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325 lines
18 KiB
C#
325 lines
18 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : Command.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Direct device access.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// High level commands used to directly access devices.
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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 internal 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 internal 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 © 2011-2018 Natalia Portillo
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// ****************************************************************************/
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using System;
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using DiscImageChef.Decoders.ATA;
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using DiscImageChef.Interop;
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using Microsoft.Win32.SafeHandles;
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namespace DiscImageChef.Devices
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{
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static class Command
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{
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/// <summary>
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/// Sends a SCSI command
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/// </summary>
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/// <returns>0 if no error occurred, otherwise, errno</returns>
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/// <param name="fd">File handle</param>
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/// <param name="cdb">SCSI CDB</param>
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/// <param name="buffer">Buffer for SCSI command response</param>
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/// <param name="senseBuffer">Buffer with the SCSI sense</param>
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/// <param name="timeout">Timeout in seconds</param>
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/// <param name="direction">SCSI command transfer direction</param>
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/// <param name="duration">Time it took to execute the command in milliseconds</param>
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/// <param name="sense"><c>True</c> if SCSI error returned non-OK status and <paramref name="senseBuffer"/> contains SCSI sense</param>
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internal static int SendScsiCommand(object fd, byte[] cdb, ref byte[] buffer, out byte[] senseBuffer,
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uint timeout, ScsiDirection direction, out double duration, out bool sense)
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{
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Interop.PlatformID ptId = DetectOS.GetRealPlatformID();
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return SendScsiCommand(ptId, fd, cdb, ref buffer, out senseBuffer, timeout, direction, out duration,
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out sense);
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}
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/// <summary>
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/// Sends a SCSI command
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/// </summary>
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/// <returns>0 if no error occurred, otherwise, errno</returns>
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/// <param name="ptId">Platform ID for executing the command</param>
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/// <param name="fd">File handle</param>
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/// <param name="cdb">SCSI CDB</param>
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/// <param name="buffer">Buffer for SCSI command response</param>
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/// <param name="senseBuffer">Buffer with the SCSI sense</param>
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/// <param name="timeout">Timeout in seconds</param>
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/// <param name="direction">SCSI command transfer direction</param>
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/// <param name="duration">Time it took to execute the command in milliseconds</param>
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/// <param name="sense"><c>True</c> if SCSI error returned non-OK status and <paramref name="senseBuffer"/> contains SCSI sense</param>
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internal static int SendScsiCommand(Interop.PlatformID ptId, object fd, byte[] cdb, ref byte[] buffer,
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out byte[] senseBuffer, uint timeout, ScsiDirection direction,
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out double duration, out bool sense)
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{
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switch(ptId)
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{
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case Interop.PlatformID.Win32NT:
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{
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Windows.ScsiIoctlDirection dir;
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switch(direction)
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{
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case ScsiDirection.In:
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dir = Windows.ScsiIoctlDirection.In;
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break;
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case ScsiDirection.Out:
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dir = Windows.ScsiIoctlDirection.Out;
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break;
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default:
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dir = Windows.ScsiIoctlDirection.Unspecified;
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break;
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}
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return Windows.Command.SendScsiCommand((SafeFileHandle)fd, cdb, ref buffer, out senseBuffer,
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timeout, dir, out duration, out sense);
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}
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case Interop.PlatformID.Linux:
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{
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Linux.ScsiIoctlDirection dir;
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switch(direction)
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{
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case ScsiDirection.In:
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dir = Linux.ScsiIoctlDirection.In;
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break;
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case ScsiDirection.Out:
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dir = Linux.ScsiIoctlDirection.Out;
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break;
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case ScsiDirection.Bidirectional:
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dir = Linux.ScsiIoctlDirection.Unspecified;
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break;
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case ScsiDirection.None:
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dir = Linux.ScsiIoctlDirection.None;
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break;
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default:
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dir = Linux.ScsiIoctlDirection.Unknown;
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break;
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}
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return Linux.Command.SendScsiCommand((int)fd, cdb, ref buffer, out senseBuffer, timeout, dir,
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out duration, out sense);
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}
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case Interop.PlatformID.FreeBSD:
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{
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FreeBSD.CcbFlags flags = 0;
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switch(direction)
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{
