Adding upstream version 1.2.6.upstream/1.2.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

9 files changed, 1943 insertions, 0 deletions

diff --git a/src/obj/counter.c b/src/obj/counter.c
new file mode 100644
index 0000000..ebf3e74
--- /dev/null
+++ b/src/obj/counter.c
@@ -0,0 +1,131 @@
+/*
+ * (C) 2012-2016 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "internal.h"
+#include "obj.h"
+
+static int
+nftnl_obj_counter_set(struct nftnl_obj *e, uint16_t type,
+			  const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
+
+	switch(type) {
+	case NFTNL_OBJ_CTR_BYTES:
+		memcpy(&ctr->bytes, data, sizeof(ctr->bytes));
+		break;
+	case NFTNL_OBJ_CTR_PKTS:
+		memcpy(&ctr->pkts, data, sizeof(ctr->pkts));
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *
+nftnl_obj_counter_get(const struct nftnl_obj *e, uint16_t type,
+			  uint32_t *data_len)
+{
+	struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
+
+	switch(type) {
+	case NFTNL_OBJ_CTR_BYTES:
+		*data_len = sizeof(ctr->bytes);
+		return &ctr->bytes;
+	case NFTNL_OBJ_CTR_PKTS:
+		*data_len = sizeof(ctr->pkts);
+		return &ctr->pkts;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_counter_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_COUNTER_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFTA_COUNTER_BYTES:
+	case NFTA_COUNTER_PACKETS:
+		if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_counter_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_CTR_BYTES))
+		mnl_attr_put_u64(nlh, NFTA_COUNTER_BYTES, htobe64(ctr->bytes));
+	if (e->flags & (1 << NFTNL_OBJ_CTR_PKTS))
+		mnl_attr_put_u64(nlh, NFTA_COUNTER_PACKETS, htobe64(ctr->pkts));
+}
+
+static int
+nftnl_obj_counter_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_COUNTER_MAX+1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_counter_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_COUNTER_BYTES]) {
+		ctr->bytes = be64toh(mnl_attr_get_u64(tb[NFTA_COUNTER_BYTES]));
+		e->flags |= (1 << NFTNL_OBJ_CTR_BYTES);
+	}
+	if (tb[NFTA_COUNTER_PACKETS]) {
+		ctr->pkts = be64toh(mnl_attr_get_u64(tb[NFTA_COUNTER_PACKETS]));
+		e->flags |= (1 << NFTNL_OBJ_CTR_PKTS);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_counter_snprintf(char *buf, size_t len, uint32_t flags,
+				      const struct nftnl_obj *e)
+{
+	struct nftnl_obj_counter *ctr = nftnl_obj_data(e);
+
+	return snprintf(buf, len, "pkts %"PRIu64" bytes %"PRIu64" ",
+			ctr->pkts, ctr->bytes);
+}
+
+struct obj_ops obj_ops_counter = {
+	.name		= "counter",
+	.type		= NFT_OBJECT_COUNTER,
+	.alloc_len	= sizeof(struct nftnl_obj_counter),
+	.max_attr	= NFTA_COUNTER_MAX,
+	.set		= nftnl_obj_counter_set,
+	.get		= nftnl_obj_counter_get,
+	.parse		= nftnl_obj_counter_parse,
+	.build		= nftnl_obj_counter_build,
+	.output		= nftnl_obj_counter_snprintf,
+};
diff --git a/src/obj/ct_expect.c b/src/obj/ct_expect.c
new file mode 100644
index 0000000..810ba9a
--- /dev/null
+++ b/src/obj/ct_expect.c
@@ -0,0 +1,200 @@
+/*
+ * (C) 2019 by Stéphane Veyret <sveyret@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <arpa/inet.h>
+#include <errno.h>
+
+#include <libmnl/libmnl.h>
+
+#include "obj.h"
+
+static int nftnl_obj_ct_expect_set(struct nftnl_obj *e, uint16_t type,
+				   const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_ct_expect *exp = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_CT_EXPECT_L3PROTO:
+		memcpy(&exp->l3proto, data, sizeof(exp->l3proto));
+		break;
+	case NFTNL_OBJ_CT_EXPECT_L4PROTO:
+		memcpy(&exp->l4proto, data, sizeof(exp->l4proto));
+		break;
+	case NFTNL_OBJ_CT_EXPECT_DPORT:
+		memcpy(&exp->dport, data, sizeof(exp->dport));
+		break;
+	case NFTNL_OBJ_CT_EXPECT_TIMEOUT:
+		memcpy(&exp->timeout, data, sizeof(exp->timeout));
+		break;
+	case NFTNL_OBJ_CT_EXPECT_SIZE:
+		memcpy(&exp->size, data, sizeof(exp->size));
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_ct_expect_get(const struct nftnl_obj *e,
+					   uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_ct_expect *exp = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_CT_EXPECT_L3PROTO:
+		*data_len = sizeof(exp->l3proto);
+		return &exp->l3proto;
+	case NFTNL_OBJ_CT_EXPECT_L4PROTO:
+		*data_len = sizeof(exp->l4proto);
+		return &exp->l4proto;
+	case NFTNL_OBJ_CT_EXPECT_DPORT:
+		*data_len = sizeof(exp->dport);
+		return &exp->dport;
+	case NFTNL_OBJ_CT_EXPECT_TIMEOUT:
+		*data_len = sizeof(exp->timeout);
+		return &exp->timeout;
+	case NFTNL_OBJ_CT_EXPECT_SIZE:
+		*data_len = sizeof(exp->size);
+		return &exp->size;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_ct_expect_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_CT_EXPECT_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_CT_EXPECT_L3PROTO:
+		if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_EXPECT_L4PROTO:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_EXPECT_DPORT:
+		if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_EXPECT_TIMEOUT:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_EXPECT_SIZE:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_ct_expect_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_ct_expect *exp = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_L3PROTO))
+		mnl_attr_put_u16(nlh, NFTA_CT_EXPECT_L3PROTO, htons(exp->l3proto));
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_L4PROTO))
+		mnl_attr_put_u8(nlh, NFTA_CT_EXPECT_L4PROTO, exp->l4proto);
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_DPORT))
+		mnl_attr_put_u16(nlh, NFTA_CT_EXPECT_DPORT, htons(exp->dport));
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_TIMEOUT))
+		mnl_attr_put_u32(nlh, NFTA_CT_EXPECT_TIMEOUT, exp->timeout);
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_SIZE))
+		mnl_attr_put_u8(nlh, NFTA_CT_EXPECT_SIZE, exp->size);
+}
+
+static int
+nftnl_obj_ct_expect_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_ct_expect *exp = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_CT_EXPECT_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_ct_expect_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_CT_EXPECT_L3PROTO]) {
+		exp->l3proto = ntohs(mnl_attr_get_u16(tb[NFTA_CT_EXPECT_L3PROTO]));
+		e->flags |= (1 << NFTNL_OBJ_CT_EXPECT_L3PROTO);
+	}
+	if (tb[NFTA_CT_EXPECT_L4PROTO]) {
+		exp->l4proto = mnl_attr_get_u8(tb[NFTA_CT_EXPECT_L4PROTO]);
+		e->flags |= (1 << NFTNL_OBJ_CT_EXPECT_L4PROTO);
+	}
+	if (tb[NFTA_CT_EXPECT_DPORT]) {
+		exp->dport = ntohs(mnl_attr_get_u16(tb[NFTA_CT_EXPECT_DPORT]));
+		e->flags |= (1 << NFTNL_OBJ_CT_EXPECT_DPORT);
+	}
+	if (tb[NFTA_CT_EXPECT_TIMEOUT]) {
+		exp->timeout = mnl_attr_get_u32(tb[NFTA_CT_EXPECT_TIMEOUT]);
+		e->flags |= (1 << NFTNL_OBJ_CT_EXPECT_TIMEOUT);
+	}
