contrib/wpa/src/ap/ap_config.c

   1 /*
   2  * hostapd / Configuration helper functions
   3  * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "crypto/sha1.h"
  13 #include "crypto/tls.h"
  14 #include "radius/radius_client.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/ieee802_1x_defs.h"
  17 #include "common/eapol_common.h"
  18 #include "common/dhcp.h"
  19 #include "eap_common/eap_wsc_common.h"
  20 #include "eap_server/eap.h"
  21 #include "wpa_auth.h"
  22 #include "sta_info.h"
  23 #include "airtime_policy.h"
  24 #include "ap_config.h"
  25
  26
  27 static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
  28 {
  29         struct hostapd_vlan *vlan, *prev;
  30
  31         vlan = bss->vlan;
  32         prev = NULL;
  33         while (vlan) {
  34                 prev = vlan;
  35                 vlan = vlan->next;
  36                 os_free(prev);
  37         }
  38
  39         bss->vlan = NULL;
  40 }
  41
  42
  43 #ifndef DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES
  44 #define DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES 0
  45 #endif /* DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES */
  46
  47 void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
  48 {
  49         dl_list_init(&bss->anqp_elem);
  50
  51         bss->logger_syslog_level = HOSTAPD_LEVEL_INFO;
  52         bss->logger_stdout_level = HOSTAPD_LEVEL_INFO;
  53         bss->logger_syslog = (unsigned int) -1;
  54         bss->logger_stdout = (unsigned int) -1;
  55
  56         bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
  57
  58         bss->wep_rekeying_period = 300;
  59         /* use key0 in individual key and key1 in broadcast key */
  60         bss->broadcast_key_idx_min = 1;
  61         bss->broadcast_key_idx_max = 2;
  62         bss->eap_reauth_period = 3600;
  63
  64         bss->wpa_group_rekey = 600;
  65         bss->wpa_gmk_rekey = 86400;
  66         bss->wpa_group_update_count = 4;
  67         bss->wpa_pairwise_update_count = 4;
  68         bss->wpa_disable_eapol_key_retries =
  69                 DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES;
  70         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
  71         bss->wpa_pairwise = WPA_CIPHER_TKIP;
  72         bss->wpa_group = WPA_CIPHER_TKIP;
  73         bss->rsn_pairwise = 0;
  74
  75         bss->max_num_sta = MAX_STA_COUNT;
  76
  77         bss->dtim_period = 2;
  78
  79         bss->radius_server_auth_port = 1812;
  80         bss->eap_sim_db_timeout = 1;
  81         bss->eap_sim_id = 3;
  82         bss->ap_max_inactivity = AP_MAX_INACTIVITY;
  83         bss->eapol_version = EAPOL_VERSION;
  84
  85         bss->max_listen_interval = 65535;
  86
  87         bss->pwd_group = 19; /* ECC: GF(p=256) */
  88
  89 #ifdef CONFIG_IEEE80211W
  90         bss->assoc_sa_query_max_timeout = 1000;
  91         bss->assoc_sa_query_retry_timeout = 201;
  92         bss->group_mgmt_cipher = WPA_CIPHER_AES_128_CMAC;
  93 #endif /* CONFIG_IEEE80211W */
  94 #ifdef EAP_SERVER_FAST
  95          /* both anonymous and authenticated provisioning */
  96         bss->eap_fast_prov = 3;
  97         bss->pac_key_lifetime = 7 * 24 * 60 * 60;
  98         bss->pac_key_refresh_time = 1 * 24 * 60 * 60;
  99 #endif /* EAP_SERVER_FAST */
 100
 101         /* Set to -1 as defaults depends on HT in setup */
 102         bss->wmm_enabled = -1;
 103
 104 #ifdef CONFIG_IEEE80211R_AP
 105         bss->ft_over_ds = 1;
 106         bss->rkh_pos_timeout = 86400;
 107         bss->rkh_neg_timeout = 60;
 108         bss->rkh_pull_timeout = 1000;
 109         bss->rkh_pull_retries = 4;
 110         bss->r0_key_lifetime = 1209600;
 111 #endif /* CONFIG_IEEE80211R_AP */
 112
 113         bss->radius_das_time_window = 300;
 114
 115         bss->sae_anti_clogging_threshold = 5;
 116         bss->sae_sync = 5;
 117
 118         bss->gas_frag_limit = 1400;
 119
 120 #ifdef CONFIG_FILS
 121         dl_list_init(&bss->fils_realms);
 122         bss->fils_hlp_wait_time = 30;
 123         bss->dhcp_server_port = DHCP_SERVER_PORT;
 124         bss->dhcp_relay_port = DHCP_SERVER_PORT;
 125 #endif /* CONFIG_FILS */
 126
 127         bss->broadcast_deauth = 1;
 128
 129 #ifdef CONFIG_MBO
 130         bss->mbo_cell_data_conn_pref = -1;
 131 #endif /* CONFIG_MBO */
 132
 133         /* Disable TLS v1.3 by default for now to avoid interoperability issue.
