hostapd/config.c

   1 /*
   2  * hostapd / Configuration file
   3  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2007-2008, Intel Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #include "includes.h"
  17 #ifndef CONFIG_NATIVE_WINDOWS
  18 #include <grp.h>
  19 #endif /* CONFIG_NATIVE_WINDOWS */
  20
  21 #include "hostapd.h"
  22 #include "driver.h"
  23 #include "sha1.h"
  24 #include "eap_server/eap.h"
  25 #include "radius/radius_client.h"
  26 #include "wpa_common.h"
  27 #include "wpa.h"
  28 #include "uuid.h"
  29 #include "eap_common/eap_wsc_common.h"
  30
  31
  32 #define MAX_STA_COUNT 2007
  33
  34 extern struct wpa_driver_ops *hostapd_drivers[];
  35
  36
  37 static int hostapd_config_read_vlan_file(struct hostapd_bss_config *bss,
  38                                          const char *fname)
  39 {
  40         FILE *f;
  41         char buf[128], *pos, *pos2;
  42         int line = 0, vlan_id;
  43         struct hostapd_vlan *vlan;
  44
  45         f = fopen(fname, "r");
  46         if (!f) {
  47                 printf("VLAN file '%s' not readable.\n", fname);
  48                 return -1;
  49         }
  50
  51         while (fgets(buf, sizeof(buf), f)) {
  52                 line++;
  53
  54                 if (buf[0] == '#')
  55                         continue;
  56                 pos = buf;
  57                 while (*pos != '\0') {
  58                         if (*pos == '\n') {
  59                                 *pos = '\0';
  60                                 break;
  61                         }
  62                         pos++;
  63                 }
  64                 if (buf[0] == '\0')
  65                         continue;
  66
  67                 if (buf[0] == '*') {
  68                         vlan_id = VLAN_ID_WILDCARD;
  69                         pos = buf + 1;
  70                 } else {
  71                         vlan_id = strtol(buf, &pos, 10);
  72                         if (buf == pos || vlan_id < 1 ||
  73                             vlan_id > MAX_VLAN_ID) {
  74                                 printf("Invalid VLAN ID at line %d in '%s'\n",
  75                                        line, fname);
  76                                 fclose(f);
  77                                 return -1;
  78                         }
  79                 }
  80
  81                 while (*pos == ' ' || *pos == '\t')
  82                         pos++;
  83                 pos2 = pos;
  84                 while (*pos2 != ' ' && *pos2 != '\t' && *pos2 != '\0')
  85                         pos2++;
  86                 *pos2 = '\0';
  87                 if (*pos == '\0' || os_strlen(pos) > IFNAMSIZ) {
  88                         printf("Invalid VLAN ifname at line %d in '%s'\n",
  89                                line, fname);
  90                         fclose(f);
  91                         return -1;
  92                 }
  93
  94                 vlan = os_malloc(sizeof(*vlan));
  95                 if (vlan == NULL) {
  96                         printf("Out of memory while reading VLAN interfaces "
  97                                "from '%s'\n", fname);
  98                         fclose(f);
  99                         return -1;
 100                 }
 101
 102                 os_memset(vlan, 0, sizeof(*vlan));
 103                 vlan->vlan_id = vlan_id;
 104                 os_strlcpy(vlan->ifname, pos, sizeof(vlan->ifname));
 105                 if (bss->vlan_tail)
 106                         bss->vlan_tail->next = vlan;
 107                 else
 108                         bss->vlan = vlan;
 109                 bss->vlan_tail = vlan;
 110         }
 111
 112         fclose(f);
 113
 114         return 0;
 115 }
 116
 117
 118 static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
 119 {
 120         struct hostapd_vlan *vlan, *prev;
 121
 122         vlan = bss->vlan;
 123         prev = NULL;
 124         while (vlan) {
 125                 prev = vlan;
 126                 vlan = vlan->next;
 127                 os_free(prev);
 128         }
 129
 130         bss->vlan = NULL;
 131 }
 132
 133
 134 /* convert floats with one decimal place to value*10 int, i.e.,
 135  * "1.5" will return 15 */
 136 static int hostapd_config_read_int10(const char *value)
 137 {
 138         int i, d;
 139         char *pos;
 140
 141         i = atoi(value);
 142         pos = os_strchr(value, '.');
 143         d = 0;
 144         if (pos) {
 145                 pos++;
 146                 if (*pos >= '0' && *pos <= '9')
 147                         d = *pos - '0';
 148         }
 149
 150         return i * 10 + d;
 151 }
 152
 153
 154 static void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
 155 {
 156         bss->logger_syslog_level = HOSTAPD_LEVEL_INFO;
 157         bss->logger_stdout_level = HOSTAPD_LEVEL_INFO;
 158         bss->logger_syslog = (unsigned int) -1;
 159         bss->logger_stdout = (unsigned int) -1;
 160
 161         bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
 162
 163         bss->wep_rekeying_period = 300;
 164         /* use key0 in individual key and key1 in broadcast key */
 165         bss->broadcast_key_idx_min = 1;
 166         bss->broadcast_key_idx_max = 2;
 167         bss->eap_reauth_period = 3600;
 168
 169         bss->wpa_group_rekey = 600;
 170         bss->wpa_gmk_rekey = 86400;
 171         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
 172         bss->wpa_pairwise = WPA_CIPHER_TKIP;
 173         bss->wpa_group = WPA_CIPHER_TKIP;
 174         bss->rsn_pairwise = 0;
 175
 176         bss->max_num_sta = MAX_STA_COUNT;
 177
 178         bss->dtim_period = 2;
 179
 180         bss->radius_server_auth_port = 1812;
 181         bss->ap_max_inactivity = AP_MAX_INACTIVITY;
 182         bss->eapol_version = EAPOL_VERSION;
 183
 184         bss->max_listen_interval = 65535;
 185
 186 #ifdef CONFIG_IEEE80211W
 187         bss->assoc_ping_timeout = 1000;
 188         bss->assoc_ping_attempts = 3;
 189 #endif /* CONFIG_IEEE80211W */
 190 #ifdef EAP_FAST
 191          /* both anonymous and authenticated provisioning */
 192         bss->eap_fast_prov = 3;
 193         bss->pac_key_lifetime = 7 * 24 * 60 * 60;
 194         bss->pac_key_refresh_time = 1 * 24 * 60 * 60;
 195 #endif /* EAP_FAST */
 196 }
 197
 198
 199 static struct hostapd_config * hostapd_config_defaults(void)
 200 {
 201         struct hostapd_config *conf;
 202         struct hostapd_bss_config *bss;
 203         int i;
 204         const int aCWmin = 15, aCWmax = 1024;
 205         const struct hostapd_wme_ac_params ac_bk =
 206                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
 207         const struct hostapd_wme_ac_params ac_be =
 208                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
 209         const struct hostapd_wme_ac_params ac_vi = /* video traffic */
 210                 { aCWmin >> 1, aCWmin, 2, 3000 / 32, 1 };
 211         const struct hostapd_wme_ac_params ac_vo = /* voice traffic */
 212                 { aCWmin >> 2, aCWmin >> 1, 2, 1500 / 32, 1 };
 213
 214         conf = os_zalloc(sizeof(*conf));
 215         bss = os_zalloc(sizeof(*bss));
 216         if (conf == NULL || bss == NULL) {
 217                 printf("Failed to allocate memory for configuration data.\n");
 218                 os_free(conf);
 219                 os_free(bss);
 220                 return NULL;
 221         }
 222
 223         /* set default driver based on configuration */
 224         conf->driver = hostapd_drivers[0];
 225         if (conf->driver == NULL) {
 226                 printf("No driver wrappers registered!\n");
 227                 os_free(conf);
 228                 os_free(bss);
 229                 return NULL;
 230         }
 231
 232         bss->radius = os_zalloc(sizeof(*bss->radius));
 233         if (bss->radius == NULL) {
 234                 os_free(conf);
 235                 os_free(bss);
 236                 return NULL;
 237         }
 238
 239         hostapd_config_defaults_bss(bss);
 240
 241         conf->num_bss = 1;
 242         conf->bss = bss;
 243
 244         conf->beacon_int = 100;
 245         conf->rts_threshold = -1; /* use driver default: 2347 */
 246         conf->fragm_threshold = -1; /* user driver default: 2346 */
 247         conf->send_probe_response = 1;
 248         conf->bridge_packets = INTERNAL_BRIDGE_DO_NOT_CONTROL;
 249
 250         os_memcpy(conf->country, "US ", 3);
 251
 252         for (i = 0; i < NUM_TX_QUEUES; i++)
 253                 conf->tx_queue[i].aifs = -1; /* use hw default */
 254
 255         conf->wme_ac_params[0] = ac_be;
 256         conf->wme_ac_params[1] = ac_bk;
 257         conf->wme_ac_params[2] = ac_vi;
 258         conf->wme_ac_params[3] = ac_vo;
 259
 260 #ifdef CONFIG_IEEE80211N
 261         conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
 262 #endif /* CONFIG_IEEE80211N */
 263
 264         return conf;
 265 }
 266
 267
 268 int hostapd_mac_comp(const void *a, const void *b)
 269 {
 270         return os_memcmp(a, b, sizeof(macaddr));
 271 }
 272
 273
 274 int hostapd_mac_comp_empty(const void *a)
 275 {
 276         macaddr empty = { 0 };
 277         return os_memcmp(a, empty, sizeof(macaddr));
 278 }
 279
 280
 281 static int hostapd_acl_comp(const void *a, const void *b)
 282 {
 283         const struct mac_acl_entry *aa = a;
 284         const struct mac_acl_entry *bb = b;
 285         return os_memcmp(aa->addr, bb->addr, sizeof(macaddr));
 286 }
 287
 288
 289 static int hostapd_config_read_maclist(const char *fname,
 290                                        struct mac_acl_entry **acl, int *num)
 291 {
 292         FILE *f;
 293         char buf[128], *pos;
 294         int line = 0;
 295         u8 addr[ETH_ALEN];
 296         struct mac_acl_entry *newacl;
 297         int vlan_id;
 298
 299         if (!fname)
 300                 return 0;
 301
 302         f = fopen(fname, "r");
 303         if (!f) {
 304                 printf("MAC list file '%s' not found.\n", fname);
 305                 return -1;
 306         }
 307
 308         while (fgets(buf, sizeof(buf), f)) {
 309                 line++;
 310
 311                 if (buf[0] == '#')
 312                         continue;
 313                 pos = buf;
 314                 while (*pos != '\0') {
 315                         if (*pos == '\n') {
 316                                 *pos = '\0';
 317                                 break;
 318                         }
 319                         pos++;
 320                 }
 321                 if (buf[0] == '\0')
 322                         continue;
 323
 324                 if (hwaddr_aton(buf, addr)) {
 325                         printf("Invalid MAC address '%s' at line %d in '%s'\n",
 326                                buf, line, fname);
 327                         fclose(f);
 328                         return -1;
 329                 }
 330
 331                 vlan_id = 0;
 332                 pos = buf;
 333                 while (*pos != '\0' && *pos != ' ' && *pos != '\t')
 334                         pos++;
 335                 while (*pos == ' ' || *pos == '\t')
 336                         pos++;
 337                 if (*pos != '\0')
 338                         vlan_id = atoi(pos);
 339
 340                 newacl = os_realloc(*acl, (*num + 1) * sizeof(**acl));
 341                 if (newacl == NULL) {
 342                         printf("MAC list reallocation failed\n");
 343                         fclose(f);
 344                         return -1;
 345                 }
 346
 347                 *acl = newacl;
 348                 os_memcpy((*acl)[*num].addr, addr, ETH_ALEN);
 349                 (*acl)[*num].vlan_id = vlan_id;
 350                 (*num)++;
 351         }
 352
 353         fclose(f);
 354
 355         qsort(*acl, *num, sizeof(**acl), hostapd_acl_comp);
 356
 357         return 0;
 358 }
 359
 360
 361 static int hostapd_config_read_wpa_psk(const char *fname,
 362                                        struct hostapd_ssid *ssid)
 363 {
 364         FILE *f;
 365         char buf[128], *pos;
 366         int line = 0, ret = 0, len, ok;
 367         u8 addr[ETH_ALEN];
 368         struct hostapd_wpa_psk *psk;
 369
 370         if (!fname)
 371                 return 0;
 372
 373         f = fopen(fname, "r");
 374         if (!f) {
 375                 printf("WPA PSK file '%s' not found.\n", fname);
 376                 return -1;
 377         }
 378
 379         while (fgets(buf, sizeof(buf), f)) {
 380                 line++;
 381
 382                 if (buf[0] == '#')
 383                         continue;
 384                 pos = buf;
 385                 while (*pos != '\0') {
 386                         if (*pos == '\n') {
 387                                 *pos = '\0';
 388                                 break;
 389                         }
 390                         pos++;
 391                 }
 392                 if (buf[0] == '\0')
 393                         continue;
 394
 395                 if (hwaddr_aton(buf, addr)) {
 396                         printf("Invalid MAC address '%s' on line %d in '%s'\n",
 397                                buf, line, fname);
 398                         ret = -1;
 399                         break;
 400                 }
 401
 402                 psk = os_zalloc(sizeof(*psk));
 403                 if (psk == NULL) {
 404                         printf("WPA PSK allocation failed\n");
 405                         ret = -1;
 406                         break;
 407                 }
 408                 if (is_zero_ether_addr(addr))
 409                         psk->group = 1;
 410                 else
 411                         os_memcpy(psk->addr, addr, ETH_ALEN);
 412
 413                 pos = buf + 17;
 414                 if (pos == '\0') {
 415                         printf("No PSK on line %d in '%s'\n", line, fname);
 416                         os_free(psk);
