1 /* 2 * wpa_supplicant / WPS integration 3 * Copyright (c) 2008-2014, 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 "includes.h" 10 11 #include "common.h" 12 #include "eloop.h" 13 #include "uuid.h" 14 #include "crypto/random.h" 15 #include "crypto/dh_group5.h" 16 #include "common/ieee802_11_defs.h" 17 #include "common/ieee802_11_common.h" 18 #include "common/wpa_common.h" 19 #include "common/wpa_ctrl.h" 20 #include "eap_common/eap_wsc_common.h" 21 #include "eap_peer/eap.h" 22 #include "eapol_supp/eapol_supp_sm.h" 23 #include "rsn_supp/wpa.h" 24 #include "wps/wps_attr_parse.h" 25 #include "config.h" 26 #include "wpa_supplicant_i.h" 27 #include "driver_i.h" 28 #include "notify.h" 29 #include "blacklist.h" 30 #include "bss.h" 31 #include "scan.h" 32 #include "ap.h" 33 #include "p2p/p2p.h" 34 #include "p2p_supplicant.h" 35 #include "wps_supplicant.h" 36 37 38 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG 39 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3 40 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */ 41 42 /* 43 * The minimum time in seconds before trying to associate to a WPS PIN AP that 44 * does not have Selected Registrar TRUE. 45 */ 46 #ifndef WPS_PIN_TIME_IGNORE_SEL_REG 47 #define WPS_PIN_TIME_IGNORE_SEL_REG 5 48 #endif /* WPS_PIN_TIME_IGNORE_SEL_REG */ 49 50 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx); 51 static void wpas_clear_wps(struct wpa_supplicant *wpa_s); 52 53 54 static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s) 55 { 56 os_free(wpa_s->wps_ap); 57 wpa_s->wps_ap = NULL; 58 wpa_s->num_wps_ap = 0; 59 wpa_s->wps_ap_iter = 0; 60 } 61 62 63 static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx) 64 { 65 struct wpa_supplicant *wpa_s = eloop_ctx; 66 int use_fast_assoc = timeout_ctx != NULL; 67 68 wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb"); 69 if (!use_fast_assoc || 70 wpa_supplicant_fast_associate(wpa_s) != 1) 71 wpa_supplicant_req_scan(wpa_s, 0, 0); 72 } 73 74 75 static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s) 76 { 77 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0); 78 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1); 79 } 80 81 82 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s) 83 { 84 if (wpas_p2p_wps_eapol_cb(wpa_s) > 0) 85 return 1; 86 87 if (!wpa_s->wps_success && 88 wpa_s->current_ssid && 89 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) { 90 const u8 *bssid = wpa_s->bssid; 91 if (is_zero_ether_addr(bssid)) 92 bssid = wpa_s->pending_bssid; 93 94 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR 95 " did not succeed - continue trying to find " 96 "suitable AP", MAC2STR(bssid)); 97 wpa_blacklist_add(wpa_s, bssid); 98 99 wpa_supplicant_deauthenticate(wpa_s, 100 WLAN_REASON_DEAUTH_LEAVING); 101 wpa_s->reassociate = 1; 102 wpa_supplicant_req_scan(wpa_s, 103 wpa_s->blacklist_cleared ? 5 : 0, 0); 104 wpa_s->blacklist_cleared = 0; 105 return 1; 106 } 107 108 wpas_wps_clear_ap_info(wpa_s); 109 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 110 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success) 111 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL); 112 113 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid && 114 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 115 int disabled = wpa_s->current_ssid->disabled; 116 unsigned int freq = wpa_s->assoc_freq; 117 struct wpa_bss *bss; 118 struct wpa_ssid *ssid = NULL; 119 int use_fast_assoc = 0; 120 121 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - " 122 "try to associate with the received credential " 123 "(freq=%u)", freq); 124 wpa_s->own_disconnect_req = 1; 125 wpa_supplicant_deauthenticate(wpa_s, 126 WLAN_REASON_DEAUTH_LEAVING); 127 if (disabled) { 128 wpa_printf(MSG_DEBUG, "WPS: Current network is " 129 "disabled - wait for user to enable"); 130 return 1; 131 } 132 wpa_s->after_wps = 5; 133 wpa_s->wps_freq = freq; 134 wpa_s->normal_scans = 0; 135 wpa_s->reassociate = 1; 136 137 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association " 138 "without a new scan can be used"); 139 bss = wpa_supplicant_pick_network(wpa_s, &ssid); 140 if (bss) { 141 struct wpabuf *wps; 142 struct wps_parse_attr attr; 143 144 wps = wpa_bss_get_vendor_ie_multi(bss, 145 WPS_IE_VENDOR_TYPE); 146 if (wps && wps_parse_msg(wps, &attr) == 0 && 147 attr.wps_state && 148 *attr.wps_state == WPS_STATE_CONFIGURED) 149 use_fast_assoc = 1; 150 wpabuf_free(wps); 151 } 152 153 /* 154 * Complete the next step from an eloop timeout to allow pending 155 * driver events related to the disconnection to be processed 156 * first. This makes it less likely for disconnection event to 157 * cause problems with the following connection. 158 */ 159 wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout"); 160 wpas_wps_assoc_with_cred_cancel(wpa_s); 161 eloop_register_timeout(0, 10000, 162 wpas_wps_assoc_with_cred, wpa_s, 163 use_fast_assoc ? (void *) 1 : 164 (void *) 0); 165 return 1; 166 } 167 168 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) { 169 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting " 170 "for external credential processing"); 171 wpas_clear_wps(wpa_s); 172 wpa_s->own_disconnect_req = 1; 173 wpa_supplicant_deauthenticate(wpa_s, 174 WLAN_REASON_DEAUTH_LEAVING); 175 return 1; 176 } 177 178 return 0; 179 } 180 181 182 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s, 183 struct wpa_ssid *ssid, 184 const struct wps_credential *cred) 185 { 186 struct wpa_driver_capa capa; 187 struct wpa_bss *bss; 188 const u8 *ie; 189 struct wpa_ie_data adv; 190 int wpa2 = 0, ccmp = 0; 191 192 /* 193 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in 194 * case they are configured for mixed mode operation (WPA+WPA2 and 195 * TKIP+CCMP). Try to use scan results to figure out whether the AP 196 * actually supports stronger security and select that if the client 197 * has support for it, too. 198 */ 199 200 if (wpa_drv_get_capa(wpa_s, &capa)) 201 return; /* Unknown what driver supports */ 202 203 if (ssid->ssid == NULL) 204 return; 205 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len); 206 if (bss == NULL) { 207 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS " 208 "table - use credential as-is"); 209 return; 210 } 211 212 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table"); 213 214 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 215 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) { 216 wpa2 = 1; 217 if (adv.pairwise_cipher & WPA_CIPHER_CCMP) 218 ccmp = 1; 219 } else { 220 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 221 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 && 222 adv.pairwise_cipher & WPA_CIPHER_CCMP) 223 ccmp = 1; 224 } 225 226 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) && 227 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) { 228 /* 229 * TODO: This could be the initial AP configuration and the 230 * Beacon contents could change shortly. Should request a new 231 * scan and delay addition of the network until the updated 232 * scan results are available. 233 */ 234 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA " 235 "support - use credential as-is"); 236 return; 237 } 238 239 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) && 240 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) && 241 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { 242 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential " 243 "based on scan results"); 244 if (wpa_s->conf->ap_scan == 1) 245 ssid->pairwise_cipher |= WPA_CIPHER_CCMP; 246 else 247 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 248 } 249 250 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) && 251 (ssid->proto & WPA_PROTO_WPA) && 252 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) { 253 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential " 254 "based on scan results"); 255 if (wpa_s->conf->ap_scan == 1) 256 ssid->proto |= WPA_PROTO_RSN; 257 else 258 ssid->proto = WPA_PROTO_RSN; 259 } 260 } 261 262 263 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s, 264 struct wpa_ssid *new_ssid) 265 { 266 struct wpa_ssid *ssid, *next; 267 268 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid; 269 ssid = next, next = ssid ? ssid->next : NULL) { 270 /* 271 * new_ssid has already been added to the list in 272 * wpas_wps_add_network(), so skip it. 273 */ 274 if (ssid == new_ssid) 275 continue; 276 277 if (ssid->bssid_set || new_ssid->bssid_set) { 278 if (ssid->bssid_set != new_ssid->bssid_set) 279 continue; 280 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) != 281 0) 282 continue; 283 } 284 285 /* compare SSID */ 286 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len) 287 continue; 288 289 if (ssid->ssid && new_ssid->ssid) { 290 if (os_memcmp(ssid->ssid, new_ssid->ssid, 291 ssid->ssid_len) != 0) 292 continue; 293 } else if (ssid->ssid || new_ssid->ssid) 294 continue; 295 296 /* compare security parameters */ 297 if (ssid->auth_alg != new_ssid->auth_alg || 298 ssid->key_mgmt != new_ssid->key_mgmt || 299 (ssid->group_cipher != new_ssid->group_cipher && 300 !(ssid->group_cipher & new_ssid->group_cipher & 301 WPA_CIPHER_CCMP))) 302 continue; 303 304 /* 305 * Some existing WPS APs will send two creds in case they are 306 * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP). 307 * Try to merge these two creds if they are received in the same 308 * M8 message. 309 */ 310 if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run && 311 wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { 312 if (new_ssid->passphrase && ssid->passphrase && 313 os_strcmp(new_ssid->passphrase, ssid->passphrase) != 314 0) { 315 wpa_printf(MSG_DEBUG, 316 "WPS: M8 Creds with different passphrase - do not merge"); 317 continue; 318 } 319 320 if (new_ssid->psk_set && 321 (!ssid->psk_set || 322 os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) { 323 wpa_printf(MSG_DEBUG, 324 "WPS: M8 Creds with different PSK - do not merge"); 325 continue; 326 } 327 328 if ((new_ssid->passphrase && !ssid->passphrase) || 329 (!new_ssid->passphrase && ssid->passphrase)) { 330 wpa_printf(MSG_DEBUG, 331 "WPS: M8 Creds with different passphrase/PSK type - do not merge"); 332 continue; 333 } 334 335 wpa_printf(MSG_DEBUG, 336 "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message"); 337 new_ssid->proto |= ssid->proto; 338 new_ssid->pairwise_cipher |= ssid->pairwise_cipher; 339 } else { 340 /* 341 * proto and pairwise_cipher difference matter for 342 * non-mixed-mode creds. 