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 "common/sae.h"
  20 #include "eap_common/eap_wsc_common.h"
  21 #include "eap_server/eap.h"
  22 #include "wpa_auth.h"
  23 #include "sta_info.h"
  24 #include "airtime_policy.h"
  25 #include "ap_config.h"
  26
  27
  28 static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
  29 {
  30         struct hostapd_vlan *vlan, *prev;
  31
  32         vlan = bss->vlan;
  33         prev = NULL;
  34         while (vlan) {
  35                 prev = vlan;
  36                 vlan = vlan->next;
  37                 os_free(prev);
  38         }
  39
  40         bss->vlan = NULL;
  41 }
  42
  43
  44 #ifndef DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES
  45 #define DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES 0
  46 #endif /* DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES */
  47
  48 void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
  49 {
  50         dl_list_init(&bss->anqp_elem);
  51
  52         bss->logger_syslog_level = HOSTAPD_LEVEL_INFO;
  53         bss->logger_stdout_level = HOSTAPD_LEVEL_INFO;
  54         bss->logger_syslog = (unsigned int) -1;
  55         bss->logger_stdout = (unsigned int) -1;
  56
  57         bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
  58
  59         bss->wep_rekeying_period = 300;
  60         /* use key0 in individual key and key1 in broadcast key */
  61         bss->broadcast_key_idx_min = 1;
  62         bss->broadcast_key_idx_max = 2;
  63         bss->eap_reauth_period = 3600;
  64
  65         bss->wpa_group_rekey = 600;
  66         bss->wpa_gmk_rekey = 86400;
  67         bss->wpa_group_update_count = 4;
  68         bss->wpa_pairwise_update_count = 4;
  69         bss->wpa_disable_eapol_key_retries =
  70                 DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES;
  71         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
  72         bss->wpa_pairwise = WPA_CIPHER_TKIP;
  73         bss->wpa_group = WPA_CIPHER_TKIP;
  74         bss->rsn_pairwise = 0;
  75
  76         bss->max_num_sta = MAX_STA_COUNT;
  77
  78         bss->dtim_period = 2;
  79
  80         bss->radius_server_auth_port = 1812;
  81         bss->eap_sim_db_timeout = 1;
  82         bss->eap_sim_id = 3;
  83         bss->ap_max_inactivity = AP_MAX_INACTIVITY;
  84         bss->eapol_version = EAPOL_VERSION;
  85
  86         bss->max_listen_interval = 65535;
  87
  88         bss->pwd_group = 19; /* ECC: GF(p=256) */
  89
  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 #ifdef EAP_SERVER_FAST
  94          /* both anonymous and authenticated provisioning */
  95         bss->eap_fast_prov = 3;
  96         bss->pac_key_lifetime = 7 * 24 * 60 * 60;
  97         bss->pac_key_refresh_time = 1 * 24 * 60 * 60;
  98 #endif /* EAP_SERVER_FAST */
  99
 100         /* Set to -1 as defaults depends on HT in setup */
 101         bss->wmm_enabled = -1;
 102
 103 #ifdef CONFIG_IEEE80211R_AP
 104         bss->ft_over_ds = 1;
 105         bss->rkh_pos_timeout = 86400;
 106         bss->rkh_neg_timeout = 60;
 107         bss->rkh_pull_timeout = 1000;
 108         bss->rkh_pull_retries = 4;
 109         bss->r0_key_lifetime = 1209600;
 110 #endif /* CONFIG_IEEE80211R_AP */
 111
 112         bss->radius_das_time_window = 300;
 113
 114         bss->sae_anti_clogging_threshold = 5;
 115         bss->sae_sync = 5;
 116
 117         bss->gas_frag_limit = 1400;
 118
 119 #ifdef CONFIG_FILS
 120         dl_list_init(&bss->fils_realms);
 121         bss->fils_hlp_wait_time = 30;
 122         bss->dhcp_server_port = DHCP_SERVER_PORT;
 123         bss->dhcp_relay_port = DHCP_SERVER_PORT;
 124 #endif /* CONFIG_FILS */
 125
 126         bss->broadcast_deauth = 1;
 127
 128 #ifdef CONFIG_MBO
 129         bss->mbo_cell_data_conn_pref = -1;
 130 #endif /* CONFIG_MBO */
 131
 132         /* Disable TLS v1.3 by default for now to avoid interoperability issue.
 133          * This can be enabled by default once the implementation has been fully
 134          * completed and tested with other implementations. */
 135         bss->tls_flags = TLS_CONN_DISABLE_TLSv1_3;
 136
 137         bss->max_auth_rounds = 100;
 138         bss->max_auth_rounds_short = 50;
 139
 140         bss->send_probe_response = 1;
 141
 142 #ifdef CONFIG_HS20
 143         bss->hs20_release = (HS20_VERSION >> 4) + 1;
 144 #endif /* CONFIG_HS20 */
 145
 146 #ifdef CONFIG_MACSEC
 147         bss->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
 148         bss->macsec_port = 1;
 149 #endif /* CONFIG_MACSEC */
 150
 151         /* Default to strict CRL checking. */
 152         bss->check_crl_strict = 1;
 153 }
 154
 155
 156 struct hostapd_config * hostapd_config_defaults(void)
 157 {
 158 #define ecw2cw(ecw) ((1 << (ecw)) - 1)
 159
 160         struct hostapd_config *conf;
 161         struct hostapd_bss_config *bss;
 162         const int aCWmin = 4, aCWmax = 10;
 163         const struct hostapd_wmm_ac_params ac_bk =
 164                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
 165         const struct hostapd_wmm_ac_params ac_be =
 166                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
 167         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
 168                 { aCWmin - 1, aCWmin, 2, 3008 / 32, 0 };
 169         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
 170                 { aCWmin - 2, aCWmin - 1, 2, 1504 / 32, 0 };
 171         const struct hostapd_tx_queue_params txq_bk =
 172                 { 7, ecw2cw(aCWmin), ecw2cw(aCWmax), 0 };
 173         const struct hostapd_tx_queue_params txq_be =
 174                 { 3, ecw2cw(aCWmin), 4 * (ecw2cw(aCWmin) + 1) - 1, 0};
 175         const struct hostapd_tx_queue_params txq_vi =
 176                 { 1, (ecw2cw(aCWmin) + 1) / 2 - 1, ecw2cw(aCWmin), 30};
 177         const struct hostapd_tx_queue_params txq_vo =
 178                 { 1, (ecw2cw(aCWmin) + 1) / 4 - 1,
 179                   (ecw2cw(aCWmin) + 1) / 2 - 1, 15};
 180
 181 #undef ecw2cw
 182
 183         conf = os_zalloc(sizeof(*conf));
 184         bss = os_zalloc(sizeof(*bss));
 185         if (conf == NULL || bss == NULL) {
 186                 wpa_printf(MSG_ERROR, "Failed to allocate memory for "
 187                            "configuration data.");
 188                 os_free(conf);
 189                 os_free(bss);
 190                 return NULL;
 191         }
 192         conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *));
 193         if (conf->bss == NULL) {
 194                 os_free(conf);
 195                 os_free(bss);
 196                 return NULL;
 197         }
