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 #ifdef CONFIG_P2P 1146 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1147 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1148 if (ssid->ssid) { 1149 ssid->ssid_len = wpa_s->go_params->ssid_len; 1150 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1151 ssid->ssid_len); 1152 if (wpa_s->go_params->freq > 56160) { 1153 /* P2P in 60 GHz uses PBSS */ 1154 ssid->pbss = 1; 1155 } 1156 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1157 "SSID", ssid->ssid, ssid->ssid_len); 1158 } 1159 } 1160 #endif /* CONFIG_P2P */ 1161 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0) 1162 return -1; 1163 if (wpa_s->wps_fragment_size) 1164 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1165 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1166 wpa_s, NULL); 1167 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1168 return 0; 1169 } 1170 1171 1172 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s, 1173 const u8 *dev_addr, const u8 *bssid, 1174 const char *pin, int p2p_group, u16 dev_pw_id, 1175 const u8 *peer_pubkey_hash, 1176 const u8 *ssid_val, size_t ssid_len, int freq) 1177 { 1178 struct wpa_ssid *ssid; 1179 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN]; 1180 unsigned int rpin = 0; 1181 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10]; 1182 1183 #ifdef CONFIG_AP 1184 if (wpa_s->ap_iface) { 1185 wpa_printf(MSG_DEBUG, 1186 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1187 return -1; 1188 } 1189 #endif /* CONFIG_AP */ 1190 wpas_clear_wps(wpa_s); 1191 if (bssid && is_zero_ether_addr(bssid)) 1192 bssid = NULL; 1193 ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid); 1194 if (ssid == NULL) { 1195 wpa_printf(MSG_DEBUG, "WPS: Could not add network"); 1196 return -1; 1197 } 1198 ssid->temporary = 1; 1199 ssid->p2p_group = p2p_group; 1200 if (ssid_val) { 1201 ssid->ssid = os_malloc(ssid_len); 1202 if (ssid->ssid) { 1203 os_memcpy(ssid->ssid, ssid_val, ssid_len); 1204 ssid->ssid_len = ssid_len; 1205 } 1206 } 1207 if (peer_pubkey_hash) { 1208 os_memcpy(hash, " pkhash=", 8); 1209 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8, 1210 peer_pubkey_hash, 1211 WPS_OOB_PUBKEY_HASH_LEN); 1212 } else { 1213 hash[0] = '\0'; 1214 } 1215 #ifdef CONFIG_P2P 1216 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) { 1217 os_free(ssid->ssid); 1218 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1); 1219 if (ssid->ssid) { 1220 ssid->ssid_len = wpa_s->go_params->ssid_len; 1221 os_memcpy(ssid->ssid, wpa_s->go_params->ssid, 1222 ssid->ssid_len); 1223 if (wpa_s->go_params->freq > 56160) { 1224 /* P2P in 60 GHz uses PBSS */ 1225 ssid->pbss = 1; 1226 } 1227 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP " 1228 "SSID", ssid->ssid, ssid->ssid_len); 1229 } 1230 } 1231 #endif /* CONFIG_P2P */ 1232 if (pin) 1233 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"", 1234 pin, dev_pw_id, hash); 1235 else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) { 1236 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"", 1237 dev_pw_id, hash); 1238 } else { 1239 if (wps_generate_pin(&rpin) < 0) { 1240 wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN"); 1241 return -1; 1242 } 1243 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"", 1244 rpin, dev_pw_id, hash); 1245 } 1246 if (wpa_config_set(ssid, "phase1", val, 0) < 0) { 1247 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val); 1248 return -1; 1249 } 1250 if (wpa_s->wps_fragment_size) 1251 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1252 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1253 wpa_s, NULL); 1254 wpa_s->wps_ap_iter = 1; 1255 wpas_wps_reassoc(wpa_s, ssid, bssid, freq); 1256 return rpin; 1257 } 1258 1259 1260 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid, 1261 const char *pin, int p2p_group, u16 dev_pw_id) 1262 { 1263 os_get_reltime(&wpa_s->wps_pin_start_time); 1264 return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group, 1265 dev_pw_id, NULL, NULL, 0, 0); 1266 } 1267 1268 1269 void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s) 1270 { 1271 union wps_event_data data; 1272 1273 os_memset(&data, 0, sizeof(data)); 1274 data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED; 1275 data.fail.error_indication = WPS_EI_NO_ERROR; 1276 /* 1277 * Call wpas_notify_wps_event_fail() directly instead of through 1278 * wpa_supplicant_wps_event() which would end up registering unnecessary 1279 * timeouts (those are only for the case where the failure happens 1280 * during an EAP-WSC exchange). 1281 */ 1282 wpas_notify_wps_event_fail(wpa_s, &data.fail); 1283 } 1284 1285 /* Cancel the wps pbc/pin requests */ 1286 int wpas_wps_cancel(struct wpa_supplicant *wpa_s) 1287 { 1288 #ifdef CONFIG_AP 1289 if (wpa_s->ap_iface) { 1290 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode"); 1291 return wpa_supplicant_ap_wps_cancel(wpa_s); 1292 } 1293 #endif /* CONFIG_AP */ 1294 1295 if (wpa_s->wpa_state == WPA_SCANNING || 1296 wpa_s->wpa_state == WPA_DISCONNECTED) { 1297 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan"); 1298 wpa_supplicant_cancel_scan(wpa_s); 1299 wpas_clear_wps(wpa_s); 1300 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) { 1301 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - " 1302 "deauthenticate"); 1303 wpa_s->own_disconnect_req = 1; 1304 wpa_supplicant_deauthenticate(wpa_s, 1305 WLAN_REASON_DEAUTH_LEAVING); 1306 wpas_clear_wps(wpa_s); 1307 } else { 1308 wpas_wps_reenable_networks(wpa_s); 1309 wpas_wps_clear_ap_info(wpa_s); 1310 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) > 1311 0) 1312 wpas_clear_wps(wpa_s); 1313 } 1314 1315 wpa_s->after_wps = 0; 1316 1317 return 0; 1318 } 1319 1320 1321 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid, 1322 const char *pin, struct wps_new_ap_settings *settings) 1323 { 1324 struct wpa_ssid *ssid; 1325 char val[200]; 1326 char *pos, *end; 1327 int res; 1328 1329 #ifdef CONFIG_AP 1330 if (wpa_s->ap_iface) { 1331 wpa_printf(MSG_DEBUG, 1332 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled"); 1333 return -1; 1334 } 1335 #endif /* CONFIG_AP */ 1336 if (!pin) 1337 return -1; 1338 wpas_clear_wps(wpa_s); 1339 ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid); 1340 if (ssid == NULL) 1341 return -1; 1342 ssid->temporary = 1; 1343 pos = val; 1344 end = pos + sizeof(val); 1345 res = os_snprintf(pos, end - pos, "\"pin=%s", pin); 1346 if (os_snprintf_error(end - pos, res)) 1347 return -1; 