1 /* $NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $ */
2 /* $FreeBSD$ */
3
4 /*-
5 * SPDX-License-Identifier: BSD-4-Clause
6 *
7 * Copyright (c) 1997 Jason R. Thorpe.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed for the NetBSD Project
21 * by Jason R. Thorpe.
22 * 4. The name of the author may not be used to endorse or promote products
23 * derived from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
32 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 /*
39 * Copyright (c) 1983, 1993
40 * The Regents of the University of California. All rights reserved.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 */
66
67 #include <sys/param.h>
68 #include <sys/ioctl.h>
69 #include <sys/socket.h>
70 #include <sys/sysctl.h>
71 #include <sys/time.h>
72
73 #include <net/if.h>
74 #include <net/if_dl.h>
75 #include <net/if_types.h>
76 #include <net/if_media.h>
77 #include <net/route.h>
78
79 #include <ctype.h>
80 #include <err.h>
81 #include <errno.h>
82 #include <fcntl.h>
83 #include <stdbool.h>
84 #include <stdio.h>
85 #include <stdlib.h>
86 #include <string.h>
87 #include <unistd.h>
88
89 #include "ifconfig.h"
90
91 static void domediaopt(const char *, int, int);
92 static int get_media_subtype(int, const char *);
93 static int get_media_mode(int, const char *);
94 static int get_media_options(int, const char *);
95 static int lookup_media_word(struct ifmedia_description *, const char *);
96 static void print_media_word(int, int);
97 static void print_media_word_ifconfig(int);
98
99 static struct ifmedia_description *get_toptype_desc(int);
100 static struct ifmedia_type_to_subtype *get_toptype_ttos(int);
101 static struct ifmedia_description *get_subtype_desc(int,
102 struct ifmedia_type_to_subtype *ttos);
103
104 #define IFM_OPMODE(x) \
105 ((x) & (IFM_IEEE80211_ADHOC | IFM_IEEE80211_HOSTAP | \
106 IFM_IEEE80211_IBSS | IFM_IEEE80211_WDS | IFM_IEEE80211_MONITOR | \
107 IFM_IEEE80211_MBSS))
108 #define IFM_IEEE80211_STA 0
109
110 static void
media_status(int s)111 media_status(int s)
112 {
113 struct ifmediareq ifmr;
114 struct ifdownreason ifdr;
115 int *media_list, i;
116 bool no_carrier, xmedia;
117
118 (void) memset(&ifmr, 0, sizeof(ifmr));
119 (void) strlcpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
120 xmedia = true;
121
122 /*
123 * Check if interface supports extended media types.
124 */
125 if (ioctl(s, SIOCGIFXMEDIA, (caddr_t)&ifmr) < 0)
126 xmedia = false;
127 if (!xmedia && ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
128 /*
129 * Interface doesn't support SIOC{G,S}IFMEDIA.
130 */
131 return;
132 }
133
134 if (ifmr.ifm_count == 0) {
135 warnx("%s: no media types?", name);
136 return;
137 }
138
139 media_list = (int *)malloc(ifmr.ifm_count * sizeof(int));
140 if (media_list == NULL)
141 err(1, "malloc");
142 ifmr.ifm_ulist = media_list;
143
144 if (xmedia) {
145 if (ioctl(s, SIOCGIFXMEDIA, (caddr_t)&ifmr) < 0)
146 err(1, "SIOCGIFXMEDIA");
147 } else {
148 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
149 err(1, "SIOCGIFMEDIA");
150 }
151
152 printf("\tmedia: ");
153 print_media_word(ifmr.ifm_current, 1);
154 if (ifmr.ifm_active != ifmr.ifm_current) {
155 putchar(' ');
156 putchar('(');
157 print_media_word(ifmr.ifm_active, 0);
158 putchar(')');
159 }
160
161 putchar('\n');
162
163 if (ifmr.ifm_status & IFM_AVALID) {
164 no_carrier = false;
165 printf("\tstatus: ");
166 switch (IFM_TYPE(ifmr.ifm_active)) {
