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[mirror_iproute2.git] / ip / iplink_vxlan.c
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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
01c65995
GM		 24#define VXLAN_ATTRSET(attrs, type) (((attrs) & (1L << (type))) != 0)
25
561e650e 26static void print_explain(FILE *f)
27{
8b471354
PS		 28 fprintf(f,
29 "Usage: ... vxlan id VNI\n"
30 " [ { group | remote } IP_ADDRESS ]\n"
31 " [ local ADDR ]\n"
32 " [ ttl TTL ]\n"
33 " [ tos TOS ]\n"
3d98eba4 34 " [ df DF ]\n"
8b471354
PS		 35 " [ flowlabel LABEL ]\n"
36 " [ dev PHYS_DEV ]\n"
37 " [ dstport PORT ]\n"
38 " [ srcport MIN MAX ]\n"
39 " [ [no]learning ]\n"
40 " [ [no]proxy ]\n"
41 " [ [no]rsc ]\n"
42 " [ [no]l2miss ]\n"
43 " [ [no]l3miss ]\n"
44 " [ ageing SECONDS ]\n"
45 " [ maxaddress NUMBER ]\n"
46 " [ [no]udpcsum ]\n"
47 " [ [no]udp6zerocsumtx ]\n"
48 " [ [no]udp6zerocsumrx ]\n"
49 " [ [no]remcsumtx ] [ [no]remcsumrx ]\n"
50 " [ [no]external ] [ gbp ] [ gpe ]\n"
51 "\n"
52 "Where: VNI := 0-16777215\n"
53 " ADDR := { IP_ADDRESS | any }\n"
54 " TOS := { NUMBER | inherit }\n"
8f01001a 55 " TTL := { 1..255 | auto | inherit }\n"
3d98eba4 56 " DF := { unset | set | inherit }\n"
8b471354
PS		 57 " LABEL := 0-1048575\n"
58 );
561e650e 59}
60
a5494df2
SH		 61static void explain(void)
62{
561e650e 63 print_explain(stderr);
a5494df2
SH		 64}
65
01c65995
GM		 66static void check_duparg(__u64 *attrs, int type, const char *key,
67 const char *argv)
68{
69 if (!VXLAN_ATTRSET(*attrs, type)) {
70 *attrs |= (1L << type);
71 return;
72 }
73 duparg2(key, argv);
74}
75
a5494df2
SH		 76static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
77 struct nlmsghdr *n)
78{
9cc173d4 79 inet_prefix saddr, daddr;
a5494df2 80 __u32 vni = 0;
a5494df2 81 __u8 learning = 1;
514cdfb4 82 __u16 dstport = 0;
e79c327e 83 __u8 metadata = 0;
01c65995
GM		 84 __u64 attrs = 0;
85 bool set_op = (n->nlmsg_type == RTM_NEWLINK &&
86 !(n->nlmsg_flags & NLM_F_CREATE));
c1360e3b 87 bool selected_family = false;
a5494df2 88
1e9b8072 89 saddr.family = daddr.family = AF_UNSPEC;
9cc173d4
SP		 90
91 inet_prefix_reset(&saddr);
92 inet_prefix_reset(&daddr);
1e9b8072 93
a5494df2
SH		 94 while (argc > 0) {
95 if (!matches(*argv, "id") ||
96 !matches(*argv, "vni")) {
01c65995
GM		 97 /* We will add ID attribute outside of the loop since we
98 * need to consider metadata information as well.
