/var/lib/polkit-1/localauthority/10-vendor.d/geoclue-2.0.pkla is in geoclue-2.0 2.4.7-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | [Allow geoclue to query the location of a modem]
Identity=unix-user:geoclue
Action=org.freedesktop.ModemManager1.Device.Control;org.freedesktop.ModemManager1.Location
ResultAny=yes
ResultInactive=yes
ResultActive=yes
|