private void CopyFiles(NtfsFileSystem sourceNtfs, NtfsFileSystem destNtfs, string path, bool subs) { if (subs) { foreach (var dir in sourceNtfs.GetDirectories(path)) { if (!IsExcluded(dir)) { int hardLinksRemaining = sourceNtfs.GetHardLinkCount(dir) - 1; bool newDir = false; long sourceFileId = sourceNtfs.GetFileId(dir); string refPath; if (_uniqueFiles.TryGetValue(sourceFileId, out refPath)) { // If this is another name for a known dir, recreate the hard link destNtfs.CreateHardLink(refPath, dir); } else { destNtfs.CreateDirectory(dir); newDir = true; FileAttributes fileAttrs = sourceNtfs.GetAttributes(dir); if ((fileAttrs & FileAttributes.ReparsePoint) != 0) { destNtfs.SetReparsePoint(dir, sourceNtfs.GetReparsePoint(dir)); } destNtfs.SetAttributes(dir, fileAttrs); destNtfs.SetSecurity(dir, sourceNtfs.GetSecurity(dir)); } // File may have a short name string shortName = sourceNtfs.GetShortName(dir); if (!string.IsNullOrEmpty(shortName) && shortName != dir) { destNtfs.SetShortName(dir, shortName); --hardLinksRemaining; } if (newDir) { if (hardLinksRemaining > 0) { _uniqueFiles[sourceFileId] = dir; } CopyFiles(sourceNtfs, destNtfs, dir, subs); } // Set standard information last (includes modification timestamps) destNtfs.SetFileStandardInformation(dir, sourceNtfs.GetFileStandardInformation(dir)); } } } foreach (var file in sourceNtfs.GetFiles(path)) { Console.WriteLine(file); int hardLinksRemaining = sourceNtfs.GetHardLinkCount(file) - 1; long sourceFileId = sourceNtfs.GetFileId(file); string refPath; if (_uniqueFiles.TryGetValue(sourceFileId, out refPath)) { // If this is another name for a known file, recreate the hard link destNtfs.CreateHardLink(refPath, file); } else { CopyFile(sourceNtfs, destNtfs, file); if (hardLinksRemaining > 0) { _uniqueFiles[sourceFileId] = file; } } // File may have a short name string shortName = sourceNtfs.GetShortName(file); if (!string.IsNullOrEmpty(shortName) && shortName != file) { destNtfs.SetShortName(file, shortName); } } }
public NtfsFileSystem Format(Stream stream) { _context = new NtfsContext(); _context.Options = new NtfsOptions(); _context.RawStream = stream; _context.AttributeDefinitions = new AttributeDefinitions(); string localAdminString = (ComputerAccount == null) ? "LA" : new SecurityIdentifier(WellKnownSidType.AccountAdministratorSid, ComputerAccount).ToString(); using (new NtfsTransaction()) { _clusterSize = 4096; _mftRecordSize = 1024; _indexBufferSize = 4096; long totalClusters = ((SectorCount - 1) * Sizes.Sector) / _clusterSize; // Allocate a minimum of 8KB for the boot loader, but allow for more int numBootClusters = Utilities.Ceil(Math.Max((int)(8 * Sizes.OneKiB), BootCode == null ? 0 : BootCode.Length), _clusterSize); // Place MFT mirror in the middle of the volume _mftMirrorCluster = totalClusters / 2; uint numMftMirrorClusters = 1; // The bitmap is also near the middle _bitmapCluster = _mftMirrorCluster + 13; int numBitmapClusters = (int)Utilities.Ceil((totalClusters / 8), _clusterSize); // The MFT bitmap goes 'near' the start - approx 10% in - but ensure we avoid the bootloader long mftBitmapCluster = Math.Max(3 + (totalClusters / 10), numBootClusters); int numMftBitmapClusters = 1; // The MFT follows it's bitmap _mftCluster = mftBitmapCluster + numMftBitmapClusters; int numMftClusters = 8; if (_mftCluster + numMftClusters > _mftMirrorCluster || _bitmapCluster + numBitmapClusters >= totalClusters) { throw new IOException("Unable to determine initial layout of NTFS metadata - disk may be too small"); } CreateBiosParameterBlock(stream, numBootClusters * _clusterSize); _context.Mft = new MasterFileTable(_context); File mftFile = _context.Mft.InitializeNew(_context, mftBitmapCluster, (ulong)numMftBitmapClusters, (long)_mftCluster, (ulong)numMftClusters); File bitmapFile = CreateFixedSystemFile(MasterFileTable.BitmapIndex, _bitmapCluster, (ulong)numBitmapClusters, true); _context.ClusterBitmap = new