xref: /freebsd/sbin/ifconfig/ifbridge.c (revision 5ffd83dbcc34f10e07f6d3e968ae6365869615f4)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright 2001 Wasabi Systems, Inc.
5  * All rights reserved.
6  *
7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *	This product includes software developed for the NetBSD Project by
20  *	Wasabi Systems, Inc.
21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22  *    or promote products derived from this software without specific prior
23  *    written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35  * POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #ifndef lint
39 static const char rcsid[] =
40   "$FreeBSD$";
41 #endif /* not lint */
42 
43 #include <sys/param.h>
44 #include <sys/ioctl.h>
45 #include <sys/socket.h>
46 #include <sys/sockio.h>
47 
48 #include <stdlib.h>
49 #include <unistd.h>
50 
51 #include <net/ethernet.h>
52 #include <net/if.h>
53 #include <net/if_bridgevar.h>
54 #include <net/route.h>
55 
56 #include <ctype.h>
57 #include <stdio.h>
58 #include <string.h>
59 #include <stdlib.h>
60 #include <unistd.h>
61 #include <err.h>
62 #include <errno.h>
63 
64 #include "ifconfig.h"
65 
66 static const char *stpstates[] = { STP_STATES };
67 static const char *stpproto[] = { STP_PROTOS };
68 static const char *stproles[] = { STP_ROLES };
69 
70 static int
71 get_val(const char *cp, u_long *valp)
72 {
73 	char *endptr;
74 	u_long val;
75 
76 	errno = 0;
77 	val = strtoul(cp, &endptr, 0);
78 	if (cp[0] == '\0' || endptr[0] != '\0' || errno == ERANGE)
79 		return (-1);
80 
81 	*valp = val;
82 	return (0);
83 }
84 
85 static int
86 do_cmd(int sock, u_long op, void *arg, size_t argsize, int set)
87 {
88 	struct ifdrv ifd;
89 
90 	memset(&ifd, 0, sizeof(ifd));
91 
92 	strlcpy(ifd.ifd_name, ifr.ifr_name, sizeof(ifd.ifd_name));
93 	ifd.ifd_cmd = op;
94 	ifd.ifd_len = argsize;
95 	ifd.ifd_data = arg;
96 
97 	return (ioctl(sock, set ? SIOCSDRVSPEC : SIOCGDRVSPEC, &ifd));
98 }
99 
100 static void
101 do_bridgeflag(int sock, const char *ifs, int flag, int set)
102 {
103 	struct ifbreq req;
104 
105 	strlcpy(req.ifbr_ifsname, ifs, sizeof(req.ifbr_ifsname));
106 
107 	if (do_cmd(sock, BRDGGIFFLGS, &req, sizeof(req), 0) < 0)
108 		err(1, "unable to get bridge flags");
109 
110 	if (set)
111 		req.ifbr_ifsflags |= flag;
112 	else
113 		req.ifbr_ifsflags &= ~flag;
114 
115 	if (do_cmd(sock, BRDGSIFFLGS, &req, sizeof(req), 1) < 0)
116 		err(1, "unable to set bridge flags");
117 }
118 
119 static void
120 bridge_interfaces(int s, const char *prefix)
121 {
122 	struct ifbifconf bifc;
123 	struct ifbreq *req;
124 	char *inbuf = NULL, *ninbuf;
125 	char *p, *pad;
126 	int i, len = 8192;
127 
128 	pad = strdup(prefix);
129 	if (pad == NULL)
130 		err(1, "strdup");
131 	/* replace the prefix with whitespace */
132 	for (p = pad; *p != '\0'; p++) {
133 		if(isprint(*p))
134 			*p = ' ';
135 	}
136 
137 	for (;;) {
138 		ninbuf = realloc(inbuf, len);
139 		if (ninbuf == NULL)
140 			err(1, "unable to allocate interface buffer");
141 		bifc.ifbic_len = len;
142 		bifc.ifbic_buf = inbuf = ninbuf;
143 		if (do_cmd(s, BRDGGIFS, &bifc, sizeof(bifc), 0) < 0)
144 			err(1, "unable to get interface list");
145 		if ((bifc.ifbic_len + sizeof(*req)) < len)
146 			break;
147 		len *= 2;
148 	}
149 
150 	for (i = 0; i < bifc.ifbic_len / sizeof(*req); i++) {
