xref: /freebsd/sbin/ifconfig/ifbridge.c (revision b28624fde638caadd4a89f50c9b7e7da0f98c4d2)
1 /*-
2  * Copyright 2001 Wasabi Systems, Inc.
3  * All rights reserved.
4  *
5  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed for the NetBSD Project by
18  *	Wasabi Systems, Inc.
19  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
20  *    or promote products derived from this software without specific prior
21  *    written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33  * POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 #ifndef lint
37 static const char rcsid[] =
38   "$FreeBSD$";
39 #endif /* not lint */
40 
41 #include <sys/param.h>
42 #include <sys/ioctl.h>
43 #include <sys/socket.h>
44 #include <sys/sockio.h>
45 
46 #include <stdlib.h>
47 #include <unistd.h>
48 
49 #include <net/ethernet.h>
50 #include <net/if.h>
51 #include <net/if_bridgevar.h>
52 #include <net/route.h>
53 
54 #include <ctype.h>
55 #include <stdio.h>
56 #include <string.h>
57 #include <stdlib.h>
58 #include <unistd.h>
59 #include <err.h>
60 #include <errno.h>
61 
62 #include "ifconfig.h"
63 
64 #define PV2ID(pv, epri, eaddr)  do {		\
65 		epri     = pv >> 48;		\
66 		eaddr[0] = pv >> 40;		\
67 		eaddr[1] = pv >> 32;		\
68 		eaddr[2] = pv >> 24;		\
69 		eaddr[3] = pv >> 16;		\
70 		eaddr[4] = pv >> 8;		\
71 		eaddr[5] = pv >> 0;		\
72 } while (0)
73 
74 static const char *stpstates[] = {
75 	"disabled",
76 	"listening",
77 	"learning",
78 	"forwarding",
79 	"blocking",
80 	"discarding"
81 };
82 static const char *stpproto[] = {
83 	"stp",
84 	"-",
85 	"rstp"
86 };
87 static const char *stproles[] = {
88 	"disabled",
89 	"root",
90 	"designated",
91 	"alternate",
92 	"backup"
93 };
94 
95 static int
96 get_val(const char *cp, u_long *valp)
97 {
98 	char *endptr;
99 	u_long val;
100 
101 	errno = 0;
102 	val = strtoul(cp, &endptr, 0);
103 	if (cp[0] == '\0' || endptr[0] != '\0' || errno == ERANGE)
104 		return (-1);
105 
106 	*valp = val;
107 	return (0);
108 }
109 
110 static int
111 do_cmd(int sock, u_long op, void *arg, size_t argsize, int set)
112 {
113 	struct ifdrv ifd;
114 
115 	memset(&ifd, 0, sizeof(ifd));
116 
117 	strlcpy(ifd.ifd_name, ifr.ifr_name, sizeof(ifd.ifd_name));
118 	ifd.ifd_cmd = op;
119 	ifd.ifd_len = argsize;
120 	ifd.ifd_data = arg;
121 
122 	return (ioctl(sock, set ? SIOCSDRVSPEC : SIOCGDRVSPEC, &ifd));
123 }
124 
125 static void
126 do_bridgeflag(int sock, const char *ifs, int flag, int set)
127 {
128 	struct ifbreq req;
129 
130 	strlcpy(req.ifbr_ifsname, ifs, sizeof(req.ifbr_ifsname));
131 
132 	if (do_cmd(sock, BRDGGIFFLGS, &req, sizeof(req), 0) < 0)
133 		err(1, "unable to get bridge flags");
134 
135 	if (set)
136 		req.ifbr_ifsflags |= flag;
137 	else
138 		req.ifbr_ifsflags &= ~flag;
139 
140 	if (do_cmd(sock, BRDGSIFFLGS, &req, sizeof(req), 1) < 0)
141 		err(1, "unable to set bridge flags");
