1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2021 Facebook */
3 #include <test_progs.h>
4 #include "syscall.skel.h"
5
6 struct 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
15 static 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");
47 cleanup:
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
57 static 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");
71 cleanup:
72 syscall__destroy(skel);
73 }
74
75 void 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 }
82
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