 134          * This can be enabled by default once the implementation has been fully
 135          * completed and tested with other implementations. */
 136         bss->tls_flags = TLS_CONN_DISABLE_TLSv1_3;
 137
 138         bss->send_probe_response = 1;
 139
 140 #ifdef CONFIG_HS20
 141         bss->hs20_release = (HS20_VERSION >> 4) + 1;
 142 #endif /* CONFIG_HS20 */
 143
 144 #ifdef CONFIG_MACSEC
 145         bss->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
 146         bss->macsec_port = 1;
 147 #endif /* CONFIG_MACSEC */
 148
 149         /* Default to strict CRL checking. */
 150         bss->check_crl_strict = 1;
 151 }
 152
 153
 154 struct hostapd_config * hostapd_config_defaults(void)
 155 {
 156 #define ecw2cw(ecw) ((1 << (ecw)) - 1)
 157
 158         struct hostapd_config *conf;
 159         struct hostapd_bss_config *bss;
 160         const int aCWmin = 4, aCWmax = 10;
 161         const struct hostapd_wmm_ac_params ac_bk =
 162                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
 163         const struct hostapd_wmm_ac_params ac_be =
 164                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
 165         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
 166                 { aCWmin - 1, aCWmin, 2, 3008 / 32, 0 };
 167         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
 168                 { aCWmin - 2, aCWmin - 1, 2, 1504 / 32, 0 };
 169         const struct hostapd_tx_queue_params txq_bk =
 170                 { 7, ecw2cw(aCWmin), ecw2cw(aCWmax), 0 };
 171         const struct hostapd_tx_queue_params txq_be =
 172                 { 3, ecw2cw(aCWmin), 4 * (ecw2cw(aCWmin) + 1) - 1, 0};
 173         const struct hostapd_tx_queue_params txq_vi =
 174                 { 1, (ecw2cw(aCWmin) + 1) / 2 - 1, ecw2cw(aCWmin), 30};
 175         const struct hostapd_tx_queue_params txq_vo =
 176                 { 1, (ecw2cw(aCWmin) + 1) / 4 - 1,
 177                   (ecw2cw(aCWmin) + 1) / 2 - 1, 15};
 178
 179 #undef ecw2cw
 180
 181         conf = os_zalloc(sizeof(*conf));
 182         bss = os_zalloc(sizeof(*bss));
 183         if (conf == NULL || bss == NULL) {
 184                 wpa_printf(MSG_ERROR, "Failed to allocate memory for "
 185                            "configuration data.");
 186                 os_free(conf);
 187                 os_free(bss);
 188                 return NULL;
 189         }
 190         conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *));
 191         if (conf->bss == NULL) {
 192                 os_free(conf);
 193                 os_free(bss);
 194                 return NULL;
 195         }
 196         conf->bss[0] = bss;
 197
 198         bss->radius = os_zalloc(sizeof(*bss->radius));
 199         if (bss->radius == NULL) {
 200                 os_free(conf->bss);
 201                 os_free(conf);
 202                 os_free(bss);
 203                 return NULL;
 204         }
 205
 206         hostapd_config_defaults_bss(bss);
 207
 208         conf->num_bss = 1;
 209
 210         conf->beacon_int = 100;
 211         conf->rts_threshold = -2; /* use driver default: 2347 */
 212         conf->fragm_threshold = -2; /* user driver default: 2346 */
 213         /* Set to invalid value means do not add Power Constraint IE */
 214         conf->local_pwr_constraint = -1;
 215
 216         conf->wmm_ac_params[0] = ac_be;
 217         conf->wmm_ac_params[1] = ac_bk;
 218         conf->wmm_ac_params[2] = ac_vi;
 219         conf->wmm_ac_params[3] = ac_vo;
 220
 221         conf->tx_queue[0] = txq_vo;
 222         conf->tx_queue[1] = txq_vi;
 223         conf->tx_queue[2] = txq_be;
 224         conf->tx_queue[3] = txq_bk;
 225
 226         conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
 227
 228         conf->ap_table_max_size = 255;
 229         conf->ap_table_expiration_time = 60;
 230         conf->track_sta_max_age = 180;
 231
 232 #ifdef CONFIG_TESTING_OPTIONS
 233         conf->ignore_probe_probability = 0.0;
 234         conf->ignore_auth_probability = 0.0;
 235         conf->ignore_assoc_probability = 0.0;
 236         conf->ignore_reassoc_probability = 0.0;
 237         conf->corrupt_gtk_rekey_mic_probability = 0.0;
 238         conf->ecsa_ie_only = 0;
 239 #endif /* CONFIG_TESTING_OPTIONS */
 240
 241         conf->acs = 0;
 242         conf->acs_ch_list.num = 0;
 243 #ifdef CONFIG_ACS
 244         conf->acs_num_scans = 5;
 245 #endif /* CONFIG_ACS */
 246
 247 #ifdef CONFIG_IEEE80211AX
 248         conf->he_op.he_rts_threshold = HE_OPERATION_RTS_THRESHOLD_MASK >>
 249                 HE_OPERATION_RTS_THRESHOLD_OFFSET;
 250         /* Set default basic MCS/NSS set to single stream MCS 0-7 */
 251         conf->he_op.he_basic_mcs_nss_set = 0xfffc;
 252 #endif /* CONFIG_IEEE80211AX */
 253
 254         /* The third octet of the country string uses an ASCII space character
 255          * by default to indicate that the regulations encompass all
 256          * environments for the current frequency band in the country. */
 257         conf->country[2] = ' ';
 258
 259         conf->rssi_reject_assoc_rssi = 0;
 260         conf->rssi_reject_assoc_timeout = 30;
 261
 262 #ifdef CONFIG_AIRTIME_POLICY
 263         conf->airtime_update_interval = AIRTIME_DEFAULT_UPDATE_INTERVAL;
 264 #endif /* CONFIG_AIRTIME_POLICY */
 265
 266         return conf;
 267 }
 268
 269
 270 int hostapd_mac_comp(const void *a, const void *b)
 271 {
 272         return os_memcmp(a, b, sizeof(macaddr));
 273 }
 274
 275
 276 static int hostapd_config_read_wpa_psk(const char *fname,
 277                                        struct hostapd_ssid *ssid)
 278 {
 279         FILE *f;
 280         char buf[128], *pos;
 281         const char *keyid;
 282         char *context;
 283         char *context2;
 284         char *token;
 285         char *name;
 286         char *value;
 287         int line = 0, ret = 0, len, ok;
 288         u8 addr[ETH_ALEN];
 289         struct hostapd_wpa_psk *psk;
 290
 291         if (!fname)
 292                 return 0;
 293
 294         f = fopen(fname, "r");
 295         if (!f) {
 296                 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname);
 297                 return -1;
 298         }
 299
 300         while (fgets(buf, sizeof(buf), f)) {
 301                 int vlan_id = 0;
 302
 303                 line++;
 304
 305                 if (buf[0] == '#')
 306                         continue;
 307                 pos = buf;
 308                 while (*pos != '\0') {
 309                         if (*pos == '\n') {
 310                                 *pos = '\0';
 311                                 break;
 312                         }
 313                         pos++;
 314                 }
 315                 if (buf[0] == '\0')
 316                         continue;
