ap_config.c revision 9866086a955d00e237cc8df3722e7dff75c02532
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 "radius/radius_client.h" 14#include "common/ieee802_11_defs.h" 15#include "common/eapol_common.h" 16#include "eap_common/eap_wsc_common.h" 17#include "eap_server/eap.h" 18#include "wpa_auth.h" 19#include "sta_info.h" 20#include "ap_config.h" 21 22 23static void hostapd_config_free_vlan(struct hostapd_bss_config *bss) 24{ 25 struct hostapd_vlan *vlan, *prev; 26 27 vlan = bss->vlan; 28 prev = NULL; 29 while (vlan) { 30 prev = vlan; 31 vlan = vlan->next; 32 os_free(prev); 33 } 34 35 bss->vlan = NULL; 36} 37 38 39void hostapd_config_defaults_bss(struct hostapd_bss_config *bss) 40{ 41 bss->logger_syslog_level = HOSTAPD_LEVEL_INFO; 42 bss->logger_stdout_level = HOSTAPD_LEVEL_INFO; 43 bss->logger_syslog = (unsigned int) -1; 44 bss->logger_stdout = (unsigned int) -1; 45 46 bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED; 47 48 bss->wep_rekeying_period = 300; 49 /* use key0 in individual key and key1 in broadcast key */ 50 bss->broadcast_key_idx_min = 1; 51 bss->broadcast_key_idx_max = 2; 52 bss->eap_reauth_period = 3600; 53 54 bss->wpa_group_rekey = 600; 55 bss->wpa_gmk_rekey = 86400; 56 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK; 57 bss->wpa_pairwise = WPA_CIPHER_TKIP; 58 bss->wpa_group = WPA_CIPHER_TKIP; 59 bss->rsn_pairwise = 0; 60 61 bss->max_num_sta = MAX_STA_COUNT; 62 63 bss->dtim_period = 2; 64 65 bss->radius_server_auth_port = 1812; 66 bss->ap_max_inactivity = AP_MAX_INACTIVITY; 67 bss->eapol_version = EAPOL_VERSION; 68 69 bss->max_listen_interval = 65535; 70 71 bss->pwd_group = 19; /* ECC: GF(p=256) */ 72 73#ifdef CONFIG_IEEE80211W 74 bss->assoc_sa_query_max_timeout = 1000; 75 bss->assoc_sa_query_retry_timeout = 201; 76#endif /* CONFIG_IEEE80211W */ 77#ifdef EAP_SERVER_FAST 78 /* both anonymous and authenticated provisioning */ 79 bss->eap_fast_prov = 3; 80 bss->pac_key_lifetime = 7 * 24 * 60 * 60; 81 bss->pac_key_refresh_time = 1 * 24 * 60 * 60; 82#endif /* EAP_SERVER_FAST */ 83 84 /* Set to -1 as defaults depends on HT in setup */ 85 bss->wmm_enabled = -1; 86 87#ifdef CONFIG_IEEE80211R 88 bss->ft_over_ds = 1; 89#endif /* CONFIG_IEEE80211R */ 90 91 bss->radius_das_time_window = 300; 92 93 bss->sae_anti_clogging_threshold = 5; 94} 95 96 97struct hostapd_config * hostapd_config_defaults(void) 98{ 99#define ecw2cw(ecw) ((1 << (ecw)) - 1) 100 101 struct hostapd_config *conf; 102 struct hostapd_bss_config *bss; 103 const int aCWmin = 4, aCWmax = 10; 104 const struct hostapd_wmm_ac_params ac_bk = 105 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */ 106 const struct hostapd_wmm_ac_params ac_be = 107 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */ 108 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */ 109 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 }; 110 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */ 111 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 }; 112 const struct hostapd_tx_queue_params txq_bk = 113 { 7, ecw2cw(aCWmin), ecw2cw(aCWmax), 0 }; 114 const struct hostapd_tx_queue_params txq_be = 115 { 3, ecw2cw(aCWmin), 4 * (ecw2cw(aCWmin) + 1) - 1, 0}; 116 const struct hostapd_tx_queue_params txq_vi = 117 { 1, (ecw2cw(aCWmin) + 1) / 2 - 1, ecw2cw(aCWmin), 30}; 118 const struct hostapd_tx_queue_params txq_vo = 119 { 1, (ecw2cw(aCWmin) + 1) / 4 - 1, 120 (ecw2cw(aCWmin) + 1) / 2 - 1, 15}; 121 122#undef ecw2cw 123 124 conf = os_zalloc(sizeof(*conf)); 