1// SPDX-License-Identifier: GPL-2.0
2#include <linux/bpf.h>
3#include <bpf/bpf_helpers.h>
4
5struct {
6	__uint(type, BPF_MAP_TYPE_CPUMAP);
7	__type(key, __u32);
8	__type(value, struct bpf_cpumap_val);
9	__uint(max_entries, 1);
10} cpu_map SEC(".maps");
11
12SEC("xdp/cpumap")
13int xdp_drop_prog(struct xdp_md *ctx)
14{
15	return XDP_DROP;
16}
17
18SEC("freplace")
19int xdp_cpumap_prog(struct xdp_md *ctx)
20{
21	return bpf_redirect_map(&cpu_map, 0, XDP_PASS);
22}
23
24char _license[] SEC("license") = "GPL";
25