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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#define VXLAN_ATTRSET(attrs, type) (((attrs) & (1L << (type))) != 0)
25
26static void print_explain(FILE *f)
27{
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"
34 " [ df DF ]\n"
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"
55 " TTL := { 1..255 | auto | inherit }\n"
56 " DF := { unset | set | inherit }\n"
57 " LABEL := 0-1048575\n"
58 );
59}
60
61static void explain(void)
62{
63 print_explain(stderr);
64}
65
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
76static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
77 struct nlmsghdr *n)
78{
79 inet_prefix saddr, daddr;
80 __u32 vni = 0;
81 __u8 learning = 1;
82 __u16 dstport = 0;
83 __u8 metadata = 0;
84 __u64 attrs = 0;
85 bool set_op = (n->nlmsg_type == RTM_NEWLINK &&
86 !(n->nlmsg_flags & NLM_F_CREATE));
87 bool selected_family = false;
88
89 saddr.family = daddr.family = AF_UNSPEC;
90
91 inet_prefix_reset(&saddr);
92 inet_prefix_reset(&daddr);
93
94 while (argc > 0) {
95 if (!matches(*argv, "id") ||
96 !matches(*argv, "vni")) {
97
98
99
100 NEXT_ARG();
101 check_duparg(&attrs, IFLA_VXLAN_ID, "id", *argv);
102 if (get_u32(&vni, *argv, 0) ||
103 vni >= 1u << 24)
104 invarg("invalid id", *argv);
105 } else if (!matches(*argv, "group")) {
106 if (is_addrtype_inet_not_multi(&daddr)) {
107 fprintf(stderr, "vxlan: both group and remote");
108 fprintf(stderr, " cannot be specified\n");
109 return -1;
110 }
111 NEXT_ARG();
112 check_duparg(&attrs, IFLA_VXLAN_GROUP, "group", *argv);
113 get_addr(&daddr, *argv, saddr.family);
114 if (!is_addrtype_inet_multi(&daddr))
115 invarg("invalid group address", *argv);
116 } else if (!matches(*argv, "remote")) {
117 if (is_addrtype_inet_multi(&daddr)) {
118 fprintf(stderr, "vxlan: both group and remote");
119 fprintf(stderr, " cannot be specified\n");
120 return -1;
121 }
122 NEXT_ARG();
123 check_duparg(&attrs, IFLA_VXLAN_GROUP, "remote", *argv);
124 get_addr(&daddr, *argv, saddr.family);
125 if (!is_addrtype_inet_not_multi(&daddr))
126 invarg("invalid remote address", *argv);
127 } else if (!matches(*argv, "local")) {
128 NEXT_ARG();
129 check_duparg(&attrs, IFLA_VXLAN_LOCAL, "local", *argv);
130 get_addr(&saddr, *argv, daddr.family);
131 if (!is_addrtype_inet_not_multi(&saddr))
132 invarg("invalid local address", *argv);
133 } else if (!matches(*argv, "dev")) {
134 unsigned int link;
135
136 NEXT_ARG();
137 check_duparg(&attrs, IFLA_VXLAN_LINK, "dev", *argv);
138 link = ll_name_to_index(*argv);
139 if (!link)
140 exit(nodev(*argv));
141 addattr32(n, 1024, IFLA_VXLAN_LINK, link);
142 } else if (!matches(*argv, "ttl") ||
143 !matches(*argv, "hoplimit")) {
144 unsigned int uval;
145 __u8 ttl = 0;
146
147 NEXT_ARG();
148 check_duparg(&attrs, IFLA_VXLAN_TTL, "ttl", *argv);
149 if (strcmp(*argv, "inherit") == 0) {
150 addattr(n, 1024, IFLA_VXLAN_TTL_INHERIT);
151 } else if (strcmp(*argv, "auto") == 0) {
152 addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
153 } else {
154 if (get_unsigned(&uval, *argv, 0))
155 invarg("invalid TTL", *argv);
156 if (uval > 255)
157 invarg("TTL must be <= 255", *argv);
158 ttl = uval;
159 addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
160 }
161 } else if (!matches(*argv, "tos") ||
162 !matches(*argv, "dsfield")) {
163 __u32 uval;
164 __u8 tos;
165
166 NEXT_ARG();
167 check_duparg(&attrs, IFLA_VXLAN_TOS, "tos", *argv);
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;
174 addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
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);
