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linux-headers-5.15.0-144
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View File Name :
netfilter_bridge.h
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __LINUX_BRIDGE_NETFILTER_H #define __LINUX_BRIDGE_NETFILTER_H #include <uapi/linux/netfilter_bridge.h> #include <linux/skbuff.h> struct nf_bridge_frag_data { char mac[ETH_HLEN]; bool vlan_present; u16 vlan_tci; __be16 vlan_proto; }; #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); static inline void br_drop_fake_rtable(struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); if (dst && (dst->flags & DST_FAKE_RTABLE)) skb_dst_drop(skb); } static inline struct nf_bridge_info * nf_bridge_info_get(const struct sk_buff *skb) { return skb_ext_find(skb, SKB_EXT_BRIDGE_NF); } static inline bool nf_bridge_info_exists(const struct sk_buff *skb) { return skb_ext_exist(skb, SKB_EXT_BRIDGE_NF); } static inline int nf_bridge_get_physinif(const struct sk_buff *skb) { const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); if (!nf_bridge) return 0; return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0; } static inline int nf_bridge_get_physoutif(const struct sk_buff *skb) { const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); if (!nf_bridge) return 0; return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0; } static inline struct net_device * nf_bridge_get_physindev(const struct sk_buff *skb) { const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); return nf_bridge ? nf_bridge->physindev : NULL; } static inline struct net_device * nf_bridge_get_physoutdev(const struct sk_buff *skb) { const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); return nf_bridge ? nf_bridge->physoutdev : NULL; } static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb) { const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); return nf_bridge && nf_bridge->in_prerouting; } #else #define br_drop_fake_rtable(skb) do { } while (0) static inline bool nf_bridge_in_prerouting(const struct sk_buff *skb) { return false; } #endif /* CONFIG_BRIDGE_NETFILTER */ #endif