From 4763a3571f3301dd2da6d35636a94e4d1dc1f216 Mon Sep 17 00:00:00 2001
From: Lorn Potter <lorn.potter@gmail.com>
Date: Wed, 29 Oct 2014 19:40:43 +1000
Subject: [PATCH] Use a property cache to cut down on blocking calls

Refactor old code
Stop memory leaks
Properly support mobile data (ofono)

Change-Id: I7f23882ee0ee345a049a4a93ddd452b6d2e53710
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
---
 src/plugins/bearer/connman/connman.pro        |   4 +-
 src/plugins/bearer/connman/qconnmanengine.h   |   2 +-
 .../qofonoservice_linux.cpp                   |  89 ++-
 .../qofonoservice_linux_p.h                   |  25 +-
 .../bearer/networkmanager/networkmanager.pro  |   6 +-
 .../networkmanager/qnetworkmanagerengine.cpp  | 364 ++++-----
 .../networkmanager/qnetworkmanagerengine.h    |  22 +-
 .../networkmanager/qnetworkmanagerservice.cpp | 693 +++++++++++++-----
 .../networkmanager/qnetworkmanagerservice.h   | 105 ++-
 .../bearer/networkmanager/qnmdbushelper.cpp   | 140 ----
 .../bearer/networkmanager/qnmdbushelper.h     |  73 --
 11 files changed, 855 insertions(+), 668 deletions(-)
 rename src/plugins/bearer/{connman => linux_common}/qofonoservice_linux.cpp (76%)
 rename src/plugins/bearer/{connman => linux_common}/qofonoservice_linux_p.h (88%)
 delete mode 100644 src/plugins/bearer/networkmanager/qnmdbushelper.cpp
 delete mode 100644 src/plugins/bearer/networkmanager/qnmdbushelper.h

diff --git a/src/plugins/bearer/connman/connman.pro b/src/plugins/bearer/connman/connman.pro
index bc4efe8b621..efa13a6ebdc 100644
--- a/src/plugins/bearer/connman/connman.pro
+++ b/src/plugins/bearer/connman/connman.pro
@@ -8,14 +8,14 @@ QT = core network-private dbus
 CONFIG += link_pkgconfig
 
 HEADERS += qconnmanservice_linux_p.h \
-           qofonoservice_linux_p.h \
+           ../linux_common/qofonoservice_linux_p.h \
            qconnmanengine.h \
            ../qnetworksession_impl.h \
            ../qbearerengine_impl.h
 
 SOURCES += main.cpp \
            qconnmanservice_linux.cpp \
-           qofonoservice_linux.cpp \
+           ../linux_common/qofonoservice_linux.cpp \
            qconnmanengine.cpp \
            ../qnetworksession_impl.cpp
 
diff --git a/src/plugins/bearer/connman/qconnmanengine.h b/src/plugins/bearer/connman/qconnmanengine.h
index 52e8b384a04..a995d8ed25d 100644
--- a/src/plugins/bearer/connman/qconnmanengine.h
+++ b/src/plugins/bearer/connman/qconnmanengine.h
@@ -48,7 +48,7 @@
 #include "../qbearerengine_impl.h"
 
 #include "qconnmanservice_linux_p.h"
-#include "qofonoservice_linux_p.h"
+#include "../linux_common/qofonoservice_linux_p.h"
 
 #include <QMap>
 #include <QVariant>
diff --git a/src/plugins/bearer/connman/qofonoservice_linux.cpp b/src/plugins/bearer/linux_common/qofonoservice_linux.cpp
similarity index 76%
rename from src/plugins/bearer/connman/qofonoservice_linux.cpp
rename to src/plugins/bearer/linux_common/qofonoservice_linux.cpp
index 2ce2bd40e45..e994ebf2cef 100644
--- a/src/plugins/bearer/connman/qofonoservice_linux.cpp
+++ b/src/plugins/bearer/linux_common/qofonoservice_linux.cpp
@@ -95,14 +95,12 @@ QStringList QOfonoManagerInterface::getModems()
 {
     if (modemList.isEmpty()) {
         QList<QVariant> argumentList;
-        QDBusPendingReply<PathPropertiesList> reply = asyncCallWithArgumentList(QLatin1String("GetModems"), argumentList);
+        QDBusPendingReply<PathPropertiesList> reply = callWithArgumentList(QDBus::Block, QLatin1String("GetModems"), argumentList);
         reply.waitForFinished();
         if (!reply.isError()) {
             foreach (ObjectPathProperties modem, reply.value()) {
                 modemList << modem.path.path();
             }
-        } else {
-            qDebug() << reply.error().message();
         }
     }
 
@@ -175,7 +173,7 @@ QVariantMap QOfonoModemInterface::getProperties()
 {
     if (propertiesMap.isEmpty()) {
         QList<QVariant> argumentList;
-        QDBusPendingReply<QVariantMap> reply = asyncCallWithArgumentList(QLatin1String("GetProperties"), argumentList);
+        QDBusPendingReply<QVariantMap> reply = callWithArgumentList(QDBus::Block, QLatin1String("GetProperties"), argumentList);
         if (!reply.isError()) {
             propertiesMap = reply.value();
         }
@@ -187,7 +185,8 @@ QVariant QOfonoModemInterface::getProperty(const QString &property)
 {
     QVariant var;
     QVariantMap map = getProperties();
-    var = map.value(property);
+    if (map.contains(property))
+        var = map.value(property);
     return var;
 }
 
@@ -214,7 +213,8 @@ QVariant QOfonoNetworkRegistrationInterface::getProperty(const QString &property
 {
     QVariant var;
     QVariantMap map = getProperties();
-    var = map.value(property);
+    if (map.contains(property))
+        var = map.value(property);
     return var;
 }
 
@@ -222,12 +222,10 @@ QVariantMap QOfonoNetworkRegistrationInterface::getProperties()
 {
     if (propertiesMap.isEmpty()) {
         QList<QVariant> argumentList;
-        QDBusPendingReply<QVariantMap> reply = asyncCallWithArgumentList(QLatin1String("GetProperties"), argumentList);
+        QDBusPendingReply<QVariantMap> reply = callWithArgumentList(QDBus::Block, QLatin1String("GetProperties"), argumentList);
         reply.waitForFinished();
         if (!reply.isError()) {
             propertiesMap = reply.value();
-        } else {
-            qDebug() << reply.error().message();
         }
     }
     return propertiesMap;
@@ -270,11 +268,18 @@ bool QOfonoDataConnectionManagerInterface::roamingAllowed()
     return qdbus_cast<bool>(var);
 }
 
+QString QOfonoDataConnectionManagerInterface::bearer()
+{
+    QVariant var = getProperty(QStringLiteral("Bearer"));
+    return qdbus_cast<QString>(var);
+}
+
 QVariant QOfonoDataConnectionManagerInterface::getProperty(const QString &property)
 {
     QVariant var;
     QVariantMap map = getProperties();
-    var = map.value(property);
+    if (map.contains(property))
+        var = map.value(property);
     return var;
 }
 
@@ -282,7 +287,7 @@ QVariantMap QOfonoDataConnectionManagerInterface::getProperties()
 {
     if (propertiesMap.isEmpty()) {
         QList<QVariant> argumentList;
-        QDBusPendingReply<QVariantMap> reply = asyncCallWithArgumentList(QLatin1String("GetProperties"), argumentList);
+        QDBusPendingReply<QVariantMap> reply = callWithArgumentList(QDBus::Block, QLatin1String("GetProperties"), argumentList);
         if (!reply.isError()) {
             propertiesMap = reply.value();
         }
@@ -297,6 +302,68 @@ void QOfonoDataConnectionManagerInterface::propertyChanged(const QString &name,
         Q_EMIT roamingAllowedChanged(value.variant().toBool());
 }
 
+
+QOfonoConnectionContextInterface::QOfonoConnectionContextInterface(const QString &dbusPathName, QObject *parent)
+    : QDBusAbstractInterface(QLatin1String(OFONO_SERVICE),
+                             dbusPathName,
+                             OFONO_CONNECTION_CONTEXT_INTERFACE,
+                             QDBusConnection::systemBus(), parent)
+{
+    QDBusConnection::systemBus().connect(QLatin1String(OFONO_SERVICE),
+                                         path(),
+                                         QLatin1String(OFONO_MODEM_INTERFACE),
+                                         QLatin1String("PropertyChanged"),
+                                         this,SLOT(propertyChanged(QString,QDBusVariant)));
+}
+
+QOfonoConnectionContextInterface::~QOfonoConnectionContextInterface()
+{
+}
+
+QVariantMap QOfonoConnectionContextInterface::getProperties()
+{
+    if (propertiesMap.isEmpty()) {
+        QList<QVariant> argumentList;
+        QDBusPendingReply<QVariantMap> reply = callWithArgumentList(QDBus::Block, QLatin1String("GetProperties"), argumentList);
+        if (!reply.isError()) {
+            propertiesMap = reply.value();
+        }
+    }
+    return propertiesMap;
+}
+
+void QOfonoConnectionContextInterface::propertyChanged(const QString &name, const QDBusVariant &value)
+{
+    propertiesMap[name] = value.variant();
+}
+
+QVariant QOfonoConnectionContextInterface::getProperty(const QString &property)
+{
+    QVariant var;
+    QVariantMap map = getProperties();
+    if (map.contains(property))
+        var = map.value(property);
+    return var;
+}
+
+bool QOfonoConnectionContextInterface::active()
+{
+    QVariant var = getProperty(QStringLiteral("Active"));
+    return qdbus_cast<bool>(var);
+}
+
+QString QOfonoConnectionContextInterface::accessPointName()
+{
+    QVariant var = getProperty(QStringLiteral("AccessPointName"));
+    return qdbus_cast<QString>(var);
+}
+
+QString QOfonoConnectionContextInterface::name()
+{
+    QVariant var = getProperty(QStringLiteral("Name"));
+    return qdbus_cast<QString>(var);
+}
+
 QT_END_NAMESPACE
 
 #endif // QT_NO_DBUS
diff --git a/src/plugins/bearer/connman/qofonoservice_linux_p.h b/src/plugins/bearer/linux_common/qofonoservice_linux_p.h
similarity index 88%
rename from src/plugins/bearer/connman/qofonoservice_linux_p.h
rename to src/plugins/bearer/linux_common/qofonoservice_linux_p.h
index 8a6a932e0d6..2b3d43deb5b 100644
--- a/src/plugins/bearer/connman/qofonoservice_linux_p.h
+++ b/src/plugins/bearer/linux_common/qofonoservice_linux_p.h
@@ -67,6 +67,7 @@
 #define OFONO_MODEM_INTERFACE                    "org.ofono.Modem"
 #define OFONO_NETWORK_REGISTRATION_INTERFACE     "org.ofono.NetworkRegistration"
 #define OFONO_DATA_CONNECTION_MANAGER_INTERFACE  "org.ofono.ConnectionManager"
+#define OFONO_CONNECTION_CONTEXT_INTERFACE       "org.ofono.ConnectionContext"
 
 QT_BEGIN_NAMESPACE
 
@@ -152,17 +153,39 @@ public:
 
     QStringList contexts();
     bool roamingAllowed();
+    QVariant getProperty(const QString &);
+    QString bearer();
 Q_SIGNALS:
     void roamingAllowedChanged(bool);
 private:
     QVariantMap getProperties();
     QVariantMap propertiesMap;
-    QVariant getProperty(const QString &);
     QStringList contextList;
 private slots:
     void propertyChanged(const QString &, const QDBusVariant &value);
 };
 
+class QOfonoConnectionContextInterface : public QDBusAbstractInterface
+{
+    Q_OBJECT
+
+public:
+
+    explicit QOfonoConnectionContextInterface(const QString &dbusPathName, QObject *parent = 0);
+    ~QOfonoConnectionContextInterface();
+
+    QVariant getProperty(const QString &);
+    bool active();
+    QString accessPointName();
+    QString name();
+
+Q_SIGNALS:
+private:
+    QVariantMap getProperties();
+    QVariantMap propertiesMap;
+private slots:
+    void propertyChanged(const QString &, const QDBusVariant &value);
+};
 
 QT_END_NAMESPACE
 
diff --git a/src/plugins/bearer/networkmanager/networkmanager.pro b/src/plugins/bearer/networkmanager/networkmanager.pro
index 1ed9bfaa1b4..b3a270615cc 100644
--- a/src/plugins/bearer/networkmanager/networkmanager.pro
+++ b/src/plugins/bearer/networkmanager/networkmanager.pro
@@ -6,16 +6,16 @@ load(qt_plugin)
 
