Merge tag 'nf-24-10-09' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Restrict xtables extensions to families that are safe, syzbot found
   a way to combine ebtables with extensions that are never used by
   userspace tools. From Florian Westphal.

2) Set l3mdev inconditionally whenever possible in nft_fib to fix lookup
   mismatch, also from Florian.

netfilter pull request 24-10-09

* tag 'nf-24-10-09' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  selftests: netfilter: conntrack_vrf.sh: add fib test case
  netfilter: fib: check correct rtable in vrf setups
  netfilter: xtables: avoid NFPROTO_UNSPEC where needed
====================

Link: https://patch.msgid.link/20241009213858.3565808-1-pablo@netfilter.orgSigned-off-by: Paolo Abeni <pabeni@redhat.com>

net/ipv4/netfilter/nft_fib_ipv4.c

@@ -65,6 +65,7 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
 		.flowi4_scope = RT_SCOPE_UNIVERSE,
 		.flowi4_iif = LOOPBACK_IFINDEX,
 		.flowi4_uid = sock_net_uid(nft_net(pkt), NULL),
+		.flowi4_l3mdev = l3mdev_master_ifindex_rcu(nft_in(pkt)),
 	};
 	const struct net_device *oif;
 	const struct net_device *found;
@@ -83,9 +84,6 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
 	else
 		oif = NULL;
 
-	if (priv->flags & NFTA_FIB_F_IIF)
-		fl4.flowi4_l3mdev = l3mdev_master_ifindex_rcu(oif);
-
 	if (nft_hook(pkt) == NF_INET_PRE_ROUTING &&
 	    nft_fib_is_loopback(pkt->skb, nft_in(pkt))) {
 		nft_fib_store_result(dest, priv, nft_in(pkt));

net/ipv6/netfilter/nft_fib_ipv6.c

@@ -41,8 +41,6 @@ static int nft_fib6_flowi_init(struct flowi6 *fl6, const struct nft_fib *priv,
 	if (ipv6_addr_type(&fl6->daddr) & IPV6_ADDR_LINKLOCAL) {
 		lookup_flags |= RT6_LOOKUP_F_IFACE;
 		fl6->flowi6_oif = get_ifindex(dev ? dev : pkt->skb->dev);
-	} else if (priv->flags & NFTA_FIB_F_IIF) {
-		fl6->flowi6_l3mdev = l3mdev_master_ifindex_rcu(dev);
 	}
 
 	if (ipv6_addr_type(&fl6->saddr) & IPV6_ADDR_UNICAST)
@@ -75,6 +73,8 @@ static u32 __nft_fib6_eval_type(const struct nft_fib *priv,
 	else if (priv->flags & NFTA_FIB_F_OIF)
 		dev = nft_out(pkt);
 
+	fl6.flowi6_l3mdev = l3mdev_master_ifindex_rcu(dev);
+
 	nft_fib6_flowi_init(&fl6, priv, pkt, dev, iph);
 
 	if (dev && nf_ipv6_chk_addr(nft_net(pkt), &fl6.daddr, dev, true))
@@ -165,6 +165,7 @@ void nft_fib6_eval(const struct nft_expr *expr, struct nft_regs *regs,
 		.flowi6_iif = LOOPBACK_IFINDEX,
 		.flowi6_proto = pkt->tprot,
 		.flowi6_uid = sock_net_uid(nft_net(pkt), NULL),
+		.flowi6_l3mdev = l3mdev_master_ifindex_rcu(nft_in(pkt)),
 	};
 	struct rt6_info *rt;
 	int lookup_flags;

net/netfilter/xt_CHECKSUM.c

@@ -63,24 +63,37 @@ static int checksum_tg_check(const struct xt_tgchk_param *par)
 	return 0;
 }
 