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case ScsiDirection.In:
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flags = FreeBSD.CcbFlags.CamDirIn;
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break;
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case ScsiDirection.Out:
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flags = FreeBSD.CcbFlags.CamDirOut;
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break;
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case ScsiDirection.Bidirectional:
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flags = FreeBSD.CcbFlags.CamDirBoth;
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break;
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case ScsiDirection.None:
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flags = FreeBSD.CcbFlags.CamDirNone;
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break;
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}
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return IntPtr.Size == 8
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? FreeBSD.Command.SendScsiCommand64((IntPtr)fd, cdb, ref buffer, out senseBuffer,
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timeout, flags, out duration, out sense)
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: FreeBSD.Command.SendScsiCommand((IntPtr)fd, cdb, ref buffer, out senseBuffer, timeout,
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flags, out duration, out sense);
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}
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default: throw new InvalidOperationException(string.Format("Platform {0} not yet supported.", ptId));
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}
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}
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internal static int SendAtaCommand(object fd, AtaRegistersCHS registers, out AtaErrorRegistersCHS errorRegisters,
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AtaProtocol protocol, AtaTransferRegister transferRegister, ref byte[] buffer,
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uint timeout, bool transferBlocks, out double duration, out bool sense)
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{
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Interop.PlatformID ptId = DetectOS.GetRealPlatformID();
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return SendAtaCommand(ptId, fd, registers, out errorRegisters, protocol, transferRegister, ref buffer,
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timeout, transferBlocks, out duration, out sense);
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}
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internal static int SendAtaCommand(Interop.PlatformID ptId, object fd, AtaRegistersCHS registers,
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out AtaErrorRegistersCHS errorRegisters, AtaProtocol protocol,
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AtaTransferRegister transferRegister, ref byte[] buffer, uint timeout,
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bool transferBlocks, out double duration, out bool sense)
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{
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switch(ptId)
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{
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case Interop.PlatformID.Win32NT:
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{
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if(Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 1 &&
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(Environment.OSVersion.ServicePack == "Service Pack 1" ||
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Environment.OSVersion.ServicePack == "") || Environment.OSVersion.Version.Major == 5 &&
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Environment.OSVersion.Version.Minor == 0)
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return Windows.Command.SendIdeCommand((SafeFileHandle)fd, registers, out errorRegisters,
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protocol, ref buffer, timeout, out duration, out sense);
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// Windows NT 4 or earlier, requires special ATA pass thru SCSI. But DiscImageChef cannot run there (or can it?)
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if(Environment.OSVersion.Version.Major <= 4)
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throw new InvalidOperationException("Windows NT 4.0 or earlier is not supported.");
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return Windows.Command.SendAtaCommand((SafeFileHandle)fd, registers, out errorRegisters, protocol,
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ref buffer, timeout, out duration, out sense);
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}
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case Interop.PlatformID.Linux:
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{
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return Linux.Command.SendAtaCommand((int)fd, registers, out errorRegisters, protocol,
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transferRegister, ref buffer, timeout, transferBlocks,
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out duration, out sense);
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}
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case Interop.PlatformID.FreeBSD:
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{
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return FreeBSD.Command.SendAtaCommand((IntPtr)fd, registers, out errorRegisters, protocol,
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ref buffer, timeout, out duration, out sense);
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}
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default: throw new InvalidOperationException(string.Format("Platform {0} not yet supported.", ptId));
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}
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}
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internal static int SendAtaCommand(object fd, AtaRegistersLBA28 registers,
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out AtaErrorRegistersLBA28 errorRegisters, AtaProtocol protocol,
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AtaTransferRegister transferRegister, ref byte[] buffer, uint timeout,
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bool transferBlocks, out double duration, out bool sense)
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{
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Interop.PlatformID ptId = DetectOS.GetRealPlatformID();
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return SendAtaCommand(ptId, fd, registers, out errorRegisters, protocol, transferRegister, ref buffer,
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timeout, transferBlocks, out duration, out sense);
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}
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internal static int SendAtaCommand(Interop.PlatformID ptId, object fd, AtaRegistersLBA28 registers,
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out AtaErrorRegistersLBA28 errorRegisters, AtaProtocol protocol,
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AtaTransferRegister transferRegister, ref byte[] buffer, uint timeout,
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bool transferBlocks, out double duration, out bool sense)
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{
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switch(ptId)
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{
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case Interop.PlatformID.Win32NT:
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{
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if(Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 1 &&
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(Environment.OSVersion.ServicePack == "Service Pack 1" ||
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Environment.OSVersion.ServicePack == "") || Environment.OSVersion.Version.Major == 5 &&
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Environment.OSVersion.Version.Minor == 0)
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return Windows.Command.SendIdeCommand((SafeFileHandle)fd, registers, out errorRegisters,
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protocol, ref buffer, timeout, out duration, out sense);
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// Windows NT 4 or earlier, requires special ATA pass thru SCSI. But DiscImageChef cannot run there (or can it?)
