1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2021 Facebook */
 3#include <test_progs.h>
 4#include "syscall.skel.h"
 5
 6struct args {
 7	__u64 log_buf;
 8	__u32 log_size;
 9	int max_entries;
10	int map_fd;
11	int prog_fd;
12	int btf_fd;
13};
14
15static void test_syscall_load_prog(void)
16{
17	static char verifier_log[8192];
18	struct args ctx = {
19		.max_entries = 1024,
20		.log_buf = (uintptr_t) verifier_log,
21		.log_size = sizeof(verifier_log),
22	};
23	LIBBPF_OPTS(bpf_test_run_opts, tattr,
24		.ctx_in = &ctx,
25		.ctx_size_in = sizeof(ctx),
26	);
27	struct syscall *skel = NULL;
28	__u64 key = 12, value = 0;
29	int err, prog_fd;
30
31	skel = syscall__open_and_load();
32	if (!ASSERT_OK_PTR(skel, "skel_load"))
33		goto cleanup;
34
35	prog_fd = bpf_program__fd(skel->progs.load_prog);
36	err = bpf_prog_test_run_opts(prog_fd, &tattr);
37	ASSERT_EQ(err, 0, "err");
38	ASSERT_EQ(tattr.retval, 1, "retval");
39	ASSERT_GT(ctx.map_fd, 0, "ctx.map_fd");
40	ASSERT_GT(ctx.prog_fd, 0, "ctx.prog_fd");
41	ASSERT_OK(memcmp(verifier_log, "processed", sizeof("processed") - 1),
42		  "verifier_log");
43
44	err = bpf_map_lookup_elem(ctx.map_fd, &key, &value);
45	ASSERT_EQ(err, 0, "map_lookup");
46	ASSERT_EQ(value, 34, "map lookup value");
47cleanup:
48	syscall__destroy(skel);
49	if (ctx.prog_fd > 0)
50		close(ctx.prog_fd);
51	if (ctx.map_fd > 0)
52		close(ctx.map_fd);
53	if (ctx.btf_fd > 0)
54		close(ctx.btf_fd);
55}
56
57static void test_syscall_update_outer_map(void)
58{
59	LIBBPF_OPTS(bpf_test_run_opts, opts);
60	struct syscall *skel;
61	int err, prog_fd;
62
63	skel = syscall__open_and_load();
64	if (!ASSERT_OK_PTR(skel, "skel_load"))
65		goto cleanup;
66
67	prog_fd = bpf_program__fd(skel->progs.update_outer_map);
68	err = bpf_prog_test_run_opts(prog_fd, &opts);
69	ASSERT_EQ(err, 0, "err");
70	ASSERT_EQ(opts.retval, 1, "retval");
71cleanup:
72	syscall__destroy(skel);
73}
74
75void test_syscall(void)
76{
77	if (test__start_subtest("load_prog"))
78		test_syscall_load_prog();
79	if (test__start_subtest("update_outer_map"))
80		test_syscall_update_outer_map();
81}