1 /*- 2 * Copyright (c) 2008 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD: head/sbin/ifconfig/regdomain.c 200587 2009-12-15 20:44:12Z gavin $ 26 */ 27 28 #include <sys/param.h> 29 #include <sys/types.h> 30 #include <sys/errno.h> 31 #include <sys/mman.h> 32 #include <sys/sbuf.h> 33 #include <sys/stat.h> 34 35 #include <stdio.h> 36 #include <string.h> 37 #include <ctype.h> 38 #include <fcntl.h> 39 #include <err.h> 40 #include <unistd.h> 41 42 #include <bsdxml.h> 43 44 #include "regdomain.h" 45 46 #include <netproto/802_11/_ieee80211.h> 47 48 #define MAXLEVEL 20 49 50 struct mystate { 51 XML_Parser parser; 52 struct regdata *rdp; 53 struct regdomain *rd; /* current domain */ 54 struct netband *netband; /* current netband */ 55 struct freqband *freqband; /* current freqband */ 56 struct country *country; /* current country */ 57 netband_head *curband; /* current netband list */ 58 int level; 59 struct sbuf *sbuf[MAXLEVEL]; 60 int nident; 61 }; 62 63 static int 64 iseq(const char *a, const char *b) 65 { 66 return (strcasecmp(a, b) == 0); 67 } 68 69 static void 70 start_element(void *data, const char *name, const char **attr) 71 { 72 static netband_head bands_unknown; /* marker for unknown netband */ 73 struct mystate *mt; 74 const void *id, *ref, *mode; 75 int i; 76 77 mt = data; 78 if (++mt->level == MAXLEVEL) { 79 /* XXX force parser to abort */ 80 return; 81 } 82 mt->sbuf[mt->level] = sbuf_new_auto(); 83 id = ref = mode = NULL; 84 for (i = 0; attr[i] != NULL; i += 2) { 85 if (iseq(attr[i], "id")) { 86 id = attr[i+1]; 87 } else if (iseq(attr[i], "ref")) { 88 ref = attr[i+1]; 89 } else if (iseq(attr[i], "mode")) { 90 mode = attr[i+1]; 91 } else 92 printf("%*.*s[%s = %s]\n", mt->level + 1, 93 mt->level + 1, "", attr[i], attr[i+1]); 94 } 95 if (iseq(name, "rd") && mt->rd == NULL) { 96 if (mt->country == NULL) { 97 mt->rd = calloc(1, sizeof(struct regdomain)); 98 mt->rd->name = strdup(id); 99 mt->nident++; 100 LIST_INSERT_HEAD(&mt->rdp->domains, mt->rd, next); 101 } else 102 mt->country->rd = (void *)strdup(ref); 103 return; 104 } 105 if (iseq(name, "defcc") && mt->rd != NULL) { 106 mt->rd->cc = (void *)strdup(ref); 107 return; 108 } 109 if (iseq(name, "netband") && mt->curband == NULL && mt->rd != NULL) { 110 if (mode == NULL) { 111 warnx("no mode for netband at line %ld", 112 XML_GetCurrentLineNumber(mt->parser)); 113 return; 114 } 115 if (iseq(mode, "11b")) 116 mt->curband = &mt->rd->bands_11b; 117 else if (iseq(mode, "11g")) 118 mt->curband = &mt->rd->bands_11g; 119 else if (iseq(mode, "11a")) 120 mt->curband = &mt->rd->bands_11a; 121 else if (iseq(mode, "11ng")) 122 mt->curband = &mt->rd->bands_11ng; 123 else if (iseq(mode, "11na")) 124 mt->curband = &mt->rd->bands_11na; 125 else if (iseq(mode, "11ac")) 126 mt->curband = &mt->rd->bands_11ac; 127 else if (iseq(mode, "11acg")) 128 mt->curband = &mt->rd->bands_11acg; 129 else { 130 mt->curband = &bands_unknown; 131 warnx("unknown netband mode \"%s\" at line %ld", 132 __DECONST(char *, mode), 133 XML_GetCurrentLineNumber(mt->parser)); 134 } 135 return; 136 } 137 if (mt->curband == &bands_unknown) { 