mirror of
https://github.com/aaru-dps/Aaru.git
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Natalia Portillo
4ef3252b24
Introduces constant fields for respective debug module names, replacing the hardcoded ones. This is done to standardize the naming convention, reduce redundancy and potentially avoid any typos or name mismatches across the project. This change makes the code more maintainable and easier to update in case module names need to be changed.
274 lines
12 KiB
C#
274 lines
12 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Info.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Random Block File filesystem plugin
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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.Text;
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using Aaru.CommonTypes.AaruMetadata;
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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 Aaru.Helpers;
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using Partition = Aaru.CommonTypes.Partition;
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namespace Aaru.Filesystems;
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/// <inheritdoc />
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/// <summary>Implements detection of the Locus filesystem</summary>
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public sealed partial class RBF : IFilesystem
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{
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/// <inheritdoc />
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public bool Identify(IMediaImage imagePlugin, Partition partition)
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{
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if(imagePlugin.Info.SectorSize < 256)
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return false;
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// Documentation says ID should be sector 0
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// I've found that OS-9/X68000 has it on sector 4
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// I've read OS-9/Apple2 has it on sector 15
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foreach(int i in new[]
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{
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0, 4, 15
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})
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{
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ulong location = (ulong)i;
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uint sbSize = (uint)(Marshal.SizeOf<IdSector>() / imagePlugin.Info.SectorSize);
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if(Marshal.SizeOf<IdSector>() % imagePlugin.Info.SectorSize != 0)
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sbSize++;
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if(partition.Start + location + sbSize >= imagePlugin.Info.Sectors)
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break;
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ErrorNumber errno = imagePlugin.ReadSectors(partition.Start + location, sbSize, out byte[] sector);
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if(errno != ErrorNumber.NoError)
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return false;
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if(sector.Length < Marshal.SizeOf<IdSector>())
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return false;
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IdSector rbfSb = Marshal.ByteArrayToStructureBigEndian<IdSector>(sector);
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NewIdSector rbf9000Sb = Marshal.ByteArrayToStructureBigEndian<NewIdSector>(sector);
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AaruConsole.DebugWriteLine(MODULE_NAME, Localization.magic_at_0_equals_1_or_2_expected_3_or_4, location,
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rbfSb.dd_sync, rbf9000Sb.rid_sync, RBF_SYNC, RBF_CNYS);
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if(rbfSb.dd_sync == RBF_SYNC ||
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rbf9000Sb.rid_sync is RBF_SYNC or RBF_CNYS)
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return true;
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}
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return false;
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}
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/// <inheritdoc />
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public void GetInformation(IMediaImage imagePlugin, Partition partition, Encoding encoding, out string information,
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out FileSystem metadata)
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{
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encoding ??= Encoding.GetEncoding("iso-8859-15");
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information = "";
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metadata = new FileSystem();
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if(imagePlugin.Info.SectorSize < 256)
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return;
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var rbfSb = new IdSector();
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var rbf9000Sb = new NewIdSector();
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foreach(int i in new[]
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{
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0, 4, 15
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})
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{
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ulong location = (ulong)i;
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uint sbSize = (uint)(Marshal.SizeOf<IdSector>() / imagePlugin.Info.SectorSize);
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if(Marshal.SizeOf<IdSector>() % imagePlugin.Info.SectorSize != 0)
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sbSize++;
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ErrorNumber errno = imagePlugin.ReadSectors(partition.Start + location, sbSize, out byte[] sector);