191 } else if (!matches(*argv, "label") ||
192 !matches(*argv, "flowlabel")) {
193 __u32 uval;
194
195 NEXT_ARG();
196 check_duparg(&attrs, IFLA_VXLAN_LABEL, "flowlabel",
197 *argv);
198 if (get_u32(&uval, *argv, 0) ||
199 (uval & ~LABEL_MAX_MASK))
200 invarg("invalid flowlabel", *argv);
201 addattr32(n, 1024, IFLA_VXLAN_LABEL, htonl(uval));
202 } else if (!matches(*argv, "ageing")) {
203 __u32 age;
204
205 NEXT_ARG();
206 check_duparg(&attrs, IFLA_VXLAN_AGEING, "ageing",
207 *argv);
208 if (strcmp(*argv, "none") == 0)
209 age = 0;
210 else if (get_u32(&age, *argv, 0))
211 invarg("ageing timer", *argv);
212 addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
213 } else if (!matches(*argv, "maxaddress")) {
214 __u32 maxaddr;
215
216 NEXT_ARG();
217 check_duparg(&attrs, IFLA_VXLAN_LIMIT,
218 "maxaddress", *argv);
219 if (strcmp(*argv, "unlimited") == 0)
220 maxaddr = 0;
221 else if (get_u32(&maxaddr, *argv, 0))
222 invarg("max addresses", *argv);
223 addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
224 } else if (!matches(*argv, "port") ||
225 !matches(*argv, "srcport")) {
226 struct ifla_vxlan_port_range range = { 0, 0 };
227
228 NEXT_ARG();
229 check_duparg(&attrs, IFLA_VXLAN_PORT_RANGE, "srcport",
230 *argv);
231 if (get_be16(&range.low, *argv, 0))
232 invarg("min port", *argv);
233 NEXT_ARG();
234 if (get_be16(&range.high, *argv, 0))
235 invarg("max port", *argv);
236 if (range.low || range.high) {
237 addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
238 &range, sizeof(range));
239 }
240 } else if (!matches(*argv, "dstport")) {
241 NEXT_ARG();
242 check_duparg(&attrs, IFLA_VXLAN_PORT, "dstport", *argv);
243 if (get_u16(&dstport, *argv, 0))
244 invarg("dst port", *argv);
245 } else if (!matches(*argv, "nolearning")) {
246 check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
247 learning = 0;
248 } else if (!matches(*argv, "learning")) {
249 check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
250 learning = 1;
251 } else if (!matches(*argv, "noproxy")) {
252 check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
253 addattr8(n, 1024, IFLA_VXLAN_PROXY, 0);
254 } else if (!matches(*argv, "proxy")) {
255 check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
256 addattr8(n, 1024, IFLA_VXLAN_PROXY, 1);
257 } else if (!matches(*argv, "norsc")) {
258 check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
259 addattr8(n, 1024, IFLA_VXLAN_RSC, 0);
260 } else if (!matches(*argv, "rsc")) {
261 check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
262 addattr8(n, 1024, IFLA_VXLAN_RSC, 1);
263 } else if (!matches(*argv, "nol2miss")) {
264 check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
265 addattr8(n, 1024, IFLA_VXLAN_L2MISS, 0);
266 } else if (!matches(*argv, "l2miss")) {
267 check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
268 addattr8(n, 1024, IFLA_VXLAN_L2MISS, 1);
269 } else if (!matches(*argv, "nol3miss")) {
270 check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
271 addattr8(n, 1024, IFLA_VXLAN_L3MISS, 0);
272 } else if (!matches(*argv, "l3miss")) {
273 check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
274 addattr8(n, 1024, IFLA_VXLAN_L3MISS, 1);
275 } else if (!matches(*argv, "udpcsum")) {
276 check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
277 addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 1);
278 } else if (!matches(*argv, "noudpcsum")) {
279 check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
280 addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 0);
281 } else if (!matches(*argv, "udp6zerocsumtx")) {
