core: add Version property to org.freedesktop.NetworkManager interface

introspection/nm-manager-client.xml

@@ -61,6 +61,7 @@ object.  dbus-glib generates the same bound function names for D-Bus the methods
     <property name="WwanEnabled" type="b" access="readwrite"/>
     <property name="WwanHardwareEnabled" type="b" access="read"/>
     <property name="ActiveConnections" type="ao" access="read"/>
+    <property name="Version" type="s" access="read"/>
     <property name="State" type="u" access="read"/>
 
     <signal name="StateChanged">

introspection/nm-manager.xml

@@ -206,6 +206,12 @@
       </tp:docstring>
     </property>
 
+    <property name="Version" type="s" access="read">
+      <tp:docstring>
+        NetworkManager version.
+      </tp:docstring>
+    </property>
+
     <property name="State" type="u" access="read" tp:type="NM_STATE">
       <tp:docstring>
         The overall state of the NetworkManager daemon.

src/nm-manager.c

@@ -274,6 +274,7 @@ static guint signals[LAST_SIGNAL] = { 0 };
 
 enum {
 	PROP_0,
+	PROP_VERSION,
 	PROP_STATE,
 	PROP_NETWORKING_ENABLED,
 	PROP_WIRELESS_ENABLED,
@@ -4398,6 +4399,9 @@ get_property (GObject *object, guint prop_id,
 	NMManagerPrivate *priv = NM_MANAGER_GET_PRIVATE (self);
 
 	switch (prop_id) {
+	case PROP_VERSION:
+		g_value_set_string (value, VERSION);
+		break;
 	case PROP_STATE:
 		nm_manager_update_state (self);
 		g_value_set_uint (value, priv->state);
@@ -4587,6 +4591,14 @@ nm_manager_class_init (NMManagerClass *manager_class)
 	object_class->dispose = dispose;
 
 	/* properties */
+	g_object_class_install_property
+		(object_class, PROP_VERSION,
+		 g_param_spec_string (NM_MANAGER_VERSION,
+		                      "Version",
+		                      "NetworkManager version",
+		                      NULL,
+		                      G_PARAM_READABLE));
+
 	g_object_class_install_property
 		(object_class, PROP_STATE,
 		 g_param_spec_uint (NM_MANAGER_STATE,

src/nm-manager.h

@@ -35,6 +35,7 @@
 #define NM_IS_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((obj), NM_TYPE_MANAGER))
 #define NM_MANAGER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_MANAGER, NMManagerClass))
 
+#define NM_MANAGER_VERSION "version"
 #define NM_MANAGER_STATE "state"
 #define NM_MANAGER_NETWORKING_ENABLED "networking-enabled"
 #define NM_MANAGER_WIRELESS_ENABLED "wireless-enabled"