1 /* 2 * hostapd / WPS integration 3 * Copyright (c) 2008-2016, 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 "utils/eloop.h" 13 #include "utils/uuid.h" 14 #include "common/wpa_ctrl.h" 15 #include "common/ieee802_11_defs.h" 16 #include "common/ieee802_11_common.h" 17 #include "eapol_auth/eapol_auth_sm.h" 18 #include "eapol_auth/eapol_auth_sm_i.h" 19 #include "wps/wps.h" 20 #include "wps/wps_defs.h" 21 #include "wps/wps_dev_attr.h" 22 #include "wps/wps_attr_parse.h" 23 #include "hostapd.h" 24 #include "ap_config.h" 25 #include "ap_drv_ops.h" 26 #include "beacon.h" 27 #include "sta_info.h" 28 #include "wps_hostapd.h" 29 30 31 #ifdef CONFIG_WPS_UPNP 32 #include "wps/wps_upnp.h" 33 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 34 struct wps_context *wps); 35 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd); 36 #endif /* CONFIG_WPS_UPNP */ 37 38 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da, 39 const u8 *bssid, 40 const u8 *ie, size_t ie_len, 41 int ssi_signal); 42 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx); 43 static void hostapd_wps_nfc_clear(struct wps_context *wps); 44 45 46 struct wps_for_each_data { 47 int (*func)(struct hostapd_data *h, void *ctx); 48 void *ctx; 49 struct hostapd_data *calling_hapd; 50 }; 51 52 53 static int wps_for_each(struct hostapd_iface *iface, void *ctx) 54 { 55 struct wps_for_each_data *data = ctx; 56 size_t j; 57 58 if (iface == NULL) 59 return 0; 60 for (j = 0; j < iface->num_bss; j++) { 61 struct hostapd_data *hapd = iface->bss[j]; 62 int ret; 63 64 if (hapd != data->calling_hapd && 65 (hapd->conf->wps_independent || 66 data->calling_hapd->conf->wps_independent)) 67 continue; 68 69 ret = data->func(hapd, data->ctx); 70 if (ret) 71 return ret; 72 } 73 74 return 0; 75 } 76 77 78 static int hostapd_wps_for_each(struct hostapd_data *hapd, 79 int (*func)(struct hostapd_data *h, void *ctx), 80 void *ctx) 81 { 82 struct hostapd_iface *iface = hapd->iface; 83 struct wps_for_each_data data; 84 data.func = func; 85 data.ctx = ctx; 86 data.calling_hapd = hapd; 87 if (iface->interfaces == NULL || 88 iface->interfaces->for_each_interface == NULL) 89 return wps_for_each(iface, &data); 90 return iface->interfaces->for_each_interface(iface->interfaces, 91 wps_for_each, &data); 92 } 93 94 95 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, 96 const u8 *p2p_dev_addr, const u8 *psk, 97 size_t psk_len) 98 { 99 struct hostapd_data *hapd = ctx; 100 struct hostapd_wpa_psk *p; 101 struct hostapd_ssid *ssid = &hapd->conf->ssid; 102 103 if (is_zero_ether_addr(p2p_dev_addr)) { 104 wpa_printf(MSG_DEBUG, 105 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, 106 MAC2STR(mac_addr)); 107 } else { 108 wpa_printf(MSG_DEBUG, 109 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR 110 " P2P Device Addr " MACSTR, 111 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); 112 } 113 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 114 115 if (psk_len != PMK_LEN) { 116 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu", 117 (unsigned long) psk_len); 118 return -1; 119 } 120 121 /* Add the new PSK to runtime PSK list */ 122 p = os_zalloc(sizeof(*p)); 123 if (p == NULL) 124 return -1; 125 os_memcpy(p->addr, mac_addr, ETH_ALEN); 126 os_memcpy(p->p2p_dev_addr, p2p_dev_addr, ETH_ALEN); 127 os_memcpy(p->psk, psk, PMK_LEN); 128 p->wps = 1; 129 130 if (hapd->new_psk_cb) { 131 hapd->new_psk_cb(hapd->new_psk_cb_ctx, mac_addr, p2p_dev_addr, 132 psk, psk_len); 133 } 134 135 p->next = ssid->wpa_psk; 136 ssid->wpa_psk = p; 137 138 if (ssid->wpa_psk_file) { 139 FILE *f; 140 char hex[PMK_LEN * 2 + 1]; 141 142 /* Add the new PSK to PSK list file */ 143 f = fopen(ssid->wpa_psk_file, "a"); 144 if (!f) { 145 wpa_printf(MSG_DEBUG, "Failed to add the PSK to '%s'", 146 ssid->wpa_psk_file); 147 return -1; 148 } 149 150 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len); 151 fprintf(f, "wps=1 " MACSTR " %s\n", MAC2STR(mac_addr), hex); 152 fclose(f); 153 } 154 155 return 0; 156 } 157 158 159 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie, 160 struct wpabuf *probe_resp_ie) 161 { 162 struct hostapd_data *hapd = ctx; 163 wpabuf_free(hapd->wps_beacon_ie); 164 hapd->wps_beacon_ie = beacon_ie; 165 wpabuf_free(hapd->wps_probe_resp_ie); 166 hapd->wps_probe_resp_ie = probe_resp_ie; 167 if (hapd->beacon_set_done) 168 ieee802_11_set_beacon(hapd); 169 return hostapd_set_ap_wps_ie(hapd); 170 } 171 172 173 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 174 const struct wps_device_data *dev) 175 { 176 struct hostapd_data *hapd = ctx; 177 char uuid[40], txt[400]; 178 int len; 179 char devtype[WPS_DEV_TYPE_BUFSIZE]; 180 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 181 return; 182 wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid); 183 len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED 184 "%s " MACSTR " [%s|%s|%s|%s|%s|%s]", 185 uuid, MAC2STR(dev->mac_addr), dev->device_name, 186 dev->manufacturer, dev->model_name, 187 dev->model_number, dev->serial_number, 188 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 189 sizeof(devtype))); 190 if (!os_snprintf_error(sizeof(txt), len)) 191 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt); 192 193 if (hapd->conf->wps_pin_requests) { 194 FILE *f; 195 struct os_time t; 196 f = fopen(hapd->conf->wps_pin_requests, "a"); 197 if (f == NULL) 198 return; 199 os_get_time(&t); 200 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s" 201 "\t%s\n", 202 t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name, 203 dev->manufacturer, dev->model_name, dev->model_number, 204 dev->serial_number, 205 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 206 sizeof(devtype))); 207 fclose(f); 208 } 209 } 210 211 212 struct wps_stop_reg_data { 213 struct hostapd_data *current_hapd; 214 const u8 *uuid_e; 215 const u8 *dev_pw; 216 size_t dev_pw_len; 217 }; 218 219 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx) 220 { 221 struct wps_stop_reg_data *data = ctx; 222 if (hapd != data->current_hapd && hapd->wps != NULL) 223 wps_registrar_complete(hapd->wps->registrar, data->uuid_e, 224 data->dev_pw, data->dev_pw_len); 225 return 0; 226 } 227 228 229 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr, 230 const u8 *uuid_e, const u8 *dev_pw, 231 size_t dev_pw_len) 232 { 233 struct hostapd_data *hapd = ctx; 234 char uuid[40]; 235 struct wps_stop_reg_data data; 236 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 237 return; 238 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s", 239 MAC2STR(mac_addr), uuid); 240 if (hapd->wps_reg_success_cb) 241 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx, 242 mac_addr, uuid_e); 243 data.current_hapd = hapd; 244 data.uuid_e = uuid_e; 245 data.dev_pw = dev_pw; 246 data.dev_pw_len = dev_pw_len; 247 hostapd_wps_for_each(hapd, wps_stop_registrar, &data); 248 } 249 250 251 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr, 252 const u8 *uuid_e, 253 const u8 *pri_dev_type, 254 u16 config_methods, 255 u16 dev_password_id, u8 request_type, 256 const char *dev_name) 257 { 258 struct hostapd_data *hapd = ctx; 259 char uuid[40]; 260 char devtype[WPS_DEV_TYPE_BUFSIZE]; 261 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 262 return; 263 if (dev_name == NULL) 264 dev_name = ""; 265 wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR 266 " %s %s 0x%x %u %u [%s]", 267 MAC2STR(addr), uuid, 268 wps_dev_type_bin2str(pri_dev_type, devtype, 269 sizeof(devtype)), 270 config_methods, dev_password_id, request_type, dev_name); 271 } 272 273 274 static int hostapd_wps_lookup_pskfile_cb(void *ctx, const u8 *mac_addr, 275 const u8 **psk) 276 { 277 const struct hostapd_data *hapd = ctx; 278 const struct hostapd_wpa_psk *wpa_psk; 279 const u8 *any_psk = NULL; 280 const u8 *dev_psk = NULL; 281 282 for (wpa_psk = hapd->conf->ssid.wpa_psk; wpa_psk; 283 wpa_psk = wpa_psk->next) { 284 if (!wpa_psk->wps) 285 continue; 286 287 if (!any_psk && is_zero_ether_addr(wpa_psk->addr)) 288 any_psk = wpa_psk->psk; 289 290 if (mac_addr && !dev_psk && 291 os_memcmp(mac_addr, wpa_psk->addr, ETH_ALEN) == 0) { 292 dev_psk = wpa_psk->psk; 293 break; 294 } 295 } 296 297 if (dev_psk) { 298 *psk = dev_psk; 299 } else if (any_psk) { 300 *psk = any_psk; 301 } else { 302 *psk = NULL; 303 wpa_printf(MSG_DEBUG, 304 "WPS: No appropriate PSK in wpa_psk_file"); 305 return 0; 306 } 307 308 return 1; 309 } 310 311 312 static void wps_reload_config(void *eloop_data, void *user_ctx) 313 { 314 struct hostapd_iface *iface = eloop_data; 315 316 wpa_printf(MSG_DEBUG, "WPS: Reload configuration data"); 317 if (iface->interfaces == NULL || 318 iface->interfaces->reload_config(iface) < 0) { 319 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated " 320 "configuration"); 321 } 322 } 323 324 325 void hostapd_wps_eap_completed(struct hostapd_data *hapd) 326 { 327 /* 328 * Reduce race condition of the station trying to reconnect immediately 329 * after AP reconfiguration through WPS by rescheduling the reload 330 * timeout to happen after EAP completion rather than the originally 331 * scheduled 100 ms after new configuration became known. 