git.maemo.org Git - wpasupplicant/blob - 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
  30
  31 #define MAX_STA_COUNT 2007
  32
  33 extern struct wpa_driver_ops *hostapd_drivers[];
  34
  35
  36 static int hostapd_config_read_vlan_file(struct hostapd_bss_config *bss,
  37                                          const char *fname)
  38 {
  39         FILE *f;
  40         char buf[128], *pos, *pos2;
  41         int line = 0, vlan_id;
  42         struct hostapd_vlan *vlan;
  43
  44         f = fopen(fname, "r");
  45         if (!f) {
  46                 printf("VLAN file '%s' not readable.\n", fname);
  47                 return -1;
  48         }
  49
  50         while (fgets(buf, sizeof(buf), f)) {
  51                 line++;
  52
  53                 if (buf[0] == '#')
  54                         continue;
  55                 pos = buf;
  56                 while (*pos != '\0') {
  57                         if (*pos == '\n') {
  58                                 *pos = '\0';
  59                                 break;
  60                         }
  61                         pos++;
  62                 }
  63                 if (buf[0] == '\0')
  64                         continue;
  65
  66                 if (buf[0] == '*') {
  67                         vlan_id = VLAN_ID_WILDCARD;
  68                         pos = buf + 1;
  69                 } else {
  70                         vlan_id = strtol(buf, &pos, 10);
  71                         if (buf == pos || vlan_id < 1 ||
  72                             vlan_id > MAX_VLAN_ID) {
  73                                 printf("Invalid VLAN ID at line %d in '%s'\n",
  74                                        line, fname);
  75                                 fclose(f);
  76                                 return -1;
  77                         }
  78                 }
  79
  80                 while (*pos == ' ' || *pos == '\t')
  81                         pos++;
  82                 pos2 = pos;
  83                 while (*pos2 != ' ' && *pos2 != '\t' && *pos2 != '\0')
  84                         pos2++;
  85                 *pos2 = '\0';
  86                 if (*pos == '\0' || os_strlen(pos) > IFNAMSIZ) {
  87                         printf("Invalid VLAN ifname at line %d in '%s'\n",
  88                                line, fname);
  89                         fclose(f);
  90                         return -1;
  91                 }
  92
  93                 vlan = os_malloc(sizeof(*vlan));
  94                 if (vlan == NULL) {
  95                         printf("Out of memory while reading VLAN interfaces "
  96                                "from '%s'\n", fname);
  97                         fclose(f);
  98                         return -1;
  99                 }
 100
 101                 os_memset(vlan, 0, sizeof(*vlan));
 102                 vlan->vlan_id = vlan_id;
 103                 os_strlcpy(vlan->ifname, pos, sizeof(vlan->ifname));
 104                 if (bss->vlan_tail)
 105                         bss->vlan_tail->next = vlan;
 106                 else
 107                         bss->vlan = vlan;
 108                 bss->vlan_tail = vlan;
 109         }
 110
 111         fclose(f);
 112
 113         return 0;
 114 }
 115
 116
 117 static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
 118 {
 119         struct hostapd_vlan *vlan, *prev;
 120
 121         vlan = bss->vlan;
 122         prev = NULL;
 123         while (vlan) {
 124                 prev = vlan;
 125                 vlan = vlan->next;
 126                 os_free(prev);
 127         }
 128
 129         bss->vlan = NULL;
 130 }
 131
 132
 133 /* convert floats with one decimal place to value*10 int, i.e.,
 134  * "1.5" will return 15 */
 135 static int hostapd_config_read_int10(const char *value)
 136 {
 137         int i, d;
 138         char *pos;
 139
 140         i = atoi(value);
 141         pos = os_strchr(value, '.');
 142         d = 0;
 143         if (pos) {
 144                 pos++;
 145                 if (*pos >= '0' && *pos <= '9')
 146                         d = *pos - '0';
 147         }
 148
 149         return i * 10 + d;
 150 }
 151
 152
 153 static void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
 154 {
 155         bss->logger_syslog_level = HOSTAPD_LEVEL_INFO;
 156         bss->logger_stdout_level = HOSTAPD_LEVEL_INFO;
 157         bss->logger_syslog = (unsigned int) -1;
 158         bss->logger_stdout = (unsigned int) -1;
 159
 160         bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
 161
 162         bss->wep_rekeying_period = 300;
 163         /* use key0 in individual key and key1 in broadcast key */
 164         bss->broadcast_key_idx_min = 1;
 165         bss->broadcast_key_idx_max = 2;
 166         bss->eap_reauth_period = 3600;
 167
 168         bss->wpa_group_rekey = 600;
 169         bss->wpa_gmk_rekey = 86400;
 170         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
 171         bss->wpa_pairwise = WPA_CIPHER_TKIP;
 172         bss->wpa_group = WPA_CIPHER_TKIP;
 173         bss->rsn_pairwise = 0;
 174
 175         bss->max_num_sta = MAX_STA_COUNT;
 176
 177         bss->dtim_period = 2;
 178
 179         bss->radius_server_auth_port = 1812;
 180         bss->ap_max_inactivity = AP_MAX_INACTIVITY;
 181         bss->eapol_version = EAPOL_VERSION;
 182
 183         bss->max_listen_interval = 65535;
 184
 185 #ifdef CONFIG_IEEE80211W
 186         bss->assoc_ping_timeout = 1000;
 187         bss->assoc_ping_attempts = 3;
 188 #endif /* CONFIG_IEEE80211W */
 189 }
 190
 191
 192 static struct hostapd_config * hostapd_config_defaults(void)
 193 {
 194         struct hostapd_config *conf;
 195         struct hostapd_bss_config *bss;
 196         int i;
 197         const int aCWmin = 15, aCWmax = 1024;
 198         const struct hostapd_wme_ac_params ac_bk =
 199                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
 200         const struct hostapd_wme_ac_params ac_be =
 201                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
 202         const struct hostapd_wme_ac_params ac_vi = /* video traffic */
 203                 { aCWmin >> 1, aCWmin, 2, 3000 / 32, 1 };
 204         const struct hostapd_wme_ac_params ac_vo = /* voice traffic */
 205                 { aCWmin >> 2, aCWmin >> 1, 2, 1500 / 32, 1 };
 206
 207         conf = os_zalloc(sizeof(*conf));
 208         bss = os_zalloc(sizeof(*bss));
 209         if (conf == NULL || bss == NULL) {
 210                 printf("Failed to allocate memory for configuration data.\n");
 211                 os_free(conf);
 212                 os_free(bss);
 213                 return NULL;
 214         }
 215
 216         /* set default driver based on configuration */
 217         conf->driver = hostapd_drivers[0];
 218         if (conf->driver == NULL) {
 219                 printf("No driver wrappers registered!\n");
 220                 os_free(conf);
 221                 os_free(bss);
 222                 return NULL;
 223         }
 224
 225         bss->radius = os_zalloc(sizeof(*bss->radius));
 226         if (bss->radius == NULL) {
 227                 os_free(conf);
 228                 os_free(bss);
 229                 return NULL;
 230         }
 231
 232         hostapd_config_defaults_bss(bss);
 233
 234         conf->num_bss = 1;
 235         conf->bss = bss;
 236
 237         conf->beacon_int = 100;
 238         conf->rts_threshold = -1; /* use driver default: 2347 */
 239         conf->fragm_threshold = -1; /* user driver default: 2346 */
 240         conf->send_probe_response = 1;
 241         conf->bridge_packets = INTERNAL_BRIDGE_DO_NOT_CONTROL;
 242
 243         os_memcpy(conf->country, "US ", 3);
 244
 245         for (i = 0; i < NUM_TX_QUEUES; i++)
 246                 conf->tx_queue[i].aifs = -1; /* use hw default */
 247
 248         conf->wme_ac_params[0] = ac_be;
 249         conf->wme_ac_params[1] = ac_bk;
 250         conf->wme_ac_params[2] = ac_vi;
 251         conf->wme_ac_params[3] = ac_vo;
 252
 253 #ifdef CONFIG_IEEE80211N
 254         SET_2BIT_LE16(&conf->ht_capab,
 255                       HT_CAP_INFO_MIMO_PWR_SAVE_OFFSET,
 256                       MIMO_PWR_NO_LIMIT_ON_MIMO_SEQS);
 257
 258         conf->ht_capab |= HT_CAP_INFO_GREEN_FIELD;
 259 #endif /* CONFIG_IEEE80211N */
 260
 261         return conf;
 262 }
 263
 264
 265 int hostapd_mac_comp(const void *a, const void *b)
 266 {
 267         return os_memcmp(a, b, sizeof(macaddr));
 268 }
 269
 270
 271 int hostapd_mac_comp_empty(const void *a)
 272 {
 273         macaddr empty = { 0 };
 274         return os_memcmp(a, empty, sizeof(macaddr));
 275 }
 276
 277
 278 static int hostapd_acl_comp(const void *a, const void *b)
 279 {
 280         const struct mac_acl_entry *aa = a;
 281         const struct mac_acl_entry *bb = b;
 282         return os_memcmp(aa->addr, bb->addr, sizeof(macaddr));
 283 }
 284
 285
 286 static int hostapd_config_read_maclist(const char *fname,
 287                                        struct mac_acl_entry **acl, int *num)
 288 {
 289         FILE *f;
 290         char buf[128], *pos;
 291         int line = 0;
 292         u8 addr[ETH_ALEN];
 293         struct mac_acl_entry *newacl;
 294         int vlan_id;
 295
 296         if (!fname)
 297                 return 0;
 298
 299         f = fopen(fname, "r");
 300         if (!f) {
 301                 printf("MAC list file '%s' not found.\n", fname);
 302                 return -1;
 303         }
 304
 305         while (fgets(buf, sizeof(buf), f)) {
 306                 line++;
 307
 308                 if (buf[0] == '#')
 309                         continue;
 310                 pos = buf;
 311                 while (*pos != '\0') {
 312                         if (*pos == '\n') {
 313                                 *pos = '\0';
 314                                 break;
 315                         }
 316                         pos++;
 317                 }
 318                 if (buf[0] == '\0')
 319                         continue;
 320
 321                 if (hwaddr_aton(buf, addr)) {
 322                         printf("Invalid MAC address '%s' at line %d in '%s'\n",
 323                                buf, line, fname);
 324                         fclose(f);
 325                         return -1;
 326                 }
 327
 328                 vlan_id = 0;
 329                 pos = buf;
 330                 while (*pos != '\0' && *pos != ' ' && *pos != '\t')
 331                         pos++;
 332                 while (*pos == ' ' || *pos == '\t')
 333                         pos++;
 334                 if (*pos != '\0')
 335                         vlan_id = atoi(pos);
 336
 337                 newacl = os_realloc(*acl, (*num + 1) * sizeof(**acl));
 338                 if (newacl == NULL) {
 339                         printf("MAC list reallocation failed\n");
 340                         fclose(f);
 341                         return -1;
 342                 }
 343
 344                 *acl = newacl;
 345                 os_memcpy((*acl)[*num].addr, addr, ETH_ALEN);
 346                 (*acl)[*num].vlan_id = vlan_id;
 347                 (*num)++;
 348         }
 349
 350         fclose(f);
 351
 352         qsort(*acl, *num, sizeof(**acl), hostapd_acl_comp);
 353
 354         return 0;
 355 }
 356
 357
 358 static int hostapd_config_read_wpa_psk(const char *fname,
 359                                        struct hostapd_ssid *ssid)
 360 {
 361         FILE *f;
 362         char buf[128], *pos;
 363         int line = 0, ret = 0, len, ok;
 364         u8 addr[ETH_ALEN];
 365         struct hostapd_wpa_psk *psk;
 366
 367         if (!fname)
 368                 return 0;
 369
 370         f = fopen(fname, "r");
 371         if (!f) {
 372                 printf("WPA PSK file '%s' not found.\n", fname);
 373                 return -1;
 374         }
 375
 376         while (fgets(buf, sizeof(buf), f)) {
 377                 line++;
 378
 379                 if (buf[0] == '#')
 380                         continue;
 381                 pos = buf;
 382                 while (*pos != '\0') {
 383                         if (*pos == '\n') {
 384                                 *pos = '\0';
 385                                 break;
 386                         }
 387                         pos++;
 388                 }
 389                 if (buf[0] == '\0')