282 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
283 *argv, *argv);
284 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 1);
285 } else if (!matches(*argv, "noudp6zerocsumtx")) {
286 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
287 *argv, *argv);
288 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 0);
289 } else if (!matches(*argv, "udp6zerocsumrx")) {
290 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
291 *argv, *argv);
292 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
293 } else if (!matches(*argv, "noudp6zerocsumrx")) {
294 check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
295 *argv, *argv);
296 addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 0);
297 } else if (!matches(*argv, "remcsumtx")) {
298 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
299 *argv, *argv);
300 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 1);
301 } else if (!matches(*argv, "noremcsumtx")) {
302 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
303 *argv, *argv);
304 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 0);
305 } else if (!matches(*argv, "remcsumrx")) {
306 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
307 *argv, *argv);
308 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 1);
309 } else if (!matches(*argv, "noremcsumrx")) {
310 check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
311 *argv, *argv);
312 addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 0);
313 } else if (!matches(*argv, "external")) {
314 check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
315 *argv, *argv);
316 metadata = 1;
317 learning = 0;
318
319 addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
320 metadata);
321 } else if (!matches(*argv, "noexternal")) {
322 check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
323 *argv, *argv);
324 metadata = 0;
325 addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
326 metadata);
327 } else if (!matches(*argv, "gbp")) {
328 check_duparg(&attrs, IFLA_VXLAN_GBP, *argv, *argv);
329 addattr_l(n, 1024, IFLA_VXLAN_GBP, NULL, 0);
330 } else if (!matches(*argv, "gpe")) {
331 check_duparg(&attrs, IFLA_VXLAN_GPE, *argv, *argv);
332 addattr_l(n, 1024, IFLA_VXLAN_GPE, NULL, 0);
333 } else if (matches(*argv, "help") == 0) {
334 explain();
335 return -1;
336 } else {
337 fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
338 explain();
339 return -1;
340 }
341 argc--, argv++;
342 }
343
344 if (metadata && VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID)) {
345 fprintf(stderr, "vxlan: both 'external' and vni cannot be specified\n");
346 return -1;
347 }
348
349 if (!metadata && !VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID) && !set_op) {
350 fprintf(stderr, "vxlan: missing virtual network identifier\n");
351 return -1;
352 }
353
354 if (is_addrtype_inet_multi(&daddr) &&
355 !VXLAN_ATTRSET(attrs, IFLA_VXLAN_LINK)) {
356 fprintf(stderr, "vxlan: 'group' requires 'dev' to be specified\n");
357 return -1;
358 }
359
360 if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) &&
361 VXLAN_ATTRSET(attrs, IFLA_VXLAN_GPE)) {
362 dstport = 4790;
363 } else if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) && !set_op) {
364 fprintf(stderr, "vxlan: destination port not specified\n"
365 "Will use Linux kernel default (non-standard value)\n");
366 fprintf(stderr,
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
371 if (VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID))
372 addattr32(n, 1024, IFLA_VXLAN_ID, vni);
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);
378 selected_family = true;