1348 pos += res; 1349 if (settings) { 1350 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s " 1351 "new_encr=%s new_key=%s", 1352 settings->ssid_hex, settings->auth, 1353 settings->encr, settings->key_hex); 1354 if (os_snprintf_error(end - pos, res)) 1355 return -1; 1356 pos += res; 1357 } 1358 res = os_snprintf(pos, end - pos, "\""); 1359 if (os_snprintf_error(end - pos, res)) 1360 return -1; 1361 if (wpa_config_set(ssid, "phase1", val, 0) < 0) 1362 return -1; 1363 if (wpa_s->wps_fragment_size) 1364 ssid->eap.fragment_size = wpa_s->wps_fragment_size; 1365 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout, 1366 wpa_s, NULL); 1367 wpas_wps_reassoc(wpa_s, ssid, bssid, 0); 1368 return 0; 1369 } 1370 1371 1372 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, 1373 const u8 *p2p_dev_addr, const u8 *psk, 1374 size_t psk_len) 1375 { 1376 if (is_zero_ether_addr(p2p_dev_addr)) { 1377 wpa_printf(MSG_DEBUG, 1378 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR, 1379 MAC2STR(mac_addr)); 1380 } else { 1381 wpa_printf(MSG_DEBUG, 1382 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR 1383 " P2P Device Addr " MACSTR, 1384 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr)); 1385 } 1386 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len); 1387 1388 /* TODO */ 1389 1390 return 0; 1391 } 1392 1393 1394 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e, 1395 const struct wps_device_data *dev) 1396 { 1397 char uuid[40], txt[400]; 1398 int len; 1399 char devtype[WPS_DEV_TYPE_BUFSIZE]; 1400 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid))) 1401 return; 1402 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid); 1403 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR 1404 " [%s|%s|%s|%s|%s|%s]", 1405 uuid, MAC2STR(dev->mac_addr), dev->device_name, 1406 dev->manufacturer, dev->model_name, 1407 dev->model_number, dev->serial_number, 1408 wps_dev_type_bin2str(dev->pri_dev_type, devtype, 1409 sizeof(devtype))); 1410 if (!os_snprintf_error(sizeof(txt), len)) 1411 wpa_printf(MSG_INFO, "%s", txt); 1412 } 1413 1414 1415 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id, 1416 u16 sel_reg_config_methods) 1417 { 1418 #ifdef CONFIG_WPS_ER 1419 struct wpa_supplicant *wpa_s = ctx; 1420 1421 if (wpa_s->wps_er == NULL) 1422 return; 1423 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d " 1424 "dev_password_id=%u sel_reg_config_methods=0x%x", 1425 sel_reg, dev_passwd_id, sel_reg_config_methods); 1426 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id, 1427 sel_reg_config_methods); 1428 #endif /* CONFIG_WPS_ER */ 1429 } 1430 1431 1432 static u16 wps_fix_config_methods(u16 config_methods) 1433 { 1434 if ((config_methods & 1435 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY | 1436 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) { 1437 wpa_printf(MSG_INFO, "WPS: Converting display to " 1438 "virtual_display for WPS 2.0 compliance"); 1439 config_methods |= WPS_CONFIG_VIRT_DISPLAY; 1440 } 1441 if ((config_methods & 1442 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON | 1443 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) { 1444 wpa_printf(MSG_INFO, "WPS: Converting push_button to " 1445 "virtual_push_button for WPS 2.0 compliance"); 1446 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON; 1447 } 1448 1449 return config_methods; 1450 } 1451 1452 1453 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s, 1454 struct wps_context *wps) 1455 { 1456 char buf[50]; 1457 const char *src; 1458 1459 if (is_nil_uuid(wpa_s->conf->uuid)) { 1460 struct wpa_supplicant *first; 1461 first = wpa_s->global->ifaces; 1462 while (first && first->next) 1463 first = first->next; 1464 if (first && first != wpa_s) { 1465 if (wps != wpa_s->global->ifaces->wps) 1466 os_memcpy(wps->uuid, 1467 wpa_s->global->ifaces->wps->uuid, 1468 WPS_UUID_LEN); 1469 src = "from the first interface"; 1470 } else { 1471 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid); 1472 src = "based on MAC address"; 1473 } 1474 } else { 1475 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN); 1476 src = "based on configuration"; 1477 } 1478 1479 uuid_bin2str(wps->uuid, buf, sizeof(buf)); 1480 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf); 1481 } 1482 1483 1484 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s, 1485 struct wps_context *wps) 1486 { 1487 wpabuf_free(wps->dev.vendor_ext_m1); 1488 wps->dev.vendor_ext_m1 = NULL; 1489 1490 if (wpa_s->conf->wps_vendor_ext_m1) { 1491 wps->dev.vendor_ext_m1 = 1492 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1); 1493 if (!wps->dev.vendor_ext_m1) { 1494 wpa_printf(MSG_ERROR, "WPS: Cannot " 1495 "allocate memory for vendor_ext_m1"); 1496 } 1497 } 1498 } 1499 1500 1501 int wpas_wps_init(struct wpa_supplicant *wpa_s) 1502 { 1503 struct wps_context *wps; 1504 struct wps_registrar_config rcfg; 1505 struct hostapd_hw_modes *modes; 1506 u16 m; 1507 1508 wps = os_zalloc(sizeof(*wps)); 1509 if (wps == NULL) 1510 return -1; 1511 1512 wps->cred_cb = wpa_supplicant_wps_cred; 1513 wps->event_cb = wpa_supplicant_wps_event; 1514 wps->rf_band_cb = wpa_supplicant_wps_rf_band; 1515 wps->cb_ctx = wpa_s; 1516 1517 wps->dev.device_name = wpa_s->conf->device_name; 1518 wps->dev.manufacturer = wpa_s->conf->manufacturer; 1519 wps->dev.model_name = wpa_s->conf->model_name; 1520 wps->dev.model_number = wpa_s->conf->model_number; 1521 wps->dev.serial_number = wpa_s->conf->serial_number; 1522 wps->config_methods = 1523 wps_config_methods_str2bin(wpa_s->conf->config_methods); 1524 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 1525 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 1526 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config " 1527 "methods are not allowed at the same time"); 1528 os_free(wps); 1529 return -1; 1530 } 1531 wps->config_methods = wps_fix_config_methods(wps->config_methods); 1532 wps->dev.config_methods = wps->config_methods; 1533 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 1534 WPS_DEV_TYPE_LEN); 1535 1536 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 1537 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 1538 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types); 1539 1540 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 1541 1542 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 1543 modes = wpa_s->hw.modes; 1544 if (modes) { 1545 for (m = 0; m < wpa_s->hw.num_modes; m++) { 1546 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B || 1547 modes[m].mode == HOSTAPD_MODE_IEEE80211G) 1548 wps->dev.rf_bands |= WPS_RF_24GHZ; 1549 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A) 1550 wps->dev.rf_bands |= WPS_RF_50GHZ; 1551 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD) 1552 wps->dev.rf_bands |= WPS_RF_60GHZ; 1553 } 1554 } 1555 if (wps->dev.rf_bands == 0) { 1556 /* 1557 * Default to claiming support for both bands if the driver 1558 * does not provide support for fetching supported bands. 