2 * Copyright (c) 2014, Bryan Venteicher <bryanv@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
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.
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.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/ioctl.h>
32 #include <sys/socket.h>
33 #include <sys/sockio.h>
40 #include <net/ethernet.h>
42 #include <net/if_vxlan.h>
43 #include <net/route.h>
44 #include <netinet/in.h>
56 static struct ifvxlanparam params = {
57 .vxlp_vni = VXLAN_VNI_MAX,
61 get_val(const char *cp, u_long *valp)
67 val = strtoul(cp, &endptr, 0);
68 if (cp[0] == '\0' || endptr[0] != '\0' || errno == ERANGE)
76 do_cmd(int sock, u_long op, void *arg, size_t argsize, int set)
80 bzero(&ifd, sizeof(ifd));
82 strlcpy(ifd.ifd_name, ifr.ifr_name, sizeof(ifd.ifd_name));
84 ifd.ifd_len = argsize;
87 return (ioctl(sock, set ? SIOCSDRVSPEC : SIOCGDRVSPEC, &ifd));
91 vxlan_exists(int sock)
93 struct ifvxlancfg cfg;
95 bzero(&cfg, sizeof(cfg));
97 return (do_cmd(sock, VXLAN_CMD_GET_CONFIG, &cfg, sizeof(cfg), 0) != -1);
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;
109 bzero(&cfg, sizeof(cfg));
111 if (do_cmd(s, VXLAN_CMD_GET_CONFIG, &cfg, sizeof(cfg), 0) < 0)
115 lsa = &cfg.vxlc_local_sa.sa;
116 rsa = &cfg.vxlc_remote_sa.sa;
117 ipv6 = rsa->sa_family == AF_INET6;
119 /* Just report nothing if the network identity isn't set yet. */
120 if (vni >= VXLAN_VNI_MAX)
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';
131 struct sockaddr_in *sin = (struct sockaddr_in *)rsa;
132 mc = IN_MULTICAST(ntohl(sin->sin_addr.s_addr));
134 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)rsa;
135 mc = IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr);
138 printf("\tvxlan vni %d", vni);
139 printf(" local %s%s%s:%s", ipv6 ? "[" : "", src, ipv6 ? "]" : "",
141 printf(" %s %s%s%s:%s", mc ? "group" : "remote", ipv6 ? "[" : "",
142 dst, ipv6 ? "]" : "", dstport);
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);
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)
164 vxlan_check_params(void)
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");
179 #undef _REMOTE_ADDR46
182 vxlan_cb(int s, void *arg)
188 vxlan_create(int s, struct ifreq *ifr)
191 vxlan_check_params();
193 ifr->ifr_data = (caddr_t) ¶ms;
194 ioctl_ifcreate(s, ifr);
198 DECL_CMD_FUNC(setvxlan_vni, arg, d)
200 struct ifvxlancmd cmd;
203 if (get_val(arg, &val) < 0 || val >= VXLAN_VNI_MAX)
204 errx(1, "invalid network identifier: %s", arg);
206 if (!vxlan_exists(s)) {
207 params.vxlp_with |= VXLAN_PARAM_WITH_VNI;
208 params.vxlp_vni = val;
212 bzero(&cmd, sizeof(cmd));
213 cmd.vxlcmd_vni = val;
215 if (do_cmd(s, VXLAN_CMD_SET_VNI, &cmd, sizeof(cmd), 1) < 0)
216 err(1, "VXLAN_CMD_SET_VNI");
220 DECL_CMD_FUNC(setvxlan_local, addr, d)
222 struct ifvxlancmd cmd;
227 bzero(&cmd, sizeof(cmd));
229 if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
230 errx(1, "error in parsing local address string: %s",
231 gai_strerror(error));
235 switch (ai->ai_family) {
238 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
240 if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
241 errx(1, "local address cannot be multicast");
243 cmd.vxlcmd_sa.in4 = *sin;
249 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
251 if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