142 }
143 
144 static void
145 bridge_interfaces(int s, const char *prefix)
146 {
147 	struct ifbifconf bifc;
148 	struct ifbreq *req;
149 	char *inbuf = NULL, *ninbuf;
150 	char *p, *pad;
151 	int i, len = 8192;
152 
153 	pad = strdup(prefix);
154 	if (pad == NULL)
155 		err(1, "strdup");
156 	/* replace the prefix with whitespace */
157 	for (p = pad; *p != '\0'; p++) {
158 		if(isprint(*p))
159 			*p = ' ';
160 	}
161 
162 	for (;;) {
163 		ninbuf = realloc(inbuf, len);
164 		if (ninbuf == NULL)
165 			err(1, "unable to allocate interface buffer");
166 		bifc.ifbic_len = len;
167 		bifc.ifbic_buf = inbuf = ninbuf;
168 		if (do_cmd(s, BRDGGIFS, &bifc, sizeof(bifc), 0) < 0)
169 			err(1, "unable to get interface list");
170 		if ((bifc.ifbic_len + sizeof(*req)) < len)
171 			break;
172 		len *= 2;
173 	}
174 
175 	for (i = 0; i < bifc.ifbic_len / sizeof(*req); i++) {
176 		req = bifc.ifbic_req + i;
177 		printf("%s%s ", prefix, req->ifbr_ifsname);
178 		printb("flags", req->ifbr_ifsflags, IFBIFBITS);
179 		printf("\n");
180 
181 		if (req->ifbr_ifsflags & IFBIF_STP) {
182 			printf("%s", pad);
183 			printf("port %u priority %u",
184 			    req->ifbr_portno, req->ifbr_priority);
185 			printf(" path cost %u", req->ifbr_path_cost);
186 			if (req->ifbr_proto <
187 			    sizeof(stpproto) / sizeof(stpproto[0]))
188 				printf(" proto %s", stpproto[req->ifbr_proto]);
189 			else
190 				printf(" <unknown proto %d>",
191 				    req->ifbr_proto);
192 
193 			printf("\n%s", pad);
194 			if (req->ifbr_role <
195 			    sizeof(stproles) / sizeof(stproles[0]))
196 				printf("role %s", stproles[req->ifbr_role]);
197 			else
198 				printf("<unknown role %d>",
199 				    req->ifbr_role);
200 			if (req->ifbr_state <
201 			    sizeof(stpstates) / sizeof(stpstates[0]))
202 				printf(" state %s", stpstates[req->ifbr_state]);
203 			else
204 				printf(" <unknown state %d>",
205 				    req->ifbr_state);
206 			printf("\n");
207 		}
208 	}
209 
210 	free(inbuf);
211 }
212 
213 static void
214 bridge_addresses(int s, const char *prefix)
215 {
216 	struct ifbaconf ifbac;
217 	struct ifbareq *ifba;
218 	char *inbuf = NULL, *ninbuf;
219 	int i, len = 8192;
220 	struct ether_addr ea;
221 
222 	for (;;) {
223 		ninbuf = realloc(inbuf, len);
224 		if (ninbuf == NULL)
225 			err(1, "unable to allocate address buffer");
226 		ifbac.ifbac_len = len;
227 		ifbac.ifbac_buf = inbuf = ninbuf;
228 		if (do_cmd(s, BRDGRTS, &ifbac, sizeof(ifbac), 0) < 0)
229 			err(1, "unable to get address cache");
230 		if ((ifbac.ifbac_len + sizeof(*ifba)) < len)
231 			break;
232 		len *= 2;
233 	}
234 
235 	for (i = 0; i < ifbac.ifbac_len / sizeof(*ifba); i++) {
236 		ifba = ifbac.ifbac_req + i;
237 		memcpy(ea.octet, ifba->ifba_dst,
238 		    sizeof(ea.octet));
239 		printf("%s%s Vlan%d %s %lu ", prefix, ether_ntoa(&ea),
