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https://github.com/aaru-dps/Aaru.git
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119 lines
4.2 KiB
C#
119 lines
4.2 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 : Linux extended 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 © 2011-2026 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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// Information from the Linux kernel
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/// <inheritdoc />
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// ReSharper disable once InconsistentNaming
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public sealed partial class extFS
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{
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#region Nested type: SuperBlock
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/// <summary>ext superblock</summary>
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#pragma warning disable CS0649
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[SuppressMessage("ReSharper", "InconsistentNaming")]
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct ext_super_block
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{
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/// <summary>0x000, inodes on volume</summary>
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public uint s_ninodes;
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/// <summary>0x004, zones on volume</summary>
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public uint s_nzones;
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/// <summary>0x008, first free block</summary>
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public uint s_firstfreeblock;
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/// <summary>0x00C, free blocks count</summary>
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public uint s_freeblockscount;
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/// <summary>0x010, first free inode</summary>
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public uint s_firstfreeinode;
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/// <summary>0x014, free inodes count</summary>
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public uint s_freeinodescount;
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/// <summary>0x018, first data zone</summary>
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public uint s_firstdatazone;
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/// <summary>0x01C, log zone size</summary>
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public uint s_log_zone_size;
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/// <summary>0x020, max zone size</summary>
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public uint s_max_size;
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/// <summary>0x024, reserved</summary>
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public uint s_reserved1;
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/// <summary>0x028, reserved</summary>
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public uint s_reserved2;
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/// <summary>0x02C, reserved</summary>
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public uint s_reserved3;
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/// <summary>0x030, reserved</summary>
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public uint s_reserved4;
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/// <summary>0x034, reserved</summary>
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public uint s_reserved5;
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/// <summary>0x038, 0x137D (little endian)</summary>
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public ushort s_magic;
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}
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#pragma warning restore CS0649
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#endregion
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct ext_inode {
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public ushort i_mode;
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public ushort i_uid;
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public uint i_size;
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public uint i_time;
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public ushort i_gid;
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public ushort i_nlinks;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
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public uint[] i_zone;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct ext_free_inode {
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public uint count;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 14)]
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public uint[] free;
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public uint next;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct ext_free_block {
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public uint count;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 254)]
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public uint[] free;
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public uint next;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct ext_dir_entry {
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public uint inode;
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public ushort rec_len;
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public ushort name_len;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = EXT_NAME_LEN)]
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public byte[] name;
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}
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} |