= *StartEntry &&
+ IndexEntry->FileName.NameType != NTFS_FILE_NAME_DOS &&
+ CompareFileName(FileName, IndexEntry, DirSearch))
+ {
+ *StartEntry = *CurrentEntry;
+ *OutMFTIndex = (IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK);
+ return STATUS_SUCCESS;
+ }
+
+ (*CurrentEntry) += 1;
+ ASSERT(IndexEntry->Length >= sizeof(INDEX_ENTRY_ATTRIBUTE));
+ IndexEntry = (PINDEX_ENTRY_ATTRIBUTE)((PCHAR)IndexEntry + IndexEntry->Length);
+ }
+
+ /* If we're already browsing a subnode */
+ if (IndexRecord == NULL)
+ {
+ return STATUS_OBJECT_PATH_NOT_FOUND;
+ }
+
+ /* If there's no subnode */
+ if (!(IndexEntry->Flags & NTFS_INDEX_ENTRY_NODE))
+ {
+ return STATUS_OBJECT_PATH_NOT_FOUND;
+ }
+
+ Status = FindAttribute(Vcb, MftRecord, AttributeIndexAllocation, L"$I30", 4, &IndexAllocationCtx);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT("Corrupted filesystem!\n");
+ return Status;
+ }
+
+ IndexAllocationSize = AttributeDataLength(&IndexAllocationCtx->Record);
+ Status = STATUS_OBJECT_PATH_NOT_FOUND;
+ for (RecordOffset = 0; RecordOffset < IndexAllocationSize; RecordOffset += IndexBlockSize)
+ {
+ ReadAttribute(Vcb, IndexAllocationCtx, RecordOffset, IndexRecord, IndexBlockSize);
+ Status = FixupUpdateSequenceArray(Vcb, &((PFILE_RECORD_HEADER)IndexRecord)->Ntfs);
+ if (!NT_SUCCESS(Status))
+ {
+ break;
+ }
+
+ IndexBuffer = (PINDEX_BUFFER)IndexRecord;
+ ASSERT(IndexBuffer->Ntfs.Type == NRH_INDX_TYPE);
+ ASSERT(IndexBuffer->Header.AllocatedSize + FIELD_OFFSET(INDEX_BUFFER, Header) == IndexBlockSize);
+ FirstEntry = (PINDEX_ENTRY_ATTRIBUTE)((ULONG_PTR)&IndexBuffer->Header + IndexBuffer->Header.FirstEntryOffset);
+ LastEntry = (PINDEX_ENTRY_ATTRIBUTE)((ULONG_PTR)&IndexBuffer->Header + IndexBuffer->Header.TotalSizeOfEntries);
+ ASSERT(LastEntry <= (PINDEX_ENTRY_ATTRIBUTE)((ULONG_PTR)IndexBuffer + IndexBlockSize));
+
+ Status = BrowseIndexEntries(NULL, NULL, NULL, 0, FirstEntry, LastEntry, FileName, StartEntry, CurrentEntry, DirSearch, OutMFTIndex);
+ if (NT_SUCCESS(Status))
+ {
+ break;
+ }
+ }
+
+ ReleaseAttributeContext(IndexAllocationCtx);
+ return Status;
+}
NTSTATUS
NtfsFindMftRecord(PDEVICE_EXTENSION Vcb,
{
PFILE_RECORD_HEADER MftRecord;
PNTFS_ATTR_CONTEXT IndexRootCtx;
- PNTFS_ATTR_CONTEXT IndexBitmapCtx;
- PNTFS_ATTR_CONTEXT IndexAllocationCtx;
PINDEX_ROOT_ATTRIBUTE IndexRoot;
- PINDEX_BUFFER IndexBuffer;
- ULONGLONG BitmapDataSize;
- ULONGLONG IndexAllocationSize;
- PCHAR BitmapData;
PCHAR IndexRecord;
PINDEX_ENTRY_ATTRIBUTE IndexEntry, IndexEntryEnd;
- ULONG RecordOffset;
- ULONG IndexBlockSize;
NTSTATUS Status;
ULONG CurrentEntry = 0;
- DPRINT("NtfsFindMftRecord(%p, %I64d, %wZ, %p, %u, %p)\n", Vcb, MFTIndex, FileName, FirstEntry, DirSearch, OutMFTIndex);
+ DPRINT("NtfsFindMftRecord(%p, %I64d, %wZ, %u, %u, %p)\n", Vcb, MFTIndex, FileName, *FirstEntry, DirSearch, OutMFTIndex);
MftRecord = ExAllocatePoolWithTag(NonPagedPool,
Vcb->NtfsInfo.BytesPerFileRecord,
return STATUS_INSUFFICIENT_RESOURCES;
}
- if (NT_SUCCESS(ReadFileRecord(Vcb, MFTIndex, MftRecord)))
+ Status = ReadFileRecord(Vcb, MFTIndex, MftRecord);
