xref: /freebsd/sbin/ifconfig/ifvxlan.c (revision 4d846d26)
1 /*-
2  * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/param.h>
31 #include <sys/ioctl.h>
32 #include <sys/socket.h>
33 #include <sys/sockio.h>
34 
35 #include <stdlib.h>
36 #include <stdint.h>
37 #include <unistd.h>
38 #include <netdb.h>
39 
40 #include <net/ethernet.h>
41 #include <net/if.h>
42 #include <net/if_vxlan.h>
43 #include <net/route.h>
44 #include <netinet/in.h>
45 
46 #include <ctype.h>
47 #include <stdio.h>
48 #include <string.h>
49 #include <stdlib.h>
50 #include <unistd.h>
51 #include <err.h>
52 #include <errno.h>
53 
54 #include "ifconfig.h"
55 
56 static struct ifvxlanparam params = {
57 	.vxlp_vni	= VXLAN_VNI_MAX,
58 };
59 
60 static int
61 get_val(const char *cp, u_long *valp)
62 {
63 	char *endptr;
64 	u_long val;
65 
66 	errno = 0;
67 	val = strtoul(cp, &endptr, 0);
68 	if (cp[0] == '\0' || endptr[0] != '\0' || errno == ERANGE)
69 		return (-1);
70 
71 	*valp = val;
72 	return (0);
73 }
74 
75 static int
76 do_cmd(int sock, u_long op, void *arg, size_t argsize, int set)
77 {
78 	struct ifdrv ifd;
79 
80 	bzero(&ifd, sizeof(ifd));
81 
82 	strlcpy(ifd.ifd_name, ifr.ifr_name, sizeof(ifd.ifd_name));
83 	ifd.ifd_cmd = op;
84 	ifd.ifd_len = argsize;
85 	ifd.ifd_data = arg;
86 
87 	return (ioctl(sock, set ? SIOCSDRVSPEC : SIOCGDRVSPEC, &ifd));
88 }
89 
90 static int
91 vxlan_exists(int sock)
92 {
93 	struct ifvxlancfg cfg;
94 
95 	bzero(&cfg, sizeof(cfg));
96 
97 	return (do_cmd(sock, VXLAN_CMD_GET_CONFIG, &cfg, sizeof(cfg), 0) != -1);
98 }
99 
100 static void
101 vxlan_status(int s)
102 {
103 	struct ifvxlancfg cfg;
104 	char src[NI_MAXHOST], dst[NI_MAXHOST];
105 	char srcport[NI_MAXSERV], dstport[NI_MAXSERV];
106 	struct sockaddr *lsa, *rsa;
107 	int vni, mc, ipv6;
108 
109 	bzero(&cfg, sizeof(cfg));
110 
111 	if (do_cmd(s, VXLAN_CMD_GET_CONFIG, &cfg, sizeof(cfg), 0) < 0)
112 		return;
113 
114 	vni = cfg.vxlc_vni;
115 	lsa = &cfg.vxlc_local_sa.sa;
116 	rsa = &cfg.vxlc_remote_sa.sa;
117 	ipv6 = rsa->sa_family == AF_INET6;
118 
119 	/* Just report nothing if the network identity isn't set yet. */
120 	if (vni >= VXLAN_VNI_MAX)
121 		return;
122 
123 	if (getnameinfo(lsa, lsa->sa_len, src, sizeof(src),
124 	    srcport, sizeof(srcport), NI_NUMERICHOST | NI_NUMERICSERV) != 0)
125 		src[0] = srcport[0] = '\0';
126 	if (getnameinfo(rsa, rsa->sa_len, dst, sizeof(dst),
127 	    dstport, sizeof(dstport), NI_NUMERICHOST | NI_NUMERICSERV) != 0)
128 		dst[0] = dstport[0] = '\0';
129 
130 	if (!ipv6) {
131 		struct sockaddr_in *sin = (struct sockaddr_in *)rsa;
132 		mc = IN_MULTICAST(ntohl(sin->sin_addr.s_addr));
133 	} else {
134 		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)rsa;
135 		mc = IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr);
136 	}
137 
138 	printf("\tvxlan vni %d", vni);
139 	printf(" local %s%s%s:%s", ipv6 ? "[" : "", src, ipv6 ? "]" : "",