125 bss = os_zalloc(sizeof(*bss)); 126 if (conf == NULL || bss == NULL) { 127 wpa_printf(MSG_ERROR, "Failed to allocate memory for " 128 "configuration data."); 129 os_free(conf); 130 os_free(bss); 131 return NULL; 132 } 133 conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *)); 134 if (conf->bss == NULL) { 135 os_free(conf); 136 os_free(bss); 137 return NULL; 138 } 139 conf->bss[0] = bss; 140 141 bss->radius = os_zalloc(sizeof(*bss->radius)); 142 if (bss->radius == NULL) { 143 os_free(conf->bss); 144 os_free(conf); 145 os_free(bss); 146 return NULL; 147 } 148 149 hostapd_config_defaults_bss(bss); 150 151 conf->num_bss = 1; 152 153 conf->beacon_int = 100; 154 conf->rts_threshold = -1; /* use driver default: 2347 */ 155 conf->fragm_threshold = -1; /* user driver default: 2346 */ 156 conf->send_probe_response = 1; 157 /* Set to invalid value means do not add Power Constraint IE */ 158 conf->local_pwr_constraint = -1; 159 160 conf->wmm_ac_params[0] = ac_be; 161 conf->wmm_ac_params[1] = ac_bk; 162 conf->wmm_ac_params[2] = ac_vi; 163 conf->wmm_ac_params[3] = ac_vo; 164 165 conf->tx_queue[0] = txq_vo; 166 conf->tx_queue[1] = txq_vi; 167 conf->tx_queue[2] = txq_be; 168 conf->tx_queue[3] = txq_bk; 169 170 conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED; 171 172 conf->ap_table_max_size = 255; 173 conf->ap_table_expiration_time = 60; 174 175#ifdef CONFIG_TESTING_OPTIONS 176 conf->ignore_probe_probability = 0.0d; 177 conf->ignore_auth_probability = 0.0d; 178 conf->ignore_assoc_probability = 0.0d; 179 conf->ignore_reassoc_probability = 0.0d; 180 conf->corrupt_gtk_rekey_mic_probability = 0.0d; 181#endif /* CONFIG_TESTING_OPTIONS */ 182 183#ifdef CONFIG_ACS 184 conf->acs_num_scans = 5; 185#endif /* CONFIG_ACS */ 186 187 return conf; 188} 189 190 191int hostapd_mac_comp(const void *a, const void *b) 192{ 193 return os_memcmp(a, b, sizeof(macaddr)); 194} 195 196 197int hostapd_mac_comp_empty(const void *a) 198{ 199 macaddr empty = { 0 }; 200 return os_memcmp(a, empty, sizeof(macaddr)); 201} 202 203 204static int hostapd_config_read_wpa_psk(const char *fname, 205 struct hostapd_ssid *ssid) 206{ 207 FILE *f; 208 char buf[128], *pos; 209 int line = 0, ret = 0, len, ok; 210 u8 addr[ETH_ALEN]; 211 struct hostapd_wpa_psk *psk; 212 213 if (!fname) 214 return 0; 215 216 f = fopen(fname, "r"); 217 if (!f) { 218 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname); 219 return -1; 220 } 221 222 while (fgets(buf, sizeof(buf), f)) { 223 line++; 224 225 if (buf[0] == '#') 226 continue; 227 pos = buf; 228 while (*pos != '\0') { 229 if (*pos == '\n') { 230 *pos = '\0'; 231 break; 232 } 233 pos++; 234 } 235 if (buf[0] == '\0') 236 continue; 237 238 if (hwaddr_aton(buf, addr)) { 239 wpa_printf(MSG_ERROR, "Invalid MAC address '%s' on " 240 "line %d in '%s'", buf, line, fname); 241 ret = -1; 242 break; 243 } 244 245 psk = os_zalloc(sizeof(*psk)); 246 if (psk == NULL) { 247 wpa_printf(MSG_ERROR, "WPA PSK allocation failed"); 248 ret = -1; 249 break; 250 } 251 if (is_zero_ether_addr(addr)) 252 psk->group = 1; 253 else 254 os_memcpy(psk->addr, addr, ETH_ALEN); 255 256 pos = buf + 17; 257 if (*pos == '\0') { 258 wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'", 259 line, fname); 260 os_free(psk); 261 ret = -1; 262 break; 263 } 264 pos++; 265 266 ok = 0; 267 len = os_strlen(pos); 268 if (len == 64 && hexstr2bin(pos, psk->psk, PMK_LEN) == 0) 269 ok = 1; 270 else if (len >= 8 && len < 64) { 271 pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len, 272 4096, psk->psk, PMK_LEN); 273 ok = 1; 274 } 275 if (!ok) { 276 wpa_printf(MSG_ERROR, "Invalid PSK '%s' on line %d in " 277 "'%s'", pos, line, fname); 278 os_free(psk); 279 ret = -1; 280 break; 281 } 282 283 psk->next = ssid->wpa_psk; 284 ssid->wpa_psk = psk; 285 } 286 287 fclose(f); 288 289 return ret; 290} 291 292 293static int hostapd_derive_psk(struct hostapd_ssid *ssid) 294{ 295 ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk)); 296 if (ssid->wpa_psk == NULL) { 297 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK"); 298 return -1; 299 } 300 wpa_hexdump_ascii(MSG_DEBUG, "SSID", 301 (u8 *) ssid->ssid, ssid->ssid_len); 302 wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)", 303 (u8 *) ssid->wpa_passphrase, 304 os_strlen(ssid->wpa_passphrase)); 305 pbkdf2_sha1(ssid->wpa_passphrase, 306 ssid->ssid, ssid->ssid_len, 307 4096, ssid->wpa_psk->psk, PMK_LEN); 308 wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)", 309 ssid->wpa_psk->psk, PMK_LEN); 310 return 0; 311} 312 313 314int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf) 315{ 316 struct hostapd_ssid *ssid = &conf->ssid; 317 318 if (ssid->wpa_passphrase != NULL) { 319 if (ssid->wpa_psk != NULL) { 320 wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK " 321 "instead of passphrase"); 322 } else { 323 wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on " 324 "passphrase"); 325 if (hostapd_derive_psk(ssid) < 0) 326 return -1; 327 } 328 ssid->wpa_psk->group = 1; 329 } 330 331 if (ssid->wpa_psk_file) { 332 if (hostapd_config_read_wpa_psk(ssid->wpa_psk_file, 333 &conf->ssid)) 334 return -1; 335 } 336 337 return 0; 338} 339 340 341static void hostapd_config_free_radius(struct hostapd_radius_server *servers, 342 int num_servers) 343{ 344 int i; 345 346 for (i = 0; i < num_servers; i++) { 347 os_free(servers[i].shared_secret); 348 } 349 os_free(servers); 350} 351 352 353struct hostapd_radius_attr * 354hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type) 355{ 356 for (; attr; attr = attr->next) { 357 if (attr->type == type) 358 return attr; 359 } 360 return NULL; 361} 362 363 364static void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr) 365{ 366 struct hostapd_radius_attr *prev; 367 368 while (attr) { 369 prev = attr; 370 attr = attr->next; 371 wpabuf_free(prev->val); 372 os_free(prev); 373 } 374} 375 376 377void hostapd_config_free_eap_user(struct hostapd_eap_user *user) 378{ 379 hostapd_config_free_radius_attr(user->accept_attr); 380 os_free(user->identity); 381 os_free(user->password); 382 os_free(user); 383} 384 385 386static void hostapd_config_free_wep(struct hostapd_wep_keys *keys) 387{ 388 int i; 389 for (i = 0; i < NUM_WEP_KEYS; i++) { 390 os_free(keys->key[i]); 391 keys->key[i] = NULL; 392 } 393} 394 395 396void hostapd_config_free_bss(struct hostapd_bss_config *conf) 397{ 398 struct hostapd_wpa_psk *psk, *prev; 399 struct hostapd_eap_user *user, *prev_user; 400 401 if (conf == NULL) 402 return; 403 404 psk = conf->ssid.wpa_psk; 405 while (psk) { 406 prev = psk; 407 psk = psk->next; 408 os_free(prev); 409 } 410 411 os_free(conf->ssid.wpa_passphrase); 412 os_free(conf->ssid.wpa_psk_file); 413 hostapd_config_free_wep(&conf->ssid.wep); 414#ifdef CONFIG_FULL_DYNAMIC_VLAN 415 os_free(conf->ssid.vlan_tagged_interface); 416#endif /* CONFIG_FULL_DYNAMIC_VLAN */ 417 418 user = conf->eap_user; 419 while (user) { 420 prev_user = user; 421 user = user->next; 422 