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612 lines
27 KiB
C#
612 lines
27 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : SecureDigital.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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// Dumps SecureDigital and MultiMediaCard flash cards.
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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 © 2011-2018 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.IO;
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using System.Linq;
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using System.Text;
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using System.Xml.Serialization;
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using DiscImageChef.Console;
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using DiscImageChef.Core.Logging;
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using DiscImageChef.Decoders.MMC;
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using DiscImageChef.Devices;
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using DiscImageChef.DiscImages;
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using DiscImageChef.Filters;
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using DiscImageChef.Metadata;
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using Extents;
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using Schemas;
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using MediaType = DiscImageChef.CommonTypes.MediaType;
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namespace DiscImageChef.Core.Devices.Dumping
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{
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/// <summary>
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/// Implements dumping a MultiMediaCard or SecureDigital flash card
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/// </summary>
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public class SecureDigital
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{
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/// <summary>
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/// Dumps a MultiMediaCard or SecureDigital flash card
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/// </summary>
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/// <param name="dev">Device</param>
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/// <param name="devicePath">Path to the device</param>
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/// <param name="outputPrefix">Prefix for output data files</param>
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/// <param name="outputPlugin">Plugin for output file</param>
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/// <param name="retryPasses">How many times to retry</param>
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/// <param name="force">Force to continue dump whenever possible</param>
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/// <param name="dumpRaw">Dump long or scrambled sectors</param>
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/// <param name="persistent">Store whatever data the drive returned on error</param>
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/// <param name="stopOnError">Stop dump on first error</param>
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/// <param name="resume">Information for dump resuming</param>
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/// <param name="dumpLog">Dump logger</param>
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/// <param name="encoding">Encoding to use when analyzing dump</param>
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/// <param name="outputPath">Path to output file</param>
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/// <param name="formatOptions">Formats to pass to output file plugin</param>
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/// <exception cref="ArgumentException">If you asked to dump long sectors from a SCSI Streaming device</exception>
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public static void Dump(Device dev, string devicePath, IWritableImage outputPlugin, ushort retryPasses,
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bool force, bool dumpRaw, bool persistent, bool stopOnError,
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ref Resume resume,
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ref
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DumpLog dumpLog, Encoding encoding, string outputPrefix, string outputPath,
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Dictionary<string, string>
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formatOptions)
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{
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bool aborted;
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if(dumpRaw)
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{
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DicConsole.ErrorWriteLine("Raw dumping is not supported in MultiMediaCard or SecureDigital devices.");
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if(force) DicConsole.ErrorWriteLine("Continuing...");
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else
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{
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DicConsole.ErrorWriteLine("Aborting...");
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return;
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}
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}
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bool sense;
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const ushort SD_PROFILE = 0x0001;
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const uint TIMEOUT = 5;
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double duration;
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uint blocksToRead = 128;
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uint blockSize = 512;
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ulong blocks = 0;
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byte[] csd = null;
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byte[] ocr = null;
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byte[] ecsd = null;
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byte[] scr = null;
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int physicalBlockSize = 0;
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bool byteAddressed = true;
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Dictionary<MediaTagType, byte[]> mediaTags = new Dictionary<MediaTagType, byte[]>();
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switch(dev.Type)
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{
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case DeviceType.MMC:
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{
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dumpLog.WriteLine("Reading Extended CSD");
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sense = dev.ReadExtendedCsd(out ecsd, out _, TIMEOUT, out duration);
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if(!sense)
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{
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ExtendedCSD ecsdDecoded = Decoders.MMC.Decoders.DecodeExtendedCSD(ecsd);
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blocksToRead = ecsdDecoded.OptimalReadSize;
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blocks = ecsdDecoded.SectorCount;
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blockSize = (uint)(ecsdDecoded.SectorSize == 1 ? 4096 : 512);
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if(ecsdDecoded.NativeSectorSize == 0) physicalBlockSize = 512;
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else if(ecsdDecoded.NativeSectorSize == 1)
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physicalBlockSize = 4096;
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// Supposing it's high-capacity MMC if it has Extended CSD...