167 case IFM_ETHER:
168 case IFM_ATM:
169 if (ifmr.ifm_status & IFM_ACTIVE)
170 printf("active");
171 else
172 no_carrier = true;
173 break;
174
175 case IFM_IEEE80211:
176 if (ifmr.ifm_status & IFM_ACTIVE) {
177 /* NB: only sta mode associates */
178 if (IFM_OPMODE(ifmr.ifm_active) == IFM_IEEE80211_STA)
179 printf("associated");
180 else
181 printf("running");
182 } else
183 no_carrier = true;
184 break;
185 }
186 if (no_carrier) {
187 printf("no carrier");
188 memset(&ifdr, 0, sizeof(ifdr));
189 strlcpy(ifdr.ifdr_name, name, sizeof(ifdr.ifdr_name));
190 if (ioctl(s, SIOCGIFDOWNREASON, (caddr_t)&ifdr) == 0) {
191 switch (ifdr.ifdr_reason) {
192 case IFDR_REASON_MSG:
193 printf(" (%s)", ifdr.ifdr_msg);
194 break;
195 case IFDR_REASON_VENDOR:
196 printf(" (vendor code %d)",
197 ifdr.ifdr_vendor);
198 break;
199 default:
200 break;
201 }
202 }
203 }
204 putchar('\n');
205 }
206
207 if (ifmr.ifm_count > 0 && supmedia) {
208 printf("\tsupported media:\n");
209 for (i = 0; i < ifmr.ifm_count; i++) {
210 printf("\t\t");
211 print_media_word_ifconfig(media_list[i]);
212 putchar('\n');
213 }
214 }
215
216 free(media_list);
217 }
218
219 struct ifmediareq *
ifmedia_getstate(int s)220 ifmedia_getstate(int s)
221 {
222 static struct ifmediareq *ifmr = NULL;
223 int *mwords;
224 int xmedia = 1;
225
226 if (ifmr == NULL) {
227 ifmr = (struct ifmediareq *)malloc(sizeof(struct ifmediareq));
228 if (ifmr == NULL)
229 err(1, "malloc");
230
231 (void) memset(ifmr, 0, sizeof(struct ifmediareq));
232 (void) strlcpy(ifmr->ifm_name, name,
233 sizeof(ifmr->ifm_name));
234
235 ifmr->ifm_count = 0;
236 ifmr->ifm_ulist = NULL;
237
238 /*
239 * We must go through the motions of reading all
240 * supported media because we need to know both
241 * the current media type and the top-level type.
242 */
243
244 if (ioctl(s, SIOCGIFXMEDIA, (caddr_t)ifmr) < 0) {
245 xmedia = 0;
246 }
247 if (xmedia == 0 && ioctl(s, SIOCGIFMEDIA, (caddr_t)ifmr) < 0) {
248 err(1, "SIOCGIFMEDIA");
249 }
250
251 if (ifmr->ifm_count == 0)
252 errx(1, "%s: no media types?", name);
253
254 mwords = (int *)malloc(ifmr->ifm_count * sizeof(int));
255 if (mwords == NULL)
256 err(1, "malloc");
257
258 ifmr->ifm_ulist = mwords;
259 if (xmedia) {
260 if (ioctl(s, SIOCGIFXMEDIA, (caddr_t)ifmr) < 0)
261 err(1, "SIOCGIFXMEDIA");
262 } else {
263 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)ifmr) < 0)
264 err(1, "SIOCGIFMEDIA");
265 }
266 }
267
268 return ifmr;
269 }
270
271 static void
setifmediacallback(int s,void * arg)272 setifmediacallback(int s, void *arg)
273 {
274 struct ifmediareq *ifmr = (struct ifmediareq *)arg;
275 static int did_it = 0;
276
277 if (!did_it) {
278 ifr.ifr_media = ifmr->ifm_current;
279 if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
280 err(1, "SIOCSIFMEDIA (media)");
281 free(ifmr->ifm_ulist);
282 free(ifmr);
283 did_it = 1;
284 }
285 }
286
287 static void
setmedia(const char * val,int d,int s,const struct afswtch * afp)288 setmedia(const char *val, int d, int s, const struct afswtch *afp)
289 {
290 struct ifmediareq *ifmr;
291 int subtype;
292
293 ifmr = ifmedia_getstate(s);
294
295 /*
296 * We are primarily concerned with the top-level type.
297 * However, "current" may be only IFM_NONE, so we just look
298 * for the top-level type in the first "supported type"
299 * entry.
300 *
301 * (I'm assuming that all supported media types for a given
302 * interface will be the same top-level type..)