343 */ 344 if (ssid->proto != new_ssid->proto || 345 ssid->pairwise_cipher != new_ssid->pairwise_cipher) 346 continue; 347 } 348 349 /* Remove the duplicated older network entry. */ 350 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id); 351 wpas_notify_network_removed(wpa_s, ssid); 352 if (wpa_s->current_ssid == ssid) 353 wpa_s->current_ssid = NULL; 354 wpa_config_remove_network(wpa_s->conf, ssid->id); 355 } 356 } 357 358 359 static int wpa_supplicant_wps_cred(void *ctx, 360 const struct wps_credential *cred) 361 { 362 struct wpa_supplicant *wpa_s = ctx; 363 struct wpa_ssid *ssid = wpa_s->current_ssid; 364 u16 auth_type; 365 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 366 int registrar = 0; 367 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 368 369 if ((wpa_s->conf->wps_cred_processing == 1 || 370 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) { 371 size_t blen = cred->cred_attr_len * 2 + 1; 372 char *buf = os_malloc(blen); 373 if (buf) { 374 wpa_snprintf_hex(buf, blen, 375 cred->cred_attr, cred->cred_attr_len); 376 wpa_msg(wpa_s, MSG_INFO, "%s%s", 377 WPS_EVENT_CRED_RECEIVED, buf); 378 os_free(buf); 379 } 380 381 wpas_notify_wps_credential(wpa_s, cred); 382 } else 383 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED); 384 385 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute", 386 cred->cred_attr, cred->cred_attr_len); 387 388 if (wpa_s->conf->wps_cred_processing == 1) 389 return 0; 390 391 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len); 392 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x", 393 cred->auth_type); 394 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type); 395 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx); 396 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key", 397 cred->key, cred->key_len); 398 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR, 399 MAC2STR(cred->mac_addr)); 400 401 auth_type = cred->auth_type; 402 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 403 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode " 404 "auth_type into WPA2PSK"); 405 auth_type = WPS_AUTH_WPA2PSK; 406 } 407 408 if (auth_type != WPS_AUTH_OPEN && 409 auth_type != WPS_AUTH_WPAPSK && 410 auth_type != WPS_AUTH_WPA2PSK) { 411 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for " 412 "unsupported authentication type 0x%x", 413 auth_type); 414 return 0; 415 } 416 417 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) { 418 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) { 419 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with " 420 "invalid Network Key length %lu", 421 (unsigned long) cred->key_len); 422 return -1; 423 } 424 } 425 426 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 427 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based " 428 "on the received credential"); 429 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 430 if (ssid->eap.identity && 431 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN && 432 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR, 433 WSC_ID_REGISTRAR_LEN) == 0) 434 registrar = 1; 435 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 436 os_free(ssid->eap.identity); 437 ssid->eap.identity = NULL; 438 ssid->eap.identity_len = 0; 439 os_free(ssid->eap.phase1); 440 ssid->eap.phase1 = NULL; 441 os_free(ssid->eap.eap_methods); 442 ssid->eap.eap_methods = NULL; 443 if (!ssid->p2p_group) { 444 ssid->temporary = 0; 445 ssid->bssid_set = 0; 446 } 447 ssid->disabled_until.sec = 0; 448 ssid->disabled_until.usec = 0; 449 ssid->auth_failures = 0; 450 } else { 451 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the " 452 "received credential"); 453 ssid = wpa_config_add_network(wpa_s->conf); 454 if (ssid == NULL) 455 return -1; 456 if (wpa_s->current_ssid) { 457 /* 458 * Should the GO issue multiple credentials for some 459 * reason, each credential should be marked as a 460 * temporary P2P group similarly to the one that gets 461 * marked as such based on the pre-configured values 462 * used for the WPS network block. 463 */ 464 ssid->p2p_group = wpa_s->current_ssid->p2p_group; 465 ssid->temporary = wpa_s->current_ssid->temporary; 466 } 467 wpas_notify_network_added(wpa_s, ssid); 468 } 469 470 wpa_config_set_network_defaults(ssid); 471 ssid->wps_run = wpa_s->wps_run; 472 473 os_free(ssid->ssid); 474 ssid->ssid = os_malloc(cred->ssid_len); 475 if (ssid->ssid) { 476 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len); 477 ssid->ssid_len = cred->ssid_len; 478 } 479 480 switch (cred->encr_type) { 481 case WPS_ENCR_NONE: 482 break; 483 case WPS_ENCR_TKIP: 484 ssid->pairwise_cipher = WPA_CIPHER_TKIP; 485 break; 486 case WPS_ENCR_AES: 487 ssid->pairwise_cipher = WPA_CIPHER_CCMP; 488 if (wpa_s->drv_capa_known && 489 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) { 490 ssid->pairwise_cipher |= WPA_CIPHER_GCMP; 491 ssid->group_cipher |= WPA_CIPHER_GCMP; 492 } 493 break; 494 } 495 496 switch (auth_type) { 497 case WPS_AUTH_OPEN: 498 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 499 ssid->key_mgmt = WPA_KEY_MGMT_NONE; 500 ssid->proto = 0; 501 #ifdef CONFIG_WPS_REG_DISABLE_OPEN 502 if (registrar) { 503 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK 504 "id=%d - Credentials for an open " 505 "network disabled by default - use " 506 "'select_network %d' to enable", 507 ssid->id, ssid->id); 508 ssid->disabled = 1; 509 } 510 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */ 511 break; 512 case WPS_AUTH_WPAPSK: 513 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 514 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 515 ssid->proto = WPA_PROTO_WPA; 516 break; 517 case WPS_AUTH_WPA2PSK: 518 ssid->auth_alg = WPA_AUTH_ALG_OPEN; 519 ssid->key_mgmt = WPA_KEY_MGMT_PSK; 520 ssid->proto = WPA_PROTO_RSN; 521 break; 522 } 523 524 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) { 525 if (cred->key_len == 2 * PMK_LEN) { 526 if (hexstr2bin((const char *) cred->key, ssid->psk, 527 PMK_LEN)) { 528 wpa_printf(MSG_ERROR, "WPS: Invalid Network " 529 "Key"); 530 return -1; 531 } 532 ssid->psk_set = 1; 533 ssid->export_keys = 1; 534 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) { 535 os_free(ssid->passphrase); 536 ssid->passphrase = os_malloc(cred->key_len + 1); 537 if (ssid->passphrase == NULL) 538 return -1; 539 os_memcpy(ssid->passphrase, cred->key, cred->key_len); 540 ssid->passphrase[cred->key_len] = '\0'; 541 wpa_config_update_psk(ssid); 542 ssid->export_keys = 1; 543 } else { 544 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key " 545 "length %lu", 546 (unsigned long) cred->key_len); 547 return -1; 548 } 549 } 550 ssid->priority = wpa_s->conf->wps_priority; 551 552 wpas_wps_security_workaround(wpa_s, ssid, cred); 553 554 wpas_wps_remove_dup_network(wpa_s, ssid); 555 556 #ifndef CONFIG_NO_CONFIG_WRITE 557 if (wpa_s->conf->update_config && 558 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 559 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration"); 560 return -1; 561 } 562 #endif /* CONFIG_NO_CONFIG_WRITE */ 563 564 if (ssid->priority) 565 wpa_config_update_prio_list(wpa_s->conf); 566 567 /* 568 * Optimize the post-WPS scan based on the channel used during 569 * the provisioning in case EAP-Failure is not received. 570 */ 571 wpa_s->after_wps = 5; 572 wpa_s->wps_freq = wpa_s->assoc_freq; 573 574 return 0; 575 } 576 577 578 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s, 579 struct wps_event_m2d *m2d) 580 { 581 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D 582 "dev_password_id=%d config_error=%d", 583 m2d->dev_password_id, m2d->config_error); 584 wpas_notify_wps_event_m2d(wpa_s, m2d); 585 #ifdef CONFIG_P2P 586 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) { 587 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D 588 "dev_password_id=%d config_error=%d", 589 m2d->dev_password_id, m2d->config_error); 590 } 591 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) { 592 /* 593 * Notify P2P from eloop timeout to avoid issues with the 594 * interface getting removed while processing a message. 595 */ 596 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s, 597 NULL); 598 } 599 #endif /* CONFIG_P2P */ 600 } 601 602 603 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx) 604 { 605 struct wpa_supplicant *wpa_s = eloop_ctx; 606 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout"); 607 wpas_clear_wps(wpa_s); 608 } 609 610 611 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s, 612 struct wps_event_fail *fail) 613 { 614 if (fail->error_indication > 0 && 615 fail->error_indication < NUM_WPS_EI_VALUES) { 616 wpa_msg(wpa_s, MSG_INFO, 617 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)", 618 fail->msg, fail->config_error, fail->error_indication, 619 wps_ei_str(fail->error_indication)); 620 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) 621 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL 622 "msg=%d config_error=%d reason=%d (%s)", 623 fail->msg, fail->config_error, 624 fail->error_indication, 625 wps_ei_str(fail->error_indication)); 626 } else { 627 wpa_msg(wpa_s, MSG_INFO, 628 WPS_EVENT_FAIL "msg=%d config_error=%d", 629 fail->msg, fail->config_error); 630 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) 631 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL 632 "msg=%d config_error=%d", 633 fail->msg, fail->config_error); 634 } 635 636 /* 637 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK. 638 */ 639 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network"); 640 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 641 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL); 642 643 wpas_notify_wps_event_fail(wpa_s, fail); 644 wpas_p2p_wps_failed(wpa_s, fail); 645 } 646 647 648 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx); 649 650 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s) 651 { 652 struct wpa_ssid *ssid; 653 int changed = 0; 654 655 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 656 657 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 658 if (ssid->disabled_for_connect && ssid->disabled) { 659 ssid->disabled_for_connect = 0; 660 ssid->disabled = 0; 661 wpas_notify_network_enabled_changed(wpa_s, ssid); 662 changed++; 663 } 664 } 665 666 if (changed) { 667 #ifndef CONFIG_NO_CONFIG_WRITE 668 if (wpa_s->conf->update_config && 669 wpa_config_write(wpa_s->confname, wpa_s->conf)) { 670 wpa_printf(MSG_DEBUG, "WPS: Failed to update " 671 "configuration"); 672 } 673 #endif /* CONFIG_NO_CONFIG_WRITE */ 674 } 675 } 676 677 678 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx) 679 { 680 struct wpa_supplicant *wpa_s = eloop_ctx; 681 /* Enable the networks disabled during wpas_wps_reassoc */ 682 wpas_wps_reenable_networks(wpa_s); 683 } 684 685 686 int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s) 687 { 688 return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb, 689 wpa_s, NULL); 690 } 691 692 693 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s) 694 { 695 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS); 696 wpa_s->wps_success = 1; 697 wpas_notify_wps_event_success(wpa_s); 698 if (wpa_s->current_ssid) 699 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1); 700 wpa_s->extra_blacklist_count = 0; 701 702 /* 703 * Enable the networks disabled during wpas_wps_reassoc after 10 704 * seconds. The 10 seconds timer is to allow the data connection to be 705 * formed before allowing other networks to be selected. 