+	if (tb[NFTA_CT_EXPECT_SIZE]) {
+		exp->size = mnl_attr_get_u8(tb[NFTA_CT_EXPECT_SIZE]);
+		e->flags |= (1 << NFTNL_OBJ_CT_EXPECT_SIZE);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_ct_expect_snprintf(char *buf, size_t remain,
+					uint32_t flags,
+					const struct nftnl_obj *e)
+{
+	struct nftnl_obj_ct_expect *exp = nftnl_obj_data(e);
+	int ret = 0, offset = 0;
+
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_L3PROTO)) {
+		ret = snprintf(buf + offset, remain,
+			       "family %d ", exp->l3proto);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_L4PROTO)) {
+		ret = snprintf(buf + offset, remain,
+			       "protocol %d ", exp->l4proto);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_DPORT)) {
+		ret = snprintf(buf + offset, remain,
+			       "dport %d ", exp->dport);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_TIMEOUT)) {
+		ret = snprintf(buf + offset, remain,
+			       "timeout %d ", exp->timeout);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_CT_EXPECT_SIZE)) {
+		ret = snprintf(buf + offset, remain, "size %d ", exp->size);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+
+	buf[offset] = '\0';
+	return offset;
+}
+
+struct obj_ops obj_ops_ct_expect = {
+	.name		= "ct_expect",
+	.type		= NFT_OBJECT_CT_EXPECT,
+	.alloc_len	= sizeof(struct nftnl_obj_ct_expect),
+	.max_attr	= NFTA_CT_EXPECT_MAX,
+	.set		= nftnl_obj_ct_expect_set,
+	.get		= nftnl_obj_ct_expect_get,
+	.parse		= nftnl_obj_ct_expect_parse,
+	.build		= nftnl_obj_ct_expect_build,
+	.output		= nftnl_obj_ct_expect_snprintf,
+};
diff --git a/src/obj/ct_helper.c b/src/obj/ct_helper.c
new file mode 100644
index 0000000..a31bd6f
--- /dev/null
+++ b/src/obj/ct_helper.c
@@ -0,0 +1,154 @@
+/*
+ * (C) 2017 Red Hat GmbH
+ * Author: Florian Westphal <fw@strlen.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include "internal.h"
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "obj.h"
+
+static int nftnl_obj_ct_helper_set(struct nftnl_obj *e, uint16_t type,
+				   const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_ct_helper *helper = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_CT_HELPER_NAME:
+		snprintf(helper->name, sizeof(helper->name), "%s", (const char *)data);
+		break;
+	case NFTNL_OBJ_CT_HELPER_L3PROTO:
+		memcpy(&helper->l3proto, data, sizeof(helper->l3proto));
+		break;
+	case NFTNL_OBJ_CT_HELPER_L4PROTO:
+		memcpy(&helper->l4proto, data, sizeof(helper->l4proto));
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_ct_helper_get(const struct nftnl_obj *e,
+					   uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_ct_helper *helper = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_CT_HELPER_NAME:
+		*data_len = strlen(helper->name);
+		return helper->name;
+	case NFTNL_OBJ_CT_HELPER_L3PROTO:
+		*data_len = sizeof(helper->l3proto);
+		return &helper->l3proto;
+	case NFTNL_OBJ_CT_HELPER_L4PROTO:
+		*data_len = sizeof(helper->l4proto);
+		return &helper->l4proto;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_ct_helper_cb(const struct nlattr *attr, void *data)
+{
+	const struct nftnl_obj_ct_helper *helper = NULL;
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_CT_HELPER_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_CT_HELPER_NAME:
+		if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0)
+			abi_breakage();
+		if (mnl_attr_get_payload_len(attr) >= sizeof(helper->name))
+			abi_breakage();
+		break;
+	case NFTA_CT_HELPER_L3PROTO:
+		if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_HELPER_L4PROTO:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_ct_helper_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_ct_helper *helper = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_CT_HELPER_NAME))
+		mnl_attr_put_str(nlh, NFTA_CT_HELPER_NAME, helper->name);
+	if (e->flags & (1 << NFTNL_OBJ_CT_HELPER_L3PROTO))
+		mnl_attr_put_u16(nlh, NFTA_CT_HELPER_L3PROTO, htons(helper->l3proto));
+	if (e->flags & (1 << NFTNL_OBJ_CT_HELPER_L4PROTO))
+		mnl_attr_put_u8(nlh, NFTA_CT_HELPER_L4PROTO, helper->l4proto);
+}
+
+static int
+nftnl_obj_ct_helper_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_ct_helper *helper = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_CT_HELPER_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_ct_helper_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_CT_HELPER_NAME]) {
+		snprintf(helper->name, sizeof(helper->name), "%s",
+			 mnl_attr_get_str(tb[NFTA_CT_HELPER_NAME]));
+		e->flags |= (1 << NFTNL_OBJ_CT_HELPER_NAME);
+	}
+	if (tb[NFTA_CT_HELPER_L3PROTO]) {
+		helper->l3proto = ntohs(mnl_attr_get_u16(tb[NFTA_CT_HELPER_L3PROTO]));
+		e->flags |= (1 << NFTNL_OBJ_CT_HELPER_L3PROTO);
+	}
+	if (tb[NFTA_CT_HELPER_L4PROTO]) {
+		helper->l4proto = mnl_attr_get_u8(tb[NFTA_CT_HELPER_L4PROTO]);
+		e->flags |= (1 << NFTNL_OBJ_CT_HELPER_L4PROTO);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_ct_helper_snprintf(char *buf, size_t len,
+				       uint32_t flags,
+				       const struct nftnl_obj *e)
+{
+	struct nftnl_obj_ct_helper *helper = nftnl_obj_data(e);
+
+	return snprintf(buf, len, "name %s family %d protocol %d ",
+			helper->name, helper->l3proto, helper->l4proto);
+}
+
+struct obj_ops obj_ops_ct_helper = {
+	.name		= "ct_helper",
+	.type		= NFT_OBJECT_CT_HELPER,
+	.alloc_len	= sizeof(struct nftnl_obj_ct_helper),
+	.max_attr	= NFTA_CT_HELPER_MAX,
+	.set		= nftnl_obj_ct_helper_set,
+	.get		= nftnl_obj_ct_helper_get,
+	.parse		= nftnl_obj_ct_helper_parse,
+	.build		= nftnl_obj_ct_helper_build,
+	.output		= nftnl_obj_ct_helper_snprintf,
+};
diff --git a/src/obj/ct_timeout.c b/src/obj/ct_timeout.c
new file mode 100644
index 0000000..65b48bd
--- /dev/null
+++ b/src/obj/ct_timeout.c
@@ -0,0 +1,320 @@
+/*
+ * (C) 2018 by Harsha Sharma <harshasharmaiitr@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include "internal.h"
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "obj.h"
+
+static const char *const tcp_state_to_name[] = {
+	[NFTNL_CTTIMEOUT_TCP_SYN_SENT]		= "SYN_SENT",
+	[NFTNL_CTTIMEOUT_TCP_SYN_RECV]		= "SYN_RECV",
+	[NFTNL_CTTIMEOUT_TCP_ESTABLISHED]	= "ESTABLISHED",
+	[NFTNL_CTTIMEOUT_TCP_FIN_WAIT]		= "FIN_WAIT",
+	[NFTNL_CTTIMEOUT_TCP_CLOSE_WAIT]	= "CLOSE_WAIT",
+	[NFTNL_CTTIMEOUT_TCP_LAST_ACK]		= "LAST_ACK",
+	[NFTNL_CTTIMEOUT_TCP_TIME_WAIT]		= "TIME_WAIT",
+	[NFTNL_CTTIMEOUT_TCP_CLOSE]		= "CLOSE",
+	[NFTNL_CTTIMEOUT_TCP_SYN_SENT2]		= "SYN_SENT2",
+	[NFTNL_CTTIMEOUT_TCP_RETRANS]		= "RETRANS",
+	[NFTNL_CTTIMEOUT_TCP_UNACK]		= "UNACKNOWLEDGED",
+};
+
+static uint32_t tcp_dflt_timeout[] = {
+	[NFTNL_CTTIMEOUT_TCP_SYN_SENT]		= 120,
+	[NFTNL_CTTIMEOUT_TCP_SYN_RECV]		= 60,
+	[NFTNL_CTTIMEOUT_TCP_ESTABLISHED]	= 432000,
