moel@1: /*
moel@1:
moel@1: Version: MPL 1.1/GPL 2.0/LGPL 2.1
moel@1:
moel@1: The contents of this file are subject to the Mozilla Public License Version
moel@1: 1.1 (the "License"); you may not use this file except in compliance with
moel@1: the License. You may obtain a copy of the License at
moel@1:
moel@1: http://www.mozilla.org/MPL/
moel@1:
moel@1: Software distributed under the License is distributed on an "AS IS" basis,
moel@1: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
moel@1: for the specific language governing rights and limitations under the License.
moel@1:
moel@1: The Original Code is the Open Hardware Monitor code.
moel@1:
moel@1: The Initial Developer of the Original Code is
moel@1: Michael Möller <m.moeller@gmx.ch>.
moel@1: Portions created by the Initial Developer are Copyright (C) 2009-2010
moel@1: the Initial Developer. All Rights Reserved.
moel@1:
paulwerelds@218: Contributor(s): Paul Werelds
moel@1:
moel@1: Alternatively, the contents of this file may be used under the terms of
moel@1: either the GNU General Public License Version 2 or later (the "GPL"), or
moel@1: the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
moel@1: in which case the provisions of the GPL or the LGPL are applicable instead
moel@1: of those above. If you wish to allow use of your version of this file only
moel@1: under the terms of either the GPL or the LGPL, and not to allow others to
moel@1: use your version of this file under the terms of the MPL, indicate your
moel@1: decision by deleting the provisions above and replace them with the notice
moel@1: and other provisions required by the GPL or the LGPL. If you do not delete
moel@1: the provisions above, a recipient may use your version of this file under
moel@1: the terms of any one of the MPL, the GPL or the LGPL.
moel@1:
moel@1: */
moel@1:
moel@1: using System;
paulwerelds@218: using System.Collections.Generic;
moel@1: using System.Runtime.InteropServices;
moel@1:
moel@1: namespace OpenHardwareMonitor.Hardware.HDD {
moel@165:
moel@165: internal class SMART {
moel@1:
moel@1: [Flags]
moel@1: public enum Status : ushort {
moel@1: PreFailureWarranty = 0x01,
moel@1: OnLineCollection = 0x02,
moel@1: Performance = 0x04,
moel@1: ErrorRate = 0x08,
moel@1: EventCount = 0x10,
moel@1: SelfPreserving = 0x20
moel@1: }
moel@1:
moel@231: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@231: public struct AttributeID {
moel@231: private byte value;
moel@231:
moel@231: public AttributeID(byte value) {
moel@231: this.value = value;
moel@231: }
moel@231:
moel@231: public override bool Equals(Object obj) {
moel@231: return obj is AttributeID && this == (AttributeID)obj;
moel@231: }
moel@231: public override int GetHashCode() {
moel@231: return value.GetHashCode() ^ value.GetHashCode();
moel@231: }
moel@231: public static bool operator ==(AttributeID a, AttributeID b) {
moel@231: return a.value == b.value;
moel@231: }
moel@231: public static bool operator !=(AttributeID a, AttributeID b) {
moel@231: return !(a == b);
moel@231: }
moel@231:
moel@231: public string ToString(string format) {
moel@231: return value.ToString(format);
moel@231: }
moel@231:
moel@231: public static readonly AttributeID None = new AttributeID(0x00);
moel@1: }
moel@1:
paulwerelds@233: // These are the more-or-less standard S.M.A.R.T attributes
paulwerelds@233: // TODO: Filter out unused/obscure ones; some are interpreted differently
paulwerelds@233: // between manufacturers
paulwerelds@233: public static class CommonAttributes {
paulwerelds@233: public static readonly AttributeID
paulwerelds@233: ReadErrorRate = new AttributeID(0x01),
