xref: /openbsd-src/usr.sbin/ospfctl/ospfctl.c (revision 2777ee89d0e541ec819d05abee114837837abbec)
1 /*	$OpenBSD: ospfctl.c,v 1.63 2015/12/03 11:42:14 claudio Exp $ */
2 
3 /*
4  * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
5  * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
6  * Copyright (c) 2003 Henning Brauer <henning@openbsd.org>
7  *
8  * Permission to use, copy, modify, and distribute this software for any
9  * purpose with or without fee is hereby granted, provided that the above
10  * copyright notice and this permission notice appear in all copies.
11  *
12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19  */
20 
21 #include <sys/types.h>
22 #include <sys/socket.h>
23 #include <sys/un.h>
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
26 #include <net/if_media.h>
27 #include <net/if_types.h>
28 
29 #include <err.h>
30 #include <errno.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35 
36 #include "ospf.h"
37 #include "ospfd.h"
38 #include "ospfe.h"
39 #include "parser.h"
40 
41 __dead void	 usage(void);
42 int		 show_summary_msg(struct imsg *);
43 uint64_t	 get_ifms_type(uint8_t);
44 int		 show_interface_msg(struct imsg *);
45 int		 show_interface_detail_msg(struct imsg *);
46 const char	*print_link(int);
47 const char	*fmt_timeframe(time_t t);
48 const char	*fmt_timeframe_core(time_t t);
49 const char	*log_id(u_int32_t );
50 const char	*log_adv_rtr(u_int32_t);
51 void		 show_database_head(struct in_addr, char *, u_int8_t);
52 int		 show_database_msg(struct imsg *);
53 char		*print_ls_type(u_int8_t);
54 void		 show_db_hdr_msg_detail(struct lsa_hdr *);
55 char		*print_rtr_link_type(u_int8_t);
56 const char	*print_ospf_flags(u_int8_t);
57 int		 show_db_msg_detail(struct imsg *imsg);
58 int		 show_nbr_msg(struct imsg *);
59 const char	*print_ospf_options(u_int8_t);
60 int		 show_nbr_detail_msg(struct imsg *);
61 int		 show_rib_msg(struct imsg *);
62 void		 show_rib_head(struct in_addr, u_int8_t, u_int8_t);
63 const char	*print_ospf_rtr_flags(u_int8_t);
64 int		 show_rib_detail_msg(struct imsg *);
65 void		 show_fib_head(void);
66 int		 show_fib_msg(struct imsg *);
67 void		 show_interface_head(void);
68 const char *	 get_media_descr(uint64_t);
69 const char *	 get_linkstate(uint8_t, int);
70 void		 print_baudrate(u_int64_t);
71 int		 show_fib_interface_msg(struct imsg *);
72 
73 struct imsgbuf	*ibuf;
74 
75 __dead void
76 usage(void)
77 {
78 	extern char *__progname;
79 
80 	fprintf(stderr, "usage: %s [-s socket] command [argument ...]\n",
81 	    __progname);
82 	exit(1);
83 }
84 
85 int
86 main(int argc, char *argv[])
87 {
88 	struct sockaddr_un	 sun;
89 	struct parse_result	*res;
90 	struct imsg		 imsg;
91 	unsigned int		 ifidx = 0;
92 	int			 ctl_sock;
93 	int			 done = 0;
94 	int			 n, verbose = 0;
95 	int			 ch;
96 	char			*sockname;
97 
98 	sockname = OSPFD_SOCKET;
99 	while ((ch = getopt(argc, argv, "s:")) != -1) {
100 		switch (ch) {
101 		case 's':
102 			sockname = optarg;
103 			break;
104 		default:
105 			usage();
106 			/* NOTREACHED */
107 		}
108 	}
109 	argc -= optind;
110 	argv += optind;
111 
112 	/* parse options */
113 	if ((res = parse(argc, argv)) == NULL)
114 		exit(1);
115 
116 	/* connect to ospfd control socket */
117 	if ((ctl_sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
118 		err(1, "socket");
119 
120 	bzero(&sun, sizeof(sun));
121 	sun.sun_family = AF_UNIX;
122 
123 	strlcpy(sun.sun_path, sockname, sizeof(sun.sun_path));
124 	if (connect(ctl_sock, (struct sockaddr *)&sun, sizeof(sun)) == -1)
125 		err(1, "connect: %s", sockname);
126 
127 	if (pledge("stdio", NULL) == -1)
128 		err(1, "pledge");
129 
130 	if ((ibuf = malloc(sizeof(struct imsgbuf))) == NULL)
131 		err(1, NULL);
132 	imsg_init(ibuf, ctl_sock);
133 	done = 0;
134 
135 	/* process user request */
136 	switch (res->action) {
137 	case NONE:
138 		usage();
139 		/* not reached */
140 	case SHOW:
141 	case SHOW_SUM:
142 		imsg_compose(ibuf, IMSG_CTL_SHOW_SUM, 0, 0, -1, NULL, 0);
143 		break;
144 	case SHOW_IFACE:
145 		printf("%-11s %-18s %-6s %-10s %-10s %-8s %3s %3s\n",
146 		    "Interface", "Address", "State", "HelloTimer", "Linkstate",
147 		    "Uptime", "nc", "ac");
148 		/*FALLTHROUGH*/
149 	case SHOW_IFACE_DTAIL:
150 		if (*res->ifname) {
151 			ifidx = if_nametoindex(res->ifname);
152 			if (ifidx == 0)
153 				errx(1, "no such interface %s", res->ifname);
154 		}
155 		imsg_compose(ibuf, IMSG_CTL_SHOW_INTERFACE, 0, 0, -1,
156 		    &ifidx, sizeof(ifidx));
157 		break;
158 	case SHOW_NBR:
159 		printf("%-15s %-3s %-12s %-8s %-15s %-9s %s\n", "ID", "Pri",
160 		    "State", "DeadTime", "Address", "Iface","Uptime");
161 		/*FALLTHROUGH*/
162 	case SHOW_NBR_DTAIL:
163 		imsg_compose(ibuf, IMSG_CTL_SHOW_NBR, 0, 0, -1, NULL, 0);
164 		break;
165 	case SHOW_DB:
