1 files changed, 297 insertions, 52 deletions

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 88325b264737..d878e34e3354 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -12,6 +12,7 @@
 #include <linux/netlink.h>
 #include <linux/vmalloc.h>
 #include <linux/rhashtable.h>
+#include <linux/audit.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nf_tables.h>
@@ -268,9 +269,15 @@ static struct nft_trans *nft_trans_chain_add(struct nft_ctx *ctx, int msg_type)
 	if (trans == NULL)
 		return ERR_PTR(-ENOMEM);
 
-	if (msg_type == NFT_MSG_NEWCHAIN)
+	if (msg_type == NFT_MSG_NEWCHAIN) {
 		nft_activate_next(ctx->net, ctx->chain);
 
+		if (ctx->nla[NFTA_CHAIN_ID]) {
+			nft_trans_chain_id(trans) =
+				ntohl(nla_get_be32(ctx->nla[NFTA_CHAIN_ID]));
+		}
+	}
+
 	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
 	return trans;
 }
@@ -681,6 +688,17 @@ static void nf_tables_table_notify(const struct nft_ctx *ctx, int event)
 {
 	struct sk_buff *skb;
 	int err;
+	char *buf = kasprintf(GFP_KERNEL, "%s:%llu;?:0",
+			      ctx->table->name, ctx->table->handle);
+
+	audit_log_nfcfg(buf,
+			ctx->family,
+			ctx->table->use,
+			event == NFT_MSG_NEWTABLE ?
+				AUDIT_NFT_OP_TABLE_REGISTER :
+				AUDIT_NFT_OP_TABLE_UNREGISTER,
+			GFP_KERNEL);
+	kfree(buf);
 
 	if (!ctx->report &&
 	    !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
@@ -1037,6 +1055,9 @@ static int nft_flush_table(struct nft_ctx *ctx)
 		if (!nft_is_active_next(ctx->net, chain))
 			continue;
 
+		if (nft_chain_is_bound(chain))
+			continue;
+
 		ctx->chain = chain;
 
 		err = nft_delrule_by_chain(ctx);
@@ -1079,6 +1100,9 @@ static int nft_flush_table(struct nft_ctx *ctx)
 		if (!nft_is_active_next(ctx->net, chain))
 			continue;
 
+		if (nft_chain_is_bound(chain))
+			continue;
+
 		ctx->chain = chain;
 
 		err = nft_delchain(ctx);
@@ -1261,6 +1285,7 @@ static const struct nla_policy nft_chain_policy[NFTA_CHAIN_MAX + 1] = {
 				    .len = NFT_MODULE_AUTOLOAD_LIMIT },
 	[NFTA_CHAIN_COUNTERS]	= { .type = NLA_NESTED },
 	[NFTA_CHAIN_FLAGS]	= { .type = NLA_U32 },
+	[NFTA_CHAIN_ID]		= { .type = NLA_U32 },
 };
 
 static const struct nla_policy nft_hook_policy[NFTA_HOOK_MAX + 1] = {
@@ -1393,13 +1418,12 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, struct net *net,
 					      lockdep_commit_lock_is_held(net));
 		if (nft_dump_stats(skb, stats))
 			goto nla_put_failure;
-
-		if ((chain->flags & NFT_CHAIN_HW_OFFLOAD) &&
-		    nla_put_be32(skb, NFTA_CHAIN_FLAGS,
-				 htonl(NFT_CHAIN_HW_OFFLOAD)))
-			goto nla_put_failure;
 	}
 
+	if (chain->flags &&
+	    nla_put_be32(skb, NFTA_CHAIN_FLAGS, htonl(chain->flags)))
+		goto nla_put_failure;
+
 	if (nla_put_be32(skb, NFTA_CHAIN_USE, htonl(chain->use)))
 		goto nla_put_failure;
 