 417                         ret = -1;
 418                         break;
 419                 }
 420                 pos++;
 421
 422                 ok = 0;
 423                 len = os_strlen(pos);
 424                 if (len == 64 && hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
 425                         ok = 1;
 426                 else if (len >= 8 && len < 64) {
 427                         pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
 428                                     4096, psk->psk, PMK_LEN);
 429                         ok = 1;
 430                 }
 431                 if (!ok) {
 432                         printf("Invalid PSK '%s' on line %d in '%s'\n",
 433                                pos, line, fname);
 434                         os_free(psk);
 435                         ret = -1;
 436                         break;
 437                 }
 438
 439                 psk->next = ssid->wpa_psk;
 440                 ssid->wpa_psk = psk;
 441         }
 442
 443         fclose(f);
 444
 445         return ret;
 446 }
 447
 448
 449 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
 450 {
 451         struct hostapd_ssid *ssid = &conf->ssid;
 452
 453         if (ssid->wpa_passphrase != NULL) {
 454                 if (ssid->wpa_psk != NULL) {
 455                         printf("Warning: both WPA PSK and passphrase set. "
 456                                "Using passphrase.\n");
 457                         os_free(ssid->wpa_psk);
 458                 }
 459                 ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 460                 if (ssid->wpa_psk == NULL) {
 461                         printf("Unable to alloc space for PSK\n");
 462                         return -1;
 463                 }
 464                 wpa_hexdump_ascii(MSG_DEBUG, "SSID",
 465                                   (u8 *) ssid->ssid, ssid->ssid_len);
 466                 wpa_hexdump_ascii(MSG_DEBUG, "PSK (ASCII passphrase)",
 467                                   (u8 *) ssid->wpa_passphrase,
 468                                   os_strlen(ssid->wpa_passphrase));
 469                 pbkdf2_sha1(ssid->wpa_passphrase,
 470                             ssid->ssid, ssid->ssid_len,
 471                             4096, ssid->wpa_psk->psk, PMK_LEN);
 472                 wpa_hexdump(MSG_DEBUG, "PSK (from passphrase)",
 473                             ssid->wpa_psk->psk, PMK_LEN);
 474                 ssid->wpa_psk->group = 1;
 475
 476                 os_memset(ssid->wpa_passphrase, 0,
 477                           os_strlen(ssid->wpa_passphrase));
 478                 os_free(ssid->wpa_passphrase);
 479                 ssid->wpa_passphrase = NULL;
 480         }
 481
 482         if (ssid->wpa_psk_file) {
 483                 if (hostapd_config_read_wpa_psk(ssid->wpa_psk_file,
 484                                                 &conf->ssid))
 485                         return -1;
 486         }
 487
 488         return 0;
 489 }
 490
 491
 492 #ifdef EAP_SERVER
 493 static int hostapd_config_read_eap_user(const char *fname,
 494                                         struct hostapd_bss_config *conf)
 495 {
 496         FILE *f;
 497         char buf[512], *pos, *start, *pos2;
 498         int line = 0, ret = 0, num_methods;
 499         struct hostapd_eap_user *user, *tail = NULL;
 500
 501         if (!fname)
 502                 return 0;
 503
 504         f = fopen(fname, "r");
 505         if (!f) {
 506                 printf("EAP user file '%s' not found.\n", fname);
 507                 return -1;
 508         }
 509
 510         /* Lines: "user" METHOD,METHOD2 "password" (password optional) */
 511         while (fgets(buf, sizeof(buf), f)) {
 512                 line++;
 513
 514                 if (buf[0] == '#')
 515                         continue;
 516                 pos = buf;
 517                 while (*pos != '\0') {
 518                         if (*pos == '\n') {
 519                                 *pos = '\0';
 520                                 break;
 521                         }
 522                         pos++;
 523                 }
 524                 if (buf[0] == '\0')
 525                         continue;
 526
 527                 user = NULL;
 528
 529                 if (buf[0] != '"' && buf[0] != '*') {
 530                         printf("Invalid EAP identity (no \" in start) on "
 531                                "line %d in '%s'\n", line, fname);
 532                         goto failed;
 533                 }
 534
 535                 user = os_zalloc(sizeof(*user));
 536                 if (user == NULL) {
 537                         printf("EAP user allocation failed\n");
 538                         goto failed;
 539                 }
 540                 user->force_version = -1;
 541
 542                 if (buf[0] == '*') {
 543                         pos = buf;
 544                 } else {
 545                         pos = buf + 1;
 546                         start = pos;
 547                         while (*pos != '"' && *pos != '\0')
 548                                 pos++;
 549                         if (*pos == '\0') {
 550                                 printf("Invalid EAP identity (no \" in end) on"
 551                                        " line %d in '%s'\n", line, fname);
 552                                 goto failed;
 553                         }
 554
 555                         user->identity = os_malloc(pos - start);
 556                         if (user->identity == NULL) {
 557                                 printf("Failed to allocate memory for EAP "
 558                                        "identity\n");
 559                                 goto failed;
 560                         }
 561                         os_memcpy(user->identity, start, pos - start);
 562                         user->identity_len = pos - start;
 563
 564                         if (pos[0] == '"' && pos[1] == '*') {
 565                                 user->wildcard_prefix = 1;
 566                                 pos++;
 567                         }
 568                 }
 569                 pos++;
 570                 while (*pos == ' ' || *pos == '\t')
 571                         pos++;
 572
 573                 if (*pos == '\0') {
 574                         printf("No EAP method on line %d in '%s'\n",
 575                                line, fname);
 576                         goto failed;
 577                 }
 578
 579                 start = pos;
 580                 while (*pos != ' ' && *pos != '\t' && *pos != '\0')
 581                         pos++;
 582                 if (*pos == '\0') {
 583                         pos = NULL;
 584                 } else {
 585                         *pos = '\0';
 586                         pos++;
 587                 }
 588                 num_methods = 0;
 589                 while (*start) {
 590                         char *pos3 = os_strchr(start, ',');
 591                         if (pos3) {
 592                                 *pos3++ = '\0';
 593                         }
 594                         user->methods[num_methods].method =
 595                                 eap_server_get_type(
 596                                         start,
 597                                         &user->methods[num_methods].vendor);
 598                         if (user->methods[num_methods].vendor ==
 599                             EAP_VENDOR_IETF &&
 600                             user->methods[num_methods].method == EAP_TYPE_NONE)
 601                         {
 602                                 if (os_strcmp(start, "TTLS-PAP") == 0) {
 603                                         user->ttls_auth |= EAP_TTLS_AUTH_PAP;
 604                                         goto skip_eap;
 605                                 }
 606                                 if (os_strcmp(start, "TTLS-CHAP") == 0) {
 607                                         user->ttls_auth |= EAP_TTLS_AUTH_CHAP;
 608                                         goto skip_eap;
 609                                 }
 610                                 if (os_strcmp(start, "TTLS-MSCHAP") == 0) {
 611                                         user->ttls_auth |=
 612                                                 EAP_TTLS_AUTH_MSCHAP;
 613                                         goto skip_eap;
 614                                 }
 615                                 if (os_strcmp(start, "TTLS-MSCHAPV2") == 0) {
 616                                         user->ttls_auth |=
 617                                                 EAP_TTLS_AUTH_MSCHAPV2;
 618                                         goto skip_eap;
 619                                 }
 620                                 printf("Unsupported EAP type '%s' on line %d "
 621                                        "in '%s'\n", start, line, fname);
 622                                 goto failed;
 623                         }
 624
 625                         num_methods++;
 626                         if (num_methods >= EAP_USER_MAX_METHODS)
 627                                 break;
 628                 skip_eap:
 629                         if (pos3 == NULL)
 630                                 break;
 631                         start = pos3;
 632                 }
 633                 if (num_methods == 0 && user->ttls_auth == 0) {
 634                         printf("No EAP types configured on line %d in '%s'\n",
 635                                line, fname);
 636                         goto failed;
 637                 }
 638
 639                 if (pos == NULL)
 640                         goto done;
 641
 642                 while (*pos == ' ' || *pos == '\t')
 643                         pos++;
 644                 if (*pos == '\0')
 645                         goto done;
 646
 647                 if (os_strncmp(pos, "[ver=0]", 7) == 0) {
 648                         user->force_version = 0;
 649                         goto done;
 650                 }
 651
 652                 if (os_strncmp(pos, "[ver=1]", 7) == 0) {
 653                         user->force_version = 1;
 654                         goto done;
 655                 }
 656
 657                 if (os_strncmp(pos, "[2]", 3) == 0) {
 658                         user->phase2 = 1;
 659                         goto done;
 660                 }
 661
 662                 if (*pos == '"') {
 663                         pos++;
 664                         start = pos;
 665                         while (*pos != '"' && *pos != '\0')
 666                                 pos++;
 667                         if (*pos == '\0') {
 668                                 printf("Invalid EAP password (no \" in end) "
 669                                        "on line %d in '%s'\n", line, fname);
 670                                 goto failed;
 671                         }
 672
 673                         user->password = os_malloc(pos - start);
 674                         if (user->password == NULL) {
 675                                 printf("Failed to allocate memory for EAP "
 676                                        "password\n");
 677                                 goto failed;
 678                         }
 679                         os_memcpy(user->password, start, pos - start);
 680                         user->password_len = pos - start;
 681
 682                         pos++;
 683                 } else if (os_strncmp(pos, "hash:", 5) == 0) {
 684                         pos += 5;
 685                         pos2 = pos;
 686                         while (*pos2 != '\0' && *pos2 != ' ' &&
 687                                *pos2 != '\t' && *pos2 != '#')
 688                                 pos2++;
 689                         if (pos2 - pos != 32) {
 690                                 printf("Invalid password hash on line %d in "
 691                                        "'%s'\n", line, fname);
 692                                 goto failed;
 693                         }
 694                         user->password = os_malloc(16);
 695                         if (user->password == NULL) {
 696                                 printf("Failed to allocate memory for EAP "
 697                                        "password hash\n");
 698                                 goto failed;
 699                         }
 700                         if (hexstr2bin(pos, user->password, 16) < 0) {
 701                                 printf("Invalid hash password on line %d in "
 702                                        "'%s'\n", line, fname);
 703                                 goto failed;
 704                         }
 705                         user->password_len = 16;
 706                         user->password_hash = 1;
 707                         pos = pos2;
 708                 } else {
 709                         pos2 = pos;
 710                         while (*pos2 != '\0' && *pos2 != ' ' &&
 711                                *pos2 != '\t' && *pos2 != '#')
 712                                 pos2++;
 713                         if ((pos2 - pos) & 1) {
 714                                 printf("Invalid hex password on line %d in "
 715                                        "'%s'\n", line, fname);
 716                                 goto failed;
 717                         }
 718                         user->password = os_malloc((pos2 - pos) / 2);
 719                         if (user->password == NULL) {
 720                                 printf("Failed to allocate memory for EAP "
 721                                        "password\n");
 722                                 goto failed;
 723                         }
 724                         if (hexstr2bin(pos, user->password,
 725                                        (pos2 - pos) / 2) < 0) {
 726                                 printf("Invalid hex password on line %d in "
