6 #include "sock_example.h"
10 int main(int ac, char **argv)
16 snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
18 if (load_bpf_file(filename)) {
19 printf("%s", bpf_log_buf);
23 sock = open_raw_sock("lo");
25 assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
26 sizeof(prog_fd[0])) == 0);
28 f = popen("ping -c5 localhost", "r");
31 for (i = 0; i < 5; i++) {
32 long long tcp_cnt, udp_cnt, icmp_cnt;
36 assert(bpf_map_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0);
39 assert(bpf_map_lookup_elem(map_fd[0], &key, &udp_cnt) == 0);
42 assert(bpf_map_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0);
44 printf("TCP %lld UDP %lld ICMP %lld bytes\n",
45 tcp_cnt, udp_cnt, icmp_cnt);