| 1 | // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause |
|---|---|
| 2 | #include <linux/bpf.h> |
| 3 | #include <bpf/bpf_helpers.h> |
| 4 | #include <bpf/bpf_endian.h> |
| 5 | |
| 6 | char _license[] SEC("license") = "GPL"; |
| 7 | |
| 8 | int ifindex; |
| 9 | int ret; |
| 10 | |
| 11 | SEC("lwt_xmit") |
| 12 | int redirect_ingress(struct __sk_buff *skb) |
| 13 | { |
| 14 | ret = bpf_clone_redirect(skb, ifindex, BPF_F_INGRESS); |
| 15 | return 0; |
| 16 | } |
| 17 | |
| 18 | SEC("lwt_xmit") |
| 19 | int redirect_egress(struct __sk_buff *skb) |
| 20 | { |
| 21 | ret = bpf_clone_redirect(skb, ifindex, 0); |
| 22 | return 0; |
| 23 | } |
| 24 | |
| 25 | SEC("tc") |
| 26 | int tc_redirect_ingress(struct __sk_buff *skb) |
| 27 | { |
| 28 | ret = bpf_clone_redirect(skb, ifindex, BPF_F_INGRESS); |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | SEC("tc") |
| 33 | int tc_redirect_egress(struct __sk_buff *skb) |
| 34 | { |
| 35 | ret = bpf_clone_redirect(skb, ifindex, 0); |
| 36 | return 0; |
| 37 | } |
| 38 |