On Tue, Jul 19, 2016 at 12:16:47PM -0700, Brenden Blanco wrote: > Add a new bpf prog type that is intended to run in early stages of the > packet rx path. Only minimal packet metadata will be available, hence a > new context type, struct xdp_md, is exposed to userspace. So far only > expose the packet start and end pointers, and only in read mode. > > An XDP program must return one of the well known enum values, all other > return codes are reserved for future use. Unfortunately, this > restriction is hard to enforce at verification time, so take the > approach of warning at runtime when such programs are encountered. Out > of bounds return codes should alias to XDP_ABORTED. > > Signed-off-by: Brenden Blanco <bbla...@plumgrid.com>
Acked-by: Alexei Starovoitov <a...@kernel.org>
