| // SPDX-License-Identifier: GPL-2.0 | |
| #include <linux/bpf.h> | |
| #include <bpf/bpf_helpers.h> | |
| int _version SEC("version") = 1; | |
| char _license[] SEC("license") = "GPL"; | |
| SEC("skb_ctx") | |
| int process(struct __sk_buff *skb) | |
| { | |
| #pragma clang loop unroll(full) | |
| for (int i = 0; i < 5; i++) { | |
| if (skb->cb[i] != i + 1) | |
| return 1; | |
| skb->cb[i]++; | |
| } | |
| skb->priority++; | |
| skb->tstamp++; | |
| skb->mark++; | |
| if (skb->wire_len != 100) | |
| return 1; | |
| if (skb->gso_segs != 8) | |
| return 1; | |
| return 0; | |
| } |