Initial commit - WPinternals 2.6

DiscUtils/Ntfs/ReparsePoints.cs

@@ -0,0 +1,125 @@
+//
+// Copyright (c) 2008-2011, Kenneth Bell
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+namespace DiscUtils.Ntfs
+{
+    using System.Globalization;
+    using System.IO;
+
+    internal class ReparsePoints
+    {
+        private IndexView<Key, Data> _index;
+        private File _file;
+
+        public ReparsePoints(File file)
+        {
+            _file = file;
+            _index = new IndexView<Key, Data>(file.GetIndex("$R"));
+        }
+
+        internal void Add(uint tag, FileRecordReference file)
+        {
+            Key newKey = new Key();
+            newKey.Tag = tag;
+            newKey.File = file;
+
+            Data data = new Data();
+
+            _index[newKey] = data;
+            _file.UpdateRecordInMft();
+        }
+
+        internal void Remove(uint tag, FileRecordReference file)
+        {
+            Key key = new Key();
+            key.Tag = tag;
+            key.File = file;
+
+            _index.Remove(key);
+            _file.UpdateRecordInMft();
+        }
+
+        internal void Dump(TextWriter writer, string indent)
+        {
+            writer.WriteLine(indent + "REPARSE POINT INDEX");
+
+            foreach (var entry in _index.Entries)
+            {
+                writer.WriteLine(indent + "  REPARSE POINT INDEX ENTRY");
+                writer.WriteLine(indent + "            Tag: " + entry.Key.Tag.ToString("x", CultureInfo.InvariantCulture));
+                writer.WriteLine(indent + "  MFT Reference: " + entry.Key.File);
+            }
+        }
+
+        internal sealed class Key : IByteArraySerializable
+        {
+            public uint Tag;
+            public FileRecordReference File;
+
+            public int Size
+            {
+                get { return 12; }
+            }
+
+            public int ReadFrom(byte[] buffer, int offset)
+            {
+                Tag = Utilities.ToUInt32LittleEndian(buffer, offset);
+                File = new FileRecordReference(Utilities.ToUInt64LittleEndian(buffer, offset + 4));
+                return 12;
+            }
+
+            public void WriteTo(byte[] buffer, int offset)
+            {
+                Utilities.WriteBytesLittleEndian(Tag, buffer, offset);
+                Utilities.WriteBytesLittleEndian(File.Value, buffer, offset + 4);
+                ////Utilities.WriteBytesLittleEndian((uint)0, buffer, offset + 12);
+            }
+
+            public override string ToString()
+            {
+                return string.Format(CultureInfo.InvariantCulture, "{0:x}:", Tag) + File;
+            }
+        }
+
+        internal sealed class Data : IByteArraySerializable
+        {
+            public int Size
+            {
+                get { return 0; }
+            }
+
+            public int ReadFrom(byte[] buffer, int offset)
+            {
+                return 0;
+            }
+
+            public void WriteTo(byte[] buffer, int offset)
+            {
+            }
+
+            public override string ToString()
+            {
+                return "<no data>";
+            }
+        }
+    }
+}