1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2023 Hengqi Chen */
3
4 #include "vmlinux.h"
5 #include <bpf/bpf_helpers.h>
6 #include <bpf/bpf_tracing.h>
7
8 pid_t my_pid = 0;
9
10 int test1_result = 0;
11 int test2_result = 0;
12 int test3_result = 0;
13 int test4_result = 0;
14
15 SEC("uprobe/./liburandom_read.so:urandlib_api_sameoffset")
16 int BPF_UPROBE(test1)
17 {
18 pid_t pid = bpf_get_current_pid_tgid() >> 32;
19
20 if (pid != my_pid)
21 return 0;
22
23 test1_result = 1;
24 return 0;
25 }
26
27 SEC("uprobe/./liburandom_read.so:urandlib_api_sameoffset@LIBURANDOM_READ_1.0.0")
28 int BPF_UPROBE(test2)
29 {
30 pid_t pid = bpf_get_current_pid_tgid() >> 32;
31
32 if (pid != my_pid)
33 return 0;
34
35 test2_result = 1;
36 return 0;
37 }
38
39 SEC("uretprobe/./liburandom_read.so:urandlib_api_sameoffset@@LIBURANDOM_READ_2.0.0")
40 int BPF_URETPROBE(test3, int ret)
41 {
42 pid_t pid = bpf_get_current_pid_tgid() >> 32;
43
44 if (pid != my_pid)
45 return 0;
46
47 test3_result = ret;
48 return 0;
49 }
50
51 SEC("uprobe")
52 int BPF_UPROBE(test4)
53 {
54 pid_t pid = bpf_get_current_pid_tgid() >> 32;
55
56 if (pid != my_pid)
57 return 0;
58
59 test4_result = 1;
60 return 0;
61 }
62
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