 198         conf->bss[0] = bss;
 199
 200         bss->radius = os_zalloc(sizeof(*bss->radius));
 201         if (bss->radius == NULL) {
 202                 os_free(conf->bss);
 203                 os_free(conf);
 204                 os_free(bss);
 205                 return NULL;
 206         }
 207
 208         hostapd_config_defaults_bss(bss);
 209
 210         conf->num_bss = 1;
 211
 212         conf->beacon_int = 100;
 213         conf->rts_threshold = -2; /* use driver default: 2347 */
 214         conf->fragm_threshold = -2; /* user driver default: 2346 */
 215         /* Set to invalid value means do not add Power Constraint IE */
 216         conf->local_pwr_constraint = -1;
 217
 218         conf->wmm_ac_params[0] = ac_be;
 219         conf->wmm_ac_params[1] = ac_bk;
 220         conf->wmm_ac_params[2] = ac_vi;
 221         conf->wmm_ac_params[3] = ac_vo;
 222
 223         conf->tx_queue[0] = txq_vo;
 224         conf->tx_queue[1] = txq_vi;
 225         conf->tx_queue[2] = txq_be;
 226         conf->tx_queue[3] = txq_bk;
 227
 228         conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
 229
 230         conf->ap_table_max_size = 255;
 231         conf->ap_table_expiration_time = 60;
 232         conf->track_sta_max_age = 180;
 233
 234 #ifdef CONFIG_TESTING_OPTIONS
 235         conf->ignore_probe_probability = 0.0;
 236         conf->ignore_auth_probability = 0.0;
 237         conf->ignore_assoc_probability = 0.0;
 238         conf->ignore_reassoc_probability = 0.0;
 239         conf->corrupt_gtk_rekey_mic_probability = 0.0;
 240         conf->ecsa_ie_only = 0;
 241 #endif /* CONFIG_TESTING_OPTIONS */
 242
 243         conf->acs = 0;
 244         conf->acs_ch_list.num = 0;
 245 #ifdef CONFIG_ACS
 246         conf->acs_num_scans = 5;
 247 #endif /* CONFIG_ACS */
 248
 249 #ifdef CONFIG_IEEE80211AX
 250         conf->he_op.he_rts_threshold = HE_OPERATION_RTS_THRESHOLD_MASK >>
 251                 HE_OPERATION_RTS_THRESHOLD_OFFSET;
 252         /* Set default basic MCS/NSS set to single stream MCS 0-7 */
 253         conf->he_op.he_basic_mcs_nss_set = 0xfffc;
 254 #endif /* CONFIG_IEEE80211AX */
 255
 256         /* The third octet of the country string uses an ASCII space character
 257          * by default to indicate that the regulations encompass all
 258          * environments for the current frequency band in the country. */
 259         conf->country[2] = ' ';
 260
 261         conf->rssi_reject_assoc_rssi = 0;
 262         conf->rssi_reject_assoc_timeout = 30;
 263
 264 #ifdef CONFIG_AIRTIME_POLICY
 265         conf->airtime_update_interval = AIRTIME_DEFAULT_UPDATE_INTERVAL;
 266 #endif /* CONFIG_AIRTIME_POLICY */
 267
 268         return conf;
 269 }
 270
 271
 272 int hostapd_mac_comp(const void *a, const void *b)
 273 {
 274         return os_memcmp(a, b, sizeof(macaddr));
 275 }
 276
 277
 278 static int hostapd_config_read_wpa_psk(const char *fname,
 279                                        struct hostapd_ssid *ssid)
 280 {
 281         FILE *f;
 282         char buf[128], *pos;
 283         const char *keyid;
 284         char *context;
 285         char *context2;
 286         char *token;
 287         char *name;
 288         char *value;
 289         int line = 0, ret = 0, len, ok;
 290         u8 addr[ETH_ALEN];
 291         struct hostapd_wpa_psk *psk;
 292
 293         if (!fname)
 294                 return 0;
 295
 296         f = fopen(fname, "r");
 297         if (!f) {
 298                 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname);
 299                 return -1;
 300         }
 301
 302         while (fgets(buf, sizeof(buf), f)) {
 303                 int vlan_id = 0;
 304                 int wps = 0;
 305
 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                 context = NULL;
 322                 keyid = NULL;
 323                 while ((token = str_token(buf, " ", &context))) {
 324                         if (!os_strchr(token, '='))
 325                                 break;
 326                         context2 = NULL;
 327                         name = str_token(token, "=", &context2);
 328                         if (!name)
 329                                 break;
 330                         value = str_token(token, "", &context2);
 331                         if (!value)
 332                                 value = "";
 333                         if (!os_strcmp(name, "keyid")) {
 334                                 keyid = value;
 335                         } else if (!os_strcmp(name, "wps")) {
 336                                 wps = atoi(value);
 337                         } else if (!os_strcmp(name, "vlanid")) {
 338                                 vlan_id = atoi(value);
 339                         } else {
 340                                 wpa_printf(MSG_ERROR,
 341                                            "Unrecognized '%s=%s' on line %d in '%s'",
 342                                            name, value, line, fname);
 343                                 ret = -1;
 344                                 break;
 345                         }
 346                 }
 347
 348                 if (ret == -1)
 349                         break;
 350
 351                 if (!token)
 352                         token = "";
 353                 if (hwaddr_aton(token, addr)) {
 354                         wpa_printf(MSG_ERROR,
 355                                    "Invalid MAC address '%s' on line %d in '%s'",
 356                                    token, line, fname);
 357                         ret = -1;
 358                         break;
 359                 }
 360
 361                 psk = os_zalloc(sizeof(*psk));
 362                 if (psk == NULL) {
 363                         wpa_printf(MSG_ERROR, "WPA PSK allocation failed");
 364                         ret = -1;
 365                         break;
 366                 }
 367                 psk->vlan_id = vlan_id;
 368                 if (is_zero_ether_addr(addr))
 369                         psk->group = 1;
 370                 else
 371                         os_memcpy(psk->addr, addr, ETH_ALEN);
 372
 373                 pos = str_token(buf, "", &context);
 374                 if (!pos) {
 375                         wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'",
 376                                    line, fname);
 377                         os_free(psk);
 378                         ret = -1;
 379                         break;
 380                 }
 381
 382                 ok = 0;
 383                 len = os_strlen(pos);
 384                 if (len == 2 * PMK_LEN &&