332 */ 333 if (eloop_deplete_timeout(0, 0, wps_reload_config, hapd->iface, NULL) == 334 1) 335 wpa_printf(MSG_DEBUG, "WPS: Reschedule immediate configuration reload"); 336 } 337 338 339 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr, 340 size_t attr_len) 341 { 342 size_t blen = attr_len * 2 + 1; 343 char *buf = os_malloc(blen); 344 if (buf) { 345 wpa_snprintf_hex(buf, blen, attr, attr_len); 346 wpa_msg(hapd->msg_ctx, MSG_INFO, 347 WPS_EVENT_NEW_AP_SETTINGS "%s", buf); 348 os_free(buf); 349 } 350 } 351 352 353 static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd, 354 const struct wps_credential *cred) 355 { 356 struct hostapd_bss_config *bss = hapd->conf; 357 358 wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration"); 359 360 bss->wps_state = 2; 361 if (cred->ssid_len <= SSID_MAX_LEN) { 362 os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len); 363 bss->ssid.ssid_len = cred->ssid_len; 364 bss->ssid.ssid_set = 1; 365 } 366 367 #ifdef CONFIG_NO_TKIP 368 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK | 369 WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) 370 bss->wpa = 2; 371 else 372 bss->wpa = 0; 373 #else /* CONFIG_NO_TKIP */ 374 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) && 375 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))) 376 bss->wpa = 3; 377 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) 378 bss->wpa = 2; 379 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) 380 bss->wpa = 1; 381 else 382 bss->wpa = 0; 383 #endif /* CONFIG_NO_TKIP */ 384 385 if (bss->wpa) { 386 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) 387 bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X; 388 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) 389 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK; 390 391 bss->wpa_pairwise = 0; 392 if (cred->encr_type & WPS_ENCR_AES) { 393 if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD) 394 bss->wpa_pairwise |= WPA_CIPHER_GCMP; 395 else 396 bss->wpa_pairwise |= WPA_CIPHER_CCMP; 397 } 398 #ifndef CONFIG_NO_TKIP 399 if (cred->encr_type & WPS_ENCR_TKIP) 400 bss->wpa_pairwise |= WPA_CIPHER_TKIP; 401 #endif /* CONFIG_NO_TKIP */ 402 bss->rsn_pairwise = bss->wpa_pairwise; 403 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, 404 bss->wpa_pairwise, 405 bss->rsn_pairwise); 406 407 if (hapd->conf->wps_cred_add_sae && 408 (cred->auth_type & WPS_AUTH_WPA2PSK) && 409 cred->key_len != 2 * PMK_LEN) { 410 bss->wpa_key_mgmt |= WPA_KEY_MGMT_SAE; 411 if (bss->ieee80211w == NO_MGMT_FRAME_PROTECTION) 412 bss->ieee80211w = 413 MGMT_FRAME_PROTECTION_OPTIONAL; 414 bss->sae_require_mfp = 1; 415 } 416 417 if (cred->key_len >= 8 && cred->key_len < 64) { 418 os_free(bss->ssid.wpa_passphrase); 419 bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1); 420 if (bss->ssid.wpa_passphrase) 421 os_memcpy(bss->ssid.wpa_passphrase, cred->key, 422 cred->key_len); 423 hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk); 424 } else if (cred->key_len == 64) { 425 hostapd_config_clear_wpa_psk(&bss->ssid.wpa_psk); 426 bss->ssid.wpa_psk = 427 os_zalloc(sizeof(struct hostapd_wpa_psk)); 428 if (bss->ssid.wpa_psk && 429 hexstr2bin((const char *) cred->key, 430 bss->ssid.wpa_psk->psk, PMK_LEN) == 0) { 431 bss->ssid.wpa_psk->group = 1; 432 os_free(bss->ssid.wpa_passphrase); 433 bss->ssid.wpa_passphrase = NULL; 434 } 435 } 436 bss->auth_algs = 1; 437 } else { 438 /* 439 * WPS 2.0 does not allow WEP to be configured, so no need to 440 * process that option here either. 441 */ 442 bss->auth_algs = 1; 443 } 444 445 /* Schedule configuration reload after short period of time to allow 446 * EAP-WSC to be finished. 447 */ 448 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface, 449 NULL); 450 451 return 0; 452 } 453 454 455 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx) 456 { 457 const struct wps_credential *cred = ctx; 458 FILE *oconf, *nconf; 459 size_t len, i; 460 char *tmp_fname; 461 char buf[1024]; 462 int multi_bss; 463 int wpa; 464 int pmf_changed = 0; 465 466 if (hapd->wps == NULL) 467 return 0; 468 469 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 470 cred->cred_attr, cred->cred_attr_len); 471 472 wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings"); 473 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 474 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 475 cred->auth_type); 476 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 477 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 478 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 479 cred->key, cred->key_len); 480 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 481 MAC2STR(cred->mac_addr)); 482 483 if ((hapd->conf->wps_cred_processing == 1 || 484 hapd->conf->wps_cred_processing == 2) && cred->cred_attr) { 485 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len); 486 } else if (hapd->conf->wps_cred_processing == 1 || 487 hapd->conf->wps_cred_processing == 2) { 488 struct wpabuf *attr; 489 attr = wpabuf_alloc(200); 490 if (attr && wps_build_credential_wrap(attr, cred) == 0) 491 hapd_new_ap_event(hapd, wpabuf_head_u8(attr), 492 wpabuf_len(attr)); 493 wpabuf_free(attr); 494 } else 495 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS); 496 497 if (hapd->conf->wps_cred_processing == 1) 498 return 0; 499 500 os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len); 501 hapd->wps->ssid_len = cred->ssid_len; 502 hapd->wps->encr_types = cred->encr_type; 503 hapd->wps->encr_types_rsn = cred->encr_type; 504 hapd->wps->encr_types_wpa = cred->encr_type; 505 hapd->wps->auth_types = cred->auth_type; 506 hapd->wps->ap_encr_type = cred->encr_type; 507 hapd->wps->ap_auth_type = cred->auth_type; 508 if (cred->key_len == 0) { 509 os_free(hapd->wps->network_key); 510 hapd->wps->network_key = NULL; 511 hapd->wps->network_key_len = 0; 512 } else if ((cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) && 513 (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN)) { 514 wpa_printf(MSG_INFO, "WPS: Invalid key length %lu for WPA/WPA2", 515 (unsigned long) cred->key_len); 516 return -1; 517 } else { 518 if (hapd->wps->network_key == NULL || 519 hapd->wps->network_key_len < cred->key_len) { 520 hapd->wps->network_key_len = 0; 521 os_free(hapd->wps->network_key); 522 hapd->wps->network_key = os_malloc(cred->key_len); 523 if (hapd->wps->network_key == NULL) 524 return -1; 525 } 526 hapd->wps->network_key_len = cred->key_len; 527 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len); 528 } 529 hapd->wps->wps_state = WPS_STATE_CONFIGURED; 530 531 if (hapd->iface->config_fname == NULL) 532 return hapd_wps_reconfig_in_memory(hapd, cred); 533 len = os_strlen(hapd->iface->config_fname) + 5; 534 tmp_fname = os_malloc(len); 535 if (tmp_fname == NULL) 536 return -1; 537 os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname); 538 539 oconf = fopen(hapd->iface->config_fname, "r"); 540 if (oconf == NULL) { 541 wpa_printf(MSG_WARNING, "WPS: Could not open current " 542 "configuration file"); 543 os_free(tmp_fname); 544 return -1; 545 } 546 547 nconf = fopen(tmp_fname, "w"); 548 if (nconf == NULL) { 549 wpa_printf(MSG_WARNING, "WPS: Could not write updated " 550 "configuration file"); 551 os_free(tmp_fname); 552 fclose(oconf); 553 return -1; 554 } 555 556 fprintf(nconf, "# WPS configuration - START\n"); 557 558 fprintf(nconf, "wps_state=2\n"); 559 560 if (is_hex(cred->ssid, cred->ssid_len)) { 561 fprintf(nconf, "ssid2="); 562 for (i = 0; i < cred->ssid_len; i++) 563 fprintf(nconf, "%02x", cred->ssid[i]); 564 fprintf(nconf, "\n"); 565 } else { 566 fprintf(nconf, "ssid="); 