mirror of
https://github.com/aaru-dps/Aaru.git
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708 lines
27 KiB
C#
708 lines
27 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : SCSI.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Core algorithms.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Scan media from SCSI devices.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. 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.Threading;
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using Aaru.CommonTypes.Structs.Devices.SCSI;
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using Aaru.Core.Logging;
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using Aaru.Decoders.CD;
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using Aaru.Decoders.SCSI;
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using Aaru.Decoders.SCSI.MMC;
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using Aaru.Devices;
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using Aaru.Logging;
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using Humanizer;
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namespace Aaru.Core.Devices.Scanning;
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/// <summary>Implements scanning the media from an SCSI device</summary>
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public sealed partial class MediaScan
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{
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ScanResults Scsi()
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{
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var results = new ScanResults();
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MhddLog mhddLog;
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IbgLog ibgLog;
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ReadOnlySpan<byte> senseBuf;
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bool sense;
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uint blockSize = 0;
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ushort currentProfile = 0x0001;
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var foundReadCommand = false;
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var readcd = false;
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results.Blocks = 0;
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if(_dev.IsRemovable)
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{
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sense = _dev.ScsiTestUnitReady(out senseBuf, _dev.Timeout, out _);
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if(sense)
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{
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InitProgress?.Invoke();
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DecodedSense? decSense = Sense.Decode(senseBuf);
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if(decSense.HasValue)
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{
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switch(decSense.Value.ASC)
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{
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case 0x3A:
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{
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var leftRetries = 5;
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while(leftRetries > 0)
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{
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PulseProgress?.Invoke(Localization.Core.Waiting_for_drive_to_become_ready);
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Thread.Sleep(2000);
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sense = _dev.ScsiTestUnitReady(out senseBuf, _dev.Timeout, out _);
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if(!sense) break;
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leftRetries--;
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}
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if(sense)
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{
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StoppingErrorMessage?.Invoke(Localization.Core.Please_insert_media_in_drive);
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return results;
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}
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break;
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}
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case 0x04 when decSense.Value.ASCQ == 0x01:
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{
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var leftRetries = 10;
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while(leftRetries > 0)
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{
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PulseProgress?.Invoke(Localization.Core.Waiting_for_drive_to_become_ready);
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Thread.Sleep(2000);
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sense = _dev.ScsiTestUnitReady(out senseBuf, _dev.Timeout, out _);
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if(!sense) break;
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leftRetries--;
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}
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if(sense)
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{
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StoppingErrorMessage?.Invoke(string.Format(Localization.Core
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.Error_testing_unit_was_ready_0,
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Sense.PrettifySense(senseBuf.ToArray())));
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return results;
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}
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break;
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}
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// These should be trapped by the OS but seems in some cases they're not
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case 0x28:
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{
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var leftRetries = 10;
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while(leftRetries > 0)
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{
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PulseProgress?.Invoke(Localization.Core.Waiting_for_drive_to_become_ready);
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Thread.Sleep(2000);
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sense = _dev.ScsiTestUnitReady(out senseBuf, _dev.Timeout, out _);
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if(!sense) break;
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leftRetries--;
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}
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if(sense)
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{
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StoppingErrorMessage?.Invoke(string.Format(Localization.Core
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.Error_testing_unit_was_ready_0,
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Sense.PrettifySense(senseBuf.ToArray())));
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return results;
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}
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break;
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}
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default:
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StoppingErrorMessage?.Invoke(string.Format(Localization.Core.Error_testing_unit_was_ready_0,
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Sense.PrettifySense(senseBuf.ToArray())));
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return results;
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}
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}
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else
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{
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StoppingErrorMessage?.Invoke(Localization.Core.Unknown_sense_testing_unit_was_ready);
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return results;
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}
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EndProgress?.Invoke();
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}
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}
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Reader scsiReader = null;
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switch(_dev.ScsiType)
