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

Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

The following patchset contains Netfilter/IPVS updates for net-next:

1) Add .release_ops to properly unroll .select_ops, use it from nft_compat.
   After this change, we can remove list of extensions too to simplify this
   codebase.

2) Update amanda conntrack helper to support v3.4, from Florian Tham.

3) Get rid of the obsolete BUGPRINT macro in ebtables, from
   Florian Westphal.

4) Merge IPv4 and IPv6 masquerading infrastructure into one single module.
   From Florian Westphal.

5) Patchset to remove nf_nat_l3proto structure to get rid of
   indirections, from Florian Westphal.

6) Skip unnecessary conntrack timeout updates in case the value is
   still the same, also from Florian Westphal.

7) Remove unnecessary 'fall through' comments in empty switch cases,
   from Li RongQing.

8) Fix lookup to fixed size hashtable sets on big endian with 32-bit keys.

9) Incorrect logic to deactivate path of fixed size hashtable sets,
   element was being tested to self.

10) Remove nft_hash_key(), the bitmap set is always selected for 16-bit
    keys.

11) Use boolean whenever possible in IPVS codebase, from Andrea Claudi.

12) Enter close state in conntrack if RST matches exact sequence number,
    from Florian Westphal.

13) Initialize dst_cache in tunnel extension, from wenxu.

14) Pass protocol as u16 to xt_check_match and xt_check_target, from
    Li RongQing.

15) SCTP header is granted to be in a linear area from IPVS NAT handler,
    from Xin Long.

16) Don't steal packets coming from slave VRF device from the
    ip_sabotage_in() path, from David Ahern.

17) Fix unsafe update of basechain stats, from Li RongQing.

18) Make sure CONNTRACK_LOCKS is power of 2 to let compiler optimize
    modulo operation as bitwise AND, from Li RongQing.

19) Use device_attribute instead of internal definition in the IDLETIMER
    target, from Sami Tolvanen.

20) Merge redir, masq and IPv4/IPv6 NAT chain types, from Florian Westphal.
====================

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

8 files changed, 4 insertions, 985 deletions

diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 339d0762b027..ddc99a1653aa 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -31,34 +31,6 @@ config NFT_CHAIN_ROUTE_IPV6
 	  fields such as the source, destination, flowlabel, hop-limit and
 	  the packet mark.
 
-if NF_NAT_IPV6
-
-config NFT_CHAIN_NAT_IPV6
-	tristate "IPv6 nf_tables nat chain support"
-	help
-	  This option enables the "nat" chain for IPv6 in nf_tables. This
-	  chain type is used to perform Network Address Translation (NAT)
-	  packet transformations such as the source, destination address and
-	  source and destination ports.
-
-config NFT_MASQ_IPV6
-	tristate "IPv6 masquerade support for nf_tables"
-	depends on NFT_MASQ
-	select NF_NAT_MASQUERADE_IPV6
-	help
-	  This is the expression that provides IPv4 masquerading support for
-	  nf_tables.
-
-config NFT_REDIR_IPV6
-	tristate "IPv6 redirect support for nf_tables"
-	depends on NFT_REDIR
-	select NF_NAT_REDIRECT
-	help
-	  This is the expression that provides IPv4 redirect support for
-	  nf_tables.
-
-endif # NF_NAT_IPV6
-
 config NFT_REJECT_IPV6
 	select NF_REJECT_IPV6
 	default NFT_REJECT
@@ -106,23 +78,6 @@ config NF_LOG_IPV6
 	default m if NETFILTER_ADVANCED=n
 	select NF_LOG_COMMON
 
-config NF_NAT_IPV6
-	tristate "IPv6 NAT"
-	depends on NF_CONNTRACK
-	depends on NETFILTER_ADVANCED
-	select NF_NAT
-	help
-	  The IPv6 NAT option allows masquerading, port forwarding and other
-	  forms of full Network Address Port Translation. This can be
-	  controlled by iptables or nft.
-
-if NF_NAT_IPV6
-
-config NF_NAT_MASQUERADE_IPV6
-	bool
-
-endif # NF_NAT_IPV6
-
 config IP6_NF_IPTABLES
 	tristate "IP6 tables support (required for filtering)"
 	depends on INET && IPV6
@@ -311,7 +266,6 @@ config IP6_NF_NAT
 	depends on NF_CONNTRACK
 	depends on NETFILTER_ADVANCED
 	select NF_NAT
-	select NF_NAT_IPV6
 	select NETFILTER_XT_NAT
 	help
 	  This enables the `nat' table in ip6tables. This allows masquerading,
@@ -324,7 +278,7 @@ if IP6_NF_NAT
 
 config IP6_NF_TARGET_MASQUERADE
 	tristate "MASQUERADE target support"
-	select NF_NAT_MASQUERADE_IPV6
+	select NF_NAT_MASQUERADE
 	help
 	  Masquerading is a special case of NAT: all outgoing connections are
 	  changed to seem to come from a particular interface's address, and
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index 9ea43d5256e0..3853c648ebaa 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -11,10 +11,6 @@ obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o
 obj-$(CONFIG_IP6_NF_SECURITY) += ip6table_security.o
 obj-$(CONFIG_IP6_NF_NAT) += ip6table_nat.o
 