 727                                        "'%s'\n", line, fname);
 728                                 goto failed;
 729                         }
 730                         user->password_len = (pos2 - pos) / 2;
 731                         pos = pos2;
 732                 }
 733
 734                 while (*pos == ' ' || *pos == '\t')
 735                         pos++;
 736                 if (os_strncmp(pos, "[2]", 3) == 0) {
 737                         user->phase2 = 1;
 738                 }
 739
 740         done:
 741                 if (tail == NULL) {
 742                         tail = conf->eap_user = user;
 743                 } else {
 744                         tail->next = user;
 745                         tail = user;
 746                 }
 747                 continue;
 748
 749         failed:
 750                 if (user) {
 751                         os_free(user->password);
 752                         os_free(user->identity);
 753                         os_free(user);
 754                 }
 755                 ret = -1;
 756                 break;
 757         }
 758
 759         fclose(f);
 760
 761         return ret;
 762 }
 763 #endif /* EAP_SERVER */
 764
 765
 766 static int
 767 hostapd_config_read_radius_addr(struct hostapd_radius_server **server,
 768                                 int *num_server, const char *val, int def_port,
 769                                 struct hostapd_radius_server **curr_serv)
 770 {
 771         struct hostapd_radius_server *nserv;
 772         int ret;
 773         static int server_index = 1;
 774
 775         nserv = os_realloc(*server, (*num_server + 1) * sizeof(*nserv));
 776         if (nserv == NULL)
 777                 return -1;
 778
 779         *server = nserv;
 780         nserv = &nserv[*num_server];
 781         (*num_server)++;
 782         (*curr_serv) = nserv;
 783
 784         os_memset(nserv, 0, sizeof(*nserv));
 785         nserv->port = def_port;
 786         ret = hostapd_parse_ip_addr(val, &nserv->addr);
 787         nserv->index = server_index++;
 788
 789         return ret;
 790 }
 791
 792
 793 static int hostapd_config_parse_key_mgmt(int line, const char *value)
 794 {
 795         int val = 0, last;
 796         char *start, *end, *buf;
 797
 798         buf = os_strdup(value);
 799         if (buf == NULL)
 800                 return -1;
 801         start = buf;
 802
 803         while (start != '\0') {
 804                 while (*start == ' ' || *start == '\t')
 805                         start++;
 806                 if (*start == '\0')
 807                         break;
 808                 end = start;
 809                 while (*end != ' ' && *end != '\t' && *end != '\0')
 810                         end++;
 811                 last = *end == '\0';
 812                 *end = '\0';
 813                 if (os_strcmp(start, "WPA-PSK") == 0)
 814                         val |= WPA_KEY_MGMT_PSK;
 815                 else if (os_strcmp(start, "WPA-EAP") == 0)
 816                         val |= WPA_KEY_MGMT_IEEE8021X;
 817 #ifdef CONFIG_IEEE80211R
 818                 else if (os_strcmp(start, "FT-PSK") == 0)
 819                         val |= WPA_KEY_MGMT_FT_PSK;
 820                 else if (os_strcmp(start, "FT-EAP") == 0)
 821                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 822 #endif /* CONFIG_IEEE80211R */
 823 #ifdef CONFIG_IEEE80211W
 824                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 825                         val |= WPA_KEY_MGMT_PSK_SHA256;
 826                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 827                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 828 #endif /* CONFIG_IEEE80211W */
 829                 else {
 830                         printf("Line %d: invalid key_mgmt '%s'\n",
 831                                line, start);
 832                         os_free(buf);
 833                         return -1;
 834                 }
 835
 836                 if (last)
 837                         break;
 838                 start = end + 1;
 839         }
 840
 841         os_free(buf);
 842         if (val == 0) {
 843                 printf("Line %d: no key_mgmt values configured.\n", line);
 844                 return -1;
 845         }
 846
 847         return val;
 848 }
 849
 850
 851 static int hostapd_config_parse_cipher(int line, const char *value)
 852 {
 853         int val = 0, last;
 854         char *start, *end, *buf;
 855
 856         buf = os_strdup(value);
 857         if (buf == NULL)
 858                 return -1;
 859         start = buf;
 860
 861         while (start != '\0') {
 862                 while (*start == ' ' || *start == '\t')
 863                         start++;
 864                 if (*start == '\0')
 865                         break;
 866                 end = start;
 867                 while (*end != ' ' && *end != '\t' && *end != '\0')
 868                         end++;
 869                 last = *end == '\0';
 870                 *end = '\0';
 871                 if (os_strcmp(start, "CCMP") == 0)
 872                         val |= WPA_CIPHER_CCMP;
 873                 else if (os_strcmp(start, "TKIP") == 0)
 874                         val |= WPA_CIPHER_TKIP;
 875                 else if (os_strcmp(start, "WEP104") == 0)
 876                         val |= WPA_CIPHER_WEP104;
 877                 else if (os_strcmp(start, "WEP40") == 0)
 878                         val |= WPA_CIPHER_WEP40;
 879                 else if (os_strcmp(start, "NONE") == 0)
 880                         val |= WPA_CIPHER_NONE;
 881                 else {
 882                         printf("Line %d: invalid cipher '%s'.", line, start);
 883                         os_free(buf);
 884                         return -1;
 885                 }
 886
 887                 if (last)
 888                         break;
 889                 start = end + 1;
 890         }
 891         os_free(buf);
 892
 893         if (val == 0) {
 894                 printf("Line %d: no cipher values configured.", line);
 895                 return -1;
 896         }
 897         return val;
 898 }
 899
 900
 901 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
 902                                     struct hostapd_config *conf)
 903 {
 904         if (bss->ieee802_1x && !bss->eap_server &&
 905             !bss->radius->auth_servers) {
 906                 printf("Invalid IEEE 802.1X configuration (no EAP "
 907                        "authenticator configured).\n");
 908                 return -1;
 909         }
 910
 911         if (bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
 912             bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
 913             bss->ssid.wpa_psk_file == NULL) {
 914                 printf("WPA-PSK enabled, but PSK or passphrase is not "
 915                        "configured.\n");
 916                 return -1;
 917         }
 918
 919         if (hostapd_mac_comp_empty(bss->bssid) != 0) {
 920                 size_t i;
 921
 922                 for (i = 0; i < conf->num_bss; i++) {
 923                         if ((&conf->bss[i] != bss) &&
 924                             (hostapd_mac_comp(conf->bss[i].bssid,
 925                                               bss->bssid) == 0)) {
 926                                 printf("Duplicate BSSID " MACSTR
 927                                        " on interface '%s' and '%s'.\n",
 928                                        MAC2STR(bss->bssid),
 929                                        conf->bss[i].iface, bss->iface);
 930                                 return -1;
 931                         }
 932                 }
 933         }
 934
 935 #ifdef CONFIG_IEEE80211R
 936         if ((bss->wpa_key_mgmt &
 937              (WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X)) &&
 938             (bss->nas_identifier == NULL ||
 939              os_strlen(bss->nas_identifier) < 1 ||
 940              os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
 941                 printf("FT (IEEE 802.11r) requires nas_identifier to be "
 942                        "configured as a 1..48 octet string\n");
 943                 return -1;
 944         }
 945 #endif /* CONFIG_IEEE80211R */
 946
 947         return 0;
 948 }
 949
 950
 951 static int hostapd_config_check(struct hostapd_config *conf)
 952 {
 953         size_t i;
 954
 955         for (i = 0; i < conf->num_bss; i++) {
 956                 if (hostapd_config_check_bss(&conf->bss[i], conf))
 957                         return -1;
 958         }
 959
 960         return 0;
 961 }
 962
 963
 964 static int hostapd_config_read_wep(struct hostapd_wep_keys *wep, int keyidx,
 965                                    char *val)
 966 {
 967         size_t len = os_strlen(val);
 968
 969         if (keyidx < 0 || keyidx > 3 || wep->key[keyidx] != NULL)
 970                 return -1;
 971
 972         if (val[0] == '"') {
 973                 if (len < 2 || val[len - 1] != '"')
 974                         return -1;
 975                 len -= 2;
 976                 wep->key[keyidx] = os_malloc(len);
 977                 if (wep->key[keyidx] == NULL)
 978                         return -1;
 979                 os_memcpy(wep->key[keyidx], val + 1, len);
 980                 wep->len[keyidx] = len;
 981         } else {
 982                 if (len & 1)
 983                         return -1;
 984                 len /= 2;
 985                 wep->key[keyidx] = os_malloc(len);
 986                 if (wep->key[keyidx] == NULL)
 987                         return -1;
 988                 wep->len[keyidx] = len;
 989                 if (hexstr2bin(val, wep->key[keyidx], len) < 0)
 990                         return -1;
 991         }
 992
 993         wep->keys_set++;
 994
 995         return 0;
 996 }
 997
 998
 999 static int hostapd_parse_rates(int **rate_list, char *val)
1000 {
1001         int *list;
1002         int count;
1003         char *pos, *end;
1004
1005         os_free(*rate_list);
1006         *rate_list = NULL;
1007
1008         pos = val;
1009         count = 0;
1010         while (*pos != '\0') {
1011                 if (*pos == ' ')
1012                         count++;
1013                 pos++;
1014         }
1015
1016         list = os_malloc(sizeof(int) * (count + 2));
1017         if (list == NULL)
1018                 return -1;
1019         pos = val;
1020         count = 0;
1021         while (*pos != '\0') {
1022                 end = os_strchr(pos, ' ');
1023                 if (end)
1024                         *end = '\0';
1025
1026                 list[count++] = atoi(pos);
1027                 if (!end)
1028                         break;
1029                 pos = end + 1;
1030         }
1031         list[count] = -1;
1032
1033         *rate_list = list;
1034         return 0;
1035 }
1036
1037
1038 static int hostapd_config_bss(struct hostapd_config *conf, const char *ifname)
1039 {
1040         struct hostapd_bss_config *bss;
1041
1042         if (*ifname == '\0')
1043                 return -1;
1044
1045         bss = os_realloc(conf->bss, (conf->num_bss + 1) *
1046                          sizeof(struct hostapd_bss_config));
1047         if (bss == NULL) {
1048                 printf("Failed to allocate memory for multi-BSS entry\n");
1049                 return -1;
1050         }
1051         conf->bss = bss;
1052
1053         bss = &(conf->bss[conf->num_bss]);
1054         os_memset(bss, 0, sizeof(*bss));
1055         bss->radius = os_zalloc(sizeof(*bss->radius));
1056         if (bss->radius == NULL) {
1057                 printf("Failed to allocate memory for multi-BSS RADIUS "
1058                        "data\n");
1059                 return -1;
1060         }
1061
1062         conf->num_bss++;
1063         conf->last_bss = bss;
1064
1065         hostapd_config_defaults_bss(bss);
1066         os_strlcpy(bss->iface, ifname, sizeof(bss->iface));
1067         os_memcpy(bss->ssid.vlan, bss->iface, IFNAMSIZ + 1);
1068
1069         return 0;
1070 }
1071
1072
1073 static int valid_cw(int cw)
1074 {
1075         return (cw == 1 || cw == 3 || cw == 7 || cw == 15 || cw == 31 ||
1076                 cw == 63 || cw == 127 || cw == 255 || cw == 511 || cw == 1023);
1077 }
1078
1079
1080 enum {
1081         IEEE80211_TX_QUEUE_DATA0 = 0, /* used for EDCA AC_VO data */
1082         IEEE80211_TX_QUEUE_DATA1 = 1, /* used for EDCA AC_VI data */
1083         IEEE80211_TX_QUEUE_DATA2 = 2, /* used for EDCA AC_BE data */
1084         IEEE80211_TX_QUEUE_DATA3 = 3, /* used for EDCA AC_BK data */
1085         IEEE80211_TX_QUEUE_DATA4 = 4,
1086         IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
1087         IEEE80211_TX_QUEUE_BEACON = 7
1088 };
1089
1090 static int hostapd_config_tx_queue(struct hostapd_config *conf, char *name,
1091                                    char *val)
1092 {
1093         int num;
1094         char *pos;
1095         struct hostapd_tx_queue_params *queue;
1096
1097         /* skip 'tx_queue_' prefix */
1098         pos = name + 9;
1099         if (os_strncmp(pos, "data", 4) == 0 &&
1100             pos[4] >= '0' && pos[4] <= '9' && pos[5] == '_') {
1101                 num = pos[4] - '0';
1102                 pos += 6;
1103         } else if (os_strncmp(pos, "after_beacon_", 13) == 0) {
1104                 num = IEEE80211_TX_QUEUE_AFTER_BEACON;
1105                 pos += 13;
1106         } else if (os_strncmp(pos, "beacon_", 7) == 0) {
1107                 num = IEEE80211_TX_QUEUE_BEACON;
1108                 pos += 7;
1109         } else {
1110                 printf("Unknown tx_queue name '%s'\n", pos);
1111                 return -1;
1112         }
1113
1114         queue = &conf->tx_queue[num];
1115
1116         if (os_strcmp(pos, "aifs") == 0) {
1117                 queue->aifs = atoi(val);
1118                 if (queue->aifs < 0 || queue->aifs > 255) {
1119                         printf("Invalid AIFS value %d\n", queue->aifs);