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byteAddressed = false;
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mediaTags.Add(MediaTagType.MMC_ExtendedCSD, null);
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}
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else ecsd = null;
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dumpLog.WriteLine("Reading CSD");
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sense = dev.ReadCsd(out csd, out _, TIMEOUT, out duration);
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if(!sense)
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{
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if(blocks == 0)
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{
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CSD csdDecoded = Decoders.MMC.Decoders.DecodeCSD(csd);
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blocks =
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(ulong)((csdDecoded.Size + 1) * Math.Pow(2, csdDecoded.SizeMultiplier + 2));
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blockSize = (uint)Math.Pow(2, csdDecoded.ReadBlockLength);
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}
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mediaTags.Add(MediaTagType.MMC_CSD, null);
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}
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else csd = null;
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dumpLog.WriteLine("Reading OCR");
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sense = dev.ReadOcr(out ocr, out _, TIMEOUT, out duration);
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if(sense) ocr = null;
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else mediaTags.Add(MediaTagType.MMC_OCR, null);
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break;
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}
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case DeviceType.SecureDigital:
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{
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dumpLog.WriteLine("Reading CSD");
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sense = dev.ReadCsd(out csd, out _, TIMEOUT, out duration);
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if(!sense)
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{
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Decoders.SecureDigital.CSD csdDecoded = Decoders.SecureDigital.Decoders.DecodeCSD(csd);
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blocks = (ulong)(csdDecoded.Structure == 0
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? (csdDecoded.Size + 1) *
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Math.Pow(2, csdDecoded.SizeMultiplier + 2)
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: (csdDecoded.Size + 1) * 1024);
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blockSize = (uint)Math.Pow(2, csdDecoded.ReadBlockLength);
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// Structure >=1 for SDHC/SDXC, so that's block addressed
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byteAddressed = csdDecoded.Structure == 0;
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mediaTags.Add(MediaTagType.SD_CSD, null);
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}
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else csd = null;
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dumpLog.WriteLine("Reading OCR");
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sense = dev.ReadSdocr(out ocr, out _, TIMEOUT, out duration);
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if(sense) ocr = null;
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else mediaTags.Add(MediaTagType.SD_OCR, null);
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dumpLog.WriteLine("Reading SCR");
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sense = dev.ReadScr(out scr, out _, TIMEOUT, out duration);
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if(sense) scr = null;
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else mediaTags.Add(MediaTagType.SD_SCR, null);
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break;
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}
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}
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dumpLog.WriteLine("Reading CID");
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sense = dev.ReadCid(out byte[] cid, out _, TIMEOUT, out duration);
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if(sense) cid = null;
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else mediaTags.Add(dev.Type == DeviceType.SecureDigital ? MediaTagType.SD_CID : MediaTagType.MMC_CID, null);
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DateTime start;
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DateTime end;
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double totalDuration = 0;
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double totalChkDuration = 0;
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double currentSpeed = 0;
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double maxSpeed = double.MinValue;
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double minSpeed = double.MaxValue;
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aborted = false;
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System.Console.CancelKeyPress += (sender, e) => e.Cancel = aborted = true;
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if(blocks == 0)
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{
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dumpLog.WriteLine("Cannot get device size.");
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DicConsole.ErrorWriteLine("Unable to get device size.");
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return;
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}
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dumpLog.WriteLine("Device reports {0} blocks.", blocks);
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byte[] cmdBuf;