 390                         continue;
 391
 392                 if (hwaddr_aton(buf, addr)) {
 393                         printf("Invalid MAC address '%s' on line %d in '%s'\n",
 394                                buf, line, fname);
 395                         ret = -1;
 396                         break;
 397                 }
 398
 399                 psk = os_zalloc(sizeof(*psk));
 400                 if (psk == NULL) {
 401                         printf("WPA PSK allocation failed\n");
 402                         ret = -1;
 403                         break;
 404                 }
 405                 if (is_zero_ether_addr(addr))
 406                         psk->group = 1;
 407                 else
 408                         os_memcpy(psk->addr, addr, ETH_ALEN);
 409
 410                 pos = buf + 17;
 411                 if (pos == '\0') {
 412                         printf("No PSK on line %d in '%s'\n", line, fname);
 413                         os_free(psk);
 414                         ret = -1;
 415                         break;
 416                 }
 417                 pos++;
 418
 419                 ok = 0;
 420                 len = os_strlen(pos);
 421                 if (len == 64 && hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
 422                         ok = 1;
 423                 else if (len >= 8 && len < 64) {
 424                         pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
 425                                     4096, psk->psk, PMK_LEN);
 426                         ok = 1;
 427                 }
 428                 if (!ok) {
 429                         printf("Invalid PSK '%s' on line %d in '%s'\n",
 430                                pos, line, fname);
 431                         os_free(psk);
 432                         ret = -1;
 433                         break;
 434                 }
 435
 436                 psk->next = ssid->wpa_psk;
 437                 ssid->wpa_psk = psk;
 438         }
 439
 440         fclose(f);
 441
 442         return ret;
 443 }
 444
 445
 446 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
 447 {
 448         struct hostapd_ssid *ssid = &conf->ssid;
 449
 450         if (ssid->wpa_passphrase != NULL) {
 451                 if (ssid->wpa_psk != NULL) {
 452                         printf("Warning: both WPA PSK and passphrase set. "
 453                                "Using passphrase.\n");
 454                         os_free(ssid->wpa_psk);
 455                 }
 456                 ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 457                 if (ssid->wpa_psk == NULL) {
 458                         printf("Unable to alloc space for PSK\n");
 459                         return -1;
 460                 }
 461                 wpa_hexdump_ascii(MSG_DEBUG, "SSID",
 462                                   (u8 *) ssid->ssid, ssid->ssid_len);
 463                 wpa_hexdump_ascii(MSG_DEBUG, "PSK (ASCII passphrase)",
 464                                   (u8 *) ssid->wpa_passphrase,
 465                                   os_strlen(ssid->wpa_passphrase));
 466                 pbkdf2_sha1(ssid->wpa_passphrase,
 467                             ssid->ssid, ssid->ssid_len,
 468                             4096, ssid->wpa_psk->psk, PMK_LEN);
 469                 wpa_hexdump(MSG_DEBUG, "PSK (from passphrase)",
 470                             ssid->wpa_psk->psk, PMK_LEN);
 471                 ssid->wpa_psk->group = 1;
 472
 473                 os_memset(ssid->wpa_passphrase, 0,
 474                           os_strlen(ssid->wpa_passphrase));
 475                 os_free(ssid->wpa_passphrase);
 476                 ssid->wpa_passphrase = NULL;
 477         }
 478
 479         if (ssid->wpa_psk_file) {
 480                 if (hostapd_config_read_wpa_psk(ssid->wpa_psk_file,
 481                                                 &conf->ssid))
 482                         return -1;
 483         }
 484
 485         return 0;
 486 }
 487
 488
 489 #ifdef EAP_SERVER
 490 static int hostapd_config_read_eap_user(const char *fname,
 491                                         struct hostapd_bss_config *conf)
 492 {
 493         FILE *f;
 494         char buf[512], *pos, *start, *pos2;
 495         int line = 0, ret = 0, num_methods;
 496         struct hostapd_eap_user *user, *tail = NULL;
 497
 498         if (!fname)
 499                 return 0;
 500
 501         f = fopen(fname, "r");
 502         if (!f) {
 503                 printf("EAP user file '%s' not found.\n", fname);
 504                 return -1;
 505         }
 506
 507         /* Lines: "user" METHOD,METHOD2 "password" (password optional) */
 508         while (fgets(buf, sizeof(buf), f)) {
 509                 line++;
 510
 511                 if (buf[0] == '#')
 512                         continue;
 513                 pos = buf;
 514                 while (*pos != '\0') {
 515                         if (*pos == '\n') {
 516                                 *pos = '\0';
 517                                 break;
 518                         }
 519                         pos++;
 520                 }
 521                 if (buf[0] == '\0')
 522                         continue;
 523
 524                 user = NULL;
 525
 526                 if (buf[0] != '"' && buf[0] != '*') {
 527                         printf("Invalid EAP identity (no \" in start) on "
 528                                "line %d in '%s'\n", line, fname);
 529                         goto failed;
 530                 }
 531
 532                 user = os_zalloc(sizeof(*user));
 533                 if (user == NULL) {
 534                         printf("EAP user allocation failed\n");
 535                         goto failed;
 536                 }
 537                 user->force_version = -1;
 538
 539                 if (buf[0] == '*') {
 540                         pos = buf;
 541                 } else {
 542                         pos = buf + 1;
 543                         start = pos;
 544                         while (*pos != '"' && *pos != '\0')
 545                                 pos++;
 546                         if (*pos == '\0') {
 547                                 printf("Invalid EAP identity (no \" in end) on"
 548                                        " line %d in '%s'\n", line, fname);
 549                                 goto failed;
 550                         }
 551
 552                         user->identity = os_malloc(pos - start);
 553                         if (user->identity == NULL) {
 554                                 printf("Failed to allocate memory for EAP "
 555                                        "identity\n");
 556                                 goto failed;
 557                         }
 558                         os_memcpy(user->identity, start, pos - start);
 559                         user->identity_len = pos - start;
 560
 561                         if (pos[0] == '"' && pos[1] == '*') {
 562                                 user->wildcard_prefix = 1;
 563                                 pos++;
 564                         }
 565                 }
 566                 pos++;
 567                 while (*pos == ' ' || *pos == '\t')
 568                         pos++;
 569
 570                 if (*pos == '\0') {
 571                         printf("No EAP method on line %d in '%s'\n",
 572                                line, fname);
 573                         goto failed;
 574                 }
 575
 576                 start = pos;
 577                 while (*pos != ' ' && *pos != '\t' && *pos != '\0')
 578                         pos++;
 579                 if (*pos == '\0') {
 580                         pos = NULL;
 581                 } else {
 582                         *pos = '\0';
 583                         pos++;
 584                 }
 585                 num_methods = 0;
 586                 while (*start) {
 587                         char *pos3 = os_strchr(start, ',');
 588                         if (pos3) {
 589                                 *pos3++ = '\0';
 590                         }
 591                         user->methods[num_methods].method =
 592                                 eap_server_get_type(
 593                                         start,
 594                                         &user->methods[num_methods].vendor);
 595                         if (user->methods[num_methods].vendor ==
 596                             EAP_VENDOR_IETF &&
 597                             user->methods[num_methods].method == EAP_TYPE_NONE)
 598                         {
 599                                 if (os_strcmp(start, "TTLS-PAP") == 0) {
 600                                         user->ttls_auth |= EAP_TTLS_AUTH_PAP;
 601                                         goto skip_eap;
 602                                 }
 603                                 if (os_strcmp(start, "TTLS-CHAP") == 0) {
 604                                         user->ttls_auth |= EAP_TTLS_AUTH_CHAP;
 605                                         goto skip_eap;
 606                                 }
 607                                 if (os_strcmp(start, "TTLS-MSCHAP") == 0) {
 608                                         user->ttls_auth |=
 609                                                 EAP_TTLS_AUTH_MSCHAP;
 610                                         goto skip_eap;
 611                                 }
 612                                 if (os_strcmp(start, "TTLS-MSCHAPV2") == 0) {
 613                                         user->ttls_auth |=
 614                                                 EAP_TTLS_AUTH_MSCHAPV2;
 615                                         goto skip_eap;
 616                                 }
 617                                 printf("Unsupported EAP type '%s' on line %d "
 618                                        "in '%s'\n", start, line, fname);
 619                                 goto failed;
 620                         }
 621
 622                         num_methods++;
 623                         if (num_methods >= EAP_USER_MAX_METHODS)
 624                                 break;
 625                 skip_eap:
 626                         if (pos3 == NULL)
 627                                 break;
 628                         start = pos3;
 629                 }
 630                 if (num_methods == 0 && user->ttls_auth == 0) {
 631                         printf("No EAP types configured on line %d in '%s'\n",
 632                                line, fname);
 633                         goto failed;
 634                 }
 635
 636                 if (pos == NULL)
 637                         goto done;
 638
 639                 while (*pos == ' ' || *pos == '\t')
 640                         pos++;
 641                 if (*pos == '\0')
 642                         goto done;
 643
 644                 if (os_strncmp(pos, "[ver=0]", 7) == 0) {
 645                         user->force_version = 0;
 646                         goto done;
 647                 }
 648
 649                 if (os_strncmp(pos, "[ver=1]", 7) == 0) {
 650                         user->force_version = 1;
 651                         goto done;
 652                 }
 653
 654                 if (os_strncmp(pos, "[2]", 3) == 0) {
 655                         user->phase2 = 1;
 656                         goto done;
 657                 }
 658
 659                 if (*pos == '"') {
 660                         pos++;
 661                         start = pos;
 662                         while (*pos != '"' && *pos != '\0')
 663                                 pos++;
 664                         if (*pos == '\0') {
 665                                 printf("Invalid EAP password (no \" in end) "
 666                                        "on line %d in '%s'\n", line, fname);
 667                                 goto failed;
 668                         }
 669
 670                         user->password = os_malloc(pos - start);
 671                         if (user->password == NULL) {
 672                                 printf("Failed to allocate memory for EAP "
 673                                        "password\n");
 674                                 goto failed;
 675                         }
 676                         os_memcpy(user->password, start, pos - start);
 677                         user->password_len = pos - start;
 678
