[mirror_iproute2.git] / ip / iplink_vxlan.c

/*
 * iplink_vxlan.c	VXLAN device support
 *
 *              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.
 *
 * Authors:     Stephen Hemminger <shemminger@vyatta.com
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <net/if.h>
#include <linux/ip.h>
#include <linux/if_link.h>
#include <arpa/inet.h>

#include "rt_names.h"
#include "utils.h"
#include "ip_common.h"

static void explain(void)
{
	fprintf(stderr, "Usage: ... vxlan id VNI [ group ADDR ] [ local ADDR ]\n");
	fprintf(stderr, "                 [ ttl TTL ] [ tos TOS ] [ dev PHYS_DEV ]\n");
	fprintf(stderr, "                 [ dstport PORT ] [ srcport MIN MAX ]\n");
	fprintf(stderr, "                 [ [no]learning ] [ [no]proxy ] [ [no]rsc ]\n");
	fprintf(stderr, "                 [ [no]l2miss ] [ [no]l3miss ]\n");
	fprintf(stderr, "\n");
	fprintf(stderr, "Where: VNI := 0-16777215\n");
	fprintf(stderr, "       ADDR := { IP_ADDRESS | any }\n");
	fprintf(stderr, "       TOS  := { NUMBER | inherit }\n");
	fprintf(stderr, "       TTL  := { 1..255 | inherit }\n");
}

static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
			  struct nlmsghdr *n)
{
	__u32 vni = 0;
	int vni_set = 0;
	__u32 saddr = 0;
	__u32 gaddr = 0;
	unsigned link = 0;
	__u8 tos = 0;
	__u8 ttl = 0;
	__u8 learning = 1;
	__u8 proxy = 0;
	__u8 rsc = 0;
	__u8 l2miss = 0;
	__u8 l3miss = 0;
	__u8 noage = 0;
	__u32 age = 0;
	__u32 maxaddr = 0;
	__u16 dstport = 4789;
	struct ifla_vxlan_port_range range = { 0, 0 };

	while (argc > 0) {
		if (!matches(*argv, "id") ||
		    !matches(*argv, "vni")) {
			NEXT_ARG();
			if (get_u32(&vni, *argv, 0) ||
			    vni >= 1u << 24)
				invarg("invalid id", *argv);
			vni_set = 1;
		} else if (!matches(*argv, "group")) {
			NEXT_ARG();
			gaddr = get_addr32(*argv);

			if (!IN_MULTICAST(ntohl(gaddr)))
				invarg("invald group address", *argv);
		} else if (!matches(*argv, "local")) {
			NEXT_ARG();
			if (strcmp(*argv, "any"))
				saddr = get_addr32(*argv);
			if (IN_MULTICAST(ntohl(saddr)))
				invarg("invalid local address", *argv);
		} else if (!matches(*argv, "dev")) {
			NEXT_ARG();
			link = if_nametoindex(*argv);
			if (link == 0)
				exit(-1);
		} else if (!matches(*argv, "ttl") ||
			   !matches(*argv, "hoplimit")) {
			unsigned uval;

			NEXT_ARG();
			if (strcmp(*argv, "inherit") != 0) {
				if (get_unsigned(&uval, *argv, 0))
					invarg("invalid TTL", *argv);
				if (uval > 255)
					invarg("TTL must be <= 255", *argv);
				ttl = uval;
			}
		} else if (!matches(*argv, "tos") ||
			   !matches(*argv, "dsfield")) {
			__u32 uval;