166 		imsg_compose(ibuf, IMSG_CTL_SHOW_DATABASE, 0, 0, -1, NULL, 0);
167 		break;
168 	case SHOW_DBBYAREA:
169 		imsg_compose(ibuf, IMSG_CTL_SHOW_DATABASE, 0, 0, -1,
170 		    &res->addr, sizeof(res->addr));
171 		break;
172 	case SHOW_DBEXT:
173 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_EXT, 0, 0, -1, NULL, 0);
174 		break;
175 	case SHOW_DBNET:
176 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_NET, 0, 0, -1, NULL, 0);
177 		break;
178 	case SHOW_DBRTR:
179 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_RTR, 0, 0, -1, NULL, 0);
180 		break;
181 	case SHOW_DBSELF:
182 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_SELF, 0, 0, -1, NULL, 0);
183 		break;
184 	case SHOW_DBSUM:
185 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_SUM, 0, 0, -1, NULL, 0);
186 		break;
187 	case SHOW_DBASBR:
188 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_ASBR, 0, 0, -1, NULL, 0);
189 		break;
190 	case SHOW_DBOPAQ:
191 		imsg_compose(ibuf, IMSG_CTL_SHOW_DB_OPAQ, 0, 0, -1, NULL, 0);
192 		break;
193 	case SHOW_RIB:
194 		printf("%-20s %-17s %-12s %-9s %-7s %-8s\n", "Destination",
195 		    "Nexthop", "Path Type", "Type", "Cost", "Uptime");
196 		/*FALLTHROUGH*/
197 	case SHOW_RIB_DTAIL:
198 		imsg_compose(ibuf, IMSG_CTL_SHOW_RIB, 0, 0, -1, NULL, 0);
199 		break;
200 	case SHOW_FIB:
201 		if (!res->addr.s_addr)
202 			imsg_compose(ibuf, IMSG_CTL_KROUTE, 0, 0, -1,
203 			    &res->flags, sizeof(res->flags));
204 		else
205 			imsg_compose(ibuf, IMSG_CTL_KROUTE_ADDR, 0, 0, -1,
206 			    &res->addr, sizeof(res->addr));
207 		show_fib_head();
208 		break;
209 	case SHOW_FIB_IFACE:
210 		if (*res->ifname)
211 			imsg_compose(ibuf, IMSG_CTL_IFINFO, 0, 0, -1,
212 			    res->ifname, sizeof(res->ifname));
213 		else
214 			imsg_compose(ibuf, IMSG_CTL_IFINFO, 0, 0, -1, NULL, 0);
215 		show_interface_head();
216 		break;
217 	case FIB:
218 		errx(1, "fib couple|decouple");
219 		break;
220 	case FIB_COUPLE:
221 		imsg_compose(ibuf, IMSG_CTL_FIB_COUPLE, 0, 0, -1, NULL, 0);
222 		printf("couple request sent.\n");
223 		done = 1;
224 		break;
225 	case FIB_DECOUPLE:
226 		imsg_compose(ibuf, IMSG_CTL_FIB_DECOUPLE, 0, 0, -1, NULL, 0);
227 		printf("decouple request sent.\n");
228 		done = 1;
229 		break;
230 	case FIB_RELOAD:
231 		imsg_compose(ibuf, IMSG_CTL_FIB_RELOAD, 0, 0, -1, NULL, 0);
232 		printf("reload request sent.\n");
233 		done = 1;
234 		break;
235 	case LOG_VERBOSE:
236 		verbose = 1;
237 		/* FALLTHROUGH */
238 	case LOG_BRIEF:
239 		imsg_compose(ibuf, IMSG_CTL_LOG_VERBOSE, 0, 0, -1,
240 		    &verbose, sizeof(verbose));
241 		printf("logging request sent.\n");
242 		done = 1;
243 		break;
244 	case RELOAD:
245 		imsg_compose(ibuf, IMSG_CTL_RELOAD, 0, 0, -1, NULL, 0);
246 		printf("reload request sent.\n");
247 		done = 1;
248 		break;
249 	}
250 
251 	while (ibuf->w.queued)
252 		if (msgbuf_write(&ibuf->w) <= 0 && errno != EAGAIN)
253 			err(1, "write error");
254 
255 	while (!done) {
256 		if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
257 			errx(1, "imsg_read error");
258 		if (n == 0)
259 			errx(1, "pipe closed");
260 
261 		while (!done) {
262 			if ((n = imsg_get(ibuf, &imsg)) == -1)
263 				errx(1, "imsg_get error");
264 			if (n == 0)
265 				break;
266 			switch (res->action) {
267 			case SHOW:
268 			case SHOW_SUM:
269 				done = show_summary_msg(&imsg);
270 				break;
271 			case SHOW_IFACE:
272 				done = show_interface_msg(&imsg);
273 				break;
274 			case SHOW_IFACE_DTAIL:
275 				done = show_interface_detail_msg(&imsg);
276 				break;
277 			case SHOW_NBR:
278 				done = show_nbr_msg(&imsg);
279 				break;
280 			case SHOW_NBR_DTAIL:
281 				done = show_nbr_detail_msg(&imsg);
282 				break;
283 			case SHOW_DB:
284 			case SHOW_DBBYAREA:
285 			case SHOW_DBSELF:
286 				done = show_database_msg(&imsg);
287 				break;
288 			case SHOW_DBEXT:
289 			case SHOW_DBNET:
290 			case SHOW_DBRTR:
291 			case SHOW_DBSUM:
292 			case SHOW_DBASBR:
293 			case SHOW_DBOPAQ:
294 				done = show_db_msg_detail(&imsg);
295 				break;
296 			case SHOW_RIB:
297 				done = show_rib_msg(&imsg);
298 				break;
299 			case SHOW_RIB_DTAIL:
300 				done = show_rib_detail_msg(&imsg);
301 				break;
302 			case SHOW_FIB:
303 				done = show_fib_msg(&imsg);
304 				break;
305 			case SHOW_FIB_IFACE:
306 				done = show_fib_interface_msg(&imsg);
307 				break;
308 			case NONE:
309 			case FIB:
310 			case FIB_COUPLE:
311 			case FIB_DECOUPLE:
312 			case FIB_RELOAD:
313 			case LOG_VERBOSE:
314 			case LOG_BRIEF:
315 			case RELOAD:
316 				break;
317 			}
318 			imsg_free(&imsg);
319 		}
320 	}
321 	close(ctl_sock);
322 	free(ibuf);
323 
324 	return (0);
325 }
326 
327 int
328 show_summary_msg(struct imsg *imsg)
329 {
330 	struct ctl_sum		*sum;
331 	struct ctl_sum_area	*sumarea;
