tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/bpf.h>
4#include <bpf/bpf_helpers.h>
5#include "bpf_misc.h"
6
7__noinline
8int subprog_tc(struct __sk_buff *skb)
9{
10 int ret = 1;
11
12 __sink(skb);
13 __sink(ret);
14 /* let verifier know that 'subprog_tc' can change pointers to skb->data */
15 bpf_skb_change_proto(skb, 0, 0);
16 return ret;
17}
18
19SEC("tc")
20int entry_tc(struct __sk_buff *skb)
21{
22 return subprog_tc(skb);
23}
24
25char __license[] SEC("license") = "GPL";