paulwerelds@233: ThroughputPerformance = new AttributeID(0x02),
paulwerelds@233: SpinUpTime = new AttributeID(0x03),
paulwerelds@233: StartStopCount = new AttributeID(0x04),
paulwerelds@233: ReallocatedSectorsCount = new AttributeID(0x05),
paulwerelds@233: ReadChannelMargin = new AttributeID(0x06),
paulwerelds@233: SeekErrorRate = new AttributeID(0x07),
paulwerelds@233: SeekTimePerformance = new AttributeID(0x08),
paulwerelds@233: PowerOnHours = new AttributeID(0x09),
paulwerelds@233: SpinRetryCount = new AttributeID(0x0A),
paulwerelds@233: RecalibrationRetries = new AttributeID(0x0B),
paulwerelds@233: PowerCycleCount = new AttributeID(0x0C),
paulwerelds@233: SoftReadErrorRate = new AttributeID(0x0D),
paulwerelds@233: SataDownshiftErrorCount = new AttributeID(0xB7),
paulwerelds@233: EndToEndError = new AttributeID(0xB8),
paulwerelds@233: HeadStability = new AttributeID(0xB9),
paulwerelds@233: InducedOpVibrationDetection = new AttributeID(0xBA),
paulwerelds@233: ReportedUncorrectableErrors = new AttributeID(0xBB),
paulwerelds@233: CommandTimeout = new AttributeID(0xBC),
paulwerelds@233: HighFlyWrites = new AttributeID(0xBD),
paulwerelds@233: AirflowTemperature = new AttributeID(0xBE),
paulwerelds@233: GSenseErrorRate = new AttributeID(0xBF),
paulwerelds@233: PowerOffRetractCount = new AttributeID(0xC0),
paulwerelds@233: LoadCycleCount = new AttributeID(0xC1),
paulwerelds@233: Temperature = new AttributeID(0xC2),
paulwerelds@233: HardwareEccRecovered = new AttributeID(0xC3),
paulwerelds@233: ReallocationEventCount = new AttributeID(0xC4),
paulwerelds@233: CurrentPendingSectorCount = new AttributeID(0xC5),
paulwerelds@233: UncorrectableSectorCount = new AttributeID(0xC6),
paulwerelds@233: UltraDmaCrcErrorCount = new AttributeID(0xC7),
paulwerelds@233: WriteErrorRate = new AttributeID(0xC8),
paulwerelds@233: DataAddressMarkerrors = new AttributeID(0xCA),
paulwerelds@233: RunOutCancel = new AttributeID(0xCB),
paulwerelds@233: SoftEccCorrection = new AttributeID(0xCC),
paulwerelds@233: ThermalAsperityRate = new AttributeID(0xCD),
paulwerelds@233: FlyingHeight = new AttributeID(0xCE),
paulwerelds@233: SpinHighCurrent = new AttributeID(0xCF),
paulwerelds@233: SpinBuzz = new AttributeID(0xD0),
paulwerelds@233: OfflineSeekPerformance = new AttributeID(0xD1),
paulwerelds@233: VibrationDuringWrite = new AttributeID(0xD3),
paulwerelds@233: ShockDuringWrite = new AttributeID(0xD4),
paulwerelds@233: DiskShift = new AttributeID(0xDC),
paulwerelds@233: GSenseErrorRateAlt = new AttributeID(0xDD), // Alternative to 0xBF
paulwerelds@233: LoadedHours = new AttributeID(0xDE),
paulwerelds@233: LoadUnloadRetryCount = new AttributeID(0xDF),
paulwerelds@233: LoadFriction = new AttributeID(0xE0),
paulwerelds@233: LoadUnloadCycleCount = new AttributeID(0xE1),
paulwerelds@233: LoadInTime = new AttributeID(0xE2),
paulwerelds@233: TorqueAmplificationCount = new AttributeID(0xE3),
paulwerelds@233: PowerOffRetractCycle = new AttributeID(0xE4),
paulwerelds@233: GMRHeadAmplitude = new AttributeID(0xE6),
paulwerelds@233: DriveTemperature = new AttributeID(0xE7),
paulwerelds@233: HeadFlyingHours = new AttributeID(0xF0),
paulwerelds@233: LBAsWrittenTotal = new AttributeID(0xF1),
paulwerelds@233: LBAsReadTotal = new AttributeID(0xF2),
paulwerelds@233: ReadErrorRetryRate = new AttributeID(0xFA),
paulwerelds@233: FreeFallProtection = new AttributeID(0xFE)
paulwerelds@233: ;
moel@231: }
moel@231:
moel@231: // Indilinx SSD SMART attributes
paulwerelds@233: // TODO: Find out the purpose of attribute 0xD2
paulwerelds@233: // Seems to be unique to Indilinx drives, hence its name of UnknownUnique.
