diff options
Diffstat (limited to 'include/net/netfilter/br_netfilter.h')
-rw-r--r-- | include/net/netfilter/br_netfilter.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/include/net/netfilter/br_netfilter.h b/include/net/netfilter/br_netfilter.h index 2aa6048..bab824b 100644 --- a/include/net/netfilter/br_netfilter.h +++ b/include/net/netfilter/br_netfilter.h @@ -1,6 +1,66 @@ #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); + +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 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); void br_netfilter_enable(void); +#if IS_ENABLED(CONFIG_IPV6) +int br_validate_ipv6(struct sk_buff *skb); +unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops, + struct sk_buff *skb, + const struct nf_hook_state *state); +#else +static inline int br_validate_ipv6(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_DROP; +} +#endif + #endif /* _BR_NETFILTER_H_ */ |