WG: Need for HW-clock independent timestamps

Axel Neumann neumann at cgws.de
Mon May 21 13:52:34 CEST 2018

On 21.05.2018 13:22, Reto Brunner wrote:
> On Mon, May 21, 2018 at 12:07:38PM +0200, Axel Neumann wrote:
>> entirely superfluous. As discussed earlier [3] it can be achieved with
>> essentially one file-system write operation each boot.
> You might as well achieve the same with the timestamp.
> Just add a pre-shutdown hook, which touches a file.

yes, can be an option, but would only work in "normal" soft-shut-down
cases, not in case of a hard reset or power cycle. A not-so-uncommon
scenario for embedded home-network devices and community-network
deployments. Especially when considering the first choice of a  normal
user (desperately trying to fix its internet-via-WG tunnel connection):
Power cycle the device.


> Restore the system clock to this upon boot (which may very well be off
> but who cares).
> After the wg tunnel is back up, sync with any NTP server you trust and you
> are back up and running.
> What is the advantage of doing it with a counter?
> I fail to see the benefit.
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