22 lines
368 B
C
22 lines
368 B
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
/* Copyright (c) 2020 Facebook */
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <linux/bpf.h>
|
||
|
|
#include <bpf/bpf_helpers.h>
|
||
|
|
#include "bpf_misc.h"
|
||
|
|
|
||
|
|
__noinline int foo(struct __sk_buff *skb)
|
||
|
|
{
|
||
|
|
return bpf_get_prandom_u32();
|
||
|
|
}
|
||
|
|
|
||
|
|
SEC("cgroup_skb/ingress")
|
||
|
|
__success
|
||
|
|
int global_func8(struct __sk_buff *skb)
|
||
|
|
{
|
||
|
|
if (!foo(skb))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|