Re: [PATCH qemu-kvm] Add raw(af_packet) network backend to qemu

Anthony Liguori
2010-01-26T20:47:43Z

On 01/26/2010 02:40 PM, Sridhar Samudrala wrote:
> This patch adds raw socket backend to qemu and is based on Or Gerlitz's
> patch re-factored and ported to the latest qemu-kvm git tree.
> It also includes support for vnet_hdr option that enables gso/checksum
> offload with raw backend. You can find the linux kernel patch to support
> this feature here.
> http://thread.gmane.org/gmane.linux.network/150308
>
> Signed-off-by: Sridhar Samudrala<sri@us.ibm.com>
>

See the previous discussion about the raw backend from Or's original
patch. There's no obvious reason why we should have this in addition to
a tun/tap backend.

The only use-case I know of is macvlan but macvtap addresses this
functionality while not introduce the rather nasty security problems
associated with a raw backend.

Regards,

Anthony Liguori