paulwerelds@233: public static class IndilinxAttributes {
paulwerelds@233: public static readonly AttributeID
paulwerelds@233: ReadErrorRate = CommonAttributes.ReadErrorRate,
paulwerelds@233: PowerOnHours = CommonAttributes.PowerOnHours,
paulwerelds@233: PowerCycleCount = CommonAttributes.PowerCycleCount,
paulwerelds@233: InitialBadBlockCount = new AttributeID(0xB8),
paulwerelds@233: RemainingLife = new AttributeID(0xD1),
paulwerelds@233: ProgramFailure = new AttributeID(0xC3),
paulwerelds@233: EraseFailure = new AttributeID(0xC4),
paulwerelds@233: ReadFailure = new AttributeID(0xC5),
paulwerelds@233: SectorsRead = new AttributeID(0xC6),
paulwerelds@233: SectorsWritten = new AttributeID(0xC7),
paulwerelds@233: ReadCommands = new AttributeID(0xC8),
paulwerelds@233: WriteCommands = new AttributeID(0xC9),
paulwerelds@233: BitErrors = new AttributeID(0xCA),
paulwerelds@233: CorrectedErrors = new AttributeID(0xCB),
paulwerelds@233: BadBlockFullFlag = new AttributeID(0xCC),
paulwerelds@233: MaxCellcycles = new AttributeID(0xCD),
paulwerelds@233: MinErase = new AttributeID(0xCE),
paulwerelds@233: MaxErase = new AttributeID(0xCF),
paulwerelds@233: AverageEraseCount = new AttributeID(0xD0),
paulwerelds@233: UnknownUnique = new AttributeID(0xD2),
paulwerelds@233: SataErrorCountCRC = new AttributeID(0xD3),
paulwerelds@233: SataErrorCountHandshake = new AttributeID(0xD4)
paulwerelds@233: ;
moel@231: }
moel@231:
moel@231: // Intel SSD SMART attributes
paulwerelds@233: // TODO: Find out the meaning behind 0xE2, 0xE3 and 0xE4
paulwerelds@233: public static class IntelAttributes {
paulwerelds@233: public static readonly AttributeID
paulwerelds@233: ReadErrorRate = CommonAttributes.ReadErrorRate,
paulwerelds@233: SpinUpTime = CommonAttributes.SpinUpTime,
paulwerelds@233: StartStopCount = CommonAttributes.StartStopCount,
paulwerelds@233: ReallocatedSectorsCount = CommonAttributes.ReallocatedSectorsCount,
paulwerelds@233: PowerOnHours = CommonAttributes.PowerOnHours,
paulwerelds@233: PowerCycleCount = CommonAttributes.PowerCycleCount,
paulwerelds@233: EndToEndError = CommonAttributes.EndToEndError, // Only on G2 drives!
paulwerelds@233:
paulwerelds@233: // Different from the common attribute PowerOffRetractCount, same ID
paulwerelds@233: UnsafeShutdownCount = new AttributeID(0xC0),
paulwerelds@233: HostWrites = new AttributeID(0xE1),
paulwerelds@233: RemainingLife = new AttributeID(0xE8),
paulwerelds@233: MediaWearOutIndicator = new AttributeID(0xE9)
paulwerelds@233: ;
moel@231: }
moel@231:
moel@231: // Samsung SSD SMART attributes
paulwerelds@233: // TODO: AF, B0, B1, B5, B6, BB, C3, C6, C7, E8, E9
paulwerelds@233: public static class SamsungAttributes {
paulwerelds@233: public static readonly AttributeID
paulwerelds@233: PowerOnHours = CommonAttributes.PowerOnHours,
paulwerelds@233: PowerCycleCount = CommonAttributes.PowerCycleCount,
paulwerelds@233: UsedReservedBlockCountChip = new AttributeID(0xB2), // Unique
paulwerelds@233: UsedReservedBlockCountTotal = new AttributeID(0xB3), // Unique
paulwerelds@233: RemainingLife = new AttributeID(0xB4), // Unique
paulwerelds@233: RuntimeBadBlockTotal = new AttributeID(0xB7)
paulwerelds@233: ;
moel@231: }
moel@231:
moel@231: // SandForce SSD SMART attributes
paulwerelds@233: // Note: 0xE9 and 0xEA are reserved attributes and unique
paulwerelds@233: public static class SandForceAttributes {
paulwerelds@233: public static readonly AttributeID
paulwerelds@233: ReadErrorRate = CommonAttributes.ReadErrorRate,
paulwerelds@233: RetiredBlockCount = new AttributeID(0x05),
paulwerelds@233: PowerOnHours = CommonAttributes.PowerOnHours,
paulwerelds@233: PowerCycleCount = CommonAttributes.PowerCycleCount,
paulwerelds@233: ProgramFailCount = new AttributeID(0xAB), // Unique
paulwerelds@233: EraseFailCount = new AttributeID(0xAC), // Unique
paulwerelds@233: UnexpectedPowerLossCount = new AttributeID(0xAE), // Unique
paulwerelds@233: WearRangeDelta = new AttributeID(0xB1), // Unique
paulwerelds@233: ProgramFailCountAlt = new AttributeID(0xB5), // Same as 0xAB
paulwerelds@233: EraseFailCountAlt = new AttributeID(0xB6), // Same as 0xAC
paulwerelds@233: ReportedUncorrectableErrors =
paulwerelds@233: CommonAttributes.ReportedUncorrectableErrors,
paulwerelds@233:
paulwerelds@233: Temperature = CommonAttributes.Temperature, // SF-1500 only!
