Adds support for ECMA-67, closes #12.

DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj

@@ -113,6 +113,7 @@
     <Compile Include="Cram.cs" />
     <Compile Include="CBM.cs" />
     <Compile Include="UDF.cs" />
+    <Compile Include="ECMA67.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>

DiscImageChef.Filesystems/ECMA67.cs

@@ -0,0 +1,193 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : ECMA67.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : ECMA-67 plugin.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Identifies the ECMA-67 file system 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.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using DiscImageChef.ImagePlugins;
+
+namespace DiscImageChef.Filesystems
+{
+    class ECMA67 : Filesystem
+    {
+        public ECMA67()
+        {
+            Name = "ECMA-67";
+            PluginUUID = new Guid("62A2D44A-CBC1-4377-B4B6-28C5C92034A1");
+        }
+
+        public ECMA67(ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+        {
+            Name = "ECMA-67";
+            PluginUUID = new Guid("62A2D44A-CBC1-4377-B4B6-28C5C92034A1");
+        }
+
+        readonly byte[] ECMA67_Magic = { 0x56, 0x4F, 0x4C };
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct VolumeLabel
+        {
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+            public byte[] labelIdentifier;
+            public byte labelNumber;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
+            public byte[] volumeIdentifier;
+            public byte volumeAccessibility;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 26)]
+            public byte[] reserved1;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 14)]
+            public byte[] owner;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
+            public byte[] reserved2;
+            public byte surface;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
+            public byte[] reserved3;
+            public byte recordLength;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] reserved4;
+            public byte fileLabelAllocation;
+            public byte labelStandardVersion;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 48)]
+            public byte[] reserved5;
+        }
+
+        public override bool Identify(ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+        {
+            if(partitionStart > 0)
+                return false;
+
+            if(partitionEnd < 8)
+                return false;
+
+            byte[] sector = imagePlugin.ReadSector(6);
+
+            if(sector.Length != 128)
+                return false;
+
+            VolumeLabel vol = new VolumeLabel();
+            IntPtr volPtr = Marshal.AllocHGlobal(Marshal.SizeOf(vol));
+            Marshal.Copy(sector, 0, volPtr, Marshal.SizeOf(vol));
+            vol = (VolumeLabel)Marshal.PtrToStructure(volPtr, typeof(VolumeLabel));
+            Marshal.FreeHGlobal(volPtr);
+
+            return ECMA67_Magic.SequenceEqual(vol.labelIdentifier) && vol.labelNumber == 1 && vol.recordLength == 0x31;
+        }
+
+        public override void GetInformation(ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
+        {
+            byte[] sector = imagePlugin.ReadSector(6);
+
+            StringBuilder sbInformation = new StringBuilder();
+
+            VolumeLabel vol = new VolumeLabel();
+            IntPtr volPtr = Marshal.AllocHGlobal(Marshal.SizeOf(vol));
+            Marshal.Copy(sector, 0, volPtr, Marshal.SizeOf(vol));
+            vol = (VolumeLabel)Marshal.PtrToStructure(volPtr, typeof(VolumeLabel));
+            Marshal.FreeHGlobal(volPtr);
+
+            sbInformation.AppendLine("ECMA-67");
+
+            sbInformation.AppendFormat("Volume name: {0}", Encoding.ASCII.GetString(vol.volumeIdentifier)).AppendLine();
+            sbInformation.AppendFormat("Volume owner: {0}", Encoding.ASCII.GetString(vol.owner)).AppendLine();
+
+            xmlFSType = new Schemas.FileSystemType();
+            xmlFSType.Type = "ECMA-67";
+            xmlFSType.ClusterSize = 256;
+            xmlFSType.Clusters = (long)(partitionEnd - partitionStart + 1);
+            xmlFSType.VolumeName = Encoding.ASCII.GetString(vol.volumeIdentifier);
+
+            information = sbInformation.ToString();
+        }
+
+        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

@@ -139,6 +139,7 @@ Supported file systems for identification and information only
 * Cram file system
 * Commodore 1540/1541/1571/1581 filesystems
 * Universal Disk Format (UDF)
+* ECMA-67: 130mm Flexible Disk Cartridge Labelling and File Structure for Information Interchange
 
 Supported checksums
 ===================

TODO

@@ -14,7 +14,6 @@ Filesystem plugins:
 --- Add support for NwFS
 --- Add support for X-Box filesystems
 --- Add support for ReFS
---- Add support for ECMA-67
 
 Partitioning scheme plugins:
 --- Add support for AIX partitions