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if(errno != ErrorNumber.NoError)
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return;
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if(sector.Length < Marshal.SizeOf<IdSector>())
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return;
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rbfSb = Marshal.ByteArrayToStructureBigEndian<IdSector>(sector);
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rbf9000Sb = Marshal.ByteArrayToStructureBigEndian<NewIdSector>(sector);
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AaruConsole.DebugWriteLine(MODULE_NAME, Localization.magic_at_0_equals_1_or_2_expected_3_or_4, location,
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rbfSb.dd_sync, rbf9000Sb.rid_sync, RBF_SYNC, RBF_CNYS);
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if(rbfSb.dd_sync == RBF_SYNC ||
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rbf9000Sb.rid_sync is RBF_SYNC or RBF_CNYS)
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break;
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}
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if(rbfSb.dd_sync != RBF_SYNC &&
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rbf9000Sb.rid_sync != RBF_SYNC &&
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rbf9000Sb.rid_sync != RBF_CNYS)
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return;
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if(rbf9000Sb.rid_sync == RBF_CNYS)
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rbf9000Sb = (NewIdSector)Marshal.SwapStructureMembersEndian(rbf9000Sb);
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var sb = new StringBuilder();
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sb.AppendLine(Localization.OS_9_Random_Block_File);
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if(rbf9000Sb.rid_sync == RBF_SYNC)
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{
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sb.AppendFormat(Localization.Volume_ID_0_X8, rbf9000Sb.rid_diskid).AppendLine();
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sb.AppendFormat(Localization._0_blocks_in_volume, rbf9000Sb.rid_totblocks).AppendLine();
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sb.AppendFormat(Localization._0_cylinders, rbf9000Sb.rid_cylinders).AppendLine();
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sb.AppendFormat(Localization._0_blocks_in_cylinder_zero, rbf9000Sb.rid_cyl0size).AppendLine();
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sb.AppendFormat(Localization._0_blocks_per_cylinder, rbf9000Sb.rid_cylsize).AppendLine();
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sb.AppendFormat(Localization._0_heads, rbf9000Sb.rid_heads).AppendLine();
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sb.AppendFormat(Localization._0_bytes_per_block, rbf9000Sb.rid_blocksize).AppendLine();
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// TODO: Convert to flags?
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sb.AppendLine((rbf9000Sb.rid_format & 0x01) == 0x01 ? Localization.Disk_is_double_sided
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: Localization.Disk_is_single_sided);
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sb.AppendLine((rbf9000Sb.rid_format & 0x02) == 0x02 ? Localization.Disk_is_double_density
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: Localization.Disk_is_single_density);
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if((rbf9000Sb.rid_format & 0x10) == 0x10)
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sb.AppendLine(Localization.Disk_is_384_TPI);
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else if((rbf9000Sb.rid_format & 0x08) == 0x08)
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sb.AppendLine(Localization.Disk_is_192_TPI);
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else if((rbf9000Sb.rid_format & 0x04) == 0x04)
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sb.AppendLine(Localization.Disk_is_96_TPI_or_135_TPI);
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else
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sb.AppendLine(Localization.Disk_is_48_TPI);
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sb.AppendFormat(Localization.Allocation_bitmap_descriptor_starts_at_block_0,
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rbf9000Sb.rid_bitmap == 0 ? 1 : rbf9000Sb.rid_bitmap).AppendLine();
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if(rbf9000Sb.rid_firstboot > 0)
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sb.AppendFormat(Localization.Debugger_descriptor_starts_at_block_0, rbf9000Sb.rid_firstboot).
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AppendLine();
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if(rbf9000Sb.rid_bootfile > 0)
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sb.AppendFormat(Localization.Boot_file_descriptor_starts_at_block_0, rbf9000Sb.rid_bootfile).
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AppendLine();
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sb.AppendFormat(Localization.Root_directory_descriptor_starts_at_block_0, rbf9000Sb.rid_rootdir).
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AppendLine();
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sb.AppendFormat(Localization.Disk_is_owned_by_group_0_user_1, rbf9000Sb.rid_group, rbf9000Sb.rid_owner).
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AppendLine();
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sb.AppendFormat(Localization.Volume_was_created_on_0, DateHandlers.UnixToDateTime(rbf9000Sb.rid_ctime)).
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AppendLine();
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sb.AppendFormat(Localization.Volume_identification_block_was_last_written_on_0,
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DateHandlers.UnixToDateTime(rbf9000Sb.rid_mtime)).AppendLine();
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sb.AppendFormat(Localization.Volume_name_0, StringHandlers.CToString(rbf9000Sb.rid_name, encoding)).
