14 int main(int ac, char **argv)
20 snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
22 if (load_bpf_file(filename)) {
23 printf("%s", bpf_log_buf);
27 sock = open_raw_sock("lo");
29 assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
30 sizeof(prog_fd[0])) == 0);
32 f = popen("ping -c5 localhost", "r");
35 for (i = 0; i < 5; i++) {
36 int key = 0, next_key;
39 while (bpf_get_next_key(map_fd[0], &key, &next_key) == 0) {
40 bpf_lookup_elem(map_fd[0], &next_key, &value);
41 printf("ip %s bytes %lld packets %lld\n",
42 inet_ntoa((struct in_addr){htonl(next_key)}),
43 value.bytes, value.packets);