sbin/ifconfig/ifmedia.c

   1 /*      $NetBSD: ifconfig.c,v 1.34 1997/04/21 01:17:58 lukem Exp $      */
   2 /* $FreeBSD$ */
   3
   4 /*
   5  * Copyright (c) 1997 Jason R. Thorpe.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed for the NetBSD Project
  19  *      by Jason R. Thorpe.
  20  * 4. The name of the author may not be used to endorse or promote products
  21  *    derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  28  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  29  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  30  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  31  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 /*
  37  * Copyright (c) 1983, 1993
  38  *      The Regents of the University of California.  All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 4. Neither the name of the University nor the names of its contributors
  49  *    may be used to endorse or promote products derived from this software
  50  *    without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  62  * SUCH DAMAGE.
  63  */
  64
  65 #include <sys/param.h>
  66 #include <sys/ioctl.h>
  67 #include <sys/socket.h>
  68 #include <sys/sysctl.h>
  69 #include <sys/time.h>
  70
  71 #include <net/if.h>
  72 #include <net/if_dl.h>
  73 #include <net/if_types.h>
  74 #include <net/if_media.h>
  75 #include <net/route.h>
  76
  77 #include <ctype.h>
  78 #include <err.h>
  79 #include <errno.h>
  80 #include <fcntl.h>
  81 #include <stdio.h>
  82 #include <stdlib.h>
  83 #include <string.h>
  84 #include <unistd.h>
  85
  86 #include "ifconfig.h"
  87
  88 static void     domediaopt(const char *, int, int);
  89 static int      get_media_subtype(int, const char *);
  90 static int      get_media_mode(int, const char *);
  91 static int      get_media_options(int, const char *);
  92 static int      lookup_media_word(struct ifmedia_description *, const char *);
  93 static void     print_media_word(int, int);
  94 static void     print_media_word_ifconfig(int);
  95
  96 static struct ifmedia_description *get_toptype_desc(int);
  97 static struct ifmedia_type_to_subtype *get_toptype_ttos(int);
  98 static struct ifmedia_description *get_subtype_desc(int,
  99     struct ifmedia_type_to_subtype *ttos);
 100
 101 #define IFM_OPMODE(x) \
 102         ((x) & (IFM_IEEE80211_ADHOC | IFM_IEEE80211_HOSTAP | \
 103          IFM_IEEE80211_IBSS | IFM_IEEE80211_WDS | IFM_IEEE80211_MONITOR | \
 104          IFM_IEEE80211_MBSS))
 105 #define IFM_IEEE80211_STA       0
 106
 107 static void
 108 media_status(int s)
 109 {
 110         struct ifmediareq ifmr;
 111         int *media_list, i;
 112
 113         (void) memset(&ifmr, 0, sizeof(ifmr));
 114         (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name));
 115
 116         if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) {
 117                 /*
 118                  * Interface doesn't support SIOC{G,S}IFMEDIA.