252 errx(1, "local address cannot be multicast");
254 cmd.vxlcmd_sa.in6 = *sin6;
259 errx(1, "local address %s not supported", addr);
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;
269 params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_ADDR6;
270 params.vxlp_local_sa.in6 = cmd.vxlcmd_sa.in6;
275 if (do_cmd(s, VXLAN_CMD_SET_LOCAL_ADDR, &cmd, sizeof(cmd), 1) < 0)
276 err(1, "VXLAN_CMD_SET_LOCAL_ADDR");
280 DECL_CMD_FUNC(setvxlan_remote, addr, d)
282 struct ifvxlancmd cmd;
287 bzero(&cmd, sizeof(cmd));
289 if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
290 errx(1, "error in parsing remote address string: %s",
291 gai_strerror(error));
295 switch (ai->ai_family) {
298 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
300 if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
301 errx(1, "remote address cannot be multicast");
303 cmd.vxlcmd_sa.in4 = *sin;
309 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
311 if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
312 errx(1, "remote address cannot be multicast");
314 cmd.vxlcmd_sa.in6 = *sin6;
319 errx(1, "remote address %s not supported", addr);
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;
329 params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
330 params.vxlp_remote_sa.in6 = cmd.vxlcmd_sa.in6;
335 if (do_cmd(s, VXLAN_CMD_SET_REMOTE_ADDR, &cmd, sizeof(cmd), 1) < 0)
336 err(1, "VXLAN_CMD_SET_REMOTE_ADDR");
340 DECL_CMD_FUNC(setvxlan_group, addr, d)
342 struct ifvxlancmd cmd;
347 bzero(&cmd, sizeof(cmd));
349 if ((error = getaddrinfo(addr, NULL, NULL, &ai)) != 0)
350 errx(1, "error in parsing group address string: %s",
351 gai_strerror(error));
355 switch (ai->ai_family) {
358 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
360 if (!IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
361 errx(1, "group address must be multicast");
363 cmd.vxlcmd_sa.in4 = *sin;
369 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
371 if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
372 errx(1, "group address must be multicast");
374 cmd.vxlcmd_sa.in6 = *sin6;
379 errx(1, "group address %s not supported", addr);
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;
389 params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
390 params.vxlp_remote_sa.in6 = cmd.vxlcmd_sa.in6;
395 if (do_cmd(s, VXLAN_CMD_SET_REMOTE_ADDR, &cmd, sizeof(cmd), 1) < 0)
396 err(1, "VXLAN_CMD_SET_REMOTE_ADDR");
400 DECL_CMD_FUNC(setvxlan_local_port, arg, d)
402 struct ifvxlancmd cmd;
405 if (get_val(arg, &val) < 0 || val >= UINT16_MAX)
406 errx(1, "invalid local port: %s", arg);
408 if (!vxlan_exists(s)) {
409 params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_PORT;
410 params.vxlp_local_port = val;
414 bzero(&cmd, sizeof(cmd));
415 cmd.vxlcmd_port = val;
417 if (do_cmd(s, VXLAN_CMD_SET_LOCAL_PORT, &cmd, sizeof(cmd), 1) < 0)
418 err(1, "VXLAN_CMD_SET_LOCAL_PORT");
422 DECL_CMD_FUNC(setvxlan_remote_port, arg, d)
424 struct ifvxlancmd cmd;
427 if (get_val(arg, &val) < 0 || val >= UINT16_MAX)
428 errx(1, "invalid remote port: %s", arg);
430 if (!vxlan_exists(s)) {
431 params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_PORT;
432 params.vxlp_remote_port = val;
436 bzero(&cmd, sizeof(cmd));
437 cmd.vxlcmd_port = val;
439 if (do_cmd(s, VXLAN_CMD_SET_REMOTE_PORT, &cmd, sizeof(cmd), 1) < 0)