706 */ 707 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 708 NULL); 709 710 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0); 711 } 712 713 714 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s, 715 struct wps_event_er_ap *ap) 716 { 717 char uuid_str[100]; 718 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 719 720 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 721 if (ap->pri_dev_type) 722 wps_dev_type_bin2str(ap->pri_dev_type, dev_type, 723 sizeof(dev_type)); 724 else 725 dev_type[0] = '\0'; 726 727 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR 728 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|", 729 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state, 730 ap->friendly_name ? ap->friendly_name : "", 731 ap->manufacturer ? ap->manufacturer : "", 732 ap->model_description ? ap->model_description : "", 733 ap->model_name ? ap->model_name : "", 734 ap->manufacturer_url ? ap->manufacturer_url : "", 735 ap->model_url ? ap->model_url : ""); 736 } 737 738 739 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s, 740 struct wps_event_er_ap *ap) 741 { 742 char uuid_str[100]; 743 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str)); 744 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str); 745 } 746 747 748 static void wpa_supplicant_wps_event_er_enrollee_add( 749 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 750 { 751 char uuid_str[100]; 752 char dev_type[WPS_DEV_TYPE_BUFSIZE]; 753 754 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 755 if (enrollee->pri_dev_type) 756 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type, 757 sizeof(dev_type)); 758 else 759 dev_type[0] = '\0'; 760 761 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR 762 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s " 763 "|%s|%s|%s|%s|%s|", 764 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received, 765 enrollee->config_methods, enrollee->dev_passwd_id, dev_type, 766 enrollee->dev_name ? enrollee->dev_name : "", 767 enrollee->manufacturer ? enrollee->manufacturer : "", 768 enrollee->model_name ? enrollee->model_name : "", 769 enrollee->model_number ? enrollee->model_number : "", 770 enrollee->serial_number ? enrollee->serial_number : ""); 771 } 772 773 774 static void wpa_supplicant_wps_event_er_enrollee_remove( 775 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee) 776 { 777 char uuid_str[100]; 778 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str)); 779 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR, 780 uuid_str, MAC2STR(enrollee->mac_addr)); 781 } 782 783 784 static void wpa_supplicant_wps_event_er_ap_settings( 785 struct wpa_supplicant *wpa_s, 786 struct wps_event_er_ap_settings *ap_settings) 787 { 788 char uuid_str[100]; 789 char key_str[65]; 790 const struct wps_credential *cred = ap_settings->cred; 791 792 key_str[0] = '\0'; 793 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) { 794 if (cred->key_len >= 8 && cred->key_len <= 64) { 795 os_memcpy(key_str, cred->key, cred->key_len); 796 key_str[cred->key_len] = '\0'; 797 } 798 } 799 800 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str)); 801 /* Use wpa_msg_ctrl to avoid showing the key in debug log */ 802 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS 803 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x " 804 "key=%s", 805 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len), 806 cred->auth_type, cred->encr_type, key_str); 807 } 808 809 810 static void wpa_supplicant_wps_event_er_set_sel_reg( 811 struct wpa_supplicant *wpa_s, 812 struct wps_event_er_set_selected_registrar *ev) 813 { 814 char uuid_str[100]; 815 816 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str)); 817 switch (ev->state) { 818 case WPS_ER_SET_SEL_REG_START: 819 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 820 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u " 821 "sel_reg_config_methods=0x%x", 822 uuid_str, ev->sel_reg, ev->dev_passwd_id, 823 ev->sel_reg_config_methods); 824 break; 825 case WPS_ER_SET_SEL_REG_DONE: 826 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG 827 "uuid=%s state=DONE", uuid_str); 828 break; 829 case WPS_ER_SET_SEL_REG_FAILED: 830 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG 831 "uuid=%s state=FAILED", uuid_str); 832 break; 833 } 834 } 835 836 837 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event, 838 union wps_event_data *data) 839 { 840 struct wpa_supplicant *wpa_s = ctx; 841 switch (event) { 842 case WPS_EV_M2D: 843 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d); 844 break; 845 case WPS_EV_FAIL: 846 wpa_supplicant_wps_event_fail(wpa_s, &data->fail); 847 break; 848 case WPS_EV_SUCCESS: 849 wpa_supplicant_wps_event_success(wpa_s); 850 break; 851 case WPS_EV_PWD_AUTH_FAIL: 852 #ifdef CONFIG_AP 853 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee) 854 wpa_supplicant_ap_pwd_auth_fail(wpa_s); 855 #endif /* CONFIG_AP */ 856 break; 857 case WPS_EV_PBC_OVERLAP: 858 break; 859 case WPS_EV_PBC_TIMEOUT: 860 break; 861 case WPS_EV_PBC_ACTIVE: 862 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE); 863 break; 864 case WPS_EV_PBC_DISABLE: 865 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE); 866 break; 867 case WPS_EV_ER_AP_ADD: 868 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap); 869 break; 870 case WPS_EV_ER_AP_REMOVE: 871 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap); 872 break; 873 case WPS_EV_ER_ENROLLEE_ADD: 874 wpa_supplicant_wps_event_er_enrollee_add(wpa_s, 875 &data->enrollee); 876 break; 877 case WPS_EV_ER_ENROLLEE_REMOVE: 878 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s, 879 &data->enrollee); 880 break; 881 case WPS_EV_ER_AP_SETTINGS: 882 wpa_supplicant_wps_event_er_ap_settings(wpa_s, 883 &data->ap_settings); 884 break; 885 case WPS_EV_ER_SET_SELECTED_REGISTRAR: 886 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s, 887 &data->set_sel_reg); 888 break; 889 case WPS_EV_AP_PIN_SUCCESS: 890 break; 891 } 892 } 893 894 895 static int wpa_supplicant_wps_rf_band(void *ctx) 896 { 897 struct wpa_supplicant *wpa_s = ctx; 898 899 if (!wpa_s->current_ssid || !wpa_s->assoc_freq) 900 return 0; 901 902 return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ : 903 (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ; 904 } 905 906 907 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid) 908 { 909 if (eap_is_wps_pbc_enrollee(&ssid->eap) || 910 eap_is_wps_pin_enrollee(&ssid->eap)) 911 return WPS_REQ_ENROLLEE; 912 else 913 return WPS_REQ_REGISTRAR; 914 } 915 916 917 static void wpas_clear_wps(struct wpa_supplicant *wpa_s) 918 { 919 int id; 920 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current; 921 922 wpa_s->after_wps = 0; 923 wpa_s->known_wps_freq = 0; 924 925 prev_current = wpa_s->current_ssid; 926 927 /* Enable the networks disabled during wpas_wps_reassoc */ 928 wpas_wps_reenable_networks(wpa_s); 929 930 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 931 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 932 933 /* Remove any existing WPS network from configuration */ 934 ssid = wpa_s->conf->ssid; 935 while (ssid) { 936 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { 937 if (ssid == wpa_s->current_ssid) { 938 wpa_s->own_disconnect_req = 1; 939 wpa_supplicant_deauthenticate( 940 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 941 } 942 id = ssid->id; 943 remove_ssid = ssid; 944 } else 945 id = -1; 946 ssid = ssid->next; 947 if (id >= 0) { 948 if (prev_current == remove_ssid) { 949 wpa_sm_set_config(wpa_s->wpa, NULL); 950 eapol_sm_notify_config(wpa_s->eapol, NULL, 951 NULL); 952 } 953 wpas_notify_network_removed(wpa_s, remove_ssid); 954 wpa_config_remove_network(wpa_s->conf, id); 955 } 956 } 957 958 wpas_wps_clear_ap_info(wpa_s); 959 } 960 961 962 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx) 963 { 964 struct wpa_supplicant *wpa_s = eloop_ctx; 965 union wps_event_data data; 966 967 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed " 968 "out"); 969 os_memset(&data, 0, sizeof(data)); 970 data.fail.config_error = WPS_CFG_MSG_TIMEOUT; 971 data.fail.error_indication = WPS_EI_NO_ERROR; 972 /* 973 * Call wpas_notify_wps_event_fail() directly instead of through 974 * wpa_supplicant_wps_event() which would end up registering unnecessary 975 * timeouts (those are only for the case where the failure happens 976 * during an EAP-WSC exchange). 977 */ 978 wpas_notify_wps_event_fail(wpa_s, &data.fail); 979 wpas_clear_wps(wpa_s); 980 } 981 982 983 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s, 984 int registrar, const u8 *dev_addr, 985 const u8 *bssid) 986 { 987 struct wpa_ssid *ssid; 988 989 ssid = wpa_config_add_network(wpa_s->conf); 990 if (ssid == NULL) 991 return NULL; 992 wpas_notify_network_added(wpa_s, ssid); 993 wpa_config_set_network_defaults(ssid); 994 ssid->temporary = 1; 995 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 || 996 wpa_config_set(ssid, "eap", "WSC", 0) < 0 || 997 wpa_config_set(ssid, "identity", registrar ? 998 "\"" WSC_ID_REGISTRAR "\"" : 999 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) { 1000 wpas_notify_network_removed(wpa_s, ssid); 1001 wpa_config_remove_network(wpa_s->conf, ssid->id); 1002 return NULL; 1003 } 1004 1005 #ifdef CONFIG_P2P 1006 if (dev_addr) 1007 os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN); 1008 #endif /* CONFIG_P2P */ 1009 1010 if (bssid) { 1011 #ifndef CONFIG_P2P 1012 struct wpa_bss *bss; 1013 int count = 0; 1014 #endif /* CONFIG_P2P */ 1015 1016 os_memcpy(ssid->bssid, bssid, ETH_ALEN); 1017 ssid->bssid_set = 1; 1018 1019 /* 1020 * Note: With P2P, the SSID may change at the time the WPS 1021 * provisioning is started, so better not filter the AP based 1022 * on the current SSID in the scan results. 1023 */ 1024 #ifndef CONFIG_P2P 1025 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1026 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0) 1027 continue; 1028 1029 os_free(ssid->ssid); 1030 ssid->ssid = os_memdup(bss->ssid, bss->ssid_len); 1031 if (ssid->ssid == NULL) 1032 break; 1033 ssid->ssid_len = bss->ssid_len; 1034 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " 1035 "scan results", 1036 ssid->ssid, ssid->ssid_len); 1037 count++; 1038 } 1039 1040 if (count > 1) { 1041 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " 1042 "for the AP; use wildcard"); 1043 os_free(ssid->ssid); 1044 ssid->ssid = NULL; 1045 ssid->ssid_len = 0; 1046 } 1047 #endif /* CONFIG_P2P */ 1048 } 1049 1050 return ssid; 1051 } 1052 1053 1054 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s, 1055 struct wpa_ssid *selected) 1056 { 1057 struct wpa_ssid *ssid; 1058 1059 if (wpa_s->current_ssid) { 1060 wpa_s->own_disconnect_req = 1; 1061 wpa_supplicant_deauthenticate( 1062 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1063 } 1064 1065 /* Mark all other networks disabled and trigger reassociation */ 1066 ssid = wpa_s->conf->ssid; 1067 while (ssid) { 1068 int was_disabled = ssid->disabled; 1069 ssid->disabled_for_connect = 0; 1070 /* 1071 * In case the network object corresponds to a persistent group 1072 * then do not send out network disabled signal. In addition, 1073 * do not change disabled status of persistent network objects 1074 * from 2 to 1 should we connect to another network. 