Time sync

[Lennart Poettering]

On Fri, 27.03.15 17:01, Colin Walters (walters at verbum.org) wrote:

> This however would require NetworkManager -> timesyncd
> integration.  Filed that as
> https://bugzilla.gnome.org/show_bug.cgi?id=746911

So, what's missing here is actually a way for NM to tell timesyncd NTP
server information... timesyncd gets the data automatically from
networkd, but that's a private iface between the two. For us, from the
systemd side it really should be timesyncd that pulls the data from
networkd, i.e. that the upper layer pulls from the lower layer rather
than the lower layer pushing into the upper layer. NM never was never
so strict there with the layering...

Now, we intend to support NM (or in fact any other external config
source) pushing data into timesyncd, but this will probably not happen
before kdbus. The reason for this is that timesyncd runs in early boot
already, where classic dbus is not available. Adding a bus interface for
pushing NTP server info into timesyncd would hence either mean moving
timesyncd into late boot or dealing with the complexities of having to
reconnect when dbus appears. With kdbus this all goes away, as dbus
is then available from earliest boot to latest shutdown.

Lennart

-- 
Lennart Poettering, Red Hat