GNU bug report logs - #63516
Static networking should wait for interfaces to be up

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Message #60 received at 63516-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: 63516-done <at> debbugs.gnu.org
Cc: Julien Lepiller <julien <at> lepiller.eu>
Subject: Re: bug#63516: Static networking should wait for interfaces to be up
Date: Wed, 14 Jun 2023 23:53:27 +0200

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Ludovic Courtès <ludovic.courtes <at> inria.fr> skribis:
>
>> Before doing ‘addr-add’ in ‘network-set-up/linux’, should we wait for
>> the interface to show up, by calling ‘get-links’ from Guile-Netlink or
>> something like that?
>
> Below is a simple workaround.  How does that sound?
>
> A better fix would be to poll(2) on the underlying AF_NETLINK socket.
> In fact, we could also implement something like systemd’s
> ‘network-online.target’ by doing that.  For that we’d need Guile-Netlink
> to let us create SOCK_NONBLOCK sockets and to use real ports instead of
> raw file descriptors; Fibers would then take care of the rest.

Pushed the “better fix” as 26602f4063a6e0c626e8deb3423166bcd0abeb90,
building upon ‘wait-for-link’ from Guile-Netlink 1.2.

Thank you Julien for the Guile-Netlink release!

Ludo’.

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