public bool IdentifyController(SafeHandle hDevice, out Kernel32.NVME_IDENTIFY_CONTROLLER_DATA data)
{
data = Kernel32.CreateStruct <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>();
if (hDevice == null || hDevice.IsInvalid)
{
return(false);
}
bool result = false;
Kernel32.NVME_PASS_THROUGH_IOCTL passThrough = Kernel32.CreateStruct <Kernel32.NVME_PASS_THROUGH_IOCTL>();
passThrough.srb.HeaderLenght = (uint)Marshal.SizeOf <Kernel32.SRB_IO_CONTROL>();
passThrough.srb.Signature = Encoding.ASCII.GetBytes(Kernel32.IntelNVMeMiniPortSignature1);
passThrough.srb.Timeout = 10;
passThrough.srb.ControlCode = Kernel32.NVME_PASS_THROUGH_SRB_IO_CODE;
passThrough.srb.ReturnCode = 0;
passThrough.srb.Length = (uint)Marshal.SizeOf <Kernel32.NVME_PASS_THROUGH_IOCTL>() - (uint)Marshal.SizeOf <Kernel32.SRB_IO_CONTROL>();
passThrough.NVMeCmd = new uint[16];
passThrough.NVMeCmd[0] = 6; //identify
passThrough.NVMeCmd[10] = 1; //return to host
passThrough.Direction = Kernel32.NVME_DIRECTION.NVME_FROM_DEV_TO_HOST;
passThrough.QueueId = 0;
passThrough.DataBufferLen = (uint)passThrough.DataBuffer.Length;
passThrough.MetaDataLen = 0;
passThrough.ReturnBufferLen = (uint)Marshal.SizeOf <Kernel32.NVME_PASS_THROUGH_IOCTL>();
int length = Marshal.SizeOf <Kernel32.NVME_PASS_THROUGH_IOCTL>();
IntPtr buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(passThrough, buffer, false);
bool validTransfer = Kernel32.DeviceIoControl(hDevice, Kernel32.IOCTL.IOCTL_SCSI_MINIPORT, buffer, length, buffer, length, out _, IntPtr.Zero);
if (validTransfer)
{
IntPtr offset = Marshal.OffsetOf <Kernel32.NVME_PASS_THROUGH_IOCTL>(nameof(Kernel32.NVME_PASS_THROUGH_IOCTL.DataBuffer));
var newPtr = IntPtr.Add(buffer, offset.ToInt32());
int finalSize = Marshal.SizeOf <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>();
IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>());
Kernel32.RtlZeroMemory(ptr, finalSize);
int len = Math.Min(finalSize, passThrough.DataBuffer.Length);
Kernel32.RtlCopyMemory(ptr, newPtr, (uint)len);
Marshal.FreeHGlobal(buffer);
Kernel32.NVME_IDENTIFY_CONTROLLER_DATA item = Marshal.PtrToStructure <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>(ptr);
data = item;
Marshal.FreeHGlobal(ptr);
result = true;
}
else
{
Marshal.FreeHGlobal(buffer);
}
return(result);
}
public NVMeInfo(int index, Kernel32.NVME_IDENTIFY_CONTROLLER_DATA data)
{
Index = index;
VID = data.VID;
SSVID = data.SSVID;
Serial = GetString(data.SN);
Model = GetString(data.MN);
Revision = GetString(data.FR);
IEEE = data.IEEE;
TotalCapacity = BitConverter.ToUInt64(data.TNVMCAP, 0); // 128bit little endian
UnallocatedCapacity = BitConverter.ToUInt64(data.UNVMCAP, 0);
ControllerId = data.CNTLID;
NumberNamespaces = data.NN;
}
public bool IdentifyController(SafeHandle hDevice, out Kernel32.NVME_IDENTIFY_CONTROLLER_DATA data)
{
data = Kernel32.CreateStruct <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>();
if (hDevice == null || hDevice.IsInvalid)
{
return(false);
}
bool result = false;
Kernel32.STORAGE_QUERY_BUFFER nptwb = Kernel32.CreateStruct <Kernel32.STORAGE_QUERY_BUFFER>();
nptwb.ProtocolSpecific.ProtocolType = Kernel32.STORAGE_PROTOCOL_TYPE.ProtocolTypeNvme;
nptwb.ProtocolSpecific.DataType = (uint)Kernel32.STORAGE_PROTOCOL_NVME_DATA_TYPE.NVMeDataTypeIdentify;
nptwb.ProtocolSpecific.ProtocolDataRequestValue = (uint)Kernel32.STORAGE_PROTOCOL_NVME_PROTOCOL_DATA_REQUEST_VALUE.NVMeIdentifyCnsController;
nptwb.ProtocolSpecific.ProtocolDataOffset = (uint)Marshal.SizeOf <Kernel32.STORAGE_PROTOCOL_SPECIFIC_DATA>();
nptwb.ProtocolSpecific.ProtocolDataLength = (uint)nptwb.Buffer.Length;
nptwb.PropertyId = Kernel32.STORAGE_PROPERTY_ID.StorageAdapterProtocolSpecificProperty;
nptwb.QueryType = Kernel32.STORAGE_QUERY_TYPE.PropertyStandardQuery;
int length = Marshal.SizeOf <Kernel32.STORAGE_QUERY_BUFFER>();
IntPtr buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(nptwb, buffer, false);
bool validTransfer = Kernel32.DeviceIoControl(hDevice, Kernel32.IOCTL.IOCTL_STORAGE_QUERY_PROPERTY, buffer, length, buffer, length, out _, IntPtr.Zero);
if (validTransfer)
{
//map NVME_IDENTIFY_CONTROLLER_DATA to nptwb.Buffer
IntPtr offset = Marshal.OffsetOf <Kernel32.STORAGE_QUERY_BUFFER>(nameof(Kernel32.STORAGE_QUERY_BUFFER.Buffer));