151 		req = bifc.ifbic_req + i;
152 		printf("%s%s ", prefix, req->ifbr_ifsname);
153 		printb("flags", req->ifbr_ifsflags, IFBIFBITS);
154 		printf("\n");
155 
156 		printf("%s", pad);
157 		printf("ifmaxaddr %u", req->ifbr_addrmax);
158 		printf(" port %u priority %u", req->ifbr_portno,
159 		    req->ifbr_priority);
160 		printf(" path cost %u", req->ifbr_path_cost);
161 
162 		if (req->ifbr_ifsflags & IFBIF_STP) {
163 			if (req->ifbr_proto < nitems(stpproto))
164 				printf(" proto %s", stpproto[req->ifbr_proto]);
165 			else
166 				printf(" <unknown proto %d>",
167 				    req->ifbr_proto);
168 
169 			printf("\n%s", pad);
170 			if (req->ifbr_role < nitems(stproles))
171 				printf("role %s", stproles[req->ifbr_role]);
172 			else
173 				printf("<unknown role %d>",
174 				    req->ifbr_role);
175 			if (req->ifbr_state < nitems(stpstates))
176 				printf(" state %s", stpstates[req->ifbr_state]);
177 			else
178 				printf(" <unknown state %d>",
179 				    req->ifbr_state);
180 		}
181 		printf("\n");
182 	}
183 	free(pad);
184 	free(inbuf);
185 }
186 
187 static void
188 bridge_addresses(int s, const char *prefix)
189 {
190 	struct ifbaconf ifbac;
191 	struct ifbareq *ifba;
192 	char *inbuf = NULL, *ninbuf;
193 	int i, len = 8192;
194 	struct ether_addr ea;
195 
196 	for (;;) {
197 		ninbuf = realloc(inbuf, len);
198 		if (ninbuf == NULL)
199 			err(1, "unable to allocate address buffer");
200 		ifbac.ifbac_len = len;
201 		ifbac.ifbac_buf = inbuf = ninbuf;
202 		if (do_cmd(s, BRDGRTS, &ifbac, sizeof(ifbac), 0) < 0)
203 			err(1, "unable to get address cache");
204 		if ((ifbac.ifbac_len + sizeof(*ifba)) < len)
205 			break;
206 		len *= 2;
207 	}
208 
209 	for (i = 0; i < ifbac.ifbac_len / sizeof(*ifba); i++) {
210 		ifba = ifbac.ifbac_req + i;
211 		memcpy(ea.octet, ifba->ifba_dst,
212 		    sizeof(ea.octet));
213 		printf("%s%s Vlan%d %s %lu ", prefix, ether_ntoa(&ea),
214 		    ifba->ifba_vlan, ifba->ifba_ifsname, ifba->ifba_expire);
215 		printb("flags", ifba->ifba_flags, IFBAFBITS);
216 		printf("\n");
217 	}
218 
219 	free(inbuf);
220 }
221 
222 static void
223 bridge_status(int s)
224 {
225 	struct ifbropreq ifbp;
226 	struct ifbrparam param;
227 	u_int16_t pri;
228 	u_int8_t ht, fd, ma, hc, pro;
229 	u_int8_t lladdr[ETHER_ADDR_LEN];
230 	u_int16_t bprio;
231 	u_int32_t csize, ctime;
232 
233 	if (do_cmd(s, BRDGGCACHE, &param, sizeof(param), 0) < 0)
234 		return;
235 	csize = param.ifbrp_csize;
236 	if (do_cmd(s, BRDGGTO, &param, sizeof(param), 0) < 0)
237 		return;
238 	ctime = param.ifbrp_ctime;
239 	if (do_cmd(s, BRDGPARAM, &ifbp, sizeof(ifbp), 0) < 0)
240 		return;
241 	pri = ifbp.ifbop_priority;
242 	pro = ifbp.ifbop_protocol;
243 	ht = ifbp.ifbop_hellotime;
244 	fd = ifbp.ifbop_fwddelay;
245 	hc = ifbp.ifbop_holdcount;
246 	ma = ifbp.ifbop_maxage;
247 
248 	PV2ID(ifbp.ifbop_bridgeid, bprio, lladdr);
249 	printf("\tid %s priority %u hellotime %u fwddelay %u\n",
250 	    ether_ntoa((struct ether_addr *)lladdr), pri, ht, fd);
251 	printf("\tmaxage %u holdcnt %u proto %s maxaddr %u timeout %u\n",
252 	    ma, hc, stpproto[pro], csize, ctime);
253 
254 	PV2ID(ifbp.ifbop_designated_root, bprio, lladdr);
255 	printf("\troot id %s priority %d ifcost %u port %u\n",
256 	    ether_ntoa((struct ether_addr *)lladdr), bprio,
257 	    ifbp.ifbop_root_path_cost, ifbp.ifbop_root_port & 0xfff);
