Files
Aaru/DiscImageChef.DiscImages/QCOW2/Structs.cs

106 lines
3.7 KiB
C#

// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : Structs.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Contains structures for QEMU Copy-On-Write v2 disk images.
//
// --[ License ] --------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2018 Natalia Portillo
// ****************************************************************************/
using System.Runtime.InteropServices;
namespace DiscImageChef.DiscImages
{
public partial class Qcow2
{
/// <summary>
/// QCOW header, big-endian
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct QCow2Header
{
/// <summary>
/// <see cref="Qcow2.QCOW_MAGIC" />
/// </summary>
public uint magic;
/// <summary>
/// Must be 1
/// </summary>
public uint version;
/// <summary>
/// Offset inside file to string containing backing file
/// </summary>
public ulong backing_file_offset;
/// <summary>
/// Size of <see cref="backing_file_offset" />
/// </summary>
public uint backing_file_size;
/// <summary>
/// Cluster bits
/// </summary>
public uint cluster_bits;
/// <summary>
/// Size in bytes
/// </summary>
public ulong size;
/// <summary>
/// Encryption method
/// </summary>
public uint crypt_method;
/// <summary>
/// Size of L1 table
/// </summary>
public uint l1_size;
/// <summary>
/// Offset to L1 table
/// </summary>
public ulong l1_table_offset;
/// <summary>
/// Offset to reference count table
/// </summary>
public ulong refcount_table_offset;
/// <summary>
/// How many clusters does the refcount table span
/// </summary>
public uint refcount_table_clusters;
/// <summary>
/// Number of snapshots
/// </summary>
public uint nb_snapshots;
/// <summary>
/// Offset to QCowSnapshotHeader
/// </summary>
public ulong snapshots_offset;
// Added in version 3
public ulong features;
public ulong compat_features;
public ulong autoclear_features;
public uint refcount_order;
public uint header_length;
}
}
}