ClusterBitmap(bitmapFile); _context.ClusterBitmap.MarkAllocated(0, numBootClusters); _context.ClusterBitmap.MarkAllocated(_bitmapCluster, numBitmapClusters); _context.ClusterBitmap.MarkAllocated(mftBitmapCluster, numMftBitmapClusters); _context.ClusterBitmap.MarkAllocated(_mftCluster, numMftClusters); _context.ClusterBitmap.SetTotalClusters(totalClusters); bitmapFile.UpdateRecordInMft(); File mftMirrorFile = CreateFixedSystemFile(MasterFileTable.MftMirrorIndex, _mftMirrorCluster, numMftMirrorClusters, true); File logFile = CreateSystemFile(MasterFileTable.LogFileIndex); using (Stream s = logFile.OpenStream(AttributeType.Data, null, FileAccess.ReadWrite)) { s.SetLength(Math.Min(Math.Max(2 * Sizes.OneMiB, (totalClusters / 500) * (long)_clusterSize), 64 * Sizes.OneMiB)); byte[] buffer = new byte[1024 * 1024]; for (int i = 0; i < buffer.Length; ++i) { buffer[i] = 0xFF; } long totalWritten = 0; while (totalWritten < s.Length) { int toWrite = (int)Math.Min(s.Length - totalWritten, buffer.Length); s.Write(buffer, 0, toWrite); totalWritten += toWrite; } } File volumeFile = CreateSystemFile(MasterFileTable.VolumeIndex); NtfsStream volNameStream = volumeFile.CreateStream(AttributeType.VolumeName, null); volNameStream.SetContent(new VolumeName(Label ?? "New Volume")); NtfsStream volInfoStream = volumeFile.CreateStream(AttributeType.VolumeInformation, null); volInfoStream.SetContent(new VolumeInformation(3, 1, VolumeInformationFlags.None)); SetSecurityAttribute(volumeFile, "O:" + localAdminString + "G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)"); volumeFile.UpdateRecordInMft(); _context.GetFileByIndex = delegate(long index) { return new File(_context, _context.Mft.GetRecord(index, false)); }; _context.AllocateFile = delegate(FileRecordFlags frf) { return new File(_context, _context.Mft.AllocateRecord(frf, false)); }; File attrDefFile = CreateSystemFile(MasterFileTable.AttrDefIndex); _context.AttributeDefinitions.WriteTo(attrDefFile); SetSecurityAttribute(attrDefFile, "O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)"); attrDefFile.UpdateRecordInMft(); File bootFile = CreateFixedSystemFile(MasterFileTable.BootIndex, 0, (uint)numBootClusters, false); SetSecurityAttribute(bootFile, "O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)"); bootFile.UpdateRecordInMft(); File badClusFile = CreateSystemFile(MasterFileTable.BadClusIndex); badClusFile.CreateStream(AttributeType.Data, "$Bad"); badClusFile.UpdateRecordInMft(); File secureFile = CreateSystemFile(MasterFileTable.SecureIndex, FileRecordFlags.HasViewIndex); secureFile.RemoveStream(secureFile.GetStream(AttributeType.Data, null)); _context.SecurityDescriptors = SecurityDescriptors.Initialize(secureFile); secureFile.UpdateRecordInMft(); File upcaseFile = CreateSystemFile(MasterFileTable.UpCaseIndex); _context.UpperCase = UpperCase.Initialize(upcaseFile); upcaseFile.UpdateRecordInMft(); File objIdFile = File.CreateNew(_context, FileRecordFlags.IsMetaFile | FileRecordFlags.HasViewIndex, FileAttributeFlags.None); objIdFile.RemoveStream(objIdFile.GetStream(AttributeType.Data, null)); objIdFile.CreateIndex("$O", (AttributeType)0, AttributeCollationRule.MultipleUnsignedLongs); objIdFile.UpdateRecordInMft(); File reparseFile = File.CreateNew(_context, FileRecordFlags.IsMetaFile | FileRecordFlags.HasViewIndex, FileAttributeFlags.None); reparseFile.CreateIndex("$R", (AttributeType)0, AttributeCollationRule.MultipleUnsignedLongs); reparseFile.UpdateRecordInMft(); File quotaFile = File.CreateNew(_context, FileRecordFlags.IsMetaFile | FileRecordFlags.HasViewIndex, FileAttributeFlags.None); Quotas.Initialize(quotaFile); Directory extendDir = CreateSystemDirectory(MasterFileTable.ExtendIndex); extendDir.AddEntry(objIdFile, "$ObjId", FileNameNamespace.Win32AndDos); extendDir.AddEntry(reparseFile, "$Reparse", FileNameNamespace.Win32AndDos); extendDir.AddEntry(quotaFile, "$Quota", FileNameNamespace.Win32AndDos); extendDir.UpdateRecordInMft(); Directory