1559 */ 1560 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; 1561 } 1562 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN); 1563 wpas_wps_set_uuid(wpa_s, wps); 1564 1565 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK; 1566 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP; 1567 1568 os_memset(&rcfg, 0, sizeof(rcfg)); 1569 rcfg.new_psk_cb = wpas_wps_new_psk_cb; 1570 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb; 1571 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb; 1572 rcfg.cb_ctx = wpa_s; 1573 1574 wps->registrar = wps_registrar_init(wps, &rcfg); 1575 if (wps->registrar == NULL) { 1576 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar"); 1577 os_free(wps); 1578 return -1; 1579 } 1580 1581 wpa_s->wps = wps; 1582 1583 return 0; 1584 } 1585 1586 1587 #ifdef CONFIG_WPS_ER 1588 static void wpas_wps_nfc_clear(struct wps_context *wps) 1589 { 1590 wps->ap_nfc_dev_pw_id = 0; 1591 wpabuf_free(wps->ap_nfc_dh_pubkey); 1592 wps->ap_nfc_dh_pubkey = NULL; 1593 wpabuf_free(wps->ap_nfc_dh_privkey); 1594 wps->ap_nfc_dh_privkey = NULL; 1595 wpabuf_free(wps->ap_nfc_dev_pw); 1596 wps->ap_nfc_dev_pw = NULL; 1597 } 1598 #endif /* CONFIG_WPS_ER */ 1599 1600 1601 void wpas_wps_deinit(struct wpa_supplicant *wpa_s) 1602 { 1603 wpas_wps_assoc_with_cred_cancel(wpa_s); 1604 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL); 1605 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL); 1606 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL); 1607 wpas_wps_clear_ap_info(wpa_s); 1608 1609 #ifdef CONFIG_P2P 1610 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL); 1611 #endif /* CONFIG_P2P */ 1612 1613 if (wpa_s->wps == NULL) 1614 return; 1615 1616 #ifdef CONFIG_WPS_ER 1617 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1618 wpa_s->wps_er = NULL; 1619 wpas_wps_nfc_clear(wpa_s->wps); 1620 #endif /* CONFIG_WPS_ER */ 1621 1622 wps_registrar_deinit(wpa_s->wps->registrar); 1623 wpabuf_free(wpa_s->wps->dh_pubkey); 1624 wpabuf_free(wpa_s->wps->dh_privkey); 1625 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1); 1626 os_free(wpa_s->wps->network_key); 1627 os_free(wpa_s->wps); 1628 wpa_s->wps = NULL; 1629 } 1630 1631 1632 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s, 1633 struct wpa_ssid *ssid, struct wpa_bss *bss) 1634 { 1635 struct wpabuf *wps_ie; 1636 1637 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) 1638 return -1; 1639 1640 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1641 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1642 if (!wps_ie) { 1643 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1644 return 0; 1645 } 1646 1647 if (!wps_is_selected_pbc_registrar(wps_ie)) { 1648 wpa_printf(MSG_DEBUG, " skip - WPS AP " 1649 "without active PBC Registrar"); 1650 wpabuf_free(wps_ie); 1651 return 0; 1652 } 1653 1654 /* TODO: overlap detection */ 1655 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1656 "(Active PBC)"); 1657 wpabuf_free(wps_ie); 1658 return 1; 1659 } 1660 1661 if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1662 if (!wps_ie) { 1663 wpa_printf(MSG_DEBUG, " skip - non-WPS AP"); 1664 return 0; 1665 } 1666 1667 /* 1668 * Start with WPS APs that advertise our address as an 1669 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and 1670 * allow any WPS AP after couple of scans since some APs do not 1671 * set Selected Registrar attribute properly when using 1672 * external Registrar. 1673 */ 1674 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) { 1675 struct os_reltime age; 1676 1677 os_reltime_age(&wpa_s->wps_pin_start_time, &age); 1678 1679 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG || 1680 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) { 1681 wpa_printf(MSG_DEBUG, 1682 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)", 1683 wpa_s->scan_runs, (int) age.sec); 1684 wpabuf_free(wps_ie); 1685 return 0; 1686 } 1687 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1688 } else { 1689 wpa_printf(MSG_DEBUG, " selected based on WPS IE " 1690 "(Authorized MAC or Active PIN)"); 1691 } 1692 wpabuf_free(wps_ie); 1693 return 1; 1694 } 1695 1696 if (wps_ie) { 1697 wpa_printf(MSG_DEBUG, " selected based on WPS IE"); 1698 wpabuf_free(wps_ie); 1699 return 1; 1700 } 1701 1702 return -1; 1703 } 1704 1705 1706 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s, 1707 struct wpa_ssid *ssid, 1708 struct wpa_bss *bss) 1709 { 1710 struct wpabuf *wps_ie = NULL; 1711 int ret = 0; 1712 1713 if (eap_is_wps_pbc_enrollee(&ssid->eap)) { 1714 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1715 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) { 1716 /* allow wildcard SSID for WPS PBC */ 1717 ret = 1; 1718 } 1719 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) { 1720 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1721 if (wps_ie && 1722 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) || 1723 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) { 1724 /* allow wildcard SSID for WPS PIN */ 1725 ret = 1; 1726 } 1727 } 1728 1729 if (!ret && ssid->bssid_set && 1730 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) { 1731 /* allow wildcard SSID due to hardcoded BSSID match */ 1732 ret = 1; 1733 } 1734 1735 #ifdef CONFIG_WPS_STRICT 1736 if (wps_ie) { 1737 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len > 1738 0, bss->bssid) < 0) 1739 ret = 0; 1740 if (bss->beacon_ie_len) { 1741 struct wpabuf *bcn_wps; 1742 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon( 1743 bss, WPS_IE_VENDOR_TYPE); 1744 if (bcn_wps == NULL) { 1745 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE " 1746 "missing from AP Beacon"); 1747 ret = 0; 1748 } else { 1749 if (wps_validate_beacon(wps_ie) < 0) 1750 ret = 0; 1751 wpabuf_free(bcn_wps); 1752 } 1753 } 1754 } 1755 #endif /* CONFIG_WPS_STRICT */ 1756 1757 wpabuf_free(wps_ie); 1758 1759 return ret; 1760 } 1761 1762 1763 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s, 1764 struct wpa_bss *selected, struct wpa_ssid *ssid) 1765 { 1766 const