-static struct xt_target checksum_tg_reg __read_mostly = {
+static struct xt_target checksum_tg_reg[] __read_mostly = {
+	{
 		.name		= "CHECKSUM",
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.target		= checksum_tg,
 		.targetsize	= sizeof(struct xt_CHECKSUM_info),
 		.table		= "mangle",
 		.checkentry	= checksum_tg_check,
 		.me		= THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "CHECKSUM",
+		.family		= NFPROTO_IPV6,
+		.target		= checksum_tg,
+		.targetsize	= sizeof(struct xt_CHECKSUM_info),
+		.table		= "mangle",
+		.checkentry	= checksum_tg_check,
+		.me		= THIS_MODULE,
+	},
+#endif
 };
 
 static int __init checksum_tg_init(void)
 {
-	return xt_register_target(&checksum_tg_reg);
+	return xt_register_targets(checksum_tg_reg, ARRAY_SIZE(checksum_tg_reg));
 }
 
 static void __exit checksum_tg_exit(void)
 {
-	xt_unregister_target(&checksum_tg_reg);
+	xt_unregister_targets(checksum_tg_reg, ARRAY_SIZE(checksum_tg_reg));
 }
 
 module_init(checksum_tg_init);

net/netfilter/xt_CLASSIFY.c

@@ -38,7 +38,7 @@ static struct xt_target classify_tg_reg[] __read_mostly = {
 	{
 		.name       = "CLASSIFY",
 		.revision   = 0,
-		.family     = NFPROTO_UNSPEC,
+		.family     = NFPROTO_IPV4,
 		.hooks      = (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) |
 			      (1 << NF_INET_POST_ROUTING),
 		.target     = classify_tg,
@@ -54,6 +54,18 @@ static struct xt_target classify_tg_reg[] __read_mostly = {
 		.targetsize = sizeof(struct xt_classify_target_info),
 		.me         = THIS_MODULE,
 	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name       = "CLASSIFY",
+		.revision   = 0,
+		.family     = NFPROTO_IPV6,
+		.hooks      = (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) |
+			      (1 << NF_INET_POST_ROUTING),
+		.target     = classify_tg,
+		.targetsize = sizeof(struct xt_classify_target_info),
+		.me         = THIS_MODULE,
+	},
+#endif
 };
 
 static int __init classify_tg_init(void)

net/netfilter/xt_CONNSECMARK.c

@@ -114,25 +114,39 @@ static void connsecmark_tg_destroy(const struct xt_tgdtor_param *par)
 	nf_ct_netns_put(par->net, par->family);
 }
 
-static struct xt_target connsecmark_tg_reg __read_mostly = {
+static struct xt_target connsecmark_tg_reg[] __read_mostly = {
+	{
 		.name       = "CONNSECMARK",
 		.revision   = 0,
-	.family     = NFPROTO_UNSPEC,
+		.family     = NFPROTO_IPV4,
 		.checkentry = connsecmark_tg_check,
 		.destroy    = connsecmark_tg_destroy,
 		.target     = connsecmark_tg,
 		.targetsize = sizeof(struct xt_connsecmark_target_info),
 		.me         = THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name       = "CONNSECMARK",
+		.revision   = 0,
+		.family     = NFPROTO_IPV6,
+		.checkentry = connsecmark_tg_check,
+		.destroy    = connsecmark_tg_destroy,
+		.target     = connsecmark_tg,
+		.targetsize = sizeof(struct xt_connsecmark_target_info),
+		.me         = THIS_MODULE,
+	},
+#endif
 };
 
 static int __init connsecmark_tg_init(void)
 {
-	return xt_register_target(&connsecmark_tg_reg);
+	return xt_register_targets(connsecmark_tg_reg, ARRAY_SIZE(connsecmark_tg_reg));
 }
 
 static void __exit connsecmark_tg_exit(void)
 {
-	xt_unregister_target(&connsecmark_tg_reg);
+	xt_unregister_targets(connsecmark_tg_reg, ARRAY_SIZE(connsecmark_tg_reg));
 }
 
 module_init(connsecmark_tg_init);

net/netfilter/xt_CT.c

@@ -313,10 +313,30 @@ static void xt_ct_tg_destroy_v1(const struct xt_tgdtor_param *par)
 	xt_ct_tg_destroy(par, par->targinfo);
 }
 
