1d6f39601SAlexei Starovoitov // SPDX-License-Identifier: GPL-2.0 2d6f39601SAlexei Starovoitov /* Copyright (c) 2019 Facebook */ 3d6f39601SAlexei Starovoitov #include <test_progs.h> 4488a23b8SStanislav Fomichev #include <network_helpers.h> 5f6429476SToke Høiland-Jørgensen #include <bpf/btf.h> 6f6429476SToke Høiland-Jørgensen 7f6429476SToke Høiland-Jørgensen typedef int (*test_cb)(struct bpf_object *obj); 8f6429476SToke Høiland-Jørgensen 9f6429476SToke Høiland-Jørgensen static int check_data_map(struct bpf_object *obj, int prog_cnt, bool reset) 10f6429476SToke Høiland-Jørgensen { 11f6429476SToke Høiland-Jørgensen struct bpf_map *data_map = NULL, *map; 12f6429476SToke Høiland-Jørgensen __u64 *result = NULL; 13f6429476SToke Høiland-Jørgensen const int zero = 0; 14f6429476SToke Høiland-Jørgensen __u32 duration = 0; 15f6429476SToke Høiland-Jørgensen int ret = -1, i; 16f6429476SToke Høiland-Jørgensen 17f6429476SToke Høiland-Jørgensen result = malloc((prog_cnt + 32 /* spare */) * sizeof(__u64)); 18f6429476SToke Høiland-Jørgensen if (CHECK(!result, "alloc_memory", "failed to alloc memory")) 19f6429476SToke Høiland-Jørgensen return -ENOMEM; 20f6429476SToke Høiland-Jørgensen 21f6429476SToke Høiland-Jørgensen bpf_object__for_each_map(map, obj) 22f6429476SToke Høiland-Jørgensen if (bpf_map__is_internal(map)) { 23f6429476SToke Høiland-Jørgensen data_map = map; 24f6429476SToke Høiland-Jørgensen break; 25f6429476SToke Høiland-Jørgensen } 26f6429476SToke Høiland-Jørgensen if (CHECK(!data_map, "find_data_map", "data map not found\n")) 27f6429476SToke Høiland-Jørgensen goto out; 28f6429476SToke Høiland-Jørgensen 29f6429476SToke Høiland-Jørgensen ret = bpf_map_lookup_elem(bpf_map__fd(data_map), &zero, result); 30f6429476SToke Høiland-Jørgensen if (CHECK(ret, "get_result", 31f6429476SToke Høiland-Jørgensen "failed to get output data: %d\n", ret)) 32f6429476SToke Høiland-Jørgensen goto out; 33f6429476SToke Høiland-Jørgensen 34f6429476SToke Høiland-Jørgensen for (i = 0; i < prog_cnt; i++) { 35f6429476SToke Høiland-Jørgensen if (CHECK(result[i] != 1, "result", 36f6429476SToke Høiland-Jørgensen "fexit_bpf2bpf result[%d] failed err %llu\n", 37f6429476SToke Høiland-Jørgensen i, result[i])) 38f6429476SToke Høiland-Jørgensen goto out; 39f6429476SToke Høiland-Jørgensen result[i] = 0; 40f6429476SToke Høiland-Jørgensen } 41f6429476SToke Høiland-Jørgensen if (reset) { 42f6429476SToke Høiland-Jørgensen ret = bpf_map_update_elem(bpf_map__fd(data_map), &zero, result, 0); 43f6429476SToke Høiland-Jørgensen if (CHECK(ret, "reset_result", "failed to reset result\n")) 44f6429476SToke Høiland-Jørgensen goto out; 45f6429476SToke Høiland-Jørgensen } 46f6429476SToke Høiland-Jørgensen 47f6429476SToke Høiland-Jørgensen ret = 0; 48f6429476SToke Høiland-Jørgensen out: 49f6429476SToke Høiland-Jørgensen free(result); 50f6429476SToke Høiland-Jørgensen return ret; 51f6429476SToke Høiland-Jørgensen } 52d6f39601SAlexei