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_malloc(bss->ssid_len); 1031 if (ssid->ssid == NULL) 1032 break; 1033 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len); 1034 ssid->ssid_len = bss->ssid_len; 1035 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from " 1036 "scan results", 1037 ssid->ssid, ssid->ssid_len); 1038 count++; 1039 } 1040 1041 if (count > 1) { 1042 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found " 1043 "for the AP; use wildcard"); 1044 os_free(ssid->ssid); 1045 ssid->ssid = NULL; 1046 ssid->ssid_len = 0; 1047 } 1048 #endif /* CONFIG_P2P */ 1049 } 1050 1051 return ssid; 1052 } 1053 1054 1055 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s, 1056 struct wpa_ssid *selected) 1057 { 1058 struct wpa_ssid *ssid; 1059 1060 if (wpa_s->current_ssid) { 1061 wpa_s->own_disconnect_req = 1; 1062 wpa_supplicant_deauthenticate( 1063 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1064 } 1065 1066 /* Mark all other networks disabled and trigger reassociation */ 1067 ssid = wpa_s->conf->ssid; 1068 while (ssid) { 1069 int was_disabled = ssid->disabled; 1070 ssid->disabled_for_connect = 0; 1071 /* 1072 * In case the network object corresponds to a persistent group 1073 * then do not send out network disabled signal. In addition, 1074 * do not change disabled status of persistent network objects 1075 * from 2 to 1 should we connect to another network. 1076 */ 1077 if (was_disabled != 2) { 1078 ssid->disabled = ssid != selected; 1079 if (was_disabled != ssid->disabled) { 1080 if (ssid->disabled) 1081 ssid->disabled_for_connect = 1; 1082 wpas_notify_network_enabled_changed(wpa_s, 1083 ssid); 1084 } 1085 } 1086 ssid = ssid->next; 1087 } 1088 } 1089 1090 1091 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s, 1092 struct wpa_ssid *selected, const u8 *bssid, 1093 int freq) 1094 { 1095 struct wpa_bss *bss; 1096 1097 wpa_s->wps_run++; 1098 if (wpa_s->wps_run == 0) 1099 wpa_s->wps_run++; 1100 wpa_s->after_wps = 0; 1101 wpa_s->known_wps_freq = 0; 1102 if (freq) { 1103 wpa_s->after_wps = 5; 1104 wpa_s->wps_freq = freq; 1105 } else if (bssid) { 1106 bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 1107 if (bss && bss->freq > 0) { 1108 wpa_s->known_wps_freq = 1; 1109 wpa_s->wps_freq = bss->freq; 1110 } 1111 } 1112 1113 wpas_wps_temp_disable(wpa_s, selected); 1114 1115 wpa_s->disconnected = 0; 1116 wpa_s->reassociate = 1; 1117 wpa_s->scan_runs = 0; 1118 wpa_s->normal_scans = 0; 1119 wpa_s->wps_success = 0; 1120 wpa_s->blacklist_cleared = 0; 1121 1122 wpa_supplicant_cancel_sched_scan(wpa_s); 1123 wpa_supplicant_req_scan(wpa_s, 0, 0); 1124 } 1125 1126 1127 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid, 1128 int p2p_group) 1129 { 1130 struct wpa_ssid *ssid; 1131 1132 #ifdef CONFIG_AP 1133 if (wpa_s->ap_iface) { 1134 wpa_printf(MSG_DEBUG, 1135 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1136 return -1; 1137 } 1138 #endif /* CONFIG_AP */ 1139 wpas_clear_wps(wpa_s); 1140 ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid); 1141 if (ssid == NULL) 1142 return -1; 1143 ssid->temporary = 1; 1144 ssid->p2p_group = p2p_group; 1145 /* 1146 * When starting a regular WPS process (not P2P group formation) 1147 * the registrar/final station can be either AP or PCP 1148 * so use a "don't care" value for the pbss flag. 1149 */ 1150 if (!p2p_group) 1151 ssid->pbss = 2; 1152 #ifdef CONFIG_P2P 1153 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1154 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1155 if (ssid->ssid) { 1156 ssid->ssid_len = wpa_s->go_params->ssid_len; 1157 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1158 ssid->ssid_len); 1159 if (wpa_s->go_params->freq > 56160) { 1160 /* P2P in 60 GHz uses PBSS */ 1161 ssid->pbss = 1; 1162 } 1163 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1164 "SSID", ssid->ssid, ssid->ssid_len); 1165 } 1166 } 1167 #endif /* CONFIG_P2P */ 1168 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0) 1169 return -1; 1170 if (wpa_s->wps_fragment_size) 1171 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 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 { 1485 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); 1486 src = "based on MAC address"; 1487 } 1488 } else { 1489 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 1490 src = "based on configuration"; 1491 } 1492 1493 uuid_bin2str(wps->uuid, buf, sizeof(buf)); 1494 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf); 1495 } 1496 1497 1498 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, 1499 struct wps_context *wps) 1500 { 1501 wpabuf_free(wps->dev.vendor_ext_m1); 1502 wps->dev.vendor_ext_m1 = NULL; 1503 1504 if (wpa_s->conf->wps_vendor_ext_m1) { 1505 wps->dev.vendor_ext_m1 = 1506 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); 1507 if (!wps->dev.vendor_ext_m1) { 1508 wpa_printf(MSG_ERROR, "WPS: Cannot " 1509 "allocate memory for vendor_ext_m1"); 1510 } 1511 } 1512 } 1513 1514 1515 int wpas_wps_init(struct wpa_supplicant *wpa_s) 1516 { 1517 struct wps_context *wps; 1518 struct wps_registrar_config rcfg; 1519 struct hostapd_hw_modes *modes; 1520 u16 m; 1521 1522 wps = os_zalloc(sizeof(*wps)); 1523 if (wps == NULL) 1524 return -1; 1525 1526 wps->cred_cb = wpa_supplicant_wps_cred; 1527 wps->event_cb = wpa_supplicant_wps_event; 1528 wps->rf_band_cb = wpa_supplicant_wps_rf_band; 1529 wps->cb_ctx = wpa_s; 1530 1531 wps->dev.device_name = wpa_s->conf->device_name; 1532 wps->dev.manufacturer = wpa_s->conf->manufacturer; 1533 wps->dev.model_name = wpa_s->conf->model_name; 1534 wps->dev.model_number = wpa_s->conf->model_number; 1535 wps->dev.serial_number = wpa_s->conf->serial_number; 