332 
333 	switch (imsg->hdr.type) {
334 	case IMSG_CTL_SHOW_SUM:
335 		sum = imsg->data;
336 		printf("Router ID: %s\n", inet_ntoa(sum->rtr_id));
337 		printf("Uptime: %s\n", fmt_timeframe_core(sum->uptime));
338 		printf("RFC1583 compatibility flag is ");
339 		if (sum->rfc1583compat)
340 			printf("enabled\n");
341 		else
342 			printf("disabled\n");
343 
344 		printf("SPF delay is %d msec(s), hold time between two SPFs "
345 		    "is %d msec(s)\n", sum->spf_delay, sum->spf_hold_time);
346 		printf("Number of external LSA(s) %d (Checksum sum 0x%x)\n",
347 		    sum->num_ext_lsa, sum->ext_lsa_cksum);
348 		printf("Number of areas attached to this router: %d\n",
349 		    sum->num_area);
350 		break;
351 	case IMSG_CTL_SHOW_SUM_AREA:
352 		sumarea = imsg->data;
353 		printf("\nArea ID: %s\n", inet_ntoa(sumarea->area));
354 		printf("  Number of interfaces in this area: %d\n",
355 		    sumarea->num_iface);
356 		printf("  Number of fully adjacent neighbors in this "
357 		    "area: %d\n", sumarea->num_adj_nbr);
358 		printf("  SPF algorithm executed %d time(s)\n",
359 		    sumarea->num_spf_calc);
360 		printf("  Number LSA(s) %d (Checksum sum 0x%x)\n",
361 		    sumarea->num_lsa, sumarea->lsa_cksum);
362 		break;
363 	case IMSG_CTL_END:
364 		printf("\n");
365 		return (1);
366 	default:
367 		break;
368 	}
369 
370 	return (0);
371 }
372 
373 uint64_t
374 get_ifms_type(uint8_t if_type)
375 {
376 	switch (if_type) {
377 	case IFT_ETHER:
378 		return (IFM_ETHER);
379 	case IFT_FDDI:
380 		return (IFM_FDDI);
381 	case IFT_CARP:
382 		return (IFM_CARP);
383 	case IFT_PPP:
384 		return (IFM_TDM);
385 	default:
386 		return (0);
387 	}
388 }
389 
390 int
391 show_interface_msg(struct imsg *imsg)
392 {
393 	struct ctl_iface	*iface;
394 	char			*netid;
395 
396 	switch (imsg->hdr.type) {
397 	case IMSG_CTL_SHOW_INTERFACE:
398 		iface = imsg->data;
399 
400 		if (asprintf(&netid, "%s/%d", inet_ntoa(iface->addr),
401 		    mask2prefixlen(iface->mask.s_addr)) == -1)
402 			err(1, NULL);
403 		printf("%-11s %-18s %-6s %-10s %-10s %s %3d %3d\n",
404 		    iface->name, netid, if_state_name(iface->state),
405 		    iface->hello_timer.tv_sec < 0 ? "-" :
406 		    fmt_timeframe_core(iface->hello_timer.tv_sec),
407 		    get_linkstate(iface->if_type, iface->linkstate),
408 		    fmt_timeframe_core(iface->uptime),
409 		    iface->nbr_cnt, iface->adj_cnt);
410 		free(netid);
411 		break;
412 	case IMSG_CTL_END:
413 		printf("\n");
414 		return (1);
415 	default:
416 		break;
417 	}
418 
419 	return (0);
420 }
421 
422 int
423 show_interface_detail_msg(struct imsg *imsg)
424 {
425 	struct ctl_iface	*iface;
426 
427 	switch (imsg->hdr.type) {
428 	case IMSG_CTL_SHOW_INTERFACE:
429 		iface = imsg->data;
430 		printf("\n");
431 		printf("Interface %s, line protocol is %s\n",
432 		    iface->name, print_link(iface->flags));
433 		printf("  Internet address %s/%d, ",
434 		    inet_ntoa(iface->addr),
435 		    mask2prefixlen(iface->mask.s_addr));
436 		printf("Area %s\n", inet_ntoa(iface->area));
437 		printf("  Linkstate %s\n",
438 		    get_linkstate(iface->if_type, iface->linkstate));
439 		printf("  Router ID %s, network type %s, cost: %d\n",
440 		    inet_ntoa(iface->rtr_id),
441 		    if_type_name(iface->type), iface->metric);
442 		printf("  Transmit delay is %d sec(s), state %s, priority %d\n",
443 		    iface->transmit_delay, if_state_name(iface->state),
444 		    iface->priority);
445 		printf("  Designated Router (ID) %s, ",
446 		    inet_ntoa(iface->dr_id));
447 		printf("interface address %s\n", inet_ntoa(iface->dr_addr));
448 		printf("  Backup Designated Router (ID) %s, ",
449 		    inet_ntoa(iface->bdr_id));
450 		printf("interface address %s\n", inet_ntoa(iface->bdr_addr));
451 		if (iface->dead_interval == FAST_RTR_DEAD_TIME) {
452 			printf("  Timer intervals configured, "
453 			    "hello %d msec, dead %d, wait %d, retransmit %d\n",
454 			     iface->fast_hello_interval, iface->dead_interval,
455 			     iface->dead_interval, iface->rxmt_interval);
456 
457 		} else {
458 			printf("  Timer intervals configured, "
459 			    "hello %d, dead %d, wait %d, retransmit %d\n",
460 			     iface->hello_interval, iface->dead_interval,
461 			     iface->dead_interval, iface->rxmt_interval);
462 		}
463 		if (iface->passive)
464 			printf("    Passive interface (No Hellos)\n");
465 		else if (iface->hello_timer.tv_sec < 0)
466 			printf("    Hello timer not running\n");
467 		else
468 			printf("    Hello timer due in %s+%ldmsec\n",
469 			    fmt_timeframe_core(iface->hello_timer.tv_sec),
470 			    iface->hello_timer.tv_usec / 1000);
471 		printf("    Uptime %s\n", fmt_timeframe_core(iface->uptime));
472 		printf("  Neighbor count is %d, adjacent neighbor count is "