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if(Environment.OSVersion.Version.Major <= 4)
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throw new InvalidOperationException("Windows NT 4.0 or earlier is not supported.");
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return Windows.Command.SendAtaCommand((SafeFileHandle)fd, registers, out errorRegisters, protocol,
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ref buffer, timeout, out duration, out sense);
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}
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case Interop.PlatformID.Linux:
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{
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return Linux.Command.SendAtaCommand((int)fd, registers, out errorRegisters, protocol,
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transferRegister, ref buffer, timeout, transferBlocks,
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out duration, out sense);
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}
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case Interop.PlatformID.FreeBSD:
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{
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return FreeBSD.Command.SendAtaCommand((IntPtr)fd, registers, out errorRegisters, protocol,
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ref buffer, timeout, out duration, out sense);
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}
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default: throw new InvalidOperationException(string.Format("Platform {0} not yet supported.", ptId));
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}
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}
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internal static int SendAtaCommand(object fd, AtaRegistersLBA48 registers,
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out AtaErrorRegistersLBA48 errorRegisters, AtaProtocol protocol,
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AtaTransferRegister transferRegister, ref byte[] buffer, uint timeout,
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bool transferBlocks, out double duration, out bool sense)
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{
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Interop.PlatformID ptId = DetectOS.GetRealPlatformID();
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return SendAtaCommand(ptId, fd, registers, out errorRegisters, protocol, transferRegister, ref buffer,
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timeout, transferBlocks, out duration, out sense);
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}
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internal static int SendAtaCommand(Interop.PlatformID ptId, object fd, AtaRegistersLBA48 registers,
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out AtaErrorRegistersLBA48 errorRegisters, AtaProtocol protocol,
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AtaTransferRegister transferRegister, ref byte[] buffer, uint timeout,
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bool transferBlocks, out double duration, out bool sense)
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{
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switch(ptId)
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{
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case Interop.PlatformID.Win32NT:
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{
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// No check for Windows version. A 48-bit ATA disk simply does not work on earlier systems
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return Windows.Command.SendAtaCommand((SafeFileHandle)fd, registers, out errorRegisters, protocol,
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ref buffer, timeout, out duration, out sense);
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}
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case Interop.PlatformID.Linux:
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{
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return Linux.Command.SendAtaCommand((int)fd, registers, out errorRegisters, protocol,
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transferRegister, ref buffer, timeout, transferBlocks,
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out duration, out sense);
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}
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case Interop.PlatformID.FreeBSD:
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{
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return FreeBSD.Command.SendAtaCommand((IntPtr)fd, registers, out errorRegisters, protocol,
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ref buffer, timeout, out duration, out sense);
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}
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default: throw new InvalidOperationException(string.Format("Platform {0} not yet supported.", ptId));
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}
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}
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internal static int SendMmcCommand(object fd, MmcCommands command, bool write, bool isApplication, MmcFlags flags,
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uint argument, uint blockSize, uint blocks, ref byte[] buffer,
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out uint[] response, out double duration, out bool sense, uint timeout = 0)
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{
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Interop.PlatformID ptId = DetectOS.GetRealPlatformID();
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return SendMmcCommand(ptId, (int)fd, command, write, isApplication, flags, argument, blockSize, blocks,
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ref buffer, out response, out duration, out sense, timeout);
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}
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internal static int SendMmcCommand(Interop.PlatformID ptId, object fd, MmcCommands command, bool write,
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bool isApplication, MmcFlags flags, uint argument, uint blockSize, uint blocks,
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ref byte[] buffer, out uint[] response, out double duration, out bool sense,
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uint timeout = 0)
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{
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switch(ptId)
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{
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case Interop.PlatformID.Win32NT:
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{
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return Windows.Command.SendMmcCommand((SafeFileHandle)fd, command, write, isApplication, flags,
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argument, blockSize, blocks, ref buffer, out response,
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out duration, out sense, timeout);
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}
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case Interop.PlatformID.Linux:
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{
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return Linux.Command.SendMmcCommand((int)fd, command, write, isApplication, flags, argument,
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blockSize, blocks, ref buffer, out response, out duration,
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out sense, timeout);
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}
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default: throw new InvalidOperationException(string.Format("Platform {0} not yet supported.", ptId));
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}
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}
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}
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} |