258 
259 	bridge_interfaces(s, "\tmember: ");
260 
261 	return;
262 
263 }
264 
265 static void
266 setbridge_add(const char *val, int d, int s, const struct afswtch *afp)
267 {
268 	struct ifbreq req;
269 
270 	memset(&req, 0, sizeof(req));
271 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
272 	if (do_cmd(s, BRDGADD, &req, sizeof(req), 1) < 0)
273 		err(1, "BRDGADD %s",  val);
274 }
275 
276 static void
277 setbridge_delete(const char *val, int d, int s, const struct afswtch *afp)
278 {
279 	struct ifbreq req;
280 
281 	memset(&req, 0, sizeof(req));
282 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
283 	if (do_cmd(s, BRDGDEL, &req, sizeof(req), 1) < 0)
284 		err(1, "BRDGDEL %s",  val);
285 }
286 
287 static void
288 setbridge_discover(const char *val, int d, int s, const struct afswtch *afp)
289 {
290 
291 	do_bridgeflag(s, val, IFBIF_DISCOVER, 1);
292 }
293 
294 static void
295 unsetbridge_discover(const char *val, int d, int s, const struct afswtch *afp)
296 {
297 
298 	do_bridgeflag(s, val, IFBIF_DISCOVER, 0);
299 }
300 
301 static void
302 setbridge_learn(const char *val, int d, int s, const struct afswtch *afp)
303 {
304 
305 	do_bridgeflag(s, val, IFBIF_LEARNING,  1);
306 }
307 
308 static void
309 unsetbridge_learn(const char *val, int d, int s, const struct afswtch *afp)
310 {
311 
312 	do_bridgeflag(s, val, IFBIF_LEARNING,  0);
313 }
314 
315 static void
316 setbridge_sticky(const char *val, int d, int s, const struct afswtch *afp)
317 {
318 
319 	do_bridgeflag(s, val, IFBIF_STICKY,  1);
320 }
321 
322 static void
323 unsetbridge_sticky(const char *val, int d, int s, const struct afswtch *afp)
324 {
325 
326 	do_bridgeflag(s, val, IFBIF_STICKY,  0);
327 }
328 
329 static void
330 setbridge_span(const char *val, int d, int s, const struct afswtch *afp)
331 {
332 	struct ifbreq req;
333 
334 	memset(&req, 0, sizeof(req));
335 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
336 	if (do_cmd(s, BRDGADDS, &req, sizeof(req), 1) < 0)
337 		err(1, "BRDGADDS %s",  val);
338 }
339 
340 static void
341 unsetbridge_span(const char *val, int d, int s, const struct afswtch *afp)
342 {
343 	struct ifbreq req;
344 
345 	memset(&req, 0, sizeof(req));
346 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
347 	if (do_cmd(s, BRDGDELS, &req, sizeof(req), 1) < 0)
348 		err(1, "BRDGDELS %s",  val);
349 }
350 
351 static void
352 setbridge_stp(const char *val, int d, int s, const struct afswtch *afp)
353 {
354 
355 	do_bridgeflag(s, val, IFBIF_STP, 1);
356 }
357 
358 static void
359 unsetbridge_stp(const char *val, int d, int s, const struct afswtch *afp)
360 {
361 
362 	do_bridgeflag(s, val, IFBIF_STP, 0);
363 }
364 
365 static void
366 setbridge_edge(const char *val, int d, int s, const struct afswtch *afp)
367 {
368 	do_bridgeflag(s, val, IFBIF_BSTP_EDGE, 1);
369 }
370 
371 static void
372 unsetbridge_edge(const char *val, int d, int s, const struct afswtch *afp)
373 {
374 	do_bridgeflag(s, val, IFBIF_BSTP_EDGE, 0);
375 }
376 
377 static void
378 setbridge_autoedge(const char *val, int d, int s, const struct afswtch *afp)
379 {
380 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOEDGE, 1);
381 }
382 
383 static void
384 unsetbridge_autoedge(const char *val, int d, int s, const struct afswtch *afp)
385 {
