3 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f67258f057ca..c1ef749b6f9f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2297,6 +2297,9 @@ struct packet_type {
 					 struct net_device *,
 					 struct packet_type *,
 					 struct net_device *);
+	void			(*list_func) (struct list_head *,
+					      struct packet_type *,
+					      struct net_device *);
 	bool			(*id_match)(struct packet_type *ptype,
 					    struct sock *sk);
 	void			*af_packet_priv;
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index dd2052f0efb7..5a5e0a2ab2a3 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -288,6 +288,20 @@ NF_HOOK(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk, struct
 	return ret;
 }
 
+static inline void
+NF_HOOK_LIST(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk,
+	     struct list_head *head, struct net_device *in, struct net_device *out,
+	     int (*okfn)(struct net *, struct sock *, struct sk_buff *))
+{
+	struct sk_buff *skb, *next;
+
+	list_for_each_entry_safe(skb, next, head, list) {
+		int ret = nf_hook(pf, hook, net, sk, skb, in, out, okfn);
+		if (ret != 1)
+			list_del(&skb->list);
+	}
+}
+
 /* Call setsockopt() */
 int nf_setsockopt(struct sock *sk, u_int8_t pf, int optval, char __user *opt,
 		  unsigned int len);
@@ -369,6 +383,14 @@ NF_HOOK(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk,
 	return okfn(net, sk, skb);
 }
 
+static inline void
+NF_HOOK_LIST(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk,
+	     struct list_head *head, struct net_device *in, struct net_device *out,
+	     int (*okfn)(struct net *, struct sock *, struct sk_buff *))
+{
+	/* nothing to do */
+}
+
 static inline int nf_hook(u_int8_t pf, unsigned int hook, struct net *net,
 			  struct sock *sk, struct sk_buff *skb,
 			  struct net_device *indev, struct net_device *outdev,
diff --git a/include/net/ip.h b/include/net/ip.h
index 09da79d8ceea..99d1b835d2aa 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -138,6 +138,8 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk,
 			  struct ip_options_rcu *opt);
 int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
 	   struct net_device *orig_dev);
+void ip_list_rcv(struct list_head *head, struct packet_type *pt,
+		 struct net_device *orig_dev);
 int ip_local_deliver(struct sk_buff *skb);
 int ip_mr_input(struct sk_buff *skb);
 int ip_output(struct net *net, struct sock *sk, struct sk_buff *skb);