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Aaru/Aaru.Filesystems/HPOFS/Info.cs

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// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Info.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : High Performance Optical File System plugin.
//
// --[ Description ] ----------------------------------------------------------
//
// Identifies the High Performance Optical File System and shows
// information.
//
// --[ 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 <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2022 Natalia Portillo
// ****************************************************************************/
namespace Aaru.Filesystems;
using System.Linq;
using System.Text;
using Aaru.CommonTypes;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Interfaces;
using Aaru.Console;
using Aaru.Helpers;
using Schemas;
public sealed partial class HPOFS
{
/// <inheritdoc />
public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if(16 + partition.Start >= partition.End)
return false;
ErrorNumber errno =
imagePlugin.ReadSector(0 + partition.Start,
out byte[] hpofsBpbSector); // Seek to BIOS parameter block, on logical sector 0
if(errno != ErrorNumber.NoError)
return false;
if(hpofsBpbSector.Length < 512)
return false;
BiosParameterBlock bpb = Marshal.ByteArrayToStructureLittleEndian<BiosParameterBlock>(hpofsBpbSector);
return bpb.fs_type.SequenceEqual(_type);
}
/// <inheritdoc />
public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information, Encoding encoding)
{
Encoding = encoding ?? Encoding.GetEncoding("ibm850");
information = "";
var sb = new StringBuilder();
ErrorNumber errno =
imagePlugin.ReadSector(0 + partition.Start,
out byte[] hpofsBpbSector); // Seek to BIOS parameter block, on logical sector 0
if(errno != ErrorNumber.NoError)
return;
errno = imagePlugin.ReadSector(13 + partition.Start,
out byte[] medInfoSector); // Seek to media information block, on logical sector 13
if(errno != ErrorNumber.NoError)
return;
errno = imagePlugin.ReadSector(14 + partition.Start,
out byte[] volInfoSector); // Seek to volume information block, on logical sector 14
if(errno != ErrorNumber.NoError)
return;
BiosParameterBlock bpb = Marshal.ByteArrayToStructureLittleEndian<BiosParameterBlock>(hpofsBpbSector);
MediaInformationBlock mib = Marshal.ByteArrayToStructureBigEndian<MediaInformationBlock>(medInfoSector);
VolumeInformationBlock vib = Marshal.ByteArrayToStructureBigEndian<VolumeInformationBlock>(volInfoSector);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.oem_name = \"{0}\"", StringHandlers.CToString(bpb.oem_name));
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.bps = {0}", bpb.bps);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.spc = {0}", bpb.spc);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.rsectors = {0}", bpb.rsectors);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.fats_no = {0}", bpb.fats_no);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.root_ent = {0}", bpb.root_ent);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.sectors = {0}", bpb.sectors);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.media = 0x{0:X2}", bpb.media);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.spfat = {0}", bpb.spfat);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.sptrk = {0}", bpb.sptrk);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.heads = {0}", bpb.heads);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.hsectors = {0}", bpb.hsectors);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.big_sectors = {0}", bpb.big_sectors);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.drive_no = 0x{0:X2}", bpb.drive_no);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.nt_flags = {0}", bpb.nt_flags);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.signature = 0x{0:X2}", bpb.signature);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.serial_no = 0x{0:X8}", bpb.serial_no);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.volume_label = \"{0}\"",
StringHandlers.SpacePaddedToString(bpb.volume_label));
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.fs_type = \"{0}\"", StringHandlers.CToString(bpb.fs_type));
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.boot_code is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(bpb.boot_code));
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.unknown = {0}", bpb.unknown);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.unknown2 = {0}", bpb.unknown2);
AaruConsole.DebugWriteLine("HPOFS Plugin", "bpb.signature2 = {0}", bpb.signature2);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.blockId = \"{0}\"", StringHandlers.CToString(mib.blockId));
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.volumeLabel = \"{0}\"",
StringHandlers.SpacePaddedToString(mib.volumeLabel));