u8 *sel_uuid; 1767 struct wpabuf *wps_ie; 1768 int ret = 0; 1769 size_t i; 1770 1771 if (!eap_is_wps_pbc_enrollee(&ssid->eap)) 1772 return 0; 1773 1774 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is " 1775 "present in scan results; selected BSSID " MACSTR, 1776 MAC2STR(selected->bssid)); 1777 1778 /* Make sure that only one AP is in active PBC mode */ 1779 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE); 1780 if (wps_ie) { 1781 sel_uuid = wps_get_uuid_e(wps_ie); 1782 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS", 1783 sel_uuid, UUID_LEN); 1784 } else { 1785 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include " 1786 "WPS IE?!"); 1787 sel_uuid = NULL; 1788 } 1789 1790 for (i = 0; i < wpa_s->num_wps_ap; i++) { 1791 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 1792 1793 if (!ap->pbc_active || 1794 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0) 1795 continue; 1796 1797 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: " 1798 MACSTR, MAC2STR(ap->bssid)); 1799 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS", 1800 ap->uuid, UUID_LEN); 1801 if (sel_uuid == NULL || 1802 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) { 1803 ret = 1; /* PBC overlap */ 1804 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: " 1805 MACSTR " and " MACSTR, 1806 MAC2STR(selected->bssid), 1807 MAC2STR(ap->bssid)); 1808 break; 1809 } 1810 1811 /* TODO: verify that this is reasonable dual-band situation */ 1812 } 1813 1814 wpabuf_free(wps_ie); 1815 1816 return ret; 1817 } 1818 1819 1820 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s) 1821 { 1822 struct wpa_bss *bss; 1823 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0; 1824 1825 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED) 1826 return; 1827 1828 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1829 struct wpabuf *ie; 1830 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE); 1831 if (!ie) 1832 continue; 1833 if (wps_is_selected_pbc_registrar(ie)) 1834 pbc++; 1835 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0)) 1836 auth++; 1837 else if (wps_is_selected_pin_registrar(ie)) 1838 pin++; 1839 else 1840 wps++; 1841 wpabuf_free(ie); 1842 } 1843 1844 if (pbc) 1845 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC); 1846 else if (auth) 1847 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH); 1848 else if (pin) 1849 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN); 1850 else if (wps) 1851 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE); 1852 } 1853 1854 1855 int wpas_wps_searching(struct wpa_supplicant *wpa_s) 1856 { 1857 struct wpa_ssid *ssid; 1858 1859 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1860 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled) 1861 return 1; 1862 } 1863 1864 return 0; 1865 } 1866 1867 1868 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf, 1869 char *end) 1870 { 1871 struct wpabuf *wps_ie; 1872 int ret; 1873 1874 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA); 1875 if (wps_ie == NULL) 1876 return 0; 1877 1878 ret = wps_attr_text(wps_ie, buf, end); 1879 wpabuf_free(wps_ie); 1880 return ret; 1881 } 1882 1883 1884 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter) 1885 { 1886 #ifdef CONFIG_WPS_ER 1887 if (wpa_s->wps_er) { 1888 wps_er_refresh(wpa_s->wps_er); 1889 return 0; 1890 } 1891 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter); 1892 if (wpa_s->wps_er == NULL) 1893 return -1; 1894 return 0; 1895 #else /* CONFIG_WPS_ER */ 1896 return 0; 1897 #endif /* CONFIG_WPS_ER */ 1898 } 1899 1900 1901 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s) 1902 { 1903 #ifdef CONFIG_WPS_ER 1904 wps_er_deinit(wpa_s->wps_er, NULL, NULL); 1905 wpa_s->wps_er = NULL; 1906 #endif /* CONFIG_WPS_ER */ 1907 } 1908 1909 1910 #ifdef CONFIG_WPS_ER 1911 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr, 1912 const char *uuid, const char *pin) 1913 { 1914 u8 u[UUID_LEN]; 1915 const u8 *use_uuid = NULL; 1916 u8 addr_buf[ETH_ALEN]; 1917 1918 if (os_strcmp(uuid, "any") == 0) { 1919 } else if (uuid_str2bin(uuid, u) == 0) { 1920 use_uuid = u; 1921 } else if (hwaddr_aton(uuid, addr_buf) == 0) { 1922 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf); 1923 if (use_uuid == NULL) 1924 return -1; 1925 } else 1926 return -1; 1927 return wps_registrar_add_pin(wpa_s->wps->registrar, addr, 1928 use_uuid, 1929 (const u8 *) pin, os_strlen(pin), 300); 1930 } 1931 1932 1933 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid) 1934 { 1935 u8 u[UUID_LEN], *use_uuid = NULL; 1936 u8 addr[ETH_ALEN], *use_addr = NULL; 1937 1938 if (uuid_str2bin(uuid, u) == 0) 1939 use_uuid = u; 1940 else if (hwaddr_aton(uuid, addr) == 0) 1941 use_addr = addr; 1942 else 1943 return -1; 1944 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr); 1945 } 1946 1947 1948 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid, 1949 const char *pin) 1950 { 1951 u8 u[UUID_LEN], *use_uuid = NULL; 1952 u8 addr[ETH_ALEN], *use_addr = NULL; 1953 1954 if (uuid_str2bin(uuid, u) == 0) 1955 use_uuid = u; 1956 else if (hwaddr_aton(uuid, addr) == 0) 1957 use_addr = addr; 1958 else 1959 return -1; 1960 1961 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin, 1962 os_strlen(pin)); 1963 } 1964 1965 1966 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid, 1967 struct wps_credential *cred) 1968 { 1969 os_memset(cred, 0, sizeof(*cred)); 1970 if (ssid->ssid_len > SSID_MAX_LEN) 1971 return -1; 1972 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len); 1973 cred->ssid_len = ssid->ssid_len; 1974 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 1975 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ? 