1 // SPDX-License-Identifier: GPL-2.0
2
3 #include <linux/bpf.h>
4 #include <bpf/bpf_helpers.h>
5
6 #include "bpf_compiler.h"
7
8 char _license[] SEC("license") = "GPL";
9
10 SEC("tc")
11 int process(struct __sk_buff *skb)
12 {
13 __pragma_loop_unroll_full
14 for (int i = 0; i < 5; i++) {
15 if (skb->cb[i] != i + 1)
16 return 1;
17 skb->cb[i]++;
18 }
19 skb->priority++;
20 skb->tstamp++;
21 skb->mark++;
22
23 if (skb->wire_len != 100)
24 return 1;
25 if (skb->gso_segs != 8)
26 return 1;
27 if (skb->gso_size != 10)
28 return 1;
29 if (skb->ingress_ifindex != 11)
30 return 1;
31 if (skb->ifindex != 1)
32 return 1;
33 if (skb->hwtstamp != 11)
34 return 1;
35
36 return 0;
37 }
38
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