+static unsigned int
+notrack_tg(struct sk_buff *skb, const struct xt_action_param *par)
+{
+	/* Previously seen (loopback)? Ignore. */
+	if (skb->_nfct != 0)
+		return XT_CONTINUE;
+
+	nf_ct_set(skb, NULL, IP_CT_UNTRACKED);
+
+	return XT_CONTINUE;
+}
+
 static struct xt_target xt_ct_tg_reg[] __read_mostly = {
+	{
+		.name		= "NOTRACK",
+		.revision	= 0,
+		.family		= NFPROTO_IPV4,
+		.target		= notrack_tg,
+		.table		= "raw",
+		.me		= THIS_MODULE,
+	},
 	{
 		.name		= "CT",
-		.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.targetsize	= sizeof(struct xt_ct_target_info),
 		.usersize	= offsetof(struct xt_ct_target_info, ct),
 		.checkentry	= xt_ct_tg_check_v0,
@@ -327,7 +347,7 @@ static struct xt_target xt_ct_tg_reg[] __read_mostly = {
 	},
 	{
 		.name		= "CT",
-		.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.revision	= 1,
 		.targetsize	= sizeof(struct xt_ct_target_info_v1),
 		.usersize	= offsetof(struct xt_ct_target_info, ct),
@@ -339,7 +359,7 @@ static struct xt_target xt_ct_tg_reg[] __read_mostly = {
 	},
 	{
 		.name		= "CT",
-		.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.revision	= 2,
 		.targetsize	= sizeof(struct xt_ct_target_info_v1),
 		.usersize	= offsetof(struct xt_ct_target_info, ct),
@@ -349,49 +369,61 @@ static struct xt_target xt_ct_tg_reg[] __read_mostly = {
 		.table		= "raw",
 		.me		= THIS_MODULE,
 	},
-};
-
-static unsigned int
-notrack_tg(struct sk_buff *skb, const struct xt_action_param *par)
-{
-	/* Previously seen (loopback)? Ignore. */
-	if (skb->_nfct != 0)
-		return XT_CONTINUE;
-
-	nf_ct_set(skb, NULL, IP_CT_UNTRACKED);
-
-	return XT_CONTINUE;
-}
-
-static struct xt_target notrack_tg_reg __read_mostly = {
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
 		.name		= "NOTRACK",
 		.revision	= 0,
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV6,
 		.target		= notrack_tg,
 		.table		= "raw",
 		.me		= THIS_MODULE,
+	},
+	{
+		.name		= "CT",
+		.family		= NFPROTO_IPV6,
+		.targetsize	= sizeof(struct xt_ct_target_info),
+		.usersize	= offsetof(struct xt_ct_target_info, ct),
+		.checkentry	= xt_ct_tg_check_v0,
+		.destroy	= xt_ct_tg_destroy_v0,
+		.target		= xt_ct_target_v0,
+		.table		= "raw",
+		.me		= THIS_MODULE,
+	},
+	{
+		.name		= "CT",
+		.family		= NFPROTO_IPV6,
+		.revision	= 1,
+		.targetsize	= sizeof(struct xt_ct_target_info_v1),
+		.usersize	= offsetof(struct xt_ct_target_info, ct),
+		.checkentry	= xt_ct_tg_check_v1,
+		.destroy	= xt_ct_tg_destroy_v1,
+		.target		= xt_ct_target_v1,
+		.table		= "raw",
+		.me		= THIS_MODULE,
+	},
+	{
+		.name		= "CT",
+		.family		= NFPROTO_IPV6,
+		.revision	= 2,
+		.targetsize	= sizeof(struct xt_ct_target_info_v1),
+		.usersize	= offsetof(struct xt_ct_target_info, ct),
+		.checkentry	= xt_ct_tg_check_v2,
+		.destroy	= xt_ct_tg_destroy_v1,
+		.target		= xt_ct_target_v1,
+		.table		= "raw",
+		.me		= THIS_MODULE,
+	},
+#endif
 };
 
 static int __init xt_ct_tg_init(void)
 {
-	int ret;
-
-	ret = xt_register_target(&notrack_tg_reg);
-	if (ret < 0)
-		return ret;
-
-	ret = xt_register_targets(xt_ct_tg_reg, ARRAY_SIZE(xt_ct_tg_reg));
-	if (ret < 0) {
-		xt_unregister_target(&notrack_tg_reg);
-		return ret;
-	}
-	return 0;
+	return xt_register_targets(xt_ct_tg_reg, ARRAY_SIZE(xt_ct_tg_reg));
 }
 
 static void __exit xt_ct_tg_exit(void)
 {
 	xt_unregister_targets(xt_ct_tg_reg, ARRAY_SIZE(xt_ct_tg_reg));
-	xt_unregister_target(&notrack_tg_reg);
 }
 
 module_init(xt_ct_tg_init);