386 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOEDGE, 0);
387 }
388 
389 static void
390 setbridge_ptp(const char *val, int d, int s, const struct afswtch *afp)
391 {
392 	do_bridgeflag(s, val, IFBIF_BSTP_PTP, 1);
393 }
394 
395 static void
396 unsetbridge_ptp(const char *val, int d, int s, const struct afswtch *afp)
397 {
398 	do_bridgeflag(s, val, IFBIF_BSTP_PTP, 0);
399 }
400 
401 static void
402 setbridge_autoptp(const char *val, int d, int s, const struct afswtch *afp)
403 {
404 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOPTP, 1);
405 }
406 
407 static void
408 unsetbridge_autoptp(const char *val, int d, int s, const struct afswtch *afp)
409 {
410 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOPTP, 0);
411 }
412 
413 static void
414 setbridge_flush(const char *val, int d, int s, const struct afswtch *afp)
415 {
416 	struct ifbreq req;
417 
418 	memset(&req, 0, sizeof(req));
419 	req.ifbr_ifsflags = IFBF_FLUSHDYN;
420 	if (do_cmd(s, BRDGFLUSH, &req, sizeof(req), 1) < 0)
421 		err(1, "BRDGFLUSH");
422 }
423 
424 static void
425 setbridge_flushall(const char *val, int d, int s, const struct afswtch *afp)
426 {
427 	struct ifbreq req;
428 
429 	memset(&req, 0, sizeof(req));
430 	req.ifbr_ifsflags = IFBF_FLUSHALL;
431 	if (do_cmd(s, BRDGFLUSH, &req, sizeof(req), 1) < 0)
432 		err(1, "BRDGFLUSH");
433 }
434 
435 static void
436 setbridge_static(const char *val, const char *mac, int s,
437     const struct afswtch *afp)
438 {
439 	struct ifbareq req;
440 	struct ether_addr *ea;
441 
442 	memset(&req, 0, sizeof(req));
443 	strlcpy(req.ifba_ifsname, val, sizeof(req.ifba_ifsname));
444 
445 	ea = ether_aton(mac);
446 	if (ea == NULL)
447 		errx(1, "%s: invalid address: %s", val, mac);
448 
449 	memcpy(req.ifba_dst, ea->octet, sizeof(req.ifba_dst));
450 	req.ifba_flags = IFBAF_STATIC;
451 	req.ifba_vlan = 1; /* XXX allow user to specify */
452 
453 	if (do_cmd(s, BRDGSADDR, &req, sizeof(req), 1) < 0)
454 		err(1, "BRDGSADDR %s",  val);
455 }
456 
457 static void
458 setbridge_deladdr(const char *val, int d, int s, const struct afswtch *afp)
459 {
460 	struct ifbareq req;
461 	struct ether_addr *ea;
462 
463 	memset(&req, 0, sizeof(req));
464 
465 	ea = ether_aton(val);
466 	if (ea == NULL)
467 		errx(1, "invalid address: %s",  val);
468 
469 	memcpy(req.ifba_dst, ea->octet, sizeof(req.ifba_dst));
470 
471 	if (do_cmd(s, BRDGDADDR, &req, sizeof(req), 1) < 0)
472 		err(1, "BRDGDADDR %s",  val);
473 }
474 
475 static void
476 setbridge_addr(const char *val, int d, int s, const struct afswtch *afp)
477 {
478 
479 	bridge_addresses(s, "");
480 }
481 
482 static void
483 setbridge_maxaddr(const char *arg, int d, int s, const struct afswtch *afp)
484 {
485 	struct ifbrparam param;
486 	u_long val;
487 
488 	if (get_val(arg, &val) < 0 || (val & ~0xffffffff) != 0)
489 		errx(1, "invalid value: %s",  arg);
490 
491 	param.ifbrp_csize = val & 0xffffffff;
492 
493 	if (do_cmd(s, BRDGSCACHE, &param, sizeof(param), 1) < 0)
494 		err(1, "BRDGSCACHE %s",  arg);
495 }
496 
497 static void
498 setbridge_hellotime(const char *arg, int d, int s, const struct afswtch *afp)
499 {
500 	struct ifbrparam param;
501 	u_long val;
502 
503 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
504 		errx(1, "invalid value: %s",  arg);
505 
506 	param.ifbrp_hellotime = val & 0xff;
507 
508 	if (do_cmd(s, BRDGSHT, &param, sizeof(param), 1) < 0)