473 		    "%d\n", iface->nbr_cnt, iface->adj_cnt);
474 		if (iface->auth_type > 0) {
475 			switch (iface->auth_type) {
476 			case AUTH_SIMPLE:
477 				printf("  Simple password authentication "
478 				    "enabled\n");
479 				break;
480 			case AUTH_CRYPT:
481 				printf("  Message digest authentication "
482 				    "enabled\n");
483 				printf("    Primary key id is %d\n",
484 				    iface->auth_keyid);
485 				break;
486 			default:
487 				break;
488 			}
489 		}
490 		break;
491 	case IMSG_CTL_END:
492 		printf("\n");
493 		return (1);
494 	default:
495 		break;
496 	}
497 
498 	return (0);
499 }
500 
501 const char *
502 print_link(int state)
503 {
504 	if (state & IFF_UP)
505 		return ("UP");
506 	else
507 		return ("DOWN");
508 }
509 
510 #define TF_BUFS	8
511 #define TF_LEN	9
512 
513 const char *
514 fmt_timeframe(time_t t)
515 {
516 	if (t == 0)
517 		return ("Never");
518 	else
519 		return (fmt_timeframe_core(time(NULL) - t));
520 }
521 
522 const char *
523 fmt_timeframe_core(time_t t)
524 {
525 	char		*buf;
526 	static char	 tfbuf[TF_BUFS][TF_LEN];	/* ring buffer */
527 	static int	 idx = 0;
528 	unsigned int	 sec, min, hrs, day;
529 	unsigned long long	week;
530 
531 	if (t == 0)
532 		return ("00:00:00");
533 
534 	buf = tfbuf[idx++];
535 	if (idx == TF_BUFS)
536 		idx = 0;
537 
538 	week = t;
539 
540 	sec = week % 60;
541 	week /= 60;
542 	min = week % 60;
543 	week /= 60;
544 	hrs = week % 24;
545 	week /= 24;
546 	day = week % 7;
547 	week /= 7;
548 
549 	if (week > 0)
550 		snprintf(buf, TF_LEN, "%02lluw%01ud%02uh", week, day, hrs);
551 	else if (day > 0)
552 		snprintf(buf, TF_LEN, "%01ud%02uh%02um", day, hrs, min);
553 	else
554 		snprintf(buf, TF_LEN, "%02u:%02u:%02u", hrs, min, sec);
555 
556 	return (buf);
557 }
558 
559 const char *
560 log_id(u_int32_t id)
561 {
562 	static char	buf[48];
563 	struct in_addr	addr;
564 
565 	addr.s_addr = id;
566 
567 	if (inet_ntop(AF_INET, &addr, buf, sizeof(buf)) == NULL)
568 		return ("?");
569 	else
570 		return (buf);
571 }
572 
573 const char *
574 log_adv_rtr(u_int32_t adv_rtr)
575 {
576 	static char	buf[48];
577 	struct in_addr	addr;
578 
579 	addr.s_addr = adv_rtr;
580 
581 	if (inet_ntop(AF_INET, &addr, buf, sizeof(buf)) == NULL)
582 		return ("?");
583 	else
584 		return (buf);
585 }
586 
587 /* prototype defined in ospfd.h and shared with the kroute.c version */
588 u_int8_t
589 mask2prefixlen(in_addr_t ina)
590 {
591 	if (ina == 0)
592 		return (0);
593 	else
594 		return (33 - ffs(ntohl(ina)));
595 }
596 
597 void
598 show_database_head(struct in_addr aid, char *ifname, u_int8_t type)
599 {
600 	char	*header, *format;
601 	int	 cleanup = 0;
602 
603 	switch (type) {
604 	case LSA_TYPE_ROUTER:
605 		format = "Router Link States";
606 		break;
607 	case LSA_TYPE_NETWORK:
608 		format = "Net Link States";
609 		break;
610 	case LSA_TYPE_SUM_NETWORK:
611 		format = "Summary Net Link States";
612 		break;
613 	case LSA_TYPE_SUM_ROUTER:
614 		format = "Summary Router Link States";
615 		break;
616 	case LSA_TYPE_EXTERNAL:
617 		format = NULL;
618 		if ((header = strdup("Type-5 AS External Link States")) == NULL)
619 			err(1, NULL);
620 		break;
621 	case LSA_TYPE_LINK_OPAQ:
622 		format = "Type-9 Link Local Opaque Link States";
623 		break;
624 	case LSA_TYPE_AREA_OPAQ:
625 		format = "Type-10 Area Local Opaque Link States";
626 		break;
627 	case LSA_TYPE_AS_OPAQ:
628 		format = NULL;
629 		if ((header = strdup("Type-11 AS Wide Opaque Link States")) ==
630 		    NULL)
631 			err(1, NULL);
632 		break;
633 	default:
634 		if (asprintf(&format, "LSA type %x", ntohs(type)) == -1)
635 			err(1, NULL);
636 		cleanup = 1;
637 		break;
638 	}
639 	if (type == LSA_TYPE_LINK_OPAQ) {
640 		if (asprintf(&header, "%s (Area %s Interface %s)", format,
641 		    inet_ntoa(aid), ifname) == -1)
642 			err(1, NULL);
643 	} else if (type != LSA_TYPE_EXTERNAL && type != LSA_TYPE_AS_OPAQ)
644 		if (asprintf(&header, "%s (Area %s)", format,
645 		    inet_ntoa(aid)) == -1)
646 			err(1, NULL);
647 
648 	printf("\n%-15s %s\n\n", "", header);
649 	free(header);
650 	if (cleanup)
651 		free(format);
652 }
653 
654 int
655 show_database_msg(struct imsg *imsg)
656 {
657 	static struct in_addr	 area_id;
658 	static char		 ifname[IF_NAMESIZE];
659 	static u_int8_t		 lasttype;
660 	struct area		*area;
661 	struct iface		*iface;
662 	struct lsa_hdr		*lsa;
663 
664 	switch (imsg->hdr.type) {
665 	case IMSG_CTL_SHOW_DATABASE:
666 	case IMSG_CTL_SHOW_DB_SELF:
667 		lsa = imsg->data;
668 		if (lsa->type != lasttype) {
669 			show_database_head(area_id, ifname, lsa->type);
670 			printf("%-15s %-15s %-4s %-10s %-8s\n", "Link ID",
671 			    "Adv Router", "Age", "Seq#", "Checksum");
672 		}
673 		printf("%-15s %-15s %-4d 0x%08x 0x%04x\n",
674 		    log_id(lsa->ls_id), log_adv_rtr(lsa->adv_rtr),