+	[NFTNL_CTTIMEOUT_TCP_FIN_WAIT]		= 120,
+	[NFTNL_CTTIMEOUT_TCP_CLOSE_WAIT]	= 60,
+	[NFTNL_CTTIMEOUT_TCP_LAST_ACK]		= 30,
+	[NFTNL_CTTIMEOUT_TCP_TIME_WAIT]		= 120,
+	[NFTNL_CTTIMEOUT_TCP_CLOSE]		= 10,
+	[NFTNL_CTTIMEOUT_TCP_SYN_SENT2] 	= 120,
+	[NFTNL_CTTIMEOUT_TCP_RETRANS]		= 300,
+	[NFTNL_CTTIMEOUT_TCP_UNACK]		= 300,
+};
+
+static const char *const udp_state_to_name[] = {
+	[NFTNL_CTTIMEOUT_UDP_UNREPLIED]		= "UNREPLIED",
+	[NFTNL_CTTIMEOUT_UDP_REPLIED]		= "REPLIED",
+};
+
+static uint32_t udp_dflt_timeout[] = {
+	[NFTNL_CTTIMEOUT_UDP_UNREPLIED]		= 30,
+	[NFTNL_CTTIMEOUT_UDP_REPLIED]		= 180,
+};
+
+static struct {
+	uint32_t attr_max;
+	const char *const *state_to_name;
+	uint32_t *dflt_timeout;
+} timeout_protocol[IPPROTO_MAX] = {
+	[IPPROTO_TCP]	= {
+		.attr_max	= NFTNL_CTTIMEOUT_TCP_MAX,
+		.state_to_name	= tcp_state_to_name,
+		.dflt_timeout	= tcp_dflt_timeout,
+	},
+	[IPPROTO_UDP]	= {
+		.attr_max	= NFTNL_CTTIMEOUT_UDP_MAX,
+		.state_to_name	= udp_state_to_name,
+		.dflt_timeout	= udp_dflt_timeout,
+	},
+};
+
+struct _container_policy_cb {
+	unsigned int nlattr_max;
+	void *tb;
+};
+
+static int
+nftnl_timeout_policy_attr_set_u32(struct nftnl_obj *e,
+				 uint32_t type, uint32_t data)
+{
+	struct nftnl_obj_ct_timeout *t = nftnl_obj_data(e);
+
+	if (type >= NFTNL_CTTIMEOUT_ARRAY_MAX)
+		return -1;
+
+	t->timeout[type] = data;
+
+	if (!(e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_ARRAY)))
+		e->flags |= (1 << NFTNL_OBJ_CT_TIMEOUT_ARRAY);
+
+	return 0;
+}
+
+static int
+parse_timeout_attr_policy_cb(const struct nlattr *attr, void *data)
+{
+	struct _container_policy_cb *data_cb = data;
+	const struct nlattr **tb = data_cb->tb;
+	uint16_t type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, data_cb->nlattr_max) < 0)
+		return MNL_CB_OK;
+
+	if (type > 0 && type <= data_cb->nlattr_max) {
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		tb[type - 1] = attr;
+	}
+	return MNL_CB_OK;
+}
+
+static int
+timeout_parse_attr_data(struct nftnl_obj *e,
+			const struct nlattr *nest)
+{
+	struct nftnl_obj_ct_timeout *t = nftnl_obj_data(e);
+	unsigned int attr_max = timeout_protocol[t->l4proto].attr_max;
+	struct nlattr *tb[attr_max];
+	struct _container_policy_cb cnt = {
+		.nlattr_max = attr_max,
+		.tb = tb,
+	};
+	unsigned int i;
+
+	memset(tb, 0, sizeof(struct nlattr *) * attr_max);
+
+	if (mnl_attr_parse_nested(nest, parse_timeout_attr_policy_cb, &cnt) < 0)
+		return -1;
+
+	for (i = 0; i < array_size(tb); i++) {
+		if (tb[i]) {
+			nftnl_timeout_policy_attr_set_u32(e, i,
+				ntohl(mnl_attr_get_u32(tb[i])));
+		}
+	}
+	return 0;
+}
+
+static int nftnl_obj_ct_timeout_set(struct nftnl_obj *e, uint16_t type,
+				   const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_ct_timeout *timeout = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_CT_TIMEOUT_L3PROTO:
+		memcpy(&timeout->l3proto, data, sizeof(timeout->l3proto));
+		break;
+	case NFTNL_OBJ_CT_TIMEOUT_L4PROTO:
+		memcpy(&timeout->l4proto, data, sizeof(timeout->l4proto));
+		break;
+	case NFTNL_OBJ_CT_TIMEOUT_ARRAY:
+		memcpy(timeout->timeout, data,
+		       sizeof(uint32_t) * NFTNL_CTTIMEOUT_ARRAY_MAX);
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_ct_timeout_get(const struct nftnl_obj *e,
+					   uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_ct_timeout *timeout = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_CT_TIMEOUT_L3PROTO:
+		*data_len = sizeof(timeout->l3proto);
+		return &timeout->l3proto;
+	case NFTNL_OBJ_CT_TIMEOUT_L4PROTO:
+		*data_len = sizeof(timeout->l4proto);
+		return &timeout->l4proto;
+	case NFTNL_OBJ_CT_TIMEOUT_ARRAY:
+		*data_len = sizeof(uint32_t) * NFTNL_CTTIMEOUT_ARRAY_MAX;
+		return timeout->timeout;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_ct_timeout_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_CT_TIMEOUT_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_CT_TIMEOUT_L3PROTO:
+		if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_TIMEOUT_L4PROTO:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	case NFTA_CT_TIMEOUT_DATA:
+		if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_ct_timeout_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_ct_timeout *timeout = nftnl_obj_data(e);
+	struct nlattr *nest;
+
+	if (e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_L3PROTO))
+		mnl_attr_put_u16(nlh, NFTA_CT_TIMEOUT_L3PROTO, htons(timeout->l3proto));
+	if (e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_L4PROTO))
+		mnl_attr_put_u8(nlh, NFTA_CT_TIMEOUT_L4PROTO, timeout->l4proto);
+	if (e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_ARRAY)) {
+		int i;
+
+		nest = mnl_attr_nest_start(nlh, NFTA_CT_TIMEOUT_DATA);
+		for (i = 0; i < timeout_protocol[timeout->l4proto].attr_max; i++)
+			mnl_attr_put_u32(nlh, i+1, htonl(timeout->timeout[i]));
+
+		mnl_attr_nest_end(nlh, nest);
+	}
+}
+
+static int
+nftnl_obj_ct_timeout_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_ct_timeout *timeout = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_CT_TIMEOUT_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_ct_timeout_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_CT_TIMEOUT_L3PROTO]) {
+		timeout->l3proto = ntohs(mnl_attr_get_u16(tb[NFTA_CT_TIMEOUT_L3PROTO]));
+		e->flags |= (1 << NFTNL_OBJ_CT_TIMEOUT_L3PROTO);
+	}
+	if (tb[NFTA_CT_TIMEOUT_L4PROTO]) {
+		timeout->l4proto = mnl_attr_get_u8(tb[NFTA_CT_TIMEOUT_L4PROTO]);
+		e->flags |= (1 << NFTNL_OBJ_CT_TIMEOUT_L4PROTO);
+	}
+	if (tb[NFTA_CT_TIMEOUT_DATA]) {
+		if (timeout_parse_attr_data(e, tb[NFTA_CT_TIMEOUT_DATA]) < 0)
+			return -1;
+		e->flags |= (1 << NFTNL_OBJ_CT_TIMEOUT_ARRAY);
+	}
+	return 0;
+}
+
+static int nftnl_obj_ct_timeout_snprintf(char *buf, size_t remain,
+				       uint32_t flags,
+				       const struct nftnl_obj *e)
+{
+	int ret = 0, offset = 0;
+
+	struct nftnl_obj_ct_timeout *timeout = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_L3PROTO)) {
+		ret = snprintf(buf + offset, remain, "family %d ",
+			       timeout->l3proto);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_L4PROTO)) {
+		ret = snprintf(buf + offset, remain, "protocol %d ",
+				timeout->l4proto);
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_CT_TIMEOUT_ARRAY)) {
+		uint8_t l4num = timeout->l4proto;
+		int i;
+
+		/* default to generic protocol tracker. */
+		if (timeout_protocol[timeout->l4proto].attr_max == 0)
+			l4num = IPPROTO_RAW;
+
+		ret = snprintf(buf + offset, remain, "policy = {");
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+
+		for (i = 0; i < timeout_protocol[l4num].attr_max; i++) {
+			const char *state_name =
+				timeout_protocol[l4num].state_to_name[i][0] ?