303 */
304 subtype = get_media_subtype(IFM_TYPE(ifmr->ifm_ulist[0]), val);
305
306 strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
307 ifr.ifr_media = (ifmr->ifm_current & IFM_IMASK) |
308 IFM_TYPE(ifmr->ifm_ulist[0]) | subtype;
309
310 ifmr->ifm_current = ifr.ifr_media;
311 callback_register(setifmediacallback, (void *)ifmr);
312 }
313
314 static void
setmediaopt(const char * val,int d,int s,const struct afswtch * afp)315 setmediaopt(const char *val, int d, int s, const struct afswtch *afp)
316 {
317
318 domediaopt(val, 0, s);
319 }
320
321 static void
unsetmediaopt(const char * val,int d,int s,const struct afswtch * afp)322 unsetmediaopt(const char *val, int d, int s, const struct afswtch *afp)
323 {
324
325 domediaopt(val, 1, s);
326 }
327
328 static void
domediaopt(const char * val,int clear,int s)329 domediaopt(const char *val, int clear, int s)
330 {
331 struct ifmediareq *ifmr;
332 int options;
333
334 ifmr = ifmedia_getstate(s);
335
336 options = get_media_options(IFM_TYPE(ifmr->ifm_ulist[0]), val);
337
338 strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
339 ifr.ifr_media = ifmr->ifm_current;
340 if (clear)
341 ifr.ifr_media &= ~options;
342 else {
343 if (options & IFM_HDX) {
344 ifr.ifr_media &= ~IFM_FDX;
345 options &= ~IFM_HDX;
346 }
347 ifr.ifr_media |= options;
348 }
349 ifmr->ifm_current = ifr.ifr_media;
350 callback_register(setifmediacallback, (void *)ifmr);
351 }
352
353 static void
setmediainst(const char * val,int d,int s,const struct afswtch * afp)354 setmediainst(const char *val, int d, int s, const struct afswtch *afp)
355 {
356 struct ifmediareq *ifmr;
357 int inst;
358
359 ifmr = ifmedia_getstate(s);
360
361 inst = atoi(val);
362 if (inst < 0 || inst > (int)IFM_INST_MAX)
363 errx(1, "invalid media instance: %s", val);
364
365 strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
366 ifr.ifr_media = (ifmr->ifm_current & ~IFM_IMASK) | inst << IFM_ISHIFT;
367
368 ifmr->ifm_current = ifr.ifr_media;
369 callback_register(setifmediacallback, (void *)ifmr);
370 }
371
372 static void
setmediamode(const char * val,int d,int s,const struct afswtch * afp)373 setmediamode(const char *val, int d, int s, const struct afswtch *afp)
374 {
375 struct ifmediareq *ifmr;
376 int mode;
377
378 ifmr = ifmedia_getstate(s);
379
380 mode = get_media_mode(IFM_TYPE(ifmr->ifm_ulist[0]), val);
381
382 strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
383 ifr.ifr_media = (ifmr->ifm_current & ~IFM_MMASK) | mode;
384
385 ifmr->ifm_current = ifr.ifr_media;
386 callback_register(setifmediacallback, (void *)ifmr);
387 }
388
389 /**********************************************************************
390 * A good chunk of this is duplicated from sys/net/if_media.c
391 **********************************************************************/
392
393 static struct ifmedia_description ifm_type_descriptions[] =
394 IFM_TYPE_DESCRIPTIONS;
395
396 static struct ifmedia_description ifm_subtype_ethernet_descriptions[] =
397 IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
398
399 static struct ifmedia_description ifm_subtype_ethernet_aliases[] =
400 IFM_SUBTYPE_ETHERNET_ALIASES;
401
402 static struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] =
403 IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS;
404
405 static struct ifmedia_description ifm_subtype_ieee80211_descriptions[] =
406 IFM_SUBTYPE_IEEE80211_DESCRIPTIONS;
407
408 static struct ifmedia_description ifm_subtype_ieee80211_aliases[] =
409 IFM_SUBTYPE_IEEE80211_ALIASES;
410
411 static struct ifmedia_description ifm_subtype_ieee80211_option_descriptions[] =
412 IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS;
413
414 struct ifmedia_description ifm_subtype_ieee80211_mode_descriptions[] =
415 IFM_SUBTYPE_IEEE80211_MODE_DESCRIPTIONS;
416
417 struct ifmedia_description ifm_subtype_ieee80211_mode_aliases[] =
418 IFM_SUBTYPE_IEEE80211_MODE_ALIASES;
