[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 | remote } ADDR ] [ local ADDR ]\n");
	fprintf(stderr, "                 [ ttl TTL ] [ tos TOS ] [ dev PHYS_DEV ]\n");
	fprintf(stderr, "                 [ port MIN MAX ] [ [no]learning ]\n");
	fprintf(stderr, "                 [ [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;
	__u32 daddr = 0;
	struct in6_addr saddr6 = IN6ADDR_ANY_INIT;
	struct in6_addr gaddr6 = IN6ADDR_ANY_INIT;
	struct in6_addr daddr6 = IN6ADDR_ANY_INIT;
	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;
	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();
			if (!inet_get_addr(*argv, &gaddr, &gaddr6)) {
				fprintf(stderr, "Invalid address \"%s\"\n", *argv);
				return -1;
			}
			if (!IN6_IS_ADDR_MULTICAST(&gaddr6) && !IN_MULTICAST(ntohl(gaddr)))
				invarg("invalid group address", *argv);
		} else if (!matches(*argv, "remote")) {
			NEXT_ARG();
			if (!inet_get_addr(*argv, &daddr, &daddr6)) {
				fprintf(stderr, "Invalid address \"%s\"\n", *argv);
				return -1;
			}
			if (IN6_IS_ADDR_MULTICAST(&daddr6) || IN_MULTICAST(ntohl(daddr)))
				invarg("invalid remote address", *argv);
		} else if (!matches(*argv, "local")) {
			NEXT_ARG();
			if (strcmp(*argv, "any")) {
				if (!inet_get_addr(*argv, &saddr, &saddr6)) {
					fprintf(stderr, "Invalid address \"%s\"\n", *argv);
					return -1;
				}
			}

			if (IN_MULTICAST(ntohl(saddr)) || IN6_IS_ADDR_MULTICAST(&saddr6))
				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")) {
			__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, "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;
	}
	if ((gaddr && daddr) ||
		(memcmp(&gaddr6, &in6addr_any, sizeof(gaddr6)) &&
		 memcmp(&daddr6, &in6addr_any, sizeof(daddr6)))) {
		fprintf(stderr, "vxlan: both group and remote cannot be specified\n");
		return -1;
	}
	addattr32(n, 1024, IFLA_VXLAN_ID, vni);
	if (gaddr)
		addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
	else if (daddr)
		addattr_l(n, 1024, IFLA_VXLAN_GROUP, &daddr, 4);
	if (memcmp(&gaddr6, &in6addr_any, sizeof(gaddr6)) != 0)
		addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &gaddr6, sizeof(struct in6_addr));
	else if (memcmp(&daddr6, &in6addr_any, sizeof(daddr6)) != 0)
		addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &daddr6, sizeof(struct in6_addr));

	if (saddr)
		addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
	else if (memcmp(&saddr6, &in6addr_any, sizeof(saddr6)) != 0)
		addattr_l(n, 1024, IFLA_VXLAN_LOCAL6, &saddr6, sizeof(struct in6_addr));

	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));

	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) {
			if (IN_MULTICAST(ntohl(addr)))
				fprintf(f, "group %s ",
					format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
			else
				fprintf(f, "remote %s ",
					format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
		}
	} else if (tb[IFLA_VXLAN_GROUP6]) {
		struct in6_addr addr;
		memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_GROUP6]), sizeof(struct in6_addr));
		if (memcmp(&addr, &in6addr_any, sizeof(addr)) != 0) {
			if (IN6_IS_ADDR_MULTICAST(&addr))
				fprintf(f, "group %s ",
					format_host(AF_INET6, sizeof(struct in6_addr), &addr, s1, sizeof(s1)));
			else
				fprintf(f, "remote %s ",
					format_host(AF_INET6, sizeof(struct in6_addr), &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)));
	} else if (tb[IFLA_VXLAN_LOCAL6]) {
		struct in6_addr addr;
		memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_LOCAL6]), sizeof(struct in6_addr));
		if (memcmp(&addr, &in6addr_any, sizeof(addr)) != 0)
			fprintf(f, "local %s ",