net/netfilter/xt_IDLETIMER.c

@@ -459,7 +459,7 @@ static void idletimer_tg_destroy_v1(const struct xt_tgdtor_param *par)
 static struct xt_target idletimer_tg[] __read_mostly = {
 	{
 		.name		= "IDLETIMER",
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.target		= idletimer_tg_target,
 		.targetsize     = sizeof(struct idletimer_tg_info),
 		.usersize	= offsetof(struct idletimer_tg_info, timer),
@@ -469,7 +469,7 @@ static struct xt_target idletimer_tg[] __read_mostly = {
 	},
 	{
 		.name		= "IDLETIMER",
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.revision	= 1,
 		.target		= idletimer_tg_target_v1,
 		.targetsize     = sizeof(struct idletimer_tg_info_v1),
@@ -478,8 +478,29 @@ static struct xt_target idletimer_tg[] __read_mostly = {
 		.destroy        = idletimer_tg_destroy_v1,
 		.me		= THIS_MODULE,
 	},
-
-
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "IDLETIMER",
+		.family		= NFPROTO_IPV6,
+		.target		= idletimer_tg_target,
+		.targetsize     = sizeof(struct idletimer_tg_info),
+		.usersize	= offsetof(struct idletimer_tg_info, timer),
+		.checkentry	= idletimer_tg_checkentry,
+		.destroy        = idletimer_tg_destroy,
+		.me		= THIS_MODULE,
+	},
+	{
+		.name		= "IDLETIMER",
+		.family		= NFPROTO_IPV6,
+		.revision	= 1,
+		.target		= idletimer_tg_target_v1,
+		.targetsize     = sizeof(struct idletimer_tg_info_v1),
+		.usersize	= offsetof(struct idletimer_tg_info_v1, timer),
+		.checkentry	= idletimer_tg_checkentry_v1,
+		.destroy        = idletimer_tg_destroy_v1,
+		.me		= THIS_MODULE,
+	},
+#endif
 };
 
 static struct class *idletimer_tg_class;

net/netfilter/xt_LED.c

@@ -175,26 +175,41 @@ static void led_tg_destroy(const struct xt_tgdtor_param *par)
 	kfree(ledinternal);
 }
 
-static struct xt_target led_tg_reg __read_mostly = {
+static struct xt_target led_tg_reg[] __read_mostly = {
+	{
 		.name		= "LED",
 		.revision	= 0,
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.target		= led_tg,
 		.targetsize	= sizeof(struct xt_led_info),
 		.usersize	= offsetof(struct xt_led_info, internal_data),
 		.checkentry	= led_tg_check,
 		.destroy	= led_tg_destroy,
 		.me		= THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "LED",
+		.revision	= 0,
+		.family		= NFPROTO_IPV6,
+		.target		= led_tg,
+		.targetsize	= sizeof(struct xt_led_info),
+		.usersize	= offsetof(struct xt_led_info, internal_data),
+		.checkentry	= led_tg_check,
+		.destroy	= led_tg_destroy,
+		.me		= THIS_MODULE,
+	},
+#endif
 };
 
 static int __init led_tg_init(void)
 {
-	return xt_register_target(&led_tg_reg);
+	return xt_register_targets(led_tg_reg, ARRAY_SIZE(led_tg_reg));
 }
 
 static void __exit led_tg_exit(void)
 {
-	xt_unregister_target(&led_tg_reg);
+	xt_unregister_targets(led_tg_reg, ARRAY_SIZE(led_tg_reg));
 }
 
 module_init(led_tg_init);

net/netfilter/xt_NFLOG.c

@@ -64,25 +64,39 @@ static void nflog_tg_destroy(const struct xt_tgdtor_param *par)
 	nf_logger_put(par->family, NF_LOG_TYPE_ULOG);
 }
 
-static struct xt_target nflog_tg_reg __read_mostly = {
+static struct xt_target nflog_tg_reg[] __read_mostly = {
+	{
 		.name       = "NFLOG",
 		.revision   = 0,
-	.family     = NFPROTO_UNSPEC,
+		.family     = NFPROTO_IPV4,
 		.checkentry = nflog_tg_check,
 		.destroy    = nflog_tg_destroy,
 		.target     = nflog_tg,
 		.targetsize = sizeof(struct xt_nflog_info),
 		.me         = THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name       = "NFLOG",
+		.revision   = 0,
+		.family     = NFPROTO_IPV4,
+		.checkentry = nflog_tg_check,
+		.destroy    = nflog_tg_destroy,
+		.target     = nflog_tg,
+		.targetsize = sizeof(struct xt_nflog_info),
+		.me         = THIS_MODULE,
+	},
+#endif
 };
 