140 	    srcport);
141 	printf(" %s %s%s%s:%s", mc ? "group" : "remote", ipv6 ? "[" : "",
142 	    dst, ipv6 ? "]" : "", dstport);
143 
144 	if (verbose) {
145 		printf("\n\t\tconfig: ");
146 		printf("%slearning portrange %d-%d ttl %d",
147 		    cfg.vxlc_learn ? "" : "no", cfg.vxlc_port_min,
148 		    cfg.vxlc_port_max, cfg.vxlc_ttl);
149 		printf("\n\t\tftable: ");
150 		printf("cnt %d max %d timeout %d",
151 		    cfg.vxlc_ftable_cnt, cfg.vxlc_ftable_max,
152 		    cfg.vxlc_ftable_timeout);
153 	}
154 
155 	putchar('\n');
156 }
157 
158 #define _LOCAL_ADDR46 \
159     (VXLAN_PARAM_WITH_LOCAL_ADDR4 | VXLAN_PARAM_WITH_LOCAL_ADDR6)
160 #define _REMOTE_ADDR46 \
161     (VXLAN_PARAM_WITH_REMOTE_ADDR4 | VXLAN_PARAM_WITH_REMOTE_ADDR6)
162 
163 static void
164 vxlan_check_params(void)
165 {
166 
167 	if ((params.vxlp_with & _LOCAL_ADDR46) == _LOCAL_ADDR46)
168 		errx(1, "cannot specify both local IPv4 and IPv6 addresses");
169 	if ((params.vxlp_with & _REMOTE_ADDR46) == _REMOTE_ADDR46)
170 		errx(1, "cannot specify both remote IPv4 and IPv6 addresses");
171 	if ((params.vxlp_with & VXLAN_PARAM_WITH_LOCAL_ADDR4 &&
172 	     params.vxlp_with & VXLAN_PARAM_WITH_REMOTE_ADDR6) ||
173 	    (params.vxlp_with & VXLAN_PARAM_WITH_LOCAL_ADDR6 &&
174 	     params.vxlp_with & VXLAN_PARAM_WITH_REMOTE_ADDR4))
175 		errx(1, "cannot mix IPv4 and IPv6 addresses");
176 }
177 
178 #undef _LOCAL_ADDR46
179 #undef _REMOTE_ADDR46
180 
181 static void
182 vxlan_cb(int s, void *arg)
183 {
184 
185 }
186 
187 static void
188 vxlan_create(int s, struct ifreq *ifr)
189 {
190 
191 	vxlan_check_params();
192 
193 	ifr->ifr_data = (caddr_t) &params;
194 	ioctl_ifcreate(s, ifr);
195 }
196 
197 static
198 DECL_CMD_FUNC(setvxlan_vni, arg, d)
199 {
200 	struct ifvxlancmd cmd;
201 	u_long val;
202 
203 	if (get_val(arg, &val) < 0 || val >= VXLAN_VNI_MAX)
204 		errx(1, "invalid network identifier: %s", arg);
205 
206 	if (!vxlan_exists(s)) {
207 		params.vxlp_with |= VXLAN_PARAM_WITH_VNI;
208 		params.vxlp_vni = val;
209 		return;
210 	}
211 
212 	bzero(&cmd, sizeof(cmd));
213 	cmd.vxlcmd_vni = val;
214 
215 	if (do_cmd(s, VXLAN_CMD_SET_VNI, &cmd, sizeof(cmd), 1) < 0)
216 		err(1, "VXLAN_CMD_SET_VNI");
217 }
218 
219 static
220 DECL_CMD_FUNC(setvxlan_local, addr, d)
221 {
222 	struct ifvxlancmd cmd;
223 	struct addrinfo *ai;
224 	struct sockaddr *sa;
225 	int error;
226 
227 	bzero(&cmd, sizeof(cmd));
228 
229 	if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
230 		errx(1, "error in parsing local address string: %s",
231 		    gai_strerror(error));
232 
233 	sa = ai->ai_addr;
234 
235 	switch (ai->ai_family) {
236 #ifdef INET
237 	case AF_INET: {
238 		struct sockaddr_in *sin = (struct sockaddr_in *)sa;
239 
240 		if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
241 			errx(1, "local address cannot be multicast");
242 