 385                     hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
 386                         ok = 1;
 387                 else if (len >= 8 && len < 64 &&
 388                          pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
 389                                      4096, psk->psk, PMK_LEN) == 0)
 390                         ok = 1;
 391                 if (!ok) {
 392                         wpa_printf(MSG_ERROR,
 393                                    "Invalid PSK '%s' on line %d in '%s'",
 394                                    pos, line, fname);
 395                         os_free(psk);
 396                         ret = -1;
 397                         break;
 398                 }
 399
 400                 if (keyid) {
 401                         len = os_strlcpy(psk->keyid, keyid, sizeof(psk->keyid));
 402                         if ((size_t) len >= sizeof(psk->keyid)) {
 403                                 wpa_printf(MSG_ERROR,
 404                                            "PSK keyid too long on line %d in '%s'",
 405                                            line, fname);
 406                                 os_free(psk);
 407                                 ret = -1;
 408                                 break;
 409                         }
 410                 }
 411
 412                 psk->wps = wps;
 413
 414                 psk->next = ssid->wpa_psk;
 415                 ssid->wpa_psk = psk;
 416         }
 417
 418         fclose(f);
 419
 420         return ret;
 421 }
 422
 423
 424 static int hostapd_derive_psk(struct hostapd_ssid *ssid)
 425 {
 426         ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 427         if (ssid->wpa_psk == NULL) {
 428                 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK");
 429                 return -1;
 430         }
 431         wpa_hexdump_ascii(MSG_DEBUG, "SSID",
 432                           (u8 *) ssid->ssid, ssid->ssid_len);
 433         wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)",
 434                               (u8 *) ssid->wpa_passphrase,
 435                               os_strlen(ssid->wpa_passphrase));
 436         pbkdf2_sha1(ssid->wpa_passphrase,
 437                     ssid->ssid, ssid->ssid_len,
 438                     4096, ssid->wpa_psk->psk, PMK_LEN);
 439         wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)",
 440                         ssid->wpa_psk->psk, PMK_LEN);
 441         return 0;
 442 }
 443
 444
 445 int hostapd_setup_sae_pt(struct hostapd_bss_config *conf)
 446 {
 447 #ifdef CONFIG_SAE
 448         struct hostapd_ssid *ssid = &conf->ssid;
 449         struct sae_password_entry *pw;
 450
 451         if ((conf->sae_pwe == 0 && !hostapd_sae_pw_id_in_use(conf)) ||
 452             conf->sae_pwe == 3 ||
 453             !wpa_key_mgmt_sae(conf->wpa_key_mgmt))
 454                 return 0; /* PT not needed */
 455
 456         sae_deinit_pt(ssid->pt);
 457         ssid->pt = NULL;
 458         if (ssid->wpa_passphrase) {
 459                 ssid->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
 460                                          ssid->ssid_len,
 461                                          (const u8 *) ssid->wpa_passphrase,
 462                                          os_strlen(ssid->wpa_passphrase),
 463                                          NULL);
 464                 if (!ssid->pt)
 465                         return -1;
 466         }
 467
 468         for (pw = conf->sae_passwords; pw; pw = pw->next) {
 469                 sae_deinit_pt(pw->pt);
 470                 pw->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
 471                                        ssid->ssid_len,
 472                                        (const u8 *) pw->password,
 473                                        os_strlen(pw->password),
 474                                        pw->identifier);
 475                 if (!pw->pt)
 476                         return -1;
 477         }
 478 #endif /* CONFIG_SAE */
 479
 480         return 0;
 481 }
 482
 483
 484 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
 485 {
 486         struct hostapd_ssid *ssid = &conf->ssid;
 487
 488         if (hostapd_setup_sae_pt(conf) < 0)
 489                 return -1;
 490
 491         if (ssid->wpa_passphrase != NULL) {
 492                 if (ssid->wpa_psk != NULL) {
 493                         wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
 494                                    "instead of passphrase");
 495                 } else {
 496                         wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on "
 497                                    "passphrase");
 498                         if (hostapd_derive_psk(ssid) < 0)
 499                                 return -1;
 500                 }
 501                 ssid->wpa_psk->group = 1;
 502         }
 503
 504         return hostapd_config_read_wpa_psk(ssid->wpa_psk_file, &conf->ssid);
 505 }
 506
 507
 508 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
 509                                        int num_servers)
 510 {
 511         int i;
 512
 513         for (i = 0; i < num_servers; i++) {
 514                 os_free(servers[i].shared_secret);
 515         }
 516         os_free(servers);
 517 }
 518
 519
 520 struct hostapd_radius_attr *
 521 hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type)
 522 {
 523         for (; attr; attr = attr->next) {
 524                 if (attr->type == type)
 525                         return attr;
 526         }
 527         return NULL;
 528 }
 529
 530
 531 struct hostapd_radius_attr * hostapd_parse_radius_attr(const char *value)
 532 {
 533         const char *pos;
 534         char syntax;
 535         struct hostapd_radius_attr *attr;
 536         size_t len;
 537
 538         attr = os_zalloc(sizeof(*attr));
 539         if (!attr)
 540                 return NULL;
 541
 542         attr->type = atoi(value);
 543
 544         pos = os_strchr(value, ':');
 545         if (!pos) {
 546                 attr->val = wpabuf_alloc(1);
 547                 if (!attr->val) {
 548                         os_free(attr);
 549                         return NULL;
 550                 }
 551                 wpabuf_put_u8(attr->val, 0);
 552                 return attr;
 553         }
 554
 555         pos++;
 556         if (pos[0] == '\0' || pos[1] != ':') {
 557                 os_free(attr);
 558                 return NULL;
 559         }
 560         syntax = *pos++;
 561         pos++;
 562
 563         switch (syntax) {
 564         case 's':
