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