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{
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case PeripheralDeviceTypes.DirectAccess:
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case PeripheralDeviceTypes.MultiMediaDevice:
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case PeripheralDeviceTypes.OCRWDevice:
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case PeripheralDeviceTypes.OpticalDevice:
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case PeripheralDeviceTypes.SimplifiedDevice:
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case PeripheralDeviceTypes.WriteOnceDevice:
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scsiReader = new Reader(_dev, _dev.Timeout, null, null);
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results.Blocks = scsiReader.GetDeviceBlocks();
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foundReadCommand = !scsiReader.FindReadCommand();
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if(!foundReadCommand && _dev.ScsiType != PeripheralDeviceTypes.MultiMediaDevice)
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{
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StoppingErrorMessage?.Invoke(Localization.Core.Unable_to_read_medium);
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return results;
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}
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blockSize = scsiReader.LogicalBlockSize;
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if(results.Blocks != 0 && blockSize != 0)
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{
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results.Blocks++;
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UpdateStatus?.Invoke(string.Format(Localization.Core
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.Media_has_0_blocks_of_1_bytes_each_for_a_total_of_2,
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results.Blocks,
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blockSize,
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ByteSize.FromBytes(results.Blocks * blockSize)
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.ToString("0.000")));
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}
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break;
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case PeripheralDeviceTypes.SequentialAccess:
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StoppingErrorMessage?.Invoke(Localization.Core.Scanning_never_supported_in_SSC);
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return results;
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}
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if(results.Blocks == 0)
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{
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StoppingErrorMessage?.Invoke(Localization.Core.Unable_to_read_medium_or_empty_medium_present);
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return results;
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}
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var compactDisc = true;
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FullTOC.CDFullTOC? toc = null;
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if(_dev.ScsiType == PeripheralDeviceTypes.MultiMediaDevice)
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{
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sense = _dev.GetConfiguration(out byte[] cmdBuf,
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out senseBuf,
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0,
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MmcGetConfigurationRt.Current,
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_dev.Timeout,
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out _);
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if(!sense)
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{
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Features.SeparatedFeatures ftr = Features.Separate(cmdBuf);
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currentProfile = ftr.CurrentProfile;
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switch(ftr.CurrentProfile)
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{
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case 0x0005:
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case 0x0008:
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case 0x0009:
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case 0x000A:
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case 0x0020:
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case 0x0021:
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case 0x0022:
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break;
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default:
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compactDisc = false;
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break;
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}
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}
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if(compactDisc)
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{
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currentProfile = 0x0008;
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// We discarded all discs that falsify a TOC before requesting a real TOC
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// No TOC, no CD (or an empty one)
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bool tocSense = _dev.ReadRawToc(out cmdBuf, out senseBuf, 1, _dev.Timeout, out _);
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if(!tocSense) toc = FullTOC.Decode(cmdBuf);
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}
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}
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else
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compactDisc = false;
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scsiReader.GetBlocksToRead();
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uint blocksToRead;
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results.A = 0; // <3ms
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results.B = 0; // >=3ms, <10ms
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results.C = 0; // >=10ms, <50ms
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results.D = 0; // >=50ms, <150ms
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results.E = 0; // >=150ms, <500ms
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results.F = 0; // >=500ms
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results.Errored = 0;
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results.ProcessingTime = 0;
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results.TotalTime = 0;
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double currentSpeed = 0;
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results.MaxSpeed = double.MinValue;
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results.MinSpeed = double.MaxValue;
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results.UnreadableSectors = [];
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if(compactDisc)
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{
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blocksToRead = 64;
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if(toc == null)
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{
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StoppingErrorMessage?.Invoke(Localization.Core.Error_trying_to_decode_TOC);
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return results;
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}
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readcd = !_dev.ReadCd(out _,
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out senseBuf,
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0,
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2352,
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1,
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MmcSectorTypes.AllTypes,
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false,
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false,
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true,
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MmcHeaderCodes.AllHeaders,
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true,
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true,
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MmcErrorField.None,
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MmcSubchannel.None,