				format_host(AF_INET6, sizeof(struct in6_addr), &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, "port %u %u ", ntohs(r->low), ntohs(r->high));
	}

	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	{
7cfa3802	26	fprintf(stderr, "Usage: ... vxlan id VNI [ { group \| remote } ADDR ] [ local ADDR ]\n");
2d596120	27	fprintf(stderr, " [ ttl TTL ] [ tos TOS ] [ dev PHYS_DEV ]\n");
92deabcf SH	28	fprintf(stderr, " [ port MIN MAX ] [ [no]learning ]\n");
92deabcf SH	29	fprintf(stderr, " [ [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;
7cfa3802	45	__u32 daddr = 0;
aa574cd6 WC	46	struct in6_addr saddr6 = IN6ADDR_ANY_INIT;
	47	struct in6_addr gaddr6 = IN6ADDR_ANY_INIT;
	48	struct in6_addr daddr6 = IN6ADDR_ANY_INIT;
a5494df2 SH	49	unsigned link = 0;
	50	__u8 tos = 0;
	51	__u8 ttl = 0;
	52	__u8 learning = 1;
1556e29d DS	53	__u8 proxy = 0;
	54	__u8 rsc = 0;
	55	__u8 l2miss = 0;
	56	__u8 l3miss = 0;
a5494df2 SH	57	__u8 noage = 0;
	58	__u32 age = 0;
	59	__u32 maxaddr = 0;
2d596120	60	struct ifla_vxlan_port_range range = { 0, 0 };
a5494df2 SH	61
	62	while (argc > 0) {
	63	if (!matches(*argv, "id") \|\|
	64	!matches(*argv, "vni")) {
	65	NEXT_ARG();
	66	if (get_u32(&vni, *argv, 0) \|\|
	67	vni >= 1u << 24)
	68	invarg("invalid id", *argv);
	69	vni_set = 1;
	70	} else if (!matches(*argv, "group")) {
	71	NEXT_ARG();
aa574cd6 WC	72	if (!inet_get_addr(*argv, &gaddr, &gaddr6)) {
	73	fprintf(stderr, "Invalid address \"%s\"\n", *argv);
	74	return -1;
	75	}
	76	if (!IN6_IS_ADDR_MULTICAST(&gaddr6) && !IN_MULTICAST(ntohl(gaddr)))
7cfa3802 AW	77	invarg("invalid group address", *argv);
	78	} else if (!matches(*argv, "remote")) {
	79	NEXT_ARG();
aa574cd6 WC	80	if (!inet_get_addr(*argv, &daddr, &daddr6)) {
	81	fprintf(stderr, "Invalid address \"%s\"\n", *argv);
	82	return -1;
	83	}
	84	if (IN6_IS_ADDR_MULTICAST(&daddr6) \|\| IN_MULTICAST(ntohl(daddr)))
7cfa3802	85	invarg("invalid remote address", *argv);
a5494df2 SH	86	} else if (!matches(*argv, "local")) {
a5494df2 SH	87	NEXT_ARG();
aa574cd6 WC	88	if (strcmp(*argv, "any")) {
	89	if (!inet_get_addr(*argv, &saddr, &saddr6)) {
	90	fprintf(stderr, "Invalid address \"%s\"\n", *argv);
	91	return -1;
	92	}
	93	}
	94
	95	if (IN_MULTICAST(ntohl(saddr)) \|\| IN6_IS_ADDR_MULTICAST(&saddr6))
a5494df2 SH	96	invarg("invalid local address", *argv);
	97	} else if (!matches(*argv, "dev")) {
	98	NEXT_ARG();
	99	link = if_nametoindex(*argv);
	100	if (link == 0)
	101	exit(-1);
	102	} else if (!matches(*argv, "ttl") \|\|
	103	!matches(*argv, "hoplimit")) {
	104	unsigned uval;
	105
	106	NEXT_ARG();
	107	if (strcmp(*argv, "inherit") != 0) {
	108	if (get_unsigned(&uval, *argv, 0))
2d596120	109	invarg("invalid TTL", *argv);
a5494df2	110	if (uval > 255)
2d596120	111	invarg("TTL must be <= 255", *argv);
a5494df2 SH	112	ttl = uval;
	113	}
	114	} else if (!matches(*argv, "tos") \|\|
	115	!matches(*argv, "dsfield")) {
	116	__u32 uval;
	117
	118	NEXT_ARG();
	119	if (strcmp(*argv, "inherit") != 0) {
	120	if (rtnl_dsfield_a2n(&uval, *argv))
	121	invarg("bad TOS value", *argv);
	122	tos = uval;
	123	} else
	124	tos = 1;
	125	} else if (!matches(*argv, "ageing")) {
	126	NEXT_ARG();
	127	if (strcmp(*argv, "none") == 0)
	128	noage = 1;
	129	else if (get_u32(&age, *argv, 0))
2d596120	130	invarg("ageing timer", *argv);
a5494df2 SH	131	} else if (!matches(*argv, "maxaddress")) {
	132	NEXT_ARG();
	133	if (strcmp(*argv, "unlimited") == 0)
	134	maxaddr = 0;
	135	else if (get_u32(&maxaddr, *argv, 0))
2d596120	136	invarg("max addresses", *argv);
92deabcf	137	} else if (!matches(*argv, "port")) {
2d596120 SH	138	__u16 minport, maxport;
	139	NEXT_ARG();
