diff options
| author | Vadim Fedorenko <vadfed@meta.com> | 2024-06-06 07:58:51 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2024-06-13 14:29:53 +0200 |
| commit | 041c1dc988fdffd5eb0c13f1ce5d1b3b0125f208 (patch) | |
| tree | 81b6698d112bb09cd4ee9a04c79a397d02110abd /tools/testing/selftests/bpf | |
| parent | a3cfe84cca28f205761a0450016593b0d728165e (diff) | |
selftests/bpf: Validate CHECKSUM_COMPLETE option
Adjust skb program test to run with checksum validation.
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240606145851.229116-2-vadfed@meta.com
Diffstat (limited to 'tools/testing/selftests/bpf')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/skb_pkt_end.c | 11 |
2 files changed, 11 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c b/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c index ae93411fd582..09ca13bdf6ca 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c +++ b/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c @@ -11,6 +11,7 @@ static int sanity_run(struct bpf_program *prog) .data_in = &pkt_v4, .data_size_in = sizeof(pkt_v4), .repeat = 1, + .flags = BPF_F_TEST_SKB_CHECKSUM_COMPLETE, ); prog_fd = bpf_program__fd(prog); diff --git a/tools/testing/selftests/bpf/progs/skb_pkt_end.c b/tools/testing/selftests/bpf/progs/skb_pkt_end.c index db4abd2682fc..3bb4451524a1 100644 --- a/tools/testing/selftests/bpf/progs/skb_pkt_end.c +++ b/tools/testing/selftests/bpf/progs/skb_pkt_end.c @@ -33,6 +33,8 @@ int main_prog(struct __sk_buff *skb) struct iphdr *ip = NULL; struct tcphdr *tcp; __u8 proto = 0; + int urg_ptr; + u32 offset; if (!(ip = get_iphdr(skb))) goto out; @@ -48,7 +50,14 @@ int main_prog(struct __sk_buff *skb) if (!tcp) goto out; - return tcp->urg_ptr; + urg_ptr = tcp->urg_ptr; + + /* Checksum validation part */ + proto++; + offset = sizeof(struct ethhdr) + offsetof(struct iphdr, protocol); + bpf_skb_store_bytes(skb, offset, &proto, sizeof(proto), BPF_F_RECOMPUTE_CSUM); + + return urg_ptr; out: return -1; } |