| // 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; |
| if (skb->gso_size != 10) |
| return 1; |
| if (skb->ingress_ifindex != 11) |
| return 1; |
| if (skb->ifindex != 1) |
| return 1; |
| if (skb->hwtstamp != 11) |
| return 1; |
| |
| return 0; |
| } |