240 		    ifba->ifba_vlan, ifba->ifba_ifsname, ifba->ifba_expire);
241 		printb("flags", ifba->ifba_flags, IFBAFBITS);
242 		printf("\n");
243 	}
244 
245 	free(inbuf);
246 }
247 
248 static void
249 bridge_status(int s)
250 {
251 	struct ifbropreq ifbp;
252 	struct ifbrparam param;
253 	u_int16_t pri;
254 	u_int8_t ht, fd, ma, hc, pro;
255 	u_int8_t lladdr[ETHER_ADDR_LEN];
256 	u_int16_t bprio;
257 	u_int32_t csize, ctime;
258 
259 	if (do_cmd(s, BRDGGCACHE, &param, sizeof(param), 0) < 0)
260 		return;
261 	csize = param.ifbrp_csize;
262 	if (do_cmd(s, BRDGGTO, &param, sizeof(param), 0) < 0)
263 		return;
264 	ctime = param.ifbrp_ctime;
265 	if (do_cmd(s, BRDGPARAM, &ifbp, sizeof(ifbp), 0) < 0)
266 		return;
267 	pri = ifbp.ifbop_priority;
268 	pro = ifbp.ifbop_protocol;
269 	ht = ifbp.ifbop_hellotime;
270 	fd = ifbp.ifbop_fwddelay;
271 	hc = ifbp.ifbop_holdcount;
272 	ma = ifbp.ifbop_maxage;
273 
274 	PV2ID(ifbp.ifbop_bridgeid, bprio, lladdr);
275 	printf("\tid %s priority %u hellotime %u fwddelay %u\n",
276 	    ether_ntoa((struct ether_addr *)lladdr), pri, ht, fd);
277 	printf("\tmaxage %u holdcnt %u proto %s maxaddr %u timeout %u\n",
278 	    ma, hc, stpproto[pro], csize, ctime);
279 
280 	PV2ID(ifbp.ifbop_designated_root, bprio, lladdr);
281 	printf("\troot id %s priority %d ifcost %u port %u\n",
282 	    ether_ntoa((struct ether_addr *)lladdr), bprio,
283 	    ifbp.ifbop_root_path_cost, ifbp.ifbop_root_port & 0xfff);
284 
285 	bridge_interfaces(s, "\tmember: ");
286 
287 	return;
288 
289 }
290 
291 static void
292 setbridge_add(const char *val, int d, int s, const struct afswtch *afp)
293 {
294 	struct ifbreq req;
295 
296 	memset(&req, 0, sizeof(req));
297 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
298 	if (do_cmd(s, BRDGADD, &req, sizeof(req), 1) < 0)
299 		err(1, "BRDGADD %s",  val);
300 }
301 
302 static void
303 setbridge_delete(const char *val, int d, int s, const struct afswtch *afp)
304 {
305 	struct ifbreq req;
306 
307 	memset(&req, 0, sizeof(req));
308 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
309 	if (do_cmd(s, BRDGDEL, &req, sizeof(req), 1) < 0)
310 		err(1, "BRDGDEL %s",  val);
311 }
312 
313 static void
314 setbridge_discover(const char *val, int d, int s, const struct afswtch *afp)
315 {
316 
317 	do_bridgeflag(s, val, IFBIF_DISCOVER, 1);
318 }
319 
320 static void
321 unsetbridge_discover(const char *val, int d, int s, const struct afswtch *afp)
322 {
323 
324 	do_bridgeflag(s, val, IFBIF_DISCOVER, 0);
325 }
326 
327 static void
328 setbridge_learn(const char *val, int d, int s, const struct afswtch *afp)
329 {
330 
331 	do_bridgeflag(s, val, IFBIF_LEARNING,  1);
332 }
333 
334 static void
335 unsetbridge_learn(const char *val, int d, int s, const struct afswtch *afp)
336 {
337 
338 	do_bridgeflag(s, val, IFBIF_LEARNING,  0);
339 }
340 