243 		cmd.vxlcmd_sa.in4 = *sin;
244 		break;
245 	}
246 #endif
247 #ifdef INET6
248 	case AF_INET6: {
249 		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
250 
251 		if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
252 			errx(1, "local address cannot be multicast");
253 
254 		cmd.vxlcmd_sa.in6 = *sin6;
255 		break;
256 	}
257 #endif
258 	default:
259 		errx(1, "local address %s not supported", addr);
260 	}
261 
262 	freeaddrinfo(ai);
263 
264 	if (!vxlan_exists(s)) {
265 		if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
266 			params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_ADDR4;
267 			params.vxlp_local_sa.in4 = cmd.vxlcmd_sa.in4;
268 		} else {
269 			params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_ADDR6;
270 			params.vxlp_local_sa.in6 = cmd.vxlcmd_sa.in6;
271 		}
272 		return;
273 	}
274 
275 	if (do_cmd(s, VXLAN_CMD_SET_LOCAL_ADDR, &cmd, sizeof(cmd), 1) < 0)
276 		err(1, "VXLAN_CMD_SET_LOCAL_ADDR");
277 }
278 
279 static
280 DECL_CMD_FUNC(setvxlan_remote, addr, d)
281 {
282 	struct ifvxlancmd cmd;
283 	struct addrinfo *ai;
284 	struct sockaddr *sa;
285 	int error;
286 
287 	bzero(&cmd, sizeof(cmd));
288 
289 	if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
290 		errx(1, "error in parsing remote address string: %s",
291 		    gai_strerror(error));
292 
293 	sa = ai->ai_addr;
294 
295 	switch (ai->ai_family) {
296 #ifdef INET
297 	case AF_INET: {
298 		struct sockaddr_in *sin = (struct sockaddr_in *)sa;
299 
300 		if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
301 			errx(1, "remote address cannot be multicast");
302 
303 		cmd.vxlcmd_sa.in4 = *sin;
304 		break;
305 	}
306 #endif
307 #ifdef INET6
308 	case AF_INET6: {
309 		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
310 
311 		if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
312 			errx(1, "remote address cannot be multicast");
313 
314 		cmd.vxlcmd_sa.in6 = *sin6;
315 		break;
316 	}
317 #endif
318 	default:
319 		errx(1, "remote address %s not supported", addr);
320 	}
321 
322 	freeaddrinfo(ai);
323 
324 	if (!vxlan_exists(s)) {
325 		if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
326 			params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR4;
327 			params.vxlp_remote_sa.in4 = cmd.vxlcmd_sa.in4;
328 		} else {
329 			params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
330 			params.vxlp_remote_sa.in6 = cmd.vxlcmd_sa.in6;
331 		}
332 		return;
333 	}
334 
335 	if (do_cmd(s, VXLAN_CMD_SET_REMOTE_ADDR, &cmd, sizeof(cmd), 1) < 0)
336 		err(1, "VXLAN_CMD_SET_REMOTE_ADDR");
337 }
338 
339 static
340 DECL_CMD_FUNC(setvxlan_group, addr, d)
341 {
342 	struct ifvxlancmd cmd;
343 	struct addrinfo *ai;
344 	struct sockaddr *sa;
345 	int error;
346 
347 	bzero(&cmd, sizeof(cmd));
348 
349 	if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
350 		errx(1, "error in parsing group address string: %s",
