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105 lines
3.4 KiB
C#
105 lines
3.4 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Verify.cs
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// Author(s) : Rebecca Wallander <sakcheen@gmail.com>
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//
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// Component : Disc image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Verifies Redumper raw DVD dump images.
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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 © 2011-2026 Rebecca Wallander
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// ****************************************************************************/
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using System.Collections.Generic;
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using Aaru.CommonTypes.Enums;
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using Aaru.Decoders.DVD;
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namespace Aaru.Images;
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public sealed partial class Redumper
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{
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#region IOpticalMediaImage Members
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/// <inheritdoc />
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public bool? VerifySector(ulong sectorAddress)
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{
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long frameIndex = (long)sectorAddress - LBA_START;
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if(frameIndex < 0 || frameIndex >= _totalFrames) return null;
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if(MapState(_stateData[frameIndex]) != SectorStatus.Dumped) return null;
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byte[] dvdSector = ReadAndFlattenFrame(frameIndex);
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if(dvdSector is null) return null;
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if(IsNintendoMediaType(_imageInfo.MediaType))
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{
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byte[] work = (byte[])dvdSector.Clone();
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if(!DescrambleNintendo2064InPlace(work, (int)sectorAddress)) return null;
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dvdSector = work;
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}
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if(!Sector.CheckIed(dvdSector)) return false;
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return Sector.CheckEdc(dvdSector);
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}
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/// <inheritdoc />
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public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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{
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failingLbas = [];
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unknownLbas = [];
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for(ulong i = 0; i < length; i++)
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{
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bool? result = VerifySector(sectorAddress + i);
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switch(result)
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{
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case null:
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unknownLbas.Add(sectorAddress + i);
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break;
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case false:
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failingLbas.Add(sectorAddress + i);
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break;
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}
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}
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if(unknownLbas.Count > 0) return null;
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return failingLbas.Count <= 0;
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}
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/// <inheritdoc />
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public bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
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out List<ulong> unknownLbas) =>
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VerifySectors(sectorAddress, length, out failingLbas, out unknownLbas);
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#endregion
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} |