1 #ifndef _BR_NETFILTER_H_
2 #define _BR_NETFILTER_H_
4 #include "../../../net/bridge/br_private.h"
6 static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
8 skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC);
10 if (likely(skb->nf_bridge))
11 atomic_set(&(skb->nf_bridge->use), 1);
13 return skb->nf_bridge;
16 void nf_bridge_update_protocol(struct sk_buff *skb);
18 int br_nf_hook_thresh(unsigned int hook, struct net *net, struct sock *sk,
19 struct sk_buff *skb, struct net_device *indev,
20 struct net_device *outdev,
21 int (*okfn)(struct net *, struct sock *,
24 static inline struct nf_bridge_info *
25 nf_bridge_info_get(const struct sk_buff *skb)
27 return skb->nf_bridge;
30 unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb);
32 static inline void nf_bridge_push_encap_header(struct sk_buff *skb)
34 unsigned int len = nf_bridge_encap_header_len(skb);
37 skb->network_header -= len;
40 int br_nf_pre_routing_finish_bridge(struct net *net, struct sock *sk, struct sk_buff *skb);
42 static inline struct rtable *bridge_parent_rtable(const struct net_device *dev)
44 struct net_bridge_port *port;
46 port = br_port_get_rcu(dev);
47 return port ? &port->br->fake_rtable : NULL;
50 struct net_device *setup_pre_routing(struct sk_buff *skb);
52 #if IS_ENABLED(CONFIG_IPV6)
53 int br_validate_ipv6(struct net *net, struct sk_buff *skb);
54 unsigned int br_nf_pre_routing_ipv6(void *priv,
56 const struct nf_hook_state *state);
58 static inline int br_validate_ipv6(struct net *net, struct sk_buff *skb)
63 static inline unsigned int
64 br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, struct sk_buff *skb,
65 const struct nf_hook_state *state)
71 #endif /* _BR_NETFILTER_H_ */