 317
 318                 context = NULL;
 319                 keyid = NULL;
 320                 while ((token = str_token(buf, " ", &context))) {
 321                         if (!os_strchr(token, '='))
 322                                 break;
 323                         context2 = NULL;
 324                         name = str_token(token, "=", &context2);
 325                         if (!name)
 326                                 break;
 327                         value = str_token(token, "", &context2);
 328                         if (!value)
 329                                 value = "";
 330                         if (!os_strcmp(name, "keyid")) {
 331                                 keyid = value;
 332                         } else if (!os_strcmp(name, "vlanid")) {
 333                                 vlan_id = atoi(value);
 334                         } else {
 335                                 wpa_printf(MSG_ERROR,
 336                                            "Unrecognized '%s=%s' on line %d in '%s'",
 337                                            name, value, line, fname);
 338                                 ret = -1;
 339                                 break;
 340                         }
 341                 }
 342
 343                 if (ret == -1)
 344                         break;
 345
 346                 if (!token)
 347                         token = "";
 348                 if (hwaddr_aton(token, addr)) {
 349                         wpa_printf(MSG_ERROR, "Invalid MAC address '%s' on "
 350                                    "line %d in '%s'", token, line, fname);
 351                         ret = -1;
 352                         break;
 353                 }
 354
 355                 psk = os_zalloc(sizeof(*psk));
 356                 if (psk == NULL) {
 357                         wpa_printf(MSG_ERROR, "WPA PSK allocation failed");
 358                         ret = -1;
 359                         break;
 360                 }
 361                 psk->vlan_id = vlan_id;
 362                 if (is_zero_ether_addr(addr))
 363                         psk->group = 1;
 364                 else
 365                         os_memcpy(psk->addr, addr, ETH_ALEN);
 366
 367                 pos = str_token(buf, "", &context);
 368                 if (!pos) {
 369                         wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'",
 370                                    line, fname);
 371                         os_free(psk);
 372                         ret = -1;
 373                         break;
 374                 }
 375
 376                 ok = 0;
 377                 len = os_strlen(pos);
 378                 if (len == 64 && hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
 379                         ok = 1;
 380                 else if (len >= 8 && len < 64) {
 381                         pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
 382                                     4096, psk->psk, PMK_LEN);
 383                         ok = 1;
 384                 }
 385                 if (!ok) {
 386                         wpa_printf(MSG_ERROR, "Invalid PSK '%s' on line %d in "
 387                                    "'%s'", pos, line, fname);
 388                         os_free(psk);
 389                         ret = -1;
 390                         break;
 391                 }
 392
 393                 if (keyid) {
 394                         len = os_strlcpy(psk->keyid, keyid, sizeof(psk->keyid));
 395                         if ((size_t) len >= sizeof(psk->keyid)) {
 396                                 wpa_printf(MSG_ERROR,
 397                                            "PSK keyid too long on line %d in '%s'",
 398                                            line, fname);
 399                                 os_free(psk);
 400                                 ret = -1;
 401                                 break;
 402                         }
 403                 }
 404
 405                 psk->next = ssid->wpa_psk;
 406                 ssid->wpa_psk = psk;
 407         }
 408
 409         fclose(f);
 410
 411         return ret;
 412 }
 413
 414
 415 static int hostapd_derive_psk(struct hostapd_ssid *ssid)
 416 {
 417         ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 418         if (ssid->wpa_psk == NULL) {
 419                 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK");
 420                 return -1;
 421         }
 422         wpa_hexdump_ascii(MSG_DEBUG, "SSID",
 423                           (u8 *) ssid->ssid, ssid->ssid_len);
 424         wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)",
 425                               (u8 *) ssid->wpa_passphrase,
 426                               os_strlen(ssid->wpa_passphrase));
 427         pbkdf2_sha1(ssid->wpa_passphrase,
 428                     ssid->ssid, ssid->ssid_len,
 429                     4096, ssid->wpa_psk->psk, PMK_LEN);
 430         wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)",
 431                         ssid->wpa_psk->psk, PMK_LEN);
 432         return 0;
 433 }
 434
 435
 436 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
 437 {
 438         struct hostapd_ssid *ssid = &conf->ssid;
 439
 440         if (ssid->wpa_passphrase != NULL) {
 441                 if (ssid->wpa_psk != NULL) {
 442                         wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
 443                                    "instead of passphrase");
 444                 } else {
 445                         wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on "
 446                                    "passphrase");
 447                         if (hostapd_derive_psk(ssid) < 0)
 448                                 return -1;
 449                 }
 450                 ssid->wpa_psk->group = 1;
 451         }
 452
 453         return hostapd_config_read_wpa_psk(ssid->wpa_psk_file, &conf->ssid);
 454 }
 455
 456
 457 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
 458                                        int num_servers)
 459 {
 460         int i;
 461
 462         for (i = 0; i < num_servers; i++) {
 463                 os_free(servers[i].shared_secret);
 464         }
 465         os_free(servers);
 466 }
 467
 468
 469 struct hostapd_radius_attr *
 470 hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type)
 471 {
 472         for (; attr; attr = attr->next) {
 473                 if (attr->type == type)
 474                         return attr;
 475         }
 476         return NULL;
 477 }
 478
 479
 480 struct hostapd_radius_attr * hostapd_parse_radius_attr(const char *value)
 481 {
 482         const char *pos;
 483         char syntax;
 484         struct hostapd_radius_attr *attr;
 485         size_t len;
