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124 lines
4.2 KiB
C#
124 lines
4.2 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : CPRM.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 CPRM structures.
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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;
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using System.Diagnostics.CodeAnalysis;
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using System.Text;
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using Aaru.Helpers;
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namespace Aaru.Decoders.SCSI.MMC;
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// Information from the following standards:
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// ANSI X3.304-1997
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// T10/1048-D revision 9.0
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// T10/1048-D revision 10a
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// T10/1228-D revision 7.0c
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// T10/1228-D revision 11a
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// T10/1363-D revision 10g
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// T10/1545-D revision 1d
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// T10/1545-D revision 5
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// T10/1545-D revision 5a
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// T10/1675-D revision 2c
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// T10/1675-D revision 4
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// T10/1836-D revision 2g
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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", "NotAccessedField.Global")]
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[SuppressMessage("ReSharper", "UnusedMember.Global")]
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[SuppressMessage("ReSharper", "UnusedType.Global")]
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public static class CPRM
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{
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public static CPRMMediaKeyBlock? DecodeCPRMMediaKeyBlock(byte[] CPRMMKBResponse)
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{
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if(CPRMMKBResponse == null)
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return null;
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var decoded = new CPRMMediaKeyBlock
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{
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MKBPackData = new byte[CPRMMKBResponse.Length - 4],
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DataLength = BigEndianBitConverter.ToUInt16(CPRMMKBResponse, 0),
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Reserved = CPRMMKBResponse[2],
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TotalPacks = CPRMMKBResponse[3]
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};
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Array.Copy(CPRMMKBResponse, 4, decoded.MKBPackData, 0, CPRMMKBResponse.Length - 4);
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return decoded;
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}
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public static string PrettifyCPRMMediaKeyBlock(CPRMMediaKeyBlock? CPRMMKBResponse)
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{
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if(CPRMMKBResponse == null)
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return null;
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CPRMMediaKeyBlock response = CPRMMKBResponse.Value;
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var sb = new StringBuilder();
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#if DEBUG
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if(response.Reserved != 0)
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sb.AppendFormat(Localization.Reserved_equals_0_X2, response.Reserved).AppendLine();
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#endif
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sb.AppendFormat(Localization.Total_number_of_CPRM_Media_Key_Blocks_available_to_transfer_0,
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response.TotalPacks).
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AppendLine();
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sb.AppendFormat(Localization.CPRM_Media_Key_Blocks_in_hex_follows);
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sb.AppendLine(PrintHex.ByteArrayToHexArrayString(response.MKBPackData, 80));
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return sb.ToString();
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}
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public static string PrettifyCPRMMediaKeyBlock(byte[] CPRMMKBResponse)
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{
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CPRMMediaKeyBlock? decoded = DecodeCPRMMediaKeyBlock(CPRMMKBResponse);
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return PrettifyCPRMMediaKeyBlock(decoded);
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}
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#region Nested type: CPRMMediaKeyBlock
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public struct CPRMMediaKeyBlock
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{
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/// <summary>Bytes 0 to 1 Data Length</summary>
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public ushort DataLength;
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/// <summary>Byte 2 Reserved</summary>
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public byte Reserved;
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/// <summary>Byte 3 Number of MKB packs available to transfer</summary>
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public byte TotalPacks;
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/// <summary>Byte 4 MKB Packs</summary>
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public byte[] MKBPackData;
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}
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#endregion
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} |