예제 #1
0
        public SCSIStatusCodeName Inquiry(InquiryCommand command, LUNStructure lun, out byte[] response)
        {
            if (!command.EVPD)
            {
                if ((int)command.PageCode == 0)
                {
                    StandardInquiryData inquiryData = new StandardInquiryData();
                    inquiryData.PeripheralDeviceType  = 0; // Direct access block device
                    inquiryData.VendorIdentification  = "TalAloni";
                    inquiryData.ProductIdentification = "SCSI Disk " + ((ushort)lun).ToString();
                    inquiryData.ProductRevisionLevel  = "1.00";
                    inquiryData.DriveSerialNumber     = 0;
                    inquiryData.CmdQue  = true;
                    inquiryData.Version = 5; // SPC-3
                    NotifyStandardInquiry(this, new StandardInquiryEventArgs(lun, inquiryData));
                    response = inquiryData.GetBytes();
                }
                else
                {
                    Log(Severity.Warning, "Initiator error: Invalid Inquiry request");
                    response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidFieldInCDBSenseData());
                    return(SCSIStatusCodeName.CheckCondition);
                }
            }
            else
            {
                Log(Severity.Verbose, "Inquiry: Page code: 0x{0}", command.PageCode.ToString("X"));
                switch (command.PageCode)
                {
                case VitalProductDataPageName.SupportedVPDPages:
                {
                    SupportedVitaLProductDataPages page = new SupportedVitaLProductDataPages();
                    page.SupportedPageList.Add((byte)VitalProductDataPageName.SupportedVPDPages);
                    page.SupportedPageList.Add((byte)VitalProductDataPageName.UnitSerialNumber);
                    page.SupportedPageList.Add((byte)VitalProductDataPageName.DeviceIdentification);
                    response = page.GetBytes();
                    break;
                }

                case VitalProductDataPageName.UnitSerialNumber:
                {
                    UnitSerialNumberVPDPage page = new UnitSerialNumberVPDPage();
                    // Older products that only support the Product Serial Number parameter will have a page length of 08h, while newer products that support both parameters (Vendor Unique field from the StandardInquiryData) will have a page length of 14h
                    // Microsoft iSCSI Target uses values such as "34E5A6FC-3ACC-452D-AEDA-6EE2EFF20FB4"
                    ulong serialNumber = 0;
                    page.ProductSerialNumber = serialNumber.ToString("00000000");
                    NotifyUnitSerialNumberInquiry(this, new UnitSerialNumberInquiryEventArgs(lun, page));
                    response = page.GetBytes();
                    break;
                }

                case VitalProductDataPageName.DeviceIdentification:
                {
                    DeviceIdentificationVPDPage page = new DeviceIdentificationVPDPage();
                    // NAA identifier is needed to prevent 0xF4 BSOD during Windows setup
                    page.IdentificationDescriptorList.Add(IdentificationDescriptor.GetNAAExtendedIdentifier(5, lun));
                    NotifyDeviceIdentificationInquiry(this, new DeviceIdentificationInquiryEventArgs(lun, page));
                    response = page.GetBytes();
                    break;
                }

                case VitalProductDataPageName.BlockLimits:
                {
                    /* Provide only when requeste explicitly */
                    BlockLimitsVPDPage page = new BlockLimitsVPDPage();
                    page.OptimalTransferLengthGranularity = 128;
                    page.MaximumTransferLength            = (uint)DiskAccessLibrary.Settings.MaximumTransferSizeLBA;
                    page.OptimalTransferLength            = 128;
                    response = page.GetBytes();
                    break;
                }

                case VitalProductDataPageName.BlockDeviceCharacteristics:
                {
                    /* Provide only when requeste explicitly */
                    BlockDeviceCharacteristicsVPDPage page = new BlockDeviceCharacteristicsVPDPage();
                    page.MediumRotationRate = 0;         // Not reported
                    response = page.GetBytes();
                    break;
                }

                default:
                {
                    Log(Severity.Error, "Inquiry: Unsupported VPD Page request (0x{0})", command.PageCode.ToString("X"));
                    response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidFieldInCDBSenseData());
                    return(SCSIStatusCodeName.CheckCondition);
                }
                }
            }

            // we must not return more bytes than InquiryCommand.AllocationLength
            if (response.Length > command.AllocationLength)
            {
                response = ByteReader.ReadBytes(response, 0, command.AllocationLength);
            }
            return(SCSIStatusCodeName.Good);
        }
예제 #2
0
 public DeviceIdentificationInquiryEventArgs(LUNStructure lun, DeviceIdentificationVPDPage page)
 {
     LUN  = lun;
     Page = page;
 }