internal DirectoryEntry AddEntry(File file, string name, FileNameNamespace nameNamespace)
{
if (name.Length > 255)
{
throw new IOException("Invalid file name, more than 255 characters: " + name);
}
else if (name.IndexOfAny(new char[] { '\0', '/' }) != -1)
{
throw new IOException(@"Invalid file name, contains '\0' or '/': " + name);
}
FileNameRecord newNameRecord = file.GetFileNameRecord(null, true);
newNameRecord.FileNameNamespace = nameNamespace;
newNameRecord.FileName = name;
newNameRecord.ParentDirectory = MftReference;
NtfsStream nameStream = file.CreateStream(AttributeType.FileName, null);
nameStream.SetContent(newNameRecord);
file.HardLinkCount++;
file.UpdateRecordInMft();
Index[newNameRecord] = file.MftReference;
Modified();
UpdateRecordInMft();
return(new DirectoryEntry(this, file.MftReference, newNameRecord));
}
internal void FreshenFileName(FileNameRecord fileName, bool updateMftRecord)
{
//
// Freshen the record from the definitive info in the other attributes
//
StandardInformation si = StandardInformation;
NtfsAttribute anonDataAttr = GetAttribute(AttributeType.Data, null);
fileName.CreationTime = si.CreationTime;
fileName.ModificationTime = si.ModificationTime;
fileName.MftChangedTime = si.MftChangedTime;
fileName.LastAccessTime = si.LastAccessTime;
fileName.Flags = si.FileAttributes;
if (_dirty && NtfsTransaction.Current != null)
{
fileName.MftChangedTime = NtfsTransaction.Current.Timestamp;
}
// Directories don't have directory flag set in StandardInformation, so set from MFT record
if ((_records[0].Flags & FileRecordFlags.IsDirectory) != 0)
{
fileName.Flags |= FileAttributeFlags.Directory;
}
if (anonDataAttr != null)
{
fileName.RealSize = (ulong)anonDataAttr.PrimaryRecord.DataLength;
fileName.AllocatedSize = (ulong)anonDataAttr.PrimaryRecord.AllocatedLength;
}
if (updateMftRecord)
{
foreach (NtfsStream stream in GetStreams(AttributeType.FileName, null))
{
FileNameRecord fnr = stream.GetContent <FileNameRecord>();
if (fnr.Equals(fileName))
{
fnr = new FileNameRecord(fileName);
fnr.Flags &= ~FileAttributeFlags.ReparsePoint;
stream.SetContent(fnr);
}
}
}
}
public FileNameRecord GetFileNameRecord(string name, bool freshened)
{
NtfsAttribute[] attrs = GetAttributes(AttributeType.FileName);
StructuredNtfsAttribute <FileNameRecord> attr = null;
if (String.IsNullOrEmpty(name))
{
if (attrs.Length != 0)
{
attr = (StructuredNtfsAttribute <FileNameRecord>)attrs[0];
}
}
else
{
foreach (StructuredNtfsAttribute <FileNameRecord> a in attrs)
{
if (_context.UpperCase.Compare(a.Content.FileName, name) == 0)
{
attr = a;
}
}
if (attr == null)
{
throw new FileNotFoundException("File name not found on file", name);
}
}
FileNameRecord fnr = attr == null ? new FileNameRecord() : new FileNameRecord(attr.Content);
if (freshened)
{
FreshenFileName(fnr, false);
}
return(fnr);
}
internal void RemoveEntry(DirectoryEntry dirEntry)
{
File file = _context.GetFileByRef(dirEntry.Reference);
FileNameRecord nameRecord = dirEntry.Details;
Index.Remove(dirEntry.Details);
foreach (NtfsStream stream in file.GetStreams(AttributeType.FileName, null))
{
FileNameRecord streamName = stream.GetContent <FileNameRecord>();
if (nameRecord.Equals(streamName))
{
file.RemoveStream(stream);
break;
}
}
file.HardLinkCount--;
file.UpdateRecordInMft();
Modified();
UpdateRecordInMft();
}
internal static string EntryAsString(IndexEntry entry, string fileName, string indexName)
{
IByteArraySerializable keyValue = null;
IByteArraySerializable dataValue = null;
// Try to guess the type of data in the key and data fields from the filename and index name
if (indexName == "$I30")
{
keyValue = new FileNameRecord();
dataValue = new FileRecordReference();
}
else if (fileName == "$ObjId" && indexName == "$O")
{
keyValue = new ObjectIds.IndexKey();
dataValue = new ObjectIdRecord();
}
else if (fileName == "$Reparse" && indexName == "$R")
{
keyValue = new ReparsePoints.Key();
dataValue = new ReparsePoints.Data();
}
else if (fileName == "$Quota")
{
if (indexName == "$O")
{
keyValue = new Quotas.OwnerKey();
dataValue = new Quotas.OwnerRecord();
}
else if (indexName == "$Q")
{
keyValue = new Quotas.OwnerRecord();
dataValue = new Quotas.QuotaRecord();
}
}
else if (fileName == "$Secure")
{
if (indexName == "$SII")
{
keyValue = new SecurityDescriptors.IdIndexKey();
dataValue = new SecurityDescriptors.IdIndexData();
}
else if (indexName == "$SDH")
{
keyValue = new SecurityDescriptors.HashIndexKey();
dataValue = new SecurityDescriptors.IdIndexData();
}
}
try
{
if (keyValue != null && dataValue != null)
{
keyValue.ReadFrom(entry.KeyBuffer, 0);
dataValue.ReadFrom(entry.DataBuffer, 0);
return("{" + keyValue + "-->" + dataValue + "}");
}
}
catch
{
return("{Parsing-Error}");
}
return("{Unknown-Index-Type}");
}