+				timeout_protocol[l4num].state_to_name[i] :
+				"UNKNOWN";
+
+			if (timeout->timeout[i] != timeout_protocol[l4num].dflt_timeout[i]) {
+				ret = snprintf(buf + offset, remain,
+					"%s = %u,", state_name, timeout->timeout[i]);
+				SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+			}
+		}
+
+		ret = snprintf(buf + offset, remain, "}");
+		SNPRINTF_BUFFER_SIZE(ret, remain, offset);
+	}
+	buf[offset] = '\0';
+
+	return offset;
+}
+
+struct obj_ops obj_ops_ct_timeout = {
+	.name		= "ct_timeout",
+	.type		= NFT_OBJECT_CT_TIMEOUT,
+	.alloc_len	= sizeof(struct nftnl_obj_ct_timeout),
+	.max_attr	= NFTA_CT_TIMEOUT_MAX,
+	.set		= nftnl_obj_ct_timeout_set,
+	.get		= nftnl_obj_ct_timeout_get,
+	.parse		= nftnl_obj_ct_timeout_parse,
+	.build		= nftnl_obj_ct_timeout_build,
+	.output		= nftnl_obj_ct_timeout_snprintf,
+};
diff --git a/src/obj/limit.c b/src/obj/limit.c
new file mode 100644
index 0000000..d7b1aed
--- /dev/null
+++ b/src/obj/limit.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2017 Pablo M. Bermudo Garay <pablombg@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include "internal.h"
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "obj.h"
+
+static int nftnl_obj_limit_set(struct nftnl_obj *e, uint16_t type,
+			       const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_limit *limit = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_LIMIT_RATE:
+		memcpy(&limit->rate, data, sizeof(limit->rate));
+		break;
+	case NFTNL_OBJ_LIMIT_UNIT:
+		memcpy(&limit->unit, data, sizeof(limit->unit));
+		break;
+	case NFTNL_OBJ_LIMIT_BURST:
+		memcpy(&limit->burst, data, sizeof(limit->burst));
+		break;
+	case NFTNL_OBJ_LIMIT_TYPE:
+		memcpy(&limit->type, data, sizeof(limit->type));
+		break;
+	case NFTNL_OBJ_LIMIT_FLAGS:
+		memcpy(&limit->flags, data, sizeof(limit->flags));
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_limit_get(const struct nftnl_obj *e,
+				       uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_limit *limit = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_LIMIT_RATE:
+		*data_len = sizeof(limit->rate);
+		return &limit->rate;
+	case NFTNL_OBJ_LIMIT_UNIT:
+		*data_len = sizeof(limit->unit);
+		return &limit->unit;
+	case NFTNL_OBJ_LIMIT_BURST:
+		*data_len = sizeof(limit->burst);
+		return &limit->burst;
+	case NFTNL_OBJ_LIMIT_TYPE:
+		*data_len = sizeof(limit->type);
+		return &limit->type;
+	case NFTNL_OBJ_LIMIT_FLAGS:
+		*data_len = sizeof(limit->flags);
+		return &limit->flags;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_limit_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_LIMIT_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_LIMIT_RATE:
+	case NFTA_LIMIT_UNIT:
+		if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0)
+			abi_breakage();
+		break;
+	case NFTA_LIMIT_BURST:
+	case NFTA_LIMIT_TYPE:
+	case NFTA_LIMIT_FLAGS:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void nftnl_obj_limit_build(struct nlmsghdr *nlh,
+				  const struct nftnl_obj *e)
+{
+	struct nftnl_obj_limit *limit = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_LIMIT_RATE))
+		mnl_attr_put_u64(nlh, NFTA_LIMIT_RATE, htobe64(limit->rate));
+	if (e->flags & (1 << NFTNL_OBJ_LIMIT_UNIT))
+		mnl_attr_put_u64(nlh, NFTA_LIMIT_UNIT, htobe64(limit->unit));
+	if (e->flags & (1 << NFTNL_OBJ_LIMIT_BURST))
+		mnl_attr_put_u32(nlh, NFTA_LIMIT_BURST, htonl(limit->burst));
+	if (e->flags & (1 << NFTNL_OBJ_LIMIT_TYPE))
+		mnl_attr_put_u32(nlh, NFTA_LIMIT_TYPE, htonl(limit->type));
+	if (e->flags & (1 << NFTNL_OBJ_LIMIT_FLAGS))
+		mnl_attr_put_u32(nlh, NFTA_LIMIT_FLAGS, htonl(limit->flags));
+}
+
+static int nftnl_obj_limit_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_limit *limit = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_LIMIT_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_limit_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_LIMIT_RATE]) {
+		limit->rate = be64toh(mnl_attr_get_u64(tb[NFTA_LIMIT_RATE]));
+		e->flags |= (1 << NFTNL_OBJ_LIMIT_RATE);
+	}
+	if (tb[NFTA_LIMIT_UNIT]) {
+		limit->unit = be64toh(mnl_attr_get_u64(tb[NFTA_LIMIT_UNIT]));
+		e->flags |= (1 << NFTNL_OBJ_LIMIT_UNIT);
+	}
+	if (tb[NFTA_LIMIT_BURST]) {
+		limit->burst = ntohl(mnl_attr_get_u32(tb[NFTA_LIMIT_BURST]));
+		e->flags |= (1 << NFTNL_OBJ_LIMIT_BURST);
+	}
+	if (tb[NFTA_LIMIT_TYPE]) {
+		limit->type = ntohl(mnl_attr_get_u32(tb[NFTA_LIMIT_TYPE]));
+		e->flags |= (1 << NFTNL_OBJ_LIMIT_TYPE);
+	}
+	if (tb[NFTA_LIMIT_FLAGS]) {
+		limit->flags = ntohl(mnl_attr_get_u32(tb[NFTA_LIMIT_FLAGS]));
+		e->flags |= (1 << NFTNL_OBJ_LIMIT_FLAGS);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_limit_snprintf(char *buf, size_t len,
+				    uint32_t flags,
+				    const struct nftnl_obj *e)
+{
+	struct nftnl_obj_limit *limit = nftnl_obj_data(e);
+
+	return snprintf(buf, len, "rate %"PRIu64" unit %"PRIu64" burst %u "
+			"type %u flags %u ", limit->rate, limit->unit,
+			limit->burst, limit->type, limit->flags);
+}
+
+struct obj_ops obj_ops_limit = {
+	.name		= "limit",
+	.type		= NFT_OBJECT_LIMIT,
+	.alloc_len	= sizeof(struct nftnl_obj_limit),
+	.max_attr	= NFTA_LIMIT_MAX,
+	.set		= nftnl_obj_limit_set,
+	.get		= nftnl_obj_limit_get,
+	.parse		= nftnl_obj_limit_parse,
+	.build		= nftnl_obj_limit_build,
+	.output		= nftnl_obj_limit_snprintf,
+};
diff --git a/src/obj/quota.c b/src/obj/quota.c
new file mode 100644
index 0000000..6c7559a
--- /dev/null
+++ b/src/obj/quota.c
@@ -0,0 +1,148 @@
+/*
+ * (C) 2012-2016 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include "internal.h"
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "obj.h"
+
+static int nftnl_obj_quota_set(struct nftnl_obj *e, uint16_t type,
+				const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_quota *quota = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_QUOTA_BYTES:
+		memcpy(&quota->bytes, data, sizeof(quota->bytes));
+		break;
+	case NFTNL_OBJ_QUOTA_CONSUMED:
+		memcpy(&quota->consumed, data, sizeof(quota->consumed));
+		break;
+	case NFTNL_OBJ_QUOTA_FLAGS:
+		memcpy(&quota->flags, data, sizeof(quota->flags));
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_quota_get(const struct nftnl_obj *e,
+					uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_quota *quota = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_QUOTA_BYTES:
+		*data_len = sizeof(quota->bytes);
+		return &quota->bytes;