			NEXT_ARG();
			if (strcmp(*argv, "inherit") != 0) {
				if (rtnl_dsfield_a2n(&uval, *argv))
					invarg("bad TOS value", *argv);
				tos = uval;
			} else
				tos = 1;
		} else if (!matches(*argv, "ageing")) {
			NEXT_ARG();
			if (strcmp(*argv, "none") == 0)
				noage = 1;
			else if (get_u32(&age, *argv, 0))
				invarg("ageing timer", *argv);
		} else if (!matches(*argv, "maxaddress")) {
			NEXT_ARG();
			if (strcmp(*argv, "unlimited") == 0)
				maxaddr = 0;
			else if (get_u32(&maxaddr, *argv, 0))
				invarg("max addresses", *argv);
		} else if (!matches(*argv, "port") ||
			   !matches(*argv, "srcport")) {
			__u16 minport, maxport;
			NEXT_ARG();
			if (get_u16(&minport, *argv, 0))
				invarg("min port", *argv);
			NEXT_ARG();
			if (get_u16(&maxport, *argv, 0))
				invarg("max port", *argv);
			range.low = htons(minport);
			range.high = htons(maxport);
		} else if (!matches(*argv, "dstport")){
			NEXT_ARG();
			if (get_u16(&dstport, *argv, 0))
				invarg("dst port", *argv);
		} else if (!matches(*argv, "nolearning")) {
			learning = 0;
		} else if (!matches(*argv, "learning")) {
			learning = 1;
		} else if (!matches(*argv, "noproxy")) {
			proxy = 0;
		} else if (!matches(*argv, "proxy")) {
			proxy = 1;
		} else if (!matches(*argv, "norsc")) {
			rsc = 0;
		} else if (!matches(*argv, "rsc")) {
			rsc = 1;
		} else if (!matches(*argv, "nol2miss")) {
			l2miss = 0;
		} else if (!matches(*argv, "l2miss")) {
			l2miss = 1;
		} else if (!matches(*argv, "nol3miss")) {
			l3miss = 0;
		} else if (!matches(*argv, "l3miss")) {
			l3miss = 1;
		} else if (matches(*argv, "help") == 0) {
			explain();
			return -1;
		} else {
			fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
			explain();
			return -1;
		}
		argc--, argv++;
	}
	if (!vni_set) {
		fprintf(stderr, "vxlan: missing virtual network identifier\n");
		return -1;
	}
	addattr32(n, 1024, IFLA_VXLAN_ID, vni);
	if (gaddr)
		addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
	if (saddr)
		addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
	if (link)
		addattr32(n, 1024, IFLA_VXLAN_LINK, link);
	addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
	addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
	addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
	addattr8(n, 1024, IFLA_VXLAN_PROXY, proxy);
	addattr8(n, 1024, IFLA_VXLAN_RSC, rsc);
	addattr8(n, 1024, IFLA_VXLAN_L2MISS, l2miss);
	addattr8(n, 1024, IFLA_VXLAN_L3MISS, l3miss);
	if (noage)
		addattr32(n, 1024, IFLA_VXLAN_AGEING, 0);
	else if (age)
		addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
	if (maxaddr)
		addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
	if (range.low || range.high)
		addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
			  &range, sizeof(range));
	if (dstport)
		addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));

	return 0;
}

static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
	__u32 vni;
	unsigned link;
	__u8 tos;
	__u32 maxaddr;
	char s1[1024];
	char s2[64];

	if (!tb)
		return;

	if (!tb[IFLA_VXLAN_ID] ||
	    RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) < sizeof(__u32))
		return;

	vni = rta_getattr_u32(tb[IFLA_VXLAN_ID]);
	fprintf(f, "id %u ", vni);

	if (tb[IFLA_VXLAN_GROUP]) {
		__be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
		if (addr)
			fprintf(f, "group %s ",
				format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
	}

	if (tb[IFLA_VXLAN_LOCAL]) {
		__be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
		if (addr)
			fprintf(f, "local %s ",
				format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
	}

	if (tb[IFLA_VXLAN_LINK] &&
	    (link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]))) {
		const char *n = if_indextoname(link, s2);

		if (n)
			fprintf(f, "dev %s ", n);
		else
			fprintf(f, "dev %u ", link);
	}

	if (tb[IFLA_VXLAN_PORT_RANGE]) {
		const struct ifla_vxlan_port_range *r
			= RTA_DATA(tb[IFLA_VXLAN_PORT_RANGE]);
		fprintf(f, "srcport %u %u ", ntohs(r->low), ntohs(r->high));
	}

	if (tb[IFLA_VXLAN_PORT])
		fprintf(f, "dstport %u ",
			ntohs(rta_getattr_u16(tb[IFLA_VXLAN_PORT])));

	if (tb[IFLA_VXLAN_LEARNING] &&
	    !rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]))
		fputs("nolearning ", f);

	if (tb[IFLA_VXLAN_PROXY] && rta_getattr_u8(tb[IFLA_VXLAN_PROXY]))
		fputs("proxy ", f);

	if (tb[IFLA_VXLAN_RSC] && rta_getattr_u8(tb[IFLA_VXLAN_RSC]))
		fputs("rsc ", f);

	if (tb[IFLA_VXLAN_L2MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L2MISS]))
		fputs("l2miss ", f);

	if (tb[IFLA_VXLAN_L3MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L3MISS]))
		fputs("l3miss ", f);