1075 */ 1076 if (was_disabled != 2) { 1077 ssid->disabled = ssid != selected; 1078 if (was_disabled != ssid->disabled) { 1079 if (ssid->disabled) 1080 ssid->disabled_for_connect = 1; 1081 wpas_notify_network_enabled_changed(wpa_s, 1082 ssid); 1083 } 1084 } 1085 ssid = ssid->next; 1086 } 1087 } 1088 1089 1090 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, 1091 struct wpa_ssid *selected, const u8 *bssid, 1092 int freq) 1093 { 1094 struct wpa_bss *bss; 1095 1096 wpa_s->wps_run++; 1097 if (wpa_s->wps_run == 0) 1098 wpa_s->wps_run++; 1099 wpa_s->after_wps = 0; 1100 wpa_s->known_wps_freq = 0; 1101 if (freq) { 1102 wpa_s->after_wps = 5; 1103 wpa_s->wps_freq = freq; 1104 } else if (bssid) { 1105 bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 1106 if (bss && bss->freq > 0) { 1107 wpa_s->known_wps_freq = 1; 1108 wpa_s->wps_freq = bss->freq; 1109 } 1110 } 1111 1112 wpas_wps_temp_disable(wpa_s, selected); 1113 1114 wpa_s->disconnected = 0; 1115 wpa_s->reassociate = 1; 1116 wpa_s->scan_runs = 0; 1117 wpa_s->normal_scans = 0; 1118 wpa_s->wps_success = 0; 1119 wpa_s->blacklist_cleared = 0; 1120 1121 wpa_supplicant_cancel_sched_scan(wpa_s); 1122 wpa_supplicant_req_scan(wpa_s, 0, 0); 1123 } 1124 1125 1126 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 1127 int p2p_group) 1128 { 1129 struct wpa_ssid *ssid; 1130 1131 #ifdef CONFIG_AP 1132 if (wpa_s->ap_iface) { 1133 wpa_printf(MSG_DEBUG, 1134 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1135 return -1; 1136 } 1137 #endif /* CONFIG_AP */ 1138 wpas_clear_wps(wpa_s); 1139 ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid); 1140 if (ssid == NULL) 1141 return -1; 1142 ssid->temporary = 1; 1143 ssid->p2p_group = p2p_group; 1144 /* 1145 * When starting a regular WPS process (not P2P group formation) 1146 * the registrar/final station can be either AP or PCP 1147 * so use a "don't care" value for the pbss flag. 1148 */ 1149 if (!p2p_group) 1150 ssid->pbss = 2; 1151 #ifdef CONFIG_P2P 1152 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1153 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1154 if (ssid->ssid) { 1155 ssid->ssid_len = wpa_s->go_params->ssid_len; 1156 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1157 ssid->ssid_len); 1158 if (wpa_s->go_params->freq > 56160) { 1159 /* P2P in 60 GHz uses PBSS */ 1160 ssid->pbss = 1; 1161 } 1162 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1163 "SSID", ssid->ssid, ssid->ssid_len); 1164 } 1165 } 1166 #endif /* CONFIG_P2P */ 1167 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0) 1168 return -1; 1169 if (wpa_s->wps_fragment_size) 1170 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1171 wpa_supplicant_wps_event(wpa_s, WPS_EV_PBC_ACTIVE, NULL); 1172 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1173 wpa_s, NULL); 1174 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1175 return 0; 1176 } 1177 1178 1179 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s, 1180 const u8 *dev_addr, const u8 *bssid, 1181 const char *pin, int p2p_group, u16 dev_pw_id, 1182 const u8 *peer_pubkey_hash, 1183 const u8 *ssid_val, size_t ssid_len, int freq) 1184 { 1185 struct wpa_ssid *ssid; 1186 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN]; 1187 unsigned int rpin = 0; 1188 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10]; 1189 1190 #ifdef CONFIG_AP 1191 if (wpa_s->ap_iface) { 1192 wpa_printf(MSG_DEBUG, 1193 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1194 return -1; 1195 } 1196 #endif /* CONFIG_AP */ 1197 wpas_clear_wps(wpa_s); 1198 if (bssid && is_zero_ether_addr(bssid)) 1199 bssid = NULL; 1200 ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid); 1201 if (ssid == NULL) { 1202 wpa_printf(MSG_DEBUG, "WPS: Could not add network"); 1203 return -1; 1204 } 1205 ssid->temporary = 1; 1206 ssid->p2p_group = p2p_group; 1207 /* 1208 * When starting a regular WPS process (not P2P group formation) 1209 * the registrar/final station can be either AP or PCP 1210 * so use a "don't care" value for the pbss flag. 1211 */ 1212 if (!p2p_group) 1213 ssid->pbss = 2; 1214 if (ssid_val) { 1215 ssid->ssid = os_malloc(ssid_len); 1216 if (ssid->ssid) { 1217 os_memcpy(ssid->ssid, ssid_val, ssid_len); 1218 ssid->ssid_len = ssid_len; 1219 } 1220 } 1221 if (peer_pubkey_hash) { 1222 os_memcpy(hash, " pkhash=", 8); 1223 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8, 1224 peer_pubkey_hash, 1225 WPS_OOB_PUBKEY_HASH_LEN); 1226 } else { 1227 hash[0] = '\0'; 1228 } 1229 #ifdef CONFIG_P2P 1230 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1231 os_free(ssid->ssid); 1232 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1233 if (ssid->ssid) { 1234 ssid->ssid_len = wpa_s->go_params->ssid_len; 1235 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1236 ssid->ssid_len); 1237 if (wpa_s->go_params->freq > 56160) { 1238 /* P2P in 60 GHz uses PBSS */ 1239 ssid->pbss = 1; 1240 } 1241 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1242 "SSID", ssid->ssid, ssid->ssid_len); 1243 } 1244 } 1245 #endif /* CONFIG_P2P */ 1246 if (pin) 1247 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"", 1248 pin, dev_pw_id, hash); 1249 else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) { 1250 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"", 1251 dev_pw_id, hash); 1252 } else { 1253 if (wps_generate_pin(&rpin) < 0) { 1254 wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN"); 1255 return -1; 1256 } 1257 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"", 1258 rpin, dev_pw_id, hash); 1259 } 1260 if (wpa_config_set(ssid, "phase1", val, 0) < 0) { 1261 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val); 1262 return -1; 1263 } 1264 if (wpa_s->wps_fragment_size) 1265 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1266 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1267 wpa_s, NULL); 1268 wpa_s->wps_ap_iter = 1; 1269 wpas_wps_reassoc(wpa_s, ssid, bssid, freq); 1270 return rpin; 1271 } 1272 1273 1274 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 1275 const char *pin, int p2p_group, u16 dev_pw_id) 1276 { 1277 os_get_reltime(&wpa_s->wps_pin_start_time); 1278 return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group, 1279 dev_pw_id, NULL, NULL, 0, 0); 1280 } 1281 1282 1283 void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s) 1284 { 1285 union wps_event_data data; 1286 1287 os_memset(&data, 0, sizeof(data)); 1288 data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 1289 data.fail.error_indication = WPS_EI_NO_ERROR; 1290 /* 1291 * Call wpas_notify_wps_event_fail() directly instead of through 1292 * wpa_supplicant_wps_event() which would end up registering unnecessary 1293 * timeouts (those are only for the case where the failure happens 1294 * during an EAP-WSC exchange). 1295 */ 1296 wpas_notify_wps_event_fail(wpa_s, &data.fail); 1297 } 1298 1299 /* Cancel the wps pbc/pin requests */ 1300 int wpas_wps_cancel(struct wpa_supplicant *wpa_s) 1301 { 1302 #ifdef CONFIG_AP 1303 if (wpa_s->ap_iface) { 1304 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); 1305 return wpa_supplicant_ap_wps_cancel(wpa_s); 1306 } 1307 #endif /* CONFIG_AP */ 1308 1309 if (wpa_s->wpa_state == WPA_SCANNING || 1310 wpa_s->wpa_state == WPA_DISCONNECTED) { 1311 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); 1312 wpa_supplicant_cancel_scan(wpa_s); 1313 wpas_clear_wps(wpa_s); 1314 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { 1315 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " 1316 "deauthenticate"); 1317 wpa_s->own_disconnect_req = 1; 1318 wpa_supplicant_deauthenticate(wpa_s, 1319 WLAN_REASON_DEAUTH_LEAVING); 1320 wpas_clear_wps(wpa_s); 1321 } else { 1322 wpas_wps_reenable_networks(wpa_s); 1323 wpas_wps_clear_ap_info(wpa_s); 1324 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) > 1325 0) 1326 wpas_clear_wps(wpa_s); 1327 } 1328 1329 wpa_s->after_wps = 0; 1330 1331 return 0; 1332 } 1333 1334 1335 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, 1336 const char *pin, struct wps_new_ap_settings *settings) 1337 { 1338 struct wpa_ssid *ssid; 1339 char val[200]; 1340 char *pos, *end; 1341 int res; 1342 1343 #ifdef CONFIG_AP 1344 if (wpa_s->ap_iface) { 1345 wpa_printf(MSG_DEBUG, 1346 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1347 return -1; 1348 } 1349 #endif /* CONFIG_AP */ 1350 if (!pin) 1351 return -1; 1352 wpas_clear_wps(wpa_s); 1353 ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid); 1354 if (ssid == NULL) 1355 return -1; 1356 ssid->temporary = 1; 1357 pos = val; 1358 end = pos + sizeof(val); 1359 res = os_snprintf(pos, end - pos, "\"pin=%s", pin); 1360 if (os_snprintf_error(end - pos, res)) 1361 return -1; 1362 pos += res; 1363 if (settings) { 1364 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s " 1365 "new_encr=%s new_key=%s", 1366 settings->ssid_hex, settings->auth, 1367 settings->encr, settings->key_hex); 1368 if (os_snprintf_error(end - pos, res)) 1369 return -1; 1370 pos += res; 1371 } 1372 res = os_snprintf(pos, end - pos, "\""); 1373 if (os_snprintf_error(end - pos, res)) 1374 return -1; 1375 if (wpa_config_set(ssid, "phase1", val, 0) < 0) 1376 return -1; 1377 if (wpa_s->wps_fragment_size) 1378 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1379 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1380 wpa_s, NULL); 1381 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1382 return 0; 1383 } 1384 1385 1386 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, 1387 const u8 *p2p_dev_addr, const u8 *psk, 1388 size_t psk_len) 1389 { 1390 if (is_zero_ether_addr(p2p_dev_addr)) { 1391 wpa_printf(MSG_DEBUG, 1392 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, 1393 MAC2STR(mac_addr)); 1394 } else { 1395 wpa_printf(MSG_DEBUG, 1396 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR 1397 " P2P Device Addr " MACSTR, 1398 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); 1399 } 1400 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 1401 1402 /* TODO */ 1403 1404 return 0; 1405 } 1406 1407 1408 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 1409 const struct wps_device_data *dev) 1410 { 1411 char uuid[40], txt[400]; 1412 int len; 1413 char devtype[WPS_DEV_TYPE_BUFSIZE]; 1414 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 1415 return; 1416 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); 