| // SPDX-License-Identifier: GPL-2.0 | |
| // Copyright (c) 2019 Facebook | |
| #include <linux/bpf.h> | |
| #include <bpf/bpf_helpers.h> | |
| char _license[] SEC("license") = "GPL"; | |
| SEC("socket") | |
| int while_true(volatile struct __sk_buff* skb) | |
| { | |
| int i = 0; | |
| while (1) { | |
| if (skb->len) | |
| i += 3; | |
| else | |
| i += 7; | |
| if (i == 9) | |
| break; | |
| barrier(); | |
| if (i == 10) | |
| break; | |
| barrier(); | |
| if (i == 13) | |
| break; | |
| barrier(); | |
| if (i == 14) | |
| break; | |
| } | |
| return i; | |
| } |