mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
462 lines
20 KiB
C#
462 lines
20 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : GPT.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Partitioning scheme plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Manages GUID Partition Table.
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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 © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Runtime.InteropServices;
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using Aaru.CommonTypes;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.Console;
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using Marshal = Aaru.Helpers.Marshal;
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namespace Aaru.Partitions;
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/// <inheritdoc />
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/// <summary>Implements decoding of the GUID Partition Table</summary>
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[SuppressMessage("ReSharper", "UnusedMember.Local")]
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public sealed class GuidPartitionTable : IPartition
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{
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const ulong GPT_MAGIC = 0x5452415020494645;
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const uint GPT_REVISION1 = 0x00010000;
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const string MODULE_NAME = "GUID Partition Table (GPT) Plugin";
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#region IPartition Members
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/// <inheritdoc />
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public string Name => Localization.GuidPartitionTable_Name;
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/// <inheritdoc />
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public Guid Id => new("CBC9D281-C1D0-44E8-9038-4D66FD2678AB");
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/// <inheritdoc />
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public string Author => Authors.NATALIA_PORTILLO;
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/// <inheritdoc />
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public bool GetInformation(IMediaImage imagePlugin, out List<Partition> partitions, ulong sectorOffset)
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{
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partitions = new List<Partition>();
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if(sectorOffset + 2 >= imagePlugin.Info.Sectors) return false;
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ErrorNumber errno = imagePlugin.ReadSector(1 + sectorOffset, out byte[] hdrBytes);
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if(errno != ErrorNumber.NoError) return false;
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Header hdr;
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var signature = BitConverter.ToUInt64(hdrBytes, 0);
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var misaligned = false;
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.signature = 0x{0:X16}", signature);
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if(signature != GPT_MAGIC)
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{
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if(imagePlugin.Info.MetadataMediaType == MetadataMediaType.OpticalDisc)
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{
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errno = imagePlugin.ReadSector(sectorOffset, out hdrBytes);
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if(errno != ErrorNumber.NoError) return false;
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signature = BitConverter.ToUInt64(hdrBytes, 512);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.signature @ 0x200 = 0x{0:X16}", signature);
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if(signature == GPT_MAGIC)
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{
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AaruConsole.DebugWriteLine(MODULE_NAME, Localization.Found_unaligned_signature, signature);
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var real = new byte[512];
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Array.Copy(hdrBytes, 512, real, 0, 512);
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hdrBytes = real;
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misaligned = true;
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}
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else
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return false;
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}
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else
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return false;
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}
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try
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{
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hdr = Marshal.ByteArrayToStructureLittleEndian<Header>(hdrBytes);
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}
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catch
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{
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return false;
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}
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.revision = 0x{0:X8}", hdr.revision);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.headerSize = {0}", hdr.headerSize);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.headerCrc = 0x{0:X8}", hdr.headerCrc);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.reserved = 0x{0:X8}", hdr.reserved);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.myLBA = {0}", hdr.myLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.alternateLBA = {0}", hdr.alternateLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.firstUsableLBA = {0}", hdr.firstUsableLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.lastUsableLBA = {0}", hdr.lastUsableLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.diskGuid = {0}", hdr.diskGuid);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.entryLBA = {0}", hdr.entryLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.entries = {0}", hdr.entries);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.entriesSize = {0}", hdr.entriesSize);
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AaruConsole.DebugWriteLine(MODULE_NAME, "hdr.entriesCrc = 0x{0:X8}", hdr.entriesCrc);
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if(hdr.signature != GPT_MAGIC) return false;
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if(hdr.myLBA != 1 + sectorOffset) return false;
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uint divisor, modulo, sectorSize;
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if(misaligned)
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{
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divisor = 4;
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modulo = (uint)(hdr.entryLBA % divisor);
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sectorSize = 512;
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}
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else
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{
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divisor = 1;
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modulo = 0;
