1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BR_NETFILTER_H_
3 #define _BR_NETFILTER_H_
5 #include "../../../net/bridge/br_private.h"
7 static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
9 struct nf_bridge_info *b = skb_ext_add(skb, SKB_EXT_BRIDGE_NF);
12 memset(b, 0, sizeof(*b));
17 void nf_bridge_update_protocol(struct sk_buff *skb);
19 int br_nf_hook_thresh(unsigned int hook, struct net *net, struct sock *sk,
20 struct sk_buff *skb, struct net_device *indev,
21 struct net_device *outdev,
22 int (*okfn)(struct net *, struct sock *,
25 unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb);
27 static inline void nf_bridge_push_encap_header(struct sk_buff *skb)
29 unsigned int len = nf_bridge_encap_header_len(skb);
32 skb->network_header -= len;
35 int br_nf_pre_routing_finish_bridge(struct net *net, struct sock *sk, struct sk_buff *skb);
37 static inline struct rtable *bridge_parent_rtable(const struct net_device *dev)
39 struct net_bridge_port *port;
41 port = br_port_get_rcu(dev);
42 return port ? &port->br->fake_rtable : NULL;
45 struct net_device *setup_pre_routing(struct sk_buff *skb,
46 const struct net *net);
48 #if IS_ENABLED(CONFIG_IPV6)
49 int br_validate_ipv6(struct net *net, struct sk_buff *skb);
50 unsigned int br_nf_pre_routing_ipv6(void *priv,
52 const struct nf_hook_state *state);
54 static inline int br_validate_ipv6(struct net *net, struct sk_buff *skb)
59 static inline unsigned int
60 br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, struct sk_buff *skb,
61 const struct nf_hook_state *state)
67 #endif /* _BR_NETFILTER_H_ */