paulwerelds@233:
paulwerelds@233: // Opposite of the common attribute HardwareECCRecovered
paulwerelds@233: UnrecoverableECC = new AttributeID(0xC3),
paulwerelds@233: ReallocationEventCount = new AttributeID(0xC4),
paulwerelds@233: RemainingLife = new AttributeID(0xE7),
paulwerelds@233: LifetimeWrites = new AttributeID(0xF1),
paulwerelds@233: LifetimeReads = new AttributeID(0xF2)
paulwerelds@233: ;
paulwerelds@218: }
paulwerelds@218:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@1: public struct DriveAttribute {
moel@1: public AttributeID ID;
moel@1: public Status StatusFlags;
moel@1: public byte AttrValue;
moel@1: public byte WorstValue;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
moel@1: public byte[] RawValue;
moel@1: public byte Reserved;
moel@1: };
moel@1:
moel@1: [Flags]
moel@195: protected enum AccessMode : uint {
moel@1: Read = 0x80000000,
moel@1: Write = 0x40000000,
moel@1: Execute = 0x20000000,
moel@1: All = 0x10000000
moel@1: }
moel@1:
moel@1: [Flags]
moel@195: protected enum ShareMode : uint {
moel@1: None = 0,
moel@1: Read = 1,
moel@1: Write = 2,
moel@1: Delete = 4
moel@1: }
moel@1:
moel@195: protected enum CreationMode : uint {
moel@1: New = 1,
moel@1: CreateAlways = 2,
moel@1: OpenExisting = 3,
moel@1: OpenAlways = 4,
moel@1: TruncateExisting = 5
moel@1: }
moel@1:
moel@1: [Flags]
moel@195: protected enum FileAttribute : uint {
moel@1: Readonly = 0x00000001,
moel@1: Hidden = 0x00000002,
moel@1: System = 0x00000004,
moel@1: Directory = 0x00000010,
moel@1: Archive = 0x00000020,
moel@1: Device = 0x00000040,
moel@1: Normal = 0x00000080,
moel@1: Temporary = 0x00000100,
moel@1: SparseFile = 0x00000200,
moel@1: ReparsePoint = 0x00000400,
moel@1: Compressed = 0x00000800,
moel@1: Offline = 0x00001000,
moel@1: NotContentIndexed = 0x00002000,
moel@1: Encrypted = 0x00004000,
moel@1: }
moel@1:
moel@195: protected enum DriveCommand : uint {
moel@1: GetVersion = 0x00074080,
moel@1: SendDriveCommand = 0x0007c084,
moel@1: ReceiveDriveData = 0x0007c088
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct CommandBlockRegisters {
moel@1: public byte Features;
moel@1: public byte SectorCount;
moel@1: public byte LBALow;
moel@1: public byte LBAMid;
moel@1: public byte LBAHigh;
moel@1: public byte Device;
moel@1: public byte Command;
moel@1: public byte Reserved;
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct DriveCommandParameter {
moel@195: public uint BufferSize;
moel@1: public CommandBlockRegisters Registers;
moel@1: public byte DriveNumber;
moel@188: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
moel@1: public byte[] Reserved;
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct DriverStatus {
moel@1: public byte DriverError;
moel@1: public byte IDEError;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]
moel@1: public byte[] Reserved;
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct DriveCommandResult {
moel@1: public uint BufferSize;
moel@1: public DriverStatus DriverStatus;
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct DriveSmartReadResult {
moel@1: public uint BufferSize;
moel@1: public DriverStatus DriverStatus;
moel@1: public byte Version;
moel@1: public byte Reserved;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = MAX_DRIVE_ATTRIBUTES)]
moel@1: public DriveAttribute[] Attributes;
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct Identify {
moel@1: public ushort GeneralConfiguration;