Starovoitov 538f9081c9SYonghong Song static void test_fexit_bpf2bpf_common(const char *obj_file, 548f9081c9SYonghong Song const char *target_obj_file, 558f9081c9SYonghong Song int prog_cnt, 561d8a0af5SToke Høiland-Jørgensen const char **prog_name, 57f6429476SToke Høiland-Jørgensen bool run_prog, 58f6429476SToke Høiland-Jørgensen test_cb cb) 59d6f39601SAlexei Starovoitov { 60f6429476SToke Høiland-Jørgensen struct bpf_object *obj = NULL, *tgt_obj; 61*04fcb5f9SDelyan Kratunov __u32 tgt_prog_id, info_len; 62463c2149SToke Høiland-Jørgensen struct bpf_prog_info prog_info = {}; 6360aed220SAndrii Nakryiko struct bpf_program **prog = NULL, *p; 64f6429476SToke Høiland-Jørgensen struct bpf_link **link = NULL; 65f6429476SToke Høiland-Jørgensen int err, tgt_fd, i; 66463c2149SToke Høiland-Jørgensen struct btf *btf; 67*04fcb5f9SDelyan Kratunov LIBBPF_OPTS(bpf_test_run_opts, topts, 68*04fcb5f9SDelyan Kratunov .data_in = &pkt_v6, 69*04fcb5f9SDelyan Kratunov .data_size_in = sizeof(pkt_v6), 70*04fcb5f9SDelyan Kratunov .repeat = 1, 71*04fcb5f9SDelyan Kratunov ); 72d6f39601SAlexei Starovoitov 73cbdb1461SAndrii Nakryiko err = bpf_prog_test_load(target_obj_file, BPF_PROG_TYPE_UNSPEC, 74f6429476SToke Høiland-Jørgensen &tgt_obj, &tgt_fd); 75463c2149SToke Høiland-Jørgensen if (!ASSERT_OK(err, "tgt_prog_load")) 76d6f39601SAlexei Starovoitov return; 77d6f39601SAlexei Starovoitov 78463c2149SToke Høiland-Jørgensen info_len = sizeof(prog_info); 79463c2149SToke Høiland-Jørgensen err = bpf_obj_get_info_by_fd(tgt_fd, &prog_info, &info_len); 80463c2149SToke Høiland-Jørgensen if (!ASSERT_OK(err, "tgt_fd_get_info")) 81463c2149SToke Høiland-Jørgensen goto close_prog; 82463c2149SToke Høiland-Jørgensen 83463c2149SToke Høiland-Jørgensen tgt_prog_id = prog_info.id; 84463c2149SToke Høiland-Jørgensen btf = bpf_object__btf(tgt_obj); 85463c2149SToke Høiland-Jørgensen 868f9081c9SYonghong Song link = calloc(sizeof(struct bpf_link *), prog_cnt); 87463c2149SToke Høiland-Jørgensen if (!ASSERT_OK_PTR(link, "link_ptr")) 88463c2149SToke Høiland-Jørgensen goto close_prog; 89463c2149SToke Høiland-Jørgensen 908f9081c9SYonghong Song prog = calloc(sizeof(struct bpf_program *), prog_cnt); 91463c2149SToke Høiland-Jørgensen if (!ASSERT_OK_PTR(prog, "prog_ptr")) 928f9081c9SYonghong Song goto close_prog; 938f9081c9SYonghong Song 9460aed220SAndrii Nakryiko obj = bpf_object__open_file(obj_file, NULL); 95463c2149SToke Høiland-Jørgensen if (!ASSERT_OK_PTR(obj, "obj_open")) 96d6f39601SAlexei Starovoitov goto close_prog; 97d6f39601SAlexei Starovoitov 9860aed220SAndrii Nakryiko bpf_object__for_each_program(p, obj) { 9960aed220SAndrii Nakryiko err = bpf_program__set_attach_target(p, tgt_fd, NULL); 10060aed220SAndrii Nakryiko ASSERT_OK(err, "set_attach_target"); 10160aed220SAndrii Nakryiko } 10260aed220SAndrii Nakryiko 103d6f39601SAlexei Starovoitov err = bpf_object__load(obj); 104463c2149SToke Høiland-Jørgensen if (!ASSERT_OK(err, "obj_load")) 