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91 lines
4.2 KiB
C#
91 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 : Constants.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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// Contains constants for Microsoft Hyper-V 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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// ----------------------------------------------------------------------------c
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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.Diagnostics.CodeAnalysis;
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namespace Aaru.Images;
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[SuppressMessage("ReSharper", "UnusedMember.Local")]
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public sealed partial class Vhdx
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{
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const ulong VHDX_SIGNATURE = 0x656C696678646876;
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const uint VHDX_HEADER_SIG = 0x64616568;
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const uint VHDX_REGION_SIG = 0x69676572;
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const ulong VHDX_METADATA_SIG = 0x617461646174656D;
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const string PARENT_LINKAGE_KEY = "parent_linkage";
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const string PARENT_LINKAGE2_KEY = "parent_linkage2";
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const string RELATIVE_PATH_KEY = "relative_path";
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const string VOLUME_PATH_KEY = "volume_path";
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const string ABSOLUTE_WIN32_PATH_KEY = "absolute_win32_path";
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const uint REGION_FLAGS_REQUIRED = 0x01;
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const uint METADATA_FLAGS_USER = 0x01;
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const uint METADATA_FLAGS_VIRTUAL = 0x02;
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const uint METADATA_FLAGS_REQUIRED = 0x04;
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const uint FILE_FLAGS_LEAVE_ALLOCATED = 0x01;
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const uint FILE_FLAGS_HAS_PARENT = 0x02;
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/// <summary>Block has never been stored on this image, check parent</summary>
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const ulong PAYLOAD_BLOCK_NOT_PRESENT = 0x00;
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/// <summary>Block was stored on this image and is removed, return whatever data you wish</summary>
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const ulong PAYLOAD_BLOCK_UNDEFINED = 0x01;
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/// <summary>Block is filled with zeroes</summary>
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const ulong PAYLOAD_BLOCK_ZERO = 0x02;
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/// <summary>All sectors in this block were UNMAPed/TRIMed, return zeroes</summary>
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const ulong PAYLOAD_BLOCK_UNMAPPER = 0x03;
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/// <summary>Block is present on this image</summary>
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const ulong PAYLOAD_BLOCK_FULLY_PRESENT = 0x06;
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/// <summary>Block is present on image but there may be sectors present on parent image</summary>
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const ulong PAYLOAD_BLOCK_PARTIALLY_PRESENT = 0x07;
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const ulong SECTOR_BITMAP_NOT_PRESENT = 0x00;
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const ulong SECTOR_BITMAP_PRESENT = 0x06;
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const ulong BAT_FILE_OFFSET_MASK = 0xFFFFFFFFFFFC0000;
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const ulong BAT_FLAGS_MASK = 0x7;
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const ulong BAT_RESERVED_MASK = 0x3FFF8;
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const int MAX_CACHE_SIZE = 16777216;
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readonly Guid _batGuid = new("2DC27766-F623-4200-9D64-115E9BFD4A08");
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readonly Guid _fileParametersGuid = new("CAA16737-FA36-4D43-B3B6-33F0AA44E76B");
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readonly Guid _logicalSectorSizeGuid = new("8141BF1D-A96F-4709-BA47-F233A8FAAB5F");
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readonly Guid _metadataGuid = new("8B7CA206-4790-4B9A-B8FE-575F050F886E");
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readonly Guid _page83DataGuid = new("BECA12AB-B2E6-4523-93EF-C309E000C746");
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readonly Guid _parentLocatorGuid = new("A8D35F2D-B30B-454D-ABF7-D3D84834AB0C");
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readonly Guid _parentTypeVhdxGuid = new("B04AEFB7-D19E-4A81-B789-25B8E9445913");
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readonly Guid _physicalSectorSizeGuid = new("CDA348C7-445D-4471-9CC9-E9885251C556");
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readonly Guid _virtualDiskSizeGuid = new("2FA54224-CD1B-4876-B211-5DBED83BF4B8");
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} |