async Task HandleRequestImportAsync(CancellationToken cancellationToken)
{
var buf = new byte[SYSFS_BUS_ID_SIZE];
await RecvExactSizeAsync(Stream, buf, cancellationToken);
var busid = Encoding.UTF8.GetString(buf).TrimEnd('\0');
var status = Status.ST_ERROR;
try
{
var exportedDevices = await ExportedDevice.GetAll(cancellationToken);
status = Status.ST_NODEV;
var exportedDevice = exportedDevices.Single(x => x.BusId == busid);
status = Status.ST_NA;
using var mon = new VBoxUsbMon();
await mon.CheckVersion();
await mon.AddFilter(exportedDevice);
await mon.RunFilters();
status = Status.ST_DEV_BUSY;
ClientContext.AttachedDevice = await mon.ClaimDevice(exportedDevice);
ClientContext.ConfigurationDescriptors = exportedDevice.ConfigurationDescriptors;
status = Status.ST_DEV_ERR;
var cfg = new byte[1] {
0
};
await ClientContext.AttachedDevice.IoControlAsync(VBoxUsb.IoControl.SUPUSB_IOCTL_USB_SET_CONFIG, cfg, null);
status = Status.ST_OK;
await SendOpCodeAsync(OpCode.OP_REP_IMPORT, Status.ST_OK);
exportedDevice.Serialize(Stream, false);
await ServiceProvider.GetRequiredService <AttachedClient>().RunAsync(cancellationToken);
}
catch
{
#pragma warning disable CA1508 // Avoid dead conditional code (false possitive)
if (status != Status.ST_OK)
#pragma warning restore CA1508 // Avoid dead conditional code
{
await SendOpCodeAsync(OpCode.OP_REP_IMPORT, status);
}
throw;
}
}
async Task HandleRequestDeviceListAsync(CancellationToken cancellationToken)
{
var exportedDevices = await ExportedDevice.GetAll(cancellationToken);
await SendOpCodeAsync(OpCode.OP_REP_DEVLIST, Status.ST_OK);
// reply count
var buf = new byte[4];
BinaryPrimitives.WriteUInt32BigEndian(buf, (uint)exportedDevices.Length);
await Stream.WriteAsync(buf, cancellationToken);
foreach (var exportedDevice in exportedDevices)
{
exportedDevice.Serialize(Stream, true);
}
}
public async Task <DeviceFile> ClaimDevice(ExportedDevice device)
{
var sw = new Stopwatch();
sw.Start();
while (true)
{
try
{
return(await ClaimDeviceOnce(device));
}
catch (FileNotFoundException)
{
if (sw.Elapsed > TimeSpan.FromSeconds(5))
{
throw;
}
await Task.Delay(100);
}
}
}
public async Task AddFilter(ExportedDevice device)
{
var filter = UsbFilter.Create(UsbFilterType.CAPTURE);
filter.SetMatch(UsbFilterIdx.VENDOR_ID, UsbFilterMatch.NUM_EXACT, device.VendorId);
filter.SetMatch(UsbFilterIdx.PRODUCT_ID, UsbFilterMatch.NUM_EXACT, device.ProductId);
filter.SetMatch(UsbFilterIdx.DEVICE_REV, UsbFilterMatch.NUM_EXACT, device.BcdDevice);
filter.SetMatch(UsbFilterIdx.DEVICE_CLASS, UsbFilterMatch.NUM_EXACT, device.DeviceClass);
filter.SetMatch(UsbFilterIdx.DEVICE_SUB_CLASS, UsbFilterMatch.NUM_EXACT, device.DeviceSubClass);
filter.SetMatch(UsbFilterIdx.DEVICE_PROTOCOL, UsbFilterMatch.NUM_EXACT, device.DeviceProtocol);
filter.SetMatch(UsbFilterIdx.PORT, UsbFilterMatch.NUM_EXACT, (ushort)device.DevNum);
var output = new byte[Marshal.SizeOf <UsbSupFltAddOut>()];
await UsbMonitor.IoControlAsync(VBoxUsb.IoControl.SUPUSBFLT_IOCTL_ADD_FILTER, StructToBytes(filter), output);
var fltAddOut = BytesToStruct <UsbSupFltAddOut>(output, 0);
if (fltAddOut.rc != 0 /* VINF_SUCCESS */)
{