@@ -1415,6 +1439,18 @@ static void nf_tables_chain_notify(const struct nft_ctx *ctx, int event)
 {
 	struct sk_buff *skb;
 	int err;
+	char *buf = kasprintf(GFP_KERNEL, "%s:%llu;%s:%llu",
+			      ctx->table->name, ctx->table->handle,
+			      ctx->chain->name, ctx->chain->handle);
+
+	audit_log_nfcfg(buf,
+			ctx->family,
+			ctx->chain->use,
+			event == NFT_MSG_NEWCHAIN ?
+				AUDIT_NFT_OP_CHAIN_REGISTER :
+				AUDIT_NFT_OP_CHAIN_UNREGISTER,
+			GFP_KERNEL);
+	kfree(buf);
 
 	if (!ctx->report &&
 	    !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
@@ -1601,7 +1637,7 @@ static void nf_tables_chain_free_chain_rules(struct nft_chain *chain)
 	kvfree(chain->rules_next);
 }
 
-static void nf_tables_chain_destroy(struct nft_ctx *ctx)
+void nf_tables_chain_destroy(struct nft_ctx *ctx)
 {
 	struct nft_chain *chain = ctx->chain;
 	struct nft_hook *hook, *next;
@@ -1883,7 +1919,7 @@ static int nft_basechain_init(struct nft_base_chain *basechain, u8 family,
 		nft_basechain_hook_init(&basechain->ops, family, hook, chain);
 	}
 
-	chain->flags |= NFT_BASE_CHAIN | flags;
+	chain->flags |= NFT_CHAIN_BASE | flags;
 	basechain->policy = NF_ACCEPT;
 	if (chain->flags & NFT_CHAIN_HW_OFFLOAD &&
 	    nft_chain_offload_priority(basechain) < 0)
@@ -1894,6 +1930,22 @@ static int nft_basechain_init(struct nft_base_chain *basechain, u8 family,
 	return 0;
 }
 
+static int nft_chain_add(struct nft_table *table, struct nft_chain *chain)
+{
+	int err;
+
+	err = rhltable_insert_key(&table->chains_ht, chain->name,
+				  &chain->rhlhead, nft_chain_ht_params);
+	if (err)
+		return err;
+
+	list_add_tail_rcu(&chain->list, &table->chains);
+
+	return 0;
+}
+
+static u64 chain_id;
+
 static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 			      u8 policy, u32 flags)
 {
@@ -1902,6 +1954,7 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	struct nft_base_chain *basechain;
 	struct nft_stats __percpu *stats;
 	struct net *net = ctx->net;
+	char name[NFT_NAME_MAXLEN];
 	struct nft_trans *trans;
 	struct nft_chain *chain;
 	struct nft_rule **rules;
@@ -1913,6 +1966,9 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	if (nla[NFTA_CHAIN_HOOK]) {
 		struct nft_chain_hook hook;
 
+		if (flags & NFT_CHAIN_BINDING)
+			return -EOPNOTSUPP;
+
 		err = nft_chain_parse_hook(net, nla, &hook, family, true);
 		if (err < 0)
 			return err;
@@ -1942,16 +1998,33 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 			return err;
 		}
 	} else {
+		if (flags & NFT_CHAIN_BASE)
+			return -EINVAL;
+		if (flags & NFT_CHAIN_HW_OFFLOAD)
+			return -EOPNOTSUPP;
+
 		chain = kzalloc(sizeof(*chain), GFP_KERNEL);
 		if (chain == NULL)
 			return -ENOMEM;
+
+		chain->flags = flags;
 	}
 	ctx->chain = chain;
 
 	INIT_LIST_HEAD(&chain->rules);
 	chain->handle = nf_tables_alloc_handle(table);
 	chain->table = table;
-	chain->name = nla_strdup(nla[NFTA_CHAIN_NAME], GFP_KERNEL);
+
+	if (nla[NFTA_CHAIN_NAME]) {
+		chain->name = nla_strdup(nla[NFTA_CHAIN_NAME], GFP_KERNEL);
+	} else {
+		if (!(flags & NFT_CHAIN_BINDING))
+			return -EINVAL;
+
+		snprintf(name, sizeof(name), "__chain%llu", ++chain_id);
+		chain->name = kstrdup(name, GFP_KERNEL);
+	}
+
 	if (!chain->name) {
 		err = -ENOMEM;
 		goto err1;
@@ -1971,16 +2044,9 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	if (err < 0)
 		goto err1;
 