1976 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK; 1977 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP) 1978 cred->encr_type = WPS_ENCR_AES; 1979 else 1980 cred->encr_type = WPS_ENCR_TKIP; 1981 if (ssid->passphrase) { 1982 cred->key_len = os_strlen(ssid->passphrase); 1983 if (cred->key_len >= 64) 1984 return -1; 1985 os_memcpy(cred->key, ssid->passphrase, cred->key_len); 1986 } else if (ssid->psk_set) { 1987 cred->key_len = 32; 1988 os_memcpy(cred->key, ssid->psk, 32); 1989 } else 1990 return -1; 1991 } else { 1992 cred->auth_type = WPS_AUTH_OPEN; 1993 cred->encr_type = WPS_ENCR_NONE; 1994 } 1995 1996 return 0; 1997 } 1998 1999 2000 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid, 2001 int id) 2002 { 2003 u8 u[UUID_LEN], *use_uuid = NULL; 2004 u8 addr[ETH_ALEN], *use_addr = NULL; 2005 struct wpa_ssid *ssid; 2006 struct wps_credential cred; 2007 int ret; 2008 2009 if (uuid_str2bin(uuid, u) == 0) 2010 use_uuid = u; 2011 else if (hwaddr_aton(uuid, addr) == 0) 2012 use_addr = addr; 2013 else 2014 return -1; 2015 ssid = wpa_config_get_network(wpa_s->conf, id); 2016 if (ssid == NULL || ssid->ssid == NULL) 2017 return -1; 2018 2019 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2020 return -1; 2021 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred); 2022 os_memset(&cred, 0, sizeof(cred)); 2023 return ret; 2024 } 2025 2026 2027 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid, 2028 const char *pin, struct wps_new_ap_settings *settings) 2029 { 2030 u8 u[UUID_LEN], *use_uuid = NULL; 2031 u8 addr[ETH_ALEN], *use_addr = NULL; 2032 struct wps_credential cred; 2033 size_t len; 2034 2035 if (uuid_str2bin(uuid, u) == 0) 2036 use_uuid = u; 2037 else if (hwaddr_aton(uuid, addr) == 0) 2038 use_addr = addr; 2039 else 2040 return -1; 2041 if (settings->ssid_hex == NULL || settings->auth == NULL || 2042 settings->encr == NULL || settings->key_hex == NULL) 2043 return -1; 2044 2045 os_memset(&cred, 0, sizeof(cred)); 2046 len = os_strlen(settings->ssid_hex); 2047 if ((len & 1) || len > 2 * sizeof(cred.ssid) || 2048 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2)) 2049 return -1; 2050 cred.ssid_len = len / 2; 2051 2052 len = os_strlen(settings->key_hex); 2053 if ((len & 1) || len > 2 * sizeof(cred.key) || 2054 hexstr2bin(settings->key_hex, cred.key, len / 2)) 2055 return -1; 2056 cred.key_len = len / 2; 2057 2058 if (os_strcmp(settings->auth, "OPEN") == 0) 2059 cred.auth_type = WPS_AUTH_OPEN; 2060 else if (os_strcmp(settings->auth, "WPAPSK") == 0) 2061 cred.auth_type = WPS_AUTH_WPAPSK; 2062 else if (os_strcmp(settings->auth, "WPA2PSK") == 0) 2063 cred.auth_type = WPS_AUTH_WPA2PSK; 2064 else 2065 return -1; 2066 2067 if (os_strcmp(settings->encr, "NONE") == 0) 2068 cred.encr_type = WPS_ENCR_NONE; 2069 #ifdef CONFIG_TESTING_OPTIONS 2070 else if (os_strcmp(settings->encr, "WEP") == 0) 2071 cred.encr_type = WPS_ENCR_WEP; 2072 #endif /* CONFIG_TESTING_OPTIONS */ 2073 else if (os_strcmp(settings->encr, "TKIP") == 0) 2074 cred.encr_type = WPS_ENCR_TKIP; 2075 else if (os_strcmp(settings->encr, "CCMP") == 0) 2076 cred.encr_type = WPS_ENCR_AES; 2077 else 2078 return -1; 2079 2080 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr, 2081 (const u8 *) pin, os_strlen(pin), &cred); 2082 } 2083 2084 2085 #ifdef CONFIG_WPS_NFC 2086 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s, 2087 int ndef, const char *uuid) 2088 { 2089 struct wpabuf *ret; 2090 u8 u[UUID_LEN], *use_uuid = NULL; 2091 u8 addr[ETH_ALEN], *use_addr = NULL; 2092 2093 if (!wpa_s->wps_er) 2094 return NULL; 2095 2096 if (uuid_str2bin(uuid, u) == 0) 2097 use_uuid = u; 2098 else if (hwaddr_aton(uuid, addr) == 0) 2099 use_addr = addr; 2100 else 2101 return NULL; 2102 2103 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr); 2104 if (ndef && ret) { 2105 struct wpabuf *tmp; 2106 tmp = ndef_build_wifi(ret); 2107 wpabuf_free(ret); 2108 if (tmp == NULL) 2109 return NULL; 2110 ret = tmp; 2111 } 2112 2113 return ret; 2114 } 2115 #endif /* CONFIG_WPS_NFC */ 2116 2117 2118 static int callbacks_pending = 0; 2119 2120 static void wpas_wps_terminate_cb(void *ctx) 2121 { 2122 wpa_printf(MSG_DEBUG, "WPS ER: Terminated"); 2123 if (--callbacks_pending <= 0) 2124 eloop_terminate(); 2125 } 2126 #endif /* CONFIG_WPS_ER */ 2127 2128 2129 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s) 2130 { 2131 #ifdef CONFIG_WPS_ER 2132 if (wpa_s->wps_er) { 2133 callbacks_pending++; 2134 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s); 2135 wpa_s->wps_er = NULL; 2136 return 1; 2137 } 2138 #endif /* CONFIG_WPS_ER */ 2139 return 0; 2140 } 2141 2142 2143 void wpas_wps_update_config(struct wpa_supplicant *wpa_s) 2144 { 2145 struct wps_context *wps = wpa_s->wps; 2146 2147 if (wps == NULL) 2148 return; 2149 2150 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) { 2151 wps->config_methods = wps_config_methods_str2bin( 2152 wpa_s->conf->config_methods); 2153 if ((wps->config_methods & 2154 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) == 2155 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) { 2156 wpa_printf(MSG_ERROR, "WPS: Both Label and Display " 2157 "config methods are not allowed at the " 2158 "same time"); 2159 wps->config_methods &= ~WPS_CONFIG_LABEL; 2160 } 2161 } 2162 wps->config_methods = wps_fix_config_methods(wps->config_methods); 2163 wps->dev.config_methods = wps->config_methods; 2164 2165 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) 2166 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type, 2167 WPS_DEV_TYPE_LEN); 2168 2169 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) { 2170 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types; 2171 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type, 2172 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN); 2173 } 2174 2175 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) 2176 wpas_wps_set_vendor_ext_m1(wpa_s, wps); 2177 2178 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION) 2179 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version); 2180 2181 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID) 2182 wpas_wps_set_uuid(wpa_s, wps); 2183 2184 if (wpa_s->conf->changed_parameters & 2185 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) { 2186 /* Update pointers to make sure they refer current values */ 2187 wps->dev.device_name = wpa_s->conf->device_name; 2188 wps->dev.manufacturer = wpa_s->conf->manufacturer; 2189 wps->dev.model_name = wpa_s->conf->model_name; 2190 wps->dev.model_number = wpa_s->conf->model_number; 2191 wps->dev.serial_number = wpa_s->conf->serial_number; 2192 } 2193 } 2194 2195 2196 #ifdef CONFIG_WPS_NFC 2197 2198 #ifdef CONFIG_WPS_ER 2199 static struct wpabuf * 2200 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef, 2201 struct wpa_ssid *ssid) 2202 { 2203 struct wpabuf *ret; 2204 struct wps_credential cred; 2205 2206 if (wpas_wps_network_to_cred(ssid, &cred) < 0) 2207 return NULL; 2208 2209 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred); 2210 2211 if (ndef && ret) { 2212 struct wpabuf *tmp; 2213 tmp = ndef_build_wifi(ret); 2214 wpabuf_free(ret); 2215 if (tmp == NULL) 2216 return NULL; 2217 ret = tmp; 2218 } 2219 2220 return ret; 2221 } 2222 #endif /* CONFIG_WPS_ER */ 2223 2224 2225 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s, 2226 int