+	case NFTNL_OBJ_QUOTA_CONSUMED:
+		*data_len = sizeof(quota->consumed);
+		return &quota->consumed;
+	case NFTNL_OBJ_QUOTA_FLAGS:
+		*data_len = sizeof(quota->flags);
+		return &quota->flags;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_quota_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_QUOTA_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFTA_QUOTA_BYTES:
+	case NFTA_QUOTA_CONSUMED:
+		if (mnl_attr_validate(attr, MNL_TYPE_U64) < 0)
+			abi_breakage();
+		break;
+	case NFTA_QUOTA_FLAGS:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_quota_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_quota *quota = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_QUOTA_BYTES))
+		mnl_attr_put_u64(nlh, NFTA_QUOTA_BYTES, htobe64(quota->bytes));
+	if (e->flags & (1 << NFTNL_OBJ_QUOTA_CONSUMED))
+		mnl_attr_put_u64(nlh, NFTA_QUOTA_CONSUMED,
+				 htobe64(quota->consumed));
+	if (e->flags & (1 << NFTNL_OBJ_QUOTA_FLAGS))
+		mnl_attr_put_u32(nlh, NFTA_QUOTA_FLAGS, htonl(quota->flags));
+}
+
+static int
+nftnl_obj_quota_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_quota *quota = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_QUOTA_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_quota_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_QUOTA_BYTES]) {
+		quota->bytes = be64toh(mnl_attr_get_u64(tb[NFTA_QUOTA_BYTES]));
+		e->flags |= (1 << NFTNL_OBJ_QUOTA_BYTES);
+	}
+	if (tb[NFTA_QUOTA_CONSUMED]) {
+		quota->consumed =
+			be64toh(mnl_attr_get_u64(tb[NFTA_QUOTA_CONSUMED]));
+		e->flags |= (1 << NFTNL_OBJ_QUOTA_CONSUMED);
+	}
+	if (tb[NFTA_QUOTA_FLAGS]) {
+		quota->flags = ntohl(mnl_attr_get_u32(tb[NFTA_QUOTA_FLAGS]));
+		e->flags |= (1 << NFTNL_OBJ_QUOTA_FLAGS);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_quota_snprintf(char *buf, size_t len,
+				       uint32_t flags,
+				       const struct nftnl_obj *e)
+{
+	struct nftnl_obj_quota *quota = nftnl_obj_data(e);
+
+	return snprintf(buf, len, "bytes %"PRIu64" flags %u ",
+			quota->bytes, quota->flags);
+}
+
+struct obj_ops obj_ops_quota = {
+	.name		= "quota",
+	.type		= NFT_OBJECT_QUOTA,
+	.alloc_len	= sizeof(struct nftnl_obj_quota),
+	.max_attr	= NFTA_QUOTA_MAX,
+	.set		= nftnl_obj_quota_set,
+	.get		= nftnl_obj_quota_get,
+	.parse		= nftnl_obj_quota_parse,
+	.build		= nftnl_obj_quota_build,
+	.output		= nftnl_obj_quota_snprintf,
+};
diff --git a/src/obj/secmark.c b/src/obj/secmark.c
new file mode 100644
index 0000000..e5c24b3
--- /dev/null
+++ b/src/obj/secmark.c
@@ -0,0 +1,120 @@
+/*
+ * (C) 2012-2016 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include "internal.h"
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "obj.h"
+
+static int nftnl_obj_secmark_set(struct nftnl_obj *e, uint16_t type,
+				const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_secmark *secmark = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_SECMARK_CTX:
+		snprintf(secmark->ctx, sizeof(secmark->ctx), "%s", (const char *)data);
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_secmark_get(const struct nftnl_obj *e,
+					uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_secmark *secmark = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_SECMARK_CTX:
+		*data_len = strlen(secmark->ctx);
+		return secmark->ctx;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_secmark_cb(const struct nlattr *attr, void *data)
+{
+	const struct nftnl_obj_secmark *secmark = NULL;
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_SECMARK_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFTA_SECMARK_CTX:
+		if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0)
+			abi_breakage();
+		if (mnl_attr_get_payload_len(attr) >= sizeof(secmark->ctx))
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_secmark_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_secmark *secmark = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_SECMARK_CTX))
+		mnl_attr_put_str(nlh, NFTA_SECMARK_CTX, secmark->ctx);
+}
+
+static int
+nftnl_obj_secmark_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_secmark *secmark = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_SECMARK_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_secmark_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_SECMARK_CTX]) {
+		snprintf(secmark->ctx, sizeof(secmark->ctx), "%s",
+			 mnl_attr_get_str(tb[NFTA_SECMARK_CTX]));
+		e->flags |= (1 << NFTNL_OBJ_SECMARK_CTX);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_secmark_snprintf(char *buf, size_t len,
+				       uint32_t flags,
+				       const struct nftnl_obj *e)
+{
+	struct nftnl_obj_secmark *secmark = nftnl_obj_data(e);
+
+	return snprintf(buf, len, "context %s ", secmark->ctx);
+}
+
+struct obj_ops obj_ops_secmark = {
+	.name		= "secmark",
+	.type		= NFT_OBJECT_SECMARK,
+	.alloc_len	= sizeof(struct nftnl_obj_secmark),
+	.max_attr	= NFTA_SECMARK_MAX,
+	.set		= nftnl_obj_secmark_set,
+	.get		= nftnl_obj_secmark_get,
+	.parse		= nftnl_obj_secmark_parse,
+	.build		= nftnl_obj_secmark_build,
+	.output		= nftnl_obj_secmark_snprintf,
+};
diff --git a/src/obj/synproxy.c b/src/obj/synproxy.c
new file mode 100644
index 0000000..baef5c2
--- /dev/null
+++ b/src/obj/synproxy.c
@@ -0,0 +1,147 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include "internal.h"
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "obj.h"
+
+static int nftnl_obj_synproxy_set(struct nftnl_obj *e, uint16_t type,
+				  const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_synproxy *synproxy = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_SYNPROXY_MSS:
+		synproxy->mss = *((uint16_t *)data);
+		break;
+	case NFTNL_OBJ_SYNPROXY_WSCALE:
+		synproxy->wscale = *((uint8_t *)data);
+		break;
+	case NFTNL_OBJ_SYNPROXY_FLAGS:
+		synproxy->flags = *((uint32_t *)data);
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *nftnl_obj_synproxy_get(const struct nftnl_obj *e,
+					  uint16_t type, uint32_t *data_len)
+{
+	struct nftnl_obj_synproxy *synproxy = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_SYNPROXY_MSS:
+		*data_len = sizeof(synproxy->mss);
+		return &synproxy->mss;
+	case NFTNL_OBJ_SYNPROXY_WSCALE:
+		*data_len = sizeof(synproxy->wscale);
+		return &synproxy->wscale;
+	case NFTNL_OBJ_SYNPROXY_FLAGS:
+		*data_len = sizeof(synproxy->flags);
