NTSTATUS CUsbDkHubFilterStrategy::PNPPreProcess(PIRP Irp)
{
auto irpStack = IoGetCurrentIrpStackLocation(Irp);
if ((irpStack->MinorFunction == IRP_MN_QUERY_DEVICE_RELATIONS) &&
(BusRelations == irpStack->Parameters.QueryDeviceRelations.Type))
{
return PostProcessOnSuccess(Irp,
[this](PIRP Irp)
{
CNonPagedDeviceRelations Relations;
auto status = Relations.Create((PDEVICE_RELATIONS)Irp->IoStatus.Information);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR, TRACE_FILTERDEVICE, "%!FUNC! Failed to create device relations object: %!STATUS!", status);
return;
}
TraceEvents(TRACE_LEVEL_ERROR, TRACE_FILTERDEVICE, "%!FUNC! Starting relations array processing:");
Relations.Dump();
DropRemovedDevices(Relations);
AddNewDevices(Relations);
WipeHiddenDevices(Relations);
TraceEvents(TRACE_LEVEL_ERROR, TRACE_FILTERDEVICE, "%!FUNC! Finished relations array processing");
});
}
return CUsbDkFilterStrategy::PNPPreProcess(Irp);
}
// This is called from the scan thread. Returns false if we failed to update the device list.
bool USBHost::UpdateDevices(const bool always_add_hooks)
{
if (Core::WantsDeterminism())
return true;
DeviceChangeHooks hooks;
std::set<u64> plugged_devices;
// If we failed to get a new, up-to-date list of devices, we cannot detect device removals.
if (!AddNewDevices(plugged_devices, hooks, always_add_hooks))
return false;
DetectRemovedDevices(plugged_devices, hooks);
DispatchHooks(hooks);
return true;
}
NTSTATUS CUsbDkHubFilterStrategy::PNPPreProcess(PIRP Irp)
{
auto irpStack = IoGetCurrentIrpStackLocation(Irp);
if ((irpStack->MinorFunction == IRP_MN_QUERY_DEVICE_RELATIONS) &&
(BusRelations == irpStack->Parameters.QueryDeviceRelations.Type))
{
return PostProcessOnSuccess(Irp,
[this](PIRP Irp)
{
CDeviceRelations Relations((PDEVICE_RELATIONS)Irp->IoStatus.Information);
DropRemovedDevices(Relations);
AddNewDevices(Relations);
WipeHiddenDevices(Relations);
});
}
return CUsbDkFilterStrategy::PNPPreProcess(Irp);
}