 119                  */
 120                 return;
 121         }
 122
 123         if (ifmr.ifm_count == 0) {
 124                 warnx("%s: no media types?", name);
 125                 return;
 126         }
 127
 128         media_list = (int *)malloc(ifmr.ifm_count * sizeof(int));
 129         if (media_list == NULL)
 130                 err(1, "malloc");
 131         ifmr.ifm_ulist = media_list;
 132
 133         if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0)
 134                 err(1, "SIOCGIFMEDIA");
 135
 136         printf("\tmedia: ");
 137         print_media_word(ifmr.ifm_current, 1);
 138         if (ifmr.ifm_active != ifmr.ifm_current) {
 139                 putchar(' ');
 140                 putchar('(');
 141                 print_media_word(ifmr.ifm_active, 0);
 142                 putchar(')');
 143         }
 144
 145         putchar('\n');
 146
 147         if (ifmr.ifm_status & IFM_AVALID) {
 148                 printf("\tstatus: ");
 149                 switch (IFM_TYPE(ifmr.ifm_active)) {
 150                 case IFM_ETHER:
 151                 case IFM_ATM:
 152                         if (ifmr.ifm_status & IFM_ACTIVE)
 153                                 printf("active");
 154                         else
 155                                 printf("no carrier");
 156                         break;
 157
 158                 case IFM_FDDI:
 159                 case IFM_TOKEN:
 160                         if (ifmr.ifm_status & IFM_ACTIVE)
 161                                 printf("inserted");
 162                         else
 163                                 printf("no ring");
 164                         break;
 165
 166                 case IFM_IEEE80211:
 167                         if (ifmr.ifm_status & IFM_ACTIVE) {
 168                                 /* NB: only sta mode associates */
 169                                 if (IFM_OPMODE(ifmr.ifm_active) == IFM_IEEE80211_STA)
 170                                         printf("associated");
 171                                 else
 172                                         printf("running");
 173                         } else
 174                                 printf("no carrier");
 175                         break;
 176                 }
 177                 putchar('\n');
 178         }
 179
 180         if (ifmr.ifm_count > 0 && supmedia) {
 181                 printf("\tsupported media:\n");
 182                 for (i = 0; i < ifmr.ifm_count; i++) {
 183                         printf("\t\t");
 184                         print_media_word_ifconfig(media_list[i]);
 185                         putchar('\n');
 186                 }
 187         }
 188
 189         free(media_list);
 190 }
 191
 192 struct ifmediareq *
 193 ifmedia_getstate(int s)
 194 {
 195         static struct ifmediareq *ifmr = NULL;
 196         int *mwords;
 197
 198         if (ifmr == NULL) {
 199                 ifmr = (struct ifmediareq *)malloc(sizeof(struct ifmediareq));
 200                 if (ifmr == NULL)
 201                         err(1, "malloc");
 202
 203                 (void) memset(ifmr, 0, sizeof(struct ifmediareq));
 204                 (void) strncpy(ifmr->ifm_name, name,
 205                     sizeof(ifmr->ifm_name));
 206
 207                 ifmr->ifm_count = 0;
 208                 ifmr->ifm_ulist = NULL;
 209
 210                 /*
 211                  * We must go through the motions of reading all
 212                  * supported media because we need to know both
 213                  * the current media type and the top-level type.
 214                  */
 215
 216                 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)ifmr) < 0) {
 217                         err(1, "SIOCGIFMEDIA");
 218                 }
 219
 220                 if (ifmr->ifm_count == 0)
 221                         errx(1, "%s: no media types?", name);
 222
 223                 mwords = (int *)malloc(ifmr->ifm_count * sizeof(int));
 224                 if (mwords == NULL)
 225                         err(1, "malloc");
 226
 227                 ifmr->ifm_ulist = mwords;
 228                 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)ifmr) < 0)
 229                         err(1, "SIOCGIFMEDIA");
 230         }
 231
 232         return ifmr;
 233 }
 234
 235 static void
 236 setifmediacallback(int s, void *arg)
 237 {
 238         struct ifmediareq *ifmr = (struct ifmediareq *)arg;
 239         static int did_it = 0;
 240
 241         if (!did_it) {
 242                 ifr.ifr_media = ifmr->ifm_current;
 243                 if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0)
 244                         err(1, "SIOCSIFMEDIA (media)");
 245                 free(ifmr->ifm_ulist);
 246                 free(ifmr);
 247                 did_it = 1;
 248         }
 249 }
 250
 251 static void
 252 setmedia(const char *val, int d, int s, const struct afswtch *afp)
 253 {
 254         struct ifmediareq *ifmr;
 255         int subtype;
 256
 257         ifmr = ifmedia_getstate(s);
 258
 259         /*
 260          * We are primarily concerned with the top-level type.
 261          * However, "current" may be only IFM_NONE, so we just look
 262          * for the top-level type in the first "supported type"
 263          * entry.
 264          *
 265          * (I'm assuming that all supported media types for a given
 266          * interface will be the same top-level type..)
