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samples/bpf: extend test_tunnel_bpf.sh with xfrm state test

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Add a test for fetching xfrm state parameters from a tc program running
on ingress.

Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Eyal Birger
2018-04-24 17:50:30 +03:00
committed by Daniel Borkmann
parent 12bed760a7
commit 29a36f9eef
4 changed files with 114 additions and 2 deletions
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4
tools/testing/selftests/bpf/bpf_helpers.h
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@@ -98,7 +98,9 @@ static int (*bpf_bind)(void *ctx, void *addr, int addr_len) =
(void *) BPF_FUNC_bind;
static int (*bpf_xdp_adjust_tail)(void *ctx, int offset) =
(void *) BPF_FUNC_xdp_adjust_tail;
static int (*bpf_skb_get_xfrm_state)(void *ctx, int index, void *state,
int size, int flags) =
(void *) BPF_FUNC_skb_get_xfrm_state;
/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions