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 #ifdef CONFIG_WEP
  58         bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
  59
  60         bss->wep_rekeying_period = 300;
  61         /* use key0 in individual key and key1 in broadcast key */
  62         bss->broadcast_key_idx_min = 1;
  63         bss->broadcast_key_idx_max = 2;
  64 #else /* CONFIG_WEP */
  65         bss->auth_algs = WPA_AUTH_ALG_OPEN;
  66 #endif /* CONFIG_WEP */
  67         bss->eap_reauth_period = 3600;
  68
  69         bss->wpa_group_rekey = 600;
  70         bss->wpa_gmk_rekey = 86400;
  71         bss->wpa_deny_ptk0_rekey = PTK0_REKEY_ALLOW_ALWAYS;
  72         bss->wpa_group_update_count = 4;
  73         bss->wpa_pairwise_update_count = 4;
  74         bss->wpa_disable_eapol_key_retries =
  75                 DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES;
  76         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
  77         bss->wpa_pairwise = WPA_CIPHER_TKIP;
  78         bss->wpa_group = WPA_CIPHER_TKIP;
  79         bss->rsn_pairwise = 0;
  80
  81         bss->max_num_sta = MAX_STA_COUNT;
  82
  83         bss->dtim_period = 2;
  84
  85         bss->radius_server_auth_port = 1812;
  86         bss->eap_sim_db_timeout = 1;
  87         bss->eap_sim_id = 3;
  88         bss->ap_max_inactivity = AP_MAX_INACTIVITY;
  89         bss->eapol_version = EAPOL_VERSION;
  90
  91         bss->max_listen_interval = 65535;
  92
  93         bss->pwd_group = 19; /* ECC: GF(p=256) */
  94
  95         bss->assoc_sa_query_max_timeout = 1000;
  96         bss->assoc_sa_query_retry_timeout = 201;
  97         bss->group_mgmt_cipher = WPA_CIPHER_AES_128_CMAC;
  98 #ifdef EAP_SERVER_FAST
  99          /* both anonymous and authenticated provisioning */
 100         bss->eap_fast_prov = 3;
 101         bss->pac_key_lifetime = 7 * 24 * 60 * 60;
 102         bss->pac_key_refresh_time = 1 * 24 * 60 * 60;
 103 #endif /* EAP_SERVER_FAST */
 104
 105         /* Set to -1 as defaults depends on HT in setup */
 106         bss->wmm_enabled = -1;
 107
 108 #ifdef CONFIG_IEEE80211R_AP
 109         bss->ft_over_ds = 1;
 110         bss->rkh_pos_timeout = 86400;
 111         bss->rkh_neg_timeout = 60;
 112         bss->rkh_pull_timeout = 1000;
 113         bss->rkh_pull_retries = 4;
 114         bss->r0_key_lifetime = 1209600;
 115 #endif /* CONFIG_IEEE80211R_AP */
 116
 117         bss->radius_das_time_window = 300;
 118
 119         bss->sae_anti_clogging_threshold = 5;
 120         bss->sae_sync = 5;
 121
 122         bss->gas_frag_limit = 1400;
 123
 124 #ifdef CONFIG_FILS
 125         dl_list_init(&bss->fils_realms);
 126         bss->fils_hlp_wait_time = 30;
 127         bss->dhcp_server_port = DHCP_SERVER_PORT;
 128         bss->dhcp_relay_port = DHCP_SERVER_PORT;
 129 #endif /* CONFIG_FILS */
 130
 131         bss->broadcast_deauth = 1;
 132
 133 #ifdef CONFIG_MBO
 134         bss->mbo_cell_data_conn_pref = -1;
 135 #endif /* CONFIG_MBO */
 136
 137         /* Disable TLS v1.3 by default for now to avoid interoperability issue.
 138          * This can be enabled by default once the implementation has been fully
 139          * completed and tested with other implementations. */
 140         bss->tls_flags = TLS_CONN_DISABLE_TLSv1_3;
 141
 142         bss->max_auth_rounds = 100;
 143         bss->max_auth_rounds_short = 50;
 144
 145         bss->send_probe_response = 1;
 146
 147 #ifdef CONFIG_HS20
 148         bss->hs20_release = (HS20_VERSION >> 4) + 1;
 149 #endif /* CONFIG_HS20 */
 150
 151 #ifdef CONFIG_MACSEC
 152         bss->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
 153         bss->macsec_port = 1;
 154 #endif /* CONFIG_MACSEC */
 155
 156         /* Default to strict CRL checking. */
 157         bss->check_crl_strict = 1;
 158 }
 159
 160
 161 struct hostapd_config * hostapd_config_defaults(void)
 162 {
 163 #define ecw2cw(ecw) ((1 << (ecw)) - 1)
 164
 165         struct hostapd_config *conf;
 166         struct hostapd_bss_config *bss;
 167         const int aCWmin = 4, aCWmax = 10;
 168         const struct hostapd_wmm_ac_params ac_bk =
 169                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
 170         const struct hostapd_wmm_ac_params ac_be =
 171                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
 172         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
 173                 { aCWmin - 1, aCWmin, 2, 3008 / 32, 0 };
 174         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
 175                 { aCWmin - 2, aCWmin - 1, 2, 1504 / 32, 0 };
 176         const struct hostapd_tx_queue_params txq_bk =
 177                 { 7, ecw2cw(aCWmin), ecw2cw(aCWmax), 0 };
 178         const struct hostapd_tx_queue_params txq_be =
 179                 { 3, ecw2cw(aCWmin), 4 * (ecw2cw(aCWmin) + 1) - 1, 0};
 180         const struct hostapd_tx_queue_params txq_vi =
 181                 { 1, (ecw2cw(aCWmin) + 1) / 2 - 1, ecw2cw(aCWmin), 30};
 182         const struct hostapd_tx_queue_params txq_vo =
 183                 { 1, (ecw2cw(aCWmin) + 1) / 4 - 1,
 184                   (ecw2cw(aCWmin) + 1) / 2 - 1, 15};
 185
 186 #undef ecw2cw
 187
 188         conf = os_zalloc(sizeof(*conf));
 189         bss = os_zalloc(sizeof(*bss));
 190         if (conf == NULL || bss == NULL) {
 191                 wpa_printf(MSG_ERROR, "Failed to allocate memory for "
 192                            "configuration data.");
 193                 os_free(conf);
 194                 os_free(bss);
 195                 return NULL;
 196         }
 197         conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *));
 198         if (conf->bss == NULL) {
 199                 os_free(conf);
 200                 os_free(bss);
 201                 return NULL;
 202         }
 203         conf->bss[0] = bss;
 204
 205         bss->radius = os_zalloc(sizeof(*bss->radius));
 206         if (bss->radius == NULL) {
 207                 os_free(conf->bss);
 208                 os_free(conf);
 209                 os_free(bss);
 210                 return NULL;
 211         }
 212
 213         hostapd_config_defaults_bss(bss);
 214
 215         conf->num_bss = 1;
 216
 217         conf->beacon_int = 100;
 218         conf->rts_threshold = -2; /* use driver default: 2347 */
 219         conf->fragm_threshold = -2; /* user driver default: 2346 */
 220         /* Set to invalid value means do not add Power Constraint IE */
 221         conf->local_pwr_constraint = -1;
 222
 223         conf->wmm_ac_params[0] = ac_be;
 224         conf->wmm_ac_params[1] = ac_bk;
 225         conf->wmm_ac_params[2] = ac_vi;
