netfilter: add missing includes to a number of header-files.

A number of netfilter header-files used declarations and definitions
from other headers without including them.  Added include directives to
make those declarations and definitions available.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

include/net/netfilter/br_netfilter.h

@@ -2,6 +2,8 @@
 #ifndef _BR_NETFILTER_H_
 #define _BR_NETFILTER_H_
 
+#include <linux/netfilter.h>
+
 #include "../../../net/bridge/br_private.h"
 
 static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)

include/net/netfilter/ipv4/nf_dup_ipv4.h

@@ -2,6 +2,9 @@
 #ifndef _NF_DUP_IPV4_H_
 #define _NF_DUP_IPV4_H_
 
+#include <linux/skbuff.h>
+#include <uapi/linux/in.h>
+
 void nf_dup_ipv4(struct net *net, struct sk_buff *skb, unsigned int hooknum,
 		 const struct in_addr *gw, int oif);
 

include/net/netfilter/ipv6/nf_defrag_ipv6.h

@@ -2,7 +2,9 @@
 #ifndef _NF_DEFRAG_IPV6_H
 #define _NF_DEFRAG_IPV6_H
 
-struct net;
+#include <linux/skbuff.h>
+#include <linux/types.h>
+
 int nf_defrag_ipv6_enable(struct net *);
 
 int nf_ct_frag6_init(void);

include/net/netfilter/ipv6/nf_dup_ipv6.h

@@ -2,6 +2,8 @@
 #ifndef _NF_DUP_IPV6_H_
 #define _NF_DUP_IPV6_H_
 
+#include <linux/skbuff.h>
+
 void nf_dup_ipv6(struct net *net, struct sk_buff *skb, unsigned int hooknum,
 		 const struct in6_addr *gw, int oif);
 

include/net/netfilter/nf_conntrack_bridge.h

@@ -1,6 +1,10 @@
 #ifndef NF_CONNTRACK_BRIDGE_
 #define NF_CONNTRACK_BRIDGE_
 
+#include <linux/module.h>
+#include <linux/types.h>
+#include <uapi/linux/if_ether.h>
+
 struct nf_ct_bridge_info {
 	struct nf_hook_ops	*ops;
 	unsigned int		ops_size;

include/net/netfilter/nf_conntrack_count.h

@@ -2,6 +2,9 @@
 #define _NF_CONNTRACK_COUNT_H
 
 #include <linux/list.h>
+#include <linux/spinlock.h>
+#include <net/netfilter/nf_conntrack_tuple.h>
+#include <net/netfilter/nf_conntrack_zones.h>
 
 struct nf_conncount_data;
 

include/net/netfilter/nf_dup_netdev.h

@@ -2,6 +2,8 @@
 #ifndef _NF_DUP_NETDEV_H_
 #define _NF_DUP_NETDEV_H_
 
+#include <net/netfilter/nf_tables.h>
+
 void nf_dup_netdev_egress(const struct nft_pktinfo *pkt, int oif);
 void nf_fwd_netdev_egress(const struct nft_pktinfo *pkt, int oif);
 

include/net/netfilter/nf_flow_table.h

@@ -6,6 +6,7 @@
 #include <linux/netdevice.h>
 #include <linux/rhashtable-types.h>
 #include <linux/rcupdate.h>
+#include <linux/netfilter.h>
 #include <linux/netfilter/nf_conntrack_tuple_common.h>
 #include <net/dst.h>
 

include/net/netfilter/nf_nat_helper.h

@@ -3,9 +3,9 @@
 #define _NF_NAT_HELPER_H
 /* NAT protocol helper routines. */
 
+#include <linux/skbuff.h>
 #include <net/netfilter/nf_conntrack.h>
-
-struct sk_buff;
+#include <net/netfilter/nf_conntrack_expect.h>
 
 /* These return true or false. */
 bool __nf_nat_mangle_tcp_packet(struct sk_buff *skb, struct nf_conn *ct,

include/net/netfilter/nf_nat_redirect.h

@@ -2,6 +2,9 @@
 #ifndef _NF_NAT_REDIRECT_H_
 #define _NF_NAT_REDIRECT_H_
 
+#include <linux/skbuff.h>
+#include <uapi/linux/netfilter/nf_nat.h>
+
 unsigned int
 nf_nat_redirect_ipv4(struct sk_buff *skb,
 		     const struct nf_nat_ipv4_multi_range_compat *mr,

include/net/netfilter/nf_queue.h

@@ -5,6 +5,8 @@
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/jhash.h>
+#include <linux/netfilter.h>
+#include <linux/skbuff.h>
 
 /* Each queued (to userspace) skbuff has one of these. */
 struct nf_queue_entry {

include/net/netfilter/nf_reject.h

@@ -2,6 +2,9 @@
 #ifndef _NF_REJECT_H
 #define _NF_REJECT_H
 
+#include <linux/types.h>
+#include <uapi/linux/in.h>
+
 static inline bool nf_reject_verify_csum(__u8 proto)
 {
 	/* Skip protocols that don't use 16-bit one's complement checksum

include/net/netfilter/nf_tables_ipv6.h

@@ -4,6 +4,7 @@
 
 #include <linux/netfilter_ipv6/ip6_tables.h>
 #include <net/ipv6.h>
+#include <net/netfilter/nf_tables.h>
 
 static inline void nft_set_pktinfo_ipv6(struct nft_pktinfo *pkt,
 					struct sk_buff *skb)

include/net/netfilter/nft_fib.h

@@ -2,6 +2,8 @@
 #ifndef _NFT_FIB_H_
 #define _NFT_FIB_H_
 
+#include <net/netfilter/nf_tables.h>
+
 struct nft_fib {
 	enum nft_registers	dreg:8;
 	u8			result;

include/net/netfilter/nft_meta.h

@@ -2,6 +2,8 @@
 #ifndef _NFT_META_H_
 #define _NFT_META_H_
 
+#include <net/netfilter/nf_tables.h>
+
 struct nft_meta {
 	enum nft_meta_keys	key:8;
 	union {

include/net/netfilter/nft_reject.h

@@ -2,6 +2,11 @@
 #ifndef _NFT_REJECT_H_
 #define _NFT_REJECT_H_
 
+#include <linux/types.h>
+#include <net/netlink.h>
+#include <net/netfilter/nf_tables.h>
+#include <uapi/linux/netfilter/nf_tables.h>
+
 struct nft_reject {
 	enum nft_reject_types	type:8;
 	u8			icmp_code;