diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2020-06-02 16:58:34 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-06-02 11:50:23 -0700 |
| commit | c4ba153b6501fa7ccfdc7e57946fb1d6011e36e8 (patch) | |
| tree | 47088e7997d1baf81e988db64874164ff5bbe234 | |
| parent | 7cdec54f9713256bb170873a1fc5c75c9127c9d2 (diff) | |
| download | linux-c4ba153b6501fa7ccfdc7e57946fb1d6011e36e8.tar.bz2 | |
bpf, selftests: Adapt cls_redirect to call csum_level helper
Adapt bpf_skb_adjust_room() to pass in BPF_F_ADJ_ROOM_NO_CSUM_RESET flag and
use the new bpf_csum_level() helper to inc/dec the checksum level by one after
the encap/decap.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Lorenz Bauer <lmb@cloudflare.com>
Link: https://lore.kernel.org/bpf/e7458f10e3f3d795307cbc5ad870112671d9c6f7.1591108731.git.daniel@iogearbox.net
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_cls_redirect.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect.c b/tools/testing/selftests/bpf/progs/test_cls_redirect.c index 1668b993eb86..f0b72e86bee5 100644 --- a/tools/testing/selftests/bpf/progs/test_cls_redirect.c +++ b/tools/testing/selftests/bpf/progs/test_cls_redirect.c @@ -380,9 +380,10 @@ static ret_t accept_locally(struct __sk_buff *skb, encap_headers_t *encap) } if (bpf_skb_adjust_room(skb, -encap_overhead, BPF_ADJ_ROOM_MAC, - BPF_F_ADJ_ROOM_FIXED_GSO)) { + BPF_F_ADJ_ROOM_FIXED_GSO | + BPF_F_ADJ_ROOM_NO_CSUM_RESET) || + bpf_csum_level(skb, BPF_CSUM_LEVEL_DEC)) return TC_ACT_SHOT; - } return bpf_redirect(skb->ifindex, BPF_F_INGRESS); } @@ -472,7 +473,9 @@ static ret_t forward_with_gre(struct __sk_buff *skb, encap_headers_t *encap, } if (bpf_skb_adjust_room(skb, delta, BPF_ADJ_ROOM_NET, - BPF_F_ADJ_ROOM_FIXED_GSO)) { + BPF_F_ADJ_ROOM_FIXED_GSO | + BPF_F_ADJ_ROOM_NO_CSUM_RESET) || + bpf_csum_level(skb, BPF_CSUM_LEVEL_INC)) { metrics->errors_total_encap_adjust_failed++; return TC_ACT_SHOT; } |