+		return &synproxy->flags;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_synproxy_cb(const struct nlattr *attr, void *data)
+{
+	int type = mnl_attr_get_type(attr);
+	const struct nlattr **tb = data;
+
+	if (mnl_attr_type_valid(attr, NFTA_SYNPROXY_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_SYNPROXY_MSS:
+		if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+			abi_breakage();
+		break;
+	case NFTA_SYNPROXY_WSCALE:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	case NFTA_SYNPROXY_FLAGS:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void nftnl_obj_synproxy_build(struct nlmsghdr *nlh,
+				     const struct nftnl_obj *e)
+{
+	struct nftnl_obj_synproxy *synproxy = nftnl_obj_data(e);
+
+	if (e->flags & (1 << NFTNL_OBJ_SYNPROXY_MSS))
+		mnl_attr_put_u16(nlh, NFTA_SYNPROXY_MSS, htons(synproxy->mss));
+	if (e->flags & (1 << NFTNL_OBJ_SYNPROXY_WSCALE))
+		mnl_attr_put_u8(nlh, NFTA_SYNPROXY_WSCALE, synproxy->wscale);
+	if (e->flags & (1 << NFTNL_OBJ_SYNPROXY_FLAGS))
+		mnl_attr_put_u32(nlh, NFTA_SYNPROXY_FLAGS,
+				 htonl(synproxy->flags));
+}
+
+static int nftnl_obj_synproxy_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_synproxy *synproxy = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_SYNPROXY_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_synproxy_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_SYNPROXY_MSS]) {
+		synproxy->mss = ntohs(mnl_attr_get_u16(tb[NFTA_SYNPROXY_MSS]));
+		e->flags |= (1 << NFTNL_OBJ_SYNPROXY_MSS);
+	}
+	if (tb[NFTA_SYNPROXY_WSCALE]) {
+		synproxy->wscale = mnl_attr_get_u8(tb[NFTA_SYNPROXY_WSCALE]);
+		e->flags |= (1 << NFTNL_OBJ_SYNPROXY_WSCALE);
+	}
+	if (tb[NFTA_SYNPROXY_FLAGS]) {
+		synproxy->flags = ntohl(mnl_attr_get_u32(tb[NFTA_SYNPROXY_FLAGS]));
+		e->flags |= (1 << NFTNL_OBJ_SYNPROXY_FLAGS);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_synproxy_snprintf(char *buf, size_t len,
+				    uint32_t flags,
+				    const struct nftnl_obj *e)
+{
+	struct nftnl_obj_synproxy *synproxy = nftnl_obj_data(e);
+        int ret, offset = 0;
+
+        if (e->flags & (1 << NFTNL_OBJ_SYNPROXY_MSS) &&
+            e->flags & (1 << NFTNL_OBJ_SYNPROXY_WSCALE)) {
+                ret = snprintf(buf, len, "mss %u wscale %u ", synproxy->mss,
+                               synproxy->wscale);
+                SNPRINTF_BUFFER_SIZE(ret, len, offset);
+        }
+
+        return offset;
+}
+
+struct obj_ops obj_ops_synproxy = {
+	.name		= "synproxy",
+	.type		= NFT_OBJECT_SYNPROXY,
+	.alloc_len	= sizeof(struct nftnl_obj_synproxy),
+	.max_attr	= NFTA_SYNPROXY_MAX,
+	.set		= nftnl_obj_synproxy_set,
+	.get		= nftnl_obj_synproxy_get,
+	.parse		= nftnl_obj_synproxy_parse,
+	.build		= nftnl_obj_synproxy_build,
+	.output		= nftnl_obj_synproxy_snprintf,
+};
diff --git a/src/obj/tunnel.c b/src/obj/tunnel.c
new file mode 100644
index 0000000..d2503dc
--- /dev/null
+++ b/src/obj/tunnel.c
@@ -0,0 +1,551 @@
+/*
+ * (C) 2018 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <inttypes.h>
+
+#include <linux/netfilter/nf_tables.h>
+
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+#include "internal.h"
+#include "obj.h"
+
+static int
+nftnl_obj_tunnel_set(struct nftnl_obj *e, uint16_t type,
+		     const void *data, uint32_t data_len)
+{
+	struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_TUNNEL_ID:
+		memcpy(&tun->id, data, sizeof(tun->id));
+		break;
+	case NFTNL_OBJ_TUNNEL_IPV4_SRC:
+		memcpy(&tun->src_v4, data, sizeof(tun->src_v4));
+		break;
+	case NFTNL_OBJ_TUNNEL_IPV4_DST:
+		memcpy(&tun->dst_v4, data, sizeof(tun->dst_v4));
+		break;
+	case NFTNL_OBJ_TUNNEL_IPV6_SRC:
+		memcpy(&tun->src_v6, data, sizeof(struct in6_addr));
+		break;
+	case NFTNL_OBJ_TUNNEL_IPV6_DST:
+		memcpy(&tun->dst_v6, data, sizeof(struct in6_addr));
+		break;
+	case NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL:
+		memcpy(&tun->flowlabel, data, sizeof(tun->flowlabel));
+		break;
+	case NFTNL_OBJ_TUNNEL_SPORT:
+		memcpy(&tun->sport, data, sizeof(tun->sport));
+		break;
+	case NFTNL_OBJ_TUNNEL_DPORT:
+		memcpy(&tun->dport, data, sizeof(tun->dport));
+		break;
+	case NFTNL_OBJ_TUNNEL_FLAGS:
+		memcpy(&tun->tun_flags, data, sizeof(tun->tun_flags));
+		break;
+	case NFTNL_OBJ_TUNNEL_TOS:
+		memcpy(&tun->tun_tos, data, sizeof(tun->tun_tos));
+		break;
+	case NFTNL_OBJ_TUNNEL_TTL:
+		memcpy(&tun->tun_ttl, data, sizeof(tun->tun_ttl));
+		break;
+	case NFTNL_OBJ_TUNNEL_VXLAN_GBP:
+		memcpy(&tun->u.tun_vxlan.gbp, data, sizeof(tun->u.tun_vxlan.gbp));
+		break;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_VERSION:
+		memcpy(&tun->u.tun_erspan.version, data, sizeof(tun->u.tun_erspan.version));
+		break;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX:
+		memcpy(&tun->u.tun_erspan.u.v1_index, data, sizeof(tun->u.tun_erspan.u.v1_index));
+		break;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID:
+		memcpy(&tun->u.tun_erspan.u.v2.hwid, data, sizeof(tun->u.tun_erspan.u.v2.hwid));
+		break;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR:
+		memcpy(&tun->u.tun_erspan.u.v2.dir, data, sizeof(tun->u.tun_erspan.u.v2.dir));
+		break;
+	default:
+		return -1;
+	}
+	return 0;
+}
+
+static const void *
+nftnl_obj_tunnel_get(const struct nftnl_obj *e, uint16_t type,
+		     uint32_t *data_len)
+{
+	struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+
+	switch (type) {
+	case NFTNL_OBJ_TUNNEL_ID:
+		*data_len = sizeof(tun->id);
+		return &tun->id;
+	case NFTNL_OBJ_TUNNEL_IPV4_SRC:
+		*data_len = sizeof(tun->src_v4);
+		return &tun->src_v4;
+	case NFTNL_OBJ_TUNNEL_IPV4_DST:
+		*data_len = sizeof(tun->dst_v4);
+		return &tun->dst_v4;
+	case NFTNL_OBJ_TUNNEL_IPV6_SRC:
+		*data_len = sizeof(tun->src_v6);
+		return &tun->src_v6;
+	case NFTNL_OBJ_TUNNEL_IPV6_DST:
+		*data_len = sizeof(tun->dst_v6);
+		return &tun->dst_v6;
+	case NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL:
+		*data_len = sizeof(tun->flowlabel);
+		return &tun->flowlabel;
+	case NFTNL_OBJ_TUNNEL_SPORT:
+		*data_len = sizeof(tun->sport);
+		return &tun->sport;
+	case NFTNL_OBJ_TUNNEL_DPORT:
+		*data_len = sizeof(tun->dport);
+		return &tun->dport;
+	case NFTNL_OBJ_TUNNEL_FLAGS:
+		*data_len = sizeof(tun->tun_flags);
+		return &tun->tun_flags;
+	case NFTNL_OBJ_TUNNEL_TOS:
+		*data_len = sizeof(tun->tun_tos);
+		return &tun->tun_tos;
+	case NFTNL_OBJ_TUNNEL_TTL:
+		*data_len = sizeof(tun->tun_ttl);
+		return &tun->tun_ttl;
+	case NFTNL_OBJ_TUNNEL_VXLAN_GBP:
