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64 lines
2.6 KiB
C#
64 lines
2.6 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 QEMU Copy-On-Write v2 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.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 Qcow2
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{
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/// <summary>Magic number: 'Q', 'F', 'I', 0xFB</summary>
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const uint QCOW_MAGIC = 0x514649FB;
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const uint QCOW_VERSION2 = 2;
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const uint QCOW_VERSION3 = 3;
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const uint QCOW_ENCRYPTION_NONE = 0;
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const uint QCOW_ENCRYPTION_AES = 1;
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const ulong QCOW_FEATURE_DIRTY = 0x01;
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const ulong QCOW_FEATURE_CORRUPT = 0x02;
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const ulong QCOW_FEATURE_MASK = 0xFFFFFFFFFFFFFFFC;
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const ulong QCOW_COMPAT_FEATURE_LAZY_REFCOUNTS = 0x01;
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const ulong QCOW_AUTO_CLEAR_FEATURE_BITMAP = 0x01;
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const ulong QCOW_FLAGS_MASK = 0x3FFFFFFFFFFFFFFF;
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const ulong QCOW_COPIED = 0x8000000000000000;
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const ulong QCOW_COMPRESSED = 0x4000000000000000;
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const ulong QCOW_HEADER_EXTENSION_BACKING_FILE = 0xE2792ACA;
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const ulong QCOW_HEADER_EXTENSION_FEATURE_TABLE = 0x6803F857;
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const ulong QCOW_HEADER_EXTENSION_BITMAPS = 0x23852875;
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const int MAX_CACHE_SIZE = 16777216;
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const int MAX_CACHED_SECTORS = MAX_CACHE_SIZE / 512;
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} |