Brenden Blanco 6a773a15a1 bpf: add XDP prog type for early driver filter ... 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 <bblanco@plumgrid.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-07-19 21:46:31 -07:00
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arraymap.c	bpf: bpf_event_entry_gen's alloc needs to be in atomic context	2016-07-16 22:03:39 -07:00
core.c	bpf: avoid stack copy and use skb ctx for event output	2016-07-15 14:23:56 -07:00
hashtab.c	bpf: pre-allocate hash map elements	2016-03-08 15:28:31 -05:00
helpers.c	bpf: don't use raw processor id in generic helper	2016-06-30 05:54:40 -04:00
inode.c	bpf: make inode code explicitly non-modular	2016-07-11 13:52:43 -07:00
Makefile	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
percpu_freelist.c	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
percpu_freelist.h	bpf: introduce percpu_freelist	2016-03-08 15:28:31 -05:00
stackmap.c	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-05-25 17:05:40 -07:00
syscall.c	bpf: add bpf_prog_add api for bulk prog refcnt	2016-07-19 21:46:31 -07:00
verifier.c	bpf: add XDP prog type for early driver filter	2016-07-19 21:46:31 -07:00