341 static void
342 setbridge_sticky(const char *val, int d, int s, const struct afswtch *afp)
343 {
344 
345 	do_bridgeflag(s, val, IFBIF_STICKY,  1);
346 }
347 
348 static void
349 unsetbridge_sticky(const char *val, int d, int s, const struct afswtch *afp)
350 {
351 
352 	do_bridgeflag(s, val, IFBIF_STICKY,  0);
353 }
354 
355 static void
356 setbridge_span(const char *val, int d, int s, const struct afswtch *afp)
357 {
358 	struct ifbreq req;
359 
360 	memset(&req, 0, sizeof(req));
361 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
362 	if (do_cmd(s, BRDGADDS, &req, sizeof(req), 1) < 0)
363 		err(1, "BRDGADDS %s",  val);
364 }
365 
366 static void
367 unsetbridge_span(const char *val, int d, int s, const struct afswtch *afp)
368 {
369 	struct ifbreq req;
370 
371 	memset(&req, 0, sizeof(req));
372 	strlcpy(req.ifbr_ifsname, val, sizeof(req.ifbr_ifsname));
373 	if (do_cmd(s, BRDGDELS, &req, sizeof(req), 1) < 0)
374 		err(1, "BRDGDELS %s",  val);
375 }
376 
377 static void
378 setbridge_stp(const char *val, int d, int s, const struct afswtch *afp)
379 {
380 
381 	do_bridgeflag(s, val, IFBIF_STP, 1);
382 }
383 
384 static void
385 unsetbridge_stp(const char *val, int d, int s, const struct afswtch *afp)
386 {
387 
388 	do_bridgeflag(s, val, IFBIF_STP, 0);
389 }
390 
391 static void
392 setbridge_edge(const char *val, int d, int s, const struct afswtch *afp)
393 {
394 	do_bridgeflag(s, val, IFBIF_BSTP_EDGE, 1);
395 }
396 
397 static void
398 unsetbridge_edge(const char *val, int d, int s, const struct afswtch *afp)
399 {
400 	do_bridgeflag(s, val, IFBIF_BSTP_EDGE, 0);
401 }
402 
403 static void
404 setbridge_autoedge(const char *val, int d, int s, const struct afswtch *afp)
405 {
406 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOEDGE, 1);
407 }
408 
409 static void
410 unsetbridge_autoedge(const char *val, int d, int s, const struct afswtch *afp)
411 {
412 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOEDGE, 0);
413 }
414 
415 static void
416 setbridge_ptp(const char *val, int d, int s, const struct afswtch *afp)
417 {
418 	do_bridgeflag(s, val, IFBIF_BSTP_PTP, 1);
419 }
420 
421 static void
422 unsetbridge_ptp(const char *val, int d, int s, const struct afswtch *afp)
423 {
424 	do_bridgeflag(s, val, IFBIF_BSTP_PTP, 0);
425 }
426 
427 static void
428 setbridge_autoptp(const char *val, int d, int s, const struct afswtch *afp)
429 {
430 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOPTP, 1);
431 }
432 
433 static void
434 unsetbridge_autoptp(const char *val, int d, int s, const struct afswtch *afp)
435 {
436 	do_bridgeflag(s, val, IFBIF_BSTP_AUTOPTP, 0);
437 }
438 
439 static void
440 setbridge_flush(const char *val, int d, int s, const struct afswtch *afp)
441 {
442 	struct ifbreq req;
443 
444 	memset(&req, 0, sizeof(req));
445 	req.ifbr_ifsflags = IFBF_FLUSHDYN;