 486
 487         attr = os_zalloc(sizeof(*attr));
 488         if (!attr)
 489                 return NULL;
 490
 491         attr->type = atoi(value);
 492
 493         pos = os_strchr(value, ':');
 494         if (!pos) {
 495                 attr->val = wpabuf_alloc(1);
 496                 if (!attr->val) {
 497                         os_free(attr);
 498                         return NULL;
 499                 }
 500                 wpabuf_put_u8(attr->val, 0);
 501                 return attr;
 502         }
 503
 504         pos++;
 505         if (pos[0] == '\0' || pos[1] != ':') {
 506                 os_free(attr);
 507                 return NULL;
 508         }
 509         syntax = *pos++;
 510         pos++;
 511
 512         switch (syntax) {
 513         case 's':
 514                 attr->val = wpabuf_alloc_copy(pos, os_strlen(pos));
 515                 break;
 516         case 'x':
 517                 len = os_strlen(pos);
 518                 if (len & 1)
 519                         break;
 520                 len /= 2;
 521                 attr->val = wpabuf_alloc(len);
 522                 if (!attr->val)
 523                         break;
 524                 if (hexstr2bin(pos, wpabuf_put(attr->val, len), len) < 0) {
 525                         wpabuf_free(attr->val);
 526                         os_free(attr);
 527                         return NULL;
 528                 }
 529                 break;
 530         case 'd':
 531                 attr->val = wpabuf_alloc(4);
 532                 if (attr->val)
 533                         wpabuf_put_be32(attr->val, atoi(pos));
 534                 break;
 535         default:
 536                 os_free(attr);
 537                 return NULL;
 538         }
 539
 540         if (!attr->val) {
 541                 os_free(attr);
 542                 return NULL;
 543         }
 544
 545         return attr;
 546 }
 547
 548
 549 void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr)
 550 {
 551         struct hostapd_radius_attr *prev;
 552
 553         while (attr) {
 554                 prev = attr;
 555                 attr = attr->next;
 556                 wpabuf_free(prev->val);
 557                 os_free(prev);
 558         }
 559 }
 560
 561
 562 void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
 563 {
 564         hostapd_config_free_radius_attr(user->accept_attr);
 565         os_free(user->identity);
 566         bin_clear_free(user->password, user->password_len);
 567         bin_clear_free(user->salt, user->salt_len);
 568         os_free(user);
 569 }
 570
 571
 572 void hostapd_config_free_eap_users(struct hostapd_eap_user *user)
 573 {
 574         struct hostapd_eap_user *prev_user;
 575
 576         while (user) {
 577                 prev_user = user;
 578                 user = user->next;
 579                 hostapd_config_free_eap_user(prev_user);
 580         }
 581 }
 582
 583
 584 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
 585 {
 586         int i;
 587         for (i = 0; i < NUM_WEP_KEYS; i++) {
 588                 bin_clear_free(keys->key[i], keys->len[i]);
 589                 keys->key[i] = NULL;
 590         }
 591 }
 592
 593
 594 void hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk **l)
 595 {
 596         struct hostapd_wpa_psk *psk, *tmp;
 597
 598         for (psk = *l; psk;) {
 599                 tmp = psk;
 600                 psk = psk->next;
 601                 bin_clear_free(tmp, sizeof(*tmp));
 602         }
 603         *l = NULL;
 604 }
 605
 606
 607 static void hostapd_config_free_anqp_elem(struct hostapd_bss_config *conf)
 608 {
 609         struct anqp_element *elem;
 610
 611         while ((elem = dl_list_first(&conf->anqp_elem, struct anqp_element,
 612                                      list))) {
 613                 dl_list_del(&elem->list);
 614                 wpabuf_free(elem->payload);
 615                 os_free(elem);
 616         }
 617 }
 618
 619
 620 static void hostapd_config_free_fils_realms(struct hostapd_bss_config *conf)
 621 {
 622 #ifdef CONFIG_FILS
 623         struct fils_realm *realm;
 624
 625         while ((realm = dl_list_first(&conf->fils_realms, struct fils_realm,
 626                                       list))) {
 627                 dl_list_del(&realm->list);
 628                 os_free(realm);
 629         }
 630 #endif /* CONFIG_FILS */
 631 }
 632
 633
 634 static void hostapd_config_free_sae_passwords(struct hostapd_bss_config *conf)
 635 {
 636         struct sae_password_entry *pw, *tmp;
 637
 638         pw = conf->sae_passwords;
 639         conf->sae_passwords = NULL;
 640         while (pw) {
 641                 tmp = pw;
 642                 pw = pw->next;
 643                 str_clear_free(tmp->password);
 644                 os_free(tmp->identifier);
 645                 os_free(tmp);
 646         }
 647 }
 648
 649
 650 #ifdef CONFIG_DPP2
 651 static void hostapd_dpp_controller_conf_free(struct dpp_controller_conf *conf)
 652 {
 653         struct dpp_controller_conf *prev;
 654
 655         while (conf) {
 656                 prev = conf;
 657                 conf = conf->next;
 658                 os_free(prev);
 659         }
 660 }
 661 #endif /* CONFIG_DPP2 */
 662
 663
 664 void hostapd_config_free_bss(struct hostapd_bss_config *conf)
 665 {
 666 #if defined(CONFIG_WPS) || defined(CONFIG_HS20)
 667         size_t i;
 668 #endif
 669
 670         if (conf == NULL)
 671                 return;
 672
 673         hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);
 674
 675         str_clear_free(conf->ssid.wpa_passphrase);
 676         os_free(conf->ssid.wpa_psk_file);
 677         hostapd_config_free_wep(&conf->ssid.wep);
 678 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 679         os_free(conf->ssid.vlan_tagged_interface);
 680 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 681
 682         hostapd_config_free_eap_users(conf->eap_user);
 683         os_free(conf->eap_user_sqlite);
 684
 685         os_free(conf->eap_req_id_text);
 686         os_free(conf->erp_domain);
 687         os_free(conf->accept_mac);
 688         os_free(conf->deny_mac);
 689         os_free(conf->nas_identifier);
 690         if (conf->radius) {
 691                 hostapd_config_free_radius(conf->radius->auth_servers,
 692                                            conf->radius->num_auth_servers);
 693                 hostapd_config_free_radius(conf->radius->acct_servers,
 694                                            conf->radius->num_acct_servers);
 695         }
 696         hostapd_config_free_radius_attr(conf->radius_auth_req_attr);
 697         hostapd_config_free_radius_attr(conf->radius_acct_req_attr);
 698         os_free(conf->radius_req_attr_sqlite);
 699         os_free(conf->rsn_preauth_interfaces);