var newPtr = IntPtr.Add(buffer, offset.ToInt32());
Kernel32.NVME_IDENTIFY_CONTROLLER_DATA item = Marshal.PtrToStructure <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>(newPtr);
data = item;
Marshal.FreeHGlobal(buffer);
result = true;
}
else
{
Marshal.FreeHGlobal(buffer);
}
return(result);
}
public Storage.NVMeInfo GetInfo()
{
if (_handle == null || _handle.IsClosed)
{
return(null);
}
bool valid = false;
var data = new Kernel32.NVME_IDENTIFY_CONTROLLER_DATA();
if (NVMeDrive != null)
{
valid = NVMeDrive.IdentifyController(_handle, out data);
}
if (!valid)
{
return(null);
}
return(new NVMeInfo(_driveNumber, data));
}
public bool IdentifyController(SafeHandle hDevice, out Kernel32.NVME_IDENTIFY_CONTROLLER_DATA data)
{
data = Kernel32.CreateStruct <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>();
if (hDevice?.IsInvalid != false)
{
return(false);
}
bool result = false;
Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS buffers = Kernel32.CreateStruct <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>();
buffers.Spt.Length = (ushort)Marshal.SizeOf <Kernel32.SCSI_PASS_THROUGH>();
buffers.Spt.PathId = 0;
buffers.Spt.TargetId = 0;
buffers.Spt.Lun = 0;
buffers.Spt.SenseInfoLength = 24;
buffers.Spt.DataTransferLength = (uint)buffers.DataBuf.Length;
buffers.Spt.TimeOutValue = 2;
buffers.Spt.DataBufferOffset = Marshal.OffsetOf(typeof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS), nameof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS.DataBuf));
buffers.Spt.SenseInfoOffset = (uint)Marshal.OffsetOf(typeof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS), nameof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS.SenseBuf));
buffers.Spt.CdbLength = 16;
buffers.Spt.Cdb[0] = 0xB5; // SECURITY PROTOCOL IN
buffers.Spt.Cdb[1] = 0xFE; // Samsung Protocol
buffers.Spt.Cdb[3] = 5; // Identify
buffers.Spt.Cdb[8] = 0; // Transfer Length
buffers.Spt.Cdb[9] = 0x40; // Transfer Length
buffers.Spt.DataIn = (byte)Kernel32.SCSI_IOCTL_DATA.SCSI_IOCTL_DATA_OUT;
buffers.DataBuf[0] = 1;
int length = Marshal.SizeOf <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>();
IntPtr buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(buffers, buffer, false);
bool validTransfer = Kernel32.DeviceIoControl(hDevice, Kernel32.IOCTL.IOCTL_SCSI_PASS_THROUGH, buffer, length, buffer, length, out _, IntPtr.Zero);
Marshal.FreeHGlobal(buffer);
if (validTransfer)
{
//read data from samsung SSD
buffers = Kernel32.CreateStruct <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>();
buffers.Spt.Length = (ushort)Marshal.SizeOf <Kernel32.SCSI_PASS_THROUGH>();
buffers.Spt.PathId = 0;
buffers.Spt.TargetId = 0;
buffers.Spt.Lun = 0;
buffers.Spt.SenseInfoLength = 24;
buffers.Spt.DataTransferLength = (uint)buffers.DataBuf.Length;
buffers.Spt.TimeOutValue = 2;
buffers.Spt.DataBufferOffset = Marshal.OffsetOf <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>(nameof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS.DataBuf));
buffers.Spt.SenseInfoOffset = (uint)Marshal.OffsetOf <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>(nameof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS.SenseBuf));
buffers.Spt.CdbLength = 16;
buffers.Spt.Cdb[0] = 0xA2; // SECURITY PROTOCOL IN
buffers.Spt.Cdb[1] = 0xFE; // Samsung Protocol
buffers.Spt.Cdb[3] = 5; // Identify
buffers.Spt.Cdb[8] = 2; // Transfer Length (high)
buffers.Spt.Cdb[9] = 0; // Transfer Length (low)
buffers.Spt.DataIn = (byte)Kernel32.SCSI_IOCTL_DATA.SCSI_IOCTL_DATA_IN;
length = Marshal.SizeOf <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>();
buffer = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(buffers, buffer, false);
validTransfer = Kernel32.DeviceIoControl(hDevice, Kernel32.IOCTL.IOCTL_SCSI_PASS_THROUGH, buffer, length, buffer, length, out _, IntPtr.Zero);
if (validTransfer)
{
IntPtr offset = Marshal.OffsetOf <Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS>(nameof(Kernel32.SCSI_PASS_THROUGH_WITH_BUFFERS.DataBuf));
IntPtr newPtr = IntPtr.Add(buffer, offset.ToInt32());
data = Marshal.PtrToStructure <Kernel32.NVME_IDENTIFY_CONTROLLER_DATA>(newPtr);
Marshal.FreeHGlobal(buffer);
result = true;
}
else
{
Marshal.FreeHGlobal(buffer);
}
}
return(result);
}