99 */
a5494df2 100 NEXT_ARG();
01c65995 101 check_duparg(&attrs, IFLA_VXLAN_ID, "id", *argv);
a5494df2
SH		 102 if (get_u32(&vni, *argv, 0) ||
103 vni >= 1u << 24)
104 invarg("invalid id", *argv);
a5494df2 105 } else if (!matches(*argv, "group")) {
1e9b8072 106 if (is_addrtype_inet_not_multi(&daddr)) {
01c65995
GM		 107 fprintf(stderr, "vxlan: both group and remote");
108 fprintf(stderr, " cannot be specified\n");
109 return -1;
110 }
a5494df2 111 NEXT_ARG();
01c65995 112 check_duparg(&attrs, IFLA_VXLAN_GROUP, "group", *argv);
1e9b8072
SP		 113 get_addr(&daddr, *argv, saddr.family);
114 if (!is_addrtype_inet_multi(&daddr))
7cfa3802
AW		 115 invarg("invalid group address", *argv);
116 } else if (!matches(*argv, "remote")) {
1e9b8072 117 if (is_addrtype_inet_multi(&daddr)) {
01c65995
GM		 118 fprintf(stderr, "vxlan: both group and remote");
119 fprintf(stderr, " cannot be specified\n");
120 return -1;
121 }
7cfa3802 122 NEXT_ARG();
01c65995 123 check_duparg(&attrs, IFLA_VXLAN_GROUP, "remote", *argv);
1e9b8072
SP		 124 get_addr(&daddr, *argv, saddr.family);
125 if (!is_addrtype_inet_not_multi(&daddr))
7cfa3802 126 invarg("invalid remote address", *argv);
a5494df2
SH		 127 } else if (!matches(*argv, "local")) {
128 NEXT_ARG();
01c65995 129 check_duparg(&attrs, IFLA_VXLAN_LOCAL, "local", *argv);
1e9b8072
SP		 130 get_addr(&saddr, *argv, daddr.family);
131 if (!is_addrtype_inet_not_multi(&saddr))
a5494df2
SH		 132 invarg("invalid local address", *argv);
133 } else if (!matches(*argv, "dev")) {
01c65995
GM		 134 unsigned int link;
135
a5494df2 136 NEXT_ARG();
01c65995 137 check_duparg(&attrs, IFLA_VXLAN_LINK, "dev", *argv);
7a14358b 138 link = ll_name_to_index(*argv);
fe99adbc
SP		 139 if (!link)
140 exit(nodev(*argv));
01c65995 141 addattr32(n, 1024, IFLA_VXLAN_LINK, link);
a5494df2
SH		 142 } else if (!matches(*argv, "ttl") ||
143 !matches(*argv, "hoplimit")) {
56f5daac 144 unsigned int uval;
01c65995 145 __u8 ttl = 0;
a5494df2
SH		 146
147 NEXT_ARG();
01c65995 148 check_duparg(&attrs, IFLA_VXLAN_TTL, "ttl", *argv);
5b1c363c 149 if (strcmp(*argv, "inherit") == 0) {
952a7a19 150 addattr(n, 1024, IFLA_VXLAN_TTL_INHERIT);
5b1c363c
HL		 151 } else if (strcmp(*argv, "auto") == 0) {
152 addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
153 } else {
a5494df2 154 if (get_unsigned(&uval, *argv, 0))
2d596120 155 invarg("invalid TTL", *argv);
a5494df2 156 if (uval > 255)
2d596120 157 invarg("TTL must be <= 255", *argv);
a5494df2 158 ttl = uval;
5b1c363c 159 addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
a5494df2
SH		 160 }
161 } else if (!matches(*argv, "tos") ||
162 !matches(*argv, "dsfield")) {
163 __u32 uval;
01c65995 164 __u8 tos;
a5494df2
SH		 165
166 NEXT_ARG();
01c65995 167 check_duparg(&attrs, IFLA_VXLAN_TOS, "tos", *argv);
a5494df2
SH		 168 if (strcmp(*argv, "inherit") != 0) {
169 if (rtnl_dsfield_a2n(&uval, *argv))
170 invarg("bad TOS value", *argv);
171 tos = uval;
172 } else
173 tos = 1;
01c65995 174 addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
3d98eba4
