1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3
4 /* TODO: corrupts other tests uses connect() */
5 void serial_test_probe_user(void)
6 {
7 static const char *const prog_names[] = {
8 "handle_sys_connect",
9 #if defined(__s390x__)
10 "handle_sys_socketcall",
11 #endif
12 };
13 enum { prog_count = ARRAY_SIZE(prog_names) };
14 const char *obj_file = "./test_probe_user.bpf.o";
15 DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts, );
16 int err, results_map_fd, sock_fd, duration = 0;
17 struct sockaddr curr, orig, tmp;
18 struct sockaddr_in *in = (struct sockaddr_in *)&curr;
19 struct bpf_link *kprobe_links[prog_count] = {};
20 struct bpf_program *kprobe_progs[prog_count];
21 struct bpf_object *obj;
22 static const int zero = 0;
23 size_t i;
24
25 obj = bpf_object__open_file(obj_file, &opts);
26 if (!ASSERT_OK_PTR(obj, "obj_open_file"))
27 return;
28
29 for (i = 0; i < prog_count; i++) {
30 kprobe_progs[i] =
31 bpf_object__find_program_by_name(obj, prog_names[i]);
32 if (CHECK(!kprobe_progs[i], "find_probe",
33 "prog '%s' not found\n", prog_names[i]))
34 goto cleanup;
35 }
36
37 err = bpf_object__load(obj);
38 if (CHECK(err, "obj_load", "err %d\n", err))
39 goto cleanup;
40
41 results_map_fd = bpf_find_map(__func__, obj, "test_pro.bss");
42 if (CHECK(results_map_fd < 0, "find_bss_map",
43 "err %d\n", results_map_fd))
44 goto cleanup;
45
46 for (i = 0; i < prog_count; i++) {
47 kprobe_links[i] = bpf_program__attach(kprobe_progs[i]);
48 if (!ASSERT_OK_PTR(kprobe_links[i], "attach_kprobe"))
49 goto cleanup;
50 }
51
52 memset(&curr, 0, sizeof(curr));
53 in->sin_family = AF_INET;
54 in->sin_port = htons(5555);
55 in->sin_addr.s_addr = inet_addr("255.255.255.255");
56 memcpy(&orig, &curr, sizeof(curr));
57
58 sock_fd = socket(AF_INET, SOCK_STREAM, 0);
59 if (CHECK(sock_fd < 0, "create_sock_fd", "err %d\n", sock_fd))
60 goto cleanup;
61
62 connect(sock_fd, &curr, sizeof(curr));
63 close(sock_fd);
64
65 err = bpf_map_lookup_elem(results_map_fd, &zero, &tmp);
66 if (CHECK(err, "get_kprobe_res",
67 "failed to get kprobe res: %d\n", err))
68 goto cleanup;
69
70 in = (struct sockaddr_in *)&tmp;
71 if (CHECK(memcmp(&tmp, &orig, sizeof(orig)), "check_kprobe_res",
72 "wrong kprobe res from probe read: %s:%u\n",
73 inet_ntoa(in->sin_addr), ntohs(in->sin_port)))
74 goto cleanup;
75
76 memset(&tmp, 0xab, sizeof(tmp));
77
78 in = (struct sockaddr_in *)&curr;
79 if (CHECK(memcmp(&curr, &tmp, sizeof(tmp)), "check_kprobe_res",
80 "wrong kprobe res from probe write: %s:%u\n",
81 inet_ntoa(in->sin_addr), ntohs(in->sin_port)))
82 goto cleanup;
83 cleanup:
84 for (i = 0; i < prog_count; i++)
85 bpf_link__destroy(kprobe_links[i]);
86 bpf_object__close(obj);
87 }
88
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