105d6f39601SAlexei Starovoitov goto close_prog; 106d6f39601SAlexei Starovoitov 1078f9081c9SYonghong Song for (i = 0; i < prog_cnt; i++) { 108463c2149SToke Høiland-Jørgensen struct bpf_link_info link_info; 109a393ea80SKui-Feng Lee struct bpf_program *pos; 110a393ea80SKui-Feng Lee const char *pos_sec_name; 111463c2149SToke Høiland-Jørgensen char *tgt_name; 112463c2149SToke Høiland-Jørgensen __s32 btf_id; 113463c2149SToke Høiland-Jørgensen 114463c2149SToke Høiland-Jørgensen tgt_name = strstr(prog_name[i], "/"); 115463c2149SToke Høiland-Jørgensen if (!ASSERT_OK_PTR(tgt_name, "tgt_name")) 116463c2149SToke Høiland-Jørgensen goto close_prog; 117463c2149SToke Høiland-Jørgensen btf_id = btf__find_by_name_kind(btf, tgt_name + 1, BTF_KIND_FUNC); 118463c2149SToke Høiland-Jørgensen 119a393ea80SKui-Feng Lee prog[i] = NULL; 120a393ea80SKui-Feng Lee bpf_object__for_each_program(pos, obj) { 121a393ea80SKui-Feng Lee pos_sec_name = bpf_program__section_name(pos); 122a393ea80SKui-Feng Lee if (pos_sec_name && !strcmp(pos_sec_name, prog_name[i])) { 123a393ea80SKui-Feng Lee prog[i] = pos; 124a393ea80SKui-Feng Lee break; 125a393ea80SKui-Feng Lee } 126a393ea80SKui-Feng Lee } 127463c2149SToke Høiland-Jørgensen if (!ASSERT_OK_PTR(prog[i], prog_name[i])) 128d6f39601SAlexei Starovoitov goto close_prog; 129463c2149SToke Høiland-Jørgensen 130d6f39601SAlexei Starovoitov link[i] = bpf_program__attach_trace(prog[i]); 131463c2149SToke Høiland-Jørgensen if (!ASSERT_OK_PTR(link[i], "attach_trace")) 132d6f39601SAlexei Starovoitov goto close_prog; 133463c2149SToke Høiland-Jørgensen 134463c2149SToke Høiland-Jørgensen info_len = sizeof(link_info); 135463c2149SToke Høiland-Jørgensen memset(&link_info, 0, sizeof(link_info)); 136463c2149SToke Høiland-Jørgensen err = bpf_obj_get_info_by_fd(bpf_link__fd(link[i]), 137463c2149SToke Høiland-Jørgensen &link_info, &info_len); 138463c2149SToke Høiland-Jørgensen ASSERT_OK(err, "link_fd_get_info"); 139463c2149SToke Høiland-Jørgensen ASSERT_EQ(link_info.tracing.attach_type, 140379d19ecSAndrii Nakryiko bpf_program__expected_attach_type(prog[i]), 141463c2149SToke Høiland-Jørgensen "link_attach_type"); 142463c2149SToke Høiland-Jørgensen ASSERT_EQ(link_info.tracing.target_obj_id, tgt_prog_id, "link_tgt_obj_id"); 143463c2149SToke Høiland-Jørgensen ASSERT_EQ(link_info.tracing.target_btf_id, btf_id, "link_tgt_btf_id"); 144d6f39601SAlexei Starovoitov } 1451d8a0af5SToke Høiland-Jørgensen 146f6429476SToke Høiland-Jørgensen if (cb) { 147f6429476SToke Høiland-Jørgensen err = cb(obj); 148f6429476SToke Høiland-Jørgensen if (err) 149f6429476SToke Høiland-Jørgensen goto close_prog; 150f6429476SToke Høiland-Jørgensen } 151f6429476SToke Høiland-Jørgensen 1521d8a0af5SToke Høiland-Jørgensen if (!run_prog) 1531d8a0af5SToke Høiland-Jørgensen goto close_prog; 1541d8a0af5SToke Høiland-Jørgensen 155*04fcb5f9SDelyan Kratunov err = bpf_prog_test_run_opts(tgt_fd, &topts); 156463c2149SToke