 700         os_free(conf->ctrl_interface);
 701         os_free(conf->ca_cert);
 702         os_free(conf->server_cert);
 703         os_free(conf->server_cert2);
 704         os_free(conf->private_key);
 705         os_free(conf->private_key2);
 706         os_free(conf->private_key_passwd);
 707         os_free(conf->private_key_passwd2);
 708         os_free(conf->check_cert_subject);
 709         os_free(conf->ocsp_stapling_response);
 710         os_free(conf->ocsp_stapling_response_multi);
 711         os_free(conf->dh_file);
 712         os_free(conf->openssl_ciphers);
 713         os_free(conf->openssl_ecdh_curves);
 714         os_free(conf->pac_opaque_encr_key);
 715         os_free(conf->eap_fast_a_id);
 716         os_free(conf->eap_fast_a_id_info);
 717         os_free(conf->eap_sim_db);
 718         os_free(conf->radius_server_clients);
 719         os_free(conf->radius);
 720         os_free(conf->radius_das_shared_secret);
 721         hostapd_config_free_vlan(conf);
 722         os_free(conf->time_zone);
 723
 724 #ifdef CONFIG_IEEE80211R_AP
 725         {
 726                 struct ft_remote_r0kh *r0kh, *r0kh_prev;
 727                 struct ft_remote_r1kh *r1kh, *r1kh_prev;
 728
 729                 r0kh = conf->r0kh_list;
 730                 conf->r0kh_list = NULL;
 731                 while (r0kh) {
 732                         r0kh_prev = r0kh;
 733                         r0kh = r0kh->next;
 734                         os_free(r0kh_prev);
 735                 }
 736
 737                 r1kh = conf->r1kh_list;
 738                 conf->r1kh_list = NULL;
 739                 while (r1kh) {
 740                         r1kh_prev = r1kh;
 741                         r1kh = r1kh->next;
 742                         os_free(r1kh_prev);
 743                 }
 744         }
 745 #endif /* CONFIG_IEEE80211R_AP */
 746
 747 #ifdef CONFIG_WPS
 748         os_free(conf->wps_pin_requests);
 749         os_free(conf->device_name);
 750         os_free(conf->manufacturer);
 751         os_free(conf->model_name);
 752         os_free(conf->model_number);
 753         os_free(conf->serial_number);
 754         os_free(conf->config_methods);
 755         os_free(conf->ap_pin);
 756         os_free(conf->extra_cred);
 757         os_free(conf->ap_settings);
 758         hostapd_config_clear_wpa_psk(&conf->multi_ap_backhaul_ssid.wpa_psk);
 759         str_clear_free(conf->multi_ap_backhaul_ssid.wpa_passphrase);
 760         os_free(conf->upnp_iface);
 761         os_free(conf->friendly_name);
 762         os_free(conf->manufacturer_url);
 763         os_free(conf->model_description);
 764         os_free(conf->model_url);
 765         os_free(conf->upc);
 766         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
 767                 wpabuf_free(conf->wps_vendor_ext[i]);
 768         wpabuf_free(conf->wps_nfc_dh_pubkey);
 769         wpabuf_free(conf->wps_nfc_dh_privkey);
 770         wpabuf_free(conf->wps_nfc_dev_pw);
 771 #endif /* CONFIG_WPS */
 772
 773         os_free(conf->roaming_consortium);
 774         os_free(conf->venue_name);
 775         os_free(conf->venue_url);
 776         os_free(conf->nai_realm_data);
 777         os_free(conf->network_auth_type);
 778         os_free(conf->anqp_3gpp_cell_net);
 779         os_free(conf->domain_name);
 780         hostapd_config_free_anqp_elem(conf);
 781
 782 #ifdef CONFIG_RADIUS_TEST
 783         os_free(conf->dump_msk_file);
 784 #endif /* CONFIG_RADIUS_TEST */
 785
 786 #ifdef CONFIG_HS20
 787         os_free(conf->hs20_oper_friendly_name);
 788         os_free(conf->hs20_wan_metrics);
 789         os_free(conf->hs20_connection_capability);
 790         os_free(conf->hs20_operating_class);
 791         os_free(conf->hs20_icons);
 792         if (conf->hs20_osu_providers) {
 793                 for (i = 0; i < conf->hs20_osu_providers_count; i++) {
 794                         struct hs20_osu_provider *p;
 795                         size_t j;
 796                         p = &conf->hs20_osu_providers[i];
 797                         os_free(p->friendly_name);
 798                         os_free(p->server_uri);
 799                         os_free(p->method_list);
 800                         for (j = 0; j < p->icons_count; j++)
 801                                 os_free(p->icons[j]);
 802                         os_free(p->icons);
 803                         os_free(p->osu_nai);
 804                         os_free(p->osu_nai2);
 805                         os_free(p->service_desc);
 806                 }
 807                 os_free(conf->hs20_osu_providers);
 808         }
 809         if (conf->hs20_operator_icon) {
 810                 for (i = 0; i < conf->hs20_operator_icon_count; i++)
 811                         os_free(conf->hs20_operator_icon[i]);
 812                 os_free(conf->hs20_operator_icon);
 813         }
 814         os_free(conf->subscr_remediation_url);
 815         os_free(conf->hs20_sim_provisioning_url);
 816         os_free(conf->t_c_filename);
 817         os_free(conf->t_c_server_url);
 818 #endif /* CONFIG_HS20 */
 819
 820         wpabuf_free(conf->vendor_elements);
 821         wpabuf_free(conf->assocresp_elements);
 822
 823         os_free(conf->sae_groups);
 824 #ifdef CONFIG_OWE
 825         os_free(conf->owe_groups);
 826 #endif /* CONFIG_OWE */
 827
 828         os_free(conf->wowlan_triggers);
 829
 830         os_free(conf->server_id);
 831
 832 #ifdef CONFIG_TESTING_OPTIONS
 833         wpabuf_free(conf->own_ie_override);
 834         wpabuf_free(conf->sae_commit_override);
 835 #endif /* CONFIG_TESTING_OPTIONS */
 836
 837         os_free(conf->no_probe_resp_if_seen_on);
 838         os_free(conf->no_auth_if_seen_on);
 839
 840         hostapd_config_free_fils_realms(conf);
 841
 842 #ifdef CONFIG_DPP
 843         os_free(conf->dpp_connector);
 844         wpabuf_free(conf->dpp_netaccesskey);
 845         wpabuf_free(conf->dpp_csign);
 846 #ifdef CONFIG_DPP2
 847         hostapd_dpp_controller_conf_free(conf->dpp_controller);
 848 #endif /* CONFIG_DPP2 */
 849 #endif /* CONFIG_DPP */
 850
 851         hostapd_config_free_sae_passwords(conf);
 852
 853 #ifdef CONFIG_AIRTIME_POLICY
 854         {
 855                 struct airtime_sta_weight *wt, *wt_prev;
 856
 857                 wt = conf->airtime_weight_list;
 858                 conf->airtime_weight_list = NULL;
 859                 while (wt) {
 860                         wt_prev = wt;
 861                         wt = wt->next;
 862                         os_free(wt_prev);
 863                 }
 864         }
 865 #endif /* CONFIG_AIRTIME_POLICY */
 866
 867         os_free(conf);
 868 }
 869
 870
 871 /**
 872  * hostapd_config_free - Free hostapd configuration
 873  * @conf: Configuration data from hostapd_config_read().