moel@1: public ushort NumberOfCylinders;
moel@1: public ushort Reserved;
moel@1: public ushort NumberOfHeads;
moel@1: public ushort UnformattedBytesPerTrack;
moel@1: public ushort UnformattedBytesPerSector;
moel@1: public ushort SectorsPerTrack;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
moel@1: public ushort[] VendorUnique;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]
moel@1: public byte[] SerialNumber;
moel@1: public ushort BufferType;
moel@1: public ushort BufferSectorSize;
moel@1: public ushort NumberOfEccBytes;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
moel@1: public byte[] FirmwareRevision;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 40)]
moel@1: public byte[] ModelNumber;
moel@1: public ushort MoreVendorUnique;
moel@1: public ushort DoubleWordIo;
moel@1: public ushort Capabilities;
moel@1: public ushort MoreReserved;
moel@1: public ushort PioCycleTimingMode;
moel@1: public ushort DmaCycleTimingMode;
moel@1: [MarshalAs(UnmanagedType.ByValArray, SizeConst = 406)]
moel@1: public byte[] More;
moel@1: }
moel@1:
moel@1: [StructLayout(LayoutKind.Sequential, Pack = 1)]
moel@195: protected struct DriveIdentifyResult {
moel@1: public uint BufferSize;
moel@1: public DriverStatus DriverStatus;
moel@1: public Identify Identify;
moel@1: }
moel@1:
moel@1: public static readonly IntPtr INVALID_HANDLE_VALUE = (IntPtr)(-1);
moel@1:
moel@1: private const byte SMART_CMD = 0xB0;
moel@1: private const byte ID_CMD = 0xEC;
moel@1:
moel@1: private const byte SMART_READ_DATA = 0xD0;
moel@1: private const byte SMART_ENABLE_OPERATIONS = 0xD8;
moel@1:
moel@1: private const byte SMART_LBA_MID = 0x4F;
moel@1: private const byte SMART_LBA_HI = 0xC2;
moel@1:
moel@1: private const int MAX_DRIVE_ATTRIBUTES = 512;
moel@1:
moel@167: private SMART() { }
moel@1:
moel@1: public static IntPtr OpenPhysicalDrive(int driveNumber) {
moel@167: return NativeMethods.CreateFile(@"\\.\PhysicalDrive" + driveNumber,
moel@1: AccessMode.Read | AccessMode.Write, ShareMode.Read | ShareMode.Write,
moel@1: IntPtr.Zero, CreationMode.OpenExisting, FileAttribute.Device,
moel@1: IntPtr.Zero);
moel@1: }
moel@1:
moel@1: public static bool EnableSmart(IntPtr handle, int driveNumber) {
moel@1: DriveCommandParameter parameter = new DriveCommandParameter();
moel@1: DriveCommandResult result;
moel@1: uint bytesReturned;
moel@1:
moel@1: parameter.DriveNumber = (byte)driveNumber;
moel@1: parameter.Registers.Features = SMART_ENABLE_OPERATIONS;
moel@1: parameter.Registers.LBAMid = SMART_LBA_MID;
moel@1: parameter.Registers.LBAHigh = SMART_LBA_HI;
moel@1: parameter.Registers.Command = SMART_CMD;
moel@1:
moel@167: return NativeMethods.DeviceIoControl(handle, DriveCommand.SendDriveCommand,
moel@167: ref parameter, Marshal.SizeOf(typeof(DriveCommandParameter)), out result,
moel@1: Marshal.SizeOf(typeof(DriveCommandResult)), out bytesReturned,
moel@1: IntPtr.Zero);
moel@1: }
moel@1:
paulwerelds@233: public static DriveAttribute[] ReadSmart(IntPtr handle,
paulwerelds@218: int driveNumber)
paulwerelds@218: {
moel@1: DriveCommandParameter parameter = new DriveCommandParameter();
moel@1: DriveSmartReadResult result;
moel@1: uint bytesReturned;
moel@1:
moel@1: parameter.DriveNumber = (byte)driveNumber;
moel@1: parameter.Registers.Features = SMART_READ_DATA;
moel@1: parameter.Registers.LBAMid = SMART_LBA_MID;
moel@1: parameter.Registers.LBAHigh = SMART_LBA_HI;