Høiland-Jørgensen ASSERT_OK(err, "prog_run"); 157*04fcb5f9SDelyan Kratunov ASSERT_EQ(topts.retval, 0, "prog_run_ret"); 158d6f39601SAlexei Starovoitov 159f6429476SToke Høiland-Jørgensen if (check_data_map(obj, prog_cnt, false)) 160d6f39601SAlexei Starovoitov goto close_prog; 161d6f39601SAlexei Starovoitov 162d6f39601SAlexei Starovoitov close_prog: 1638f9081c9SYonghong Song for (i = 0; i < prog_cnt; i++) 164d6f39601SAlexei Starovoitov bpf_link__destroy(link[i]); 165d6f39601SAlexei Starovoitov bpf_object__close(obj); 166f6429476SToke Høiland-Jørgensen bpf_object__close(tgt_obj); 1678f9081c9SYonghong Song free(link); 1688f9081c9SYonghong Song free(prog); 1698f9081c9SYonghong Song } 1708f9081c9SYonghong Song 1718f9081c9SYonghong Song static void test_target_no_callees(void) 1728f9081c9SYonghong Song { 1738f9081c9SYonghong Song const char *prog_name[] = { 1748f9081c9SYonghong Song "fexit/test_pkt_md_access", 1758f9081c9SYonghong Song }; 1768f9081c9SYonghong Song test_fexit_bpf2bpf_common("./fexit_bpf2bpf_simple.o", 1778f9081c9SYonghong Song "./test_pkt_md_access.o", 1788f9081c9SYonghong Song ARRAY_SIZE(prog_name), 179f6429476SToke Høiland-Jørgensen prog_name, true, NULL); 1808f9081c9SYonghong Song } 1818f9081c9SYonghong Song 1828f9081c9SYonghong Song static void test_target_yes_callees(void) 1838f9081c9SYonghong Song { 1848f9081c9SYonghong Song const char *prog_name[] = { 1858f9081c9SYonghong Song "fexit/test_pkt_access", 1868f9081c9SYonghong Song "fexit/test_pkt_access_subprog1", 1878f9081c9SYonghong Song "fexit/test_pkt_access_subprog2", 1887608e4dbSAlexei Starovoitov "fexit/test_pkt_access_subprog3", 1898f9081c9SYonghong Song }; 1908f9081c9SYonghong Song test_fexit_bpf2bpf_common("./fexit_bpf2bpf.o", 1918f9081c9SYonghong Song "./test_pkt_access.o", 1928f9081c9SYonghong Song ARRAY_SIZE(prog_name), 193f6429476SToke Høiland-Jørgensen prog_name, true, NULL); 1948f9081c9SYonghong Song } 1958f9081c9SYonghong Song 1967805fe84SAlexei Starovoitov static void test_func_replace(void) 1977805fe84SAlexei Starovoitov { 1987805fe84SAlexei Starovoitov const char *prog_name[] = { 1997805fe84SAlexei Starovoitov "fexit/test_pkt_access", 2007805fe84SAlexei Starovoitov "fexit/test_pkt_access_subprog1", 2017805fe84SAlexei Starovoitov "fexit/test_pkt_access_subprog2", 2027805fe84SAlexei Starovoitov "fexit/test_pkt_access_subprog3", 2037805fe84SAlexei Starovoitov "freplace/get_skb_len", 2047805fe84SAlexei Starovoitov "freplace/get_skb_ifindex", 2057805fe84SAlexei Starovoitov "freplace/get_constant", 2066dc03dc7SUdip Pant "freplace/test_pkt_write_access_subprog", 2077805fe84SAlexei Starovoitov }; 2087805fe84SAlexei Starovoitov test_fexit_bpf2bpf_common("./fexit_bpf2bpf.o", 2097805fe84SAlexei Starovoitov "./test_pkt_access.o", 2107805fe84SAlexei Starovoitov ARRAY_SIZE(prog_name), 211f6429476SToke Høiland-Jørgensen prog_name, true, NULL); 2121d8a0af5SToke Høiland-Jørgensen } 2131d8a0af5SToke