hostapd_config_free_eap_user(prev_user); 423 } 424 os_free(conf->eap_user_sqlite); 425 426 os_free(conf->eap_req_id_text); 427 os_free(conf->accept_mac); 428 os_free(conf->deny_mac); 429 os_free(conf->nas_identifier); 430 if (conf->radius) { 431 hostapd_config_free_radius(conf->radius->auth_servers, 432 conf->radius->num_auth_servers); 433 hostapd_config_free_radius(conf->radius->acct_servers, 434 conf->radius->num_acct_servers); 435 } 436 hostapd_config_free_radius_attr(conf->radius_auth_req_attr); 437 hostapd_config_free_radius_attr(conf->radius_acct_req_attr); 438 os_free(conf->rsn_preauth_interfaces); 439 os_free(conf->ctrl_interface); 440 os_free(conf->ca_cert); 441 os_free(conf->server_cert); 442 os_free(conf->private_key); 443 os_free(conf->private_key_passwd); 444 os_free(conf->ocsp_stapling_response); 445 os_free(conf->dh_file); 446 os_free(conf->pac_opaque_encr_key); 447 os_free(conf->eap_fast_a_id); 448 os_free(conf->eap_fast_a_id_info); 449 os_free(conf->eap_sim_db); 450 os_free(conf->radius_server_clients); 451 os_free(conf->test_socket); 452 os_free(conf->radius); 453 os_free(conf->radius_das_shared_secret); 454 hostapd_config_free_vlan(conf); 455 os_free(conf->time_zone); 456 457#ifdef CONFIG_IEEE80211R 458 { 459 struct ft_remote_r0kh *r0kh, *r0kh_prev; 460 struct ft_remote_r1kh *r1kh, *r1kh_prev; 461 462 r0kh = conf->r0kh_list; 463 conf->r0kh_list = NULL; 464 while (r0kh) { 465 r0kh_prev = r0kh; 466 r0kh = r0kh->next; 467 os_free(r0kh_prev); 468 } 469 470 r1kh = conf->r1kh_list; 471 conf->r1kh_list = NULL; 472 while (r1kh) { 473 r1kh_prev = r1kh; 474 r1kh = r1kh->next; 475 os_free(r1kh_prev); 476 } 477 } 478#endif /* CONFIG_IEEE80211R */ 479 480#ifdef CONFIG_WPS 481 os_free(conf->wps_pin_requests); 482 os_free(conf->device_name); 483 os_free(conf->manufacturer); 484 os_free(conf->model_name); 485 os_free(conf->model_number); 486 os_free(conf->serial_number); 487 os_free(conf->config_methods); 488 os_free(conf->ap_pin); 489 os_free(conf->extra_cred); 490 os_free(conf->ap_settings); 491 os_free(conf->upnp_iface); 492 os_free(conf->friendly_name); 493 os_free(conf->manufacturer_url); 494 os_free(conf->model_description); 495 os_free(conf->model_url); 496 os_free(conf->upc); 497 wpabuf_free(conf->wps_nfc_dh_pubkey); 498 wpabuf_free(conf->wps_nfc_dh_privkey); 499 wpabuf_free(conf->wps_nfc_dev_pw); 500#endif /* CONFIG_WPS */ 501 502 os_free(conf->roaming_consortium); 503 os_free(conf->venue_name); 504 os_free(conf->nai_realm_data); 505 os_free(conf->network_auth_type); 506 os_free(conf->anqp_3gpp_cell_net); 507 os_free(conf->domain_name); 508 509#ifdef CONFIG_RADIUS_TEST 510 os_free(conf->dump_msk_file); 511#endif /* CONFIG_RADIUS_TEST */ 512 513#ifdef CONFIG_HS20 514 os_free(conf->hs20_oper_friendly_name); 515 os_free(conf->hs20_wan_metrics); 516 os_free(conf->hs20_connection_capability); 517 os_free(conf->hs20_operating_class); 518 os_free(conf->hs20_icons); 519 if (conf->hs20_osu_providers) { 520 size_t i; 521 for (i = 0; i < conf->hs20_osu_providers_count; i++) { 522 struct hs20_osu_provider *p; 523 size_t j; 524 p = &conf->hs20_osu_providers[i]; 525 os_free(p->friendly_name); 526 os_free(p->server_uri); 527 os_free(p->method_list); 528 for (j = 0; j < p->icons_count; j++) 529 os_free(p->icons[j]); 530 os_free(p->icons); 531 os_free(p->osu_nai); 532 os_free(p->service_desc); 533 } 534 os_free(conf->hs20_osu_providers); 535 } 536 os_free(conf->subscr_remediation_url); 537#endif /* CONFIG_HS20 */ 538 539 wpabuf_free(conf->vendor_elements); 540 541 os_free(conf->sae_groups); 542 543 os_free(conf->server_id); 544 545 os_free(conf); 546} 547 548 549/** 550 * hostapd_config_free - Free hostapd configuration 551 * @conf: Configuration data from hostapd_config_read(). 