public static IdentificationDescriptor GetSCSINameStringIdentifier(string iqn)
{
IdentificationDescriptor result = new IdentificationDescriptor(IdentifierTypeName.ScsiNameString, iqn);
result.Association = AssociationName.TargetDevice;
result.ProtocolIdentifier = ProtocolName.ISCSI;
return(result);
}
public DeviceIdentificationVPDPage(byte[] buffer, int offset)
{
PeripheralQualifier = (byte)(buffer[offset + 0] >> 5);
PeripheralDeviceType = (byte)(buffer[offset + 0] & 0x1F);
PageCode = (VitalProductDataPageName)buffer[offset + 1];
PageLength = BigEndianConverter.ToUInt16(buffer, 2);
int parameterOffset = 4;
while (parameterOffset < PageLength)
{
IdentificationDescriptor descriptor = new IdentificationDescriptor(buffer, offset + parameterOffset);
IdentificationDescriptorList.Add(descriptor);
parameterOffset += descriptor.Length;
}
}
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);
}