 QT = core network-private dbus
 
-HEADERS += qnmdbushelper.h \
-           qnetworkmanagerservice.h \
+HEADERS += qnetworkmanagerservice.h \
            qnetworkmanagerengine.h \
+           ../linux_common/qofonoservice_linux_p.h \
            ../qnetworksession_impl.h \
            ../qbearerengine_impl.h
 
 SOURCES += main.cpp \
-           qnmdbushelper.cpp \
            qnetworkmanagerservice.cpp \
            qnetworkmanagerengine.cpp \
+           ../linux_common/qofonoservice_linux.cpp \
            ../qnetworksession_impl.cpp
 
 OTHER_FILES += networkmanager.json
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp
index 5f49ea0b6de..f07d7b242b3 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.cpp
@@ -47,6 +47,7 @@
 #include <QDBusInterface>
 #include <QDBusMessage>
 #include <QDBusReply>
+#include "../linux_common/qofonoservice_linux_p.h"
 
 #ifndef QT_NO_BEARERMANAGEMENT
 #ifndef QT_NO_DBUS
@@ -57,44 +58,55 @@ QNetworkManagerEngine::QNetworkManagerEngine(QObject *parent)
 :   QBearerEngineImpl(parent),
     managerInterface(new QNetworkManagerInterface(this)),
     systemSettings(new QNetworkManagerSettings(NM_DBUS_SERVICE, this)),
-    userSettings(new QNetworkManagerSettings(NM_DBUS_SERVICE, this))
+    ofonoManager(new QOfonoManagerInterface(this)),
+    ofonoNetwork(0),
+    ofonoContextManager(0)
 {
+
     if (!managerInterface->isValid())
         return;
 
-    managerInterface->setConnections();
+    qDBusRegisterMetaType<QNmSettingsMap>();
+
     connect(managerInterface, SIGNAL(deviceAdded(QDBusObjectPath)),
             this, SLOT(deviceAdded(QDBusObjectPath)));
     connect(managerInterface, SIGNAL(deviceRemoved(QDBusObjectPath)),
             this, SLOT(deviceRemoved(QDBusObjectPath)));
     connect(managerInterface, SIGNAL(activationFinished(QDBusPendingCallWatcher*)),
             this, SLOT(activationFinished(QDBusPendingCallWatcher*)));
-    connect(managerInterface, SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)),
-            this, SLOT(interfacePropertiesChanged(QString,QMap<QString,QVariant>)));
-
-    qDBusRegisterMetaType<QNmSettingsMap>();
+    connect(managerInterface, SIGNAL(propertiesChanged(QMap<QString,QVariant>)),
+            this, SLOT(interfacePropertiesChanged(QMap<QString,QVariant>)));
+    managerInterface->setConnections();
 
-    systemSettings->setConnections();
     connect(systemSettings, SIGNAL(newConnection(QDBusObjectPath)),
             this, SLOT(newConnection(QDBusObjectPath)));
-
-    userSettings->setConnections();
-    connect(userSettings, SIGNAL(newConnection(QDBusObjectPath)),
-            this, SLOT(newConnection(QDBusObjectPath)));
+    systemSettings->setConnections();
 }
 
 QNetworkManagerEngine::~QNetworkManagerEngine()
 {
     qDeleteAll(connections);
+    connections.clear();
     qDeleteAll(accessPoints);
+    accessPoints.clear();
     qDeleteAll(wirelessDevices);
-    qDeleteAll(activeConnections);
+    wirelessDevices.clear();
+    qDeleteAll(activeConnectionsList);
+    activeConnectionsList.clear();
+    qDeleteAll(interfaceDevices);
+    interfaceDevices.clear();
+
+    connectionInterfaces.clear();
 }
 
 void QNetworkManagerEngine::initialize()
 {
     QMutexLocker locker(&mutex);
 
+    connect(ofonoManager,SIGNAL(modemChanged()),this,SLOT(changedModem()));
+    ofonoNetwork = new QOfonoNetworkRegistrationInterface(ofonoManager->currentModem(),this);
+    ofonoContextManager = new QOfonoDataConnectionManagerInterface(ofonoManager->currentModem(),this);
+
     // Get current list of access points.
     foreach (const QDBusObjectPath &devicePath, managerInterface->getDevices()) {
         locker.unlock();
@@ -102,66 +114,44 @@ void QNetworkManagerEngine::initialize()
         locker.relock();
     }
 
-    // Get connections.
+    // Get active connections.
+    foreach (const QDBusObjectPath &acPath, managerInterface->activeConnections()) {
 
-    foreach (const QDBusObjectPath &settingsPath, systemSettings->listConnections()) {
-        locker.unlock();
-        if (!hasIdentifier(settingsPath.path()))
-            newConnection(settingsPath, systemSettings); //add system connection configs
-        locker.relock();
+        QNetworkManagerConnectionActive *activeConnection =
+                new QNetworkManagerConnectionActive(acPath.path(),this);
+        activeConnectionsList.insert(acPath.path(), activeConnection);
+        connect(activeConnection, SIGNAL(propertiesChanged(QMap<QString,QVariant>)),
+                this, SLOT(activeConnectionPropertiesChanged(QMap<QString,QVariant>)));
+        activeConnection->setConnections();
+
+        QList<QDBusObjectPath> devices = activeConnection->devices();
+        if (!devices.isEmpty()) {
+            QNetworkManagerInterfaceDevice device(devices.at(0).path(),this);
+            connectionInterfaces.insert(activeConnection->connection().path(),device.networkInterface());
+        }
     }
 
-    foreach (const QDBusObjectPath &settingsPath, userSettings->listConnections()) {
+    // Get connections.
+    foreach (const QDBusObjectPath &settingsPath, systemSettings->listConnections()) {
         locker.unlock();
         if (!hasIdentifier(settingsPath.path()))
-            newConnection(settingsPath, userSettings);
+            newConnection(settingsPath, systemSettings); //add system connection configs
         locker.relock();
     }
 
-    // Get active connections.
-    foreach (const QDBusObjectPath &acPath, managerInterface->activeConnections()) {
-        QNetworkManagerConnectionActive *activeConnection =
-            new QNetworkManagerConnectionActive(acPath.path(),this);
-        activeConnections.insert(acPath.path(), activeConnection);
-
-        activeConnection->setConnections();
-        connect(activeConnection, SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)),
-                this, SLOT(activeConnectionPropertiesChanged(QString,QMap<QString,QVariant>)));
-    }
     Q_EMIT updateCompleted();
 }
 
 bool QNetworkManagerEngine::networkManagerAvailable() const
 {
-    QMutexLocker locker(&mutex);
-
     return managerInterface->isValid();
 }
 
-QString QNetworkManagerEngine::getInterfaceFromId(const QString &id)
+QString QNetworkManagerEngine::getInterfaceFromId(const QString &settingsPath)
 {
-    QMutexLocker locker(&mutex);
-
-    foreach (const QDBusObjectPath &acPath, managerInterface->activeConnections()) {
-        QNetworkManagerConnectionActive activeConnection(acPath.path());
-
-        const QString identifier = activeConnection.connection().path();
-
-        if (id == identifier) {
-            QList<QDBusObjectPath> devices = activeConnection.devices();
-
-            if (devices.isEmpty())
-                continue;
-
-            QNetworkManagerInterfaceDevice device(devices.at(0).path());
-            return device.networkInterface();
-        }
-    }
-
-    return QString();
+    return connectionInterfaces.value(settingsPath);
 }
 
-
 bool QNetworkManagerEngine::hasIdentifier(const QString &id)
 {
     QMutexLocker locker(&mutex);
@@ -177,35 +167,34 @@ void QNetworkManagerEngine::connectToId(const QString &id)
     if (!connection)
         return;
 
-    QNmSettingsMap map = connection->getSettings();
-    const QString connectionType = map.value("connection").value("type").toString();
+    NMDeviceType connectionType = connection->getType();
 
     QString dbusDevicePath;
-    foreach (const QDBusObjectPath &devicePath, managerInterface->getDevices()) {
-        QNetworkManagerInterfaceDevice device(devicePath.path());
-        if (device.deviceType() == DEVICE_TYPE_ETHERNET &&
-            connectionType == QLatin1String("802-3-ethernet")) {
-            dbusDevicePath = devicePath.path();
+    const QString settingsPath = connection->connectionInterface()->path();
+    QString specificPath = configuredAccessPoints.key(settingsPath);
+
+    QHashIterator<QString, QNetworkManagerInterfaceDevice*> i(interfaceDevices);
+    while (i.hasNext()) {
+        i.next();
+        if (i.value()->deviceType() == DEVICE_TYPE_ETHERNET &&
+            connectionType == DEVICE_TYPE_ETHERNET) {
+            dbusDevicePath = i.key();
             break;
-        } else if (device.deviceType() == DEVICE_TYPE_WIFI &&
-                   connectionType == QLatin1String("802-11-wireless")) {
-            dbusDevicePath = devicePath.path();
+        } else if (i.value()->deviceType() == DEVICE_TYPE_WIFI &&
+                   connectionType == DEVICE_TYPE_WIFI) {
+            dbusDevicePath = i.key();
             break;
-        } else if (device.deviceType() == DEVICE_TYPE_MODEM &&
-                connectionType == QLatin1String("gsm")) {
-            dbusDevicePath = devicePath.path();
+        } else if (i.value()->deviceType() == DEVICE_TYPE_MODEM &&
+                connectionType == DEVICE_TYPE_MODEM) {
+            dbusDevicePath = i.key();
             break;
         }
     }
 
-    const QString service = connection->connectionInterface()->service();
-    const QString settingsPath = connection->connectionInterface()->path();
-    QString specificPath = configuredAccessPoints.key(settingsPath);
-
     if (specificPath.isEmpty())
         specificPath = "/";
 
-    managerInterface->activateConnection(service, QDBusObjectPath(settingsPath),
+    managerInterface->activateConnection(QDBusObjectPath(settingsPath),
                                   QDBusObjectPath(dbusDevicePath), QDBusObjectPath(specificPath));
 }
 
@@ -221,13 +210,11 @@ void QNetworkManagerEngine::disconnectFromId(const QString &id)
         return;
     }
 
-    foreach (const QDBusObjectPath &acPath, managerInterface->activeConnections()) {
-        QNetworkManagerConnectionActive activeConnection(acPath.path());
-
-        const QString identifier = activeConnection.connection().path();
-
-        if (id == identifier && accessPointConfigurations.contains(id)) {
-            managerInterface->deactivateConnection(acPath);
+    QHashIterator<QString, QNetworkManagerConnectionActive*> i(activeConnectionsList);
+    while (i.hasNext()) {
+        i.next();
+        if (id == i.value()->connection().path() && accessPointConfigurations.contains(id)) {
+            managerInterface->deactivateConnection(QDBusObjectPath(i.key()));
             break;
         }
     }
@@ -250,12 +237,9 @@ void QNetworkManagerEngine::scanFinished()
     QMetaObject::invokeMethod(this, "updateCompleted", Qt::QueuedConnection);
 }
 
-void QNetworkManagerEngine::interfacePropertiesChanged(const QString &path,
-                                                       const QMap<QString, QVariant> &properties)
+void QNetworkManagerEngine::interfacePropertiesChanged(const QMap<QString, QVariant> &properties)
 {
-    Q_UNUSED(path)
     QMutexLocker locker(&mutex);
-
     QMapIterator<QString, QVariant> i(properties);
     while (i.hasNext()) {
         i.next();
@@ -267,22 +251,20 @@ void QNetworkManagerEngine::interfacePropertiesChanged(const QString &path,
                 qdbus_cast<QList<QDBusObjectPath> >(i.value().value<QDBusArgument>());
 
             QStringList identifiers = accessPointConfigurations.keys();
-            foreach (const QString &id, identifiers)
-                QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(id);
-
-            QStringList priorActiveConnections = this->activeConnections.keys();
+            QStringList priorActiveConnections = activeConnectionsList.keys();
 
             foreach (const QDBusObjectPath &acPath, activeConnections) {
                 priorActiveConnections.removeOne(acPath.path());
                 QNetworkManagerConnectionActive *activeConnection =
-                    this->activeConnections.value(acPath.path());
+                    activeConnectionsList.value(acPath.path());
+
                 if (!activeConnection) {
                     activeConnection = new QNetworkManagerConnectionActive(acPath.path(),this);
-                    this->activeConnections.insert(acPath.path(), activeConnection);
+                    activeConnectionsList.insert(acPath.path(), activeConnection);
 
