1 /* 2 * hostapd / WPS integration 3 * Copyright (c) 2008-2016, Jouni Malinen <j (at) 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 ether_addr_equal(mac_addr, wpa_psk->addr)) { 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 bin_clear_free(wps->network_key, wps->network_key_len); 1073 hostapd_wps_nfc_clear(wps); 1074 wpabuf_free(wps->dh_pubkey); 1075 wpabuf_free(wps->dh_privkey); 1076 forced_memzero(wps->psk, sizeof(wps->psk)); 1077 os_free(wps); 1078 } 1079 1080 1081 int hostapd_init_wps(struct hostapd_data *hapd, 1082 struct hostapd_bss_config *conf) 1083 { 1084 struct wps_context *wps; 1085 struct wps_registrar_config cfg; 1086 u8 *multi_ap_netw_key = NULL; 1087 1088 if (conf->wps_state == 0) { 1089 hostapd_wps_clear_ies(hapd, 0); 1090 return 0; 1091 } 1092 1093 wps = os_zalloc(sizeof(*wps)); 1094 if (wps == NULL) 1095 return -1; 1096 1097 wps->cred_cb = hostapd_wps_cred_cb; 1098 wps->event_cb = hostapd_wps_event_cb; 1099 wps->rf_band_cb = hostapd_wps_rf_band_cb; 1100 wps->cb_ctx = hapd; 1101 1102 os_memset(&cfg, 0, sizeof(cfg)); 1103 wps->wps_state = hapd->conf->wps_state; 1104 wps->ap_setup_locked = hapd->conf->ap_setup_locked; 1105 if (is_nil_uuid(hapd->conf->uuid)) { 1106 const u8 *uuid; 1107 uuid = get_own_uuid(hapd->iface); 1108 if (uuid && !conf->wps_independent) { 1109 os_memcpy(wps->uuid, uuid, UUID_LEN); 1110 wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another " 1111 "interface", wps->uuid, UUID_LEN); 1112 } else { 1113 uuid_gen_mac_addr(hapd->own_addr, wps->uuid); 1114 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC " 1115 "address", wps->uuid, UUID_LEN); 1116 } 1117 } else { 1118 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN); 1119 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID", 1120 wps->uuid, UUID_LEN); 1121 } 1122 wps->ssid_len = hapd->conf->ssid.ssid_len; 1123 os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len); 1124 wps->ap = 1; 1125 os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN); 1126 wps->dev.device_name = hapd->conf->device_name ? 1127 os_strdup(hapd->conf->device_name) : NULL; 1128 wps->dev.manufacturer = hapd->conf->manufacturer ? 1129 os_strdup(hapd->conf->manufacturer) : NULL; 1130 wps->dev.model_name = hapd->conf->model_name ? 1131 os_strdup(hapd->conf->model_name) : NULL; 1132 wps->dev.model_number = hapd->conf->model_number ? 1133 os_strdup(hapd->conf->model_number) : NULL; 1134 wps->dev.serial_number = hapd->conf->serial_number ? 1135 os_strdup(hapd->conf->serial_number) : NULL; 1136 wps->config_methods = 1137 wps_config_methods_str2bin(hapd->conf->config_methods); 1138 if ((wps->config_methods & 1139 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1140 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1141 wpa_printf(MSG_INFO, "WPS: Converting display to " 1142 "virtual_display for WPS 2.0 compliance"); 1143 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1144 } 1145 if ((wps->config_methods & 1146 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1147 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1148 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1149 "virtual_push_button for WPS 2.0 compliance"); 1150 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1151 } 1152 os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type, 1153 WPS_DEV_TYPE_LEN); 1154 1155 if (hostapd_wps_set_vendor_ext(hapd, wps) < 0 || 1156 hostapd_wps_set_application_ext(hapd, wps) < 0) 1157 goto fail; 1158 1159 wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version); 1160 1161 if (conf->wps_rf_bands) { 1162 wps->dev.rf_bands = conf->wps_rf_bands; 1163 } else { 1164 wps->dev.rf_bands = 1165 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ? 1166 WPS_RF_50GHZ : 1167 hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211AD ? 1168 WPS_RF_60GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */ 1169 } 1170 1171 if (conf->wpa & WPA_PROTO_RSN) { 1172 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 1173 wps->auth_types |= WPS_AUTH_WPA2PSK; 1174 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 1175 wps->auth_types |= WPS_AUTH_WPA2; 1176 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) 1177 wps->auth_types |= WPS_AUTH_WPA2PSK; 1178 1179 if (conf->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | 1180 WPA_CIPHER_CCMP_256 | 1181 WPA_CIPHER_GCMP_256)) { 1182 wps->encr_types |= WPS_ENCR_AES; 1183 wps->encr_types_rsn |= WPS_ENCR_AES; 1184 } 1185 if (conf->rsn_pairwise & WPA_CIPHER_TKIP) { 1186 #ifdef CONFIG_NO_TKIP 1187 wpa_printf(MSG_INFO, "WPS: TKIP not supported"); 1188 goto fail; 1189 #else /* CONFIG_NO_TKIP */ 1190 wps->encr_types |= WPS_ENCR_TKIP; 1191 wps->encr_types_rsn |= WPS_ENCR_TKIP; 1192 #endif /* CONFIG_NO_TKIP */ 1193 } 1194 } 1195 1196 if (conf->wpa & WPA_PROTO_WPA) { 1197 #ifdef CONFIG_NO_TKIP 1198 if (!