summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/bpf/progs/changes_pkt_data_freplace.c
blob: f9a622705f1b3bb2d6eeadaa2234606be90385a4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
// SPDX-License-Identifier: GPL-2.0

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

SEC("?freplace")
long changes_pkt_data(struct __sk_buff *sk)
{
	return bpf_skb_pull_data(sk, 0);
}

SEC("?freplace")
long does_not_change_pkt_data(struct __sk_buff *sk)
{
	return 0;
}

char _license[] SEC("license") = "GPL";