+                    connect(activeConnection, SIGNAL(propertiesChanged(QMap<QString,QVariant>)),
+                            this, SLOT(activeConnectionPropertiesChanged(QMap<QString,QVariant>)));
                     activeConnection->setConnections();
-                    connect(activeConnection, SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)),
-                            this, SLOT(activeConnectionPropertiesChanged(QString,QMap<QString,QVariant>)));
                 }
 
                 const QString id = activeConnection->connection().path();
@@ -295,6 +277,11 @@ void QNetworkManagerEngine::interfacePropertiesChanged(const QString &path,
                     if (activeConnection->state() == NM_ACTIVE_CONNECTION_STATE_ACTIVATED &&
                         ptr->state != QNetworkConfiguration::Active) {
                         ptr->state = QNetworkConfiguration::Active;
+
+                        if (activeConnectionsList.value(id) && activeConnectionsList.value(id)->defaultRoute()
+                                && managerInterface->state() < QNetworkManagerInterface::NM_STATE_CONNECTED_GLOBAL) {
+                            ptr->purpose = QNetworkConfiguration::PrivatePurpose;
+                        }
                         ptr->mutex.unlock();
 
                         locker.unlock();
@@ -307,7 +294,7 @@ void QNetworkManagerEngine::interfacePropertiesChanged(const QString &path,
             }
 
             while (!priorActiveConnections.isEmpty())
-                delete this->activeConnections.take(priorActiveConnections.takeFirst());
+                delete activeConnectionsList.take(priorActiveConnections.takeFirst());
 
             while (!identifiers.isEmpty()) {
                 QNetworkConfigurationPrivatePointer ptr =
@@ -330,14 +317,13 @@ void QNetworkManagerEngine::interfacePropertiesChanged(const QString &path,
     }
 }
 
-void QNetworkManagerEngine::activeConnectionPropertiesChanged(const QString &path,
-                                                              const QMap<QString, QVariant> &properties)
+void QNetworkManagerEngine::activeConnectionPropertiesChanged(const QMap<QString, QVariant> &properties)
 {
     QMutexLocker locker(&mutex);
 
     Q_UNUSED(properties)
 
-    QNetworkManagerConnectionActive *activeConnection = activeConnections.value(path);
+    QNetworkManagerConnectionActive *activeConnection = qobject_cast<QNetworkManagerConnectionActive *>(sender());
 
     if (!activeConnection)
         return;
@@ -347,8 +333,13 @@ void QNetworkManagerEngine::activeConnectionPropertiesChanged(const QString &pat
     QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(id);
     if (ptr) {
         ptr->mutex.lock();
-        if (activeConnection->state() == NM_ACTIVE_CONNECTION_STATE_ACTIVATED &&
-            ptr->state != QNetworkConfiguration::Active) {
+        if (properties.value("State").toUInt() == NM_ACTIVE_CONNECTION_STATE_ACTIVATED) {
+            QList<QDBusObjectPath> devices = activeConnection->devices();
+            if (!devices.isEmpty()) {
+                QNetworkManagerInterfaceDevice device(devices.at(0).path(),this);
+                connectionInterfaces.insert(id,device.networkInterface());
+            }
+
             ptr->state |= QNetworkConfiguration::Active;
             ptr->mutex.unlock();
 
@@ -356,22 +347,17 @@ void QNetworkManagerEngine::activeConnectionPropertiesChanged(const QString &pat
             emit configurationChanged(ptr);
             locker.relock();
         } else {
+            connectionInterfaces.remove(id);
             ptr->mutex.unlock();
         }
     }
 }
 
-void QNetworkManagerEngine::devicePropertiesChanged(const QString &/*path*/,quint32 /*state*/)
-{
-//    Q_UNUSED(path);
-//    Q_UNUSED(state)
-}
-
-void QNetworkManagerEngine::deviceConnectionsChanged(const QStringList &activeConnectionsList)
+void QNetworkManagerEngine::deviceConnectionsChanged(const QStringList &connectionsList)
 {
     QMutexLocker locker(&mutex);
     for (int i = 0; i < connections.count(); ++i) {
-        if (activeConnectionsList.contains(connections.at(i)->connectionInterface()->path()))
+        if (connectionsList.contains(connections.at(i)->connectionInterface()->path()))
             continue;
 
         const QString settingsPath = connections.at(i)->connectionInterface()->path();
@@ -392,27 +378,23 @@ void QNetworkManagerEngine::deviceConnectionsChanged(const QStringList &activeCo
 
 void QNetworkManagerEngine::deviceAdded(const QDBusObjectPath &path)
 {
-    QMutexLocker locker(&mutex);
     QNetworkManagerInterfaceDevice *iDevice;
     iDevice = new QNetworkManagerInterfaceDevice(path.path(),this);
     connect(iDevice,SIGNAL(connectionsChanged(QStringList)),
             this,SLOT(deviceConnectionsChanged(QStringList)));
 
-    connect(iDevice,SIGNAL(stateChanged(QString,quint32)),
-            this,SLOT(devicePropertiesChanged(QString,quint32)));
     iDevice->setConnections();
     interfaceDevices.insert(path.path(),iDevice);
-
     if (iDevice->deviceType() == DEVICE_TYPE_WIFI) {
         QNetworkManagerInterfaceDeviceWireless *wirelessDevice =
             new QNetworkManagerInterfaceDeviceWireless(iDevice->connectionInterface()->path(),this);
 
-        wirelessDevice->setConnections();
         connect(wirelessDevice, SIGNAL(accessPointAdded(QString)),
                 this, SLOT(newAccessPoint(QString)));
         connect(wirelessDevice, SIGNAL(accessPointRemoved(QString)),
                 this, SLOT(removeAccessPoint(QString)));
         connect(wirelessDevice,SIGNAL(scanDone()),this,SLOT(scanFinished()));
+        wirelessDevice->setConnections();
 
         foreach (const QDBusObjectPath &apPath, wirelessDevice->getAccessPoints())
             newAccessPoint(apPath.path());
@@ -444,10 +426,10 @@ void QNetworkManagerEngine::newConnection(const QDBusObjectPath &path,
     if (!settings)
         settings = qobject_cast<QNetworkManagerSettings *>(sender());
 
-    if (!settings)
+    if (!settings) {
         return;
+    }
 
-    settings->deleteLater();
     QNetworkManagerSettingsConnection *connection =
         new QNetworkManagerSettingsConnection(settings->connectionInterface()->service(),
                                               path.path(),this);
@@ -482,12 +464,10 @@ void QNetworkManagerEngine::newConnection(const QDBusObjectPath &path,
         parseConnection(settingsPath, connection->getSettings());
 
     // Check if connection is active.
-    foreach (const QDBusObjectPath &acPath, managerInterface->activeConnections()) {
-        QNetworkManagerConnectionActive activeConnection(acPath.path());
-
-        if (activeConnection.defaultRoute() &&
-            activeConnection.connection().path() == settingsPath &&
-            activeConnection.state() == NM_ACTIVE_CONNECTION_STATE_ACTIVATED) {
+    QHashIterator<QString, QNetworkManagerConnectionActive*> i(activeConnectionsList);
+    while (i.hasNext()) {
+        i.next();
+        if (i.value()->connection().path() == settingsPath) {
             cpPriv->state |= QNetworkConfiguration::Active;
             break;
         }
@@ -505,6 +485,7 @@ void QNetworkManagerEngine::removeConnection(const QString &path)
 
     QNetworkManagerSettingsConnection *connection =
         qobject_cast<QNetworkManagerSettingsConnection *>(sender());
+
     if (!connection)
         return;
 
@@ -525,6 +506,7 @@ void QNetworkManagerEngine::removeConnection(const QString &path)
     while (i.hasNext()) {
         i.next();
         if (i.value() == path) {
+            configuredAccessPoints.remove(i.key());
             newAccessPoint(i.key());
         }
     }
@@ -575,10 +557,9 @@ void QNetworkManagerEngine::updateConnection()
 void QNetworkManagerEngine::activationFinished(QDBusPendingCallWatcher *watcher)
 {
     QMutexLocker locker(&mutex);
-
+    QDBusPendingReply<QDBusObjectPath> reply(*watcher);
     watcher->deleteLater();
 
-    QDBusPendingReply<QDBusObjectPath> reply(*watcher);
     if (!reply.isError()) {
         QDBusObjectPath result = reply.value();
 
@@ -620,15 +601,14 @@ void QNetworkManagerEngine::newAccessPoint(const QString &path)
     if (okToAdd) {
         accessPoints.append(accessPoint);
         accessPoint->setConnections();
-        connect(accessPoint, SIGNAL(propertiesChanged(QMap<QString,QVariant>)),
-                this, SLOT(updateAccessPoint(QMap<QString,QVariant>)));
     }
-
     // Check if configuration exists for connection.
     if (!accessPoint->ssid().isEmpty()) {
+
         for (int i = 0; i < connections.count(); ++i) {
             QNetworkManagerSettingsConnection *connection = connections.at(i);
             const QString settingsPath = connection->connectionInterface()->path();
+
             if (accessPoint->ssid() == connection->getSsid()) {
                 if (!configuredAccessPoints.contains(path)) {
                     configuredAccessPoints.insert(path,settingsPath);
@@ -655,11 +635,7 @@ void QNetworkManagerEngine::newAccessPoint(const QString &path)
     ptr->isValid = true;
     ptr->id = path;
     ptr->type = QNetworkConfiguration::InternetAccessPoint;
-    if (accessPoint->flags() == NM_802_11_AP_FLAGS_PRIVACY) {
-        ptr->purpose = QNetworkConfiguration::PrivatePurpose;
-    } else {
-        ptr->purpose = QNetworkConfiguration::PublicPurpose;
-    }
+    ptr->purpose = QNetworkConfiguration::PublicPurpose;
     ptr->state = QNetworkConfiguration::Undefined;
     ptr->bearerType = QNetworkConfiguration::BearerWLAN;
 
@@ -674,13 +650,13 @@ void QNetworkManagerEngine::removeAccessPoint(const QString &path)
     QMutexLocker locker(&mutex);
     for (int i = 0; i < accessPoints.count(); ++i) {
         QNetworkManagerInterfaceAccessPoint *accessPoint = accessPoints.at(i);
-
         if (accessPoint->connectionInterface()->path() == path) {
             accessPoints.removeOne(accessPoint);
 
             if (configuredAccessPoints.contains(accessPoint->connectionInterface()->path())) {
                 // find connection and change state to Defined
                 configuredAccessPoints.remove(accessPoint->connectionInterface()->path());
+
                 for (int i = 0; i < connections.count(); ++i) {
                     QNetworkManagerSettingsConnection *connection = connections.at(i);
 
@@ -705,8 +681,6 @@ void QNetworkManagerEngine::removeAccessPoint(const QString &path)
                     accessPointConfigurations.take(path);
 
                 if (ptr) {
-                    locker.unlock();
-
                     locker.unlock();
                     emit configurationRemoved(ptr);
                     locker.relock();
@@ -718,42 +692,9 @@ void QNetworkManagerEngine::removeAccessPoint(const QString &path)
     }
 }
 
-void QNetworkManagerEngine::updateAccessPoint(const QMap<QString, QVariant> &map)
-{
-    QMutexLocker locker(&mutex);
-
-    Q_UNUSED(map)
-
-    QNetworkManagerInterfaceAccessPoint *accessPoint =
-        qobject_cast<QNetworkManagerInterfaceAccessPoint *>(sender());
-    if (!accessPoint)
-        return;
-    accessPoint->deleteLater();
-    for (int i = 0; i < connections.count(); ++i) {
-        QNetworkManagerSettingsConnection *connection = connections.at(i);
-
-        if (accessPoint->ssid() == connection->getSsid()) {
-            const QString settingsPath = connection->connectionInterface()->path();
-            const QString connectionId = settingsPath;
-
-            QNetworkConfigurationPrivatePointer ptr =
-                accessPointConfigurations.value(connectionId);
-            ptr->mutex.lock();
-            QNetworkConfiguration::StateFlags flag = QNetworkConfiguration::Defined;
-            ptr->state = (flag | QNetworkConfiguration::Discovered);
-            ptr->mutex.unlock();
-
-            locker.unlock();
-            emit configurationChanged(ptr);
-            return;
-        }
-    }
-}
-
 QNetworkConfigurationPrivate *QNetworkManagerEngine::parseConnection(const QString &settingsPath,
                                                                      const QNmSettingsMap &map)
 {
-   // Q_UNUSED(service);
     QMutexLocker locker(&mutex);
     QNetworkConfigurationPrivate *cpPriv = new QNetworkConfigurationPrivate;
     cpPriv->name = map.value("connection").value("id").toString();
@@ -765,17 +706,15 @@ QNetworkConfigurationPrivate *QNetworkManagerEngine::parseConnection(const QStri
     cpPriv->purpose = QNetworkConfiguration::PublicPurpose;
 
     cpPriv->state = QNetworkConfiguration::Defined;
-
     const QString connectionType = map.value("connection").value("type").toString();
 