 874  */
 875 void hostapd_config_free(struct hostapd_config *conf)
 876 {
 877         size_t i;
 878
 879         if (conf == NULL)
 880                 return;
 881
 882         for (i = 0; i < conf->num_bss; i++)
 883                 hostapd_config_free_bss(conf->bss[i]);
 884         os_free(conf->bss);
 885         os_free(conf->supported_rates);
 886         os_free(conf->basic_rates);
 887         os_free(conf->acs_ch_list.range);
 888         os_free(conf->driver_params);
 889 #ifdef CONFIG_ACS
 890         os_free(conf->acs_chan_bias);
 891 #endif /* CONFIG_ACS */
 892         wpabuf_free(conf->lci);
 893         wpabuf_free(conf->civic);
 894
 895         os_free(conf);
 896 }
 897
 898
 899 /**
 900  * hostapd_maclist_found - Find a MAC address from a list
 901  * @list: MAC address list
 902  * @num_entries: Number of addresses in the list
 903  * @addr: Address to search for
 904  * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed
 905  * Returns: 1 if address is in the list or 0 if not.
 906  *
 907  * Perform a binary search for given MAC address from a pre-sorted list.
 908  */
 909 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
 910                           const u8 *addr, struct vlan_description *vlan_id)
 911 {
 912         int start, end, middle, res;
 913
 914         start = 0;
 915         end = num_entries - 1;
 916
 917         while (start <= end) {
 918                 middle = (start + end) / 2;
 919                 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
 920                 if (res == 0) {
 921                         if (vlan_id)
 922                                 *vlan_id = list[middle].vlan_id;
 923                         return 1;
 924                 }
 925                 if (res < 0)
 926                         start = middle + 1;
 927                 else
 928                         end = middle - 1;
 929         }
 930
 931         return 0;
 932 }
 933
 934
 935 int hostapd_rate_found(int *list, int rate)
 936 {
 937         int i;
 938
 939         if (list == NULL)
 940                 return 0;
 941
 942         for (i = 0; list[i] >= 0; i++)
 943                 if (list[i] == rate)
 944                         return 1;
 945
 946         return 0;
 947 }
 948
 949
 950 int hostapd_vlan_valid(struct hostapd_vlan *vlan,
 951                        struct vlan_description *vlan_desc)
 952 {
 953         struct hostapd_vlan *v = vlan;
 954         int i;
 955
 956         if (!vlan_desc->notempty || vlan_desc->untagged < 0 ||
 957             vlan_desc->untagged > MAX_VLAN_ID)
 958                 return 0;
 959         for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) {
 960                 if (vlan_desc->tagged[i] < 0 ||
 961                     vlan_desc->tagged[i] > MAX_VLAN_ID)
 962                         return 0;
 963         }
 964         if (!vlan_desc->untagged && !vlan_desc->tagged[0])
 965                 return 0;
 966
 967         while (v) {
 968                 if (!vlan_compare(&v->vlan_desc, vlan_desc) ||
 969                     v->vlan_id == VLAN_ID_WILDCARD)
 970                         return 1;
 971                 v = v->next;
 972         }
 973         return 0;
 974 }
 975
 976
 977 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
 978 {
 979         struct hostapd_vlan *v = vlan;
 980         while (v) {
 981                 if (v->vlan_id == vlan_id)
 982                         return v->ifname;
 983                 v = v->next;
 984         }
 985         return NULL;
 986 }
 987
 988
 989 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
 990                            const u8 *addr, const u8 *p2p_dev_addr,
 991                            const u8 *prev_psk, int *vlan_id)
 992 {
 993         struct hostapd_wpa_psk *psk;
 994         int next_ok = prev_psk == NULL;
 995
 996         if (vlan_id)
 997                 *vlan_id = 0;
 998
 999         if (p2p_dev_addr && !is_zero_ether_addr(p2p_dev_addr)) {
1000                 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1001                            " p2p_dev_addr=" MACSTR " prev_psk=%p",
1002                            MAC2STR(addr), MAC2STR(p2p_dev_addr), prev_psk);
1003                 addr = NULL; /* Use P2P Device Address for matching */
1004         } else {
1005                 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1006                            " prev_psk=%p",
1007                            MAC2STR(addr), prev_psk);
1008         }
1009
1010         for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
1011                 if (next_ok &&
1012                     (psk->group ||
1013                      (addr && os_memcmp(psk->addr, addr, ETH_ALEN) == 0) ||
1014                      (!addr && p2p_dev_addr &&
1015                       os_memcmp(psk->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) ==
1016                       0))) {
1017                         if (vlan_id)
1018                                 *vlan_id = psk->vlan_id;
1019                         return psk->psk;
1020                 }
1021
1022                 if (psk->psk == prev_psk)
1023                         next_ok = 1;
1024         }
1025
1026         return NULL;
1027 }
1028
1029
1030 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
1031                                     struct hostapd_config *conf,
1032                                     int full_config)
1033 {
1034         if (full_config && bss->ieee802_1x && !bss->eap_server &&
1035             !bss->radius->auth_servers) {
1036                 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
1037                            "EAP authenticator configured).");
1038                 return -1;
1039         }
1040
1041         if (bss->wpa) {
1042                 int wep, i;
1043
1044                 wep = bss->default_wep_key_len > 0 ||
1045                        bss->individual_wep_key_len > 0;
1046                 for (i = 0; i < NUM_WEP_KEYS; i++) {
1047                         if (bss->ssid.wep.keys_set) {
1048                                 wep = 1;
1049                                 break;
1050                         }
1051                 }
1052
1053                 if (wep) {
1054                         wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported");
1055                         return -1;
1056                 }
1057         }
1058
1059         if (full_config && bss->wpa &&
1060             bss->wpa_psk_radius != PSK_RADIUS_IGNORED &&
1061             bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
1062                 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no "
1063                            "RADIUS checking (macaddr_acl=2) enabled.");
1064                 return -1;
1065         }
1066
1067         if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
1068             bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
