netdev - Re: namespaced vsock

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Message-ID: <myowlo6xpjrhbawt6sptwcqktm34zbfnsxzyo5eahcbspitwzq@ypssm5pe6q7m>
Date: Wed, 5 Jun 2024 18:00:25 +0200
From: Stefano Garzarella <sgarzare@...hat.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Stefan Hajnoczi <stefanha@...hat.com>, 
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: namespaced vsock

Hi Jakub,

On Wed, Jun 05, 2024 at 07:57:44AM GMT, Jakub Kicinski wrote:
>Hi Stefano!
>
>I found you patches from 2020 adding netns support to vsock.
>I got an internal ping from someone trying to run VMMs inside
>containers. Any plans on pushing that work forward? Is there
>a reason you stopped, or just EBUSY?
>

IIRC nothing too difficult to solve, but as you guessed more EBUSY ;-)

Maybe the more laborious one is somehow exporting a netdev interface 
into the guest to assign the device to a netns. But I hadn't tried to 
see if that was feasible yet. I have some notes here:
https://gitlab.com/vsock/vsock/-/issues/2

I've been planning to take it up several times but haven't found time 
for now, if there's anyone interested I'm happy to share information and 
help with review and feedback. Otherwise I try to allocate some time, 
but I can't promise anything in the short term.

Do you have time or anyone interested in continuing the work?

Thanks,
Stefano