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305 lines
11 KiB
C#
305 lines
11 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : CIS.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Device structures decoders.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Decodes PCMCIA Card Information Structure.
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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 © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Text;
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using Aaru.Helpers;
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namespace Aaru.Decoders.PCMCIA;
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[SuppressMessage("ReSharper", "InconsistentNaming")]
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[SuppressMessage("ReSharper", "MemberCanBeInternal")]
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[SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
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[SuppressMessage("ReSharper", "UnusedMember.Global")]
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public static class CIS
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{
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// TODO: Handle links? Or are they removed in lower layers of the operating system drivers?
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public static Tuple[] GetTuples(byte[] data)
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{
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List<Tuple> tuples = [];
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var position = 0;
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while(position < data.Length)
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{
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var tuple = new Tuple
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{
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Code = (TupleCodes)data[position]
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};
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if(tuple.Code == TupleCodes.CISTPL_NULL) continue;
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if(tuple.Code == TupleCodes.CISTPL_END) break;
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tuple.Link = data[position + 1];
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if(position + 2 + tuple.Link > data.Length) break;
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tuple.Data = new byte[tuple.Link + 2];
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Array.Copy(data, position, tuple.Data, 0, tuple.Link + 2);
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tuples.Add(tuple);
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position += tuple.Link + 2;
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}
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return tuples.ToArray();
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}
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public static DeviceGeometryTuple DecodeDeviceGeometryTuple(Tuple tuple)
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{
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if(tuple == null) return null;
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if(tuple.Code != TupleCodes.CISTPL_DEVICEGEO && tuple.Code != TupleCodes.CISTPL_DEVICEGEO_A) return null;
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return tuple.Data == null ? null : DecodeDeviceGeometryTuple(tuple.Data);
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}
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public static DeviceGeometryTuple DecodeDeviceGeometryTuple(byte[] data)
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{
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if((data?.Length - 2) % 6 != 0) return null;
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var tuple = new DeviceGeometryTuple();
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List<DeviceGeometry> geometries = [];
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for(var position = 2; position < data.Length; position += 6)
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{
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var geometry = new DeviceGeometry
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{
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CardInterface = data[position],
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EraseBlockSize = data[position + 1],
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ReadBlockSize = data[position + 2],
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WriteBlockSize = data[position + 3],
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Partitions = data[position + 4],
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Interleaving = data[position + 5]
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};
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geometries.Add(geometry);
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}
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tuple.Code = (TupleCodes)data[0];
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tuple.Link = data[1];
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tuple.Geometries = geometries.ToArray();
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return tuple;
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}
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public static string PrettifyDeviceGeometryTuple(DeviceGeometryTuple tuple)
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{
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if(tuple == null) return null;
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if(tuple.Code != TupleCodes.CISTPL_DEVICEGEO && tuple.Code != TupleCodes.CISTPL_DEVICEGEO_A) return null;
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var sb = new StringBuilder();
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sb.AppendLine(Localization.PCMCIA_Device_Geometry_Tuples);
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foreach(DeviceGeometry geometry in tuple.Geometries)
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{
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sb.AppendLine("\t" + Localization.Geometry);
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sb.AppendFormat("\t\t" + Localization.Device_width_0_bits, (1 << geometry.CardInterface - 1) * 8)
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.AppendLine();
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sb.AppendFormat("\t\t" + Localization.Erase_block_0_bytes,
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(1 << geometry.EraseBlockSize - 1) * (1 << geometry.Interleaving - 1))
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.AppendLine();
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sb.AppendFormat("\t\t" + Localization.Read_block_0_bytes,
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(1 << geometry.ReadBlockSize - 1) * (1 << geometry.Interleaving - 1))
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.AppendLine();
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sb.AppendFormat("\t\t" + Localization.Write_block_0_bytes,
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(1 << geometry.WriteBlockSize - 1) * (1 << geometry.Interleaving - 1))
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.AppendLine();
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sb.AppendFormat("\t\t" + Localization.Partition_alignment_0_bytes,
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(1 << geometry.EraseBlockSize - 1) *
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(1 << geometry.Interleaving - 1) *
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(1 << geometry.Partitions - 1))
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.AppendLine();
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}
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return sb.ToString();
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}
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public static string PrettifyDeviceGeometryTuple(Tuple tuple) =>
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PrettifyDeviceGeometryTuple(DecodeDeviceGeometryTuple(tuple));
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public static string PrettifyDeviceGeometryTuple(byte[] data) =>
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PrettifyDeviceGeometryTuple(DecodeDeviceGeometryTuple(data));
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public static ManufacturerIdentificationTuple DecodeManufacturerIdentificationTuple(Tuple tuple)
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{
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if(tuple?.Code != TupleCodes.CISTPL_MANFID) return null;
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return tuple.Data == null ? null : DecodeManufacturerIdentificationTuple(tuple.Data);
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}