(conf->wpa & WPA_PROTO_RSN)) { 1199 wpa_printf(MSG_INFO, "WPS: WPA(v1) not supported"); 1200 goto fail; 1201 } 1202 conf->wpa &= ~WPA_PROTO_WPA; 1203 #else /* CONFIG_NO_TKIP */ 1204 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) 1205 wps->auth_types |= WPS_AUTH_WPAPSK; 1206 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) 1207 wps->auth_types |= WPS_AUTH_WPA; 1208 1209 if (conf->wpa_pairwise & WPA_CIPHER_CCMP) { 1210 wps->encr_types |= WPS_ENCR_AES; 1211 wps->encr_types_wpa |= WPS_ENCR_AES; 1212 } 1213 if (conf->wpa_pairwise & WPA_CIPHER_TKIP) { 1214 wps->encr_types |= WPS_ENCR_TKIP; 1215 wps->encr_types_wpa |= WPS_ENCR_TKIP; 1216 } 1217 #endif /* CONFIG_NO_TKIP */ 1218 } 1219 1220 if (conf->ssid.security_policy == SECURITY_PLAINTEXT) { 1221 wps->encr_types |= WPS_ENCR_NONE; 1222 wps->auth_types |= WPS_AUTH_OPEN; 1223 } 1224 1225 if (conf->ssid.wpa_psk_file) { 1226 /* Use per-device PSKs */ 1227 } else if (conf->ssid.wpa_passphrase) { 1228 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); 1229 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); 1230 } else if (conf->ssid.wpa_psk) { 1231 wps->network_key = os_malloc(2 * PMK_LEN + 1); 1232 if (wps->network_key == NULL) 1233 goto fail; 1234 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, 1235 conf->ssid.wpa_psk->psk, PMK_LEN); 1236 wps->network_key_len = 2 * PMK_LEN; 1237 #ifdef CONFIG_WEP 1238 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { 1239 wps->network_key = os_malloc(conf->ssid.wep.len[0]); 1240 if (wps->network_key == NULL) 1241 goto fail; 1242 os_memcpy(wps->network_key, conf->ssid.wep.key[0], 1243 conf->ssid.wep.len[0]); 1244 wps->network_key_len = conf->ssid.wep.len[0]; 1245 #endif /* CONFIG_WEP */ 1246 } 1247 1248 if (conf->ssid.wpa_psk) { 1249 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN); 1250 wps->psk_set = 1; 1251 } 1252 1253 wps->ap_auth_type = wps->auth_types; 1254 wps->ap_encr_type = wps->encr_types; 1255 if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) { 1256 /* Override parameters to enable security by default */ 1257 #ifdef CONFIG_NO_TKIP 1258 wps->auth_types = WPS_AUTH_WPA2PSK; 1259 wps->encr_types = WPS_ENCR_AES; 1260 wps->encr_types_rsn = WPS_ENCR_AES; 1261 wps->encr_types_wpa = WPS_ENCR_AES; 1262 #else /* CONFIG_NO_TKIP */ 1263 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1264 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1265 wps->encr_types_rsn = WPS_ENCR_AES | WPS_ENCR_TKIP; 1266 wps->encr_types_wpa = WPS_ENCR_AES | WPS_ENCR_TKIP; 1267 #endif /* CONFIG_NO_TKIP */ 1268 } 1269 1270 if ((hapd->conf->multi_ap & FRONTHAUL_BSS) && 1271 hapd->conf->multi_ap_backhaul_ssid.ssid_len) { 1272 cfg.multi_ap_backhaul_ssid_len = 1273 hapd->conf->multi_ap_backhaul_ssid.ssid_len; 1274 cfg.multi_ap_backhaul_ssid = 1275 hapd->conf->multi_ap_backhaul_ssid.ssid; 1276 1277 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) { 1278 cfg.multi_ap_backhaul_network_key = (const u8 *) 1279 conf->multi_ap_backhaul_ssid.wpa_passphrase; 1280 cfg.multi_ap_backhaul_network_key_len = 1281 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase); 1282 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) { 1283 multi_ap_netw_key = os_malloc(2 * PMK_LEN + 1); 1284 if (!multi_ap_netw_key) 1285 goto fail; 1286 wpa_snprintf_hex((char *) multi_ap_netw_key, 1287 2 * PMK_LEN + 1, 1288 conf->multi_ap_backhaul_ssid.wpa_psk->psk, 1289 PMK_LEN); 1290 cfg.multi_ap_backhaul_network_key = multi_ap_netw_key; 1291 cfg.multi_ap_backhaul_network_key_len = 2 * PMK_LEN; 1292 } 1293 } 1294 1295 wps->ap_settings = conf->ap_settings; 1296 wps->ap_settings_len = conf->ap_settings_len; 1297 1298 cfg.new_psk_cb = hostapd_wps_new_psk_cb; 1299 cfg.set_ie_cb = hostapd_wps_set_ie_cb; 1300 cfg.pin_needed_cb = hostapd_wps_pin_needed_cb; 1301 cfg.reg_success_cb = hostapd_wps_reg_success_cb; 1302 cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb; 1303 cfg.lookup_pskfile_cb = hostapd_wps_lookup_pskfile_cb; 1304 cfg.cb_ctx = hapd; 1305 cfg.skip_cred_build = conf->skip_cred_build; 1306 cfg.extra_cred = conf->extra_cred; 1307 cfg.extra_cred_len = conf->extra_cred_len; 1308 cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) && 1309 conf->skip_cred_build; 1310 cfg.dualband = interface_count(hapd->iface) > 