Adds support for SmartFileSystem, closes #36

DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj

@@ -106,6 +106,7 @@
     <Compile Include="Reiser4.cs" />
     <Compile Include="XFS.cs" />
     <Compile Include="PFS.cs" />
+    <Compile Include="SFS.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>

DiscImageChef.Filesystems/SFS.cs

@@ -0,0 +1,205 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : AmigaDOS.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Amiga Fast File System plugin.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Identifies the SmartFileSystem and shows information.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This library is free software; you can redistribute it and/or modify
+//     it under the terms of the GNU Lesser General Public License as
+//     published by the Free Software Foundation; either version 2.1 of the
+//     License, or (at your option) any later version.
+//
+//     This library is distributed in the hope that it will be useful, but
+//     WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+//     Lesser General Public License for more details.
+//
+//     You should have received a copy of the GNU Lesser General Public
+//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2016 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using System.Text;
+using System.Collections.Generic;
+using DiscImageChef.Console;
+using System.Runtime.InteropServices;
+
+namespace DiscImageChef.Filesystems
+{
+	class SFS : Filesystem
+	{
+		public SFS()
+		{
+			Name = "SmartFileSystem";
+			PluginUUID = new Guid("26550C19-3671-4A2D-BC2F-F20CEB7F48DC");
+		}
+
+		public SFS(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+		{
+			Name = "SmartFileSystem";
+			PluginUUID = new Guid("26550C19-3671-4A2D-BC2F-F20CEB7F48DC");
+		}
+
+        [Flags]
+        enum SFSFlags : byte
+        {
+            RecyledFolder = 64,
+            CaseSensitive = 128
+        }
+
+		[StructLayout(LayoutKind.Sequential, Pack = 1)]
+		struct RootBlock
+		{
+            public uint blockId;
+            public uint blockChecksum;
+            public uint blockSelfPointer;
+            public ushort version;
+            public ushort sequence;
+            public uint datecreated;
+            public SFSFlags bits;
+            public byte padding1;
+            public ushort padding2;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public uint[] reserved1;
+            public ulong firstbyte;
+            public ulong lastbyte;
+            public uint totalblocks;
+            public uint blocksize;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public uint[] reserved2;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
+            public uint[] reserved3;
+            public uint bitmapbase;
+            public uint adminspacecontainer;
+            public uint rootobjectcontainer;
+            public uint extentbnoderoot;
+            public uint objectnoderoot;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+            public uint[] reserved4;
+		}
+
+		/// <summary>
+		/// Identifier for SFS v1
+		/// </summary>
+		const uint SFS_MAGIC = 0x53465300;
+
+		public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+		{
+			if(partitionStart >= partitionEnd)
+				return false;
+
+			BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
+
+			byte[] sector = imagePlugin.ReadSector(partitionStart);
+
+			uint magic = BigEndianBitConverter.ToUInt32(sector, 0x00);
+
+            return magic == SFS_MAGIC;
+		}
+
+		public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
+		{
+			byte[] RootBlockSector = imagePlugin.ReadSector(partitionStart);
+			RootBlock rootBlock = new RootBlock();
+			rootBlock = BigEndianMarshal.ByteArrayToStructureBigEndian<RootBlock>(RootBlockSector);
+
+			StringBuilder sbInformation = new StringBuilder();
+
+			sbInformation.AppendLine("SmartFileSystem");
+
+            sbInformation.AppendFormat("Volume version {0}", rootBlock.version).AppendLine();
+            sbInformation.AppendFormat("Volume starts on device byte {0} and ends on byte {1}", rootBlock.firstbyte, rootBlock.lastbyte).AppendLine();
+            sbInformation.AppendFormat("Volume has {0} blocks of {1} bytes each", rootBlock.totalblocks, rootBlock.blocksize).AppendLine();
+            sbInformation.AppendFormat("Volume created on {0}", DateHandlers.UNIXUnsignedToDateTime(rootBlock.datecreated).AddYears(8)).AppendLine();
+            sbInformation.AppendFormat("Bitmap starts in block {0}", rootBlock.bitmapbase).AppendLine();
+            sbInformation.AppendFormat("Admin space container starts in block {0}", rootBlock.adminspacecontainer).AppendLine();
+            sbInformation.AppendFormat("Root object container starts in block {0}", rootBlock.rootobjectcontainer).AppendLine();
+            sbInformation.AppendFormat("Root node of the extent B-tree resides in block {0}", rootBlock.extentbnoderoot).AppendLine();
+            sbInformation.AppendFormat("Root node of the object B-tree resides in block {0}", rootBlock.objectnoderoot).AppendLine();
+            if(rootBlock.bits.HasFlag(SFSFlags.CaseSensitive))
+                sbInformation.AppendLine("Volume is case sensitive");
+            if(rootBlock.bits.HasFlag(SFSFlags.RecyledFolder))
+                sbInformation.AppendLine("Volume moves deleted files to a recycled folder");
+            information = sbInformation.ToString();
+
+            xmlFSType = new Schemas.FileSystemType();
+            xmlFSType.Type = "SmartFileSystem";
+            xmlFSType.CreationDate = DateHandlers.UNIXUnsignedToDateTime(rootBlock.datecreated).AddYears(8);
+			xmlFSType.CreationDateSpecified = true;
+            xmlFSType.Clusters = rootBlock.totalblocks;
+            xmlFSType.ClusterSize = (int)rootBlock.blocksize;
+		}
+
+		public override Errno Mount()
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno Mount(bool debug)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno Unmount()
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno GetAttributes(string path, ref FileAttributes attributes)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno ListXAttr(string path, ref List<string> xattrs)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno GetXattr(string path, string xattr, ref byte[] buf)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno Read(string path, long offset, long size, ref byte[] buf)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno ReadDir(string path, ref List<string> contents)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno StatFs(ref FileSystemInfo stat)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno Stat(string path, ref FileEntryInfo stat)
+		{
+			return Errno.NotImplemented;
+		}
+
+		public override Errno ReadLink(string path, ref string dest)
+		{
+			return Errno.NotImplemented;
+		}
+	}
+}

README.md

@@ -132,6 +132,7 @@ Supported file systems for identification and information only
 * Reiser file systems
 * SGI XFS
 * Professional File System
+* SmartFileSystem
 
 Supported checksums
 ===================

TODO

@@ -9,7 +9,6 @@
 --- Add support for XPACK images
 
 Filesystem plugins:
---- Add support for SFS filesystem
 --- Add support for Apple DOS filesystems
 --- Add support for CBM filesystem
 --- Add support for ZFS