675 		    ntohs(lsa->age), ntohl(lsa->seq_num),
676 		    ntohs(lsa->ls_chksum));
677 		lasttype = lsa->type;
678 		break;
679 	case IMSG_CTL_AREA:
680 		area = imsg->data;
681 		area_id = area->id;
682 		lasttype = 0;
683 		break;
684 	case IMSG_CTL_IFACE:
685 		iface = imsg->data;
686 		strlcpy(ifname, iface->name, sizeof(ifname));
687 		lasttype = 0;
688 		break;
689 	case IMSG_CTL_END:
690 		printf("\n");
691 		return (1);
692 	default:
693 		break;
694 	}
695 
696 	return (0);
697 }
698 
699 char *
700 print_ls_type(u_int8_t type)
701 {
702 	switch (type) {
703 	case LSA_TYPE_ROUTER:
704 		return ("Router");
705 	case LSA_TYPE_NETWORK:
706 		return ("Network");
707 	case LSA_TYPE_SUM_NETWORK:
708 		return ("Summary (Network)");
709 	case LSA_TYPE_SUM_ROUTER:
710 		return ("Summary (Router)");
711 	case LSA_TYPE_EXTERNAL:
712 		return ("AS External");
713 	case LSA_TYPE_LINK_OPAQ:
714 		return ("Type-9 Opaque");
715 	case LSA_TYPE_AREA_OPAQ:
716 		return ("Type-10 Opaque");
717 	case LSA_TYPE_AS_OPAQ:
718 		return ("Type-11 Opaque");
719 	default:
720 		return ("Unknown");
721 	}
722 }
723 
724 void
725 show_db_hdr_msg_detail(struct lsa_hdr *lsa)
726 {
727 	printf("LS age: %d\n", ntohs(lsa->age));
728 	printf("Options: %s\n", print_ospf_options(lsa->opts));
729 	printf("LS Type: %s\n", print_ls_type(lsa->type));
730 
731 	switch (lsa->type) {
732 	case LSA_TYPE_ROUTER:
733 		printf("Link State ID: %s\n", log_id(lsa->ls_id));
734 		break;
735 	case LSA_TYPE_NETWORK:
736 		printf("Link State ID: %s (address of Designated Router)\n",
737 		    log_id(lsa->ls_id));
738 		break;
739 	case LSA_TYPE_SUM_NETWORK:
740 		printf("Link State ID: %s (Network ID)\n", log_id(lsa->ls_id));
741 		break;
742 	case LSA_TYPE_SUM_ROUTER:
743 		printf("Link State ID: %s (ASBR Router ID)\n",
744 		    log_id(lsa->ls_id));
745 		break;
746 	case LSA_TYPE_EXTERNAL:
747 		printf("Link State ID: %s (External Network Number)\n",
748 		     log_id(lsa->ls_id));
749 		break;
750 	case LSA_TYPE_LINK_OPAQ:
751 	case LSA_TYPE_AREA_OPAQ:
752 	case LSA_TYPE_AS_OPAQ:
753 		printf("Link State ID: %s Type %d ID %d\n", log_id(lsa->ls_id),
754 		    LSA_24_GETHI(ntohl(lsa->ls_id)),
755 		    LSA_24_GETLO(ntohl(lsa->ls_id)));
756 		break;
757 	}
758 
759 	printf("Advertising Router: %s\n", log_adv_rtr(lsa->adv_rtr));
760 	printf("LS Seq Number: 0x%08x\n", ntohl(lsa->seq_num));
761 	printf("Checksum: 0x%04x\n", ntohs(lsa->ls_chksum));
762 	printf("Length: %d\n", ntohs(lsa->len));
763 }
764 
765 char *
766 print_rtr_link_type(u_int8_t type)
767 {
768 	switch (type) {
769 	case LINK_TYPE_POINTTOPOINT:
770 		return ("Point-to-Point");
771 	case LINK_TYPE_TRANSIT_NET:
772 		return ("Transit Network");
773 	case LINK_TYPE_STUB_NET:
774 		return ("Stub Network");
775 	case LINK_TYPE_VIRTUAL:
776 		return ("Virtual Link");
777 	default:
778 		return ("Unknown");
779 	}
780 }
781 
782 const char *
783 print_ospf_flags(u_int8_t opts)
784 {
785 	static char	optbuf[32];
786 
787 	snprintf(optbuf, sizeof(optbuf), "*|*|*|*|*|%s|%s|%s",
788 	    opts & OSPF_RTR_V ? "V" : "-",
789 	    opts & OSPF_RTR_E ? "E" : "-",
790 	    opts & OSPF_RTR_B ? "B" : "-");
791 	return (optbuf);
792 }
793 
794 int
795 show_db_msg_detail(struct imsg *imsg)
796 {
797 	static struct in_addr	 area_id;
798 	static char		 ifname[IF_NAMESIZE];
799 	static u_int8_t		 lasttype;
800 	struct in_addr		 addr, data;
801 	struct area		*area;
802 	struct iface		*iface;
803 	struct lsa		*lsa;
804 	struct lsa_rtr_link	*rtr_link;
805 	struct lsa_asext	*asext;
806 	u_int16_t		 i, nlinks, off;
807 
808 	/* XXX sanity checks! */
809 
810 	switch (imsg->hdr.type) {
811 	case IMSG_CTL_SHOW_DB_EXT:
812 		lsa = imsg->data;
813 		if (lsa->hdr.type != lasttype)
814 			show_database_head(area_id, ifname, lsa->hdr.type);
815 		show_db_hdr_msg_detail(&lsa->hdr);
816 		addr.s_addr = lsa->data.asext.mask;
817 		printf("Network Mask: %s\n", inet_ntoa(addr));
818 
819 		asext = (struct lsa_asext *)((char *)lsa + sizeof(lsa->hdr));
820 
821 		printf("    Metric type: ");
822 		if (ntohl(lsa->data.asext.metric) & LSA_ASEXT_E_FLAG)
823 			printf("2\n");
824 		else
825 			printf("1\n");
826 		printf("    Metric: %d\n", ntohl(asext->metric)
827 		    & LSA_METRIC_MASK);
828 		addr.s_addr = asext->fw_addr;
829 		printf("    Forwarding Address: %s\n", inet_ntoa(addr));
830 		printf("    External Route Tag: %d\n\n", ntohl(asext->ext_tag));
831 
832 		lasttype = lsa->hdr.type;
833 		break;
834 	case IMSG_CTL_SHOW_DB_NET:
835 		lsa = imsg->data;
836 		if (lsa->hdr.type != lasttype)
837 			show_database_head(area_id, ifname, lsa->hdr.type);
838 		show_db_hdr_msg_detail(&lsa->hdr);
839 		addr.s_addr = lsa->data.net.mask;
840 		printf("Network Mask: %s\n", inet_ntoa(addr));
841 