-nf_nat_ipv6-y		:= nf_nat_l3proto_ipv6.o
-nf_nat_ipv6-$(CONFIG_NF_NAT_MASQUERADE_IPV6) += nf_nat_masquerade_ipv6.o
-obj-$(CONFIG_NF_NAT_IPV6) += nf_nat_ipv6.o
-
 # defrag
 nf_defrag_ipv6-y := nf_defrag_ipv6_hooks.o nf_conntrack_reasm.o
 obj-$(CONFIG_NF_DEFRAG_IPV6) += nf_defrag_ipv6.o
@@ -32,10 +28,7 @@ obj-$(CONFIG_NF_DUP_IPV6) += nf_dup_ipv6.o
 
 # nf_tables
 obj-$(CONFIG_NFT_CHAIN_ROUTE_IPV6) += nft_chain_route_ipv6.o
-obj-$(CONFIG_NFT_CHAIN_NAT_IPV6) += nft_chain_nat_ipv6.o
 obj-$(CONFIG_NFT_REJECT_IPV6) += nft_reject_ipv6.o
-obj-$(CONFIG_NFT_MASQ_IPV6) += nft_masq_ipv6.o
-obj-$(CONFIG_NFT_REDIR_IPV6) += nft_redir_ipv6.o
 obj-$(CONFIG_NFT_DUP_IPV6) += nft_dup_ipv6.o
 obj-$(CONFIG_NFT_FIB_IPV6) += nft_fib_ipv6.o
 
diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c
index 67ba70ab9f5c..3e1fab9d7503 100644
--- a/net/ipv6/netfilter/ip6table_nat.c
+++ b/net/ipv6/netfilter/ip6table_nat.c
@@ -17,8 +17,6 @@
 #include <net/ipv6.h>
 
 #include <net/netfilter/nf_nat.h>
-#include <net/netfilter/nf_nat_core.h>
-#include <net/netfilter/nf_nat_l3proto.h>
 
 static int __net_init ip6table_nat_table_init(struct net *net);
 
@@ -72,10 +70,10 @@ static int ip6t_nat_register_lookups(struct net *net)
 	int i, ret;
 
 	for (i = 0; i < ARRAY_SIZE(nf_nat_ipv6_ops); i++) {
-		ret = nf_nat_l3proto_ipv6_register_fn(net, &nf_nat_ipv6_ops[i]);
+		ret = nf_nat_ipv6_register_fn(net, &nf_nat_ipv6_ops[i]);
 		if (ret) {
 			while (i)
-				nf_nat_l3proto_ipv6_unregister_fn(net, &nf_nat_ipv6_ops[--i]);
+				nf_nat_ipv6_unregister_fn(net, &nf_nat_ipv6_ops[--i]);
 
 			return ret;
 		}
@@ -89,7 +87,7 @@ static void ip6t_nat_unregister_lookups(struct net *net)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(nf_nat_ipv6_ops); i++)
-		nf_nat_l3proto_ipv6_unregister_fn(net, &nf_nat_ipv6_ops[i]);
+		nf_nat_ipv6_unregister_fn(net, &nf_nat_ipv6_ops[i]);
 }
 