-	err = rhltable_insert_key(&table->chains_ht, chain->name,
-				  &chain->rhlhead, nft_chain_ht_params);
-	if (err)
-		goto err2;
-
 	trans = nft_trans_chain_add(ctx, NFT_MSG_NEWCHAIN);
 	if (IS_ERR(trans)) {
 		err = PTR_ERR(trans);
-		rhltable_remove(&table->chains_ht, &chain->rhlhead,
-				nft_chain_ht_params);
 		goto err2;
 	}
 
@@ -1988,8 +2054,13 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
 	if (nft_is_base_chain(chain))
 		nft_trans_chain_policy(trans) = policy;
 
+	err = nft_chain_add(table, chain);
+	if (err < 0) {
+		nft_trans_destroy(trans);
+		goto err2;
+	}
+
 	table->use++;
-	list_add_tail_rcu(&chain->list, &table->chains);
 
 	return 0;
 err2:
@@ -2037,7 +2108,7 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 
 	if (nla[NFTA_CHAIN_HOOK]) {
 		if (!nft_is_base_chain(chain))
-			return -EBUSY;
+			return -EEXIST;
 
 		err = nft_chain_parse_hook(ctx->net, nla, &hook, ctx->family,
 					   false);
@@ -2047,21 +2118,21 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 		basechain = nft_base_chain(chain);
 		if (basechain->type != hook.type) {
 			nft_chain_release_hook(&hook);
-			return -EBUSY;
+			return -EEXIST;
 		}
 
 		if (ctx->family == NFPROTO_NETDEV) {
 			if (!nft_hook_list_equal(&basechain->hook_list,
 						 &hook.list)) {
 				nft_chain_release_hook(&hook);
-				return -EBUSY;
+				return -EEXIST;
 			}
 		} else {
 			ops = &basechain->ops;
 			if (ops->hooknum != hook.num ||
 			    ops->priority != hook.priority) {
 				nft_chain_release_hook(&hook);
-				return -EBUSY;
+				return -EEXIST;
 			}
 		}
 		nft_chain_release_hook(&hook);
@@ -2133,6 +2204,22 @@ err:
 	return err;
 }
 
+static struct nft_chain *nft_chain_lookup_byid(const struct net *net,
+					       const struct nlattr *nla)
+{
+	u32 id = ntohl(nla_get_be32(nla));
+	struct nft_trans *trans;
+
+	list_for_each_entry(trans, &net->nft.commit_list, list) {
+		struct nft_chain *chain = trans->ctx.chain;
+
+		if (trans->msg_type == NFT_MSG_NEWCHAIN &&
+		    id == nft_trans_chain_id(trans))
+			return chain;
+	}
+	return ERR_PTR(-ENOENT);
+}
+
 static int nf_tables_newchain(struct net *net, struct sock *nlsk,
 			      struct sk_buff *skb, const struct nlmsghdr *nlh,
 			      const struct nlattr * const nla[],
@@ -2141,9 +2228,9 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	u8 genmask = nft_genmask_next(net);
 	int family = nfmsg->nfgen_family;
+	struct nft_chain *chain = NULL;
 	const struct nlattr *attr;
 	struct nft_table *table;
-	struct nft_chain *chain;
 	u8 policy = NF_ACCEPT;
 	struct nft_ctx ctx;
 	u64 handle = 0;
@@ -2168,7 +2255,7 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
 			return PTR_ERR(chain);
 		}
 		attr = nla[NFTA_CHAIN_HANDLE];
-	} else {
+	} else if (nla[NFTA_CHAIN_NAME]) {
 		chain = nft_chain_lookup(net, table, attr, genmask);
 		if (IS_ERR(chain)) {
 			if (PTR_ERR(chain) != -ENOENT) {
@@ -2177,6 +2264,8 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
 			}
 			chain = NULL;
 		}
+	} else if (!nla[NFTA_CHAIN_ID]) {
+		return -EINVAL;
 	}
 
 	if (nla[NFTA_CHAIN_POLICY]) {
@@ -2207,6 +2296,9 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
 	else if (chain)
 		flags = chain->flags;
 