842 		nlinks = (ntohs(lsa->hdr.len) - sizeof(struct lsa_hdr)
843 		    - sizeof(u_int32_t)) / sizeof(struct lsa_net_link);
844 		off = sizeof(lsa->hdr) + sizeof(u_int32_t);
845 		printf("Number of Routers: %d\n", nlinks);
846 
847 		for (i = 0; i < nlinks; i++) {
848 			addr.s_addr = lsa->data.net.att_rtr[i];
849 			printf("    Attached Router: %s\n", inet_ntoa(addr));
850 		}
851 
852 		printf("\n");
853 		lasttype = lsa->hdr.type;
854 		break;
855 	case IMSG_CTL_SHOW_DB_RTR:
856 		lsa = imsg->data;
857 		if (lsa->hdr.type != lasttype)
858 			show_database_head(area_id, ifname, lsa->hdr.type);
859 		show_db_hdr_msg_detail(&lsa->hdr);
860 		printf("Flags: %s\n", print_ospf_flags(lsa->data.rtr.flags));
861 		nlinks = ntohs(lsa->data.rtr.nlinks);
862 		printf("Number of Links: %d\n\n", nlinks);
863 
864 		off = sizeof(lsa->hdr) + sizeof(struct lsa_rtr);
865 
866 		for (i = 0; i < nlinks; i++) {
867 			rtr_link = (struct lsa_rtr_link *)((char *)lsa + off);
868 
869 			printf("    Link connected to: %s\n",
870 			    print_rtr_link_type(rtr_link->type));
871 
872 			addr.s_addr = rtr_link->id;
873 			data.s_addr = rtr_link->data;
874 
875 			switch (rtr_link->type) {
876 			case LINK_TYPE_POINTTOPOINT:
877 			case LINK_TYPE_VIRTUAL:
878 				printf("    Link ID (Neighbors Router ID):"
879 				    " %s\n", inet_ntoa(addr));
880 				printf("    Link Data (Router Interface "
881 				    "address): %s\n", inet_ntoa(data));
882 				break;
883 			case LINK_TYPE_TRANSIT_NET:
884 				printf("    Link ID (Designated Router "
885 				    "address): %s\n", inet_ntoa(addr));
886 				printf("    Link Data (Router Interface "
887 				    "address): %s\n", inet_ntoa(data));
888 				break;
889 			case LINK_TYPE_STUB_NET:
890 				printf("    Link ID (Network ID): %s\n",
891 				    inet_ntoa(addr));
892 				printf("    Link Data (Network Mask): %s\n",
893 				    inet_ntoa(data));
894 				break;
895 			default:
896 				printf("    Link ID (Unknown): %s\n",
897 				    inet_ntoa(addr));
898 				printf("    Link Data (Unknown): %s\n",
899 				    inet_ntoa(data));
900 				break;
901 			}
902 
903 			printf("    Metric: %d\n\n", ntohs(rtr_link->metric));
904 
905 			off += sizeof(struct lsa_rtr_link) +
906 			    rtr_link->num_tos * sizeof(u_int32_t);
907 		}
908 
909 		lasttype = lsa->hdr.type;
910 		break;
911 	case IMSG_CTL_SHOW_DB_SUM:
912 	case IMSG_CTL_SHOW_DB_ASBR:
913 		lsa = imsg->data;
914 		if (lsa->hdr.type != lasttype)
915 			show_database_head(area_id, ifname, lsa->hdr.type);
916 		show_db_hdr_msg_detail(&lsa->hdr);
917 		addr.s_addr = lsa->data.sum.mask;
918 		printf("Network Mask: %s\n", inet_ntoa(addr));
919 		printf("Metric: %d\n\n", ntohl(lsa->data.sum.metric) &
920 		    LSA_METRIC_MASK);
921 		lasttype = lsa->hdr.type;
922 		break;
923 	case IMSG_CTL_SHOW_DB_OPAQ:
924 		lsa = imsg->data;
925 		if (lsa->hdr.type != lasttype)
926 			show_database_head(area_id, ifname, lsa->hdr.type);
927 		show_db_hdr_msg_detail(&lsa->hdr);
928 		/* XXX should we hexdump the data? */
929 		lasttype = lsa->hdr.type;
930 		break;
931 	case IMSG_CTL_AREA:
932 		area = imsg->data;
933 		area_id = area->id;
934 		lasttype = 0;
935 		break;
936 	case IMSG_CTL_IFACE:
937 		iface = imsg->data;
938 		strlcpy(ifname, iface->name, sizeof(ifname));
939 		lasttype = 0;
940 		break;
941 	case IMSG_CTL_END:
942 		return (1);
943 	default:
944 		break;
945 	}
946 
947 	return (0);
948 }
949 
950 int
951 show_nbr_msg(struct imsg *imsg)
952 {
953 	struct ctl_nbr	*nbr;
954 	char		*state;
955 
956 	switch (imsg->hdr.type) {
957 	case IMSG_CTL_SHOW_NBR:
958 		nbr = imsg->data;
959 		if (asprintf(&state, "%s/%s", nbr_state_name(nbr->nbr_state),
960 		    if_state_name(nbr->iface_state)) == -1)
961 			err(1, NULL);
962 		printf("%-15s %-3d %-12s %-9s", inet_ntoa(nbr->id),
963 		    nbr->priority, state, fmt_timeframe_core(nbr->dead_timer));
964 		printf("%-15s %-9s %s\n", inet_ntoa(nbr->addr), nbr->name,
965 		    nbr->uptime == 0 ? "-" : fmt_timeframe_core(nbr->uptime));
966 		free(state);
967 		break;
968 	case IMSG_CTL_END:
969 		printf("\n");
970 		return (1);
971 	default:
972 		break;
973 	}
974 
975 	return (0);
976 }
977 
978 const char *
979 print_ospf_options(u_int8_t opts)
980 {
981 	static char	optbuf[32];
982 
983 	snprintf(optbuf, sizeof(optbuf), "%s|%s|%s|%s|%s|%s|%s|%s",
984 	    opts & OSPF_OPTION_DN ? "DN" : "-",
985 	    opts & OSPF_OPTION_O ? "O" : "-",
986 	    opts & OSPF_OPTION_DC ? "DC" : "-",
987 	    opts & OSPF_OPTION_EA ? "EA" : "-",
988 	    opts & OSPF_OPTION_NP ? "N/P" : "-",
989 	    opts & OSPF_OPTION_MC ? "MC" : "-",
990 	    opts & OSPF_OPTION_E ? "E" : "-",
991 	    opts & OSPF_OPTION_MT ? "MT" : "-");
992 	return (optbuf);
993 }
994 
995 int
996 show_nbr_detail_msg(struct imsg *imsg)
997 {
998 	struct ctl_nbr	*nbr;
999 