419
420 static struct ifmedia_description ifm_subtype_atm_descriptions[] =
421 IFM_SUBTYPE_ATM_DESCRIPTIONS;
422
423 static struct ifmedia_description ifm_subtype_atm_aliases[] =
424 IFM_SUBTYPE_ATM_ALIASES;
425
426 static struct ifmedia_description ifm_subtype_atm_option_descriptions[] =
427 IFM_SUBTYPE_ATM_OPTION_DESCRIPTIONS;
428
429 static struct ifmedia_description ifm_subtype_shared_descriptions[] =
430 IFM_SUBTYPE_SHARED_DESCRIPTIONS;
431
432 static struct ifmedia_description ifm_subtype_shared_aliases[] =
433 IFM_SUBTYPE_SHARED_ALIASES;
434
435 static struct ifmedia_description ifm_shared_option_descriptions[] =
436 IFM_SHARED_OPTION_DESCRIPTIONS;
437
438 static struct ifmedia_description ifm_shared_option_aliases[] =
439 IFM_SHARED_OPTION_ALIASES;
440
441 struct ifmedia_type_to_subtype {
442 struct {
443 struct ifmedia_description *desc;
444 int alias;
445 } subtypes[5];
446 struct {
447 struct ifmedia_description *desc;
448 int alias;
449 } options[4];
450 struct {
451 struct ifmedia_description *desc;
452 int alias;
453 } modes[3];
454 };
455
456 /* must be in the same order as IFM_TYPE_DESCRIPTIONS */
457 static struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] = {
458 {
459 {
460 { &ifm_subtype_shared_descriptions[0], 0 },
461 { &ifm_subtype_shared_aliases[0], 1 },
462 { &ifm_subtype_ethernet_descriptions[0], 0 },
463 { &ifm_subtype_ethernet_aliases[0], 1 },
464 { NULL, 0 },
465 },
466 {
467 { &ifm_shared_option_descriptions[0], 0 },
468 { &ifm_shared_option_aliases[0], 1 },
469 { &ifm_subtype_ethernet_option_descriptions[0], 0 },
470 { NULL, 0 },
471 },
472 {
473 { NULL, 0 },
474 },
475 },
476 {
477 {
478 { &ifm_subtype_shared_descriptions[0], 0 },
479 { &ifm_subtype_shared_aliases[0], 1 },
480 { &ifm_subtype_ieee80211_descriptions[0], 0 },
481 { &ifm_subtype_ieee80211_aliases[0], 1 },
482 { NULL, 0 },
483 },
484 {
485 { &ifm_shared_option_descriptions[0], 0 },
486 { &ifm_shared_option_aliases[0], 1 },
487 { &ifm_subtype_ieee80211_option_descriptions[0], 0 },
488 { NULL, 0 },
489 },
490 {
491 { &ifm_subtype_ieee80211_mode_descriptions[0], 0 },
492 { &ifm_subtype_ieee80211_mode_aliases[0], 0 },
493 { NULL, 0 },
494 },
495 },
496 {
497 {
498 { &ifm_subtype_shared_descriptions[0], 0 },
499 { &ifm_subtype_shared_aliases[0], 1 },
500 { &ifm_subtype_atm_descriptions[0], 0 },
501 { &ifm_subtype_atm_aliases[0], 1 },
502 { NULL, 0 },
503 },
504 {
505 { &ifm_shared_option_descriptions[0], 0 },
506 { &ifm_shared_option_aliases[0], 1 },
507 { &ifm_subtype_atm_option_descriptions[0], 0 },
508 { NULL, 0 },
509 },
510 {
511 { NULL, 0 },
512 },
513 },
514 };
515
516 static int
get_media_subtype(int type,const char * val)517 get_media_subtype(int type, const char *val)
518 {
519 struct ifmedia_description *desc;
520 struct ifmedia_type_to_subtype *ttos;
521 int rval, i;
522
523 /* Find the top-level interface type. */
524 for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
525 desc->ifmt_string != NULL; desc++, ttos++)
526 if (type == desc->ifmt_word)
527 break;
528 if (desc->ifmt_string == NULL)
529 errx(1, "unknown media type 0x%x", type);
530
531 for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
532 rval = lookup_media_word(ttos->subtypes[i].desc, val);
533 if (rval != -1)
534 return (rval);
535 }
536 errx(1, "unknown media subtype: %s", val);
537 /*NOTREACHED*/
538 }
539
540 static int
get_media_mode(int type,const char * val)541 get_media_mode(int type, const char *val)
542 {
543 struct ifmedia_description *desc;
544 struct ifmedia_type_to_subtype *ttos;
545 int rval, i;
546
547 /* Find the top-level interface type. */
548 for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
549 desc->ifmt_string != NULL; desc++, ttos++)
550 if (type == desc->ifmt_word)
551 break;
552 if (desc->ifmt_string == NULL)
553 errx(1, "unknown media mode 0x%x", type);
554
555 for (i = 0; ttos->modes[i].desc != NULL; i++) {
