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293 lines
12 KiB
C#
293 lines
12 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : Anex86.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Manages Anex86 disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2018 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Runtime.InteropServices;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.Console;
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using DiscImageChef.Filters;
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namespace DiscImageChef.DiscImages
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{
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public class Anex86 : IMediaImage
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{
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IFilter anexImageFilter;
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Anex86Header fdihdr;
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ImageInfo imageInfo;
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public Anex86()
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{
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imageInfo = new ImageInfo
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{
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ReadableSectorTags = new List<SectorTagType>(),
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ReadableMediaTags = new List<MediaTagType>(),
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HasPartitions = false,
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HasSessions = false,
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Version = null,
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Application = null,
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ApplicationVersion = null,
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Creator = null,
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Comments = null,
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MediaManufacturer = null,
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MediaModel = null,
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MediaSerialNumber = null,
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MediaBarcode = null,
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MediaPartNumber = null,
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MediaSequence = 0,
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LastMediaSequence = 0,
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DriveManufacturer = null,
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DriveModel = null,
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DriveSerialNumber = null,
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DriveFirmwareRevision = null
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};
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}
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public ImageInfo Info => imageInfo;
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public string Name => "Anex86 Disk Image";
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public Guid Id => new Guid("0410003E-6E7B-40E6-9328-BA5651ADF6B7");
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public string Format => "Anex86 disk image";
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public List<Partition> Partitions =>
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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public List<Track> Tracks =>
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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public List<Session> Sessions =>
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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public bool Identify(IFilter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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fdihdr = new Anex86Header();
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if(stream.Length < Marshal.SizeOf(fdihdr)) return false;
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byte[] hdrB = new byte[Marshal.SizeOf(fdihdr)];
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stream.Read(hdrB, 0, hdrB.Length);
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GCHandle handle = GCHandle.Alloc(hdrB, GCHandleType.Pinned);
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fdihdr = (Anex86Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(Anex86Header));
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handle.Free();
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.unknown = {0}", fdihdr.unknown);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.hddtype = {0}", fdihdr.hddtype);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.hdrSize = {0}", fdihdr.hdrSize);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.dskSize = {0}", fdihdr.dskSize);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.bps = {0}", fdihdr.bps);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.spt = {0}", fdihdr.spt);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.heads = {0}", fdihdr.heads);
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DicConsole.DebugWriteLine("Anex86 plugin", "fdihdr.cylinders = {0}", fdihdr.cylinders);
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return stream.Length == fdihdr.hdrSize + fdihdr.dskSize &&
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fdihdr.dskSize == fdihdr.bps * fdihdr.spt * fdihdr.heads * fdihdr.cylinders;
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}
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public bool Open(IFilter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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stream.Seek(0, SeekOrigin.Begin);
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fdihdr = new Anex86Header();
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if(stream.Length < Marshal.SizeOf(fdihdr)) return false;
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byte[] hdrB = new byte[Marshal.SizeOf(fdihdr)];
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stream.Read(hdrB, 0, hdrB.Length);
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GCHandle handle = GCHandle.Alloc(hdrB, GCHandleType.Pinned);
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fdihdr = (Anex86Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(Anex86Header));
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handle.Free();
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imageInfo.MediaType =
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Geometry.GetMediaType(((ushort)fdihdr.cylinders, (byte)fdihdr.heads, (ushort)fdihdr.spt,
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(uint)fdihdr.bps, MediaEncoding.MFM, false));
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if(imageInfo.MediaType == MediaType.Unknown) imageInfo.MediaType = MediaType.GENERIC_HDD;
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DicConsole.DebugWriteLine("Anex86 plugin", "MediaType: {0}", imageInfo.MediaType);
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imageInfo.ImageSize = (ulong)fdihdr.dskSize;
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imageInfo.CreationTime = imageFilter.GetCreationTime();
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imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
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imageInfo.MediaTitle = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
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imageInfo.Sectors = (ulong)(fdihdr.cylinders * fdihdr.heads * fdihdr.spt);
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imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
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imageInfo.SectorSize = (uint)fdihdr.bps;
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imageInfo.Cylinders = (uint)fdihdr.cylinders;
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imageInfo.Heads = (uint)fdihdr.heads;
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imageInfo.SectorsPerTrack = (uint)fdihdr.spt;
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anexImageFilter = imageFilter;
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return true;
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}
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public byte[] ReadSector(ulong sectorAddress)
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{
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return ReadSectors(sectorAddress, 1);
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}
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public byte[] ReadSectors(ulong sectorAddress, uint length)
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{
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if(sectorAddress > imageInfo.Sectors - 1)
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throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
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if(sectorAddress + length > imageInfo.Sectors)
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throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
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byte[] buffer = new byte[length * imageInfo.SectorSize];
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Stream stream = anexImageFilter.GetDataForkStream();
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stream.Seek((long)((ulong)fdihdr.hdrSize + sectorAddress * imageInfo.SectorSize), SeekOrigin.Begin);
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stream.Read(buffer, 0, (int)(length * imageInfo.SectorSize));
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return buffer;
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}
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public byte[] ReadDiskTag(MediaTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorTag(ulong sectorAddress, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSector(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorTag(ulong sectorAddress, uint track, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsTag(ulong sectorAddress, uint length, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectors(ulong sectorAddress, uint length, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsTag(ulong sectorAddress, uint length, uint track, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorLong(ulong sectorAddress)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorLong(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsLong(ulong sectorAddress, uint length)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsLong(ulong sectorAddress, uint length, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public List<Track> GetSessionTracks(Session session)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public List<Track> GetSessionTracks(ushort session)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public bool? VerifySector(ulong sectorAddress)
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{
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return null;
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}
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public bool? VerifySector(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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{
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failingLbas = new List<ulong>();
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unknownLbas = new List<ulong>();
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for(ulong i = 0; i < imageInfo.Sectors; i++) unknownLbas.Add(i);
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return null;
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}
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public bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public bool? VerifyMediaImage()
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{
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return null;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct Anex86Header
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{
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public int unknown;
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public int hddtype;
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public int hdrSize;
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public int dskSize;
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public int bps;
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public int spt;
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public int heads;
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public int cylinders;
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}
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}
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} |