public SCSIStatusCodeName ModeSense6(ModeSense6CommandDescriptorBlock command, LUNStructure lun, out byte[] response)
{
if (lun >= m_disks.Count)
{
response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidLUNSenseData());
return(SCSIStatusCodeName.CheckCondition);
}
ISCSIServer.Log("[ModeSense6] Page code: 0x{0}, Sub page code: 0x{1}", command.PageCode.ToString("X"), command.SubpageCode.ToString("X"));
byte[] pageData;
switch ((ModePageCodeName)command.PageCode)
{
case ModePageCodeName.CachingParametersPage:
{
CachingParametersPage page = new CachingParametersPage();
page.RCD = true;
pageData = page.GetBytes();
break;
}
case ModePageCodeName.ControlModePage:
{
ControlModePage page = new ControlModePage();
pageData = page.GetBytes();
break;
}
case ModePageCodeName.PowerConditionModePage:
{
if (command.SubpageCode == 0x00)
{
PowerConditionModePage page = new PowerConditionModePage();
pageData = page.GetBytes();
break;
}
else if (command.SubpageCode == 0x01)
{
PowerConsumptionModePage page = new PowerConsumptionModePage();
pageData = page.GetBytes();
break;
}
else
{
response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidFieldInCDBSenseData());
ISCSIServer.Log("[ModeSense6] Power condition subpage 0x{0} is not implemented", command.SubpageCode.ToString("x"));
return(SCSIStatusCodeName.CheckCondition);
}
}
case ModePageCodeName.InformationalExceptionsControlModePage:
{
InformationalExceptionsControlModePage page = new InformationalExceptionsControlModePage();
pageData = page.GetBytes();
break;
}
case ModePageCodeName.ReturnAllPages:
{
CachingParametersPage page1 = new CachingParametersPage();
page1.RCD = true;
InformationalExceptionsControlModePage page2 = new InformationalExceptionsControlModePage();
pageData = new byte[page1.Length + page2.Length];
Array.Copy(page1.GetBytes(), pageData, page1.Length);
Array.Copy(page2.GetBytes(), 0, pageData, page1.Length, page2.Length);
break;
}
case ModePageCodeName.VendorSpecificPage:
{
// Microsoft iSCSI Target running under Windows 2000 will request this page, we immitate Microsoft iSCSI Target by sending back an empty page
VendorSpecificPage page = new VendorSpecificPage();
pageData = page.GetBytes();
break;
}
default:
{
response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidFieldInCDBSenseData());
ISCSIServer.Log("[ModeSense6] ModeSense6 page 0x{0} is not implemented", command.PageCode.ToString("x"));
return(SCSIStatusCodeName.CheckCondition);
}
}
ModeParameterHeader6 header = new ModeParameterHeader6();
header.WP = m_disks[lun].IsReadOnly; // Write protected, even when set to true, Windows does not always prevent the disk from being written to.
header.DPOFUA = true; // Microsoft iSCSI Target support this
byte[] descriptorBytes = new byte[0];
if (!command.DBD)
{
ShortLBAModeParameterBlockDescriptor descriptor = new ShortLBAModeParameterBlockDescriptor();
descriptor.LogicalBlockLength = (uint)m_disks[lun].BytesPerSector;
descriptorBytes = descriptor.GetBytes();
}
header.BlockDescriptorLength = (byte)descriptorBytes.Length;
header.ModeDataLength += (byte)(descriptorBytes.Length + pageData.Length);
response = new byte[1 + header.ModeDataLength];
Array.Copy(header.GetBytes(), 0, response, 0, header.Length);
Array.Copy(descriptorBytes, 0, response, header.Length, descriptorBytes.Length);
Array.Copy(pageData, 0, response, header.Length + descriptorBytes.Length, pageData.Length);
return(SCSIStatusCodeName.Good);
}
public SCSIStatusCodeName Inquiry(InquiryCommand command, LUNStructure lun, out byte[] response)
{
if (lun >= m_disks.Count)
{
response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidLUNSenseData());
return(SCSIStatusCodeName.CheckCondition);
}
if (!command.EVPD)
{
if ((int)command.PageCode == 0)
{
StandardInquiryData inquiryData = new StandardInquiryData();
inquiryData.PeripheralDeviceType = 0; // Direct access block device
inquiryData.VendorIdentification = "TalAloni";
inquiryData.ProductIdentification = "iSCSI Disk " + ((ushort)lun).ToString();
inquiryData.ProductRevisionLevel = "1.00";
inquiryData.DriveSerialNumber = 0;
inquiryData.CmdQue = true;
inquiryData.Version = 5; // Microsoft iSCSI Target report version 5
if (this is ISCSITarget)
{
inquiryData.VersionDescriptors.Add(0x0960); // iSCSI
}
response = inquiryData.GetBytes();
}
else
{
ISCSIServer.Log("[Inquiry] Invalid request");
response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidFieldInCDBSenseData());
return(SCSIStatusCodeName.CheckCondition);
}
}
else
{
ISCSIServer.Log("[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");
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));
if (this is ISCSITarget)
{
// ISCSI identifier is needed for WinPE to pick up the disk during boot (after iPXE's sanhook)
page.IdentificationDescriptorList.Add(IdentificationDescriptor.GetSCSINameStringIdentifier(((ISCSITarget)this).TargetName));
}
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:
{
response = FormatSenseData(SenseDataParameter.GetIllegalRequestInvalidFieldInCDBSenseData());
ISCSIServer.Log("[Inquiry] Unsupported VPD Page request (0x{0})", command.PageCode.ToString("X"));
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);
}