 679                         pos++;
 680                 } else if (os_strncmp(pos, "hash:", 5) == 0) {
 681                         pos += 5;
 682                         pos2 = pos;
 683                         while (*pos2 != '\0' && *pos2 != ' ' &&
 684                                *pos2 != '\t' && *pos2 != '#')
 685                                 pos2++;
 686                         if (pos2 - pos != 32) {
 687                                 printf("Invalid password hash on line %d in "
 688                                        "'%s'\n", line, fname);
 689                                 goto failed;
 690                         }
 691                         user->password = os_malloc(16);
 692                         if (user->password == NULL) {
 693                                 printf("Failed to allocate memory for EAP "
 694                                        "password hash\n");
 695                                 goto failed;
 696                         }
 697                         if (hexstr2bin(pos, user->password, 16) < 0) {
 698                                 printf("Invalid hash password on line %d in "
 699                                        "'%s'\n", line, fname);
 700                                 goto failed;
 701                         }
 702                         user->password_len = 16;
 703                         user->password_hash = 1;
 704                         pos = pos2;
 705                 } else {
 706                         pos2 = pos;
 707                         while (*pos2 != '\0' && *pos2 != ' ' &&
 708                                *pos2 != '\t' && *pos2 != '#')
 709                                 pos2++;
 710                         if ((pos2 - pos) & 1) {
 711                                 printf("Invalid hex password on line %d in "
 712                                        "'%s'\n", line, fname);
 713                                 goto failed;
 714                         }
 715                         user->password = os_malloc((pos2 - pos) / 2);
 716                         if (user->password == NULL) {
 717                                 printf("Failed to allocate memory for EAP "
 718                                        "password\n");
 719                                 goto failed;
 720                         }
 721                         if (hexstr2bin(pos, user->password,
 722                                        (pos2 - pos) / 2) < 0) {
 723                                 printf("Invalid hex password on line %d in "
 724                                        "'%s'\n", line, fname);
 725                                 goto failed;
 726                         }
 727                         user->password_len = (pos2 - pos) / 2;
 728                         pos = pos2;
 729                 }
 730
 731                 while (*pos == ' ' || *pos == '\t')
 732                         pos++;
 733                 if (os_strncmp(pos, "[2]", 3) == 0) {
 734                         user->phase2 = 1;
 735                 }
 736
 737         done:
 738                 if (tail == NULL) {
 739                         tail = conf->eap_user = user;
 740                 } else {
 741                         tail->next = user;
 742                         tail = user;
 743                 }
 744                 continue;
 745
 746         failed:
 747                 if (user) {
 748                         os_free(user->password);
 749                         os_free(user->identity);
 750                         os_free(user);
 751                 }
 752                 ret = -1;
 753                 break;
 754         }
 755
 756         fclose(f);
 757
 758         return ret;
 759 }
 760 #endif /* EAP_SERVER */
 761
 762
 763 static int
 764 hostapd_config_read_radius_addr(struct hostapd_radius_server **server,
 765                                 int *num_server, const char *val, int def_port,
 766                                 struct hostapd_radius_server **curr_serv)
 767 {
 768         struct hostapd_radius_server *nserv;
 769         int ret;
 770         static int server_index = 1;
 771
 772         nserv = os_realloc(*server, (*num_server + 1) * sizeof(*nserv));
 773         if (nserv == NULL)
 774                 return -1;
 775
 776         *server = nserv;
 777         nserv = &nserv[*num_server];
 778         (*num_server)++;
 779         (*curr_serv) = nserv;
 780
 781         os_memset(nserv, 0, sizeof(*nserv));
 782         nserv->port = def_port;
 783         ret = hostapd_parse_ip_addr(val, &nserv->addr);
 784         nserv->index = server_index++;
 785
 786         return ret;
 787 }
 788
 789
 790 static int hostapd_config_parse_key_mgmt(int line, const char *value)
 791 {
 792         int val = 0, last;
 793         char *start, *end, *buf;
 794
 795         buf = os_strdup(value);
 796         if (buf == NULL)
 797                 return -1;
 798         start = buf;
 799
 800         while (start != '\0') {
 801                 while (*start == ' ' || *start == '\t')
 802                         start++;
 803                 if (*start == '\0')
 804                         break;
 805                 end = start;
 806                 while (*end != ' ' && *end != '\t' && *end != '\0')
 807                         end++;
 808                 last = *end == '\0';
 809                 *end = '\0';
 810                 if (os_strcmp(start, "WPA-PSK") == 0)
 811                         val |= WPA_KEY_MGMT_PSK;
 812                 else if (os_strcmp(start, "WPA-EAP") == 0)
 813                         val |= WPA_KEY_MGMT_IEEE8021X;
 814 #ifdef CONFIG_IEEE80211R
 815                 else if (os_strcmp(start, "FT-PSK") == 0)
 816                         val |= WPA_KEY_MGMT_FT_PSK;
 817                 else if (os_strcmp(start, "FT-EAP") == 0)
 818                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 819 #endif /* CONFIG_IEEE80211R */
 820                 else {
 821                         printf("Line %d: invalid key_mgmt '%s'\n",
 822                                line, start);
 823                         os_free(buf);
 824                         return -1;
 825                 }
 826
 827                 if (last)
 828                         break;
 829                 start = end + 1;
 830         }
 831
 832         os_free(buf);
 833         if (val == 0) {
 834                 printf("Line %d: no key_mgmt values configured.\n", line);
 835                 return -1;
 836         }
 837
 838         return val;
 839 }
 840
 841
 842 static int hostapd_config_parse_cipher(int line, const char *value)
 843 {
 844         int val = 0, last;
 845         char *start, *end, *buf;
 846
 847         buf = os_strdup(value);
 848         if (buf == NULL)
 849                 return -1;
 850         start = buf;
 851
 852         while (start != '\0') {
 853                 while (*start == ' ' || *start == '\t')
 854                         start++;
 855                 if (*start == '\0')
 856                         break;
 857                 end = start;
 858                 while (*end != ' ' && *end != '\t' && *end != '\0')
 859                         end++;
 860                 last = *end == '\0';
 861                 *end = '\0';
 862                 if (os_strcmp(start, "CCMP") == 0)
 863                         val |= WPA_CIPHER_CCMP;
 864                 else if (os_strcmp(start, "TKIP") == 0)
 865                         val |= WPA_CIPHER_TKIP;
 866                 else if (os_strcmp(start, "WEP104") == 0)
 867                         val |= WPA_CIPHER_WEP104;
 868                 else if (os_strcmp(start, "WEP40") == 0)
 869                         val |= WPA_CIPHER_WEP40;
 870                 else if (os_strcmp(start, "NONE") == 0)
 871                         val |= WPA_CIPHER_NONE;
 872                 else {
 873                         printf("Line %d: invalid cipher '%s'.", line, start);
 874                         os_free(buf);
 875                         return -1;
 876                 }
 877
 878                 if (last)
 879                         break;
 880                 start = end + 1;
 881         }
 882         os_free(buf);
 883
 884         if (val == 0) {
 885                 printf("Line %d: no cipher values configured.", line);
 886                 return -1;
 887         }
 888         return val;
 889 }
 890
 891
 892 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
 893                                     struct hostapd_config *conf)
 894 {
 895         if (bss->ieee802_1x && !bss->eap_server &&
 896             !bss->radius->auth_servers) {
 897                 printf("Invalid IEEE 802.1X configuration (no EAP "
 898                        "authenticator configured).\n");
 899                 return -1;
 900         }
 901
 902         if (bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
 903             bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
 904             bss->ssid.wpa_psk_file == NULL) {
 905                 printf("WPA-PSK enabled, but PSK or passphrase is not "
 906                        "configured.\n");
 907                 return -1;
 908         }
 909
 910         if (hostapd_mac_comp_empty(bss->bssid) != 0) {
 911                 size_t i;
 912
 913                 for (i = 0; i < conf->num_bss; i++) {
 914                         if ((&conf->bss[i] != bss) &&
 915                             (hostapd_mac_comp(conf->bss[i].bssid,
 916                                               bss->bssid) == 0)) {
 917                                 printf("Duplicate BSSID " MACSTR
 918                                        " on interface '%s' and '%s'.\n",
 919                                        MAC2STR(bss->bssid),
 920                                        conf->bss[i].iface, bss->iface);
 921                                 return -1;
 922                         }
 923                 }
 924         }
 925
 926 #ifdef CONFIG_IEEE80211R
 927         if ((bss->wpa_key_mgmt &
 928              (WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X)) &&
 929             (bss->nas_identifier == NULL ||
 930              os_strlen(bss->nas_identifier) < 1 ||
 931              os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
 932                 printf("FT (IEEE 802.11r) requires nas_identifier to be "
 933                        "configured as a 1..48 octet string\n");
 934                 return -1;
 935         }
 936 #endif /* CONFIG_IEEE80211R */
 937
 938         return 0;
 939 }
 940
 941
 942 static int hostapd_config_check(struct hostapd_config *conf)
 943 {
 944         size_t i;
 945
 946         for (i = 0; i < conf->num_bss; i++) {
 947                 if (hostapd_config_check_bss(&conf->bss[i], conf))
 948                         return -1;
 949         }
 950
 951         return 0;
 952 }
 953
 954
 955 static int hostapd_config_read_wep(struct hostapd_wep_keys *wep, int keyidx,
 956                                    char *val)
 957 {
 958         size_t len = os_strlen(val);
 959
 960         if (keyidx < 0 || keyidx > 3 || wep->key[keyidx] != NULL)
 961                 return -1;
 962
 963         if (val[0] == '"') {
 964                 if (len < 2 || val[len - 1] != '"')
 965                         return -1;
 966                 len -= 2;
 967                 wep->key[keyidx] = os_malloc(len);
 968                 if (wep->key[keyidx] == NULL)
 969                         return -1;
 970                 os_memcpy(wep->key[keyidx], val + 1, len);
 971                 wep->len[keyidx] = len;
 972         } else {
 973                 if (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                 wep->len[keyidx] = len;
 980                 if (hexstr2bin(val, wep->key[keyidx], len) < 0)
 981                         return -1;
 982         }
 983
 984         wep->keys_set++;
 985
 986         return 0;
 987 }
 988
 989
 990 static int hostapd_parse_rates(int **rate_list, char *val)
 991 {
 992         int *list;
 993         int count;
 994         char *pos, *end;
 995
 996         os_free(*rate_list);
 997         *rate_list = NULL;
 998
 999         pos = val;
1000         count = 0;
1001         while (*pos != '\0') {
1002                 if (*pos == ' ')
1003                         count++;
1004                 pos++;
1005         }
1006
1007         list = os_malloc(sizeof(int) * (count + 2));
1008         if (list == NULL)