+	if (flags & ~NFT_CHAIN_FLAGS)
+		return -EOPNOTSUPP;
+
 	nft_ctx_init(&ctx, net, skb, nlh, family, table, chain, nla);
 
 	if (chain != NULL) {
@@ -2217,7 +2309,7 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
 		if (nlh->nlmsg_flags & NLM_F_REPLACE)
 			return -EOPNOTSUPP;
 
-		flags |= chain->flags & NFT_BASE_CHAIN;
+		flags |= chain->flags & NFT_CHAIN_BASE;
 		return nf_tables_updchain(&ctx, genmask, policy, flags);
 	}
 
@@ -2294,7 +2386,7 @@ static int nf_tables_delchain(struct net *net, struct sock *nlsk,
 
 /**
  *	nft_register_expr - register nf_tables expr type
- *	@ops: expr type
+ *	@type: expr type
  *
  *	Registers the expr type for use with nf_tables. Returns zero on
  *	success or a negative errno code otherwise.
@@ -2313,7 +2405,7 @@ EXPORT_SYMBOL_GPL(nft_register_expr);
 
 /**
  *	nft_unregister_expr - unregister nf_tables expr type
- *	@ops: expr type
+ *	@type: expr type
  *
  * 	Unregisters the expr typefor use with nf_tables.
  */
@@ -2428,6 +2520,7 @@ nla_put_failure:
 
 struct nft_expr_info {
 	const struct nft_expr_ops	*ops;
+	const struct nlattr		*attr;
 	struct nlattr			*tb[NFT_EXPR_MAXATTR + 1];
 };
 
@@ -2475,7 +2568,9 @@ static int nf_tables_expr_parse(const struct nft_ctx *ctx,
 	} else
 		ops = type->ops;
 
+	info->attr = nla;
 	info->ops = ops;
+
 	return 0;
 
 err1:
@@ -2611,6 +2706,7 @@ static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
 				    .len = NFT_USERDATA_MAXLEN },
 	[NFTA_RULE_ID]		= { .type = NLA_U32 },
 	[NFTA_RULE_POSITION_ID]	= { .type = NLA_U32 },
+	[NFTA_RULE_CHAIN_ID]	= { .type = NLA_U32 },
 };
 
 static int nf_tables_fill_rule_info(struct sk_buff *skb, struct net *net,
@@ -2680,6 +2776,18 @@ static void nf_tables_rule_notify(const struct nft_ctx *ctx,
 {
 	struct sk_buff *skb;
 	int err;
+	char *buf = kasprintf(GFP_KERNEL, "%s:%llu;%s:%llu",
+			      ctx->table->name, ctx->table->handle,
+			      ctx->chain->name, ctx->chain->handle);
+
+	audit_log_nfcfg(buf,
+			ctx->family,
+			rule->handle,
+			event == NFT_MSG_NEWRULE ?
+				AUDIT_NFT_OP_RULE_REGISTER :
+				AUDIT_NFT_OP_RULE_UNREGISTER,
+			GFP_KERNEL);
+	kfree(buf);
 
 	if (!ctx->report &&
 	    !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
@@ -2925,8 +3033,7 @@ static void nf_tables_rule_destroy(const struct nft_ctx *ctx,
 	kfree(rule);
 }
 
