diff options
Diffstat (limited to 'include/linux/netfilter_bridge.h')
-rw-r--r-- | include/linux/netfilter_bridge.h | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h index fa0686500970..0a65a422587c 100644 --- a/include/linux/netfilter_bridge.h +++ b/include/linux/netfilter_bridge.h @@ -17,43 +17,58 @@ static inline void br_drop_fake_rtable(struct sk_buff *skb) skb_dst_drop(skb); } +static inline struct nf_bridge_info * +nf_bridge_info_get(const struct sk_buff *skb) +{ + return skb->nf_bridge; +} + +static inline bool nf_bridge_info_exists(const struct sk_buff *skb) +{ + return skb->nf_bridge != NULL; +} + static inline int nf_bridge_get_physinif(const struct sk_buff *skb) { - struct nf_bridge_info *nf_bridge; + const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); - if (skb->nf_bridge == NULL) + if (!nf_bridge) return 0; - nf_bridge = skb->nf_bridge; return nf_bridge->physindev ? nf_bridge->physindev->ifindex : 0; } static inline int nf_bridge_get_physoutif(const struct sk_buff *skb) { - struct nf_bridge_info *nf_bridge; + const struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb); - if (skb->nf_bridge == NULL) + if (!nf_bridge) return 0; - nf_bridge = skb->nf_bridge; return nf_bridge->physoutdev ? nf_bridge->physoutdev->ifindex : 0; } static inline struct net_device * nf_bridge_get_physindev(const struct sk_buff *skb) { - return skb->nf_bridge ? skb->nf_bridge->physindev : NULL; + 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) { - return skb->nf_bridge ? skb->nf_bridge->physoutdev : NULL; + 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) { - return skb->nf_bridge && skb->nf_bridge->in_prerouting; + 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) |