 565                 attr->val = wpabuf_alloc_copy(pos, os_strlen(pos));
 566                 break;
 567         case 'x':
 568                 len = os_strlen(pos);
 569                 if (len & 1)
 570                         break;
 571                 len /= 2;
 572                 attr->val = wpabuf_alloc(len);
 573                 if (!attr->val)
 574                         break;
 575                 if (hexstr2bin(pos, wpabuf_put(attr->val, len), len) < 0) {
 576                         wpabuf_free(attr->val);
 577                         os_free(attr);
 578                         return NULL;
 579                 }
 580                 break;
 581         case 'd':
 582                 attr->val = wpabuf_alloc(4);
 583                 if (attr->val)
 584                         wpabuf_put_be32(attr->val, atoi(pos));
 585                 break;
 586         default:
 587                 os_free(attr);
 588                 return NULL;
 589         }
 590
 591         if (!attr->val) {
 592                 os_free(attr);
 593                 return NULL;
 594         }
 595
 596         return attr;
 597 }
 598
 599
 600 void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr)
 601 {
 602         struct hostapd_radius_attr *prev;
 603
 604         while (attr) {
 605                 prev = attr;
 606                 attr = attr->next;
 607                 wpabuf_free(prev->val);
 608                 os_free(prev);
 609         }
 610 }
 611
 612
 613 void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
 614 {
 615         hostapd_config_free_radius_attr(user->accept_attr);
 616         os_free(user->identity);
 617         bin_clear_free(user->password, user->password_len);
 618         bin_clear_free(user->salt, user->salt_len);
 619         os_free(user);
 620 }
 621
 622
 623 void hostapd_config_free_eap_users(struct hostapd_eap_user *user)
 624 {
 625         struct hostapd_eap_user *prev_user;
 626
 627         while (user) {
 628                 prev_user = user;
 629                 user = user->next;
 630                 hostapd_config_free_eap_user(prev_user);
 631         }
 632 }
 633
 634
 635 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
 636 {
 637         int i;
 638         for (i = 0; i < NUM_WEP_KEYS; i++) {
 639                 bin_clear_free(keys->key[i], keys->len[i]);
 640                 keys->key[i] = NULL;
 641         }
 642 }
 643
 644
 645 void hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk **l)
 646 {
 647         struct hostapd_wpa_psk *psk, *tmp;
 648
 649         for (psk = *l; psk;) {
 650                 tmp = psk;
 651                 psk = psk->next;
 652                 bin_clear_free(tmp, sizeof(*tmp));
 653         }
 654         *l = NULL;
 655 }
 656
 657
 658 static void hostapd_config_free_anqp_elem(struct hostapd_bss_config *conf)
 659 {
 660         struct anqp_element *elem;
 661
 662         while ((elem = dl_list_first(&conf->anqp_elem, struct anqp_element,
 663                                      list))) {
 664                 dl_list_del(&elem->list);
 665                 wpabuf_free(elem->payload);
 666                 os_free(elem);
 667         }
 668 }
 669
 670
 671 static void hostapd_config_free_fils_realms(struct hostapd_bss_config *conf)
 672 {
 673 #ifdef CONFIG_FILS
 674         struct fils_realm *realm;
 675
 676         while ((realm = dl_list_first(&conf->fils_realms, struct fils_realm,
 677                                       list))) {
 678                 dl_list_del(&realm->list);
 679                 os_free(realm);
 680         }
 681 #endif /* CONFIG_FILS */
 682 }
 683
 684
 685 static void hostapd_config_free_sae_passwords(struct hostapd_bss_config *conf)
 686 {
 687         struct sae_password_entry *pw, *tmp;
 688
 689         pw = conf->sae_passwords;
 690         conf->sae_passwords = NULL;
 691         while (pw) {
 692                 tmp = pw;
 693                 pw = pw->next;
 694                 str_clear_free(tmp->password);
 695                 os_free(tmp->identifier);
 696 #ifdef CONFIG_SAE
 697                 sae_deinit_pt(tmp->pt);
 698 #endif /* CONFIG_SAE */
 699                 os_free(tmp);
 700         }
 701 }
 702
 703
 704 #ifdef CONFIG_DPP2
 705 static void hostapd_dpp_controller_conf_free(struct dpp_controller_conf *conf)
 706 {
 707         struct dpp_controller_conf *prev;
 708
 709         while (conf) {
 710                 prev = conf;
 711                 conf = conf->next;
 712                 os_free(prev);
 713         }
 714 }
 715 #endif /* CONFIG_DPP2 */
 716
 717
 718 void hostapd_config_free_bss(struct hostapd_bss_config *conf)
 719 {
 720 #if defined(CONFIG_WPS) || defined(CONFIG_HS20)
 721         size_t i;
 722 #endif
 723
 724         if (conf == NULL)
 725                 return;
 726
 727         hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);
 728
 729         str_clear_free(conf->ssid.wpa_passphrase);
 730         os_free(conf->ssid.wpa_psk_file);
 731         hostapd_config_free_wep(&conf->ssid.wep);
 732 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 733         os_free(conf->ssid.vlan_tagged_interface);
 734 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 735 #ifdef CONFIG_SAE
 736         sae_deinit_pt(conf->ssid.pt);
 737 #endif /* CONFIG_SAE */
 738
 739         hostapd_config_free_eap_users(conf->eap_user);
 740         os_free(conf->eap_user_sqlite);
 741
 742         os_free(conf->eap_req_id_text);
 743         os_free(conf->erp_domain);
 744         os_free(conf->accept_mac);
 745         os_free(conf->deny_mac);
 746         os_free(conf->nas_identifier);
 747         if (conf->radius) {
 748                 hostapd_config_free_radius(conf->radius->auth_servers,
 749                                            conf->radius->num_auth_servers);
 750                 hostapd_config_free_radius(conf->radius->acct_servers,
 751                                            conf->radius->num_acct_servers);
 752         }
 753         hostapd_config_free_radius_attr(conf->radius_auth_req_attr);
 754         hostapd_config_free_radius_attr(conf->radius_acct_req_attr);
 755         os_free(conf->radius_req_attr_sqlite);
 756         os_free(conf->rsn_preauth_interfaces);
 757         os_free(conf->ctrl_interface);
 758         os_free(conf->ca_cert);
 759         os_free(conf->server_cert);
 760         os_free(conf->server_cert2);
 761         os_free(conf->private_key);
 762         os_free(conf->private_key2);
 763         os_free(conf->private_key_passwd);
 764         os_free(conf->private_key_passwd2);
 765         os_free(conf->check_cert_subject);
 766         os_free(conf->ocsp_stapling_response);