	if (tb[IFLA_VXLAN_TOS] &&
	    (tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]))) {
		if (tos == 1)
			fprintf(f, "tos inherit ");
		else
			fprintf(f, "tos %#x ", tos);
	}

	if (tb[IFLA_VXLAN_TTL]) {
		__u8 ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
		if (ttl)
			fprintf(f, "ttl %d ", ttl);
	}

	if (tb[IFLA_VXLAN_AGEING]) {
		__u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
		if (age == 0)
			fprintf(f, "ageing none ");
		else
			fprintf(f, "ageing %u ", age);
	}

	if (tb[IFLA_VXLAN_LIMIT] &&
	    (maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT]) != 0))
		    fprintf(f, "maxaddr %u ", maxaddr);
}

struct link_util vxlan_link_util = {
	.id		= "vxlan",
	.maxattr	= IFLA_VXLAN_MAX,
	.parse_opt	= vxlan_parse_opt,
	.print_opt	= vxlan_print_opt,
};
Commit	Line	Data
a5494df2 SH	1	/*
	2	* iplink_vxlan.c VXLAN device support
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*
	9	* Authors: Stephen Hemminger <shemminger@vyatta.com
	10	*/
	11
	12	#include <stdio.h>
	13	#include <stdlib.h>
	14	#include <string.h>
	15	#include <net/if.h>
	16	#include <linux/ip.h>
	17	#include <linux/if_link.h>
	18	#include <arpa/inet.h>
	19
	20	#include "rt_names.h"
	21	#include "utils.h"
	22	#include "ip_common.h"
	23
	24	static void explain(void)
	25	{
	26	fprintf(stderr, "Usage: ... vxlan id VNI [ group ADDR ] [ local ADDR ]\n");
2d596120	27	fprintf(stderr, " [ ttl TTL ] [ tos TOS ] [ dev PHYS_DEV ]\n");
d85e0a59 SH	28	fprintf(stderr, " [ dstport PORT ] [ srcport MIN MAX ]\n");
d85e0a59 SH	29	fprintf(stderr, " [ [no]learning ] [ [no]proxy ] [ [no]rsc ]\n");
1556e29d	30	fprintf(stderr, " [ [no]l2miss ] [ [no]l3miss ]\n");
a5494df2 SH	31	fprintf(stderr, "\n");
	32	fprintf(stderr, "Where: VNI := 0-16777215\n");
	33	fprintf(stderr, " ADDR := { IP_ADDRESS \| any }\n");
	34	fprintf(stderr, " TOS := { NUMBER \| inherit }\n");
	35	fprintf(stderr, " TTL := { 1..255 \| inherit }\n");
	36	}
	37
	38	static int vxlan_parse_opt(struct link_util lu, int argc, char *argv,
	39	struct nlmsghdr *n)
	40	{
	41	__u32 vni = 0;
	42	int vni_set = 0;
	43	__u32 saddr = 0;
	44	__u32 gaddr = 0;
	45	unsigned link = 0;
	46	__u8 tos = 0;
	47	__u8 ttl = 0;
	48	__u8 learning = 1;
1556e29d DS	49	__u8 proxy = 0;
	50	__u8 rsc = 0;
	51	__u8 l2miss = 0;
	52	__u8 l3miss = 0;
a5494df2 SH	53	__u8 noage = 0;
	54	__u32 age = 0;
	55	__u32 maxaddr = 0;
d85e0a59	56	__u16 dstport = 4789;
2d596120	57	struct ifla_vxlan_port_range range = { 0, 0 };
a5494df2 SH	58
	59	while (argc > 0) {
	60	if (!matches(*argv, "id") \|\|
	61	!matches(*argv, "vni")) {
	62	NEXT_ARG();
	63	if (get_u32(&vni, *argv, 0) \|\|
	64	vni >= 1u << 24)
	65	invarg("invalid id", *argv);
	66	vni_set = 1;
	67	} else if (!matches(*argv, "group")) {
	68	NEXT_ARG();
	69	gaddr = get_addr32(*argv);
	70
	71	if (!IN_MULTICAST(ntohl(gaddr)))
	72	invarg("invald group address", *argv);
	73	} else if (!matches(*argv, "local")) {
	74	NEXT_ARG();
	75	if (strcmp(*argv, "any"))
	76	saddr = get_addr32(*argv);
	77	if (IN_MULTICAST(ntohl(saddr)))
	78	invarg("invalid local address", *argv);
	79	} else if (!matches(*argv, "dev")) {
	80	NEXT_ARG();
	81	link = if_nametoindex(*argv);
	82	if (link == 0)
	83	exit(-1);
	84	} else if (!matches(*argv, "ttl") \|\|
	85	!matches(*argv, "hoplimit")) {
	86	unsigned uval;
	87
	88	NEXT_ARG();
	89	if (strcmp(*argv, "inherit") != 0) {
	90	if (get_unsigned(&uval, *argv, 0))
