1#include <stdio.h>
 2#include <assert.h>
 3#include <linux/bpf.h>
 4#include "libbpf.h"
 5#include "bpf_load.h"
 6#include "sock_example.h"
 7#include <unistd.h>
 8#include <arpa/inet.h>
 9
10int main(int ac, char **argv)
11{
 
 
12	char filename[256];
13	FILE *f;
14	int i, sock;
 
15
16	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
17
18	if (load_bpf_file(filename)) {
19		printf("%s", bpf_log_buf);
20		return 1;
21	}
 
22
23	sock = open_raw_sock("lo");
24
25	assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
26			  sizeof(prog_fd[0])) == 0);
27
28	f = popen("ping -c5 localhost", "r");
29	(void) f;
30
31	for (i = 0; i < 5; i++) {
32		long long tcp_cnt, udp_cnt, icmp_cnt;
33		int key;
34
35		key = IPPROTO_TCP;
36		assert(bpf_map_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0);
37
38		key = IPPROTO_UDP;
39		assert(bpf_map_lookup_elem(map_fd[0], &key, &udp_cnt) == 0);
40
41		key = IPPROTO_ICMP;
42		assert(bpf_map_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0);
43
44		printf("TCP %lld UDP %lld ICMP %lld bytes\n",
45		       tcp_cnt, udp_cnt, icmp_cnt);
46		sleep(1);
47	}
48
49	return 0;
50}

 1// SPDX-License-Identifier: GPL-2.0
 2#include <stdio.h>
 3#include <assert.h>
 4#include <linux/bpf.h>
 5#include <bpf/bpf.h>
 6#include <bpf/libbpf.h>
 7#include "sock_example.h"
 8#include <unistd.h>
 9#include <arpa/inet.h>
10
11int main(int ac, char **argv)
12{
13	struct bpf_object *obj;
14	int map_fd, prog_fd;
15	char filename[256];
 
16	int i, sock;
17	FILE *f;
18
19	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
20
21	if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER,
22			  &obj, &prog_fd))
23		return 1;
24
25	map_fd = bpf_object__find_map_fd_by_name(obj, "my_map");
26
27	sock = open_raw_sock("lo");
28
29	assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd,
30			  sizeof(prog_fd)) == 0);
31
32	f = popen("ping -4 -c5 localhost", "r");
33	(void) f;
34
35	for (i = 0; i < 5; i++) {
36		long long tcp_cnt, udp_cnt, icmp_cnt;
37		int key;
38
39		key = IPPROTO_TCP;
40		assert(bpf_map_lookup_elem(map_fd, &key, &tcp_cnt) == 0);
41
42		key = IPPROTO_UDP;
43		assert(bpf_map_lookup_elem(map_fd, &key, &udp_cnt) == 0);
44
45		key = IPPROTO_ICMP;
46		assert(bpf_map_lookup_elem(map_fd, &key, &icmp_cnt) == 0);
47
48		printf("TCP %lld UDP %lld ICMP %lld bytes\n",
49		       tcp_cnt, udp_cnt, icmp_cnt);
50		sleep(1);
51	}
52
53	return 0;
54}