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_dev.Timeout,
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out _);
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if(readcd)
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UpdateStatus?.Invoke(Localization.Core.Using_MMC_READ_CD_command);
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else if(!foundReadCommand)
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{
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StoppingErrorMessage?.Invoke(Localization.Core.Unable_to_read_medium);
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return results;
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}
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_scanStopwatch.Restart();
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if(readcd)
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{
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while(true)
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{
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sense = _dev.ReadCd(out _,
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out senseBuf,
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0,
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2352,
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blocksToRead,
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MmcSectorTypes.AllTypes,
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false,
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false,
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true,
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MmcHeaderCodes.AllHeaders,
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true,
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true,
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MmcErrorField.None,
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MmcSubchannel.None,
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_dev.Timeout,
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out _);
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if(_dev.Error || sense) blocksToRead /= 2;
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if(!_dev.Error || blocksToRead == 1) break;
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}
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}
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if(_dev.Error)
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{
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StoppingErrorMessage?.Invoke(string.Format(Localization.Core
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.Device_error_0_trying_to_guess_ideal_transfer_length,
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_dev.LastError));
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return results;
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}
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UpdateStatus?.Invoke(string.Format(Localization.Core.Reading_0_sectors_at_a_time, blocksToRead));
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InitBlockMap?.Invoke(results.Blocks, blockSize, blocksToRead, currentProfile);
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mhddLog = new MhddLog(_mhddLogPath, _dev, results.Blocks, blockSize, blocksToRead, false);
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ibgLog = new IbgLog(_ibgLogPath, currentProfile);
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InitProgress?.Invoke();
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uint accumulatedSpeedSectors = 0;
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double accumulatedSpeedMs = 0;
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for(ulong i = 0; i < results.Blocks; i += blocksToRead)
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{
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if(_aborted) break;
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if(results.Blocks - i < blocksToRead) blocksToRead = (uint)(results.Blocks - i);
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if(currentSpeed > results.MaxSpeed && currentSpeed > 0) results.MaxSpeed = currentSpeed;
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if(currentSpeed < results.MinSpeed && currentSpeed > 0) results.MinSpeed = currentSpeed;
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UpdateProgress?.Invoke(string.Format(Localization.Core.Reading_sector_0_of_1_2,
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i,
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results.Blocks,
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ByteSize.FromMegabytes(currentSpeed).Per(_oneSecond).Humanize()),
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(long)i,
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(long)results.Blocks);
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_speedStopwatch.Restart();
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if(readcd)
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{
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sense = _dev.ReadCd(out _,
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out senseBuf,
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(uint)i,
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2352,
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blocksToRead,
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MmcSectorTypes.AllTypes,
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false,
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false,
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true,
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MmcHeaderCodes.AllHeaders,
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true,
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true,
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MmcErrorField.None,
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MmcSubchannel.None,
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_dev.Timeout,
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out double _);
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}
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else
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sense = scsiReader.ReadBlocks(out _, i, blocksToRead, out double _, out _, out _);
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_speedStopwatch.Stop();
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accumulatedSpeedMs += _speedStopwatch.Elapsed.TotalMilliseconds;
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accumulatedSpeedSectors += blocksToRead;
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results.ProcessingTime += _speedStopwatch.Elapsed.TotalMilliseconds;
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if(!sense)
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{
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switch(_speedStopwatch.Elapsed.TotalMilliseconds)
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{
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case >= 500:
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results.F += blocksToRead;
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break;
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case >= 150:
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results.E += blocksToRead;
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break;
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case >= 50:
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results.D += blocksToRead;
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break;
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case >= 10:
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results.C += blocksToRead;
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break;
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case >= 3:
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results.B += blocksToRead;
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break;
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default:
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results.A += blocksToRead;
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break;
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}
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ScanTime?.Invoke(i, _speedStopwatch.Elapsed.TotalMilliseconds);
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mhddLog.Write(i, _speedStopwatch.Elapsed.TotalMilliseconds);
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ibgLog.Write(i, currentSpeed * 1024);
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}
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else
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{
