1 // SPDX-License-Identifier: GPL-2.0 2 #include <test_progs.h> 3 4 static void toggle_object_autoload_progs(const struct bpf_object *obj, 5 const char *name_load) 6 { 7 struct bpf_program *prog; 8 9 bpf_object__for_each_program(prog, obj) { 10 const char *name = bpf_program__name(prog); 11 12 if (!strcmp(name_load, name)) 13 bpf_program__set_autoload(prog, true); 14 else 15 bpf_program__set_autoload(prog, false); 16 } 17 } 18 19 void test_reference_tracking(void) 20 { 21 const char *file = "test_sk_lookup_kern.o"; 22 const char *obj_name = "ref_track"; 23 DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts, 24 .object_name = obj_name, 25 .relaxed_maps = true, 26 ); 27 struct bpf_object *obj_iter, *obj = NULL; 28 struct bpf_program *prog; 29 __u32 duration = 0; 30 int err = 0; 31 32 obj_iter = bpf_object__open_file(file, &open_opts); 33 if (!ASSERT_OK_PTR(obj_iter, "obj_iter_open_file")) 34 return; 35 36 if (CHECK(strcmp(bpf_object__name(obj_iter), obj_name), "obj_name", 37 "wrong obj name '%s', expected '%s'\n", 38 bpf_object__name(obj_iter), obj_name)) 39 goto cleanup; 40 41 bpf_object__for_each_program(prog, obj_iter) { 42 const char *name; 43 44 name = bpf_program__name(prog); 45 if (!test__start_subtest(name)) 46 continue; 47 48 obj = bpf_object__open_file(file, &open_opts); 49 if (!ASSERT_OK_PTR(obj, "obj_open_file")) 50 goto cleanup; 51 52 toggle_object_autoload_progs(obj, name); 53 /* Expect verifier failure if test name has 'err' */ 54 if (strncmp(name, "err_", sizeof("err_") - 1) == 0) { 55 libbpf_print_fn_t old_print_fn; 56 57 old_print_fn = libbpf_set_print(NULL); 58 err = !bpf_object__load(obj); 59 libbpf_set_print(old_print_fn); 60 } else { 61 err = bpf_object__load(obj); 62 } 63 ASSERT_OK(err, name); 64 65 bpf_object__close(obj); 66 obj = NULL; 67 } 68 69 cleanup: 70 bpf_object__close(obj); 71 bpf_object__close(obj_iter); 72 } 73