Adds support for Professional File System, closes #35

DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj

@@ -105,6 +105,7 @@
     <Compile Include="Reiser.cs" />
     <Compile Include="Reiser4.cs" />
     <Compile Include="XFS.cs" />
+    <Compile Include="PFS.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>

DiscImageChef.Filesystems/PFS.cs

@@ -0,0 +1,300 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : AmigaDOS.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Amiga Fast File System plugin.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Identifies the Professional 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.Text;
+using System.Collections.Generic;
+using DiscImageChef.Console;
+using System.Runtime.InteropServices;
+
+namespace DiscImageChef.Filesystems
+{
+    class PFS : Filesystem
+    {
+        public PFS()
+        {
+            Name = "Professional File System";
+            PluginUUID = new Guid("68DE769E-D957-406A-8AE4-3781CA8CDA77");
+        }
+
+        public PFS(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+        {
+            Name = "Professional File System";
+            PluginUUID = new Guid("68DE769E-D957-406A-8AE4-3781CA8CDA77");
+        }
+
+        /// <summary>
+        /// Boot block, first 2 sectors
+        /// </summary>
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct BootBlock
+        {
+            /// <summary>
+            /// "PFS\1" disk type
+            /// </summary>
+            public uint diskType;
+            /// <summary>
+            /// Boot code, til completion
+            /// </summary>
+            public byte[] bootCode;
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct RootBlock
+        {
+            /// <summary>
+            /// Disk type
+            /// </summary>
+            public uint diskType;
+            /// <summary>
+            /// Options
+            /// </summary>
+            public uint options;
+            /// <summary>
+            /// Current datestamp
+            /// </summary>
+            public uint datestamp;
+            /// <summary>
+            /// Volume creation day
+            /// </summary>
+            public ushort creationday;
+            /// <summary>
+            /// Volume creation minute
+            /// </summary>
+            public ushort creationminute;
+            /// <summary>
+            /// Volume creation tick
+            /// </summary>
+            public ushort creationtick;
+            /// <summary>
+            /// AmigaDOS protection bits
+            /// </summary>
+            public ushort protection;
+            /// <summary>
+            /// Volume label (Pascal string)
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public byte[] diskname;
+            /// <summary>
+            /// Last reserved block
+            /// </summary>
+            public uint lastreserved;
+            /// <summary>
+            /// First reserved block
+            /// </summary>
+            public uint firstreserved;
+            /// <summary>
+            /// Free reserved blocks
+            /// </summary>
+            public uint reservedfree;
+            /// <summary>
+            /// Size of reserved blocks in bytes
+            /// </summary>
+            public ushort reservedblocksize;
+            /// <summary>
+            /// Blocks in rootblock, including bitmap
+            /// </summary>
+            public ushort rootblockclusters;
+            /// <summary>
+            /// Free blocks
+            /// </summary>
+            public uint blocksfree;
+            /// <summary>
+            /// Blocks that must be always free
+            /// </summary>
+            public uint alwaysfree;
+            /// <summary>
+            /// Current bitmapfield number for allocation
+            /// </summary>
+            public uint rovingPointer;
+            /// <summary>
+            /// Pointer to deldir
+            /// </summary>
+            public uint delDirPtr;
+            /// <summary>
+            /// Disk size in sectors
+            /// </summary>
+            public uint diskSize;
+            /// <summary>
+            /// Rootblock extension
+            /// </summary>
+            public uint extension;
+            /// <summary>
+            /// Unused
+            /// </summary>
+            public uint unused;
+        }
+
+        /// <summary>
+        /// Identifier for AFS (PFS v1)
+        /// </summary>
+        const uint AFS_DISK = 0x41465301;
+        /// <summary>
+        /// Identifier for PFS v2
+        /// </summary>
+        const uint PFS2_DISK = 0x50465302;
+        /// <summary>
+        /// Identifier for PFS v3
+        /// </summary>
+        const uint PFS_DISK = 0x50465301;
+        /// <summary>
+        /// Identifier for multi-user AFS
+        /// </summary>
+        const uint MUAF_DISK = 0x6D754146;
+        /// <summary>
+        /// Identifier for multi-user PFS
+        /// </summary>
+        const uint MUPFS_DISK = 0x6D755046;
+
+        public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
+        {
+            if(partitionStart >= partitionEnd)
+                return false;
+
+            BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
+
+            byte[] sector = imagePlugin.ReadSector(2 + partitionStart);
+
+            uint magic = BigEndianBitConverter.ToUInt32(sector, 0x00);
+
+            return magic == AFS_DISK || magic == PFS2_DISK || magic == PFS_DISK || magic == MUAF_DISK || magic == MUPFS_DISK;
+        }
+
+        public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
+        {
+            byte[] RootBlockSector = imagePlugin.ReadSector(2 + partitionStart);
+            RootBlock rootBlock = new RootBlock();
+            rootBlock = BigEndianMarshal.ByteArrayToStructureBigEndian<RootBlock>(RootBlockSector);
+
+            StringBuilder sbInformation = new StringBuilder();
+            xmlFSType = new Schemas.FileSystemType();
+
+            switch(rootBlock.diskType)
+            {
+                case AFS_DISK:
+                case MUAF_DISK:
+                    sbInformation.Append("Professional File System v1");
+                    xmlFSType.Type = "PFS v1";
+                    break;
+                case PFS2_DISK:
+                    sbInformation.Append("Professional File System v2");
+                    xmlFSType.Type = "PFS v2";
+                    break;
+                case PFS_DISK:
+                case MUPFS_DISK:
+                    sbInformation.Append("Professional File System v3");
+                    xmlFSType.Type = "PFS v3";
+                    break;
+            }
+
+            if(rootBlock.diskType == MUAF_DISK || rootBlock.diskType == MUPFS_DISK)
+                sbInformation.Append(", with multi-user support");
+
+            sbInformation.AppendLine();
+
+            sbInformation.AppendFormat("Volume name: {0}", StringHandlers.PascalToString(rootBlock.diskname)).AppendLine();
+            sbInformation.AppendFormat("Volume has {0} free sectors of {1}", rootBlock.blocksfree, rootBlock.diskSize).AppendLine();
+            sbInformation.AppendFormat("Volme created on {0}", DateHandlers.AmigaToDateTime(rootBlock.creationday, rootBlock.creationminute, rootBlock.creationtick)).AppendLine();
+            if(rootBlock.extension > 0)
+                sbInformation.AppendFormat("Root block extension resides at block {0}", rootBlock.extension).AppendLine();
+
+            information = sbInformation.ToString();
+
+            xmlFSType.CreationDate = DateHandlers.AmigaToDateTime(rootBlock.creationday, rootBlock.creationminute, rootBlock.creationtick);
+            xmlFSType.CreationDateSpecified = true;
+            xmlFSType.FreeClusters = rootBlock.blocksfree;
+            xmlFSType.FreeClustersSpecified = true;
+            xmlFSType.Clusters = rootBlock.diskSize / imagePlugin.GetSectorSize();
+            xmlFSType.ClusterSize = (int)imagePlugin.GetSectorSize();
+        }
+
+        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;
+        }
+    }
+}