 767         os_free(conf->ocsp_stapling_response_multi);
 768         os_free(conf->dh_file);
 769         os_free(conf->openssl_ciphers);
 770         os_free(conf->openssl_ecdh_curves);
 771         os_free(conf->pac_opaque_encr_key);
 772         os_free(conf->eap_fast_a_id);
 773         os_free(conf->eap_fast_a_id_info);
 774         os_free(conf->eap_sim_db);
 775         os_free(conf->radius_server_clients);
 776         os_free(conf->radius);
 777         os_free(conf->radius_das_shared_secret);
 778         hostapd_config_free_vlan(conf);
 779         os_free(conf->time_zone);
 780
 781 #ifdef CONFIG_IEEE80211R_AP
 782         {
 783                 struct ft_remote_r0kh *r0kh, *r0kh_prev;
 784                 struct ft_remote_r1kh *r1kh, *r1kh_prev;
 785
 786                 r0kh = conf->r0kh_list;
 787                 conf->r0kh_list = NULL;
 788                 while (r0kh) {
 789                         r0kh_prev = r0kh;
 790                         r0kh = r0kh->next;
 791                         os_free(r0kh_prev);
 792                 }
 793
 794                 r1kh = conf->r1kh_list;
 795                 conf->r1kh_list = NULL;
 796                 while (r1kh) {
 797                         r1kh_prev = r1kh;
 798                         r1kh = r1kh->next;
 799                         os_free(r1kh_prev);
 800                 }
 801         }
 802 #endif /* CONFIG_IEEE80211R_AP */
 803
 804 #ifdef CONFIG_WPS
 805         os_free(conf->wps_pin_requests);
 806         os_free(conf->device_name);
 807         os_free(conf->manufacturer);
 808         os_free(conf->model_name);
 809         os_free(conf->model_number);
 810         os_free(conf->serial_number);
 811         os_free(conf->config_methods);
 812         os_free(conf->ap_pin);
 813         os_free(conf->extra_cred);
 814         os_free(conf->ap_settings);
 815         hostapd_config_clear_wpa_psk(&conf->multi_ap_backhaul_ssid.wpa_psk);
 816         str_clear_free(conf->multi_ap_backhaul_ssid.wpa_passphrase);
 817         os_free(conf->upnp_iface);
 818         os_free(conf->friendly_name);
 819         os_free(conf->manufacturer_url);
 820         os_free(conf->model_description);
 821         os_free(conf->model_url);
 822         os_free(conf->upc);
 823         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
 824                 wpabuf_free(conf->wps_vendor_ext[i]);
 825         wpabuf_free(conf->wps_application_ext);
 826         wpabuf_free(conf->wps_nfc_dh_pubkey);
 827         wpabuf_free(conf->wps_nfc_dh_privkey);
 828         wpabuf_free(conf->wps_nfc_dev_pw);
 829 #endif /* CONFIG_WPS */
 830
 831         os_free(conf->roaming_consortium);
 832         os_free(conf->venue_name);
 833         os_free(conf->venue_url);
 834         os_free(conf->nai_realm_data);
 835         os_free(conf->network_auth_type);
 836         os_free(conf->anqp_3gpp_cell_net);
 837         os_free(conf->domain_name);
 838         hostapd_config_free_anqp_elem(conf);
 839
 840 #ifdef CONFIG_RADIUS_TEST
 841         os_free(conf->dump_msk_file);
 842 #endif /* CONFIG_RADIUS_TEST */
 843
 844 #ifdef CONFIG_HS20
 845         os_free(conf->hs20_oper_friendly_name);
 846         os_free(conf->hs20_wan_metrics);
 847         os_free(conf->hs20_connection_capability);
 848         os_free(conf->hs20_operating_class);
 849         os_free(conf->hs20_icons);
 850         if (conf->hs20_osu_providers) {
 851                 for (i = 0; i < conf->hs20_osu_providers_count; i++) {
 852                         struct hs20_osu_provider *p;
 853                         size_t j;
 854                         p = &conf->hs20_osu_providers[i];
 855                         os_free(p->friendly_name);
 856                         os_free(p->server_uri);
 857                         os_free(p->method_list);
 858                         for (j = 0; j < p->icons_count; j++)
 859                                 os_free(p->icons[j]);
 860                         os_free(p->icons);
 861                         os_free(p->osu_nai);
 862                         os_free(p->osu_nai2);
 863                         os_free(p->service_desc);
 864                 }
 865                 os_free(conf->hs20_osu_providers);
 866         }
 867         if (conf->hs20_operator_icon) {
 868                 for (i = 0; i < conf->hs20_operator_icon_count; i++)
 869                         os_free(conf->hs20_operator_icon[i]);
 870                 os_free(conf->hs20_operator_icon);
 871         }
 872         os_free(conf->subscr_remediation_url);
 873         os_free(conf->hs20_sim_provisioning_url);
 874         os_free(conf->t_c_filename);
 875         os_free(conf->t_c_server_url);
 876 #endif /* CONFIG_HS20 */
 877
 878         wpabuf_free(conf->vendor_elements);
 879         wpabuf_free(conf->assocresp_elements);
 880
 881         os_free(conf->sae_groups);
 882 #ifdef CONFIG_OWE
 883         os_free(conf->owe_groups);
 884 #endif /* CONFIG_OWE */
 885
 886         os_free(conf->wowlan_triggers);
 887
 888         os_free(conf->server_id);
 889
 890 #ifdef CONFIG_TESTING_OPTIONS
 891         wpabuf_free(conf->own_ie_override);
 892         wpabuf_free(conf->sae_commit_override);
 893         wpabuf_free(conf->rsnxe_override_eapol);
 894         wpabuf_free(conf->gtk_rsc_override);
 895         wpabuf_free(conf->igtk_rsc_override);
 896 #endif /* CONFIG_TESTING_OPTIONS */
 897
 898         os_free(conf->no_probe_resp_if_seen_on);
 899         os_free(conf->no_auth_if_seen_on);
 900
 901         hostapd_config_free_fils_realms(conf);
 902
 903 #ifdef CONFIG_DPP
 904         os_free(conf->dpp_name);
 905         os_free(conf->dpp_mud_url);
 906         os_free(conf->dpp_connector);
 907         wpabuf_free(conf->dpp_netaccesskey);
 908         wpabuf_free(conf->dpp_csign);
 909 #ifdef CONFIG_DPP2
 910         hostapd_dpp_controller_conf_free(conf->dpp_controller);
 911 #endif /* CONFIG_DPP2 */
 912 #endif /* CONFIG_DPP */
 913
 914         hostapd_config_free_sae_passwords(conf);
 915
 916 #ifdef CONFIG_AIRTIME_POLICY
 917         {
 918                 struct airtime_sta_weight *wt, *wt_prev;
 919
 920                 wt = conf->airtime_weight_list;
 921                 conf->airtime_weight_list = NULL;
 922                 while (wt) {
 923                         wt_prev = wt;
 924                         wt = wt->next;
 925                         os_free(wt_prev);
 926                 }
 927         }
 928 #endif /* CONFIG_AIRTIME_POLICY */
 929
 930         os_free(conf);
 931 }
 932
 933
 934 /**
 935  * hostapd_config_free - Free hostapd configuration
 936  * @conf: Configuration data from hostapd_config_read().
