Querying NetworkManager via dbus as regular user yields "permission denied"
when it should not:

dbus-send --system --print-reply --dest=org.freedesktop.NetworkManager
/org/freedesktop/NetworkManager/Settings/40
org.freedesktop.NetworkManager.Settings.Connection.GetSetting

Error org.freedesktop.NetworkManager.Settings.PermissionDenied: uid 1000 has no
permission to perform this operation

It does however work when issued as root.

According to
https://developer.gnome.org/NetworkManager/unstable/spec.html#org.freedesktop.NetworkManager.Settings.Connection
GetSetting does not query any security relevant data, so I assume it should
work as regular user.

nm-tool issues similiar errors:


** (process:7865): WARNING **: Could not create object for
/org/freedesktop/NetworkManager/Settings/43: uid 1000 has no permission to
perform this operation

** (process:7865): WARNING **: handle_property_changed: failed to update
property 'available-connections' of object type NMDeviceModem.

NetworkManager Tool

State: connected (global)


** (process:7865): WARNING **: error: cannot retrieve connection: uid 1000 has
no permission to perform this operation

Unfortunately I've not been able to locate the exact problem be it dbus, polkit
or networkmanager.