     if (connectionType == QLatin1String("802-3-ethernet")) {
         cpPriv->bearerType = QNetworkConfiguration::BearerEthernet;
-        cpPriv->purpose = QNetworkConfiguration::PublicPurpose;
 
         foreach (const QDBusObjectPath &devicePath, managerInterface->getDevices()) {
-            QNetworkManagerInterfaceDevice device(devicePath.path());
+            QNetworkManagerInterfaceDevice device(devicePath.path(),this);
             if (device.deviceType() == DEVICE_TYPE_ETHERNET) {
-                QNetworkManagerInterfaceDeviceWired wiredDevice(device.connectionInterface()->path());
+                QNetworkManagerInterfaceDeviceWired wiredDevice(device.connectionInterface()->path(),this);
                 if (wiredDevice.carrier()) {
                     cpPriv->state |= QNetworkConfiguration::Discovered;
                     break;
@@ -786,12 +725,6 @@ QNetworkConfigurationPrivate *QNetworkManagerEngine::parseConnection(const QStri
         cpPriv->bearerType = QNetworkConfiguration::BearerWLAN;
 
         const QString connectionSsid = map.value("802-11-wireless").value("ssid").toString();
-        const QString connectionSecurity = map.value("802-11-wireless").value("security").toString();
-        if (!connectionSecurity.isEmpty()) {
-            cpPriv->purpose = QNetworkConfiguration::PrivatePurpose;
-        } else {
-            cpPriv->purpose = QNetworkConfiguration::PublicPurpose;
-        }
         for (int i = 0; i < accessPoints.count(); ++i) {
             if (connectionSsid == accessPoints.at(i)->ssid()
                     && map.value("802-11-wireless").value("seen-bssids").toStringList().contains(accessPoints.at(i)->hwAddress())) {
@@ -813,31 +746,11 @@ QNetworkConfigurationPrivate *QNetworkManagerEngine::parseConnection(const QStri
             }
         }
     } else if (connectionType == QLatin1String("gsm")) {
-
-        foreach (const QDBusObjectPath &devicePath, managerInterface->getDevices()) {
-            QNetworkManagerInterfaceDevice device(devicePath.path());
-
-            if (device.deviceType() == DEVICE_TYPE_MODEM) {
-                QNetworkManagerInterfaceDeviceModem deviceModem(device.connectionInterface()->path(),this);
-                switch (deviceModem.currentCapabilities()) {
-                case 2:
-                    cpPriv->bearerType = QNetworkConfiguration::Bearer2G;
-                    break;
-                case 4:
-                    cpPriv->bearerType = QNetworkConfiguration::Bearer3G;
-                    break;
-                case 8:
-                    cpPriv->bearerType = QNetworkConfiguration::Bearer4G;
-                    break;
-                default:
-                    cpPriv->bearerType = QNetworkConfiguration::BearerUnknown;
-                    break;
-                };
-            }
+        cpPriv->bearerType = currentBearerType();
+        if (map.value("connection").contains("timestamp")) {
+            cpPriv->state |= QNetworkConfiguration::Discovered;
         }
-
-        cpPriv->purpose = QNetworkConfiguration::PrivatePurpose;
-        cpPriv->state |= QNetworkConfiguration::Discovered;
+        cpPriv->name = contextName(map.value("connection").value("id").toString());
     }
 
     return cpPriv;
@@ -857,7 +770,6 @@ QNetworkManagerSettingsConnection *QNetworkManagerEngine::connectionFromId(const
 QNetworkSession::State QNetworkManagerEngine::sessionStateForId(const QString &id)
 {
     QMutexLocker locker(&mutex);
-
     QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(id);
 
     if (!ptr)
@@ -866,8 +778,8 @@ QNetworkSession::State QNetworkManagerEngine::sessionStateForId(const QString &i
     if (!ptr->isValid)
         return QNetworkSession::Invalid;
 
-    foreach (const QString &acPath, activeConnections.keys()) {
-        QNetworkManagerConnectionActive *activeConnection = activeConnections.value(acPath);
+    foreach (const QString &acPath, activeConnectionsList.keys()) {
+        QNetworkManagerConnectionActive *activeConnection = activeConnectionsList.value(acPath);
 
         const QString identifier = activeConnection->connection().path();
 
@@ -899,7 +811,7 @@ quint64 QNetworkManagerEngine::bytesWritten(const QString &id)
 
     QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(id);
     if (ptr && (ptr->state & QNetworkConfiguration::Active) == QNetworkConfiguration::Active) {
-        const QString networkInterface = getInterfaceFromId(id);
+        const QString networkInterface = connectionInterfaces.value(id);
         if (!networkInterface.isEmpty()) {
             const QString devFile = QLatin1String("/sys/class/net/") +
                                     networkInterface +
@@ -927,7 +839,7 @@ quint64 QNetworkManagerEngine::bytesReceived(const QString &id)
 
     QNetworkConfigurationPrivatePointer ptr = accessPointConfigurations.value(id);
     if (ptr && (ptr->state & QNetworkConfiguration::Active) == QNetworkConfiguration::Active) {
-        const QString networkInterface = getInterfaceFromId(id);
+        const QString networkInterface = connectionInterfaces.value(id);
         if (!networkInterface.isEmpty()) {
             const QString devFile = QLatin1String("/sys/class/net/") +
                                     networkInterface +
@@ -977,6 +889,54 @@ QNetworkConfigurationPrivatePointer QNetworkManagerEngine::defaultConfiguration(
     return QNetworkConfigurationPrivatePointer();
 }
 
+void QNetworkManagerEngine::changedModem()
+{
+    if (ofonoNetwork)
+        delete ofonoNetwork;
+
+    ofonoNetwork = new QOfonoNetworkRegistrationInterface(ofonoManager->currentModem(),this);
+
+    if (ofonoContextManager)
+        delete ofonoContextManager;
+    ofonoContextManager = new QOfonoDataConnectionManagerInterface(ofonoManager->currentModem(),this);
+}
+
+QNetworkConfiguration::BearerType QNetworkManagerEngine::currentBearerType()
+{
+    if (ofonoContextManager) {
+        QString bearer = ofonoContextManager->bearer();
+        if (bearer == QLatin1String("gsm")) {
+            return QNetworkConfiguration::Bearer2G;
+        } else if (bearer == QLatin1String("edge")) {
+            return QNetworkConfiguration::Bearer2G;
+        } else if (bearer == QLatin1String("umts")) {
+            return QNetworkConfiguration::BearerWCDMA;
+        } else if (bearer == QLatin1String("hspa")
+                   || bearer == QLatin1String("hsdpa")
+                   || bearer == QLatin1String("hsupa")) {
+            return QNetworkConfiguration::BearerHSPA;
+        } else if (bearer == QLatin1String("lte")) {
+            return QNetworkConfiguration::BearerLTE;
+        }
+    }
+    return QNetworkConfiguration::BearerUnknown;
+}
+
+QString QNetworkManagerEngine::contextName(const QString &path)
+{
+    if (ofonoContextManager) {
+        QString contextPart = path.section('/', -1);
+
+        Q_FOREACH (const QString &oContext, ofonoContextManager->contexts()) {
+            if (oContext.contains(contextPart)) {
+                QOfonoConnectionContextInterface contextInterface(oContext,this);
+                return contextInterface.name();
+            }
+        }
+    }
+    return path;
+}
+
 QT_END_NAMESPACE
 
 #endif // QT_NO_DBUS
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h
index ab1cfea71ef..d2ef9886a3d 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerengine.h
@@ -49,6 +49,8 @@
 
 #include "qnetworkmanagerservice.h"
 
+#include "../linux_common/qofonoservice_linux_p.h"
+
 #include <QMap>
 #include <QVariant>
 
@@ -89,11 +91,8 @@ public:
     QNetworkConfigurationPrivatePointer defaultConfiguration();
 
 private Q_SLOTS:
-    void interfacePropertiesChanged(const QString &path,
-                                    const QMap<QString, QVariant> &properties);
-    void activeConnectionPropertiesChanged(const QString &path,
-                                           const QMap<QString, QVariant> &properties);
-    void devicePropertiesChanged(const QString &path, quint32);
+    void interfacePropertiesChanged(const QMap<QString, QVariant> &properties);
+    void activeConnectionPropertiesChanged(const QMap<QString, QVariant> &properties);
 
     void deviceAdded(const QDBusObjectPath &path);
     void deviceRemoved(const QDBusObjectPath &path);
@@ -106,8 +105,8 @@ private Q_SLOTS:
 
     void newAccessPoint(const QString &path);
     void removeAccessPoint(const QString &path);
-    void updateAccessPoint(const QMap<QString, QVariant> &map);
     void scanFinished();
+    void changedModem();
 
 private:
     QNetworkConfigurationPrivate *parseConnection(const QString &settingsPath,
@@ -116,14 +115,21 @@ private:
 
     QNetworkManagerInterface *managerInterface;
     QNetworkManagerSettings *systemSettings;
-    QNetworkManagerSettings *userSettings;
     QHash<QString, QNetworkManagerInterfaceDeviceWireless *> wirelessDevices;
-    QHash<QString, QNetworkManagerConnectionActive *> activeConnections;
+    QHash<QString, QNetworkManagerConnectionActive *> activeConnectionsList;
     QList<QNetworkManagerSettingsConnection *> connections;
     QList<QNetworkManagerInterfaceAccessPoint *> accessPoints;
     QHash<QString, QNetworkManagerInterfaceDevice *> interfaceDevices;
 
     QMap<QString,QString> configuredAccessPoints; //ap, settings path
+    QHash<QString,QString> connectionInterfaces; // ac, interface
+
+    QOfonoManagerInterface *ofonoManager;
+    QOfonoNetworkRegistrationInterface *ofonoNetwork;
+    QOfonoDataConnectionManagerInterface *ofonoContextManager;
+    QNetworkConfiguration::BearerType currentBearerType();
+    QString contextName(const QString &path);
+
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp
index f249ac6100c..2d54fa30297 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.cpp
@@ -44,7 +44,6 @@
 #include <QtDBus/QDBusPendingCall>
 
 #include "qnetworkmanagerservice.h"
-#include "qnmdbushelper.h"
 
 #ifndef QT_NO_DBUS
 
@@ -64,18 +63,38 @@ QNetworkManagerInterface::QNetworkManagerInterface(QObject *parent)
     d->connectionInterface = new QDBusInterface(QLatin1String(NM_DBUS_SERVICE),
                                                 QLatin1String(NM_DBUS_PATH),
                                                 QLatin1String(NM_DBUS_INTERFACE),
-                                                QDBusConnection::systemBus());
+                                                QDBusConnection::systemBus(),parent);
     if (!d->connectionInterface->isValid()) {
         d->valid = false;
         return;
     }
     d->valid = true;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForPropertiesChanged(QString,QMap<QString,QVariant>)),
-                    this,SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)));
-    connect(nmDBusHelper,SIGNAL(pathForStateChanged(QString,quint32)),
-            this, SIGNAL(stateChanged(QString,quint32)));
 
+    QDBusInterface managerPropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  QLatin1String(NM_DBUS_PATH),
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus());
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE);
+    QDBusPendingReply<QVariantMap> propsReply
+            = managerPropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    }
+
+    QDBusPendingReply<QList <QDBusObjectPath> > nmReply
+            = d->connectionInterface->call(QLatin1String("GetDevices"));
+    nmReply.waitForFinished();
+    if (!nmReply.isError()) {
+        devicesPathList = nmReply.value();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  QLatin1String(NM_DBUS_PATH),
+                                  QLatin1String(NM_DBUS_INTERFACE),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
 }
 
 QNetworkManagerInterface::~QNetworkManagerInterface()
@@ -91,27 +110,24 @@ bool QNetworkManagerInterface::isValid()
 
 bool QNetworkManagerInterface::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
 
-    QDBusConnection dbusConnection = QDBusConnection::systemBus();
-
-    bool allOk = false;
-    if (dbusConnection.connect(QLatin1String(NM_DBUS_SERVICE),
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
                                   QLatin1String(NM_DBUS_PATH),
                                   QLatin1String(NM_DBUS_INTERFACE),
                                   QLatin1String("PropertiesChanged"),
-                                nmDBusHelper,SLOT(slotPropertiesChanged(QMap<QString,QVariant>)))) {
-        allOk = true;
-    }
-    if (dbusConnection.connect(QLatin1String(NM_DBUS_SERVICE),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
+
+    bool allOk = false;
+    if (QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
                                   QLatin1String(NM_DBUS_PATH),
                                   QLatin1String(NM_DBUS_INTERFACE),
                                   QLatin1String("DeviceAdded"),
                                 this,SIGNAL(deviceAdded(QDBusObjectPath)))) {
         allOk = true;
     }
-    if (dbusConnection.connect(QLatin1String(NM_DBUS_SERVICE),
+    if (QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
                                   QLatin1String(NM_DBUS_PATH),
                                   QLatin1String(NM_DBUS_INTERFACE),
                                   QLatin1String("DeviceRemoved"),
@@ -127,14 +143,17 @@ QDBusInterface *QNetworkManagerInterface::connectionInterface()  const
     return d->connectionInterface;
 }
 