1009                 return -1;
1010         pos = val;
1011         count = 0;
1012         while (*pos != '\0') {
1013                 end = os_strchr(pos, ' ');
1014                 if (end)
1015                         *end = '\0';
1016
1017                 list[count++] = atoi(pos);
1018                 if (!end)
1019                         break;
1020                 pos = end + 1;
1021         }
1022         list[count] = -1;
1023
1024         *rate_list = list;
1025         return 0;
1026 }
1027
1028
1029 static int hostapd_config_bss(struct hostapd_config *conf, const char *ifname)
1030 {
1031         struct hostapd_bss_config *bss;
1032
1033         if (*ifname == '\0')
1034                 return -1;
1035
1036         bss = os_realloc(conf->bss, (conf->num_bss + 1) *
1037                          sizeof(struct hostapd_bss_config));
1038         if (bss == NULL) {
1039                 printf("Failed to allocate memory for multi-BSS entry\n");
1040                 return -1;
1041         }
1042         conf->bss = bss;
1043
1044         bss = &(conf->bss[conf->num_bss]);
1045         os_memset(bss, 0, sizeof(*bss));
1046         bss->radius = os_zalloc(sizeof(*bss->radius));
1047         if (bss->radius == NULL) {
1048                 printf("Failed to allocate memory for multi-BSS RADIUS "
1049                        "data\n");
1050                 return -1;
1051         }
1052
1053         conf->num_bss++;
1054         conf->last_bss = bss;
1055
1056         hostapd_config_defaults_bss(bss);
1057         os_strlcpy(bss->iface, ifname, sizeof(bss->iface));
1058         os_memcpy(bss->ssid.vlan, bss->iface, IFNAMSIZ + 1);
1059
1060         return 0;
1061 }
1062
1063
1064 static int valid_cw(int cw)
1065 {
1066         return (cw == 1 || cw == 3 || cw == 7 || cw == 15 || cw == 31 ||
1067                 cw == 63 || cw == 127 || cw == 255 || cw == 511 || cw == 1023);
1068 }
1069
1070
1071 enum {
1072         IEEE80211_TX_QUEUE_DATA0 = 0, /* used for EDCA AC_VO data */
1073         IEEE80211_TX_QUEUE_DATA1 = 1, /* used for EDCA AC_VI data */
1074         IEEE80211_TX_QUEUE_DATA2 = 2, /* used for EDCA AC_BE data */
1075         IEEE80211_TX_QUEUE_DATA3 = 3, /* used for EDCA AC_BK data */
1076         IEEE80211_TX_QUEUE_DATA4 = 4,
1077         IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
1078         IEEE80211_TX_QUEUE_BEACON = 7
1079 };
1080
1081 static int hostapd_config_tx_queue(struct hostapd_config *conf, char *name,
1082                                    char *val)
1083 {
1084         int num;
1085         char *pos;
1086         struct hostapd_tx_queue_params *queue;
1087
1088         /* skip 'tx_queue_' prefix */
1089         pos = name + 9;
1090         if (os_strncmp(pos, "data", 4) == 0 &&
1091             pos[4] >= '0' && pos[4] <= '9' && pos[5] == '_') {
1092                 num = pos[4] - '0';
1093                 pos += 6;
1094         } else if (os_strncmp(pos, "after_beacon_", 13) == 0) {
1095                 num = IEEE80211_TX_QUEUE_AFTER_BEACON;
1096                 pos += 13;
1097         } else if (os_strncmp(pos, "beacon_", 7) == 0) {
1098                 num = IEEE80211_TX_QUEUE_BEACON;
1099                 pos += 7;
1100         } else {
1101                 printf("Unknown tx_queue name '%s'\n", pos);
1102                 return -1;
1103         }
1104
1105         queue = &conf->tx_queue[num];
1106
1107         if (os_strcmp(pos, "aifs") == 0) {
1108                 queue->aifs = atoi(val);
1109                 if (queue->aifs < 0 || queue->aifs > 255) {
1110                         printf("Invalid AIFS value %d\n", queue->aifs);
1111                         return -1;
1112                 }
1113         } else if (os_strcmp(pos, "cwmin") == 0) {
1114                 queue->cwmin = atoi(val);
1115                 if (!valid_cw(queue->cwmin)) {
1116                         printf("Invalid cwMin value %d\n", queue->cwmin);
1117                         return -1;
1118                 }
1119         } else if (os_strcmp(pos, "cwmax") == 0) {
1120                 queue->cwmax = atoi(val);
1121                 if (!valid_cw(queue->cwmax)) {
1122                         printf("Invalid cwMax value %d\n", queue->cwmax);
1123                         return -1;
1124                 }
1125         } else if (os_strcmp(pos, "burst") == 0) {
1126                 queue->burst = hostapd_config_read_int10(val);
1127         } else {
1128                 printf("Unknown tx_queue field '%s'\n", pos);
1129                 return -1;
1130         }
1131
1132         queue->configured = 1;
1133
1134         return 0;
1135 }
1136
1137
1138 static int hostapd_config_wme_ac(struct hostapd_config *conf, char *name,
1139                                    char *val)
1140 {
1141         int num, v;
1142         char *pos;
1143         struct hostapd_wme_ac_params *ac;
1144
1145         /* skip 'wme_ac_' prefix */
1146         pos = name + 7;
1147         if (os_strncmp(pos, "be_", 3) == 0) {
1148                 num = 0;
1149                 pos += 3;
1150         } else if (os_strncmp(pos, "bk_", 3) == 0) {
1151                 num = 1;
1152                 pos += 3;
1153         } else if (os_strncmp(pos, "vi_", 3) == 0) {
1154                 num = 2;
1155                 pos += 3;
1156         } else if (os_strncmp(pos, "vo_", 3) == 0) {
1157                 num = 3;
1158                 pos += 3;
1159         } else {
1160                 printf("Unknown wme name '%s'\n", pos);
1161                 return -1;
1162         }
1163
1164         ac = &conf->wme_ac_params[num];
1165
1166         if (os_strcmp(pos, "aifs") == 0) {
1167                 v = atoi(val);
1168                 if (v < 1 || v > 255) {
1169                         printf("Invalid AIFS value %d\n", v);
1170                         return -1;
1171                 }
1172                 ac->aifs = v;
1173         } else if (os_strcmp(pos, "cwmin") == 0) {
1174                 v = atoi(val);
1175                 if (v < 0 || v > 12) {
1176                         printf("Invalid cwMin value %d\n", v);
1177                         return -1;
1178                 }
1179                 ac->cwmin = v;
1180         } else if (os_strcmp(pos, "cwmax") == 0) {
1181                 v = atoi(val);
1182                 if (v < 0 || v > 12) {
1183                         printf("Invalid cwMax value %d\n", v);
1184                         return -1;
1185                 }
1186                 ac->cwmax = v;
1187         } else if (os_strcmp(pos, "txop_limit") == 0) {
1188                 v = atoi(val);
1189                 if (v < 0 || v > 0xffff) {
1190                         printf("Invalid txop value %d\n", v);
1191                         return -1;
1192                 }
1193                 ac->txopLimit = v;
1194         } else if (os_strcmp(pos, "acm") == 0) {
1195                 v = atoi(val);
1196                 if (v < 0 || v > 1) {
1197                         printf("Invalid acm value %d\n", v);
1198                         return -1;
1199                 }
1200                 ac->admission_control_mandatory = v;
1201         } else {
1202                 printf("Unknown wme_ac_ field '%s'\n", pos);
1203                 return -1;
1204         }
1205
1206         return 0;
1207 }
1208
1209
1210 #ifdef CONFIG_IEEE80211R
1211 static int add_r0kh(struct hostapd_bss_config *bss, char *value)
1212 {
1213         struct ft_remote_r0kh *r0kh;
1214         char *pos, *next;
1215
1216         r0kh = os_zalloc(sizeof(*r0kh));
1217         if (r0kh == NULL)
1218                 return -1;
1219
1220         /* 02:01:02:03:04:05 a.example.com 000102030405060708090a0b0c0d0e0f */
1221         pos = value;
1222         next = os_strchr(pos, ' ');
1223         if (next)
1224                 *next++ = '\0';
1225         if (next == NULL || hwaddr_aton(pos, r0kh->addr)) {
1226                 printf("Invalid R0KH MAC address: '%s'\n", pos);
1227                 os_free(r0kh);
1228                 return -1;
1229         }
1230
1231         pos = next;
1232         next = os_strchr(pos, ' ');
1233         if (next)
1234                 *next++ = '\0';
1235         if (next == NULL || next - pos > FT_R0KH_ID_MAX_LEN) {
1236                 printf("Invalid R0KH-ID: '%s'\n", pos);
1237                 os_free(r0kh);
1238                 return -1;
1239         }
1240         r0kh->id_len = next - pos - 1;
1241         os_memcpy(r0kh->id, pos, r0kh->id_len);
1242
1243         pos = next;
1244         if (hexstr2bin(pos, r0kh->key, sizeof(r0kh->key))) {
1245                 printf("Invalid R0KH key: '%s'\n", pos);
1246                 os_free(r0kh);
1247                 return -1;
1248         }
1249
1250         r0kh->next = bss->r0kh_list;
1251         bss->r0kh_list = r0kh;
1252
1253         return 0;
1254 }
1255
1256
1257 static int add_r1kh(struct hostapd_bss_config *bss, char *value)
1258 {
1259         struct ft_remote_r1kh *r1kh;
1260         char *pos, *next;
1261
1262         r1kh = os_zalloc(sizeof(*r1kh));
1263         if (r1kh == NULL)
1264                 return -1;
1265
1266         /* 02:01:02:03:04:05 02:01:02:03:04:05
1267          * 000102030405060708090a0b0c0d0e0f */
1268         pos = value;
1269         next = os_strchr(pos, ' ');
1270         if (next)
1271                 *next++ = '\0';
1272         if (next == NULL || hwaddr_aton(pos, r1kh->addr)) {
1273                 printf("Invalid R1KH MAC address: '%s'\n", pos);
1274                 os_free(r1kh);
1275                 return -1;
1276         }
1277
1278         pos = next;
1279         next = os_strchr(pos, ' ');
1280         if (next)
1281                 *next++ = '\0';
1282         if (next == NULL || hwaddr_aton(pos, r1kh->id)) {
1283                 printf("Invalid R1KH-ID: '%s'\n", pos);
1284                 os_free(r1kh);
1285                 return -1;
1286         }
1287
1288         pos = next;
1289         if (hexstr2bin(pos, r1kh->key, sizeof(r1kh->key))) {
1290                 printf("Invalid R1KH key: '%s'\n", pos);
1291                 os_free(r1kh);
1292                 return -1;
1293         }
1294
1295         r1kh->next = bss->r1kh_list;
1296         bss->r1kh_list = r1kh;
1297
1298         return 0;
1299 }
1300 #endif /* CONFIG_IEEE80211R */
1301
1302
1303 struct hostapd_config * hostapd_config_read(const char *fname)
1304 {
1305         struct hostapd_config *conf;
1306         struct hostapd_bss_config *bss;
1307         FILE *f;
1308         char buf[256], *pos;
1309         int line = 0;
1310         int errors = 0;
1311         int pairwise;
1312         size_t i;
1313
1314         f = fopen(fname, "r");
1315         if (f == NULL) {
1316                 printf("Could not open configuration file '%s' for reading.\n",
1317                        fname);
1318                 return NULL;
1319         }
1320
1321         conf = hostapd_config_defaults();
1322         if (conf == NULL) {
1323                 fclose(f);
1324                 return NULL;
1325         }
1326         bss = conf->last_bss = conf->bss;
1327
1328         while (fgets(buf, sizeof(buf), f)) {
1329                 bss = conf->last_bss;
1330                 line++;
1331
1332                 if (buf[0] == '#')
1333                         continue;
1334                 pos = buf;
1335                 while (*pos != '\0') {
1336                         if (*pos == '\n') {
1337                                 *pos = '\0';
1338                                 break;
1339                         }
1340                         pos++;
1341                 }
1342                 if (buf[0] == '\0')
1343                         continue;
1344
1345                 pos = os_strchr(buf, '=');
1346                 if (pos == NULL) {
1347                         printf("Line %d: invalid line '%s'\n", line, buf);
1348                         errors++;
1349                         continue;
1350                 }
1351                 *pos = '\0';
1352                 pos++;
1353
1354                 if (os_strcmp(buf, "interface") == 0) {
1355                         os_strlcpy(conf->bss[0].iface, pos,
1356                                    sizeof(conf->bss[0].iface));
1357                 } else if (os_strcmp(buf, "bridge") == 0) {
1358                         os_strlcpy(bss->bridge, pos, sizeof(bss->bridge));
1359                 } else if (os_strcmp(buf, "driver") == 0) {
1360                         int i;
1361                         /* clear to get error below if setting is invalid */
