// /*************************************************************************** // The Disc Image Chef // ---------------------------------------------------------------------------- // // Filename : GPT.cs // Author(s) : Natalia Portillo // // Component : Partitioning scheme plugins. // // --[ Description ] ---------------------------------------------------------- // // Manages GUID Partition Table. // // --[ 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 . // // ---------------------------------------------------------------------------- // Copyright © 2011-2018 Natalia Portillo // ****************************************************************************/ using System; using System.Collections.Generic; using System.Runtime.InteropServices; using DiscImageChef.Console; namespace DiscImageChef.Partitions { public class GuidPartitionTable : PartitionPlugin { const ulong GptMagic = 0x5452415020494645; const uint GptRevision1 = 0x00010000; public GuidPartitionTable() { Name = "GUID Partition Table"; PluginUuid = new Guid("CBC9D281-C1D0-44E8-9038-4D66FD2678AB"); } public override bool GetInformation(DiscImages.ImagePlugin imagePlugin, out List partitions, ulong sectorOffset) { partitions = new List(); if(sectorOffset + 2 >= imagePlugin.GetSectors()) return false; byte[] hdrBytes = imagePlugin.ReadSector(1 + sectorOffset); GptHeader hdr; ulong signature = BitConverter.ToUInt64(hdrBytes, 0); bool misaligned = false; DicConsole.DebugWriteLine("GPT Plugin", "hdr.signature = 0x{0:X16}", signature); if(signature != GptMagic) if(imagePlugin.ImageInfo.XmlMediaType == DiscImages.XmlMediaType.OpticalDisc) { hdrBytes = imagePlugin.ReadSector(sectorOffset); signature = BitConverter.ToUInt64(hdrBytes, 512); DicConsole.DebugWriteLine("GPT Plugin", "hdr.signature @ 0x200 = 0x{0:X16}", signature); if(signature == GptMagic) { DicConsole.DebugWriteLine("GPT Plugin", "Found unaligned signature", signature); byte[] real = new byte[512]; Array.Copy(hdrBytes, 512, real, 0, 512); hdrBytes = real; misaligned = true; } else return false; } else return false; try { GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned); hdr = (GptHeader)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(GptHeader)); handle.Free(); } catch { return false; } DicConsole.DebugWriteLine("GPT Plugin", "hdr.revision = 0x{0:X8}", hdr.revision); DicConsole.DebugWriteLine("GPT Plugin", "hdr.headerSize = {0}", hdr.headerSize); DicConsole.DebugWriteLine("GPT Plugin", "hdr.headerCrc = 0x{0:X8}", hdr.headerCrc); DicConsole.DebugWriteLine("GPT Plugin", "hdr.reserved = 0x{0:X8}", hdr.reserved); DicConsole.DebugWriteLine("GPT Plugin", "hdr.myLBA = {0}", hdr.myLBA); DicConsole.DebugWriteLine("GPT Plugin", "hdr.alternateLBA = {0}", hdr.alternateLBA); DicConsole.DebugWriteLine("GPT Plugin", "hdr.firstUsableLBA = {0}", hdr.firstUsableLBA); DicConsole.DebugWriteLine("GPT Plugin", "hdr.lastUsableLBA = {0}", hdr.lastUsableLBA); DicConsole.DebugWriteLine("GPT Plugin", "hdr.diskGuid = {0}", hdr.diskGuid); DicConsole.DebugWriteLine("GPT Plugin", "hdr.entryLBA = {0}", hdr.entryLBA); DicConsole.DebugWriteLine("GPT Plugin", "hdr.entries = {0}", hdr.entries); DicConsole.DebugWriteLine("GPT Plugin", "hdr.entriesSize = {0}", hdr.entriesSize); DicConsole.DebugWriteLine("GPT Plugin", "hdr.entriesCrc = 0x{0:X8}", hdr.entriesCrc); if(hdr.signature != GptMagic) return false; if(hdr.myLBA != 1 + sectorOffset) return false; uint divisor, modulo, sectorSize; if(misaligned) { divisor = 4; modulo = (uint)(hdr.entryLBA % divisor); sectorSize = 512; } else { divisor = 1; modulo = 0; sectorSize = imagePlugin.GetSectorSize(); } uint totalEntriesSectors = hdr.entries * hdr.entriesSize / imagePlugin.GetSectorSize(); if(hdr.entries * hdr.entriesSize % imagePlugin.GetSectorSize() > 0) totalEntriesSectors++; byte[] temp = imagePlugin.ReadSectors(hdr.entryLBA / divisor, totalEntriesSectors + modulo); byte[] entriesBytes = new byte[temp.Length - modulo * 512]; Array.Copy(temp, modulo * 512, entriesBytes, 0, entriesBytes.Length); List entries = new List(); for(int i = 0; i < hdr.entries; i++) { try { byte[] entryBytes = new byte[hdr.entriesSize]; Array.Copy(entriesBytes, hdr.entriesSize * i, entryBytes, 0, hdr.entriesSize); GCHandle handle = GCHandle.Alloc(entryBytes, GCHandleType.Pinned); GptEntry entry = (GptEntry)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(GptEntry)); handle.Free(); entries.Add(entry); } #pragma warning disable RECS0022 // A catch clause that catches System.Exception and has an empty body catch { } #pragma warning restore RECS0022 // A catch clause that catches System.Exception and has an empty body } if(entries.Count == 0) return false; ulong pseq = 0; foreach(GptEntry entry in entries) if(entry.partitionType != Guid.Empty && entry.partitionId != Guid.Empty) { DicConsole.DebugWriteLine("GPT Plugin", "entry.partitionType = {0}", entry.partitionType); DicConsole.DebugWriteLine("GPT Plugin", "entry.partitionId = {0}", entry.partitionId); DicConsole.DebugWriteLine("GPT Plugin", "entry.startLBA = {0}", entry.startLBA); DicConsole.DebugWriteLine("GPT Plugin", "entry.endLBA = {0}", entry.endLBA); DicConsole.DebugWriteLine("GPT Plugin", "entry.attributes = 0x{0:X16}", entry.attributes); DicConsole.DebugWriteLine("GPT Plugin", "entry.name = {0}", entry.name); if(entry.startLBA / divisor > imagePlugin.GetSectors() || entry.endLBA / divisor > imagePlugin.GetSectors()) return false; CommonTypes.Partition part = new CommonTypes.Partition { Description = string.Format("ID: {0}", entry.partitionId), Size = (entry.endLBA - entry.startLBA + 1) * sectorSize, Name = entry.name, Length = (entry.endLBA - entry.startLBA + 1) / divisor, Sequence = pseq++, Offset = entry.startLBA * sectorSize, Start = entry.startLBA / divisor, Type = GetGuidTypeName(entry.partitionType), Scheme = Name }; DicConsole.DebugWriteLine("GPT Plugin", "part.PartitionType = {0}", part.Type); partitions.Add(part); } return true; } public string GetGuidTypeName(Guid type) { string strType = type.ToString().ToUpperInvariant(); switch(strType) { case "024DEE41-33E7-11D3-9D69-0008C781F39F": return "MBR scheme"; case "C12A7328-F81F-11D2-BA4B-00A0C93EC93B": return "EFI System"; case "21686148-6449-6E6F-744E-656564454649": return "BIOS Boot"; case "D3BFE2DE-3DAF-11DF-BA40-E3A556D89593": return "Intel Fast Flash (iFFS)"; case "F4019732-066E-4E12-8273-346C5641494F": return "Sony boot"; case "BFBFAFE7-A34F-448A-9A5B-6213EB736C22": return "Lenovo boot"; case "E3C9E316-0B5C-4DB8-817D-F92DF00215AE": return "Microsoft Reserved (MSR)"; case "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7": return "Microsoft Basic data"; case "5808C8AA-7E8F-42E0-85D2-E1E90434CFB3": return "Logical Disk Manager (LDM) metadata"; case "AF9B60A0-1431-4F62-BC68-3311714A69AD": return "Logical Disk Manager data"; case "DE94BBA4-06D1-4D40-A16A-BFD50179D6AC": return "Windows Recovery Environment"; case "37AFFC90-EF7D-4E96-91C3-2D7AE055B174": return "IBM General Parallel File System (GPFS)"; case "E75CAF8F-F680-4CEE-AFA3-B001E56EFC2D": return "Windows Storage Spaces"; case "75894C1E-3AEB-11D3-B7C1-7B03A0000000": return "HP-UX Data"; case "E2A1E728-32E3-11D6-A682-7B03A0000000": return "HP-UX Service"; case "0FC63DAF-8483-4772-8E79-3D69D8477DE4": return "Linux filesystem"; case "A19D880F-05FC-4D3B-A006-743F0F84911E": return "Linux RAID"; case "44479540-F297-41B2-9AF7-D131D5F0458A": return "Linux Root (x86)"; case "4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709": return "Linux Root (x86-64)"; case "69DAD710-2CE4-4E3C-B16C-21A1D49ABED3": return "Linux Root (32-bit ARM)"; case "B921B045-1DF0-41C3-AF44-4C6F280D3FAE": return "Linux Root (64-bit ARM/AArch64)"; case "0657FD6D-A4AB-43C4-84E5-0933C84B4F4F": return "Linux Swap"; case "E6D6D379-F507-44C2-A23C-238F2A3DF928": return "Logical Volume Manager (LVM)"; case "933AC7E1-2EB4-4F13-B844-0E14E2AEF915": return "Linux /home"; case "3B8F8425-20E0-4F3B-907F-1A25A76F98E8": return "Linux /srv"; case "7FFEC5C9-2D00-49B7-8941-3EA10A5586B7": return "Plain dm-crypt"; case "CA7D7CCB-63ED-4C53-861C-1742536059CC": return "LUKS"; case "8DA63339-0007-60C0-C436-083AC8230908": return "Linux Reserved"; case "83BD6B9D-7F41-11DC-BE0B-001560B84F0F": return "FreeBSD Boot"; case "516E7CB4-6ECF-11D6-8FF8-00022D09712B": return "FreeBSD Data"; case "516E7CB5-6ECF-11D6-8FF8-00022D09712B": return "FreeBSD Swap"; case "516E7CB6-6ECF-11D6-8FF8-00022D09712B": return "FreeBSD UFS"; case "516E7CB7-6ECF-11D6-8FF8-00022D09712B": return "FreeBSD UFS2"; case "516E7CB8-6ECF-11D6-8FF8-00022D09712B": return "FreeBSD Vinum"; case "516E7CBA-6ECF-11D6-8FF8-00022D09712B": return "FreeBSD ZFS"; case "74BA7DD9-A689-11E1-BD04-00E081286ACF": return "FreeBSD nandfs"; case "48465300-0000-11AA-AA11-00306543ECAC": return "Apple HFS"; case "55465300-0000-11AA-AA11-00306543ECAC": return "Apple UFS"; case "52414944-0000-11AA-AA11-00306543ECAC": return "Apple RAID"; case "52414944-5F4F-11AA-AA11-00306543ECAC": return "Apple RAID, offline"; case "426F6F74-0000-11AA-AA11-00306543ECAC": return "Apple Boot"; case "4C616265-6C00-11AA-AA11-00306543ECAC": return "Apple Label"; case "5265636F-7665-11AA-AA11-00306543ECAC": return "Apple TV Recovery"; case "53746F72-6167-11AA-AA11-00306543ECAC": return "Apple Core Storage"; case "6A82CB45-1DD2-11B2-99A6-080020736631": return "Solaris Boot"; case "6A85CF4D-1DD2-11B2-99A6-080020736631": return "Solaris Root"; case "6A87C46F-1DD2-11B2-99A6-080020736631": return "Solaris Swap"; case "6A8B642B-1DD2-11B2-99A6-080020736631": return "Solaris Backup"; case "6A898CC3-1DD2-11B2-99A6-080020736631": return "Solaris /usr or Apple ZFS"; case "6A8EF2E9-1DD2-11B2-99A6-080020736631": return "Solaris /var"; case "6A90BA39-1DD2-11B2-99A6-080020736631": return "Solaris /home"; case "6A9283A5-1DD2-11B2-99A6-080020736631": return "Solaris Alternate sector"; case "6A945A3B-1DD2-11B2-99A6-080020736631": case "6A9630D1-1DD2-11B2-99A6-080020736631": case "6A980767-1DD2-11B2-99A6-080020736631": case "6A96237F-1DD2-11B2-99A6-080020736631": case "6A8D2AC7-1DD2-11B2-99A6-080020736631": return "Solaris Reserved"; case "49F48D32-B10E-11DC-B99B-0019D1879648": return "NetBSD Swap"; case "49F48D5A-B10E-11DC-B99B-0019D1879648": return "NetBSD FFS"; case "49F48D82-B10E-11DC-B99B-0019D1879648": return "NetBSD LFS"; case "49F48DAA-B10E-11DC-B99B-0019D1879648": return "NetBSD RAID"; case "2DB519C4-B10F-11DC-B99B-0019D1879648": return "NetBSD Concatenated"; case "2DB519EC-B10F-11DC-B99B-0019D1879648": return "NetBSD Encrypted"; case "FE3A2A5D-4F32-41A7-B725-ACCC3285A309": return "ChromeOS kernel"; case "3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC": return "ChromeOS rootfs"; case "2E0A753D-9E48-43B0-8337-B15192CB1B5E": return "ChromeOS future use"; case "42465331-3BA3-10F1-802A-4861696B7521": return "Haiku BFS"; case "85D5E45E-237C-11E1-B4B3-E89A8F7FC3A7": return "MidnightBSD Boot"; case "85D5E45A-237C-11E1-B4B3-E89A8F7FC3A7": return "MidnightBSD Data"; case "85D5E45B-237C-11E1-B4B3-E89A8F7FC3A7": return "MidnightBSD Swap"; case "0394EF8B-237E-11E1-B4B3-E89A8F7FC3A7": return "MidnightBSD UFS"; case "85D5E45C-237C-11E1-B4B3-E89A8F7FC3A7": return "MidnightBSD Vinum"; case "85D5E45D-237C-11E1-B4B3-E89A8F7FC3A7": return "MidnightBSD ZFS"; case "45B0969E-9B03-4F30-B4C6-B4B80CEFF106": return "Ceph Journal"; case "45B0969E-9B03-4F30-B4C6-5EC00CEFF106": return "Ceph dm-crypt Encrypted Journal"; case "4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D": return "Ceph OSD"; case "4FBD7E29-9D25-41B8-AFD0-5EC00CEFF05D": return "Ceph dm-crypt OSD"; case "89C57F98-2FE5-4DC0-89C1-F3AD0CEFF2BE": return "Ceph disk in creation"; case "89C57F98-2FE5-4DC0-89C1-5EC00CEFF2BE": return "Ceph dm-crypt disk in creation"; case "824CC7A0-36A8-11E3-890A-952519AD3F61": return "OpenBSD Data"; case "CEF5A9AD-73BC-4601-89F3-CDEEEEE321A1": return "QNX Power-safe (QNX6)"; case "C91818F9-8025-47AF-89D2-F030D7000C2C": return "Plan 9"; case "9D275380-40AD-11DB-BF97-000C2911D1B8": return "VMware vmkcore (coredump)"; case "AA31E02A-400F-11DB-9590-000C2911D1B8": return "VMware VMFS"; case "9198EFFC-31C0-11DB-8F78-000C2911D1B8": return "VMware Reserved"; case "7412F7D5-A156-4B13-81DC-867174929325": return "ONIE boot"; case "D4E6E2CD-4469-46F3-B5CB-1BFF57AFC149": return "ONIE config"; case "9E1A2D38-C612-4316-AA26-8B49521E5A8B": return "PowerPC PReP boot"; case "0311FC50-01CA-4725-AD77-9ADBB20ACE98": return "Acronis Secure Zone"; case "7C3457EF-0000-11AA-AA11-00306543ECAC": return "Apple File System"; case "9D087404-1CA5-11DC-8817-01301BB8A9F5": return "DragonflyBSD Label"; case "9D58FDBD-1CA5-11DC-8817-01301BB8A9F5": return "DragonflyBSD Swap"; case "9D94CE7C-1CA5-11DC-8817-01301BB8A9F5": return "DragonflyBSD UFS"; case "9DD4478F-1CA5-11DC-8817-01301BB8A9F5": return "DragonflyBSD Vinum"; case "DBD5211B-1CA5-11DC-8817-01301BB8A9F5": return "DragonflyBSD CCD"; case "3D48CE54-1D16-11DC-8817-01301BB8A9F5": return "DragonflyBSD Label"; case "BD215AB2-1D16-11DC-8696-01301BB8A9F5": return "DragonflyBSD Legacy"; case "61DC63AC-6E38-11DC-8513-01301BB8A9F5": return "DragonflyBSD Hammer"; case "5CBB9AD1-862D-11DC-A94D-01301BB8A9F5": return "DragonflyBSD Hammer2"; default: return ""; } } [StructLayout(LayoutKind.Sequential)] struct GptHeader { public ulong signature; public uint revision; public uint headerSize; public uint headerCrc; public uint reserved; public ulong myLBA; public ulong alternateLBA; public ulong firstUsableLBA; public ulong lastUsableLBA; public Guid diskGuid; public ulong entryLBA; public uint entries; public uint entriesSize; public uint entriesCrc; } [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] struct GptEntry { public Guid partitionType; public Guid partitionId; public ulong startLBA; public ulong endLBA; public ulong attributes; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 36)] public string name; } } }