 static int __net_init ip6table_nat_table_init(struct net *net)
diff --git a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c b/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
deleted file mode 100644
index 490bfd3c9162..000000000000
--- a/net/ipv6/netfilter/nf_nat_l3proto_ipv6.c
+++ /dev/null
@@ -1,427 +0,0 @@
-/*
- * Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Development of IPv6 NAT funded by Astaro.
- */
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/ipv6.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv6.h>
-#include <net/secure_seq.h>
-#include <net/checksum.h>
-#include <net/ip6_checksum.h>
-#include <net/ip6_route.h>
-#include <net/xfrm.h>
-#include <net/ipv6.h>
-
-#include <net/netfilter/nf_conntrack_core.h>
-#include <net/netfilter/nf_conntrack.h>
-#include <net/netfilter/nf_nat_core.h>
-#include <net/netfilter/nf_nat_l3proto.h>
-#include <net/netfilter/nf_nat_l4proto.h>
-
-static const struct nf_nat_l3proto nf_nat_l3proto_ipv6;
-
-#ifdef CONFIG_XFRM
-static void nf_nat_ipv6_decode_session(struct sk_buff *skb,
-				       const struct nf_conn *ct,
-				       enum ip_conntrack_dir dir,
-				       unsigned long statusbit,
-				       struct flowi *fl)
-{
-	const struct nf_conntrack_tuple *t = &ct->tuplehash[dir].tuple;
-	struct flowi6 *fl6 = &fl->u.ip6;
-
-	if (ct->status & statusbit) {
-		fl6->daddr = t->dst.u3.in6;
-		if (t->dst.protonum == IPPROTO_TCP ||
-		    t->dst.protonum == IPPROTO_UDP ||
-		    t->dst.protonum == IPPROTO_UDPLITE ||
-		    t->dst.protonum == IPPROTO_DCCP ||
-		    t->dst.protonum == IPPROTO_SCTP)
-			fl6->fl6_dport = t->dst.u.all;
-	}
-
-	statusbit ^= IPS_NAT_MASK;
-
-	if (ct->status & statusbit) {
-		fl6->saddr = t->src.u3.in6;
-		if (t->dst.protonum == IPPROTO_TCP ||
-		    t->dst.protonum == IPPROTO_UDP ||
-		    t->dst.protonum == IPPROTO_UDPLITE ||
-		    t->dst.protonum == IPPROTO_DCCP ||
-		    t->dst.protonum == IPPROTO_SCTP)
-			fl6->fl6_sport = t->src.u.all;
-	}
-}
-#endif
-
-static bool nf_nat_ipv6_manip_pkt(struct sk_buff *skb,
-				  unsigned int iphdroff,
-				  const struct nf_conntrack_tuple *target,
-				  enum nf_nat_manip_type maniptype)
-{
-	struct ipv6hdr *ipv6h;
-	__be16 frag_off;
-	int hdroff;
-	u8 nexthdr;
-
-	if (!skb_make_writable(skb, iphdroff + sizeof(*ipv6h)))
-		return false;
-
-	ipv6h = (void *)skb->data + iphdroff;
-	nexthdr = ipv6h->nexthdr;
-	hdroff = ipv6_skip_exthdr(skb, iphdroff + sizeof(*ipv6h),
-				  &nexthdr, &frag_off);
-	if (hdroff < 0)
-		goto manip_addr;
-
-	if ((frag_off & htons(~0x7)) == 0 &&
-	    !nf_nat_l4proto_manip_pkt(skb, &nf_nat_l3proto_ipv6, iphdroff, hdroff,
-				      target, maniptype))
-		return false;
-
-	/* must reload, offset might have changed */
-	ipv6h = (void *)skb->data + iphdroff;
-
-manip_addr:
-	if (maniptype == NF_NAT_MANIP_SRC)
-		ipv6h->saddr = target->src.u3.in6;
-	else
-		ipv6h->daddr = target->dst.u3.in6;
-
-	return true;
-}
-
-static void nf_nat_ipv6_csum_update(struct sk_buff *skb,
-				    unsigned int iphdroff, __sum16 *check,
-				    const struct nf_conntrack_tuple *t,
-				    enum nf_nat_manip_type maniptype)
-{
-	const struct ipv6hdr *ipv6h = (struct ipv6hdr *)(skb->data + iphdroff);
-	const struct in6_addr *oldip, *newip;
-
-	if (maniptype == NF_NAT_MANIP_SRC) {
-		oldip = &ipv6h->saddr;
-		newip = &t->src.u3.in6;
-	} else {
-		oldip = &ipv6h->daddr;
-		newip = &t->dst.u3.in6;
-	}
-	inet_proto_csum_replace16(check, skb, oldip->s6_addr32,
-				  newip->s6_addr32, true);
-}
-
-static void nf_nat_ipv6_csum_recalc(struct sk_buff *skb,
-				    u8 proto, void *data, __sum16 *check,
-				    int datalen, int oldlen)
-{
-	if (skb->ip_summed != CHECKSUM_PARTIAL) {
-		const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
-
-		skb->ip_summed = CHECKSUM_PARTIAL;
-		skb->csum_start = skb_headroom(skb) + skb_network_offset(skb) +
-			(data - (void *)skb->data);
-		skb->csum_offset = (void *)check - data;
-		*check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr,
-					  datalen, proto, 0);
-	} else
-		inet_proto_csum_replace2(check, skb,
-					 htons(oldlen), htons(datalen), true);
-}
-
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
-static int nf_nat_ipv6_nlattr_to_range(struct nlattr *tb[],