+ if (!NT_SUCCESS(Status))
{
- ASSERT(MftRecord->Ntfs.Type == NRH_FILE_TYPE);
-
- Status = FindAttribute(Vcb, MftRecord, AttributeIndexRoot, L"$I30", 4, &IndexRootCtx);
- if (!NT_SUCCESS(Status))
- {
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return Status;
- }
+ ExFreePoolWithTag(MftRecord, TAG_NTFS);
+ return Status;
+ }
- IndexRecord = ExAllocatePoolWithTag(NonPagedPool, Vcb->NtfsInfo.BytesPerIndexRecord, TAG_NTFS);
- if (IndexRecord == NULL)
- {
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
+ ASSERT(MftRecord->Ntfs.Type == NRH_FILE_TYPE);
+ Status = FindAttribute(Vcb, MftRecord, AttributeIndexRoot, L"$I30", 4, &IndexRootCtx);
+ if (!NT_SUCCESS(Status))
+ {
+ ExFreePoolWithTag(MftRecord, TAG_NTFS);
+ return Status;
+ }
- ReadAttribute(Vcb, IndexRootCtx, 0, IndexRecord, Vcb->NtfsInfo.BytesPerIndexRecord);
- IndexRoot = (PINDEX_ROOT_ATTRIBUTE)IndexRecord;
- IndexEntry = (PINDEX_ENTRY_ATTRIBUTE)((PCHAR)&IndexRoot->Header + IndexRoot->Header.FirstEntryOffset);
- /* Index root is always resident. */
- IndexEntryEnd = (PINDEX_ENTRY_ATTRIBUTE)(IndexRecord + IndexRoot->Header.TotalSizeOfEntries);
+ IndexRecord = ExAllocatePoolWithTag(NonPagedPool, Vcb->NtfsInfo.BytesPerIndexRecord, TAG_NTFS);
+ if (IndexRecord == NULL)
+ {
ReleaseAttributeContext(IndexRootCtx);
+ ExFreePoolWithTag(MftRecord, TAG_NTFS);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
- DPRINT("IndexRecordSize: %x IndexBlockSize: %x\n", Vcb->NtfsInfo.BytesPerIndexRecord, IndexRoot->SizeOfEntry);
-
- while (IndexEntry < IndexEntryEnd &&
- !(IndexEntry->Flags & NTFS_INDEX_ENTRY_END))
- {
- UNICODE_STRING EntryName;
- EntryName.Buffer = IndexEntry->FileName.Name;
- EntryName.Length =
- EntryName.MaximumLength = IndexEntry->FileName.NameLength * sizeof(WCHAR);
-
- if (IndexEntry->Flags & NTFS_INDEX_ENTRY_NODE)
- DPRINT1("Warning: sub-node browsing unimplemented! (%wZ)\n", &EntryName);
-
- if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) > 0x10 &&
- CurrentEntry >= *FirstEntry &&
- CompareFileName(FileName, IndexEntry, DirSearch))
- {
- *OutMFTIndex = (IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK);
- *FirstEntry = CurrentEntry;
- ExFreePoolWithTag(IndexRecord, TAG_NTFS);
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return STATUS_SUCCESS;
- }
-
- ++CurrentEntry;
- IndexEntry = (PINDEX_ENTRY_ATTRIBUTE)((PCHAR)IndexEntry + IndexEntry->Length);
- }
-
- if (IndexRoot->Header.Flags & INDEX_ROOT_LARGE)
- {
- DPRINT("Large Index!\n");
-
- IndexBlockSize = IndexRoot->SizeOfEntry;
-
- Status = FindAttribute(Vcb, MftRecord, AttributeBitmap, L"$I30", 4, &IndexBitmapCtx);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Corrupted filesystem!\n");
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return Status;
- }
- BitmapDataSize = AttributeDataLength(&IndexBitmapCtx->Record);
- DPRINT("BitmapDataSize: %x\n", (ULONG)BitmapDataSize);
- if(BitmapDataSize <= 0xFFFFFFFF)
- BitmapData = ExAllocatePoolWithTag(NonPagedPool, (ULONG)BitmapDataSize, TAG_NTFS);
- else
- BitmapData = NULL;
-
- if (BitmapData == NULL)
- {