509 		err(1, "BRDGSHT %s",  arg);
510 }
511 
512 static void
513 setbridge_fwddelay(const char *arg, int d, int s, const struct afswtch *afp)
514 {
515 	struct ifbrparam param;
516 	u_long val;
517 
518 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
519 		errx(1, "invalid value: %s",  arg);
520 
521 	param.ifbrp_fwddelay = val & 0xff;
522 
523 	if (do_cmd(s, BRDGSFD, &param, sizeof(param), 1) < 0)
524 		err(1, "BRDGSFD %s",  arg);
525 }
526 
527 static void
528 setbridge_maxage(const char *arg, int d, int s, const struct afswtch *afp)
529 {
530 	struct ifbrparam param;
531 	u_long val;
532 
533 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
534 		errx(1, "invalid value: %s",  arg);
535 
536 	param.ifbrp_maxage = val & 0xff;
537 
538 	if (do_cmd(s, BRDGSMA, &param, sizeof(param), 1) < 0)
539 		err(1, "BRDGSMA %s",  arg);
540 }
541 
542 static void
543 setbridge_priority(const char *arg, int d, int s, const struct afswtch *afp)
544 {
545 	struct ifbrparam param;
546 	u_long val;
547 
548 	if (get_val(arg, &val) < 0 || (val & ~0xffff) != 0)
549 		errx(1, "invalid value: %s",  arg);
550 
551 	param.ifbrp_prio = val & 0xffff;
552 
553 	if (do_cmd(s, BRDGSPRI, &param, sizeof(param), 1) < 0)
554 		err(1, "BRDGSPRI %s",  arg);
555 }
556 
557 static void
558 setbridge_protocol(const char *arg, int d, int s, const struct afswtch *afp)
559 {
560 	struct ifbrparam param;
561 
562 	if (strcasecmp(arg, "stp") == 0) {
563 		param.ifbrp_proto = 0;
564 	} else if (strcasecmp(arg, "rstp") == 0) {
565 		param.ifbrp_proto = 2;
566 	} else {
567 		errx(1, "unknown stp protocol");
568 	}
569 
570 	if (do_cmd(s, BRDGSPROTO, &param, sizeof(param), 1) < 0)
571 		err(1, "BRDGSPROTO %s",  arg);
572 }
573 
574 static void
575 setbridge_holdcount(const char *arg, int d, int s, const struct afswtch *afp)
576 {
577 	struct ifbrparam param;
578 	u_long val;
579 
580 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
581 		errx(1, "invalid value: %s",  arg);
582 
583 	param.ifbrp_txhc = val & 0xff;
584 
585 	if (do_cmd(s, BRDGSTXHC, &param, sizeof(param), 1) < 0)
586 		err(1, "BRDGSTXHC %s",  arg);
587 }
588 
589 static void
590 setbridge_ifpriority(const char *ifn, const char *pri, int s,
591     const struct afswtch *afp)
592 {
593 	struct ifbreq req;
594 	u_long val;
595 
596 	memset(&req, 0, sizeof(req));
597 
598 	if (get_val(pri, &val) < 0 || (val & ~0xff) != 0)
599 		errx(1, "invalid value: %s",  pri);
600 
601 	strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
602 	req.ifbr_priority = val & 0xff;
603 
604 	if (do_cmd(s, BRDGSIFPRIO, &req, sizeof(req), 1) < 0)
605 		err(1, "BRDGSIFPRIO %s",  pri);
606 }
607 
608 static void
609 setbridge_ifpathcost(const char *ifn, const char *cost, int s,
610     const struct afswtch *afp)
611 {
612 	struct ifbreq req;
613 	u_long val;
614 
615 	memset(&req, 0, sizeof(req));
616 
617 	if (get_val(cost, &val) < 0)
618 		errx(1, "invalid value: %s",  cost);
619 
620 	strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
621 	req.ifbr_path_cost = val;
622 
623 	if (do_cmd(s, BRDGSIFCOST, &req, sizeof(req), 1) < 0)
624 		err(1, "BRDGSIFCOST %s",  cost);
625 }
626 
627 static void
628 setbridge_ifmaxaddr(const char *ifn, const char *arg, int s,
629     const struct afswtch *afp)
630 {
631 	struct ifbreq req;
632 	u_long val;