-				       struct nf_nat_range2 *range)
-{
-	if (tb[CTA_NAT_V6_MINIP]) {
-		nla_memcpy(&range->min_addr.ip6, tb[CTA_NAT_V6_MINIP],
-			   sizeof(struct in6_addr));
-		range->flags |= NF_NAT_RANGE_MAP_IPS;
-	}
-
-	if (tb[CTA_NAT_V6_MAXIP])
-		nla_memcpy(&range->max_addr.ip6, tb[CTA_NAT_V6_MAXIP],
-			   sizeof(struct in6_addr));
-	else
-		range->max_addr = range->min_addr;
-
-	return 0;
-}
-#endif
-
-static const struct nf_nat_l3proto nf_nat_l3proto_ipv6 = {
-	.l3proto		= NFPROTO_IPV6,
-	.manip_pkt		= nf_nat_ipv6_manip_pkt,
-	.csum_update		= nf_nat_ipv6_csum_update,
-	.csum_recalc		= nf_nat_ipv6_csum_recalc,
-#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
-	.nlattr_to_range	= nf_nat_ipv6_nlattr_to_range,
-#endif
-#ifdef CONFIG_XFRM
-	.decode_session	= nf_nat_ipv6_decode_session,
-#endif
-};
-
-int nf_nat_icmpv6_reply_translation(struct sk_buff *skb,
-				    struct nf_conn *ct,
-				    enum ip_conntrack_info ctinfo,
-				    unsigned int hooknum,
-				    unsigned int hdrlen)
-{
-	struct {
-		struct icmp6hdr	icmp6;
-		struct ipv6hdr	ip6;
-	} *inside;
-	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-	enum nf_nat_manip_type manip = HOOK2MANIP(hooknum);
-	struct nf_conntrack_tuple target;
-	unsigned long statusbit;
-
-	WARN_ON(ctinfo != IP_CT_RELATED && ctinfo != IP_CT_RELATED_REPLY);
-
-	if (!skb_make_writable(skb, hdrlen + sizeof(*inside)))
-		return 0;
-	if (nf_ip6_checksum(skb, hooknum, hdrlen, IPPROTO_ICMPV6))
-		return 0;
-
-	inside = (void *)skb->data + hdrlen;
-	if (inside->icmp6.icmp6_type == NDISC_REDIRECT) {
-		if ((ct->status & IPS_NAT_DONE_MASK) != IPS_NAT_DONE_MASK)
-			return 0;
-		if (ct->status & IPS_NAT_MASK)
-			return 0;
-	}
-
-	if (manip == NF_NAT_MANIP_SRC)
-		statusbit = IPS_SRC_NAT;
-	else
-		statusbit = IPS_DST_NAT;
-
-	/* Invert if this is reply direction */
-	if (dir == IP_CT_DIR_REPLY)
-		statusbit ^= IPS_NAT_MASK;
-
-	if (!(ct->status & statusbit))
-		return 1;
-
-	if (!nf_nat_ipv6_manip_pkt(skb, hdrlen + sizeof(inside->icmp6),
-				   &ct->tuplehash[!dir].tuple, !manip))
-		return 0;
-
-	if (skb->ip_summed != CHECKSUM_PARTIAL) {
-		struct ipv6hdr *ipv6h = ipv6_hdr(skb);
-		inside = (void *)skb->data + hdrlen;
-		inside->icmp6.icmp6_cksum = 0;
-		inside->icmp6.icmp6_cksum =
-			csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr,
-					skb->len - hdrlen, IPPROTO_ICMPV6,
-					skb_checksum(skb, hdrlen,
-						     skb->len - hdrlen, 0));
-	}
-
-	nf_ct_invert_tuple(&target, &ct->tuplehash[!dir].tuple);
-	target.dst.protonum = IPPROTO_ICMPV6;
-	if (!nf_nat_ipv6_manip_pkt(skb, 0, &target, manip))
-		return 0;
-
-	return 1;
-}
-EXPORT_SYMBOL_GPL(nf_nat_icmpv6_reply_translation);
-
-static unsigned int
-nf_nat_ipv6_fn(void *priv, struct sk_buff *skb,
-	       const struct nf_hook_state *state)
-{
-	struct nf_conn *ct;
-	enum ip_conntrack_info ctinfo;
-	__be16 frag_off;
-	int hdrlen;
-	u8 nexthdr;
-
-	ct = nf_ct_get(skb, &ctinfo);
-	/* Can't track?  It's not due to stress, or conntrack would
-	 * have dropped it.  Hence it's the user's responsibilty to
-	 * packet filter it out, or implement conntrack/NAT for that
-	 * protocol. 8) --RR
-	 */
-	if (!ct)
-		return NF_ACCEPT;
-
-	if (ctinfo == IP_CT_RELATED || ctinfo == IP_CT_RELATED_REPLY) {
-		nexthdr = ipv6_hdr(skb)->nexthdr;
-		hdrlen = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr),
-					  &nexthdr, &frag_off);
-
-		if (hdrlen >= 0 && nexthdr == IPPROTO_ICMPV6) {
-			if (!nf_nat_icmpv6_reply_translation(skb, ct, ctinfo,
-							     state->hook,
-							     hdrlen))
-				return NF_DROP;
-			else
-				return NF_ACCEPT;
-		}
-	}
-
-	return nf_nat_inet_fn(priv, skb, state);
-}
-
-static unsigned int
-nf_nat_ipv6_in(void *priv, struct sk_buff *skb,
-	       const struct nf_hook_state *state)
-{
-	unsigned int ret;
-	struct in6_addr daddr = ipv6_hdr(skb)->daddr;
-
-	ret = nf_nat_ipv6_fn(priv, skb, state);
-	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    ipv6_addr_cmp(&daddr, &ipv6_hdr(skb)->daddr))
-		skb_dst_drop(skb);
-
-	return ret;
-}
-
-static unsigned int
-nf_nat_ipv6_out(void *priv, struct sk_buff *skb,
-		const struct nf_hook_state *state)
-{
-#ifdef CONFIG_XFRM
-	const struct nf_conn *ct;
