Commit | Line | Data |
---|---|---|
a8085782 AS |
1 | #include <stdio.h> |
2 | #include <assert.h> | |
3 | #include <linux/bpf.h> | |
4 | #include "libbpf.h" | |
5 | #include "bpf_load.h" | |
6 | #include <unistd.h> | |
7 | #include <arpa/inet.h> | |
8 | ||
9 | int main(int ac, char **argv) | |
10 | { | |
11 | char filename[256]; | |
12 | FILE *f; | |
13 | int i, sock; | |
14 | ||
15 | snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); | |
16 | ||
17 | if (load_bpf_file(filename)) { | |
18 | printf("%s", bpf_log_buf); | |
19 | return 1; | |
20 | } | |
21 | ||
22 | sock = open_raw_sock("lo"); | |
23 | ||
24 | assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, | |
25 | sizeof(prog_fd[0])) == 0); | |
26 | ||
27 | f = popen("ping -c5 localhost", "r"); | |
28 | (void) f; | |
29 | ||
30 | for (i = 0; i < 5; i++) { | |
31 | long long tcp_cnt, udp_cnt, icmp_cnt; | |
32 | int key; | |
33 | ||
34 | key = IPPROTO_TCP; | |
35 | assert(bpf_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0); | |
36 | ||
37 | key = IPPROTO_UDP; | |
38 | assert(bpf_lookup_elem(map_fd[0], &key, &udp_cnt) == 0); | |
39 | ||
40 | key = IPPROTO_ICMP; | |
41 | assert(bpf_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0); | |
42 | ||
43 | printf("TCP %lld UDP %lld ICMP %lld packets\n", | |
44 | tcp_cnt, udp_cnt, icmp_cnt); | |
45 | sleep(1); | |
46 | } | |
47 | ||
48 | return 0; | |
49 | } |