Cregit: Linux 5.16: test_skb

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Stanislav Fomichev	113	69.33%	3	37.50%
Neil Spring	22	13.50%	1	12.50%
Vadim Fedorenko	11	6.75%	1	12.50%
Willem de Bruijn	11	6.75%	1	12.50%
Nikita V. Shirokov	5	3.07%	1	12.50%
Toke Höiland-Jörgensen	1	0.61%	1	12.50%
Total	163		8

// SPDX-License-Identifier: GPL-2.0

#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>

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;
}

test_skb_ctx.c