1000 	switch (imsg->hdr.type) {
1001 	case IMSG_CTL_SHOW_NBR:
1002 		nbr = imsg->data;
1003 		printf("\nNeighbor %s, ", inet_ntoa(nbr->id));
1004 		printf("interface address %s\n", inet_ntoa(nbr->addr));
1005 		printf("  Area %s, interface %s\n", inet_ntoa(nbr->area),
1006 		    nbr->name);
1007 		printf("  Neighbor priority is %d, "
1008 		    "State is %s, %d state changes\n",
1009 		    nbr->priority, nbr_state_name(nbr->nbr_state),
1010 		    nbr->state_chng_cnt);
1011 		printf("  DR is %s, ", inet_ntoa(nbr->dr));
1012 		printf("BDR is %s\n", inet_ntoa(nbr->bdr));
1013 		printf("  Options %s\n", print_ospf_options(nbr->options));
1014 		printf("  Dead timer due in %s\n",
1015 		    fmt_timeframe_core(nbr->dead_timer));
1016 		printf("  Uptime %s\n", fmt_timeframe_core(nbr->uptime));
1017 		printf("  Database Summary List %d\n", nbr->db_sum_lst_cnt);
1018 		printf("  Link State Request List %d\n", nbr->ls_req_lst_cnt);
1019 		printf("  Link State Retransmission List %d\n",
1020 		    nbr->ls_retrans_lst_cnt);
1021 		break;
1022 	case IMSG_CTL_END:
1023 		printf("\n");
1024 		return (1);
1025 	default:
1026 		break;
1027 	}
1028 
1029 	return (0);
1030 }
1031 
1032 int
1033 show_rib_msg(struct imsg *imsg)
1034 {
1035 	struct ctl_rt	*rt;
1036 	char		*dstnet;
1037 
1038 	switch (imsg->hdr.type) {
1039 	case IMSG_CTL_SHOW_RIB:
1040 		rt = imsg->data;
1041 		switch (rt->d_type) {
1042 		case DT_NET:
1043 			if (asprintf(&dstnet, "%s/%d", inet_ntoa(rt->prefix),
1044 			    rt->prefixlen) == -1)
1045 				err(1, NULL);
1046 			break;
1047 		case DT_RTR:
1048 			if (asprintf(&dstnet, "%s",
1049 			    inet_ntoa(rt->prefix)) == -1)
1050 				err(1, NULL);
1051 			break;
1052 		default:
1053 			errx(1, "Invalid route type");
1054 		}
1055 
1056 		printf("%-20s %-16s%s %-12s %-9s %-7d %s\n", dstnet,
1057 		    inet_ntoa(rt->nexthop), rt->connected ? "C" : " ",
1058 		    path_type_name(rt->p_type),
1059 		    dst_type_name(rt->d_type), rt->cost,
1060 		    rt->uptime == 0 ? "-" : fmt_timeframe_core(rt->uptime));
1061 		free(dstnet);
1062 		break;
1063 	case IMSG_CTL_END:
1064 		printf("\n");
1065 		return (1);
1066 	default:
1067 		break;
1068 	}
1069 
1070 	return (0);
1071 }
1072 
1073 void
1074 show_rib_head(struct in_addr aid, u_int8_t d_type, u_int8_t p_type)
1075 {
1076 	char	*header, *format, *format2;
1077 
1078 	switch (p_type) {
1079 	case PT_INTRA_AREA:
1080 	case PT_INTER_AREA:
1081 		switch (d_type) {
1082 		case DT_NET:
1083 			format = "Network Routing Table";
1084 			format2 = "";
1085 			break;
1086 		case DT_RTR:
1087 			format = "Router Routing Table";
1088 			format2 = "Type";
1089 			break;
1090 		default:
1091 			errx(1, "unknown route type");
1092 		}
1093 		break;
1094 	case PT_TYPE1_EXT:
1095 	case PT_TYPE2_EXT:
1096 		format = NULL;
1097 		format2 = "Cost 2";
1098 		if ((header = strdup("External Routing Table")) == NULL)
1099 			err(1, NULL);
1100 		break;
1101 	default:
1102 		errx(1, "unknown route type");
1103 	}
1104 
1105 	if (p_type != PT_TYPE1_EXT && p_type != PT_TYPE2_EXT)
1106 		if (asprintf(&header, "%s (Area %s)", format,
1107 		    inet_ntoa(aid)) == -1)
1108 			err(1, NULL);
1109 
1110 	printf("\n%-18s %s\n", "", header);
1111 	free(header);
1112 
1113 	printf("\n%-18s %-15s %-15s %-12s %-7s %-7s\n", "Destination",
1114 	    "Nexthop", "Adv Router", "Path type", "Cost", format2);
1115 }
1116 
1117 const char *
1118 print_ospf_rtr_flags(u_int8_t opts)
1119 {
1120 	static char	optbuf[32];
1121 
1122 	snprintf(optbuf, sizeof(optbuf), "%s%s%s",
1123 	    opts & OSPF_RTR_E ? "AS" : "",
1124 	    opts & OSPF_RTR_E && opts & OSPF_RTR_B ? "+" : "",
1125 	    opts & OSPF_RTR_B ? "ABR" : "");
1126 	return (optbuf);
1127 }
1128 
1129 int
1130 show_rib_detail_msg(struct imsg *imsg)
1131 {
1132 	static struct in_addr	 area_id;
1133 	struct ctl_rt		*rt;
1134 	struct area		*area;
1135 	char			*dstnet;
1136 	static u_int8_t		 lasttype;
1137 
1138 	switch (imsg->hdr.type) {
1139 	case IMSG_CTL_SHOW_RIB:
1140 		rt = imsg->data;
1141 
1142 		switch (rt->p_type) {
1143 		case PT_INTRA_AREA:
1144 		case PT_INTER_AREA:
1145 			switch (rt->d_type) {
1146 			case DT_NET:
1147 				if (lasttype != RIB_NET)
1148 					show_rib_head(rt->area, rt->d_type,
1149 					     rt->p_type);
1150 				if (asprintf(&dstnet, "%s/%d",
1151 				    inet_ntoa(rt->prefix), rt->prefixlen) == -1)
1152 					err(1, NULL);
1153 				lasttype = RIB_NET;
1154 				break;
1155 			case DT_RTR:
1156 				if (lasttype != RIB_RTR)
1157 					show_rib_head(rt->area, rt->d_type,
1158 					     rt->p_type);
1159 				if (asprintf(&dstnet, "%s",
1160 				    inet_ntoa(rt->prefix)) == -1)
1161 					err(1, NULL);
1162 				lasttype = RIB_RTR;
1163 				break;
1164 			default:
1165 				errx(1, "unknown route type");
1166 			}