 static int __init nflog_tg_init(void)
 {
-	return xt_register_target(&nflog_tg_reg);
+	return xt_register_targets(nflog_tg_reg, ARRAY_SIZE(nflog_tg_reg));
 }
 
 static void __exit nflog_tg_exit(void)
 {
-	xt_unregister_target(&nflog_tg_reg);
+	xt_unregister_targets(nflog_tg_reg, ARRAY_SIZE(nflog_tg_reg));
 }
 
 module_init(nflog_tg_init);

net/netfilter/xt_RATEEST.c

@@ -179,16 +179,31 @@ static void xt_rateest_tg_destroy(const struct xt_tgdtor_param *par)
 	xt_rateest_put(par->net, info->est);
 }
 
-static struct xt_target xt_rateest_tg_reg __read_mostly = {
+static struct xt_target xt_rateest_tg_reg[] __read_mostly = {
+	{
 		.name       = "RATEEST",
 		.revision   = 0,
-	.family     = NFPROTO_UNSPEC,
+		.family     = NFPROTO_IPV4,
 		.target     = xt_rateest_tg,
 		.checkentry = xt_rateest_tg_checkentry,
 		.destroy    = xt_rateest_tg_destroy,
 		.targetsize = sizeof(struct xt_rateest_target_info),
 		.usersize   = offsetof(struct xt_rateest_target_info, est),
 		.me         = THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name       = "RATEEST",
+		.revision   = 0,
+		.family     = NFPROTO_IPV6,
+		.target     = xt_rateest_tg,
+		.checkentry = xt_rateest_tg_checkentry,
+		.destroy    = xt_rateest_tg_destroy,
+		.targetsize = sizeof(struct xt_rateest_target_info),
+		.usersize   = offsetof(struct xt_rateest_target_info, est),
+		.me         = THIS_MODULE,
+	},
+#endif
 };
 
 static __net_init int xt_rateest_net_init(struct net *net)
@@ -214,12 +229,12 @@ static int __init xt_rateest_tg_init(void)
 
 	if (err)
 		return err;
-	return xt_register_target(&xt_rateest_tg_reg);
+	return xt_register_targets(xt_rateest_tg_reg, ARRAY_SIZE(xt_rateest_tg_reg));
 }
 
 static void __exit xt_rateest_tg_fini(void)
 {
-	xt_unregister_target(&xt_rateest_tg_reg);
+	xt_unregister_targets(xt_rateest_tg_reg, ARRAY_SIZE(xt_rateest_tg_reg));
 	unregister_pernet_subsys(&xt_rateest_net_ops);
 }
 

net/netfilter/xt_SECMARK.c

@@ -157,7 +157,7 @@ static struct xt_target secmark_tg_reg[] __read_mostly = {
 	{
 		.name		= "SECMARK",
 		.revision	= 0,
-		.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.checkentry	= secmark_tg_check_v0,
 		.destroy	= secmark_tg_destroy,
 		.target		= secmark_tg_v0,
@@ -167,7 +167,7 @@ static struct xt_target secmark_tg_reg[] __read_mostly = {
 	{
 		.name		= "SECMARK",
 		.revision	= 1,
-		.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.checkentry	= secmark_tg_check_v1,
 		.destroy	= secmark_tg_destroy,
 		.target		= secmark_tg_v1,
@@ -175,6 +175,29 @@ static struct xt_target secmark_tg_reg[] __read_mostly = {
 		.usersize	= offsetof(struct xt_secmark_target_info_v1, secid),
 		.me		= THIS_MODULE,
 	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "SECMARK",
+		.revision	= 0,
+		.family		= NFPROTO_IPV6,
+		.checkentry	= secmark_tg_check_v0,
+		.destroy	= secmark_tg_destroy,
+		.target		= secmark_tg_v0,
+		.targetsize	= sizeof(struct xt_secmark_target_info),
+		.me		= THIS_MODULE,
+	},
+	{
+		.name		= "SECMARK",
+		.revision	= 1,
+		.family		= NFPROTO_IPV6,
+		.checkentry	= secmark_tg_check_v1,
+		.destroy	= secmark_tg_destroy,
+		.target		= secmark_tg_v1,
+		.targetsize	= sizeof(struct xt_secmark_target_info_v1),
+		.usersize	= offsetof(struct xt_secmark_target_info_v1, secid),
+		.me		= THIS_MODULE,
+	},
+#endif
 };
 
 static int __init secmark_tg_init(void)

net/netfilter/xt_TRACE.c

@@ -29,25 +29,38 @@ trace_tg(struct sk_buff *skb, const struct xt_action_param *par)
 	return XT_CONTINUE;
 }
 
