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125 lines
4.1 KiB
C#
125 lines
4.1 KiB
C#
// /***************************************************************************
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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 : QNX4 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 © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.InteropServices;
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namespace Aaru.Filesystems;
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/// <inheritdoc />
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/// <summary>Implements detection of QNX 4 filesystem</summary>
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[SuppressMessage("ReSharper", "UnusedType.Local")]
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public sealed partial class QNX4
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{
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#region Nested type: Extent
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#pragma warning disable CS0649 // Field is never assigned to, and will always have its default value
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struct Extent
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{
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public uint Block;
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public uint Length;
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}
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#pragma warning restore CS0649 // Field is never assigned to, and will always have its default value
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#endregion
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#region Nested type: ExtentBlock
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct ExtentBlock
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{
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public readonly uint next_xblk;
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public readonly uint prev_xblk;
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public readonly byte num_xtnts;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
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public readonly byte[] spare;
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public readonly uint num_blocks;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 60)]
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public readonly Extent[] xtnts;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
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public readonly byte[] signature;
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public readonly Extent first_xtnt;
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}
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#endregion
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#region Nested type: Inode
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct Inode
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{
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
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public readonly byte[] di_fname;
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public readonly uint di_size;
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public readonly Extent di_first_xtnt;
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public readonly uint di_xblk;
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public readonly uint di_ftime;
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public readonly uint di_mtime;
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public readonly uint di_atime;
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public readonly uint di_ctime;
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public readonly ushort di_num_xtnts;
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public readonly ushort di_mode;
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public readonly ushort di_uid;
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public readonly ushort di_gid;
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public readonly ushort di_nlink;
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public readonly uint di_zero;
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public readonly byte di_type;
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public readonly byte di_status;
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}
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#endregion
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#region Nested type: LinkInfo
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct LinkInfo
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{
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 48)]
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public readonly byte[] dl_fname;
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public readonly uint dl_inode_blk;
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public readonly byte dl_inode_ndx;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]
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public readonly byte[] dl_spare;
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public readonly byte dl_status;
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}
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#endregion
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#region Nested type: Superblock
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct Superblock
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{
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public readonly Inode rootDir;
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public readonly Inode inode;
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public readonly Inode boot;
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public readonly Inode altBoot;
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}
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#endregion
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} |