1 #ifndef __LINUX_BRIDGE_NETFILTER_H
2 #define __LINUX_BRIDGE_NETFILTER_H
4 #include <uapi/linux/netfilter_bridge.h>
5 #include <linux/skbuff.h>
7 enum nf_br_hook_priorities {
8 NF_BR_PRI_FIRST = INT_MIN,
9 NF_BR_PRI_NAT_DST_BRIDGED = -300,
10 NF_BR_PRI_FILTER_BRIDGED = -200,
12 NF_BR_PRI_NAT_DST_OTHER = 100,
13 NF_BR_PRI_FILTER_OTHER = 200,
14 NF_BR_PRI_NAT_SRC = 300,
15 NF_BR_PRI_LAST = INT_MAX,
18 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
20 #define BRNF_BRIDGED_DNAT 0x02
21 #define BRNF_NF_BRIDGE_PREROUTING 0x08
23 int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb);
25 static inline void br_drop_fake_rtable(struct sk_buff *skb)
27 struct dst_entry *dst = skb_dst(skb);
29 if (dst && (dst->flags & DST_FAKE_RTABLE))
33 static inline int nf_bridge_get_physinif(const struct sk_buff *skb)
35 struct nf_bridge_info *nf_bridge;
37 if (skb->nf_bridge == NULL)
40 nf_bridge = skb->nf_bridge;
41 return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0;
44 static inline int nf_bridge_get_physoutif(const struct sk_buff *skb)
46 struct nf_bridge_info *nf_bridge;
48 if (skb->nf_bridge == NULL)
51 nf_bridge = skb->nf_bridge;
52 return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0;
55 static inline struct net_device *
56 nf_bridge_get_physindev(const struct sk_buff *skb)
58 return skb->nf_bridge ? skb->nf_bridge->physindev : NULL;
61 static inline struct net_device *
62 nf_bridge_get_physoutdev(const struct sk_buff *skb)
64 return skb->nf_bridge ? skb->nf_bridge->physoutdev : NULL;
67 #define br_drop_fake_rtable(skb) do { } while (0)
68 #endif /* CONFIG_BRIDGE_NETFILTER */