- ExFreePoolWithTag(IndexRecord, TAG_NTFS);
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
- ReadAttribute(Vcb, IndexBitmapCtx, 0, BitmapData, (ULONG)BitmapDataSize);
- ReleaseAttributeContext(IndexBitmapCtx);
-
- Status = FindAttribute(Vcb, MftRecord, AttributeIndexAllocation, L"$I30", 4, &IndexAllocationCtx);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Corrupted filesystem!\n");
- ExFreePoolWithTag(BitmapData, TAG_NTFS);
- ExFreePoolWithTag(IndexRecord, TAG_NTFS);
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return Status;
- }
- IndexAllocationSize = AttributeDataLength(&IndexAllocationCtx->Record);
-
- RecordOffset = 0;
-
- for (;;)
- {
- DPRINT("RecordOffset: %x IndexAllocationSize: %x\n", RecordOffset, IndexAllocationSize);
- for (; RecordOffset < IndexAllocationSize;)
- {
- UCHAR Bit = 1 << ((RecordOffset / IndexBlockSize) & 7);
- ULONG Byte = (RecordOffset / IndexBlockSize) >> 3;
- if ((BitmapData[Byte] & Bit))
- break;
- RecordOffset += IndexBlockSize;
- }
-
- if (RecordOffset >= IndexAllocationSize)
- {
- break;
- }
-
- ReadAttribute(Vcb, IndexAllocationCtx, RecordOffset, IndexRecord, IndexBlockSize);
-
- if (!NT_SUCCESS(FixupUpdateSequenceArray(Vcb, &((PFILE_RECORD_HEADER)IndexRecord)->Ntfs)))
- {
- break;
- }
-
- IndexBuffer = (PINDEX_BUFFER)IndexRecord;
- ASSERT(IndexBuffer->Ntfs.Type == NRH_INDX_TYPE);
- ASSERT(IndexBuffer->Header.AllocatedSize + 0x18 == IndexBlockSize);
- IndexEntry = (PINDEX_ENTRY_ATTRIBUTE)((ULONG_PTR)&IndexBuffer->Header + IndexBuffer->Header.FirstEntryOffset);
- IndexEntryEnd = (PINDEX_ENTRY_ATTRIBUTE)((ULONG_PTR)&IndexBuffer->Header + IndexBuffer->Header.TotalSizeOfEntries);
- ASSERT(IndexEntryEnd <= (PINDEX_ENTRY_ATTRIBUTE)((ULONG_PTR)IndexBuffer + IndexBlockSize));
-
- while (IndexEntry < IndexEntryEnd &&
- !(IndexEntry->Flags & NTFS_INDEX_ENTRY_END))
- {
- UNICODE_STRING EntryName;
- EntryName.Buffer = IndexEntry->FileName.Name;
- EntryName.Length =
- EntryName.MaximumLength = IndexEntry->FileName.NameLength * sizeof(WCHAR);
-
- if (IndexEntry->Flags & NTFS_INDEX_ENTRY_NODE)
- DPRINT1("Warning: sub-node browsing unimplemented! (%wZ)\n", &EntryName);
-
- if ((IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK) > 0x10 &&
- CurrentEntry >= *FirstEntry &&
- CompareFileName(FileName, IndexEntry, DirSearch))
- {
- DPRINT("File found\n");
- *OutMFTIndex = (IndexEntry->Data.Directory.IndexedFile & NTFS_MFT_MASK);
- *FirstEntry = CurrentEntry;
- ExFreePoolWithTag(BitmapData, TAG_NTFS);
- ExFreePoolWithTag(IndexRecord, TAG_NTFS);
- ExFreePoolWithTag(MftRecord, TAG_NTFS);
- ReleaseAttributeContext(IndexAllocationCtx);
- return STATUS_SUCCESS;
- }
-
- ++CurrentEntry;
- ASSERT(IndexEntry->Length >= sizeof(INDEX_ENTRY_ATTRIBUTE));
- IndexEntry = (PINDEX_ENTRY_ATTRIBUTE)((PCHAR)IndexEntry + IndexEntry->Length);
- }
+ ReadAttribute(Vcb, IndexRootCtx, 0, IndexRecord, Vcb->NtfsInfo.BytesPerIndexRecord);
+ IndexRoot = (PINDEX_ROOT_ATTRIBUTE)IndexRecord;
+ IndexEntry = (PINDEX_ENTRY_ATTRIBUTE)((PCHAR)&IndexRoot->Header + IndexRoot->Header.FirstEntryOffset);
+ /* Index root is always resident. */