552 */ 553void hostapd_config_free(struct hostapd_config *conf) 554{ 555 size_t i; 556 557 if (conf == NULL) 558 return; 559 560 for (i = 0; i < conf->num_bss; i++) 561 hostapd_config_free_bss(conf->bss[i]); 562 os_free(conf->bss); 563 os_free(conf->supported_rates); 564 os_free(conf->basic_rates); 565 os_free(conf->chanlist); 566 567 os_free(conf); 568} 569 570 571/** 572 * hostapd_maclist_found - Find a MAC address from a list 573 * @list: MAC address list 574 * @num_entries: Number of addresses in the list 575 * @addr: Address to search for 576 * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed 577 * Returns: 1 if address is in the list or 0 if not. 578 * 579 * Perform a binary search for given MAC address from a pre-sorted list. 580 */ 581int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries, 582 const u8 *addr, int *vlan_id) 583{ 584 int start, end, middle, res; 585 586 start = 0; 587 end = num_entries - 1; 588 589 while (start <= end) { 590 middle = (start + end) / 2; 591 res = os_memcmp(list[middle].addr, addr, ETH_ALEN); 592 if (res == 0) { 593 if (vlan_id) 594 *vlan_id = list[middle].vlan_id; 595 return 1; 596 } 597 if (res < 0) 598 start = middle + 1; 599 else 600 end = middle - 1; 601 } 602 603 return 0; 604} 605 606 607int hostapd_rate_found(int *list, int rate) 608{ 609 int i; 610 611 if (list == NULL) 612 return 0; 613 614 for (i = 0; list[i] >= 0; i++) 615 if (list[i] == rate) 616 return 1; 617 618 return 0; 619} 620 621 622int hostapd_vlan_id_valid(struct hostapd_vlan *vlan, int vlan_id) 623{ 624 struct hostapd_vlan *v = vlan; 625 while (v) { 626 if (v->vlan_id == vlan_id || v->vlan_id == VLAN_ID_WILDCARD) 627 return 1; 628 v = v->next; 629 } 630 return 0; 631} 632 633 634const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id) 635{ 636 struct hostapd_vlan *v = vlan; 637 while (v) { 638 if (v->vlan_id == vlan_id) 639 return v->ifname; 640 v = v->next; 641 } 642 return NULL; 643} 644 645 646const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf, 647 const u8 *addr, const u8 *p2p_dev_addr, 648 const u8 *prev_psk) 649{ 650 struct hostapd_wpa_psk *psk; 651 int next_ok = prev_psk == NULL; 652 653 if (p2p_dev_addr) { 654 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR 655 " p2p_dev_addr=" MACSTR " prev_psk=%p", 656 MAC2STR(addr), MAC2STR(p2p_dev_addr), prev_psk); 657 if (!is_zero_ether_addr(p2p_dev_addr)) 658 addr = NULL; /* Use P2P Device Address for matching */ 659 } else { 660 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR 661 " prev_psk=%p", 662 MAC2STR(addr), prev_psk); 663 } 664 665 for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) { 666 if (next_ok && 667 (psk->group || 668 (addr && os_memcmp(psk->addr, addr, ETH_ALEN) == 0) || 669 (!addr && p2p_dev_addr && 670 os_memcmp(psk->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) == 671 0))) 672 return psk->psk; 673 674 if (psk->psk == prev_psk) 675 next_ok = 1; 676 } 677 678 return NULL; 679} 680 681 682static int hostapd_config_check_bss(struct hostapd_bss_config *bss, 683 struct hostapd_config *conf, 684 int full_config) 685{ 686 if (full_config && bss->ieee802_1x && !bss->eap_server && 687 !bss->radius->auth_servers) { 688 