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