-static struct xt_target trace_tg_reg __read_mostly = {
+static struct xt_target trace_tg_reg[] __read_mostly = {
+	{
 		.name		= "TRACE",
 		.revision	= 0,
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.table		= "raw",
 		.target		= trace_tg,
 		.checkentry	= trace_tg_check,
 		.destroy	= trace_tg_destroy,
 		.me		= THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "TRACE",
+		.revision	= 0,
+		.family		= NFPROTO_IPV6,
+		.table		= "raw",
+		.target		= trace_tg,
+		.checkentry	= trace_tg_check,
+		.destroy	= trace_tg_destroy,
+	},
+#endif
 };
 
 static int __init trace_tg_init(void)
 {
-	return xt_register_target(&trace_tg_reg);
+	return xt_register_targets(trace_tg_reg, ARRAY_SIZE(trace_tg_reg));
 }
 
 static void __exit trace_tg_exit(void)
 {
-	xt_unregister_target(&trace_tg_reg);
+	xt_unregister_targets(trace_tg_reg, ARRAY_SIZE(trace_tg_reg));
 }
 
 module_init(trace_tg_init);

net/netfilter/xt_addrtype.c

@@ -208,13 +208,24 @@ static struct xt_match addrtype_mt_reg[] __read_mostly = {
 	},
 	{
 		.name		= "addrtype",
-		.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.revision	= 1,
 		.match		= addrtype_mt_v1,
 		.checkentry	= addrtype_mt_checkentry_v1,
 		.matchsize	= sizeof(struct xt_addrtype_info_v1),
 		.me		= THIS_MODULE
-	}
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "addrtype",
+		.family		= NFPROTO_IPV6,
+		.revision	= 1,
+		.match		= addrtype_mt_v1,
+		.checkentry	= addrtype_mt_checkentry_v1,
+		.matchsize	= sizeof(struct xt_addrtype_info_v1),
+		.me		= THIS_MODULE
+	},
+#endif
 };
 
 static int __init addrtype_mt_init(void)

net/netfilter/xt_cluster.c

@@ -146,24 +146,37 @@ static void xt_cluster_mt_destroy(const struct xt_mtdtor_param *par)
 	nf_ct_netns_put(par->net, par->family);
 }
 
-static struct xt_match xt_cluster_match __read_mostly = {
+static struct xt_match xt_cluster_match[] __read_mostly = {
+	{
 		.name		= "cluster",
-	.family		= NFPROTO_UNSPEC,
+		.family		= NFPROTO_IPV4,
 		.match		= xt_cluster_mt,
 		.checkentry	= xt_cluster_mt_checkentry,
 		.matchsize	= sizeof(struct xt_cluster_match_info),
 		.destroy	= xt_cluster_mt_destroy,
 		.me		= THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name		= "cluster",
+		.family		= NFPROTO_IPV6,
+		.match		= xt_cluster_mt,
+		.checkentry	= xt_cluster_mt_checkentry,
+		.matchsize	= sizeof(struct xt_cluster_match_info),
+		.destroy	= xt_cluster_mt_destroy,
+		.me		= THIS_MODULE,
+	},
+#endif
 };
 
 static int __init xt_cluster_mt_init(void)
 {
-	return xt_register_match(&xt_cluster_match);
+	return xt_register_matches(xt_cluster_match, ARRAY_SIZE(xt_cluster_match));
 }
 
 static void __exit xt_cluster_mt_fini(void)
 {
-	xt_unregister_match(&xt_cluster_match);
+	xt_unregister_matches(xt_cluster_match, ARRAY_SIZE(xt_cluster_match));
 }
 
 MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");

net/netfilter/xt_connbytes.c

@@ -111,9 +111,11 @@ static int connbytes_mt_check(const struct xt_mtchk_param *par)
 		return -EINVAL;
 
 	ret = nf_ct_netns_get(par->net, par->family);
-	if (ret < 0)
+	if (ret < 0) {
 		pr_info_ratelimited("cannot load conntrack support for proto=%u\n",
 				    par->family);
+		return ret;
+	}
 