SB		 175 } else if (!matches(*argv, "df")) {
176 enum ifla_vxlan_df df;
177
178 NEXT_ARG();
179 check_duparg(&attrs, IFLA_VXLAN_DF, "df", *argv);
180 if (strcmp(*argv, "unset") == 0)
181 df = VXLAN_DF_UNSET;
182 else if (strcmp(*argv, "set") == 0)
183 df = VXLAN_DF_SET;
184 else if (strcmp(*argv, "inherit") == 0)
185 df = VXLAN_DF_INHERIT;
186 else
187 invarg("DF must be 'unset', 'set' or 'inherit'",
188 *argv);
189
190 addattr8(n, 1024, IFLA_VXLAN_DF, df);
f8eb79a6
DB		 191 } else if (!matches(*argv, "label") ||
192 !matches(*argv, "flowlabel")) {
193 __u32 uval;
194
195 NEXT_ARG();
01c65995
GM		 196 check_duparg(&attrs, IFLA_VXLAN_LABEL, "flowlabel",
197 *argv);
f8eb79a6
DB		 198 if (get_u32(&uval, *argv, 0) ||
199 (uval & ~LABEL_MAX_MASK))
200 invarg("invalid flowlabel", *argv);
01c65995 201 addattr32(n, 1024, IFLA_VXLAN_LABEL, htonl(uval));
a5494df2 202 } else if (!matches(*argv, "ageing")) {
01c65995
GM		 203 __u32 age;
204
a5494df2 205 NEXT_ARG();
01c65995
GM		 206 check_duparg(&attrs, IFLA_VXLAN_AGEING, "ageing",
207 *argv);
a5494df2 208 if (strcmp(*argv, "none") == 0)
01c65995 209 age = 0;
a5494df2 210 else if (get_u32(&age, *argv, 0))
2d596120 211 invarg("ageing timer", *argv);
01c65995 212 addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
a5494df2 213 } else if (!matches(*argv, "maxaddress")) {
01c65995
GM		 214 __u32 maxaddr;
215
a5494df2 216 NEXT_ARG();
01c65995
GM		 217 check_duparg(&attrs, IFLA_VXLAN_LIMIT,
218 "maxaddress", *argv);
a5494df2
SH		 219 if (strcmp(*argv, "unlimited") == 0)
220 maxaddr = 0;
221 else if (get_u32(&maxaddr, *argv, 0))
2d596120 222 invarg("max addresses", *argv);
01c65995 223 addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
514cdfb4
SH		 224 } else if (!matches(*argv, "port") ||
225 !matches(*argv, "srcport")) {
01c65995
GM		 226 struct ifla_vxlan_port_range range = { 0, 0 };
227
2d596120 228 NEXT_ARG();
01c65995
GM		 229 check_duparg(&attrs, IFLA_VXLAN_PORT_RANGE, "srcport",
230 *argv);
9f7401fa 231 if (get_be16(&range.low, *argv, 0))
2d596120
SH		 232 invarg("min port", *argv);
233 NEXT_ARG();
9f7401fa 234 if (get_be16(&range.high, *argv, 0))
2d596120 235 invarg("max port", *argv);
01c65995
GM		 236 if (range.low || range.high) {
237 addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
238 &range, sizeof(range));
239 }
56f5daac 240 } else if (!matches(*argv, "dstport")) {
514cdfb4 241 NEXT_ARG();
01c65995 242 check_duparg(&attrs, IFLA_VXLAN_PORT, "dstport", *argv);
514cdfb4
SH		 243 if (get_u16(&dstport, *argv, 0))
244 invarg("dst port", *argv);
a5494df2 245 } else if (!matches(*argv, "nolearning")) {
01c65995 246 check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
a5494df2
SH		 247 learning = 0;
248 } else if (!matches(*argv, "learning")) {
01c65995 249 check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
a5494df2 250 learning = 1;
1556e29d 251 } else if (!matches(*argv, "noproxy")) {
01c65995
GM		 252 check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
253 addattr8(n, 1024, IFLA_VXLAN_PROXY, 0);
