diff options
| author | Tao Chen <chen.dylane@linux.dev> | 2025-06-07 00:58:15 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2025-06-09 16:45:17 -0700 |
| commit | d77efc0ef5b0adb0de3c15f5c9d33ea6d60bd449 (patch) | |
| tree | da74349a0048e82aa3e43b05e1a8d186c8d09954 | |
| parent | c7beb48344d2ea0f3f1869b078309dbeb2ed4c96 (diff) | |
selftests/bpf: Add cookies check for tracing fill_link_info test
Adding tests for getting cookie with fill_link_info for tracing.
Signed-off-by: Tao Chen <chen.dylane@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250606165818.3394397-2-chen.dylane@linux.dev
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/bpf_cookie.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c index 0774ae6c1bec..4a0670c056ba 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c @@ -489,10 +489,28 @@ cleanup: bpf_link__destroy(link); } +static int verify_tracing_link_info(int fd, u64 cookie) +{ + struct bpf_link_info info; + int err; + u32 len = sizeof(info); + + err = bpf_link_get_info_by_fd(fd, &info, &len); + if (!ASSERT_OK(err, "get_link_info")) + return -1; + + if (!ASSERT_EQ(info.type, BPF_LINK_TYPE_TRACING, "link_type")) + return -1; + + ASSERT_EQ(info.tracing.cookie, cookie, "tracing_cookie"); + + return 0; +} + static void tracing_subtest(struct test_bpf_cookie *skel) { __u64 cookie; - int prog_fd; + int prog_fd, err; int fentry_fd = -1, fexit_fd = -1, fmod_ret_fd = -1; LIBBPF_OPTS(bpf_test_run_opts, opts); LIBBPF_OPTS(bpf_link_create_opts, link_opts); @@ -507,6 +525,10 @@ static void tracing_subtest(struct test_bpf_cookie *skel) if (!ASSERT_GE(fentry_fd, 0, "fentry.link_create")) goto cleanup; + err = verify_tracing_link_info(fentry_fd, cookie); + if (!ASSERT_OK(err, "verify_tracing_link_info")) + goto cleanup; + cookie = 0x20000000000000L; prog_fd = bpf_program__fd(skel->progs.fexit_test1); link_opts.tracing.cookie = cookie; |