-static void nf_tables_rule_release(const struct nft_ctx *ctx,
-				   struct nft_rule *rule)
+void nf_tables_rule_release(const struct nft_ctx *ctx, struct nft_rule *rule)
 {
 	nft_rule_expr_deactivate(ctx, rule, NFT_TRANS_RELEASE);
 	nf_tables_rule_destroy(ctx, rule);
@@ -3017,10 +3124,24 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 		return PTR_ERR(table);
 	}
 
-	chain = nft_chain_lookup(net, table, nla[NFTA_RULE_CHAIN], genmask);
-	if (IS_ERR(chain)) {
-		NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_CHAIN]);
-		return PTR_ERR(chain);
+	if (nla[NFTA_RULE_CHAIN]) {
+		chain = nft_chain_lookup(net, table, nla[NFTA_RULE_CHAIN],
+					 genmask);
+		if (IS_ERR(chain)) {
+			NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_CHAIN]);
+			return PTR_ERR(chain);
+		}
+		if (nft_chain_is_bound(chain))
+			return -EOPNOTSUPP;
+
+	} else if (nla[NFTA_RULE_CHAIN_ID]) {
+		chain = nft_chain_lookup_byid(net, nla[NFTA_RULE_CHAIN_ID]);
+		if (IS_ERR(chain)) {
+			NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_CHAIN_ID]);
+			return PTR_ERR(chain);
+		}
+	} else {
+		return -EINVAL;
 	}
 
 	if (nla[NFTA_RULE_HANDLE]) {
@@ -3119,8 +3240,10 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
 	expr = nft_expr_first(rule);
 	for (i = 0; i < n; i++) {
 		err = nf_tables_newexpr(&ctx, &info[i], expr);
-		if (err < 0)
+		if (err < 0) {
+			NL_SET_BAD_ATTR(extack, info[i].attr);
 			goto err2;
+		}
 
 		if (info[i].ops->validate)
 			nft_validate_state_update(net, NFT_VALIDATE_NEED);
@@ -3232,6 +3355,8 @@ static int nf_tables_delrule(struct net *net, struct sock *nlsk,
 			NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_CHAIN]);
 			return PTR_ERR(chain);
 		}
+		if (nft_chain_is_bound(chain))
+			return -EOPNOTSUPP;
 	}
 
 	nft_ctx_init(&ctx, net, skb, nlh, family, table, chain, nla);
@@ -3682,6 +3807,18 @@ static void nf_tables_set_notify(const struct nft_ctx *ctx,
 	struct sk_buff *skb;
 	u32 portid = ctx->portid;
 	int err;
+	char *buf = kasprintf(gfp_flags, "%s:%llu;%s:%llu",
+			      ctx->table->name, ctx->table->handle,
+			      set->name, set->handle);
+
+	audit_log_nfcfg(buf,
+			ctx->family,
+			set->field_count,
+			event == NFT_MSG_NEWSET ?
+				AUDIT_NFT_OP_SET_REGISTER :
+				AUDIT_NFT_OP_SET_UNREGISTER,
+			gfp_flags);
+	kfree(buf);
 
 	if (!ctx->report &&
 	    !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
@@ -4278,7 +4415,7 @@ void nf_tables_deactivate_set(const struct nft_ctx *ctx, struct nft_set *set,
 	case NFT_TRANS_ABORT:
 	case NFT_TRANS_RELEASE:
 		set->use--;
-		/* fall through */
+		fallthrough;
 	default:
 		nf_tables_unbind_set(ctx, set, binding,
 				     phase == NFT_TRANS_COMMIT);
@@ -4798,6 +4935,18 @@ static void nf_tables_setelem_notify(const struct nft_ctx *ctx,
 	u32 portid = ctx->portid;
 	struct sk_buff *skb;
 	int err;
+	char *buf = kasprintf(GFP_KERNEL, "%s:%llu;%s:%llu",
+			      ctx->table->name, ctx->table->handle,
+			      set->name, set->handle);
+
+	audit_log_nfcfg(buf,
+			ctx->family,
+			set->handle,
+			event == NFT_MSG_NEWSETELEM ?
+				AUDIT_NFT_OP_SETELEM_REGISTER :
+				AUDIT_NFT_OP_SETELEM_UNREGISTER,
+			GFP_KERNEL);
+	kfree(buf);
 
