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#ifndef _BR_NETFILTER_H_
#define _BR_NETFILTER_H_
#include "../../../net/bridge/br_private.h"
static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
{
skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC);
if (likely(skb->nf_bridge))
atomic_set(&(skb->nf_bridge->use), 1);
return skb->nf_bridge;
}
void nf_bridge_update_protocol(struct sk_buff *skb);
int br_nf_hook_thresh(unsigned int hook, struct net *net, struct sock *sk,
struct sk_buff *skb, struct net_device *indev,
struct net_device *outdev,
int (*okfn)(struct net *, struct sock *,
struct sk_buff *));
static inline struct nf_bridge_info *
nf_bridge_info_get(const struct sk_buff *skb)
{
return skb->nf_bridge;
}
unsigned int nf_bridge_encap_header_len(const struct sk_buff *skb);
static inline void nf_bridge_push_encap_header(struct sk_buff *skb)
{
unsigned int len = nf_bridge_encap_header_len(skb);
skb_push(skb, len);
skb->network_header -= len;
}
int br_nf_pre_routing_finish_bridge(struct net *net, struct sock *sk, struct sk_buff *skb);
static inline struct rtable *bridge_parent_rtable(const struct net_device *dev)
{
struct net_bridge_port *port;
port = br_port_get_rcu(dev);
return port ? &port->br->fake_rtable : NULL;
}
struct net_device *setup_pre_routing(struct sk_buff *skb);
#if IS_ENABLED(CONFIG_IPV6)
int br_validate_ipv6(struct net *net, struct sk_buff *skb);
unsigned int br_nf_pre_routing_ipv6(void *priv,
struct sk_buff *skb,
const struct nf_hook_state *state);
#else
static inline int br_validate_ipv6(struct net *net, struct sk_buff *skb)
{
return -1;
}
static inline unsigned int
br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct nf_hook_state *state)
{
return NF_ACCEPT;
}
#endif
#endif /* _BR_NETFILTER_H_ */
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