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Natalia Portillo
12288bee6d
* 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/Nintendo.cs: * DiscImageChef.Filesystems/AppleMFS.cs: * DiscImageChef.Filesystems/AppleHFSPlus.cs: Added constructor with parameters * DiscImageChef/Commands/ExtractFiles.cs: Corrected typoe in error output.
357 lines
16 KiB
C#
357 lines
16 KiB
C#
/***************************************************************************
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The Disc Image Chef
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----------------------------------------------------------------------------
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Filename : BFS.cs
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Version : 1.0
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Author(s) : Natalia Portillo
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Component : Filesystem plugins
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Revision : $Revision$
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Last change by : $Author$
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Date : $Date$
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--[ Description ] ----------------------------------------------------------
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Identifies BeOS' filesystem and shows information.
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--[ License ] --------------------------------------------------------------
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------------------------------------------
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Copyright (C) 2011-2014 Claunia.com
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****************************************************************************/
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//$Id$
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using System;
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using System.Text;
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using DiscImageChef;
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using System.Collections.Generic;
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// Information from Practical Filesystem Design, ISBN 1-55860-497-9
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namespace DiscImageChef.Filesystems
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{
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class BeFS : Filesystem
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{
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// Little endian constants (that is, as read by .NET :p)
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const UInt32 BEFS_MAGIC1 = 0x42465331;
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const UInt32 BEFS_MAGIC2 = 0xDD121031;
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const UInt32 BEFS_MAGIC3 = 0x15B6830E;
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const UInt32 BEFS_ENDIAN = 0x42494745;
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// Big endian constants
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const UInt32 BEFS_CIGAM1 = 0x31534642;
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const UInt32 BEFS_NAIDNE = 0x45474942;
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// Common constants
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const UInt32 BEFS_CLEAN = 0x434C454E;
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const UInt32 BEFS_DIRTY = 0x44495254;
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public BeFS()
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{
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Name = "Be Filesystem";
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PluginUUID = new Guid("dc8572b3-b6ad-46e4-8de9-cbe123ff6672");
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}
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public BeFS(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
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{
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Name = "Be Filesystem";
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PluginUUID = new Guid("dc8572b3-b6ad-46e4-8de9-cbe123ff6672");
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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((2 + partitionStart) >= imagePlugin.GetSectors())
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return false;
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UInt32 magic;
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UInt32 magic_be;
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byte[] sb_sector = imagePlugin.ReadSector(0 + partitionStart);
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magic = BitConverter.ToUInt32(sb_sector, 0x20);
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magic_be = BigEndianBitConverter.ToUInt32(sb_sector, 0x20);
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if(magic == BEFS_MAGIC1 || magic_be == BEFS_MAGIC1)
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return true;
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if(sb_sector.Length >= 0x400)
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{
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magic = BitConverter.ToUInt32(sb_sector, 0x220);
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magic_be = BigEndianBitConverter.ToUInt32(sb_sector, 0x220);
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}
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if(magic == BEFS_MAGIC1 || magic_be == BEFS_MAGIC1)
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return true;
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sb_sector = imagePlugin.ReadSector(1 + partitionStart);
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magic = BitConverter.ToUInt32(sb_sector, 0x20);
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magic_be = BigEndianBitConverter.ToUInt32(sb_sector, 0x20);
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if(magic == BEFS_MAGIC1 || magic_be == BEFS_MAGIC1)
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return true;
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return false;
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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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information = "";
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byte[] name_bytes = new byte[32];
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StringBuilder sb = new StringBuilder();
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BeSuperBlock besb = new BeSuperBlock();
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byte[] sb_sector = imagePlugin.ReadSector(0 + partitionStart);
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BigEndianBitConverter.IsLittleEndian = true; // Default for little-endian
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besb.magic1 = BigEndianBitConverter.ToUInt32(sb_sector, 0x20);
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if(besb.magic1 == BEFS_MAGIC1 || besb.magic1 == BEFS_CIGAM1) // Magic is at offset
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{
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BigEndianBitConverter.IsLittleEndian &= besb.magic1 != BEFS_CIGAM1;
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}
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else
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{
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sb_sector = imagePlugin.ReadSector(1 + partitionStart);
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besb.magic1 = BigEndianBitConverter.ToUInt32(sb_sector, 0x20);
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if(besb.magic1 == BEFS_MAGIC1 || besb.magic1 == BEFS_CIGAM1) // There is a boot sector