1536 wps->config_methods = 1537 wps_config_methods_str2bin(wpa_s->conf->config_methods); 1538 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1539 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1540 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " 1541 "methods are not allowed at the same time"); 1542 os_free(wps); 1543 return -1; 1544 } 1545 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1546 wps->dev.config_methods = wps->config_methods; 1547 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1548 WPS_DEV_TYPE_LEN); 1549 1550 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1551 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1552 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); 1553 1554 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 1555 1556 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 1557 modes = wpa_s->hw.modes; 1558 if (modes) { 1559 for (m = 0; m < wpa_s->hw.num_modes; m++) { 1560 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || 1561 modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1562 wps->dev.rf_bands |= WPS_RF_24GHZ; 1563 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) 1564 wps->dev.rf_bands |= WPS_RF_50GHZ; 1565 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD) 1566 wps->dev.rf_bands |= WPS_RF_60GHZ; 1567 } 1568 } 1569 if (wps->dev.rf_bands == 0) { 1570 /* 1571 * Default to claiming support for both bands if the driver 1572 * does not provide support for fetching supported bands. 1573 */ 1574 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; 1575 } 1576 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 1577 wpas_wps_set_uuid(wpa_s, wps); 1578 1579 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1580 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1581 1582 os_memset(&rcfg, 0, sizeof(rcfg)); 1583 rcfg.new_psk_cb = wpas_wps_new_psk_cb; 1584 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; 1585 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; 1586 rcfg.cb_ctx = wpa_s; 1587 1588 wps->registrar = wps_registrar_init(wps, &rcfg); 1589 if (wps->registrar == NULL) { 1590 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); 1591 os_free(wps); 1592 return -1; 1593 } 1594 1595 wpa_s->wps = wps; 1596 1597 return 0; 1598 } 1599 1600 1601 #ifdef CONFIG_WPS_ER 1602 static void wpas_wps_nfc_clear(struct wps_context *wps) 1603 { 1604 wps->ap_nfc_dev_pw_id = 0; 1605 wpabuf_free(wps->ap_nfc_dh_pubkey); 1606 wps->ap_nfc_dh_pubkey = NULL; 1607 wpabuf_free(wps->ap_nfc_dh_privkey); 1608 wps->ap_nfc_dh_privkey = NULL; 1609 wpabuf_free(wps->ap_nfc_dev_pw); 1610 wps->ap_nfc_dev_pw = NULL; 1611 } 1612 #endif /* CONFIG_WPS_ER */ 1613 1614 1615 void wpas_wps_deinit(struct wpa_supplicant *wpa_s) 1616 { 1617 wpas_wps_assoc_with_cred_cancel(wpa_s); 1618 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 1619 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 1620 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 1621 wpas_wps_clear_ap_info(wpa_s); 1622 1623 #ifdef CONFIG_P2P 1624 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL); 1625 #endif /* CONFIG_P2P */ 1626 1627 if (wpa_s->wps == NULL) 1628 return; 1629 1630 #ifdef CONFIG_WPS_ER 1631 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1632 wpa_s->wps_er = NULL; 1633 wpas_wps_nfc_clear(wpa_s->wps); 1634 #endif /* CONFIG_WPS_ER */ 1635 1636 wps_registrar_deinit(wpa_s->wps->registrar); 1637 wpabuf_free(wpa_s->wps->dh_pubkey); 1638 wpabuf_free(wpa_s->wps->dh_privkey); 1639 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); 1640 os_free(wpa_s->wps->network_key); 1641 os_free(wpa_s->wps); 1642 wpa_s->wps = NULL; 1643 } 1644 1645 1646 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, 1647 struct wpa_ssid *ssid, struct wpa_bss *bss) 1648 { 1649 struct wpabuf *wps_ie; 1650 1651 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) 1652 return -1; 1653 1654 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1655 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1656 if (!wps_ie) { 1657 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1658 return 0; 1659 } 1660 1661 if (!wps_is_selected_pbc_registrar(wps_ie)) { 1662 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1663 "without active PBC Registrar"); 1664 wpabuf_free(wps_ie); 1665 return 0; 1666 } 1667 1668 /* TODO: overlap detection */ 1669 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1670 "(Active PBC)"); 1671 wpabuf_free(wps_ie); 1672 return 1; 1673 } 1674 1675 if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1676 if (!wps_ie) { 1677 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1678 return 0; 1679 } 1680 1681 /* 1682 * Start with WPS APs that advertise our address as an 1683 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and 1684 * allow any WPS AP after couple of scans since some APs do not 1685 * set Selected Registrar attribute properly when using 1686 * external Registrar. 