556 rval = lookup_media_word(ttos->modes[i].desc, val);
557 if (rval != -1)
558 return (rval);
559 }
560 return -1;
561 }
562
563 static int
get_media_options(int type,const char * val)564 get_media_options(int type, const char *val)
565 {
566 struct ifmedia_description *desc;
567 struct ifmedia_type_to_subtype *ttos;
568 char *optlist, *optptr;
569 int option, i, rval = 0;
570
571 /* We muck with the string, so copy it. */
572 optlist = strdup(val);
573 if (optlist == NULL)
574 err(1, "strdup");
575
576 /* Find the top-level interface type. */
577 for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
578 desc->ifmt_string != NULL; desc++, ttos++)
579 if (type == desc->ifmt_word)
580 break;
581 if (desc->ifmt_string == NULL)
582 errx(1, "unknown media type 0x%x", type);
583
584 /*
585 * Look up the options in the user-provided comma-separated
586 * list.
587 */
588 optptr = optlist;
589 for (; (optptr = strtok(optptr, ",")) != NULL; optptr = NULL) {
590 option = -1;
591 for (i = 0; ttos->options[i].desc != NULL; i++) {
592 option = lookup_media_word(ttos->options[i].desc, optptr);
593 if (option != -1)
594 break;
595 }
596 if (option == -1)
597 errx(1, "unknown option: %s", optptr);
598 rval |= option;
599 }
600
601 free(optlist);
602 return (rval);
603 }
604
605 static int
lookup_media_word(struct ifmedia_description * desc,const char * val)606 lookup_media_word(struct ifmedia_description *desc, const char *val)
607 {
608
609 for (; desc->ifmt_string != NULL; desc++)
610 if (strcasecmp(desc->ifmt_string, val) == 0)
611 return (desc->ifmt_word);
612
613 return (-1);
614 }
615
get_toptype_desc(int ifmw)616 static struct ifmedia_description *get_toptype_desc(int ifmw)
617 {
618 struct ifmedia_description *desc;
619
620 for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++)
621 if (IFM_TYPE(ifmw) == desc->ifmt_word)
622 break;
623
624 return desc;
625 }
626
get_toptype_ttos(int ifmw)627 static struct ifmedia_type_to_subtype *get_toptype_ttos(int ifmw)
628 {
629 struct ifmedia_description *desc;
630 struct ifmedia_type_to_subtype *ttos;
631
632 for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
633 desc->ifmt_string != NULL; desc++, ttos++)
634 if (IFM_TYPE(ifmw) == desc->ifmt_word)
635 break;
636
637 return ttos;
638 }
639
get_subtype_desc(int ifmw,struct ifmedia_type_to_subtype * ttos)640 static struct ifmedia_description *get_subtype_desc(int ifmw,
641 struct ifmedia_type_to_subtype *ttos)
642 {
643 int i;
644 struct ifmedia_description *desc;
645
646 for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
647 if (ttos->subtypes[i].alias)
648 continue;
649 for (desc = ttos->subtypes[i].desc;
650 desc->ifmt_string != NULL; desc++) {
651 if (IFM_SUBTYPE(ifmw) == desc->ifmt_word)
652 return desc;
653 }
654 }
655
656 return NULL;
657 }
658
get_mode_desc(int ifmw,struct ifmedia_type_to_subtype * ttos)659 static struct ifmedia_description *get_mode_desc(int ifmw,
660 struct ifmedia_type_to_subtype *ttos)
661 {
662 int i;
663 struct ifmedia_description *desc;
664
665 for (i = 0; ttos->modes[i].desc != NULL; i++) {
666 if (ttos->modes[i].alias)
667 continue;
668 for (desc = ttos->modes[i].desc;
669 desc->ifmt_string != NULL; desc++) {
670 if (IFM_MODE(ifmw) == desc->ifmt_word)
671 return desc;
672 }
673 }
674
675 return NULL;
676 }
677
678 static void
print_media_word(int ifmw,int print_toptype)679 print_media_word(int ifmw, int print_toptype)
680 {
681 struct ifmedia_description *desc;
682 struct ifmedia_type_to_subtype *ttos;
683 int seen_option = 0, i;
684
685 /* Find the top-level interface type. */
686 desc = get_toptype_desc(ifmw);
687 ttos = get_toptype_ttos(ifmw);
688 if (desc->ifmt_string == NULL) {
689 printf("<unknown type>");
690 return;
691 } else if (print_toptype) {
692 printf("%s", desc->ifmt_string);
693 }
694
695 /*
696 * Don't print the top-level type; it's not like we can
697 * change it, or anything.
