1 files changed, 181 insertions, 0 deletions
diff --git a/src/plugins/networkinformation/networkmanager/qnetworkmanagernetworkinformationbackend.cpp b/src/plugins/networkinformation/networkmanager/qnetworkmanagernetworkinformationbackend.cpp
new file mode 100644
index 0000000000..f583d1dcf6
--- /dev/null
+++ b/src/plugins/networkinformation/networkmanager/qnetworkmanagernetworkinformationbackend.cpp
@@ -0,0 +1,181 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qnetworkmanagernetworkinformationbackend.h"
+
+#include <QtCore/qglobal.h>
+#include <QtCore/private/qobject_p.h>
+
+#include <QtDBus/qdbusmessage.h>
+
+QT_BEGIN_NAMESPACE
+Q_DECLARE_LOGGING_CATEGORY(lcNetInfoNLM)
+Q_LOGGING_CATEGORY(lcNetInfoNM, "qt.network.info.networkmanager");
+
+namespace {
+QNetworkInformation::Reachability reachabilityFromNMState(QNetworkManagerInterface::NMState state)
+{
+    switch (state) {
+    case QNetworkManagerInterface::NM_STATE_UNKNOWN:
+    case QNetworkManagerInterface::NM_STATE_ASLEEP:
+    case QNetworkManagerInterface::NM_STATE_CONNECTING:
+        return QNetworkInformation::Reachability::Unknown;
+    case QNetworkManagerInterface::NM_STATE_DISCONNECTING: // No point in starting new connections:
+    case QNetworkManagerInterface::NM_STATE_DISCONNECTED:
+        return QNetworkInformation::Reachability::Disconnected;
+    case QNetworkManagerInterface::NM_STATE_CONNECTED_LOCAL:
+        return QNetworkInformation::Reachability::Local;
+    case QNetworkManagerInterface::NM_STATE_CONNECTED_SITE:
+        return QNetworkInformation::Reachability::Site;
+    case QNetworkManagerInterface::NM_STATE_CONNECTED_GLOBAL:
+        return QNetworkInformation::Reachability::Online;
+    }
+    return QNetworkInformation::Reachability::Unknown;
+}
+
+QNetworkInformation::TransportMedium
+transportMediumFromDeviceType(QNetworkManagerInterface::NMDeviceType type)
+{
+    switch (type) {
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_ETHERNET:
+        return QNetworkInformation::TransportMedium::Ethernet;
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_WIFI:
+        return QNetworkInformation::TransportMedium::WiFi;
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_BT:
+        return QNetworkInformation::TransportMedium::Bluetooth;
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_MODEM:
+        return QNetworkInformation::TransportMedium::Cellular;
+
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_UNKNOWN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_GENERIC:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_UNUSED1:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_UNUSED2:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_OLPC_MESH:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_WIMAX:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_INFINIBAND:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_BOND:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_VLAN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_ADSL:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_BRIDGE:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_TEAM:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_TUN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_IP_TUNNEL:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_MACVLAN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_VXLAN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_VETH:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_MACSEC:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_DUMMY:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_PPP:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_OVS_INTERFACE:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_OVS_PORT:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_OVS_BRIDGE:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_WPAN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_6LOWPAN:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_WIREGUARD:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_WIFI_P2P:
+    case QNetworkManagerInterface::NM_DEVICE_TYPE_VRF:
+        break;
+    }
+    // While the list is exhaustive of the enum there can be additional
+    // entries added in NetworkManager that isn't listed here
+    return QNetworkInformation::TransportMedium::Unknown;
+}
+
+bool isMeteredFromNMMetered(QNetworkManagerInterface::NMMetered metered)
+{
+    switch (metered) {
+    case QNetworkManagerInterface::NM_METERED_YES:
+    case QNetworkManagerInterface::NM_METERED_GUESS_YES:
+        return true;
+    case QNetworkManagerInterface::NM_METERED_NO:
+    case QNetworkManagerInterface::NM_METERED_GUESS_NO:
+    case QNetworkManagerInterface::NM_METERED_UNKNOWN:
+        return false;
+    }
+    Q_UNREACHABLE_RETURN(false);
+}
+} // unnamed namespace
+
+static QString backendName()
+{
+    return QStringView(QNetworkInformationBackend::PluginNames
+                       [QNetworkInformationBackend::PluginNamesLinuxIndex]).toString();
+}
+
+QString QNetworkManagerNetworkInformationBackend::name() const
+{
+    return backendName();
+}
+
+class QNetworkManagerNetworkInformationBackendFactory : public QNetworkInformationBackendFactory
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID QNetworkInformationBackendFactory_iid)
+    Q_INTERFACES(QNetworkInformationBackendFactory)
+public:
+    QNetworkManagerNetworkInformationBackendFactory() = default;
+    ~QNetworkManagerNetworkInformationBackendFactory() = default;
+    QString name() const override { return backendName(); }
+    QNetworkInformation::Features featuresSupported() const override
+    {
+        if (!QNetworkManagerInterfaceBase::networkManagerAvailable())
+            return {};
+        return QNetworkManagerNetworkInformationBackend::featuresSupportedStatic();
+    }
+
+    QNetworkInformationBackend *create(QNetworkInformation::Features requiredFeatures) const override
+    {
+        if ((requiredFeatures & featuresSupported()) != requiredFeatures)
+            return nullptr;
+        if (!QNetworkManagerInterfaceBase::networkManagerAvailable())
+            return nullptr;
+        auto backend = new QNetworkManagerNetworkInformationBackend();
+        if (!backend->isValid())
+            delete std::exchange(backend, nullptr);
+        return backend;
+    }
+private:
+    Q_DISABLE_COPY_MOVE(QNetworkManagerNetworkInformationBackendFactory)
+};
+
+QNetworkManagerNetworkInformationBackend::QNetworkManagerNetworkInformationBackend()
+{
+    if (!iface.isValid())
+        return;
+    iface.setBackend(this);
+    onStateChanged(iface.state());
+    onConnectivityChanged(iface.connectivityState());
+    onDeviceTypeChanged(iface.deviceType());
+    onMeteredChanged(iface.meteredState());
+}
+
+void QNetworkManagerNetworkInformationBackend::onStateChanged(
+        QNetworkManagerInterface::NMState newState)
+{
+    setReachability(reachabilityFromNMState(newState));
+}
+
+void QNetworkManagerNetworkInformationBackend::onConnectivityChanged(
+        QNetworkManagerInterface::NMConnectivityState connectivityState)
+{
+    const bool behindPortal =
+            (connectivityState == QNetworkManagerInterface::NM_CONNECTIVITY_PORTAL);
+    setBehindCaptivePortal(behindPortal);
+}
+
+void QNetworkManagerNetworkInformationBackend::onDeviceTypeChanged(
+        QNetworkManagerInterface::NMDeviceType newDevice)
+{
+    setTransportMedium(transportMediumFromDeviceType(newDevice));
+}
+
+void QNetworkManagerNetworkInformationBackend::onMeteredChanged(
+        QNetworkManagerInterface::NMMetered metered)
+{
+    setMetered(isMeteredFromNMMetered(metered));
+};
+
+QT_END_NAMESPACE
+
+#include "qnetworkmanagernetworkinformationbackend.moc"
+#include "moc_qnetworkmanagernetworkinformationbackend.cpp"