1687 */ 1688 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { 1689 struct os_reltime age; 1690 1691 os_reltime_age(&wpa_s->wps_pin_start_time, &age); 1692 1693 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG || 1694 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) { 1695 wpa_printf(MSG_DEBUG, 1696 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)", 1697 wpa_s->scan_runs, (int) age.sec); 1698 wpabuf_free(wps_ie); 1699 return 0; 1700 } 1701 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1702 } else { 1703 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1704 "(Authorized MAC or Active PIN)"); 1705 } 1706 wpabuf_free(wps_ie); 1707 return 1; 1708 } 1709 1710 if (wps_ie) { 1711 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1712 wpabuf_free(wps_ie); 1713 return 1; 1714 } 1715 1716 return -1; 1717 } 1718 1719 1720 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, 1721 struct wpa_ssid *ssid, 1722 struct wpa_bss *bss) 1723 { 1724 struct wpabuf *wps_ie = NULL; 1725 int ret = 0; 1726 1727 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1728 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1729 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { 1730 /* allow wildcard SSID for WPS PBC */ 1731 ret = 1; 1732 } 1733 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1734 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1735 if (wps_ie && 1736 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || 1737 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { 1738 /* allow wildcard SSID for WPS PIN */ 1739 ret = 1; 1740 } 1741 } 1742 1743 if (!ret && ssid->bssid_set && 1744 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { 1745 /* allow wildcard SSID due to hardcoded BSSID match */ 1746 ret = 1; 1747 } 1748 1749 #ifdef CONFIG_WPS_STRICT 1750 if (wps_ie) { 1751 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > 1752 0, bss->bssid) < 0) 1753 ret = 0; 1754 if (bss->beacon_ie_len) { 1755 struct wpabuf *bcn_wps; 1756 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( 1757 bss, WPS_IE_VENDOR_TYPE); 1758 if (bcn_wps == NULL) { 1759 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " 1760 "missing from AP Beacon"); 1761 ret = 0; 1762 } else { 1763 if (wps_validate_beacon(wps_ie) < 0) 1764 ret = 0; 1765 wpabuf_free(bcn_wps); 1766 } 1767 } 1768 } 1769 #endif /* CONFIG_WPS_STRICT */ 1770 1771 wpabuf_free(wps_ie); 1772 1773 return ret; 1774 } 1775 1776 1777 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, 1778 struct wpa_bss *selected, struct wpa_ssid *ssid) 1779 { 1780 const u8 *sel_uuid; 1781 struct wpabuf *wps_ie; 1782 int ret = 0; 1783 size_t i; 1784 1785 if (!eap_is_wps_pbc_enrollee(&ssid->eap)) 1786 return 0; 1787 1788 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " 1789 "present in scan results; selected BSSID " MACSTR, 1790 MAC2STR(selected->bssid)); 1791 1792 /* Make sure that only one AP is in active PBC mode */ 1793 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); 1794 if (wps_ie) { 1795 sel_uuid = wps_get_uuid_e(wps_ie); 1796 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", 1797 sel_uuid, UUID_LEN); 1798 } else { 1799 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " 1800 "WPS IE?!"); 1801 sel_uuid = NULL; 1802 } 1803 1804 for (i = 0; i < wpa_s->num_wps_ap; i++) { 1805 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 1806 1807 if (!ap->pbc_active || 1808 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0) 1809 continue; 1810 1811 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " 1812 MACSTR, MAC2STR(ap->bssid)); 1813 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", 1814 ap->uuid, UUID_LEN); 1815 if (sel_uuid == NULL || 1816 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) { 1817 ret = 1; /* PBC overlap */ 1818 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " 1819 MACSTR " and " MACSTR, 1820 MAC2STR(selected->bssid), 1821 MAC2STR(ap->bssid)); 1822 break; 1823 } 1824 1825 /* TODO: verify that this is reasonable dual-band situation */ 1826 } 1827 1828 wpabuf_free(wps_ie); 1829 1830 return ret; 1831 } 1832 1833 1834 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) 1835 { 1836 struct wpa_bss *bss; 1837 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; 1838 1839 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) 1840 return; 1841 1842 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1843 struct wpabuf *ie; 1844 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1845 if (!ie) 1846 continue; 1847 if (wps_is_selected_pbc_registrar(ie)) 1848 pbc++; 1849 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) 1850 auth++; 1851 else if (wps_is_selected_pin_registrar(ie)) 1852 pin++; 1853 else 1854 wps++; 1855 wpabuf_free(ie); 1856 } 1857 1858 if (pbc) 1859 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); 1860 else if (auth) 1861 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); 1862 else if (pin) 1863 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); 1864 else if (wps) 1865 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); 1866 } 1867 1868 1869 int wpas_wps_searching(struct wpa_supplicant *wpa_s) 1870 { 1871 struct wpa_ssid *ssid; 1872 1873 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1874 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) 1875 return 1; 1876 } 1877 1878 return 0; 1879 } 1880 1881 1882 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 1883 char *end) 1884 { 1885 struct wpabuf *wps_ie; 1886 int ret; 1887 1888 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); 1889 if (wps_ie == NULL) 1890 return 0; 1891 1892 ret = wps_attr_text(wps_ie, buf, end); 1893 wpabuf_free(wps_ie); 1894 return ret; 1895 } 1896 1897 1898 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) 1899 { 1900 #ifdef CONFIG_WPS_ER 1901 if (wpa_s->wps_er) { 1902 wps_er_refresh(wpa_s->wps_er); 1903 return 0; 1904 } 1905 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); 1906 if (wpa_s->wps_er == NULL) 1907 return -1; 1908 return 0; 1909 #else /* CONFIG_WPS_ER */ 1910 return 0; 1911 #endif /* CONFIG_WPS_ER */ 1912 } 1913 1914 1915 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s) 1916 { 1917 #ifdef CONFIG_WPS_ER 1918 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1919 wpa_s->wps_er = NULL; 1920 #endif /* CONFIG_WPS_ER */ 1921 } 1922 1923 1924 #ifdef CONFIG_WPS_ER 1925 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, 