1120                         return -1;
1121                 }
1122         } else if (os_strcmp(pos, "cwmin") == 0) {
1123                 queue->cwmin = atoi(val);
1124                 if (!valid_cw(queue->cwmin)) {
1125                         printf("Invalid cwMin value %d\n", queue->cwmin);
1126                         return -1;
1127                 }
1128         } else if (os_strcmp(pos, "cwmax") == 0) {
1129                 queue->cwmax = atoi(val);
1130                 if (!valid_cw(queue->cwmax)) {
1131                         printf("Invalid cwMax value %d\n", queue->cwmax);
1132                         return -1;
1133                 }
1134         } else if (os_strcmp(pos, "burst") == 0) {
1135                 queue->burst = hostapd_config_read_int10(val);
1136         } else {
1137                 printf("Unknown tx_queue field '%s'\n", pos);
1138                 return -1;
1139         }
1140
1141         queue->configured = 1;
1142
1143         return 0;
1144 }
1145
1146
1147 static int hostapd_config_wme_ac(struct hostapd_config *conf, char *name,
1148                                    char *val)
1149 {
1150         int num, v;
1151         char *pos;
1152         struct hostapd_wme_ac_params *ac;
1153
1154         /* skip 'wme_ac_' prefix */
1155         pos = name + 7;
1156         if (os_strncmp(pos, "be_", 3) == 0) {
1157                 num = 0;
1158                 pos += 3;
1159         } else if (os_strncmp(pos, "bk_", 3) == 0) {
1160                 num = 1;
1161                 pos += 3;
1162         } else if (os_strncmp(pos, "vi_", 3) == 0) {
1163                 num = 2;
1164                 pos += 3;
1165         } else if (os_strncmp(pos, "vo_", 3) == 0) {
1166                 num = 3;
1167                 pos += 3;
1168         } else {
1169                 printf("Unknown wme name '%s'\n", pos);
1170                 return -1;
1171         }
1172
1173         ac = &conf->wme_ac_params[num];
1174
1175         if (os_strcmp(pos, "aifs") == 0) {
1176                 v = atoi(val);
1177                 if (v < 1 || v > 255) {
1178                         printf("Invalid AIFS value %d\n", v);
1179                         return -1;
1180                 }
1181                 ac->aifs = v;
1182         } else if (os_strcmp(pos, "cwmin") == 0) {
1183                 v = atoi(val);
1184                 if (v < 0 || v > 12) {
1185                         printf("Invalid cwMin value %d\n", v);
1186                         return -1;
1187                 }
1188                 ac->cwmin = v;
1189         } else if (os_strcmp(pos, "cwmax") == 0) {
1190                 v = atoi(val);
1191                 if (v < 0 || v > 12) {
1192                         printf("Invalid cwMax value %d\n", v);
1193                         return -1;
1194                 }
1195                 ac->cwmax = v;
1196         } else if (os_strcmp(pos, "txop_limit") == 0) {
1197                 v = atoi(val);
1198                 if (v < 0 || v > 0xffff) {
1199                         printf("Invalid txop value %d\n", v);
1200                         return -1;
1201                 }
1202                 ac->txopLimit = v;
1203         } else if (os_strcmp(pos, "acm") == 0) {
1204                 v = atoi(val);
1205                 if (v < 0 || v > 1) {
1206                         printf("Invalid acm value %d\n", v);
1207                         return -1;
1208                 }
1209                 ac->admission_control_mandatory = v;
1210         } else {
1211                 printf("Unknown wme_ac_ field '%s'\n", pos);
1212                 return -1;
1213         }
1214
1215         return 0;
1216 }
1217
1218
1219 #ifdef CONFIG_IEEE80211R
1220 static int add_r0kh(struct hostapd_bss_config *bss, char *value)
1221 {
1222         struct ft_remote_r0kh *r0kh;
1223         char *pos, *next;
1224
1225         r0kh = os_zalloc(sizeof(*r0kh));
1226         if (r0kh == NULL)
1227                 return -1;
1228
1229         /* 02:01:02:03:04:05 a.example.com 000102030405060708090a0b0c0d0e0f */
1230         pos = value;
1231         next = os_strchr(pos, ' ');
1232         if (next)
1233                 *next++ = '\0';
1234         if (next == NULL || hwaddr_aton(pos, r0kh->addr)) {
1235                 printf("Invalid R0KH MAC address: '%s'\n", pos);
1236                 os_free(r0kh);
1237                 return -1;
1238         }
1239
1240         pos = next;
1241         next = os_strchr(pos, ' ');
1242         if (next)
1243                 *next++ = '\0';
1244         if (next == NULL || next - pos > FT_R0KH_ID_MAX_LEN) {
1245                 printf("Invalid R0KH-ID: '%s'\n", pos);
1246                 os_free(r0kh);
1247                 return -1;
1248         }
1249         r0kh->id_len = next - pos - 1;
1250         os_memcpy(r0kh->id, pos, r0kh->id_len);
1251
1252         pos = next;
1253         if (hexstr2bin(pos, r0kh->key, sizeof(r0kh->key))) {
1254                 printf("Invalid R0KH key: '%s'\n", pos);
1255                 os_free(r0kh);
1256                 return -1;
1257         }
1258
1259         r0kh->next = bss->r0kh_list;
1260         bss->r0kh_list = r0kh;
1261
1262         return 0;
1263 }
1264
1265
1266 static int add_r1kh(struct hostapd_bss_config *bss, char *value)
1267 {
1268         struct ft_remote_r1kh *r1kh;
1269         char *pos, *next;
1270
1271         r1kh = os_zalloc(sizeof(*r1kh));
1272         if (r1kh == NULL)
1273                 return -1;
1274
1275         /* 02:01:02:03:04:05 02:01:02:03:04:05
1276          * 000102030405060708090a0b0c0d0e0f */
1277         pos = value;
1278         next = os_strchr(pos, ' ');
1279         if (next)
1280                 *next++ = '\0';
1281         if (next == NULL || hwaddr_aton(pos, r1kh->addr)) {
1282                 printf("Invalid R1KH MAC address: '%s'\n", pos);
1283                 os_free(r1kh);
1284                 return -1;
1285         }
1286
1287         pos = next;
1288         next = os_strchr(pos, ' ');
1289         if (next)
1290                 *next++ = '\0';
1291         if (next == NULL || hwaddr_aton(pos, r1kh->id)) {
1292                 printf("Invalid R1KH-ID: '%s'\n", pos);
1293                 os_free(r1kh);
1294                 return -1;
1295         }
1296
1297         pos = next;
1298         if (hexstr2bin(pos, r1kh->key, sizeof(r1kh->key))) {
1299                 printf("Invalid R1KH key: '%s'\n", pos);
1300                 os_free(r1kh);
1301                 return -1;
1302         }
1303
1304         r1kh->next = bss->r1kh_list;
1305         bss->r1kh_list = r1kh;
1306
1307         return 0;
1308 }
1309 #endif /* CONFIG_IEEE80211R */
1310
1311
1312 #ifdef CONFIG_IEEE80211N
1313 static int hostapd_config_ht_capab(struct hostapd_config *conf,
1314                                    const char *capab)
1315 {
1316         if (os_strstr(capab, "[LDPC]"))
1317                 conf->ht_capab |= HT_CAP_INFO_LDPC_CODING_CAP;
1318         if (os_strstr(capab, "[HT40-]")) {
1319                 conf->ht_capab |= HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
1320                 conf->secondary_channel = -1;
1321         }
1322         if (os_strstr(capab, "[HT40+]")) {
1323                 conf->ht_capab |= HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET;
1324                 conf->secondary_channel = 1;
1325         }
1326         if (os_strstr(capab, "[SMPS-STATIC]")) {
1327                 conf->ht_capab &= ~HT_CAP_INFO_SMPS_MASK;
1328                 conf->ht_capab |= HT_CAP_INFO_SMPS_STATIC;
1329         }
1330         if (os_strstr(capab, "[SMPS-DYNAMIC]")) {
1331                 conf->ht_capab &= ~HT_CAP_INFO_SMPS_MASK;
1332                 conf->ht_capab |= HT_CAP_INFO_SMPS_DYNAMIC;
1333         }
1334         if (os_strstr(capab, "[GF]"))
1335                 conf->ht_capab |= HT_CAP_INFO_GREEN_FIELD;
1336         if (os_strstr(capab, "[SHORT-GI-20]"))
1337                 conf->ht_capab |= HT_CAP_INFO_SHORT_GI20MHZ;
1338         if (os_strstr(capab, "[SHORT-GI-40]"))
1339                 conf->ht_capab |= HT_CAP_INFO_SHORT_GI40MHZ;
1340         if (os_strstr(capab, "[TX-STBC]"))
1341                 conf->ht_capab |= HT_CAP_INFO_TX_STBC;
1342         if (os_strstr(capab, "[RX-STBC1]")) {
1343                 conf->ht_capab &= ~HT_CAP_INFO_RX_STBC_MASK;
1344                 conf->ht_capab |= HT_CAP_INFO_RX_STBC_1;
1345         }
1346         if (os_strstr(capab, "[RX-STBC12]")) {
1347                 conf->ht_capab &= ~HT_CAP_INFO_RX_STBC_MASK;
1348                 conf->ht_capab |= HT_CAP_INFO_RX_STBC_12;
1349         }
1350         if (os_strstr(capab, "[RX-STBC123]")) {
1351                 conf->ht_capab &= ~HT_CAP_INFO_RX_STBC_MASK;
1352                 conf->ht_capab |= HT_CAP_INFO_RX_STBC_123;
1353         }
1354         if (os_strstr(capab, "[DELAYED-BA]"))
1355                 conf->ht_capab |= HT_CAP_INFO_DELAYED_BA;
1356         if (os_strstr(capab, "[MAX-AMSDU-7935]"))
1357                 conf->ht_capab |= HT_CAP_INFO_MAX_AMSDU_SIZE;
1358         if (os_strstr(capab, "[DSSS_CCK-40]"))
1359                 conf->ht_capab |= HT_CAP_INFO_DSSS_CCK40MHZ;
1360         if (os_strstr(capab, "[PSMP]"))
1361                 conf->ht_capab |= HT_CAP_INFO_PSMP_SUPP;
1362         if (os_strstr(capab, "[LSIG-TXOP-PROT]"))
1363                 conf->ht_capab |= HT_CAP_INFO_LSIG_TXOP_PROTECT_SUPPORT;
1364
1365         return 0;
1366 }
1367 #endif /* CONFIG_IEEE80211N */
1368
1369
1370 struct hostapd_config * hostapd_config_read(const char *fname)
1371 {
1372         struct hostapd_config *conf;
1373         struct hostapd_bss_config *bss;
1374         FILE *f;
1375         char buf[256], *pos;
1376         int line = 0;
1377         int errors = 0;
1378         int pairwise;
1379         size_t i;
1380
1381         f = fopen(fname, "r");
1382         if (f == NULL) {
1383                 printf("Could not open configuration file '%s' for reading.\n",
1384                        fname);
1385                 return NULL;
1386         }
1387
1388         conf = hostapd_config_defaults();
1389         if (conf == NULL) {
1390                 fclose(f);
1391                 return NULL;
1392         }
1393         bss = conf->last_bss = conf->bss;
1394
1395         while (fgets(buf, sizeof(buf), f)) {
1396                 bss = conf->last_bss;
1397                 line++;
1398
1399                 if (buf[0] == '#')
1400                         continue;
1401                 pos = buf;
1402                 while (*pos != '\0') {
1403                         if (*pos == '\n') {
1404                                 *pos = '\0';
1405                                 break;
1406                         }
1407                         pos++;
1408                 }
1409                 if (buf[0] == '\0')
1410                         continue;
1411
1412                 pos = os_strchr(buf, '=');
1413                 if (pos == NULL) {
1414                         printf("Line %d: invalid line '%s'\n", line, buf);
1415                         errors++;
1416                         continue;
1417                 }
1418                 *pos = '\0';
1419                 pos++;
1420
1421                 if (os_strcmp(buf, "interface") == 0) {
1422                         os_strlcpy(conf->bss[0].iface, pos,
1423                                    sizeof(conf->bss[0].iface));
1424                 } else if (os_strcmp(buf, "bridge") == 0) {
1425                         os_strlcpy(bss->bridge, pos, sizeof(bss->bridge));
1426                 } else if (os_strcmp(buf, "driver") == 0) {
1427                         int i;
1428                         /* clear to get error below if setting is invalid */
1429                         conf->driver = NULL;
1430                         for (i = 0; hostapd_drivers[i]; i++) {
1431                                 if (os_strcmp(pos, hostapd_drivers[i]->name) ==
1432                                     0) {
1433                                         conf->driver = hostapd_drivers[i];
1434                                         break;
1435                                 }
1436                         }
1437                         if (conf->driver == NULL) {
1438                                 printf("Line %d: invalid/unknown driver "
1439                                        "'%s'\n", line, pos);
1440                                 errors++;
1441                         }
1442                 } else if (os_strcmp(buf, "debug") == 0) {
1443                         wpa_printf(MSG_DEBUG, "Line %d: DEPRECATED: 'debug' "
1444                                    "configuration variable is not used "
1445                                    "anymore", line);
1446                 } else if (os_strcmp(buf, "logger_syslog_level") == 0) {
1447                         bss->logger_syslog_level = atoi(pos);
1448                 } else if (os_strcmp(buf, "logger_stdout_level") == 0) {
1449                         bss->logger_stdout_level = atoi(pos);
1450                 } else if (os_strcmp(buf, "logger_syslog") == 0) {
1451                         bss->logger_syslog = atoi(pos);
1452                 } else if (os_strcmp(buf, "logger_stdout") == 0) {
1453                         bss->logger_stdout = atoi(pos);
1454                 } else if (os_strcmp(buf, "dump_file") == 0) {
1455                         bss->dump_log_name = os_strdup(pos);
1456                 } else if (os_strcmp(buf, "ssid") == 0) {
1457                         bss->ssid.ssid_len = os_strlen(pos);
1458                         if (bss->ssid.ssid_len > HOSTAPD_MAX_SSID_LEN ||
1459                             bss->ssid.ssid_len < 1) {
1460                                 printf("Line %d: invalid SSID '%s'\n", line,
1461                                        pos);
1462                                 errors++;
1463                         } else {
1464                                 os_memcpy(bss->ssid.ssid, pos,
1465                                           bss->ssid.ssid_len);
1466                                 bss->ssid.ssid[bss->ssid.ssid_len] = '\0';