1556e29d 254 } else if (!matches(*argv, "proxy")) {
01c65995
GM		 255 check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
256 addattr8(n, 1024, IFLA_VXLAN_PROXY, 1);
1556e29d 257 } else if (!matches(*argv, "norsc")) {
01c65995
GM		 258 check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
259 addattr8(n, 1024, IFLA_VXLAN_RSC, 0);
1556e29d 260 } else if (!matches(*argv, "rsc")) {
01c65995
GM		 261 check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
262 addattr8(n, 1024, IFLA_VXLAN_RSC, 1);
1556e29d 263 } else if (!matches(*argv, "nol2miss")) {
01c65995
GM		 264 check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
265 addattr8(n, 1024, IFLA_VXLAN_L2MISS, 0);
1556e29d 266 } else if (!matches(*argv, "l2miss")) {
01c65995
GM		 267 check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
268 addattr8(n, 1024, IFLA_VXLAN_L2MISS, 1);
1556e29d 269 } else if (!matches(*argv, "nol3miss")) {
01c65995
GM		 270 check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
271 addattr8(n, 1024, IFLA_VXLAN_L3MISS, 0);
1556e29d 272 } else if (!matches(*argv, "l3miss")) {
01c65995
GM		 273 check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
274 addattr8(n, 1024, IFLA_VXLAN_L3MISS, 1);
666cdc50 275 } else if (!matches(*argv, "udpcsum")) {
01c65995
GM		 276 check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
277 addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 1);
666cdc50 278 } else if (!matches(*argv, "noudpcsum")) {
01c65995
GM		 279 check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
280 addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 0);
666cdc50 281 } else if (!matches(*argv, "udp6zerocsumtx")) {
01c65995
GM		 282 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
283 *argv, *argv);
284 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 1);
666cdc50 285 } else if (!matches(*argv, "noudp6zerocsumtx")) {
01c65995
GM		 286 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
287 *argv, *argv);
288 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 0);
666cdc50 289 } else if (!matches(*argv, "udp6zerocsumrx")) {
01c65995
GM		 290 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
291 *argv, *argv);
292 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
666cdc50 293 } else if (!matches(*argv, "noudp6zerocsumrx")) {
01c65995
GM		 294 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
295 *argv, *argv);
296 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 0);
35f59d86 297 } else if (!matches(*argv, "remcsumtx")) {
01c65995
GM		 298 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
299 *argv, *argv);
300 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 1);
35f59d86 301 } else if (!matches(*argv, "noremcsumtx")) {
01c65995
GM		 302 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
303 *argv, *argv);
304 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 0);
35f59d86 305 } else if (!matches(*argv, "remcsumrx")) {
01c65995
GM		 306 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
307 *argv, *argv);