-	enum ip_conntrack_info ctinfo;
-	int err;
-#endif
-	unsigned int ret;
-
-	ret = nf_nat_ipv6_fn(priv, skb, state);
-#ifdef CONFIG_XFRM
-	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    !(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
-	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
-		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-
-		if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.src.u3,
-				      &ct->tuplehash[!dir].tuple.dst.u3) ||
-		    (ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMPV6 &&
-		     ct->tuplehash[dir].tuple.src.u.all !=
-		     ct->tuplehash[!dir].tuple.dst.u.all)) {
-			err = nf_xfrm_me_harder(state->net, skb, AF_INET6);
-			if (err < 0)
-				ret = NF_DROP_ERR(err);
-		}
-	}
-#endif
-	return ret;
-}
-
-static int nat_route_me_harder(struct net *net, struct sk_buff *skb)
-{
-#ifdef CONFIG_IPV6_MODULE
-	const struct nf_ipv6_ops *v6_ops = nf_get_ipv6_ops();
-
-	if (!v6_ops)
-		return -EHOSTUNREACH;
-
-	return v6_ops->route_me_harder(net, skb);
-#else
-	return ip6_route_me_harder(net, skb);
-#endif
-}
-
-static unsigned int
-nf_nat_ipv6_local_fn(void *priv, struct sk_buff *skb,
-		     const struct nf_hook_state *state)
-{
-	const struct nf_conn *ct;
-	enum ip_conntrack_info ctinfo;
-	unsigned int ret;
-	int err;
-
-	ret = nf_nat_ipv6_fn(priv, skb, state);
-	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
-		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-
-		if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.dst.u3,
-				      &ct->tuplehash[!dir].tuple.src.u3)) {
-			err = nat_route_me_harder(state->net, skb);
-			if (err < 0)
-				ret = NF_DROP_ERR(err);
-		}
-#ifdef CONFIG_XFRM
-		else if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
-			 ct->tuplehash[dir].tuple.dst.protonum != IPPROTO_ICMPV6 &&
-			 ct->tuplehash[dir].tuple.dst.u.all !=
-			 ct->tuplehash[!dir].tuple.src.u.all) {
-			err = nf_xfrm_me_harder(state->net, skb, AF_INET6);
-			if (err < 0)
-				ret = NF_DROP_ERR(err);
-		}
-#endif
-	}
-	return ret;
-}
-
-static const struct nf_hook_ops nf_nat_ipv6_ops[] = {
-	/* Before packet filtering, change destination */
-	{
-		.hook		= nf_nat_ipv6_in,
-		.pf		= NFPROTO_IPV6,
-		.hooknum	= NF_INET_PRE_ROUTING,
-		.priority	= NF_IP6_PRI_NAT_DST,
-	},
-	/* After packet filtering, change source */
-	{
-		.hook		= nf_nat_ipv6_out,
-		.pf		= NFPROTO_IPV6,
-		.hooknum	= NF_INET_POST_ROUTING,
-		.priority	= NF_IP6_PRI_NAT_SRC,
-	},
-	/* Before packet filtering, change destination */
-	{
-		.hook		= nf_nat_ipv6_local_fn,
-		.pf		= NFPROTO_IPV6,
-		.hooknum	= NF_INET_LOCAL_OUT,
-		.priority	= NF_IP6_PRI_NAT_DST,
-	},
-	/* After packet filtering, change source */
-	{
-		.hook		= nf_nat_ipv6_fn,
-		.pf		= NFPROTO_IPV6,
-		.hooknum	= NF_INET_LOCAL_IN,
-		.priority	= NF_IP6_PRI_NAT_SRC,
-	},
-};
-
-int nf_nat_l3proto_ipv6_register_fn(struct net *net, const struct nf_hook_ops *ops)
-{
-	return nf_nat_register_fn(net, ops, nf_nat_ipv6_ops, ARRAY_SIZE(nf_nat_ipv6_ops));
-}
-EXPORT_SYMBOL_GPL(nf_nat_l3proto_ipv6_register_fn);
-
-void nf_nat_l3proto_ipv6_unregister_fn(struct net *net, const struct nf_hook_ops *ops)
-{
-	nf_nat_unregister_fn(net, ops, ARRAY_SIZE(nf_nat_ipv6_ops));
-}
-EXPORT_SYMBOL_GPL(nf_nat_l3proto_ipv6_unregister_fn);
-
-static int __init nf_nat_l3proto_ipv6_init(void)
-{
-	return nf_nat_l3proto_register(&nf_nat_l3proto_ipv6);
-}
-
-static void __exit nf_nat_l3proto_ipv6_exit(void)
-{
-	nf_nat_l3proto_unregister(&nf_nat_l3proto_ipv6);
-}
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("nf-nat-" __stringify(AF_INET6));
-
-module_init(nf_nat_l3proto_ipv6_init);
-module_exit(nf_nat_l3proto_ipv6_exit);
diff --git a/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c b/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
deleted file mode 100644
index fd313b726263..000000000000
--- a/net/ipv6/netfilter/nf_nat_masquerade_ipv6.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Based on Rusty Russell's IPv6 MASQUERADE target. Development of IPv6
- * NAT funded by Astaro.
- */
-
-#include <linux/kernel.h>
-#include <linux/atomic.h>
-#include <linux/netdevice.h>
-#include <linux/ipv6.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv6.h>