 	if (!ctx->report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
 		return;
@@ -5160,10 +5309,8 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 			if (nft_set_ext_exists(ext, NFT_SET_EXT_DATA) ^
 			    nft_set_ext_exists(ext2, NFT_SET_EXT_DATA) ||
 			    nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF) ^
-			    nft_set_ext_exists(ext2, NFT_SET_EXT_OBJREF)) {
-				err = -EBUSY;
+			    nft_set_ext_exists(ext2, NFT_SET_EXT_OBJREF))
 				goto err_element_clash;
-			}
 			if ((nft_set_ext_exists(ext, NFT_SET_EXT_DATA) &&
 			     nft_set_ext_exists(ext2, NFT_SET_EXT_DATA) &&
 			     memcmp(nft_set_ext_data(ext),
@@ -5171,7 +5318,7 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
 			    (nft_set_ext_exists(ext, NFT_SET_EXT_OBJREF) &&
 			     nft_set_ext_exists(ext2, NFT_SET_EXT_OBJREF) &&
 			     *nft_set_ext_obj(ext) != *nft_set_ext_obj(ext2)))
-				err = -EBUSY;
+				goto err_element_clash;
 			else if (!(nlmsg_flags & NLM_F_EXCL))
 				err = 0;
 		} else if (err == -ENOTEMPTY) {
@@ -5268,11 +5415,24 @@ static int nf_tables_newsetelem(struct net *net, struct sock *nlsk,
  */
 void nft_data_hold(const struct nft_data *data, enum nft_data_types type)
 {
+	struct nft_chain *chain;
+	struct nft_rule *rule;
+
 	if (type == NFT_DATA_VERDICT) {
 		switch (data->verdict.code) {
 		case NFT_JUMP:
 		case NFT_GOTO:
-			data->verdict.chain->use++;
+			chain = data->verdict.chain;
+			chain->use++;
+
+			if (!nft_chain_is_bound(chain))
+				break;
+
+			chain->table->use++;
+			list_for_each_entry(rule, &chain->rules, list)
+				chain->use++;
+
+			nft_chain_add(chain->table, chain);
 			break;
 		}
 	}
@@ -5485,7 +5645,7 @@ struct nft_set_gc_batch *nft_set_gc_batch_alloc(const struct nft_set *set,
 
 /**
  *	nft_register_obj- register nf_tables stateful object type
- *	@obj: object type
+ *	@obj_type: object type
  *
  *	Registers the object type for use with nf_tables. Returns zero on
  *	success or a negative errno code otherwise.
@@ -5504,7 +5664,7 @@ EXPORT_SYMBOL_GPL(nft_register_obj);
 
 /**
  *	nft_unregister_obj - unregister nf_tables object type
- *	@obj: object type
+ *	@obj_type: object type
  *
  * 	Unregisters the object type for use with nf_tables.
  */
@@ -5879,6 +6039,20 @@ static int nf_tables_dump_obj(struct sk_buff *skb, struct netlink_callback *cb)
 			    obj->ops->type->type != filter->type)
 				goto cont;
 
+			if (reset) {
+				char *buf = kasprintf(GFP_ATOMIC,
+						      "%s:%llu;?:0",
+						      table->name,
+						      table->handle);
+
+				audit_log_nfcfg(buf,
+						family,
+						obj->handle,
+						AUDIT_NFT_OP_OBJ_RESET,
+						GFP_ATOMIC);
+				kfree(buf);
+			}
+
 			if (nf_tables_fill_obj_info(skb, net, NETLINK_CB(cb->skb).portid,
 						    cb->nlh->nlmsg_seq,
 						    NFT_MSG_NEWOBJ,
@@ -5989,6 +6163,18 @@ static int nf_tables_getobj(struct net *net, struct sock *nlsk,
 	if (NFNL_MSG_TYPE(nlh->nlmsg_type) == NFT_MSG_GETOBJ_RESET)
 		reset = true;
 