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bool error;
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while(true)
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{
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error = dev.Read(out cmdBuf, out _, 0, blockSize, blocksToRead, byteAddressed, TIMEOUT, out duration);
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if(error) blocksToRead /= 2;
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if(!error || blocksToRead == 1) break;
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}
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if(error)
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{
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dumpLog.WriteLine("ERROR: Cannot get blocks to read, device error {0}.", dev.LastError);
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DicConsole.ErrorWriteLine("Device error {0} trying to guess ideal transfer length.", dev.LastError);
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return;
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}
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dumpLog.WriteLine("Device can read {0} blocks at a time.", blocksToRead);
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DumpHardwareType currentTry = null;
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ExtentsULong extents = null;
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ResumeSupport.Process(true, false, blocks, dev.Manufacturer, dev.Model, dev.Serial, dev.PlatformId,
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ref resume, ref currentTry, ref extents);
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if(currentTry == null || extents == null)
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throw new InvalidOperationException("Could not process resume file, not continuing...");
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bool ret = true;
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foreach(MediaTagType tag in mediaTags.Keys)
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{
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if(outputPlugin.SupportedMediaTags.Contains(tag)) continue;
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ret = false;
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dumpLog.WriteLine($"Output format does not support {tag}.");
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DicConsole.ErrorWriteLine($"Output format does not support {tag}.");
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}
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if(!ret)
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{
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dumpLog.WriteLine("Several media tags not supported, {0}continuing...", force ? "" : "not ");
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DicConsole.ErrorWriteLine("Several media tags not supported, {0}continuing...", force ? "" : "not ");
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if(!force) return;
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}
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DicConsole.WriteLine("Reading {0} sectors at a time.", blocksToRead);
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MhddLog mhddLog = new MhddLog(outputPrefix + ".mhddlog.bin", dev, blocks, blockSize, blocksToRead);
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IbgLog ibgLog = new IbgLog(outputPrefix + ".ibg", SD_PROFILE);
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ret = outputPlugin.Create(outputPath,
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dev.Type == DeviceType.SecureDigital
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? MediaType.SecureDigital
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: MediaType.MMC,
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formatOptions, blocks, blockSize);
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// Cannot create image
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if(!ret)
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{
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dumpLog.WriteLine("Error creating output image, not continuing.");
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dumpLog.WriteLine(outputPlugin.ErrorMessage);
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DicConsole.ErrorWriteLine("Error creating output image, not continuing.");
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DicConsole.ErrorWriteLine(outputPlugin.ErrorMessage);
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return;
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}
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if(resume.NextBlock > 0) dumpLog.WriteLine("Resuming from block {0}.", resume.NextBlock);
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start = DateTime.UtcNow;
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for(ulong i = resume.NextBlock; i < blocks; i += blocksToRead)
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{
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if(aborted)
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{
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currentTry.Extents = ExtentsConverter.ToMetadata(extents);
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dumpLog.WriteLine("Aborted!");
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break;
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}
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if(blocks - i < blocksToRead) blocksToRead = (byte)(blocks - i);
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#pragma warning disable RECS0018 // Comparison of floating point numbers with equality operator
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if(currentSpeed > maxSpeed && currentSpeed != 0) maxSpeed = currentSpeed;
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if(currentSpeed < minSpeed && currentSpeed != 0) minSpeed = currentSpeed;
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#pragma warning restore RECS0018 // Comparison of floating point numbers with equality operator