	140	if (get_u16(&minport, *argv, 0))
	141	invarg("min port", *argv);
	142	NEXT_ARG();
	143	if (get_u16(&maxport, *argv, 0))
	144	invarg("max port", *argv);
	145	range.low = htons(minport);
	146	range.high = htons(maxport);
a5494df2 SH	147	} else if (!matches(*argv, "nolearning")) {
	148	learning = 0;
	149	} else if (!matches(*argv, "learning")) {
	150	learning = 1;
1556e29d DS	151	} else if (!matches(*argv, "noproxy")) {
	152	proxy = 0;
	153	} else if (!matches(*argv, "proxy")) {
	154	proxy = 1;
	155	} else if (!matches(*argv, "norsc")) {
	156	rsc = 0;
	157	} else if (!matches(*argv, "rsc")) {
	158	rsc = 1;
	159	} else if (!matches(*argv, "nol2miss")) {
	160	l2miss = 0;
	161	} else if (!matches(*argv, "l2miss")) {
	162	l2miss = 1;
	163	} else if (!matches(*argv, "nol3miss")) {
	164	l3miss = 0;
	165	} else if (!matches(*argv, "l3miss")) {
	166	l3miss = 1;
a5494df2 SH	167	} else if (matches(*argv, "help") == 0) {
	168	explain();
	169	return -1;
	170	} else {
14645ec2	171	fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
a5494df2 SH	172	explain();
	173	return -1;
	174	}
	175	argc--, argv++;
	176	}
2a126a85	177
a5494df2 SH	178	if (!vni_set) {
	179	fprintf(stderr, "vxlan: missing virtual network identifier\n");
	180	return -1;
	181	}
aa574cd6 WC	182	if ((gaddr && daddr) \|\|
	183	(memcmp(&gaddr6, &in6addr_any, sizeof(gaddr6)) &&
	184	memcmp(&daddr6, &in6addr_any, sizeof(daddr6)))) {
7cfa3802 AW	185	fprintf(stderr, "vxlan: both group and remote cannot be specified\n");
	186	return -1;
	187	}
a5494df2	188	addattr32(n, 1024, IFLA_VXLAN_ID, vni);
b64da5a5 SH	189	if (gaddr)
b64da5a5 SH	190	addattr_l(n, 1024, IFLA_VXLAN_GROUP, &gaddr, 4);
7cfa3802 AW	191	else if (daddr)
7cfa3802 AW	192	addattr_l(n, 1024, IFLA_VXLAN_GROUP, &daddr, 4);
aa574cd6 WC	193	if (memcmp(&gaddr6, &in6addr_any, sizeof(gaddr6)) != 0)
	194	addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &gaddr6, sizeof(struct in6_addr));
	195	else if (memcmp(&daddr6, &in6addr_any, sizeof(daddr6)) != 0)
	196	addattr_l(n, 1024, IFLA_VXLAN_GROUP6, &daddr6, sizeof(struct in6_addr));
	197
b64da5a5 SH	198	if (saddr)
b64da5a5 SH	199	addattr_l(n, 1024, IFLA_VXLAN_LOCAL, &saddr, 4);
aa574cd6 WC	200	else if (memcmp(&saddr6, &in6addr_any, sizeof(saddr6)) != 0)
	201	addattr_l(n, 1024, IFLA_VXLAN_LOCAL6, &saddr6, sizeof(struct in6_addr));
	202
a5494df2 SH	203	if (link)
	204	addattr32(n, 1024, IFLA_VXLAN_LINK, link);
	205	addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
	206	addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
	207	addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
1556e29d DS	208	addattr8(n, 1024, IFLA_VXLAN_PROXY, proxy);
	209	addattr8(n, 1024, IFLA_VXLAN_RSC, rsc);
	210	addattr8(n, 1024, IFLA_VXLAN_L2MISS, l2miss);
	211	addattr8(n, 1024, IFLA_VXLAN_L3MISS, l3miss);
a5494df2 SH	212	if (noage)
	213	addattr32(n, 1024, IFLA_VXLAN_AGEING, 0);
	214	else if (age)
	215	addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
	216	if (maxaddr)
	217	addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
2d596120 SH	218	if (range.low \|\| range.high)
	219	addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
	220	&range, sizeof(range));
a5494df2 SH	221
	222	return 0;
	223	}
	224
	225	static void vxlan_print_opt(struct link_util lu, FILE f, struct rtattr *tb[])
	226	{
	227	__u32 vni;
	228	unsigned link;
2d596120 SH	229	__u8 tos;
2d596120 SH	230	__u32 maxaddr;
a5494df2 SH	231	char s1[1024];
	232	char s2[64];
	233
	234	if (!tb)
	235	return;
	236
	237	if (!tb[IFLA_VXLAN_ID] \|\|
	238	RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) < sizeof(__u32))
	239	return;
