18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci#include <stdio.h> 38c2ecf20Sopenharmony_ci#include <assert.h> 48c2ecf20Sopenharmony_ci#include <linux/bpf.h> 58c2ecf20Sopenharmony_ci#include <bpf/bpf.h> 68c2ecf20Sopenharmony_ci#include <bpf/libbpf.h> 78c2ecf20Sopenharmony_ci#include "sock_example.h" 88c2ecf20Sopenharmony_ci#include <unistd.h> 98c2ecf20Sopenharmony_ci#include <arpa/inet.h> 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ciint main(int ac, char **argv) 128c2ecf20Sopenharmony_ci{ 138c2ecf20Sopenharmony_ci struct bpf_object *obj; 148c2ecf20Sopenharmony_ci int map_fd, prog_fd; 158c2ecf20Sopenharmony_ci char filename[256]; 168c2ecf20Sopenharmony_ci int i, sock; 178c2ecf20Sopenharmony_ci FILE *f; 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); 208c2ecf20Sopenharmony_ci 218c2ecf20Sopenharmony_ci if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER, 228c2ecf20Sopenharmony_ci &obj, &prog_fd)) 238c2ecf20Sopenharmony_ci return 1; 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci map_fd = bpf_object__find_map_fd_by_name(obj, "my_map"); 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ci sock = open_raw_sock("lo"); 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, 308c2ecf20Sopenharmony_ci sizeof(prog_fd)) == 0); 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci f = popen("ping -4 -c5 localhost", "r"); 338c2ecf20Sopenharmony_ci (void) f; 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci for (i = 0; i < 5; i++) { 368c2ecf20Sopenharmony_ci long long tcp_cnt, udp_cnt, icmp_cnt; 378c2ecf20Sopenharmony_ci int key; 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci key = IPPROTO_TCP; 408c2ecf20Sopenharmony_ci assert(bpf_map_lookup_elem(map_fd, &key, &tcp_cnt) == 0); 418c2ecf20Sopenharmony_ci 428c2ecf20Sopenharmony_ci key = IPPROTO_UDP; 438c2ecf20Sopenharmony_ci assert(bpf_map_lookup_elem(map_fd, &key, &udp_cnt) == 0); 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci key = IPPROTO_ICMP; 468c2ecf20Sopenharmony_ci assert(bpf_map_lookup_elem(map_fd, &key, &icmp_cnt) == 0); 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci printf("TCP %lld UDP %lld ICMP %lld bytes\n", 498c2ecf20Sopenharmony_ci tcp_cnt, udp_cnt, icmp_cnt); 508c2ecf20Sopenharmony_ci sleep(1); 518c2ecf20Sopenharmony_ci } 528c2ecf20Sopenharmony_ci 538c2ecf20Sopenharmony_ci return 0; 548c2ecf20Sopenharmony_ci} 55