Method ueventProcessUEvent

src/Library/UEventDeviceManager.cpp:313–340

  }

  void UEventDeviceManager::ueventProcessUEvent(UEvent uevent)
  {
    const std::string subsystem = uevent.getAttribute("SUBSYSTEM");
    const std::string devtype = uevent.getAttribute("DEVTYPE");
    const std::string action = uevent.getAttribute("ACTION");

    /*
     * We don't care about the event if it's not from the "usb" subsystem.
     * The device type attribute value is checked later based on the data
     * read from the sysfs uevent file in the device directory.
     */
    if (subsystem != "usb") {
      USBGUARD_LOG(Debug) << "Ignoring non-USB device:"
        << " subsystem=" << subsystem
        << " devtype=" << devtype
        << " action=" << action;
      return;
    }

    const std::string sysfs_devpath = uevent.getAttribute("DEVPATH");

    if (_enumeration) {
      _backlog.emplace_back(std::move(uevent));
    }
    else {
      ueventProcessAction(action, sysfs_devpath);
    }
  }

  void UEventDeviceManager::ueventProcessAction(const std::string& action, const std::string& sysfs_devpath)
  {