1417 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR 1418 " [%s|%s|%s|%s|%s|%s]", 1419 uuid, MAC2STR(dev->mac_addr), dev->device_name, 1420 dev->manufacturer, dev->model_name, 1421 dev->model_number, dev->serial_number, 1422 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 1423 sizeof(devtype))); 1424 if (!os_snprintf_error(sizeof(txt), len)) 1425 wpa_printf(MSG_INFO, "%s", txt); 1426 } 1427 1428 1429 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, 1430 u16 sel_reg_config_methods) 1431 { 1432 #ifdef CONFIG_WPS_ER 1433 struct wpa_supplicant *wpa_s = ctx; 1434 1435 if (wpa_s->wps_er == NULL) 1436 return; 1437 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " 1438 "dev_password_id=%u sel_reg_config_methods=0x%x", 1439 sel_reg, dev_passwd_id, sel_reg_config_methods); 1440 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, 1441 sel_reg_config_methods); 1442 #endif /* CONFIG_WPS_ER */ 1443 } 1444 1445 1446 static u16 wps_fix_config_methods(u16 config_methods) 1447 { 1448 if ((config_methods & 1449 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1450 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1451 wpa_printf(MSG_INFO, "WPS: Converting display to " 1452 "virtual_display for WPS 2.0 compliance"); 1453 config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1454 } 1455 if ((config_methods & 1456 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1457 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1458 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1459 "virtual_push_button for WPS 2.0 compliance"); 1460 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1461 } 1462 1463 return config_methods; 1464 } 1465 1466 1467 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, 1468 struct wps_context *wps) 1469 { 1470 char buf[50]; 1471 const char *src; 1472 1473 if (is_nil_uuid(wpa_s->conf->uuid)) { 1474 struct wpa_supplicant *first; 1475 first = wpa_s->global->ifaces; 1476 while (first && first->next) 1477 first = first->next; 1478 if (first && first != wpa_s) { 1479 if (wps != wpa_s->global->ifaces->wps) 1480 os_memcpy(wps->uuid, 1481 wpa_s->global->ifaces->wps->uuid, 1482 WPS_UUID_LEN); 1483 src = "from the first interface"; 1484 } else if (wpa_s->conf->auto_uuid == 1) { 1485 uuid_random(wps->uuid); 1486 src = "based on random data"; 1487 } else { 1488 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); 1489 src = "based on MAC address"; 1490 } 1491 } else { 1492 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 1493 src = "based on configuration"; 1494 } 1495 1496 uuid_bin2str(wps->uuid, buf, sizeof(buf)); 1497 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf); 1498 } 1499 1500 1501 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, 1502 struct wps_context *wps) 1503 { 1504 wpabuf_free(wps->dev.vendor_ext_m1); 1505 wps->dev.vendor_ext_m1 = NULL; 1506 1507 if (wpa_s->conf->wps_vendor_ext_m1) { 1508 wps->dev.vendor_ext_m1 = 1509 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); 1510 if (!wps->dev.vendor_ext_m1) { 1511 wpa_printf(MSG_ERROR, "WPS: Cannot " 1512 "allocate memory for vendor_ext_m1"); 1513 } 1514 } 1515 } 1516 1517 1518 int wpas_wps_init(struct wpa_supplicant *wpa_s) 1519 { 1520 struct wps_context *wps; 1521 struct wps_registrar_config rcfg; 1522 struct hostapd_hw_modes *modes; 1523 u16 m; 1524 1525 wps = os_zalloc(sizeof(*wps)); 1526 if (wps == NULL) 1527 return -1; 1528 1529 wps->cred_cb = wpa_supplicant_wps_cred; 1530 wps->event_cb = wpa_supplicant_wps_event; 1531 wps->rf_band_cb = wpa_supplicant_wps_rf_band; 1532 wps->cb_ctx = wpa_s; 1533 1534 wps->dev.device_name = wpa_s->conf->device_name; 1535 wps->dev.manufacturer = wpa_s->conf->manufacturer; 1536 wps->dev.model_name = wpa_s->conf->model_name; 1537 wps->dev.model_number = wpa_s->conf->model_number; 1538 wps->dev.serial_number = wpa_s->conf->serial_number; 1539 wps->config_methods = 1540 wps_config_methods_str2bin(wpa_s->conf->config_methods); 1541 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1542 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1543 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " 1544 "methods are not allowed at the same time"); 1545 os_free(wps); 1546 return -1; 1547 } 1548 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1549 wps->dev.config_methods = wps->config_methods; 1550 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1551 WPS_DEV_TYPE_LEN); 1552 1553 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1554 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1555 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); 1556 1557 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 1558 1559 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 1560 modes = wpa_s->hw.modes; 1561 if (modes) { 1562 for (m = 0; m < wpa_s->hw.num_modes; m++) { 1563 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || 1564 modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1565 wps->dev.rf_bands |= WPS_RF_24GHZ; 1566 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) 1567 wps->dev.rf_bands |= WPS_RF_50GHZ; 1568 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD) 1569 wps->dev.rf_bands |= WPS_RF_60GHZ; 1570 } 1571 } 1572 if (wps->dev.rf_bands == 0) { 1573 /* 1574 * Default to claiming support for both bands if the driver 1575 * does not provide support for fetching supported bands. 1576 */ 1577 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; 1578 } 1579 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 1580 wpas_wps_set_uuid(wpa_s, wps); 1581 1582 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1583 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1584 1585 os_memset(&rcfg, 0, sizeof(rcfg)); 1586 rcfg.new_psk_cb = wpas_wps_new_psk_cb; 1587 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; 1588 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; 1589 rcfg.cb_ctx = wpa_s; 1590 1591 wps->registrar = wps_registrar_init(wps, &rcfg); 1592 if (wps->registrar == NULL) { 1593 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); 1594 os_free(wps); 1595 return -1; 1596 } 1597 1598 wpa_s->wps = wps; 1599 1600 return 0; 1601 } 1602 1603 1604 #ifdef CONFIG_WPS_ER 1605 static void wpas_wps_nfc_clear(struct wps_context *wps) 1606 { 1607 wps->ap_nfc_dev_pw_id = 0; 1608 wpabuf_free(wps->ap_nfc_dh_pubkey); 1609 wps->ap_nfc_dh_pubkey = NULL; 1610 wpabuf_free(wps->ap_nfc_dh_privkey); 1611 wps->ap_nfc_dh_privkey = NULL; 1612 wpabuf_free(wps->ap_nfc_dev_pw); 1613 wps->ap_nfc_dev_pw = NULL; 1614 } 1615 #endif /* CONFIG_WPS_ER */ 1616 1617 1618 void wpas_wps_deinit(struct wpa_supplicant *wpa_s) 1619 { 1620 wpas_wps_assoc_with_cred_cancel(wpa_s); 1621 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 1622 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 1623 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 1624 wpas_wps_clear_ap_info(wpa_s); 1625 1626 #ifdef CONFIG_P2P 1627 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL); 1628 #endif /* CONFIG_P2P */ 1629 1630 if (wpa_s->wps == NULL) 1631 return; 1632 1633 #ifdef CONFIG_WPS_ER 1634 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1635 wpa_s->wps_er = NULL; 1636 wpas_wps_nfc_clear(wpa_s->wps); 1637 #endif /* CONFIG_WPS_ER */ 1638 1639 wps_registrar_deinit(wpa_s->wps->registrar); 1640 wpabuf_free(wpa_s->wps->dh_pubkey); 1641 wpabuf_free(wpa_s->wps->dh_privkey); 1642 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); 1643 os_free(wpa_s->wps->network_key); 1644 os_free(wpa_s->wps); 1645 wpa_s->wps = NULL; 1646 } 1647 1648 1649 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, 1650 struct wpa_ssid *ssid, struct wpa_bss *bss) 1651 { 1652 struct wpabuf *wps_ie; 1653 1654 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) 1655 return -1; 1656 1657 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1658 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1659 if (!wps_ie) { 1660 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1661 return 0; 1662 } 1663 1664 if (!wps_is_selected_pbc_registrar(wps_ie)) { 1665 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1666 "without active PBC Registrar"); 1667 wpabuf_free(wps_ie); 1668 return 0; 1669 } 1670 1671 /* TODO: overlap detection */ 1672 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1673 "(Active PBC)"); 1674 wpabuf_free(wps_ie); 1675 return 1; 1676 } 1677 1678 if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1679 if (!wps_ie) { 1680 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1681 return 0; 1682 } 1683 1684 /* 1685 * Start with WPS APs that advertise our address as an 1686 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and 1687 * allow any WPS AP after couple of scans since some APs do not 1688 * set Selected Registrar attribute properly when using 1689 * external Registrar. 1690 */ 1691 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { 1692 struct os_reltime age; 1693 1694 os_reltime_age(&wpa_s->wps_pin_start_time, &age); 1695 1696 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG || 1697 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) { 1698 wpa_printf(MSG_DEBUG, 1699 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)", 1700 wpa_s->scan_runs, (int) age.sec); 1701 wpabuf_free(wps_ie); 1702 return 0; 1703 } 1704 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1705 } else { 1706 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1707 "(Authorized MAC or Active PIN)"); 1708 } 1709 wpabuf_free(wps_ie); 1710 return 1; 1711 } 1712 1713 if (wps_ie) { 1714 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1715 wpabuf_free(wps_ie); 1716 return 1; 1717 } 1718 1719 return -1; 1720 } 1721 1722 1723 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, 1724 struct wpa_ssid *ssid, 1725 struct wpa_bss *bss) 1726 { 1727 struct wpabuf *wps_ie = NULL; 1728 int ret = 0; 1729 1730 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1731 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1732 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { 1733 /* allow wildcard SSID for WPS PBC */ 1734 ret = 1; 1735 } 1736 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1737 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1738 if (wps_ie && 1739 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || 1740 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { 1741 /* allow wildcard SSID for WPS PIN */ 1742 ret = 1; 1743 } 1744 } 1745 1746 if (!ret && ssid->bssid_set && 1747 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { 1748 /* allow wildcard SSID due to hardcoded BSSID match */ 1749 ret = 1; 1750 } 1751 1752 #ifdef CONFIG_WPS_STRICT 1753 if (wps_ie) { 1754 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > 1755 0, bss->bssid) < 0) 1756 ret = 0; 1757 if (bss->beacon_ie_len) { 1758 struct wpabuf *bcn_wps; 1759 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( 1760 bss, WPS_IE_VENDOR_TYPE); 