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authorJohn Fastabend <john.fastabend@gmail.com>2017-07-17 09:29:18 -0700
committerDavid S. Miller <davem@davemloft.net>2017-07-17 09:48:06 -0700
commit97f91a7cf04ff605845c20948b8a80e54cbd3376 (patch)
tree0d5c2872667d06e7e2a7f83253505c5170a0258b /include/linux/bpf.h
parent546ac1ffb70d25b56c1126940e5ec639c4dd7413 (diff)
bpf: add bpf_redirect_map helper routine
BPF programs can use the devmap with a bpf_redirect_map() helper routine to forward packets to netdevice in map. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/bpf.h')
-rw-r--r--include/linux/bpf.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index b69e7a5869ff..d0d3281ac678 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -379,4 +379,7 @@ extern const struct bpf_func_proto bpf_get_stackid_proto;
void bpf_user_rnd_init_once(void);
u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
+/* Map specifics */
+struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key);
+
#endif /* _LINUX_BPF_H */