From: Stefano Garzarella <sgarzare@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: davem@davemloft.net, Stefan Hajnoczi <stefanha@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
linux-kernel@vger.kernel.org, Jorgen Hansen <jhansen@vmware.com>,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
linux-hyperv@vger.kernel.org, Dexuan Cui <decui@microsoft.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH net-next 0/3] vsock: support network namespace
Date: Tue, 28 Apr 2020 18:00:52 +0200 [thread overview]
Message-ID: <20200428160052.o3ihui4262xogyg4@steredhat> (raw)
In-Reply-To: <224cdc10-1532-7ddc-f113-676d43d8f322@redhat.com>
On Tue, Apr 28, 2020 at 04:13:22PM +0800, Jason Wang wrote:
>
> On 2020/4/27 下午10:25, Stefano Garzarella wrote:
> > Hi David, Michael, Stefan,
> > I'm restarting to work on this topic since Kata guys are interested to
> > have that, especially on the guest side.
> >
> > While working on the v2 I had few doubts, and I'd like to have your
> > suggestions:
> >
> > 1. netns assigned to the device inside the guest
> >
> > Currently I assigned this device to 'init_net'. Maybe it is better
> > if we allow the user to decide which netns assign to the device
> > or to disable this new feature to have the same behavior as before
> > (host reachable from any netns).
> > I think we can handle this in the vsock core and not in the single
> > transports.
> >
> > The simplest way that I found, is to add a new
> > IOCTL_VM_SOCKETS_ASSIGN_G2H_NETNS to /dev/vsock to enable the feature
> > and assign the device to the same netns of the process that do the
> > ioctl(), but I'm not sure it is clean enough.
> >
> > Maybe it is better to add new rtnetlink messages, but I'm not sure if
> > it is feasible since we don't have a netdev device.
> >
> > What do you suggest?
>
>
> As we've discussed, it should be a netdev probably in either guest or host
> side. And it would be much simpler if we want do implement namespace then.
> No new API is needed.
>
Thanks Jason!
It would be cool, but I don't have much experience on netdev.
Do you see any particular obstacles?
I'll take a look to understand how to do it, surely in the guest would
be very useful to have the vsock device as a netdev and maybe also in the host.
Stefano
next prev parent reply other threads:[~2020-04-28 16:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 17:24 [PATCH net-next 0/3] vsock: support network namespace Stefano Garzarella
2020-01-16 17:24 ` [PATCH net-next 1/3] vsock: add network namespace support Stefano Garzarella
2020-01-20 9:06 ` David Miller
2020-01-20 10:17 ` Stefano Garzarella
2020-01-20 12:03 ` Michael S. Tsirkin
2020-01-20 13:58 ` Stefano Garzarella
2020-01-20 16:04 ` Michael S. Tsirkin
2020-01-20 16:53 ` Stefano Garzarella
2020-01-20 22:02 ` Michael S. Tsirkin
2020-01-21 9:07 ` Stefano Garzarella
2020-01-21 11:14 ` Michael S. Tsirkin
2020-01-21 13:13 ` Stefano Garzarella
2020-01-21 15:43 ` Stefan Hajnoczi
2020-01-21 13:59 ` Stefan Hajnoczi
2020-01-21 14:31 ` Michael S. Tsirkin
2020-01-21 15:44 ` Stefan Hajnoczi
2020-01-16 17:24 ` [PATCH net-next 2/3] vsock/virtio_transport_common: handle netns of received packets Stefano Garzarella
2020-01-16 17:24 ` [PATCH net-next 3/3] vhost/vsock: use netns of process that opens the vhost-vsock device Stefano Garzarella
2020-01-21 15:50 ` [PATCH net-next 0/3] vsock: support network namespace Stefan Hajnoczi
2020-01-22 9:13 ` Stefano Garzarella
2020-04-27 14:25 ` Stefano Garzarella
2020-04-27 14:31 ` Michael S. Tsirkin
2020-04-27 15:21 ` Stefano Garzarella
2020-04-28 8:13 ` Jason Wang
2020-04-28 16:00 ` Stefano Garzarella [this message]
2020-04-29 9:21 ` Jason Wang
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