1761 if (bcn_wps == NULL) { 1762 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " 1763 "missing from AP Beacon"); 1764 ret = 0; 1765 } else { 1766 if (wps_validate_beacon(wps_ie) < 0) 1767 ret = 0; 1768 wpabuf_free(bcn_wps); 1769 } 1770 } 1771 } 1772 #endif /* CONFIG_WPS_STRICT */ 1773 1774 wpabuf_free(wps_ie); 1775 1776 return ret; 1777 } 1778 1779 1780 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, 1781 struct wpa_bss *selected, struct wpa_ssid *ssid) 1782 { 1783 const u8 *sel_uuid; 1784 struct wpabuf *wps_ie; 1785 int ret = 0; 1786 size_t i; 1787 1788 if (!eap_is_wps_pbc_enrollee(&ssid->eap)) 1789 return 0; 1790 1791 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " 1792 "present in scan results; selected BSSID " MACSTR, 1793 MAC2STR(selected->bssid)); 1794 1795 /* Make sure that only one AP is in active PBC mode */ 1796 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); 1797 if (wps_ie) { 1798 sel_uuid = wps_get_uuid_e(wps_ie); 1799 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", 1800 sel_uuid, UUID_LEN); 1801 } else { 1802 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " 1803 "WPS IE?!"); 1804 sel_uuid = NULL; 1805 } 1806 1807 for (i = 0; i < wpa_s->num_wps_ap; i++) { 1808 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 1809 1810 if (!ap->pbc_active || 1811 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0) 1812 continue; 1813 1814 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " 1815 MACSTR, MAC2STR(ap->bssid)); 1816 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", 1817 ap->uuid, UUID_LEN); 1818 if (sel_uuid == NULL || 1819 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) { 1820 ret = 1; /* PBC overlap */ 1821 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " 1822 MACSTR " and " MACSTR, 1823 MAC2STR(selected->bssid), 1824 MAC2STR(ap->bssid)); 1825 break; 1826 } 1827 1828 /* TODO: verify that this is reasonable dual-band situation */ 1829 } 1830 1831 wpabuf_free(wps_ie); 1832 1833 return ret; 1834 } 1835 1836 1837 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) 1838 { 1839 struct wpa_bss *bss; 1840 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; 1841 1842 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) 1843 return; 1844 1845 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1846 struct wpabuf *ie; 1847 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1848 if (!ie) 1849 continue; 1850 if (wps_is_selected_pbc_registrar(ie)) 1851 pbc++; 1852 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) 1853 auth++; 1854 else if (wps_is_selected_pin_registrar(ie)) 1855 pin++; 1856 else 1857 wps++; 1858 wpabuf_free(ie); 1859 } 1860 1861 if (pbc) 1862 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); 1863 else if (auth) 1864 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); 1865 else if (pin) 1866 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); 1867 else if (wps) 1868 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); 1869 } 1870 1871 1872 int wpas_wps_searching(struct wpa_supplicant *wpa_s) 1873 { 1874 struct wpa_ssid *ssid; 1875 1876 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1877 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) 1878 return 1; 1879 } 1880 1881 return 0; 1882 } 1883 1884 1885 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 1886 char *end) 1887 { 1888 struct wpabuf *wps_ie; 1889 int ret; 1890 1891 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); 1892 if (wps_ie == NULL) 1893 return 0; 1894 1895 ret = wps_attr_text(wps_ie, buf, end); 1896 wpabuf_free(wps_ie); 1897 return ret; 1898 } 1899 1900 1901 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) 1902 { 1903 #ifdef CONFIG_WPS_ER 1904 if (wpa_s->wps_er) { 1905 wps_er_refresh(wpa_s->wps_er); 1906 return 0; 1907 } 1908 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); 1909 if (wpa_s->wps_er == NULL) 1910 return -1; 1911 return 0; 1912 #else /* CONFIG_WPS_ER */ 1913 return 0; 1914 #endif /* CONFIG_WPS_ER */ 1915 } 1916 1917 1918 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s) 1919 { 1920 #ifdef CONFIG_WPS_ER 1921 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1922 wpa_s->wps_er = NULL; 1923 #endif /* CONFIG_WPS_ER */ 1924 } 1925 1926 1927 #ifdef CONFIG_WPS_ER 1928 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, 1929 const char *uuid, const char *pin) 1930 { 1931 u8 u[UUID_LEN]; 1932 const u8 *use_uuid = NULL; 1933 u8 addr_buf[ETH_ALEN]; 1934 1935 if (os_strcmp(uuid, "any") == 0) { 1936 } else if (uuid_str2bin(uuid, u) == 0) { 1937 use_uuid = u; 1938 } else if (hwaddr_aton(uuid, addr_buf) == 0) { 1939 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); 1940 if (use_uuid == NULL) 1941 return -1; 1942 } else 1943 return -1; 1944 return wps_registrar_add_pin(wpa_s->wps->registrar, addr, 1945 use_uuid, 1946 (const u8 *) pin, os_strlen(pin), 300); 1947 } 1948 1949 1950 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) 1951 { 1952 u8 u[UUID_LEN], *use_uuid = NULL; 1953 u8 addr[ETH_ALEN], *use_addr = NULL; 1954 1955 if (uuid_str2bin(uuid, u) == 0) 1956 use_uuid = u; 1957 else if (hwaddr_aton(uuid, addr) == 0) 1958 use_addr = addr; 1959 else 1960 return -1; 1961 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); 1962 } 1963 1964 1965 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, 1966 const char *pin) 1967 { 1968 u8 u[UUID_LEN], *use_uuid = NULL; 1969 u8 addr[ETH_ALEN], *use_addr = NULL; 1970 1971 if (uuid_str2bin(uuid, u) == 0) 1972 use_uuid = u; 1973 else if (hwaddr_aton(uuid, addr) == 0) 1974 use_addr = addr; 1975 else 1976 return -1; 1977 1978 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, 1979 os_strlen(pin)); 1980 } 1981 1982 1983 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, 1984 struct wps_credential *cred) 1985 { 1986 os_memset(cred, 0, sizeof(*cred)); 1987 if (ssid->ssid_len > SSID_MAX_LEN) 1988 return -1; 1989 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); 1990 cred->ssid_len = ssid->ssid_len; 1991 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 1992 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? 1993 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; 1994 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 1995 cred->encr_type = WPS_ENCR_AES; 1996 else 1997 cred->encr_type = WPS_ENCR_TKIP; 1998 if (ssid->passphrase) { 1999 cred->key_len = os_strlen(ssid->passphrase); 2000 if (cred->key_len >= 64) 2001 return -1; 2002 os_memcpy(cred->key, ssid->passphrase, cred->key_len); 2003 } else if (ssid->psk_set) { 2004 cred->key_len = 32; 2005 os_memcpy(cred->key, ssid->psk, 32); 2006 } else 2007 return -1; 2008 } else { 2009 cred->auth_type = WPS_AUTH_OPEN; 2010 cred->encr_type = WPS_ENCR_NONE; 2011 } 2012 2013 return 0; 2014 } 2015 2016 2017 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, 2018 int id) 2019 { 2020 u8 u[UUID_LEN], *use_uuid = NULL; 2021 u8 addr[ETH_ALEN], *use_addr = NULL; 2022 struct wpa_ssid *ssid; 2023 struct wps_credential cred; 2024 int ret; 2025 2026 if (uuid_str2bin(uuid, u) == 0) 2027 use_uuid = u; 2028 else if (hwaddr_aton(uuid, addr) == 0) 2029 use_addr = addr; 2030 else 2031 return -1; 2032 ssid = wpa_config_get_network(wpa_s->conf, id); 2033 if (ssid == NULL || ssid->ssid == NULL) 2034 return -1; 2035 2036 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2037 return -1; 2038 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); 2039 os_memset(&cred, 0, sizeof(cred)); 2040 return ret; 2041 } 2042 2043 2044 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, 2045 const char *pin, struct wps_new_ap_settings *settings) 2046 { 2047 u8 u[UUID_LEN], *use_uuid = NULL; 2048 u8 addr[ETH_ALEN], *use_addr = NULL; 2049 struct wps_credential cred; 2050 size_t len; 2051 2052 if (uuid_str2bin(uuid, u) == 0) 2053 use_uuid = u; 2054 else if (hwaddr_aton(uuid, addr) == 0) 2055 use_addr = addr; 2056 else 2057 return -1; 2058 if (settings->ssid_hex == NULL || settings->auth == NULL || 2059 settings->encr == NULL || settings->key_hex == NULL) 2060 return -1; 2061 2062 os_memset(&cred, 0, sizeof(cred)); 2063 len = os_strlen(settings->ssid_hex); 2064 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 2065 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) 2066 return -1; 2067 cred.ssid_len = len / 2; 2068 2069 len = os_strlen(settings->key_hex); 2070 if ((len & 1) || len > 2 * sizeof(cred.key) || 2071 hexstr2bin(settings->key_hex, cred.key, len / 2)) 2072 return -1; 2073 cred.key_len = len / 2; 2074 2075 if (os_strcmp(settings->auth, "OPEN") == 0) 2076 cred.auth_type = WPS_AUTH_OPEN; 2077 else if (os_strcmp(settings->auth, "WPAPSK") == 0) 2078 cred.auth_type = WPS_AUTH_WPAPSK; 2079 else if (os_strcmp(settings->auth, "WPA2PSK") == 0) 2080 cred.auth_type = WPS_AUTH_WPA2PSK; 2081 else 2082 return -1; 2083 2084 if (os_strcmp(settings->encr, "NONE") == 0) 2085 cred.encr_type = WPS_ENCR_NONE; 2086 #ifdef CONFIG_TESTING_OPTIONS 2087 else if (os_strcmp(settings->encr, "WEP") == 0) 2088 cred.encr_type = WPS_ENCR_WEP; 2089 #endif /* CONFIG_TESTING_OPTIONS */ 2090 else if (os_strcmp(settings->encr, "TKIP") == 0) 2091 cred.encr_type = WPS_ENCR_TKIP; 2092 else if (os_strcmp(settings->encr, "CCMP") == 0) 2093 cred.encr_type = WPS_ENCR_AES; 2094 else 2095 return -1; 2096 2097 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, 2098 (const u8 *) pin, os_strlen(pin), &cred); 2099 } 2100 2101 2102 #ifdef CONFIG_WPS_NFC 2103 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, 2104 int ndef, const char *uuid) 2105 { 2106 struct wpabuf *ret; 2107 u8 u[UUID_LEN], *use_uuid = NULL; 2108 u8 addr[ETH_ALEN], *use_addr = NULL; 2109 2110 if (!wpa_s->wps_er) 2111 return NULL; 2112 2113 if (uuid_str2bin(uuid, u) == 0) 2114 use_uuid = u; 2115 else if (hwaddr_aton(uuid, addr) == 0) 2116 use_addr = addr; 2117 else 2118 return NULL; 2119 2120 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 2121 if (ndef && ret) { 2122 struct wpabuf *tmp; 2123 tmp = ndef_build_wifi(ret); 2124 wpabuf_free(ret); 2125 if (tmp == NULL) 2126 return NULL; 2127 ret = tmp; 2128 } 2129 2130 return ret; 2131 } 2132 #endif /* CONFIG_WPS_NFC */ 2133 2134 2135 static int callbacks_pending = 0; 2136 2137 static void wpas_wps_terminate_cb(void *ctx) 2138 { 2139 wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); 2140 if (--callbacks_pending <= 0) 2141 eloop_terminate(); 2142 } 2143 #endif /* CONFIG_WPS_ER */ 2144 2145 2146 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) 2147 { 2148 #ifdef CONFIG_WPS_ER 2149 if (wpa_s->wps_er) { 2150 callbacks_pending++; 2151 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); 2152 wpa_s->wps_er = NULL; 2153 return 1; 2154 } 2155 #endif /* CONFIG_WPS_ER */ 2156 return 0; 2157 } 2158 2159 2160 void wpas_wps_update_config(struct wpa_supplicant *wpa_s) 2161 { 2162 struct wps_context *wps = wpa_s->wps; 2163 2164 if (wps == NULL) 2165 return; 2166 2167 