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no " 689 "EAP authenticator configured)."); 690 return -1; 691 } 692 693 if (bss->wpa) { 694 int wep, i; 695 696 wep = bss->default_wep_key_len > 0 || 697 bss->individual_wep_key_len > 0; 698 for (i = 0; i < NUM_WEP_KEYS; i++) { 699 if (bss->ssid.wep.keys_set) { 700 wep = 1; 701 break; 702 } 703 } 704 705 if (wep) { 706 wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported"); 707 return -1; 708 } 709 } 710 711 if (full_config && bss->wpa && 712 bss->wpa_psk_radius != PSK_RADIUS_IGNORED && 713 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) { 714 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no " 715 "RADIUS checking (macaddr_acl=2) enabled."); 716 return -1; 717 } 718 719 if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) && 720 bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL && 721 bss->ssid.wpa_psk_file == NULL && 722 (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED || 723 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) { 724 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase " 725 "is not configured."); 726 return -1; 727 } 728 729 if (full_config && hostapd_mac_comp_empty(bss->bssid) != 0) { 730 size_t i; 731 732 for (i = 0; i < conf->num_bss; i++) { 733 if (conf->bss[i] != bss && 734 (hostapd_mac_comp(conf->bss[i]->bssid, 735 bss->bssid) == 0)) { 736 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR 737 " on interface '%s' and '%s'.", 738 MAC2STR(bss->bssid), 739 conf->bss[i]->iface, bss->iface); 740 return -1; 741 } 742 } 743 } 744 745#ifdef CONFIG_IEEE80211R 746 if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) && 747 (bss->nas_identifier == NULL || 748 os_strlen(bss->nas_identifier) < 1 || 749 os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) { 750 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires " 751 "nas_identifier to be configured as a 1..48 octet " 752 "string"); 753 return -1; 754 } 755#endif /* CONFIG_IEEE80211R */ 756 757#ifdef CONFIG_IEEE80211N 758 if (full_config && conf->ieee80211n && 759 conf->hw_mode == HOSTAPD_MODE_IEEE80211B) { 760 bss->disable_11n = 1; 761 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not " 762 "allowed, disabling HT capabilites"); 763 } 764 765 if (full_config && conf->ieee80211n && 766 bss->ssid.security_policy == SECURITY_STATIC_WEP) { 767 bss->disable_11n = 1; 768 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not " 769 "allowed, disabling HT capabilities"); 770 } 771 772 if (full_config && conf->ieee80211n && bss->wpa && 773 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) && 774 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | 775 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256))) 776 { 777 bss->disable_11n = 1; 778 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 " 779 "requires CCMP/GCMP to be enabled, disabling HT " 780 "capabilities"); 781 } 782#endif /* CONFIG_IEEE80211N */ 783 784#ifdef CONFIG_WPS2 785 if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) { 786 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid " 787 "configuration forced WPS to be disabled"); 788 bss->wps_state = 0; 789 } 790 791 if (full_config && bss->wps_state && 792 bss->ssid.wep.keys_set && bss->wpa == 0) { 793 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be " 794 "disabled"); 795 bss->wps_state = 0; 796 } 797 798 if (full_config && bss->wps_state && bss->wpa && 799 (!(bss->wpa & 2) || 800 !