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502061f8 PNA |
1 | /* |
2 | * Copyright (c) 2015 Pablo Neira Ayuso <pablo@netfilter.org> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License version 2 as published by | |
6 | * the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/init.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/netlink.h> | |
13 | #include <linux/netfilter.h> | |
14 | #include <linux/netfilter/nf_tables.h> | |
15 | #include <net/netfilter/nf_tables.h> | |
16 | ||
17 | void nf_dup_netdev_egress(const struct nft_pktinfo *pkt, int oif) | |
18 | { | |
19 | struct net_device *dev; | |
20 | struct sk_buff *skb; | |
21 | ||
22 | dev = dev_get_by_index_rcu(pkt->net, oif); | |
23 | if (dev == NULL) | |
24 | return; | |
25 | ||
26 | skb = skb_clone(pkt->skb, GFP_ATOMIC); | |
27 | if (skb == NULL) | |
28 | return; | |
29 | ||
30 | if (skb_mac_header_was_set(skb)) | |
31 | skb_push(skb, skb->mac_len); | |
32 | ||
33 | skb->dev = dev; | |
502061f8 PNA |
34 | dev_queue_xmit(skb); |
35 | } | |
36 | EXPORT_SYMBOL_GPL(nf_dup_netdev_egress); | |
37 | ||
38 | MODULE_LICENSE("GPL"); | |
39 | MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>"); |