reference_tracking.c (1617B)
1// SPDX-License-Identifier: GPL-2.0 2#include <test_progs.h> 3 4void test_reference_tracking(void) 5{ 6 const char *file = "test_sk_lookup_kern.o"; 7 const char *obj_name = "ref_track"; 8 DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts, 9 .object_name = obj_name, 10 .relaxed_maps = true, 11 ); 12 struct bpf_object *obj_iter, *obj = NULL; 13 struct bpf_program *prog; 14 __u32 duration = 0; 15 int err = 0; 16 17 obj_iter = bpf_object__open_file(file, &open_opts); 18 if (!ASSERT_OK_PTR(obj_iter, "obj_iter_open_file")) 19 return; 20 21 if (CHECK(strcmp(bpf_object__name(obj_iter), obj_name), "obj_name", 22 "wrong obj name '%s', expected '%s'\n", 23 bpf_object__name(obj_iter), obj_name)) 24 goto cleanup; 25 26 bpf_object__for_each_program(prog, obj_iter) { 27 struct bpf_program *p; 28 const char *name; 29 30 name = bpf_program__name(prog); 31 if (!test__start_subtest(name)) 32 continue; 33 34 obj = bpf_object__open_file(file, &open_opts); 35 if (!ASSERT_OK_PTR(obj, "obj_open_file")) 36 goto cleanup; 37 38 /* all programs are not loaded by default, so just set 39 * autoload to true for the single prog under test 40 */ 41 p = bpf_object__find_program_by_name(obj, name); 42 bpf_program__set_autoload(p, true); 43 44 /* Expect verifier failure if test name has 'err' */ 45 if (strncmp(name, "err_", sizeof("err_") - 1) == 0) { 46 libbpf_print_fn_t old_print_fn; 47 48 old_print_fn = libbpf_set_print(NULL); 49 err = !bpf_object__load(obj); 50 libbpf_set_print(old_print_fn); 51 } else { 52 err = bpf_object__load(obj); 53 } 54 ASSERT_OK(err, name); 55 56 bpf_object__close(obj); 57 obj = NULL; 58 } 59 60cleanup: 61 bpf_object__close(obj); 62 bpf_object__close(obj_iter); 63}