-#include <net/netfilter/nf_nat.h>
-#include <net/addrconf.h>
-#include <net/ipv6.h>
-#include <net/netfilter/ipv6/nf_nat_masquerade.h>
-
-#define MAX_WORK_COUNT	16
-
-static atomic_t v6_worker_count;
-
-static int
-nat_ipv6_dev_get_saddr(struct net *net, const struct net_device *dev,
-		       const struct in6_addr *daddr, unsigned int srcprefs,
-		       struct in6_addr *saddr)
-{
-#ifdef CONFIG_IPV6_MODULE
-	const struct nf_ipv6_ops *v6_ops = nf_get_ipv6_ops();
-
-	if (!v6_ops)
-		return -EHOSTUNREACH;
-
-	return v6_ops->dev_get_saddr(net, dev, daddr, srcprefs, saddr);
-#else
-	return ipv6_dev_get_saddr(net, dev, daddr, srcprefs, saddr);
-#endif
-}
-
-unsigned int
-nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range2 *range,
-		       const struct net_device *out)
-{
-	enum ip_conntrack_info ctinfo;
-	struct nf_conn_nat *nat;
-	struct in6_addr src;
-	struct nf_conn *ct;
-	struct nf_nat_range2 newrange;
-
-	ct = nf_ct_get(skb, &ctinfo);
-	WARN_ON(!(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED ||
-			 ctinfo == IP_CT_RELATED_REPLY)));
-
-	if (nat_ipv6_dev_get_saddr(nf_ct_net(ct), out,
-				   &ipv6_hdr(skb)->daddr, 0, &src) < 0)
-		return NF_DROP;
-
-	nat = nf_ct_nat_ext_add(ct);
-	if (nat)
-		nat->masq_index = out->ifindex;
-
-	newrange.flags		= range->flags | NF_NAT_RANGE_MAP_IPS;
-	newrange.min_addr.in6	= src;
-	newrange.max_addr.in6	= src;
-	newrange.min_proto	= range->min_proto;
-	newrange.max_proto	= range->max_proto;
-
-	return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_SRC);
-}
-EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6);
-
-static int device_cmp(struct nf_conn *ct, void *ifindex)
-{
-	const struct nf_conn_nat *nat = nfct_nat(ct);
-
-	if (!nat)
-		return 0;
-	if (nf_ct_l3num(ct) != NFPROTO_IPV6)
-		return 0;
-	return nat->masq_index == (int)(long)ifindex;
-}
-
-static int masq_device_event(struct notifier_block *this,
-			     unsigned long event, void *ptr)
-{
-	const struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-	struct net *net = dev_net(dev);
-
-	if (event == NETDEV_DOWN)
-		nf_ct_iterate_cleanup_net(net, device_cmp,
-					  (void *)(long)dev->ifindex, 0, 0);
-
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block masq_dev_notifier = {
-	.notifier_call	= masq_device_event,
-};
-
-struct masq_dev_work {
-	struct work_struct work;
-	struct net *net;
-	struct in6_addr addr;
-	int ifindex;
-};
-
-static int inet_cmp(struct nf_conn *ct, void *work)
-{
-	struct masq_dev_work *w = (struct masq_dev_work *)work;
-	struct nf_conntrack_tuple *tuple;
-
-	if (!device_cmp(ct, (void *)(long)w->ifindex))
-		return 0;
-
-	tuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-
-	return ipv6_addr_equal(&w->addr, &tuple->dst.u3.in6);
-}
-
-static void iterate_cleanup_work(struct work_struct *work)
-{
-	struct masq_dev_work *w;
-
-	w = container_of(work, struct masq_dev_work, work);
-
-	nf_ct_iterate_cleanup_net(w->net, inet_cmp, (void *)w, 0, 0);
-
-	put_net(w->net);
-	kfree(w);
-	atomic_dec(&v6_worker_count);
-	module_put(THIS_MODULE);
-}
-
-/* ipv6 inet notifier is an atomic notifier, i.e. we cannot
- * schedule.
- *
- * Unfortunately, nf_ct_iterate_cleanup_net can run for a long
- * time if there are lots of conntracks and the system
- * handles high softirq load, so it frequently calls cond_resched
- * while iterating the conntrack table.
- *
- * So we defer nf_ct_iterate_cleanup_net walk to the system workqueue.
- *
- * As we can have 'a lot' of inet_events (depending on amount
- * of ipv6 addresses being deleted), we also need to add an upper
- * limit to the number of queued work items.
- */
-static int masq_inet6_event(struct notifier_block *this,
-			    unsigned long event, void *ptr)
-{
-	struct inet6_ifaddr *ifa = ptr;
-	const struct net_device *dev;
-	struct masq_dev_work *w;
-	struct net *net;
-
-	if (event != NETDEV_DOWN ||
-	    atomic_read(&v6_worker_count) >= MAX_WORK_COUNT)
-		return NOTIFY_DONE;
-
-	dev = ifa->idev->dev;
-	net = maybe_get_net(dev_net(dev));
-	if (!net)
-		return NOTIFY_DONE;
-
-	if (!try_module_get(THIS_MODULE))
-		goto err_module;
-
-	w = kmalloc(sizeof(*w), GFP_ATOMIC);
-	if (w) {
-		atomic_inc(&v6_worker_count);
-