 226         conf->wmm_ac_params[3] = ac_vo;
 227
 228         conf->tx_queue[0] = txq_vo;
 229         conf->tx_queue[1] = txq_vi;
 230         conf->tx_queue[2] = txq_be;
 231         conf->tx_queue[3] = txq_bk;
 232
 233         conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
 234
 235         conf->ap_table_max_size = 255;
 236         conf->ap_table_expiration_time = 60;
 237         conf->track_sta_max_age = 180;
 238
 239 #ifdef CONFIG_TESTING_OPTIONS
 240         conf->ignore_probe_probability = 0.0;
 241         conf->ignore_auth_probability = 0.0;
 242         conf->ignore_assoc_probability = 0.0;
 243         conf->ignore_reassoc_probability = 0.0;
 244         conf->corrupt_gtk_rekey_mic_probability = 0.0;
 245         conf->ecsa_ie_only = 0;
 246 #endif /* CONFIG_TESTING_OPTIONS */
 247
 248         conf->acs = 0;
 249         conf->acs_ch_list.num = 0;
 250 #ifdef CONFIG_ACS
 251         conf->acs_num_scans = 5;
 252 #endif /* CONFIG_ACS */
 253
 254 #ifdef CONFIG_IEEE80211AX
 255         conf->he_op.he_rts_threshold = HE_OPERATION_RTS_THRESHOLD_MASK >>
 256                 HE_OPERATION_RTS_THRESHOLD_OFFSET;
 257         /* Set default basic MCS/NSS set to single stream MCS 0-7 */
 258         conf->he_op.he_basic_mcs_nss_set = 0xfffc;
 259         conf->he_op.he_bss_color_disabled = 1;
 260         conf->he_op.he_bss_color_partial = 0;
 261         conf->he_op.he_bss_color = 1;
 262 #endif /* CONFIG_IEEE80211AX */
 263
 264         /* The third octet of the country string uses an ASCII space character
 265          * by default to indicate that the regulations encompass all
 266          * environments for the current frequency band in the country. */
 267         conf->country[2] = ' ';
 268
 269         conf->rssi_reject_assoc_rssi = 0;
 270         conf->rssi_reject_assoc_timeout = 30;
 271
 272 #ifdef CONFIG_AIRTIME_POLICY
 273         conf->airtime_update_interval = AIRTIME_DEFAULT_UPDATE_INTERVAL;
 274 #endif /* CONFIG_AIRTIME_POLICY */
 275
 276         return conf;
 277 }
 278
 279
 280 int hostapd_mac_comp(const void *a, const void *b)
 281 {
 282         return os_memcmp(a, b, sizeof(macaddr));
 283 }
 284
 285
 286 static int hostapd_config_read_wpa_psk(const char *fname,
 287                                        struct hostapd_ssid *ssid)
 288 {
 289         FILE *f;
 290         char buf[128], *pos;
 291         const char *keyid;
 292         char *context;
 293         char *context2;
 294         char *token;
 295         char *name;
 296         char *value;
 297         int line = 0, ret = 0, len, ok;
 298         u8 addr[ETH_ALEN];
 299         struct hostapd_wpa_psk *psk;
 300
 301         if (!fname)
 302                 return 0;
 303
 304         f = fopen(fname, "r");
 305         if (!f) {
 306                 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname);
 307                 return -1;
 308         }
 309
 310         while (fgets(buf, sizeof(buf), f)) {
 311                 int vlan_id = 0;
 312                 int wps = 0;
 313
 314                 line++;
 315
 316                 if (buf[0] == '#')
 317                         continue;
 318                 pos = buf;
 319                 while (*pos != '\0') {
 320                         if (*pos == '\n') {
 321                                 *pos = '\0';
 322                                 break;
 323                         }
 324                         pos++;
 325                 }
 326                 if (buf[0] == '\0')
 327                         continue;
 328
 329                 context = NULL;
 330                 keyid = NULL;
 331                 while ((token = str_token(buf, " ", &context))) {
 332                         if (!os_strchr(token, '='))
 333                                 break;
 334                         context2 = NULL;
 335                         name = str_token(token, "=", &context2);
 336                         if (!name)
 337                                 break;
 338                         value = str_token(token, "", &context2);
 339                         if (!value)
 340                                 value = "";
 341                         if (!os_strcmp(name, "keyid")) {
 342                                 keyid = value;
 343                         } else if (!os_strcmp(name, "wps")) {
 344                                 wps = atoi(value);
 345                         } else if (!os_strcmp(name, "vlanid")) {
 346                                 vlan_id = atoi(value);
 347                         } else {
 348                                 wpa_printf(MSG_ERROR,
 349                                            "Unrecognized '%s=%s' on line %d in '%s'",
 350                                            name, value, line, fname);
 351                                 ret = -1;
 352                                 break;
 353                         }
 354                 }
 355
 356                 if (ret == -1)
 357                         break;
 358
 359                 if (!token)
 360                         token = "";
 361                 if (hwaddr_aton(token, addr)) {
 362                         wpa_printf(MSG_ERROR,
 363                                    "Invalid MAC address '%s' on line %d in '%s'",
 364                                    token, line, fname);
 365                         ret = -1;
 366                         break;
 367                 }
 368
 369                 psk = os_zalloc(sizeof(*psk));
 370                 if (psk == NULL) {
 371                         wpa_printf(MSG_ERROR, "WPA PSK allocation failed");
 372                         ret = -1;
 373                         break;
 374                 }
 375                 psk->vlan_id = vlan_id;
 376                 if (is_zero_ether_addr(addr))
 377                         psk->group = 1;
 378                 else
 379                         os_memcpy(psk->addr, addr, ETH_ALEN);
 380
 381                 pos = str_token(buf, "", &context);
 382                 if (!pos) {
 383                         wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'",
 384                                    line, fname);
 385                         os_free(psk);
 386                         ret = -1;
 387                         break;
 388                 }
 389
 390                 ok = 0;
 391                 len = os_strlen(pos);
 392                 if (len == 2 * PMK_LEN &&
 393                     hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
 394                         ok = 1;
 395                 else if (len >= 8 && len < 64 &&
 396                          pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