 267          */
 268         subtype = get_media_subtype(IFM_TYPE(ifmr->ifm_ulist[0]), val);
 269
 270         strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
 271         ifr.ifr_media = (ifmr->ifm_current & IFM_IMASK) |
 272             IFM_TYPE(ifmr->ifm_ulist[0]) | subtype;
 273
 274         ifmr->ifm_current = ifr.ifr_media;
 275         callback_register(setifmediacallback, (void *)ifmr);
 276 }
 277
 278 static void
 279 setmediaopt(const char *val, int d, int s, const struct afswtch *afp)
 280 {
 281
 282         domediaopt(val, 0, s);
 283 }
 284
 285 static void
 286 unsetmediaopt(const char *val, int d, int s, const struct afswtch *afp)
 287 {
 288
 289         domediaopt(val, 1, s);
 290 }
 291
 292 static void
 293 domediaopt(const char *val, int clear, int s)
 294 {
 295         struct ifmediareq *ifmr;
 296         int options;
 297
 298         ifmr = ifmedia_getstate(s);
 299
 300         options = get_media_options(IFM_TYPE(ifmr->ifm_ulist[0]), val);
 301
 302         strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
 303         ifr.ifr_media = ifmr->ifm_current;
 304         if (clear)
 305                 ifr.ifr_media &= ~options;
 306         else {
 307                 if (options & IFM_HDX) {
 308                         ifr.ifr_media &= ~IFM_FDX;
 309                         options &= ~IFM_HDX;
 310                 }
 311                 ifr.ifr_media |= options;
 312         }
 313         ifmr->ifm_current = ifr.ifr_media;
 314         callback_register(setifmediacallback, (void *)ifmr);
 315 }
 316
 317 static void
 318 setmediainst(const char *val, int d, int s, const struct afswtch *afp)
 319 {
 320         struct ifmediareq *ifmr;
 321         int inst;
 322
 323         ifmr = ifmedia_getstate(s);
 324
 325         inst = atoi(val);
 326         if (inst < 0 || inst > (int)IFM_INST_MAX)
 327                 errx(1, "invalid media instance: %s", val);
 328
 329         strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
 330         ifr.ifr_media = (ifmr->ifm_current & ~IFM_IMASK) | inst << IFM_ISHIFT;
 331
 332         ifmr->ifm_current = ifr.ifr_media;
 333         callback_register(setifmediacallback, (void *)ifmr);
 334 }
 335
 336 static void
 337 setmediamode(const char *val, int d, int s, const struct afswtch *afp)
 338 {
 339         struct ifmediareq *ifmr;
 340         int mode;
 341
 342         ifmr = ifmedia_getstate(s);
 343
 344         mode = get_media_mode(IFM_TYPE(ifmr->ifm_ulist[0]), val);
 345
 346         strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
 347         ifr.ifr_media = (ifmr->ifm_current & ~IFM_MMASK) | mode;
 348
 349         ifmr->ifm_current = ifr.ifr_media;
 350         callback_register(setifmediacallback, (void *)ifmr);
 351 }
 352
 353 /**********************************************************************
 354  * A good chunk of this is duplicated from sys/net/ifmedia.c
 355  **********************************************************************/
 356
 357 static struct ifmedia_description ifm_type_descriptions[] =
 358     IFM_TYPE_DESCRIPTIONS;
 359
 360 static struct ifmedia_description ifm_subtype_ethernet_descriptions[] =
 361     IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
 362
 363 static struct ifmedia_description ifm_subtype_ethernet_aliases[] =
 364     IFM_SUBTYPE_ETHERNET_ALIASES;
 365
 366 static struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] =
 367     IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS;
 368
 369 static struct ifmedia_description ifm_subtype_tokenring_descriptions[] =
 370     IFM_SUBTYPE_TOKENRING_DESCRIPTIONS;
 371
 372 static struct ifmedia_description ifm_subtype_tokenring_aliases[] =
 373     IFM_SUBTYPE_TOKENRING_ALIASES;
 374
 375 static struct ifmedia_description ifm_subtype_tokenring_option_descriptions[] =
 376     IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS;
 377
 378 static struct ifmedia_description ifm_subtype_fddi_descriptions[] =
 379     IFM_SUBTYPE_FDDI_DESCRIPTIONS;
 380
 381 static struct ifmedia_description ifm_subtype_fddi_aliases[] =
 382     IFM_SUBTYPE_FDDI_ALIASES;