567 for (i = 0; i < cred->ssid_len; i++) 568 fputc(cred->ssid[i], nconf); 569 fprintf(nconf, "\n"); 570 } 571 572 #ifdef CONFIG_NO_TKIP 573 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK | 574 WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) 575 wpa = 2; 576 else 577 wpa = 0; 578 #else /* CONFIG_NO_TKIP */ 579 if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) && 580 (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))) 581 wpa = 3; 582 else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) 583 wpa = 2; 584 else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)) 585 wpa = 1; 586 else 587 wpa = 0; 588 #endif /* CONFIG_NO_TKIP */ 589 590 if (wpa) { 591 char *prefix; 592 int sae = 0; 593 594 fprintf(nconf, "wpa=%d\n", wpa); 595 596 fprintf(nconf, "wpa_key_mgmt="); 597 prefix = ""; 598 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) { 599 fprintf(nconf, "WPA-EAP"); 600 prefix = " "; 601 } 602 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK)) { 603 fprintf(nconf, "%sWPA-PSK", prefix); 604 prefix = " "; 605 } 606 if (hapd->conf->wps_cred_add_sae && 607 (cred->auth_type & WPS_AUTH_WPA2PSK) && 608 cred->key_len != 2 * PMK_LEN) { 609 fprintf(nconf, "%sSAE", prefix); 610 sae = 1; 611 } 612 fprintf(nconf, "\n"); 613 614 if (sae && hapd->conf->ieee80211w == NO_MGMT_FRAME_PROTECTION) { 615 fprintf(nconf, "ieee80211w=%d\n", 616 MGMT_FRAME_PROTECTION_OPTIONAL); 617 pmf_changed = 1; 618 } 619 if (sae) 620 fprintf(nconf, "sae_require_mfp=1\n"); 621 622 fprintf(nconf, "wpa_pairwise="); 623 prefix = ""; 624 if (cred->encr_type & WPS_ENCR_AES) { 625 if (hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD) 626 fprintf(nconf, "GCMP"); 627 else 628 fprintf(nconf, "CCMP"); 629 630 prefix = " "; 631 } 632 #ifndef CONFIG_NO_TKIP 633 if (cred->encr_type & WPS_ENCR_TKIP) { 634 fprintf(nconf, "%sTKIP", prefix); 635 } 636 #endif /* CONFIG_NO_TKIP */ 637 fprintf(nconf, "\n"); 638 639 if (cred->key_len >= 8 && cred->key_len < 64) { 640 fprintf(nconf, "wpa_passphrase="); 641 for (i = 0; i < cred->key_len; i++) 642 fputc(cred->key[i], nconf); 643 fprintf(nconf, "\n"); 644 } else if (cred->key_len == 64) { 645 fprintf(nconf, "wpa_psk="); 646 for (i = 0; i < cred->key_len; i++) 647 fputc(cred->key[i], nconf); 648 fprintf(nconf, "\n"); 649 } else { 650 wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu " 651 "for WPA/WPA2", 652 (unsigned long) cred->key_len); 653 } 654 655 fprintf(nconf, "auth_algs=1\n"); 656 } else { 657 /* 658 * WPS 2.0 does not allow WEP to be configured, so no need to 659 * process that option here either. 660 */ 661 fprintf(nconf, "auth_algs=1\n"); 662 } 663 664 fprintf(nconf, "# WPS configuration - END\n"); 665 666 multi_bss = 0; 667 while (fgets(buf, sizeof(buf), oconf)) { 668 if (os_strncmp(buf, "bss=", 4) == 0) 669 multi_bss = 1; 670 if (!multi_bss && 671 (str_starts(buf, "ssid=") || 672 str_starts(buf, "ssid2=") || 673 str_starts(buf, "auth_algs=") || 674 #ifdef CONFIG_WEP 675 str_starts(buf, "wep_default_key=") || 676 str_starts(buf, "wep_key") || 677 #endif /* CONFIG_WEP */ 678 str_starts(buf, "wps_state=") || 679 (pmf_changed && str_starts(buf, "ieee80211w=")) || 680 str_starts(buf, "wpa=") || 681 str_starts(buf, "wpa_psk=") || 682 str_starts(buf, "wpa_pairwise=") || 683 str_starts(buf, "rsn_pairwise=") || 684 str_starts(buf, "wpa_key_mgmt=") || 685 str_starts(buf, "wpa_passphrase="))) { 686 fprintf(nconf, "#WPS# %s", buf); 687 } else 688 fprintf(nconf, "%s", buf); 689 } 690 691 fclose(nconf); 692 fclose(oconf); 693 694 if (rename(tmp_fname, hapd->iface->config_fname) < 0) { 695 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated " 696 "configuration file: %s", strerror(errno)); 697 os_free(tmp_fname); 698 return -1; 699 } 700 701 os_free(tmp_fname); 702 703 /* Schedule configuration reload after short period of time to allow 704 * EAP-WSC to be finished. 705 */ 706 eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface, 707 NULL); 708 709 wpa_printf(MSG_DEBUG, "WPS: AP configuration updated"); 710 711 return 0; 712 } 713 714 715 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred) 716 { 717 struct hostapd_data *hapd = ctx; 718 return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred); 719 } 720 721 722 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx) 723 { 724 struct hostapd_data *hapd = eloop_data; 725 726 if (hapd->conf->ap_setup_locked) 727 return; 728 if (hapd->ap_pin_failures_consecutive >= 10) 729 return; 730 731 wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN"); 732 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 733 hapd->wps->ap_setup_locked = 0; 734 wps_registrar_update_ie(hapd->wps->registrar); 735 } 736 737 738 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx) 739 { 740 struct wps_event_pwd_auth_fail *data = ctx; 741 742 if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL) 743 return 0; 744 745 /* 746 * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup 747 * for some time if this happens multiple times to slow down brute 748 * force attacks. 749 */ 750 hapd->ap_pin_failures++; 751 hapd->ap_pin_failures_consecutive++; 752 wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u " 753 "(%u consecutive)", 754 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive); 755 if (hapd->ap_pin_failures < 3) 756 return 0; 757 758 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED); 759 hapd->wps->ap_setup_locked = 1; 760 761 wps_registrar_update_ie(hapd->wps->registrar); 762 763 if (!hapd->conf->ap_setup_locked && 764 hapd->ap_pin_failures_consecutive >= 10) { 765 /* 766 * In indefinite lockdown - disable automatic AP PIN 767 * reenablement. 768 */ 769 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 770 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely"); 771 } else if (!hapd->conf->ap_setup_locked) { 772 if (hapd->ap_pin_lockout_time == 0) 773 hapd->ap_pin_lockout_time = 60; 774 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 && 775 (hapd->ap_pin_failures % 3) == 0) 776 hapd->ap_pin_lockout_time *= 2; 777 778 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds", 779 hapd->ap_pin_lockout_time); 780 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 781 eloop_register_timeout(hapd->ap_pin_lockout_time, 0, 782 hostapd_wps_reenable_ap_pin, hapd, 783 NULL); 784 } 785 786 return 0; 787 } 788 789 790 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd, 791 struct wps_event_pwd_auth_fail *data) 792 { 793 /* Update WPS Status - Authentication Failure */ 794 wpa_printf(MSG_DEBUG, "WPS: Authentication failure update"); 795 hapd->wps_stats.status = WPS_STATUS_FAILURE; 796 hapd->wps_stats.failure_reason = WPS_EI_AUTH_FAILURE; 797 os_memcpy(hapd->wps_stats.peer_addr, data->peer_macaddr, ETH_ALEN); 798 799 hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data); 800 } 801 802 803 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx) 804 { 805 if (hapd->conf->ap_pin == NULL || hapd->wps == NULL) 806 return 0; 807 808 if (hapd->ap_pin_failures_consecutive == 0) 809 return 0; 810 811 wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter " 812 "- total validation failures %u (%u consecutive)", 813 hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive); 814 hapd->ap_pin_failures_consecutive = 0; 815 816 return 0; 817 } 818 819 820 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd) 821 { 822 hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL); 823 } 824 825 826 static void hostapd_wps_event_pbc_overlap(struct hostapd_data *hapd) 827 { 828 /* Update WPS Status - PBC Overlap */ 829 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_OVERLAP; 830 } 831 832 833 static void hostapd_wps_event_pbc_timeout(struct hostapd_data *hapd) 834 { 835 /* Update WPS PBC Status:PBC Timeout */ 836 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_TIMEOUT; 837 } 838 839 840 static void hostapd_wps_event_pbc_active(struct hostapd_data *hapd) 841 { 842 /* Update WPS PBC status - Active */ 843 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_ACTIVE; 844 } 845 846 847 static void hostapd_wps_event_pbc_disable(struct hostapd_data *hapd) 848 { 849 /* Update WPS PBC status - Active */ 850 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE; 851 } 852 853 854 static void hostapd_wps_event_success(struct hostapd_data *hapd, 855 struct wps_event_success *success) 856 { 857 /* Update WPS status - Success */ 858 hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE; 859 hapd->wps_stats.status = WPS_STATUS_SUCCESS; 860 os_memcpy(hapd->wps_stats.peer_addr, success->peer_macaddr, ETH_ALEN); 861 } 862 863 864 static void hostapd_wps_event_fail(struct hostapd_data *hapd, 865 struct wps_event_fail *fail) 866 { 867 /* Update WPS status - Failure */ 868 hapd->wps_stats.status = WPS_STATUS_FAILURE; 869 os_memcpy(hapd->wps_stats.peer_addr, fail->peer_macaddr, ETH_ALEN); 870 871 hapd->wps_stats.failure_reason = fail->error_indication; 872 873 if (fail->error_indication > 0 && 874 fail->error_indication < NUM_WPS_EI_VALUES) { 875 wpa_msg(hapd->msg_ctx, MSG_INFO, 876 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 877 fail->msg, fail->config_error, fail->error_indication, 878 wps_ei_str(fail->error_indication)); 879 } else { 880 wpa_msg(hapd->msg_ctx, MSG_INFO, 881 WPS_EVENT_FAIL "msg=%d config_error=%d", 882 fail->msg, fail->config_error); 883 } 884 } 885 886 887 static void hostapd_wps_event_cb(void *ctx, enum wps_event event, 888 union wps_event_data *data) 889 { 890 struct hostapd_data *hapd = ctx; 891 892 switch (event) { 893 case WPS_EV_M2D: 894 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D); 895 break; 896 case WPS_EV_FAIL: 897 hostapd_wps_event_fail(hapd, &data->fail); 898 break; 899 case WPS_EV_SUCCESS: 900 hostapd_wps_event_success(hapd, &data->success); 901 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS); 902 break; 903 case WPS_EV_PWD_AUTH_FAIL: 904 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail); 905 break; 906 case WPS_EV_PBC_OVERLAP: 907 hostapd_wps_event_pbc_overlap(hapd); 908 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP); 909 break; 910 case WPS_EV_PBC_TIMEOUT: 911 hostapd_wps_event_pbc_timeout(hapd); 912 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT); 913 break; 914 case WPS_EV_PBC_ACTIVE: 915 hostapd_wps_event_pbc_active(hapd); 916 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ACTIVE); 917 break; 918 case WPS_EV_PBC_DISABLE: 919 hostapd_wps_event_pbc_disable(hapd); 920 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_DISABLE); 921 break; 922 case WPS_EV_ER_AP_ADD: 923 break; 924 case WPS_EV_ER_AP_REMOVE: 925 break; 926 case WPS_EV_ER_ENROLLEE_ADD: 927 break; 928 case WPS_EV_ER_ENROLLEE_REMOVE: 929 break; 930 case WPS_EV_ER_AP_SETTINGS: 931 break; 932 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 933 break; 934 case WPS_EV_AP_PIN_SUCCESS: 935 hostapd_wps_ap_pin_success(hapd); 936 break; 937 } 938 if (hapd->wps_event_cb) 939 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data); 940 } 941 942 943 static int hostapd_wps_rf_band_cb(void *ctx) 944 { 945 struct hostapd_data *hapd = ctx; 946 947 return hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ? 948 WPS_RF_50GHZ : 949 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ? 950 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */ 951 } 952 953 954 static void hostapd_wps_clear_ies(struct hostapd_data *hapd, int deinit_only) 955 { 956 wpabuf_free(hapd->wps_beacon_ie); 957 hapd->wps_beacon_ie = NULL; 958 959 wpabuf_free(hapd->wps_probe_resp_ie); 960 hapd->wps_probe_resp_ie = NULL; 961 962 if (deinit_only) { 963 if (hapd->drv_priv) 964 hostapd_reset_ap_wps_ie(hapd); 965 return; 966 } 967 968 hostapd_set_ap_wps_ie(hapd); 969 } 970 971 972 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx) 973 { 974 const u8 **uuid = ctx; 975 size_t j; 976 977 if (iface == NULL) 978 return 0; 979 for (j = 0; j < iface->num_bss; j++) { 980 struct hostapd_data *hapd = iface->bss[j]; 981 if (hapd->wps && !hapd->conf->wps_independent && 982 !is_nil_uuid(hapd->wps->uuid)) { 983 *uuid = hapd->wps->uuid; 984 return 1; 985 } 986 } 987 988 return 0; 989 } 990 991 992 static const u8 * get_own_uuid(struct hostapd_iface *iface) 993 { 994 const u8 *uuid; 995 if (iface->interfaces == NULL || 996 iface->interfaces->for_each_interface == NULL) 997 return NULL; 998 uuid = NULL; 999 iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb, 1000 &uuid); 1001 return uuid; 1002 } 1003 1004 1005 static int count_interface_cb(struct hostapd_iface *iface, void *ctx) 1006 { 1007 int *count= ctx; 1008 (*count)++; 1009 return 0; 1010 } 1011 1012 1013 static int interface_count(struct hostapd_iface *iface) 1014 { 1015 int count = 0; 1016 if (iface->interfaces == NULL || 1017 iface->interfaces->for_each_interface == NULL) 1018 return 0; 1019 iface->interfaces->for_each_interface(iface->interfaces, 1020 count_interface_cb, &count); 1021 return count; 1022 } 1023 1024 1025 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd, 1026 struct wps_context *wps) 1027 { 1028 int i; 1029 1030 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) { 1031 wpabuf_free(wps->dev.vendor_ext[i]); 1032 wps->dev.vendor_ext[i] = NULL; 1033 1034 if (hapd->conf->wps_vendor_ext[i] == NULL) 1035 continue; 1036 1037 wps->dev.vendor_ext[i] = 1038 wpabuf_dup(hapd->conf->wps_vendor_ext[i]); 1039 if (wps->dev.vendor_ext[i] == NULL) { 1040 while (--i >= 0) 1041 wpabuf_free(wps->dev.vendor_ext[i]); 1042 return -1; 1043 } 1044 } 1045 1046 return 0; 1047 } 1048 1049 1050 static int hostapd_wps_set_application_ext(struct hostapd_data *hapd, 1051 struct wps_context *wps) 1052 { 1053 wpabuf_free(wps->dev.application_ext); 1054 1055 if (!hapd->conf->wps_application_ext) { 1056 wps->dev.application_ext = NULL; 1057 return 0; 1058 } 1059 1060 wps->dev.application_ext = wpabuf_dup(hapd->conf->wps_application_ext); 1061 return wps->dev.application_ext ? 0 : -1; 1062 } 1063 1064 1065 static void hostapd_free_wps(struct wps_context *wps) 1066 { 1067 int i; 1068 1069 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) 1070 wpabuf_free(wps->dev.vendor_ext[i]); 1071 wps_device_data_free(&wps->dev); 1072 os_free(wps->network_key); 1073 hostapd_wps_nfc_clear(wps); 1074 wpabuf_free(wps->dh_pubkey); 1075 wpabuf_free(wps->dh_privkey); 1076 os_free(wps); 1077 } 1078 1079 1080 int hostapd_init_wps(struct hostapd_data *hapd, 1081 struct hostapd_bss_config *conf) 1082 { 1083 struct wps_context *wps; 1084 struct wps_registrar_config cfg; 1085 u8 *multi_ap_netw_key = NULL; 1086 1087 if (conf->wps_state == 0) { 1088 hostapd_wps_clear_ies(hapd, 0); 1089 return 0; 1090 } 1091 1092 wps = os_zalloc(sizeof(*wps)); 1093 if (wps == NULL) 1094 return -1; 1095 1096 wps->cred_cb = hostapd_wps_cred_cb; 1097 wps->event_cb = hostapd_wps_event_cb; 1098 wps->rf_band_cb = hostapd_wps_rf_band_cb; 1099 wps->cb_ctx = hapd; 1100 1101 os_memset(&cfg, 0, sizeof(cfg)); 1102 wps->wps_state = hapd->conf->wps_state; 1103 wps->ap_setup_locked = hapd->conf->ap_setup_locked; 1104 if (is_nil_uuid(hapd->conf->uuid)) { 1105 const u8 *uuid; 1106 uuid = get_own_uuid(hapd->iface); 1107 if (uuid && !conf->wps_independent) { 1108 os_memcpy(wps->uuid, uuid, UUID_LEN); 1109 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another " 1110 "interface", wps->uuid, UUID_LEN); 1111 } else { 1112 uuid_gen_mac_addr(hapd->own_addr, wps->uuid); 1113 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC " 1114 "address", wps->uuid, UUID_LEN); 1115 } 1116 } else { 1117 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN); 1118 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID", 1119 wps->uuid, UUID_LEN); 1120 } 1121 wps->ssid_len = hapd->conf->ssid.ssid_len; 1122 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len); 1123 wps->ap = 1; 1124 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN); 1125 wps->dev.device_name = hapd->conf->device_name ? 1126 os_strdup(hapd->conf->device_name) : NULL; 1127 wps->dev.manufacturer = hapd->conf->manufacturer ? 1128 os_strdup(hapd->conf->manufacturer) : NULL; 1129 wps->dev.model_name = hapd->conf->model_name ? 1130 os_strdup(hapd->conf->model_name) : NULL; 1131 wps->dev.model_number = hapd->conf->model_number ? 1132 os_strdup(hapd->conf->model_number) : NULL; 1133 wps->dev.serial_number = hapd->conf->serial_number ? 