 937  */
 938 void hostapd_config_free(struct hostapd_config *conf)
 939 {
 940         size_t i;
 941
 942         if (conf == NULL)
 943                 return;
 944
 945         for (i = 0; i < conf->num_bss; i++)
 946                 hostapd_config_free_bss(conf->bss[i]);
 947         os_free(conf->bss);
 948         os_free(conf->supported_rates);
 949         os_free(conf->basic_rates);
 950         os_free(conf->acs_ch_list.range);
 951         os_free(conf->acs_freq_list.range);
 952         os_free(conf->driver_params);
 953 #ifdef CONFIG_ACS
 954         os_free(conf->acs_chan_bias);
 955 #endif /* CONFIG_ACS */
 956         wpabuf_free(conf->lci);
 957         wpabuf_free(conf->civic);
 958
 959         os_free(conf);
 960 }
 961
 962
 963 /**
 964  * hostapd_maclist_found - Find a MAC address from a list
 965  * @list: MAC address list
 966  * @num_entries: Number of addresses in the list
 967  * @addr: Address to search for
 968  * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed
 969  * Returns: 1 if address is in the list or 0 if not.
 970  *
 971  * Perform a binary search for given MAC address from a pre-sorted list.
 972  */
 973 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
 974                           const u8 *addr, struct vlan_description *vlan_id)
 975 {
 976         int start, end, middle, res;
 977
 978         start = 0;
 979         end = num_entries - 1;
 980
 981         while (start <= end) {
 982                 middle = (start + end) / 2;
 983                 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
 984                 if (res == 0) {
 985                         if (vlan_id)
 986                                 *vlan_id = list[middle].vlan_id;
 987                         return 1;
 988                 }
 989                 if (res < 0)
 990                         start = middle + 1;
 991                 else
 992                         end = middle - 1;
 993         }
 994
 995         return 0;
 996 }
 997
 998
 999 int hostapd_rate_found(int *list, int rate)
1000 {
1001         int i;
1002
1003         if (list == NULL)
1004                 return 0;
1005
1006         for (i = 0; list[i] >= 0; i++)
1007                 if (list[i] == rate)
1008                         return 1;
1009
1010         return 0;
1011 }
1012
1013
1014 int hostapd_vlan_valid(struct hostapd_vlan *vlan,
1015                        struct vlan_description *vlan_desc)
1016 {
1017         struct hostapd_vlan *v = vlan;
1018         int i;
1019
1020         if (!vlan_desc->notempty || vlan_desc->untagged < 0 ||
1021             vlan_desc->untagged > MAX_VLAN_ID)
1022                 return 0;
1023         for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) {
1024                 if (vlan_desc->tagged[i] < 0 ||
1025                     vlan_desc->tagged[i] > MAX_VLAN_ID)
1026                         return 0;
1027         }
1028         if (!vlan_desc->untagged && !vlan_desc->tagged[0])
1029                 return 0;
1030
1031         while (v) {
1032                 if (!vlan_compare(&v->vlan_desc, vlan_desc) ||
1033                     v->vlan_id == VLAN_ID_WILDCARD)
1034                         return 1;
1035                 v = v->next;
1036         }
1037         return 0;
1038 }
1039
1040
1041 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
1042 {
1043         struct hostapd_vlan *v = vlan;
1044         while (v) {
1045                 if (v->vlan_id == vlan_id)
1046                         return v->ifname;
1047                 v = v->next;
1048         }
1049         return NULL;
1050 }
1051
1052
1053 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
1054                            const u8 *addr, const u8 *p2p_dev_addr,
1055                            const u8 *prev_psk, int *vlan_id)
1056 {
1057         struct hostapd_wpa_psk *psk;
1058         int next_ok = prev_psk == NULL;
1059
1060         if (vlan_id)
1061                 *vlan_id = 0;
1062
1063         if (p2p_dev_addr && !is_zero_ether_addr(p2p_dev_addr)) {
1064                 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1065                            " p2p_dev_addr=" MACSTR " prev_psk=%p",
1066                            MAC2STR(addr), MAC2STR(p2p_dev_addr), prev_psk);
1067                 addr = NULL; /* Use P2P Device Address for matching */
1068         } else {
1069                 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1070                            " prev_psk=%p",
1071                            MAC2STR(addr), prev_psk);
1072         }
1073
1074         for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
1075                 if (next_ok &&
1076                     (psk->group ||
1077                      (addr && os_memcmp(psk->addr, addr, ETH_ALEN) == 0) ||
1078                      (!addr && p2p_dev_addr &&
1079                       os_memcmp(psk->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) ==
1080                       0))) {
1081                         if (vlan_id)
1082                                 *vlan_id = psk->vlan_id;
1083                         return psk->psk;
1084                 }
1085
1086                 if (psk->psk == prev_psk)
1087                         next_ok = 1;
1088         }
1089
1090         return NULL;
1091 }
1092
1093
1094 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
1095                                     struct hostapd_config *conf,
1096                                     int full_config)
1097 {
1098         if (full_config && bss->ieee802_1x && !bss->eap_server &&
1099             !bss->radius->auth_servers) {
1100                 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
1101                            "EAP authenticator configured).");
1102                 return -1;
1103         }
1104
1105         if (bss->wpa) {
1106                 int wep, i;
1107
1108                 wep = bss->default_wep_key_len > 0 ||
1109                        bss->individual_wep_key_len > 0;
1110                 for (i = 0; i < NUM_WEP_KEYS; i++) {
1111                         if (bss->ssid.wep.keys_set) {
1112                                 wep = 1;
1113                                 break;
1114                         }
1115                 }
1116
1117                 if (wep) {
1118                         wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported");
1119                         return -1;
1120                 }
1121         }
1122
1123         if (full_config && bss->wpa &&
1124             bss->wpa_psk_radius != PSK_RADIUS_IGNORED &&
1125             bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
1126                 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no "
1127                            "RADIUS checking (macaddr_acl=2) enabled.");
1128                 return -1;
1129         }
1130
1131         if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