moel@1: parameter.Registers.Command = SMART_CMD;
moel@1:
paulwerelds@218: bool isValid = NativeMethods.DeviceIoControl(handle,
moel@167: DriveCommand.ReceiveDriveData, ref parameter, Marshal.SizeOf(parameter),
moel@167: out result, Marshal.SizeOf(typeof(DriveSmartReadResult)),
moel@167: out bytesReturned, IntPtr.Zero);
moel@1:
paulwerelds@233: return (isValid) ? result.Attributes : new DriveAttribute[0];
moel@1: }
moel@1:
moel@1: public static string ReadName(IntPtr handle, int driveNumber) {
moel@1: DriveCommandParameter parameter = new DriveCommandParameter();
moel@1: DriveIdentifyResult result;
moel@1: uint bytesReturned;
moel@1:
moel@1: parameter.DriveNumber = (byte)driveNumber;
moel@1: parameter.Registers.Command = ID_CMD;
moel@1:
moel@167: bool valid = NativeMethods.DeviceIoControl(handle,
moel@167: DriveCommand.ReceiveDriveData, ref parameter, Marshal.SizeOf(parameter),
moel@167: out result, Marshal.SizeOf(typeof(DriveIdentifyResult)),
moel@167: out bytesReturned, IntPtr.Zero);
moel@1:
moel@1: if (!valid)
moel@1: return null;
moel@1: else {
moel@1:
moel@1: byte[] bytes = result.Identify.ModelNumber;
moel@1: char[] chars = new char[bytes.Length];
moel@1: for (int i = 0; i < bytes.Length; i += 2) {
moel@1: chars[i] = (char)bytes[i + 1];
moel@1: chars[i + 1] = (char)bytes[i];
moel@1: }
moel@1:
moel@1: return new string(chars).Trim();
moel@1: }
moel@1: }
moel@1:
moel@167: public static int CloseHandle(IntPtr handle) {
moel@167: return NativeMethods.CloseHandle(handle);
moel@167: }
moel@167:
moel@195: protected static class NativeMethods {
moel@167: private const string KERNEL = "kernel32.dll";
moel@167:
moel@167: [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi,
moel@167: CharSet = CharSet.Unicode)]
moel@167: public static extern IntPtr CreateFile(string fileName,
moel@167: AccessMode desiredAccess, ShareMode shareMode, IntPtr securityAttributes,
moel@167: CreationMode creationDisposition, FileAttribute flagsAndAttributes,
moel@167: IntPtr templateFilehandle);
moel@167:
moel@167: [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi)]
moel@167: public static extern int CloseHandle(IntPtr handle);
moel@167:
moel@167: [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi)]
moel@167: [return: MarshalAsAttribute(UnmanagedType.Bool)]
moel@167: public static extern bool DeviceIoControl(IntPtr handle,
moel@167: DriveCommand command, ref DriveCommandParameter parameter,
moel@167: int parameterSize, out DriveSmartReadResult result, int resultSize,
moel@167: out uint bytesReturned, IntPtr overlapped);
moel@167:
moel@167: [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi)]
moel@167: [return: MarshalAsAttribute(UnmanagedType.Bool)]
moel@167: public static extern bool DeviceIoControl(IntPtr handle,
moel@167: DriveCommand command, ref DriveCommandParameter parameter,
moel@167: int parameterSize, out DriveCommandResult result, int resultSize,
moel@167: out uint bytesReturned, IntPtr overlapped);
moel@167:
moel@167: [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi)]
moel@167: [return: MarshalAsAttribute(UnmanagedType.Bool)]
moel@167: public static extern bool DeviceIoControl(IntPtr handle,
moel@167: DriveCommand command, ref DriveCommandParameter parameter,
moel@167: int parameterSize, out DriveIdentifyResult result, int resultSize,
moel@167: out uint bytesReturned, IntPtr overlapped);
moel@167: }
moel@1: }
moel@1: }