 397                                      4096, psk->psk, PMK_LEN) == 0)
 398                         ok = 1;
 399                 if (!ok) {
 400                         wpa_printf(MSG_ERROR,
 401                                    "Invalid PSK '%s' on line %d in '%s'",
 402                                    pos, line, fname);
 403                         os_free(psk);
 404                         ret = -1;
 405                         break;
 406                 }
 407
 408                 if (keyid) {
 409                         len = os_strlcpy(psk->keyid, keyid, sizeof(psk->keyid));
 410                         if ((size_t) len >= sizeof(psk->keyid)) {
 411                                 wpa_printf(MSG_ERROR,
 412                                            "PSK keyid too long on line %d in '%s'",
 413                                            line, fname);
 414                                 os_free(psk);
 415                                 ret = -1;
 416                                 break;
 417                         }
 418                 }
 419
 420                 psk->wps = wps;
 421
 422                 psk->next = ssid->wpa_psk;
 423                 ssid->wpa_psk = psk;
 424         }
 425
 426         fclose(f);
 427
 428         return ret;
 429 }
 430
 431
 432 static int hostapd_derive_psk(struct hostapd_ssid *ssid)
 433 {
 434         ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 435         if (ssid->wpa_psk == NULL) {
 436                 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK");
 437                 return -1;
 438         }
 439         wpa_hexdump_ascii(MSG_DEBUG, "SSID",
 440                           (u8 *) ssid->ssid, ssid->ssid_len);
 441         wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)",
 442                               (u8 *) ssid->wpa_passphrase,
 443                               os_strlen(ssid->wpa_passphrase));
 444         pbkdf2_sha1(ssid->wpa_passphrase,
 445                     ssid->ssid, ssid->ssid_len,
 446                     4096, ssid->wpa_psk->psk, PMK_LEN);
 447         wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)",
 448                         ssid->wpa_psk->psk, PMK_LEN);
 449         return 0;
 450 }
 451
 452
 453 int hostapd_setup_sae_pt(struct hostapd_bss_config *conf)
 454 {
 455 #ifdef CONFIG_SAE
 456         struct hostapd_ssid *ssid = &conf->ssid;
 457         struct sae_password_entry *pw;
 458
 459         if ((conf->sae_pwe == 0 && !hostapd_sae_pw_id_in_use(conf)) ||
 460             conf->sae_pwe == 3 ||
 461             !wpa_key_mgmt_sae(conf->wpa_key_mgmt))
 462                 return 0; /* PT not needed */
 463
 464         sae_deinit_pt(ssid->pt);
 465         ssid->pt = NULL;
 466         if (ssid->wpa_passphrase) {
 467                 ssid->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
 468                                          ssid->ssid_len,
 469                                          (const u8 *) ssid->wpa_passphrase,
 470                                          os_strlen(ssid->wpa_passphrase),
 471                                          NULL);
 472                 if (!ssid->pt)
 473                         return -1;
 474         }
 475
 476         for (pw = conf->sae_passwords; pw; pw = pw->next) {
 477                 sae_deinit_pt(pw->pt);
 478                 pw->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
 479                                        ssid->ssid_len,
 480                                        (const u8 *) pw->password,
 481                                        os_strlen(pw->password),
 482                                        pw->identifier);
 483                 if (!pw->pt)
 484                         return -1;
 485         }
 486 #endif /* CONFIG_SAE */
 487
 488         return 0;
 489 }
 490
 491
 492 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
 493 {
 494         struct hostapd_ssid *ssid = &conf->ssid;
 495
 496         if (hostapd_setup_sae_pt(conf) < 0)
 497                 return -1;
 498
 499         if (ssid->wpa_passphrase != NULL) {
 500                 if (ssid->wpa_psk != NULL) {
 501                         wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
 502                                    "instead of passphrase");
 503                 } else {
 504                         wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on "
 505                                    "passphrase");
 506                         if (hostapd_derive_psk(ssid) < 0)
 507                                 return -1;
 508                 }
 509                 ssid->wpa_psk->group = 1;
 510         }
 511
 512         return hostapd_config_read_wpa_psk(ssid->wpa_psk_file, &conf->ssid);
 513 }
 514
 515
 516 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
 517                                        int num_servers)
 518 {
 519         int i;
 520
 521         for (i = 0; i < num_servers; i++) {
 522                 os_free(servers[i].shared_secret);
 523         }
 524         os_free(servers);
 525 }
 526
 527
 528 struct hostapd_radius_attr *
 529 hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type)
 530 {
 531         for (; attr; attr = attr->next) {
 532                 if (attr->type == type)
 533                         return attr;
 534         }
 535         return NULL;
 536 }
 537
 538
 539 struct hostapd_radius_attr * hostapd_parse_radius_attr(const char *value)
 540 {
 541         const char *pos;
 542         char syntax;
 543         struct hostapd_radius_attr *attr;
 544         size_t len;
 545
 546         attr = os_zalloc(sizeof(*attr));
 547         if (!attr)
 548                 return NULL;
 549
 550         attr->type = atoi(value);
 551
 552         pos = os_strchr(value, ':');
 553         if (!pos) {
 554                 attr->val = wpabuf_alloc(1);
 555                 if (!attr->val) {
 556                         os_free(attr);
 557                         return NULL;
 558                 }
 559                 wpabuf_put_u8(attr->val, 0);
 560                 return attr;
 561         }
 562
 563         pos++;
 564         if (pos[0] == '\0' || pos[1] != ':') {
 565                 os_free(attr);
 566                 return NULL;
 567         }
 568         syntax = *pos++;
 569         pos++;
 570
 571         switch (syntax) {
 572         case 's':
 573                 attr->val = wpabuf_alloc_copy(pos, os_strlen(pos));
 574                 break;
 575         case 'x':
 576                 len = os_strlen(pos);
 577                 if (len & 1)
 578                         break;
 579                 len /= 2;