138 warnx("ignore \"%s\" of unknown netband at line %ld", 139 name, XML_GetCurrentLineNumber(mt->parser)); 140 return; 141 } 142 if (iseq(name, "band") && mt->netband == NULL) { 143 if (mt->curband == NULL) { 144 warnx("band without enclosing netband at line %ld", 145 XML_GetCurrentLineNumber(mt->parser)); 146 return; 147 } 148 mt->netband = calloc(1, sizeof(struct netband)); 149 LIST_INSERT_HEAD(mt->curband, mt->netband, next); 150 return; 151 } 152 if (iseq(name, "freqband") && mt->freqband == NULL && mt->netband != NULL) { 153 /* XXX handle inlines and merge into table? */ 154 if (mt->netband->band != NULL) { 155 warnx("duplicate freqband at line %ld ignored", 156 XML_GetCurrentLineNumber(mt->parser)); 157 /* XXX complain */ 158 } else 159 mt->netband->band = (void *)strdup(ref); 160 return; 161 } 162 163 if (iseq(name, "country") && mt->country == NULL) { 164 mt->country = calloc(1, sizeof(struct country)); 165 mt->country->isoname = strdup(id); 166 mt->country->code = NO_COUNTRY; 167 mt->nident++; 168 LIST_INSERT_HEAD(&mt->rdp->countries, mt->country, next); 169 return; 170 } 171 172 if (iseq(name, "freqband") && mt->freqband == NULL) { 173 mt->freqband = calloc(1, sizeof(struct freqband)); 174 mt->freqband->id = strdup(id); 175 mt->nident++; 176 LIST_INSERT_HEAD(&mt->rdp->freqbands, mt->freqband, next); 177 return; 178 } 179 } 180 181 static int 182 decode_flag(struct mystate *mt, const char *p, int len) 183 { 184 static const struct { 185 const char *name; 186 int len; 187 uint32_t value; 188 } flags[] = { 189 #define FLAG(x) { #x, sizeof(#x)-1, x } 190 FLAG(IEEE80211_CHAN_A), 191 FLAG(IEEE80211_CHAN_B), 192 FLAG(IEEE80211_CHAN_G), 193 FLAG(IEEE80211_CHAN_HT20), 194 FLAG(IEEE80211_CHAN_HT40), 195 FLAG(IEEE80211_CHAN_VHT20), 196 FLAG(IEEE80211_CHAN_VHT40), 197 FLAG(IEEE80211_CHAN_VHT80), 198 FLAG(IEEE80211_CHAN_VHT160), 199 /* 200 * XXX VHT80P80? This likely should be done by 201 * 80MHz chan logic in net80211 / ifconfig. 202 */ 203 FLAG(IEEE80211_CHAN_ST), 204 FLAG(IEEE80211_CHAN_TURBO), 205 FLAG(IEEE80211_CHAN_PASSIVE), 206 FLAG(IEEE80211_CHAN_DFS), 207 FLAG(IEEE80211_CHAN_CCK), 208 FLAG(IEEE80211_CHAN_OFDM), 209 FLAG(IEEE80211_CHAN_2GHZ), 210 FLAG(IEEE80211_CHAN_5GHZ), 211 FLAG(IEEE80211_CHAN_DYN), 212 FLAG(IEEE80211_CHAN_GFSK), 213 FLAG(IEEE80211_CHAN_GSM), 214 FLAG(IEEE80211_CHAN_STURBO), 215 FLAG(IEEE80211_CHAN_HALF), 216 FLAG(IEEE80211_CHAN_QUARTER), 217 FLAG(IEEE80211_CHAN_HT40U), 218 FLAG(IEEE80211_CHAN_HT40D), 219 FLAG(IEEE80211_CHAN_4MSXMIT), 220 FLAG(IEEE80211_CHAN_NOADHOC), 221 FLAG(IEEE80211_CHAN_NOHOSTAP), 222 FLAG(IEEE80211_CHAN_11D), 223 FLAG(IEEE80211_CHAN_FHSS), 224 FLAG(IEEE80211_CHAN_PUREG), 225 FLAG(IEEE80211_CHAN_108A), 226 FLAG(IEEE80211_CHAN_108G), 227 #undef FLAG 228 { "ECM", 3, REQ_ECM }, 229 { "INDOOR", 6, REQ_INDOOR }, 230 { "OUTDOOR", 7, REQ_OUTDOOR }, 231 }; 232 size_t i; 233 234 for (i = 0; i < nitems(flags); i++) 235 if (len == flags[i].len && iseq(p, flags[i].name)) 236 return flags[i].value; 237 warnx("unknown flag \"%.