mirror of
https://github.com/aaru-dps/Aaru.git
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421 lines
13 KiB
C#
421 lines
13 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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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 © 2011-2025 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 Aaru.CommonTypes;
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using Aaru.CommonTypes.AaruMetadata;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Structs;
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using Aaru.CommonTypes.Structs.Devices.ATA;
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using Aaru.Helpers;
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using Aaru.Logging;
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using Version = Aaru.CommonTypes.Interop.Version;
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namespace Aaru.Images;
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public sealed partial class RsIde
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{
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#region IWritableImage Members
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/// <inheritdoc />
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint negativeSectors, uint overflowSectors, uint sectorSize)
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{
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if(sectorSize != 256 && sectorSize != 512)
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{
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ErrorMessage = Localization.Unsupported_sector_size;
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return false;
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}
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if(negativeSectors != 0)
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{
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ErrorMessage = Localization.Negative_sectors_are_not_supported;
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return false;
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}
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if(overflowSectors != 0)
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{
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ErrorMessage = Localization.Overflow_sectors_are_not_supported;
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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 = Localization.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 = string.Format(Localization.Unsupported_media_format_0, mediaType);
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return false;
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}
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_imageInfo = new ImageInfo
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{
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MediaType = mediaType,
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SectorSize = sectorSize,
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Sectors = sectors
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};
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try
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{
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_writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None);
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}
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catch(IOException ex)
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{
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ErrorMessage = string.Format(Localization.Could_not_create_new_image_file_exception_0, ex.Message);
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AaruLogging.Exception(ex, Localization.Could_not_create_new_image_file_exception_0, ex.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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/// <inheritdoc />
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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 = string.Format(Localization.Unsupported_media_tag_0, 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 = Localization.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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/// <inheritdoc />
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public bool WriteSector(byte[] data, ulong sectorAddress, bool negative, SectorStatus sectorStatus)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(negative)
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{
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ErrorMessage = Localization.Unsupported_feature;
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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 = Localization.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 = Localization.Tried_to_write_past_image_size;
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return false;
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}
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_writingStream.Seek((long)((ulong)Marshal.SizeOf<Header>() + 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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/// <inheritdoc />
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public bool WriteSectors(byte[] data, ulong sectorAddress, bool negative, uint length, SectorStatus[] sectorStatus)
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{
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if(!IsWriting)
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{
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ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
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return false;
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}
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if(negative)
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{
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ErrorMessage = Localization.Unsupported_feature;
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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 = Localization.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 = Localization.Tried_to_write_past_image_size;
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return false;
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}
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_writingStream.Seek((long)((ulong)Marshal.SizeOf<Header>() + 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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/// <inheritdoc />
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public bool WriteSectorLong(byte[] data, ulong sectorAddress, bool negative, SectorStatus sectorStatus)
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{
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ErrorMessage = Localization.Writing_sectors_with_tags_is_not_supported;
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return false;
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}
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/// <inheritdoc />
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public bool WriteSectorsLong(byte[] data, ulong sectorAddress, bool negative, uint length,
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SectorStatus[] sectorStatus)
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{
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ErrorMessage = Localization.Writing_sectors_with_tags_is_not_supported;
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return false;
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}
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/// <inheritdoc />
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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 = Localization.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 is { Heads: 0, SectorsPerTrack: 0 }) break;
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}
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}
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var header = new Header
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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<Header>(),
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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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var ataId = new Identify.IdentifyDevice
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{
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GeneralConfiguration =
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CommonTypes.Structs.Devices.ATA.Identify.GeneralConfigurationBit.UltraFastIDE |
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CommonTypes.Structs.Devices.ATA.Identify.GeneralConfigurationBit.Fixed |
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CommonTypes.Structs.Devices.ATA.Identify.GeneralConfigurationBit.NotMFM |
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CommonTypes.Structs.Devices.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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CommonTypes.Structs.Devices.ATA.Identify.CapabilitiesBit.DMASupport |
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CommonTypes.Structs.Devices.ATA.Identify.CapabilitiesBit.IORDY |
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CommonTypes.Structs.Devices.ATA.Identify.CapabilitiesBit.LBASupport,
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ExtendedIdentify = CommonTypes.Structs.Devices.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 = CommonTypes.Structs.Devices.ATA.Identify.TransferMode.Mode0,
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DMAActive = CommonTypes.Structs.Devices.ATA.Identify.TransferMode.Mode0
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};
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if(string.IsNullOrEmpty(_imageInfo.DriveManufacturer)) _imageInfo.DriveManufacturer = "Aaru";
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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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var ataIdBytes = new byte[Marshal.SizeOf<Identify.IdentifyDevice>()];
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nint ptr = System.Runtime.InteropServices.Marshal.AllocHGlobal(512);
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System.Runtime.InteropServices.Marshal.StructureToPtr(ataId, ptr, true);
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System.Runtime.InteropServices.Marshal.Copy(ptr, ataIdBytes, 0, Marshal.SizeOf<Identify.IdentifyDevice>());
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System.Runtime.InteropServices.Marshal.FreeHGlobal(ptr);
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Array.Copy(ScrambleAtaString(_imageInfo.DriveManufacturer + " " + _imageInfo.DriveModel, 40),
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0,
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ataIdBytes,
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27 * 2,
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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
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Array.Copy(_identify, 0, header.identify, 0, 106);
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var hdr = new byte[Marshal.SizeOf<Header>()];
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nint hdrPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf<Header>());
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System.Runtime.InteropServices.Marshal.StructureToPtr(header, hdrPtr, true);
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System.Runtime.InteropServices.Marshal.Copy(hdrPtr, hdr, 0, hdr.Length);
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System.Runtime.InteropServices.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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/// <inheritdoc />
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public bool SetImageInfo(ImageInfo imageInfo)
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{
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_imageInfo.DriveManufacturer = imageInfo.DriveManufacturer;
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_imageInfo.DriveModel = imageInfo.DriveModel;
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_imageInfo.DriveFirmwareRevision = imageInfo.DriveFirmwareRevision;
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_imageInfo.DriveSerialNumber = imageInfo.DriveSerialNumber;
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return true;
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}
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/// <inheritdoc />
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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 = Localization.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 = Localization.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 = Localization.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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/// <inheritdoc />
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public bool WriteSectorTag(byte[] data, ulong sectorAddress, bool negative, SectorTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool WriteSectorsTag(byte[] data, ulong sectorAddress, bool negative, uint length, SectorTagType tag)
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{
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ErrorMessage = Localization.Unsupported_feature;
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return false;
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}
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/// <inheritdoc />
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public bool SetDumpHardware(List<DumpHardware> dumpHardware) => false;
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/// <inheritdoc />
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public bool SetMetadata(Metadata metadata) => false;
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#endregion
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} |