1362                         conf->driver = NULL;
1363                         for (i = 0; hostapd_drivers[i]; i++) {
1364                                 if (os_strcmp(pos, hostapd_drivers[i]->name) ==
1365                                     0) {
1366                                         conf->driver = hostapd_drivers[i];
1367                                         break;
1368                                 }
1369                         }
1370                         if (conf->driver == NULL) {
1371                                 printf("Line %d: invalid/unknown driver "
1372                                        "'%s'\n", line, pos);
1373                                 errors++;
1374                         }
1375                 } else if (os_strcmp(buf, "debug") == 0) {
1376                         wpa_printf(MSG_DEBUG, "Line %d: DEPRECATED: 'debug' "
1377                                    "configuration variable is not used "
1378                                    "anymore", line);
1379                 } else if (os_strcmp(buf, "logger_syslog_level") == 0) {
1380                         bss->logger_syslog_level = atoi(pos);
1381                 } else if (os_strcmp(buf, "logger_stdout_level") == 0) {
1382                         bss->logger_stdout_level = atoi(pos);
1383                 } else if (os_strcmp(buf, "logger_syslog") == 0) {
1384                         bss->logger_syslog = atoi(pos);
1385                 } else if (os_strcmp(buf, "logger_stdout") == 0) {
1386                         bss->logger_stdout = atoi(pos);
1387                 } else if (os_strcmp(buf, "dump_file") == 0) {
1388                         bss->dump_log_name = os_strdup(pos);
1389                 } else if (os_strcmp(buf, "ssid") == 0) {
1390                         bss->ssid.ssid_len = os_strlen(pos);
1391                         if (bss->ssid.ssid_len > HOSTAPD_MAX_SSID_LEN ||
1392                             bss->ssid.ssid_len < 1) {
1393                                 printf("Line %d: invalid SSID '%s'\n", line,
1394                                        pos);
1395                                 errors++;
1396                         } else {
1397                                 os_memcpy(bss->ssid.ssid, pos,
1398                                           bss->ssid.ssid_len);
1399                                 bss->ssid.ssid[bss->ssid.ssid_len] = '\0';
1400                                 bss->ssid.ssid_set = 1;
1401                         }
1402                 } else if (os_strcmp(buf, "macaddr_acl") == 0) {
1403                         bss->macaddr_acl = atoi(pos);
1404                         if (bss->macaddr_acl != ACCEPT_UNLESS_DENIED &&
1405                             bss->macaddr_acl != DENY_UNLESS_ACCEPTED &&
1406                             bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
1407                                 printf("Line %d: unknown macaddr_acl %d\n",
1408                                        line, bss->macaddr_acl);
1409                         }
1410                 } else if (os_strcmp(buf, "accept_mac_file") == 0) {
1411                         if (hostapd_config_read_maclist(pos, &bss->accept_mac,
1412                                                         &bss->num_accept_mac))
1413                         {
1414                                 printf("Line %d: Failed to read "
1415                                        "accept_mac_file '%s'\n",
1416                                        line, pos);
1417                                 errors++;
1418                         }
1419                 } else if (os_strcmp(buf, "deny_mac_file") == 0) {
1420                         if (hostapd_config_read_maclist(pos, &bss->deny_mac,
1421                                                         &bss->num_deny_mac))
1422                         {
1423                                 printf("Line %d: Failed to read "
1424                                        "deny_mac_file '%s'\n",
1425                                        line, pos);
1426                                 errors++;
1427                         }
1428                 } else if (os_strcmp(buf, "ap_max_inactivity") == 0) {
1429                         bss->ap_max_inactivity = atoi(pos);
1430                 } else if (os_strcmp(buf, "country_code") == 0) {
1431                         os_memcpy(conf->country, pos, 2);
1432                         /* FIX: make this configurable */
1433                         conf->country[2] = ' ';
1434                 } else if (os_strcmp(buf, "ieee80211d") == 0) {
1435                         conf->ieee80211d = atoi(pos);
1436                 } else if (os_strcmp(buf, "ieee80211h") == 0) {
1437                         conf->ieee80211h = atoi(pos);
1438                 } else if (os_strcmp(buf, "assoc_ap_addr") == 0) {
1439                         if (hwaddr_aton(pos, bss->assoc_ap_addr)) {
1440                                 printf("Line %d: invalid MAC address '%s'\n",
1441                                        line, pos);
1442                                 errors++;
1443                         }
1444                         bss->assoc_ap = 1;
1445                 } else if (os_strcmp(buf, "ieee8021x") == 0) {
1446                         bss->ieee802_1x = atoi(pos);
1447                 } else if (os_strcmp(buf, "eapol_version") == 0) {
1448                         bss->eapol_version = atoi(pos);
1449                         if (bss->eapol_version < 1 ||
1450                             bss->eapol_version > 2) {
1451                                 printf("Line %d: invalid EAPOL "
1452                                        "version (%d): '%s'.\n",
1453                                        line, bss->eapol_version, pos);
1454                                 errors++;
1455                         } else
1456                                 wpa_printf(MSG_DEBUG, "eapol_version=%d",
1457                                            bss->eapol_version);
1458 #ifdef EAP_SERVER
1459                 } else if (os_strcmp(buf, "eap_authenticator") == 0) {
1460                         bss->eap_server = atoi(pos);
1461                         printf("Line %d: obsolete eap_authenticator used; "
1462                                "this has been renamed to eap_server\n", line);
1463                 } else if (os_strcmp(buf, "eap_server") == 0) {
1464                         bss->eap_server = atoi(pos);
1465                 } else if (os_strcmp(buf, "eap_user_file") == 0) {
1466                         if (hostapd_config_read_eap_user(pos, bss))
1467                                 errors++;
1468                 } else if (os_strcmp(buf, "ca_cert") == 0) {
1469                         os_free(bss->ca_cert);
1470                         bss->ca_cert = os_strdup(pos);
1471                 } else if (os_strcmp(buf, "server_cert") == 0) {
1472                         os_free(bss->server_cert);
1473                         bss->server_cert = os_strdup(pos);
1474                 } else if (os_strcmp(buf, "private_key") == 0) {
1475                         os_free(bss->private_key);
1476                         bss->private_key = os_strdup(pos);
1477                 } else if (os_strcmp(buf, "private_key_passwd") == 0) {
1478                         os_free(bss->private_key_passwd);
1479                         bss->private_key_passwd = os_strdup(pos);
1480                 } else if (os_strcmp(buf, "check_crl") == 0) {
1481                         bss->check_crl = atoi(pos);
1482                 } else if (os_strcmp(buf, "dh_file") == 0) {
1483                         os_free(bss->dh_file);
1484                         bss->dh_file = os_strdup(pos);
1485 #ifdef EAP_FAST
1486                 } else if (os_strcmp(buf, "pac_opaque_encr_key") == 0) {
1487                         os_free(bss->pac_opaque_encr_key);
1488                         bss->pac_opaque_encr_key = os_malloc(16);
1489                         if (bss->pac_opaque_encr_key == NULL) {
1490                                 printf("Line %d: No memory for "
1491                                        "pac_opque_encr_key\n", line);
1492                                 errors++;
1493                         } else if (hexstr2bin(pos, bss->pac_opaque_encr_key,
1494                                               16)) {
1495                                 printf("Line %d: Invalid pac_opque_encr_key\n",
1496                                        line);
1497                                 errors++;
1498                         }
1499                 } else if (os_strcmp(buf, "eap_fast_a_id") == 0) {
1500                         os_free(bss->eap_fast_a_id);
1501                         bss->eap_fast_a_id = os_strdup(pos);
1502 #endif /* EAP_FAST */
1503 #ifdef EAP_SIM
1504                 } else if (os_strcmp(buf, "eap_sim_db") == 0) {
1505                         os_free(bss->eap_sim_db);
1506                         bss->eap_sim_db = os_strdup(pos);
1507                 } else if (os_strcmp(buf, "eap_sim_aka_result_ind") == 0) {
1508                         bss->eap_sim_aka_result_ind = atoi(pos);
1509 #endif /* EAP_SIM */
1510 #ifdef EAP_TNC
1511                 } else if (os_strcmp(buf, "tnc") == 0) {
1512                         bss->tnc = atoi(pos);
1513 #endif /* EAP_TNC */
1514 #endif /* EAP_SERVER */
1515                 } else if (os_strcmp(buf, "eap_message") == 0) {
1516                         char *term;
1517                         bss->eap_req_id_text = os_strdup(pos);
1518                         if (bss->eap_req_id_text == NULL) {
1519                                 printf("Line %d: Failed to allocate memory "
1520                                        "for eap_req_id_text\n", line);
1521                                 errors++;
1522                                 continue;
1523                         }
1524                         bss->eap_req_id_text_len =
1525                                 os_strlen(bss->eap_req_id_text);
1526                         term = os_strstr(bss->eap_req_id_text, "\\0");
1527                         if (term) {
1528                                 *term++ = '\0';
1529                                 os_memmove(term, term + 1,
1530                                            bss->eap_req_id_text_len -
1531                                            (term - bss->eap_req_id_text) - 1);
1532                                 bss->eap_req_id_text_len--;
1533                         }
1534                 } else if (os_strcmp(buf, "wep_key_len_broadcast") == 0) {
1535                         bss->default_wep_key_len = atoi(pos);
1536                         if (bss->default_wep_key_len > 13) {
1537                                 printf("Line %d: invalid WEP key len %lu "
1538                                        "(= %lu bits)\n", line,
1539                                        (unsigned long)
1540                                        bss->default_wep_key_len,
1541                                        (unsigned long)
1542                                        bss->default_wep_key_len * 8);
1543                                 errors++;
1544                         }
1545                 } else if (os_strcmp(buf, "wep_key_len_unicast") == 0) {
1546                         bss->individual_wep_key_len = atoi(pos);
1547                         if (bss->individual_wep_key_len < 0 ||
1548                             bss->individual_wep_key_len > 13) {
1549                                 printf("Line %d: invalid WEP key len %d "
1550                                        "(= %d bits)\n", line,
1551                                        bss->individual_wep_key_len,
1552                                        bss->individual_wep_key_len * 8);
1553                                 errors++;
1554                         }
1555                 } else if (os_strcmp(buf, "wep_rekey_period") == 0) {
1556                         bss->wep_rekeying_period = atoi(pos);
1557                         if (bss->wep_rekeying_period < 0) {
1558                                 printf("Line %d: invalid period %d\n",
1559                                        line, bss->wep_rekeying_period);
1560                                 errors++;
1561                         }
1562                 } else if (os_strcmp(buf, "eap_reauth_period") == 0) {
1563                         bss->eap_reauth_period = atoi(pos);