446 	if (do_cmd(s, BRDGFLUSH, &req, sizeof(req), 1) < 0)
447 		err(1, "BRDGFLUSH");
448 }
449 
450 static void
451 setbridge_flushall(const char *val, int d, int s, const struct afswtch *afp)
452 {
453 	struct ifbreq req;
454 
455 	memset(&req, 0, sizeof(req));
456 	req.ifbr_ifsflags = IFBF_FLUSHALL;
457 	if (do_cmd(s, BRDGFLUSH, &req, sizeof(req), 1) < 0)
458 		err(1, "BRDGFLUSH");
459 }
460 
461 static void
462 setbridge_static(const char *val, const char *mac, int s,
463     const struct afswtch *afp)
464 {
465 	struct ifbareq req;
466 	struct ether_addr *ea;
467 
468 	memset(&req, 0, sizeof(req));
469 	strlcpy(req.ifba_ifsname, val, sizeof(req.ifba_ifsname));
470 
471 	ea = ether_aton(mac);
472 	if (ea == NULL)
473 		errx(1, "%s: invalid address: %s", val, mac);
474 
475 	memcpy(req.ifba_dst, ea->octet, sizeof(req.ifba_dst));
476 	req.ifba_flags = IFBAF_STATIC;
477 	req.ifba_vlan = 1; /* XXX allow user to specify */
478 
479 	if (do_cmd(s, BRDGSADDR, &req, sizeof(req), 1) < 0)
480 		err(1, "BRDGSADDR %s",  val);
481 }
482 
483 static void
484 setbridge_deladdr(const char *val, int d, int s, const struct afswtch *afp)
485 {
486 	struct ifbareq req;
487 	struct ether_addr *ea;
488 
489 	memset(&req, 0, sizeof(req));
490 
491 	ea = ether_aton(val);
492 	if (ea == NULL)
493 		errx(1, "invalid address: %s",  val);
494 
495 	memcpy(req.ifba_dst, ea->octet, sizeof(req.ifba_dst));
496 
497 	if (do_cmd(s, BRDGDADDR, &req, sizeof(req), 1) < 0)
498 		err(1, "BRDGDADDR %s",  val);
499 }
500 
501 static void
502 setbridge_addr(const char *val, int d, int s, const struct afswtch *afp)
503 {
504 
505 	bridge_addresses(s, "");
506 }
507 
508 static void
509 setbridge_maxaddr(const char *arg, int d, int s, const struct afswtch *afp)
510 {
511 	struct ifbrparam param;
512 	u_long val;
513 
514 	if (get_val(arg, &val) < 0 || (val & ~0xffffffff) != 0)
515 		errx(1, "invalid value: %s",  arg);
516 
517 	param.ifbrp_csize = val & 0xffffffff;
518 
519 	if (do_cmd(s, BRDGSCACHE, &param, sizeof(param), 1) < 0)
520 		err(1, "BRDGSCACHE %s",  arg);
521 }
522 
523 static void
524 setbridge_hellotime(const char *arg, int d, int s, const struct afswtch *afp)
525 {
526 	struct ifbrparam param;
527 	u_long val;
528 
529 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
530 		errx(1, "invalid value: %s",  arg);
531 
532 	param.ifbrp_hellotime = val & 0xff;
533 
534 	if (do_cmd(s, BRDGSHT, &param, sizeof(param), 1) < 0)
535 		err(1, "BRDGSHT %s",  arg);
536 }
537 
538 static void
539 setbridge_fwddelay(const char *arg, int d, int s, const struct afswtch *afp)
540 {
541 	struct ifbrparam param;
542 	u_long val;
543 
544 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
545 		errx(1, "invalid value: %s",  arg);
546 
547 	param.ifbrp_fwddelay = val & 0xff;
548 
549 	if (do_cmd(s, BRDGSFD, &param, sizeof(param), 1) < 0)