*s\" at line %ld ignored", 238 len, p, XML_GetCurrentLineNumber(mt->parser)); 239 return 0; 240 } 241 242 static void 243 end_element(void *data, const char *name) 244 { 245 struct mystate *mt; 246 int len; 247 char *p; 248 249 mt = data; 250 sbuf_finish(mt->sbuf[mt->level]); 251 p = sbuf_data(mt->sbuf[mt->level]); 252 len = sbuf_len(mt->sbuf[mt->level]); 253 254 /* <freqband>...</freqband> */ 255 if (iseq(name, "freqstart") && mt->freqband != NULL) { 256 mt->freqband->freqStart = strtoul(p, NULL, 0); 257 goto done; 258 } 259 if (iseq(name, "freqend") && mt->freqband != NULL) { 260 mt->freqband->freqEnd = strtoul(p, NULL, 0); 261 goto done; 262 } 263 if (iseq(name, "chanwidth") && mt->freqband != NULL) { 264 mt->freqband->chanWidth = strtoul(p, NULL, 0); 265 goto done; 266 } 267 if (iseq(name, "chansep") && mt->freqband != NULL) { 268 mt->freqband->chanSep = strtoul(p, NULL, 0); 269 goto done; 270 } 271 if (iseq(name, "flags")) { 272 if (mt->freqband != NULL) 273 mt->freqband->flags |= decode_flag(mt, p, len); 274 else if (mt->netband != NULL) 275 mt->netband->flags |= decode_flag(mt, p, len); 276 else { 277 warnx("flags without freqband or netband at line %ld ignored", 278 XML_GetCurrentLineNumber(mt->parser)); 279 } 280 goto done; 281 } 282 283 /* <rd> ... </rd> */ 284 if (iseq(name, "name") && mt->rd != NULL) { 285 mt->rd->name = strdup(p); 286 goto done; 287 } 288 if (iseq(name, "sku") && mt->rd != NULL) { 289 mt->rd->sku = strtoul(p, NULL, 0); 290 goto done; 291 } 292 if (iseq(name, "netband") && mt->rd != NULL) { 293 mt->curband = NULL; 294 goto done; 295 } 296 297 /* <band> ... </band> */ 298 if (iseq(name, "freqband") && mt->netband != NULL) { 299 /* XXX handle inline freqbands */ 300 goto done; 301 } 302 if (iseq(name, "maxpower") && mt->netband != NULL) { 303 mt->netband->maxPower = strtoul(p, NULL, 0); 304 goto done; 305 } 306 if (iseq(name, "maxpowerdfs") && mt->netband != NULL) { 307 mt->netband->maxPowerDFS = strtoul(p, NULL, 0); 308 goto done; 309 } 310 if (iseq(name, "maxantgain") && mt->netband != NULL) { 311 mt->netband->maxAntGain = strtoul(p, NULL, 0); 312 goto done; 313 } 314 315 /* <country>...</country> */ 316 if (iseq(name, "isocc") && mt->country != NULL) { 317 mt->country->code = strtoul(p, NULL, 0); 318 goto done; 319 } 320 if (iseq(name, "name") && mt->country != NULL) { 321 mt->country->name = strdup(p); 322 goto done; 323 } 324 325 if (len != 0) { 326 warnx("unexpected XML token \"%s\" data \"%s\" at line %ld", 327 name, p, XML_GetCurrentLineNumber(mt->parser)); 328 /* XXX goto done? */ 329 } 330 /* </freqband> */ 331 if (iseq(name, "freqband") && mt->freqband != NULL) { 332 /* XXX must have start/end frequencies */ 333 /* XXX must have channel width/sep */ 334 mt->freqband = NULL; 335 goto done; 336 } 337 /* </rd> */ 338 if (iseq(name, "rd") && mt->rd != NULL) { 339 mt->rd = NULL; 340 goto done; 341 } 342 /* </band> */ 343 if (iseq(name, "band") && mt->netband != NULL) { 344 if (mt->netband->band == NULL) { 345 warnx("no freqbands for band at line %ld", 346 XML_GetCurrentLineNumber(mt->parser)); 347 } 348 if (mt->netband->maxPower == 0) { 349 warnx("no maxpower for band at line %ld", 350 