 	/*
 	 * This filter cannot function correctly unless connection tracking

net/netfilter/xt_connlimit.c

@@ -117,26 +117,41 @@ static void connlimit_mt_destroy(const struct xt_mtdtor_param *par)
 	nf_ct_netns_put(par->net, par->family);
 }
 
-static struct xt_match connlimit_mt_reg __read_mostly = {
+static struct xt_match connlimit_mt_reg[] __read_mostly = {
+	{
 		.name       = "connlimit",
 		.revision   = 1,
-	.family     = NFPROTO_UNSPEC,
+		.family     = NFPROTO_IPV4,
 		.checkentry = connlimit_mt_check,
 		.match      = connlimit_mt,
 		.matchsize  = sizeof(struct xt_connlimit_info),
 		.usersize   = offsetof(struct xt_connlimit_info, data),
 		.destroy    = connlimit_mt_destroy,
 		.me         = THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name       = "connlimit",
+		.revision   = 1,
+		.family     = NFPROTO_IPV6,
+		.checkentry = connlimit_mt_check,
+		.match      = connlimit_mt,
+		.matchsize  = sizeof(struct xt_connlimit_info),
+		.usersize   = offsetof(struct xt_connlimit_info, data),
+		.destroy    = connlimit_mt_destroy,
+		.me         = THIS_MODULE,
+	},
+#endif
 };
 
 static int __init connlimit_mt_init(void)
 {
-	return xt_register_match(&connlimit_mt_reg);
+	return xt_register_matches(connlimit_mt_reg, ARRAY_SIZE(connlimit_mt_reg));
 }
 
 static void __exit connlimit_mt_exit(void)
 {
-	xt_unregister_match(&connlimit_mt_reg);
+	xt_unregister_matches(connlimit_mt_reg, ARRAY_SIZE(connlimit_mt_reg));
 }
 
 module_init(connlimit_mt_init);

net/netfilter/xt_connmark.c

@@ -151,7 +151,7 @@ static struct xt_target connmark_tg_reg[] __read_mostly = {
 	{
 		.name           = "CONNMARK",
 		.revision       = 1,
-		.family         = NFPROTO_UNSPEC,
+		.family         = NFPROTO_IPV4,
 		.checkentry     = connmark_tg_check,
 		.target         = connmark_tg,
 		.targetsize     = sizeof(struct xt_connmark_tginfo1),
@@ -161,13 +161,35 @@ static struct xt_target connmark_tg_reg[] __read_mostly = {
 	{
 		.name           = "CONNMARK",
 		.revision       = 2,
-		.family         = NFPROTO_UNSPEC,
+		.family         = NFPROTO_IPV4,
 		.checkentry     = connmark_tg_check,
 		.target         = connmark_tg_v2,
 		.targetsize     = sizeof(struct xt_connmark_tginfo2),
 		.destroy        = connmark_tg_destroy,
 		.me             = THIS_MODULE,
-	}
+	},
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name           = "CONNMARK",
+		.revision       = 1,
+		.family         = NFPROTO_IPV6,
+		.checkentry     = connmark_tg_check,
+		.target         = connmark_tg,
+		.targetsize     = sizeof(struct xt_connmark_tginfo1),
+		.destroy        = connmark_tg_destroy,
+		.me             = THIS_MODULE,
+	},
+	{
+		.name           = "CONNMARK",
+		.revision       = 2,
+		.family         = NFPROTO_IPV6,
+		.checkentry     = connmark_tg_check,
+		.target         = connmark_tg_v2,
+		.targetsize     = sizeof(struct xt_connmark_tginfo2),
+		.destroy        = connmark_tg_destroy,
+		.me             = THIS_MODULE,
+	},
+#endif
 };
 
 static struct xt_match connmark_mt_reg __read_mostly = {

net/netfilter/xt_mark.c

@@ -39,13 +39,35 @@ mark_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	return ((skb->mark & info->mask) == info->mark) ^ info->invert;
 }
 