ndef, const char *id_str) 2227 { 2228 #ifdef CONFIG_WPS_ER 2229 if (id_str) { 2230 int id; 2231 char *end = NULL; 2232 struct wpa_ssid *ssid; 2233 2234 id = strtol(id_str, &end, 10); 2235 if (end && *end) 2236 return NULL; 2237 2238 ssid = wpa_config_get_network(wpa_s->conf, id); 2239 if (ssid == NULL) 2240 return NULL; 2241 return wpas_wps_network_config_token(wpa_s, ndef, ssid); 2242 } 2243 #endif /* CONFIG_WPS_ER */ 2244 #ifdef CONFIG_AP 2245 if (wpa_s->ap_iface) 2246 return wpas_ap_wps_nfc_config_token(wpa_s, ndef); 2247 #endif /* CONFIG_AP */ 2248 return NULL; 2249 } 2250 2251 2252 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef) 2253 { 2254 if (wpa_s->conf->wps_nfc_pw_from_config) { 2255 return wps_nfc_token_build(ndef, 2256 wpa_s->conf->wps_nfc_dev_pw_id, 2257 wpa_s->conf->wps_nfc_dh_pubkey, 2258 wpa_s->conf->wps_nfc_dev_pw); 2259 } 2260 2261 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id, 2262 &wpa_s->conf->wps_nfc_dh_pubkey, 2263 &wpa_s->conf->wps_nfc_dh_privkey, 2264 &wpa_s->conf->wps_nfc_dev_pw); 2265 } 2266 2267 2268 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr, 2269 const u8 *bssid, 2270 const struct wpabuf *dev_pw, u16 dev_pw_id, 2271 int p2p_group, const u8 *peer_pubkey_hash, 2272 const u8 *ssid, size_t ssid_len, int freq) 2273 { 2274 struct wps_context *wps = wpa_s->wps; 2275 char pw[32 * 2 + 1]; 2276 2277 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2278 dev_pw = wpa_s->conf->wps_nfc_dev_pw; 2279 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id; 2280 } 2281 2282 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL || 2283 wpa_s->conf->wps_nfc_dh_privkey == NULL) { 2284 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - " 2285 "cannot start NFC-triggered connection"); 2286 return -1; 2287 } 2288 2289 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) { 2290 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - " 2291 "cannot start NFC-triggered connection", dev_pw_id); 2292 return -1; 2293 } 2294 2295 dh5_free(wps->dh_ctx); 2296 wpabuf_free(wps->dh_pubkey); 2297 wpabuf_free(wps->dh_privkey); 2298 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2299 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2300 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) { 2301 wps->dh_ctx = NULL; 2302 wpabuf_free(wps->dh_pubkey); 2303 wps->dh_pubkey = NULL; 2304 wpabuf_free(wps->dh_privkey); 2305 wps->dh_privkey = NULL; 2306 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key"); 2307 return -1; 2308 } 2309 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey); 2310 if (wps->dh_ctx == NULL) { 2311 wpabuf_free(wps->dh_pubkey); 2312 wps->dh_pubkey = NULL; 2313 wpabuf_free(wps->dh_privkey); 2314 wps->dh_privkey = NULL; 2315 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context"); 2316 return -1; 2317 } 2318 2319 if (dev_pw) { 2320 wpa_snprintf_hex_uppercase(pw, sizeof(pw), 2321 wpabuf_head(dev_pw), 2322 wpabuf_len(dev_pw)); 2323 } 2324 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid, 2325 dev_pw ? pw : NULL, 2326 p2p_group, dev_pw_id, peer_pubkey_hash, 2327 ssid, ssid_len, freq); 2328 } 2329 2330 2331 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s, 2332 struct wps_parse_attr *attr) 2333 { 2334 /* 2335 * Disable existing networks temporarily to allow the newly learned 2336 * credential to be preferred. Enable the temporarily disabled networks 2337 * after 10 seconds. 2338 */ 2339 wpas_wps_temp_disable(wpa_s, NULL); 2340 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s, 2341 NULL); 2342 2343 if (wps_oob_use_cred(wpa_s->wps, attr) < 0) 2344 return -1; 2345 2346 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2347 return 0; 2348 2349 if (attr->ap_channel) { 2350 u16 chan = WPA_GET_BE16(attr->ap_channel); 2351 int freq = 0; 2352 2353 if (chan >= 1 && chan <= 13) 2354 freq = 2407 + 5 * chan; 2355 else if (chan == 14) 2356 freq = 2484; 2357 else if (chan >= 30) 2358 freq = 5000 + 5 * chan; 2359 2360 if (freq) { 2361 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz", 2362 chan, freq); 2363 wpa_s->after_wps = 5; 2364 wpa_s->wps_freq = freq; 2365 } 2366 } 2367 2368 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network " 2369 "based on the received credential added"); 2370 wpa_s->normal_scans = 0; 2371 wpa_supplicant_reinit_autoscan(wpa_s); 2372 wpa_s->disconnected = 0; 2373 wpa_s->reassociate = 1; 2374 2375 wpa_supplicant_cancel_sched_scan(wpa_s); 2376 wpa_supplicant_req_scan(wpa_s, 0, 0); 2377 2378 return 0; 2379 } 2380 2381 2382 #ifdef CONFIG_WPS_ER 2383 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s, 2384 struct wps_parse_attr *attr) 2385 { 2386 return wps_registrar_add_nfc_password_token( 2387 wpa_s->wps->registrar, attr->oob_dev_password, 2388 attr->oob_dev_password_len); 2389 } 2390 #endif /* CONFIG_WPS_ER */ 2391 2392 2393 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s, 2394 const struct wpabuf *wps) 2395 { 2396 struct wps_parse_attr attr; 2397 2398 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps); 2399 2400 if (wps_parse_msg(wps, &attr)) { 2401 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag"); 2402 return -1; 2403 } 2404 2405 if (attr.num_cred) 2406 return wpas_wps_use_cred(wpa_s, &attr); 2407 2408 #ifdef CONFIG_WPS_ER 2409 if (attr.oob_dev_password) 2410 return wpas_wps_add_nfc_password_token(wpa_s, &attr); 2411 #endif /* CONFIG_WPS_ER */ 2412 2413 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag"); 2414 return -1; 2415 } 2416 2417 2418 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s, 2419 const struct wpabuf *data, int forced_freq) 2420 { 2421 const struct wpabuf *wps = data; 2422 struct wpabuf *tmp = NULL; 2423 int ret; 2424 2425 if (wpabuf_len(data) < 4) 2426 return -1; 2427 2428 if (*wpabuf_head_u8(data) != 0x10) { 2429 /* Assume this contains full NDEF record */ 2430 tmp = ndef_parse_wifi(data); 2431 if (tmp == NULL) { 2432 #ifdef CONFIG_P2P 2433 tmp = ndef_parse_p2p(data); 2434 if (tmp) { 2435 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp, 2436 forced_freq); 2437 wpabuf_free(tmp); 2438 return ret; 2439 } 2440 #endif /* CONFIG_P2P */ 2441 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF"); 2442 return -1; 2443 } 2444 wps = tmp; 2445 } 2446 2447 ret = wpas_wps_nfc_tag_process(wpa_s, wps); 2448 wpabuf_free(tmp); 2449 return ret; 2450 } 2451 2452 2453 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, 2454 int ndef) 2455 { 2456 struct wpabuf *ret; 2457 2458 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL && 2459 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2460 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2461 return NULL; 2462 2463 ret = wps_build_nfc_handover_req(wpa_s->wps, 2464 wpa_s->conf->wps_nfc_dh_pubkey); 2465 2466 if (ndef && ret) { 2467 struct wpabuf *tmp; 2468 tmp = ndef_build_wifi(ret); 2469 wpabuf_free(ret); 2470 if (tmp == NULL) 2471 return NULL; 2472 ret = tmp; 2473 } 2474 2475 return ret; 2476 } 2477 2478 2479 #ifdef CONFIG_WPS_NFC 2480 2481 static struct wpabuf * 2482 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef, 2483 const char *uuid) 2484 { 2485 #ifdef CONFIG_WPS_ER 2486 struct wpabuf *ret; 2487 u8 u[UUID_LEN], *use_uuid = NULL; 2488 u8 addr[ETH_ALEN], *use_addr = NULL; 2489 struct wps_context *wps = wpa_s->wps; 2490 2491 if (wps == NULL) 2492 return NULL; 2493 2494 if (uuid == NULL) 2495 return NULL; 2496 if (uuid_str2bin(uuid, u) == 0) 2497 use_uuid = u; 2498 else if (hwaddr_aton(uuid, addr) == 0) 2499 use_addr = addr; 2500 else 2501 return NULL; 2502 2503 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) { 2504 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey, 2505 &wpa_s->conf->wps_nfc_dh_privkey) < 0) 2506 return NULL; 2507 } 2508 2509 wpas_wps_nfc_clear(wps); 2510 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER; 2511 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey); 2512 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey); 2513 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) { 2514 wpas_wps_nfc_clear(wps); 2515 return NULL; 2516 } 2517 2518 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid, 2519 use_addr, wpa_s->conf->wps_nfc_dh_pubkey); 2520 if (ndef && ret) { 2521 struct wpabuf *tmp; 2522 tmp = ndef_build_wifi(ret); 2523 wpabuf_free(ret); 2524 if (tmp == NULL) 2525 return NULL; 2526 ret = tmp; 2527 } 2528 2529 return ret; 2530 #else /* CONFIG_WPS_ER */ 2531 return NULL; 2532 #endif /* CONFIG_WPS_ER */ 2533 } 2534 #endif /* CONFIG_WPS_NFC */ 2535 2536 2537 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s, 2538 int ndef, int cr, const char *uuid) 2539 { 2540 struct wpabuf *ret; 2541 if (!cr) 2542 return NULL; 2543 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef); 2544 if (ret) 2545 return ret; 2546 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid); 2547 } 2548 2549 2550 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s, 2551 const struct wpabuf *data) 2552 { 2553 struct wpabuf *wps; 2554 int ret = -1; 2555 u16 wsc_len; 2556 const u8 *pos; 2557 struct wpabuf msg; 2558 struct wps_parse_attr attr; 2559 u16 dev_pw_id; 2560 const u8 *bssid = NULL; 2561 int freq = 0; 2562 2563 wps = ndef_parse_wifi(data); 2564 if (wps == NULL) 2565 return -1; 2566 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2567 "payload from NFC connection handover"); 2568 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2569 if (wpabuf_len(wps) < 2) { 2570 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select " 2571 "Message"); 2572 goto out; 2573 } 2574 pos = wpabuf_head(wps); 2575 wsc_len = WPA_GET_BE16(pos); 2576 if (wsc_len > wpabuf_len(wps) - 2) { 2577 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2578 "in Wi-Fi Handover Select Message", wsc_len); 2579 goto out; 2580 } 2581 pos += 2; 2582 2583 wpa_hexdump(MSG_DEBUG, 2584 "WPS: WSC attributes in Wi-Fi Handover Select Message", 2585 pos, wsc_len); 2586 if (wsc_len < wpabuf_len(wps) - 2) { 2587 wpa_hexdump(MSG_DEBUG, 2588 "WPS: Ignore extra data after WSC attributes", 2589 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2590 } 2591 2592 wpabuf_set(&msg, pos, wsc_len); 2593 ret = wps_parse_msg(&msg, &attr); 2594 if (ret < 0) { 2595 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2596 "Wi-Fi Handover Select Message"); 2597 goto out; 2598 } 2599 2600 if (attr.oob_dev_password == NULL || 2601 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2602 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2603 "included in Wi-Fi Handover Select Message"); 2604 ret = -1; 2605 goto out; 2606 } 2607 2608 if (attr.ssid == NULL) { 2609 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover " 2610 "Select Message"); 2611 ret = -1; 2612 goto out; 2613 } 2614 2615 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len); 2616 2617 if (attr.mac_addr) { 2618 bssid = attr.mac_addr; 2619 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR, 2620 MAC2STR(bssid)); 2621 } 2622 2623 if (attr.rf_bands) 2624 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands); 2625 2626 if (attr.ap_channel) { 2627 u16 chan = WPA_GET_BE16(attr.ap_channel); 2628 2629 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan); 2630 2631 if (chan >= 1 && chan <= 13 && 2632 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ)) 2633 freq = 2407 + 5 * chan; 2634 else if (chan == 14 && 2635 (attr.rf_bands == NULL || 2636 *attr.rf_bands & WPS_RF_24GHZ)) 2637 freq = 2484; 2638 else if (chan >= 30 && 2639 (attr.rf_bands == NULL || 2640 *attr.rf_bands & WPS_RF_50GHZ)) 2641 freq = 5000 + 5 * chan; 2642 else if (chan >= 1 && chan <= 4 && 2643 (attr.rf_bands == NULL || 2644 *attr.rf_bands & WPS_RF_60GHZ)) 2645 freq = 56160 + 2160 * chan; 2646 2647 if (freq) { 2648 wpa_printf(MSG_DEBUG, 2649 "WPS: AP indicated channel %u -> %u MHz", 2650 chan, freq); 2651 } 2652 } 2653 2654 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2655 attr.oob_dev_password, attr.oob_dev_password_len); 2656 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2657 WPS_OOB_PUBKEY_HASH_LEN); 2658 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2659 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2660 "%u in Wi-Fi Handover Select Message", dev_pw_id); 2661 ret = -1; 2662 goto out; 2663 } 2664 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash", 2665 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2666 2667 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0, 2668 attr.oob_dev_password, 2669 attr.ssid, attr.ssid_len, freq); 2670 2671 out: 2672 wpabuf_free(wps); 2673 return ret; 2674 } 2675 2676 2677 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2678 const struct wpabuf *req, 2679 const struct wpabuf *sel) 2680 { 2681 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported"); 2682 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req); 2683 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel); 2684 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel); 2685 } 2686 2687 2688 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s, 