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { 2168 wps->config_methods = wps_config_methods_str2bin( 2169 wpa_s->conf->config_methods); 2170 if ((wps->config_methods & 2171 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 2172 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 2173 wpa_printf(MSG_ERROR, "WPS: Both Label and Display " 2174 "config methods are not allowed at the " 2175 "same time"); 2176 wps->config_methods &= ~WPS_CONFIG_LABEL; 2177 } 2178 } 2179 wps->config_methods = wps_fix_config_methods(wps->config_methods); 2180 wps->dev.config_methods = wps->config_methods; 2181 2182 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) 2183 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 2184 WPS_DEV_TYPE_LEN); 2185 2186 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { 2187 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 2188 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 2189 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); 2190 } 2191 2192 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) 2193 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 2194 2195 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) 2196 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 2197 2198 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) 2199 wpas_wps_set_uuid(wpa_s, wps); 2200 2201 if (wpa_s->conf->changed_parameters & 2202 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { 2203 /* Update pointers to make sure they refer current values */ 2204 wps->dev.device_name = wpa_s->conf->device_name; 2205 wps->dev.manufacturer = wpa_s->conf->manufacturer; 2206 wps->dev.model_name = wpa_s->conf->model_name; 2207 wps->dev.model_number = wpa_s->conf->model_number; 2208 wps->dev.serial_number = wpa_s->conf->serial_number; 2209 } 2210 } 2211 2212 2213 #ifdef CONFIG_WPS_NFC 2214 2215 #ifdef CONFIG_WPS_ER 2216 struct wpabuf * 2217 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, 2218 struct wpa_ssid *ssid) 2219 { 2220 struct wpabuf *ret; 2221 struct wps_credential cred; 2222 2223 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2224 return NULL; 2225 2226 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); 2227 2228 if (ndef && ret) { 2229 struct wpabuf *tmp; 2230 tmp = ndef_build_wifi(ret); 2231 wpabuf_free(ret); 2232 if (tmp == NULL) 2233 return NULL; 2234 ret = tmp; 2235 } 2236 2237 return ret; 2238 } 2239 #endif /* CONFIG_WPS_ER */ 2240 2241 2242 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 2243 int ndef, const char *id_str) 2244 { 2245 #ifdef CONFIG_WPS_ER 2246 if (id_str) { 2247 int id; 2248 char *end = NULL; 2249 struct wpa_ssid *ssid; 2250 2251 id = strtol(id_str, &end, 10); 2252 if (end && *end) 2253 return NULL; 2254 2255 ssid = wpa_config_get_network(wpa_s->conf, id); 2256 if (ssid == NULL) 2257 return NULL; 2258 return wpas_wps_network_config_token(wpa_s, ndef, ssid); 2259 } 2260 #endif /* CONFIG_WPS_ER */ 2261 #ifdef CONFIG_AP 2262 if (wpa_s->ap_iface) 2263 return wpas_ap_wps_nfc_config_token(wpa_s, ndef); 2264 #endif /* CONFIG_AP */ 2265 return NULL; 2266 } 2267 2268 2269 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) 2270 { 2271 if (wpa_s->conf->wps_nfc_pw_from_config) { 2272 return wps_nfc_token_build(ndef, 2273 wpa_s->conf->wps_nfc_dev_pw_id, 2274 wpa_s->conf->wps_nfc_dh_pubkey, 2275 wpa_s->conf->wps_nfc_dev_pw); 2276 } 2277 2278 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, 2279 &wpa_s->conf->wps_nfc_dh_pubkey, 2280 &wpa_s->conf->wps_nfc_dh_privkey, 2281 &wpa_s->conf->wps_nfc_dev_pw); 2282 } 2283 2284 2285 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr, 2286 const u8 *bssid, 2287 const struct wpabuf *dev_pw, u16 dev_pw_id, 2288 int p2p_group, const u8 *peer_pubkey_hash, 2289 const u8 *ssid, size_t ssid_len, int freq) 2290 { 2291 struct wps_context *wps = wpa_s->wps; 2292 char pw[32 * 2 + 1]; 2293 2294 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2295 dev_pw = wpa_s->conf->wps_nfc_dev_pw; 2296 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; 2297 } 2298 2299 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || 2300 wpa_s->conf->wps_nfc_dh_privkey == NULL) { 2301 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - " 2302 "cannot start NFC-triggered connection"); 2303 return -1; 2304 } 2305 2306 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2307 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - " 2308 "cannot start NFC-triggered connection", dev_pw_id); 2309 return -1; 2310 } 2311 2312 dh5_free(wps->dh_ctx); 2313 wpabuf_free(wps->dh_pubkey); 2314 wpabuf_free(wps->dh_privkey); 2315 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2316 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2317 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 2318 wps->dh_ctx = NULL; 2319 wpabuf_free(wps->dh_pubkey); 2320 wps->dh_pubkey = NULL; 2321 wpabuf_free(wps->dh_privkey); 2322 wps->dh_privkey = NULL; 2323 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key"); 2324 return -1; 2325 } 2326 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 2327 if (wps->dh_ctx == NULL) { 2328 wpabuf_free(wps->dh_pubkey); 2329 wps->dh_pubkey = NULL; 2330 wpabuf_free(wps->dh_privkey); 2331 wps->dh_privkey = NULL; 2332 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context"); 2333 return -1; 2334 } 2335 2336 if (dev_pw) { 2337 wpa_snprintf_hex_uppercase(pw, sizeof(pw), 2338 wpabuf_head(dev_pw), 2339 wpabuf_len(dev_pw)); 2340 } 2341 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid, 2342 dev_pw ? pw : NULL, 2343 p2p_group, dev_pw_id, peer_pubkey_hash, 2344 ssid, ssid_len, freq); 2345 } 2346 2347 2348 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, 2349 struct wps_parse_attr *attr) 2350 { 2351 /* 2352 * Disable existing networks temporarily to allow the newly learned 2353 * credential to be preferred. Enable the temporarily disabled networks 2354 * after 10 seconds. 2355 */ 2356 wpas_wps_temp_disable(wpa_s, NULL); 2357 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 2358 NULL); 2359 2360 if (wps_oob_use_cred(wpa_s->wps, attr) < 0) 2361 return -1; 2362 2363 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2364 return 0; 2365 2366 if (attr->ap_channel) { 2367 u16 chan = WPA_GET_BE16(attr->ap_channel); 2368 int freq = 0; 2369 2370 if (chan >= 1 && chan <= 13) 2371 freq = 2407 + 5 * chan; 2372 else if (chan == 14) 2373 freq = 2484; 2374 else if (chan >= 30) 2375 freq = 5000 + 5 * chan; 2376 2377 if (freq) { 2378 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz", 2379 chan, freq); 2380 wpa_s->after_wps = 5; 2381 wpa_s->wps_freq = freq; 2382 } 2383 } 2384 2385 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " 2386 "based on the received credential added"); 2387 wpa_s->normal_scans = 0; 2388 wpa_supplicant_reinit_autoscan(wpa_s); 2389 wpa_s->disconnected = 0; 2390 wpa_s->reassociate = 1; 2391 2392 wpa_supplicant_cancel_sched_scan(wpa_s); 2393 wpa_supplicant_req_scan(wpa_s, 0, 0); 2394 2395 return 0; 2396 } 2397 2398 2399 #ifdef CONFIG_WPS_ER 2400 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, 2401 struct wps_parse_attr *attr) 2402 { 2403 return wps_registrar_add_nfc_password_token( 2404 wpa_s->wps->registrar, attr->oob_dev_password, 2405 attr->oob_dev_password_len); 2406 } 2407 #endif /* CONFIG_WPS_ER */ 2408 2409 2410 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, 2411 const struct wpabuf *wps) 2412 { 2413 struct wps_parse_attr attr; 2414 2415 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2416 2417 if (wps_parse_msg(wps, &attr)) { 2418 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2419 return -1; 2420 } 2421 2422 if (attr.num_cred) 2423 return wpas_wps_use_cred(wpa_s, &attr); 2424 2425 #ifdef CONFIG_WPS_ER 2426 if (attr.oob_dev_password) 2427 return wpas_wps_add_nfc_password_token(wpa_s, &attr); 2428 #endif /* CONFIG_WPS_ER */ 2429 2430 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2431 return -1; 2432 } 2433 2434 2435 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, 2436 const struct wpabuf *data, int forced_freq) 2437 { 2438 const struct wpabuf *wps = data; 2439 struct wpabuf *tmp = NULL; 2440 int ret; 2441 2442 if (wpabuf_len(data) < 4) 2443 return -1; 2444 2445 if (*wpabuf_head_u8(data) != 0x10) { 2446 /* Assume this contains full NDEF record */ 2447 tmp = ndef_parse_wifi(data); 2448 if (tmp == NULL) { 2449 #ifdef CONFIG_P2P 2450 tmp = ndef_parse_p2p(data); 2451 if (tmp) { 2452 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp, 2453 forced_freq); 2454 wpabuf_free(tmp); 2455 return ret; 2456 } 2457 #endif /* CONFIG_P2P */ 2458 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2459 return -1; 2460 } 2461 wps = tmp; 2462 } 2463 2464 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2465 wpabuf_free(tmp); 2466 return ret; 2467 } 2468 2469 2470 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, 2471 int ndef) 2472 { 2473 struct wpabuf *ret; 2474 2475 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && 2476 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2477 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2478 return NULL; 2479 2480 ret = wps_build_nfc_handover_req(wpa_s->wps, 2481 wpa_s->conf->wps_nfc_dh_pubkey); 2482 2483 if (ndef && ret) { 2484 struct wpabuf *tmp; 2485 tmp = ndef_build_wifi(ret); 2486 wpabuf_free(ret); 2487 if (tmp == NULL) 2488 return NULL; 2489 ret = tmp; 2490 } 2491 2492 return ret; 2493 } 2494 2495 2496 #ifdef CONFIG_WPS_NFC 2497 2498 static struct wpabuf * 2499 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef, 2500 const char *uuid) 2501 { 2502 #ifdef CONFIG_WPS_ER 2503 struct wpabuf *ret; 2504 u8 u[UUID_LEN], *use_uuid = NULL; 2505 u8 addr[ETH_ALEN], *use_addr = NULL; 2506 struct wps_context *wps = wpa_s->wps; 2507 2508 if (wps == NULL) 2509 return NULL; 2510 2511 if (uuid == NULL) 2512 return NULL; 2513 if (uuid_str2bin(uuid, u) == 0) 2514 use_uuid = u; 2515 else if (hwaddr_aton(uuid, addr) == 0) 2516 use_addr = addr; 2517 else 2518 return NULL; 2519 2520 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) { 2521 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2522 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2523 return NULL; 2524 } 2525 2526 wpas_wps_nfc_clear(wps); 2527 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2528 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2529 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2530 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2531 wpas_wps_nfc_clear(wps); 2532 return NULL; 2533 } 2534 2535 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid, 2536 use_addr, wpa_s->conf->wps_nfc_dh_pubkey); 2537 if (ndef && ret) { 2538 struct wpabuf *tmp; 2539 tmp = ndef_build_wifi(ret); 2540 wpabuf_free(ret); 2541 if (tmp == NULL) 2542 return NULL; 2543 ret = tmp; 2544 } 2545 2546 return ret; 2547 #else /* CONFIG_WPS_ER */ 2548 return NULL; 2549 #endif /* CONFIG_WPS_ER */ 2550 } 