+	if (reset) {
+		char *buf = kasprintf(GFP_ATOMIC, "%s:%llu;?:0",
+				      table->name, table->handle);
+
+		audit_log_nfcfg(buf,
+				family,
+				obj->handle,
+				AUDIT_NFT_OP_OBJ_RESET,
+				GFP_ATOMIC);
+		kfree(buf);
+	}
+
 	err = nf_tables_fill_obj_info(skb2, net, NETLINK_CB(skb).portid,
 				      nlh->nlmsg_seq, NFT_MSG_NEWOBJ, 0,
 				      family, table, obj, reset);
@@ -6064,6 +6250,17 @@ void nft_obj_notify(struct net *net, const struct nft_table *table,
 {
 	struct sk_buff *skb;
 	int err;
+	char *buf = kasprintf(gfp, "%s:%llu;?:0",
+			      table->name, table->handle);
+
+	audit_log_nfcfg(buf,
+			family,
+			obj->handle,
+			event == NFT_MSG_NEWOBJ ?
+				AUDIT_NFT_OP_OBJ_REGISTER :
+				AUDIT_NFT_OP_OBJ_UNREGISTER,
+			gfp);
+	kfree(buf);
 
 	if (!report &&
 	    !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
@@ -6146,7 +6343,7 @@ void nf_tables_deactivate_flowtable(const struct nft_ctx *ctx,
 	case NFT_TRANS_ABORT:
 	case NFT_TRANS_RELEASE:
 		flowtable->use--;
-		/* fall through */
+		fallthrough;
 	default:
 		return;
 	}
@@ -6308,7 +6505,7 @@ static int nft_register_flowtable_net_hooks(struct net *net,
 			list_for_each_entry(hook2, &ft->hook_list, list) {
 				if (hook->ops.dev == hook2->ops.dev &&
 				    hook->ops.pf == hook2->ops.pf) {
-					err = -EBUSY;
+					err = -EEXIST;
 					goto err_unregister_net_hooks;
 				}
 			}
@@ -6860,6 +7057,18 @@ static void nf_tables_flowtable_notify(struct nft_ctx *ctx,
 {
 	struct sk_buff *skb;
 	int err;
+	char *buf = kasprintf(GFP_KERNEL, "%s:%llu;%s:%llu",
+			      flowtable->table->name, flowtable->table->handle,
+			      flowtable->name, flowtable->handle);
+
+	audit_log_nfcfg(buf,
+			ctx->family,
+			flowtable->hooknum,
+			event == NFT_MSG_NEWFLOWTABLE ?
+				AUDIT_NFT_OP_FLOWTABLE_REGISTER :
+				AUDIT_NFT_OP_FLOWTABLE_UNREGISTER,
+			GFP_KERNEL);
+	kfree(buf);
 
 	if (ctx->report &&
 	    !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
@@ -6981,6 +7190,9 @@ static void nf_tables_gen_notify(struct net *net, struct sk_buff *skb,
 	struct sk_buff *skb2;
 	int err;
 
+	audit_log_nfcfg("?:0;?:0", 0, net->nft.base_seq,
+			AUDIT_NFT_OP_GEN_REGISTER, GFP_KERNEL);
+
 	if (nlmsg_report(nlh) &&
 	    !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
 		return;
@@ -7152,7 +7364,7 @@ static int nf_tables_validate(struct net *net)
 		break;
 	case NFT_VALIDATE_NEED:
 		nft_validate_state_update(net, NFT_VALIDATE_DO);
-		/* fall through */
+		fallthrough;
 	case NFT_VALIDATE_DO:
 		list_for_each_entry(table, &net->nft.tables, list) {
 			if (nft_table_validate(net, table) < 0)
@@ -7290,6 +7502,12 @@ static void nf_tables_trans_destroy_work(struct work_struct *w)
 	}
 }
 