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{
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BigEndianBitConverter.IsLittleEndian &= besb.magic1 != BEFS_CIGAM1;
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}
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else if(sb_sector.Length >= 0x400)
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{
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byte[] temp = imagePlugin.ReadSector(0 + partitionStart);
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besb.magic1 = BigEndianBitConverter.ToUInt32(temp, 0x220);
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if(besb.magic1 == BEFS_MAGIC1 || besb.magic1 == BEFS_CIGAM1) // There is a boot sector
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{
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BigEndianBitConverter.IsLittleEndian &= besb.magic1 != BEFS_CIGAM1;
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sb_sector = new byte[0x200];
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Array.Copy(temp, 0x200, sb_sector, 0, 0x200);
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}
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else
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return;
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}
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else
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return;
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}
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Array.Copy(sb_sector, 0x000, name_bytes, 0, 0x20);
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besb.name = StringHandlers.CToString(name_bytes);
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besb.magic1 = BigEndianBitConverter.ToUInt32(sb_sector, 0x20);
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besb.fs_byte_order = BigEndianBitConverter.ToUInt32(sb_sector, 0x24);
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besb.block_size = BigEndianBitConverter.ToUInt32(sb_sector, 0x28);
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besb.block_shift = BigEndianBitConverter.ToUInt32(sb_sector, 0x2C);
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besb.num_blocks = BigEndianBitConverter.ToInt64(sb_sector, 0x30);
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besb.used_blocks = BigEndianBitConverter.ToInt64(sb_sector, 0x38);
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besb.inode_size = BigEndianBitConverter.ToInt32(sb_sector, 0x40);
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besb.magic2 = BigEndianBitConverter.ToUInt32(sb_sector, 0x44);
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besb.blocks_per_ag = BigEndianBitConverter.ToInt32(sb_sector, 0x48);
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besb.ag_shift = BigEndianBitConverter.ToInt32(sb_sector, 0x4C);
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besb.num_ags = BigEndianBitConverter.ToInt32(sb_sector, 0x50);
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besb.flags = BigEndianBitConverter.ToUInt32(sb_sector, 0x54);
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besb.log_blocks_ag = BigEndianBitConverter.ToInt32(sb_sector, 0x58);
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besb.log_blocks_start = BigEndianBitConverter.ToUInt16(sb_sector, 0x5C);
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besb.log_blocks_len = BigEndianBitConverter.ToUInt16(sb_sector, 0x5E);
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besb.log_start = BigEndianBitConverter.ToInt64(sb_sector, 0x60);
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besb.log_end = BigEndianBitConverter.ToInt64(sb_sector, 0x68);
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besb.magic3 = BigEndianBitConverter.ToUInt32(sb_sector, 0x70);
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besb.root_dir_ag = BigEndianBitConverter.ToInt32(sb_sector, 0x74);
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besb.root_dir_start = BigEndianBitConverter.ToUInt16(sb_sector, 0x78);
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besb.root_dir_len = BigEndianBitConverter.ToUInt16(sb_sector, 0x7A);
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besb.indices_ag = BigEndianBitConverter.ToInt32(sb_sector, 0x7C);
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besb.indices_start = BigEndianBitConverter.ToUInt16(sb_sector, 0x80);
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besb.indices_len = BigEndianBitConverter.ToUInt16(sb_sector, 0x82);
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if(!BigEndianBitConverter.IsLittleEndian) // Big-endian filesystem
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sb.AppendLine("Little-endian BeFS");
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else
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sb.AppendLine("Big-endian BeFS");
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if(besb.magic1 != BEFS_MAGIC1 || besb.fs_byte_order != BEFS_ENDIAN ||
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besb.magic2 != BEFS_MAGIC2 || besb.magic3 != BEFS_MAGIC3 ||
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besb.root_dir_len != 1 || besb.indices_len != 1 ||
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(1 << (int)besb.block_shift) != besb.block_size)
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{
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sb.AppendLine("Superblock seems corrupt, following information may be incorrect");
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sb.AppendFormat("Magic 1: 0x{0:X8} (Should be 0x42465331)", besb.magic1).AppendLine();
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sb.AppendFormat("Magic 2: 0x{0:X8} (Should be 0xDD121031)", besb.magic2).AppendLine();
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sb.AppendFormat("Magic 3: 0x{0:X8} (Should be 0x15B6830E)", besb.magic3).AppendLine();
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sb.AppendFormat("Filesystem endianness: 0x{0:X8} (Should be 0x42494745)", besb.fs_byte_order).AppendLine();
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sb.AppendFormat("Root folder's i-node size: {0} blocks (Should be 1)", besb.root_dir_len).AppendLine();
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sb.AppendFormat("Indices' i-node size: {0} blocks (Should be 1)", besb.indices_len).AppendLine();
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sb.AppendFormat("1 << block_shift == block_size => 1 << {0} == {1} (Should be {2})", besb.block_shift,
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1 << (int)besb.block_shift, besb.block_size).AppendLine();
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}
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if(besb.flags == BEFS_CLEAN)
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{
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if(besb.log_start == besb.log_end)
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sb.AppendLine("Filesystem is clean");
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else
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sb.AppendLine("Filesystem is dirty");
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}
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else if(besb.flags == BEFS_DIRTY)
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sb.AppendLine("Filesystem is dirty");
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else
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sb.AppendFormat("Unknown flags: {0:X8}", besb.flags).AppendLine();
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sb.AppendFormat("Volume name: {0}", besb.name).AppendLine();
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sb.AppendFormat("{0} bytes per block", besb.block_size).AppendLine();
