Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for net-next:

1) Fix error path of nf_tables_updobj(), from Dan Carpenter.

2) Move large structure away from stack in the nf_tables offload
   infrastructure, from Arnd Bergmann.

3) Move indirect flow_block logic to nf_tables_offload.

4) Support for synproxy objects, from Fernando Fernandez Mancera.

5) Support for fwd and dup offload.

6) Add __nft_offload_get_chain() helper, this implicitly fixes missing
   mutex and check for offload flags in the indirect block support,
   patch from wenxu.

7) Remove rules on device unregistration, from wenxu. This includes
   two preparation patches to reuse nft_flow_offload_chain() and
   nft_flow_offload_rule().

Large batch from Jeremy Sowden to make a second pass to the
CONFIG_HEADER_TEST support and a bit of housekeeping:

8) Missing include guard in conntrack label header, from Jeremy Sowden.

9) A few coding style errors: trailing whitespace, incorrect indent in
   Kconfig, and semicolons at the end of function definitions.

10) Remove unused ipt_init() and ip6t_init() declarations.

11) Inline xt_hashlimit, ebt_802_3 and xt_physdev headers. They are
    only used once.

12) Update include directive in several netfilter files.

13) Remove unused include/net/netfilter/ipv6/nf_conntrack_icmpv6.h.

14) Move nf_ip6_ext_hdr() to include/linux/netfilter_ipv6.h

15) Move several synproxy structure definitions to nf_synproxy.h

16) Move nf_bridge_frag_data structure to include/linux/netfilter_bridge.h

17) Clean up static inline definitions in nf_conntrack_ecache.h.

18) Replace defined(CONFIG...) || defined(CONFIG...MODULE) with IS_ENABLED(CONFIG...).

19) Missing inline function conditional definitions based on Kconfig
    preferences in synproxy and nf_conntrack_timeout.

20) Update br_nf_pre_routing_ipv6() definition.

21) Move conntrack code in linux/skbuff.h to nf_conntrack headers.

22) Several patches to remove superfluous CONFIG_NETFILTER and
    CONFIG_NF_CONNTRACK checks in headers, coming from the initial batch
    support for CONFIG_HEADER_TEST for netfilter.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 20 insertions, 8 deletions

diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
index 7beb681e1ce5..aac42c28fe62 100644
--- a/include/linux/netfilter_ipv6.h
+++ b/include/linux/netfilter_ipv6.h
@@ -1,7 +1,7 @@
 /* IPv6-specific defines for netfilter. 
  * (C)1998 Rusty Russell -- This code is GPL.
  * (C)1999 David Jeffery
- *   this header was blatantly ripped from netfilter_ipv4.h 
+ *   this header was blatantly ripped from netfilter_ipv4.h
  *   it's amazing what adding a bunch of 6s can do =8^)
  */
 #ifndef __LINUX_IP6_NETFILTER_H
@@ -10,6 +10,18 @@
 #include <uapi/linux/netfilter_ipv6.h>
 #include <net/tcp.h>
 
+/* Check for an extension */
+static inline int
+nf_ip6_ext_hdr(u8 nexthdr)
+{	return (nexthdr == IPPROTO_HOPOPTS) ||
+	       (nexthdr == IPPROTO_ROUTING) ||
+	       (nexthdr == IPPROTO_FRAGMENT) ||
+	       (nexthdr == IPPROTO_ESP) ||
+	       (nexthdr == IPPROTO_AH) ||
+	       (nexthdr == IPPROTO_NONE) ||
+	       (nexthdr == IPPROTO_DSTOPTS);
+}
+
 /* Extra routing may needed on local out, as the QUEUE target never returns
  * control to the table.
  */
@@ -20,7 +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
@@ -49,9 +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
 };
@@ -123,16 +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)