2d596120	91	invarg("invalid TTL", *argv);
a5494df2	92	if (uval > 255)
2d596120	93	invarg("TTL must be <= 255", *argv);
a5494df2 SH	94	ttl = uval;
	95	}
	96	} else if (!matches(*argv, "tos") \|\|
	97	!matches(*argv, "dsfield")) {
	98	__u32 uval;
	99
	100	NEXT_ARG();
	101	if (strcmp(*argv, "inherit") != 0) {
	102	if (rtnl_dsfield_a2n(&uval, *argv))
	103	invarg("bad TOS value", *argv);
	104	tos = uval;
	105	} else
	106	tos = 1;
	107	} else if (!matches(*argv, "ageing")) {
	108	NEXT_ARG();
	109	if (strcmp(*argv, "none") == 0)
	110	noage = 1;
	111	else if (get_u32(&age, *argv, 0))
2d596120	112	invarg("ageing timer", *argv);
a5494df2 SH	113	} else if (!matches(*argv, "maxaddress")) {
	114	NEXT_ARG();
	115	if (strcmp(*argv, "unlimited") == 0)
	116	maxaddr = 0;
	117	else if (get_u32(&maxaddr, *argv, 0))
2d596120	118	invarg("max addresses", *argv);
d85e0a59 SH	119	} else if (!matches(*argv, "port") \|\|
d85e0a59 SH	120	!matches(*argv, "srcport")) {
2d596120 SH	121	__u16 minport, maxport;
	122	NEXT_ARG();
	123	if (get_u16(&minport, *argv, 0))
	124	invarg("min port", *argv);
	125	NEXT_ARG();
	126	if (get_u16(&maxport, *argv, 0))
	127	invarg("max port", *argv);
	128	range.low = htons(minport);
	129	range.high = htons(maxport);
d85e0a59 SH	130	} else if (!matches(*argv, "dstport")){
	131	NEXT_ARG();
	132	if (get_u16(&dstport, *argv, 0))
	133	invarg("dst port", *argv);
a5494df2 SH	134	} else if (!matches(*argv, "nolearning")) {
	135	learning = 0;
	136	} else if (!matches(*argv, "learning")) {
	137	learning = 1;
1556e29d DS	138	} else if (!matches(*argv, "noproxy")) {
	139	proxy = 0;
	140	} else if (!matches(*argv, "proxy")) {
	141	proxy = 1;
	142	} else if (!matches(*argv, "norsc")) {
	143	rsc = 0;
	144	} else if (!matches(*argv, "rsc")) {
	145	rsc = 1;
	146	} else if (!matches(*argv, "nol2miss")) {
	147	l2miss = 0;
	148	} else if (!matches(*argv, "l2miss")) {
	149	l2miss = 1;
	150	} else if (!matches(*argv, "nol3miss")) {
	151	l3miss = 0;
	152	} else if (!matches(*argv, "l3miss")) {
	153	l3miss = 1;
a5494df2 SH	154	} else if (matches(*argv, "help") == 0) {
	155	explain();
	156	return -1;
	157	} else {
14645ec2	158	fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
a5494df2 SH	159	explain();
	160	return -1;
	161	}
	162	argc--, argv++;
	163	}
a5494df2 SH	164	if (!vni_set) {
	165	fprintf(stderr, "vxlan: missing virtual network identifier\n");
	166	return -1;
	167	}
	168	addattr32(n, 1024, IFLA_VXLAN_ID, vni);
b64da5a5 SH	169	if (gaddr)
	170	addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
	171	if (saddr)
	172	addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
a5494df2 SH	173	if (link)
	174	addattr32(n, 1024, IFLA_VXLAN_LINK, link);
	175	addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
	176	addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
	177	addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
1556e29d DS	178	addattr8(n, 1024, IFLA_VXLAN_PROXY, proxy);
	179	addattr8(n, 1024, IFLA_VXLAN_RSC, rsc);
	180	addattr8(n, 1024, IFLA_VXLAN_L2MISS, l2miss);
	181	addattr8(n, 1024, IFLA_VXLAN_L3MISS, l3miss);
a5494df2 SH	182	if (noage)
	183	addattr32(n, 1024, IFLA_VXLAN_AGEING, 0);
	184	else if (age)
	185	addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
	186	if (maxaddr)
	187	addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
2d596120 SH	188	if (range.low \|\| range.high)