351 		    gai_strerror(error));
352 
353 	sa = ai->ai_addr;
354 
355 	switch (ai->ai_family) {
356 #ifdef INET
357 	case AF_INET: {
358 		struct sockaddr_in *sin = (struct sockaddr_in *)sa;
359 
360 		if (!IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
361 			errx(1, "group address must be multicast");
362 
363 		cmd.vxlcmd_sa.in4 = *sin;
364 		break;
365 	}
366 #endif
367 #ifdef INET6
368 	case AF_INET6: {
369 		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
370 
371 		if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
372 			errx(1, "group address must be multicast");
373 
374 		cmd.vxlcmd_sa.in6 = *sin6;
375 		break;
376 	}
377 #endif
378 	default:
379 		errx(1, "group address %s not supported", addr);
380 	}
381 
382 	freeaddrinfo(ai);
383 
384 	if (!vxlan_exists(s)) {
385 		if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
386 			params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR4;
387 			params.vxlp_remote_sa.in4 = cmd.vxlcmd_sa.in4;
388 		} else {
389 			params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
390 			params.vxlp_remote_sa.in6 = cmd.vxlcmd_sa.in6;
391 		}
392 		return;
393 	}
394 
395 	if (do_cmd(s, VXLAN_CMD_SET_REMOTE_ADDR, &cmd, sizeof(cmd), 1) < 0)
396 		err(1, "VXLAN_CMD_SET_REMOTE_ADDR");
397 }
398 
399 static
400 DECL_CMD_FUNC(setvxlan_local_port, arg, d)
401 {
402 	struct ifvxlancmd cmd;
403 	u_long val;
404 
405 	if (get_val(arg, &val) < 0 || val >= UINT16_MAX)
406 		errx(1, "invalid local port: %s", arg);
407 
408 	if (!vxlan_exists(s)) {
409 		params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_PORT;
410 		params.vxlp_local_port = val;
411 		return;
412 	}
413 
414 	bzero(&cmd, sizeof(cmd));
415 	cmd.vxlcmd_port = val;
416 
417 	if (do_cmd(s, VXLAN_CMD_SET_LOCAL_PORT, &cmd, sizeof(cmd), 1) < 0)
418 		err(1, "VXLAN_CMD_SET_LOCAL_PORT");
419 }
420 
421 static
422 DECL_CMD_FUNC(setvxlan_remote_port, arg, d)
423 {
424 	struct ifvxlancmd cmd;
425 	u_long val;
426 
427 	if (get_val(arg, &val) < 0 || val >= UINT16_MAX)
428 		errx(1, "invalid remote port: %s", arg);
429 
430 	if (!vxlan_exists(s)) {
431 		params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_PORT;
432 		params.vxlp_remote_port = val;
433 		return;
434 	}
435 
436 	bzero(&cmd, sizeof(cmd));
437 	cmd.vxlcmd_port = val;
438 
439 	if (do_cmd(s, VXLAN_CMD_SET_REMOTE_PORT, &cmd, sizeof(cmd), 1) < 0)
440 		err(1, "VXLAN_CMD_SET_REMOTE_PORT");
441 }
442 
443 static
444 DECL_CMD_FUNC2(setvxlan_port_range, arg1, arg2)
445 {
446 	struct ifvxlancmd cmd;
447 	u_long min, max;
448 
449 	if (get_val(arg1, &min) < 0 || min >= UINT16_MAX)
450 		errx(1, "invalid port range minimum: %s", arg1);
451 	if (get_val(arg2, &max) < 0 || max >= UINT16_MAX)
452 		errx(1, "invalid port range maximum: %s", arg2);
453 	if (max < min)
454 		errx(1, "invalid port range");
455 
456 	if (!vxlan_exists(s)) {