1467                                 bss->ssid.ssid_set = 1;
1468                         }
1469                 } else if (os_strcmp(buf, "macaddr_acl") == 0) {
1470                         bss->macaddr_acl = atoi(pos);
1471                         if (bss->macaddr_acl != ACCEPT_UNLESS_DENIED &&
1472                             bss->macaddr_acl != DENY_UNLESS_ACCEPTED &&
1473                             bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
1474                                 printf("Line %d: unknown macaddr_acl %d\n",
1475                                        line, bss->macaddr_acl);
1476                         }
1477                 } else if (os_strcmp(buf, "accept_mac_file") == 0) {
1478                         if (hostapd_config_read_maclist(pos, &bss->accept_mac,
1479                                                         &bss->num_accept_mac))
1480                         {
1481                                 printf("Line %d: Failed to read "
1482                                        "accept_mac_file '%s'\n",
1483                                        line, pos);
1484                                 errors++;
1485                         }
1486                 } else if (os_strcmp(buf, "deny_mac_file") == 0) {
1487                         if (hostapd_config_read_maclist(pos, &bss->deny_mac,
1488                                                         &bss->num_deny_mac))
1489                         {
1490                                 printf("Line %d: Failed to read "
1491                                        "deny_mac_file '%s'\n",
1492                                        line, pos);
1493                                 errors++;
1494                         }
1495                 } else if (os_strcmp(buf, "ap_max_inactivity") == 0) {
1496                         bss->ap_max_inactivity = atoi(pos);
1497                 } else if (os_strcmp(buf, "country_code") == 0) {
1498                         os_memcpy(conf->country, pos, 2);
1499                         /* FIX: make this configurable */
1500                         conf->country[2] = ' ';
1501                 } else if (os_strcmp(buf, "ieee80211d") == 0) {
1502                         conf->ieee80211d = atoi(pos);
1503                 } else if (os_strcmp(buf, "ieee8021x") == 0) {
1504                         bss->ieee802_1x = atoi(pos);
1505                 } else if (os_strcmp(buf, "eapol_version") == 0) {
1506                         bss->eapol_version = atoi(pos);
1507                         if (bss->eapol_version < 1 ||
1508                             bss->eapol_version > 2) {
1509                                 printf("Line %d: invalid EAPOL "
1510                                        "version (%d): '%s'.\n",
1511                                        line, bss->eapol_version, pos);
1512                                 errors++;
1513                         } else
1514                                 wpa_printf(MSG_DEBUG, "eapol_version=%d",
1515                                            bss->eapol_version);
1516 #ifdef EAP_SERVER
1517                 } else if (os_strcmp(buf, "eap_authenticator") == 0) {
1518                         bss->eap_server = atoi(pos);
1519                         printf("Line %d: obsolete eap_authenticator used; "
1520                                "this has been renamed to eap_server\n", line);
1521                 } else if (os_strcmp(buf, "eap_server") == 0) {
1522                         bss->eap_server = atoi(pos);
1523                 } else if (os_strcmp(buf, "eap_user_file") == 0) {
1524                         if (hostapd_config_read_eap_user(pos, bss))
1525                                 errors++;
1526                 } else if (os_strcmp(buf, "ca_cert") == 0) {
1527                         os_free(bss->ca_cert);
1528                         bss->ca_cert = os_strdup(pos);
1529                 } else if (os_strcmp(buf, "server_cert") == 0) {
1530                         os_free(bss->server_cert);
1531                         bss->server_cert = os_strdup(pos);
1532                 } else if (os_strcmp(buf, "private_key") == 0) {
1533                         os_free(bss->private_key);
1534                         bss->private_key = os_strdup(pos);
1535                 } else if (os_strcmp(buf, "private_key_passwd") == 0) {
1536                         os_free(bss->private_key_passwd);
1537                         bss->private_key_passwd = os_strdup(pos);
1538                 } else if (os_strcmp(buf, "check_crl") == 0) {
1539                         bss->check_crl = atoi(pos);
1540                 } else if (os_strcmp(buf, "dh_file") == 0) {
1541                         os_free(bss->dh_file);
1542                         bss->dh_file = os_strdup(pos);
1543 #ifdef EAP_FAST
1544                 } else if (os_strcmp(buf, "pac_opaque_encr_key") == 0) {
1545                         os_free(bss->pac_opaque_encr_key);
1546                         bss->pac_opaque_encr_key = os_malloc(16);
1547                         if (bss->pac_opaque_encr_key == NULL) {
1548                                 printf("Line %d: No memory for "
1549                                        "pac_opque_encr_key\n", line);
1550                                 errors++;
1551                         } else if (hexstr2bin(pos, bss->pac_opaque_encr_key,
1552                                               16)) {
1553                                 printf("Line %d: Invalid pac_opque_encr_key\n",
1554                                        line);
1555                                 errors++;
1556                         }
1557                 } else if (os_strcmp(buf, "eap_fast_a_id") == 0) {
1558                         size_t idlen = os_strlen(pos);
1559                         if (idlen & 1) {
1560                                 printf("Line %d: Invalid eap_fast_a_id\n",
1561                                        line);
1562                                 errors++;
1563                         } else {
1564                                 os_free(bss->eap_fast_a_id);
1565                                 bss->eap_fast_a_id = os_malloc(idlen / 2);
1566                                 if (bss->eap_fast_a_id == NULL ||
1567                                     hexstr2bin(pos, bss->eap_fast_a_id,
1568                                                idlen / 2)) {
1569                                         printf("Line %d: Failed to parse "
1570                                                "eap_fast_a_id\n", line);
1571                                         errors++;
1572                                 } else
1573                                         bss->eap_fast_a_id_len = idlen / 2;
1574                         }
1575                 } else if (os_strcmp(buf, "eap_fast_a_id_info") == 0) {
1576                         os_free(bss->eap_fast_a_id_info);
1577                         bss->eap_fast_a_id_info = os_strdup(pos);
1578                 } else if (os_strcmp(buf, "eap_fast_prov") == 0) {
1579                         bss->eap_fast_prov = atoi(pos);
1580                 } else if (os_strcmp(buf, "pac_key_lifetime") == 0) {
1581                         bss->pac_key_lifetime = atoi(pos);
1582                 } else if (os_strcmp(buf, "pac_key_refresh_time") == 0) {
1583                         bss->pac_key_refresh_time = atoi(pos);
1584 #endif /* EAP_FAST */
1585 #ifdef EAP_SIM
1586                 } else if (os_strcmp(buf, "eap_sim_db") == 0) {
1587                         os_free(bss->eap_sim_db);
1588                         bss->eap_sim_db = os_strdup(pos);
1589                 } else if (os_strcmp(buf, "eap_sim_aka_result_ind") == 0) {
1590                         bss->eap_sim_aka_result_ind = atoi(pos);
1591 #endif /* EAP_SIM */
1592 #ifdef EAP_TNC
1593                 } else if (os_strcmp(buf, "tnc") == 0) {
1594                         bss->tnc = atoi(pos);
1595 #endif /* EAP_TNC */
1596 #endif /* EAP_SERVER */
1597                 } else if (os_strcmp(buf, "eap_message") == 0) {
1598                         char *term;
1599                         bss->eap_req_id_text = os_strdup(pos);
1600                         if (bss->eap_req_id_text == NULL) {
1601                                 printf("Line %d: Failed to allocate memory "
1602                                        "for eap_req_id_text\n", line);
1603                                 errors++;
1604                                 continue;
1605                         }
1606                         bss->eap_req_id_text_len =
1607                                 os_strlen(bss->eap_req_id_text);
1608                         term = os_strstr(bss->eap_req_id_text, "\\0");
1609                         if (term) {
1610                                 *term++ = '\0';
1611                                 os_memmove(term, term + 1,
1612                                            bss->eap_req_id_text_len -
1613                                            (term - bss->eap_req_id_text) - 1);
1614                                 bss->eap_req_id_text_len--;
1615                         }
1616                 } else if (os_strcmp(buf, "wep_key_len_broadcast") == 0) {
1617                         bss->default_wep_key_len = atoi(pos);
1618                         if (bss->default_wep_key_len > 13) {
1619                                 printf("Line %d: invalid WEP key len %lu "
1620                                        "(= %lu bits)\n", line,
1621                                        (unsigned long)
1622                                        bss->default_wep_key_len,
1623                                        (unsigned long)
1624                                        bss->default_wep_key_len * 8);
1625                                 errors++;
1626                         }
1627                 } else if (os_strcmp(buf, "wep_key_len_unicast") == 0) {
1628                         bss->individual_wep_key_len = atoi(pos);
1629                         if (bss->individual_wep_key_len < 0 ||
1630                             bss->individual_wep_key_len > 13) {
1631                                 printf("Line %d: invalid WEP key len %d "
1632                                        "(= %d bits)\n", line,
1633                                        bss->individual_wep_key_len,
1634                                        bss->individual_wep_key_len * 8);
1635                                 errors++;
1636                         }
1637                 } else if (os_strcmp(buf, "wep_rekey_period") == 0) {
1638                         bss->wep_rekeying_period = atoi(pos);
1639                         if (bss->wep_rekeying_period < 0) {
1640                                 printf("Line %d: invalid period %d\n",
1641                                        line, bss->wep_rekeying_period);
1642                                 errors++;
1643                         }
1644                 } else if (os_strcmp(buf, "eap_reauth_period") == 0) {
1645                         bss->eap_reauth_period = atoi(pos);
1646                         if (bss->eap_reauth_period < 0) {
1647                                 printf("Line %d: invalid period %d\n",
1648                                        line, bss->eap_reauth_period);
1649                                 errors++;
1650                         }
1651                 } else if (os_strcmp(buf, "eapol_key_index_workaround") == 0) {
1652                         bss->eapol_key_index_workaround = atoi(pos);
1653 #ifdef CONFIG_IAPP
1654                 } else if (os_strcmp(buf, "iapp_interface") == 0) {
1655                         bss->ieee802_11f = 1;
1656                         os_strlcpy(bss->iapp_iface, pos,
1657                                    sizeof(bss->iapp_iface));
1658 #endif /* CONFIG_IAPP */
1659                 } else if (os_strcmp(buf, "own_ip_addr") == 0) {
1660                         if (hostapd_parse_ip_addr(pos, &bss->own_ip_addr)) {
1661                                 printf("Line %d: invalid IP address '%s'\n",
1662                                        line, pos);
1663                                 errors++;
1664                         }
1665                 } else if (os_strcmp(buf, "nas_identifier") == 0) {
1666                         bss->nas_identifier = os_strdup(pos);
1667                 } else if (os_strcmp(buf, "auth_server_addr") == 0) {
1668                         if (hostapd_config_read_radius_addr(
1669                                     &bss->radius->auth_servers,
1670                                     &bss->radius->num_auth_servers, pos, 1812,
1671                                     &bss->radius->auth_server)) {
1672                                 printf("Line %d: invalid IP address '%s'\n",
1673                                        line, pos);
1674                                 errors++;
1675                         }
1676                 } else if (bss->radius->auth_server &&
1677                            os_strcmp(buf, "auth_server_port") == 0) {
1678                         bss->radius->auth_server->port = atoi(pos);
1679                 } else if (bss->radius->auth_server &&
1680                            os_strcmp(buf, "auth_server_shared_secret") == 0) {
1681                         int len = os_strlen(pos);
1682                         if (len == 0) {
1683                                 /* RFC 2865, Ch. 3 */
1684                                 printf("Line %d: empty shared secret is not "
1685                                        "allowed.\n", line);
1686                                 errors++;
1687                         }
1688                         bss->radius->auth_server->shared_secret =
1689                                 (u8 *) os_strdup(pos);
1690                         bss->radius->auth_server->shared_secret_len = len;
1691                 } else if (os_strcmp(buf, "acct_server_addr") == 0) {
1692                         if (hostapd_config_read_radius_addr(
1693                                     &bss->radius->acct_servers,
