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Refactor image classes and split them to smaller files.
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345
DiscImageChef.DiscImages/RsIde/Write.cs
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345
DiscImageChef.DiscImages/RsIde/Write.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 : Write.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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// Writes RS-IDE 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.Linq;
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using System.Runtime.InteropServices;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.CommonTypes.Enums;
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using DiscImageChef.CommonTypes.Structs;
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using Schemas;
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using Version = DiscImageChef.CommonTypes.Interop.Version;
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namespace DiscImageChef.DiscImages
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{
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public partial class RsIde
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{
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint sectorSize)
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{
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if(sectorSize != 256 && sectorSize != 512)
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{
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ErrorMessage = "Unsupported sector size";
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return false;
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}
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if(sectors > 63 * 16 * 1024)
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{
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ErrorMessage = "Too many sectors";
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return false;
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}
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if(!SupportedMediaTypes.Contains(mediaType))
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{
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ErrorMessage = $"Unsupport media format {mediaType}";
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return false;
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}
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imageInfo = new ImageInfo {MediaType = mediaType, SectorSize = sectorSize, Sectors = sectors};
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try { writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None); }
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catch(IOException e)
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{
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ErrorMessage = $"Could not create new image file, exception {e.Message}";
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return false;
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}
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IsWriting = true;
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ErrorMessage = null;
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return true;
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}
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public bool WriteMediaTag(byte[] data, MediaTagType tag)
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{
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if(tag != MediaTagType.ATA_IDENTIFY)
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{
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ErrorMessage = $"Unsupported media tag {tag}.";
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return false;
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}
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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identify = new byte[106];
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Array.Copy(data, 0, identify, 0, 106);
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return true;
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}
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public bool WriteSector(byte[] data, ulong sectorAddress)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length != imageInfo.SectorSize)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress >= imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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writingStream
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.Seek((long)((ulong)Marshal.SizeOf(typeof(RsIdeHeader)) + sectorAddress * imageInfo.SectorSize),
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SeekOrigin.Begin);
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writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length % imageInfo.SectorSize != 0)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress + length > imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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writingStream
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.Seek((long)((ulong)Marshal.SizeOf(typeof(RsIdeHeader)) + sectorAddress * imageInfo.SectorSize),
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SeekOrigin.Begin);
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writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectorLong(byte[] data, ulong sectorAddress)
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{
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ErrorMessage = "Writing sectors with tags is not supported.";
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return false;
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}
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public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
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{
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ErrorMessage = "Writing sectors with tags is not supported.";
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return false;
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}
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public bool SetTracks(List<Track> tracks)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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public bool Close()
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{
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if(!IsWriting)
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{
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ErrorMessage = "Image is not opened for writing";
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return false;
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}
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if(imageInfo.Cylinders == 0)
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{
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imageInfo.Cylinders = (uint)(imageInfo.Sectors / 16 / 63);
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imageInfo.Heads = 16;
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imageInfo.SectorsPerTrack = 63;
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while(imageInfo.Cylinders == 0)
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{
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imageInfo.Heads--;
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if(imageInfo.Heads == 0)
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{
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imageInfo.SectorsPerTrack--;
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imageInfo.Heads = 16;
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}
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imageInfo.Cylinders = (uint)(imageInfo.Sectors / imageInfo.Heads / imageInfo.SectorsPerTrack);
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if(imageInfo.Cylinders == 0 && imageInfo.Heads == 0 && imageInfo.SectorsPerTrack == 0) break;
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}
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}
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RsIdeHeader header = new RsIdeHeader
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{
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magic = signature,
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identify = new byte[106],
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dataOff = (ushort)Marshal.SizeOf(typeof(RsIdeHeader)),
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revision = 1,
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reserved = new byte[11]
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};