308 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 1);
35f59d86 309 } else if (!matches(*argv, "noremcsumrx")) {
01c65995
GM		 310 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
311 *argv, *argv);
312 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 0);
e79c327e 313 } else if (!matches(*argv, "external")) {
01c65995
GM		 314 check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
315 *argv, *argv);
e79c327e 316 metadata = 1;
44df4597 317 learning = 0;
01c65995
GM		 318 /* we will add LEARNING attribute outside of the loop */
319 addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
320 metadata);
e79c327e 321 } else if (!matches(*argv, "noexternal")) {
01c65995
GM		 322 check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
323 *argv, *argv);
e79c327e 324 metadata = 0;
01c65995
GM		 325 addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
326 metadata);
2eb90dc7 327 } else if (!matches(*argv, "gbp")) {
01c65995
GM		 328 check_duparg(&attrs, IFLA_VXLAN_GBP, *argv, *argv);
329 addattr_l(n, 1024, IFLA_VXLAN_GBP, NULL, 0);
346410bd 330 } else if (!matches(*argv, "gpe")) {
01c65995
GM		 331 check_duparg(&attrs, IFLA_VXLAN_GPE, *argv, *argv);
332 addattr_l(n, 1024, IFLA_VXLAN_GPE, NULL, 0);
a5494df2
SH		 333 } else if (matches(*argv, "help") == 0) {
334 explain();
335 return -1;
336 } else {
14645ec2 337 fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
a5494df2
SH		 338 explain();
339 return -1;
340 }
341 argc--, argv++;
342 }
2a126a85 343
01c65995 344 if (metadata && VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID)) {
e79c327e
PA		 345 fprintf(stderr, "vxlan: both 'external' and vni cannot be specified\n");
346 return -1;
347 }
348
b6fae788 349 if (!metadata && !VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID) && !set_op) {
a5494df2
SH		 350 fprintf(stderr, "vxlan: missing virtual network identifier\n");
351 return -1;
352 }
514cdfb4 353
1e9b8072 354 if (is_addrtype_inet_multi(&daddr) &&
01c65995 355 !VXLAN_ATTRSET(attrs, IFLA_VXLAN_LINK)) {
e2cfe550
JB		 356 fprintf(stderr, "vxlan: 'group' requires 'dev' to be specified\n");
357 return -1;
358 }
359
01c65995
GM		 360 if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) &&
361 VXLAN_ATTRSET(attrs, IFLA_VXLAN_GPE)) {
346410bd 362 dstport = 4790;
01c65995 363 } else if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) && !set_op) {
514cdfb4
SH		 364 fprintf(stderr, "vxlan: destination port not specified\n"
365 "Will use Linux kernel default (non-standard value)\n");
0612519e 366 fprintf(stderr,
514cdfb4
SH		 367 "Use 'dstport 4789' to get the IANA assigned value\n"
368 "Use 'dstport 0' to get default and quiet this message\n");
369 }
370
b6fae788
RS		 371 if (VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID))
372 addattr32(n, 1024, IFLA_VXLAN_ID, vni);
1e9b8072
SP		 373
374 if (is_addrtype_inet(&saddr)) {
375 int type = (saddr.family == AF_INET) ? IFLA_VXLAN_LOCAL
376 : IFLA_VXLAN_LOCAL6;
377 addattr_l(n, 1024, type, saddr.data, saddr.bytelen);