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.comment = \"{0}\"",
StringHandlers.SpacePaddedToString(mib.comment));
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.serial = 0x{0:X8}", mib.serial);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.creationTimestamp = {0}",
DateHandlers.DosToDateTime(mib.creationDate, mib.creationTime));
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.codepageType = {0}", mib.codepageType);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.codepage = {0}", mib.codepage);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.rps = {0}", mib.rps);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.bps = {0}", mib.bps);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.bpc = {0}", mib.bpc);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.unknown2 = {0}", mib.unknown2);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.sectors = {0}", mib.sectors);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.unknown3 = {0}", mib.unknown3);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.unknown4 = {0}", mib.unknown4);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.major = {0}", mib.major);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.minor = {0}", mib.minor);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.unknown5 = {0}", mib.unknown5);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.unknown6 = {0}", mib.unknown6);
AaruConsole.DebugWriteLine("HPOFS Plugin", "mib.filler is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(mib.filler));
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.blockId = \"{0}\"", StringHandlers.CToString(vib.blockId));
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown = {0}", vib.unknown);
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown2 = {0}", vib.unknown2);
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown3 is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(vib.unknown3));
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown4 = \"{0}\"",
StringHandlers.SpacePaddedToString(vib.unknown4));
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.owner = \"{0}\"",
StringHandlers.SpacePaddedToString(vib.owner));
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown5 = \"{0}\"",
StringHandlers.SpacePaddedToString(vib.unknown5));
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown6 = {0}", vib.unknown6);
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.percentFull = {0}", vib.percentFull);
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.unknown7 = {0}", vib.unknown7);
AaruConsole.DebugWriteLine("HPOFS Plugin", "vib.filler is empty? = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(vib.filler));
sb.AppendLine("High Performance Optical File System");
sb.AppendFormat("OEM name: {0}", StringHandlers.SpacePaddedToString(bpb.oem_name)).AppendLine();
sb.AppendFormat("{0} bytes per sector", bpb.bps).AppendLine();
sb.AppendFormat("{0} sectors per cluster", bpb.spc).AppendLine();
sb.AppendFormat("Media descriptor: 0x{0:X2}", bpb.media).AppendLine();
sb.AppendFormat("{0} sectors per track", bpb.sptrk).AppendLine();
sb.AppendFormat("{0} heads", bpb.heads).AppendLine();
sb.AppendFormat("{0} sectors hidden before BPB", bpb.hsectors).AppendLine();
sb.AppendFormat("{0} sectors on volume ({1} bytes)", mib.sectors, mib.sectors * bpb.bps).AppendLine();
sb.AppendFormat("BIOS Drive Number: 0x{0:X2}", bpb.drive_no).AppendLine();
sb.AppendFormat("Serial number: 0x{0:X8}", mib.serial).AppendLine();
sb.AppendFormat("Volume label: {0}", StringHandlers.SpacePaddedToString(mib.volumeLabel, Encoding)).
AppendLine();
sb.AppendFormat("Volume comment: {0}", StringHandlers.SpacePaddedToString(mib.comment, Encoding)).AppendLine();
sb.AppendFormat("Volume owner: {0}", StringHandlers.SpacePaddedToString(vib.owner, Encoding)).AppendLine();
sb.AppendFormat("Volume created on {0}", DateHandlers.DosToDateTime(mib.creationDate, mib.creationTime)).
AppendLine();
sb.AppendFormat("Volume uses {0} codepage {1}", mib.codepageType is > 0 and < 3
? mib.codepageType == 2
? "EBCDIC"
: "ASCII" : "Unknown", mib.codepage).AppendLine();
sb.AppendFormat("RPS level: {0}", mib.rps).AppendLine();
sb.AppendFormat("Filesystem version: {0}.{1}", mib.major, mib.minor).AppendLine();
sb.AppendFormat("Volume can be filled up to {0}%", vib.percentFull).AppendLine();
XmlFsType = new FileSystemType
{
Clusters = mib.sectors / bpb.spc,
ClusterSize = (uint)(bpb.bps * bpb.spc),
CreationDate = DateHandlers.DosToDateTime(mib.creationDate, mib.creationTime),
CreationDateSpecified = true,
DataPreparerIdentifier = StringHandlers.SpacePaddedToString(vib.owner, Encoding),
Type = "HPOFS",
VolumeName = StringHandlers.SpacePaddedToString(mib.volumeLabel, Encoding),
VolumeSerial = $"{mib.serial:X8}",
SystemIdentifier = StringHandlers.SpacePaddedToString(bpb.oem_name)
};
information = sb.ToString();
}
}
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