Netdevice API

[DBLouis]

The "netdevice" API defined here: https://man7.org/linux/man-pages/man7/netdevice.7.html, seems to be missing.
I can do a PR with a little help on where to start.

[joshtriplett]

I don't think we should add things that have been obsoleted by netlink (for which I'd suggest the excellent neli crate), but to the extent there are ioctl interfaces that have no netlink equivalent, by all means.

[minghu6]

I don't think we should add things that have been obsoleted by netlink (for which I'd suggest the excellent neli crate), but to the extent there are ioctl interfaces that have no netlink equivalent, by all means.

The ioctl doesn't be obsoleted by netlink actually in practice, See this lwn article

[xizheyin]

Is anyone doing it now? If not I can do this. But I may need some guidance as well, this is my first time writing code for this crate.