+void nf_tables_trans_destroy_flush_work(void)
+{
+	flush_work(&trans_destroy_work);
+}
+EXPORT_SYMBOL_GPL(nf_tables_trans_destroy_flush_work);
+
 static int nf_tables_commit_chain_prepare(struct net *net, struct nft_chain *chain)
 {
 	struct nft_rule *rule;
@@ -7412,7 +7630,7 @@ static void nft_obj_del(struct nft_object *obj)
 	list_del_rcu(&obj->list);
 }
 
-static void nft_chain_del(struct nft_chain *chain)
+void nft_chain_del(struct nft_chain *chain)
 {
 	struct nft_table *table = chain->table;
 
@@ -7472,9 +7690,9 @@ static void nf_tables_commit_release(struct net *net)
 	spin_unlock(&nf_tables_destroy_list_lock);
 
 	nf_tables_module_autoload_cleanup(net);
-	mutex_unlock(&net->nft.commit_mutex);
-
 	schedule_work(&trans_destroy_work);
+
+	mutex_unlock(&net->nft.commit_mutex);
 }
 
 static int nf_tables_commit(struct net *net, struct sk_buff *skb)
@@ -7763,6 +7981,10 @@ static int __nf_tables_abort(struct net *net, bool autoload)
 				kfree(nft_trans_chain_name(trans));
 				nft_trans_destroy(trans);
 			} else {
+				if (nft_chain_is_bound(trans->ctx.chain)) {
+					nft_trans_destroy(trans);
+					break;
+				}
 				trans->ctx.table->use--;
 				nft_chain_del(trans->ctx.chain);
 				nf_tables_unregister_hook(trans->ctx.net,
@@ -8192,6 +8414,7 @@ static const struct nla_policy nft_verdict_policy[NFTA_VERDICT_MAX + 1] = {
 	[NFTA_VERDICT_CODE]	= { .type = NLA_U32 },
 	[NFTA_VERDICT_CHAIN]	= { .type = NLA_STRING,
 				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
+	[NFTA_VERDICT_CHAIN_ID]	= { .type = NLA_U32 },
 };
 
 static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
@@ -8221,17 +8444,26 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
 		default:
 			return -EINVAL;
 		}
-		/* fall through */
+		fallthrough;
 	case NFT_CONTINUE:
 	case NFT_BREAK:
 	case NFT_RETURN:
 		break;
 	case NFT_JUMP:
 	case NFT_GOTO:
-		if (!tb[NFTA_VERDICT_CHAIN])
+		if (tb[NFTA_VERDICT_CHAIN]) {
+			chain = nft_chain_lookup(ctx->net, ctx->table,
+						 tb[NFTA_VERDICT_CHAIN],
+						 genmask);
+		} else if (tb[NFTA_VERDICT_CHAIN_ID]) {
+			chain = nft_chain_lookup_byid(ctx->net,
+						      tb[NFTA_VERDICT_CHAIN_ID]);
+			if (IS_ERR(chain))
+				return PTR_ERR(chain);
+		} else {
 			return -EINVAL;
-		chain = nft_chain_lookup(ctx->net, ctx->table,
-					 tb[NFTA_VERDICT_CHAIN], genmask);
+		}
+
 		if (IS_ERR(chain))
 			return PTR_ERR(chain);
 		if (nft_is_base_chain(chain))
@@ -8249,10 +8481,23 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
 
 static void nft_verdict_uninit(const struct nft_data *data)
 {
+	struct nft_chain *chain;
+	struct nft_rule *rule;
+
 	switch (data->verdict.code) {
 	case NFT_JUMP:
 	case NFT_GOTO:
-		data->verdict.chain->use--;
+		chain = data->verdict.chain;
+		chain->use--;
+
+		if (!nft_chain_is_bound(chain))
+			break;
+
+		chain->table->use--;
+		list_for_each_entry(rule, &chain->rules, list)
+			chain->use--;
+
+		nft_chain_del(chain);
 		break;
 	}
 }