Høiland-Jørgensen 2141d8a0af5SToke Høiland-Jørgensen static void test_func_replace_verify(void) 2151d8a0af5SToke Høiland-Jørgensen { 2161d8a0af5SToke Høiland-Jørgensen const char *prog_name[] = { 2171d8a0af5SToke Høiland-Jørgensen "freplace/do_bind", 2181d8a0af5SToke Høiland-Jørgensen }; 2191d8a0af5SToke Høiland-Jørgensen test_fexit_bpf2bpf_common("./freplace_connect4.o", 2201d8a0af5SToke Høiland-Jørgensen "./connect4_prog.o", 2211d8a0af5SToke Høiland-Jørgensen ARRAY_SIZE(prog_name), 222f6429476SToke Høiland-Jørgensen prog_name, false, NULL); 223f6429476SToke Høiland-Jørgensen } 224f6429476SToke Høiland-Jørgensen 225f6429476SToke Høiland-Jørgensen static int test_second_attach(struct bpf_object *obj) 226f6429476SToke Høiland-Jørgensen { 227a393ea80SKui-Feng Lee const char *prog_name = "security_new_get_constant"; 228a393ea80SKui-Feng Lee const char *tgt_name = "get_constant"; 229f6429476SToke Høiland-Jørgensen const char *tgt_obj_file = "./test_pkt_access.o"; 230f6429476SToke Høiland-Jørgensen struct bpf_program *prog = NULL; 231f6429476SToke Høiland-Jørgensen struct bpf_object *tgt_obj; 232f6429476SToke Høiland-Jørgensen struct bpf_link *link; 233f6429476SToke Høiland-Jørgensen int err = 0, tgt_fd; 234*04fcb5f9SDelyan Kratunov LIBBPF_OPTS(bpf_test_run_opts, topts, 235*04fcb5f9SDelyan Kratunov .data_in = &pkt_v6, 236*04fcb5f9SDelyan Kratunov .data_size_in = sizeof(pkt_v6), 237*04fcb5f9SDelyan Kratunov .repeat = 1, 238*04fcb5f9SDelyan Kratunov ); 239f6429476SToke Høiland-Jørgensen 240a393ea80SKui-Feng Lee prog = bpf_object__find_program_by_name(obj, prog_name); 241*04fcb5f9SDelyan Kratunov if (!ASSERT_OK_PTR(prog, "find_prog")) 242f6429476SToke Høiland-Jørgensen return -ENOENT; 243f6429476SToke Høiland-Jørgensen 244cbdb1461SAndrii Nakryiko err = bpf_prog_test_load(tgt_obj_file, BPF_PROG_TYPE_UNSPEC, 245f6429476SToke Høiland-Jørgensen &tgt_obj, &tgt_fd); 246*04fcb5f9SDelyan Kratunov if (!ASSERT_OK(err, "second_prog_load")) 247f6429476SToke Høiland-Jørgensen return err; 248f6429476SToke Høiland-Jørgensen 249f6429476SToke Høiland-Jørgensen link = bpf_program__attach_freplace(prog, tgt_fd, tgt_name); 250bad2e478SAndrii Nakryiko if (!ASSERT_OK_PTR(link, "second_link")) 251f6429476SToke Høiland-Jørgensen goto out; 252f6429476SToke Høiland-Jørgensen 253*04fcb5f9SDelyan Kratunov err = bpf_prog_test_run_opts(tgt_fd, &topts); 254*04fcb5f9SDelyan Kratunov if (!ASSERT_OK(err, "ipv6 test_run")) 255*04fcb5f9SDelyan Kratunov goto out; 256*04fcb5f9SDelyan Kratunov if (!ASSERT_OK(topts.retval, "ipv6 retval")) 257f6429476SToke Høiland-Jørgensen goto out; 258f6429476SToke Høiland-Jørgensen 259f6429476SToke Høiland-Jørgensen err = check_data_map(obj, 1, true); 260f6429476SToke Høiland-Jørgensen if (err) 261f6429476SToke Høiland-Jørgensen goto out; 262f6429476SToke Høiland-Jørgensen 263f6429476SToke Høiland-Jørgensen out: 264f6429476SToke Høiland-Jørgensen bpf_link__destroy(link); 265f6429476SToke