1132             bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
1133             bss->ssid.wpa_psk_file == NULL &&
1134             (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED ||
1135              bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) {
1136                 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
1137                            "is not configured.");
1138                 return -1;
1139         }
1140
1141         if (full_config && !is_zero_ether_addr(bss->bssid)) {
1142                 size_t i;
1143
1144                 for (i = 0; i < conf->num_bss; i++) {
1145                         if (conf->bss[i] != bss &&
1146                             (hostapd_mac_comp(conf->bss[i]->bssid,
1147                                               bss->bssid) == 0)) {
1148                                 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
1149                                            " on interface '%s' and '%s'.",
1150                                            MAC2STR(bss->bssid),
1151                                            conf->bss[i]->iface, bss->iface);
1152                                 return -1;
1153                         }
1154                 }
1155         }
1156
1157 #ifdef CONFIG_IEEE80211R_AP
1158         if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) &&
1159             (bss->nas_identifier == NULL ||
1160              os_strlen(bss->nas_identifier) < 1 ||
1161              os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
1162                 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
1163                            "nas_identifier to be configured as a 1..48 octet "
1164                            "string");
1165                 return -1;
1166         }
1167 #endif /* CONFIG_IEEE80211R_AP */
1168
1169 #ifdef CONFIG_IEEE80211N
1170         if (full_config && conf->ieee80211n &&
1171             conf->hw_mode == HOSTAPD_MODE_IEEE80211B) {
1172                 bss->disable_11n = 1;
1173                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not "
1174                            "allowed, disabling HT capabilities");
1175         }
1176
1177         if (full_config && conf->ieee80211n &&
1178             bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1179                 bss->disable_11n = 1;
1180                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not "
1181                            "allowed, disabling HT capabilities");
1182         }
1183
1184         if (full_config && conf->ieee80211n && bss->wpa &&
1185             !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1186             !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1187                                    WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1188         {
1189                 bss->disable_11n = 1;
1190                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
1191                            "requires CCMP/GCMP to be enabled, disabling HT "
1192                            "capabilities");
1193         }
1194 #endif /* CONFIG_IEEE80211N */
1195
1196 #ifdef CONFIG_IEEE80211AC
1197         if (full_config && conf->ieee80211ac &&
1198             bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1199                 bss->disable_11ac = 1;
1200                 wpa_printf(MSG_ERROR,
1201                            "VHT (IEEE 802.11ac) with WEP is not allowed, disabling VHT capabilities");
1202         }
1203
1204         if (full_config && conf->ieee80211ac && bss->wpa &&
1205             !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1206             !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1207                                    WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1208         {
1209                 bss->disable_11ac = 1;
1210                 wpa_printf(MSG_ERROR,
1211                            "VHT (IEEE 802.11ac) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling VHT capabilities");
1212         }
1213 #endif /* CONFIG_IEEE80211AC */
1214
1215 #ifdef CONFIG_WPS
1216         if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) {
1217                 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
1218                            "configuration forced WPS to be disabled");
1219                 bss->wps_state = 0;
1220         }
1221
1222         if (full_config && bss->wps_state &&
1223             bss->ssid.wep.keys_set && bss->wpa == 0) {
1224                 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
1225                            "disabled");
1226                 bss->wps_state = 0;
1227         }
1228
1229         if (full_config && bss->wps_state && bss->wpa &&
1230             (!(bss->wpa & 2) ||
1231              !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1232                                     WPA_CIPHER_CCMP_256 |
1233                                     WPA_CIPHER_GCMP_256)))) {
1234                 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without "
1235                            "WPA2/CCMP/GCMP forced WPS to be disabled");
1236                 bss->wps_state = 0;
1237         }
1238 #endif /* CONFIG_WPS */
1239
1240 #ifdef CONFIG_HS20
1241         if (full_config && bss->hs20 &&
1242             (!(bss->wpa & 2) ||
1243              !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1244                                     WPA_CIPHER_CCMP_256 |
1245                                     WPA_CIPHER_GCMP_256)))) {
1246                 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP "
1247                            "configuration is required for Hotspot 2.0 "
1248                            "functionality");
1249                 return -1;
1250         }
1251 #endif /* CONFIG_HS20 */
1252
1253 #ifdef CONFIG_MBO
1254         if (full_config && bss->mbo_enabled && (bss->wpa & 2) &&
1255             bss->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
1256                 wpa_printf(MSG_ERROR,
1257                            "MBO: PMF needs to be enabled whenever using WPA2 with MBO");
1258                 return -1;
1259         }
1260 #endif /* CONFIG_MBO */
1261
1262 #ifdef CONFIG_OCV
1263         if (full_config && bss->ieee80211w == NO_MGMT_FRAME_PROTECTION &&
1264             bss->ocv) {
1265                 wpa_printf(MSG_ERROR,
1266                            "OCV: PMF needs to be enabled whenever using OCV");
1267                 return -1;
1268         }
1269 #endif /* CONFIG_OCV */
1270
1271         return 0;
1272 }
1273
1274
1275 static int hostapd_config_check_cw(struct hostapd_config *conf, int queue)
1276 {
1277         int tx_cwmin = conf->tx_queue[queue].cwmin;
1278         int tx_cwmax = conf->tx_queue[queue].cwmax;
1279         int ac_cwmin = conf->wmm_ac_params[queue].cwmin;
1280         int ac_cwmax = conf->wmm_ac_params[queue].cwmax;
1281
1282         if (tx_cwmin > tx_cwmax) {