1167 			printf("%-18s %-15s ", dstnet, inet_ntoa(rt->nexthop));
1168 			printf("%-15s %-12s %-7d", inet_ntoa(rt->adv_rtr),
1169 			    path_type_name(rt->p_type), rt->cost);
1170 			free(dstnet);
1171 
1172 			if (rt->d_type == DT_RTR)
1173 				printf(" %-7s",
1174 				    print_ospf_rtr_flags(rt->flags));
1175 
1176 			printf("\n");
1177 			break;
1178 		case PT_TYPE1_EXT:
1179 		case PT_TYPE2_EXT:
1180 			if (lasttype != RIB_EXT)
1181 				show_rib_head(rt->area, rt->d_type, rt->p_type);
1182 
1183 			if (asprintf(&dstnet, "%s/%d",
1184 			    inet_ntoa(rt->prefix), rt->prefixlen) == -1)
1185 				err(1, NULL);
1186 
1187 			printf("%-18s %-15s ", dstnet, inet_ntoa(rt->nexthop));
1188 			printf("%-15s %-12s %-7d %-7d\n",
1189 			    inet_ntoa(rt->adv_rtr), path_type_name(rt->p_type),
1190 			    rt->cost, rt->cost2);
1191 			free(dstnet);
1192 
1193 			lasttype = RIB_EXT;
1194 			break;
1195 		default:
1196 			errx(1, "unknown route type");
1197 		}
1198 		break;
1199 	case IMSG_CTL_AREA:
1200 		area = imsg->data;
1201 		area_id = area->id;
1202 		break;
1203 	case IMSG_CTL_END:
1204 		printf("\n");
1205 		return (1);
1206 	default:
1207 		break;
1208 	}
1209 
1210 	return (0);
1211 }
1212 
1213 void
1214 show_fib_head(void)
1215 {
1216 	printf("flags: * = valid, O = OSPF, C = Connected, S = Static\n");
1217 	printf("%-6s %-4s %-20s %-17s\n", "Flags", "Prio", "Destination", "Nexthop");
1218 }
1219 
1220 int
1221 show_fib_msg(struct imsg *imsg)
1222 {
1223 	struct kroute		*k;
1224 	char			*p;
1225 
1226 	switch (imsg->hdr.type) {
1227 	case IMSG_CTL_KROUTE:
1228 		if (imsg->hdr.len < IMSG_HEADER_SIZE + sizeof(struct kroute))
1229 			errx(1, "wrong imsg len");
1230 		k = imsg->data;
1231 
1232 		if (k->flags & F_DOWN)
1233 			printf(" ");
1234 		else
1235 			printf("*");
1236 
1237 		if (!(k->flags & F_KERNEL))
1238 			printf("O");
1239 		else if (k->flags & F_CONNECTED)
1240 			printf("C");
1241 		else if (k->flags & F_STATIC)
1242 			printf("S");
1243 		else
1244 			printf(" ");
1245 
1246 		printf("     ");
1247 		printf("%4d ", k->priority);
1248 		if (asprintf(&p, "%s/%u", inet_ntoa(k->prefix), k->prefixlen) ==
1249 		    -1)
1250 			err(1, NULL);
1251 		printf("%-20s ", p);
1252 		free(p);
1253 
1254 		if (k->nexthop.s_addr)
1255 			printf("%s", inet_ntoa(k->nexthop));
1256 		else if (k->flags & F_CONNECTED)
1257 			printf("link#%u", k->ifindex);
1258 		printf("\n");
1259 
1260 		break;
1261 	case IMSG_CTL_END:
1262 		printf("\n");
1263 		return (1);
1264 	default:
1265 		break;
1266 	}
1267 
1268 	return (0);
1269 }
1270 
1271 void
1272 show_interface_head(void)
1273 {
1274 	printf("%-15s%-15s%s\n", "Interface", "Flags",
1275 	    "Link state");
1276 }
1277 
1278 const struct if_status_description
1279 		if_status_descriptions[] = LINK_STATE_DESCRIPTIONS;
1280 const struct ifmedia_description
1281 		ifm_type_descriptions[] = IFM_TYPE_DESCRIPTIONS;
1282 
1283 const char *
1284 get_media_descr(uint64_t media_type)
1285 {
1286 	const struct ifmedia_description	*p;
1287 
1288 	for (p = ifm_type_descriptions; p->ifmt_string != NULL; p++)
1289 		if (media_type == p->ifmt_word)
1290 			return (p->ifmt_string);
1291 
1292 	return ("unknown");
1293 }
1294 
1295 const char *
1296 get_linkstate(uint8_t if_type, int link_state)
1297 {
1298 	const struct if_status_description *p;
1299 	static char buf[8];
1300 
1301 	for (p = if_status_descriptions; p->ifs_string != NULL; p++) {
1302 		if (LINK_STATE_DESC_MATCH(p, if_type, link_state))
1303 			return (p->ifs_string);
1304 	}
1305 	snprintf(buf, sizeof(buf), "[#%d]", link_state);
1306 	return (buf);
1307 }
1308 
1309 void
1310 print_baudrate(u_int64_t baudrate)
1311 {
1312 	if (baudrate > IF_Gbps(1))
1313 		printf("%llu GBit/s", baudrate / IF_Gbps(1));
1314 	else if (baudrate > IF_Mbps(1))
1315 		printf("%llu MBit/s", baudrate / IF_Mbps(1));
1316 	else if (baudrate > IF_Kbps(1))
1317 		printf("%llu KBit/s", baudrate / IF_Kbps(1));
1318 	else
1319 		printf("%llu Bit/s", baudrate);
1320 }
1321 
1322 int
1323 show_fib_interface_msg(struct imsg *imsg)
1324 {
1325 	struct kif	*k;
1326 	uint64_t	 ifms_type;
1327 
1328 	switch (imsg->hdr.type) {
1329 	case IMSG_CTL_IFINFO:
1330 		k = imsg->data;
1331 		printf("%-15s", k->ifname);
1332 		printf("%-15s", k->flags & IFF_UP ? "UP" : "");
1333 		ifms_type = get_ifms_type(k->if_type);
1334 		if (ifms_type)
1335 			printf("%s, ", get_media_descr(ifms_type));
1336 
1337 		printf("%s", get_linkstate(k->if_type, k->link_state));
1338 
1339 		if (k->link_state != LINK_STATE_DOWN && k->baudrate > 0) {
1340 			printf(", ");
1341 			print_baudrate(k->baudrate);
1342 		}
1343 		printf("\n");
1344 		break;
1345 	case IMSG_CTL_END:
1346 		printf("\n");
1347 		return (1);
1348 	default:
1349 		break;
1350 	}
1351 
1352 	return (0);
1353 }
1354