examples: add a Qt example for setting manual IPv4 addresses into a connection

configure.ac

@@ -268,7 +268,7 @@ AC_SUBST(GIO_LIBS)
 GOBJECT_INTROSPECTION_CHECK([0.9.6])
 
 # Qt4
-PKG_CHECK_MODULES(QT, [Qt >= 4 QtCore QtDBus], [have_qt=yes],[have_qt=no])
+PKG_CHECK_MODULES(QT, [Qt >= 4 QtCore QtDBus QtNetwork], [have_qt=yes],[have_qt=no])
 AC_ARG_ENABLE(qt, AS_HELP_STRING([--enable-qt], [enable Qt examples]),
                      [enable_qt=${enableval}], [enable_qt=${have_qt}])
 if (test "${enable_qt}" = "yes"); then

examples/C/qt/Makefile.am

@@ -6,7 +6,8 @@ AM_CPPFLAGS = \
 
 noinst_PROGRAMS = \
 	add-connection-wired \
-	list-connections
+	list-connections \
+	change-ipv4-addresses
 
 add_connection_wired_SOURCES = add-connection-wired.cpp
 add_connection_wired_LDADD = \
@@ -18,7 +19,13 @@ list_connections_LDADD = \
 	$(DBUS_LIBS) \
 	$(QT_LIBS)
 
+change_ipv4_addresses_SOURCES = change-ipv4-addresses.cpp
+change_ipv4_addresses_LDADD = \
+	$(DBUS_LIBS) \
+	$(QT_LIBS)
+
 EXTRA_DIST = \
 	add-connection-wired.cpp \
-	list-connections.cpp
+	list-connections.cpp \
+	change-ipv4-addresses.cpp
 

examples/C/qt/change-ipv4-addresses.cpp

+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * (C) Copyright 2011 Red Hat, Inc.
+ */
+
+/*
+ * This example shows how to set manual IPv4 addresses to a connection.
+ * It uses Qt and D-Bus libraries to do that.
+ *
+ * Standalone compilation:
+ * g++ -Wall `pkg-config --libs --cflags NetworkManager QtCore QtDBus QtNetwork` change-ipv4-addresses.cpp -o change-ipv4-addresses
+ *
+ * You don't need to have NetworkManager devel package installed; you can just
+ * grab NetworkManager.h and put it in the path
+ */
+
+#include <QtDBus/QDBusConnection>
+#include <QtDBus/QDBusInterface>
+#include <QtDBus/QDBusMetaType>
+#include <QtDBus/QDBusReply>
+#include <QtCore/QList>
+#include <QtCore/QMap>
+#include <QtCore/QString>
+#include <QtCore/QDebug>
+#include <QtNetwork/QHostAddress>
+
+#include "arpa/inet.h"
+
+#include "NetworkManager.h"
+
+typedef QMap<QString, QMap<QString, QVariant> > Connection;
+Q_DECLARE_METATYPE(Connection)
+Q_DECLARE_METATYPE(QList<uint>);
+Q_DECLARE_METATYPE(QList<QList<uint> >);
+
+const QString NM_SETTING_CONNECTION_SETTING_NAME = "connection";
+const QString NM_SETTING_CONNECTION_ID = "id";
+const QString NM_SETTING_CONNECTION_UUID = "uuid";
+
+
+const QString getConnection(const QString& connectionUuid, Connection *found_connection)
+{
+    Connection settings;
+    QDBusInterface *ifaceForSettings;
+
+    // Create a D-Bus proxy; NM_DBUS_* defined in NetworkManager.h
+    QDBusInterface interface(
+        NM_DBUS_SERVICE,
+        NM_DBUS_PATH_SETTINGS,
+        NM_DBUS_IFACE_SETTINGS,
+        QDBusConnection::systemBus());
+
+    // Get connection list and find the connection with 'connectionUuid'
+    QDBusReply<QList<QDBusObjectPath> > result1 = interface.call("ListConnections");
+
+    foreach (const QDBusObjectPath& connection, result1.value()) {
+        ifaceForSettings = new QDBusInterface(
+                                    NM_DBUS_SERVICE,
+                                    connection.path(),
+                                    NM_DBUS_IFACE_SETTINGS_CONNECTION,
+                                    QDBusConnection::systemBus());
+        QDBusReply<Connection> result2 = ifaceForSettings->call("GetSettings");
+        delete ifaceForSettings;
+
+        settings = result2.value();
+        QVariantMap connectionSettings = settings.value(NM_SETTING_CONNECTION_SETTING_NAME);
+        QString uuid = connectionSettings.value(NM_SETTING_CONNECTION_UUID).toString();
+
+        if (uuid == connectionUuid) {
+            // Connection found; set the settings to found_connection
+            // connection object path
+            *found_connection = settings;
+            return connection.path();
+        }
+    }
+
+    return QString();
+}
+
+void changeConnection(const QString& uuid)
+{
+    // Register types with D-Bus
+    qDBusRegisterMetaType<Connection>();
+    qDBusRegisterMetaType<QList<uint> >();
+    qDBusRegisterMetaType<QList<QList<uint> > >();
+
+    Connection connection;
+    QString conPath;
+
+    // Find connection by provided UUID
+    conPath = getConnection(uuid, &connection);
+
+    if (!conPath.isEmpty()) {
+        QList<QList<uint> > addresses;
+        QList<uint> addr1, addr2;
+
+        // Add some addresses
+        addr1 << htonl(QHostAddress("192.168.100.4").toIPv4Address()) << 24 << htonl(QHostAddress("192.168.100.1").toIPv4Address());
+        addr2 << htonl(QHostAddress("10.0.1.222").toIPv4Address()) << 8 << htonl(QHostAddress("10.0.1.254").toIPv4Address());
+        addresses << addr1 << addr2;
+
+        // Set method to "Manual" and put addresses to the connection map
+        connection["ipv4"]["method"] = "manual";
+        connection["ipv4"]["addresses"] = QVariant::fromValue(addresses);
+
+        QDBusInterface interface(
+            NM_DBUS_SERVICE,
+            conPath,
+            NM_DBUS_IFACE_SETTINGS_CONNECTION,
+            QDBusConnection::systemBus());
+
+        // Call Update() D-Bus method to update connection
+        QDBusReply<void> result = interface.call("Update", QVariant::fromValue(connection));
+        if (result.isValid()) {
+            qDebug() << QString("Connection successfully updated (path %1)").arg(conPath);
+        } else {
+           qDebug() << QString("Error: could not update connection: %1 %2").arg(result.error().name()).arg(result.error().message());
+        }
+    } else {
+            qDebug() << QString("Error: connection with UUID '%1' not found").arg(uuid);
+    }
+}
+
+int main(int argc, char *argv[])
+{
+    if (argc != 2) {
+        qDebug() << QString("Usage: %1 <UUID>").arg(argv[0]);
+        return -1;
+    }
+
+    changeConnection(argv[1]);
+}