-QList <QDBusObjectPath> QNetworkManagerInterface::getDevices() const
+QList <QDBusObjectPath> QNetworkManagerInterface::getDevices()
 {
-    QDBusReply<QList<QDBusObjectPath> > reply =  d->connectionInterface->call(QLatin1String("GetDevices"));
-    return reply.value();
+    if (devicesPathList.isEmpty()) {
+        qWarning() << "using blocking call!";
+        QDBusReply<QList<QDBusObjectPath> > reply = d->connectionInterface->call(QLatin1String("GetDevices"));
+        devicesPathList = reply.value();
+    }
+    return devicesPathList;
 }
 
-void QNetworkManagerInterface::activateConnection( const QString &,
-                                                  QDBusObjectPath connectionPath,
+void QNetworkManagerInterface::activateConnection(QDBusObjectPath connectionPath,
                                                   QDBusObjectPath devicePath,
                                                   QDBusObjectPath specificObject)
 {
@@ -150,28 +169,80 @@ void QNetworkManagerInterface::activateConnection( const QString &,
 
 void QNetworkManagerInterface::deactivateConnection(QDBusObjectPath connectionPath)  const
 {
-    d->connectionInterface->call(QLatin1String("DeactivateConnection"), QVariant::fromValue(connectionPath));
+    d->connectionInterface->asyncCall(QLatin1String("DeactivateConnection"), QVariant::fromValue(connectionPath));
 }
 
 bool QNetworkManagerInterface::wirelessEnabled()  const
 {
-    return d->connectionInterface->property("WirelessEnabled").toBool();
+    if (propertyMap.contains("WirelessEnabled"))
+        return propertyMap.value("WirelessEnabled").toBool();
+    return false;
 }
 
 bool QNetworkManagerInterface::wirelessHardwareEnabled()  const
 {
-    return d->connectionInterface->property("WirelessHardwareEnabled").toBool();
+    if (propertyMap.contains("WirelessHardwareEnabled"))
+        return propertyMap.value("WirelessHardwareEnabled").toBool();
+    return false;
 }
 
 QList <QDBusObjectPath> QNetworkManagerInterface::activeConnections() const
 {
-    QVariant prop = d->connectionInterface->property("ActiveConnections");
-    return prop.value<QList<QDBusObjectPath> >();
+    if (propertyMap.contains("ActiveConnections")) {
+
+        const QDBusArgument &dbusArgs = propertyMap.value("ActiveConnections").value<QDBusArgument>();
+        QDBusObjectPath path;
+        QList <QDBusObjectPath> list;
+
+        dbusArgs.beginArray();
+        while (!dbusArgs.atEnd()) {
+            dbusArgs >> path;
+            list.append(path);
+        }
+        dbusArgs.endArray();
+
+        return list;
+    }
+
+    QList <QDBusObjectPath> list;
+    list << QDBusObjectPath();
+    return list;
+}
+
+QNetworkManagerInterface::NMState QNetworkManagerInterface::state()
+{
+    if (propertyMap.contains("State"))
+        return static_cast<QNetworkManagerInterface::NMState>(propertyMap.value("State").toUInt());
+    return QNetworkManagerInterface::NM_STATE_UNKNOWN;
 }
 
-quint32 QNetworkManagerInterface::state()
+QString QNetworkManagerInterface::version() const
 {
-    return d->connectionInterface->property("State").toUInt();
+    if (propertyMap.contains("Version"))
+        return propertyMap.value("Version").toString();
+    return QString();
+}
+
+void QNetworkManagerInterface::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        propertyMap.insert(i.key(),i.value());
+
+        if (i.key() == QStringLiteral("State")) {
+            quint32 state = i.value().toUInt();
+            if (state == NM_DEVICE_STATE_ACTIVATED
+                || state == NM_DEVICE_STATE_DISCONNECTED
+                || state == NM_DEVICE_STATE_UNAVAILABLE
+                || state == NM_DEVICE_STATE_FAILED) {
+                Q_EMIT propertiesChanged(map);
+                Q_EMIT stateChanged(state);
+            }
+        } else if (i.key() == QStringLiteral("ActiveConnections")) {
+            Q_EMIT propertiesChanged(map);
+        }
+    }
 }
 
 class QNetworkManagerInterfaceAccessPointPrivate
@@ -183,18 +254,38 @@ public:
 };
 
 QNetworkManagerInterfaceAccessPoint::QNetworkManagerInterfaceAccessPoint(const QString &dbusPathName, QObject *parent)
-        : QObject(parent), nmDBusHelper(0)
+        : QObject(parent)
 {
     d = new QNetworkManagerInterfaceAccessPointPrivate();
     d->path = dbusPathName;
     d->connectionInterface = new QDBusInterface(QLatin1String(NM_DBUS_SERVICE),
                                                 d->path,
                                                 QLatin1String(NM_DBUS_INTERFACE_ACCESS_POINT),
-                                                QDBusConnection::systemBus());
+                                                QDBusConnection::systemBus(),parent);
     if (!d->connectionInterface->isValid()) {
         d->valid = false;
         return;
     }
+    QDBusInterface accessPointPropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  d->path,
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus());
+
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE_ACCESS_POINT);
+    QDBusPendingReply<QVariantMap> propsReply
+            = accessPointPropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  d->path,
+                                  QLatin1String(NM_DBUS_INTERFACE_ACCESS_POINT),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
+
     d->valid = true;
 
 }
@@ -212,24 +303,10 @@ bool QNetworkManagerInterfaceAccessPoint::isValid()
 
 bool QNetworkManagerInterfaceAccessPoint::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
 
-    bool allOk = false;
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForPropertiesChanged(QString,QMap<QString,QVariant>)),
-            this,SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)));
-
-    if (QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
-                              QLatin1String(NM_DBUS_INTERFACE_ACCESS_POINT),
-                              QLatin1String("PropertiesChanged"),
-                              nmDBusHelper,SLOT(slotPropertiesChanged(QMap<QString,QVariant>))) ) {
-        allOk = true;
-
-    }
-    return allOk;
+    return true;
 }
 
 QDBusInterface *QNetworkManagerInterfaceAccessPoint::connectionInterface() const
@@ -239,47 +316,74 @@ QDBusInterface *QNetworkManagerInterfaceAccessPoint::connectionInterface() const
 
 quint32 QNetworkManagerInterfaceAccessPoint::flags() const
 {
-    return d->connectionInterface->property("Flags").toUInt();
+    if (propertyMap.contains("Flags"))
+        return propertyMap.value("Flags").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::wpaFlags() const
 {
-    return d->connectionInterface->property("WpaFlags").toUInt();
+    if (propertyMap.contains("WpaFlags"))
+        return propertyMap.value("WpaFlags").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::rsnFlags() const
 {
-    return d->connectionInterface->property("RsnFlags").toUInt();
+    if (propertyMap.contains("RsnFlags"))
+        return propertyMap.value("RsnFlags").toUInt();
+    return 0;
 }
 
 QString QNetworkManagerInterfaceAccessPoint::ssid() const
 {
-    return d->connectionInterface->property("Ssid").toString();
+    if (propertyMap.contains("Ssid"))
+        return propertyMap.value("Ssid").toString();
+    return QString();
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::frequency() const
 {
-    return d->connectionInterface->property("Frequency").toUInt();
+    if (propertyMap.contains("Frequency"))
+        return propertyMap.value("Frequency").toUInt();
+    return 0;
 }
 
 QString QNetworkManagerInterfaceAccessPoint::hwAddress() const
 {
-    return d->connectionInterface->property("HwAddress").toString();
+    if (propertyMap.contains("HwAddress"))
+        return propertyMap.value("HwAddress").toString();
+    return QString();
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::mode() const
 {
-    return d->connectionInterface->property("Mode").toUInt();
+    if (propertyMap.contains("Mode"))
+        return propertyMap.value("Mode").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::maxBitrate() const
 {
-    return d->connectionInterface->property("MaxBitrate").toUInt();
+    if (propertyMap.contains("MaxBitrate"))
+        return propertyMap.value("MaxBitrate").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceAccessPoint::strength() const
 {
-    return d->connectionInterface->property("Strength").toUInt();
+    if (propertyMap.contains("Strength"))
+        return propertyMap.value("Strength").toUInt();
+    return 0;
+}
+
+void QNetworkManagerInterfaceAccessPoint::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        propertyMap.insert(i.key(),i.value());
+    }
 }
 
 class QNetworkManagerInterfaceDevicePrivate
@@ -291,18 +395,39 @@ public:
 };
 
 QNetworkManagerInterfaceDevice::QNetworkManagerInterfaceDevice(const QString &deviceObjectPath, QObject *parent)
-        : QObject(parent), nmDBusHelper(0)
+        : QObject(parent)
 {
+
     d = new QNetworkManagerInterfaceDevicePrivate();
     d->path = deviceObjectPath;
     d->connectionInterface = new QDBusInterface(QLatin1String(NM_DBUS_SERVICE),
                                                 d->path,
                                                 QLatin1String(NM_DBUS_INTERFACE_DEVICE),
-                                                QDBusConnection::systemBus());
+                                                QDBusConnection::systemBus(),parent);
     if (!d->connectionInterface->isValid()) {
         d->valid = false;
         return;
     }
+    QDBusInterface devicePropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  d->path,
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus(),parent);
+
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE_DEVICE);
+    QDBusPendingReply<QVariantMap> propsReply
+            = devicePropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  d->path,
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
     d->valid = true;
 }
 
@@ -319,35 +444,10 @@ bool QNetworkManagerInterfaceDevice::isValid()
 
 bool QNetworkManagerInterfaceDevice::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
 
-    bool allOk = true;
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper,SIGNAL(pathForStateChanged(QString,quint32)),
-            this, SIGNAL(stateChanged(QString,quint32)));
-
-    if (QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
-                              QLatin1String(NM_DBUS_INTERFACE_DEVICE),
-                              QLatin1String("StateChanged"),
-                              nmDBusHelper,SLOT(deviceStateChanged(quint32)))) {
-        allOk = false;
-    }
-
-    connect(nmDBusHelper, SIGNAL(pathForConnectionsChanged(QStringList)),
-            this,SIGNAL(connectionsChanged(QStringList)));
-
-    if (QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
-                                             d->path,
-                                             QLatin1String(NM_DBUS_INTERFACE_ACCESS_POINT),
-                                             QLatin1String("PropertiesChanged"),
-                                             nmDBusHelper,SLOT(slotPropertiesChanged(QMap<QString,QVariant>))) ) {
-        allOk = false;
-    }
-
-    return allOk;
+    return true;
 }
 
 QDBusInterface *QNetworkManagerInterfaceDevice::connectionInterface() const
@@ -357,33 +457,66 @@ QDBusInterface *QNetworkManagerInterfaceDevice::connectionInterface() const
 
 QString QNetworkManagerInterfaceDevice::udi() const
 {
-    return d->connectionInterface->property("Udi").toString();
+    if (propertyMap.contains("Udi"))
+        return propertyMap.value("Udi").toString();
+    return QString();
 }
 
 QString QNetworkManagerInterfaceDevice::networkInterface() const
 {
-    return d->connectionInterface->property("Interface").toString();
+    if (propertyMap.contains("Interface"))
+        return propertyMap.value("Interface").toString();
+    return QString();
 }
 
 quint32 QNetworkManagerInterfaceDevice::ip4Address() const
 {
-    return d->connectionInterface->property("Ip4Address").toUInt();
+    if (propertyMap.contains("Ip4Address"))
+        return propertyMap.value("Ip4Address").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceDevice::state() const
 {
-    return d->connectionInterface->property("State").toUInt();
+    if (propertyMap.contains("State"))
+        return propertyMap.value("State").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceDevice::deviceType() const
 {
-    return d->connectionInterface->property("DeviceType").toUInt();
+    if (propertyMap.contains("DeviceType"))
+        return propertyMap.value("DeviceType").toUInt();
+    return 0;
 }
 