1134 os_strdup(hapd->conf->serial_number) : NULL; 1135 wps->config_methods = 1136 wps_config_methods_str2bin(hapd->conf->config_methods); 1137 if ((wps->config_methods & 1138 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1139 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1140 wpa_printf(MSG_INFO, "WPS: Converting display to " 1141 "virtual_display for WPS 2.0 compliance"); 1142 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1143 } 1144 if ((wps->config_methods & 1145 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1146 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1147 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1148 "virtual_push_button for WPS 2.0 compliance"); 1149 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1150 } 1151 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type, 1152 WPS_DEV_TYPE_LEN); 1153 1154 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0 || 1155 hostapd_wps_set_application_ext(hapd, wps) < 0) 1156 goto fail; 1157 1158 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version); 1159 1160 if (conf->wps_rf_bands) { 1161 wps->dev.rf_bands = conf->wps_rf_bands; 1162 } else { 1163 wps->dev.rf_bands = 1164 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ? 1165 WPS_RF_50GHZ : 1166 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ? 1167 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */ 1168 } 1169 1170 if (conf->wpa & WPA_PROTO_RSN) { 1171 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 1172 wps->auth_types |= WPS_AUTH_WPA2PSK; 1173 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 1174 wps->auth_types |= WPS_AUTH_WPA2; 1175 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) 1176 wps->auth_types |= WPS_AUTH_WPA2PSK; 1177 1178 if (conf->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | 1179 WPA_CIPHER_CCMP_256 | 1180 WPA_CIPHER_GCMP_256)) { 1181 wps->encr_types |= WPS_ENCR_AES; 1182 wps->encr_types_rsn |= WPS_ENCR_AES; 1183 } 1184 if (conf->rsn_pairwise & WPA_CIPHER_TKIP) { 1185 #ifdef CONFIG_NO_TKIP 1186 wpa_printf(MSG_INFO, "WPS: TKIP not supported"); 1187 goto fail; 1188 #else /* CONFIG_NO_TKIP */ 1189 wps->encr_types |= WPS_ENCR_TKIP; 1190 wps->encr_types_rsn |= WPS_ENCR_TKIP; 1191 #endif /* CONFIG_NO_TKIP */ 1192 } 1193 } 1194 1195 if (conf->wpa & WPA_PROTO_WPA) { 1196 #ifdef CONFIG_NO_TKIP 1197 if (!(conf->wpa & WPA_PROTO_RSN)) { 1198 wpa_printf(MSG_INFO, "WPS: WPA(v1) not supported"); 1199 goto fail; 1200 } 1201 conf->wpa &= ~WPA_PROTO_WPA; 1202 #else /* CONFIG_NO_TKIP */ 1203 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 1204 wps->auth_types |= WPS_AUTH_WPAPSK; 1205 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 1206 wps->auth_types |= WPS_AUTH_WPA; 1207 1208 if (conf->wpa_pairwise & WPA_CIPHER_CCMP) { 1209 wps->encr_types |= WPS_ENCR_AES; 1210 wps->encr_types_wpa |= WPS_ENCR_AES; 1211 } 1212 if (conf->wpa_pairwise & WPA_CIPHER_TKIP) { 1213 wps->encr_types |= WPS_ENCR_TKIP; 1214 wps->encr_types_wpa |= WPS_ENCR_TKIP; 1215 } 1216 #endif /* CONFIG_NO_TKIP */ 1217 } 1218 1219 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) { 1220 wps->encr_types |= WPS_ENCR_NONE; 1221 wps->auth_types |= WPS_AUTH_OPEN; 1222 } 1223 1224 if (conf->ssid.wpa_psk_file) { 1225 /* Use per-device PSKs */ 1226 } else if (conf->ssid.wpa_passphrase) { 1227 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); 1228 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); 1229 } else if (conf->ssid.wpa_psk) { 1230 wps->network_key = os_malloc(2 * PMK_LEN + 1); 1231 if (wps->network_key == NULL) 1232 goto fail; 1233 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, 1234 conf->ssid.wpa_psk->psk, PMK_LEN); 1235 wps->network_key_len = 2 * PMK_LEN; 1236 #ifdef CONFIG_WEP 1237 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { 1238 wps->network_key = os_malloc(conf->ssid.wep.len[0]); 1239 if (wps->network_key == NULL) 1240 goto fail; 1241 os_memcpy(wps->network_key, conf->ssid.wep.key[0], 1242 conf->ssid.wep.len[0]); 1243 wps->network_key_len = conf->ssid.wep.len[0]; 1244 #endif /* CONFIG_WEP */ 1245 } 1246 1247 if (conf->ssid.wpa_psk) { 1248 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN); 1249 wps->psk_set = 1; 1250 } 1251 1252 wps->ap_auth_type = wps->auth_types; 1253 wps->ap_encr_type = wps->encr_types; 1254 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) { 1255 /* Override parameters to enable security by default */ 1256 #ifdef CONFIG_NO_TKIP 1257 wps->auth_types = WPS_AUTH_WPA2PSK; 1258 wps->encr_types = WPS_ENCR_AES; 1259 wps->encr_types_rsn = WPS_ENCR_AES; 1260 wps->encr_types_wpa = WPS_ENCR_AES; 1261 #else /* CONFIG_NO_TKIP */ 1262 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1263 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1264 wps->encr_types_rsn = WPS_ENCR_AES | WPS_ENCR_TKIP; 1265 wps->encr_types_wpa = WPS_ENCR_AES | WPS_ENCR_TKIP; 1266 #endif /* CONFIG_NO_TKIP */ 1267 } 1268 1269 if ((hapd->conf->multi_ap & FRONTHAUL_BSS) && 1270 hapd->conf->multi_ap_backhaul_ssid.ssid_len) { 1271 cfg.multi_ap_backhaul_ssid_len = 1272 hapd->conf->multi_ap_backhaul_ssid.ssid_len; 1273 cfg.multi_ap_backhaul_ssid = 1274 hapd->conf->multi_ap_backhaul_ssid.ssid; 1275 1276 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) { 1277 cfg.multi_ap_backhaul_network_key = (const u8 *) 1278 conf->multi_ap_backhaul_ssid.wpa_passphrase; 1279 cfg.multi_ap_backhaul_network_key_len = 1280 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase); 1281 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) { 1282 multi_ap_netw_key = os_malloc(2 * PMK_LEN + 1); 1283 if (!multi_ap_netw_key) 1284 goto fail; 1285 wpa_snprintf_hex((char *) multi_ap_netw_key, 1286 2 * PMK_LEN + 1, 1287 conf->multi_ap_backhaul_ssid.wpa_psk->psk, 1288 PMK_LEN); 1289 cfg.multi_ap_backhaul_network_key = multi_ap_netw_key; 1290 cfg.multi_ap_backhaul_network_key_len = 2 * PMK_LEN; 1291 } 1292 } 1293 1294 wps->ap_settings = conf->ap_settings; 1295 wps->ap_settings_len = conf->ap_settings_len; 1296 1297 cfg.new_psk_cb = hostapd_wps_new_psk_cb; 1298 cfg.set_ie_cb = hostapd_wps_set_ie_cb; 1299 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb; 1300 cfg.reg_success_cb = hostapd_wps_reg_success_cb; 1301 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb; 1302 cfg.lookup_pskfile_cb = hostapd_wps_lookup_pskfile_cb; 1303 cfg.cb_ctx = hapd; 1304 cfg.skip_cred_build = conf->skip_cred_build; 1305 cfg.extra_cred = conf->extra_cred; 1306 cfg.extra_cred_len = conf->extra_cred_len; 1307 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) && 1308 conf->skip_cred_build; 1309 cfg.dualband = interface_count(hapd->iface) > 1; 1310 if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) == 1311 (WPS_RF_50GHZ | WPS_RF_24GHZ)) 1312 cfg.dualband = 1; 1313 if (cfg.dualband) 1314 wpa_printf(MSG_DEBUG, "WPS: Dualband AP"); 1315 cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk; 1316 1317 wps->registrar = wps_registrar_init(wps, &cfg); 1318 if (wps->registrar == NULL) { 1319 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar"); 1320 goto fail; 1321 } 1322 1323 #ifdef CONFIG_WPS_UPNP 1324 wps->friendly_name = hapd->conf->friendly_name; 1325 wps->manufacturer_url = hapd->conf->manufacturer_url; 1326 wps->model_description = hapd->conf->model_description; 1327 wps->model_url = hapd->conf->model_url; 1328 wps->upc = hapd->conf->upc; 1329 #endif /* CONFIG_WPS_UPNP */ 1330 1331 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd); 1332 1333 #ifdef CONFIG_P2P 1334 if ((hapd->conf->p2p & P2P_ENABLED) && 1335 is_6ghz_op_class(hapd->iconf->op_class)) 1336 wps->use_passphrase = true; 1337 #endif /* CONFIG_P2P */ 1338 hapd->wps = wps; 1339 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN); 1340 1341 return 0; 1342 1343 fail: 1344 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN); 1345 hostapd_free_wps(wps); 1346 return -1; 1347 } 1348 1349 1350 int hostapd_init_wps_complete(struct hostapd_data *hapd) 1351 { 1352 struct wps_context *wps = hapd->wps; 1353 1354 if (wps == NULL) 1355 return 0; 1356 1357 #ifdef CONFIG_WPS_UPNP 1358 if (hostapd_wps_upnp_init(hapd, wps) < 0) { 1359 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP"); 1360 wps_registrar_deinit(wps->registrar); 1361 hostapd_free_wps(wps); 1362 hapd->wps = NULL; 1363 return -1; 1364 } 1365 #endif /* CONFIG_WPS_UPNP */ 1366 1367 return 0; 1368 } 1369 1370 1371 static void hostapd_wps_nfc_clear(struct wps_context *wps) 1372 { 1373 #ifdef CONFIG_WPS_NFC 1374 wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps); 1375 wps->ap_nfc_dev_pw_id = 0; 1376 wpabuf_free(wps->ap_nfc_dh_pubkey); 1377 wps->ap_nfc_dh_pubkey = NULL; 1378 wpabuf_free(wps->ap_nfc_dh_privkey); 1379 wps->ap_nfc_dh_privkey = NULL; 1380 wpabuf_free(wps->ap_nfc_dev_pw); 1381 wps->ap_nfc_dev_pw = NULL; 1382 #endif /* CONFIG_WPS_NFC */ 1383 } 1384 1385 1386 static int hostapd_wps_update_multi_ap(struct hostapd_data *hapd, 1387 struct wps_registrar *reg) 1388 { 1389 struct hostapd_bss_config *conf = hapd->conf; 1390 u8 *multi_ap_backhaul_network_key = NULL; 1391 size_t multi_ap_backhaul_network_key_len = 0; 1392 int ret; 1393 1394 if (!