(bss->rsn_pairwise & WPA_CIPHER_CCMP))) { 801 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without " 802 "WPA2/CCMP forced WPS to be disabled"); 803 bss->wps_state = 0; 804 } 805#endif /* CONFIG_WPS2 */ 806 807#ifdef CONFIG_HS20 808 if (full_config && bss->hs20 && 809 (!(bss->wpa & 2) || 810 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | 811 WPA_CIPHER_CCMP_256 | 812 WPA_CIPHER_GCMP_256)))) { 813 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP " 814 "configuration is required for Hotspot 2.0 " 815 "functionality"); 816 return -1; 817 } 818#endif /* CONFIG_HS20 */ 819 820 return 0; 821} 822 823 824int hostapd_config_check(struct hostapd_config *conf, int full_config) 825{ 826 size_t i; 827 828 if (full_config && conf->ieee80211d && 829 (!conf->country[0] || !conf->country[1])) { 830 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without " 831 "setting the country_code"); 832 return -1; 833 } 834 835 if (full_config && conf->ieee80211h && !conf->ieee80211d) { 836 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without " 837 "IEEE 802.11d enabled"); 838 return -1; 839 } 840 841 if (full_config && conf->local_pwr_constraint != -1 && 842 !conf->ieee80211d) { 843 wpa_printf(MSG_ERROR, "Cannot add Power Constraint element without Country element"); 844 return -1; 845 } 846 847 if (full_config && conf->spectrum_mgmt_required && 848 conf->local_pwr_constraint == -1) { 849 wpa_printf(MSG_ERROR, "Cannot set Spectrum Management bit without Country and Power Constraint elements"); 850 return -1; 851 } 852 853 for (i = 0; i < conf->num_bss; i++) { 854 if (hostapd_config_check_bss(conf->bss[i], conf, full_config)) 855 return -1; 856 } 857 858 return 0; 859} 860 861 862void hostapd_set_security_params(struct hostapd_bss_config *bss) 863{ 864 if (bss->individual_wep_key_len == 0) { 865 /* individual keys are not use; can use key idx0 for 866 * broadcast keys */ 867 bss->broadcast_key_idx_min = 0; 868 } 869 870 if ((bss->wpa & 2) && bss->rsn_pairwise == 0) 871 bss->rsn_pairwise = bss->wpa_pairwise; 872 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise, 873 bss->rsn_pairwise); 874 875 bss->radius->auth_server = bss->radius->auth_servers; 876 bss->radius->acct_server = bss->radius->acct_servers; 877 878 if (bss->wpa && bss->ieee802_1x) { 879 bss->ssid.security_policy = SECURITY_WPA; 880 } else if (bss->wpa) { 881 bss->ssid.security_policy = SECURITY_WPA_PSK; 882 } else if (bss->ieee802_1x) { 883 int cipher = WPA_CIPHER_NONE; 884 bss->ssid.security_policy = SECURITY_IEEE_802_1X; 885 bss->ssid.wep.default_len = bss->default_wep_key_len; 886 if (bss->default_wep_key_len) 887 cipher = bss->default_wep_key_len >= 13 ? 888 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40; 889 bss->wpa_group = cipher; 890 bss->wpa_pairwise = cipher; 891 bss->rsn_pairwise = cipher; 892 } else if (bss->ssid.wep.keys_set) { 893 int cipher = WPA_CIPHER_WEP40; 894 if (bss->ssid.wep.len[0] >= 13) 895 cipher = WPA_CIPHER_WEP104; 896 bss->ssid.security_policy = SECURITY_STATIC_WEP; 897 bss->wpa_group = cipher; 898 bss->wpa_pairwise = cipher; 899 bss->rsn_pairwise = cipher; 900 } else if (bss->osen) { 901 bss->ssid.security_policy = SECURITY_OSEN; 902 bss->wpa_group = WPA_CIPHER_CCMP; 903 bss->wpa_pairwise = 0; 904 bss->rsn_pairwise = WPA_CIPHER_CCMP; 905 } else { 906 bss->ssid.security_policy = SECURITY_PLAINTEXT; 907 bss->wpa_group = WPA_CIPHER_NONE; 908 bss->wpa_pairwise = WPA_CIPHER_NONE; 909 bss->rsn_pairwise = WPA_CIPHER_NONE; 910 } 911} 912