throw new UnexpectedResultException($"SUPUSBFLT_IOCTL_ADD_FILTER failed with returnCode {fltAddOut.rc}");
}
}
public static async Task <ExportedDevice[]> GetAll(CancellationToken cancellationToken)
{
var exportedDevices = new SortedDictionary <string, ExportedDevice>();
using var deviceInfoSet = NativeMethods.SetupDiGetClassDevs(IntPtr.Zero, "USB", IntPtr.Zero, DiGetClassFlags.DIGCF_ALLCLASSES | DiGetClassFlags.DIGCF_PRESENT);
foreach (var devInfoData in EnumDeviceInfo(deviceInfoSet))
{
cancellationToken.ThrowIfCancellationRequested();
var instanceId = GetDevicePropertyString(deviceInfoSet, devInfoData, DEVPKEY_Device_InstanceId);
if (IsUsbHub(instanceId))
{
// device is itself a USB hub, which is not supported
continue;
}
var parentId = GetDevicePropertyString(deviceInfoSet, devInfoData, DEVPKEY_Device_Parent);
if (!IsUsbHub(parentId))
{
// parent is not a USB hub (which it must be for this device to be supported)
continue;
}
// OK, so the device is directly connected to a hub, but is not a hub itself ... this looks promising
GetBusId(deviceInfoSet, devInfoData, out var hubNum, out var connectionIndex);
var address = GetDevicePropertyUInt32(deviceInfoSet, devInfoData, DEVPKEY_Device_Address);
if (connectionIndex != address)
{
throw new NotSupportedException($"DEVPKEY_Device_Address ({address}) does not match DEVPKEY_Device_LocationInfo ({connectionIndex})");
}
// now query the parent USB hub for device details
{
cancellationToken.ThrowIfCancellationRequested();
using var hubs = NativeMethods.SetupDiGetClassDevs(GUID_DEVINTERFACE_USB_HUB, parentId, IntPtr.Zero, DiGetClassFlags.DIGCF_DEVICEINTERFACE | DiGetClassFlags.DIGCF_PRESENT);
var(_, interfaceData) = EnumDeviceInterfaces(hubs, GUID_DEVINTERFACE_USB_HUB).Single();
var hubPath = GetDeviceInterfaceDetail(hubs, interfaceData);
cancellationToken.ThrowIfCancellationRequested();
using var hubFile = new DeviceFile(hubPath);
using var cancellationTokenRegistration = cancellationToken.Register(() => hubFile.Dispose());
var data = new UsbNodeConnectionInformationEx()
{
ConnectionIndex = connectionIndex
};
var buf = StructToBytes(data);
await hubFile.IoControlAsync(IoControl.IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX, buf, buf);
BytesToStruct(buf, 0, out data);
var speed = MapWindowsSpeedToLinuxSpeed(data.Speed);
var data2 = new UsbNodeConnectionInformationExV2()
{
ConnectionIndex = connectionIndex,
Length = (uint)Marshal.SizeOf <UsbNodeConnectionInformationExV2>(),
SupportedUsbProtocols = UsbProtocols.Usb110 | UsbProtocols.Usb200 | UsbProtocols.Usb300,
};
var buf2 = StructToBytes(data2);
await hubFile.IoControlAsync(IoControl.IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX_V2, buf2, buf2);
BytesToStruct(buf2, 0, out data2);
if ((data2.SupportedUsbProtocols & UsbProtocols.Usb300) != 0)
{
if ((data2.Flags & UsbNodeConnectionInformationExV2Flags.DeviceIsOperatingAtSuperSpeedPlusOrHigher) != 0)
{
speed = Linux.UsbDeviceSpeed.USB_SPEED_SUPER_PLUS;
}
else if ((data2.Flags & UsbNodeConnectionInformationExV2Flags.DeviceIsOperatingAtSuperSpeedOrHigher) != 0)
{
speed = Linux.UsbDeviceSpeed.USB_SPEED_SUPER;
}
}
var exportedDevice = new ExportedDevice()
{
Path = instanceId,
BusNum = hubNum,
DevNum = connectionIndex,
