The policy kit and HAL node device drivers both require a

DBus connection. The HAL device code further requires that
the DBus connection is integrated with the event loop and
provides such glue logic itself.

The forthcoming FirewallD integration also requires a
dbus connection with event loop integration. Thus we need
to pull the current event loop glue out of the HAL driver.

Thus we create src/util/virdbus.{c,h} files. This contains
just one method virDBusGetSystemBus() which obtains a handle
to the single shared system bus instance, with event glue
automagically setup.

po/POTFILES.in

@@ -128,6 +128,7 @@ src/util/util.c
 src/util/viraudit.c
 src/util/virauth.c
 src/util/virauthconfig.c
+src/util/virdbus.c
 src/util/virfile.c
 src/util/virhash.c
 src/util/virkeyfile.c