Høiland-Jørgensen bpf_object__close(tgt_obj); 266f6429476SToke Høiland-Jørgensen return err; 267f6429476SToke Høiland-Jørgensen } 268f6429476SToke Høiland-Jørgensen 269f6429476SToke Høiland-Jørgensen static void test_func_replace_multi(void) 270f6429476SToke Høiland-Jørgensen { 271f6429476SToke Høiland-Jørgensen const char *prog_name[] = { 272f6429476SToke Høiland-Jørgensen "freplace/get_constant", 273f6429476SToke Høiland-Jørgensen }; 274f6429476SToke Høiland-Jørgensen test_fexit_bpf2bpf_common("./freplace_get_constant.o", 275f6429476SToke Høiland-Jørgensen "./test_pkt_access.o", 276f6429476SToke Høiland-Jørgensen ARRAY_SIZE(prog_name), 277f6429476SToke Høiland-Jørgensen prog_name, true, test_second_attach); 2787805fe84SAlexei Starovoitov } 2797805fe84SAlexei Starovoitov 280bee4b7e6SToke Høiland-Jørgensen static void test_fmod_ret_freplace(void) 281bee4b7e6SToke Høiland-Jørgensen { 282bee4b7e6SToke Høiland-Jørgensen struct bpf_object *freplace_obj = NULL, *pkt_obj, *fmod_obj = NULL; 283bee4b7e6SToke Høiland-Jørgensen const char *freplace_name = "./freplace_get_constant.o"; 284bee4b7e6SToke Høiland-Jørgensen const char *fmod_ret_name = "./fmod_ret_freplace.o"; 285bee4b7e6SToke Høiland-Jørgensen DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts); 286bee4b7e6SToke Høiland-Jørgensen const char *tgt_name = "./test_pkt_access.o"; 287bee4b7e6SToke Høiland-Jørgensen struct bpf_link *freplace_link = NULL; 288bee4b7e6SToke Høiland-Jørgensen struct bpf_program *prog; 289bee4b7e6SToke Høiland-Jørgensen __u32 duration = 0; 29060aed220SAndrii Nakryiko int err, pkt_fd, attach_prog_fd; 291bee4b7e6SToke Høiland-Jørgensen 292cbdb1461SAndrii Nakryiko err = bpf_prog_test_load(tgt_name, BPF_PROG_TYPE_UNSPEC, 293bee4b7e6SToke Høiland-Jørgensen &pkt_obj, &pkt_fd); 294bee4b7e6SToke Høiland-Jørgensen /* the target prog should load fine */ 295bee4b7e6SToke Høiland-Jørgensen if (CHECK(err, "tgt_prog_load", "file %s err %d errno %d\n", 296bee4b7e6SToke Høiland-Jørgensen tgt_name, err, errno)) 297bee4b7e6SToke Høiland-Jørgensen return; 298bee4b7e6SToke Høiland-Jørgensen 29960aed220SAndrii Nakryiko freplace_obj = bpf_object__open_file(freplace_name, NULL); 300bad2e478SAndrii Nakryiko if (!ASSERT_OK_PTR(freplace_obj, "freplace_obj_open")) 301bee4b7e6SToke Høiland-Jørgensen goto out; 302bee4b7e6SToke Høiland-Jørgensen 3036f2b219bSHengqi Chen prog = bpf_object__next_program(freplace_obj, NULL); 30460aed220SAndrii Nakryiko err = bpf_program__set_attach_target(prog, pkt_fd, NULL); 30560aed220SAndrii Nakryiko ASSERT_OK(err, "freplace__set_attach_target"); 30660aed220SAndrii Nakryiko 307bee4b7e6SToke Høiland-Jørgensen err = bpf_object__load(freplace_obj); 308bee4b7e6SToke Høiland-Jørgensen if (CHECK(err, "freplace_obj_load", "err %d\n", err)) 309bee4b7e6SToke Høiland-Jørgensen goto out; 310bee4b7e6SToke Høiland-Jørgensen 311bee4b7e6SToke Høiland-Jørgensen freplace_link = bpf_program__attach_trace(prog); 