1; 1311 if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) == 1312 (WPS_RF_50GHZ | WPS_RF_24GHZ)) 1313 cfg.dualband = 1; 1314 if (cfg.dualband) 1315 wpa_printf(MSG_DEBUG, "WPS: Dualband AP"); 1316 cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk; 1317 1318 wps->registrar = wps_registrar_init(wps, &cfg); 1319 if (wps->registrar == NULL) { 1320 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar"); 1321 goto fail; 1322 } 1323 1324 #ifdef CONFIG_WPS_UPNP 1325 wps->friendly_name = hapd->conf->friendly_name; 1326 wps->manufacturer_url = hapd->conf->manufacturer_url; 1327 wps->model_description = hapd->conf->model_description; 1328 wps->model_url = hapd->conf->model_url; 1329 wps->upc = hapd->conf->upc; 1330 #endif /* CONFIG_WPS_UPNP */ 1331 1332 hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd); 1333 1334 #ifdef CONFIG_P2P 1335 if ((hapd->conf->p2p & P2P_ENABLED) && 1336 is_6ghz_op_class(hapd->iconf->op_class)) 1337 wps->use_passphrase = true; 1338 #endif /* CONFIG_P2P */ 1339 hapd->wps = wps; 1340 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN); 1341 1342 return 0; 1343 1344 fail: 1345 bin_clear_free(multi_ap_netw_key, 2 * PMK_LEN); 1346 hostapd_free_wps(wps); 1347 return -1; 1348 } 1349 1350 1351 int hostapd_init_wps_complete(struct hostapd_data *hapd) 1352 { 1353 struct wps_context *wps = hapd->wps; 1354 1355 if (wps == NULL) 1356 return 0; 1357 1358 #ifdef CONFIG_WPS_UPNP 1359 if (hostapd_wps_upnp_init(hapd, wps) < 0) { 1360 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP"); 1361 wps_registrar_deinit(wps->registrar); 1362 hostapd_free_wps(wps); 1363 hapd->wps = NULL; 1364 return -1; 1365 } 1366 #endif /* CONFIG_WPS_UPNP */ 1367 1368 return 0; 1369 } 1370 1371 1372 static void hostapd_wps_nfc_clear(struct wps_context *wps) 1373 { 1374 #ifdef CONFIG_WPS_NFC 1375 wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps); 1376 wps->ap_nfc_dev_pw_id = 0; 1377 wpabuf_free(wps->ap_nfc_dh_pubkey); 1378 wps->ap_nfc_dh_pubkey = NULL; 1379 wpabuf_free(wps->ap_nfc_dh_privkey); 1380 wps->ap_nfc_dh_privkey = NULL; 1381 wpabuf_free(wps->ap_nfc_dev_pw); 1382 wps->ap_nfc_dev_pw = NULL; 1383 #endif /* CONFIG_WPS_NFC */ 1384 } 1385 1386 1387 static int hostapd_wps_update_multi_ap(struct hostapd_data *hapd, 1388 struct wps_registrar *reg) 1389 { 1390 struct hostapd_bss_config *conf = hapd->conf; 1391 u8 *multi_ap_backhaul_network_key = NULL; 1392 size_t multi_ap_backhaul_network_key_len = 0; 1393 int ret; 1394 1395 if (!(conf->multi_ap & FRONTHAUL_BSS) || 1396 !conf->multi_ap_backhaul_ssid.ssid_len) 1397 return 0; 1398 1399 if (conf->multi_ap_backhaul_ssid.wpa_passphrase) { 1400 multi_ap_backhaul_network_key = 1401 (u8 *) os_strdup( 1402 conf->multi_ap_backhaul_ssid.wpa_passphrase); 1403 if (!multi_ap_backhaul_network_key) 1404 return -1; 1405 multi_ap_backhaul_network_key_len = 1406 os_strlen(conf->multi_ap_backhaul_ssid.wpa_passphrase); 1407 } else if (conf->multi_ap_backhaul_ssid.wpa_psk) { 1408 multi_ap_backhaul_network_key = os_malloc(2 * PMK_LEN + 1); 1409 if (!multi_ap_backhaul_network_key) 1410 return -1; 1411 wpa_snprintf_hex((char *) multi_ap_backhaul_network_key, 1412 2 * PMK_LEN + 1, 1413 conf->multi_ap_backhaul_ssid.wpa_psk->psk, 1414 PMK_LEN); 1415 multi_ap_backhaul_network_key_len = 2 * PMK_LEN; 1416 } 1417 1418 ret = wps_registrar_update_multi_ap( 1419 reg, conf->multi_ap_backhaul_ssid.ssid, 1420 conf->multi_ap_backhaul_ssid.ssid_len, 1421 multi_ap_backhaul_network_key, 1422 multi_ap_backhaul_network_key_len); 1423 os_free(multi_ap_backhaul_network_key); 1424 1425 return ret; 1426 } 1427 1428 1429 void hostapd_deinit_wps(struct hostapd_data *hapd) 1430 { 1431 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL); 1432 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1433 eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL); 1434 if (hapd->wps == NULL) { 1435 hostapd_wps_clear_ies(hapd, 1); 1436 return; 1437 } 1438 #ifdef CONFIG_WPS_UPNP 1439 hostapd_wps_upnp_deinit(hapd); 1440 #endif /* CONFIG_WPS_UPNP */ 1441 wps_registrar_deinit(hapd->wps->registrar); 1442 wps_free_pending_msgs(hapd->wps->upnp_msgs); 1443 hostapd_free_wps(hapd->wps); 1444 hapd->wps = NULL; 1445 hostapd_wps_clear_ies(hapd, 1); 1446 } 1447 1448 1449 void hostapd_update_wps(struct hostapd_data *hapd) 1450 { 1451 struct wps_context *wps = hapd->wps; 1452 struct hostapd_bss_config *conf = hapd->conf; 1453 1454 if (!wps) 1455 return; 1456 1457 #ifdef CONFIG_WPS_UPNP 1458 wps->friendly_name = conf->friendly_name; 1459 wps->manufacturer_url = conf->manufacturer_url; 1460 wps->model_description = conf->model_description; 1461 wps->model_url = conf->model_url; 1462 wps->upc = conf->upc; 1463 #endif /* CONFIG_WPS_UPNP */ 1464 1465 os_memcpy(wps->ssid, conf->ssid.ssid, conf->ssid.ssid_len); 1466 wps->ssid_len = conf->ssid.ssid_len; 1467 1468 /* Clear WPS settings, then fill them again */ 1469 os_free(wps->network_key); 1470 wps->network_key = NULL; 1471 wps->network_key_len = 0; 1472 wps->psk_set = 0; 1473 if (conf->ssid.wpa_psk_file) { 1474 /* Use per-device PSKs */ 1475 } else if (conf->ssid.wpa_passphrase) { 1476 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase); 1477 if (!wps->network_key) 1478 return; 1479 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase); 1480 } else if (conf->ssid.wpa_psk) { 1481 wps->network_key = os_malloc(2 * PMK_LEN + 1); 1482 if (!wps->network_key) 1483 return; 1484 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1, 1485 conf->ssid.wpa_psk->psk, PMK_LEN); 1486 wps->network_key_len = 2 * PMK_LEN; 1487 #ifdef CONFIG_WEP 1488 } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) { 1489 wps->network_key = os_malloc(conf->ssid.wep.len[0]); 1490 if (!wps->network_key) 1491 return; 1492 os_memcpy(wps->network_key, conf->ssid.wep.key[0], 1493 conf->ssid.wep.len[0]); 1494 wps->network_key_len = conf->ssid.wep.len[0]; 1495 #endif /* CONFIG_WEP */ 1496 } 1497 1498 if (conf->ssid.wpa_psk) { 1499 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN); 1500 wps->psk_set = 1; 1501 } 1502 1503 hostapd_wps_update_multi_ap(hapd, wps->registrar); 1504 1505 hostapd_wps_set_vendor_ext(hapd, wps); 1506 hostapd_wps_set_application_ext(hapd, wps); 1507 1508 if (conf->wps_state) 1509 wps_registrar_update_ie(wps->registrar); 1510 else 1511 hostapd_deinit_wps(hapd); 1512 } 1513 1514 1515 struct wps_add_pin_data { 1516 const u8 *addr; 1517 const u8 *uuid; 1518 const u8 *pin; 1519 size_t pin_len; 1520 int timeout; 1521 int added; 1522 }; 1523 1524 1525 static int wps_add_pin(struct hostapd_data *hapd, void *ctx) 1526 { 1527 struct wps_add_pin_data *data = ctx; 1528 int ret; 1529 1530 if (hapd->wps == NULL) 1531 return 0; 1532 ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr, 1533 data->uuid, data->pin, data->pin_len, 1534 data->timeout); 1535 if (ret == 0) 1536 data->added++; 1537 return ret; 1538 } 1539 1540 1541 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr, 1542 const char *uuid, const char *pin, int timeout) 1543 { 1544 u8 u[UUID_LEN]; 1545 struct wps_add_pin_data data; 1546 1547 data.addr = addr; 1548 data.uuid = u; 1549 data.pin = (const u8 *) pin; 1550 data.pin_len = os_strlen(pin); 1551 data.timeout = timeout; 1552 data.added = 0; 1553 1554 if (os_strcmp(uuid, "any") == 0) 1555 data.uuid = NULL; 1556 else { 1557 if (uuid_str2bin(uuid, u)) 1558 return -1; 1559 data.uuid = u; 1560 } 1561 if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0) 1562 return -1; 1563 return data.added ? 0 : -1; 1564 } 1565 1566 1567 struct wps_button_pushed_ctx { 1568 const u8 *p2p_dev_addr; 1569 unsigned int count; 1570 }; 1571 1572 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx) 1573 { 1574 struct wps_button_pushed_ctx *data = ctx; 1575 1576 if (hapd->wps) { 1577 data->count++; 1578 return wps_registrar_button_pushed(hapd->wps->registrar, 1579 data->p2p_dev_addr); 1580 } 1581 1582 return 0; 1583 } 1584 1585 1586 int hostapd_wps_button_pushed(struct hostapd_data *hapd, 1587 const u8 *p2p_dev_addr) 1588 { 1589 struct wps_button_pushed_ctx ctx; 1590 int ret; 1591 1592 os_memset(&ctx, 0, sizeof(ctx)); 1593 ctx.p2p_dev_addr = p2p_dev_addr; 1594 ret = hostapd_wps_for_each(hapd, wps_button_pushed, &ctx); 1595 if (ret == 0 && !ctx.count) 1596 ret = -1; 1597 return ret; 1598 } 1599 1600 1601 struct wps_cancel_ctx { 1602 unsigned int count; 1603 }; 1604 1605 static int wps_cancel(struct hostapd_data *hapd, void *ctx) 1606 { 1607 struct wps_cancel_ctx *data = ctx; 1608 1609 if (hapd->wps) { 1610 data->count++; 1611 wps_registrar_wps_cancel(hapd->wps->registrar); 1612 ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL); 1613 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_CANCEL); 1614 } 1615 1616 return 0; 1617 } 1618 1619 1620 int hostapd_wps_cancel(struct hostapd_data *hapd) 1621 { 1622 struct wps_cancel_ctx ctx; 1623 int ret; 1624 1625 os_memset(&ctx, 0, sizeof(ctx)); 1626 ret = hostapd_wps_for_each(hapd, wps_cancel, &ctx); 1627 if (ret == 0 && !ctx.count) 1628 ret = -1; 1629 return ret; 1630 } 1631 1632 1633 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da, 1634 