/* Copyright (c) 2017 Facebook * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. */ #include <stddef.h> #include <linux/bpf.h> #include <linux/pkt_cls.h> #include "bpf_helpers.h" /* It is a dumb bpf program such that it must have no * issue to be loaded since testing the verifier is * not the focus here. */ int _version SEC("version") = 1; struct bpf_map_def SEC("maps") test_map_id = { .type = BPF_MAP_TYPE_ARRAY, .key_size = sizeof(__u32), .value_size = sizeof(__u64), .max_entries = 1, }; SEC("test_obj_id_dummy") int test_obj_id(struct __sk_buff *skb) { __u32 key = 0; __u64 *value; value = bpf_map_lookup_elem(&test_map_id, &key); return TC_ACT_OK; }