XML_GetCurrentLineNumber(mt->parser)); 351 } 352 /* default max power w/ DFS to max power */ 353 if (mt->netband->maxPowerDFS == 0) 354 mt->netband->maxPowerDFS = mt->netband->maxPower; 355 mt->netband = NULL; 356 goto done; 357 } 358 /* </netband> */ 359 if (iseq(name, "netband") && mt->netband != NULL) { 360 mt->curband = NULL; 361 goto done; 362 } 363 /* </country> */ 364 if (iseq(name, "country") && mt->country != NULL) { 365 if (mt->country->code == NO_COUNTRY) { 366 warnx("no ISO cc for country at line %ld", 367 XML_GetCurrentLineNumber(mt->parser)); 368 } 369 if (mt->country->name == NULL) { 370 warnx("no name for country at line %ld", 371 XML_GetCurrentLineNumber(mt->parser)); 372 } 373 if (mt->country->rd == NULL) { 374 warnx("no regdomain reference for country at line %ld", 375 XML_GetCurrentLineNumber(mt->parser)); 376 } 377 mt->country = NULL; 378 goto done; 379 } 380 done: 381 sbuf_delete(mt->sbuf[mt->level]); 382 mt->sbuf[mt->level--] = NULL; 383 } 384 385 static void 386 char_data(void *data, const XML_Char *s, int len) 387 { 388 struct mystate *mt; 389 const char *b, *e; 390 391 mt = data; 392 393 b = s; 394 e = s + len-1; 395 for (; isspace(*b) && b < e; b++) 396 ; 397 for (; isspace(*e) && e > b; e++) 398 ; 399 if (e != b || (*b != '\0' && !isspace(*b))) 400 sbuf_bcat(mt->sbuf[mt->level], b, e-b+1); 401 } 402 403 static void * 404 findid(struct regdata *rdp, const void *id, enum IdentType type) 405 { 406 struct ident *ip; 407 408 for (ip = rdp->ident; ip->id != NULL; ip++) 409 if (ip->type == type && iseq(ip->id, id)) 410 return ip->p; 411 return NULL; 412 } 413 414 /* 415 * Parse an regdomain XML configuration and build the internal representation. 416 */ 417 int 418 lib80211_regdomain_readconfig(struct regdata *rdp, const void *p, size_t len) 419 { 420 struct mystate *mt; 421 struct regdomain *dp; 422 struct country *cp; 423 struct freqband *fp; 424 struct netband *nb; 425 const void *id; 426 int i, errors; 427 428 memset(rdp, 0, sizeof(struct regdata)); 429 mt = calloc(1, sizeof(struct mystate)); 430 if (mt == NULL) 431 return ENOMEM; 432 /* parse the XML input */ 433 mt->rdp = rdp; 434 mt->parser = XML_ParserCreate(NULL); 435 XML_SetUserData(mt->parser, mt); 436 XML_SetElementHandler(mt->parser, start_element, end_element); 437 XML_SetCharacterDataHandler(mt->parser, char_data); 438 if (XML_Parse(mt->parser, p, len, 1) != XML_STATUS_OK) { 439 warnx("%s: %s at line %ld", __func__, 440 XML_ErrorString(XML_GetErrorCode(mt->parser)), 441 XML_GetCurrentLineNumber(mt->parser)); 442 return -1; 443 } 444 XML_ParserFree(mt->parser); 445 446 /* setup the identifer table */ 447 rdp->ident = calloc(sizeof(struct ident), mt->nident + 1); 448 if (rdp->ident == NULL) 449 return ENOMEM; 450 free(mt); 451 452 errors = 0; 453 i = 0; 454 LIST_FOREACH(dp, &rdp->domains, next) { 455 rdp->ident[i].id = dp->name; 456 rdp->ident[i].p = dp; 457 rdp->ident[i].type = DOMAIN; 458 i++; 459 } 460 LIST_FOREACH(fp, &rdp->freqbands, next) { 461 rdp->ident[i].id = fp->id; 462 rdp->ident[i].p = fp; 463 rdp->ident[i].type = FREQBAND; 464 i++; 465 } 466 