mirror of
https://github.com/aaru-dps/Aaru.git
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Natalia Portillo
0de296b512
Corrected typo on audio track matching. * DiscImageChef.DiscImages/CDRWin.cs: Corrected detection of images with CD-Text. Do not output partitions for index 0. * DiscImageChef.DiscImages/CopyQM.cs: Do not create debug image output. * DiscImageChef.DiscImages/Nero.cs: Added type for any dvd seen on old Nero version. Corrected handling of images where pregap is not indicated (nonetheless, Nero stores them). Corrected handling of track 1 (Lead-In is stored there). Corrected session count in discs with 1 session. Do not add partitions of index 0. Corrected partition start offset of disc start. Guess disc type for old Nero discs. Corrected output of Mode2 sectors stored in RAW mode. Do not throw exceptions on values that should be returned empty or null if not supported by image format. * DiscImageChef.Filesystems/FFS.cs: * DiscImageChef.Filesystems/BFS.cs: * DiscImageChef.Filesystems/ODS.cs: * DiscImageChef.Filesystems/FAT.cs: * DiscImageChef.Filesystems/APFS.cs: * DiscImageChef.Filesystems/NTFS.cs: * DiscImageChef.Filesystems/SysV.cs: * DiscImageChef.Filesystems/HPFS.cs: * DiscImageChef.Filesystems/Opera.cs: * DiscImageChef.Filesystems/Acorn.cs: * DiscImageChef.Filesystems/extFS.cs: * DiscImageChef.Filesystems/BTRFS.cs: * DiscImageChef.Filesystems/ext2FS.cs: * DiscImageChef.Filesystems/ProDOS.cs: * DiscImageChef.Filesystems/SolarFS.cs: * DiscImageChef.Filesystems/UNIXBFS.cs: * DiscImageChef.Filesystems/ISO9660.cs: * DiscImageChef.Filesystems/MinixFS.cs: * DiscImageChef.Filesystems/AmigaDOS.cs: * DiscImageChef.Filesystems/PCEngine.cs: * DiscImageChef.Filesystems/AppleHFS.cs: * DiscImageChef.Filesystems/AppleHFSPlus.cs: * DiscImageChef.Filesystems/AppleMFS/Info.cs: Do not try to read past partition end. * DiscImageChef/Commands/CreateSidecar.cs: Added points for skipping whole image checksum on debugging. Track starts at index 0.
308 lines
15 KiB
C#
308 lines
15 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : BTRFS.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : B-tree file system plugin.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Identifies the B-tree file system and shows information.
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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 © 2011-2016 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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using DiscImageChef.Console;
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using System.Collections.Generic;
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namespace DiscImageChef.Filesystems
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{
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class BTRFS : Filesystem
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{
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/// <summary>
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/// BTRFS magic "_BHRfS_M"
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/// </summary>
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const ulong btrfsMagic = 0x4D5F53665248425F;
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public BTRFS()
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{
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Name = "B-tree file system";
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PluginUUID = new Guid("C904CF15-5222-446B-B7DB-02EAC5D781B3");
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}
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public BTRFS(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
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{
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Name = "B-tree file system";
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PluginUUID = new Guid("C904CF15-5222-446B-B7DB-02EAC5D781B3");
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct SuperBlock
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{
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x20)]
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public byte[] checksum;
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public Guid uuid;
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public ulong pba;
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public ulong flags;
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public ulong magic;
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public ulong generation;
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public ulong root_lba;
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public ulong chunk_lba;
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public ulong log_lba;
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public ulong log_root_transid;
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public ulong total_bytes;
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public ulong bytes_used;
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public ulong root_dir_objectid;
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public ulong num_devices;
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public uint sectorsize;
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public uint nodesize;
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public uint leafsize;
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public uint stripesize;
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public uint n;
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public ulong chunk_root_generation;
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public ulong compat_flags;
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public ulong compat_ro_flags;
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public ulong incompat_flags;
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public ushort csum_type;
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public byte root_level;
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public byte chunk_root_level;
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public byte log_root_level;
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public DevItem dev_item;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 0x100)]
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public string label;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x100)]
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public byte[] reserved;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x800)]
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public byte[] chunkpairs;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x4D5)]
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public byte[] unused;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct DevItem
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{
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public ulong id;
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public ulong bytes;
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public ulong used;
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public uint optimal_align;
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public uint optimal_width;
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public uint minimal_size;
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public ulong type;
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public ulong generation;
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public ulong start_offset;
