1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2022 Facebook
5 * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
10 #include <test_progs.h>
11 #include "test_kfunc_dynptr_param.skel.h"
14 const char *prog_name;
15 int expected_runtime_err;
16 } kfunc_dynptr_tests[] = {
17 {"dynptr_data_null", -EBADMSG},
20 static bool kfunc_not_supported;
22 static int libbpf_print_cb(enum libbpf_print_level level, const char *fmt,
25 if (strcmp(fmt, "libbpf: extern (func ksym) '%s': not found in kernel or module BTFs\n"))
28 if (strcmp(va_arg(args, char *), "bpf_verify_pkcs7_signature"))
31 kfunc_not_supported = true;
35 static bool has_pkcs7_kfunc_support(void)
37 struct test_kfunc_dynptr_param *skel;
38 libbpf_print_fn_t old_print_cb;
41 skel = test_kfunc_dynptr_param__open();
42 if (!ASSERT_OK_PTR(skel, "test_kfunc_dynptr_param__open"))
45 kfunc_not_supported = false;
47 old_print_cb = libbpf_set_print(libbpf_print_cb);
48 err = test_kfunc_dynptr_param__load(skel);
49 libbpf_set_print(old_print_cb);
51 if (err < 0 && kfunc_not_supported) {
53 "%s:SKIP:bpf_verify_pkcs7_signature() kfunc not supported\n",
55 test_kfunc_dynptr_param__destroy(skel);
59 test_kfunc_dynptr_param__destroy(skel);
64 static void verify_success(const char *prog_name, int expected_runtime_err)
66 struct test_kfunc_dynptr_param *skel;
67 struct bpf_program *prog;
68 struct bpf_link *link;
72 skel = test_kfunc_dynptr_param__open();
73 if (!ASSERT_OK_PTR(skel, "test_kfunc_dynptr_param__open"))
76 skel->bss->pid = getpid();
78 err = test_kfunc_dynptr_param__load(skel);
80 if (!ASSERT_OK(err, "test_kfunc_dynptr_param__load"))
83 prog = bpf_object__find_program_by_name(skel->obj, prog_name);
84 if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
87 link = bpf_program__attach(prog);
88 if (!ASSERT_OK_PTR(link, "bpf_program__attach"))
91 err = bpf_prog_get_next_id(0, &next_id);
93 bpf_link__destroy(link);
95 if (!ASSERT_OK(err, "bpf_prog_get_next_id"))
98 ASSERT_EQ(skel->bss->err, expected_runtime_err, "err");
101 test_kfunc_dynptr_param__destroy(skel);
104 void test_kfunc_dynptr_param(void)
108 if (!has_pkcs7_kfunc_support())
111 for (i = 0; i < ARRAY_SIZE(kfunc_dynptr_tests); i++) {
112 if (!test__start_subtest(kfunc_dynptr_tests[i].prog_name))
115 verify_success(kfunc_dynptr_tests[i].prog_name,
116 kfunc_dynptr_tests[i].expected_runtime_err);
118 RUN_TESTS(test_kfunc_dynptr_param);