+		*data_len = sizeof(tun->u.tun_vxlan.gbp);
+		return &tun->u.tun_vxlan.gbp;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_VERSION:
+		*data_len = sizeof(tun->u.tun_erspan.version);
+		return &tun->u.tun_erspan.version;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX:
+		*data_len = sizeof(tun->u.tun_erspan.u.v1_index);
+		return &tun->u.tun_erspan.u.v1_index;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID:
+		*data_len = sizeof(tun->u.tun_erspan.u.v2.hwid);
+		return &tun->u.tun_erspan.u.v2.hwid;
+	case NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR:
+		*data_len = sizeof(tun->u.tun_erspan.u.v2.dir);
+		return &tun->u.tun_erspan.u.v2.dir;
+	}
+	return NULL;
+}
+
+static int nftnl_obj_tunnel_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFTA_TUNNEL_KEY_ID:
+	case NFTA_TUNNEL_KEY_FLAGS:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	case NFTA_TUNNEL_KEY_IP:
+	case NFTA_TUNNEL_KEY_IP6:
+	case NFTA_TUNNEL_KEY_OPTS:
+		if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+			abi_breakage();
+		break;
+	case NFTA_TUNNEL_KEY_SPORT:
+	case NFTA_TUNNEL_KEY_DPORT:
+		if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0)
+			abi_breakage();
+		break;
+	case NFTA_TUNNEL_KEY_TOS:
+	case NFTA_TUNNEL_KEY_TTL:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static void
+nftnl_obj_tunnel_build(struct nlmsghdr *nlh, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+	struct nlattr *nest;
+
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ID))
+		mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_ID, htonl(tun->id));
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_SRC) ||
+	    e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_DST)) {
+		nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_IP);
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_SRC))
+			mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_IP_SRC, tun->src_v4);
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV4_DST))
+			mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_IP_DST, tun->dst_v4);
+		mnl_attr_nest_end(nlh, nest);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_SRC) ||
+	    e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_DST)) {
+		nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_IP6);
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_SRC))
+			mnl_attr_put(nlh, NFTA_TUNNEL_KEY_IP6_SRC,
+				     sizeof(tun->src_v6), &tun->src_v6);
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_DST))
+			mnl_attr_put(nlh, NFTA_TUNNEL_KEY_IP6_DST,
+				     sizeof(tun->dst_v6), &tun->dst_v6);
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL))
+			mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_IP6_FLOWLABEL,
+					 htonl(tun->flowlabel));
+		mnl_attr_nest_end(nlh, nest);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_SPORT))
+		mnl_attr_put_u16(nlh, NFTA_TUNNEL_KEY_SPORT, htons(tun->sport));
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_DPORT))
+		mnl_attr_put_u16(nlh, NFTA_TUNNEL_KEY_DPORT, htons(tun->dport));
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_TOS))
+		mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_TOS, tun->tun_tos);
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_TTL))
+		mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_TTL, tun->tun_ttl);
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_FLAGS))
+		mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_FLAGS, htonl(tun->tun_flags));
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_VXLAN_GBP)) {
+		nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_OPTS);
+		mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_VXLAN_GBP,
+				 htonl(tun->u.tun_vxlan.gbp));
+		mnl_attr_nest_end(nlh, nest);
+	}
+	if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_VERSION) &&
+	    (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX) ||
+	     (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID) &&
+	      e->flags & (1u << NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR)))) {
+		struct nlattr *nest_inner;
+
+		nest = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_OPTS);
+		nest_inner = mnl_attr_nest_start(nlh, NFTA_TUNNEL_KEY_OPTS_ERSPAN);
+		mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_ERSPAN_VERSION,
+				 htonl(tun->u.tun_erspan.version));
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX))
+			mnl_attr_put_u32(nlh, NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX,
+					 htonl(tun->u.tun_erspan.u.v1_index));
+		if (e->flags & (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID))
+			mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_ERSPAN_V2_HWID,
+					tun->u.tun_erspan.u.v2.hwid);
+		if (e->flags & (1u << NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR))
+			mnl_attr_put_u8(nlh, NFTA_TUNNEL_KEY_ERSPAN_V2_DIR,
+					tun->u.tun_erspan.u.v2.dir);
+		mnl_attr_nest_end(nlh, nest_inner);
+		mnl_attr_nest_end(nlh, nest);
+	}
+}
+
+static int nftnl_obj_tunnel_ip_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_TUNNEL_KEY_IP_SRC:
+	case NFTA_TUNNEL_KEY_IP_DST:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int nftnl_obj_tunnel_parse_ip(struct nftnl_obj *e, struct nlattr *attr,
+				     struct nftnl_obj_tunnel *tun)
+{
+	struct nlattr *tb[NFTA_TUNNEL_KEY_IP_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_ip_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_TUNNEL_KEY_IP_SRC]) {
+		tun->src_v4 = mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_IP_SRC]);
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV4_SRC);
+	}
+	if (tb[NFTA_TUNNEL_KEY_IP_DST]) {
+		tun->dst_v4 = mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_IP_DST]);
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV4_DST);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_tunnel_ip6_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch(type) {
+	case NFTA_TUNNEL_KEY_IP6_SRC:
+	case NFTA_TUNNEL_KEY_IP6_DST:
+		if (mnl_attr_validate(attr, MNL_TYPE_BINARY) < 0)
+			abi_breakage();
+		break;
+	case NFTA_TUNNEL_KEY_IP6_FLOWLABEL:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int nftnl_obj_tunnel_parse_ip6(struct nftnl_obj *e, struct nlattr *attr,
+				      struct nftnl_obj_tunnel *tun)
+{
