112 lines
3.3 KiB
C#
112 lines
3.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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using Duplicati.Proprietary.DiskImage.Disk;
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using Duplicati.Proprietary.DiskImage.General;
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namespace Duplicati.Proprietary.DiskImage.Partition;
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/// <summary>
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/// Represents a single partition on a disk.
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/// </summary>
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internal interface IPartition : IDisposable
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{
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/// <summary>
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/// Gets the parent partition table.
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/// </summary>
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IPartitionTable PartitionTable { get; }
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/// <summary>
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/// Gets the partition number (1-based).
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/// </summary>
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int PartitionNumber { get; }
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/// <summary>
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/// Gets the partition type identifier.
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/// </summary>
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PartitionType Type { get; }
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/// <summary>
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/// Gets the starting offset in bytes.
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/// </summary>
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long StartOffset { get; }
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/// <summary>
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/// Gets the size in bytes.
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/// </summary>
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long Size { get; }
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/// <summary>
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/// Gets the partition name (if available).
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/// </summary>
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string? Name { get; }
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/// <summary>
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/// Gets the filesystem type (if detectable).
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/// </summary>
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FileSystemType FilesystemType { get; }
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/// <summary>
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/// Gets the volume GUID (for GPT).
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/// </summary>
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Guid? VolumeGuid { get; }
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/// <summary>
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/// Creates a stream to read the raw partition data.
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/// </summary>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>Stream for reading partition data.</returns>
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Task<Stream> OpenReadAsync(CancellationToken cancellationToken);
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/// <summary>
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/// Creates a stream to write the raw partition data.
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/// </summary>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>Stream for writing partition data.</returns>
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Task<Stream> OpenWriteAsync(CancellationToken cancellationToken);
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}
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/// <summary>
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/// Partition table parsing interface.
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/// </summary>
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internal interface IPartitionTable : IDisposable
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{
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/// <summary>
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/// Gets the raw disk this table was parsed from. Null if the table was created from a byte array.
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/// </summary>
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IRawDisk? RawDisk { get; }
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/// <summary>
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/// Gets the partition table type.
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/// </summary>
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PartitionTableType TableType { get; }
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/// <summary>
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/// Enumerates all partitions on the disk.
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/// </summary>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>Async enumerable of partitions.</returns>
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IAsyncEnumerable<IPartition> EnumeratePartitions(CancellationToken cancellationToken);
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/// <summary>
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/// Gets a specific partition by number.
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/// </summary>
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/// <param name="partitionNumber">The partition number.</param>
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/// <returns>The partition, or null if not found.</returns>
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Task<IPartition?> GetPartitionAsync(int partitionNumber, CancellationToken cancellationToken);
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/// <summary>
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/// Gets the protective MBR (for GPT disks).
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/// </summary>
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Task<Stream> GetProtectiveMbrAsync(CancellationToken cancellationToken);
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/// <summary>
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/// Gets the raw partition table data for backup/restore purposes.
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/// For MBR: returns the MBR sector (512 bytes).
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/// For GPT: returns the protective MBR + GPT header + partition entries.
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/// </summary>
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Task<Stream> GetPartitionTableDataAsync(CancellationToken cancellationToken);
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}
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