	240
	241	vni = rta_getattr_u32(tb[IFLA_VXLAN_ID]);
	242	fprintf(f, "id %u ", vni);
	243
	244	if (tb[IFLA_VXLAN_GROUP]) {
b64da5a5	245	__be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
7cfa3802 AW	246	if (addr) {
	247	if (IN_MULTICAST(ntohl(addr)))
	248	fprintf(f, "group %s ",
	249	format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
	250	else
	251	fprintf(f, "remote %s ",
	252	format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
	253	}
aa574cd6 WC	254	} else if (tb[IFLA_VXLAN_GROUP6]) {
	255	struct in6_addr addr;
	256	memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_GROUP6]), sizeof(struct in6_addr));
	257	if (memcmp(&addr, &in6addr_any, sizeof(addr)) != 0) {
	258	if (IN6_IS_ADDR_MULTICAST(&addr))
	259	fprintf(f, "group %s ",
	260	format_host(AF_INET6, sizeof(struct in6_addr), &addr, s1, sizeof(s1)));
	261	else
	262	fprintf(f, "remote %s ",
	263	format_host(AF_INET6, sizeof(struct in6_addr), &addr, s1, sizeof(s1)));
	264	}
a5494df2 SH	265	}
	266
	267	if (tb[IFLA_VXLAN_LOCAL]) {
b64da5a5	268	__be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
a5494df2	269	if (addr)
1556e29d	270	fprintf(f, "local %s ",
a5494df2	271	format_host(AF_INET, 4, &addr, s1, sizeof(s1)));
aa574cd6 WC	272	} else if (tb[IFLA_VXLAN_LOCAL6]) {
	273	struct in6_addr addr;
	274	memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_LOCAL6]), sizeof(struct in6_addr));
	275	if (memcmp(&addr, &in6addr_any, sizeof(addr)) != 0)
	276	fprintf(f, "local %s ",
	277	format_host(AF_INET6, sizeof(struct in6_addr), &addr, s1, sizeof(s1)));
a5494df2 SH	278	}
	279
	280	if (tb[IFLA_VXLAN_LINK] &&
	281	(link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]))) {
	282	const char *n = if_indextoname(link, s2);
	283
	284	if (n)
	285	fprintf(f, "dev %s ", n);
	286	else
	287	fprintf(f, "dev %u ", link);
	288	}
	289
2d596120 SH	290	if (tb[IFLA_VXLAN_PORT_RANGE]) {
	291	const struct ifla_vxlan_port_range *r
	292	= RTA_DATA(tb[IFLA_VXLAN_PORT_RANGE]);
92deabcf	293	fprintf(f, "port %u %u ", ntohs(r->low), ntohs(r->high));
1556e29d	294	}
2d596120	295
a5494df2 SH	296	if (tb[IFLA_VXLAN_LEARNING] &&
	297	!rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]))
	298	fputs("nolearning ", f);
1556e29d DS	299
	300	if (tb[IFLA_VXLAN_PROXY] && rta_getattr_u8(tb[IFLA_VXLAN_PROXY]))
	301	fputs("proxy ", f);
	302
	303	if (tb[IFLA_VXLAN_RSC] && rta_getattr_u8(tb[IFLA_VXLAN_RSC]))
	304	fputs("rsc ", f);
	305
	306	if (tb[IFLA_VXLAN_L2MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L2MISS]))
	307	fputs("l2miss ", f);
	308
	309	if (tb[IFLA_VXLAN_L3MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L3MISS]))
	310	fputs("l3miss ", f);
	311
2d596120 SH	312	if (tb[IFLA_VXLAN_TOS] &&
2d596120 SH	313	(tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]))) {
a5494df2 SH	314	if (tos == 1)
	315	fprintf(f, "tos inherit ");
	316	else
	317	fprintf(f, "tos %#x ", tos);
	318	}
	319
	320	if (tb[IFLA_VXLAN_TTL]) {
	321	__u8 ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
	322	if (ttl)
	323	fprintf(f, "ttl %d ", ttl);
	324	}
	325
	326	if (tb[IFLA_VXLAN_AGEING]) {
	327	__u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
	328	if (age == 0)
	329	fprintf(f, "ageing none ");
	330	else
	331	fprintf(f, "ageing %u ", age);
	332	}
2d596120 SH	333
	334	if (tb[IFLA_VXLAN_LIMIT] &&
	335	(maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT]) != 0))
	336	fprintf(f, "maxaddr %u ", maxaddr);
a5494df2 SH	337	}
	338
	339	struct link_util vxlan_link_util = {
	340	.id = "vxlan",
	341	.maxattr = IFLA_VXLAN_MAX,
	342	.parse_opt = vxlan_parse_opt,
	343	.print_opt = vxlan_print_opt,
	344	};