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[linux.git] / tools / testing / selftests / bpf / progs / test_sockmap_invalid_update.c
1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2020 Cloudflare
3 #include "vmlinux.h"
4 #include <bpf/bpf_helpers.h>
5
6 struct {
7         __uint(type, BPF_MAP_TYPE_SOCKMAP);
8         __uint(max_entries, 1);
9         __type(key, __u32);
10         __type(value, __u64);
11 } map SEC(".maps");
12
13 SEC("sockops")
14 int bpf_sockmap(struct bpf_sock_ops *skops)
15 {
16         __u32 key = 0;
17
18         if (skops->sk)
19                 bpf_map_update_elem(&map, &key, skops->sk, 0);
20         return 0;
21 }
22
23 char _license[] SEC("license") = "GPL";
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