633 
634 	memset(&req, 0, sizeof(req));
635 
636 	if (get_val(arg, &val) < 0 || (val & ~0xffffffff) != 0)
637 		errx(1, "invalid value: %s",  arg);
638 
639 	strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
640 	req.ifbr_addrmax = val & 0xffffffff;
641 
642 	if (do_cmd(s, BRDGSIFAMAX, &req, sizeof(req), 1) < 0)
643 		err(1, "BRDGSIFAMAX %s",  arg);
644 }
645 
646 static void
647 setbridge_timeout(const char *arg, int d, int s, const struct afswtch *afp)
648 {
649 	struct ifbrparam param;
650 	u_long val;
651 
652 	if (get_val(arg, &val) < 0 || (val & ~0xffffffff) != 0)
653 		errx(1, "invalid value: %s",  arg);
654 
655 	param.ifbrp_ctime = val & 0xffffffff;
656 
657 	if (do_cmd(s, BRDGSTO, &param, sizeof(param), 1) < 0)
658 		err(1, "BRDGSTO %s",  arg);
659 }
660 
661 static void
662 setbridge_private(const char *val, int d, int s, const struct afswtch *afp)
663 {
664 
665 	do_bridgeflag(s, val, IFBIF_PRIVATE, 1);
666 }
667 
668 static void
669 unsetbridge_private(const char *val, int d, int s, const struct afswtch *afp)
670 {
671 
672 	do_bridgeflag(s, val, IFBIF_PRIVATE, 0);
673 }
674 
675 static struct cmd bridge_cmds[] = {
676 	DEF_CMD_ARG("addm",		setbridge_add),
677 	DEF_CMD_ARG("deletem",		setbridge_delete),
678 	DEF_CMD_ARG("discover",		setbridge_discover),
679 	DEF_CMD_ARG("-discover",	unsetbridge_discover),
680 	DEF_CMD_ARG("learn",		setbridge_learn),
681 	DEF_CMD_ARG("-learn",		unsetbridge_learn),
682 	DEF_CMD_ARG("sticky",		setbridge_sticky),
683 	DEF_CMD_ARG("-sticky",		unsetbridge_sticky),
684 	DEF_CMD_ARG("span",		setbridge_span),
685 	DEF_CMD_ARG("-span",		unsetbridge_span),
686 	DEF_CMD_ARG("stp",		setbridge_stp),
687 	DEF_CMD_ARG("-stp",		unsetbridge_stp),
688 	DEF_CMD_ARG("edge",		setbridge_edge),
689 	DEF_CMD_ARG("-edge",		unsetbridge_edge),
690 	DEF_CMD_ARG("autoedge",		setbridge_autoedge),
691 	DEF_CMD_ARG("-autoedge",	unsetbridge_autoedge),
692 	DEF_CMD_ARG("ptp",		setbridge_ptp),
693 	DEF_CMD_ARG("-ptp",		unsetbridge_ptp),
694 	DEF_CMD_ARG("autoptp",		setbridge_autoptp),
695 	DEF_CMD_ARG("-autoptp",		unsetbridge_autoptp),
696 	DEF_CMD("flush", 0,		setbridge_flush),
697 	DEF_CMD("flushall", 0,		setbridge_flushall),
698 	DEF_CMD_ARG2("static",		setbridge_static),
699 	DEF_CMD_ARG("deladdr",		setbridge_deladdr),
700 	DEF_CMD("addr",	 1,		setbridge_addr),
701 	DEF_CMD_ARG("maxaddr",		setbridge_maxaddr),
702 	DEF_CMD_ARG("hellotime",	setbridge_hellotime),
703 	DEF_CMD_ARG("fwddelay",		setbridge_fwddelay),
704 	DEF_CMD_ARG("maxage",		setbridge_maxage),
705 	DEF_CMD_ARG("priority",		setbridge_priority),
706 	DEF_CMD_ARG("proto",		setbridge_protocol),
707 	DEF_CMD_ARG("holdcnt",		setbridge_holdcount),
708 	DEF_CMD_ARG2("ifpriority",	setbridge_ifpriority),
709 	DEF_CMD_ARG2("ifpathcost",	setbridge_ifpathcost),
710 	DEF_CMD_ARG2("ifmaxaddr",	setbridge_ifmaxaddr),
711 	DEF_CMD_ARG("timeout",		setbridge_timeout),
712 	DEF_CMD_ARG("private",		setbridge_private),
713 	DEF_CMD_ARG("-private",		unsetbridge_private),
714 };
715 static struct afswtch af_bridge = {
716 	.af_name	= "af_bridge",
717 	.af_af		= AF_UNSPEC,
718 	.af_other_status = bridge_status,
719 };
720 
721 static __constructor void
722 bridge_ctor(void)
723 {
724 	int i;
725 
726 	for (i = 0; i < nitems(bridge_cmds);  i++)
727 		cmd_register(&bridge_cmds[i]);
728 	af_register(&af_bridge);
729 }
730