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if(imageInfo.SectorSize == 256) header.flags = RsIdeFlags.HalfSectors;
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if(identify == null)
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{
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Decoders.ATA.Identify.IdentifyDevice ataId = new Decoders.ATA.Identify.IdentifyDevice
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{
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GeneralConfiguration =
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Decoders.ATA.Identify.GeneralConfigurationBit.UltraFastIDE |
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Decoders.ATA.Identify.GeneralConfigurationBit.Fixed |
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Decoders.ATA.Identify.GeneralConfigurationBit.NotMFM |
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Decoders.ATA.Identify.GeneralConfigurationBit.SoftSector,
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Cylinders = (ushort)imageInfo.Cylinders,
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Heads = (ushort)imageInfo.Heads,
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SectorsPerTrack = (ushort)imageInfo.SectorsPerTrack,
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VendorWord47 = 0x80,
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Capabilities =
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Decoders.ATA.Identify.CapabilitiesBit.DMASupport | Decoders.ATA.Identify.CapabilitiesBit.IORDY |
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Decoders.ATA.Identify.CapabilitiesBit.LBASupport,
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ExtendedIdentify = Decoders.ATA.Identify.ExtendedIdentifyBit.Words54to58Valid,
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CurrentCylinders = (ushort)imageInfo.Cylinders,
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CurrentHeads = (ushort)imageInfo.Heads,
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CurrentSectorsPerTrack = (ushort)imageInfo.SectorsPerTrack,
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CurrentSectors = (uint)imageInfo.Sectors,
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LBASectors = (uint)imageInfo.Sectors,
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DMASupported = Decoders.ATA.Identify.TransferMode.Mode0,
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DMAActive = Decoders.ATA.Identify.TransferMode.Mode0
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};
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if(string.IsNullOrEmpty(imageInfo.DriveManufacturer)) imageInfo.DriveManufacturer = "DiscImageChef";
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if(string.IsNullOrEmpty(imageInfo.DriveModel)) imageInfo.DriveModel = "";
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if(string.IsNullOrEmpty(imageInfo.DriveFirmwareRevision)) Version.GetVersion();
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if(string.IsNullOrEmpty(imageInfo.DriveSerialNumber))
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imageInfo.DriveSerialNumber = $"{new Random().NextDouble():16X}";
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byte[] ataIdBytes = new byte[Marshal.SizeOf(ataId)];
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IntPtr ptr = Marshal.AllocHGlobal(512);
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Marshal.StructureToPtr(ataId, ptr, true);
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Marshal.Copy(ptr, ataIdBytes, 0, Marshal.SizeOf(ataId));
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Marshal.FreeHGlobal(ptr);
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Array.Copy(ScrambleAtaString(imageInfo.DriveManufacturer + " " + imageInfo.DriveModel, 40), 0,
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ataIdBytes, 27 * 2, 40);
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Array.Copy(ScrambleAtaString(imageInfo.DriveFirmwareRevision, 8), 0, ataIdBytes, 23 * 2, 8);
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Array.Copy(ScrambleAtaString(imageInfo.DriveSerialNumber, 20), 0, ataIdBytes, 10 * 2, 20);
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Array.Copy(ataIdBytes, 0, header.identify, 0, 106);
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}
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else Array.Copy(identify, 0, header.identify, 0, 106);
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byte[] hdr = new byte[Marshal.SizeOf(header)];
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IntPtr hdrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(header));
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Marshal.StructureToPtr(header, hdrPtr, true);
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Marshal.Copy(hdrPtr, hdr, 0, hdr.Length);
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Marshal.FreeHGlobal(hdrPtr);
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writingStream.Seek(0, SeekOrigin.Begin);
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writingStream.Write(hdr, 0, hdr.Length);
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writingStream.Flush();
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writingStream.Close();
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IsWriting = false;
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ErrorMessage = "";
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return true;
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}
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public bool SetMetadata(ImageInfo metadata)
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{
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imageInfo.DriveManufacturer = metadata.DriveManufacturer;
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imageInfo.DriveModel = metadata.DriveModel;
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imageInfo.DriveFirmwareRevision = metadata.DriveFirmwareRevision;
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imageInfo.DriveSerialNumber = metadata.DriveSerialNumber;
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return true;
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}
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public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack)
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{
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if(cylinders > ushort.MaxValue)
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{
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ErrorMessage = "Too many cylinders.";
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return false;
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}
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if(heads > ushort.MaxValue)
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{
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ErrorMessage = "Too many heads.";
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return false;
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}
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if(sectorsPerTrack > ushort.MaxValue)
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{
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ErrorMessage = "Too many sectors per track.";
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return false;
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}
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imageInfo.SectorsPerTrack = sectorsPerTrack;
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imageInfo.Heads = heads;
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imageInfo.Cylinders = cylinders;
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return true;
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}
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public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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public bool SetDumpHardware(List<DumpHardwareType> dumpHardware)
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{
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// Not supported
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return false;
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}
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public bool SetCicmMetadata(CICMMetadataType metadata)
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{
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// Not supported
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return false;
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}
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}
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}
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