1926 const char *uuid, const char *pin) 1927 { 1928 u8 u[UUID_LEN]; 1929 const u8 *use_uuid = NULL; 1930 u8 addr_buf[ETH_ALEN]; 1931 1932 if (os_strcmp(uuid, "any") == 0) { 1933 } else if (uuid_str2bin(uuid, u) == 0) { 1934 use_uuid = u; 1935 } else if (hwaddr_aton(uuid, addr_buf) == 0) { 1936 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); 1937 if (use_uuid == NULL) 1938 return -1; 1939 } else 1940 return -1; 1941 return wps_registrar_add_pin(wpa_s->wps->registrar, addr, 1942 use_uuid, 1943 (const u8 *) pin, os_strlen(pin), 300); 1944 } 1945 1946 1947 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) 1948 { 1949 u8 u[UUID_LEN], *use_uuid = NULL; 1950 u8 addr[ETH_ALEN], *use_addr = NULL; 1951 1952 if (uuid_str2bin(uuid, u) == 0) 1953 use_uuid = u; 1954 else if (hwaddr_aton(uuid, addr) == 0) 1955 use_addr = addr; 1956 else 1957 return -1; 1958 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); 1959 } 1960 1961 1962 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, 1963 const char *pin) 1964 { 1965 u8 u[UUID_LEN], *use_uuid = NULL; 1966 u8 addr[ETH_ALEN], *use_addr = NULL; 1967 1968 if (uuid_str2bin(uuid, u) == 0) 1969 use_uuid = u; 1970 else if (hwaddr_aton(uuid, addr) == 0) 1971 use_addr = addr; 1972 else 1973 return -1; 1974 1975 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, 1976 os_strlen(pin)); 1977 } 1978 1979 1980 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, 1981 struct wps_credential *cred) 1982 { 1983 os_memset(cred, 0, sizeof(*cred)); 1984 if (ssid->ssid_len > SSID_MAX_LEN) 1985 return -1; 1986 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); 1987 cred->ssid_len = ssid->ssid_len; 1988 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 1989 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? 1990 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; 1991 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 1992 cred->encr_type = WPS_ENCR_AES; 1993 else 1994 cred->encr_type = WPS_ENCR_TKIP; 1995 if (ssid->passphrase) { 1996 cred->key_len = os_strlen(ssid->passphrase); 1997 if (cred->key_len >= 64) 1998 return -1; 1999 os_memcpy(cred->key, ssid->passphrase, cred->key_len); 2000 } else if (ssid->psk_set) { 2001 cred->key_len = 32; 2002 os_memcpy(cred->key, ssid->psk, 32); 2003 } else 2004 return -1; 2005 } else { 2006 cred->auth_type = WPS_AUTH_OPEN; 2007 cred->encr_type = WPS_ENCR_NONE; 2008 } 2009 2010 return 0; 2011 } 2012 2013 2014 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, 2015 int id) 2016 { 2017 u8 u[UUID_LEN], *use_uuid = NULL; 2018 u8 addr[ETH_ALEN], *use_addr = NULL; 2019 struct wpa_ssid *ssid; 2020 struct wps_credential cred; 2021 int ret; 2022 2023 if (uuid_str2bin(uuid, u) == 0) 2024 use_uuid = u; 2025 else if (hwaddr_aton(uuid, addr) == 0) 2026 use_addr = addr; 2027 else 2028 return -1; 2029 ssid = wpa_config_get_network(wpa_s->conf, id); 2030 if (ssid == NULL || ssid->ssid == NULL) 2031 return -1; 2032 2033 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2034 return -1; 2035 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); 2036 os_memset(&cred, 0, sizeof(cred)); 2037 return ret; 2038 } 2039 2040 2041 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, 2042 const char *pin, struct wps_new_ap_settings *settings) 2043 { 2044 u8 u[UUID_LEN], *use_uuid = NULL; 2045 u8 addr[ETH_ALEN], *use_addr = NULL; 2046 struct wps_credential cred; 2047 size_t len; 2048 2049 if (uuid_str2bin(uuid, u) == 0) 2050 use_uuid = u; 2051 else if (hwaddr_aton(uuid, addr) == 0) 2052 use_addr = addr; 2053 else 2054 return -1; 2055 if (settings->ssid_hex == NULL || settings->auth == NULL || 2056 settings->encr == NULL || settings->key_hex == NULL) 2057 return -1; 2058 2059 os_memset(&cred, 0, sizeof(cred)); 2060 len = os_strlen(settings->ssid_hex); 2061 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 2062 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) 2063 return -1; 2064 cred.ssid_len = len / 2; 2065 2066 len = os_strlen(settings->key_hex); 2067 if ((len & 1) || len > 2 * sizeof(cred.key) || 2068 hexstr2bin(settings->key_hex, cred.key, len / 2)) 2069 return -1; 2070 cred.key_len = len / 2; 2071 2072 if (os_strcmp(settings->auth, "OPEN") == 0) 2073 cred.auth_type = WPS_AUTH_OPEN; 2074 else if (os_strcmp(settings->auth, "WPAPSK") == 0) 2075 cred.auth_type = WPS_AUTH_WPAPSK; 2076 else if (os_strcmp(settings->auth, "WPA2PSK") == 0) 2077 cred.auth_type = WPS_AUTH_WPA2PSK; 2078 else 2079 return -1; 2080 2081 if (os_strcmp(settings->encr, "NONE") == 0) 2082 cred.encr_type = WPS_ENCR_NONE; 2083 #ifdef CONFIG_TESTING_OPTIONS 2084 else if (os_strcmp(settings->encr, "WEP") == 0) 2085 cred.encr_type = WPS_ENCR_WEP; 2086 #endif /* CONFIG_TESTING_OPTIONS */ 2087 else if (os_strcmp(settings->encr, "TKIP") == 0) 2088 cred.encr_type = WPS_ENCR_TKIP; 2089 else if (os_strcmp(settings->encr, "CCMP") == 0) 2090 cred.encr_type = WPS_ENCR_AES; 2091 else 2092 return -1; 2093 2094 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, 2095 (const u8 *) pin, os_strlen(pin), &cred); 2096 } 2097 2098 2099 #ifdef CONFIG_WPS_NFC 2100 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, 2101 int ndef, const char *uuid) 2102 { 2103 struct wpabuf *ret; 2104 u8 u[UUID_LEN], *use_uuid = NULL; 2105 u8 addr[ETH_ALEN], *use_addr = NULL; 2106 2107 if (!wpa_s->wps_er) 2108 return NULL; 2109 2110 if (uuid_str2bin(uuid, u) == 0) 2111 use_uuid = u; 2112 else if (hwaddr_aton(uuid, addr) == 0) 2113 use_addr = addr; 2114 else 2115 return NULL; 2116 2117 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 2118 if (ndef && ret) { 2119 struct wpabuf *tmp; 2120 tmp = ndef_build_wifi(ret); 2121 wpabuf_free(ret); 2122 if (tmp == NULL) 2123 return NULL; 2124 ret = tmp; 2125 } 2126 2127 return ret; 2128 } 2129 #endif /* CONFIG_WPS_NFC */ 2130 2131 2132 static int callbacks_pending = 0; 2133 2134 static void wpas_wps_terminate_cb(void *ctx) 2135 { 2136 wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); 2137 if (--callbacks_pending <= 0) 2138 eloop_terminate(); 2139 } 2140 #endif /* CONFIG_WPS_ER */ 2141 2142 2143 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) 2144 { 2145 #ifdef CONFIG_WPS_ER 2146 if (wpa_s->wps_er) { 2147 callbacks_pending++; 2148 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); 2149 wpa_s->wps_er = NULL; 2150 return 1; 2151 } 2152 #endif /* CONFIG_WPS_ER */ 2153 return 0; 2154 } 2155 2156 2157 void wpas_wps_update_config(struct wpa_supplicant *wpa_s) 2158 { 2159 struct wps_context *wps = wpa_s->wps; 2160 2161 if (wps == NULL) 2162 return; 2163 2164 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { 2165 wps->config_methods = wps_config_methods_str2bin( 2166 wpa_s->conf->config_methods); 2167 if ((wps->config_methods & 2168 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 2169 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 2170 wpa_printf(MSG_ERROR, "WPS: Both Label and Display " 2171 "config methods are not allowed at the " 2172 "same time"); 2173 wps->config_methods &= ~WPS_CONFIG_LABEL; 2174 } 2175 } 2176 wps->config_methods = wps_fix_config_methods(wps->config_methods); 2177 wps->dev.config_methods = wps->config_methods; 2178 2179 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) 2180 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 2181 WPS_DEV_TYPE_LEN); 2182 2183 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { 2184 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 2185 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 2186 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); 2187 } 2188 2189 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) 2190 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 2191 2192 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) 2193 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 2194 2195 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) 2196 wpas_wps_set_uuid(wpa_s, wps); 2197 2198 if (wpa_s->conf->changed_parameters & 2199 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { 2200 /* Update pointers to make sure they refer current values */ 2201 wps->dev.device_name = wpa_s->conf->device_name; 2202 wps->dev.manufacturer = wpa_s->conf->manufacturer; 2203 wps->dev.model_name = wpa_s->conf->model_name; 2204 wps->dev.model_number = wpa_s->conf->model_number; 2205 wps->dev.serial_number = wpa_s->conf->serial_number; 2206 } 2207 } 2208 2209 2210 #ifdef CONFIG_WPS_NFC 2211 2212 #ifdef CONFIG_WPS_ER 2213 struct wpabuf * 2214 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, 2215 struct wpa_ssid *ssid) 2216 { 2217 struct wpabuf *ret; 2218 struct wps_credential cred; 2219 2220 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2221 return NULL; 2222 2223 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); 2224 2225 if (ndef && ret) { 2226 struct wpabuf *tmp; 2227 tmp = ndef_build_wifi(ret); 2228 wpabuf_free(ret); 2229 if (tmp == NULL) 2230 return NULL; 2231 ret = tmp; 2232 } 2233 2234 return ret; 2235 } 2236 #endif /* CONFIG_WPS_ER */ 2237 2238 2239 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 2240 int ndef, const char *id_str) 2241 { 2242 #ifdef CONFIG_WPS_ER 2243 if (id_str) { 2244 int id; 2245 char *end = NULL; 2246 struct wpa_ssid *ssid; 2247 2248 id = strtol(id_str, &end, 10); 2249 if (end && *end) 2250 return NULL; 2251 2252 ssid = wpa_config_get_network(wpa_s->conf, id); 2253 if (ssid == NULL) 2254 return NULL; 2255 return wpas_wps_network_config_token(wpa_s, ndef, ssid); 2256 } 2257 #endif /* CONFIG_WPS_ER */ 2258 #ifdef CONFIG_AP 2259 if (wpa_s->ap_iface) 2260 return wpas_ap_wps_nfc_config_token(wpa_s, ndef); 2261 #endif /* CONFIG_AP */ 2262 return NULL; 2263 } 2264 2265 2266 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) 2267 { 2268 if (wpa_s->conf->wps_nfc_pw_from_config) { 2269 return wps_nfc_token_build(ndef, 2270 wpa_s->conf->wps_nfc_dev_pw_id, 2271 wpa_s->conf->wps_nfc_dh_pubkey, 2272 wpa_s->conf->wps_nfc_dev_pw); 2273 } 2274 2275 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, 2276 &wpa_s->conf->wps_nfc_dh_pubkey, 2277 &wpa_s->conf->wps_nfc_dh_privkey, 2278 &wpa_s->conf->wps_nfc_dev_pw); 2279 } 2280 2281 2282 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr, 2283 const u8 *bssid, 2284 const struct wpabuf *dev_pw, u16 dev_pw_id, 2285 int p2p_group, const u8 *peer_pubkey_hash, 2286 const u8 *ssid, size_t ssid_len, int freq) 2287 { 2288 struct wps_context *wps = wpa_s->wps; 2289 char pw[32 * 2 + 1]; 2290 2291 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2292 dev_pw = wpa_s->conf->wps_nfc_dev_pw; 2293 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; 2294 } 2295 2296 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || 2297 wpa_s->conf->wps_nfc_dh_privkey == NULL) { 2298 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - " 2299 "cannot start NFC-triggered connection"); 2300 return -1; 2301 } 2302 2303 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2304 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - " 2305 "cannot start NFC-triggered connection", dev_pw_id); 2306 return -1; 2307 } 2308 2309 dh5_free(wps->dh_ctx); 2310 wpabuf_free(wps->dh_pubkey); 2311 wpabuf_free(wps->dh_privkey); 2312 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2313 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2314 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 2315 wps->dh_ctx = NULL; 2316 wpabuf_free(wps->dh_pubkey); 2317 wps->dh_pubkey = NULL; 2318 wpabuf_free(wps->dh_privkey); 2319 wps->dh_privkey = NULL; 2320 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key"); 2321 return -1; 2322 } 2323 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 2324 if (wps->dh_ctx == NULL) { 2325 wpabuf_free(wps->dh_pubkey); 2326 wps->dh_pubkey = NULL; 2327 wpabuf_free(wps->dh_privkey); 2328 wps->dh_privkey = NULL; 2329 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context"); 2330 return -1; 2331 } 2332 2333 if (dev_pw) { 2334 wpa_snprintf_hex_uppercase(pw, sizeof(pw), 2335 wpabuf_head(dev_pw), 2336 wpabuf_len(dev_pw)); 2337 } 2338 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid, 2339 dev_pw ? pw : NULL, 2340 p2p_group, dev_pw_id, peer_pubkey_hash, 2341 ssid, ssid_len, freq); 2342 } 2343 2344 2345 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, 2346 struct wps_parse_attr *attr) 2347 { 2348 /* 2349 * Disable existing networks temporarily to allow the newly learned 2350 * credential to be preferred. Enable the temporarily disabled networks 2351 * after 10 seconds. 2352 */ 2353 wpas_wps_temp_disable(wpa_s, NULL); 2354 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 2355 NULL); 2356 2357 if (wps_oob_use_cred(wpa_s->wps, attr) < 0) 2358 return -1; 2359 2360 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2361 return 0; 2362 2363 if (attr->ap_channel) { 2364 u16 chan = WPA_GET_BE16(attr->ap_channel); 2365 int freq = 0; 2366 2367 if (chan >= 1 && chan <= 13) 2368 freq = 2407 + 5 * chan; 2369 else if (chan == 14) 2370 freq = 2484; 2371 else if (chan >= 30) 2372 freq = 5000 + 5 * chan; 2373 2374 if (freq) { 2375 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz", 2376 chan, freq); 2377 wpa_s->after_wps = 5; 2378 wpa_s->wps_freq = freq; 2379 } 2380 } 2381 2382 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " 2383 "based on the received credential added"); 2384 wpa_s->normal_scans = 0; 2385 wpa_supplicant_reinit_autoscan(wpa_s); 2386 wpa_s->disconnected = 0; 2387 wpa_s->reassociate = 1; 2388 2389 wpa_supplicant_cancel_sched_scan(wpa_s); 2390 wpa_supplicant_req_scan(wpa_s, 0, 0); 2391 2392 return 0; 2393 } 2394 2395 2396 #ifdef CONFIG_WPS_ER 2397 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, 2398 struct wps_parse_attr *attr) 2399 { 2400 return wps_registrar_add_nfc_password_token( 2401 wpa_s->wps->registrar, attr->oob_dev_password, 2402 attr->oob_dev_password_len); 2403 } 2404 #endif /* CONFIG_WPS_ER */ 2405 2406 2407 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, 2408 const struct wpabuf *wps) 2409 { 2410 struct wps_parse_attr attr; 2411 2412 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2413 2414 if (wps_parse_msg(wps, &attr)) { 2415 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2416 return -1; 2417 } 2418 2419 if (attr.num_cred) 2420 return wpas_wps_use_cred(wpa_s, &attr); 2421 2422 #ifdef CONFIG_WPS_ER 2423 if (attr.oob_dev_password) 2424 return wpas_wps_add_nfc_password_token(wpa_s, &attr); 2425 #endif /* CONFIG_WPS_ER */ 2426 2427 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2428 return -1; 2429 } 2430 2431 2432 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, 2433 const struct wpabuf *data, int forced_freq) 2434 { 2435 const struct wpabuf *wps = data; 2436 struct wpabuf *tmp = NULL; 2437 int ret; 2438 2439 if (wpabuf_len(data) < 4) 2440 return -1; 2441 2442 if (*wpabuf_head_u8(data) != 0x10) { 2443 /* Assume this contains full NDEF record */ 2444 tmp = ndef_parse_wifi(data); 2445 if (tmp == NULL) { 2446 #ifdef CONFIG_P2P 2447 tmp = ndef_parse_p2p(data); 2448 if (tmp) { 2449 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp, 2450 forced_freq); 2451 wpabuf_free(tmp); 2452 return ret; 2453 } 2454 #endif /* CONFIG_P2P */ 2455 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2456 return -1; 2457 } 2458 wps = tmp; 2459 } 2460 2461 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2462 wpabuf_free(tmp); 2463 return ret; 2464 } 2465 2466 2467 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, 2468 int ndef) 2469 { 2470 struct wpabuf *ret; 2471 2472 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && 2473 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2474 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2475 return NULL; 2476 2477 ret = wps_build_nfc_handover_req(wpa_s->wps, 2478 wpa_s->conf->wps_nfc_dh_pubkey); 2479 2480 if (ndef && ret) { 2481 struct wpabuf *tmp; 2482 tmp = ndef_build_wifi(ret); 2483 wpabuf_free(ret); 2484 if (tmp == NULL) 2485 return NULL; 2486 ret = tmp; 2487 } 2488 2489 return ret; 2490 } 2491 2492 2493 #ifdef CONFIG_WPS_NFC 2494 2495 static struct wpabuf * 2496 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef, 2497 const char *uuid) 2498 { 2499 #ifdef CONFIG_WPS_ER 2500 struct wpabuf *ret; 2501 u8 u[UUID_LEN], *use_uuid = NULL; 2502 u8 addr[ETH_ALEN], *use_addr = NULL; 2503 struct wps_context *wps = wpa_s->wps; 2504 2505 if (wps == NULL) 2506 return NULL; 2507 2508 if (uuid == NULL) 2509 return NULL; 2510 if (uuid_str2bin(uuid, u) == 0) 2511 use_uuid = u; 2512 else if (hwaddr_aton(uuid, addr) == 0) 2513 use_addr = addr; 2514 else 2515 return NULL; 2516 2517 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) { 2518 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2519 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2520 return NULL; 2521 } 2522 2523 wpas_wps_nfc_clear(wps); 2524 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2525 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2526 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2527 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2528 