| int main(int ac, char **argv) |
| snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); |
| if (load_bpf_file(filename)) { |
| printf("%s", bpf_log_buf); |
| sock = open_raw_sock("lo"); |
| assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, |
| sizeof(prog_fd[0])) == 0); |
| f = popen("ping -c5 localhost", "r"); |
| for (i = 0; i < 5; i++) { |
| long long tcp_cnt, udp_cnt, icmp_cnt; |
| assert(bpf_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0); |
| assert(bpf_lookup_elem(map_fd[0], &key, &udp_cnt) == 0); |
| assert(bpf_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0); |
| printf("TCP %lld UDP %lld ICMP %lld bytes\n", |
| tcp_cnt, udp_cnt, icmp_cnt); |