 580                 attr->val = wpabuf_alloc(len);
 581                 if (!attr->val)
 582                         break;
 583                 if (hexstr2bin(pos, wpabuf_put(attr->val, len), len) < 0) {
 584                         wpabuf_free(attr->val);
 585                         os_free(attr);
 586                         return NULL;
 587                 }
 588                 break;
 589         case 'd':
 590                 attr->val = wpabuf_alloc(4);
 591                 if (attr->val)
 592                         wpabuf_put_be32(attr->val, atoi(pos));
 593                 break;
 594         default:
 595                 os_free(attr);
 596                 return NULL;
 597         }
 598
 599         if (!attr->val) {
 600                 os_free(attr);
 601                 return NULL;
 602         }
 603
 604         return attr;
 605 }
 606
 607
 608 void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr)
 609 {
 610         struct hostapd_radius_attr *prev;
 611
 612         while (attr) {
 613                 prev = attr;
 614                 attr = attr->next;
 615                 wpabuf_free(prev->val);
 616                 os_free(prev);
 617         }
 618 }
 619
 620
 621 void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
 622 {
 623         hostapd_config_free_radius_attr(user->accept_attr);
 624         os_free(user->identity);
 625         bin_clear_free(user->password, user->password_len);
 626         bin_clear_free(user->salt, user->salt_len);
 627         os_free(user);
 628 }
 629
 630
 631 void hostapd_config_free_eap_users(struct hostapd_eap_user *user)
 632 {
 633         struct hostapd_eap_user *prev_user;
 634
 635         while (user) {
 636                 prev_user = user;
 637                 user = user->next;
 638                 hostapd_config_free_eap_user(prev_user);
 639         }
 640 }
 641
 642
 643 #ifdef CONFIG_WEP
 644 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
 645 {
 646         int i;
 647         for (i = 0; i < NUM_WEP_KEYS; i++) {
 648                 bin_clear_free(keys->key[i], keys->len[i]);
 649                 keys->key[i] = NULL;
 650         }
 651 }
 652 #endif /* CONFIG_WEP */
 653
 654
 655 void hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk **l)
 656 {
 657         struct hostapd_wpa_psk *psk, *tmp;
 658
 659         for (psk = *l; psk;) {
 660                 tmp = psk;
 661                 psk = psk->next;
 662                 bin_clear_free(tmp, sizeof(*tmp));
 663         }
 664         *l = NULL;
 665 }
 666
 667
 668 static void hostapd_config_free_anqp_elem(struct hostapd_bss_config *conf)
 669 {
 670         struct anqp_element *elem;
 671
 672         while ((elem = dl_list_first(&conf->anqp_elem, struct anqp_element,
 673                                      list))) {
 674                 dl_list_del(&elem->list);
 675                 wpabuf_free(elem->payload);
 676                 os_free(elem);
 677         }
 678 }
 679
 680
 681 static void hostapd_config_free_fils_realms(struct hostapd_bss_config *conf)
 682 {
 683 #ifdef CONFIG_FILS
 684         struct fils_realm *realm;
 685
 686         while ((realm = dl_list_first(&conf->fils_realms, struct fils_realm,
 687                                       list))) {
 688                 dl_list_del(&realm->list);
 689                 os_free(realm);
 690         }
 691 #endif /* CONFIG_FILS */
 692 }
 693
 694
 695 static void hostapd_config_free_sae_passwords(struct hostapd_bss_config *conf)
 696 {
 697         struct sae_password_entry *pw, *tmp;
 698
 699         pw = conf->sae_passwords;
 700         conf->sae_passwords = NULL;
 701         while (pw) {
 702                 tmp = pw;
 703                 pw = pw->next;
 704                 str_clear_free(tmp->password);
 705                 os_free(tmp->identifier);
 706 #ifdef CONFIG_SAE
 707                 sae_deinit_pt(tmp->pt);
 708 #endif /* CONFIG_SAE */
 709                 os_free(tmp);
 710         }
 711 }
 712
 713
 714 #ifdef CONFIG_DPP2
 715 static void hostapd_dpp_controller_conf_free(struct dpp_controller_conf *conf)
 716 {
 717         struct dpp_controller_conf *prev;
 718
 719         while (conf) {
 720                 prev = conf;
 721                 conf = conf->next;
 722                 os_free(prev);
 723         }
 724 }
 725 #endif /* CONFIG_DPP2 */
 726
 727
 728 void hostapd_config_free_bss(struct hostapd_bss_config *conf)
 729 {
 730 #if defined(CONFIG_WPS) || defined(CONFIG_HS20)
 731         size_t i;
 732 #endif
 733
 734         if (conf == NULL)
 735                 return;
 736
 737         hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);
 738
 739         str_clear_free(conf->ssid.wpa_passphrase);
 740         os_free(conf->ssid.wpa_psk_file);
 741 #ifdef CONFIG_WEP
 742         hostapd_config_free_wep(&conf->ssid.wep);
 743 #endif /* CONFIG_WEP */
 744 #ifdef CONFIG_FULL_DYNAMIC_VLAN
 745         os_free(conf->ssid.vlan_tagged_interface);
 746 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 747 #ifdef CONFIG_SAE
 748         sae_deinit_pt(conf->ssid.pt);
 749 #endif /* CONFIG_SAE */
 750
 751         hostapd_config_free_eap_users(conf->eap_user);
 752         os_free(conf->eap_user_sqlite);
 753
 754         os_free(conf->eap_req_id_text);
 755         os_free(conf->erp_domain);
 756         os_free(conf->accept_mac);
 757         os_free(conf->deny_mac);
 758         os_free(conf->nas_identifier);
 759         if (conf->radius) {
 760                 hostapd_config_free_radius(conf->radius->auth_servers,
 761                                            conf->radius->num_auth_servers);
 762                 hostapd_config_free_radius(conf->radius->acct_servers,
 763                                            conf->radius->num_acct_servers);
 764         }
 765         hostapd_config_free_radius_attr(conf->radius_auth_req_attr);
 766         hostapd_config_free_radius_attr(conf->radius_acct_req_attr);
 767         os_free(conf->radius_req_attr_sqlite);
 768         os_free(conf->rsn_preauth_interfaces);
 769         os_free(conf->ctrl_interface);
 770         os_free(conf->ca_cert);
 771         os_free(conf->server_cert);
 772         os_free(conf->server_cert2);
 773         os_free(conf->private_key);
 774         os_free(conf->private_key2);
 775         os_free(conf->private_key_passwd);
 776         os_free(conf->private_key_passwd2);
 777         os_free(conf->check_cert_subject);
 778         os_free(conf->ocsp_stapling_response);
 779         os_free(conf->ocsp_stapling_response_multi);
 780         os_free(conf->dh_file);
 781         os_free(conf->openssl_ciphers);
