1/* Copyright (c) 2017 Facebook
 2 *
 3 * This program is free software; you can redistribute it and/or
 4 * modify it under the terms of version 2 of the GNU General Public
 5 * License as published by the Free Software Foundation.
 6 */
 7#include <stddef.h>
 8#include <linux/bpf.h>
 9#include <linux/pkt_cls.h>
10#include "bpf_helpers.h"
11
12/* It is a dumb bpf program such that it must have no
13 * issue to be loaded since testing the verifier is
14 * not the focus here.
15 */
16
17int _version SEC("version") = 1;
18
19struct bpf_map_def SEC("maps") test_map_id = {
20	.type = BPF_MAP_TYPE_ARRAY,
21	.key_size = sizeof(__u32),
22	.value_size = sizeof(__u64),
23	.max_entries = 1,
24};
25
26SEC("test_obj_id_dummy")
27int test_obj_id(struct __sk_buff *skb)
28{
29	__u32 key = 0;
30	__u64 *value;
31
32	value = bpf_map_lookup_elem(&test_map_id, &key);
33
34	return TC_ACT_OK;
35}