1694                                     &bss->radius->num_acct_servers, pos, 1813,
1695                                     &bss->radius->acct_server)) {
1696                                 printf("Line %d: invalid IP address '%s'\n",
1697                                        line, pos);
1698                                 errors++;
1699                         }
1700                 } else if (bss->radius->acct_server &&
1701                            os_strcmp(buf, "acct_server_port") == 0) {
1702                         bss->radius->acct_server->port = atoi(pos);
1703                 } else if (bss->radius->acct_server &&
1704                            os_strcmp(buf, "acct_server_shared_secret") == 0) {
1705                         int len = os_strlen(pos);
1706                         if (len == 0) {
1707                                 /* RFC 2865, Ch. 3 */
1708                                 printf("Line %d: empty shared secret is not "
1709                                        "allowed.\n", line);
1710                                 errors++;
1711                         }
1712                         bss->radius->acct_server->shared_secret =
1713                                 (u8 *) os_strdup(pos);
1714                         bss->radius->acct_server->shared_secret_len = len;
1715                 } else if (os_strcmp(buf, "radius_retry_primary_interval") ==
1716                            0) {
1717                         bss->radius->retry_primary_interval = atoi(pos);
1718                 } else if (os_strcmp(buf, "radius_acct_interim_interval") == 0)
1719                 {
1720                         bss->radius->acct_interim_interval = atoi(pos);
1721                 } else if (os_strcmp(buf, "auth_algs") == 0) {
1722                         bss->auth_algs = atoi(pos);
1723                         if (bss->auth_algs == 0) {
1724                                 printf("Line %d: no authentication algorithms "
1725                                        "allowed\n",
1726                                        line);
1727                                 errors++;
1728                         }
1729                 } else if (os_strcmp(buf, "max_num_sta") == 0) {
1730                         bss->max_num_sta = atoi(pos);
1731                         if (bss->max_num_sta < 0 ||
1732                             bss->max_num_sta > MAX_STA_COUNT) {
1733                                 printf("Line %d: Invalid max_num_sta=%d; "
1734                                        "allowed range 0..%d\n", line,
1735                                        bss->max_num_sta, MAX_STA_COUNT);
1736                                 errors++;
1737                         }
1738                 } else if (os_strcmp(buf, "wpa") == 0) {
1739                         bss->wpa = atoi(pos);
1740                 } else if (os_strcmp(buf, "wpa_group_rekey") == 0) {
1741                         bss->wpa_group_rekey = atoi(pos);
1742                 } else if (os_strcmp(buf, "wpa_strict_rekey") == 0) {
1743                         bss->wpa_strict_rekey = atoi(pos);
1744                 } else if (os_strcmp(buf, "wpa_gmk_rekey") == 0) {
1745                         bss->wpa_gmk_rekey = atoi(pos);
1746                 } else if (os_strcmp(buf, "wpa_ptk_rekey") == 0) {
1747                         bss->wpa_ptk_rekey = atoi(pos);
1748                 } else if (os_strcmp(buf, "wpa_passphrase") == 0) {
1749                         int len = os_strlen(pos);
1750                         if (len < 8 || len > 63) {
1751                                 printf("Line %d: invalid WPA passphrase length"
1752                                        " %d (expected 8..63)\n", line, len);
1753                                 errors++;
1754                         } else {
1755                                 os_free(bss->ssid.wpa_passphrase);
1756                                 bss->ssid.wpa_passphrase = os_strdup(pos);
1757                         }
1758                 } else if (os_strcmp(buf, "wpa_psk") == 0) {
1759                         os_free(bss->ssid.wpa_psk);
1760                         bss->ssid.wpa_psk =
1761                                 os_zalloc(sizeof(struct hostapd_wpa_psk));
1762                         if (bss->ssid.wpa_psk == NULL)
1763                                 errors++;
1764                         else if (hexstr2bin(pos, bss->ssid.wpa_psk->psk,
1765                                             PMK_LEN) ||
1766                                  pos[PMK_LEN * 2] != '\0') {
1767                                 printf("Line %d: Invalid PSK '%s'.\n", line,
1768                                        pos);
1769                                 errors++;
1770                         } else {
1771                                 bss->ssid.wpa_psk->group = 1;
1772                         }
1773                 } else if (os_strcmp(buf, "wpa_psk_file") == 0) {
1774                         os_free(bss->ssid.wpa_psk_file);
1775                         bss->ssid.wpa_psk_file = os_strdup(pos);
1776                         if (!bss->ssid.wpa_psk_file) {
1777                                 printf("Line %d: allocation failed\n", line);
1778                                 errors++;
1779                         }
1780                 } else if (os_strcmp(buf, "wpa_key_mgmt") == 0) {
1781                         bss->wpa_key_mgmt =
1782                                 hostapd_config_parse_key_mgmt(line, pos);
1783                         if (bss->wpa_key_mgmt == -1)
1784                                 errors++;
1785                 } else if (os_strcmp(buf, "wpa_pairwise") == 0) {
1786                         bss->wpa_pairwise =
1787                                 hostapd_config_parse_cipher(line, pos);
1788                         if (bss->wpa_pairwise == -1 ||
1789                             bss->wpa_pairwise == 0)
1790                                 errors++;
1791                         else if (bss->wpa_pairwise &
1792                                  (WPA_CIPHER_NONE | WPA_CIPHER_WEP40 |
1793                                   WPA_CIPHER_WEP104)) {
1794                                 printf("Line %d: unsupported pairwise "
1795                                        "cipher suite '%s'\n",
1796                                        bss->wpa_pairwise, pos);
1797                                 errors++;
1798                         }
1799                 } else if (os_strcmp(buf, "rsn_pairwise") == 0) {
1800                         bss->rsn_pairwise =
1801                                 hostapd_config_parse_cipher(line, pos);
1802                         if (bss->rsn_pairwise == -1 ||
1803                             bss->rsn_pairwise == 0)
1804                                 errors++;
1805                         else if (bss->rsn_pairwise &
1806                                  (WPA_CIPHER_NONE | WPA_CIPHER_WEP40 |
1807                                   WPA_CIPHER_WEP104)) {
1808                                 printf("Line %d: unsupported pairwise "
1809                                        "cipher suite '%s'\n",
1810                                        bss->rsn_pairwise, pos);
1811                                 errors++;
1812                         }
1813 #ifdef CONFIG_RSN_PREAUTH
1814                 } else if (os_strcmp(buf, "rsn_preauth") == 0) {
1815                         bss->rsn_preauth = atoi(pos);
1816                 } else if (os_strcmp(buf, "rsn_preauth_interfaces") == 0) {
1817                         bss->rsn_preauth_interfaces = os_strdup(pos);
1818 #endif /* CONFIG_RSN_PREAUTH */
1819 #ifdef CONFIG_PEERKEY
1820                 } else if (os_strcmp(buf, "peerkey") == 0) {
1821                         bss->peerkey = atoi(pos);
1822 #endif /* CONFIG_PEERKEY */
1823 #ifdef CONFIG_IEEE80211R
1824                 } else if (os_strcmp(buf, "mobility_domain") == 0) {
1825                         if (os_strlen(pos) != 2 * MOBILITY_DOMAIN_ID_LEN ||
1826                             hexstr2bin(pos, bss->mobility_domain,
1827                                        MOBILITY_DOMAIN_ID_LEN) != 0) {
1828                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1829                                            "mobility_domain '%s'", line, pos);
1830                                 errors++;
1831                                 continue;
1832                         }
1833                 } else if (os_strcmp(buf, "r1_key_holder") == 0) {
1834                         if (os_strlen(pos) != 2 * FT_R1KH_ID_LEN ||
1835                             hexstr2bin(pos, bss->r1_key_holder,
1836                                        FT_R1KH_ID_LEN) != 0) {
1837                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1838                                            "r1_key_holder '%s'", line, pos);
1839                                 errors++;
1840                                 continue;
1841                         }
1842                 } else if (os_strcmp(buf, "r0_key_lifetime") == 0) {
1843                         bss->r0_key_lifetime = atoi(pos);
1844                 } else if (os_strcmp(buf, "reassociation_deadline") == 0) {
1845                         bss->reassociation_deadline = atoi(pos);
1846                 } else if (os_strcmp(buf, "r0kh") == 0) {
1847                         if (add_r0kh(bss, pos) < 0) {
1848                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1849                                            "r0kh '%s'", line, pos);
1850                                 errors++;
1851                                 continue;
1852                         }
1853                 } else if (os_strcmp(buf, "r1kh") == 0) {
1854                         if (add_r1kh(bss, pos) < 0) {
1855                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1856                                            "r1kh '%s'", line, pos);
1857                                 errors++;
1858                                 continue;
1859                         }
1860                 } else if (os_strcmp(buf, "pmk_r1_push") == 0) {
1861                         bss->pmk_r1_push = atoi(pos);
1862 #endif /* CONFIG_IEEE80211R */
1863                 } else if (os_strcmp(buf, "ctrl_interface") == 0) {
1864                         os_free(bss->ctrl_interface);
1865                         bss->ctrl_interface = os_strdup(pos);
1866                 } else if (os_strcmp(buf, "ctrl_interface_group") == 0) {
1867 #ifndef CONFIG_NATIVE_WINDOWS
1868                         struct group *grp;
1869                         char *endp;
1870                         const char *group = pos;
1871
1872                         grp = getgrnam(group);
1873                         if (grp) {
1874                                 bss->ctrl_interface_gid = grp->gr_gid;
1875                                 bss->ctrl_interface_gid_set = 1;
1876                                 wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d"
1877                                            " (from group name '%s')",
1878                                            bss->ctrl_interface_gid, group);
1879                                 continue;
1880                         }
1881
1882                         /* Group name not found - try to parse this as gid */
1883                         bss->ctrl_interface_gid = strtol(group, &endp, 10);
1884                         if (*group == '\0' || *endp != '\0') {
1885                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid group "
1886                                            "'%s'", line, group);
1887                                 errors++;
1888                                 continue;
1889                         }
1890                         bss->ctrl_interface_gid_set = 1;
1891                         wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d",
1892                                    bss->ctrl_interface_gid);
1893 #endif /* CONFIG_NATIVE_WINDOWS */
1894 #ifdef RADIUS_SERVER
1895                 } else if (os_strcmp(buf, "radius_server_clients") == 0) {
1896                         os_free(bss->radius_server_clients);
1897                         bss->radius_server_clients = os_strdup(pos);
1898                 } else if (os_strcmp(buf, "radius_server_auth_port") == 0) {
1899                         bss->radius_server_auth_port = atoi(pos);
1900                 } else if (os_strcmp(buf, "radius_server_ipv6") == 0) {
1901                         bss->radius_server_ipv6 = atoi(pos);
1902 #endif /* RADIUS_SERVER */
1903                 } else if (os_strcmp(buf, "test_socket") == 0) {
1904                         os_free(bss->test_socket);
1905                         bss->test_socket = os_strdup(pos);
1906                 } else if (os_strcmp(buf, "use_pae_group_addr") == 0) {
1907                         bss->use_pae_group_addr = atoi(pos);
1908                 } else if (os_strcmp(buf, "hw_mode") == 0) {
1909                         if (os_strcmp(pos, "a") == 0)
1910                                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
1911                         else if (os_strcmp(pos, "b") == 0)
1912                                 conf->hw_mode = HOSTAPD_MODE_IEEE80211B;
1913                         else if (os_strcmp(pos, "g") == 0)
1914                                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
1915                         else {
1916                                 printf("Line %d: unknown hw_mode '%s'\n",
1917                                        line, pos);
1918                                 errors++;
1919                         }
1920                 } else if (os_strcmp(buf, "channel") == 0) {
1921                         conf->channel = atoi(pos);
1922                 } else if (os_strcmp(buf, "beacon_int") == 0) {
1923                         int val = atoi(pos);
1924                         /* MIB defines range as 1..65535, but very small values
1925                          * cause problems with the current implementation.