698 */
699
700 /* Find subtype. */
701 desc = get_subtype_desc(ifmw, ttos);
702 if (desc == NULL) {
703 printf("<unknown subtype>");
704 return;
705 }
706
707 if (print_toptype)
708 putchar(' ');
709
710 printf("%s", desc->ifmt_string);
711
712 if (print_toptype) {
713 desc = get_mode_desc(ifmw, ttos);
714 if (desc != NULL && strcasecmp("autoselect", desc->ifmt_string))
715 printf(" mode %s", desc->ifmt_string);
716 }
717
718 /* Find options. */
719 for (i = 0; ttos->options[i].desc != NULL; i++) {
720 if (ttos->options[i].alias)
721 continue;
722 for (desc = ttos->options[i].desc;
723 desc->ifmt_string != NULL; desc++) {
724 if (ifmw & desc->ifmt_word) {
725 if (seen_option == 0)
726 printf(" <");
727 printf("%s%s", seen_option++ ? "," : "",
728 desc->ifmt_string);
729 }
730 }
731 }
732 printf("%s", seen_option ? ">" : "");
733
734 if (print_toptype && IFM_INST(ifmw) != 0)
735 printf(" instance %d", IFM_INST(ifmw));
736 }
737
738 static void
print_media_word_ifconfig(int ifmw)739 print_media_word_ifconfig(int ifmw)
740 {
741 struct ifmedia_description *desc;
742 struct ifmedia_type_to_subtype *ttos;
743 int seen_option = 0, i;
744
745 /* Find the top-level interface type. */
746 desc = get_toptype_desc(ifmw);
747 ttos = get_toptype_ttos(ifmw);
748 if (desc->ifmt_string == NULL) {
749 printf("<unknown type>");
750 return;
751 }
752
753 /*
754 * Don't print the top-level type; it's not like we can
755 * change it, or anything.
756 */
757
758 /* Find subtype. */
759 desc = get_subtype_desc(ifmw, ttos);
760 if (desc == NULL) {
761 printf("<unknown subtype>");
762 return;
763 }
764
765 printf("media %s", desc->ifmt_string);
766
767 desc = get_mode_desc(ifmw, ttos);
768 if (desc != NULL)
769 printf(" mode %s", desc->ifmt_string);
770
771 /* Find options. */
772 for (i = 0; ttos->options[i].desc != NULL; i++) {
773 if (ttos->options[i].alias)
774 continue;
775 for (desc = ttos->options[i].desc;
776 desc->ifmt_string != NULL; desc++) {
777 if (ifmw & desc->ifmt_word) {
778 if (seen_option == 0)
779 printf(" mediaopt ");
780 printf("%s%s", seen_option++ ? "," : "",
781 desc->ifmt_string);
782 }
783 }
784 }
785
786 if (IFM_INST(ifmw) != 0)
787 printf(" instance %d", IFM_INST(ifmw));
788 }
789
790 /**********************************************************************
791 * ...until here.
792 **********************************************************************/
793
794 static struct cmd media_cmds[] = {
795 DEF_CMD_ARG("media", setmedia),
796 DEF_CMD_ARG("mode", setmediamode),
797 DEF_CMD_ARG("mediaopt", setmediaopt),
798 DEF_CMD_ARG("-mediaopt",unsetmediaopt),
799 DEF_CMD_ARG("inst", setmediainst),
800 DEF_CMD_ARG("instance", setmediainst),
801 };
802 static struct afswtch af_media = {
803 .af_name = "af_media",
804 .af_af = AF_UNSPEC,
805 .af_other_status = media_status,
806 };
807
808 static __constructor void
ifmedia_ctor(void)809 ifmedia_ctor(void)
810 {
811 size_t i;
812
813 for (i = 0; i < nitems(media_cmds); i++)
814 cmd_register(&media_cmds[i]);
815 af_register(&af_media);
816 }
817