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sectorSize = imagePlugin.Info.SectorSize;
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}
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uint totalEntriesSectors = hdr.entries * hdr.entriesSize / imagePlugin.Info.SectorSize;
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if(hdr.entries * hdr.entriesSize % imagePlugin.Info.SectorSize > 0) totalEntriesSectors++;
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errno = imagePlugin.ReadSectors(hdr.entryLBA / divisor, totalEntriesSectors + modulo, out byte[] temp);
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if(errno != ErrorNumber.NoError) return false;
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var entriesBytes = new byte[temp.Length - modulo * 512];
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Array.Copy(temp, modulo * 512, entriesBytes, 0, entriesBytes.Length);
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List<Entry> entries = new();
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for(var i = 0; i < hdr.entries; i++)
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{
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try
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{
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var entryBytes = new byte[hdr.entriesSize];
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Array.Copy(entriesBytes, hdr.entriesSize * i, entryBytes, 0, hdr.entriesSize);
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entries.Add(Marshal.ByteArrayToStructureLittleEndian<Entry>(entryBytes));
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}
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#pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body
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catch
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{
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// ignored
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}
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#pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body
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}
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if(entries.Count == 0) return false;
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ulong pSeq = 0;
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foreach(Entry entry in entries.Where(entry => entry.partitionType != Guid.Empty &&
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entry.partitionId != Guid.Empty))
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{
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AaruConsole.DebugWriteLine(MODULE_NAME, "entry.partitionType = {0}", entry.partitionType);
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AaruConsole.DebugWriteLine(MODULE_NAME, "entry.partitionId = {0}", entry.partitionId);
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AaruConsole.DebugWriteLine(MODULE_NAME, "entry.startLBA = {0}", entry.startLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "entry.endLBA = {0}", entry.endLBA);
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AaruConsole.DebugWriteLine(MODULE_NAME, "entry.attributes = 0x{0:X16}", entry.attributes);
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AaruConsole.DebugWriteLine(MODULE_NAME, "entry.name = {0}", entry.name);
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if(entry.startLBA / divisor > imagePlugin.Info.Sectors || entry.endLBA / divisor > imagePlugin.Info.Sectors)
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return false;
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var part = new Partition
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{
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Description = $"ID: {entry.partitionId}",
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Size = (entry.endLBA - entry.startLBA + 1) * sectorSize,
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Name = entry.name,
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Length = (entry.endLBA - entry.startLBA + 1) / divisor,
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Sequence = pSeq++,
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Offset = entry.startLBA * sectorSize,
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Start = entry.startLBA / divisor,
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Type = GetGuidTypeName(entry.partitionType),
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Scheme = Name
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};
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AaruConsole.DebugWriteLine(MODULE_NAME, "part.PartitionType = {0}", part.Type);
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partitions.Add(part);
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}
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return true;
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}
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#endregion
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static string GetGuidTypeName(Guid type)
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{
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string strType = type.ToString().ToUpperInvariant();
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switch(strType)
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{
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case "024DEE41-33E7-11D3-9D69-0008C781F39F":
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return Localization.MBR_scheme;
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case "C12A7328-F81F-11D2-BA4B-00A0C93EC93B":
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return Localization.EFI_System;
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case "21686148-6449-6E6F-744E-656564454649":
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return Localization.BIOS_Boot;
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case "D3BFE2DE-3DAF-11DF-BA40-E3A556D89593":
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return Localization.Intel_Fast_Flash_iFFS;
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case "F4019732-066E-4E12-8273-346C5641494F":
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return Localization.Sony_boot;
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case "BFBFAFE7-A34F-448A-9A5B-6213EB736C22":
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return Localization.Lenovo_boot;
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case "E3C9E316-0B5C-4DB8-817D-F92DF00215AE":
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return Localization.Microsoft_Reserved_MSR;
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case "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7":
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return Localization.Microsoft_Basic_data;
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case "5808C8AA-7E8F-42E0-85D2-E1E90434CFB3":
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return Localization.Logical_Disk_Manager_LDM_metadata;
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case "AF9B60A0-1431-4F62-BC68-3311714A69AD":
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return Localization.Logical_Disk_Manager_data;
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case "DE94BBA4-06D1-4D40-A16A-BFD50179D6AC":
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return Localization.Windows_Recovery_Environment;
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case "37AFFC90-EF7D-4E96-91C3-2D7AE055B174":
