Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
fbe33108 AS |
2 | #include <stdio.h> |
3 | #include <assert.h> | |
4 | #include <linux/bpf.h> | |
2bf3e2ef | 5 | #include <bpf/bpf.h> |
4d18f6de | 6 | #include "libbpf.h" |
9899694a | 7 | #include "sock_example.h" |
fbe33108 AS |
8 | #include <unistd.h> |
9 | #include <arpa/inet.h> | |
eb88d585 | 10 | #include <sys/resource.h> |
fbe33108 | 11 | |
614cd3bd AS |
12 | struct pair { |
13 | __u64 packets; | |
14 | __u64 bytes; | |
15 | }; | |
16 | ||
fbe33108 AS |
17 | int main(int ac, char **argv) |
18 | { | |
eb88d585 | 19 | struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; |
1a9b268c JK |
20 | struct bpf_object *obj; |
21 | int map_fd, prog_fd; | |
fbe33108 | 22 | char filename[256]; |
fbe33108 | 23 | int i, sock; |
1a9b268c | 24 | FILE *f; |
fbe33108 AS |
25 | |
26 | snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); | |
eb88d585 | 27 | setrlimit(RLIMIT_MEMLOCK, &r); |
fbe33108 | 28 | |
1a9b268c JK |
29 | if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER, |
30 | &obj, &prog_fd)) | |
fbe33108 | 31 | return 1; |
1a9b268c JK |
32 | |
33 | map_fd = bpf_object__find_map_fd_by_name(obj, "hash_map"); | |
fbe33108 AS |
34 | |
35 | sock = open_raw_sock("lo"); | |
36 | ||
1a9b268c JK |
37 | assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, |
38 | sizeof(prog_fd)) == 0); | |
fbe33108 | 39 | |
5c3cf87d | 40 | f = popen("ping -4 -c5 localhost", "r"); |
fbe33108 AS |
41 | (void) f; |
42 | ||
43 | for (i = 0; i < 5; i++) { | |
44 | int key = 0, next_key; | |
614cd3bd | 45 | struct pair value; |
fbe33108 | 46 | |
1a9b268c JK |
47 | while (bpf_map_get_next_key(map_fd, &key, &next_key) == 0) { |
48 | bpf_map_lookup_elem(map_fd, &next_key, &value); | |
614cd3bd | 49 | printf("ip %s bytes %lld packets %lld\n", |
fbe33108 | 50 | inet_ntoa((struct in_addr){htonl(next_key)}), |
614cd3bd | 51 | value.bytes, value.packets); |
fbe33108 AS |
52 | key = next_key; |
53 | } | |
54 | sleep(1); | |
55 | } | |
56 | return 0; | |
57 | } |