1 // SPDX-License-Identifier: GPL-2.0
7 #include "sock_example.h"
10 #include <sys/resource.h>
17 int main(int ac, char **argv)
19 struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
24 snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
25 setrlimit(RLIMIT_MEMLOCK, &r);
27 if (load_bpf_file(filename)) {
28 printf("%s", bpf_log_buf);
32 sock = open_raw_sock("lo");
34 assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
35 sizeof(prog_fd[0])) == 0);
37 f = popen("ping -c5 localhost", "r");
40 for (i = 0; i < 5; i++) {
41 int key = 0, next_key;
44 while (bpf_map_get_next_key(map_fd[0], &key, &next_key) == 0) {
45 bpf_map_lookup_elem(map_fd[0], &next_key, &value);
46 printf("ip %s bytes %lld packets %lld\n",
47 inet_ntoa((struct in_addr){htonl(next_key)}),
48 value.bytes, value.packets);