Speed = speed,
VendorId = data.DeviceDescriptor.idVendor,
ProductId = data.DeviceDescriptor.idProduct,
BcdDevice = data.DeviceDescriptor.bcdDevice,
DeviceClass = data.DeviceDescriptor.bDeviceClass,
DeviceSubClass = data.DeviceDescriptor.bDeviceSubClass,
DeviceProtocol = data.DeviceDescriptor.bDeviceProtocol,
ConfigurationValue = data.CurrentConfigurationValue,
NumConfigurations = data.DeviceDescriptor.bNumConfigurations,
ConfigurationDescriptors = await GetConfigurationDescriptor(hubFile, connectionIndex, data.DeviceDescriptor.bNumConfigurations),
};
exportedDevices.Add(exportedDevice.BusId, exportedDevice);
}
}
return(exportedDevices.Values.ToArray());
}
async Task <DeviceFile> ClaimDeviceOnce(ExportedDevice device)
{
using var deviceInfoSet = NativeMethods.SetupDiGetClassDevs(GUID_CLASS_VBOXUSB, null, IntPtr.Zero, DiGetClassFlags.DIGCF_DEVICEINTERFACE | DiGetClassFlags.DIGCF_PRESENT);
if (deviceInfoSet.IsInvalid)
{
throw new Win32Exception("SetupDiGetClassDevs");
}
foreach (var(infoData, interfaceData) in EnumDeviceInterfaces(deviceInfoSet, GUID_CLASS_VBOXUSB))
{
GetBusId(deviceInfoSet, infoData, out var hubNum, out var connectionIndex);
if ((hubNum != device.BusNum) || (connectionIndex != device.DevNum))
{
continue;
}
var path = GetDeviceInterfaceDetail(deviceInfoSet, interfaceData);
var dev = new DeviceFile(path);
try
{
{
var output = new byte[Marshal.SizeOf <UsbSupVersion>()];
await dev.IoControlAsync(VBoxUsb.IoControl.SUPUSB_IOCTL_GET_VERSION, null, output);
BytesToStruct(output, 0, out UsbSupVersion version);
if ((version.major != USBDRV_MAJOR_VERSION) || (version.minor < USBDRV_MINOR_VERSION))
{
throw new NotSupportedException($"device version not supported: {version.major}.{version.minor}, expected {USBDRV_MAJOR_VERSION}.{USBDRV_MINOR_VERSION}");
}
}
{
await dev.IoControlAsync(VBoxUsb.IoControl.SUPUSB_IOCTL_IS_OPERATIONAL, null, null);
}
IntPtr hdev;
{
var getDev = new UsbSupGetDev();
var output = new byte[Marshal.SizeOf <UsbSupGetDev>()];
await dev.IoControlAsync(VBoxUsb.IoControl.SUPUSB_IOCTL_GET_DEVICE, StructToBytes(getDev), output);
BytesToStruct(output, 0, out getDev);
hdev = getDev.hDevice;
}
{
var getDev = new UsbSupGetDev()
{
hDevice = hdev,
};
var output = new byte[Marshal.SizeOf <UsbSupGetDevMon>()];
await UsbMonitor.IoControlAsync(VBoxUsb.IoControl.SUPUSBFLT_IOCTL_GET_DEVICE, StructToBytes(getDev), output);
var getDevMon = BytesToStruct <UsbSupGetDevMon>(output, 0);
}
{
var claimDev = new UsbSupClaimDev();
var output = new byte[Marshal.SizeOf <UsbSupClaimDev>()];
await dev.IoControlAsync(VBoxUsb.IoControl.SUPUSB_IOCTL_USB_CLAIM_DEVICE, StructToBytes(claimDev), output);
BytesToStruct(output, 0, out claimDev);
if (!claimDev.fClaimed)
{
throw new ProtocolViolationException("could not claim");
}
}
{
var getDev = new UsbSupGetDev()
{
hDevice = hdev,
};
var output = new byte[Marshal.SizeOf <UsbSupGetDevMon>()];
await UsbMonitor.IoControlAsync(VBoxUsb.IoControl.SUPUSBFLT_IOCTL_GET_DEVICE, StructToBytes(getDev), output);
var getDevMon = BytesToStruct <UsbSupGetDevMon>(output, 0);
}
var result = dev;
dev = null !;
return(result);
}
finally
{
dev?.Dispose();
}
}
throw new FileNotFoundException();
}