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

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