(conf->multi_ap & FRONTHAUL_BSS) || 1395 !conf->multi_ap_backhaul_ssid.ssid_len) 1396 return 0; 1397 1398 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) { 1399 multi_ap_backhaul_network_key = 1400 (u8 *) os_strdup( 1401 conf->multi_ap_backhaul_ssid.wpa_passphrase); 1402 if (!multi_ap_backhaul_network_key) 1403 return -1; 1404 multi_ap_backhaul_network_key_len = 1405 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase); 1406 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) { 1407 multi_ap_backhaul_network_key = os_malloc(2 * PMK_LEN + 1); 1408 if (!multi_ap_backhaul_network_key) 1409 return -1; 1410 wpa_snprintf_hex((char *) multi_ap_backhaul_network_key, 1411 2 * PMK_LEN + 1, 1412 conf->multi_ap_backhaul_ssid.wpa_psk->psk, 1413 PMK_LEN); 1414 multi_ap_backhaul_network_key_len = 2 * PMK_LEN; 1415 } 1416 1417 ret = wps_registrar_update_multi_ap( 1418 reg, conf->multi_ap_backhaul_ssid.ssid, 1419 conf->multi_ap_backhaul_ssid.ssid_len, 1420 multi_ap_backhaul_network_key, 1421 multi_ap_backhaul_network_key_len); 1422 os_free(multi_ap_backhaul_network_key); 1423 1424 return ret; 1425 } 1426 1427 1428 void hostapd_deinit_wps(struct hostapd_data *hapd) 1429 { 1430 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 1431 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1432 eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL); 1433 if (hapd->wps == NULL) { 1434 hostapd_wps_clear_ies(hapd, 1); 1435 return; 1436 } 1437 #ifdef CONFIG_WPS_UPNP 1438 hostapd_wps_upnp_deinit(hapd); 1439 #endif /* CONFIG_WPS_UPNP */ 1440 wps_registrar_deinit(hapd->wps->registrar); 1441 wps_free_pending_msgs(hapd->wps->upnp_msgs); 1442 hostapd_free_wps(hapd->wps); 1443 hapd->wps = NULL; 1444 hostapd_wps_clear_ies(hapd, 1); 1445 } 1446 1447 1448 void hostapd_update_wps(struct hostapd_data *hapd) 1449 { 1450 struct wps_context *wps = hapd->wps; 1451 struct hostapd_bss_config *conf = hapd->conf; 1452 1453 if (!wps) 1454 return; 1455 1456 #ifdef CONFIG_WPS_UPNP 1457 wps->friendly_name = conf->friendly_name; 1458 wps->manufacturer_url = conf->manufacturer_url; 1459 wps->model_description = conf->model_description; 1460 wps->model_url = conf->model_url; 1461 wps->upc = conf->upc; 1462 #endif /* CONFIG_WPS_UPNP */ 1463 1464 os_memcpy(wps->ssid, conf->ssid.ssid, conf->ssid.ssid_len); 1465 wps->ssid_len = conf->ssid.ssid_len; 1466 1467 /* Clear WPS settings, then fill them again */ 1468 os_free(wps->network_key); 1469 wps->network_key = NULL; 1470 wps->network_key_len = 0; 1471 wps->psk_set = 0; 1472 if (conf->ssid.wpa_psk_file) { 1473 /* Use per-device PSKs */ 1474 } else if (conf->ssid.wpa_passphrase) { 1475 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); 1476 if (!wps->network_key) 1477 return; 1478 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); 1479 } else if (conf->ssid.wpa_psk) { 1480 wps->network_key = os_malloc(2 * PMK_LEN + 1); 1481 if (!wps->network_key) 1482 return; 1483 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, 1484 conf->ssid.wpa_psk->psk, PMK_LEN); 1485 wps->network_key_len = 2 * PMK_LEN; 1486 #ifdef CONFIG_WEP 1487 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { 1488 wps->network_key = os_malloc(conf->ssid.wep.len[0]); 1489 if (!wps->network_key) 1490 return; 1491 os_memcpy(wps->network_key, conf->ssid.wep.key[0], 1492 conf->ssid.wep.len[0]); 1493 wps->network_key_len = conf->ssid.wep.len[0]; 1494 #endif /* CONFIG_WEP */ 1495 } 1496 1497 if (conf->ssid.wpa_psk) { 1498 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN); 1499 wps->psk_set = 1; 1500 } 1501 1502 hostapd_wps_update_multi_ap(hapd, wps->registrar); 1503 1504 hostapd_wps_set_vendor_ext(hapd, wps); 1505 hostapd_wps_set_application_ext(hapd, wps); 1506 1507 if (conf->wps_state) 1508 wps_registrar_update_ie(wps->registrar); 1509 else 1510 hostapd_deinit_wps(hapd); 1511 } 1512 1513 1514 struct wps_add_pin_data { 1515 const u8 *addr; 1516 const u8 *uuid; 1517 const u8 *pin; 1518 size_t pin_len; 1519 int timeout; 1520 int added; 1521 }; 1522 1523 1524 static int wps_add_pin(struct hostapd_data *hapd, void *ctx) 1525 { 1526 struct wps_add_pin_data *data = ctx; 1527 int ret; 1528 1529 if (hapd->wps == NULL) 1530 return 0; 1531 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr, 1532 data->uuid, data->pin, data->pin_len, 1533 data->timeout); 1534 if (ret == 0) 1535 data->added++; 1536 return ret; 1537 } 1538 1539 1540 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr, 1541 const char *uuid, const char *pin, int timeout) 1542 { 1543 u8 u[UUID_LEN]; 1544 struct wps_add_pin_data data; 1545 1546 data.addr = addr; 1547 data.uuid = u; 1548 data.pin = (const u8 *) pin; 1549 data.pin_len = os_strlen(pin); 1550 data.timeout = timeout; 1551 data.added = 0; 1552 1553 if (os_strcmp(uuid, "any") == 0) 1554 data.uuid = NULL; 1555 else { 1556 if (uuid_str2bin(uuid, u)) 1557 return -1; 1558 data.uuid = u; 1559 } 1560 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0) 1561 return -1; 1562 return data.added ? 0 : -1; 1563 } 1564 1565 1566 struct wps_button_pushed_ctx { 1567 const u8 *p2p_dev_addr; 1568 unsigned int count; 1569 }; 1570 1571 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx) 1572 { 1573 struct wps_button_pushed_ctx *data = ctx; 1574 1575 if (hapd->wps) { 1576 data->count++; 1577 return wps_registrar_button_pushed(hapd->wps->registrar, 1578 data->p2p_dev_addr); 1579 } 1580 1581 return 0; 1582 } 1583 1584 1585 int hostapd_wps_button_pushed(struct hostapd_data *hapd, 1586 const u8 *p2p_dev_addr) 1587 { 1588 struct wps_button_pushed_ctx ctx; 1589 int ret; 1590 1591 os_memset(&ctx, 0, sizeof(ctx)); 1592 ctx.p2p_dev_addr = p2p_dev_addr; 1593 ret = hostapd_wps_for_each(hapd, wps_button_pushed, &ctx); 1594 if (ret == 0 && !ctx.count) 1595 ret = -1; 1596 return ret; 1597 } 1598 1599 1600 struct wps_cancel_ctx { 1601 unsigned int count; 1602 }; 1603 1604 static int wps_cancel(struct hostapd_data *hapd, void *ctx) 1605 { 1606 struct wps_cancel_ctx *data = ctx; 1607 1608 if (hapd->wps) { 1609 data->count++; 1610 wps_registrar_wps_cancel(hapd->wps->registrar); 1611 ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL); 1612 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_CANCEL); 1613 } 1614 1615 return 0; 1616 } 1617 1618 1619 int hostapd_wps_cancel(struct hostapd_data *hapd) 1620 { 1621 struct wps_cancel_ctx ctx; 1622 int ret; 1623 1624 os_memset(&ctx, 0, sizeof(ctx)); 1625 ret = hostapd_wps_for_each(hapd, wps_cancel, &ctx); 1626 if (ret == 0 && !ctx.count) 1627 ret = -1; 1628 return ret; 1629 } 1630 1631 1632 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da, 1633 const u8 *bssid, 1634 const u8 *ie, size_t ie_len, 1635 int ssi_signal) 1636 { 1637 struct hostapd_data *hapd = ctx; 1638 struct wpabuf *wps_ie; 1639 struct ieee802_11_elems elems; 1640 1641 if (hapd->wps == NULL) 1642 return 0; 1643 1644 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) { 1645 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from " 1646 MACSTR, MAC2STR(addr)); 1647 return 0; 1648 } 1649 1650 if (elems.ssid && elems.ssid_len > 0 && 1651 (elems.ssid_len != hapd->conf->ssid.ssid_len || 1652 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) != 1653 0)) 1654 return 0; /* Not for us */ 1655 1656 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA); 1657 if (wps_ie == NULL) 1658 return 0; 1659 if (wps_validate_probe_req(wps_ie, addr) < 0) { 1660 wpabuf_free(wps_ie); 1661 return 0; 1662 } 1663 1664 if (wpabuf_len(wps_ie) > 0) { 1665 int p2p_wildcard = 0; 1666 #ifdef CONFIG_P2P 1667 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN && 1668 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, 1669 P2P_WILDCARD_SSID_LEN) == 0) 1670 p2p_wildcard = 1; 1671 #endif /* CONFIG_P2P */ 1672 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie, 1673 p2p_wildcard); 1674 #ifdef CONFIG_WPS_UPNP 1675 /* FIX: what exactly should be included in the WLANEvent? 