1069             bss->ssid.wpa_psk_file == NULL &&
1070             (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED ||
1071              bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) {
1072                 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
1073                            "is not configured.");
1074                 return -1;
1075         }
1076
1077         if (full_config && !is_zero_ether_addr(bss->bssid)) {
1078                 size_t i;
1079
1080                 for (i = 0; i < conf->num_bss; i++) {
1081                         if (conf->bss[i] != bss &&
1082                             (hostapd_mac_comp(conf->bss[i]->bssid,
1083                                               bss->bssid) == 0)) {
1084                                 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
1085                                            " on interface '%s' and '%s'.",
1086                                            MAC2STR(bss->bssid),
1087                                            conf->bss[i]->iface, bss->iface);
1088                                 return -1;
1089                         }
1090                 }
1091         }
1092
1093 #ifdef CONFIG_IEEE80211R_AP
1094         if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) &&
1095             (bss->nas_identifier == NULL ||
1096              os_strlen(bss->nas_identifier) < 1 ||
1097              os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
1098                 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
1099                            "nas_identifier to be configured as a 1..48 octet "
1100                            "string");
1101                 return -1;
1102         }
1103 #endif /* CONFIG_IEEE80211R_AP */
1104
1105 #ifdef CONFIG_IEEE80211N
1106         if (full_config && conf->ieee80211n &&
1107             conf->hw_mode == HOSTAPD_MODE_IEEE80211B) {
1108                 bss->disable_11n = 1;
1109                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not "
1110                            "allowed, disabling HT capabilities");
1111         }
1112
1113         if (full_config && conf->ieee80211n &&
1114             bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1115                 bss->disable_11n = 1;
1116                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not "
1117                            "allowed, disabling HT capabilities");
1118         }
1119
1120         if (full_config && conf->ieee80211n && bss->wpa &&
1121             !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1122             !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1123                                    WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1124         {
1125                 bss->disable_11n = 1;
1126                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
1127                            "requires CCMP/GCMP to be enabled, disabling HT "
1128                            "capabilities");
1129         }
1130 #endif /* CONFIG_IEEE80211N */
1131
1132 #ifdef CONFIG_IEEE80211AC
1133         if (full_config && conf->ieee80211ac &&
1134             bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1135                 bss->disable_11ac = 1;
1136                 wpa_printf(MSG_ERROR,
1137                            "VHT (IEEE 802.11ac) with WEP is not allowed, disabling VHT capabilities");
1138         }
1139
1140         if (full_config && conf->ieee80211ac && bss->wpa &&
1141             !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1142             !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1143                                    WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1144         {
1145                 bss->disable_11ac = 1;
1146                 wpa_printf(MSG_ERROR,
1147                            "VHT (IEEE 802.11ac) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling VHT capabilities");
1148         }
1149 #endif /* CONFIG_IEEE80211AC */
1150
1151 #ifdef CONFIG_WPS
1152         if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) {
1153                 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
1154                            "configuration forced WPS to be disabled");
1155                 bss->wps_state = 0;
1156         }
1157
1158         if (full_config && bss->wps_state &&
1159             bss->ssid.wep.keys_set && bss->wpa == 0) {
1160                 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
1161                            "disabled");
1162                 bss->wps_state = 0;
1163         }
1164
1165         if (full_config && bss->wps_state && bss->wpa &&
1166             (!(bss->wpa & 2) ||
1167              !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1168                                     WPA_CIPHER_CCMP_256 |
1169                                     WPA_CIPHER_GCMP_256)))) {
1170                 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without "
1171                            "WPA2/CCMP/GCMP forced WPS to be disabled");
1172                 bss->wps_state = 0;
1173         }
1174 #endif /* CONFIG_WPS */
1175
1176 #ifdef CONFIG_HS20
1177         if (full_config && bss->hs20 &&
1178             (!(bss->wpa & 2) ||
1179              !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1180                                     WPA_CIPHER_CCMP_256 |
1181                                     WPA_CIPHER_GCMP_256)))) {
1182                 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP "
1183                            "configuration is required for Hotspot 2.0 "
1184                            "functionality");
1185                 return -1;
1186         }
1187 #endif /* CONFIG_HS20 */
1188
1189 #ifdef CONFIG_MBO
1190         if (full_config && bss->mbo_enabled && (bss->wpa & 2) &&
1191             bss->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
1192                 wpa_printf(MSG_ERROR,
1193                            "MBO: PMF needs to be enabled whenever using WPA2 with MBO");
1194                 return -1;
1195         }
1196 #endif /* CONFIG_MBO */
1197
1198 #ifdef CONFIG_OCV
1199         if (full_config && bss->ieee80211w == NO_MGMT_FRAME_PROTECTION &&
1200             bss->ocv) {
1201                 wpa_printf(MSG_ERROR,
1202                            "OCV: PMF needs to be enabled whenever using OCV");
1203                 return -1;
1204         }
1205 #endif /* CONFIG_OCV */
1206
1207         return 0;
1208 }
1209
1210
1211 static int hostapd_config_check_cw(struct hostapd_config *conf, int queue)
1212 {
1213         int tx_cwmin = conf->tx_queue[queue].cwmin;
1214         int tx_cwmax = conf->tx_queue[queue].cwmax;
1215         int ac_cwmin = conf->wmm_ac_params[queue].cwmin;
1216         int ac_cwmax = conf->wmm_ac_params[queue].cwmax;
1217
1218         if (tx_cwmin > tx_cwmax) {
1219                 wpa_printf(MSG_ERROR,