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sb.AppendFormat("{0} blocks in volume ({1} bytes)", besb.num_blocks, besb.num_blocks * besb.block_size).AppendLine();
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sb.AppendFormat("{0} used blocks ({1} bytes)", besb.used_blocks, besb.used_blocks * besb.block_size).AppendLine();
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sb.AppendFormat("{0} bytes per i-node", besb.inode_size).AppendLine();
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sb.AppendFormat("{0} blocks per allocation group ({1} bytes)", besb.blocks_per_ag, besb.blocks_per_ag * besb.block_size).AppendLine();
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sb.AppendFormat("{0} allocation groups in volume", besb.num_ags).AppendLine();
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sb.AppendFormat("Journal resides in block {0} of allocation group {1} and runs for {2} blocks ({3} bytes)", besb.log_blocks_start,
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besb.log_blocks_ag, besb.log_blocks_len, besb.log_blocks_len * besb.block_size).AppendLine();
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sb.AppendFormat("Journal starts in byte {0} and ends in byte {1}", besb.log_start, besb.log_end).AppendLine();
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sb.AppendFormat("Root folder's i-node resides in block {0} of allocation group {1} and runs for {2} blocks ({3} bytes)", besb.root_dir_start,
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besb.root_dir_ag, besb.root_dir_len, besb.root_dir_len * besb.block_size).AppendLine();
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sb.AppendFormat("Indices' i-node resides in block {0} of allocation group {1} and runs for {2} blocks ({3} bytes)", besb.indices_start,
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besb.indices_ag, besb.indices_len, besb.indices_len * besb.block_size).AppendLine();
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information = sb.ToString();
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xmlFSType = new Schemas.FileSystemType();
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xmlFSType.Clusters = besb.num_blocks;
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xmlFSType.ClusterSize = (int)besb.block_size;
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xmlFSType.Dirty = besb.flags == BEFS_DIRTY;
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xmlFSType.FreeClusters = besb.num_blocks - besb.used_blocks;
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xmlFSType.FreeClustersSpecified = true;
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xmlFSType.Type = "BeFS";
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xmlFSType.VolumeName = besb.name;
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}
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/// <summary>
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/// Be superblock
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/// </summary>
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struct BeSuperBlock
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{
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/// <summary>0x000, Volume name, 32 bytes</summary>
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public string name;
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/// <summary>0x020, "BFS1", 0x42465331</summary>
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public UInt32 magic1;
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/// <summary>0x024, "BIGE", 0x42494745</summary>
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public UInt32 fs_byte_order;
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/// <summary>0x028, Bytes per block</summary>
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public UInt32 block_size;
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/// <summary>0x02C, 1 << block_shift == block_size</summary>
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public UInt32 block_shift;
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/// <summary>0x030, Blocks in volume</summary>
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public Int64 num_blocks;
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/// <summary>0x038, Used blocks in volume</summary>
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public Int64 used_blocks;
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/// <summary>0x040, Bytes per inode</summary>
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public Int32 inode_size;
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/// <summary>0x044, 0xDD121031</summary>
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public UInt32 magic2;
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/// <summary>0x048, Blocks per allocation group</summary>
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public Int32 blocks_per_ag;
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/// <summary>0x04C, 1 << ag_shift == blocks_per_ag</summary>
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public Int32 ag_shift;
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/// <summary>0x050, Allocation groups in volume</summary>
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public Int32 num_ags;
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/// <summary>0x054, 0x434c454e if clean, 0x44495254 if dirty</summary>
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public UInt32 flags;
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/// <summary>0x058, Allocation group of journal</summary>
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public Int32 log_blocks_ag;
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/// <summary>0x05C, Start block of journal, inside ag</summary>
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public UInt16 log_blocks_start;
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/// <summary>0x05E, Length in blocks of journal, inside ag</summary>
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public UInt16 log_blocks_len;
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/// <summary>0x060, Start of journal</summary>
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public Int64 log_start;
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/// <summary>0x068, End of journal</summary>
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public Int64 log_end;
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/// <summary>0x070, 0x15B6830E</summary>
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public UInt32 magic3;
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/// <summary>0x074, Allocation group where root folder's i-node resides</summary>
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public Int32 root_dir_ag;
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/// <summary>0x078, Start in ag of root folder's i-node</summary>
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public UInt16 root_dir_start;
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/// <summary>0x07A, As this is part of inode_addr, this is 1</summary>
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public UInt16 root_dir_len;
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/// <summary>0x07C, Allocation group where indices' i-node resides</summary>
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public Int32 indices_ag;
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/// <summary>0x080, Start in ag of indices' i-node</summary>
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public UInt16 indices_start;
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/// <summary>0x082, As this is part of inode_addr, this is 1</summary>
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public UInt16 indices_len;
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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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} |