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return Localization.IBM_General_Parallel_File_System_GPFS;
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case "E75CAF8F-F680-4CEE-AFA3-B001E56EFC2D":
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return Localization.Windows_Storage_Spaces;
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case "75894C1E-3AEB-11D3-B7C1-7B03A0000000":
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return Localization.HP_UX_Data;
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case "E2A1E728-32E3-11D6-A682-7B03A0000000":
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return Localization.HP_UX_Service;
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case "0FC63DAF-8483-4772-8E79-3D69D8477DE4":
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return Localization.Linux_filesystem;
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case "A19D880F-05FC-4D3B-A006-743F0F84911E":
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return Localization.Linux_RAID;
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case "44479540-F297-41B2-9AF7-D131D5F0458A":
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return Localization.Linux_Root_x86;
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case "4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709":
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return Localization.Linux_Root_x86_64;
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case "69DAD710-2CE4-4E3C-B16C-21A1D49ABED3":
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return Localization.Linux_Root_32_bit_ARM;
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case "B921B045-1DF0-41C3-AF44-4C6F280D3FAE":
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return Localization.Linux_Root_AArch64;
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case "0657FD6D-A4AB-43C4-84E5-0933C84B4F4F":
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return Localization.Linux_swap;
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case "E6D6D379-F507-44C2-A23C-238F2A3DF928":
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return Localization.Logical_Volume_Manager_LVM;
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case "933AC7E1-2EB4-4F13-B844-0E14E2AEF915":
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return Localization.Linux_home;
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case "3B8F8425-20E0-4F3B-907F-1A25A76F98E8":
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return Localization.Linux_srv;
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case "7FFEC5C9-2D00-49B7-8941-3EA10A5586B7":
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return Localization.Plain_dm_crypt;
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case "CA7D7CCB-63ED-4C53-861C-1742536059CC":
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return Localization.LUKS;
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case "8DA63339-0007-60C0-C436-083AC8230908":
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return Localization.Linux_Reserved;
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case "83BD6B9D-7F41-11DC-BE0B-001560B84F0F":
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return Localization.FreeBSD_Boot;
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case "516E7CB4-6ECF-11D6-8FF8-00022D09712B":
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return Localization.FreeBSD_Data;
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case "516E7CB5-6ECF-11D6-8FF8-00022D09712B":
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return Localization.FreeBSD_swap;
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case "516E7CB6-6ECF-11D6-8FF8-00022D09712B":
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return Localization.FreeBSD_UFS;
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case "516E7CB7-6ECF-11D6-8FF8-00022D09712B":
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return Localization.FreeBSD_UFS2;
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case "516E7CB8-6ECF-11D6-8FF8-00022D09712B":
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return Localization.FreeBSD_Vinum;
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case "516E7CBA-6ECF-11D6-8FF8-00022D09712B":
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return Localization.FreeBSD_ZFS;
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case "74BA7DD9-A689-11E1-BD04-00E081286ACF":
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return Localization.FreeBSD_nandfs;
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case "48465300-0000-11AA-AA11-00306543ECAC":
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return Localization.Apple_HFS;
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case "55465300-0000-11AA-AA11-00306543ECAC":
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return Localization.Apple_UFS;
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case "52414944-0000-11AA-AA11-00306543ECAC":
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return Localization.Apple_RAID;
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case "52414944-5F4F-11AA-AA11-00306543ECAC":
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return Localization.Apple_RAID_offline;
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case "426F6F74-0000-11AA-AA11-00306543ECAC":
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return Localization.Apple_Boot;
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case "4C616265-6C00-11AA-AA11-00306543ECAC":
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return Localization.Apple_Label;
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case "5265636F-7665-11AA-AA11-00306543ECAC":
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return Localization.Apple_TV_Recovery;
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case "53746F72-6167-11AA-AA11-00306543ECAC":
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return Localization.Apple_Core_Storage;
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case "6A82CB45-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_boot;
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case "6A85CF4D-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_Root;
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case "6A87C46F-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_Swap;
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case "6A8B642B-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_Backup;
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case "6A898CC3-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_usr_or_Apple_ZFS;
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case "6A8EF2E9-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_var;
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case "6A90BA39-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_home;
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case "6A9283A5-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_Alternate_sector;
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case "6A945A3B-1DD2-11B2-99A6-080020736631":
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case "6A9630D1-1DD2-11B2-99A6-080020736631":
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case "6A980767-1DD2-11B2-99A6-080020736631":
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case "6A96237F-1DD2-11B2-99A6-080020736631":
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case "6A8D2AC7-1DD2-11B2-99A6-080020736631":