457 		params.vxlp_with |= VXLAN_PARAM_WITH_PORT_RANGE;
458 		params.vxlp_min_port = min;
459 		params.vxlp_max_port = max;
460 		return;
461 	}
462 
463 	bzero(&cmd, sizeof(cmd));
464 	cmd.vxlcmd_port_min = min;
465 	cmd.vxlcmd_port_max = max;
466 
467 	if (do_cmd(s, VXLAN_CMD_SET_PORT_RANGE, &cmd, sizeof(cmd), 1) < 0)
468 		err(1, "VXLAN_CMD_SET_PORT_RANGE");
469 }
470 
471 static
472 DECL_CMD_FUNC(setvxlan_timeout, arg, d)
473 {
474 	struct ifvxlancmd cmd;
475 	u_long val;
476 
477 	if (get_val(arg, &val) < 0 || (val & ~0xFFFFFFFF) != 0)
478 		errx(1, "invalid timeout value: %s", arg);
479 
480 	if (!vxlan_exists(s)) {
481 		params.vxlp_with |= VXLAN_PARAM_WITH_FTABLE_TIMEOUT;
482 		params.vxlp_ftable_timeout = val & 0xFFFFFFFF;
483 		return;
484 	}
485 
486 	bzero(&cmd, sizeof(cmd));
487 	cmd.vxlcmd_ftable_timeout = val & 0xFFFFFFFF;
488 
489 	if (do_cmd(s, VXLAN_CMD_SET_FTABLE_TIMEOUT, &cmd, sizeof(cmd), 1) < 0)
490 		err(1, "VXLAN_CMD_SET_FTABLE_TIMEOUT");
491 }
492 
493 static
494 DECL_CMD_FUNC(setvxlan_maxaddr, arg, d)
495 {
496 	struct ifvxlancmd cmd;
497 	u_long val;
498 
499 	if (get_val(arg, &val) < 0 || (val & ~0xFFFFFFFF) != 0)
500 		errx(1, "invalid maxaddr value: %s",  arg);
501 
502 	if (!vxlan_exists(s)) {
503 		params.vxlp_with |= VXLAN_PARAM_WITH_FTABLE_MAX;
504 		params.vxlp_ftable_max = val & 0xFFFFFFFF;
505 		return;
506 	}
507 
508 	bzero(&cmd, sizeof(cmd));
509 	cmd.vxlcmd_ftable_max = val & 0xFFFFFFFF;
510 
511 	if (do_cmd(s, VXLAN_CMD_SET_FTABLE_MAX, &cmd, sizeof(cmd), 1) < 0)
512 		err(1, "VXLAN_CMD_SET_FTABLE_MAX");
513 }
514 
515 static
516 DECL_CMD_FUNC(setvxlan_dev, arg, d)
517 {
518 	struct ifvxlancmd cmd;
519 
520 	if (!vxlan_exists(s)) {
521 		params.vxlp_with |= VXLAN_PARAM_WITH_MULTICAST_IF;
522 		strlcpy(params.vxlp_mc_ifname, arg,
523 		    sizeof(params.vxlp_mc_ifname));
524 		return;
525 	}
526 
527 	bzero(&cmd, sizeof(cmd));
528 	strlcpy(cmd.vxlcmd_ifname, arg, sizeof(cmd.vxlcmd_ifname));
529 
530 	if (do_cmd(s, VXLAN_CMD_SET_MULTICAST_IF, &cmd, sizeof(cmd), 1) < 0)
531 		err(1, "VXLAN_CMD_SET_MULTICAST_IF");
532 }
533 
534 static
535 DECL_CMD_FUNC(setvxlan_ttl, arg, d)
536 {
537 	struct ifvxlancmd cmd;
538 	u_long val;
539 
540 	if (get_val(arg, &val) < 0 || val > 256)
541 		errx(1, "invalid TTL value: %s", arg);
542 
543 	if (!vxlan_exists(s)) {
544 		params.vxlp_with |= VXLAN_PARAM_WITH_TTL;
545 		params.vxlp_ttl = val;
546 		return;
547 	}
548 
549 	bzero(&cmd, sizeof(cmd));
550 	cmd.vxlcmd_ttl = val;
551 
552 	if (do_cmd(s, VXLAN_CMD_SET_TTL, &cmd, sizeof(cmd), 1) < 0)
553 		err(1, "VXLAN_CMD_SET_TTL");
554 }
555 
556 static
557 DECL_CMD_FUNC(setvxlan_learn, arg, d)
558 {
559 	struct ifvxlancmd cmd;
560 
561 	if (!vxlan_exists(s)) {
562 		params.vxlp_with |= VXLAN_PARAM_WITH_LEARN;
563 		params.vxlp_learn = d;
564 		return;
565 	}
566 
567 	bzero(&cmd, sizeof(cmd));
