From: Axel Neumann <neumann@cgws.de>
To: wireguard@lists.zx2c4.com
Subject: Re: WG: Need for HW-clock independent timestamps
Date: Mon, 21 May 2018 13:52:34 +0200 [thread overview]
Message-ID: <97874cad-ac60-5a88-a384-f036f9688668@cgws.de> (raw)
In-Reply-To: <20180521112235.v2ksniasmd36kern@ghostArch.localdomain>
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.
/axel
> 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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next prev parent reply other threads:[~2018-05-21 11:51 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-11 22:07 WG: Need for HW-clock independent timestamps Axel Neumann
2018-05-11 22:45 ` Kalin KOZHUHAROV
2018-05-12 0:05 ` Glen Bojsza
2018-05-12 19:29 ` Axel Neumann
2018-05-12 19:41 ` Aaron Jones
2018-05-15 20:21 ` Devan Carpenter
2018-05-15 20:49 ` Kalin KOZHUHAROV
2018-05-16 7:10 ` Matthias Urlichs
2018-05-16 19:32 ` Axel Neumann
2018-05-16 20:32 ` Steve Gilberd
2018-05-17 3:40 ` Paul
2018-05-17 5:03 ` Roman Mamedov
2018-05-17 5:53 ` Matthias Urlichs
2018-05-17 7:07 ` Axel Neumann
2018-05-17 8:28 ` Matthias Urlichs
2018-05-16 20:35 ` Kalin KOZHUHAROV
2018-05-12 22:10 ` Toke Høiland-Jørgensen
2018-05-12 23:05 ` Reuben Martin
2018-05-13 6:11 ` Matthias Urlichs
2018-05-13 12:37 ` Toke Høiland-Jørgensen
2018-05-16 7:01 ` Axel Neumann
2018-05-16 9:38 ` Toke Høiland-Jørgensen
2018-05-16 11:08 ` Matthias Urlichs
2018-05-16 11:12 ` Axel Neumann
2018-05-13 14:21 ` Wang Jian
2018-05-21 10:07 ` WG: " Axel Neumann
2018-05-21 11:22 ` Reto Brunner
2018-05-21 11:52 ` Axel Neumann [this message]
2018-05-21 12:31 ` Axel Neumann
2018-05-21 12:35 ` Reto Brunner
2018-05-21 13:53 ` Matthias Urlichs
2018-05-21 14:56 ` Bruno Wolff III
2018-05-21 15:34 ` Matthias Urlichs
2018-05-22 20:25 ` Ivan Labáth
2018-05-23 2:51 ` Matthias Urlichs
2019-02-04 14:56 ` Jason A. Donenfeld
2019-02-23 4:00 ` Axel Neumann
2019-02-23 12:35 ` Ivan Labáth
[not found] <1522499692.6109802.1526903933505.ref@mail.yahoo.com>
2018-05-21 11:58 ` reiner otto
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