 383
 384 static struct ifmedia_description ifm_subtype_fddi_option_descriptions[] =
 385     IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS;
 386
 387 static struct ifmedia_description ifm_subtype_ieee80211_descriptions[] =
 388     IFM_SUBTYPE_IEEE80211_DESCRIPTIONS;
 389
 390 static struct ifmedia_description ifm_subtype_ieee80211_aliases[] =
 391     IFM_SUBTYPE_IEEE80211_ALIASES;
 392
 393 static struct ifmedia_description ifm_subtype_ieee80211_option_descriptions[] =
 394     IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS;
 395
 396 struct ifmedia_description ifm_subtype_ieee80211_mode_descriptions[] =
 397     IFM_SUBTYPE_IEEE80211_MODE_DESCRIPTIONS;
 398
 399 struct ifmedia_description ifm_subtype_ieee80211_mode_aliases[] =
 400     IFM_SUBTYPE_IEEE80211_MODE_ALIASES;
 401
 402 static struct ifmedia_description ifm_subtype_atm_descriptions[] =
 403     IFM_SUBTYPE_ATM_DESCRIPTIONS;
 404
 405 static struct ifmedia_description ifm_subtype_atm_aliases[] =
 406     IFM_SUBTYPE_ATM_ALIASES;
 407
 408 static struct ifmedia_description ifm_subtype_atm_option_descriptions[] =
 409     IFM_SUBTYPE_ATM_OPTION_DESCRIPTIONS;
 410
 411 static struct ifmedia_description ifm_subtype_shared_descriptions[] =
 412     IFM_SUBTYPE_SHARED_DESCRIPTIONS;
 413
 414 static struct ifmedia_description ifm_subtype_shared_aliases[] =
 415     IFM_SUBTYPE_SHARED_ALIASES;
 416
 417 static struct ifmedia_description ifm_shared_option_descriptions[] =
 418     IFM_SHARED_OPTION_DESCRIPTIONS;
 419
 420 static struct ifmedia_description ifm_shared_option_aliases[] =
 421     IFM_SHARED_OPTION_ALIASES;
 422
 423 struct ifmedia_type_to_subtype {
 424         struct {
 425                 struct ifmedia_description *desc;
 426                 int alias;
 427         } subtypes[5];
 428         struct {
 429                 struct ifmedia_description *desc;
 430                 int alias;
 431         } options[4];
 432         struct {
 433                 struct ifmedia_description *desc;
 434                 int alias;
 435         } modes[3];
 436 };
 437
 438 /* must be in the same order as IFM_TYPE_DESCRIPTIONS */
 439 static struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] = {
 440         {
 441                 {
 442                         { &ifm_subtype_shared_descriptions[0], 0 },
 443                         { &ifm_subtype_shared_aliases[0], 1 },
 444                         { &ifm_subtype_ethernet_descriptions[0], 0 },
 445                         { &ifm_subtype_ethernet_aliases[0], 1 },
 446                         { NULL, 0 },
 447                 },
 448                 {
 449                         { &ifm_shared_option_descriptions[0], 0 },
 450                         { &ifm_shared_option_aliases[0], 1 },
 451                         { &ifm_subtype_ethernet_option_descriptions[0], 0 },
 452                         { NULL, 0 },
 453                 },
 454                 {
 455                         { NULL, 0 },
 456                 },
 457         },
 458         {
 459                 {
 460                         { &ifm_subtype_shared_descriptions[0], 0 },
 461                         { &ifm_subtype_shared_aliases[0], 1 },
 462                         { &ifm_subtype_tokenring_descriptions[0], 0 },
 463                         { &ifm_subtype_tokenring_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_tokenring_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_fddi_descriptions[0], 0 },
 481                         { &ifm_subtype_fddi_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_fddi_option_descriptions[0], 0 },
 488                         { NULL, 0 },
 489                 },
 490                 {
 491                         { NULL, 0 },
 492                 },
 493         },
 494         {
 495                 {
 496                         { &ifm_subtype_shared_descriptions[0], 0 },
 497                         { &ifm_subtype_shared_aliases[0], 1 },
 498                         { &ifm_subtype_ieee80211_descriptions[0], 0 },
 499                         { &ifm_subtype_ieee80211_aliases[0], 1 },