1564                         if (bss->eap_reauth_period < 0) {
1565                                 printf("Line %d: invalid period %d\n",
1566                                        line, bss->eap_reauth_period);
1567                                 errors++;
1568                         }
1569                 } else if (os_strcmp(buf, "eapol_key_index_workaround") == 0) {
1570                         bss->eapol_key_index_workaround = atoi(pos);
1571 #ifdef CONFIG_IAPP
1572                 } else if (os_strcmp(buf, "iapp_interface") == 0) {
1573                         bss->ieee802_11f = 1;
1574                         os_strlcpy(bss->iapp_iface, pos,
1575                                    sizeof(bss->iapp_iface));
1576 #endif /* CONFIG_IAPP */
1577                 } else if (os_strcmp(buf, "own_ip_addr") == 0) {
1578                         if (hostapd_parse_ip_addr(pos, &bss->own_ip_addr)) {
1579                                 printf("Line %d: invalid IP address '%s'\n",
1580                                        line, pos);
1581                                 errors++;
1582                         }
1583                 } else if (os_strcmp(buf, "nas_identifier") == 0) {
1584                         bss->nas_identifier = os_strdup(pos);
1585                 } else if (os_strcmp(buf, "auth_server_addr") == 0) {
1586                         if (hostapd_config_read_radius_addr(
1587                                     &bss->radius->auth_servers,
1588                                     &bss->radius->num_auth_servers, pos, 1812,
1589                                     &bss->radius->auth_server)) {
1590                                 printf("Line %d: invalid IP address '%s'\n",
1591                                        line, pos);
1592                                 errors++;
1593                         }
1594                 } else if (bss->radius->auth_server &&
1595                            os_strcmp(buf, "auth_server_port") == 0) {
1596                         bss->radius->auth_server->port = atoi(pos);
1597                 } else if (bss->radius->auth_server &&
1598                            os_strcmp(buf, "auth_server_shared_secret") == 0) {
1599                         int len = os_strlen(pos);
1600                         if (len == 0) {
1601                                 /* RFC 2865, Ch. 3 */
1602                                 printf("Line %d: empty shared secret is not "
1603                                        "allowed.\n", line);
1604                                 errors++;
1605                         }
1606                         bss->radius->auth_server->shared_secret =
1607                                 (u8 *) os_strdup(pos);
1608                         bss->radius->auth_server->shared_secret_len = len;
1609                 } else if (os_strcmp(buf, "acct_server_addr") == 0) {
1610                         if (hostapd_config_read_radius_addr(
1611                                     &bss->radius->acct_servers,
1612                                     &bss->radius->num_acct_servers, pos, 1813,
1613                                     &bss->radius->acct_server)) {
1614                                 printf("Line %d: invalid IP address '%s'\n",
1615                                        line, pos);
1616                                 errors++;
1617                         }
1618                 } else if (bss->radius->acct_server &&
1619                            os_strcmp(buf, "acct_server_port") == 0) {
1620                         bss->radius->acct_server->port = atoi(pos);
1621                 } else if (bss->radius->acct_server &&
1622                            os_strcmp(buf, "acct_server_shared_secret") == 0) {
1623                         int len = os_strlen(pos);
1624                         if (len == 0) {
1625                                 /* RFC 2865, Ch. 3 */
1626                                 printf("Line %d: empty shared secret is not "
1627                                        "allowed.\n", line);
1628                                 errors++;
1629                         }
1630                         bss->radius->acct_server->shared_secret =
1631                                 (u8 *) os_strdup(pos);
1632                         bss->radius->acct_server->shared_secret_len = len;
1633                 } else if (os_strcmp(buf, "radius_retry_primary_interval") ==
1634                            0) {
1635                         bss->radius->retry_primary_interval = atoi(pos);
1636                 } else if (os_strcmp(buf, "radius_acct_interim_interval") == 0)
1637                 {
1638                         bss->radius->acct_interim_interval = atoi(pos);
1639                 } else if (os_strcmp(buf, "auth_algs") == 0) {
1640                         bss->auth_algs = atoi(pos);
1641                         if (bss->auth_algs == 0) {
1642                                 printf("Line %d: no authentication algorithms "
1643                                        "allowed\n",
1644                                        line);
1645                                 errors++;
1646                         }
1647                 } else if (os_strcmp(buf, "max_num_sta") == 0) {
1648                         bss->max_num_sta = atoi(pos);
1649                         if (bss->max_num_sta < 0 ||
1650                             bss->max_num_sta > MAX_STA_COUNT) {
1651                                 printf("Line %d: Invalid max_num_sta=%d; "
1652                                        "allowed range 0..%d\n", line,
1653                                        bss->max_num_sta, MAX_STA_COUNT);
1654                                 errors++;
1655                         }
1656                 } else if (os_strcmp(buf, "wpa") == 0) {
1657                         bss->wpa = atoi(pos);
1658                 } else if (os_strcmp(buf, "wpa_group_rekey") == 0) {
1659                         bss->wpa_group_rekey = atoi(pos);
1660                 } else if (os_strcmp(buf, "wpa_strict_rekey") == 0) {
1661                         bss->wpa_strict_rekey = atoi(pos);
1662                 } else if (os_strcmp(buf, "wpa_gmk_rekey") == 0) {
1663                         bss->wpa_gmk_rekey = atoi(pos);
1664                 } else if (os_strcmp(buf, "wpa_passphrase") == 0) {
1665                         int len = os_strlen(pos);
1666                         if (len < 8 || len > 63) {
1667                                 printf("Line %d: invalid WPA passphrase length"
1668                                        " %d (expected 8..63)\n", line, len);
1669                                 errors++;
1670                         } else {
1671                                 os_free(bss->ssid.wpa_passphrase);
1672                                 bss->ssid.wpa_passphrase = os_strdup(pos);
1673                         }
1674                 } else if (os_strcmp(buf, "wpa_psk") == 0) {
1675                         os_free(bss->ssid.wpa_psk);
1676                         bss->ssid.wpa_psk =
1677                                 os_zalloc(sizeof(struct hostapd_wpa_psk));
1678                         if (bss->ssid.wpa_psk == NULL)
1679                                 errors++;
1680                         else if (hexstr2bin(pos, bss->ssid.wpa_psk->psk,
1681                                             PMK_LEN) ||
1682                                  pos[PMK_LEN * 2] != '\0') {
1683                                 printf("Line %d: Invalid PSK '%s'.\n", line,
1684                                        pos);
1685                                 errors++;
1686                         } else {
1687                                 bss->ssid.wpa_psk->group = 1;
1688                         }
1689                 } else if (os_strcmp(buf, "wpa_psk_file") == 0) {
1690                         os_free(bss->ssid.wpa_psk_file);
1691                         bss->ssid.wpa_psk_file = os_strdup(pos);
1692                         if (!bss->ssid.wpa_psk_file) {
1693                                 printf("Line %d: allocation failed\n", line);
1694                                 errors++;
1695                         }
1696                 } else if (os_strcmp(buf, "wpa_key_mgmt") == 0) {
1697                         bss->wpa_key_mgmt =
1698                                 hostapd_config_parse_key_mgmt(line, pos);
1699                         if (bss->wpa_key_mgmt == -1)
1700                                 errors++;
1701                 } else if (os_strcmp(buf, "wpa_pairwise") == 0) {
1702                         bss->wpa_pairwise =
1703                                 hostapd_config_parse_cipher(line, pos);
1704                         if (bss->wpa_pairwise == -1 ||
1705                             bss->wpa_pairwise == 0)
1706                                 errors++;
1707                         else if (bss->wpa_pairwise &
1708                                  (WPA_CIPHER_NONE | WPA_CIPHER_WEP40 |
1709                                   WPA_CIPHER_WEP104)) {
1710                                 printf("Line %d: unsupported pairwise "
1711                                        "cipher suite '%s'\n",
1712                                        bss->wpa_pairwise, pos);
1713                                 errors++;
1714                         }
1715                 } else if (os_strcmp(buf, "rsn_pairwise") == 0) {
1716                         bss->rsn_pairwise =
1717                                 hostapd_config_parse_cipher(line, pos);
1718                         if (bss->rsn_pairwise == -1 ||
1719                             bss->rsn_pairwise == 0)
1720                                 errors++;
1721                         else if (bss->rsn_pairwise &
1722                                  (WPA_CIPHER_NONE | WPA_CIPHER_WEP40 |
1723                                   WPA_CIPHER_WEP104)) {
1724                                 printf("Line %d: unsupported pairwise "
1725                                        "cipher suite '%s'\n",
1726                                        bss->rsn_pairwise, pos);
1727                                 errors++;
1728                         }
1729 #ifdef CONFIG_RSN_PREAUTH
1730                 } else if (os_strcmp(buf, "rsn_preauth") == 0) {
1731                         bss->rsn_preauth = atoi(pos);
1732                 } else if (os_strcmp(buf, "rsn_preauth_interfaces") == 0) {
1733                         bss->rsn_preauth_interfaces = os_strdup(pos);
1734 #endif /* CONFIG_RSN_PREAUTH */
1735 #ifdef CONFIG_PEERKEY
1736                 } else if (os_strcmp(buf, "peerkey") == 0) {
1737                         bss->peerkey = atoi(pos);
1738 #endif /* CONFIG_PEERKEY */
1739 #ifdef CONFIG_IEEE80211R
1740                 } else if (os_strcmp(buf, "mobility_domain") == 0) {
1741                         if (os_strlen(pos) != 2 * MOBILITY_DOMAIN_ID_LEN ||
1742                             hexstr2bin(pos, bss->mobility_domain,
1743                                        MOBILITY_DOMAIN_ID_LEN) != 0) {
1744                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1745                                            "mobility_domain '%s'", line, pos);
1746                                 errors++;
1747                                 continue;
1748                         }
1749                 } else if (os_strcmp(buf, "r1_key_holder") == 0) {
1750                         if (os_strlen(pos) != 2 * FT_R1KH_ID_LEN ||
1751                             hexstr2bin(pos, bss->r1_key_holder,
1752                                        FT_R1KH_ID_LEN) != 0) {
1753                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1754                                            "r1_key_holder '%s'", line, pos);
1755                                 errors++;
1756                                 continue;
1757                         }
1758                 } else if (os_strcmp(buf, "r0_key_lifetime") == 0) {
1759                         bss->r0_key_lifetime = atoi(pos);
1760                 } else if (os_strcmp(buf, "reassociation_deadline") == 0) {
1761                         bss->reassociation_deadline = atoi(pos);
1762                 } else if (os_strcmp(buf, "r0kh") == 0) {
1763                         if (add_r0kh(bss, pos) < 0) {
1764                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1765                                            "r0kh '%s'", line, pos);
1766                                 errors++;
1767                                 continue;