2551 #endif /* CONFIG_WPS_NFC */ 2552 2553 2554 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2555 int ndef, int cr, const char *uuid) 2556 { 2557 struct wpabuf *ret; 2558 if (!cr) 2559 return NULL; 2560 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); 2561 if (ret) 2562 return ret; 2563 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); 2564 } 2565 2566 2567 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, 2568 const struct wpabuf *data) 2569 { 2570 struct wpabuf *wps; 2571 int ret = -1; 2572 u16 wsc_len; 2573 const u8 *pos; 2574 struct wpabuf msg; 2575 struct wps_parse_attr attr; 2576 u16 dev_pw_id; 2577 const u8 *bssid = NULL; 2578 int freq = 0; 2579 2580 wps = ndef_parse_wifi(data); 2581 if (wps == NULL) 2582 return -1; 2583 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2584 "payload from NFC connection handover"); 2585 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2586 if (wpabuf_len(wps) < 2) { 2587 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select " 2588 "Message"); 2589 goto out; 2590 } 2591 pos = wpabuf_head(wps); 2592 wsc_len = WPA_GET_BE16(pos); 2593 if (wsc_len > wpabuf_len(wps) - 2) { 2594 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2595 "in Wi-Fi Handover Select Message", wsc_len); 2596 goto out; 2597 } 2598 pos += 2; 2599 2600 wpa_hexdump(MSG_DEBUG, 2601 "WPS: WSC attributes in Wi-Fi Handover Select Message", 2602 pos, wsc_len); 2603 if (wsc_len < wpabuf_len(wps) - 2) { 2604 wpa_hexdump(MSG_DEBUG, 2605 "WPS: Ignore extra data after WSC attributes", 2606 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2607 } 2608 2609 wpabuf_set(&msg, pos, wsc_len); 2610 ret = wps_parse_msg(&msg, &attr); 2611 if (ret < 0) { 2612 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2613 "Wi-Fi Handover Select Message"); 2614 goto out; 2615 } 2616 2617 if (attr.oob_dev_password == NULL || 2618 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2619 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2620 "included in Wi-Fi Handover Select Message"); 2621 ret = -1; 2622 goto out; 2623 } 2624 2625 if (attr.ssid == NULL) { 2626 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover " 2627 "Select Message"); 2628 ret = -1; 2629 goto out; 2630 } 2631 2632 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len); 2633 2634 if (attr.mac_addr) { 2635 bssid = attr.mac_addr; 2636 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR, 2637 MAC2STR(bssid)); 2638 } 2639 2640 if (attr.rf_bands) 2641 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands); 2642 2643 if (attr.ap_channel) { 2644 u16 chan = WPA_GET_BE16(attr.ap_channel); 2645 2646 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan); 2647 2648 if (chan >= 1 && chan <= 13 && 2649 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ)) 2650 freq = 2407 + 5 * chan; 2651 else if (chan == 14 && 2652 (attr.rf_bands == NULL || 2653 *attr.rf_bands & WPS_RF_24GHZ)) 2654 freq = 2484; 2655 else if (chan >= 30 && 2656 (attr.rf_bands == NULL || 2657 *attr.rf_bands & WPS_RF_50GHZ)) 2658 freq = 5000 + 5 * chan; 2659 else if (chan >= 1 && chan <= 4 && 2660 (attr.rf_bands == NULL || 2661 *attr.rf_bands & WPS_RF_60GHZ)) 2662 freq = 56160 + 2160 * chan; 2663 2664 if (freq) { 2665 wpa_printf(MSG_DEBUG, 2666 "WPS: AP indicated channel %u -> %u MHz", 2667 chan, freq); 2668 } 2669 } 2670 2671 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2672 attr.oob_dev_password, attr.oob_dev_password_len); 2673 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2674 WPS_OOB_PUBKEY_HASH_LEN); 2675 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2676 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2677 "%u in Wi-Fi Handover Select Message", dev_pw_id); 2678 ret = -1; 2679 goto out; 2680 } 2681 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash", 2682 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2683 2684 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0, 2685 attr.oob_dev_password, 2686 attr.ssid, attr.ssid_len, freq); 2687 2688 out: 2689 wpabuf_free(wps); 2690 return ret; 2691 } 2692 2693 2694 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2695 const struct wpabuf *req, 2696 const struct wpabuf *sel) 2697 { 2698 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); 2699 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); 2700 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); 2701 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); 2702 } 2703 2704 2705 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2706 const struct wpabuf *req, 2707 const struct wpabuf *sel) 2708 { 2709 struct wpabuf *wps; 2710 int ret = -1; 2711 u16 wsc_len; 2712 const u8 *pos; 2713 struct wpabuf msg; 2714 struct wps_parse_attr attr; 2715 u16 dev_pw_id; 2716 2717 /* 2718 * Enrollee/station is always initiator of the NFC connection handover, 2719 * so use the request message here to find Enrollee public key hash. 2720 */ 2721 wps = ndef_parse_wifi(req); 2722 if (wps == NULL) 2723 return -1; 2724 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2725 "payload from NFC connection handover"); 2726 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2727 if (wpabuf_len(wps) < 2) { 2728 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2729 "Message"); 2730 goto out; 2731 } 2732 pos = wpabuf_head(wps); 2733 wsc_len = WPA_GET_BE16(pos); 2734 if (wsc_len > wpabuf_len(wps) - 2) { 2735 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2736 "in rt Wi-Fi Handover Request Message", wsc_len); 2737 goto out; 2738 } 2739 pos += 2; 2740 2741 wpa_hexdump(MSG_DEBUG, 2742 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2743 pos, wsc_len); 2744 if (wsc_len < wpabuf_len(wps) - 2) { 2745 wpa_hexdump(MSG_DEBUG, 2746 "WPS: Ignore extra data after WSC attributes", 2747 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2748 } 2749 2750 wpabuf_set(&msg, pos, wsc_len); 2751 ret = wps_parse_msg(&msg, &attr); 2752 if (ret < 0) { 2753 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2754 "Wi-Fi Handover Request Message"); 2755 goto out; 2756 } 2757 2758 if (attr.oob_dev_password == NULL || 2759 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2760 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2761 "included in Wi-Fi Handover Request Message"); 2762 ret = -1; 2763 goto out; 2764 } 2765 2766 if (attr.uuid_e == NULL) { 2767 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2768 "Handover Request Message"); 2769 ret = -1; 2770 goto out; 2771 } 2772 2773 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2774 2775 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2776 attr.oob_dev_password, attr.oob_dev_password_len); 2777 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2778 WPS_OOB_PUBKEY_HASH_LEN); 2779 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2780 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2781 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2782 ret = -1; 2783 goto out; 2784 } 2785 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2786 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2787 2788 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar, 2789 attr.oob_dev_password, 2790 DEV_PW_NFC_CONNECTION_HANDOVER, 2791 NULL, 0, 1); 2792 2793 out: 2794 wpabuf_free(wps); 2795 return ret; 2796 } 2797 2798 #endif /* CONFIG_WPS_NFC */ 2799 2800 2801 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) 2802 { 2803 size_t i; 2804 struct os_reltime now; 2805 2806 if (wpa_debug_level > MSG_DEBUG) 2807 return; 2808 2809 if (wpa_s->wps_ap == NULL) 2810 return; 2811 2812 os_get_reltime(&now); 2813 2814 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2815 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2816 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid); 2817 2818 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " 2819 "tries=%d last_attempt=%d sec ago blacklist=%d", 2820 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, 2821 ap->last_attempt.sec > 0 ? 2822 (int) now.sec - (int) ap->last_attempt.sec : -1, 2823 e ? e->count : 0); 2824 } 2825 } 2826 2827 2828 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, 2829 const u8 *bssid) 2830 { 2831 size_t i; 2832 2833 if (wpa_s->wps_ap == NULL) 2834 return NULL; 2835 2836 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2837 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2838 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) 2839 return ap; 2840 } 2841 2842 return NULL; 2843 } 2844 2845 2846 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, 2847 struct wpa_scan_res *res) 2848 { 2849 struct wpabuf *wps; 2850 enum wps_ap_info_type type; 2851 struct wps_ap_info *ap; 2852 int r, pbc_active; 2853 const u8 *uuid; 2854 2855 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) 2856 return; 2857 2858 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 2859 if (wps == NULL) 2860 return; 2861 2862 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); 2863 if (r == 2) 2864 type = WPS_AP_SEL_REG_OUR; 2865 else if (r == 1) 2866 type = WPS_AP_SEL_REG; 2867 else 2868 type = WPS_AP_NOT_SEL_REG; 2869 2870 uuid = wps_get_uuid_e(wps); 2871 pbc_active = wps_is_selected_pbc_registrar(wps); 2872 2873 ap = wpas_wps_get_ap_info(wpa_s, res->bssid); 2874 if (ap) { 2875 if (ap->type != type) { 2876 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR 2877 " changed type %d -> %d", 2878 MAC2STR(res->bssid), ap->type, type); 2879 ap->type = type; 2880 if (type != WPS_AP_NOT_SEL_REG) 2881 wpa_blacklist_del(wpa_s, ap->bssid); 2882 } 2883 ap->pbc_active = pbc_active; 2884 if (uuid) 2885 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2886 goto out; 2887 } 2888 2889 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, 2890 sizeof(struct wps_ap_info)); 2891 if (ap == NULL) 2892 goto out; 2893 2894 wpa_s->wps_ap = ap; 2895 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; 2896 wpa_s->num_wps_ap++; 2897 2898 os_memset(ap, 0, sizeof(*ap)); 2899 os_memcpy(ap->bssid, res->bssid, ETH_ALEN); 2900 ap->type = type; 2901 ap->pbc_active = pbc_active; 2902 if (uuid) 2903 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2904 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", 2905 MAC2STR(ap->bssid), ap->type); 2906 2907 out: 2908 wpabuf_free(wps); 2909 } 2910 2911 2912 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, 2913 struct wpa_scan_results *scan_res) 2914 { 2915 size_t i; 2916 2917 for (i = 0; i < scan_res->num; i++) 2918 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); 2919 2920 wpas_wps_dump_ap_info(wpa_s); 2921 } 2922 2923 2924 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) 2925 { 2926 struct wps_ap_info *ap; 2927 2928 wpa_s->after_wps = 0; 2929 2930 if (!wpa_s->wps_ap_iter) 2931 return; 2932 ap = wpas_wps_get_ap_info(wpa_s, bssid); 2933 if (ap == NULL) 2934 return; 2935 ap->tries++; 2936 os_get_reltime(&ap->last_attempt); 2937 } 2938