 500                         { NULL, 0 },
 501                 },
 502                 {
 503                         { &ifm_shared_option_descriptions[0], 0 },
 504                         { &ifm_shared_option_aliases[0], 1 },
 505                         { &ifm_subtype_ieee80211_option_descriptions[0], 0 },
 506                         { NULL, 0 },
 507                 },
 508                 {
 509                         { &ifm_subtype_ieee80211_mode_descriptions[0], 0 },
 510                         { &ifm_subtype_ieee80211_mode_aliases[0], 0 },
 511                         { NULL, 0 },
 512                 },
 513         },
 514         {
 515                 {
 516                         { &ifm_subtype_shared_descriptions[0], 0 },
 517                         { &ifm_subtype_shared_aliases[0], 1 },
 518                         { &ifm_subtype_atm_descriptions[0], 0 },
 519                         { &ifm_subtype_atm_aliases[0], 1 },
 520                         { NULL, 0 },
 521                 },
 522                 {
 523                         { &ifm_shared_option_descriptions[0], 0 },
 524                         { &ifm_shared_option_aliases[0], 1 },
 525                         { &ifm_subtype_atm_option_descriptions[0], 0 },
 526                         { NULL, 0 },
 527                 },
 528                 {
 529                         { NULL, 0 },
 530                 },
 531         },
 532 };
 533
 534 static int
 535 get_media_subtype(int type, const char *val)
 536 {
 537         struct ifmedia_description *desc;
 538         struct ifmedia_type_to_subtype *ttos;
 539         int rval, i;
 540
 541         /* Find the top-level interface type. */
 542         for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
 543             desc->ifmt_string != NULL; desc++, ttos++)
 544                 if (type == desc->ifmt_word)
 545                         break;
 546         if (desc->ifmt_string == NULL)
 547                 errx(1, "unknown media type 0x%x", type);
 548
 549         for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
 550                 rval = lookup_media_word(ttos->subtypes[i].desc, val);
 551                 if (rval != -1)
 552                         return (rval);
 553         }
 554         errx(1, "unknown media subtype: %s", val);
 555         /*NOTREACHED*/
 556 }
 557
 558 static int
 559 get_media_mode(int type, const char *val)
 560 {
 561         struct ifmedia_description *desc;
 562         struct ifmedia_type_to_subtype *ttos;
 563         int rval, i;
 564
 565         /* Find the top-level interface type. */
 566         for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
 567             desc->ifmt_string != NULL; desc++, ttos++)
 568                 if (type == desc->ifmt_word)
 569                         break;
 570         if (desc->ifmt_string == NULL)
 571                 errx(1, "unknown media mode 0x%x", type);
 572
 573         for (i = 0; ttos->modes[i].desc != NULL; i++) {
 574                 rval = lookup_media_word(ttos->modes[i].desc, val);
 575                 if (rval != -1)
 576                         return (rval);
 577         }
 578         return -1;
 579 }
 580
 581 static int
 582 get_media_options(int type, const char *val)
 583 {
 584         struct ifmedia_description *desc;
 585         struct ifmedia_type_to_subtype *ttos;
 586         char *optlist, *optptr;
 587         int option = 0, i, rval = 0;
 588
 589         /* We muck with the string, so copy it. */
 590         optlist = strdup(val);
 591         if (optlist == NULL)
 592                 err(1, "strdup");
 593
 594         /* Find the top-level interface type. */
 595         for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
 596             desc->ifmt_string != NULL; desc++, ttos++)
 597                 if (type == desc->ifmt_word)
 598                         break;
 599         if (desc->ifmt_string == NULL)
 600                 errx(1, "unknown media type 0x%x", type);
 601
 602         /*
 603          * Look up the options in the user-provided comma-separated
 604          * list.