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DicConsole.Write("\rReading sector {0} of {1} ({2:F3} MiB/sec.)", i, blocks, currentSpeed);
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error = dev.Read(out cmdBuf, out _, (uint)i, blockSize, blocksToRead, byteAddressed, TIMEOUT,
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out duration);
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if(!error)
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{
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mhddLog.Write(i, duration);
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ibgLog.Write(i, currentSpeed * 1024);
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outputPlugin.WriteSectors(cmdBuf, i, blocksToRead);
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extents.Add(i, blocksToRead, true);
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}
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else
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{
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for(ulong b = i; b < i + blocksToRead; b++) resume.BadBlocks.Add(b);
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mhddLog.Write(i, duration < 500 ? 65535 : duration);
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ibgLog.Write(i, 0);
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outputPlugin.WriteSectors(new byte[blockSize * blocksToRead], i, blocksToRead);
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dumpLog.WriteLine("Error reading {0} blocks from block {1}.", blocksToRead, i);
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}
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double newSpeed =
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(double)blockSize * blocksToRead / 1048576 / (duration / 1000);
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if(!double.IsInfinity(newSpeed)) currentSpeed = newSpeed;
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resume.NextBlock = i + blocksToRead;
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}
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end = DateTime.Now;
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DicConsole.WriteLine();
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mhddLog.Close();
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ibgLog.Close(dev, blocks, blockSize, (end - start).TotalSeconds, currentSpeed * 1024,
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blockSize * (double)(blocks + 1) /
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1024 / (totalDuration / 1000), devicePath);
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dumpLog.WriteLine("Dump finished in {0} seconds.",
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(end - start).TotalSeconds);
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dumpLog.WriteLine("Average dump speed {0:F3} KiB/sec.",
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(double)blockSize * (double)(blocks + 1) / 1024 / (totalDuration / 1000));
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#region Error handling
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if(resume.BadBlocks.Count > 0 && !aborted)
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{
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int pass = 0;
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bool forward = true;
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bool runningPersistent = false;
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repeatRetryLba:
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ulong[] tmpArray = resume.BadBlocks.ToArray();
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foreach(ulong badSector in tmpArray)
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{
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if(aborted)
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{
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currentTry.Extents = ExtentsConverter.ToMetadata(extents);
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dumpLog.WriteLine("Aborted!");
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break;
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}
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DicConsole.Write("\rRetrying sector {0}, pass {1}, {3}{2}", badSector, pass + 1,
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forward ? "forward" : "reverse",
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runningPersistent ? "recovering partial data, " : "");
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error = dev.Read(out cmdBuf, out _, (uint)badSector, blockSize, 1, byteAddressed, TIMEOUT,
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out duration);
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totalDuration += duration;
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if(!error)
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{
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resume.BadBlocks.Remove(badSector);
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extents.Add(badSector);
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outputPlugin.WriteSector(cmdBuf, badSector);
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dumpLog.WriteLine("Correctly retried block {0} in pass {1}.", badSector, pass);
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}
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else if(runningPersistent)
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outputPlugin.WriteSector(cmdBuf, badSector);
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}
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if(pass < retryPasses && !aborted && resume.BadBlocks.Count > 0)
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{
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pass++;
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forward = !forward;
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resume.BadBlocks.Sort();
