1 // SPDX-License-Identifier: GPL-2.0-only 2 #include <stddef.h> 3 #include <linux/bpf.h> 4 #include <bpf/bpf_helpers.h> 5 6 struct S { 7 int x; 8 }; 9 10 __noinline int foo(const struct S *s) 11 { 12 return s ? bpf_get_prandom_u32() < s->x : 0; 13 } 14 15 SEC("cgroup_skb/ingress") 16 int test_cls(struct __sk_buff *skb) 17 { 18 return foo((const void *)skb); 19 } 20