 782         os_free(conf->openssl_ecdh_curves);
 783         os_free(conf->pac_opaque_encr_key);
 784         os_free(conf->eap_fast_a_id);
 785         os_free(conf->eap_fast_a_id_info);
 786         os_free(conf->eap_sim_db);
 787         os_free(conf->radius_server_clients);
 788         os_free(conf->radius);
 789         os_free(conf->radius_das_shared_secret);
 790         hostapd_config_free_vlan(conf);
 791         os_free(conf->time_zone);
 792
 793 #ifdef CONFIG_IEEE80211R_AP
 794         {
 795                 struct ft_remote_r0kh *r0kh, *r0kh_prev;
 796                 struct ft_remote_r1kh *r1kh, *r1kh_prev;
 797
 798                 r0kh = conf->r0kh_list;
 799                 conf->r0kh_list = NULL;
 800                 while (r0kh) {
 801                         r0kh_prev = r0kh;
 802                         r0kh = r0kh->next;
 803                         os_free(r0kh_prev);
 804                 }
 805
 806                 r1kh = conf->r1kh_list;
 807                 conf->r1kh_list = NULL;
 808                 while (r1kh) {
 809                         r1kh_prev = r1kh;
 810                         r1kh = r1kh->next;
 811                         os_free(r1kh_prev);
 812                 }
 813         }
 814 #endif /* CONFIG_IEEE80211R_AP */
 815
 816 #ifdef CONFIG_WPS
 817         os_free(conf->wps_pin_requests);
 818         os_free(conf->device_name);
 819         os_free(conf->manufacturer);
 820         os_free(conf->model_name);
 821         os_free(conf->model_number);
 822         os_free(conf->serial_number);
 823         os_free(conf->config_methods);
 824         os_free(conf->ap_pin);
 825         os_free(conf->extra_cred);
 826         os_free(conf->ap_settings);
 827         hostapd_config_clear_wpa_psk(&conf->multi_ap_backhaul_ssid.wpa_psk);
 828         str_clear_free(conf->multi_ap_backhaul_ssid.wpa_passphrase);
 829         os_free(conf->upnp_iface);
 830         os_free(conf->friendly_name);
 831         os_free(conf->manufacturer_url);
 832         os_free(conf->model_description);
 833         os_free(conf->model_url);
 834         os_free(conf->upc);
 835         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
 836                 wpabuf_free(conf->wps_vendor_ext[i]);
 837         wpabuf_free(conf->wps_application_ext);
 838         wpabuf_free(conf->wps_nfc_dh_pubkey);
 839         wpabuf_free(conf->wps_nfc_dh_privkey);
 840         wpabuf_free(conf->wps_nfc_dev_pw);
 841 #endif /* CONFIG_WPS */
 842
 843         os_free(conf->roaming_consortium);
 844         os_free(conf->venue_name);
 845         os_free(conf->venue_url);
 846         os_free(conf->nai_realm_data);
 847         os_free(conf->network_auth_type);
 848         os_free(conf->anqp_3gpp_cell_net);
 849         os_free(conf->domain_name);
 850         hostapd_config_free_anqp_elem(conf);
 851
 852 #ifdef CONFIG_RADIUS_TEST
 853         os_free(conf->dump_msk_file);
 854 #endif /* CONFIG_RADIUS_TEST */
 855
 856 #ifdef CONFIG_HS20
 857         os_free(conf->hs20_oper_friendly_name);
 858         os_free(conf->hs20_wan_metrics);
 859         os_free(conf->hs20_connection_capability);
 860         os_free(conf->hs20_operating_class);
 861         os_free(conf->hs20_icons);
 862         if (conf->hs20_osu_providers) {
 863                 for (i = 0; i < conf->hs20_osu_providers_count; i++) {
 864                         struct hs20_osu_provider *p;
 865                         size_t j;
 866                         p = &conf->hs20_osu_providers[i];
 867                         os_free(p->friendly_name);
 868                         os_free(p->server_uri);
 869                         os_free(p->method_list);
 870                         for (j = 0; j < p->icons_count; j++)
 871                                 os_free(p->icons[j]);
 872                         os_free(p->icons);
 873                         os_free(p->osu_nai);
 874                         os_free(p->osu_nai2);
 875                         os_free(p->service_desc);
 876                 }
 877                 os_free(conf->hs20_osu_providers);
 878         }
 879         if (conf->hs20_operator_icon) {
 880                 for (i = 0; i < conf->hs20_operator_icon_count; i++)
 881                         os_free(conf->hs20_operator_icon[i]);
 882                 os_free(conf->hs20_operator_icon);
 883         }
 884         os_free(conf->subscr_remediation_url);
 885         os_free(conf->hs20_sim_provisioning_url);
 886         os_free(conf->t_c_filename);
 887         os_free(conf->t_c_server_url);
 888 #endif /* CONFIG_HS20 */
 889
 890         wpabuf_free(conf->vendor_elements);
 891         wpabuf_free(conf->assocresp_elements);
 892
 893         os_free(conf->sae_groups);
 894 #ifdef CONFIG_OWE
 895         os_free(conf->owe_groups);
 896 #endif /* CONFIG_OWE */
 897
 898         os_free(conf->wowlan_triggers);
 899
 900         os_free(conf->server_id);
 901
 902 #ifdef CONFIG_TESTING_OPTIONS
 903         wpabuf_free(conf->own_ie_override);
 904         wpabuf_free(conf->sae_commit_override);
 905         wpabuf_free(conf->rsne_override_eapol);
 906         wpabuf_free(conf->rsnxe_override_eapol);
 907         wpabuf_free(conf->rsne_override_ft);
 908         wpabuf_free(conf->rsnxe_override_ft);
 909         wpabuf_free(conf->gtk_rsc_override);
 910         wpabuf_free(conf->igtk_rsc_override);
 911 #endif /* CONFIG_TESTING_OPTIONS */
 912
 913         os_free(conf->no_probe_resp_if_seen_on);
 914         os_free(conf->no_auth_if_seen_on);
 915
 916         hostapd_config_free_fils_realms(conf);
 917
 918 #ifdef CONFIG_DPP
 919         os_free(conf->dpp_name);
 920         os_free(conf->dpp_mud_url);
 921         os_free(conf->dpp_connector);
 922         wpabuf_free(conf->dpp_netaccesskey);
 923         wpabuf_free(conf->dpp_csign);
 924 #ifdef CONFIG_DPP2
 925         hostapd_dpp_controller_conf_free(conf->dpp_controller);
 926 #endif /* CONFIG_DPP2 */
 927 #endif /* CONFIG_DPP */
 928
 929         hostapd_config_free_sae_passwords(conf);
 930
 931 #ifdef CONFIG_AIRTIME_POLICY
 932         {
 933                 struct airtime_sta_weight *wt, *wt_prev;
 934
 935                 wt = conf->airtime_weight_list;
 936                 conf->airtime_weight_list = NULL;
 937                 while (wt) {
 938                         wt_prev = wt;
 939                         wt = wt->next;
 940                         os_free(wt_prev);
 941                 }
 942         }
 943 #endif /* CONFIG_AIRTIME_POLICY */
 944
 945         os_free(conf);
 946 }
 947
 948
 949 /**
 950  * hostapd_config_free - Free hostapd configuration
 951  * @conf: Configuration data from hostapd_config_read().