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resume.BadBlocks.Reverse();
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goto repeatRetryLba;
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}
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DicConsole.WriteLine();
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}
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#endregion Error handling
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currentTry.Extents = ExtentsConverter.ToMetadata(extents);
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dumpLog.WriteLine("Closing output file.");
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DicConsole.WriteLine("Closing output file.");
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outputPlugin.Close();
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if(aborted)
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{
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dumpLog.WriteLine("Aborted!");
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return;
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}
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dumpLog.WriteLine("Creating sidecar.");
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FiltersList filters = new FiltersList();
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IFilter filter = filters.GetFilter(outputPath);
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IMediaImage inputPlugin = ImageFormat.Detect(filter);
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if(!inputPlugin.Open(filter)) throw new ArgumentException("Could not open created image.");
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DateTime chkStart = DateTime.UtcNow;
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CICMMetadataType sidecar = Sidecar.Create(inputPlugin, outputPath, filter.Id, encoding);
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switch(dev.Type)
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{
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case DeviceType.MMC:
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sidecar.BlockMedia[0].MultiMediaCard = new MultiMediaCardType();
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break;
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case DeviceType.SecureDigital:
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sidecar.BlockMedia[0].SecureDigital = new SecureDigitalType();
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break;
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}
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DumpType cidDump = null;
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DumpType csdDump = null;
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DumpType ocrDump = null;
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if(cid != null)
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{
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cidDump = new DumpType
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{
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Image = outputPath,
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Size = cid.Length,
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Checksums = Checksum.GetChecksums(cid).ToArray()
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};
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ret =
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outputPlugin.WriteMediaTag(cid,
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dev.Type == DeviceType.SecureDigital
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? MediaTagType.SD_CID
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: MediaTagType.MMC_CID);
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// Cannot write CID to image
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if(!ret && !force)
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{
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dumpLog.WriteLine("Cannot write CID to output image.");
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throw new ArgumentException(outputPlugin.ErrorMessage);
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}
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}
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if(csd != null)
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{
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csdDump = new DumpType
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{
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Image = outputPath,
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Size = csd.Length,
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Checksums = Checksum.GetChecksums(csd).ToArray()
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};
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ret =
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outputPlugin.WriteMediaTag(csd,
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dev.Type == DeviceType.SecureDigital
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? MediaTagType.SD_CSD
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: MediaTagType.MMC_CSD);
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// Cannot write CSD to image
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if(!ret && !force)
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{
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dumpLog.WriteLine("Cannot write CSD to output image.");
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throw new ArgumentException(outputPlugin.ErrorMessage);
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}
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}
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if(ecsd != null)
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{
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sidecar.BlockMedia[0].MultiMediaCard.ExtendedCSD = new DumpType
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{
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Image = outputPath,