-static struct xt_target mark_tg_reg __read_mostly = {
+static struct xt_target mark_tg_reg[] __read_mostly = {
+	{
 		.name           = "MARK",
 		.revision       = 2,
-	.family         = NFPROTO_UNSPEC,
+		.family         = NFPROTO_IPV4,
+		.target         = mark_tg,
+		.targetsize     = sizeof(struct xt_mark_tginfo2),
+		.me             = THIS_MODULE,
+	},
+#if IS_ENABLED(CONFIG_IP_NF_ARPTABLES)
+	{
+		.name           = "MARK",
+		.revision       = 2,
+		.family         = NFPROTO_ARP,
+		.target         = mark_tg,
+		.targetsize     = sizeof(struct xt_mark_tginfo2),
+		.me             = THIS_MODULE,
+	},
+#endif
+#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+	{
+		.name           = "MARK",
+		.revision       = 2,
+		.family         = NFPROTO_IPV4,
 		.target         = mark_tg,
 		.targetsize     = sizeof(struct xt_mark_tginfo2),
 		.me             = THIS_MODULE,
+	},
+#endif
 };
 
 static struct xt_match mark_mt_reg __read_mostly = {
@@ -61,12 +83,12 @@ static int __init mark_mt_init(void)
 {
 	int ret;
 
-	ret = xt_register_target(&mark_tg_reg);
+	ret = xt_register_targets(mark_tg_reg, ARRAY_SIZE(mark_tg_reg));
 	if (ret < 0)
 		return ret;
 	ret = xt_register_match(&mark_mt_reg);
 	if (ret < 0) {
-		xt_unregister_target(&mark_tg_reg);
+		xt_unregister_targets(mark_tg_reg, ARRAY_SIZE(mark_tg_reg));
 		return ret;
 	}
 	return 0;
@@ -75,7 +97,7 @@ static int __init mark_mt_init(void)
 static void __exit mark_mt_exit(void)
 {
 	xt_unregister_match(&mark_mt_reg);
-	xt_unregister_target(&mark_tg_reg);
+	xt_unregister_targets(mark_tg_reg, ARRAY_SIZE(mark_tg_reg));
 }
 
 module_init(mark_mt_init);

tools/testing/selftests/net/netfilter/conntrack_vrf.sh

@@ -32,6 +32,7 @@ source lib.sh
 
 IP0=172.30.30.1
 IP1=172.30.30.2
+DUMMYNET=10.9.9
 PFXL=30
 ret=0
 
@@ -54,6 +55,7 @@ setup_ns ns0 ns1
 ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.default.rp_filter=0
 ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.all.rp_filter=0
 ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.all.rp_filter=0
+ip netns exec "$ns0" sysctl -q -w net.ipv4.conf.all.forwarding=1
 
 if ! ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1; then
 	echo "SKIP: Could not add veth device"
@@ -65,13 +67,18 @@ if ! ip -net "$ns0" li add tvrf type vrf table 9876; then
 	exit $ksft_skip
 fi
 
+ip -net "$ns0" link add dummy0 type dummy
+
 ip -net "$ns0" li set veth0 master tvrf
+ip -net "$ns0" li set dummy0 master tvrf
 ip -net "$ns0" li set tvrf up
 ip -net "$ns0" li set veth0 up
+ip -net "$ns0" li set dummy0 up
 ip -net "$ns1" li set veth0 up
 
 ip -net "$ns0" addr add $IP0/$PFXL dev veth0
 ip -net "$ns1" addr add $IP1/$PFXL dev veth0
+ip -net "$ns0" addr add $DUMMYNET.1/$PFXL dev dummy0
 
 listener_ready()
 {
@@ -212,9 +219,35 @@ EOF
 	fi
 }
 
+test_fib()
+{
+ip netns exec "$ns0" nft -f - <<EOF
+flush ruleset
+table ip t {
+	counter fibcount { }
+
+	chain prerouting {
+		type filter hook prerouting priority 0;
+		meta iifname veth0 ip daddr $DUMMYNET.2 fib daddr oif dummy0 counter name fibcount notrack
+	}
+}
+EOF
+	ip -net "$ns1" route add 10.9.9.0/24 via "$IP0" dev veth0
+	ip netns exec "$ns1" ping -q -w 1 -c 1 "$DUMMYNET".2 > /dev/null
+
+	if ip netns exec "$ns0" nft list counter t fibcount | grep -q "packets 1"; then
+		echo "PASS: fib lookup returned exepected output interface"
+	else
+		echo "FAIL: fib lookup did not return exepected output interface"
+		ret=1
+		return
+	fi
+}
+
 test_ct_zone_in
 test_masquerade_vrf "default"
 test_masquerade_vrf "pfifo"
 test_masquerade_veth
+test_fib
 
 exit $ret