 952  */
 953 void hostapd_config_free(struct hostapd_config *conf)
 954 {
 955         size_t i;
 956
 957         if (conf == NULL)
 958                 return;
 959
 960         for (i = 0; i < conf->num_bss; i++)
 961                 hostapd_config_free_bss(conf->bss[i]);
 962         os_free(conf->bss);
 963         os_free(conf->supported_rates);
 964         os_free(conf->basic_rates);
 965         os_free(conf->acs_ch_list.range);
 966         os_free(conf->acs_freq_list.range);
 967         os_free(conf->driver_params);
 968 #ifdef CONFIG_ACS
 969         os_free(conf->acs_chan_bias);
 970 #endif /* CONFIG_ACS */
 971         wpabuf_free(conf->lci);
 972         wpabuf_free(conf->civic);
 973
 974         os_free(conf);
 975 }
 976
 977
 978 /**
 979  * hostapd_maclist_found - Find a MAC address from a list
 980  * @list: MAC address list
 981  * @num_entries: Number of addresses in the list
 982  * @addr: Address to search for
 983  * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed
 984  * Returns: 1 if address is in the list or 0 if not.
 985  *
 986  * Perform a binary search for given MAC address from a pre-sorted list.
 987  */
 988 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
 989                           const u8 *addr, struct vlan_description *vlan_id)
 990 {
 991         int start, end, middle, res;
 992
 993         start = 0;
 994         end = num_entries - 1;
 995
 996         while (start <= end) {
 997                 middle = (start + end) / 2;
 998                 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
 999                 if (res == 0) {
1000                         if (vlan_id)
1001                                 *vlan_id = list[middle].vlan_id;
1002                         return 1;
1003                 }
1004                 if (res < 0)
1005                         start = middle + 1;
1006                 else
1007                         end = middle - 1;
1008         }
1009
1010         return 0;
1011 }
1012
1013
1014 int hostapd_rate_found(int *list, int rate)
1015 {
1016         int i;
1017
1018         if (list == NULL)
1019                 return 0;
1020
1021         for (i = 0; list[i] >= 0; i++)
1022                 if (list[i] == rate)
1023                         return 1;
1024
1025         return 0;
1026 }
1027
1028
1029 int hostapd_vlan_valid(struct hostapd_vlan *vlan,
1030                        struct vlan_description *vlan_desc)
1031 {
1032         struct hostapd_vlan *v = vlan;
1033         int i;
1034
1035         if (!vlan_desc->notempty || vlan_desc->untagged < 0 ||
1036             vlan_desc->untagged > MAX_VLAN_ID)
1037                 return 0;
1038         for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) {
1039                 if (vlan_desc->tagged[i] < 0 ||
1040                     vlan_desc->tagged[i] > MAX_VLAN_ID)
1041                         return 0;
1042         }
1043         if (!vlan_desc->untagged && !vlan_desc->tagged[0])
1044                 return 0;
1045
1046         while (v) {
1047                 if (!vlan_compare(&v->vlan_desc, vlan_desc) ||
1048                     v->vlan_id == VLAN_ID_WILDCARD)
1049                         return 1;
1050                 v = v->next;
1051         }
1052         return 0;
1053 }
1054
1055
1056 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
1057 {
1058         struct hostapd_vlan *v = vlan;
1059         while (v) {
1060                 if (v->vlan_id == vlan_id)
1061                         return v->ifname;
1062                 v = v->next;
1063         }
1064         return NULL;
1065 }
1066
1067
1068 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
1069                            const u8 *addr, const u8 *p2p_dev_addr,
1070                            const u8 *prev_psk, int *vlan_id)
1071 {
1072         struct hostapd_wpa_psk *psk;
1073         int next_ok = prev_psk == NULL;
1074
1075         if (vlan_id)
1076                 *vlan_id = 0;
1077
1078         if (p2p_dev_addr && !is_zero_ether_addr(p2p_dev_addr)) {
1079                 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1080                            " p2p_dev_addr=" MACSTR " prev_psk=%p",
1081                            MAC2STR(addr), MAC2STR(p2p_dev_addr), prev_psk);
1082                 addr = NULL; /* Use P2P Device Address for matching */
1083         } else {
1084                 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1085                            " prev_psk=%p",
1086                            MAC2STR(addr), prev_psk);
1087         }
1088
1089         for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
1090                 if (next_ok &&
1091                     (psk->group ||
1092                      (addr && os_memcmp(psk->addr, addr, ETH_ALEN) == 0) ||
1093                      (!addr && p2p_dev_addr &&
1094                       os_memcmp(psk->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) ==
1095                       0))) {
1096                         if (vlan_id)
1097                                 *vlan_id = psk->vlan_id;
1098                         return psk->psk;
1099                 }
1100
1101                 if (psk->psk == prev_psk)
1102                         next_ok = 1;
1103         }
1104
1105         return NULL;
1106 }
1107
1108
1109 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
1110                                     struct hostapd_config *conf,
1111                                     int full_config)
1112 {
1113         if (full_config && bss->ieee802_1x && !bss->eap_server &&
1114             !bss->radius->auth_servers) {
1115                 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
1116                            "EAP authenticator configured).");
1117                 return -1;
1118         }
1119
1120 #ifdef CONFIG_WEP
1121         if (bss->wpa) {
1122                 int wep, i;
1123
1124                 wep = bss->default_wep_key_len > 0 ||
1125                        bss->individual_wep_key_len > 0;
1126                 for (i = 0; i < NUM_WEP_KEYS; i++) {
1127                         if (bss->ssid.wep.keys_set) {
1128                                 wep = 1;
1129                                 break;
1130                         }
1131                 }
1132
1133                 if (wep) {
1134                         wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported");
1135                         return -1;
1136                 }
1137         }
1138 #endif /* CONFIG_WEP */
1139
1140         if (full_config && bss->wpa &&
1141             bss->wpa_psk_radius != PSK_RADIUS_IGNORED &&
1142             bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
1143                 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no "
1144                            "RADIUS checking (macaddr_acl=2) enabled.");
1145                 return -1;
1146         }
1147
1148         if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
1149             bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
