Comment 3 for bug 1164879

This is the upstream bug https://bugzilla.gnome.org/show_bug.cgi?id=689741.
Please read the upstream discussion and chime in.

If you backport the following commit then your scripts should get the data:
http://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=11f9855223966c4fd927fe83e2cd9a623a74acad