wpas_wps_nfc_clear(wps); 2529 return NULL; 2530 } 2531 2532 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid, 2533 use_addr, wpa_s->conf->wps_nfc_dh_pubkey); 2534 if (ndef && ret) { 2535 struct wpabuf *tmp; 2536 tmp = ndef_build_wifi(ret); 2537 wpabuf_free(ret); 2538 if (tmp == NULL) 2539 return NULL; 2540 ret = tmp; 2541 } 2542 2543 return ret; 2544 #else /* CONFIG_WPS_ER */ 2545 return NULL; 2546 #endif /* CONFIG_WPS_ER */ 2547 } 2548 #endif /* CONFIG_WPS_NFC */ 2549 2550 2551 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2552 int ndef, int cr, const char *uuid) 2553 { 2554 struct wpabuf *ret; 2555 if (!cr) 2556 return NULL; 2557 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); 2558 if (ret) 2559 return ret; 2560 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); 2561 } 2562 2563 2564 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, 2565 const struct wpabuf *data) 2566 { 2567 struct wpabuf *wps; 2568 int ret = -1; 2569 u16 wsc_len; 2570 const u8 *pos; 2571 struct wpabuf msg; 2572 struct wps_parse_attr attr; 2573 u16 dev_pw_id; 2574 const u8 *bssid = NULL; 2575 int freq = 0; 2576 2577 wps = ndef_parse_wifi(data); 2578 if (wps == NULL) 2579 return -1; 2580 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2581 "payload from NFC connection handover"); 2582 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2583 if (wpabuf_len(wps) < 2) { 2584 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select " 2585 "Message"); 2586 goto out; 2587 } 2588 pos = wpabuf_head(wps); 2589 wsc_len = WPA_GET_BE16(pos); 2590 if (wsc_len > wpabuf_len(wps) - 2) { 2591 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2592 "in Wi-Fi Handover Select Message", wsc_len); 2593 goto out; 2594 } 2595 pos += 2; 2596 2597 wpa_hexdump(MSG_DEBUG, 2598 "WPS: WSC attributes in Wi-Fi Handover Select Message", 2599 pos, wsc_len); 2600 if (wsc_len < wpabuf_len(wps) - 2) { 2601 wpa_hexdump(MSG_DEBUG, 2602 "WPS: Ignore extra data after WSC attributes", 2603 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2604 } 2605 2606 wpabuf_set(&msg, pos, wsc_len); 2607 ret = wps_parse_msg(&msg, &attr); 2608 if (ret < 0) { 2609 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2610 "Wi-Fi Handover Select Message"); 2611 goto out; 2612 } 2613 2614 if (attr.oob_dev_password == NULL || 2615 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2616 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2617 "included in Wi-Fi Handover Select Message"); 2618 ret = -1; 2619 goto out; 2620 } 2621 2622 if (attr.ssid == NULL) { 2623 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover " 2624 "Select Message"); 2625 ret = -1; 2626 goto out; 2627 } 2628 2629 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len); 2630 2631 if (attr.mac_addr) { 2632 bssid = attr.mac_addr; 2633 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR, 2634 MAC2STR(bssid)); 2635 } 2636 2637 if (attr.rf_bands) 2638 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands); 2639 2640 if (attr.ap_channel) { 2641 u16 chan = WPA_GET_BE16(attr.ap_channel); 2642 2643 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan); 2644 2645 if (chan >= 1 && chan <= 13 && 2646 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ)) 2647 freq = 2407 + 5 * chan; 2648 else if (chan == 14 && 2649 (attr.rf_bands == NULL || 2650 *attr.rf_bands & WPS_RF_24GHZ)) 2651 freq = 2484; 2652 else if (chan >= 30 && 2653 (attr.rf_bands == NULL || 2654 *attr.rf_bands & WPS_RF_50GHZ)) 2655 freq = 5000 + 5 * chan; 2656 else if (chan >= 1 && chan <= 4 && 2657 (attr.rf_bands == NULL || 2658 *attr.rf_bands & WPS_RF_60GHZ)) 2659 freq = 56160 + 2160 * chan; 2660 2661 if (freq) { 2662 wpa_printf(MSG_DEBUG, 2663 "WPS: AP indicated channel %u -> %u MHz", 2664 chan, freq); 2665 } 2666 } 2667 2668 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2669 attr.oob_dev_password, attr.oob_dev_password_len); 2670 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2671 WPS_OOB_PUBKEY_HASH_LEN); 2672 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2673 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2674 "%u in Wi-Fi Handover Select Message", dev_pw_id); 2675 ret = -1; 2676 goto out; 2677 } 2678 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash", 2679 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2680 2681 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0, 2682 attr.oob_dev_password, 2683 attr.ssid, attr.ssid_len, freq); 2684 2685 out: 2686 wpabuf_free(wps); 2687 return ret; 2688 } 2689 2690 2691 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2692 const struct wpabuf *req, 2693 const struct wpabuf *sel) 2694 { 2695 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); 2696 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); 2697 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); 2698 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); 2699 } 2700 2701 2702 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2703 const struct wpabuf *req, 2704 const struct wpabuf *sel) 2705 { 2706 struct wpabuf *wps; 2707 int ret = -1; 2708 u16 wsc_len; 2709 const u8 *pos; 2710 struct wpabuf msg; 2711 struct wps_parse_attr attr; 2712 u16 dev_pw_id; 2713 2714 /* 2715 * Enrollee/station is always initiator of the NFC connection handover, 2716 * so use the request message here to find Enrollee public key hash. 2717 */ 2718 wps = ndef_parse_wifi(req); 2719 if (wps == NULL) 2720 return -1; 2721 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2722 "payload from NFC connection handover"); 2723 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2724 if (wpabuf_len(wps) < 2) { 2725 