25 lines
449 B
C
25 lines
449 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
|
|
#include <linux/bpf.h>
|
|
#include <bpf/bpf_helpers.h>
|
|
#include "bpf_misc.h"
|
|
|
|
__noinline
|
|
int subprog_tc(struct __sk_buff *skb)
|
|
{
|
|
int ret = 1;
|
|
|
|
__sink(skb);
|
|
__sink(ret);
|
|
/* let verifier know that 'subprog_tc' can change pointers to skb->data */
|
|
bpf_skb_change_proto(skb, 0, 0);
|
|
return ret;
|
|
}
|
|
|
|
SEC("tc")
|
|
int entry_tc(struct __sk_buff *skb)
|
|
{
|
|
return subprog_tc(skb);
|
|
}
|
|
|
|
char __license[] SEC("license") = "GPL";
|