const u8 *bssid, 1635 const u8 *ie, size_t ie_len, 1636 int ssi_signal) 1637 { 1638 struct hostapd_data *hapd = ctx; 1639 struct wpabuf *wps_ie; 1640 struct ieee802_11_elems elems; 1641 1642 if (hapd->wps == NULL) 1643 return 0; 1644 1645 if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) { 1646 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from " 1647 MACSTR, MAC2STR(addr)); 1648 return 0; 1649 } 1650 1651 if (elems.ssid && elems.ssid_len > 0 && 1652 (elems.ssid_len != hapd->conf->ssid.ssid_len || 1653 os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) != 1654 0)) 1655 return 0; /* Not for us */ 1656 1657 wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA); 1658 if (wps_ie == NULL) 1659 return 0; 1660 if (wps_validate_probe_req(wps_ie, addr) < 0) { 1661 wpabuf_free(wps_ie); 1662 return 0; 1663 } 1664 1665 if (wpabuf_len(wps_ie) > 0) { 1666 int p2p_wildcard = 0; 1667 #ifdef CONFIG_P2P 1668 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN && 1669 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, 1670 P2P_WILDCARD_SSID_LEN) == 0) 1671 p2p_wildcard = 1; 1672 #endif /* CONFIG_P2P */ 1673 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie, 1674 p2p_wildcard); 1675 #ifdef CONFIG_WPS_UPNP 1676 /* FIX: what exactly should be included in the WLANEvent? 1677 * WPS attributes? Full ProbeReq frame? */ 1678 if (!p2p_wildcard) 1679 upnp_wps_device_send_wlan_event( 1680 hapd->wps_upnp, addr, 1681 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie); 1682 #endif /* CONFIG_WPS_UPNP */ 1683 } 1684 1685 wpabuf_free(wps_ie); 1686 1687 return 0; 1688 } 1689 1690 1691 #ifdef CONFIG_WPS_UPNP 1692 1693 static int hostapd_rx_req_put_wlan_response( 1694 void *priv, enum upnp_wps_wlanevent_type ev_type, 1695 const u8 *mac_addr, const struct wpabuf *msg, 1696 enum wps_msg_type msg_type) 1697 { 1698 struct hostapd_data *hapd = priv; 1699 struct sta_info *sta; 1700 struct upnp_pending_message *p; 1701 1702 wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr=" 1703 MACSTR, ev_type, MAC2STR(mac_addr)); 1704 wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage", 1705 wpabuf_head(msg), wpabuf_len(msg)); 1706 if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) { 1707 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected " 1708 "PutWLANResponse WLANEventType %d", ev_type); 1709 return -1; 1710 } 1711 1712 /* 1713 * EAP response to ongoing to WPS Registration. Send it to EAP-WSC 1714 * server implementation for delivery to the peer. 1715 */ 1716 1717 sta = ap_get_sta(hapd, mac_addr); 1718 #ifndef CONFIG_WPS_STRICT 1719 if (!sta) { 1720 /* 1721 * Workaround - Intel wsccmd uses bogus NewWLANEventMAC: 1722 * Pick STA that is in an ongoing WPS registration without 1723 * checking the MAC address. 1724 */ 1725 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based " 1726 "on NewWLANEventMAC; try wildcard match"); 1727 for (sta = hapd->sta_list; sta; sta = sta->next) { 1728 if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS)) 1729 break; 1730 } 1731 } 1732 #endif /* CONFIG_WPS_STRICT */ 1733 1734 if (!sta || !(sta->flags & WLAN_STA_WPS)) { 1735 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found"); 1736 return 0; 1737 } 1738 1739 if (!sta->eapol_sm) { 1740 /* 1741 * This can happen, e.g., if an ER sends an extra message after 1742 * the station has disassociated (but not fully 1743 * deauthenticated). 1744 */ 1745 wpa_printf(MSG_DEBUG, "WPS UPnP: Matching STA did not have EAPOL state machine initialized"); 1746 return 0; 1747 } 1748 1749 p = os_zalloc(sizeof(*p)); 1750 if (p == NULL) 1751 return -1; 1752 os_memcpy(p->addr, sta->addr, ETH_ALEN); 1753 p->msg = wpabuf_dup(msg); 1754 p->type = msg_type; 1755 p->next = hapd->wps->upnp_msgs; 1756 hapd->wps->upnp_msgs = p; 1757 1758 return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap); 1759 } 1760 1761 1762 static int hostapd_wps_upnp_init(struct hostapd_data *hapd, 1763 struct wps_context *wps) 1764 { 1765 struct upnp_wps_device_ctx *ctx; 1766 1767 if (!hapd->conf->upnp_iface) 1768 return 0; 1769 ctx = os_zalloc(sizeof(*ctx)); 1770 if (ctx == NULL) 1771 return -1; 1772 1773 ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response; 1774 if (hapd->conf->ap_pin) 1775 ctx->ap_pin = os_strdup(hapd->conf->ap_pin); 1776 1777 hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd, 1778 hapd->conf->upnp_iface); 1779 if (hapd->wps_upnp == NULL) 1780 return -1; 1781 wps->wps_upnp = hapd->wps_upnp; 1782 1783 return 0; 1784 } 1785 1786 1787 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd) 