 QDBusObjectPath QNetworkManagerInterfaceDevice::ip4config() const
 {
-    QVariant prop = d->connectionInterface->property("Ip4Config");
-    return prop.value<QDBusObjectPath>();
+    if (propertyMap.contains("Ip4Config"))
+        return propertyMap.value("Ip4Config").value<QDBusObjectPath>();
+    return QDBusObjectPath();
+}
+
+void QNetworkManagerInterfaceDevice::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        if (i.key() == QStringLiteral("AvailableConnections")) { //Device
+            const QDBusArgument &dbusArgs = i.value().value<QDBusArgument>();
+            QDBusObjectPath path;
+            QStringList paths;
+            dbusArgs.beginArray();
+            while (!dbusArgs.atEnd()) {
+                dbusArgs >> path;
+                paths << path.path();
+            }
+            dbusArgs.endArray();
+            Q_EMIT connectionsChanged(paths);
+        }
+        propertyMap.insert(i.key(),i.value());
+    }
+    Q_EMIT propertiesChanged(map);
 }
 
 class QNetworkManagerInterfaceDeviceWiredPrivate
@@ -395,7 +528,7 @@ public:
 };
 
 QNetworkManagerInterfaceDeviceWired::QNetworkManagerInterfaceDeviceWired(const QString &ifaceDevicePath, QObject *parent)
-    : QObject(parent), nmDBusHelper(0)
+    : QObject(parent)
 {
     d = new QNetworkManagerInterfaceDeviceWiredPrivate();
     d->path = ifaceDevicePath;
@@ -407,6 +540,27 @@ QNetworkManagerInterfaceDeviceWired::QNetworkManagerInterfaceDeviceWired(const Q
         d->valid = false;
         return;
     }
+    QDBusInterface deviceWiredPropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  d->path,
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus(),parent);
+
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRED);
+    QDBusPendingReply<QVariantMap> propsReply
+            = deviceWiredPropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  d->path,
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRED),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
+
     d->valid = true;
 }
 
@@ -424,23 +578,9 @@ bool QNetworkManagerInterfaceDeviceWired::isValid()
 
 bool QNetworkManagerInterfaceDeviceWired::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
-
-    bool allOk = true;
-
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForPropertiesChanged(QString,QMap<QString,QVariant>)),
-            this,SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)));
-    if (!QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
-                              QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRED),
-                              QLatin1String("PropertiesChanged"),
-                              nmDBusHelper,SLOT(slotPropertiesChanged(QMap<QString,QVariant>))) )  {
-        allOk = false;
-    }
-    return allOk;
+    return true;
 }
 
 QDBusInterface *QNetworkManagerInterfaceDeviceWired::connectionInterface() const
@@ -450,17 +590,33 @@ QDBusInterface *QNetworkManagerInterfaceDeviceWired::connectionInterface() const
 
 QString QNetworkManagerInterfaceDeviceWired::hwAddress() const
 {
-    return d->connectionInterface->property("HwAddress").toString();
+    if (propertyMap.contains("HwAddress"))
+        return propertyMap.value("HwAddress").toString();
+    return QString();
 }
 
 quint32 QNetworkManagerInterfaceDeviceWired::speed() const
 {
-    return d->connectionInterface->property("Speed").toUInt();
+    if (propertyMap.contains("Speed"))
+        return propertyMap.value("Speed").toUInt();
+    return 0;
 }
 
 bool QNetworkManagerInterfaceDeviceWired::carrier() const
 {
-    return d->connectionInterface->property("Carrier").toBool();
+    if (propertyMap.contains("Carrier"))
+        return propertyMap.value("Carrier").toBool();
+    return false;
+}
+
+void QNetworkManagerInterfaceDeviceWired::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        propertyMap.insert(i.key(),i.value());
+    }
+    Q_EMIT propertiesChanged(map);
 }
 
 class QNetworkManagerInterfaceDeviceWirelessPrivate
@@ -472,7 +628,7 @@ public:
 };
 
 QNetworkManagerInterfaceDeviceWireless::QNetworkManagerInterfaceDeviceWireless(const QString &ifaceDevicePath, QObject *parent)
-    : QObject(parent), nmDBusHelper(0)
+    : QObject(parent)
 {
     d = new QNetworkManagerInterfaceDeviceWirelessPrivate();
     d->path = ifaceDevicePath;
@@ -484,6 +640,34 @@ QNetworkManagerInterfaceDeviceWireless::QNetworkManagerInterfaceDeviceWireless(c
         d->valid = false;
         return;
     }
+
+
+    QDBusPendingReply<QList <QDBusObjectPath> > nmReply
+            = d->connectionInterface->call(QLatin1String("GetAccessPoints"));
+
+    if (!nmReply.isError()) {
+        accessPointsList = nmReply.value();
+    }
+
+    QDBusInterface deviceWirelessPropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  d->path,
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus(),parent);
+
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS);
+    QDBusPendingReply<QVariantMap> propsReply
+            = deviceWirelessPropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  d->path,
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
     d->valid = true;
 }
 
@@ -498,29 +682,31 @@ bool QNetworkManagerInterfaceDeviceWireless::isValid()
     return d->valid;
 }
 
+void QNetworkManagerInterfaceDeviceWireless::slotAccessPointAdded(QDBusObjectPath path)
+{
+    if (path.path().length() > 2)
+        Q_EMIT accessPointAdded(path.path());
+}
+
+void QNetworkManagerInterfaceDeviceWireless::slotAccessPointRemoved(QDBusObjectPath path)
+{
+    if (path.path().length() > 2)
+        Q_EMIT accessPointRemoved(path.path());
+}
+
 bool QNetworkManagerInterfaceDeviceWireless::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
 
     QDBusConnection dbusConnection = QDBusConnection::systemBus();
     bool allOk = true;
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForPropertiesChanged(QString,QMap<QString,QVariant>)),
-            this,SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)));
-
-    connect(nmDBusHelper, SIGNAL(pathForAccessPointAdded(QString)),
-            this,SIGNAL(accessPointAdded(QString)));
-
-    connect(nmDBusHelper, SIGNAL(pathForAccessPointRemoved(QString)),
-            this,SIGNAL(accessPointRemoved(QString)));
 
     if (!dbusConnection.connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
+                                d->path,
                               QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
                               QLatin1String("AccessPointAdded"),
-                              nmDBusHelper, SLOT(slotAccessPointAdded(QDBusObjectPath)))) {
+                              this, SLOT(slotAccessPointAdded(QDBusObjectPath)))) {
         allOk = false;
     }
 
@@ -529,18 +715,10 @@ bool QNetworkManagerInterfaceDeviceWireless::setConnections()
                               d->path,
                               QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
                               QLatin1String("AccessPointRemoved"),
-                              nmDBusHelper, SLOT(slotAccessPointRemoved(QDBusObjectPath)))) {
+                              this, SLOT(slotAccessPointRemoved(QDBusObjectPath)))) {
         allOk = false;
     }
 
-
-    if (!dbusConnection.connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
-                              QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
-                              QLatin1String("PropertiesChanged"),
-                              nmDBusHelper,SLOT(slotPropertiesChanged(QMap<QString,QVariant>)))) {
-        allOk = false;
-    }
     if (!dbusConnection.connect(QLatin1String(NM_DBUS_SERVICE),
                                d->path,
                                QLatin1String(NM_DBUS_INTERFACE_DEVICE_WIRELESS),
@@ -558,33 +736,48 @@ QDBusInterface *QNetworkManagerInterfaceDeviceWireless::connectionInterface() co
 
 QList <QDBusObjectPath> QNetworkManagerInterfaceDeviceWireless::getAccessPoints()
 {
-    QDBusReply<QList<QDBusObjectPath> > reply = d->connectionInterface->call(QLatin1String("GetAccessPoints"));
-    return reply.value();
+    if (accessPointsList.isEmpty()) {
+        qWarning() << "Using blocking call!";
+        QDBusReply<QList<QDBusObjectPath> > reply
+                = d->connectionInterface->call(QLatin1String("GetAccessPoints"));
+        accessPointsList = reply.value();
+    }
+    return accessPointsList;
 }
 
 QString QNetworkManagerInterfaceDeviceWireless::hwAddress() const
 {
-    return d->connectionInterface->property("HwAddress").toString();
+    if (propertyMap.contains("HwAddress"))
+        return propertyMap.value("HwAddress").toString();
+    return QString();
 }
 
 quint32 QNetworkManagerInterfaceDeviceWireless::mode() const
 {
-    return d->connectionInterface->property("Mode").toUInt();
+    if (propertyMap.contains("Mode"))
+        return propertyMap.value("Mode").toUInt();
+    return 0;
 }
 
 quint32 QNetworkManagerInterfaceDeviceWireless::bitrate() const
 {
-    return d->connectionInterface->property("Bitrate").toUInt();
+    if (propertyMap.contains("Bitrate"))
+        return propertyMap.value("Bitrate").toUInt();
+    return 0;
 }
 
 QDBusObjectPath QNetworkManagerInterfaceDeviceWireless::activeAccessPoint() const
 {
-    return d->connectionInterface->property("ActiveAccessPoint").value<QDBusObjectPath>();
+    if (propertyMap.contains("ActiveAccessPoint"))
+        return propertyMap.value("ActiveAccessPoint").value<QDBusObjectPath>();
+    return QDBusObjectPath();
 }
 
 quint32 QNetworkManagerInterfaceDeviceWireless::wirelessCapabilities() const
 {
-    return d->connectionInterface->property("WirelelessCapabilities").toUInt();
+    if (propertyMap.contains("WirelelessCapabilities"))
+        return propertyMap.value("WirelelessCapabilities").toUInt();
+    return 0;
 }
 
 void QNetworkManagerInterfaceDeviceWireless::scanIsDone()
@@ -597,6 +790,17 @@ void QNetworkManagerInterfaceDeviceWireless::requestScan()
     d->connectionInterface->asyncCall(QLatin1String("RequestScan"));
 }
 
+void QNetworkManagerInterfaceDeviceWireless::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        propertyMap.insert(i.key(),i.value());
+        if (i.key() == QStringLiteral("ActiveAccessPoint")) { //DeviceWireless
+            Q_EMIT propertiesChanged(map);
+        }
+    }
+}
 
 class QNetworkManagerInterfaceDeviceModemPrivate
 {
@@ -607,7 +811,7 @@ public:
 };
 
 QNetworkManagerInterfaceDeviceModem::QNetworkManagerInterfaceDeviceModem(const QString &ifaceDevicePath, QObject *parent)
-    : QObject(parent), nmDBusHelper(0)
+    : QObject(parent)
 {
     d = new QNetworkManagerInterfaceDeviceModemPrivate();
     d->path = ifaceDevicePath;
@@ -619,6 +823,25 @@ QNetworkManagerInterfaceDeviceModem::QNetworkManagerInterfaceDeviceModem(const Q
         d->valid = false;
         return;
     }
+    QDBusInterface deviceModemPropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  d->path,
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus(),parent);
+
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE_DEVICE_MODEM);
+    QDBusPendingReply<QVariantMap> propsReply
+            = deviceModemPropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  d->path,
+                                  QLatin1String(NM_DBUS_INTERFACE_DEVICE_MODEM),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
     d->valid = true;
 }
 
@@ -639,20 +862,7 @@ bool QNetworkManagerInterfaceDeviceModem::setConnections()
     if (!isValid() )
         return false;
 
-    bool allOk = true;
-
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForPropertiesChanged(QString,QMap<QString,QVariant>)),
-            this,SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)));
-    if (!QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
-                              QLatin1String(NM_DBUS_INTERFACE_DEVICE_MODEM),
-                              QLatin1String("PropertiesChanged"),
-                              nmDBusHelper,SLOT(slotDevicePropertiesChanged(QMap<QString,QVariant>))) )  {
-        allOk = false;
-    }
-    return allOk;
+    return true;
 }
 
 QDBusInterface *QNetworkManagerInterfaceDeviceModem::connectionInterface() const
@@ -660,14 +870,28 @@ QDBusInterface *QNetworkManagerInterfaceDeviceModem::connectionInterface() const
     return d->connectionInterface;
 }
 
-quint32 QNetworkManagerInterfaceDeviceModem::modemCapabilities() const
+QNetworkManagerInterfaceDeviceModem::ModemCapabilities QNetworkManagerInterfaceDeviceModem::modemCapabilities() const
 {
-    return d->connectionInterface->property("ModemCapabilities").toUInt();
+    if (propertyMap.contains("ModemCapabilities"))
+        return static_cast<QNetworkManagerInterfaceDeviceModem::ModemCapabilities>(propertyMap.value("ModemCapabilities").toUInt());
+    return QNetworkManagerInterfaceDeviceModem::None;
 }
 