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return Localization.Solaris_Reserved;
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case "49F48D32-B10E-11DC-B99B-0019D1879648":
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return Localization.NetBSD_Swap;
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case "49F48D5A-B10E-11DC-B99B-0019D1879648":
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return Localization.NetBSD_FFS;
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case "49F48D82-B10E-11DC-B99B-0019D1879648":
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return Localization.NetBSD_LFS;
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case "49F48DAA-B10E-11DC-B99B-0019D1879648":
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return Localization.NetBSD_RAID;
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case "2DB519C4-B10F-11DC-B99B-0019D1879648":
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return Localization.NetBSD_Concatenated;
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case "2DB519EC-B10F-11DC-B99B-0019D1879648":
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return Localization.NetBSD_Encrypted;
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case "FE3A2A5D-4F32-41A7-B725-ACCC3285A309":
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return Localization.ChromeOS_kernel;
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case "3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC":
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return Localization.ChromeOS_rootfs;
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case "2E0A753D-9E48-43B0-8337-B15192CB1B5E":
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return Localization.ChromeOS_future_use;
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case "42465331-3BA3-10F1-802A-4861696B7521":
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return Localization.Haiku_BFS;
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case "85D5E45E-237C-11E1-B4B3-E89A8F7FC3A7":
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return Localization.MidnightBSD_Boot;
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case "85D5E45A-237C-11E1-B4B3-E89A8F7FC3A7":
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return Localization.MidnightBSD_Data;
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case "85D5E45B-237C-11E1-B4B3-E89A8F7FC3A7":
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return Localization.MidnightBSD_Swap;
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case "0394EF8B-237E-11E1-B4B3-E89A8F7FC3A7":
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return Localization.MidnightBSD_UFS;
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case "85D5E45C-237C-11E1-B4B3-E89A8F7FC3A7":
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return Localization.MidnightBSD_Vinum;
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case "85D5E45D-237C-11E1-B4B3-E89A8F7FC3A7":
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return Localization.MidnightBSD_ZFS;
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case "45B0969E-9B03-4F30-B4C6-B4B80CEFF106":
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return Localization.Ceph_Journal;
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case "45B0969E-9B03-4F30-B4C6-5EC00CEFF106":
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return Localization.Ceph_dm_crypt_Encrypted_Journal;
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case "4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D":
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return Localization.Ceph_OSD;
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case "4FBD7E29-9D25-41B8-AFD0-5EC00CEFF05D":
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return Localization.Ceph_dm_crypt_OSD;
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case "89C57F98-2FE5-4DC0-89C1-F3AD0CEFF2BE":
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return Localization.Ceph_disk_in_creation;
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case "89C57F98-2FE5-4DC0-89C1-5EC00CEFF2BE":
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return Localization.Ceph_dm_crypt_disk_in_creation;
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case "824CC7A0-36A8-11E3-890A-952519AD3F61":
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return Localization.OpenBSD_Data;
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case "CEF5A9AD-73BC-4601-89F3-CDEEEEE321A1":
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return Localization.QNX_Power_safe_QNX6;
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case "C91818F9-8025-47AF-89D2-F030D7000C2C":
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return Localization.Plan_9;
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case "9D275380-40AD-11DB-BF97-000C2911D1B8":
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return Localization.VMware_vmkcore_coredump;
|
|
case "AA31E02A-400F-11DB-9590-000C2911D1B8":
|
|
return Localization.VMware_VMFS;
|
|
case "9198EFFC-31C0-11DB-8F78-000C2911D1B8":
|
|
return Localization.VMware_Reserved;
|
|
case "7412F7D5-A156-4B13-81DC-867174929325":
|
|
return Localization.ONIE_boot;
|
|
case "D4E6E2CD-4469-46F3-B5CB-1BFF57AFC149":
|
|
return Localization.ONIE_config;
|
|
case "9E1A2D38-C612-4316-AA26-8B49521E5A8B":
|
|
return Localization.PowerPC_PReP_boot;
|
|
case "0311FC50-01CA-4725-AD77-9ADBB20ACE98":
|
|
return Localization.Acronis_Secure_Zone;
|
|
case "7C3457EF-0000-11AA-AA11-00306543ECAC":
|
|
return Localization.Apple_File_System;
|
|
case "9D087404-1CA5-11DC-8817-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Label;
|
|
case "9D58FDBD-1CA5-11DC-8817-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Swap;
|
|
case "9D94CE7C-1CA5-11DC-8817-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_UFS;
|
|
case "9DD4478F-1CA5-11DC-8817-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Vinum;
|
|
case "DBD5211B-1CA5-11DC-8817-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_CCD;
|
|
case "3D48CE54-1D16-11DC-8817-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Label;
|
|
case "BD215AB2-1D16-11DC-8696-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Legacy;
|
|
case "61DC63AC-6E38-11DC-8513-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Hammer;
|
|
case "5CBB9AD1-862D-11DC-A94D-01301BB8A9F5":
|
|
return Localization.DragonflyBSD_Hammer2;
|
|
default:
|
|
return "";
|
|
}
|
|
}
|
|
|
|
#region Nested type: Entry
|
|
|
|
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
|
|
struct Entry
|
|
{
|
|
public readonly Guid partitionType;
|
|
public readonly Guid partitionId;
|
|
public readonly ulong startLBA;
|
|
public readonly ulong endLBA;
|
|
public readonly ulong attributes;
|
|
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 36)]
|
|
public readonly string name;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Nested type: Header
|
|
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
struct Header
|
|
{
|
|
public readonly ulong signature;
|
|
public readonly uint revision;
|
|
public readonly uint headerSize;
|
|
public readonly uint headerCrc;
|
|
public readonly uint reserved;
|
|
public readonly ulong myLBA;
|
|
public readonly ulong alternateLBA;
|
|
public readonly ulong firstUsableLBA;
|
|
public readonly ulong lastUsableLBA;
|
|
public readonly Guid diskGuid;
|
|
public readonly ulong entryLBA;
|
|
public readonly uint entries;
|
|
public readonly uint entriesSize;
|
|
public readonly uint entriesCrc;
|
|
}
|
|
|
|
#endregion
|
|
} |