rootDir = CreateSystemDirectory(MasterFileTable.RootDirIndex); rootDir.AddEntry(mftFile, "$MFT", FileNameNamespace.Win32AndDos); rootDir.AddEntry(mftMirrorFile, "$MFTMirr", FileNameNamespace.Win32AndDos); rootDir.AddEntry(logFile, "$LogFile", FileNameNamespace.Win32AndDos); rootDir.AddEntry(volumeFile, "$Volume", FileNameNamespace.Win32AndDos); rootDir.AddEntry(attrDefFile, "$AttrDef", FileNameNamespace.Win32AndDos); rootDir.AddEntry(rootDir, ".", FileNameNamespace.Win32AndDos); rootDir.AddEntry(bitmapFile, "$Bitmap", FileNameNamespace.Win32AndDos); rootDir.AddEntry(bootFile, "$Boot", FileNameNamespace.Win32AndDos); rootDir.AddEntry(badClusFile, "$BadClus", FileNameNamespace.Win32AndDos); rootDir.AddEntry(secureFile, "$Secure", FileNameNamespace.Win32AndDos); rootDir.AddEntry(upcaseFile, "$UpCase", FileNameNamespace.Win32AndDos); rootDir.AddEntry(extendDir, "$Extend", FileNameNamespace.Win32AndDos); SetSecurityAttribute(rootDir, "O:" + localAdminString + "G:BUD:(A;OICI;FA;;;BA)(A;OICI;FA;;;SY)(A;OICIIO;GA;;;CO)(A;OICI;0x1200a9;;;BU)(A;CI;LC;;;BU)(A;CIIO;DC;;;BU)(A;;0x1200a9;;;WD)"); rootDir.UpdateRecordInMft(); // A number of records are effectively 'reserved' for (long i = MasterFileTable.ExtendIndex + 1; i <= 15; i++) { File f = CreateSystemFile(i); SetSecurityAttribute(f, "O:S-1-5-21-1708537768-746137067-1060284298-1003G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)"); f.UpdateRecordInMft(); } } // XP-style security permissions setup NtfsFileSystem ntfs = new NtfsFileSystem(stream); ntfs.SetSecurity(@"$MFT", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)")); ntfs.SetSecurity(@"$MFTMirr", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)")); ntfs.SetSecurity(@"$LogFile", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)")); ntfs.SetSecurity(@"$Bitmap", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)")); ntfs.SetSecurity(@"$BadClus", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)")); ntfs.SetSecurity(@"$UpCase", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;FR;;;SY)(A;;FR;;;BA)")); ntfs.SetSecurity(@"$Secure", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)")); ntfs.SetSecurity(@"$Extend", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)")); ntfs.SetSecurity(@"$Extend\$Quota", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)")); ntfs.SetSecurity(@"$Extend\$ObjId", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)")); ntfs.SetSecurity(@"$Extend\$Reparse", new RawSecurityDescriptor("O:" + localAdminString + "G:BAD:(A;;0x12019f;;;SY)(A;;0x12019f;;;BA)")); ntfs.CreateDirectory("System Volume Information"); ntfs.SetAttributes("System Volume Information", FileAttributes.Hidden | FileAttributes.System | FileAttributes.Directory); ntfs.SetSecurity("System Volume Information", new RawSecurityDescriptor("O:BAG:SYD:(A;OICI;FA;;;SY)")); using (Stream s = ntfs.OpenFile(@"System Volume Information\MountPointManagerRemoteDatabase", FileMode.Create)) { } ntfs.SetAttributes(@"System Volume Information\MountPointManagerRemoteDatabase", FileAttributes.Hidden | FileAttributes.System | FileAttributes.Archive); ntfs.SetSecurity(@"System Volume Information\MountPointManagerRemoteDatabase", new RawSecurityDescriptor("O:BAG:SYD:(A;;FA;;;SY)")); return ntfs; }
private void CopyFile(NtfsFileSystem sourceNtfs, NtfsFileSystem destNtfs, string path) { if (IsExcluded(path)) { return; } using (Stream s = sourceNtfs.OpenFile(path, FileMode.Open, FileAccess.Read)) using (Stream d = destNtfs.OpenFile(path, FileMode.Create, FileAccess.ReadWrite)) { d.SetLength(s.Length); int numRead = s.Read(s_copyBuffer, 0, s_copyBuffer.Length); while (numRead > 0) { d.Write(s_copyBuffer, 0, numRead); numRead = s.Read(s_copyBuffer, 0, s_copyBuffer.Length); } } destNtfs.SetSecurity(path, sourceNtfs.GetSecurity(path)); destNtfs.SetFileStandardInformation(path, sourceNtfs.GetFileStandardInformation(path)); }