-quint32 QNetworkManagerInterfaceDeviceModem::currentCapabilities() const
+QNetworkManagerInterfaceDeviceModem::ModemCapabilities QNetworkManagerInterfaceDeviceModem::currentCapabilities() const
 {
-    return d->connectionInterface->property("CurrentCapabilities").toUInt();
+    if (propertyMap.contains("CurrentCapabilities"))
+        return static_cast<QNetworkManagerInterfaceDeviceModem::ModemCapabilities>(propertyMap.value("CurrentCapabilities").toUInt());
+    return QNetworkManagerInterfaceDeviceModem::None;
+}
+
+void QNetworkManagerInterfaceDeviceModem::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        propertyMap.insert(i.key(),i.value());
+    }
+    Q_EMIT propertiesChanged(map);
 }
 
 class QNetworkManagerSettingsPrivate
@@ -691,6 +915,14 @@ QNetworkManagerSettings::QNetworkManagerSettings(const QString &settingsService,
         d->valid = false;
         return;
     }
+
+    QDBusPendingReply<QList <QDBusObjectPath> > nmReply
+            = d->connectionInterface->call(QLatin1String("ListConnections"));
+
+    if (!nmReply.isError()) {
+        connectionsList = nmReply.value();
+    }
+
     d->valid = true;
 }
 
@@ -722,10 +954,16 @@ bool QNetworkManagerSettings::setConnections()
 
 QList <QDBusObjectPath> QNetworkManagerSettings::listConnections()
 {
-    QDBusReply<QList<QDBusObjectPath> > reply = d->connectionInterface->call(QLatin1String("ListConnections"));
-    return  reply.value();
+    if (connectionsList.isEmpty()) {
+        qWarning() << "Using blocking call!";
+        QDBusReply<QList<QDBusObjectPath> > reply
+                = d->connectionInterface->call(QLatin1String("ListConnections"));
+        connectionsList = reply.value();
+    }
+    return connectionsList;
 }
 
+
 QString QNetworkManagerSettings::getConnectionByUuid(const QString &uuid)
 {
     QList<QVariant> argumentList;
@@ -751,7 +989,7 @@ public:
 };
 
 QNetworkManagerSettingsConnection::QNetworkManagerSettingsConnection(const QString &settingsService, const QString &connectionObjectPath, QObject *parent)
-    : QObject(parent), nmDBusHelper(0)
+    : QObject(parent)
 {
     qDBusRegisterMetaType<QNmSettingsMap>();
     d = new QNetworkManagerSettingsConnectionPrivate();
@@ -766,8 +1004,12 @@ QNetworkManagerSettingsConnection::QNetworkManagerSettingsConnection(const QStri
         return;
     }
     d->valid = true;
-    QDBusReply< QNmSettingsMap > rep = d->connectionInterface->call(QLatin1String("GetSettings"));
-    d->settingsMap = rep.value();
+
+    QDBusPendingReply<QNmSettingsMap> nmReply
+            = d->connectionInterface->call(QLatin1String("GetSettings"));
+    if (!nmReply.isError()) {
+        d->settingsMap = nmReply.value();
+    }
 }
 
 QNetworkManagerSettingsConnection::~QNetworkManagerSettingsConnection()
@@ -783,7 +1025,7 @@ bool QNetworkManagerSettingsConnection::isValid()
 
 bool QNetworkManagerSettingsConnection::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
 
     QDBusConnection dbusConnection = QDBusConnection::systemBus();
@@ -796,21 +1038,21 @@ bool QNetworkManagerSettingsConnection::setConnections()
         allOk = false;
     }
 
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForSettingsRemoved(QString)),
-            this,SIGNAL(removed(QString)));
-
     if (!dbusConnection.connect(d->service,
                                d->path,
                                QLatin1String(NM_DBUS_IFACE_SETTINGS_CONNECTION),
                                QLatin1String("Removed"),
-                               nmDBusHelper, SIGNAL(slotSettingsRemoved()))) {
+                               this, SIGNAL(slotSettingsRemoved()))) {
         allOk = false;
     }
     return allOk;
 }
 
+void QNetworkManagerSettingsConnection::slotSettingsRemoved()
+{
+    Q_EMIT removed(d->path);
+}
+
 QDBusInterface *QNetworkManagerSettingsConnection::connectionInterface() const
 {
     return d->connectionInterface;
@@ -818,8 +1060,11 @@ QDBusInterface *QNetworkManagerSettingsConnection::connectionInterface() const
 
 QNmSettingsMap QNetworkManagerSettingsConnection::getSettings()
 {
-    QDBusReply< QNmSettingsMap > rep = d->connectionInterface->call(QLatin1String("GetSettings"));
-    d->settingsMap = rep.value();
+    if (d->settingsMap.isEmpty()) {
+        qWarning() << "Using blocking call!";
+        QDBusReply<QNmSettingsMap> reply = d->connectionInterface->call(QLatin1String("GetSettings"));
+        d->settingsMap = reply.value();
+    }
     return d->settingsMap;
 }
 
@@ -832,6 +1077,8 @@ NMDeviceType QNetworkManagerSettingsConnection::getType()
         return DEVICE_TYPE_ETHERNET;
     else if (devType == QLatin1String("802-11-wireless"))
         return DEVICE_TYPE_WIFI;
+    else if (devType == QLatin1String("gsm"))
+        return DEVICE_TYPE_MODEM;
     else
         return DEVICE_TYPE_UNKNOWN;
 }
@@ -908,7 +1155,7 @@ public:
 };
 
 QNetworkManagerConnectionActive::QNetworkManagerConnectionActive(const QString &activeConnectionObjectPath, QObject *parent)
-    : QObject(parent), nmDBusHelper(0)
+    : QObject(parent)
 {
     d = new QNetworkManagerConnectionActivePrivate();
     d->path = activeConnectionObjectPath;
@@ -920,6 +1167,29 @@ QNetworkManagerConnectionActive::QNetworkManagerConnectionActive(const QString &
         d->valid = false;
         return;
     }
+    QDBusInterface connectionActivePropertiesInterface(QLatin1String(NM_DBUS_SERVICE),
+                                                  d->path,
+                                                  QLatin1String("org.freedesktop.DBus.Properties"),
+                                                  QDBusConnection::systemBus());
+
+
+    QList<QVariant> argumentList;
+    argumentList << QLatin1String(NM_DBUS_INTERFACE_ACTIVE_CONNECTION);
+    QDBusPendingReply<QVariantMap> propsReply
+            = connectionActivePropertiesInterface.callWithArgumentList(QDBus::Block,QLatin1String("GetAll"),
+                                                                       argumentList);
+
+    if (!propsReply.isError()) {
+        propertyMap = propsReply.value();
+    } else {
+        qWarning() << propsReply.error().message();
+    }
+
+    QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
+                                  d->path,
+                                  QLatin1String(NM_DBUS_INTERFACE_ACTIVE_CONNECTION),
+                                  QLatin1String("PropertiesChanged"),
+                                  this,SLOT(propertiesSwap(QMap<QString,QVariant>)));
     d->valid = true;
 }
 
@@ -936,24 +1206,10 @@ bool QNetworkManagerConnectionActive::isValid()
 
 bool QNetworkManagerConnectionActive::setConnections()
 {
-    if(!isValid() )
+    if (!isValid())
         return false;
 
-    bool allOk = true;
-    delete nmDBusHelper;
-    nmDBusHelper = new QNmDBusHelper(this);
-    connect(nmDBusHelper, SIGNAL(pathForPropertiesChanged(QString,QMap<QString,QVariant>)),
-            this,SIGNAL(propertiesChanged(QString,QMap<QString,QVariant>)));
-
-    if (!QDBusConnection::systemBus().connect(QLatin1String(NM_DBUS_SERVICE),
-                              d->path,
-                              QLatin1String(NM_DBUS_INTERFACE_ACTIVE_CONNECTION),
-                              QLatin1String("PropertiesChanged"),
-                              nmDBusHelper,SLOT(activeConnectionPropertiesChanged(QMap<QString,QVariant>))) )  {
-        allOk = false;
-    }
-
-    return allOk;
+    return true;
 }
 
 QDBusInterface *QNetworkManagerConnectionActive::connectionInterface() const
@@ -963,30 +1219,67 @@ QDBusInterface *QNetworkManagerConnectionActive::connectionInterface() const
 
 QDBusObjectPath QNetworkManagerConnectionActive::connection() const
 {
-    QVariant prop = d->connectionInterface->property("Connection");
-    return prop.value<QDBusObjectPath>();
+    if (propertyMap.contains("Connection"))
+        return propertyMap.value("Connection").value<QDBusObjectPath>();
+    return QDBusObjectPath();
 }
 
 QDBusObjectPath QNetworkManagerConnectionActive::specificObject() const
 {
-    QVariant prop = d->connectionInterface->property("SpecificObject");
-    return prop.value<QDBusObjectPath>();
+    if (propertyMap.contains("SpecificObject"))
+        return propertyMap.value("SpecificObject").value<QDBusObjectPath>();
+    return QDBusObjectPath();
 }
 
 QList<QDBusObjectPath> QNetworkManagerConnectionActive::devices() const
 {
-    QVariant prop = d->connectionInterface->property("Devices");
-    return prop.value<QList<QDBusObjectPath> >();
+    if (propertyMap.contains("Devices")) {
+        const QDBusArgument &dbusArgs = propertyMap.value("Devices").value<QDBusArgument>();
+        QDBusObjectPath path;
+        QList <QDBusObjectPath> list;
+
+        dbusArgs.beginArray();
+        while (!dbusArgs.atEnd()) {
+            dbusArgs >> path;
+            list.append(path);
+        }
+        dbusArgs.endArray();
+
+        return list;
+    }
+    QList<QDBusObjectPath> list;
+    list << QDBusObjectPath();
+    return list;
 }
 
 quint32 QNetworkManagerConnectionActive::state() const
 {
-    return d->connectionInterface->property("State").toUInt();
+    if (propertyMap.contains("State"))
+        return propertyMap.value("State").toUInt();
+    return 0;
 }
 
 bool QNetworkManagerConnectionActive::defaultRoute() const
 {
-    return d->connectionInterface->property("Default").toBool();
+    if (propertyMap.contains("Default"))
+        return propertyMap.value("Default").toBool();
+    return false;
+}
+
+void QNetworkManagerConnectionActive::propertiesSwap(QMap<QString,QVariant> map)
+{
+    QMapIterator<QString, QVariant> i(map);
+    while (i.hasNext()) {
+        i.next();
+        propertyMap.insert(i.key(),i.value());
+        if (i.key() == QStringLiteral("State")) {
+            quint32 state = i.value().toUInt();
+            if (state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED
+                || state == NM_ACTIVE_CONNECTION_STATE_DEACTIVATED) {
+                Q_EMIT propertiesChanged(map);
+            }
+        }
+    }
 }
 
 class QNetworkManagerIp4ConfigPrivate
diff --git a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
index 11ddaf70882..df4e5d49e14 100644
--- a/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
+++ b/src/plugins/bearer/networkmanager/qnetworkmanagerservice.h
@@ -56,7 +56,6 @@
 #include <QtDBus/QDBusObjectPath>
 #include <QtDBus/QDBusContext>
 #include <QMap>
-#include "qnmdbushelper.h"
 
 #ifndef QT_NO_DBUS
 
@@ -89,7 +88,7 @@ typedef enum
     NM_ACTIVE_CONNECTION_STATE_UNKNOWN = 0,
     NM_ACTIVE_CONNECTION_STATE_ACTIVATING,
     NM_ACTIVE_CONNECTION_STATE_ACTIVATED,
-    NM_ACTIVE_CONNECTION_STATE_DEACTIVATED
+    NM_ACTIVE_CONNECTION_STATE_DEACTIVATED = 4
 } NMActiveConnectionState;
 
 #define NM_DBUS_SERVICE                     "org.freedesktop.NetworkManager"
@@ -135,12 +134,23 @@ class QNetworkManagerInterface : public QObject
     Q_OBJECT
 
 public:
+    typedef enum
+    {
+        NM_STATE_UNKNOWN = 0,
+        NM_STATE_ASLEEP = 10,
+        NM_STATE_DISCONNECTED = 20,
+        NM_STATE_DISCONNECTING = 30,
+        NM_STATE_CONNECTING = 40,
+        NM_STATE_CONNECTED_LOCAL = 50,
+        NM_STATE_CONNECTED_SITE = 60,
+        NM_STATE_CONNECTED_GLOBAL = 70
+    } NMState;
 
     QNetworkManagerInterface(QObject *parent = 0);
     ~QNetworkManagerInterface();
 
-    QList <QDBusObjectPath> getDevices() const;
-    void activateConnection(const QString &serviceName, QDBusObjectPath connection, QDBusObjectPath device, QDBusObjectPath specificObject);
+    QList <QDBusObjectPath> getDevices();
+    void activateConnection(QDBusObjectPath connection,QDBusObjectPath device, QDBusObjectPath specificObject);
     void deactivateConnection(QDBusObjectPath connectionPath) const;
 