	189	addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
	190	&range, sizeof(range));
d85e0a59 SH	191	if (dstport)
d85e0a59 SH	192	addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));
a5494df2 SH	193
	194	return 0;
	195	}
	196
	197	static void vxlan_print_opt(struct link_util lu, FILE f, struct rtattr *tb[])
	198	{
	199	__u32 vni;
	200	unsigned link;
2d596120 SH	201	__u8 tos;
2d596120 SH	202	__u32 maxaddr;
a5494df2 SH	203	char s1[1024];
	204	char s2[64];
	205
	206	if (!tb)
	207	return;
	208
	209	if (!tb[IFLA_VXLAN_ID] \|\|
	210	RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) < sizeof(__u32))
	211	return;
	212
	213	vni = rta_getattr_u32(tb[IFLA_VXLAN_ID]);
	214	fprintf(f, "id %u ", vni);
	215
	216	if (tb[IFLA_VXLAN_GROUP]) {
b64da5a5	217	__be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
a5494df2 SH	218	if (addr)
	219	fprintf(f, "group %s ",
	220	format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
	221	}
	222
	223	if (tb[IFLA_VXLAN_LOCAL]) {
b64da5a5	224	__be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
a5494df2	225	if (addr)
1556e29d	226	fprintf(f, "local %s ",
a5494df2 SH	227	format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
	228	}
	229
	230	if (tb[IFLA_VXLAN_LINK] &&
	231	(link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]))) {
	232	const char *n = if_indextoname(link, s2);
	233
	234	if (n)
	235	fprintf(f, "dev %s ", n);
	236	else
	237	fprintf(f, "dev %u ", link);
	238	}
	239
2d596120 SH	240	if (tb[IFLA_VXLAN_PORT_RANGE]) {
	241	const struct ifla_vxlan_port_range *r
	242	= RTA_DATA(tb[IFLA_VXLAN_PORT_RANGE]);
d85e0a59	243	fprintf(f, "srcport %u %u ", ntohs(r->low), ntohs(r->high));
1556e29d	244	}
2d596120	245
d85e0a59 SH	246	if (tb[IFLA_VXLAN_PORT])
	247	fprintf(f, "dstport %u ",
	248	ntohs(rta_getattr_u16(tb[IFLA_VXLAN_PORT])));
	249
a5494df2 SH	250	if (tb[IFLA_VXLAN_LEARNING] &&
	251	!rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]))
	252	fputs("nolearning ", f);
1556e29d DS	253
	254	if (tb[IFLA_VXLAN_PROXY] && rta_getattr_u8(tb[IFLA_VXLAN_PROXY]))
	255	fputs("proxy ", f);
	256
	257	if (tb[IFLA_VXLAN_RSC] && rta_getattr_u8(tb[IFLA_VXLAN_RSC]))
	258	fputs("rsc ", f);
	259
	260	if (tb[IFLA_VXLAN_L2MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L2MISS]))
	261	fputs("l2miss ", f);
	262
	263	if (tb[IFLA_VXLAN_L3MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L3MISS]))
	264	fputs("l3miss ", f);
	265
2d596120 SH	266	if (tb[IFLA_VXLAN_TOS] &&
2d596120 SH	267	(tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]))) {
a5494df2 SH	268	if (tos == 1)
	269	fprintf(f, "tos inherit ");
	270	else
	271	fprintf(f, "tos %#x ", tos);
	272	}
	273
	274	if (tb[IFLA_VXLAN_TTL]) {
	275	__u8 ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
	276	if (ttl)
	277	fprintf(f, "ttl %d ", ttl);
	278	}
	279
	280	if (tb[IFLA_VXLAN_AGEING]) {
	281	__u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
	282	if (age == 0)
	283	fprintf(f, "ageing none ");
	284	else
	285	fprintf(f, "ageing %u ", age);
	286	}
2d596120 SH	287
	288	if (tb[IFLA_VXLAN_LIMIT] &&
	289	(maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT]) != 0))
	290	fprintf(f, "maxaddr %u ", maxaddr);
a5494df2 SH	291	}
	292
	293	struct link_util vxlan_link_util = {
	294	.id = "vxlan",
	295	.maxattr = IFLA_VXLAN_MAX,
	296	.parse_opt = vxlan_parse_opt,
	297	.print_opt = vxlan_print_opt,
	298	};