550 		err(1, "BRDGSFD %s",  arg);
551 }
552 
553 static void
554 setbridge_maxage(const char *arg, int d, int s, const struct afswtch *afp)
555 {
556 	struct ifbrparam param;
557 	u_long val;
558 
559 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
560 		errx(1, "invalid value: %s",  arg);
561 
562 	param.ifbrp_maxage = val & 0xff;
563 
564 	if (do_cmd(s, BRDGSMA, &param, sizeof(param), 1) < 0)
565 		err(1, "BRDGSMA %s",  arg);
566 }
567 
568 static void
569 setbridge_priority(const char *arg, int d, int s, const struct afswtch *afp)
570 {
571 	struct ifbrparam param;
572 	u_long val;
573 
574 	if (get_val(arg, &val) < 0 || (val & ~0xffff) != 0)
575 		errx(1, "invalid value: %s",  arg);
576 
577 	param.ifbrp_prio = val & 0xffff;
578 
579 	if (do_cmd(s, BRDGSPRI, &param, sizeof(param), 1) < 0)
580 		err(1, "BRDGSPRI %s",  arg);
581 }
582 
583 static void
584 setbridge_protocol(const char *arg, int d, int s, const struct afswtch *afp)
585 {
586 	struct ifbrparam param;
587 
588 	if (strcasecmp(arg, "stp") == 0) {
589 		param.ifbrp_proto = 0;
590 	} else if (strcasecmp(arg, "rstp") == 0) {
591 		param.ifbrp_proto = 2;
592 	} else {
593 		errx(1, "unknown stp protocol");
594 	}
595 
596 	if (do_cmd(s, BRDGSPROTO, &param, sizeof(param), 1) < 0)
597 		err(1, "BRDGSPROTO %s",  arg);
598 }
599 
600 static void
601 setbridge_holdcount(const char *arg, int d, int s, const struct afswtch *afp)
602 {
603 	struct ifbrparam param;
604 	u_long val;
605 
606 	if (get_val(arg, &val) < 0 || (val & ~0xff) != 0)
607 		errx(1, "invalid value: %s",  arg);
608 
609 	param.ifbrp_txhc = val & 0xff;
610 
611 	if (do_cmd(s, BRDGSTXHC, &param, sizeof(param), 1) < 0)
612 		err(1, "BRDGSTXHC %s",  arg);
613 }
614 
615 static void
616 setbridge_ifpriority(const char *ifn, const char *pri, int s,
617     const struct afswtch *afp)
618 {
619 	struct ifbreq req;
620 	u_long val;
621 
622 	memset(&req, 0, sizeof(req));
623 
624 	if (get_val(pri, &val) < 0 || (val & ~0xff) != 0)
625 		errx(1, "invalid value: %s",  pri);
626 
627 	strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
628 	req.ifbr_priority = val & 0xff;
629 
630 	if (do_cmd(s, BRDGSIFPRIO, &req, sizeof(req), 1) < 0)
631 		err(1, "BRDGSIFPRIO %s",  pri);
632 }
633 
634 static void
635 setbridge_ifpathcost(const char *ifn, const char *cost, int s,
636     const struct afswtch *afp)
637 {
638 	struct ifbreq req;
639 	u_long val;
640 
641 	memset(&req, 0, sizeof(req));
642 
643 	if (get_val(cost, &val) < 0)
644 		errx(1, "invalid value: %s",  cost);
645 
646 	strlcpy(req.ifbr_ifsname, ifn, sizeof(req.ifbr_ifsname));
647 	req.ifbr_path_cost = val;
648 
649 	if (do_cmd(s, BRDGSIFCOST, &req, sizeof(req), 1) < 0)
650 		err(1, "BRDGSIFCOST %s",  cost);
651 }
652 
653 static void
654 setbridge_timeout(const char *arg, int d, int s, const struct afswtch *afp)
655 {
656 	struct ifbrparam param;