1768                         }
1769                 } else if (os_strcmp(buf, "r1kh") == 0) {
1770                         if (add_r1kh(bss, pos) < 0) {
1771                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid "
1772                                            "r1kh '%s'", line, pos);
1773                                 errors++;
1774                                 continue;
1775                         }
1776                 } else if (os_strcmp(buf, "pmk_r1_push") == 0) {
1777                         bss->pmk_r1_push = atoi(pos);
1778 #endif /* CONFIG_IEEE80211R */
1779                 } else if (os_strcmp(buf, "ctrl_interface") == 0) {
1780                         os_free(bss->ctrl_interface);
1781                         bss->ctrl_interface = os_strdup(pos);
1782                 } else if (os_strcmp(buf, "ctrl_interface_group") == 0) {
1783 #ifndef CONFIG_NATIVE_WINDOWS
1784                         struct group *grp;
1785                         char *endp;
1786                         const char *group = pos;
1787
1788                         grp = getgrnam(group);
1789                         if (grp) {
1790                                 bss->ctrl_interface_gid = grp->gr_gid;
1791                                 bss->ctrl_interface_gid_set = 1;
1792                                 wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d"
1793                                            " (from group name '%s')",
1794                                            bss->ctrl_interface_gid, group);
1795                                 continue;
1796                         }
1797
1798                         /* Group name not found - try to parse this as gid */
1799                         bss->ctrl_interface_gid = strtol(group, &endp, 10);
1800                         if (*group == '\0' || *endp != '\0') {
1801                                 wpa_printf(MSG_DEBUG, "Line %d: Invalid group "
1802                                            "'%s'", line, group);
1803                                 errors++;
1804                                 continue;
1805                         }
1806                         bss->ctrl_interface_gid_set = 1;
1807                         wpa_printf(MSG_DEBUG, "ctrl_interface_group=%d",
1808                                    bss->ctrl_interface_gid);
1809 #endif /* CONFIG_NATIVE_WINDOWS */
1810 #ifdef RADIUS_SERVER
1811                 } else if (os_strcmp(buf, "radius_server_clients") == 0) {
1812                         os_free(bss->radius_server_clients);
1813                         bss->radius_server_clients = os_strdup(pos);
1814                 } else if (os_strcmp(buf, "radius_server_auth_port") == 0) {
1815                         bss->radius_server_auth_port = atoi(pos);
1816                 } else if (os_strcmp(buf, "radius_server_ipv6") == 0) {
1817                         bss->radius_server_ipv6 = atoi(pos);
1818 #endif /* RADIUS_SERVER */
1819                 } else if (os_strcmp(buf, "test_socket") == 0) {
1820                         os_free(bss->test_socket);
1821                         bss->test_socket = os_strdup(pos);
1822                 } else if (os_strcmp(buf, "use_pae_group_addr") == 0) {
1823                         bss->use_pae_group_addr = atoi(pos);
1824                 } else if (os_strcmp(buf, "hw_mode") == 0) {
1825                         if (os_strcmp(pos, "a") == 0)
1826                                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
1827                         else if (os_strcmp(pos, "b") == 0)
1828                                 conf->hw_mode = HOSTAPD_MODE_IEEE80211B;
1829                         else if (os_strcmp(pos, "g") == 0)
1830                                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
1831                         else {
1832                                 printf("Line %d: unknown hw_mode '%s'\n",
1833                                        line, pos);
1834                                 errors++;
1835                         }
1836                 } else if (os_strcmp(buf, "channel") == 0) {
1837                         conf->channel = atoi(pos);
1838                 } else if (os_strcmp(buf, "beacon_int") == 0) {
1839                         int val = atoi(pos);
1840                         /* MIB defines range as 1..65535, but very small values
1841                          * cause problems with the current implementation.
1842                          * Since it is unlikely that this small numbers are
1843                          * useful in real life scenarios, do not allow beacon
1844                          * period to be set below 15 TU. */
1845                         if (val < 15 || val > 65535) {
1846                                 printf("Line %d: invalid beacon_int %d "
1847                                        "(expected 15..65535)\n",
1848                                        line, val);
1849                                 errors++;
1850                         } else
1851                                 conf->beacon_int = val;
1852                 } else if (os_strcmp(buf, "dtim_period") == 0) {
1853                         bss->dtim_period = atoi(pos);
1854                         if (bss->dtim_period < 1 || bss->dtim_period > 255) {
1855                                 printf("Line %d: invalid dtim_period %d\n",
1856                                        line, bss->dtim_period);
1857                                 errors++;
1858                         }
1859                 } else if (os_strcmp(buf, "rts_threshold") == 0) {
1860                         conf->rts_threshold = atoi(pos);
1861                         if (conf->rts_threshold < 0 ||
1862                             conf->rts_threshold > 2347) {
1863                                 printf("Line %d: invalid rts_threshold %d\n",
1864                                        line, conf->rts_threshold);
1865                                 errors++;
1866                         }
1867                 } else if (os_strcmp(buf, "fragm_threshold") == 0) {
1868                         conf->fragm_threshold = atoi(pos);
1869                         if (conf->fragm_threshold < 256 ||
1870                             conf->fragm_threshold > 2346) {
1871                                 printf("Line %d: invalid fragm_threshold %d\n",
1872                                        line, conf->fragm_threshold);
1873                                 errors++;
1874                         }
1875                 } else if (os_strcmp(buf, "send_probe_response") == 0) {
1876                         int val = atoi(pos);
1877                         if (val != 0 && val != 1) {
1878                                 printf("Line %d: invalid send_probe_response "
1879                                        "%d (expected 0 or 1)\n", line, val);
1880                         } else
1881                                 conf->send_probe_response = val;
1882                 } else if (os_strcmp(buf, "supported_rates") == 0) {
1883                         if (hostapd_parse_rates(&conf->supported_rates, pos)) {
1884                                 printf("Line %d: invalid rate list\n", line);
1885                                 errors++;
1886                         }
1887                 } else if (os_strcmp(buf, "basic_rates") == 0) {
1888                         if (hostapd_parse_rates(&conf->basic_rates, pos)) {
1889                                 printf("Line %d: invalid rate list\n", line);
1890                                 errors++;
1891                         }
1892                 } else if (os_strcmp(buf, "preamble") == 0) {
1893                         if (atoi(pos))
1894                                 conf->preamble = SHORT_PREAMBLE;
1895                         else
1896                                 conf->preamble = LONG_PREAMBLE;
1897                 } else if (os_strcmp(buf, "ignore_broadcast_ssid") == 0) {
1898                         bss->ignore_broadcast_ssid = atoi(pos);
1899                 } else if (os_strcmp(buf, "bridge_packets") == 0) {
1900                         conf->bridge_packets = atoi(pos);
1901                 } else if (os_strcmp(buf, "wep_default_key") == 0) {
1902                         bss->ssid.wep.idx = atoi(pos);
1903                         if (bss->ssid.wep.idx > 3) {
1904                                 printf("Invalid wep_default_key index %d\n",
1905                                        bss->ssid.wep.idx);
1906                                 errors++;
1907                         }
1908                 } else if (os_strcmp(buf, "wep_key0") == 0 ||
1909                            os_strcmp(buf, "wep_key1") == 0 ||
1910                            os_strcmp(buf, "wep_key2") == 0 ||
1911                            os_strcmp(buf, "wep_key3") == 0) {
1912                         if (hostapd_config_read_wep(&bss->ssid.wep,
1913                                                     buf[7] - '0', pos)) {
1914                                 printf("Line %d: invalid WEP key '%s'\n",
1915                                        line, buf);
1916                                 errors++;
1917                         }
1918                 } else if (os_strcmp(buf, "dynamic_vlan") == 0) {
1919                         bss->ssid.dynamic_vlan = atoi(pos);
1920                 } else if (os_strcmp(buf, "vlan_file") == 0) {
1921                         if (hostapd_config_read_vlan_file(bss, pos)) {
1922                                 printf("Line %d: failed to read VLAN file "
1923                                        "'%s'\n", line, pos);
1924                                 errors++;
1925                         }
1926 #ifdef CONFIG_FULL_DYNAMIC_VLAN
1927                 } else if (os_strcmp(buf, "vlan_tagged_interface") == 0) {
1928                         bss->ssid.vlan_tagged_interface = os_strdup(pos);
1929 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
1930                 } else if (os_strcmp(buf, "passive_scan_interval") == 0) {
1931                         conf->passive_scan_interval = atoi(pos);
1932                 } else if (os_strcmp(buf, "passive_scan_listen") == 0) {
1933                         conf->passive_scan_listen = atoi(pos);
1934                 } else if (os_strcmp(buf, "passive_scan_mode") == 0) {
1935                         conf->passive_scan_mode = atoi(pos);
1936                 } else if (os_strcmp(buf, "ap_table_max_size") == 0) {
1937                         conf->ap_table_max_size = atoi(pos);
1938                 } else if (os_strcmp(buf, "ap_table_expiration_time") == 0) {
1939                         conf->ap_table_expiration_time = atoi(pos);
1940                 } else if (os_strncmp(buf, "tx_queue_", 9) == 0) {
1941                         if (hostapd_config_tx_queue(conf, buf, pos)) {
1942                                 printf("Line %d: invalid TX queue item\n",
1943                                        line);
1944                                 errors++;
1945                         }
1946                 } else if (os_strcmp(buf, "wme_enabled") == 0) {
1947                         bss->wme_enabled = atoi(pos);
1948                 } else if (os_strncmp(buf, "wme_ac_", 7) == 0) {
1949                         if (hostapd_config_wme_ac(conf, buf, pos)) {
1950                                 printf("Line %d: invalid wme ac item\n",
1951                                        line);
1952                                 errors++;
1953                         }
1954                 } else if (os_strcmp(buf, "bss") == 0) {
1955                         if (hostapd_config_bss(conf, pos)) {
1956                                 printf("Line %d: invalid bss item\n", line);
1957                                 errors++;
1958                         }
1959                 } else if (os_strcmp(buf, "bssid") == 0) {
1960                         if (bss == conf->bss &&
1961                             (!conf->driver || !conf->driver->init_bssid)) {
1962                                 printf("Line %d: bssid item not allowed "
1963                                        "for the default interface and this "
1964                                        "driver\n", line);
1965                                 errors++;
1966                         } else if (hwaddr_aton(pos, bss->bssid)) {
1967                                 printf("Line %d: invalid bssid item\n", line);
1968                                 errors++;
