Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __LINUX_BRIDGE_NETFILTER_H
3#define __LINUX_BRIDGE_NETFILTER_H
4
5#include <uapi/linux/netfilter_bridge.h>
6#include <linux/skbuff.h>
7
8#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
9
10int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb);
11
12static inline void br_drop_fake_rtable(struct sk_buff *skb)
13{
14 struct dst_entry *dst = skb_dst(skb);
15
16 if (dst && (dst->flags & DST_FAKE_RTABLE))
17 skb_dst_drop(skb);
18}
19
20static inline int nf_bridge_get_physinif(const struct sk_buff *skb)
21{
22 struct nf_bridge_info *nf_bridge;
23
24 if (skb->nf_bridge == NULL)
25 return 0;
26
27 nf_bridge = skb->nf_bridge;
28 return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0;
29}
30
31static inline int nf_bridge_get_physoutif(const struct sk_buff *skb)
32{
33 struct nf_bridge_info *nf_bridge;
34
35 if (skb->nf_bridge == NULL)
36 return 0;
37
38 nf_bridge = skb->nf_bridge;
39 return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0;
40}
41
42static inline struct net_device *
43nf_bridge_get_physindev(const struct sk_buff *skb)
44{
45 return skb->nf_bridge ? skb->nf_bridge->physindev : NULL;
46}
47
48static inline struct net_device *
49nf_bridge_get_physoutdev(const struct sk_buff *skb)
50{
51 return skb->nf_bridge ? skb->nf_bridge->physoutdev : NULL;
52}
53
54static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb)
55{
56 return skb->nf_bridge && skb->nf_bridge->in_prerouting;
57}
58#else
59#define br_drop_fake_rtable(skb) do { } while (0)
60static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb)
61{
62 return false;
63}
64#endif /* CONFIG_BRIDGE_NETFILTER */
65
66#endif