LIST_FOREACH(cp, &rdp->countries, next) { 467 rdp->ident[i].id = cp->isoname; 468 rdp->ident[i].p = cp; 469 rdp->ident[i].type = COUNTRY; 470 i++; 471 } 472 473 /* patch references */ 474 LIST_FOREACH(dp, &rdp->domains, next) { 475 if (dp->cc != NULL) { 476 id = dp->cc; 477 dp->cc = findid(rdp, id, COUNTRY); 478 if (dp->cc == NULL) { 479 warnx("undefined country \"%s\"", 480 __DECONST(char *, id)); 481 errors++; 482 } 483 free(__DECONST(char *, id)); 484 } 485 LIST_FOREACH(nb, &dp->bands_11b, next) { 486 id = findid(rdp, nb->band, FREQBAND); 487 if (id == NULL) { 488 warnx("undefined 11b band \"%s\"", 489 __DECONST(char *, nb->band)); 490 errors++; 491 } 492 nb->band = id; 493 } 494 LIST_FOREACH(nb, &dp->bands_11g, next) { 495 id = findid(rdp, nb->band, FREQBAND); 496 if (id == NULL) { 497 warnx("undefined 11g band \"%s\"", 498 __DECONST(char *, nb->band)); 499 errors++; 500 } 501 nb->band = id; 502 } 503 LIST_FOREACH(nb, &dp->bands_11a, next) { 504 id = findid(rdp, nb->band, FREQBAND); 505 if (id == NULL) { 506 warnx("undefined 11a band \"%s\"", 507 __DECONST(char *, nb->band)); 508 errors++; 509 } 510 nb->band = id; 511 } 512 LIST_FOREACH(nb, &dp->bands_11ng, next) { 513 id = findid(rdp, nb->band, FREQBAND); 514 if (id == NULL) { 515 warnx("undefined 11ng band \"%s\"", 516 __DECONST(char *, nb->band)); 517 errors++; 518 } 519 nb->band = id; 520 } 521 LIST_FOREACH(nb, &dp->bands_11na, next) { 522 id = findid(rdp, nb->band, FREQBAND); 523 if (id == NULL) { 524 warnx("undefined 11na band \"%s\"", 525 __DECONST(char *, nb->band)); 526 errors++; 527 } 528 nb->band = id; 529 } 530 LIST_FOREACH(nb, &dp->bands_11ac, next) { 531 id = findid(rdp, nb->band, FREQBAND); 532 if (id == NULL) { 533 warnx("undefined 11ac band \"%s\"", 534 __DECONST(char *, nb->band)); 535 errors++; 536 } 537 nb->band = id; 538 } 539 LIST_FOREACH(nb, &dp->bands_11acg, next) { 540 id = findid(rdp, nb->band, FREQBAND); 541 if (id == NULL) { 542 warnx("undefined 11acg band \"%s\"", 543 __DECONST(char *, nb->band)); 544 errors++; 545 } 546 nb->band = id; 547 } 548 } 549 LIST_FOREACH(cp, &rdp->countries, next) { 550 id = cp->rd; 551 cp->rd = findid(rdp, id, DOMAIN); 552 if (cp->rd == NULL) { 553 warnx("undefined country \"%s\"", 554 __DECONST(char *, id)); 555 errors++; 556 } 557 free(__DECONST(char *, id)); 558 } 559 560 return errors ? EINVAL : 0; 561 } 562 563 static void 564 cleanup_bands(netband_head *head) 565 { 566 struct netband *nb; 567 568 for (;;) { 569 nb = LIST_FIRST(head); 570 if (nb == NULL) 571 break; 572 LIST_REMOVE(nb, next); 573 free(nb); 574 } 575 } 576 577 /* 578 * Cleanup state/resources for a previously parsed regdomain database. 