c1360e3b 378 selected_family = true;
1e9b8072
SP		 379 }
380
381 if (is_addrtype_inet(&daddr)) {
382 int type = (daddr.family == AF_INET) ? IFLA_VXLAN_GROUP
383 : IFLA_VXLAN_GROUP6;
384 addattr_l(n, 1024, type, daddr.data, daddr.bytelen);
c1360e3b
LB		 385 selected_family = true;
386 }
387
388 if (!selected_family) {
389 if (preferred_family == AF_INET) {
390 get_addr(&daddr, "default", AF_INET);
391 addattr_l(n, 1024, IFLA_VXLAN_GROUP,
392 daddr.data, daddr.bytelen);
393 } else if (preferred_family == AF_INET6) {
394 get_addr(&daddr, "default", AF_INET6);
395 addattr_l(n, 1024, IFLA_VXLAN_GROUP6,
396 daddr.data, daddr.bytelen);
397 }
1e9b8072 398 }
aa574cd6 399
01c65995
GM		 400 if (!set_op || VXLAN_ATTRSET(attrs, IFLA_VXLAN_LEARNING))
401 addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
514cdfb4 402
514cdfb4
SH		 403 if (dstport)
404 addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));
a5494df2
SH		 405
406 return 0;
407}
408
409static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
410{
411 __u32 vni;
375560c4 412 __u8 ttl = 0;
3caa526c 413 __u8 tos = 0;
2d596120 414 __u32 maxaddr;
a5494df2
SH		 415
416 if (!tb)
417 return;
418
00ff4b8e
SP		 419 if (tb[IFLA_VXLAN_COLLECT_METADATA] &&
420 rta_getattr_u8(tb[IFLA_VXLAN_COLLECT_METADATA])) {
421 print_bool(PRINT_ANY, "external", "external", true);
422 return;
423 }
424
a5494df2
SH		 425 if (!tb[IFLA_VXLAN_ID] ||
426 RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) < sizeof(__u32))
427 return;
428
429 vni = rta_getattr_u32(tb[IFLA_VXLAN_ID]);
3b98d9b8 430 print_uint(PRINT_ANY, "id", "id %u ", vni);
a5494df2
SH		 431
432 if (tb[IFLA_VXLAN_GROUP]) {
b64da5a5 433 __be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
56f5daac 434
7cfa3802
AW		 435 if (addr) {
436 if (IN_MULTICAST(ntohl(addr)))
3b98d9b8
JF		 437 print_string(PRINT_ANY,
438 "group",
439 "group %s ",
440 format_host(AF_INET, 4, &addr));
7cfa3802 441 else
3b98d9b8
JF		 442 print_string(PRINT_ANY,
443 "remote",
444 "remote %s ",
445 format_host(AF_INET, 4, &addr));
7cfa3802 446 }
aa574cd6
WC		 447 } else if (tb[IFLA_VXLAN_GROUP6]) {
448 struct in6_addr addr;
56f5daac 449
aa574cd6 450 memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_GROUP6]), sizeof(struct in6_addr));
1f4c51c0 451 if (!IN6_IS_ADDR_UNSPECIFIED(&addr)) {
aa574cd6 452 if (IN6_IS_ADDR_MULTICAST(&addr))
3b98d9b8
JF		 453 print_string(PRINT_ANY,
454 "group6",
455 "group %s ",
456 format_host(AF_INET6,
457 sizeof(struct in6_addr),
458 &addr));
aa574cd6 459 else
3b98d9b8
JF		 460 print_string(PRINT_ANY,
461 "remote6",
462 "remote %s ",
463 format_host(AF_INET6,
464 sizeof(struct in6_addr),
465 &addr));
aa574cd6 466 }
a5494df2
SH		 467 }
468
469 if (tb[IFLA_VXLAN_LOCAL]) {
b64da5a5 470 __be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
56f5daac 471
a5494df2 472 if (addr)
3b98d9b8
JF		 473 print_string(PRINT_ANY,
474 "local",
475 "local %s ",
476 format_host(AF_INET, 4, &addr));
aa574cd6
WC		 477 } else if (tb[IFLA_VXLAN_LOCAL6]) {
478 struct in6_addr addr;
56f5daac 479