1150             bss->ssid.wpa_psk_file == NULL &&
1151             (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED ||
1152              bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) {
1153                 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
1154                            "is not configured.");
1155                 return -1;
1156         }
1157
1158         if (full_config && !is_zero_ether_addr(bss->bssid)) {
1159                 size_t i;
1160
1161                 for (i = 0; i < conf->num_bss; i++) {
1162                         if (conf->bss[i] != bss &&
1163                             (hostapd_mac_comp(conf->bss[i]->bssid,
1164                                               bss->bssid) == 0)) {
1165                                 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
1166                                            " on interface '%s' and '%s'.",
1167                                            MAC2STR(bss->bssid),
1168                                            conf->bss[i]->iface, bss->iface);
1169                                 return -1;
1170                         }
1171                 }
1172         }
1173
1174 #ifdef CONFIG_IEEE80211R_AP
1175         if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) &&
1176             (bss->nas_identifier == NULL ||
1177              os_strlen(bss->nas_identifier) < 1 ||
1178              os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
1179                 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
1180                            "nas_identifier to be configured as a 1..48 octet "
1181                            "string");
1182                 return -1;
1183         }
1184 #endif /* CONFIG_IEEE80211R_AP */
1185
1186         if (full_config && conf->ieee80211n &&
1187             conf->hw_mode == HOSTAPD_MODE_IEEE80211B) {
1188                 bss->disable_11n = 1;
1189                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not "
1190                            "allowed, disabling HT capabilities");
1191         }
1192
1193 #ifdef CONFIG_WEP
1194         if (full_config && conf->ieee80211n &&
1195             bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1196                 bss->disable_11n = 1;
1197                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not "
1198                            "allowed, disabling HT capabilities");
1199         }
1200 #endif /* CONFIG_WEP */
1201
1202         if (full_config && conf->ieee80211n && bss->wpa &&
1203             !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1204             !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1205                                    WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1206         {
1207                 bss->disable_11n = 1;
1208                 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
1209                            "requires CCMP/GCMP to be enabled, disabling HT "
1210                            "capabilities");
1211         }
1212
1213 #ifdef CONFIG_IEEE80211AC
1214 #ifdef CONFIG_WEP
1215         if (full_config && conf->ieee80211ac &&
1216             bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1217                 bss->disable_11ac = 1;
1218                 wpa_printf(MSG_ERROR,
1219                            "VHT (IEEE 802.11ac) with WEP is not allowed, disabling VHT capabilities");
1220         }
1221 #endif /* CONFIG_WEP */
1222
1223         if (full_config && conf->ieee80211ac && bss->wpa &&
1224             !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1225             !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1226                                    WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1227         {
1228                 bss->disable_11ac = 1;
1229                 wpa_printf(MSG_ERROR,
1230                            "VHT (IEEE 802.11ac) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling VHT capabilities");
1231         }
1232 #endif /* CONFIG_IEEE80211AC */
1233
1234 #ifdef CONFIG_WPS
1235         if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) {
1236                 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
1237                            "configuration forced WPS to be disabled");
1238                 bss->wps_state = 0;
1239         }
1240
1241 #ifdef CONFIG_WEP
1242         if (full_config && bss->wps_state &&
1243             bss->ssid.wep.keys_set && bss->wpa == 0) {
1244                 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
1245                            "disabled");
1246                 bss->wps_state = 0;
1247         }
1248 #endif /* CONFIG_WEP */
1249
1250         if (full_config && bss->wps_state && bss->wpa &&
1251             (!(bss->wpa & 2) ||
1252              !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1253                                     WPA_CIPHER_CCMP_256 |
1254                                     WPA_CIPHER_GCMP_256)))) {
1255                 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without "
1256                            "WPA2/CCMP/GCMP forced WPS to be disabled");
1257                 bss->wps_state = 0;
1258         }
1259 #endif /* CONFIG_WPS */
1260
1261 #ifdef CONFIG_HS20
1262         if (full_config && bss->hs20 &&
1263             (!(bss->wpa & 2) ||
1264              !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1265                                     WPA_CIPHER_CCMP_256 |
1266                                     WPA_CIPHER_GCMP_256)))) {
1267                 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP "
1268                            "configuration is required for Hotspot 2.0 "
1269                            "functionality");
1270                 return -1;
1271         }
1272 #endif /* CONFIG_HS20 */
1273
1274 #ifdef CONFIG_MBO
1275         if (full_config && bss->mbo_enabled && (bss->wpa & 2) &&
1276             bss->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
1277                 wpa_printf(MSG_ERROR,
1278                            "MBO: PMF needs to be enabled whenever using WPA2 with MBO");
1279                 return -1;
1280         }
1281 #endif /* CONFIG_MBO */
1282
1283 #ifdef CONFIG_OCV
1284         if (full_config && bss->ieee80211w == NO_MGMT_FRAME_PROTECTION &&
1285             bss->ocv) {
1286                 wpa_printf(MSG_ERROR,
1287                            "OCV: PMF needs to be enabled whenever using OCV");
1288                 return -1;
1289         }
1290 #endif /* CONFIG_OCV */
1291
1292         return 0;
1293 }
1294
1295
1296 static int hostapd_config_check_cw(struct hostapd_config *conf, int queue)
1297 {
1298         int tx_cwmin = conf->tx_queue[queue].cwmin;
1299         int tx_cwmax = conf->tx_queue[queue].cwmax;
1300         int ac_cwmin = conf->wmm_ac_params[queue].cwmin;
1301         int ac_cwmax = conf->wmm_ac_params[queue].cwmax;
1302
1303         if (tx_cwmin > tx_cwmax) {
1304                 wpa_printf(MSG_ERROR,
