Merge branch 'parisc-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
[cascardo/linux.git] / samples / bpf / sockex2_user.c
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 #include <sys/resource.h>
9
10 struct pair {
11         __u64 packets;
12         __u64 bytes;
13 };
14
15 int main(int ac, char **argv)
16 {
17         struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
18         char filename[256];
19         FILE *f;
20         int i, sock;
21
22         snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
23         setrlimit(RLIMIT_MEMLOCK, &r);
24
25         if (load_bpf_file(filename)) {
26                 printf("%s", bpf_log_buf);
27                 return 1;
28         }
29
30         sock = open_raw_sock("lo");
31
32         assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
33                           sizeof(prog_fd[0])) == 0);
34
35         f = popen("ping -c5 localhost", "r");
36         (void) f;
37
38         for (i = 0; i < 5; i++) {
39                 int key = 0, next_key;
40                 struct pair value;
41
42                 while (bpf_get_next_key(map_fd[0], &key, &next_key) == 0) {
43                         bpf_lookup_elem(map_fd[0], &next_key, &value);
44                         printf("ip %s bytes %lld packets %lld\n",
45                                inet_ntoa((struct in_addr){htonl(next_key)}),
46                                value.bytes, value.packets);
47                         key = next_key;
48                 }
49                 sleep(1);
50         }
51         return 0;
52 }