aa574cd6 480 memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_LOCAL6]), sizeof(struct in6_addr));
1f4c51c0 481 if (!IN6_IS_ADDR_UNSPECIFIED(&addr))
3b98d9b8
JF		 482 print_string(PRINT_ANY,
483 "local6",
484 "local %s ",
485 format_host(AF_INET6,
486 sizeof(struct in6_addr),
487 &addr));
a5494df2
SH		 488 }
489
45d3a6ef
SP		 490 if (tb[IFLA_VXLAN_LINK]) {
491 unsigned int link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]);
a5494df2 492
45d3a6ef
SP		 493 if (link) {
494 print_string(PRINT_ANY, "link", "dev %s ",
495 ll_index_to_name(link));
496 }
a5494df2
SH		 497 }
498
2d596120
SH		 499 if (tb[IFLA_VXLAN_PORT_RANGE]) {
500 const struct ifla_vxlan_port_range *r
501 = RTA_DATA(tb[IFLA_VXLAN_PORT_RANGE]);
3b98d9b8
JF		 502 if (is_json_context()) {
503 open_json_object("port_range");
504 print_uint(PRINT_JSON, "low", NULL, ntohs(r->low));
505 print_uint(PRINT_JSON, "high", NULL, ntohs(r->high));
506 close_json_object();
507 } else {
508 fprintf(f, "srcport %u %u ",
509 ntohs(r->low), ntohs(r->high));
510 }
1556e29d 511 }
2d596120 512
514cdfb4 513 if (tb[IFLA_VXLAN_PORT])
3b98d9b8
JF		 514 print_uint(PRINT_ANY,
515 "port",
516 "dstport %u ",
517 rta_getattr_be16(tb[IFLA_VXLAN_PORT]));
514cdfb4 518
3b98d9b8
JF		 519 if (tb[IFLA_VXLAN_LEARNING]) {
520 __u8 learning = rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]);
521
522 print_bool(PRINT_JSON, "learning", NULL, learning);
523 if (!learning)
524 print_bool(PRINT_FP, NULL, "nolearning ", true);
525 }
1556e29d
DS		 526
527 if (tb[IFLA_VXLAN_PROXY] && rta_getattr_u8(tb[IFLA_VXLAN_PROXY]))
3b98d9b8 528 print_bool(PRINT_ANY, "proxy", "proxy ", true);
1556e29d
DS		 529
530 if (tb[IFLA_VXLAN_RSC] && rta_getattr_u8(tb[IFLA_VXLAN_RSC]))
3b98d9b8 531 print_bool(PRINT_ANY, "rsc", "rsc ", true);
1556e29d
DS		 532
533 if (tb[IFLA_VXLAN_L2MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L2MISS]))
3b98d9b8 534 print_bool(PRINT_ANY, "l2miss", "l2miss ", true);
1556e29d
DS		 535
536 if (tb[IFLA_VXLAN_L3MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L3MISS]))
3b98d9b8 537 print_bool(PRINT_ANY, "l3miss", "l3miss ", true);
1556e29d 538
3caa526c
SP		 539 if (tb[IFLA_VXLAN_TOS])
540 tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]);
541 if (tos) {
542 if (is_json_context() || tos != 1)
90c5c969 543 print_0xhex(PRINT_ANY, "tos", "tos %#llx ", tos);
3caa526c
SP		 544 else
545 print_string(PRINT_FP, NULL, "tos %s ", "inherit");
a5494df2
SH		 546 }
547
952a7a19
HL		 548 if (tb[IFLA_VXLAN_TTL_INHERIT] &&
549 rta_getattr_u8(tb[IFLA_VXLAN_TTL_INHERIT])) {
375560c4 550 print_string(PRINT_FP, NULL, "ttl %s ", "inherit");
952a7a19
HL		 551 } else if (tb[IFLA_VXLAN_TTL]) {
552 ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
553 if (is_json_context() || ttl)
554 print_uint(PRINT_ANY, "ttl", "ttl %u ", ttl);
555 else
556 print_string(PRINT_FP, NULL, "ttl %s ", "auto");
557 }
a5494df2 558
3d98eba4
SB		 559 if (tb[IFLA_VXLAN_DF]) {
560 enum ifla_vxlan_df df = rta_getattr_u8(tb[IFLA_VXLAN_DF]);
561
562 if (df == VXLAN_DF_UNSET)