 605          */
 606         optptr = optlist;
 607         for (; (optptr = strtok(optptr, ",")) != NULL; optptr = NULL) {
 608                 for (i = 0; ttos->options[i].desc != NULL; i++) {
 609                         option = lookup_media_word(ttos->options[i].desc, optptr);
 610                         if (option != -1)
 611                                 break;
 612                 }
 613                 if (option == 0)
 614                         errx(1, "unknown option: %s", optptr);
 615                 rval |= option;
 616         }
 617
 618         free(optlist);
 619         return (rval);
 620 }
 621
 622 static int
 623 lookup_media_word(struct ifmedia_description *desc, const char *val)
 624 {
 625
 626         for (; desc->ifmt_string != NULL; desc++)
 627                 if (strcasecmp(desc->ifmt_string, val) == 0)
 628                         return (desc->ifmt_word);
 629
 630         return (-1);
 631 }
 632
 633 static struct ifmedia_description *get_toptype_desc(int ifmw)
 634 {
 635         struct ifmedia_description *desc;
 636
 637         for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++)
 638                 if (IFM_TYPE(ifmw) == desc->ifmt_word)
 639                         break;
 640
 641         return desc;
 642 }
 643
 644 static struct ifmedia_type_to_subtype *get_toptype_ttos(int ifmw)
 645 {
 646         struct ifmedia_description *desc;
 647         struct ifmedia_type_to_subtype *ttos;
 648
 649         for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
 650             desc->ifmt_string != NULL; desc++, ttos++)
 651                 if (IFM_TYPE(ifmw) == desc->ifmt_word)
 652                         break;
 653
 654         return ttos;
 655 }
 656
 657 static struct ifmedia_description *get_subtype_desc(int ifmw,
 658     struct ifmedia_type_to_subtype *ttos)
 659 {
 660         int i;
 661         struct ifmedia_description *desc;
 662
 663         for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
 664                 if (ttos->subtypes[i].alias)
 665                         continue;
 666                 for (desc = ttos->subtypes[i].desc;
 667                     desc->ifmt_string != NULL; desc++) {
 668                         if (IFM_SUBTYPE(ifmw) == desc->ifmt_word)
 669                                 return desc;
 670                 }
 671         }
 672
 673         return NULL;
 674 }
 675
 676 static struct ifmedia_description *get_mode_desc(int ifmw,
 677     struct ifmedia_type_to_subtype *ttos)
 678 {
 679         int i;
 680         struct ifmedia_description *desc;
 681
 682         for (i = 0; ttos->modes[i].desc != NULL; i++) {
 683                 if (ttos->modes[i].alias)
 684                         continue;
 685                 for (desc = ttos->modes[i].desc;
 686                     desc->ifmt_string != NULL; desc++) {
 687                         if (IFM_MODE(ifmw) == desc->ifmt_word)
 688                                 return desc;
 689                 }
 690         }
 691
 692         return NULL;
 693 }
 694
 695 static void
 696 print_media_word(int ifmw, int print_toptype)
 697 {
 698         struct ifmedia_description *desc;
 699         struct ifmedia_type_to_subtype *ttos;
 700         int seen_option = 0, i;
 701
 702         /* Find the top-level interface type. */
 703         desc = get_toptype_desc(ifmw);
 704         ttos = get_toptype_ttos(ifmw);
 705         if (desc->ifmt_string == NULL) {
 706                 printf("<unknown type>");
 707                 return;
 708         } else if (print_toptype) {
 709                 printf("%s", desc->ifmt_string);
 710         }
 711
 712         /*
 713          * Don't print the top-level type; it's not like we can
 714          * change it, or anything.