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DecodedSense? senseDecoded = null;
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if(readcd)
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{
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AaruLogging.Debug(MODULE_NAME,
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Localization.Core.READ_CD_error_0,
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Sense.PrettifySense(senseBuf.ToArray()));
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senseDecoded = Sense.Decode(senseBuf);
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if(senseDecoded.HasValue)
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// TODO: This error happens when changing from track type afaik. Need to solve that more cleanly
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// LOGICAL BLOCK ADDRESS OUT OF RANGE
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{
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if((senseDecoded.Value.ASC != 0x21 || senseDecoded.Value.ASCQ != 0x00) &&
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// ILLEGAL MODE FOR THIS TRACK (requesting sectors as-is, this is a firmware misconception when audio sectors
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// are in a track where subchannel indicates data)
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(senseDecoded.Value.ASC != 0x64 || senseDecoded.Value.ASCQ != 0x00))
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{
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results.Errored += blocksToRead;
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for(ulong b = i; b < i + blocksToRead; b++) results.UnreadableSectors.Add(b);
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ScanUnreadable?.Invoke(i);
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mhddLog.Write(i,
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_speedStopwatch.Elapsed.TotalMilliseconds < 500
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? 65535
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: _speedStopwatch.Elapsed.TotalMilliseconds);
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ibgLog.Write(i, 0);
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}
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}
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}
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if(!senseDecoded.HasValue)
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{
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ScanUnreadable?.Invoke(i);
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results.Errored += blocksToRead;
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for(ulong b = i; b < i + blocksToRead; b++) results.UnreadableSectors.Add(b);
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mhddLog.Write(i,
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_speedStopwatch.Elapsed.TotalMilliseconds < 500
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? 65535
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: _speedStopwatch.Elapsed.TotalMilliseconds);
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ibgLog.Write(i, 0);
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}
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}
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if(accumulatedSpeedMs < 100) continue;
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currentSpeed = accumulatedSpeedSectors * blockSize / (1048576 * (accumulatedSpeedMs / 1000.0));
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ScanSpeed?.Invoke(i, currentSpeed * 1024);
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accumulatedSpeedMs = 0;
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accumulatedSpeedSectors = 0;
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}
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_scanStopwatch.Stop();
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EndProgress?.Invoke();
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mhddLog.Close();
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currentSpeed = accumulatedSpeedSectors * blockSize / (1048576 * (accumulatedSpeedMs / 1000.0));
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// ReSharper disable once CompareOfFloatsByEqualityOperator
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if(results.MaxSpeed == double.MinValue) results.MaxSpeed = currentSpeed;
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// ReSharper disable once CompareOfFloatsByEqualityOperator
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if(results.MinSpeed == double.MaxValue) results.MinSpeed = currentSpeed;
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ibgLog.Close(_dev,
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results.Blocks,
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blockSize,
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_scanStopwatch.Elapsed.TotalSeconds,
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currentSpeed * 1024,
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blockSize * (double)(results.Blocks + 1) / 1024 / (results.ProcessingTime / 1000),
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_devicePath);
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}
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else
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{
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_scanStopwatch.Restart();
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UpdateStatus?.Invoke(string.Format(Localization.Core.Reading_0_sectors_at_a_time, scsiReader.BlocksToRead));
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InitBlockMap?.Invoke(results.Blocks, blockSize, scsiReader.BlocksToRead, currentProfile);
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mhddLog = new MhddLog(_mhddLogPath, _dev, results.Blocks, blockSize, scsiReader.BlocksToRead, false);
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ibgLog = new IbgLog(_ibgLogPath, currentProfile);
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InitProgress?.Invoke();
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uint accumulatedSpeedSectors = 0;
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double accumulatedSpeedMs = 0;
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for(ulong i = 0; i < results.Blocks; i += scsiReader.BlocksToRead)
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{
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if(_aborted) break;
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blocksToRead = scsiReader.BlocksToRead;
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if(results.Blocks - i < blocksToRead) blocksToRead = (uint)(results.Blocks - i);
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if(currentSpeed > results.MaxSpeed && currentSpeed > 0) results.MaxSpeed = currentSpeed;
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if(currentSpeed < results.MinSpeed && currentSpeed > 0) results.MinSpeed = currentSpeed;
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UpdateProgress?.Invoke(string.Format(Localization.Core.Reading_sector_0_of_1_2,
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i,
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results.Blocks,
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ByteSize.FromMegabytes(currentSpeed).Per(_oneSecond).Humanize()),
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(long)i,
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(long)results.Blocks);
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_speedStopwatch.Restart();
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sense = scsiReader.ReadBlocks(out _, i, blocksToRead, out double cmdDuration, out _, out _);
|
|
_speedStopwatch.Stop();
|
|
accumulatedSpeedMs += _speedStopwatch.Elapsed.TotalMilliseconds;
|
|
accumulatedSpeedSectors += blocksToRead;
|
|
results.ProcessingTime += _speedStopwatch.Elapsed.TotalMilliseconds;
|
|
|
|
if(!sense && !_dev.Error)
|
|
{
|
|
switch(_speedStopwatch.Elapsed.TotalMilliseconds)
|
|
{
|
|
case >= 500:
|
|
results.F += blocksToRead;
|
|
|
|
break;
|
|
case >= 150:
|
|
results.E += blocksToRead;
|
|
|
|
break;
|
|
case >= 50:
|
|
results.D += blocksToRead;
|
|
|
|
break;
|
|
case >= 10:
|
|
results.C += blocksToRead;
|
|
|
|
break;
|
|
case >= 3:
|
|
results.B += blocksToRead;
|
|
|
|
break;
|
|
default:
|
|
results.A += blocksToRead;
|
|
|
|
break;
|
|
}
|
|
|
|
ScanTime?.Invoke(i, _speedStopwatch.Elapsed.TotalMilliseconds);
|
|
mhddLog.Write(i, _speedStopwatch.Elapsed.TotalMilliseconds);
|
|
ibgLog.Write(i, currentSpeed * 1024);
|
|
}
|
|
|
|
// TODO: Separate errors on kind of errors.
