20 lines
324 B
C
20 lines
324 B
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
#include <stddef.h>
|
||
|
#include <linux/bpf.h>
|
||
|
#include <bpf/bpf_helpers.h>
|
||
|
|
||
|
struct S {
|
||
|
int x;
|
||
|
};
|
||
|
|
||
|
__noinline int foo(const struct S *s)
|
||
|
{
|
||
|
return s ? bpf_get_prandom_u32() < s->x : 0;
|
||
|
}
|
||
|
|
||
|
SEC("cgroup_skb/ingress")
|
||
|
int test_cls(struct __sk_buff *skb)
|
||
|
{
|
||
|
return foo((const void *)skb);
|
||
|
}
|