1676 * WPS attributes? Full ProbeReq frame? */ 1677 if (!p2p_wildcard) 1678 upnp_wps_device_send_wlan_event( 1679 hapd->wps_upnp, addr, 1680 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie); 1681 #endif /* CONFIG_WPS_UPNP */ 1682 } 1683 1684 wpabuf_free(wps_ie); 1685 1686 return 0; 1687 } 1688 1689 1690 #ifdef CONFIG_WPS_UPNP 1691 1692 static int hostapd_rx_req_put_wlan_response( 1693 void *priv, enum upnp_wps_wlanevent_type ev_type, 1694 const u8 *mac_addr, const struct wpabuf *msg, 1695 enum wps_msg_type msg_type) 1696 { 1697 struct hostapd_data *hapd = priv; 1698 struct sta_info *sta; 1699 struct upnp_pending_message *p; 1700 1701 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr=" 1702 MACSTR, ev_type, MAC2STR(mac_addr)); 1703 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage", 1704 wpabuf_head(msg), wpabuf_len(msg)); 1705 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) { 1706 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected " 1707 "PutWLANResponse WLANEventType %d", ev_type); 1708 return -1; 1709 } 1710 1711 /* 1712 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC 1713 * server implementation for delivery to the peer. 1714 */ 1715 1716 sta = ap_get_sta(hapd, mac_addr); 1717 #ifndef CONFIG_WPS_STRICT 1718 if (!sta) { 1719 /* 1720 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC: 1721 * Pick STA that is in an ongoing WPS registration without 1722 * checking the MAC address. 1723 */ 1724 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based " 1725 "on NewWLANEventMAC; try wildcard match"); 1726 for (sta = hapd->sta_list; sta; sta = sta->next) { 1727 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS)) 1728 break; 1729 } 1730 } 1731 #endif /* CONFIG_WPS_STRICT */ 1732 1733 if (!sta || !(sta->flags & WLAN_STA_WPS)) { 1734 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found"); 1735 return 0; 1736 } 1737 1738 if (!sta->eapol_sm) { 1739 /* 1740 * This can happen, e.g., if an ER sends an extra message after 1741 * the station has disassociated (but not fully 1742 * deauthenticated). 1743 */ 1744 wpa_printf(MSG_DEBUG, "WPS UPnP: Matching STA did not have EAPOL state machine initialized"); 1745 return 0; 1746 } 1747 1748 p = os_zalloc(sizeof(*p)); 1749 if (p == NULL) 1750 return -1; 1751 os_memcpy(p->addr, sta->addr, ETH_ALEN); 1752 p->msg = wpabuf_dup(msg); 1753 p->type = msg_type; 1754 p->next = hapd->wps->upnp_msgs; 1755 hapd->wps->upnp_msgs = p; 1756 1757 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap); 1758 } 1759 1760 1761 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 1762 struct wps_context *wps) 1763 { 1764 struct upnp_wps_device_ctx *ctx; 1765 1766 if (!hapd->conf->upnp_iface) 1767 return 0; 1768 ctx = os_zalloc(sizeof(*ctx)); 1769 if (ctx == NULL) 1770 return -1; 1771 1772 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response; 1773 if (hapd->conf->ap_pin) 1774 ctx->ap_pin = os_strdup(hapd->conf->ap_pin); 1775 1776 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd, 1777 hapd->conf->upnp_iface); 1778 if (hapd->wps_upnp == NULL) 1779 return -1; 1780 wps->wps_upnp = hapd->wps_upnp; 1781 1782 return 0; 1783 } 1784 1785 1786 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd) 1787 { 1788 upnp_wps_device_deinit(hapd->wps_upnp, hapd); 1789 } 1790 1791 #endif /* CONFIG_WPS_UPNP */ 1792 1793 1794 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr, 1795 char *buf, size_t buflen) 1796 { 1797 if (hapd->wps == NULL) 1798 return 0; 1799 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen); 1800 } 1801 1802 1803 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 1804 { 1805 struct hostapd_data *hapd = eloop_data; 1806 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 1807 hostapd_wps_ap_pin_disable(hapd); 1808 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED); 1809 } 1810 1811 1812 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout) 1813 { 1814 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 1815 hapd->ap_pin_failures = 0; 1816 hapd->ap_pin_failures_consecutive = 0; 1817 hapd->conf->ap_setup_locked = 0; 1818 if (hapd->wps->ap_setup_locked) { 1819 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 1820 hapd->wps->ap_setup_locked = 0; 1821 wps_registrar_update_ie(hapd->wps->registrar); 1822 } 1823 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1824 if (timeout > 0) 1825 eloop_register_timeout(timeout, 0, 1826 hostapd_wps_ap_pin_timeout, hapd, NULL); 1827 } 1828 1829 1830 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx) 1831 { 1832 os_free(hapd->conf->ap_pin); 1833 hapd->conf->ap_pin = NULL; 1834 #ifdef CONFIG_WPS_UPNP 1835 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL); 1836 #endif /* CONFIG_WPS_UPNP */ 1837 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1838 return 0; 1839 } 1840 1841 1842 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd) 1843 { 1844 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 1845 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL); 1846 } 1847 1848 1849 struct wps_ap_pin_data { 1850 char pin_txt[9]; 1851 int timeout; 1852 }; 1853 1854 1855 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx) 1856 { 1857 struct wps_ap_pin_data *data = ctx; 1858 1859 if (!hapd->wps) 1860 return 0; 1861 1862 os_free(hapd->conf->ap_pin); 1863 hapd->conf->ap_pin = os_strdup(data->pin_txt); 1864 #ifdef CONFIG_WPS_UPNP 1865 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt); 1866 #endif /* CONFIG_WPS_UPNP */ 1867 hostapd_wps_ap_pin_enable(hapd, data->timeout); 1868 return 0; 1869 } 1870 1871 1872 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout) 1873 { 1874 unsigned int pin; 1875 struct wps_ap_pin_data data; 1876 1877 if (wps_generate_pin(&pin) < 0) 1878 return NULL; 1879 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin); 1880 data.timeout = timeout; 1881 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1882 return hapd->conf->ap_pin; 1883 } 1884 1885 1886 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd) 1887 { 1888 return hapd->conf->ap_pin; 1889 } 1890 1891 1892 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin, 1893 int timeout) 1894 { 1895 struct wps_ap_pin_data data; 1896 int ret; 1897 1898 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin); 1899 if (os_snprintf_error(sizeof(data.pin_txt), ret)) 1900 return -1; 1901 data.timeout = timeout; 1902 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1903 } 1904 1905 1906 static int wps_update_ie(struct hostapd_data *hapd, void *ctx) 1907 { 1908 if (hapd->wps) 1909 wps_registrar_update_ie(hapd->wps->registrar); 1910 return 0; 1911 } 1912 1913 1914 void hostapd_wps_update_ie(struct hostapd_data *hapd) 1915 { 1916 hostapd_wps_for_each(hapd, wps_update_ie, NULL); 1917 } 1918 1919 1920 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid, 1921 const char *auth, const char *encr, const char *key) 1922 { 1923 struct wps_credential cred; 1924 size_t len; 1925 1926 os_memset(&cred, 0, sizeof(cred)); 1927 1928 len = os_strlen(ssid); 1929 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 1930 hexstr2bin(ssid, cred.ssid, len / 2)) 1931 return -1; 1932 cred.ssid_len = len / 2; 1933 1934 if (os_strncmp(auth, "OPEN", 4) == 0) 1935 cred.auth_type = WPS_AUTH_OPEN; 1936 #ifndef CONFIG_NO_TKIP 1937 else if (os_strncmp(auth, "WPAPSK", 6) == 0) 1938 cred.auth_type = WPS_AUTH_WPAPSK; 1939 #endif /* CONFIG_NO_TKIP */ 1940 else if (os_strncmp(auth, "WPA2PSK", 7) == 0) 1941 cred.auth_type = WPS_AUTH_WPA2PSK; 1942 else 1943 return -1; 1944 1945 if (encr) { 1946 if (os_strncmp(encr, "NONE", 4) == 0) 1947 cred.encr_type = WPS_ENCR_NONE; 1948 #ifndef CONFIG_NO_TKIP 1949 else if (os_strncmp(encr, "TKIP", 4) == 0) 1950 cred.encr_type = WPS_ENCR_TKIP; 1951 #endif /* CONFIG_NO_TKIP */ 1952 else if (os_strncmp(encr, "CCMP", 4) == 0) 1953 cred.encr_type = WPS_ENCR_AES; 1954 else 1955 return -1; 1956 } else 1957 cred.encr_type = WPS_ENCR_NONE; 1958 1959 if (key) { 1960 len = os_strlen(key); 1961 if ((len & 1) || len > 2 * sizeof(cred.key) || 1962 hexstr2bin(key, cred.key, len / 2)) 1963 return -1; 1964 cred.key_len = len / 2; 1965 } 1966 1967 if (!hapd->wps) { 1968 wpa_printf(MSG_ERROR, "WPS: WPS config does not exist"); 1969 return -1; 1970 } 1971 1972 return wps_registrar_config_ap(hapd->wps->registrar, &cred); 1973 } 1974 1975 1976 #ifdef CONFIG_WPS_NFC 1977 1978 struct wps_nfc_password_token_data { 1979 const u8 *oob_dev_pw; 1980 size_t oob_dev_pw_len; 1981 int added; 1982 }; 1983 1984 1985 static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx) 1986 { 1987 struct wps_nfc_password_token_data *data = ctx; 1988 int ret; 1989 1990 if (hapd->wps == NULL) 1991 return 0; 1992 ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar, 1993 data->oob_dev_pw, 1994 data->oob_dev_pw_len); 1995 if (ret == 0) 1996 data->added++; 1997 return ret; 1998 } 1999 2000 2001 static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd, 2002 struct wps_parse_attr *attr) 2003 { 2004 struct wps_nfc_password_token_data data; 2005 2006 data.oob_dev_pw = attr->oob_dev_password; 2007 data.oob_dev_pw_len = attr->oob_dev_password_len; 2008 data.added = 0; 2009 if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0) 2010 return -1; 2011 return data.added ? 