2022-12-07 13:07:31 +00:00
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// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Structs.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : SolarOS filesystem plugin.
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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 © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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using System.Diagnostics.CodeAnalysis;
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namespace Aaru.Filesystems;
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// Based on FAT's BPB, cannot find a FAT or directory
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/// <inheritdoc />
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/// <summary>Implements detection of the Solar OS filesystem</summary>
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public sealed partial class SolarFS
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{
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2023-10-03 23:22:08 +01:00
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#region Nested type: BiosParameterBlock
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2022-12-07 13:07:31 +00:00
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[SuppressMessage("ReSharper", "InconsistentNaming")]
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struct BiosParameterBlock
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{
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/// <summary>0x00, x86 jump (3 bytes), jumps to 0x60</summary>
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public byte[] x86_jump;
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/// <summary>0x03, 8 bytes, "SOLAR_OS"</summary>
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public string OEMName;
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/// <summary>0x0B, Bytes per sector</summary>
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public ushort bps;
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/// <summary>0x0D, unknown, 0x01</summary>
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public byte unk1;
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/// <summary>0x0E, unknown, 0x0201</summary>
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public ushort unk2;
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/// <summary>0x10, Number of entries on root directory ? (no root directory found)</summary>
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public ushort root_ent;
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/// <summary>0x12, Sectors in volume</summary>
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public ushort sectors;
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/// <summary>0x14, Media descriptor</summary>
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public byte media;
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/// <summary>0x15, Sectors per FAT ? (no FAT found)</summary>
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public ushort spfat;
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/// <summary>0x17, Sectors per track</summary>
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public ushort sptrk;
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/// <summary>0x19, Heads</summary>
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public ushort heads;
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/// <summary>0x1B, unknown, 10 bytes, zero-filled</summary>
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public byte[] unk3;
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/// <summary>0x25, 0x29</summary>
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public byte signature;
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/// <summary>0x26, unknown, zero-filled</summary>
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public uint unk4;
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/// <summary>0x2A, 11 bytes, volume name, space-padded</summary>
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public string vol_name;
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/// <summary>0x35, 8 bytes, "SOL_FS "</summary>
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public string fs_type;
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}
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2023-10-03 23:22:08 +01:00
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#endregion
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2022-12-07 13:07:31 +00:00
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}
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