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From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: reiner otto <augustus_meyer@yahoo.de>,
	neumann@cgws.de, Kalin KOZHUHAROV <me.kalin@gmail.com>
Cc: WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: Need for HW-clock independent timestamps
Date: Sun, 13 May 2018 14:35:36 +0200	[thread overview]
Message-ID: <87mux3wx5z.fsf@toke.dk> (raw)
In-Reply-To: <1324673763.992877.1526187430298@mail.yahoo.com>

reiner otto <augustus_meyer@yahoo.de> writes:

> Having implemented this solution already, I consider it some type of
> hack, as the standard time sync unfortunately happens very late in the
> start of the services, after rc.local called. And the sync might take
> quite some time.
>
> Which means, I had to "hack" the time sync immediately after WAN up,
> and to be done in a single shot, before starting WG.

Yeah, messing init script order is going to be hackish. You'd want to
add a hotplug script to react to when the NTP daemon syncs and apply
config after that. See the dnsmasq hotplug script for an example:

https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/network/services/dnsmasq/files/dnsmasqsec.hotplug;h=781d5337348bb8e927bd15f1caac94a5e7a9ba63;hb=HEAD

For WG it should be necessary to wait to configure the wg interfaces;
they just won't validate correctly until time is fixed. So you could
configure the interfaces in /etc/config/network and just have the
hotplug script add the default route (or whatever your needs are).

> However, as a real RTC is rather cheap, it might be a good idea, in
> case of commercial apps, to ask the supplier of the device to be used
> for the inclusion of a RTC. The more requests, the better the chances
> to find more devices with RTC included.

Sure, for people who are building their own hardware. Most people
aren't, though...

-Toke

  reply	other threads:[~2018-05-13 12:32 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1324673763.992877.1526187430298.ref@mail.yahoo.com>
2018-05-13  4:57 ` Need for HW-clock independent timestamps reiner otto
2018-05-13 12:35   ` Toke Høiland-Jørgensen [this message]
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
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

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