568 	if (d != 0)
569 		cmd.vxlcmd_flags |= VXLAN_CMD_FLAG_LEARN;
570 
571 	if (do_cmd(s, VXLAN_CMD_SET_LEARN, &cmd, sizeof(cmd), 1) < 0)
572 		err(1, "VXLAN_CMD_SET_LEARN");
573 }
574 
575 static void
576 setvxlan_flush(const char *val, int d, int s, const struct afswtch *afp)
577 {
578 	struct ifvxlancmd cmd;
579 
580 	bzero(&cmd, sizeof(cmd));
581 	if (d != 0)
582 		cmd.vxlcmd_flags |= VXLAN_CMD_FLAG_FLUSH_ALL;
583 
584 	if (do_cmd(s, VXLAN_CMD_FLUSH, &cmd, sizeof(cmd), 1) < 0)
585 		err(1, "VXLAN_CMD_FLUSH");
586 }
587 
588 static struct cmd vxlan_cmds[] = {
589 
590 	DEF_CLONE_CMD_ARG("vni",                setvxlan_vni),
591 	DEF_CLONE_CMD_ARG("vxlanid",		setvxlan_vni),
592 	DEF_CLONE_CMD_ARG("vxlanlocal",		setvxlan_local),
593 	DEF_CLONE_CMD_ARG("vxlanremote",	setvxlan_remote),
594 	DEF_CLONE_CMD_ARG("vxlangroup",		setvxlan_group),
595 	DEF_CLONE_CMD_ARG("vxlanlocalport",	setvxlan_local_port),
596 	DEF_CLONE_CMD_ARG("vxlanremoteport",	setvxlan_remote_port),
597 	DEF_CLONE_CMD_ARG2("vxlanportrange",	setvxlan_port_range),
598 	DEF_CLONE_CMD_ARG("vxlantimeout",	setvxlan_timeout),
599 	DEF_CLONE_CMD_ARG("vxlanmaxaddr",	setvxlan_maxaddr),
600 	DEF_CLONE_CMD_ARG("vxlandev",		setvxlan_dev),
601 	DEF_CLONE_CMD_ARG("vxlanttl",		setvxlan_ttl),
602 	DEF_CLONE_CMD("vxlanlearn", 1,		setvxlan_learn),
603 	DEF_CLONE_CMD("-vxlanlearn", 0,		setvxlan_learn),
604 
605 	DEF_CMD_ARG("vni",			setvxlan_vni),
606 	DEF_CMD_ARG("vxlanid",			setvxlan_vni),
607 	DEF_CMD_ARG("vxlanlocal",		setvxlan_local),
608 	DEF_CMD_ARG("vxlanremote",		setvxlan_remote),
609 	DEF_CMD_ARG("vxlangroup",		setvxlan_group),
610 	DEF_CMD_ARG("vxlanlocalport",		setvxlan_local_port),
611 	DEF_CMD_ARG("vxlanremoteport",		setvxlan_remote_port),
612 	DEF_CMD_ARG2("vxlanportrange",		setvxlan_port_range),
613 	DEF_CMD_ARG("vxlantimeout",		setvxlan_timeout),
614 	DEF_CMD_ARG("vxlanmaxaddr",		setvxlan_maxaddr),
615 	DEF_CMD_ARG("vxlandev",			setvxlan_dev),
616 	DEF_CMD_ARG("vxlanttl",			setvxlan_ttl),
617 	DEF_CMD("vxlanlearn", 1,		setvxlan_learn),
618 	DEF_CMD("-vxlanlearn", 0,		setvxlan_learn),
619 
620 	DEF_CMD("vxlanflush", 0,		setvxlan_flush),
621 	DEF_CMD("vxlanflushall", 1,		setvxlan_flush),
622 
623 	DEF_CMD("vxlanhwcsum",	IFCAP_VXLAN_HWCSUM,	setifcap),
624 	DEF_CMD("-vxlanhwcsum",	-IFCAP_VXLAN_HWCSUM,	setifcap),
625 	DEF_CMD("vxlanhwtso",	IFCAP_VXLAN_HWTSO,	setifcap),
626 	DEF_CMD("-vxlanhwtso",	-IFCAP_VXLAN_HWTSO,	setifcap),
627 };
628 
629 static struct afswtch af_vxlan = {
630 	.af_name		= "af_vxlan",
631 	.af_af			= AF_UNSPEC,
632 	.af_other_status	= vxlan_status,
633 };
634 
635 static __constructor void
636 vxlan_ctor(void)
637 {
638 	size_t i;
639 
640 	for (i = 0; i < nitems(vxlan_cmds); i++)
641 		cmd_register(&vxlan_cmds[i]);
642 	af_register(&af_vxlan);
643 	callback_register(vxlan_cb, NULL);
644 	clone_setdefcallback_prefix("vxlan", vxlan_create);
645 }
646