diff options
| author | Jakub Sitnicki <jakub@cloudflare.com> | 2025-11-05 21:19:52 +0100 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2025-11-10 10:52:33 -0800 |
| commit | 85d454afef612f880c69cb39a7d74772a24411d3 (patch) | |
| tree | 351d7509b227be3737bdda473e324e412c81a03f /tools/testing/selftests/bpf/prog_tests | |
| parent | 29960e635b01b148e6db5a84957f99423fd85464 (diff) | |
selftests/bpf: Cover skb metadata access after change_head/tail helper
Add a test to verify that skb metadata remains accessible after calling
bpf_skb_change_head() and bpf_skb_change_tail(), which modify packet
headroom/tailroom and can trigger head reallocation.
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-15-5ceb08a9b37b@cloudflare.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c index a3b82cf2f9e9..65735a134abb 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c @@ -497,6 +497,11 @@ void test_xdp_context_tuntap(void) skel->progs.helper_skb_adjust_room, NULL, /* tc prio 2 */ &skel->bss->test_pass); + if (test__start_subtest("helper_skb_change_head_tail")) + test_tuntap(skel->progs.ing_xdp, + skel->progs.helper_skb_change_head_tail, + NULL, /* tc prio 2 */ + &skel->bss->test_pass); test_xdp_meta__destroy(skel); } |