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* DiscImageChef.Filesystems/Acorn.cs:
* DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj: Added support for Acorn ADFS. * DiscImageChef.Partitions/Sun.cs: * DiscImageChef.Partitions/DiscImageChef.Partitions.csproj: Added support for Sun disklabel. * DiscImageChef.Filesystems/FFS.cs: Correct FFS information. * DiscImageChef/Commands/DumpMedia.cs: Correct physical/logical block size in sidecar. * TODO: * README.md: Added support for Sun disklabel. Added support for Acorn ADFS.
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DiscImageChef.Filesystems/Acorn.cs
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219
DiscImageChef.Filesystems/Acorn.cs
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// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : Acorn.cs
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// Version : 1.0
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// Author(s) : Natalia Portillo
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//
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// Component : Component
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//
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// Revision : $Revision$
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// Last change by : $Author$
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// Date : $Date$
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Description
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright (C) 2011-2015 Claunia.com
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// ****************************************************************************/
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// //$Id$
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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using DiscImageChef.Console;
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namespace DiscImageChef.Plugins
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{
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class AcornADFS : Plugin
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{
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const ulong ADFS_SB_POS = 0xC00;
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public AcornADFS()
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{
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Name = "Acorn Advanced Disc Filing System";
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PluginUUID = new Guid("BAFC1E50-9C64-4CD3-8400-80628CC27AFA");
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}
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[StructLayout(LayoutKind.Sequential)]
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struct DiscRecord
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{
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x1C0)]
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public byte[] spare;
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public byte log2secsize;
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public byte spt;
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public byte heads;
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public byte density;
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public byte idlen;
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public byte log2bpmb;
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public byte skew;
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public byte bootoption;
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public byte lowsector;
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public byte nzones;
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public short zone_spare;
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public int root;
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public uint disc_size;
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public short disc_id;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]
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public byte[] disc_name;
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public int disc_type;
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public uint disc_size_high;
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public byte flags;
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public byte nzones_high;
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public int format_version;
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public int root_size;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
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public byte[] reserved;
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}
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public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
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{
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if (partitionStart >= imagePlugin.GetSectors())
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return false;
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ulong sbSector;
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if (imagePlugin.GetSectorSize() > ADFS_SB_POS)
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sbSector = 0;
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else
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sbSector = ADFS_SB_POS / imagePlugin.GetSectorSize();
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byte[] sector = imagePlugin.ReadSector(sbSector + partitionStart);
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GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
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DiscRecord drSb = (DiscRecord)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(DiscRecord));
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handle.Free();
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if (drSb.log2secsize < 8 || drSb.log2secsize > 10)
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return false;
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if (drSb.idlen < (drSb.log2secsize + 3) || drSb.idlen > 19)
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return false;
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if ((drSb.disc_size_high >> drSb.log2secsize) != 0)
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return false;
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if (!ArrayHelpers.ArrayIsNullOrEmpty(drSb.reserved))
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return false;
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ulong bytes = drSb.disc_size_high;
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bytes *= 0x100000000;
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bytes += drSb.disc_size;
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if (bytes > (imagePlugin.GetSectors() * (ulong)imagePlugin.GetSectorSize()))
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return false;
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return true;
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}
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public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
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{
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StringBuilder sbInformation = new StringBuilder();
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xmlFSType = new Schemas.FileSystemType();
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information = "";
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ulong sbSector;
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if (imagePlugin.GetSectorSize() > ADFS_SB_POS)
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sbSector = 0;
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else
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sbSector = ADFS_SB_POS / imagePlugin.GetSectorSize();
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byte[] sector = imagePlugin.ReadSector(sbSector + partitionStart);
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GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
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DiscRecord drSb = (DiscRecord)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(DiscRecord));
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handle.Free();
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.log2secsize = {0}", drSb.log2secsize);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.spt = {0}", drSb.spt);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.heads = {0}", drSb.heads);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.density = {0}", drSb.density);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.idlen = {0}", drSb.idlen);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.log2bpmb = {0}", drSb.log2bpmb);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.skew = {0}", drSb.skew);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.bootoption = {0}", drSb.bootoption);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.lowsector = {0}", drSb.lowsector);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.nzones = {0}", drSb.nzones);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.zone_spare = {0}", drSb.zone_spare);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.root = {0}", drSb.root);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.disc_size = {0}", drSb.disc_size);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.disc_id = {0}", drSb.disc_id);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.disc_name = {0}", StringHandlers.CToString(drSb.disc_name));
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.disc_type = {0}", drSb.disc_type);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.disc_size_high = {0}", drSb.disc_size_high);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.flags = {0}", drSb.flags);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.nzones_high = {0}", drSb.nzones_high);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.format_version = {0}", drSb.format_version);
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DicConsole.DebugWriteLine("ADFS Plugin", "drSb.root_size = {0}", drSb.root_size);
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if (drSb.log2secsize < 8 || drSb.log2secsize > 10)
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return;
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if (drSb.idlen < (drSb.log2secsize + 3) || drSb.idlen > 19)
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return;
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if ((drSb.disc_size_high >> drSb.log2secsize) != 0)
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return;
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if (!ArrayHelpers.ArrayIsNullOrEmpty(drSb.reserved))
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return;
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ulong bytes = drSb.disc_size_high;
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bytes *= 0x100000000;
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bytes += drSb.disc_size;
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ulong zones = drSb.nzones_high;
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zones *= 0x100000000;
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zones += drSb.nzones;
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if (bytes > (imagePlugin.GetSectors() * (ulong)imagePlugin.GetSectorSize()))
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return;
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string discname = StringHandlers.CToString(drSb.disc_name);
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sbInformation.AppendLine("Acorn Advanced Disc Filing System");
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sbInformation.AppendLine();
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sbInformation.AppendFormat("Version {0}", drSb.format_version).AppendLine();
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sbInformation.AppendFormat("{0} bytes per sector", 1 << drSb.log2secsize).AppendLine();
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sbInformation.AppendFormat("{0} sectors per track", drSb.spt).AppendLine();
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sbInformation.AppendFormat("{0} heads", drSb.heads).AppendLine();
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sbInformation.AppendFormat("Density code: {0}", drSb.density).AppendLine();
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sbInformation.AppendFormat("Skew: {0}", drSb.skew).AppendLine();
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sbInformation.AppendFormat("Boot option: {0}", drSb.bootoption).AppendLine();
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sbInformation.AppendFormat("Root starts at byte {0}", drSb.root).AppendLine();
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sbInformation.AppendFormat("Root is {0} bytes long", drSb.root_size).AppendLine();
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sbInformation.AppendFormat("Volume has {0} bytes in {1} zones", bytes, zones).AppendLine();
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sbInformation.AppendFormat("Volume flags: 0x{0:X4}", drSb.flags).AppendLine();
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sbInformation.AppendFormat("Volume ID: {0}", drSb.disc_id).AppendLine();
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sbInformation.AppendFormat("Volume name: {0}", discname).AppendLine();
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information = sbInformation.ToString();
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xmlFSType = new Schemas.FileSystemType();
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xmlFSType.Bootable |= drSb.bootoption != 0; // Or not?
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xmlFSType.Clusters = (long)(bytes / (ulong)(1 << drSb.log2secsize));
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xmlFSType.ClusterSize = (1 << drSb.log2secsize);
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xmlFSType.Type = "Acorn Advanced Disc Filing System";
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xmlFSType.VolumeName = discname;
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xmlFSType.VolumeSerial = string.Format("{0}", drSb.disc_id);
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}
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}
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}
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