312bad2e478SAndrii Nakryiko if (!ASSERT_OK_PTR(freplace_link, "freplace_attach_trace")) 313bee4b7e6SToke Høiland-Jørgensen goto out; 314bee4b7e6SToke Høiland-Jørgensen 31560aed220SAndrii Nakryiko fmod_obj = bpf_object__open_file(fmod_ret_name, NULL); 316bad2e478SAndrii Nakryiko if (!ASSERT_OK_PTR(fmod_obj, "fmod_obj_open")) 317bee4b7e6SToke Høiland-Jørgensen goto out; 318bee4b7e6SToke Høiland-Jørgensen 31960aed220SAndrii Nakryiko attach_prog_fd = bpf_program__fd(prog); 3206f2b219bSHengqi Chen prog = bpf_object__next_program(fmod_obj, NULL); 32160aed220SAndrii Nakryiko err = bpf_program__set_attach_target(prog, attach_prog_fd, NULL); 32260aed220SAndrii Nakryiko ASSERT_OK(err, "fmod_ret_set_attach_target"); 32360aed220SAndrii Nakryiko 324bee4b7e6SToke Høiland-Jørgensen err = bpf_object__load(fmod_obj); 325bee4b7e6SToke Høiland-Jørgensen if (CHECK(!err, "fmod_obj_load", "loading fmod_ret should fail\n")) 326bee4b7e6SToke Høiland-Jørgensen goto out; 327bee4b7e6SToke Høiland-Jørgensen 328bee4b7e6SToke Høiland-Jørgensen out: 329bee4b7e6SToke Høiland-Jørgensen bpf_link__destroy(freplace_link); 330bee4b7e6SToke Høiland-Jørgensen bpf_object__close(freplace_obj); 331bee4b7e6SToke Høiland-Jørgensen bpf_object__close(fmod_obj); 332bee4b7e6SToke Høiland-Jørgensen bpf_object__close(pkt_obj); 333bee4b7e6SToke Høiland-Jørgensen } 334bee4b7e6SToke Høiland-Jørgensen 335bee4b7e6SToke Høiland-Jørgensen 3361410620cSUdip Pant static void test_func_sockmap_update(void) 3371410620cSUdip Pant { 3381410620cSUdip Pant const char *prog_name[] = { 3391410620cSUdip Pant "freplace/cls_redirect", 3401410620cSUdip Pant }; 3411410620cSUdip Pant test_fexit_bpf2bpf_common("./freplace_cls_redirect.o", 3421410620cSUdip Pant "./test_cls_redirect.o", 3431410620cSUdip Pant ARRAY_SIZE(prog_name), 344f6429476SToke Høiland-Jørgensen prog_name, false, NULL); 3451410620cSUdip Pant } 3461410620cSUdip Pant 3471410620cSUdip Pant static void test_obj_load_failure_common(const char *obj_file, 3481410620cSUdip Pant const char *target_obj_file) 34950d19736SUdip Pant { 35050d19736SUdip Pant /* 35150d19736SUdip Pant * standalone test that asserts failure to load freplace prog 35250d19736SUdip Pant * because of invalid return code. 35350d19736SUdip Pant */ 35450d19736SUdip Pant struct bpf_object *obj = NULL, *pkt_obj; 35560aed220SAndrii Nakryiko struct bpf_program *prog; 35650d19736SUdip Pant int err, pkt_fd; 35750d19736SUdip Pant __u32 duration = 0; 35850d19736SUdip Pant 359cbdb1461SAndrii Nakryiko err = bpf_prog_test_load(target_obj_file, BPF_PROG_TYPE_UNSPEC, 36050d19736SUdip Pant &pkt_obj, &pkt_fd); 36150d19736SUdip Pant /* the target prog should load fine */ 36250d19736SUdip Pant if (CHECK(err, "tgt_prog_load", "file %s err %d errno %d\n", 36350d19736SUdip Pant target_obj_file, err, errno)) 36450d19736SUdip Pant return; 36550d19736SUdip Pant 36660aed220SAndrii Nakryiko obj = bpf_object__open_file(obj_file, NULL); 