From: Matthias Urlichs <matthias@urlichs.de>
To: wireguard@lists.zx2c4.com
Subject: Re: Need for HW-clock independent timestamps
Date: Wed, 16 May 2018 09:10:58 +0200 [thread overview]
Message-ID: <80879e37-f981-434b-e7ea-b512ce202894@urlichs.de> (raw)
In-Reply-To: <CAKXLc7drht4CVexsCTXwHe-Z_RyFghAhQsXom=z9dtQuxQU48Q@mail.gmail.com>
On 15.05.2018 22:49, Kalin KOZHUHAROV wrote:
> [1] Can anyone point me to the piece in code that shows that
> precision? In other words, how far apart can 2 peers' clocks be and
> still connect.
Infinite.
Seriously. The timestamp field is essentially a counter. It just counts
up in rather large time-based increments and happens to be seeded with
the current time, in the current implementation that is. If you forego
all of that, seed it with one, and make sure that there'll never be a
decrement (for instance by saving the current value + a trillion after
every reboot – you don't reboot a router often enough to endanger your
flash that way) you're all set.
--
-- Matthias Urlichs
next prev parent reply other threads:[~2018-05-16 7:11 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-11 22:07 WG: " 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 [this message]
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
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] <1324673763.992877.1526187430298.ref@mail.yahoo.com>
2018-05-13 4:57 ` reiner otto
2018-05-13 12:35 ` Toke Høiland-Jørgensen
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