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AppendLine();
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metadata = new FileSystem
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{
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Type = FS_TYPE,
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Bootable = rbf9000Sb.rid_bootfile > 0,
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ClusterSize = rbf9000Sb.rid_blocksize,
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Clusters = rbf9000Sb.rid_totblocks,
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CreationDate = DateHandlers.UnixToDateTime(rbf9000Sb.rid_ctime),
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ModificationDate = DateHandlers.UnixToDateTime(rbf9000Sb.rid_mtime),
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VolumeName = StringHandlers.CToString(rbf9000Sb.rid_name, encoding),
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VolumeSerial = $"{rbf9000Sb.rid_diskid:X8}"
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};
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}
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else
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{
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sb.AppendFormat(Localization.Volume_ID_0_X4, rbfSb.dd_dsk).AppendLine();
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sb.AppendFormat(Localization._0_blocks_in_volume, LSNToUInt32(rbfSb.dd_tot)).AppendLine();
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sb.AppendFormat(Localization._0_tracks, rbfSb.dd_tks).AppendLine();
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sb.AppendFormat(Localization._0_sectors_per_track, rbfSb.dd_spt).AppendLine();
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sb.AppendFormat(Localization._0_bytes_per_sector, 256 << rbfSb.dd_lsnsize).AppendLine();
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sb.AppendFormat(Localization._0_sectors_per_cluster_1_bytes, rbfSb.dd_bit,
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rbfSb.dd_bit * (256 << rbfSb.dd_lsnsize)).AppendLine();
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// TODO: Convert to flags?
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sb.AppendLine((rbfSb.dd_fmt & 0x01) == 0x01 ? Localization.Disk_is_double_sided
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: Localization.Disk_is_single_sided);
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sb.AppendLine((rbfSb.dd_fmt & 0x02) == 0x02 ? Localization.Disk_is_double_density
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: Localization.Disk_is_single_density);
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if((rbfSb.dd_fmt & 0x10) == 0x10)
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sb.AppendLine(Localization.Disk_is_384_TPI);
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else if((rbfSb.dd_fmt & 0x08) == 0x08)
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sb.AppendLine(Localization.Disk_is_192_TPI);
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else if((rbfSb.dd_fmt & 0x04) == 0x04)
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sb.AppendLine(Localization.Disk_is_96_TPI_or_135_TPI);
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else
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sb.AppendLine(Localization.Disk_is_48_TPI);
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sb.AppendFormat(Localization.Allocation_bitmap_descriptor_starts_at_block_0,
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rbfSb.dd_maplsn == 0 ? 1 : rbfSb.dd_maplsn).AppendLine();
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sb.AppendFormat(Localization._0_bytes_in_allocation_bitmap, rbfSb.dd_map).AppendLine();
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if(LSNToUInt32(rbfSb.dd_bt) > 0 &&
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rbfSb.dd_bsz > 0)
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sb.AppendFormat(Localization.Boot_file_starts_at_block_0_and_has_1_bytes, LSNToUInt32(rbfSb.dd_bt),
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rbfSb.dd_bsz).AppendLine();
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sb.AppendFormat(Localization.Root_directory_descriptor_starts_at_block_0, LSNToUInt32(rbfSb.dd_dir)).
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AppendLine();
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sb.AppendFormat(Localization.Disk_is_owned_by_user_0, rbfSb.dd_own).AppendLine();
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sb.AppendFormat(Localization.Volume_was_created_on_0, DateHandlers.Os9ToDateTime(rbfSb.dd_dat)).
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AppendLine();
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sb.AppendFormat(Localization.Volume_attributes_0, rbfSb.dd_att).AppendLine();
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sb.AppendFormat(Localization.Volume_name_0, StringHandlers.CToString(rbfSb.dd_nam, encoding)).AppendLine();
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sb.AppendFormat(Localization.Path_descriptor_options_0, StringHandlers.CToString(rbfSb.dd_opt, encoding)).
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AppendLine();
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metadata = new FileSystem
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{
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Type = FS_TYPE,
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Bootable = LSNToUInt32(rbfSb.dd_bt) > 0 && rbfSb.dd_bsz > 0,
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ClusterSize = (uint)(rbfSb.dd_bit * (256 << rbfSb.dd_lsnsize)),
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Clusters = LSNToUInt32(rbfSb.dd_tot),
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CreationDate = DateHandlers.Os9ToDateTime(rbfSb.dd_dat),
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VolumeName = StringHandlers.CToString(rbfSb.dd_nam, encoding),
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VolumeSerial = $"{rbfSb.dd_dsk:X4}"
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};
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}
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information = sb.ToString();
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}
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} |