Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
a8085782 AS |
2 | #include <stdio.h> |
3 | #include <assert.h> | |
4 | #include <linux/bpf.h> | |
2bf3e2ef | 5 | #include <bpf/bpf.h> |
7cf245a3 | 6 | #include <bpf/libbpf.h> |
9899694a | 7 | #include "sock_example.h" |
a8085782 AS |
8 | #include <unistd.h> |
9 | #include <arpa/inet.h> | |
10 | ||
11 | int main(int ac, char **argv) | |
12 | { | |
1a9b268c | 13 | struct bpf_object *obj; |
c58f9815 | 14 | struct bpf_program *prog; |
1a9b268c | 15 | int map_fd, prog_fd; |
a8085782 | 16 | char filename[256]; |
c58f9815 | 17 | int i, sock, err; |
1a9b268c | 18 | FILE *f; |
a8085782 AS |
19 | |
20 | snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); | |
21 | ||
c58f9815 AN |
22 | obj = bpf_object__open_file(filename, NULL); |
23 | if (libbpf_get_error(obj)) | |
a8085782 | 24 | return 1; |
1a9b268c | 25 | |
c58f9815 AN |
26 | prog = bpf_object__next_program(obj, NULL); |
27 | bpf_program__set_type(prog, BPF_PROG_TYPE_SOCKET_FILTER); | |
28 | ||
29 | err = bpf_object__load(obj); | |
30 | if (err) | |
31 | return 1; | |
32 | ||
33 | prog_fd = bpf_program__fd(prog); | |
1a9b268c | 34 | map_fd = bpf_object__find_map_fd_by_name(obj, "my_map"); |
a8085782 AS |
35 | |
36 | sock = open_raw_sock("lo"); | |
37 | ||
1a9b268c JK |
38 | assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, |
39 | sizeof(prog_fd)) == 0); | |
a8085782 | 40 | |
5c3cf87d | 41 | f = popen("ping -4 -c5 localhost", "r"); |
a8085782 AS |
42 | (void) f; |
43 | ||
44 | for (i = 0; i < 5; i++) { | |
45 | long long tcp_cnt, udp_cnt, icmp_cnt; | |
46 | int key; | |
47 | ||
48 | key = IPPROTO_TCP; | |
1a9b268c | 49 | assert(bpf_map_lookup_elem(map_fd, &key, &tcp_cnt) == 0); |
a8085782 AS |
50 | |
51 | key = IPPROTO_UDP; | |
1a9b268c | 52 | assert(bpf_map_lookup_elem(map_fd, &key, &udp_cnt) == 0); |
a8085782 AS |
53 | |
54 | key = IPPROTO_ICMP; | |
1a9b268c | 55 | assert(bpf_map_lookup_elem(map_fd, &key, &icmp_cnt) == 0); |
a8085782 | 56 | |
614cd3bd | 57 | printf("TCP %lld UDP %lld ICMP %lld bytes\n", |
a8085782 AS |
58 | tcp_cnt, udp_cnt, icmp_cnt); |
59 | sleep(1); | |
60 | } | |
61 | ||
62 | return 0; | |
63 | } |