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);
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 }
398 }
399
400 if (!set_op || VXLAN_ATTRSET(attrs, IFLA_VXLAN_LEARNING))
401 addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
402
403 if (dstport)
404 addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));
405
406 return 0;
407}
408
409static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
410{
411 __u8 ttl = 0;
412 __u8 tos = 0;
413 __u32 maxaddr;
414
415 if (!tb)
416 return;
417
418 if (tb[IFLA_VXLAN_COLLECT_METADATA] &&
419 rta_getattr_u8(tb[IFLA_VXLAN_COLLECT_METADATA])) {
420 print_bool(PRINT_ANY, "external", "external ", true);
421 }
422
423 if (tb[IFLA_VXLAN_ID] &&
424 RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) >= sizeof(__u32)) {
425 print_uint(PRINT_ANY, "id", "id %u ", rta_getattr_u32(tb[IFLA_VXLAN_ID]));
426 }
427
428 if (tb[IFLA_VXLAN_GROUP]) {
429 __be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
430
431 if (addr) {
432 if (IN_MULTICAST(ntohl(addr)))
433 print_string(PRINT_ANY,
434 "group",
435 "group %s ",
436 format_host(AF_INET, 4, &addr));
437 else
438 print_string(PRINT_ANY,
439 "remote",
440 "remote %s ",
441 format_host(AF_INET, 4, &addr));
442 }
443 } else if (tb[IFLA_VXLAN_GROUP6]) {
444 struct in6_addr addr;
445
446 memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_GROUP6]), sizeof(struct in6_addr));
447 if (!IN6_IS_ADDR_UNSPECIFIED(&addr)) {
448 if (IN6_IS_ADDR_MULTICAST(&addr))
449 print_string(PRINT_ANY,
450 "group6",
451 "group %s ",
452 format_host(AF_INET6,
453 sizeof(struct in6_addr),
454 &addr));
455 else
456 print_string(PRINT_ANY,
457 "remote6",
458 "remote %s ",
459 format_host(AF_INET6,
460 sizeof(struct in6_addr),
461 &addr));
462 }
463 }
464
465 if (tb[IFLA_VXLAN_LOCAL]) {
466 __be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
467
468 if (addr)
469 print_string(PRINT_ANY,
470 "local",
471 "local %s ",
472 format_host(AF_INET, 4, &addr));
473 } else if (tb[IFLA_VXLAN_LOCAL6]) {
474 struct in6_addr addr;
475
476 memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_LOCAL6]), sizeof(struct in6_addr));
477 if (!IN6_IS_ADDR_UNSPECIFIED(&addr))
478 print_string(PRINT_ANY,
479 "local6",
480 "local %s ",
481 format_host(AF_INET6,
482 sizeof(struct in6_addr),
483 &addr));
484 }
485
486 if (tb[IFLA_VXLAN_LINK]) {
487 unsigned int link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]);
488
489 if (link) {
490 print_string(PRINT_ANY, "link", "dev %s ",
491 ll_index_to_name(link));
492 }
493 }
494
495 if (tb[IFLA_VXLAN_PORT_RANGE]) {
496 const struct ifla_vxlan_port_range *r
497 = RTA_DATA(tb[IFLA_VXLAN_PORT_RANGE]);
498 if (is_json_context()) {
499 open_json_object("port_range");
500 print_uint(PRINT_JSON, "low", NULL, ntohs(r->low));
501 print_uint(PRINT_JSON, "high", NULL, ntohs(r->high));
502 close_json_object();
503 } else {
504 fprintf(f, "srcport %u %u ",
505 ntohs(r->low), ntohs(r->high));
506 }
507 }
508
509 if (tb[IFLA_VXLAN_PORT])
510 print_uint(PRINT_ANY,
511 "port",
512 "dstport %u ",
513 rta_getattr_be16(tb[IFLA_VXLAN_PORT]));
514
515 if (tb[IFLA_VXLAN_LEARNING]) {
516 __u8 learning = rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]);
517
518 print_bool(PRINT_JSON, "learning", NULL, learning);
519 if (!learning)
520 print_bool(PRINT_FP, NULL, "nolearning ", true);
521 }
522
523 if (tb[IFLA_VXLAN_PROXY] && rta_getattr_u8(tb[IFLA_VXLAN_PROXY]))
524 print_bool(PRINT_ANY, "proxy", "proxy ", true);
525
526 if (tb[IFLA_VXLAN_RSC] && rta_getattr_u8(tb[IFLA_VXLAN_RSC]))
527 print_bool(PRINT_ANY, "rsc", "rsc ", true);
528
