Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include <linux/bpf.h>
2#include <bpf/bpf_helpers.h>
3#include <bpf/bpf_endian.h>
4
5struct {
6 __uint(type, BPF_MAP_TYPE_SOCKMAP);
7 __uint(max_entries, 20);
8 __type(key, int);
9 __type(value, int);
10} sock_map_rx SEC(".maps");
11
12struct {
13 __uint(type, BPF_MAP_TYPE_SOCKMAP);
14 __uint(max_entries, 20);
15 __type(key, int);
16 __type(value, int);
17} sock_map_tx SEC(".maps");
18
19struct {
20 __uint(type, BPF_MAP_TYPE_SOCKMAP);
21 __uint(max_entries, 20);
22 __type(key, int);
23 __type(value, int);
24} sock_map_msg SEC(".maps");
25
26SEC("sk_skb/stream_verdict")
27int prog_skb_verdict(struct __sk_buff *skb)
28{
29 return SK_PASS;
30}
31
32int clone_called;
33
34SEC("sk_skb/stream_verdict")
35int prog_skb_verdict_clone(struct __sk_buff *skb)
36{
37 clone_called = 1;
38 return SK_PASS;
39}
40
41SEC("sk_skb/stream_parser")
42int prog_skb_parser(struct __sk_buff *skb)
43{
44 return SK_PASS;
45}
46
47SEC("sk_skb/stream_verdict")
48int prog_skb_verdict_ingress(struct __sk_buff *skb)
49{
50 int one = 1;
51
52 return bpf_sk_redirect_map(skb, &sock_map_rx, one, BPF_F_INGRESS);
53}
54
55SEC("sk_skb/stream_parser")
56int prog_skb_verdict_ingress_strp(struct __sk_buff *skb)
57{
58 return skb->len;
59}
60
61char _license[] SEC("license") = "GPL";