[systemd-devel] Locking current session programmatically

[Jan Alexander Steffens]

Am 27.06.2014 15:45 schrieb "Ivan Shapovalov" <intelfx100 at gmail.com>:
>
> I want to lock my current session using a command-line tool (or a D-Bus
call).
>
> The only apparent way to do this is `loginctl lock-session
$XDG_SESSION_ID`.
> However, this results in an "Access denied" reply, which is somewhat
strange
> (I expect to be able to lock my own session).
>
> Is this by design or a bug? In either case, is it possible to lock the
current
> session?

As I understand logind doesn't keep any lock state. It just sends out Lock
or Unlock signals for sessions when certain things happen, such as a
session switch or forcing those signals to be sent using loginctl.

I guess nobody saw any value in letting a user lock their own sessions this
way, so the methods are privileged. The screen locking applications (such
as gnome-shell) already provide means to lock the session.
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