529 if (tb[IFLA_VXLAN_L2MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L2MISS]))
530 print_bool(PRINT_ANY, "l2miss", "l2miss ", true);
531
532 if (tb[IFLA_VXLAN_L3MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L3MISS]))
533 print_bool(PRINT_ANY, "l3miss", "l3miss ", true);
534
535 if (tb[IFLA_VXLAN_TOS])
536 tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]);
537 if (tos) {
538 if (is_json_context() || tos != 1)
539 print_0xhex(PRINT_ANY, "tos", "tos %#llx ", tos);
540 else
541 print_string(PRINT_FP, NULL, "tos %s ", "inherit");
542 }
543
544 if (tb[IFLA_VXLAN_TTL_INHERIT] &&
545 rta_getattr_u8(tb[IFLA_VXLAN_TTL_INHERIT])) {
546 print_string(PRINT_FP, NULL, "ttl %s ", "inherit");
547 } else if (tb[IFLA_VXLAN_TTL]) {
548 ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
549 if (is_json_context() || ttl)
550 print_uint(PRINT_ANY, "ttl", "ttl %u ", ttl);
551 else
552 print_string(PRINT_FP, NULL, "ttl %s ", "auto");
553 }
554
555 if (tb[IFLA_VXLAN_DF]) {
556 enum ifla_vxlan_df df = rta_getattr_u8(tb[IFLA_VXLAN_DF]);
557
558 if (df == VXLAN_DF_UNSET)
559 print_string(PRINT_JSON, "df", "df %s ", "unset");
560 else if (df == VXLAN_DF_SET)
561 print_string(PRINT_ANY, "df", "df %s ", "set");
562 else if (df == VXLAN_DF_INHERIT)
563 print_string(PRINT_ANY, "df", "df %s ", "inherit");
564 }
565
566 if (tb[IFLA_VXLAN_LABEL]) {
567 __u32 label = rta_getattr_u32(tb[IFLA_VXLAN_LABEL]);
568
569 if (label)
570 print_0xhex(PRINT_ANY, "label",
571 "flowlabel %#llx ", ntohl(label));
572 }
573
574 if (tb[IFLA_VXLAN_AGEING]) {
575 __u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
576
577 if (age == 0)
578 print_uint(PRINT_ANY, "ageing", "ageing none ", 0);
579 else
580 print_uint(PRINT_ANY, "ageing", "ageing %u ", age);
581 }
582
583 if (tb[IFLA_VXLAN_LIMIT] &&
584 ((maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT])) != 0))
585 print_uint(PRINT_ANY, "limit", "maxaddr %u ", maxaddr);
586
587 if (tb[IFLA_VXLAN_UDP_CSUM]) {
588 __u8 udp_csum = rta_getattr_u8(tb[IFLA_VXLAN_UDP_CSUM]);
589
590 if (is_json_context()) {
591 print_bool(PRINT_ANY, "udp_csum", NULL, udp_csum);
592 } else {
593 if (!udp_csum)
594 fputs("no", f);
595 fputs("udpcsum ", f);
596 }
597 }
598
599 if (tb[IFLA_VXLAN_UDP_ZERO_CSUM6_TX]) {
600 __u8 csum6 = rta_getattr_u8(tb[IFLA_VXLAN_UDP_ZERO_CSUM6_TX]);
601
602 if (is_json_context()) {
603 print_bool(PRINT_ANY,
604 "udp_zero_csum6_tx", NULL, csum6);
605 } else {
606 if (!csum6)
607 fputs("no", f);
608 fputs("udp6zerocsumtx ", f);
609 }
610 }
611
612 if (tb[IFLA_VXLAN_UDP_ZERO_CSUM6_RX]) {
613 __u8 csum6 = rta_getattr_u8(tb[IFLA_VXLAN_UDP_ZERO_CSUM6_RX]);
614
615 if (is_json_context()) {
616 print_bool(PRINT_ANY,
617 "udp_zero_csum6_rx",
618 NULL,
619 csum6);
620 } else {
621 if (!csum6)
622 fputs("no", f);
623 fputs("udp6zerocsumrx ", f);
624 }
625 }
626
627 if (tb[IFLA_VXLAN_REMCSUM_TX] &&
628 rta_getattr_u8(tb[IFLA_VXLAN_REMCSUM_TX]))
629 print_bool(PRINT_ANY, "remcsum_tx", "remcsumtx ", true);
630
631 if (tb[IFLA_VXLAN_REMCSUM_RX] &&
632 rta_getattr_u8(tb[IFLA_VXLAN_REMCSUM_RX]))
633 print_bool(PRINT_ANY, "remcsum_rx", "remcsumrx ", true);
634
635 if (tb[IFLA_VXLAN_GBP])
636 print_bool(PRINT_ANY, "gbp", "gbp ", true);
637 if (tb[IFLA_VXLAN_GPE])
638 print_bool(PRINT_ANY, "gpe", "gpe ", true);
639}
640
641static void vxlan_print_help(struct link_util *lu, int argc, char **argv,
642 FILE *f)
643{
644 print_explain(f);
645}
646
647struct link_util vxlan_link_util = {
648 .id = "vxlan",
649 .maxattr = IFLA_VXLAN_MAX,
650 .parse_opt = vxlan_parse_opt,
651 .print_opt = vxlan_print_opt,
652 .print_help = vxlan_print_help,
653};
654