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public static ManufacturerIdentificationTuple DecodeManufacturerIdentificationTuple(byte[] data)
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{
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if(data == null) return null;
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if(data.Length < 6) return null;
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return new ManufacturerIdentificationTuple
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{
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Code = (TupleCodes)data[0],
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Link = data[1],
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ManufacturerID = BitConverter.ToUInt16(data, 2),
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CardID = BitConverter.ToUInt16(data, 4)
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};
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}
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public static string PrettifyManufacturerIdentificationTuple(ManufacturerIdentificationTuple tuple)
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{
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if(tuple?.Code != TupleCodes.CISTPL_MANFID) return null;
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var sb = new StringBuilder();
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sb.AppendLine(Localization.Manufacturer_Identification_Tuple);
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sb.AppendFormat("\t" + Localization.Manufacturer_ID_0, VendorCode.Prettify(tuple.ManufacturerID)).AppendLine();
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sb.AppendFormat("\t" + Localization.Card_ID_0, tuple.CardID).AppendLine();
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return sb.ToString();
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}
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public static string PrettifyManufacturerIdentificationTuple(Tuple tuple) =>
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PrettifyManufacturerIdentificationTuple(DecodeManufacturerIdentificationTuple(tuple));
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public static string PrettifyManufacturerIdentificationTuple(byte[] data) =>
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PrettifyManufacturerIdentificationTuple(DecodeManufacturerIdentificationTuple(data));
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public static Level1VersionTuple DecodeLevel1VersionTuple(Tuple tuple)
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{
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if(tuple?.Code != TupleCodes.CISTPL_VERS_1) return null;
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return tuple.Data == null ? null : DecodeLevel1VersionTuple(tuple.Data);
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}
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public static Level1VersionTuple DecodeLevel1VersionTuple(byte[] data)
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{
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if(data == null) return null;
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if(data.Length < 4) return null;
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List<byte> buffer = [];
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List<string> strings = null;
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var firstString = false;
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const bool secondString = false;
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var tuple = new Level1VersionTuple
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{
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Code = (TupleCodes)data[0],
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Link = data[1],
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MajorVersion = data[2],
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MinorVersion = data[3]
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};
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for(var position = 4; position < data.Length; position++)
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{
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if(data[position] == 0xFF) break;
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buffer.Add(data[position]);
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if(data[position] != 0x00) continue;
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if(!firstString)
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{
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tuple.Manufacturer = StringHandlers.CToString(buffer.ToArray());
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buffer = [];
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firstString = true;
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continue;
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}
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// TODO: Check this
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if(!secondString)
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{
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tuple.Product = StringHandlers.CToString(buffer.ToArray());
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buffer = [];
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firstString = true;
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continue;
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}
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strings ??= [];
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strings.Add(StringHandlers.CToString(buffer.ToArray()));
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buffer = [];
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}
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if(strings != null) tuple.AdditionalInformation = strings.ToArray();
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return tuple;
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}
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public static string PrettifyLevel1VersionTuple(Level1VersionTuple tuple)
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{
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if(tuple?.Code != TupleCodes.CISTPL_VERS_1) return null;
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var sb = new StringBuilder();
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sb.AppendLine(Localization.PCMCIA_Level_1_Version_Product_Information_Tuple);
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sb.AppendFormat("\t" + Localization.Card_indicates_compliance_with_PC_Card_Standard_Release_0_1,
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tuple.MajorVersion,
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tuple.MinorVersion)
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.AppendLine();
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if(string.IsNullOrEmpty(tuple.Manufacturer))
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sb.AppendLine("\t" + Localization.No_manufacturer_information_string);
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else
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sb.AppendFormat(Localization.Manufacturer_0, tuple.Manufacturer).AppendLine();
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if(string.IsNullOrEmpty(tuple.Product))
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sb.AppendLine("\t" + Localization.No_product_name_string);
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else
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sb.AppendFormat(Localization.Product_name_0, tuple.Product).AppendLine();
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if(tuple.AdditionalInformation == null || tuple.AdditionalInformation.Length == 0)
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sb.AppendLine("\t" + Localization.No_additional_information);
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else
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{
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sb.AppendLine("\t" + Localization.Additional_information);
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foreach(string info in tuple.AdditionalInformation.Where(static info => !string.IsNullOrEmpty(info)))
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sb.Append($"\t\t{info}").AppendLine();
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}
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return sb.ToString();
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}
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public static string PrettifyLevel1VersionTuple(Tuple tuple) =>
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PrettifyLevel1VersionTuple(DecodeLevel1VersionTuple(tuple));
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public static string PrettifyLevel1VersionTuple(byte[] data) =>
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PrettifyLevel1VersionTuple(DecodeLevel1VersionTuple(data));
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} |