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

Pablo Neira Ayuso says:

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

The following batch contains netfilter updates for net-next. Basically,
enhancements for xt_recent, skip zeroing of timer in conntrack, fix
linking problem with recent redirect support for nf_tables, ipset
updates and a couple of cleanups. More specifically, they are:

1) Rise maximum number per IP address to be remembered in xt_recent
   while retaining backward compatibility, from Florian Westphal.

2) Skip zeroing timer area in nf_conn objects, also from Florian.

3) Inspect IPv4 and IPv6 traffic from the bridge to allow filtering using
   using meta l4proto and transport layer header, from Alvaro Neira.

4) Fix linking problems in the new redirect support when CONFIG_IPV6=n
   and IP6_NF_IPTABLES=n.

And ipset updates from Jozsef Kadlecsik:

5) Support updating element extensions when the set is full (fixes
   netfilter bugzilla id 880).

6) Fix set match with 32-bits userspace / 64-bits kernel.

7) Indicate explicitly when /0 networks are supported in ipset.

8) Simplify cidr handling for hash:*net* types.

9) Allocate the proper size of memory when /0 networks are supported.

10) Explicitly add padding elements to hash:net,net and hash:net,port,
    because the elements must be u32 sized for the used hash function.

Jozsef is also cooking ipset RCU conversion which should land soon if
they reach the merge window in time.
====================

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

7 files changed, 46 insertions, 26 deletions

diff --git a/include/net/netfilter/ipv4/nf_nat_redirect.h b/include/net/netfilter/ipv4/nf_nat_redirect.h
deleted file mode 100644
index 19e1df3a0a4d..000000000000
--- a/include/net/netfilter/ipv4/nf_nat_redirect.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _NF_NAT_REDIRECT_IPV4_H_
-#define _NF_NAT_REDIRECT_IPV4_H_
-
-unsigned int
-nf_nat_redirect_ipv4(struct sk_buff *skb,
-                     const struct nf_nat_ipv4_multi_range_compat *mr,
-                     unsigned int hooknum);
-
-#endif /* _NF_NAT_REDIRECT_IPV4_H_ */
diff --git a/include/net/netfilter/ipv6/nf_nat_redirect.h b/include/net/netfilter/ipv6/nf_nat_redirect.h
deleted file mode 100644
index 1ebdffc461cc..000000000000
--- a/include/net/netfilter/ipv6/nf_nat_redirect.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _NF_NAT_REDIRECT_IPV6_H_
-#define _NF_NAT_REDIRECT_IPV6_H_
-
-unsigned int
-nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
-                     unsigned int hooknum);
-
-#endif /* _NF_NAT_REDIRECT_IPV6_H_ */
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index c8a7db605e03..f0daed2b54d1 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -92,12 +92,18 @@ struct nf_conn {
         /* Have we seen traffic both ways yet? (bitset) */
         unsigned long status;
 
-        /* If we were expected by an expectation, this will be it */
-        struct nf_conn *master;
-
         /* Timer function; drops refcnt when it goes off. */
         struct timer_list timeout;
 
+#ifdef CONFIG_NET_NS
+        struct net *ct_net;
+#endif
+        /* all members below initialized via memset */
+        u8 __nfct_init_offset[0];
+
+        /* If we were expected by an expectation, this will be it */
+        struct nf_conn *master;
+
 #if defined(CONFIG_NF_CONNTRACK_MARK)
         u_int32_t mark;
 #endif
@@ -108,9 +114,6 @@ struct nf_conn {
 
         /* Extensions */
         struct nf_ct_ext *ext;
-#ifdef CONFIG_NET_NS
-        struct net *ct_net;
-#endif
 
         /* Storage reserved for other modules, must be the last member */
         union nf_conntrack_proto proto;
diff --git a/include/net/netfilter/nf_nat_redirect.h b/include/net/netfilter/nf_nat_redirect.h
new file mode 100644
index 000000000000..73b729543309
--- /dev/null
+++ b/include/net/netfilter/nf_nat_redirect.h
@@ -0,0 +1,12 @@
+#ifndef _NF_NAT_REDIRECT_H_
+#define _NF_NAT_REDIRECT_H_
+
+unsigned int
+nf_nat_redirect_ipv4(struct sk_buff *skb,
+                     const struct nf_nat_ipv4_multi_range_compat *mr,
+                     unsigned int hooknum);
+unsigned int
+nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range,
+                     unsigned int hooknum);
+
+#endif /* _NF_NAT_REDIRECT_H_ */
diff --git a/include/net/netfilter/nf_tables_bridge.h b/include/net/netfilter/nf_tables_bridge.h
new file mode 100644
index 000000000000..511fb79f6dad
--- /dev/null
+++ b/include/net/netfilter/nf_tables_bridge.h
@@ -0,0 +1,7 @@
+#ifndef _NET_NF_TABLES_BRIDGE_H
+#define _NET_NF_TABLES_BRIDGE_H
+
+int nft_bridge_iphdr_validate(struct sk_buff *skb);
+int nft_bridge_ip6hdr_validate(struct sk_buff *skb);
+
+#endif /* _NET_NF_TABLES_BRIDGE_H */
diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index ca03119111a2..5ab4e60894cf 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -256,11 +256,17 @@ enum {
         IPSET_COUNTER_GT,
 };
 
-struct ip_set_counter_match {
+/* Backward compatibility for set match v3 */
+struct ip_set_counter_match0 {
         __u8 op;
         __u64 value;
 };
 
+struct ip_set_counter_match {
+        __aligned_u64 value;
+        __u8 op;
+};
+
 /* Interface to iptables/ip6tables */
 
 #define SO_IP_SET               83
diff --git a/include/uapi/linux/netfilter/xt_set.h b/include/uapi/linux/netfilter/xt_set.h
index d6a1df1f2947..d4e02348384c 100644
--- a/include/uapi/linux/netfilter/xt_set.h
+++ b/include/uapi/linux/netfilter/xt_set.h
@@ -66,8 +66,8 @@ struct xt_set_info_target_v2 {
 
 struct xt_set_info_match_v3 {
         struct xt_set_info match_set;
-        struct ip_set_counter_match packets;
-        struct ip_set_counter_match bytes;
+        struct ip_set_counter_match0 packets;
+        struct ip_set_counter_match0 bytes;
         __u32 flags;
 };
 
@@ -81,4 +81,13 @@ struct xt_set_info_target_v3 {
         __u32 timeout;
 };
 
+/* Revision 4 match */
+
+struct xt_set_info_match_v4 {
+        struct xt_set_info match_set;
+        struct ip_set_counter_match packets;
+        struct ip_set_counter_match bytes;
+        __u32 flags;
+};
+
 #endif /*_XT_SET_H*/