579 */ 580 void 581 lib80211_regdomain_cleanup(struct regdata *rdp) 582 { 583 584 free(rdp->ident); 585 rdp->ident = NULL; 586 for (;;) { 587 struct regdomain *dp = LIST_FIRST(&rdp->domains); 588 if (dp == NULL) 589 break; 590 LIST_REMOVE(dp, next); 591 cleanup_bands(&dp->bands_11b); 592 cleanup_bands(&dp->bands_11g); 593 cleanup_bands(&dp->bands_11a); 594 cleanup_bands(&dp->bands_11ng); 595 cleanup_bands(&dp->bands_11na); 596 cleanup_bands(&dp->bands_11ac); 597 cleanup_bands(&dp->bands_11acg); 598 if (dp->name != NULL) 599 free(__DECONST(char *, dp->name)); 600 } 601 for (;;) { 602 struct country *cp = LIST_FIRST(&rdp->countries); 603 if (cp == NULL) 604 break; 605 LIST_REMOVE(cp, next); 606 if (cp->name != NULL) 607 free(__DECONST(char *, cp->name)); 608 free(cp); 609 } 610 for (;;) { 611 struct freqband *fp = LIST_FIRST(&rdp->freqbands); 612 if (fp == NULL) 613 break; 614 LIST_REMOVE(fp, next); 615 free(fp); 616 } 617 } 618 619 struct regdata * 620 lib80211_alloc_regdata(void) 621 { 622 struct regdata *rdp; 623 struct stat sb; 624 void *xml; 625 int fd; 626 627 rdp = calloc(1, sizeof(struct regdata)); 628 629 fd = open(_PATH_REGDOMAIN, O_RDONLY); 630 if (fd < 0) { 631 #ifdef DEBUG 632 warn("%s: open(%s)", __func__, _PATH_REGDOMAIN); 633 #endif 634 free(rdp); 635 return NULL; 636 } 637 if (fstat(fd, &sb) < 0) { 638 #ifdef DEBUG 639 warn("%s: fstat(%s)", __func__, _PATH_REGDOMAIN); 640 #endif 641 close(fd); 642 free(rdp); 643 return NULL; 644 } 645 xml = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0); 646 if (xml == MAP_FAILED) { 647 #ifdef DEBUG 648 warn("%s: mmap", __func__); 649 #endif 650 close(fd); 651 free(rdp); 652 return NULL; 653 } 654 if (lib80211_regdomain_readconfig(rdp, xml, sb.st_size) != 0) { 655 #ifdef DEBUG 656 warn("%s: error reading regulatory database", __func__); 657 #endif 658 munmap(xml, sb.st_size); 659 close(fd); 660 free(rdp); 661 return NULL; 662 } 663 munmap(xml, sb.st_size); 664 close(fd); 665 666 return rdp; 667 } 668 669 void 670 lib80211_free_regdata(struct regdata *rdp) 671 { 672 lib80211_regdomain_cleanup(rdp); 673 free(rdp); 674 } 675 676 /* 677 * Lookup a regdomain by SKU. 678 */ 679 const struct regdomain * 680 lib80211_regdomain_findbysku(const struct regdata *rdp, enum RegdomainCode sku) 681 { 682 const struct regdomain *dp; 683 684 LIST_FOREACH(dp, &rdp->domains, next) { 685 if (dp->sku == sku) 686 return dp; 687 } 688 return NULL; 689 } 690 691 /* 692 * Lookup a regdomain by name. 693 */ 694 const struct regdomain * 695 lib80211_regdomain_findbyname(const struct regdata *rdp, const char *name) 696 { 697 const struct regdomain *dp; 698 699 LIST_FOREACH(dp, &rdp->domains, next) { 700 if (iseq(dp->name, name)) 701 return dp; 702 } 703 return NULL; 704 } 705 706 /* 707 * Lookup a country by ISO country code. 708 */ 709 const struct country * 710 lib80211_country_findbycc(const struct regdata *rdp, enum ISOCountryCode cc) 711 { 712 const struct country *cp; 713 714 LIST_FOREACH(cp, &rdp->countries, next) { 715 if (cp->code == cc) 716 return cp; 717 } 718 return NULL; 719 } 720 721 /* 722 * Lookup a country by ISO/long name. 723 */ 724 const struct country * 725 lib80211_country_findbyname(const struct regdata *rdp, const char *name) 726 { 727 const struct country *cp; 728 int len; 729 730 LIST_FOREACH(cp, &rdp->countries, next) { 731 if (iseq(cp->isoname, name)) 732 return cp; 733 } 734 len = strlen(name); 735 LIST_FOREACH(cp, &rdp->countries, next) { 736 if (strncasecmp(cp->name, name, len) == 0) 737 return cp; 738 } 739 return NULL; 740 } 741