0 : -1; 2012 } 2013 2014 2015 static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd, 2016 const struct wpabuf *wps) 2017 { 2018 struct wps_parse_attr attr; 2019 2020 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2021 2022 if (wps_parse_msg(wps, &attr)) { 2023 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2024 return -1; 2025 } 2026 2027 if (attr.oob_dev_password) 2028 return hostapd_wps_add_nfc_password_token(hapd, &attr); 2029 2030 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2031 return -1; 2032 } 2033 2034 2035 int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd, 2036 const struct wpabuf *data) 2037 { 2038 const struct wpabuf *wps = data; 2039 struct wpabuf *tmp = NULL; 2040 int ret; 2041 2042 if (wpabuf_len(data) < 4) 2043 return -1; 2044 2045 if (*wpabuf_head_u8(data) != 0x10) { 2046 /* Assume this contains full NDEF record */ 2047 tmp = ndef_parse_wifi(data); 2048 if (tmp == NULL) { 2049 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2050 return -1; 2051 } 2052 wps = tmp; 2053 } 2054 2055 ret = hostapd_wps_nfc_tag_process(hapd, wps); 2056 wpabuf_free(tmp); 2057 return ret; 2058 } 2059 2060 2061 struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd, 2062 int ndef) 2063 { 2064 struct wpabuf *ret; 2065 2066 if (hapd->wps == NULL) 2067 return NULL; 2068 2069 ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd), 2070 hapd->iconf->channel); 2071 if (ndef && ret) { 2072 struct wpabuf *tmp; 2073 tmp = ndef_build_wifi(ret); 2074 wpabuf_free(ret); 2075 if (tmp == NULL) 2076 return NULL; 2077 ret = tmp; 2078 } 2079 2080 return ret; 2081 } 2082 2083 2084 struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef) 2085 { 2086 struct wpabuf *ret; 2087 2088 if (hapd->wps == NULL) 2089 return NULL; 2090 2091 if (hapd->conf->wps_nfc_dh_pubkey == NULL) { 2092 struct wps_context *wps = hapd->wps; 2093 if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey, 2094 &hapd->conf->wps_nfc_dh_privkey) < 0) 2095 return NULL; 2096 hostapd_wps_nfc_clear(wps); 2097 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2098 wps->ap_nfc_dh_pubkey = 2099 wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey); 2100 wps->ap_nfc_dh_privkey = 2101 wpabuf_dup(hapd->conf->wps_nfc_dh_privkey); 2102 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2103 hostapd_wps_nfc_clear(wps); 2104 return NULL; 2105 } 2106 } 2107 2108 ret = wps_build_nfc_handover_sel(hapd->wps, 2109 hapd->conf->wps_nfc_dh_pubkey, 2110 hapd->own_addr, hapd->iface->freq); 2111 2112 if (ndef && ret) { 2113 struct wpabuf *tmp; 2114 tmp = ndef_build_wifi(ret); 2115 wpabuf_free(ret); 2116 if (tmp == NULL) 2117 return NULL; 2118 ret = tmp; 2119 } 2120 2121 return ret; 2122 } 2123 2124 2125 int hostapd_wps_nfc_report_handover(struct hostapd_data *hapd, 2126 const struct wpabuf *req, 2127 const struct wpabuf *sel) 2128 { 2129 struct wpabuf *wps; 2130 int ret = -1; 2131 u16 wsc_len; 2132 const u8 *pos; 2133 struct wpabuf msg; 2134 struct wps_parse_attr attr; 2135 u16 dev_pw_id; 2136 2137 /* 2138 * Enrollee/station is always initiator of the NFC connection handover, 2139 * so use the request message here to find Enrollee public key hash. 2140 */ 2141 wps = ndef_parse_wifi(req); 2142 if (wps == NULL) 2143 return -1; 2144 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2145 "payload from NFC connection handover"); 2146 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2147 if (wpabuf_len(wps) < 2) { 2148 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2149 "Message"); 2150 goto out; 2151 } 2152 pos = wpabuf_head(wps); 2153 wsc_len = WPA_GET_BE16(pos); 2154 if (wsc_len > wpabuf_len(wps) - 2) { 2155 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2156 "in rt Wi-Fi Handover Request Message", wsc_len); 2157 goto out; 2158 } 2159 pos += 2; 2160 2161 wpa_hexdump(MSG_DEBUG, 2162 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2163 pos, wsc_len); 2164 if (wsc_len < wpabuf_len(wps) - 2) { 2165 wpa_hexdump(MSG_DEBUG, 2166 "WPS: Ignore extra data after WSC attributes", 2167 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2168 } 2169 2170 wpabuf_set(&msg, pos, wsc_len); 2171 ret = wps_parse_msg(&msg, &attr); 2172 if (ret < 0) { 2173 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2174 "Wi-Fi Handover Request Message"); 2175 goto out; 2176 } 2177 2178 if (attr.oob_dev_password == NULL || 2179 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2180 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2181 "included in Wi-Fi Handover Request Message"); 2182 ret = -1; 2183 goto out; 2184 } 2185 2186 if (attr.uuid_e == NULL) { 2187 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2188 "Handover Request Message"); 2189 ret = -1; 2190 goto out; 2191 } 2192 2193 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2194 2195 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2196 attr.oob_dev_password, attr.oob_dev_password_len); 2197 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2198 WPS_OOB_PUBKEY_HASH_LEN); 2199 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2200 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2201 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2202 ret = -1; 2203 goto out; 2204 } 2205 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2206 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2207 2208 ret = wps_registrar_add_nfc_pw_token(hapd->wps->registrar, 2209 attr.oob_dev_password, 2210 DEV_PW_NFC_CONNECTION_HANDOVER, 2211 NULL, 0, 1); 2212 2213 out: 2214 wpabuf_free(wps); 2215 return ret; 2216 } 2217 2218 2219 struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef) 2220 { 2221 if (hapd->conf->wps_nfc_pw_from_config) { 2222 return wps_nfc_token_build(ndef, 2223 hapd->conf->wps_nfc_dev_pw_id, 2224 hapd->conf->wps_nfc_dh_pubkey, 2225 hapd->conf->wps_nfc_dev_pw); 2226 } 2227 2228 return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id, 2229 &hapd->conf->wps_nfc_dh_pubkey, 2230 &hapd->conf->wps_nfc_dh_privkey, 2231 &hapd->conf->wps_nfc_dev_pw); 2232 } 2233 2234 2235 int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd) 2236 { 2237 struct wps_context *wps = hapd->wps; 2238 struct wpabuf *pw; 2239 2240 if (wps == NULL) 2241 return -1; 2242 2243 if (!hapd->conf->wps_nfc_dh_pubkey || 2244 !hapd->conf->wps_nfc_dh_privkey || 2245 !hapd->conf->wps_nfc_dev_pw || 2246 !hapd->conf->wps_nfc_dev_pw_id) 2247 return -1; 2248 2249 hostapd_wps_nfc_clear(wps); 2250 wpa_printf(MSG_DEBUG, 2251 "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)", 2252 hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps); 2253 wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id; 2254 wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey); 2255 wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey); 2256 pw = hapd->conf->wps_nfc_dev_pw; 2257 wps->ap_nfc_dev_pw = wpabuf_alloc( 2258 wpabuf_len(pw) * 2 + 1); 2259 if (wps->ap_nfc_dev_pw) { 2260 wpa_snprintf_hex_uppercase( 2261 (char *) wpabuf_put(wps->ap_nfc_dev_pw, 2262 wpabuf_len(pw) * 2), 2263 wpabuf_len(pw) * 2 + 1, 2264 wpabuf_head(pw), wpabuf_len(pw)); 2265 } 2266 2267 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey || 2268 !wps->ap_nfc_dev_pw) { 2269 hostapd_wps_nfc_clear(wps); 2270 return -1; 2271 } 2272 2273 return 0; 2274 } 2275 2276 2277 void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd) 2278 { 2279 wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s", 2280 hapd->conf->iface); 2281 hostapd_wps_nfc_clear(hapd->wps); 2282 } 2283 2284 #endif /* CONFIG_WPS_NFC */ 2285