netfilter: move nf_bridge_frag_data struct definition to a more appropriate header.

There is a struct definition function in nf_conntrack_bridge.h which is
not specific to conntrack and is used elswhere in netfilter.  Move it
into netfilter_bridge.h.
Signed-off-by: NJeremy Sowden <jeremy@azazel.net>
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>

include/linux/netfilter_bridge.h

@@ -5,6 +5,13 @@
 #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);

include/linux/netfilter_ipv6.h

@@ -32,7 +32,7 @@ struct ip6_rt_info {
 };
 
 struct nf_queue_entry;
-struct nf_ct_bridge_frag_data;
+struct nf_bridge_frag_data;
 
 /*
  * Hook functions for ipv6 to allow xt_* modules to be built-in even
@@ -61,9 +61,9 @@ struct nf_ipv6_ops {
 	int (*br_defrag)(struct net *net, struct sk_buff *skb, u32 user);
 	int (*br_fragment)(struct net *net, struct sock *sk,
 			   struct sk_buff *skb,
-			   struct nf_ct_bridge_frag_data *data,
+			   struct nf_bridge_frag_data *data,
 			   int (*output)(struct net *, struct sock *sk,
-					 const struct nf_ct_bridge_frag_data *data,
+					 const struct nf_bridge_frag_data *data,
 					 struct sk_buff *));
 #endif
 };
@@ -135,16 +135,16 @@ static inline int nf_ipv6_br_defrag(struct net *net, struct sk_buff *skb,
 }
 
 int br_ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
-		    struct nf_ct_bridge_frag_data *data,
+		    struct nf_bridge_frag_data *data,
 		    int (*output)(struct net *, struct sock *sk,
-				  const struct nf_ct_bridge_frag_data *data,
+				  const struct nf_bridge_frag_data *data,
 				  struct sk_buff *));
 
 static inline int nf_br_ip6_fragment(struct net *net, struct sock *sk,
 				     struct sk_buff *skb,
-				     struct nf_ct_bridge_frag_data *data,
+				     struct nf_bridge_frag_data *data,
 				     int (*output)(struct net *, struct sock *sk,
-						   const struct nf_ct_bridge_frag_data *data,
+						   const struct nf_bridge_frag_data *data,
 						   struct sk_buff *))
 {
 #if IS_MODULE(CONFIG_IPV6)

include/net/netfilter/nf_conntrack_bridge.h

@@ -16,11 +16,4 @@ struct nf_ct_bridge_info {
 void nf_ct_bridge_register(struct nf_ct_bridge_info *info);
 void nf_ct_bridge_unregister(struct nf_ct_bridge_info *info);
 
-struct nf_ct_bridge_frag_data {
-	char	mac[ETH_HLEN];
-	bool	vlan_present;
-	u16	vlan_tci;
-	__be16	vlan_proto;
-};
-
 #endif

net/bridge/netfilter/nf_conntrack_bridge.c

@@ -26,9 +26,9 @@
  */
 static int nf_br_ip_fragment(struct net *net, struct sock *sk,
 			     struct sk_buff *skb,
-			     struct nf_ct_bridge_frag_data *data,
+			     struct nf_bridge_frag_data *data,
 			     int (*output)(struct net *, struct sock *sk,
-					   const struct nf_ct_bridge_frag_data *data,
+					   const struct nf_bridge_frag_data *data,
 					   struct sk_buff *))
 {
 	int frag_max_size = BR_INPUT_SKB_CB(skb)->frag_max_size;
@@ -278,7 +278,7 @@ static unsigned int nf_ct_bridge_pre(void *priv, struct sk_buff *skb,
 }
 
 static void nf_ct_bridge_frag_save(struct sk_buff *skb,
-				   struct nf_ct_bridge_frag_data *data)
+				   struct nf_bridge_frag_data *data)
 {
 	if (skb_vlan_tag_present(skb)) {
 		data->vlan_present = true;
@@ -293,10 +293,10 @@ static void nf_ct_bridge_frag_save(struct sk_buff *skb,
 static unsigned int
 nf_ct_bridge_refrag(struct sk_buff *skb, const struct nf_hook_state *state,
 		    int (*output)(struct net *, struct sock *sk,
-				  const struct nf_ct_bridge_frag_data *data,
+				  const struct nf_bridge_frag_data *data,
 				  struct sk_buff *))
 {
-	struct nf_ct_bridge_frag_data data;
+	struct nf_bridge_frag_data data;
 
 	if (!BR_INPUT_SKB_CB(skb)->frag_max_size)
 		return NF_ACCEPT;
@@ -319,7 +319,7 @@ nf_ct_bridge_refrag(struct sk_buff *skb, const struct nf_hook_state *state,
 
 /* Actually only slow path refragmentation needs this. */
 static int nf_ct_bridge_frag_restore(struct sk_buff *skb,
-				     const struct nf_ct_bridge_frag_data *data)
+				     const struct nf_bridge_frag_data *data)
 {
 	int err;
 
@@ -340,7 +340,7 @@ static int nf_ct_bridge_frag_restore(struct sk_buff *skb,
 }
 
 static int nf_ct_bridge_refrag_post(struct net *net, struct sock *sk,
-				    const struct nf_ct_bridge_frag_data *data,
+				    const struct nf_bridge_frag_data *data,
 				    struct sk_buff *skb)
 {
 	int err;

net/ipv6/netfilter.c

@@ -113,9 +113,9 @@ int __nf_ip6_route(struct net *net, struct dst_entry **dst,
 EXPORT_SYMBOL_GPL(__nf_ip6_route);
 
 int br_ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
-		    struct nf_ct_bridge_frag_data *data,
+		    struct nf_bridge_frag_data *data,
 		    int (*output)(struct net *, struct sock *sk,
-				  const struct nf_ct_bridge_frag_data *data,
+				  const struct nf_bridge_frag_data *data,
 				  struct sk_buff *))
 {
 	int frag_max_size = BR_INPUT_SKB_CB(skb)->frag_max_size;