1305                            "Invalid TX queue cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1306                            tx_cwmin, tx_cwmax);
1307                 return -1;
1308         }
1309         if (ac_cwmin > ac_cwmax) {
1310                 wpa_printf(MSG_ERROR,
1311                            "Invalid WMM AC cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1312                            ac_cwmin, ac_cwmax);
1313                 return -1;
1314         }
1315         return 0;
1316 }
1317
1318
1319 int hostapd_config_check(struct hostapd_config *conf, int full_config)
1320 {
1321         size_t i;
1322
1323         if (full_config && conf->ieee80211d &&
1324             (!conf->country[0] || !conf->country[1])) {
1325                 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
1326                            "setting the country_code");
1327                 return -1;
1328         }
1329
1330         if (full_config && conf->ieee80211h && !conf->ieee80211d) {
1331                 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without "
1332                            "IEEE 802.11d enabled");
1333                 return -1;
1334         }
1335
1336         if (full_config && conf->local_pwr_constraint != -1 &&
1337             !conf->ieee80211d) {
1338                 wpa_printf(MSG_ERROR, "Cannot add Power Constraint element without Country element");
1339                 return -1;
1340         }
1341
1342         if (full_config && conf->spectrum_mgmt_required &&
1343             conf->local_pwr_constraint == -1) {
1344                 wpa_printf(MSG_ERROR, "Cannot set Spectrum Management bit without Country and Power Constraint elements");
1345                 return -1;
1346         }
1347
1348 #ifdef CONFIG_AIRTIME_POLICY
1349         if (full_config && conf->airtime_mode > AIRTIME_MODE_STATIC &&
1350             !conf->airtime_update_interval) {
1351                 wpa_printf(MSG_ERROR, "Airtime update interval cannot be zero");
1352                 return -1;
1353         }
1354 #endif /* CONFIG_AIRTIME_POLICY */
1355         for (i = 0; i < NUM_TX_QUEUES; i++) {
1356                 if (hostapd_config_check_cw(conf, i))
1357                         return -1;
1358         }
1359
1360         for (i = 0; i < conf->num_bss; i++) {
1361                 if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
1362                         return -1;
1363         }
1364
1365         return 0;
1366 }
1367
1368
1369 void hostapd_set_security_params(struct hostapd_bss_config *bss,
1370                                  int full_config)
1371 {
1372 #ifdef CONFIG_WEP
1373         if (bss->individual_wep_key_len == 0) {
1374                 /* individual keys are not use; can use key idx0 for
1375                  * broadcast keys */
1376                 bss->broadcast_key_idx_min = 0;
1377         }
1378 #endif /* CONFIG_WEP */
1379
1380         if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
1381                 bss->rsn_pairwise = bss->wpa_pairwise;
1382         if (bss->group_cipher)
1383                 bss->wpa_group = bss->group_cipher;
1384         else
1385                 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
1386                                                             bss->wpa_pairwise,
1387                                                             bss->rsn_pairwise);
1388         if (!bss->wpa_group_rekey_set)
1389                 bss->wpa_group_rekey = bss->wpa_group == WPA_CIPHER_TKIP ?
1390                         600 : 86400;
1391
1392         if (full_config) {
1393                 bss->radius->auth_server = bss->radius->auth_servers;
1394                 bss->radius->acct_server = bss->radius->acct_servers;
1395         }
1396
1397         if (bss->wpa && bss->ieee802_1x) {
1398                 bss->ssid.security_policy = SECURITY_WPA;
1399         } else if (bss->wpa) {
1400                 bss->ssid.security_policy = SECURITY_WPA_PSK;
1401         } else if (bss->ieee802_1x) {
1402                 int cipher = WPA_CIPHER_NONE;
1403                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
1404 #ifdef CONFIG_WEP
1405                 bss->ssid.wep.default_len = bss->default_wep_key_len;
1406                 if (full_config && bss->default_wep_key_len) {
1407                         cipher = bss->default_wep_key_len >= 13 ?
1408                                 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
1409                 } else if (full_config && bss->ssid.wep.keys_set) {
1410                         if (bss->ssid.wep.len[0] >= 13)
1411                                 cipher = WPA_CIPHER_WEP104;
1412                         else
1413                                 cipher = WPA_CIPHER_WEP40;
1414                 }
1415 #endif /* CONFIG_WEP */
1416                 bss->wpa_group = cipher;
1417                 bss->wpa_pairwise = cipher;
1418                 bss->rsn_pairwise = cipher;
1419                 if (full_config)
1420                         bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
1421 #ifdef CONFIG_WEP
1422         } else if (bss->ssid.wep.keys_set) {
1423                 int cipher = WPA_CIPHER_WEP40;
1424                 if (bss->ssid.wep.len[0] >= 13)
1425                         cipher = WPA_CIPHER_WEP104;
1426                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
1427                 bss->wpa_group = cipher;
1428                 bss->wpa_pairwise = cipher;
1429                 bss->rsn_pairwise = cipher;
1430                 if (full_config)
1431                         bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1432 #endif /* CONFIG_WEP */
1433         } else if (bss->osen) {
1434                 bss->ssid.security_policy = SECURITY_OSEN;
1435                 bss->wpa_group = WPA_CIPHER_CCMP;
1436                 bss->wpa_pairwise = 0;
1437                 bss->rsn_pairwise = WPA_CIPHER_CCMP;
1438         } else {
1439                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
1440                 if (full_config) {
1441                         bss->wpa_group = WPA_CIPHER_NONE;
1442                         bss->wpa_pairwise = WPA_CIPHER_NONE;
1443                         bss->rsn_pairwise = WPA_CIPHER_NONE;
1444                         bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1445                 }
1446         }
1447 }
1448
1449
1450 int hostapd_sae_pw_id_in_use(struct hostapd_bss_config *conf)
1451 {
1452         int with_id = 0, without_id = 0;
1453         struct sae_password_entry *pw;
1454
1455         if (conf->ssid.wpa_passphrase)
1456                 without_id = 1;
1457
1458         for (pw = conf->sae_passwords; pw; pw = pw->next) {
1459                 if (pw->identifier)
1460                         with_id = 1;
1461                 else
1462                         without_id = 1;
1463                 if (with_id && without_id)
1464                         break;
1465         }
1466
1467         if (with_id && !without_id)
1468                 return 2;
1469         return with_id;
1470 }