1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
3 
4 #include <test_progs.h>
5 #include "cpumask_failure.skel.h"
6 #include "cpumask_success.skel.h"
7 
8 static const char * const cpumask_success_testcases[] = {
9 	"test_alloc_free_cpumask",
10 	"test_set_clear_cpu",
11 	"test_setall_clear_cpu",
12 	"test_first_firstzero_cpu",
13 	"test_test_and_set_clear",
14 	"test_and_or_xor",
15 	"test_intersects_subset",
16 	"test_copy_any_anyand",
17 	"test_insert_leave",
18 	"test_insert_remove_release",
19 	"test_global_mask_rcu",
20 };
21 
22 static void verify_success(const char *prog_name)
23 {
24 	struct cpumask_success *skel;
25 	struct bpf_program *prog;
26 	struct bpf_link *link = NULL;
27 	pid_t child_pid;
28 	int status;
29 
30 	skel = cpumask_success__open();
31 	if (!ASSERT_OK_PTR(skel, "cpumask_success__open"))
32 		return;
33 
34 	skel->bss->pid = getpid();
35 	skel->bss->nr_cpus = libbpf_num_possible_cpus();
36 
37 	cpumask_success__load(skel);
38 	if (!ASSERT_OK_PTR(skel, "cpumask_success__load"))
39 		goto cleanup;
40 
41 	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
42 	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
43 		goto cleanup;
44 
45 	link = bpf_program__attach(prog);
46 	if (!ASSERT_OK_PTR(link, "bpf_program__attach"))
47 		goto cleanup;
48 
49 	child_pid = fork();
50 	if (!ASSERT_GT(child_pid, -1, "child_pid"))
51 		goto cleanup;
52 	if (child_pid == 0)
53 		_exit(0);
54 	waitpid(child_pid, &status, 0);
55 	ASSERT_OK(skel->bss->err, "post_wait_err");
56 
57 cleanup:
58 	bpf_link__destroy(link);
59 	cpumask_success__destroy(skel);
60 }
61 
62 void test_cpumask(void)
63 {
64 	int i;
65 
66 	for (i = 0; i < ARRAY_SIZE(cpumask_success_testcases); i++) {
67 		if (!test__start_subtest(cpumask_success_testcases[i]))
68 			continue;
69 
70 		verify_success(cpumask_success_testcases[i]);
71 	}
72 
73 	RUN_TESTS(cpumask_failure);
74 }
75