367bad2e478SAndrii Nakryiko if (!ASSERT_OK_PTR(obj, "obj_open")) 36850d19736SUdip Pant goto close_prog; 36950d19736SUdip Pant 3706f2b219bSHengqi Chen prog = bpf_object__next_program(obj, NULL); 37160aed220SAndrii Nakryiko err = bpf_program__set_attach_target(prog, pkt_fd, NULL); 37260aed220SAndrii Nakryiko ASSERT_OK(err, "set_attach_target"); 37360aed220SAndrii Nakryiko 37450d19736SUdip Pant /* It should fail to load the program */ 37550d19736SUdip Pant err = bpf_object__load(obj); 37650d19736SUdip Pant if (CHECK(!err, "bpf_obj_load should fail", "err %d\n", err)) 37750d19736SUdip Pant goto close_prog; 37850d19736SUdip Pant 37950d19736SUdip Pant close_prog: 38050d19736SUdip Pant bpf_object__close(obj); 38150d19736SUdip Pant bpf_object__close(pkt_obj); 38250d19736SUdip Pant } 38350d19736SUdip Pant 3841410620cSUdip Pant static void test_func_replace_return_code(void) 3851410620cSUdip Pant { 3861410620cSUdip Pant /* test invalid return code in the replaced program */ 3871410620cSUdip Pant test_obj_load_failure_common("./freplace_connect_v4_prog.o", 3881410620cSUdip Pant "./connect4_prog.o"); 3891410620cSUdip Pant } 3901410620cSUdip Pant 3911410620cSUdip Pant static void test_func_map_prog_compatibility(void) 3921410620cSUdip Pant { 3931410620cSUdip Pant /* test with spin lock map value in the replaced program */ 3941410620cSUdip Pant test_obj_load_failure_common("./freplace_attach_probe.o", 3951410620cSUdip Pant "./test_attach_probe.o"); 3961410620cSUdip Pant } 3971410620cSUdip Pant 398d3f7b166SYucong Sun /* NOTE: affect other tests, must run in serial mode */ 399d3f7b166SYucong Sun void serial_test_fexit_bpf2bpf(void) 4008f9081c9SYonghong Song { 401d86687aeSAndrii Nakryiko if (test__start_subtest("target_no_callees")) 4028f9081c9SYonghong Song test_target_no_callees(); 403d86687aeSAndrii Nakryiko if (test__start_subtest("target_yes_callees")) 4048f9081c9SYonghong Song test_target_yes_callees(); 405d86687aeSAndrii Nakryiko if (test__start_subtest("func_replace")) 4067805fe84SAlexei Starovoitov test_func_replace(); 407d86687aeSAndrii Nakryiko if (test__start_subtest("func_replace_verify")) 4081d8a0af5SToke Høiland-Jørgensen test_func_replace_verify(); 409d86687aeSAndrii Nakryiko if (test__start_subtest("func_sockmap_update")) 4101410620cSUdip Pant test_func_sockmap_update(); 411d86687aeSAndrii Nakryiko if (test__start_subtest("func_replace_return_code")) 41250d19736SUdip Pant test_func_replace_return_code(); 413d86687aeSAndrii Nakryiko if (test__start_subtest("func_map_prog_compatibility")) 4141410620cSUdip Pant test_func_map_prog_compatibility(); 415f6429476SToke Høiland-Jørgensen if (test__start_subtest("func_replace_multi")) 416f6429476SToke Høiland-Jørgensen test_func_replace_multi(); 417bee4b7e6SToke Høiland-Jørgensen if (test__start_subtest("fmod_ret_freplace")) 418bee4b7e6SToke Høiland-Jørgensen test_fmod_ret_freplace(); 419d6f39601SAlexei Starovoitov } 420