1926                          * Since it is unlikely that this small numbers are
1927                          * useful in real life scenarios, do not allow beacon
1928                          * period to be set below 15 TU. */
1929                         if (val < 15 || val > 65535) {
1930                                 printf("Line %d: invalid beacon_int %d "
1931                                        "(expected 15..65535)\n",
1932                                        line, val);
1933                                 errors++;
1934                         } else
1935                                 conf->beacon_int = val;
1936                 } else if (os_strcmp(buf, "dtim_period") == 0) {
1937                         bss->dtim_period = atoi(pos);
1938                         if (bss->dtim_period < 1 || bss->dtim_period > 255) {
1939                                 printf("Line %d: invalid dtim_period %d\n",
1940                                        line, bss->dtim_period);
1941                                 errors++;
1942                         }
1943                 } else if (os_strcmp(buf, "rts_threshold") == 0) {
1944                         conf->rts_threshold = atoi(pos);
1945                         if (conf->rts_threshold < 0 ||
1946                             conf->rts_threshold > 2347) {
1947                                 printf("Line %d: invalid rts_threshold %d\n",
1948                                        line, conf->rts_threshold);
1949                                 errors++;
1950                         }
1951                 } else if (os_strcmp(buf, "fragm_threshold") == 0) {
1952                         conf->fragm_threshold = atoi(pos);
1953                         if (conf->fragm_threshold < 256 ||
1954                             conf->fragm_threshold > 2346) {
1955                                 printf("Line %d: invalid fragm_threshold %d\n",
1956                                        line, conf->fragm_threshold);
1957                                 errors++;
1958                         }
1959                 } else if (os_strcmp(buf, "send_probe_response") == 0) {
1960                         int val = atoi(pos);
1961                         if (val != 0 && val != 1) {
1962                                 printf("Line %d: invalid send_probe_response "
1963                                        "%d (expected 0 or 1)\n", line, val);
1964                         } else
1965                                 conf->send_probe_response = val;
1966                 } else if (os_strcmp(buf, "supported_rates") == 0) {
1967                         if (hostapd_parse_rates(&conf->supported_rates, pos)) {
1968                                 printf("Line %d: invalid rate list\n", line);
1969                                 errors++;
1970                         }
1971                 } else if (os_strcmp(buf, "basic_rates") == 0) {
1972                         if (hostapd_parse_rates(&conf->basic_rates, pos)) {
1973                                 printf("Line %d: invalid rate list\n", line);
1974                                 errors++;
1975                         }
1976                 } else if (os_strcmp(buf, "preamble") == 0) {
1977                         if (atoi(pos))
1978                                 conf->preamble = SHORT_PREAMBLE;
1979                         else
1980                                 conf->preamble = LONG_PREAMBLE;
1981                 } else if (os_strcmp(buf, "ignore_broadcast_ssid") == 0) {
1982                         bss->ignore_broadcast_ssid = atoi(pos);
1983                 } else if (os_strcmp(buf, "bridge_packets") == 0) {
1984                         conf->bridge_packets = atoi(pos);
1985                 } else if (os_strcmp(buf, "wep_default_key") == 0) {
1986                         bss->ssid.wep.idx = atoi(pos);
1987                         if (bss->ssid.wep.idx > 3) {
1988                                 printf("Invalid wep_default_key index %d\n",
1989                                        bss->ssid.wep.idx);
1990                                 errors++;
1991                         }
1992                 } else if (os_strcmp(buf, "wep_key0") == 0 ||
1993                            os_strcmp(buf, "wep_key1") == 0 ||
1994                            os_strcmp(buf, "wep_key2") == 0 ||
1995                            os_strcmp(buf, "wep_key3") == 0) {
1996                         if (hostapd_config_read_wep(&bss->ssid.wep,
1997                                                     buf[7] - '0', pos)) {
1998                                 printf("Line %d: invalid WEP key '%s'\n",
1999                                        line, buf);
2000                                 errors++;
2001                         }
2002                 } else if (os_strcmp(buf, "dynamic_vlan") == 0) {
2003                         bss->ssid.dynamic_vlan = atoi(pos);
2004                 } else if (os_strcmp(buf, "vlan_file") == 0) {
2005                         if (hostapd_config_read_vlan_file(bss, pos)) {
2006                                 printf("Line %d: failed to read VLAN file "
2007                                        "'%s'\n", line, pos);
2008                                 errors++;
2009                         }
2010 #ifdef CONFIG_FULL_DYNAMIC_VLAN
2011                 } else if (os_strcmp(buf, "vlan_tagged_interface") == 0) {
2012                         bss->ssid.vlan_tagged_interface = os_strdup(pos);
2013 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
2014                 } else if (os_strcmp(buf, "passive_scan_interval") == 0) {
2015                         conf->passive_scan_interval = atoi(pos);
2016                 } else if (os_strcmp(buf, "passive_scan_listen") == 0) {
2017                         conf->passive_scan_listen = atoi(pos);
2018                 } else if (os_strcmp(buf, "passive_scan_mode") == 0) {
2019                         conf->passive_scan_mode = atoi(pos);
2020                 } else if (os_strcmp(buf, "ap_table_max_size") == 0) {
2021                         conf->ap_table_max_size = atoi(pos);
2022                 } else if (os_strcmp(buf, "ap_table_expiration_time") == 0) {
2023                         conf->ap_table_expiration_time = atoi(pos);
2024                 } else if (os_strncmp(buf, "tx_queue_", 9) == 0) {
2025                         if (hostapd_config_tx_queue(conf, buf, pos)) {
2026                                 printf("Line %d: invalid TX queue item\n",
2027                                        line);
2028                                 errors++;
2029                         }
2030                 } else if (os_strcmp(buf, "wme_enabled") == 0) {
2031                         bss->wme_enabled = atoi(pos);
2032                 } else if (os_strncmp(buf, "wme_ac_", 7) == 0) {
2033                         if (hostapd_config_wme_ac(conf, buf, pos)) {
2034                                 printf("Line %d: invalid wme ac item\n",
2035                                        line);
2036                                 errors++;
2037                         }
2038                 } else if (os_strcmp(buf, "bss") == 0) {
2039                         if (hostapd_config_bss(conf, pos)) {
2040                                 printf("Line %d: invalid bss item\n", line);
2041                                 errors++;
2042                         }
2043                 } else if (os_strcmp(buf, "bssid") == 0) {
2044                         if (bss == conf->bss &&
2045                             (!conf->driver || !conf->driver->init_bssid)) {
2046                                 printf("Line %d: bssid item not allowed "
2047                                        "for the default interface and this "
2048                                        "driver\n", line);
2049                                 errors++;
2050                         } else if (hwaddr_aton(pos, bss->bssid)) {
2051                                 printf("Line %d: invalid bssid item\n", line);
2052                                 errors++;
2053                         }
2054 #ifdef CONFIG_IEEE80211W
2055                 } else if (os_strcmp(buf, "ieee80211w") == 0) {
2056                         bss->ieee80211w = atoi(pos);
2057                 } else if (os_strcmp(buf, "assoc_ping_timeout") == 0) {
2058                         bss->assoc_ping_timeout = atoi(pos);
2059                         if (bss->assoc_ping_timeout == 0) {
2060                                 printf("Line %d: invalid assoc_ping_timeout\n",
2061                                         line);
2062                                 errors++;
2063                         }
2064                 } else if (os_strcmp(buf, "assoc_ping_attempts") == 0) {
2065                         bss->assoc_ping_timeout = atoi(pos);
2066                         if (bss->assoc_ping_timeout == 0) {
2067                                 printf("Line %d: invalid assoc_ping_attempts "
2068                                        "(valid range: 1..255)\n",
2069                                        line);
2070                                 errors++;
2071                         }
2072 #endif /* CONFIG_IEEE80211W */
2073 #ifdef CONFIG_IEEE80211N
2074                 } else if (os_strcmp(buf, "ieee80211n") == 0) {
2075                         conf->ieee80211n = atoi(pos);
2076                 } else if (os_strcmp(buf, "ht_capab") == 0) {
2077                         if (hostapd_config_ht_capab(conf, pos) < 0) {
2078                                 printf("Line %d: invalid ht_capab\n", line);
2079                                 errors++;
2080                         }
2081 #endif /* CONFIG_IEEE80211N */
2082                 } else if (os_strcmp(buf, "max_listen_interval") == 0) {
2083                         bss->max_listen_interval = atoi(pos);
2084                 } else if (os_strcmp(buf, "okc") == 0) {
2085                         bss->okc = atoi(pos);
2086 #ifdef CONFIG_WPS
2087                 } else if (os_strcmp(buf, "wps_state") == 0) {
2088                         bss->wps_state = atoi(pos);
2089                         if (bss->wps_state < 0 || bss->wps_state > 2) {
2090                                 printf("Line %d: invalid wps_state\n", line);
2091                                 errors++;
2092                         }
2093                 } else if (os_strcmp(buf, "ap_setup_locked") == 0) {
2094                         bss->ap_setup_locked = atoi(pos);
2095                 } else if (os_strcmp(buf, "uuid") == 0) {
2096                         if (uuid_str2bin(pos, bss->uuid)) {
2097                                 printf("Line %d: invalid UUID\n", line);
2098                                 errors++;
2099                         }
2100                 } else if (os_strcmp(buf, "wps_pin_requests") == 0) {
2101                         bss->wps_pin_requests = os_strdup(pos);
2102                 } else if (os_strcmp(buf, "device_name") == 0) {
2103                         bss->device_name = os_strdup(pos);
2104                 } else if (os_strcmp(buf, "manufacturer") == 0) {
2105                         bss->manufacturer = os_strdup(pos);
2106                 } else if (os_strcmp(buf, "model_name") == 0) {
2107                         bss->model_name = os_strdup(pos);
2108                 } else if (os_strcmp(buf, "model_number") == 0) {
2109                         bss->model_number = os_strdup(pos);
2110                 } else if (os_strcmp(buf, "serial_number") == 0) {
2111                         bss->serial_number = os_strdup(pos);
2112                 } else if (os_strcmp(buf, "device_type") == 0) {
2113                         bss->device_type = os_strdup(pos);
2114                 } else if (os_strcmp(buf, "config_methods") == 0) {
2115                         bss->config_methods = os_strdup(pos);
2116                 } else if (os_strcmp(buf, "os_version") == 0) {
2117                         if (hexstr2bin(pos, bss->os_version, 4)) {
2118                                 printf("Line %d: invalid os_version\n", line);
2119                                 errors++;
2120                         }
2121                 } else if (os_strcmp(buf, "ap_pin") == 0) {
2122                         bss->ap_pin = os_strdup(pos);
2123 #endif /* CONFIG_WPS */
2124                 } else {
2125                         printf("Line %d: unknown configuration item '%s'\n",
2126                                line, buf);