     QDBusObjectPath path() const;
@@ -149,21 +159,28 @@ public:
     bool wirelessEnabled() const;
     bool wirelessHardwareEnabled() const;
     QList <QDBusObjectPath> activeConnections() const;
-    quint32 state();
+    NMState state();
+    QString version() const;
     bool setConnections();
     bool isValid();
 
 Q_SIGNALS:
     void deviceAdded(QDBusObjectPath);
     void deviceRemoved(QDBusObjectPath);
-    void propertiesChanged( const QString &, QMap<QString,QVariant>);
-    void stateChanged(const QString&, quint32);
+    void propertiesChanged(QMap<QString,QVariant>);
+    void stateChanged(quint32);
     void activationFinished(QDBusPendingCallWatcher*);
+    void propertiesReady();
+    void devicesListReady();
 
 private Q_SLOTS:
+    void propertiesSwap(QMap<QString,QVariant>);
+
 private:
     QNetworkManagerInterfacePrivate *d;
-    QNmDBusHelper *nmDBusHelper;
+    QVariantMap propertyMap;
+    QList<QDBusObjectPath> devicesPathList;
+
 };
 
 class QNetworkManagerInterfaceAccessPointPrivate;
@@ -228,11 +245,14 @@ public:
 
 Q_SIGNALS:
     void propertiesChanged(QMap <QString,QVariant>);
-    void propertiesChanged( const QString &, QMap<QString,QVariant>);
+    void propertiesReady();
+
+private Q_SLOTS:
+    void propertiesSwap(QMap<QString,QVariant>);
+
 private:
     QNetworkManagerInterfaceAccessPointPrivate *d;
-    QNmDBusHelper *nmDBusHelper;
-
+    QVariantMap propertyMap;
 };
 
 class QNetworkManagerInterfaceDevicePrivate;
@@ -258,11 +278,14 @@ public:
 
 Q_SIGNALS:
     void stateChanged(const QString &, quint32);
-    void propertiesChanged(const QString &, QMap<QString,QVariant>);
+    void propertiesChanged(QMap<QString,QVariant>);
     void connectionsChanged(QStringList);
+    void propertiesReady();
+private Q_SLOTS:
+    void propertiesSwap(QMap<QString,QVariant>);
 private:
     QNetworkManagerInterfaceDevicePrivate *d;
-    QNmDBusHelper *nmDBusHelper;
+    QVariantMap propertyMap;
 };
 
 class QNetworkManagerInterfaceDeviceWiredPrivate;
@@ -284,10 +307,15 @@ public:
     bool isValid();
 
 Q_SIGNALS:
-    void propertiesChanged( const QString &, QMap<QString,QVariant>);
+    void propertiesChanged(QMap<QString,QVariant>);
+    void propertiesReady();
+
+private Q_SLOTS:
+    void propertiesSwap(QMap<QString,QVariant>);
+
 private:
     QNetworkManagerInterfaceDeviceWiredPrivate *d;
-    QNmDBusHelper *nmDBusHelper;
+    QVariantMap propertyMap;
 };
 
 class QNetworkManagerInterfaceDeviceWirelessPrivate;
@@ -325,15 +353,24 @@ public:
 
     void requestScan();
 Q_SIGNALS:
-    void propertiesChanged( const QString &, QMap<QString,QVariant>);
+    void propertiesChanged(QMap<QString,QVariant>);
     void accessPointAdded(const QString &);
     void accessPointRemoved(const QString &);
     void scanDone();
+    void propertiesReady();
+    void accessPointsReady();
+
 private Q_SLOTS:
     void scanIsDone();
+    void propertiesSwap(QMap<QString,QVariant>);
+
+    void slotAccessPointAdded(QDBusObjectPath);
+    void slotAccessPointRemoved(QDBusObjectPath);
+
 private:
     QNetworkManagerInterfaceDeviceWirelessPrivate *d;
-    QNmDBusHelper *nmDBusHelper;
+    QVariantMap propertyMap;
+    QList <QDBusObjectPath> accessPointsList;
 };
 
 class QNetworkManagerInterfaceDeviceModemPrivate;
@@ -350,6 +387,7 @@ public:
         Gsm_Umts = 0x4,
         Lte = 0x08
        };
+    Q_DECLARE_FLAGS(ModemCapabilities, ModemCapability)
 
     explicit QNetworkManagerInterfaceDeviceModem(const QString &ifaceDevicePath,
                                                     QObject *parent = 0);
@@ -361,16 +399,22 @@ public:
     bool setConnections();
     bool isValid();
 
-    quint32 modemCapabilities() const;
-    quint32 currentCapabilities() const;
+    ModemCapabilities modemCapabilities() const;
+    ModemCapabilities currentCapabilities() const;
 
 Q_SIGNALS:
-    void propertiesChanged( const QString &, QMap<QString,QVariant>);
+    void propertiesChanged(QMap<QString,QVariant>);
+    void propertiesReady();
+
+private Q_SLOTS:
+    void propertiesSwap(QMap<QString,QVariant>);
+
 private:
     QNetworkManagerInterfaceDeviceModemPrivate *d;
-    QNmDBusHelper *nmDBusHelper;
+    QVariantMap propertyMap;
 };
 
+Q_DECLARE_OPERATORS_FOR_FLAGS(QNetworkManagerInterfaceDeviceModem::ModemCapabilities)
 
 class QNetworkManagerSettingsPrivate;
 class QNetworkManagerSettings : public QObject
@@ -390,8 +434,10 @@ public:
 
 Q_SIGNALS:
     void newConnection(QDBusObjectPath);
+    void connectionsListReady();
 private:
     QNetworkManagerSettingsPrivate *d;
+    QList <QDBusObjectPath> connectionsList;
 };
 
 class QNetworkManagerSettingsConnectionPrivate;
@@ -418,12 +464,14 @@ public:
     bool isValid();
 
 Q_SIGNALS:
-
     void updated();
     void removed(const QString &path);
+    void settingsReady();
+
+private Q_SLOTS:
+    void slotSettingsRemoved();
 
 private:
-    QNmDBusHelper *nmDBusHelper;
     QNetworkManagerSettingsConnectionPrivate *d;
 };
 
@@ -444,7 +492,6 @@ public:
     ~ QNetworkManagerConnectionActive();
 
     QDBusInterface  *connectionInterface() const;
-    QString serviceName() const;
     QDBusObjectPath connection() const;
     QDBusObjectPath specificObject() const;
     QList<QDBusObjectPath> devices() const;
@@ -455,11 +502,15 @@ public:
 
 
 Q_SIGNALS:
-    void propertiesChanged(QList<QDBusObjectPath>);
-    void propertiesChanged( const QString &, QMap<QString,QVariant>);
+    void propertiesChanged(QMap<QString,QVariant>);
+    void propertiesReady();
+
+private Q_SLOTS:
+    void propertiesSwap(QMap<QString,QVariant>);
+
 private:
     QNetworkManagerConnectionActivePrivate *d;
-    QNmDBusHelper *nmDBusHelper;
+    QVariantMap propertyMap;
 };
 
 class QNetworkManagerIp4ConfigPrivate;
diff --git a/src/plugins/bearer/networkmanager/qnmdbushelper.cpp b/src/plugins/bearer/networkmanager/qnmdbushelper.cpp
deleted file mode 100644
index 0decfd78b9e..00000000000
--- a/src/plugins/bearer/networkmanager/qnmdbushelper.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-// this class is for helping qdbus get stuff
-
-#include "qnmdbushelper.h"
-
-#include "qnetworkmanagerservice.h"
-
-#include <QDBusError>
-#include <QDBusInterface>
-#include <QDBusMessage>
-#include <QDBusReply>
-
-#include <QDebug>
-
-#ifndef QT_NO_DBUS
-
-QT_BEGIN_NAMESPACE
-
-QNmDBusHelper::QNmDBusHelper(QObject * parent)
-        : QObject(parent)
-{
-}
-
-QNmDBusHelper::~QNmDBusHelper()
-{
-}
-
-void QNmDBusHelper::deviceStateChanged(quint32 state)
- {
-    QDBusMessage msg = this->message();
-    if (state == NM_DEVICE_STATE_ACTIVATED
-       || state == NM_DEVICE_STATE_DISCONNECTED
-       || state == NM_DEVICE_STATE_UNAVAILABLE
-       || state == NM_DEVICE_STATE_FAILED) {
-        emit pathForStateChanged(msg.path(), state);
-    }
- }
-
-void QNmDBusHelper::slotAccessPointAdded(QDBusObjectPath path)
-{
-    if (path.path().length() > 2)
-        emit pathForAccessPointAdded(path.path());
-}
-
-void QNmDBusHelper::slotAccessPointRemoved(QDBusObjectPath path)
-{
-    if (path.path().length() > 2)
-        emit pathForAccessPointRemoved(path.path());
-}
-
-void QNmDBusHelper::slotPropertiesChanged(QMap<QString,QVariant> map)
-{
-    QDBusMessage msg = this->message();
-    QMapIterator<QString, QVariant> i(map);
-    while (i.hasNext()) {
-        i.next();
-        if (i.key() == QStringLiteral("State")) {
-            quint32 state = i.value().toUInt();
-            if (state == NM_DEVICE_STATE_ACTIVATED
-                || state == NM_DEVICE_STATE_DISCONNECTED
-                || state == NM_DEVICE_STATE_UNAVAILABLE
-                || state == NM_DEVICE_STATE_FAILED) {
-                emit pathForPropertiesChanged(msg.path(), map);
-            }
-        } else if (i.key() == QStringLiteral("ActiveAccessPoint")) {
-            emit pathForPropertiesChanged(msg.path(), map);
-        } else if (i.key() == QStringLiteral("ActiveConnections")) {
-            emit pathForPropertiesChanged(msg.path(), map);
-        } else if (i.key() == QStringLiteral("AvailableConnections")) {
-            const QDBusArgument &dbusArgs = i.value().value<QDBusArgument>();
-            QDBusObjectPath path;
-            QStringList paths;
-            dbusArgs.beginArray();
-            while (!dbusArgs.atEnd()) {
-                dbusArgs >> path;
-                paths << path.path();
-            }
-            dbusArgs.endArray();
-            emit pathForConnectionsChanged(paths);
-        }
-    }
-}
-
-void QNmDBusHelper::slotSettingsRemoved()
-{
-    QDBusMessage msg = this->message();
-    emit pathForSettingsRemoved(msg.path());
-}
-
-void QNmDBusHelper::activeConnectionPropertiesChanged(QMap<QString,QVariant> map)
-{
-    QDBusMessage msg = this->message();
-    QMapIterator<QString, QVariant> i(map);
-    while (i.hasNext()) {
-        i.next();
-        if (i.key() == QStringLiteral("State")) {
-            quint32 state = i.value().toUInt();
-            if (state == NM_ACTIVE_CONNECTION_STATE_ACTIVATED
-                || state == NM_ACTIVE_CONNECTION_STATE_DEACTIVATED) {
-                emit pathForPropertiesChanged(msg.path(), map);
-            }
-        }
-    }
-}
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_DBUS
diff --git a/src/plugins/bearer/networkmanager/qnmdbushelper.h b/src/plugins/bearer/networkmanager/qnmdbushelper.h
deleted file mode 100644
index e224af87f1d..00000000000
--- a/src/plugins/bearer/networkmanager/qnmdbushelper.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QNMDBUSHELPERPRIVATE_H
-#define QNMDBUSHELPERPRIVATE_H
-
-#include <QDBusObjectPath>
-#include <QDBusContext>
-#include <QMap>
-
-#ifndef QT_NO_DBUS
-
-QT_BEGIN_NAMESPACE
-
-class QNmDBusHelper: public QObject, protected QDBusContext
- {
-     Q_OBJECT
- public:
-    QNmDBusHelper(QObject *parent = 0);
-    ~QNmDBusHelper();
-
- public slots:
-    void deviceStateChanged(quint32);
-    void slotAccessPointAdded(QDBusObjectPath);
-    void slotAccessPointRemoved(QDBusObjectPath);
-    void slotPropertiesChanged(QMap<QString,QVariant>);
-    void slotSettingsRemoved();
-    void activeConnectionPropertiesChanged(QMap<QString,QVariant>);
-
-Q_SIGNALS:
-    void pathForStateChanged(const QString &, quint32);
-    void pathForAccessPointAdded(const QString &);
-    void pathForAccessPointRemoved(const QString &);
-    void pathForPropertiesChanged(const QString &, QMap<QString,QVariant>);
-    void pathForSettingsRemoved(const QString &);
-    void pathForConnectionsChanged(const QStringList &pathsList);
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_DBUS
-
-#endif// QNMDBUSHELPERPRIVATE_H
-- 
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