1// SPDX-License-Identifier: GPL-2.0
 2#include <test_progs.h>
 3#include "kprobe_multi.skel.h"
 4#include "trace_helpers.h"
 5#include "bpf/libbpf_internal.h"
 6
 7static void kprobe_multi_testmod_check(struct kprobe_multi *skel)
 8{
 9	ASSERT_EQ(skel->bss->kprobe_testmod_test1_result, 1, "kprobe_test1_result");
10	ASSERT_EQ(skel->bss->kprobe_testmod_test2_result, 1, "kprobe_test2_result");
11	ASSERT_EQ(skel->bss->kprobe_testmod_test3_result, 1, "kprobe_test3_result");
12
13	ASSERT_EQ(skel->bss->kretprobe_testmod_test1_result, 1, "kretprobe_test1_result");
14	ASSERT_EQ(skel->bss->kretprobe_testmod_test2_result, 1, "kretprobe_test2_result");
15	ASSERT_EQ(skel->bss->kretprobe_testmod_test3_result, 1, "kretprobe_test3_result");
16}
17
18static void test_testmod_attach_api(struct bpf_kprobe_multi_opts *opts)
19{
20	struct kprobe_multi *skel = NULL;
21
22	skel = kprobe_multi__open_and_load();
23	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
24		return;
25
26	skel->bss->pid = getpid();
27
28	skel->links.test_kprobe_testmod = bpf_program__attach_kprobe_multi_opts(
29						skel->progs.test_kprobe_testmod,
30						NULL, opts);
31	if (!skel->links.test_kprobe_testmod)
32		goto cleanup;
33
34	opts->retprobe = true;
35	skel->links.test_kretprobe_testmod = bpf_program__attach_kprobe_multi_opts(
36						skel->progs.test_kretprobe_testmod,
37						NULL, opts);
38	if (!skel->links.test_kretprobe_testmod)
39		goto cleanup;
40
41	ASSERT_OK(trigger_module_test_read(1), "trigger_read");
42	kprobe_multi_testmod_check(skel);
43
44cleanup:
45	kprobe_multi__destroy(skel);
46}
47
48static void test_testmod_attach_api_addrs(void)
49{
50	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
51	unsigned long long addrs[3];
52
53	addrs[0] = ksym_get_addr("bpf_testmod_fentry_test1");
54	ASSERT_NEQ(addrs[0], 0, "ksym_get_addr");
55	addrs[1] = ksym_get_addr("bpf_testmod_fentry_test2");
56	ASSERT_NEQ(addrs[1], 0, "ksym_get_addr");
57	addrs[2] = ksym_get_addr("bpf_testmod_fentry_test3");
58	ASSERT_NEQ(addrs[2], 0, "ksym_get_addr");
59
60	opts.addrs = (const unsigned long *) addrs;
61	opts.cnt = ARRAY_SIZE(addrs);
62
63	test_testmod_attach_api(&opts);
64}
65
66static void test_testmod_attach_api_syms(void)
67{
68	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
69	const char *syms[3] = {
70		"bpf_testmod_fentry_test1",
71		"bpf_testmod_fentry_test2",
72		"bpf_testmod_fentry_test3",
73	};
74
75	opts.syms = syms;
76	opts.cnt = ARRAY_SIZE(syms);
77	test_testmod_attach_api(&opts);
78}
79
80void serial_test_kprobe_multi_testmod_test(void)
81{
82	if (!ASSERT_OK(load_kallsyms_refresh(), "load_kallsyms_refresh"))
83		return;
84
85	if (test__start_subtest("testmod_attach_api_syms"))
86		test_testmod_attach_api_syms();
87	if (test__start_subtest("testmod_attach_api_addrs"))
88		test_testmod_attach_api_addrs();
89}