563 print_string(PRINT_JSON, "df", "df %s ", "unset");
564 else if (df == VXLAN_DF_SET)
565 print_string(PRINT_ANY, "df", "df %s ", "set");
566 else if (df == VXLAN_DF_INHERIT)
567 print_string(PRINT_ANY, "df", "df %s ", "inherit");
568 }
569
f8eb79a6
DB		 570 if (tb[IFLA_VXLAN_LABEL]) {
571 __u32 label = rta_getattr_u32(tb[IFLA_VXLAN_LABEL]);
572
573 if (label)
90c5c969
SH		 574 print_0xhex(PRINT_ANY, "label",
575 "flowlabel %#llx ", ntohl(label));
f8eb79a6
DB		 576 }
577
a5494df2
SH		 578 if (tb[IFLA_VXLAN_AGEING]) {
579 __u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
56f5daac 580
a5494df2 581 if (age == 0)
3b98d9b8 582 print_uint(PRINT_ANY, "ageing", "ageing none ", 0);
a5494df2 583 else
3b98d9b8 584 print_uint(PRINT_ANY, "ageing", "ageing %u ", age);
a5494df2 585 }
2d596120
SH		 586
587 if (tb[IFLA_VXLAN_LIMIT] &&
6ad5399c 588 ((maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT])) != 0))
3b98d9b8 589 print_uint(PRINT_ANY, "limit", "maxaddr %u ", maxaddr);
666cdc50 590
af325398 591 if (tb[IFLA_VXLAN_UDP_CSUM]) {
3b98d9b8
JF		 592 __u8 udp_csum = rta_getattr_u8(tb[IFLA_VXLAN_UDP_CSUM]);
593
594 if (is_json_context()) {
595 print_bool(PRINT_ANY, "udp_csum", NULL, udp_csum);
596 } else {
597 if (!udp_csum)
598 fputs("no", f);
599 fputs("udpcsum ", f);
600 }
af325398 601 }
666cdc50 602
af325398 603 if (tb[IFLA_VXLAN_UDP_ZERO_CSUM6_TX]) {
3b98d9b8
JF		 604 __u8 csum6 = rta_getattr_u8(tb[IFLA_VXLAN_UDP_ZERO_CSUM6_TX]);
605
606 if (is_json_context()) {
607 print_bool(PRINT_ANY,
608 "udp_zero_csum6_tx", NULL, csum6);
609 } else {
610 if (!csum6)
611 fputs("no", f);
612 fputs("udp6zerocsumtx ", f);
613 }
af325398 614 }
666cdc50 615
af325398 616 if (tb[IFLA_VXLAN_UDP_ZERO_CSUM6_RX]) {
3b98d9b8
JF		 617 __u8 csum6 = rta_getattr_u8(tb[IFLA_VXLAN_UDP_ZERO_CSUM6_RX]);
618
619 if (is_json_context()) {
620 print_bool(PRINT_ANY,
621 "udp_zero_csum6_rx",
622 NULL,
623 csum6);
624 } else {
625 if (!csum6)
626 fputs("no", f);
627 fputs("udp6zerocsumrx ", f);
628 }
af325398 629 }
2eb90dc7 630
35f59d86
TH		 631 if (tb[IFLA_VXLAN_REMCSUM_TX] &&
632 rta_getattr_u8(tb[IFLA_VXLAN_REMCSUM_TX]))
3b98d9b8 633 print_bool(PRINT_ANY, "remcsum_tx", "remcsumtx ", true);
35f59d86
TH		 634
635 if (tb[IFLA_VXLAN_REMCSUM_RX] &&
636 rta_getattr_u8(tb[IFLA_VXLAN_REMCSUM_RX]))
3b98d9b8 637 print_bool(PRINT_ANY, "remcsum_rx", "remcsumrx ", true);
35f59d86 638
2eb90dc7 639 if (tb[IFLA_VXLAN_GBP])
3b98d9b8 640 print_bool(PRINT_ANY, "gbp", "gbp ", true);
346410bd 641 if (tb[IFLA_VXLAN_GPE])
3b98d9b8 642 print_bool(PRINT_ANY, "gpe", "gpe ", true);
a5494df2
SH		 643}
644
561e650e 645static void vxlan_print_help(struct link_util *lu, int argc, char **argv,
3b98d9b8 646 FILE *f)
561e650e 647{
648 print_explain(f);
649}
650
a5494df2
SH		 651struct link_util vxlan_link_util = {
652 .id = "vxlan",
653 .maxattr = IFLA_VXLAN_MAX,
654 .parse_opt = vxlan_parse_opt,
655 .print_opt = vxlan_print_opt,
561e650e 656 .print_help = vxlan_print_help,
a5494df2 657};
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