Merge remote-tracking branches 'regulator/topic/notifier', 'regulator/topic/pfuze100...
[sfrench/cifs-2.6.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 "sock_example.h"
7 #include <unistd.h>
8 #include <arpa/inet.h>
9 #include <sys/resource.h>
10
11 struct pair {
12         __u64 packets;
13         __u64 bytes;
14 };
15
16 int main(int ac, char **argv)
17 {
18         struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
19         char filename[256];
20         FILE *f;
21         int i, sock;
22
23         snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
24         setrlimit(RLIMIT_MEMLOCK, &r);
25
26         if (load_bpf_file(filename)) {
27                 printf("%s", bpf_log_buf);
28                 return 1;
29         }
30
31         sock = open_raw_sock("lo");
32
33         assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
34                           sizeof(prog_fd[0])) == 0);
35
36         f = popen("ping -c5 localhost", "r");
37         (void) f;
38
39         for (i = 0; i < 5; i++) {
40                 int key = 0, next_key;
41                 struct pair value;
42
43                 while (bpf_map_get_next_key(map_fd[0], &key, &next_key) == 0) {
44                         bpf_map_lookup_elem(map_fd[0], &next_key, &value);
45                         printf("ip %s bytes %lld packets %lld\n",
46                                inet_ntoa((struct in_addr){htonl(next_key)}),
47                                value.bytes, value.packets);
48                         key = next_key;
49                 }
50                 sleep(1);
51         }
52         return 0;
53 }