2689 const struct wpabuf *req, 2690 const struct wpabuf *sel) 2691 { 2692 struct wpabuf *wps; 2693 int ret = -1; 2694 u16 wsc_len; 2695 const u8 *pos; 2696 struct wpabuf msg; 2697 struct wps_parse_attr attr; 2698 u16 dev_pw_id; 2699 2700 /* 2701 * Enrollee/station is always initiator of the NFC connection handover, 2702 * so use the request message here to find Enrollee public key hash. 2703 */ 2704 wps = ndef_parse_wifi(req); 2705 if (wps == NULL) 2706 return -1; 2707 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc " 2708 "payload from NFC connection handover"); 2709 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps); 2710 if (wpabuf_len(wps) < 2) { 2711 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request " 2712 "Message"); 2713 goto out; 2714 } 2715 pos = wpabuf_head(wps); 2716 wsc_len = WPA_GET_BE16(pos); 2717 if (wsc_len > wpabuf_len(wps) - 2) { 2718 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) " 2719 "in rt Wi-Fi Handover Request Message", wsc_len); 2720 goto out; 2721 } 2722 pos += 2; 2723 2724 wpa_hexdump(MSG_DEBUG, 2725 "WPS: WSC attributes in Wi-Fi Handover Request Message", 2726 pos, wsc_len); 2727 if (wsc_len < wpabuf_len(wps) - 2) { 2728 wpa_hexdump(MSG_DEBUG, 2729 "WPS: Ignore extra data after WSC attributes", 2730 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len); 2731 } 2732 2733 wpabuf_set(&msg, pos, wsc_len); 2734 ret = wps_parse_msg(&msg, &attr); 2735 if (ret < 0) { 2736 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in " 2737 "Wi-Fi Handover Request Message"); 2738 goto out; 2739 } 2740 2741 if (attr.oob_dev_password == NULL || 2742 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) { 2743 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password " 2744 "included in Wi-Fi Handover Request Message"); 2745 ret = -1; 2746 goto out; 2747 } 2748 2749 if (attr.uuid_e == NULL) { 2750 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi " 2751 "Handover Request Message"); 2752 ret = -1; 2753 goto out; 2754 } 2755 2756 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN); 2757 2758 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password", 2759 attr.oob_dev_password, attr.oob_dev_password_len); 2760 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password + 2761 WPS_OOB_PUBKEY_HASH_LEN); 2762 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) { 2763 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID " 2764 "%u in Wi-Fi Handover Request Message", dev_pw_id); 2765 ret = -1; 2766 goto out; 2767 } 2768 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash", 2769 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN); 2770 2771 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar, 2772 attr.oob_dev_password, 2773 DEV_PW_NFC_CONNECTION_HANDOVER, 2774 NULL, 0, 1); 2775 2776 out: 2777 wpabuf_free(wps); 2778 return ret; 2779 } 2780 2781 #endif /* CONFIG_WPS_NFC */ 2782 2783 2784 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s) 2785 { 2786 size_t i; 2787 struct os_reltime now; 2788 2789 if (wpa_debug_level > MSG_DEBUG) 2790 return; 2791 2792 if (wpa_s->wps_ap == NULL) 2793 return; 2794 2795 os_get_reltime(&now); 2796 2797 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2798 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2799 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid); 2800 2801 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d " 2802 "tries=%d last_attempt=%d sec ago blacklist=%d", 2803 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries, 2804 ap->last_attempt.sec > 0 ? 2805 (int) now.sec - (int) ap->last_attempt.sec : -1, 2806 e ? e->count : 0); 2807 } 2808 } 2809 2810 2811 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s, 2812 const u8 *bssid) 2813 { 2814 size_t i; 2815 2816 if (wpa_s->wps_ap == NULL) 2817 return NULL; 2818 2819 for (i = 0; i < wpa_s->num_wps_ap; i++) { 2820 struct wps_ap_info *ap = &wpa_s->wps_ap[i]; 2821 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0) 2822 return ap; 2823 } 2824 2825 return NULL; 2826 } 2827 2828 2829 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s, 2830 struct wpa_scan_res *res) 2831 { 2832 struct wpabuf *wps; 2833 enum wps_ap_info_type type; 2834 struct wps_ap_info *ap; 2835 int r, pbc_active; 2836 const u8 *uuid; 2837 2838 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL) 2839 return; 2840 2841 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 2842 if (wps == NULL) 2843 return; 2844 2845 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1); 2846 if (r == 2) 2847 type = WPS_AP_SEL_REG_OUR; 2848 else if (r == 1) 2849 type = WPS_AP_SEL_REG; 2850 else 2851 type = WPS_AP_NOT_SEL_REG; 2852 2853 uuid = wps_get_uuid_e(wps); 2854 pbc_active = wps_is_selected_pbc_registrar(wps); 2855 2856 ap = wpas_wps_get_ap_info(wpa_s, res->bssid); 2857 if (ap) { 2858 if (ap->type != type) { 2859 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR 2860 " changed type %d -> %d", 2861 MAC2STR(res->bssid), ap->type, type); 2862 ap->type = type; 2863 if (type != WPS_AP_NOT_SEL_REG) 2864 wpa_blacklist_del(wpa_s, ap->bssid); 2865 } 2866 ap->pbc_active = pbc_active; 2867 if (uuid) 2868 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2869 goto out; 2870 } 2871 2872 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1, 2873 sizeof(struct wps_ap_info)); 2874 if (ap == NULL) 2875 goto out; 2876 2877 wpa_s->wps_ap = ap; 2878 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap]; 2879 wpa_s->num_wps_ap++; 2880 2881 os_memset(ap, 0, sizeof(*ap)); 2882 os_memcpy(ap->bssid, res->bssid, ETH_ALEN); 2883 ap->type = type; 2884 ap->pbc_active = pbc_active; 2885 if (uuid) 2886 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN); 2887 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added", 2888 MAC2STR(ap->bssid), ap->type); 2889 2890 out: 2891 wpabuf_free(wps); 2892 } 2893 2894 2895 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s, 2896 struct wpa_scan_results *scan_res) 2897 { 2898 size_t i; 2899 2900 for (i = 0; i < scan_res->num; i++) 2901 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]); 2902 2903 wpas_wps_dump_ap_info(wpa_s); 2904 } 2905 2906 2907 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid) 2908 { 2909 struct wps_ap_info *ap; 2910 2911 wpa_s->after_wps = 0; 2912 2913 if (!wpa_s->wps_ap_iter) 2914 return; 2915 ap = wpas_wps_get_ap_info(wpa_s, bssid); 2916 if (ap == NULL) 2917 return; 2918 ap->tries++; 2919 os_get_reltime(&ap->last_attempt); 2920 } 2921