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public uint dev_group;
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public byte seek_speed;
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public byte bandwitdh;
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public Guid device_uuid;
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public Guid uuid;
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}
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public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
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{
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if(partitionStart >= partitionEnd)
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return false;
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ulong sbSectorOff = 0x10000 / imagePlugin.GetSectorSize();
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uint sbSectorSize = 0x1000 / imagePlugin.GetSectorSize();
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if((sbSectorOff + sbSectorSize) >= partitionEnd)
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return false;
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byte[] sector = imagePlugin.ReadSectors(sbSectorOff + partitionStart, sbSectorSize);
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SuperBlock btrfsSb;
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try
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{
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GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
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btrfsSb = (SuperBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(SuperBlock));
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handle.Free();
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}
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catch
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{
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System.Console.WriteLine("Crash");
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return false;
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}
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DicConsole.DebugWriteLine("BTRFS Plugin", "sbSectorOff = {0}", sbSectorOff);
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DicConsole.DebugWriteLine("BTRFS Plugin", "sbSectorSize = {0}", sbSectorSize);
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DicConsole.DebugWriteLine("BTRFS Plugin", "partitionStart = {0}", partitionStart);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.magic = 0x{0:X16}", btrfsSb.magic);
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return btrfsSb.magic == btrfsMagic;
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}
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public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
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{
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StringBuilder sbInformation = new StringBuilder();
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xmlFSType = new Schemas.FileSystemType();
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information = "";
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ulong sbSectorOff = 0x10000 / imagePlugin.GetSectorSize();
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uint sbSectorSize = 0x1000 / imagePlugin.GetSectorSize();
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byte[] sector = imagePlugin.ReadSectors(sbSectorOff + partitionStart, sbSectorSize);
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SuperBlock btrfsSb;
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GCHandle handle = GCHandle.Alloc(sector, GCHandleType.Pinned);
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btrfsSb = (SuperBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(SuperBlock));
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handle.Free();
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.checksum = {0}", btrfsSb.checksum);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.uuid = {0}", btrfsSb.uuid);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.pba = {0}", btrfsSb.pba);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.flags = {0}", btrfsSb.flags);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.magic = {0}", btrfsSb.magic);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.generation = {0}", btrfsSb.generation);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.root_lba = {0}", btrfsSb.root_lba);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.chunk_lba = {0}", btrfsSb.chunk_lba);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.log_lba = {0}", btrfsSb.log_lba);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.log_root_transid = {0}", btrfsSb.log_root_transid);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.total_bytes = {0}", btrfsSb.total_bytes);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.bytes_used = {0}", btrfsSb.bytes_used);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.root_dir_objectid = {0}", btrfsSb.root_dir_objectid);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.num_devices = {0}", btrfsSb.num_devices);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.sectorsize = {0}", btrfsSb.sectorsize);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.nodesize = {0}", btrfsSb.nodesize);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.leafsize = {0}", btrfsSb.leafsize);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.stripesize = {0}", btrfsSb.stripesize);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.n = {0}", btrfsSb.n);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.chunk_root_generation = {0}", btrfsSb.chunk_root_generation);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.compat_flags = 0x{0:X16}", btrfsSb.compat_flags);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.compat_ro_flags = 0x{0:X16}", btrfsSb.compat_ro_flags);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.incompat_flags = 0x{0:X16}", btrfsSb.incompat_flags);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.csum_type = {0}", btrfsSb.csum_type);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.root_level = {0}", btrfsSb.root_level);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.chunk_root_level = {0}", btrfsSb.chunk_root_level);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.log_root_level = {0}", btrfsSb.log_root_level);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.id = 0x{0:X16}", btrfsSb.dev_item.id);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.bytes = {0}", btrfsSb.dev_item.bytes);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.used = {0}", btrfsSb.dev_item.used);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.optimal_align = {0}", btrfsSb.dev_item.optimal_align);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.optimal_width = {0}", btrfsSb.dev_item.optimal_width);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.minimal_size = {0}", btrfsSb.dev_item.minimal_size);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.type = {0}", btrfsSb.dev_item.type);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.generation = {0}", btrfsSb.dev_item.generation);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.start_offset = {0}", btrfsSb.dev_item.start_offset);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.dev_group = {0}", btrfsSb.dev_item.dev_group);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.seek_speed = {0}", btrfsSb.dev_item.seek_speed);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.bandwitdh = {0}", btrfsSb.dev_item.bandwitdh);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.device_uuid = {0}", btrfsSb.dev_item.device_uuid);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.dev_item.uuid = {0}", btrfsSb.dev_item.uuid);