DiscImageChef.Partitions/RDB.cs

@@ -113,6 +113,10 @@ namespace DiscImageChef.PartPlugins
         /// </summary>
         const uint TypeIDPFS = 0x50465301;
         /// <summary>
+        /// Type ID for ProfessionalFileSystem, "PFS\2"
+        /// </summary>
+        const uint TypeIDPFS2 = 0x50465302;
+        /// <summary>
         /// Type ID for ProfessionalFileSystem, "muAF"
         /// </summary>
         const uint TypeIDPFSm = 0x6D754146;
@@ -1379,6 +1383,7 @@ namespace DiscImageChef.PartPlugins
                 case TypeIDAMIXReserved:
                     return "Amiga UNIX Reserved partition (swap)";
                 case TypeIDPFS:
+                case TypeIDPFS2:
                 case TypeIDPFSm:
                 case TypeIDAFS:
                     return "ProfessionalFileSystem";

README.md

@@ -131,6 +131,7 @@ Supported file systems for identification and information only
 * NILFS2
 * Reiser file systems
 * SGI XFS
+* Professional File System
 
 Supported checksums
 ===================

TODO

@@ -10,7 +10,6 @@
 
 Filesystem plugins:
 --- Add support for SFS filesystem
---- Add support for PFS3 filesystem
 --- Add support for Apple DOS filesystems
 --- Add support for CBM filesystem
 --- Add support for ZFS