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xdp: add trace event for xdp redirect

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This adds a trace event for xdp redirect which may help when debugging
XDP programs that use redirect bpf commands.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend
2017-07-17 09:28:35 -07:00
committed by David S. Miller
parent 6453073987
commit 5acaee0a89
4 changed files with 43 additions and 7 deletions
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4
include/linux/filter.h
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@@ -713,7 +713,9 @@ struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off,
const struct bpf_insn *patch, u32 len);
int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb);
int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp);
int xdp_do_redirect(struct net_device *dev,
struct xdp_buff *xdp,
struct bpf_prog *prog);
void bpf_warn_invalid_xdp_action(u32 act);
void bpf_warn_invalid_xdp_redirect(u32 ifindex);