+	struct nlattr *tb[NFTA_TUNNEL_KEY_IP6_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_ip6_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_TUNNEL_KEY_IP6_SRC]) {
+		memcpy(&tun->src_v6,
+		       mnl_attr_get_payload(tb[NFTA_TUNNEL_KEY_IP6_SRC]),
+		       sizeof(struct in6_addr));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV6_SRC);
+	}
+	if (tb[NFTA_TUNNEL_KEY_IP6_DST]) {
+		memcpy(&tun->dst_v6,
+		       mnl_attr_get_payload(tb[NFTA_TUNNEL_KEY_IP6_DST]),
+		       sizeof(struct in6_addr));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV6_DST);
+	}
+	if (tb[NFTA_TUNNEL_KEY_IP6_FLOWLABEL]) {
+		tun->flowlabel =
+			ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_IP6_FLOWLABEL]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_IPV6_FLOWLABEL);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_tunnel_vxlan_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_VXLAN_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_TUNNEL_KEY_VXLAN_GBP:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int
+nftnl_obj_tunnel_parse_vxlan(struct nftnl_obj *e, struct nlattr *attr,
+			     struct nftnl_obj_tunnel *tun)
+{
+	struct nlattr *tb[NFTA_TUNNEL_KEY_VXLAN_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_vxlan_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_TUNNEL_KEY_VXLAN_GBP]) {
+		tun->u.tun_vxlan.gbp =
+			ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_VXLAN_GBP]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_VXLAN_GBP);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_tunnel_erspan_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_ERSPAN_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_TUNNEL_KEY_ERSPAN_VERSION:
+	case NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0)
+			abi_breakage();
+		break;
+	case NFTA_TUNNEL_KEY_ERSPAN_V2_HWID:
+	case NFTA_TUNNEL_KEY_ERSPAN_V2_DIR:
+		if (mnl_attr_validate(attr, MNL_TYPE_U8) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int
+nftnl_obj_tunnel_parse_erspan(struct nftnl_obj *e, struct nlattr *attr,
+			      struct nftnl_obj_tunnel *tun)
+{
+	struct nlattr *tb[NFTA_TUNNEL_KEY_ERSPAN_MAX + 1] = {};
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_erspan_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION]) {
+		tun->u.tun_erspan.version =
+			ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_ERSPAN_VERSION]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_VERSION);
+	}
+	if (tb[NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX]) {
+		tun->u.tun_erspan.u.v1_index =
+			ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_ERSPAN_V1_INDEX]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V1_INDEX);
+	}
+	if (tb[NFTA_TUNNEL_KEY_ERSPAN_V2_HWID]) {
+		tun->u.tun_erspan.u.v2.hwid =
+			mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_V2_HWID]);
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_ERSPAN_V2_HWID);
+	}
+	if (tb[NFTA_TUNNEL_KEY_ERSPAN_V2_DIR]) {
+		tun->u.tun_erspan.u.v2.dir =
+			mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_ERSPAN_V2_DIR]);
+		e->flags |= (1u << NFTNL_OBJ_TUNNEL_ERSPAN_V2_DIR);
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_tunnel_opts_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	if (mnl_attr_type_valid(attr, NFTA_TUNNEL_KEY_OPTS_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFTA_TUNNEL_KEY_OPTS_VXLAN:
+	case NFTA_TUNNEL_KEY_OPTS_ERSPAN:
+		if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0)
+			abi_breakage();
+		break;
+	}
+
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int
+nftnl_obj_tunnel_parse_opts(struct nftnl_obj *e, struct nlattr *attr,
+			    struct nftnl_obj_tunnel *tun)
+{
+	struct nlattr *tb[NFTA_TUNNEL_KEY_OPTS_MAX + 1] = {};
+	int err = 0;
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_opts_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_TUNNEL_KEY_OPTS_VXLAN]) {
+		err = nftnl_obj_tunnel_parse_vxlan(e, tb[NFTA_TUNNEL_KEY_OPTS_VXLAN],
+						   tun);
+	} else if (tb[NFTA_TUNNEL_KEY_OPTS_ERSPAN]) {
+		err = nftnl_obj_tunnel_parse_erspan(e, tb[NFTA_TUNNEL_KEY_OPTS_ERSPAN],
+						    tun);
+	}
+
+	return err;
+}
+
+static int
+nftnl_obj_tunnel_parse(struct nftnl_obj *e, struct nlattr *attr)
+{
+	struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+	struct nlattr *tb[NFTA_TUNNEL_KEY_MAX + 1] = {};
+	int err;
+
+	if (mnl_attr_parse_nested(attr, nftnl_obj_tunnel_cb, tb) < 0)
+		return -1;
+
+	if (tb[NFTA_TUNNEL_KEY_ID]) {
+		tun->id = ntohl(mnl_attr_get_u32(tb[NFTA_TUNNEL_KEY_ID]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_ID);
+	}
+	if (tb[NFTA_TUNNEL_KEY_IP]) {
+		err = nftnl_obj_tunnel_parse_ip(e, tb[NFTA_TUNNEL_KEY_IP], tun);
+		if (err < 0)
+			return err;
+	} else if (tb[NFTA_TUNNEL_KEY_IP6]) {
+		err = nftnl_obj_tunnel_parse_ip6(e, tb[NFTA_TUNNEL_KEY_IP6], tun);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_TUNNEL_KEY_SPORT]) {
+		tun->sport = ntohs(mnl_attr_get_u16(tb[NFTA_TUNNEL_KEY_SPORT]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_SPORT);
+	}
+	if (tb[NFTA_TUNNEL_KEY_DPORT]) {
+		tun->dport = ntohs(mnl_attr_get_u16(tb[NFTA_TUNNEL_KEY_DPORT]));
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_DPORT);
+	}
+	if (tb[NFTA_TUNNEL_KEY_TOS]) {
+		tun->tun_tos = mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_TOS]);
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_TOS);
+	}
+	if (tb[NFTA_TUNNEL_KEY_TTL]) {
+		tun->tun_ttl = mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_TTL]);
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_TTL);
+	}
+	if (tb[NFTA_TUNNEL_KEY_FLAGS]) {
+		tun->tun_flags = mnl_attr_get_u8(tb[NFTA_TUNNEL_KEY_FLAGS]);
+		e->flags |= (1 << NFTNL_OBJ_TUNNEL_FLAGS);
+	}
+	if (tb[NFTA_TUNNEL_KEY_OPTS]) {
+		err = nftnl_obj_tunnel_parse_opts(e, tb[NFTA_TUNNEL_KEY_OPTS], tun);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+static int nftnl_obj_tunnel_snprintf(char *buf, size_t len,
+				     uint32_t flags, const struct nftnl_obj *e)
+{
+	struct nftnl_obj_tunnel *tun = nftnl_obj_data(e);
+
+	return snprintf(buf, len, "id %u ", tun->id);
+}
+
+struct obj_ops obj_ops_tunnel = {
+	.name		= "tunnel",
+	.type		= NFT_OBJECT_TUNNEL,
+	.alloc_len	= sizeof(struct nftnl_obj_tunnel),
+	.max_attr	= NFTA_TUNNEL_KEY_MAX,
+	.set		= nftnl_obj_tunnel_set,
+	.get		= nftnl_obj_tunnel_get,
+	.parse		= nftnl_obj_tunnel_parse,
+	.build		= nftnl_obj_tunnel_build,
+	.output		= nftnl_obj_tunnel_snprintf,
+};