+ IndexEntryEnd = (PINDEX_ENTRY_ATTRIBUTE)(IndexRecord + IndexRoot->Header.TotalSizeOfEntries);
+ ReleaseAttributeContext(IndexRootCtx);
- RecordOffset += IndexBlockSize;
- }
+ DPRINT("IndexRecordSize: %x IndexBlockSize: %x\n", Vcb->NtfsInfo.BytesPerIndexRecord, IndexRoot->SizeOfEntry);
- ReleaseAttributeContext(IndexAllocationCtx);
- ExFreePoolWithTag(BitmapData, TAG_NTFS);
- }
+ Status = BrowseIndexEntries(Vcb, MftRecord, IndexRecord, IndexRoot->SizeOfEntry, IndexEntry, IndexEntryEnd, FileName, FirstEntry, &CurrentEntry, DirSearch, OutMFTIndex);
- ExFreePoolWithTag(IndexRecord, TAG_NTFS);
- }
- else
- {
- DPRINT("Can't read MFT record\n");
- }
+ ExFreePoolWithTag(IndexRecord, TAG_NTFS);
ExFreePoolWithTag(MftRecord, TAG_NTFS);
- return STATUS_OBJECT_PATH_NOT_FOUND;
+ return Status;
}
NTSTATUS
NtfsLookupFileAt(PDEVICE_EXTENSION Vcb,
PUNICODE_STRING PathName,
PFILE_RECORD_HEADER *FileRecord,
- PNTFS_ATTR_CONTEXT *DataContext,
PULONGLONG MFTIndex,
ULONGLONG CurrentMFTIndex)
{
NTSTATUS Status;
ULONG FirstEntry = 0;
- DPRINT("NtfsLookupFileAt(%p, %wZ, %p, %p, %I64x)\n", Vcb, PathName, FileRecord, DataContext, CurrentMFTIndex);
+ DPRINT("NtfsLookupFileAt(%p, %wZ, %p, %I64x)\n", Vcb, PathName, FileRecord, CurrentMFTIndex);
FsRtlDissectName(*PathName, &Current, &Remaining);
return Status;
}
- if (!((*FileRecord)->Flags & FRH_DIRECTORY))
- {
- Status = FindAttribute(Vcb, *FileRecord, AttributeData, L"", 0, DataContext);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtfsLookupFileAt: Can't find data attribute\n");
- ExFreePoolWithTag(*FileRecord, TAG_NTFS);
- return Status;
- }
- }
- else
- {
- *DataContext = NULL;
- }
-
*MFTIndex = CurrentMFTIndex;
return STATUS_SUCCESS;
NtfsLookupFile(PDEVICE_EXTENSION Vcb,
PUNICODE_STRING PathName,
PFILE_RECORD_HEADER *FileRecord,
- PNTFS_ATTR_CONTEXT *DataContext,
PULONGLONG MFTIndex)
{
- return NtfsLookupFileAt(Vcb, PathName, FileRecord, DataContext, MFTIndex, NTFS_FILE_ROOT);
+ return NtfsLookupFileAt(Vcb, PathName, FileRecord, MFTIndex, NTFS_FILE_ROOT);
}
NTSTATUS
PUNICODE_STRING SearchPattern,
PULONG FirstEntry,
PFILE_RECORD_HEADER *FileRecord,
- PNTFS_ATTR_CONTEXT *DataContext,
PULONGLONG MFTIndex,
ULONGLONG CurrentMFTIndex)
{
NTSTATUS Status;
- DPRINT("NtfsFindFileAt(%p, %wZ, %p, %p, %p, %p, %I64x)\n", Vcb, SearchPattern, FirstEntry, FileRecord, DataContext, MFTIndex, CurrentMFTIndex);
+ DPRINT("NtfsFindFileAt(%p, %wZ, %u, %p, %p, %I64x)\n", Vcb, SearchPattern, *FirstEntry, FileRecord, MFTIndex, CurrentMFTIndex);
Status = NtfsFindMftRecord(Vcb, CurrentMFTIndex, SearchPattern, FirstEntry, TRUE, &CurrentMFTIndex);
if (!NT_SUCCESS(Status))
return Status;
}
- if (!((*FileRecord)->Flags & FRH_DIRECTORY))
- {
- Status = FindAttribute(Vcb, *FileRecord, AttributeData, L"", 0, DataContext);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtfsFindFileAt: Can't find data attribute\n");
- ExFreePoolWithTag(*FileRecord, TAG_NTFS);
- return Status;
- }
- }
- else
- {
- *DataContext = NULL;
- }
-
*MFTIndex = CurrentMFTIndex;
return STATUS_SUCCESS;
projects / reactos.git / blobdiff