The interface can be accessed through CTRL and a socket. But currently
it is only available when the socket interface has been configured.
Create the interface all the time but only listen on the socket when
a path has been specified.
This stores the last SET rf_locked control command along with a
timestamp. The 'show network' vty command is extended to show
this information.
Ticket: OW#659
For short IP failures we want the RF to stay up and wait for
the re-connect but in case the A-link is gone too long it is
good to switch off the RF and wait for commands to enable it
again.
The first fields are still the location up to the height.
The next field is "operational" if any of the trx are operational,
otherwise "inoperational"
The second to last field contains "locked" if all of the trx are in the
admin state, otherwise "unlocked".
The last field represents the rf policy currently in effect. It is one
of (on|off|grace|unknown).
<tstamp>,<valid>,<lat>,<lon>,<height>,<oper>,<admin>,<policy>