|
|
else
|
|
{
|
|
ScanUnreadable?.Invoke(i);
|
|
results.Errored += blocksToRead;
|
|
|
|
for(ulong b = i; b < i + blocksToRead; b++) results.UnreadableSectors.Add(b);
|
|
|
|
mhddLog.Write(i, cmdDuration < 500 ? 65535 : _speedStopwatch.Elapsed.TotalMilliseconds);
|
|
ibgLog.Write(i, 0);
|
|
}
|
|
|
|
if(accumulatedSpeedMs < 100) continue;
|
|
currentSpeed = accumulatedSpeedSectors * blockSize / (1048576 * (accumulatedSpeedMs / 1000.0));
|
|
ScanSpeed?.Invoke(i, currentSpeed * 1024);
|
|
accumulatedSpeedMs = 0;
|
|
accumulatedSpeedSectors = 0;
|
|
}
|
|
|
|
_scanStopwatch.Stop();
|
|
EndProgress?.Invoke();
|
|
mhddLog.Close();
|
|
|
|
currentSpeed = accumulatedSpeedSectors * blockSize / (1048576 * (accumulatedSpeedMs / 1000.0));
|
|
|
|
ibgLog.Close(_dev,
|
|
results.Blocks,
|
|
blockSize,
|
|
_scanStopwatch.Elapsed.TotalSeconds,
|
|
currentSpeed * 1024,
|
|
blockSize * (double)(results.Blocks + 1) / 1024 / (results.ProcessingTime / 1000),
|
|
_devicePath);
|
|
}
|
|
|
|
results.SeekMax = double.MinValue;
|
|
results.SeekMin = double.MaxValue;
|
|
results.SeekTotal = 0;
|
|
const int seekTimes = 1000;
|
|
|
|
var rnd = new Random();
|
|
|
|
InitProgress?.Invoke();
|
|
|
|
for(var i = 0; i < seekTimes; i++)
|
|
{
|
|
if(_aborted || !_seekTest) break;
|
|
|
|
var seekPos = (uint)rnd.Next((int)results.Blocks);
|
|
|
|
PulseProgress?.Invoke(string.Format(Localization.Core.Seeking_to_sector_0, seekPos));
|
|
|
|
double seekCur;
|
|
|
|
if(scsiReader.CanSeek)
|
|
scsiReader.Seek(seekPos, out seekCur);
|
|
else if(readcd)
|
|
{
|
|
_dev.ReadCd(out _,
|
|
out _,
|
|
seekPos,
|
|
2352,
|
|
1,
|
|
MmcSectorTypes.AllTypes,
|
|
false,
|
|
false,
|
|
true,
|
|
MmcHeaderCodes.AllHeaders,
|
|
true,
|
|
true,
|
|
MmcErrorField.None,
|
|
MmcSubchannel.None,
|
|
_dev.Timeout,
|
|
out seekCur);
|
|
}
|
|
else
|
|
scsiReader.ReadBlock(out _, seekPos, out seekCur, out _, out _);
|
|
|
|
if(seekCur > results.SeekMax && seekCur > 0) results.SeekMax = seekCur;
|
|
|
|
if(seekCur < results.SeekMin && seekCur > 0) results.SeekMin = seekCur;
|
|
|
|
results.SeekTotal += seekCur;
|
|
GC.Collect();
|
|
}
|
|
|
|
EndProgress?.Invoke();
|
|
|
|
results.ProcessingTime /= 1000;
|
|
results.TotalTime = _scanStopwatch.Elapsed.TotalSeconds;
|
|
results.AvgSpeed = blockSize * (double)(results.Blocks + 1) / 1048576 / results.ProcessingTime;
|
|
results.SeekTimes = seekTimes;
|
|
|
|
return results;
|
|
}
|
|
} |