1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_BRIDGE_NETFILTER_H
3 #define __LINUX_BRIDGE_NETFILTER_H
5 #include <uapi/linux/netfilter_bridge.h>
6 #include <linux/skbuff.h>
8 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
10 int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb);
12 static inline void br_drop_fake_rtable(struct sk_buff *skb)
14 struct dst_entry *dst = skb_dst(skb);
16 if (dst && (dst->flags & DST_FAKE_RTABLE))
20 static inline struct nf_bridge_info *
21 nf_bridge_info_get(const struct sk_buff *skb)
23 return skb_ext_find(skb, SKB_EXT_BRIDGE_NF);
26 static inline bool nf_bridge_info_exists(const struct sk_buff *skb)
28 return skb_ext_exist(skb, SKB_EXT_BRIDGE_NF);
31 static inline int nf_bridge_get_physinif(const struct sk_buff *skb)
33 const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
38 return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0;
41 static inline int nf_bridge_get_physoutif(const struct sk_buff *skb)
43 const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
48 return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0;
51 static inline struct net_device *
52 nf_bridge_get_physindev(const struct sk_buff *skb)
54 const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
56 return nf_bridge ? nf_bridge->physindev : NULL;
59 static inline struct net_device *
60 nf_bridge_get_physoutdev(const struct sk_buff *skb)
62 const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
64 return nf_bridge ? nf_bridge->physoutdev : NULL;
67 static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb)
69 const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
71 return nf_bridge && nf_bridge->in_prerouting;
74 #define br_drop_fake_rtable(skb) do { } while (0)
75 static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb)
79 #endif /* CONFIG_BRIDGE_NETFILTER */