-		INIT_WORK(&w->work, iterate_cleanup_work);
-		w->ifindex = dev->ifindex;
-		w->net = net;
-		w->addr = ifa->addr;
-		schedule_work(&w->work);
-
-		return NOTIFY_DONE;
-	}
-
-	module_put(THIS_MODULE);
- err_module:
-	put_net(net);
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block masq_inet6_notifier = {
-	.notifier_call	= masq_inet6_event,
-};
-
-static int masq_refcnt;
-static DEFINE_MUTEX(masq_mutex);
-
-int nf_nat_masquerade_ipv6_register_notifier(void)
-{
-	int ret = 0;
-
-	mutex_lock(&masq_mutex);
-	/* check if the notifier is already set */
-	if (++masq_refcnt > 1)
-		goto out_unlock;
-
-	ret = register_netdevice_notifier(&masq_dev_notifier);
-	if (ret)
-		goto err_dec;
-
-	ret = register_inet6addr_notifier(&masq_inet6_notifier);
-	if (ret)
-		goto err_unregister;
-
-	mutex_unlock(&masq_mutex);
-	return ret;
-
-err_unregister:
-	unregister_netdevice_notifier(&masq_dev_notifier);
-err_dec:
-	masq_refcnt--;
-out_unlock:
-	mutex_unlock(&masq_mutex);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6_register_notifier);
-
-void nf_nat_masquerade_ipv6_unregister_notifier(void)
-{
-	mutex_lock(&masq_mutex);
-	/* check if the notifier still has clients */
-	if (--masq_refcnt > 0)
-		goto out_unlock;
-
-	unregister_inet6addr_notifier(&masq_inet6_notifier);
-	unregister_netdevice_notifier(&masq_dev_notifier);
-out_unlock:
-	mutex_unlock(&masq_mutex);
-}
-EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6_unregister_notifier);
diff --git a/net/ipv6/netfilter/nft_chain_nat_ipv6.c b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
deleted file mode 100644
index 8a081ad7d5db..000000000000
--- a/net/ipv6/netfilter/nft_chain_nat_ipv6.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
- * Copyright (c) 2012 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv6.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_conntrack.h>
-#include <net/netfilter/nf_nat.h>
-#include <net/netfilter/nf_nat_core.h>
-#include <net/netfilter/nf_tables.h>
-#include <net/netfilter/nf_tables_ipv6.h>
-#include <net/netfilter/nf_nat_l3proto.h>
-#include <net/ipv6.h>
-
-static unsigned int nft_nat_do_chain(void *priv,
-				     struct sk_buff *skb,
-				     const struct nf_hook_state *state)
-{
-	struct nft_pktinfo pkt;
-
-	nft_set_pktinfo(&pkt, skb, state);
-	nft_set_pktinfo_ipv6(&pkt, skb);
-
-	return nft_do_chain(&pkt, priv);
-}
-
-static int nft_nat_ipv6_reg(struct net *net, const struct nf_hook_ops *ops)
-{
-	return nf_nat_l3proto_ipv6_register_fn(net, ops);
-}
-
-static void nft_nat_ipv6_unreg(struct net *net, const struct nf_hook_ops *ops)
-{
-	nf_nat_l3proto_ipv6_unregister_fn(net, ops);
-}
-
-static const struct nft_chain_type nft_chain_nat_ipv6 = {
-	.name		= "nat",
-	.type		= NFT_CHAIN_T_NAT,
-	.family		= NFPROTO_IPV6,
-	.owner		= THIS_MODULE,
-	.hook_mask	= (1 << NF_INET_PRE_ROUTING) |
-			  (1 << NF_INET_POST_ROUTING) |
-			  (1 << NF_INET_LOCAL_OUT) |
-			  (1 << NF_INET_LOCAL_IN),
-	.hooks		= {
-		[NF_INET_PRE_ROUTING]	= nft_nat_do_chain,
-		[NF_INET_POST_ROUTING]	= nft_nat_do_chain,
-		[NF_INET_LOCAL_OUT]	= nft_nat_do_chain,
-		[NF_INET_LOCAL_IN]	= nft_nat_do_chain,
-	},
-	.ops_register		= nft_nat_ipv6_reg,
-	.ops_unregister		= nft_nat_ipv6_unreg,
-};
-
-static int __init nft_chain_nat_ipv6_init(void)
-{
-	nft_register_chain_type(&nft_chain_nat_ipv6);
-
-	return 0;
-}
-
-static void __exit nft_chain_nat_ipv6_exit(void)
-{
-	nft_unregister_chain_type(&nft_chain_nat_ipv6);
-}
-
-module_init(nft_chain_nat_ipv6_init);
-module_exit(nft_chain_nat_ipv6_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
-MODULE_ALIAS_NFT_CHAIN(AF_INET6, "nat");
diff --git a/net/ipv6/netfilter/nft_masq_ipv6.c b/net/ipv6/netfilter/nft_masq_ipv6.c
deleted file mode 100644
index e06c82e9dfcd..000000000000
--- a/net/ipv6/netfilter/nft_masq_ipv6.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (c) 2014 Arturo Borrero Gonzalez <arturo@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netlink.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_tables.h>
-#include <net/netfilter/nf_nat.h>
-#include <net/netfilter/nft_masq.h>
-#include <net/netfilter/ipv6/nf_nat_masquerade.h>
-
-static void nft_masq_ipv6_eval(const struct nft_expr *expr,
-			       struct nft_regs *regs,