1220                            "Invalid TX queue cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1221                            tx_cwmin, tx_cwmax);
1222                 return -1;
1223         }
1224         if (ac_cwmin > ac_cwmax) {
1225                 wpa_printf(MSG_ERROR,
1226                            "Invalid WMM AC cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1227                            ac_cwmin, ac_cwmax);
1228                 return -1;
1229         }
1230         return 0;
1231 }
1232
1233
1234 int hostapd_config_check(struct hostapd_config *conf, int full_config)
1235 {
1236         size_t i;
1237
1238         if (full_config && conf->ieee80211d &&
1239             (!conf->country[0] || !conf->country[1])) {
1240                 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
1241                            "setting the country_code");
1242                 return -1;
1243         }
1244
1245         if (full_config && conf->ieee80211h && !conf->ieee80211d) {
1246                 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without "
1247                            "IEEE 802.11d enabled");
1248                 return -1;
1249         }
1250
1251         if (full_config && conf->local_pwr_constraint != -1 &&
1252             !conf->ieee80211d) {
1253                 wpa_printf(MSG_ERROR, "Cannot add Power Constraint element without Country element");
1254                 return -1;
1255         }
1256
1257         if (full_config && conf->spectrum_mgmt_required &&
1258             conf->local_pwr_constraint == -1) {
1259                 wpa_printf(MSG_ERROR, "Cannot set Spectrum Management bit without Country and Power Constraint elements");
1260                 return -1;
1261         }
1262
1263 #ifdef CONFIG_AIRTIME_POLICY
1264         if (full_config && conf->airtime_mode > AIRTIME_MODE_STATIC &&
1265             !conf->airtime_update_interval) {
1266                 wpa_printf(MSG_ERROR, "Airtime update interval cannot be zero");
1267                 return -1;
1268         }
1269 #endif /* CONFIG_AIRTIME_POLICY */
1270         for (i = 0; i < NUM_TX_QUEUES; i++) {
1271                 if (hostapd_config_check_cw(conf, i))
1272                         return -1;
1273         }
1274
1275         for (i = 0; i < conf->num_bss; i++) {
1276                 if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
1277                         return -1;
1278         }
1279
1280         return 0;
1281 }
1282
1283
1284 void hostapd_set_security_params(struct hostapd_bss_config *bss,
1285                                  int full_config)
1286 {
1287         if (bss->individual_wep_key_len == 0) {
1288                 /* individual keys are not use; can use key idx0 for
1289                  * broadcast keys */
1290                 bss->broadcast_key_idx_min = 0;
1291         }
1292
1293         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
1294                 bss->rsn_pairwise = bss->wpa_pairwise;
1295         if (bss->group_cipher)
1296                 bss->wpa_group = bss->group_cipher;
1297         else
1298                 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
1299                                                             bss->wpa_pairwise,
1300                                                             bss->rsn_pairwise);
1301         if (!bss->wpa_group_rekey_set)
1302                 bss->wpa_group_rekey = bss->wpa_group == WPA_CIPHER_TKIP ?
1303                         600 : 86400;
1304
1305         if (full_config) {
1306                 bss->radius->auth_server = bss->radius->auth_servers;
1307                 bss->radius->acct_server = bss->radius->acct_servers;
1308         }
1309
1310         if (bss->wpa && bss->ieee802_1x) {
1311                 bss->ssid.security_policy = SECURITY_WPA;
1312         } else if (bss->wpa) {
1313                 bss->ssid.security_policy = SECURITY_WPA_PSK;
1314         } else if (bss->ieee802_1x) {
1315                 int cipher = WPA_CIPHER_NONE;
1316                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
1317                 bss->ssid.wep.default_len = bss->default_wep_key_len;
1318                 if (full_config && bss->default_wep_key_len) {
1319                         cipher = bss->default_wep_key_len >= 13 ?
1320                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
1321                 } else if (full_config && bss->ssid.wep.keys_set) {
1322                         if (bss->ssid.wep.len[0] >= 13)
1323                                 cipher = WPA_CIPHER_WEP104;
1324                         else
1325                                 cipher = WPA_CIPHER_WEP40;
1326                 }
1327                 bss->wpa_group = cipher;
1328                 bss->wpa_pairwise = cipher;
1329                 bss->rsn_pairwise = cipher;
1330                 if (full_config)
1331                         bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
1332         } else if (bss->ssid.wep.keys_set) {
1333                 int cipher = WPA_CIPHER_WEP40;
1334                 if (bss->ssid.wep.len[0] >= 13)
1335                         cipher = WPA_CIPHER_WEP104;
1336                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
1337                 bss->wpa_group = cipher;
1338                 bss->wpa_pairwise = cipher;
1339                 bss->rsn_pairwise = cipher;
1340                 if (full_config)
1341                         bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1342         } else if (bss->osen) {
1343                 bss->ssid.security_policy = SECURITY_OSEN;
1344                 bss->wpa_group = WPA_CIPHER_CCMP;
1345                 bss->wpa_pairwise = 0;
1346                 bss->rsn_pairwise = WPA_CIPHER_CCMP;
1347         } else {
1348                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
1349                 if (full_config) {
1350                         bss->wpa_group = WPA_CIPHER_NONE;
1351                         bss->wpa_pairwise = WPA_CIPHER_NONE;
1352                         bss->rsn_pairwise = WPA_CIPHER_NONE;
1353                         bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1354                 }
1355         }
1356 }
1357
1358
1359 int hostapd_sae_pw_id_in_use(struct hostapd_bss_config *conf)
1360 {
1361         int with_id = 0, without_id = 0;
1362         struct sae_password_entry *pw;
1363
1364         if (conf->ssid.wpa_passphrase)
1365                 without_id = 1;
1366
1367         for (pw = conf->sae_passwords; pw; pw = pw->next) {
1368                 if (pw->identifier)
1369                         with_id = 1;
1370                 else
1371                         without_id = 1;
1372                 if (with_id && without_id)
1373                         break;
1374         }
1375
1376         if (with_id && !without_id)
1377                 return 2;
1378         return with_id;
1379 }