1283                 wpa_printf(MSG_ERROR,
1284                            "Invalid TX queue cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1285                            tx_cwmin, tx_cwmax);
1286                 return -1;
1287         }
1288         if (ac_cwmin > ac_cwmax) {
1289                 wpa_printf(MSG_ERROR,
1290                            "Invalid WMM AC cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1291                            ac_cwmin, ac_cwmax);
1292                 return -1;
1293         }
1294         return 0;
1295 }
1296
1297
1298 int hostapd_config_check(struct hostapd_config *conf, int full_config)
1299 {
1300         size_t i;
1301
1302         if (full_config && conf->ieee80211d &&
1303             (!conf->country[0] || !conf->country[1])) {
1304                 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
1305                            "setting the country_code");
1306                 return -1;
1307         }
1308
1309         if (full_config && conf->ieee80211h && !conf->ieee80211d) {
1310                 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without "
1311                            "IEEE 802.11d enabled");
1312                 return -1;
1313         }
1314
1315         if (full_config && conf->local_pwr_constraint != -1 &&
1316             !conf->ieee80211d) {
1317                 wpa_printf(MSG_ERROR, "Cannot add Power Constraint element without Country element");
1318                 return -1;
1319         }
1320
1321         if (full_config && conf->spectrum_mgmt_required &&
1322             conf->local_pwr_constraint == -1) {
1323                 wpa_printf(MSG_ERROR, "Cannot set Spectrum Management bit without Country and Power Constraint elements");
1324                 return -1;
1325         }
1326
1327 #ifdef CONFIG_AIRTIME_POLICY
1328         if (full_config && conf->airtime_mode > AIRTIME_MODE_STATIC &&
1329             !conf->airtime_update_interval) {
1330                 wpa_printf(MSG_ERROR, "Airtime update interval cannot be zero");
1331                 return -1;
1332         }
1333 #endif /* CONFIG_AIRTIME_POLICY */
1334         for (i = 0; i < NUM_TX_QUEUES; i++) {
1335                 if (hostapd_config_check_cw(conf, i))
1336                         return -1;
1337         }
1338
1339         for (i = 0; i < conf->num_bss; i++) {
1340                 if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
1341                         return -1;
1342         }
1343
1344         return 0;
1345 }
1346
1347
1348 void hostapd_set_security_params(struct hostapd_bss_config *bss,
1349                                  int full_config)
1350 {
1351         if (bss->individual_wep_key_len == 0) {
1352                 /* individual keys are not use; can use key idx0 for
1353                  * broadcast keys */
1354                 bss->broadcast_key_idx_min = 0;
1355         }
1356
1357         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
1358                 bss->rsn_pairwise = bss->wpa_pairwise;
1359         if (bss->group_cipher)
1360                 bss->wpa_group = bss->group_cipher;
1361         else
1362                 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
1363                                                             bss->wpa_pairwise,
1364                                                             bss->rsn_pairwise);
1365         if (!bss->wpa_group_rekey_set)
1366                 bss->wpa_group_rekey = bss->wpa_group == WPA_CIPHER_TKIP ?
1367                         600 : 86400;
1368
1369         if (full_config) {
1370                 bss->radius->auth_server = bss->radius->auth_servers;
1371                 bss->radius->acct_server = bss->radius->acct_servers;
1372         }
1373
1374         if (bss->wpa && bss->ieee802_1x) {
1375                 bss->ssid.security_policy = SECURITY_WPA;
1376         } else if (bss->wpa) {
1377                 bss->ssid.security_policy = SECURITY_WPA_PSK;
1378         } else if (bss->ieee802_1x) {
1379                 int cipher = WPA_CIPHER_NONE;
1380                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
1381                 bss->ssid.wep.default_len = bss->default_wep_key_len;
1382                 if (full_config && bss->default_wep_key_len) {
1383                         cipher = bss->default_wep_key_len >= 13 ?
1384                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
1385                 } else if (full_config && bss->ssid.wep.keys_set) {
1386                         if (bss->ssid.wep.len[0] >= 13)
1387                                 cipher = WPA_CIPHER_WEP104;
1388                         else
1389                                 cipher = WPA_CIPHER_WEP40;
1390                 }
1391                 bss->wpa_group = cipher;
1392                 bss->wpa_pairwise = cipher;
1393                 bss->rsn_pairwise = cipher;
1394                 if (full_config)
1395                         bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
1396         } else if (bss->ssid.wep.keys_set) {
1397                 int cipher = WPA_CIPHER_WEP40;
1398                 if (bss->ssid.wep.len[0] >= 13)
1399                         cipher = WPA_CIPHER_WEP104;
1400                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
1401                 bss->wpa_group = cipher;
1402                 bss->wpa_pairwise = cipher;
1403                 bss->rsn_pairwise = cipher;
1404                 if (full_config)
1405                         bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1406         } else if (bss->osen) {
1407                 bss->ssid.security_policy = SECURITY_OSEN;
1408                 bss->wpa_group = WPA_CIPHER_CCMP;
1409                 bss->wpa_pairwise = 0;
1410                 bss->rsn_pairwise = WPA_CIPHER_CCMP;
1411         } else {
1412                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
1413                 if (full_config) {
1414                         bss->wpa_group = WPA_CIPHER_NONE;
1415                         bss->wpa_pairwise = WPA_CIPHER_NONE;
1416                         bss->rsn_pairwise = WPA_CIPHER_NONE;
1417                         bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1418                 }
1419         }
1420 }
1421
1422
1423 int hostapd_sae_pw_id_in_use(struct hostapd_bss_config *conf)
1424 {
1425         int with_id = 0, without_id = 0;
1426         struct sae_password_entry *pw;
1427
1428         if (conf->ssid.wpa_passphrase)
1429                 without_id = 1;
1430
1431         for (pw = conf->sae_passwords; pw; pw = pw->next) {
1432                 if (pw->identifier)
1433                         with_id = 1;
1434                 else
1435                         without_id = 1;
1436                 if (with_id && without_id)
1437                         break;
1438         }
1439
1440         if (with_id && !without_id)
1441                 return 2;
1442         return with_id;
1443 }