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DicConsole.DebugWriteLine("BTRFS Plugin", "btrfsSb.label = {0}", btrfsSb.label);
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sbInformation.AppendLine("B-tree filesystem");
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sbInformation.AppendFormat("UUID: {0}", btrfsSb.uuid);
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sbInformation.AppendFormat("This superblock resides on physical block {0}", btrfsSb.pba);
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sbInformation.AppendFormat("Root tree starts at LBA {0}", btrfsSb.root_lba);
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sbInformation.AppendFormat("Chunk tree starts at LBA {0}", btrfsSb.chunk_lba);
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sbInformation.AppendFormat("Log tree starts at LBA {0}", btrfsSb.log_lba);
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sbInformation.AppendFormat("Volume has {0} bytes spanned in {1} devices", btrfsSb.total_bytes, btrfsSb.num_devices);
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sbInformation.AppendFormat("Volume has {0} bytes used", btrfsSb.bytes_used);
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sbInformation.AppendFormat("{0} bytes/sector", btrfsSb.sectorsize);
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sbInformation.AppendFormat("{0} bytes/node", btrfsSb.nodesize);
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sbInformation.AppendFormat("{0} bytes/leaf", btrfsSb.leafsize);
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sbInformation.AppendFormat("{0} bytes/stripe", btrfsSb.stripesize);
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sbInformation.AppendFormat("Flags: 0x{0:X}", btrfsSb.flags);
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sbInformation.AppendFormat("Compatible flags: 0x{0:X}", btrfsSb.compat_flags);
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sbInformation.AppendFormat("Read-only compatible flags: 0x{0:X}", btrfsSb.compat_ro_flags);
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sbInformation.AppendFormat("Incompatible flags: 0x{0:X}", btrfsSb.incompat_flags);
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sbInformation.AppendFormat("Device's UUID: {0}", btrfsSb.dev_item.uuid);
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sbInformation.AppendFormat("Volume label: {0}", btrfsSb.label);
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information = sbInformation.ToString();
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xmlFSType = new Schemas.FileSystemType();
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xmlFSType.Clusters = (long)(btrfsSb.total_bytes / btrfsSb.sectorsize);
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xmlFSType.ClusterSize = (int)btrfsSb.sectorsize;
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xmlFSType.FreeClusters = xmlFSType.Clusters - (long)(btrfsSb.bytes_used / btrfsSb.sectorsize);
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xmlFSType.FreeClustersSpecified = true;
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xmlFSType.VolumeName = btrfsSb.label;
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xmlFSType.VolumeSerial = string.Format("{0}", btrfsSb.uuid);
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xmlFSType.VolumeSetIdentifier = string.Format("{0}", btrfsSb.dev_item.device_uuid);
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xmlFSType.Type = Name;
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}
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public override Errno Mount()
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{
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return Errno.NotImplemented;
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}
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public override Errno Mount(bool debug)
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{
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return Errno.NotImplemented;
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}
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public override Errno Unmount()
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{
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return Errno.NotImplemented;
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}
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public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
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{
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return Errno.NotImplemented;
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}
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public override Errno GetAttributes(string path, ref FileAttributes attributes)
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{
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return Errno.NotImplemented;
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}
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public override Errno ListXAttr(string path, ref List<string> xattrs)
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{
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return Errno.NotImplemented;
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}
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public override Errno GetXattr(string path, string xattr, ref byte[] buf)
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{
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return Errno.NotImplemented;
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}
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public override Errno Read(string path, long offset, long size, ref byte[] buf)
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{
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return Errno.NotImplemented;
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}
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public override Errno ReadDir(string path, ref List<string> contents)
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{
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return Errno.NotImplemented;
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}
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public override Errno StatFs(ref FileSystemInfo stat)
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{
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return Errno.NotImplemented;
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}
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public override Errno Stat(string path, ref FileEntryInfo stat)
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{
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return Errno.NotImplemented;
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}
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public override Errno ReadLink(string path, ref string dest)
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{
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return Errno.NotImplemented;
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}
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}
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}
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