1 // SPDX-License-Identifier: GPL-2.0
7 #include "sock_example.h"
11 int main(int ac, char **argv)
17 snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
19 if (load_bpf_file(filename)) {
20 printf("%s", bpf_log_buf);
24 sock = open_raw_sock("lo");
26 assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
27 sizeof(prog_fd[0])) == 0);
29 f = popen("ping -c5 localhost", "r");
32 for (i = 0; i < 5; i++) {
33 long long tcp_cnt, udp_cnt, icmp_cnt;
37 assert(bpf_map_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0);
40 assert(bpf_map_lookup_elem(map_fd[0], &key, &udp_cnt) == 0);
43 assert(bpf_map_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0);
45 printf("TCP %lld UDP %lld ICMP %lld bytes\n",
46 tcp_cnt, udp_cnt, icmp_cnt);