netfilter: Introduce egress hook

[platform/kernel/linux-starfive.git] / include / linux / netfilter_netdev.h

diff --git a/include/linux/netfilter_netdev.h b/include/linux/netfilter_netdev.h
index 49e2647..92d3611 100644 (file)
--- a/include/linux/netfilter_netdev.h
+++ b/include/linux/netfilter_netdev.h
@@ -47,6 +47,9 @@ static inline void nf_hook_netdev_init(struct net_device *dev)
 #ifdef CONFIG_NETFILTER_INGRESS
        RCU_INIT_POINTER(dev->nf_hooks_ingress, NULL);
 #endif
+#ifdef CONFIG_NETFILTER_EGRESS
+       RCU_INIT_POINTER(dev->nf_hooks_egress, NULL);
+#endif
 }
 
 #ifdef CONFIG_NETFILTER_INGRESS
@@ -72,4 +75,28 @@ static inline int nf_hook_ingress(struct sk_buff *skb)
        return 0;
 }
 #endif /* CONFIG_NETFILTER_INGRESS */
+
+#ifdef CONFIG_NETFILTER_EGRESS
+static inline bool nf_hook_egress_active(const struct sk_buff *skb)
+{
+       return nf_hook_netdev_active(NF_NETDEV_EGRESS,
+                                    skb->dev->nf_hooks_egress);
+}
+
+static inline int nf_hook_egress(struct sk_buff *skb)
+{
+       return nf_hook_netdev(skb, NF_NETDEV_EGRESS,
+                             skb->dev->nf_hooks_egress);
+}
+#else /* CONFIG_NETFILTER_EGRESS */
+static inline int nf_hook_egress_active(struct sk_buff *skb)
+{
+       return 0;
+}
+
+static inline int nf_hook_egress(struct sk_buff *skb)
+{
+       return 0;
+}
+#endif /* CONFIG_NETFILTER_EGRESS */
 #endif /* _NETFILTER_INGRESS_H_ */