 715          */
 716
 717         /* Find subtype. */
 718         desc = get_subtype_desc(ifmw, ttos);
 719         if (desc == NULL) {
 720                 printf("<unknown subtype>");
 721                 return;
 722         }
 723
 724         if (print_toptype)
 725                 putchar(' ');
 726
 727         printf("%s", desc->ifmt_string);
 728
 729         if (print_toptype) {
 730                 desc = get_mode_desc(ifmw, ttos);
 731                 if (desc != NULL && strcasecmp("autoselect", desc->ifmt_string))
 732                         printf(" mode %s", desc->ifmt_string);
 733         }
 734
 735         /* Find options. */
 736         for (i = 0; ttos->options[i].desc != NULL; i++) {
 737                 if (ttos->options[i].alias)
 738                         continue;
 739                 for (desc = ttos->options[i].desc;
 740                     desc->ifmt_string != NULL; desc++) {
 741                         if (ifmw & desc->ifmt_word) {
 742                                 if (seen_option == 0)
 743                                         printf(" <");
 744                                 printf("%s%s", seen_option++ ? "," : "",
 745                                     desc->ifmt_string);
 746                         }
 747                 }
 748         }
 749         printf("%s", seen_option ? ">" : "");
 750
 751         if (print_toptype && IFM_INST(ifmw) != 0)
 752                 printf(" instance %d", IFM_INST(ifmw));
 753 }
 754
 755 static void
 756 print_media_word_ifconfig(int ifmw)
 757 {
 758         struct ifmedia_description *desc;
 759         struct ifmedia_type_to_subtype *ttos;
 760         int seen_option = 0, i;
 761
 762         /* Find the top-level interface type. */
 763         desc = get_toptype_desc(ifmw);
 764         ttos = get_toptype_ttos(ifmw);
 765         if (desc->ifmt_string == NULL) {
 766                 printf("<unknown type>");
 767                 return;
 768         }
 769
 770         /*
 771          * Don't print the top-level type; it's not like we can
 772          * change it, or anything.
 773          */
 774
 775         /* Find subtype. */
 776         desc = get_subtype_desc(ifmw, ttos);
 777         if (desc == NULL) {
 778                 printf("<unknown subtype>");
 779                 return;
 780         }
 781
 782         printf("media %s", desc->ifmt_string);
 783
 784         desc = get_mode_desc(ifmw, ttos);
 785         if (desc != NULL)
 786                 printf(" mode %s", desc->ifmt_string);
 787
 788         /* Find options. */
 789         for (i = 0; ttos->options[i].desc != NULL; i++) {
 790                 if (ttos->options[i].alias)
 791                         continue;
 792                 for (desc = ttos->options[i].desc;
 793                     desc->ifmt_string != NULL; desc++) {
 794                         if (ifmw & desc->ifmt_word) {
 795                                 if (seen_option == 0)
 796                                         printf(" mediaopt ");
 797                                 printf("%s%s", seen_option++ ? "," : "",
 798                                     desc->ifmt_string);
 799                         }
 800                 }
 801         }
 802
 803         if (IFM_INST(ifmw) != 0)
 804                 printf(" instance %d", IFM_INST(ifmw));
 805 }
 806
 807 /**********************************************************************
 808  * ...until here.
 809  **********************************************************************/
 810
 811 static struct cmd media_cmds[] = {
 812         DEF_CMD_ARG("media",    setmedia),
 813         DEF_CMD_ARG("mode",     setmediamode),
 814         DEF_CMD_ARG("mediaopt", setmediaopt),
 815         DEF_CMD_ARG("-mediaopt",unsetmediaopt),
 816         DEF_CMD_ARG("inst",     setmediainst),
 817         DEF_CMD_ARG("instance", setmediainst),
 818 };
 819 static struct afswtch af_media = {
 820         .af_name        = "af_media",
 821         .af_af          = AF_UNSPEC,
 822         .af_other_status = media_status,
 823 };
 824
 825 static __constructor void
 826 ifmedia_ctor(void)
 827 {
 828 #define N(a)    (sizeof(a) / sizeof(a[0]))
 829         size_t i;
 830
 831         for (i = 0; i < N(media_cmds);  i++)
 832                 cmd_register(&media_cmds[i]);
 833         af_register(&af_media);
 834 #undef N
 835 }