-			       const struct nft_pktinfo *pkt)
-{
-	struct nft_masq *priv = nft_expr_priv(expr);
-	struct nf_nat_range2 range;
-
-	memset(&range, 0, sizeof(range));
-	range.flags = priv->flags;
-	if (priv->sreg_proto_min) {
-		range.min_proto.all = (__force __be16)nft_reg_load16(
-			&regs->data[priv->sreg_proto_min]);
-		range.max_proto.all = (__force __be16)nft_reg_load16(
-			&regs->data[priv->sreg_proto_max]);
-	}
-	regs->verdict.code = nf_nat_masquerade_ipv6(pkt->skb, &range,
-						    nft_out(pkt));
-}
-
-static void
-nft_masq_ipv6_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
-{
-	nf_ct_netns_put(ctx->net, NFPROTO_IPV6);
-}
-
-static struct nft_expr_type nft_masq_ipv6_type;
-static const struct nft_expr_ops nft_masq_ipv6_ops = {
-	.type		= &nft_masq_ipv6_type,
-	.size		= NFT_EXPR_SIZE(sizeof(struct nft_masq)),
-	.eval		= nft_masq_ipv6_eval,
-	.init		= nft_masq_init,
-	.destroy	= nft_masq_ipv6_destroy,
-	.dump		= nft_masq_dump,
-	.validate	= nft_masq_validate,
-};
-
-static struct nft_expr_type nft_masq_ipv6_type __read_mostly = {
-	.family		= NFPROTO_IPV6,
-	.name		= "masq",
-	.ops		= &nft_masq_ipv6_ops,
-	.policy		= nft_masq_policy,
-	.maxattr	= NFTA_MASQ_MAX,
-	.owner		= THIS_MODULE,
-};
-
-static int __init nft_masq_ipv6_module_init(void)
-{
-	int ret;
-
-	ret = nft_register_expr(&nft_masq_ipv6_type);
-	if (ret < 0)
-		return ret;
-
-	ret = nf_nat_masquerade_ipv6_register_notifier();
-	if (ret)
-		nft_unregister_expr(&nft_masq_ipv6_type);
-
-	return ret;
-}
-
-static void __exit nft_masq_ipv6_module_exit(void)
-{
-	nft_unregister_expr(&nft_masq_ipv6_type);
-	nf_nat_masquerade_ipv6_unregister_notifier();
-}
-
-module_init(nft_masq_ipv6_module_init);
-module_exit(nft_masq_ipv6_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Arturo Borrero Gonzalez <arturo@debian.org>");
-MODULE_ALIAS_NFT_AF_EXPR(AF_INET6, "masq");
diff --git a/net/ipv6/netfilter/nft_redir_ipv6.c b/net/ipv6/netfilter/nft_redir_ipv6.c
deleted file mode 100644
index 74269865acc8..000000000000
--- a/net/ipv6/netfilter/nft_redir_ipv6.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (c) 2014 Arturo Borrero Gonzalez <arturo@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netlink.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_tables.h>
-#include <net/netfilter/nf_nat.h>
-#include <net/netfilter/nft_redir.h>
-#include <net/netfilter/nf_nat_redirect.h>
-
-static void nft_redir_ipv6_eval(const struct nft_expr *expr,
-				struct nft_regs *regs,
-				const struct nft_pktinfo *pkt)
-{
-	struct nft_redir *priv = nft_expr_priv(expr);
-	struct nf_nat_range2 range;
-
-	memset(&range, 0, sizeof(range));
-	if (priv->sreg_proto_min) {
-		range.min_proto.all = (__force __be16)nft_reg_load16(
-			&regs->data[priv->sreg_proto_min]);
-		range.max_proto.all = (__force __be16)nft_reg_load16(
-			&regs->data[priv->sreg_proto_max]);
-		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
-	}
-
-	range.flags |= priv->flags;
-
-	regs->verdict.code =
-		nf_nat_redirect_ipv6(pkt->skb, &range, nft_hook(pkt));
-}
-
-static void
-nft_redir_ipv6_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
-{
-	nf_ct_netns_put(ctx->net, NFPROTO_IPV6);
-}
-
-static struct nft_expr_type nft_redir_ipv6_type;
-static const struct nft_expr_ops nft_redir_ipv6_ops = {
-	.type		= &nft_redir_ipv6_type,
-	.size		= NFT_EXPR_SIZE(sizeof(struct nft_redir)),
-	.eval		= nft_redir_ipv6_eval,
-	.init		= nft_redir_init,
-	.destroy	= nft_redir_ipv6_destroy,
-	.dump		= nft_redir_dump,
-	.validate	= nft_redir_validate,
-};
-
-static struct nft_expr_type nft_redir_ipv6_type __read_mostly = {
-	.family		= NFPROTO_IPV6,
-	.name		= "redir",
-	.ops		= &nft_redir_ipv6_ops,
-	.policy		= nft_redir_policy,
-	.maxattr	= NFTA_REDIR_MAX,
-	.owner		= THIS_MODULE,
-};
-
-static int __init nft_redir_ipv6_module_init(void)
-{
-	return nft_register_expr(&nft_redir_ipv6_type);
-}
-
-static void __exit nft_redir_ipv6_module_exit(void)
-{
-	nft_unregister_expr(&nft_redir_ipv6_type);
-}
-
-module_init(nft_redir_ipv6_module_init);
-module_exit(nft_redir_ipv6_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Arturo Borrero Gonzalez <arturo@debian.org>");
-MODULE_ALIAS_NFT_AF_EXPR(AF_INET6, "redir");