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Size = ecsd.Length,
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Checksums = Checksum.GetChecksums(ecsd).ToArray()
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};
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ret = outputPlugin.WriteMediaTag(ecsd, MediaTagType.MMC_ExtendedCSD);
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// Cannot write Extended CSD to image
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if(!ret && !force)
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{
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dumpLog.WriteLine("Cannot write Extended CSD to output image.");
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throw new ArgumentException(outputPlugin.ErrorMessage);
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}
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}
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if(ocr != null)
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{
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ocrDump = new DumpType
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{
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Image = outputPath,
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Size = ocr.Length,
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Checksums = Checksum.GetChecksums(ocr).ToArray()
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};
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ret =
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outputPlugin.WriteMediaTag(ocr,
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dev.Type == DeviceType.SecureDigital
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? MediaTagType.SD_OCR
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: MediaTagType.MMC_OCR);
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// Cannot write OCR to image
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if(!ret && !force)
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{
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dumpLog.WriteLine("Cannot write OCR to output image.");
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throw new ArgumentException(outputPlugin.ErrorMessage);
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}
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}
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if(scr != null)
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{
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sidecar.BlockMedia[0].SecureDigital.SCR = new DumpType
|
|
{
|
|
Image = outputPath,
|
|
Size = scr.Length,
|
|
Checksums = Checksum.GetChecksums(scr).ToArray()
|
|
};
|
|
|
|
ret = outputPlugin.WriteMediaTag(scr, MediaTagType.SD_SCR);
|
|
|
|
// Cannot write SCR to image
|
|
if(!ret && !force)
|
|
{
|
|
dumpLog.WriteLine("Cannot write SCR to output image.");
|
|
throw new ArgumentException(outputPlugin.ErrorMessage);
|
|
}
|
|
}
|
|
|
|
switch(dev.Type)
|
|
{
|
|
case DeviceType.MMC:
|
|
sidecar.BlockMedia[0].MultiMediaCard.CID = cidDump;
|
|
sidecar.BlockMedia[0].MultiMediaCard.CSD = csdDump;
|
|
sidecar.BlockMedia[0].MultiMediaCard.OCR = ocrDump;
|
|
break;
|
|
case DeviceType.SecureDigital:
|
|
sidecar.BlockMedia[0].SecureDigital.CID = cidDump;
|
|
sidecar.BlockMedia[0].SecureDigital.CSD = csdDump;
|
|
sidecar.BlockMedia[0].SecureDigital.OCR = ocrDump;
|
|
break;
|
|
}
|
|
|
|
end = DateTime.UtcNow;
|
|
|
|
totalChkDuration = (end - chkStart).TotalMilliseconds;
|
|
dumpLog.WriteLine("Sidecar created in {0} seconds.", (end - chkStart).TotalSeconds);
|
|
dumpLog.WriteLine("Average checksum speed {0:F3} KiB/sec.",
|
|
(double)blockSize * (double)(blocks + 1) / 1024 / (totalChkDuration / 1000));
|
|
|
|
string xmlDskTyp = null, xmlDskSubTyp = null;
|
|
switch(dev.Type)
|
|
{
|
|
case DeviceType.MMC:
|
|
Metadata.MediaType.MediaTypeToString(MediaType.MMC, out xmlDskTyp, out xmlDskSubTyp);
|
|
sidecar.BlockMedia[0].Dimensions = Dimensions.DimensionsFromMediaType(MediaType.MMC);
|
|
break;
|
|
case DeviceType.SecureDigital:
|
|
Metadata.MediaType.MediaTypeToString(MediaType.SecureDigital, out xmlDskTyp, out xmlDskSubTyp);
|
|
sidecar.BlockMedia[0].Dimensions = Dimensions.DimensionsFromMediaType(MediaType.SecureDigital);
|
|
break;
|
|
}
|
|
|
|
sidecar.BlockMedia[0].DiskType = xmlDskTyp;
|
|
sidecar.BlockMedia[0].DiskSubType = xmlDskSubTyp;
|
|
// TODO: Implement device firmware revision
|
|
sidecar.BlockMedia[0].LogicalBlocks = (long)blocks;
|
|
sidecar.BlockMedia[0].PhysicalBlockSize = physicalBlockSize > 0 ? physicalBlockSize : (int)blockSize;
|
|
sidecar.BlockMedia[0].LogicalBlockSize = (int)blockSize;
|
|
sidecar.BlockMedia[0].Manufacturer = dev.Manufacturer;
|
|
sidecar.BlockMedia[0].Model = dev.Model;
|
|
sidecar.BlockMedia[0].Serial = dev.Serial;
|
|
sidecar.BlockMedia[0].Size = (long)(blocks * blockSize);
|
|
|
|
DicConsole.WriteLine();
|
|
|
|
DicConsole.WriteLine("Took a total of {0:F3} seconds ({1:F3} processing commands, {2:F3} checksumming).",
|
|
(end - start).TotalSeconds, totalDuration / 1000, totalChkDuration / 1000);
|
|
DicConsole.WriteLine("Avegare speed: {0:F3} MiB/sec.",
|
|
(double)blockSize * (double)(blocks + 1) / 1048576 / (totalDuration / 1000));
|
|
DicConsole.WriteLine("Fastest speed burst: {0:F3} MiB/sec.", maxSpeed);
|
|
DicConsole.WriteLine("Slowest speed burst: {0:F3} MiB/sec.", minSpeed);
|
|
DicConsole.WriteLine("{0} sectors could not be read.", resume.BadBlocks.Count);
|
|
if(resume.BadBlocks.Count > 0) resume.BadBlocks.Sort();
|
|
DicConsole.WriteLine();
|
|
|
|
if(!aborted)
|
|
{
|
|
DicConsole.WriteLine("Writing metadata sidecar");
|
|
|
|
FileStream xmlFs = new FileStream(outputPrefix + ".cicm.xml", FileMode.Create);
|
|
|
|
XmlSerializer xmlSer = new XmlSerializer(typeof(CICMMetadataType));
|
|
xmlSer.Serialize(xmlFs, sidecar);
|
|
xmlFs.Close();
|
|
}
|
|
|
|
switch(dev.Type)
|
|
{
|
|
case DeviceType.MMC:
|
|
Statistics.AddMedia(MediaType.MMC, true);
|
|
break;
|
|
case DeviceType.SecureDigital:
|
|
Statistics.AddMedia(MediaType.SecureDigital, true);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} |