1969                         }
1970 #ifdef CONFIG_IEEE80211W
1971                 } else if (os_strcmp(buf, "ieee80211w") == 0) {
1972                         bss->ieee80211w = atoi(pos);
1973                 } else if (os_strcmp(buf, "assoc_ping_timeout") == 0) {
1974                         bss->assoc_ping_timeout = atoi(pos);
1975                         if (bss->assoc_ping_timeout == 0) {
1976                                 printf("Line %d: invalid assoc_ping_timeout\n",
1977                                         line);
1978                                 errors++;
1979                         }
1980                 } else if (os_strcmp(buf, "assoc_ping_attempts") == 0) {
1981                         bss->assoc_ping_timeout = atoi(pos);
1982                         if (bss->assoc_ping_timeout == 0) {
1983                                 printf("Line %d: invalid assoc_ping_attempts "
1984                                        "(valid range: 1..255)\n",
1985                                        line);
1986                                 errors++;
1987                         }
1988 #endif /* CONFIG_IEEE80211W */
1989 #ifdef CONFIG_IEEE80211N
1990                 } else if (os_strcmp(buf, "ieee80211n") == 0) {
1991                         conf->ieee80211n = atoi(pos);
1992 #endif /* CONFIG_IEEE80211N */
1993                 } else if (os_strcmp(buf, "max_listen_interval") == 0) {
1994                         bss->max_listen_interval = atoi(pos);
1995                 } else if (os_strcmp(buf, "okc") == 0) {
1996                         bss->okc = atoi(pos);
1997                 } else {
1998                         printf("Line %d: unknown configuration item '%s'\n",
1999                                line, buf);
2000                         errors++;
2001                 }
2002         }
2003
2004         fclose(f);
2005
2006         if (bss->individual_wep_key_len == 0) {
2007                 /* individual keys are not use; can use key idx0 for broadcast
2008                  * keys */
2009                 bss->broadcast_key_idx_min = 0;
2010         }
2011
2012         /* Select group cipher based on the enabled pairwise cipher suites */
2013         pairwise = 0;
2014         if (bss->wpa & 1)
2015                 pairwise |= bss->wpa_pairwise;
2016         if (bss->wpa & 2) {
2017                 if (bss->rsn_pairwise == 0)
2018                         bss->rsn_pairwise = bss->wpa_pairwise;
2019                 pairwise |= bss->rsn_pairwise;
2020         }
2021         if (pairwise & WPA_CIPHER_TKIP)
2022                 bss->wpa_group = WPA_CIPHER_TKIP;
2023         else
2024                 bss->wpa_group = WPA_CIPHER_CCMP;
2025
2026         for (i = 0; i < conf->num_bss; i++) {
2027                 bss = &conf->bss[i];
2028
2029                 bss->radius->auth_server = bss->radius->auth_servers;
2030                 bss->radius->acct_server = bss->radius->acct_servers;
2031
2032                 if (bss->wpa && bss->ieee802_1x) {
2033                         bss->ssid.security_policy = SECURITY_WPA;
2034                 } else if (bss->wpa) {
2035                         bss->ssid.security_policy = SECURITY_WPA_PSK;
2036                 } else if (bss->ieee802_1x) {
2037                         bss->ssid.security_policy = SECURITY_IEEE_802_1X;
2038                         bss->ssid.wep.default_len = bss->default_wep_key_len;
2039                 } else if (bss->ssid.wep.keys_set)
2040                         bss->ssid.security_policy = SECURITY_STATIC_WEP;
2041                 else
2042                         bss->ssid.security_policy = SECURITY_PLAINTEXT;
2043         }
2044
2045         if (hostapd_config_check(conf))
2046                 errors++;
2047
2048         if (errors) {
2049                 printf("%d errors found in configuration file '%s'\n",
2050                        errors, fname);
2051                 hostapd_config_free(conf);
2052                 conf = NULL;
2053         }
2054
2055         return conf;
2056 }
2057
2058
2059 int hostapd_wep_key_cmp(struct hostapd_wep_keys *a, struct hostapd_wep_keys *b)
2060 {
2061         int i;
2062
2063         if (a->idx != b->idx || a->default_len != b->default_len)
2064                 return 1;
2065         for (i = 0; i < NUM_WEP_KEYS; i++)
2066                 if (a->len[i] != b->len[i] ||
2067                     os_memcmp(a->key[i], b->key[i], a->len[i]) != 0)
2068                         return 1;
2069         return 0;
2070 }
2071
2072
2073 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
2074                                        int num_servers)
2075 {
2076         int i;
2077
2078         for (i = 0; i < num_servers; i++) {
2079                 os_free(servers[i].shared_secret);
2080         }
2081         os_free(servers);
2082 }
2083
2084
2085 static void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
2086 {
2087         os_free(user->identity);
2088         os_free(user->password);
2089         os_free(user);
2090 }
2091
2092
2093 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
2094 {
2095         int i;
2096         for (i = 0; i < NUM_WEP_KEYS; i++) {
2097                 os_free(keys->key[i]);
2098                 keys->key[i] = NULL;
2099         }
2100 }
2101
2102
2103 static void hostapd_config_free_bss(struct hostapd_bss_config *conf)
2104 {
2105         struct hostapd_wpa_psk *psk, *prev;
2106         struct hostapd_eap_user *user, *prev_user;
2107
2108         if (conf == NULL)
2109                 return;
2110
2111         psk = conf->ssid.wpa_psk;
2112         while (psk) {
2113                 prev = psk;
2114                 psk = psk->next;
2115                 os_free(prev);
2116         }
2117
2118         os_free(conf->ssid.wpa_passphrase);
2119         os_free(conf->ssid.wpa_psk_file);
2120 #ifdef CONFIG_FULL_DYNAMIC_VLAN
2121         os_free(conf->ssid.vlan_tagged_interface);
2122 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
2123
2124         user = conf->eap_user;
2125         while (user) {
2126                 prev_user = user;
2127                 user = user->next;
2128                 hostapd_config_free_eap_user(prev_user);
2129         }
2130
2131         os_free(conf->dump_log_name);
2132         os_free(conf->eap_req_id_text);
2133         os_free(conf->accept_mac);
2134         os_free(conf->deny_mac);
2135         os_free(conf->nas_identifier);
2136         hostapd_config_free_radius(conf->radius->auth_servers,
2137                                    conf->radius->num_auth_servers);
2138         hostapd_config_free_radius(conf->radius->acct_servers,
2139                                    conf->radius->num_acct_servers);
2140         os_free(conf->rsn_preauth_interfaces);
2141         os_free(conf->ctrl_interface);
2142         os_free(conf->ca_cert);
2143         os_free(conf->server_cert);
2144         os_free(conf->private_key);
2145         os_free(conf->private_key_passwd);
2146         os_free(conf->dh_file);
2147         os_free(conf->pac_opaque_encr_key);
2148         os_free(conf->eap_fast_a_id);
2149         os_free(conf->eap_sim_db);
2150         os_free(conf->radius_server_clients);
2151         os_free(conf->test_socket);
2152         os_free(conf->radius);
2153         hostapd_config_free_vlan(conf);
2154         if (conf->ssid.dyn_vlan_keys) {
2155                 struct hostapd_ssid *ssid = &conf->ssid;
2156                 size_t i;
2157                 for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
2158                         if (ssid->dyn_vlan_keys[i] == NULL)
2159                                 continue;
2160                         hostapd_config_free_wep(ssid->dyn_vlan_keys[i]);
2161                         os_free(ssid->dyn_vlan_keys[i]);
2162                 }
2163                 os_free(ssid->dyn_vlan_keys);
2164                 ssid->dyn_vlan_keys = NULL;
2165         }
2166
2167 #ifdef CONFIG_IEEE80211R
2168         {
2169                 struct ft_remote_r0kh *r0kh, *r0kh_prev;
2170                 struct ft_remote_r1kh *r1kh, *r1kh_prev;
2171
2172                 r0kh = conf->r0kh_list;
2173                 conf->r0kh_list = NULL;
2174                 while (r0kh) {
2175                         r0kh_prev = r0kh;
2176                         r0kh = r0kh->next;
2177                         os_free(r0kh_prev);
2178                 }
2179
2180                 r1kh = conf->r1kh_list;
2181                 conf->r1kh_list = NULL;
2182                 while (r1kh) {
2183                         r1kh_prev = r1kh;
2184                         r1kh = r1kh->next;
2185                         os_free(r1kh_prev);
2186                 }
2187         }
2188 #endif /* CONFIG_IEEE80211R */
2189 }
2190
2191
2192 void hostapd_config_free(struct hostapd_config *conf)
2193 {
2194         size_t i;
2195
2196         if (conf == NULL)
2197                 return;
2198
2199         for (i = 0; i < conf->num_bss; i++)
2200                 hostapd_config_free_bss(&conf->bss[i]);
2201         os_free(conf->bss);
2202
2203         os_free(conf);
2204 }
2205
2206
2207 /* Perform a binary search for given MAC address from a pre-sorted list.
2208  * Returns 1 if address is in the list or 0 if not. */
2209 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
2210                           const u8 *addr, int *vlan_id)
2211 {
2212         int start, end, middle, res;
2213
2214         start = 0;
2215         end = num_entries - 1;
2216
2217         while (start <= end) {
2218                 middle = (start + end) / 2;
2219                 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
2220                 if (res == 0) {
2221                         if (vlan_id)
2222                                 *vlan_id = list[middle].vlan_id;
2223                         return 1;
2224                 }
2225                 if (res < 0)
2226                         start = middle + 1;
2227                 else
2228                         end = middle - 1;
2229         }
2230
2231         return 0;
2232 }
2233
2234
2235 int hostapd_rate_found(int *list, int rate)
2236 {
2237         int i;
2238
2239         if (list == NULL)
2240                 return 0;
2241
2242         for (i = 0; list[i] >= 0; i++)
2243                 if (list[i] == rate)
2244                         return 1;
2245
2246         return 0;
2247 }
2248
2249
2250 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
2251 {
2252         struct hostapd_vlan *v = vlan;
2253         while (v) {
2254                 if (v->vlan_id == vlan_id || v->vlan_id == VLAN_ID_WILDCARD)
2255                         return v->ifname;
2256                 v = v->next;
2257         }
2258         return NULL;
2259 }
2260
2261
2262 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
2263                            const u8 *addr, const u8 *prev_psk)
2264 {
2265         struct hostapd_wpa_psk *psk;
2266         int next_ok = prev_psk == NULL;
2267
2268         for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
2269                 if (next_ok &&
2270                     (psk->group || os_memcmp(psk->addr, addr, ETH_ALEN) == 0))
2271                         return psk->psk;
2272
2273                 if (psk->psk == prev_psk)
2274                         next_ok = 1;
2275         }
2276
2277         return NULL;
2278 }
2279
2280
2281 const struct hostapd_eap_user *
2282 hostapd_get_eap_user(const struct hostapd_bss_config *conf, const u8 *identity,
2283                      size_t identity_len, int phase2)
2284 {
2285         struct hostapd_eap_user *user = conf->eap_user;
2286
2287         while (user) {
2288                 if (!phase2 && user->identity == NULL) {
2289                         /* Wildcard match */
2290                         break;
2291                 }
2292
2293                 if (user->phase2 == !!phase2 && user->wildcard_prefix &&
2294                     identity_len >= user->identity_len &&
2295                     os_memcmp(user->identity, identity, user->identity_len) ==
2296                     0) {
2297                         /* Wildcard prefix match */
2298                         break;
2299                 }
2300
2301                 if (user->phase2 == !!phase2 &&
2302                     user->identity_len == identity_len &&
2303                     os_memcmp(user->identity, identity, identity_len) == 0)
2304                         break;
2305                 user = user->next;
2306         }
2307
2308         return user;
2309 }