Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <vmlinux.h>
4#include <bpf/bpf_helpers.h>
5
6SEC("?freplace")
7long changes_pkt_data(struct __sk_buff *sk)
8{
9 return bpf_skb_pull_data(sk, 0);
10}
11
12SEC("?freplace")
13long does_not_change_pkt_data(struct __sk_buff *sk)
14{
15 return 0;
16}
17
18SEC("?freplace")
19long might_sleep(struct pt_regs *ctx)
20{
21 int i;
22
23 bpf_copy_from_user(&i, sizeof(i), NULL);
24 return i;
25}
26
27SEC("?freplace")
28long does_not_sleep(struct pt_regs *ctx)
29{
30 return 0;
31}
32
33char _license[] SEC("license") = "GPL";