657 	u_long val;
658 
659 	if (get_val(arg, &val) < 0 || (val & ~0xffffffff) != 0)
660 		errx(1, "invalid value: %s",  arg);
661 
662 	param.ifbrp_ctime = val & 0xffffffff;
663 
664 	if (do_cmd(s, BRDGSTO, &param, sizeof(param), 1) < 0)
665 		err(1, "BRDGSTO %s",  arg);
666 }
667 
668 static void
669 setbridge_private(const char *val, int d, int s, const struct afswtch *afp)
670 {
671 
672 	do_bridgeflag(s, val, IFBIF_PRIVATE, 1);
673 }
674 
675 static void
676 unsetbridge_private(const char *val, int d, int s, const struct afswtch *afp)
677 {
678 
679 	do_bridgeflag(s, val, IFBIF_PRIVATE, 0);
680 }
681 
682 static struct cmd bridge_cmds[] = {
683 	DEF_CMD_ARG("addm",		setbridge_add),
684 	DEF_CMD_ARG("deletem",		setbridge_delete),
685 	DEF_CMD_ARG("discover",		setbridge_discover),
686 	DEF_CMD_ARG("-discover",	unsetbridge_discover),
687 	DEF_CMD_ARG("learn",		setbridge_learn),
688 	DEF_CMD_ARG("-learn",		unsetbridge_learn),
689 	DEF_CMD_ARG("sticky",		setbridge_sticky),
690 	DEF_CMD_ARG("-sticky",		unsetbridge_sticky),
691 	DEF_CMD_ARG("span",		setbridge_span),
692 	DEF_CMD_ARG("-span",		unsetbridge_span),
693 	DEF_CMD_ARG("stp",		setbridge_stp),
694 	DEF_CMD_ARG("-stp",		unsetbridge_stp),
695 	DEF_CMD_ARG("edge",		setbridge_edge),
696 	DEF_CMD_ARG("-edge",		unsetbridge_edge),
697 	DEF_CMD_ARG("autoedge",		setbridge_autoedge),
698 	DEF_CMD_ARG("-autoedge",	unsetbridge_autoedge),
699 	DEF_CMD_ARG("ptp",		setbridge_ptp),
700 	DEF_CMD_ARG("-ptp",		unsetbridge_ptp),
701 	DEF_CMD_ARG("autoptp",		setbridge_autoptp),
702 	DEF_CMD_ARG("-autoptp",		unsetbridge_autoptp),
703 	DEF_CMD("flush", 0,		setbridge_flush),
704 	DEF_CMD("flushall", 0,		setbridge_flushall),
705 	DEF_CMD_ARG2("static",		setbridge_static),
706 	DEF_CMD_ARG("deladdr",		setbridge_deladdr),
707 	DEF_CMD("addr",	 1,		setbridge_addr),
708 	DEF_CMD_ARG("maxaddr",		setbridge_maxaddr),
709 	DEF_CMD_ARG("hellotime",	setbridge_hellotime),
710 	DEF_CMD_ARG("fwddelay",		setbridge_fwddelay),
711 	DEF_CMD_ARG("maxage",		setbridge_maxage),
712 	DEF_CMD_ARG("priority",		setbridge_priority),
713 	DEF_CMD_ARG("proto",		setbridge_protocol),
714 	DEF_CMD_ARG("holdcnt",		setbridge_holdcount),
715 	DEF_CMD_ARG2("ifpriority",	setbridge_ifpriority),
716 	DEF_CMD_ARG2("ifpathcost",	setbridge_ifpathcost),
717 	DEF_CMD_ARG("timeout",		setbridge_timeout),
718 	DEF_CMD_ARG("private",		setbridge_private),
719 	DEF_CMD_ARG("-private",		unsetbridge_private),
720 };
721 static struct afswtch af_bridge = {
722 	.af_name	= "af_bridge",
723 	.af_af		= AF_UNSPEC,
724 	.af_other_status = bridge_status,
725 };
726 
727 static __constructor void
728 bridge_ctor(void)
729 {
730 #define	N(a)	(sizeof(a) / sizeof(a[0]))
731 	int i;
732 
733 	for (i = 0; i < N(bridge_cmds);  i++)
734 		cmd_register(&bridge_cmds[i]);
735 	af_register(&af_bridge);
736 #undef N
737 }
738