1788 { 1789 upnp_wps_device_deinit(hapd->wps_upnp, hapd); 1790 } 1791 1792 #endif /* CONFIG_WPS_UPNP */ 1793 1794 1795 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr, 1796 char *buf, size_t buflen) 1797 { 1798 if (hapd->wps == NULL) 1799 return 0; 1800 return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen); 1801 } 1802 1803 1804 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx) 1805 { 1806 struct hostapd_data *hapd = eloop_data; 1807 wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out"); 1808 hostapd_wps_ap_pin_disable(hapd); 1809 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED); 1810 } 1811 1812 1813 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout) 1814 { 1815 wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout); 1816 hapd->ap_pin_failures = 0; 1817 hapd->ap_pin_failures_consecutive = 0; 1818 hapd->conf->ap_setup_locked = 0; 1819 if (hapd->wps->ap_setup_locked) { 1820 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED); 1821 hapd->wps->ap_setup_locked = 0; 1822 wps_registrar_update_ie(hapd->wps->registrar); 1823 } 1824 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1825 if (timeout > 0) 1826 eloop_register_timeout(timeout, 0, 1827 hostapd_wps_ap_pin_timeout, hapd, NULL); 1828 } 1829 1830 1831 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx) 1832 { 1833 os_free(hapd->conf->ap_pin); 1834 hapd->conf->ap_pin = NULL; 1835 #ifdef CONFIG_WPS_UPNP 1836 upnp_wps_set_ap_pin(hapd->wps_upnp, NULL); 1837 #endif /* CONFIG_WPS_UPNP */ 1838 eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL); 1839 return 0; 1840 } 1841 1842 1843 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd) 1844 { 1845 wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN"); 1846 hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL); 1847 } 1848 1849 1850 struct wps_ap_pin_data { 1851 char pin_txt[9]; 1852 int timeout; 1853 }; 1854 1855 1856 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx) 1857 { 1858 struct wps_ap_pin_data *data = ctx; 1859 1860 if (!hapd->wps) 1861 return 0; 1862 1863 os_free(hapd->conf->ap_pin); 1864 hapd->conf->ap_pin = os_strdup(data->pin_txt); 1865 #ifdef CONFIG_WPS_UPNP 1866 upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt); 1867 #endif /* CONFIG_WPS_UPNP */ 1868 hostapd_wps_ap_pin_enable(hapd, data->timeout); 1869 return 0; 1870 } 1871 1872 1873 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout) 1874 { 1875 unsigned int pin; 1876 struct wps_ap_pin_data data; 1877 1878 if (wps_generate_pin(&pin) < 0) 1879 return NULL; 1880 os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin); 1881 data.timeout = timeout; 1882 hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1883 return hapd->conf->ap_pin; 1884 } 1885 1886 1887 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd) 1888 { 1889 return hapd->conf->ap_pin; 1890 } 1891 1892 1893 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin, 1894 int timeout) 1895 { 1896 struct wps_ap_pin_data data; 1897 int ret; 1898 1899 ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin); 1900 if (os_snprintf_error(sizeof(data.pin_txt), ret)) 1901 return -1; 1902 data.timeout = timeout; 1903 return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data); 1904 } 1905 1906 1907 static int wps_update_ie(struct hostapd_data *hapd, void *ctx) 1908 { 1909 if (hapd->wps) 1910 wps_registrar_update_ie(hapd->wps->registrar); 1911 return 0; 1912 } 1913 1914 1915 void hostapd_wps_update_ie(struct hostapd_data *hapd) 1916 { 1917 hostapd_wps_for_each(hapd, wps_update_ie, NULL); 1918 } 1919 1920 1921 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid, 1922 const char *auth, const char *encr, const char *key) 1923 { 1924 struct wps_credential cred; 1925 size_t len; 1926 1927 os_memset(&cred, 0, sizeof(cred)); 1928 1929 len = os_strlen(ssid); 1930 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 1931 hexstr2bin(ssid, cred.ssid, len / 2)) 1932 return -1; 1933 cred.ssid_len = len / 2; 1934 1935 if (os_strncmp(auth, "OPEN", 4) == 0) 1936 cred.auth_type = WPS_AUTH_OPEN; 1937 #ifndef CONFIG_NO_TKIP 1938 else if (os_strncmp(auth, "WPAPSK", 6) == 0) 1939 cred.auth_type = WPS_AUTH_WPAPSK; 1940 #endif /* CONFIG_NO_TKIP */ 1941 else if (os_strncmp(auth, "WPA2PSK", 7) == 0) 1942 cred.auth_type = WPS_AUTH_WPA2PSK; 1943 else 1944 return -1; 1945 1946 if (encr) { 1947 if (os_strncmp(encr, "NONE", 4) == 0) 1948 cred.encr_type = WPS_ENCR_NONE; 1949 #ifndef CONFIG_NO_TKIP 1950 else if (os_strncmp(encr, "TKIP", 4) == 0) 1951 cred.encr_type = WPS_ENCR_TKIP; 1952 #endif /* CONFIG_NO_TKIP */ 1953 else if (os_strncmp(encr, "CCMP", 4) == 0) 1954 cred.encr_type = WPS_ENCR_AES; 1955 else 1956 return -1; 1957 } else 1958 cred.encr_type = WPS_ENCR_NONE; 1959 1960 if (key) { 1961 len = os_strlen(key); 1962 if ((len & 1) || len > 2 * sizeof(cred.key) || 1963 hexstr2bin(key, cred.key, len / 2)) 1964 return -1; 1965 cred.key_len = len / 2; 1966 } 1967 1968 if (!hapd->wps) { 1969 wpa_printf(MSG_ERROR, "WPS: WPS config does not exist"); 1970 return -1; 1971 } 1972 1973 return wps_registrar_config_ap(hapd->wps->registrar, &cred); 1974 } 1975 1976 1977 #ifdef CONFIG_WPS_NFC 1978 1979 struct wps_nfc_password_token_data { 1980 const u8 *oob_dev_pw; 1981 size_t oob_dev_pw_len; 1982 int added; 1983 }; 1984 1985 1986 static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx) 1987 { 1988 struct wps_nfc_password_token_data *data = ctx; 1989 int ret; 1990 1991 if (hapd->wps == NULL) 1992 return 0; 1993 ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar, 1994 data->oob_dev_pw, 1995 data->oob_dev_pw_len); 1996 if (ret == 0) 1997 data->added++; 1998 return ret; 1999 } 2000 2001 2002 static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd, 2003 struct wps_parse_attr *attr) 2004 { 2005 struct wps_nfc_password_token_data data; 2006 2007 data.oob_dev_pw = attr->oob_dev_password; 2008 data.oob_dev_pw_len = attr->oob_dev_password_len; 2009 data.added = 0; 2010 if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0) 2011 return -1; 2012 return data.added ? 0 : -1; 2013 } 2014 2015 2016 static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd, 2017 const struct wpabuf *wps) 2018 { 2019 struct wps_parse_attr attr; 2020 2021 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2022 2023 if (wps_parse_msg(wps, &attr)) { 2024 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2025 return -1; 2026 } 2027 2028 if (attr.oob_dev_password) 2029 return hostapd_wps_add_nfc_password_token(hapd, &attr); 2030 2031 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2032 return -1; 2033 } 2034 2035 2036 int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd, 2037 const struct wpabuf *data) 2038 { 2039 const struct wpabuf *wps = data; 2040 struct wpabuf *tmp = NULL; 2041 int ret; 2042 2043 if (wpabuf_len(data) < 4) 2044 return -1; 2045 2046 if (*wpabuf_head_u8(data) != 0x10) { 2047 /* Assume this contains full NDEF record */ 2048 tmp = ndef_parse_wifi(data); 2049 if (tmp == NULL) { 2050 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2051 return -1; 2052 } 2053 wps = tmp; 2054 } 2055 2056 ret = hostapd_wps_nfc_tag_process(hapd, wps); 2057 wpabuf_free(tmp); 2058 return ret; 2059 } 2060 2061 2062 struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd, 2063 int ndef) 2064 { 2065 struct wpabuf *ret; 2066 2067 if (hapd->wps == NULL) 2068 return NULL; 2069 2070 ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd), 2071 hapd->iconf->channel); 2072 if (ndef && ret) { 2073 struct wpabuf *tmp; 2074 tmp = ndef_build_wifi(ret); 2075 wpabuf_free(ret); 2076 if (tmp == NULL) 2077 return NULL; 2078 ret = tmp; 2079 } 2080 2081 return ret; 2082 } 2083 2084 2085 struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef) 2086 { 2087 struct wpabuf *ret; 2088 2089 if (hapd->wps == NULL) 2090 return NULL; 2091 2092 if (hapd->conf->wps_nfc_dh_pubkey == NULL) { 2093 struct wps_context *wps = hapd->wps; 2094 if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey, 2095 &hapd->conf->wps_nfc_dh_privkey) < 0) 2096 return NULL; 2097 hostapd_wps_nfc_clear(wps); 2098 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2099 wps->ap_nfc_dh_pubkey = 2100 wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey); 2101 wps->ap_nfc_dh_privkey = 2102 wpabuf_dup(hapd->conf->wps_nfc_dh_privkey); 2103 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2104 hostapd_wps_nfc_clear(wps); 2105 return NULL; 2106 } 2107 } 2108 2109 ret = wps_build_nfc_handover_sel(hapd->wps, 2110 hapd->conf->wps_nfc_dh_pubkey, 2111 hapd->own_addr, hapd->iface->freq); 2112 2113 if (ndef && ret) { 2114 struct wpabuf *tmp; 2115 tmp = ndef_build_wifi(ret); 2116 wpabuf_free(ret); 2117 if (tmp == NULL) 2118 return NULL; 2119 ret = tmp; 2120 } 2121 2122 return ret; 2123 } 2124 2125 2126 int hostapd_wps_nfc_report_handover(struct hostapd_data *hapd, 2127 const struct wpabuf *req, 2128 const struct wpabuf *sel) 2129 { 2130 struct wpabuf *wps; 2131 int ret = -1; 2132 u16 wsc_len; 2133 const u8 *pos; 2134 struct wpabuf msg; 2135 struct wps_parse_attr attr; 2136 u16 dev_pw_id; 2137 2138 /* 2139 * Enrollee/station is always initiator of the NFC connection handover, 2140 * so use the request message here to find Enrollee public key hash. 2141 */ 2142 wps = ndef_parse_wifi(req); 2143 if (wps == NULL) 2144 return -1; 2145 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2146 "payload from NFC connection handover"); 2147 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2148 if (wpabuf_len(wps) < 2) { 2149 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2150 "Message"); 2151 goto out; 2152 } 2153 pos = wpabuf_head(wps); 2154 wsc_len = WPA_GET_BE16(pos); 2155 if (wsc_len > wpabuf_len(wps) - 2) { 2156 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2157 "in rt Wi-Fi Handover Request Message", wsc_len); 2158 goto out; 2159 } 2160 pos += 2; 2161 2162 wpa_hexdump(MSG_DEBUG, 2163 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2164 pos, wsc_len); 2165 if (wsc_len < wpabuf_len(wps) - 2) { 2166 wpa_hexdump(MSG_DEBUG, 2167 "WPS: Ignore extra data after WSC attributes", 2168 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2169 } 2170 2171 wpabuf_set(&msg, pos, wsc_len); 2172 ret = wps_parse_msg(&msg, &attr); 2173 if (ret < 0) { 2174 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2175 "Wi-Fi Handover Request Message"); 2176 goto out; 2177 } 2178 2179 if (attr.oob_dev_password == NULL || 2180 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2181 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2182 "included in Wi-Fi Handover Request Message"); 2183 ret = -1; 2184 goto out; 2185 } 2186 2187 if (attr.uuid_e == NULL) { 2188 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2189 "Handover Request Message"); 2190 ret = -1; 2191 goto out; 2192 } 2193 2194 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2195 2196 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2197 attr.oob_dev_password, attr.oob_dev_password_len); 2198 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2199 WPS_OOB_PUBKEY_HASH_LEN); 2200 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2201 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2202 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2203 ret = -1; 2204 goto out; 2205 } 2206 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2207 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2208 2209 ret = wps_registrar_add_nfc_pw_token(hapd->wps->registrar, 2210 attr.oob_dev_password, 2211 DEV_PW_NFC_CONNECTION_HANDOVER, 2212 NULL, 0, 1); 2213 2214 out: 2215 wpabuf_free(wps); 2216 return ret; 2217 } 2218 2219 2220 struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef) 2221 { 2222 if (hapd->conf->wps_nfc_pw_from_config) { 2223 return wps_nfc_token_build(ndef, 2224 hapd->conf->wps_nfc_dev_pw_id, 2225 hapd->conf->wps_nfc_dh_pubkey, 2226 hapd->conf->wps_nfc_dev_pw); 2227 } 2228 2229 return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id, 2230 &hapd->conf->wps_nfc_dh_pubkey, 2231 &hapd->conf->wps_nfc_dh_privkey, 2232 &hapd->conf->wps_nfc_dev_pw); 2233 } 2234 2235 2236 int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd) 2237 { 2238 struct wps_context *wps = hapd->wps; 2239 struct wpabuf *pw; 2240 2241 if (wps == NULL) 2242 return -1; 2243 2244 if (!hapd->conf->wps_nfc_dh_pubkey || 2245 !hapd->conf->wps_nfc_dh_privkey || 2246 !hapd->conf->wps_nfc_dev_pw || 2247 !hapd->conf->wps_nfc_dev_pw_id) 2248 return -1; 2249 2250 hostapd_wps_nfc_clear(wps); 2251 wpa_printf(MSG_DEBUG, 2252 "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)", 2253 hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps); 2254 wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id; 2255 wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey); 2256 wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey); 2257 pw = hapd->conf->wps_nfc_dev_pw; 2258 wps->ap_nfc_dev_pw = wpabuf_alloc( 2259 wpabuf_len(pw) * 2 + 1); 2260 if (wps->ap_nfc_dev_pw) { 2261 wpa_snprintf_hex_uppercase( 2262 (char *) wpabuf_put(wps->ap_nfc_dev_pw, 2263 wpabuf_len(pw) * 2), 2264 wpabuf_len(pw) * 2 + 1, 2265 wpabuf_head(pw), wpabuf_len(pw)); 2266 } 2267 2268 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey || 2269 !wps->ap_nfc_dev_pw) { 2270 hostapd_wps_nfc_clear(wps); 2271 return -1; 2272 } 2273 2274 return 0; 2275 } 2276 2277 2278 void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd) 2279 { 2280 wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s", 2281 hapd->conf->iface); 2282 hostapd_wps_nfc_clear(hapd->wps); 2283 } 2284 2285 #endif /* CONFIG_WPS_NFC */ 2286
Indexes created Sat Jun 27 00:24:51 UTC 2026