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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | // SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2021. Huawei Technologies Co., Ltd */ #include <test_progs.h> #include "dummy_st_ops_success.skel.h" #include "dummy_st_ops_fail.skel.h" #include "trace_dummy_st_ops.skel.h" /* Need to keep consistent with definition in include/linux/bpf.h */ struct bpf_dummy_ops_state { int val; }; static void test_dummy_st_ops_attach(void) { struct dummy_st_ops_success *skel; struct bpf_link *link; skel = dummy_st_ops_success__open_and_load(); if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load")) return; link = bpf_map__attach_struct_ops(skel->maps.dummy_1); ASSERT_EQ(libbpf_get_error(link), -EOPNOTSUPP, "dummy_st_ops_attach"); dummy_st_ops_success__destroy(skel); } static void test_dummy_init_ret_value(void) { __u64 args[1] = {0}; LIBBPF_OPTS(bpf_test_run_opts, attr, .ctx_in = args, .ctx_size_in = sizeof(args), ); struct dummy_st_ops_success *skel; int fd, err; skel = dummy_st_ops_success__open_and_load(); if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load")) return; fd = bpf_program__fd(skel->progs.test_1); err = bpf_prog_test_run_opts(fd, &attr); ASSERT_OK(err, "test_run"); ASSERT_EQ(attr.retval, 0xf2f3f4f5, "test_ret"); dummy_st_ops_success__destroy(skel); } static void test_dummy_init_ptr_arg(void) { int exp_retval = 0xbeef; struct bpf_dummy_ops_state in_state = { .val = exp_retval, }; __u64 args[1] = {(unsigned long)&in_state}; LIBBPF_OPTS(bpf_test_run_opts, attr, .ctx_in = args, .ctx_size_in = sizeof(args), ); struct trace_dummy_st_ops *trace_skel; struct dummy_st_ops_success *skel; int fd, err; skel = dummy_st_ops_success__open_and_load(); if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load")) return; fd = bpf_program__fd(skel->progs.test_1); trace_skel = trace_dummy_st_ops__open(); if (!ASSERT_OK_PTR(trace_skel, "trace_dummy_st_ops__open")) goto done; err = bpf_program__set_attach_target(trace_skel->progs.fentry_test_1, fd, "test_1"); if (!ASSERT_OK(err, "set_attach_target(fentry_test_1)")) goto done; err = trace_dummy_st_ops__load(trace_skel); if (!ASSERT_OK(err, "load(trace_skel)")) goto done; err = trace_dummy_st_ops__attach(trace_skel); if (!ASSERT_OK(err, "attach(trace_skel)")) goto done; err = bpf_prog_test_run_opts(fd, &attr); ASSERT_OK(err, "test_run"); ASSERT_EQ(in_state.val, 0x5a, "test_ptr_ret"); ASSERT_EQ(attr.retval, exp_retval, "test_ret"); ASSERT_EQ(trace_skel->bss->val, exp_retval, "fentry_val"); done: dummy_st_ops_success__destroy(skel); trace_dummy_st_ops__destroy(trace_skel); } static void test_dummy_multiple_args(void) { __u64 args[5] = {0, -100, 0x8a5f, 'c', 0x1234567887654321ULL}; LIBBPF_OPTS(bpf_test_run_opts, attr, .ctx_in = args, .ctx_size_in = sizeof(args), ); struct dummy_st_ops_success *skel; int fd, err; size_t i; char name[8]; skel = dummy_st_ops_success__open_and_load(); if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load")) return; fd = bpf_program__fd(skel->progs.test_2); err = bpf_prog_test_run_opts(fd, &attr); ASSERT_OK(err, "test_run"); for (i = 0; i < ARRAY_SIZE(args); i++) { snprintf(name, sizeof(name), "arg %zu", i); ASSERT_EQ(skel->bss->test_2_args[i], args[i], name); } dummy_st_ops_success__destroy(skel); } static void test_dummy_sleepable(void) { __u64 args[1] = {0}; LIBBPF_OPTS(bpf_test_run_opts, attr, .ctx_in = args, .ctx_size_in = sizeof(args), ); struct dummy_st_ops_success *skel; int fd, err; skel = dummy_st_ops_success__open_and_load(); if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load")) return; fd = bpf_program__fd(skel->progs.test_sleepable); err = bpf_prog_test_run_opts(fd, &attr); ASSERT_OK(err, "test_run"); dummy_st_ops_success__destroy(skel); } void test_dummy_st_ops(void) { if (test__start_subtest("dummy_st_ops_attach")) test_dummy_st_ops_attach(); if (test__start_subtest("dummy_init_ret_value")) test_dummy_init_ret_value(); if (test__start_subtest("dummy_init_ptr_arg")) test_dummy_init_ptr_arg(); if (test__start_subtest("dummy_multiple_args")) test_dummy_multiple_args(); if (test__start_subtest("dummy_sleepable")) test_dummy_sleepable(); RUN_TESTS(dummy_st_ops_fail); } |