xref: /linux/tools/testing/selftests/bpf/prog_tests/kfunc_call.c (revision 0e862838f290147ea9c16db852d8d494b552d38d)
1  // SPDX-License-Identifier: GPL-2.0
2  /* Copyright (c) 2021 Facebook */
3  #include <test_progs.h>
4  #include <network_helpers.h>
5  #include "kfunc_call_test.lskel.h"
6  #include "kfunc_call_test_subprog.skel.h"
7  #include "kfunc_call_test_subprog.lskel.h"
8  
9  static void test_main(void)
10  {
11  	struct kfunc_call_test_lskel *skel;
12  	int prog_fd, err;
13  	LIBBPF_OPTS(bpf_test_run_opts, topts,
14  		.data_in = &pkt_v4,
15  		.data_size_in = sizeof(pkt_v4),
16  		.repeat = 1,
17  	);
18  
19  	skel = kfunc_call_test_lskel__open_and_load();
20  	if (!ASSERT_OK_PTR(skel, "skel"))
21  		return;
22  
23  	prog_fd = skel->progs.kfunc_call_test1.prog_fd;
24  	err = bpf_prog_test_run_opts(prog_fd, &topts);
25  	ASSERT_OK(err, "bpf_prog_test_run(test1)");
26  	ASSERT_EQ(topts.retval, 12, "test1-retval");
27  
28  	prog_fd = skel->progs.kfunc_call_test2.prog_fd;
29  	err = bpf_prog_test_run_opts(prog_fd, &topts);
30  	ASSERT_OK(err, "bpf_prog_test_run(test2)");
31  	ASSERT_EQ(topts.retval, 3, "test2-retval");
32  
33  	prog_fd = skel->progs.kfunc_call_test_ref_btf_id.prog_fd;
34  	err = bpf_prog_test_run_opts(prog_fd, &topts);
35  	ASSERT_OK(err, "bpf_prog_test_run(test_ref_btf_id)");
36  	ASSERT_EQ(topts.retval, 0, "test_ref_btf_id-retval");
37  
38  	kfunc_call_test_lskel__destroy(skel);
39  }
40  
41  static void test_subprog(void)
42  {
43  	struct kfunc_call_test_subprog *skel;
44  	int prog_fd, err;
45  	LIBBPF_OPTS(bpf_test_run_opts, topts,
46  		.data_in = &pkt_v4,
47  		.data_size_in = sizeof(pkt_v4),
48  		.repeat = 1,
49  	);
50  
51  	skel = kfunc_call_test_subprog__open_and_load();
52  	if (!ASSERT_OK_PTR(skel, "skel"))
53  		return;
54  
55  	prog_fd = bpf_program__fd(skel->progs.kfunc_call_test1);
56  	err = bpf_prog_test_run_opts(prog_fd, &topts);
57  	ASSERT_OK(err, "bpf_prog_test_run(test1)");
58  	ASSERT_EQ(topts.retval, 10, "test1-retval");
59  	ASSERT_NEQ(skel->data->active_res, -1, "active_res");
60  	ASSERT_EQ(skel->data->sk_state_res, BPF_TCP_CLOSE, "sk_state_res");
61  
62  	kfunc_call_test_subprog__destroy(skel);
63  }
64  
65  static void test_subprog_lskel(void)
66  {
67  	struct kfunc_call_test_subprog_lskel *skel;
68  	int prog_fd, err;
69  	LIBBPF_OPTS(bpf_test_run_opts, topts,
70  		.data_in = &pkt_v4,
71  		.data_size_in = sizeof(pkt_v4),
72  		.repeat = 1,
73  	);
74  
75  	skel = kfunc_call_test_subprog_lskel__open_and_load();
76  	if (!ASSERT_OK_PTR(skel, "skel"))
77  		return;
78  
79  	prog_fd = skel->progs.kfunc_call_test1.prog_fd;
80  	err = bpf_prog_test_run_opts(prog_fd, &topts);
81  	ASSERT_OK(err, "bpf_prog_test_run(test1)");
82  	ASSERT_EQ(topts.retval, 10, "test1-retval");
83  	ASSERT_NEQ(skel->data->active_res, -1, "active_res");
84  	ASSERT_EQ(skel->data->sk_state_res, BPF_TCP_CLOSE, "sk_state_res");
85  
86  	kfunc_call_test_subprog_lskel__destroy(skel);
87  }
88  
89  void test_kfunc_call(void)
90  {
91  	if (test__start_subtest("main"))
92  		test_main();
93  
94  	if (test__start_subtest("subprog"))
95  		test_subprog();
96  
97  	if (test__start_subtest("subprog_lskel"))
98  		test_subprog_lskel();
99  }
100