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2726 "Message"); 2727 goto out; 2728 } 2729 pos = wpabuf_head(wps); 2730 wsc_len = WPA_GET_BE16(pos); 2731 if (wsc_len > wpabuf_len(wps) - 2) { 2732 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2733 "in rt Wi-Fi Handover Request Message", wsc_len); 2734 goto out; 2735 } 2736 pos += 2; 2737 2738 wpa_hexdump(MSG_DEBUG, 2739 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2740 pos, wsc_len); 2741 if (wsc_len < wpabuf_len(wps) - 2) { 2742 wpa_hexdump(MSG_DEBUG, 2743 "WPS: Ignore extra data after WSC attributes", 2744 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2745 } 2746 2747 wpabuf_set(&msg, pos, wsc_len); 2748 ret = wps_parse_msg(&msg, &attr); 2749 if (ret < 0) { 2750 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2751 "Wi-Fi Handover Request Message"); 2752 goto out; 2753 } 2754 2755 if (attr.oob_dev_password == NULL || 2756 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2757 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2758 "included in Wi-Fi Handover Request Message"); 2759 ret = -1; 2760 goto out; 2761 } 2762 2763 if (attr.uuid_e == NULL) { 2764 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2765 "Handover Request Message"); 2766 ret = -1; 2767 goto out; 2768 } 2769 2770 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2771 2772 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2773 attr.oob_dev_password, attr.oob_dev_password_len); 2774 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2775 WPS_OOB_PUBKEY_HASH_LEN); 2776 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2777 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2778 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2779 ret = -1; 2780 goto out; 2781 } 2782 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2783 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2784 2785 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar, 2786 attr.oob_dev_password, 2787 DEV_PW_NFC_CONNECTION_HANDOVER, 2788 NULL, 0, 1); 2789 2790 out: 2791 wpabuf_free(wps); 2792 return ret; 2793 } 2794 2795 #endif /* CONFIG_WPS_NFC */ 2796 2797 2798 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) 2799 { 2800 size_t i; 2801 struct os_reltime now; 2802 2803 if (wpa_debug_level > MSG_DEBUG) 2804 return; 2805 2806 if (wpa_s->wps_ap == NULL) 2807 return; 2808 2809 os_get_reltime(&now); 2810 2811 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2812 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2813 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid); 2814 2815 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " 2816 "tries=%d last_attempt=%d sec ago blacklist=%d", 2817 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, 2818 ap->last_attempt.sec > 0 ? 2819 (int) now.sec - (int) ap->last_attempt.sec : -1, 2820 e ? e->count : 0); 2821 } 2822 } 2823 2824 2825 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, 2826 const u8 *bssid) 2827 { 2828 size_t i; 2829 2830 if (wpa_s->wps_ap == NULL) 2831 return NULL; 2832 2833 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2834 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2835 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) 2836 return ap; 2837 } 2838 2839 return NULL; 2840 } 2841 2842 2843 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, 2844 struct wpa_scan_res *res) 2845 { 2846 struct wpabuf *wps; 2847 enum wps_ap_info_type type; 2848 struct wps_ap_info *ap; 2849 int r, pbc_active; 2850 const u8 *uuid; 2851 2852 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) 2853 return; 2854 2855 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 2856 if (wps == NULL) 2857 return; 2858 2859 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); 2860 if (r == 2) 2861 type = WPS_AP_SEL_REG_OUR; 2862 else if (r == 1) 2863 type = WPS_AP_SEL_REG; 2864 else 2865 type = WPS_AP_NOT_SEL_REG; 2866 2867 uuid = wps_get_uuid_e(wps); 2868 pbc_active = wps_is_selected_pbc_registrar(wps); 2869 2870 ap = wpas_wps_get_ap_info(wpa_s, res->bssid); 2871 if (ap) { 2872 if (ap->type != type) { 2873 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR 2874 " changed type %d -> %d", 2875 MAC2STR(res->bssid), ap->type, type); 2876 ap->type = type; 2877 if (type != WPS_AP_NOT_SEL_REG) 2878 wpa_blacklist_del(wpa_s, ap->bssid); 2879 } 2880 ap->pbc_active = pbc_active; 2881 if (uuid) 2882 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2883 goto out; 2884 } 2885 2886 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, 2887 sizeof(struct wps_ap_info)); 2888 if (ap == NULL) 2889 goto out; 2890 2891 wpa_s->wps_ap = ap; 2892 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; 2893 wpa_s->num_wps_ap++; 2894 2895 os_memset(ap, 0, sizeof(*ap)); 2896 os_memcpy(ap->bssid, res->bssid, ETH_ALEN); 2897 ap->type = type; 2898 ap->pbc_active = pbc_active; 2899 if (uuid) 2900 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2901 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", 2902 MAC2STR(ap->bssid), ap->type); 2903 2904 out: 2905 wpabuf_free(wps); 2906 } 2907 2908 2909 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, 2910 struct wpa_scan_results *scan_res) 2911 { 2912 size_t i; 2913 2914 for (i = 0; i < scan_res->num; i++) 2915 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); 2916 2917 wpas_wps_dump_ap_info(wpa_s); 2918 } 2919 2920 2921 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) 2922 { 2923 struct wps_ap_info *ap; 2924 2925 wpa_s->after_wps = 0; 2926 2927 if (!wpa_s->wps_ap_iter) 2928 return; 2929 ap = wpas_wps_get_ap_info(wpa_s, bssid); 2930 if (ap == NULL) 2931 return; 2932 ap->tries++; 2933 os_get_reltime(&ap->last_attempt); 2934 } 2935
