diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c index 8ec73fdfcdab..f29fc789c14b 100644 --- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c +++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c @@ -348,7 +348,8 @@ static void test_func_sockmap_update(void) } static void test_obj_load_failure_common(const char *obj_file, - const char *target_obj_file) + const char *target_obj_file, + const char *exp_msg) { /* * standalone test that asserts failure to load freplace prog @@ -356,6 +357,7 @@ static void test_obj_load_failure_common(const char *obj_file, */ struct bpf_object *obj = NULL, *pkt_obj; struct bpf_program *prog; + char log_buf[64 * 1024]; int err, pkt_fd; __u32 duration = 0; @@ -374,11 +376,21 @@ static void test_obj_load_failure_common(const char *obj_file, err = bpf_program__set_attach_target(prog, pkt_fd, NULL); ASSERT_OK(err, "set_attach_target"); + log_buf[0] = '\0'; + if (exp_msg) + bpf_program__set_log_buf(prog, log_buf, sizeof(log_buf)); + if (env.verbosity > VERBOSE_NONE) + bpf_program__set_log_level(prog, 2); + /* It should fail to load the program */ err = bpf_object__load(obj); + if (env.verbosity > VERBOSE_NONE && exp_msg) /* we overtook log */ + printf("VERIFIER LOG:\n================\n%s\n================\n", log_buf); if (CHECK(!err, "bpf_obj_load should fail", "err %d\n", err)) goto close_prog; + if (exp_msg) + ASSERT_HAS_SUBSTR(log_buf, exp_msg, "fail_msg"); close_prog: bpf_object__close(obj); bpf_object__close(pkt_obj); @@ -388,14 +400,24 @@ static void test_func_replace_return_code(void) { /* test invalid return code in the replaced program */ test_obj_load_failure_common("./freplace_connect_v4_prog.bpf.o", - "./connect4_prog.bpf.o"); + "./connect4_prog.bpf.o", NULL); } static void test_func_map_prog_compatibility(void) { /* test with spin lock map value in the replaced program */ test_obj_load_failure_common("./freplace_attach_probe.bpf.o", - "./test_attach_probe.bpf.o"); + "./test_attach_probe.bpf.o", NULL); +} + +static void test_func_replace_unreliable(void) +{ + /* freplace'ing unreliable main prog should fail with error + * "Cannot replace static functions" + */ + test_obj_load_failure_common("freplace_unreliable_prog.bpf.o", + "./verifier_btf_unreliable_prog.bpf.o", + "Cannot replace static functions"); } static void test_func_replace_global_func(void) @@ -563,6 +585,8 @@ void serial_test_fexit_bpf2bpf(void) test_func_replace_return_code(); if (test__start_subtest("func_map_prog_compatibility")) test_func_map_prog_compatibility(); + if (test__start_subtest("func_replace_unreliable")) + test_func_replace_unreliable(); if (test__start_subtest("func_replace_multi")) test_func_replace_multi(); if (test__start_subtest("fmod_ret_freplace")) |