2127                         errors++;
2128                 }
2129         }
2130
2131         fclose(f);
2132
2133         if (bss->individual_wep_key_len == 0) {
2134                 /* individual keys are not use; can use key idx0 for broadcast
2135                  * keys */
2136                 bss->broadcast_key_idx_min = 0;
2137         }
2138
2139         /* Select group cipher based on the enabled pairwise cipher suites */
2140         pairwise = 0;
2141         if (bss->wpa & 1)
2142                 pairwise |= bss->wpa_pairwise;
2143         if (bss->wpa & 2) {
2144                 if (bss->rsn_pairwise == 0)
2145                         bss->rsn_pairwise = bss->wpa_pairwise;
2146                 pairwise |= bss->rsn_pairwise;
2147         }
2148         if (pairwise & WPA_CIPHER_TKIP)
2149                 bss->wpa_group = WPA_CIPHER_TKIP;
2150         else
2151                 bss->wpa_group = WPA_CIPHER_CCMP;
2152
2153         for (i = 0; i < conf->num_bss; i++) {
2154                 bss = &conf->bss[i];
2155
2156                 bss->radius->auth_server = bss->radius->auth_servers;
2157                 bss->radius->acct_server = bss->radius->acct_servers;
2158
2159                 if (bss->wpa && bss->ieee802_1x) {
2160                         bss->ssid.security_policy = SECURITY_WPA;
2161                 } else if (bss->wpa) {
2162                         bss->ssid.security_policy = SECURITY_WPA_PSK;
2163                 } else if (bss->ieee802_1x) {
2164                         bss->ssid.security_policy = SECURITY_IEEE_802_1X;
2165                         bss->ssid.wep.default_len = bss->default_wep_key_len;
2166                 } else if (bss->ssid.wep.keys_set)
2167                         bss->ssid.security_policy = SECURITY_STATIC_WEP;
2168                 else
2169                         bss->ssid.security_policy = SECURITY_PLAINTEXT;
2170         }
2171
2172         if (hostapd_config_check(conf))
2173                 errors++;
2174
2175         if (errors) {
2176                 printf("%d errors found in configuration file '%s'\n",
2177                        errors, fname);
2178                 hostapd_config_free(conf);
2179                 conf = NULL;
2180         }
2181
2182         return conf;
2183 }
2184
2185
2186 int hostapd_wep_key_cmp(struct hostapd_wep_keys *a, struct hostapd_wep_keys *b)
2187 {
2188         int i;
2189
2190         if (a->idx != b->idx || a->default_len != b->default_len)
2191                 return 1;
2192         for (i = 0; i < NUM_WEP_KEYS; i++)
2193                 if (a->len[i] != b->len[i] ||
2194                     os_memcmp(a->key[i], b->key[i], a->len[i]) != 0)
2195                         return 1;
2196         return 0;
2197 }
2198
2199
2200 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
2201                                        int num_servers)
2202 {
2203         int i;
2204
2205         for (i = 0; i < num_servers; i++) {
2206                 os_free(servers[i].shared_secret);
2207         }
2208         os_free(servers);
2209 }
2210
2211
2212 static void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
2213 {
2214         os_free(user->identity);
2215         os_free(user->password);
2216         os_free(user);
2217 }
2218
2219
2220 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
2221 {
2222         int i;
2223         for (i = 0; i < NUM_WEP_KEYS; i++) {
2224                 os_free(keys->key[i]);
2225                 keys->key[i] = NULL;
2226         }
2227 }
2228
2229
2230 static void hostapd_config_free_bss(struct hostapd_bss_config *conf)
2231 {
2232         struct hostapd_wpa_psk *psk, *prev;
2233         struct hostapd_eap_user *user, *prev_user;
2234
2235         if (conf == NULL)
2236                 return;
2237
2238         psk = conf->ssid.wpa_psk;
2239         while (psk) {
2240                 prev = psk;
2241                 psk = psk->next;
2242                 os_free(prev);
2243         }
2244
2245         os_free(conf->ssid.wpa_passphrase);
2246         os_free(conf->ssid.wpa_psk_file);
2247 #ifdef CONFIG_FULL_DYNAMIC_VLAN
2248         os_free(conf->ssid.vlan_tagged_interface);
2249 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
2250
2251         user = conf->eap_user;
2252         while (user) {
2253                 prev_user = user;
2254                 user = user->next;
2255                 hostapd_config_free_eap_user(prev_user);
2256         }
2257
2258         os_free(conf->dump_log_name);
2259         os_free(conf->eap_req_id_text);
2260         os_free(conf->accept_mac);
2261         os_free(conf->deny_mac);
2262         os_free(conf->nas_identifier);
2263         hostapd_config_free_radius(conf->radius->auth_servers,
2264                                    conf->radius->num_auth_servers);
2265         hostapd_config_free_radius(conf->radius->acct_servers,
2266                                    conf->radius->num_acct_servers);
2267         os_free(conf->rsn_preauth_interfaces);
2268         os_free(conf->ctrl_interface);
2269         os_free(conf->ca_cert);
2270         os_free(conf->server_cert);
2271         os_free(conf->private_key);
2272         os_free(conf->private_key_passwd);
2273         os_free(conf->dh_file);
2274         os_free(conf->pac_opaque_encr_key);
2275         os_free(conf->eap_fast_a_id);
2276         os_free(conf->eap_fast_a_id_info);
2277         os_free(conf->eap_sim_db);
2278         os_free(conf->radius_server_clients);
2279         os_free(conf->test_socket);
2280         os_free(conf->radius);
2281         hostapd_config_free_vlan(conf);
2282         if (conf->ssid.dyn_vlan_keys) {
2283                 struct hostapd_ssid *ssid = &conf->ssid;
2284                 size_t i;
2285                 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
2286                         if (ssid->dyn_vlan_keys[i] == NULL)
2287                                 continue;
2288                         hostapd_config_free_wep(ssid->dyn_vlan_keys[i]);
2289                         os_free(ssid->dyn_vlan_keys[i]);
2290                 }
2291                 os_free(ssid->dyn_vlan_keys);
2292                 ssid->dyn_vlan_keys = NULL;
2293         }
2294
2295 #ifdef CONFIG_IEEE80211R
2296         {
2297                 struct ft_remote_r0kh *r0kh, *r0kh_prev;
2298                 struct ft_remote_r1kh *r1kh, *r1kh_prev;
2299
2300                 r0kh = conf->r0kh_list;
2301                 conf->r0kh_list = NULL;
2302                 while (r0kh) {
2303                         r0kh_prev = r0kh;
2304                         r0kh = r0kh->next;
2305                         os_free(r0kh_prev);
2306                 }
2307
2308                 r1kh = conf->r1kh_list;
2309                 conf->r1kh_list = NULL;
2310                 while (r1kh) {
2311                         r1kh_prev = r1kh;
2312                         r1kh = r1kh->next;
2313                         os_free(r1kh_prev);
2314                 }
2315         }
2316 #endif /* CONFIG_IEEE80211R */
2317
2318 #ifdef CONFIG_WPS
2319         os_free(conf->wps_pin_requests);
2320         os_free(conf->device_name);
2321         os_free(conf->manufacturer);
2322         os_free(conf->model_name);
2323         os_free(conf->model_number);
2324         os_free(conf->serial_number);
2325         os_free(conf->device_type);
2326         os_free(conf->config_methods);
2327         os_free(conf->ap_pin);
2328 #endif /* CONFIG_WPS */
2329 }
2330
2331
2332 void hostapd_config_free(struct hostapd_config *conf)
2333 {
2334         size_t i;
2335
2336         if (conf == NULL)
2337                 return;
2338
2339         for (i = 0; i < conf->num_bss; i++)
2340                 hostapd_config_free_bss(&conf->bss[i]);
2341         os_free(conf->bss);
2342
2343         os_free(conf);
2344 }
2345
2346
2347 /* Perform a binary search for given MAC address from a pre-sorted list.
2348  * Returns 1 if address is in the list or 0 if not. */
2349 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
2350                           const u8 *addr, int *vlan_id)
2351 {
2352         int start, end, middle, res;
2353
2354         start = 0;
2355         end = num_entries - 1;
2356
2357         while (start <= end) {
2358                 middle = (start + end) / 2;
2359                 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
2360                 if (res == 0) {
2361                         if (vlan_id)
2362                                 *vlan_id = list[middle].vlan_id;
2363                         return 1;
2364                 }
2365                 if (res < 0)
2366                         start = middle + 1;
2367                 else
2368                         end = middle - 1;
2369         }
2370
2371         return 0;
2372 }
2373
2374
2375 int hostapd_rate_found(int *list, int rate)
2376 {
2377         int i;
2378
2379         if (list == NULL)
2380                 return 0;
2381
2382         for (i = 0; list[i] >= 0; i++)
2383                 if (list[i] == rate)
2384                         return 1;
2385
2386         return 0;
2387 }
2388
2389
2390 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
2391 {
2392         struct hostapd_vlan *v = vlan;
2393         while (v) {
2394                 if (v->vlan_id == vlan_id || v->vlan_id == VLAN_ID_WILDCARD)
2395                         return v->ifname;
2396                 v = v->next;
2397         }
2398         return NULL;
2399 }
2400
2401
2402 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
2403                            const u8 *addr, const u8 *prev_psk)
2404 {
2405         struct hostapd_wpa_psk *psk;
2406         int next_ok = prev_psk == NULL;
2407
2408         for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
2409                 if (next_ok &&
2410                     (psk->group || os_memcmp(psk->addr, addr, ETH_ALEN) == 0))
2411                         return psk->psk;
2412
2413                 if (psk->psk == prev_psk)
2414                         next_ok = 1;
2415         }
2416
2417         return NULL;
2418 }
2419
2420
2421 const struct hostapd_eap_user *
2422 hostapd_get_eap_user(const struct hostapd_bss_config *conf, const u8 *identity,
2423                      size_t identity_len, int phase2)
2424 {
2425         struct hostapd_eap_user *user = conf->eap_user;
2426
2427 #ifdef CONFIG_WPS
2428         if (conf->wps_state && identity_len == WSC_ID_ENROLLEE_LEN &&
2429             os_memcmp(identity, WSC_ID_ENROLLEE, WSC_ID_ENROLLEE_LEN) == 0) {
2430                 static struct hostapd_eap_user wsc_enrollee;
2431                 os_memset(&wsc_enrollee, 0, sizeof(wsc_enrollee));
2432                 wsc_enrollee.methods[0].method = eap_server_get_type(
2433                         "WSC", &wsc_enrollee.methods[0].vendor);
2434                 return &wsc_enrollee;
2435         }
2436
2437         if (conf->wps_state && conf->ap_pin &&
2438             identity_len == WSC_ID_REGISTRAR_LEN &&
2439             os_memcmp(identity, WSC_ID_REGISTRAR, WSC_ID_REGISTRAR_LEN) == 0) {
2440                 static struct hostapd_eap_user wsc_registrar;
2441                 os_memset(&wsc_registrar, 0, sizeof(wsc_registrar));
2442                 wsc_registrar.methods[0].method = eap_server_get_type(
2443                         "WSC", &wsc_registrar.methods[0].vendor);
2444                 wsc_registrar.password = (u8 *) conf->ap_pin;
2445                 wsc_registrar.password_len = os_strlen(conf->ap_pin);
2446                 return &wsc_registrar;
2447         }
2448 #endif /* CONFIG_WPS */
2449
2450         while (user) {
2451                 if (!phase2 && user->identity == NULL) {
2452                         /* Wildcard match */
2453                         break;
2454                 }
2455
2456                 if (user->phase2 == !!phase2 && user->wildcard_prefix &&
2457                     identity_len >= user->identity_len &&
2458                     os_memcmp(user->identity, identity, user->identity_len) ==
2459                     0) {
2460                         /* Wildcard prefix match */
2461                         break;
2462                 }
2463
2464                 if (user->phase2 == !!phase2 &&
2465                     user->identity_len == identity_len &&
2466                     os_memcmp(user->identity, identity, identity_len) == 0)
2467                         break;
2468                 user = user->next;
2469         }
2470
2471         return user;
2472 }