440 err(1, "VXLAN_CMD_SET_REMOTE_PORT");
444 DECL_CMD_FUNC2(setvxlan_port_range, arg1, arg2)
446 struct ifvxlancmd cmd;
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);
454 errx(1, "invalid port range");
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;
463 bzero(&cmd, sizeof(cmd));
464 cmd.vxlcmd_port_min = min;
465 cmd.vxlcmd_port_max = max;
467 if (do_cmd(s, VXLAN_CMD_SET_PORT_RANGE, &cmd, sizeof(cmd), 1) < 0)
468 err(1, "VXLAN_CMD_SET_PORT_RANGE");
472 DECL_CMD_FUNC(setvxlan_timeout, arg, d)
474 struct ifvxlancmd cmd;
477 if (get_val(arg, &val) < 0 || (val & ~0xFFFFFFFF) != 0)
478 errx(1, "invalid timeout value: %s", arg);
480 if (!vxlan_exists(s)) {
481 params.vxlp_with |= VXLAN_PARAM_WITH_FTABLE_TIMEOUT;
482 params.vxlp_ftable_timeout = val & 0xFFFFFFFF;
486 bzero(&cmd, sizeof(cmd));
487 cmd.vxlcmd_ftable_timeout = val & 0xFFFFFFFF;
489 if (do_cmd(s, VXLAN_CMD_SET_FTABLE_TIMEOUT, &cmd, sizeof(cmd), 1) < 0)
490 err(1, "VXLAN_CMD_SET_FTABLE_TIMEOUT");
494 DECL_CMD_FUNC(setvxlan_maxaddr, arg, d)
496 struct ifvxlancmd cmd;
499 if (get_val(arg, &val) < 0 || (val & ~0xFFFFFFFF) != 0)
500 errx(1, "invalid maxaddr value: %s", arg);
502 if (!vxlan_exists(s)) {
503 params.vxlp_with |= VXLAN_PARAM_WITH_FTABLE_MAX;
504 params.vxlp_ftable_max = val & 0xFFFFFFFF;
508 bzero(&cmd, sizeof(cmd));
509 cmd.vxlcmd_ftable_max = val & 0xFFFFFFFF;
511 if (do_cmd(s, VXLAN_CMD_SET_FTABLE_MAX, &cmd, sizeof(cmd), 1) < 0)
512 err(1, "VXLAN_CMD_SET_FTABLE_MAX");
516 DECL_CMD_FUNC(setvxlan_dev, arg, d)
518 struct ifvxlancmd cmd;
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));
527 bzero(&cmd, sizeof(cmd));
528 strlcpy(cmd.vxlcmd_ifname, arg, sizeof(cmd.vxlcmd_ifname));
530 if (do_cmd(s, VXLAN_CMD_SET_MULTICAST_IF, &cmd, sizeof(cmd), 1) < 0)
531 err(1, "VXLAN_CMD_SET_MULTICAST_IF");
535 DECL_CMD_FUNC(setvxlan_ttl, arg, d)
537 struct ifvxlancmd cmd;
540 if (get_val(arg, &val) < 0 || val > 256)
541 errx(1, "invalid TTL value: %s", arg);
543 if (!vxlan_exists(s)) {
544 params.vxlp_with |= VXLAN_PARAM_WITH_TTL;
545 params.vxlp_ttl = val;
549 bzero(&cmd, sizeof(cmd));
550 cmd.vxlcmd_ttl = val;
552 if (do_cmd(s, VXLAN_CMD_SET_TTL, &cmd, sizeof(cmd), 1) < 0)
553 err(1, "VXLAN_CMD_SET_TTL");
557 DECL_CMD_FUNC(setvxlan_learn, arg, d)
559 struct ifvxlancmd cmd;
561 if (!vxlan_exists(s)) {
562 params.vxlp_with |= VXLAN_PARAM_WITH_LEARN;
563 params.vxlp_learn = d;
567 bzero(&cmd, sizeof(cmd));
569 cmd.vxlcmd_flags |= VXLAN_CMD_FLAG_LEARN;
571 if (do_cmd(s, VXLAN_CMD_SET_LEARN, &cmd, sizeof(cmd), 1) < 0)
572 err(1, "VXLAN_CMD_SET_LEARN");
576 setvxlan_flush(const char *val, int d, int s, const struct afswtch *afp)
578 struct ifvxlancmd cmd;
580 bzero(&cmd, sizeof(cmd));
582 cmd.vxlcmd_flags |= VXLAN_CMD_FLAG_FLUSH_ALL;
584 if (do_cmd(s, VXLAN_CMD_FLUSH, &cmd, sizeof(cmd), 1) < 0)
585 err(1, "VXLAN_CMD_FLUSH");
588 static struct cmd vxlan_cmds[] = {
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),
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),
620 DEF_CMD("vxlanflush", 0, setvxlan_flush),
621 DEF_CMD("vxlanflushall", 1, setvxlan_flush),
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),
629 static struct afswtch af_vxlan = {
630 .af_name = "af_vxlan",
632 .af_other_status = vxlan_status,
635 static __constructor void
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("vxlan", vxlan_create);